Merge pull request #523 from jsorg71/vpf
vnc: change password file to use guid hash
This commit is contained in:
commit
bbae1a98c6
@ -2530,6 +2530,34 @@ g_htoi(char *str)
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return rv;
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}
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/*****************************************************************************/
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/* returns number of bytes copied into out_str */
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int APP_CC
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g_bytes_to_hexstr(const void *bytes, int num_bytes, char *out_str,
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int bytes_out_str)
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{
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int rv;
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int index;
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char *lout_str;
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const tui8 *lbytes;
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rv = 0;
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lbytes = (const tui8 *) bytes;
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lout_str = out_str;
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for (index = 0; index < num_bytes; index++)
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{
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if (bytes_out_str < 3)
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{
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break;
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}
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g_snprintf(lout_str, bytes_out_str, "%2.2x", lbytes[index]);
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lout_str += 2;
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bytes_out_str -= 2;
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rv += 2;
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}
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return rv;
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}
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/*****************************************************************************/
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int APP_CC
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g_pos(const char *str, const char *to_find)
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@ -134,6 +134,8 @@ int APP_CC g_strcasecmp(const char* c1, const char* c2);
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int APP_CC g_strncasecmp(const char* c1, const char* c2, int len);
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int APP_CC g_atoi(const char* str);
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int APP_CC g_htoi(char* str);
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int APP_CC g_bytes_to_hexstr(const void *bytes, int num_bytes, char *out_str,
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int bytes_out_str);
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int APP_CC g_pos(const char* str, const char* to_find);
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int APP_CC g_mbstowcs(twchar* dest, const char* src, int n);
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int APP_CC g_wcstombs(char* dest, const twchar* src, int n);
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@ -415,6 +415,21 @@ scp_session_set_addr(struct SCP_SESSION *s, int type, const void *addr)
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return 0;
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}
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/*******************************************************************/
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int
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scp_session_set_guid(struct SCP_SESSION *s, const tui8 *guid)
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{
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if (0 == guid)
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{
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log_message(LOG_LEVEL_WARNING, "[session:%d] set_guid: null guid", __LINE__);
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return 1;
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}
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g_memcpy(s->guid, guid, 16);
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return 0;
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}
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/*******************************************************************/
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void
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scp_session_destroy(struct SCP_SESSION *s)
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@ -91,6 +91,9 @@ scp_session_set_display(struct SCP_SESSION* s, SCP_DISPLAY display);
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int
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scp_session_set_errstr(struct SCP_SESSION* s, const char *str);
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int
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scp_session_set_guid(struct SCP_SESSION *s, const tui8 *guid);
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/**
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*
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* @brief destroys a session object
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@ -88,6 +88,7 @@ struct SCP_SESSION
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char* program;
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char* directory;
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char* client_ip;
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tui8 guid[16];
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};
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struct SCP_DISCONNECTED_SESSION
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@ -364,13 +364,20 @@ scp_v0s_accept(struct SCP_CONNECTION *c, struct SCP_SESSION **s, int skipVchk)
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/******************************************************************************/
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enum SCP_SERVER_STATES_E
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scp_v0s_allow_connection(struct SCP_CONNECTION *c, SCP_DISPLAY d)
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scp_v0s_allow_connection(struct SCP_CONNECTION *c, SCP_DISPLAY d, const tui8 *guid)
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{
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int msg_size;
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msg_size = guid == 0 ? 14 : 14 + 16;
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out_uint32_be(c->out_s, 0); /* version */
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out_uint32_be(c->out_s, 14); /* size */
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out_uint32_be(c->out_s, msg_size); /* size */
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out_uint16_be(c->out_s, 3); /* cmd */
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out_uint16_be(c->out_s, 1); /* data */
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out_uint16_be(c->out_s, d); /* data */
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if (msg_size > 14)
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{
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out_uint8a(c->out_s, guid, 16);
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}
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s_mark_end(c->out_s);
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if (0 != scp_tcp_force_send(c->in_sck, c->out_s->data, c->out_s->end - c->out_s->data))
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@ -61,7 +61,7 @@ scp_v0s_accept(struct SCP_CONNECTION* c, struct SCP_SESSION** s, int skipVchk);
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*
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*/
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enum SCP_SERVER_STATES_E
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scp_v0s_allow_connection(struct SCP_CONNECTION* c, SCP_DISPLAY d);
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scp_v0s_allow_connection(struct SCP_CONNECTION* c, SCP_DISPLAY d, const tui8 *guid);
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/**
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*
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@ -77,7 +77,7 @@ scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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if (s_item != 0)
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{
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display = s_item->display;
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g_memcpy(s->guid, s_item->guid, 16);
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if (0 != s->client_ip)
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{
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log_message( LOG_LEVEL_INFO, "++ reconnected session: username %s, "
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@ -99,6 +99,11 @@ scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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if (1 == access_login_allowed(s->username))
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{
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tui8 guid[16];
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g_random((char*)guid, 16);
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scp_session_set_guid(s, guid);
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if (0 != s->client_ip)
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{
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log_message(LOG_LEVEL_INFO, "++ created session (access granted): "
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@ -113,27 +118,18 @@ scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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if (SCP_SESSION_TYPE_XVNC == s->type)
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{
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log_message( LOG_LEVEL_INFO, "starting Xvnc session...");
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display = session_start(s->width, s->height, s->bpp, s->username,
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s->password, data, SESMAN_SESSION_TYPE_XVNC,
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s->domain, s->program, s->directory,
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s->client_ip);
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display = session_start(data, SESMAN_SESSION_TYPE_XVNC, s);
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}
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else if (SCP_SESSION_TYPE_XRDP == s->type)
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{
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log_message(LOG_LEVEL_INFO, "starting X11rdp session...");
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display = session_start(s->width, s->height, s->bpp, s->username,
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s->password, data, SESMAN_SESSION_TYPE_XRDP,
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s->domain, s->program, s->directory,
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s->client_ip);
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display = session_start(data, SESMAN_SESSION_TYPE_XRDP, s);
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}
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else if (SCP_SESSION_TYPE_XORG == s->type)
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{
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/* type is SCP_SESSION_TYPE_XORG */
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log_message(LOG_LEVEL_INFO, "starting Xorg session...");
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display = session_start(s->width, s->height, s->bpp, s->username,
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s->password, data, SESMAN_SESSION_TYPE_XORG,
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s->domain, s->program, s->directory,
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s->client_ip);
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display = session_start(data, SESMAN_SESSION_TYPE_XORG, s);
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}
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}
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else
