+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
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>
#include <linux/if.h>
+#include <linux/fib_rules.h>
+#include <stdio_ext.h>
#include "sd-daemon.h"
#include "sd-netlink.h"
#include "libudev-private.h"
#include "local-addresses.h"
#include "netlink-util.h"
-#include "networkd.h"
+#include "networkd-manager.h"
#include "ordered-set.h"
#include "path-util.h"
#include "set.h"
"/etc/systemd/network",
"/run/systemd/network",
"/usr/lib/systemd/network",
-#ifdef HAVE_SPLIT_USR
+#if HAVE_SPLIT_USR
"/lib/systemd/network",
#endif
NULL};
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) {
log_debug("Coming back from suspend, resetting all connections...");
- manager_reset_all(m);
+ (void) manager_reset_all(m);
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 == -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... */
+ /* 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;
- return 0;
- }
+ assert(m);
- if (r < 0)
- return r;
+ 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 link enumerator: %m");
- r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.Link.Lease", lease_vtable, lease_object_find, m);
- if (r < 0)
- return log_error_errno(r, "Failed to add lease object vtable: %m");
-
- r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/link", lease_node_enumerator, m);
- if (r < 0)
- return log_error_errno(r, "Failed to add lease enumerator: %m");
-
r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/network", "org.freedesktop.network1.Network", network_vtable, network_object_find, m);
if (r < 0)
return log_error_errno(r, "Failed to add network object vtable: %m");
if (r < 0)
return log_error_errno(r, "Failed to add network enumerator: %m");
- r = sd_bus_request_name(m->bus, "org.freedesktop.network1", 0);
+ 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 register name: %m");
+ return log_error_errno(r, "Failed to request name: %m");
r = sd_bus_attach_event(m->bus, m->event, 0);
if (r < 0)
return log_error_errno(r, "Failed to attach bus to event loop: %m");
+ 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 -ENOMEM;
- manager_udev_process_link(m, device);
+ (void) manager_udev_process_link(m, device);
+
return 0;
}
Link *link = NULL;
uint16_t type;
uint32_t ifindex, priority = 0;
- unsigned char protocol, scope, tos, table;
+ unsigned char protocol, scope, tos, table, rt_type;
int family;
unsigned char dst_prefixlen, src_prefixlen;
union in_addr_union dst = {}, gw = {}, src = {}, prefsrc = {};
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive route: %m");
+ log_warning_errno(r, "rtnl: failed to receive route, ignoring: %m");
return 0;
}
r = sd_netlink_message_get_type(message, &type);
if (r < 0) {
- log_warning_errno(r, "rtnl: could not get message type: %m");
+ log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
return 0;
- } else if (type != RTM_NEWROUTE && type != RTM_DELROUTE) {
- log_warning("rtnl: received unexpected message type when processing route");
+ } else if (!IN_SET(type, RTM_NEWROUTE, RTM_DELROUTE)) {
+ log_warning("rtnl: received unexpected message type when processing route, ignoring");
return 0;
}
r = sd_rtnl_message_route_get_family(message, &family);
if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
- log_link_warning(link, "rtnl: received address with invalid family, ignoring.");
+ log_link_warning(link, "rtnl: received address with invalid family, ignoring");
return 0;
}
break;
default:
- log_link_debug(link, "rtnl: ignoring unsupported address family: %d", family);
+ assert_not_reached("Received unsupported address family");
return 0;
}
return 0;
}
+ r = sd_rtnl_message_route_get_type(message, &rt_type);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "rtnl: received route with invalid type, ignoring: %m");
+ return 0;
+ }
+
r = sd_rtnl_message_route_get_table(message, &table);
if (r < 0) {
