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TOMOYO Linux Cross Reference
Linux/include/net/raw.h

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  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 
 20 extern struct proto raw_prot;
 21 
 22 extern struct raw_hashinfo raw_v4_hashinfo;
 23 struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
 24                              unsigned short num, __be32 raddr,
 25                              __be32 laddr, int dif, int sdif);
 26 
 27 int raw_abort(struct sock *sk, int err);
 28 void raw_icmp_error(struct sk_buff *, int, u32);
 29 int raw_local_deliver(struct sk_buff *, int);
 30 
 31 int raw_rcv(struct sock *, struct sk_buff *);
 32 
 33 #define RAW_HTABLE_SIZE MAX_INET_PROTOS
 34 
 35 struct raw_hashinfo {
 36         rwlock_t lock;
 37         struct hlist_head ht[RAW_HTABLE_SIZE];
 38 };
 39 
 40 #ifdef CONFIG_PROC_FS
 41 int raw_proc_init(void);
 42 void raw_proc_exit(void);
 43 
 44 struct raw_iter_state {
 45         struct seq_net_private p;
 46         int bucket;
 47 };
 48 
 49 static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
 50 {
 51         return seq->private;
 52 }
 53 void *raw_seq_start(struct seq_file *seq, loff_t *pos);
 54 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
 55 void raw_seq_stop(struct seq_file *seq, void *v);
 56 #endif
 57 
 58 int raw_hash_sk(struct sock *sk);
 59 void raw_unhash_sk(struct sock *sk);
 60 void raw_init(void);
 61 
 62 struct raw_sock {
 63         /* inet_sock has to be the first member */
 64         struct inet_sock   inet;
 65         struct icmp_filter filter;
 66         u32                ipmr_table;
 67 };
 68 
 69 static inline struct raw_sock *raw_sk(const struct sock *sk)
 70 {
 71         return (struct raw_sock *)sk;
 72 }
 73 
 74 static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
 75                                        int dif, int sdif)
 76 {
 77 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
 78         return inet_bound_dev_eq(!!net->ipv4.sysctl_raw_l3mdev_accept,
 79                                  bound_dev_if, dif, sdif);
 80 #else
 81         return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
 82 #endif
 83 }
 84 
 85 #endif  /* _RAW_H */
 86 

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