libril/ril.cpp

/* //device/libs/telephony/ril.cpp
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/

#define LOG_TAG "RILC"

#include <hardware_legacy/power.h>

#include <telephony/ril.h>
#include <telephony/ril_cdma_sms.h>
#include <cutils/sockets.h>
#include <cutils/jstring.h>
#include <telephony/record_stream.h>
#include <utils/Log.h>
#include <utils/SystemClock.h>
#include <pthread.h>
#include <binder/Parcel.h>
#include <cutils/jstring.h>

#include <sys/types.h>
#include <sys/limits.h>
#include <pwd.h>

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#include <alloca.h>
#include <sys/un.h>
#include <assert.h>
#include <netinet/in.h>
#include <cutils/properties.h>

#include <ril_event.h>

namespace android {

#define PHONE_PROCESS "radio"

#define SOCKET_NAME_RIL "rild"
#define SOCKET2_NAME_RIL "rild2"
#define SOCKET3_NAME_RIL "rild3"
#define SOCKET4_NAME_RIL "rild4"

#define SOCKET_NAME_RIL_DEBUG "rild-debug"

#define ANDROID_WAKE_LOCK_NAME "radio-interface"


#define PROPERTY_RIL_IMPL "gsm.version.ril-impl"

// match with constant in RIL.java
#define MAX_COMMAND_BYTES (8 * 1024)

// Basically: memset buffers that the client library
// shouldn't be using anymore in an attempt to find
// memory usage issues sooner.
#define MEMSET_FREED 1

#define NUM_ELEMS(a)     (sizeof (a) / sizeof (a)[0])

#define MIN(a,b) ((a)<(b) ? (a) : (b))

/* Constants for response types */
#define RESPONSE_SOLICITED 0
#define RESPONSE_UNSOLICITED 1

/* Negative values for private RIL errno's */
#define RIL_ERRNO_INVALID_RESPONSE -1

// request, response, and unsolicited msg print macro
#define PRINTBUF_SIZE 8096

// Enable RILC log
#define RILC_LOG 0

#if RILC_LOG
    #define startRequest           sprintf(printBuf, "(")
    #define closeRequest           sprintf(printBuf, "%s)", printBuf)
    #define printRequest(token, req)           \
            RLOGD("[%04d]> %s %s", token, requestToString(req), printBuf)

    #define startResponse           sprintf(printBuf, "%s {", printBuf)
    #define closeResponse           sprintf(printBuf, "%s}", printBuf)
    #define printResponse           RLOGD("%s", printBuf)

    #define clearPrintBuf           printBuf[0] = 0
    #define removeLastChar          printBuf[strlen(printBuf)-1] = 0
    #define appendPrintBuf(x...)    sprintf(printBuf, x)
#else
    #define startRequest
    #define closeRequest
    #define printRequest(token, req)
    #define startResponse
    #define closeResponse
    #define printResponse
    #define clearPrintBuf
    #define removeLastChar
    #define appendPrintBuf(x...)
#endif

enum WakeType {DONT_WAKE, WAKE_PARTIAL};

typedef struct {
    int requestNumber;
    void (*dispatchFunction) (Parcel &p, struct RequestInfo *pRI);
    int(*responseFunction) (Parcel &p, void *response, size_t responselen);
} CommandInfo;

typedef struct {
    int requestNumber;
    int (*responseFunction) (Parcel &p, void *response, size_t responselen);
    WakeType wakeType;
} UnsolResponseInfo;

typedef struct RequestInfo {
    int32_t token;      //this is not RIL_Token
    CommandInfo *pCI;
    struct RequestInfo *p_next;
    char cancelled;
    char local;         // responses to local commands do not go back to command process
    RIL_SOCKET_ID socket_id;
} RequestInfo;

typedef struct UserCallbackInfo {
    RIL_TimedCallback p_callback;
    void *userParam;
    struct ril_event event;
    struct UserCallbackInfo *p_next;
} UserCallbackInfo;

typedef struct SocketListenParam {
    RIL_SOCKET_ID socket_id;
    int fdListen;
    int fdCommand;
    char* processName;
    struct ril_event* commands_event;
    struct ril_event* listen_event;
    void (*processCommandsCallback)(int fd, short flags, void *param);
    RecordStream *p_rs;
} SocketListenParam;

extern "C" const char * requestToString(int request);
extern "C" const char * failCauseToString(RIL_Errno);
extern "C" const char * callStateToString(RIL_CallState);
extern "C" const char * radioStateToString(RIL_RadioState);
extern "C" const char * rilSocketIdToString(RIL_SOCKET_ID socket_id);

extern "C"
char rild[MAX_SOCKET_NAME_LENGTH] = SOCKET_NAME_RIL;
/*******************************************************************/

RIL_RadioFunctions s_callbacks = {0, NULL, NULL, NULL, NULL, NULL};
static int s_registerCalled = 0;

static pthread_t s_tid_dispatch;
static pthread_t s_tid_reader;
static int s_started = 0;

static int s_fdDebug = -1;
static int s_fdDebug_socket2 = -1;

static int s_fdWakeupRead;
static int s_fdWakeupWrite;

static struct ril_event s_commands_event;
static struct ril_event s_wakeupfd_event;
static struct ril_event s_listen_event;
static SocketListenParam s_ril_param_socket;

static pthread_mutex_t s_pendingRequestsMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t s_writeMutex = PTHREAD_MUTEX_INITIALIZER;
static RequestInfo *s_pendingRequests = NULL;

#if (SIM_COUNT >= 2)
static struct ril_event s_commands_event_socket2;
static struct ril_event s_listen_event_socket2;
static SocketListenParam s_ril_param_socket2;

static pthread_mutex_t s_pendingRequestsMutex_socket2  = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t s_writeMutex_socket2            = PTHREAD_MUTEX_INITIALIZER;
static RequestInfo *s_pendingRequests_socket2          = NULL;
#endif

