#include "path-util.h"
#include "networkd.h"
#include "libudev-private.h"
+#include "udev-util.h"
int manager_new(Manager **ret) {
_cleanup_manager_free_ Manager *m = NULL;
if (r < 0)
return r;
- r = sd_rtnl_open(0, &m->rtnl);
+ sd_event_set_watchdog(m->event, true);
+
+ r = sd_rtnl_open(RTMGRP_LINK | RTMGRP_IPV4_IFADDR, &m->rtnl);
if (r < 0)
return r;
if (!m->links)
return -ENOMEM;
+ m->bridges = hashmap_new(string_hash_func, string_compare_func);
+ if (!m->bridges)
+ return -ENOMEM;
+
LIST_HEAD_INIT(m->networks);
m->network_dirs = strv_new("/etc/systemd/network/",
}
void manager_free(Manager *m) {
+ Network *network;
+ Bridge *bridge;
+ Link *link;
+
udev_monitor_unref(m->udev_monitor);
udev_unref(m->udev);
sd_event_source_unref(m->udev_event_source);
sd_event_unref(m->event);
+
+ while ((network = m->networks))
+ network_free(network);
+
+ while ((link = hashmap_first(m->links)))
+ link_free(link);
hashmap_free(m->links);
+
+ while ((bridge = hashmap_first(m->bridges)))
+ bridge_free(bridge);
+ hashmap_free(m->bridges);
+
strv_free(m->network_dirs);
sd_rtnl_unref(m->rtnl);
free(m);
}
+int manager_load_config(Manager *m) {
+ int r;
+
+ /* update timestamp */
+ paths_check_timestamp(m->network_dirs, &m->network_dirs_ts_usec, true);
+
+ r = bridge_load(m);
+ if (r < 0)
+ return r;
+
+ r = network_load(m);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+bool manager_should_reload(Manager *m) {
+ return paths_check_timestamp(m->network_dirs, &m->network_dirs_ts_usec, false);
+}
+
static int manager_process_link(Manager *m, struct udev_device *device) {
Link *link;
int r;
if (streq_ptr(udev_device_get_action(device), "remove")) {
uint64_t ifindex;
+ log_debug("Link removed: %s", udev_device_get_sysname(device));
+
ifindex = udev_device_get_ifindex(device);
link = hashmap_get(m->links, &ifindex);
if (!link)
link_free(link);
} else {
+ log_debug("New link: %s", udev_device_get_sysname(device));
+
r = link_add(m, device);
if (r < 0) {
log_error("Could not handle link %s: %s",
}
int manager_udev_enumerate_links(Manager *m) {
+ _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
struct udev_list_entry *item = NULL, *first = NULL;
- struct udev_enumerate *e;
int r;
assert(m);
e = udev_enumerate_new(m->udev);
- if (!e) {
- r = -ENOMEM;
- goto finish;
- }
+ if (!e)
+ return -ENOMEM;
r = udev_enumerate_add_match_subsystem(e, "net");
if (r < 0)
- goto finish;
+ return r;
- r = udev_enumerate_add_match_tag(e, "systemd-networkd");
+ r = udev_enumerate_add_match_is_initialized(e);
if (r < 0)
- goto finish;
+ return r;
r = udev_enumerate_scan_devices(e);
if (r < 0)
- goto finish;
+ return r;
first = udev_enumerate_get_list_entry(e);
udev_list_entry_foreach(item, first) {
- struct udev_device *d;
+ _cleanup_udev_device_unref_ struct udev_device *d = NULL;
int k;
d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
- if (!d) {
- r = -ENOMEM;
- goto finish;
- }
+ if (!d)
+ return -ENOMEM;
k = manager_process_link(m, d);
- udev_device_unref(d);
-
if (k < 0)
r = k;
}
-finish:
- if (e)
- udev_enumerate_unref(e);
-
return r;
}
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;
- struct udev_device *device;
- int r;
+ _cleanup_udev_device_unref_ struct udev_device *device = NULL;
device = udev_monitor_receive_device(monitor);
if (!device)
return -ENOMEM;
- r = manager_process_link(m, device);
- if (r < 0)
- return r;
-
- udev_device_unref(device);
-
+ manager_process_link(m, device);
return 0;
}
return r;
}
- r = udev_monitor_filter_add_match_tag(m->udev_monitor, "systemd-networkd");
- if (r < 0) {
- log_error("Could not add udev monitor filter: %s", strerror(-r));
- return r;
- }
-
r = udev_monitor_enable_receiving(m->udev_monitor);
if (r < 0) {
log_error("Could not enable udev monitor");
return 0;
}
+
+static int manager_rtnl_process_link(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
+ Manager *m = userdata;
+ Link *link;
+ int r, ifindex;
+
+ r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
+ if (r < 0)
+ return 0;
+
+ link = hashmap_get(m->links, &ifindex);
+ if (!link)
+ return 0;
+
+ r = link_update(link, message);
+ if (r < 0)
+ return 0;
+
+ return 1;
+}
+
+int manager_rtnl_listen(Manager *m) {
+ int r;
+
+ r = sd_rtnl_attach_event(m->rtnl, m->event, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m);
+ if (r < 0)
+ return r;
+
+ return 0;
+}