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         int deny_mode = map_share_mode_to_deny_mode(e->share_access,
 112                                                     e->private_options);
 113
 114         printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 115         printf("<td>");
 116         switch ((deny_mode>>4)&0xF) {
 117         case DENY_NONE: printf("DENY_NONE"); break;
 118         case DENY_ALL:  printf("DENY_ALL   "); break;
 119         case DENY_DOS:  printf("DENY_DOS   "); break;
 120         case DENY_FCB:  printf("DENY_FCB   "); break;
 121         case DENY_READ: printf("DENY_READ  "); break;
 122         case DENY_WRITE:printf("DENY_WRITE "); break;
 123         }
 124         printf("</td>");
 125
 126         printf("<td>");
 127         if (e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA)) {
 128                 printf("%s", _("RDWR       "));
 129         } else if (e->access_mask & FILE_WRITE_DATA) {
 130                 printf("%s", _("WRONLY     "));
 131         } else {
 132                 printf("%s", _("RDONLY     "));
 133         }
 134         printf("</td>");
 135
 136         printf("<td>");
 137         if((e->op_type &
 138             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 139            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 140                 printf("EXCLUSIVE+BATCH ");
 141         else if (e->op_type & EXCLUSIVE_OPLOCK)
 142                 printf("EXCLUSIVE       ");
 143         else if (e->op_type & BATCH_OPLOCK)
 144                 printf("BATCH           ");
 145         else if (e->op_type & LEVEL_II_OPLOCK)
 146                 printf("LEVEL_II        ");
 147         else
 148                 printf("NONE            ");
 149         printf("</td>");
 150
 151         push_utf8_allocate(&utf8_fname, fname);
 152         printf("<td>%s</td><td>%s</td></tr>\n",
 153                utf8_fname,tstring(e->time.tv_sec));
 154         SAFE_FREE(utf8_fname);
 155 }
 156
 157
 158 /* kill off any connections chosen by the user */
 159 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 160 {
 161         struct connections_data crec;
 162
 163         if (dbuf.dsize != sizeof(crec))
 164                 return 0;
 165
 166         memcpy(&crec, dbuf.dptr, sizeof(crec));
 167
 168         if (crec.cnum == -1 && process_exists(crec.pid)) {
 169                 char buf[30];
 170                 slprintf(buf,sizeof(buf)-1,"kill_%d", (int)crec.pid);
 171                 if (cgi_variable(buf)) {
 172                         kill_pid(crec.pid);
 173                         sleep(SLEEP_TIME);
 174                 }
 175         }
 176         return 0;
 177 }
 178
 179 /* traversal fn for showing machine connections */
 180 static int traverse_fn2(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 181 {
 182         struct connections_data crec;
 183
 184         if (dbuf.dsize != sizeof(crec))
 185                 return 0;
 186
 187         memcpy(&crec, dbuf.dptr, sizeof(crec));
 188
 189         if (crec.cnum == -1 || !process_exists(crec.pid) || (crec.pid == smbd_pid))
 190                 return 0;
 191
 192         addPid2Machine (crec.pid, crec.machine);
 193
 194         printf("<tr><td>%d</td><td>%s</td><td>%s</td><td>%s</td>\n",
 195                (int)crec.pid,
 196                crec.machine,crec.addr,
 197                tstring(crec.start));
 198         if (geteuid() == 0) {
 199                 printf("<td><input type=submit value=\"X\" name=\"kill_%d\"></td>\n",
 200                        (int)crec.pid);
 201         }
 202         printf("</tr>\n");
 203
 204         return 0;
 205 }
 206
 207 /* traversal fn for showing share connections */
 208 static int traverse_fn3(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 209 {
 210         struct connections_data crec;
 211
 212         if (dbuf.dsize != sizeof(crec))
 213                 return 0;
 214
 215         memcpy(&crec, dbuf.dptr, sizeof(crec));
 216
 217         if (crec.cnum == -1 || !process_exists(crec.pid))
 218                 return 0;
 219
 220         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td></tr>\n",
 221                crec.name,uidtoname(crec.uid),
 222                gidtoname(crec.gid),(int)crec.pid,
 223                crec.machine,
 224                tstring(crec.start));
 225         return 0;
 226 }
 227
 228
 229 /* show the current server status */
 230 void status_page(void)
 231 {
 232         const char *v;
 233         int autorefresh=0;
 234         int refresh_interval=30;
 235         TDB_CONTEXT *tdb;
 236         int nr_running=0;
 237         BOOL waitup = False;
 238
 239         smbd_pid = pidfile_pid("smbd");
 240
 241         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 242                 stop_smbd();
 243                 start_smbd();
 244                 waitup=True;
 245         }
 246
 247         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 248                 start_smbd();
 249                 waitup=True;
 250         }
 251
 252         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 253                 stop_smbd();
 254                 waitup=True;
 255         }
 256
 257         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 258                 stop_nmbd();
 259                 start_nmbd();
 260                 waitup=True;
 261         }
 262         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 263                 start_nmbd();
 264                 waitup=True;
 265         }
 266
 267         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 268                 stop_nmbd();
 269                 waitup=True;
 270         }
 271
 272 #ifdef WITH_WINBIND
 273         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 274                 stop_winbindd();
 275                 start_winbindd();
 276                 waitup=True;
 277         }
 278
 279         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 280                 start_winbindd();
 281                 waitup=True;
 282         }
 283
 284         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 285                 stop_winbindd();
 286                 waitup=True;
