From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This adds support for ECRED Connection request/response which will be
used by l2cap-runner to test L2CAP_MODE_EXT_FLOWCTL mode.
---
emulator/bthost.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/emulator/bthost.c b/emulator/bthost.c
index 6482bbecc..0fa283464 100644
--- a/emulator/bthost.c
+++ b/emulator/bthost.c
@@ -1773,6 +1773,69 @@ static bool l2cap_le_conn_rsp(struct bthost *bthost, struct btconn *conn,
return true;
}
+static bool l2cap_ecred_conn_req(struct bthost *bthost, struct btconn *conn,
+ uint8_t ident, const void *data, uint16_t len)
+{
+ const struct bt_l2cap_pdu_ecred_conn_req *req = data;
+ struct {
+ struct bt_l2cap_pdu_ecred_conn_rsp pdu;
+ uint16_t dcid[5];
+ } __attribute__ ((packed)) rsp;
+ uint16_t psm;
+ int num_scid, i = 0;
+
+ if (len < sizeof(*req))
+ return false;
+
+ psm = le16_to_cpu(req->psm);
+
+ memset(&rsp, 0, sizeof(rsp));
+
+ rsp.pdu.mtu = 64;
+ rsp.pdu.mps = 64;
+ rsp.pdu.credits = 1;
+
+ if (!bthost_find_l2cap_cb_by_psm(bthost, psm)) {
+ rsp.pdu.result = cpu_to_le16(0x0002); /* PSM Not Supported */
+ goto respond;
+ }
+
+ len -= sizeof(rsp.pdu);
+ num_scid = len / sizeof(*req->scid);
+
+ for (; i < num_scid; i++)
+ rsp.dcid[i] = cpu_to_le16(conn->next_cid++);
+
+respond:
+ l2cap_sig_send(bthost, conn, BT_L2CAP_PDU_ECRED_CONN_RSP, ident, &rsp,
+ sizeof(rsp.pdu) + i * sizeof(*rsp.dcid));
+
+ return true;
+}
+
+static bool l2cap_ecred_conn_rsp(struct bthost *bthost, struct btconn *conn,
+ uint8_t ident, const void *data, uint16_t len)
+{
+ const struct {
+ const struct bt_l2cap_pdu_ecred_conn_rsp *pdu;
+ uint16_t scid[5];
+ } __attribute__ ((packed)) *rsp = data;
+ int num_scid, i;
+
+ if (len < sizeof(*rsp))
+ return false;
+
+ num_scid = len / sizeof(*rsp->scid);
+
+ for (i = 0; i < num_scid; i++)
+ /* TODO add L2CAP connection before with proper PSM */
+ bthost_add_l2cap_conn(bthost, conn, 0,
+ le16_to_cpu(rsp->scid[i]), 0);
+
+
+ return true;
+}
+
static void l2cap_le_sig(struct bthost *bthost, struct btconn *conn,
const void *data, uint16_t len)
{
@@ -1819,6 +1882,15 @@ static void l2cap_le_sig(struct bthost *bthost, struct btconn *conn,
ret = l2cap_le_conn_rsp(bthost, conn, hdr->ident,
data + sizeof(*hdr), hdr_len);
break;
+ case BT_L2CAP_PDU_ECRED_CONN_REQ:
+ ret = l2cap_ecred_conn_req(bthost, conn, hdr->ident,
+ data + sizeof(*hdr), hdr_len);
+ break;
+
+ case BT_L2CAP_PDU_ECRED_CONN_RSP:
+ ret = l2cap_ecred_conn_rsp(bthost, conn, hdr->ident,
+ data + sizeof(*hdr), hdr_len);
+ break;
default:
printf("Unknown L2CAP code 0x%02x\n", hdr->code);
--
2.21.1
