linux/net/rxrpc/ar-proc.c
<<
>>
Prefs
   1/* /proc/net/ support for AF_RXRPC
   2 *
   3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4 * Written by David Howells (dhowells@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the License, or (at your option) any later version.
  10 */
  11
  12#include <linux/module.h>
  13#include <net/sock.h>
  14#include <net/af_rxrpc.h>
  15#include "ar-internal.h"
  16
  17static const char *const rxrpc_conn_states[] = {
  18        [RXRPC_CONN_UNUSED]             = "Unused  ",
  19        [RXRPC_CONN_CLIENT]             = "Client  ",
  20        [RXRPC_CONN_SERVER_UNSECURED]   = "SvUnsec ",
  21        [RXRPC_CONN_SERVER_CHALLENGING] = "SvChall ",
  22        [RXRPC_CONN_SERVER]             = "SvSecure",
  23        [RXRPC_CONN_REMOTELY_ABORTED]   = "RmtAbort",
  24        [RXRPC_CONN_LOCALLY_ABORTED]    = "LocAbort",
  25        [RXRPC_CONN_NETWORK_ERROR]      = "NetError",
  26};
  27
  28/*
  29 * generate a list of extant and dead calls in /proc/net/rxrpc_calls
  30 */
  31static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
  32{
  33        read_lock(&rxrpc_call_lock);
  34        return seq_list_start_head(&rxrpc_calls, *_pos);
  35}
  36
  37static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
  38{
  39        return seq_list_next(v, &rxrpc_calls, pos);
  40}
  41
  42static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
  43{
  44        read_unlock(&rxrpc_call_lock);
  45}
  46
  47static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
  48{
  49        struct rxrpc_transport *trans;
  50        struct rxrpc_call *call;
  51        char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
  52
  53        if (v == &rxrpc_calls) {
  54                seq_puts(seq,
  55                         "Proto Local                  Remote                "
  56                         " SvID ConnID   CallID   End Use State    Abort   "
  57                         " UserID\n");
  58                return 0;
  59        }
  60
  61        call = list_entry(v, struct rxrpc_call, link);
  62        trans = call->conn->trans;
  63
  64        sprintf(lbuff, "%pI4:%u",
  65                &trans->local->srx.transport.sin.sin_addr,
  66                ntohs(trans->local->srx.transport.sin.sin_port));
  67
  68        sprintf(rbuff, "%pI4:%u",
  69                &trans->peer->srx.transport.sin.sin_addr,
  70                ntohs(trans->peer->srx.transport.sin.sin_port));
  71
  72        seq_printf(seq,
  73                   "UDP   %-22.22s %-22.22s %4x %08x %08x %s %3u"
  74                   " %-8.8s %08x %lx\n",
  75                   lbuff,
  76                   rbuff,
  77                   ntohs(call->conn->service_id),
  78                   ntohl(call->conn->cid),
  79                   ntohl(call->call_id),
  80                   call->conn->in_clientflag ? "Svc" : "Clt",
  81                   atomic_read(&call->usage),
  82                   rxrpc_call_states[call->state],
  83                   call->abort_code,
  84                   call->user_call_ID);
  85
  86        return 0;
  87}
  88
  89static const struct seq_operations rxrpc_call_seq_ops = {
  90        .start  = rxrpc_call_seq_start,
  91        .next   = rxrpc_call_seq_next,
  92        .stop   = rxrpc_call_seq_stop,
  93        .show   = rxrpc_call_seq_show,
  94};
  95
  96static int rxrpc_call_seq_open(struct inode *inode, struct file *file)
  97{
  98        return seq_open(file, &rxrpc_call_seq_ops);
  99}
 100
 101const struct file_operations rxrpc_call_seq_fops = {
 102        .owner          = THIS_MODULE,
 103        .open           = rxrpc_call_seq_open,
 104        .read           = seq_read,
 105        .llseek         = seq_lseek,
 106        .release        = seq_release,
 107};
 108
 109/*
 110 * generate a list of extant virtual connections in /proc/net/rxrpc_conns
 111 */
 112static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
 113{
 114        read_lock(&rxrpc_connection_lock);
 115        return seq_list_start_head(&rxrpc_connections, *_pos);
 116}
 117
 118static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
 119                                       loff_t *pos)
 120{
 121        return seq_list_next(v, &rxrpc_connections, pos);
 122}
 123
 124static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
 125{
 126        read_unlock(&rxrpc_connection_lock);
 127}
 128
 129static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
 130{
 131        struct rxrpc_connection *conn;
 132        struct rxrpc_transport *trans;
 133        char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
 134
 135        if (v == &rxrpc_connections) {
 136                seq_puts(seq,
 137                         "Proto Local                  Remote                "
 138                         " SvID ConnID   Calls    End Use State    Key     "
 139                         " Serial   ISerial\n"
 140                         );
 141                return 0;
 142        }
 143
 144        conn = list_entry(v, struct rxrpc_connection, link);
 145        trans = conn->trans;
 146
 147        sprintf(lbuff, "%pI4:%u",
 148                &trans->local->srx.transport.sin.sin_addr,
 149                ntohs(trans->local->srx.transport.sin.sin_port));
 150
 151        sprintf(rbuff, "%pI4:%u",
 152                &trans->peer->srx.transport.sin.sin_addr,
 153                ntohs(trans->peer->srx.transport.sin.sin_port));
 154
 155        seq_printf(seq,
 156                   "UDP   %-22.22s %-22.22s %4x %08x %08x %s %3u"
 157                   " %s %08x %08x %08x\n",
 158                   lbuff,
 159                   rbuff,
 160                   ntohs(conn->service_id),
 161                   ntohl(conn->cid),
 162                   conn->call_counter,
 163                   conn->in_clientflag ? "Svc" : "Clt",
 164                   atomic_read(&conn->usage),
 165                   rxrpc_conn_states[conn->state],
 166                   key_serial(conn->key),
 167                   atomic_read(&conn->serial),
 168                   atomic_read(&conn->hi_serial));
 169
 170        return 0;
 171}
 172
 173static const struct seq_operations rxrpc_connection_seq_ops = {
 174        .start  = rxrpc_connection_seq_start,
 175        .next   = rxrpc_connection_seq_next,
 176        .stop   = rxrpc_connection_seq_stop,
 177        .show   = rxrpc_connection_seq_show,
 178};
 179
 180
 181static int rxrpc_connection_seq_open(struct inode *inode, struct file *file)
 182{
 183        return seq_open(file, &rxrpc_connection_seq_ops);
 184}
 185
 186const struct file_operations rxrpc_connection_seq_fops = {
 187        .owner          = THIS_MODULE,
 188        .open           = rxrpc_connection_seq_open,
 189        .read           = seq_read,
 190        .llseek         = seq_lseek,
 191        .release        = seq_release,
 192};
 193
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.