From bd82393ca23324d103b21aae43160728da6e6c9c Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 13 Mar 2007 17:10:43 -0300 Subject: [PATCH] [SK_BUFF]: More skb_reset_transport_header conversions These are a bit more subtle, they are of this type: - skb->h.raw = payload; __skb_pull(skb, payload - skb->data); + skb_reset_transport_header(skb); __skb_pull results in: skb->data = skb->data + payload - skb->data; skb->data = payload; So after __skb_pull we have skb->data pointing to payload and we can just call skb_reset_transport_header(skb), that will do: skb->h.raw = payload; The others are similar, allowing us to get rid of some more cases where a pointer was being attributed to the layer headers. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/ipv4/ip_sockglue.c | 12 +++++++----- net/ipv6/datagram.c | 4 ++-- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index ccdc59df01..fcb35cd5cc 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -278,10 +278,12 @@ void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, skb_network_header(skb); serr->port = port; - skb->h.raw = payload; - if (!skb_pull(skb, payload - skb->data) || - sock_queue_err_skb(sk, skb)) - kfree_skb(skb); + if (skb_pull(skb, payload - skb->data) != NULL) { + skb_reset_transport_header(skb); + if (sock_queue_err_skb(sk, skb) == 0) + return; + } + kfree_skb(skb); } void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 info) @@ -314,8 +316,8 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 inf serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb); serr->port = port; - skb->h.raw = skb->tail; __skb_pull(skb, skb->tail - skb->data); + skb_reset_transport_header(skb); if (sock_queue_err_skb(sk, skb)) kfree_skb(skb); diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index feba6b197f..f16f4f0c58 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -231,8 +231,8 @@ void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, skb_network_header(skb); serr->port = port; - skb->h.raw = payload; __skb_pull(skb, payload - skb->data); + skb_reset_transport_header(skb); if (sock_queue_err_skb(sk, skb)) kfree_skb(skb); @@ -268,8 +268,8 @@ void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info) serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb); serr->port = fl->fl_ip_dport; - skb->h.raw = skb->tail; __skb_pull(skb, skb->tail - skb->data); + skb_reset_transport_header(skb); if (sock_queue_err_skb(sk, skb)) kfree_skb(skb); -- 2.39.5