#include "config.h"
#include "launch.h"
#include "launch_priv.h"
#include "bootstrap.h"
#include "vproc.h"
#include "vproc_priv.h"
#include "vproc_internal.h"
#include "bootstrap_priv.h"
#include "launch_internal.h"
#include <CoreFoundation/CoreFoundation.h>
#include <CoreFoundation/CFPriv.h>
#include <CoreFoundation/CFLogUtilities.h>
#include <TargetConditionals.h>
#include <IOKit/IOKitLib.h>
#include <NSSystemDirectories.h>
#include <mach/mach.h>
#include <mach-o/getsect.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/sysctl.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/fcntl.h>
#include <sys/event.h>
#include <sys/resource.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet6/nd6.h>
#include <unistd.h>
#include <dirent.h>
#include <libgen.h>
#include <libinfo.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <pwd.h>
#include <grp.h>
#include <netdb.h>
#include <syslog.h>
#include <glob.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <dns_sd.h>
#include <paths.h>
#include <utmpx.h>
#include <bootfiles.h>
#include <sysexits.h>
#include <util.h>
#include <spawn.h>
#include <sys/syslimits.h>
#include <fnmatch.h>
#include <os/assumes.h>
#include <dlfcn.h>
#if HAVE_SYSTEMSTATS
#include <systemstats/systemstats.h>
#endif
#if HAVE_LIBAUDITD
#include <bsm/auditd_lib.h>
#ifndef AUDITD_PLIST_FILE
#define AUDITD_PLIST_FILE "/System/Library/LaunchDaemons/com.apple.auditd.plist"
#endif
#endif
extern char **environ;
#define LAUNCH_SECDIR _PATH_TMP "launch-XXXXXX"
#define LAUNCH_ENV_KEEPCONTEXT "LaunchKeepContext"
#define LAUNCH_ENV_BOOTSTRAPPINGSYSTEM "LaunchBootstrappingSystem"
#define CFTypeCheck(cf, type) (CFGetTypeID(cf) == type ## GetTypeID())
#define CFReleaseIfNotNULL(cf) if (cf) CFRelease(cf);
#if TARGET_OS_EMBEDDED
#include <sys/kern_memorystatus.h>
#define XPC_PLIST_CACHE "/System/Library/Caches/com.apple.xpcd/xpcd_cache.dylib"
#define XPC_PLIST_CACHE_KEY "LaunchDaemons"
#if JETSAM_PRIORITY_REVISION
#define READ_JETSAM_DEFAULTS 1
#define JETSAM_PROP_DIR "/System/Library/LaunchDaemons"
#define JETSAM_PROP_DIR_LENGTH (sizeof(JETSAM_PROP_DIR) - 1)
#define JETSAM_PROP_PREFIX "com.apple.jetsamproperties."
#define JETSAM_PROP_PREFIX_LENGTH (sizeof(JETSAM_PROP_PREFIX) - 1)
#define JETSAM_PROP_SUFFIX ".plist"
#define JETSAM_PROP_SUFFIX_LENGTH (sizeof(JETSAM_PROP_SUFFIX) - 1)
#endif
#endif
struct load_unload_state {
launch_data_t pass1;
char *session_type;
bool editondisk:1, load:1, forceload:1;
};
static void launchctl_log(int level, const char *fmt, ...);
static void launchctl_log_CFString(int level, CFStringRef string);
static void myCFDictionaryApplyFunction(const void *key, const void *value, void *context);
static CFTypeRef CFTypeCreateFromLaunchData(launch_data_t obj);
static CFArrayRef CFArrayCreateFromLaunchArray(launch_data_t arr);
static CFDictionaryRef CFDictionaryCreateFromLaunchDictionary(launch_data_t dict);
static bool launch_data_array_append(launch_data_t a, launch_data_t o);
static void insert_event(launch_data_t, const char *, const char *, launch_data_t);
static void distill_jobs(launch_data_t);
static void distill_config_file(launch_data_t);
static void distill_fsevents(launch_data_t);
static void sock_dict_cb(launch_data_t what, const char *key, void *context);
static void sock_dict_edit_entry(launch_data_t tmp, const char *key, launch_data_t fdarray, launch_data_t thejob);
static launch_data_t CF2launch_data(CFTypeRef);
static launch_data_t read_plist_file(const char *file, bool editondisk, bool load);
#if TARGET_OS_EMBEDDED
static CFPropertyListRef GetPropertyListFromCache(void);
static CFPropertyListRef CreateMyPropertyListFromCachedFile(const char *posixfile);
static bool require_jobs_from_cache(void);
#endif
static CFPropertyListRef CreateMyPropertyListFromFile(const char *);
static CFPropertyListRef CFPropertyListCreateFromFile(CFURLRef plistURL);
static void WriteMyPropertyListToFile(CFPropertyListRef, const char *);
static bool path_goodness_check(const char *path, bool forceload);
static void readpath(const char *, struct load_unload_state *);
static void readfile(const char *, struct load_unload_state *);
static int _fd(int);
static int demux_cmd(int argc, char *const argv[]);
static void submit_job_pass(launch_data_t jobs);
static void do_mgroup_join(int fd, int family, int socktype, int protocol, const char *mgroup);
static mach_port_t str2bsport(const char *s);
static void print_jobs(launch_data_t j, const char *key, void *context);
static void print_obj(launch_data_t obj, const char *key, void *context);
static bool str2lim(const char *buf, rlim_t *res);
static const char *lim2str(rlim_t val, char *buf);
static const char *num2name(int n);
static ssize_t name2num(const char *n);
static void unloadjob(launch_data_t job);
static void print_key_value(launch_data_t obj, const char *key, void *context);
static void print_launchd_env(launch_data_t obj, const char *key, void *context);
static void loopback_setup_ipv4(void);
static void loopback_setup_ipv6(void);
static pid_t fwexec(const char *const *argv, int *wstatus);
static void do_potential_fsck(void);
static bool path_check(const char *path);
static bool is_safeboot(void);
static bool is_netboot(void);
static void apply_sysctls_from_file(const char *thefile);
static void empty_dir(const char *thedir, struct stat *psb);
static int touch_file(const char *path, mode_t m);
static void do_sysversion_sysctl(void);
static void do_application_firewall_magic(int sfd, launch_data_t thejob);
static void preheat_page_cache_hack(void);
static void do_bootroot_magic(void);
static void do_single_user_mode(bool);
static bool do_single_user_mode2(void);
static void do_crash_debug_mode(void);
static bool do_crash_debug_mode2(void);
static void read_launchd_conf(void);
static bool job_disabled_logic(launch_data_t obj);
static void fix_bogus_file_metadata(void);
static void do_file_init(void) __attribute__((constructor));
static void setup_system_context(void);
static void handle_system_bootstrapper_crashes_separately(void);
static void fatal_signal_handler(int sig, siginfo_t *si, void *uap);
typedef enum {
BOOTCACHE_START = 1,
BOOTCACHE_TAG,
BOOTCACHE_STOP,
} BootCache_action_t;
static void do_BootCache_magic(BootCache_action_t what);
static int bootstrap_cmd(int argc, char *const argv[]);
static int load_and_unload_cmd(int argc, char *const argv[]);
static int start_stop_remove_cmd(int argc, char *const argv[]);
static int submit_cmd(int argc, char *const argv[]);
static int list_cmd(int argc, char *const argv[]);
static int setenv_cmd(int argc, char *const argv[]);
static int unsetenv_cmd(int argc, char *const argv[]);
static int getenv_and_export_cmd(int argc, char *const argv[]);
static int wait4debugger_cmd(int argc, char *const argv[]);
static int limit_cmd(int argc, char *const argv[]);
static int stdio_cmd(int argc, char *const argv[]);
static int fyi_cmd(int argc, char *const argv[]);
static int logupdate_cmd(int argc, char *const argv[]);
static int umask_cmd(int argc, char *const argv[]);
static int getrusage_cmd(int argc, char *const argv[]);
static int bsexec_cmd(int argc, char *const argv[]);
static int _bslist_cmd(mach_port_t bport, unsigned int depth, bool show_job, bool local_only);
static int bslist_cmd(int argc, char *const argv[]);
static int _bstree_cmd(mach_port_t bsport, unsigned int depth, bool show_jobs);
static int bstree_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)));
static int managerpid_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)));
static int manageruid_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)));
static int managername_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)));
static int asuser_cmd(int argc, char * const argv[]);
static int exit_cmd(int argc, char *const argv[]) __attribute__((noreturn));
static int help_cmd(int argc, char *const argv[]);
static const struct {
const char *name;
int (*func)(int argc, char *const argv[]);
const char *desc;
} cmds[] = {
{ "load", load_and_unload_cmd, "Load configuration files and/or directories" },
{ "unload", load_and_unload_cmd, "Unload configuration files and/or directories" },
{ "start", start_stop_remove_cmd, "Start specified job" },
{ "stop", start_stop_remove_cmd, "Stop specified job" },
{ "submit", submit_cmd, "Submit a job from the command line" },
{ "remove", start_stop_remove_cmd, "Remove specified job" },
{ "bootstrap", bootstrap_cmd, "Bootstrap launchd" },
{ "list", list_cmd, "List jobs and information about jobs" },
{ "setenv", setenv_cmd, "Set an environmental variable in launchd" },
{ "unsetenv", unsetenv_cmd, "Unset an environmental variable in launchd" },
{ "getenv", getenv_and_export_cmd, "Get an environmental variable from launchd" },
{ "export", getenv_and_export_cmd, "Export shell settings from launchd" },
{ "debug", wait4debugger_cmd, "Set the WaitForDebugger flag for the target job to true." },
{ "limit", limit_cmd, "View and adjust launchd resource limits" },
{ "stdout", stdio_cmd, "Redirect launchd's standard out to the given path" },
{ "stderr", stdio_cmd, "Redirect launchd's standard error to the given path" },
{ "shutdown", fyi_cmd, "Prepare for system shutdown" },
{ "singleuser", fyi_cmd, "Switch to single-user mode" },
{ "getrusage", getrusage_cmd, "Get resource usage statistics from launchd" },
{ "log", logupdate_cmd, "Adjust the logging level or mask of launchd" },
{ "umask", umask_cmd, "Change launchd's umask" },
{ "bsexec", bsexec_cmd, "Execute a process within a different Mach bootstrap subset" },
{ "bslist", bslist_cmd, "List Mach bootstrap services and optional servers" },
{ "bstree", bstree_cmd, "Show the entire Mach bootstrap tree. Requires root privileges." },
{ "managerpid", managerpid_cmd, "Print the PID of the launchd managing this Mach bootstrap." },
{ "manageruid", manageruid_cmd, "Print the UID of the launchd managing this Mach bootstrap." },
{ "managername", managername_cmd, "Print the name of this Mach bootstrap." },
{ "asuser", asuser_cmd, "Execute a subcommand in the given user's context." },
{ "exit", exit_cmd, "Exit the interactive invocation of launchctl" },
{ "quit", exit_cmd, "Quit the interactive invocation of launchctl" },
{ "help", help_cmd, "This help output" },
};
static bool _launchctl_istty;
static bool _launchctl_verbose;
static bool _launchctl_is_managed;
static bool _launchctl_apple_internal;
static bool _launchctl_system_context;
static bool _launchctl_uid0_context;
static bool _launchctl_system_bootstrap;
static bool _launchctl_peruser_bootstrap;
static bool _launchctl_verbose_boot = false;
static bool _launchctl_startup_debugging = false;
static bool _launchctl_overrides_db_changed = false;
static CFMutableDictionaryRef _launchctl_overrides_db = NULL;
static char *_launchctl_job_overrides_db_path;
static char *_launchctl_managername = NULL;
#if READ_JETSAM_DEFAULTS
static CFDictionaryRef _launchctl_jetsam_defaults = NULL;
static CFDictionaryRef _launchctl_jetsam_defaults_cached = NULL;
#endif
int
main(int argc, char *const argv[])
{
char *l;
if (getenv(LAUNCH_ENV_BOOTSTRAPPINGSYSTEM)) {
si_search_module_set_flags("mdns", 1);
si_search_module_set_flags("ds", 1);
}
int64_t is_managed = 0;
(void)vproc_swap_integer(NULL, VPROC_GSK_IS_MANAGED, NULL, &is_managed);
_launchctl_is_managed = is_managed;
_launchctl_istty = isatty(STDIN_FILENO);
argc--, argv++;
if (argc > 0 && argv[0][0] == '-') {
char *flago;
for (flago = argv[0] + 1; *flago; flago++) {
switch (*flago) {
case 'v':
_launchctl_verbose = true;
break;
case 'u':
if (argc > 1) {
if (strncmp(argv[1], "root", sizeof("root")) == 0) {
_launchctl_uid0_context = true;
} else {
launchctl_log(LOG_ERR, "Unknown user: %s", argv[1]);
exit(EXIT_FAILURE);
}
argc--, argv++;
} else {
launchctl_log(LOG_ERR, "-u option requires an argument.");
}
break;
case '1':
_launchctl_system_context = true;
break;
default:
launchctl_log(LOG_ERR, "Unknown argument: '-%c'", *flago);
break;
}
}
argc--, argv++;
}
if (_launchctl_uid0_context) {
int64_t manager_uid = -1, manager_pid = -1;
(void)vproc_swap_integer(NULL, VPROC_GSK_MGR_UID, NULL, &manager_uid);
(void)vproc_swap_integer(NULL, VPROC_GSK_MGR_PID, NULL, &manager_pid);
if (manager_uid || manager_pid == 1) {
launchctl_log(LOG_ERR, "Running in the root user's per-user context is not supported outside of the root user's bootstrap.");
exit(EXIT_FAILURE);
}
} else if (!(_launchctl_system_context || _launchctl_uid0_context)) {
_launchctl_system_context = (!_launchctl_is_managed && getuid() == 0);
}
if (_launchctl_system_context) {
if (getuid() == 0) {
setup_system_context();
} else {
launchctl_log(LOG_ERR, "You must be root to run in the system context.");
exit(EXIT_FAILURE);
}
} else if (_launchctl_uid0_context) {
if (getuid() != 0) {
launchctl_log(LOG_ERR, "You must be root to run in the root user context.");
exit(EXIT_FAILURE);
}
}
if (!readline) {
launchctl_log(LOG_ERR, "missing library: readline");
exit(EXIT_FAILURE);
}
if (argc == 0) {
while ((l = readline(_launchctl_istty ? "launchd% " : NULL))) {
char *inputstring = l, *argv2[100], **ap = argv2;
int i = 0;
while ((*ap = strsep(&inputstring, " \t"))) {
if (**ap != '\0') {
ap++;
i++;
}
}
if (i > 0) {
demux_cmd(i, argv2);
}
free(l);
}
if (_launchctl_istty) {
fputc('\n', stdout);
}
}
if (argc > 0) {
exit(demux_cmd(argc, argv));
}
exit(EXIT_SUCCESS);
}
int
demux_cmd(int argc, char *const argv[])
{
size_t i;
optind = 1;
optreset = 1;
for (i = 0; i < (sizeof cmds / sizeof cmds[0]); i++) {
if (!strcmp(cmds[i].name, argv[0])) {
return cmds[i].func(argc, argv);
}
}
launchctl_log(LOG_ERR, "%s: unknown subcommand \"%s\"", getprogname(), argv[0]);
return 1;
}
void
launchctl_log(int level, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (_launchctl_is_managed) {
vsyslog(level, fmt, ap);
} else {
char *buff = NULL;
(void)vasprintf(&buff, fmt, ap);
FILE *where = stdout;
if (level < LOG_NOTICE) {
where = stderr;
}
fprintf(where, "%s\n", buff);
free(buff);
}
va_end(ap);
}
void
launchctl_log_CFString(int level, CFStringRef string)
{
char *buff = malloc(4096);
(void)CFStringGetCString(string, buff, 4096, kCFStringEncodingUTF8);
launchctl_log(level, "%s", buff);
free(buff);
}
void
read_launchd_conf(void)
{
#if !TARGET_OS_EMBEDDED
char s[1000], *c, *av[100];
const char *file;
size_t len;
int i;
FILE *f;
if (getppid() == 1) {
file = "/etc/launchd.conf";
} else {
file = "/etc/launchd-user.conf";
}
if (!(f = fopen(file, "r"))) {
return;
}
while ((c = fgets(s, (int) sizeof s, f))) {
len = strlen(c);
if (len && c[len - 1] == '\n') {
c[len - 1] = '\0';
}
i = 0;
while ((av[i] = strsep(&c, " \t"))) {
if (*(av[i]) != '\0') {
i++;
}
}
if (i > 0) {
demux_cmd(i, av);
}
}
fclose(f);
#endif // !TARGET_OS_EMBEDDED
}
static CFPropertyListRef
CFPropertyListCreateFromFile(CFURLRef plistURL)
{
CFReadStreamRef plistReadStream = CFReadStreamCreateWithFile(NULL, plistURL);
CFErrorRef streamErr = NULL;
if (!CFReadStreamOpen(plistReadStream)) {
streamErr = CFReadStreamCopyError(plistReadStream);
CFStringRef errString = CFErrorCopyDescription(streamErr);
launchctl_log_CFString(LOG_ERR, errString);
CFRelease(errString);
CFRelease(streamErr);
}
CFPropertyListRef plist = NULL;
if (plistReadStream) {
CFStringRef errString = NULL;
CFPropertyListFormat plistFormat = 0;
plist = CFPropertyListCreateFromStream(NULL, plistReadStream, 0, kCFPropertyListImmutable, &plistFormat, &errString);
if (!plist) {
launchctl_log_CFString(LOG_ERR, errString);
CFRelease(errString);
}
}
CFReadStreamClose(plistReadStream);
CFRelease(plistReadStream);
return plist;
}
int
unsetenv_cmd(int argc, char *const argv[])
{
launch_data_t resp, tmp, msg;
if (argc != 2) {
launchctl_log(LOG_ERR, "%s usage: unsetenv <key>", getprogname());
return 1;
}
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
tmp = launch_data_new_string(argv[1]);
launch_data_dict_insert(msg, tmp, LAUNCH_KEY_UNSETUSERENVIRONMENT);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp) {
launch_data_free(resp);
} else {
launchctl_log(LOG_ERR, "launch_msg(\"%s\"): %s", LAUNCH_KEY_UNSETUSERENVIRONMENT, strerror(errno));
}
return 0;
}
int
setenv_cmd(int argc, char *const argv[])
{
launch_data_t resp, tmp, tmpv, msg;
if (argc != 3) {
launchctl_log(LOG_ERR, "%s usage: setenv <key> <value>", getprogname());
return 1;
}
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
tmp = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
tmpv = launch_data_new_string(argv[2]);
launch_data_dict_insert(tmp, tmpv, argv[1]);
launch_data_dict_insert(msg, tmp, LAUNCH_KEY_SETUSERENVIRONMENT);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp) {
launch_data_free(resp);
} else {
launchctl_log(LOG_ERR, "launch_msg(\"%s\"): %s", LAUNCH_KEY_SETUSERENVIRONMENT, strerror(errno));
}
return 0;
}
void
print_launchd_env(launch_data_t obj, const char *key, void *context)
{
bool *is_csh = context;
if (*is_csh) {
launchctl_log(LOG_NOTICE, "setenv %s \"%s\";", key, launch_data_get_string(obj));
} else {
launchctl_log(LOG_NOTICE, "%s=\"%s\"; export %s;", key, launch_data_get_string(obj), key);
}
}
void
print_key_value(launch_data_t obj, const char *key, void *context)
{
const char *k = context;
if (!strcmp(key, k)) {
launchctl_log(LOG_NOTICE, "%s", launch_data_get_string(obj));
}
}
int
getenv_and_export_cmd(int argc, char *const argv[])
{
launch_data_t resp;
bool is_csh = false;
char *k;
if (!strcmp(argv[0], "export")) {
char *s = getenv("SHELL");
if (s) {
is_csh = strstr(s, "csh") ? true : false;
}
} else if (argc != 2) {
launchctl_log(LOG_ERR, "%s usage: getenv <key>", getprogname());
return 1;
}
k = argv[1];
if (vproc_swap_complex(NULL, VPROC_GSK_ENVIRONMENT, NULL, &resp) == NULL) {
if (!strcmp(argv[0], "export")) {
launch_data_dict_iterate(resp, print_launchd_env, &is_csh);
} else {
launch_data_dict_iterate(resp, print_key_value, k);
}
launch_data_free(resp);
return 0;
} else {
return 1;
}
return 0;
}
int
wait4debugger_cmd(int argc, char * const argv[])
{
if (argc != 3) {
launchctl_log(LOG_ERR, "%s usage: debug <label> <value>", argv[0]);
return 1;
}
int result = 1;
int64_t inval = 0;
if (strncmp(argv[2], "true", sizeof("true")) == 0) {
inval = 1;
} else if (strncmp(argv[2], "false", sizeof("false")) != 0) {
inval = atoi(argv[2]);
inval &= 1;
}
vproc_t vp = vprocmgr_lookup_vproc(argv[1]);
if (vp) {
vproc_err_t verr = vproc_swap_integer(vp, VPROC_GSK_WAITFORDEBUGGER, &inval, NULL);
if (verr) {
launchctl_log(LOG_ERR, "Failed to set WaitForDebugger flag on %s.", argv[1]);
} else {
result = 0;
}
vproc_release(vp);
}
return result;
}
void
unloadjob(launch_data_t job)
{
launch_data_t tmps;
tmps = launch_data_dict_lookup(job, LAUNCH_JOBKEY_LABEL);
if (!tmps) {
launchctl_log(LOG_ERR, "%s: Error: Missing Key: %s", getprogname(), LAUNCH_JOBKEY_LABEL);
return;
}
if (_vproc_send_signal_by_label(launch_data_get_string(tmps), VPROC_MAGIC_UNLOAD_SIGNAL) != NULL) {
launchctl_log(LOG_ERR, "%s: Error unloading: %s", getprogname(), launch_data_get_string(tmps));
}
}
#if READ_JETSAM_DEFAULTS
static CFDictionaryRef
read_jetsam_defaults_from_cache(void) {
CFPropertyListRef cache = GetPropertyListFromCache();
CFPropertyListRef defaults = NULL;
const void **keys = 0;
CFIndex count, i;
if (!cache) {
return NULL;
}
CFPropertyListRef cachefiles = CFDictionaryGetValue(cache, CFSTR(XPC_PLIST_CACHE_KEY));
if (!cachefiles) {
return NULL;
}
count = CFDictionaryGetCount(cachefiles);
keys = (const void **)malloc(sizeof(void *) * count);
if (!keys) {
return NULL;
}
CFDictionaryGetKeysAndValues(cachefiles, keys, NULL);
for (i = 0; i < count; i++) {
CFStringRef key = (CFStringRef)keys[i];
CFIndex key_length = CFStringGetLength(key);
if (key_length <= (CFIndex)(JETSAM_PROP_DIR_LENGTH + JETSAM_PROP_PREFIX_LENGTH + JETSAM_PROP_SUFFIX_LENGTH + 1)) {
continue;
}
if (CFStringCompareWithOptions(key, CFSTR(JETSAM_PROP_DIR "/" JETSAM_PROP_PREFIX),
CFRangeMake(0, JETSAM_PROP_DIR_LENGTH + JETSAM_PROP_PREFIX_LENGTH + 1), 0)) {
continue;
}
if (CFStringCompareWithOptions(key, CFSTR(JETSAM_PROP_SUFFIX),
CFRangeMake(key_length - JETSAM_PROP_SUFFIX_LENGTH, JETSAM_PROP_SUFFIX_LENGTH), 0)) {
continue;
}
defaults = CFDictionaryGetValue(cachefiles, key);
break;
}
free(keys);
return defaults;
}
static CFDictionaryRef
read_jetsam_defaults_from_file(void) {
DIR *dirp;
struct dirent *dp;
CFDictionaryRef defaults = NULL;
dirp = opendir(JETSAM_PROP_DIR);
while ((dp = readdir(dirp)) != NULL) {
char *fullpath;
if (dp->d_namlen <= (JETSAM_PROP_PREFIX_LENGTH + JETSAM_PROP_SUFFIX_LENGTH)) {
continue;
}
if (strncmp(dp->d_name, JETSAM_PROP_PREFIX, JETSAM_PROP_PREFIX_LENGTH)) {
continue;
}
if (strncmp(dp->d_name + dp->d_namlen - JETSAM_PROP_SUFFIX_LENGTH, JETSAM_PROP_SUFFIX, JETSAM_PROP_SUFFIX_LENGTH)) {
continue;
}
if (-1 != asprintf(&fullpath, "%s/%s", JETSAM_PROP_DIR, dp->d_name)) {
defaults = (CFDictionaryRef)CreateMyPropertyListFromFile(fullpath);
free(fullpath);
}
break;
}
if (dirp) {
closedir(dirp);
}
return defaults;
}
static bool
submit_cached_defaults(void) {
launch_data_t msg, resp;
const void **keys = NULL;
int i;
if (_launchctl_jetsam_defaults_cached == NULL) {
return false;
}
CFMutableDictionaryRef payload_dict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFBooleanRef ID = kCFBooleanTrue;
CFDictionaryAddValue(payload_dict, CFSTR(LAUNCH_JOBKEY_DEFAULTS), ID);
CFMutableDictionaryRef defaults_dict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFDictionaryAddValue(payload_dict, CFSTR(LAUNCHD_JOB_DEFAULTS), defaults_dict);
CFIndex count = CFDictionaryGetCount(_launchctl_jetsam_defaults_cached);
keys = (const void **)malloc(sizeof(void *) * count);
if (!keys) {
goto exit;
}
CFDictionaryGetKeysAndValues(_launchctl_jetsam_defaults_cached, keys, NULL);
for (i = 0; i < count; i++) {
CFStringRef label = (CFStringRef)keys[i];
CFDictionaryRef job_defaults_dict = CFDictionaryGetValue(_launchctl_jetsam_defaults_cached, label);
if (!(job_defaults_dict && CFTypeCheck(job_defaults_dict, CFDictionary))) {
continue;
}
CFMutableDictionaryRef job_dict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFDictionaryAddValue(job_dict, CFSTR(LAUNCH_JOBKEY_JETSAMPROPERTIES), job_defaults_dict);
CFDictionaryAddValue(defaults_dict, label, job_dict);
CFRelease(job_dict);
}
launch_data_t ldp = CF2launch_data(payload_dict);
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(msg, ldp, LAUNCH_KEY_SUBMITJOB);
resp = launch_msg(msg);
launch_data_free(msg);
launch_data_free(resp);
exit:
CFRelease(defaults_dict);
CFRelease(payload_dict);
free(keys);
return true;
}
static boolean_t
read_jetsam_defaults(void)
{
const int v = 3;
CFDictionaryRef jetsam_defaults = NULL;
if (require_jobs_from_cache()) {
jetsam_defaults = read_jetsam_defaults_from_cache();
} else {
jetsam_defaults = read_jetsam_defaults_from_file();
}
if (NULL == jetsam_defaults) {
launchctl_log(LOG_NOTICE, "%s: no jetsam property file found", getprogname());
return false;
}
CFNumberRef defaults_vers = CFDictionaryGetValue(jetsam_defaults, CFSTR("Version"));
if (!(defaults_vers && CFTypeCheck(defaults_vers, CFNumber))) {
return false;
}
CFNumberRef supported_vers = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &v);
if (!(kCFCompareEqualTo == CFNumberCompare(defaults_vers, supported_vers, NULL ))) {
return false;
}
_launchctl_jetsam_defaults = CFDictionaryGetValue(jetsam_defaults, CFSTR(LAUNCHD_JOB_DEFAULTS));
if (!(_launchctl_jetsam_defaults && CFTypeCheck(_launchctl_jetsam_defaults, CFDictionary))) {
_launchctl_jetsam_defaults = NULL;
return false;
}
_launchctl_jetsam_defaults_cached = CFDictionaryGetValue(jetsam_defaults, CFSTR(LAUNCHD_JOB_DEFAULTS_CACHED));
if (!(_launchctl_jetsam_defaults_cached && CFTypeCheck(_launchctl_jetsam_defaults_cached, CFDictionary))) {
_launchctl_jetsam_defaults_cached = NULL;
return false;
}
submit_cached_defaults();
return true;
}
#endif
launch_data_t
read_plist_file(const char *file, bool editondisk, bool load)
{
CFPropertyListRef plist;
launch_data_t r = NULL;
#if TARGET_OS_EMBEDDED
if (require_jobs_from_cache()) {
plist = CreateMyPropertyListFromCachedFile(file);
} else {
plist = CreateMyPropertyListFromFile(file);
}
#else
plist = CreateMyPropertyListFromFile(file);
#endif
if (NULL == plist) {
launchctl_log(LOG_ERR, "%s: no plist was returned for: %s", getprogname(), file);
return NULL;
}
CFStringRef label = CFDictionaryGetValue(plist, CFSTR(LAUNCH_JOBKEY_LABEL));
if (!(label && CFTypeCheck(label, CFString))) {
return NULL;
}
if (_launchctl_overrides_db) {
CFDictionaryRef overrides = CFDictionaryGetValue(_launchctl_overrides_db, label);
if (overrides && CFTypeCheck(overrides, CFDictionary)) {
CFBooleanRef disabled = CFDictionaryGetValue(overrides, CFSTR(LAUNCH_JOBKEY_DISABLED));
if (disabled && CFTypeCheck(disabled, CFBoolean)) {
CFDictionarySetValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_DISABLED), disabled);
}
}
}
if (editondisk) {
if (_launchctl_overrides_db) {
CFMutableDictionaryRef job = (CFMutableDictionaryRef)CFDictionaryGetValue(_launchctl_overrides_db, label);
if (!job || !CFTypeCheck(job, CFDictionary)) {
job = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(_launchctl_overrides_db, label, job);
CFRelease(job);
}
CFDictionarySetValue(job, CFSTR(LAUNCH_JOBKEY_DISABLED), load ? kCFBooleanFalse : kCFBooleanTrue);
CFDictionarySetValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_DISABLED), load ? kCFBooleanFalse : kCFBooleanTrue);
_launchctl_overrides_db_changed = true;
} else {
if (load) {
CFDictionaryRemoveValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_DISABLED));
} else {
CFDictionarySetValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_DISABLED), kCFBooleanTrue);
}
WriteMyPropertyListToFile(plist, file);
}
}
#if READ_JETSAM_DEFAULTS
if (_launchctl_jetsam_defaults) {
CFDictionaryRef job_defaults_dict = CFDictionaryGetValue(_launchctl_jetsam_defaults, label);
if (job_defaults_dict) {
CFDictionarySetValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_JETSAMPROPERTIES), job_defaults_dict);
}
} else {
long default_limit = 0;
CFMutableDictionaryRef job_defaults_dict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
CFNumberRef memory_limit = CFNumberCreate(kCFAllocatorDefault, kCFNumberLongType, &default_limit);
if (memory_limit) {
CFDictionaryAddValue(job_defaults_dict, CFSTR(LAUNCH_JOBKEY_JETSAMMEMORYLIMIT), memory_limit);
CFRelease(memory_limit);
}
CFDictionarySetValue((CFMutableDictionaryRef)plist, CFSTR(LAUNCH_JOBKEY_JETSAMPROPERTIES), job_defaults_dict);
CFRelease(job_defaults_dict);
}
#endif
r = CF2launch_data(plist);
CFRelease(plist);
return r;
}
static bool
sysctl_hw_streq(int mib_slot, const char *str)
{
char buf[1000];
size_t bufsz = sizeof(buf);
int mib[] = { CTL_HW, mib_slot };
if (sysctl(mib, 2, buf, &bufsz, NULL, 0) != -1) {
if (strcmp(buf, str) == 0) {
return true;
}
}
return false;
}
static void
limitloadtohardware_iterator(launch_data_t val, const char *key, void *ctx)
{
bool *result = ctx;
char name[128];
(void)snprintf(name, sizeof(name), "hw.%s", key);
int mib[2];
size_t sz = 2;
