src/main-afb-daemon.c

   1 /*
   2  * Copyright (C) 2015-2018 "IoT.bzh"
   3  * Author "Fulup Ar Foll"
   4  * Author José Bollo <jose.bollo@iot.bzh>
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #define _GNU_SOURCE
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <stdint.h>
  24 #include <signal.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27 #include <limits.h>
  28 #include <errno.h>
  29 #include <fcntl.h>
  30 #include <sys/stat.h>
  31 #include <sys/wait.h>
  32
  33 #if !defined(NO_CALL_PERSONALITY)
  34 #include <sys/personality.h>
  35 #endif
  36
  37 #include <json-c/json.h>
  38
  39 #include <systemd/sd-daemon.h>
  40
  41 #include "afb-config.h"
  42 #include "afb-hswitch.h"
  43 #include "afb-apiset.h"
  44 #include "afb-autoset.h"
  45 #include "afb-api-so.h"
  46 #if defined(WITH_DBUS_TRANSPARENCY)
  47 #   include "afb-api-dbus.h"
  48 #endif
  49 #include "afb-api-ws.h"
  50 #include "afb-hsrv.h"
  51 #include "afb-hreq.h"
  52 #include "afb-xreq.h"
  53 #include "afb-session.h"
  54 #include "verbose.h"
  55 #include "afb-common.h"
  56 #include "afb-export.h"
  57 #include "afb-monitor.h"
  58 #include "afb-hook.h"
  59 #include "afb-hook-flags.h"
  60 #include "afb-debug.h"
  61 #if defined(WITH_SUPERVISION)
  62 #   include "afb-supervision.h"
  63 #endif
  64
  65 #include "process-name.h"
  66 #include "wrap-json.h"
  67 #include "jobs.h"
  68 #include "sig-monitor.h"
  69
  70 /*
  71    if SELF_PGROUP == 0 the launched command is the group leader
  72    if SELF_PGROUP != 0 afb-daemon is the group leader
  73 */
  74 #define SELF_PGROUP 0
  75
  76 struct afb_apiset *main_apiset;
  77 struct json_object *main_config;
  78
  79 static pid_t childpid;
  80
  81 /**
  82  * Tiny helper around putenv: add the variable name=value
  83  *
  84  * @param name name of the variable to set
  85  * @param value value to set to the variable
  86  *
  87  * @return 0 in case of success or -1 in case of error (with errno set to ENOMEM)
  88  */
  89 static int addenv(const char *name, const char *value)
  90 {
  91         char *head, *middle;
  92
  93         head = malloc(2 + strlen(name) + strlen(value));
  94         if (head == NULL) {
  95                 errno = ENOMEM;
  96                 return -1;
  97         }
  98         middle = stpcpy(head, name);
  99         middle[0] = '=';
 100         strcpy(&middle[1], value);
 101         return putenv(head);
 102 }
 103
 104 /**
 105  * Tiny helper around addenv that export the real path
 106  *
 107  * @param name name of the variable to set
 108  * @param path the path value to export to the variable
 109  *
 110  * @return 0 in case of success or -1 in case of error (with errno set to ENOMEM)
 111  */
 112 static int addenv_realpath(const char *name, const char *path)
 113 {
 114         char buffer[PATH_MAX];
 115         char *p = realpath(path, buffer);
 116         return p ? addenv(name, p) : -1;
 117 }
 118
 119 /*----------------------------------------------------------
 120  |   helpers for handling list of arguments
 121  +--------------------------------------------------------- */
 122
 123 static const char *run_for_config_array_opt(const char *name,
 124                                             int (*run) (void *closure, const char *value),
 125                                             void *closure)
 126 {
 127         int i, n, rc;
 128         struct json_object *array, *value;
 129
 130         if (json_object_object_get_ex(main_config, name, &array)) {
 131                 if (!json_object_is_type(array, json_type_array))
 132                         return json_object_get_string(array);
 133                 n = (int)json_object_array_length(array);
 134                 for (i = 0 ; i < n ; i++) {
 135                         value = json_object_array_get_idx(array, i);
 136                         rc = run(closure, json_object_get_string(value));
 137                         if (!rc)
 138                                 return json_object_get_string(value);
 139                 }
 140         }
 141         return NULL;
 142 }
 143
 144 static int run_start(void *closure, const char *value)
 145 {
 146         int (*starter) (const char *value, struct afb_apiset *declare_set, struct afb_apiset *call_set) = closure;
 147         return starter(value, main_apiset, main_apiset) >= 0;
 148 }
 149
 150 static void apiset_start_list(const char *name,
