60 static inline struct rtattr *rtattr_hdr(struct nlmsghdr *nh)  in rtattr_hdr()  argument
62 	return (struct rtattr *)((char *)(nh) + RTA_ALIGN((nh)->nlmsg_len));  in rtattr_hdr()
65 static int rtattr_pack(struct nlmsghdr *nh, size_t req_sz,  in rtattr_pack()  argument
69 	struct rtattr *attr = rtattr_hdr(nh);  in rtattr_pack()
70 	size_t nl_size = RTA_ALIGN(nh->nlmsg_len) + RTA_LENGTH(size);  in rtattr_pack()
76 	nh->nlmsg_len = nl_size;  in rtattr_pack()
85 static struct rtattr *_rtattr_begin(struct nlmsghdr *nh, size_t req_sz,  in _rtattr_begin()  argument
88 	struct rtattr *ret = rtattr_hdr(nh);  in _rtattr_begin()
90 	if (rtattr_pack(nh, req_sz, rta_type, payload, size))  in _rtattr_begin()
96 static inline struct rtattr *rtattr_begin(struct nlmsghdr *nh, size_t req_sz,  in rtattr_begin()  argument
99 	return _rtattr_begin(nh, req_sz, rta_type, 0, 0);  in rtattr_begin()
102 static inline void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)  in rtattr_end()  argument
104 	char *nlmsg_end = (char *)nh + nh->nlmsg_len;  in rtattr_end()
109 static int veth_pack_peerb(struct nlmsghdr *nh, size_t req_sz,  in veth_pack_peerb()  argument
119 	peer_attr = _rtattr_begin(nh, req_sz, VETH_INFO_PEER, &pi, sizeof(pi));  in veth_pack_peerb()
123 	if (rtattr_pack(nh, req_sz, IFLA_IFNAME, peer, strlen(peer)))  in veth_pack_peerb()
126 	if (rtattr_pack(nh, req_sz, IFLA_NET_NS_FD, &ns, sizeof(ns)))  in veth_pack_peerb()
129 	rtattr_end(nh, peer_attr);  in veth_pack_peerb()
139 		struct nlmsghdr		nh;  in __add_veth()  member
147 	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));  in __add_veth()
148 	req.nh.nlmsg_type	= RTM_NEWLINK;  in __add_veth()
149 	req.nh.nlmsg_flags	= flags;  in __add_veth()
150 	req.nh.nlmsg_seq	= seq;  in __add_veth()
154 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, name, strlen(name)))  in __add_veth()
157 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD, &ns_a, sizeof(ns_a)))  in __add_veth()
160 	link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);  in __add_veth()
164 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, veth_type, sizeof(veth_type)))  in __add_veth()
167 	info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);  in __add_veth()
171 	if (veth_pack_peerb(&req.nh, sizeof(req), name, ns_b))  in __add_veth()
174 	rtattr_end(&req.nh, info_data);  in __add_veth()
175 	rtattr_end(&req.nh, link_info);  in __add_veth()
177 	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {  in __add_veth()
202 		struct nlmsghdr		nh;  in __ip_addr_add()  member
210 	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));  in __ip_addr_add()
211 	req.nh.nlmsg_type	= RTM_NEWADDR;  in __ip_addr_add()
212 	req.nh.nlmsg_flags	= flags;  in __ip_addr_add()
213 	req.nh.nlmsg_seq	= seq;  in __ip_addr_add()
219 	if (rtattr_pack(&req.nh, sizeof(req), IFA_LOCAL, &addr, addr_len))  in __ip_addr_add()
222 	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {  in __ip_addr_add()
249 		struct nlmsghdr	nh;  in __ip_route_add()  member
258 	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.rt));  in __ip_route_add()
259 	req.nh.nlmsg_type	= RTM_NEWROUTE;  in __ip_route_add()
260 	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE;  in __ip_route_add()
261 	req.nh.nlmsg_seq	= seq;  in __ip_route_add()
269 	if (rtattr_pack(&req.nh, sizeof(req), RTA_DST, &dst, addr_len))  in __ip_route_add()
272 	if (rtattr_pack(&req.nh, sizeof(req), RTA_PREFSRC, &src, addr_len))  in __ip_route_add()
275 	if (rtattr_pack(&req.nh, sizeof(req), RTA_OIF, &index, sizeof(index)))  in __ip_route_add()
278 	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {  in __ip_route_add()
311 		struct nlmsghdr		nh;  in __link_set_up()  member
317 	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));  in __link_set_up()
318 	req.nh.nlmsg_type	= RTM_NEWLINK;  in __link_set_up()
319 	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;  in __link_set_up()
320 	req.nh.nlmsg_seq	= seq;  in __link_set_up()
327 	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {  in __link_set_up()
353 		struct nlmsghdr		nh;  in __add_vrf()  member
361 	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));  in __add_vrf()
362 	req.nh.nlmsg_type	= RTM_NEWLINK;  in __add_vrf()
363 	req.nh.nlmsg_flags	= flags;  in __add_vrf()
364 	req.nh.nlmsg_seq	= seq;  in __add_vrf()
369 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, name, strlen(name)))  in __add_vrf()
373 		if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD,  in __add_vrf()
377 	link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);  in __add_vrf()
381 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, vrf_type, sizeof(vrf_type)))  in __add_vrf()
384 	info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);  in __add_vrf()
388 	if (rtattr_pack(&req.nh, sizeof(req), IFLA_VRF_TABLE,  in __add_vrf()
392 	rtattr_end(&req.nh, info_data);  in __add_vrf()
393 	rtattr_end(&req.nh, link_info);  in __add_vrf()
395 	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {  in __add_vrf()