diff options
author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-10-24 06:46:04 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2011-10-24 06:46:04 (GMT) |
commit | 318cf7aaa0a6d20ecf6be33eb771291e5ff2e3b9 (patch) | |
tree | a2a42bbea9a1351d9986690f6df2a90cdbfd1d0c | |
parent | 8f9f4668b37bcc877156dd525a856055735c8d24 (diff) | |
download | linux-fsl-qoriq-318cf7aaa0a6d20ecf6be33eb771291e5ff2e3b9.tar.xz |
tcp: md5: add more const attributes
Now tcp_md5_hash_header() has a const tcphdr argument, we can add more
const attributes to callers.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | include/net/tcp.h | 17 | ||||
-rw-r--r-- | net/ipv4/tcp_ipv4.c | 12 | ||||
-rw-r--r-- | net/ipv6/tcp_ipv6.c | 13 |
3 files changed, 22 insertions, 20 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 910cc29..ed0e814 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1185,8 +1185,9 @@ struct tcp_md5sig_pool { /* - functions */ extern int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, - struct sock *sk, struct request_sock *req, - struct sk_buff *skb); + const struct sock *sk, + const struct request_sock *req, + const struct sk_buff *skb); extern struct tcp_md5sig_key * tcp_v4_md5_lookup(struct sock *sk, struct sock *addr_sk); extern int tcp_v4_md5_do_add(struct sock *sk, __be32 addr, u8 *newkey, @@ -1448,9 +1449,9 @@ struct tcp_sock_af_ops { struct sock *addr_sk); int (*calc_md5_hash) (char *location, struct tcp_md5sig_key *md5, - struct sock *sk, - struct request_sock *req, - struct sk_buff *skb); + const struct sock *sk, + const struct request_sock *req, + const struct sk_buff *skb); int (*md5_add) (struct sock *sk, struct sock *addr_sk, u8 *newkey, @@ -1467,9 +1468,9 @@ struct tcp_request_sock_ops { struct request_sock *req); int (*calc_md5_hash) (char *location, struct tcp_md5sig_key *md5, - struct sock *sk, - struct request_sock *req, - struct sk_buff *skb); + const struct sock *sk, + const struct request_sock *req, + const struct sk_buff *skb); #endif }; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 955c925..1dad7e9 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -92,7 +92,7 @@ EXPORT_SYMBOL(sysctl_tcp_low_latency); static struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, __be32 addr); static int tcp_v4_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key, - __be32 daddr, __be32 saddr, struct tcphdr *th); + __be32 daddr, __be32 saddr, const struct tcphdr *th); #else static inline struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, __be32 addr) @@ -1090,7 +1090,7 @@ static int tcp_v4_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp, } static int tcp_v4_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key, - __be32 daddr, __be32 saddr, struct tcphdr *th) + __be32 daddr, __be32 saddr, const struct tcphdr *th) { struct tcp_md5sig_pool *hp; struct hash_desc *desc; @@ -1122,12 +1122,12 @@ clear_hash_noput: } int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, - struct sock *sk, struct request_sock *req, - struct sk_buff *skb) + const struct sock *sk, const struct request_sock *req, + const struct sk_buff *skb) { struct tcp_md5sig_pool *hp; struct hash_desc *desc; - struct tcphdr *th = tcp_hdr(skb); + const struct tcphdr *th = tcp_hdr(skb); __be32 saddr, daddr; if (sk) { @@ -1172,7 +1172,7 @@ clear_hash_noput: } EXPORT_SYMBOL(tcp_v4_md5_hash_skb); -static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb) +static int tcp_v4_inbound_md5_hash(struct sock *sk, const struct sk_buff *skb) { /* * This gets called for each TCP segment that arrives diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index da2ada8..c8683fc 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -761,7 +761,7 @@ static int tcp_v6_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp, static int tcp_v6_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key, const struct in6_addr *daddr, struct in6_addr *saddr, - struct tcphdr *th) + const struct tcphdr *th) { struct tcp_md5sig_pool *hp; struct hash_desc *desc; @@ -793,13 +793,14 @@ clear_hash_noput: } static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, - struct sock *sk, struct request_sock *req, - struct sk_buff *skb) + const struct sock *sk, + const struct request_sock *req, + const struct sk_buff *skb) { const struct in6_addr *saddr, *daddr; struct tcp_md5sig_pool *hp; struct hash_desc *desc; - struct tcphdr *th = tcp_hdr(skb); + const struct tcphdr *th = tcp_hdr(skb); if (sk) { saddr = &inet6_sk(sk)->saddr; @@ -842,12 +843,12 @@ clear_hash_noput: return 1; } -static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb) +static int tcp_v6_inbound_md5_hash(struct sock *sk, const struct sk_buff *skb) { const __u8 *hash_location = NULL; struct tcp_md5sig_key *hash_expected; const struct ipv6hdr *ip6h = ipv6_hdr(skb); - struct tcphdr *th = tcp_hdr(skb); + const struct tcphdr *th = tcp_hdr(skb); int genhash; u8 newhash[16]; |