1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 /* 1 /*
3 * INET An implementation of the TCP/I 2 * INET An implementation of the TCP/IP protocol suite for the LINUX
4 * operating system. INET is imp 3 * operating system. INET is implemented using the BSD Socket
5 * interface as the means of comm 4 * interface as the means of communication with the user level.
6 * 5 *
7 * Definitions for the RAW-IP mod 6 * Definitions for the RAW-IP module.
8 * 7 *
9 * Version: @(#)raw.h 1.0.2 05/07/ 8 * Version: @(#)raw.h 1.0.2 05/07/93
10 * 9 *
11 * Author: Fred N. van Kempen, <waltje@uW 10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
>> 11 *
>> 12 * This program is free software; you can redistribute it and/or
>> 13 * modify it under the terms of the GNU General Public License
>> 14 * as published by the Free Software Foundation; either version
>> 15 * 2 of the License, or (at your option) any later version.
12 */ 16 */
13 #ifndef _RAW_H 17 #ifndef _RAW_H
14 #define _RAW_H 18 #define _RAW_H
15 19
16 #include <net/inet_sock.h> <<
17 #include <net/protocol.h> <<
18 #include <net/netns/hash.h> <<
19 #include <linux/hash.h> <<
20 #include <linux/icmp.h> <<
21 20
22 extern struct proto raw_prot; 21 extern struct proto raw_prot;
23 22
24 extern struct raw_hashinfo raw_v4_hashinfo; !! 23
25 bool raw_v4_match(struct net *net, const struc !! 24 extern void raw_err(struct sock *, struct sk_buff *, u32 info);
26 __be32 raddr, __be32 laddr, !! 25 extern int raw_rcv(struct sock *, struct sk_buff *);
27 !! 26
28 int raw_abort(struct sock *sk, int err); !! 27 /* Note: v4 ICMP wants to get at this stuff, if you change the
29 void raw_icmp_error(struct sk_buff *, int, u32 !! 28 * hashing mechanism, make sure you update icmp.c as well.
30 int raw_local_deliver(struct sk_buff *, int); !! 29 */
31 !! 30 #define RAWV4_HTABLE_SIZE MAX_INET_PROTOS
32 int raw_rcv(struct sock *, struct sk_buff *); !! 31 extern struct hlist_head raw_v4_htable[RAWV4_HTABLE_SIZE];
33 !! 32
34 #define RAW_HTABLE_LOG 8 !! 33 extern rwlock_t raw_v4_lock;
35 #define RAW_HTABLE_SIZE (1U << RAW_HTABLE_LOG) !! 34
36 !! 35
37 struct raw_hashinfo { !! 36 extern struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
38 spinlock_t lock; !! 37 unsigned long raddr, unsigned long laddr,
39 !! 38 int dif);
40 struct hlist_head ht[RAW_HTABLE_SIZE] !! 39
41 }; !! 40 extern void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash);
42 <<
43 static inline u32 raw_hashfunc(const struct ne <<
44 { <<
45 return hash_32(net_hash_mix(net) ^ pro <<
46 } <<
47 <<
48 static inline void raw_hashinfo_init(struct ra <<
49 { <<
50 int i; <<
51 <<
52 spin_lock_init(&hashinfo->lock); <<
53 for (i = 0; i < RAW_HTABLE_SIZE; i++) <<
54 INIT_HLIST_HEAD(&hashinfo->ht[ <<
55 } <<
56 <<
57 #ifdef CONFIG_PROC_FS <<
58 int raw_proc_init(void); <<
59 void raw_proc_exit(void); <<
60 <<
61 struct raw_iter_state { <<
62 struct seq_net_private p; <<
63 int bucket; <<
64 }; <<
65 <<
66 static inline struct raw_iter_state *raw_seq_p <<
67 { <<
68 return seq->private; <<
69 } <<
70 void *raw_seq_start(struct seq_file *seq, loff <<
71 void *raw_seq_next(struct seq_file *seq, void <<
72 void raw_seq_stop(struct seq_file *seq, void * <<
73 #endif <<
74 <<
75 int raw_hash_sk(struct sock *sk); <<
76 void raw_unhash_sk(struct sock *sk); <<
77 void raw_init(void); <<
78 <<
79 struct raw_sock { <<
80 /* inet_sock has to be the first membe <<
81 struct inet_sock inet; <<
82 struct icmp_filter filter; <<
83 u32 ipmr_table; <<
84 }; <<
85 <<
86 #define raw_sk(ptr) container_of_const(ptr, st <<
87 <<
88 static inline bool raw_sk_bound_dev_eq(struct <<
89 int dif <<
90 { <<
91 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) <<
92 return inet_bound_dev_eq(READ_ONCE(net <<
93 bound_dev_if, <<
94 #else <<
95 return inet_bound_dev_eq(true, bound_d <<
96 #endif <<
97 } <<
98 41
99 #endif /* _RAW_H */ 42 #endif /* _RAW_H */
100 43
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