#include "virt.h"
#include "sd-rtnl.h"
+#include "sd-daemon.h"
/* use 8 MB for receive socket kernel queue. */
#define RCVBUF_SIZE (8*1024*1024)
return 0;
}
-int manager_new(Manager **ret) {
- _cleanup_manager_free_ Manager *m = NULL;
- int r;
-
- m = new0(Manager, 1);
- if (!m)
- return -ENOMEM;
+int manager_connect_bus(Manager *m);
- m->state_file = strdup("/run/systemd/netif/state");
- if (!m->state_file)
- return -ENOMEM;
+static int on_bus_retry(sd_event_source *s, usec_t usec, void *userdata) {
+ Manager *m = userdata;
- r = sd_event_default(&m->event);
- if (r < 0)
- return r;
+ assert(s);
+ assert(m);
- sd_event_set_watchdog(m->event, true);
+ m->bus_retry_event_source = sd_event_source_unref(m->bus_retry_event_source);
- sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
- sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
+ manager_connect_bus(m);
- r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR,
- RTNLGRP_IPV6_IFADDR);
- if (r < 0)
- return r;
+ return 0;
+}
- r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
- if (r < 0)
- return r;
+static int manager_reset_all(Manager *m) {
+ Link *link;
+ Iterator i;
+ int r;
- r = sd_bus_default_system(&m->bus);
- if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */
- return r;
+ assert(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) {
- 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;
+ 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");
}
- m->netdevs = hashmap_new(&string_hash_ops);
- if (!m->netdevs)
- return -ENOMEM;
-
- LIST_HEAD_INIT(m->networks);
-
- r = setup_default_address_pool(m);
- if (r < 0)
- return r;
-
- *ret = m;
- m = NULL;
-
return 0;
}
-void manager_free(Manager *m) {
- Network *network;
- NetDev *netdev;
- Link *link;
- AddressPool *pool;
+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;
- if (!m)
- return;
+ assert(bus);
+ assert(bus);
- free(m->state_file);
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to parse PrepareForSleep signal: %m");
+ return 0;
+ }
- udev_monitor_unref(m->udev_monitor);
- udev_unref(m->udev);
- sd_bus_unref(m->bus);
- sd_event_source_unref(m->udev_event_source);
- sd_event_unref(m->event);
+ if (b)
+ return 0;
- while ((link = hashmap_first(m->links)))
- link_unref(link);
- hashmap_free(m->links);
+ log_debug("Coming back from suspend, resetting all connections...");
- while ((network = m->networks))
- network_free(network);
+ manager_reset_all(m);
- while ((netdev = hashmap_first(m->netdevs)))
- netdev_unref(netdev);
- hashmap_free(m->netdevs);
+ return 0;
+}
- while ((pool = m->address_pools))
- address_pool_free(pool);
+int manager_connect_bus(Manager *m) {
+ int r;
- sd_rtnl_unref(m->rtnl);
+ assert(m);
- free(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... */
-int manager_load_config(Manager *m) {
- int r;
+ log_debug_errno(r, "Failed to connect to bus, trying again in 5s: %m");
- /* update timestamp */
- paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true);
+ 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");
- r = netdev_load(m);
- if (r < 0)
+ return 0;
+ } if (r < 0)
return r;
- r = network_load(m);
+ r = sd_bus_attach_event(m->bus, m->event, 0);
if (r < 0)
return r;
- return 0;
-}
+ 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");
-bool manager_should_reload(Manager *m) {
- return paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, false);
+ return 0;
}
static int manager_udev_process_link(Manager *m, struct udev_device *device) {
return 0;
}
+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;
+
+ device = udev_monitor_receive_device(monitor);
+ if (!device)
+ return -ENOMEM;
+
+ manager_udev_process_link(m, device);
+ return 0;
+}
+
+static int manager_connect_udev(Manager *m) {
+ int r;
+
+ /* 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;
+
+ 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;
+
+ 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");
+
+ r = udev_monitor_enable_receiving(m->udev_monitor);
+ if (r < 0) {
+ log_error("Could not enable udev monitor");
+ return r;
+ }
+
+ 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 = sd_event_source_set_description(m->udev_event_source, "networkd-udev");
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
static int manager_rtnl_process_link(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
Manager *m = userdata;
Link *link = NULL;
assert(message);
assert(m);
+ if (sd_rtnl_message_is_error(message)) {
+ r = sd_rtnl_message_get_errno(message);
+ if (r < 0)
+ log_warning_errno(r, "rtnl: could not receive link: %m");
+
+ return 0;
+ }
+
r = sd_rtnl_message_get_type(message, &type);
if (r < 0) {
- log_warning("rtnl: could not get message type");
+ log_warning_errno(r, "rtnl: could not get message type: %m");
return 0;
}
r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
- if (r < 0 || ifindex <= 0) {
- log_warning("rtnl: received link message without valid ifindex");
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get ifindex: %m");
+ return 0;
+ } else if (ifindex <= 0) {