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@ -148,7 +144,7 @@ scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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}
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else
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{
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scp_v0s_allow_connection(c, display);
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scp_v0s_allow_connection(c, display, s->guid);
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}
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}
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else
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@ -122,16 +122,12 @@ scp_v1_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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if (SCP_SESSION_TYPE_XVNC == s->type)
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{
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log_message(LOG_LEVEL_INFO, "starting Xvnc session...");
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display = session_start(s->width, s->height, s->bpp, s->username,
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s->password, data, SESMAN_SESSION_TYPE_XVNC,
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s->domain, s->program, s->directory, s->client_ip);
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display = session_start(data, SESMAN_SESSION_TYPE_XVNC, s);
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}
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else
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{
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log_message(LOG_LEVEL_INFO, "starting X11rdp session...");
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display = session_start(s->width, s->height, s->bpp, s->username,
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s->password, data, SESMAN_SESSION_TYPE_XRDP,
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s->domain, s->program, s->directory, s->client_ip);
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display = session_start(data, SESMAN_SESSION_TYPE_XRDP, s);
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}
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e = scp_v1s_connect_new_session(c, display);
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@ -408,9 +408,7 @@ wait_for_xserver(int display)
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/******************************************************************************/
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/* called with the main thread */
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static int APP_CC
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session_start_fork(int width, int height, int bpp, char *username,
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char *password, tbus data, tui8 type, char *domain,
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char *program, char *directory, char *client_ip)
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session_start_fork(tbus data, tui8 type, struct SCP_SESSION *s)
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{
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int display = 0;
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int pid = 0;
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@ -445,7 +443,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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if (g_session_count >= g_cfg->sess.max_sessions)
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{
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log_message(LOG_LEVEL_INFO, "max concurrent session limit "
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"exceeded. login for user %s denied", username);
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"exceeded. login for user %s denied", s->username);
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return 0;
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}
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@ -454,7 +452,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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if (temp == 0)
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{
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log_message(LOG_LEVEL_ERROR, "cannot create new chain "
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"element - user %s", username);
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"element - user %s", s->username);
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return 0;
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}
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@ -464,7 +462,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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{
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g_free(temp);
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log_message(LOG_LEVEL_ERROR, "cannot create new session "
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"item - user %s", username);
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"item - user %s", s->username);
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return 0;
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}
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@ -487,8 +485,8 @@ session_start_fork(int width, int height, int bpp, char *username,
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{
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g_delete_wait_obj(g_term_event);
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g_tcp_close(g_sck);
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g_sprintf(geometry, "%dx%d", width, height);
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g_sprintf(depth, "%d", bpp);
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g_sprintf(geometry, "%dx%d", s->width, s->height);
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g_sprintf(depth, "%d", s->bpp);
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g_sprintf(screen, ":%d", display);
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#ifdef __FreeBSD__
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/*
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@ -543,7 +541,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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}
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else if (pampid == 0)