#if (SIM_COUNT >= 3)
static struct ril_event s_commands_event_socket3;
static struct ril_event s_listen_event_socket3;
static SocketListenParam s_ril_param_socket3;

static pthread_mutex_t s_pendingRequestsMutex_socket3  = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t s_writeMutex_socket3            = PTHREAD_MUTEX_INITIALIZER;
static RequestInfo *s_pendingRequests_socket3          = NULL;
#endif

#if (SIM_COUNT >= 4)
static struct ril_event s_commands_event_socket4;
static struct ril_event s_listen_event_socket4;
static SocketListenParam s_ril_param_socket4;

static pthread_mutex_t s_pendingRequestsMutex_socket4  = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t s_writeMutex_socket4            = PTHREAD_MUTEX_INITIALIZER;
static RequestInfo *s_pendingRequests_socket4          = NULL;
#endif

static struct ril_event s_wake_timeout_event;
static struct ril_event s_debug_event;


static const struct timeval TIMEVAL_WAKE_TIMEOUT = {1,0};


static pthread_mutex_t s_startupMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t s_startupCond = PTHREAD_COND_INITIALIZER;

static pthread_mutex_t s_dispatchMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t s_dispatchCond = PTHREAD_COND_INITIALIZER;

static RequestInfo *s_toDispatchHead = NULL;
static RequestInfo *s_toDispatchTail = NULL;

static UserCallbackInfo *s_last_wake_timeout_info = NULL;

static void *s_lastNITZTimeData = NULL;
static size_t s_lastNITZTimeDataSize;

#if RILC_LOG
    static char printBuf[PRINTBUF_SIZE];
#endif

/*******************************************************************/
static int sendResponse (Parcel &p, RIL_SOCKET_ID socket_id);

static void dispatchVoid (Parcel& p, RequestInfo *pRI);
static void dispatchString (Parcel& p, RequestInfo *pRI);
static void dispatchStrings (Parcel& p, RequestInfo *pRI);
static void dispatchInts (Parcel& p, RequestInfo *pRI);
static void dispatchDial (Parcel& p, RequestInfo *pRI);
static void dispatchSIM_IO (Parcel& p, RequestInfo *pRI);
static void dispatchSIM_APDU (Parcel& p, RequestInfo *pRI);
static void dispatchCallForward(Parcel& p, RequestInfo *pRI);
static void dispatchRaw(Parcel& p, RequestInfo *pRI);
static void dispatchSmsWrite (Parcel &p, RequestInfo *pRI);
static void dispatchDataCall (Parcel& p, RequestInfo *pRI);
static void dispatchVoiceRadioTech (Parcel& p, RequestInfo *pRI);
static void dispatchSetInitialAttachApn (Parcel& p, RequestInfo *pRI);
static void dispatchCdmaSubscriptionSource (Parcel& p, RequestInfo *pRI);

static void dispatchCdmaSms(Parcel &p, RequestInfo *pRI);
static void dispatchImsSms(Parcel &p, RequestInfo *pRI);
static void dispatchImsCdmaSms(Parcel &p, RequestInfo *pRI, uint8_t retry, int32_t messageRef);
static void dispatchImsGsmSms(Parcel &p, RequestInfo *pRI, uint8_t retry, int32_t messageRef);
static void dispatchCdmaSmsAck(Parcel &p, RequestInfo *pRI);
static void dispatchGsmBrSmsCnf(Parcel &p, RequestInfo *pRI);
static void dispatchCdmaBrSmsCnf(Parcel &p, RequestInfo *pRI);
static void dispatchRilCdmaSmsWriteArgs(Parcel &p, RequestInfo *pRI);
static void dispatchNVReadItem(Parcel &p, RequestInfo *pRI);
static void dispatchNVWriteItem(Parcel &p, RequestInfo *pRI);
static void dispatchUiccSubscripton(Parcel &p, RequestInfo *pRI);
static void dispatchSimAuthentication(Parcel &p, RequestInfo *pRI);
static void dispatchDataProfile(Parcel &p, RequestInfo *pRI);
static void dispatchRadioCapability(Parcel &p, RequestInfo *pRI);
static int responseInts(Parcel &p, void *response, size_t responselen);
static int responseStrings(Parcel &p, void *response, size_t responselen);
static int responseString(Parcel &p, void *response, size_t responselen);
static int responseVoid(Parcel &p, void *response, size_t responselen);
static int responseCallList(Parcel &p, void *response, size_t responselen);
static int responseSMS(Parcel &p, void *response, size_t responselen);
static int responseSIM_IO(Parcel &p, void *response, size_t responselen);
static int responseCallForwards(Parcel &p, void *response, size_t responselen);
static int responseDataCallList(Parcel &p, void *response, size_t responselen);
static int responseSetupDataCall(Parcel &p, void *response, size_t responselen);
static int responseRaw(Parcel &p, void *response, size_t responselen);
static int responseSsn(Parcel &p, void *response, size_t responselen);
static int responseSimStatus(Parcel &p, void *response, size_t responselen);
static int responseGsmBrSmsCnf(Parcel &p, void *response, size_t responselen);
static int responseCdmaBrSmsCnf(Parcel &p, void *response, size_t responselen);
static int responseCdmaSms(Parcel &p, void *response, size_t responselen);
static int responseCellList(Parcel &p, void *response, size_t responselen);
static int responseCdmaInformationRecords(Parcel &p,void *response, size_t responselen);
static int responseRilSignalStrength(Parcel &p,void *response, size_t responselen);
static int responseCallRing(Parcel &p, void *response, size_t responselen);
static int responseCdmaSignalInfoRecord(Parcel &p,void *response, size_t responselen);
static int responseCdmaCallWaiting(Parcel &p,void *response, size_t responselen);
static int responseSimRefresh(Parcel &p, void *response, size_t responselen);
static int responseCellInfoList(Parcel &p, void *response, size_t responselen);
static int responseHardwareConfig(Parcel &p, void *response, size_t responselen);
static int responseDcRtInfo(Parcel &p, void *response, size_t responselen);
static int responseRadioCapability(Parcel &p, void *response, size_t responselen);
static int responseSSData(Parcel &p, void *response, size_t responselen);

static int decodeVoiceRadioTechnology (RIL_RadioState radioState);
static int decodeCdmaSubscriptionSource (RIL_RadioState radioState);
static RIL_RadioState processRadioState(RIL_RadioState newRadioState);

static bool isServiceTypeCfQuery(RIL_SsServiceType serType, RIL_SsRequestType reqType);

