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[PATCHv3 12/24] IPVS: Extend functions for getting/creating connections

To: netdev@xxxxxxxxxxxxxxx, lvs-devel@xxxxxxxxxxxxxxx
Subject: [PATCHv3 12/24] IPVS: Extend functions for getting/creating connections
Cc: horms@xxxxxxxxxxxx, kaber@xxxxxxxxx, vbusam@xxxxxxxxxx, Julius Volz <juliusv@xxxxxxxxxx>
From: Julius Volz <juliusv@xxxxxxxxxx>
Date: Tue, 2 Sep 2008 15:55:43 +0200
Extend functions for getting/creating connections and connection
templates for IPv6 support and fix the callers.

Signed-off-by: Julius Volz <juliusv@xxxxxxxxxx>

 8 files changed, 209 insertions(+), 163 deletions(-)

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index c173f1a..2689349 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -642,11 +642,16 @@ enum {
 };
 
 extern struct ip_vs_conn *ip_vs_conn_in_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port);
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port);
+
 extern struct ip_vs_conn *ip_vs_ct_in_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port);
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port);
+
 extern struct ip_vs_conn *ip_vs_conn_out_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port);
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port);
 
 /* put back the conn without restarting its timer */
 static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
@@ -657,8 +662,9 @@ extern void ip_vs_conn_put(struct ip_vs_conn *cp);
 extern void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport);
 
 extern struct ip_vs_conn *
-ip_vs_conn_new(int proto, __be32 caddr, __be16 cport, __be32 vaddr, __be16 
vport,
-              __be32 daddr, __be16 dport, unsigned flags,
+ip_vs_conn_new(int af, int proto, const union nf_inet_addr *caddr, __be16 
cport,
+              const union nf_inet_addr *vaddr, __be16 vport,
+              const union nf_inet_addr *daddr, __be16 dport, unsigned flags,
               struct ip_vs_dest *dest);
 extern void ip_vs_conn_expire_now(struct ip_vs_conn *cp);
 
diff --git a/net/ipv4/ipvs/ip_vs_conn.c b/net/ipv4/ipvs/ip_vs_conn.c
index 639d4bc..15eec28 100644
--- a/net/ipv4/ipvs/ip_vs_conn.c
+++ b/net/ipv4/ipvs/ip_vs_conn.c
@@ -114,9 +114,18 @@ static inline void ct_write_unlock_bh(unsigned key)
 /*
  *     Returns hash value for IPVS connection entry
  */
-static unsigned int ip_vs_conn_hashkey(unsigned proto, __be32 addr, __be16 
port)
+static unsigned int ip_vs_conn_hashkey(int af, unsigned proto,
+                                      const union nf_inet_addr *addr,
+                                      __be16 port)
 {
-       return jhash_3words((__force u32)addr, (__force u32)port, proto, 
ip_vs_conn_rnd)
+#ifdef CONFIG_IP_VS_IPV6
+       if (af == AF_INET6)
+               return jhash_3words(jhash(addr, 16, ip_vs_conn_rnd),
+                                   (__force u32)port, proto, ip_vs_conn_rnd)
+                       & IP_VS_CONN_TAB_MASK;
+#endif
+       return jhash_3words((__force u32)addr->ip, (__force u32)port, proto,
+                           ip_vs_conn_rnd)
                & IP_VS_CONN_TAB_MASK;
 }
 
@@ -131,7 +140,7 @@ static inline int ip_vs_conn_hash(struct ip_vs_conn *cp)
        int ret;
 
        /* Hash by protocol, client address and port */
-       hash = ip_vs_conn_hashkey(cp->protocol, cp->caddr.ip, cp->cport);
+       hash = ip_vs_conn_hashkey(cp->af, cp->protocol, &cp->caddr, cp->cport);
 
        ct_write_lock(hash);
 
@@ -162,7 +171,7 @@ static inline int ip_vs_conn_unhash(struct ip_vs_conn *cp)
        int ret;
 
        /* unhash it and decrease its reference counter */
-       hash = ip_vs_conn_hashkey(cp->protocol, cp->caddr.ip, cp->cport);
+       hash = ip_vs_conn_hashkey(cp->af, cp->protocol, &cp->caddr, cp->cport);
 
        ct_write_lock(hash);
 
@@ -187,18 +196,21 @@ static inline int ip_vs_conn_unhash(struct ip_vs_conn *cp)
  *     d_addr, d_port: pkt dest address (load balancer)
  */
 static inline struct ip_vs_conn *__ip_vs_conn_in_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp;
 