log_link_warning_errno(link, r, "rtnl: received route with invalid table, ignoring: %m");
return 0;
}
- route_get(link, family, &dst, dst_prefixlen, tos, priority, table, &route);
+ (void) route_get(link, family, &dst, dst_prefixlen, tos, priority, table, &route);
switch (type) {
case RTM_NEWROUTE:
if (!route) {
/* A route appeared that we did not request */
r = route_add_foreign(link, family, &dst, dst_prefixlen, tos, priority, table, &route);
- if (r < 0)
+ if (r < 0) {
+ log_link_warning_errno(link, r, "Failed to add route, ignoring: %m");
return 0;
+ }
}
- route_update(route, &src, src_prefixlen, &gw, &prefsrc, scope, protocol);
+ route_update(route, &src, src_prefixlen, &gw, &prefsrc, scope, protocol, rt_type);
break;
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive address: %m");
+ log_warning_errno(r, "rtnl: failed to receive address, ignoring: %m");
return 0;
}
r = sd_netlink_message_get_type(message, &type);
if (r < 0) {
- log_warning_errno(r, "rtnl: could not get message type: %m");
+ log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
return 0;
- } else if (type != RTM_NEWADDR && type != RTM_DELADDR) {
- log_warning("rtnl: received unexpected message type when processing address");
+ } else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) {
+ log_warning("rtnl: received unexpected message type when processing address, ignoring");
return 0;
}
r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
if (r < 0) {
- log_warning_errno(r, "rtnl: could not get ifindex from address: %m");
+ log_warning_errno(r, "rtnl: could not get ifindex from address, ignoring: %m");
return 0;
} else if (ifindex <= 0) {
- log_warning("rtnl: received address message with invalid ifindex: %d", ifindex);
+ log_warning("rtnl: received address message with invalid ifindex, ignoring: %d", ifindex);
return 0;
} else {
r = link_get(m, ifindex, &link);
r = sd_rtnl_message_addr_get_family(message, &family);
if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
- log_link_warning(link, "rtnl: received address with invalid family, ignoring.");
+ log_link_warning(link, "rtnl: received address with invalid family, ignoring");
return 0;
}
break;
default:
- log_link_debug(link, "rtnl: ignoring unsupported address family: %d", family);
+ assert_not_reached("Received unsupported address family");
}
if (!inet_ntop(family, &in_addr, buf, INET6_ADDRSTRLEN)) {
- log_link_warning(link, "Could not print address");
+ log_link_warning(link, "Could not print address, ignoring");
return 0;
}
r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo);
- if (r >= 0) {
+ if (r < 0 && r != -ENODATA) {
+ log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m");
+ return 0;
+ } else if (r >= 0) {
if (cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
cinfo.ifa_valid * USEC_PER_SEC,
USEC_PER_SEC);
}
- address_get(link, family, &in_addr, prefixlen, &address);
+ (void) address_get(link, family, &in_addr, prefixlen, &address);
switch (type) {
case RTM_NEWADDR:
if (address)
log_link_debug(link, "Updating address: %s/%u (valid %s%s)", buf, prefixlen,
- valid_str ? "for " : "forever", valid_str ?: "");
+ valid_str ? "for " : "forever", strempty(valid_str));
else {
/* An address appeared that we did not request */
r = address_add_foreign(link, family, &in_addr, prefixlen, &address);
if (r < 0) {
- log_link_warning_errno(link, r, "Failed to add address %s/%u: %m", buf, prefixlen);
+ log_link_warning_errno(link, r, "Failed to add address %s/%u, ignoring: %m", buf, prefixlen);
return 0;
} else
log_link_debug(link, "Adding address: %s/%u (valid %s%s)", buf, prefixlen,
- valid_str ? "for " : "forever", valid_str ?: "");
+ valid_str ? "for " : "forever", strempty(valid_str));
}
- address_update(address, flags, scope, &cinfo);
+ r = address_update(address, flags, scope, &cinfo);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "Failed to update address %s/%u, ignoring: %m", buf, prefixlen);
