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Jonathan BennettandClaude Opus 5
e691bd3790
* Lock: give Portduino a real mutex instead of the empty fallback Lock.cpp has a FreeRTOS implementation and an empty one, and Portduino takes the empty one: every lock() and unlock() on a Linux build is a no-op, so concurrency::Lock protects nothing there. TrafficManagementModule's cacheLock and SPILock are both built on it, and native meshtasticd runs the radio and the API on separate threads. Add a pthread implementation under ARCH_PORTDUINO. The timed lock(uint32_t) blocks rather than returning early, because there is no portable timed pthread_mutex_lock across Linux and macOS and returning true without acquiring would leave a caller such as SPILock unlocking a mutex it never took. Targets that have neither FreeRTOS nor pthreads, such as STM32WL, keep the existing empty implementation byte for byte. Co-Authored-By: Jonathan Bennett <jbennett@incomsystems.biz> Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01REkPVFh6kvG4AZJ5A8AtM9 * test: create spiLock in the shared setup, which NodeDB needs and no test had Making Portduino's Lock real turns a latent null dereference into a crash. spiLock is a bare pointer that initSPI() fills in, and only main.cpp calls that, so in a test binary it stays null. NodeDB's constructor reaches it through loadFromDisk(), and while Lock::lock() was an empty function the call never touched `this`, so 23 suites have been calling a method on a null pointer and getting away with it. With a pthread mutex behind it the same call reads through the null pointer and takes SIGSEGV at offset 0x10, which is what test_phone_api_config_dump, test_muted_source, test_nodeinfo_send_window and test_module_config hit. Create it once in initializeTestEnvironment(), which every affected suite calls as the first statement of setup(), before any of them constructs a NodeDB. The guard is the idiom test_xmodem and test_nodedb_identity_hygiene already use; theirs stay correct and become no-ops. test_safefile called initSPI() bare right after the harness, which would now trip its assert, so that call goes away. No firmware behaviour changes: main.cpp still calls initSPI() exactly once, and nothing outside the test harness is touched. Co-Authored-By: Jonathan Bennett <jbennett@incomsystems.biz> Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01REkPVFh6kvG4AZJ5A8AtM9 * test: create cryptLock where a suite reaches it without building a Router Second instance of the same latent null dereference the previous commit fixed for spiLock. cryptLock is a bare pointer that Router's constructor creates (Router.cpp:246); AdminModule::setPassKey takes a LockGuard on it, and a suite that exercises an admin path without standing up a Router leaves it null. While Lock::lock() was empty on Portduino the guard never touched `this`; with a pthread mutex it reads through null, which is test_tak_config's SIGSEGV in handleGetModuleConfig. It cannot go in initializeTestEnvironment() the way spiLock did, because Router asserts cryptLock is unset before allocating its own, so creating it for every suite would break the ones that do build a Router. It is a named helper instead, testEnsureCryptLock(), called by the six suites that reach a cryptLock path with no Router: test_ack_proof, test_admin_session_repro, test_fuzz_packets, test_hop_scaling, test_module_config and test_tak_config. The three that define setup() twice behind a PKI #if get the call only in the branch that compiles the tests in. No firmware behaviour changes; nothing outside test/ is touched. Co-Authored-By: Jonathan Bennett <jbennett@incomsystems.biz> Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01REkPVFh6kvG4AZJ5A8AtM9 * test: create cryptLock in the harness instead of chasing suites Router's constructor asserted cryptLock was unset, then allocated it. That assert is why ten suites carry a mock-router destructor whose only job is to delete the global and null it so the next router can be built. While Lock::lock() was an empty function on Portduino a null cryptLock cost nothing, so those null windows were invisible; with a real mutex, anything reaching perhapsDecode() or the ack-proof paths after one of those destructors runs dereferences null. The fix is the idiom already on the next line of the same constructor, which routingAuthCacheLock has used all along: reuse the lock if one exists. Nothing in src/ ever deleted cryptLock, so a Router that finds one is finding the process's only one. initializeTestEnvironment() can then create it for every suite, the way it now does for spiLock, and the ten teardowns and the per-suite helper from the previous commit all go away. Replaces the six testEnsureCryptLock() call sites with one creation point, and removes the null windows in test_admin_radio, test_mesh_beacon, test_mesh_module, test_mqtt, test_nexthop_routing, test_nodeinfo_send_window, test_traffic_management, test_event_channel_phone_api, test_event_channel_router and test_phone_api_config_dump. Co-Authored-By: Jonathan Bennett <jbennett@incomsystems.biz> Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01REkPVFh6kvG4AZJ5A8AtM9 --------- Co-authored-by: Claude <noreply@anthropic.com>