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ipv6: Convert to use flowi6 where applicable.

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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

110
net/ipv6/icmp.c
View file

@ -158,7 +158,7 @@ static int is_ineligible(struct sk_buff *skb)
* Check the ICMP output rate limit
*/
static inline bool icmpv6_xrlim_allow(struct sock *sk, u8 type,
struct flowi *fl)
struct flowi6 *fl6)
{
struct dst_entry *dst;
struct net *net = sock_net(sk);
@ -177,7 +177,7 @@ static inline bool icmpv6_xrlim_allow(struct sock *sk, u8 type,
* XXX: perhaps the expire for routing entries cloned by
* this lookup should be more aggressive (not longer than timeout).
*/
dst = ip6_route_output(net, sk, fl);
dst = ip6_route_output(net, sk, fl6);
if (dst->error) {
IP6_INC_STATS(net, ip6_dst_idev(dst),
IPSTATS_MIB_OUTNOROUTES);
@ -217,7 +217,7 @@ static __inline__ int opt_unrec(struct sk_buff *skb, __u32 offset)
return (*op & 0xC0) == 0x80;
}
static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct icmp6hdr *thdr, int len)
static int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, struct icmp6hdr *thdr, int len)
{
struct sk_buff *skb;
struct icmp6hdr *icmp6h;
@ -233,9 +233,9 @@ static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct
if (skb_queue_len(&sk->sk_write_queue) == 1) {
skb->csum = csum_partial(icmp6h,
sizeof(struct icmp6hdr), skb->csum);
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src,
&fl->fl6_dst,
len, fl->flowi_proto,
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl6->saddr,
&fl6->daddr,
len, fl6->flowi6_proto,
skb->csum);
} else {
__wsum tmp_csum = 0;
@ -246,9 +246,9 @@ static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct
tmp_csum = csum_partial(icmp6h,
sizeof(struct icmp6hdr), tmp_csum);
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src,
&fl->fl6_dst,
len, fl->flowi_proto,
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl6->saddr,
&fl6->daddr,
len, fl6->flowi6_proto,
tmp_csum);
}
ip6_push_pending_frames(sk);
@ -301,13 +301,13 @@ static inline void mip6_addr_swap(struct sk_buff *skb) {}
#endif
static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
struct sock *sk, struct flowi *fl)
struct sock *sk, struct flowi6 *fl6)
{
struct dst_entry *dst, *dst2;
struct flowi fl2;
struct flowi6 fl2;
int err;
err = ip6_dst_lookup(sk, &dst, fl);
err = ip6_dst_lookup(sk, &dst, fl6);
if (err)
return ERR_PTR(err);
@ -324,7 +324,7 @@ static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *sk
/* No need to clone since we're just using its address. */
dst2 = dst;
dst = xfrm_lookup(net, dst, fl, sk, 0);
dst = xfrm_lookup(net, dst, flowi6_to_flowi(fl6), sk, 0);
if (!IS_ERR(dst)) {
if (dst != dst2)
return dst;
@ -335,7 +335,7 @@ static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *sk
return dst;
}
err = xfrm_decode_session_reverse(skb, &fl2, AF_INET6);
err = xfrm_decode_session_reverse(skb, flowi6_to_flowi(&fl2), AF_INET6);
if (err)
goto relookup_failed;
@ -343,7 +343,7 @@ static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *sk
if (err)
goto relookup_failed;
dst2 = xfrm_lookup(net, dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
dst2 = xfrm_lookup(net, dst2, flowi6_to_flowi(&fl2), sk, XFRM_LOOKUP_ICMP);
if (!IS_ERR(dst2)) {
dst_release(dst);
dst = dst2;
@ -375,7 +375,7 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
struct in6_addr *saddr = NULL;
struct dst_entry *dst;
struct icmp6hdr tmp_hdr;
struct flowi fl;
struct flowi6 fl6;
struct icmpv6_msg msg;
int iif = 0;
int addr_type = 0;
@ -442,22 +442,22 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
mip6_addr_swap(skb);
memset(&fl, 0, sizeof(fl));
fl.flowi_proto = IPPROTO_ICMPV6;
ipv6_addr_copy(&fl.fl6_dst, &hdr->saddr);
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_ICMPV6;
ipv6_addr_copy(&fl6.daddr, &hdr->saddr);
if (saddr)
ipv6_addr_copy(&fl.fl6_src, saddr);
fl.flowi_oif = iif;
fl.fl6_icmp_type = type;
fl.fl6_icmp_code = code;
security_skb_classify_flow(skb, &fl);
ipv6_addr_copy(&fl6.saddr, saddr);
fl6.flowi6_oif = iif;
fl6.uli.icmpt.type = type;
fl6.uli.icmpt.code = code;
security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));
sk = icmpv6_xmit_lock(net);
if (sk == NULL)
return;
np = inet6_sk(sk);
