e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering#include <assert.h>

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering#include <errno.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <string.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/epoll.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <signal.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/signalfd.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/wait.h>

3c70e3bb022f0de3317f3600c9366a2f4597339eLennart Poettering#include <unistd.h>

3c70e3bb022f0de3317f3600c9366a2f4597339eLennart Poettering#include <sys/poll.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/reboot.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/ioctl.h>

6482f6269c87d2249e52e889a63adbdd50f2d691Ronny Chevalier#include <linux/kd.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <termios.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <fcntl.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/types.h>

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include <sys/stat.h>

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack#include <dirent.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include <sys/timerfd.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#ifdef HAVE_AUDIT

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include <libaudit.h>

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#endif

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "systemd/sd-daemon.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "systemd/sd-id128.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "systemd/sd-messages.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "manager.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "transaction.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "hashmap.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "macro.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "strv.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "log.h"

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering#include "util.h"

3f9da416457c4265b8f1179516a32ad1a987ff7dLennart Poettering#include "mkdir.h"

4f10118016f9b2fd7e1d26c9ef7d91eb33fba694Lennart Poettering#include "ratelimit.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "cgroup.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "mount-setup.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "unit-name.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "dbus-unit.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "dbus-job.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "missing.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "path-lookup.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "special.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "bus-errors.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "exit-status.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "virt.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "watchdog.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "cgroup-util.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "path-util.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#include "audit-fd.h"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#define GC_QUEUE_ENTRIES_MAX 16

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering#define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify"

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringstatic int manager_setup_notify(Manager *m) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering union {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct sockaddr sa;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct sockaddr_un un;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering } sa;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct epoll_event ev;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering int one = 1;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->notify_watch.type = WATCH_NOTIFY;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->notify_watch.fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (m->notify_watch.fd < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_error("Failed to allocate notification socket: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -errno;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering zero(sa);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering sa.sa.sa_family = AF_UNIX;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (getpid() != 1 || detect_container(NULL) > 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%llu", random_ull());

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering else

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path));

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering sa.un.sun_path[0] = 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (bind(m->notify_watch.fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_error("bind() failed: %m");

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -errno;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (setsockopt(m->notify_watch.fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_error("SO_PASSCRED failed: %m");

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -errno;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering zero(ev);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ev.events = EPOLLIN;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ev.data.ptr = &m->notify_watch;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev) < 0) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_error("Failed to add timer change fd to epoll: %m");

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -errno;

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering sa.un.sun_path[0] = '@';

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering m->notify_socket = strdup(sa.un.sun_path);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!m->notify_socket)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return log_oom();

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen log_debug("Using notification socket %s", m->notify_socket);

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen return 0;

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen}

7dfbe2e3fc0215b49d8202a32beb6b1aae08c4e4Tom Gundersen

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringstatic int manager_setup_time_change(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering struct epoll_event ev;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering struct itimerspec its;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m->time_change_watch.type == WATCH_INVALID);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->time_change_watch.type = WATCH_TIME_CHANGE;

b2c23da8cea1987a1a329f5a964d3299b7ca7890Lennart Poettering m->time_change_watch.fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->time_change_watch.fd < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_error("Failed to create timerfd: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -errno;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(its);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* We only care for the cancellation event, hence we set the

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert_cc(sizeof(time_t) == sizeof(long));

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering its.it_value.tv_sec = LONG_MAX;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (timerfd_settime(m->time_change_watch.fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(m->time_change_watch.fd);

7410616cd9dbbec97cf98d75324da5cda2b2f7a2Lennart Poettering watch_init(&m->time_change_watch);

7410616cd9dbbec97cf98d75324da5cda2b2f7a2Lennart Poettering return 0;

7410616cd9dbbec97cf98d75324da5cda2b2f7a2Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(ev);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering ev.events = EPOLLIN;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering ev.data.ptr = &m->time_change_watch;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->time_change_watch.fd, &ev) < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_error("Failed to add timer change fd to epoll: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -errno;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack }

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack return 0;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack}

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mackstatic int enable_special_signals(Manager *m) {

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack int fd;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack assert(m);

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Enable that we get SIGINT on control-alt-del. In containers

