xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ipv6: Convert to use flowi6 where applicable.

Browse Source 
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2011-03-12 16:22:43 -05:00
parent 9cce96df5b
commit 4c9483b2fb
35 changed files with 622 additions and 620 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
net/ipv6/tcp_ipv6.c
View File

@@ -131,7 +131,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
struct tcp_sock *tp = tcp_sk(sk);
struct in6_addr *saddr = NULL, *final_p, final;
struct rt6_info *rt;
struct flowi fl;
struct flowi6 fl6;
struct dst_entry *dst;
int addr_type;
int err;
@@ -142,14 +142,14 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (usin->sin6_family != AF_INET6)
return -EAFNOSUPPORT;
memset(&fl, 0, sizeof(fl));
memset(&fl6, 0, sizeof(fl6));
if (np->sndflow) {
fl.fl6_flowlabel = usin->sin6_flowinfo&IPV6_FLOWINFO_MASK;
IP6_ECN_flow_init(fl.fl6_flowlabel);
if (fl.fl6_flowlabel&IPV6_FLOWLABEL_MASK) {
fl6.flowlabel = usin->sin6_flowinfo&IPV6_FLOWINFO_MASK;
IP6_ECN_flow_init(fl6.flowlabel);
if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
struct ip6_flowlabel *flowlabel;
flowlabel = fl6_sock_lookup(sk, fl.fl6_flowlabel);
flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
if (flowlabel == NULL)
return -EINVAL;
ipv6_addr_copy(&usin->sin6_addr, &flowlabel->dst);
@@ -195,7 +195,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
}
ipv6_addr_copy(&np->daddr, &usin->sin6_addr);
np->flow_label = fl.fl6_flowlabel;
np->flow_label = fl6.flowlabel;
/*
* TCP over IPv4
@@ -242,27 +242,27 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (!ipv6_addr_any(&np->rcv_saddr))
saddr = &np->rcv_saddr;
fl.flowi_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
ipv6_addr_copy(&fl.fl6_src,
fl6.flowi6_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl6.daddr, &np->daddr);
ipv6_addr_copy(&fl6.saddr,
(saddr ? saddr : &np->saddr));
fl.flowi_oif = sk->sk_bound_dev_if;
fl.flowi_mark = sk->sk_mark;
fl.fl6_dport = usin->sin6_port;
fl.fl6_sport = inet->inet_sport;
fl6.flowi6_oif = sk->sk_bound_dev_if;
fl6.flowi6_mark = sk->sk_mark;
fl6.uli.ports.dport = usin->sin6_port;
fl6.uli.ports.sport = inet->inet_sport;
final_p = fl6_update_dst(&fl, np->opt, &final);
final_p = fl6_update_dst(&fl6, np->opt, &final);
security_sk_classify_flow(sk, &fl);
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
dst = ip6_dst_lookup_flow(sk, &fl, final_p, true);
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto failure;
}
if (saddr == NULL) {
saddr = &fl.fl6_src;
saddr = &fl6.saddr;
ipv6_addr_copy(&np->rcv_saddr, saddr);
}
@@ -389,23 +389,23 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (dst == NULL) {
struct inet_sock *inet = inet_sk(sk);
struct flowi fl;
struct flowi6 fl6;
/* BUGGG_FUTURE: Again, it is not clear how
to handle rthdr case. Ignore this complexity
for now.
