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 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
  23 #define _(x) lang_msg_rotate(talloc_tos(),x)
  24
  25 #define PIDMAP          struct PidMap
  26
  27 /* how long to wait for start/stops to take effect */
  28 #define SLEEP_TIME 3
  29
  30 PIDMAP {
  31         PIDMAP  *next, *prev;
  32         struct server_id pid;
  33         char    *machine;
  34 };
  35
  36 static PIDMAP   *pidmap;
  37 static int      PID_or_Machine;         /* 0 = show PID, else show Machine name */
  38
  39 static struct server_id smbd_pid;
  40
  41 /* from 2nd call on, remove old list */
  42 static void initPid2Machine (void)
  43 {
  44         /* show machine name rather PID on table "Open Files"? */
  45         if (PID_or_Machine) {
  46                 PIDMAP *p, *next;
  47
  48                 for (p = pidmap; p != NULL; p = next) {
  49                         next = p->next;
  50                         DLIST_REMOVE(pidmap, p);
  51                         SAFE_FREE(p->machine);
  52                         SAFE_FREE(p);
  53                 }
  54
  55                 pidmap = NULL;
  56         }
  57 }
  58
  59 /* add new PID <-> Machine name mapping */
  60 static void addPid2Machine (struct server_id pid, const char *machine)
  61 {
  62         /* show machine name rather PID on table "Open Files"? */
  63         if (PID_or_Machine) {
  64                 PIDMAP *newmap;
  65
  66                 if ((newmap = SMB_MALLOC_P(PIDMAP)) == NULL) {
  67                         /* XXX need error message for this?
  68                            if malloc fails, PID is always shown */
  69                         return;
  70                 }
  71
  72                 newmap->pid = pid;
  73                 newmap->machine = SMB_STRDUP(machine);
  74
  75                 DLIST_ADD(pidmap, newmap);
  76         }
  77 }
  78
  79 /* lookup PID <-> Machine name mapping */
  80 static char *mapPid2Machine (struct server_id pid)
  81 {
  82         static char pidbuf [64];
  83         PIDMAP *map;
  84
  85         /* show machine name rather PID on table "Open Files"? */
  86         if (PID_or_Machine) {
  87                 for (map = pidmap; map != NULL; map = map->next) {
  88                         if (procid_equal(&pid, &map->pid)) {
  89                                 if (map->machine == NULL)       /* no machine name */
  90                                         break;                  /* show PID */
  91
  92                                 return map->machine;
  93                         }
  94                 }
  95         }
  96
  97         /* PID not in list or machine name NULL? return pid as string */
  98         snprintf (pidbuf, sizeof (pidbuf) - 1, "%s",
  99                   procid_str_static(&pid));
 100         return pidbuf;
 101 }
 102
 103 static const char *tstring(TALLOC_CTX *ctx, time_t t)
 104 {
 105         char *buf;
 106         buf = talloc_strdup(ctx, time_to_asc(t));
 107         if (!buf) {
 108                 return "";
 109         }
 110         buf = talloc_all_string_sub(ctx,
 111                         buf,
 112                         " ",
 113                         "&nbsp;");
 114         if (!buf) {
 115                 return "";
 116         }
 117         return buf;
 118 }
 119
 120 static void print_share_mode(const struct share_mode_entry *e,
 121                              const char *sharepath,
 122                              const char *fname,
 123                              void *dummy)
 124 {
 125         char           *utf8_fname;
 126         int deny_mode;
 127         size_t converted_size;
 128
 129         if (!is_valid_share_mode_entry(e)) {
 130                 return;
 131         }
 132
 133         deny_mode = map_share_mode_to_deny_mode(e->share_access,
 134                                                     e->private_options);
 135
 136         printf("<tr><td>%s</td>",_(mapPid2Machine(e->pid)));
 137         printf("<td>%u</td>",(unsigned int)e->uid);
 138         printf("<td>");
 139         switch ((deny_mode>>4)&0xF) {
 140         case DENY_NONE: printf("DENY_NONE"); break;
 141         case DENY_ALL:  printf("DENY_ALL   "); break;
 142         case DENY_DOS:  printf("DENY_DOS   "); break;
 143         case DENY_FCB:  printf("DENY_FCB   "); break;
