/*
- * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
+ * Copyright (C) 2015-2018 "IoT.bzh"
* Author "Fulup Ar Foll"
* Author José Bollo <jose.bollo@iot.bzh>
*
*/
#define _GNU_SOURCE
-#define NO_BINDING_VERBOSE_MACRO
#include <stdlib.h>
#include <stdio.h>
+#include <stdint.h>
+#include <signal.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/wait.h>
-#include <systemd/sd-event.h>
+#if !defined(NO_CALL_PERSONALITY)
+#include <sys/personality.h>
+#endif
+
+#include <json-c/json.h>
+
+#include <systemd/sd-daemon.h>
#include "afb-config.h"
#include "afb-hswitch.h"
-#include "afb-apis.h"
+#include "afb-apiset.h"
#include "afb-api-so.h"
-#include "afb-api-dbus.h"
+#if defined(WITH_DBUS_TRANSPARENCY)
+# include "afb-api-dbus.h"
+#endif
#include "afb-api-ws.h"
#include "afb-hsrv.h"
-#include "afb-context.h"
#include "afb-hreq.h"
-#include "afb-sig-handler.h"
-#include "afb-thread.h"
+#include "afb-xreq.h"
+#include "jobs.h"
#include "afb-session.h"
#include "verbose.h"
#include "afb-common.h"
+#include "afb-monitor.h"
#include "afb-hook.h"
+#include "afb-debug.h"
+#include "process-name.h"
+#include "afb-supervision.h"
+
+/*
+ if SELF_PGROUP == 0 the launched command is the group leader
+ if SELF_PGROUP != 0 afb-daemon is the group leader
+*/
+#define SELF_PGROUP 1
-#include <afb/afb-binding.h>
+struct afb_apiset *main_apiset;
+struct afb_config *main_config;
-static struct afb_config *config;
static pid_t childpid;
/*----------------------------------------------------------
static int run_start(void *closure, char *value)
{
- int (*starter) (const char *value) = closure;
- return starter(value) >= 0;
+ int (*starter) (const char *value, struct afb_apiset *apiset) = closure;
+ return starter(value, main_apiset) >= 0;
}
-static void start_list(struct afb_config_list *list,
- int (*starter) (const char *value), const char *message)
+static void apiset_start_list(struct afb_config_list *list,
+ int (*starter) (const char *value, struct afb_apiset *apiset), const char *message)
{
list = run_for_list(list, run_start, starter);
if (list) {
+--------------------------------------------------------- */
static void exit_handler()
{
- if (childpid > 0)
- killpg(childpid, SIGKILL);
- /* TODO: check whether using SIGHUP isn't better */
+ struct sigaction siga;
+
+ memset(&siga, 0, sizeof siga);
+ siga.sa_handler = SIG_IGN;
+ sigaction(SIGTERM, &siga, NULL);
+
+ if (SELF_PGROUP)
+ killpg(0, SIGTERM);
+ else if (childpid > 0)
+ killpg(childpid, SIGTERM);
+}
+
+static void on_sigterm(int signum, siginfo_t *info, void *uctx)
+{
+ NOTICE("Received SIGTERM");
+ exit(0);
+}
+
+static void on_sighup(int signum, siginfo_t *info, void *uctx)
+{
+ NOTICE("Received SIGHUP");
+ /* TODO */
+}
+
+static void setup_daemon()
+{
+ struct sigaction siga;
+
+ /* install signal handlers */
+ memset(&siga, 0, sizeof siga);
+ siga.sa_flags = SA_SIGINFO;
+
+ siga.sa_sigaction = on_sigterm;
+ sigaction(SIGTERM, &siga, NULL);
+
+ siga.sa_sigaction = on_sighup;
+ sigaction(SIGHUP, &siga, NULL);
+
+ /* handle groups */
+ atexit(exit_handler);
+
+ /* ignore any SIGPIPE */
+ signal(SIGPIPE, SIG_IGN);
}
/*----------------------------------------------------------
int pid;
// open /dev/console to redirect output messAFBes
