diff options
Diffstat (limited to 'net/ipv6/tcp_ao.c')
| -rw-r--r-- | net/ipv6/tcp_ao.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/ipv6/tcp_ao.c b/net/ipv6/tcp_ao.c index 9ab594fadbd9..d08735b6f3c5 100644 --- a/net/ipv6/tcp_ao.c +++ b/net/ipv6/tcp_ao.c @@ -7,6 +7,7 @@ * Francesco Ruggeri <fruggeri@arista.com> * Salam Noureddine <noureddine@arista.com> */ +#include <crypto/hash.h> #include <linux/tcp.h> #include <net/tcp.h> @@ -79,6 +80,33 @@ struct tcp_ao_key *tcp_v6_ao_lookup(const struct sock *sk, return tcp_v6_ao_do_lookup(sk, addr, sndid, rcvid); } +int tcp_v6_ao_hash_pseudoheader(struct tcp_sigpool *hp, + const struct in6_addr *daddr, + const struct in6_addr *saddr, int nbytes) +{ + struct tcp6_pseudohdr *bp; + struct scatterlist sg; + + bp = hp->scratch; + /* 1. TCP pseudo-header (RFC2460) */ + bp->saddr = *saddr; + bp->daddr = *daddr; + bp->len = cpu_to_be32(nbytes); + bp->protocol = cpu_to_be32(IPPROTO_TCP); + + sg_init_one(&sg, bp, sizeof(*bp)); + ahash_request_set_crypt(hp->req, &sg, NULL, sizeof(*bp)); + return crypto_ahash_update(hp->req); +} + +int tcp_v6_ao_hash_skb(char *ao_hash, struct tcp_ao_key *key, + const struct sock *sk, const struct sk_buff *skb, + const u8 *tkey, int hash_offset, u32 sne) +{ + return tcp_ao_hash_skb(AF_INET6, ao_hash, key, sk, skb, tkey, + hash_offset, sne); +} + int tcp_v6_parse_ao(struct sock *sk, int cmd, sockptr_t optval, int optlen) { |