ipv6: reduce per device ICMP mib sizes

[pandora-kernel.git] / include / net / ipv6.h

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 96e50e0..c033ed0 100644 (file)
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -77,11 +77,9 @@
 /*
  *     Addr scopes
  */
-#ifdef __KERNEL__
 #define IPV6_ADDR_MC_SCOPE(a)  \
        ((a)->s6_addr[1] & 0x0f)        /* nonstandard */
 #define __IPV6_ADDR_SCOPE_INVALID      -1
-#endif
 #define IPV6_ADDR_SCOPE_NODELOCAL      0x01
 #define IPV6_ADDR_SCOPE_LINKLOCAL      0x02
 #define IPV6_ADDR_SCOPE_SITELOCAL      0x05
@@ -91,14 +89,12 @@
 /*
  *     Addr flags
  */
-#ifdef __KERNEL__
 #define IPV6_ADDR_MC_FLAG_TRANSIENT(a) \
        ((a)->s6_addr[1] & 0x10)
 #define IPV6_ADDR_MC_FLAG_PREFIX(a)    \
        ((a)->s6_addr[1] & 0x20)
 #define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a)        \
        ((a)->s6_addr[1] & 0x40)
-#endif
 
 /*
  *     fragmentation header
@@ -113,8 +109,6 @@ struct frag_hdr {
 
 #define        IP6_MF  0x0001
 
-#ifdef __KERNEL__
-
 #include <net/sock.h>
 
 /* sysctls */
@@ -129,6 +123,15 @@ extern struct ctl_path net_ipv6_ctl_path[];
        SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
 })
 
+/* per device counters are atomic_long_t */
+#define _DEVINCATOMIC(net, statname, modifier, idev, field)            \
+({                                                                     \
+       struct inet6_dev *_idev = (idev);                               \
+       if (likely(_idev != NULL))                                      \
+               SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \
+       SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
+})
+
 #define _DEVADD(net, statname, modifier, idev, field, val)             \
 ({                                                                     \
        struct inet6_dev *_idev = (idev);                               \
@@ -160,16 +163,16 @@ extern struct ctl_path net_ipv6_ctl_path[];
 #define IP6_UPD_PO_STATS_BH(net, idev,field,val)   \
                _DEVUPD(net, ipv6, 64_BH, idev, field, val)
 #define ICMP6_INC_STATS(net, idev, field)      \
-               _DEVINC(net, icmpv6, , idev, field)
+               _DEVINCATOMIC(net, icmpv6, , idev, field)
 #define ICMP6_INC_STATS_BH(net, idev, field)   \
-               _DEVINC(net, icmpv6, _BH, idev, field)
+               _DEVINCATOMIC(net, icmpv6, _BH, idev, field)
 
 #define ICMP6MSGOUT_INC_STATS(net, idev, field)                \
-       _DEVINC(net, icmpv6msg, , idev, field +256)
+       _DEVINCATOMIC(net, icmpv6msg, , idev, field +256)
 #define ICMP6MSGOUT_INC_STATS_BH(net, idev, field)     \
-       _DEVINC(net, icmpv6msg, _BH, idev, field +256)
+       _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field +256)
 #define ICMP6MSGIN_INC_STATS_BH(net, idev, field)      \
-       _DEVINC(net, icmpv6msg, _BH, idev, field)
+       _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field)
 
 struct ip6_ra_chain {
        struct ip6_ra_chain     *next;
@@ -376,8 +379,8 @@ enum ip6_defrag_users {
 struct ip6_create_arg {
        __be32 id;
        u32 user;
-       struct in6_addr *src;
-       struct in6_addr *dst;
+       const struct in6_addr *src;
+       const struct in6_addr *dst;
 };
 
 void ip6_frag_init(struct inet_frag_queue *q, void *a);
@@ -492,7 +495,7 @@ extern int                  ip6_rcv_finish(struct sk_buff *skb);
  */
 extern int                     ip6_xmit(struct sock *sk,
                                         struct sk_buff *skb,
-                                        struct flowi *fl,
+                                        struct flowi6 *fl6,
                                         struct ipv6_txoptions *opt);
 
 extern int                     ip6_nd_hdr(struct sock *sk,
@@ -512,7 +515,7 @@ extern int                  ip6_append_data(struct sock *sk,
                                                int hlimit,
                                                int tclass,
                                                struct ipv6_txoptions *opt,
-                                               struct flowi *fl,
+                                               struct flowi6 *fl6,
                                                struct rt6_info *rt,
                                                unsigned int flags,
                                                int dontfrag);
@@ -523,13 +526,17 @@ extern void                       ip6_flush_pending_frames(struct sock *sk);
 
 extern int                     ip6_dst_lookup(struct sock *sk,
                                               struct dst_entry **dst,
-                                              struct flowi *fl);
-extern int                     ip6_dst_blackhole(struct sock *sk,
-                                                 struct dst_entry **dst,
-                                                 struct flowi *fl);
-extern int                     ip6_sk_dst_lookup(struct sock *sk,
-                                                 struct dst_entry **dst,
-                                                 struct flowi *fl);
+                                              struct flowi6 *fl6);
+extern struct dst_entry *      ip6_dst_lookup_flow(struct sock *sk,
+                                                   struct flowi6 *fl6,
+                                                   const struct in6_addr *final_dst,
+                                                   bool can_sleep);
+extern struct dst_entry *      ip6_sk_dst_lookup_flow(struct sock *sk,
+                                                      struct flowi6 *fl6,
+                                                      const struct in6_addr *final_dst,
+                                                      bool can_sleep);
+extern struct dst_entry *      ip6_blackhole_route(struct net *net,
+                                                   struct dst_entry *orig_dst);
 
 /*
  *     skb processing functions
@@ -562,7 +569,7 @@ extern int                  ipv6_ext_hdr(u8 nexthdr);
 
 extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
 
-extern struct in6_addr *fl6_update_dst(struct flowi *fl,
+extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
                                       const struct ipv6_txoptions *opt,
                                       struct in6_addr *orig);
 
@@ -596,8 +603,8 @@ extern int                  ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
 extern int                     ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
 extern void                    ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
                                                u32 info, u8 *payload);
-extern void                    ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info);
-extern void                    ipv6_local_rxpmtu(struct sock *sk, struct flowi *fl, u32 mtu);
+extern void                    ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
+extern void                    ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
 
 extern int inet6_release(struct socket *sock);
 extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr, 
@@ -663,5 +670,4 @@ extern int ipv6_static_sysctl_register(void);
 extern void ipv6_static_sysctl_unregister(void);
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* _NET_IPV6_H */