+ return 0;
+ }
break;
if (address) {
log_link_debug(link, "Removing address: %s/%u (valid %s%s)", buf, prefixlen,
- valid_str ? "for " : "forever", valid_str ?: "");
- address_drop(address);
+ valid_str ? "for " : "forever", strempty(valid_str));
+ (void) address_drop(address);
} else
- log_link_warning(link, "Removing non-existent address: %s/%u (valid %s%s)", buf, prefixlen,
- valid_str ? "for " : "forever", valid_str ?: "");
+ log_link_warning(link, "Removing non-existent address: %s/%u (valid %s%s), ignoring", buf, prefixlen,
+ valid_str ? "for " : "forever", strempty(valid_str));
break;
default:
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: Could not receive link: %m");
+ log_warning_errno(r, "rtnl: Could not receive link, ignoring: %m");
return 0;
}
r = sd_netlink_message_get_type(message, &type);
if (r < 0) {
- log_warning_errno(r, "rtnl: Could not get message type: %m");
+ log_warning_errno(r, "rtnl: Could not get message type, ignoring: %m");
return 0;
- } else if (type != RTM_NEWLINK && type != RTM_DELLINK) {
- log_warning("rtnl: Received unexpected message type when processing link");
+ } else if (!IN_SET(type, RTM_NEWLINK, RTM_DELLINK)) {
+ log_warning("rtnl: Received unexpected message type when processing link, ignoring");
return 0;
}
r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
if (r < 0) {
- log_warning_errno(r, "rtnl: Could not get ifindex from link: %m");
+ log_warning_errno(r, "rtnl: Could not get ifindex from link, ignoring: %m");
return 0;
} else if (ifindex <= 0) {
- log_warning("rtnl: received link message with invalid ifindex: %d", ifindex);
+ log_warning("rtnl: received link message with invalid ifindex %d, ignoring", ifindex);
return 0;
}
r = sd_netlink_message_read_string(message, IFLA_IFNAME, &name);
if (r < 0) {
- log_warning_errno(r, "rtnl: Received link message without ifname: %m");
+ log_warning_errno(r, "rtnl: Received link message without ifname, ignoring: %m");
return 0;
}
/* link is new, so add it */
r = link_add(m, message, &link);
if (r < 0) {
- log_warning_errno(r, "Could not add new link: %m");
+ log_warning_errno(r, "Could not add new link, ignoring: %m");
return 0;
}
}
/* netdev exists, so make sure the ifindex matches */
r = netdev_set_ifindex(netdev, message);
if (r < 0) {
- log_warning_errno(r, "Could not set ifindex on netdev: %m");
+ log_warning_errno(r, "Could not set ifindex on netdev, ignoring: %m");
return 0;
}
}
r = link_update(link, message);
- if (r < 0)
+ if (r < 0) {
+ log_warning_errno(r, "Could not update link, ignoring: %m");
return 0;
+ }
break;
return 1;
}
+int manager_rtnl_process_rule(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
+ uint8_t tos = 0, to_prefixlen = 0, from_prefixlen = 0;
+ union in_addr_union to = {}, from = {};
+ RoutingPolicyRule *rule = NULL;
+ uint32_t fwmark = 0, table = 0;
+ char *iif = NULL, *oif = NULL;
+ Manager *m = userdata;
+ uint16_t type;
+ int family;
+ int r;
+
+ assert(rtnl);
+ assert(message);
+ assert(m);
+
+ if (sd_netlink_message_is_error(message)) {
+ r = sd_netlink_message_get_errno(message);
+ if (r < 0)
+ log_warning_errno(r, "rtnl: failed to receive rule, ignoring: %m");
+
+ return 0;
+ }
+
+ r = sd_netlink_message_get_type(message, &type);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
+ return 0;
+ } else if (!IN_SET(type, RTM_NEWRULE, RTM_DELRULE)) {
+ log_warning("rtnl: received unexpected message type '%u' when processing rule, ignoring", type);
+ return 0;
+ }
+
+ r = sd_rtnl_message_get_family(message, &family);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get rule family, ignoring: %m");
+ return 0;
+ } else if (!IN_SET(family, AF_INET, AF_INET6)) {
+ log_debug("rtnl: received address with invalid family %u, ignoring", family);
+ return 0;
+ }
+
+ switch (family) {
+ case AF_INET:
+ r = sd_netlink_message_read_in_addr(message, FRA_SRC, &from.in);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m");