-       hash = ip_vs_conn_hashkey(protocol, s_addr, s_port);
+       hash = ip_vs_conn_hashkey(af, protocol, s_addr, s_port);
 
        ct_read_lock(hash);
 
        list_for_each_entry(cp, &ip_vs_conn_tab[hash], c_list) {
-               if (s_addr == cp->caddr.ip && s_port == cp->cport &&
-                   d_port == cp->vport && d_addr == cp->vaddr.ip &&
+               if (cp->af == af &&
+                   ip_vs_addr_equal(af, s_addr, &cp->caddr) &&
+                   ip_vs_addr_equal(af, d_addr, &cp->vaddr) &&
+                   s_port == cp->cport && d_port == cp->vport &&
                    ((!s_port) ^ (!(cp->flags & IP_VS_CONN_F_NO_CPORT))) &&
                    protocol == cp->protocol) {
                        /* HIT */
@@ -214,37 +226,42 @@ static inline struct ip_vs_conn *__ip_vs_conn_in_get
 }
 
 struct ip_vs_conn *ip_vs_conn_in_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port)
 {
        struct ip_vs_conn *cp;
 
-       cp = __ip_vs_conn_in_get(protocol, s_addr, s_port, d_addr, d_port);
+       cp = __ip_vs_conn_in_get(af, protocol, s_addr, s_port, d_addr, d_port);
        if (!cp && atomic_read(&ip_vs_conn_no_cport_cnt))
-               cp = __ip_vs_conn_in_get(protocol, s_addr, 0, d_addr, d_port);
+               cp = __ip_vs_conn_in_get(af, protocol, s_addr, 0, d_addr,
+                                        d_port);
 
-       IP_VS_DBG(9, "lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
-                 ip_vs_proto_name(protocol),
-                 NIPQUAD(s_addr), ntohs(s_port),
-                 NIPQUAD(d_addr), ntohs(d_port),
-                 cp?"hit":"not hit");
+       IP_VS_DBG_BUF(9, "lookup/in %s %s:%d->%s:%d %s\n",
+                     ip_vs_proto_name(protocol),
+                     IP_VS_DBG_ADDR(af, s_addr), ntohs(s_port),
+                     IP_VS_DBG_ADDR(af, d_addr), ntohs(d_port),
+                     cp ? "hit" : "not hit");
 
        return cp;
 }
 
 /* Get reference to connection template */
 struct ip_vs_conn *ip_vs_ct_in_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp;
 
-       hash = ip_vs_conn_hashkey(protocol, s_addr, s_port);
+       hash = ip_vs_conn_hashkey(af, protocol, s_addr, s_port);
 
        ct_read_lock(hash);
 
        list_for_each_entry(cp, &ip_vs_conn_tab[hash], c_list) {
-               if (s_addr == cp->caddr.ip && s_port == cp->cport &&
-                   d_port == cp->vport && d_addr == cp->vaddr.ip &&
+               if (cp->af == af &&
+                   ip_vs_addr_equal(af, s_addr, &cp->caddr) &&
+                   ip_vs_addr_equal(af, d_addr, &cp->vaddr) &&
+                   s_port == cp->cport && d_port == cp->vport &&
                    cp->flags & IP_VS_CONN_F_TEMPLATE &&
                    protocol == cp->protocol) {
                        /* HIT */
@@ -257,11 +274,11 @@ struct ip_vs_conn *ip_vs_ct_in_get
   out:
        ct_read_unlock(hash);
 
-       IP_VS_DBG(9, "template lookup/in %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d 
%s\n",
-                 ip_vs_proto_name(protocol),
-                 NIPQUAD(s_addr), ntohs(s_port),
-                 NIPQUAD(d_addr), ntohs(d_port),
-                 cp?"hit":"not hit");
+       IP_VS_DBG_BUF(9, "template lookup/in %s %s:%d->%s:%d %s\n",
+                     ip_vs_proto_name(protocol),
+                     IP_VS_DBG_ADDR(af, s_addr), ntohs(s_port),
+                     IP_VS_DBG_ADDR(af, d_addr), ntohs(d_port),
+                     cp ? "hit" : "not hit");
 
