[NETFILTER]: nf_conntrack: add tuplehash l3num/protonum accessors
Patrick McHardy [Mon, 14 Apr 2008 09:15:52 +0000 (11:15 +0200)]
Add accessors for l3num and protonum and get rid of some overly long
expressions.

Signed-off-by: Patrick McHardy <kaber@trash.net>

16 files changed:
include/net/netfilter/nf_conntrack.h
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
net/netfilter/nf_conntrack_amanda.c
net/netfilter/nf_conntrack_core.c
net/netfilter/nf_conntrack_ftp.c
net/netfilter/nf_conntrack_h323_main.c
net/netfilter/nf_conntrack_netlink.c
net/netfilter/nf_conntrack_pptp.c
net/netfilter/nf_conntrack_proto.c
net/netfilter/nf_conntrack_proto_dccp.c
net/netfilter/nf_conntrack_sane.c
net/netfilter/nf_conntrack_sip.c
net/netfilter/nf_conntrack_standalone.c
net/netfilter/nf_conntrack_tftp.c
net/netfilter/xt_connlimit.c
net/netfilter/xt_conntrack.c

index 4a0496a..26e6a6e 100644 (file)
@@ -140,6 +140,16 @@ nf_ct_tuplehash_to_ctrack(const struct nf_conntrack_tuple_hash *hash)
                            tuplehash[hash->tuple.dst.dir]);
 }
 
+static inline u_int16_t nf_ct_l3num(const struct nf_conn *ct)
+{
+       return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
+}
+
+static inline u_int8_t nf_ct_protonum(const struct nf_conn *ct)
+{
+       return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
+}
+
 /* get master conntrack via master expectation */
 #define master_ct(conntr) (conntr->master)
 
index e60b885..40a46d4 100644 (file)
@@ -106,21 +106,16 @@ static int ct_seq_show(struct seq_file *s, void *v)
        /* we only want to print DIR_ORIGINAL */
        if (NF_CT_DIRECTION(hash))
                return 0;
-       if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num != AF_INET)
+       if (nf_ct_l3num(ct) != AF_INET)
                return 0;
 
-       l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                      .tuple.src.l3num);
+       l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
        NF_CT_ASSERT(l3proto);
-       l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                      .tuple.src.l3num,
-                                      ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                      .tuple.dst.protonum);
+       l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
        NF_CT_ASSERT(l4proto);
 
        if (seq_printf(s, "%-8s %u %ld ",
-                     l4proto->name,
-                     ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
+                     l4proto->name, nf_ct_protonum(ct),
                      timer_pending(&ct->timeout)
                      ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
                return -ENOSPC;
index ddfac99..38aedee 100644 (file)
@@ -91,7 +91,6 @@ static int amanda_help(struct sk_buff *skb,
        char pbuf[sizeof("65535")], *tmp;
        u_int16_t len;
        __be16 port;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        int ret = NF_ACCEPT;
        typeof(nf_nat_amanda_hook) nf_nat_amanda;
 
@@ -148,7 +147,8 @@ static int amanda_help(struct sk_buff *skb,
                        goto out;
                }
                tuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
-               nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, family,
+               nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
+                                 nf_ct_l3num(ct),
                                  &tuple->src.u3, &tuple->dst.u3,
                                  IPPROTO_TCP, NULL, &port);
 
index b77eb56..21ab0c3 100644 (file)
@@ -194,8 +194,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
         * destroy_conntrack() MUST NOT be called with a write lock
         * to nf_conntrack_lock!!! -HW */
        rcu_read_lock();
-       l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.l3num,
-                                      ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.protonum);
+       l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
        if (l4proto && l4proto->destroy)
                l4proto->destroy(ct);
 
index 87ca39b..bb20672 100644 (file)
@@ -406,7 +406,7 @@ static int help(struct sk_buff *skb,
 
        /* Initialize IP/IPv6 addr to expected address (it's not mentioned
           in EPSV responses) */
-       cmd.l3num = ct->tuplehash[dir].tuple.src.l3num;
+       cmd.l3num = nf_ct_l3num(ct);
        memcpy(cmd.u3.all, &ct->tuplehash[dir].tuple.src.u3.all,
               sizeof(cmd.u3.all));
 
