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