 144         case DENY_READ: printf("DENY_READ  "); break;
 145         case DENY_WRITE:printf("DENY_WRITE "); break;
 146         }
 147         printf("</td>");
 148
 149         printf("<td>");
 150         if (e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA)) {
 151                 printf("%s", _("RDWR       "));
 152         } else if (e->access_mask & FILE_WRITE_DATA) {
 153                 printf("%s", _("WRONLY     "));
 154         } else {
 155                 printf("%s", _("RDONLY     "));
 156         }
 157         printf("</td>");
 158
 159         printf("<td>");
 160         if((e->op_type &
 161             (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 162            (EXCLUSIVE_OPLOCK|BATCH_OPLOCK))
 163                 printf("EXCLUSIVE+BATCH ");
 164         else if (e->op_type & EXCLUSIVE_OPLOCK)
 165                 printf("EXCLUSIVE       ");
 166         else if (e->op_type & BATCH_OPLOCK)
 167                 printf("BATCH           ");
 168         else if (e->op_type & LEVEL_II_OPLOCK)
 169                 printf("LEVEL_II        ");
 170         else
 171                 printf("NONE            ");
 172         printf("</td>");
 173
 174         push_utf8_allocate(&utf8_fname, fname, &converted_size);
 175         printf("<td>%s</td><td>%s</td></tr>\n",
 176                utf8_fname,tstring(talloc_tos(),e->time.tv_sec));
 177         SAFE_FREE(utf8_fname);
 178 }
 179
 180
 181 /* kill off any connections chosen by the user */
 182 static int traverse_fn1(struct db_record *rec,
 183                         const struct connections_key *key,
 184                         const struct connections_data *crec,
 185                         void *private_data)
 186 {
 187         if (crec->cnum == -1 && process_exists(crec->pid)) {
 188                 char buf[30];
 189                 slprintf(buf,sizeof(buf)-1,"kill_%s", procid_str_static(&crec->pid));
 190                 if (cgi_variable(buf)) {
 191                         kill_pid(crec->pid);
 192                         sleep(SLEEP_TIME);
 193                 }
 194         }
 195         return 0;
 196 }
 197
 198 /* traversal fn for showing machine connections */
 199 static int traverse_fn2(struct db_record *rec,
 200                         const struct connections_key *key,
 201                         const struct connections_data *crec,
 202                         void *private_data)
 203 {
 204         if (crec->cnum == -1 || !process_exists(crec->pid) ||
 205             procid_equal(&crec->pid, &smbd_pid))
 206                 return 0;
 207
 208         addPid2Machine (crec->pid, crec->machine);
 209
 210         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td>\n",
 211                procid_str_static(&crec->pid),
 212                crec->machine, crec->addr,
 213                tstring(talloc_tos(),crec->start));
 214         if (geteuid() == 0) {
 215                 printf("<td><input type=submit value=\"X\" name=\"kill_%s\"></td>\n",
 216                        procid_str_static(&crec->pid));
 217         }
 218         printf("</tr>\n");
 219
 220         return 0;
 221 }
 222
 223 /* traversal fn for showing share connections */
 224 static int traverse_fn3(struct db_record *rec,
 225                         const struct connections_key *key,
 226                         const struct connections_data *crec,
 227                         void *private_data)
 228 {
 229         if (crec->cnum == -1 || !process_exists(crec->pid))
 230                 return 0;
 231
 232         printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>\n",
 233                crec->servicename, uidtoname(crec->uid),
 234                gidtoname(crec->gid),procid_str_static(&crec->pid),
 235                crec->machine,
 236                tstring(talloc_tos(),crec->start));
 237         return 0;
 238 }
 239
 240
 241 /* show the current server status */
 242 void status_page(void)
 243 {
 244         const char *v;
 245         int autorefresh=0;
 246         int refresh_interval=30;
 247         int nr_running=0;
 248         bool waitup = False;
 249         TALLOC_CTX *ctx = talloc_stackframe();
 250         const char form_name[] = "status";
 251
 252         smbd_pid = pid_to_procid(pidfile_pid("smbd"));
 253
 254         if (!verify_xsrf_token(form_name)) {
