--- /dev/null
+
+/*!
+ * @file coreconfigurator.c
+ * @brief
+ * @author
+ * @sa coreconfigurator.h
+ * @date 1 Mar 2012
+ * @version 1.0
+ */
+
+#include "coreconfigurator.h"
+#include "wilc_wlan_if.h"
+#include "wilc_wlan.h"
+#include <linux/errno.h>
+#include <linux/slab.h>
+#define TAG_PARAM_OFFSET (MAC_HDR_LEN + TIME_STAMP_LEN + \
+ BEACON_INTERVAL_LEN + CAP_INFO_LEN)
+
+/* Basic Frame Type Codes (2-bit) */
+enum basic_frame_type {
+ FRAME_TYPE_CONTROL = 0x04,
+ FRAME_TYPE_DATA = 0x08,
+ FRAME_TYPE_MANAGEMENT = 0x00,
+ FRAME_TYPE_RESERVED = 0x0C,
+ FRAME_TYPE_FORCE_32BIT = 0xFFFFFFFF
+};
+
+/* Frame Type and Subtype Codes (6-bit) */
+enum sub_frame_type {
+ ASSOC_REQ = 0x00,
+ ASSOC_RSP = 0x10,
+ REASSOC_REQ = 0x20,
+ REASSOC_RSP = 0x30,
+ PROBE_REQ = 0x40,
+ PROBE_RSP = 0x50,
+ BEACON = 0x80,
+ ATIM = 0x90,
+ DISASOC = 0xA0,
+ AUTH = 0xB0,
+ DEAUTH = 0xC0,
+ ACTION = 0xD0,
+ PS_POLL = 0xA4,
+ RTS = 0xB4,
+ CTS = 0xC4,
+ ACK = 0xD4,
+ CFEND = 0xE4,
+ CFEND_ACK = 0xF4,
+ DATA = 0x08,
+ DATA_ACK = 0x18,
+ DATA_POLL = 0x28,
+ DATA_POLL_ACK = 0x38,
+ NULL_FRAME = 0x48,
+ CFACK = 0x58,
+ CFPOLL = 0x68,
+ CFPOLL_ACK = 0x78,
+ QOS_DATA = 0x88,
+ QOS_DATA_ACK = 0x98,
+ QOS_DATA_POLL = 0xA8,
+ QOS_DATA_POLL_ACK = 0xB8,
+ QOS_NULL_FRAME = 0xC8,
+ QOS_CFPOLL = 0xE8,
+ QOS_CFPOLL_ACK = 0xF8,
+ BLOCKACK_REQ = 0x84,
+ BLOCKACK = 0x94,
+ FRAME_SUBTYPE_FORCE_32BIT = 0xFFFFFFFF
+};
+
+/* Element ID of various Information Elements */
+enum info_element_id {
+ ISSID = 0, /* Service Set Identifier */
+ ISUPRATES = 1, /* Supported Rates */
+ IFHPARMS = 2, /* FH parameter set */
+ IDSPARMS = 3, /* DS parameter set */
+ ICFPARMS = 4, /* CF parameter set */
+ ITIM = 5, /* Traffic Information Map */
+ IIBPARMS = 6, /* IBSS parameter set */
+ ICOUNTRY = 7, /* Country element */
+ IEDCAPARAMS = 12, /* EDCA parameter set */
+ ITSPEC = 13, /* Traffic Specification */
+ ITCLAS = 14, /* Traffic Classification */
+ ISCHED = 15, /* Schedule */
+ ICTEXT = 16, /* Challenge Text */
+ IPOWERCONSTRAINT = 32, /* Power Constraint */
+ IPOWERCAPABILITY = 33, /* Power Capability */
+ ITPCREQUEST = 34, /* TPC Request */
+ ITPCREPORT = 35, /* TPC Report */
+ ISUPCHANNEL = 36, /* Supported channel list */
+ ICHSWANNOUNC = 37, /* Channel Switch Announcement */
+ IMEASUREMENTREQUEST = 38, /* Measurement request */
+ IMEASUREMENTREPORT = 39, /* Measurement report */
+ IQUIET = 40, /* Quiet element Info */
+ IIBSSDFS = 41, /* IBSS DFS */
+ IERPINFO = 42, /* ERP Information */
+ ITSDELAY = 43, /* TS Delay */
+ ITCLASPROCESS = 44, /* TCLAS Processing */
+ IHTCAP = 45, /* HT Capabilities */
+ IQOSCAP = 46, /* QoS Capability */
+ IRSNELEMENT = 48, /* RSN Information Element */
+ IEXSUPRATES = 50, /* Extended Supported Rates */
+ IEXCHSWANNOUNC = 60, /* Extended Ch Switch Announcement*/
+ IHTOPERATION = 61, /* HT Information */
+ ISECCHOFF = 62, /* Secondary Channel Offeset */
