Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * INET An implementation of the TCP/IP protocol suite for the LINUX
4 * operating system. INET is implemented using the BSD Socket
5 * interface as the means of communication with the user level.
6 *
7 * Definitions for the RAW-IP module.
8 *
9 * Version: @(#)raw.h 1.0.2 05/07/93
10 *
11 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 */
13#ifndef _RAW_H
14#define _RAW_H
15
16#include <net/inet_sock.h>
17#include <net/protocol.h>
18#include <linux/icmp.h>
19
20extern struct proto raw_prot;
21
22extern struct raw_hashinfo raw_v4_hashinfo;
23bool raw_v4_match(struct net *net, struct sock *sk, unsigned short num,
24 __be32 raddr, __be32 laddr, int dif, int sdif);
25
26int raw_abort(struct sock *sk, int err);
27void raw_icmp_error(struct sk_buff *, int, u32);
28int raw_local_deliver(struct sk_buff *, int);
29
30int raw_rcv(struct sock *, struct sk_buff *);
31
32#define RAW_HTABLE_SIZE MAX_INET_PROTOS
33
34struct raw_hashinfo {
35 spinlock_t lock;
36 struct hlist_nulls_head ht[RAW_HTABLE_SIZE];
37};
38
39static inline void raw_hashinfo_init(struct raw_hashinfo *hashinfo)
40{
41 int i;
42
43 spin_lock_init(&hashinfo->lock);
44 for (i = 0; i < RAW_HTABLE_SIZE; i++)
45 INIT_HLIST_NULLS_HEAD(&hashinfo->ht[i], i);
46}
47
48#ifdef CONFIG_PROC_FS
49int raw_proc_init(void);
50void raw_proc_exit(void);
51
52struct raw_iter_state {
53 struct seq_net_private p;
54 int bucket;
55};
56
57static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
58{
59 return seq->private;
60}
61void *raw_seq_start(struct seq_file *seq, loff_t *pos);
62void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
63void raw_seq_stop(struct seq_file *seq, void *v);
64#endif
65
66int raw_hash_sk(struct sock *sk);
67void raw_unhash_sk(struct sock *sk);
68void raw_init(void);
69
70struct raw_sock {
71 /* inet_sock has to be the first member */
72 struct inet_sock inet;
73 struct icmp_filter filter;
74 u32 ipmr_table;
75};
76
77static inline struct raw_sock *raw_sk(const struct sock *sk)
78{
79 return (struct raw_sock *)sk;
80}
81
82static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
83 int dif, int sdif)
84{
85#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
86 return inet_bound_dev_eq(READ_ONCE(net->ipv4.sysctl_raw_l3mdev_accept),
87 bound_dev_if, dif, sdif);
88#else
89 return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
90#endif
91}
92
93#endif /* _RAW_H */