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path: root/net/ipv6/tcp_ipv6.c
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Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c65
1 files changed, 34 insertions, 31 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7b8fc579435..10b2b3165a1 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,
@@ -513,7 +513,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
__tcp_v6_send_check(skb, &treq->loc_addr, &treq->rmt_addr);
ipv6_addr_copy(&fl6.daddr, &treq->rmt_addr);
- err = ip6_xmit(sk, skb, &fl6, opt);
+ err = ip6_xmit(sk, skb, &fl6, opt, np->tclass);
err = net_xmit_eval(err);
}
@@ -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)
{
- __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);
+ const struct tcphdr *th = tcp_hdr(skb);
int genhash;
u8 newhash[16];
@@ -978,9 +979,10 @@ 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)
+ u32 ts, struct tcp_md5sig_key *key, int rst, u8 tclass)
{
- 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);
@@ -1058,7 +1060,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
if (!IS_ERR(dst)) {
skb_dst_set(buff, dst);
- ip6_xmit(ctl_sk, buff, &fl6, NULL);
+ ip6_xmit(ctl_sk, buff, &fl6, NULL, tclass);
TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
if (rst)
TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);
@@ -1070,7 +1072,7 @@ 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;
@@ -1091,13 +1093,13 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
ack_seq = ntohl(th->seq) + th->syn + th->fin + skb->len -
(th->doff << 2);
- tcp_v6_send_response(skb, seq, ack_seq, 0, 0, key, 1);
+ tcp_v6_send_response(skb, seq, ack_seq, 0, 0, key, 1, 0);
}
static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 ts,
- struct tcp_md5sig_key *key)
+ struct tcp_md5sig_key *key, u8 tclass)
{
- tcp_v6_send_response(skb, seq, ack, win, ts, key, 0);
+ tcp_v6_send_response(skb, seq, ack, win, ts, key, 0, tclass);
}
static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
@@ -1107,7 +1109,8 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
tcp_v6_send_ack(skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt,
tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale,
- tcptw->tw_ts_recent, tcp_twsk_md5_key(tcptw));
+ tcptw->tw_ts_recent, tcp_twsk_md5_key(tcptw),
+ tw->tw_tclass);
inet_twsk_put(tw);
}
@@ -1116,7 +1119,7 @@ static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
struct request_sock *req)
{
tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd, req->ts_recent,
- tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr));
+ tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr), 0);
}
@@ -1160,7 +1163,7 @@ 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);
@@ -1608,7 +1611,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
opt_skb = skb_clone(skb, GFP_ATOMIC);
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
- sock_rps_save_rxhash(sk, skb->rxhash);
+ sock_rps_save_rxhash(sk, skb);
if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
if (opt_skb)
@@ -1630,7 +1633,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
* the new socket..
*/
if(nsk != sk) {
- sock_rps_save_rxhash(nsk, skb->rxhash);
+ sock_rps_save_rxhash(nsk, skb);
if (tcp_child_process(sk, nsk, skb))
goto reset;
if (opt_skb)
@@ -1638,7 +1641,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
return 0;
}
} else
- sock_rps_save_rxhash(sk, skb->rxhash);
+ sock_rps_save_rxhash(sk, skb);
if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
@@ -1688,7 +1691,7 @@ 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;
@@ -1722,7 +1725,7 @@ static int tcp_v6_rcv(struct sk_buff *skb)
skb->len - th->doff*4);
TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);
TCP_SKB_CB(skb)->when = 0;
- TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(hdr);
+ TCP_SKB_CB(skb)->ip_dsfield = ipv6_get_dsfield(hdr);
TCP_SKB_CB(skb)->sacked = 0;
sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
@@ -1856,8 +1859,8 @@ 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 +2015,7 @@ 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 +2051,10 @@ 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 +2106,7 @@ 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)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 08:48:27 +0000