if (*result != true && os_assumes_zero(sysctlnametomib(name, mib, &sz)) == 0) {
if (launch_data_get_type(val) == LAUNCH_DATA_ARRAY) {
size_t c = launch_data_array_get_count(val);
size_t i = 0;
for (i = 0; i < c; i++) {
launch_data_t oai = launch_data_array_get_index(val, i);
if (sysctl_hw_streq(mib[1], launch_data_get_string(oai))) {
*result = true;
i = c;
}
}
}
}
}
void
readfile(const char *what, struct load_unload_state *lus)
{
char ourhostname[1024];
launch_data_t tmpd, tmps, thejob, tmpa;
bool job_disabled = false;
size_t i, c;
gethostname(ourhostname, sizeof(ourhostname));
if (NULL == (thejob = read_plist_file(what, lus->editondisk, lus->load))) {
launchctl_log(LOG_ERR, "%s: no plist was returned for: %s", getprogname(), what);
return;
}
if (NULL == launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LABEL)) {
launchctl_log(LOG_ERR, "%s: missing the Label key: %s", getprogname(), what);
goto out_bad;
}
if ((launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_PROGRAM) == NULL) &&
(launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_PROGRAMARGUMENTS) == NULL)) {
launchctl_log(LOG_ERR, "%s: neither a Program nor a ProgramArguments key was specified: %s", getprogname(), what);
goto out_bad;
}
if (NULL != (tmpa = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADFROMHOSTS))) {
c = launch_data_array_get_count(tmpa);
for (i = 0; i < c; i++) {
launch_data_t oai = launch_data_array_get_index(tmpa, i);
if (!strcasecmp(ourhostname, launch_data_get_string(oai))) {
goto out_bad;
}
}
}
if (NULL != (tmpa = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADTOHOSTS))) {
c = launch_data_array_get_count(tmpa);
for (i = 0; i < c; i++) {
launch_data_t oai = launch_data_array_get_index(tmpa, i);
if (!strcasecmp(ourhostname, launch_data_get_string(oai))) {
break;
}
}
if (i == c) {
goto out_bad;
}
}
if (NULL != (tmpd = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADTOHARDWARE))) {
bool result = false;
launch_data_dict_iterate(tmpd, limitloadtohardware_iterator, &result);
if (!result) {
goto out_bad;
}
}
if (NULL != (tmpd = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADFROMHARDWARE))) {
bool result = false;
launch_data_dict_iterate(tmpd, limitloadtohardware_iterator, &result);
if (result) {
goto out_bad;
}
}
if (!_launchctl_managername) {
if (vproc_swap_string(NULL, VPROC_GSK_MGR_NAME, NULL, &_launchctl_managername)) {
if (bootstrap_port) {
launchctl_log(LOG_ERR, "Could not obtain manager name: ppid/bootstrap: %d/0x%x", getppid(), bootstrap_port);
}
_launchctl_managername = "";
}
}
if (!lus->session_type) {
if (strcmp(_launchctl_managername, "Aqua") == 0) {
lus->session_type = "Aqua";
}
}
if (lus->session_type && !(tmpa = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADTOSESSIONTYPE))) {
tmpa = launch_data_new_string("Aqua");
launch_data_dict_insert(thejob, tmpa, LAUNCH_JOBKEY_LIMITLOADTOSESSIONTYPE);
}
if ((tmpa = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_LIMITLOADTOSESSIONTYPE))) {
const char *allowed_session;
bool skipjob = true;
if (!lus->session_type && launch_data_get_type(tmpa) == LAUNCH_DATA_STRING) {
if (strcasecmp("System", _launchctl_managername) == 0 && strcasecmp("System", launch_data_get_string(tmpa)) == 0) {
skipjob = false;
}
}
if (lus->session_type) switch (launch_data_get_type(tmpa)) {
case LAUNCH_DATA_ARRAY:
c = launch_data_array_get_count(tmpa);
for (i = 0; i < c; i++) {
tmps = launch_data_array_get_index(tmpa, i);
allowed_session = launch_data_get_string(tmps);
if (strcasecmp(lus->session_type, allowed_session) == 0) {
skipjob = false;
tmpa = launch_data_new_string(lus->session_type);
launch_data_dict_insert(thejob, tmpa, LAUNCH_JOBKEY_LIMITLOADTOSESSIONTYPE);
break;
}
}
break;
case LAUNCH_DATA_STRING:
allowed_session = launch_data_get_string(tmpa);
if (strcasecmp(lus->session_type, allowed_session) == 0) {
skipjob = false;
}
break;
default:
break;
}
if (skipjob) {
goto out_bad;
}
}
if ((tmpd = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_DISABLED))) {
job_disabled = job_disabled_logic(tmpd);
}
if (lus->forceload) {
job_disabled = false;
}
if (job_disabled && lus->load) {
goto out_bad;
}
if (_launchctl_system_bootstrap || _launchctl_peruser_bootstrap) {
uuid_t uuid;
uuid_clear(uuid);
launch_data_t lduuid = launch_data_new_opaque(uuid, sizeof(uuid_t));
launch_data_dict_insert(thejob, lduuid, LAUNCH_JOBKEY_SECURITYSESSIONUUID);
}
launch_data_array_append(lus->pass1, thejob);
if (_launchctl_verbose) {
launchctl_log(LOG_NOTICE, "Will load: %s", what);
}
return;
out_bad:
if (_launchctl_verbose) {
launchctl_log(LOG_NOTICE, "Ignored: %s", what);
}
launch_data_free(thejob);
}
static void
job_disabled_dict_logic(launch_data_t obj, const char *key, void *context)
{
bool *r = context;
if (launch_data_get_type(obj) != LAUNCH_DATA_STRING) {
return;
}
if (strcasecmp(key, LAUNCH_JOBKEY_DISABLED_MACHINETYPE) == 0) {
if (sysctl_hw_streq(HW_MACHINE, launch_data_get_string(obj))) {
*r = true;
}
} else if (strcasecmp(key, LAUNCH_JOBKEY_DISABLED_MODELNAME) == 0) {
if (sysctl_hw_streq(HW_MODEL, launch_data_get_string(obj))) {
*r = true;
}
}
}
bool
job_disabled_logic(launch_data_t obj)
{
bool r = false;
switch (launch_data_get_type(obj)) {
case LAUNCH_DATA_DICTIONARY:
launch_data_dict_iterate(obj, job_disabled_dict_logic, &r);
break;
case LAUNCH_DATA_BOOL:
r = launch_data_get_bool(obj);
break;
default:
break;
}
return r;
}
bool
path_goodness_check(const char *path, bool forceload)
{
struct stat sb;
if (stat(path, &sb) == -1) {
launchctl_log(LOG_ERR, "%s: Couldn't stat(\"%s\"): %s", getprogname(), path, strerror(errno));
return false;
}
if (forceload) {
return true;
}
if (sb.st_mode & (S_IWOTH|S_IWGRP)) {
launchctl_log(LOG_ERR, "%s: Dubious permissions on file (skipping): %s", getprogname(), path);
return false;
}
if (sb.st_uid != 0 && sb.st_uid != getuid()) {
launchctl_log(LOG_ERR, "%s: Dubious ownership on file (skipping): %s", getprogname(), path);
return false;
}
if (!(S_ISREG(sb.st_mode) || S_ISDIR(sb.st_mode))) {
launchctl_log(LOG_ERR, "%s: Dubious path. Not a regular file or directory (skipping): %s", getprogname(), path);
return false;
}
if ((!S_ISDIR(sb.st_mode)) && (fnmatch("*.plist", path, FNM_CASEFOLD) == FNM_NOMATCH)) {
launchctl_log(LOG_ERR, "%s: Dubious file. Not of type .plist (skipping): %s", getprogname(), path);
return false;
}
return true;
}
void
readpath(const char *what, struct load_unload_state *lus)
{
char buf[MAXPATHLEN];
struct stat sb;
struct dirent *de;
DIR *d;
if (!path_goodness_check(what, lus->forceload)) {
return;
}
if (stat(what, &sb) == -1) {
return;
}
if (S_ISREG(sb.st_mode)) {
readfile(what, lus);
} else if (S_ISDIR(sb.st_mode)) {
if ((d = opendir(what)) == NULL) {
launchctl_log(LOG_ERR, "%s: opendir() failed to open the directory", getprogname());
return;
}
while ((de = readdir(d))) {
if (de->d_name[0] == '.') {
continue;
}
snprintf(buf, sizeof(buf), "%s/%s", what, de->d_name);
if (!path_goodness_check(buf, lus->forceload)) {
continue;
}
readfile(buf, lus);
}
closedir(d);
}
}
void
insert_event(launch_data_t job, const char *stream, const char *key, launch_data_t event)
{
launch_data_t launchevents, streamdict;
launchevents = launch_data_dict_lookup(job, LAUNCH_JOBKEY_LAUNCHEVENTS);
if (launchevents == NULL) {
launchevents = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(job, launchevents, LAUNCH_JOBKEY_LAUNCHEVENTS);
}
streamdict = launch_data_dict_lookup(launchevents, stream);
if (streamdict == NULL) {
streamdict = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(launchevents, streamdict, stream);
}
launch_data_dict_insert(streamdict, event, key);
}
struct distill_context {
launch_data_t base;
launch_data_t newsockdict;
};
void
distill_jobs(launch_data_t jobs)
{
size_t i, c = launch_data_array_get_count(jobs);
launch_data_t job;
for (i = 0; i < c; i++) {
job = launch_data_array_get_index(jobs, i);
distill_config_file(job);
distill_fsevents(job);
}
}
void
distill_config_file(launch_data_t id_plist)
{
struct distill_context dc = { id_plist, NULL };
launch_data_t tmp;
if ((tmp = launch_data_dict_lookup(dc.base, LAUNCH_JOBKEY_SOCKETS))) {
dc.newsockdict = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_iterate(tmp, sock_dict_cb, &dc);
launch_data_dict_insert(dc.base, dc.newsockdict, LAUNCH_JOBKEY_SOCKETS);
}
}
void
sock_dict_cb(launch_data_t what, const char *key, void *context)
{
struct distill_context *dc = context;
launch_data_t fdarray = launch_data_alloc(LAUNCH_DATA_ARRAY);
launch_data_dict_insert(dc->newsockdict, fdarray, key);
if (launch_data_get_type(what) == LAUNCH_DATA_DICTIONARY) {
sock_dict_edit_entry(what, key, fdarray, dc->base);
} else if (launch_data_get_type(what) == LAUNCH_DATA_ARRAY) {
launch_data_t tmp;
size_t i;
for (i = 0; i < launch_data_array_get_count(what); i++) {
tmp = launch_data_array_get_index(what, i);
sock_dict_edit_entry(tmp, key, fdarray, dc->base);
}
}
}
void
sock_dict_edit_entry(launch_data_t tmp, const char *key, launch_data_t fdarray, launch_data_t thejob)
{
launch_data_t a, val;
int sfd, st = SOCK_STREAM;
bool passive = true;
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_TYPE))) {
if (!strcasecmp(launch_data_get_string(val), "stream")) {
st = SOCK_STREAM;
} else if (!strcasecmp(launch_data_get_string(val), "dgram")) {
st = SOCK_DGRAM;
} else if (!strcasecmp(launch_data_get_string(val), "seqpacket")) {
st = SOCK_SEQPACKET;
}
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_PASSIVE))) {
passive = launch_data_get_bool(val);
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_SECUREWITHKEY))) {
char secdir[] = LAUNCH_SECDIR, buf[1024];
launch_data_t uenv = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_USERENVIRONMENTVARIABLES);
if (NULL == uenv) {
uenv = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(thejob, uenv, LAUNCH_JOBKEY_USERENVIRONMENTVARIABLES);
}
mkdtemp(secdir);
sprintf(buf, "%s/%s", secdir, key);
a = launch_data_new_string(buf);
launch_data_dict_insert(tmp, a, LAUNCH_JOBSOCKETKEY_PATHNAME);
a = launch_data_new_string(buf);
launch_data_dict_insert(uenv, a, launch_data_get_string(val));
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_PATHNAME))) {
struct sockaddr_un sun;
mode_t sun_mode = 0;
mode_t oldmask;
bool setm = false;
memset(&sun, 0, sizeof(sun));
sun.sun_family = AF_UNIX;
strncpy(sun.sun_path, launch_data_get_string(val), sizeof(sun.sun_path));
if (posix_assumes_zero(sfd = _fd(socket(AF_UNIX, st, 0))) == -1) {
return;
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_PATHMODE))) {
sun_mode = (mode_t)launch_data_get_integer(val);
setm = true;
}
if (passive) {
if (unlink(sun.sun_path) == -1 && errno != ENOENT) {
close(sfd);
return;
}
oldmask = umask(S_IRWXG|S_IRWXO);
if (bind(sfd, (struct sockaddr *)&sun, (socklen_t) sizeof sun) == -1) {
close(sfd);
umask(oldmask);
return;
}
umask(oldmask);
if (setm) {
chmod(sun.sun_path, sun_mode);
}
if ((st == SOCK_STREAM || st == SOCK_SEQPACKET) && listen(sfd, -1) == -1) {
close(sfd);
return;
}
} else if (connect(sfd, (struct sockaddr *)&sun, (socklen_t) sizeof sun) == -1) {
close(sfd);
return;
}
val = launch_data_new_fd(sfd);
launch_data_array_append(fdarray, val);
} else {
launch_data_t rnames = NULL;
const char *node = NULL, *serv = NULL, *mgroup = NULL;
char servnbuf[50];
struct addrinfo hints, *res0, *res;
int gerr, sock_opt = 1;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = st;
if (passive) {
hints.ai_flags |= AI_PASSIVE;
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_NODENAME))) {
node = launch_data_get_string(val);
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_MULTICASTGROUP))) {
mgroup = launch_data_get_string(val);
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_SERVICENAME))) {
if (LAUNCH_DATA_INTEGER == launch_data_get_type(val)) {
sprintf(servnbuf, "%lld", launch_data_get_integer(val));
serv = servnbuf;
} else {
serv = launch_data_get_string(val);
}
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_FAMILY))) {
if (!strcasecmp("IPv4", launch_data_get_string(val))) {
hints.ai_family = AF_INET;
} else if (!strcasecmp("IPv6", launch_data_get_string(val))) {
hints.ai_family = AF_INET6;
}
}
if ((val = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_PROTOCOL))) {
if (!strcasecmp("TCP", launch_data_get_string(val))) {
hints.ai_protocol = IPPROTO_TCP;
} else if (!strcasecmp("UDP", launch_data_get_string(val))) {
hints.ai_protocol = IPPROTO_UDP;
}
}
if ((rnames = launch_data_dict_lookup(tmp, LAUNCH_JOBSOCKETKEY_BONJOUR))) {
if (LAUNCH_DATA_BOOL != launch_data_get_type(rnames) || launch_data_get_bool(rnames)) {
launch_data_t newevent;
char eventkey[100];
newevent = launch_data_copy(tmp);
snprintf(eventkey, sizeof(eventkey), "com.apple.launchd.%s", key);
insert_event(thejob, "com.apple.bonjour.registration", eventkey, newevent);
}
}
if ((gerr = getaddrinfo(node, serv, &hints, &res0)) != 0) {
launchctl_log(LOG_ERR, "getaddrinfo(): %s", gai_strerror(gerr));
return;
}
for (res = res0; res; res = res->ai_next) {
if ((sfd = _fd(socket(res->ai_family, res->ai_socktype, res->ai_protocol))) == -1) {
launchctl_log(LOG_ERR, "socket(): %s", strerror(errno));
return;
}
do_application_firewall_magic(sfd, thejob);
if (hints.ai_flags & AI_PASSIVE) {
if (AF_INET6 == res->ai_family && -1 == setsockopt(sfd, IPPROTO_IPV6, IPV6_V6ONLY,
(void *)&sock_opt, (socklen_t) sizeof sock_opt)) {
launchctl_log(LOG_ERR, "setsockopt(IPV6_V6ONLY): %m");
return;
}
if (mgroup) {
if (setsockopt(sfd, SOL_SOCKET, SO_REUSEPORT, (void *)&sock_opt, (socklen_t) sizeof sock_opt) == -1) {
