-/***
- This file is part of systemd.
-
- Copyright 2013-2014 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/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include <netinet/ether.h>
#include <linux/if.h>
#include "network-internal.h"
-#include "networkd.h"
+#include "networkd-address.h"
+#include "networkd-manager.h"
+#include "networkd-link.h"
static int ipv4ll_address_lost(Link *link) {
- _cleanup_address_free_ Address *address = NULL;
- _cleanup_route_free_ Route *route = NULL;
+ _cleanup_(address_freep) Address *address = NULL;
+ _cleanup_(route_freep) Route *route = NULL;
struct in_addr addr;
int r;
log_link_debug(link, "IPv4 link-local release %u.%u.%u.%u", ADDRESS_FMT_VAL(addr));
r = address_new(&address);
- if (r < 0) {
- log_link_error_errno(link, r, "Could not allocate address: %m");
- return r;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not allocate address: %m");
address->family = AF_INET;
address->in_addr.in = addr;
address->prefixlen = 16;
address->scope = RT_SCOPE_LINK;
- address_remove(address, link, link_address_remove_handler);
+ address_remove(address, link, NULL);
r = route_new(&route);
- if (r < 0) {
- log_link_error_errno(link, r, "Could not allocate route: %m");
- return r;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not allocate route: %m");
route->family = AF_INET;
route->scope = RT_SCOPE_LINK;
route->priority = IPV4LL_ROUTE_METRIC;
- route_remove(route, link, link_route_remove_handler);
+ route_remove(route, link, NULL);
link_check_ready(link);
return 0;
}
-static int ipv4ll_route_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
+static int ipv4ll_route_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
link->ipv4ll_route = true;
- if (link->ipv4ll_address == true)
- link_check_ready(link);
+ link_check_ready(link);
return 1;
}
-static int ipv4ll_address_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
+static int ipv4ll_route_configure(Link *link) {
+ _cleanup_(route_freep) Route *route = NULL;
+ int r;
+
+ r = route_new(&route);
+ if (r < 0)
+ return r;
+
+ route->family = AF_INET;
+ route->scope = RT_SCOPE_LINK;
+ route->protocol = RTPROT_STATIC;
+ route->priority = IPV4LL_ROUTE_METRIC;
+ route->table = link_get_vrf_table(link);
+
+ return route_configure(route, link, ipv4ll_route_handler);
+}
+
+static int ipv4ll_address_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
link->ipv4ll_address = true;
- if (link->ipv4ll_route == true)
- link_check_ready(link);
+ r = ipv4ll_route_configure(link);
+ if (r < 0) {
+ log_link_error_errno(link, r, "Failed to configure ipv4ll route: %m");
+ link_enter_failed(link);
+ }
return 1;
}
static int ipv4ll_address_claimed(sd_ipv4ll *ll, Link *link) {
- _cleanup_address_free_ Address *ll_addr = NULL;
- _cleanup_route_free_ Route *route = NULL;
+ _cleanup_(address_freep) Address *ll_addr = NULL;
struct in_addr address;
int r;
assert(ll);
assert(link);
+ link->ipv4ll_address = false;
+ link->ipv4ll_route = false;
+
r = sd_ipv4ll_get_address(ll, &address);
if (r == -ENOENT)
return 0;
if (r < 0)
return r;
- link->ipv4ll_address = false;
-
- r = route_new(&route);
- if (r < 0)
- return r;
-
- route->family = AF_INET;
- route->scope = RT_SCOPE_LINK;
- route->protocol = RTPROT_STATIC;
- route->priority = IPV4LL_ROUTE_METRIC;
-
- r = route_configure(route, link, ipv4ll_route_handler);
- if (r < 0)
- return r;
-
- link->ipv4ll_route = false;
-
return 0;
}
assert(link);
assert(link->network);
- assert(link->manager);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return;
switch(event) {
case SD_IPV4LL_EVENT_STOP:
+ r = ipv4ll_address_lost(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return;
+ }
+ break;
case SD_IPV4LL_EVENT_CONFLICT:
r = ipv4ll_address_lost(link);
if (r < 0) {
link_enter_failed(link);
return;
}
+
+ r = sd_ipv4ll_restart(ll);
+ if (r < 0)
+ log_link_warning(link, "Could not acquire IPv4 link-local address");
break;
case SD_IPV4LL_EVENT_BIND:
r = ipv4ll_address_claimed(ll, link);
if (r < 0) {
+ log_link_error(link, "Failed to configure ipv4ll address: %m");
link_enter_failed(link);
return;
}
return r;
}
- if (link->udev_device) {
- r = net_get_unique_predictable_data(link->udev_device, &seed);
- if (r >= 0) {
- r = sd_ipv4ll_set_address_seed(link->ipv4ll, seed);
- if (r < 0)
- return r;
- }
+ if (link->sd_device &&
+ net_get_unique_predictable_data(link->sd_device, &seed) >= 0) {
+ r = sd_ipv4ll_set_address_seed(link->ipv4ll, seed);
+ if (r < 0)
+ return r;
}
r = sd_ipv4ll_attach_event(link->ipv4ll, NULL, 0);
projects / thirdparty / systemd.git / blobdiff