#ifdef RIL_SHLIB
#if defined(ANDROID_MULTI_SIM)
extern "C" void RIL_onUnsolicitedResponse(int unsolResponse, void *data,
                                size_t datalen, RIL_SOCKET_ID socket_id);
#else
extern "C" void RIL_onUnsolicitedResponse(int unsolResponse, void *data,
                                size_t datalen);
#endif
#endif

#if defined(ANDROID_MULTI_SIM)
#define RIL_UNSOL_RESPONSE(a, b, c, d) RIL_onUnsolicitedResponse((a), (b), (c), (d))
#define CALL_ONREQUEST(a, b, c, d, e) s_callbacks.onRequest((a), (b), (c), (d), (e))
#define CALL_ONSTATEREQUEST(a) s_callbacks.onStateRequest(a)
#else
#define RIL_UNSOL_RESPONSE(a, b, c, d) RIL_onUnsolicitedResponse((a), (b), (c))
#define CALL_ONREQUEST(a, b, c, d, e) s_callbacks.onRequest((a), (b), (c), (d))
#define CALL_ONSTATEREQUEST(a) s_callbacks.onStateRequest()
#endif

static UserCallbackInfo * internalRequestTimedCallback
    (RIL_TimedCallback callback, void *param,
        const struct timeval *relativeTime);

/** Index == requestNumber */
static CommandInfo s_commands[] = {
#include "ril_commands.h"
};

static UnsolResponseInfo s_unsolResponses[] = {
#include "ril_unsol_commands.h"
};

/* For older RILs that do not support new commands RIL_REQUEST_VOICE_RADIO_TECH and
   RIL_UNSOL_VOICE_RADIO_TECH_CHANGED messages, decode the voice radio tech from
   radio state message and store it. Every time there is a change in Radio State
   check to see if voice radio tech changes and notify telephony
 */
int voiceRadioTech = -1;

/* For older RILs that do not support new commands RIL_REQUEST_GET_CDMA_SUBSCRIPTION_SOURCE
   and RIL_UNSOL_CDMA_SUBSCRIPTION_SOURCE_CHANGED messages, decode the subscription
   source from radio state and store it. Every time there is a change in Radio State
   check to see if subscription source changed and notify telephony
 */
int cdmaSubscriptionSource = -1;

/* For older RILs that do not send RIL_UNSOL_RESPONSE_SIM_STATUS_CHANGED, decode the
   SIM/RUIM state from radio state and store it. Every time there is a change in Radio State,
   check to see if SIM/RUIM status changed and notify telephony
 */
int simRuimStatus = -1;

static char * RIL_getRilSocketName() {
    return rild;
}

extern "C"
void RIL_setRilSocketName(char * s) {
    strncpy(rild, s, MAX_SOCKET_NAME_LENGTH);
}

static char *
strdupReadString(Parcel &p) {
    size_t stringlen;
    const char16_t *s16;

    s16 = p.readString16Inplace(&stringlen);

    return strndup16to8(s16, stringlen);
}

static status_t
readStringFromParcelInplace(Parcel &p, char *str, size_t maxLen) {
    size_t s16Len;
    const char16_t *s16;

    s16 = p.readString16Inplace(&s16Len);
    if (s16 == NULL) {
        return NO_MEMORY;
    }
    size_t strLen = strnlen16to8(s16, s16Len);
    if ((strLen + 1) > maxLen) {
        return NO_MEMORY;
    }
    if (strncpy16to8(str, s16, strLen) == NULL) {
        return NO_MEMORY;
    } else {
        return NO_ERROR;
    }
}

static void writeStringToParcel(Parcel &p, const char *s) {
    char16_t *s16;
    size_t s16_len;
    s16 = strdup8to16(s, &s16_len);
    p.writeString16(s16, s16_len);
    free(s16);
}


static void
memsetString (char *s) {
    if (s != NULL) {
        memset (s, 0, strlen(s));
    }
}

void   nullParcelReleaseFunction (const uint8_t* data, size_t dataSize,
                                    const size_t* objects, size_t objectsSize,
                                        void* cookie) {
    // do nothing -- the data reference lives longer than the Parcel object
}

/**
 * To be called from dispatch thread
 * Issue a single local request, ensuring that the response
 * is not sent back up to the command process
 */
static void
issueLocalRequest(int request, void *data, int len, RIL_SOCKET_ID socket_id) {
    RequestInfo *pRI;
    int ret;
    /* Hook for current context */
    /* pendingRequestsMutextHook refer to &s_pendingRequestsMutex */
    pthread_mutex_t* pendingRequestsMutexHook = &s_pendingRequestsMutex;
    /* pendingRequestsHook refer to &s_pendingRequests */
    RequestInfo**    pendingRequestsHook = &s_pendingRequests;

#if (SIM_COUNT == 2)
    if (socket_id == RIL_SOCKET_2) {
        pendingRequestsMutexHook = &s_pendingRequestsMutex_socket2;
        pendingRequestsHook = &s_pendingRequests_socket2;
    }
#endif

    pRI = (RequestInfo *)calloc(1, sizeof(RequestInfo));

    pRI->local = 1;
    pRI->token = 0xffffffff;        // token is not used in this context
    pRI->pCI = &(s_commands[request]);
    pRI->socket_id = socket_id;

    ret = pthread_mutex_lock(pendingRequestsMutexHook);
    assert (ret == 0);

    pRI->p_next = *pendingRequestsHook;
    *pendingRequestsHook = pRI;

    ret = pthread_mutex_unlock(pendingRequestsMutexHook);
    assert (ret == 0);

