X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fmachine%2Fmachined.c;h=f91f0671356b19f8acf4d5d5d6c23fdcc5a50581;hb=b6e676ce41508e2aeea22202fc8f234126177f52;hp=a5f529384befd2011e660b75148e0e723acc3cef;hpb=d3e84ddb885e9d5f0ae9930eb905910e3a81f157;p=elogind.git

diff --git a/src/machine/machined.c b/src/machine/machined.c
index a5f529384..f91f06713 100644
--- a/src/machine/machined.c
+++ b/src/machine/machined.c
@@ -20,20 +20,15 @@
 ***/
 
 #include <errno.h>
-#include <pwd.h>
-#include <fcntl.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/epoll.h>
 
 #include "sd-daemon.h"
-
-#include "strv.h"
-#include "conf-parser.h"
 #include "cgroup-util.h"
-#include "mkdir.h"
 #include "bus-util.h"
 #include "bus-error.h"
+#include "label.h"
+#include "machine-image.h"
 #include "machined.h"
 
 Manager *manager_new(void) {
@@ -44,26 +39,29 @@ Manager *manager_new(void) {
         if (!m)
                 return NULL;
 
-        m->machines = hashmap_new(string_hash_func, string_compare_func);
-        m->machine_units = hashmap_new(string_hash_func, string_compare_func);
-        m->machine_leaders = hashmap_new(trivial_hash_func, trivial_compare_func);
+        m->machines = hashmap_new(&string_hash_ops);
+        m->machine_units = hashmap_new(&string_hash_ops);
+        m->machine_leaders = hashmap_new(NULL);
 
         if (!m->machines || !m->machine_units || !m->machine_leaders) {
                 manager_free(m);
                 return NULL;
         }
 
-        r = sd_event_new(&m->event);
+        r = sd_event_default(&m->event);
         if (r < 0) {
                 manager_free(m);
                 return NULL;
         }
 
+        sd_event_set_watchdog(m->event, true);
+
         return m;
 }
 
 void manager_free(Manager *m) {
         Machine *machine;
+        Image *i;
 
         assert(m);
 
@@ -74,51 +72,19 @@ void manager_free(Manager *m) {
         hashmap_free(m->machine_units);
         hashmap_free(m->machine_leaders);
 
-        sd_bus_unref(m->bus);
-        sd_event_unref(m->event);
-
-        free(m);
-}
-
-int manager_add_machine(Manager *m, const char *name, Machine **_machine) {
-        Machine *machine;
-
-        assert(m);
-        assert(name);
-
-        machine = hashmap_get(m->machines, name);
-        if (!machine) {
-                machine = machine_new(m, name);
-                if (!machine)
-                        return -ENOMEM;
-        }
+        while ((i = hashmap_steal_first(m->image_cache)))
+                image_unref(i);
 
-        if (_machine)
-                *_machine = machine;
+        hashmap_free(m->image_cache);
 
-        return 0;
-}
+        sd_event_source_unref(m->image_cache_defer_event);
 
-int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) {
-        _cleanup_free_ char *unit = NULL;
-        Machine *mm;
-        int r;
+        bus_verify_polkit_async_registry_free(m->polkit_registry);
 
-        assert(m);
-        assert(pid >= 1);
-        assert(machine);
-
-        r = cg_pid_get_unit(pid, &unit);
-        if (r < 0)
-                mm = hashmap_get(m->machine_leaders, UINT_TO_PTR(pid));
-        else
-                mm = hashmap_get(m->machine_units, unit);
-
-        if (!mm)
-                return 0;
+        sd_bus_unref(m->bus);
+        sd_event_unref(m->event);
 
-        *machine = mm;
-        return 1;
+        free(m);
 }
 
 int manager_enumerate_machines(Manager *m) {
@@ -134,7 +100,7 @@ int manager_enumerate_machines(Manager *m) {
                 if (errno == ENOENT)
                         return 0;
 
