1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * INET An implementation of the TCP/I 3 * INET An implementation of the TCP/IP protocol suite for the LINUX
4 * operating system. INET is imp 4 * operating system. INET is implemented using the BSD Socket
5 * interface as the means of comm 5 * interface as the means of communication with the user level.
6 * 6 *
7 * Definitions for the RAW-IP mod 7 * Definitions for the RAW-IP module.
8 * 8 *
9 * Version: @(#)raw.h 1.0.2 05/07/ 9 * Version: @(#)raw.h 1.0.2 05/07/93
10 * 10 *
11 * Author: Fred N. van Kempen, <waltje@uW 11 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 */ 12 */
13 #ifndef _RAW_H 13 #ifndef _RAW_H
14 #define _RAW_H 14 #define _RAW_H
15 15
16 #include <net/inet_sock.h> 16 #include <net/inet_sock.h>
17 #include <net/protocol.h> 17 #include <net/protocol.h>
18 #include <net/netns/hash.h> <<
19 #include <linux/hash.h> <<
20 #include <linux/icmp.h> 18 #include <linux/icmp.h>
21 19
22 extern struct proto raw_prot; 20 extern struct proto raw_prot;
23 21
24 extern struct raw_hashinfo raw_v4_hashinfo; 22 extern struct raw_hashinfo raw_v4_hashinfo;
25 bool raw_v4_match(struct net *net, const struc !! 23 bool raw_v4_match(struct net *net, struct sock *sk, unsigned short num,
26 __be32 raddr, __be32 laddr, 24 __be32 raddr, __be32 laddr, int dif, int sdif);
27 25
28 int raw_abort(struct sock *sk, int err); 26 int raw_abort(struct sock *sk, int err);
29 void raw_icmp_error(struct sk_buff *, int, u32 27 void raw_icmp_error(struct sk_buff *, int, u32);
30 int raw_local_deliver(struct sk_buff *, int); 28 int raw_local_deliver(struct sk_buff *, int);
31 29
32 int raw_rcv(struct sock *, struct sk_buff *); 30 int raw_rcv(struct sock *, struct sk_buff *);
33 31
34 #define RAW_HTABLE_LOG 8 !! 32 #define RAW_HTABLE_SIZE MAX_INET_PROTOS
35 #define RAW_HTABLE_SIZE (1U << RAW_HTABLE_LOG) <<
36 33
37 struct raw_hashinfo { 34 struct raw_hashinfo {
38 spinlock_t lock; !! 35 rwlock_t lock;
39 !! 36 struct hlist_nulls_head ht[RAW_HTABLE_SIZE];
40 struct hlist_head ht[RAW_HTABLE_SIZE] <<
41 }; 37 };
42 38
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 39 static inline void raw_hashinfo_init(struct raw_hashinfo *hashinfo)
49 { 40 {
50 int i; 41 int i;
51 42
52 spin_lock_init(&hashinfo->lock); !! 43 rwlock_init(&hashinfo->lock);
53 for (i = 0; i < RAW_HTABLE_SIZE; i++) 44 for (i = 0; i < RAW_HTABLE_SIZE; i++)
54 INIT_HLIST_HEAD(&hashinfo->ht[ !! 45 INIT_HLIST_NULLS_HEAD(&hashinfo->ht[i], i);
55 } 46 }
56 47
57 #ifdef CONFIG_PROC_FS 48 #ifdef CONFIG_PROC_FS
58 int raw_proc_init(void); 49 int raw_proc_init(void);
59 void raw_proc_exit(void); 50 void raw_proc_exit(void);
60 51
61 struct raw_iter_state { 52 struct raw_iter_state {
62 struct seq_net_private p; 53 struct seq_net_private p;
63 int bucket; 54 int bucket;
64 }; 55 };
65 56
66 static inline struct raw_iter_state *raw_seq_p 57 static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
67 { 58 {
68 return seq->private; 59 return seq->private;
69 } 60 }
70 void *raw_seq_start(struct seq_file *seq, loff 61 void *raw_seq_start(struct seq_file *seq, loff_t *pos);
71 void *raw_seq_next(struct seq_file *seq, void 62 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
72 void raw_seq_stop(struct seq_file *seq, void * 63 void raw_seq_stop(struct seq_file *seq, void *v);
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); 68 void raw_init(void);
78 69
79 struct raw_sock { 70 struct raw_sock {
80 /* inet_sock has to be the first membe 71 /* inet_sock has to be the first member */
81 struct inet_sock inet; 72 struct inet_sock inet;
82 struct icmp_filter filter; 73 struct icmp_filter filter;
83 u32 ipmr_table; 74 u32 ipmr_table;
84 }; 75 };
85 76
86 #define raw_sk(ptr) container_of_const(ptr, st !! 77 static inline struct raw_sock *raw_sk(const struct sock *sk)
>> 78 {
>> 79 return (struct raw_sock *)sk;
>> 80 }
87 81
88 static inline bool raw_sk_bound_dev_eq(struct 82 static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
89 int dif 83 int dif, int sdif)
90 { 84 {
91 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) 85 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
92 return inet_bound_dev_eq(READ_ONCE(net 86 return inet_bound_dev_eq(READ_ONCE(net->ipv4.sysctl_raw_l3mdev_accept),
93 bound_dev_if, 87 bound_dev_if, dif, sdif);
94 #else 88 #else
95 return inet_bound_dev_eq(true, bound_d 89 return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
96 #endif 90 #endif
97 } 91 }
98 92
99 #endif /* _RAW_H */ 93 #endif /* _RAW_H */
100 94
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