launchctl_log(LOG_ERR, "setsockopt(SO_REUSEPORT): %s", strerror(errno));
return;
}
} else {
if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void *)&sock_opt, (socklen_t) sizeof sock_opt) == -1) {
launchctl_log(LOG_ERR, "setsockopt(SO_REUSEADDR): %s", strerror(errno));
return;
}
}
if (bind(sfd, res->ai_addr, res->ai_addrlen) == -1) {
launchctl_log(LOG_ERR, "bind(): %s", strerror(errno));
return;
}
if (getsockname(sfd, res->ai_addr, &res->ai_addrlen) == -1) {
launchctl_log(LOG_ERR, "getsockname(): %s", strerror(errno));
return;
}
if (mgroup) {
do_mgroup_join(sfd, res->ai_family, res->ai_socktype, res->ai_protocol, mgroup);
}
if ((res->ai_socktype == SOCK_STREAM || res->ai_socktype == SOCK_SEQPACKET) && listen(sfd, -1) == -1) {
launchctl_log(LOG_ERR, "listen(): %s", strerror(errno));
return;
}
} else {
if (connect(sfd, res->ai_addr, res->ai_addrlen) == -1) {
launchctl_log(LOG_ERR, "connect(): %s", strerror(errno));
return;
}
}
val = launch_data_new_fd(sfd);
launch_data_array_append(fdarray, val);
}
}
}
void
distill_fsevents(launch_data_t id_plist)
{
launch_data_t copy, newevent;
launch_data_t tmp, tmp2;
if ((tmp = launch_data_dict_lookup(id_plist, LAUNCH_JOBKEY_QUEUEDIRECTORIES))) {
copy = launch_data_copy(tmp);
(void)launch_data_dict_remove(id_plist, LAUNCH_JOBKEY_QUEUEDIRECTORIES);
newevent = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(newevent, copy, LAUNCH_JOBKEY_QUEUEDIRECTORIES);
insert_event(id_plist, "com.apple.fsevents.matching", "com.apple.launchd." LAUNCH_JOBKEY_QUEUEDIRECTORIES, newevent);
}
if ((tmp = launch_data_dict_lookup(id_plist, LAUNCH_JOBKEY_WATCHPATHS))) {
copy = launch_data_copy(tmp);
(void)launch_data_dict_remove(id_plist, LAUNCH_JOBKEY_WATCHPATHS);
newevent = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(newevent, copy, LAUNCH_JOBKEY_WATCHPATHS);
insert_event(id_plist, "com.apple.fsevents.matching", "com.apple.launchd." LAUNCH_JOBKEY_WATCHPATHS, newevent);
}
if ((tmp = launch_data_dict_lookup(id_plist, LAUNCH_JOBKEY_KEEPALIVE))) {
if ((tmp2 = launch_data_dict_lookup(tmp, LAUNCH_JOBKEY_KEEPALIVE_PATHSTATE))) {
copy = launch_data_copy(tmp2);
(void)launch_data_dict_remove(tmp, LAUNCH_JOBKEY_KEEPALIVE_PATHSTATE);
newevent = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(newevent, copy, LAUNCH_JOBKEY_KEEPALIVE_PATHSTATE);
insert_event(id_plist, "com.apple.fsevents.matching", "com.apple.launchd." LAUNCH_JOBKEY_KEEPALIVE_PATHSTATE, newevent);
}
}
}
void
do_mgroup_join(int fd, int family, int socktype, int protocol, const char *mgroup)
{
struct addrinfo hints, *res0, *res;
struct ip_mreq mreq;
struct ipv6_mreq m6req;
int gerr;
memset(&hints, 0, sizeof(hints));
hints.ai_flags |= AI_PASSIVE;
hints.ai_family = family;
hints.ai_socktype = socktype;
hints.ai_protocol = protocol;
if ((gerr = getaddrinfo(mgroup, NULL, &hints, &res0)) != 0) {
launchctl_log(LOG_ERR, "getaddrinfo(): %s", gai_strerror(gerr));
return;
}
for (res = res0; res; res = res->ai_next) {
if (AF_INET == family) {
memset(&mreq, 0, sizeof(mreq));
mreq.imr_multiaddr = ((struct sockaddr_in *)res->ai_addr)->sin_addr;
if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, (socklen_t) sizeof mreq) == -1) {
launchctl_log(LOG_ERR, "setsockopt(IP_ADD_MEMBERSHIP): %s", strerror(errno));
continue;
}
break;
} else if (AF_INET6 == family) {
memset(&m6req, 0, sizeof(m6req));
m6req.ipv6mr_multiaddr = ((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &m6req, (socklen_t) sizeof m6req) == -1) {
launchctl_log(LOG_ERR, "setsockopt(IPV6_JOIN_GROUP): %s", strerror(errno));
continue;
}
break;
} else {
launchctl_log(LOG_ERR, "unknown family during multicast group bind!");
break;
}
}
freeaddrinfo(res0);
}
#pragma mark XPC Cache
#if TARGET_OS_EMBEDDED
CFPropertyListRef
GetPropertyListFromCache(void)
{
static CFPropertyListRef propertyList;
CFDataRef cacheData;
CFErrorRef error;
if (!propertyList) {
uint8_t *data = NULL;
unsigned long sz = 0;
void *handle = dlopen(XPC_PLIST_CACHE, RTLD_NOW);
if (handle) {
void *fnptr = dlsym(handle, "__xpcd_cache");
if (fnptr) {
Dl_info image_info;
int rv = dladdr(fnptr, &image_info);
if (rv != 0) {
data = getsectiondata(image_info.dli_fbase, "__TEXT", "__xpcd_cache", &sz);
} else {
launchctl_log(LOG_ERR, "cache loading failed: failed to find address of __xpcd_cache symbol.");
}
} else {
launchctl_log(LOG_ERR, "cache loading failed: failed to find __xpcd_cache symbol in cache.");
}
} else {
launchctl_log(LOG_ERR, "cache loading failed: dlopen returned %s.", dlerror());
}
if (data) {
cacheData = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, data, sz, kCFAllocatorNull);
if (cacheData) {
propertyList = CFPropertyListCreateWithData(kCFAllocatorDefault, cacheData, kCFPropertyListMutableContainersAndLeaves, NULL, &error);
CFRelease(cacheData);
} else {
launchctl_log(LOG_ERR, "cache loading failed: unable to create data out of memory region.");
}
} else {
launchctl_log(LOG_ERR, "cache loading failed: no cache data found in __TEXT,__xpcd_cache segment.");
}
}
return propertyList;
}
CFPropertyListRef
CreateMyPropertyListFromCachedFile(const char *posixfile)
{
CFPropertyListRef cache = GetPropertyListFromCache();
CFPropertyListRef job = NULL;
if (cache) {
CFPropertyListRef jobs = CFDictionaryGetValue(cache, CFSTR(XPC_PLIST_CACHE_KEY));
if (jobs) {
CFStringRef key = CFStringCreateWithCStringNoCopy(kCFAllocatorDefault, posixfile, kCFStringEncodingUTF8, kCFAllocatorNull);
if (key) {
job = CFDictionaryGetValue(jobs, key);
CFRelease(key);
}
}
}
if (job) {
CFRetain(job);
}
return job;
}
bool
require_jobs_from_cache(void)
{
char buf[1024];
size_t len;
char *ptr;
unsigned long val;
bool cs_disabled = false;
len = sizeof(buf);
if (sysctlbyname("kern.bootargs", buf, &len, NULL, 0) == 0) {
ptr = strnstr(buf, "cs_enforcement_disable=", len);
if (ptr != NULL) {
val = strtoul(ptr + strlen("cs_enforcement_disable="), NULL, 10);
cs_disabled = (val != 0);
}
ptr = strnstr(buf, "launchctl_enforce_codesign=", len);
if (ptr != NULL) {
char *endptr = NULL;
char *startptr = ptr + strlen("launchctl_enforce_codesign=");
val = strtoul(startptr, &endptr, 10);
cs_disabled = (val == 0 && startptr != endptr);
}
}
return !cs_disabled;
}
#endif
#pragma mark File-based Property Lists
CFPropertyListRef
CreateMyPropertyListFromFile(const char *posixfile)
{
CFPropertyListRef propertyList;
CFStringRef errorString;
CFDataRef resourceData;
SInt32 errorCode;
CFURLRef fileURL;
fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8 *)posixfile, strlen(posixfile), false);
if (!fileURL) {
launchctl_log(LOG_ERR, "%s: CFURLCreateFromFileSystemRepresentation(%s) failed", getprogname(), posixfile);
}
if (!CFURLCreateDataAndPropertiesFromResource(kCFAllocatorDefault, fileURL, &resourceData, NULL, NULL, &errorCode)) {
launchctl_log(LOG_ERR, "%s: CFURLCreateDataAndPropertiesFromResource(%s) failed: %d", getprogname(), posixfile, (int)errorCode);
}
propertyList = CFPropertyListCreateFromXMLData(kCFAllocatorDefault, resourceData, kCFPropertyListMutableContainersAndLeaves, &errorString);
if (fileURL) {
CFRelease(fileURL);
}
if (resourceData) {
CFRelease(resourceData);
}
return propertyList;
}
void
WriteMyPropertyListToFile(CFPropertyListRef plist, const char *posixfile)
{
CFDataRef resourceData;
CFURLRef fileURL;
SInt32 errorCode;
fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8 *)posixfile, strlen(posixfile), false);
if (!fileURL) {
launchctl_log(LOG_ERR, "%s: CFURLCreateFromFileSystemRepresentation(%s) failed", getprogname(), posixfile);
}
resourceData = CFPropertyListCreateXMLData(kCFAllocatorDefault, plist);
if (resourceData == NULL) {
launchctl_log(LOG_ERR, "%s: CFPropertyListCreateXMLData(%s) failed", getprogname(), posixfile);
}
if (!CFURLWriteDataAndPropertiesToResource(fileURL, resourceData, NULL, &errorCode)) {
launchctl_log(LOG_ERR, "%s: CFURLWriteDataAndPropertiesToResource(%s) failed: %d", getprogname(), posixfile, (int)errorCode);
}
if (resourceData) {
CFRelease(resourceData);
}
}
static inline Boolean
_is_launch_data_t(launch_data_t obj)
{
Boolean result = true;
switch (launch_data_get_type(obj)) {
case LAUNCH_DATA_STRING : break;
case LAUNCH_DATA_INTEGER : break;
case LAUNCH_DATA_REAL : break;
case LAUNCH_DATA_BOOL : break;
case LAUNCH_DATA_ARRAY : break;
case LAUNCH_DATA_DICTIONARY : break;
case LAUNCH_DATA_FD : break;
case LAUNCH_DATA_MACHPORT : break;
default : result = false;
}
return result;
}
static void
_launch_data_iterate(launch_data_t obj, const char *key, CFMutableDictionaryRef dict)
{
if (obj && _is_launch_data_t(obj)) {
CFStringRef cfKey = CFStringCreateWithCString(NULL, key, kCFStringEncodingUTF8);
CFTypeRef cfVal = CFTypeCreateFromLaunchData(obj);
if (cfVal) {
CFDictionarySetValue(dict, cfKey, cfVal);
CFRelease(cfVal);
}
CFRelease(cfKey);
}
}
static CFTypeRef
CFTypeCreateFromLaunchData(launch_data_t obj)
{
CFTypeRef cfObj = NULL;
switch (launch_data_get_type(obj)) {
case LAUNCH_DATA_STRING: {
const char *str = launch_data_get_string(obj);
cfObj = CFStringCreateWithCString(NULL, str, kCFStringEncodingUTF8);
break;
}
case LAUNCH_DATA_INTEGER: {
long long integer = launch_data_get_integer(obj);
cfObj = CFNumberCreate(NULL, kCFNumberLongLongType, &integer);
break;
}
case LAUNCH_DATA_REAL: {
double real = launch_data_get_real(obj);
cfObj = CFNumberCreate(NULL, kCFNumberDoubleType, &real);
break;
}
case LAUNCH_DATA_BOOL: {
bool yesno = launch_data_get_bool(obj);
cfObj = yesno ? kCFBooleanTrue : kCFBooleanFalse;
break;
}
case LAUNCH_DATA_ARRAY: {
cfObj = (CFTypeRef)CFArrayCreateFromLaunchArray(obj);
break;
}
case LAUNCH_DATA_DICTIONARY: {
cfObj = (CFTypeRef)CFDictionaryCreateFromLaunchDictionary(obj);
break;
}
case LAUNCH_DATA_FD: {
int fd = launch_data_get_fd(obj);
cfObj = CFNumberCreate(NULL, kCFNumberIntType, &fd);
break;
}
case LAUNCH_DATA_MACHPORT: {
mach_port_t port = launch_data_get_machport(obj);
cfObj = CFNumberCreate(NULL, kCFNumberIntType, &port);
break;
}
default:
break;
}
return cfObj;
}
#pragma mark CFArray
static CFArrayRef
CFArrayCreateFromLaunchArray(launch_data_t arr)
{
CFArrayRef result = NULL;
CFMutableArrayRef mutResult = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
if (launch_data_get_type(arr) == LAUNCH_DATA_ARRAY) {
unsigned int count = launch_data_array_get_count(arr);
unsigned int i = 0;
for (i = 0; i < count; i++) {
launch_data_t launch_obj = launch_data_array_get_index(arr, i);
CFTypeRef obj = CFTypeCreateFromLaunchData(launch_obj);
if (obj) {
CFArrayAppendValue(mutResult, obj);
CFRelease(obj);
}
}
result = CFArrayCreateCopy(NULL, mutResult);
}
if (mutResult) {
CFRelease(mutResult);
}
return result;
}
#pragma mark CFDictionary / CFPropertyList
static CFDictionaryRef
CFDictionaryCreateFromLaunchDictionary(launch_data_t dict)
{
CFDictionaryRef result = NULL;
if (launch_data_get_type(dict) == LAUNCH_DATA_DICTIONARY) {
CFMutableDictionaryRef mutResult = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
launch_data_dict_iterate(dict, (void (*)(launch_data_t, const char *, void *))_launch_data_iterate, mutResult);
result = CFDictionaryCreateCopy(NULL, mutResult);
CFRelease(mutResult);
}
return result;
}
void
myCFDictionaryApplyFunction(const void *key, const void *value, void *context)
{
launch_data_t ik, iw, where = context;
ik = CF2launch_data(key);
iw = CF2launch_data(value);
launch_data_dict_insert(where, iw, launch_data_get_string(ik));
launch_data_free(ik);
}
launch_data_t
CF2launch_data(CFTypeRef cfr)
{
launch_data_t r;
CFTypeID cft = CFGetTypeID(cfr);
if (cft == CFStringGetTypeID()) {
char buf[4096];
CFStringGetCString(cfr, buf, sizeof(buf), kCFStringEncodingUTF8);
r = launch_data_alloc(LAUNCH_DATA_STRING);
launch_data_set_string(r, buf);
} else if (cft == CFBooleanGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_BOOL);
launch_data_set_bool(r, CFBooleanGetValue(cfr));
} else if (cft == CFArrayGetTypeID()) {
CFIndex i, ac = CFArrayGetCount(cfr);
r = launch_data_alloc(LAUNCH_DATA_ARRAY);
for (i = 0; i < ac; i++) {
CFTypeRef v = CFArrayGetValueAtIndex(cfr, i);
if (v) {
launch_data_t iv = CF2launch_data(v);
launch_data_array_set_index(r, iv, i);
}
}
} else if (cft == CFDictionaryGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
CFDictionaryApplyFunction(cfr, myCFDictionaryApplyFunction, r);
} else if (cft == CFDataGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_OPAQUE);
launch_data_set_opaque(r, CFDataGetBytePtr(cfr), CFDataGetLength(cfr));
} else if (cft == CFNumberGetTypeID()) {
long long n;
double d;
CFNumberType cfnt = CFNumberGetType(cfr);
switch (cfnt) {
case kCFNumberSInt8Type:
case kCFNumberSInt16Type:
case kCFNumberSInt32Type:
case kCFNumberSInt64Type:
case kCFNumberCharType:
case kCFNumberShortType:
case kCFNumberIntType:
case kCFNumberLongType:
case kCFNumberLongLongType:
CFNumberGetValue(cfr, kCFNumberLongLongType, &n);
r = launch_data_alloc(LAUNCH_DATA_INTEGER);
launch_data_set_integer(r, n);
break;
case kCFNumberFloat32Type:
case kCFNumberFloat64Type:
case kCFNumberFloatType:
case kCFNumberDoubleType:
CFNumberGetValue(cfr, kCFNumberDoubleType, &d);
r = launch_data_alloc(LAUNCH_DATA_REAL);
launch_data_set_real(r, d);
break;
default:
r = NULL;
break;
}
} else {
r = NULL;
}
return r;
}
int
help_cmd(int argc, char *const argv[])
{
size_t i, l, cmdwidth = 0;
int level = LOG_NOTICE;
if (argc == 0 || argv == NULL) {
level = LOG_ERR;
}
launchctl_log(level, "usage: %s <subcommand>", getprogname());
for (i = 0; i < (sizeof cmds / sizeof cmds[0]); i++) {
l = strlen(cmds[i].name);
if (l > cmdwidth) {
