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Diffstat (limited to 'net/bluetooth/rfcomm/core.c')
-rw-r--r--net/bluetooth/rfcomm/core.c96
1 files changed, 73 insertions, 23 deletions
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index facd8a79c038..633cceeb943e 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -216,6 +216,7 @@ static int rfcomm_check_security(struct rfcomm_dlc *d)
switch (d->sec_level) {
case BT_SECURITY_HIGH:
+ case BT_SECURITY_FIPS:
auth_type = HCI_AT_GENERAL_BONDING_MITM;
break;
case BT_SECURITY_MEDIUM:
@@ -359,6 +360,11 @@ static struct rfcomm_dlc *rfcomm_dlc_get(struct rfcomm_session *s, u8 dlci)
return NULL;
}
+static int rfcomm_check_channel(u8 channel)
+{
+ return channel < 1 || channel > 30;
+}
+
static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel)
{
struct rfcomm_session *s;
@@ -368,7 +374,7 @@ static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
BT_DBG("dlc %p state %ld %pMR -> %pMR channel %d",
d, d->state, src, dst, channel);
- if (channel < 1 || channel > 30)
+ if (rfcomm_check_channel(channel))
return -EINVAL;
if (d->state != BT_OPEN && d->state != BT_CLOSED)
@@ -425,6 +431,20 @@ int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 chann
return r;
}
+static void __rfcomm_dlc_disconn(struct rfcomm_dlc *d)
+{
+ struct rfcomm_session *s = d->session;
+
+ d->state = BT_DISCONN;
+ if (skb_queue_empty(&d->tx_queue)) {
+ rfcomm_send_disc(s, d->dlci);
+ rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT);
+ } else {
+ rfcomm_queue_disc(d);
+ rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT * 2);
+ }
+}
+
static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
{
struct rfcomm_session *s = d->session;
@@ -437,32 +457,29 @@ static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
switch (d->state) {
case BT_CONNECT:
case BT_CONFIG:
+ case BT_OPEN:
+ case BT_CONNECT2:
if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
set_bit(RFCOMM_AUTH_REJECT, &d->flags);
rfcomm_schedule();
- break;
+ return 0;
}
- /* Fall through */
+ }
+ switch (d->state) {
+ case BT_CONNECT:
case BT_CONNECTED:
- d->state = BT_DISCONN;
- if (skb_queue_empty(&d->tx_queue)) {
- rfcomm_send_disc(s, d->dlci);
- rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT);
- } else {
- rfcomm_queue_disc(d);
- rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT * 2);
- }
+ __rfcomm_dlc_disconn(d);
break;
- case BT_OPEN:
- case BT_CONNECT2:
- if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
- set_bit(RFCOMM_AUTH_REJECT, &d->flags);
- rfcomm_schedule();
+ case BT_CONFIG:
+ if (s->state != BT_BOUND) {
+ __rfcomm_dlc_disconn(d);
break;
}
- /* Fall through */
+ /* if closing a dlc in a session that hasn't been started,
+ * just close and unlink the dlc
+ */
default:
rfcomm_dlc_clear_timer(d);
@@ -513,6 +530,25 @@ no_session:
return r;
}
+struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel)
+{
+ struct rfcomm_session *s;
+ struct rfcomm_dlc *dlc = NULL;
+ u8 dlci;
+
+ if (rfcomm_check_channel(channel))
+ return ERR_PTR(-EINVAL);
+
+ rfcomm_lock();
+ s = rfcomm_session_get(src, dst);
+ if (s) {
+ dlci = __dlci(!s->initiator, channel);
+ dlc = rfcomm_dlc_get(s, dlci);
+ }
+ rfcomm_unlock();
+ return dlc;
+}
+
int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb)
{
int len = skb->len;
@@ -533,6 +569,20 @@ int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb)
return len;
}
+void rfcomm_dlc_send_noerror(struct rfcomm_dlc *d, struct sk_buff *skb)
+{
+ int len = skb->len;
+
+ BT_DBG("dlc %p mtu %d len %d", d, d->mtu, len);
+
+ rfcomm_make_uih(skb, d->addr);
+ skb_queue_tail(&d->tx_queue, skb);
+
+ if (d->state == BT_CONNECTED &&
+ !test_bit(RFCOMM_TX_THROTTLED, &d->flags))
+ rfcomm_schedule();
+}
+
void __rfcomm_dlc_throttle(struct rfcomm_dlc *d)
{
BT_DBG("dlc %p state %ld", d, d->state);
@@ -718,7 +768,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
bacpy(&addr.l2_bdaddr, dst);
addr.l2_family = AF_BLUETOOTH;
- addr.l2_psm = __constant_cpu_to_le16(RFCOMM_PSM);
+ addr.l2_psm = cpu_to_le16(RFCOMM_PSM);
addr.l2_cid = 0;
addr.l2_bdaddr_type = BDADDR_BREDR;
*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
@@ -1943,12 +1993,11 @@ static void rfcomm_process_sessions(void)
continue;
}
- if (s->state == BT_LISTEN) {
+ switch (s->state) {
+ case BT_LISTEN:
rfcomm_accept_connection(s);
continue;
- }
- switch (s->state) {
case BT_BOUND:
s = rfcomm_check_connection(s);
break;
@@ -1983,7 +2032,7 @@ static int rfcomm_add_listener(bdaddr_t *ba)
/* Bind socket */
bacpy(&addr.l2_bdaddr, ba);
addr.l2_family = AF_BLUETOOTH;
- addr.l2_psm = __constant_cpu_to_le16(RFCOMM_PSM);
+ addr.l2_psm = cpu_to_le16(RFCOMM_PSM);
addr.l2_cid = 0;
addr.l2_bdaddr_type = BDADDR_BREDR;
err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
@@ -2085,7 +2134,8 @@ static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
set_bit(RFCOMM_SEC_PENDING, &d->flags);
rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
continue;
- } else if (d->sec_level == BT_SECURITY_HIGH) {
+ } else if (d->sec_level == BT_SECURITY_HIGH ||
+ d->sec_level == BT_SECURITY_FIPS) {
set_bit(RFCOMM_ENC_DROP, &d->flags);
continue;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 17:24:19 +0000