diff options
| author | Ivan Delalande <colona@arista.com> | 2017-06-15 18:07:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-19 13:50:55 -0400 |
| commit | 6797318e623da68dfbacd0cb5c246f5ecd2baf6e (patch) | |
| tree | 64cb66cb77576371cd085f8208f86e2be91cb9db /net/ipv6/tcp_ipv6.c | |
| parent | 910603818c6c0558fe9b5e056a3bd5195aaae1a5 (diff) | |
| download | lwn-6797318e623da68dfbacd0cb5c246f5ecd2baf6e.tar.gz lwn-6797318e623da68dfbacd0cb5c246f5ecd2baf6e.zip | |
tcp: md5: add an address prefix for key lookup
This allows the keys used for TCP MD5 signature to be used for whole
range of addresses, specified with a prefix length, instead of only one
address as it currently is.
Signed-off-by: Bob Gilligan <gilligan@arista.com>
Signed-off-by: Eric Mowat <mowat@arista.com>
Signed-off-by: Ivan Delalande <colona@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 6264917fe4c7..261689310408 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -533,9 +533,9 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, char __user *optval, if (!cmd.tcpm_keylen) { if (ipv6_addr_v4mapped(&sin6->sin6_addr)) return tcp_md5_do_del(sk, (union tcp_md5_addr *)&sin6->sin6_addr.s6_addr32[3], - AF_INET); + AF_INET, 32); return tcp_md5_do_del(sk, (union tcp_md5_addr *)&sin6->sin6_addr, - AF_INET6); + AF_INET6, 128); } if (cmd.tcpm_keylen > TCP_MD5SIG_MAXKEYLEN) @@ -543,10 +543,12 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, char __user *optval, if (ipv6_addr_v4mapped(&sin6->sin6_addr)) return tcp_md5_do_add(sk, (union tcp_md5_addr *)&sin6->sin6_addr.s6_addr32[3], - AF_INET, cmd.tcpm_key, cmd.tcpm_keylen, GFP_KERNEL); + AF_INET, 32, cmd.tcpm_key, + cmd.tcpm_keylen, GFP_KERNEL); return tcp_md5_do_add(sk, (union tcp_md5_addr *)&sin6->sin6_addr, - AF_INET6, cmd.tcpm_key, cmd.tcpm_keylen, GFP_KERNEL); + AF_INET6, 128, cmd.tcpm_key, cmd.tcpm_keylen, + GFP_KERNEL); } static int tcp_v6_md5_hash_headers(struct tcp_md5sig_pool *hp, @@ -1186,7 +1188,7 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff * * across. Shucks. */ tcp_md5_do_add(newsk, (union tcp_md5_addr *)&newsk->sk_v6_daddr, - AF_INET6, key->key, key->keylen, + AF_INET6, 128, key->key, key->keylen, sk_gfp_mask(sk, GFP_ATOMIC)); } #endif |