Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)    HIDP implementation for Linux Bluetooth stack (BlueZ).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)    Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)    This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)    it under the terms of the GNU General Public License version 2 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)    published by the Free Software Foundation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)    SOFTWARE IS DISCLAIMED.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "hidp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) static struct bt_sock_list hidp_sk_list = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	.lock = __RW_LOCK_UNLOCKED(hidp_sk_list.lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) static int hidp_sock_release(struct socket *sock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct sock *sk = sock->sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	BT_DBG("sock %p sk %p", sock, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	if (!sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	bt_sock_unlink(&hidp_sk_list, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	sock_orphan(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) static int do_hidp_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct hidp_connadd_req ca;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct hidp_conndel_req cd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	struct hidp_connlist_req cl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct hidp_conninfo ci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct socket *csock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	struct socket *isock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	BT_DBG("cmd %x arg %p", cmd, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	case HIDPCONNADD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 			return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		if (copy_from_user(&ca, argp, sizeof(ca)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		csock = sockfd_lookup(ca.ctrl_sock, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		if (!csock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		isock = sockfd_lookup(ca.intr_sock, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		if (!isock) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			sockfd_put(csock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		ca.name[sizeof(ca.name)-1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		err = hidp_connection_add(&ca, csock, isock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		if (!err && copy_to_user(argp, &ca, sizeof(ca)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 			err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		sockfd_put(csock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		sockfd_put(isock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	case HIDPCONNDEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		if (copy_from_user(&cd, argp, sizeof(cd)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		return hidp_connection_del(&cd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	case HIDPGETCONNLIST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		if (copy_from_user(&cl, argp, sizeof(cl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		if (cl.cnum <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		err = hidp_get_connlist(&cl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		if (!err && copy_to_user(argp, &cl, sizeof(cl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	case HIDPGETCONNINFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		if (copy_from_user(&ci, argp, sizeof(ci)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		err = hidp_get_conninfo(&ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		if (!err && copy_to_user(argp, &ci, sizeof(ci)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return do_hidp_sock_ioctl(sock, cmd, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct compat_hidp_connadd_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int   ctrl_sock;	/* Connected control socket */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	int   intr_sock;	/* Connected interrupt socket */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	__u16 parser;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	__u16 rd_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	compat_uptr_t rd_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	__u8  country;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	__u8  subclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	__u16 vendor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	__u16 product;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	__u16 version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	__u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	__u32 idle_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	char  name[128];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	void __user *argp = compat_ptr(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (cmd == HIDPGETCONNLIST) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		struct hidp_connlist_req cl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		u32 __user *p = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		u32 uci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		if (get_user(cl.cnum, p) || get_user(uci, p + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		cl.ci = compat_ptr(uci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		if (cl.cnum <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		err = hidp_get_connlist(&cl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		if (!err && put_user(cl.cnum, p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	} else if (cmd == HIDPCONNADD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		struct compat_hidp_connadd_req ca32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		struct hidp_connadd_req ca;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		struct socket *csock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		struct socket *isock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 			return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		if (copy_from_user(&ca32, (void __user *) arg, sizeof(ca32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		ca.ctrl_sock = ca32.ctrl_sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		ca.intr_sock = ca32.intr_sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		ca.parser = ca32.parser;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		ca.rd_size = ca32.rd_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		ca.rd_data = compat_ptr(ca32.rd_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		ca.country = ca32.country;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		ca.subclass = ca32.subclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		ca.vendor = ca32.vendor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		ca.product = ca32.product;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		ca.version = ca32.version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		ca.flags = ca32.flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		ca.idle_to = ca32.idle_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		ca32.name[sizeof(ca32.name) - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		memcpy(ca.name, ca32.name, 128);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		csock = sockfd_lookup(ca.ctrl_sock, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		if (!csock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		isock = sockfd_lookup(ca.intr_sock, &err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		if (!isock) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 			sockfd_put(csock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		err = hidp_connection_add(&ca, csock, isock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		if (!err && copy_to_user(argp, &ca32, sizeof(ca32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		sockfd_put(csock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		sockfd_put(isock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	return hidp_sock_ioctl(sock, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static const struct proto_ops hidp_sock_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	.family		= PF_BLUETOOTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	.release	= hidp_sock_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	.ioctl		= hidp_sock_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	.compat_ioctl	= hidp_sock_compat_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	.bind		= sock_no_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	.getname	= sock_no_getname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	.sendmsg	= sock_no_sendmsg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	.recvmsg	= sock_no_recvmsg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	.listen		= sock_no_listen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	.shutdown	= sock_no_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	.connect	= sock_no_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	.socketpair	= sock_no_socketpair,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	.accept		= sock_no_accept,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	.mmap		= sock_no_mmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static struct proto hidp_proto = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	.name		= "HIDP",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	.obj_size	= sizeof(struct bt_sock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static int hidp_sock_create(struct net *net, struct socket *sock, int protocol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 			    int kern)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	BT_DBG("sock %p", sock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	if (sock->type != SOCK_RAW)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		return -ESOCKTNOSUPPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto, kern);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	if (!sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	sock_init_data(sock, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	sock->ops = &hidp_sock_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	sock->state = SS_UNCONNECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	sock_reset_flag(sk, SOCK_ZAPPED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	sk->sk_protocol = protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	sk->sk_state	= BT_OPEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	bt_sock_link(&hidp_sk_list, sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static const struct net_proto_family hidp_sock_family_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	.family	= PF_BLUETOOTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	.owner	= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	.create	= hidp_sock_create
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) int __init hidp_init_sockets(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	err = proto_register(&hidp_proto, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		BT_ERR("Can't register HIDP socket");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	err = bt_procfs_init(&init_net, "hidp", &hidp_sk_list, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		BT_ERR("Failed to create HIDP proc file");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		bt_sock_unregister(BTPROTO_HIDP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	BT_INFO("HIDP socket layer initialized");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	proto_unregister(&hidp_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) void __exit hidp_cleanup_sockets(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	bt_procfs_cleanup(&init_net, "hidp");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	bt_sock_unregister(BTPROTO_HIDP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	proto_unregister(&hidp_proto);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }