96 void raw_hash_sk(struct sock *sk)  in raw_hash_sk()  argument
98 	struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;  in raw_hash_sk()
101 	head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)];  in raw_hash_sk()
104 	sk_add_node(sk, head);  in raw_hash_sk()
105 	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);  in raw_hash_sk()
110 void raw_unhash_sk(struct sock *sk)  in raw_unhash_sk()  argument
112 	struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;  in raw_unhash_sk()
115 	if (sk_del_node_init(sk))  in raw_unhash_sk()
116 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);  in raw_unhash_sk()
121 static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,  in __raw_v4_lookup()  argument
124 	sk_for_each_from(sk) {  in __raw_v4_lookup()
125 		struct inet_sock *inet = inet_sk(sk);  in __raw_v4_lookup()
127 		if (net_eq(sock_net(sk), net) && inet->inet_num == num	&&  in __raw_v4_lookup()
130 		    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))  in __raw_v4_lookup()
133 	sk = NULL;  in __raw_v4_lookup()
135 	return sk;  in __raw_v4_lookup()
142 static int icmp_filter(const struct sock *sk, const struct sk_buff *skb)  in icmp_filter()  argument
153 		__u32 data = raw_sk(sk)->filter.data;  in icmp_filter()
170 	struct sock *sk;  in raw_v4_input()  local
181 	sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,  in raw_v4_input()
185 	while (sk) {  in raw_v4_input()
187 		if ((iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) &&  in raw_v4_input()
188 		    ip_mc_sf_allow(sk, iph->daddr, iph->saddr,  in raw_v4_input()
194 				raw_rcv(sk, clone);  in raw_v4_input()
196 		sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,  in raw_v4_input()
223 static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)  in raw_err()  argument
225 	struct inet_sock *inet = inet_sk(sk);  in raw_err()
232 		ipv4_sk_update_pmtu(skb, sk, info);  in raw_err()
234 		ipv4_sk_redirect(skb, sk);  in raw_err()
243 	if (!inet->recverr && sk->sk_state != TCP_ESTABLISHED)  in raw_err()
275 		ip_icmp_error(sk, skb, err, 0, info, payload);  in raw_err()
279 		sk->sk_err = err;  in raw_err()
280 		sk->sk_error_report(sk);  in raw_err()
310 static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)  in raw_rcv_skb()  argument
314 	ipv4_pktinfo_prepare(sk, skb);  in raw_rcv_skb()
315 	if (sock_queue_rcv_skb(sk, skb) < 0) {  in raw_rcv_skb()
323 int raw_rcv(struct sock *sk, struct sk_buff *skb)  in raw_rcv()  argument
325 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {  in raw_rcv()
326 		atomic_inc(&sk->sk_drops);  in raw_rcv()
334 	raw_rcv_skb(sk, skb);  in raw_rcv()
338 static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,  in raw_send_hdrinc()  argument
343 	struct inet_sock *inet = inet_sk(sk);  in raw_send_hdrinc()
344 	struct net *net = sock_net(sk);  in raw_send_hdrinc()
353 		ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,  in raw_send_hdrinc()
362 	skb = sock_alloc_send_skb(sk,  in raw_send_hdrinc()
369 	skb->priority = sk->sk_priority;  in raw_send_hdrinc()
370 	skb->mark = sk->sk_mark;  in raw_send_hdrinc()
380 	sock_tx_timestamp(sk, &skb_shinfo(skb)->tx_flags);  in raw_send_hdrinc()
414 	err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb,  in raw_send_hdrinc()
483 static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)  in raw_sendmsg()  argument
485 	struct inet_sock *inet = inet_sk(sk);  in raw_sendmsg()
532 		if (sk->sk_state != TCP_ESTABLISHED)  in raw_sendmsg()
542 	ipc.oif = sk->sk_bound_dev_if;  in raw_sendmsg()
545 		err = ip_cmsg_send(sock_net(sk), msg, &ipc, false);  in raw_sendmsg()
583 	tos = get_rtconn_flags(&ipc, sk);  in raw_sendmsg()
595 	flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,  in raw_sendmsg()
597 			   inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,  in raw_sendmsg()
598 			   inet_sk_flowi_flags(sk) |  in raw_sendmsg()
611 	security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));  in raw_sendmsg()
612 	rt = ip_route_output_flow(sock_net(sk), &fl4, sk);  in raw_sendmsg()
620 	if (rt->rt_flags & RTCF_BROADCAST && !sock_flag(sk, SOCK_BROADCAST))  in raw_sendmsg()
628 		err = raw_send_hdrinc(sk, &fl4, msg, len,  in raw_sendmsg()
632 		sock_tx_timestamp(sk, &ipc.tx_flags);  in raw_sendmsg()
636 		lock_sock(sk);  in raw_sendmsg()
637 		err = ip_append_data(sk, &fl4, raw_getfrag,  in raw_sendmsg()
641 			ip_flush_pending_frames(sk);  in raw_sendmsg()
643 			err = ip_push_pending_frames(sk, &fl4);  in raw_sendmsg()
647 		release_sock(sk);  in raw_sendmsg()
667 static void raw_close(struct sock *sk, long timeout)  in raw_close()  argument
672 	ip_ra_control(sk, 0, NULL);  in raw_close()
674 	sk_common_release(sk);  in raw_close()
677 static void raw_destroy(struct sock *sk)  in raw_destroy()  argument