        return cp;
 }
@@ -273,7 +290,8 @@ struct ip_vs_conn *ip_vs_ct_in_get
  *     d_addr, d_port: pkt dest address (foreign host)
  */
 struct ip_vs_conn *ip_vs_conn_out_get
-(int protocol, __be32 s_addr, __be16 s_port, __be32 d_addr, __be16 d_port)
+(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
+ const union nf_inet_addr *d_addr, __be16 d_port)
 {
        unsigned hash;
        struct ip_vs_conn *cp, *ret=NULL;
@@ -281,13 +299,15 @@ struct ip_vs_conn *ip_vs_conn_out_get
        /*
         *      Check for "full" addressed entries
         */
-       hash = ip_vs_conn_hashkey(protocol, d_addr, d_port);
+       hash = ip_vs_conn_hashkey(af, protocol, d_addr, d_port);
 
        ct_read_lock(hash);
 
        list_for_each_entry(cp, &ip_vs_conn_tab[hash], c_list) {
-               if (d_addr == cp->caddr.ip && d_port == cp->cport &&
-                   s_port == cp->dport && s_addr == cp->daddr.ip &&
+               if (cp->af == af &&
+                   ip_vs_addr_equal(af, d_addr, &cp->caddr) &&
+                   ip_vs_addr_equal(af, s_addr, &cp->daddr) &&
+                   d_port == cp->cport && s_port == cp->dport &&
                    protocol == cp->protocol) {
                        /* HIT */
                        atomic_inc(&cp->refcnt);
@@ -298,11 +318,11 @@ struct ip_vs_conn *ip_vs_conn_out_get
 
        ct_read_unlock(hash);
 
-       IP_VS_DBG(9, "lookup/out %s %u.%u.%u.%u:%d->%u.%u.%u.%u:%d %s\n",
-                 ip_vs_proto_name(protocol),
-                 NIPQUAD(s_addr), ntohs(s_port),
-                 NIPQUAD(d_addr), ntohs(d_port),
-                 ret?"hit":"not hit");
+       IP_VS_DBG_BUF(9, "lookup/out %s %s:%d->%s:%d %s\n",
+                     ip_vs_proto_name(protocol),
+                     IP_VS_DBG_ADDR(af, s_addr), ntohs(s_port),
+                     IP_VS_DBG_ADDR(af, d_addr), ntohs(d_port),
+                     ret ? "hit" : "not hit");
 
        return ret;
 }
@@ -625,8 +645,9 @@ void ip_vs_conn_expire_now(struct ip_vs_conn *cp)
  *     Create a new connection entry and hash it into the ip_vs_conn_tab
  */
 struct ip_vs_conn *
-ip_vs_conn_new(int proto, __be32 caddr, __be16 cport, __be32 vaddr, __be16 
vport,
-              __be32 daddr, __be16 dport, unsigned flags,
+ip_vs_conn_new(int af, int proto, const union nf_inet_addr *caddr, __be16 
cport,
+              const union nf_inet_addr *vaddr, __be16 vport,
+              const union nf_inet_addr *daddr, __be16 dport, unsigned flags,
               struct ip_vs_dest *dest)
 {
        struct ip_vs_conn *cp;
@@ -640,12 +661,13 @@ ip_vs_conn_new(int proto, __be32 caddr, __be16 cport, 
__be32 vaddr, __be16 vport
 
        INIT_LIST_HEAD(&cp->c_list);
        setup_timer(&cp->timer, ip_vs_conn_expire, (unsigned long)cp);
+       cp->af             = af;
        cp->protocol       = proto;
-       cp->caddr.ip       = caddr;
+       ip_vs_addr_copy(af, &cp->caddr, caddr);
        cp->cport          = cport;
-       cp->vaddr.ip       = vaddr;
+       ip_vs_addr_copy(af, &cp->vaddr, vaddr);
        cp->vport          = vport;
-       cp->daddr.ip       = daddr;
+       ip_vs_addr_copy(af, &cp->daddr, daddr);
        cp->dport          = dport;
        cp->flags          = flags;
        spin_lock_init(&cp->lock);
diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 34aaa14..2d5a433 100644
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -173,19 +173,21 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
                    __be16 ports[2])
 {
        struct ip_vs_conn *cp = NULL;
-       struct iphdr *iph = ip_hdr(skb);
+       struct ip_vs_iphdr iph;
        struct ip_vs_dest *dest;
        struct ip_vs_conn *ct;
        __be16  dport;   /* destination port to forward */
-       __be32  snet;    /* source network of the client, after masking */
+       union nf_inet_addr snet;        /* source network of the client,
+                                          after masking */
+       ip_vs_fill_iphdr(AF_INET, skb_network_header(skb), &iph);
 