 151                         int (*starter) (const char *value, struct afb_apiset *declare_set, struct afb_apiset *call_set),
 152                         const char *message)
 153 {
 154         const char *item = run_for_config_array_opt(name, run_start, starter);
 155         if (item) {
 156                 ERROR("can't start %s %s", message, item);
 157                 exit(1);
 158         }
 159 }
 160
 161 /*----------------------------------------------------------
 162  | exit_handler
 163  |   Handles on exit specific actions
 164  +--------------------------------------------------------- */
 165 static void exit_handler()
 166 {
 167         struct sigaction siga;
 168
 169         memset(&siga, 0, sizeof siga);
 170         siga.sa_handler = SIG_IGN;
 171         sigaction(SIGTERM, &siga, NULL);
 172
 173         if (SELF_PGROUP)
 174                 killpg(0, SIGTERM);
 175         else if (childpid > 0)
 176                 killpg(childpid, SIGTERM);
 177 }
 178
 179 static void on_sigterm(int signum, siginfo_t *info, void *uctx)
 180 {
 181         NOTICE("Received SIGTERM");
 182         exit(0);
 183 }
 184
 185 static void on_sighup(int signum, siginfo_t *info, void *uctx)
 186 {
 187         NOTICE("Received SIGHUP");
 188         /* TODO */
 189 }
 190
 191 static void setup_daemon()
 192 {
 193         struct sigaction siga;
 194
 195         /* install signal handlers */
 196         memset(&siga, 0, sizeof siga);
 197         siga.sa_flags = SA_SIGINFO;
 198
 199         siga.sa_sigaction = on_sigterm;
 200         sigaction(SIGTERM, &siga, NULL);
 201
 202         siga.sa_sigaction = on_sighup;
 203         sigaction(SIGHUP, &siga, NULL);
 204
 205         /* handle groups */
 206         atexit(exit_handler);
 207
 208         /* ignore any SIGPIPE */
 209         signal(SIGPIPE, SIG_IGN);
 210 }
 211
 212 /*----------------------------------------------------------
 213  | daemonize
 214  |   set the process in background
 215  +--------------------------------------------------------- */
 216 static void daemonize()
 217 {
 218         int fd = 0, daemon, nostdin;
 219         const char *output;
 220         pid_t pid;
 221
 222         daemon = 0;
 223         output = NULL;
 224         wrap_json_unpack(main_config, "{s?b s?s}", "daemon", &daemon, "output", &output);
 225         nostdin = 0;
 226
 227         if (output) {
 228                 fd = open(output, O_WRONLY | O_APPEND | O_CREAT, 0640);
 229                 if (fd < 0) {
 230                         ERROR("Can't open output %s", output);
 231                         exit(1);
 232                 }
 233         }
 234
 235         if (daemon) {
 236                 INFO("entering background mode");
 237
 238                 pid = fork();
 239                 if (pid == -1) {
 240                         ERROR("Failed to fork daemon process");
 241                         exit(1);
 242                 }
 243                 if (pid != 0)
 244                         _exit(0);
 245
 246                 nostdin = 1;
 247         }
 248
 249         /* closes the input */
 250         if (output) {
 251                 NOTICE("Redirecting output to %s", output);
 252                 close(2);
 253                 dup(fd);
 254                 close(1);
 255                 dup(fd);
 256                 close(fd);
 257         }
 258
 259         if (nostdin)
 260                 close(0); /* except if 'daemon', ctrl+C still works after that */
 261 }
 262
 263 /*---------------------------------------------------------
 264  | http server
 265  |   Handles the HTTP server
 266  +--------------------------------------------------------- */
 267 static int init_alias(void *closure, const char *spec)
 268 {
 269         struct afb_hsrv *hsrv = closure;
 270         char *path = strchr(spec, ':');
 271
 272         if (path == NULL) {
 273                 ERROR("Missing ':' in alias %s. Alias ignored", spec);
 274                 return 1;
 275         }
 276         *path++ = 0;
 277         INFO("Alias for url=%s to path=%s", spec, path);
 278         return afb_hsrv_add_alias(hsrv, spec, afb_common_rootdir_get_fd(), path,
 279                                   0, 0);
 280 }
 281
 282 static int init_http_server(struct afb_hsrv *hsrv)
 283 {
 284         int rc;
 285         const char *rootapi, *roothttp, *rootbase;
 286