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_warning("Failed to enable ctrl-alt-del handling: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (fd < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Support systems without virtual console */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (fd != -ENOENT)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_warning("Failed to open /dev/tty0: %m");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering } else {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Enable that we get SIGWINCH on kbrequest */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_warning("Failed to enable kbrequest handling: %s", strerror(errno));

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(fd);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poetteringstatic int manager_setup_signals(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering sigset_t mask;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering struct epoll_event ev;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering struct sigaction sa;

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* We are not interested in SIGSTOP and friends. */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(sa);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering sa.sa_handler = SIG_DFL;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert_se(sigemptyset(&mask) == 0);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering sigset_add_many(&mask,

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGCHLD, /* Child died */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGTERM, /* Reexecute daemon */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGHUP, /* Reload configuration */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGUSR1, /* systemd/upstart: reconnect to D-Bus */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGUSR2, /* systemd: dump status */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGINT, /* Kernel sends us this on control-alt-del */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGPWR, /* Some kernel drivers and upsd send us this on power failure */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+0, /* systemd: start default.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+1, /* systemd: isolate rescue.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+2, /* systemd: isolate emergency.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+3, /* systemd: start halt.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+4, /* systemd: start poweroff.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+5, /* systemd: start reboot.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+6, /* systemd: start kexec.target */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+13, /* systemd: Immediate halt */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+14, /* systemd: Immediate poweroff */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+15, /* systemd: Immediate reboot */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+16, /* systemd: Immediate kexec */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+20, /* systemd: enable status messages */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+21, /* systemd: disable status messages */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+23, /* systemd: set log level to LOG_INFO */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+24, /* systemd: Immediate exit (--user only) */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+27, /* systemd: set log target to console */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering SIGRTMIN+28, /* systemd: set log target to kmsg */

3f9da416457c4265b8f1179516a32ad1a987ff7dLennart Poettering SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack -1);

3f9da416457c4265b8f1179516a32ad1a987ff7dLennart Poettering assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->signal_watch.type = WATCH_SIGNAL;

3f9da416457c4265b8f1179516a32ad1a987ff7dLennart Poettering m->signal_watch.fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack if (m->signal_watch.fd < 0)

3f9da416457c4265b8f1179516a32ad1a987ff7dLennart Poettering return -errno;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering zero(ev);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ev.events = EPOLLIN;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ev.data.ptr = &m->signal_watch;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->signal_watch.fd, &ev) < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -errno;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->running_as == SYSTEMD_SYSTEM)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return enable_special_signals(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringstatic void manager_strip_environment(Manager *m) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering /* Remove variables from the inherited set that are part of

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering strv_remove_prefix(m->environment, "container=");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering strv_remove_prefix(m->environment, "container_");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Remove variables from the inherited set that are part of

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering strv_remove_prefix(m->environment, "RD_");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringint manager_new(SystemdRunningAs running_as, Manager **_m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Manager *m;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering int r = -ENOMEM;

cfa9677bd164574600d29a9bf99f9d1f28a7a170Mantas Mikulėnas

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(_m);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering assert(running_as >= 0);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(running_as < _SYSTEMD_RUNNING_AS_MAX);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m = new0(Manager, 1);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!m)

cfa9677bd164574600d29a9bf99f9d1f28a7a170Mantas Mikulėnas return -ENOMEM;

cfa9677bd164574600d29a9bf99f9d1f28a7a170Mantas Mikulėnas

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering dual_timestamp_get(&m->userspace_timestamp);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->running_as = running_as;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1;

8f077bf94e129fa1b6f0159e3140c4326f1066cfZbigniew Jędrzejewski-Szmek m->exit_code = _MANAGER_EXIT_CODE_INVALID;

8f077bf94e129fa1b6f0159e3140c4326f1066cfZbigniew Jędrzejewski-Szmek m->pin_cgroupfs_fd = -1;

8f077bf94e129fa1b6f0159e3140c4326f1066cfZbigniew Jędrzejewski-Szmek m->idle_pipe[0] = m->idle_pipe[1] = -1;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering watch_init(&m->signal_watch);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering watch_init(&m->mount_watch);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering watch_init(&m->swap_watch);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering watch_init(&m->udev_watch);

b2c23da8cea1987a1a329f5a964d3299b7ca7890Lennart Poettering watch_init(&m->time_change_watch);