+ I2040COEX = 72, /* 20/40 Coexistence IE */
+ I2040INTOLCHREPORT = 73, /* 20/40 Intolerant channel report*/
+ IOBSSSCAN = 74, /* OBSS Scan parameters */
+ IEXTCAP = 127, /* Extended capability */
+ IWMM = 221, /* WMM parameters */
+ IWPAELEMENT = 221, /* WPA Information Element */
+ INFOELEM_ID_FORCE_32BIT = 0xFFFFFFFF
+};
+
+/* This function extracts the beacon period field from the beacon or probe */
+/* response frame. */
+static inline u16 get_beacon_period(u8 *data)
+{
+ u16 bcn_per;
+
+ bcn_per = data[0];
+ bcn_per |= (data[1] << 8);
+
+ return bcn_per;
+}
+
+static inline u32 get_beacon_timestamp_lo(u8 *data)
+{
+ u32 time_stamp = 0;
+ u32 index = MAC_HDR_LEN;
+
+ time_stamp |= data[index++];
+ time_stamp |= (data[index++] << 8);
+ time_stamp |= (data[index++] << 16);
+ time_stamp |= (data[index] << 24);
+
+ return time_stamp;
+}
+
+static inline u32 get_beacon_timestamp_hi(u8 *data)
+{
+ u32 time_stamp = 0;
+ u32 index = (MAC_HDR_LEN + 4);
+
+ time_stamp |= data[index++];
+ time_stamp |= (data[index++] << 8);
+ time_stamp |= (data[index++] << 16);
+ time_stamp |= (data[index] << 24);
+
+ return time_stamp;
+}
+
+/* This function extracts the 'frame type and sub type' bits from the MAC */
+/* header of the input frame. */
+/* Returns the value in the LSB of the returned value. */
+static inline enum sub_frame_type get_sub_type(u8 *header)
+{
+ return ((enum sub_frame_type)(header[0] & 0xFC));
+}
+
+/* This function extracts the 'to ds' bit from the MAC header of the input */
+/* frame. */
+/* Returns the value in the LSB of the returned value. */
+static inline u8 get_to_ds(u8 *header)
+{
+ return (header[1] & 0x01);
+}
+
+/* This function extracts the 'from ds' bit from the MAC header of the input */
+/* frame. */
+/* Returns the value in the LSB of the returned value. */
+static inline u8 get_from_ds(u8 *header)
+{
+ return ((header[1] & 0x02) >> 1);
+}
+
+/* This function extracts the MAC Address in 'address1' field of the MAC */
+/* header and updates the MAC Address in the allocated 'addr' variable. */
+static inline void get_address1(u8 *pu8msa, u8 *addr)
+{
+ memcpy(addr, pu8msa + 4, 6);
+}
+
+/* This function extracts the MAC Address in 'address2' field of the MAC */
+/* header and updates the MAC Address in the allocated 'addr' variable. */
+static inline void get_address2(u8 *pu8msa, u8 *addr)
+{
+ memcpy(addr, pu8msa + 10, 6);
+}
+
+/* This function extracts the MAC Address in 'address3' field of the MAC */
+/* header and updates the MAC Address in the allocated 'addr' variable. */
+static inline void get_address3(u8 *pu8msa, u8 *addr)
+{
+ memcpy(addr, pu8msa + 16, 6);
+}
+
+/* This function extracts the BSSID from the incoming WLAN packet based on */
+/* the 'from ds' bit, and updates the MAC Address in the allocated 'addr' */
+/* variable. */
+static inline void get_BSSID(u8 *data, u8 *bssid)
+{
+ if (get_from_ds(data) == 1)
