diff options
Diffstat (limited to 'include/net/protocol.h')
| -rw-r--r-- | include/net/protocol.h | 56 |
1 files changed, 30 insertions, 26 deletions
diff --git a/include/net/protocol.h b/include/net/protocol.h index 047c0476c0a0..b2499f88f8f8 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket @@ -9,11 +10,6 @@ * * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Changes: * Alan Cox : Added a name field and a frag handler * field for later. @@ -39,24 +35,32 @@ /* This is used to register protocols. */ struct net_protocol { - void (*early_demux)(struct sk_buff *skb); int (*handler)(struct sk_buff *skb); - void (*err_handler)(struct sk_buff *skb, u32 info); + + /* This returns an error if we weren't able to handle the error. */ + int (*err_handler)(struct sk_buff *skb, u32 info); + unsigned int no_policy:1, - netns_ok:1; + /* does the protocol do more stringent + * icmp tag validation than simple + * socket lookup? + */ + icmp_strict_tag_validation:1; + u32 secret; }; #if IS_ENABLED(CONFIG_IPV6) struct inet6_protocol { - void (*early_demux)(struct sk_buff *skb); - int (*handler)(struct sk_buff *skb); - void (*err_handler)(struct sk_buff *skb, + /* This returns an error if we weren't able to handle the error. */ + int (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt, u8 type, u8 code, int offset, __be32 info); + unsigned int flags; /* INET6_PROTO_xxx */ + u32 secret; }; #define INET6_PROTO_NOPOLICY 0x1 @@ -66,6 +70,7 @@ struct inet6_protocol { struct net_offload { struct offload_callbacks callbacks; unsigned int flags; /* Flags used by IPv6 for now */ + u32 secret; }; /* This should be set for any extension header which is compatible with GSO. */ #define INET6_PROTO_GSO_EXTHDR 0x1 @@ -81,35 +86,34 @@ struct inet_protosw { struct proto *prot; const struct proto_ops *ops; - char no_check; /* checksum on rcv/xmit/none? */ unsigned char flags; /* See INET_PROTOSW_* below. */ }; #define INET_PROTOSW_REUSE 0x01 /* Are ports automatically reusable? */ #define INET_PROTOSW_PERMANENT 0x02 /* Permanent protocols are unremovable. */ #define INET_PROTOSW_ICSK 0x04 /* Is this an inet_connection_sock? */ -extern const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS]; +extern struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS]; extern const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS]; extern const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS]; #if IS_ENABLED(CONFIG_IPV6) -extern const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS]; +extern struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS]; #endif -extern int inet_add_protocol(const struct net_protocol *prot, unsigned char num); -extern int inet_del_protocol(const struct net_protocol *prot, unsigned char num); -extern int inet_add_offload(const struct net_offload *prot, unsigned char num); -extern int inet_del_offload(const struct net_offload *prot, unsigned char num); -extern void inet_register_protosw(struct inet_protosw *p); -extern void inet_unregister_protosw(struct inet_protosw *p); +int inet_add_protocol(const struct net_protocol *prot, unsigned char num); +int inet_del_protocol(const struct net_protocol *prot, unsigned char num); +int inet_add_offload(const struct net_offload *prot, unsigned char num); +int inet_del_offload(const struct net_offload *prot, unsigned char num); +void inet_register_protosw(struct inet_protosw *p); +void inet_unregister_protosw(struct inet_protosw *p); #if IS_ENABLED(CONFIG_IPV6) -extern int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char num); -extern int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char num); -extern int inet6_register_protosw(struct inet_protosw *p); -extern void inet6_unregister_protosw(struct inet_protosw *p); +int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char num); +int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char num); +int inet6_register_protosw(struct inet_protosw *p); +void inet6_unregister_protosw(struct inet_protosw *p); #endif -extern int inet6_add_offload(const struct net_offload *prot, unsigned char num); -extern int inet6_del_offload(const struct net_offload *prot, unsigned char num); +int inet6_add_offload(const struct net_offload *prot, unsigned char num); +int inet6_del_offload(const struct net_offload *prot, unsigned char num); #endif /* _PROTOCOL_H */ |