    RLOGD("C[locl]> %s", requestToString(request));

    CALL_ONREQUEST(request, data, len, pRI, pRI->socket_id);
}



static int
processCommandBuffer(void *buffer, size_t buflen, RIL_SOCKET_ID socket_id) {
    Parcel p;
    status_t status;
    int32_t request;
    int32_t token;
    RequestInfo *pRI;
    int ret;
    /* Hook for current context */
    /* pendingRequestsMutextHook refer to &s_pendingRequestsMutex */
    pthread_mutex_t* pendingRequestsMutexHook = &s_pendingRequestsMutex;
    /* pendingRequestsHook refer to &s_pendingRequests */
    RequestInfo**    pendingRequestsHook = &s_pendingRequests;

    p.setData((uint8_t *) buffer, buflen);

    // status checked at end
    status = p.readInt32(&request);
    status = p.readInt32 (&token);

    RLOGD("SOCKET %s REQUEST: %s length:%d", rilSocketIdToString(socket_id), requestToString(request), buflen);

#if (SIM_COUNT >= 2)
    if (socket_id == RIL_SOCKET_2) {
        pendingRequestsMutexHook = &s_pendingRequestsMutex_socket2;
        pendingRequestsHook = &s_pendingRequests_socket2;
    }
#if (SIM_COUNT >= 3)
    else if (socket_id == RIL_SOCKET_3) {
        pendingRequestsMutexHook = &s_pendingRequestsMutex_socket3;
        pendingRequestsHook = &s_pendingRequests_socket3;
    }
#endif
#if (SIM_COUNT >= 4)
    else if (socket_id == RIL_SOCKET_4) {
        pendingRequestsMutexHook = &s_pendingRequestsMutex_socket4;
        pendingRequestsHook = &s_pendingRequests_socket4;
    }
#endif
#endif

    if (status != NO_ERROR) {
        RLOGE("invalid request block");
        return 0;
    }

    if (request < 1 || request >= (int32_t)NUM_ELEMS(s_commands)) {
        Parcel pErr;
        RLOGE("unsupported request code %d token %d", request, token);
        // FIXME this should perhaps return a response
        pErr.writeInt32 (RESPONSE_SOLICITED);
        pErr.writeInt32 (token);
        pErr.writeInt32 (RIL_E_GENERIC_FAILURE);

        sendResponse(pErr, socket_id);
        return 0;
    }


    pRI = (RequestInfo *)calloc(1, sizeof(RequestInfo));

    pRI->token = token;
    pRI->pCI = &(s_commands[request]);
    pRI->socket_id = socket_id;

    ret = pthread_mutex_lock(pendingRequestsMutexHook);
    assert (ret == 0);

    pRI->p_next = *pendingRequestsHook;
    *pendingRequestsHook = pRI;

    ret = pthread_mutex_unlock(pendingRequestsMutexHook);
    assert (ret == 0);

/*    sLastDispatchedToken = token; */

    pRI->pCI->dispatchFunction(p, pRI);

    return 0;
}

static void
invalidCommandBlock (RequestInfo *pRI) {
    RLOGE("invalid command block for token %d request %s",
                pRI->token, requestToString(pRI->pCI->requestNumber));
}

/** Callee expects NULL */
static void
dispatchVoid (Parcel& p, RequestInfo *pRI) {
    clearPrintBuf;
    printRequest(pRI->token, pRI->pCI->requestNumber);
    CALL_ONREQUEST(pRI->pCI->requestNumber, NULL, 0, pRI, pRI->socket_id);
}

/** Callee expects const char * */
static void
dispatchString (Parcel& p, RequestInfo *pRI) {
    status_t status;
    size_t datalen;
    size_t stringlen;
    char *string8 = NULL;

    string8 = strdupReadString(p);

    startRequest;
    appendPrintBuf("%s%s", printBuf, string8);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, string8,
                       sizeof(char *), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(string8);
#endif

    free(string8);
    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

/** Callee expects const char ** */
static void
dispatchStrings (Parcel &p, RequestInfo *pRI) {
    int32_t countStrings;
    status_t status;
    size_t datalen;
    char **pStrings;

    status = p.readInt32 (&countStrings);

    if (status != NO_ERROR) {
        goto invalid;
    }

    startRequest;
    if (countStrings == 0) {
        // just some non-null pointer
        pStrings = (char **)alloca(sizeof(char *));
        datalen = 0;
    } else if (((int)countStrings) == -1) {
        pStrings = NULL;
        datalen = 0;
    } else {
        datalen = sizeof(char *) * countStrings;

        pStrings = (char **)alloca(datalen);

        for (int i = 0 ; i < countStrings ; i++) {
            pStrings[i] = strdupReadString(p);
            appendPrintBuf("%s%s,", printBuf, pStrings[i]);
        }
    }
    removeLastChar;
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, pStrings, datalen, pRI, pRI->socket_id);

    if (pStrings != NULL) {
        for (int i = 0 ; i < countStrings ; i++) {
#ifdef MEMSET_FREED
            memsetString (pStrings[i]);
#endif
            free(pStrings[i]);
        }

#ifdef MEMSET_FREED
        memset(pStrings, 0, datalen);
#endif
    }

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

/** Callee expects const int * */
static void
dispatchInts (Parcel &p, RequestInfo *pRI) {
    int32_t count;
    status_t status;
    size_t datalen;
    int *pInts;

    status = p.readInt32 (&count);

    if (status != NO_ERROR || count == 0) {
        goto invalid;
    }

    datalen = sizeof(int) * count;
    pInts = (int *)alloca(datalen);

    startRequest;
    for (int i = 0 ; i < count ; i++) {
        int32_t t;

        status = p.readInt32(&t);
        pInts[i] = (int)t;
        appendPrintBuf("%s%d,", printBuf, t);

        if (status != NO_ERROR) {
            goto invalid;
        }
   }
   removeLastChar;
   closeRequest;
   printRequest(pRI->token, pRI->pCI->requestNumber);