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{
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env_set_user(username,
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env_set_user(s->username,
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0,
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display,
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g_cfg->session_variables1,
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@ -551,21 +549,21 @@ session_start_fork(int width, int height, int bpp, char *username,
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if (x_server_running(display))
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{
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auth_set_env(data);
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if (directory != 0)
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if (s->directory != 0)
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{
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if (directory[0] != 0)
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if (s->directory[0] != 0)
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{
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g_set_current_dir(directory);
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g_set_current_dir(s->directory);
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}
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}
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if (program != 0)
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if (s->program != 0)
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{
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if (program[0] != 0)
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if (s->program[0] != 0)
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{
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g_execlp3(program, program, 0);
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g_execlp3(s->program, s->program, 0);
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log_message(LOG_LEVEL_ALWAYS,
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"error starting program %s for user %s - pid %d",
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program, username, g_getpid());
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s->program, s->username, g_getpid());
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}
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}
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/* try to execute user window manager if enabled */
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@ -576,7 +574,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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{
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g_execlp3(text, g_cfg->user_wm, 0);
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log_message(LOG_LEVEL_ALWAYS, "error starting user "
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"wm for user %s - pid %d", username, g_getpid());
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"wm for user %s - pid %d", s->username, g_getpid());
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/* logging parameters */
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log_message(LOG_LEVEL_DEBUG, "errno: %d, "
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"description: %s", g_get_errno(), g_get_strerror());
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@ -594,7 +592,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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g_execlp3(text, g_cfg->default_wm, 0);
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log_message(LOG_LEVEL_ALWAYS, "error starting default "
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"wm for user %s - pid %d", username, g_getpid());
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"wm for user %s - pid %d", s->username, g_getpid());
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/* logging parameters */
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log_message(LOG_LEVEL_DEBUG, "errno: %d, description: "
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"%s", g_get_errno(), g_get_strerror());
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@ -609,7 +607,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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/* should not get here */
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log_message(LOG_LEVEL_ALWAYS, "error starting xterm "
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"for user %s - pid %d", username, g_getpid());
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"for user %s - pid %d", s->username, g_getpid());
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/* logging parameters */
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log_message(LOG_LEVEL_DEBUG, "errno: %d, description: "
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"%s", g_get_errno(), g_get_strerror());
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@ -642,7 +640,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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{
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if (type == SESMAN_SESSION_TYPE_XVNC)
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{
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env_set_user(username,
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env_set_user(s->username,
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&passwd_file,
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display,
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g_cfg->session_variables1,
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@ -650,7 +648,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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}
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else
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{
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env_set_user(username,
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env_set_user(s->username,
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0,
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display,
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g_cfg->session_variables1,
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@ -688,10 +686,10 @@ session_start_fork(int width, int height, int bpp, char *username,
