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[client] lgmp: validate frame message alignment

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This commit is contained in:
Geoffrey McRae
2026-08-24 13:15:42 +10:00
parent 357d5fd3c5
commit 957e4ee54b
3 changed files with 15 additions and 5 deletions
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11
client/tests/lgmp_frame_test.c
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@@ -97,11 +97,12 @@ static bool waitForEmpty(TestState * state)
return false;
}
static bool allocMemory(TestState * state, uint32_t size,
static bool allocMemory(TestState * state, uint32_t size, uint32_t alignment,
PLGMPMemory * memory, void ** pointer)
{
CHECK(state->allocationCount < TEST_MAX_ALLOCS);
CHECK(lgmpHostMemAlloc(state->host, size, memory) == LGMP_OK);
CHECK(lgmpHostMemAllocAligned(
state->host, size, alignment, memory) == LGMP_OK);
state->allocations[state->allocationCount++] = *memory;
*pointer = lgmpHostMemPtr(*memory);
return true;
@@ -112,7 +113,8 @@ static bool newFrame(TestState * state, uint32_t serial, TestFrame * result)
const uint32_t size = sizeof(KVMFRFrame) + sizeof(FrameBuffer) +
TEST_FRAME_DATA;
void * pointer;
CHECK(allocMemory(state, size, &result->memory, &pointer));
CHECK(allocMemory(state, size, _Alignof(KVMFRFrame),
&result->memory, &pointer));
result->wire = pointer;
result->wire->formatVer = 1;
@@ -199,7 +201,8 @@ static bool testMalformed(TestState * state)
PLGMPMemory shortMemory;
void * shortPointer;
CHECK(allocMemory(state, sizeof(KVMFRFrame) - 4, &shortMemory,
CHECK(allocMemory(state, sizeof(KVMFRFrame) - 4, _Alignof(uint32_t),
&shortMemory,
&shortPointer));
CHECK(lgmpHostQueuePost(state->queues[0], 0, shortMemory) == LGMP_OK);
LG_TransportFrame result;

3
client/tests/lgmp_transport_test.c
View File

@@ -381,7 +381,8 @@ int main(void)
};
const uint32_t frameSize =
sizeof(KVMFRFrame) + sizeof(FrameBuffer) + sizeof(uint32_t);
CHECK(lgmpHostMemAlloc(host, frameSize, &frameMemory) == LGMP_OK);
CHECK(lgmpHostMemAllocAligned(host, frameSize, _Alignof(KVMFRFrame),
&frameMemory) == LGMP_OK);
KVMFRFrame * wireFrame = lgmpHostMemPtr(frameMemory);
wireFrame->formatVer = 1;
wireFrame->frameSerial = 1;