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Bluetooth: Add SMP confirmation structs

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This patch adds initial support for verifying the confirmation value
that the remote side has sent.

Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Anderson Briglia 2011-06-09 18:50:45 -03:00 committed by Gustavo F. Padovan
parent d22ef0bc83
commit f01ead3157
2 changed files with 22 additions and 0 deletions
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5
include/net/bluetooth/l2cap.h
View file

@ -395,6 +395,11 @@ struct l2cap_conn {
__u8 disc_reason;
__u8 preq[7]; /* SMP Pairing Request */
__u8 prsp[7]; /* SMP Pairing Response */
__u8 prnd[16]; /* SMP Pairing Random */
__u8 pcnf[16]; /* SMP Pairing Confirm */
struct list_head chan_l;
rwlock_t chan_lock;
};

17
net/bluetooth/smp.c
View file

@ -187,6 +187,8 @@ static void smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
BT_DBG("conn %p", conn);
conn->preq[0] = SMP_CMD_PAIRING_REQ;
memcpy(&conn->preq[1], rp, sizeof(*rp));
skb_pull(skb, sizeof(*rp));
rp->io_capability = 0x00;
@ -196,17 +198,25 @@ static void smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
rp->resp_key_dist = 0x00;
rp->auth_req &= (SMP_AUTH_BONDING | SMP_AUTH_MITM);
conn->prsp[0] = SMP_CMD_PAIRING_RSP;
memcpy(&conn->prsp[1], rp, sizeof(*rp));
smp_send_cmd(conn, SMP_CMD_PAIRING_RSP, sizeof(*rp), rp);
}
static void smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_pairing *rp = (void *) skb->data;
struct smp_cmd_pairing_confirm cp;
BT_DBG("conn %p", conn);
memset(&cp, 0, sizeof(cp));
conn->prsp[0] = SMP_CMD_PAIRING_RSP;
memcpy(&conn->prsp[1], rp, sizeof(*rp));
skb_pull(skb, sizeof(*rp));
smp_send_cmd(conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp);
}
@ -266,6 +276,9 @@ static void smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
cp.resp_key_dist = 0x00;
cp.auth_req = rp->auth_req & (SMP_AUTH_BONDING | SMP_AUTH_MITM);
conn->preq[0] = SMP_CMD_PAIRING_REQ;
memcpy(&conn->preq[1], &cp, sizeof(cp));
smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
}
@ -303,6 +316,10 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
cp.init_key_dist = 0x00;
cp.resp_key_dist = 0x00;
cp.auth_req = authreq;
conn->preq[0] = SMP_CMD_PAIRING_REQ;
memcpy(&conn->preq[1], &cp, sizeof(cp));
smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
} else {
struct smp_cmd_security_req cp;