/*
* Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_APACHE_LICENSE_HEADER_START@
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_APACHE_LICENSE_HEADER_END@
*/
-#include <Security/Authorization.h>
-#include <Security/AuthorizationTags.h>
-#include <Security/AuthSession.h>
-#ifdef EVFILT_MACH_IMPLEMENTED
-#include <mach/mach_error.h>
-#include <mach/port.h>
-#endif
+
+static const char *const __rcs_file_version__ = "$Revision: 24863 $";
+
+#include "config.h"
+#include "launchd.h"
+
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/event.h>
#include <sys/resource.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
+#include <sys/kern_event.h>
+#include <sys/reboot.h>
+#include <sys/socket.h>
+#include <sys/syscall.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet6/nd6.h>
+#include <ifaddrs.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
-#include <syslog.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
-#include <pthread.h>
#include <paths.h>
#include <pwd.h>
#include <grp.h>
+#include <ttyent.h>
#include <dlfcn.h>
#include <dirent.h>
+#include <string.h>
+#include <setjmp.h>
+#include <spawn.h>
+#include <sched.h>
+#include <pthread.h>
+#include <util.h>
+#if HAVE_LIBAUDITD
+#include <bsm/auditd_lib.h>
+#include <bsm/audit_session.h>
+#endif
+
+#include "bootstrap.h"
+#include "vproc.h"
+#include "vproc_priv.h"
+#include "vproc_internal.h"
#include "launch.h"
-#include "launch_priv.h"
-#include "launchd.h"
+#include "launch_internal.h"
-#include "bootstrap_internal.h"
+#include "launchd_runtime.h"
+#include "launchd_core_logic.h"
+#include "launchd_unix_ipc.h"
-#define LAUNCHD_MIN_JOB_RUN_TIME 10
-#define LAUNCHD_REWARD_JOB_RUN_TIME 60
-#define LAUNCHD_FAILED_EXITS_THRESHOLD 10
-#define PID1LAUNCHD_CONF "/etc/launchd.conf"
#define LAUNCHD_CONF ".launchd.conf"
-#define LAUNCHCTL_PATH "/bin/launchctl"
-#define SECURITY_LIB "/System/Library/Frameworks/Security.framework/Versions/A/Security"
-#define VOLFSDIR "/.vol"
extern char **environ;
-struct jobcb {
- kq_callback kqjob_callback;
- TAILQ_ENTRY(jobcb) tqe;
- launch_data_t ldj;
- pid_t p;
- int execfd;
- time_t start_time;
- size_t failed_exits;
- int *vnodes;
- size_t vnodes_cnt;
- int *qdirs;
- size_t qdirs_cnt;
- unsigned int start_interval;
- struct tm *start_cal_interval;
- unsigned int checkedin:1, firstborn:1, debug:1, throttle:1, futureflags:28;
- char label[0];
-};
-
-struct conncb {
- kq_callback kqconn_callback;
- TAILQ_ENTRY(conncb) tqe;
- launch_t conn;
- struct jobcb *j;
- int disabled_batch:1, futureflags:31;
-};
-
-static TAILQ_HEAD(jobcbhead, jobcb) jobs = TAILQ_HEAD_INITIALIZER(jobs);
-static TAILQ_HEAD(conncbhead, conncb) connections = TAILQ_HEAD_INITIALIZER(connections);
-static int mainkq = 0;
-static int asynckq = 0;
-static int batch_disabler_count = 0;
-
-static launch_data_t load_job(launch_data_t pload);
-static launch_data_t get_jobs(const char *which);
-static launch_data_t setstdio(int d, launch_data_t o);
-static launch_data_t adjust_rlimits(launch_data_t in);
-static void batch_job_enable(bool e, struct conncb *c);
-static void do_shutdown(void);
-
-static void listen_callback(void *, struct kevent *);
-static void async_callback(void);
-static void signal_callback(void *, struct kevent *);
-static void fs_callback(void);
-static void simple_zombie_reaper(void *, struct kevent *);
-static void readcfg_callback(void *, struct kevent *);
-
-static kq_callback kqlisten_callback = listen_callback;
-static kq_callback kqasync_callback = (kq_callback)async_callback;
-static kq_callback kqsignal_callback = signal_callback;
-static kq_callback kqfs_callback = (kq_callback)fs_callback;
-static kq_callback kqreadcfg_callback = readcfg_callback;
-kq_callback kqsimple_zombie_reaper = simple_zombie_reaper;
-
-static void job_watch(struct jobcb *j);
-static void job_ignore(struct jobcb *j);
-static void job_start(struct jobcb *j);
-static void job_start_child(struct jobcb *j, int execfd);
-static void job_setup_attributes(struct jobcb *j);
-static void job_stop(struct jobcb *j);
-static void job_reap(struct jobcb *j);
-static void job_remove(struct jobcb *j);
-static void job_set_alarm(struct jobcb *j);
-static void job_callback(void *obj, struct kevent *kev);
-static void job_log(struct jobcb *j, int pri, const char *msg, ...) __attribute__((format(printf, 3, 4)));
-static void job_log_error(struct jobcb *j, int pri, const char *msg, ...) __attribute__((format(printf, 3, 4)));
-
-static void ipc_open(int fd, struct jobcb *j);
-static void ipc_close(struct conncb *c);
-static void ipc_callback(void *, struct kevent *);
-static void ipc_readmsg(launch_data_t msg, void *context);
-static void ipc_readmsg2(launch_data_t data, const char *cmd, void *context);
-
-#ifdef PID1_REAP_ADOPTED_CHILDREN
-static void pid1waitpid(void);
-static bool launchd_check_pid(pid_t p);
-#endif
-static void pid1_magic_init(bool sflag, bool vflag, bool xflag);
-static void launchd_server_init(bool create_session);
-static void conceive_firstborn(char *argv[]);
-
-#ifdef EVFILT_MACH_IMPLEMENTED
-static void *mach_demand_loop(void *);
-static void mach_callback(void *, struct kevent *);
-static kq_callback kqmach_callback = mach_callback;
-#endif
+static void pfsystem_callback(void *, struct kevent *);
-static void usage(FILE *where);
-static int _fd(int fd);
+static kq_callback kqpfsystem_callback = pfsystem_callback;
+
+static void pid1_magic_init(void);
-static void loopback_setup(void);
-static void workaround3048875(int argc, char *argv[]);
-static void reload_launchd_config(void);
-static int dir_has_files(const char *path);
static void testfd_or_openfd(int fd, const char *path, int flags);
-static void setup_job_env(launch_data_t obj, const char *key, void *context);
-static void unsetup_job_env(launch_data_t obj, const char *key, void *context);
-
-
-static size_t total_children = 0;
-static pid_t readcfg_pid = 0;
-static pid_t launchd_proper_pid = 0;
-static bool launchd_inited = false;
-static bool shutdown_in_progress = false;
-static pthread_t mach_server_loop_thread;
-mach_port_t launchd_bootstrap_port = MACH_PORT_NULL;
-sigset_t blocked_signals = 0;
-static char *pending_stdout = NULL;
-static char *pending_stderr = NULL;
-
-int main(int argc, char *argv[])
-{
- static const int sigigns[] = { SIGHUP, SIGINT, SIGPIPE, SIGALRM,
- SIGTERM, SIGURG, SIGTSTP, SIGTSTP, SIGCONT, /*SIGCHLD,*/
- SIGTTIN, SIGTTOU, SIGIO, SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF,
- SIGWINCH, SIGINFO, SIGUSR1, SIGUSR2 };
- struct kevent kev;
- size_t i;
- bool sflag = false, xflag = false, vflag = false, dflag = false;
+static bool get_network_state(void);
+static void monitor_networking_state(void);
+static void fatal_signal_handler(int sig, siginfo_t *si, void *uap);
+static void handle_pid1_crashes_separately(void);
+static void do_pid1_crash_diagnosis_mode(const char *msg);
+static int basic_fork(void);
+static bool do_pid1_crash_diagnosis_mode2(const char *msg);
+
+static void *update_thread(void *nothing);
+
+static bool re_exec_in_single_user_mode;
+static void *crash_addr;
+static pid_t crash_pid;
+
+bool shutdown_in_progress;
+bool fake_shutdown_in_progress;
+bool network_up;
+char g_username[128] = "__Uninitialized__";
+char g_my_label[128] = "__Uninitialized__";
+char g_launchd_database_dir[PATH_MAX];
+FILE *g_console = NULL;
+int32_t g_sync_frequency = 30;
+
+int
+main(int argc, char *const *argv)
+{
+ bool sflag = false;
int ch;
- if (getpid() == 1)
- workaround3048875(argc, argv);
-
- setegid(getgid());
- seteuid(getuid());
-
testfd_or_openfd(STDIN_FILENO, _PATH_DEVNULL, O_RDONLY);
testfd_or_openfd(STDOUT_FILENO, _PATH_DEVNULL, O_WRONLY);
testfd_or_openfd(STDERR_FILENO, _PATH_DEVNULL, O_WRONLY);
- openlog(getprogname(), LOG_CONS|(getpid() != 1 ? LOG_PID|LOG_PERROR : 0), LOG_LAUNCHD);
- setlogmask(LOG_UPTO(LOG_NOTICE));
-
- while ((ch = getopt(argc, argv, "dhsvx")) != -1) {
+ if (g_use_gmalloc) {
+ if (!getenv("DYLD_INSERT_LIBRARIES")) {
+ setenv("DYLD_INSERT_LIBRARIES", "/usr/lib/libgmalloc.dylib", 1);
+ setenv("MALLOC_STRICT_SIZE", "1", 1);
+ execv(argv[0], argv);
+ } else {
+ unsetenv("DYLD_INSERT_LIBRARIES");
+ unsetenv("MALLOC_STRICT_SIZE");
+ }
+ } else if (g_malloc_log_stacks) {
+ if (!getenv("MallocStackLogging")) {
+ setenv("MallocStackLogging", "1", 1);
+ execv(argv[0], argv);
+ } else {
+ unsetenv("MallocStackLogging");
+ }
+ }
+
+ while ((ch = getopt(argc, argv, "s")) != -1) {
switch (ch) {
- case 'd': dflag = true; break;
- case 's': sflag = true; break;
- case 'x': xflag = true; break;
- case 'v': vflag = true; break;
- case 'h': usage(stdout); break;
+ case 's': sflag = true; break; /* single user */
+ case '?': /* we should do something with the global optopt variable here */
default:
- syslog(LOG_WARNING, "ignoring unknown arguments");
- usage(stderr);
+ fprintf(stderr, "%s: ignoring unknown arguments\n", getprogname());
break;
}
}
- argc -= optind;
- argv += optind;
-
- if (dflag && daemon(0, 0) == -1)
- syslog(LOG_WARNING, "couldn't daemonize: %m");
-
- if ((mainkq = kqueue()) == -1) {
- syslog(LOG_EMERG, "kqueue(): %m");
- abort();
- }
- if ((asynckq = kqueue()) == -1) {
- syslog(LOG_ERR, "kqueue(): %m");
- abort();
- }
-
- if (kevent_mod(asynckq, EVFILT_READ, EV_ADD, 0, 0, &kqasync_callback) == -1) {
- syslog(LOG_ERR, "kevent_mod(asynckq, EVFILT_READ): %m");
- abort();
+ if (getpid() != 1 && getppid() != 1) {
+ fprintf(stderr, "%s: This program is not meant to be run directly.\n", getprogname());
+ exit(EXIT_FAILURE);
}
- sigemptyset(&blocked_signals);
+ launchd_runtime_init();
- for (i = 0; i < (sizeof(sigigns) / sizeof(int)); i++) {
- if (kevent_mod(sigigns[i], EVFILT_SIGNAL, EV_ADD, 0, 0, &kqsignal_callback) == -1)
- syslog(LOG_ERR, "failed to add kevent for signal: %d: %m", sigigns[i]);
- sigaddset(&blocked_signals, sigigns[i]);
- signal(sigigns[i], SIG_IGN);
+ if (pid1_magic) {
+ int cfd = -1;
+ if (launchd_assumes((cfd = open(_PATH_CONSOLE, O_WRONLY | O_NOCTTY)) != -1)) {
+ _fd(cfd);
+ if (!launchd_assumes((g_console = fdopen(cfd, "w")) != NULL)) {
+ close(cfd);
+ }
+ }
}
- /* sigh... ignoring SIGCHLD has side effects: we can't call wait*() */