+ return 0;
+ } else if (r >= 0) {
+ r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &from_prefixlen);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: failed to retrive rule from prefix length, ignoring: %m");
+ return 0;
+ }
+ }
+
+ r = sd_netlink_message_read_in_addr(message, FRA_DST, &to.in);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m");
+ return 0;
+ } else if (r >= 0) {
+ r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &to_prefixlen);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: failed to retrive rule to prefix length, ignoring: %m");
+ return 0;
+ }
+ }
+
+ break;
+
+ case AF_INET6:
+ r = sd_netlink_message_read_in6_addr(message, FRA_SRC, &from.in6);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m");
+ return 0;
+ } else if (r >= 0) {
+ r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &from_prefixlen);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: failed to retrive rule from prefix length, ignoring: %m");
+ return 0;
+ }
+ }
+
+ r = sd_netlink_message_read_in6_addr(message, FRA_DST, &to.in6);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m");
+ return 0;
+ } else if (r >= 0) {
+ r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &to_prefixlen);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: failed to retrive rule to prefix length, ignoring: %m");
+ return 0;
+ }
+ }
+
+ break;
+
+ default:
+ assert_not_reached("Received unsupported address family");
+ }
+
+ if (from_prefixlen == 0 && to_prefixlen == 0)
+ return 0;
+
+ r = sd_netlink_message_read_u32(message, FRA_FWMARK, &fwmark);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_FWMARK attribute, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_u32(message, FRA_TABLE, &table);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_TABLE attribute, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_rtnl_message_routing_policy_rule_get_tos(message, &tos);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get ip rule TOS, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_string(message, FRA_IIFNAME, (const char **) &iif);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_IIFNAME attribute, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_string(message, FRA_OIFNAME, (const char **) &oif);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_OIFNAME attribute, ignoring: %m");
+ return 0;
+ }
+
+ (void) routing_policy_rule_get(m, family, &from, from_prefixlen, &to, to_prefixlen, tos, fwmark, table, iif, oif, &rule);
+
+ switch (type) {
+ case RTM_NEWRULE:
+ if (!rule) {
+ r = routing_policy_rule_add_foreign(m, family, &from, from_prefixlen, &to, to_prefixlen, tos, fwmark, table, iif, oif, &rule);
+ if (r < 0) {
+ log_warning_errno(r, "Could not add rule, ignoring: %m");
+ return 0;
+ }
+ }
+ break;
+ case RTM_DELRULE:
+ routing_policy_rule_free(rule);
+
+ break;
+
+ default:
+ assert_not_reached("Received invalid RTNL message type");
+ }
+
+ return 1;
+}
+
static int systemd_netlink_fd(void) {
int n, fd, rtnl_fd = -EINVAL;
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;
if (r < 0)
return r;
+ r = sd_netlink_add_match(m->rtnl, RTM_NEWRULE, &manager_rtnl_process_rule, m);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_add_match(m->rtnl, RTM_DELRULE, &manager_rtnl_process_rule, m);
+ if (r < 0)
+ return r;
+
return 0;
}
-static int ordered_set_put_in_addr(OrderedSet *s, const struct in_addr *address) {
+static int ordered_set_put_in_addr_data(OrderedSet *s, const struct in_addr_data *address) {
char *p;
int r;
assert(s);
+ assert(address);
+
+ r = in_addr_to_string(address->family, &address->address, &p);
+ if (r < 0)
+ return r;
+
+ r = ordered_set_consume(s, p);
+ if (r == -EEXIST)
+ return 0;
+
+ return r;
+}
+
+static int ordered_set_put_in_addr_datav(OrderedSet *s, const struct in_addr_data *addresses, unsigned n) {
+ int r, c = 0;
+ unsigned i;
+
+ assert(s);
