Wait for capabilities message from Xorg
This commit adds a stage into the Xorg connection status to wait for the capabilities message from the Xorg server. This allows us to move the xorgxrdp version check to xrdp from the X server for better reporting to the user.
This commit is contained in:
matt335672
parent
ba0b6fd6fe
commit
5111cebec1
148
xup/xup.c
148
xup/xup.c
@ -146,6 +146,72 @@ lib_data_in(struct trans *trans)
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return 0;
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}
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/******************************************************************************/
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/*
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* Wait for module caps message from Xorg module
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*
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* This routine waits for the Xorg module to send a caps message.
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*
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* We use this to check the caps are compatible with us before we
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* go for a fuull-on connect
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*/
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static int
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wait_for_module_caps_message(struct mod *mod)
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{
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int robjs_count;
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intptr_t robjs[10];
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mod->caps_processing_status = E_CAPS_NOT_PROCESSED;
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while (mod->caps_processing_status == E_CAPS_NOT_PROCESSED)
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{
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robjs_count = 0;
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if (trans_get_wait_objs(mod->trans, robjs, &robjs_count) != 0)
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{
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LOG(LOG_LEVEL_ERROR, "Xorg module has dropped connection");
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return 1;
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}
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// We don't need a big timeout here, as all the module has to do is
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// turn around the version message.
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int status = g_obj_wait(robjs, robjs_count, 0, 0, 3 * 1000);
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if (status < 0)
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{
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LOG(LOG_LEVEL_ERROR, "No response from Xorg module before timeout");
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return 1;
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}
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(void)trans_check_wait_objs(mod->trans);
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}
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return (mod->caps_processing_status == E_CAPS_OK) ? 0 : 1;
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}
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/******************************************************************************/
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/* return error */
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static int
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lib_send_client_info(struct mod *mod)
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{
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struct stream *s;
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int len;
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LOG_DEVEL(LOG_LEVEL_TRACE, "lib_send_client_info:");
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make_stream(s);
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 104);
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g_memcpy(s->p, &(mod->client_info), sizeof(mod->client_info));
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s->p += sizeof(mod->client_info);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send_copy(mod, s);
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free_stream(s);
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return 0;
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}
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/******************************************************************************/
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/* return error */
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static int
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@ -220,26 +286,32 @@ lib_mod_connect(struct mod *mod)
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free_stream(s);
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return 1;
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}
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// Set the transport up
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mod->trans->si = mod->si;
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mod->trans->my_source = XRDP_SOURCE_MOD;
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mod->trans->is_term = mod->server_is_term;
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mod->trans->trans_data_in = lib_data_in;
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mod->trans->header_size = 8;
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mod->trans->callback_data = mod;
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mod->trans->no_stream_init_on_data_in = 1;
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mod->trans->extra_flags = 1;
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/* Give the X server a bit of time to start */
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if (trans_connect(mod->trans, mod->ip, con_port, 30 * 1000) == 0)
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error = trans_connect(mod->trans, mod->ip, con_port, 30 * 1000);
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if (error == 0)
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{
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LOG_DEVEL(LOG_LEVEL_INFO, "lib_mod_connect: connected to Xserver "
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"(Xorg) sck %lld",
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(long long) (mod->trans->sck));
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if (socket_mode == TRANS_MODE_UNIX)
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{
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lib_mod_log_peer(mod);
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}
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}
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else
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{
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mod->server_msg(mod, "connection problem, giving up", 0);
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error = 1;
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}
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if (error == 0 && socket_mode == TRANS_MODE_UNIX)
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{
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lib_mod_log_peer(mod);
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}
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if (error == 0)
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@ -247,6 +319,16 @@ lib_mod_connect(struct mod *mod)
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error = send_server_version_message(mod, s);
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}
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if (error == 0)
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{
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error = wait_for_module_caps_message(mod);
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}
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if (error == 0)
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{
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error = lib_send_client_info(mod);
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}
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if (error == 0)
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{
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error = send_server_monitor_full_invalidate(
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@ -259,21 +341,14 @@ lib_mod_connect(struct mod *mod)
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{
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trans_delete(mod->trans);
