Return-Path: From: Arman Uguray To: linux-bluetooth@vger.kernel.org Cc: Arman Uguray Subject: [PATCH 01/10] shared/att: Implement outgoing "Find Information" request/response. Date: Thu, 26 Jun 2014 16:14:08 -0700 Message-Id: <1403824457-22461-2-git-send-email-armansito@chromium.org> In-Reply-To: <1403824457-22461-1-git-send-email-armansito@chromium.org> References: <1403824457-22461-1-git-send-email-armansito@chromium.org> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: This patch add support for "Find Information" requests sent via bt_att_send and the corresponding response. --- src/shared/att.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/src/shared/att.c b/src/shared/att.c index 57f887e..22dd471 100644 --- a/src/shared/att.c +++ b/src/shared/att.c @@ -165,6 +165,30 @@ static bool encode_mtu_req(struct att_send_op *op, const void *param, return true; } +static bool encode_find_info_req(struct att_send_op *op, const void *param, + uint16_t length, uint16_t mtu) +{ + const struct bt_att_find_info_req_param *p = param; + const uint16_t len = 5; + + if (length != sizeof(*p)) + return false; + + if (len > mtu) + return false; + + op->pdu = malloc(len); + if (!op->pdu) + return false; + + ((uint8_t *) op->pdu)[0] = op->opcode; + put_le16(p->start_handle, ((uint8_t *) op->pdu) + 1); + put_le16(p->end_handle, ((uint8_t *) op->pdu) + 3); + op->len = len; + + return true; +} + static bool encode_pdu(struct att_send_op *op, const void *param, uint16_t length, uint16_t mtu) { @@ -191,6 +215,8 @@ static bool encode_pdu(struct att_send_op *op, const void *param, switch (op->opcode) { case BT_ATT_OP_MTU_REQ: return encode_mtu_req(op, param, length, mtu); + case BT_ATT_OP_FIND_INFO_REQ: + return encode_find_info_req(op, param, length, mtu); default: break; } @@ -471,6 +497,29 @@ static bool handle_mtu_rsp(struct bt_att *att, uint8_t opcode, uint8_t *pdu, ¶m, sizeof(param)); } +static bool handle_find_info_rsp(struct bt_att *att, uint8_t opcode, + uint8_t *pdu, ssize_t pdu_len) +{ + struct bt_att_find_info_rsp_param param; + + /* PDU must have the following data: + * - 1 octet: ATT opcode + * - 1 octet: Format + * - 4 to MTU-2 octetsS; Information data + */ + if (pdu_len < 6) + return false; + + memset(¶m, 0, sizeof(param)); + + param.format = pdu[1]; + param.length = pdu_len - 2; + param.info_data = pdu + 2; + + return request_complete(att, BT_ATT_OP_FIND_INFO_REQ, opcode, + ¶m, sizeof(param)); +} + static void handle_rsp(struct bt_att *att, uint8_t opcode, uint8_t *pdu, ssize_t pdu_len) { @@ -483,6 +532,9 @@ static void handle_rsp(struct bt_att *att, uint8_t opcode, uint8_t *pdu, case BT_ATT_OP_MTU_RSP: success = handle_mtu_rsp(att, opcode, pdu, pdu_len); break; + case BT_ATT_OP_FIND_INFO_RSP: + success = handle_find_info_rsp(att, opcode, pdu, pdu_len); + break; default: success = false; util_debug(att->debug_callback, att->debug_data, -- 2.0.0.526.g5318336