netfilter: xtables: remove xt_multiport revision 0

Superseded by xt_multiport revision 1 (introduction already predates
linux.git).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/net/netfilter/xt_multiport.c b/net/netfilter/xt_multiport.c
index b446738..83b77ce 100644 (file)
--- a/net/netfilter/xt_multiport.c
+++ b/net/netfilter/xt_multiport.c
@@ -26,23 +26,6 @@ MODULE_DESCRIPTION("Xtables: multiple port matching for TCP, UDP, UDP-Lite, SCTP
 MODULE_ALIAS("ipt_multiport");
 MODULE_ALIAS("ip6t_multiport");
 
-/* Returns 1 if the port is matched by the test, 0 otherwise. */
-static inline bool
-ports_match_v0(const u_int16_t *portlist, enum xt_multiport_flags flags,
-              u_int8_t count, u_int16_t src, u_int16_t dst)
-{
-       unsigned int i;
-       for (i = 0; i < count; i++) {
-               if (flags != XT_MULTIPORT_DESTINATION && portlist[i] == src)
-                       return true;
-
-               if (flags != XT_MULTIPORT_SOURCE && portlist[i] == dst)
-                       return true;
-       }
-
-       return false;
-}
-
 /* Returns 1 if the port is matched by the test, 0 otherwise. */
 static inline bool
 ports_match_v1(const struct xt_multiport_v1 *minfo,
@@ -88,30 +71,6 @@ ports_match_v1(const struct xt_multiport_v1 *minfo,
        return minfo->invert;
 }
 
-static bool
-multiport_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
-{
-       const __be16 *pptr;
-       __be16 _ports[2];
-       const struct xt_multiport *multiinfo = par->matchinfo;
-
-       if (par->fragoff != 0)
-               return false;
-
-       pptr = skb_header_pointer(skb, par->thoff, sizeof(_ports), _ports);
-       if (pptr == NULL) {
-               /* We've been asked to examine this packet, and we
-                * can't.  Hence, no choice but to drop.
-                */
-               pr_debug("Dropping evil offset=0 tinygram.\n");
-               *par->hotdrop = true;
-               return false;
-       }
-
-       return ports_match_v0(multiinfo->ports, multiinfo->flags,
-              multiinfo->count, ntohs(pptr[0]), ntohs(pptr[1]));
-}
-
 static bool
 multiport_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
@@ -152,15 +111,6 @@ check(u_int16_t proto,
                && count <= XT_MULTI_PORTS;
 }
 
-static int multiport_mt_check_v0(const struct xt_mtchk_param *par)
-{
-       const struct ipt_ip *ip = par->entryinfo;
-       const struct xt_multiport *multiinfo = par->matchinfo;
-
-       return check(ip->proto, ip->invflags, multiinfo->flags,
-                    multiinfo->count);
-}
-
 static int multiport_mt_check(const struct xt_mtchk_param *par)
 {
        const struct ipt_ip *ip = par->entryinfo;
@@ -170,15 +120,6 @@ static int multiport_mt_check(const struct xt_mtchk_param *par)
                     multiinfo->count);
 }
 
-static int multiport_mt6_check_v0(const struct xt_mtchk_param *par)
-{
-       const struct ip6t_ip6 *ip = par->entryinfo;
-       const struct xt_multiport *multiinfo = par->matchinfo;
-
-       return check(ip->proto, ip->invflags, multiinfo->flags,
-                    multiinfo->count);
-}
-
 static int multiport_mt6_check(const struct xt_mtchk_param *par)
 {
        const struct ip6t_ip6 *ip = par->entryinfo;
@@ -189,15 +130,6 @@ static int multiport_mt6_check(const struct xt_mtchk_param *par)
 }
 
 static struct xt_match multiport_mt_reg[] __read_mostly = {
-       {
-               .name           = "multiport",
-               .family         = NFPROTO_IPV4,
-               .revision       = 0,
-               .checkentry     = multiport_mt_check_v0,
-               .match          = multiport_mt_v0,
-               .matchsize      = sizeof(struct xt_multiport),
-               .me             = THIS_MODULE,
-       },
        {
                .name           = "multiport",
                .family         = NFPROTO_IPV4,
@@ -207,15 +139,6 @@ static struct xt_match multiport_mt_reg[] __read_mostly = {
                .matchsize      = sizeof(struct xt_multiport_v1),
                .me             = THIS_MODULE,
        },
-       {
-               .name           = "multiport",
-               .family         = NFPROTO_IPV6,
-               .revision       = 0,
-               .checkentry     = multiport_mt6_check_v0,
-               .match          = multiport_mt_v0,
-               .matchsize      = sizeof(struct xt_multiport),
-               .me             = THIS_MODULE,
-       },
        {
                .name           = "multiport",
                .family         = NFPROTO_IPV6,