diff options
| -rw-r--r-- | accel-pppd/libnetlink/iputils.c | 30 | ||||
| -rw-r--r-- | accel-pppd/libnetlink/iputils.h | 1 |
2 files changed, 31 insertions, 0 deletions
diff --git a/accel-pppd/libnetlink/iputils.c b/accel-pppd/libnetlink/iputils.c index 1052b609..601b8954 100644 --- a/accel-pppd/libnetlink/iputils.c +++ b/accel-pppd/libnetlink/iputils.c @@ -153,6 +153,36 @@ out: return r; } +int __export iplink_set_mtu(int ifindex, int mtu) +{ + struct iplink_req { + struct nlmsghdr n; + struct ifinfomsg i; + char buf[1024]; + } req; + struct rtnl_handle *rth = net->rtnl_get(); + int r; + + if (!rth) + return -1; + + memset(&req, 0, sizeof(req) - 1024); + + req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); + req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; + req.n.nlmsg_type = RTM_SETLINK; + req.i.ifi_family = AF_UNSPEC; + req.i.ifi_index = ifindex; + + addattr_l(&req.n, 1024, IFLA_MTU, &mtu, 4); + + r = rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL, 0); + + net->rtnl_put(rth); + + return r; +} + int __export iplink_vlan_add(const char *ifname, int ifindex, int vid) { struct iplink_req { diff --git a/accel-pppd/libnetlink/iputils.h b/accel-pppd/libnetlink/iputils.h index 301cfed1..9bdc93da 100644 --- a/accel-pppd/libnetlink/iputils.h +++ b/accel-pppd/libnetlink/iputils.h @@ -7,6 +7,7 @@ typedef int (*iplink_list_func)(int index, int flags, const char *name, int ifli int iplink_list(iplink_list_func func, void *arg); int iplink_get_stats(int ifindex, struct rtnl_link_stats *stats); +int iplink_set_mtu(int ifindex, int mtu); int iplink_vlan_add(const char *ifname, int ifindex, int vid); int iplink_vlan_del(int ifindex); |