if (!icmpv6_xrlim_allow(sk, type, &fl))
if (!icmpv6_xrlim_allow(sk, type, &fl6))
goto out;
tmp_hdr.icmp6_type = type;
@ -465,14 +465,14 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
tmp_hdr.icmp6_cksum = 0;
tmp_hdr.icmp6_pointer = htonl(info);
if (!fl.flowi_oif && ipv6_addr_is_multicast(&fl.fl6_dst))
fl.flowi_oif = np->mcast_oif;
if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
fl6.flowi6_oif = np->mcast_oif;
dst = icmpv6_route_lookup(net, skb, sk, &fl);
dst = icmpv6_route_lookup(net, skb, sk, &fl6);
if (IS_ERR(dst))
goto out;
if (ipv6_addr_is_multicast(&fl.fl6_dst))
if (ipv6_addr_is_multicast(&fl6.daddr))
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
@ -495,14 +495,14 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
err = ip6_append_data(sk, icmpv6_getfrag, &msg,
len + sizeof(struct icmp6hdr),
sizeof(struct icmp6hdr), hlimit,
np->tclass, NULL, &fl, (struct rt6_info*)dst,
np->tclass, NULL, &fl6, (struct rt6_info*)dst,
MSG_DONTWAIT, np->dontfrag);
if (err) {
ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTERRORS);
ip6_flush_pending_frames(sk);
goto out_put;
}
err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, len + sizeof(struct icmp6hdr));
err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr, len + sizeof(struct icmp6hdr));
out_put:
if (likely(idev != NULL))
@ -524,7 +524,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
struct in6_addr *saddr = NULL;
struct icmp6hdr *icmph = icmp6_hdr(skb);
struct icmp6hdr tmp_hdr;
struct flowi fl;
struct flowi6 fl6;
struct icmpv6_msg msg;
struct dst_entry *dst;
int err = 0;
@ -538,31 +538,31 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
memcpy(&tmp_hdr, icmph, sizeof(tmp_hdr));
tmp_hdr.icmp6_type = ICMPV6_ECHO_REPLY;
memset(&fl, 0, sizeof(fl));
fl.flowi_proto = IPPROTO_ICMPV6;
ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_ICMPV6;
ipv6_addr_copy(&fl6.daddr, &ipv6_hdr(skb)->saddr);
if (saddr)
ipv6_addr_copy(&fl.fl6_src, saddr);
fl.flowi_oif = skb->dev->ifindex;
fl.fl6_icmp_type = ICMPV6_ECHO_REPLY;
security_skb_classify_flow(skb, &fl);
ipv6_addr_copy(&fl6.saddr, saddr);
fl6.flowi6_oif = skb->dev->ifindex;
fl6.uli.icmpt.type = ICMPV6_ECHO_REPLY;
security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));
sk = icmpv6_xmit_lock(net);
if (sk == NULL)
return;
np = inet6_sk(sk);
if (!fl.flowi_oif && ipv6_addr_is_multicast(&fl.fl6_dst))
fl.flowi_oif = np->mcast_oif;
if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
fl6.flowi6_oif = np->mcast_oif;
err = ip6_dst_lookup(sk, &dst, &fl);
err = ip6_dst_lookup(sk, &dst, &fl6);
if (err)
goto out;
dst = xfrm_lookup(net, dst, &fl, sk, 0);
dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), sk, 0);
if (IS_ERR(dst))
goto out;
if (ipv6_addr_is_multicast(&fl.fl6_dst))
if (ipv6_addr_is_multicast(&fl6.daddr))
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
@ -576,7 +576,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
msg.type = ICMPV6_ECHO_REPLY;
err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr),
sizeof(struct icmp6hdr), hlimit, np->tclass, NULL, &fl,
sizeof(struct icmp6hdr), hlimit, np->tclass, NULL, &fl6,
(struct rt6_info*)dst, MSG_DONTWAIT,
np->dontfrag);
@ -585,7 +585,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
ip6_flush_pending_frames(sk);
goto out_put;
}
err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, skb->len + sizeof(struct icmp6hdr));
err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr, skb->len + sizeof(struct icmp6hdr));
out_put:
if (likely(idev != NULL))
@ -784,20 +784,20 @@ drop_no_count:
return 0;
}
void icmpv6_flow_init(struct sock *sk, struct flowi *fl,
void icmpv6_flow_init(struct sock *sk, struct flowi6 *fl6,
u8 type,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
int oif)
{
memset(fl, 0, sizeof(*fl));
ipv6_addr_copy(&fl->fl6_src, saddr);
ipv6_addr_copy(&fl->fl6_dst, daddr);
fl->flowi_proto = IPPROTO_ICMPV6;
fl->fl6_icmp_type = type;
fl->fl6_icmp_code = 0;
fl->flowi_oif = oif;
security_sk_classify_flow(sk, fl);
memset(fl6, 0, sizeof(*fl6));
ipv6_addr_copy(&fl6->saddr, saddr);
ipv6_addr_copy(&fl6->daddr, daddr);
fl6->flowi6_proto = IPPROTO_ICMPV6;
fl6->uli.icmpt.type = type;
fl6->uli.icmpt.code = 0;
fl6->flowi6_oif = oif;
security_sk_classify_flow(sk, flowi6_to_flowi(fl6));
}
/*