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authorMarcel Holtmann <marcel@holtmann.org>2009-01-15 21:58:40 +0100
committerMarcel Holtmann <marcel@holtmann.org>2009-02-27 06:14:26 +0100
commit9f2c8a03fbb3048cf38b158f87aa0c3c09bca084 (patch)
treeb8e81e5a8e3f0b8b8a15c06f1cf36e8aa02644e2 /net/bluetooth/rfcomm/sock.c
parent2af6b9d518ddfbc4d6990d5f9c9b1a05341c1cef (diff)
Bluetooth: Replace RFCOMM link mode with security level
Change the RFCOMM internals to use the new security levels and remove the link mode details. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/rfcomm/sock.c')
-rw-r--r--net/bluetooth/rfcomm/sock.c75
1 files changed, 68 insertions, 7 deletions
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index d37a829a81e..9986ef35c89 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -261,14 +261,19 @@ static void rfcomm_sock_init(struct sock *sk, struct sock *parent)
if (parent) {
sk->sk_type = parent->sk_type;
- pi->link_mode = rfcomm_pi(parent)->link_mode;
pi->dlc->defer_setup = bt_sk(parent)->defer_setup;
+
+ pi->sec_level = rfcomm_pi(parent)->sec_level;
+ pi->role_switch = rfcomm_pi(parent)->role_switch;
} else {
- pi->link_mode = 0;
pi->dlc->defer_setup = 0;
+
+ pi->sec_level = BT_SECURITY_LOW;
+ pi->role_switch = 0;
}
- pi->dlc->link_mode = pi->link_mode;
+ pi->dlc->sec_level = pi->sec_level;
+ pi->dlc->role_switch = pi->role_switch;
}
static struct proto rfcomm_proto = {
@@ -408,7 +413,8 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a
bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
rfcomm_pi(sk)->channel = sa->rc_channel;
- d->link_mode = rfcomm_pi(sk)->link_mode;
+ d->sec_level = rfcomm_pi(sk)->sec_level;
+ d->role_switch = rfcomm_pi(sk)->role_switch;
err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
if (!err)
@@ -741,7 +747,14 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u
break;
}
- rfcomm_pi(sk)->link_mode = opt;
+ if (opt & RFCOMM_LM_AUTH)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_LOW;
+ if (opt & RFCOMM_LM_ENCRYPT)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+ if (opt & RFCOMM_LM_SECURE)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_HIGH;
+
+ rfcomm_pi(sk)->role_switch = (opt & RFCOMM_LM_MASTER);
break;
default:
@@ -756,7 +769,8 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u
static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
{
struct sock *sk = sock->sk;
- int err = 0;
+ struct bt_security sec;
+ int len, err = 0;
u32 opt;
BT_DBG("sk %p", sk);
@@ -767,6 +781,23 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
lock_sock(sk);
switch (optname) {
+ case BT_SECURITY:
+ sec.level = BT_SECURITY_LOW;
+
+ len = min_t(unsigned int, sizeof(sec), optlen);
+ if (copy_from_user((char *) &sec, optval, len)) {
+ err = -EFAULT;
+ break;
+ }
+
+ if (sec.level > BT_SECURITY_HIGH) {
+ err = -EINVAL;
+ break;
+ }
+
+ rfcomm_pi(sk)->sec_level = sec.level;
+ break;
+
case BT_DEFER_SETUP:
if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
err = -EINVAL;
@@ -796,6 +827,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
struct sock *l2cap_sk;
struct rfcomm_conninfo cinfo;
int len, err = 0;
+ u32 opt;
BT_DBG("sk %p", sk);
@@ -806,7 +838,26 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
switch (optname) {
case RFCOMM_LM:
- if (put_user(rfcomm_pi(sk)->link_mode, (u32 __user *) optval))
+ switch (rfcomm_pi(sk)->sec_level) {
+ case BT_SECURITY_LOW:
+ opt = RFCOMM_LM_AUTH;
+ break;
+ case BT_SECURITY_MEDIUM:
+ opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT;
+ break;
+ case BT_SECURITY_HIGH:
+ opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT |
+ RFCOMM_LM_SECURE;
+ break;
+ default:
+ opt = 0;
+ break;
+ }
+
+ if (rfcomm_pi(sk)->role_switch)
+ opt |= RFCOMM_LM_MASTER;
+
+ if (put_user(opt, (u32 __user *) optval))
err = -EFAULT;
break;
@@ -840,6 +891,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
+ struct bt_security sec;
int len, err = 0;
BT_DBG("sk %p", sk);
@@ -853,6 +905,15 @@ static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, c
lock_sock(sk);
switch (optname) {
+ case BT_SECURITY:
+ sec.level = rfcomm_pi(sk)->sec_level;
+
+ len = min_t(unsigned int, len, sizeof(sec));
+ if (copy_to_user(optval, (char *) &sec, len))
+ err = -EFAULT;
+
+ break;
+
case BT_DEFER_SETUP:
if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
err = -EINVAL;