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[NETFILTER]: nf_{conntrack,nat}_icmp: constify and annotate

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Constify a few data tables use const qualifiers on variables where
possible in the nf_conntrack_icmp* sources.

Signed-off-by: Jan Engelhardt <[email protected]>
Signed-off-by: Patrick McHardy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jan Engelhardt 2008-01-31 04:53:05 -08:00 • committed by David S. Miller
commit 7cc3864d39
3 changed files with 15 additions and 11 deletions
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10
net/ipv4/netfilter/nf_conntrack_proto_icmp.c
View file

@ -26,7 +26,8 @@ static int icmp_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
{
struct icmphdr _hdr, *hp;
const struct icmphdr *hp;
struct icmphdr _hdr;
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
@ -129,8 +130,8 @@ icmp_error_message(struct sk_buff *skb,
unsigned int hooknum)
{
struct nf_conntrack_tuple innertuple, origtuple;
struct nf_conntrack_l4proto *innerproto;
struct nf_conntrack_tuple_hash *h;
const struct nf_conntrack_l4proto *innerproto;
const struct nf_conntrack_tuple_hash *h;
NF_CT_ASSERT(skb->nfct == NULL);
@ -176,7 +177,8 @@ static int
icmp_error(struct sk_buff *skb, unsigned int dataoff,
enum ip_conntrack_info *ctinfo, int pf, unsigned int hooknum)
{
struct icmphdr _ih, *icmph;
const struct icmphdr *icmph;
struct icmphdr _ih;
/* Not enough header? */
icmph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_ih), &_ih);

2
net/ipv4/netfilter/nf_nat_proto_icmp.c
View file

@ -57,7 +57,7 @@ icmp_manip_pkt(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple,
enum nf_nat_manip_type maniptype)
{
struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
struct icmphdr *hdr;
unsigned int hdroff = iphdroff + iph->ihl*4;