[INET_DIAG]: Rename tcp_diag.[ch] to inet_diag.[ch]
authorArnaldo Carvalho de Melo <acme@mandriva.com>
Fri, 12 Aug 2005 15:56:38 +0000 (12:56 -0300)
committerDavid S. Miller <davem@sunset.davemloft.net>
Mon, 29 Aug 2005 22:57:48 +0000 (15:57 -0700)
Next changeset will introduce net/ipv4/tcp_diag.c, moving the code that was put
transitioanlly in inet_diag.c.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/inet_diag.h [new file with mode: 0644]
include/linux/tcp_diag.h [deleted file]
net/dccp/diag.c
net/ipv4/Makefile
net/ipv4/inet_diag.c [new file with mode: 0644]
net/ipv4/tcp_diag.c [deleted file]
net/ipv4/tcp_vegas.c
net/ipv4/tcp_westwood.c

diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
new file mode 100644 (file)
index 0000000..a4606e5
--- /dev/null
@@ -0,0 +1,138 @@
+#ifndef _INET_DIAG_H_
+#define _INET_DIAG_H_ 1
+
+/* Just some random number */
+#define TCPDIAG_GETSOCK 18
+#define DCCPDIAG_GETSOCK 19
+
+#define INET_DIAG_GETSOCK_MAX 24
+
+/* Socket identity */
+struct inet_diag_sockid {
+       __u16   idiag_sport;
+       __u16   idiag_dport;
+       __u32   idiag_src[4];
+       __u32   idiag_dst[4];
+       __u32   idiag_if;
+       __u32   idiag_cookie[2];
+#define INET_DIAG_NOCOOKIE (~0U)
+};
+
+/* Request structure */
+
+struct inet_diag_req {
+       __u8    idiag_family;           /* Family of addresses. */
+       __u8    idiag_src_len;
+       __u8    idiag_dst_len;
+       __u8    idiag_ext;              /* Query extended information */
+
+       struct inet_diag_sockid id;
+
+       __u32   idiag_states;           /* States to dump */
+       __u32   idiag_dbs;              /* Tables to dump (NI) */
+};
+
+enum {
+       INET_DIAG_REQ_NONE,
+       INET_DIAG_REQ_BYTECODE,
+};
+
+#define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
+
+/* Bytecode is sequence of 4 byte commands followed by variable arguments.
+ * All the commands identified by "code" are conditional jumps forward:
+ * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
+ * length of the command and its arguments.
+ */
+struct inet_diag_bc_op {
+       unsigned char   code;
+       unsigned char   yes;
+       unsigned short  no;
+};
+
+enum {
+       INET_DIAG_BC_NOP,
+       INET_DIAG_BC_JMP,
+       INET_DIAG_BC_S_GE,
+       INET_DIAG_BC_S_LE,
+       INET_DIAG_BC_D_GE,
+       INET_DIAG_BC_D_LE,
+       INET_DIAG_BC_AUTO,
+       INET_DIAG_BC_S_COND,
+       INET_DIAG_BC_D_COND,
+};
+
+struct inet_diag_hostcond {
+       __u8    family;
+       __u8    prefix_len;
+       int     port;
+       __u32   addr[0];
+};
+
+/* Base info structure. It contains socket identity (addrs/ports/cookie)
+ * and, alas, the information shown by netstat. */
+struct inet_diag_msg {
+       __u8    idiag_family;
+       __u8    idiag_state;
+       __u8    idiag_timer;
+       __u8    idiag_retrans;
+
+       struct inet_diag_sockid id;
+
+       __u32   idiag_expires;
+       __u32   idiag_rqueue;
+       __u32   idiag_wqueue;
+       __u32   idiag_uid;
+       __u32   idiag_inode;
+};
+
+/* Extensions */
+
+enum {
+       INET_DIAG_NONE,
+       INET_DIAG_MEMINFO,
+       INET_DIAG_INFO,
+       INET_DIAG_VEGASINFO,
+       INET_DIAG_CONG,
+};
+
+#define INET_DIAG_MAX INET_DIAG_CONG
+
+
+/* INET_DIAG_MEM */
+
+struct inet_diag_meminfo {
+       __u32   idiag_rmem;
+       __u32   idiag_wmem;
+       __u32   idiag_fmem;
+       __u32   idiag_tmem;
+};
+
+/* INET_DIAG_VEGASINFO */
+
+struct tcpvegas_info {
+       __u32   tcpv_enabled;
+       __u32   tcpv_rttcnt;
+       __u32   tcpv_rtt;
+       __u32   tcpv_minrtt;
+};
+
+#ifdef __KERNEL__
+struct sock;
+struct inet_hashinfo;
+
+struct inet_diag_handler {
+       struct inet_hashinfo    *idiag_hashinfo;
+       void                    (*idiag_get_info)(struct sock *sk,
+                                                 struct inet_diag_msg *r,
+                                                 void *info);
+       __u16                   idiag_info_size;
+       __u16                   idiag_type;
+};
+
+extern int  inet_diag_register(const struct inet_diag_handler *handler);
+extern void inet_diag_unregister(const struct inet_diag_handler *handler);
+#endif /* __KERNEL__ */
+
+#endif /* _INET_DIAG_H_ */
diff --git a/include/linux/tcp_diag.h b/include/linux/tcp_diag.h
deleted file mode 100644 (file)
index a4606e5..0000000
+++ /dev/null
@@ -1,138 +0,0 @@
-#ifndef _INET_DIAG_H_
-#define _INET_DIAG_H_ 1
-
-/* Just some random number */
-#define TCPDIAG_GETSOCK 18
-#define DCCPDIAG_GETSOCK 19
-
-#define INET_DIAG_GETSOCK_MAX 24
-
-/* Socket identity */
-struct inet_diag_sockid {
-       __u16   idiag_sport;
-       __u16   idiag_dport;
-       __u32   idiag_src[4];
-       __u32   idiag_dst[4];
-       __u32   idiag_if;
-       __u32   idiag_cookie[2];
-#define INET_DIAG_NOCOOKIE (~0U)
-};
-
-/* Request structure */
-
-struct inet_diag_req {
-       __u8    idiag_family;           /* Family of addresses. */
-       __u8    idiag_src_len;
-       __u8    idiag_dst_len;
-       __u8    idiag_ext;              /* Query extended information */
-
-       struct inet_diag_sockid id;
-
-       __u32   idiag_states;           /* States to dump */
-       __u32   idiag_dbs;              /* Tables to dump (NI) */
-};
-
-enum {
-       INET_DIAG_REQ_NONE,
-       INET_DIAG_REQ_BYTECODE,
-};
-
-#define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
-
-/* Bytecode is sequence of 4 byte commands followed by variable arguments.
- * All the commands identified by "code" are conditional jumps forward:
- * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
- * length of the command and its arguments.
- */
-struct inet_diag_bc_op {
-       unsigned char   code;
-       unsigned char   yes;
-       unsigned short  no;
-};
-
-enum {
-       INET_DIAG_BC_NOP,
-       INET_DIAG_BC_JMP,
-       INET_DIAG_BC_S_GE,
-       INET_DIAG_BC_S_LE,
-       INET_DIAG_BC_D_GE,
-       INET_DIAG_BC_D_LE,
-       INET_DIAG_BC_AUTO,
-       INET_DIAG_BC_S_COND,
-       INET_DIAG_BC_D_COND,
-};
-
-struct inet_diag_hostcond {
-       __u8    family;
-       __u8    prefix_len;
-       int     port;
-       __u32   addr[0];
-};
-
-/* Base info structure. It contains socket identity (addrs/ports/cookie)
- * and, alas, the information shown by netstat. */
-struct inet_diag_msg {
-       __u8    idiag_family;
-       __u8    idiag_state;
-       __u8    idiag_timer;
-       __u8    idiag_retrans;
-
-       struct inet_diag_sockid id;
-
-       __u32   idiag_expires;
-       __u32   idiag_rqueue;
-       __u32   idiag_wqueue;
-       __u32   idiag_uid;
-       __u32   idiag_inode;
-};
-
-/* Extensions */
-
-enum {
-       INET_DIAG_NONE,
-       INET_DIAG_MEMINFO,
-       INET_DIAG_INFO,
-       INET_DIAG_VEGASINFO,
-       INET_DIAG_CONG,
-};
-
-#define INET_DIAG_MAX INET_DIAG_CONG
-
-
-/* INET_DIAG_MEM */
-
-struct inet_diag_meminfo {
-       __u32   idiag_rmem;
-       __u32   idiag_wmem;
-       __u32   idiag_fmem;
-       __u32   idiag_tmem;
-};
-
-/* INET_DIAG_VEGASINFO */
-
-struct tcpvegas_info {
-       __u32   tcpv_enabled;
-       __u32   tcpv_rttcnt;
-       __u32   tcpv_rtt;
-       __u32   tcpv_minrtt;
-};
-
-#ifdef __KERNEL__
-struct sock;
-struct inet_hashinfo;
-
-struct inet_diag_handler {
-       struct inet_hashinfo    *idiag_hashinfo;
-       void                    (*idiag_get_info)(struct sock *sk,
-                                                 struct inet_diag_msg *r,
-                                                 void *info);
-       __u16                   idiag_info_size;
-       __u16                   idiag_type;
-};
-
-extern int  inet_diag_register(const struct inet_diag_handler *handler);
-extern void inet_diag_unregister(const struct inet_diag_handler *handler);
-#endif /* __KERNEL__ */
-
-#endif /* _INET_DIAG_H_ */
index 9f07eff..0b10c17 100644 (file)
@@ -12,7 +12,7 @@
 #include <linux/config.h>
 
 #include <linux/module.h>
-#include <linux/tcp_diag.h>
+#include <linux/inet_diag.h>
 
 #include "dccp.h"
 
index 9b1c894..fe5accb 100644 (file)
@@ -30,7 +30,7 @@ obj-$(CONFIG_IP_ROUTE_MULTIPATH_WRANDOM) += multipath_wrandom.o
 obj-$(CONFIG_IP_ROUTE_MULTIPATH_DRR) += multipath_drr.o
 obj-$(CONFIG_NETFILTER)        += netfilter/
 obj-$(CONFIG_IP_VS) += ipvs/
-obj-$(CONFIG_IP_INET_DIAG) += tcp_diag.o 
+obj-$(CONFIG_IP_INET_DIAG) += inet_diag.o 
 obj-$(CONFIG_IP_ROUTE_MULTIPATH_CACHED) += multipath.o
 obj-$(CONFIG_TCP_CONG_BIC) += tcp_bic.o
 obj-$(CONFIG_TCP_CONG_WESTWOOD) += tcp_westwood.o
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
new file mode 100644 (file)
index 0000000..3bd5109
--- /dev/null
@@ -0,0 +1,893 @@
+/*
+ * inet_diag.c Module for monitoring INET transport protocols sockets.
+ *
+ * Version:    $Id: inet_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
+ *
+ * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ *     This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/random.h>
+#include <linux/cache.h>
+#include <linux/init.h>
+#include <linux/time.h>
+
+#include <net/icmp.h>
+#include <net/tcp.h>
+#include <net/ipv6.h>
+#include <net/inet_common.h>
+#include <net/inet_connection_sock.h>
+#include <net/inet_hashtables.h>
+#include <net/inet_timewait_sock.h>
+#include <net/inet6_hashtables.h>
+
+#include <linux/inet.h>
+#include <linux/stddef.h>
+
+#include <linux/inet_diag.h>
+
+static const struct inet_diag_handler **inet_diag_table;
+
+struct inet_diag_entry {
+       u32 *saddr;
+       u32 *daddr;
+       u16 sport;
+       u16 dport;
+       u16 family;
+       u16 userlocks;
+};
+
+static struct sock *idiagnl;
+
+#define INET_DIAG_PUT(skb, attrtype, attrlen) \
+       RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
+
+static int inet_diag_fill(struct sk_buff *skb, struct sock *sk,
+                       int ext, u32 pid, u32 seq, u16 nlmsg_flags,
+                       const struct nlmsghdr *unlh)
+{
+       const struct inet_sock *inet = inet_sk(sk);
+       const struct inet_connection_sock *icsk = inet_csk(sk);
+       struct inet_diag_msg *r;
+       struct nlmsghdr  *nlh;
+       void *info = NULL;
+       struct inet_diag_meminfo  *minfo = NULL;
+       unsigned char    *b = skb->tail;
+       const struct inet_diag_handler *handler;
+
+       handler = inet_diag_table[unlh->nlmsg_type];
+       BUG_ON(handler == NULL);
+
+       nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r));
+       nlh->nlmsg_flags = nlmsg_flags;
+
+       r = NLMSG_DATA(nlh);
+       if (sk->sk_state != TCP_TIME_WAIT) {
+               if (ext & (1 << (INET_DIAG_MEMINFO - 1)))
+                       minfo = INET_DIAG_PUT(skb, INET_DIAG_MEMINFO,
+                                             sizeof(*minfo));
+               if (ext & (1 << (INET_DIAG_INFO - 1)))
+                       info = INET_DIAG_PUT(skb, INET_DIAG_INFO,
+                                          handler->idiag_info_size);
+               
+               if ((ext & (1 << (INET_DIAG_CONG - 1))) && icsk->icsk_ca_ops) {
+                       size_t len = strlen(icsk->icsk_ca_ops->name);
+                       strcpy(INET_DIAG_PUT(skb, INET_DIAG_CONG, len + 1),
+                              icsk->icsk_ca_ops->name);
+               }
+       }
+       r->idiag_family = sk->sk_family;
+       r->idiag_state = sk->sk_state;
+       r->idiag_timer = 0;
+       r->idiag_retrans = 0;
+
+       r->id.idiag_if = sk->sk_bound_dev_if;
+       r->id.idiag_cookie[0] = (u32)(unsigned long)sk;
+       r->id.idiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
+
+       if (r->idiag_state == TCP_TIME_WAIT) {
+               const struct inet_timewait_sock *tw = inet_twsk(sk);
+               long tmo = tw->tw_ttd - jiffies;
+               if (tmo < 0)
+                       tmo = 0;
+
+               r->id.idiag_sport = tw->tw_sport;
+               r->id.idiag_dport = tw->tw_dport;
+               r->id.idiag_src[0] = tw->tw_rcv_saddr;
+               r->id.idiag_dst[0] = tw->tw_daddr;
+               r->idiag_state = tw->tw_substate;
+               r->idiag_timer = 3;
+               r->idiag_expires = (tmo * 1000 + HZ - 1) / HZ;
+               r->idiag_rqueue = 0;
+               r->idiag_wqueue = 0;
+               r->idiag_uid = 0;
+               r->idiag_inode = 0;
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+               if (r->idiag_family == AF_INET6) {
+                       const struct tcp6_timewait_sock *tcp6tw = tcp6_twsk(sk);
+
+                       ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
+                                      &tcp6tw->tw_v6_rcv_saddr);
+                       ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
+                                      &tcp6tw->tw_v6_daddr);
+               }
+#endif
+               nlh->nlmsg_len = skb->tail - b;
+               return skb->len;
+       }
+
+       r->id.idiag_sport = inet->sport;
+       r->id.idiag_dport = inet->dport;
+       r->id.idiag_src[0] = inet->rcv_saddr;
+       r->id.idiag_dst[0] = inet->daddr;
+
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+       if (r->idiag_family == AF_INET6) {
+               struct ipv6_pinfo *np = inet6_sk(sk);
+
+               ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
+                              &np->rcv_saddr);
+               ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
+                              &np->daddr);
+       }
+#endif
+
+#define EXPIRES_IN_MS(tmo)  ((tmo - jiffies) * 1000 + HZ - 1) / HZ
+
+       if (icsk->icsk_pending == ICSK_TIME_RETRANS) {
+               r->idiag_timer = 1;
+               r->idiag_retrans = icsk->icsk_retransmits;
+               r->idiag_expires = EXPIRES_IN_MS(icsk->icsk_timeout);
+       } else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
+               r->idiag_timer = 4;
+               r->idiag_retrans = icsk->icsk_probes_out;
+               r->idiag_expires = EXPIRES_IN_MS(icsk->icsk_timeout);
+       } else if (timer_pending(&sk->sk_timer)) {
+               r->idiag_timer = 2;
+               r->idiag_retrans = icsk->icsk_probes_out;
+               r->idiag_expires = EXPIRES_IN_MS(sk->sk_timer.expires);
+       } else {
+               r->idiag_timer = 0;
+               r->idiag_expires = 0;
+       }
+#undef EXPIRES_IN_MS
+
+       r->idiag_uid = sock_i_uid(sk);
+       r->idiag_inode = sock_i_ino(sk);
+
+       if (minfo) {
+               minfo->idiag_rmem = atomic_read(&sk->sk_rmem_alloc);
+               minfo->idiag_wmem = sk->sk_wmem_queued;
+               minfo->idiag_fmem = sk->sk_forward_alloc;
+               minfo->idiag_tmem = atomic_read(&sk->sk_wmem_alloc);
+       }
+
+       handler->idiag_get_info(sk, r, info);
+
+       if (sk->sk_state < TCP_TIME_WAIT &&
+           icsk->icsk_ca_ops && icsk->icsk_ca_ops->get_info)
+               icsk->icsk_ca_ops->get_info(sk, ext, skb);
+
+       nlh->nlmsg_len = skb->tail - b;
+       return skb->len;
+
+rtattr_failure:
+nlmsg_failure:
+       skb_trim(skb, b - skb->data);
+       return -1;
+}
+
+static int inet_diag_get_exact(struct sk_buff *in_skb, const struct nlmsghdr *nlh)
+{
+       int err;
+       struct sock *sk;
+       struct inet_diag_req *req = NLMSG_DATA(nlh);
+       struct sk_buff *rep;
+       struct inet_hashinfo *hashinfo;
+       const struct inet_diag_handler *handler;
+
+       handler = inet_diag_table[nlh->nlmsg_type];
+       BUG_ON(handler == NULL);
+       hashinfo = handler->idiag_hashinfo;
+
+       if (req->idiag_family == AF_INET) {
+               sk = inet_lookup(hashinfo, req->id.idiag_dst[0],
+                                req->id.idiag_dport, req->id.idiag_src[0],
+                                req->id.idiag_sport, req->id.idiag_if);
+       }
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+       else if (req->idiag_family == AF_INET6) {
+               sk = inet6_lookup(hashinfo,
+                                 (struct in6_addr *)req->id.idiag_dst,
+                                 req->id.idiag_dport,
+                                 (struct in6_addr *)req->id.idiag_src,
+                                 req->id.idiag_sport,
+                                 req->id.idiag_if);
+       }
+#endif
+       else {
+               return -EINVAL;
+       }
+
+       if (sk == NULL)
+               return -ENOENT;
+
+       err = -ESTALE;
+       if ((req->id.idiag_cookie[0] != INET_DIAG_NOCOOKIE ||
+            req->id.idiag_cookie[1] != INET_DIAG_NOCOOKIE) &&
+           ((u32)(unsigned long)sk != req->id.idiag_cookie[0] ||
+            (u32)((((unsigned long)sk) >> 31) >> 1) != req->id.idiag_cookie[1]))
+               goto out;
+
+       err = -ENOMEM;
+       rep = alloc_skb(NLMSG_SPACE((sizeof(struct inet_diag_msg) +
+                                    sizeof(struct inet_diag_meminfo) +
+                                    handler->idiag_info_size + 64)),
+                       GFP_KERNEL);
+       if (!rep)
+               goto out;
+
+       if (inet_diag_fill(rep, sk, req->idiag_ext,
+                        NETLINK_CB(in_skb).pid,
