source/web/statuspage.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    web status page
   4    Copyright (C) Andrew Tridgell 1997-1998
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "web/swat_proto.h"
  23
  24 #define PIDMAP          struct PidMap
  25
  26 /* how long to wait for start/stops to take effect */
  27 #define SLEEP_TIME 3
  28
  29 PIDMAP {
  30         PIDMAP  *next, *prev;
  31         struct process_id pid;
  32         char    *machine;
  33 };
  34
  35 static PIDMAP   *pidmap;
  36 static int      PID_or_Machine;         /* 0 = show PID, else show Machine name */
  37
  38 static struct process_id smbd_pid;
  39
  40 /* from 2nd call on, remove old list */
  41 static void initPid2Machine (void)
  42 {
  43         /* show machine name rather PID on table "Open Files"? */
  44         if (PID_or_Machine) {
  45                 PIDMAP *p;
  46
  47                 for (p = pidmap; p != NULL; ) {
  48                         DLIST_REMOVE(pidmap, p);
  49                         SAFE_FREE(p->machine);
  50                         SAFE_FREE(p);
  51                 }
  52
  53                 pidmap = NULL;
  54         }
  55 }
  56
  57 /* add new PID <-> Machine name mapping */
  58 static void addPid2Machine (struct process_id pid, char *machine)
  59 {
  60         /* show machine name rather PID on table "Open Files"? */
  61         if (PID_or_Machine) {
  62                 PIDMAP *newmap;
  63
  64                 if ((newmap = SMB_MALLOC_P(PIDMAP)) == NULL) {
  65                         /* XXX need error message for this?
  66                            if malloc fails, PID is always shown */
  67                         return;
  68                 }
  69
  70                 newmap->pid = pid;
  71                 newmap->machine = SMB_STRDUP(machine);
  72
  73                 DLIST_ADD(pidmap, newmap);
  74         }
  75 }
  76
  77 /* lookup PID <-> Machine name mapping */
  78 static char *mapPid2Machine (struct process_id pid)
  79 {
  80         static char pidbuf [64];
  81         PIDMAP *map;
  82
  83         /* show machine name rather PID on table "Open Files"? */
  84         if (PID_or_Machine) {
  85                 for (map = pidmap; map != NULL; map = map->next) {
  86                         if (procid_equal(&pid, &map->pid)) {
  87                                 if (map->machine == NULL)       /* no machine name */
  88                                         break;                  /* show PID */
  89
  90                                 return map->machine;
  91                         }
  92                 }
  93         }
  94
  95         /* PID not in list or machine name NULL? return pid as string */
  96         snprintf (pidbuf, sizeof (pidbuf) - 1, "%s",
  97                   procid_str_static(&pid));
  98         return pidbuf;
  99 }
 100
 101 static char *tstring(time_t t)
 102 {
 103         static pstring buf;
 104         pstrcpy(buf, time_to_asc(t));
 105         all_string_sub(buf," ","&nbsp;",sizeof(buf));
 106         return buf;
 107 }
 108
 109 static void print_share_mode(const struct share_mode_entry *e,
 110                              const char *sharepath,
 111                              const char *fname,
 112                              void *dummy)
 113 {
 114         char           *utf8_fname;
 115         int deny_mode;
 116
 117         if (!is_valid_share_mode_entry(e)) {
 118                 return;
 119         }
 120
 121         deny_mode = map_share_mode_to_deny_mode(e->share_access,
 122                                                     e->private_options);
 123
 124         printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 125         printf("<td>%u</td>",(unsigned int)e->uid);
 126         printf("<td>");
 127         switch ((deny_mode>>4)&0xF) {
 128         case DENY_NONE: printf("DENY_NONE"); break;
 129         case DENY_ALL:  printf("DENY_ALL   "); break;
 130         case DENY_DOS:  printf("DENY_DOS   "); break;
 131         case DENY_FCB:  printf("DENY_FCB   "); break;
 132         case DENY_READ: printf("DENY_READ  "); break;
 133         case DENY_WRITE:printf("DENY_WRITE "); break;
 134         }
 135         printf("</td>");
 136
 137         printf("<td>");
 138         if (e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA)) {
 139                 printf("%s", _("RDWR       "));
 140         } else if (e->access_mask & FILE_WRITE_DATA) {
 141                 printf("%s", _("WRONLY     "));
 142         } else {
 143                 printf("%s", _("RDONLY     "));
 144         }
 145         printf("</td>");
 146
 147         printf("<td>");
 148         if((e->op_type &
 149             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 150            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 151                 printf("EXCLUSIVE+BATCH ");
 152         else if (e->op_type & EXCLUSIVE_OPLOCK)
 153                 printf("EXCLUSIVE       ");
 154         else if (e->op_type & BATCH_OPLOCK)
 155                 printf("BATCH           ");
 156         else if (e->op_type & LEVEL_II_OPLOCK)
 157                 printf("LEVEL_II        ");
 158         else
 159                 printf("NONE            ");
 160         printf("</td>");
 161
 162         push_utf8_allocate(&utf8_fname, fname);
 163         printf("<td>%s</td><td>%s</td></tr>\n",
