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Only send device display info to supported agents

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Only send the graphics device display info to agents that advertise the
VD_AGENT_CAP_GRAPHICS_DEVICE_INFO capability

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
This commit is contained in:
Jonathon Jongsma 2019-03-04 13:50:44 -06:00 committed by Frediano Ziglio
parent 6cb0c19daf
commit 4c8b485ac4
1 changed files with 11 additions and 0 deletions
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11
server/reds.c
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@ -234,6 +234,7 @@ struct RedCharDeviceVDIPortPrivate {
gboolean agent_attached;
uint32_t plug_generation;
int client_agent_started;
bool agent_supports_graphics_device_info;
/* write to agent */
RedCharDeviceWriteBuffer *recv_from_client_buf;
@ -486,6 +487,7 @@ static void reds_reset_vdp(RedsState *reds)
dev->priv->write_filter.result = AGENT_MSG_FILTER_DISCARD;
dev->priv->write_filter.discard_all = TRUE;
dev->priv->client_agent_started = FALSE;
dev->priv->agent_supports_graphics_device_info = false;
/* The client's tokens are set once when the main channel is initialized
* and once upon agent's connection with SPICE_MSG_MAIN_AGENT_CONNECTED_TOKENS.
@ -813,6 +815,11 @@ static void reds_adjust_agent_capabilities(RedsState *reds, VDAgentMessage *mess
if (!reds->config->agent_file_xfer) {
VD_AGENT_SET_CAPABILITY(capabilities->caps, VD_AGENT_CAP_FILE_XFER_DISABLED);
}
size_t caps_size = VD_AGENT_CAPS_SIZE_FROM_MSG_SIZE(message->size);
reds->agent_dev->priv->agent_supports_graphics_device_info =
VD_AGENT_HAS_CAPABILITY(capabilities->caps, caps_size, VD_AGENT_CAP_GRAPHICS_DEVICE_INFO);
reds_send_device_display_info(reds);
}
/* reads from the device till completes reading a message that is addressed to the client,
@ -965,6 +972,10 @@ void reds_send_device_display_info(RedsState *reds)
if (!reds->agent_dev->priv->agent_attached) {
return;
}
if (!reds->agent_dev->priv->agent_supports_graphics_device_info) {
return;
}
g_debug("Sending device display info to the agent:");
SpiceMarshaller *m = spice_marshaller_new();