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
149 		pr_err("Attempt to release alive inet socket %p\n", sk);  in inet_sock_destruct()
158 	kfree(rcu_dereference_protected(inet->inet_opt, 1));  in inet_sock_destruct()
176 	struct inet_sock *inet;  in inet_autobind()  local
179 	inet = inet_sk(sk);  in inet_autobind()
180 	if (!inet->inet_num) {  in inet_autobind()
185 		inet->inet_sport = htons(inet->inet_num);  in inet_autobind()
249  *	Create an inet socket.
257 	struct inet_sock *inet;  in inet_create()  local
337 	inet = inet_sk(sk);  in inet_create()
343 		inet->inet_num = protocol;  in inet_create()
349 		inet->pmtudisc = IP_PMTUDISC_DONT;  in inet_create()
351 		inet->pmtudisc = IP_PMTUDISC_WANT;  in inet_create()
353 	atomic_set(&inet->inet_id, 0);  in inet_create()
362 	inet->uc_ttl	= -1;  in inet_create()
364 	inet->mc_ttl	= 1;  in inet_create()
366 	inet->mc_index	= 0;  in inet_create()
367 	inet->mc_list	= NULL;  in inet_create()
368 	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()
477 	struct inet_sock *inet = inet_sk(sk);  in __inet_bind()  local
505 	if (!inet_addr_valid_or_nonlocal(net, inet, addr->sin_addr.s_addr,  in __inet_bind()
528 	if (sk->sk_state != TCP_CLOSE || inet->inet_num)  in __inet_bind()
531 	inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;  in __inet_bind()
533 		inet->inet_saddr = 0;  /* Use device */  in __inet_bind()
540 			inet->inet_saddr = inet->inet_rcv_saddr = 0;  in __inet_bind()
546 				inet->inet_saddr = inet->inet_rcv_saddr = 0;  in __inet_bind()
554 	if (inet->inet_rcv_saddr)  in __inet_bind()
558 	inet->inet_sport = htons(inet->inet_num);  in __inet_bind()
559 	inet->inet_daddr = 0;  in __inet_bind()
560 	inet->inet_dport = 0;  in __inet_bind()
801 	struct inet_sock *inet	= inet_sk(sk);  in inet_getname()  local
808 		if (!inet->inet_dport ||  in inet_getname()
814 		sin->sin_port = inet->inet_dport;  in inet_getname()
815 		sin->sin_addr.s_addr = inet->inet_daddr;  in inet_getname()
819 		__be32 addr = inet->inet_rcv_saddr;  in inet_getname()
821 			addr = inet->inet_saddr;  in inet_getname()
822 		sin->sin_port = inet->inet_sport;  in inet_getname()
950  *	ioctl() calls you can issue on an INET socket. Most of these are
1257 	struct inet_sock *inet = inet_sk(sk);  in inet_sk_reselect_saddr()  local
1258 	__be32 old_saddr = inet->inet_saddr;  in inet_sk_reselect_saddr()
1259 	__be32 daddr = inet->inet_daddr;  in inet_sk_reselect_saddr()
1266 	inet_opt = rcu_dereference_protected(inet->inet_opt,  in inet_sk_reselect_saddr()
1272 	fl4 = &inet->cork.fl.u.ip4;  in inet_sk_reselect_saddr()
1274 			      sk->sk_protocol, inet->inet_sport,  in inet_sk_reselect_saddr()
1275 			      inet->inet_dport, sk);  in inet_sk_reselect_saddr()
1295 		pr_info("%s(): shifting inet->saddr from %pI4 to %pI4\n",  in inet_sk_reselect_saddr()
1313 	struct inet_sock *inet = inet_sk(sk);  in inet_sk_rebuild_header()  local
1325 	inet_opt = rcu_dereference(inet->inet_opt);  in inet_sk_rebuild_header()
1326 	daddr = inet->inet_daddr;  in inet_sk_rebuild_header()
1330 	fl4 = &inet->cork.fl.u.ip4;  in inet_sk_rebuild_header()
1331 	rt = ip_route_output_ports(sock_net(sk), fl4, sk, daddr, inet->inet_saddr,  in inet_sk_rebuild_header()
1332 				   inet->inet_dport, inet->inet_sport,  in inet_sk_rebuild_header()
2018 		pr_crit("%s: Cannot init ipv4 inet pernet ops\n", __func__);  in inet_init()