   CALL_ONREQUEST(pRI->pCI->requestNumber, const_cast<int *>(pInts),
                       datalen, pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(pInts, 0, datalen);
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}


/**
 * Callee expects const RIL_SMS_WriteArgs *
 * Payload is:
 *   int32_t status
 *   String pdu
 */
static void
dispatchSmsWrite (Parcel &p, RequestInfo *pRI) {
    RIL_SMS_WriteArgs args;
    int32_t t;
    status_t status;

    memset (&args, 0, sizeof(args));

    status = p.readInt32(&t);
    args.status = (int)t;

    args.pdu = strdupReadString(p);

    if (status != NO_ERROR || args.pdu == NULL) {
        goto invalid;
    }

    args.smsc = strdupReadString(p);

    startRequest;
    appendPrintBuf("%s%d,%s,smsc=%s", printBuf, args.status,
        (char*)args.pdu,  (char*)args.smsc);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &args, sizeof(args), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString (args.pdu);
#endif

    free (args.pdu);

#ifdef MEMSET_FREED
    memset(&args, 0, sizeof(args));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

/**
 * Callee expects const RIL_Dial *
 * Payload is:
 *   String address
 *   int32_t clir
 */
static void
dispatchDial (Parcel &p, RequestInfo *pRI) {
    RIL_Dial dial;
    RIL_UUS_Info uusInfo;
    int32_t sizeOfDial;
    int32_t t;
    int32_t uusPresent;
    status_t status;

    memset (&dial, 0, sizeof(dial));

    dial.address = strdupReadString(p);

    status = p.readInt32(&t);
    dial.clir = (int)t;

    if (status != NO_ERROR || dial.address == NULL) {
        goto invalid;
    }

    if (s_callbacks.version < 3) { // Remove when partners upgrade to version 3
        uusPresent = 0;
        sizeOfDial = sizeof(dial) - sizeof(RIL_UUS_Info *);
    } else {
        status = p.readInt32(&uusPresent);

        if (status != NO_ERROR) {
            goto invalid;
        }

        if (uusPresent == 0) {
            dial.uusInfo = NULL;
        } else {
            int32_t len;

            memset(&uusInfo, 0, sizeof(RIL_UUS_Info));

            status = p.readInt32(&t);
            uusInfo.uusType = (RIL_UUS_Type) t;

            status = p.readInt32(&t);
            uusInfo.uusDcs = (RIL_UUS_DCS) t;

            status = p.readInt32(&len);
            if (status != NO_ERROR) {
                goto invalid;
            }

            // The java code writes -1 for null arrays
            if (((int) len) == -1) {
                uusInfo.uusData = NULL;
                len = 0;
            } else {
                uusInfo.uusData = (char*) p.readInplace(len);
            }

            uusInfo.uusLength = len;
            dial.uusInfo = &uusInfo;
        }
        sizeOfDial = sizeof(dial);
    }

    startRequest;
    appendPrintBuf("%snum=%s,clir=%d", printBuf, dial.address, dial.clir);
    if (uusPresent) {
        appendPrintBuf("%s,uusType=%d,uusDcs=%d,uusLen=%d", printBuf,
                dial.uusInfo->uusType, dial.uusInfo->uusDcs,
                dial.uusInfo->uusLength);
    }
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &dial, sizeOfDial, pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString (dial.address);
#endif

    free (dial.address);

#ifdef MEMSET_FREED
    memset(&uusInfo, 0, sizeof(RIL_UUS_Info));
    memset(&dial, 0, sizeof(dial));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

/**
 * Callee expects const RIL_SIM_IO *
 * Payload is:
 *   int32_t command
 *   int32_t fileid
 *   String path
 *   int32_t p1, p2, p3
 *   String data
 *   String pin2
 *   String aidPtr
 */
static void
dispatchSIM_IO (Parcel &p, RequestInfo *pRI) {
    union RIL_SIM_IO {
        RIL_SIM_IO_v6 v6;
        RIL_SIM_IO_v5 v5;
    } simIO;

    int32_t t;
    int size;
    status_t status;

    memset (&simIO, 0, sizeof(simIO));

    // note we only check status at the end

    status = p.readInt32(&t);
    simIO.v6.command = (int)t;

    status = p.readInt32(&t);
    simIO.v6.fileid = (int)t;

    simIO.v6.path = strdupReadString(p);

    status = p.readInt32(&t);
    simIO.v6.p1 = (int)t;

    status = p.readInt32(&t);
    simIO.v6.p2 = (int)t;

    status = p.readInt32(&t);
    simIO.v6.p3 = (int)t;

    simIO.v6.data = strdupReadString(p);
    simIO.v6.pin2 = strdupReadString(p);
    simIO.v6.aidPtr = strdupReadString(p);

    startRequest;
    appendPrintBuf("%scmd=0x%X,efid=0x%X,path=%s,%d,%d,%d,%s,pin2=%s,aid=%s", printBuf,
        simIO.v6.command, simIO.v6.fileid, (char*)simIO.v6.path,
        simIO.v6.p1, simIO.v6.p2, simIO.v6.p3,
        (char*)simIO.v6.data,  (char*)simIO.v6.pin2, simIO.v6.aidPtr);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    if (status != NO_ERROR) {
        goto invalid;
    }

    size = (s_callbacks.version < 6) ? sizeof(simIO.v5) : sizeof(simIO.v6);
    CALL_ONREQUEST(pRI->pCI->requestNumber, &simIO, size, pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString (simIO.v6.path);
    memsetString (simIO.v6.data);
    memsetString (simIO.v6.pin2);
    memsetString (simIO.v6.aidPtr);
#endif

    free (simIO.v6.path);
    free (simIO.v6.data);
    free (simIO.v6.pin2);
    free (simIO.v6.aidPtr);

