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-rw-r--r--src/core/dbus-manager.c5
-rw-r--r--src/core/dbus.c66
-rw-r--r--src/core/dbus.h2
-rw-r--r--src/core/manager.c13
-rw-r--r--src/core/service.c14
-rw-r--r--src/core/service.h1
-rw-r--r--src/core/socket.c12
7 files changed, 92 insertions, 21 deletions
diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c
index 61bd0f8d5f..8a523cc8ac 100644
--- a/src/core/dbus-manager.c
+++ b/src/core/dbus-manager.c
@@ -229,7 +229,10 @@ static int property_set_log_level(
if (r < 0)
return r;
- return log_set_max_level_from_string(t);
+ r = log_set_max_level_from_string(t);
+ if (r == 0)
+ log_info("Setting log level to %s.", t);
+ return r;
}
static int property_get_n_names(
diff --git a/src/core/dbus.c b/src/core/dbus.c
index e7ee216f0e..1d89b9e250 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -734,9 +734,11 @@ static int bus_on_connection(sd_event_source *s, int fd, uint32_t revents, void
return 0;
}
-static int bus_list_names(Manager *m, sd_bus *bus) {
+int manager_sync_bus_names(Manager *m, sd_bus *bus) {
_cleanup_strv_free_ char **names = NULL;
- char **i;
+ const char *name;
+ Iterator i;
+ Unit *u;
int r;
assert(m);
@@ -746,15 +748,55 @@ static int bus_list_names(Manager *m, sd_bus *bus) {
if (r < 0)
return log_error_errno(r, "Failed to get initial list of names: %m");
- /* This is a bit hacky, we say the owner of the name is the
- * name itself, because we don't want the extra traffic to
- * figure out the real owner. */
- STRV_FOREACH(i, names) {
- Unit *u;
+ /* We have to synchronize the current bus names with the
+ * list of active services. To do this, walk the list of
+ * all units with bus names. */
+ HASHMAP_FOREACH_KEY(u, name, m->watch_bus, i) {
+ Service *s = SERVICE(u);
+
+ assert(s);
- u = hashmap_get(m->watch_bus, *i);
- if (u)
- UNIT_VTABLE(u)->bus_name_owner_change(u, *i, NULL, *i);
+ if (!streq_ptr(s->bus_name, name)) {
+ log_unit_warning(u, "Bus name has changed from %s → %s, ignoring.", s->bus_name, name);
+ continue;
+ }
+
+ /* Check if a service's bus name is in the list of currently
+ * active names */
+ if (strv_contains(names, name)) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ const char *unique;
+
+ /* If it is, determine its current owner */
+ r = sd_bus_get_name_creds(bus, name, SD_BUS_CREDS_UNIQUE_NAME, &creds);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get bus name owner %s: %m", name);
+ continue;
+ }
+
+ r = sd_bus_creds_get_unique_name(creds, &unique);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get unique name for %s: %m", name);
+ continue;
+ }
+
+ /* Now, let's compare that to the previous bus owner, and
+ * if it's still the same, all is fine, so just don't
+ * bother the service. Otherwise, the name has apparently
+ * changed, so synthesize a name owner changed signal. */
+
+ if (!streq_ptr(unique, s->bus_name_owner))
+ UNIT_VTABLE(u)->bus_name_owner_change(u, name, s->bus_name_owner, unique);
+ } else {
+ /* So, the name we're watching is not on the bus.
+ * This either means it simply hasn't appeared yet,
+ * or it was lost during the daemon reload.