-                log_error("Failed to open /run/systemd/machines: %m");
+                log_error_errno(errno, "Failed to open /run/systemd/machines: %m");
                 return -errno;
         }
 
@@ -145,9 +111,13 @@ int manager_enumerate_machines(Manager *m) {
                 if (!dirent_is_file(de))
                         continue;
 
+                /* Ignore symlinks that map the unit name to the machine */
+                if (startswith(de->d_name, "unit:"))
+                        continue;
+
                 k = manager_add_machine(m, de->d_name, &machine);
                 if (k < 0) {
-                        log_error("Failed to add machine by file name %s: %s", de->d_name, strerror(-k));
+                        log_error_errno(k, "Failed to add machine by file name %s: %m", de->d_name);
 
                         r = k;
                         continue;
@@ -170,31 +140,32 @@ static int manager_connect_bus(Manager *m) {
         assert(m);
         assert(!m->bus);
 
-        r = sd_bus_open_system(&m->bus);
-        if (r < 0) {
-                log_error("Failed to connect to system bus: %s", strerror(-r));
-                return r;
-        }
+        r = sd_bus_default_system(&m->bus);
+        if (r < 0)
+                return log_error_errno(r, "Failed to connect to system bus: %m");
 
-        r = sd_bus_add_object_vtable(m->bus, "/org/freedesktop/machine1", "org.freedesktop.machine1.Manager", manager_vtable, m);
-        if (r < 0) {
-                log_error("Failed to add manager object vtable: %s", strerror(-r));
-                return r;
-        }
+        r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/machine1", "org.freedesktop.machine1.Manager", manager_vtable, m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add manager object vtable: %m");
 
-        r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/machine1/machine", "org.freedesktop.machine1.Machine", machine_vtable, machine_object_find, m);
-        if (r < 0) {
-                log_error("Failed to add machine object vtable: %s", strerror(-r));
-                return r;
-        }
+        r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/machine1/machine", "org.freedesktop.machine1.Machine", machine_vtable, machine_object_find, m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add machine object vtable: %m");
 
-        r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/machine1/machine", machine_node_enumerator, m);
-        if (r < 0) {
-                log_error("Failed to add machine enumerator: %s", strerror(-r));
-                return r;
-        }
+        r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/machine1/machine", machine_node_enumerator, m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add machine enumerator: %m");
+
+        r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/machine1/image", "org.freedesktop.machine1.Image", image_vtable, image_object_find, m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add image object vtable: %m");
+
+        r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/machine1/image", image_node_enumerator, m);
+        if (r < 0)
+                return log_error_errno(r, "Failed to add image enumerator: %m");
 
         r = sd_bus_add_match(m->bus,
+                             NULL,
                              "type='signal',"
                              "sender='org.freedesktop.systemd1',"
                              "interface='org.freedesktop.systemd1.Manager',"
@@ -202,12 +173,11 @@ static int manager_connect_bus(Manager *m) {
                              "path='/org/freedesktop/systemd1'",
                              match_job_removed,
                              m);
-        if (r < 0) {
-                log_error("Failed to add match for JobRemoved: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to add match for JobRemoved: %m");
 
         r = sd_bus_add_match(m->bus,
+                             NULL,
                              "type='signal',"
                              "sender='org.freedesktop.systemd1',"
                              "interface='org.freedesktop.systemd1.Manager',"
@@ -215,24 +185,22 @@ static int manager_connect_bus(Manager *m) {
                              "path='/org/freedesktop/systemd1'",
                              match_unit_removed,
                              m);
-        if (r < 0) {
-                log_error("Failed to add match for UnitRemoved: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to add match for UnitRemoved: %m");
 
         r = sd_bus_add_match(m->bus,
+                             NULL,
                              "type='signal',"
                              "sender='org.freedesktop.systemd1',"
                              "interface='org.freedesktop.DBus.Properties',"
                              "member='PropertiesChanged'",
                              match_properties_changed,
                              m);
-        if (r < 0) {
-                log_error("Failed to add match for PropertiesChanged: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to add match for PropertiesChanged: %m");
 
