Constify a few data tables use const qualifiers on variables where
possible in the nf_conntrack_icmp* sources.
Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
---
net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 10 ++++++----
net/ipv4/netfilter/nf_nat_proto_icmp.c | 2 +-
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 14 ++++++++------
3 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 4004a04..6d2723b 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -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);
diff --git a/net/ipv4/netfilter/nf_nat_proto_icmp.c b/net/ipv4/netfilter/nf_nat_proto_icmp.c
index a0e44c9..03a0296 100644
--- a/net/ipv4/netfilter/nf_nat_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_icmp.c
@@ -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;
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index da924c6..58fef1e 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -32,7 +32,8 @@ static int icmpv6_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
{
- struct icmp6hdr _hdr, *hp;
+ const struct icmp6hdr *hp;
+ struct icmp6hdr _hdr;
hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
if (hp == NULL)
@@ -45,7 +46,7 @@ static int icmpv6_pkt_to_tuple(const struct sk_buff *skb,
}
/* Add 1; spaces filled with 0. */
-static u_int8_t invmap[] = {
+static const u_int8_t invmap[] = {
[ICMPV6_ECHO_REQUEST - 128] = ICMPV6_ECHO_REPLY + 1,
[ICMPV6_ECHO_REPLY - 128] = ICMPV6_ECHO_REQUEST + 1,
[ICMPV6_NI_QUERY - 128] = ICMPV6_NI_QUERY + 1,
@@ -105,7 +106,7 @@ static int icmpv6_new(struct nf_conn *conntrack,
const struct sk_buff *skb,
unsigned int dataoff)
{
- static u_int8_t valid_new[] = {
+ static const u_int8_t valid_new[] = {
[ICMPV6_ECHO_REQUEST - 128] = 1,
[ICMPV6_NI_QUERY - 128] = 1
};
@@ -129,8 +130,8 @@ icmpv6_error_message(struct sk_buff *skb,
unsigned int hooknum)
{
struct nf_conntrack_tuple intuple, origtuple;
- struct nf_conntrack_tuple_hash *h;
- struct nf_conntrack_l4proto *inproto;
+ const struct nf_conntrack_tuple_hash *h;
+ const struct nf_conntrack_l4proto *inproto;
NF_CT_ASSERT(skb->nfct == NULL);
@@ -176,7 +177,8 @@ static int
icmpv6_error(struct sk_buff *skb, unsigned int dataoff,
enum ip_conntrack_info *ctinfo, int pf, unsigned int hooknum)
{
- struct icmp6hdr _ih, *icmp6h;
+ const struct icmp6hdr *icmp6h;
+ struct icmp6hdr _ih;
icmp6h = skb_header_pointer(skb, dataoff, sizeof(_ih), &_ih);
if (icmp6h == NULL) {
--
1.5.3.4
-
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