8f077bf94e129fa1b6f0159e3140c4326f1066cfZbigniew Jędrzejewski-Szmek

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt m->epoll_fd = m->dev_autofs_fd = -1;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->environment = strv_copy(environ);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!m->environment)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering manager_strip_environment(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (running_as == SYSTEMD_SYSTEM) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->default_controllers = strv_new("cpu", NULL);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!m->default_controllers)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!(m->units = hashmap_new(string_hash_func, string_compare_func)))

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(m->jobs = hashmap_new(trivial_hash_func, trivial_compare_func)))

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!(m->watch_pids = hashmap_new(trivial_hash_func, trivial_compare_func)))

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(m->cgroup_bondings = hashmap_new(string_hash_func, string_compare_func)))

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(m->watch_bus = hashmap_new(string_hash_func, string_compare_func)))

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

be847e82cf95bf8eb589778df2aa2b3d1d7ae99eLennart Poettering m->epoll_fd = epoll_create1(EPOLL_CLOEXEC);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->epoll_fd < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering r = manager_setup_signals(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (r < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering r = manager_setup_cgroup(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (r < 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering r = manager_setup_notify(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (r < 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering r = manager_setup_time_change(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (r < 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* Try to connect to the busses, if possible. */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering r = bus_init(m, running_as != SYSTEMD_SYSTEM);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (r < 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto fail;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->taint_usr = dir_is_empty("/usr") > 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering *_m = m;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringfail:

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering manager_free(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringstatic unsigned manager_dispatch_cleanup_queue(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Unit *u;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unsigned n = 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering while ((u = m->cleanup_queue)) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(u->in_cleanup_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_free(u);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering n++;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return n;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringenum {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering GC_OFFSET_UNSURE, /* No clue */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering GC_OFFSET_GOOD, /* We still need this unit */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering GC_OFFSET_BAD, /* We don't need this unit anymore */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering _GC_OFFSET_MAX

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering};

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringstatic void unit_gc_sweep(Unit *u, unsigned gc_marker) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Iterator i;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Unit *other;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering bool is_bad;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(u);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker == gc_marker + GC_OFFSET_BAD ||

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (u->in_cleanup_queue)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto bad;

da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (unit_check_gc(u))

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto good;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering is_bad = true;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_gc_sweep(other, gc_marker);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering goto good;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (other->gc_marker != gc_marker + GC_OFFSET_BAD)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering is_bad = false;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (is_bad)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto bad;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* We were unable to find anything out about this entry, so

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering u->gc_marker = gc_marker + GC_OFFSET_UNSURE;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unit_add_to_gc_queue(u);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringbad:

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* We definitely know that this one is not useful anymore, so

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering u->gc_marker = gc_marker + GC_OFFSET_BAD;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unit_add_to_cleanup_queue(u);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringgood:

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker = gc_marker + GC_OFFSET_GOOD;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringstatic unsigned manager_dispatch_gc_queue(Manager *m) {

db2cb23b5b179707000d28a11efb3d888d06ee80Umut Tezduyar Lindskog Unit *u;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unsigned n = 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unsigned gc_marker;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if ((m->n_in_gc_queue < GC_QUEUE_ENTRIES_MAX) &&

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering (m->gc_queue_timestamp <= 0 ||

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering (m->gc_queue_timestamp + GC_QUEUE_USEC_MAX) > now(CLOCK_MONOTONIC)))

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_debug("Running GC...");

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering m->gc_marker += _GC_OFFSET_MAX;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering m->gc_marker = 1;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering gc_marker = m->gc_marker;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering while ((u = m->gc_queue)) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(u->in_gc_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_gc_sweep(u, gc_marker);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering LIST_REMOVE(Unit, gc_queue, m->gc_queue, u);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->in_gc_queue = false;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering n++;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_debug("Collecting %s", u->id);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering u->gc_marker = gc_marker + GC_OFFSET_BAD;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack unit_add_to_cleanup_queue(u);

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack }

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack }

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack m->n_in_gc_queue = 0;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack m->gc_queue_timestamp = 0;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack return n;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack}

