@@ -2848,7 +2848,7 @@ char *vnc_display_local_addr(DisplayState *ds)
return vnc_socket_local_addr("%s:%s", vs->lsock);
}
-int vnc_display_open(DisplayState *ds, const char *display)
+void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
{
VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
const char *options;
@@ -2866,11 +2866,13 @@ int vnc_display_open(DisplayState *ds, const char *display)
#endif
int lock_key_sync = 1;
- if (!vnc_display)
- return -1;
+ if (!vnc_display) {
+ error_setg(errp, "VNC display not active");
+ return;
+ }
vnc_display_close(ds);
if (strcmp(display, "none") == 0)
- return 0;
+ return;
vs->display = g_strdup(display);
vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
@@ -2880,10 +2882,10 @@ int vnc_display_open(DisplayState *ds, const char *display)
options++;
if (strncmp(options, "password", 8) == 0) {
if (fips_get_state()) {
- fprintf(stderr,
- "VNC password auth disabled due to FIPS mode, "
- "consider using the VeNCrypt or SASL authentication "
- "methods as an alternative\n");
+ error_setg(errp,
+ "VNC password auth disabled due to FIPS mode, "
+ "consider using the VeNCrypt or SASL authentication "
+ "methods as an alternative");
goto fail;
}
password = 1; /* Require password auth */
@@ -2914,13 +2916,13 @@ int vnc_display_open(DisplayState *ds, const char *display)
VNC_DEBUG("Trying certificate path '%s'\n", path);
if (vnc_tls_set_x509_creds_dir(vs, path) < 0) {
- fprintf(stderr, "Failed to find x509 certificates/keys in %s\n", path);
+ error_setg(errp, "Failed to find x509 certificates/keys in %s", path);
g_free(path);
goto fail;
}
g_free(path);
} else {
- fprintf(stderr, "No certificate path provided\n");
+ error_setg(errp, "No certificate path provided");
goto fail;
}
#endif
@@ -2940,7 +2942,7 @@ int vnc_display_open(DisplayState *ds, const char *display)
} else if (strncmp(options+6, "force-shared", 12) == 0) {
vs->share_policy = VNC_SHARE_POLICY_FORCE_SHARED;
} else {
- fprintf(stderr, "unknown vnc share= option\n");
+ error_setg(errp, "unknown vnc share= option");
goto fail;
}
}
@@ -3042,8 +3044,8 @@ int vnc_display_open(DisplayState *ds, const char *display)
#ifdef CONFIG_VNC_SASL
if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) {
- fprintf(stderr, "Failed to initialize SASL auth %s",
- sasl_errstring(saslErr, NULL, NULL));
+ error_setg(errp, "Failed to initialize SASL auth: %s",
+ sasl_errstring(saslErr, NULL, NULL));
goto fail;
}
#endif
@@ -3054,9 +3056,9 @@ int vnc_display_open(DisplayState *ds, const char *display)
int csock;
vs->lsock = -1;
if (strncmp(display, "unix:", 5) == 0) {
- csock = unix_connect(display+5, NULL);
+ csock = unix_connect(display+5, errp);
} else {
- csock = inet_connect(display, NULL);
+ csock = inet_connect(display, errp);
}
if (csock < 0) {
goto fail;
@@ -3068,10 +3070,10 @@ int vnc_display_open(DisplayState *ds, const char *display)
dpy = g_malloc(256);
if (strncmp(display, "unix:", 5) == 0) {
pstrcpy(dpy, 256, "unix:");
- vs->lsock = unix_listen(display+5, dpy+5, 256-5, NULL);
+ vs->lsock = unix_listen(display+5, dpy+5, 256-5, errp);
} else {
vs->lsock = inet_listen(display, dpy, 256,
- SOCK_STREAM, 5900, NULL);
+ SOCK_STREAM, 5900, errp);
}
if (vs->lsock < 0) {
g_free(dpy);
@@ -3081,12 +3083,14 @@ int vnc_display_open(DisplayState *ds, const char *display)
vs->display = dpy;
qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs);
}
- return 0;
+ return;
fail:
+ if (!error_is_set(errp)) {
+ error_set(errp, QERR_VNC_SERVER_FAILED, display);
+ }
g_free(vs->display);
vs->display = NULL;
- return -1;
}
void vnc_display_add_client(DisplayState *ds, int csock, int skipauth)
@@ -3706,10 +3706,13 @@ int main(int argc, char **argv, char **envp)
#ifdef CONFIG_VNC
/* init remote displays */
if (vnc_display) {
+ Error *local_err = NULL;
vnc_display_init(ds);
- if (vnc_display_open(ds, vnc_display) < 0) {
- fprintf(stderr, "Failed to start VNC server on `%s'\n",
- vnc_display);
+ vnc_display_open(ds, vnc_display, &local_err);
+ if (local_err != NULL) {
+ fprintf(stderr, "Failed to start VNC server on `%s': %s\n",
+ vnc_display, error_get_pretty(local_err));
+ error_free(local_err);
exit(1);
}
Before: $ qemu-system-x86_64 -vnc foo.bar:12345 getaddrinfo(foo.bar,18245): Name or service not known Failed to start VNC server on `foo.bar:12345' $ qemu-system-x86_64 -vnc localhost:12345,reverse=on inet_connect_opts: connect(ipv4,yakj.usersys.redhat.com,127.0.0.1,12345): Connection refused Failed to start VNC server on `localhost:12345,reverse=on' After: $ x86_64-softmmu/qemu-system-x86_64 -vnc foo.bar:12345 Failed to start VNC server on `foo.bar:12345': address resolution failed for foo.bar:18245: Name or service not known $ x86_64-softmmu/qemu-system-x86_64 -vnc localhost:12345,reverse=on Failed to start VNC server on `localhost:12345,reverse=on': Failed to connect to socket: Connection refused Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- ui/vnc.c | 42 +++++++++++++++++++++++------------------- vl.c | 9 ++++++--- 2 file modificati, 29 inserzioni(+), 22 rimozioni(-)