 164                utf8_fname,tstring(e->time.tv_sec));
 165         SAFE_FREE(utf8_fname);
 166 }
 167
 168
 169 /* kill off any connections chosen by the user */
 170 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 171 {
 172         struct connections_data crec;
 173
 174         if (dbuf.dsize != sizeof(crec))
 175                 return 0;
 176
 177         memcpy(&crec, dbuf.dptr, sizeof(crec));
 178
 179         if (crec.cnum == -1 && process_exists(crec.pid)) {
 180                 char buf[30];
 181                 slprintf(buf,sizeof(buf)-1,"kill_%s", procid_str_static(&crec.pid));
 182                 if (cgi_variable(buf)) {
 183                         kill_pid(crec.pid);
 184                         sleep(SLEEP_TIME);
 185                 }
 186         }
 187         return 0;
 188 }
 189
 190 /* traversal fn for showing machine connections */
 191 static int traverse_fn2(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 192 {
 193         struct connections_data crec;
 194
 195         if (dbuf.dsize != sizeof(crec))
 196                 return 0;
 197
 198         memcpy(&crec, dbuf.dptr, sizeof(crec));
 199
 200         if (crec.cnum == -1 || !process_exists(crec.pid) ||
 201             procid_equal(&crec.pid, &smbd_pid))
 202                 return 0;
 203
 204         addPid2Machine (crec.pid, crec.machine);
 205
 206         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td>\n",
 207                procid_str_static(&crec.pid),
 208                crec.machine,crec.addr,
 209                tstring(crec.start));
 210         if (geteuid() == 0) {
 211                 printf("<td><input type=submit value=\"X\" name=\"kill_%s\"></td>\n",
 212                        procid_str_static(&crec.pid));
 213         }
 214         printf("</tr>\n");
 215
 216         return 0;
 217 }
 218
 219 /* traversal fn for showing share connections */
 220 static int traverse_fn3(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 221 {
 222         struct connections_data crec;
 223
 224         if (dbuf.dsize != sizeof(crec))
 225                 return 0;
 226
 227         memcpy(&crec, dbuf.dptr, sizeof(crec));
 228
 229         if (crec.cnum == -1 || !process_exists(crec.pid))
 230                 return 0;
 231
 232         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>\n",
 233                crec.servicename,uidtoname(crec.uid),
 234                gidtoname(crec.gid),procid_str_static(&crec.pid),
 235                crec.machine,
 236                tstring(crec.start));
 237         return 0;
 238 }
 239
 240
 241 /* show the current server status */
 242 void status_page(void)
 243 {
 244         const char *v;
 245         int autorefresh=0;
 246         int refresh_interval=30;
 247         TDB_CONTEXT *tdb;
 248         int nr_running=0;
 249         BOOL waitup = False;
 250
 251         smbd_pid = pid_to_procid(pidfile_pid("smbd"));
 252
 253         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 254                 stop_smbd();
 255                 start_smbd();
 256                 waitup=True;
 257         }
 258
 259         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 260                 start_smbd();
 261                 waitup=True;
 262         }
 263
 264         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 265                 stop_smbd();
 266                 waitup=True;
 267         }
 268
 269         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 270                 stop_nmbd();
 271                 start_nmbd();
 272                 waitup=True;
 273         }
 274         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 275                 start_nmbd();
 276                 waitup=True;
 277         }
 278
 279         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 280                 stop_nmbd();
 281                 waitup=True;
 282         }
 283
 284 #ifdef WITH_WINBIND
 285         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 286                 stop_winbindd();
 287                 start_winbindd();
 288                 waitup=True;
 289         }
 290
 291         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 292                 start_winbindd();
 293                 waitup=True;
 294         }
 295
 296         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 297                 stop_winbindd();
 298                 waitup=True;
 299         }
 300 #endif
 301         /* wait for daemons to start/stop */
 302         if (waitup)
 303                 sleep(SLEEP_TIME);
 304
 305         if (cgi_variable("autorefresh")) {
 306                 autorefresh = 1;
 307         } else if (cgi_variable("norefresh")) {
 308                 autorefresh = 0;
 309         } else if (cgi_variable("refresh")) {
 310                 autorefresh = 1;
 311         }
 312
 313         if ((v=cgi_variable("refresh_interval"))) {
 314                 refresh_interval = atoi(v);
 315         }
 316
 317         if (cgi_variable("show_client_in_col_1")) {
 318                 PID_or_Machine = 1;
 319         }
 320
 321         if (cgi_variable("show_pid_in_col_1")) {
 322                 PID_or_Machine = 0;
 323         }
 324
 325         tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 326         if (tdb) tdb_traverse(tdb, traverse_fn1, NULL);
 327