 287         roothttp = NULL;
 288         rc = wrap_json_unpack(main_config, "{ss ss s?s}",
 289                                 "rootapi", &rootapi,
 290                                 "rootbase", &rootbase,
 291                                 "roothttp", &roothttp);
 292         if (rc < 0) {
 293                 ERROR("Can't get HTTP server config");
 294                 exit(1);
 295         }
 296
 297         if (!afb_hsrv_add_handler(hsrv, rootapi,
 298                         afb_hswitch_websocket_switch, main_apiset, 20))
 299                 return 0;
 300
 301         if (!afb_hsrv_add_handler(hsrv, rootapi,
 302                         afb_hswitch_apis, main_apiset, 10))
 303                 return 0;
 304
 305         if (run_for_config_array_opt("alias", init_alias, hsrv))
 306                 return 0;
 307
 308         if (roothttp != NULL) {
 309                 if (!afb_hsrv_add_alias(hsrv, "",
 310                         afb_common_rootdir_get_fd(), roothttp, -10, 1))
 311                         return 0;
 312         }
 313
 314         if (!afb_hsrv_add_handler(hsrv, rootbase,
 315                         afb_hswitch_one_page_api_redirect, NULL, -20))
 316                 return 0;
 317
 318         return 1;
 319 }
 320
 321 static struct afb_hsrv *start_http_server()
 322 {
 323         int rc;
 324         const char *uploaddir, *rootdir;
 325         struct afb_hsrv *hsrv;
 326         int cache_timeout, http_port;
 327
 328         rc = wrap_json_unpack(main_config, "{ss ss si si}",
 329                                 "uploaddir", &uploaddir,
 330                                 "rootdir", &rootdir,
 331                                 "cache-eol", &cache_timeout,
 332                                 "port", &http_port);
 333         if (rc < 0) {
 334                 ERROR("Can't get HTTP server start config");
 335                 exit(1);
 336         }
 337
 338         if (afb_hreq_init_download_path(uploaddir)) {
 339                 ERROR("unable to set the upload directory %s", uploaddir);
 340                 return NULL;
 341         }
 342
 343         hsrv = afb_hsrv_create();
 344         if (hsrv == NULL) {
 345                 ERROR("memory allocation failure");
 346                 return NULL;
 347         }
 348
 349         if (!afb_hsrv_set_cache_timeout(hsrv, cache_timeout)
 350             || !init_http_server(hsrv)) {
 351                 ERROR("initialisation of httpd failed");
 352                 afb_hsrv_put(hsrv);
 353                 return NULL;
 354         }
 355
 356         NOTICE("Waiting port=%d rootdir=%s", http_port, rootdir);
 357         NOTICE("Browser URL= http://localhost:%d", http_port);
 358
 359         rc = afb_hsrv_start(hsrv, (uint16_t) http_port, 15);
 360         if (!rc) {
 361                 ERROR("starting of httpd failed");
 362                 afb_hsrv_put(hsrv);
 363                 return NULL;
 364         }
 365
 366         return hsrv;
 367 }
 368
 369 /*---------------------------------------------------------
 370  | execute_command
 371  +--------------------------------------------------------- */
 372
 373 static void on_sigchld(int signum, siginfo_t *info, void *uctx)
 374 {
 375         if (info->si_pid == childpid) {
 376                 switch (info->si_code) {
 377                 case CLD_EXITED:
 378                 case CLD_KILLED:
 379                 case CLD_DUMPED:
 380                         childpid = 0;
 381                         if (!SELF_PGROUP)
 382                                 killpg(info->si_pid, SIGKILL);
 383                         waitpid(info->si_pid, NULL, 0);
 384                         exit(0);
 385                 }
 386         }
 387 }
 388
 389 /*
 390 # @@ @
 391 # @p port
 392 # @t token
 393 */
 394
 395 #define SUBST_CHAR  '@'
 396 #define SUBST_STR   "@"
 397
 398 static char *instanciate_string(const char *arg, const char *port, const char *token)
 399 {
 400         char *resu, *it, *wr;
 401         int chg, dif;
 402
 403         /* get the changes */
 404         chg = 0;
 405         dif = 0;
 406         it = strchrnul(arg, SUBST_CHAR);
 407         while (*it) {
 408                 switch(*++it) {
 409                 case 'p': chg++; dif += (int)strlen(port) - 2; break;
 410                 case 't': chg++; dif += (int)strlen(token) - 2; break;
 411                 case SUBST_CHAR: it++; chg++; dif--; break;
