diff options
Diffstat (limited to 'include/net/protocol.h')
| -rw-r--r-- | include/net/protocol.h | 78 |
1 files changed, 45 insertions, 33 deletions
diff --git a/include/net/protocol.h b/include/net/protocol.h index dc07495bce4..d6fcc1fcdb5 100644 --- a/include/net/protocol.h +++ b/include/net/protocol.h @@ -25,52 +25,56 @@ #define _PROTOCOL_H #include <linux/in6.h> -#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +#include <linux/skbuff.h> +#if IS_ENABLED(CONFIG_IPV6) #include <linux/ipv6.h> #endif +#include <linux/netdevice.h> -#define MAX_INET_PROTOS 256 /* Must be a power of 2 */ - +/* This is one larger than the largest protocol value that can be + * found in an ipv4 or ipv6 header. Since in both cases the protocol + * value is presented in a __u8, this is defined to be 256. + */ +#define MAX_INET_PROTOS 256 /* 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); - int (*gso_send_check)(struct sk_buff *skb); - struct sk_buff *(*gso_segment)(struct sk_buff *skb, - int features); - struct sk_buff **(*gro_receive)(struct sk_buff **head, - struct sk_buff *skb); - int (*gro_complete)(struct sk_buff *skb); unsigned int no_policy:1, - netns_ok:1; + netns_ok:1, + /* does the protocol do more stringent + * icmp tag validation than simple + * socket lookup? + */ + icmp_strict_tag_validation:1; }; -#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +#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, struct inet6_skb_parm *opt, u8 type, u8 code, int offset, __be32 info); - - int (*gso_send_check)(struct sk_buff *skb); - struct sk_buff *(*gso_segment)(struct sk_buff *skb, - int features); - struct sk_buff **(*gro_receive)(struct sk_buff **head, - struct sk_buff *skb); - int (*gro_complete)(struct sk_buff *skb); - unsigned int flags; /* INET6_PROTO_xxx */ }; #define INET6_PROTO_NOPOLICY 0x1 #define INET6_PROTO_FINAL 0x2 -/* This should be set for any extension header which is compatible with GSO. */ -#define INET6_PROTO_GSO_EXTHDR 0x4 #endif +struct net_offload { + struct offload_callbacks callbacks; + unsigned int flags; /* Flags used by IPv6 for now */ +}; +/* This should be set for any extension header which is compatible with GSO. */ +#define INET6_PROTO_GSO_EXTHDR 0x1 + /* This is used to register socket interfaces for IP protocols. */ struct inet_protosw { struct list_head list; @@ -82,7 +86,6 @@ 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? */ @@ -90,21 +93,30 @@ struct inet_protosw { #define INET_PROTOSW_ICSK 0x04 /* Is this an inet_connection_sock? */ extern const 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 defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +#if IS_ENABLED(CONFIG_IPV6) extern const 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 void inet_register_protosw(struct inet_protosw *p); -extern void inet_unregister_protosw(struct inet_protosw *p); - -#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) -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 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); + +int udp_add_offload(struct udp_offload *prot); +void udp_del_offload(struct udp_offload *prot); + +#if IS_ENABLED(CONFIG_IPV6) +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 +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 */ |