- consoleFD = open(config->console, O_WRONLY | O_APPEND | O_CREAT, 0640);
+ consoleFD = open(main_config->console, O_WRONLY | O_APPEND | O_CREAT, 0640);
if (consoleFD < 0) {
ERROR("AFB-daemon cannot open /dev/console (use --foreground)");
exit(1);
// son process get all data in standalone mode
NOTICE("background mode [pid:%d console:%s]", getpid(),
- config->console);
+ main_config->console);
// redirect default I/O on console
close(2);
static int init_http_server(struct afb_hsrv *hsrv)
{
if (!afb_hsrv_add_handler
- (hsrv, config->rootapi, afb_hswitch_websocket_switch, NULL, 20))
+ (hsrv, main_config->rootapi, afb_hswitch_websocket_switch, main_apiset, 20))
return 0;
if (!afb_hsrv_add_handler
- (hsrv, config->rootapi, afb_hswitch_apis, NULL, 10))
+ (hsrv, main_config->rootapi, afb_hswitch_apis, main_apiset, 10))
return 0;
- if (run_for_list(config->aliases, init_alias, hsrv))
+ if (run_for_list(main_config->aliases, init_alias, hsrv))
return 0;
- if (config->roothttp != NULL) {
+ if (main_config->roothttp != NULL) {
if (!afb_hsrv_add_alias
- (hsrv, "", afb_common_rootdir_get_fd(), config->roothttp,
+ (hsrv, "", afb_common_rootdir_get_fd(), main_config->roothttp,
-10, 1))
return 0;
}
if (!afb_hsrv_add_handler
- (hsrv, config->rootbase, afb_hswitch_one_page_api_redirect, NULL,
+ (hsrv, main_config->rootbase, afb_hswitch_one_page_api_redirect, NULL,
-20))
return 0;
int rc;
struct afb_hsrv *hsrv;
- if (afb_hreq_init_download_path("/tmp")) { /* TODO: sessiondir? */
- ERROR("unable to set the tmp directory");
+ if (afb_hreq_init_download_path(main_config->uploaddir)) {
+ ERROR("unable to set the upload directory %s", main_config->uploaddir);
return NULL;
}
return NULL;
}
- if (!afb_hsrv_set_cache_timeout(hsrv, config->cacheTimeout)
+ if (!afb_hsrv_set_cache_timeout(hsrv, main_config->cacheTimeout)
|| !init_http_server(hsrv)) {
ERROR("initialisation of httpd failed");
afb_hsrv_put(hsrv);
return NULL;
}
- NOTICE("Waiting port=%d rootdir=%s", config->httpdPort,
- config->rootdir);
- NOTICE("Browser URL= http:/*localhost:%d", config->httpdPort);
+ NOTICE("Waiting port=%d rootdir=%s", main_config->httpdPort, main_config->rootdir);
+ NOTICE("Browser URL= http://localhost:%d", main_config->httpdPort);
- rc = afb_hsrv_start(hsrv, (uint16_t) config->httpdPort, 15);
+ rc = afb_hsrv_start(hsrv, (uint16_t) main_config->httpdPort, 15);
if (!rc) {
ERROR("starting of httpd failed");
afb_hsrv_put(hsrv);
/*---------------------------------------------------------
| execute_command
- |
+--------------------------------------------------------- */
static void on_sigchld(int signum, siginfo_t *info, void *uctx)
case CLD_KILLED:
case CLD_DUMPED:
childpid = 0;
- killpg(info->si_pid, SIGKILL);
+ if (!SELF_PGROUP)
+ killpg(info->si_pid, SIGKILL);
waitpid(info->si_pid, NULL, 0);
exit(0);
}
#define SUBST_CHAR '@'
#define SUBST_STR "@"
-static int instanciate_command_args()
+static char *instanciate_string(char *arg, const char *port, const char *token)
{
- char *orig, *repl, *sub, *val, port[20];
- int i, rc, r;
- size_t s, l;
-
- rc = snprintf(port, sizeof port, "%d", config->httpdPort);
- if (rc < 0 || rc >= (int)(sizeof port))
- return -1;
-
- for (i = 0 ; (orig = config->exec[i]) ; i++) {
- repl = 0;
- s = 0;
- for(;;) {