+ * Check if the service has a stored name owner,
+ * and synthesize a name loss signal in this case. */
+
+ if (s->bus_name_owner)
+ UNIT_VTABLE(u)->bus_name_owner_change(u, name, s->bus_name_owner, NULL);
+ }
}
return 0;
@@ -808,7 +850,9 @@ static int bus_setup_api(Manager *m, sd_bus *bus) {
if (r < 0)
return log_error_errno(r, "Failed to register name: %m");
- bus_list_names(m, bus);
+ r = manager_sync_bus_names(m, bus);
+ if (r < 0)
+ return r;
log_debug("Successfully connected to API bus.");
return 0;
diff --git a/src/core/dbus.h b/src/core/dbus.h
index 4f06ad11c4..ff761668f3 100644
--- a/src/core/dbus.h
+++ b/src/core/dbus.h
@@ -34,6 +34,8 @@ void bus_track_serialize(sd_bus_track *t, FILE *f);
int bus_track_deserialize_item(char ***l, const char *line);
int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l);
+int manager_sync_bus_names(Manager *m, sd_bus *bus);
+
int bus_foreach_bus(Manager *m, sd_bus_track *subscribed2, int (*send_message)(sd_bus *bus, void *userdata), void *userdata);
int bus_verify_manage_units_async(Manager *m, sd_bus_message *call, sd_bus_error *error);
diff --git a/src/core/manager.c b/src/core/manager.c
index 82563840c4..5b17f16ccc 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -1888,23 +1888,21 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
switch (sfsi.ssi_signo - SIGRTMIN) {
case 20:
- log_debug("Enabling showing of status.");
manager_set_show_status(m, SHOW_STATUS_YES);
break;
case 21:
- log_debug("Disabling showing of status.");
manager_set_show_status(m, SHOW_STATUS_NO);
break;
case 22:
log_set_max_level(LOG_DEBUG);
- log_notice("Setting log level to debug.");
+ log_info("Setting log level to debug.");
break;
case 23:
log_set_max_level(LOG_INFO);
- log_notice("Setting log level to info.");
+ log_info("Setting log level to info.");
break;
case 24:
@@ -2579,6 +2577,10 @@ int manager_reload(Manager *m) {
/* Third, fire things up! */
manager_coldplug(m);
+ /* Sync current state of bus names with our set of listening units */
+ if (m->api_bus)
+ manager_sync_bus_names(m, m->api_bus);
+
assert(m->n_reloading > 0);
m->n_reloading--;
@@ -2964,6 +2966,9 @@ void manager_set_show_status(Manager *m, ShowStatus mode) {
if (m->running_as != MANAGER_SYSTEM)
return;
+ if (m->show_status != mode)
+ log_debug("%s showing of status.",
+ mode == SHOW_STATUS_NO ? "Disabling" : "Enabling");
m->show_status = mode;
if (mode > 0)
diff --git a/src/core/service.c b/src/core/service.c
index 41a729c421..c5b689a35c 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -323,6 +323,8 @@ static void service_done(Unit *u) {
s->bus_name = mfree(s->bus_name);
}
+ s->bus_name_owner = mfree(s->bus_name_owner);
+
s->bus_endpoint_fd = safe_close(s->bus_endpoint_fd);
service_close_socket_fd(s);
service_connection_unref(s);
@@ -2122,6 +2124,7 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good));
+ unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner);
r = unit_serialize_item_escaped(u, f, "status-text", s->status_text);
if (r < 0)
@@ -2249,6 +2252,10 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
log_unit_debug(u, "Failed to parse bus-name-good value: %s", value);
else
s->bus_name_good = b;
+ } else if (streq(key, "bus-name-owner")) {
+ r = free_and_strdup(&s->bus_name_owner, value);
+ if (r < 0)
+ log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value);
} else if (streq(key, "status-text")) {
char *t;
@@ -3134,6 +3141,13 @@ static void service_bus_name_owner_change(
s->bus_name_good = !!new_owner;
+ /* Track the current owner, so we can reconstruct changes after a daemon reload */
+ r = free_and_strdup(&s->bus_name_owner, new_owner);
+ if (r < 0) {
+ log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner);
+ return;
+ }
+
if (s->type == SERVICE_DBUS) {
/* service_enter_running() will figure out what to
diff --git a/src/core/service.h b/src/core/service.h
index d0faad88e0..19efbccfc7 100644
--- a/src/core/service.h
+++ b/src/core/service.h
@@ -172,6 +172,7 @@ struct Service {
bool reset_cpu_usage:1;
char *bus_name;
+ char *bus_name_owner; /* unique name of the current owner */
char *status_text;
int status_errno;
diff --git a/src/core/socket.c b/src/core/socket.c
index 7beec3644e..d6b0c963e8 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -156,14 +156,16 @@ static void socket_done(Unit *u) {
s->tcp_congestion = mfree(s->tcp_congestion);
s->bind_to_device = mfree(s->bind_to_device);
- free(s->smack);
- free(s->smack_ip_in);
- free(s->smack_ip_out);
+ s->smack = mfree(s->smack);
+ s->smack_ip_in = mfree(s->smack_ip_in);
+ s->smack_ip_out = mfree(s->smack_ip_out);
strv_free(s->symlinks);
- free(s->user);
- free(s->group);
+ s->user = mfree(s->user);
+ s->group = mfree(s->group);
+
+ s->fdname = mfree(s->fdname);
s->timer_event_source = sd_event_source_unref(s->timer_event_source);
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-26 19:19:28 +0000