+                        nlh->nlmsg_seq, 0, nlh) <= 0)
+               BUG();
+
+       err = netlink_unicast(idiagnl, rep, NETLINK_CB(in_skb).pid,
+                             MSG_DONTWAIT);
+       if (err > 0)
+               err = 0;
+
+out:
+       if (sk) {
+               if (sk->sk_state == TCP_TIME_WAIT)
+                       inet_twsk_put((struct inet_timewait_sock *)sk);
+               else
+                       sock_put(sk);
+       }
+       return err;
+}
+
+static int bitstring_match(const u32 *a1, const u32 *a2, int bits)
+{
+       int words = bits >> 5;
+
+       bits &= 0x1f;
+
+       if (words) {
+               if (memcmp(a1, a2, words << 2))
+                       return 0;
+       }
+       if (bits) {
+               __u32 w1, w2;
+               __u32 mask;
+
+               w1 = a1[words];
+               w2 = a2[words];
+
+               mask = htonl((0xffffffff) << (32 - bits));
+
+               if ((w1 ^ w2) & mask)
+                       return 0;
+       }
+
+       return 1;
+}
+
+
+static int inet_diag_bc_run(const void *bc, int len,
+                         const struct inet_diag_entry *entry)
+{
+       while (len > 0) {
+               int yes = 1;
+               const struct inet_diag_bc_op *op = bc;
+
+               switch (op->code) {
+               case INET_DIAG_BC_NOP:
+                       break;
+               case INET_DIAG_BC_JMP:
+                       yes = 0;
+                       break;
+               case INET_DIAG_BC_S_GE:
+                       yes = entry->sport >= op[1].no;
+                       break;
+               case INET_DIAG_BC_S_LE:
+                       yes = entry->dport <= op[1].no;
+                       break;
+               case INET_DIAG_BC_D_GE:
+                       yes = entry->dport >= op[1].no;
+                       break;
+               case INET_DIAG_BC_D_LE:
+                       yes = entry->dport <= op[1].no;
+                       break;
+               case INET_DIAG_BC_AUTO:
+                       yes = !(entry->userlocks & SOCK_BINDPORT_LOCK);
+                       break;
+               case INET_DIAG_BC_S_COND:
+               case INET_DIAG_BC_D_COND: {
+                       struct inet_diag_hostcond *cond;
+                       u32 *addr;
+
+                       cond = (struct inet_diag_hostcond *)(op + 1);
+                       if (cond->port != -1 &&
+                           cond->port != (op->code == INET_DIAG_BC_S_COND ?
+                                            entry->sport : entry->dport)) {
+                               yes = 0;
+                               break;
+                       }
+                       
+                       if (cond->prefix_len == 0)
+                               break;
+
+                       if (op->code == INET_DIAG_BC_S_COND)
+                               addr = entry->saddr;
+                       else
+                               addr = entry->daddr;
+
+                       if (bitstring_match(addr, cond->addr, cond->prefix_len))
+                               break;
+                       if (entry->family == AF_INET6 &&
+                           cond->family == AF_INET) {
+                               if (addr[0] == 0 && addr[1] == 0 &&
+                                   addr[2] == htonl(0xffff) &&
+                                   bitstring_match(addr + 3, cond->addr,
+                                                   cond->prefix_len))
+                                       break;
+                       }
+                       yes = 0;
+                       break;
+               }
+               }
+
+               if (yes) { 
+                       len -= op->yes;
+                       bc += op->yes;
+               } else {
+                       len -= op->no;
+                       bc += op->no;
+               }
+       }
+       return (len == 0);
+}
+
+static int valid_cc(const void *bc, int len, int cc)
+{
+       while (len >= 0) {
+               const struct inet_diag_bc_op *op = bc;
+
+               if (cc > len)
+                       return 0;
+               if (cc == len)
+                       return 1;
+               if (op->yes < 4)
+                       return 0;
+               len -= op->yes;
+               bc  += op->yes;
+       }
+       return 0;
+}
+
+static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
+{
+       const unsigned char *bc = bytecode;
+       int  len = bytecode_len;
+
+       while (len > 0) {
+               struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)bc;
+
+//printk("BC: %d %d %d {%d} / %d\n", op->code, op->yes, op->no, op[1].no, len);
+               switch (op->code) {
+               case INET_DIAG_BC_AUTO:
+               case INET_DIAG_BC_S_COND:
+               case INET_DIAG_BC_D_COND:
+               case INET_DIAG_BC_S_GE:
+               case INET_DIAG_BC_S_LE:
+               case INET_DIAG_BC_D_GE:
+               case INET_DIAG_BC_D_LE:
+                       if (op->yes < 4 || op->yes > len + 4)
+                               return -EINVAL;
+               case INET_DIAG_BC_JMP:
+                       if (op->no < 4 || op->no > len + 4)
+                               return -EINVAL;
+                       if (op->no < len &&
+                           !valid_cc(bytecode, bytecode_len, len - op->no))
+                               return -EINVAL;
+                       break;
+               case INET_DIAG_BC_NOP:
+                       if (op->yes < 4 || op->yes > len + 4)
+                               return -EINVAL;
+                       break;
+               default:
+                       return -EINVAL;
+               }
+               bc += op->yes;
+               len -= op->yes;
+       }
+       return len == 0 ? 0 : -EINVAL;
+}
+
+static int inet_diag_dump_sock(struct sk_buff *skb, struct sock *sk,
+                            struct netlink_callback *cb)
+{
+       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
+
+       if (cb->nlh->nlmsg_len > 4 + NLMSG_SPACE(sizeof(*r))) {
+               struct inet_diag_entry entry;
+               struct rtattr *bc = (struct rtattr *)(r + 1);
+               struct inet_sock *inet = inet_sk(sk);
+
+               entry.family = sk->sk_family;
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+               if (entry.family == AF_INET6) {
+                       struct ipv6_pinfo *np = inet6_sk(sk);
+
+                       entry.saddr = np->rcv_saddr.s6_addr32;
+                       entry.daddr = np->daddr.s6_addr32;
+               } else
+#endif
+               {
+                       entry.saddr = &inet->rcv_saddr;
+                       entry.daddr = &inet->daddr;
+               }
+               entry.sport = inet->num;
+               entry.dport = ntohs(inet->dport);
+               entry.userlocks = sk->sk_userlocks;
+
+               if (!inet_diag_bc_run(RTA_DATA(bc), RTA_PAYLOAD(bc), &entry))
+                       return 0;
+       }
+
+       return inet_diag_fill(skb, sk, r->idiag_ext, NETLINK_CB(cb->skb).pid,
+                           cb->nlh->nlmsg_seq, NLM_F_MULTI, cb->nlh);
+}
+
+static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
+                           struct request_sock *req,
+                           u32 pid, u32 seq,
+                           const struct nlmsghdr *unlh)
+{
+       const struct inet_request_sock *ireq = inet_rsk(req);
+       struct inet_sock *inet = inet_sk(sk);
+       unsigned char *b = skb->tail;
+       struct inet_diag_msg *r;
+       struct nlmsghdr *nlh;
+       long tmo;
+
+       nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r));
+       nlh->nlmsg_flags = NLM_F_MULTI;
+       r = NLMSG_DATA(nlh);
+
+       r->idiag_family = sk->sk_family;
+       r->idiag_state = TCP_SYN_RECV;
+       r->idiag_timer = 1;
+       r->idiag_retrans = req->retrans;
+
+       r->id.idiag_if = sk->sk_bound_dev_if;
+       r->id.idiag_cookie[0] = (u32)(unsigned long)req;
+       r->id.idiag_cookie[1] = (u32)(((unsigned long)req >> 31) >> 1);
+
+       tmo = req->expires - jiffies;
+       if (tmo < 0)
+               tmo = 0;
+
+       r->id.idiag_sport = inet->sport;
+       r->id.idiag_dport = ireq->rmt_port;
+       r->id.idiag_src[0] = ireq->loc_addr;
+       r->id.idiag_dst[0] = ireq->rmt_addr;
