source3/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 = 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 (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         char           *utf8_fname;
 111
 112         printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 113         printf("<td>");
 114         switch ((e->share_mode>>4)&0xF) {
 115         case DENY_NONE: printf("DENY_NONE"); break;
 116         case DENY_ALL:  printf("DENY_ALL   "); break;
 117         case DENY_DOS:  printf("DENY_DOS   "); break;
 118         case DENY_READ: printf("DENY_READ  "); break;
 119         case DENY_WRITE:printf("DENY_WRITE "); break;
 120         }
 121         printf("</td>");
 122
 123         printf("<td>");
 124         switch (e->share_mode&0xF) {
 125         case 0: printf("%s", _("RDONLY     ")); break;
 126         case 1: printf("%s", _("WRONLY     ")); break;
 127         case 2: printf("%s", _("RDWR       ")); break;
 128         }
 129         printf("</td>");
 130
 131         printf("<td>");
 132         if((e->op_type &
 133             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 134            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 135                 printf("EXCLUSIVE+BATCH ");
 136         else if (e->op_type & EXCLUSIVE_OPLOCK)
 137                 printf("EXCLUSIVE       ");
 138         else if (e->op_type & BATCH_OPLOCK)
 139                 printf("BATCH           ");
 140         else if (e->op_type & LEVEL_II_OPLOCK)
 141                 printf("LEVEL_II        ");
 142         else
 143                 printf("NONE            ");
 144         printf("</td>");
 145
 146         push_utf8_allocate(&utf8_fname, fname);
 147         printf("<td>%s</td><td>%s</td></tr>\n",
 148                utf8_fname,tstring(e->time.tv_sec));
 149         SAFE_FREE(utf8_fname);
 150 }
 151
 152
 153 /* kill off any connections chosen by the user */
 154 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 155 {
 156         struct connections_data crec;
 157
 158         if (dbuf.dsize != sizeof(crec))
 159                 return 0;
 160
 161         memcpy(&crec, dbuf.dptr, sizeof(crec));
 162
 163         if (crec.cnum == -1 && process_exists(crec.pid)) {
 164                 char buf[30];
 165                 slprintf(buf,sizeof(buf)-1,"kill_%d", (int)crec.pid);
 166                 if (cgi_variable(buf)) {
 167                         kill_pid(crec.pid);
 168                         sleep(SLEEP_TIME);
 169                 }
 170         }
 171         return 0;
 172 }
 173
 174 /* traversal fn for showing machine connections */
 175 static int traverse_fn2(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 176 {
 177         struct connections_data crec;
 178
 179         if (dbuf.dsize != sizeof(crec))
 180                 return 0;
 181
 182         memcpy(&crec, dbuf.dptr, sizeof(crec));
 183
 184         if (crec.cnum == -1 || !process_exists(crec.pid) || (crec.pid == smbd_pid))
 185                 return 0;
 186
 187         addPid2Machine (crec.pid, crec.machine);
 188
 189         printf("<tr><td>%d</td><td>%s</td><td>%s</td><td>%s</td>\n",
 190                (int)crec.pid,
 191                crec.machine,crec.addr,
 192                tstring(crec.start));
 193         if (geteuid() == 0) {
 194                 printf("<td><input type=submit value=\"X\" name=\"kill_%d\"></td>\n",
 195                        (int)crec.pid);
 196         }
 197         printf("</tr>\n");
 198
 199         return 0;
 200 }
 201
 202 /* traversal fn for showing share connections */
 203 static int traverse_fn3(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 204 {
 205         struct connections_data crec;
 206
 207         if (dbuf.dsize != sizeof(crec))
 208                 return 0;
 209
 210         memcpy(&crec, dbuf.dptr, sizeof(crec));
 211
 212         if (crec.cnum == -1 || !process_exists(crec.pid))
 213                 return 0;
 214
 215         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td></tr>\n",
 216                crec.name,uidtoname(crec.uid),
 217                gidtoname(crec.gid),(int)crec.pid,
 218                crec.machine,
 219                tstring(crec.start));
 220         return 0;
 221 }
 222
 223
 224 /* show the current server status */
 225 void status_page(void)
 226 {
 227         const char *v;
 228         int autorefresh=0;
 229         int refresh_interval=30;
 230         TDB_CONTEXT *tdb;
 231         int nr_running=0;
 232         BOOL waitup = False;
 233
 234         smbd_pid = pidfile_pid("smbd");
 235
 236         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 237                 stop_smbd();
 238                 start_smbd();
 239                 waitup=True;
 240         }
 241
 242         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 243                 start_smbd();
 244                 waitup=True;
 245         }
 246
 247         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 248                 stop_smbd();
 249                 waitup=True;
 250         }
 251
 252         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 253                 stop_nmbd();
 254                 start_nmbd();
 255                 waitup=True;
 256         }
 257         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 258                 start_nmbd();
 259                 waitup=True;
 260         }
 261
 262         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 263                 stop_nmbd();
 264                 waitup=True;
 265         }
 266
 267 #ifdef WITH_WINBIND
 268         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 269                 stop_winbindd();
 270                 start_winbindd();
 271                 waitup=True;
 272         }
 273
 274         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 275                 start_winbindd();
 276                 waitup=True;
 277         }
 278
 279         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 280                 stop_winbindd();
 281                 waitup=True;
 282         }
 283 #endif
 284         /* wait for daemons to start/stop */
