diff options
Diffstat (limited to 'include/net/ip.h')
| -rw-r--r-- | include/net/ip.h | 43 |
1 files changed, 35 insertions, 8 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index d14af7edd197..0750a186ea63 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -31,7 +31,7 @@ #include <net/route.h> #include <net/snmp.h> #include <net/flow.h> -#include <net/flow_keys.h> +#include <net/flow_dissector.h> struct sock; @@ -45,6 +45,7 @@ struct inet_skb_parm { #define IPSKB_FRAG_COMPLETE BIT(3) #define IPSKB_REROUTED BIT(4) #define IPSKB_DOREDIRECT BIT(5) +#define IPSKB_FRAG_PMTU BIT(6) u16 frag_max_size; }; @@ -108,9 +109,8 @@ int ip_local_deliver(struct sk_buff *skb); int ip_mr_input(struct sk_buff *skb); int ip_output(struct sock *sk, struct sk_buff *skb); int ip_mc_output(struct sock *sk, struct sk_buff *skb); -int ip_fragment(struct sock *sk, struct sk_buff *skb, - int (*output)(struct sock *, struct sk_buff *)); -int ip_do_nat(struct sk_buff *skb); +int ip_do_fragment(struct sock *sk, struct sk_buff *skb, + int (*output)(struct sock *, struct sk_buff *)); void ip_send_check(struct iphdr *ip); int __ip_local_out(struct sk_buff *skb); int ip_local_out_sk(struct sock *sk, struct sk_buff *skb); @@ -355,15 +355,32 @@ static inline __wsum inet_compute_pseudo(struct sk_buff *skb, int proto) skb->len, proto, 0); } +/* copy IPv4 saddr & daddr to flow_keys, possibly using 64bit load/store + * Equivalent to : flow->v4addrs.src = iph->saddr; + * flow->v4addrs.dst = iph->daddr; + */ +static inline void iph_to_flow_copy_v4addrs(struct flow_keys *flow, + const struct iphdr *iph) +{ + BUILD_BUG_ON(offsetof(typeof(flow->addrs), v4addrs.dst) != + offsetof(typeof(flow->addrs), v4addrs.src) + + sizeof(flow->addrs.v4addrs.src)); + memcpy(&flow->addrs.v4addrs, &iph->saddr, sizeof(flow->addrs.v4addrs)); + flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; +} + static inline void inet_set_txhash(struct sock *sk) { struct inet_sock *inet = inet_sk(sk); struct flow_keys keys; - keys.src = inet->inet_saddr; - keys.dst = inet->inet_daddr; - keys.port16[0] = inet->inet_sport; - keys.port16[1] = inet->inet_dport; + memset(&keys, 0, sizeof(keys)); + + keys.addrs.v4addrs.src = inet->inet_saddr; + keys.addrs.v4addrs.dst = inet->inet_daddr; + keys.control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; + keys.ports.src = inet->inet_sport; + keys.ports.dst = inet->inet_dport; sk->sk_txhash = flow_hash_from_keys(&keys); } @@ -478,6 +495,16 @@ enum ip_defrag_users { IP_DEFRAG_MACVLAN, }; +/* Return true if the value of 'user' is between 'lower_bond' + * and 'upper_bond' inclusively. + */ +static inline bool ip_defrag_user_in_between(u32 user, + enum ip_defrag_users lower_bond, + enum ip_defrag_users upper_bond) +{ + return user >= lower_bond && user <= upper_bond; +} + int ip_defrag(struct sk_buff *skb, u32 user); #ifdef CONFIG_INET struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user); |