@@ -453,7 +453,7 @@ static int help(struct sk_buff *skb,
        daddr = &ct->tuplehash[!dir].tuple.dst.u3;
 
        /* Update the ftp info */
-       if ((cmd.l3num == ct->tuplehash[dir].tuple.src.l3num) &&
+       if ((cmd.l3num == nf_ct_l3num(ct)) &&
            memcmp(&cmd.u3.all, &ct->tuplehash[dir].tuple.src.u3.all,
                     sizeof(cmd.u3.all))) {
                /* Enrico Scholz's passive FTP to partially RNAT'd ftp
index 505052d..c3f8709 100644 (file)
@@ -218,7 +218,6 @@ static int get_h245_addr(struct nf_conn *ct, const unsigned char *data,
                         union nf_inet_addr *addr, __be16 *port)
 {
        const unsigned char *p;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        int len;
 
        if (taddr->choice != eH245_TransportAddress_unicastAddress)
@@ -226,13 +225,13 @@ static int get_h245_addr(struct nf_conn *ct, const unsigned char *data,
 
        switch (taddr->unicastAddress.choice) {
        case eUnicastAddress_iPAddress:
-               if (family != AF_INET)
+               if (nf_ct_l3num(ct) != AF_INET)
                        return 0;
                p = data + taddr->unicastAddress.iPAddress.network;
                len = 4;
                break;
        case eUnicastAddress_iP6Address:
-               if (family != AF_INET6)
+               if (nf_ct_l3num(ct) != AF_INET6)
                        return 0;
                p = data + taddr->unicastAddress.iP6Address.network;
                len = 16;
@@ -277,8 +276,7 @@ static int expect_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct,
        /* Create expect for RTP */
        if ((rtp_exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(rtp_exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(rtp_exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3,
                          &ct->tuplehash[!dir].tuple.dst.u3,
                          IPPROTO_UDP, NULL, &rtp_port);
@@ -288,8 +286,7 @@ static int expect_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct,
                nf_ct_expect_put(rtp_exp);
                return -1;
        }
-       nf_ct_expect_init(rtcp_exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(rtcp_exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3,
                          &ct->tuplehash[!dir].tuple.dst.u3,
                          IPPROTO_UDP, NULL, &rtcp_port);
@@ -346,8 +343,7 @@ static int expect_t120(struct sk_buff *skb,
        /* Create expect for T.120 connections */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3,
                          &ct->tuplehash[!dir].tuple.dst.u3,
                          IPPROTO_TCP, NULL, &port);
@@ -634,18 +630,17 @@ int get_h225_addr(struct nf_conn *ct, unsigned char *data,
                  union nf_inet_addr *addr, __be16 *port)
 {
        const unsigned char *p;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        int len;
 
