From 5d3de7df18077a0f508ae2c3e3f1866da65fdffd Mon Sep 17 00:00:00 2001 From: Vinicius Costa Gomes Date: Tue, 14 Jun 2011 13:37:41 -0300 Subject: Bluetooth: Add support for SMP timeout This patch adds support for disconnecting the link when SMP procedure takes more than 30 seconds. SMP begins when either the Pairing Request command is sent or the Pairing Response is received, and it ends when the link is encrypted (or terminated). Vol 3, Part H Section 3.4. Signed-off-by: Vinicius Costa Gomes Signed-off-by: Gustavo F. Padovan --- net/bluetooth/smp.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'net/bluetooth/smp.c') diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index dfd6891b9c8..39886786eb7 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -27,6 +27,8 @@ #include #include +#define SMP_TIMEOUT 30000 /* 30 seconds */ + static inline void swap128(u8 src[16], u8 dst[16]) { int i; @@ -228,6 +230,9 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) smp_send_cmd(conn, SMP_CMD_PAIRING_RSP, sizeof(*rp), rp); + mod_timer(&conn->security_timer, jiffies + + msecs_to_jiffies(SMP_TIMEOUT)); + return 0; } @@ -303,6 +308,9 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb) smp_send_cmd(conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp); } + mod_timer(&conn->security_timer, jiffies + + msecs_to_jiffies(SMP_TIMEOUT)); + return 0; } @@ -382,6 +390,9 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp); + mod_timer(&conn->security_timer, jiffies + + msecs_to_jiffies(SMP_TIMEOUT)); + set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->pend); return 0; @@ -415,6 +426,9 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level) conn->preq[0] = SMP_CMD_PAIRING_REQ; memcpy(&conn->preq[1], &cp, sizeof(cp)); + mod_timer(&conn->security_timer, jiffies + + msecs_to_jiffies(SMP_TIMEOUT)); + smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp); } else { struct smp_cmd_security_req cp; -- cgit v1.2.3-18-g5258