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         pid_t   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 pid_t 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 (pid_t 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 = (PIDMAP *) malloc (sizeof (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 = strdup (machine);
  72
  73                 DLIST_ADD(pidmap, newmap);
  74         }
  75 }
  76
  77 /* lookup PID <-> Machine name mapping */
  78 static char *mapPid2Machine (pid_t 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 (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, "%lu", (unsigned long)pid);
  97         return pidbuf;
  98 }
  99
 100 static char *tstring(time_t t)
 101 {
 102         static pstring buf;
 103         pstrcpy(buf, asctime(LocalTime(&t)));
 104         all_string_sub(buf," ","&nbsp;",sizeof(buf));
 105         return buf;
 106 }
 107
 108 static void print_share_mode(share_mode_entry *e, char *fname)
 109 {
 110         d_printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 111         d_printf("<td>");
 112         switch ((e->share_mode>>4)&0xF) {
 113         case DENY_NONE: d_printf("DENY_NONE"); break;
 114         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 115         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 116         case DENY_READ: d_printf("DENY_READ  "); break;
 117         case DENY_WRITE:d_printf("DENY_WRITE "); break;
 118         }
 119         d_printf("</td>");
 120
 121         d_printf("<td>");
 122         switch (e->share_mode&0xF) {
 123         case 0: d_printf("%s", _("RDONLY     ")); break;
 124         case 1: d_printf("%s", _("WRONLY     ")); break;
 125         case 2: d_printf("%s", _("RDWR       ")); break;
 126         }
 127         d_printf("</td>");
 128
 129         d_printf("<td>");
 130         if((e->op_type &
 131             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 132            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 133                 d_printf("EXCLUSIVE+BATCH ");
 134         else if (e->op_type & EXCLUSIVE_OPLOCK)
 135                 d_printf("EXCLUSIVE       ");
 136         else if (e->op_type & BATCH_OPLOCK)
 137                 d_printf("BATCH           ");
 138         else if (e->op_type & LEVEL_II_OPLOCK)
 139                 d_printf("LEVEL_II        ");
 140         else
 141                 d_printf("NONE            ");
 142         d_printf("</td>");
 143
 144         d_printf("<td>%s</td><td>%s</td></tr>\n",
 145                fname,tstring(e->time.tv_sec));
 146 }
 147
 148
 149 /* kill off any connections chosen by the user */
 150 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 151 {
 152         struct connections_data crec;
 153
 154         if (dbuf.dsize != sizeof(crec))
 155                 return 0;
 156
 157         memcpy(&crec, dbuf.dptr, sizeof(crec));
 158
 159         if (crec.cnum == -1 && process_exists(crec.pid)) {
 160                 char buf[30];
 161                 slprintf(buf,sizeof(buf)-1,"kill_%d", (int)crec.pid);
 162                 if (cgi_variable(buf)) {
 163                         kill_pid(crec.pid);
 164                         sleep(SLEEP_TIME);
 165                 }
 166         }
 167         return 0;
 168 }
 169
 170 /* traversal fn for showing machine connections */
 171 static int traverse_fn2(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 172 {
 173         struct connections_data crec;
 174
 175         if (dbuf.dsize != sizeof(crec))
 176                 return 0;
 177
 178         memcpy(&crec, dbuf.dptr, sizeof(crec));
 179
 180         if (crec.cnum != -1 || !process_exists(crec.pid) || (crec.pid == smbd_pid))
 181                 return 0;
 182
 183         addPid2Machine (crec.pid, crec.machine);
 184
 185         d_printf("<tr><td>%d</td><td>%s</td><td>%s</td><td>%s</td>\n",
 186                (int)crec.pid,
 187                crec.machine,crec.addr,
 188                tstring(crec.start));
 189         if (geteuid() == 0) {
 190                 d_printf("<td><input type=submit value=\"X\" name=\"kill_%d\"></td>\n",
 191                        (int)crec.pid);
 192         }
 193         d_printf("</tr>\n");
 194
 195         return 0;
 196 }
 197
 198 /* traversal fn for showing share connections */
 199 static int traverse_fn3(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 200 {
 201         struct connections_data crec;
 202
 203         if (dbuf.dsize != sizeof(crec))
 204                 return 0;
 205
 206         memcpy(&crec, dbuf.dptr, sizeof(crec));
 207
 208         if (crec.cnum == -1 || !process_exists(crec.pid))
 209                 return 0;
 210
 211         d_printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td></tr>\n",
 212                crec.name,uidtoname(crec.uid),
 213                gidtoname(crec.gid),(int)crec.pid,
 214                crec.machine,
 215                tstring(crec.start));
 216         return 0;
 217 }
 218
 219
 220 /* show the current server status */
 221 void status_page(void)
 222 {
 223         const char *v;
 224         int autorefresh=0;
 225         int refresh_interval=30;
 226         TDB_CONTEXT *tdb;
 227         int nr_running=0;
 228         BOOL waitup = False;
 229
 230         smbd_pid = pidfile_pid("smbd");
 231
 232         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 233                 stop_smbd();
 234                 start_smbd();
 235                 waitup=True;
 236         }
 237
 238         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 239                 start_smbd();
 240                 waitup=True;
 241         }
 242
 243         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 244                 stop_smbd();
 245                 waitup=True;
 246         }
 247
 248         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 249                 stop_nmbd();
 250                 start_nmbd();
 251                 waitup=True;
 252         }
 253         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 254                 start_nmbd();
 255                 waitup=True;
 256         }
 257
 258         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 259                 stop_nmbd();
 260                 waitup=True;
 261         }
 262
 263 #ifdef WITH_WINBIND
 264         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 265                 stop_winbindd();
 266                 start_winbindd();
 267                 waitup=True;
 268         }
 269
