l2cap_proc.c
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上传日期:2013-02-24
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- /*
- BlueZ - Bluetooth protocol stack for Linux
- Copyright (C) 2000-2001 Qualcomm Incorporated
- Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
- */
- /*
- * BlueZ L2CAP proc fs support.
- *
- * $Id: l2cap_proc.c,v 1.2 2001/06/02 01:40:09 maxk Exp $
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <linux/errno.h>
- #include <linux/kernel.h>
- #include <linux/major.h>
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/poll.h>
- #include <linux/fcntl.h>
- #include <linux/init.h>
- #include <linux/skbuff.h>
- #include <linux/interrupt.h>
- #include <linux/socket.h>
- #include <linux/skbuff.h>
- #include <linux/proc_fs.h>
- #include <linux/list.h>
- #include <net/sock.h>
- #include <asm/system.h>
- #include <asm/uaccess.h>
- #include <net/bluetooth/bluez.h>
- #include <net/bluetooth/bluetooth.h>
- #include <net/bluetooth/hci_core.h>
- #include <net/bluetooth/l2cap_core.h>
- #ifndef L2CAP_DEBUG
- #undef DBG
- #define DBG( A... )
- #endif
- /* ----- PROC fs support ----- */
- static int l2cap_conn_dump(char *buf, struct l2cap_iff *iff)
- {
- struct list_head *p;
- char *ptr = buf;
- list_for_each(p, &iff->conn_list) {
- struct l2cap_conn *c;
- c = list_entry(p, struct l2cap_conn, list);
- ptr += sprintf(ptr, " %p %d %p %p %s %sn",
- c, c->state, c->iff, c->hconn, batostr(&c->src), batostr(&c->dst));
- }
- return ptr - buf;
- }
- static int l2cap_iff_dump(char *buf)
- {
- struct list_head *p;
- char *ptr = buf;
- ptr += sprintf(ptr, "Interfaces:n");
- write_lock(&l2cap_rt_lock);
- list_for_each(p, &l2cap_iff_list) {
- struct l2cap_iff *iff;
- iff = list_entry(p, struct l2cap_iff, list);
- ptr += sprintf(ptr, " %s %p %pn", iff->hdev->name, iff, iff->hdev);
-
- l2cap_iff_lock(iff);
- ptr += l2cap_conn_dump(ptr, iff);
- l2cap_iff_unlock(iff);
- }
- write_unlock(&l2cap_rt_lock);
- ptr += sprintf(ptr, "n");
- return ptr - buf;
- }
- static int l2cap_sock_dump(char *buf, struct bluez_sock_list *list)
- {
- struct l2cap_pinfo *pi;
- struct sock *sk;
- char *ptr = buf;
- ptr += sprintf(ptr, "Sockets:n");
- write_lock(&list->lock);
- for (sk = list->head; sk; sk = sk->next) {
- pi = l2cap_pi(sk);
- ptr += sprintf(ptr, " %p %d %p %d %s %s 0x%4.4x 0x%4.4x %d %dn", sk, sk->state, pi->conn, pi->psm,
- batostr(&pi->src), batostr(&pi->dst), pi->scid, pi->dcid, pi->imtu, pi->omtu );
- }
- write_unlock(&list->lock);
- ptr += sprintf(ptr, "n");
- return ptr - buf;
- }
- static int l2cap_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *priv)
- {
- char *ptr = buf;
- int len;
- DBG("count %d, offset %ld", count, offset);
- ptr += l2cap_iff_dump(ptr);
- ptr += l2cap_sock_dump(ptr, &l2cap_sk_list);
- len = ptr - buf;
- if (len <= count + offset)
- *eof = 1;
- *start = buf + offset;
- len -= offset;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
- return len;
- }
- void l2cap_register_proc(void)
- {
- create_proc_read_entry("bluetooth/l2cap", 0, 0, l2cap_read_proc, NULL);
- }
- void l2cap_unregister_proc(void)
- {
- remove_proc_entry("bluetooth/l2cap", NULL);
- }