| /* |
| * Copyright (c) 2011-2015,2016 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| /* |
| * |
| * This file lim_ser_des_utils.cc contains the serializer/deserializer |
| * utility functions LIM uses while communicating with upper layer |
| * software entities |
| * Author: Chandra Modumudi |
| * Date: 10/20/02 |
| * History:- |
| * Date Modified by Modification Information |
| * -------------------------------------------------------------------- |
| */ |
| |
| #include "ani_system_defs.h" |
| #include "utils_api.h" |
| #include "lim_types.h" |
| #include "lim_utils.h" |
| #include "lim_ser_des_utils.h" |
| |
| |
| /**--------------------------------------------------------------- |
| \fn lim_get_session_info |
| \brief This function returns the sessionId and transactionId |
| \ of a message. This assumes that the message structure |
| \ is of format: |
| \ uint16_t messageType |
| \ uint16_t messageLength |
| \ uint8_t sessionId |
| \ uint16_t transactionId |
| \param pMac - pMac global structure |
| \param *pBuf - pointer to the message buffer |
| \param sessionId - returned session id value |
| \param transactionId - returned transaction ID value |
| \return None |
| ------------------------------------------------------------------*/ |
| void |
| lim_get_session_info(tpAniSirGlobal pMac, uint8_t *pBuf, uint8_t *sessionId, |
| uint16_t *transactionId) |
| { |
| if (!pBuf) { |
| lim_log(pMac, LOGE, FL("NULL ptr received. ")); |
| return; |
| } |
| |
| pBuf += sizeof(uint16_t); /* skip message type */ |
| pBuf += sizeof(uint16_t); /* skip message length */ |
| |
| *sessionId = *pBuf; /* get sessionId */ |
| pBuf++; |
| *transactionId = lim_get_u16(pBuf); /* get transactionId */ |
| |
| return; |
| } |
| |
| /** |
| * lim_send_disassoc_frm_req_ser_des - called on receiving SME_DISASSOC_REQ |
| * @mac_ctx: pointer to mac context |
| * @disassoc_frm_req: pointer to structure sme_send_disassoc_frm_req |
| * |
| * function send's disassoc frame request on receiving SME_DISASSOC_REQ |
| * |
| * return: eSIR_SUCCESS:Success Error value: Failure |
| */ |
| tSirRetStatus lim_send_disassoc_frm_req_ser_des(tpAniSirGlobal mac_ctx, |
| struct sme_send_disassoc_frm_req *disassoc_frm_req, |
| uint8_t *buf) |
| { |
| A_INT16 len = 0; |
| |
| if (!disassoc_frm_req || !buf) |
| return eSIR_FAILURE; |
| |
| disassoc_frm_req->msg_type = lim_get_u16(buf); |
| buf += sizeof(A_UINT16); |
| |
| len = disassoc_frm_req->length = lim_get_u16(buf); |
| buf += sizeof(A_UINT16); |
| |
| PELOG1(lim_log(mac_ctx, LOG1, |
| FL("SME_DISASSOC_REQ length %d bytes is:"), len);) |
| PELOG1(sirDumpBuf(mac_ctx, SIR_LIM_MODULE_ID, LOG1, buf, len);) |
| |
| if (len < (A_INT16) sizeof(A_UINT32)) |
| return eSIR_FAILURE; |
| |
| /* skip message header */ |
| len -= sizeof(A_UINT32); |
| if (len < 0) |
| return eSIR_FAILURE; |
| |
| /* Extract sessionID */ |
| disassoc_frm_req->session_id = *buf; |
| buf += sizeof(A_UINT8); |
| len -= sizeof(A_UINT8); |
| if (len < 0) |
| return eSIR_FAILURE; |
| |
| /* Extract transactionid */ |
| disassoc_frm_req->trans_id = lim_get_u16(buf); |
| buf += sizeof(A_UINT16); |
| len -= sizeof(A_UINT16); |
| |
| if (len < 0) |
| return eSIR_FAILURE; |
| |
| /* Extract peerMacAddr */ |
| qdf_mem_copy(disassoc_frm_req->peer_mac, buf, sizeof(tSirMacAddr)); |
| buf += sizeof(tSirMacAddr); |
| len -= sizeof(tSirMacAddr); |
| |
| if (len < 0) |
| return eSIR_FAILURE; |
| |
| /* Extract reasonCode */ |
| disassoc_frm_req->reason = lim_get_u16(buf); |
| buf += sizeof(A_UINT16); |
| len -= sizeof(A_UINT16); |
| |
| if (len < 0) |
| return eSIR_FAILURE; |
| |
| disassoc_frm_req->wait_for_ack = *buf; |
| buf += sizeof(A_UINT8); |
| len -= sizeof(A_UINT8); |
| |
| return eSIR_SUCCESS; |
| } |