- if (kevent_mod(SIGCHLD, EVFILT_SIGNAL, EV_ADD, 0, 0, &kqsignal_callback) == -1)
- syslog(LOG_ERR, "failed to add kevent for signal: %d: %m", SIGCHLD);
-
- if (getpid() == 1) {
- pid1_magic_init(sflag, vflag, xflag);
- } else {
- launchd_bootstrap_port = bootstrap_port;
- launchd_server_init(argv[0] ? true : false);
+ if (NULL == getenv("PATH")) {
+ setenv("PATH", _PATH_STDPATH, 1);
}
- /* do this after pid1_magic_init() to not catch ourselves mounting stuff */
- if (kevent_mod(0, EVFILT_FS, EV_ADD, 0, 0, &kqfs_callback) == -1)
- syslog(LOG_ERR, "kevent_mod(EVFILT_FS, &kqfs_callback): %m");
-
-
- if (argv[0])
- conceive_firstborn(argv);
-
- reload_launchd_config();
-
- if (argv[0])
- job_start(TAILQ_FIRST(&jobs));
-
- for (;;) {
- static struct timespec timeout = { 30, 0 };
- struct timespec *timeoutp = NULL;
-
- if (getpid() == 1) {
- if (readcfg_pid == 0)
- init_pre_kevent();
- } else {
- if (TAILQ_EMPTY(&jobs)) {
- /* launched on demand */
- timeoutp = &timeout;
- } else if (shutdown_in_progress && total_children == 0) {
- exit(EXIT_SUCCESS);
- }
+ if (pid1_magic) {
+ pid1_magic_init();
+ } else {
+ ipc_server_init();
+
+ runtime_log_push();
+
+ struct passwd *pwent = getpwuid(getuid());
+ if (pwent) {
+ strlcpy(g_username, pwent->pw_name, sizeof(g_username) - 1);
}
- switch (kevent(mainkq, NULL, 0, &kev, 1, timeoutp)) {
- case -1:
- syslog(LOG_DEBUG, "kevent(): %m");
- break;
- case 1:
- (*((kq_callback *)kev.udata))(kev.udata, &kev);
- break;
- case 0:
- if (timeoutp)
- exit(EXIT_SUCCESS);
- else
- syslog(LOG_DEBUG, "kevent(): spurious return with infinite timeout");
- break;
- default:
- syslog(LOG_DEBUG, "unexpected: kevent() returned something != 0, -1 or 1");
- break;
+ snprintf(g_my_label, sizeof(g_my_label), "com.apple.launchd.peruser.%u", getuid());
+
+ auditinfo_addr_t auinfo;
+ if (launchd_assumes(getaudit_addr(&auinfo, sizeof(auinfo)) != -1)) {
+ g_audit_session = auinfo.ai_asid;
+ runtime_syslog(LOG_DEBUG, "Our audit session ID is %i", g_audit_session);
}
+
+ g_audit_session_port = _audit_session_self();
+ snprintf(g_launchd_database_dir, sizeof(g_launchd_database_dir), LAUNCHD_DB_PREFIX "/com.apple.launchd.peruser.%u", getuid());
+ runtime_syslog(LOG_DEBUG, "Per-user launchd for UID %u (%s) has begun.", getuid(), g_username);
}
-}
-static void pid1_magic_init(bool sflag, bool vflag, bool xflag)
-{
- pthread_attr_t attr;
- int memmib[2] = { CTL_HW, HW_PHYSMEM };
- int mvnmib[2] = { CTL_KERN, KERN_MAXVNODES };
- int hnmib[2] = { CTL_KERN, KERN_HOSTNAME };
- int tfp_r_mib[3] = { CTL_KERN, KERN_TFP, KERN_TFP_READ_GROUP };
- int tfp_rw_mib[3] = { CTL_KERN, KERN_TFP, KERN_TFP_RW_GROUP };
- gid_t tfp_r_gid = 0;
- gid_t tfp_rw_gid = 0;
- struct group *tfp_gr;
- uint64_t mem = 0;
- uint32_t mvn;
- size_t memsz = sizeof(mem);
- int pthr_r;
-
- if ((tfp_gr = getgrnam("procview"))) {
- tfp_r_gid = tfp_gr->gr_gid;
- sysctl(tfp_r_mib, 3, NULL, NULL, &tfp_r_gid, sizeof(tfp_r_gid));
- }
+ if (pid1_magic) {
+ runtime_syslog(LOG_NOTICE | LOG_CONSOLE, "*** launchd[1] has started up. ***");
+ if (g_use_gmalloc) {
+ runtime_syslog(LOG_NOTICE | LOG_CONSOLE, "*** Using libgmalloc. ***");
+ }
+ if (g_malloc_log_stacks) {
+ runtime_syslog(LOG_NOTICE | LOG_CONSOLE, "*** Logging stacks of malloc(3) allocations. ***");
+ }
- if ((tfp_gr = getgrnam("procmod"))) {
- tfp_rw_gid = tfp_gr->gr_gid;
- sysctl(tfp_rw_mib, 3, NULL, NULL, &tfp_rw_gid, sizeof(tfp_rw_gid));
- }
+ if (g_verbose_boot) {
+ runtime_syslog(LOG_NOTICE | LOG_CONSOLE, "*** Verbose boot, will log to /dev/console. ***");
+ }
- setpriority(PRIO_PROCESS, 0, -1);
+ if (g_shutdown_debugging) {
+ runtime_syslog(LOG_NOTICE | LOG_CONSOLE, "*** Shutdown debugging is enabled. ***");
+ }
- if (setsid() == -1)
- syslog(LOG_ERR, "setsid(): %m");
+ /* PID 1 doesn't have a flat namespace. */
+ g_flat_mach_namespace = false;
+ } else {
+ if (g_use_gmalloc) {
+ runtime_syslog(LOG_NOTICE, "*** Per-user launchd using libgmalloc. ***");
+ }
+ }
- if (chdir("/") == -1)
- syslog(LOG_ERR, "chdir(\"/\"): %m");
+ monitor_networking_state();
- if (sysctl(memmib, 2, &mem, &memsz, NULL, 0) == -1) {
- syslog(LOG_WARNING, "sysctl(\"%s\"): %m", "hw.physmem");
+ if (pid1_magic) {
+ handle_pid1_crashes_separately();
} else {
- /* The following assignment of mem to itself if the size
- * of data returned is 32 bits instead of 64 is a clever
- * C trick to move the 32 bits on big endian systems to
- * the least significant bytes of the 64 mem variable.
- *
- * On little endian systems, this is effectively a no-op.
- */
- if (memsz == 4)
- mem = *(uint32_t *)&mem;
- mvn = mem / (64 * 1024) + 1024;
- if (sysctl(mvnmib, 2, NULL, NULL, &mvn, sizeof(mvn)) == -1)
- syslog(LOG_WARNING, "sysctl(\"%s\"): %m", "kern.maxvnodes");
+ #if !TARGET_OS_EMBEDDED
+ /* prime shared memory before the 'bootstrap_port' global is set to zero */
+ _vproc_transaction_begin();
+ _vproc_transaction_end();
+ #endif
}
- if (sysctl(hnmib, 2, NULL, NULL, "localhost", sizeof("localhost")) == -1)
- syslog(LOG_WARNING, "sysctl(\"%s\"): %m", "kern.hostname");
- if (setlogin("root") == -1)
- syslog(LOG_ERR, "setlogin(\"root\"): %m");
+ if (pid1_magic) {
+ /* Start the update thread -- rdar://problem/5039559&6153301 */
+ pthread_t t = NULL;
+ int err = pthread_create(&t, NULL, update_thread, NULL);
+ (void)launchd_assumes(err == 0);
+ (void)launchd_assumes(pthread_detach(t) == 0);
+ }
- loopback_setup();
+ jobmgr_init(sflag);
+
+ launchd_runtime_init2();
- if (mount("fdesc", "/dev", MNT_UNION, NULL) == -1)
- syslog(LOG_ERR, "mount(\"%s\", \"%s\", ...): %m", "fdesc", "/dev/");
+ launchd_runtime();
+}
- setenv("PATH", _PATH_STDPATH, 1);
+void
+handle_pid1_crashes_separately(void)
+{
+ struct sigaction fsa;
- launchd_bootstrap_port = mach_init_init();
- task_set_bootstrap_port(mach_task_self(), launchd_bootstrap_port);
- bootstrap_port = MACH_PORT_NULL;
+ fsa.sa_sigaction = fatal_signal_handler;
+ fsa.sa_flags = SA_SIGINFO;
+ sigemptyset(&fsa.sa_mask);
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ (void)launchd_assumes(sigaction(SIGILL, &fsa, NULL) != -1);
+ (void)launchd_assumes(sigaction(SIGFPE, &fsa, NULL) != -1);
+ (void)launchd_assumes(sigaction(SIGBUS, &fsa, NULL) != -1);
+ (void)launchd_assumes(sigaction(SIGSEGV, &fsa, NULL) != -1);
+ (void)launchd_assumes(sigaction(SIGABRT, &fsa, NULL) != -1);
+ (void)launchd_assumes(sigaction(SIGTRAP, &fsa, NULL) != -1);
+}
- pthr_r = pthread_create(&mach_server_loop_thread, &attr, mach_server_loop, NULL);
- if (pthr_r != 0) {
- syslog(LOG_ERR, "pthread_create(mach_server_loop): %s", strerror(pthr_r));
- exit(EXIT_FAILURE);
+void *update_thread(void *nothing __attribute__((unused)))
+{
+ /* <rdar://problem/7385963> use IOPOL_PASSIVE for sync thread */
+ (void)launchd_assumes(setiopolicy_np(IOPOL_TYPE_DISK, IOPOL_SCOPE_THREAD, IOPOL_PASSIVE) != -1);
+
+ while( g_sync_frequency ) {
+ sync();
+ sleep(g_sync_frequency);
}
-
- pthread_attr_destroy(&attr);
-
- init_boot(sflag, vflag, xflag);
+
+ runtime_syslog(LOG_DEBUG, "Update thread exiting.");
+ return NULL;
}
+#define PID1_CRASH_LOGFILE "/var/log/launchd-pid1.crash"
-#ifdef PID1_REAP_ADOPTED_CHILDREN
-static bool launchd_check_pid(pid_t p)
-{
- struct kevent kev;
- struct jobcb *j;
+/* This hack forces the dynamic linker to resolve these symbols ASAP */
+static __attribute__((unused)) typeof(sync) *__junk_dyld_trick1 = sync;
+static __attribute__((unused)) typeof(sleep) *__junk_dyld_trick2 = sleep;
+static __attribute__((unused)) typeof(reboot) *__junk_dyld_trick3 = reboot;
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (j->p == p) {
- EV_SET(&kev, p, EVFILT_PROC, 0, 0, 0, j);
- j->kqjob_callback(j, &kev);
- return true;
- }
+void
+do_pid1_crash_diagnosis_mode(const char *msg)
+{
+ if (g_wsp) {
+ kill(g_wsp, SIGKILL);
+ sleep(3);
+ g_wsp = 0;
}
- if (p == readcfg_pid) {
- readcfg_callback(NULL, NULL);
- return true;
+ while (g_shutdown_debugging && !do_pid1_crash_diagnosis_mode2(msg)) {
+ sleep(1);
}
-
- return false;
}
-#endif
-static char *sockdir = NULL;
-static char *sockpath = NULL;
-
-static void launchd_clean_up(void)
+int
+basic_fork(void)
{
- if (launchd_proper_pid != getpid())
- return;
-
- seteuid(0);
- setegid(0);
+ int wstatus = 0;
+ pid_t p;
+
+ switch ((p = fork())) {
+ case -1:
+ runtime_syslog(LOG_ERR | LOG_CONSOLE, "Can't fork PID 1 copy for crash debugging: %m");
+ return p;
+ case 0:
+ return p;
+ default:
+ do {
+ (void)waitpid(p, &wstatus, 0);
+ } while(!WIFEXITED(wstatus));
- if (-1 == unlink(sockpath))
- syslog(LOG_WARNING, "unlink(\"%s\"): %m", sockpath);
- else if (-1 == rmdir(sockdir))
- syslog(LOG_WARNING, "rmdir(\"%s\"): %m", sockdir);
+ fprintf(stdout, "PID 1 copy: exit status: %d\n", WEXITSTATUS(wstatus));
- setegid(getgid());
- seteuid(getuid());
+ return 1;
+ }
+
+ return -1;
}
-static void launchd_server_init(bool create_session)
+bool
+do_pid1_crash_diagnosis_mode2(const char *msg)
{
- struct sockaddr_un sun;
- mode_t oldmask;
- int r, fd = -1, ourdirfd = -1;
- char ourdir[1024];
-
- memset(&sun, 0, sizeof(sun));
- sun.sun_family = AF_UNIX;
-
- if (create_session) {
- snprintf(ourdir, sizeof(ourdir), "%s/%u.%u", LAUNCHD_SOCK_PREFIX, getuid(), getpid());
- snprintf(sun.sun_path, sizeof(sun.sun_path), "%s/%u.%u/sock", LAUNCHD_SOCK_PREFIX, getuid(), getpid());
- setenv(LAUNCHD_SOCKET_ENV, sun.sun_path, 1);
- } else {
- snprintf(ourdir, sizeof(ourdir), "%s/%u", LAUNCHD_SOCK_PREFIX, getuid());
- snprintf(sun.sun_path, sizeof(sun.sun_path), "%s/%u/sock", LAUNCHD_SOCK_PREFIX, getuid());
- }
-
- seteuid(0);
- setegid(0);
-
- if (mkdir(LAUNCHD_SOCK_PREFIX, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) == -1) {
- if (errno == EROFS) {
- goto out_bad;
- } else if (errno == EEXIST) {
- struct stat sb;
- stat(LAUNCHD_SOCK_PREFIX, &sb);
- if (!S_ISDIR(sb.st_mode)) {
- errno = EEXIST;
- syslog(LOG_ERR, "mkdir(\"%s\"): %m", LAUNCHD_SOCK_PREFIX);
- goto out_bad;
- }
- } else {
- syslog(LOG_ERR, "mkdir(\"%s\"): %m", LAUNCHD_SOCK_PREFIX);
- goto out_bad;
+ if (basic_fork() == 0) {
+ /* Neuter our bootstrap port so that the shell doesn't try talking to us while
+ * we're blocked waiting on it.
