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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-10-18 21:00:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-19 03:10:46 -0400 |
| commit | 9e903e085262ffbf1fc44a17ac06058aca03524a (patch) | |
| tree | 4acefc97ba38c1733474d25c0b2053b56af97db1 /net/ipv6 | |
| parent | dd767856a36e00b631d65ebc4bb81b19915532d6 (diff) | |
| download | linux-3.10-9e903e085262ffbf1fc44a17ac06058aca03524a.tar.gz linux-3.10-9e903e085262ffbf1fc44a17ac06058aca03524a.tar.bz2 linux-3.10-9e903e085262ffbf1fc44a17ac06058aca03524a.zip | |
net: add skb frag size accessors
To ease skb->truesize sanitization, its better to be able to localize
all references to skb frags size.
Define accessors : skb_frag_size() to fetch frag size, and
skb_frag_size_{set|add|sub}() to manipulate it.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_output.c | 5 | ||||
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_reasm.c | 4 | ||||
| -rw-r--r-- | net/ipv6/reassembly.c | 4 |
3 files changed, 7 insertions, 6 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 1e20b64e646..1c9bf8b5c30 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1512,13 +1512,14 @@ alloc_new_skb: err = -EMSGSIZE; goto error; } - if (getfrag(from, skb_frag_address(frag)+frag->size, + if (getfrag(from, + skb_frag_address(frag) + skb_frag_size(frag), offset, copy, skb->len, skb) < 0) { err = -EFAULT; goto error; } sk->sk_sndmsg_off += copy; - frag->size += copy; + skb_frag_size_add(frag, copy); skb->len += copy; skb->data_len += copy; skb->truesize += copy; diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 08572726381..e8762c73b17 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -378,8 +378,8 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev) head->next = clone; skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list; skb_frag_list_init(head); - for (i=0; i<skb_shinfo(head)->nr_frags; i++) - plen += skb_shinfo(head)->frags[i].size; + for (i = 0; i < skb_shinfo(head)->nr_frags; i++) + plen += skb_frag_size(&skb_shinfo(head)->frags[i]); clone->len = clone->data_len = head->data_len - plen; head->data_len -= clone->len; head->len -= clone->len; diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 7b954e2539d..cc22099ac8b 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -464,8 +464,8 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev, head->next = clone; skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list; skb_frag_list_init(head); - for (i=0; i<skb_shinfo(head)->nr_frags; i++) - plen += skb_shinfo(head)->frags[i].size; + for (i = 0; i < skb_shinfo(head)->nr_frags; i++) + plen += skb_frag_size(&skb_shinfo(head)->frags[i]); clone->len = clone->data_len = head->data_len - plen; head->data_len -= clone->len; head->len -= clone->len; |