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/* /proc/net/ support for AF_RXRPC
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* 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/module.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include "ar-internal.h"
static const char *rxrpc_conn_states[] = {
[RXRPC_CONN_UNUSED] = "Unused ",
[RXRPC_CONN_CLIENT] = "Client ",
[RXRPC_CONN_SERVER_UNSECURED] = "SvUnsec ",
[RXRPC_CONN_SERVER_CHALLENGING] = "SvChall ",
[RXRPC_CONN_SERVER] = "SvSecure",
[RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort",
[RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort",
[RXRPC_CONN_NETWORK_ERROR] = "NetError",
};
/*
* generate a list of extant and dead calls in /proc/net/rxrpc_calls
*/
static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
{
struct list_head *_p;
loff_t pos = *_pos;
read_lock(&rxrpc_call_lock);
if (!pos)
return SEQ_START_TOKEN;
pos--;
list_for_each(_p, &rxrpc_calls)
if (!pos--)
break;
return _p != &rxrpc_calls ? _p : NULL;
}
static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct list_head *_p;
(*pos)++;
_p = v;
_p = (v == SEQ_START_TOKEN) ? rxrpc_calls.next : _p->next;
return _p != &rxrpc_calls ? _p : NULL;
}
static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
{
read_unlock(&rxrpc_call_lock);
}
static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
{
struct rxrpc_transport *trans;
struct rxrpc_call *call;
char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
if (v == SEQ_START_TOKEN) {
seq_puts(seq,
"Proto Local Remote "
" SvID ConnID CallID End Use State Abort "
" UserID\n");
return 0;
}
call = list_entry(v, struct rxrpc_call, link);
trans = call->conn->trans;
sprintf(lbuff, NIPQUAD_FMT":%u",
NIPQUAD(trans->local->srx.transport.sin.sin_addr),
ntohs(trans->local->srx.transport.sin.sin_port));
sprintf(rbuff, NIPQUAD_FMT":%u",
NIPQUAD(trans->peer->srx.transport.sin.sin_addr),
ntohs(trans->peer->srx.transport.sin.sin_port));
seq_printf(seq,
"UDP %-22.22s %-22.22s %4x %08x %08x %s %3u"
" %-8.8s %08x %lx\n",
lbuff,
rbuff,
ntohs(call->conn->service_id),
ntohl(call->conn->cid),
ntohl(call->call_id),
call->conn->in_clientflag ? "Svc" : "Clt",
atomic_read(&call->usage),
rxrpc_call_states[call->state],
call->abort_code,
call->user_call_ID);
return 0;
}
static struct seq_operations rxrpc_call_seq_ops = {
.start = rxrpc_call_seq_start,
.next = rxrpc_call_seq_next,
.stop = rxrpc_call_seq_stop,
.show = rxrpc_call_seq_show,
};
static int rxrpc_call_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rxrpc_call_seq_ops);
}
struct file_operations rxrpc_call_seq_fops = {
.owner = THIS_MODULE,
.open = rxrpc_call_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
};
/*
* generate a list of extant virtual connections in /proc/net/rxrpc_conns
*/
static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
{
struct list_head *_p;
loff_t pos = *_pos;
read_lock(&rxrpc_connection_lock);
if (!pos)
return SEQ_START_TOKEN;
pos--;
list_for_each(_p, &rxrpc_connections)
if (!pos--)
break;
return _p != &rxrpc_connections ? _p : NULL;
}
static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
loff_t *pos)
{
struct list_head *_p;
(*pos)++;
_p = v;
_p = (v == SEQ_START_TOKEN) ? rxrpc_connections.next : _p->next;
return _p != &rxrpc_connections ? _p : NULL;
}
static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
{
read_unlock(&rxrpc_connection_lock);
}
static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
{
struct rxrpc_connection *conn;
struct rxrpc_transport *trans;
char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
if (v == SEQ_START_TOKEN) {
seq_puts(seq,
"Proto Local Remote "
" SvID ConnID Calls End Use State Key "
" Serial ISerial\n"
);
return 0;
}
conn = list_entry(v, struct rxrpc_connection, link);
trans = conn->trans;
sprintf(lbuff, NIPQUAD_FMT":%u",
NIPQUAD(trans->local->srx.transport.sin.sin_addr),
ntohs(trans->local->srx.transport.sin.sin_port));
sprintf(rbuff, NIPQUAD_FMT":%u",
NIPQUAD(trans->peer->srx.transport.sin.sin_addr),
ntohs(trans->peer->srx.transport.sin.sin_port));
seq_printf(seq,
"UDP %-22.22s %-22.22s %4x %08x %08x %s %3u"
" %s %08x %08x %08x\n",
lbuff,
rbuff,
ntohs(conn->service_id),
ntohl(conn->cid),
conn->call_counter,
conn->in_clientflag ? "Svc" : "Clt",
atomic_read(&conn->usage),
rxrpc_conn_states[conn->state],
key_serial(conn->key),
atomic_read(&conn->serial),
atomic_read(&conn->hi_serial));
return 0;
}
static struct seq_operations rxrpc_connection_seq_ops = {
.start = rxrpc_connection_seq_start,
.next = rxrpc_connection_seq_next,
.stop = rxrpc_connection_seq_stop,
.show = rxrpc_connection_seq_show,
};
static int rxrpc_connection_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rxrpc_connection_seq_ops);
}
struct file_operations rxrpc_connection_seq_fops = {
.owner = THIS_MODULE,
.open = rxrpc_connection_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
};
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