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networkd: ipv4ll - default to setting up ipv4ll routes

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This is necessary for non-ipv4ll hosts to communicate with ipv4ll-only hosts on the same link. Defaults
to being enabled, but can be opted out.

See: <http://avahi.org/wiki/AvahiAutoipd#Routes>
This commit is contained in:
Tom Gundersen
2014-07-25 02:14:23 +02:00
parent 3c072310d5
commit bfa695b5cc
4 changed files with 33 additions and 0 deletions
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src/network/networkd-network.c
+22
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@@ -86,6 +86,8 @@ static int network_load_one(Manager *manager, const char *filename) {
if (!network->filename)
return log_oom();
network->ipv4ll_route = true;
network->dhcp_ntp = true;
network->dhcp_dns = true;
network->dhcp_hostname = true;
@@ -247,6 +249,26 @@ int network_apply(Manager *manager, Network *network, Link *link) {
link->network = network;
if (network->ipv4ll_route) {
Route *route;
r = route_new_static(network, 0, &route);
if (r < 0)
return r;
r = inet_pton(AF_INET, "169.254.0.0", &route->dst_addr.in);
if (r == 0)
return -EINVAL;
if (r < 0)
return -errno;
route->family = AF_INET;
route->dst_prefixlen = 16;
route->scope = RT_SCOPE_LINK;
route->metrics = IPV4LL_ROUTE_METRIC;
route->protocol = RTPROT_STATIC;
}
if (network->dns || network->ntp) {
r = link_save(link);
if (r < 0)