+ */
+ if (g_console) {
+ fflush(g_console);
}
- }
-
- unlink(ourdir);
- if (mkdir(ourdir, S_IRWXU) == -1) {
- if (errno == EROFS) {
- goto out_bad;
- } else if (errno == EEXIST) {
- struct stat sb;
- stat(ourdir, &sb);
- if (!S_ISDIR(sb.st_mode)) {
- errno = EEXIST;
- syslog(LOG_ERR, "mkdir(\"%s\"): %m", LAUNCHD_SOCK_PREFIX);
- goto out_bad;
+ task_set_bootstrap_port(mach_task_self(), MACH_PORT_NULL);
+ if (basic_fork() != 0) {
+ if (g_console) {
+ fflush(g_console);
}
- } else {
- syslog(LOG_ERR, "mkdir(\"%s\"): %m", ourdir);
- goto out_bad;
+ return true;
}
+ } else {
+ return true;
}
+
+ int fd;
+ revoke(_PATH_CONSOLE);
+ if ((fd = open(_PATH_CONSOLE, O_RDWR)) == -1) {
+ _exit(2);
+ }
+ if (login_tty(fd) == -1) {
+ _exit(3);
+ }
+ setenv("TERM", "vt100", 1);
+ fprintf(stdout, "\n");
+ fprintf(stdout, "Entering launchd PID 1 debugging mode...\n");
+ fprintf(stdout, "The PID 1 launchd has crashed %s.\n", msg);
+ fprintf(stdout, "It has fork(2)ed itself for debugging.\n");
+ fprintf(stdout, "To debug the crashing thread of PID 1:\n");
+ fprintf(stdout, " gdb attach %d\n", getppid());
+ fprintf(stdout, "To exit this shell and shut down:\n");
+ fprintf(stdout, " kill -9 1\n");
+ fprintf(stdout, "A sample of PID 1 has been written to %s\n", PID1_CRASH_LOGFILE);
+ fprintf(stdout, "\n");
+ fflush(stdout);
+
+ execl(_PATH_BSHELL, "-sh", NULL);
+ syslog(LOG_ERR, "can't exec %s for PID 1 crash debugging: %m", _PATH_BSHELL);
+ _exit(EXIT_FAILURE);
+}
- if (chown(ourdir, getuid(), getgid()) == -1)
- syslog(LOG_WARNING, "chown(\"%s\"): %m", ourdir);
-
- setegid(getgid());
- seteuid(getuid());
-
- ourdirfd = _fd(open(ourdir, O_RDONLY));
- if (ourdirfd == -1) {
- syslog(LOG_ERR, "open(\"%s\"): %m", ourdir);
- goto out_bad;
- }
+void
+fatal_signal_handler(int sig, siginfo_t *si, void *uap __attribute__((unused)))
+{
+ const char *doom_why = "at instruction";
+ char msg[128];
+ char *sample_args[] = { "/usr/bin/sample", "1", "1", "-file", PID1_CRASH_LOGFILE, NULL };
+ pid_t sample_p;
+ int wstatus;
- if (flock(ourdirfd, LOCK_EX|LOCK_NB) == -1) {
- if (errno == EWOULDBLOCK) {
- exit(EXIT_SUCCESS);
- } else {
- syslog(LOG_ERR, "flock(\"%s\"): %m", ourdir);
- goto out_bad;
- }
- }
+ crash_addr = si->si_addr;
+ crash_pid = si->si_pid;
+
+ unlink(PID1_CRASH_LOGFILE);
- if (unlink(sun.sun_path) == -1 && errno != ENOENT) {
- if (errno != EROFS)
- syslog(LOG_ERR, "unlink(\"thesocket\"): %m");
- goto out_bad;
- }
- if ((fd = _fd(socket(AF_UNIX, SOCK_STREAM, 0))) == -1) {
- syslog(LOG_ERR, "socket(\"thesocket\"): %m");
- goto out_bad;
- }
- oldmask = umask(077);
- r = bind(fd, (struct sockaddr *)&sun, sizeof(sun));
- umask(oldmask);
- if (r == -1) {
- if (errno != EROFS)
- syslog(LOG_ERR, "bind(\"thesocket\"): %m");
- goto out_bad;
+ switch ((sample_p = vfork())) {
+ case 0:
+ execve(sample_args[0], sample_args, environ);
+ _exit(EXIT_FAILURE);
+ break;
+ default:
+ waitpid(sample_p, &wstatus, 0);
+ break;
+ case -1:
+ break;
}
- if (listen(fd, SOMAXCONN) == -1) {
- syslog(LOG_ERR, "listen(\"thesocket\"): %m");
- goto out_bad;
+ switch (sig) {
+ default:
+ case 0:
+ break;
+ case SIGBUS:
+ case SIGSEGV:
+ doom_why = "trying to read/write";
+ case SIGILL:
+ case SIGFPE:
+ snprintf(msg, sizeof(msg), "%s: %p (%s sent by PID %u)", doom_why, crash_addr, strsignal(sig), crash_pid);
+ sync();
+ do_pid1_crash_diagnosis_mode(msg);
+ sleep(3);
+ reboot(0);
+ break;
}
+}
- if (kevent_mod(fd, EVFILT_READ, EV_ADD, 0, 0, &kqlisten_callback) == -1) {
- syslog(LOG_ERR, "kevent_mod(\"thesocket\", EVFILT_READ): %m");
- goto out_bad;
+void
+pid1_magic_init(void)
+{
+ (void)launchd_assumes(setsid() != -1);
+ (void)launchd_assumes(chdir("/") != -1);
+ (void)launchd_assumes(setlogin("root") != -1);
+
+ strcpy(g_my_label, "com.apple.launchd");
+
+#if !TARGET_OS_EMBEDDED
+ auditinfo_addr_t auinfo = {
+ .ai_termid = { .at_type = AU_IPv4 },
+ .ai_asid = AU_ASSIGN_ASID,
+ .ai_auid = AU_DEFAUDITID,
+ .ai_flags = AU_SESSION_FLAG_IS_INITIAL,
+ };
+
+ if (!launchd_assumes(setaudit_addr(&auinfo, sizeof(auinfo)) != -1)) {
+ runtime_syslog(LOG_WARNING | LOG_CONSOLE, "Could not set audit session: %s.", strerror(errno));
+ _exit(EXIT_FAILURE);
}
- launchd_inited = true;
-
- sockdir = strdup(ourdir);
- sockpath = strdup(sun.sun_path);
+ g_audit_session = auinfo.ai_asid;
+ runtime_syslog(LOG_DEBUG, "Audit Session ID: %i", g_audit_session);
- launchd_proper_pid = getpid();
- atexit(launchd_clean_up);
-
-out_bad:
- setegid(getgid());
- seteuid(getuid());
-
- if (!launchd_inited) {
- if (fd != -1)
- close(fd);
- if (ourdirfd != -1)
- close(ourdirfd);
- }
+ g_audit_session_port = _audit_session_self();
+#endif
+
+ strcpy(g_launchd_database_dir, LAUNCHD_DB_PREFIX "/com.apple.launchd");
}
-static long long job_get_integer(launch_data_t j, const char *key)
+char *
+launchd_data_base_path(int db_type)
{
- launch_data_t t = launch_data_dict_lookup(j, key);
- if (t)
- return launch_data_get_integer(t);
- else
- return 0;
+ static char result[PATH_MAX];
+ static int last_db_type = -1;
+
+ if (db_type == last_db_type) {
+ return result;
+ }
+
+ switch (db_type) {
+ case LAUNCHD_DB_TYPE_OVERRIDES :
+ snprintf(result, sizeof(result), "%s/%s", g_launchd_database_dir, "overrides.plist");
+ last_db_type = db_type;
+ break;
+ case LAUNCHD_DB_TYPE_JOBCACHE :
+ snprintf(result, sizeof(result), "%s/%s", g_launchd_database_dir, "jobcache.launchdata");
+ last_db_type = db_type;
+ break;
+ default :
+ break;
+ }
+
+ return result;
}
-static const char *job_get_string(launch_data_t j, const char *key)
+int
+_fd(int fd)
{
- launch_data_t t = launch_data_dict_lookup(j, key);
- if (t)
- return launch_data_get_string(t);
- else
- return NULL;
+ if (fd >= 0) {
+ (void)launchd_assumes(fcntl(fd, F_SETFD, 1) != -1);
+ }
+ return fd;
}
-static const char *job_get_file2exec(launch_data_t j)
+void
+launchd_shutdown(void)
{
- launch_data_t tmpi, tmp = launch_data_dict_lookup(j, LAUNCH_JOBKEY_PROGRAM);
+ int64_t now;
- if (tmp) {
- return launch_data_get_string(tmp);
- } else {
- tmp = launch_data_dict_lookup(j, LAUNCH_JOBKEY_PROGRAMARGUMENTS);
- if (tmp) {
- tmpi = launch_data_array_get_index(tmp, 0);
- if (tmpi)
- return launch_data_get_string(tmpi);
- }
- return NULL;
+ if (shutdown_in_progress) {
+ return;
}
-}
-
-static bool job_get_bool(launch_data_t j, const char *key)
-{
- launch_data_t t = launch_data_dict_lookup(j, key);
- if (t)
- return launch_data_get_bool(t);
- else
- return false;
-}
-static void ipc_open(int fd, struct jobcb *j)
-{
- struct conncb *c = calloc(1, sizeof(struct conncb));
+ runtime_ktrace0(RTKT_LAUNCHD_EXITING);
- fcntl(fd, F_SETFL, O_NONBLOCK);
+ shutdown_in_progress = true;
- c->kqconn_callback = ipc_callback;
- c->conn = launchd_fdopen(fd);
- c->j = j;
- TAILQ_INSERT_TAIL(&connections, c, tqe);
- kevent_mod(fd, EVFILT_READ, EV_ADD, 0, 0, &c->kqconn_callback);
-}
+ if (pid1_magic || g_log_per_user_shutdown) {
+ /*
+ * When this changes to a more sustainable API, update this:
+ * http://howto.apple.com/db.cgi?Debugging_Apps_Non-Responsive_At_Shutdown
+ */
+ runtime_setlogmask(LOG_UPTO(LOG_DEBUG));
+ }
-static void simple_zombie_reaper(void *obj __attribute__((unused)), struct kevent *kev)
-{
- waitpid(kev->ident, NULL, 0);
-}
+ runtime_log_push();
-static void listen_callback(void *obj __attribute__((unused)), struct kevent *kev)
-{
- struct sockaddr_un sun;
- socklen_t sl = sizeof(sun);
- int cfd;
+ now = runtime_get_wall_time();
- if ((cfd = _fd(accept(kev->ident, (struct sockaddr *)&sun, &sl))) == -1) {
- return;
- }
+ char *term_who = pid1_magic ? "System shutdown" : "Per-user launchd termination for ";
+ runtime_syslog(LOG_INFO, "%s%s began", term_who, pid1_magic ? "" : g_username);
- ipc_open(cfd, NULL);
-}
+ launchd_assert(jobmgr_shutdown(root_jobmgr) != NULL);
-static void ipc_callback(void *obj, struct kevent *kev)
-{
- struct conncb *c = obj;
- int r;
-
- if (kev->filter == EVFILT_READ) {
- if (launchd_msg_recv(c->conn, ipc_readmsg, c) == -1 && errno != EAGAIN) {
- if (errno != ECONNRESET)
- syslog(LOG_DEBUG, "%s(): recv: %m", __func__);
- ipc_close(c);
- }
- } else if (kev->filter == EVFILT_WRITE) {
- r = launchd_msg_send(c->conn, NULL);
- if (r == -1) {
- if (errno != EAGAIN) {
- syslog(LOG_DEBUG, "%s(): send: %m", __func__);
- ipc_close(c);
- }
- } else if (r == 0) {
- kevent_mod(launchd_getfd(c->conn), EVFILT_WRITE, EV_DELETE, 0, 0, NULL);
- }
- } else {
- syslog(LOG_DEBUG, "%s(): unknown filter type!", __func__);
- ipc_close(c);
+#if HAVE_LIBAUDITD
+ if (pid1_magic) {
+ (void)launchd_assumes(audit_quick_stop() == 0);
}
+#endif
}
-static void set_user_env(launch_data_t obj, const char *key, void *context __attribute__((unused)))
+void
+launchd_single_user(void)
{
- setenv(key, launch_data_get_string(obj), 1);
-}
+ runtime_syslog(LOG_NOTICE, "Going to single-user mode");
-static void launch_data_close_fds(launch_data_t o)
-{
- size_t i;
+ re_exec_in_single_user_mode = true;
- switch (launch_data_get_type(o)) {
- case LAUNCH_DATA_DICTIONARY:
- launch_data_dict_iterate(o, (void (*)(launch_data_t, const char *, void *))launch_data_close_fds, NULL);
- break;
- case LAUNCH_DATA_ARRAY:
- for (i = 0; i < launch_data_array_get_count(o); i++)
- launch_data_close_fds(launch_data_array_get_index(o, i));
- break;
- case LAUNCH_DATA_FD:
- if (launch_data_get_fd(o) != -1)
- close(launch_data_get_fd(o));
- break;
- default:
- break;
- }
+ launchd_shutdown();
+
+ sleep(3);
+
+ runtime_kill(-1, SIGKILL);
}
-static void launch_data_revoke_fds(launch_data_t o)
+void
+launchd_SessionCreate(void)
{
- size_t i;
-
- switch (launch_data_get_type(o)) {
- case LAUNCH_DATA_DICTIONARY:
- launch_data_dict_iterate(o, (void (*)(launch_data_t, const char *, void *))launch_data_revoke_fds, NULL);
- break;
- case LAUNCH_DATA_ARRAY:
- for (i = 0; i < launch_data_array_get_count(o); i++)
- launch_data_revoke_fds(launch_data_array_get_index(o, i));
- break;
- case LAUNCH_DATA_FD:
- launch_data_set_fd(o, -1);
- break;
- default:
- break;
+#if !TARGET_OS_EMBEDDED