        switch (taddr->choice) {
        case eTransportAddress_ipAddress:
-               if (family != AF_INET)
+               if (nf_ct_l3num(ct) != AF_INET)
                        return 0;
                p = data + taddr->ipAddress.ip;
                len = 4;
                break;
        case eTransportAddress_ip6Address:
-               if (family != AF_INET6)
+               if (nf_ct_l3num(ct) != AF_INET6)
                        return 0;
                p = data + taddr->ip6Address.ip;
                len = 16;
@@ -683,8 +678,7 @@ static int expect_h245(struct sk_buff *skb, struct nf_conn *ct,
        /* Create expect for h245 connection */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3,
                          &ct->tuplehash[!dir].tuple.dst.u3,
                          IPPROTO_TCP, NULL, &port);
@@ -792,7 +786,7 @@ static int expect_callforwarding(struct sk_buff *skb,
         * we don't need to track the second call */
        if (callforward_filter &&
            callforward_do_filter(&addr, &ct->tuplehash[!dir].tuple.src.u3,
-                                 ct->tuplehash[!dir].tuple.src.l3num)) {
+                                 nf_ct_l3num(ct))) {
                pr_debug("nf_ct_q931: Call Forwarding not tracked\n");
                return 0;
        }
@@ -800,8 +794,7 @@ static int expect_callforwarding(struct sk_buff *skb,
        /* Create expect for the second call leg */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3, &addr,
                          IPPROTO_TCP, NULL, &port);
        exp->helper = nf_conntrack_helper_q931;
@@ -1272,8 +1265,7 @@ static int expect_q931(struct sk_buff *skb, struct nf_conn *ct,
        /* Create expect for Q.931 */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          gkrouted_only ? /* only accept calls from GK? */
                                &ct->tuplehash[!dir].tuple.src.u3 : NULL,
                          &ct->tuplehash[!dir].tuple.dst.u3,
@@ -1344,8 +1336,7 @@ static int process_gcf(struct sk_buff *skb, struct nf_conn *ct,
        /* Need new expect */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3, &addr,
                          IPPROTO_UDP, NULL, &port);
        exp->helper = nf_conntrack_helper_ras;
@@ -1549,8 +1540,7 @@ static int process_acf(struct sk_buff *skb, struct nf_conn *ct,
        /* Need new expect */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3, &addr,
                          IPPROTO_TCP, NULL, &port);
        exp->flags = NF_CT_EXPECT_PERMANENT;
@@ -1603,8 +1593,7 @@ static int process_lcf(struct sk_buff *skb, struct nf_conn *ct,
        /* Need new expect for call signal */
        if ((exp = nf_ct_expect_alloc(ct)) == NULL)
                return -1;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[!dir].tuple.src.l3num,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &ct->tuplehash[!dir].tuple.src.u3, &addr,
                          IPPROTO_TCP, NULL, &port);
        exp->flags = NF_CT_EXPECT_PERMANENT;
index 79d5ecd..16774ec 100644 (file)
@@ -145,10 +145,11 @@ nla_put_failure:
 static inline int
 ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
 {
-       struct nf_conntrack_l4proto *l4proto = nf_ct_l4proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
+       struct nf_conntrack_l4proto *l4proto;
        struct nlattr *nest_proto;
        int ret;
 
+       l4proto = nf_ct_l4proto_find_get(nf_ct_l3num(ct), nf_ct_protonum(ct));
        if (!l4proto->to_nlattr) {
                nf_ct_l4proto_put(l4proto);
                return 0;
@@ -368,8 +369,7 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
        nfmsg  = NLMSG_DATA(nlh);
 
        nlh->nlmsg_flags    = (nowait && pid) ? NLM_F_MULTI : 0;
-       nfmsg->nfgen_family =
-               ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
+       nfmsg->nfgen_family = nf_ct_l3num(ct);
        nfmsg->version      = NFNETLINK_V0;
        nfmsg->res_id       = 0;
 
@@ -454,7 +454,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
        nfmsg = NLMSG_DATA(nlh);
 
        nlh->nlmsg_flags    = flags;
-       nfmsg->nfgen_family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
+       nfmsg->nfgen_family = nf_ct_l3num(ct);
        nfmsg->version  = NFNETLINK_V0;
        nfmsg->res_id   = 0;
 
@@ -535,8 +535,6 @@ static int ctnetlink_done(struct netlink_callback *cb)
        return 0;
 }
 
-#define L3PROTO(ct) (ct)->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num
-
 static int
 ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
 {
@@ -558,7 +556,7 @@ restart:
                        /* Dump entries of a given L3 protocol number.
                         * If it is not specified, ie. l3proto == 0,
                         * then dump everything. */
-                       if (l3proto && L3PROTO(ct) != l3proto)
+                       if (l3proto && nf_ct_l3num(ct) != l3proto)
                                continue;
                        if (cb->args[1]) {
                                if (ct != last)
@@ -704,7 +702,7 @@ static int nfnetlink_parse_nat_proto(struct nlattr *attr,
        if (err < 0)
                return err;
 