#ifdef MEMSET_FREED
    memset(&simIO, 0, sizeof(simIO));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

/**
 * Callee expects const RIL_SIM_APDU *
 * Payload is:
 *   int32_t sessionid
 *   int32_t cla
 *   int32_t instruction
 *   int32_t p1, p2, p3
 *   String data
 */
static void
dispatchSIM_APDU (Parcel &p, RequestInfo *pRI) {
    int32_t t;
    status_t status;
    RIL_SIM_APDU apdu;

    memset (&apdu, 0, sizeof(RIL_SIM_APDU));

    // Note we only check status at the end. Any single failure leads to
    // subsequent reads filing.
    status = p.readInt32(&t);
    apdu.sessionid = (int)t;

    status = p.readInt32(&t);
    apdu.cla = (int)t;

    status = p.readInt32(&t);
    apdu.instruction = (int)t;

    status = p.readInt32(&t);
    apdu.p1 = (int)t;

    status = p.readInt32(&t);
    apdu.p2 = (int)t;

    status = p.readInt32(&t);
    apdu.p3 = (int)t;

    apdu.data = strdupReadString(p);

    startRequest;
    appendPrintBuf("%ssessionid=%d,cla=%d,ins=%d,p1=%d,p2=%d,p3=%d,data=%s",
        printBuf, apdu.sessionid, apdu.cla, apdu.instruction, apdu.p1, apdu.p2,
        apdu.p3, (char*)apdu.data);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    if (status != NO_ERROR) {
        goto invalid;
    }

    CALL_ONREQUEST(pRI->pCI->requestNumber, &apdu, sizeof(RIL_SIM_APDU), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(apdu.data);
#endif
    free(apdu.data);

#ifdef MEMSET_FREED
    memset(&apdu, 0, sizeof(RIL_SIM_APDU));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}


/**
 * Callee expects const RIL_CallForwardInfo *
 * Payload is:
 *  int32_t status/action
 *  int32_t reason
 *  int32_t serviceCode
 *  int32_t toa
 *  String number  (0 length -> null)
 *  int32_t timeSeconds
 */
static void
dispatchCallForward(Parcel &p, RequestInfo *pRI) {
    RIL_CallForwardInfo cff;
    int32_t t;
    status_t status;

    memset (&cff, 0, sizeof(cff));

    // note we only check status at the end

    status = p.readInt32(&t);
    cff.status = (int)t;

    status = p.readInt32(&t);
    cff.reason = (int)t;

    status = p.readInt32(&t);
    cff.serviceClass = (int)t;

    status = p.readInt32(&t);
    cff.toa = (int)t;

    cff.number = strdupReadString(p);

    status = p.readInt32(&t);
    cff.timeSeconds = (int)t;

    if (status != NO_ERROR) {
        goto invalid;
    }

    // special case: number 0-length fields is null

    if (cff.number != NULL && strlen (cff.number) == 0) {
        cff.number = NULL;
    }

    startRequest;
    appendPrintBuf("%sstat=%d,reason=%d,serv=%d,toa=%d,%s,tout=%d", printBuf,
        cff.status, cff.reason, cff.serviceClass, cff.toa,
        (char*)cff.number, cff.timeSeconds);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &cff, sizeof(cff), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(cff.number);
#endif

    free (cff.number);

#ifdef MEMSET_FREED
    memset(&cff, 0, sizeof(cff));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}


static void
dispatchRaw(Parcel &p, RequestInfo *pRI) {
    int32_t len;
    status_t status;
    const void *data;

    status = p.readInt32(&len);

    if (status != NO_ERROR) {
        goto invalid;
    }

    // The java code writes -1 for null arrays
    if (((int)len) == -1) {
        data = NULL;
        len = 0;
    }

    data = p.readInplace(len);

    startRequest;
    appendPrintBuf("%sraw_size=%d", printBuf, len);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, const_cast<void *>(data), len, pRI, pRI->socket_id);

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

static status_t
constructCdmaSms(Parcel &p, RequestInfo *pRI, RIL_CDMA_SMS_Message& rcsm) {
    int32_t  t;
    uint8_t ut;
    status_t status;
    int32_t digitCount;
    int digitLimit;

    memset(&rcsm, 0, sizeof(rcsm));

    status = p.readInt32(&t);
    rcsm.uTeleserviceID = (int) t;

    status = p.read(&ut,sizeof(ut));
    rcsm.bIsServicePresent = (uint8_t) ut;

    status = p.readInt32(&t);
    rcsm.uServicecategory = (int) t;

    status = p.readInt32(&t);
    rcsm.sAddress.digit_mode = (RIL_CDMA_SMS_DigitMode) t;

    status = p.readInt32(&t);
    rcsm.sAddress.number_mode = (RIL_CDMA_SMS_NumberMode) t;

    status = p.readInt32(&t);
    rcsm.sAddress.number_type = (RIL_CDMA_SMS_NumberType) t;

    status = p.readInt32(&t);
    rcsm.sAddress.number_plan = (RIL_CDMA_SMS_NumberPlan) t;

    status = p.read(&ut,sizeof(ut));
    rcsm.sAddress.number_of_digits= (uint8_t) ut;

    digitLimit= MIN((rcsm.sAddress.number_of_digits), RIL_CDMA_SMS_ADDRESS_MAX);
    for(digitCount =0 ; digitCount < digitLimit; digitCount ++) {
        status = p.read(&ut,sizeof(ut));
        rcsm.sAddress.digits[digitCount] = (uint8_t) ut;
    }

    status = p.readInt32(&t);
    rcsm.sSubAddress.subaddressType = (RIL_CDMA_SMS_SubaddressType) t;