+ get_address2(data, bssid);
+ else if (get_to_ds(data) == 1)
+ get_address1(data, bssid);
+ else
+ get_address3(data, bssid);
+}
+
+/* This function extracts the SSID from a beacon/probe response frame */
+static inline void get_ssid(u8 *data, u8 *ssid, u8 *p_ssid_len)
+{
+ u8 len = 0;
+ u8 i = 0;
+ u8 j = 0;
+
+ len = data[MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN +
+ CAP_INFO_LEN + 1];
+ j = MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN +
+ CAP_INFO_LEN + 2;
+
+ /* If the SSID length field is set wrongly to a value greater than the */
+ /* allowed maximum SSID length limit, reset the length to 0 */
+ if (len >= MAX_SSID_LEN)
+ len = 0;
+
+ for (i = 0; i < len; i++, j++)
+ ssid[i] = data[j];
+
+ ssid[len] = '\0';
+
+ *p_ssid_len = len;
+}
+
+/* This function extracts the capability info field from the beacon or probe */
+/* response frame. */
+static inline u16 get_cap_info(u8 *data)
+{
+ u16 cap_info = 0;
+ u16 index = MAC_HDR_LEN;
+ enum sub_frame_type st;
+
+ st = get_sub_type(data);
+
+ /* Location of the Capability field is different for Beacon and */
+ /* Association frames. */
+ if ((st == BEACON) || (st == PROBE_RSP))
+ index += TIME_STAMP_LEN + BEACON_INTERVAL_LEN;
+
+ cap_info = data[index];
+ cap_info |= (data[index + 1] << 8);
+
+ return cap_info;
+}
+
+/* This function extracts the capability info field from the Association */
+/* response frame. */
+static inline u16 get_assoc_resp_cap_info(u8 *data)
+{
+ u16 cap_info;
+
+ cap_info = data[0];
+ cap_info |= (data[1] << 8);
+
+ return cap_info;
+}
+
+/* This function extracts the association status code from the incoming */
+/* association response frame and returns association status code */
+static inline u16 get_asoc_status(u8 *data)
+{
+ u16 asoc_status;
+
+ asoc_status = data[3];
+ asoc_status = (asoc_status << 8) | data[2];
+
+ return asoc_status;
+}
+
+/* This function extracts association ID from the incoming association */
+/* response frame */
+static inline u16 get_asoc_id(u8 *data)
+{
+ u16 asoc_id;
+
+ asoc_id = data[4];
+ asoc_id |= (data[5] << 8);
+
+ return asoc_id;
+}
+
+u8 *get_tim_elm(u8 *pu8msa, u16 u16RxLen, u16 u16TagParamOffset)
+{
+ u16 u16index;
+
+ /*************************************************************************/
+ /* Beacon Frame - Frame Body */
+ /* --------------------------------------------------------------------- */
+ /* |Timestamp |BeaconInt |CapInfo |SSID |SupRates |DSParSet |TIM elm | */
+ /* --------------------------------------------------------------------- */
+ /* |8 |2 |2 |2-34 |3-10 |3 |4-256 | */
+ /* --------------------------------------------------------------------- */
+ /* */
+ /*************************************************************************/
+
+ u16index = u16TagParamOffset;
+
+ /* Search for the TIM Element Field and return if the element is found */
+ while (u16index < (u16RxLen - FCS_LEN)) {