+ auditinfo_addr_t auinfo = {
+ .ai_termid = { .at_type = AU_IPv4 },
+ .ai_asid = AU_ASSIGN_ASID,
+ .ai_auid = getuid(),
+ .ai_flags = 0,
+ };
+ if (launchd_assumes(setaudit_addr(&auinfo, sizeof(auinfo)) == 0)) {
+ char session[16];
+ snprintf(session, sizeof(session), "%x", auinfo.ai_asid);
+ setenv("SECURITYSESSIONID", session, 1);
+ } else {
+ runtime_syslog(LOG_WARNING, "Could not set audit session: %s.", strerror(errno));
}
+#endif
}
-static void job_ignore_fds(launch_data_t o, const char *key __attribute__((unused)), void *cookie)
+void
+testfd_or_openfd(int fd, const char *path, int flags)
{
- struct jobcb *j = cookie;
- size_t i;
- int fd;
+ int tmpfd;
- switch (launch_data_get_type(o)) {
- case LAUNCH_DATA_DICTIONARY:
- launch_data_dict_iterate(o, job_ignore_fds, cookie);
- break;
- case LAUNCH_DATA_ARRAY:
- for (i = 0; i < launch_data_array_get_count(o); i++)
- job_ignore_fds(launch_data_array_get_index(o, i), NULL, cookie);
- break;
- case LAUNCH_DATA_FD:
- fd = launch_data_get_fd(o);
- if (-1 != fd) {
- job_log(j, LOG_DEBUG, "Ignoring FD: %d", fd);
- kevent_mod(fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
+ if (-1 != (tmpfd = dup(fd))) {
+ (void)launchd_assumes(runtime_close(tmpfd) == 0);
+ } else {
+ if (-1 == (tmpfd = open(path, flags | O_NOCTTY, DEFFILEMODE))) {
+ runtime_syslog(LOG_ERR, "open(\"%s\", ...): %m", path);
+ } else if (tmpfd != fd) {
+ (void)launchd_assumes(dup2(tmpfd, fd) != -1);
+ (void)launchd_assumes(runtime_close(tmpfd) == 0);
}
- break;
- default:
- break;
}
}
-static void job_ignore(struct jobcb *j)
+bool
+get_network_state(void)
{
- launch_data_t j_sockets = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_SOCKETS);
- size_t i;
-
- if (j_sockets)
- job_ignore_fds(j_sockets, NULL, j);
+ struct ifaddrs *ifa, *ifai;
+ bool up = false;
+ int r;
- for (i = 0; i < j->vnodes_cnt; i++) {
- kevent_mod(j->vnodes[i], EVFILT_VNODE, EV_DELETE, 0, 0, NULL);
- }
- for (i = 0; i < j->qdirs_cnt; i++) {
- kevent_mod(j->qdirs[i], EVFILT_VNODE, EV_DELETE, 0, 0, NULL);
+ /* Workaround 4978696: getifaddrs() reports false ENOMEM */
+ while ((r = getifaddrs(&ifa)) == -1 && errno == ENOMEM) {
+ runtime_syslog(LOG_DEBUG, "Worked around bug: 4978696");
+ (void)launchd_assumes(sched_yield() != -1);
}
-}
-static void job_watch_fds(launch_data_t o, const char *key __attribute__((unused)), void *cookie)
-{
- struct jobcb *j = cookie;
- size_t i;
- int fd;
+ if (!launchd_assumes(r != -1)) {
+ return network_up;
+ }
- switch (launch_data_get_type(o)) {
- case LAUNCH_DATA_DICTIONARY:
- launch_data_dict_iterate(o, job_watch_fds, cookie);
- break;
- case LAUNCH_DATA_ARRAY:
- for (i = 0; i < launch_data_array_get_count(o); i++)
- job_watch_fds(launch_data_array_get_index(o, i), NULL, cookie);
- break;
- case LAUNCH_DATA_FD:
- fd = launch_data_get_fd(o);
- if (-1 != fd) {
- job_log(j, LOG_DEBUG, "Watching FD: %d", fd);
- kevent_mod(fd, EVFILT_READ, EV_ADD, 0, 0, cookie);
+ for (ifai = ifa; ifai; ifai = ifai->ifa_next) {
+ if (!(ifai->ifa_flags & IFF_UP)) {
+ continue;
}
- break;
- default:
+ if (ifai->ifa_flags & IFF_LOOPBACK) {
+ continue;
+ }
+ if (ifai->ifa_addr->sa_family != AF_INET && ifai->ifa_addr->sa_family != AF_INET6) {
+ continue;
+ }
+ up = true;
break;
}
-}
-static void job_watch(struct jobcb *j)
-{
- launch_data_t ld_qdirs = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_QUEUEDIRECTORIES);
- launch_data_t ld_vnodes = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_WATCHPATHS);
- launch_data_t j_sockets = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_SOCKETS);
- size_t i;
+ freeifaddrs(ifa);
- if (j_sockets)
- job_watch_fds(j_sockets, NULL, &j->kqjob_callback);
+ return up;
+}
- for (i = 0; i < j->vnodes_cnt; i++) {
- if (-1 == j->vnodes[i]) {
- launch_data_t ld_idx = launch_data_array_get_index(ld_vnodes, i);
- const char *thepath = launch_data_get_string(ld_idx);
+void
+monitor_networking_state(void)
+{
+ int pfs = _fd(socket(PF_SYSTEM, SOCK_RAW, SYSPROTO_EVENT));
+ struct kev_request kev_req;
- if (-1 == (j->vnodes[i] = _fd(open(thepath, O_EVTONLY))))
- job_log_error(j, LOG_ERR, "open(\"%s\", O_EVTONLY)", thepath);
- }
- kevent_mod(j->vnodes[i], EVFILT_VNODE, EV_ADD|EV_CLEAR,
- NOTE_WRITE|NOTE_EXTEND|NOTE_DELETE|NOTE_RENAME|NOTE_REVOKE|NOTE_ATTRIB|NOTE_LINK,
- 0, &j->kqjob_callback);
- }
+ network_up = get_network_state();
- for (i = 0; i < j->qdirs_cnt; i++) {
- kevent_mod(j->qdirs[i], EVFILT_VNODE, EV_ADD|EV_CLEAR,
- NOTE_WRITE|NOTE_EXTEND|NOTE_ATTRIB|NOTE_LINK, 0, &j->kqjob_callback);
+ if (!launchd_assumes(pfs != -1)) {
+ return;
}
- for (i = 0; i < j->qdirs_cnt; i++) {
- launch_data_t ld_idx = launch_data_array_get_index(ld_qdirs, i);
- const char *thepath = launch_data_get_string(ld_idx);
- int dcc_r;
+ memset(&kev_req, 0, sizeof(kev_req));
+ kev_req.vendor_code = KEV_VENDOR_APPLE;
+ kev_req.kev_class = KEV_NETWORK_CLASS;
- if (-1 == (dcc_r = dir_has_files(thepath))) {
- job_log_error(j, LOG_ERR, "dir_has_files(\"%s\", ...)", thepath);
- } else if (dcc_r > 0 && !shutdown_in_progress) {
- job_start(j);
- break;
- }
+ if (!launchd_assumes(ioctl(pfs, SIOCSKEVFILT, &kev_req) != -1)) {
+ runtime_close(pfs);
+ return;
}
-}
-static void job_stop(struct jobcb *j)
-{
- if (j->p)
- kill(j->p, SIGTERM);
+ (void)launchd_assumes(kevent_mod(pfs, EVFILT_READ, EV_ADD, 0, 0, &kqpfsystem_callback) != -1);
}
-static void job_remove(struct jobcb *j)
+void
+pfsystem_callback(void *obj __attribute__((unused)), struct kevent *kev)
{
- launch_data_t tmp;
- size_t i;
+ bool new_networking_state;
+ char buf[1024];
- job_log(j, LOG_DEBUG, "Removed");
+ (void)launchd_assumes(read((int)kev->ident, &buf, sizeof(buf)) != -1);
- TAILQ_REMOVE(&jobs, j, tqe);
- if (j->p) {
- if (kevent_mod(j->p, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, &kqsimple_zombie_reaper) == -1) {
- job_reap(j);
- } else {
- job_stop(j);
- }
- }
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_USERENVIRONMENTVARIABLES)))
- launch_data_dict_iterate(tmp, unsetup_job_env, NULL);
- launch_data_close_fds(j->ldj);
- launch_data_free(j->ldj);
- if (j->execfd)
- close(j->execfd);
- for (i = 0; i < j->vnodes_cnt; i++)
- if (-1 != j->vnodes[i])
- close(j->vnodes[i]);
- if (j->vnodes)
- free(j->vnodes);
- for (i = 0; i < j->qdirs_cnt; i++)
- if (-1 != j->qdirs[i])
- close(j->qdirs[i]);
- if (j->qdirs)
- free(j->qdirs);
- if (j->start_interval)
- kevent_mod((uintptr_t)&j->start_interval, EVFILT_TIMER, EV_DELETE, 0, 0, NULL);
- if (j->start_cal_interval) {
- kevent_mod((uintptr_t)j->start_cal_interval, EVFILT_TIMER, EV_DELETE, 0, 0, NULL);
- free(j->start_cal_interval);
+ new_networking_state = get_network_state();
+
+ if (new_networking_state != network_up) {
+ network_up = new_networking_state;
+ jobmgr_dispatch_all_semaphores(root_jobmgr);
}
- kevent_mod((uintptr_t)j, EVFILT_TIMER, EV_DELETE, 0, 0, NULL);
- free(j);
}
-struct readmsg_context {
- struct conncb *c;
- launch_data_t resp;
-};
-
-static void ipc_readmsg(launch_data_t msg, void *context)
+void
+_log_launchd_bug(const char *rcs_rev, const char *path, unsigned int line, const char *test)
{
- struct readmsg_context rmc = { context, NULL };
+ int saved_errno = errno;
+ char buf[100];
+ const char *file = strrchr(path, '/');
+ char *rcs_rev_tmp = strchr(rcs_rev, ' ');
- if (LAUNCH_DATA_DICTIONARY == launch_data_get_type(msg)) {
- launch_data_dict_iterate(msg, ipc_readmsg2, &rmc);
- } else if (LAUNCH_DATA_STRING == launch_data_get_type(msg)) {
- ipc_readmsg2(NULL, launch_data_get_string(msg), &rmc);
+ runtime_ktrace1(RTKT_LAUNCHD_BUG);
+
+ if (!file) {
+ file = path;
} else {
- rmc.resp = launch_data_new_errno(EINVAL);
+ file += 1;
}
- if (NULL == rmc.resp)
- rmc.resp = launch_data_new_errno(ENOSYS);
-
- launch_data_close_fds(msg);
-
- if (launchd_msg_send(rmc.c->conn, rmc.resp) == -1) {
- if (errno == EAGAIN) {
- kevent_mod(launchd_getfd(rmc.c->conn), EVFILT_WRITE, EV_ADD, 0, 0, &rmc.c->kqconn_callback);
- } else {
- syslog(LOG_DEBUG, "launchd_msg_send() == -1: %m");
- ipc_close(rmc.c);
+ if (!rcs_rev_tmp) {
+ strlcpy(buf, rcs_rev, sizeof(buf));
+ } else {
+ strlcpy(buf, rcs_rev_tmp + 1, sizeof(buf));
+ rcs_rev_tmp = strchr(buf, ' ');
+ if (rcs_rev_tmp) {
+ *rcs_rev_tmp = '\0';
}
}
- launch_data_free(rmc.resp);
-}
-
-
-static void ipc_readmsg2(launch_data_t data, const char *cmd, void *context)
-{
- struct readmsg_context *rmc = context;
- launch_data_t resp = NULL;
- struct jobcb *j;
-
- if (rmc->resp)
- return;
- if (!strcmp(cmd, LAUNCH_KEY_STARTJOB)) {
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (!strcmp(j->label, launch_data_get_string(data))) {
- job_start(j);
- resp = launch_data_new_errno(0);
- }
- }
- if (NULL == resp)
- resp = launch_data_new_errno(ESRCH);
- } else if (!strcmp(cmd, LAUNCH_KEY_STOPJOB)) {
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (!strcmp(j->label, launch_data_get_string(data))) {
- job_stop(j);
- resp = launch_data_new_errno(0);
- }
- }
- if (NULL == resp)
- resp = launch_data_new_errno(ESRCH);
- } else if (!strcmp(cmd, LAUNCH_KEY_REMOVEJOB)) {
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (!strcmp(j->label, launch_data_get_string(data))) {
- job_remove(j);
- resp = launch_data_new_errno(0);
- }
- }
- if (NULL == resp)
- resp = launch_data_new_errno(ESRCH);
- } else if (!strcmp(cmd, LAUNCH_KEY_SUBMITJOB)) {
- if (launch_data_get_type(data) == LAUNCH_DATA_ARRAY) {
- launch_data_t tmp;
- size_t i;
-
- resp = launch_data_alloc(LAUNCH_DATA_ARRAY);
- for (i = 0; i < launch_data_array_get_count(data); i++) {
- tmp = load_job(launch_data_array_get_index(data, i));
- launch_data_array_set_index(resp, tmp, i);
- }
- } else {
- resp = load_job(data);
- }
- } else if (!strcmp(cmd, LAUNCH_KEY_UNSETUSERENVIRONMENT)) {
- unsetenv(launch_data_get_string(data));
- resp = launch_data_new_errno(0);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETUSERENVIRONMENT)) {
- char **tmpenviron = environ;
- resp = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
