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 PIDMAP {
  27         PIDMAP  *next, *prev;
  28         pid_t   pid;
  29         char    *machine;
  30 };
  31
  32 static PIDMAP   *pidmap;
  33 static int      PID_or_Machine;         /* 0 = show PID, else show Machine name */
  34
  35 static pid_t smbd_pid;
  36
  37 /* from 2nd call on, remove old list */
  38 static void initPid2Machine (void)
  39 {
  40         /* show machine name rather PID on table "Open Files"? */
  41         if (PID_or_Machine) {
  42                 PIDMAP *p;
  43
  44                 for (p = pidmap; p != NULL; ) {
  45                         DLIST_REMOVE(pidmap, p);
  46                         SAFE_FREE(p->machine);
  47                         SAFE_FREE(p);
  48                 }
  49
  50                 pidmap = NULL;
  51         }
  52 }
  53
  54 /* add new PID <-> Machine name mapping */
  55 static void addPid2Machine (pid_t pid, char *machine)
  56 {
  57         /* show machine name rather PID on table "Open Files"? */
  58         if (PID_or_Machine) {
  59                 PIDMAP *newmap;
  60
  61                 if ((newmap = (PIDMAP *) malloc (sizeof (PIDMAP))) == NULL) {
  62                         /* XXX need error message for this?
  63                            if malloc fails, PID is always shown */
  64                         return;
  65                 }
  66
  67                 newmap->pid = pid;
  68                 newmap->machine = strdup (machine);
  69
  70                 DLIST_ADD(pidmap, newmap);
  71         }
  72 }
  73
  74 /* lookup PID <-> Machine name mapping */
  75 static char *mapPid2Machine (pid_t pid)
  76 {
  77         static char pidbuf [64];
  78         PIDMAP *map;
  79
  80         /* show machine name rather PID on table "Open Files"? */
  81         if (PID_or_Machine) {
  82                 for (map = pidmap; map != NULL; map = map->next) {
  83                         if (pid == map->pid) {
  84                                 if (map->machine == NULL)       /* no machine name */
  85                                         break;                  /* show PID */
  86
  87                                 return map->machine;
  88                         }
  89                 }
  90         }
  91
  92         /* PID not in list or machine name NULL? return pid as string */
  93         snprintf (pidbuf, sizeof (pidbuf) - 1, "%d", pid);
  94         return pidbuf;
  95 }
  96
  97 static char *tstring(time_t t)
  98 {
  99         static pstring buf;
 100         pstrcpy(buf, asctime(LocalTime(&t)));
 101         all_string_sub(buf," ","&nbsp;",sizeof(buf));
 102         return buf;
 103 }
 104
 105 static void print_share_mode(share_mode_entry *e, char *fname)
 106 {
 107         d_printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 108         d_printf("<td>");
 109         switch ((e->share_mode>>4)&0xF) {
 110         case DENY_NONE: d_printf("DENY_NONE"); break;
 111         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 112         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 113         case DENY_READ: d_printf("DENY_READ  "); break;
 114         case DENY_WRITE:d_printf("DENY_WRITE "); break;
 115         }
 116         d_printf("</td>");
 117
 118         d_printf("<td>");
 119         switch (e->share_mode&0xF) {
 120         case 0: d_printf("RDONLY     "); break;
 121         case 1: d_printf("WRONLY     "); break;
 122         case 2: d_printf("RDWR       "); break;
 123         }
 124         d_printf("</td>");
 125
 126         d_printf("<td>");
 127         if((e->op_type &
 128             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 129            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 130                 d_printf("EXCLUSIVE+BATCH ");
 131         else if (e->op_type & EXCLUSIVE_OPLOCK)
 132                 d_printf("EXCLUSIVE       ");
 133         else if (e->op_type & BATCH_OPLOCK)
 134                 d_printf("BATCH           ");
 135         else if (e->op_type & LEVEL_II_OPLOCK)
 136                 d_printf("LEVEL_II        ");
 137         else
 138                 d_printf("NONE            ");
 139         d_printf("</td>");
 140
 141         d_printf("<td>%s</td><td>%s</td></tr>\n",
 142                fname,tstring(e->time.tv_sec));
 143 }
 144
 145
 146 /* kill off any connections chosen by the user */
 147 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 148 {
 149         struct connections_data crec;
