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| author | Patrick McHardy <kaber@trash.net> | 2005-07-05 14:10:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-07-05 14:10:40 -0700 |
| commit | 3154e540e374bbfd62693d95bc8ed51da95efe75 (patch) | |
| tree | 45f44e770c3102f0dcfdcb5de3709113e4e120db /net | |
| parent | 0b05b2a49e430220876f8faa7e4778dc7497033c (diff) | |
| download | op-kernel-dev-3154e540e374bbfd62693d95bc8ed51da95efe75.zip op-kernel-dev-3154e540e374bbfd62693d95bc8ed51da95efe75.tar.gz | |
[NET]: net/core/filter.c: make len cover the entire packet
As suggested by Herbert Xu:
Since we don't require anything to be in the linear packet range
anymore make len cover the entire packet.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/filter.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 3923428..cd91a24 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -76,10 +76,6 @@ static inline void *load_pointer(struct sk_buff *skb, int k, int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen) { - /* len is UNSIGNED. Byte wide insns relies only on implicit - type casts to prevent reading arbitrary memory locations. - */ - unsigned int len = skb->len-skb->data_len; struct sock_filter *fentry; /* We walk down these */ void *ptr; u32 A = 0; /* Accumulator */ @@ -206,10 +202,10 @@ load_b: } return 0; case BPF_LD|BPF_W|BPF_LEN: - A = len; + A = skb->len; continue; case BPF_LDX|BPF_W|BPF_LEN: - X = len; + X = skb->len; continue; case BPF_LD|BPF_W|BPF_IND: k = X + fentry->k; |