- sub = strchrnul(orig, SUBST_CHAR);
- l = sub - orig;
- if (repl)
- repl = mempcpy(repl, orig, l);
- else
- s += l;
- if (!*sub) {
- /* at end */
- if (repl || orig == config->exec[i])
- break;
- repl = malloc(1 + s);
- if (!repl)
- return -1;
- orig = config->exec[i];
- config->exec[i] = repl;
- repl[s] = 0;
- } else {
- r = 2;
- switch(sub[1]) {
- case 'p': val = port; break;
- case 't': val = config->token ? : ""; break;
- default: r = 1;
- case SUBST_CHAR: val = SUBST_STR; break;
- }
- orig = &sub[r];
- l = strlen(val);
- if (repl)
- repl = mempcpy(repl, val, l);
- else
- s += l;
- }
+ char *resu, *it, *wr;
+ int chg, dif;
+
+ /* get the changes */
+ chg = 0;
+ dif = 0;
+ it = strchrnul(arg, SUBST_CHAR);
+ while (*it) {
+ switch(*++it) {
+ case 'p': chg++; dif += (int)strlen(port) - 2; break;
+ case 't': chg++; dif += (int)strlen(token) - 2; break;
+ case SUBST_CHAR: it++; chg++; dif--; break;
+ default: break;
+ }
+ it = strchrnul(it, SUBST_CHAR);
+ }
+
+ /* return arg when no change */
+ if (!chg)
+ return arg;
+
+ /* allocates the result */
+ resu = malloc((it - arg) + dif + 1);
+ if (!resu) {
+ ERROR("out of memory");
+ return NULL;
+ }
+
+ /* instanciate the arguments */
+ wr = resu;
+ for (;;) {
+ it = strchrnul(arg, SUBST_CHAR);
+ wr = mempcpy(wr, arg, it - arg);
+ if (!*it)
+ break;
+ switch(*++it) {
+ case 'p': wr = stpcpy(wr, port); break;
+ case 't': wr = stpcpy(wr, token); break;
+ default: *wr++ = SUBST_CHAR; /*@fallthrough@*/
+ case SUBST_CHAR: *wr++ = *it;
}
+ arg = ++it;
+ }
+
+ *wr = 0;
+ return resu;
+}
+
+static int instanciate_environ(const char *port, const char *token)
+{
+ extern char **environ;
+ char *repl;
+ int i;
+
+ /* instanciate the environment */
+ for (i = 0 ; environ[i] ; i++) {
+ repl = instanciate_string(environ[i], port, token);
+ if (!repl)
+ return -1;
+ environ[i] = repl;
+ }
+ return 0;
+}
+
+static int instanciate_command_args(const char *port, const char *token)
+{
+ char *repl;
+ int i;
+
+ /* instanciate the arguments */
+ for (i = 0 ; main_config->exec[i] ; i++) {
+ repl = instanciate_string(main_config->exec[i], port, token);
+ if (!repl)
+ return -1;
+ main_config->exec[i] = repl;
}
return 0;
}
static int execute_command()
{
struct sigaction siga;
+ char port[20];
+ const char *token;
+ int rc;
/* check whether a command is to execute or not */
- if (!config->exec || !config->exec[0])
+ if (!main_config->exec || !main_config->exec[0])
return 0;
+ if (SELF_PGROUP)
+ setpgid(0, 0);
+
/* install signal handler */
memset(&siga, 0, sizeof siga);
siga.sa_sigaction = on_sigchld;
if (childpid)
return 0;
- /* makes arguments */
- if (instanciate_command_args() >= 0) {
- setpgid(0, 0);
- execv(config->exec[0], config->exec);
- ERROR("can't launch %s: %m", config->exec[0]);
+ /* compute the string for port */
+ if (main_config->httpdPort)
+ rc = snprintf(port, sizeof port, "%d", main_config->httpdPort);
+ else
+ rc = snprintf(port, sizeof port, "%cp", SUBST_CHAR);
+ if (rc < 0 || rc >= (int)(sizeof port)) {
+ ERROR("port->txt failed");
+ }
+ else {
+ /* instanciate arguments and environment */
+ token = afb_session_initial_token();
+ if (instanciate_command_args(port, token) >= 0
+ && instanciate_environ(port, token) >= 0) {
+ /* run */
+ if (!SELF_PGROUP)
+ setpgid(0, 0);