-       npt = nf_nat_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
+       npt = nf_nat_proto_find_get(nf_ct_protonum(ct));
        if (npt->nlattr_to_range)
                err = npt->nlattr_to_range(tb, range);
        nf_nat_proto_put(npt);
@@ -1001,14 +999,11 @@ ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[])
 {
        struct nlattr *tb[CTA_PROTOINFO_MAX+1], *attr = cda[CTA_PROTOINFO];
        struct nf_conntrack_l4proto *l4proto;
-       u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
-       u_int16_t l3num = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        int err = 0;
 
        nla_parse_nested(tb, CTA_PROTOINFO_MAX, attr, NULL);
 
-       l4proto = nf_ct_l4proto_find_get(l3num, npt);
-
+       l4proto = nf_ct_l4proto_find_get(nf_ct_l3num(ct), nf_ct_protonum(ct));
        if (l4proto->from_nlattr)
                err = l4proto->from_nlattr(tb, ct);
        nf_ct_l4proto_put(l4proto);
index 8fd8347..4793cc0 100644 (file)
@@ -209,7 +209,7 @@ static int exp_gre(struct nf_conn *ct, __be16 callid, __be16 peer_callid)
        /* original direction, PNS->PAC */
        dir = IP_CT_DIR_ORIGINAL;
        nf_ct_expect_init(exp_orig, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[dir].tuple.src.l3num,
+                         nf_ct_l3num(ct),
                          &ct->tuplehash[dir].tuple.src.u3,
                          &ct->tuplehash[dir].tuple.dst.u3,
                          IPPROTO_GRE, &peer_callid, &callid);
@@ -218,7 +218,7 @@ static int exp_gre(struct nf_conn *ct, __be16 callid, __be16 peer_callid)
        /* reply direction, PAC->PNS */
        dir = IP_CT_DIR_REPLY;
        nf_ct_expect_init(exp_reply, NF_CT_EXPECT_CLASS_DEFAULT,
-                         ct->tuplehash[dir].tuple.src.l3num,
+                         nf_ct_l3num(ct),
                          &ct->tuplehash[dir].tuple.src.u3,
                          &ct->tuplehash[dir].tuple.dst.u3,
                          IPPROTO_GRE, &callid, &peer_callid);
index 8595b59..a49fc93 100644 (file)
@@ -146,18 +146,15 @@ EXPORT_SYMBOL_GPL(nf_ct_l3proto_module_put);
 
 static int kill_l3proto(struct nf_conn *i, void *data)
 {
-       return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num ==
-                       ((struct nf_conntrack_l3proto *)data)->l3proto);
+       return nf_ct_l3num(i) == ((struct nf_conntrack_l3proto *)data)->l3proto;
 }
 
 static int kill_l4proto(struct nf_conn *i, void *data)
 {
        struct nf_conntrack_l4proto *l4proto;
        l4proto = (struct nf_conntrack_l4proto *)data;
-       return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum ==
-                       l4proto->l4proto) &&
-              (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num ==
-                       l4proto->l3proto);
+       return nf_ct_protonum(i) == l4proto->l4proto &&
+              nf_ct_l3num(i) == l4proto->l3proto;
 }
 
 static int nf_ct_l3proto_register_sysctl(struct nf_conntrack_l3proto *l3proto)
index db88c5b..9376dcd 100644 (file)
@@ -418,7 +418,6 @@ static int dccp_invert_tuple(struct nf_conntrack_tuple *inv,
 static int dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
                    unsigned int dataoff)
 {
-       int pf = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        struct dccp_hdr _dh, *dh;
        const char *msg;
        u_int8_t state;
@@ -447,7 +446,7 @@ static int dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
 
 out_invalid:
        if (LOG_INVALID(IPPROTO_DCCP))
-               nf_log_packet(pf, 0, skb, NULL, NULL, NULL, msg);
+               nf_log_packet(nf_ct_l3num(ct), 0, skb, NULL, NULL, NULL, msg);
        return 0;
 }
 
