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Diffstat (limited to 'net/dccp/ipv6.c')
-rw-r--r--net/dccp/ipv6.c188
1 files changed, 80 insertions, 108 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index dca711df9b6..de1b7e37ad5 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -147,30 +147,24 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
dst = __sk_dst_check(sk, np->dst_cookie);
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.proto = IPPROTO_DCCP;
- ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
- ipv6_addr_copy(&fl.fl6_src, &np->saddr);
- fl.oif = sk->sk_bound_dev_if;
- fl.fl_ip_dport = inet->inet_dport;
- fl.fl_ip_sport = inet->inet_sport;
- security_sk_classify_flow(sk, &fl);
-
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err) {
- sk->sk_err_soft = -err;
- goto out;
- }
-
- err = xfrm_lookup(net, &dst, &fl, sk, 0);
- if (err < 0) {
- sk->sk_err_soft = -err;
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.flowi6_proto = IPPROTO_DCCP;
+ ipv6_addr_copy(&fl6.daddr, &np->daddr);
+ ipv6_addr_copy(&fl6.saddr, &np->saddr);
+ fl6.flowi6_oif = sk->sk_bound_dev_if;
+ fl6.fl6_dport = inet->inet_dport;
+ fl6.fl6_sport = inet->inet_sport;
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
+
+ dst = ip6_dst_lookup_flow(sk, &fl6, NULL, false);
+ if (IS_ERR(dst)) {
+ sk->sk_err_soft = -PTR_ERR(dst);
goto out;
}
} else
@@ -249,34 +243,30 @@ static int dccp_v6_send_response(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;
int err = -1;
struct dst_entry *dst;
- memset(&fl, 0, sizeof(fl));
- fl.proto = IPPROTO_DCCP;
- ipv6_addr_copy(&fl.fl6_dst, &ireq6->rmt_addr);
- ipv6_addr_copy(&fl.fl6_src, &ireq6->loc_addr);
- fl.fl6_flowlabel = 0;
- fl.oif = ireq6->iif;
- fl.fl_ip_dport = inet_rsk(req)->rmt_port;
- fl.fl_ip_sport = inet_rsk(req)->loc_port;
- security_req_classify_flow(req, &fl);
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.flowi6_proto = IPPROTO_DCCP;
+ ipv6_addr_copy(&fl6.daddr, &ireq6->rmt_addr);
+ ipv6_addr_copy(&fl6.saddr, &ireq6->loc_addr);
+ fl6.flowlabel = 0;
+ fl6.flowi6_oif = ireq6->iif;
+ fl6.fl6_dport = inet_rsk(req)->rmt_port;
+ fl6.fl6_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);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
- goto done;
-
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0);
- if (err < 0)
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
goto done;
+ }
skb = dccp_make_response(sk, dst, req);
if (skb != NULL) {
@@ -285,8 +275,8 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req,
dh->dccph_checksum = dccp_v6_csum_finish(skb,
&ireq6->loc_addr,
&ireq6->rmt_addr);
- ipv6_addr_copy(&fl.fl6_dst, &ireq6->rmt_addr);
- err = ip6_xmit(sk, skb, &fl, opt);
+ ipv6_addr_copy(&fl6.daddr, &ireq6->rmt_addr);
+ err = ip6_xmit(sk, skb, &fl6, opt);
err = net_xmit_eval(err);
}
@@ -308,7 +298,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
{
struct ipv6hdr *rxip6h;
struct sk_buff *skb;
- struct flowi fl;
+ struct flowi6 fl6;
struct net *net = dev_net(skb_dst(rxskb)->dev);
struct sock *ctl_sk = net->dccp.v6_ctl_sk;
struct dst_entry *dst;
@@ -327,25 +317,24 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
dccp_hdr(skb)->dccph_checksum = dccp_v6_csum_finish(skb, &rxip6h->saddr,
&rxip6h->daddr);
- memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &rxip6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &rxip6h->daddr);
+ memset(&fl6, 0, sizeof(fl6));
+ ipv6_addr_copy(&fl6.daddr, &rxip6h->saddr);
+ ipv6_addr_copy(&fl6.saddr, &rxip6h->daddr);
- fl.proto = IPPROTO_DCCP;
- fl.oif = inet6_iif(rxskb);
- fl.fl_ip_dport = dccp_hdr(skb)->dccph_dport;
- fl.fl_ip_sport = dccp_hdr(skb)->dccph_sport;
- security_skb_classify_flow(rxskb, &fl);
+ fl6.flowi6_proto = IPPROTO_DCCP;
+ fl6.flowi6_oif = inet6_iif(rxskb);
+ fl6.fl6_dport = dccp_hdr(skb)->dccph_dport;
+ fl6.fl6_sport = dccp_hdr(skb)->dccph_sport;
+ security_skb_classify_flow(rxskb, flowi6_to_flowi(&fl6));
/* sk = NULL, but it is safe for now. RST socket required. */
- if (!ip6_dst_lookup(ctl_sk, &dst, &fl)) {
- if (xfrm_lookup(net, &dst, &fl, NULL, 0) >= 0) {
- skb_dst_set(skb, dst);
- ip6_xmit(ctl_sk, skb, &fl, NULL);
- DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
- DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
- return;
- }
+ dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
+ if (!IS_ERR(dst)) {
+ skb_dst_set(skb, dst);
+ ip6_xmit(ctl_sk, skb, &fl6, NULL);
+ DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
+ DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
+ return;
}
kfree_skb(skb);
@@ -484,7 +473,6 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
struct inet6_request_sock *ireq6 = inet6_rsk(req);
struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
struct inet_sock *newinet;
- struct dccp_sock *newdp;
struct dccp6_sock *newdp6;
struct sock *newsk;
struct ipv6_txoptions *opt;
@@ -498,7 +486,6 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
return NULL;
newdp6 = (struct dccp6_sock *)newsk;
- newdp = dccp_sk(newsk);
newinet = inet_sk(newsk);
newinet->pinet6 = &newdp6->inet6;
newnp = inet6_sk(newsk);
@@ -540,25 +527,20 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
if (dst == NULL) {
struct in6_addr *final_p, final;
- struct flowi fl;
-
- memset(&fl, 0, sizeof(fl));
- fl.proto = IPPROTO_DCCP;
- ipv6_addr_copy(&fl.fl6_dst, &ireq6->rmt_addr);
- final_p = fl6_update_dst(&fl, opt, &final);
- ipv6_addr_copy(&fl.fl6_src, &ireq6->loc_addr);
- fl.oif = sk->sk_bound_dev_if;
- fl.fl_ip_dport = inet_rsk(req)->rmt_port;
- fl.fl_ip_sport = inet_rsk(req)->loc_port;
- security_sk_classify_flow(sk, &fl);
-
- if (ip6_dst_lookup(sk, &dst, &fl))
- goto out;
-
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- if ((xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0)
+ struct flowi6 fl6;
+
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.flowi6_proto = IPPROTO_DCCP;
+ ipv6_addr_copy(&fl6.daddr, &ireq6->rmt_addr);
+ final_p = fl6_update_dst(&fl6, opt, &final);
+ ipv6_addr_copy(&fl6.saddr, &ireq6->loc_addr);
+ fl6.flowi6_oif = sk->sk_bound_dev_if;
+ fl6.fl6_dport = inet_rsk(req)->rmt_port;
+ fl6.fl6_sport = inet_rsk(req)->loc_port;
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
+
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ if (IS_ERR(dst))
goto out;
}
@@ -578,7 +560,6 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
newdp6 = (struct dccp6_sock *)newsk;
newinet = inet_sk(newsk);
newinet->pinet6 = &newdp6->inet6;
- newdp = dccp_sk(newsk);
newnp = inet6_sk(newsk);
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
@@ -878,7 +859,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
struct ipv6_pinfo *np = inet6_sk(sk);
struct dccp_sock *dp = dccp_sk(sk);
struct in6_addr *saddr = NULL, *final_p, final;
- struct flowi fl;
+ struct flowi6 fl6;
struct dst_entry *dst;
int addr_type;
int err;
@@ -891,14 +872,14 @@ static int dccp_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);
@@ -935,7 +916,7 @@ static int dccp_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;
/*
* DCCP over IPv4
@@ -972,33 +953,24 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (!ipv6_addr_any(&np->rcv_saddr))
saddr = &np->rcv_saddr;
- fl.proto = IPPROTO_DCCP;
- ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
- ipv6_addr_copy(&fl.fl6_src, saddr ? saddr : &np->saddr);
- fl.oif = sk->sk_bound_dev_if;
- fl.fl_ip_dport = usin->sin6_port;
- fl.fl_ip_sport = inet->inet_sport;
- security_sk_classify_flow(sk, &fl);
+ fl6.flowi6_proto = IPPROTO_DCCP;
+ ipv6_addr_copy(&fl6.daddr, &np->daddr);
+ ipv6_addr_copy(&fl6.saddr, saddr ? saddr : &np->saddr);
+ fl6.flowi6_oif = sk->sk_bound_dev_if;
+ fl6.fl6_dport = usin->sin6_port;
+ fl6.fl6_sport = inet->inet_sport;
+ security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- final_p = fl6_update_dst(&fl, np->opt, &final);
+ final_p = fl6_update_dst(&fl6, np->opt, &final);
- err = ip6_dst_lookup(sk, &dst, &fl);
- if (err)
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
goto failure;
-
- if (final_p)
- ipv6_addr_copy(&fl.fl6_dst, final_p);
-
- err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
- if (err < 0) {
- if (err == -EREMOTE)
- err = ip6_dst_blackhole(sk, &dst, &fl);
- if (err < 0)
- goto failure;
}
if (saddr == NULL) {
- saddr = &fl.fl6_src;
+ saddr = &fl6.saddr;
ipv6_addr_copy(&np->rcv_saddr, saddr);
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-24 02:32:00 +0000