[INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h

To help in reducing the number of include dependencies, several files were
touched as they were getting needed headers indirectly for stuff they use.

Thanks also to Alan Menegotto for pointing out that net/dccp/proto.c had
linux/dccp.h include twice.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 8 insertions, 134 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index d0bdb499cf8d..088529f54965 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -192,10 +192,9 @@ enum {
 #include <linux/workqueue.h>
 
 #include <net/inet_connection_sock.h>
+#include <net/inet_sock.h>
 #include <net/inet_timewait_sock.h>
-#include <net/sock.h>
 #include <net/tcp_states.h>
-#include <net/tcp.h>
 
 enum dccp_state {
         DCCP_OPEN       = TCP_ESTABLISHED,
diff --git a/include/linux/ip.h b/include/linux/ip.h
index 6ccc596c19c8..9e2eb9a602eb 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -16,6 +16,7 @@
  */
 #ifndef _LINUX_IP_H
 #define _LINUX_IP_H
+#include <linux/types.h>
 #include <asm/byteorder.h>
 
 #define IPTOS_TOS_MASK          0x1E
@@ -78,131 +79,6 @@
 #define IPOPT_TS_TSANDADDR      1               /* timestamps and addresses */
 #define IPOPT_TS_PRESPEC        3               /* specified modules only */
 
-#ifdef __KERNEL__
-#include <linux/config.h>
-#include <linux/types.h>
-#include <net/request_sock.h>
-#include <net/sock.h>
-#include <linux/igmp.h>
-#include <net/flow.h>
-
-struct ip_options {
-  __u32         faddr;                          /* Saved first hop address */
-  unsigned char optlen;
-  unsigned char srr;
-  unsigned char rr;
-  unsigned char ts;
-  unsigned char is_setbyuser:1,                 /* Set by setsockopt?                   */
-                is_data:1,                      /* Options in __data, rather than skb   */
-                is_strictroute:1,               /* Strict source route                  */
-                srr_is_hit:1,                   /* Packet destination addr was our one  */
-                is_changed:1,                   /* IP checksum more not valid           */      
-                rr_needaddr:1,                  /* Need to record addr of outgoing dev  */
-                ts_needtime:1,                  /* Need to record timestamp             */
-                ts_needaddr:1;                  /* Need to record addr of outgoing dev  */
-  unsigned char router_alert;
-  unsigned char __pad1;
-  unsigned char __pad2;
-  unsigned char __data[0];
-};
-
-#define optlength(opt) (sizeof(struct ip_options) + opt->optlen)
-
-struct inet_request_sock {
-        struct request_sock     req;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-        u16                     inet6_rsk_offset;
-        /* 2 bytes hole, try to pack */
-#endif
-        u32                     loc_addr;
-        u32                     rmt_addr;
-        u16                     rmt_port;
-        u16                     snd_wscale : 4, 
-                                rcv_wscale : 4, 
-                                tstamp_ok  : 1,
-                                sack_ok    : 1,
-                                wscale_ok  : 1,
-                                ecn_ok     : 1,
-                                acked      : 1;
-        struct ip_options       *opt;
-};
-
-static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
-{
-        return (struct inet_request_sock *)sk;
-}
-
-struct ipv6_pinfo;
-
-struct inet_sock {
-        /* sk and pinet6 has to be the first two members of inet_sock */
-        struct sock             sk;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-        struct ipv6_pinfo       *pinet6;
-#endif
-        /* Socket demultiplex comparisons on incoming packets. */
-        __u32                   daddr;          /* Foreign IPv4 addr */
-        __u32                   rcv_saddr;      /* Bound local IPv4 addr */
-        __u16                   dport;          /* Destination port */
-        __u16                   num;            /* Local port */
-        __u32                   saddr;          /* Sending source */
-        __s16                   uc_ttl;         /* Unicast TTL */
-        __u16                   cmsg_flags;
-        struct ip_options       *opt;
-        __u16                   sport;          /* Source port */
-        __u16                   id;             /* ID counter for DF pkts */
-        __u8                    tos;            /* TOS */
-        __u8                    mc_ttl;         /* Multicasting TTL */
-        __u8                    pmtudisc;
-        unsigned                recverr : 1,
-                                is_icsk : 1,    /* inet_connection_sock? */
-                                freebind : 1,
-                                hdrincl : 1,
-                                mc_loop : 1;
-        int                     mc_index;       /* Multicast device index */
-        __u32                   mc_addr;
-        struct ip_mc_socklist   *mc_list;       /* Group array */
-        /*
-         * Following members are used to retain the infomation to build
-         * an ip header on each ip fragmentation while the socket is corked.
-         */
-        struct {
-                unsigned int            flags;
-                unsigned int            fragsize;
-                struct ip_options       *opt;
-                struct rtable           *rt;
-                int                     length; /* Total length of all frames */
-                u32                     addr;
-                struct flowi            fl;
-        } cork;
-};
-
-#define IPCORK_OPT      1       /* ip-options has been held in ipcork.opt */
-#define IPCORK_ALLFRAG  2       /* always fragment (for ipv6 for now) */
-
-static inline struct inet_sock *inet_sk(const struct sock *sk)
-{
-        return (struct inet_sock *)sk;
-}
-
-static inline void __inet_sk_copy_descendant(struct sock *sk_to,
-                                             const struct sock *sk_from,
-                                             const int ancestor_size)
-{
-        memcpy(inet_sk(sk_to) + 1, inet_sk(sk_from) + 1,
-               sk_from->sk_prot->obj_size - ancestor_size);
-}
-#if !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE))
-static inline void inet_sk_copy_descendant(struct sock *sk_to,
-                                           const struct sock *sk_from)
-{
-        __inet_sk_copy_descendant(sk_to, sk_from, sizeof(struct inet_sock));
-}
-#endif
-#endif
-
-extern int inet_sk_rebuild_header(struct sock *sk);
-
 struct iphdr {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
         __u8    ihl:4,
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index a0d04891fe12..93bbed5c6cf4 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -171,12 +171,13 @@ enum {
 };
 
 #ifdef __KERNEL__
-#include <linux/in6.h>          /* struct sockaddr_in6 */
 #include <linux/icmpv6.h>
-#include <net/if_inet6.h>       /* struct ipv6_mc_socklist */
 #include <linux/tcp.h>
 #include <linux/udp.h>
 
+#include <net/if_inet6.h>       /* struct ipv6_mc_socklist */
+#include <net/inet_sock.h>
+
 /* 
    This structure contains results of exthdrs parsing
    as offsets from skb->nh.
@@ -346,8 +347,6 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
 #define __ipv6_only_sock(sk)    (inet6_sk(sk)->ipv6only)
 #define ipv6_only_sock(sk)      ((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))
 
-#include <linux/tcp.h>
-
 struct inet6_timewait_sock {
         struct in6_addr tw_v6_daddr;
         struct in6_addr tw_v6_rcv_saddr;
diff --git a/include/linux/udp.h b/include/linux/udp.h
index b60e0b4a25c4..85a55658831c 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -35,10 +35,10 @@ struct udphdr {
 #define UDP_ENCAP_ESPINUDP      2 /* draft-ietf-ipsec-udp-encaps-06 */
 
 #ifdef __KERNEL__
-
 #include <linux/config.h>
-#include <net/sock.h>
-#include <linux/ip.h>
+#include <linux/types.h>
+
+#include <net/inet_sock.h>
 
 struct udp_sock {
         /* inet_sock has to be the first member */