+ if (pu8msa[u16index] == ITIM)
+ return &pu8msa[u16index];
+ u16index += (IE_HDR_LEN + pu8msa[u16index + 1]);
+ }
+
+ return NULL;
+}
+
+/* This function gets the current channel information from
+ * the 802.11n beacon/probe response frame */
+u8 get_current_channel_802_11n(u8 *pu8msa, u16 u16RxLen)
+{
+ u16 index;
+
+ index = TAG_PARAM_OFFSET;
+ while (index < (u16RxLen - FCS_LEN)) {
+ if (pu8msa[index] == IDSPARMS)
+ return pu8msa[index + 2];
+ /* Increment index by length information and header */
+ index += pu8msa[index + 1] + IE_HDR_LEN;
+ }
+
+ /* Return current channel information from the MIB, if beacon/probe */
+ /* response frame does not contain the DS parameter set IE */
+ /* return (mget_CurrentChannel() + 1); */
+ return 0; /* no MIB here */
+}
+
+/**
+ * @brief parses the received 'N' message
+ * @details
+ * @param[in] pu8MsgBuffer The message to be parsed
+ * @param[out] ppstrNetworkInfo pointer to pointer to the structure containing the parsed Network Info
+ * @return Error code indicating success/failure
+ * @note
+ * @author mabubakr
+ * @date 1 Mar 2012
+ * @version 1.0
+ */
+s32 parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo)
+{
+ tstrNetworkInfo *pstrNetworkInfo = NULL;
+ u8 u8MsgType = 0;
+ u8 u8MsgID = 0;
+ u16 u16MsgLen = 0;
+
+ u16 u16WidID = (u16)WID_NIL;
+ u16 u16WidLen = 0;
+ u8 *pu8WidVal = NULL;
+
+ u8MsgType = pu8MsgBuffer[0];
+
+ /* Check whether the received message type is 'N' */
+ if ('N' != u8MsgType) {
+ PRINT_ER("Received Message format incorrect.\n");
+ return -EFAULT;
+ }
+
+ /* Extract message ID */
+ u8MsgID = pu8MsgBuffer[1];
+
+ /* Extract message Length */
+ u16MsgLen = MAKE_WORD16(pu8MsgBuffer[2], pu8MsgBuffer[3]);
+
+ /* Extract WID ID */
+ u16WidID = MAKE_WORD16(pu8MsgBuffer[4], pu8MsgBuffer[5]);
+
+ /* Extract WID Length */
+ u16WidLen = MAKE_WORD16(pu8MsgBuffer[6], pu8MsgBuffer[7]);
+
+ /* Assign a pointer to the WID value */
+ pu8WidVal = &pu8MsgBuffer[8];
+
+ /* parse the WID value of the WID "WID_NEWORK_INFO" */
+ {
+ u8 *pu8msa = NULL;
+ u16 u16RxLen = 0;
+ u8 *pu8TimElm = NULL;
+ u8 *pu8IEs = NULL;
+ u16 u16IEsLen = 0;
+ u8 u8index = 0;
+ u32 u32Tsf_Lo;
+ u32 u32Tsf_Hi;
+
+ pstrNetworkInfo = kzalloc(sizeof(tstrNetworkInfo), GFP_KERNEL);
+ if (!pstrNetworkInfo)
+ return -ENOMEM;
+
+ pstrNetworkInfo->s8rssi = pu8WidVal[0];
+
+ /* Assign a pointer to msa "Mac Header Start Address" */
+ pu8msa = &pu8WidVal[1];
+
+ u16RxLen = u16WidLen - 1;
+
+ /* parse msa*/
+
+ /* Get the cap_info */
+ pstrNetworkInfo->u16CapInfo = get_cap_info(pu8msa);
+ /* Get time-stamp [Low only 32 bit] */
+ pstrNetworkInfo->u32Tsf = get_beacon_timestamp_lo(pu8msa);
+ PRINT_D(CORECONFIG_DBG, "TSF :%x\n", pstrNetworkInfo->u32Tsf);
+
+ /* Get full time-stamp [Low and High 64 bit] */
+ u32Tsf_Lo = get_beacon_timestamp_lo(pu8msa);
+ u32Tsf_Hi = get_beacon_timestamp_hi(pu8msa);
+
