static gboolean
ResolutionResolutionSetCB(RpcInData *data)
{
uint32 width = 0 ;
uint32 height = 0;
unsigned int index = 0;
gboolean retval = FALSE;
ResolutionInfoType *resInfo = &resolutionInfo;
if (!resInfo->initialized) {
g_debug("%s: FAIL! Request for resolution set but plugin is not initialized\n",
__FUNCTION__);
return RPCIN_SETRETVALS(data, "Invalid guest state: resolution set not initialized", FALSE);
}
/* parse the width and height */
if (!StrUtil_GetNextUintToken(&width, &index, data->args, " ")) {
goto invalid_arguments;
}
if (!StrUtil_GetNextUintToken(&height, &index, data->args, "")) {
goto invalid_arguments;
}
retval = ResolutionSetResolution(width, height);
invalid_arguments:
return RPCIN_SETRETVALS(data, retval ? "" : "Invalid arguments", retval);
}
static gboolean
ResolutionChangeHost3DAvailabilityHintCB(RpcInData *data)
{
unsigned int set;
gboolean success = FALSE;
unsigned int index = 0;
g_debug("%s: enter\n", __FUNCTION__);
if (!StrUtil_GetNextUintToken(&set, &index, data->args, " ")) {
g_debug("%s: invalid arguments\n", __FUNCTION__);
return RPCIN_SETRETVALS(data,
"Invalid arguments. Expected \"set\"",
FALSE);
}
success = ResolutionChangeHost3DAvailabilityHint(set?TRUE:FALSE);
RPCIN_SETRETVALS(data, success ? "" : "ResolutionChangeHost3DAvailabilityHint failed", success);
g_debug("%s: leave\n", __FUNCTION__);
return success;
}
static VMGuestLibError
VMGuestLibUpdateInfo(VMGuestLibHandle handle) // IN
{
char *reply = NULL;
size_t replyLen;
VMGuestLibError ret = VMGUESTLIB_ERROR_INVALID_ARG;
uint32 hostVersion = HANDLE_VERSION(handle);
/*
* Starting with the highest supported protocol (major) version, negotiate
* down to the highest host supported version. Host supports minimum version
* 2.
*/
if (hostVersion == 0) {
hostVersion = VMGUESTLIB_DATA_VERSION;
}
do {
char commandBuf[64];
unsigned int index = 0;
/* Free the last reply when retrying. */
free(reply);
reply = NULL;
/*
* Construct command string with the command name and the version
* of the data struct that we want.
*/
Str_Sprintf(commandBuf, sizeof commandBuf, "%s %d",
VMGUESTLIB_BACKDOOR_COMMAND_STRING,
hostVersion);
/* Send the request. */
if (RpcChannel_SendOne(&reply, &replyLen, commandBuf)) {
VMGuestLibDataV2 *v2reply = (VMGuestLibDataV2 *)reply;
VMSessionId sessionId = HANDLE_SESSIONID(handle);
ASSERT(hostVersion == v2reply->hdr.version);
if (sessionId != 0 && sessionId != v2reply->hdr.sessionId) {
/* Renegotiate protocol if sessionId changed. */
hostVersion = VMGUESTLIB_DATA_VERSION;
HANDLE_SESSIONID(handle) = 0;
continue;
}
ret = VMGUESTLIB_ERROR_SUCCESS;
break;
}
/*
* Host is older and doesn't support the requested protocol version.
* Request the highest version the host supports.
*/
Debug("Failed to retrieve info: %s\n", reply ? reply : "NULL");
if (hostVersion == 2 ||
Str_Strncmp(reply, "Unknown command", sizeof "Unknown command") == 0) {
/*
* Host does not support this feature. Older (v2) host would return
* "Unsupported version" if it doesn't recognize the requested version.
*
* XXX: Maybe use another error code for this case where the host
* product doesn't support this feature?
*/
ret = VMGUESTLIB_ERROR_NOT_ENABLED;
break;
} else if (hostVersion == 3) {
/*
* Host supports v2 at a minimum. If request for v3 fails, then just use
* v2, since v2 host does not send the highest supported version in the
* reply.
*/
hostVersion = 2;
HANDLE_SESSIONID(handle) = 0;
continue;
} else if (!StrUtil_GetNextUintToken(&hostVersion, &index, reply, ":")) {
/*
* v3 and onwards, the host returns the highest major version it supports,
* if the requested version is not supported. So parse out the host
* version from the reply and return error if it didn't.
