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authorHerbert Xu <herbert@gondor.apana.org.au>2005-09-05 18:47:10 -0700
committerChris Wright <chrisw@osdl.org>2005-09-09 19:42:51 -0700
commita49567a4dbfd414f19e5bf828a4b2c540f164ea8 (patch)
treebc17bea3ca0833123374bc4031b74894762f8961
parent2811d271ee67f4de6c6d7e2c731698f6f9f7746a (diff)
[PATCH] 2.6.13 breaks libpcap (and tcpdump)
[NET]: 2.6.13 breaks libpcap (and tcpdump) Patrick McHardy says: Never mind, I got it, we never fall through to the second switch statement anymore. I think we could simply break when load_pointer returns NULL. The switch statement will fall through to the default case and return 0 for all cases but 0 > k >= SKF_AD_OFF. Here's a patch to do just that. I left BPF_MSH alone because it's really a hack to calculate the IP header length, which makes no sense when applied to the special data. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/core/filter.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index cd91a24f972..079c2edff78 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -182,7 +182,7 @@ int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen)
A = ntohl(*(u32 *)ptr);
continue;
}
- return 0;
+ break;
case BPF_LD|BPF_H|BPF_ABS:
k = fentry->k;
load_h:
@@ -191,7 +191,7 @@ int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen)
A = ntohs(*(u16 *)ptr);
continue;
}
- return 0;
+ break;
case BPF_LD|BPF_B|BPF_ABS:
k = fentry->k;
load_b:
@@ -200,7 +200,7 @@ load_b:
A = *(u8 *)ptr;
continue;
}
- return 0;
+ break;
case BPF_LD|BPF_W|BPF_LEN:
A = skb->len;
continue;