 285         if (waitup)
 286                 sleep(SLEEP_TIME);
 287
 288         if (cgi_variable("autorefresh")) {
 289                 autorefresh = 1;
 290         } else if (cgi_variable("norefresh")) {
 291                 autorefresh = 0;
 292         } else if (cgi_variable("refresh")) {
 293                 autorefresh = 1;
 294         }
 295
 296         if ((v=cgi_variable("refresh_interval"))) {
 297                 refresh_interval = atoi(v);
 298         }
 299
 300         if (cgi_variable("show_client_in_col_1")) {
 301                 PID_or_Machine = 1;
 302         }
 303
 304         if (cgi_variable("show_pid_in_col_1")) {
 305                 PID_or_Machine = 0;
 306         }
 307
 308         tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 309         if (tdb) tdb_traverse(tdb, traverse_fn1, NULL);
 310
 311         initPid2Machine ();
 312
 313         printf("<H2>%s</H2>\n", _("Server Status"));
 314
 315         printf("<FORM method=post>\n");
 316
 317         if (!autorefresh) {
 318                 printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 319                 printf("<br>%s", _("Refresh Interval: "));
 320                 printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 321                        refresh_interval);
 322         } else {
 323                 printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 324                 printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 325                 printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 326         }
 327
 328         printf("<p>\n");
 329
 330         if (!tdb) {
 331                 /* open failure either means no connections have been
 332                    made */
 333         }
 334
 335
 336         printf("<table>\n");
 337
 338         printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), SAMBA_VERSION_STRING);
 339
 340         fflush(stdout);
 341         printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 342         if (geteuid() == 0) {
 343             if (smbd_running()) {
 344                 nr_running++;
 345                 printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 346             } else {
 347                 printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 348             }
 349             printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 350         }
 351         printf("</tr>\n");
 352
 353         fflush(stdout);
 354         printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 355         if (geteuid() == 0) {
 356             if (nmbd_running()) {
 357                 nr_running++;
 358                 printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 359             } else {
 360                 printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 361             }
 362             printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 363         }
 364         printf("</tr>\n");
 365
 366 #ifdef WITH_WINBIND
 367         fflush(stdout);
 368         printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 369         if (geteuid() == 0) {
 370             if (winbindd_running()) {
 371                 nr_running++;
 372                 printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 373             } else {
 374                 printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 375             }
 376             printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 377         }
 378         printf("</tr>\n");
 379 #endif
 380
 381         if (geteuid() == 0) {
 382             printf("<tr><td></td><td></td>\n");
 383             if (nr_running >= 1) {
 384                 /* stop, restart all */
 385                 printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 386                 printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 387             }
 388             else if (nr_running == 0) {
 389                 /* start all */
 390                 printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 391             }
 392             printf("</tr>\n");
 393         }
 394         printf("</table>\n");
 395         fflush(stdout);
 396
 397         printf("<p><h3>%s</h3>\n", _("Active Connections"));
 398         printf("<table border=1>\n");
 399         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 400         if (geteuid() == 0) {
 401                 printf("<th>%s</th>\n", _("Kill"));
 402         }
 403         printf("</tr>\n");
 404
 405         if (tdb) tdb_traverse(tdb, traverse_fn2, NULL);
 406
 407         printf("</table><p>\n");
 408
 409         printf("<p><h3>%s</h3>\n", _("Active Shares"));
 410         printf("<table border=1>\n");
 411         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 412                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 413
 414         if (tdb) tdb_traverse(tdb, traverse_fn3, NULL);
 415
 416         printf("</table><p>\n");
 417
 418         printf("<h3>%s</h3>\n", _("Open Files"));
 419         printf("<table border=1>\n");
 420         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"));
 421
 422         locking_init(1);
 423         share_mode_forall(print_share_mode);
 424         locking_end();
 425         printf("</table>\n");
 426
 427         if (tdb) tdb_close(tdb);
 428
 429         printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 430         printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 431
 432         printf("</FORM>\n");
 433
 434         if (autorefresh) {
 435                 /* this little JavaScript allows for automatic refresh
 436                    of the page. There are other methods but this seems
 437                    to be the best alternative */
 438                 printf("<script language=\"JavaScript\">\n");
 439                 printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 440                        cgi_baseurl(),
 441                        refresh_interval,
 442                        refresh_interval*1000);
 443                 printf("//-->\n</script>\n");
 444         }
 445 }