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> !! 20
17 #include <net/protocol.h> 21 #include <net/protocol.h>
18 #include <net/netns/hash.h> <<
19 #include <linux/hash.h> <<
20 #include <linux/icmp.h> 22 #include <linux/icmp.h>
21 23
22 extern struct proto raw_prot; 24 extern struct proto raw_prot;
23 25
24 extern struct raw_hashinfo raw_v4_hashinfo; 26 extern struct raw_hashinfo raw_v4_hashinfo;
25 bool raw_v4_match(struct net *net, const struc !! 27 struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
26 __be32 raddr, __be32 laddr, !! 28 unsigned short num, __be32 raddr,
>> 29 __be32 laddr, int dif, int sdif);
27 30
28 int raw_abort(struct sock *sk, int err); 31 int raw_abort(struct sock *sk, int err);
29 void raw_icmp_error(struct sk_buff *, int, u32 32 void raw_icmp_error(struct sk_buff *, int, u32);
30 int raw_local_deliver(struct sk_buff *, int); 33 int raw_local_deliver(struct sk_buff *, int);
31 34
32 int raw_rcv(struct sock *, struct sk_buff *); 35 int raw_rcv(struct sock *, struct sk_buff *);
33 36
34 #define RAW_HTABLE_LOG 8 !! 37 #define RAW_HTABLE_SIZE MAX_INET_PROTOS
35 #define RAW_HTABLE_SIZE (1U << RAW_HTABLE_LOG) <<
36 38
37 struct raw_hashinfo { 39 struct raw_hashinfo {
38 spinlock_t lock; !! 40 rwlock_t lock;
39 !! 41 struct hlist_head ht[RAW_HTABLE_SIZE];
40 struct hlist_head ht[RAW_HTABLE_SIZE] <<
41 }; 42 };
42 43
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 44 #ifdef CONFIG_PROC_FS
58 int raw_proc_init(void); 45 int raw_proc_init(void);
59 void raw_proc_exit(void); 46 void raw_proc_exit(void);
60 47
61 struct raw_iter_state { 48 struct raw_iter_state {
62 struct seq_net_private p; 49 struct seq_net_private p;
63 int bucket; 50 int bucket;
>> 51 struct raw_hashinfo *h;
64 }; 52 };
65 53
66 static inline struct raw_iter_state *raw_seq_p 54 static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
67 { 55 {
68 return seq->private; 56 return seq->private;
69 } 57 }
70 void *raw_seq_start(struct seq_file *seq, loff 58 void *raw_seq_start(struct seq_file *seq, loff_t *pos);
71 void *raw_seq_next(struct seq_file *seq, void 59 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
72 void raw_seq_stop(struct seq_file *seq, void * 60 void raw_seq_stop(struct seq_file *seq, void *v);
>> 61 int raw_seq_open(struct inode *ino, struct file *file,
>> 62 struct raw_hashinfo *h, const struct seq_operations *ops);
>> 63
73 #endif 64 #endif
74 65
75 int raw_hash_sk(struct sock *sk); 66 int raw_hash_sk(struct sock *sk);
76 void raw_unhash_sk(struct sock *sk); 67 void raw_unhash_sk(struct sock *sk);
77 void raw_init(void); <<
78 68
79 struct raw_sock { 69 struct raw_sock {
80 /* inet_sock has to be the first membe 70 /* inet_sock has to be the first member */
81 struct inet_sock inet; 71 struct inet_sock inet;
82 struct icmp_filter filter; 72 struct icmp_filter filter;
83 u32 ipmr_table; 73 u32 ipmr_table;
84 }; 74 };
85 75
86 #define raw_sk(ptr) container_of_const(ptr, st !! 76 static inline struct raw_sock *raw_sk(const struct sock *sk)
87 <<
88 static inline bool raw_sk_bound_dev_eq(struct <<
89 int dif <<
90 { 77 {
91 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) !! 78 return (struct raw_sock *)sk;
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 } 79 }
98 80
99 #endif /* _RAW_H */ 81 #endif /* _RAW_H */
100 82
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