+ execv(main_config->exec[0], main_config->exec);
+ ERROR("can't launch %s: %m", main_config->exec[0]);
+ }
}
exit(1);
return -1;
}
/*---------------------------------------------------------
- | main
- | Parse option and launch action
+ | startup calls
+--------------------------------------------------------- */
-int main(int argc, char *argv[])
+struct startup_req
{
- struct afb_hsrv *hsrv;
- struct sd_event *eventloop;
+ struct afb_xreq xreq;
+ char *api;
+ char *verb;
+ struct afb_config_list *current;
+ struct afb_session *session;
+};
+
+static void startup_call_reply(struct afb_xreq *xreq, int status, struct json_object *obj)
+{
+ struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
- LOGAUTH("afb-daemon");
+ if (status >= 0)
+ NOTICE("startup call %s returned %s", sreq->current->value, json_object_get_string(obj));
+ else {
+ ERROR("startup call %s ERROR! %s", sreq->current->value, json_object_get_string(obj));
+ exit(1);
+ }
+}
- // ------------- Build session handler & init config -------
- config = afb_config_parse_arguments(argc, argv);
- atexit(exit_handler);
+static void startup_call_current(struct startup_req *sreq);
- // ------------------ sanity check ----------------------------------------
- if (config->httpdPort <= 0) {
- ERROR("no port is defined");
- exit(1);
+static void startup_call_unref(struct afb_xreq *xreq)
+{
+ struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
+
+ free(sreq->api);
+ free(sreq->verb);
+ json_object_put(sreq->xreq.json);
+ sreq->current = sreq->current->next;
+ if (sreq->current)
+ startup_call_current(sreq);
+ else {
+ afb_session_close(sreq->session);
+ afb_session_unref(sreq->session);
+ free(sreq);
}
+}
- afb_session_init(config->nbSessionMax, config->cntxTimeout, config->token, afb_apis_count());
+static struct afb_xreq_query_itf startup_xreq_itf =
+{
+ .reply = startup_call_reply,
+ .unref = startup_call_unref
+};
- afb_api_so_set_timeout(config->apiTimeout);
- start_list(config->dbus_clients, afb_api_dbus_add_client, "the afb-dbus client");
- start_list(config->ws_clients, afb_api_ws_add_client, "the afb-websocket client");
- start_list(config->ldpaths, afb_api_so_add_pathset, "the binding path set");
- start_list(config->so_bindings, afb_api_so_add_binding, "the binding");
- start_list(config->dbus_servers, afb_api_dbus_add_server, "the afb-dbus service");
- start_list(config->ws_servers, afb_api_ws_add_server, "the afb-websocket service");
+static void startup_call_current(struct startup_req *sreq)
+{
+ char *api, *verb, *json;
+
+ api = sreq->current->value;
+ verb = strchr(api, '/');
+ if (verb) {
+ json = strchr(verb, ':');
+ if (json) {
+ afb_xreq_init(&sreq->xreq, &startup_xreq_itf);
+ afb_context_init(&sreq->xreq.context, sreq->session, NULL);
+ sreq->xreq.context.validated = 1;
+ sreq->api = strndup(api, verb - api);
+ sreq->verb = strndup(verb + 1, json - verb - 1);
+ sreq->xreq.request.api = sreq->api;
+ sreq->xreq.request.verb = sreq->verb;
+ sreq->xreq.json = json_tokener_parse(json + 1);
+ if (sreq->api && sreq->verb && sreq->xreq.json) {
+ afb_xreq_process(&sreq->xreq, main_apiset);
+ return;
+ }
+ }
+ }
+ ERROR("Bad call specification %s", sreq->current->value);
+ exit(1);
+}
+
+static void run_startup_calls()
+{