679 	lock_sock(sk);  in raw_destroy()
680 	ip_flush_pending_frames(sk);  in raw_destroy()
681 	release_sock(sk);  in raw_destroy()
685 static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)  in raw_bind()  argument
687 	struct inet_sock *inet = inet_sk(sk);  in raw_bind()
692 	if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))  in raw_bind()
694 	chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);  in raw_bind()
702 	sk_dst_reset(sk);  in raw_bind()
712 static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,  in raw_recvmsg()  argument
715 	struct inet_sock *inet = inet_sk(sk);  in raw_recvmsg()
725 		err = ip_recv_error(sk, msg, len, addr_len);  in raw_recvmsg()
729 	skb = skb_recv_datagram(sk, flags, noblock, &err);  in raw_recvmsg()
743 	sock_recv_ts_and_drops(msg, sk, skb);  in raw_recvmsg()
758 	skb_free_datagram(sk, skb);  in raw_recvmsg()
765 static int raw_init(struct sock *sk)  in raw_init()  argument
767 	struct raw_sock *rp = raw_sk(sk);  in raw_init()
769 	if (inet_sk(sk)->inet_num == IPPROTO_ICMP)  in raw_init()
774 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)  in raw_seticmpfilter()  argument
778 	if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))  in raw_seticmpfilter()
783 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)  in raw_geticmpfilter()  argument
796 	    copy_to_user(optval, &raw_sk(sk)->filter, len))  in raw_geticmpfilter()
802 static int do_raw_setsockopt(struct sock *sk, int level, int optname,  in do_raw_setsockopt()  argument
806 		if (inet_sk(sk)->inet_num != IPPROTO_ICMP)  in do_raw_setsockopt()
809 			return raw_seticmpfilter(sk, optval, optlen);  in do_raw_setsockopt()
814 static int raw_setsockopt(struct sock *sk, int level, int optname,  in raw_setsockopt()  argument
818 		return ip_setsockopt(sk, level, optname, optval, optlen);  in raw_setsockopt()
819 	return do_raw_setsockopt(sk, level, optname, optval, optlen);  in raw_setsockopt()
823 static int compat_raw_setsockopt(struct sock *sk, int level, int optname,  in compat_raw_setsockopt()  argument
827 		return compat_ip_setsockopt(sk, level, optname, optval, optlen);  in compat_raw_setsockopt()
828 	return do_raw_setsockopt(sk, level, optname, optval, optlen);  in compat_raw_setsockopt()
832 static int do_raw_getsockopt(struct sock *sk, int level, int optname,  in do_raw_getsockopt()  argument
836 		if (inet_sk(sk)->inet_num != IPPROTO_ICMP)  in do_raw_getsockopt()
839 			return raw_geticmpfilter(sk, optval, optlen);  in do_raw_getsockopt()
844 static int raw_getsockopt(struct sock *sk, int level, int optname,  in raw_getsockopt()  argument
848 		return ip_getsockopt(sk, level, optname, optval, optlen);  in raw_getsockopt()
849 	return do_raw_getsockopt(sk, level, optname, optval, optlen);  in raw_getsockopt()
853 static int compat_raw_getsockopt(struct sock *sk, int level, int optname,  in compat_raw_getsockopt()  argument
857 		return compat_ip_getsockopt(sk, level, optname, optval, optlen);  in compat_raw_getsockopt()
858 	return do_raw_getsockopt(sk, level, optname, optval, optlen);  in compat_raw_getsockopt()
862 static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)  in raw_ioctl()  argument
866 		int amount = sk_wmem_alloc_get(sk);  in raw_ioctl()
874 		spin_lock_bh(&sk->sk_receive_queue.lock);  in raw_ioctl()
875 		skb = skb_peek(&sk->sk_receive_queue);  in raw_ioctl()
878 		spin_unlock_bh(&sk->sk_receive_queue.lock);  in raw_ioctl()
884 		return ipmr_ioctl(sk, cmd, (void __user *)arg);  in raw_ioctl()
892 static int compat_raw_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)  in compat_raw_ioctl()  argument
900 		return ipmr_compat_ioctl(sk, cmd, compat_ptr(arg));  in compat_raw_ioctl()
938 	struct sock *sk;  in raw_get_first()  local
943 		sk_for_each(sk, &state->h->ht[state->bucket])  in raw_get_first()
944 			if (sock_net(sk) == seq_file_net(seq))  in raw_get_first()
947 	sk = NULL;  in raw_get_first()
949 	return sk;  in raw_get_first()
952 static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)  in raw_get_next()  argument
957 		sk = sk_next(sk);  in raw_get_next()
960 	} while (sk && sock_net(sk) != seq_file_net(seq));  in raw_get_next()
962 	if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {  in raw_get_next()
963 		sk = sk_head(&state->h->ht[state->bucket]);  in raw_get_next()
966 	return sk;  in raw_get_next()
971 	struct sock *sk = raw_get_first(seq);  in raw_get_idx()  local
973 	if (sk)  in raw_get_idx()
974 		while (pos && (sk = raw_get_next(seq, sk)) != NULL)  in raw_get_idx()
976 	return pos ? NULL : sk;  in raw_get_idx()
990 	struct sock *sk;  in raw_seq_next()  local
993 		sk = raw_get_first(seq);  in raw_seq_next()
995 		sk = raw_get_next(seq, v);  in raw_seq_next()
997 	return sk;  in raw_seq_next()