diff options
Diffstat (limited to 'net/rxrpc/proc.c')
| -rw-r--r-- | net/rxrpc/proc.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c new file mode 100644 index 000000000000..ced5f07444e5 --- /dev/null +++ b/net/rxrpc/proc.c @@ -0,0 +1,192 @@ +/* /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 *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { + [RXRPC_CONN_UNUSED] = "Unused ", + [RXRPC_CONN_CLIENT] = "Client ", + [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", + [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", + [RXRPC_CONN_SERVICE] = "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) +{ + read_lock(&rxrpc_call_lock); + return seq_list_start_head(&rxrpc_calls, *_pos); +} + +static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return seq_list_next(v, &rxrpc_calls, pos); +} + +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_connection *conn; + struct rxrpc_call *call; + char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; + + if (v == &rxrpc_calls) { + 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); + + sprintf(lbuff, "%pI4:%u", + &call->local->srx.transport.sin.sin_addr, + ntohs(call->local->srx.transport.sin.sin_port)); + + conn = call->conn; + if (conn) + sprintf(rbuff, "%pI4:%u", + &conn->params.peer->srx.transport.sin.sin_addr, + ntohs(conn->params.peer->srx.transport.sin.sin_port)); + else + strcpy(rbuff, "no_connection"); + + seq_printf(seq, + "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" + " %-8.8s %08x %lx\n", + lbuff, + rbuff, + call->service_id, + call->cid, + call->call_id, + call->in_clientflag ? "Svc" : "Clt", + atomic_read(&call->usage), + rxrpc_call_states[call->state], + call->remote_abort ?: call->local_abort, + call->user_call_ID); + + return 0; +} + +static const 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); +} + +const struct file_operations rxrpc_call_seq_fops = { + .owner = THIS_MODULE, + .open = rxrpc_call_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * 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) +{ + read_lock(&rxrpc_connection_lock); + return seq_list_start_head(&rxrpc_connections, *_pos); +} + +static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, + loff_t *pos) +{ + return seq_list_next(v, &rxrpc_connections, pos); +} + +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; + char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; + + if (v == &rxrpc_connections) { + seq_puts(seq, + "Proto Local Remote " + " SvID ConnID End Use State Key " + " Serial ISerial\n" + ); + return 0; + } + + conn = list_entry(v, struct rxrpc_connection, link); + + sprintf(lbuff, "%pI4:%u", + &conn->params.local->srx.transport.sin.sin_addr, + ntohs(conn->params.local->srx.transport.sin.sin_port)); + + sprintf(rbuff, "%pI4:%u", + &conn->params.peer->srx.transport.sin.sin_addr, + ntohs(conn->params.peer->srx.transport.sin.sin_port)); + + seq_printf(seq, + "UDP %-22.22s %-22.22s %4x %08x %s %3u" + " %s %08x %08x %08x\n", + lbuff, + rbuff, + conn->params.service_id, + conn->proto.cid, + rxrpc_conn_is_service(conn) ? "Svc" : "Clt", + atomic_read(&conn->usage), + rxrpc_conn_states[conn->state], + key_serial(conn->params.key), + atomic_read(&conn->serial), + atomic_read(&conn->hi_serial)); + + return 0; +} + +static const 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); +} + +const struct file_operations rxrpc_connection_seq_fops = { + .owner = THIS_MODULE, + .open = rxrpc_connection_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; |