dhcpv4: add in_addr dhcpv4_mask and in_addr dhcpv4_addr to struct interface

[project/odhcpd.git] / src / router.c

diff --git a/src/router.c b/src/router.c
index 60d6b3f..f942d8f 100644 (file)
--- a/src/router.c
+++ b/src/router.c
@@ -209,9 +209,11 @@ static bool parse_routes(struct odhcpd_ipaddr *n, ssize_t len)
 // Router Advert server mode
 static uint64_t send_router_advert(struct interface *iface, const struct in6_addr *from)
 {
 // Router Advert server mode
 static uint64_t send_router_advert(struct interface *iface, const struct in6_addr *from)
 {

-       int mtu = odhcpd_get_interface_mtu(iface->ifname);
-       if (mtu < 0)
-               mtu = 1500;
+       int mtu = odhcpd_get_interface_config(iface->ifname, "mtu");
+       int hlim = odhcpd_get_interface_config(iface->ifname, "hop_limit");
+
+       if (mtu < 1280)
+               mtu = 1280;

 
        struct {
                struct nd_router_advert h;
 
        struct {
                struct nd_router_advert h;


@@ -224,6 +226,9 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
                .mtu = {ND_OPT_MTU, 1, 0, htonl(mtu)},
        };
 
                .mtu = {ND_OPT_MTU, 1, 0, htonl(mtu)},
        };
 

+       if (hlim > 0)
+               adv.h.nd_ra_curhoplimit = hlim;
+

        if (iface->dhcpv6)
                adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;
 
        if (iface->dhcpv6)
                adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;