index 7542e25..c3d5e84 100644 (file)
@@ -72,7 +72,6 @@ static int help(struct sk_buff *skb,
        struct nf_conntrack_tuple *tuple;
        struct sane_request *req;
        struct sane_reply_net_start *reply;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
 
        ct_sane_info = &nfct_help(ct)->help.ct_sane_info;
        /* Until there's been traffic both ways, don't look in packets. */
@@ -143,7 +142,7 @@ static int help(struct sk_buff *skb,
        }
 
        tuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
-       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, family,
+       nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, nf_ct_l3num(ct),
                          &tuple->src.u3, &tuple->dst.u3,
                          IPPROTO_TCP, NULL, &reply->port);
 
index f3915f8..65b3ba5 100644 (file)
@@ -142,11 +142,10 @@ static int parse_addr(const struct nf_conn *ct, const char *cp,
                       const char *limit)
 {
        const char *end;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        int ret = 0;
 
        memset(addr, 0, sizeof(*addr));
-       switch (family) {
+       switch (nf_ct_l3num(ct)) {
        case AF_INET:
                ret = in4_pton(cp, limit - cp, (u8 *)&addr->ip, -1, &end);
                break;
@@ -740,7 +739,6 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb,
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
        union nf_inet_addr *saddr;
        struct nf_conntrack_tuple tuple;
-       int family = ct->tuplehash[!dir].tuple.src.l3num;
        int direct_rtp = 0, skip_expect = 0, ret = NF_DROP;
        u_int16_t base_port;
        __be16 rtp_port, rtcp_port;
@@ -770,7 +768,7 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb,
        memset(&tuple, 0, sizeof(tuple));
        if (saddr)
                tuple.src.u3 = *saddr;
-       tuple.src.l3num         = family;
+       tuple.src.l3num         = nf_ct_l3num(ct);
        tuple.dst.protonum      = IPPROTO_UDP;
        tuple.dst.u3            = *daddr;
        tuple.dst.u.udp.port    = port;
@@ -815,13 +813,13 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb,
        rtp_exp = nf_ct_expect_alloc(ct);
        if (rtp_exp == NULL)
                goto err1;
-       nf_ct_expect_init(rtp_exp, class, family, saddr, daddr,
+       nf_ct_expect_init(rtp_exp, class, nf_ct_l3num(ct), saddr, daddr,
                          IPPROTO_UDP, NULL, &rtp_port);
 
        rtcp_exp = nf_ct_expect_alloc(ct);
        if (rtcp_exp == NULL)
                goto err2;
-       nf_ct_expect_init(rtcp_exp, class, family, saddr, daddr,
+       nf_ct_expect_init(rtcp_exp, class, nf_ct_l3num(ct), saddr, daddr,
                          IPPROTO_UDP, NULL, &rtcp_port);
 
        nf_nat_sdp_media = rcu_dereference(nf_nat_sdp_media_hook);
@@ -871,7 +869,6 @@ static int process_sdp(struct sk_buff *skb,
 {
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        unsigned int matchoff, matchlen;
        unsigned int mediaoff, medialen;
        unsigned int sdpoff;
@@ -886,8 +883,8 @@ static int process_sdp(struct sk_buff *skb,
        typeof(nf_nat_sdp_session_hook) nf_nat_sdp_session;
 
        nf_nat_sdp_addr = rcu_dereference(nf_nat_sdp_addr_hook);
-       c_hdr = family == AF_INET ? SDP_HDR_CONNECTION_IP4 :
-                                   SDP_HDR_CONNECTION_IP6;
+       c_hdr = nf_ct_l3num(ct) == AF_INET ? SDP_HDR_CONNECTION_IP4 :
+                                            SDP_HDR_CONNECTION_IP6;
 
        /* Find beginning of session description */
        if (ct_sip_get_sdp_header(ct, *dptr, 0, *datalen,
@@ -1034,7 +1031,6 @@ static int process_register_request(struct sk_buff *skb,
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        struct nf_conn_help *help = nfct_help(ct);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        unsigned int matchoff, matchlen;
        struct nf_conntrack_expect *exp;
        union nf_inet_addr *saddr, daddr;
@@ -1089,8 +1085,8 @@ static int process_register_request(struct sk_buff *skb,
        if (sip_direct_signalling)
                saddr = &ct->tuplehash[!dir].tuple.src.u3;
 