+       r->idiag_expires = jiffies_to_msecs(tmo);
+       r->idiag_rqueue = 0;
+       r->idiag_wqueue = 0;
+       r->idiag_uid = sock_i_uid(sk);
+       r->idiag_inode = 0;
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+       if (r->idiag_family == AF_INET6) {
+               ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
+                              &tcp6_rsk(req)->loc_addr);
+               ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
+                              &tcp6_rsk(req)->rmt_addr);
+       }
+#endif
+       nlh->nlmsg_len = skb->tail - b;
+
+       return skb->len;
+
+nlmsg_failure:
+       skb_trim(skb, b - skb->data);
+       return -1;
+}
+
+static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
+                            struct netlink_callback *cb)
+{
+       struct inet_diag_entry entry;
+       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
+       struct inet_connection_sock *icsk = inet_csk(sk);
+       struct listen_sock *lopt;
+       struct rtattr *bc = NULL;
+       struct inet_sock *inet = inet_sk(sk);
+       int j, s_j;
+       int reqnum, s_reqnum;
+       int err = 0;
+
+       s_j = cb->args[3];
+       s_reqnum = cb->args[4];
+
+       if (s_j > 0)
+               s_j--;
+
+       entry.family = sk->sk_family;
+
+       read_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
+
+       lopt = icsk->icsk_accept_queue.listen_opt;
+       if (!lopt || !lopt->qlen)
+               goto out;
+
+       if (cb->nlh->nlmsg_len > 4 + NLMSG_SPACE(sizeof(*r))) {
+               bc = (struct rtattr *)(r + 1);
+               entry.sport = inet->num;
+               entry.userlocks = sk->sk_userlocks;
+       }
+
+       for (j = s_j; j < lopt->nr_table_entries; j++) {
+               struct request_sock *req, *head = lopt->syn_table[j];
+
+               reqnum = 0;
+               for (req = head; req; reqnum++, req = req->dl_next) {
+                       struct inet_request_sock *ireq = inet_rsk(req);
+
+                       if (reqnum < s_reqnum)
+                               continue;
+                       if (r->id.idiag_dport != ireq->rmt_port &&
+                           r->id.idiag_dport)
+                               continue;
+
+                       if (bc) {
+                               entry.saddr =
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+                                       (entry.family == AF_INET6) ?
+                                       tcp6_rsk(req)->loc_addr.s6_addr32 :
+#endif
+                                       &ireq->loc_addr;
+                               entry.daddr = 
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+                                       (entry.family == AF_INET6) ?
+                                       tcp6_rsk(req)->rmt_addr.s6_addr32 :
+#endif
+                                       &ireq->rmt_addr;
+                               entry.dport = ntohs(ireq->rmt_port);
+
+                               if (!inet_diag_bc_run(RTA_DATA(bc),
+                                                   RTA_PAYLOAD(bc), &entry))
+                                       continue;
+                       }
+
+                       err = inet_diag_fill_req(skb, sk, req,
+                                              NETLINK_CB(cb->skb).pid,
+                                              cb->nlh->nlmsg_seq, cb->nlh);
+                       if (err < 0) {
+                               cb->args[3] = j + 1;
+                               cb->args[4] = reqnum;
+                               goto out;
+                       }
+               }
+
+               s_reqnum = 0;
+       }
+
+out:
+       read_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
+
+       return err;
+}
+
+static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
+{
+       int i, num;
+       int s_i, s_num;
+       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
+       const struct inet_diag_handler *handler;
+       struct inet_hashinfo *hashinfo;
+
+       handler = inet_diag_table[cb->nlh->nlmsg_type];
+       BUG_ON(handler == NULL);
+       hashinfo = handler->idiag_hashinfo;
+               
+       s_i = cb->args[1];
+       s_num = num = cb->args[2];
+
+       if (cb->args[0] == 0) {
+               if (!(r->idiag_states & (TCPF_LISTEN | TCPF_SYN_RECV)))
+                       goto skip_listen_ht;
+
+               inet_listen_lock(hashinfo);
+               for (i = s_i; i < INET_LHTABLE_SIZE; i++) {
+                       struct sock *sk;
+                       struct hlist_node *node;
+
+                       num = 0;
+                       sk_for_each(sk, node, &hashinfo->listening_hash[i]) {
+                               struct inet_sock *inet = inet_sk(sk);
+
+                               if (num < s_num) {
+                                       num++;
+                                       continue;
+                               }
+
+                               if (r->id.idiag_sport != inet->sport &&
+                                   r->id.idiag_sport)
+                                       goto next_listen;
+
+                               if (!(r->idiag_states & TCPF_LISTEN) ||
+                                   r->id.idiag_dport ||
+                                   cb->args[3] > 0)
+                                       goto syn_recv;
+
+                               if (inet_diag_dump_sock(skb, sk, cb) < 0) {
+                                       inet_listen_unlock(hashinfo);
+                                       goto done;
+                               }
+
+syn_recv:
+                               if (!(r->idiag_states & TCPF_SYN_RECV))
+                                       goto next_listen;
+
+                               if (inet_diag_dump_reqs(skb, sk, cb) < 0) {
+                                       inet_listen_unlock(hashinfo);
+                                       goto done;
+                               }
+
+next_listen:
+                               cb->args[3] = 0;
+                               cb->args[4] = 0;
+                               ++num;
+                       }
+
+                       s_num = 0;
+                       cb->args[3] = 0;
+                       cb->args[4] = 0;
+               }
+               inet_listen_unlock(hashinfo);
+skip_listen_ht:
+               cb->args[0] = 1;
+               s_i = num = s_num = 0;
+       }
+
+       if (!(r->idiag_states & ~(TCPF_LISTEN | TCPF_SYN_RECV)))
+               return skb->len;
+
+       for (i = s_i; i < hashinfo->ehash_size; i++) {
+               struct inet_ehash_bucket *head = &hashinfo->ehash[i];
+               struct sock *sk;
+               struct hlist_node *node;
+
+               if (i > s_i)
+                       s_num = 0;
+
+               read_lock_bh(&head->lock);
+
+               num = 0;
+               sk_for_each(sk, node, &head->chain) {
+                       struct inet_sock *inet = inet_sk(sk);
+
+                       if (num < s_num)
+                               goto next_normal;
+                       if (!(r->idiag_states & (1 << sk->sk_state)))
+                               goto next_normal;
+                       if (r->id.idiag_sport != inet->sport &&
+                           r->id.idiag_sport)
+                               goto next_normal;
+                       if (r->id.idiag_dport != inet->dport && r->id.idiag_dport)
+                               goto next_normal;
+                       if (inet_diag_dump_sock(skb, sk, cb) < 0) {
+                               read_unlock_bh(&head->lock);
+                               goto done;
+                       }
+next_normal:
+                       ++num;
+               }
+
+               if (r->idiag_states & TCPF_TIME_WAIT) {
+                       sk_for_each(sk, node,
+                                   &hashinfo->ehash[i + hashinfo->ehash_size].chain) {
+                               struct inet_sock *inet = inet_sk(sk);
+
+                               if (num < s_num)
+                                       goto next_dying;
+                               if (r->id.idiag_sport != inet->sport &&
+                                   r->id.idiag_sport)
+                                       goto next_dying;
