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-rw-r--r--net/rxrpc/ar-proc.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
new file mode 100644
index 0000000..58f4b4e
--- /dev/null
+++ b/net/rxrpc/ar-proc.c
@@ -0,0 +1,247 @@
+/* /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",
+};
+
+const char *rxrpc_call_states[] = {
+ [RXRPC_CALL_CLIENT_SEND_REQUEST] = "ClSndReq",
+ [RXRPC_CALL_CLIENT_AWAIT_REPLY] = "ClAwtRpl",
+ [RXRPC_CALL_CLIENT_RECV_REPLY] = "ClRcvRpl",
+ [RXRPC_CALL_CLIENT_FINAL_ACK] = "ClFnlACK",
+ [RXRPC_CALL_SERVER_SECURING] = "SvSecure",
+ [RXRPC_CALL_SERVER_ACCEPTING] = "SvAccept",
+ [RXRPC_CALL_SERVER_RECV_REQUEST] = "SvRcvReq",
+ [RXRPC_CALL_SERVER_ACK_REQUEST] = "SvAckReq",
+ [RXRPC_CALL_SERVER_SEND_REPLY] = "SvSndRpl",
+ [RXRPC_CALL_SERVER_AWAIT_ACK] = "SvAwtACK",
+ [RXRPC_CALL_COMPLETE] = "Complete",
+ [RXRPC_CALL_SERVER_BUSY] = "SvBusy ",
+ [RXRPC_CALL_REMOTELY_ABORTED] = "RmtAbort",
+ [RXRPC_CALL_LOCALLY_ABORTED] = "LocAbort",
+ [RXRPC_CALL_NETWORK_ERROR] = "NetError",
+ [RXRPC_CALL_DEAD] = "Dead ",
+};
+
+/*
+ * 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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