+ pstrNetworkInfo->u64Tsf = u32Tsf_Lo | ((u64)u32Tsf_Hi << 32);
+
+ /* Get SSID */
+ get_ssid(pu8msa, pstrNetworkInfo->au8ssid, &pstrNetworkInfo->u8SsidLen);
+
+ /* Get BSSID */
+ get_BSSID(pu8msa, pstrNetworkInfo->au8bssid);
+
+ /*
+ * Extract current channel information from
+ * the beacon/probe response frame
+ */
+ pstrNetworkInfo->u8channel = get_current_channel_802_11n(pu8msa,
+ u16RxLen + FCS_LEN);
+
+ /* Get beacon period */
+ u8index = MAC_HDR_LEN + TIME_STAMP_LEN;
+
+ pstrNetworkInfo->u16BeaconPeriod = get_beacon_period(pu8msa + u8index);
+
+ u8index += BEACON_INTERVAL_LEN + CAP_INFO_LEN;
+
+ /* Get DTIM Period */
+ pu8TimElm = get_tim_elm(pu8msa, u16RxLen + FCS_LEN, u8index);
+ if (pu8TimElm != NULL)
+ pstrNetworkInfo->u8DtimPeriod = pu8TimElm[3];
+ pu8IEs = &pu8msa[MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN + CAP_INFO_LEN];
+ u16IEsLen = u16RxLen - (MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN + CAP_INFO_LEN);
+
+ if (u16IEsLen > 0) {
+ pstrNetworkInfo->pu8IEs = kmemdup(pu8IEs, u16IEsLen,
+ GFP_KERNEL);
+ if (!pstrNetworkInfo->pu8IEs)
+ return -ENOMEM;
+ }
+ pstrNetworkInfo->u16IEsLen = u16IEsLen;
+
+ }
+
+ *ppstrNetworkInfo = pstrNetworkInfo;
+
+ return 0;
+}
+
+/**
+ * @brief Deallocates the parsed Network Info
+ * @details
+ * @param[in] pstrNetworkInfo Network Info to be deallocated
+ * @return Error code indicating success/failure
+ * @note
+ * @author mabubakr
+ * @date 1 Mar 2012
+ * @version 1.0
+ */
+s32 DeallocateNetworkInfo(tstrNetworkInfo *pstrNetworkInfo)
+{
+ s32 s32Error = 0;
+
+ if (pstrNetworkInfo != NULL) {
+ if (pstrNetworkInfo->pu8IEs != NULL) {
+ kfree(pstrNetworkInfo->pu8IEs);
+ pstrNetworkInfo->pu8IEs = NULL;
+ } else {
+ s32Error = -EFAULT;
+ }
+
+ kfree(pstrNetworkInfo);
+ pstrNetworkInfo = NULL;
+
+ } else {
+ s32Error = -EFAULT;
+ }
+
+ return s32Error;
+}
+
+/**
+ * @brief parses the received Association Response frame
+ * @details
+ * @param[in] pu8Buffer The Association Response frame to be parsed
+ * @param[out] ppstrConnectRespInfo pointer to pointer to the structure containing the parsed Association Response Info
+ * @return Error code indicating success/failure
+ * @note
+ * @author mabubakr
+ * @date 2 Apr 2012
+ * @version 1.0
+ */
+s32 ParseAssocRespInfo(u8 *pu8Buffer, u32 u32BufferLen,
+ tstrConnectRespInfo **ppstrConnectRespInfo)
+{
+ s32 s32Error = 0;
+ tstrConnectRespInfo *pstrConnectRespInfo = NULL;
+ u16 u16AssocRespLen = 0;
+ u8 *pu8IEs = NULL;
+ u16 u16IEsLen = 0;
+
+ pstrConnectRespInfo = kzalloc(sizeof(tstrConnectRespInfo), GFP_KERNEL);
+ if (!pstrConnectRespInfo)
+ return -ENOMEM;
+
+ /* u16AssocRespLen = pu8Buffer[0]; */
+ u16AssocRespLen = (u16)u32BufferLen;
+
+ /* get the status code */
+ pstrConnectRespInfo->u16ConnectStatus = get_asoc_status(pu8Buffer);
+ if (pstrConnectRespInfo->u16ConnectStatus == SUCCESSFUL_STATUSCODE) {
+
+ /* get the capability */
