169 lines
4.4 KiB
C
169 lines
4.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include "sd-bus.h"
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#include "sd-daemon.h"
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#include "alloc-util.h"
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#include "bus-util.h"
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#include "def.h"
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#include "portabled-bus.h"
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#include "portabled-image-bus.h"
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#include "portabled.h"
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#include "process-util.h"
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#include "signal-util.h"
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static Manager* manager_unref(Manager *m);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref);
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static int manager_new(Manager **ret) {
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_cleanup_(manager_unrefp) Manager *m = NULL;
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int r;
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assert(ret);
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m = new0(Manager, 1);
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if (!m)
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return -ENOMEM;
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r = sd_event_default(&m->event);
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if (r < 0)
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return r;
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r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
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if (r < 0)
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return r;
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r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
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if (r < 0)
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return r;
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(void) sd_event_set_watchdog(m->event, true);
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*ret = TAKE_PTR(m);
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return 0;
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}
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static Manager* manager_unref(Manager *m) {
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assert(m);
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hashmap_free_with_destructor(m->image_cache, image_unref);
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sd_event_source_unref(m->image_cache_defer_event);
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bus_verify_polkit_async_registry_free(m->polkit_registry);
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sd_bus_unref(m->bus);
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sd_event_unref(m->event);
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return mfree(m);
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}
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static int manager_connect_bus(Manager *m) {
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int r;
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assert(m);
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assert(!m->bus);
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r = sd_bus_default_system(&m->bus);
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if (r < 0)
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return log_error_errno(r, "Failed to connect to system bus: %m");
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r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/portable1", "org.freedesktop.portable1.Manager", manager_vtable, m);
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if (r < 0)
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return log_error_errno(r, "Failed to add manager object vtable: %m");
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r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/portable1/image", "org.freedesktop.portable1.Image", image_vtable, bus_image_object_find, m);
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if (r < 0)
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return log_error_errno(r, "Failed to add image object vtable: %m");
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r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/portable1/image", bus_image_node_enumerator, m);
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if (r < 0)
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return log_error_errno(r, "Failed to add image enumerator: %m");
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r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.portable1", 0, NULL, NULL);
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if (r < 0)
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return log_error_errno(r, "Failed to request name: %m");
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r = sd_bus_attach_event(m->bus, m->event, 0);
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if (r < 0)
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return log_error_errno(r, "Failed to attach bus to event loop: %m");
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(void) sd_bus_set_exit_on_disconnect(m->bus, true);
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return 0;
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}
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static int manager_startup(Manager *m) {
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int r;
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assert(m);
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r = manager_connect_bus(m);
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if (r < 0)
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return r;
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return 0;
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}
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static bool check_idle(void *userdata) {
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Manager *m = userdata;
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return !m->operations;
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}
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static int manager_run(Manager *m) {
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assert(m);
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return bus_event_loop_with_idle(
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m->event,
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m->bus,
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"org.freedesktop.portable1",
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DEFAULT_EXIT_USEC,
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check_idle, m);
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}
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int main(int argc, char *argv[]) {
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_cleanup_(manager_unrefp) Manager *m = NULL;
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int r;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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umask(0022);
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if (argc != 1) {
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log_error("This program takes no arguments.");
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r = -EINVAL;
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goto finish;
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}
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assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, SIGTERM, SIGINT, -1) >= 0);
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r = manager_new(&m);
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if (r < 0) {
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log_error_errno(r, "Failed to allocate manager object: %m");
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goto finish;
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}
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r = manager_startup(m);
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if (r < 0) {
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log_error_errno(r, "Failed to fully start up daemon: %m");
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goto finish;
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}
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log_debug("systemd-portabled running as pid " PID_FMT, getpid_cached());
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sd_notify(false,
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"READY=1\n"
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"STATUS=Processing requests...");
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r = manager_run(m);
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log_debug("systemd-portabled stopped as pid " PID_FMT, getpid_cached());
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finish:
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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