 150
 151         if (dbuf.dsize != sizeof(crec))
 152                 return 0;
 153
 154         memcpy(&crec, dbuf.dptr, sizeof(crec));
 155
 156         if (crec.cnum == -1 && process_exists(crec.pid)) {
 157                 char buf[30];
 158                 slprintf(buf,sizeof(buf)-1,"kill_%d", (int)crec.pid);
 159                 if (cgi_variable(buf)) {
 160                         kill_pid(crec.pid);
 161                 }
 162         }
 163         return 0;
 164 }
 165
 166 /* traversal fn for showing machine connections */
 167 static int traverse_fn2(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 168 {
 169         struct connections_data crec;
 170
 171         if (dbuf.dsize != sizeof(crec))
 172                 return 0;
 173
 174         memcpy(&crec, dbuf.dptr, sizeof(crec));
 175
 176         if (crec.cnum != -1 || !process_exists(crec.pid) || (crec.pid == smbd_pid))
 177                 return 0;
 178
 179         addPid2Machine (crec.pid, crec.machine);
 180
 181         d_printf("<tr><td>%d</td><td>%s</td><td>%s</td><td>%s</td>\n",
 182                (int)crec.pid,
 183                crec.machine,crec.addr,
 184                tstring(crec.start));
 185         if (geteuid() == 0) {
 186                 d_printf("<td><input type=submit value=\"X\" name=\"kill_%d\"></td>\n",
 187                        (int)crec.pid);
 188         }
 189         d_printf("</tr>\n");
 190
 191         return 0;
 192 }
 193
 194 /* traversal fn for showing share connections */
 195 static int traverse_fn3(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void* state)
 196 {
 197         struct connections_data crec;
 198         TALLOC_CTX *mem_ctx;
 199
 200         if (dbuf.dsize != sizeof(crec))
 201                 return 0;
 202
 203         memcpy(&crec, dbuf.dptr, sizeof(crec));
 204
 205         if (crec.cnum == -1 || !process_exists(crec.pid))
 206                 return 0;
 207
 208         mem_ctx = talloc_init("smbgroupedit talloc");
 209         if (!mem_ctx) return -1;
 210         d_printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td></tr>\n",
 211                crec.name,uidtoname(crec.uid),
 212                gidtoname(mem_ctx, crec.gid),(int)crec.pid,
 213                crec.machine,
 214                tstring(crec.start));
 215         talloc_destroy(mem_ctx);
 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
 228         smbd_pid = pidfile_pid("smbd");
 229
 230         if (cgi_variable("smbd_restart")) {
 231                 stop_smbd();
 232                 start_smbd();
 233         }
 234
 235         if (cgi_variable("smbd_start")) {
 236                 start_smbd();
 237         }
 238
 239         if (cgi_variable("smbd_stop")) {
 240                 stop_smbd();
 241         }
 242
 243         if (cgi_variable("nmbd_restart")) {
 244                 stop_nmbd();
 245                 start_nmbd();
 246         }
 247         if (cgi_variable("nmbd_start")) {
 248                 start_nmbd();
 249         }
 250
 251         if (cgi_variable("nmbd_stop")) {
 252                 stop_nmbd();
 253         }
 254
 255 #ifdef WITH_WINBIND
 256         if (cgi_variable("winbindd_restart")) {
 257                 stop_winbindd();
 258                 start_winbindd();
 259         }
 260
 261         if (cgi_variable("winbindd_start")) {
 262                 start_winbindd();
 263         }
 264
 265         if (cgi_variable("winbindd_stop")) {
 266                 stop_winbindd();
 267         }
 268 #endif
 269         if (cgi_variable("autorefresh")) {
 270                 autorefresh = 1;
 271         } else if (cgi_variable("norefresh")) {
 272                 autorefresh = 0;
 273         } else if (cgi_variable("refresh")) {
 274                 autorefresh = 1;
 275         }
 276
 277         if ((v=cgi_variable("refresh_interval"))) {
 278                 refresh_interval = atoi(v);
 279         }
 280
 281         if (cgi_variable("show_client_in_col_1")) {
 282                 PID_or_Machine = 1;
 283         }
 284
 285         tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 286         if (tdb) tdb_traverse(tdb, traverse_fn1, NULL);
 287
 288         initPid2Machine ();
 289
 290         d_printf("<H2>%s</H2>\n", _("Server Status"));
 291
 292         d_printf("<FORM method=post>\n");
 293
 294         if (!autorefresh) {
 295                 d_printf("<input type=submit value=\"%s\" name=autorefresh>\n", _("Auto Refresh"));
