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