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log_message(LOG_LEVEL_INFO, "%s", dumpItemsToString(xserver_params, execvpparams, 2048));
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/* some args are passed via env vars */
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g_sprintf(geometry, "%d", width);
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g_sprintf(geometry, "%d", s->width);
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g_setenv("XRDP_START_WIDTH", geometry, 1);
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g_sprintf(geometry, "%d", height);
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g_sprintf(geometry, "%d", s->height);
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g_setenv("XRDP_START_HEIGHT", geometry, 1);
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/* fire up Xorg */
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@ -699,7 +697,9 @@ session_start_fork(int width, int height, int bpp, char *username,
|
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}
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else if (type == SESMAN_SESSION_TYPE_XVNC)
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{
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env_check_password_file(passwd_file, password);
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char guid_str[64];
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g_bytes_to_hexstr(s->guid, 16, guid_str, 64);
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env_check_password_file(passwd_file, guid_str);
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xserver_params = list_create();
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xserver_params->auto_free = 1;
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@ -759,13 +759,13 @@ session_start_fork(int width, int height, int bpp, char *username,
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else
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{
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log_message(LOG_LEVEL_ALWAYS, "bad session type - "
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"user %s - pid %d", username, g_getpid());
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"user %s - pid %d", s->username, g_getpid());
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g_exit(1);
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}
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/* should not get here */
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log_message(LOG_LEVEL_ALWAYS, "error starting X server "
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"- user %s - pid %d", username, g_getpid());
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"- user %s - pid %d", s->username, g_getpid());
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/* logging parameters */
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log_message(LOG_LEVEL_DEBUG, "errno: %d, description: "
|
||||
@ -790,7 +790,7 @@ session_start_fork(int width, int height, int bpp, char *username,
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g_snprintf(text, 255, ":%d.0", display);
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g_setenv("DISPLAY", text, 1);
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/* new style waiting for clients */
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session_start_sessvc(xpid, wmpid, data, username, display);
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session_start_sessvc(xpid, wmpid, data, s->username, display);
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}
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}
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}
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@ -798,12 +798,13 @@ session_start_fork(int width, int height, int bpp, char *username,
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{
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temp->item->pid = pid;
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temp->item->display = display;
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temp->item->width = width;
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temp->item->height = height;
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temp->item->bpp = bpp;
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temp->item->width = s->width;
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temp->item->height = s->height;
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temp->item->bpp = s->bpp;
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temp->item->data = data;
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g_strncpy(temp->item->client_ip, client_ip, 255); /* store client ip data */
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g_strncpy(temp->item->name, username, 255);
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g_strncpy(temp->item->client_ip, s->client_ip, 255); /* store client ip data */
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g_strncpy(temp->item->name, s->username, 255);
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g_memcpy(temp->item->guid, s->guid, 16);
|
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|
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ltime = g_time1();
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localtime_r(<ime, &stime);
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@ -867,13 +868,9 @@ session_reconnect_fork(int display, char *username)
|
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/* called by a worker thread, ask the main thread to call session_sync_start
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and wait till done */
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int DEFAULT_CC
|
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session_start(int width, int height, int bpp, char *username, char *password,
|
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long data, tui8 type, char *domain, char *program,
|
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char *directory, char *client_ip)
|
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session_start(long data, tui8 type, struct SCP_SESSION *s)
|
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{
|
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return session_start_fork(width, height, bpp, username,