    status = p.read(&ut,sizeof(ut));
    rcsm.sSubAddress.odd = (uint8_t) ut;

    status = p.read(&ut,sizeof(ut));
    rcsm.sSubAddress.number_of_digits = (uint8_t) ut;

    digitLimit= MIN((rcsm.sSubAddress.number_of_digits), RIL_CDMA_SMS_SUBADDRESS_MAX);
    for(digitCount =0 ; digitCount < digitLimit; digitCount ++) {
        status = p.read(&ut,sizeof(ut));
        rcsm.sSubAddress.digits[digitCount] = (uint8_t) ut;
    }

    status = p.readInt32(&t);
    rcsm.uBearerDataLen = (int) t;

    digitLimit= MIN((rcsm.uBearerDataLen), RIL_CDMA_SMS_BEARER_DATA_MAX);
    for(digitCount =0 ; digitCount < digitLimit; digitCount ++) {
        status = p.read(&ut, sizeof(ut));
        rcsm.aBearerData[digitCount] = (uint8_t) ut;
    }

    if (status != NO_ERROR) {
        return status;
    }

    startRequest;
    appendPrintBuf("%suTeleserviceID=%d, bIsServicePresent=%d, uServicecategory=%d, \
            sAddress.digit_mode=%d, sAddress.Number_mode=%d, sAddress.number_type=%d, ",
            printBuf, rcsm.uTeleserviceID,rcsm.bIsServicePresent,rcsm.uServicecategory,
            rcsm.sAddress.digit_mode, rcsm.sAddress.number_mode,rcsm.sAddress.number_type);
    closeRequest;

    printRequest(pRI->token, pRI->pCI->requestNumber);

    return status;
}

static void
dispatchCdmaSms(Parcel &p, RequestInfo *pRI) {
    RIL_CDMA_SMS_Message rcsm;

    ALOGD("dispatchCdmaSms");
    if (NO_ERROR != constructCdmaSms(p, pRI, rcsm)) {
        goto invalid;
    }

    CALL_ONREQUEST(pRI->pCI->requestNumber, &rcsm, sizeof(rcsm),pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&rcsm, 0, sizeof(rcsm));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchImsCdmaSms(Parcel &p, RequestInfo *pRI, uint8_t retry, int32_t messageRef) {
    RIL_IMS_SMS_Message rism;
    RIL_CDMA_SMS_Message rcsm;

    ALOGD("dispatchImsCdmaSms: retry=%d, messageRef=%d", retry, messageRef);

    if (NO_ERROR != constructCdmaSms(p, pRI, rcsm)) {
        goto invalid;
    }
    memset(&rism, 0, sizeof(rism));
    rism.tech = RADIO_TECH_3GPP2;
    rism.retry = retry;
    rism.messageRef = messageRef;
    rism.message.cdmaMessage = &rcsm;

    CALL_ONREQUEST(pRI->pCI->requestNumber, &rism,
            sizeof(RIL_RadioTechnologyFamily)+sizeof(uint8_t)+sizeof(int32_t)
            +sizeof(rcsm),pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&rcsm, 0, sizeof(rcsm));
    memset(&rism, 0, sizeof(rism));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchImsGsmSms(Parcel &p, RequestInfo *pRI, uint8_t retry, int32_t messageRef) {
    RIL_IMS_SMS_Message rism;
    int32_t countStrings;
    status_t status;
    size_t datalen;
    char **pStrings;
    ALOGD("dispatchImsGsmSms: retry=%d, messageRef=%d", retry, messageRef);

    status = p.readInt32 (&countStrings);

    if (status != NO_ERROR) {
        goto invalid;
    }

    memset(&rism, 0, sizeof(rism));
    rism.tech = RADIO_TECH_3GPP;
    rism.retry = retry;
    rism.messageRef = messageRef;

    startRequest;
    appendPrintBuf("%stech=%d, retry=%d, messageRef=%d, ", printBuf,
                    (int)rism.tech, (int)rism.retry, rism.messageRef);
    if (countStrings == 0) {
        // just some non-null pointer
        pStrings = (char **)alloca(sizeof(char *));
        datalen = 0;
    } else if (((int)countStrings) == -1) {
        pStrings = NULL;
        datalen = 0;
    } else {
        datalen = sizeof(char *) * countStrings;

        pStrings = (char **)alloca(datalen);

        for (int i = 0 ; i < countStrings ; i++) {
            pStrings[i] = strdupReadString(p);
            appendPrintBuf("%s%s,", printBuf, pStrings[i]);
        }
    }
    removeLastChar;
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    rism.message.gsmMessage = pStrings;
    CALL_ONREQUEST(pRI->pCI->requestNumber, &rism,
            sizeof(RIL_RadioTechnologyFamily)+sizeof(uint8_t)+sizeof(int32_t)
            +datalen, pRI, pRI->socket_id);

    if (pStrings != NULL) {
        for (int i = 0 ; i < countStrings ; i++) {
#ifdef MEMSET_FREED
            memsetString (pStrings[i]);
#endif
            free(pStrings[i]);
        }

#ifdef MEMSET_FREED
        memset(pStrings, 0, datalen);
#endif
    }

#ifdef MEMSET_FREED
    memset(&rism, 0, sizeof(rism));
#endif
    return;
invalid:
    ALOGE("dispatchImsGsmSms invalid block");
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchImsSms(Parcel &p, RequestInfo *pRI) {
    int32_t  t;
    status_t status = p.readInt32(&t);
    RIL_RadioTechnologyFamily format;
    uint8_t retry;
    int32_t messageRef;

    ALOGD("dispatchImsSms");
    if (status != NO_ERROR) {
        goto invalid;
    }
    format = (RIL_RadioTechnologyFamily) t;