*/
memset(&fl, 0, sizeof(fl));
fl.flowi_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
ipv6_addr_copy(&fl.fl6_src, &np->saddr);
fl.flowi_oif = sk->sk_bound_dev_if;
fl.flowi_mark = sk->sk_mark;
fl.fl6_dport = inet->inet_dport;
fl.fl6_sport = inet->inet_sport;
security_skb_classify_flow(skb, &fl);
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl6.daddr, &np->daddr);
ipv6_addr_copy(&fl6.saddr, &np->saddr);
fl6.flowi6_oif = sk->sk_bound_dev_if;
fl6.flowi6_mark = sk->sk_mark;
fl6.uli.ports.dport = inet->inet_dport;
fl6.uli.ports.sport = inet->inet_sport;
security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));
dst = ip6_dst_lookup_flow(sk, &fl, NULL, false);
dst = ip6_dst_lookup_flow(sk, &fl6, NULL, false);
if (IS_ERR(dst)) {
sk->sk_err_soft = -PTR_ERR(dst);
goto out;
@@ -482,25 +482,25 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
struct sk_buff * skb;
struct ipv6_txoptions *opt = NULL;
struct in6_addr * final_p, final;
struct flowi fl;
struct flowi6 fl6;
struct dst_entry *dst;
int err;
memset(&fl, 0, sizeof(fl));
fl.flowi_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
ipv6_addr_copy(&fl.fl6_src, &treq->loc_addr);
fl.fl6_flowlabel = 0;
fl.flowi_oif = treq->iif;
fl.flowi_mark = sk->sk_mark;
fl.fl6_dport = inet_rsk(req)->rmt_port;
fl.fl6_sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, &fl);
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_TCP;
ipv6_addr_copy(&fl6.daddr, &treq->rmt_addr);
ipv6_addr_copy(&fl6.saddr, &treq->loc_addr);
fl6.flowlabel = 0;
fl6.flowi6_oif = treq->iif;
fl6.flowi6_mark = sk->sk_mark;
fl6.uli.ports.dport = inet_rsk(req)->rmt_port;
fl6.uli.ports.sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, flowi6_to_flowi(&fl6));
opt = np->opt;
final_p = fl6_update_dst(&fl, opt, &final);
final_p = fl6_update_dst(&fl6, opt, &final);
dst = ip6_dst_lookup_flow(sk, &fl, final_p, false);
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto done;
@@ -510,8 +510,8 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
if (skb) {
__tcp_v6_send_check(skb, &treq->loc_addr, &treq->rmt_addr);
ipv6_addr_copy(&fl.fl6_dst, &treq->rmt_addr);
err = ip6_xmit(sk, skb, &fl, opt);
ipv6_addr_copy(&fl6.daddr, &treq->rmt_addr);
err = ip6_xmit(sk, skb, &fl6, opt);
err = net_xmit_eval(err);
}
@@ -992,7 +992,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
{
struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
struct flowi6 fl6;
struct net *net = dev_net(skb_dst(skb)->dev);
struct sock *ctl_sk = net->ipv6.tcp_sk;
unsigned int tot_len = sizeof(struct tcphdr);
@@ -1046,29 +1046,29 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
}
#endif
memset(&fl, 0, sizeof(fl));
ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr);
memset(&fl6, 0, sizeof(fl6));
ipv6_addr_copy(&fl6.daddr, &ipv6_hdr(skb)->saddr);
ipv6_addr_copy(&fl6.saddr, &ipv6_hdr(skb)->daddr);
buff->ip_summed = CHECKSUM_PARTIAL;
buff->csum = 0;
__tcp_v6_send_check(buff, &fl.fl6_src, &fl.fl6_dst);
__tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr);
fl.flowi_proto = IPPROTO_TCP;
fl.flowi_oif = inet6_iif(skb);
fl.fl6_dport = t1->dest;
fl.fl6_sport = t1->source;
security_skb_classify_flow(skb, &fl);
fl6.flowi6_proto = IPPROTO_TCP;
fl6.flowi6_oif = inet6_iif(skb);
fl6.uli.ports.dport = t1->dest;
fl6.uli.ports.sport = t1->source;
security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));
/* Pass a socket to ip6_dst_lookup either it is for RST
* Underlying function will use this to retrieve the network
* namespace
*/
dst = ip6_dst_lookup_flow(ctl_sk, &fl, NULL, false);
dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
if (!IS_ERR(dst)) {
skb_dst_set(buff, dst);
ip6_xmit(ctl_sk, buff, &fl, NULL);
ip6_xmit(ctl_sk, buff, &fl6, NULL);
TCP_INC_STATS_BH(net, TCP_MIB_OUTSEGS);
if (rst)
TCP_INC_STATS_BH(net, TCP_MIB_OUTRSTS);