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password, data, type, domain,
|
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program, directory, client_ip);
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return session_start_fork(data, type, s);
|
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}
|
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|
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/******************************************************************************/
|
||||
|
@ -76,6 +76,7 @@ struct session_item
|
||||
struct session_date disconnect_time;
|
||||
struct session_date idle_time;
|
||||
char client_ip[256];
|
||||
tui8 guid[16];
|
||||
};
|
||||
|
||||
struct session_chain
|
||||
@ -104,9 +105,7 @@ session_get_bydata(const char *name, int width, int height, int bpp, int type,
|
||||
*
|
||||
*/
|
||||
int DEFAULT_CC
|
||||
session_start(int width, int height, int bpp, char* username, char* password,
|
||||
long data, tui8 type, char* domain, char* program,
|
||||
char* directory, char* client_ip);
|
||||
session_start(long data, tui8 type, struct SCP_SESSION *s);
|
||||
|
||||
int DEFAULT_CC
|
||||
session_reconnect(int display, char* username);
|
||||
|
59
vnc/vnc.c
59
vnc/vnc.c
@ -49,15 +49,37 @@ lib_send_copy(struct vnc *v, struct stream *s)
|
||||
|
||||
/******************************************************************************/
|
||||
/* taken from vncauth.c */
|
||||
void DEFAULT_CC
|
||||
rfbEncryptBytes(char *bytes, char *passwd)
|
||||
/* performing the des3 crypt on the password so it can not be seen
|
||||
on the wire
|
||||
'bytes' in, contains 16 bytes server random
|
||||
out, random and 'passwd' conbined */
|
||||
static void APP_CC
|
||||
rfbEncryptBytes(char *bytes, const char *passwd)
|
||||
{
|
||||
char key[24];
|
||||
void *des;
|
||||
int len;
|
||||
|
||||
/* key is simply password padded with nulls */
|
||||
g_memset(key, 0, sizeof(key));
|
||||
len = MIN(g_strlen(passwd), 8);
|
||||
g_mirror_memcpy(key, passwd, len);
|
||||
des = ssl_des3_encrypt_info_create(key, 0);
|
||||
ssl_des3_encrypt(des, 8, bytes, bytes);
|
||||
ssl_des3_info_delete(des);
|
||||
des = ssl_des3_encrypt_info_create(key, 0);
|
||||
ssl_des3_encrypt(des, 8, bytes + 8, bytes + 8);
|
||||
ssl_des3_info_delete(des);
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/* sha1 hash 'passwd', create a string from the hash and call rfbEncryptBytes */
|
||||
static void APP_CC
|
||||
rfbHashEncryptBytes(char *bytes, const char *passwd)
|
||||
{
|
||||
char passwd_hash[20];
|
||||
char passwd_hash_text[40];
|
||||
void *des;
|
||||
void *sha1;
|
||||
int len;
|
||||
int passwd_bytes;
|
||||
|
||||
/* create password hash from password */
|
||||
@ -72,18 +94,7 @@ rfbEncryptBytes(char *bytes, char *passwd)
|
||||
(tui8)passwd_hash[0], (tui8)passwd_hash[1],
|
||||
(tui8)passwd_hash[2], (tui8)passwd_hash[3]);
|
||||
passwd_hash_text[39] = 0;
|
||||
passwd = passwd_hash_text;
|
||||
|
||||
/* key is simply password padded with nulls */
|
||||
g_memset(key, 0, sizeof(key));
|
||||
len = MIN(g_strlen(passwd), 8);
|
||||
g_mirror_memcpy(key, passwd, len);
|
||||
des = ssl_des3_encrypt_info_create(key, 0);
|
||||
ssl_des3_encrypt(des, 8, bytes, bytes);
|
||||
ssl_des3_info_delete(des);
|
||||
des = ssl_des3_encrypt_info_create(key, 0);
|
||||
ssl_des3_encrypt(des, 8, bytes + 8, bytes + 8);
|
||||
ssl_des3_info_delete(des);
|
||||
rfbEncryptBytes(bytes, passwd_hash_text);
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
@ -1083,7 +1094,16 @@ lib_mod_connect(struct vnc *v)
|
||||
if (error == 0)
|
||||
{
|
||||
init_stream(s, 8192);
|
||||
rfbEncryptBytes(s->data, v->password);
|
||||
if (v->got_guid)
|
||||
{
|
||||
char guid_str[64];
|
||||
g_bytes_to_hexstr(v->guid, 16, guid_str, 64);
|
||||
rfbHashEncryptBytes(s->data, guid_str);
|
||||
}
|
||||
else
|
||||
{
|
||||
rfbEncryptBytes(s->data, v->password);
|
||||
}
|
||||
s->p += 16;
|
||||
s_mark_end(s);
|
||||
error = trans_force_write_s(v->trans, s);
|
||||
@ -1422,6 +1442,11 @@ lib_mod_set_param(struct vnc *v, const char *name, char *value)
|
||||
{
|
||||
v->delay_ms = g_atoi(value);
|
||||
}
|
||||
else if (g_strcasecmp(name, "guid") == 0)
|
||||
{
|
||||
v->got_guid = 1;
|
||||
g_memcpy(v->guid, value, 16);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -114,4 +114,6 @@ struct vnc
|
||||
struct stream *clip_data_s;
|
||||
int delay_ms;
|
||||
struct trans *trans;
|
||||
int got_guid;
|
||||
tui8 guid[16];
|
||||
};
|
||||
|
@ -483,7 +483,7 @@ xrdp_mm_setup_mod1(struct xrdp_mm *self)
|
||||
|
||||
/*****************************************************************************/
|
||||
static int APP_CC
|
||||
xrdp_mm_setup_mod2(struct xrdp_mm *self)
|
||||
xrdp_mm_setup_mod2(struct xrdp_mm *self, tui8 *guid)
|
||||
{
|
||||
char text[256];
|
||||
char *name;
|
||||
@ -563,6 +563,10 @@ xrdp_mm_setup_mod2(struct xrdp_mm *self)
|
||||
self->mod->mod_set_param(self->mod, "hostname", name);
|
||||
g_snprintf(text, 255, "%d", self->wm->session->client_info->keylayout);
|
||||
self->mod->mod_set_param(self->mod, "keylayout", text);
|
||||
if (guid != 0)
|
||||
{
|
||||
self->mod->mod_set_param(self->mod, "guid", (char *) guid);
|
||||
}
|
||||
|
||||
for (i = 0; i < self->login_names->count; i++)
|
||||
{
|
||||
@ -1195,11 +1199,18 @@ xrdp_mm_process_login_response(struct xrdp_mm *self, struct stream *s)
|
||||
int rv;
|
||||
char ip[256];
|
||||
char port[256];
|
||||
tui8 guid[16];
|
||||
tui8* pguid;
|
||||
|
||||
rv = 0;
|
||||
in_uint16_be(s, ok);
|
||||
in_uint16_be(s, display);
|
||||
|
||||
pguid = 0;
|
||||
if (s_check_rem(s, 16))
|
||||
{
|
||||
in_uint8a(s, guid, 16);
|
||||
pguid = guid;
|
||||
}
|
||||
if (ok)
|
||||
{
|
||||
self->display = display;
|
||||
@ -1208,7 +1219,7 @@ xrdp_mm_process_login_response(struct xrdp_mm *self, struct stream *s)
|
||||
|
||||
if (xrdp_mm_setup_mod1(self) == 0)
|
||||
{
|
||||
if (xrdp_mm_setup_mod2(self) == 0)
|
||||
if (xrdp_mm_setup_mod2(self, pguid) == 0)
|
||||
{
|
||||
xrdp_mm_get_value(self, "ip", ip, 255);
|
||||
xrdp_wm_set_login_mode(self->wm, 10);
|
||||
@ -1969,7 +1980,7 @@ xrdp_mm_connect(struct xrdp_mm *self)
|
||||
{
|
||||
if (xrdp_mm_setup_mod1(self) == 0)
|
||||
{
|
||||
if (xrdp_mm_setup_mod2(self) == 0)
|
||||
if (xrdp_mm_setup_mod2(self, 0) == 0)
|
||||
{
|
||||
xrdp_wm_set_login_mode(self->wm, 10);
|
||||
rv = 0; /*success*/
|
||||
|
Loading…
Reference in New Issue
Block a user