+ vnet_netlink_msg_t m;
+ struct ifinfomsg ifmsg = { 0 };
+
+ ifmsg.ifi_index = ifindex;
+ vnet_netlink_msg_init (&m, RTM_SETLINK, NLM_F_REQUEST,
+ &ifmsg, sizeof (struct ifinfomsg));
+
+ vnet_netlink_msg_add_rtattr (&m, IFLA_NET_NS_FD, &netns_fd, sizeof (int));
+ if (new_ifname)
+ vnet_netlink_msg_add_rtattr (&m, IFLA_IFNAME, new_ifname,
+ strlen (new_ifname) + 1);
+
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_set_link_master (int ifindex, char *master_ifname)
+{
+ vnet_netlink_msg_t m;
+ struct ifinfomsg ifmsg = { 0 };
+ int i;
+
+ ifmsg.ifi_index = ifindex;
+
+ if ((i = if_nametoindex (master_ifname)) == 0)
+ clib_error_return_unix (0, "unknown master interface '%s'",
+ master_ifname);
+
+ vnet_netlink_msg_init (&m, RTM_SETLINK, NLM_F_REQUEST,
+ &ifmsg, sizeof (struct ifinfomsg));
+ vnet_netlink_msg_add_rtattr (&m, IFLA_MASTER, &i, sizeof (int));
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_set_link_addr (int ifindex, u8 * mac)
+{
+ vnet_netlink_msg_t m;
+ struct ifinfomsg ifmsg = { 0 };
+
+ ifmsg.ifi_index = ifindex;
+
+ vnet_netlink_msg_init (&m, RTM_SETLINK, NLM_F_REQUEST,
+ &ifmsg, sizeof (struct ifinfomsg));
+ vnet_netlink_msg_add_rtattr (&m, IFLA_ADDRESS, mac, 6);
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_set_link_state (int ifindex, int up)
+{
+ vnet_netlink_msg_t m;
+ struct ifinfomsg ifmsg = { 0 };
+
+ ifmsg.ifi_flags = IFF_UP;
+ ifmsg.ifi_change = IFF_UP;
+ ifmsg.ifi_index = ifindex;
+
+ vnet_netlink_msg_init (&m, RTM_SETLINK, NLM_F_REQUEST,
+ &ifmsg, sizeof (struct ifinfomsg));
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_set_link_mtu (int ifindex, int mtu)
+{
+ vnet_netlink_msg_t m;
+ struct ifinfomsg ifmsg = { 0 };
+
+ ifmsg.ifi_index = ifindex;
+
+ vnet_netlink_msg_init (&m, RTM_SETLINK, NLM_F_REQUEST,
+ &ifmsg, sizeof (struct ifinfomsg));
+ vnet_netlink_msg_add_rtattr (&m, IFLA_MTU, &mtu, sizeof (int));
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_add_ip4_addr (int ifindex, void *addr, int pfx_len)
+{
+ vnet_netlink_msg_t m;
+ struct ifaddrmsg ifa = { 0 };
+
+ ifa.ifa_family = AF_INET;
+ ifa.ifa_prefixlen = pfx_len;
+ ifa.ifa_index = ifindex;
+
+ vnet_netlink_msg_init (&m, RTM_NEWADDR,
+ NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL,
+ &ifa, sizeof (struct ifaddrmsg));
+
+ vnet_netlink_msg_add_rtattr (&m, IFA_LOCAL, addr, 4);
+ vnet_netlink_msg_add_rtattr (&m, IFA_ADDRESS, addr, 4);
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_add_ip6_addr (int ifindex, void *addr, int pfx_len)
+{
+ vnet_netlink_msg_t m;
+ struct ifaddrmsg ifa = { 0 };
+
+ ifa.ifa_family = AF_INET6;
+ ifa.ifa_prefixlen = pfx_len;
+ ifa.ifa_index = ifindex;
+
+ vnet_netlink_msg_init (&m, RTM_NEWADDR,
+ NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL,
+ &ifa, sizeof (struct ifaddrmsg));
+
+ vnet_netlink_msg_add_rtattr (&m, IFA_LOCAL, addr, 16);
+ vnet_netlink_msg_add_rtattr (&m, IFA_ADDRESS, addr, 16);
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_add_ip4_route (void *dst, u8 dst_len, void *gw)
+{
+ vnet_netlink_msg_t m;
+ struct rtmsg rtm = { 0 };
+ u8 dflt[4] = { 0 };
+
+ rtm.rtm_family = AF_INET;
+ rtm.rtm_table = RT_TABLE_MAIN;
+ rtm.rtm_type = RTN_UNICAST;
+ rtm.rtm_dst_len = dst_len;
+
+ vnet_netlink_msg_init (&m, RTM_NEWROUTE,
+ NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL,
+ &rtm, sizeof (struct rtmsg));
+
+ vnet_netlink_msg_add_rtattr (&m, RTA_GATEWAY, gw, 4);
+ vnet_netlink_msg_add_rtattr (&m, RTA_DST, dst ? dst : dflt, 4);
+ return vnet_netlink_msg_send (&m);
+}
+
+clib_error_t *
+vnet_netlink_add_ip6_route (void *dst, u8 dst_len, void *gw)
+{
+ vnet_netlink_msg_t m;
+ struct rtmsg rtm = { 0 };
+ u8 dflt[16] = { 0 };
+
+ rtm.rtm_family = AF_INET6;
+ rtm.rtm_table = RT_TABLE_MAIN;
+ rtm.rtm_type = RTN_UNICAST;
+ rtm.rtm_dst_len = dst_len;
+
+ vnet_netlink_msg_init (&m, RTM_NEWROUTE,
+ NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL,
+ &rtm, sizeof (struct rtmsg));
+
+ vnet_netlink_msg_add_rtattr (&m, RTA_GATEWAY, gw, 16);
+ vnet_netlink_msg_add_rtattr (&m, RTA_DST, dst ? dst : dflt, 16);
+ return vnet_netlink_msg_send (&m);