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-rw-r--r--src/network/networkd-manager.c413
-rw-r--r--src/network/networkd.c18
-rw-r--r--src/network/networkd.h4
-rw-r--r--src/network/test-network.c2
4 files changed, 203 insertions, 234 deletions
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 09958c40da..378633061e 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -169,169 +169,84 @@ int manager_connect_bus(Manager *m) {
return 0;
}
-static int systemd_netlink_fd(void) {
- int n, fd, rtnl_fd = -EINVAL;
+static int manager_udev_process_link(Manager *m, struct udev_device *device) {
+ Link *link = NULL;
+ int r, ifindex;
- n = sd_listen_fds(true);
- if (n <= 0)
- return -EINVAL;
+ assert(m);
+ assert(device);
- for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
- if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) {
- if (rtnl_fd >= 0)
- return -EINVAL;
+ if (!streq_ptr(udev_device_get_action(device), "add"))
+ return 0;
- rtnl_fd = fd;
- }
+ ifindex = udev_device_get_ifindex(device);
+ if (ifindex <= 0) {
+ log_debug("ignoring udev ADD event for device with invalid ifindex");
+ return 0;
}
- return rtnl_fd;
-}
-
-int manager_new(Manager **ret) {
- _cleanup_manager_free_ Manager *m = NULL;
- int r, fd;
-
- m = new0(Manager, 1);
- if (!m)
- return -ENOMEM;
-
- m->state_file = strdup("/run/systemd/netif/state");
- if (!m->state_file)
- return -ENOMEM;
-
- r = sd_event_default(&m->event);
- if (r < 0)
+ r = link_get(m, ifindex, &link);
+ if (r == -ENODEV)
+ return 0;
+ else if (r < 0)
return r;
- sd_event_set_watchdog(m->event, true);
-
- sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
- sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
-
- fd = systemd_netlink_fd();
- if (fd < 0)
- r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR, RTNLGRP_IPV6_IFADDR);
- else
- r = sd_rtnl_new_from_netlink(&m->rtnl, fd);
+ r = link_initialized(link, device);
if (r < 0)
return r;
- r = manager_connect_bus(m);
- if (r < 0)
- return r;
+ return 0;
+}
- /* udev does not initialize devices inside containers,
- * so we rely on them being already initialized before
- * entering the container */
- if (detect_container(NULL) <= 0) {
- m->udev = udev_new();
- if (!m->udev)
- return -ENOMEM;
-
- m->udev_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
- if (!m->udev_monitor)
- return -ENOMEM;
- }
+static int manager_dispatch_link_udev(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
+ Manager *m = userdata;
+ struct udev_monitor *monitor = m->udev_monitor;
+ _cleanup_udev_device_unref_ struct udev_device *device = NULL;
- m->netdevs = hashmap_new(&string_hash_ops);
- if (!m->netdevs)
+ device = udev_monitor_receive_device(monitor);
+ if (!device)
return -ENOMEM;
- LIST_HEAD_INIT(m->networks);
-
- r = setup_default_address_pool(m);
- if (r < 0)
- return r;
-
- *ret = m;
- m = NULL;
-
+ manager_udev_process_link(m, device);
return 0;
}
-void manager_free(Manager *m) {
- Network *network;
- NetDev *netdev;
- Link *link;
- AddressPool *pool;
-
- if (!m)
- return;
-
- free(m->state_file);
-
- 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)))
- link_unref(link);
- hashmap_free(m->links);
-
- while ((network = m->networks))
- network_free(network);
-
- while ((netdev = hashmap_first(m->netdevs)))
- netdev_unref(netdev);
- hashmap_free(m->netdevs);
-
- while ((pool = m->address_pools))
- address_pool_free(pool);
-
- sd_rtnl_unref(m->rtnl);
+static int manager_connect_udev(Manager *m) {
+ int r;
- free(m);
-}
+ /* udev does not initialize devices inside containers,
+ * so we rely on them being already initialized before
+ * entering the container */
+ if (detect_container(NULL) > 0)
+ return 0;
-int manager_load_config(Manager *m) {
- int r;
+ m->udev = udev_new();
+ if (!m->udev)
+ return -ENOMEM;
- /* update timestamp */
- paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true);
+ m->udev_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
+ if (!m->udev_monitor)
+ return -ENOMEM;
- r = netdev_load(m);
+ r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_monitor, "net", NULL);
if (r < 0)
- return r;
+ return log_error_errno(r, "Could not add udev monitor filter: %m");
- r = network_load(m);
- if (r < 0)
+ r = udev_monitor_enable_receiving(m->udev_monitor);
+ if (r < 0) {
+ log_error("Could not enable udev monitor");
return r;
-
- return 0;
-}
-
-bool manager_should_reload(Manager *m) {
- return paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, false);
-}
-
-static int manager_udev_process_link(Manager *m, struct udev_device *device) {
- Link *link = NULL;
- int r, ifindex;
-
- assert(m);
- assert(device);
-
- if (!streq_ptr(udev_device_get_action(device), "add"))
- return 0;
-
- ifindex = udev_device_get_ifindex(device);
- if (ifindex <= 0) {
- log_debug("ignoring udev ADD event for device with invalid ifindex");
- return 0;
}
- r = link_get(m, ifindex, &link);
- if (r == -ENODEV)
- return 0;
- else if (r < 0)
+ r = sd_event_add_io(m->event,
+ &m->udev_event_source,
+ udev_monitor_get_fd(m->udev_monitor),
+ EPOLLIN, manager_dispatch_link_udev,
+ m);
+ if (r < 0)
return r;
- r = link_initialized(link, device);
+ r = sd_event_source_set_description(m->udev_event_source, "networkd-udev");
if (r < 0)
return r;
@@ -420,155 +335,233 @@ static int manager_rtnl_process_link(sd_rtnl *rtnl, sd_rtnl_message *message, vo
return 1;
}
-int manager_rtnl_enumerate_links(Manager *m) {
- _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
- sd_rtnl_message *link;
- int r;
+static int systemd_netlink_fd(void) {
+ int n, fd, rtnl_fd = -EINVAL;
+
+ n = sd_listen_fds(true);
+ if (n <= 0)
+ return -EINVAL;
+
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
+ if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) {
+ if (rtnl_fd >= 0)
+ return -EINVAL;
+
+ rtnl_fd = fd;
+ }
+ }
+
+ return rtnl_fd;
+}
+
+static int manager_connect_rtnl(Manager *m) {
+ int fd, r;
assert(m);
- assert(m->rtnl);
- r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0);
+ fd = systemd_netlink_fd();
+ if (fd < 0)
+ r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR, RTNLGRP_IPV6_IFADDR);
+ else
+ r = sd_rtnl_open_fd(&m->rtnl, fd, 0);
if (r < 0)
return r;
- r = sd_rtnl_message_request_dump(req, true);
+ r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
if (r < 0)
return r;
- r = sd_rtnl_call(m->rtnl, req, 0, &reply);
+ r = sd_rtnl_attach_event(m->rtnl, m->event, 0);
if (r < 0)
return r;
- for (link = reply; link; link = sd_rtnl_message_next(link)) {
- int k;
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m);
+ if (r < 0)
+ return r;
- k = manager_rtnl_process_link(m->rtnl, link, m);
- if (k < 0)
- r = k;
- }
+ r = sd_rtnl_add_match(m->rtnl, RTM_DELLINK, &manager_rtnl_process_link, m);
+ if (r < 0)
+ return r;
- return r;
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m);
+ if (r < 0)
+ return r;
+
+ return 0;
}
-int manager_rtnl_enumerate_addresses(Manager *m) {
- _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
- sd_rtnl_message *addr;
+int manager_new(Manager **ret) {
+ _cleanup_manager_free_ Manager *m = NULL;
int r;
- assert(m);
- assert(m->rtnl);
+ m = new0(Manager, 1);
+ if (!m)
+ return -ENOMEM;
- r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0);
+ m->state_file = strdup("/run/systemd/netif/state");
+ if (!m->state_file)
+ return -ENOMEM;
+
+ r = sd_event_default(&m->event);
if (r < 0)
return r;
- r = sd_rtnl_message_request_dump(req, true);
+ sd_event_set_watchdog(m->event, true);
+
+ sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
+ sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
+
+ r = manager_connect_rtnl(m);
if (r < 0)
return r;
- r = sd_rtnl_call(m->rtnl, req, 0, &reply);
+ r = manager_connect_bus(m);
if (r < 0)
return r;
- for (addr = reply; addr; addr = sd_rtnl_message_next(addr)) {
- int k;
+ r = manager_connect_udev(m);
+ if (r < 0)
+ return r;
- k = link_rtnl_process_address(m->rtnl, addr, m);
- if (k < 0)
- r = k;
- }
+ m->netdevs = hashmap_new(&string_hash_ops);
+ if (!m->netdevs)
+ return -ENOMEM;
- return r;
-}
+ LIST_HEAD_INIT(m->networks);
-static int manager_dispatch_link_udev(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
- Manager *m = userdata;
- struct udev_monitor *monitor = m->udev_monitor;
- _cleanup_udev_device_unref_ struct udev_device *device = NULL;
+ r = setup_default_address_pool(m);
+ if (r < 0)
+ return r;
- device = udev_monitor_receive_device(monitor);
- if (!device)
- return -ENOMEM;
+ *ret = m;
+ m = NULL;
- manager_udev_process_link(m, device);
return 0;
}
-int manager_udev_listen(Manager *m) {
- int r;
+void manager_free(Manager *m) {
+ Network *network;
+ NetDev *netdev;
+ Link *link;
+ AddressPool *pool;
- if (detect_container(NULL) > 0)
- return 0;
+ if (!m)
+ return;
- assert(m->udev_monitor);
+ free(m->state_file);
- r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_monitor, "net", NULL);
- if (r < 0)
- return log_error_errno(r, "Could not add udev monitor filter: %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);
