networkd: Allow specifying RouteTable for RAs

5 files changed, 15 insertions, 3 deletions

diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 961ff64ff0..2e4d927470 100644
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -966,6 +966,15 @@
             project='man-pages'><refentrytitle>resolv.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
           </listitem>
         </varlistentry>
+
+        <varlistentry>
+          <term><varname>RouteTable=<replaceable>num</replaceable></varname></term>
+          <listitem>
+            <para>The table identifier for dhcp routes (a number between 1 and 4294967295, or 0 to unset).
+            The table can be retrieved using <command>ip route show table <replaceable>num</replaceable></command>.
+            </para>
+          </listitem>
+        </varlistentry>
       </variablelist>
   </refsect1>
 
diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index d9c18b32a5..c2b7970623 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -94,7 +94,7 @@ static void ndisc_router_process_default(Link *link, sd_ndisc_router *rt) {
         }
 
         route->family = AF_INET6;
-        route->table = RT_TABLE_MAIN;
+        route->table = link->network->ipv6_accept_ra_route_table;
         route->protocol = RTPROT_RA;
         route->pref = preference;
         route->gw.in6 = gateway;
@@ -214,7 +214,7 @@ static void ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt)
         }
 
         route->family = AF_INET6;
-        route->table = RT_TABLE_MAIN;
+        route->table = link->network->ipv6_accept_ra_route_table;
         route->protocol = RTPROT_RA;
         route->flags = RTM_F_PREFIX;
         route->dst_prefixlen = prefixlen;
@@ -285,7 +285,7 @@ static void ndisc_router_process_route(Link *link, sd_ndisc_router *rt) {
         }
 
         route->family = AF_INET6;
-        route->table = RT_TABLE_MAIN;
+        route->table = link->network->ipv6_accept_ra_route_table;
         route->protocol = RTPROT_RA;
         route->pref = preference;
         route->gw.in6 = gateway;
diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf
index 65ea20c4ca..62779c7c48 100644
--- a/src/network/networkd-network-gperf.gperf
+++ b/src/network/networkd-network-gperf.gperf
@@ -97,6 +97,7 @@ DHCP.UseTimezone,                       config_parse_bool,
 DHCP.IAID,                              config_parse_iaid,                              0,                             offsetof(Network, iaid)
 IPv6AcceptRA.UseDNS,                    config_parse_bool,                              0,                             offsetof(Network, ipv6_accept_ra_use_dns)
 IPv6AcceptRA.UseDomains,                config_parse_dhcp_use_domains,                  0,                             offsetof(Network, ipv6_accept_ra_use_domains)
+IPv6AcceptRA.RouteTable,                config_parse_dhcp_route_table,                  0,                             offsetof(Network, ipv6_accept_ra_route_table)
 DHCPServer.MaxLeaseTimeSec,             config_parse_sec,                               0,                             offsetof(Network, dhcp_server_max_lease_time_usec)
 DHCPServer.DefaultLeaseTimeSec,         config_parse_sec,                               0,                             offsetof(Network, dhcp_server_default_lease_time_usec)
 DHCPServer.EmitDNS,                     config_parse_bool,                              0,                             offsetof(Network, dhcp_server_emit_dns)
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index c7dc785b24..584cb96979 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -138,6 +138,7 @@ static int network_load_one(Manager *manager, const char *filename) {
         network->proxy_arp = -1;
         network->arp = -1;
         network->ipv6_accept_ra_use_dns = true;
+        network->ipv6_accept_ra_route_table = RT_TABLE_MAIN;
 
         dropin_dirname = strjoina(network->name, ".network.d");
 
diff --git a/src/network/networkd-network.h b/src/network/networkd-network.h
index a34dbf5c7b..ef4b499ab9 100644
--- a/src/network/networkd-network.h
+++ b/src/network/networkd-network.h
@@ -167,6 +167,7 @@ struct Network {
 
         bool ipv6_accept_ra_use_dns;
         DHCPUseDomains ipv6_accept_ra_use_domains;
+        uint32_t ipv6_accept_ra_route_table;
 
         union in_addr_union ipv6_token;
         IPv6PrivacyExtensions ipv6_privacy_extensions;