        /* Mask saddr with the netmask to adjust template granularity */
-       snet = iph->saddr & svc->netmask;
+       snet.ip = iph.saddr.ip & svc->netmask;
 
        IP_VS_DBG(6, "p-schedule: src %u.%u.%u.%u:%u dest %u.%u.%u.%u:%u "
                  "mnet %u.%u.%u.%u\n",
-                 NIPQUAD(iph->saddr), ntohs(ports[0]),
-                 NIPQUAD(iph->daddr), ntohs(ports[1]),
+                 NIPQUAD(iph.saddr.ip), ntohs(ports[0]),
+                 NIPQUAD(iph.daddr.ip), ntohs(ports[1]),
                  NIPQUAD(snet));
 
        /*
@@ -204,11 +206,11 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
        if (ports[1] == svc->port) {
                /* Check if a template already exists */
                if (svc->port != FTPPORT)
-                       ct = ip_vs_ct_in_get(iph->protocol, snet, 0,
-                                              iph->daddr, ports[1]);
+                       ct = ip_vs_ct_in_get(AF_INET, iph.protocol, &snet, 0,
+                                            &iph.daddr, ports[1]);
                else
-                       ct = ip_vs_ct_in_get(iph->protocol, snet, 0,
-                                              iph->daddr, 0);
+                       ct = ip_vs_ct_in_get(AF_INET, iph.protocol, &snet, 0,
+                                            &iph.daddr, 0);
 
                if (!ct || !ip_vs_check_template(ct)) {
                        /*
@@ -228,18 +230,18 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
                         * for ftp service.
                         */
                        if (svc->port != FTPPORT)
-                               ct = ip_vs_conn_new(iph->protocol,
-                                                   snet, 0,
-                                                   iph->daddr,
+                               ct = ip_vs_conn_new(AF_INET, iph.protocol,
+                                                   &snet, 0,
+                                                   &iph.daddr,
                                                    ports[1],
-                                                   dest->addr.ip, dest->port,
+                                                   &dest->addr, dest->port,
                                                    IP_VS_CONN_F_TEMPLATE,
                                                    dest);
                        else
-                               ct = ip_vs_conn_new(iph->protocol,
-                                                   snet, 0,
-                                                   iph->daddr, 0,
-                                                   dest->addr.ip, 0,
+                               ct = ip_vs_conn_new(AF_INET, iph.protocol,
+                                                   &snet, 0,
+                                                   &iph.daddr, 0,
+                                                   &dest->addr, 0,
                                                    IP_VS_CONN_F_TEMPLATE,
                                                    dest);
                        if (ct == NULL)
@@ -258,12 +260,16 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
                 * fwmark template: <IPPROTO_IP,caddr,0,fwmark,0,daddr,0>
                 * port zero template: <protocol,caddr,0,vaddr,0,daddr,0>
                 */
-               if (svc->fwmark)
-                       ct = ip_vs_ct_in_get(IPPROTO_IP, snet, 0,
-                                              htonl(svc->fwmark), 0);
-               else
-                       ct = ip_vs_ct_in_get(iph->protocol, snet, 0,
-                                              iph->daddr, 0);
+               if (svc->fwmark) {
+                       union nf_inet_addr fwmark = {
+                               .all = { 0, 0, 0, htonl(svc->fwmark) }
+                       };
+
+                       ct = ip_vs_ct_in_get(AF_INET, IPPROTO_IP, &snet, 0,
+                                            &fwmark, 0);
+               } else
+                       ct = ip_vs_ct_in_get(AF_INET, iph.protocol, &snet, 0,
+                                            &iph.daddr, 0);
 
                if (!ct || !ip_vs_check_template(ct)) {
                        /*
@@ -282,18 +288,22 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
                        /*
                         * Create a template according to the service
                         */
-                       if (svc->fwmark)
-                               ct = ip_vs_conn_new(IPPROTO_IP,
-                                                   snet, 0,
-                                                   htonl(svc->fwmark), 0,
-                                                   dest->addr.ip, 0,
+                       if (svc->fwmark) {
+                               union nf_inet_addr fwmark = {
+                                       .all = { 0, 0, 0, htonl(svc->fwmark) }
+                               };
+
+                               ct = ip_vs_conn_new(AF_INET, IPPROTO_IP,
+                                                   &snet, 0,
+                                                   &fwmark, 0,
+                                                   &dest->addr, 0,
                                                    IP_VS_CONN_F_TEMPLATE,
                                                    dest);
-                       else
-                               ct = ip_vs_conn_new(iph->protocol,
-                                                   snet, 0,
-                                                   iph->daddr, 0,
-                                                   dest->addr.ip, 0,
+                       } else
+                               ct = ip_vs_conn_new(AF_INET, iph.protocol,
+                                                   &snet, 0,
+                                                   &iph.daddr, 0,
+                                                   &dest->addr, 0,
                                                    IP_VS_CONN_F_TEMPLATE,
                                                    dest);
                        if (ct == NULL)
@@ -310,10 +320,10 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
        /*
         *    Create a new connection according to the template
         */
-       cp = ip_vs_conn_new(iph->protocol,
-                           iph->saddr, ports[0],
-                           iph->daddr, ports[1],
-                           dest->addr.ip, dport,
+       cp = ip_vs_conn_new(AF_INET, iph.protocol,
+                           &iph.saddr, ports[0],
+                           &iph.daddr, ports[1],
+                           &dest->addr, dport,
                            0,
                            dest);
        if (cp == NULL) {
@@ -342,12 +352,12 @@ struct ip_vs_conn *
 ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 {
        struct ip_vs_conn *cp = NULL;
-       struct iphdr *iph = ip_hdr(skb);
+       struct ip_vs_iphdr iph;
        struct ip_vs_dest *dest;
        __be16 _ports[2], *pptr;
 
-       pptr = skb_header_pointer(skb, iph->ihl*4,
-                                 sizeof(_ports), _ports);
+       ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph);
+       pptr = skb_header_pointer(skb, iph.len, sizeof(_ports), _ports);
        if (pptr == NULL)
                return NULL;
 
@@ -377,10 +387,10 @@ ip_vs_schedule(struct ip_vs_service *svc, const struct 
sk_buff *skb)
        /*
         *    Create a connection entry.
         */
-       cp = ip_vs_conn_new(iph->protocol,
-                           iph->saddr, pptr[0],
-                           iph->daddr, pptr[1],
-                           dest->addr.ip, dest->port ? dest->port : pptr[1],
+       cp = ip_vs_conn_new(AF_INET, iph.protocol,
+                           &iph.saddr, pptr[0],
+                           &iph.daddr, pptr[1],
+                           &dest->addr, dest->port ? dest->port : pptr[1],
                            0,
                            dest);
        if (cp == NULL)
@@ -408,10 +418,10 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff 
*skb,
                struct ip_vs_protocol *pp)
 {
        __be16 _ports[2], *pptr;
-       struct iphdr *iph = ip_hdr(skb);
+       struct ip_vs_iphdr iph;
+       ip_vs_fill_iphdr(AF_INET, skb_network_header(skb), &iph);
 
-       pptr = skb_header_pointer(skb, iph->ihl*4,
-                                 sizeof(_ports), _ports);
+       pptr = skb_header_pointer(skb, iph.len, sizeof(_ports), _ports);
        if (pptr == NULL) {
                ip_vs_service_put(svc);
                return NF_DROP;
@@ -421,7 +431,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff 
*skb,
           and the destination is RTN_UNICAST (and not local), then create
           a cache_bypass connection entry */
        if (sysctl_ip_vs_cache_bypass && svc->fwmark
-           && (inet_addr_type(&init_net, iph->daddr) == RTN_UNICAST)) {
+           && (inet_addr_type(&init_net, iph.daddr.ip) == RTN_UNICAST)) {
                int ret, cs;
                struct ip_vs_conn *cp;
 
@@ -429,9 +439,9 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff 
*skb,
 
                /* create a new connection entry */
                IP_VS_DBG(6, "ip_vs_leave: create a cache_bypass entry\n");
-               cp = ip_vs_conn_new(iph->protocol,
-                                   iph->saddr, pptr[0],
-                                   iph->daddr, pptr[1],
+               cp = ip_vs_conn_new(AF_INET, iph.protocol,
+                                   &iph.saddr, pptr[0],
+                                   &iph.daddr, pptr[1],
                                    0, 0,
                                    IP_VS_CONN_F_BYPASS,
                                    NULL);
diff --git a/net/ipv4/ipvs/ip_vs_ftp.c b/net/ipv4/ipvs/ip_vs_ftp.c
index bfe5d70..0c3fbe0 100644
--- a/net/ipv4/ipvs/ip_vs_ftp.c
+++ b/net/ipv4/ipvs/ip_vs_ftp.c
@@ -140,7 +140,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
        struct tcphdr *th;
        char *data, *data_limit;
        char *start, *end;
-       __be32 from;
+       union nf_inet_addr from;
        __be16 port;
        struct ip_vs_conn *n_cp;
        char buf[24];           /* xxx.xxx.xxx.xxx,ppp,ppp\000 */
@@ -166,24 +166,25 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
                if (ip_vs_ftp_get_addrport(data, data_limit,
                                           SERVER_STRING,
                                           sizeof(SERVER_STRING)-1, ')',
-                                          &from, &port,
+                                          &from.ip, &port,
                                           &start, &end) != 1)
                        return 1;
 
                IP_VS_DBG(7, "PASV response (%u.%u.%u.%u:%d) -> "
                          "%u.%u.%u.%u:%d detected\n",
-                         NIPQUAD(from), ntohs(port), NIPQUAD(cp->caddr.ip), 0);
+                         NIPQUAD(from.ip), ntohs(port),
+                         NIPQUAD(cp->caddr.ip), 0);
 
                /*
                 * Now update or create an connection entry for it
                 */
-               n_cp = ip_vs_conn_out_get(iph->protocol, from, port,
-                                         cp->caddr.ip, 0);
+               n_cp = ip_vs_conn_out_get(AF_INET, iph->protocol, &from, port,
+                                         &cp->caddr, 0);
                if (!n_cp) {
-                       n_cp = ip_vs_conn_new(IPPROTO_TCP,
-                                             cp->caddr.ip, 0,
-                                             cp->vaddr.ip, port,
-                                             from, port,
+                       n_cp = ip_vs_conn_new(AF_INET, IPPROTO_TCP,
+                                             &cp->caddr, 0,
+                                             &cp->vaddr, port,
+                                             &from, port,
                                              IP_VS_CONN_F_NO_CPORT,
                                              cp->dest);
                        if (!n_cp)
@@ -196,9 +197,9 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
                /*
                 * Replace the old passive address with the new one
                 */
-               from = n_cp->vaddr.ip;
+               from.ip = n_cp->vaddr.ip;
                port = n_cp->vport;
-               sprintf(buf,"%d,%d,%d,%d,%d,%d", NIPQUAD(from),
+               sprintf(buf, "%d,%d,%d,%d,%d,%d", NIPQUAD(from.ip),
                        (ntohs(port)>>8)&255, ntohs(port)&255);
                buf_len = strlen(buf);
 
@@ -243,7 +244,7 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
        struct tcphdr *th;
        char *data, *data_start, *data_limit;
        char *start, *end;
-       __be32 to;
+       union nf_inet_addr to;
        __be16 port;
        struct ip_vs_conn *n_cp;
 
@@ -291,12 +292,12 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
         */
        if (ip_vs_ftp_get_addrport(data_start, data_limit,
                                   CLIENT_STRING, sizeof(CLIENT_STRING)-1,
-                                  '\r', &to, &port,
+                                  '\r', &to.ip, &port,
                                   &start, &end) != 1)
                return 1;
 
        IP_VS_DBG(7, "PORT %u.%u.%u.%u:%d detected\n",
-                 NIPQUAD(to), ntohs(port));
+                 NIPQUAD(to.ip), ntohs(port));
 
        /* Passive mode off */
        cp->app_data = NULL;
@@ -306,16 +307,16 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct 
ip_vs_conn *cp,
         */
        IP_VS_DBG(7, "protocol %s %u.%u.%u.%u:%d %u.%u.%u.%u:%d\n",
                  ip_vs_proto_name(iph->protocol),
-                 NIPQUAD(to), ntohs(port), NIPQUAD(cp->vaddr.ip), 0);
+                 NIPQUAD(to.ip), ntohs(port), NIPQUAD(cp->vaddr.ip), 0);
 
-       n_cp = ip_vs_conn_in_get(iph->protocol,
-                                to, port,
-                                cp->vaddr.ip, htons(ntohs(cp->vport)-1));
+       n_cp = ip_vs_conn_in_get(AF_INET, iph->protocol,
+                                &to, port,
+                                &cp->vaddr, htons(ntohs(cp->vport)-1));
        if (!n_cp) {
-               n_cp = ip_vs_conn_new(IPPROTO_TCP,
-                                     to, port,
-                                     cp->vaddr.ip, htons(ntohs(cp->vport)-1),
-                                     cp->daddr.ip, htons(ntohs(cp->dport)-1),
+               n_cp = ip_vs_conn_new(AF_INET, IPPROTO_TCP,
+                                     &to, port,
+                                     &cp->vaddr, htons(ntohs(cp->vport)-1),
+                                     &cp->daddr, htons(ntohs(cp->dport)-1),
                                      0,
                                      cp->dest);
                if (!n_cp)
diff --git a/net/ipv4/ipvs/ip_vs_proto_ah_esp.c 
b/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
index 4b0b8f2..2b18a78 100644
--- a/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
@@ -46,16 +46,16 @@ ah_esp_conn_in_get(int af, const struct sk_buff *skb, 
struct ip_vs_protocol *pp,
        struct ip_vs_conn *cp;
 
        if (likely(!inverse)) {
-               cp = ip_vs_conn_in_get(IPPROTO_UDP,
-                                      iph->saddr.ip,
+               cp = ip_vs_conn_in_get(af, IPPROTO_UDP,
+                                      &iph->saddr,
                                       htons(PORT_ISAKMP),
-                                      iph->daddr.ip,
+                                      &iph->daddr,
                                       htons(PORT_ISAKMP));
        } else {
-               cp = ip_vs_conn_in_get(IPPROTO_UDP,
-                                      iph->daddr.ip,
+               cp = ip_vs_conn_in_get(af, IPPROTO_UDP,
+                                      &iph->daddr,
                                       htons(PORT_ISAKMP),
-                                      iph->saddr.ip,
+                                      &iph->saddr,
                                       htons(PORT_ISAKMP));
        }
 
@@ -86,16 +86,16 @@ ah_esp_conn_out_get(int af, const struct sk_buff *skb,
        struct ip_vs_conn *cp;
 
        if (likely(!inverse)) {
-               cp = ip_vs_conn_out_get(IPPROTO_UDP,
-                                       iph->saddr.ip,
+               cp = ip_vs_conn_out_get(af, IPPROTO_UDP,
+                                       &iph->saddr,
                                        htons(PORT_ISAKMP),
-                                       iph->daddr.ip,
+                                       &iph->daddr,
                                        htons(PORT_ISAKMP));
        } else {
-               cp = ip_vs_conn_out_get(IPPROTO_UDP,
-                                       iph->daddr.ip,
+               cp = ip_vs_conn_out_get(af, IPPROTO_UDP,
+                                       &iph->daddr,
                                        htons(PORT_ISAKMP),
-                                       iph->saddr.ip,
+                                       &iph->saddr,
                                        htons(PORT_ISAKMP));
        }
 
diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c
index 3daae43..3da2bb0 100644
--- a/net/ipv4/ipvs/ip_vs_proto_tcp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c
@@ -36,13 +36,13 @@ tcp_conn_in_get(int af, const struct sk_buff *skb, struct 
ip_vs_protocol *pp,
                return NULL;
 
        if (likely(!inverse)) {
-               return ip_vs_conn_in_get(iph->protocol,
-                                        iph->saddr.ip, pptr[0],
-                                        iph->daddr.ip, pptr[1]);
+               return ip_vs_conn_in_get(af, iph->protocol,
+                                        &iph->saddr, pptr[0],
+                                        &iph->daddr, pptr[1]);
        } else {
-               return ip_vs_conn_in_get(iph->protocol,
-                                        iph->daddr.ip, pptr[1],
-                                        iph->saddr.ip, pptr[0]);
+               return ip_vs_conn_in_get(af, iph->protocol,
+                                        &iph->daddr, pptr[1],
+                                        &iph->saddr, pptr[0]);
        }
 }
 