cmdwidth = l;
}
}
for (i = 0; i < (sizeof cmds / sizeof cmds[0]); i++) {
launchctl_log(level, "\t%-*s\t%s", (int)cmdwidth, cmds[i].name, cmds[i].desc);
}
return 0;
}
int
exit_cmd(int argc __attribute__((unused)), char *const argv[] __attribute__((unused)))
{
exit(0);
}
int
_fd(int fd)
{
if (fd >= 0)
fcntl(fd, F_SETFD, 1);
return fd;
}
void
do_single_user_mode(bool sflag)
{
if (sflag) {
while (!do_single_user_mode2()) {
sleep(1);
}
}
}
bool
do_single_user_mode2(void)
{
bool runcom_fsck = true;
int wstatus;
int fd;
pid_t p;
switch ((p = fork())) {
case -1:
syslog(LOG_ERR, "can't fork single-user shell, trying again: %m");
return false;
case 0:
break;
default:
(void)os_assumes_zero(waitpid(p, &wstatus, 0));
if (WIFEXITED(wstatus)) {
if (WEXITSTATUS(wstatus) == EXIT_SUCCESS) {
return true;
} else {
launchctl_log(LOG_NOTICE, "single user mode: exit status: %d", WEXITSTATUS(wstatus));
}
} else {
launchctl_log(LOG_NOTICE, "single user mode shell: %s", strsignal(WTERMSIG(wstatus)));
}
return false;
}
revoke(_PATH_CONSOLE);
if (posix_assumes_zero((fd = open(_PATH_CONSOLE, O_RDWR))) == -1) {
_exit(EXIT_FAILURE);
}
if (posix_assumes_zero(login_tty(fd)) == -1) {
_exit(EXIT_FAILURE);
}
mach_timespec_t wt = { 5, 0 };
IOKitWaitQuiet(kIOMasterPortDefault, &wt);
setenv("TERM", "vt100", 1);
if (runcom_fsck) {
fprintf(stdout, "Singleuser boot -- fsck not done\n");
fprintf(stdout, "Root device is mounted read-only\n");
fprintf(stdout, "If you want to make modifications to files:\n");
fprintf(stdout, "\t/sbin/fsck -fy\n\t/sbin/mount -uw /\n");
fprintf(stdout, "If you wish to boot the system:\n");
fprintf(stdout, "\texit\n");
fflush(stdout);
}
execl(_PATH_BSHELL, "-sh", NULL);
fprintf(stderr, "can't exec %s for single user: %m\n", _PATH_BSHELL);
_exit(EXIT_FAILURE);
}
void
do_crash_debug_mode(void)
{
while (!do_crash_debug_mode2()) {
sleep(1);
}
}
bool
do_crash_debug_mode2(void)
{
int wstatus;
int fd;
pid_t p;
switch ((p = fork())) {
case -1:
syslog(LOG_ERR, "can't fork crash debug shell, trying again: %m");
return false;
case 0:
break;
default:
(void)os_assumes_zero(waitpid(p, &wstatus, 0));
if (WIFEXITED(wstatus)) {
if (WEXITSTATUS(wstatus) == EXIT_SUCCESS) {
return true;
} else {
launchctl_log(LOG_NOTICE, "crash debug mode: exit status: %d", WEXITSTATUS(wstatus));
}
} else {
launchctl_log(LOG_NOTICE, "crash debug mode shell: %s", strsignal(WTERMSIG(wstatus)));
}
return false;
}
revoke(_PATH_CONSOLE);
if (posix_assumes_zero((fd = open(_PATH_CONSOLE, O_RDWR))) == -1) {
_exit(EXIT_FAILURE);
}
if (posix_assumes_zero(login_tty(fd)) == -1) {
_exit(EXIT_FAILURE);
}
mach_timespec_t wt = { 5, 0 };
IOKitWaitQuiet(kIOMasterPortDefault, &wt);
setenv("TERM", "vt100", 1);
fprintf(stdout, "Entering boot-time debugging mode...\n");
fprintf(stdout, "The system bootstrapper process has crashed. To debug:\n");
fprintf(stdout, "\tgdb attach %i\n", getppid());
fprintf(stdout, "You can try booting the system with:\n");
fprintf(stdout, "\tlaunchctl load -S System -D All\n");
execl(_PATH_BSHELL, "-sh", NULL);
fprintf(stderr, "can't exec %s for crash debug: %m\n", _PATH_BSHELL);
_exit(EXIT_FAILURE);
}
static void
exit_at_sigterm(int sig)
{
if (sig == SIGTERM) {
_exit(EXIT_SUCCESS);
}
}
void
fatal_signal_handler(int sig __attribute__((unused)), siginfo_t *si __attribute__((unused)), void *uap __attribute__((unused)))
{
do_crash_debug_mode();
}
void
handle_system_bootstrapper_crashes_separately(void)
{
if (!_launchctl_startup_debugging) {
return;
}
fprintf(stdout, "com.apple.launchctl.System\t\t\t*** Handling system bootstrapper crashes separately. ***\n");
struct sigaction fsa;
fsa.sa_sigaction = fatal_signal_handler;
fsa.sa_flags = SA_SIGINFO;
sigemptyset(&fsa.sa_mask);
(void)posix_assumes_zero(sigaction(SIGILL, &fsa, NULL));
(void)posix_assumes_zero(sigaction(SIGFPE, &fsa, NULL));
(void)posix_assumes_zero(sigaction(SIGBUS, &fsa, NULL));
(void)posix_assumes_zero(sigaction(SIGTRAP, &fsa, NULL));
(void)posix_assumes_zero(sigaction(SIGABRT, &fsa, NULL));
}
#if TARGET_OS_EMBEDDED
static void
init_data_protection(void)
{
if (path_check("/usr/libexec/init_data_protection")) {
const char *init_cp[] = { "/usr/libexec/init_data_protection", NULL };
if (fwexec(init_cp, NULL) == -1) {
launchctl_log(LOG_ERR, "Couldn't init content protection: %d: %s", errno, strerror(errno));
(void)reboot(RB_HALT);
_exit(EXIT_FAILURE);
}
}
}
#endif
static void
system_specific_bootstrap(bool sflag)
{
int hnmib[] = { CTL_KERN, KERN_HOSTNAME };
struct kevent kev;
int kq;
#if HAVE_LIBAUDITD
launch_data_t lda, ldb;
#endif
handle_system_bootstrapper_crashes_separately();
si_search_module_set_flags("mdns", 1);
si_search_module_set_flags("ds", 1);
(void)setenv(LAUNCH_ENV_BOOTSTRAPPINGSYSTEM, "1", 1);
do_sysversion_sysctl();
do_single_user_mode(sflag);
(void)posix_assumes_zero(kq = kqueue());
EV_SET(&kev, 0, EVFILT_TIMER, EV_ADD|EV_ONESHOT, NOTE_SECONDS, 60, 0);
(void)posix_assumes_zero(kevent(kq, &kev, 1, NULL, 0, NULL));
__OS_COMPILETIME_ASSERT__(SIG_ERR == (typeof(SIG_ERR))-1);
EV_SET(&kev, SIGTERM, EVFILT_SIGNAL, EV_ADD, 0, 0, 0);
(void)posix_assumes_zero(kevent(kq, &kev, 1, NULL, 0, NULL));
(void)posix_assumes_zero(signal(SIGTERM, SIG_IGN));
(void)posix_assumes_zero(sysctl(hnmib, 2, NULL, NULL, "localhost", sizeof("localhost")));
loopback_setup_ipv4();
loopback_setup_ipv6();
apply_sysctls_from_file("/etc/sysctl.conf");
#if TARGET_OS_EMBEDDED
if (path_check("/etc/rc.boot")) {
const char *rcboot_tool[] = { "/etc/rc.boot", NULL };
(void)posix_assumes_zero(signal(SIGTERM, exit_at_sigterm));
(void)posix_assumes_zero(fwexec(rcboot_tool, NULL));
}
#endif
if (path_check("/etc/rc.cdrom")) {
const char *rccdrom_tool[] = { _PATH_BSHELL, "/etc/rc.cdrom", "multiuser", NULL };
(void)posix_assumes_zero(signal(SIGTERM, exit_at_sigterm));
(void)posix_assumes_zero(fwexec(rccdrom_tool, NULL));
(void)reboot(RB_HALT);
_exit(EXIT_FAILURE);
} else if (is_netboot()) {
const char *rcnetboot_tool[] = { _PATH_BSHELL, "/etc/rc.netboot", "init", NULL };
if (posix_assumes_zero(fwexec(rcnetboot_tool, NULL)) == -1) {
(void)reboot(RB_HALT);
_exit(EXIT_FAILURE);
}
} else {
do_potential_fsck();
}
#if TARGET_OS_EMBEDDED
if (path_check("/usr/libexec/tzinit")) {
const char *tzinit_tool[] = { "/usr/libexec/tzinit", NULL };
(void)posix_assumes_zero(fwexec(tzinit_tool, NULL));
}
#endif
#if TARGET_OS_EMBEDDED
if (path_check("/usr/libexec/FinishRestoreFromBackup")) {
const char *finish_restore[] = { "/usr/libexec/FinishRestoreFromBackup", NULL };
if (fwexec(finish_restore, NULL) == -1) {
launchctl_log(LOG_ERR, "Couldn't finish restore: %d: %s", errno, strerror(errno));
(void)reboot(RB_HALT);
_exit(EXIT_FAILURE);
}
}
#endif
if (path_check("/usr/libexec/cc_fips_test")) {
const char *fips_tool[] = { "/usr/libexec/cc_fips_test", "-P", NULL };
if (fwexec(fips_tool, NULL) == -1) {
launchctl_log(LOG_ERR, "FIPS self check failure: %d: %s", errno, strerror(errno));
(void)reboot(RB_HALT);
_exit(EXIT_FAILURE);
}
}
if (path_check("/etc/rc.server")) {
const char *rcserver_tool[] = { _PATH_BSHELL, "/etc/rc.server", NULL };
(void)posix_assumes_zero(fwexec(rcserver_tool, NULL));
}
read_launchd_conf();
if (path_check("/var/account/acct")) {
(void)posix_assumes_zero(acct("/var/account/acct"));
}
#if !TARGET_OS_EMBEDDED
if (path_check("/etc/fstab")) {
const char *mount_tool[] = { "mount", "-vat", "nonfs", NULL };
(void)posix_assumes_zero(fwexec(mount_tool, NULL));
}
#endif
if (path_check("/etc/rc.installer_cleanup")) {
const char *rccleanup_tool[] = { _PATH_BSHELL, "/etc/rc.installer_cleanup", "multiuser", NULL };
(void)posix_assumes_zero(fwexec(rccleanup_tool, NULL));
}
if (path_check("/etc/rc.deferred_install")) {
int status = 0;
const char *deferredinstall_tool[] = { _PATH_BSHELL, "/etc/rc.deferred_install", NULL };
if (posix_assumes_zero(fwexec(deferredinstall_tool, &status)) == 0) {
if (WEXITSTATUS(status) == EXIT_SUCCESS) {
if (_launchctl_apple_internal) {
launchctl_log(LOG_NOTICE, "Deferred install script completed successfully. Rebooting in 3 seconds...");
sleep(3);
}
(void)remove(deferredinstall_tool[1]);
(void)reboot(RB_AUTOBOOT);
exit(EXIT_FAILURE);
} else {
launchctl_log(LOG_NOTICE, "Deferred install script exited with status %i. Continuing boot and hoping it'll work...", WEXITSTATUS(status));
(void)remove(deferredinstall_tool[1]);
}
}
}
empty_dir(_PATH_VARRUN, NULL);
empty_dir(_PATH_TMP, NULL);
(void)remove(_PATH_NOLOGIN);
if (path_check("/usr/libexec/dirhelper")) {
const char *dirhelper_tool[] = { "/usr/libexec/dirhelper", "-machineBoot", NULL };
(void)posix_assumes_zero(fwexec(dirhelper_tool, NULL));
}
(void)posix_assumes_zero(touch_file(_PATH_UTMPX, DEFFILEMODE));
#if !TARGET_OS_EMBEDDED
(void)posix_assumes_zero(touch_file(_PATH_VARRUN "/.systemStarterRunning", DEFFILEMODE));
#endif
#if HAVE_LIBAUDITD
if ((lda = read_plist_file(AUDITD_PLIST_FILE, false, false)) != NULL && ((ldb = launch_data_dict_lookup(lda, LAUNCH_JOBKEY_DISABLED)) == NULL || job_disabled_logic(ldb) == false)) {
(void)os_assumes_zero(audit_quick_start());
launch_data_free(lda);
}
#else
if (path_check("/etc/security/rc.audit")) {
const char *audit_tool[] = { _PATH_BSHELL, "/etc/security/rc.audit", NULL };
(void)posix_assumes_zero(fwexec(audit_tool, NULL));
}
#endif
#if HAVE_SYSTEMSTATS
systemstats_boot();
#endif
do_BootCache_magic(BOOTCACHE_START);
preheat_page_cache_hack();
_vproc_set_global_on_demand(true);
char *load_launchd_items[] = { "load", "-D", "all", NULL };
int load_launchd_items_cnt = 3;
if (is_safeboot()) {
load_launchd_items[2] = "system";
}
(void)posix_assumes_zero(load_and_unload_cmd(load_launchd_items_cnt, load_launchd_items));
if (!_launchctl_apple_internal) {
mach_timespec_t w = { 5, 0 };
IOKitWaitQuiet(kIOMasterPortDefault, &w);
}
do_BootCache_magic(BOOTCACHE_TAG);
do_bootroot_magic();
_vproc_set_global_on_demand(false);
(void)posix_assumes_zero(kevent(kq, NULL, 0, &kev, 1, NULL));
(void)close(kq);
}
void
do_BootCache_magic(BootCache_action_t what)
{
const char *bcc_tool[] = { "/usr/sbin/BootCacheControl", NULL, NULL };
if (is_safeboot() || !path_check(bcc_tool[0])) {
return;
}
switch (what) {
case BOOTCACHE_START:
bcc_tool[1] = "start";
break;
case BOOTCACHE_TAG:
bcc_tool[1] = "tag";
break;
case BOOTCACHE_STOP:
bcc_tool[1] = "stop";
break;
}
fwexec(bcc_tool, NULL);
}
int
bootstrap_cmd(int argc, char *const argv[])
{
char *session = NULL;
bool sflag = false;
int ch;
while ((ch = getopt(argc, argv, "sS:")) != -1) {
switch (ch) {
case 's':
sflag = true;
break;
case 'S':
session = optarg;
break;
case '?':
default:
break;
}
}
optind = 1;
optreset = 1;
if (!session) {
launchctl_log(LOG_ERR, "usage: %s bootstrap [-s] -S <session-type>", getprogname());
return 1;
}
if (strcasecmp(session, "System") == 0) {
_launchctl_system_bootstrap = true;
system_specific_bootstrap(sflag);
} else {
char *load_launchd_items[] = {
"load",
"-S",
session,
"-D",
"all",
NULL,
NULL,
NULL,
};
size_t the_argc = 5;
bool bootstrap_login_items = false;
if (strcasecmp(session, VPROCMGR_SESSION_AQUA) == 0) {
bootstrap_login_items = true;
} else if (strcasecmp(session, VPROCMGR_SESSION_BACKGROUND) == 0
|| strcasecmp(session, VPROCMGR_SESSION_LOGINWINDOW) == 0) {
load_launchd_items[4] = "system";
if (!is_safeboot()) {
load_launchd_items[5] = "-D";
load_launchd_items[6] = "local";
the_argc += 2;
}
if (strcasecmp(session, VPROCMGR_SESSION_BACKGROUND) == 0) {
_launchctl_peruser_bootstrap = true;
read_launchd_conf();
}
}
if (is_safeboot()) {
load_launchd_items[4] = "system";
}
int result = load_and_unload_cmd(the_argc, load_launchd_items);
if (result) {
syslog(LOG_ERR, "Could not bootstrap session: %s", session);
return 1;
}
int64_t junk = 0;
vproc_err_t verr = vproc_swap_integer(NULL, VPROC_GSK_WEIRD_BOOTSTRAP, &junk, NULL);
if (!verr) {
#if !TARGET_OS_EMBEDDED
if (bootstrap_login_items) {
void *smf = dlopen("/System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManagement", 0);
if (smf) {
void (*_SMLoginItemBootstrapItemsFunc)(void) = dlsym(smf, "_SMLoginItemBootstrapItems");
if (_SMLoginItemBootstrapItemsFunc) {
_SMLoginItemBootstrapItemsFunc();
} else {
launchctl_log(LOG_ERR, "Could not find login item bootstrap function. LoginItems will be unavailable.");
}
} else {
launchctl_log(LOG_ERR, "Failed to open ServiceManagement framework. LoginItems will be unavailable.");
}
}
#endif
} else if (bootstrap_login_items) {
launchctl_log(LOG_ERR, "Failed to unset weird bootstrap. LoginItems will be unavailable.");
}
}
return 0;
}
int
load_and_unload_cmd(int argc, char *const argv[])
{
NSSearchPathEnumerationState es = 0;
char nspath[PATH_MAX * 2];
bool badopts = false;
struct load_unload_state lus;
size_t i;
int ch;
memset(&lus, 0, sizeof(lus));
if (strcmp(argv[0], "load") == 0) {
lus.load = true;
}
while ((ch = getopt(argc, argv, "wFS:D:")) != -1) {
switch (ch) {
case 'w':
lus.editondisk = true;
break;
case 'F':
lus.forceload = true;
break;
case 'S':
lus.session_type = optarg;
break;
case 'D':
if (strcasecmp(optarg, "all") == 0) {
es |= NSAllDomainsMask;
} else if (strcasecmp(optarg, "user") == 0) {
es |= NSUserDomainMask;
} else if (strcasecmp(optarg, "local") == 0) {
es |= NSLocalDomainMask;
} else if (strcasecmp(optarg, "network") == 0) {
es |= NSNetworkDomainMask;
} else if (strcasecmp(optarg, "system") == 0) {
es |= NSSystemDomainMask;
} else {
badopts = true;
}
break;
case '?':
default:
badopts = true;
break;
}
}
argc -= optind;
argv += optind;
if (lus.session_type == NULL) {
es &= ~NSUserDomainMask;
}
if (argc == 0 && es == 0) {
