root/net/inet/proc.c

/* [previous][next][first][last][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. get__netinfo
  2. tcp_get_info
  3. udp_get_info
  4. raw_get_info

   1 /*
   2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
   3  *              operating system.  INET is implemented using the  BSD Socket
   4  *              interface as the means of communication with the user level.
   5  *
   6  *              This file implements the various access functions for the
   7  *              PROC file system.  It is mainly used for debugging and
   8  *              statistics.
   9  *
  10  * Version:     @(#)proc.c      1.0.5   05/27/93
  11  *
  12  * Authors:     Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  13  *              Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de>
  14  *              Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de>
  15  *
  16  *              This program is free software; you can redistribute it and/or
  17  *              modify it under the terms of the GNU General Public License
  18  *              as published by the Free Software Foundation; either version
  19  *              2 of the License, or (at your option) any later version.
  20  */
  21 #include <asm/system.h>
  22 #include <linux/autoconf.h>
  23 #include <linux/sched.h>
  24 #include <linux/socket.h>
  25 #include <linux/net.h>
  26 #include <linux/un.h>
  27 #include <linux/in.h>
  28 #include <linux/param.h>
  29 #include "inet.h"
  30 #include "dev.h"
  31 #include "ip.h"
  32 #include "protocol.h"
  33 #include "tcp.h"
  34 #include "udp.h"
  35 #include "skbuff.h"
  36 #include "sock.h"
  37 #include "raw.h"
  38 
  39 /*
  40  * Get__netinfo returns the length of that string.
  41  *
  42  * KNOWN BUGS
  43  *  As in get_unix_netinfo, the buffer might be too small. If this
  44  *  happens, get__netinfo returns only part of the available infos.
  45  */
  46 static int
  47 get__netinfo(struct proto *pro, char *buffer)
     /* [previous][next][first][last][top][bottom][index][help] */
  48 {
  49   struct sock **s_array;
  50   struct sock *sp;
  51   char *pos=buffer;
  52   int i;
  53   int timer_active;
  54   unsigned long  dest, src;
  55   unsigned short destp, srcp;
  56 
  57   s_array = pro->sock_array;
  58   pos+=sprintf(pos, "sl  local_address rem_address   st tx_queue rx_queue tr tm->when\n");
  59   for(i = 0; i < SOCK_ARRAY_SIZE; i++) {
  60         sp = s_array[i];
  61         while(sp != NULL) {
  62                 dest  = sp->daddr;
  63                 src   = sp->saddr;
  64                 destp = sp->dummy_th.dest;
  65                 srcp  = sp->dummy_th.source;
  66 
  67                 /* Since we are Little Endian we need to swap the bytes :-( */
  68                 destp = ntohs(destp);
  69                 srcp  = ntohs(srcp);
  70 
  71                 timer_active = del_timer(&sp->timer);
  72                 if (!timer_active)
  73                         sp->timer.expires = 0;
  74                 pos+=sprintf(pos, "%2d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08X %02X\n",
  75                         i, src, srcp, dest, destp, sp->state, 
  76                         sp->send_seq-sp->rcv_ack_seq, sp->acked_seq-sp->copied_seq,
  77                         timer_active, sp->timer.expires, sp->retransmits);
  78                 if (timer_active)
  79                         add_timer(&sp->timer);
  80 
  81                 /* Is place in buffer too rare? then abort. */
  82                 if (pos > buffer+PAGE_SIZE-80) {
  83                         printk("oops, too many %s sockets for netinfo.\n",
  84                                         pro->name);
  85                         return(strlen(buffer));
  86                 }
  87 
  88                 /*
  89                  * All sockets with (port mod SOCK_ARRAY_SIZE) = i
  90                  * are kept in sock_array[i], so we must follow the
  91                  * 'next' link to get them all.
  92                  */
  93                 sp = sp->next;
  94         }
  95   }
  96   return(strlen(buffer));
  97 } 
  98 
  99 
 100 int tcp_get_info(char *buffer)
     /* [previous][next][first][last][top][bottom][index][help] */
 101 {
 102   return get__netinfo(&tcp_prot, buffer);
 103 }
 104 
 105 
 106 int udp_get_info(char *buffer)
     /* [previous][next][first][last][top][bottom][index][help] */
 107 {
 108   return get__netinfo(&udp_prot, buffer);
 109 }
 110 
 111 
 112 int raw_get_info(char *buffer)
     /* [previous][next][first][last][top][bottom][index][help] */
 113 {
 114   return get__netinfo(&raw_prot, buffer);
 115 }

/* [previous][next][first][last][top][bottom][index][help] */