From eb1197bc0e20d3ceb450883dbd181460252f0306 Mon Sep 17 00:00:00 2001 From: Joonwoo Park Date: Tue, 19 Feb 2008 17:18:47 -0800 Subject: [PATCH] [NETFILTER]: Fix incorrect use of skb_make_writable http://bugzilla.kernel.org/show_bug.cgi?id=9920 The function skb_make_writable returns true or false. Signed-off-by: Joonwoo Park Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/bridge/netfilter/ebt_dnat.c | 2 +- net/bridge/netfilter/ebt_redirect.c | 2 +- net/bridge/netfilter/ebt_snat.c | 2 +- net/ipv4/netfilter/arpt_mangle.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c index e700cbf634..1ec671d93d 100644 --- a/net/bridge/netfilter/ebt_dnat.c +++ b/net/bridge/netfilter/ebt_dnat.c @@ -20,7 +20,7 @@ static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr, { const struct ebt_nat_info *info = data; - if (skb_make_writable(skb, 0)) + if (!skb_make_writable(skb, 0)) return NF_DROP; memcpy(eth_hdr(skb)->h_dest, info->mac, ETH_ALEN); diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c index bfdf2fb60b..bfb9f74e21 100644 --- a/net/bridge/netfilter/ebt_redirect.c +++ b/net/bridge/netfilter/ebt_redirect.c @@ -21,7 +21,7 @@ static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr, { const struct ebt_redirect_info *info = data; - if (skb_make_writable(skb, 0)) + if (!skb_make_writable(skb, 0)) return NF_DROP; if (hooknr != NF_BR_BROUTING) diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c index e252dabbb1..204f9965fb 100644 --- a/net/bridge/netfilter/ebt_snat.c +++ b/net/bridge/netfilter/ebt_snat.c @@ -22,7 +22,7 @@ static int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr, { const struct ebt_nat_info *info = data; - if (skb_make_writable(skb, 0)) + if (!skb_make_writable(skb, 0)) return NF_DROP; memcpy(eth_hdr(skb)->h_source, info->mac, ETH_ALEN); diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c index 45fa4e2009..3f4222b0a8 100644 --- a/net/ipv4/netfilter/arpt_mangle.c +++ b/net/ipv4/netfilter/arpt_mangle.c @@ -19,7 +19,7 @@ target(struct sk_buff *skb, unsigned char *arpptr; int pln, hln; - if (skb_make_writable(skb, skb->len)) + if (!skb_make_writable(skb, skb->len)) return NF_DROP; arp = arp_hdr(skb); -- 2.39.5