gss_krb5: add support for triple-des encryption

[safe/jmp/linux-2.6] / net / bluetooth / hci_conn.c

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 6f22533..b10e3cd 100644 (file)
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -45,11 +45,6 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
-#ifndef CONFIG_BT_HCI_CORE_DEBUG
-#undef  BT_DBG
-#define BT_DBG(D...)
-#endif
-
 void hci_acl_connect(struct hci_conn *conn)
 {
        struct hci_dev *hdev = conn->hdev;
@@ -128,6 +123,8 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
        conn->state = BT_CONNECT;
        conn->out = 1;
 
+       conn->attempt++;
+
        cp.handle   = cpu_to_le16(handle);
        cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
@@ -144,6 +141,8 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
        conn->state = BT_CONNECT;
        conn->out = 1;
 
+       conn->attempt++;
+
        cp.handle   = cpu_to_le16(handle);
        cp.pkt_type = cpu_to_le16(conn->pkt_type);
 
@@ -160,6 +159,7 @@ static void hci_conn_timeout(unsigned long arg)
 {
        struct hci_conn *conn = (void *) arg;
        struct hci_dev *hdev = conn->hdev;
+       __u8 reason;
 
        BT_DBG("conn %p state %d", conn, conn->state);
 
@@ -171,14 +171,13 @@ static void hci_conn_timeout(unsigned long arg)
        switch (conn->state) {
        case BT_CONNECT:
        case BT_CONNECT2:
-               if (conn->type == ACL_LINK)
+               if (conn->type == ACL_LINK && conn->out)
                        hci_acl_connect_cancel(conn);
-               else
-                       hci_acl_disconn(conn, 0x13);
                break;
        case BT_CONFIG:
        case BT_CONNECTED:
-               hci_acl_disconn(conn, 0x13);
+               reason = hci_proto_disconn_ind(conn);
+               hci_acl_disconn(conn, reason);
                break;
        default:
                conn->state = BT_CLOSED;
@@ -212,8 +211,10 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
        conn->type  = type;
        conn->mode  = HCI_CM_ACTIVE;
        conn->state = BT_OPEN;
+       conn->auth_type = HCI_AT_GENERAL_BONDING;
 
        conn->power_save = 1;
+       conn->disc_timeout = HCI_DISCONN_TIMEOUT;
 
        switch (type) {
        case ACL_LINK:
@@ -221,12 +222,13 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
                break;
        case SCO_LINK:
                if (lmp_esco_capable(hdev))
-                       conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
+                       conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
+                                       (hdev->esco_type & EDR_ESCO_MASK);
                else
                        conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
                break;
        case ESCO_LINK:
-               conn->pkt_type = hdev->esco_type;
+               conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
                break;
        }
 
@@ -245,7 +247,9 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
        if (hdev->notify)
                hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
 
-       hci_conn_add_sysfs(conn);
+       atomic_set(&conn->devref, 0);
+
+       hci_conn_init_sysfs(conn);
 
        tasklet_enable(&hdev->tx_task);
 
@@ -278,12 +282,18 @@ int hci_conn_del(struct hci_conn *conn)
        }
 
        tasklet_disable(&hdev->tx_task);
+
        hci_conn_hash_del(hdev, conn);
        if (hdev->notify)
                hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
+
        tasklet_enable(&hdev->tx_task);
+
        skb_queue_purge(&conn->data_q);
-       hci_conn_del_sysfs(conn);
+
+       hci_conn_put_device(conn);
+
+       hci_dev_put(hdev);
 
        return 0;
 }
@@ -330,7 +340,7 @@ EXPORT_SYMBOL(hci_get_route);
 
 /* Create SCO or ACL connection.
  * Device _must_ be locked */
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type)
 {
        struct hci_conn *acl;
        struct hci_conn *sco;
@@ -344,8 +354,11 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 
        hci_conn_hold(acl);
 
-       if (acl->state == BT_OPEN || acl->state == BT_CLOSED)
+       if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
+               acl->sec_level = sec_level;
+               acl->auth_type = auth_type;
                hci_acl_connect(acl);
+       }
 
        if (type == ACL_LINK)
                return acl;
@@ -364,6 +377,9 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 
        if (acl->state == BT_CONNECTED &&
                        (sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
+               acl->power_save = 1;
+               hci_conn_enter_active_mode(acl);
+
                if (lmp_esco_capable(hdev))
                        hci_setup_sync(sco, acl->handle);
                else
@@ -374,43 +390,70 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 }
 EXPORT_SYMBOL(hci_connect);
 
