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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "web/swat_proto.h"
  22 #include "libcli/security/security.h"
  23 #include "locking/proto.h"
  24
  25 #define _(x) lang_msg_rotate(talloc_tos(),x)
  26
  27 #define PIDMAP          struct PidMap
  28
  29 /* how long to wait for start/stops to take effect */
  30 #define SLEEP_TIME 3
  31
  32 PIDMAP {
  33         PIDMAP  *next, *prev;
  34         struct server_id pid;
  35         char    *machine;
  36 };
  37
  38 static PIDMAP   *pidmap;
  39 static int      PID_or_Machine;         /* 0 = show PID, else show Machine name */
  40
  41 static struct server_id smbd_pid;
  42
  43 /* from 2nd call on, remove old list */
  44 static void initPid2Machine (void)
  45 {
  46         /* show machine name rather PID on table "Open Files"? */
  47         if (PID_or_Machine) {
  48                 PIDMAP *p, *next;
  49
  50                 for (p = pidmap; p != NULL; p = next) {
  51                         next = p->next;
  52                         DLIST_REMOVE(pidmap, p);
  53                         SAFE_FREE(p->machine);
  54                         SAFE_FREE(p);
  55                 }
  56
  57                 pidmap = NULL;
  58         }
  59 }
  60
  61 /* add new PID <-> Machine name mapping */
  62 static void addPid2Machine (struct server_id pid, const char *machine)
  63 {
  64         /* show machine name rather PID on table "Open Files"? */
  65         if (PID_or_Machine) {
  66                 PIDMAP *newmap;
  67
  68                 if ((newmap = SMB_MALLOC_P(PIDMAP)) == NULL) {
  69                         /* XXX need error message for this?
  70                            if malloc fails, PID is always shown */
  71                         return;
  72                 }
  73
  74                 newmap->pid = pid;
  75                 newmap->machine = SMB_STRDUP(machine);
  76
  77                 DLIST_ADD(pidmap, newmap);
  78         }
  79 }
  80
  81 /* lookup PID <-> Machine name mapping */
  82 static char *mapPid2Machine (struct server_id pid)
  83 {
  84         static char pidbuf [64];
  85         PIDMAP *map;
  86
  87         /* show machine name rather PID on table "Open Files"? */
  88         if (PID_or_Machine) {
  89                 for (map = pidmap; map != NULL; map = map->next) {
  90                         if (procid_equal(&pid, &map->pid)) {
  91                                 if (map->machine == NULL)       /* no machine name */
  92                                         break;                  /* show PID */
  93
  94                                 return map->machine;
  95                         }
  96                 }
  97         }
  98
  99         /* PID not in list or machine name NULL? return pid as string */
 100         snprintf (pidbuf, sizeof (pidbuf) - 1, "%s",
 101                   procid_str_static(&pid));
 102         return pidbuf;
 103 }
 104
 105 static const char *tstring(TALLOC_CTX *ctx, time_t t)
 106 {
 107         char *buf;
 108         buf = talloc_strdup(ctx, time_to_asc(t));
 109         if (!buf) {
 110                 return "";
 111         }
 112         buf = talloc_all_string_sub(ctx,
 113                         buf,
 114                         " ",
 115                         "&nbsp;");
 116         if (!buf) {
 117                 return "";
 118         }
 119         return buf;
 120 }
 121
 122 static void print_share_mode(const struct share_mode_entry *e,
 123                              const char *sharepath,
 124                              const char *fname,
 125                              void *dummy)
 126 {
 127         char           *utf8_fname;
 128         char           *utf8_sharepath;
 129         int deny_mode;
 130         size_t converted_size;
 131
 132         if (!is_valid_share_mode_entry(e)) {
 133                 return;
 134         }
 135
 136         deny_mode = map_share_mode_to_deny_mode(e->share_access,
 137                                                     e->private_options);
 138
 139         printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 140         printf("<td>%u</td>",(unsigned int)e->uid);
 141         printf("<td>");
 142         switch ((deny_mode>>4)&0xF) {
 143         case DENY_NONE: printf("DENY_NONE"); break;
 144         case DENY_ALL:  printf("DENY_ALL   "); break;
 145         case DENY_DOS:  printf("DENY_DOS   "); break;
 146         case DENY_FCB:  printf("DENY_FCB   "); break;
 147         case DENY_READ: printf("DENY_READ  "); break;
 148         case DENY_WRITE:printf("DENY_WRITE "); break;
 149         }
 150         printf("</td>");
 151
 152         printf("<td>");
 153         if (e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA)) {
 154                 printf("%s", _("RDWR       "));
 155         } else if (e->access_mask & FILE_WRITE_DATA) {
 156                 printf("%s", _("WRONLY     "));
 157         } else {
 158                 printf("%s", _("RDONLY     "));
 159         }
 160         printf("</td>");
 161
 162         printf("<td>");
 163         if((e->op_type &
 164             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 165            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 166                 printf("EXCLUSIVE+BATCH ");
 167         else if (e->op_type & EXCLUSIVE_OPLOCK)
 168                 printf("EXCLUSIVE       ");
 169         else if (e->op_type & BATCH_OPLOCK)
 170                 printf("BATCH           ");