         r = sd_bus_add_match(m->bus,
+                             NULL,
                              "type='signal',"
                              "sender='org.freedesktop.systemd1',"
                              "interface='org.freedesktop.systemd1.Manager',"
@@ -240,10 +208,8 @@ static int manager_connect_bus(Manager *m) {
                              "path='/org/freedesktop/systemd1'",
                              match_reloading,
                              m);
-        if (r < 0) {
-                log_error("Failed to add match for Reloading: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to add match for Reloading: %m");
 
         r = sd_bus_call_method(
                         m->bus,
@@ -258,22 +224,13 @@ static int manager_connect_bus(Manager *m) {
                 return r;
         }
 
-        r = sd_bus_request_name(m->bus, "org.freedesktop.machine1", SD_BUS_NAME_DO_NOT_QUEUE);
-        if (r < 0) {
-                log_error("Failed to register name: %s", strerror(-r));
-                return r;
-        }
-
-        if (r != SD_BUS_NAME_PRIMARY_OWNER)  {
-                log_error("Failed to acquire name.");
-                return -EEXIST;
-        }
+        r = sd_bus_request_name(m->bus, "org.freedesktop.machine1", 0);
+        if (r < 0)
+                return log_error_errno(r, "Failed to register name: %m");
 
         r = sd_bus_attach_event(m->bus, m->event, 0);
-        if (r < 0) {
-                log_error("Failed to attach bus to event loop: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to attach bus to event loop: %m");
 
         return 0;
 }
@@ -319,26 +276,23 @@ int manager_startup(Manager *m) {
         return 0;
 }
 
-int manager_run(Manager *m) {
-        int r;
+static bool check_idle(void *userdata) {
+        Manager *m = userdata;
 
-        assert(m);
+        manager_gc(m, true);
 
-        for (;;) {
-                r = sd_event_get_state(m->event);
-                if (r < 0)
-                        return r;
-                if (r == SD_EVENT_FINISHED)
-                        return 0;
-
-                manager_gc(m, true);
+        return hashmap_isempty(m->machines);
+}
 
-                r = sd_event_run(m->event, (uint64_t) -1);
-                if (r < 0)
-                        return r;
-        }
+int manager_run(Manager *m) {
+        assert(m);
 
-        return 0;
+        return bus_event_loop_with_idle(
+                        m->event,
+                        m->bus,
+                        "org.freedesktop.machine1",
+                        DEFAULT_EXIT_USEC,
+                        check_idle, m);
 }
 
 int main(int argc, char *argv[]) {
@@ -365,6 +319,8 @@ int main(int argc, char *argv[]) {
          * check stays in. */
         mkdir_label("/run/systemd/machines", 0755);
 
+        assert_se(sigprocmask_many(SIG_BLOCK, SIGCHLD, -1) >= 0);
+
         m = manager_new();
         if (!m) {
                 r = log_oom();
@@ -373,11 +329,11 @@ int main(int argc, char *argv[]) {
 
         r = manager_startup(m);
         if (r < 0) {
-                log_error("Failed to fully start up daemon: %s", strerror(-r));
+                log_error_errno(r, "Failed to fully start up daemon: %m");
                 goto finish;
         }
 
-        log_debug("systemd-machined running as pid %lu", (unsigned long) getpid());
+        log_debug("systemd-machined running as pid "PID_FMT, getpid());
 
         sd_notify(false,
                   "READY=1\n"
@@ -385,12 +341,9 @@ int main(int argc, char *argv[]) {
 
         r = manager_run(m);
 
-        log_debug("systemd-machined stopped as pid %lu", (unsigned long) getpid());
+        log_debug("systemd-machined stopped as pid "PID_FMT, getpid());
 
 finish:
-        sd_notify(false,
-                  "STATUS=Shutting down...");
-
         if (m)
                 manager_free(m);