diff options
Diffstat (limited to 'net/bluetooth/cmtp/sock.c')
| -rw-r--r-- | net/bluetooth/cmtp/sock.c | 102 |
1 files changed, 73 insertions, 29 deletions
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c index beb045bf571..d82787d417b 100644 --- a/net/bluetooth/cmtp/sock.c +++ b/net/bluetooth/cmtp/sock.c @@ -1,4 +1,4 @@ -/* +/* CMTP implementation for Linux Bluetooth stack (BlueZ). Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org> @@ -10,43 +10,41 @@ 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 + 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 + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ -#include <linux/config.h> -#include <linux/module.h> +#include <linux/export.h> #include <linux/types.h> +#include <linux/capability.h> #include <linux/errno.h> #include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/slab.h> #include <linux/poll.h> #include <linux/fcntl.h> #include <linux/skbuff.h> #include <linux/socket.h> #include <linux/ioctl.h> #include <linux/file.h> +#include <linux/compat.h> +#include <linux/gfp.h> +#include <linux/uaccess.h> #include <net/sock.h> #include <linux/isdn/capilli.h> -#include <asm/system.h> -#include <asm/uaccess.h> #include "cmtp.h" -#ifndef CONFIG_BT_CMTP_DEBUG -#undef BT_DBG -#define BT_DBG(D...) -#endif +static struct bt_sock_list cmtp_sk_list = { + .lock = __RW_LOCK_UNLOCKED(cmtp_sk_list.lock) +}; static int cmtp_sock_release(struct socket *sock) { @@ -57,6 +55,8 @@ static int cmtp_sock_release(struct socket *sock) if (!sk) return 0; + bt_sock_unlink(&cmtp_sk_list, sk); + sock_orphan(sk); sock_put(sk); @@ -78,7 +78,7 @@ static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long switch (cmd) { case CMTPCONNADD: if (!capable(CAP_NET_ADMIN)) - return -EACCES; + return -EPERM; if (copy_from_user(&ca, argp, sizeof(ca))) return -EFAULT; @@ -88,7 +88,7 @@ static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long return err; if (nsock->sk->sk_state != BT_CONNECTED) { - fput(nsock->file); + sockfd_put(nsock); return -EBADFD; } @@ -97,13 +97,13 @@ static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long if (copy_to_user(argp, &ca, sizeof(ca))) err = -EFAULT; } else - fput(nsock->file); + sockfd_put(nsock); return err; case CMTPCONNDEL: if (!capable(CAP_NET_ADMIN)) - return -EACCES; + return -EPERM; if (copy_from_user(&cd, argp, sizeof(cd))) return -EFAULT; @@ -137,11 +137,43 @@ static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long return -EINVAL; } -static struct proto_ops cmtp_sock_ops = { +#ifdef CONFIG_COMPAT +static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) +{ + if (cmd == CMTPGETCONNLIST) { + struct cmtp_connlist_req cl; + u32 uci; + int err; + + if (get_user(cl.cnum, (u32 __user *) arg) || + get_user(uci, (u32 __user *) (arg + 4))) + return -EFAULT; + + cl.ci = compat_ptr(uci); + + if (cl.cnum <= 0) + return -EINVAL; + + err = cmtp_get_connlist(&cl); + + if (!err && put_user(cl.cnum, (u32 __user *) arg)) + err = -EFAULT; + + return err; + } + + return cmtp_sock_ioctl(sock, cmd, arg); +} +#endif + +static const struct proto_ops cmtp_sock_ops = { .family = PF_BLUETOOTH, .owner = THIS_MODULE, .release = cmtp_sock_release, .ioctl = cmtp_sock_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = cmtp_sock_compat_ioctl, +#endif .bind = sock_no_bind, .getname = sock_no_getname, .sendmsg = sock_no_sendmsg, @@ -163,7 +195,8 @@ static struct proto cmtp_proto = { .obj_size = sizeof(struct bt_sock) }; -static int cmtp_sock_create(struct socket *sock, int protocol) +static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; @@ -172,7 +205,7 @@ static int cmtp_sock_create(struct socket *sock, int protocol) if (sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; - sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &cmtp_proto, 1); + sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto); if (!sk) return -ENOMEM; @@ -187,10 +220,12 @@ static int cmtp_sock_create(struct socket *sock, int protocol) sk->sk_protocol = protocol; sk->sk_state = BT_OPEN; + bt_sock_link(&cmtp_sk_list, sk); + return 0; } -static struct net_proto_family cmtp_sock_family_ops = { +static const struct net_proto_family cmtp_sock_family_ops = { .family = PF_BLUETOOTH, .owner = THIS_MODULE, .create = cmtp_sock_create @@ -205,21 +240,30 @@ int cmtp_init_sockets(void) return err; err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops); - if (err < 0) + if (err < 0) { + BT_ERR("Can't register CMTP socket"); goto error; + } + + err = bt_procfs_init(&init_net, "cmtp", &cmtp_sk_list, NULL); + if (err < 0) { + BT_ERR("Failed to create CMTP proc file"); + bt_sock_unregister(BTPROTO_HIDP); + goto error; + } + + BT_INFO("CMTP socket layer initialized"); return 0; error: - BT_ERR("Can't register CMTP socket"); proto_unregister(&cmtp_proto); return err; } void cmtp_cleanup_sockets(void) { - if (bt_sock_unregister(BTPROTO_CMTP) < 0) - BT_ERR("Can't unregister CMTP socket"); - + bt_procfs_cleanup(&init_net, "cmtp"); + bt_sock_unregister(BTPROTO_CMTP); proto_unregister(&cmtp_proto); } |