 171         else if (e->op_type & LEVEL_II_OPLOCK)
 172                 printf("LEVEL_II        ");
 173         else
 174                 printf("NONE            ");
 175         printf("</td>");
 176
 177         push_utf8_talloc(talloc_tos(), &utf8_fname, fname, &converted_size);
 178         push_utf8_talloc(talloc_tos(), &utf8_sharepath, sharepath,
 179                          &converted_size);
 180         printf("<td>%s</td><td>%s</td><td>%s</td></tr>\n",
 181                utf8_sharepath,utf8_fname,tstring(talloc_tos(),e->time.tv_sec));
 182         TALLOC_FREE(utf8_fname);
 183 }
 184
 185
 186 /* kill off any connections chosen by the user */
 187 static int traverse_fn1(const struct connections_key *key,
 188                         const struct connections_data *crec,
 189                         void *private_data)
 190 {
 191         if (crec->cnum == -1 && process_exists(crec->pid)) {
 192                 char buf[30];
 193                 slprintf(buf,sizeof(buf)-1,"kill_%s", procid_str_static(&crec->pid));
 194                 if (cgi_variable(buf)) {
 195                         kill_pid(crec->pid);
 196                         sleep(SLEEP_TIME);
 197                 }
 198         }
 199         return 0;
 200 }
 201
 202 /* traversal fn for showing machine connections */
 203 static int traverse_fn2(const struct connections_key *key,
 204                         const struct connections_data *crec,
 205                         void *private_data)
 206 {
 207         if (crec->cnum == -1 || !process_exists(crec->pid) ||
 208             procid_equal(&crec->pid, &smbd_pid))
 209                 return 0;
 210
 211         addPid2Machine (crec->pid, crec->machine);
 212
 213         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td>\n",
 214                procid_str_static(&crec->pid),
 215                crec->machine, crec->addr,
 216                tstring(talloc_tos(),crec->start));
 217         if (geteuid() == 0) {
 218                 printf("<td><input type=submit value=\"X\" name=\"kill_%s\"></td>\n",
 219                        procid_str_static(&crec->pid));
 220         }
 221         printf("</tr>\n");
 222
 223         return 0;
 224 }
 225
 226 /* traversal fn for showing share connections */
 227 static int traverse_fn3(const struct connections_key *key,
 228                         const struct connections_data *crec,
 229                         void *private_data)
 230 {
 231         if (crec->cnum == -1 || !process_exists(crec->pid))
 232                 return 0;
 233
 234         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>\n",
 235                crec->servicename, uidtoname(crec->uid),
 236                gidtoname(crec->gid),procid_str_static(&crec->pid),
 237                crec->machine,
 238                tstring(talloc_tos(),crec->start));
 239         return 0;
 240 }
 241
 242
 243 /* show the current server status */
 244 void status_page(void)
 245 {
 246         const char *v;
 247         int autorefresh=0;
 248         int refresh_interval=30;
 249         int nr_running=0;
 250         bool waitup = False;
 251         TALLOC_CTX *ctx = talloc_stackframe();
 252         const char form_name[] = "status";
 253
 254         smbd_pid = pid_to_procid(pidfile_pid("smbd"));
 255
 256         if (!verify_xsrf_token(form_name)) {
 257                 goto output_page;
 258         }
 259
 260         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 261                 stop_smbd();
 262                 start_smbd();
 263                 waitup=True;
 264         }
 265
 266         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 267                 start_smbd();
 268                 waitup=True;
 269         }
 270
 271         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 272                 stop_smbd();
 273                 waitup=True;
 274         }
 275
 276         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 277                 stop_nmbd();
 278                 start_nmbd();
 279                 waitup=True;
 280         }
 281         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 282                 start_nmbd();
 283                 waitup=True;
 284         }
 285
 286         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 287                 stop_nmbd();
 288                 waitup=True;
 289         }
 290
 291 #ifdef WITH_WINBIND
 292         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 293                 stop_winbindd();
 294                 start_winbindd();
 295                 waitup=True;
 296         }
 297
 298         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 299                 start_winbindd();
 300                 waitup=True;
 301         }
 302
 303         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 304                 stop_winbindd();
 305                 waitup=True;
 306         }
 307 #endif
 308         /* wait for daemons to start/stop */
 309         if (waitup)
 310                 sleep(SLEEP_TIME);
 311
 312         if (cgi_variable("autorefresh")) {
 313                 autorefresh = 1;
 314         } else if (cgi_variable("norefresh")) {
 315                 autorefresh = 0;
 316         } else if (cgi_variable("refresh")) {
 317                 autorefresh = 1;
 318         }
 319
 320         if ((v=cgi_variable("refresh_interval"))) {
 321                 refresh_interval = atoi(v);
 322         }
 323
 324         if (cgi_variable("show_client_in_col_1")) {
 325                 PID_or_Machine = 1;