+ pstrConnectRespInfo->u16capability = get_assoc_resp_cap_info(pu8Buffer);
+
+ /* get the Association ID */
+ pstrConnectRespInfo->u16AssocID = get_asoc_id(pu8Buffer);
+
+ /* get the Information Elements */
+ pu8IEs = &pu8Buffer[CAP_INFO_LEN + STATUS_CODE_LEN + AID_LEN];
+ u16IEsLen = u16AssocRespLen - (CAP_INFO_LEN + STATUS_CODE_LEN + AID_LEN);
+
+ pstrConnectRespInfo->pu8RespIEs = kmemdup(pu8IEs, u16IEsLen, GFP_KERNEL);
+ if (!pstrConnectRespInfo->pu8RespIEs)
+ return -ENOMEM;
+
+ pstrConnectRespInfo->u16RespIEsLen = u16IEsLen;
+ }
+
+ *ppstrConnectRespInfo = pstrConnectRespInfo;
+
+ return s32Error;
+}
+
+/**
+ * @brief Deallocates the parsed Association Response Info
+ * @details
+ * @param[in] pstrNetworkInfo Network Info to be deallocated
+ * @return Error code indicating success/failure
+ * @note
+ * @author mabubakr
+ * @date 2 Apr 2012
+ * @version 1.0
+ */
+s32 DeallocateAssocRespInfo(tstrConnectRespInfo *pstrConnectRespInfo)
+{
+ s32 s32Error = 0;
+
+ if (pstrConnectRespInfo != NULL) {
+ if (pstrConnectRespInfo->pu8RespIEs != NULL) {
+ kfree(pstrConnectRespInfo->pu8RespIEs);
+ pstrConnectRespInfo->pu8RespIEs = NULL;
+ } else {
+ s32Error = -EFAULT;
+ }
+
+ kfree(pstrConnectRespInfo);
+ pstrConnectRespInfo = NULL;
+
+ } else {
+ s32Error = -EFAULT;
+ }
+
+ return s32Error;
+}
+
+/**
+ * @brief sends certain Configuration Packet based on the input WIDs pstrWIDs
+ * using driver config layer
+ *
+ * @details
+ * @param[in] pstrWIDs WIDs to be sent in the configuration packet
+ * @param[in] u32WIDsCount number of WIDs to be sent in the configuration packet
+ * @param[out] pu8RxResp The received Packet Response
+ * @param[out] ps32RxRespLen Length of the received Packet Response
+ * @return Error code indicating success/failure
+ * @note
+ * @author mabubakr
+ * @date 1 Mar 2012
+ * @version 1.0
+ */
+s32 send_config_pkt(u8 mode, struct wid *wids, u32 count, u32 drv)
+{
+ s32 counter = 0, ret = 0;
+
+ if (mode == GET_CFG) {
+ for (counter = 0; counter < count; counter++) {
+ PRINT_INFO(CORECONFIG_DBG, "Sending CFG packet [%d][%d]\n", !counter,
+ (counter == count - 1));
+ if (!wilc_wlan_cfg_get(!counter,
+ wids[counter].id,
+ (counter == count - 1),
+ drv)) {
+ ret = -1;
+ printk("[Sendconfigpkt]Get Timed out\n");
+ break;
+ }
+ }
+ counter = 0;
+ for (counter = 0; counter < count; counter++) {
+ wids[counter].size = wilc_wlan_cfg_get_val(
+ wids[counter].id,
+ wids[counter].val,
+ wids[counter].size);
+
+ }
+ } else if (mode == SET_CFG) {
+ for (counter = 0; counter < count; counter++) {
+ PRINT_D(CORECONFIG_DBG, "Sending config SET PACKET WID:%x\n", wids[counter].id);
+ if (!wilc_wlan_cfg_set(!counter,
+ wids[counter].id,
+ wids[counter].val,
+ wids[counter].size,
+ (counter == count - 1),
+ drv)) {
+ ret = -1;
+ printk("[Sendconfigpkt]Set Timed out\n");
+ break;
+ }
+ }
+ }
+
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff