Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 177 insertions, 0 deletions

diff --git a/src/portable/portabled.c b/src/portable/portabled.c
new file mode 100644
index 0000000..136c5fa
--- /dev/null
+++ b/src/portable/portabled.c
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "sd-bus.h"
+
+#include "alloc-util.h"
+#include "bus-log-control-api.h"
+#include "bus-polkit.h"
+#include "common-signal.h"
+#include "constants.h"
+#include "daemon-util.h"
+#include "main-func.h"
+#include "portabled-bus.h"
+#include "portabled-image-bus.h"
+#include "portabled.h"
+#include "process-util.h"
+#include "service-util.h"
+#include "signal-util.h"
+
+static Manager* manager_unref(Manager *m);
+DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref);
+
+static int manager_new(Manager **ret) {
+        _cleanup_(manager_unrefp) Manager *m = NULL;
+        int r;
+
+        assert(ret);
+
+        m = new0(Manager, 1);
+        if (!m)
+                return -ENOMEM;
+
+        r = sd_event_default(&m->event);
+        if (r < 0)
+                return r;
+
+        r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
+        if (r < 0)
+                return r;
+
+        r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
+        if (r < 0)
+                return r;
+
+        r = sd_event_add_signal(m->event, NULL, SIGRTMIN+18, sigrtmin18_handler, NULL);
+        if (r < 0)
+                return r;
+
+        r = sd_event_add_memory_pressure(m->event, NULL, NULL, NULL);
+        if (r < 0)
+                log_debug_errno(r, "Failed allocate memory pressure event source, ignoring: %m");
+
+        (void) sd_event_set_watchdog(m->event, true);
+
+        *ret = TAKE_PTR(m);
+        return 0;
+}
+
+static Manager* manager_unref(Manager *m) {
+        assert(m);
+
+        hashmap_free(m->image_cache);
+
+        sd_event_source_unref(m->image_cache_defer_event);
+
+        bus_verify_polkit_async_registry_free(m->polkit_registry);
+
+        sd_bus_flush_close_unref(m->bus);
+        sd_event_unref(m->event);
+
+        return mfree(m);
+}
+
+static int manager_connect_bus(Manager *m) {
+        int r;
+
+        assert(m);
+        assert(!m->bus);
+
+        r = sd_bus_default_system(&m->bus);
+        if (r < 0)
+                return log_error_errno(r, "Failed to connect to system bus: %m");
+
+        r = bus_add_implementation(m->bus, &manager_object, m);
+        if (r < 0)
+                return r;
+
+        r = bus_log_control_api_register(m->bus);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.portable1", 0, NULL, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to request name: %m");
+
+        r = sd_bus_attach_event(m->bus, m->event, 0);
+        if (r < 0)
+                return log_error_errno(r, "Failed to attach bus to event loop: %m");
+
+        (void) sd_bus_set_exit_on_disconnect(m->bus, true);
+
+        return 0;
+}
+
+static int manager_startup(Manager *m) {
+        int r;
+
+        assert(m);
+
+        r = manager_connect_bus(m);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static bool check_idle(void *userdata) {
+        Manager *m = userdata;
+
+        return !m->operations;
+}
+
+static int manager_run(Manager *m) {
+        assert(m);
+
+        return bus_event_loop_with_idle(
+                        m->event,
+                        m->bus,
+                        "org.freedesktop.portable1",
+                        DEFAULT_EXIT_USEC,
+                        check_idle, m);
+}
+
+static int run(int argc, char *argv[]) {
+        _cleanup_(manager_unrefp) Manager *m = NULL;
+        int r;
+
+        log_setup();
+
+        r = service_parse_argv("systemd-portabled.service",
+                               "Manage registrations of portable images.",
+                               BUS_IMPLEMENTATIONS(&manager_object,
+                                                   &log_control_object),
+                               argc, argv);
+        if (r <= 0)
+                return r;
+
+        umask(0022);
+
+        if (argc != 1)
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments.");
+
+        assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, SIGTERM, SIGINT, SIGRTMIN+18, -1) >= 0);
+
+        r = manager_new(&m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to allocate manager object: %m");
+
+        r = manager_startup(m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to fully start up daemon: %m");
+
+        log_debug("systemd-portabled running as pid " PID_FMT, getpid_cached());
+        r = sd_notify(false, NOTIFY_READY);
+        if (r < 0)
+                log_warning_errno(r, "Failed to send readiness notification, ignoring: %m");
+
+        r = manager_run(m);
+
+        (void) sd_notify(false, NOTIFY_STOPPING);
+        log_debug("systemd-portabled stopped as pid " PID_FMT, getpid_cached());
+        return r;
+}
+
+DEFINE_MAIN_FUNCTION(run);