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Bluetooth: SMP: Add helper for DHKey generation

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Change-Id: Id63589760530505bb0ea5ef667909260114fdf0d
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
This commit is contained in:
Szymon Janc 2015-12-03 17:11:52 +01:00 • committed by Anas Nashif
commit c8e5d429c2
1 changed files with 22 additions and 16 deletions
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38
net/bluetooth/smp.c
View file

@ -2162,10 +2162,30 @@ static uint8_t smp_security_request(struct bt_smp *smp, struct net_buf *buf)
}
#endif /* CONFIG_BLUETOOTH_CENTRAL */
static uint8_t generate_dhkey(struct bt_smp *smp)
{
struct bt_hci_cp_le_generate_dhkey *cp;
struct net_buf *buf;
buf = bt_hci_cmd_create(BT_HCI_OP_LE_GENERATE_DHKEY, sizeof(*cp));
if (!buf) {
return BT_SMP_ERR_UNSPECIFIED;
}
cp = net_buf_add(buf, sizeof(*cp));
memcpy(cp->key, smp->pkey, sizeof(cp->key));
if (bt_hci_cmd_send_sync(BT_HCI_OP_LE_GENERATE_DHKEY, buf, NULL)) {
return BT_SMP_ERR_UNSPECIFIED;
}
atomic_set_bit(&smp->flags, SMP_FLAG_DHKEY_PENDING);
return 0;
}
static uint8_t smp_public_key(struct bt_smp *smp, struct net_buf *buf)
{
struct bt_smp_public_key *req = (void *)buf->data;
struct bt_hci_cp_le_generate_dhkey *cp;
uint8_t err;
BT_DBG("");
@ -2242,21 +2262,7 @@ static uint8_t smp_public_key(struct bt_smp *smp, struct net_buf *buf)
return BT_SMP_ERR_UNSPECIFIED;
}
buf = bt_hci_cmd_create(BT_HCI_OP_LE_GENERATE_DHKEY, sizeof(*cp));
if (!buf) {
return BT_SMP_ERR_UNSPECIFIED;
}
cp = net_buf_add(buf, sizeof(*cp));
memcpy(cp->key, smp->pkey, sizeof(cp->key));
if (bt_hci_cmd_send_sync(BT_HCI_OP_LE_GENERATE_DHKEY, buf, NULL)) {
return BT_SMP_ERR_UNSPECIFIED;
}
atomic_set_bit(&smp->flags, SMP_FLAG_DHKEY_PENDING);
return 0;
return generate_dhkey(smp);
}
static uint8_t smp_dhkey_check(struct bt_smp *smp, struct net_buf *buf)