This file is part of systemd.
Copyright 2013 Tom Gundersen <teg@jklm.no>
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/socket.h>
return 0;
}
-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 b, r;
assert(message);
+ assert(m);
r = sd_bus_message_read(message, "b", &b);
if (r < 0) {
return 0;
}
-int manager_connect_bus(Manager *m) {
- int r;
+static int on_connected(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) {
+ Manager *m = userdata;
+ assert(message);
assert(m);
- r = sd_bus_default_system(&m->bus);
- if (r < 0) {
- /* We failed to connect? Yuck, we must be in early
- * boot. Let's try in 5s again. */
+ /* Did we get a timezone or transient hostname from DHCP while D-Bus wasn't up yet? */
+ if (m->dynamic_hostname)
+ (void) manager_set_hostname(m, m->dynamic_hostname);
+ if (m->dynamic_timezone)
+ (void) manager_set_timezone(m, m->dynamic_timezone);
- log_debug_errno(r, "Failed to connect to bus, trying again in 5s: %m");
+ return 0;
+}
- 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");
+int manager_connect_bus(Manager *m) {
+ int r;
+
+ assert(m);
+ if (m->bus)
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);
+ r = bus_open_system_watch_bind_with_description(&m->bus, "bus-api-network");
if (r < 0)
- return log_error_errno(r, "Failed to add match for PrepareForSleep: %m");
+ return log_error_errno(r, "Failed to connect to bus: %m");
r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/network1", "org.freedesktop.network1.Manager", manager_vtable, m);
if (r < 0)
if (r < 0)
return log_error_errno(r, "Failed to add network enumerator: %m");
- r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.network1", 0, NULL, NULL);
+ r = bus_request_name_async_may_reload_dbus(m->bus, NULL, "org.freedesktop.network1", 0, NULL);
if (r < 0)
return log_error_errno(r, "Failed to request name: %m");
if (r < 0)
return log_error_errno(r, "Failed to attach bus to event loop: %m");
- /* Did we get a timezone or transient hostname from DHCP while D-Bus wasn't up yet? */
- if (m->dynamic_hostname) {
- r = manager_set_hostname(m, m->dynamic_hostname);
- if (r < 0)
- return r;
- }
- if (m->dynamic_timezone) {
- r = manager_set_timezone(m, m->dynamic_timezone);
- if (r < 0)
- return r;
- }
+ r = sd_bus_match_signal_async(
+ m->bus,
+ &m->connected_slot,
+ "org.freedesktop.DBus.Local",
+ NULL,
+ "org.freedesktop.DBus.Local",
+ "Connected",
+ on_connected, NULL, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to request match on Connected signal: %m");
+
+ r = sd_bus_match_signal_async(
+ m->bus,
+ &m->prepare_for_sleep_slot,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "PrepareForSleep",
+ match_prepare_for_sleep, NULL, m);
+ if (r < 0)
+ log_warning_errno(r, "Failed to request match for PrepareForSleep, ignoring: %m");
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;
+ _cleanup_(udev_device_unrefp) struct udev_device *device = NULL;
device = udev_monitor_receive_device(monitor);
if (!device)
return rtnl_fd;
}
+static int manager_connect_genl(Manager *m) {
+ int r;
+
+ assert(m);
+
+ r = sd_genl_socket_open(&m->genl);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_inc_rcvbuf(m->genl, RCVBUF_SIZE);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_attach_event(m->genl, m->event, 0);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
static int manager_connect_rtnl(Manager *m) {
int fd, r;
return 1;
}
+Link *manager_dhcp6_prefix_get(Manager *m, struct in6_addr *addr) {
+ assert_return(m, NULL);
+ assert_return(m->dhcp6_prefixes, NULL);
+ assert_return(addr, NULL);
+
+ return hashmap_get(m->dhcp6_prefixes, addr);
+}
+
+static int dhcp6_route_add_callback(sd_netlink *nl, sd_netlink_message *m,
+ void *userdata) {
+ Link *l = userdata;
+ int r;
+ union in_addr_union prefix;
+ _cleanup_free_ char *buf = NULL;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r != 0) {
+ log_link_debug_errno(l, r, "Received error adding DHCPv6 Prefix Delegation route: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_in6_addr(m, RTA_DST, &prefix.in6);
+ if (r < 0) {
+ log_link_debug_errno(l, r, "Could not read IPv6 address from DHCPv6 Prefix Delegation while adding route: %m");
+ return 0;
+ }
+
+ (void) in_addr_to_string(AF_INET6, &prefix, &buf);
+ log_link_debug(l, "Added DHCPv6 Prefix Deleagtion route %s/64",
+ strnull(buf));
+
+ return 0;
+}
+
+int manager_dhcp6_prefix_add(Manager *m, struct in6_addr *addr, Link *link) {
+ int r;
+ Route *route;
+
+ assert_return(m, -EINVAL);