+ assert(addresses || n == 0);
+
+ for (i = 0; i < n; i++) {
+ r = ordered_set_put_in_addr_data(s, addresses+i);
+ if (r < 0)
+ return r;
+
+ c += r;
+ }
+
+ return c;
+}
+
+static int ordered_set_put_in4_addr(OrderedSet *s, const struct in_addr *address) {
+ char *p;
+ int r;
+
+ assert(s);
+ assert(address);
r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p);
if (r < 0)
return r;
}
-static int ordered_set_put_in_addrv(OrderedSet *s, const struct in_addr *addresses, int n) {
- int r, i, c = 0;
+static int ordered_set_put_in4_addrv(OrderedSet *s, const struct in_addr *addresses, unsigned n) {
+ int r, c = 0;
+ unsigned i;
assert(s);
- assert(n <= 0 || addresses);
+ assert(n == 0 || addresses);
for (i = 0; i < n; i++) {
- r = ordered_set_put_in_addr(s, addresses+i);
+ r = ordered_set_put_in4_addr(s, addresses+i);
if (r < 0)
return r;
continue;
/* First add the static configured entries */
- r = ordered_set_put_strdupv(dns, link->network->dns);
+ r = ordered_set_put_in_addr_datav(dns, link->network->dns, link->network->n_dns);
if (r < 0)
return r;
r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
if (r > 0) {
- r = ordered_set_put_in_addrv(dns, addresses, r);
+ r = ordered_set_put_in4_addrv(dns, addresses, r);
if (r < 0)
return r;
} else if (r < 0 && r != -ENODATA)
r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
if (r > 0) {
- r = ordered_set_put_in_addrv(ntp, addresses, r);
+ r = ordered_set_put_in4_addrv(ntp, addresses, r);
if (r < 0)
return r;
} else if (r < 0 && r != -ENODATA)
if (link->network->dhcp_use_domains != DHCP_USE_DOMAINS_NO) {
const char *domainname;
+ char **domains = NULL;
+ OrderedSet *target_domains = (link->network->dhcp_use_domains == DHCP_USE_DOMAINS_YES) ? search_domains : route_domains;
r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
if (r >= 0) {
+ r = ordered_set_put_strdup(target_domains, domainname);
+ if (r < 0)
+ return r;
+ } else if (r != -ENODATA)
+ return r;
- if (link->network->dhcp_use_domains == DHCP_USE_DOMAINS_YES)
- r = ordered_set_put_strdup(search_domains, domainname);
- else
- r = ordered_set_put_strdup(route_domains, domainname);
-
+ r = sd_dhcp_lease_get_search_domains(link->dhcp_lease, &domains);
+ if (r >= 0) {
+ r = ordered_set_put_strdupv(target_domains, domains);
if (r < 0)
return r;
} else if (r != -ENODATA)
if (r < 0)
return r;
- fchmod(fileno(f), 0644);
+ (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
+ (void) fchmod(fileno(f), 0644);
fprintf(f,
"# This is private data. Do not parse.\n"
print_string_set(f, "DOMAINS=", search_domains);
print_string_set(f, "ROUTE_DOMAINS=", route_domains);
+ r = routing_policy_serialize_rules(m->rules, f);
+ if (r < 0)
+ goto fail;
+
r = fflush_and_check(f);
if (r < 0)
goto fail;
return 1;
}
-int manager_new(Manager **ret) {
- _cleanup_manager_free_ Manager *m = NULL;
+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_freep) Manager *m = NULL;
int r;
m = new0(Manager, 1);
if (!m->state_file)
return -ENOMEM;
- r = sd_event_default(&m->event);
- 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);
+ m->event = sd_event_ref(event);
r = sd_event_add_post(m->event, NULL, manager_dirty_handler, m);
if (r < 0)
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;
- *ret = m;
- m = NULL;
+ (void) routing_policy_load_rules(m->state_file, &m->rules_saved);
+
+ *ret = TAKE_PTR(m);
return 0;
}
free(m->state_file);
+ 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);
- while ((network = m->networks))
- network_free(network);
-
hashmap_free(m->networks_by_name);
while ((netdev = hashmap_first(m->netdevs)))
while ((pool = m->address_pools))
address_pool_free(pool);
+ set_free(m->rules);
+ set_free(m->rules_foreign);
+
+ set_free_with_destructor(m->rules_saved, routing_policy_rule_free);
+
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);
-}
-
-static bool manager_check_idle(void *userdata) {
- Manager *m = userdata;
- Link *link;
