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fix regression due to callback called earlier

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Patch 1f21008060 ("Remove use of global
'reds' from AgentMsgFilter") introduced a regression. This because
QXLInterface->client_monitors_config was called before returning
from spice_add_interface. Some client of spice-server expect the
spice_add_interface already returned and some state change was done
before client_monitors_config was called.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Pavel Grunt <pgrunt@redhat.com>
This commit is contained in:
Frediano Ziglio 2016-02-17 21:36:33 +00:00
parent aa724b170b
commit a1e62fa5ae
3 changed files with 9 additions and 17 deletions
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5
server/agent-msg-filter.c
View File

@ -29,17 +29,16 @@
void agent_msg_filter_init(struct AgentMsgFilter *filter,
gboolean copy_paste, gboolean file_xfer,
gboolean use_client_monitors_config,
int discard_all)
{
memset(filter, 0, sizeof(*filter));
filter->copy_paste_enabled = copy_paste;
filter->file_xfer_enabled = file_xfer;
filter->use_client_monitors_config = use_client_monitors_config;
filter->discard_all = discard_all;
}
int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
RedsState *reds,
uint8_t *data, uint32_t len)
{
struct VDAgentMessage msg_header;
@ -96,7 +95,7 @@ data_to_read:
}
break;
case VD_AGENT_MONITORS_CONFIG:
if (filter->use_client_monitors_config) {
if (reds_use_client_monitors_config(reds)) {
filter->result = AGENT_MSG_FILTER_MONITORS_CONFIG;
} else {
filter->result = AGENT_MSG_FILTER_OK;

3
server/agent-msg-filter.h
View File

@ -37,15 +37,14 @@ typedef struct AgentMsgFilter {
int result;
gboolean copy_paste_enabled;
gboolean file_xfer_enabled;
gboolean use_client_monitors_config;
gboolean discard_all;
} AgentMsgFilter;
void agent_msg_filter_init(struct AgentMsgFilter *filter,
gboolean copy_paste, gboolean file_xfer,
gboolean use_client_monitors_config,
gboolean discard_all);
int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
SpiceServer *reds,
uint8_t *data, uint32_t len);
#endif

18
server/reds.c
View File

@ -407,8 +407,7 @@ static void reds_reset_vdp(RedsState *reds)
}
/* Reset read filter to start with clean state when the agent reconnects */
agent_msg_filter_init(&state->read_filter, reds->agent_copypaste,
reds->agent_file_xfer,
reds_use_client_monitors_config(reds), TRUE);
reds->agent_file_xfer, TRUE);
/* Throw away pending chunks from the current (if any) and future
* messages written by the client.
* TODO: client should clear its agent messages queue when the agent
@ -522,8 +521,7 @@ void reds_client_disconnect(RedsState *reds, RedClient *client)
/* Reset write filter to start with clean state on client reconnect */
agent_msg_filter_init(&reds->agent_state.write_filter, reds->agent_copypaste,
reds->agent_file_xfer,
reds_use_client_monitors_config(reds), TRUE);
reds->agent_file_xfer, TRUE);
/* Throw away pending chunks from the current (if any) and future
* messages read from the agent */
@ -639,7 +637,7 @@ static int vdi_port_read_buf_process(RedsState *reds, VDIReadBuf *buf)
switch (state->vdi_chunk_header.port) {
case VDP_CLIENT_PORT: {
res = agent_msg_filter_process_data(&state->read_filter,
res = agent_msg_filter_process_data(&state->read_filter, reds,
buf->data, buf->len);
switch (res) {
case AGENT_MSG_FILTER_OK:
@ -1049,7 +1047,7 @@ void reds_on_main_agent_data(RedsState *reds, MainChannelClient *mcc, void *mess
VDIChunkHeader *header;
int res;
res = agent_msg_filter_process_data(&reds->agent_state.write_filter,
res = agent_msg_filter_process_data(&reds->agent_state.write_filter, reds,
message, size);
switch (res) {
case AGENT_MSG_FILTER_OK:
@ -3214,8 +3212,6 @@ SPICE_GNUC_VISIBLE int spice_server_add_interface(SpiceServer *s,
red_dispatcher_init(qxl);
dispatcher = qxl->st->dispatcher;
reds->dispatchers = g_list_prepend(reds->dispatchers, dispatcher);
reds->agent_state.write_filter.use_client_monitors_config = reds_use_client_monitors_config(reds);
reds->agent_state.read_filter.use_client_monitors_config = reds_use_client_monitors_config(reds);
/* this function has to be called after the dispatcher is on the list
* as QXLInstance clients expect the dispatcher to be on the list when
@ -3321,11 +3317,9 @@ static void reds_init_vd_agent_resources(RedsState *reds)
ring_init(&state->read_bufs);
agent_msg_filter_init(&state->write_filter, reds->agent_copypaste,
reds->agent_file_xfer,
reds_use_client_monitors_config(reds), TRUE);
reds->agent_file_xfer, TRUE);
agent_msg_filter_init(&state->read_filter, reds->agent_copypaste,
reds->agent_file_xfer,
reds_use_client_monitors_config(reds), TRUE);
reds->agent_file_xfer, TRUE);
state->read_state = VDI_PORT_READ_STATE_READ_HEADER;
state->receive_pos = (uint8_t *)&state->vdi_chunk_header;