Add support for DHCP static route options

This adds support for DHCP options 33 and 121: Static Route and
Classless Static Route. To enable this feature, set UseRoutes=true
in .network file. Returned routes are added to the routing table.

1 files changed, 8 insertions, 1 deletions

diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h
index ff09583604..d4675f3e47 100644
--- a/src/libsystemd-network/dhcp-lease-internal.h
+++ b/src/libsystemd-network/dhcp-lease-internal.h
@@ -32,6 +32,12 @@
 
 #include "sd-dhcp-client.h"
 
+struct sd_dhcp_route {
+        struct in_addr dst_addr;
+        struct in_addr gw_addr;
+        uint8_t dst_prefixlen;
+};
+
 struct sd_dhcp_lease {
         RefCount n_ref;
 
@@ -52,8 +58,9 @@ struct sd_dhcp_lease {
         size_t ntp_size;
         struct in_addr *policy_filter;
         size_t policy_filter_size;
-        struct in_addr *static_route;
+        struct sd_dhcp_route *static_route;
         size_t static_route_size;
+        size_t static_route_allocated;
         uint16_t boot_file_size;
         uint16_t mdr;
         uint16_t mtu;