config: make RA mtu configurable via UCI

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

diff --git a/src/config.c b/src/config.c
index acf30de..d6b4e81 100644 (file)
--- a/src/config.c
+++ b/src/config.c
@@ -50,6 +50,7 @@ enum {
        IFACE_ATTR_RA_MAXINTERVAL,
        IFACE_ATTR_RA_LIFETIME,
        IFACE_ATTR_RA_USELEASETIME,
+       IFACE_ATTR_RA_MTU,
        IFACE_ATTR_PD_MANAGER,
        IFACE_ATTR_PD_CER,
        IFACE_ATTR_NDPROXY_ROUTING,
@@ -88,6 +89,7 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
+       [IFACE_ATTR_RA_MTU] = { .name = "ra_mtu", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
 };
@@ -594,6 +596,12 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
                iface->managed = blobmsg_get_u32(c);
 
+       if ((c = tb[IFACE_ATTR_RA_MTU])) {
+               iface->ra_mtu = blobmsg_get_u32(c);
+               if (iface->ra_mtu < 1280)
+                       goto err;
+       }
+
        if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
                iface->ra_not_onlink = blobmsg_get_bool(c);