+                               if (r->id.idiag_dport != inet->dport &&
+                                   r->id.idiag_dport)
+                                       goto next_dying;
+                               if (inet_diag_dump_sock(skb, sk, cb) < 0) {
+                                       read_unlock_bh(&head->lock);
+                                       goto done;
+                               }
+next_dying:
+                               ++num;
+                       }
+               }
+               read_unlock_bh(&head->lock);
+       }
+
+done:
+       cb->args[1] = i;
+       cb->args[2] = num;
+       return skb->len;
+}
+
+static int inet_diag_dump_done(struct netlink_callback *cb)
+{
+       return 0;
+}
+
+
+static __inline__ int
+inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+{
+       if (!(nlh->nlmsg_flags&NLM_F_REQUEST))
+               return 0;
+
+       if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX)
+               goto err_inval;
+
+       if (inet_diag_table[nlh->nlmsg_type] == NULL)
+               return -ENOENT;
+
+       if (NLMSG_LENGTH(sizeof(struct inet_diag_req)) > skb->len)
+               goto err_inval;
+
+       if (nlh->nlmsg_flags&NLM_F_DUMP) {
+               if (nlh->nlmsg_len >
+                   (4 + NLMSG_SPACE(sizeof(struct inet_diag_req)))) {
+                       struct rtattr *rta = (void *)(NLMSG_DATA(nlh) +
+                                                sizeof(struct inet_diag_req));
+                       if (rta->rta_type != INET_DIAG_REQ_BYTECODE ||
+                           rta->rta_len < 8 ||
+                           rta->rta_len >
+                           (nlh->nlmsg_len -
+                            NLMSG_SPACE(sizeof(struct inet_diag_req))))
+                               goto err_inval;
+                       if (inet_diag_bc_audit(RTA_DATA(rta), RTA_PAYLOAD(rta)))
+                               goto err_inval;
+               }
+               return netlink_dump_start(idiagnl, skb, nlh,
+                                         inet_diag_dump,
+                                         inet_diag_dump_done);
+       } else {
+               return inet_diag_get_exact(skb, nlh);
+       }
+
+err_inval:
+       return -EINVAL;
+}
+
+
+static inline void inet_diag_rcv_skb(struct sk_buff *skb)
+{
+       int err;
+       struct nlmsghdr * nlh;
+
+       if (skb->len >= NLMSG_SPACE(0)) {
+               nlh = (struct nlmsghdr *)skb->data;
+               if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
+                       return;
+               err = inet_diag_rcv_msg(skb, nlh);
+               if (err || nlh->nlmsg_flags & NLM_F_ACK) 
+                       netlink_ack(skb, nlh, err);
+       }
+}
+
+static void inet_diag_rcv(struct sock *sk, int len)
+{
+       struct sk_buff *skb;
+       unsigned int qlen = skb_queue_len(&sk->sk_receive_queue);
+
+       while (qlen-- && (skb = skb_dequeue(&sk->sk_receive_queue))) {
+               inet_diag_rcv_skb(skb);
+               kfree_skb(skb);
+       }
+}
+
+static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
+                             void *_info)
+{
+       const struct tcp_sock *tp = tcp_sk(sk);
+       struct tcp_info *info = _info;
+
+       r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
+       r->idiag_wqueue = tp->write_seq - tp->snd_una;
+       if (info != NULL)
+               tcp_get_info(sk, info);
+}
+
+static struct inet_diag_handler tcp_diag_handler = {
+       .idiag_hashinfo  = &tcp_hashinfo,
+       .idiag_get_info  = tcp_diag_get_info,
+       .idiag_type      = TCPDIAG_GETSOCK,
+       .idiag_info_size = sizeof(struct tcp_info),
+};
+
+static DEFINE_SPINLOCK(inet_diag_register_lock);
+
+int inet_diag_register(const struct inet_diag_handler *h)
+{
+       const __u16 type = h->idiag_type;
+       int err = -EINVAL;
+
+       if (type >= INET_DIAG_GETSOCK_MAX)
+               goto out;
+
+       spin_lock(&inet_diag_register_lock);
+       err = -EEXIST;
+       if (inet_diag_table[type] == NULL) {
+               inet_diag_table[type] = h;
+               err = 0;
+       }
+       spin_unlock(&inet_diag_register_lock);
+out:
+       return err;
+}
+EXPORT_SYMBOL_GPL(inet_diag_register);
+
+void inet_diag_unregister(const struct inet_diag_handler *h)
+{
+       const __u16 type = h->idiag_type;
+
+       if (type >= INET_DIAG_GETSOCK_MAX)
+               return;
+
+       spin_lock(&inet_diag_register_lock);
+       inet_diag_table[type] = NULL;
+       spin_unlock(&inet_diag_register_lock);
+
+       synchronize_rcu();
+}
+EXPORT_SYMBOL_GPL(inet_diag_unregister);
+
+static int __init inet_diag_init(void)
+{
+       const int inet_diag_table_size = (INET_DIAG_GETSOCK_MAX *
+                                         sizeof(struct inet_diag_handler *));
+       int err = -ENOMEM;
+
+       inet_diag_table = kmalloc(inet_diag_table_size, GFP_KERNEL);
+       if (!inet_diag_table)
+               goto out;
+
+       memset(inet_diag_table, 0, inet_diag_table_size);
+
+       idiagnl = netlink_kernel_create(NETLINK_INET_DIAG, inet_diag_rcv,
+                                       THIS_MODULE);
+       if (idiagnl == NULL)
+               goto out_free_table;
+
+       err = inet_diag_register(&tcp_diag_handler);
+       if (err)
+               goto out_sock_release;
+out:
+       return err;
+out_sock_release:
+       sock_release(idiagnl->sk_socket);
+out_free_table:
+       kfree(inet_diag_table);
+       goto out;
+}
+
+static void __exit inet_diag_exit(void)
+{
+       sock_release(idiagnl->sk_socket);
+       kfree(inet_diag_table);
+}
+
+module_init(inet_diag_init);
+module_exit(inet_diag_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
deleted file mode 100644 (file)
index 24abe82..0000000
+++ /dev/null
@@ -1,892 +0,0 @@
-/*
- * inet_diag.c Module for monitoring INET transport protocols sockets.
- *
- * Version:    $Id: inet_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
- *
- * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- *     This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/random.h>
-#include <linux/cache.h>
-#include <linux/init.h>
-#include <linux/time.h>
-
-#include <net/icmp.h>
-#include <net/tcp.h>
-#include <net/ipv6.h>
-#include <net/inet_common.h>
-#include <net/inet_connection_sock.h>
-#include <net/inet_hashtables.h>
-#include <net/inet_timewait_sock.h>
-#include <net/inet6_hashtables.h>
-
-#include <linux/inet.h>
-#include <linux/stddef.h>
-
-#include <linux/tcp_diag.h>
-
-static const struct inet_diag_handler **inet_diag_table;
-
-struct inet_diag_entry {
-       u32 *saddr;
-       u32 *daddr;
-       u16 sport;
-       u16 dport;
-       u16 family;
-       u16 userlocks;
-};
-
-static struct sock *idiagnl;
-
-#define INET_DIAG_PUT(skb, attrtype, attrlen) \
-       RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
-
-static int inet_diag_fill(struct sk_buff *skb, struct sock *sk,
-                       int ext, u32 pid, u32 seq, u16 nlmsg_flags,
-                       const struct nlmsghdr *unlh)
-{
-       const struct inet_sock *inet = inet_sk(sk);
-       const struct inet_connection_sock *icsk = inet_csk(sk);
-       struct inet_diag_msg *r;
-       struct nlmsghdr  *nlh;
-       void *info = NULL;
-       struct inet_diag_meminfo  *minfo = NULL;
-       unsigned char    *b = skb->tail;
-       const struct inet_diag_handler *handler;
-
-       handler = inet_diag_table[unlh->nlmsg_type];
-       BUG_ON(handler == NULL);
-
-       nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r));
-       nlh->nlmsg_flags = nlmsg_flags;
-
-       r = NLMSG_DATA(nlh);
-       if (sk->sk_state != TCP_TIME_WAIT) {
-               if (ext & (1 << (INET_DIAG_MEMINFO - 1)))
-                       minfo = INET_DIAG_PUT(skb, INET_DIAG_MEMINFO,
-                                             sizeof(*minfo));
-               if (ext & (1 << (INET_DIAG_INFO - 1)))
-                       info = INET_DIAG_PUT(skb, INET_DIAG_INFO,
-                                          handler->idiag_info_size);
-               
-               if ((ext & (1 << (INET_DIAG_CONG - 1))) && icsk->icsk_ca_ops) {
-                       size_t len = strlen(icsk->icsk_ca_ops->name);
-                       strcpy(INET_DIAG_PUT(skb, INET_DIAG_CONG, len + 1),
-                              icsk->icsk_ca_ops->name);