+ log_warning("rtnl: received link message with invalid ifindex: %d", ifindex);
return 0;
} else
link_get(m, ifindex, &link);
r = sd_rtnl_message_read_string(message, IFLA_IFNAME, &name);
- if (r < 0 || !name) {
- log_warning("rtnl: received link message without valid ifname");
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: received link message without ifname: %m");
return 0;
} else
netdev_get(m, name, &netdev);
/* link is new, so add it */
r = link_add(m, message, &link);
if (r < 0) {
- log_debug_errno(r, "could not add new link: %m");
+ log_warning_errno(r, "could not add new link: %m");
return 0;
}
}
/* netdev exists, so make sure the ifindex matches */
r = netdev_set_ifindex(netdev, message);
if (r < 0) {
- log_debug("could not set ifindex on netdev");
+ log_warning_errno(r, "could not set ifindex on netdev: %m");
return 0;
}
}
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, k;
+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)) {
- uint16_t type;
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m);
+ if (r < 0)
+ return r;
- k = sd_rtnl_message_get_type(link, &type);
- if (k < 0)
- return k;
+ r = sd_rtnl_add_match(m->rtnl, RTM_DELLINK, &manager_rtnl_process_link, m);
+ if (r < 0)
+ return r;
- if (type != RTM_NEWLINK)
- continue;
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, 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_DELADDR, &link_rtnl_process_address, m);
+ if (r < 0)
+ return r;
- return r;
+ return 0;
}
-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;
+int manager_new(Manager **ret) {
+ _cleanup_manager_free_ Manager *m = NULL;
+ int r;
- device = udev_monitor_receive_device(monitor);
- if (!device)
+ m = new0(Manager, 1);
+ if (!m)
return -ENOMEM;
- manager_udev_process_link(m, device);
- return 0;
-}
+ m->state_file = strdup("/run/systemd/netif/state");
+ if (!m->state_file)
+ return -ENOMEM;
-int manager_udev_listen(Manager *m) {
- int r;
+ r = sd_event_default(&m->event);
+ if (r < 0)
+ return r;
- if (detect_container(NULL) > 0)
- return 0;
+ sd_event_set_watchdog(m->event, true);
- assert(m->udev_monitor);
+ sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
+ sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
- r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_monitor, "net", NULL);
+ r = manager_connect_rtnl(m);
if (r < 0)
- return log_error_errno(r, "Could not add udev monitor filter: %m");
+ return r;
- r = udev_monitor_enable_receiving(m->udev_monitor);
- if (r < 0) {
- log_error("Could not enable udev monitor");
+ r = manager_connect_bus(m);
+ if (r < 0)
return r;
- }
- r = sd_event_add_io(m->event,
- &m->udev_event_source,
- udev_monitor_get_fd(m->udev_monitor),
- EPOLLIN, manager_dispatch_link_udev,
- m);
+ r = manager_connect_udev(m);
if (r < 0)
return r;
- r = sd_event_source_set_description(m->udev_event_source, "networkd-udev");
+ m->netdevs = hashmap_new(&string_hash_ops);
+ if (!m->netdevs)
+ return -ENOMEM;
+
+ LIST_HEAD_INIT(m->networks);
+
+ r = setup_default_address_pool(m);
if (r < 0)
return r;
+ *ret = m;
+ m = NULL;
+
return 0;
}
-int manager_rtnl_listen(Manager *m) {
+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);
+
+ free(m);
+}
+
+int manager_load_config(Manager *m) {
int r;
- assert(m);
+ /* update timestamp */
+ paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true);
- r = sd_rtnl_attach_event(m->rtnl, m->event, 0);
+ r = netdev_load(m);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m);
+ r = network_load(m);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_DELLINK, &manager_rtnl_process_link, m);
+ return 0;
+}
+
+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_message_new_link(m->rtnl, &req, RTM_GETLINK, 0);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m);
+ r = sd_rtnl_message_request_dump(req, true);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m);
+ r = sd_rtnl_call(m->rtnl, req, 0, &reply);
if (r < 0)
return r;
- return 0;
+ for (link = reply; link; link = sd_rtnl_message_next(link)) {
+ int k;
+
+ k = manager_rtnl_process_link(m->rtnl, link, m);
+ if (k < 0)
+ r = k;
+ }
+
+ 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) {
return 0;
}
+
+const char *address_family_boolean_to_string(AddressFamilyBoolean b) {
+ if (b == ADDRESS_FAMILY_YES ||
+ b == ADDRESS_FAMILY_NO)
+ return yes_no(b == ADDRESS_FAMILY_YES);
+
+ if (b == ADDRESS_FAMILY_IPV4)
+ return "ipv4";
+ if (b == ADDRESS_FAMILY_IPV6)
+ return "ipv6";
+
+ return NULL;
+}
+
+AddressFamilyBoolean address_family_boolean_from_string(const char *s) {
+ int r;
+
+ /* Make this a true superset of a boolean */
+
+ r = parse_boolean(s);
+ if (r > 0)
+ return ADDRESS_FAMILY_YES;
+ if (r == 0)
+ return ADDRESS_FAMILY_NO;
+
+ if (streq(s, "ipv4"))
+ return ADDRESS_FAMILY_IPV4;
+ if (streq(s, "ipv6"))
+ return ADDRESS_FAMILY_IPV6;
+
+ return _ADDRESS_FAMILY_BOOLEAN_INVALID;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_address_family_boolean, address_family_boolean, AddressFamilyBoolean, "Failed to parse option");
~ianmdlvl / elogind.git / blobdiff