Bluetooth: Add read_version management command
This patch implements the initial read_version command that userspace
will use before any other management interface operations.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7ea5489..3e24c0b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -29,6 +29,39 @@
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/mgmt.h>
+#define MGMT_VERSION 0
+#define MGMT_REVISION 1
+
+static int read_version(struct sock *sk)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_complete *ev;
+ struct mgmt_rp_read_version *rp;
+
+ BT_DBG("sock %p", sk);
+
+ skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ put_unaligned_le16(MGMT_OP_READ_VERSION, &ev->opcode);
+
+ rp = (void *) skb_put(skb, sizeof(*rp));
+ rp->version = MGMT_VERSION;
+ put_unaligned_le16(MGMT_REVISION, &rp->revision);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+
+ return 0;
+}
+
static int cmd_status(struct sock *sk, u16 cmd, u8 status)
{
struct sk_buff *skb;
@@ -87,6 +120,9 @@
}
switch (opcode) {
+ case MGMT_OP_READ_VERSION:
+ err = read_version(sk);
+ break;
default:
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, opcode, 0x01);