- r = udev_monitor_enable_receiving(m->udev_monitor);
- if (r < 0) {
- log_error("Could not enable udev monitor");
- return r;
- }
+ while ((link = hashmap_first(m->links)))
+ link_unref(link);
+ hashmap_free(m->links);
- r = sd_event_add_io(m->event,
- &m->udev_event_source,
- udev_monitor_get_fd(m->udev_monitor),
- EPOLLIN, manager_dispatch_link_udev,
- m);
+ while ((network = m->networks))
+ network_free(network);
+
+ while ((netdev = hashmap_first(m->netdevs)))
+ netdev_unref(netdev);
+ hashmap_free(m->netdevs);
+
+ while ((pool = m->address_pools))
+ address_pool_free(pool);
+
+ sd_rtnl_unref(m->rtnl);
+
+ free(m);
+}
+
+int manager_load_config(Manager *m) {
+ int r;
+
+ /* update timestamp */
+ paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true);
+
+ r = netdev_load(m);
if (r < 0)
return r;
- r = sd_event_source_set_description(m->udev_event_source, "networkd-udev");
+ r = network_load(m);
if (r < 0)
return r;
return 0;
}
-int manager_rtnl_listen(Manager *m) {
+bool manager_should_reload(Manager *m) {
+ return paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, false);
+}
+
+int manager_rtnl_enumerate_links(Manager *m) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
+ sd_rtnl_message *link;
int r;
assert(m);
+ assert(m->rtnl);
- r = sd_rtnl_attach_event(m->rtnl, m->event, 0);
+ r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m);
+ r = sd_rtnl_message_request_dump(req, true);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_DELLINK, &manager_rtnl_process_link, m);
+ r = sd_rtnl_call(m->rtnl, req, 0, &reply);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m);
- if (r < 0)
- return r;
+ for (link = reply; link; link = sd_rtnl_message_next(link)) {
+ int k;
- r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m);
- if (r < 0)
- return r;
+ k = manager_rtnl_process_link(m->rtnl, link, m);
+ if (k < 0)
+ r = k;
+ }
- return 0;
+ return r;
}
-int manager_bus_listen(Manager *m) {
+int manager_rtnl_enumerate_addresses(Manager *m) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
+ sd_rtnl_message *addr;
int r;
- assert(m->event);
+ assert(m);
+ assert(m->rtnl);
- if (!m->bus) /* TODO: drop when we can rely on kdbus */
- return 0;
+ r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0);
+ if (r < 0)
+ return r;
- r = sd_bus_attach_event(m->bus, m->event, 0);
+ r = sd_rtnl_message_request_dump(req, true);
if (r < 0)
return r;
- return 0;
+ r = sd_rtnl_call(m->rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ for (addr = reply; addr; addr = sd_rtnl_message_next(addr)) {
+ int k;
+
+ k = link_rtnl_process_address(m->rtnl, addr, m);
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
}
static int set_put_in_addr(Set *s, const struct in_addr *address) {
diff --git a/src/network/networkd.c b/src/network/networkd.c
index ced319de1d..0b4af90677 100644
--- a/src/network/networkd.c
+++ b/src/network/networkd.c
@@ -86,24 +86,6 @@ int main(int argc, char *argv[]) {
goto out;
}
- r = manager_udev_listen(m);
- if (r < 0) {
- log_error_errno(r, "Could not connect to udev: %m");
- goto out;
- }
-
- r = manager_rtnl_listen(m);
- if (r < 0) {
- log_error_errno(r, "Could not connect to rtnl: %m");
- goto out;
- }
-
- r = manager_bus_listen(m);
- if (r < 0) {
- log_error_errno(r, "Could not connect to system bus: %m");
- goto out;
- }
-
r = manager_load_config(m);
if (r < 0) {
log_error_errno(r, "Could not load configuration files: %m");
diff --git a/src/network/networkd.h b/src/network/networkd.h
index a4ac8e3503..075aefec71 100644
--- a/src/network/networkd.h
+++ b/src/network/networkd.h
@@ -229,10 +229,6 @@ bool manager_should_reload(Manager *m);
int manager_rtnl_enumerate_links(Manager *m);
int manager_rtnl_enumerate_addresses(Manager *m);
-int manager_rtnl_listen(Manager *m);
-int manager_udev_listen(Manager *m);
-int manager_bus_listen(Manager *m);
-
int manager_save(Manager *m);
int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
diff --git a/src/network/test-network.c b/src/network/test-network.c
index b4a7be00f5..5909cc790e 100644
--- a/src/network/test-network.c
+++ b/src/network/test-network.c
@@ -209,8 +209,6 @@ int main(void) {
test_network_get(manager, loopback);
- assert_se(manager_udev_listen(manager) >= 0);
- assert_se(manager_rtnl_listen(manager) >= 0);
assert_se(manager_rtnl_enumerate_links(manager) >= 0);
udev_device_unref(loopback);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 07:33:39 +0000