-               }
-       }
-       r->idiag_family = sk->sk_family;
-       r->idiag_state = sk->sk_state;
-       r->idiag_timer = 0;
-       r->idiag_retrans = 0;
-
-       r->id.idiag_if = sk->sk_bound_dev_if;
-       r->id.idiag_cookie[0] = (u32)(unsigned long)sk;
-       r->id.idiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
-
-       if (r->idiag_state == TCP_TIME_WAIT) {
-               const struct inet_timewait_sock *tw = inet_twsk(sk);
-               long tmo = tw->tw_ttd - jiffies;
-               if (tmo < 0)
-                       tmo = 0;
-
-               r->id.idiag_sport = tw->tw_sport;
-               r->id.idiag_dport = tw->tw_dport;
-               r->id.idiag_src[0] = tw->tw_rcv_saddr;
-               r->id.idiag_dst[0] = tw->tw_daddr;
-               r->idiag_state = tw->tw_substate;
-               r->idiag_timer = 3;
-               r->idiag_expires = (tmo * 1000 + HZ - 1) / HZ;
-               r->idiag_rqueue = 0;
-               r->idiag_wqueue = 0;
-               r->idiag_uid = 0;
-               r->idiag_inode = 0;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-               if (r->idiag_family == AF_INET6) {
-                       const struct tcp6_timewait_sock *tcp6tw = tcp6_twsk(sk);
-
-                       ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
-                                      &tcp6tw->tw_v6_rcv_saddr);
-                       ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
-                                      &tcp6tw->tw_v6_daddr);
-               }
-#endif
-               nlh->nlmsg_len = skb->tail - b;
-               return skb->len;
-       }
-
-       r->id.idiag_sport = inet->sport;
-       r->id.idiag_dport = inet->dport;
-       r->id.idiag_src[0] = inet->rcv_saddr;
-       r->id.idiag_dst[0] = inet->daddr;
-
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-       if (r->idiag_family == AF_INET6) {
-               struct ipv6_pinfo *np = inet6_sk(sk);
-
-               ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
-                              &np->rcv_saddr);
-               ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
-                              &np->daddr);
-       }
-#endif
-
-#define EXPIRES_IN_MS(tmo)  ((tmo-jiffies)*1000+HZ-1)/HZ
-
-       if (icsk->icsk_pending == ICSK_TIME_RETRANS) {
-               r->idiag_timer = 1;
-               r->idiag_retrans = icsk->icsk_retransmits;
-               r->idiag_expires = EXPIRES_IN_MS(icsk->icsk_timeout);
-       } else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
-               r->idiag_timer = 4;
-               r->idiag_retrans = icsk->icsk_probes_out;
-               r->idiag_expires = EXPIRES_IN_MS(icsk->icsk_timeout);
-       } else if (timer_pending(&sk->sk_timer)) {
-               r->idiag_timer = 2;
-               r->idiag_retrans = icsk->icsk_probes_out;
-               r->idiag_expires = EXPIRES_IN_MS(sk->sk_timer.expires);
-       } else {
-               r->idiag_timer = 0;
-               r->idiag_expires = 0;
-       }
-#undef EXPIRES_IN_MS
-
-       r->idiag_uid = sock_i_uid(sk);
-       r->idiag_inode = sock_i_ino(sk);
-
-       if (minfo) {
-               minfo->idiag_rmem = atomic_read(&sk->sk_rmem_alloc);
-               minfo->idiag_wmem = sk->sk_wmem_queued;
-               minfo->idiag_fmem = sk->sk_forward_alloc;
-               minfo->idiag_tmem = atomic_read(&sk->sk_wmem_alloc);
-       }
-
-       handler->idiag_get_info(sk, r, info);
-
-       if (sk->sk_state < TCP_TIME_WAIT &&
-           icsk->icsk_ca_ops && icsk->icsk_ca_ops->get_info)
-               icsk->icsk_ca_ops->get_info(sk, ext, skb);
-
-       nlh->nlmsg_len = skb->tail - b;
-       return skb->len;
-
-rtattr_failure:
-nlmsg_failure:
-       skb_trim(skb, b - skb->data);
-       return -1;
-}
-
-static int inet_diag_get_exact(struct sk_buff *in_skb, const struct nlmsghdr *nlh)
-{
-       int err;
-       struct sock *sk;
-       struct inet_diag_req *req = NLMSG_DATA(nlh);
-       struct sk_buff *rep;
-       struct inet_hashinfo *hashinfo;
-       const struct inet_diag_handler *handler;
-
-       handler = inet_diag_table[nlh->nlmsg_type];
-       BUG_ON(handler == NULL);
-       hashinfo = handler->idiag_hashinfo;
-
-       if (req->idiag_family == AF_INET) {
-               sk = inet_lookup(hashinfo, req->id.idiag_dst[0],
-                                req->id.idiag_dport, req->id.idiag_src[0],
-                                req->id.idiag_sport, req->id.idiag_if);
-       }
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-       else if (req->idiag_family == AF_INET6) {
-               sk = inet6_lookup(hashinfo,
-                                 (struct in6_addr *)req->id.idiag_dst,
-                                 req->id.idiag_dport,
-                                 (struct in6_addr *)req->id.idiag_src,
-                                 req->id.idiag_sport,
-                                 req->id.idiag_if);
-       }
-#endif
-       else {
-               return -EINVAL;
-       }
-
-       if (sk == NULL)
-               return -ENOENT;
-
-       err = -ESTALE;
-       if ((req->id.idiag_cookie[0] != INET_DIAG_NOCOOKIE ||
-            req->id.idiag_cookie[1] != INET_DIAG_NOCOOKIE) &&
-           ((u32)(unsigned long)sk != req->id.idiag_cookie[0] ||
-            (u32)((((unsigned long)sk) >> 31) >> 1) != req->id.idiag_cookie[1]))
-               goto out;
-
-       err = -ENOMEM;
-       rep = alloc_skb(NLMSG_SPACE((sizeof(struct inet_diag_msg) +
-                                    sizeof(struct inet_diag_meminfo) +
-                                    handler->idiag_info_size + 64)),
-                       GFP_KERNEL);
-       if (!rep)
-               goto out;
-
-       if (inet_diag_fill(rep, sk, req->idiag_ext,
-                        NETLINK_CB(in_skb).pid,
-                        nlh->nlmsg_seq, 0, nlh) <= 0)
-               BUG();
-
-       err = netlink_unicast(idiagnl, rep, NETLINK_CB(in_skb).pid,
-                             MSG_DONTWAIT);
-       if (err > 0)
-               err = 0;
-
-out:
-       if (sk) {
-               if (sk->sk_state == TCP_TIME_WAIT)
-                       inet_twsk_put((struct inet_timewait_sock *)sk);
-               else
-                       sock_put(sk);
-       }
-       return err;
-}
-
-static int bitstring_match(const u32 *a1, const u32 *a2, int bits)
-{
-       int words = bits >> 5;
-
-       bits &= 0x1f;
-
-       if (words) {
-               if (memcmp(a1, a2, words << 2))
-                       return 0;
-       }
-       if (bits) {
-               __u32 w1, w2;
-               __u32 mask;
-
-               w1 = a1[words];
-               w2 = a2[words];
-
-               mask = htonl((0xffffffff) << (32 - bits));
-
-               if ((w1 ^ w2) & mask)
-                       return 0;
-       }
-
-       return 1;
-}
-
-
-static int inet_diag_bc_run(const void *bc, int len,
-                         const struct inet_diag_entry *entry)
-{
-       while (len > 0) {
-               int yes = 1;
-               const struct inet_diag_bc_op *op = bc;
-
-               switch (op->code) {
-               case INET_DIAG_BC_NOP:
-                       break;
-               case INET_DIAG_BC_JMP:
-                       yes = 0;
-                       break;
-               case INET_DIAG_BC_S_GE:
-                       yes = entry->sport >= op[1].no;
-                       break;
-               case INET_DIAG_BC_S_LE:
-                       yes = entry->dport <= op[1].no;
-                       break;
-               case INET_DIAG_BC_D_GE:
-                       yes = entry->dport >= op[1].no;
-                       break;
-               case INET_DIAG_BC_D_LE:
-                       yes = entry->dport <= op[1].no;
-                       break;
-               case INET_DIAG_BC_AUTO:
-                       yes = !(entry->userlocks & SOCK_BINDPORT_LOCK);
-                       break;
-               case INET_DIAG_BC_S_COND:
-               case INET_DIAG_BC_D_COND:
-               {
-                       struct inet_diag_hostcond *cond = (struct inet_diag_hostcond*)(op+1);
-                       u32 *addr;
-
-                       if (cond->port != -1 &&
-                           cond->port != (op->code == INET_DIAG_BC_S_COND ?