 328         initPid2Machine ();
 329
 330         printf("<H2>%s</H2>\n", _("Server Status"));
 331
 332         printf("<FORM method=post>\n");
 333
 334         if (!autorefresh) {
 335                 printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 336                 printf("<br>%s", _("Refresh Interval: "));
 337                 printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 338                        refresh_interval);
 339         } else {
 340                 printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 341                 printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 342                 printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 343         }
 344
 345         printf("<p>\n");
 346
 347         if (!tdb) {
 348                 /* open failure either means no connections have been
 349                    made */
 350         }
 351
 352
 353         printf("<table>\n");
 354
 355         printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), SAMBA_VERSION_STRING);
 356
 357         fflush(stdout);
 358         printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 359         if (geteuid() == 0) {
 360             if (smbd_running()) {
 361                 nr_running++;
 362                 printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 363             } else {
 364                 printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 365             }
 366             printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 367         }
 368         printf("</tr>\n");
 369
 370         fflush(stdout);
 371         printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 372         if (geteuid() == 0) {
 373             if (nmbd_running()) {
 374                 nr_running++;
 375                 printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 376             } else {
 377                 printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 378             }
 379             printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 380         }
 381         printf("</tr>\n");
 382
 383 #ifdef WITH_WINBIND
 384         fflush(stdout);
 385         printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 386         if (geteuid() == 0) {
 387             if (winbindd_running()) {
 388                 nr_running++;
 389                 printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 390             } else {
 391                 printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 392             }
 393             printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 394         }
 395         printf("</tr>\n");
 396 #endif
 397
 398         if (geteuid() == 0) {
 399             printf("<tr><td></td><td></td>\n");
 400             if (nr_running >= 1) {
 401                 /* stop, restart all */
 402                 printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 403                 printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 404             }
 405             else if (nr_running == 0) {
 406                 /* start all */
 407                 printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 408             }
 409             printf("</tr>\n");
 410         }
 411         printf("</table>\n");
 412         fflush(stdout);
 413
 414         printf("<p><h3>%s</h3>\n", _("Active Connections"));
 415         printf("<table border=1>\n");
 416         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 417         if (geteuid() == 0) {
 418                 printf("<th>%s</th>\n", _("Kill"));
 419         }
 420         printf("</tr>\n");
 421
 422         if (tdb) tdb_traverse(tdb, traverse_fn2, NULL);
 423
 424         printf("</table><p>\n");
 425
 426         printf("<p><h3>%s</h3>\n", _("Active Shares"));
 427         printf("<table border=1>\n");
 428         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 429                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 430
 431         if (tdb) tdb_traverse(tdb, traverse_fn3, NULL);
 432
 433         printf("</table><p>\n");
 434
 435         printf("<h3>%s</h3>\n", _("Open Files"));
 436         printf("<table border=1>\n");
 437         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n", _("PID"), _("Sharing"), _("R/W"), _("Oplock"), _("File"), _("Date"));
 438
 439         locking_init(1);
 440         share_mode_forall(print_share_mode, NULL);
 441         locking_end();
 442         printf("</table>\n");
 443
 444         if (tdb) tdb_close(tdb);
 445
 446         printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 447         printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 448
 449         printf("</FORM>\n");
 450
 451         if (autorefresh) {
 452                 /* this little JavaScript allows for automatic refresh
 453                    of the page. There are other methods but this seems
 454                    to be the best alternative */
 455                 printf("<script language=\"JavaScript\">\n");
 456                 printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 457                        cgi_baseurl(),
 458                        refresh_interval,
 459                        refresh_interval*1000);
 460                 printf("//-->\n</script>\n");
 461         }
 462 }