badopts = true;
}
if (badopts) {
launchctl_log(LOG_ERR, "usage: %s load [-wF] [-D <user|local|network|system|all>] paths...", getprogname());
return 1;
}
int dbfd = -1;
vproc_err_t verr = vproc_swap_string(NULL, VPROC_GSK_JOB_OVERRIDES_DB, NULL, &_launchctl_job_overrides_db_path);
if (verr) {
if (bootstrap_port) {
launchctl_log(LOG_ERR, "Could not get location of job overrides database: ppid/bootstrap: %d/0x%x", getppid(), bootstrap_port);
}
} else {
dbfd = open(_launchctl_job_overrides_db_path, O_RDONLY | O_EXLOCK | O_CREAT, S_IRUSR | S_IWUSR);
if (dbfd != -1) {
_launchctl_overrides_db = (CFMutableDictionaryRef)CreateMyPropertyListFromFile(_launchctl_job_overrides_db_path);
if (!_launchctl_overrides_db) {
_launchctl_overrides_db = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
}
} else if (errno != EROFS) {
launchctl_log(LOG_ERR, "Could not open job overrides database at: %s: %d: %s", _launchctl_job_overrides_db_path, errno, strerror(errno));
}
}
#if READ_JETSAM_DEFAULTS
if (!read_jetsam_defaults()) {
launchctl_log(LOG_NOTICE, "Failed to read jetsam defaults; no process limits applied");
}
#endif
lus.pass1 = launch_data_alloc(LAUNCH_DATA_ARRAY);
es = NSStartSearchPathEnumeration(NSLibraryDirectory, es);
while ((es = NSGetNextSearchPathEnumeration(es, nspath))) {
if (lus.session_type) {
strcat(nspath, "/LaunchAgents");
} else {
strcat(nspath, "/LaunchDaemons");
}
bool should_glob = true;
#if TARGET_OS_EMBEDDED
if (require_jobs_from_cache()) {
CFDictionaryRef cache = GetPropertyListFromCache();
if (cache) {
CFDictionaryRef launchdJobs = CFDictionaryGetValue(cache, CFSTR(XPC_PLIST_CACHE_KEY));
if (launchdJobs) {
CFIndex sz = CFDictionaryGetCount(launchdJobs);
CFStringRef *keys = malloc(sz * sizeof(CFStringRef));
CFDictionaryGetKeysAndValues(launchdJobs, (const void**)keys, NULL);
for (i=0; i < (size_t)sz; i++) {
char path[PATH_MAX];
if (CFStringGetCString(keys[i], path, PATH_MAX, kCFStringEncodingUTF8) && (strncmp(path, nspath, strlen(nspath)) == 0)) {
readpath(path, &lus);
}
}
}
}
should_glob = false;
}
#endif
if (should_glob) {
glob_t g;
if (glob(nspath, GLOB_TILDE|GLOB_NOSORT, NULL, &g) == 0) {
for (i = 0; i < g.gl_pathc; i++) {
readpath(g.gl_pathv[i], &lus);
}
globfree(&g);
}
}
}
for (i = 0; i < (size_t)argc; i++) {
readpath(argv[i], &lus);
}
if (launch_data_array_get_count(lus.pass1) == 0) {
if (!_launchctl_is_managed) {
launchctl_log(LOG_ERR, "nothing found to %s", lus.load ? "load" : "unload");
}
launch_data_free(lus.pass1);
return _launchctl_is_managed ? 0 : 1;
}
if (lus.load) {
distill_jobs(lus.pass1);
submit_job_pass(lus.pass1);
} else {
for (i = 0; i < launch_data_array_get_count(lus.pass1); i++) {
unloadjob(launch_data_array_get_index(lus.pass1, i));
}
}
if (_launchctl_overrides_db_changed) {
WriteMyPropertyListToFile(_launchctl_overrides_db, _launchctl_job_overrides_db_path);
}
flock(dbfd, LOCK_UN);
close(dbfd);
return 0;
}
void
submit_job_pass(launch_data_t jobs)
{
launch_data_t msg, resp;
size_t i;
int e;
if (launch_data_array_get_count(jobs) == 0)
return;
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(msg, jobs, LAUNCH_KEY_SUBMITJOB);
resp = launch_msg(msg);
if (resp) {
switch (launch_data_get_type(resp)) {
case LAUNCH_DATA_ERRNO:
if ((e = launch_data_get_errno(resp)))
launchctl_log(LOG_ERR, "%s", strerror(e));
break;
case LAUNCH_DATA_ARRAY:
for (i = 0; i < launch_data_array_get_count(jobs); i++) {
launch_data_t obatind = launch_data_array_get_index(resp, i);
launch_data_t jatind = launch_data_array_get_index(jobs, i);
const char *lab4job = launch_data_get_string(launch_data_dict_lookup(jatind, LAUNCH_JOBKEY_LABEL));
if (LAUNCH_DATA_ERRNO == launch_data_get_type(obatind)) {
e = launch_data_get_errno(obatind);
switch (e) {
case EEXIST:
launchctl_log(LOG_ERR, "%s: %s", lab4job, "Already loaded");
break;
case ESRCH:
launchctl_log(LOG_ERR, "%s: %s", lab4job, "Not loaded");
break;
case ENEEDAUTH:
launchctl_log(LOG_ERR, "%s: %s", lab4job, "Could not set security session");
default:
launchctl_log(LOG_ERR, "%s: %s", lab4job, strerror(e));
case 0:
break;
}
}
}
break;
default:
launchctl_log(LOG_ERR, "unknown respose from launchd!");
break;
}
launch_data_free(resp);
} else {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
}
launch_data_free(msg);
}
int
start_stop_remove_cmd(int argc, char *const argv[])
{
launch_data_t resp, msg;
const char *lmsgcmd = LAUNCH_KEY_STOPJOB;
int e, r = 0;
if (0 == strcmp(argv[0], "start"))
lmsgcmd = LAUNCH_KEY_STARTJOB;
if (0 == strcmp(argv[0], "remove"))
lmsgcmd = LAUNCH_KEY_REMOVEJOB;
if (argc != 2) {
launchctl_log(LOG_ERR, "usage: %s %s <job label>", getprogname(), argv[0]);
return 1;
}
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(msg, launch_data_new_string(argv[1]), lmsgcmd);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_ERRNO) {
if ((e = launch_data_get_errno(resp))) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], strerror(e));
r = 1;
}
} else {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
}
launch_data_free(resp);
return r;
}
void
print_jobs(launch_data_t j, const char *key __attribute__((unused)), void *context __attribute__((unused)))
{
static size_t depth = 0;
launch_data_t lo = launch_data_dict_lookup(j, LAUNCH_JOBKEY_LABEL);
launch_data_t pido = launch_data_dict_lookup(j, LAUNCH_JOBKEY_PID);
launch_data_t stato = launch_data_dict_lookup(j, LAUNCH_JOBKEY_LASTEXITSTATUS);
const char *label = launch_data_get_string(lo);
size_t i;
if (pido) {
fprintf(stdout, "%lld\t-\t%s\n", launch_data_get_integer(pido), label);
} else if (stato) {
int wstatus = (int)launch_data_get_integer(stato);
if (WIFEXITED(wstatus)) {
fprintf(stdout, "-\t%d\t%s\n", WEXITSTATUS(wstatus), label);
} else if (WIFSIGNALED(wstatus)) {
fprintf(stdout, "-\t-%d\t%s\n", WTERMSIG(wstatus), label);
} else {
fprintf(stdout, "-\t???\t%s\n", label);
}
} else {
fprintf(stdout, "-\t-\t%s\n", label);
}
for (i = 0; i < depth; i++) {
fprintf(stdout, "\t");
}
}
void
print_obj(launch_data_t obj, const char *key, void *context __attribute__((unused)))
{
static size_t indent = 0;
size_t i, c;
for (i = 0; i < indent; i++) {
fprintf(stdout, "\t");
}
if (key) {
fprintf(stdout, "\"%s\" = ", key);
}
switch (launch_data_get_type(obj)) {
case LAUNCH_DATA_STRING:
fprintf(stdout, "\"%s\";\n", launch_data_get_string(obj));
break;
case LAUNCH_DATA_INTEGER:
fprintf(stdout, "%lld;\n", launch_data_get_integer(obj));
break;
case LAUNCH_DATA_REAL:
fprintf(stdout, "%f;\n", launch_data_get_real(obj));
break;
case LAUNCH_DATA_BOOL:
fprintf(stdout, "%s;\n", launch_data_get_bool(obj) ? "true" : "false");
break;
case LAUNCH_DATA_ARRAY:
c = launch_data_array_get_count(obj);
fprintf(stdout, "(\n");
indent++;
for (i = 0; i < c; i++) {
print_obj(launch_data_array_get_index(obj, i), NULL, NULL);
}
indent--;
for (i = 0; i < indent; i++) {
fprintf(stdout, "\t");
}
fprintf(stdout, ");\n");
break;
case LAUNCH_DATA_DICTIONARY:
fprintf(stdout, "{\n");
indent++;
launch_data_dict_iterate(obj, print_obj, NULL);
indent--;
for (i = 0; i < indent; i++) {
fprintf(stdout, "\t");
}
fprintf(stdout, "};\n");
break;
case LAUNCH_DATA_FD:
fprintf(stdout, "file-descriptor-object;\n");
break;
case LAUNCH_DATA_MACHPORT:
fprintf(stdout, "mach-port-object;\n");
break;
default:
fprintf(stdout, "???;\n");
break;
}
}
int
list_cmd(int argc, char *const argv[])
{
if (_launchctl_is_managed) {
return 1;
}
launch_data_t resp, msg = NULL;
int r = 0;
bool plist_output = false;
char *label = NULL;
if (argc > 3) {
launchctl_log(LOG_ERR, "usage: %s list [-x] [label]", getprogname());
return 1;
} else if (argc >= 2) {
plist_output = (strncmp(argv[1], "-x", sizeof("-x")) == 0);
label = plist_output ? argv[2] : argv[1];
}
if (label) {
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(msg, launch_data_new_string(label), LAUNCH_KEY_GETJOB);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
r = 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_DICTIONARY) {
if (plist_output) {
CFDictionaryRef respDict = CFDictionaryCreateFromLaunchDictionary(resp);
CFStringRef plistStr = NULL;
if (respDict) {
CFDataRef plistData = CFPropertyListCreateXMLData(NULL, (CFPropertyListRef)respDict);
CFRelease(respDict);
if (plistData) {
plistStr = CFStringCreateWithBytes(NULL, CFDataGetBytePtr(plistData), CFDataGetLength(plistData), kCFStringEncodingUTF8, false);
CFRelease(plistData);
} else {
r = 1;
}
} else {
r = 1;
}
if (plistStr) {
launchctl_log_CFString(LOG_NOTICE, plistStr);
CFRelease(plistStr);
r = 0;
}
} else {
print_obj(resp, NULL, NULL);
r = 0;
}
launch_data_free(resp);
} else {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
launch_data_free(resp);
}
} else if (vproc_swap_complex(NULL, VPROC_GSK_ALLJOBS, NULL, &resp) == NULL) {
fprintf(stdout, "PID\tStatus\tLabel\n");
launch_data_dict_iterate(resp, print_jobs, NULL);
launch_data_free(resp);
r = 0;
}
return r;
}
int
stdio_cmd(int argc __attribute__((unused)), char *const argv[])
{
launchctl_log(LOG_ERR, "%s %s: This sub-command no longer does anything", getprogname(), argv[0]);
return 1;
}
int
fyi_cmd(int argc, char *const argv[])
{
launch_data_t resp, msg;
const char *lmsgk = NULL;
int e, r = 0;
if (argc != 1) {
launchctl_log(LOG_ERR, "usage: %s %s", getprogname(), argv[0]);
return 1;
}
if (!strcmp(argv[0], "shutdown")) {
lmsgk = LAUNCH_KEY_SHUTDOWN;
} else if (!strcmp(argv[0], "singleuser")) {
lmsgk = LAUNCH_KEY_SINGLEUSER;
} else {
return 1;
}
msg = launch_data_new_string(lmsgk);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_ERRNO) {
if ((e = launch_data_get_errno(resp))) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], strerror(e));
r = 1;
}
} else {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
}
launch_data_free(resp);
return r;
}
int
logupdate_cmd(int argc, char *const argv[])
{
int64_t inval, outval;
bool badargs = false, maskmode = false, onlymode = false, levelmode = false;
static const struct {
const char *name;
int level;
} logtbl[] = {
{ "debug", LOG_DEBUG },
{ "info", LOG_INFO },
{ "notice", LOG_NOTICE },
{ "warning", LOG_WARNING },
{ "error", LOG_ERR },
{ "critical", LOG_CRIT },
{ "alert", LOG_ALERT },
{ "emergency", LOG_EMERG },
};
size_t i, j, logtblsz = sizeof logtbl / sizeof logtbl[0];
int m = 0;
if (argc >= 2) {
if (!strcmp(argv[1], "mask"))
maskmode = true;
else if (!strcmp(argv[1], "only"))
onlymode = true;
else if (!strcmp(argv[1], "level"))
levelmode = true;
else
badargs = true;
}
if (maskmode)
m = LOG_UPTO(LOG_DEBUG);
if (argc > 2 && (maskmode || onlymode)) {
for (i = 2; i < (size_t)argc; i++) {
for (j = 0; j < logtblsz; j++) {
if (!strcmp(argv[i], logtbl[j].name)) {
if (maskmode)
m &= ~(LOG_MASK(logtbl[j].level));
else
m |= LOG_MASK(logtbl[j].level);
break;
}
}
if (j == logtblsz) {
badargs = true;
break;
}
}
} else if (argc > 2 && levelmode) {
for (j = 0; j < logtblsz; j++) {
if (!strcmp(argv[2], logtbl[j].name)) {
m = LOG_UPTO(logtbl[j].level);
break;
}
}
if (j == logtblsz)
badargs = true;
} else if (argc != 1) {
badargs = true;
}
if (badargs) {
launchctl_log(LOG_ERR, "usage: %s [[mask loglevels...] | [only loglevels...] [level loglevel]]", getprogname());
return 1;
}
inval = m;
if (vproc_swap_integer(NULL, VPROC_GSK_GLOBAL_LOG_MASK, argc != 1 ? &inval : NULL, &outval) == NULL) {
if (argc == 1) {
for (j = 0; j < logtblsz; j++) {
if (outval & LOG_MASK(logtbl[j].level)) {
launchctl_log(LOG_NOTICE, "%s ", logtbl[j].name);
}
}
launchctl_log(LOG_NOTICE, "");
}
return 0;
} else {
return 1;
}
}
static const struct {
const char *name;
int lim;
} limlookup[] = {
{ "cpu", RLIMIT_CPU },
{ "filesize", RLIMIT_FSIZE },
{ "data", RLIMIT_DATA },
{ "stack", RLIMIT_STACK },
{ "core", RLIMIT_CORE },
{ "rss", RLIMIT_RSS },
{ "memlock", RLIMIT_MEMLOCK },
{ "maxproc", RLIMIT_NPROC },
{ "maxfiles", RLIMIT_NOFILE }
};
static const size_t limlookupcnt = sizeof limlookup / sizeof limlookup[0];
ssize_t
name2num(const char *n)
{
size_t i;
for (i = 0; i < limlookupcnt; i++) {
if (!strcmp(limlookup[i].name, n)) {
return limlookup[i].lim;
}
}
return -1;
}
const char *
num2name(int n)
{
size_t i;
for (i = 0; i < limlookupcnt; i++) {
if (limlookup[i].lim == n)
return limlookup[i].name;
}
return NULL;
}
const char *
lim2str(rlim_t val, char *buf)
{
if (val == RLIM_INFINITY)
strcpy(buf, "unlimited");
else
sprintf(buf, "%lld", val);
return buf;
}
bool
str2lim(const char *buf, rlim_t *res)
{
char *endptr;
*res = strtoll(buf, &endptr, 10);
if (!strcmp(buf, "unlimited")) {
*res = RLIM_INFINITY;
return false;
} else if (*endptr == '\0') {
return false;
}
return true;
}
int
limit_cmd(int argc, char *const argv[])
{
char slimstr[100];
char hlimstr[100];
struct rlimit *lmts = NULL;
launch_data_t resp, resp1 = NULL, msg, tmp;
int r = 0;
size_t i, lsz = -1;
ssize_t which = 0;
rlim_t slim = -1, hlim = -1;
bool badargs = false;
if (argc > 4)
badargs = true;
if (argc >= 3 && str2lim(argv[2], &slim))
badargs = true;
else
hlim = slim;
if (argc == 4 && str2lim(argv[3], &hlim))
badargs = true;
if (argc >= 2 && -1 == (which = name2num(argv[1])))
badargs = true;
if (badargs) {
launchctl_log(LOG_ERR, "usage: %s %s [", getprogname(), argv[0]);
for (i = 0; i < limlookupcnt; i++)
launchctl_log(LOG_ERR, "%s %s", limlookup[i].name, (i + 1) == limlookupcnt ? "" : "| ");
launchctl_log(LOG_ERR, "[both | soft hard]]");
return 1;
}
msg = launch_data_new_string(LAUNCH_KEY_GETRESOURCELIMITS);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_OPAQUE) {
lmts = launch_data_get_opaque(resp);
lsz = launch_data_get_opaque_size(resp);
if (argc <= 2) {
for (i = 0; i < (lsz / sizeof(struct rlimit)); i++) {
if (argc == 2 && (size_t)which != i)
continue;
launchctl_log(LOG_NOTICE, "\t%-12s%-15s%-15s", num2name((int)i),
lim2str(lmts[i].rlim_cur, slimstr),
lim2str(lmts[i].rlim_max, hlimstr));
}
}
} else if (launch_data_get_type(resp) == LAUNCH_DATA_STRING) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], launch_data_get_string(resp));
r = 1;
} else {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
}
if (argc <= 2 || r != 0) {
launch_data_free(resp);
return r;
} else {
resp1 = resp;
}
lmts[which].rlim_cur = slim;
lmts[which].rlim_max = hlim;
bool maxfiles_exceeded = false;
if (strncmp(argv[1], "maxfiles", sizeof("maxfiles")) == 0) {
if (argc > 2) {
maxfiles_exceeded = (strncmp(argv[2], "unlimited", sizeof("unlimited")) == 0);
}
if (argc > 3) {
maxfiles_exceeded = (maxfiles_exceeded || strncmp(argv[3], "unlimited", sizeof("unlimited")) == 0);
}
if (maxfiles_exceeded) {
launchctl_log(LOG_ERR, "Neither the hard nor soft limit for \"maxfiles\" can be unlimited. Please use a numeric parameter for both.");
return 1;
}
}
msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
tmp = launch_data_new_opaque(lmts, lsz);
launch_data_dict_insert(msg, tmp, LAUNCH_KEY_SETRESOURCELIMITS);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_STRING) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], launch_data_get_string(resp));
r = 1;
} else if (launch_data_get_type(resp) != LAUNCH_DATA_OPAQUE) {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
}
launch_data_free(resp);
launch_data_free(resp1);
return r;
}
int
umask_cmd(int argc, char *const argv[])
{
bool badargs = false;
char *endptr;
long m = 0;
int64_t inval, outval;
if (argc == 2) {
m = strtol(argv[1], &endptr, 8);
if (*endptr != '\0' || m > 0777)
badargs = true;
}
if (argc > 2 || badargs) {
launchctl_log(LOG_ERR, "usage: %s %s <mask>", getprogname(), argv[0]);
return 1;
}
inval = m;
if (vproc_swap_integer(NULL, VPROC_GSK_GLOBAL_UMASK, argc == 2 ? &inval : NULL, &outval) == NULL) {
if (argc == 1) {
launchctl_log(LOG_NOTICE, "%o", (unsigned int)outval);
}
return 0;
} else {
return 1;
}
}
void
setup_system_context(void)
{
if (getenv(LAUNCHD_SOCKET_ENV)) {
return;
}
if (getenv(LAUNCH_ENV_KEEPCONTEXT)) {
return;
}
if (geteuid() != 0) {
launchctl_log(LOG_ERR, "You must be the root user to perform this operation.");
return;
}
setenv("__USE_SYSTEM_LAUNCHD", "1", 0);
mach_port_t rootbs = str2bsport("/");
mach_port_deallocate(mach_task_self(), bootstrap_port);
task_set_bootstrap_port(mach_task_self(), rootbs);
bootstrap_port = rootbs;
}
int
submit_cmd(int argc, char *const argv[])
{
launch_data_t msg = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_t job = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_t resp, largv = launch_data_alloc(LAUNCH_DATA_ARRAY);
int ch, i, r = 0;
launch_data_dict_insert(job, launch_data_new_bool(false), LAUNCH_JOBKEY_ONDEMAND);
while ((ch = getopt(argc, argv, "l:p:o:e:")) != -1) {
switch (ch) {
case 'l':
launch_data_dict_insert(job, launch_data_new_string(optarg), LAUNCH_JOBKEY_LABEL);
break;
case 'p':
launch_data_dict_insert(job, launch_data_new_string(optarg), LAUNCH_JOBKEY_PROGRAM);
break;
case 'o':
launch_data_dict_insert(job, launch_data_new_string(optarg), LAUNCH_JOBKEY_STANDARDOUTPATH);
break;
case 'e':
launch_data_dict_insert(job, launch_data_new_string(optarg), LAUNCH_JOBKEY_STANDARDERRORPATH);
break;
default:
launchctl_log(LOG_ERR, "usage: %s submit ...", getprogname());
return 1;
}
}
argc -= optind;
argv += optind;
for (i = 0; argv[i]; i++) {
launch_data_array_append(largv, launch_data_new_string(argv[i]));
}
launch_data_dict_insert(job, largv, LAUNCH_JOBKEY_PROGRAMARGUMENTS);
launch_data_dict_insert(msg, job, LAUNCH_KEY_SUBMITJOB);
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_ERRNO) {
errno = launch_data_get_errno(resp);
if (errno) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], strerror(errno));
r = 1;
}
} else {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], "unknown response");
}
launch_data_free(resp);
return r;
}
int
getrusage_cmd(int argc, char *const argv[])
{
launch_data_t resp, msg;
bool badargs = false;
int r = 0;
if (argc != 2)
badargs = true;
else if (strcmp(argv[1], "self") && strcmp(argv[1], "children"))
badargs = true;
if (badargs) {
launchctl_log(LOG_ERR, "usage: %s %s self | children", getprogname(), argv[0]);
return 1;
}
if (!strcmp(argv[1], "self")) {
msg = launch_data_new_string(LAUNCH_KEY_GETRUSAGESELF);
} else {
msg = launch_data_new_string(LAUNCH_KEY_GETRUSAGECHILDREN);
}
resp = launch_msg(msg);
launch_data_free(msg);
if (resp == NULL) {
launchctl_log(LOG_ERR, "launch_msg(): %s", strerror(errno));
return 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_ERRNO) {
launchctl_log(LOG_ERR, "%s %s error: %s", getprogname(), argv[0], strerror(launch_data_get_errno(resp)));
r = 1;
} else if (launch_data_get_type(resp) == LAUNCH_DATA_OPAQUE) {
struct rusage *rusage = launch_data_get_opaque(resp);
launchctl_log(LOG_NOTICE, "\t%-10f\tuser time used",
(double)rusage->ru_utime.tv_sec + (double)rusage->ru_utime.tv_usec / (double)1000000);
launchctl_log(LOG_NOTICE, "\t%-10f\tsystem time used",
(double)rusage->ru_stime.tv_sec + (double)rusage->ru_stime.tv_usec / (double)1000000);
launchctl_log(LOG_NOTICE, "\t%-10ld\tmax resident set size", rusage->ru_maxrss);
launchctl_log(LOG_NOTICE, "\t%-10ld\tshared text memory size", rusage->ru_ixrss);
launchctl_log(LOG_NOTICE, "\t%-10ld\tunshared data size", rusage->ru_idrss);
launchctl_log(LOG_NOTICE, "\t%-10ld\tunshared stack size", rusage->ru_isrss);
launchctl_log(LOG_NOTICE, "\t%-10ld\tpage reclaims", rusage->ru_minflt);
launchctl_log(LOG_NOTICE, "\t%-10ld\tpage faults", rusage->ru_majflt);
launchctl_log(LOG_NOTICE, "\t%-10ld\tswaps", rusage->ru_nswap);
launchctl_log(LOG_NOTICE, "\t%-10ld\tblock input operations", rusage->ru_inblock);
launchctl_log(LOG_NOTICE, "\t%-10ld\tblock output operations", rusage->ru_oublock);
launchctl_log(LOG_NOTICE, "\t%-10ld\tmessages sent", rusage->ru_msgsnd);
launchctl_log(LOG_NOTICE, "\t%-10ld\tmessages received", rusage->ru_msgrcv);
launchctl_log(LOG_NOTICE, "\t%-10ld\tsignals received", rusage->ru_nsignals);
launchctl_log(LOG_NOTICE, "\t%-10ld\tvoluntary context switches", rusage->ru_nvcsw);
launchctl_log(LOG_NOTICE, "\t%-10ld\tinvoluntary context switches", rusage->ru_nivcsw);
} else {
launchctl_log(LOG_ERR, "%s %s returned unknown response", getprogname(), argv[0]);
r = 1;
}
launch_data_free(resp);
return r;
}
bool
launch_data_array_append(launch_data_t a, launch_data_t o)
{
size_t offt = launch_data_array_get_count(a);
return launch_data_array_set_index(a, o, offt);
}
mach_port_t
str2bsport(const char *s)
{
bool getrootbs = strcmp(s, "/") == 0;
mach_port_t last_bport, bport = bootstrap_port;
task_t task = mach_task_self();
kern_return_t result;
if (strcmp(s, "..") == 0 || getrootbs) {
do {
last_bport = bport;
result = bootstrap_parent(last_bport, &bport);
if (result == BOOTSTRAP_NOT_PRIVILEGED) {
launchctl_log(LOG_ERR, "Permission denied");
return 1;
} else if (result != BOOTSTRAP_SUCCESS) {
launchctl_log(LOG_ERR, "bootstrap_parent() %d", result);
return 1;
}
} while (getrootbs && last_bport != bport);
} else if (strcmp(s, "0") == 0 || strcmp(s, "NULL") == 0) {
bport = MACH_PORT_NULL;
} else {
int pid = atoi(s);
result = task_for_pid(mach_task_self(), pid, &task);
if (result != KERN_SUCCESS) {
launchctl_log(LOG_ERR, "task_for_pid() %s", mach_error_string(result));
return 1;
}
result = task_get_bootstrap_port(task, &bport);
if (result != KERN_SUCCESS) {
launchctl_log(LOG_ERR, "Couldn't get bootstrap port: %s", mach_error_string(result));
return 1;
}
}
return bport;
}
int
bsexec_cmd(int argc, char *const argv[])
{
kern_return_t result;
mach_port_t bport;
if (argc < 3) {
launchctl_log(LOG_ERR, "usage: %s bsexec <PID> prog...", getprogname());
return 1;
}
bport = str2bsport(argv[1]);
result = task_set_bootstrap_port(mach_task_self(), bport);
if (result != KERN_SUCCESS) {
launchctl_log(LOG_ERR, "Couldn't switch to new bootstrap port: %s", mach_error_string(result));
return 1;
}
setgid(getgid());
setuid(getuid());
setenv(LAUNCH_ENV_KEEPCONTEXT, "1", 1);
if (fwexec((const char *const *)argv + 2, NULL) == -1) {
launchctl_log(LOG_ERR, "%s bsexec failed: %s", getprogname(), strerror(errno));
return 1;
}
return 0;
}
int
_bslist_cmd(mach_port_t bport, unsigned int depth, bool show_job, bool local_only)
{
kern_return_t result;
name_array_t service_names;
name_array_t service_jobs;
mach_msg_type_number_t service_cnt, service_jobs_cnt, service_active_cnt;
bootstrap_status_array_t service_actives;
unsigned int i;
if (bport == MACH_PORT_NULL) {
launchctl_log(LOG_ERR, "Invalid bootstrap port");
return 1;
}
uint64_t flags = 0;
flags |= local_only ? BOOTSTRAP_FORCE_LOCAL : 0;
result = bootstrap_info(bport, &service_names, &service_cnt, &service_jobs, &service_jobs_cnt, &service_actives, &service_active_cnt, flags);
if (result != BOOTSTRAP_SUCCESS) {
launchctl_log(LOG_ERR, "bootstrap_info(): %d", result);
return 1;
}
#define bport_state(x) (((x) == BOOTSTRAP_STATUS_ACTIVE) ? "A" : ((x) == BOOTSTRAP_STATUS_ON_DEMAND) ? "D" : "I")
for (i = 0; i < service_cnt ; i++) {
if (!show_job) {
fprintf(stdout, "%*s%-3s%s\n", depth, "", bport_state((service_actives[i])), service_names[i]);
} else {
fprintf(stdout, "%*s%-3s%s (%s)\n", depth, "", bport_state((service_actives[i])), service_names[i], service_jobs[i]);
}
}
return 0;
}
int
bslist_cmd(int argc, char *const argv[])
{
if (_launchctl_is_managed) {
return 1;
}
mach_port_t bport = bootstrap_port;
bool show_jobs = false;
if (argc > 2 && strcmp(argv[2], "-j") == 0) {
show_jobs = true;
}
if (argc > 1) {
if (show_jobs) {
bport = str2bsport(argv[1]);
} else if (strcmp(argv[1], "-j") == 0) {
show_jobs = true;
}
}
if (bport == MACH_PORT_NULL) {
launchctl_log(LOG_ERR, "Invalid bootstrap port");
return 1;
}
return _bslist_cmd(bport, 0, show_jobs, false);
}
int
_bstree_cmd(mach_port_t bsport, unsigned int depth, bool show_jobs)
{
if (bsport == MACH_PORT_NULL) {
launchctl_log(LOG_ERR, "No root port!");
return 1;
}
mach_port_array_t child_ports = NULL;
name_array_t child_names = NULL;
bootstrap_property_array_t child_props = NULL;
unsigned int cnt = 0;
kern_return_t kr = bootstrap_lookup_children(bsport, &child_ports, &child_names, &child_props, (mach_msg_type_number_t *)&cnt);
if (kr != BOOTSTRAP_SUCCESS && kr != BOOTSTRAP_NO_CHILDREN) {
if (kr == BOOTSTRAP_NOT_PRIVILEGED) {
launchctl_log(LOG_ERR, "You must be root to perform this operation.");
} else {
launchctl_log(LOG_ERR, "bootstrap_lookup_children(): %d", kr);
}
return 1;
}
unsigned int i = 0;
_bslist_cmd(bsport, depth, show_jobs, true);
for (i = 0; i < cnt; i++) {
char *type = NULL;
if (child_props[i] & BOOTSTRAP_PROPERTY_PERUSER) {
type = "Per-user";
} else if (child_props[i] & BOOTSTRAP_PROPERTY_EXPLICITSUBSET) {
type = "Explicit Subset";
} else if (child_props[i] & BOOTSTRAP_PROPERTY_IMPLICITSUBSET) {
type = "Implicit Subset";
} else if (child_props[i] & BOOTSTRAP_PROPERTY_MOVEDSUBSET) {
type = "Moved Subset";
} else if (child_props[i] & BOOTSTRAP_PROPERTY_XPC_SINGLETON) {
type = "XPC Singleton Domain";
} else if (child_props[i] & BOOTSTRAP_PROPERTY_XPC_DOMAIN) {
type = "XPC Private Domain";
} else {
type = "Unknown";
}
fprintf(stdout, "%*s%s (%s)/\n", depth, "", child_names[i], type);
if (child_ports[i] != MACH_PORT_NULL) {
_bstree_cmd(child_ports[i], depth + 4, show_jobs);
}
}
return 0;
}
int
bstree_cmd(int argc, char * const argv[])
{
if (_launchctl_is_managed) {
return 1;
}
bool show_jobs = false;
if (geteuid() != 0) {
launchctl_log(LOG_ERR, "You must be root to perform this operation.");
return 1;
} else {
if (argc == 2 && strcmp(argv[1], "-j") == 0) {
show_jobs = true;
}
fprintf(stdout, "System/\n");
}
return _bstree_cmd(str2bsport("/"), 4, show_jobs);
}
int
managerpid_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)))
{
int64_t manager_pid = 0;
vproc_err_t verr = vproc_swap_integer(NULL, VPROC_GSK_MGR_PID, NULL, (int64_t *)&manager_pid);
if (verr) {
launchctl_log(LOG_NOTICE, "Unknown job manager!");
return 1;
}
launchctl_log(LOG_NOTICE, "%d", (pid_t)manager_pid);
return 0;
}
int
manageruid_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)))
{
int64_t manager_uid = 0;
vproc_err_t verr = vproc_swap_integer(NULL, VPROC_GSK_MGR_UID, NULL, (int64_t *)&manager_uid);
if (verr) {
launchctl_log(LOG_NOTICE, "Unknown job manager!");
return 1;
}
launchctl_log(LOG_NOTICE, "%lli", manager_uid);
return 0;
}
int
managername_cmd(int argc __attribute__((unused)), char * const argv[] __attribute__((unused)))
{
char *manager_name = NULL;
vproc_err_t verr = vproc_swap_string(NULL, VPROC_GSK_MGR_NAME, NULL, &manager_name);
if (verr) {
launchctl_log(LOG_NOTICE, "Unknown job manager!");
return 1;
}
launchctl_log(LOG_NOTICE, "%s", manager_name);
free(manager_name);
return 0;
}
int
asuser_cmd(int argc, char * const argv[])
{
uid_t req_uid = (uid_t)-2;
if (argc > 2) {
req_uid = atoi(argv[1]);
if (req_uid == (uid_t)-2) {
launchctl_log(LOG_ERR, "You cannot run a command nobody.");
return 1;
}
} else {
launchctl_log(LOG_ERR, "Usage: launchctl asuser <UID> <command> [arguments...].");
return 1;
}
if (geteuid() != 0) {
launchctl_log(LOG_ERR, "You must be root to run a command as another user.");
return 1;
}
mach_port_t rbs = MACH_PORT_NULL;
kern_return_t kr = bootstrap_get_root(bootstrap_port, &rbs);
if (kr != BOOTSTRAP_SUCCESS) {
launchctl_log(LOG_ERR, "bootstrap_get_root(): %u", kr);
