[PATCH spice 1/2] Filter agent capabilites messages

[Pavel Grunt <pgrunt@xxxxxxxxxx>]

It will be used to announce disabled caps to the client

Related: rhbz#1373725
---
 server/agent-msg-filter.c            | 3 +++
 server/agent-msg-filter.h            | 1 +
 server/reds.c                        | 6 ++++++
 server/tests/test-agent-msg-filter.c | 8 ++++++--
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/server/agent-msg-filter.c b/server/agent-msg-filter.c
index 17f8e889..0791089d 100644
--- a/server/agent-msg-filter.c
+++ b/server/agent-msg-filter.c
@@ -109,6 +109,9 @@ data_to_read:
                 filter->result = AGENT_MSG_FILTER_OK;
             }
             break;
+        case VD_AGENT_ANNOUNCE_CAPABILITIES:
+            filter->result = AGENT_MSG_FILTER_CAPABILITIES;
+            break;
         default:
             filter->result = AGENT_MSG_FILTER_OK;
         }
diff --git a/server/agent-msg-filter.h b/server/agent-msg-filter.h
index b4d8e720..d5636737 100644
--- a/server/agent-msg-filter.h
+++ b/server/agent-msg-filter.h
@@ -30,6 +30,7 @@ typedef enum {
     AGENT_MSG_FILTER_DISCARD,
     AGENT_MSG_FILTER_PROTO_ERROR,
     AGENT_MSG_FILTER_MONITORS_CONFIG,
+    AGENT_MSG_FILTER_CAPABILITIES,
 } AgentMsgFilterResult;
 
 typedef struct AgentMsgFilter {
diff --git a/server/reds.c b/server/reds.c
index 3b30928a..3127b188 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -795,6 +795,8 @@ static RedPipeItem *vdi_port_read_one_msg_from_device(RedCharDevice *self,
                 dev->priv->read_state = VDI_PORT_READ_STATE_GET_BUFF;
             }
             switch (vdi_port_read_buf_process(reds->agent_dev, dispatch_buf)) {
+            case AGENT_MSG_FILTER_CAPABILITIES:
+                /* fall through */
             case AGENT_MSG_FILTER_OK:
                 return &dispatch_buf->base;
             case AGENT_MSG_FILTER_PROTO_ERROR:
@@ -1108,6 +1110,8 @@ void reds_on_main_agent_data(RedsState *reds, MainChannelClient *mcc, void *mess
     res = agent_msg_filter_process_data(&reds->agent_dev->priv->write_filter,
                                         message, size);
     switch (res) {
+    case AGENT_MSG_FILTER_CAPABILITIES:
+        /* fall through */
     case AGENT_MSG_FILTER_OK:
         break;
     case AGENT_MSG_FILTER_DISCARD:
@@ -1185,6 +1189,8 @@ void reds_on_main_channel_migrate(RedsState *reds, MainChannelClient *mcc)
 
         read_buf->len = read_data_len;
         switch (vdi_port_read_buf_process(reds->agent_dev, read_buf)) {
+        case AGENT_MSG_FILTER_CAPABILITIES:
+            /* fall through */
         case AGENT_MSG_FILTER_OK:
             main_channel_client_push_agent_data(mcc,
                                                 read_buf->data,
diff --git a/server/tests/test-agent-msg-filter.c b/server/tests/test-agent-msg-filter.c
index 2f5568a6..260c6409 100644
--- a/server/tests/test-agent-msg-filter.c
+++ b/server/tests/test-agent-msg-filter.c
@@ -98,9 +98,10 @@ static void test_agent_msg_filter_run(void)
     /* forward everything to the agent */
     agent_msg_filter_init(&filter, TRUE, TRUE, FALSE, FALSE);
     for (type = VD_AGENT_MOUSE_STATE; type < VD_AGENT_END_MESSAGE; type++) {
+        AgentMsgFilterResult result = (type != VD_AGENT_ANNOUNCE_CAPABILITIES) ?
+                                      AGENT_MSG_FILTER_OK : AGENT_MSG_FILTER_CAPABILITIES;
         msg.msg_header.type = type;
-        g_assert_cmpint(agent_msg_filter_process_data(&filter, msg.data, len), ==,
-                        AGENT_MSG_FILTER_OK);
+        g_assert_cmpint(agent_msg_filter_process_data(&filter, msg.data, len), ==, result);
     }
 
     /* filter everything */
@@ -121,6 +122,9 @@ static void test_agent_msg_filter_run(void)
         case VD_AGENT_MONITORS_CONFIG:
             result = AGENT_MSG_FILTER_MONITORS_CONFIG;
             break;
+        case VD_AGENT_ANNOUNCE_CAPABILITIES:
+            result = AGENT_MSG_FILTER_CAPABILITIES;
+            break;
         default:
             result = AGENT_MSG_FILTER_OK;
         }
-- 
2.11.0

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