+ struct afb_config_list *list;
+ struct startup_req *sreq;
+
+ list = main_config->calls;
+ if (list) {
+ sreq = calloc(1, sizeof *sreq);
+ sreq->session = afb_session_create(3600);
+ sreq->current = list;
+ startup_call_current(sreq);
+ }
+}
+
+/*---------------------------------------------------------
+ | job for starting the daemon
+ +--------------------------------------------------------- */
- if (!afb_hreq_init_cookie(config->httpdPort, config->rootapi, config->cntxTimeout)) {
- ERROR("initialisation of cookies failed");
+static void start(int signum, void *arg)
+{
+ struct afb_hsrv *hsrv;
+
+ afb_debug("start-entry");
+
+ if (signum) {
+ ERROR("start aborted: received signal %s", strsignal(signum));
exit(1);
}
- if (afb_sig_handler_init() < 0) {
- ERROR("failed to initialise signal handlers");
- return 1;
+ /* set the directories */
+ mkdir(main_config->workdir, S_IRWXU | S_IRGRP | S_IXGRP);
+ if (chdir(main_config->workdir) < 0) {
+ ERROR("Can't enter working dir %s", main_config->workdir);
+ goto error;
}
- // if directory does not exist createit
- mkdir(config->rootdir, O_RDWR | S_IRWXU | S_IRGRP);
- if (afb_common_rootdir_set(config->rootdir) < 0) {
+ if (afb_common_rootdir_set(main_config->rootdir) < 0) {
ERROR("failed to set common root directory");
- return 1;
+ goto error;
}
- if (afb_thread_init(3, 1, 20) < 0) {
- ERROR("failed to initialise threading");
- return 1;
+ /* configure the daemon */
+ if (afb_session_init(main_config->nbSessionMax, main_config->cntxTimeout, main_config->token)) {
+ ERROR("initialisation of session manager failed");
+ goto error;
}
- // let's run this program with a low priority
- nice(20);
-
- // ------------------ Finaly Process Commands -----------------------------
- // let's not take the risk to run as ROOT
- //if (getuid() == 0) goto errorNoRoot;
-
- DEBUG("Init config done");
-
- // --------- run -----------
- if (config->background) {
- // --------- in background mode -----------
- INFO("entering background mode");
- daemonize();
- } else {
- // ---- in foreground mode --------------------
- INFO("entering foreground mode");
+ main_apiset = afb_apiset_create("main", main_config->apiTimeout);
+ if (!main_apiset) {
+ ERROR("can't create main api set");
+ goto error;
+ }
+ if (afb_monitor_init() < 0) {
+ ERROR("failed to setup monitor");
+ goto error;
+ }
+ if (afb_supervision_init() < 0) {
+ ERROR("failed to setup supervision");
+ goto error;
}
- /* ignore any SIGPIPE */
- signal(SIGPIPE, SIG_IGN);
+ /* install hooks */
+ if (main_config->tracereq)
+ afb_hook_create_xreq(NULL, NULL, NULL, main_config->tracereq, NULL, NULL);
+ if (main_config->traceditf)
+ afb_hook_create_ditf(NULL, main_config->traceditf, NULL, NULL);
+ if (main_config->tracesvc)
+ afb_hook_create_svc(NULL, main_config->tracesvc, NULL, NULL);
+ if (main_config->traceevt)
+ afb_hook_create_evt(NULL, main_config->traceevt, NULL, NULL);
+ if (main_config->traceses)
+ afb_hook_create_session(NULL, main_config->traceses, NULL, NULL);
+
+ /* load bindings */
+ afb_debug("start-load");
+ apiset_start_list(main_config->so_bindings, afb_api_so_add_binding, "the binding");
+#if defined(WITH_DBUS_TRANSPARENCY)
+ apiset_start_list(main_config->dbus_clients, afb_api_dbus_add_client, "the afb-dbus client");