*/
Debug("Bad reply received from host.\n");
ret = VMGUESTLIB_ERROR_OTHER;
break;
}
ASSERT(hostVersion < VMGUESTLIB_DATA_VERSION);
} while (ret != VMGUESTLIB_ERROR_SUCCESS);
if (ret != VMGUESTLIB_ERROR_SUCCESS) {
goto done;
}
/* Sanity check the results. */
if (replyLen < sizeof hostVersion) {
Debug("Unable to retrieve version\n");
ret = VMGUESTLIB_ERROR_OTHER;
goto done;
}
if (hostVersion == 2) {
VMGuestLibDataV2 *v2reply = (VMGuestLibDataV2 *)reply;
size_t dataSize = sizeof *v2reply;
/* More sanity checks. */
if (v2reply->hdr.version != hostVersion) {
Debug("Incorrect data version returned\n");
ret = VMGUESTLIB_ERROR_OTHER;
goto done;
}
if (replyLen != dataSize) {
Debug("Incorrect data size returned\n");
ret = VMGUESTLIB_ERROR_OTHER;
goto done;
}
/* Store the reply in the handle. */
HANDLE_VERSION(handle) = v2reply->hdr.version;
HANDLE_SESSIONID(handle) = v2reply->hdr.sessionId;
if (HANDLE_DATASIZE(handle) < dataSize) {
/* [Re]alloc if the local handle buffer is not big enough. */
free(HANDLE_DATA(handle));
HANDLE_DATA(handle) = Util_SafeCalloc(1, dataSize);
HANDLE_DATASIZE(handle) = dataSize;
}
memcpy(HANDLE_DATA(handle), reply, replyLen);
/* Make sure resourcePoolPath is NUL terminated. */
v2reply = HANDLE_DATA(handle);
v2reply->resourcePoolPath.value[sizeof v2reply->resourcePoolPath.value - 1] = '\0';
ret = VMGUESTLIB_ERROR_SUCCESS;
} else if (hostVersion == 3) {
VMGuestLibDataV3 *v3reply = (VMGuestLibDataV3 *)reply;
size_t dataSize;
XDR xdrs;
GuestLibV3StatCount count;
VMGuestLibStatisticsV3 *v3stats;
/* More sanity checks. */
if (v3reply->hdr.version != hostVersion) {
Debug("Incorrect data version returned\n");
ret = VMGUESTLIB_ERROR_OTHER;
goto done;
}
if (replyLen < sizeof *v3reply) {
Debug("Incorrect data size returned\n");
ret = VMGUESTLIB_ERROR_OTHER;
goto done;
}
/* 0. Copy the reply version and sessionId to the handle. */
HANDLE_VERSION(handle) = v3reply->hdr.version;
HANDLE_SESSIONID(handle) = v3reply->hdr.sessionId;
/*
* 1. Retrieve the length of the statistics array from the XDR encoded
* part of the reply.
*/
xdrmem_create(&xdrs, v3reply->data, v3reply->dataSize, XDR_DECODE);
if (!xdr_GuestLibV3StatCount(&xdrs, &count)) {
xdr_destroy(&xdrs);
goto done;
}
if (count >= GUESTLIB_MAX_STATISTIC_ID) {
/*
* Host has more than we can process. So process only what this side
* can.
*/
count = GUESTLIB_MAX_STATISTIC_ID - 1;
}
/* 2. [Re]alloc if the local handle buffer is not big enough. */
dataSize = sizeof *v3stats + (count * sizeof (GuestLibV3Stat));
if (HANDLE_DATASIZE(handle) < dataSize) {
free(HANDLE_DATA(handle));
HANDLE_DATA(handle) = Util_SafeCalloc(1, dataSize);
HANDLE_DATASIZE(handle) = dataSize;
}
/* 3. Unmarshal the array of statistics. */
v3stats = HANDLE_DATA(handle);
v3stats->numStats = count;
for (count = 0; count < v3stats->numStats; count++) {
GuestLibV3TypeIds statId = count + 1;
/* Unmarshal the statistic. */
if (!xdr_GuestLibV3Stat(&xdrs, &v3stats->stats[count])) {
break;
}
/* Host sends all the V3 statistics it supports, in order. */
if (v3stats->stats[count].d != statId) {
break;
}
}
if (count >= v3stats->numStats) {
ret = VMGUESTLIB_ERROR_SUCCESS;
} else {
/*
* Error while unmarshalling. Deep-free already unmarshalled
* statistics and invalidate the data in the handle.
*/
GuestLibV3StatCount c;
for (c = 0; c < count; c++) {
VMX_XDR_FREE(xdr_GuestLibV3Stat, &v3stats->stats[c]);
}
HANDLE_SESSIONID(handle) = 0;
}
/* 4. Free resources. */
xdr_destroy(&xdrs);
} else {
/*
* Host should never reply with a higher version protocol than requested.
*/
ret = VMGUESTLIB_ERROR_OTHER;
}
done:
free(reply);
return ret;
}