 412                 default: break;
 413                 }
 414                 it = strchrnul(it, SUBST_CHAR);
 415         }
 416
 417         /* return arg when no change */
 418         if (!chg)
 419                 return strdup(arg);
 420
 421         /* allocates the result */
 422         resu = malloc((it - arg) + dif + 1);
 423         if (!resu) {
 424                 ERROR("out of memory");
 425                 return NULL;
 426         }
 427
 428         /* instanciate the arguments */
 429         wr = resu;
 430         for (;;) {
 431                 it = strchrnul(arg, SUBST_CHAR);
 432                 wr = mempcpy(wr, arg, it - arg);
 433                 if (!*it)
 434                         break;
 435                 switch(*++it) {
 436                 case 'p': wr = stpcpy(wr, port); break;
 437                 case 't': wr = stpcpy(wr, token); break;
 438                 default: *wr++ = SUBST_CHAR; /*@fallthrough@*/
 439                 case SUBST_CHAR: *wr++ = *it;
 440                 }
 441                 arg = ++it;
 442         }
 443
 444         *wr = 0;
 445         return resu;
 446 }
 447
 448 static int instanciate_environ(const char *port, const char *token)
 449 {
 450         extern char **environ;
 451         char *repl;
 452         int i;
 453
 454         /* instantiate the environment */
 455         for (i = 0 ; environ[i] ; i++) {
 456                 repl = instanciate_string(environ[i], port, token);
 457                 if (!repl)
 458                         return -1;
 459                 environ[i] = repl;
 460         }
 461         return 0;
 462 }
 463
 464 static char **instanciate_command_args(struct json_object *exec, const char *port, const char *token)
 465 {
 466         char **result;
 467         char *repl;
 468         int i, n;
 469
 470         /* allocates the result */
 471         n = (int)json_object_array_length(exec);
 472         result = malloc((n + 1) * sizeof * result);
 473         if (!result) {
 474                 ERROR("out of memory");
 475                 return NULL;
 476         }
 477
 478         /* instanciate the arguments */
 479         for (i = 0 ; i < n ; i++) {
 480                 repl = instanciate_string(json_object_get_string(json_object_array_get_idx(exec, i)), port, token);
 481                 if (!repl) {
 482                         while(i)
 483                                 free(result[--i]);
 484                         free(result);
 485                         return NULL;
 486                 }
 487                 result[i] = repl;
 488         }
 489         result[i] = NULL;
 490         return result;
 491 }
 492
 493 static int execute_command()
 494 {
 495         struct json_object *exec, *oport;
 496         struct sigaction siga;
 497         char port[20];
 498         const char *token;
 499         char **args;
 500         int rc;
 501
 502         /* check whether a command is to execute or not */
 503         if (!json_object_object_get_ex(main_config, "exec", &exec))
 504                 return 0;
 505
 506         if (SELF_PGROUP)
 507                 setpgid(0, 0);
 508
 509         /* install signal handler */
 510         memset(&siga, 0, sizeof siga);
 511         siga.sa_sigaction = on_sigchld;
 512         siga.sa_flags = SA_SIGINFO;
 513         sigaction(SIGCHLD, &siga, NULL);
 514
 515         /* fork now */
 516         childpid = fork();
 517         if (childpid)
 518                 return 0;
 519
 520         /* compute the string for port */
 521         if (json_object_object_get_ex(main_config, "port", &oport))
 522                 rc = snprintf(port, sizeof port, "%s", json_object_get_string(oport));
 523         else
 524                 rc = snprintf(port, sizeof port, "%cp", SUBST_CHAR);
 525         if (rc < 0 || rc >= (int)(sizeof port)) {
 526                 ERROR("port->txt failed");
 527         }
 528         else {
 529                 /* instanciate arguments and environment */
 530                 token = afb_session_initial_token();
 531                 args = instanciate_command_args(exec, port, token);
 532                 if (args && instanciate_environ(port, token) >= 0) {
 533                         /* run */
 534                         if (!SELF_PGROUP)
 535                                 setpgid(0, 0);
 536                         execv(args[0], args);