 255                 goto output_page;
 256         }
 257
 258         if (cgi_variable("smbd_restart") || cgi_variable("all_restart")) {
 259                 stop_smbd();
 260                 start_smbd();
 261                 waitup=True;
 262         }
 263
 264         if (cgi_variable("smbd_start") || cgi_variable("all_start")) {
 265                 start_smbd();
 266                 waitup=True;
 267         }
 268
 269         if (cgi_variable("smbd_stop") || cgi_variable("all_stop")) {
 270                 stop_smbd();
 271                 waitup=True;
 272         }
 273
 274         if (cgi_variable("nmbd_restart") || cgi_variable("all_restart")) {
 275                 stop_nmbd();
 276                 start_nmbd();
 277                 waitup=True;
 278         }
 279         if (cgi_variable("nmbd_start") || cgi_variable("all_start")) {
 280                 start_nmbd();
 281                 waitup=True;
 282         }
 283
 284         if (cgi_variable("nmbd_stop")|| cgi_variable("all_stop")) {
 285                 stop_nmbd();
 286                 waitup=True;
 287         }
 288
 289 #ifdef WITH_WINBIND
 290         if (cgi_variable("winbindd_restart") || cgi_variable("all_restart")) {
 291                 stop_winbindd();
 292                 start_winbindd();
 293                 waitup=True;
 294         }
 295
 296         if (cgi_variable("winbindd_start") || cgi_variable("all_start")) {
 297                 start_winbindd();
 298                 waitup=True;
 299         }
 300
 301         if (cgi_variable("winbindd_stop") || cgi_variable("all_stop")) {
 302                 stop_winbindd();
 303                 waitup=True;
 304         }
 305 #endif
 306         /* wait for daemons to start/stop */
 307         if (waitup)
 308                 sleep(SLEEP_TIME);
 309
 310         if (cgi_variable("autorefresh")) {
 311                 autorefresh = 1;
 312         } else if (cgi_variable("norefresh")) {
 313                 autorefresh = 0;
 314         } else if (cgi_variable("refresh")) {
 315                 autorefresh = 1;
 316         }
 317
 318         if ((v=cgi_variable("refresh_interval"))) {
 319                 refresh_interval = atoi(v);
 320         }
 321
 322         if (cgi_variable("show_client_in_col_1")) {
 323                 PID_or_Machine = 1;
 324         }
 325
 326         if (cgi_variable("show_pid_in_col_1")) {
 327                 PID_or_Machine = 0;
 328         }
 329
 330         connections_forall(traverse_fn1, NULL);
 331
 332         initPid2Machine ();
 333
 334 output_page:
 335         printf("<H2>%s</H2>\n", _("Server Status"));
 336
 337         printf("<FORM method=post>\n");
 338         print_xsrf_token(cgi_user_name(), cgi_user_pass(), form_name);
 339
 340         if (!autorefresh) {
 341                 printf("<input type=submit value=\"%s\" name=\"autorefresh\">\n", _("Auto Refresh"));
 342                 printf("<br>%s", _("Refresh Interval: "));
 343                 printf("<input type=text size=2 name=\"refresh_interval\" value=\"%d\">\n",
 344                        refresh_interval);
 345         } else {
 346                 printf("<input type=submit value=\"%s\" name=\"norefresh\">\n", _("Stop Refreshing"));
 347                 printf("<br>%s%d\n", _("Refresh Interval: "), refresh_interval);
 348                 printf("<input type=hidden name=\"refresh\" value=\"1\">\n");
 349         }
 350
 351         printf("<p>\n");
 352
 353         printf("<table>\n");
 354
 355         printf("<tr><td>%s</td><td>%s</td></tr>", _("version:"), SAMBA_VERSION_STRING);
 356
 357         fflush(stdout);
 358         printf("<tr><td>%s</td><td>%s</td>\n", _("smbd:"), smbd_running()?_("running"):_("not running"));
 359         if (geteuid() == 0) {
 360             if (smbd_running()) {
 361                 nr_running++;
 362                 printf("<td><input type=submit name=\"smbd_stop\" value=\"%s\"></td>\n", _("Stop smbd"));
 363             } else {
 364                 printf("<td><input type=submit name=\"smbd_start\" value=\"%s\"></td>\n", _("Start smbd"));
 365             }
 366             printf("<td><input type=submit name=\"smbd_restart\" value=\"%s\"></td>\n", _("Restart smbd"));
 367         }
 368         printf("</tr>\n");
 369
 370         fflush(stdout);