 326         }
 327
 328         if (cgi_variable("show_pid_in_col_1")) {
 329                 PID_or_Machine = 0;
 330         }
 331
 332         connections_forall_read(traverse_fn1, NULL);
 333
 334         initPid2Machine ();
 335
 336 output_page:
 337         printf("<H2>%s</H2>\n", _("Server Status"));
 338
 339         printf("<FORM method=post>\n");
 340         print_xsrf_token(cgi_user_name(), cgi_user_pass(), form_name);
 341
 342         if (!autorefresh) {
 343                 printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 344                 printf("<br>%s", _("Refresh Interval: "));
 345                 printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 346                        refresh_interval);
 347         } else {
 348                 printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 349                 printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 350                 printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 351         }
 352
 353         printf("<p>\n");
 354
 355         printf("<table>\n");
 356
 357         printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), samba_version_string());
 358
 359         fflush(stdout);
 360         printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 361         if (geteuid() == 0) {
 362             if (smbd_running()) {
 363                 nr_running++;
 364                 printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 365             } else {
 366                 printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 367             }
 368             printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 369         }
 370         printf("</tr>\n");
 371
 372         fflush(stdout);
 373         printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 374         if (geteuid() == 0) {
 375             if (nmbd_running()) {
 376                 nr_running++;
 377                 printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 378             } else {
 379                 printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 380             }
 381             printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 382         }
 383         printf("</tr>\n");
 384
 385 #ifdef WITH_WINBIND
 386         fflush(stdout);
 387         printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 388         if (geteuid() == 0) {
 389             if (winbindd_running()) {
 390                 nr_running++;
 391                 printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 392             } else {
 393                 printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 394             }
 395             printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 396         }
 397         printf("</tr>\n");
 398 #endif
 399
 400         if (geteuid() == 0) {
 401             printf("<tr><td></td><td></td>\n");
 402             if (nr_running >= 1) {
 403                 /* stop, restart all */
 404                 printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 405                 printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 406             }
 407             else if (nr_running == 0) {
 408                 /* start all */
 409                 printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 410             }
 411             printf("</tr>\n");
 412         }
 413         printf("</table>\n");
 414         fflush(stdout);
 415
 416         printf("<p><h3>%s</h3>\n", _("Active Connections"));
 417         printf("<table border=1>\n");
 418         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 419         if (geteuid() == 0) {
 420                 printf("<th>%s</th>\n", _("Kill"));
 421         }
 422         printf("</tr>\n");
 423
 424         connections_forall_read(traverse_fn2, NULL);
 425
 426         printf("</table><p>\n");
 427
 428         printf("<p><h3>%s</h3>\n", _("Active Shares"));
 429         printf("<table border=1>\n");
 430         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 431                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 432
 433         connections_forall_read(traverse_fn3, NULL);
 434
 435         printf("</table><p>\n");
 436
 437         printf("<h3>%s</h3>\n", _("Open Files"));
 438         printf("<table border=1>\n");
 439         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n",
 440                 _("PID"), _("UID"), _("Sharing"), _("R/W"), _("Oplock"), _("Share"), _("File"), _("Date"));
 441
 442         locking_init_readonly();
 443         share_mode_forall(print_share_mode, NULL);
 444         locking_end();
 445         printf("</table>\n");
 446
 447         printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 448         printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 449
 450         printf("</FORM>\n");
 451
 452         if (autorefresh) {
 453                 /* this little JavaScript allows for automatic refresh
 454                    of the page. There are other methods but this seems
 455                    to be the best alternative */
 456                 printf("<script language=\"JavaScript\">\n");
 457                 printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 458                        cgi_baseurl(),
 459                        refresh_interval,
 460                        refresh_interval*1000);
 461                 printf("//-->\n</script>\n");
 462         }
 463         TALLOC_FREE(ctx);
 464 }