 296                 d_printf("<br>%s", _("Refresh Interval: "));
 297                 d_printf("<input type=text size=2 name=\"refresh_interval\" value=%d>\n",
 298                        refresh_interval);
 299         } else {
 300                 d_printf("<input type=submit value=\"%s\" name=norefresh>\n", _("Stop Refreshing"));
 301                 d_printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 302                 d_printf("<input type=hidden name=refresh value=1>\n");
 303         }
 304
 305         d_printf("<p>\n");
 306
 307         if (!tdb) {
 308                 /* open failure either means no connections have been
 309                    made */
 310         }
 311
 312
 313         d_printf("<table>\n");
 314
 315         d_printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), VERSION);
 316
 317         fflush(stdout);
 318         d_printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 319         if (geteuid() == 0) {
 320             if (smbd_running()) {
 321                 d_printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 322             } else {
 323                 d_printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 324             }
 325             d_printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 326         }
 327         d_printf("</tr>\n");
 328
 329         fflush(stdout);
 330         d_printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 331         if (geteuid() == 0) {
 332             if (nmbd_running()) {
 333                 d_printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 334             } else {
 335                 d_printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 336             }
 337             d_printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 338         }
 339         d_printf("</tr>\n");
 340
 341 #ifdef WITH_WINBIND
 342         fflush(stdout);
 343         d_printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 344         if (geteuid() == 0) {
 345             if (winbindd_running()) {
 346                 d_printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 347             } else {
 348                 d_printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 349             }
 350             d_printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 351         }
 352         d_printf("</tr>\n");
 353 #endif
 354
 355         d_printf("</table>\n");
 356         fflush(stdout);
 357
 358         d_printf("<p><h3>%s</h3>\n", _("Active Connections"));
 359         d_printf("<table border=1>\n");
 360         d_printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 361         if (geteuid() == 0) {
 362                 d_printf("<th>%s</th>\n", _("Kill"));
 363         }
 364         d_printf("</tr>\n");
 365
 366         if (tdb) tdb_traverse(tdb, traverse_fn2, NULL);
 367
 368         d_printf("</table><p>\n");
 369
 370         d_printf("<p><h3>%s</h3>\n", _("Active Shares"));
 371         d_printf("<table border=1>\n");
 372         d_printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 373                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 374
 375         if (tdb) tdb_traverse(tdb, traverse_fn3, NULL);
 376
 377         d_printf("</table><p>\n");
 378
 379         d_printf("<h3>%s</h3>\n", _("Open Files"));
 380         d_printf("<table border=1>\n");
 381         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"));
 382
 383         locking_init(1);
 384         share_mode_forall(print_share_mode);
 385         locking_end();
 386         d_printf("</table>\n");
 387
 388         if (tdb) tdb_close(tdb);
 389
 390         d_printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"Show Client in col 1\">\n");
 391         d_printf("<input type=submit name=\"show_pid_in_col_1\" value=\"Show PID in col 1\">\n");
 392
 393         d_printf("</FORM>\n");
 394
 395         if (autorefresh) {
 396                 /* this little JavaScript allows for automatic refresh
 397                    of the page. There are other methods but this seems
 398                    to be the best alternative */
 399                 d_printf("<script language=\"JavaScript\">\n");
 400                 d_printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 401                        cgi_baseurl(),
 402                        refresh_interval,
 403                        refresh_interval*1000);
 404                 d_printf("//-->\n</script>\n");
 405         }
 406 }