- for (; *tmpenviron; tmpenviron++) {
- char envkey[1024];
- launch_data_t s = launch_data_alloc(LAUNCH_DATA_STRING);
- launch_data_set_string(s, strchr(*tmpenviron, '=') + 1);
- strncpy(envkey, *tmpenviron, sizeof(envkey));
- *(strchr(envkey, '=')) = '\0';
- launch_data_dict_insert(resp, s, envkey);
- }
- } else if (!strcmp(cmd, LAUNCH_KEY_SETUSERENVIRONMENT)) {
- launch_data_dict_iterate(data, set_user_env, NULL);
- resp = launch_data_new_errno(0);
- } else if (!strcmp(cmd, LAUNCH_KEY_CHECKIN)) {
- if (rmc->c->j) {
- resp = launch_data_copy(rmc->c->j->ldj);
- if (NULL == launch_data_dict_lookup(resp, LAUNCH_JOBKEY_TIMEOUT)) {
- launch_data_t to = launch_data_new_integer(LAUNCHD_MIN_JOB_RUN_TIME);
- launch_data_dict_insert(resp, to, LAUNCH_JOBKEY_TIMEOUT);
- }
- rmc->c->j->checkedin = true;
- } else {
- resp = launch_data_new_errno(EACCES);
- }
- } else if (!strcmp(cmd, LAUNCH_KEY_RELOADTTYS)) {
- update_ttys();
- resp = launch_data_new_errno(0);
- } else if (!strcmp(cmd, LAUNCH_KEY_SHUTDOWN)) {
- do_shutdown();
- resp = launch_data_new_errno(0);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETJOBS)) {
- resp = get_jobs(NULL);
- launch_data_revoke_fds(resp);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETRESOURCELIMITS)) {
- resp = adjust_rlimits(NULL);
- } else if (!strcmp(cmd, LAUNCH_KEY_SETRESOURCELIMITS)) {
- resp = adjust_rlimits(data);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETJOB)) {
- resp = get_jobs(launch_data_get_string(data));
- launch_data_revoke_fds(resp);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETJOBWITHHANDLES)) {
- resp = get_jobs(launch_data_get_string(data));
- } else if (!strcmp(cmd, LAUNCH_KEY_SETLOGMASK)) {
- resp = launch_data_new_integer(setlogmask(launch_data_get_integer(data)));
- } else if (!strcmp(cmd, LAUNCH_KEY_GETLOGMASK)) {
- int oldmask = setlogmask(LOG_UPTO(LOG_DEBUG));
- resp = launch_data_new_integer(oldmask);
- setlogmask(oldmask);
- } else if (!strcmp(cmd, LAUNCH_KEY_SETUMASK)) {
- resp = launch_data_new_integer(umask(launch_data_get_integer(data)));
- } else if (!strcmp(cmd, LAUNCH_KEY_GETUMASK)) {
- mode_t oldmask = umask(0);
- resp = launch_data_new_integer(oldmask);
- umask(oldmask);
- } else if (!strcmp(cmd, LAUNCH_KEY_GETRUSAGESELF)) {
- struct rusage rusage;
- getrusage(RUSAGE_SELF, &rusage);
- resp = launch_data_new_opaque(&rusage, sizeof(rusage));
- } else if (!strcmp(cmd, LAUNCH_KEY_GETRUSAGECHILDREN)) {
- struct rusage rusage;
- getrusage(RUSAGE_CHILDREN, &rusage);
- resp = launch_data_new_opaque(&rusage, sizeof(rusage));
- } else if (!strcmp(cmd, LAUNCH_KEY_SETSTDOUT)) {
- resp = setstdio(STDOUT_FILENO, data);
- } else if (!strcmp(cmd, LAUNCH_KEY_SETSTDERR)) {
- resp = setstdio(STDERR_FILENO, data);
- } else if (!strcmp(cmd, LAUNCH_KEY_BATCHCONTROL)) {
- batch_job_enable(launch_data_get_bool(data), rmc->c);
- resp = launch_data_new_errno(0);
- } else if (!strcmp(cmd, LAUNCH_KEY_BATCHQUERY)) {
- resp = launch_data_alloc(LAUNCH_DATA_BOOL);
- launch_data_set_bool(resp, batch_disabler_count == 0);
- }
-
- rmc->resp = resp;
-}
-
-static launch_data_t setstdio(int d, launch_data_t o)
-{
- launch_data_t resp = launch_data_new_errno(0);
-
- if (launch_data_get_type(o) == LAUNCH_DATA_STRING) {
- char **where = &pending_stderr;
- if (d == STDOUT_FILENO)
- where = &pending_stdout;
- if (*where)
- free(*where);
- *where = strdup(launch_data_get_string(o));
- } else if (launch_data_get_type(o) == LAUNCH_DATA_FD) {
- dup2(launch_data_get_fd(o), d);
- } else {
- launch_data_set_errno(resp, EINVAL);
- }
-
- return resp;
-}
-
-static void batch_job_enable(bool e, struct conncb *c)
-{
- if (e && c->disabled_batch) {
- batch_disabler_count--;
- c->disabled_batch = 0;
- if (batch_disabler_count == 0)
- kevent_mod(asynckq, EVFILT_READ, EV_ENABLE, 0, 0, &kqasync_callback);
- } else if (!e && !c->disabled_batch) {
- if (batch_disabler_count == 0)
- kevent_mod(asynckq, EVFILT_READ, EV_DISABLE, 0, 0, &kqasync_callback);
- batch_disabler_count++;
- c->disabled_batch = 1;
- }
-}
-
-static launch_data_t load_job(launch_data_t pload)
-{
- launch_data_t tmp, resp;
- const char *label;
- struct jobcb *j;
- bool startnow, hasprog = false, hasprogargs = false;
-
- if ((label = job_get_string(pload, LAUNCH_JOBKEY_LABEL))) {
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (!strcmp(j->label, label)) {
- resp = launch_data_new_errno(EEXIST);
- goto out;
- }
- }
- } else {
- resp = launch_data_new_errno(EINVAL);
- goto out;
- }
-
- if (launch_data_dict_lookup(pload, LAUNCH_JOBKEY_PROGRAM))
- hasprog = true;
- if (launch_data_dict_lookup(pload, LAUNCH_JOBKEY_PROGRAMARGUMENTS))
- hasprogargs = true;
-
- if (!hasprog && !hasprogargs) {
- resp = launch_data_new_errno(EINVAL);
- goto out;
- }
-
- j = calloc(1, sizeof(struct jobcb) + strlen(label) + 1);
- strcpy(j->label, label);
- j->ldj = launch_data_copy(pload);
- launch_data_revoke_fds(pload);
- j->kqjob_callback = job_callback;
-
-
- if (launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_ONDEMAND) == NULL) {
- tmp = launch_data_alloc(LAUNCH_DATA_BOOL);
- launch_data_set_bool(tmp, true);
- launch_data_dict_insert(j->ldj, tmp, LAUNCH_JOBKEY_ONDEMAND);
- }
-
- TAILQ_INSERT_TAIL(&jobs, j, tqe);
-
- j->debug = job_get_bool(j->ldj, LAUNCH_JOBKEY_DEBUG);
-
- startnow = !job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND);
-
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_RUNATLOAD))
- startnow = true;
-
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_QUEUEDIRECTORIES))) {
- size_t i;
-
- j->qdirs_cnt = launch_data_array_get_count(tmp);
- j->qdirs = malloc(sizeof(int) * j->qdirs_cnt);
-
- for (i = 0; i < j->qdirs_cnt; i++) {
- const char *thepath = launch_data_get_string(launch_data_array_get_index(tmp, i));
-
- if (-1 == (j->qdirs[i] = _fd(open(thepath, O_EVTONLY))))
- job_log_error(j, LOG_ERR, "open(\"%s\", O_EVTONLY)", thepath);
- }
-
- }
-
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_STARTINTERVAL))) {
- j->start_interval = launch_data_get_integer(tmp);
-
- if (j->start_interval == 0)
- job_log(j, LOG_WARNING, "StartInterval is zero, ignoring");
- else if (-1 == kevent_mod((uintptr_t)&j->start_interval, EVFILT_TIMER, EV_ADD, NOTE_SECONDS, j->start_interval, &j->kqjob_callback))
- job_log_error(j, LOG_ERR, "adding kevent timer");
- }
-
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_STARTCALENDARINTERVAL))) {
- launch_data_t tmp_k;
-
- j->start_cal_interval = calloc(1, sizeof(struct tm));
- j->start_cal_interval->tm_min = -1;
- j->start_cal_interval->tm_hour = -1;
- j->start_cal_interval->tm_mday = -1;
- j->start_cal_interval->tm_wday = -1;
- j->start_cal_interval->tm_mon = -1;
-
- if (LAUNCH_DATA_DICTIONARY == launch_data_get_type(tmp)) {
- if ((tmp_k = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_CAL_MINUTE)))
- j->start_cal_interval->tm_min = launch_data_get_integer(tmp_k);
- if ((tmp_k = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_CAL_HOUR)))
- j->start_cal_interval->tm_hour = launch_data_get_integer(tmp_k);
- if ((tmp_k = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_CAL_DAY)))
- j->start_cal_interval->tm_mday = launch_data_get_integer(tmp_k);
- if ((tmp_k = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_CAL_WEEKDAY)))
- j->start_cal_interval->tm_wday = launch_data_get_integer(tmp_k);
- if ((tmp_k = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_CAL_MONTH)))
- j->start_cal_interval->tm_mon = launch_data_get_integer(tmp_k);
- }
-
- job_set_alarm(j);
- }
-
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_WATCHPATHS))) {
- size_t i;
-
- j->vnodes_cnt = launch_data_array_get_count(tmp);
- j->vnodes = malloc(sizeof(int) * j->vnodes_cnt);
-
- for (i = 0; i < j->vnodes_cnt; i++) {
- const char *thepath = launch_data_get_string(launch_data_array_get_index(tmp, i));
-
- if (-1 == (j->vnodes[i] = _fd(open(thepath, O_EVTONLY))))
- job_log_error(j, LOG_ERR, "open(\"%s\", O_EVTONLY)", thepath);
- }
-
- }
-
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_USERENVIRONMENTVARIABLES)))
- launch_data_dict_iterate(tmp, setup_job_env, NULL);
-
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND))
- job_watch(j);
-
- if (startnow)
- job_start(j);
-
- resp = launch_data_new_errno(0);
-out:
- return resp;
-}
-
-static launch_data_t get_jobs(const char *which)
-{
- struct jobcb *j;
- launch_data_t tmp, resp = NULL;
-
- if (which) {
- TAILQ_FOREACH(j, &jobs, tqe) {
- if (!strcmp(which, j->label))
- resp = launch_data_copy(j->ldj);
- }
- if (resp == NULL)
- resp = launch_data_new_errno(ESRCH);
- } else {
- resp = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
-
- TAILQ_FOREACH(j, &jobs, tqe) {
- tmp = launch_data_copy(j->ldj);
- launch_data_dict_insert(resp, tmp, j->label);
- }
- }
-
- return resp;
-}
-
-static void usage(FILE *where)
-{
- fprintf(where, "%s: [-d] [-- command [args ...]]\n", getprogname());
- fprintf(where, "\t-d\tdaemonize\n");
- fprintf(where, "\t-h\tthis usage statement\n");
-
- if (where == stdout)
- exit(EXIT_SUCCESS);
-}
-
-#ifdef EVFILT_MACH_IMPLEMENTED
-static void **machcbtable = NULL;
-static size_t machcbtable_cnt = 0;
-static int machcbreadfd = -1;
-static int machcbwritefd = -1;
-static mach_port_t mach_demand_port_set = MACH_PORT_NULL;
-static pthread_t mach_demand_thread;
-
-static void mach_callback(void *obj __attribute__((unused)), struct kevent *kev __attribute__((unused)))
-{
- struct kevent mkev;
- mach_port_t mp;
-
- read(machcbreadfd, &mp, sizeof(mp));
-
- EV_SET(&mkev, mp, EVFILT_MACHPORT, 0, 0, 0, machcbtable[MACH_PORT_INDEX(mp)]);
-
- (*((kq_callback *)mkev.udata))(mkev.udata, &mkev);
-}
-#endif
-
-int kevent_mod(uintptr_t ident, short filter, u_short flags, u_int fflags, intptr_t data, void *udata)
-{
- struct kevent kev;
- int q = mainkq;
-#ifdef EVFILT_MACH_IMPLEMENTED
- kern_return_t kr;
- pthread_attr_t attr;
- int pthr_r, pfds[2];
-#endif
-
- if (EVFILT_TIMER == filter || EVFILT_VNODE == filter)
- q = asynckq;
-
- if (flags & EV_ADD && NULL == udata) {
