Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)    BNEP implementation for Linux Bluetooth stack (BlueZ).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)    Copyright (C) 2001-2002 Inventel Systemes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)    Written 2001-2002 by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 	David Libault  <david.libault@inventel.fr>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)    Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)    This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)    it under the terms of the GNU General Public License version 2 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)    published by the Free Software Foundation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)    SOFTWARE IS DISCLAIMED.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include "bnep.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) static struct bt_sock_list bnep_sk_list = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	.lock = __RW_LOCK_UNLOCKED(bnep_sk_list.lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) static int bnep_sock_release(struct socket *sock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	struct sock *sk = sock->sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	BT_DBG("sock %p sk %p", sock, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	if (!sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	bt_sock_unlink(&bnep_sk_list, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	sock_orphan(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) static int do_bnep_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct bnep_connlist_req cl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct bnep_connadd_req  ca;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	struct bnep_conndel_req  cd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	struct bnep_conninfo ci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	struct socket *nsock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	__u32 supp_feat = BIT(BNEP_SETUP_RESPONSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	BT_DBG("cmd %x arg %p", cmd, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	case BNEPCONNADD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 			return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		if (copy_from_user(&ca, argp, sizeof(ca)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		nsock = sockfd_lookup(ca.sock, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		if (!nsock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		if (nsock->sk->sk_state != BT_CONNECTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			sockfd_put(nsock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			return -EBADFD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		ca.device[sizeof(ca.device)-1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		err = bnep_add_connection(&ca, nsock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			if (copy_to_user(argp, &ca, sizeof(ca)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 				err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			sockfd_put(nsock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	case BNEPCONNDEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		if (copy_from_user(&cd, argp, sizeof(cd)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		return bnep_del_connection(&cd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	case BNEPGETCONNLIST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		if (copy_from_user(&cl, argp, sizeof(cl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		if (cl.cnum <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		err = bnep_get_connlist(&cl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		if (!err && copy_to_user(argp, &cl, sizeof(cl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	case BNEPGETCONNINFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		if (copy_from_user(&ci, argp, sizeof(ci)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		err = bnep_get_conninfo(&ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		if (!err && copy_to_user(argp, &ci, sizeof(ci)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	case BNEPGETSUPPFEAT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		if (copy_to_user(argp, &supp_feat, sizeof(supp_feat)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	return do_bnep_sock_ioctl(sock, cmd, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	void __user *argp = compat_ptr(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (cmd == BNEPGETCONNLIST) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		struct bnep_connlist_req cl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		unsigned __user *p = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		u32 uci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		if (get_user(cl.cnum, p) || get_user(uci, p + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		cl.ci = compat_ptr(uci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		if (cl.cnum <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		err = bnep_get_connlist(&cl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		if (!err && put_user(cl.cnum, p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	return do_bnep_sock_ioctl(sock, cmd, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static const struct proto_ops bnep_sock_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	.family		= PF_BLUETOOTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	.release	= bnep_sock_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	.ioctl		= bnep_sock_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	.compat_ioctl	= bnep_sock_compat_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	.bind		= sock_no_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	.getname	= sock_no_getname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	.sendmsg	= sock_no_sendmsg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	.recvmsg	= sock_no_recvmsg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	.listen		= sock_no_listen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	.shutdown	= sock_no_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	.connect	= sock_no_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	.socketpair	= sock_no_socketpair,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	.accept		= sock_no_accept,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	.mmap		= sock_no_mmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static struct proto bnep_proto = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	.name		= "BNEP",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	.obj_size	= sizeof(struct bt_sock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			    int kern)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	BT_DBG("sock %p", sock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (sock->type != SOCK_RAW)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		return -ESOCKTNOSUPPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, kern);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (!sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	sock_init_data(sock, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	sock->ops = &bnep_sock_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	sock->state = SS_UNCONNECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	sock_reset_flag(sk, SOCK_ZAPPED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	sk->sk_protocol = protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	sk->sk_state	= BT_OPEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	bt_sock_link(&bnep_sk_list, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static const struct net_proto_family bnep_sock_family_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	.family = PF_BLUETOOTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	.owner	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	.create = bnep_sock_create
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int __init bnep_sock_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	err = proto_register(&bnep_proto, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		BT_ERR("Can't register BNEP socket");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	err = bt_procfs_init(&init_net, "bnep", &bnep_sk_list, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		BT_ERR("Failed to create BNEP proc file");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		bt_sock_unregister(BTPROTO_BNEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	BT_INFO("BNEP socket layer initialized");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	proto_unregister(&bnep_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) void __exit bnep_sock_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	bt_procfs_cleanup(&init_net, "bnep");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	bt_sock_unregister(BTPROTO_BNEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	proto_unregister(&bnep_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }