IPVS: Change IPVS data structures to support IPv6 addresses

Introduce new 'af' fields into IPVS data structures for specifying an
entry's address family. Convert IP addresses to be of type union
nf_inet_addr.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

1 files changed, 12 insertions, 6 deletions

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index a25ad243031d..d32825585500 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -21,6 +21,9 @@
 #include <linux/timer.h>
 
 #include <net/checksum.h>
+#include <linux/netfilter.h>            /* for union nf_inet_addr */
+#include <linux/ipv6.h>                 /* for struct ipv6hdr */
+#include <net/ipv6.h>                   /* for ipv6_addr_copy */
 
 #ifdef CONFIG_IP_VS_DEBUG
 #include <linux/net.h>
@@ -259,9 +262,10 @@ struct ip_vs_conn {
         struct list_head        c_list;         /* hashed list heads */
 
         /* Protocol, addresses and port numbers */
-        __be32                   caddr;          /* client address */
-        __be32                   vaddr;          /* virtual address */
-        __be32                   daddr;          /* destination address */
+        u16                      af;            /* address family */
+        union nf_inet_addr       caddr;          /* client address */
+        union nf_inet_addr       vaddr;          /* virtual address */
+        union nf_inet_addr       daddr;          /* destination address */
         __be16                   cport;
         __be16                   vport;
         __be16                   dport;
@@ -314,8 +318,9 @@ struct ip_vs_service {
         atomic_t                refcnt;   /* reference counter */
         atomic_t                usecnt;   /* use counter */
 
+        u16                     af;       /* address family */
         __u16                   protocol; /* which protocol (TCP/UDP) */
-        __be32                  addr;     /* IP address for virtual service */
+        union nf_inet_addr      addr;     /* IP address for virtual service */
         __be16                  port;     /* port number for the service */
         __u32                   fwmark;   /* firewall mark of the service */
         unsigned                flags;    /* service status flags */
@@ -342,7 +347,8 @@ struct ip_vs_dest {
         struct list_head        n_list;   /* for the dests in the service */
         struct list_head        d_list;   /* for table with all the dests */
 
-        __be32                  addr;           /* IP address of the server */
+        u16                     af;             /* address family */
+        union nf_inet_addr      addr;           /* IP address of the server */
         __be16                  port;           /* port number of the server */
         volatile unsigned       flags;          /* dest status flags */
         atomic_t                conn_flags;     /* flags to copy to conn */
@@ -366,7 +372,7 @@ struct ip_vs_dest {
         /* for virtual service */
         struct ip_vs_service    *svc;           /* service it belongs to */
         __u16                   protocol;       /* which protocol (TCP/UDP) */
-        __be32                  vaddr;          /* virtual IP address */
+        union nf_inet_addr      vaddr;          /* virtual IP address */
         __be16                  vport;          /* virtual port number */
         __u32                   vfwmark;        /* firewall mark of service */
 };