- syslog(LOG_ERR, "%s(): kev.udata == NULL!!!", __func__);
- syslog(LOG_ERR, "kev: ident %d filter %d flags 0x%x fflags 0x%x",
- ident, filter, flags, fflags);
- errno = EINVAL;
- return -1;
- }
-
-#ifdef EVFILT_MACH_IMPLEMENTED
- if (filter != EVFILT_MACHPORT) {
-#endif
-#ifdef PID1_REAP_ADOPTED_CHILDREN
- if (filter == EVFILT_PROC && getpid() == 1)
- return 0;
-#endif
- EV_SET(&kev, ident, filter, flags, fflags, data, udata);
- return kevent(q, &kev, 1, NULL, 0, NULL);
-#ifdef EVFILT_MACH_IMPLEMENTED
- }
-
- if (machcbtable == NULL) {
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-
- pthr_r = pthread_create(&mach_demand_thread, &attr, mach_demand_loop, NULL);
- if (pthr_r != 0) {
- syslog(LOG_ERR, "pthread_create(mach_demand_loop): %s", strerror(pthr_r));
- exit(EXIT_FAILURE);
- }
-
- pthread_attr_destroy(&attr);
-
- machcbtable = malloc(0);
- pipe(pfds);
- machcbwritefd = _fd(pfds[1]);
- machcbreadfd = _fd(pfds[0]);
- kevent_mod(machcbreadfd, EVFILT_READ, EV_ADD, 0, 0, &kqmach_callback);
- kr = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_PORT_SET, &mach_demand_port_set);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_ERR, "mach_port_allocate(demand_port_set): %s", mach_error_string(kr));
- exit(EXIT_FAILURE);
- }
- }
-
- if (flags & EV_ADD) {
- kr = mach_port_move_member(mach_task_self(), ident, mach_demand_port_set);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_ERR, "mach_port_move_member(): %s", mach_error_string(kr));
- exit(EXIT_FAILURE);
- }
-
- if (MACH_PORT_INDEX(ident) > machcbtable_cnt)
- machcbtable = realloc(machcbtable, MACH_PORT_INDEX(ident) * sizeof(void *));
-
- machcbtable[MACH_PORT_INDEX(ident)] = udata;
- } else if (flags & EV_DELETE) {
- kr = mach_port_move_member(mach_task_self(), ident, MACH_PORT_NULL);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_ERR, "mach_port_move_member(): %s", mach_error_string(kr));
- exit(EXIT_FAILURE);
- }
- } else {
- syslog(LOG_DEBUG, "kevent_mod(EVFILT_MACHPORT) with flags: %d", flags);
- errno = EINVAL;
- return -1;
- }
-
- return 0;
-#endif
-}
-
-static int _fd(int fd)
-{
- if (fd >= 0)
- fcntl(fd, F_SETFD, 1);
- return fd;
-}
-
-static void ipc_close(struct conncb *c)
-{
- batch_job_enable(true, c);
-
- TAILQ_REMOVE(&connections, c, tqe);
- launchd_close(c->conn);
- free(c);
-}
-
-static void setup_job_env(launch_data_t obj, const char *key, void *context __attribute__((unused)))
-{
- if (LAUNCH_DATA_STRING == launch_data_get_type(obj))
- setenv(key, launch_data_get_string(obj), 1);
-}
-
-static void unsetup_job_env(launch_data_t obj, const char *key, void *context __attribute__((unused)))
-{
- if (LAUNCH_DATA_STRING == launch_data_get_type(obj))
- unsetenv(key);
-}
-
-static void job_reap(struct jobcb *j)
-{
- bool od = job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND);
- time_t td = time(NULL) - j->start_time;
- bool bad_exit = false;
- int status;
-
- job_log(j, LOG_DEBUG, "Reaping");
-
- if (j->execfd) {
- close(j->execfd);
- j->execfd = 0;
- }
-
-#ifdef PID1_REAP_ADOPTED_CHILDREN
- if (getpid() == 1)
- status = pid1_child_exit_status;
- else
-#endif
- if (-1 == waitpid(j->p, &status, 0)) {
- job_log_error(j, LOG_ERR, "waitpid(%d, ...)", j->p);
- return;
- }
-
- if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
- job_log(j, LOG_WARNING, "exited with exit code: %d", WEXITSTATUS(status));
- bad_exit = true;
- }
-
- if (WIFSIGNALED(status)) {
- int s = WTERMSIG(status);
- if (SIGKILL == s || SIGTERM == s) {
- job_log(j, LOG_NOTICE, "exited: %s", strsignal(s));
- } else {
- job_log(j, LOG_WARNING, "exited abnormally: %s", strsignal(s));
- bad_exit = true;
- }
- }
-
- if (!od) {
- if (td < LAUNCHD_MIN_JOB_RUN_TIME) {
- job_log(j, LOG_WARNING, "respawning too quickly! throttling");
- bad_exit = true;
- j->throttle = true;
- } else if (td >= LAUNCHD_REWARD_JOB_RUN_TIME) {
- job_log(j, LOG_INFO, "lived long enough, forgiving past exit failures");
- j->failed_exits = 0;
- }
- }
-
- if (bad_exit)
- j->failed_exits++;
-
- if (j->failed_exits > 0) {
- int failures_left = LAUNCHD_FAILED_EXITS_THRESHOLD - j->failed_exits;
- if (failures_left)
- job_log(j, LOG_WARNING, "%d more failure%s without living at least %d seconds will cause job removal",
- failures_left, failures_left > 1 ? "s" : "", LAUNCHD_REWARD_JOB_RUN_TIME);
- }
-
- total_children--;
- j->p = 0;
-}
-
-static bool job_restart_fitness_test(struct jobcb *j)
-{
- bool od = job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND);
-
- if (j->firstborn) {
- job_log(j, LOG_DEBUG, "first born died, begin shutdown");
- do_shutdown();
- return false;
- } else if (job_get_bool(j->ldj, LAUNCH_JOBKEY_SERVICEIPC) && !j->checkedin) {
- job_log(j, LOG_WARNING, "failed to checkin");
- job_remove(j);
- return false;
- } else if (j->failed_exits >= LAUNCHD_FAILED_EXITS_THRESHOLD) {
- job_log(j, LOG_WARNING, "too many failures in succession");
- job_remove(j);
- return false;
- } else if (od || shutdown_in_progress) {
- if (!od && shutdown_in_progress)
- job_log(j, LOG_NOTICE, "exited while shutdown is in progress, will not restart unless demand requires it");
- job_watch(j);
- return false;
- }
-
- return true;
-}
-
-static void job_callback(void *obj, struct kevent *kev)
-{
- struct jobcb *j = obj;
- bool d = j->debug;
- bool startnow = true;
- int oldmask = 0;
-
- if (d) {
- oldmask = setlogmask(LOG_UPTO(LOG_DEBUG));
- job_log(j, LOG_DEBUG, "log level debug temporarily enabled while processing job");
- }
-
- if (kev->filter == EVFILT_PROC) {
- job_reap(j);
-
- startnow = job_restart_fitness_test(j);
-
- if (startnow && j->throttle) {
- j->throttle = false;
- job_log(j, LOG_WARNING, "will restart in %d seconds", LAUNCHD_MIN_JOB_RUN_TIME);
- if (-1 == kevent_mod((uintptr_t)j, EVFILT_TIMER, EV_ADD|EV_ONESHOT,
- NOTE_SECONDS, LAUNCHD_MIN_JOB_RUN_TIME, &j->kqjob_callback)) {
- job_log_error(j, LOG_WARNING, "failed to setup timer callback!, starting now!");
- } else {
- startnow = false;
- }
- }
- } else if (kev->filter == EVFILT_TIMER && (void *)kev->ident == j->start_cal_interval) {
- job_set_alarm(j);
- } else if (kev->filter == EVFILT_VNODE) {
- size_t i;
- const char *thepath = NULL;
-
- for (i = 0; i < j->vnodes_cnt; i++) {
- if (j->vnodes[i] == (int)kev->ident) {
- launch_data_t ld_vnodes = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_WATCHPATHS);
-
- thepath = launch_data_get_string(launch_data_array_get_index(ld_vnodes, i));
-
- job_log(j, LOG_DEBUG, "watch path modified: %s", thepath);
-
- if ((NOTE_DELETE|NOTE_RENAME|NOTE_REVOKE) & kev->fflags) {
- job_log(j, LOG_DEBUG, "watch path invalidated: %s", thepath);
- close(j->vnodes[i]);
- j->vnodes[i] = -1; /* this will get fixed in job_watch() */
- }
- }
- }
-
- for (i = 0; i < j->qdirs_cnt; i++) {
- if (j->qdirs[i] == (int)kev->ident) {
- launch_data_t ld_qdirs = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_QUEUEDIRECTORIES);
- int dcc_r;
-
- thepath = launch_data_get_string(launch_data_array_get_index(ld_qdirs, i));
-
- job_log(j, LOG_DEBUG, "queue directory modified: %s", thepath);
-
- if (-1 == (dcc_r = dir_has_files(thepath))) {
- job_log_error(j, LOG_ERR, "dir_has_files(\"%s\", ...)", thepath);
- } else if (0 == dcc_r) {
- job_log(j, LOG_DEBUG, "spurious wake up, directory empty: %s", thepath);
- startnow = false;
- }
- }
- }
- /* if we get here, then the vnodes either wasn't a qdir, or if it was, it has entries in it */
- } else if (kev->filter == EVFILT_READ && (int)kev->ident == j->execfd) {
- if (kev->data > 0) {
- int e;
-
- read(j->execfd, &e, sizeof(e));
- errno = e;
- job_log_error(j, LOG_ERR, "execve()");
- job_remove(j);
- j = NULL;
- startnow = false;
- } else {
- close(j->execfd);
- j->execfd = 0;
- }
- startnow = false;
- }
-
- if (startnow)
- job_start(j);
-
- if (d) {
- /* the job might have been removed, must not call job_log() */
- syslog(LOG_DEBUG, "restoring original log mask");
- setlogmask(oldmask);
- }
-}
-
-static void job_start(struct jobcb *j)
-{
- int spair[2];
- int execspair[2];
- bool sipc;
- char nbuf[64];
- pid_t c;
-
- job_log(j, LOG_DEBUG, "Starting");
-
- if (j->p) {
- job_log(j, LOG_DEBUG, "already running");
- return;
- }
-
- j->checkedin = false;
-
- sipc = job_get_bool(j->ldj, LAUNCH_JOBKEY_SERVICEIPC);
-
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_INETDCOMPATIBILITY))
- sipc = true;
-
- if (sipc)
- socketpair(AF_UNIX, SOCK_STREAM, 0, spair);
-
- socketpair(AF_UNIX, SOCK_STREAM, 0, execspair);
-
- time(&j->start_time);
-
- switch (c = fork_with_bootstrap_port(launchd_bootstrap_port)) {
- case -1:
- job_log_error(j, LOG_ERR, "fork() failed, will try again in one second");
- close(execspair[0]);
- close(execspair[1]);
- if (sipc) {
- close(spair[0]);
- close(spair[1]);
- }
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND))
- job_ignore(j);
- break;
- case 0:
- close(execspair[0]);
- /* wait for our parent to say they've attached a kevent to us */
- read(_fd(execspair[1]), &c, sizeof(c));
- if (j->firstborn) {
- setpgid(getpid(), getpid());
- if (isatty(STDIN_FILENO)) {
- if (tcsetpgrp(STDIN_FILENO, getpid()) == -1)
- job_log_error(j, LOG_WARNING, "tcsetpgrp()");
- }
- }
-
- if (sipc) {
- close(spair[0]);
- sprintf(nbuf, "%d", spair[1]);
- setenv(LAUNCHD_TRUSTED_FD_ENV, nbuf, 1);
- }
- job_start_child(j, execspair[1]);
- break;
- default:
- close(execspair[1]);
- j->execfd = _fd(execspair[0]);
- if (sipc) {
- close(spair[1]);
- ipc_open(_fd(spair[0]), j);
- }
- if (kevent_mod(j->execfd, EVFILT_READ, EV_ADD, 0, 0, &j->kqjob_callback) == -1)
- job_log_error(j, LOG_ERR, "kevent_mod(j->execfd): %m");
- if (kevent_mod(c, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, &j->kqjob_callback) == -1) {
- job_log_error(j, LOG_ERR, "kevent()");
- job_reap(j);
- } else {
- j->p = c;
- total_children++;
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_ONDEMAND))
- job_ignore(j);
- }
- /* this unblocks the child and avoids a race
- * between the above fork() and the kevent_mod() */
- write(j->execfd, &c, sizeof(c));
- break;
- }
-}
-
-static void job_start_child(struct jobcb *j, int execfd)
-{
- launch_data_t ldpa = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_PROGRAMARGUMENTS);
- bool inetcompat = job_get_bool(j->ldj, LAUNCH_JOBKEY_INETDCOMPATIBILITY);
- size_t i, argv_cnt;
- const char **argv, *file2exec = "/usr/libexec/launchproxy";
- int r;
- bool hasprog = false;
-
- job_setup_attributes(j);
-
- if (ldpa) {
- argv_cnt = launch_data_array_get_count(ldpa);
- argv = alloca((argv_cnt + 2) * sizeof(char *));
- for (i = 0; i < argv_cnt; i++)
- argv[i + 1] = launch_data_get_string(launch_data_array_get_index(ldpa, i));
- argv[argv_cnt + 1] = NULL;
- } else {
- argv = alloca(3 * sizeof(char *));
- argv[1] = job_get_string(j->ldj, LAUNCH_JOBKEY_PROGRAM);
- argv[2] = NULL;
- }
-
- if (job_get_string(j->ldj, LAUNCH_JOBKEY_PROGRAM))
- hasprog = true;
-
- if (inetcompat) {
- argv[0] = file2exec;
- } else {
- argv++;
- file2exec = job_get_file2exec(j->ldj);
- }
-
- if (hasprog) {
- r = execv(file2exec, (char *const*)argv);
- } else {
- r = execvp(file2exec, (char *const*)argv);
- }
-
- if (-1 == r) {
- write(execfd, &errno, sizeof(errno));
- job_log_error(j, LOG_ERR, "execv%s(\"%s\", ...)", hasprog ? "" : "p", file2exec);
- }
- exit(EXIT_FAILURE);
-}
-
-static void job_setup_attributes(struct jobcb *j)
-{
- launch_data_t srl = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_SOFTRESOURCELIMITS);
- launch_data_t hrl = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_HARDRESOURCELIMITS);
- bool inetcompat = job_get_bool(j->ldj, LAUNCH_JOBKEY_INETDCOMPATIBILITY);
- launch_data_t tmp;
- size_t i;
- const char *tmpstr;
- struct group *gre = NULL;
- gid_t gre_g = 0;
- static const struct {
- const char *key;
- int val;
- } limits[] = {
- { LAUNCH_JOBKEY_RESOURCELIMIT_CORE, RLIMIT_CORE },
- { LAUNCH_JOBKEY_RESOURCELIMIT_CPU, RLIMIT_CPU },
- { LAUNCH_JOBKEY_RESOURCELIMIT_DATA, RLIMIT_DATA },
- { LAUNCH_JOBKEY_RESOURCELIMIT_FSIZE, RLIMIT_FSIZE },
- { LAUNCH_JOBKEY_RESOURCELIMIT_MEMLOCK, RLIMIT_MEMLOCK },
- { LAUNCH_JOBKEY_RESOURCELIMIT_NOFILE, RLIMIT_NOFILE },
- { LAUNCH_JOBKEY_RESOURCELIMIT_NPROC, RLIMIT_NPROC },
- { LAUNCH_JOBKEY_RESOURCELIMIT_RSS, RLIMIT_RSS },
- { LAUNCH_JOBKEY_RESOURCELIMIT_STACK, RLIMIT_STACK },
- };
-
- setpriority(PRIO_PROCESS, 0, job_get_integer(j->ldj, LAUNCH_JOBKEY_NICE));
-
- if (srl || hrl) {
- for (i = 0; i < (sizeof(limits) / sizeof(limits[0])); i++) {
- struct rlimit rl;
-
- if (getrlimit(limits[i].val, &rl) == -1) {
- job_log_error(j, LOG_WARNING, "getrlimit()");
- continue;
- }
-
- if (hrl)
- rl.rlim_max = job_get_integer(hrl, limits[i].key);
- if (srl)
- rl.rlim_cur = job_get_integer(srl, limits[i].key);
-
- if (setrlimit(limits[i].val, &rl) == -1)
- job_log_error(j, LOG_WARNING, "setrlimit()");
- }
- }
-
- if (!inetcompat && job_get_bool(j->ldj, LAUNCH_JOBKEY_SESSIONCREATE))
- launchd_SessionCreate(job_get_file2exec(j->ldj));
-
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_LOWPRIORITYIO)) {
- int lowprimib[] = { CTL_KERN, KERN_PROC_LOW_PRI_IO };
- int val = 1;
-
- if (sysctl(lowprimib, sizeof(lowprimib) / sizeof(lowprimib[0]), NULL, NULL, &val, sizeof(val)) == -1)
- job_log_error(j, LOG_WARNING, "sysctl(\"%s\")", "kern.proc_low_pri_io");
- }
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_ROOTDIRECTORY))) {
- chroot(tmpstr);
- chdir(".");
- }
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_GROUPNAME))) {
- gre = getgrnam(tmpstr);
- if (gre) {
- gre_g = gre->gr_gid;
- if (-1 == setgid(gre_g)) {
- job_log_error(j, LOG_ERR, "setgid(%d)", gre_g);
- exit(EXIT_FAILURE);
- }
- } else {
- job_log(j, LOG_ERR, "getgrnam(\"%s\") failed", tmpstr);
- exit(EXIT_FAILURE);
- }
- }
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_USERNAME))) {
- struct passwd *pwe = getpwnam(tmpstr);
- if (pwe) {
- uid_t pwe_u = pwe->pw_uid;
- uid_t pwe_g = pwe->pw_gid;
-
- if (pwe->pw_expire && time(NULL) >= pwe->pw_expire) {
- job_log(j, LOG_ERR, "expired account: %s", tmpstr);
- exit(EXIT_FAILURE);
- }
- if (job_get_bool(j->ldj, LAUNCH_JOBKEY_INITGROUPS)) {
- if (-1 == initgroups(tmpstr, gre ? gre_g : pwe_g)) {
- job_log_error(j, LOG_ERR, "initgroups()");
- exit(EXIT_FAILURE);
- }
- }
- if (!gre) {
- if (-1 == setgid(pwe_g)) {
- job_log_error(j, LOG_ERR, "setgid(%d)", pwe_g);
- exit(EXIT_FAILURE);
- }
- }
- if (-1 == setuid(pwe_u)) {
- job_log_error(j, LOG_ERR, "setuid(%d)", pwe_u);
- exit(EXIT_FAILURE);
- }
- } else {
- job_log(j, LOG_WARNING, "getpwnam(\"%s\") failed", tmpstr);
- exit(EXIT_FAILURE);
- }
- }
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_WORKINGDIRECTORY)))
- chdir(tmpstr);
- if (launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_UMASK))
- umask(job_get_integer(j->ldj, LAUNCH_JOBKEY_UMASK));
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_STANDARDOUTPATH))) {
- int sofd = open(tmpstr, O_WRONLY|O_APPEND|O_CREAT, DEFFILEMODE);
- if (sofd == -1) {
- job_log_error(j, LOG_WARNING, "open(\"%s\", ...)", tmpstr);
- } else {
- dup2(sofd, STDOUT_FILENO);
- close(sofd);
- }
- }
- if ((tmpstr = job_get_string(j->ldj, LAUNCH_JOBKEY_STANDARDERRORPATH))) {
- int sefd = open(tmpstr, O_WRONLY|O_APPEND|O_CREAT, DEFFILEMODE);
- if (sefd == -1) {
- job_log_error(j, LOG_WARNING, "open(\"%s\", ...)", tmpstr);
- } else {
- dup2(sefd, STDERR_FILENO);
- close(sefd);
- }
- }
- if ((tmp = launch_data_dict_lookup(j->ldj, LAUNCH_JOBKEY_ENVIRONMENTVARIABLES)))
- launch_data_dict_iterate(tmp, setup_job_env, NULL);
-
- setsid();
-}
-
-#ifdef PID1_REAP_ADOPTED_CHILDREN
-__private_extern__ int pid1_child_exit_status = 0;
-static void pid1waitpid(void)
-{
- pid_t p;
-
- while ((p = waitpid(-1, &pid1_child_exit_status, WNOHANG)) > 0) {
- if (!launchd_check_pid(p))
- init_check_pid(p);
- }
-}
-#endif
-
-static void do_shutdown(void)
-{
- struct jobcb *j;
-
- shutdown_in_progress = true;
-
- kevent_mod(asynckq, EVFILT_READ, EV_DISABLE, 0, 0, &kqasync_callback);
-
- TAILQ_FOREACH(j, &jobs, tqe)
- job_stop(j);
-
- if (getpid() == 1) {
- catatonia();
- mach_start_shutdown(SIGTERM);
- }
-}
-
-static void signal_callback(void *obj __attribute__((unused)), struct kevent *kev)
-{
- switch (kev->ident) {
- case SIGHUP:
- update_ttys();
- reload_launchd_config();
- break;
- case SIGTERM:
- do_shutdown();
- break;
-#ifdef PID1_REAP_ADOPTED_CHILDREN
- case SIGCHLD:
- /* <rdar://problem/3632556> Please automatically reap processes reparented to PID 1 */
- if (getpid() == 1)
- pid1waitpid();
- break;
-#endif
- default:
- break;
- }
-}
-
-static void fs_callback(void)
-{
- static bool mounted_volfs = false;
-
- if (1 != getpid())
- mounted_volfs = true;
-
- if (pending_stdout) {
- int fd = open(pending_stdout, O_CREAT|O_APPEND|O_WRONLY, DEFFILEMODE);
- if (fd != -1) {
- dup2(fd, STDOUT_FILENO);
- close(fd);
- free(pending_stdout);
- pending_stdout = NULL;
- }
- }
- if (pending_stderr) {
- int fd = open(pending_stderr, O_CREAT|O_APPEND|O_WRONLY, DEFFILEMODE);
- if (fd != -1) {
- dup2(fd, STDERR_FILENO);
- close(fd);
- free(pending_stderr);
- pending_stderr = NULL;
- }
- }
-
- if (!mounted_volfs) {
- int r = mount("volfs", VOLFSDIR, MNT_RDONLY, NULL);
-
- if (-1 == r && errno == ENOENT) {
- mkdir(VOLFSDIR, ACCESSPERMS & ~(S_IWUSR|S_IWGRP|S_IWOTH));
- r = mount("volfs", VOLFSDIR, MNT_RDONLY, NULL);
- }
-
- if (-1 == r) {
- syslog(LOG_WARNING, "mount(\"%s\", \"%s\", ...): %m", "volfs", VOLFSDIR);
- } else {
- mounted_volfs = true;
- }
- }
-
- if (!launchd_inited)
- launchd_server_init(false);
-}
-
-static void readcfg_callback(void *obj __attribute__((unused)), struct kevent *kev __attribute__((unused)))
-{
- int status;
-
-#ifdef PID1_REAP_ADOPTED_CHILDREN
- if (getpid() == 1)
- status = pid1_child_exit_status;
- else
-#endif
- if (-1 == waitpid(readcfg_pid, &status, 0)) {
- syslog(LOG_WARNING, "waitpid(readcfg_pid, ...): %m");
- return;
- }
-
- readcfg_pid = 0;
-
- if (WIFEXITED(status)) {
- if (WEXITSTATUS(status))
- syslog(LOG_WARNING, "Unable to read launchd.conf: launchctl exited with status: %d", WEXITSTATUS(status));
- } else if (WIFSIGNALED(status)) {
- syslog(LOG_WARNING, "Unable to read launchd.conf: launchctl exited abnormally: %s", strsignal(WTERMSIG(status)));
- } else {
- syslog(LOG_WARNING, "Unable to read launchd.conf: launchctl exited abnormally");
- }
-}
-
-#ifdef EVFILT_MACH_IMPLEMENTED
-static void *mach_demand_loop(void *arg __attribute__((unused)))
-{
- mach_msg_empty_rcv_t dummy;
- kern_return_t kr;
- mach_port_name_array_t members;
- mach_msg_type_number_t membersCnt;
- mach_port_status_t status;
- mach_msg_type_number_t statusCnt;
- unsigned int i;
-
- for (;;) {
-
- /*
- * Receive indication of message on demand service
- * ports without actually receiving the message (we'll
- * let the actual server do that.
- */
- kr = mach_msg(&dummy.header, MACH_RCV_MSG|MACH_RCV_LARGE,
- 0, 0, mach_demand_port_set, 0, MACH_PORT_NULL);
- if (kr != MACH_RCV_TOO_LARGE) {
- syslog(LOG_WARNING, "%s(): mach_msg(): %s", __func__, mach_error_string(kr));
- continue;
- }
-
- /*
- * Some port(s) now have messages on them, find out
- * which ones (there is no indication of which port
- * triggered in the MACH_RCV_TOO_LARGE indication).
- */
- kr = mach_port_get_set_status(mach_task_self(),
- mach_demand_port_set, &members, &membersCnt);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_WARNING, "%s(): mach_port_get_set_status(): %s", __func__, mach_error_string(kr));
- continue;
- }
-
- for (i = 0; i < membersCnt; i++) {
- statusCnt = MACH_PORT_RECEIVE_STATUS_COUNT;
- kr = mach_port_get_attributes(mach_task_self(), members[i],
- MACH_PORT_RECEIVE_STATUS, (mach_port_info_t)&status, &statusCnt);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_WARNING, "%s(): mach_port_get_attributes(): %s", __func__, mach_error_string(kr));
- continue;
- }
-
- /*
- * For each port with messages, take it out of the
- * demand service portset, and inform the main thread
- * that it might have to start the server responsible
- * for it.
- */
- if (status.mps_msgcount) {
- kr = mach_port_move_member(mach_task_self(), members[i], MACH_PORT_NULL);
- if (kr != KERN_SUCCESS) {
- syslog(LOG_WARNING, "%s(): mach_port_move_member(): %s", __func__, mach_error_string(kr));
- continue;
- }
- write(machcbwritefd, &(members[i]), sizeof(members[i]));
- }
- }
-
- kr = vm_deallocate(mach_task_self(), (vm_address_t) members,
- (vm_size_t) membersCnt * sizeof(mach_port_name_t));
- if (kr != KERN_SUCCESS) {
- syslog(LOG_WARNING, "%s(): vm_deallocate(): %s", __func__, mach_error_string(kr));
- continue;
- }
- }
-
- return NULL;
-}
-#endif
-
-static void reload_launchd_config(void)
-{
- struct stat sb;
- static char *ldconf = PID1LAUNCHD_CONF;
- const char *h = getenv("HOME");
-
- if (h && ldconf == PID1LAUNCHD_CONF)
- asprintf(&ldconf, "%s/%s", h, LAUNCHD_CONF);
-
- if (!ldconf)
- return;
-
- if (lstat(ldconf, &sb) == 0) {
- int spair[2];
- socketpair(AF_UNIX, SOCK_STREAM, 0, spair);
- readcfg_pid = fork_with_bootstrap_port(launchd_bootstrap_port);
- if (readcfg_pid == 0) {
- char nbuf[100];
- close(spair[0]);
- sprintf(nbuf, "%d", spair[1]);
- setenv(LAUNCHD_TRUSTED_FD_ENV, nbuf, 1);
- int fd = open(ldconf, O_RDONLY);
- if (fd == -1) {
- syslog(LOG_ERR, "open(\"%s\"): %m", ldconf);
- exit(EXIT_FAILURE);
- }
- dup2(fd, STDIN_FILENO);
- close(fd);
- execl(LAUNCHCTL_PATH, LAUNCHCTL_PATH, NULL);
- syslog(LOG_ERR, "execl(\"%s\", ...): %m", LAUNCHCTL_PATH);
- exit(EXIT_FAILURE);
- } else if (readcfg_pid == -1) {
- close(spair[0]);
- close(spair[1]);
- syslog(LOG_ERR, "fork(): %m");
- readcfg_pid = 0;
- } else {
- close(spair[1]);
- ipc_open(_fd(spair[0]), NULL);
- if (kevent_mod(readcfg_pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, &kqreadcfg_callback) == -1)
- syslog(LOG_ERR, "kevent_mod(EVFILT_PROC, &kqreadcfg_callback): %m");
- }
- }
-}
-
-static void conceive_firstborn(char *argv[])
-{
- launch_data_t r, d = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
- launch_data_t args = launch_data_alloc(LAUNCH_DATA_ARRAY);
- launch_data_t l = launch_data_new_string("com.apple.launchd.firstborn");
- size_t i;
-
- for (i = 0; *argv; argv++, i++)
- launch_data_array_set_index(args, launch_data_new_string(*argv), i);
-
- launch_data_dict_insert(d, args, LAUNCH_JOBKEY_PROGRAMARGUMENTS);
- launch_data_dict_insert(d, l, LAUNCH_JOBKEY_LABEL);
-
- r = load_job(d);
-
- launch_data_free(r);
- launch_data_free(d);
-
- TAILQ_FIRST(&jobs)->firstborn = true;
-}
-
-static void loopback_setup(void)
-{
- struct ifaliasreq ifra;
- struct in6_aliasreq ifra6;
- struct ifreq ifr;
- int s, s6;
-
- memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, "lo0");
-
- if (-1 == (s = socket(AF_INET, SOCK_DGRAM, 0)))
- syslog(LOG_ERR, "%s: socket(%s, ...): %m", __PRETTY_FUNCTION__, "AF_INET");
- if (-1 == (s6 = socket(AF_INET6, SOCK_DGRAM, 0)))
- syslog(LOG_ERR, "%s: socket(%s, ...): %m", __PRETTY_FUNCTION__, "AF_INET6");
-
- if (ioctl(s, SIOCGIFFLAGS, &ifr) == -1) {
- syslog(LOG_ERR, "ioctl(SIOCGIFFLAGS): %m");
- } else {
- ifr.ifr_flags |= IFF_UP;
-
- if (ioctl(s, SIOCSIFFLAGS, &ifr) == -1)
- syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
- }
-
- memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, "lo0");
-
- if (ioctl(s6, SIOCGIFFLAGS, &ifr) == -1) {
- syslog(LOG_ERR, "ioctl(SIOCGIFFLAGS): %m");
- } else {
- ifr.ifr_flags |= IFF_UP;
-
- if (ioctl(s6, SIOCSIFFLAGS, &ifr) == -1)
- syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
- }
-
- memset(&ifra, 0, sizeof(ifra));
- strcpy(ifra.ifra_name, "lo0");
-
- ((struct sockaddr_in *)&ifra.ifra_addr)->sin_family = AF_INET;
- ((struct sockaddr_in *)&ifra.ifra_addr)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- ((struct sockaddr_in *)&ifra.ifra_addr)->sin_len = sizeof(struct sockaddr_in);
- ((struct sockaddr_in *)&ifra.ifra_mask)->sin_family = AF_INET;
- ((struct sockaddr_in *)&ifra.ifra_mask)->sin_addr.s_addr = htonl(IN_CLASSA_NET);
- ((struct sockaddr_in *)&ifra.ifra_mask)->sin_len = sizeof(struct sockaddr_in);
-
- if (ioctl(s, SIOCAIFADDR, &ifra) == -1)
- syslog(LOG_ERR, "ioctl(SIOCAIFADDR ipv4): %m");
-
- memset(&ifra6, 0, sizeof(ifra6));
- strcpy(ifra6.ifra_name, "lo0");
-
- ifra6.ifra_addr.sin6_family = AF_INET6;
- ifra6.ifra_addr.sin6_addr = in6addr_loopback;
- ifra6.ifra_addr.sin6_len = sizeof(struct sockaddr_in6);
- ifra6.ifra_prefixmask.sin6_family = AF_INET6;
- memset(&ifra6.ifra_prefixmask.sin6_addr, 0xff, sizeof(struct in6_addr));
- ifra6.ifra_prefixmask.sin6_len = sizeof(struct sockaddr_in6);
- ifra6.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME;
- ifra6.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME;
-
- if (ioctl(s6, SIOCAIFADDR_IN6, &ifra6) == -1)
- syslog(LOG_ERR, "ioctl(SIOCAIFADDR ipv6): %m");
-
- close(s);
- close(s6);
-}
-
-static void workaround3048875(int argc, char *argv[])
-{
- int i;
- char **ap, *newargv[100], *p = argv[1];
-
- if (argc == 1 || argc > 2)
- return;
-
- newargv[0] = argv[0];
- for (ap = newargv + 1, i = 1; ap < &newargv[100]; ap++, i++) {
- if ((*ap = strsep(&p, " \t")) == NULL)
- break;
- if (**ap == '\0') {
- *ap = NULL;
- break;
- }
- }
-
- if (argc == i)
- return;
-
- execv(newargv[0], newargv);
-}
-
-static launch_data_t adjust_rlimits(launch_data_t in)
-{
- static struct rlimit *l = NULL;
- static size_t lsz = sizeof(struct rlimit) * RLIM_NLIMITS;
- struct rlimit *ltmp;
- size_t i,ltmpsz;
-
- if (l == NULL) {
- l = malloc(lsz);
- for (i = 0; i < RLIM_NLIMITS; i++) {
- if (getrlimit(i, l + i) == -1)
- syslog(LOG_WARNING, "getrlimit(): %m");
- }
- }
-
- if (in) {
- ltmp = launch_data_get_opaque(in);
- ltmpsz = launch_data_get_opaque_size(in);
-
- if (ltmpsz > lsz) {
- syslog(LOG_WARNING, "Too much rlimit data sent!");
- ltmpsz = lsz;
- }
-
- for (i = 0; i < (ltmpsz / sizeof(struct rlimit)); i++) {
- if (ltmp[i].rlim_cur == l[i].rlim_cur && ltmp[i].rlim_max == l[i].rlim_max)
- continue;
-
- if (readcfg_pid && getpid() == 1) {
- int gmib[] = { CTL_KERN, KERN_MAXPROC };
- int pmib[] = { CTL_KERN, KERN_MAXPROCPERUID };
- const char *gstr = "kern.maxproc";
- const char *pstr = "kern.maxprocperuid";
- int gval = ltmp[i].rlim_max;
- int pval = ltmp[i].rlim_cur;
- switch (i) {
- case RLIMIT_NOFILE:
- gmib[1] = KERN_MAXFILES;
- pmib[1] = KERN_MAXFILESPERPROC;
- gstr = "kern.maxfiles";
- pstr = "kern.maxfilesperproc";
- break;
- case RLIMIT_NPROC:
- /* kernel will not clamp to this value, we must */
- if (gval > (2048 + 20))
- gval = 2048 + 20;
- break;
- default:
- break;
- }
- if (sysctl(gmib, 2, NULL, NULL, &gval, sizeof(gval)) == -1)
- syslog(LOG_WARNING, "sysctl(\"%s\"): %m", gstr);
- if (sysctl(pmib, 2, NULL, NULL, &pval, sizeof(pval)) == -1)
- syslog(LOG_WARNING, "sysctl(\"%s\"): %m", pstr);
- }
- if (setrlimit(i, ltmp + i) == -1)
- syslog(LOG_WARNING, "setrlimit(): %m");
- /* the kernel may have clamped the values we gave it */
- if (getrlimit(i, l + i) == -1)
- syslog(LOG_WARNING, "getrlimit(): %m");
- }
- }
-
- return launch_data_new_opaque(l, sizeof(struct rlimit) * RLIM_NLIMITS);
-}
-
-__private_extern__ void launchd_SessionCreate(const char *who)
-{
- void *seclib = dlopen(SECURITY_LIB, RTLD_LAZY);
- OSStatus (*sescr)(SessionCreationFlags flags, SessionAttributeBits attributes);
-
- if (seclib) {
- sescr = dlsym(seclib, "SessionCreate");
-
- if (sescr) {
- OSStatus scr = sescr(0, 0);
- if (scr != noErr)
- syslog(LOG_WARNING, "%s: SessionCreate() failed: %d", who, scr);
- } else {
- syslog(LOG_WARNING, "%s: couldn't find SessionCreate() in %s", who, SECURITY_LIB);
- }
-
- dlclose(seclib);
- } else {
- syslog(LOG_WARNING, "%s: dlopen(\"%s\",...): %s", who, SECURITY_LIB, dlerror());
- }
-}
-
-static int dir_has_files(const char *path)
-{
- DIR *dd = opendir(path);
- struct dirent *de;
- bool r = 0;
-
- if (!dd)
- return -1;
-
- while ((de = readdir(dd))) {
- if (strcmp(de->d_name, ".") && strcmp(de->d_name, "..")) {
- r = 1;
- break;
- }
- }
-
- closedir(dd);
- return r;
-}
-
-static void job_set_alarm(struct jobcb *j)
-{
- struct tm otherlatertm, latertm, *nowtm;
- time_t later, otherlater = 0, now = time(NULL);
-
- nowtm = localtime(&now);
-
- latertm = *nowtm;
-
- latertm.tm_sec = 0;
- latertm.tm_isdst = -1;
-
-
- if (-1 != j->start_cal_interval->tm_min)
- latertm.tm_min = j->start_cal_interval->tm_min;
- if (-1 != j->start_cal_interval->tm_hour)
- latertm.tm_hour = j->start_cal_interval->tm_hour;
-
- otherlatertm = latertm;
-
- if (-1 != j->start_cal_interval->tm_mday)
- latertm.tm_mday = j->start_cal_interval->tm_mday;
- if (-1 != j->start_cal_interval->tm_mon)
- latertm.tm_mon = j->start_cal_interval->tm_mon;
-
- /* cron semantics are fun */
- if (-1 != j->start_cal_interval->tm_wday) {
- int delta, realwday = j->start_cal_interval->tm_wday;
-
- if (realwday == 7)
- realwday = 0;
-
- delta = realwday - nowtm->tm_wday;
-
- /* Now Later Delta Desired
- * 0 6 6 6
- * 6 0 -6 7 + -6
- * 1 5 4 4
- * 5 1 -4 7 + -4
- */
- if (delta > 0)
- otherlatertm.tm_mday += delta;
- else if (delta < 0)
- otherlatertm.tm_mday += 7 + delta;
- else if (-1 != j->start_cal_interval->tm_hour && otherlatertm.tm_hour <= nowtm->tm_hour)
- otherlatertm.tm_mday += 7;
- else if (-1 != j->start_cal_interval->tm_min && otherlatertm.tm_min <= nowtm->tm_min)
- otherlatertm.tm_hour++;
- else
- otherlatertm.tm_min++;
-
- otherlater = mktime(&otherlatertm);
- }
-
- if (-1 != j->start_cal_interval->tm_mon && latertm.tm_mon <= nowtm->tm_mon) {
- latertm.tm_year++;
- } else if (-1 != j->start_cal_interval->tm_mday && latertm.tm_mday <= nowtm->tm_mday) {
- latertm.tm_mon++;
- } else if (-1 != j->start_cal_interval->tm_hour && latertm.tm_hour <= nowtm->tm_hour) {
- latertm.tm_mday++;
- } else if (-1 != j->start_cal_interval->tm_min && latertm.tm_min <= nowtm->tm_min) {
- latertm.tm_hour++;
- } else {
- latertm.tm_min++;
- }
-
- later = mktime(&latertm);
-
- if (otherlater) {
- if (-1 != j->start_cal_interval->tm_mday)
- later = later < otherlater ? later : otherlater;
- else
- later = otherlater;
- }
-
- if (-1 == kevent_mod((uintptr_t)j->start_cal_interval, EVFILT_TIMER, EV_ADD, NOTE_ABSOLUTE|NOTE_SECONDS, later, &j->kqjob_callback))
- job_log_error(j, LOG_ERR, "adding kevent alarm");
-}
-
-static void job_log_error(struct jobcb *j, int pri, const char *msg, ...)
-{
- size_t newmsg_sz = strlen(msg) + strlen(j->label) + 200;
- char *newmsg = alloca(newmsg_sz);
- va_list ap;
-
- sprintf(newmsg, "%s: %s: %s", j->label, msg, strerror(errno));
-
- va_start(ap, msg);
-
- vsyslog(pri, newmsg, ap);
-
- va_end(ap);
-}
-
-static void job_log(struct jobcb *j, int pri, const char *msg, ...)
-{
- size_t newmsg_sz = strlen(msg) + sizeof(": ") + strlen(j->label);
- char *newmsg = alloca(newmsg_sz);
- va_list ap;
-
- sprintf(newmsg, "%s: %s", j->label, msg);
-
- va_start(ap, msg);
-
- vsyslog(pri, newmsg, ap);
-
- va_end(ap);
-}
-
-static void async_callback(void)
-{
- struct timespec timeout = { 0, 0 };
- struct kevent kev;
-
- switch (kevent(asynckq, NULL, 0, &kev, 1, &timeout)) {
- case -1:
- syslog(LOG_DEBUG, "kevent(): %m");
- break;
- case 1:
- (*((kq_callback *)kev.udata))(kev.udata, &kev);
- case 0:
- break;
- default:
- syslog(LOG_DEBUG, "unexpected: kevent() returned something != 0, -1 or 1");
- }
-}
-
-static void testfd_or_openfd(int fd, const char *path, int flags)
-{
- int tmpfd;
-
- if (-1 != (tmpfd = dup(fd))) {
- close(tmpfd);
- } else {
- if (-1 == (tmpfd = open(path, flags))) {
- syslog(LOG_ERR, "open(\"%s\", ...): %m", path);
- } else if (tmpfd != fd) {
- dup2(tmpfd, fd);
- close(tmpfd);
- }
- }
+ runtime_syslog(LOG_NOTICE, "Bug: %s:%u (%s):%u: %s", file, line, buf, saved_errno, test);
}
projects / apple / launchd.git / blobdiff