 287         }
 288 #endif
 289         /* wait for daemons to start/stop */
 290         if (waitup)
 291                 sleep(SLEEP_TIME);
 292
 293         if (cgi_variable("autorefresh")) {
 294                 autorefresh = 1;
 295         } else if (cgi_variable("norefresh")) {
 296                 autorefresh = 0;
 297         } else if (cgi_variable("refresh")) {
 298                 autorefresh = 1;
 299         }
 300
 301         if ((v=cgi_variable("refresh_interval"))) {
 302                 refresh_interval = atoi(v);
 303         }
 304
 305         if (cgi_variable("show_client_in_col_1")) {
 306                 PID_or_Machine = 1;
 307         }
 308
 309         if (cgi_variable("show_pid_in_col_1")) {
 310                 PID_or_Machine = 0;
 311         }
 312
 313         tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 314         if (tdb) tdb_traverse(tdb, traverse_fn1, NULL);
 315
 316         initPid2Machine ();
 317
 318         printf("<H2>%s</H2>\n", _("Server Status"));
 319
 320         printf("<FORM method=post>\n");
 321
 322         if (!autorefresh) {
 323                 printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 324                 printf("<br>%s", _("Refresh Interval: "));
 325                 printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 326                        refresh_interval);
 327         } else {
 328                 printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 329                 printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 330                 printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 331         }
 332
 333         printf("<p>\n");
 334
 335         if (!tdb) {
 336                 /* open failure either means no connections have been
 337                    made */
 338         }
 339
 340
 341         printf("<table>\n");
 342
 343         printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), SAMBA_VERSION_STRING);
 344
 345         fflush(stdout);
 346         printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 347         if (geteuid() == 0) {
 348             if (smbd_running()) {
 349                 nr_running++;
 350                 printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 351             } else {
 352                 printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 353             }
 354             printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 355         }
 356         printf("</tr>\n");
 357
 358         fflush(stdout);
 359         printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 360         if (geteuid() == 0) {
 361             if (nmbd_running()) {
 362                 nr_running++;
 363                 printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 364             } else {
 365                 printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 366             }
 367             printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 368         }
 369         printf("</tr>\n");
 370
 371 #ifdef WITH_WINBIND
 372         fflush(stdout);
 373         printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 374         if (geteuid() == 0) {
 375             if (winbindd_running()) {
 376                 nr_running++;
 377                 printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 378             } else {
 379                 printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 380             }
 381             printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 382         }
 383         printf("</tr>\n");
 384 #endif
 385
 386         if (geteuid() == 0) {
 387             printf("<tr><td></td><td></td>\n");
 388             if (nr_running >= 1) {
 389                 /* stop, restart all */
 390                 printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 391                 printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 392             }
 393             else if (nr_running == 0) {
 394                 /* start all */
 395                 printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 396             }
 397             printf("</tr>\n");
 398         }
 399         printf("</table>\n");
 400         fflush(stdout);
 401
 402         printf("<p><h3>%s</h3>\n", _("Active Connections"));
 403         printf("<table border=1>\n");
 404         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 405         if (geteuid() == 0) {
 406                 printf("<th>%s</th>\n", _("Kill"));
 407         }
 408         printf("</tr>\n");
 409
 410         if (tdb) tdb_traverse(tdb, traverse_fn2, NULL);
 411
 412         printf("</table><p>\n");
 413
 414         printf("<p><h3>%s</h3>\n", _("Active Shares"));
 415         printf("<table border=1>\n");
 416         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 417                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 418
 419         if (tdb) tdb_traverse(tdb, traverse_fn3, NULL);
 420
 421         printf("</table><p>\n");
 422
 423         printf("<h3>%s</h3>\n", _("Open Files"));
 424         printf("<table border=1>\n");
 425         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"));
 426
 427         locking_init(1);
 428         share_mode_forall(print_share_mode);
 429         locking_end();
 430         printf("</table>\n");
 431
 432         if (tdb) tdb_close(tdb);
 433
 434         printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 435         printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 436
 437         printf("</FORM>\n");
 438
 439         if (autorefresh) {
 440                 /* this little JavaScript allows for automatic refresh
 441                    of the page. There are other methods but this seems
 442                    to be the best alternative */
 443                 printf("<script language=\"JavaScript\">\n");
 444                 printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 445                        cgi_baseurl(),
 446                        refresh_interval,
 447                        refresh_interval*1000);
 448                 printf("//-->\n</script>\n");
 449         }
 450 }