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[client] main: parse the KVMFR records and log the details

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This commit is contained in:
Geoffrey McRae 2022-01-05 20:27:43 +11:00
parent b3f6c75ade
commit 177a997883
1 changed files with 82 additions and 1 deletions
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83
client/src/main.c
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@ -1250,7 +1250,7 @@ restart:
waitCount = 100;
const bool magicMatches = memcmp(udata->magic, KVMFR_MAGIC, sizeof(udata->magic)) == 0;
if (udataSize < sizeof(KVMFR) || !magicMatches || udata->version != KVMFR_VERSION)
if (udataSize < sizeof(*udata) || !magicMatches || udata->version != KVMFR_VERSION)
{
reportBadVersion();
if (magicMatches)
@ -1280,6 +1280,87 @@ restart:
return -1;
}
/* parse the kvmfr records from the userdata */
udataSize -= sizeof(*udata);
uint8_t * p = (uint8_t *)(udata + 1);
while(udataSize >= sizeof(KVMFRRecord))
{
KVMFRRecord * record = (KVMFRRecord *)p;
p += sizeof(*record);
udataSize -= sizeof(*record);
if (record->size > udataSize)
{
DEBUG_WARN("KVMFRecord size is invalid, aborting parsing.");
break;
}
switch(record->type)
{
case KVMFR_RECORD_VMINFO:
{
KVMFRRecord_VMInfo * vmInfo = (KVMFRRecord_VMInfo *)p;
DEBUG_INFO("SMBIOS UUID : "
"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
vmInfo->uuid[ 0], vmInfo->uuid[ 1], vmInfo->uuid[ 2],
vmInfo->uuid[ 3], vmInfo->uuid[ 4], vmInfo->uuid[ 5],
vmInfo->uuid[ 6], vmInfo->uuid[ 7], vmInfo->uuid[ 8],
vmInfo->uuid[ 9], vmInfo->uuid[10], vmInfo->uuid[11],
vmInfo->uuid[12], vmInfo->uuid[13], vmInfo->uuid[14],
vmInfo->uuid[15]);
DEBUG_INFO("Guest CPU Model: %s", vmInfo->model);
DEBUG_INFO("Guest CPU : %u cores, %u threads",
vmInfo->cores, vmInfo->cpus);
DEBUG_INFO("Capture Device : %s", vmInfo->capture);
bool checkUUID = false;
for(int i = 0; i < 16; ++i)
if (vmInfo->uuid[i])
{
checkUUID = true;
break;
}
if (!checkUUID)
break;
//TODO: compare UUID with the one provided by SPICE if SPICE is in use
break;
}
case KVMFR_RECORD_OSINFO:
{
KVMFRRecord_OSInfo * osInfo = (KVMFRRecord_OSInfo *)p;
static const char * typeStr[] =
{
"Linux",
"BSD",
"OSX",
"Windows",
"Other"
};
const char * type;
if (osInfo->os > ARRAY_LENGTH(typeStr))
type = "Unknown";
else
type = typeStr[osInfo->os];
DEBUG_INFO("Guest OS : %s", type);
DEBUG_INFO("Guest OS Name : %s", osInfo->name);
break;
}
default:
DEBUG_WARN("Unhandled KVMFRecord type: %d", record->type);
break;
}
p += record->size;
udataSize -= record->size;
}
DEBUG_INFO("Host ready, reported version: %s", udata->hostver);
DEBUG_INFO("Starting session");