 537                         ERROR("can't launch %s: %m", args[0]);
 538                 }
 539         }
 540         exit(1);
 541         return -1;
 542 }
 543
 544 /*---------------------------------------------------------
 545  | startup calls
 546  +--------------------------------------------------------- */
 547
 548 struct startup_req
 549 {
 550         struct afb_xreq xreq;
 551         char *api;
 552         char *verb;
 553         struct json_object *calls;
 554         int index;
 555         int count;
 556         const char *callspec;
 557         struct afb_session *session;
 558 };
 559
 560 static void startup_call_reply(struct afb_xreq *xreq, struct json_object *object, const char *error, const char *info)
 561 {
 562         struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
 563
 564         info = info ?: "";
 565         if (!error) {
 566                 NOTICE("startup call %s returned %s (%s)", sreq->callspec, json_object_get_string(object), info);
 567                 json_object_put(object);
 568         } else {
 569                 ERROR("startup call %s ERROR! %s (%s)", sreq->callspec, error, info);
 570                 exit(1);
 571         }
 572 }
 573
 574 static void startup_call_current(struct startup_req *sreq);
 575
 576 static void startup_call_unref(struct afb_xreq *xreq)
 577 {
 578         struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
 579
 580         free(sreq->api);
 581         free(sreq->verb);
 582         json_object_put(sreq->xreq.json);
 583         if (++sreq->index < sreq->count)
 584                 startup_call_current(sreq);
 585         else {
 586                 afb_session_close(sreq->session);
 587                 afb_session_unref(sreq->session);
 588                 free(sreq);
 589         }
 590 }
 591
 592 static struct afb_xreq_query_itf startup_xreq_itf =
 593 {
 594         .reply = startup_call_reply,
 595         .unref = startup_call_unref
 596 };
 597
 598 static void startup_call_current(struct startup_req *sreq)
 599 {
 600         const char *api, *verb, *json;
 601         enum json_tokener_error jerr;
 602
 603         sreq->callspec = json_object_get_string(json_object_array_get_idx(sreq->calls, sreq->index)),
 604         api = sreq->callspec;
 605         verb = strchr(api, '/');
 606         if (verb) {
 607                 json = strchr(verb, ':');
 608                 if (json) {
 609                         afb_xreq_init(&sreq->xreq, &startup_xreq_itf);
 610                         afb_context_init(&sreq->xreq.context, sreq->session, NULL);
 611                         sreq->xreq.context.validated = 1;
 612                         sreq->api = strndup(api, verb - api);
 613                         sreq->verb = strndup(verb + 1, json - verb - 1);
 614                         sreq->xreq.request.called_api = sreq->api;
 615                         sreq->xreq.request.called_verb = sreq->verb;
 616                         sreq->xreq.json = json_tokener_parse_verbose(json + 1, &jerr);
 617                         if (sreq->api && sreq->verb && jerr == json_tokener_success) {
 618                                 afb_xreq_process(&sreq->xreq, main_apiset);
 619                                 return;
 620                         }
 621                 }
 622         }
 623         ERROR("Bad call specification %s", sreq->callspec);
 624         exit(1);
 625 }
 626
 627 static void run_startup_calls()
 628 {
 629         struct json_object *calls;
 630         struct startup_req *sreq;
 631         int count;
 632
 633         if (json_object_object_get_ex(main_config, "call", &calls)
 634          && json_object_is_type(calls, json_type_array)
 635          && (count = (int)json_object_array_length(calls))) {
 636                 sreq = calloc(1, sizeof *sreq);
 637                 sreq->session = afb_session_create(3600);
 638                 sreq->calls = calls;
 639                 sreq->index = 0;
 640                 sreq->count = count;
 641                 startup_call_current(sreq);
 642         }
 643 }
 644
 645 /*---------------------------------------------------------
 646  | job for starting the daemon
 647  +--------------------------------------------------------- */
 648
 649 static void start(int signum, void *arg)
 650 {
 651         const char *tracereq, *traceapi, *traceevt, *traceses, *tracesvc, *traceditf, *traceglob;
