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authorDaniel P. Berrangé <berrange@redhat.com>2025-06-04 17:14:38 +0100
committerDaniel P. Berrangé <berrange@redhat.com>2025-07-16 11:27:30 +0100
commit8fc3d63d685751734fb9c8c0284dc44a36a8e053 (patch)
tree6ffac2995a9a4b65f41b7e771f22a4a328616e69 /ui/vnc.c
parent3ac6daa9e1c5d7dae2a3cd1c6a388174b462f3e8 (diff)
downloadfocaccia-qemu-8fc3d63d685751734fb9c8c0284dc44a36a8e053.tar.gz
focaccia-qemu-8fc3d63d685751734fb9c8c0284dc44a36a8e053.zip
ui: add trace events for all client messages
This lets us see the full flow of RFB messages received from the
client.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'ui/vnc.c')
-rw-r--r--ui/vnc.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/ui/vnc.c b/ui/vnc.c
index a16be468b9..c309882ddb 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -2314,6 +2314,25 @@ static void set_pixel_format(VncState *vs, int bits_per_pixel,
     vs->client_pf.bytes_per_pixel = bits_per_pixel / 8;
     vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
     vs->client_endian = big_endian_flag ? G_BIG_ENDIAN : G_LITTLE_ENDIAN;
+    trace_vnc_client_pixel_format(vs, vs->ioc,
+                                  vs->client_pf.bits_per_pixel,
+                                  vs->client_pf.depth,
+                                  vs->client_endian);
+    trace_vnc_client_pixel_format_red(vs, vs->ioc,
+                                      vs->client_pf.rmax,
+                                      vs->client_pf.rbits,
+                                      vs->client_pf.rshift,
+                                      vs->client_pf.rmask);
+    trace_vnc_client_pixel_format_green(vs, vs->ioc,
+                                        vs->client_pf.gmax,
+                                        vs->client_pf.gbits,
+                                        vs->client_pf.gshift,
+                                        vs->client_pf.gmask);
+    trace_vnc_client_pixel_format_blue(vs, vs->ioc,
+                                       vs->client_pf.bmax,
+                                       vs->client_pf.bbits,
+                                       vs->client_pf.bshift,
+                                       vs->client_pf.bmask);
 
     if (!true_color_flag) {
         send_color_map(vs);
@@ -2388,6 +2407,17 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
         if (len == 1)
             return 20;
 
+        trace_vnc_msg_client_set_pixel_format(vs, vs->ioc,
+                                              read_u8(data, 4),
+                                              read_u8(data, 6),
+                                              read_u8(data, 7));
+        trace_vnc_msg_client_set_pixel_format_rgb(vs, vs->ioc,
+                                                  read_u16(data, 8),
+                                                  read_u16(data, 10),
+                                                  read_u16(data, 12),
+                                                  read_u8(data, 14),
+                                                  read_u8(data, 15),
+                                                  read_u8(data, 16));
         set_pixel_format(vs, read_u8(data, 4),
                          read_u8(data, 6), read_u8(data, 7),
                          read_u16(data, 8), read_u16(data, 10),
@@ -2410,12 +2440,19 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
             memcpy(data + 4 + (i * 4), &val, sizeof(val));
         }
 
+        trace_vnc_msg_client_set_encodings(vs, vs->ioc, limit);
         set_encodings(vs, (int32_t *)(data + 4), limit);
         break;
     case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST:
         if (len == 1)
             return 10;
 
+        trace_vnc_msg_client_framebuffer_update_request(vs, vs->ioc,
+                                                        read_u8(data, 1),
+                                                        read_u16(data, 2),
+                                                        read_u16(data, 4),
+                                                        read_u16(data, 6),
+                                                        read_u16(data, 8));
         framebuffer_update_request(vs,
                                    read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
                                    read_u16(data, 6), read_u16(data, 8));
@@ -2424,12 +2461,19 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
         if (len == 1)
             return 8;
 
+        trace_vnc_msg_client_key_event(vs, vs->ioc,
+                                       read_u8(data, 1),
+                                       read_u32(data, 4));
         key_event(vs, read_u8(data, 1), read_u32(data, 4));
         break;
     case VNC_MSG_CLIENT_POINTER_EVENT:
         if (len == 1)
             return 6;
 
+        trace_vnc_msg_client_pointer_event(vs, vs->ioc,
+                                           read_u8(data, 1),
+                                           read_u16(data, 2),
+                                           read_u16(data, 4));
         pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
         break;
     case VNC_MSG_CLIENT_CUT_TEXT:
@@ -2461,9 +2505,12 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
                 vnc_client_error(vs);
                 break;
             }
+            trace_vnc_msg_client_cut_text_ext(vs, vs->ioc,
+                                              dlen, read_u32(data, 8));
             vnc_client_cut_text_ext(vs, dlen, read_u32(data, 8), data + 12);
             break;
         }
+        trace_vnc_msg_client_cut_text(vs, vs->ioc, read_u32(data, 4));
         vnc_client_cut_text(vs, read_u32(data, 4), data + 8);
         break;
     case VNC_MSG_CLIENT_XVP:
@@ -2478,6 +2525,7 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
         if (len == 4) {
             uint8_t version = read_u8(data, 2);
             uint8_t action = read_u8(data, 3);
+            trace_vnc_msg_client_xvp(vs, vs->ioc, version, action);
 
             if (version != 1) {
                 error_report("vnc: xvp client message version %d != 1",
@@ -2511,6 +2559,10 @@ static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
             if (len == 2)
                 return 12;
 
+            trace_vnc_msg_client_ext_key_event(vs, vs->ioc,
+                                               read_u16(data, 2),
+                                               read_u32(data, 4),
+                                               read_u32(data, 8));
             ext_key_event(vs, read_u16(data, 2),
                           read_u32(data, 4), read_u32(data, 8));
             break;