1 /* 2 * INET An implementation of the TCP/IP protocol suite for the LINUX 3 * operating system. INET is implemented using the BSD Socket 4 * interface as the means of communication with the user level. 5 * 6 * Definitions for the RAW-IP module. 7 * 8 * Version: @(#)raw.h 1.0.2 05/07/93 9 * 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. 16 */ 17 #ifndef _RAW_H 18 #define _RAW_H 19 20 #include <net/inet_sock.h> 21 #include <net/protocol.h> 22 #include <linux/icmp.h> 23 24 extern struct proto raw_prot; 25 26 extern struct raw_hashinfo raw_v4_hashinfo; 27 struct sock *__raw_v4_lookup(struct net *net, struct sock *sk, 28 unsigned short num, __be32 raddr, 29 __be32 laddr, int dif, int sdif); 30 31 int raw_abort(struct sock *sk, int err); 32 void raw_icmp_error(struct sk_buff *, int, u32); 33 int raw_local_deliver(struct sk_buff *, int); 34 35 int raw_rcv(struct sock *, struct sk_buff *); 36 37 #define RAW_HTABLE_SIZE MAX_INET_PROTOS 38 39 struct raw_hashinfo { 40 rwlock_t lock; 41 struct hlist_head ht[RAW_HTABLE_SIZE]; 42 }; 43 44 #ifdef CONFIG_PROC_FS 45 int raw_proc_init(void); 46 void raw_proc_exit(void); 47 48 struct raw_iter_state { 49 struct seq_net_private p; 50 int bucket; 51 }; 52 53 static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq) 54 { 55 return seq->private; 56 } 57 void *raw_seq_start(struct seq_file *seq, loff_t *pos); 58 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos); 59 void raw_seq_stop(struct seq_file *seq, void *v); 60 #endif 61 62 int raw_hash_sk(struct sock *sk); 63 void raw_unhash_sk(struct sock *sk); 64 void raw_init(void); 65 66 struct raw_sock { 67 /* inet_sock has to be the first member */ 68 struct inet_sock inet; 69 struct icmp_filter filter; 70 u32 ipmr_table; 71 }; 72 73 static inline struct raw_sock *raw_sk(const struct sock *sk) 74 { 75 return (struct raw_sock *)sk; 76 } 77 78 static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if, 79 int dif, int sdif) 80 { 81 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) 82 return inet_bound_dev_eq(!!net->ipv4.sysctl_raw_l3mdev_accept, 83 bound_dev_if, dif, sdif); 84 #else 85 return inet_bound_dev_eq(true, bound_dev_if, dif, sdif); 86 #endif 87 } 88 89 #endif /* _RAW_H */ 90