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-rw-r--r--src/network/networkd-link.c68
-rw-r--r--src/network/networkd-link.h1
-rw-r--r--src/network/networkd-manager.c101
-rw-r--r--src/network/networkd.h2
4 files changed, 156 insertions, 16 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index a8d9bc0a13..22864bd403 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1656,6 +1656,57 @@ int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
return 0;
}
+static int link_carrier_gained(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (link->network) {
+ r = link_acquire_conf(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int link_carrier_lost(Link *link) {
+ int r;
+
+ assert(link);
+
+ r = link_stop_clients(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+
+ return 0;
+}
+
+int link_carrier_reset(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (link_has_carrier(link)) {
+ r = link_carrier_lost(link);
+ if (r < 0)
+ return r;
+
+ r = link_carrier_gained(link);
+ if (r < 0)
+ return r;
+
+ log_link_info(link, "reset carrier");
+ }
+
+ return 0;
+}
+
+
int link_update(Link *link, sd_rtnl_message *m) {
struct ether_addr mac;
const char *ifname;
@@ -1773,21 +1824,16 @@ int link_update(Link *link, sd_rtnl_message *m) {
if (carrier_gained) {
log_link_info(link, "gained carrier");
- if (link->network) {
- r = link_acquire_conf(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
- }
+ r = link_carrier_gained(link);
+ if (r < 0)
+ return r;
} else if (carrier_lost) {
log_link_info(link, "lost carrier");
- r = link_stop_clients(link);
- if (r < 0) {
- link_enter_failed(link);
+ r = link_carrier_lost(link);
+ if (r < 0)
return r;
- }
+
}
return 0;
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h
index 0e2f558325..81e97fa951 100644
--- a/src/network/networkd-link.h
+++ b/src/network/networkd-link.h
@@ -115,6 +115,7 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *use
int link_save(Link *link);
+int link_carrier_reset(Link *link);
bool link_has_carrier(Link *link);
int link_set_mtu(Link *link, uint32_t mtu);
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index ac207851cb..09958c40da 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -76,6 +76,99 @@ static int setup_default_address_pool(Manager *m) {
return 0;
}
+int manager_connect_bus(Manager *m);
+
+static int on_bus_retry(sd_event_source *s, usec_t usec, void *userdata) {
+ Manager *m = userdata;
+
+ assert(s);
+ assert(m);
+
+ m->bus_retry_event_source = sd_event_source_unref(m->bus_retry_event_source);
+
+ manager_connect_bus(m);
+
+ return 0;
+}
+
+static int manager_reset_all(Manager *m) {
+ Link *link;
+ Iterator i;
+ int r;
+
+ assert(m);
+
+ HASHMAP_FOREACH(link, m->links, i) {
+ r = link_carrier_reset(link);
+ if (r < 0)
+ log_link_warning_errno(link, r, "could not reset carrier: %m");
+ }
+
+ return 0;
+}
+
+static int match_prepare_for_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *ret_error) {
+ Manager *m = userdata;
+ int b, r;
+
+ assert(bus);
+ assert(bus);
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to parse PrepareForSleep signal: %m");
+ return 0;
+ }
+
+ if (b)
+ return 0;
+
+ log_debug("Coming back from suspend, resetting all connections...");
+
+ manager_reset_all(m);
+
+ return 0;
+}
+
+int manager_connect_bus(Manager *m) {
+ int r;
+
+ assert(m);
+
+ r = sd_bus_default_system(&m->bus);
+ if (r == -ENOENT) {
+ /* We failed to connect? Yuck, we must be in early
+ * boot. Let's try in 5s again. As soon as we have
+ * kdbus we can stop doing this... */
+
+ log_debug_errno(r, "Failed to connect to bus, trying again in 5s: %m");
+
+ r = sd_event_add_time(m->event, &m->bus_retry_event_source, CLOCK_MONOTONIC, now(CLOCK_MONOTONIC) + 5*USEC_PER_SEC, 0, on_bus_retry, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to install bus reconnect time event: %m");
+
+ return 0;
+ } if (r < 0)
+ return r;
+
+ r = sd_bus_attach_event(m->bus, m->event, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_add_match(m->bus, &m->prepare_for_sleep_slot,
+ "type='signal',"
+ "sender='org.freedesktop.login1',"
+ "interface='org.freedesktop.login1.Manager',"
+ "member='PrepareForSleep',"
+ "path='/org/freedesktop/login1'",
+ match_prepare_for_sleep,
+ m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match for PrepareForSleep: %m");
+
+ return 0;
+}
+
static int systemd_netlink_fd(void) {
int n, fd, rtnl_fd = -EINVAL;
@@ -124,14 +217,10 @@ int manager_new(Manager **ret) {
if (r < 0)
return r;
- r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
+ r = manager_connect_bus(m);
if (r < 0)
return r;
- r = sd_bus_default_system(&m->bus);
- if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */
- return r;
-
/* udev does not initialize devices inside containers,
* so we rely on them being already initialized before
* entering the container */
@@ -175,7 +264,9 @@ void manager_free(Manager *m) {
udev_monitor_unref(m->udev_monitor);
udev_unref(m->udev);
sd_bus_unref(m->bus);
+ sd_bus_slot_unref(m->prepare_for_sleep_slot);
sd_event_source_unref(m->udev_event_source);
+ sd_event_source_unref(m->bus_retry_event_source);
sd_event_unref(m->event);
while ((link = hashmap_first(m->links)))
diff --git a/src/network/networkd.h b/src/network/networkd.h
index 719a75b8b7..a4ac8e3503 100644
--- a/src/network/networkd.h
+++ b/src/network/networkd.h
@@ -199,7 +199,9 @@ struct AddressPool {
struct Manager {
sd_rtnl *rtnl;
sd_event *event;
+ sd_event_source *bus_retry_event_source;
sd_bus *bus;
+ sd_bus_slot *prepare_for_sleep_slot;
struct udev *udev;
struct udev_monitor *udev_monitor;
sd_event_source *udev_event_source;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-01 08:08:45 +0000