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringstatic void manager_clear_jobs_and_units(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Unit *u;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering while ((u = hashmap_first(m->units)))

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_free(u);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering manager_dispatch_cleanup_queue(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->load_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->run_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->dbus_unit_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->dbus_job_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->cleanup_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(!m->gc_queue);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

8d0e0ddda6501479eb69164687c83c1a7667b33aJan Engelhardt assert(hashmap_isempty(m->jobs));

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(hashmap_isempty(m->units));

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringvoid manager_free(Manager *m) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering UnitType c;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering int i;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering manager_clear_jobs_and_units(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering for (c = 0; c < _UNIT_TYPE_MAX; c++)

8d0e0ddda6501479eb69164687c83c1a7667b33aJan Engelhardt if (unit_vtable[c]->shutdown)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_vtable[c]->shutdown(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* If we reexecute ourselves, we keep the root cgroup

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering manager_undo_generators(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering bus_done(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering hashmap_free(m->units);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering hashmap_free(m->jobs);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering hashmap_free(m->watch_pids);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering hashmap_free(m->watch_bus);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->epoll_fd >= 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(m->epoll_fd);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->signal_watch.fd >= 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(m->signal_watch.fd);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->notify_watch.fd >= 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(m->notify_watch.fd);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->time_change_watch.fd >= 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering close_nointr_nofail(m->time_change_watch.fd);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering free(m->notify_socket);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack lookup_paths_free(&m->lookup_paths);

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack strv_free(m->environment);

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

05a08cb60f02970e8476306074c70ee4e6a57fb3Thomas Hindoe Paaboel Andersen strv_free(m->default_controllers);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering hashmap_free(m->cgroup_bondings);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering set_free_free(m->unit_path_cache);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

16ac401407959cbc62312e61c2dd76dbc3a0793bLennart Poettering close_pipe(m->idle_pipe);

16ac401407959cbc62312e61c2dd76dbc3a0793bLennart Poettering

ff975efb2e88dcd5221a2f0d76c4c87e85b821a8Lennart Poettering free(m->switch_root);

16ac401407959cbc62312e61c2dd76dbc3a0793bLennart Poettering free(m->switch_root_init);

16ac401407959cbc62312e61c2dd76dbc3a0793bLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering for (i = 0; i < RLIMIT_NLIMITS; i++)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering free(m->rlimit[i]);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering free(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringint manager_enumerate(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering int r = 0, q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering UnitType c;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Let's ask every type to load all units from disk/kernel

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering for (c = 0; c < _UNIT_TYPE_MAX; c++)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (unit_vtable[c]->enumerate)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if ((q = unit_vtable[c]->enumerate(m)) < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering r = q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering manager_dispatch_load_queue(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return r;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringint manager_coldplug(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering int r = 0, q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Iterator i;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Unit *u;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering char *k;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* Then, let's set up their initial state. */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering HASHMAP_FOREACH_KEY(u, k, m->units, i) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* ignore aliases */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (u->id != k)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering continue;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if ((q = unit_coldplug(u)) < 0)

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack r = q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poetteringstatic void manager_build_unit_path_cache(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering char **i;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering DIR *d = NULL;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering int r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering set_free_free(m->unit_path_cache);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(m->unit_path_cache = set_new(string_hash_func, string_compare_func))) {

82a2b6bb5e4e5d294f09af778c48974a7857afb6Lennart Poettering log_error("Failed to allocate unit path cache.");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* This simply builds a list of files we know exist, so that

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering STRV_FOREACH(i, m->lookup_paths.unit_path) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct dirent *de;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!(d = opendir(*i))) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_error("Failed to open directory: %m");

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering continue;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering while ((de = readdir(d))) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering char *p;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (ignore_file(de->d_name))

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering continue;

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!p) {

82a2b6bb5e4e5d294f09af778c48974a7857afb6Lennart Poettering r = -ENOMEM;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if ((r = set_put(m->unit_path_cache, p)) < 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering free(p);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering goto fail;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering closedir(d);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering d = NULL;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringfail:

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_error("Failed to build unit path cache: %s", strerror(-r));

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering set_free_free(m->unit_path_cache);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->unit_path_cache = NULL;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (d)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering closedir(d);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringint manager_startup(Manager *m, FILE *serialization, FDSet *fds) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering int r, q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering manager_run_generators(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering r = lookup_paths_init(

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering &m->lookup_paths, m->running_as, true,

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->generator_unit_path,

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->generator_unit_path_early,

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->generator_unit_path_late);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (r < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering manager_build_unit_path_cache(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* If we will deserialize make sure that during enumeration

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (serialization)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->n_reloading ++;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* First, enumerate what we can from all config files */

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering r = manager_enumerate(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* Second, deserialize if there is something to deserialize */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (serialization) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering q = manager_deserialize(m, serialization, fds);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (q < 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering r = q;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* Third, fire things up! */

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering q = manager_coldplug(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (q < 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering r = q;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (serialization) {

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering assert(m->n_reloading > 0);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->n_reloading --;

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringint manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, DBusError *e, Job **_ret) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering int r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Transaction *tr;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(type < _JOB_TYPE_MAX);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(unit);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(mode < _JOB_MODE_MAX);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (mode == JOB_ISOLATE && type != JOB_START) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering dbus_set_error(e, BUS_ERROR_INVALID_JOB_MODE, "Isolate is only valid for start.");

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -EINVAL;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (mode == JOB_ISOLATE && !unit->allow_isolate) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return -EPERM;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering }

94e15fdc4d9d96fa6607bfb4eaaea164a3aec417David Herrmann

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering log_debug("Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode));

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

e24e415e5f3af2fe86d2be9a1f1a2e8d5f8c96bfDaniel Mack job_type_collapse(&type, unit);

e24e415e5f3af2fe86d2be9a1f1a2e8d5f8c96bfDaniel Mack

e24e415e5f3af2fe86d2be9a1f1a2e8d5f8c96bfDaniel Mack tr = transaction_new();

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering if (!tr)

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return -ENOMEM;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering mode == JOB_IGNORE_DEPENDENCIES, e);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering if (r < 0)

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering goto tr_abort;

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering if (mode == JOB_ISOLATE) {

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering r = transaction_add_isolate_jobs(tr, m);

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering if (r < 0)

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering goto tr_abort;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering }

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering r = transaction_activate(tr, m, mode, e);

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering if (r < 0)

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering goto tr_abort;

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering log_debug("Enqueued job %s/%s as %u", unit->id, job_type_to_string(type), (unsigned) tr->anchor_job->id);

94e15fdc4d9d96fa6607bfb4eaaea164a3aec417David Herrmann

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering if (_ret)

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering *_ret = tr->anchor_job;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering transaction_free(tr);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering return 0;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poetteringtr_abort:

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering transaction_abort(tr);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering transaction_free(tr);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return r;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering}

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poetteringint manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, DBusError *e, Job **_ret) {

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering Unit *unit;

a9c8343e83ec09f80a76930573b2592f97ae4283Daniel Mack int r;

a9c8343e83ec09f80a76930573b2592f97ae4283Daniel Mack

a9c8343e83ec09f80a76930573b2592f97ae4283Daniel Mack assert(m);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(type < _JOB_TYPE_MAX);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(name);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(mode < _JOB_MODE_MAX);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering r = manager_load_unit(m, name, NULL, NULL, &unit);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering if (r < 0)

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return r;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return manager_add_job(m, type, unit, mode, override, e, _ret);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering}

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart PoetteringJob *manager_get_job(Manager *m, uint32_t id) {

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(m);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return hashmap_get(m->jobs, UINT32_TO_PTR(id));

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering}

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart PoetteringUnit *manager_get_unit(Manager *m, const char *name) {

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(m);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(name);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering return hashmap_get(m->units, name);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering}

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poetteringunsigned manager_dispatch_load_queue(Manager *m) {

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering Unit *u;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering unsigned n = 0;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering assert(m);

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

a9c8343e83ec09f80a76930573b2592f97ae4283Daniel Mack /* Make sure we are not run recursively */

dcc2fc01fa850e9ee36c549dc2691e7e5c71bebfLennart Poettering if (m->dispatching_load_queue)

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering return 0;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering m->dispatching_load_queue = true;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering /* Dispatches the load queue. Takes a unit from the queue and

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering while ((u = m->load_queue)) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(u->in_load_queue);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unit_load(u);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering n++;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering m->dispatching_load_queue = false;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return n;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringint manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Unit *ret;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering UnitType t;

bd5f920f1288c0d4d488629fadf067f709227030Lennart Poettering int r;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(name || path);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* This will prepare the unit for loading, but not actually

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (path && !is_path(path)) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering dbus_set_error(e, BUS_ERROR_INVALID_PATH, "Path %s is not absolute.", path);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -EINVAL;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!name)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering name = path_get_file_name(path);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering t = unit_name_to_type(name);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, false)) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -EINVAL;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ret = manager_get_unit(m, name);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (ret) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering *_ret = ret;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return 1;

deffddf1df29a5ed047feff3a0f2b765006fb71bLukas Nykryn }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ret = unit_new(m, unit_vtable[t]->object_size);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!ret)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -ENOMEM;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering if (path) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering ret->fragment_path = strdup(path);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (!ret->fragment_path) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_free(ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return -ENOMEM;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if ((r = unit_add_name(ret, name)) < 0) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_free(ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return r;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_add_to_load_queue(ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_add_to_dbus_queue(ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unit_add_to_gc_queue(ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (_ret)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering *_ret = ret;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringint manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering int r;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering /* This will load the service information files, but not actually

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering r = manager_load_unit_prepare(m, name, path, e, _ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (r != 0)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return r;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering manager_dispatch_load_queue(m);

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (_ret)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering *_ret = unit_follow_merge(*_ret);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return 0;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringvoid manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Iterator i;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Job *j;

f2341e0a87cab1558c84c933956e9181d5fb6c52Lennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(s);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(f);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering HASHMAP_FOREACH(j, s->jobs, i)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering job_dump(j, f, prefix);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringvoid manager_dump_units(Manager *s, FILE *f, const char *prefix) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Iterator i;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Unit *u;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering const char *t;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(s);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(f);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering HASHMAP_FOREACH_KEY(u, t, s->units, i)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (u->id == t)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unit_dump(u, f, prefix);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringvoid manager_clear_jobs(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Job *j;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering while ((j = hashmap_first(m->jobs)))

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering /* No need to recurse. We're cancelling all jobs. */

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering job_finish_and_invalidate(j, JOB_CANCELED, false);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringunsigned manager_dispatch_run_queue(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Job *j;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering unsigned n = 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (m->dispatching_run_queue)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return 0;

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering m->dispatching_run_queue = true;

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering while ((j = m->run_queue)) {

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering assert(j->installed);

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering assert(j->in_run_queue);

2f671520ebade4877cbf6aca3572a5f8c4e1871dLennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering job_run_and_invalidate(j);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering n++;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering m->dispatching_run_queue = false;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return n;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringunsigned manager_dispatch_dbus_queue(Manager *m) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Job *j;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering Unit *u;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering unsigned n = 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering assert(m);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering if (m->dispatching_dbus_queue)

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering return 0;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering m->dispatching_dbus_queue = true;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering while ((u = m->dbus_unit_queue)) {

1c2e9646e4a1720fc8ad35c705c195ae1a2c5ce0Lennart Poettering assert(u->in_dbus_queue);

d69a7ceaed77992105342a056fe68769c2e6d3bdJohannes Hölzl

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering bus_unit_send_change_signal(u);

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering n++;

d79acc309327f8c0863bd3da8b93d926a1c93ba1David Herrmann }

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering while ((j = m->dbus_job_queue)) {

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering assert(j->in_dbus_queue);

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering bus_job_send_change_signal(j);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering n++;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering }

5892a914d173e4b968d2a14fbf717373dee3999aDaniel Mack

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering m->dispatching_dbus_queue = false;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return n;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering}

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poetteringstatic int manager_process_notify_fd(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering ssize_t n;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering for (;;) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering char buf[4096];

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering struct msghdr msghdr;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct iovec iovec;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct ucred *ucred;

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering union {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering struct cmsghdr cmsghdr;

700ff4d97311902a440109a2c081731ab6ae8a20Lennart Poettering uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering } control;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering Unit *u;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering char **tags;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(iovec);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering iovec.iov_base = buf;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering iovec.iov_len = sizeof(buf)-1;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(control);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering zero(msghdr);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering msghdr.msg_iov = &iovec;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering msghdr.msg_iovlen = 1;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering msghdr.msg_control = &control;

e05ad7bcc87f652cea321224f8eeb32e21d18e0cLennart Poettering msghdr.msg_controllen = sizeof(control);

e05ad7bcc87f652cea321224f8eeb32e21d18e0cLennart Poettering

e05ad7bcc87f652cea321224f8eeb32e21d18e0cLennart Poettering if ((n = recvmsg(m->notify_watch.fd, &msghdr, MSG_DONTWAIT)) <= 0) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (n >= 0)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -EIO;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (errno == EAGAIN || errno == EINTR)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering break;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return -errno;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering control.cmsghdr.cmsg_level != SOL_SOCKET ||

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_warning("Received notify message without credentials. Ignoring.");

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering continue;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(u = hashmap_get(m->watch_pids, LONG_TO_PTR(ucred->pid))))

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (!(u = cgroup_unit_by_pid(m, ucred->pid))) {

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering log_warning("Cannot find unit for notify message of PID %lu.", (unsigned long) ucred->pid);

a4152e3fe28b53b8919cc404dd7eca7ead1bf9bdLennart Poettering continue;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert((size_t) n < sizeof(buf));

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering buf[n] = 0;

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering if (!(tags = strv_split(buf, "\n\r")))

0faacd470dfbd24f4c6504da6f04213aa05f9d19Lennart Poettering return -ENOMEM;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering log_debug("Got notification message for unit %s", u->id);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering if (UNIT_VTABLE(u)->notify_message)

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering strv_free(tags);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering }

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering return 0;

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering}

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poetteringstatic int manager_dispatch_sigchld(Manager *m) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering assert(m);

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering for (;;) {

e821075a23fdfa3ca7738fc30bb2d4c430fe10c0Lennart Poettering siginfo_t si;

Unit *u;

int r;

zero(si);

/* First we call waitd() for a PID and do not reap the

if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {

if (errno == ECHILD)

break;

if (errno == EINTR)

continue;

return -errno;

}

if (si.si_pid <= 0)

break;

if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {

char *name = NULL;

get_process_comm(si.si_pid, &name);

log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name));

free(name);

}

/* Let's flush any message the dying child might still

if ((r = manager_process_notify_fd(m)) < 0)

return r;

/* And now figure out the unit this belongs to */

if (!(u = hashmap_get(m->watch_pids, LONG_TO_PTR(si.si_pid))))

u = cgroup_unit_by_pid(m, si.si_pid);

/* And now, we actually reap the zombie. */

if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {

if (errno == EINTR)

continue;

return -errno;

}

if (si.si_code != CLD_EXITED && si.si_code != CLD_KILLED && si.si_code != CLD_DUMPED)

continue;

log_debug("Child %lu died (code=%s, status=%i/%s)",

(long unsigned) si.si_pid,

sigchld_code_to_string(si.si_code),

si.si_status,

strna(si.si_code == CLD_EXITED

? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)

: signal_to_string(si.si_status)));

if (!u)

continue;

log_debug("Child %lu belongs to %s", (long unsigned) si.si_pid, u->id);

hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid));

UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status);

}

return 0;

}

static int manager_start_target(Manager *m, const char *name, JobMode mode) {

int r;

DBusError error;

dbus_error_init(&error);

log_debug("Activating special unit %s", name);

if ((r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL)) < 0)

log_error("Failed to enqueue %s job: %s", name, bus_error(&error, r));

dbus_error_free(&error);

return r;

}

static int manager_process_signal_fd(Manager *m) {

ssize_t n;

struct signalfd_siginfo sfsi;

bool sigchld = false;

assert(m);

for (;;) {

if ((n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi))) != sizeof(sfsi)) {

if (n >= 0)

return -EIO;

if (errno == EINTR || errno == EAGAIN)

break;

return -errno;

}

if (sfsi.ssi_pid > 0) {

char *p = NULL;

get_process_comm(sfsi.ssi_pid, &p);

log_debug("Received SIG%s from PID %lu (%s).",

signal_to_string(sfsi.ssi_signo),

(unsigned long) sfsi.ssi_pid, strna(p));

free(p);