 371         printf("<tr><td>%s</td><td>%s</td>\n", _("nmbd:"), nmbd_running()?_("running"):_("not running"));
 372         if (geteuid() == 0) {
 373             if (nmbd_running()) {
 374                 nr_running++;
 375                 printf("<td><input type=submit name=\"nmbd_stop\" value=\"%s\"></td>\n", _("Stop nmbd"));
 376             } else {
 377                 printf("<td><input type=submit name=\"nmbd_start\" value=\"%s\"></td>\n", _("Start nmbd"));
 378             }
 379             printf("<td><input type=submit name=\"nmbd_restart\" value=\"%s\"></td>\n", _("Restart nmbd"));
 380         }
 381         printf("</tr>\n");
 382
 383 #ifdef WITH_WINBIND
 384         fflush(stdout);
 385         printf("<tr><td>%s</td><td>%s</td>\n", _("winbindd:"), winbindd_running()?_("running"):_("not running"));
 386         if (geteuid() == 0) {
 387             if (winbindd_running()) {
 388                 nr_running++;
 389                 printf("<td><input type=submit name=\"winbindd_stop\" value=\"%s\"></td>\n", _("Stop winbindd"));
 390             } else {
 391                 printf("<td><input type=submit name=\"winbindd_start\" value=\"%s\"></td>\n", _("Start winbindd"));
 392             }
 393             printf("<td><input type=submit name=\"winbindd_restart\" value=\"%s\"></td>\n", _("Restart winbindd"));
 394         }
 395         printf("</tr>\n");
 396 #endif
 397
 398         if (geteuid() == 0) {
 399             printf("<tr><td></td><td></td>\n");
 400             if (nr_running >= 1) {
 401                 /* stop, restart all */
 402                 printf("<td><input type=submit name=\"all_stop\" value=\"%s\"></td>\n", _("Stop All"));
 403                 printf("<td><input type=submit name=\"all_restart\" value=\"%s\"></td>\n", _("Restart All"));
 404             }
 405             else if (nr_running == 0) {
 406                 /* start all */
 407                 printf("<td><input type=submit name=\"all_start\" value=\"%s\"></td>\n", _("Start All"));
 408             }
 409             printf("</tr>\n");
 410         }
 411         printf("</table>\n");
 412         fflush(stdout);
 413
 414         printf("<p><h3>%s</h3>\n", _("Active Connections"));
 415         printf("<table border=1>\n");
 416         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th>\n", _("PID"), _("Client"), _("IP address"), _("Date"));
 417         if (geteuid() == 0) {
 418                 printf("<th>%s</th>\n", _("Kill"));
 419         }
 420         printf("</tr>\n");
 421
 422         connections_forall(traverse_fn2, NULL);
 423
 424         printf("</table><p>\n");
 425
 426         printf("<p><h3>%s</h3>\n", _("Active Shares"));
 427         printf("<table border=1>\n");
 428         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n\n",
 429                 _("Share"), _("User"), _("Group"), _("PID"), _("Client"), _("Date"));
 430
 431         connections_forall(traverse_fn3, NULL);
 432
 433         printf("</table><p>\n");
 434
 435         printf("<h3>%s</h3>\n", _("Open Files"));
 436         printf("<table border=1>\n");
 437         printf("<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n",
 438                 _("PID"), _("UID"), _("Sharing"), _("R/W"), _("Oplock"), _("File"), _("Date"));
 439
 440         locking_init_readonly();
 441         share_mode_forall(print_share_mode, NULL);
 442         locking_end();
 443         printf("</table>\n");
 444
 445         printf("<br><input type=submit name=\"show_client_in_col_1\" value=\"%s\">\n", _("Show Client in col 1"));
 446         printf("<input type=submit name=\"show_pid_in_col_1\" value=\"%s\">\n", _("Show PID in col 1"));
 447
 448         printf("</FORM>\n");
 449
 450         if (autorefresh) {
 451                 /* this little JavaScript allows for automatic refresh
 452                    of the page. There are other methods but this seems
 453                    to be the best alternative */
 454                 printf("<script language=\"JavaScript\">\n");
 455                 printf("<!--\nsetTimeout('window.location.replace(\"%s/status?refresh_interval=%d&refresh=1\")', %d)\n",
 456                        cgi_baseurl(),
 457                        refresh_interval,
 458                        refresh_interval*1000);
 459                 printf("//-->\n</script>\n");
 460         }
 461         TALLOC_FREE(ctx);
 462 }