 270         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 271                 start_winbindd();
 272                 waitup=True;
 273         }
 274
 275         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 276                 stop_winbindd();
 277                 waitup=True;
 278         }
 279 #endif
 280         /* wait for daemons to start/stop */
 281         if (waitup)
 282                 sleep(SLEEP_TIME);
 283
 284         if (cgi_variable("autorefresh")) {
 285                 autorefresh = 1;
 286         } else if (cgi_variable("norefresh")) {
 287                 autorefresh = 0;
 288         } else if (cgi_variable("refresh")) {
 289                 autorefresh = 1;
 290         }
 291
 292         if ((v=cgi_variable("refresh_interval"))) {
 293                 refresh_interval = atoi(v);
 294         }
 295
 296         if (cgi_variable("show_client_in_col_1")) {
 297                 PID_or_Machine = 1;
 298         }
 299
 300         if (cgi_variable("show_pid_in_col_1")) {
 301                 PID_or_Machine = 0;
 302         }
 303
 304         tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 305         if (tdb) tdb_traverse(tdb, traverse_fn1, NULL);
 306
 307         initPid2Machine ();
 308
 309         d_printf("<H2>%s</H2>\n", _("Server Status"));
 310
 311         d_printf("<FORM method=post>\n");
 312
 313         if (!autorefresh) {
 314                 d_printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 315                 d_printf("<br>%s", _("Refresh Interval: "));
 316                 d_printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 317                        refresh_interval);
 318         } else {
 319                 d_printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 320                 d_printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 321                 d_printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 322         }
 323
 324         d_printf("<p>\n");
 325
 326         if (!tdb) {
 327                 /* open failure either means no connections have been
 328                    made */
 329         }
 330
 331
 332         d_printf("<table>\n");
 333
 334         d_printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), SAMBA_VERSION_STRING);
 335
 336         fflush(stdout);
 337         d_printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 338         if (geteuid() == 0) {
 339             if (smbd_running()) {
 340                 nr_running++;
 341                 d_printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 342             } else {
 343                 d_printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 344             }
 345             d_printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 346         }
 347         d_printf("</tr>\n");
 348
 349         fflush(stdout);
 350         d_printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 351         if (geteuid() == 0) {
 352             if (nmbd_running()) {
 353                 nr_running++;
 354                 d_printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 355             } else {
 356                 d_printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 357             }
 358             d_printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 359         }
 360         d_printf("</tr>\n");
 361
 362 #ifdef WITH_WINBIND
 363         fflush(stdout);
 364         d_printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 365         if (geteuid() == 0) {
 366             if (winbindd_running()) {
 367                 nr_running++;
 368                 d_printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 369             } else {
 370                 d_printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 371             }
 372             d_printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 373         }
 374         d_printf("</tr>\n");
 375 #endif
 376
 377         if (geteuid() == 0) {
 378             d_printf("<tr><td></td><td></td>\n");
 379             if (nr_running >= 1) {
 380                 /* stop, restart all */
 381                 d_printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 382                 d_printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 383             }
 384             else if (nr_running == 0) {
 385                 /* start all */
 386                 d_printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 387             }
 388             d_printf("</tr>\n");
 389         }
 390         d_printf("</table>\n");
 391         fflush(stdout);
 392
 393         d_printf("<p><h3>%s</h3>\n", _("Active Connections"));
 394         d_printf("<table border=1>\n");
 395         d_printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 396         if (geteuid() == 0) {
 397                 d_printf("<th>%s</th>\n", _("Kill"));
 398         }
 399         d_printf("</tr>\n");
 400
 401         if (tdb) tdb_traverse(tdb, traverse_fn2, NULL);
 402
 403         d_printf("</table><p>\n");
 404
 405         d_printf("<p><h3>%s</h3>\n", _("Active Shares"));
 406         d_printf("<table border=1>\n");
 407         d_printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 408                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 409
 410         if (tdb) tdb_traverse(tdb, traverse_fn3, NULL);
 411
 412         d_printf("</table><p>\n");
 413
 414         d_printf("<h3>%s</h3>\n", _("Open Files"));
 415         d_printf("<table border=1>\n");
 416         d_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"));
 417
 418         locking_init(1);
 419         share_mode_forall(print_share_mode);
 420         locking_end();
 421         d_printf("</table>\n");
 422
 423         if (tdb) tdb_close(tdb);
 424
 425         d_printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 426         d_printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 427
 428         d_printf("</FORM>\n");
 429
 430         if (autorefresh) {
 431                 /* this little JavaScript allows for automatic refresh
 432                    of the page. There are other methods but this seems
 433                    to be the best alternative */
 434                 d_printf("<script language=\"JavaScript\">\n");
 435                 d_printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 436                        cgi_baseurl(),
 437                        refresh_interval,
 438                        refresh_interval*1000);
 439                 d_printf("//-->\n</script>\n");
 440         }
 441 }