[NETFILTER]: nf_{conntrack,nat}_sip: annotate SIP helper with const

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 18 insertions, 17 deletions

diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index 9fff19779bd5..8e5ce1ca7bfc 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -30,9 +30,9 @@ extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
                                        struct nf_conntrack_expect *exp,
                                        const char *dptr);
 
-extern int ct_sip_get_info(struct nf_conn *ct, const char *dptr, size_t dlen,
-                           unsigned int *matchoff, unsigned int *matchlen,
-                           enum sip_header_pos pos);
+extern int ct_sip_get_info(const struct nf_conn *ct, const char *dptr,
+                           size_t dlen, unsigned int *matchoff,
+                           unsigned int *matchlen, enum sip_header_pos pos);
 extern int ct_sip_lnlen(const char *line, const char *limit);
 extern const char *ct_sip_search(const char *needle, const char *haystack,
                                  size_t needle_len, size_t haystack_len,
diff --git a/net/ipv4/netfilter/nf_nat_sip.c b/net/ipv4/netfilter/nf_nat_sip.c
index 606a170bf4ca..b4c8d4968bb2 100644
--- a/net/ipv4/netfilter/nf_nat_sip.c
+++ b/net/ipv4/netfilter/nf_nat_sip.c
@@ -35,9 +35,9 @@ struct addr_map {
         } addr[IP_CT_DIR_MAX];
 };
 
-static void addr_map_init(struct nf_conn *ct, struct addr_map *map)
+static void addr_map_init(const struct nf_conn *ct, struct addr_map *map)
 {
-        struct nf_conntrack_tuple *t;
+        const struct nf_conntrack_tuple *t;
         enum ip_conntrack_dir dir;
         unsigned int n;
 
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 775f7d468105..c521c891d351 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -48,10 +48,10 @@ unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
                                 const char *dptr) __read_mostly;
 EXPORT_SYMBOL_GPL(nf_nat_sdp_hook);
 
-static int digits_len(struct nf_conn *, const char *, const char *, int *);
-static int epaddr_len(struct nf_conn *, const char *, const char *, int *);
-static int skp_digits_len(struct nf_conn *, const char *, const char *, int *);
-static int skp_epaddr_len(struct nf_conn *, const char *, const char *, int *);
+static int digits_len(const struct nf_conn *, const char *, const char *, int *);
+static int epaddr_len(const struct nf_conn *, const char *, const char *, int *);
+static int skp_digits_len(const struct nf_conn *, const char *, const char *, int *);
+static int skp_epaddr_len(const struct nf_conn *, const char *, const char *, int *);
 
 struct sip_header_nfo {
         const char      *lname;
@@ -61,7 +61,7 @@ struct sip_header_nfo {
         size_t          snlen;
         size_t          ln_strlen;
         int             case_sensitive;
-        int             (*match_len)(struct nf_conn *, const char *,
+        int             (*match_len)(const struct nf_conn *, const char *,
                                      const char *, int *);
 };
 
@@ -225,7 +225,7 @@ const char *ct_sip_search(const char *needle, const char *haystack,
 }
 EXPORT_SYMBOL_GPL(ct_sip_search);
 
-static int digits_len(struct nf_conn *ct, const char *dptr,
+static int digits_len(const struct nf_conn *ct, const char *dptr,
                       const char *limit, int *shift)
 {
         int len = 0;
@@ -237,7 +237,7 @@ static int digits_len(struct nf_conn *ct, const char *dptr,
 }
 
 /* get digits length, skipping blank spaces. */
-static int skp_digits_len(struct nf_conn *ct, const char *dptr,
+static int skp_digits_len(const struct nf_conn *ct, const char *dptr,
                           const char *limit, int *shift)
 {
         for (; dptr <= limit && *dptr == ' '; dptr++)
@@ -246,8 +246,9 @@ static int skp_digits_len(struct nf_conn *ct, const char *dptr,
         return digits_len(ct, dptr, limit, shift);
 }
 
-static int parse_addr(struct nf_conn *ct, const char *cp, const char **endp,
-                      union nf_inet_addr *addr, const char *limit)
+static int parse_addr(const struct nf_conn *ct, const char *cp,
+                      const char **endp, union nf_inet_addr *addr,
+                      const char *limit)
 {
         const char *end;
         int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
@@ -272,7 +273,7 @@ static int parse_addr(struct nf_conn *ct, const char *cp, const char **endp,
 }
 
 /* skip ip address. returns its length. */
-static int epaddr_len(struct nf_conn *ct, const char *dptr,
+static int epaddr_len(const struct nf_conn *ct, const char *dptr,
                       const char *limit, int *shift)
 {
         union nf_inet_addr addr;
@@ -292,7 +293,7 @@ static int epaddr_len(struct nf_conn *ct, const char *dptr,
 }
 
 /* get address length, skiping user info. */
-static int skp_epaddr_len(struct nf_conn *ct, const char *dptr,
+static int skp_epaddr_len(const struct nf_conn *ct, const char *dptr,
                           const char *limit, int *shift)
 {
         const char *start = dptr;
@@ -319,7 +320,7 @@ static int skp_epaddr_len(struct nf_conn *ct, const char *dptr,
 }
 
 /* Returns 0 if not found, -1 error parsing. */
-int ct_sip_get_info(struct nf_conn *ct,
+int ct_sip_get_info(const struct nf_conn *ct,
                     const char *dptr, size_t dlen,
                     unsigned int *matchoff,
                     unsigned int *matchlen,