-                                            entry->sport : entry->dport)) {
-                               yes = 0;
-                               break;
-                       }
-                       
-                       if (cond->prefix_len == 0)
-                               break;
-
-                       if (op->code == INET_DIAG_BC_S_COND)
-                               addr = entry->saddr;
-                       else
-                               addr = entry->daddr;
-
-                       if (bitstring_match(addr, cond->addr, cond->prefix_len))
-                               break;
-                       if (entry->family == AF_INET6 &&
-                           cond->family == AF_INET) {
-                               if (addr[0] == 0 && addr[1] == 0 &&
-                                   addr[2] == htonl(0xffff) &&
-                                   bitstring_match(addr+3, cond->addr, cond->prefix_len))
-                                       break;
-                       }
-                       yes = 0;
-                       break;
-               }
-               }
-
-               if (yes) { 
-                       len -= op->yes;
-                       bc += op->yes;
-               } else {
-                       len -= op->no;
-                       bc += op->no;
-               }
-       }
-       return (len == 0);
-}
-
-static int valid_cc(const void *bc, int len, int cc)
-{
-       while (len >= 0) {
-               const struct inet_diag_bc_op *op = bc;
-
-               if (cc > len)
-                       return 0;
-               if (cc == len)
-                       return 1;
-               if (op->yes < 4)
-                       return 0;
-               len -= op->yes;
-               bc  += op->yes;
-       }
-       return 0;
-}
-
-static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
-{
-       const unsigned char *bc = bytecode;
-       int  len = bytecode_len;
-
-       while (len > 0) {
-               struct inet_diag_bc_op *op = (struct inet_diag_bc_op*)bc;
-
-//printk("BC: %d %d %d {%d} / %d\n", op->code, op->yes, op->no, op[1].no, len);
-               switch (op->code) {
-               case INET_DIAG_BC_AUTO:
-               case INET_DIAG_BC_S_COND:
-               case INET_DIAG_BC_D_COND:
-               case INET_DIAG_BC_S_GE:
-               case INET_DIAG_BC_S_LE:
-               case INET_DIAG_BC_D_GE:
-               case INET_DIAG_BC_D_LE:
-                       if (op->yes < 4 || op->yes > len+4)
-                               return -EINVAL;
-               case INET_DIAG_BC_JMP:
-                       if (op->no < 4 || op->no > len+4)
-                               return -EINVAL;
-                       if (op->no < len &&
-                           !valid_cc(bytecode, bytecode_len, len-op->no))
-                               return -EINVAL;
-                       break;
-               case INET_DIAG_BC_NOP:
-                       if (op->yes < 4 || op->yes > len+4)
-                               return -EINVAL;
-                       break;
-               default:
-                       return -EINVAL;
-               }
-               bc += op->yes;
-               len -= op->yes;
-       }
-       return len == 0 ? 0 : -EINVAL;
-}
-
-static int inet_diag_dump_sock(struct sk_buff *skb, struct sock *sk,
-                            struct netlink_callback *cb)
-{
-       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
-
-       if (cb->nlh->nlmsg_len > 4 + NLMSG_SPACE(sizeof(*r))) {
-               struct inet_diag_entry entry;
-               struct rtattr *bc = (struct rtattr *)(r + 1);
-               struct inet_sock *inet = inet_sk(sk);
-
-               entry.family = sk->sk_family;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-               if (entry.family == AF_INET6) {
-                       struct ipv6_pinfo *np = inet6_sk(sk);
-
-                       entry.saddr = np->rcv_saddr.s6_addr32;
-                       entry.daddr = np->daddr.s6_addr32;
-               } else
-#endif
-               {
-                       entry.saddr = &inet->rcv_saddr;
-                       entry.daddr = &inet->daddr;
-               }
-               entry.sport = inet->num;
-               entry.dport = ntohs(inet->dport);
-               entry.userlocks = sk->sk_userlocks;
-
-               if (!inet_diag_bc_run(RTA_DATA(bc), RTA_PAYLOAD(bc), &entry))
-                       return 0;
-       }
-
-       return inet_diag_fill(skb, sk, r->idiag_ext, NETLINK_CB(cb->skb).pid,
-                           cb->nlh->nlmsg_seq, NLM_F_MULTI, cb->nlh);
-}
-
-static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
-                           struct request_sock *req,
-                           u32 pid, u32 seq,
-                           const struct nlmsghdr *unlh)
-{
-       const struct inet_request_sock *ireq = inet_rsk(req);
-       struct inet_sock *inet = inet_sk(sk);
-       unsigned char *b = skb->tail;
-       struct inet_diag_msg *r;
-       struct nlmsghdr *nlh;
-       long tmo;
-
-       nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r));
-       nlh->nlmsg_flags = NLM_F_MULTI;
-       r = NLMSG_DATA(nlh);
-
-       r->idiag_family = sk->sk_family;
-       r->idiag_state = TCP_SYN_RECV;
-       r->idiag_timer = 1;
-       r->idiag_retrans = req->retrans;
-
-       r->id.idiag_if = sk->sk_bound_dev_if;
-       r->id.idiag_cookie[0] = (u32)(unsigned long)req;
-       r->id.idiag_cookie[1] = (u32)(((unsigned long)req >> 31) >> 1);
-
-       tmo = req->expires - jiffies;
-       if (tmo < 0)
-               tmo = 0;
-
-       r->id.idiag_sport = inet->sport;
-       r->id.idiag_dport = ireq->rmt_port;
-       r->id.idiag_src[0] = ireq->loc_addr;
-       r->id.idiag_dst[0] = ireq->rmt_addr;
-       r->idiag_expires = jiffies_to_msecs(tmo);
-       r->idiag_rqueue = 0;
-       r->idiag_wqueue = 0;
-       r->idiag_uid = sock_i_uid(sk);
-       r->idiag_inode = 0;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-       if (r->idiag_family == AF_INET6) {
-               ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
-                              &tcp6_rsk(req)->loc_addr);
-               ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
-                              &tcp6_rsk(req)->rmt_addr);
-       }
-#endif
-       nlh->nlmsg_len = skb->tail - b;
-
-       return skb->len;
-
-nlmsg_failure:
-       skb_trim(skb, b - skb->data);
-       return -1;
-}
-
-static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
-                            struct netlink_callback *cb)
-{
-       struct inet_diag_entry entry;
-       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
-       struct inet_connection_sock *icsk = inet_csk(sk);
-       struct listen_sock *lopt;
-       struct rtattr *bc = NULL;
-       struct inet_sock *inet = inet_sk(sk);
-       int j, s_j;
-       int reqnum, s_reqnum;
-       int err = 0;
-
-       s_j = cb->args[3];
-       s_reqnum = cb->args[4];
-
-       if (s_j > 0)
-               s_j--;
-
-       entry.family = sk->sk_family;
-
-       read_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
-
-       lopt = icsk->icsk_accept_queue.listen_opt;
-       if (!lopt || !lopt->qlen)
-               goto out;
-
-       if (cb->nlh->nlmsg_len > 4 + NLMSG_SPACE(sizeof(*r))) {
-               bc = (struct rtattr *)(r + 1);
-               entry.sport = inet->num;
-               entry.userlocks = sk->sk_userlocks;
-       }
-
-       for (j = s_j; j < lopt->nr_table_entries; j++) {
-               struct request_sock *req, *head = lopt->syn_table[j];
-
-               reqnum = 0;
-               for (req = head; req; reqnum++, req = req->dl_next) {
-                       struct inet_request_sock *ireq = inet_rsk(req);
-
-                       if (reqnum < s_reqnum)
-                               continue;
-                       if (r->id.idiag_dport != ireq->rmt_port &&
-                           r->id.idiag_dport)
-                               continue;
-
-                       if (bc) {
-                               entry.saddr =
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-                                       (entry.family == AF_INET6) ?
-                                       tcp6_rsk(req)->loc_addr.s6_addr32 :
-#endif
-                                       &ireq->loc_addr;
-                               entry.daddr = 
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-                                       (entry.family == AF_INET6) ?