@@ -58,13 +58,13 @@ tcp_conn_out_get(int af, const struct sk_buff *skb, struct 
ip_vs_protocol *pp,
                return NULL;
 
        if (likely(!inverse)) {
-               return ip_vs_conn_out_get(iph->protocol,
-                                         iph->saddr.ip, pptr[0],
-                                         iph->daddr.ip, pptr[1]);
+               return ip_vs_conn_out_get(af, iph->protocol,
+                                         &iph->saddr, pptr[0],
+                                         &iph->daddr, pptr[1]);
        } else {
-               return ip_vs_conn_out_get(iph->protocol,
-                                         iph->daddr.ip, pptr[1],
-                                         iph->saddr.ip, pptr[0]);
+               return ip_vs_conn_out_get(af, iph->protocol,
+                                         &iph->daddr, pptr[1],
+                                         &iph->saddr, pptr[0]);
        }
 }
 
diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index 6cca0ad..fd8bd93 100644
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -36,13 +36,13 @@ udp_conn_in_get(int af, const struct sk_buff *skb, struct 
ip_vs_protocol *pp,
                return NULL;
 
        if (likely(!inverse)) {
-               cp = ip_vs_conn_in_get(iph->protocol,
-                                      iph->saddr.ip, pptr[0],
-                                      iph->daddr.ip, pptr[1]);
+               cp = ip_vs_conn_in_get(af, iph->protocol,
+                                      &iph->saddr, pptr[0],
+                                      &iph->daddr, pptr[1]);
        } else {
-               cp = ip_vs_conn_in_get(iph->protocol,
-                                      iph->daddr.ip, pptr[1],
-                                      iph->saddr.ip, pptr[0]);
+               cp = ip_vs_conn_in_get(af, iph->protocol,
+                                      &iph->daddr, pptr[1],
+                                      &iph->saddr, pptr[0]);
        }
 
        return cp;
@@ -62,13 +62,13 @@ udp_conn_out_get(int af, const struct sk_buff *skb, struct 
ip_vs_protocol *pp,
                return NULL;
 
        if (likely(!inverse)) {
-               cp = ip_vs_conn_out_get(iph->protocol,
-                                       iph->saddr.ip, pptr[0],
-                                       iph->daddr.ip, pptr[1]);
+               cp = ip_vs_conn_out_get(af, iph->protocol,
+                                       &iph->saddr, pptr[0],
+                                       &iph->daddr, pptr[1]);
        } else {
-               cp = ip_vs_conn_out_get(iph->protocol,
-                                       iph->daddr.ip, pptr[1],
-                                       iph->saddr.ip, pptr[0]);
+               cp = ip_vs_conn_out_get(af, iph->protocol,
+                                       &iph->daddr, pptr[1],
+                                       &iph->saddr, pptr[0]);
        }
 
        return cp;
diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c
index 2cf47b2..3ce1093 100644
--- a/net/ipv4/ipvs/ip_vs_sync.c
+++ b/net/ipv4/ipvs/ip_vs_sync.c
@@ -366,13 +366,17 @@ static void ip_vs_process_message(const char *buffer, 
const size_t buflen)
                }
 
                if (!(flags & IP_VS_CONN_F_TEMPLATE))
-                       cp = ip_vs_conn_in_get(s->protocol,
-                                              s->caddr, s->cport,
-                                              s->vaddr, s->vport);
+                       cp = ip_vs_conn_in_get(AF_INET, s->protocol,
+                                              (union nf_inet_addr *)&s->caddr,
+                                              s->cport,
+                                              (union nf_inet_addr *)&s->vaddr,
+                                              s->vport);
                else
-                       cp = ip_vs_ct_in_get(s->protocol,
-                                              s->caddr, s->cport,
-                                              s->vaddr, s->vport);
+                       cp = ip_vs_ct_in_get(AF_INET, s->protocol,
+                                            (union nf_inet_addr *)&s->caddr,
+                                            s->cport,
+                                            (union nf_inet_addr *)&s->vaddr,
+                                            s->vport);
                if (!cp) {
                        /*
                         * Find the appropriate destination for the connection.
@@ -389,10 +393,13 @@ static void ip_vs_process_message(const char *buffer, 
const size_t buflen)
                                else
                                        flags &= ~IP_VS_CONN_F_INACTIVE;
                        }
-                       cp = ip_vs_conn_new(s->protocol,
-                                           s->caddr, s->cport,
-                                           s->vaddr, s->vport,
-                                           s->daddr, s->dport,
+                       cp = ip_vs_conn_new(AF_INET, s->protocol,
+                                           (union nf_inet_addr *)s->caddr,
+                                           s->cport,
+                                           (union nf_inet_addr *)s->vaddr,
+                                           s->vport,
+                                           (union nf_inet_addr *)s->daddr,
+                                           s->dport,
                                            flags, dest);
                        if (dest)
                                atomic_dec(&dest->refcnt);
-- 
1.5.4.5

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