| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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(READ_ONCE(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 */ |