+/* Check link security requirement */
+int hci_conn_check_link_mode(struct hci_conn *conn)
+{
+       BT_DBG("conn %p", conn);
+
+       if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0 &&
+                                       !(conn->link_mode & HCI_LM_ENCRYPT))
+               return 0;
+
+       return 1;
+}
+EXPORT_SYMBOL(hci_conn_check_link_mode);
+
 /* Authenticate remote device */
-int hci_conn_auth(struct hci_conn *conn)
+static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 {
        BT_DBG("conn %p", conn);
 
-       if (conn->link_mode & HCI_LM_AUTH)
+       if (sec_level > conn->sec_level)
+               conn->sec_level = sec_level;
+       else if (conn->link_mode & HCI_LM_AUTH)
                return 1;
 
+       conn->auth_type = auth_type;
+
        if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
                struct hci_cp_auth_requested cp;
                cp.handle = cpu_to_le16(conn->handle);
-               hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+               hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
+                                                       sizeof(cp), &cp);
        }
+
        return 0;
 }
-EXPORT_SYMBOL(hci_conn_auth);
 
-/* Enable encryption */
-int hci_conn_encrypt(struct hci_conn *conn)
+/* Enable security */
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 {
        BT_DBG("conn %p", conn);
 
-       if (conn->link_mode & HCI_LM_ENCRYPT)
+       if (sec_level == BT_SECURITY_SDP)
+               return 1;
+
+       if (sec_level == BT_SECURITY_LOW &&
+                               (!conn->ssp_mode || !conn->hdev->ssp_mode))
                return 1;
 
+       if (conn->link_mode & HCI_LM_ENCRYPT)
+               return hci_conn_auth(conn, sec_level, auth_type);
+
        if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
                return 0;
 
-       if (hci_conn_auth(conn)) {
+       if (hci_conn_auth(conn, sec_level, auth_type)) {
                struct hci_cp_set_conn_encrypt cp;
                cp.handle  = cpu_to_le16(conn->handle);
                cp.encrypt = 1;
-               hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), &cp);
+               hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT,
+                                                       sizeof(cp), &cp);
        }
+
        return 0;
 }
-EXPORT_SYMBOL(hci_conn_encrypt);
+EXPORT_SYMBOL(hci_conn_security);
 
 /* Change link key */
 int hci_conn_change_link_key(struct hci_conn *conn)
@@ -420,14 +463,16 @@ int hci_conn_change_link_key(struct hci_conn *conn)
        if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
                struct hci_cp_change_conn_link_key cp;
                cp.handle = cpu_to_le16(conn->handle);
-               hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY, sizeof(cp), &cp);
+               hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
+                                                       sizeof(cp), &cp);
        }
+
        return 0;
 }
 EXPORT_SYMBOL(hci_conn_change_link_key);
 
 /* Switch role */
-int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
+int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
 {
        BT_DBG("conn %p", conn);
 
@@ -440,6 +485,7 @@ int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
                cp.role = role;
                hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
        }
+
        return 0;
 }
 EXPORT_SYMBOL(hci_conn_switch_role);
@@ -522,7 +568,7 @@ void hci_conn_hash_flush(struct hci_dev *hdev)
 
                c->state = BT_CLOSED;
 
-               hci_proto_disconn_ind(c, 0x16);
+               hci_proto_disconn_cfm(c, 0x16);
                hci_conn_del(c);
        }
 }
@@ -543,6 +589,19 @@ void hci_conn_check_pending(struct hci_dev *hdev)
        hci_dev_unlock(hdev);
 }
 
+void hci_conn_hold_device(struct hci_conn *conn)
+{
+       atomic_inc(&conn->devref);
+}
+EXPORT_SYMBOL(hci_conn_hold_device);
+
+void hci_conn_put_device(struct hci_conn *conn)
+{
+       if (atomic_dec_and_test(&conn->devref))
+               hci_conn_del_sysfs(conn);
+}
+EXPORT_SYMBOL(hci_conn_put_device);
+
 int hci_get_conn_list(void __user *arg)
 {
        struct hci_conn_list_req req, *cl;
@@ -624,3 +683,23 @@ int hci_get_conn_info(struct hci_dev *hdev, void __user *arg)
 
        return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0;
 }
+
+int hci_get_auth_info(struct hci_dev *hdev, void __user *arg)
+{
+       struct hci_auth_info_req req;
+       struct hci_conn *conn;
+
+       if (copy_from_user(&req, arg, sizeof(req)))
+               return -EFAULT;
+
+       hci_dev_lock_bh(hdev);
+       conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr);
+       if (conn)
+               req.type = conn->auth_type;
+       hci_dev_unlock_bh(hdev);
+
+       if (!conn)
+               return -ENOENT;
+
+       return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0;
+}