diff --git a/.github/workflows/publish_release.yml b/.github/workflows/publish_release.yml index f785286486..480c86b531 100644 --- a/.github/workflows/publish_release.yml +++ b/.github/workflows/publish_release.yml @@ -1,72 +1,17 @@ -name: Build and publish release binaries - +name: GitHub release on: push: tags: - '[0-9]+.[0-9]+.[0-9]+' +permissions: + contents: write + packages: read + jobs: - build_application: - name: Build application using the reusable workflow - uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_build.yml@v1 + github-release: + name: GitHub release using the reusable workflow + uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_app_release.yml@v1 + if: startsWith(github.ref, 'refs/tags/') with: - upload_app_binaries_artifact: "release_elfs" - - release: - name: Create GitHub Release with ELF binaries - needs: build_application - runs-on: ubuntu-latest - permissions: - contents: write - steps: - - name: Download built binaries - uses: actions/download-artifact@v4 - with: - name: release_elfs - path: binaries - - - name: Checkout repository - uses: actions/checkout@v4 - - - name: Rename ELF files per device - run: | - mkdir release_assets - for device_dir in binaries/*/; do - device=$(basename "$device_dir") - if [ -f "${device_dir}bin/app.elf" ]; then - cp "${device_dir}bin/app.elf" "release_assets/app-${device}-${GITHUB_REF_NAME}.elf" - fi - done - ls -la release_assets/ - - - name: Extract release notes from CHANGELOG.md - id: changelog - run: | - VERSION="${GITHUB_REF_NAME}" - # Extract the section for this version from CHANGELOG.md - # Matches from "## [x.y.z]" until the next "## [" or end of file - NOTES=$(awk -v ver="$VERSION" ' - BEGIN { found=0 } - /^## \[/ { - if (found) exit - if (index($0, "[" ver "]")) { found=1; next } - } - found { print } - ' CHANGELOG.md) - - if [ -z "$NOTES" ]; then - echo "Warning: No changelog entry found for version $VERSION" - NOTES="Release $VERSION" - fi - - # Write to file to avoid delimiter issues - echo "$NOTES" > release_notes.md - - - name: Create GitHub Release - env: - GH_TOKEN: ${{ github.token }} - run: | - gh release create "${{ github.ref_name }}" \ - --title "${{ github.ref_name }}" \ - --notes-file release_notes.md \ - release_assets/*.elf + app_ref_name: ${{ github.ref_name }} diff --git a/CHANGELOG.md b/CHANGELOG.md index 28e5494855..b940e34569 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/). +## [1.22.2](../../compare/1.22.1...1.22.2) - 2026-08-12 + +### Fixed + +- Security issues + ## [1.22.1](../../compare/1.22.0...1.22.1) - 2026-05-27 ### Fixed diff --git a/Makefile b/Makefile index 39d95be8ff..26664035ae 100644 --- a/Makefile +++ b/Makefile @@ -37,7 +37,7 @@ include ./makefile_conf/chain/$(CHAIN).mk APPVERSION_M = 1 APPVERSION_N = 22 -APPVERSION_P = 1 +APPVERSION_P = 2 APPVERSION = $(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P) # Application source files diff --git a/icons/nanox_app_chain_78.gif b/icons/nanox_app_chain_78.gif index 0471883387..d3221ce661 100644 Binary files a/icons/nanox_app_chain_78.gif and b/icons/nanox_app_chain_78.gif differ diff --git a/src/features/generic_tx_parser/cmd_field.c b/src/features/generic_tx_parser/cmd_field.c index 66ef120f39..067cef8866 100644 --- a/src/features/generic_tx_parser/cmd_field.c +++ b/src/features/generic_tx_parser/cmd_field.c @@ -6,6 +6,7 @@ #include "cmd_tx_info.h" #include "gtp_tx_info.h" #include "tx_ctx.h" +#include "app_mem_utils.h" static bool handle_tlv_payload(const buffer_t *buf) { s_field field = {0}; @@ -17,19 +18,35 @@ static bool handle_tlv_payload(const buffer_t *buf) { cleanup_field_constraints(&field); return false; } - if (cx_hash_no_throw(get_fields_hash_ctx(), 0, buf->ptr, buf->size, NULL, 0) != CX_OK) { - PRINTF("Error: could not hash the field struct!\n"); + if (!verify_field_struct(&ctx)) { + PRINTF("Error: could not verify the field struct!\n"); cleanup_field_constraints(&field); return false; } - if (!verify_field_struct(&ctx)) { - PRINTF("Error: could not verify the field struct!\n"); + // Hash before format_field so validate_instruction_hash() inside + // add_to_field_table() sees the updated digest and sets end_intent on the + // last field of a batch sub-transaction (drives the NBGL page-break). + // + // Finding 907: rollback the hash if format_field() rejects the field so the + // rejected data leaves no trace in the signed digest. + cx_sha3_t *hash_ctx_backup; + if (APP_MEM_CALLOC((void **) &hash_ctx_backup, sizeof(*hash_ctx_backup)) == false) { + cleanup_field_constraints(&field); + return false; + } + memcpy(hash_ctx_backup, get_fields_hash_ctx(), sizeof(*hash_ctx_backup)); + if (cx_hash_no_throw(get_fields_hash_ctx(), 0, buf->ptr, buf->size, NULL, 0) != CX_OK) { + PRINTF("Error: could not hash the field struct!\n"); + APP_MEM_FREE(hash_ctx_backup); cleanup_field_constraints(&field); return false; } if (!format_field(&field)) { + memcpy(get_fields_hash_ctx(), hash_ctx_backup, sizeof(*hash_ctx_backup)); + APP_MEM_FREE(hash_ctx_backup); return false; } + APP_MEM_FREE(hash_ctx_backup); while (((appState == APP_STATE_SIGNING_EIP712) || !tx_ctx_is_root()) && validate_instruction_hash()) { if (!process_empty_txs_after()) { @@ -48,8 +65,11 @@ uint16_t handle_field(uint8_t p1, uint8_t p2, uint8_t lc, const uint8_t *payload } if (get_current_tx_info() == NULL) { + // Do NOT call gcs_cleanup() here: if a GCS review is currently shown, + // gcs_cleanup() frees g_pairs/g_pairsList while NBGL still holds + // pointers to them, causing a crash. + // Cleanup is handled in the approve/reject callbacks and in reset_app_context(). PRINTF("Error: Field received without a TX info!\n"); - gcs_cleanup(); return SWO_COMMAND_NOT_ALLOWED; } diff --git a/src/features/generic_tx_parser/gtp_param_raw.c b/src/features/generic_tx_parser/gtp_param_raw.c index f3790895df..b58d400a1a 100644 --- a/src/features/generic_tx_parser/gtp_param_raw.c +++ b/src/features/generic_tx_parser/gtp_param_raw.c @@ -271,7 +271,18 @@ static bool format_string(const s_value *def, char *buf, size_t buf_size) { (void) def; - str_cpy_explicit_trunc((char *) value->ptr, value->length, buf, buf_size); + if (value->length + 1 > buf_size) { + PRINTF("RAW STRING value too long for display (%u > %u bytes)\n", + (unsigned) value->length + 1, + (unsigned) buf_size); + return false; + } + if (memchr(value->ptr, '\0', value->length) != NULL) { + PRINTF("RAW STRING value contains embedded NUL\n"); + return false; + } + memmove(buf, value->ptr, value->length); + buf[value->length] = '\0'; return true; } diff --git a/src/features/get_eth2_public_key/cmd_get_eth2_public_key.c b/src/features/get_eth2_public_key/cmd_get_eth2_public_key.c index c4f9a810a9..d53c1da977 100644 --- a/src/features/get_eth2_public_key/cmd_get_eth2_public_key.c +++ b/src/features/get_eth2_public_key/cmd_get_eth2_public_key.c @@ -69,7 +69,9 @@ uint16_t handle_get_eth2_public_key(uint8_t p1, cx_err_t error = CX_INTERNAL_ERROR; if (!G_called_from_swap) { - reset_app_context(); + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } } if ((p1 != P1_CONFIRM) && (p1 != P1_NON_CONFIRM)) { return SWO_WRONG_P1_P2; @@ -90,6 +92,7 @@ uint16_t handle_get_eth2_public_key(uint8_t p1, *tx = set_result_get_eth2_publicKey(); return SWO_SUCCESS; } + appState = APP_STATE_VERIFYING_ADDRESS; ui_display_public_eth2(); *flags |= IO_ASYNCH_REPLY; // Return code will be sent after UI approve/cancel diff --git a/src/features/get_public_key/cmd_get_public_key.c b/src/features/get_public_key/cmd_get_public_key.c index 1e8a6ddaa2..85c4ada28a 100644 --- a/src/features/get_public_key/cmd_get_public_key.c +++ b/src/features/get_public_key/cmd_get_public_key.c @@ -16,7 +16,9 @@ uint16_t handle_get_public_key(uint8_t p1, cx_err_t error = CX_INTERNAL_ERROR; if (!G_called_from_swap) { - reset_app_context(); + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } } if ((p1 != P1_CONFIRM) && (p1 != P1_NON_CONFIRM)) { @@ -63,6 +65,7 @@ uint16_t handle_get_public_key(uint8_t p1, "0x%.*s", 40, tmpCtx.publicKeyContext.address); + appState = APP_STATE_VERIFYING_ADDRESS; // don't unnecessarily pass the current app's chain ID ui_display_public_key(chainConfig->chainId == chain_id ? NULL : &chain_id); *flags |= IO_ASYNCH_REPLY; diff --git a/src/features/get_public_key/ui_common_get_public_key.c b/src/features/get_public_key/ui_common_get_public_key.c index 0ceea1bb0e..71515a26cb 100644 --- a/src/features/get_public_key/ui_common_get_public_key.c +++ b/src/features/get_public_key/ui_common_get_public_key.c @@ -3,6 +3,9 @@ #include "ui_callbacks.h" unsigned int io_seproxyhal_touch_address_ok(void) { + if (appState != APP_STATE_VERIFYING_ADDRESS) { + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + } uint32_t tx = set_result_get_publicKey(); return io_seproxyhal_send_status(SWO_SUCCESS, tx, true, false); } diff --git a/src/features/perform_privacy_operation/cmd_perform_privacy_operation.c b/src/features/perform_privacy_operation/cmd_perform_privacy_operation.c index 954de1aafb..c70a855229 100644 --- a/src/features/perform_privacy_operation/cmd_perform_privacy_operation.c +++ b/src/features/perform_privacy_operation/cmd_perform_privacy_operation.c @@ -35,6 +35,10 @@ uint16_t handle_perform_privacy_operation(uint8_t p1, bip32_path_t bip32; cx_err_t error = CX_INTERNAL_ERROR; + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } + if ((p1 != P1_CONFIRM) && (p1 != P1_NON_CONFIRM)) { return SWO_WRONG_P1_P2; } @@ -102,6 +106,7 @@ uint16_t handle_perform_privacy_operation(uint8_t p1, strings.common.fullAmount, sizeof(strings.common.fullAmount) - 1); + appState = APP_STATE_PERFORMING_PRIVACY_OP; if (p2 == P2_PUBLIC_ENCRYPTION_KEY) { ui_display_privacy_public_key(); } else { diff --git a/src/features/perform_privacy_operation/ui_common_perform_privacy_operation.c b/src/features/perform_privacy_operation/ui_common_perform_privacy_operation.c index 7fd359acef..472340cb4c 100644 --- a/src/features/perform_privacy_operation/ui_common_perform_privacy_operation.c +++ b/src/features/perform_privacy_operation/ui_common_perform_privacy_operation.c @@ -3,6 +3,9 @@ #include "feature_perform_privacy_operation.h" unsigned int io_seproxyhal_touch_privacy_ok(void) { + if (appState != APP_STATE_PERFORMING_PRIVACY_OP) { + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + } uint32_t tx = set_result_perform_privacy_operation(); return io_seproxyhal_send_status(SWO_SUCCESS, tx, true, true); } diff --git a/src/features/provide_gating/cmd_get_gating.c b/src/features/provide_gating/cmd_get_gating.c index da113b1752..c48692ba8b 100644 --- a/src/features/provide_gating/cmd_get_gating.c +++ b/src/features/provide_gating/cmd_get_gating.c @@ -400,6 +400,16 @@ static bool handle_tlv_payload(const buffer_t *buf) { uint16_t handle_gating(uint8_t p1, uint8_t p2, const uint8_t *data, uint8_t length) { uint16_t sw = SWO_PARAMETER_ERROR_NO_INFO; + switch (appState) { + case APP_STATE_IDLE: + case APP_STATE_SIGNING_TX: + case APP_STATE_SIGNING_EIP712: + case APP_STATE_PREPARING_EIP712: + break; + default: + return SWO_COMMAND_NOT_ALLOWED; + } + switch (p2) { case 0x00: if (!tlv_from_apdu(p1 == P1_FIRST_CHUNK, length, data, &handle_tlv_payload)) { diff --git a/src/features/provide_tx_simulation/cmd_get_tx_simulation.c b/src/features/provide_tx_simulation/cmd_get_tx_simulation.c index 2f06a6ba60..8188a2877e 100644 --- a/src/features/provide_tx_simulation/cmd_get_tx_simulation.c +++ b/src/features/provide_tx_simulation/cmd_get_tx_simulation.c @@ -470,6 +470,15 @@ uint16_t handle_tx_simulation(uint8_t p1, sw = SWO_COMMAND_CODE_NOT_SUPPORTED; break; } + // Reject a second provisioning to prevent the host from overwriting + // the displayed warning after the review is on screen (finding 195). + // On master, tx_hash is zeroed by clear_tx_simulation() and set + // non-zero only after a successful TLV parse, so non-zero means received. + if (allzeroes((void *) TX_SIMULATION.tx_hash, HASH_SIZE) == 0) { + PRINTF("Error: TX simulation already received!\n"); + sw = SWO_COMMAND_NOT_ALLOWED; + break; + } if (!tlv_from_apdu(p2 == P1_FIRST_CHUNK, length, data, &handle_tlv_payload)) { sw = SWO_INCORRECT_DATA; } else { @@ -477,7 +486,12 @@ uint16_t handle_tx_simulation(uint8_t p1, } break; case 0x01: - // TX Simulation Opt-In + // TX Simulation Opt-In: drawing a new screen while a review is on + // screen would overlay the live review (finding 199). + if (appState != APP_STATE_IDLE) { + sw = SWO_COMMAND_NOT_ALLOWED; + break; + } handle_tx_simulation_opt_in(true); *flags |= IO_ASYNCH_REPLY; sw = APDU_NO_RESPONSE; diff --git a/src/features/set_external_plugin/cmd_set_external_plugin.c b/src/features/set_external_plugin/cmd_set_external_plugin.c index 94cbe0a998..164c4151eb 100644 --- a/src/features/set_external_plugin/cmd_set_external_plugin.c +++ b/src/features/set_external_plugin/cmd_set_external_plugin.c @@ -7,6 +7,12 @@ uint16_t handle_set_external_plugin(const uint8_t *workBuffer, uint8_t dataLength) { PRINTF("Handling set Plugin\n"); + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } + if (dataLength < 1) { + return SWO_INCORRECT_DATA; + } uint8_t hash[INT256_LENGTH]; uint8_t pluginNameLength = *workBuffer; uint32_t params[2]; diff --git a/src/features/set_plugin/cmd_set_plugin.c b/src/features/set_plugin/cmd_set_plugin.c index 8f49375e7d..efaefe6a3a 100644 --- a/src/features/set_plugin/cmd_set_plugin.c +++ b/src/features/set_plugin/cmd_set_plugin.c @@ -68,6 +68,9 @@ void set_swap_with_calldata_plugin_type(void) { uint16_t handle_set_plugin(const uint8_t *workBuffer, uint8_t dataLength) { PRINTF("Handling set Plugin\n"); + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } uint8_t hash[INT256_LENGTH] = {0}; tokenContext_t *tokenContext = &dataContext.tokenContext; size_t offset = 0; diff --git a/src/features/sign_authorization_eip7702/commands_7702.c b/src/features/sign_authorization_eip7702/commands_7702.c index 3117f15197..f838d2d47a 100644 --- a/src/features/sign_authorization_eip7702/commands_7702.c +++ b/src/features/sign_authorization_eip7702/commands_7702.c @@ -196,8 +196,16 @@ uint16_t handle_sign_eip7702_authorization(uint8_t p1, } } if (!tlv_from_apdu(p1 == P1_FIRST_CHUNK, dataLength, dataBuffer, &handle_auth7702_tlv)) { + if (g_7702_sw == SWO_COMMAND_NOT_ALLOWED) { + // An error screen is already displayed; only reset the state so + // subsequent APDUs are accepted, the UI callback handles idle. + appState = APP_STATE_IDLE; + } else { + reset_app_context(); + } return g_7702_sw; } + appState = APP_STATE_SIGNING_EIP7702; *flags |= IO_ASYNCH_REPLY; return APDU_NO_RESPONSE; } diff --git a/src/features/sign_authorization_eip7702/ui_common_7702.c b/src/features/sign_authorization_eip7702/ui_common_7702.c index c345c7aea3..6d42dea0b2 100644 --- a/src/features/sign_authorization_eip7702/ui_common_7702.c +++ b/src/features/sign_authorization_eip7702/ui_common_7702.c @@ -5,6 +5,9 @@ #include "crypto_helpers.h" unsigned int auth_7702_ok_cb(void) { + if (appState != APP_STATE_SIGNING_EIP7702) { + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + } uint32_t info = 0; CX_ASSERT(bip32_derive_ecdsa_sign_rs_hash_256(CX_CURVE_256K1, tmpCtx.authSigningContext7702.bip32.path, @@ -21,9 +24,9 @@ unsigned int auth_7702_ok_cb(void) { } else { G_io_tx_buffer[0] = 0; } - return io_seproxyhal_send_status(SWO_SUCCESS, ECDSA_SIGNATURE_LENGTH, false, true); + return io_seproxyhal_send_status(SWO_SUCCESS, ECDSA_SIGNATURE_LENGTH, true, false); } unsigned int auth_7702_cancel_cb(void) { - return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, true); + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); } diff --git a/src/features/sign_message/cmd_sign_message.c b/src/features/sign_message/cmd_sign_message.c index 55c5d15503..adaa6b9f03 100644 --- a/src/features/sign_message/cmd_sign_message.c +++ b/src/features/sign_message/cmd_sign_message.c @@ -27,7 +27,6 @@ static const char SIGN_MAGIC[] = */ static void set_idle(void) { message_cleanup(); - APP_MEM_FREE_AND_NULL((void **) &g_msg_hash_ctx); ui_idle(); } @@ -232,7 +231,6 @@ uint16_t handle_sign_personal_message(uint8_t p1, if (p1 == P1_FIRST) { // Check if the app is in idle state if (appState != APP_STATE_IDLE) { - set_idle(); return SWO_COMMAND_NOT_ALLOWED; } appState = APP_STATE_SIGNING_MESSAGE; @@ -295,4 +293,5 @@ void message_cleanup(void) { APP_MEM_FREE_AND_NULL((void **) &signMsgCtx->display_buffer); } APP_MEM_FREE_AND_NULL((void **) &signMsgCtx); + APP_MEM_FREE_AND_NULL((void **) &g_msg_hash_ctx); } diff --git a/src/features/sign_message/ui_common_sign_message.c b/src/features/sign_message/ui_common_sign_message.c index 6c8599f912..75f0229229 100644 --- a/src/features/sign_message/ui_common_sign_message.c +++ b/src/features/sign_message/ui_common_sign_message.c @@ -4,6 +4,9 @@ #include "ui_callbacks.h" unsigned int io_seproxyhal_touch_signMessage_ok(void) { + if (appState != APP_STATE_SIGNING_MESSAGE) { + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + } unsigned int info = 0; CX_ASSERT(bip32_derive_ecdsa_sign_rs_hash_256(CX_CURVE_256K1, tmpCtx.messageSigningContext.bip32.path, diff --git a/src/features/sign_message_eip712/commands_712.c b/src/features/sign_message_eip712/commands_712.c index 3f2f39d33b..0330d8a62f 100644 --- a/src/features/sign_message_eip712/commands_712.c +++ b/src/features/sign_message_eip712/commands_712.c @@ -89,6 +89,9 @@ uint16_t handle_eip712_struct_def(uint8_t p2, const uint8_t *cdata, uint8_t leng bool ret = true; if (eip712_context == NULL) { + if (appState != APP_STATE_IDLE) { + return SWO_COMMAND_NOT_ALLOWED; + } ret = eip712_context_init(); } if (struct_state == DEFINED) { diff --git a/src/features/sign_message_eip712/path.c b/src/features/sign_message_eip712/path.c index fab5598220..059262a601 100644 --- a/src/features/sign_message_eip712/path.c +++ b/src/features/sign_message_eip712/path.c @@ -638,7 +638,6 @@ bool path_new_array_depth(const uint8_t *data, uint8_t length) { */ static bool path_advance_in_struct(void) { bool end_reached = true; - uint8_t *depth = &path_struct->depths[path_struct->depth_count - 1]; uint8_t fields_count; if (path_struct == NULL) { @@ -648,6 +647,7 @@ static bool path_advance_in_struct(void) { return false; } if (path_struct->depth_count > 0) { + uint8_t *depth = &path_struct->depths[path_struct->depth_count - 1]; *depth += 1; end_reached = (*depth == fields_count); } diff --git a/src/features/sign_message_eip712_common/common_712.c b/src/features/sign_message_eip712_common/common_712.c index 65689cdbcb..78fbe0c7e6 100644 --- a/src/features/sign_message_eip712_common/common_712.c +++ b/src/features/sign_message_eip712_common/common_712.c @@ -11,6 +11,10 @@ static const uint8_t EIP_712_MAGIC[] = {0x19, 0x01}; void ui_712_approve_cb(void) { + if (appState != APP_STATE_SIGNING_EIP712) { + io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + return; + } uint8_t hash[INT256_LENGTH]; io_seproxyhal_io_heartbeat(); @@ -90,7 +94,7 @@ void eip712_format_hash(uint8_t index) { * @return status code indicating success or failure */ uint16_t ui_712_start(e_eip712_filtering_mode filtering) { - if (appState != APP_STATE_IDLE) { + if (appState != APP_STATE_IDLE && appState != APP_STATE_PREPARING_EIP712) { reset_app_context(); } appState = APP_STATE_SIGNING_EIP712; diff --git a/src/features/sign_message_eip712_v0/cmd_sign_message_eip712.c b/src/features/sign_message_eip712_v0/cmd_sign_message_eip712.c index dcce422ec3..c731cc3c58 100644 --- a/src/features/sign_message_eip712_v0/cmd_sign_message_eip712.c +++ b/src/features/sign_message_eip712_v0/cmd_sign_message_eip712.c @@ -13,7 +13,7 @@ uint16_t handle_sign_eip712_message_v0(uint8_t p1, return SWO_WRONG_P1_P2; } if (appState != APP_STATE_IDLE) { - reset_app_context(); + return SWO_COMMAND_NOT_ALLOWED; } if (!N_storage.dataAllowed) { diff --git a/src/features/sign_tx/cmd_sign_tx.c b/src/features/sign_tx/cmd_sign_tx.c index 7f08d20d5c..7c88b613d9 100644 --- a/src/features/sign_tx/cmd_sign_tx.c +++ b/src/features/sign_tx/cmd_sign_tx.c @@ -26,9 +26,10 @@ static uint16_t handle_first_sign_chunk(const uint8_t *payload, uint8_t tx_type; if (appState != APP_STATE_IDLE) { - reset_app_context(); + return SWO_COMMAND_NOT_ALLOWED; } appState = APP_STATE_SIGNING_TX; + tmpCtx.transactionContext.sign_mode = (uint8_t) mode; if (parseBip32(&payload[*offset], &length_tmp, &tmpCtx.transactionContext.bip32) == NULL) { return SWO_INCORRECT_DATA; @@ -132,6 +133,10 @@ uint16_t handle_sign(uint8_t p1, PRINTF("Signature not initialized\n"); return SWO_COMMAND_NOT_ALLOWED; } + if (p2 != (e_sign_mode) tmpCtx.transactionContext.sign_mode) { + PRINTF("P2 mismatch on continuation chunk\n"); + return SWO_WRONG_P1_P2; + } break; default: return SWO_WRONG_P1_P2; @@ -175,7 +180,7 @@ uint16_t handle_sign(uint8_t p1, } parserStatus_e pstatus = process_tx(&txContext, &payload[offset], length - offset); sw = handle_parsing_status(pstatus); - if (p2 == SIGN_MODE_BASIC) { + if ((e_sign_mode) tmpCtx.transactionContext.sign_mode == SIGN_MODE_BASIC) { if ((pstatus == USTREAM_FINISHED) && (sw == SWO_SUCCESS)) { // don't respond now, will be done after review sw = APDU_NO_RESPONSE; diff --git a/src/features/sign_tx/logic_sign_tx.c b/src/features/sign_tx/logic_sign_tx.c index 9ee113bb9b..1c2d070f62 100644 --- a/src/features/sign_tx/logic_sign_tx.c +++ b/src/features/sign_tx/logic_sign_tx.c @@ -97,6 +97,9 @@ customStatus_e custom_processor(txContext_t *context) { if (!N_storage.dataAllowed) { PRINTF("Data field forbidden\n"); ui_error_blind_signing(); + // An error screen is already displayed; only reset the state + // so the main loop's error handling does not overwrite it + appState = APP_STATE_IDLE; return CUSTOM_FAULT; } } diff --git a/src/features/sign_tx/ui_common_sign_tx.c b/src/features/sign_tx/ui_common_sign_tx.c index ba7f9ae371..901ad5ce72 100644 --- a/src/features/sign_tx/ui_common_sign_tx.c +++ b/src/features/sign_tx/ui_common_sign_tx.c @@ -6,6 +6,9 @@ #include "ui_callbacks.h" uint32_t io_seproxyhal_touch_tx_ok(void) { + if (appState != APP_STATE_SIGNING_TX) { + return io_seproxyhal_send_status(SWO_CONDITIONS_NOT_SATISFIED, 0, true, false); + } uint32_t info = 0; int err = 0; CX_ASSERT(bip32_derive_ecdsa_sign_rs_hash_256(CX_CURVE_256K1, diff --git a/src/main.c b/src/main.c index ea0f9dfc4a..48abdc786b 100644 --- a/src/main.c +++ b/src/main.c @@ -80,7 +80,6 @@ void reset_app_context(void) { if (appState == APP_STATE_SIGNING_MESSAGE) { message_cleanup(); } - appState = APP_STATE_IDLE; G_called_from_swap = false; G_swap_response_ready = false; G_swap_checked = false; @@ -98,11 +97,15 @@ void reset_app_context(void) { memset((uint8_t *) &txContext, 0, sizeof(txContext)); memset((uint8_t *) &tmpContent, 0, sizeof(tmpContent)); clear_safe_account(); +#ifdef HAVE_TRANSACTION_CHECKS + clear_tx_simulation(); +#endif ui_all_cleanup(); proxy_cleanup(); #ifdef HAVE_GATING_SUPPORT clear_gating(); #endif + appState = APP_STATE_IDLE; } void app_quit(void) { @@ -357,6 +360,10 @@ void app_main(void) { // Internal error sw = SWO_NOT_SUPPORTED_ERROR_NO_INFO | (sw & 0x7FF); } + if (appState != APP_STATE_IDLE) { + // Dismiss any ongoing review before its UI buffers are freed + ui_idle(); + } reset_app_context(); flags &= ~IO_ASYNCH_REPLY; } diff --git a/src/nbgl/ui_nbgl.h b/src/nbgl/ui_nbgl.h index d798ba5896..ff8a8edcc5 100644 --- a/src/nbgl/ui_nbgl.h +++ b/src/nbgl/ui_nbgl.h @@ -1,12 +1,13 @@ #pragma once #include "nbgl_use_case.h" +#include "nbgl_icons.h" #include "shared_context.h" #ifdef SCREEN_SIZE_WALLET #define ICON_APP_WARNING LARGE_WARNING_ICON #define ICON_APP_REVIEW LARGE_REVIEW_ICON -#define ICON_APP_MULTISIG C_multisig_64px +#define ICON_APP_MULTISIG LARGE_MULTISIG_ICON #if defined(TARGET_APEX) #define ICON_LEDGER C_ledger_48px #else diff --git a/src/nbgl/ui_safe_account.c b/src/nbgl/ui_safe_account.c index 714ebe6457..9b5f4825f6 100644 --- a/src/nbgl/ui_safe_account.c +++ b/src/nbgl/ui_safe_account.c @@ -27,6 +27,8 @@ static tag_value_collection_t *signersInfo = NULL; static nbgl_contentValueExt_t *extensions = NULL; static nbgl_contentTagValue_t *tagValuePairs = NULL; static nbgl_contentTagValueList_t *tagValueList = NULL; +static char *s_safe_addr_str = NULL; +static char *s_threshold_str = NULL; /** * @brief Cleanup the memory buffers and reset the Safe Account state. @@ -38,6 +40,8 @@ static void _cleanup(uint16_t sw) { APP_MEM_FREE_AND_NULL((void **) &extensions); APP_MEM_FREE_AND_NULL((void **) &tagValuePairs); APP_MEM_FREE_AND_NULL((void **) &tagValueList); + APP_MEM_FREE_AND_NULL((void **) &s_safe_addr_str); + APP_MEM_FREE_AND_NULL((void **) &s_threshold_str); if (signersInfo != NULL) { APP_MEM_FREE_AND_NULL((void **) &signersInfo->tags.buffer); APP_MEM_FREE_AND_NULL((void **) &signersInfo->tags.pointers); @@ -101,7 +105,12 @@ static bool _prepare_memory(void) { if (APP_MEM_CALLOC((void **) &signersInfo->values.buffer, totalSize) == false) { return false; } - explicit_bzero((void *) &strings, sizeof(strings_t)); + if (APP_MEM_CALLOC((void **) &s_safe_addr_str, ADDRESS_LENGTH_HEX_STR) == false) { + return false; + } + if (APP_MEM_CALLOC((void **) &s_threshold_str, 32) == false) { + return false; + } return true; } @@ -113,12 +122,8 @@ static void _prepare_strings(void) { uint16_t i = 0; char *ptr = NULL; // Prepare the strings for display - array_bytes_string(strings.tmp.tmp, ADDRESS_LENGTH_HEX_STR, SAFE_DESC->address, ADDRESS_LENGTH); - snprintf(strings.tmp.tmp + ADDRESS_LENGTH_HEX_STR, - sizeof(strings.tmp.tmp) - ADDRESS_LENGTH_HEX_STR, - "%d out of %d", - SAFE_DESC->threshold, - SAFE_DESC->signers_count); + array_bytes_string(s_safe_addr_str, ADDRESS_LENGTH_HEX_STR, SAFE_DESC->address, ADDRESS_LENGTH); + snprintf(s_threshold_str, 32, "%d out of %d", SAFE_DESC->threshold, SAFE_DESC->signers_count); // Prepare the signers information // Populate tag strings ptr = signersInfo->tags.buffer; @@ -153,7 +158,7 @@ static void setTagValuePairs(void) { nbPairs++; g_pairs[nbPairs].item = "Threshold"; - g_pairs[nbPairs].value = strings.tmp.tmp + ADDRESS_LENGTH_HEX_STR; + g_pairs[nbPairs].value = s_threshold_str; g_pairs[nbPairs].aliasValue = true; g_pairs[nbPairs].extension = &extensions[1]; extensions[1].aliasType = TAG_VALUE_LIST_ALIAS; @@ -207,7 +212,7 @@ void ui_display_safe_account(void) { setTagValuePairs(); #ifndef FUZZ - nbgl_useCaseAddressReview(strings.tmp.tmp, + nbgl_useCaseAddressReview(s_safe_addr_str, g_pairsList, &ICON_APP_MULTISIG, "Verify Safe address", diff --git a/src/plugins/eip7002/eip7002_plugin.c b/src/plugins/eip7002/eip7002_plugin.c index 50b67565a0..8391351f3d 100644 --- a/src/plugins/eip7002/eip7002_plugin.c +++ b/src/plugins/eip7002/eip7002_plugin.c @@ -65,6 +65,11 @@ static void eip7002_plugin_provider_parameter(ethPluginProvideParameter_t *param static void eip7002_plugin_finalize(ethPluginFinalize_t *param) { eip7002_context_t *context = (eip7002_context_t *) param->pluginContext; + if (get_tx_chain_id() != ETHEREUM_MAINNET_CHAINID) { + PRINTF("eip7002: withdrawal predeploy only valid on Ethereum mainnet\n"); + param->result = ETH_PLUGIN_RESULT_ERROR; + return; + } param->uiType = ETH_UI_TYPE_GENERIC; param->numScreens = allzeroes(context->raw_amount, sizeof(context->raw_amount)) ? 1 : 2; param->result = (context->received == sizeof(context->withdrawal_request)) diff --git a/src/plugins/eip7251/eip7251_plugin.c b/src/plugins/eip7251/eip7251_plugin.c index 7c4a8d8700..52672e841f 100644 --- a/src/plugins/eip7251/eip7251_plugin.c +++ b/src/plugins/eip7251/eip7251_plugin.c @@ -67,6 +67,11 @@ static void eip7251_plugin_provider_parameter(ethPluginProvideParameter_t *param static void eip7251_plugin_finalize(ethPluginFinalize_t *param) { eip7251_context_t *context = (eip7251_context_t *) param->pluginContext; + if (get_tx_chain_id() != ETHEREUM_MAINNET_CHAINID) { + PRINTF("eip7251: consolidation predeploy only valid on Ethereum mainnet\n"); + param->result = ETH_PLUGIN_RESULT_ERROR; + return; + } param->uiType = ETH_UI_TYPE_GENERIC; param->numScreens = target_equals_source(context) ? 1 : 2; param->result = (context->received == sizeof(context->consolidation_request)) diff --git a/src/plugins/erc1155/erc1155_plugin.c b/src/plugins/erc1155/erc1155_plugin.c index 875c2b1f95..a3d5a68ec5 100644 --- a/src/plugins/erc1155/erc1155_plugin.c +++ b/src/plugins/erc1155/erc1155_plugin.c @@ -17,6 +17,7 @@ static const uint8_t *const ERC1155_SELECTORS[] = { void handle_init_contract_1155(ethPluginInitContract_t *msg) { erc1155_context_t *context = (erc1155_context_t *) msg->pluginContext; + explicit_bzero(context, sizeof(*context)); if (NO_NFT_METADATA) { PRINTF("No NFT metadata when trying to sign!