return 1;
}
mach_port_t bp = MACH_PORT_NULL;
kr = bootstrap_look_up_per_user(rbs, NULL, req_uid, &bp);
if (kr != BOOTSTRAP_SUCCESS) {
launchctl_log(LOG_ERR, "bootstrap_look_up_per_user(): %u", kr);
return 1;
}
bootstrap_port = bp;
kr = task_set_bootstrap_port(mach_task_self(), bp);
if (kr != KERN_SUCCESS) {
launchctl_log(LOG_ERR, "task_set_bootstrap_port(): 0x%x: %s", kr, mach_error_string(kr));
return 1;
}
name_t sockpath;
sockpath[0] = 0;
kr = _vprocmgr_getsocket(sockpath);
if (kr != BOOTSTRAP_SUCCESS) {
launchctl_log(LOG_ERR, "_vprocmgr_getsocket(): %u", kr);
return 1;
}
setenv(LAUNCHD_SOCKET_ENV, sockpath, 1);
setenv(LAUNCH_ENV_KEEPCONTEXT, "1", 1);
if (fwexec((const char *const *)argv + 2, NULL) == -1) {
launchctl_log(LOG_ERR, "Couldn't spawn command: %s", argv[2]);
return 1;
}
return 0;
}
void
loopback_setup_ipv4(void)
{
struct ifaliasreq ifra;
struct ifreq ifr;
int s;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, "lo0");
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
return;
if (posix_assumes_zero(ioctl(s, SIOCGIFFLAGS, &ifr)) != -1) {
ifr.ifr_flags |= IFF_UP;
(void)posix_assumes_zero(ioctl(s, SIOCSIFFLAGS, &ifr));
}
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);
(void)posix_assumes_zero(ioctl(s, SIOCAIFADDR, &ifra));
(void)close(s);
}
void
loopback_setup_ipv6(void)
{
struct in6_aliasreq ifra6;
struct ifreq ifr;
int s6;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, "lo0");
if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) == -1)
return;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, "lo0");
if (posix_assumes_zero(ioctl(s6, SIOCGIFFLAGS, &ifr)) != -1) {
ifr.ifr_flags |= IFF_UP;
(void)posix_assumes_zero(ioctl(s6, SIOCSIFFLAGS, &ifr));
}
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 && errno != EEXIST) {
(void)os_assumes_zero(errno);
}
(void)close(s6);
}
pid_t
fwexec(const char *const *argv, int *wstatus)
{
int wstatus2;
pid_t p;
if ((p = vfork()) == -1) {
return -1;
} else if (p == 0) {
execvp(argv[0], (char *const *)argv);
_exit(EXIT_FAILURE);
}
if (waitpid(p, wstatus ? wstatus : &wstatus2, 0) == -1) {
return -1;
}
if (wstatus) {
return p;
} else if (WIFEXITED(wstatus2) && WEXITSTATUS(wstatus2) == EXIT_SUCCESS) {
return p;
}
return -1;
}
void
do_potential_fsck(void)
{
const char *safe_fsck_tool[] = { "fsck", "-fy", NULL };
const char *fsck_tool[] = { "fsck", "-q", NULL };
const char *remount_tool[] = { "mount", "-uw", "/", NULL };
#if TARGET_OS_EMBEDDED
const char *nvram_tool[] = { "/usr/sbin/nvram", "auto-boot=false", NULL };
#endif
struct statfs sfs;
int status = 0;
if (posix_assumes_zero(statfs("/", &sfs)) == -1) {
return;
}
if (!(sfs.f_flags & MNT_RDONLY)) {
return;
}
if (!is_safeboot()) {
#if 0
if (sfs.f_flags & MNT_JOURNALED) {
goto out;
}
#endif
launchctl_log(LOG_NOTICE, "Running fsck on the boot volume...");
if (fwexec(fsck_tool, &status) != -1) {
if (WEXITSTATUS(status) != 0) {
launchctl_log(LOG_NOTICE, "fsck exited with status: %d", WEXITSTATUS(status));
} else {
goto out;
}
} else {
launchctl_log(LOG_NOTICE, "fwexec(): %d: %s", errno, strerror(errno));
}
}
launchctl_log(LOG_NOTICE, "Running safe fsck on the boot volume...");
if (fwexec(safe_fsck_tool, &status) != -1) {
if (WEXITSTATUS(status) != 0) {
launchctl_log(LOG_NOTICE, "Safe fsck exited with status: %d", WEXITSTATUS(status));
} else {
goto out;
}
} else {
launchctl_log(LOG_NOTICE, "fwexec(): %d: %s", errno, strerror(errno));
}
#if TARGET_OS_EMBEDDED
launchctl_log(LOG_NOTICE, "fsck failed! Booting into restore mode...");
(void)posix_assumes_zero(fwexec(nvram_tool, NULL));
(void)reboot(RB_AUTOBOOT);
#else
launchctl_log(LOG_NOTICE, "fsck failed! Shutting down in 3 seconds.");
sleep(3);
(void)reboot(RB_HALT);
#endif
return;
out:
#if TARGET_OS_EMBEDDED
init_data_protection();
#endif
#if TARGET_OS_EMBEDDED
if (path_check("/etc/fstab")) {
const char *mount_tool[] = { "mount", "-vat", "nonfs", NULL };
if (posix_assumes_zero(fwexec(mount_tool, NULL)) == -1) {
(void)fwexec(nvram_tool, NULL);
(void)reboot(RB_AUTOBOOT);
}
} else
#endif
{
(void)posix_assumes_zero(fwexec(remount_tool, NULL));
}
fix_bogus_file_metadata();
}
void
fix_bogus_file_metadata(void)
{
#if !TARGET_OS_EMBEDDED
static const struct {
const char *path;
const uid_t owner;
const gid_t group;
const mode_t needed_bits;
const mode_t bad_bits;
const bool create;
} f[] = {
{ "/sbin/launchd", 0, 0, S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, S_ISUID|S_ISGID|S_ISVTX|S_IWOTH, false },
{ _PATH_TMP, 0, 0, S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO, S_ISUID|S_ISGID, true },
{ _PATH_VARTMP, 0, 0, S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO, S_ISUID|S_ISGID, true },
{ "/var/folders", 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_ISUID | S_ISGID, true },
{ LAUNCHD_DB_PREFIX, 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_IWGRP | S_IWOTH, true },
{ LAUNCHD_DB_PREFIX "/com.apple.launchd", 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_IWGRP | S_IWOTH, true },
{ _PATH_VARDB, 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_IWGRP | S_IWOTH | S_ISUID | S_ISGID, true },
{ _PATH_VARDB "mds/", 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_IWGRP | S_IWOTH | S_ISUID | S_ISGID, true },
{ "/Library/StartupItems", 0, 0, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH, S_IWGRP | S_IWOTH | S_ISUID | S_ISGID, true },
};
struct stat sb;
size_t i;
for (i = 0; i < (sizeof(f) / sizeof(f[0])); i++) {
mode_t i_needed_bits;
mode_t i_bad_bits;
bool fix_mode = false;
bool fix_id = false;
if (stat(f[i].path, &sb) == -1) {
launchctl_log(LOG_NOTICE, "Crucial filesystem check: Path not present: %s. %s", f[i].path, f[i].create ? "Will create." : "");
if (f[i].create) {
if (posix_assumes_zero(mkdir(f[i].path, f[i].needed_bits)) == -1) {
continue;
} else if (posix_assumes_zero(stat(f[i].path, &sb)) == -1) {
continue;
}
} else {
continue;
}
}
i_needed_bits = ~sb.st_mode & f[i].needed_bits;
i_bad_bits = sb.st_mode & f[i].bad_bits;
if (i_bad_bits) {
launchctl_log(LOG_ERR, "Crucial filesystem check: Removing bogus mode bits 0%o on path: %s", i_bad_bits, f[i].path);
fix_mode = true;
}
if (i_needed_bits) {
launchctl_log(LOG_ERR, "Crucial filesystem check: Adding missing mode bits 0%o on path: %s", i_needed_bits, f[i].path);
fix_mode = true;
}
if (sb.st_uid != f[i].owner) {
launchctl_log(LOG_ERR, "Crucial filesystem check: Fixing bogus UID %u on path: %s", sb.st_uid, f[i].path);
fix_id = true;
}
if (sb.st_gid != f[i].group) {
launchctl_log(LOG_ERR, "Crucial filesystem check: Fixing bogus GID %u on path: %s", sb.st_gid, f[i].path);
fix_id = true;
}
if (fix_mode) {
(void)posix_assumes_zero(chmod(f[i].path, (sb.st_mode & ~i_bad_bits) | i_needed_bits));
}
if (fix_id) {
(void)posix_assumes_zero(chown(f[i].path, f[i].owner, f[i].group));
}
}
#endif
}
bool
path_check(const char *path)
{
struct stat sb;
if (stat(path, &sb) == 0)
return true;
return false;
}
bool
is_safeboot(void)
{
int sbmib[] = { CTL_KERN, KERN_SAFEBOOT };
uint32_t sb = 0;
size_t sbsz = sizeof(sb);
if (posix_assumes_zero(sysctl(sbmib, 2, &sb, &sbsz, NULL, 0)) == -1) {
return false;
}
return (bool)sb;
}
bool
is_netboot(void)
{
int nbmib[] = { CTL_KERN, KERN_NETBOOT };
uint32_t nb = 0;
size_t nbsz = sizeof(nb);
if (posix_assumes_zero(sysctl(nbmib, 2, &nb, &nbsz, NULL, 0)) == -1) {
return false;
}
return (bool)nb;
}
void
empty_dir(const char *thedir, struct stat *psb)
{
struct dirent *de;
struct stat psb2;
DIR *od;
int currend_dir_fd;
if (!psb) {
psb = &psb2;
if (posix_assumes_zero(lstat(thedir, psb)) == -1) {
return;
}
}
if (posix_assumes_zero(currend_dir_fd = open(".", 0)) == -1) {
return;
}
if (posix_assumes_zero(chdir(thedir)) == -1) {
goto out;
}
if (!(od = opendir("."))) {
(void)os_assumes_zero(errno);
goto out;
}
while ((de = readdir(od))) {
struct stat sb;
if (strcmp(de->d_name, ".") == 0) {
continue;
}
if (strcmp(de->d_name, "..") == 0) {
continue;
}
if (posix_assumes_zero(lstat(de->d_name, &sb)) == -1) {
continue;
}
if (psb->st_dev != sb.st_dev) {
(void)posix_assumes_zero(unmount(de->d_name, MNT_FORCE));
if (posix_assumes_zero(lstat(de->d_name, &sb)) == -1) {
continue;
}
if (os_assumes(psb->st_dev == sb.st_dev)) {
continue;
}
}
if (S_ISDIR(sb.st_mode)) {
empty_dir(de->d_name, &sb);
}
(void)posix_assumes_zero(lchflags(de->d_name, 0));
(void)posix_assumes_zero(remove(de->d_name));
}
(void)closedir(od);
out:
(void)posix_assumes_zero(fchdir(currend_dir_fd));
(void)posix_assumes_zero(close(currend_dir_fd));
}
int
touch_file(const char *path, mode_t m)
{
int fd = open(path, O_CREAT, m);
if (fd == -1)
return -1;
return close(fd);
}
void
apply_sysctls_from_file(const char *thefile)
{
const char *sysctl_tool[] = { "sysctl", "-w", NULL, NULL };
size_t ln_len = 0;
char *val, *tmpstr;
FILE *sf;
if (!(sf = fopen(thefile, "r")))
return;
while ((val = fgetln(sf, &ln_len))) {
if (ln_len == 0) {
continue;
}
if (!(tmpstr = malloc(ln_len + 1))) {
(void)os_assumes_zero(errno);
continue;
}
memcpy(tmpstr, val, ln_len);
tmpstr[ln_len] = 0;
val = tmpstr;
if (val[ln_len - 1] == '\n' || val[ln_len - 1] == '\r') {
val[ln_len - 1] = '\0';
}
while (*val && isspace(*val))
val++;
if (*val == '\0' || *val == '#') {
goto skip_sysctl_tool;
}
sysctl_tool[2] = val;
(void)posix_assumes_zero(fwexec(sysctl_tool, NULL));
skip_sysctl_tool:
free(tmpstr);
}
(void)fclose(sf);
}
static CFStringRef
copySystemBuildVersion(void)
{
CFStringRef build = NULL;
const char path[] = "/System/Library/CoreServices/SystemVersion.plist";
CFURLRef plistURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (const uint8_t *)path, sizeof(path) - 1, false);
CFPropertyListRef plist = NULL;
if (plistURL && (plist = CFPropertyListCreateFromFile(plistURL))) {
if (CFTypeCheck(plist, CFDictionary)) {
build = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)plist, _kCFSystemVersionBuildVersionKey);
if (build && CFTypeCheck(build, CFString)) {
CFRetain(build);
} else {
build = CFSTR("99Z999");
}
}
CFRelease(plist);
} else {
build = CFSTR("99Z999");
}
if (plistURL) {
CFRelease(plistURL);
}
return build;
}
void
do_sysversion_sysctl(void)
{
int mib[] = { CTL_KERN, KERN_OSVERSION };
CFStringRef buildvers;
char buf[1024];
size_t bufsz = sizeof(buf);
if (sysctl(mib, 2, buf, &bufsz, NULL, 0) == -1) {
launchctl_log(LOG_ERR, "sysctl(): %s", strerror(errno));
return;
}
if (buf[0] != '\0') {
return;
}
buildvers = copySystemBuildVersion();
if (buildvers) {
CFStringGetCString(buildvers, buf, sizeof(buf), kCFStringEncodingUTF8);
(void)posix_assumes_zero(sysctl(mib, 2, NULL, 0, buf, strlen(buf) + 1));
}
CFRelease(buildvers);
}
void
do_application_firewall_magic(int sfd, launch_data_t thejob)
{
const char *prog = NULL, *partialprog = NULL;
char *path, *pathtmp, **pathstmp;
char *paths[100];
launch_data_t tmp;
if ((tmp = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_PROGRAM))) {
prog = launch_data_get_string(tmp);
}
if (!prog) {
if ((tmp = launch_data_dict_lookup(thejob, LAUNCH_JOBKEY_PROGRAMARGUMENTS))) {
if ((tmp = launch_data_array_get_index(tmp, 0))) {
if ((partialprog = launch_data_get_string(tmp))) {
if (partialprog[0] == '/') {
prog = partialprog;
}
}
}
}
}
if (!prog) {
pathtmp = path = strdup(getenv("PATH"));
pathstmp = paths;
while ((*pathstmp = strsep(&pathtmp, ":"))) {
if (**pathstmp != '\0') {
pathstmp++;
}
}
free(path);
pathtmp = alloca(MAXPATHLEN);
pathstmp = paths;
for (; *pathstmp; pathstmp++) {
snprintf(pathtmp, MAXPATHLEN, "%s/%s", *pathstmp, partialprog);
if (path_check(pathtmp)) {
prog = pathtmp;
break;
}
}
}
if (prog != NULL) {
if (setsockopt(sfd, SOL_SOCKET, SO_EXECPATH, prog, (socklen_t)(strlen(prog) + 1)) == -1 && errno != ENOPROTOOPT) {
(void)os_assumes_zero(errno);
}
}
}
void
preheat_page_cache_hack(void)
{
struct dirent *de;
DIR *thedir;
return;
if ((thedir = opendir("/etc/preheat_at_boot")) == NULL) {
return;
}
while ((de = readdir(thedir))) {
struct stat sb;
void *junkbuf;
int fd;
if (de->d_name[0] == '.') {
continue;
}
if ((fd = open(de->d_name, O_RDONLY)) == -1) {
continue;
}
if (fstat(fd, &sb) != -1) {
if ((sb.st_size < 10*1024*1024) && (junkbuf = malloc((size_t)sb.st_size)) != NULL) {
ssize_t n = read(fd, junkbuf, (size_t)sb.st_size);
if (posix_assumes_zero(n) != -1 && n != (ssize_t)sb.st_size) {
(void)os_assumes_zero(n);
}
free(junkbuf);
}
}
close(fd);
}
closedir(thedir);
}
void
do_bootroot_magic(void)
{
const char *kextcache_tool[] = { "kextcache", "-U", "/", NULL };
CFTypeRef bootrootProp;
io_service_t chosen;
int wstatus;
pid_t p;
chosen = IORegistryEntryFromPath(kIOMasterPortDefault, "IODeviceTree:/chosen");
if (!os_assumes(chosen)) {
return;
}
bootrootProp = IORegistryEntryCreateCFProperty(chosen, CFSTR(kBootRootActiveKey), kCFAllocatorDefault, 0);
IOObjectRelease(chosen);
if (!bootrootProp) {
return;
}
CFRelease(bootrootProp);
if (posix_assumes_zero(p = fwexec(kextcache_tool, &wstatus)) == -1) {
return;
}
if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == EX_OSFILE) {
(void)reboot(RB_AUTOBOOT);
}
}
void
do_file_init(void)
{
struct stat sb;
if (stat("/AppleInternal", &sb) == 0 && stat("/var/db/disableAppleInternal", &sb) == -1) {
_launchctl_apple_internal = true;
}
char bootargs[128];
size_t len = sizeof(bootargs);
int r = sysctlbyname("kern.bootargs", bootargs, &len, NULL, 0);
if (r == 0 && (strnstr(bootargs, "-v", len) != NULL || strnstr(bootargs, "-s", len))) {
_launchctl_verbose_boot = true;
}
if (stat("/var/db/.launchd_shutdown_debugging", &sb) == 0 && _launchctl_verbose_boot) {
_launchctl_startup_debugging = true;
}
}