-       nf_ct_expect_init(exp, SIP_EXPECT_SIGNALLING, family, saddr, &daddr,
-                         IPPROTO_UDP, NULL, &port);
+       nf_ct_expect_init(exp, SIP_EXPECT_SIGNALLING, nf_ct_l3num(ct),
+                         saddr, &daddr, IPPROTO_UDP, NULL, &port);
        exp->timeout.expires = sip_timeout * HZ;
        exp->helper = nfct_help(ct)->helper;
        exp->flags = NF_CT_EXPECT_PERMANENT | NF_CT_EXPECT_INACTIVE;
index 01d1f7e..b59871f 100644 (file)
@@ -127,21 +127,14 @@ static int ct_seq_show(struct seq_file *s, void *v)
        if (NF_CT_DIRECTION(hash))
                return 0;
 
-       l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                      .tuple.src.l3num);
-
+       l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
        NF_CT_ASSERT(l3proto);
-       l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                  .tuple.src.l3num,
-                                  ct->tuplehash[IP_CT_DIR_ORIGINAL]
-                                  .tuple.dst.protonum);
+       l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
        NF_CT_ASSERT(l4proto);
 
        if (seq_printf(s, "%-8s %u %-8s %u %ld ",
-                      l3proto->name,
-                      ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num,
-                      l4proto->name,
-                      ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
+                      l3proto->name, nf_ct_l3num(ct),
+                      l4proto->name, nf_ct_protonum(ct),
                       timer_pending(&ct->timeout)
                       ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
                return -ENOSPC;
index a28341b..ea5ff49 100644 (file)
@@ -44,7 +44,6 @@ static int tftp_help(struct sk_buff *skb,
        struct nf_conntrack_expect *exp;
        struct nf_conntrack_tuple *tuple;
        unsigned int ret = NF_ACCEPT;
-       int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
        typeof(nf_nat_tftp_hook) nf_nat_tftp;
 
        tfh = skb_header_pointer(skb, protoff + sizeof(struct udphdr),
@@ -63,7 +62,8 @@ static int tftp_help(struct sk_buff *skb,
                if (exp == NULL)
                        return NF_DROP;
                tuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-               nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, family,
+               nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
+                                 nf_ct_l3num(ct),
                                  &tuple->src.u3, &tuple->dst.u3,
                                  IPPROTO_UDP, NULL, &tuple->dst.u.udp.port);
 
index 0ca9fe9..2e89a00 100644 (file)
@@ -72,9 +72,7 @@ connlimit_iphash6(const union nf_inet_addr *addr,
 
 static inline bool already_closed(const struct nf_conn *conn)
 {
-       u_int16_t proto = conn->tuplehash[0].tuple.dst.protonum;
-
-       if (proto == IPPROTO_TCP)
+       if (nf_ct_protonum(conn) == IPPROTO_TCP)
                return conn->proto.tcp.state == TCP_CONNTRACK_TIME_WAIT;
        else
                return 0;
index 0c50b28..d61412f 100644 (file)
@@ -65,7 +65,7 @@ conntrack_mt_v0(const struct sk_buff *skb, const struct net_device *in,
        }
 
        if (sinfo->flags & XT_CONNTRACK_PROTO &&
-           FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum !=
+           FWINV(nf_ct_protonum(ct) !=
                  sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum,
                  XT_CONNTRACK_PROTO))
                return false;
@@ -174,7 +174,7 @@ ct_proto_port_check(const struct xt_conntrack_mtinfo1 *info,
 
        tuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
        if ((info->match_flags & XT_CONNTRACK_PROTO) &&
-           (tuple->dst.protonum == info->l4proto) ^
+           (nf_ct_protonum(ct) == info->l4proto) ^
            !(info->invert_flags & XT_CONNTRACK_PROTO))
                return false;