\n"); diff --git a/src/plugins/erc1155/erc1155_plugin.h b/src/plugins/erc1155/erc1155_plugin.h index 48da325d42..ea738fd85b 100644 --- a/src/plugins/erc1155/erc1155_plugin.h +++ b/src/plugins/erc1155/erc1155_plugin.h @@ -8,6 +8,16 @@ // Internal plugin for EIP 1155: https://eips.ethereum.org/EIPS/eip-1155 +// Maximum number of (id, value) pairs surfaced individually during a +// safeBatchTransferFrom review. Anything beyond this is reported via the +// aggregate quantity screen plus a truncation warning so the user is told +// the on-device view is incomplete. +#define ERC1155_BATCH_DISPLAY_MAX 3 +// Ensure the FINALIZE screen count (4 base + 2 per pair + 1 truncation) fits +// in numScreens (uint8_t). Increase ERC1155_BATCH_DISPLAY_MAX with care. +_Static_assert(4 + 2 * ERC1155_BATCH_DISPLAY_MAX + 1 <= 255, + "ERC1155 batch screen count overflows numScreens (uint8_t)"); + typedef struct erc1155_context_t { uint8_t address[ADDRESS_LENGTH]; uint8_t tokenId[INT256_LENGTH]; @@ -19,6 +29,11 @@ typedef struct erc1155_context_t { uint32_t values_offset; uint16_t array_index; + uint8_t batch_ids[ERC1155_BATCH_DISPLAY_MAX][INT256_LENGTH]; + uint8_t batch_values[ERC1155_BATCH_DISPLAY_MAX][INT256_LENGTH]; + uint8_t batch_displayed; + bool batch_truncated; + bool approved; uint8_t next_param; uint8_t selectorIndex; diff --git a/src/plugins/erc1155/erc1155_provide_parameters.c b/src/plugins/erc1155/erc1155_provide_parameters.c index 754c64ab24..557a2f1020 100644 --- a/src/plugins/erc1155/erc1155_provide_parameters.c +++ b/src/plugins/erc1155/erc1155_provide_parameters.c @@ -53,13 +53,23 @@ static void handle_batch_transfer(ethPluginProvideParameter_t *msg, erc1155_cont context->next_param = TOKEN_IDS_LENGTH; break; case TOKEN_IDS_LENGTH: - if ((msg->parameterOffset + PARAMETER_LENGTH) > context->ids_offset) { - context->ids_array_len = - U2BE(msg->parameter, PARAMETER_LENGTH - sizeof(context->ids_array_len)); - context->next_param = TOKEN_ID; - // set to zero for next step - context->array_index = 0; + if (msg->parameterOffset < context->ids_offset) { + // not there yet + break; } + if (msg->parameterOffset != context->ids_offset) { + msg->result = ETH_PLUGIN_RESULT_ERROR; + break; + } + context->ids_array_len = + U2BE(msg->parameter, PARAMETER_LENGTH - sizeof(context->ids_array_len)); + context->batch_displayed = (context->ids_array_len > ERC1155_BATCH_DISPLAY_MAX) + ? ERC1155_BATCH_DISPLAY_MAX + : (uint8_t) context->ids_array_len; + context->batch_truncated = context->ids_array_len > ERC1155_BATCH_DISPLAY_MAX; + context->next_param = (context->ids_array_len == 0) ? VALUE_LENGTH : TOKEN_ID; + // set to zero for next step + context->array_index = 0; break; case TOKEN_ID: // don't copy anything since we won't display it @@ -69,17 +79,23 @@ static void handle_batch_transfer(ethPluginProvideParameter_t *msg, erc1155_cont context->array_index++; break; case VALUE_LENGTH: - if ((msg->parameterOffset + PARAMETER_LENGTH) > context->values_offset) { - context->values_array_len = - U2BE(msg->parameter, PARAMETER_LENGTH - sizeof(context->values_array_len)); - if (context->values_array_len != context->array_index) { - PRINTF("Token ids and values array sizes mismatch!"); - } - context->next_param = VALUE; - // set to zero for next step - context->array_index = 0; - explicit_bzero(&context->value, sizeof(context->value)); + if (msg->parameterOffset < context->values_offset) { + // not there yet + break; + } + if (msg->parameterOffset != context->values_offset) { + msg->result = ETH_PLUGIN_RESULT_ERROR; + break; } + context->values_array_len = + U2BE(msg->parameter, PARAMETER_LENGTH - sizeof(context->values_array_len)); + if (context->values_array_len != context->array_index) { + PRINTF("Token ids and values array sizes mismatch!"); + } + context->next_param = VALUE; + // set to zero for next step + context->array_index = 0; + explicit_bzero(&context->value, sizeof(context->value)); break; case VALUE: // put it temporarily in token id since we don't use it in batch transfer diff --git a/src/plugins/erc721/erc721_plugin.c b/src/plugins/erc721/erc721_plugin.c index 5d3cd0ec3c..258e082a92 100644 --- a/src/plugins/erc721/erc721_plugin.c +++ b/src/plugins/erc721/erc721_plugin.c @@ -22,6 +22,7 @@ static const uint8_t *const ERC721_SELECTORS[] = { void handle_init_contract_721(ethPluginInitContract_t *msg) { erc721_context_t *context = (erc721_context_t *) msg->pluginContext; + explicit_bzero(context, sizeof(*context)); if (NO_NFT_METADATA) { PRINTF("No NFT metadata when trying to sign!\n"); diff --git a/src/plugins/eth2/eth2_plugin.c b/src/plugins/eth2/eth2_plugin.c index 66d70e2520..40d47d1b4b 100644 --- a/src/plugins/eth2/eth2_plugin.c +++ b/src/plugins/eth2/eth2_plugin.c @@ -5,6 +5,7 @@ #include "eth_plugin_handler.h" #include "shared_context.h" #include "common_utils.h" +#include "network.h" #include "eth2_plugin.h" #include "feature_get_eth2_public_key.h" @@ -42,6 +43,7 @@ void eth2_plugin_call(eth_plugin_msg_t message, void *parameters) { case ETH_PLUGIN_INIT_CONTRACT: { ethPluginInitContract_t *msg = (ethPluginInitContract_t *) parameters; eth2_deposit_parameters_t *context = (eth2_deposit_parameters_t *) msg->pluginContext; + explicit_bzero(context, sizeof(*context)); context->valid = 1; msg->result = ETH_PLUGIN_RESULT_OK; } break; @@ -175,6 +177,11 @@ void eth2_plugin_call(eth_plugin_msg_t message, void *parameters) { ethPluginFinalize_t *msg = (ethPluginFinalize_t *) parameters; eth2_deposit_parameters_t *context = (eth2_deposit_parameters_t *) msg->pluginContext; PRINTF("eth2 plugin finalize\n"); + if (get_tx_chain_id() != ETHEREUM_MAINNET_CHAINID) { + PRINTF("eth2: deposit contract only valid on Ethereum mainnet\n"); + msg->result = ETH_PLUGIN_RESULT_ERROR; + break; + } if (context->valid) { msg->numScreens = 2; msg->uiType = ETH_UI_TYPE_GENERIC; diff --git a/src/plugins/plugins.c b/src/plugins/plugins.c index 41cef56538..064ee4739e 100644 --- a/src/plugins/plugins.c +++ b/src/plugins/plugins.c @@ -32,8 +32,6 @@ bool plugin_ui_get_item_internal(char *title_buffer, msg_buffer_size); if (!eth_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, (void *) &pluginQueryContractUI)) { PRINTF("Plugin query contract UI call failed\n"); - reset_app_context(); - io_send_sw(SWO_INCORRECT_DATA); return false; } return true; diff --git a/src/shared_context.h b/src/shared_context.h index fac6c11c32..0ac5cb9785 100644 --- a/src/shared_context.h +++ b/src/shared_context.h @@ -84,6 +84,7 @@ typedef struct publicKeyContext_t { typedef struct transactionContext_t { bip32_path_t bip32; uint8_t hash[INT256_LENGTH]; + uint8_t sign_mode; // e_sign_mode captured at P1_FIRST, pinned for the lifetime of the flow union extraInfo_t extraInfo[MAX_ASSETS]; bool assetSet[MAX_ASSETS]; uint8_t currentAssetIndex; @@ -123,9 +124,13 @@ typedef union { typedef enum { APP_STATE_IDLE, + APP_STATE_VERIFYING_ADDRESS, + APP_STATE_PERFORMING_PRIVACY_OP, APP_STATE_SIGNING_TX, APP_STATE_SIGNING_MESSAGE, - APP_STATE_SIGNING_EIP712 + APP_STATE_PREPARING_EIP712, // STRUCT_DEF received, UI not yet started + APP_STATE_SIGNING_EIP712, + APP_STATE_SIGNING_EIP7702, } app_state_t; typedef enum { diff --git a/tests/ragger/snapshots/apex_p/test_safe_descriptor/00000.png b/tests/ragger/snapshots/apex_p/test_safe_descriptor/00000.png index 147c55bd9e..7b2db2e9b4 100644 Binary files a/tests/ragger/snapshots/apex_p/test_safe_descriptor/00000.png and b/tests/ragger/snapshots/apex_p/test_safe_descriptor/00000.png differ diff --git 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--git a/tests/ragger/snapshots/stax/test_settings/multiple3/00002.png b/tests/ragger/snapshots/stax/test_settings/multiple3/00002.png index 04c25d86b9..acf8d08f50 100644 Binary files a/tests/ragger/snapshots/stax/test_settings/multiple3/00002.png and b/tests/ragger/snapshots/stax/test_settings/multiple3/00002.png differ diff --git a/tests/ragger/snapshots/stax/test_settings/tx_checks/00002.png b/tests/ragger/snapshots/stax/test_settings/tx_checks/00002.png index 04c25d86b9..acf8d08f50 100644 Binary files a/tests/ragger/snapshots/stax/test_settings/tx_checks/00002.png and b/tests/ragger/snapshots/stax/test_settings/tx_checks/00002.png differ diff --git a/tests/ragger/snapshots/stax/test_tx_simulation_opt_in/00000.png b/tests/ragger/snapshots/stax/test_tx_simulation_opt_in/00000.png index 04c25d86b9..acf8d08f50 100644 Binary files a/tests/ragger/snapshots/stax/test_tx_simulation_opt_in/00000.png and b/tests/ragger/snapshots/stax/test_tx_simulation_opt_in/00000.png differ diff --git a/tests/unit/src/test_cmd_field_tx_info.c b/tests/unit/src/test_cmd_field_tx_info.c new file mode 100644 index 0000000000..f8a6b49647 --- /dev/null +++ b/tests/unit/src/test_cmd_field_tx_info.c @@ -0,0 +1,495 @@ +/** + * @file test_cmd_field_tx_info.c + * @brief Unit tests for the two GCS APDU command entry points at + * src/features/generic_tx_parser/cmd_field.c and + * src/features/generic_tx_parser/cmd_tx_info.c. + * + * Both commands are thin wrappers around the deeper parsing layers: + * each one gates on appState (must be SIGNING_TX or SIGNING_EIP712), + * cmd_field additionally requires that a current tx_info has been + * registered, then both delegate to tlv_from_apdu() which streams the + * TLV payload into the static handle_tlv_payload. + * + * The deep parsing path is already covered by test_tx_info / + * test_field_validation / test_tx_ctx; this slice focuses on the + * entry-point glue: status-word returns on guard failures and on + * tlv_from_apdu success / failure. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "cmd_field.h" +#include "cmd_tx_info.h" +#include "gtp_tx_info.h" +#include "gtp_field.h" +#include "tx_ctx.h" +#include "apdu_constants.h" +#include "shared_context.h" +#include "status_words.h" +#include "tlv_apdu.h" +#include "cx.h" +#include "wraps.h" + +// ============================================================================= +// Globals +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// tlv_from_apdu is the seam — control its return value per test. +// Caller treats return as a bool (`if (!tlv_from_apdu(...))`), so +// TLV_APDU_ERROR == 0 means "fail" and any non-zero (PENDING, SUCCESS) +// is "ok". +static e_tlv_apdu_ret g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; +// When true, the wrap actually invokes the handler with an empty buffer. +// Used by tests that want to exercise the static handle_tlv_payload helpers. +static bool g_field_tlv_invoke_handler = false; +static bool g_field_tlv_handler_returned = false; +e_tlv_apdu_ret __wrap_tlv_from_apdu(bool first_chunk, + uint8_t lc, + const uint8_t *payload, + f_tlv_payload_handler handler) { + (void) first_chunk; + (void) lc; + (void) payload; + if (g_field_tlv_invoke_handler && handler != NULL) { + buffer_t buf = {.ptr = NULL, .size = 0, .offset = 0}; + g_field_tlv_handler_returned = handler(&buf); + } + return g_field_tlv_from_apdu_ret; +} + +// cmd_field reads from get_current_tx_info — control it via a wrap. + +// cmd_field calls gcs_cleanup on the no-tx-info path — count calls. +static int g_gcs_cleanup_calls = 0; +void __wrap_gcs_cleanup(void) { + g_gcs_cleanup_calls++; +} + +// The static handle_tlv_payload helpers reference these symbols. Each +// has a controllable return value so the test cases below can drive +// the static helpers' branches via the wrap-invokes-handler path. +static bool g_handle_field_struct_ret = true; +static bool g_verify_field_struct_ret = true; +static bool g_format_field_ret = true; +static cx_err_t g_cx_hash_ret = CX_OK; +// validate_instruction_hash is consumed inside a `while (...)` loop in +// cmd_field's static handle_tlv_payload, so an unconditional `true` +// stub would loop forever. Drive it with a budget instead: each call +// decrements the counter; when it reaches zero the stub returns false +// and the loop exits. +static int g_validate_instruction_hash_budget = 0; +static bool g_tx_ctx_is_root_ret = true; +static bool g_process_empty_txs_after_ret = true; +static bool g_process_empty_txs_before_ret = true; +static bool g_handle_tx_info_struct_ret = true; +static bool g_verify_tx_info_struct_ret = true; +static bool g_find_matching_tx_ctx_ret = true; +static bool g_set_tx_info_into_tx_ctx_ret = true; +static int g_cleanup_field_calls = 0; +static int g_tx_ctx_pop_calls = 0; + +bool handle_field_struct(const buffer_t *buf, s_field_ctx *ctx) { + (void) buf; + (void) ctx; + return g_handle_field_struct_ret; +} +void cleanup_field(s_field *field) { + (void) field; + g_cleanup_field_calls++; +} +cx_hash_t *get_fields_hash_ctx(void) { + static cx_sha3_t dummy; + return (cx_hash_t *) &dummy; +} +cx_err_t cx_hash_no_throw(cx_hash_t *hash, + uint32_t mode, + const uint8_t *in, + size_t l, + uint8_t *out, + size_t ol) { + (void) hash; + (void) mode; + (void) in; + (void) l; + (void) out; + (void) ol; + return g_cx_hash_ret; +} +bool verify_field_struct(const s_field_ctx *ctx) { + (void) ctx; + return g_verify_field_struct_ret; +} +bool format_field(s_field *f, uint8_t depth) { + (void) f; + (void) depth; + return g_format_field_ret; +} +bool process_empty_txs_after(void) { + return g_process_empty_txs_after_ret; +} +bool process_empty_txs_before(void) { + return g_process_empty_txs_before_ret; +} +void tx_ctx_pop(void) { + g_tx_ctx_pop_calls++; +} +bool tx_ctx_is_root(void) { + return g_tx_ctx_is_root_ret; +} +bool validate_instruction_hash(void) { + if (g_validate_instruction_hash_budget > 0) { + g_validate_instruction_hash_budget--; + return true; + } + return false; +} +bool handle_tx_info_struct(const buffer_t *buf, s_tx_info_ctx *ctx) { + (void) buf; + (void) ctx; + return g_handle_tx_info_struct_ret; +} +bool verify_tx_info_struct(const s_tx_info_ctx *ctx) { + (void) ctx; + return g_verify_tx_info_struct_ret; +} +bool find_matching_tx_ctx(const uint8_t *a, const uint8_t *s, const uint64_t *c) { + (void) a; + (void) s; + (void) c; + return g_find_matching_tx_ctx_ret; +} +bool set_tx_info_into_tx_ctx(s_tx_info *info) { + (void) info; + return g_set_tx_info_into_tx_ctx_ret; +} +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; + g_field_tlv_invoke_handler = false; + g_field_tlv_handler_returned = false; + g_tx_info_ret = NULL; + g_gcs_cleanup_calls = 0; + g_handle_field_struct_ret = true; + g_verify_field_struct_ret = true; + g_format_field_ret = true; + g_cx_hash_ret = CX_OK; + g_validate_instruction_hash_budget = 0; + g_tx_ctx_is_root_ret = true; + g_process_empty_txs_after_ret = true; + g_process_empty_txs_before_ret = true; + g_handle_tx_info_struct_ret = true; + g_verify_tx_info_struct_ret = true; + g_find_matching_tx_ctx_ret = true; + g_set_tx_info_into_tx_ctx_ret = true; + g_cleanup_field_calls = 0; + g_tx_ctx_pop_calls = 0; + return 0; +} + +// ============================================================================= +// handle_field — appState guard +// ============================================================================= + +static void test_field_wrong_appstate_rejected(void **state) { + (void) state; + appState = APP_STATE_IDLE; // not SIGNING_TX / SIGNING_EIP712 + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_COMMAND_NOT_ALLOWED); +} + +static void test_field_signing_message_state_rejected(void **state) { + (void) state; + // Other signing states (MESSAGE, EIP7702) also do not allow field cmds. + appState = APP_STATE_SIGNING_MESSAGE; + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_COMMAND_NOT_ALLOWED); +} + +// ============================================================================= +// handle_field — no current tx_info +// ============================================================================= + +static void test_field_no_tx_info_triggers_cleanup(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_tx_info_ret = NULL; + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_COMMAND_NOT_ALLOWED); + // gcs_cleanup must NOT be called here: if a GCS review is on-screen, + // calling it would free buffers that NBGL still holds, causing a crash. + assert_int_equal(g_gcs_cleanup_calls, 0); +} + +// ============================================================================= +// handle_field — happy path delegates to tlv_from_apdu +// ============================================================================= + +static void test_field_tlv_failure_returns_incorrect_data(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_from_apdu_ret = TLV_APDU_ERROR; + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_INCORRECT_DATA); + // gcs_cleanup is NOT called on this path — only on the no-tx-info + // branch. + assert_int_equal(g_gcs_cleanup_calls, 0); +} + +static void test_field_tlv_success_returns_success(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); +} + +static void test_field_signing_eip712_allowed(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_EIP712; + g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); +} + +// ============================================================================= +// handle_tx_info — appState guard +// ============================================================================= + +static void test_tx_info_wrong_appstate_rejected(void **state) { + (void) state; + appState = APP_STATE_IDLE; + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_COMMAND_NOT_ALLOWED); +} + +static void test_tx_info_signing_message_state_rejected(void **state) { + (void) state; + appState = APP_STATE_SIGNING_MESSAGE; + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_COMMAND_NOT_ALLOWED); +} + +// ============================================================================= +// handle_tx_info — tlv_from_apdu paths +// ============================================================================= + +static void test_tx_info_tlv_failure_returns_incorrect_data(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_from_apdu_ret = TLV_APDU_ERROR; + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_INCORRECT_DATA); +} + +static void test_tx_info_tlv_success_returns_success(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); +} + +static void test_tx_info_eip712_signing_allowed(void **state) { + (void) state; + appState = APP_STATE_SIGNING_EIP712; + g_field_tlv_from_apdu_ret = TLV_APDU_SUCCESS; + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); +} + +// ============================================================================= +// Internal handle_tlv_payload — invoked through the wrap so we can hit +// the static helpers' branches in cmd_field.c / cmd_tx_info.c. +// ============================================================================= + +// --- cmd_field internal handler --- + +static void test_field_handler_happy_path(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_tx_ctx_is_root_ret = true; // not signing EIP-712 & at root → exit while loop + g_validate_instruction_hash_budget = 0; + + assert_int_equal(handle_field(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); + assert_true(g_field_tlv_handler_returned); + // cleanup_field is NOT called on happy path + assert_int_equal(g_cleanup_field_calls, 0); +} + +static void test_field_handler_handle_field_struct_failure(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_handle_field_struct_ret = false; + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); + // cleanup_field must be called to release any half-built state + assert_int_equal(g_cleanup_field_calls, 1); +} + +static void test_field_handler_hash_failure(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_cx_hash_ret = 0x1234; // not CX_OK + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); + assert_int_equal(g_cleanup_field_calls, 1); +} + +static void test_field_handler_verify_failure(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_verify_field_struct_ret = false; + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); + assert_int_equal(g_cleanup_field_calls, 1); +} + +static void test_field_handler_format_failure(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_format_field_ret = false; + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); + // format_field failure does NOT trigger cleanup_field (different path) + assert_int_equal(g_cleanup_field_calls, 0); +} + +static void test_field_handler_eip712_pop_loop_runs(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_EIP712; // forces the while loop entry + g_field_tlv_invoke_handler = true; + // The validator returns true twice then false → two pops, then exit. + g_validate_instruction_hash_budget = 2; + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_int_equal(g_tx_ctx_pop_calls, 2); +} + +static void test_field_handler_process_empty_failure_propagates(void **state) { + (void) state; + static const s_tx_info dummy = {0}; + g_tx_info_ret = &dummy; + appState = APP_STATE_SIGNING_EIP712; + g_field_tlv_invoke_handler = true; + g_validate_instruction_hash_budget = 1; // first iter true, then false + g_process_empty_txs_after_ret = false; // bail out of while loop + + handle_field(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); +} + +// --- cmd_tx_info internal handler --- + +static void test_tx_info_handler_happy_path(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + + assert_int_equal(handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL), SWO_SUCCESS); + assert_true(g_field_tlv_handler_returned); +} + +static void test_tx_info_handler_struct_failure(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_handle_tx_info_struct_ret = false; + + handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); +} + +static void test_tx_info_handler_verify_failure(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_verify_tx_info_struct_ret = false; + + handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); +} + +static void test_tx_info_handler_no_matching_ctx_rejected(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_find_matching_tx_ctx_ret = false; + + handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); +} + +static void test_tx_info_handler_set_info_failure_propagates(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + g_field_tlv_invoke_handler = true; + g_set_tx_info_into_tx_ctx_ret = false; + + handle_tx_info(P1_FIRST_CHUNK, 0, 0, NULL); + assert_false(g_field_tlv_handler_returned); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_field_wrong_appstate_rejected, reset), + cmocka_unit_test_setup(test_field_signing_message_state_rejected, reset), + cmocka_unit_test_setup(test_field_no_tx_info_triggers_cleanup, reset), + cmocka_unit_test_setup(test_field_tlv_failure_returns_incorrect_data, reset), + cmocka_unit_test_setup(test_field_tlv_success_returns_success, reset), + cmocka_unit_test_setup(test_field_signing_eip712_allowed, reset), + cmocka_unit_test_setup(test_tx_info_wrong_appstate_rejected, reset), + cmocka_unit_test_setup(test_tx_info_signing_message_state_rejected, reset), + cmocka_unit_test_setup(test_tx_info_tlv_failure_returns_incorrect_data, reset), + cmocka_unit_test_setup(test_tx_info_tlv_success_returns_success, reset), + cmocka_unit_test_setup(test_tx_info_eip712_signing_allowed, reset), + // Internal handler tests + cmocka_unit_test_setup(test_field_handler_happy_path, reset), + cmocka_unit_test_setup(test_field_handler_handle_field_struct_failure, reset), + cmocka_unit_test_setup(test_field_handler_hash_failure, reset), + cmocka_unit_test_setup(test_field_handler_verify_failure, reset), + cmocka_unit_test_setup(test_field_handler_format_failure, reset), + cmocka_unit_test_setup(test_field_handler_eip712_pop_loop_runs, reset), + cmocka_unit_test_setup(test_field_handler_process_empty_failure_propagates, reset), + cmocka_unit_test_setup(test_tx_info_handler_happy_path, reset), + cmocka_unit_test_setup(test_tx_info_handler_struct_failure, reset), + cmocka_unit_test_setup(test_tx_info_handler_verify_failure, reset), + cmocka_unit_test_setup(test_tx_info_handler_no_matching_ctx_rejected, reset), + cmocka_unit_test_setup(test_tx_info_handler_set_info_failure_propagates, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_get_eth2_public_key.c b/tests/unit/src/test_cmd_get_eth2_public_key.c new file mode 100644 index 0000000000..88d20d8e52 --- /dev/null +++ b/tests/unit/src/test_cmd_get_eth2_public_key.c @@ -0,0 +1,297 @@ +/** + * @file test_cmd_get_eth2_public_key.c + * @brief Unit tests for handle_get_eth2_public_key + get_eth2_public_key at + * src/features/get_eth2_public_key/cmd_get_eth2_public_key.c. + * + * Beacon-Chain (ETH2) validator key derivation. The host streams a BIP-32 + * path; the device derives an EIP-2333 BLS12-381 G1 private scalar, + * generates the matching public point, compresses it to 48 bytes with the + * standard y-parity flag, and shows it on screen for confirmation. A + * regression here disconnects the on-screen address from what the host + * will commit to in the deposit contract -- the user thinks they staked + * to validator X but the deposit goes to validator Y. + * + * Tests pin handle_get_eth2_public_key (APDU dispatcher) only: + * + * - wrong P1 (not CONFIRM / NON_CONFIRM) SWO_WRONG_P1_P2 + * - wrong P2 (not 0) SWO_WRONG_P1_P2 + * - parseBip32 returns NULL SWO_INCORRECT_DATA + * - P1_NON_CONFIRM happy path SWO_SUCCESS + tx set + * - P1_CONFIRM happy path 0 (deferred reply via UI) + * - G_called_from_swap=false -> reset_app_context() called once + * - G_called_from_swap=true -> reset_app_context() NOT called + * + * get_eth2_public_key itself (the BLS pipeline) lives in the same + * translation unit as the dispatcher; the linker can't redirect intra-TU + * calls with --wrap, so the dispatcher genuinely runs the real BLS body. + * The SDK side-effects (os_perso_derive_eip2333, cx_ecfp_*_no_throw, + * cx_math_*_no_throw) are stubbed at link time to return CX_OK so the + * happy paths complete deterministically. Failure propagation through + * the BLS chain isn't pinned -- exercising it cleanly would require + * mocking the SDK try/catch stack (os_derive_eip2333_no_throw is a + * `static inline` in the SDK), which is outside the scope of a Tier L + * coverage pass. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "feature_get_eth2_public_key.h" + +// ============================================================================= +// Wraps for handle_get_eth2_public_key +// ============================================================================= + +const uint8_t *__wrap_parseBip32(const uint8_t *dataBuffer, uint8_t *dataLength, void *bip32) { + (void) dataBuffer; + (void) dataLength; + bip32_path_t *out = (bip32_path_t *) bip32; + bool ok = (bool) mock(); + if (!ok) return NULL; + out->length = 5; + for (int i = 0; i < 5; i++) out->path[i] = (uint32_t) i; + return dataBuffer; +} + +static uint32_t g_set_result_ret = 0; +uint32_t __wrap_set_result_get_eth2_publicKey(void) { + return g_set_result_ret; +} + +static int g_ui_calls = 0; +void __wrap_ui_display_public_eth2(void) { + g_ui_calls++; +} + +static int g_reset_calls = 0; +void __wrap_reset_app_context(void) { + g_reset_calls++; +} + +void __wrap_io_seproxyhal_io_heartbeat(void) { +} + +// ============================================================================= +// Link-only stubs for the SDK symbols referenced by the real BLS pipeline. +// All controllable via *_ret globals so tests can drive each CX_CHECK +// step's failure branch (the source uses CX_CHECK chains so any error +// short-circuits the rest of get_eth2_public_key). +// ============================================================================= + +static cx_err_t g_init_priv_ret = CX_OK; +static cx_err_t g_gen_pair_ret = CX_OK; +static cx_err_t g_math_cmp_ret = CX_OK; +static int g_math_cmp_diff = 0; +static cx_err_t g_math_mult_ret = CX_OK; + +void os_perso_derive_eip2333(cx_curve_t curve, + const uint32_t *path, + unsigned int path_len, + unsigned char *raw_privkey) { + (void) curve; + (void) path; + (void) path_len; + (void) raw_privkey; +} + +cx_err_t cx_ecfp_init_private_key_no_throw(cx_curve_t curve, + const uint8_t *rawkey, + size_t key_len, + cx_ecfp_private_key_t *key) { + (void) curve; + (void) rawkey; + (void) key_len; + (void) key; + return g_init_priv_ret; +} + +cx_err_t cx_ecfp_generate_pair_no_throw(cx_curve_t curve, + cx_ecfp_public_key_t *pubkey, + cx_ecfp_private_key_t *privkey, + bool keepprivate) { + (void) curve; + (void) pubkey; + (void) privkey; + (void) keepprivate; + return g_gen_pair_ret; +} + +cx_err_t cx_math_cmp_no_throw(const uint8_t *a, const uint8_t *b, size_t length, int *diff) { + (void) a; + (void) b; + (void) length; + if (diff != NULL) *diff = g_math_cmp_diff; + return g_math_cmp_ret; +} + +// cx_math_mult_no_throw is the only BLS-pipeline helper that lives in +// mocks/mock.c (WEAK returning CX_OK). Wrap it locally so we can drive +// a failure too; the cmake target adds --wrap=cx_math_mult_no_throw. +cx_err_t __wrap_cx_math_mult_no_throw(uint8_t *r, const uint8_t *a, const uint8_t *b, size_t len) { + (void) r; + (void) a; + (void) b; + (void) len; + return g_math_mult_ret; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + g_ui_calls = 0; + g_reset_calls = 0; + g_set_result_ret = 42; + g_init_priv_ret = CX_OK; + g_gen_pair_ret = CX_OK; + g_math_cmp_ret = CX_OK; + g_math_cmp_diff = 0; + g_math_mult_ret = CX_OK; + memset(&tmpCtx, 0, sizeof(tmpCtx)); + appState = APP_STATE_IDLE; + G_called_from_swap = false; + return 0; +} + +// ============================================================================= +// handle_get_eth2_public_key +// ============================================================================= + +static void test_wrong_p1_rejected(void **state) { + (void) state; + unsigned int tx = 0; + assert_int_equal(handle_get_eth2_public_key(0xFF, 0, (uint8_t *) "", 0, &tx), SWO_WRONG_P1_P2); +} + +static void test_wrong_p2_rejected(void **state) { + (void) state; + unsigned int tx = 0; + assert_int_equal(handle_get_eth2_public_key(P1_CONFIRM, 1, (uint8_t *) "", 0, &tx), + SWO_WRONG_P1_P2); +} + +static void test_parsebip32_failure_rejected(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, false); + assert_int_equal(handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx), + SWO_INCORRECT_DATA); +} + +static void test_non_confirm_returns_success_and_sets_tx(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_set_result_ret = 64; + uint16_t sw = handle_get_eth2_public_key(P1_NON_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(tx, 64); + // UI MUST NOT fire for the non-interactive read path. + assert_int_equal(g_ui_calls, 0); +} + +static void test_confirm_defers_reply_via_ui(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + // Deferred reply: the dispatcher returns 0 and the UI thread will + // emit the final SW after the user confirms. + assert_int_equal(sw, 0); + assert_int_equal(g_ui_calls, 1); +} + +static void test_called_from_swap_skips_reset_app_context(void **state) { + (void) state; + unsigned int tx = 0; + G_called_from_swap = true; + // Drive to a quick SWO_WRONG_P1_P2 path so the reset-check is the + // only thing under observation. + handle_get_eth2_public_key(0xFF, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(g_reset_calls, 0); +} + +// ============================================================================= +// BLS-pipeline CX_CHECK failure branches +// ============================================================================= +// Each of the four SDK calls inside get_eth2_public_key sits behind a +// CX_CHECK that short-circuits to `end` on a non-CX_OK return. The +// stubs above honour *_ret globals so a test can flip exactly one to +// fail and observe the SW propagating back through handle_get_eth2_ +// public_key. A fifth case covers cx_math_cmp_no_throw's diff>0 +// branch (sets the y_flag bit on the BLS public key). + +static void test_init_private_key_failure_propagates(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_init_priv_ret = CX_INVALID_PARAMETER; + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +static void test_generate_pair_failure_propagates(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_gen_pair_ret = CX_INVALID_PARAMETER; + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +static void test_math_mult_failure_propagates(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_math_mult_ret = CX_INVALID_PARAMETER; + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +static void test_math_cmp_failure_propagates(void **state) { + (void) state; + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_math_cmp_ret = CX_INVALID_PARAMETER; + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +static void test_math_cmp_positive_diff_sets_y_flag(void **state) { + (void) state; + // BLS compressed pubkey carries a "y-coordinate parity" flag in the + // top byte. The source sets it when diff > 0, leaves it unset + // otherwise. Pre-existing tests use g_math_cmp_diff=0; flip the + // sign to cover the y-flag-set branch. + unsigned int tx = 0; + will_return(__wrap_parseBip32, true); + g_math_cmp_diff = 1; // > 0 -> y_flag = 0x20 + uint16_t sw = handle_get_eth2_public_key(P1_CONFIRM, 0, (uint8_t *) "", 0, &tx); + assert_int_equal(sw, 0); // happy path: ux_display deferred reply +} + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_wrong_p1_rejected, reset), + cmocka_unit_test_setup(test_wrong_p2_rejected, reset), + cmocka_unit_test_setup(test_parsebip32_failure_rejected, reset), + cmocka_unit_test_setup(test_non_confirm_returns_success_and_sets_tx, reset), + cmocka_unit_test_setup(test_confirm_defers_reply_via_ui, reset), + cmocka_unit_test_setup(test_called_from_swap_skips_reset_app_context, reset), + cmocka_unit_test_setup(test_init_private_key_failure_propagates, reset), + cmocka_unit_test_setup(test_generate_pair_failure_propagates, reset), + cmocka_unit_test_setup(test_math_mult_failure_propagates, reset), + cmocka_unit_test_setup(test_math_cmp_failure_propagates, reset), + cmocka_unit_test_setup(test_math_cmp_positive_diff_sets_y_flag, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_get_public_key.c b/tests/unit/src/test_cmd_get_public_key.c new file mode 100644 index 0000000000..9c6682b248 --- /dev/null +++ b/tests/unit/src/test_cmd_get_public_key.c @@ -0,0 +1,358 @@ +/** + * @file test_cmd_get_public_key.c + * @brief Unit tests for the GET_PUBLIC_KEY handler at + * src/features/get_public_key/cmd_get_public_key.c + * and the underlying derivation helpers in + * src/features/get_public_key/get_public_key.c. + * + * GET_PUBLIC_KEY is what wallets call to learn the address that + * corresponds to a given BIP-32 path on this device. The handler: + * - parses (and validates) the requested BIP-32 path, + * - derives the SECP256K1 public key on that path, + * - turns it into an Ethereum address (keccak-256(pubkey)[12..32]), + * - optionally pins the chain_id (so clones don't accept paths + * intended for mainnet), + * - either reply immediately (P1_NON_CONFIRM) or show the address + * on screen for user confirmation (P1_CONFIRM). + * + * A bug in this path is high-impact: + * - the wrong address can be shown to the user (they think they + * own X but really own Y → lost funds when they share the addr), + * - the response layout can let an attacker smuggle extra bytes + * past the address (host-side parser confusion), + * - the chain-id check can be bypassed (clone app handing out + * a mainnet address while pretending to be a fork). + * + * Pin every P1/P2 combination, the parse / chain / leftover gates, + * the failure paths, and the wire-format of set_result_get_publicKey. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "get_public_key.h" +#include "common_utils.h" +#include "wraps.h" + +// ============================================================================= +// Globals required by linked translation units +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// parseBip32 is wrapped in mocks/mock.c; toggle g_parsebip32_force_null +// from wraps.h to drive the negative tests. + +// bip32_derive_get_pubkey_256 is a `static inline` in +// crypto_helpers.h that delegates to bip32_derive_with_seed_get_pubkey_256; +// wrap the underlying primitive so we control its outcome. +static cx_err_t g_derive_ret = CX_OK; +cx_err_t __wrap_bip32_derive_with_seed_get_pubkey_256(unsigned int derivation_mode, + cx_curve_t curve, + const uint32_t *path, + size_t path_len, + uint8_t raw_pubkey[static 65], + uint8_t *chain_code, + cx_md_t hashID, + unsigned char *seed, + size_t seed_len) { + (void) derivation_mode; + (void) curve; + (void) path; + (void) path_len; + (void) hashID; + (void) seed; + (void) seed_len; + memset(raw_pubkey, 0x55, 65); + if (chain_code != NULL) { + memset(chain_code, 0xCC, 32); + } + return g_derive_ret; +} + +static int g_eth_addr_from_raw_calls = 0; +void __wrap_getEthAddressFromRawKey(const uint8_t *publicKey, uint8_t *out) { + (void) publicKey; + g_eth_addr_from_raw_calls++; + memset(out, 0xAA, 20); +} + +static int g_eth_addr_string_calls = 0; +void __wrap_getEthAddressStringFromRawKey(const uint8_t *publicKey, char *out, uint64_t chain_id) { + (void) publicKey; + (void) chain_id; + g_eth_addr_string_calls++; + // ADDRESS_LENGTH_HEX = 40, then NUL = 41 + memset(out, 'A', 40); + out[40] = '\0'; +} + +static int g_reset_calls = 0; +void __wrap_reset_app_context(void) { + g_reset_calls++; +} + +static int g_ui_display_calls = 0; +static uint64_t g_ui_display_chain; +void ui_display_public_key(const uint64_t *chain_id) { + g_ui_display_calls++; + if (chain_id != NULL) g_ui_display_chain = *chain_id; +} + +// ============================================================================= +// APDU builder +// ============================================================================= + +static size_t build_apdu(uint8_t *out, size_t out_size, bool include_chain_id, uint64_t chain_id) { + size_t off = 0; + out[off++] = 5; // bip32 path length + for (int i = 0; i < 5; i++) { + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + } + if (include_chain_id) { + for (int i = 7; i >= 0; i--) { + out[off++] = (uint8_t) (chain_id >> (8 * i)); + } + } + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + G_called_from_swap = false; + g_parsebip32_force_null = false; + g_derive_ret = CX_OK; + g_eth_addr_from_raw_calls = 0; + g_eth_addr_string_calls = 0; + g_reset_calls = 0; + g_ui_display_calls = 0; + g_ui_display_chain = 0; + g_chainConfig.chain_id = 1; + memset(&tmpCtx, 0, sizeof(tmpCtx)); + memset(&strings, 0, sizeof(strings)); + memset(G_io_tx_buffer, 0, sizeof(G_io_tx_buffer)); + return 0; +} + +// ============================================================================= +// Tests — handle_get_public_key +// ============================================================================= + +static void test_no_reset_when_idle_and_not_from_swap(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + (void) handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(g_reset_calls, 0); +} + +static void test_skips_reset_when_called_from_swap(void **state) { + (void) state; + G_called_from_swap = true; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + (void) handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(g_reset_calls, 0); +} + +static void test_invalid_p1_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(/*p1=*/0x05, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_invalid_p2_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, /*p2=*/0x05, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_bad_bip32_rejected(void **state) { + (void) state; + g_parsebip32_force_null = true; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_derive_failure_rejected(void **state) { + (void) state; + g_derive_ret = CX_INVALID_PARAMETER; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_non_confirm_happy_path_writes_response(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_SUCCESS); + // set_result_get_publicKey layout: + // [pubkey_len=65] [65 bytes pubkey] [addr_len=40] [40 bytes addr] + // Total without chaincode: 1 + 65 + 1 + 40 = 107. + assert_int_equal(tx, 1 + 65 + 1 + 40); + assert_int_equal(G_io_tx_buffer[0], 65); + assert_int_equal(G_io_tx_buffer[66], 40); + // No UI on NON_CONFIRM. + assert_int_equal(g_ui_display_calls, 0); +} + +static void test_chaincode_path_extends_response(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + (void) handle_get_public_key(P1_NON_CONFIRM, P2_CHAINCODE, apdu, (uint8_t) len, &tx); + // P2_CHAINCODE appends 32 chain-code bytes after the address. + assert_int_equal(tx, 1 + 65 + 1 + 40 + 32); + // The chaincode bytes the wrap filled with 0xCC must land after + // the address (offset 1 + 65 + 1 + 40 = 107). + assert_int_equal(G_io_tx_buffer[107], 0xCC); +} + +static void test_confirm_calls_ui_and_returns_no_response(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false, 0); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_display_calls, 1); + // strings.common.toAddress must be filled with "0x" + 40 hex chars. + assert_int_equal(strings.common.toAddress[0], '0'); + assert_int_equal(strings.common.toAddress[1], 'x'); +} + +static void test_chain_id_mismatch_rejected_on_clone(void **state) { + (void) state; + g_chainConfig.chain_id = 137; // Polygon (clone) + uint8_t apdu[64]; + // Host sends chain_id = 1 (ETH mainnet) — the clone must refuse. + size_t len = build_apdu(apdu, sizeof(apdu), true, 1); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_chain_id_match_accepted_on_clone(void **state) { + (void) state; + g_chainConfig.chain_id = 137; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), true, 137); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_SUCCESS); +} + +static void test_mainnet_app_accepts_any_chain_id(void **state) { + (void) state; + g_chainConfig.chain_id = ETHEREUM_MAINNET_CHAINID; + uint8_t apdu[64]; + // Host sends 137; the mainnet app does NOT enforce chain_id match. + size_t len = build_apdu(apdu, sizeof(apdu), true, 137); + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_SUCCESS); +} + +static void test_leftover_bytes_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), true, 1); + // Append one extra trailing byte the parser doesn't expect. + apdu[len++] = 0xCC; + unsigned int tx = 0; + uint16_t sw = handle_get_public_key(P1_NON_CONFIRM, P2_NO_CHAINCODE, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +// ============================================================================= +// Tests — get_public_key (the version called from sign-tx flows) +// ============================================================================= + +static void test_get_public_key_short_buffer_rejected(void **state) { + (void) state; + uint8_t out[10]; // < ADDRESS_LENGTH + uint16_t sw = get_public_key(out, sizeof(out)); + assert_int_equal(sw, SWO_WRONG_DATA_LENGTH); +} + +static void test_get_public_key_derive_failure_propagates(void **state) { + (void) state; + g_derive_ret = CX_INVALID_PARAMETER; + uint8_t out[20]; + uint16_t sw = get_public_key(out, sizeof(out)); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +static void test_get_public_key_happy_path(void **state) { + (void) state; + uint8_t out[20]; + memset(out, 0, sizeof(out)); + uint16_t sw = get_public_key(out, sizeof(out)); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(g_eth_addr_from_raw_calls, 1); + // The wrap fills out with 0xAA. + for (int i = 0; i < 20; i++) { + assert_int_equal(out[i], 0xAA); + } +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_no_reset_when_idle_and_not_from_swap, reset), + cmocka_unit_test_setup(test_skips_reset_when_called_from_swap, reset), + cmocka_unit_test_setup(test_invalid_p1_rejected, reset), + cmocka_unit_test_setup(test_invalid_p2_rejected, reset), + cmocka_unit_test_setup(test_bad_bip32_rejected, reset), + cmocka_unit_test_setup(test_derive_failure_rejected, reset), + cmocka_unit_test_setup(test_non_confirm_happy_path_writes_response, reset), + cmocka_unit_test_setup(test_chaincode_path_extends_response, reset), + cmocka_unit_test_setup(test_confirm_calls_ui_and_returns_no_response, reset), + cmocka_unit_test_setup(test_chain_id_mismatch_rejected_on_clone, reset), + cmocka_unit_test_setup(test_chain_id_match_accepted_on_clone, reset), + cmocka_unit_test_setup(test_mainnet_app_accepts_any_chain_id, reset), + cmocka_unit_test_setup(test_leftover_bytes_rejected, reset), + cmocka_unit_test_setup(test_get_public_key_short_buffer_rejected, reset), + cmocka_unit_test_setup(test_get_public_key_derive_failure_propagates, reset), + cmocka_unit_test_setup(test_get_public_key_happy_path, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_get_tx_simulation.c b/tests/unit/src/test_cmd_get_tx_simulation.c new file mode 100644 index 0000000000..68ad8cf45c --- /dev/null +++ b/tests/unit/src/test_cmd_get_tx_simulation.c @@ -0,0 +1,475 @@ +/** + * @file test_cmd_get_tx_simulation.c + * @brief Unit tests for the Ethereum-specific transaction-simulation logic + * at src/features/provide_tx_simulation/cmd_get_tx_simulation.c. + * + * The TLV parsing and signature verification are SDK responsibilities + * (tlv_use_case_transaction_check). This test wraps that SDK entry point + * to inject controlled outputs and exercises only the app-level logic: + * - APDU dispatcher (handle_tx_simulation: P1 routing, opt-in) + * - Ethereum cross-checks (hash, address, chain_id, app-state) + * - Warning bit configuration (set_tx_simulation_warning) + * - String getters (get_tx_simulation_risk_str, get_tx_simulation_category_str) + * - Cleanup (clear_tx_simulation) + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "cmd_get_tx_simulation.h" +#include "apdu_constants.h" +#include "tlv_apdu.h" +#include "nbgl_use_case.h" +#include "wraps.h" + +// ============================================================================= +// Controllable stubs +// ============================================================================= + +// --- SDK use-case wrap --- +// Wraps tlv_use_case_transaction_check to inject controlled results +// without exercising the SDK TLV parser / signature verifier. +static tlv_transaction_check_status_t g_uc_ret = TLV_TRANSACTION_CHECK_SUCCESS; +static transaction_check_risk_t g_uc_risk = TRANSACTION_CHECK_RISK_BENIGN; +static transaction_check_type_t g_uc_type = TRANSACTION_CHECK_TYPE_TRANSACTION; +static transaction_check_category_t g_uc_category = TRANSACTION_CHECK_CATEGORY_OTHERS; +static uint64_t g_uc_chain_id = 1; +static bool g_uc_chain_id_received = true; +static bool g_uc_domain_hash_received = false; +static bool g_uc_additional_data_received = false; +static const char *g_uc_partner = "Provider"; + +// Fixed buffers for the wrap to hand out via zero-copy pointers. +static uint8_t g_uc_tx_hash[CX_SHA3_256_SIZE]; +static uint8_t g_uc_domain_hash[CX_SHA3_256_SIZE]; +static uint8_t g_uc_address[ADDRESS_LENGTH]; + +tlv_transaction_check_status_t __wrap_tlv_use_case_transaction_check( + const buffer_t *payload, + tlv_transaction_check_out_t *out) { + (void) payload; + if (g_uc_ret != TLV_TRANSACTION_CHECK_SUCCESS) { + return g_uc_ret; + } + out->risk = g_uc_risk; + out->type = g_uc_type; + out->category = g_uc_category; + out->chain_id = g_uc_chain_id; + out->chain_id_received = g_uc_chain_id_received; + out->domain_hash_received = g_uc_domain_hash_received; + out->additional_data_received = g_uc_additional_data_received; + out->tx_hash.ptr = g_uc_tx_hash; + out->tx_hash.size = sizeof(g_uc_tx_hash); + out->domain_hash.ptr = g_uc_domain_hash; + out->domain_hash.size = sizeof(g_uc_domain_hash); + out->address.ptr = g_uc_address; + out->address.size = sizeof(g_uc_address); + strncpy(out->partner, g_uc_partner, sizeof(out->partner) - 1); + out->partner[sizeof(out->partner) - 1] = '\0'; + return TLV_TRANSACTION_CHECK_SUCCESS; +} + +// --- io_seproxyhal_send_status stub --- +static int g_send_status_calls = 0; +uint16_t io_seproxyhal_send_status(uint16_t sw, uint32_t tx, bool reset, bool idle) { + (void) sw; + (void) tx; + (void) reset; + (void) idle; + g_send_status_calls++; + return 0; +} + +// --- UI opt-in stub --- +static int g_ui_opt_in_calls = 0; +static bool g_ui_opt_in_response_expected = false; +void ui_tx_simulation_opt_in(bool response_expected) { + g_ui_opt_in_calls++; + g_ui_opt_in_response_expected = response_expected; +} + +// --- get_public_key wrap --- +static uint8_t g_pubkey_addr[ADDRESS_LENGTH]; +uint16_t __wrap_get_public_key(uint8_t *out, uint8_t out_size) { + if (out_size < ADDRESS_LENGTH) { + return SWO_INCORRECT_DATA; + } + memcpy(out, g_pubkey_addr, ADDRESS_LENGTH); + return SWO_SUCCESS; +} + +// ============================================================================= +// Helpers +// ============================================================================= + +// Send a minimal first-chunk APDU that goes through tlv_from_apdu. +// The actual TLV content doesn't matter because the SDK parser is wrapped. +static bool send_descriptor(void) { + // tlv_from_apdu expects a 2-byte BE length prefix followed by payload. + // We send a trivial 1-byte "payload" — the wrap ignores it. + uint8_t framed[3] = {0x00, 0x01, 0x00}; + uint16_t sw = handle_tx_simulation(/*p1=*/0x00, /*p2=*/P1_FIRST_CHUNK, framed, sizeof(framed)); + return sw == SWO_SUCCESS; +} + +// Prime a successful descriptor and matching signing context for +// set_tx_simulation_warning cross-check tests. +static void prime_for_warning(transaction_check_risk_t risk) { + g_uc_risk = risk; + g_uc_type = TRANSACTION_CHECK_TYPE_TRANSACTION; + g_uc_category = TRANSACTION_CHECK_CATEGORY_OTHERS; + g_uc_chain_id = 1; + g_uc_chain_id_received = true; + g_uc_domain_hash_received = false; + g_uc_additional_data_received = false; + memset(g_uc_tx_hash, 0xBB, sizeof(g_uc_tx_hash)); + memset(g_uc_address, 0xAA, sizeof(g_uc_address)); + assert_true(send_descriptor()); + // Mirror the same values into the active signing context. + memset(tmpCtx.transactionContext.hash, 0xBB, INT256_LENGTH); + appState = APP_STATE_SIGNING_TX; + g_tx_chain_id = 1; + memset(g_pubkey_addr, 0xAA, ADDRESS_LENGTH); +} + +static void prime_for_warning_typed_data(transaction_check_risk_t risk) { + g_uc_risk = risk; + g_uc_type = TRANSACTION_CHECK_TYPE_TYPED_DATA; + g_uc_category = TRANSACTION_CHECK_CATEGORY_OTHERS; + g_uc_chain_id_received = false; + g_uc_domain_hash_received = true; + g_uc_additional_data_received = false; + memset(g_uc_tx_hash, 0xBB, sizeof(g_uc_tx_hash)); + memset(g_uc_domain_hash, 0xCC, sizeof(g_uc_domain_hash)); + memset(g_uc_address, 0xAA, sizeof(g_uc_address)); + assert_true(send_descriptor()); + memset(tmpCtx.messageSigningContext712.messageHash, 0xBB, INT256_LENGTH); + memset(tmpCtx.messageSigningContext712.domainHash, 0xCC, INT256_LENGTH); + appState = APP_STATE_SIGNING_EIP712; + memset(g_pubkey_addr, 0xAA, ADDRESS_LENGTH); +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + clear_tx_simulation(); + memset(&g_n_storage_writable, 0, sizeof(g_n_storage_writable)); + g_n_storage_writable.tx_check_enable = true; + g_n_storage_writable.tx_check_opt_in = true; + g_uc_ret = TLV_TRANSACTION_CHECK_SUCCESS; + g_uc_risk = TRANSACTION_CHECK_RISK_BENIGN; + g_uc_type = TRANSACTION_CHECK_TYPE_TRANSACTION; + g_uc_category = TRANSACTION_CHECK_CATEGORY_OTHERS; + g_uc_chain_id = 1; + g_uc_chain_id_received = true; + g_uc_domain_hash_received = false; + g_uc_additional_data_received = false; + g_uc_partner = "Provider"; + memset(g_uc_tx_hash, 0xBB, sizeof(g_uc_tx_hash)); + memset(g_uc_domain_hash, 0, sizeof(g_uc_domain_hash)); + memset(g_uc_address, 0xAA, sizeof(g_uc_address)); + g_send_status_calls = 0; + g_ui_opt_in_calls = 0; + g_ui_opt_in_response_expected = false; + g_tx_chain_id = 1; + memset(g_pubkey_addr, 0xAA, ADDRESS_LENGTH); + appState = APP_STATE_SIGNING_TX; + // tlv_apdu carries internal state across calls — clear it. + tlv_from_apdu(false, 0, NULL, NULL); + return 0; +} + +// ============================================================================= +// Tests — APDU dispatcher +// ============================================================================= + +static void test_p1_unknown_rejected(void **state) { + (void) state; + uint8_t data[1] = {0}; + uint16_t sw = handle_tx_simulation(/*p1=*/0xFF, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_p1_data_when_checks_disabled_returns_not_supported(void **state) { + (void) state; + g_n_storage_writable.tx_check_enable = false; + uint8_t data[1] = {0}; + uint16_t sw = handle_tx_simulation(/*p1=*/0x00, /*p2=*/P1_FIRST_CHUNK, data, 1); + assert_int_equal(sw, SWO_COMMAND_CODE_NOT_SUPPORTED); +} + +static void test_p1_opt_in_already_optin_short_circuits(void **state) { + (void) state; + g_n_storage_writable.tx_check_opt_in = true; + g_n_storage_writable.tx_check_enable = true; + appState = APP_STATE_IDLE; + uint8_t data[1] = {0}; + uint16_t sw = handle_tx_simulation(/*p1=*/0x01, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_send_status_calls, 1); + assert_int_equal(g_ui_opt_in_calls, 0); +} + +static void test_p1_opt_in_not_yet_optin_calls_ui(void **state) { + (void) state; + g_n_storage_writable.tx_check_opt_in = false; + appState = APP_STATE_IDLE; + uint8_t data[1] = {0}; + uint16_t sw = handle_tx_simulation(/*p1=*/0x01, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_opt_in_calls, 1); + assert_true(g_ui_opt_in_response_expected); +} + +static void test_p1_data_rejected_when_already_received(void **state) { + (void) state; + assert_true(send_descriptor()); + // A second provisioning while received==true must be rejected so the host + // cannot overwrite the displayed warning after the review is on screen. + assert_false(send_descriptor()); +} + +static void test_p1_opt_in_rejected_when_app_not_idle(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + uint8_t data[1] = {0}; + uint16_t sw = handle_tx_simulation(/*p1=*/0x01, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + assert_int_equal(g_ui_opt_in_calls, 0); +} + +// ============================================================================= +// Tests — app-level rejection of SDK output +// ============================================================================= + +static void test_sdk_failure_rejects(void **state) { + (void) state; + g_uc_ret = TLV_TRANSACTION_CHECK_PARSING_ERROR; + assert_false(send_descriptor()); +} + +static void test_additional_data_rejected(void **state) { + (void) state; + g_uc_additional_data_received = true; + assert_false(send_descriptor()); +} + +static void test_transaction_without_chain_id_rejected(void **state) { + (void) state; + g_uc_type = TRANSACTION_CHECK_TYPE_TRANSACTION; + g_uc_chain_id_received = false; + assert_false(send_descriptor()); +} + +static void test_typed_data_without_domain_hash_rejected(void **state) { + (void) state; + g_uc_type = TRANSACTION_CHECK_TYPE_TYPED_DATA; + g_uc_domain_hash_received = false; + assert_false(send_descriptor()); +} + +// ============================================================================= +// Tests — string getters +// ============================================================================= + +static void test_get_risk_str_for_each_value(void **state) { + (void) state; + g_uc_risk = TRANSACTION_CHECK_RISK_BENIGN; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_risk_str(), "BENIGN"); + + clear_tx_simulation(); + g_uc_risk = TRANSACTION_CHECK_RISK_WARNING; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_risk_str(), "RISK (WARNING)"); + + clear_tx_simulation(); + g_uc_risk = TRANSACTION_CHECK_RISK_MALICIOUS; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_risk_str(), "THREAT (MALICIOUS)"); + + clear_tx_simulation(); + assert_string_equal(get_tx_simulation_risk_str(), "BENIGN"); +} + +static void test_get_category_str_warning_branches(void **state) { + (void) state; + + g_uc_risk = TRANSACTION_CHECK_RISK_WARNING; + + g_uc_category = TRANSACTION_CHECK_CATEGORY_ADDRESS; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_category_str(), + "This transaction involves a suspicious address. " + "It might not be safe to continue."); + + clear_tx_simulation(); + g_uc_category = TRANSACTION_CHECK_CATEGORY_DAPP; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_category_str(), + "This transaction involves a suspicious dApp. " + "It might not be safe to continue."); + + clear_tx_simulation(); + g_uc_category = TRANSACTION_CHECK_CATEGORY_LOSING_OPERATION; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_category_str(), + "This transaction could end in a loss. " + "Check transaction details carefully before signing."); +} + +static void test_get_category_str_malicious_branches(void **state) { + (void) state; + + g_uc_risk = TRANSACTION_CHECK_RISK_MALICIOUS; + + g_uc_category = TRANSACTION_CHECK_CATEGORY_ADDRESS; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_category_str(), + "This transaction involves a malicious address. " + "Your assets will most likely be stolen."); + + clear_tx_simulation(); + g_uc_category = TRANSACTION_CHECK_CATEGORY_DAPP; + assert_true(send_descriptor()); + assert_string_equal(get_tx_simulation_category_str(), + "This dApp is linked to a scammer. " + "Your assets will most likely be stolen."); +} + +static void test_clear_tx_simulation_zeroes_struct(void **state) { + (void) state; + g_uc_chain_id = 42; + g_uc_risk = TRANSACTION_CHECK_RISK_WARNING; + assert_true(send_descriptor()); + clear_tx_simulation(); + assert_string_equal(get_tx_simulation_risk_str(), "BENIGN"); +} + +// ============================================================================= +// Tests — set_tx_simulation_warning cross-checks +// ============================================================================= + +static void test_set_warning_disabled_returns_early(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_MALICIOUS); + warning.predefinedSet = 0; + g_n_storage_writable.tx_check_enable = false; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 0); + assert_null(warning.reportProvider); +} + +static void test_set_warning_risk_benign_sets_no_threat_bit(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_BENIGN); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_NO_THREAT_WARN); +} + +static void test_set_warning_risk_warning_sets_risk_bit(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_WARNING); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_RISK_DETECTED_WARN); +} + +static void test_set_warning_risk_malicious_sets_threat_bit(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_MALICIOUS); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_THREAT_DETECTED_WARN); +} + +static void test_set_warning_address_mismatch_forces_issue(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_BENIGN); + memset(g_pubkey_addr, 0x77, ADDRESS_LENGTH); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_ISSUE_WARN); +} + +static void test_set_warning_tx_hash_mismatch_forces_issue(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_BENIGN); + memset(tmpCtx.transactionContext.hash, 0x99, INT256_LENGTH); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_ISSUE_WARN); +} + +static void test_set_warning_chain_id_mismatch_forces_issue(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_BENIGN); + g_tx_chain_id = 137; + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_ISSUE_WARN); +} + +static void test_set_warning_wrong_app_state_forces_issue(void **state) { + (void) state; + prime_for_warning(TRANSACTION_CHECK_RISK_BENIGN); + appState = APP_STATE_SIGNING_EIP712; + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_ISSUE_WARN); +} + +static void test_set_warning_typed_data_match_sets_warning_bit(void **state) { + (void) state; + prime_for_warning_typed_data(TRANSACTION_CHECK_RISK_WARNING); + warning.predefinedSet = 0; + set_tx_simulation_warning(); + assert_int_equal(warning.predefinedSet, 1U << W3C_RISK_DETECTED_WARN); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + // APDU dispatcher + cmocka_unit_test_setup(test_p1_unknown_rejected, reset), + cmocka_unit_test_setup(test_p1_data_when_checks_disabled_returns_not_supported, reset), + cmocka_unit_test_setup(test_p1_data_rejected_when_already_received, reset), + cmocka_unit_test_setup(test_p1_opt_in_already_optin_short_circuits, reset), + cmocka_unit_test_setup(test_p1_opt_in_not_yet_optin_calls_ui, reset), + cmocka_unit_test_setup(test_p1_opt_in_rejected_when_app_not_idle, reset), + // App-level validation of SDK output + cmocka_unit_test_setup(test_sdk_failure_rejects, reset), + cmocka_unit_test_setup(test_additional_data_rejected, reset), + cmocka_unit_test_setup(test_transaction_without_chain_id_rejected, reset), + cmocka_unit_test_setup(test_typed_data_without_domain_hash_rejected, reset), + // String getters + cmocka_unit_test_setup(test_get_risk_str_for_each_value, reset), + cmocka_unit_test_setup(test_get_category_str_warning_branches, reset), + cmocka_unit_test_setup(test_get_category_str_malicious_branches, reset), + cmocka_unit_test_setup(test_clear_tx_simulation_zeroes_struct, reset), + // Cross-check logic (set_tx_simulation_warning) + cmocka_unit_test_setup(test_set_warning_disabled_returns_early, reset), + cmocka_unit_test_setup(test_set_warning_risk_benign_sets_no_threat_bit, reset), + cmocka_unit_test_setup(test_set_warning_risk_warning_sets_risk_bit, reset), + cmocka_unit_test_setup(test_set_warning_risk_malicious_sets_threat_bit, reset), + cmocka_unit_test_setup(test_set_warning_address_mismatch_forces_issue, reset), + cmocka_unit_test_setup(test_set_warning_tx_hash_mismatch_forces_issue, reset), + cmocka_unit_test_setup(test_set_warning_chain_id_mismatch_forces_issue, reset), + cmocka_unit_test_setup(test_set_warning_wrong_app_state_forces_issue, reset), + cmocka_unit_test_setup(test_set_warning_typed_data_match_sets_warning_bit, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_perform_privacy_operation.c b/tests/unit/src/test_cmd_perform_privacy_operation.c new file mode 100644 index 0000000000..a393fddc6d --- /dev/null +++ b/tests/unit/src/test_cmd_perform_privacy_operation.c @@ -0,0 +1,305 @@ +/** + * @file test_cmd_perform_privacy_operation.c + * @brief Unit tests for the PERFORM_PRIVACY_OPERATION handler at + * src/features/perform_privacy_operation/cmd_perform_privacy_operation.c. + * + * PERFORM_PRIVACY_OPERATION exposes two flows behind one APDU: + * - P2=0x00 (PUBLIC_ENCRYPTION_KEY): derive the X25519 public + * encryption key for a given BIP-32 path, + * - P2=0x01 (SHARED_SECRET): compute the X25519 shared secret with + * a host-supplied peer public key (32 bytes). + * + * The shared-secret path is the high-impact one: it releases + * cryptographic material derived from the device-held private key. + * The source enforces a CWE-200 guard requiring user confirmation + * (P1_CONFIRM) before any shared secret can leave the device, and a + * CWE-312 scrub (explicit_bzero) on the result buffer source after + * copy. Pin both, plus every wire-format gate. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "feature_perform_privacy_operation.h" +#include "wraps.h" + +// ============================================================================= +// Globals +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// parseBip32 is wrapped in mocks/mock.c; toggle g_parsebip32_force_null +// from wraps.h to drive the negative tests. + +// os_derive_bip32_no_throw is a static inline that delegates to +// os_derive_bip32_with_seed_no_throw, which itself wraps the syscall +// os_perso_derive_node_with_seed_key inside BEGIN_TRY/TRY. The +// syscall is the one we can wrap at link time. +static int g_derive_should_throw = 0; +void __wrap_os_perso_derive_node_with_seed_key(unsigned int mode, + cx_curve_t curve, + const unsigned int *path, + unsigned int path_len, + unsigned char *privateKey, + unsigned char *chain, + unsigned char *seed_key, + unsigned int seed_key_length) { + (void) mode; + (void) curve; + (void) path; + (void) path_len; + (void) seed_key; + (void) seed_key_length; + if (privateKey != NULL) memset(privateKey, 0x11, 64); + if (chain != NULL) memset(chain, 0xCC, 32); + // The BEGIN_TRY/TRY block treats a longjmp inside the body as the + // derivation failure path. We don't drive that here (see cmd_set_plugin + // for the accepted limitation around the SDK try-context layout). + (void) g_derive_should_throw; +} + +static cx_err_t g_init_priv_ret = CX_OK; +cx_err_t __wrap_cx_ecfp_init_private_key_no_throw(cx_curve_t curve, + const uint8_t *rawkey, + size_t key_len, + cx_ecfp_private_key_t *key) { + (void) curve; + (void) rawkey; + (void) key_len; + if (key != NULL) memset(key, 0x77, sizeof(cx_ecfp_private_key_t)); + return g_init_priv_ret; +} + +static cx_err_t g_gen_pair_ret = CX_OK; +cx_err_t __wrap_cx_ecfp_generate_pair_no_throw(cx_curve_t curve, + cx_ecfp_public_key_t *pubkey, + cx_ecfp_private_key_t *privkey, + bool keepprivate) { + (void) curve; + (void) privkey; + (void) keepprivate; + if (pubkey != NULL) { + memset(&pubkey->W[0], 0x04, 1); // uncompressed marker + memset(&pubkey->W[1], 0x33, 64); + pubkey->W_len = 65; + } + return g_gen_pair_ret; +} + +static cx_err_t g_x25519_ret = CX_OK; +cx_err_t __wrap_cx_x25519(uint8_t *p, const uint8_t *s, size_t s_len) { + (void) s; + (void) s_len; + if (p != NULL) { + // Overwrite the host-supplied peer key with deterministic + // shared-secret bytes so the response buffer can be inspected. + memset(p, 0x99, 32); + } + return g_x25519_ret; +} + +void __wrap_getEthAddressStringFromRawKey(const uint8_t *publicKey, char *out, uint64_t chain_id) { + (void) publicKey; + (void) chain_id; + memset(out, 'A', 40); + out[40] = '\0'; +} + +static int g_ui_pubkey_calls = 0; +static int g_ui_shared_calls = 0; +void ui_display_privacy_public_key(void) { + g_ui_pubkey_calls++; +} +void ui_display_privacy_shared_secret(void) { + g_ui_shared_calls++; +} + +// ============================================================================= +// APDU builder +// ============================================================================= + +static size_t build_apdu(uint8_t *out, size_t out_size, bool include_peer_key) { + size_t off = 0; + out[off++] = 5; // BIP-32 path length + for (int i = 0; i < 5; i++) { + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + } + if (include_peer_key) { + memset(out + off, 0x55, 32); + off += 32; + } + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + g_parsebip32_force_null = false; + g_init_priv_ret = CX_OK; + g_gen_pair_ret = CX_OK; + g_x25519_ret = CX_OK; + g_ui_pubkey_calls = 0; + g_ui_shared_calls = 0; + memset(&tmpCtx, 0, sizeof(tmpCtx)); + memset(&strings, 0, sizeof(strings)); + memset(G_io_tx_buffer, 0, sizeof(G_io_tx_buffer)); + return 0; +} + +// ============================================================================= +// Tests — dispatcher guards +// ============================================================================= + +static void test_invalid_p1_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(/*p1=*/0x05, 0, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_invalid_p2_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = + handle_perform_privacy_operation(P1_NON_CONFIRM, /*p2=*/0x05, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_shared_secret_requires_confirmation(void **state) { + (void) state; + // CWE-200 guard: shared-secret export must require P1_CONFIRM. + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), true); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_NON_CONFIRM, + /*p2=*/0x01, // P2_SHARED_SECRET + apdu, + (uint8_t) len, + &tx); + assert_int_equal(sw, SWO_CONDITIONS_NOT_SATISFIED); + // No UI / no key material released. + assert_int_equal(g_ui_pubkey_calls, 0); + assert_int_equal(g_ui_shared_calls, 0); +} + +static void test_bad_bip32_rejected(void **state) { + (void) state; + g_parsebip32_force_null = true; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_NON_CONFIRM, 0, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_shared_secret_short_peer_key_rejected(void **state) { + (void) state; + // P2=SHARED_SECRET requires the peer public key (32 bytes) right + // after the BIP-32 path. + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); // no 32-byte key + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_CONFIRM, 0x01, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_WRONG_DATA_LENGTH); +} + +// ============================================================================= +// Tests — derivation / SDK failures propagate +// ============================================================================= + +static void test_init_private_key_failure_propagates(void **state) { + (void) state; + g_init_priv_ret = CX_INVALID_PARAMETER; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_NON_CONFIRM, 0, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +// ============================================================================= +// Tests — happy paths +// ============================================================================= + +static void test_public_encryption_key_non_confirm(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_NON_CONFIRM, 0, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_SUCCESS); + // set_result_perform_privacy_operation returns INT256_LENGTH (32). + assert_int_equal(tx, INT256_LENGTH); + assert_int_equal(g_ui_pubkey_calls, 0); + assert_int_equal(g_ui_shared_calls, 0); + // CWE-312 scrub: tmpCtx.publicKeyContext must be zeroed after copy. + for (size_t i = 0; i < sizeof(tmpCtx.publicKeyContext); i++) { + assert_int_equal(((const uint8_t *) &tmpCtx.publicKeyContext)[i], 0); + } +} + +static void test_public_encryption_key_confirm_calls_ui(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), false); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_CONFIRM, 0, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_pubkey_calls, 1); + assert_int_equal(g_ui_shared_calls, 0); + // The displayed address must be filled with the "0x" prefix. + assert_int_equal(strings.common.toAddress[0], '0'); + assert_int_equal(strings.common.toAddress[1], 'x'); +} + +static void test_shared_secret_confirm_calls_ui(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_apdu(apdu, sizeof(apdu), true); + unsigned int tx = 0; + uint16_t sw = handle_perform_privacy_operation(P1_CONFIRM, 0x01, apdu, (uint8_t) len, &tx); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_shared_calls, 1); + assert_int_equal(g_ui_pubkey_calls, 0); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_invalid_p1_rejected, reset), + cmocka_unit_test_setup(test_invalid_p2_rejected, reset), + cmocka_unit_test_setup(test_shared_secret_requires_confirmation, reset), + cmocka_unit_test_setup(test_bad_bip32_rejected, reset), + cmocka_unit_test_setup(test_shared_secret_short_peer_key_rejected, reset), + cmocka_unit_test_setup(test_init_private_key_failure_propagates, reset), + cmocka_unit_test_setup(test_public_encryption_key_non_confirm, reset), + cmocka_unit_test_setup(test_public_encryption_key_confirm_calls_ui, reset), + cmocka_unit_test_setup(test_shared_secret_confirm_calls_ui, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_set_external_plugin.c b/tests/unit/src/test_cmd_set_external_plugin.c new file mode 100644 index 0000000000..d58455030a --- /dev/null +++ b/tests/unit/src/test_cmd_set_external_plugin.c @@ -0,0 +1,257 @@ +/** + * @file test_cmd_set_external_plugin.c + * @brief Unit tests for the SET_EXTERNAL_PLUGIN handler at + * src/features/set_external_plugin/cmd_set_external_plugin.c. + * + * SET_EXTERNAL_PLUGIN registers a (contract, selector) tuple as + * handled by a named external plugin so the device can route + * subsequent calldata-bearing transactions to the right plugin + * binary. The host-supplied payload is signed by a Ledger PKI key. + * A bug here lets an attacker pair an attacker-controlled plugin + * name with a victim contract address, hijacking how the user sees + * subsequent dApp interactions. + * + * The handler at-a-glance: + * - reject empty plugin name (defense in depth on top of the PKI + * signature, which a backend should never sign for an empty + * name anyway), + * - reject payloads too small to hold name + address + selector, + * - reject name lengths that would overrun the storage slot, + * - reject signatures that don't verify, + * - on success: load the plugin via os_lib_call, copy address + + * selector into dataContext.tokenContext, set pluginType = + * EXTERNAL, and bind to PLUGIN_CHAIN_ID_ANY (intentional: the + * external-plugin descriptor is chain-unbound, see the in-source + * comment about the CWE-345 follow-up). + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "eth_plugin_internal.h" +#include "wraps.h" + +// ============================================================================= +// Globals required by linked translation units +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// check_signature_with_pubkey is wrapped in mocks/mock.c; state via +// g_sig_check_ret + g_sig_check_calls from wraps.h. + +// ============================================================================= +// SDK exception scaffolding — same approach as test_cmd_set_plugin +// ============================================================================= +// +// The TRY/CATCH path is only entered for external-plugin loading via +// os_lib_call. We don't exercise the THROW branch from these tests +// because driving a real longjmp through the SDK try-context chain +// would require reproducing the SDK's struct try_context_s layout +// faithfully. Provide enough stubs to satisfy the linker on the happy +// path; CATCH_OTHER stays unreachable. + +static int g_os_lib_calls = 0; +void os_lib_call(unsigned int *params) { + (void) params; + g_os_lib_calls++; +} + +// ============================================================================= +// APDU payload builder +// ============================================================================= +// +// [name_len:1] [name:N] [address:20] [selector:4] [signature:M] +// + +typedef struct { + uint8_t name_len; // wire byte + const char *name; // may be NULL → zero-fill + uint8_t address_byte; // 20 copies + uint8_t selector_byte; // 4 copies + uint8_t sig_len; + bool include_signature; +} s_opts; + +static s_opts default_opts(void) { + s_opts o = {.name_len = 4, + .name = "Beef", + .address_byte = 0xAA, + .selector_byte = 0xCC, + .sig_len = 64, + .include_signature = true}; + return o; +} + +static size_t build_apdu(uint8_t *out, size_t out_size, const s_opts *opts) { + size_t off = 0; + out[off++] = opts->name_len; + if (opts->name != NULL) { + for (uint8_t i = 0; i < opts->name_len; i++) { + out[off++] = (uint8_t) opts->name[i]; + } + } else { + memset(out + off, 0, opts->name_len); + off += opts->name_len; + } + memset(out + off, opts->address_byte, 20); + off += 20; + memset(out + off, opts->selector_byte, 4); + off += 4; + if (opts->include_signature) { + for (uint8_t i = 0; i < opts->sig_len; i++) { + out[off++] = 0x42; + } + } + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + memset(&dataContext, 0, sizeof(dataContext)); + pluginType = PLUGIN_TYPE_NONE; + g_sig_check_ret = true; + g_sig_check_calls = 0; + g_os_lib_calls = 0; + memset(G_io_tx_buffer, 0, sizeof(G_io_tx_buffer)); + return 0; +} + +// ============================================================================= +// Tests +// ============================================================================= + +static void test_zero_length_payload_rejected(void **state) { + (void) state; + uint8_t apdu[1] = {0}; + uint16_t sw = handle_set_external_plugin(apdu, 0); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_empty_plugin_name_rejected(void **state) { + (void) state; + uint8_t apdu[100]; + s_opts opts = default_opts(); + opts.name_len = 0; + opts.name = ""; + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); + assert_int_equal(g_sig_check_calls, 0); +} + +static void test_payload_too_small_rejected(void **state) { + (void) state; + uint8_t apdu[100]; + s_opts opts = default_opts(); + opts.include_signature = false; + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + // The source guards `dataLength <= payload_size` (strict !) so a + // payload of *exactly* payload_size (no signature attached) still + // fails the check. + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_name_too_long_rejected(void **state) { + (void) state; + uint8_t apdu[256]; + s_opts opts = default_opts(); + // pluginName slot length is PLUGIN_NAME_MAX_LEN; the guard rejects + // anything that would not leave room for the NUL terminator. + opts.name_len = sizeof(dataContext.tokenContext.pluginName); + opts.name = NULL; + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_signature_failure_rejected(void **state) { + (void) state; + g_sig_check_ret = false; + uint8_t apdu[200]; + s_opts opts = default_opts(); + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); + // The plugin must NOT have been activated. + assert_int_equal(pluginType, PLUGIN_TYPE_NONE); +} + +static void test_happy_path_stores_address_and_selector(void **state) { + (void) state; + uint8_t apdu[200]; + s_opts opts = default_opts(); + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(g_os_lib_calls, 1); + assert_int_equal(pluginType, PLUGIN_TYPE_EXTERNAL); + // pluginName NUL-terminated. + assert_int_equal(dataContext.tokenContext.pluginName[opts.name_len], '\0'); + assert_memory_equal(dataContext.tokenContext.pluginName, "Beef", 4); + // 20 bytes of 0xAA in contractAddress. + for (int i = 0; i < 20; i++) { + assert_int_equal(dataContext.tokenContext.contractAddress[i], 0xAA); + } + // 4 bytes of 0xCC in methodSelector. + for (int i = 0; i < 4; i++) { + assert_int_equal(dataContext.tokenContext.methodSelector[i], 0xCC); + } +} + +static void test_happy_path_binds_chain_id_any(void **state) { + (void) state; + // External-plugin enrollment is intentionally chain-unbound. Pin + // that so a future "tighten chain binding" patch that touches this + // file flips an explicit test rather than silently changing UX. + uint8_t apdu[200]; + s_opts opts = default_opts(); + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + (void) handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(dataContext.tokenContext.pluginChainId, PLUGIN_CHAIN_ID_ANY); +} + +static void test_rejected_when_app_not_idle(void **state) { + (void) state; + uint8_t apdu[200]; + s_opts opts = default_opts(); + size_t len = build_apdu(apdu, sizeof(apdu), &opts); + appState = APP_STATE_SIGNING_TX; + uint16_t sw = handle_set_external_plugin(apdu, (uint8_t) len); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + assert_int_equal(pluginType, PLUGIN_TYPE_NONE); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_rejected_when_app_not_idle, reset), + cmocka_unit_test_setup(test_zero_length_payload_rejected, reset), + cmocka_unit_test_setup(test_empty_plugin_name_rejected, reset), + cmocka_unit_test_setup(test_payload_too_small_rejected, reset), + cmocka_unit_test_setup(test_name_too_long_rejected, reset), + cmocka_unit_test_setup(test_signature_failure_rejected, reset), + cmocka_unit_test_setup(test_happy_path_stores_address_and_selector, reset), + cmocka_unit_test_setup(test_happy_path_binds_chain_id_any, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_set_plugin.c b/tests/unit/src/test_cmd_set_plugin.c new file mode 100644 index 0000000000..d0253dff6a --- /dev/null +++ b/tests/unit/src/test_cmd_set_plugin.c @@ -0,0 +1,449 @@ +/** + * @file test_cmd_set_plugin.c + * @brief Unit tests for the external-plugin registration APDU at + * src/features/set_plugin/cmd_set_plugin.c. + * + * INS_SET_PLUGIN carries a backend-signed binary payload that + * registers a plugin for the next transaction: TYPE + VERSION + + * NAME_LEN + NAME + CONTRACT_ADDR + SELECTOR + CHAIN_ID + KEY_ID + + * ALGO_ID + SIG_LEN + SIG. After validation the device sets + * pluginType to ERC721, ERC1155 or EXTERNAL and caches the + * (contract, selector, chain_id) tuple that eth_plugin_perform_init + * later cross-checks (the cross-check fires app_exit on mismatch — + * already covered in test_eth_plugin_handler). + * + * A faulty parser here lets a hostile host register an arbitrary + * plugin alias for any (contract, selector) and the device will + * display the matching plugin UI for whatever bytes the user signs + * next. + * + * The PROD key restriction (only ERC721/ERC1155 can be registered + * with the PROD signing key, not arbitrary external plugins) is the + * load-bearing defense against an attacker repurposing the + * production signing key. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" // handle_set_plugin +#include "cmd_set_plugin.h" +#include "wraps.h" + +// ============================================================================= +// Globals +// ============================================================================= + +// ============================================================================= +// Controllable stubs +// ============================================================================= + +static bool g_chain_compatible_ret = true; +bool __wrap_app_compatible_with_chain_id(const uint64_t *chain_id) { + (void) chain_id; + return g_chain_compatible_ret; +} + +// check_signature_with_pubkey is wrapped in mocks/mock.c; state via +// g_sig_check_ret from wraps.h. + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + memset(&dataContext, 0, sizeof(dataContext)); + pluginType = PLUGIN_TYPE_NONE; + g_chain_compatible_ret = true; + g_sig_check_ret = true; + return 0; +} + +// ============================================================================= +// Binary payload builder +// ============================================================================= +// +// Layout (no TLV; flat binary): +// type(1) = 0x01 ETH_PLUGIN +// version(1) = 0x01 VERSION_1 +// name_len(1) +// name(name_len) +// contract_addr(20) +// selector(4) +// chain_id(8) BE +// key_id(1) = 0x02 PROD_PLUGIN_KEY (or 0x00 TEST) +// algo_id(1) = 0x01 ECC_SECG_P256K1__ECDSA_SHA_256 +// sig_len(1) +// sig(sig_len) + +typedef struct { + uint8_t type; + uint8_t version; + const char *name; + uint64_t chain_id; + uint8_t key_id; + uint8_t algo_id; + uint8_t sig_len; + // toggles + bool omit_after_header; // truncate after NAME_LEN + bool omit_sig_len_byte; // truncate before sig_len + bool omit_sig_bytes; // truncate inside sig +} s_opts; + +static const uint8_t g_contract[ADDRESS_LENGTH] = { + 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, + 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, +}; +static const uint8_t g_selector[SELECTOR_SIZE] = {0xDE, 0xAD, 0xBE, 0xEF}; + +static size_t build_payload(uint8_t *out, size_t out_size, s_opts opts) { + size_t off = 0; + out[off++] = opts.type; + out[off++] = opts.version; + size_t name_len = (opts.name != NULL) ? strlen(opts.name) : 0; + out[off++] = (uint8_t) name_len; + if (opts.omit_after_header) { + assert_true(off <= out_size); + return off; + } + if (name_len > 0) { + memcpy(out + off, opts.name, name_len); + off += name_len; + } + memcpy(out + off, g_contract, ADDRESS_LENGTH); + off += ADDRESS_LENGTH; + memcpy(out + off, g_selector, SELECTOR_SIZE); + off += SELECTOR_SIZE; + // chain_id BE 8 bytes + for (int i = 7; i >= 0; --i) { + out[off++] = (uint8_t) ((opts.chain_id >> (i * 8)) & 0xFF); + } + out[off++] = opts.key_id; + out[off++] = opts.algo_id; + if (opts.omit_sig_len_byte) { + assert_true(off <= out_size); + return off; + } + out[off++] = opts.sig_len; + size_t sig_to_write = opts.omit_sig_bytes ? 0 : opts.sig_len; + memset(out + off, 0x42, sig_to_write); + off += sig_to_write; + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Tests +// ============================================================================= + +static void test_happy_path_erc721_registers(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + uint16_t sw = handle_set_plugin(payload, (uint8_t) len); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(pluginType, PLUGIN_TYPE_ERC721); + assert_string_equal(dataContext.tokenContext.pluginName, "ERC721"); + assert_memory_equal(dataContext.tokenContext.contractAddress, g_contract, ADDRESS_LENGTH); + assert_memory_equal(dataContext.tokenContext.methodSelector, g_selector, SELECTOR_SIZE); + assert_int_equal(dataContext.tokenContext.pluginChainId, 1); +} + +static void test_happy_path_erc1155_registers(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC1155", + .chain_id = 137, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + uint16_t sw = handle_set_plugin(payload, (uint8_t) len); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(pluginType, PLUGIN_TYPE_ERC1155); + assert_int_equal(dataContext.tokenContext.pluginChainId, 137); +} + +static void test_header_too_small_rejected(void **state) { + (void) state; + uint8_t payload[8] = {0x01, 0x01, 0x06}; // only HEADER_SIZE bytes + uint16_t sw = handle_set_plugin(payload, 3); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_unsupported_type_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0xFF, // not ETH_PLUGIN + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_unsupported_version_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x07, // not VERSION_1 + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_data_too_small_for_payload_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, .version = 0x01, .name = "ERC721", .omit_after_header = true}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_plugin_name_too_long_rejected(void **state) { + (void) state; + // pluginName buffer size is PLUGIN_ID_LENGTH = 31 (or similar) — pick + // a length safely larger. + uint8_t payload[256]; + char long_name[64]; + memset(long_name, 'X', sizeof(long_name) - 1); + long_name[sizeof(long_name) - 1] = '\0'; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = long_name, + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_incompatible_chain_id_rejected(void **state) { + (void) state; + g_chain_compatible_ret = false; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 99999, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_wrong_key_id_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x00, // TEST key not allowed without HAVE_NFT_STAGING_KEY + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_wrong_algo_id_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x07, // not SECG_P256K1+SHA256 + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_signature_length_below_minimum_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 66}; // < MIN_DER_SIG_SIZE=67 + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_signature_length_above_maximum_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 73}; // > MAX_DER_SIG_SIZE=72 + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_data_too_short_for_signature_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70, + .omit_sig_bytes = true}; // declare 70 but provide 0 + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_signature_check_failure_rejects(void **state) { + (void) state; + g_sig_check_ret = false; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "ERC721", + .chain_id = 1, + .key_id = 0x02, + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +// The PROD key is restricted to ERC721/ERC1155: registering an +// arbitrary external plugin name with the PROD key must be rejected. +static void test_prod_key_with_external_plugin_rejected(void **state) { + (void) state; + uint8_t payload[256]; + s_opts opts = {.type = 0x01, + .version = 0x01, + .name = "Uniswap", // neither ERC721 nor ERC1155 + .chain_id = 1, + .key_id = 0x02, // PROD + .algo_id = 0x01, + .sig_len = 70}; + size_t len = build_payload(payload, sizeof(payload), opts); + assert_int_equal(handle_set_plugin(payload, (uint8_t) len), SWO_INCORRECT_DATA); +} + +static void test_set_swap_with_calldata_plugin_type(void **state) { + (void) state; + pluginType = PLUGIN_TYPE_NONE; + set_swap_with_calldata_plugin_type(); + assert_int_equal(pluginType, PLUGIN_TYPE_SWAP_WITH_CALLDATA); +} + +// Data large enough to clear the dataLength <= HEADER_SIZE guard (line 87) +// but too short to hold the full payload (line 112). Constructed by hand +// because build_payload's `omit_after_header` writes only 3 bytes -- which +// stops at the earlier HEADER_SIZE check. +static void test_data_too_small_for_full_payload_rejected(void **state) { + (void) state; + uint8_t payload[16] = {0}; + payload[0] = 0x01; // type ETH_PLUGIN + payload[1] = 0x01; // version VERSION_1 + payload[2] = 6; // plugin name length + memcpy(payload + 3, "ERC721", 6); + // Total length 9: > HEADER_SIZE=3 but << expected payloadSize (~43). + assert_int_equal(handle_set_plugin(payload, 9), SWO_INCORRECT_DATA); +} + +// Payload exactly covers up to ALGORITHM_ID but truncates BEFORE the +// signature-length byte (line 172-174 check fires). +static void test_data_too_short_for_sig_length_byte_rejected(void **state) { + (void) state; + uint8_t payload[64] = {0}; + payload[0] = 0x01; // type + payload[1] = 0x01; // version + payload[2] = 6; // name length + memcpy(payload + 3, "ERC721", 6); + // ADDRESS (20) + SELECTOR (4) + CHAIN_ID (8) + KEY_ID (1) + ALGO_ID (1) + // chain_id = 1 (big-endian), key_id = PROD (0x02), algo = 0x01. + size_t off = 9; + memset(payload + off, 0xAB, 20); // address + off += 20; + memset(payload + off, 0xCD, 4); // selector + off += 4; + payload[off + 7] = 1; // chain_id big-endian = 1 + off += 8; + payload[off++] = 0x02; // PROD key_id + payload[off++] = 0x01; // algo + // payloadSize complete (43 bytes). dataLength = 43, no room for sig_len. + assert_int_equal(handle_set_plugin(payload, (uint8_t) off), SWO_INCORRECT_DATA); +} + +// EXTERNAL-plugin BEGIN_TRY block is covered by a dedicated target +// test_cmd_set_plugin_staging (HAVE_NFT_STAGING_KEY defined so the +// non-PROD key is accepted -- the PROD key forbids non-NFT plugins). + +static void test_rejected_when_app_not_idle(void **state) { + (void) state; + uint8_t payload[8] = {0x01, 0x01, 0x06}; + appState = APP_STATE_SIGNING_TX; + uint16_t sw = handle_set_plugin(payload, 3); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + assert_int_equal(pluginType, PLUGIN_TYPE_NONE); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_rejected_when_app_not_idle, reset), + cmocka_unit_test_setup(test_happy_path_erc721_registers, reset), + cmocka_unit_test_setup(test_happy_path_erc1155_registers, reset), + cmocka_unit_test_setup(test_header_too_small_rejected, reset), + cmocka_unit_test_setup(test_unsupported_type_rejected, reset), + cmocka_unit_test_setup(test_unsupported_version_rejected, reset), + cmocka_unit_test_setup(test_data_too_small_for_payload_rejected, reset), + cmocka_unit_test_setup(test_plugin_name_too_long_rejected, reset), + cmocka_unit_test_setup(test_incompatible_chain_id_rejected, reset), + cmocka_unit_test_setup(test_wrong_key_id_rejected, reset), + cmocka_unit_test_setup(test_wrong_algo_id_rejected, reset), + cmocka_unit_test_setup(test_signature_length_below_minimum_rejected, reset), + cmocka_unit_test_setup(test_signature_length_above_maximum_rejected, reset), + cmocka_unit_test_setup(test_data_too_short_for_signature_rejected, reset), + cmocka_unit_test_setup(test_signature_check_failure_rejects, reset), + cmocka_unit_test_setup(test_prod_key_with_external_plugin_rejected, reset), + cmocka_unit_test_setup(test_set_swap_with_calldata_plugin_type, reset), + cmocka_unit_test_setup(test_data_too_small_for_full_payload_rejected, reset), + cmocka_unit_test_setup(test_data_too_short_for_sig_length_byte_rejected, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_set_plugin_staging.c b/tests/unit/src/test_cmd_set_plugin_staging.c new file mode 100644 index 0000000000..1ed8a62b16 --- /dev/null +++ b/tests/unit/src/test_cmd_set_plugin_staging.c @@ -0,0 +1,124 @@ +/** + * @file test_cmd_set_plugin_staging.c + * @brief PLUGIN_TYPE_EXTERNAL branch of cmd_set_plugin.c. + * + * cmd_set_plugin's main test target (test_cmd_set_plugin) is compiled + * without HAVE_NFT_STAGING_KEY, which fixes valid_keyId to the + * production key. Under that build, every payload that names a non- + * NFT plugin (i.e. anything that would resolve to PLUGIN_TYPE_EXTERNAL) + * gets rejected at the PROD-key-vs-NFT guard before reaching the + * BEGIN_TRY / os_lib_call(CHECK_PRESENCE) / END_TRY block. + * + * To exercise that block we need valid_keyId == TEST_PLUGIN_KEY, which + * the source toggles via HAVE_NFT_STAGING_KEY. This dedicated target + * defines the macro and pins the EXTERNAL plugin happy path -- the + * device receives a signed registration for a plugin named "Uniswap" + * with the TEST key, get_plugin_type resolves it to EXTERNAL, the + * device hands off to os_lib_call to check that the matching external + * app is installed, and the handler returns SWO_SUCCESS. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "cmd_set_plugin.h" +#include "wraps.h" + +// ============================================================================= +// Stubs (mirror test_cmd_set_plugin.c) +// ============================================================================= + +bool __wrap_app_compatible_with_chain_id(const uint64_t *chain_id) { + (void) chain_id; + return true; +} + +// ============================================================================= +// Binary payload builder (same layout as cmd_set_plugin.c expects) +// ============================================================================= + +#define ADDRESS_LENGTH 20 +#define SELECTOR_SIZE 4 + +static size_t build_external_payload(uint8_t *out, + size_t out_size, + const char *name, + uint64_t chain_id, + uint8_t key_id, + uint8_t sig_len) { + size_t off = 0; + out[off++] = 0x01; // type ETH_PLUGIN + out[off++] = 0x01; // version VERSION_1 + size_t name_len = strlen(name); + out[off++] = (uint8_t) name_len; + memcpy(out + off, name, name_len); + off += name_len; + memset(out + off, 0xAB, ADDRESS_LENGTH); + off += ADDRESS_LENGTH; + memset(out + off, 0xDE, SELECTOR_SIZE); + off += SELECTOR_SIZE; + // chain_id BE 8 bytes + for (int i = 7; i >= 0; --i) { + out[off++] = (uint8_t) ((chain_id >> (i * 8)) & 0xFF); + } + out[off++] = key_id; + out[off++] = 0x01; // algo ECC_SECG_P256K1__ECDSA_SHA_256 + out[off++] = sig_len; + memset(out + off, 0x42, sig_len); + off += sig_len; + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + memset(&dataContext, 0, sizeof(dataContext)); + pluginType = PLUGIN_TYPE_NONE; + g_sig_check_ret = true; + return 0; +} + +// ============================================================================= +// EXTERNAL plugin path +// ============================================================================= + +static void test_external_plugin_check_presence_succeeds(void **state) { + (void) state; + // TEST_PLUGIN_KEY (0x00) accepted because HAVE_NFT_STAGING_KEY is on. + // Plugin name "Uniswap" resolves to PLUGIN_TYPE_EXTERNAL. + uint8_t payload[256]; + size_t len = build_external_payload(payload, + sizeof(payload), + "Uniswap", + /*chain_id*/ 1, + /*key_id*/ 0x00, + /*sig_len*/ 70); + uint16_t sw = handle_set_plugin(payload, (uint8_t) len); + // The BEGIN_TRY / os_lib_call body uses the BOLOS exception stack. + // Under our mock.c stubs (try_context_set/get -> NULL, os_lib_call -> + // no-op), the TRY runs to completion -> SWO_SUCCESS. If a future + // hardening of the exception machinery makes the os_lib_call throw, + // CATCH_OTHER will fire and return SWO_FILE_NOT_FOUND. Accept either, + // the important thing is that the EXTERNAL block is traversed. + assert_true(sw == SWO_SUCCESS || sw == SWO_FILE_NOT_FOUND); + assert_int_equal(pluginType, PLUGIN_TYPE_EXTERNAL); +} + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_external_plugin_check_presence_succeeds, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_sign_message.c b/tests/unit/src/test_cmd_sign_message.c new file mode 100644 index 0000000000..05536b71c5 --- /dev/null +++ b/tests/unit/src/test_cmd_sign_message.c @@ -0,0 +1,380 @@ +/** + * @file test_cmd_sign_message.c + * @brief Unit tests for the EIP-191 "personal_sign" handler at + * src/features/sign_message/cmd_sign_message.c. + * + * EIP-191 is the human-readable signing path: the device prepends the + * "\x19Ethereum Signed Message:\n" prefix to the host-supplied + * payload, hashes the concatenation with keccak-256, and signs the + * resulting digest. The host streams the payload across multiple APDU + * chunks (P1=FIRST then P1=MORE). A bug in this state machine would: + * - let the host start a fresh signing flow while another command is + * mid-flight, + * - let an over-long chunk write past the heap-allocated payload + * buffer, + * - leave allocated state behind after an error (memory leak / use- + * after-free hazard), + * - mis-detect a hex payload as ASCII (or vice versa) and mislead the + * user about what they are signing. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "sign_message.h" +#include "cx_errors.h" +#include "wraps.h" + +// ============================================================================= +// Globals required by linked translation units +// ============================================================================= + +extern cx_sha3_t *g_msg_hash_ctx; + +// ============================================================================= +// Wraps / stubs +// ============================================================================= + +// parseBip32 + cx_keccak_init_no_throw are wrapped in mocks/mock.c; +// drive them through g_parsebip32_force_null + g_keccak_init_ret +// from wraps.h. + +static cx_err_t g_cx_hash_ret = CX_OK; +static size_t g_cx_hash_calls = 0; +cx_err_t __wrap_cx_hash_no_throw(void *ctx, + uint32_t mode, + const uint8_t *in, + size_t in_len, + uint8_t *out, + size_t out_len) { + (void) ctx; + (void) mode; + (void) in; + (void) in_len; + (void) out; + (void) out_len; + g_cx_hash_calls++; + return g_cx_hash_ret; +} + +// Strong override of mocks/mock.c's __wrap_finalize_hash: takes +// `void *ctx` (vs cx_hash_t *) and fills with 0xAB so the assert +// path can match a known digest. g_finalize_hash_ret lives in +// wraps.h. +bool __wrap_finalize_hash(void *ctx, uint8_t *out, size_t out_len) { + (void) ctx; + memset(out, 0xAB, out_len); + return g_finalize_hash_ret; +} + +// UI hooks — record invocations. +static int g_ui_idle_calls = 0; +void ui_idle(void) { + g_ui_idle_calls++; +} + +static int g_ui_191_calls = 0; +static char g_ui_191_display[1024]; +void ui_191_start(const char *display_buffer) { + g_ui_191_calls++; + if (display_buffer != NULL) { + strncpy(g_ui_191_display, display_buffer, sizeof(g_ui_191_display) - 1); + g_ui_191_display[sizeof(g_ui_191_display) - 1] = '\0'; + } +} + +// ============================================================================= +// APDU builder +// ============================================================================= +// +// Layout of a FIRST APDU: +// [bip32_len:1] [bip32_path:N*4] [msg_length_BE:4] [first_chunk_bytes] +// Subsequent (MORE) APDUs carry raw payload bytes. + +static size_t build_first_apdu(uint8_t *out, + size_t out_size, + uint32_t msg_length, + const uint8_t *first_chunk, + uint8_t first_chunk_len) { + size_t off = 0; + out[off++] = 5; // BIP-32 path length (m/44'/60'/0'/0/0) + for (int i = 0; i < 5; i++) { + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + } + // 4-byte BE msg_length + out[off++] = (uint8_t) (msg_length >> 24); + out[off++] = (uint8_t) (msg_length >> 16); + out[off++] = (uint8_t) (msg_length >> 8); + out[off++] = (uint8_t) (msg_length); + if (first_chunk != NULL && first_chunk_len > 0) { + memcpy(out + off, first_chunk, first_chunk_len); + off += first_chunk_len; + } + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + // The handler self-cleans on most error paths via set_idle(), but + // tests that crash mid-flight may leak; flush explicitly. + message_cleanup(); + if (g_msg_hash_ctx != NULL) { + free(g_msg_hash_ctx); + g_msg_hash_ctx = NULL; + } + appState = APP_STATE_IDLE; + g_parsebip32_force_null = false; + g_keccak_init_ret = CX_OK; + g_cx_hash_ret = CX_OK; + g_cx_hash_calls = 0; + g_finalize_hash_ret = true; + g_ui_idle_calls = 0; + g_ui_191_calls = 0; + memset(g_ui_191_display, 0, sizeof(g_ui_191_display)); + memset(&tmpCtx, 0, sizeof(tmpCtx)); + memset(&strings, 0, sizeof(strings)); + return 0; +} + +// ============================================================================= +// Tests — entry-point dispatcher +// ============================================================================= + +static void test_p1_first_rejected_when_not_idle(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + assert_int_equal(g_ui_idle_calls, 0); +} + +static void test_p1_unknown_rejected(void **state) { + (void) state; + uint8_t data[8] = {0}; + uint16_t sw = handle_sign_personal_message(0x42, data, sizeof(data)); + assert_int_equal(sw, SWO_WRONG_P1_P2); + assert_int_equal(g_ui_idle_calls, 1); +} + +static void test_p1_more_without_prior_first_rejected(void **state) { + (void) state; + uint8_t data[8] = {0}; + // appState is IDLE — no prior FIRST happened. + uint16_t sw = handle_sign_personal_message(P1_MORE, data, sizeof(data)); + assert_int_equal(sw, SWO_INCORRECT_DATA); + assert_int_equal(g_ui_idle_calls, 1); +} + +// ============================================================================= +// Tests — first_apdu_data +// ============================================================================= + +static void test_first_bad_bip32_returns_incorrect_data(void **state) { + (void) state; + g_parsebip32_force_null = true; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_first_truncated_before_msg_length_rejected(void **state) { + (void) state; + // bip32 path consumes 21 bytes, no msg_length follows. + uint8_t data[21]; + data[0] = 5; + memset(data + 1, 0, 20); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, sizeof(data)); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_first_keccak_init_failure_propagates(void **state) { + (void) state; + g_keccak_init_ret = CX_INVALID_PARAMETER; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + // cx_err_t is uint32_t but handle_sign_personal_message returns + // uint16_t — the SDK error truncates to its low 16 bits. + assert_int_equal(sw, (uint16_t) CX_INVALID_PARAMETER); +} + +// ============================================================================= +// Tests — happy path +// ============================================================================= + +static void test_single_chunk_ascii_starts_ui(void **state) { + (void) state; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 5, (uint8_t *) "hello", 5); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + // Single-chunk path: the handler finalizes and hands off to the UI; + // it returns NO_RESPONSE so the dispatcher does not auto-reply. + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_191_calls, 1); + assert_string_equal(g_ui_191_display, "hello"); +} + +static void test_single_chunk_hex_uses_0x_prefix(void **state) { + (void) state; + // 0x01 is non-printable & non-space, so the handler must switch to + // the hex display path. + uint8_t msg[3] = {0x01, 0x02, 0x03}; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 3, msg, 3); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_string_equal(g_ui_191_display, "0x010203"); +} + +static void test_multichunk_completes_on_last_chunk(void **state) { + (void) state; + // FIRST sends 3 bytes, MORE sends remaining 4. msg_length = 7. + uint8_t first[64]; + size_t flen = build_first_apdu(first, sizeof(first), 7, (uint8_t *) "abc", 3); + uint16_t sw = handle_sign_personal_message(P1_FIRST, first, (uint8_t) flen); + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(g_ui_191_calls, 0); + + sw = handle_sign_personal_message(P1_MORE, (uint8_t *) "defg", 4); + assert_int_equal(sw, SWO_NO_RESPONSE); + assert_int_equal(g_ui_191_calls, 1); + assert_string_equal(g_ui_191_display, "abcdefg"); +} + +static void test_chunk_overflow_rejected(void **state) { + (void) state; + // Declare msg_length = 4; FIRST already delivered 2 bytes; sending + // 3 more (total 5) must trip the overflow guard. + uint8_t first[64]; + size_t flen = build_first_apdu(first, sizeof(first), 4, (uint8_t *) "ab", 2); + uint16_t sw = handle_sign_personal_message(P1_FIRST, first, (uint8_t) flen); + assert_int_equal(sw, SWO_SUCCESS); + + sw = handle_sign_personal_message(P1_MORE, (uint8_t *) "cde", 3); + assert_int_equal(sw, SWO_INCORRECT_DATA); + assert_int_equal(g_ui_idle_calls, 1); + assert_int_equal(g_ui_191_calls, 0); +} + +static void test_final_finalize_failure_resets_state(void **state) { + (void) state; + g_finalize_hash_ret = false; + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + // CX_INTERNAL_ERROR is the default initial value of `error` in + // final_process(); since finalize_hash failed it jumps straight to + // `end` without overwriting. The 32-bit SDK error truncates to its + // low 16 bits on the way out. + assert_int_equal(sw, (uint16_t) CX_INTERNAL_ERROR); + assert_int_equal(g_ui_idle_calls, 1); + assert_int_equal(g_ui_191_calls, 0); +} + +static void test_cleanup_after_p1_first_when_busy(void **state) { + (void) state; + // Set up a successful single-chunk run, then send P1_FIRST again + // while still in SIGNING_MESSAGE state — handler must reject and + // wipe state. + appState = APP_STATE_SIGNING_TX; // simulate a different ongoing flow + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + // After the rejection appState was NOT bumped to SIGNING_MESSAGE. + assert_int_equal(g_ui_idle_calls, 0); +} + +static void test_message_cleanup_safe_when_nothing_allocated(void **state) { + (void) state; + // Calling cleanup with no active context must be a no-op rather + // than crash. (signMsgCtx is private; verify by behaviour: a fresh + // FIRST after cleanup should succeed cleanly.) + message_cleanup(); + message_cleanup(); + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 4, (uint8_t *) "ping", 4); + uint16_t sw = handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(sw, SWO_NO_RESPONSE); +} + +static void test_hash_is_keccak_seeded_with_prefix(void **state) { + (void) state; + // The "\x19Ethereum Signed Message:\n" header must be fed + // to keccak before any payload byte. We can't observe the hash + // value directly (finalize_hash is wrapped), but we can pin the + // number of cx_hash_no_throw invocations on the FIRST path: one + // for SIGN_MAGIC, one for the decimal length string. The third + // invocation comes from process_data() consuming the inline chunk. + uint8_t data[64]; + size_t len = build_first_apdu(data, sizeof(data), 5, (uint8_t *) "hello", 5); + (void) handle_sign_personal_message(P1_FIRST, data, (uint8_t) len); + assert_int_equal(g_cx_hash_calls, 3); + // strings.tmp.tmp must contain the decimal representation of the + // message length so it can be fed to the hash. + assert_string_equal(strings.tmp.tmp, "5"); +} + +// ============================================================================= +// P1=MORE while SIGNING but signMsgCtx already freed +// ============================================================================= +// The handler is called with P1_MORE after appState has been bumped to +// SIGNING_MESSAGE (so the earlier guard at line 244 doesn't fire), but +// signMsgCtx is NULL -- e.g. a previous chunk failed and called +// message_cleanup() which freed it without resetting appState. The +// gate at line 251-254 must catch this and refuse rather than +// dereferencing NULL. + +static void test_p1_more_with_null_ctx_rejected(void **state) { + (void) state; + appState = APP_STATE_SIGNING_MESSAGE; + // signMsgCtx left NULL by reset() (message_cleanup() runs there). + uint8_t data[8] = {0}; + uint16_t sw = handle_sign_personal_message(P1_MORE, data, sizeof(data)); + assert_int_equal(sw, SWO_INCORRECT_DATA); + assert_int_equal(g_ui_idle_calls, 1); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_p1_first_rejected_when_not_idle, reset), + cmocka_unit_test_setup(test_p1_unknown_rejected, reset), + cmocka_unit_test_setup(test_p1_more_without_prior_first_rejected, reset), + cmocka_unit_test_setup(test_first_bad_bip32_returns_incorrect_data, reset), + cmocka_unit_test_setup(test_first_truncated_before_msg_length_rejected, reset), + cmocka_unit_test_setup(test_first_keccak_init_failure_propagates, reset), + cmocka_unit_test_setup(test_single_chunk_ascii_starts_ui, reset), + cmocka_unit_test_setup(test_single_chunk_hex_uses_0x_prefix, reset), + cmocka_unit_test_setup(test_multichunk_completes_on_last_chunk, reset), + cmocka_unit_test_setup(test_chunk_overflow_rejected, reset), + cmocka_unit_test_setup(test_final_finalize_failure_resets_state, reset), + cmocka_unit_test_setup(test_cleanup_after_p1_first_when_busy, reset), + cmocka_unit_test_setup(test_message_cleanup_safe_when_nothing_allocated, reset), + cmocka_unit_test_setup(test_hash_is_keccak_seeded_with_prefix, reset), + cmocka_unit_test_setup(test_p1_more_with_null_ctx_rejected, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_cmd_sign_tx.c b/tests/unit/src/test_cmd_sign_tx.c new file mode 100644 index 0000000000..a1ad7efbe7 --- /dev/null +++ b/tests/unit/src/test_cmd_sign_tx.c @@ -0,0 +1,451 @@ +/** + * @file test_cmd_sign_tx.c + * @brief Unit tests for the typed-tx prefix dispatcher inside the + * sign_tx APDU handler at + * src/features/sign_tx/cmd_sign_tx.c. + * + * cmd_sign_tx is the entry point for "sign raw transaction" APDUs. + * P2 selects the mode (BASIC / STORE / START_FLOW), P1 selects the + * chunk position (FIRST / MORE). On the FIRST chunk the device + * parses a BIP-32 path, allocates a fresh keccak context, and looks + * at the first byte of the payload to decide which transaction + * format follows: + * - 0x01 = EIP-2930 (access list), + * - 0x02 = EIP-1559 (priority fee), + * - 0x04 = EIP-7702 (auth list), + * - 0x00..0x7F other = unsupported typed tx (must reject), + * - 0x80..0xFF = legacy RLP list (no type prefix consumed). + * + * Routing the wrong format here would mis-parse subsequent fields, + * so the device might display a value / destination / chainID that + * doesn't match the bytes actually signed. Pin every branch. + * + * The handler also resets the app context on any non-IDLE entry so + * a stale partial flow cannot bleed into a new one (defense in + * depth against re-entrancy on a single APDU pipe). + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "apdu_constants.h" +#include "feature_sign_tx.h" +#include "eth_ustream.h" +#include "calldata.h" +#include "network.h" +#include "wraps.h" + +extern cx_sha3_t *g_tx_hash_ctx; + +// ============================================================================= +// Globals required by linked translation units +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// parseBip32 + cx_keccak_init_no_throw are wrapped in mocks/mock.c; +// drive them through g_parsebip32_force_null + g_keccak_init_ret +// from wraps.h. + +static int g_reset_app_calls = 0; +void __wrap_reset_app_context(void) { + g_reset_app_calls++; +} + +static cx_err_t g_cx_hash_ret = CX_OK; +cx_err_t __wrap_cx_hash_no_throw(cx_hash_t *hash, + uint32_t mode, + const uint8_t *in, + size_t in_len, + uint8_t *out, + size_t out_len) { + (void) hash; + (void) mode; + (void) in; + (void) in_len; + (void) out; + (void) out_len; + return g_cx_hash_ret; +} + +// finalize_parsing lives in logic_sign_tx.c which we don't link. Stub +// it out so handle_parsing_status() reaches a deterministic outcome +// on the USTREAM_FINISHED branch we exercise via short payloads. +uint16_t __wrap_finalize_parsing(const txContext_t *context) { + (void) context; + return SWO_SUCCESS; +} + +// custom_processor is in logic_sign_tx.c too. The eth_ustream parser +// calls it on every field; return CUSTOM_NOT_HANDLED so the standard +// dispatcher takes over. +customStatus_e __wrap_custom_processor(txContext_t *context) { + (void) context; + return CUSTOM_NOT_HANDLED; +} + +// ============================================================================= +// Stubs — symbols referenced by cmd_sign_tx.c that we don't exercise +// ============================================================================= + +bool validate_instruction_hash(void) { + return true; +} +bool process_empty_txs_after(void) { + return true; +} +size_t get_tx_ctx_count(void) { + return 1; +} +bool ui_gcs(void) { + return true; +} +void ui_gcs_cleanup(void) { +} + +bool tx_ctx_init(s_calldata *calldata, + const uint8_t *from, + const uint8_t *to, + const uint8_t *amount, + const uint64_t *chain_id) { + (void) calldata; + (void) from; + (void) to; + (void) amount; + (void) chain_id; + return true; +} +s_calldata *calldata_init(size_t size, const uint8_t *selector) { + (void) size; + (void) selector; + return NULL; +} +bool calldata_append(s_calldata *calldata, const uint8_t *buffer, size_t size) { + (void) calldata; + (void) buffer; + (void) size; + return true; +} +void calldata_delete(s_calldata *node) { + (void) node; +} + +// ============================================================================= +// APDU builder — FIRST chunk has BIP-32 path then optional tx_type byte +// ============================================================================= + +static size_t build_first(uint8_t *out, + size_t out_size, + uint8_t tx_type_or_first_rlp, + bool include_tx_byte) { + size_t off = 0; + out[off++] = 5; // BIP-32 path length + for (int i = 0; i < 5; i++) { + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + out[off++] = 0; + } + if (include_tx_byte) { + out[off++] = tx_type_or_first_rlp; + } + assert_true(off <= out_size); + return off; +} + +// ============================================================================= +// Fixture +// ============================================================================= + +static int reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + if (g_tx_hash_ctx != NULL) { + free(g_tx_hash_ctx); + g_tx_hash_ctx = NULL; + } + memset(&txContext, 0, sizeof(txContext)); + memset(&tmpContent, 0, sizeof(tmpContent)); + memset(&dataContext, 0, sizeof(dataContext)); + g_parsebip32_force_null = false; + g_keccak_init_ret = CX_OK; + g_cx_hash_ret = CX_OK; + g_reset_app_calls = 0; + return 0; +} + +// ============================================================================= +// Tests — P2 / P1 dispatcher +// ============================================================================= + +static void test_unknown_p2_rejected(void **state) { + (void) state; + uint8_t data[1] = {0}; + uint16_t sw = handle_sign(P1_FIRST, /*p2=*/0x42, data, 1); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_basic_unknown_p1_rejected(void **state) { + (void) state; + uint8_t data[1] = {0}; + uint16_t sw = handle_sign(/*p1=*/0x42, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_WRONG_P1_P2); +} + +static void test_p1_more_without_first_rejected(void **state) { + (void) state; + // appState = IDLE, no prior FIRST. P1=MORE must be refused. + uint8_t data[1] = {0}; + uint16_t sw = handle_sign(P1_MORE, /*p2=*/0, data, 1); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); +} + +static void test_start_flow_without_signing_rejected(void **state) { + (void) state; + uint8_t data[1] = {0}; + uint16_t sw = handle_sign(0, /*p2=*/2, data, 0); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); +} + +static void test_start_flow_with_nonzero_length_rejected(void **state) { + (void) state; + appState = APP_STATE_SIGNING_TX; + uint8_t data[1] = {0}; + uint16_t sw = handle_sign(0, /*p2=*/2, data, 1); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +// ============================================================================= +// Tests — handle_first_sign_chunk (typed-tx prefix) +// ============================================================================= + +static void test_first_bad_bip32_rejected(void **state) { + (void) state; + g_parsebip32_force_null = true; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_first_no_tx_byte_after_bip32_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + // BIP-32 path only, no follow-on byte. + size_t len = build_first(apdu, sizeof(apdu), 0, /*include_tx_byte=*/false); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_first_rejected_when_app_not_idle(void **state) { + (void) state; + appState = APP_STATE_SIGNING_MESSAGE; // stale + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_COMMAND_NOT_ALLOWED); + assert_int_equal(g_reset_app_calls, 0); + assert_int_equal(appState, APP_STATE_SIGNING_MESSAGE); +} + +static void test_first_idle_does_not_reset(void **state) { + (void) state; + appState = APP_STATE_IDLE; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(g_reset_app_calls, 0); + assert_int_equal(appState, APP_STATE_SIGNING_TX); +} + +static void test_typed_tx_eip2930(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x01, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + // Handler returns NO_RESPONSE on the FIRST chunk path that + // continues into process_tx with the remaining 0 bytes (which + // reports USTREAM_PROCESSING → SWO_SUCCESS). + assert_int_equal(sw, SWO_SUCCESS); + assert_int_equal(txContext.txType, EIP2930); +} + +static void test_typed_tx_eip1559(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(txContext.txType, EIP1559); +} + +static void test_typed_tx_eip7702(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x04, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(txContext.txType, EIP7702); +} + +static void test_typed_tx_unsupported_in_range_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + // 0x03 sits inside the typed-tx range (≤ 0x7F) but is not one of + // the three accepted types. Must be rejected, not silently parsed. + size_t len = build_first(apdu, sizeof(apdu), 0x03, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_MEMORY_WRITE_ERROR); +} + +static void test_typed_tx_boundary_0x7F_rejected(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x7F, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_MEMORY_WRITE_ERROR); +} + +static void test_legacy_byte_0x80_routes_to_legacy(void **state) { + (void) state; + uint8_t apdu[64]; + // 0x80 is the RLP "empty string" / first byte of a tiny RLP list; + // it is > MAX_TX_TYPE (0x7F) so the handler must NOT consume it + // as a prefix and instead set txType = LEGACY. + size_t len = build_first(apdu, sizeof(apdu), 0x80, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(txContext.txType, LEGACY); +} + +static void test_legacy_byte_0xC0_routes_to_legacy(void **state) { + (void) state; + uint8_t apdu[64]; + // 0xC0 is the canonical RLP list header for an empty list. + size_t len = build_first(apdu, sizeof(apdu), 0xC0, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(txContext.txType, LEGACY); +} + +static void test_legacy_byte_0xFF_routes_to_legacy(void **state) { + (void) state; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0xFF, true); + (void) handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(txContext.txType, LEGACY); +} + +static void test_typed_tx_cx_hash_failure_rejected(void **state) { + (void) state; + g_cx_hash_ret = CX_INVALID_PARAMETER; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +static void test_init_tx_failure_rejected(void **state) { + (void) state; + g_keccak_init_ret = CX_INVALID_PARAMETER; + uint8_t apdu[64]; + size_t len = build_first(apdu, sizeof(apdu), 0x02, true); + uint16_t sw = handle_sign(P1_FIRST, 0, apdu, (uint8_t) len); + assert_int_equal(sw, SWO_INCORRECT_DATA); +} + +// ============================================================================= +// handle_parsing_status (non-static helper) -- per-status dispatch +// ============================================================================= + +uint16_t handle_parsing_status(parserStatus_e status); + +static void test_handle_parsing_status_suspended_returns_no_response(void **state) { + (void) state; + // USTREAM_SUSPENDED -> sw stays SWO_NO_RESPONSE (the host will send + // the next chunk). + assert_int_equal(handle_parsing_status(USTREAM_SUSPENDED), SWO_NO_RESPONSE); +} + +static void test_handle_parsing_status_processing_returns_success(void **state) { + (void) state; + assert_int_equal(handle_parsing_status(USTREAM_PROCESSING), SWO_SUCCESS); +} + +static void test_handle_parsing_status_finished_delegates_to_finalize(void **state) { + (void) state; + // USTREAM_FINISHED -> finalize_parsing(&txContext). Our local wrap + // returns SWO_NO_RESPONSE (deferred reply) on a happy fixture. + uint16_t sw = handle_parsing_status(USTREAM_FINISHED); + // Any value the real finalize_parsing emitted is fine; the point is + // the branch ran. The SW itself depends on the test fixture (here + // a default-zeroed txContext likely lands on SWO_INCORRECT_DATA via + // the pre-EIP155 legacy gate). + (void) sw; +} + +static void test_handle_parsing_status_fault_non_swap_returns_incorrect_data(void **state) { + (void) state; + G_called_from_swap = false; + assert_int_equal(handle_parsing_status(USTREAM_FAULT), SWO_INCORRECT_DATA); +} + +static void test_handle_parsing_status_default_returns_incorrect_data(void **state) { + (void) state; + // Any value not in USTREAM_SUSPENDED / FINISHED / PROCESSING / + // FAULT lands on the safety default -> SWO_INCORRECT_DATA. + assert_int_equal(handle_parsing_status((parserStatus_e) 0x7F), SWO_INCORRECT_DATA); +} + +static void test_handle_parsing_status_fault_in_swap_triggers_app_exit(void **state) { + (void) state; + // USTREAM_FAULT inside a swap signing flow: the dispatcher MUST + // flag the swap as responded (G_swap_response_ready=true) AND emit + // send_swap_error_simple before app_exit so Exchange sees a + // definitive error code instead of a silent stall. + G_called_from_swap = true; + G_swap_response_ready = false; + EXPECT_NORETURN(handle_parsing_status(USTREAM_FAULT)); + assert_int_equal(g_noreturn_calls, 1); + assert_true(G_swap_response_ready); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_unknown_p2_rejected, reset), + cmocka_unit_test_setup(test_basic_unknown_p1_rejected, reset), + cmocka_unit_test_setup(test_p1_more_without_first_rejected, reset), + cmocka_unit_test_setup(test_start_flow_without_signing_rejected, reset), + cmocka_unit_test_setup(test_start_flow_with_nonzero_length_rejected, reset), + cmocka_unit_test_setup(test_first_bad_bip32_rejected, reset), + cmocka_unit_test_setup(test_first_no_tx_byte_after_bip32_rejected, reset), + cmocka_unit_test_setup(test_first_rejected_when_app_not_idle, reset), + cmocka_unit_test_setup(test_first_idle_does_not_reset, reset), + cmocka_unit_test_setup(test_typed_tx_eip2930, reset), + cmocka_unit_test_setup(test_typed_tx_eip1559, reset), + cmocka_unit_test_setup(test_typed_tx_eip7702, reset), + cmocka_unit_test_setup(test_typed_tx_unsupported_in_range_rejected, reset), + cmocka_unit_test_setup(test_typed_tx_boundary_0x7F_rejected, reset), + cmocka_unit_test_setup(test_legacy_byte_0x80_routes_to_legacy, reset), + cmocka_unit_test_setup(test_legacy_byte_0xC0_routes_to_legacy, reset), + cmocka_unit_test_setup(test_legacy_byte_0xFF_routes_to_legacy, reset), + cmocka_unit_test_setup(test_typed_tx_cx_hash_failure_rejected, reset), + cmocka_unit_test_setup(test_init_tx_failure_rejected, reset), + cmocka_unit_test_setup(test_handle_parsing_status_suspended_returns_no_response, reset), + cmocka_unit_test_setup(test_handle_parsing_status_processing_returns_success, reset), + cmocka_unit_test_setup(test_handle_parsing_status_finished_delegates_to_finalize, reset), + cmocka_unit_test_setup(test_handle_parsing_status_fault_non_swap_returns_incorrect_data, + reset), + cmocka_unit_test_setup(test_handle_parsing_status_default_returns_incorrect_data, reset), + cmocka_unit_test_setup(test_handle_parsing_status_fault_in_swap_triggers_app_exit, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_eip7002_plugin.c b/tests/unit/src/test_eip7002_plugin.c new file mode 100644 index 0000000000..78bbd06ac4 --- /dev/null +++ b/tests/unit/src/test_eip7002_plugin.c @@ -0,0 +1,481 @@ +/** + * @file test_eip7002_plugin.c + * @brief Unit tests for the EIP-7002 validator-withdrawal plugin at + * src/plugins/eip7002/eip7002_plugin.c. + * + * EIP-7002 lets a validator request a withdrawal from the consensus + * layer by calling the predeploy contract + * 0x00000961Ef480Eb55e80D19ad83579A64c007002 with a packed payload + * of `validator_pubkey || amount` (48 + 8 bytes). The plugin + * concatenates the selector + parameters into a single buffer and + * renders 1-3 screens depending on whether the tx carries a native + * value and whether the request is full-exit (amount=0) or partial. + * + * The interesting security gate is has_tx_value: the protocol fee + * is normally in the wei-to-gwei range, so showing a 1-wei screen + * on every legitimate request is noisy. The plugin hides the tx + * value as long as it stays below 1 gwei. That caps the attacker + * "hidden value" budget at dust ($0.000004 at $4000/ETH). Pin both + * sides of the threshold. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "eth_plugin_interface.h" +#include "eip7002_plugin.h" + +// ============================================================================= +// eip7002_context_t mirror (file-static in the source) +// ============================================================================= + +#define VALIDATOR_PUBKEY_SIZE 48 +#define AMOUNT_SIZE 8 +#define WITHDRAWAL_REQUEST_SIZE (VALIDATOR_PUBKEY_SIZE + AMOUNT_SIZE) + +typedef struct { + union { + uint8_t withdrawal_request[WITHDRAWAL_REQUEST_SIZE]; + struct { + uint8_t validator_pubkey[VALIDATOR_PUBKEY_SIZE]; + uint8_t raw_amount[AMOUNT_SIZE]; + }; + }; + uint8_t received; +} eip7002_context_t; + +// ============================================================================= +// Globals +// ============================================================================= + +extern uint64_t g_tx_chain_id; + +// ============================================================================= +// Wraps +// ============================================================================= + +// get_tx_chain_id is wrapped in mocks/mock.c (returns 1 by default). + +// get_displayable_ticker is wrapped in mocks/mock.c (defaults to "ETH"). + +static int g_amount_calls = 0; +bool __wrap_amountToString(const uint8_t *amount, + uint8_t amount_size, + uint8_t decimals, + const char *ticker, + char *out, + size_t out_size) { + (void) amount; + (void) amount_size; + (void) decimals; + g_amount_calls++; + snprintf(out, out_size, "FMT %s", ticker); + return true; +} + +// ============================================================================= +// Test helpers +// ============================================================================= + +static void run_init(eip7002_context_t *ctx, const uint8_t *selector, const txContent_t *tx) { + ethPluginInitContract_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.pluginContextLength = sizeof(*ctx); + msg.selector = selector; + msg.txContent = tx; + eip7002_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); +} + +static void feed_param(eip7002_context_t *ctx, const uint8_t *data, uint8_t size) { + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.parameter = data; + msg.parameter_size = size; + eip7002_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); +} + +static int reset(void **state) { + (void) state; + g_amount_calls = 0; + g_tx_chain_id = 1; + return 0; +} + +// ============================================================================= +// Tests — INIT / PROVIDE_PARAMETER concatenation +// ============================================================================= + +static void test_init_copies_selector_and_resets_received(void **state) { + (void) state; + eip7002_context_t ctx; + memset(&ctx, 0xCC, sizeof(ctx)); // dirty + static const uint8_t selector[CALLDATA_SELECTOR_SIZE] = {0xDE, 0xAD, 0xBE, 0xEF}; + txContent_t tx = {0}; + run_init(&ctx, selector, &tx); + assert_int_equal(ctx.received, CALLDATA_SELECTOR_SIZE); + assert_int_equal(ctx.withdrawal_request[0], 0xDE); + assert_int_equal(ctx.withdrawal_request[3], 0xEF); + // The rest of the context must be zeroed (explicit_bzero in source). + assert_int_equal(ctx.withdrawal_request[4], 0); + assert_int_equal(ctx.withdrawal_request[55], 0); +} + +static void test_parameters_concatenate_into_request(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + static const uint8_t selector[CALLDATA_SELECTOR_SIZE] = {0xDE, 0xAD, 0xBE, 0xEF}; + txContent_t tx = {0}; + run_init(&ctx, selector, &tx); + // The plugin packs everything into a 56-byte withdrawal_request + // union: selector_bytes... + parameter_bytes... up to 56 total. + // After INIT we have received=4 (selector), so 52 bytes of params + // are available (32 + 20). + uint8_t chunk[32]; + memset(chunk, 0xAA, sizeof(chunk)); + feed_param(&ctx, chunk, 32); + assert_int_equal(ctx.received, CALLDATA_SELECTOR_SIZE + 32); + feed_param(&ctx, chunk, 20); + assert_int_equal(ctx.received, WITHDRAWAL_REQUEST_SIZE); // 56 + // raw_amount sits at offset 48 within the union; the last 8 bytes + // of the 52 parameter bytes land there. + for (int i = 0; i < 8; i++) assert_int_equal(ctx.raw_amount[i], 0xAA); +} + +static void test_parameter_overflow_rejected(void **state) { + (void) state; + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE - 1}; + uint8_t chunk[32]; + memset(chunk, 0xFF, sizeof(chunk)); + // received(=55) + parameter_size(=32) = 87 > 56 → reject. + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = chunk; + msg.parameter_size = 32; + eip7002_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Tests — FINALIZE +// ============================================================================= + +static void test_finalize_complete_request_one_screen(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + ctx.received = WITHDRAWAL_REQUEST_SIZE; // full exit (raw_amount=0) + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 1); // Validator only + assert_int_equal(msg.uiType, ETH_UI_TYPE_GENERIC); +} + +static void test_finalize_incomplete_rejected(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + ctx.received = WITHDRAWAL_REQUEST_SIZE - 1; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_non_mainnet_rejected(void **state) { + (void) state; + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + g_tx_chain_id = 2; // not mainnet + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_partial_withdrawal_extra_screen(void **state) { + (void) state; + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + ctx.raw_amount[7] = 0x42; // non-zero → partial + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 2); // Validator + Amount +} + +static void test_finalize_tx_value_above_threshold_extra_screen(void **state) { + (void) state; + // 1 gwei + 1 wei = 1_000_000_001 wei = 0x3B9ACA01. Encoded BE as 4 bytes. + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + txContent_t tx = {0}; + tx.value.value[0] = 0x3B; + tx.value.value[1] = 0x9A; + tx.value.value[2] = 0xCA; + tx.value.value[3] = 0x01; + tx.value.length = 4; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 2); // Validator + Tx value +} + +static void test_finalize_tx_value_below_threshold_hidden(void **state) { + (void) state; + // 1 gwei exactly is at the threshold (`val > 1e9`), so a value of + // EXACTLY 1e9 wei is NOT shown. Use 0x3B9ACA00 = 1_000_000_000. + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + txContent_t tx = {0}; + tx.value.value[0] = 0x3B; + tx.value.value[1] = 0x9A; + tx.value.value[2] = 0xCA; + tx.value.value[3] = 0x00; + tx.value.length = 4; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 1); // Tx value hidden +} + +static void test_finalize_tx_value_huge_shown(void **state) { + (void) state; + // value.length > 8 bytes -> unambiguously > 2^64 -> shown. + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + txContent_t tx = {0}; + memset(tx.value.value, 0xFF, 16); + tx.value.length = 16; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 2); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_ID +// ============================================================================= + +static void test_query_contract_id_full_exit(void **state) { + (void) state; + eip7002_context_t ctx = {0}; // raw_amount = 0 + char name[32] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "full exit"); + assert_string_equal(version, "do"); +} + +static void test_query_contract_id_partial_withdrawal(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + ctx.raw_amount[7] = 0x42; + char name[32] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "partial withdrawal"); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_UI +// ============================================================================= + +static void test_ui_validator_screen_renders_pubkey(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + memset(ctx.validator_pubkey, 0xAB, sizeof(ctx.validator_pubkey)); + txContent_t tx = {0}; + char title[32] = {0}; + char body[128] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 0; + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "Validator"); + assert_int_equal(body[0], '0'); + assert_int_equal(body[1], 'x'); + // format_hex emits UPPERCASE; "AB" expected. + assert_int_equal(body[2], 'A'); + assert_int_equal(body[3], 'B'); +} + +static void test_ui_tx_value_screen_when_above_threshold(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + txContent_t tx = {0}; + tx.value.value[0] = 0x3B; + tx.value.value[1] = 0x9A; + tx.value.value[2] = 0xCA; + tx.value.value[3] = 0x01; + tx.value.length = 4; + char title[32] = {0}; + char body[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 1; + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Tx value"); + assert_string_equal(body, "FMT ETH"); +} + +static void test_ui_amount_screen_when_partial(void **state) { + (void) state; + eip7002_context_t ctx = {0}; + ctx.raw_amount[7] = 0x42; + txContent_t tx = {0}; // tx.value = 0 → no tx_value screen + char title[32] = {0}; + char body[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 1; // Amount sits at idx 1 when tx_value hidden + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Amount"); +} + +// ============================================================================= +// Branch-coverage quick wins -- NULL guards, switch defaults, edge buffers +// ============================================================================= + +static void test_dispatcher_null_param_silent(void **state) { + (void) state; + // The dispatcher's outer `if (param != NULL)` guards every sub-handler. + // Passing NULL must short-circuit silently rather than crash. + eip7002_plugin_call(ETH_PLUGIN_INIT_CONTRACT, NULL); +} + +static void test_dispatcher_unknown_message_silent(void **state) { + (void) state; + // switch (msg) default branch: an unmapped eth_plugin_msg_t value + // hits the PRINTF default and returns without touching param. + ethPluginInitContract_t msg = {0}; + msg.result = 0xAB; // sentinel + eip7002_plugin_call((eth_plugin_msg_t) 0x7F, &msg); + assert_int_equal(msg.result, 0xAB); +} + +static void test_ui_validator_msg_too_small_short_circuits(void **state) { + (void) state; + // msgLength < 2 means we can't even write the "0x" prefix. + eip7002_context_t ctx = {0}; + char title[16] = {0}; + char msg_buf[4] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = msg_buf; + msg.msgLength = 1; // too small for "0x" + msg.screenIndex = 0; // S_VALIDATOR + msg.result = ETH_PLUGIN_RESULT_OK; + txContent_t tx = {0}; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + // The S_VALIDATOR path returns early on msgLength<2 without + // writing "Validator" into the title. + assert_string_equal(title, ""); +} + +static void test_ui_unknown_screen_index_no_op(void **state) { + (void) state; + // screenIndex doesn't match S_VALIDATOR / S_TX_VALUE / S_REQUEST_AMOUNT + // -> falls into S_UNKNOWN -> bare `break` -> result set to OK at end. + eip7002_context_t ctx = {0}; + char title[16] = {0}; + char msg_buf[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = msg_buf; + msg.msgLength = sizeof(msg_buf); + msg.screenIndex = 99; + txContent_t tx = {0}; + msg.txContent = &tx; + eip7002_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, ""); +} + +static void test_has_tx_value_null_txcontent_returns_false(void **state) { + (void) state; + // has_tx_value is static; reach it through FINALIZE with NULL + // txContent. has_tx_value()'s first OR clause catches NULL and + // returns false -- the finalize then proceeds without adding the + // tx-value extra screen. + eip7002_context_t ctx = {.received = WITHDRAWAL_REQUEST_SIZE}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = NULL; + eip7002_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_init_copies_selector_and_resets_received, reset), + cmocka_unit_test_setup(test_parameters_concatenate_into_request, reset), + cmocka_unit_test_setup(test_parameter_overflow_rejected, reset), + cmocka_unit_test_setup(test_finalize_complete_request_one_screen, reset), + cmocka_unit_test_setup(test_finalize_incomplete_rejected, reset), + cmocka_unit_test_setup(test_finalize_non_mainnet_rejected, reset), + cmocka_unit_test_setup(test_finalize_partial_withdrawal_extra_screen, reset), + cmocka_unit_test_setup(test_finalize_tx_value_above_threshold_extra_screen, reset), + cmocka_unit_test_setup(test_finalize_tx_value_below_threshold_hidden, reset), + cmocka_unit_test_setup(test_finalize_tx_value_huge_shown, reset), + cmocka_unit_test_setup(test_query_contract_id_full_exit, reset), + cmocka_unit_test_setup(test_query_contract_id_partial_withdrawal, reset), + cmocka_unit_test_setup(test_ui_validator_screen_renders_pubkey, reset), + cmocka_unit_test_setup(test_ui_tx_value_screen_when_above_threshold, reset), + cmocka_unit_test_setup(test_ui_amount_screen_when_partial, reset), + cmocka_unit_test_setup(test_dispatcher_null_param_silent, reset), + cmocka_unit_test_setup(test_dispatcher_unknown_message_silent, reset), + cmocka_unit_test_setup(test_ui_validator_msg_too_small_short_circuits, reset), + cmocka_unit_test_setup(test_ui_unknown_screen_index_no_op, reset), + cmocka_unit_test_setup(test_has_tx_value_null_txcontent_returns_false, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_eip7251_plugin.c b/tests/unit/src/test_eip7251_plugin.c new file mode 100644 index 0000000000..db3d5ed0c3 --- /dev/null +++ b/tests/unit/src/test_eip7251_plugin.c @@ -0,0 +1,415 @@ +/** + * @file test_eip7251_plugin.c + * @brief Unit tests for the EIP-7251 validator-consolidation plugin + * at src/plugins/eip7251/eip7251_plugin.c. + * + * EIP-7251 lets a validator move its effective balance to another + * validator (or itself, "compound") by calling the predeploy at + * 0x0000BBdDc7CE488642fb579F8B00f3a590007251 with a 96-byte payload + * of source_pubkey || target_pubkey. The plugin concatenates the + * calldata into a 96-byte union and renders 1-3 screens depending + * on whether the target differs from the source and whether a + * native value > 1 gwei is attached. + * + * Same security gates as EIP-7002: has_tx_value caps the hidden + * value budget at 1 gwei, and FINALIZE refuses a short payload. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "eth_plugin_interface.h" +#include "eip7251_plugin.h" + +// ============================================================================= +// eip7251_context_t mirror (file-static in the source) +// ============================================================================= + +#define VALIDATOR_PUBKEY_SIZE 48 +#define CONSOLIDATION_REQUEST_SIZE (VALIDATOR_PUBKEY_SIZE * 2) + +typedef struct { + union { + uint8_t consolidation_request[CONSOLIDATION_REQUEST_SIZE]; + struct { + uint8_t source_pubkey[VALIDATOR_PUBKEY_SIZE]; + uint8_t target_pubkey[VALIDATOR_PUBKEY_SIZE]; + }; + }; + uint8_t received; +} eip7251_context_t; + +// ============================================================================= +// Globals +// ============================================================================= + +extern uint64_t g_tx_chain_id; + +bool __wrap_amountToString(const uint8_t *amount, + uint8_t amount_size, + uint8_t decimals, + const char *ticker, + char *out, + size_t out_size) { + (void) amount; + (void) amount_size; + (void) decimals; + snprintf(out, out_size, "VAL %s", ticker); + return true; +} + +// ============================================================================= +// Helpers +// ============================================================================= + +static void run_init(eip7251_context_t *ctx, const uint8_t *selector) { + txContent_t tx = {0}; + ethPluginInitContract_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.pluginContextLength = sizeof(*ctx); + msg.selector = selector; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); +} + +// ============================================================================= +// Tests +// ============================================================================= + +static void test_init_copies_selector(void **state) { + (void) state; + eip7251_context_t ctx; + memset(&ctx, 0xCC, sizeof(ctx)); + static const uint8_t selector[CALLDATA_SELECTOR_SIZE] = {0xDE, 0xAD, 0xBE, 0xEF}; + run_init(&ctx, selector); + assert_int_equal(ctx.received, CALLDATA_SELECTOR_SIZE); + assert_int_equal(ctx.consolidation_request[0], 0xDE); +} + +static void test_parameter_overflow_rejected(void **state) { + (void) state; + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE - 1}; + uint8_t chunk[32]; + memset(chunk, 0xFF, sizeof(chunk)); + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = chunk; + msg.parameter_size = 32; + eip7251_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Branch-coverage quick wins -- NULL guards, switch defaults, edge buffers +// ============================================================================= + +static void test_dispatcher_null_param_silent(void **state) { + (void) state; + eip7251_plugin_call(ETH_PLUGIN_INIT_CONTRACT, NULL); +} + +static void test_dispatcher_unknown_message_silent(void **state) { + (void) state; + ethPluginInitContract_t msg = {0}; + msg.result = 0xAB; + eip7251_plugin_call((eth_plugin_msg_t) 0x7F, &msg); + assert_int_equal(msg.result, 0xAB); +} + +static void test_ui_msg_too_small_returns(void **state) { + (void) state; + // msgLength < 2 short-circuits BEFORE the switch. + eip7251_context_t ctx = {0}; + char title[16] = {0}; + char msg_buf[2] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = msg_buf; + msg.msgLength = 1; + msg.screenIndex = 0; + msg.result = ETH_PLUGIN_RESULT_OK; + txContent_t tx = {0}; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, ""); +} + +static void test_ui_unknown_screen_returns_no_result_set(void **state) { + (void) state; + // screenIndex not in {0, target?1, tx_value?...} -> S_UNKNOWN -> + // bare `return` -> param->result NOT bumped. + eip7251_context_t ctx = {0}; + char title[16] = {0}; + char msg_buf[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = msg_buf; + msg.msgLength = sizeof(msg_buf); + msg.screenIndex = 99; + msg.result = 0xAB; + txContent_t tx = {0}; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, 0xAB); +} + +static void test_has_tx_value_length_above_uint64_returns_true(void **state) { + (void) state; + // The `value.length > sizeof(uint64_t)` early-true branch in + // has_tx_value never fires on the existing tests (all use + // length<=8). FINALIZE with a >8-byte value reaches it and the + // tx-value extra screen gets added. + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xBB, VALIDATOR_PUBKEY_SIZE); // target != source + txContent_t tx = {0}; + tx.value.length = 9; // > sizeof(uint64_t) + memset(tx.value.value, 0xFF, tx.value.length); + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + // 2 screens for consolidate (source + target) + 1 for tx value = 3. + assert_int_equal(msg.numScreens, 3); +} + +static void test_parameter_success_copies_into_context(void **state) { + (void) state; + // Normal path: ctx empty, push a 32-byte chunk -> memcpy into + // consolidation_request, received bumps to 32, result OK. + eip7251_context_t ctx = {0}; + uint8_t chunk[32]; + memset(chunk, 0x42, sizeof(chunk)); + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = chunk; + msg.parameter_size = sizeof(chunk); + eip7251_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.received, 32); + assert_int_equal(ctx.consolidation_request[0], 0x42); + assert_int_equal(ctx.consolidation_request[31], 0x42); +} + +static void test_finalize_non_mainnet_rejected(void **state) { + (void) state; + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + g_tx_chain_id = 2; // not mainnet + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + g_tx_chain_id = 1; // restore + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_incomplete_rejected(void **state) { + (void) state; + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE - 1}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_compound_single_screen(void **state) { + (void) state; + // target == source → "compound" → numScreens = 1. + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 1); +} + +static void test_finalize_consolidate_two_screens(void **state) { + (void) state; + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xBB, VALIDATOR_PUBKEY_SIZE); + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 2); +} + +static void test_finalize_with_tx_value_extra_screen(void **state) { + (void) state; + eip7251_context_t ctx = {.received = CONSOLIDATION_REQUEST_SIZE}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); // compound + txContent_t tx = {0}; + tx.value.value[0] = 0x3B; + tx.value.value[1] = 0x9A; + tx.value.value[2] = 0xCA; + tx.value.value[3] = 0x01; // 1 gwei + 1 + tx.value.length = 4; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eip7251_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 2); // compound + tx_value +} + +static void test_query_contract_id_compound_vs_consolidate(void **state) { + (void) state; + char name[16] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + + eip7251_context_t ctx = {0}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + msg.pluginContext = (uint8_t *) &ctx; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "stake"); + assert_string_equal(version, "compound"); + + memset(ctx.target_pubkey, 0xBB, VALIDATOR_PUBKEY_SIZE); + memset(version, 0, sizeof(version)); + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(version, "consolidate"); +} + +static void test_ui_compound_uses_single_validator_title(void **state) { + (void) state; + eip7251_context_t ctx = {0}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); // compound + txContent_t tx = {0}; + char title[32], body[128]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 0; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Validator"); +} + +static void test_ui_consolidate_uses_from_to_titles(void **state) { + (void) state; + eip7251_context_t ctx = {0}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xBB, VALIDATOR_PUBKEY_SIZE); // consolidate + txContent_t tx = {0}; + char title[32], body[128]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 0; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "From validator"); + + msg.screenIndex = 1; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "To validator"); +} + +static void test_ui_tx_value_screen_dynamic_index(void **state) { + (void) state; + eip7251_context_t ctx = {0}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); // compound → 1 base screen + txContent_t tx = {0}; + tx.value.value[0] = 0x3B; + tx.value.value[1] = 0x9A; + tx.value.value[2] = 0xCA; + tx.value.value[3] = 0x01; + tx.value.length = 4; + char title[32], body[64]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 1; // tx_value sits at idx 1 in compound mode + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Tx value"); + assert_string_equal(body, "VAL ETH"); +} + +static void test_ui_msg_too_small_short_circuits(void **state) { + (void) state; + eip7251_context_t ctx = {0}; + memset(ctx.source_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + memset(ctx.target_pubkey, 0xAA, VALIDATOR_PUBKEY_SIZE); + txContent_t tx = {0}; + char title[32] = "untouched"; + char body[1] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = 1; + msg.screenIndex = 0; + eip7251_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + // The title is not touched when msgLength < 2. + assert_string_equal(title, "untouched"); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_init_copies_selector), + cmocka_unit_test(test_parameter_overflow_rejected), + cmocka_unit_test(test_parameter_success_copies_into_context), + cmocka_unit_test(test_dispatcher_null_param_silent), + cmocka_unit_test(test_dispatcher_unknown_message_silent), + cmocka_unit_test(test_ui_msg_too_small_returns), + cmocka_unit_test(test_ui_unknown_screen_returns_no_result_set), + cmocka_unit_test(test_has_tx_value_length_above_uint64_returns_true), + cmocka_unit_test(test_finalize_non_mainnet_rejected), + cmocka_unit_test(test_finalize_incomplete_rejected), + cmocka_unit_test(test_finalize_compound_single_screen), + cmocka_unit_test(test_finalize_consolidate_two_screens), + cmocka_unit_test(test_finalize_with_tx_value_extra_screen), + cmocka_unit_test(test_query_contract_id_compound_vs_consolidate), + cmocka_unit_test(test_ui_compound_uses_single_validator_title), + cmocka_unit_test(test_ui_consolidate_uses_from_to_titles), + cmocka_unit_test(test_ui_tx_value_screen_dynamic_index), + cmocka_unit_test(test_ui_msg_too_small_short_circuits), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_erc1155_plugin.c b/tests/unit/src/test_erc1155_plugin.c new file mode 100644 index 0000000000..35365962da --- /dev/null +++ b/tests/unit/src/test_erc1155_plugin.c @@ -0,0 +1,904 @@ +/** + * @file test_erc1155_plugin.c + * @brief Unit tests for the ERC-1155 internal plugin at + * src/plugins/erc1155/{erc1155_plugin.c, + * erc1155_provide_parameters.c, erc1155_ui.c}. + * + * ERC-1155 is the multi-token standard: a single batch transfer can + * move many distinct (tokenId, value) pairs at once. The plugin + * parses the ABI-encoded calldata into the context the UI then + * renders, and enforces several invariants that the host cannot be + * trusted to honour: + * - the offsets declared in the calldata head must align with where + * the parser sees the array length bytes (defence against + * spoofed offsets that point past the real array, leaving the + * parser to read uninitialised bytes), + * - the tokenIds[] and values[] arrays must have the same length + * (an attacker could otherwise hide values past the visible IDs), + * - the aggregate "total quantity" shown to the user is the + * arithmetic sum of every per-id value, with a uint256-overflow + * guard so a crafted batch cannot silently misreport that total, + * - the first ERC1155_BATCH_DISPLAY_MAX pairs are captured for the + * detail screens so a high-value tokenId cannot hide among + * innocuous ones (only the aggregate would otherwise have been + * shown), + * - any non-zero ETH value attached to the tx is rejected since + * none of the three selectors are payable. + * + * Pin every one of these. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "erc1155_plugin.h" +#include "erc1155_internal.h" +#include "eth_plugin_interface.h" +#include "shared_context.h" +#include "asset_info.h" +#include "uint256.h" +#include "uint_common.h" +#include "common_utils.h" + +// ============================================================================= +// Globals +// ============================================================================= + +// ============================================================================= +// Helpers +// ============================================================================= + +bool __wrap_getEthDisplayableAddress(uint8_t *addr, char *out, size_t out_size, uint64_t chain) { + (void) addr; + (void) chain; + if (out == NULL || out_size < 3) return false; + strncpy(out, "0xADDR", out_size - 1); + out[out_size - 1] = '\0'; + return true; +} + +// Build a 32-byte ABI parameter from a u32 (right-aligned BE). +static void make_abi_u32(uint8_t *param, uint32_t v) { + memset(param, 0, PARAMETER_LENGTH); + param[PARAMETER_LENGTH - 4] = (uint8_t) (v >> 24); + param[PARAMETER_LENGTH - 3] = (uint8_t) (v >> 16); + param[PARAMETER_LENGTH - 2] = (uint8_t) (v >> 8); + param[PARAMETER_LENGTH - 1] = (uint8_t) v; +} + +static void make_abi_address(uint8_t *param, uint8_t fill) { + memset(param, 0, PARAMETER_LENGTH); + memset(param + 12, fill, 20); +} + +// ============================================================================= +// Selectors +// ============================================================================= + +static const uint8_t SEL_APPROVE_FOR_ALL[] = {0xa2, 0x2c, 0xb4, 0x65}; +static const uint8_t SEL_SAFE_TRANSFER[] = {0xf2, 0x42, 0x43, 0x2a}; +static const uint8_t SEL_SAFE_BATCH[] = {0x2e, 0xb2, 0xc2, 0xd6}; + +static void run_init(erc1155_context_t *ctx, const uint8_t *selector) { + txContent_t tx = {0}; + ethPluginInitContract_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.pluginContextLength = sizeof(*ctx); + msg.selector = selector; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); +} + +static void feed_param(erc1155_context_t *ctx, uint8_t *param, uint32_t offset) { + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.parameter = param; + msg.parameterOffset = offset; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); +} + +// ============================================================================= +// Tests — INIT +// ============================================================================= + +static void test_init_recognises_three_selectors(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_APPROVE_FOR_ALL); + assert_int_equal(ctx.selectorIndex, SET_APPROVAL_FOR_ALL); + assert_int_equal(ctx.next_param, OPERATOR); + + memset(&ctx, 0, sizeof(ctx)); + run_init(&ctx, SEL_SAFE_TRANSFER); + assert_int_equal(ctx.selectorIndex, SAFE_TRANSFER); + assert_int_equal(ctx.next_param, FROM); + + memset(&ctx, 0, sizeof(ctx)); + run_init(&ctx, SEL_SAFE_BATCH); + assert_int_equal(ctx.selectorIndex, SAFE_BATCH_TRANSFER); + assert_int_equal(ctx.next_param, FROM); +} + +static void test_init_unknown_selector_falls_back(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + static const uint8_t unknown[] = {0xFF, 0xFF, 0xFF, 0xFF}; + txContent_t tx = {0}; + ethPluginInitContract_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.pluginContextLength = sizeof(ctx); + msg.selector = unknown; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_FALLBACK); +} + +// ============================================================================= +// Tests — PROVIDE_PARAMETER safeTransferFrom +// ============================================================================= + +static void test_init_zeroes_stale_context(void **state) { + (void) state; + erc1155_context_t ctx; + memset(&ctx, 0xCC, sizeof(ctx)); + run_init(&ctx, SEL_SAFE_BATCH); + assert_int_equal(ctx.selectorIndex, SAFE_BATCH_TRANSFER); + assert_int_equal(ctx.next_param, FROM); + assert_int_equal(ctx.batch_displayed, 0); + assert_false(ctx.batch_truncated); +} + +static void test_safe_transfer_walk(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_TRANSFER); + + uint8_t param[PARAMETER_LENGTH]; + make_abi_address(param, 0xAA); + feed_param(&ctx, param, 0); // FROM (consumed, not stored) + assert_int_equal(ctx.next_param, TO); + + make_abi_address(param, 0xBB); + feed_param(&ctx, param, 0); // TO + assert_int_equal(ctx.next_param, TOKEN_ID); + for (int i = 0; i < 20; i++) assert_int_equal(ctx.address[i], 0xBB); + + make_abi_u32(param, 42); + feed_param(&ctx, param, 0); // TOKEN_ID + assert_int_equal(ctx.next_param, VALUE); + + make_abi_u32(param, 7); + feed_param(&ctx, param, 0); // VALUE + assert_int_equal(ctx.next_param, NONE); + assert_int_equal(LOWER(LOWER(ctx.value)), 7); +} + +static void test_safe_transfer_extra_params_tolerated(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_TRANSFER); + uint8_t param[PARAMETER_LENGTH]; + make_abi_address(param, 0xAA); + feed_param(&ctx, param, 0); + feed_param(&ctx, param, 0); + make_abi_u32(param, 1); + feed_param(&ctx, param, 0); + feed_param(&ctx, param, 0); + assert_int_equal(ctx.next_param, NONE); + // Extra param past NONE: handler must not error (encoded `data` + // field of safeTransferFrom is allowed). + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.result = ETH_PLUGIN_RESULT_SUCCESSFUL; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_SUCCESSFUL); +} + +// ============================================================================= +// Tests — PROVIDE_PARAMETER safeBatchTransferFrom +// ============================================================================= +// +// ABI layout of safeBatchTransferFrom(from, to, ids[], values[], data): +// head: +// [0..31] from +// [32..63] to +// [64..95] offset_to_ids (relative to start of args) +// [96..127] offset_to_values +// [128..159] offset_to_data +// then at offset_to_ids: [length_ids:32] [ids[0]:32] ... [ids[N-1]:32] +// then at offset_to_values: [length_values:32] [values[0]:32] ... [values[N-1]:32] +// +// `parameterOffset` exposed to the plugin starts at 4 (selector consumed) +// and points to the start of the param. The offset values stored in the +// head are then +4 by the parser to translate "from start of args" into +// "from start of calldata". + +static void run_batch_head(erc1155_context_t *ctx, + uint32_t ids_offset_args, + uint32_t values_offset_args) { + uint8_t param[PARAMETER_LENGTH]; + // FROM + make_abi_address(param, 0xAA); + feed_param(ctx, param, 4); + // TO + make_abi_address(param, 0xBB); + feed_param(ctx, param, 36); + // IDS_OFFSET (in args-frame units, parser adds +4) + make_abi_u32(param, ids_offset_args); + feed_param(ctx, param, 68); + // VALUES_OFFSET + make_abi_u32(param, values_offset_args); + feed_param(ctx, param, 100); +} + +static void test_batch_empty_ids_skips_to_value_length(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + run_batch_head(&ctx, 128, 224); + assert_int_equal(ctx.next_param, TOKEN_IDS_LENGTH); + + uint8_t param[PARAMETER_LENGTH]; + // ids array length = 0: must go to VALUE_LENGTH to avoid --ids_array_len + // underflow (uint16_t wraps to 65535). + make_abi_u32(param, 0); + feed_param(&ctx, param, 132); + assert_int_equal(ctx.next_param, VALUE_LENGTH); + assert_int_equal(ctx.ids_array_len, 0); +} + +static void test_batch_two_pair_walk(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + // ids[] at offset 128 (4 head params after the 5 args head — keeping + // the example simple); values[] at offset 128 + 32 + 2*32 = 224. + run_batch_head(&ctx, /*ids_offset_args=*/128, /*values_offset_args=*/224); + assert_int_equal(ctx.next_param, TOKEN_IDS_LENGTH); + + uint8_t param[PARAMETER_LENGTH]; + // ids array length = 2 + make_abi_u32(param, 2); + feed_param(&ctx, param, 132); // = ids_offset_args + 4 + assert_int_equal(ctx.next_param, TOKEN_ID); + assert_int_equal(ctx.ids_array_len, 2); + assert_int_equal(ctx.batch_displayed, 2); + assert_false(ctx.batch_truncated); + + // ids[0] = 7 + make_abi_u32(param, 7); + feed_param(&ctx, param, 164); + // ids[1] = 9 → after this, next_param flips to VALUE_LENGTH + make_abi_u32(param, 9); + feed_param(&ctx, param, 196); + assert_int_equal(ctx.next_param, VALUE_LENGTH); + + // values array length = 2 + make_abi_u32(param, 2); + feed_param(&ctx, param, 228); // = values_offset_args + 4 + assert_int_equal(ctx.next_param, VALUE); + + // values[0] = 100 + make_abi_u32(param, 100); + feed_param(&ctx, param, 260); + // values[1] = 50 + make_abi_u32(param, 50); + feed_param(&ctx, param, 292); + assert_int_equal(ctx.next_param, NONE); + // total quantity = 100 + 50 = 150 + assert_int_equal(LOWER(LOWER(ctx.value)), 150); + + // batch_ids / batch_values captured the first two pairs. + assert_int_equal(ctx.batch_displayed, 2); + assert_int_equal(ctx.batch_ids[0][PARAMETER_LENGTH - 1], 7); + assert_int_equal(ctx.batch_ids[1][PARAMETER_LENGTH - 1], 9); + assert_int_equal(ctx.batch_values[0][PARAMETER_LENGTH - 1], 100); + assert_int_equal(ctx.batch_values[1][PARAMETER_LENGTH - 1], 50); +} + +static void test_batch_truncates_beyond_display_max(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + run_batch_head(&ctx, 128, 32 + 32 * (ERC1155_BATCH_DISPLAY_MAX + 1)); + + uint8_t param[PARAMETER_LENGTH]; + // 5 ids -> > ERC1155_BATCH_DISPLAY_MAX (3) -> batch_truncated. + make_abi_u32(param, 5); + feed_param(&ctx, param, 132); + assert_int_equal(ctx.batch_displayed, ERC1155_BATCH_DISPLAY_MAX); + assert_true(ctx.batch_truncated); +} + +static void test_batch_offset_mismatch_rejected(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + run_batch_head(&ctx, 128, 224); + + // Feed the ids_length parameter at the WRONG offset (one off); + // the parser must reject rather than misalign. + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 2); + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 999; // far past ids_offset + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_batch_arrays_length_mismatch_rejected(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + run_batch_head(&ctx, 128, 224); + uint8_t param[PARAMETER_LENGTH]; + + // Declare 2 ids + make_abi_u32(param, 2); + feed_param(&ctx, param, 132); + make_abi_u32(param, 1); + feed_param(&ctx, param, 164); + make_abi_u32(param, 2); + feed_param(&ctx, param, 196); + // ...then declare 3 values (mismatch). + make_abi_u32(param, 3); + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 228; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_batch_aggregate_quantity_overflow_rejected(void **state) { + (void) state; + // Two values: 2^255 + 2^255 wraps uint256 → handler must reject so + // the "total quantity" line shown to the user does not lie. + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_SAFE_BATCH); + run_batch_head(&ctx, 128, 224); + + uint8_t param[PARAMETER_LENGTH]; + // ids array length = 2 + ids[0]=1, ids[1]=2 + make_abi_u32(param, 2); + feed_param(&ctx, param, 132); + make_abi_u32(param, 1); + feed_param(&ctx, param, 164); + make_abi_u32(param, 2); + feed_param(&ctx, param, 196); + // values array length = 2 + make_abi_u32(param, 2); + feed_param(&ctx, param, 228); + // values[0] = 2^255 + memset(param, 0, sizeof(param)); + param[0] = 0x80; + feed_param(&ctx, param, 260); + // values[1] = 2^255 — sum overflows uint256. + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 292; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Tests — PROVIDE_PARAMETER setApprovalForAll +// ============================================================================= + +static void test_approval_for_all_walk(void **state) { + (void) state; + erc1155_context_t ctx = {0}; + run_init(&ctx, SEL_APPROVE_FOR_ALL); + + uint8_t param[PARAMETER_LENGTH]; + make_abi_address(param, 0xAA); + feed_param(&ctx, param, 0); // OPERATOR + assert_int_equal(ctx.next_param, APPROVED); + + memset(param, 0, sizeof(param)); + param[PARAMETER_LENGTH - 1] = 1; + feed_param(&ctx, param, 0); // APPROVED = true + assert_int_equal(ctx.next_param, NONE); + assert_true(ctx.approved); + + // Extra param after NONE → error. + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Tests — FINALIZE +// ============================================================================= + +static void test_finalize_safe_transfer_five_screens(void **state) { + (void) state; + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 5); +} + +static void test_finalize_batch_screens_formula(void **state) { + (void) state; + // 4 fixed + 2 * batch_displayed + 1 if truncated. + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, + .batch_displayed = ERC1155_BATCH_DISPLAY_MAX, + .batch_truncated = true}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 4 + 2 * ERC1155_BATCH_DISPLAY_MAX + 1); +} + +static void test_finalize_approval_three_screens(void **state) { + (void) state; + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.numScreens, 3); +} + +static void test_finalize_eth_attached_rejected(void **state) { + (void) state; + // None of the three ERC-1155 selectors are payable. Any non-zero + // ETH value attached to the tx means the calldata is hostile. + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + txContent_t tx = {0}; + tx.value.value[0] = 0x01; + tx.value.length = 1; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_unknown_selector_rejects(void **state) { + (void) state; + erc1155_context_t ctx = {.selectorIndex = 0x7F}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc1155_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_query_id_unknown_selector_rejects(void **state) { + (void) state; + erc1155_context_t ctx = {.selectorIndex = 0x7F}; + char name[32] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_provide_info_returns_ok(void **state) { + (void) state; + // handle_provide_info_1155 just sets result = OK; pin the dispatch + // path through erc1155_plugin_call too. + ethPluginProvideInfo_t msg = {0}; + erc1155_plugin_call(ETH_PLUGIN_PROVIDE_INFO, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_ID +// ============================================================================= + +static void test_query_contract_id_per_selector(void **state) { + (void) state; + char name[32], version[16]; + + erc1155_context_t ctx_approve = {.selectorIndex = SET_APPROVAL_FOR_ALL}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx_approve; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + memset(name, 0, sizeof(name)); + memset(version, 0, sizeof(version)); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "NFT allowance"); + assert_string_equal(version, "manage"); + + erc1155_context_t ctx_transfer = {.selectorIndex = SAFE_TRANSFER}; + msg.pluginContext = (uint8_t *) &ctx_transfer; + memset(name, 0, sizeof(name)); + memset(version, 0, sizeof(version)); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "NFT"); + assert_string_equal(version, "Transfer"); + + erc1155_context_t ctx_batch = {.selectorIndex = SAFE_BATCH_TRANSFER}; + msg.pluginContext = (uint8_t *) &ctx_batch; + memset(name, 0, sizeof(name)); + memset(version, 0, sizeof(version)); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "NFT"); + assert_string_equal(version, "Batch Transfer"); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_UI (spot checks) +// ============================================================================= + +static union extraInfo_t g_nft_info; + +static void prep_nft_info(void) { + memset(&g_nft_info, 0, sizeof(g_nft_info)); + strncpy(g_nft_info.nft.collectionName, "Wares", sizeof(g_nft_info.nft.collectionName) - 1); + memset(g_nft_info.nft.contractAddress, 0xBB, ADDRESS_LENGTH); +} + +static void test_ui_null_item1_rejected(void **state) { + (void) state; + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.item1 = NULL; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_ui_safe_transfer_screen0(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.item1 = &g_nft_info; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 0; + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "To"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_batch_total_quantity_screen(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, .array_index = 2}; + LOWER(LOWER(ctx.value)) = 150; + char title[32], body[64]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.item1 = &g_nft_info; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 3; // BATCH_SCREEN_TOTAL_QUANTITY + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Total Quantity"); + assert_string_equal(body, "150 from 2 NFT IDs"); +} + +static void test_ui_batch_truncation_warning_screen(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, + .batch_displayed = ERC1155_BATCH_DISPLAY_MAX, + .batch_truncated = true, + .array_index = 7}; + char title[32], body[64]; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.item1 = &g_nft_info; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + // Warning sits after the 4 fixed screens + 2*display pair screens. + msg.screenIndex = (uint8_t) (4 + 2 * ERC1155_BATCH_DISPLAY_MAX); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "WARNING"); + assert_string_equal(body, "Only first 3 of 7 IDs shown"); +} + +// ============================================================================= +// Remaining sub-screens for each selector +// ============================================================================= + +static void prep_ui_msg(ethQueryContractUI_t *msg, + erc1155_context_t *ctx, + char *title, + char *body, + uint8_t screen) { + memset(msg, 0, sizeof(*msg)); + msg->pluginContext = (uint8_t *) ctx; + msg->item1 = &g_nft_info; + msg->title = title; + msg->titleLength = 32; + msg->msg = body; + msg->msgLength = 64; + msg->screenIndex = screen; +} + +// SAFE_TRANSFER sub-screens + +static void test_ui_safe_transfer_screen1_collection(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Collection Name"); + assert_string_equal(body, "Wares"); +} + +static void test_ui_safe_transfer_screen2_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT Address"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_safe_transfer_screen3_nft_id(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + ctx.tokenId[31] = 99; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 3); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT ID"); + assert_string_equal(body, "99"); +} + +static void test_ui_safe_transfer_screen4_quantity(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + LOWER(LOWER(ctx.value)) = 1234; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 4); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Quantity"); + assert_string_equal(body, "1234"); +} + +static void test_ui_safe_transfer_unknown_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// SET_APPROVAL_FOR_ALL sub-screens + +static void test_ui_approval_for_all_screen0_allow(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Allow"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_approval_for_all_screen0_revoke(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = false}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Revoke"); +} + +static void test_ui_approval_for_all_screen1_to_manage_all(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "To Manage ALL"); + assert_string_equal(body, "Wares"); +} + +static void test_ui_approval_for_all_screen2_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT Address"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_approval_for_all_unknown_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// SAFE_BATCH_TRANSFER sub-screens + +static void test_ui_batch_screen0_to(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "To"); +} + +static void test_ui_batch_screen1_collection(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Collection Name"); + assert_string_equal(body, "Wares"); +} + +static void test_ui_batch_screen2_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT Address"); +} + +static void test_ui_batch_pair_nft_id_screen(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, .batch_displayed = 2}; + ctx.batch_ids[0][31] = 7; + char title[32], body[64]; + ethQueryContractUI_t msg; + // Pair base is at index 4. Even offset = NFT ID, odd = Quantity. + prep_ui_msg(&msg, &ctx, title, body, 4); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT ID #1"); + assert_string_equal(body, "7"); +} + +static void test_ui_batch_pair_quantity_screen(void **state) { + (void) state; + prep_nft_info(); + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, .batch_displayed = 2}; + ctx.batch_values[0][31] = 42; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 5); // Pair 0, value half + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Quantity #1"); + assert_string_equal(body, "42"); +} + +static void test_ui_batch_unsupported_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + // batch_displayed = 1 so the pair range is [4..5]; index 6 falls + // in the no-truncation gap and must error. + erc1155_context_t ctx = {.selectorIndex = SAFE_BATCH_TRANSFER, + .batch_displayed = 1, + .batch_truncated = false}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc1155_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_init_recognises_three_selectors), + cmocka_unit_test(test_init_unknown_selector_falls_back), + cmocka_unit_test(test_init_zeroes_stale_context), + cmocka_unit_test(test_batch_empty_ids_skips_to_value_length), + cmocka_unit_test(test_safe_transfer_walk), + cmocka_unit_test(test_safe_transfer_extra_params_tolerated), + cmocka_unit_test(test_batch_two_pair_walk), + cmocka_unit_test(test_batch_truncates_beyond_display_max), + cmocka_unit_test(test_batch_offset_mismatch_rejected), + cmocka_unit_test(test_batch_arrays_length_mismatch_rejected), + cmocka_unit_test(test_batch_aggregate_quantity_overflow_rejected), + cmocka_unit_test(test_approval_for_all_walk), + cmocka_unit_test(test_finalize_safe_transfer_five_screens), + cmocka_unit_test(test_finalize_batch_screens_formula), + cmocka_unit_test(test_finalize_approval_three_screens), + cmocka_unit_test(test_finalize_eth_attached_rejected), + cmocka_unit_test(test_finalize_unknown_selector_rejects), + cmocka_unit_test(test_query_id_unknown_selector_rejects), + cmocka_unit_test(test_provide_info_returns_ok), + cmocka_unit_test(test_query_contract_id_per_selector), + cmocka_unit_test(test_ui_null_item1_rejected), + cmocka_unit_test(test_ui_safe_transfer_screen0), + cmocka_unit_test(test_ui_batch_total_quantity_screen), + cmocka_unit_test(test_ui_batch_truncation_warning_screen), + cmocka_unit_test(test_ui_safe_transfer_screen1_collection), + cmocka_unit_test(test_ui_safe_transfer_screen2_nft_address), + cmocka_unit_test(test_ui_safe_transfer_screen3_nft_id), + cmocka_unit_test(test_ui_safe_transfer_screen4_quantity), + cmocka_unit_test(test_ui_safe_transfer_unknown_screen_rejected), + cmocka_unit_test(test_ui_approval_for_all_screen0_allow), + cmocka_unit_test(test_ui_approval_for_all_screen0_revoke), + cmocka_unit_test(test_ui_approval_for_all_screen1_to_manage_all), + cmocka_unit_test(test_ui_approval_for_all_screen2_nft_address), + cmocka_unit_test(test_ui_approval_for_all_unknown_screen_rejected), + cmocka_unit_test(test_ui_batch_screen0_to), + cmocka_unit_test(test_ui_batch_screen1_collection), + cmocka_unit_test(test_ui_batch_screen2_nft_address), + cmocka_unit_test(test_ui_batch_pair_nft_id_screen), + cmocka_unit_test(test_ui_batch_pair_quantity_screen), + cmocka_unit_test(test_ui_batch_unsupported_screen_rejected), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_erc721_plugin.c b/tests/unit/src/test_erc721_plugin.c new file mode 100644 index 0000000000..b37483da14 --- /dev/null +++ b/tests/unit/src/test_erc721_plugin.c @@ -0,0 +1,703 @@ +/** + * @file test_erc721_plugin.c + * @brief Unit tests for the ERC-721 internal plugin at + * src/plugins/erc721/{erc721_plugin.c, erc721_provide_parameters.c, + * erc721_ui.c}. + * + * The ERC-721 plugin parses NFT-related calldata (approve / + * setApprovalForAll / transferFrom / safeTransferFrom) and extracts + * the (operator|to, tokenId) tuple that the device displays during + * signing. Every value the user sees on the review screens comes + * out of this plugin — a bug in the parameter walk shows the wrong + * recipient or the wrong NFT to the user. + * + * Pin every selector branch and every screen the UI renders: + * - the five canonical ERC-721 selectors must be recognised and + * seed the correct `next_param` state, + * - an unknown selector falls back (the app then refuses to use + * this plugin for the tx), + * - the parameter walk for each selector reaches NONE exactly when + * the right field count has been consumed, + * - SAFE_TRANSFER_DATA tolerates extra parameters past TOKEN_ID + * (the trailing ABI bytes), while SAFE_TRANSFER / TRANSFER stay + * strict, + * - FINALIZE: TRANSFER/APPROVE → 4 screens, SET_APPROVAL_FOR_ALL + * → 3 screens, an extra ETH value bumps by one screen for + * transfers but is forbidden for setApprovalForAll, + * - QUERY_CONTRACT_ID and QUERY_CONTRACT_UI write the strings the + * user actually sees, and reject unknown selector indices or a + * missing NFT info pointer. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "erc721_plugin.h" +#include "erc721_internal.h" +#include "eth_plugin_interface.h" +#include "shared_context.h" +#include "asset_info.h" + +// ============================================================================= +// Globals +// ============================================================================= + +// ============================================================================= +// Wraps +// ============================================================================= + +// getEthDisplayableAddress lives in common_utils.c. Wrap it so tests +// see deterministic output without touching keccak. +bool __wrap_getEthDisplayableAddress(uint8_t *addr, char *out, size_t out_size, uint64_t chain_id) { + (void) addr; + (void) chain_id; + if (out == NULL || out_size < 3) return false; + strncpy(out, "0xADDR", out_size - 1); + out[out_size - 1] = '\0'; + return true; +} + +// ============================================================================= +// ERC-721 canonical selectors (copy of the source for byte-pinning) +// ============================================================================= + +static const uint8_t SEL_APPROVE[] = {0x09, 0x5e, 0xa7, 0xb3}; +static const uint8_t SEL_APPROVE_FOR_ALL[] = {0xa2, 0x2c, 0xb4, 0x65}; +static const uint8_t SEL_TRANSFER[] = {0x23, 0xb8, 0x72, 0xdd}; +static const uint8_t SEL_SAFE_TRANSFER[] = {0x42, 0x84, 0x2e, 0x0e}; +static const uint8_t SEL_SAFE_TRANSFER_DATA[] = {0xb8, 0x8d, 0x4f, 0xde}; + +static void init_msg_with_selector(ethPluginInitContract_t *msg, + uint8_t *ctx_storage, + txContent_t *tx_content, + const uint8_t *selector) { + memset(msg, 0, sizeof(*msg)); + memset(tx_content, 0, sizeof(*tx_content)); + msg->pluginContext = ctx_storage; + msg->pluginContextLength = sizeof(erc721_context_t); + msg->selector = selector; + msg->txContent = tx_content; + msg->result = ETH_PLUGIN_RESULT_UNAVAILABLE; +} + +// Helper: build a 32-byte ABI parameter where the last 20 bytes are +// the address (left-padded with zeroes per ABI rules). +static void make_abi_address(uint8_t *param, uint8_t fill) { + memset(param, 0, PARAMETER_LENGTH); + memset(param + 12, fill, 20); +} + +// ============================================================================= +// Tests — INIT +// ============================================================================= + +static void test_init_recognises_approve(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_APPROVE); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, APPROVE); + assert_int_equal(ctx.next_param, OPERATOR); +} + +static void test_init_recognises_approve_for_all(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_APPROVE_FOR_ALL); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, SET_APPROVAL_FOR_ALL); + assert_int_equal(ctx.next_param, OPERATOR); +} + +static void test_init_recognises_transfer(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_TRANSFER); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, TRANSFER); + assert_int_equal(ctx.next_param, FROM); +} + +static void test_init_recognises_safe_transfer(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_SAFE_TRANSFER); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, SAFE_TRANSFER); +} + +static void test_init_recognises_safe_transfer_data(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_SAFE_TRANSFER_DATA); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, SAFE_TRANSFER_DATA); +} + +static void test_init_unknown_selector_falls_back(void **state) { + (void) state; + erc721_context_t ctx = {0}; + ethPluginInitContract_t msg; + txContent_t tx; + static const uint8_t unknown[] = {0xFF, 0xFF, 0xFF, 0xFF}; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, unknown); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_FALLBACK); +} + +static void test_init_zeroes_stale_context(void **state) { + (void) state; + erc721_context_t ctx; + memset(&ctx, 0xCC, sizeof(ctx)); + ethPluginInitContract_t msg; + txContent_t tx; + init_msg_with_selector(&msg, (uint8_t *) &ctx, &tx, SEL_APPROVE); + erc721_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.selectorIndex, APPROVE); + // explicit_bzero must have cleared everything before selectorIndex was written. + assert_int_equal(ctx.next_param, OPERATOR); + assert_int_equal(ctx.approved, 0); +} + +// ============================================================================= +// Tests — PROVIDE_PARAMETER +// ============================================================================= + +static void test_approve_param_walk(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = APPROVE, .next_param = OPERATOR}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + uint8_t param[PARAMETER_LENGTH]; + msg.parameter = param; + + // 1st parameter: operator address. + make_abi_address(param, 0xAA); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_SUCCESSFUL); + assert_int_equal(ctx.next_param, TOKEN_ID); + for (int i = 0; i < 20; i++) assert_int_equal(ctx.address[i], 0xAA); + + // 2nd parameter: token id. + memset(param, 0x11, sizeof(param)); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_SUCCESSFUL); + assert_int_equal(ctx.next_param, NONE); + for (int i = 0; i < INT256_LENGTH; i++) assert_int_equal(ctx.tokenId[i], 0x11); + + // 3rd parameter: should NOT be accepted (default arm of switch). + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_transfer_param_walk_strict(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = TRANSFER, .next_param = FROM}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + uint8_t param[PARAMETER_LENGTH]; + msg.parameter = param; + + // FROM (consumed, not stored) + make_abi_address(param, 0xBB); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(ctx.next_param, TO); + + // TO (stored in address) + make_abi_address(param, 0xCC); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(ctx.next_param, TOKEN_ID); + for (int i = 0; i < 20; i++) assert_int_equal(ctx.address[i], 0xCC); + + // TOKEN_ID + memset(param, 0x42, sizeof(param)); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(ctx.next_param, NONE); + + // Extra param under strict mode → error. + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_safe_transfer_data_tolerates_extra_params(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = SAFE_TRANSFER_DATA, .next_param = FROM}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + uint8_t param[PARAMETER_LENGTH]; + msg.parameter = param; + + make_abi_address(param, 0xAA); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); // FROM + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); // TO + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); // TOKEN_ID + assert_int_equal(ctx.next_param, NONE); + + // Non-strict: extra param after NONE is ignored, not an error. + msg.result = ETH_PLUGIN_RESULT_SUCCESSFUL; + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_SUCCESSFUL); +} + +static void test_approval_for_all_walks_two_params(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .next_param = OPERATOR}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + uint8_t param[PARAMETER_LENGTH]; + msg.parameter = param; + + // OPERATOR. + make_abi_address(param, 0xDD); + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(ctx.next_param, APPROVED); + for (int i = 0; i < 20; i++) assert_int_equal(ctx.address[i], 0xDD); + + // APPROVED (bool: last byte of the 32-byte param). + memset(param, 0, sizeof(param)); + param[PARAMETER_LENGTH - 1] = 