} else

log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo));

switch (sfsi.ssi_signo) {

case SIGCHLD:

sigchld = true;

break;

case SIGTERM:

if (m->running_as == SYSTEMD_SYSTEM) {

/* This is for compatibility with the

m->exit_code = MANAGER_REEXECUTE;

break;

}

/* Fall through */

case SIGINT:

if (m->running_as == SYSTEMD_SYSTEM) {

manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE);

break;

}

/* Run the exit target if there is one, if not, just exit. */

if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {

m->exit_code = MANAGER_EXIT;

return 0;

}

break;

case SIGWINCH:

if (m->running_as == SYSTEMD_SYSTEM)

manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);

/* This is a nop on non-init */

break;

case SIGPWR:

if (m->running_as == SYSTEMD_SYSTEM)

manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);

/* This is a nop on non-init */

break;

case SIGUSR1: {

Unit *u;

u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);

if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {

log_info("Trying to reconnect to bus...");

bus_init(m, true);

}

if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {

log_info("Loading D-Bus service...");

manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);

}

break;

}

case SIGUSR2: {

FILE *f;

char *dump = NULL;

size_t size;

if (!(f = open_memstream(&dump, &size))) {

log_warning("Failed to allocate memory stream.");

break;

}

manager_dump_units(m, f, "\t");

manager_dump_jobs(m, f, "\t");

if (ferror(f)) {

fclose(f);

free(dump);

log_warning("Failed to write status stream");

break;

}

fclose(f);

log_dump(LOG_INFO, dump);

free(dump);

break;

}

case SIGHUP:

m->exit_code = MANAGER_RELOAD;

break;

default: {

/* Starting SIGRTMIN+0 */

static const char * const target_table[] = {

[0] = SPECIAL_DEFAULT_TARGET,

[1] = SPECIAL_RESCUE_TARGET,

[2] = SPECIAL_EMERGENCY_TARGET,

[3] = SPECIAL_HALT_TARGET,

[4] = SPECIAL_POWEROFF_TARGET,

[5] = SPECIAL_REBOOT_TARGET,

[6] = SPECIAL_KEXEC_TARGET

};

/* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */

static const ManagerExitCode code_table[] = {

[0] = MANAGER_HALT,

[1] = MANAGER_POWEROFF,

[2] = MANAGER_REBOOT,

[3] = MANAGER_KEXEC

};

if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&

(int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {

int idx = (int) sfsi.ssi_signo - SIGRTMIN;

manager_start_target(m, target_table[idx],

(idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);

break;

}

if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&

(int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {

m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];

break;

}

switch (sfsi.ssi_signo - SIGRTMIN) {

case 20:

log_debug("Enabling showing of status.");

manager_set_show_status(m, true);

break;

case 21:

log_debug("Disabling showing of status.");

manager_set_show_status(m, false);

break;

case 22:

log_set_max_level(LOG_DEBUG);

log_notice("Setting log level to debug.");

break;

case 23:

log_set_max_level(LOG_INFO);

log_notice("Setting log level to info.");

break;

case 24:

if (m->running_as == SYSTEMD_USER) {

m->exit_code = MANAGER_EXIT;

return 0;

}

/* This is a nop on init */

break;

case 26:

log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);

log_notice("Setting log target to journal-or-kmsg.");

break;

case 27:

log_set_target(LOG_TARGET_CONSOLE);

log_notice("Setting log target to console.");

break;

case 28:

log_set_target(LOG_TARGET_KMSG);

log_notice("Setting log target to kmsg.");

break;

case 29:

log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);

log_notice("Setting log target to syslog-or-kmsg.");

break;

default:

log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));

}

}

}

}

if (sigchld)

return manager_dispatch_sigchld(m);

return 0;

}

static int process_event(Manager *m, struct epoll_event *ev) {

int r;

Watch *w;

assert(m);

assert(ev);

assert_se(w = ev->data.ptr);

if (w->type == WATCH_INVALID)

return 0;

switch (w->type) {

case WATCH_SIGNAL:

/* An incoming signal? */

if (ev->events != EPOLLIN)

return -EINVAL;

if ((r = manager_process_signal_fd(m)) < 0)

return r;