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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * This file implements the various access functions for the * PROC file system. This is very similar to the IPv4 version, * except it reports the sockets in the INET6 address family. * * Version: $Id: proc.c,v 1.4 1997/04/20 22:50:44 schenk Exp $ * * Authors: David S. Miller (davem@caip.rutgers.edu) * * 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/sched.h> #include <linux/socket.h> #include <linux/net.h> #include <linux/in6.h> #include <net/sock.h> #include <net/transp_v6.h> /* This is the main implementation workhorse of all these routines. */ static int get__netinfo6(struct proto *pro, char *buffer, int format, char **start, off_t offset, int length) { struct sock *sp; struct tcp_opt *tp; int timer_active, timer_active1, timer_active2; unsigned long timer_expires; struct in6_addr *dest, *src; unsigned short destp, srcp; int len = 0, i = 0; off_t pos = 0; off_t begin; char tmpbuf[150]; if(offset < 149) len += sprintf(buffer, "%-148s\n", " sl " /* 6 */ "local_address " /* 38 */ "remote_address " /* 38 */ "st tx_queue rx_queue tr tm->when retrnsmt" /* 41 */ " uid timeout inode"); /* 21 */ /*----*/ /*144 */ pos = 149; SOCKHASH_LOCK(); sp = pro->sklist_next; while(sp != (struct sock *)pro) { pos += 149; if(pos < offset) goto next; tp = &(sp->tp_pinfo.af_tcp); dest = &sp->net_pinfo.af_inet6.daddr; src = &sp->net_pinfo.af_inet6.rcv_saddr; destp = ntohs(sp->dummy_th.dest); srcp = ntohs(sp->dummy_th.source); timer_active1 = del_timer(&tp->retransmit_timer); timer_active2 = del_timer(&sp->timer); if(!timer_active1) tp->retransmit_timer.expires = 0; if(!timer_active2) sp->timer.expires = 0; timer_active = 0; timer_expires = (unsigned) -1; if(timer_active1 && tp->retransmit_timer.expires < timer_expires) { timer_active = timer_active1; timer_expires = tp->retransmit_timer.expires; } if(timer_active2 && sp->timer.expires < timer_expires) { timer_active = timer_active2; timer_expires = sp->timer.expires; } sprintf(tmpbuf, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " "%02X %08X:%08X %02X:%08lX %08X %5d %8d %ld", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], destp, sp->state, format==0?sp->write_seq-tp->snd_una:atomic_read(&sp->wmem_alloc), format==0?tp->rcv_nxt-sp->copied_seq:atomic_read(&sp->rmem_alloc), timer_active, timer_expires-jiffies, tp->retransmits, sp->socket ? sp->socket->inode->i_uid:0, timer_active?sp->timeout:0, sp->socket ? sp->socket->inode->i_ino:0); if(timer_active1) add_timer(&tp->retransmit_timer); if(timer_active2) add_timer(&sp->timer); len += sprintf(buffer+len, "%-148s\n", tmpbuf); if(len >= length) break; next: sp = sp->sklist_next; i++; } SOCKHASH_UNLOCK(); begin = len - (pos - offset); *start = buffer + begin; len -= begin; if(len > length) len = length; return len; } /* These get exported and registered with procfs in af_inet6.c at init time. */ int tcp6_get_info(char *buffer, char **start, off_t offset, int length, int dummy) { return get__netinfo6(&tcpv6_prot, buffer, 0, start, offset, length); } int udp6_get_info(char *buffer, char **start, off_t offset, int length, int dummy) { return get__netinfo6(&udpv6_prot, buffer, 1, start, offset, length); } int raw6_get_info(char *buffer, char **start, off_t offset, int length, int dummy) { return get__netinfo6(&rawv6_prot, buffer, 1, start, offset, length); } int afinet6_get_info(char *buffer, char **start, off_t offset, int length, int dummy) { int len = 0; len += sprintf(buffer+len, "TCP6: inuse %d highest %d\n", tcpv6_prot.inuse, tcpv6_prot.highestinuse); len += sprintf(buffer+len, "UDP6: inuse %d highest %d\n", udpv6_prot.inuse, udpv6_prot.highestinuse); len += sprintf(buffer+len, "RAW6: inuse %d highest %d\n", rawv6_prot.inuse, rawv6_prot.highestinuse); *start = buffer + offset; len -= offset; if(len > length) len = length; return len; } |