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-rw-r--r--net/ipv6/syncookies.c6
-rw-r--r--net/ipv6/tcp_ipv6.c27
2 files changed, 17 insertions, 16 deletions
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index ac838965ff34..5a0d6648bbbc 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -115,7 +115,7 @@ static __u32 check_tcp_syn_cookie(__u32 cookie, const struct in6_addr *saddr,
& COOKIEMASK;
}
-__u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
+__u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb, __u16 *mssp)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
const struct tcphdr *th = tcp_hdr(skb);
@@ -137,7 +137,7 @@ __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
jiffies / (HZ * 60), mssind);
}
-static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
+static inline int cookie_check(const struct sk_buff *skb, __u32 cookie)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
const struct tcphdr *th = tcp_hdr(skb);
@@ -152,7 +152,7 @@ static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
{
struct tcp_options_received tcp_opt;
- u8 *hash_location;
+ const u8 *hash_location;
struct inet_request_sock *ireq;
struct inet6_request_sock *ireq6;
struct tcp_request_sock *treq;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5357902c7978..da2ada881cfa 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -114,7 +114,7 @@ static __inline__ __sum16 tcp_v6_check(int len,
return csum_ipv6_magic(saddr, daddr, len, IPPROTO_TCP, base);
}
-static __u32 tcp_v6_init_sequence(struct sk_buff *skb)
+static __u32 tcp_v6_init_sequence(const struct sk_buff *skb)
{
return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
ipv6_hdr(skb)->saddr.s6_addr32,
@@ -844,7 +844,7 @@ clear_hash_noput:
static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb)
{
- __u8 *hash_location = NULL;
+ const __u8 *hash_location = NULL;
struct tcp_md5sig_key *hash_expected;
const struct ipv6hdr *ip6h = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
@@ -980,7 +980,8 @@ static int tcp6_gro_complete(struct sk_buff *skb)
static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
u32 ts, struct tcp_md5sig_key *key, int rst)
{
- struct tcphdr *th = tcp_hdr(skb), *t1;
+ const struct tcphdr *th = tcp_hdr(skb);
+ struct tcphdr *t1;
struct sk_buff *buff;
struct flowi6 fl6;
struct net *net = dev_net(skb_dst(skb)->dev);
@@ -1070,7 +1071,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
{
- struct tcphdr *th = tcp_hdr(skb);
+ const struct tcphdr *th = tcp_hdr(skb);
u32 seq = 0, ack_seq = 0;
struct tcp_md5sig_key *key = NULL;
@@ -1160,7 +1161,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{
struct tcp_extend_values tmp_ext;
struct tcp_options_received tmp_opt;
- u8 *hash_location;
+ const u8 *hash_location;
struct request_sock *req;
struct inet6_request_sock *treq;
struct ipv6_pinfo *np = inet6_sk(sk);
@@ -1688,7 +1689,7 @@ ipv6_pktoptions:
static int tcp_v6_rcv(struct sk_buff *skb)
{
- struct tcphdr *th;
+ const struct tcphdr *th;
const struct ipv6hdr *hdr;
struct sock *sk;
int ret;
@@ -1856,8 +1857,8 @@ static struct inet_peer *tcp_v6_get_peer(struct sock *sk, bool *release_it)
static void *tcp_v6_tw_get_peer(struct sock *sk)
{
- struct inet6_timewait_sock *tw6 = inet6_twsk(sk);
- struct inet_timewait_sock *tw = inet_twsk(sk);
+ const struct inet6_timewait_sock *tw6 = inet6_twsk(sk);
+ const struct inet_timewait_sock *tw = inet_twsk(sk);
if (tw->tw_family == AF_INET)
return tcp_v4_tw_get_peer(sk);
@@ -2012,7 +2013,7 @@ static void tcp_v6_destroy_sock(struct sock *sk)
#ifdef CONFIG_PROC_FS
/* Proc filesystem TCPv6 sock list dumping. */
static void get_openreq6(struct seq_file *seq,
- struct sock *sk, struct request_sock *req, int i, int uid)
+ const struct sock *sk, struct request_sock *req, int i, int uid)
{
int ttd = req->expires - jiffies;
const struct in6_addr *src = &inet6_rsk(req)->loc_addr;
@@ -2048,10 +2049,10 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
__u16 destp, srcp;
int timer_active;
unsigned long timer_expires;
- struct inet_sock *inet = inet_sk(sp);
- struct tcp_sock *tp = tcp_sk(sp);
+ const struct inet_sock *inet = inet_sk(sp);
+ const struct tcp_sock *tp = tcp_sk(sp);
const struct inet_connection_sock *icsk = inet_csk(sp);
- struct ipv6_pinfo *np = inet6_sk(sp);
+ const struct ipv6_pinfo *np = inet6_sk(sp);
dest = &np->daddr;
src = &np->rcv_saddr;
@@ -2103,7 +2104,7 @@ static void get_timewait6_sock(struct seq_file *seq,
{
const struct in6_addr *dest, *src;
__u16 destp, srcp;
- struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
+ const struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
int ttd = tw->tw_ttd - jiffies;
if (ttd < 0)