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mod->trans = 0;
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mod->server_msg(mod, "some problem", 0);
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return 1;
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mod->server_msg(mod, "Error connecting to Xorg - check log", 0);
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}
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else
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{
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mod->server_msg(mod, "connected ok", 0);
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mod->trans->trans_data_in = lib_data_in;
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mod->trans->header_size = 8;
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mod->trans->callback_data = mod;
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mod->trans->no_stream_init_on_data_in = 1;
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mod->trans->extra_flags = 1;
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}
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LOG_DEVEL(LOG_LEVEL_TRACE, "out lib_mod_connect");
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return 0;
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return error;
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}
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/******************************************************************************/
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@ -1708,30 +1783,6 @@ lib_mod_process_orders(struct mod *mod, int type, struct stream *s)
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return rv;
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}
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/******************************************************************************/
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/* return error */
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static int
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lib_send_client_info(struct mod *mod)
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{
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struct stream *s;
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int len;
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LOG_DEVEL(LOG_LEVEL_TRACE, "lib_send_client_info:");
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make_stream(s);
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init_stream(s, 8192);
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s_push_layer(s, iso_hdr, 4);
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out_uint16_le(s, 104);
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g_memcpy(s->p, &(mod->client_info), sizeof(mod->client_info));
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s->p += sizeof(mod->client_info);
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s_mark_end(s);
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len = (int)(s->end - s->data);
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s_pop_layer(s, iso_hdr);
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out_uint32_le(s, len);
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lib_send_copy(mod, s);
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free_stream(s);
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return 0;
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}
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/******************************************************************************/
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/* return error */
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static int
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@ -1743,6 +1794,7 @@ lib_mod_process_message(struct mod *mod, struct stream *s)
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int len;
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int type;
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char *phold;
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int version;
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int width;
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int height;
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@ -1769,6 +1821,7 @@ lib_mod_process_message(struct mod *mod, struct stream *s)
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}
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else if (type == 2) /* caps */
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{
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mod->caps_processing_status = E_CAPS_OK; /* Assume all OK */
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LOG_DEVEL(LOG_LEVEL_TRACE,
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"lib_mod_process_message: type 2 len %d", len);
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for (index = 0; index < num_orders; index++)
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@ -1779,6 +1832,20 @@ lib_mod_process_message(struct mod *mod, struct stream *s)
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switch (type)
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{
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case 100:
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in_uint32_le(s, version);
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if (version != CLIENT_INFO_CURRENT_VERSION)
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{
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LOG(LOG_LEVEL_ERROR,
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"Xorg module has version %d, expected %d",
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version, CLIENT_INFO_CURRENT_VERSION);
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mod->server_msg(mod,
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"Xorg module has wrong version number",
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0);
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mod->caps_processing_status = E_CAPS_NOT_OK;
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}
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break;
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default:
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LOG_DEVEL(LOG_LEVEL_TRACE,
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"lib_mod_process_message: unknown"
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@ -1788,7 +1855,6 @@ lib_mod_process_message(struct mod *mod, struct stream *s)
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}
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s->p = phold + len;
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}
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lib_send_client_info(mod);
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}
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else if (type == 3) /* order list with len after type */
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{
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12
xup/xup.h
12
xup/xup.h
@ -21,6 +21,17 @@
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#ifndef XUP_H
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#define XUP_H
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/**
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* Enum for the states used to process a
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* capabilities message from the Xorg module
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*/
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enum caps_processing_status
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{
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E_CAPS_NOT_PROCESSED, ///< Capabilities mesage from module not processed
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E_CAPS_OK, ///< Capabilities are OK
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E_CAPS_NOT_OK ///< Capabilities are not OK
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};
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/* include other h files */
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#include "arch.h"
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#include "parse.h"
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@ -202,6 +213,7 @@ struct mod
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char *screen_shmem_pixels;
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struct trans *trans;
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char keycode_set[32];
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enum caps_processing_status caps_processing_status;
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};
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#endif // XUP_H
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