 652         const char *workdir, *rootdir, *token, *rootapi;
 653         struct json_object *settings;
 654         struct afb_hsrv *hsrv;
 655         int max_session_count, session_timeout, api_timeout;
 656         int no_httpd, http_port;
 657         int rc;
 658
 659
 660         afb_debug("start-entry");
 661
 662         if (signum) {
 663                 ERROR("start aborted: received signal %s", strsignal(signum));
 664                 exit(1);
 665         }
 666
 667         settings = NULL;
 668         token = rootapi = tracesvc = traceditf = tracereq =
 669                 traceapi = traceevt = traceses = traceglob = NULL;
 670         no_httpd = http_port = 0;
 671         rc = wrap_json_unpack(main_config, "{"
 672                         "ss ss s?s"
 673                         "si si si"
 674                         "s?b s?i s?s"
 675                         "s?o"
 676 #if !defined(REMOVE_LEGACY_TRACE)
 677                         "s?s s?s"
 678 #endif
 679                         "s?s s?s s?s s?s s?s"
 680                         "}",
 681
 682                         "rootdir", &rootdir,
 683                         "workdir", &workdir,
 684                         "token", &token,
 685
 686                         "apitimeout", &api_timeout,
 687                         "cntxtimeout", &session_timeout,
 688                         "session-max", &max_session_count,
 689
 690                         "no-httpd", &no_httpd,
 691                         "port", &http_port,
 692                         "rootapi", &rootapi,
 693
 694                         "set", &settings,
 695 #if !defined(REMOVE_LEGACY_TRACE)
 696                         "tracesvc", &tracesvc,
 697                         "traceditf", &traceditf,
 698 #endif
 699                         "tracereq", &tracereq,
 700                         "traceapi", &traceapi,
 701                         "traceevt", &traceevt,
 702                         "traceses",  &traceses,
 703                         "traceglob", &traceglob
 704                         );
 705         if (rc < 0) {
 706                 ERROR("Unable to get start config");
 707                 exit(1);
 708         }
 709
 710         /* set the directories */
 711         mkdir(workdir, S_IRWXU | S_IRGRP | S_IXGRP);
 712         if (chdir(workdir) < 0) {
 713                 ERROR("Can't enter working dir %s", workdir);
 714                 goto error;
 715         }
 716         if (afb_common_rootdir_set(rootdir) < 0) {
 717                 ERROR("failed to set common root directory %s", rootdir);
 718                 goto error;
 719         }
 720         if (addenv_realpath("AFB_WORKDIR", "."     /* resolved by realpath */)
 721          || addenv_realpath("AFB_ROOTDIR", rootdir /* relative to current directory */)) {
 722                 ERROR("can't set environment");
 723                 goto error;
 724         }
 725
 726         /* configure the daemon */
 727         afb_export_set_config(settings);
 728         if (afb_session_init(max_session_count, session_timeout, token)) {
 729                 ERROR("initialisation of session manager failed");
 730                 goto error;
 731         }
 732         main_apiset = afb_apiset_create("main", api_timeout);
 733         if (!main_apiset) {
 734                 ERROR("can't create main api set");
 735                 goto error;
 736         }
 737         if (afb_monitor_init(main_apiset, main_apiset) < 0) {
 738                 ERROR("failed to setup monitor");
 739                 goto error;
 740         }
 741 #if defined(WITH_SUPERVISION)
 742         if (afb_supervision_init(main_apiset, main_config) < 0) {
 743                 ERROR("failed to setup supervision");
 744                 goto error;
 745         }
 746 #endif
 747
 748         /* install hooks */
 749         if (tracereq)
 750                 afb_hook_create_xreq(NULL, NULL, NULL, afb_hook_flags_xreq_from_text(tracereq), NULL, NULL);
 751 #if !defined(REMOVE_LEGACY_TRACE)
 752         if (traceapi || tracesvc || traceditf)
 753                 afb_hook_create_api(NULL, afb_hook_flags_api_from_text(traceapi)
 754                         | afb_hook_flags_legacy_ditf_from_text(traceditf)
 755                         | afb_hook_flags_legacy_svc_from_text(tracesvc), NULL, NULL);
 756 #else
 757         if (traceapi)
