3  * INET		An implementation of the TCP/IP protocol suite for the LINUX
4  *		operating system.  INET is implemented using the  BSD Socket
91 #include <linux/inet.h>
136 	struct inet_sock *inet = inet_sk(sk);  in inet_sock_destruct()  local
153 		pr_err("Attempt to release alive inet socket %p\n", sk);  in inet_sock_destruct()
162 	kfree(rcu_dereference_protected(inet->inet_opt, 1));  in inet_sock_destruct()
181 	struct inet_sock *inet;  in inet_autobind()  local
184 	inet = inet_sk(sk);  in inet_autobind()
185 	if (!inet->inet_num) {  in inet_autobind()
190 		inet->inet_sport = htons(inet->inet_num);  in inet_autobind()
248  *	Create an inet socket.
256 	struct inet_sock *inet;  in inet_create()  local
336 	inet = inet_sk(sk);  in inet_create()
337 	inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;  in inet_create()
339 	inet->nodefrag = 0;  in inet_create()
342 		inet->inet_num = protocol;  in inet_create()
344 			inet->hdrincl = 1;  in inet_create()
348 		inet->pmtudisc = IP_PMTUDISC_DONT;  in inet_create()
350 		inet->pmtudisc = IP_PMTUDISC_WANT;  in inet_create()
352 	inet->inet_id = 0;  in inet_create()
360 	inet->uc_ttl	= -1;  in inet_create()
361 	inet->mc_loop	= 1;  in inet_create()
362 	inet->mc_ttl	= 1;  in inet_create()
363 	inet->mc_all	= 1;  in inet_create()
364 	inet->mc_index	= 0;  in inet_create()
365 	inet->mc_list	= NULL;  in inet_create()
366 	inet->rcv_tos	= 0;  in inet_create()
370 	if (inet->inet_num) {  in inet_create()
376 		inet->inet_sport = htons(inet->inet_num);  in inet_create()
469 	struct inet_sock *inet = inet_sk(sk);  in __inet_bind()  local
497 	if (!inet_can_nonlocal_bind(net, inet) &&  in __inet_bind()
522 	if (sk->sk_state != TCP_CLOSE || inet->inet_num)  in __inet_bind()
525 	inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;  in __inet_bind()
527 		inet->inet_saddr = 0;  /* Use device */  in __inet_bind()
530 	if (snum || !(inet->bind_address_no_port ||  in __inet_bind()
533 			inet->inet_saddr = inet->inet_rcv_saddr = 0;  in __inet_bind()
540 				inet->inet_saddr = inet->inet_rcv_saddr = 0;  in __inet_bind()
546 	if (inet->inet_rcv_saddr)  in __inet_bind()
550 	inet->inet_sport = htons(inet->inet_num);  in __inet_bind()
551 	inet->inet_daddr = 0;  in __inet_bind()
552 	inet->inet_dport = 0;  in __inet_bind()
783 	struct inet_sock *inet	= inet_sk(sk);  in inet_getname()  local
788 		if (!inet->inet_dport ||  in inet_getname()
792 		sin->sin_port = inet->inet_dport;  in inet_getname()
793 		sin->sin_addr.s_addr = inet->inet_daddr;  in inet_getname()
795 		__be32 addr = inet->inet_rcv_saddr;  in inet_getname()
797 			addr = inet->inet_saddr;  in inet_getname()
798 		sin->sin_port = inet->inet_sport;  in inet_getname()
931  *	ioctl() calls you can issue on an INET socket. Most of these are
1236 	struct inet_sock *inet = inet_sk(sk);  in inet_sk_reselect_saddr()  local
1237 	__be32 old_saddr = inet->inet_saddr;  in inet_sk_reselect_saddr()
1238 	__be32 daddr = inet->inet_daddr;  in inet_sk_reselect_saddr()
1244 	inet_opt = rcu_dereference_protected(inet->inet_opt,  in inet_sk_reselect_saddr()
1250 	fl4 = &inet->cork.fl.u.ip4;  in inet_sk_reselect_saddr()
1253 			      inet->inet_sport, inet->inet_dport, sk);  in inet_sk_reselect_saddr()
1265 		pr_info("%s(): shifting inet->saddr from %pI4 to %pI4\n",  in inet_sk_reselect_saddr()
1269 	inet->inet_saddr = inet->inet_rcv_saddr = new_saddr;  in inet_sk_reselect_saddr()
1284 	struct inet_sock *inet = inet_sk(sk);  in inet_sk_rebuild_header()  local
1297 	inet_opt = rcu_dereference(inet->inet_opt);  in inet_sk_rebuild_header()
1298 	daddr = inet->inet_daddr;  in inet_sk_rebuild_header()
1302 	fl4 = &inet->cork.fl.u.ip4;  in inet_sk_rebuild_header()
1303 	rt = ip_route_output_ports(sock_net(sk), fl4, sk, daddr, inet->inet_saddr,  in inet_sk_rebuild_header()
1304 				   inet->inet_dport, inet->inet_sport,  in inet_sk_rebuild_header()
2063 		pr_crit("%s: Cannot init ipv4 inet pernet ops\n", __func__);  in inet_init()