Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
---
net/ipv4/netfilter/nf_nat_core.c | 8 ++++----
net/ipv4/netfilter/nf_nat_snmp_basic.c | 17 ++++++++---------
net/ipv4/netfilter/nf_nat_standalone.c | 8 ++++----
3 files changed, 16 insertions(+), 17 deletions(-)
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 0d5fa3a..9c8aa8d 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -150,9 +150,9 @@ find_appropriate_src(const struct nf_conntrack_tuple *tuple,
const struct nf_nat_range *range)
{
unsigned int h = hash_by_src(tuple);
- struct nf_conn_nat *nat;
- struct nf_conn *ct;
- struct hlist_node *n;
+ const struct nf_conn_nat *nat;
+ const struct nf_conn *ct;
+ const struct hlist_node *n;
rcu_read_lock();
hlist_for_each_entry_rcu(nat, n, &bysource[h], bysource) {
@@ -426,7 +426,7 @@ int nf_nat_icmp_reply_translation(struct nf_conn *ct,
struct icmphdr icmp;
struct iphdr ip;
} *inside;
- struct nf_conntrack_l4proto *l4proto;
+ const struct nf_conntrack_l4proto *l4proto;
struct nf_conntrack_tuple inner, target;
int hdrlen = ip_hdrlen(skb);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 000e080..5daefad 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -220,7 +220,7 @@ static unsigned char asn1_length_decode(struct asn1_ctx *ctx,
if (ch < 0x80)
*len = ch;
else {
- cnt = (unsigned char) (ch & 0x7F);
+ cnt = ch & 0x7F;
*len = 0;
while (cnt > 0) {
@@ -618,8 +618,7 @@ struct snmp_cnv
int syntax;
};
-static struct snmp_cnv snmp_conv [] =
-{
+static const struct snmp_cnv snmp_conv[] = {
{ASN1_UNI, ASN1_NUL, SNMP_NULL},
{ASN1_UNI, ASN1_INT, SNMP_INTEGER},
{ASN1_UNI, ASN1_OTS, SNMP_OCTETSTR},
@@ -644,7 +643,7 @@ static unsigned char snmp_tag_cls2syntax(unsigned int tag,
unsigned int cls,
unsigned short *syntax)
{
- struct snmp_cnv *cnv;
+ const struct snmp_cnv *cnv;
cnv = snmp_conv;
@@ -904,7 +903,7 @@ static inline void mangle_address(unsigned char *begin,
u_int32_t old;
if (debug)
- memcpy(&old, (unsigned char *)addr, sizeof(old));
+ memcpy(&old, addr, sizeof(old));
*addr = map->to;
@@ -999,7 +998,7 @@ err_id_free:
*
*****************************************************************************/
-static void hex_dump(unsigned char *buf, size_t len)
+static void hex_dump(const unsigned char *buf, size_t len)
{
size_t i;
@@ -1080,7 +1079,7 @@ static int snmp_parse_mangle(unsigned char *msg,
if (cls != ASN1_CTX || con != ASN1_CON)
return 0;
if (debug > 1) {
- unsigned char *pdus[] = {
+ static const unsigned char *const pdus[] = {
[SNMP_PDU_GET] = "get",
[SNMP_PDU_NEXT] = "get-next",
[SNMP_PDU_RESPONSE] = "response",
@@ -1232,8 +1231,8 @@ static int help(struct sk_buff *skb, unsigned int protoff,
{
int dir = CTINFO2DIR(ctinfo);
unsigned int ret;
- struct iphdr *iph = ip_hdr(skb);
- struct udphdr *udph = (struct udphdr *)((u_int32_t *)iph + iph->ihl);
+ const struct iphdr *iph = ip_hdr(skb);
+ const struct udphdr *udph = (struct udphdr *)((__be32 *)iph + iph->ihl);
/* SNMP replies and originating SNMP traps get mangled */
if (udph->source == htons(SNMP_PORT) && dir != IP_CT_DIR_REPLY)
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 99b2c78..9fba42d 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -30,8 +30,8 @@
#ifdef CONFIG_XFRM
static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
{
- struct nf_conn *ct;
- struct nf_conntrack_tuple *t;
+ const struct nf_conn *ct;
+ const struct nf_conntrack_tuple *t;
enum ip_conntrack_info ctinfo;
enum ip_conntrack_dir dir;
unsigned long statusbit;
@@ -189,7 +189,7 @@ nf_nat_out(unsigned int hooknum,
int (*okfn)(struct sk_buff *))
{
#ifdef CONFIG_XFRM
- struct nf_conn *ct;
+ const struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
#endif
unsigned int ret;
@@ -223,7 +223,7 @@ nf_nat_local_fn(unsigned int hooknum,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
- struct nf_conn *ct;
+ const struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
unsigned int ret;
--
1.5.4.4
--
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