+#endif
+ apiset_start_list(main_config->ws_clients, afb_api_ws_add_client_weak, "the afb-websocket client");
+ apiset_start_list(main_config->ldpaths, afb_api_so_add_pathset_fails, "the binding path set");
+ apiset_start_list(main_config->weak_ldpaths, afb_api_so_add_pathset_nofails, "the weak binding path set");
- /* install trace of requests */
- if (config->tracereq)
- afb_hook_req_create(NULL, NULL, NULL, config->tracereq, NULL, NULL);
+#if defined(WITH_DBUS_TRANSPARENCY)
+ apiset_start_list(main_config->dbus_servers, afb_api_dbus_add_server, "the afb-dbus service");
+#endif
+ apiset_start_list(main_config->ws_servers, afb_api_ws_add_server, "the afb-websocket service");
+
+ DEBUG("Init config done");
/* start the services */
- if (afb_apis_start_all_services(1) < 0)
- exit(1);
+ afb_debug("start-start");
+#if !defined(NO_CALL_PERSONALITY)
+ personality((unsigned long)-1L);
+#endif
+ if (afb_apiset_start_all_services(main_apiset, 1) < 0)
+ goto error;
/* start the HTTP server */
- if (!config->noHttpd) {
+ afb_debug("start-http");
+ if (!main_config->noHttpd) {
+ if (main_config->httpdPort <= 0) {
+ ERROR("no port is defined");
+ goto error;
+ }
+
+ if (!afb_hreq_init_cookie(main_config->httpdPort, main_config->rootapi, main_config->cntxTimeout)) {
+ ERROR("initialisation of HTTP cookies failed");
+ goto error;
+ }
+
hsrv = start_http_server();
if (hsrv == NULL)
- exit(1);
+ goto error;
}
+ /* run the startup calls */
+ afb_debug("start-call");
+ run_startup_calls();
+
/* run the command */
+ afb_debug("start-exec");
if (execute_command() < 0)
- exit(1);
+ goto error;
+
+ /* ready */
+ sd_notify(1, "READY=1");
+ return;
+error:
+ exit(1);
+}
+
+/*---------------------------------------------------------
+ | main
+ | Parse option and launch action
+ +--------------------------------------------------------- */
+
+int main(int argc, char *argv[])
+{
+ afb_debug("main-entry");
+
+ // let's run this program with a low priority
+ nice(20);
- /* signal that ready */
- if (config->readyfd != 0) {
- static const char readystr[] = "READY=1";
- write(config->readyfd, readystr, sizeof(readystr) - 1);
- close(config->readyfd);
+ // ------------- Build session handler & init config -------
+ main_config = afb_config_parse_arguments(argc, argv);
+ if (main_config->name) {
+ verbose_set_name(main_config->name, 0);
+ process_name_set_name(main_config->name);
+ process_name_replace_cmdline(argv, main_config->name);
+ }
+ afb_debug("main-args");
+
+ // --------- run -----------
+ if (main_config->background) {
+ // --------- in background mode -----------
+ INFO("entering background mode");
+ daemonize();
+ } else {
+ // ---- in foreground mode --------------------
+ INFO("entering foreground mode");
}
+ INFO("running with pid %d", getpid());
- // infinite loop
- eventloop = afb_common_get_event_loop();
- for (;;)
- sd_event_run(eventloop, 30000000);
+ /* set the daemon environment */
+ setup_daemon();
- WARNING("hoops returned from infinite loop [report bug]");
+ afb_debug("main-start");
- return 0;
+ /* enter job processing */
+ jobs_start(3, 0, 50, start, NULL);
+ WARNING("hoops returned from jobs_enter! [report bug]");
+ return 1;
}
+
Code Review / src / app-framework-binder.git / blobdiff