- Iterator i;
+ free(m->dynamic_timezone);
+ free(m->dynamic_hostname);
- assert(m);
-
- /* Check whether we are idle now. The only case when we decide to be idle is when there's only a loopback
- * device around, for which we have no configuration, and which already left the PENDING state. In all other
- * cases we are not idle. */
-
- HASHMAP_FOREACH(link, m->links, i) {
- /* We are not woken on udev activity, so let's just wait for the pending udev event */
- if (link->state == LINK_STATE_PENDING)
- return false;
-
- if ((link->flags & IFF_LOOPBACK) == 0)
- return false;
-
- if (link->network)
- return false;
- }
-
- return true;
+ free(m);
}
-int manager_run(Manager *m) {
+int manager_start(Manager *m) {
Link *link;
Iterator i;
HASHMAP_FOREACH(link, m->links, i)
link_save(link);
- if (m->bus)
- return bus_event_loop_with_idle(
- m->event,
- m->bus,
- "org.freedesktop.network1",
- DEFAULT_EXIT_USEC,
- manager_check_idle,
- m);
- else
- /* failed to connect to the bus, so we lose exit-on-idle logic,
- this should not happen except if dbus is not around at all */
- return sd_event_loop(m->event);
+ return 0;
}
int manager_load_config(Manager *m) {
return r;
}
+int manager_rtnl_enumerate_rules(Manager *m) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ sd_netlink_message *rule;
+ int r;
+
+ assert(m);
+ assert(m->rtnl);
+
+ r = sd_rtnl_message_new_routing_policy_rule(m->rtnl, &req, RTM_GETRULE, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_call(m->rtnl, req, 0, &reply);
+ if (r < 0) {
+ if (r == -EOPNOTSUPP) {
+ log_debug("FIB Rules are not supported by the kernel. Ignoring.");
+ return 0;
+ }
+
+ return r;
+ }
+
+ for (rule = reply; rule; rule = sd_netlink_message_next(rule)) {
+ int k;
+
+ m->enumerating = true;
+
+ k = manager_rtnl_process_rule(m->rtnl, rule, m);
+ if (k < 0)
+ r = k;
+
+ m->enumerating = false;
+ }
+
+ return r;
+}
+
int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) {
AddressPool *p;
int r;
/* the serialized state in /run is no longer up-to-date */
manager->dirty = true;
}
+
+static int set_hostname_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+ Manager *manager = userdata;
+ const sd_bus_error *e;
+
+ assert(m);
+ assert(manager);
+
+ e = sd_bus_message_get_error(m);
+ if (e)
+ log_warning_errno(sd_bus_error_get_errno(e), "Could not set hostname: %s", e->message);
+
+ return 1;
+}
+
+int manager_set_hostname(Manager *m, const char *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 || sd_bus_is_ready(m->bus) <= 0) {
+ log_info("Not connected to system bus, not setting hostname.");
+ return 0;
+ }
+
+ r = sd_bus_call_method_async(
+ m->bus,
+ NULL,
+ "org.freedesktop.hostname1",
+ "/org/freedesktop/hostname1",
+ "org.freedesktop.hostname1",
+ "SetHostname",
+ set_hostname_handler,
+ m,
+ "sb",
+ hostname,
+ false);
+
+ if (r < 0)
+ return log_error_errno(r, "Could not set transient hostname: %m");
+
+ return 0;
+}
+
+static int set_timezone_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+ Manager *manager = userdata;
+ const sd_bus_error *e;
+
+ assert(m);
+ assert(manager);
+
+ e = sd_bus_message_get_error(m);
+ if (e)
+ log_warning_errno(sd_bus_error_get_errno(e), "Could not set timezone: %s", e->message);
+
+ return 1;
+}
+
+int manager_set_timezone(Manager *m, const char *tz) {
+ int r;
+
+ assert(m);
+ assert(tz);
+
+ log_debug("Setting system timezone: '%s'", tz);
+ if (free_and_strdup(&m->dynamic_timezone, tz) < 0)
+ return log_oom();
+
+ if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
+ log_info("Not connected to system bus, not setting timezone.");
+ return 0;
+ }
+
+ r = sd_bus_call_method_async(
+ m->bus,
+ NULL,
+ "org.freedesktop.timedate1",
+ "/org/freedesktop/timedate1",
+ "org.freedesktop.timedate1",
+ "SetTimezone",
+ set_timezone_handler,
+ m,
+ "sb",
+ tz,
+ false);
+ if (r < 0)
+ return log_error_errno(r, "Could not set timezone: %m");
+
+ return 0;
+}