+ assert_return(m->dhcp6_prefixes, -ENODATA);
+ assert_return(addr, -EINVAL);
+
+ r = route_add(link, AF_INET6, (union in_addr_union *) addr, 64,
+ 0, 0, 0, &route);
+ if (r < 0)
+ return r;
+
+ r = route_configure(route, link, dhcp6_route_add_callback);
+ if (r < 0)
+ return r;
+
+ return hashmap_put(m->dhcp6_prefixes, addr, link);
+}
+
+static int dhcp6_route_remove_callback(sd_netlink *nl, sd_netlink_message *m,
+ void *userdata) {
+ Link *l = userdata;
+ int r;
+ union in_addr_union prefix;
+ _cleanup_free_ char *buf = NULL;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r != 0) {
+ log_link_debug_errno(l, r, "Received error on DHCPv6 Prefix Delegation route removal: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_in6_addr(m, RTA_DST, &prefix.in6);
+ if (r < 0) {
+ log_link_debug_errno(l, r, "Could not read IPv6 address from DHCPv6 Prefix Delegation while removing route: %m");
+ return 0;
+ }
+
+ (void) in_addr_to_string(AF_INET6, &prefix, &buf);
+ log_link_debug(l, "Removed DHCPv6 Prefix Delegation route %s/64",
+ strnull(buf));
+
+ return 0;
+}
+
+int manager_dhcp6_prefix_remove(Manager *m, struct in6_addr *addr) {
+ Link *l;
+ int r;
+ Route *route;
+
+ assert_return(m, -EINVAL);
+ assert_return(m->dhcp6_prefixes, -ENODATA);
+ assert_return(addr, -EINVAL);
+
+ l = hashmap_remove(m->dhcp6_prefixes, addr);
+ if (!l)
+ return -EINVAL;
+
+ (void) sd_radv_remove_prefix(l->radv, addr, 64);
+ r = route_get(l, AF_INET6, (union in_addr_union *) addr, 64,
+ 0, 0, 0, &route);
+ if (r >= 0)
+ (void) route_remove(route, l, dhcp6_route_remove_callback);
+
+ return 0;
+}
+
+int manager_dhcp6_prefix_remove_all(Manager *m, Link *link) {
+ Iterator i;
+ Link *l;
+ struct in6_addr *addr;
+
+ assert_return(m, -EINVAL);
+ assert_return(link, -EINVAL);
+
+ HASHMAP_FOREACH_KEY(l, addr, m->dhcp6_prefixes, i) {
+ if (l != link)
+ continue;
+
+ (void) manager_dhcp6_prefix_remove(m, addr);
+ }
+
+ return 0;
+}
+
+static void dhcp6_prefixes_hash_func(const void *p, struct siphash *state) {
+ const struct in6_addr *addr = p;
+
+ assert(p);
+
+ siphash24_compress(addr, sizeof(*addr), state);
+}
+
+static int dhcp6_prefixes_compare_func(const void *_a, const void *_b) {
+ const struct in6_addr *a = _a, *b = _b;
+
+ return memcmp(a, b, sizeof(*a));
+}
+
+static const struct hash_ops dhcp6_prefixes_hash_ops = {
+ .hash = dhcp6_prefixes_hash_func,
+ .compare = dhcp6_prefixes_compare_func,
+};
+
int manager_new(Manager **ret, sd_event *event) {
- _cleanup_manager_free_ Manager *m = NULL;
+ _cleanup_(manager_freep) Manager *m = NULL;
int r;
m = new0(Manager, 1);
if (r < 0)
return r;
+ r = manager_connect_genl(m);
+ if (r < 0)
+ return r;
+
r = manager_connect_udev(m);
if (r < 0)
return r;
LIST_HEAD_INIT(m->networks);
+ r = sd_resolve_default(&m->resolve);
+ if (r < 0)
+ return r;
+
+ r = sd_resolve_attach_event(m->resolve, m->event, 0);
+ if (r < 0)
+ return r;
+
r = setup_default_address_pool(m);
if (r < 0)
return r;
+ m->dhcp6_prefixes = hashmap_new(&dhcp6_prefixes_hash_ops);
+ if (!m->dhcp6_prefixes)
+ return -ENOMEM;
+
m->duid.type = DUID_TYPE_EN;
(void) routing_policy_load_rules(m->state_file, &m->rules_saved);
- *ret = m;
- m = NULL;
+ *ret = TAKE_PTR(m);
return 0;
}
while ((network = m->networks))
network_free(network);
+ while ((link = hashmap_first(m->dhcp6_prefixes)))
+ link_unref(link);
+ hashmap_free(m->dhcp6_prefixes);
+
while ((link = hashmap_first(m->links)))
link_unref(link);
hashmap_free(m->links);
sd_netlink_unref(m->rtnl);
sd_event_unref(m->event);
+ sd_resolve_unref(m->resolve);
+
sd_event_source_unref(m->udev_event_source);
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->bus_retry_event_source);
+ sd_bus_slot_unref(m->connected_slot);
free(m->dynamic_timezone);
free(m->dynamic_hostname);
int r;
log_debug("Setting transient hostname: '%s'", strna(hostname));
+
if (free_and_strdup(&m->dynamic_hostname, hostname) < 0)
return log_oom();
- if (!m->bus) {
- /* TODO: replace by assert when we can rely on kdbus */
- log_info("Not connected to system bus, ignoring transient hostname.");
+ if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
+ log_info("Not connected to system bus, not setting hostname.");
return 0;
}
if (free_and_strdup(&m->dynamic_timezone, tz) < 0)
return log_oom();
- if (!m->bus) {
- log_info("Not connected to system bus, ignoring timezone.");
+ if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
+ log_info("Not connected to system bus, not setting timezone.");
return 0;
}
projects / thirdparty / systemd.git / blobdiff