0x01; + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(ctx.next_param, NONE); + assert_true(ctx.approved); + + // Extra param → error. + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_unknown_selector_index_rejects(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = 0x7F}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + uint8_t param[PARAMETER_LENGTH] = {0}; + msg.parameter = param; + erc721_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Tests — FINALIZE +// ============================================================================= + +static void test_finalize_transfer_four_screens(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc721_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 4); + assert_int_equal(msg.uiType, ETH_UI_TYPE_GENERIC); +} + +static void test_finalize_set_approval_three_screens(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc721_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 3); +} + +static void test_finalize_transfer_with_eth_value_adds_screen(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + txContent_t tx = {0}; + tx.value.value[0] = 0x01; // non-zero ETH + tx.value.length = 1; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc721_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 5); +} + +static void test_finalize_set_approval_with_eth_rejected(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL}; + txContent_t tx = {0}; + tx.value.value[0] = 0x01; + tx.value.length = 1; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc721_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + // setApprovalForAll is non-payable. Sending ETH alongside it + // means the calldata is hostile / malformed. + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_ID +// ============================================================================= + +static void test_query_contract_id_approve(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = APPROVE}; + char name[32] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(name, "NFT allowance"); + assert_string_equal(version, "manage"); +} + +static void test_query_contract_id_transfer(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char name[32] = {0}; + char version[16] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(name, "NFT"); + assert_string_equal(version, "Transfer"); +} + +static void test_finalize_unknown_selector_rejects(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = 0x7F}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + erc721_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_query_id_unknown_selector_rejects(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = 0x7F}; + char name[32] = {0}; + char version[32] = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_provide_info_returns_ok(void **state) { + (void) state; + // handle_provide_info_721 just sets result = OK; pin the dispatch + // path through erc721_plugin_call too. + ethPluginProvideInfo_t msg = {0}; + erc721_plugin_call(ETH_PLUGIN_PROVIDE_INFO, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); +} + +// ============================================================================= +// Tests — QUERY_CONTRACT_UI +// ============================================================================= + +static union extraInfo_t g_nft_info; +static void prep_nft_info(void) { + memset(&g_nft_info, 0, sizeof(g_nft_info)); + strncpy(g_nft_info.nft.collectionName, + "CryptoPunks", + sizeof(g_nft_info.nft.collectionName) - 1); + memset(g_nft_info.nft.contractAddress, 0xBB, ADDRESS_LENGTH); +} + +static void prep_ui_msg(ethQueryContractUI_t *msg, + erc721_context_t *ctx, + char *title, + char *body, + uint8_t screen) { + memset(msg, 0, sizeof(*msg)); + msg->pluginContext = (uint8_t *) ctx; + msg->item1 = &g_nft_info; + msg->title = title; + msg->titleLength = 32; + msg->msg = body; + msg->msgLength = 64; + msg->screenIndex = screen; +} + +static void test_ui_null_item1_rejected(void **state) { + (void) state; + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char title[32] = {0}; + char body[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.item1 = NULL; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_ui_transfer_screen0_is_to_address(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "To"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_transfer_screen1_is_collection(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Collection Name"); + assert_string_equal(body, "CryptoPunks"); +} + +static void test_ui_transfer_screen3_is_nft_id(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + // tokenId = 42 in big-endian (encoded by copy_parameter on a + // 32-byte ABI parameter where the LSB is at offset 31). + ctx.tokenId[31] = 42; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 3); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "NFT ID"); + assert_string_equal(body, "42"); +} + +static void test_ui_transfer_unknown_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_ui_approval_for_all_allow_vs_revoke(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Allow"); + + ctx.approved = false; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Revoke"); +} + +static void test_ui_approve_screen0_is_allow_to_address(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = APPROVE}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 0); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_string_equal(title, "Allow"); + assert_string_equal(body, "0xADDR"); +} + +// Remaining sub-screens for each selector: TRANSFER screen 2, APPROVE +// screens 1/2/3, SET_APPROVAL_FOR_ALL screens 1/2, plus the default +// arms in each switch. + +static void test_ui_transfer_screen2_is_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = TRANSFER}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "NFT Address"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_approve_screen1_is_to_manage_collection(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = APPROVE}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "To Manage Your"); + assert_string_equal(body, "CryptoPunks"); +} + +static void test_ui_approve_screen2_is_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = APPROVE}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "NFT Address"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_approve_screen3_is_nft_id(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = APPROVE}; + ctx.tokenId[31] = 7; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 3); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "NFT ID"); + assert_string_equal(body, "7"); +} + +static void test_ui_approve_unknown_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = APPROVE}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_ui_approval_for_all_screen1_is_to_manage_all(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 1); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "To Manage ALL"); + assert_string_equal(body, "CryptoPunks"); +} + +static void test_ui_approval_for_all_screen2_is_nft_address(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 2); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "NFT Address"); + assert_string_equal(body, "0xADDR"); +} + +static void test_ui_approval_for_all_unknown_screen_rejected(void **state) { + (void) state; + prep_nft_info(); + erc721_context_t ctx = {.selectorIndex = SET_APPROVAL_FOR_ALL, .approved = true}; + char title[32], body[64]; + ethQueryContractUI_t msg; + prep_ui_msg(&msg, &ctx, title, body, 99); + erc721_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_init_recognises_approve), + cmocka_unit_test(test_init_recognises_approve_for_all), + cmocka_unit_test(test_init_recognises_transfer), + cmocka_unit_test(test_init_recognises_safe_transfer), + cmocka_unit_test(test_init_recognises_safe_transfer_data), + cmocka_unit_test(test_init_unknown_selector_falls_back), + cmocka_unit_test(test_init_zeroes_stale_context), + cmocka_unit_test(test_approve_param_walk), + cmocka_unit_test(test_transfer_param_walk_strict), + cmocka_unit_test(test_safe_transfer_data_tolerates_extra_params), + cmocka_unit_test(test_approval_for_all_walks_two_params), + cmocka_unit_test(test_unknown_selector_index_rejects), + cmocka_unit_test(test_finalize_transfer_four_screens), + cmocka_unit_test(test_finalize_set_approval_three_screens), + cmocka_unit_test(test_finalize_transfer_with_eth_value_adds_screen), + cmocka_unit_test(test_finalize_set_approval_with_eth_rejected), + cmocka_unit_test(test_query_contract_id_approve), + cmocka_unit_test(test_query_contract_id_transfer), + cmocka_unit_test(test_finalize_unknown_selector_rejects), + cmocka_unit_test(test_query_id_unknown_selector_rejects), + cmocka_unit_test(test_provide_info_returns_ok), + cmocka_unit_test(test_ui_null_item1_rejected), + cmocka_unit_test(test_ui_transfer_screen0_is_to_address), + cmocka_unit_test(test_ui_transfer_screen1_is_collection), + cmocka_unit_test(test_ui_transfer_screen3_is_nft_id), + cmocka_unit_test(test_ui_transfer_unknown_screen_rejected), + cmocka_unit_test(test_ui_approval_for_all_allow_vs_revoke), + cmocka_unit_test(test_ui_approve_screen0_is_allow_to_address), + cmocka_unit_test(test_ui_transfer_screen2_is_nft_address), + cmocka_unit_test(test_ui_approve_screen1_is_to_manage_collection), + cmocka_unit_test(test_ui_approve_screen2_is_nft_address), + cmocka_unit_test(test_ui_approve_screen3_is_nft_id), + cmocka_unit_test(test_ui_approve_unknown_screen_rejected), + cmocka_unit_test(test_ui_approval_for_all_screen1_is_to_manage_all), + cmocka_unit_test(test_ui_approval_for_all_screen2_is_nft_address), + cmocka_unit_test(test_ui_approval_for_all_unknown_screen_rejected), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_eth2_plugin.c b/tests/unit/src/test_eth2_plugin.c new file mode 100644 index 0000000000..41481c39b2 --- /dev/null +++ b/tests/unit/src/test_eth2_plugin.c @@ -0,0 +1,511 @@ +/** + * @file test_eth2_plugin.c + * @brief Unit tests for the ETH2 staking deposit plugin at + * src/plugins/eth2/eth2_plugin.c. + * + * Staking 32 ETH on the Beacon Chain goes through a single + * `deposit(pubkey, withdrawal_credentials, signature, + * deposit_data_root)` call to the deposit contract + * (0x00000000219ab540356cBB839Cbe05303d7705Fa). The plugin parses + * the ABI-encoded calldata and renders two screens at signing time: + * the amount (must be 32 ETH) and the validator pubkey. + * + * The security-critical part of this plugin is the withdrawal- + * credentials sanity check: parameter 8 carries the SHA-256 digest + * of a BLS public key under the device's own derivation, and the + * plugin recomputes that digest and refuses to sign if it doesn't + * match. Without this gate, an attacker could divert future + * withdrawals to a key they control. + * + * Pin: + * - INIT marks the context valid, + * - the six ABI offset / length sanity checks fail-closed on a + * bad value (context->valid flipped to 0), + * - parameter 8 happy path leaves valid=1, mismatch flips it, + * - eth2WithdrawalIndex > INDEX_MAX (2^16) is rejected as a + * derivation-path-attack guard, + * - FINALIZE: valid=1 -> OK + 2 screens, valid=0 -> ERROR, + * - QUERY_CONTRACT_ID writes "ETH2"/"Deposit", + * - QUERY_CONTRACT_UI screen 0 is the amount (using + * g_chain_config->ticker), screen 1 is "0x" + 96 hex chars + * (48-byte BLS G1 pubkey). + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "shared_context.h" +#include "eth_plugin_interface.h" +#include "eth2_plugin.h" +#include "feature_get_eth2_public_key.h" + +// ============================================================================= +// eth2_deposit_parameters_t mirror +// ============================================================================= +// The real struct is file-static inside eth2_plugin.c. Mirror its +// layout so the tests can poke fields by name; if the production +// struct ever changes, this declaration must be updated in lockstep. +typedef struct { + uint8_t valid; + char deposit_address[BLS12381_G1_COMPRESSED_PUBKEY_LENGTH]; +} eth2_deposit_parameters_t; + +// ============================================================================= +// Globals +// ============================================================================= + +uint32_t eth2WithdrawalIndex = 0; +extern uint64_t g_tx_chain_id; + +// ============================================================================= +// Wraps +// ============================================================================= + +// Drive the withdrawal-credentials check from the test: the plugin +// derives a BLS pubkey for the configured index, sha256-hashes it, +// and compares against the host-supplied withdrawal_credentials param. +// We control the "derived pubkey" output here so the comparison is +// deterministic. +static uint8_t g_wd_pubkey_fill = 0x11; +uint32_t __wrap_get_eth2_public_key(uint32_t *bip32Path, uint8_t bip32PathLength, uint8_t *out) { + (void) bip32Path; + (void) bip32PathLength; + memset(out, g_wd_pubkey_fill, BLS12381_G1_COMPRESSED_PUBKEY_LENGTH); + return 0; +} + +// The plugin then hashes the derived pubkey via cx_hash_sha256. We +// produce a deterministic digest that depends on the input fill so +// that test_withdrawal_credentials_*_match works end-to-end without +// touching real crypto. +size_t __wrap_cx_hash_sha256(const uint8_t *in, size_t len, uint8_t *out, size_t out_len) { + (void) len; + if (out != NULL && out_len > 0) { + memset(out, in[0], out_len); // hash[i] = first byte of input + } + return out_len; +} + +// amountToString is in common_utils.c — provide a wrap so we can +// inspect the call without dragging the uint256 -> decimal chain +// through this slim target. +static int g_amount_to_string_calls = 0; +bool __wrap_amountToString(const uint8_t *amount, + uint8_t amount_size, + uint8_t decimals, + const char *ticker, + char *out, + size_t out_size) { + (void) amount; + (void) amount_size; + (void) decimals; + g_amount_to_string_calls++; + snprintf(out, out_size, "32 %s", ticker); + return true; +} + +// ============================================================================= +// Test helpers +// ============================================================================= + +static const uint8_t SEL_DEPOSIT[] = {0x22, 0x89, 0x51, 0x18}; + +static void run_init(eth2_deposit_parameters_t *ctx) { + txContent_t tx = {0}; + ethPluginInitContract_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.pluginContextLength = sizeof(*ctx); + msg.selector = SEL_DEPOSIT; + msg.txContent = &tx; + eth2_plugin_call(ETH_PLUGIN_INIT_CONTRACT, &msg); +} + +static void feed_param(eth2_deposit_parameters_t *ctx, uint8_t *param, uint32_t offset) { + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) ctx; + msg.parameter = param; + msg.parameterOffset = offset; + eth2_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); +} + +// Helper to build a 32-byte ABI parameter encoding a u32 value at the end. +static void make_abi_u32(uint8_t *param, uint32_t v) { + memset(param, 0, PARAMETER_LENGTH); + param[PARAMETER_LENGTH - 4] = (uint8_t) (v >> 24); + param[PARAMETER_LENGTH - 3] = (uint8_t) (v >> 16); + param[PARAMETER_LENGTH - 2] = (uint8_t) (v >> 8); + param[PARAMETER_LENGTH - 1] = (uint8_t) v; +} + +static int reset(void **state) { + (void) state; + memset(&tmpContent, 0, sizeof(tmpContent)); + g_wd_pubkey_fill = 0x11; + g_amount_to_string_calls = 0; + eth2WithdrawalIndex = 0; + g_tx_chain_id = 1; + return 0; +} + +// ============================================================================= +// Tests +// ============================================================================= + +static void test_init_marks_context_valid(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {0}; + run_init(&ctx); + assert_int_equal(ctx.valid, 1); +} + +static void test_offset_check_pubkey_offset_correct(void **state) { + (void) state; + // Offset 4 + 0 = pubkey offset, expected value = 0x80. + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 0x80); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 0)); + assert_int_equal(ctx.valid, 1); +} + +static void test_offset_check_pubkey_offset_wrong_flips_valid(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 0xBEEF); // not 0x80 + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 0)); + assert_int_equal(ctx.valid, 0); +} + +static void test_offset_check_pubkey_length_must_be_48(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 47); // BLS pubkey is 48 bytes + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 4)); + assert_int_equal(ctx.valid, 0); +} + +static void test_offset_check_signature_length_must_be_96(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 95); // BLS sig is 96 bytes + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 9)); + assert_int_equal(ctx.valid, 0); +} + +static void test_deposit_pubkey_copied_across_two_params(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + // Param 5 = first 32 bytes of pubkey + memset(param, 0xAA, sizeof(param)); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 5)); + // Param 6 = next 16 bytes (BLS G1 = 48 bytes total) + memset(param, 0xBB, sizeof(param)); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 6)); + // Bytes 0..31 from param 5, bytes 32..47 from param 6. The + // deposit_address field is `char[]`, so widen via uint8_t before + // comparing to avoid sign-extension when assert_int_equal coerces + // to int. + for (int i = 0; i < 32; i++) assert_int_equal((uint8_t) ctx.deposit_address[i], 0xAA); + for (int i = 32; i < 48; i++) assert_int_equal((uint8_t) ctx.deposit_address[i], 0xBB); +} + +static void test_withdrawal_credentials_match_keeps_valid(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + // The plugin will: + // 1. derive a pubkey filled with g_wd_pubkey_fill = 0x11, + // 2. sha256 it -> our wrap returns a digest filled with 0x11 + // (digest[i] = in[0]), + // 3. zero out the first byte (tmp[0] = 0), + // 4. memcmp against the host parameter. + // So the host parameter must be [0x00, 0x11, 0x11, ..., 0x11]. + uint8_t param[PARAMETER_LENGTH]; + memset(param, 0x11, sizeof(param)); + param[0] = 0; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 4 + (PARAMETER_LENGTH * 8); + eth2_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(ctx.valid, 1); +} + +static void test_withdrawal_credentials_mismatch_flips_valid(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + memset(param, 0xFF, sizeof(param)); // does not match expected hash + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 4 + (PARAMETER_LENGTH * 8); + eth2_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); + assert_int_equal(ctx.valid, 0); +} + +static void test_withdrawal_index_above_max_rejected(void **state) { + (void) state; + eth2WithdrawalIndex = 0x10001; // > INDEX_MAX (2^16) + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH] = {0}; + ethPluginProvideParameter_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.parameter = param; + msg.parameterOffset = 4 + (PARAMETER_LENGTH * 8); + eth2_plugin_call(ETH_PLUGIN_PROVIDE_PARAMETER, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); + assert_int_equal(ctx.valid, 0); +} + +static void test_finalize_valid_returns_two_screens(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eth2_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_int_equal(msg.numScreens, 2); + assert_int_equal(msg.uiType, ETH_UI_TYPE_GENERIC); +} + +static void test_finalize_invalid_returns_error(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 0}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + eth2_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_finalize_non_mainnet_rejected(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + txContent_t tx = {0}; + ethPluginFinalize_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.txContent = &tx; + g_tx_chain_id = 2; // not mainnet + eth2_plugin_call(ETH_PLUGIN_FINALIZE, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_query_contract_id_eth2_deposit(void **state) { + (void) state; + char name[32] = {0}; + char version[16] = {0}; + eth2_deposit_parameters_t ctx = {0}; + ethQueryContractID_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.name = name; + msg.nameLength = sizeof(name); + msg.version = version; + msg.versionLength = sizeof(version); + eth2_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_ID, &msg); + assert_string_equal(name, "ETH2"); + assert_string_equal(version, "Deposit"); +} + +static void test_ui_amount_screen_uses_chain_ticker(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {0}; + char title[32] = {0}; + char body[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 0; + eth2_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "Amount"); + assert_string_equal(body, "32 ETH"); + assert_int_equal(g_amount_to_string_calls, 1); +} + +static void test_ui_validator_screen_renders_pubkey_hex(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {0}; + // Fill the 48-byte deposit_address with 0xAB for an easy expectation. + memset(ctx.deposit_address, 0xAB, sizeof(ctx.deposit_address)); + char title[32] = {0}; + char body[128] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = sizeof(body); + msg.screenIndex = 1; + eth2_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_OK); + assert_string_equal(title, "Validator"); + // 0x + 48 bytes * 2 hex chars + NUL = 99 chars. + assert_int_equal(strlen(body), 2 + 48 * 2); + assert_int_equal(body[0], '0'); + assert_int_equal(body[1], 'x'); + // First two hex chars after "0x" must be "ab". + assert_int_equal(body[2], 'a'); + assert_int_equal(body[3], 'b'); +} + +static void test_ui_validator_screen_msg_too_small_rejected(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {0}; + char title[32] = {0}; + char body[2] = {0}; // < 3 bytes + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = body; + msg.msgLength = 2; + msg.screenIndex = 1; + eth2_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + assert_int_equal(msg.result, ETH_PLUGIN_RESULT_ERROR); +} + +static void test_null_parameters_short_circuit(void **state) { + (void) state; + // The plugin defends against a NULL parameter pointer in its + // first dispatcher line. + eth2_plugin_call(ETH_PLUGIN_INIT_CONTRACT, NULL); + // No assertion -- the test passes if no segfault. +} + +// ============================================================================= +// Tests -- remaining parameter offsets in PROVIDE_PARAMETER switch +// ============================================================================= +// The OFFSET checks for the 6 magic-value positions (pubkey offset, +// withdrawal-credentials offset, signature offset, pubkey length, +// withdrawal length, signature length) all follow the same shape: +// the host sends the ABI offset/length value, the plugin compares to +// the expected constant and flips valid=0 on mismatch. Pin the +// remaining ones plus the just-set-OK passthroughs. + +static void test_offset_check_withdrawal_credentials_offset(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 0xE0); // ETH2_WITHDRAWAL_CREDENTIALS_OFFSET + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 1)); + // No flip expected (offset matches). + assert_int_equal(ctx.valid, 1); +} + +static void test_offset_check_signature_offset(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 0x120); // ETH2_SIGNATURE_OFFSET + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 2)); + assert_int_equal(ctx.valid, 1); +} + +static void test_offset_check_withdrawal_credentials_length_must_be_32(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH]; + make_abi_u32(param, 31); // withdrawal-credentials hash is 32 bytes + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 7)); + assert_int_equal(ctx.valid, 0); +} + +static void test_offset_passthrough_deposit_data_root(void **state) { + (void) state; + // Offset *3 (deposit data root), *10, *11, *12 (signature chunks) + // are just `result = OK` -- no state mutation. Pin the passthrough. + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH] = {0}; + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 3)); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 10)); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 11)); + feed_param(&ctx, param, 4 + (PARAMETER_LENGTH * 12)); + assert_int_equal(ctx.valid, 1); +} + +static void test_unknown_parameter_offset_no_effect(void **state) { + (void) state; + // An ABI offset that doesn't match any known field is silently + // ignored (defensive default branch). + eth2_deposit_parameters_t ctx = {.valid = 1}; + uint8_t param[PARAMETER_LENGTH] = {0}; + feed_param(&ctx, param, /*unknown*/ 4 + (PARAMETER_LENGTH * 99)); + assert_int_equal(ctx.valid, 1); +} + +// ============================================================================= +// Tests -- UI screen failures +// ============================================================================= + +// (amountToString failure path is hard to drive without retooling the +// local __wrap_amountToString to honour a per-test failure flag -- +// skip; we already hit 90% on the dossier via the other tests.) + +static void test_ui_unknown_screen_index_silent(void **state) { + (void) state; + eth2_deposit_parameters_t ctx = {.valid = 1}; + char title[16] = {0}; + char msg_buf[64] = {0}; + ethQueryContractUI_t msg = {0}; + msg.pluginContext = (uint8_t *) &ctx; + msg.title = title; + msg.titleLength = sizeof(title); + msg.msg = msg_buf; + msg.msgLength = sizeof(msg_buf); + msg.screenIndex = 99; // not 0 (amount) or 1 (validator) + msg.result = 0xAB; // sentinel + eth2_plugin_call(ETH_PLUGIN_QUERY_CONTRACT_UI, &msg); + // The default branch is a bare `break;` so msg->result stays + // untouched (the test asserts the sentinel persists). + assert_int_equal(msg.result, 0xAB); +} + +// ============================================================================= +// Runner +// ============================================================================= + +int main(void) { + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup(test_init_marks_context_valid, reset), + cmocka_unit_test_setup(test_offset_check_pubkey_offset_correct, reset), + cmocka_unit_test_setup(test_offset_check_pubkey_offset_wrong_flips_valid, reset), + cmocka_unit_test_setup(test_offset_check_pubkey_length_must_be_48, reset), + cmocka_unit_test_setup(test_offset_check_signature_length_must_be_96, reset), + cmocka_unit_test_setup(test_deposit_pubkey_copied_across_two_params, reset), + cmocka_unit_test_setup(test_withdrawal_credentials_match_keeps_valid, reset), + cmocka_unit_test_setup(test_withdrawal_credentials_mismatch_flips_valid, reset), + cmocka_unit_test_setup(test_withdrawal_index_above_max_rejected, reset), + cmocka_unit_test_setup(test_finalize_valid_returns_two_screens, reset), + cmocka_unit_test_setup(test_finalize_invalid_returns_error, reset), + cmocka_unit_test_setup(test_finalize_non_mainnet_rejected, reset), + cmocka_unit_test_setup(test_query_contract_id_eth2_deposit, reset), + cmocka_unit_test_setup(test_ui_amount_screen_uses_chain_ticker, reset), + cmocka_unit_test_setup(test_ui_validator_screen_renders_pubkey_hex, reset), + cmocka_unit_test_setup(test_ui_validator_screen_msg_too_small_rejected, reset), + cmocka_unit_test_setup(test_null_parameters_short_circuit, reset), + cmocka_unit_test_setup(test_offset_check_withdrawal_credentials_offset, reset), + cmocka_unit_test_setup(test_offset_check_signature_offset, reset), + cmocka_unit_test_setup(test_offset_check_withdrawal_credentials_length_must_be_32, reset), + cmocka_unit_test_setup(test_offset_passthrough_deposit_data_root, reset), + cmocka_unit_test_setup(test_unknown_parameter_offset_no_effect, reset), + cmocka_unit_test_setup(test_ui_unknown_screen_index_silent, reset), + }; + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/tests/unit/src/test_param_raw.c b/tests/unit/src/test_param_raw.c index 40972ef260..95aa9476bd 100644 --- a/tests/unit/src/test_param_raw.c +++ b/tests/unit/src/test_param_raw.c @@ -632,6 +632,57 @@ static void test_raw_string(void **state) { assert_true(format_param_raw(&field)); } +/** + * @brief A STRING whose byte count fills the display buffer (no room for NUL) is rejected. + * + * format_string must return false so the field is dropped from the review + * instead of being silently truncated on screen while the full value is hashed. + */ +static void test_raw_string_oversize_rejected(void **state) { + (void) state; + + // Set constant.size = SHARED_CTX_FIELD_1_SIZE (380): value->length + 1 > buf_size. + // format_string rejects before reading any content, so the fact that only 32 + // constant-buf bytes are backing the declared length cannot cause an overread. + s_param_raw param = {.version = 1, + .value = {.type_family = TF_STRING, + .source = SOURCE_CONSTANT, + .constant = {.size = SHARED_CTX_FIELD_1_SIZE}}}; + memset(param.value.constant.buf, 'A', sizeof(param.value.constant.buf)); + + s_field field = {.param_type = PARAM_TYPE_RAW, + .visibility = PARAM_VISIBILITY_ALWAYS, + .constraints = NULL, + .param_raw = param, + .name = "Message"}; + + assert_false(format_param_raw(&field)); +} + +/** + * @brief A STRING containing an embedded NUL byte is rejected. + * + * An embedded NUL would cause the screen to display only the prefix while + * the full byte sequence is included in the instruction hash. + */ +static void test_raw_string_embedded_nul_rejected(void **state) { + (void) state; + + static const uint8_t nul_str[] = {'h', 'e', 'l', '\0', 'o'}; + s_param_raw param = {.version = 1, + .value = {.type_family = TF_STRING, + .source = SOURCE_CONSTANT, + .constant = {.size = sizeof(nul_str)}}}; + memcpy(param.value.constant.buf, nul_str, sizeof(nul_str)); + + s_field field = {.param_type = PARAM_TYPE_RAW, + .visibility = PARAM_VISIBILITY_ALWAYS, + .constraints = NULL, + .param_raw = param, + .name = "Message"}; + + assert_false(format_param_raw(&field)); +} // ============================================================================= // Test runner // ============================================================================= @@ -665,6 +716,8 @@ int main(void) { // STRING tests cmocka_unit_test(test_raw_string), + cmocka_unit_test(test_raw_string_oversize_rejected), + cmocka_unit_test(test_raw_string_embedded_nul_rejected), }; return cmocka_run_group_tests(tests, NULL, NULL);