 758                 afb_hook_create_api(NULL, afb_hook_flags_api_from_text(traceapi), NULL, NULL);
 759 #endif
 760         if (traceevt)
 761                 afb_hook_create_evt(NULL, afb_hook_flags_evt_from_text(traceevt), NULL, NULL);
 762         if (traceses)
 763                 afb_hook_create_session(NULL, afb_hook_flags_session_from_text(traceses), NULL, NULL);
 764         if (traceglob)
 765                 afb_hook_create_global(afb_hook_flags_global_from_text(traceglob), NULL, NULL);
 766
 767         /* load bindings and apis */
 768         afb_debug("start-load");
 769         apiset_start_list("binding", afb_api_so_add_binding, "the binding");
 770         apiset_start_list("ldpaths", afb_api_so_add_pathset_fails, "the binding path set");
 771         apiset_start_list("weak-ldpaths", afb_api_so_add_pathset_nofails, "the weak binding path set");
 772         apiset_start_list("auto-api", afb_autoset_add_any, "the automatic api path set");
 773 #if defined(WITH_DBUS_TRANSPARENCY)
 774         apiset_start_list("dbus-client", afb_api_dbus_add_client, "the afb-dbus client");
 775 #endif
 776         apiset_start_list("ws-client", afb_api_ws_add_client_weak, "the afb-websocket client");
 777
 778         DEBUG("Init config done");
 779
 780         /* start the services */
 781         afb_debug("start-start");
 782 #if !defined(NO_CALL_PERSONALITY)
 783         personality((unsigned long)-1L);
 784 #endif
 785         if (afb_apiset_start_all_services(main_apiset) < 0)
 786                 goto error;
 787
 788         /* export started apis */
 789         apiset_start_list("ws-server", afb_api_ws_add_server, "the afb-websocket service");
 790 #if defined(WITH_DBUS_TRANSPARENCY)
 791         apiset_start_list("dbus-server", afb_api_dbus_add_server, "the afb-dbus service");
 792 #endif
 793
 794         /* start the HTTP server */
 795         afb_debug("start-http");
 796         if (!no_httpd) {
 797                 if (http_port <= 0) {
 798                         ERROR("no port is defined");
 799                         goto error;
 800                 }
 801
 802                 if (!afb_hreq_init_cookie(http_port, rootapi, session_timeout)) {
 803                         ERROR("initialisation of HTTP cookies failed");
 804                         goto error;
 805                 }
 806
 807                 hsrv = start_http_server();
 808                 if (hsrv == NULL)
 809                         goto error;
 810         }
 811
 812         /* run the startup calls */
 813         afb_debug("start-call");
 814         run_startup_calls();
 815
 816         /* run the command */
 817         afb_debug("start-exec");
 818         if (execute_command() < 0)
 819                 goto error;
 820
 821         /* ready */
 822         sd_notify(1, "READY=1");
 823         return;
 824 error:
 825         exit(1);
 826 }
 827
 828 /*---------------------------------------------------------
 829  | main
 830  |   Parse option and launch action
 831  +--------------------------------------------------------- */
 832
 833 int main(int argc, char *argv[])
 834 {
 835         struct json_object *obj;
 836         afb_debug("main-entry");
 837
 838         // ------------- Build session handler & init config -------
 839         main_config = afb_config_parse_arguments(argc, argv);
 840         if (sig_monitor_init(
 841                 !json_object_object_get_ex(main_config, "trap-faults", &obj)
 842                         || json_object_get_boolean(obj)) < 0) {
 843                 ERROR("failed to initialise signal handlers");
 844                 return 1;
 845         }
 846
 847
 848         if (json_object_object_get_ex(main_config, "name", &obj)) {
 849                 verbose_set_name(json_object_get_string(obj), 0);
 850                 process_name_set_name(json_object_get_string(obj));
 851                 process_name_replace_cmdline(argv, json_object_get_string(obj));
 852         }
 853         afb_debug("main-args");
 854
 855         // --------- run -----------
 856         daemonize();
 857         INFO("running with pid %d", getpid());
 858
 859         /* set the daemon environment */
 860         setup_daemon();
 861
 862         afb_debug("main-start");
 863
 864         /* enter job processing */
 865         jobs_start(3, 0, 50, start, NULL);
 866         WARNING("hoops returned from jobs_enter! [report bug]");
 867         return 1;
 868 }
 869