-                                       tcp6_rsk(req)->rmt_addr.s6_addr32 :
-#endif
-                                       &ireq->rmt_addr;
-                               entry.dport = ntohs(ireq->rmt_port);
-
-                               if (!inet_diag_bc_run(RTA_DATA(bc),
-                                                   RTA_PAYLOAD(bc), &entry))
-                                       continue;
-                       }
-
-                       err = inet_diag_fill_req(skb, sk, req,
-                                              NETLINK_CB(cb->skb).pid,
-                                              cb->nlh->nlmsg_seq, cb->nlh);
-                       if (err < 0) {
-                               cb->args[3] = j + 1;
-                               cb->args[4] = reqnum;
-                               goto out;
-                       }
-               }
-
-               s_reqnum = 0;
-       }
-
-out:
-       read_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
-
-       return err;
-}
-
-static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
-{
-       int i, num;
-       int s_i, s_num;
-       struct inet_diag_req *r = NLMSG_DATA(cb->nlh);
-       const struct inet_diag_handler *handler;
-       struct inet_hashinfo *hashinfo;
-
-       handler = inet_diag_table[cb->nlh->nlmsg_type];
-       BUG_ON(handler == NULL);
-       hashinfo = handler->idiag_hashinfo;
-               
-       s_i = cb->args[1];
-       s_num = num = cb->args[2];
-
-       if (cb->args[0] == 0) {
-               if (!(r->idiag_states & (TCPF_LISTEN | TCPF_SYN_RECV)))
-                       goto skip_listen_ht;
-
-               inet_listen_lock(hashinfo);
-               for (i = s_i; i < INET_LHTABLE_SIZE; i++) {
-                       struct sock *sk;
-                       struct hlist_node *node;
-
-                       num = 0;
-                       sk_for_each(sk, node, &hashinfo->listening_hash[i]) {
-                               struct inet_sock *inet = inet_sk(sk);
-
-                               if (num < s_num) {
-                                       num++;
-                                       continue;
-                               }
-
-                               if (r->id.idiag_sport != inet->sport &&
-                                   r->id.idiag_sport)
-                                       goto next_listen;
-
-                               if (!(r->idiag_states & TCPF_LISTEN) ||
-                                   r->id.idiag_dport ||
-                                   cb->args[3] > 0)
-                                       goto syn_recv;
-
-                               if (inet_diag_dump_sock(skb, sk, cb) < 0) {
-                                       inet_listen_unlock(hashinfo);
-                                       goto done;
-                               }
-
-syn_recv:
-                               if (!(r->idiag_states & TCPF_SYN_RECV))
-                                       goto next_listen;
-
-                               if (inet_diag_dump_reqs(skb, sk, cb) < 0) {
-                                       inet_listen_unlock(hashinfo);
-                                       goto done;
-                               }
-
-next_listen:
-                               cb->args[3] = 0;
-                               cb->args[4] = 0;
-                               ++num;
-                       }
-
-                       s_num = 0;
-                       cb->args[3] = 0;
-                       cb->args[4] = 0;
-               }
-               inet_listen_unlock(hashinfo);
-skip_listen_ht:
-               cb->args[0] = 1;
-               s_i = num = s_num = 0;
-       }
-
-       if (!(r->idiag_states & ~(TCPF_LISTEN | TCPF_SYN_RECV)))
-               return skb->len;
-
-       for (i = s_i; i < hashinfo->ehash_size; i++) {
-               struct inet_ehash_bucket *head = &hashinfo->ehash[i];
-               struct sock *sk;
-               struct hlist_node *node;
-
-               if (i > s_i)
-                       s_num = 0;
-
-               read_lock_bh(&head->lock);
-
-               num = 0;
-               sk_for_each(sk, node, &head->chain) {
-                       struct inet_sock *inet = inet_sk(sk);
-
-                       if (num < s_num)
-                               goto next_normal;
-                       if (!(r->idiag_states & (1 << sk->sk_state)))
-                               goto next_normal;
-                       if (r->id.idiag_sport != inet->sport &&
-                           r->id.idiag_sport)
-                               goto next_normal;
-                       if (r->id.idiag_dport != inet->dport && r->id.idiag_dport)
-                               goto next_normal;
-                       if (inet_diag_dump_sock(skb, sk, cb) < 0) {
-                               read_unlock_bh(&head->lock);
-                               goto done;
-                       }
-next_normal:
-                       ++num;
-               }
-
-               if (r->idiag_states & TCPF_TIME_WAIT) {
-                       sk_for_each(sk, node,
-                                   &hashinfo->ehash[i + hashinfo->ehash_size].chain) {
-                               struct inet_sock *inet = inet_sk(sk);
-
-                               if (num < s_num)
-                                       goto next_dying;
-                               if (r->id.idiag_sport != inet->sport &&
-                                   r->id.idiag_sport)
-                                       goto next_dying;
-                               if (r->id.idiag_dport != inet->dport &&
-                                   r->id.idiag_dport)
-                                       goto next_dying;
-                               if (inet_diag_dump_sock(skb, sk, cb) < 0) {
-                                       read_unlock_bh(&head->lock);
-                                       goto done;
-                               }
-next_dying:
-                               ++num;
-                       }
-               }
-               read_unlock_bh(&head->lock);
-       }
-
-done:
-       cb->args[1] = i;
-       cb->args[2] = num;
-       return skb->len;
-}
-
-static int inet_diag_dump_done(struct netlink_callback *cb)
-{
-       return 0;
-}
-
-
-static __inline__ int
-inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
-{
-       if (!(nlh->nlmsg_flags&NLM_F_REQUEST))
-               return 0;
-
-       if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX)
-               goto err_inval;
-
-       if (inet_diag_table[nlh->nlmsg_type] == NULL)
-               return -ENOENT;
-
-       if (NLMSG_LENGTH(sizeof(struct inet_diag_req)) > skb->len)
-               goto err_inval;
-
-       if (nlh->nlmsg_flags&NLM_F_DUMP) {
-               if (nlh->nlmsg_len >
-                   (4 + NLMSG_SPACE(sizeof(struct inet_diag_req)))) {
-                       struct rtattr *rta = (void *)(NLMSG_DATA(nlh) +
-                                                sizeof(struct inet_diag_req));
-                       if (rta->rta_type != INET_DIAG_REQ_BYTECODE ||
-                           rta->rta_len < 8 ||
-                           rta->rta_len >
-                           (nlh->nlmsg_len -
-                            NLMSG_SPACE(sizeof(struct inet_diag_req))))
-                               goto err_inval;
-                       if (inet_diag_bc_audit(RTA_DATA(rta), RTA_PAYLOAD(rta)))
-                               goto err_inval;
-               }
-               return netlink_dump_start(idiagnl, skb, nlh,
-                                         inet_diag_dump,
-                                         inet_diag_dump_done);
-       } else {
-               return inet_diag_get_exact(skb, nlh);
-       }
-
-err_inval:
-       return -EINVAL;
-}
-
-
-static inline void inet_diag_rcv_skb(struct sk_buff *skb)
-{
-       int err;
-       struct nlmsghdr * nlh;
-
-       if (skb->len >= NLMSG_SPACE(0)) {
-               nlh = (struct nlmsghdr *)skb->data;
-               if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
-                       return;
-               err = inet_diag_rcv_msg(skb, nlh);
-               if (err || nlh->nlmsg_flags & NLM_F_ACK) 
-                       netlink_ack(skb, nlh, err);
-       }
-}
-
-static void inet_diag_rcv(struct sock *sk, int len)
-{
-       struct sk_buff *skb;
-       unsigned int qlen = skb_queue_len(&sk->sk_receive_queue);
-
-       while (qlen-- && (skb = skb_dequeue(&sk->sk_receive_queue))) {
-               inet_diag_rcv_skb(skb);
-               kfree_skb(skb);
-       }
-}
-
-static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
-                             void *_info)
-{
-       const struct tcp_sock *tp = tcp_sk(sk);
-       struct tcp_info *info = _info;
-
-       r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
-       r->idiag_wqueue = tp->write_seq - tp->snd_una;
-       if (info != NULL)
-               tcp_get_info(sk, info);
-}
-
-static struct inet_diag_handler tcp_diag_handler = {
-       .idiag_hashinfo  = &tcp_hashinfo,
-       .idiag_get_info  = tcp_diag_get_info,
-       .idiag_type      = TCPDIAG_GETSOCK,
-       .idiag_info_size = sizeof(struct tcp_info),
-};
-
-static DEFINE_SPINLOCK(inet_diag_register_lock);
-
-int inet_diag_register(const struct inet_diag_handler *h)
-{
-       const __u16 type = h->idiag_type;
-       int err = -EINVAL;
-
-       if (type >= INET_DIAG_GETSOCK_MAX)
-               goto out;
-
-       spin_lock(&inet_diag_register_lock);
-       err = -EEXIST;
-       if (inet_diag_table[type] == NULL) {
-               inet_diag_table[type] = h;
-               err = 0;
-       }
-       spin_unlock(&inet_diag_register_lock);
-out:
-       return err;
-}
-EXPORT_SYMBOL_GPL(inet_diag_register);
-
-void inet_diag_unregister(const struct inet_diag_handler *h)
-{
-       const __u16 type = h->idiag_type;
-
-       if (type >= INET_DIAG_GETSOCK_MAX)
-               return;
-
-       spin_lock(&inet_diag_register_lock);
-       inet_diag_table[type] = NULL;
-       spin_unlock(&inet_diag_register_lock);
-
-       synchronize_rcu();
-}
-EXPORT_SYMBOL_GPL(inet_diag_unregister);
-
-static int __init inet_diag_init(void)
-{
-       const int inet_diag_table_size = (INET_DIAG_GETSOCK_MAX *
-                                         sizeof(struct inet_diag_handler *));
-       int err = -ENOMEM;
-
-       inet_diag_table = kmalloc(inet_diag_table_size, GFP_KERNEL);
-       if (!inet_diag_table)
-               goto out;
-
-       memset(inet_diag_table, 0, inet_diag_table_size);
-
-       idiagnl = netlink_kernel_create(NETLINK_INET_DIAG, inet_diag_rcv,
-                                       THIS_MODULE);
-       if (idiagnl == NULL)
-               goto out_free_table;
-
-       err = inet_diag_register(&tcp_diag_handler);
-       if (err)
-               goto out_sock_release;
-out:
-       return err;
-out_sock_release:
-       sock_release(idiagnl->sk_socket);
-out_free_table:
-       kfree(inet_diag_table);
-       goto out;
-}
-
-static void __exit inet_diag_exit(void)
-{
-       sock_release(idiagnl->sk_socket);
-       kfree(inet_diag_table);
-}
-
-module_init(inet_diag_init);
-module_exit(inet_diag_exit);
-MODULE_LICENSE("GPL");
index 8cef9dc..93c5f92 100644 (file)
@@ -35,7 +35,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
-#include <linux/tcp_diag.h>
+#include <linux/inet_diag.h>
 
 #include <net/tcp.h>
 
index 3951003..0c340c3 100644 (file)
@@ -8,7 +8,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
-#include <linux/tcp_diag.h>
+#include <linux/inet_diag.h>
 #include <net/tcp.h>
 
 /* TCP Westwood structure */