    // read retry field
    status = p.read(&retry,sizeof(retry));
    if (status != NO_ERROR) {
        goto invalid;
    }
    // read messageRef field
    status = p.read(&messageRef,sizeof(messageRef));
    if (status != NO_ERROR) {
        goto invalid;
    }

    if (RADIO_TECH_3GPP == format) {
        dispatchImsGsmSms(p, pRI, retry, messageRef);
    } else if (RADIO_TECH_3GPP2 == format) {
        dispatchImsCdmaSms(p, pRI, retry, messageRef);
    } else {
        ALOGE("requestImsSendSMS invalid format value =%d", format);
    }

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchCdmaSmsAck(Parcel &p, RequestInfo *pRI) {
    RIL_CDMA_SMS_Ack rcsa;
    int32_t  t;
    status_t status;
    int32_t digitCount;

    memset(&rcsa, 0, sizeof(rcsa));

    status = p.readInt32(&t);
    rcsa.uErrorClass = (RIL_CDMA_SMS_ErrorClass) t;

    status = p.readInt32(&t);
    rcsa.uSMSCauseCode = (int) t;

    if (status != NO_ERROR) {
        goto invalid;
    }

    startRequest;
    appendPrintBuf("%suErrorClass=%d, uTLStatus=%d, ",
            printBuf, rcsa.uErrorClass, rcsa.uSMSCauseCode);
    closeRequest;

    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &rcsa, sizeof(rcsa),pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&rcsa, 0, sizeof(rcsa));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchGsmBrSmsCnf(Parcel &p, RequestInfo *pRI) {
    int32_t t;
    status_t status;
    int32_t num;

    status = p.readInt32(&num);
    if (status != NO_ERROR) {
        goto invalid;
    }

    {
        RIL_GSM_BroadcastSmsConfigInfo gsmBci[num];
        RIL_GSM_BroadcastSmsConfigInfo *gsmBciPtrs[num];

        startRequest;
        for (int i = 0 ; i < num ; i++ ) {
            gsmBciPtrs[i] = &gsmBci[i];

            status = p.readInt32(&t);
            gsmBci[i].fromServiceId = (int) t;

            status = p.readInt32(&t);
            gsmBci[i].toServiceId = (int) t;

            status = p.readInt32(&t);
            gsmBci[i].fromCodeScheme = (int) t;

            status = p.readInt32(&t);
            gsmBci[i].toCodeScheme = (int) t;

            status = p.readInt32(&t);
            gsmBci[i].selected = (uint8_t) t;

            appendPrintBuf("%s [%d: fromServiceId=%d, toServiceId =%d, \
                  fromCodeScheme=%d, toCodeScheme=%d, selected =%d]", printBuf, i,
                  gsmBci[i].fromServiceId, gsmBci[i].toServiceId,
                  gsmBci[i].fromCodeScheme, gsmBci[i].toCodeScheme,
                  gsmBci[i].selected);
        }
        closeRequest;

        if (status != NO_ERROR) {
            goto invalid;
        }

        CALL_ONREQUEST(pRI->pCI->requestNumber,
                              gsmBciPtrs,
                              num * sizeof(RIL_GSM_BroadcastSmsConfigInfo *),
                              pRI, pRI->socket_id);

#ifdef MEMSET_FREED
        memset(gsmBci, 0, num * sizeof(RIL_GSM_BroadcastSmsConfigInfo));
        memset(gsmBciPtrs, 0, num * sizeof(RIL_GSM_BroadcastSmsConfigInfo *));
#endif
    }

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void
dispatchCdmaBrSmsCnf(Parcel &p, RequestInfo *pRI) {
    int32_t t;
    status_t status;
    int32_t num;

    status = p.readInt32(&num);
    if (status != NO_ERROR) {
        goto invalid;
    }

    {
        RIL_CDMA_BroadcastSmsConfigInfo cdmaBci[num];
        RIL_CDMA_BroadcastSmsConfigInfo *cdmaBciPtrs[num];

        startRequest;
        for (int i = 0 ; i < num ; i++ ) {
            cdmaBciPtrs[i] = &cdmaBci[i];

            status = p.readInt32(&t);
            cdmaBci[i].service_category = (int) t;

            status = p.readInt32(&t);
            cdmaBci[i].language = (int) t;

            status = p.readInt32(&t);
            cdmaBci[i].selected = (uint8_t) t;

            appendPrintBuf("%s [%d: service_category=%d, language =%d, \
                  entries.bSelected =%d]", printBuf, i, cdmaBci[i].service_category,
                  cdmaBci[i].language, cdmaBci[i].selected);
        }
        closeRequest;

        if (status != NO_ERROR) {
            goto invalid;
        }

        CALL_ONREQUEST(pRI->pCI->requestNumber,
                              cdmaBciPtrs,
                              num * sizeof(RIL_CDMA_BroadcastSmsConfigInfo *),
                              pRI, pRI->socket_id);

#ifdef MEMSET_FREED
        memset(cdmaBci, 0, num * sizeof(RIL_CDMA_BroadcastSmsConfigInfo));
        memset(cdmaBciPtrs, 0, num * sizeof(RIL_CDMA_BroadcastSmsConfigInfo *));
#endif
    }

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchRilCdmaSmsWriteArgs(Parcel &p, RequestInfo *pRI) {
    RIL_CDMA_SMS_WriteArgs rcsw;
    int32_t  t;
    uint32_t ut;
    uint8_t  uct;
    status_t status;
    int32_t  digitCount;

    memset(&rcsw, 0, sizeof(rcsw));

    status = p.readInt32(&t);
    rcsw.status = t;

    status = p.readInt32(&t);
    rcsw.message.uTeleserviceID = (int) t;

    status = p.read(&uct,sizeof(uct));
    rcsw.message.bIsServicePresent = (uint8_t) uct;

    status = p.readInt32(&t);
    rcsw.message.uServicecategory = (int) t;

    status = p.readInt32(&t);
    rcsw.message.sAddress.digit_mode = (RIL_CDMA_SMS_DigitMode) t;

    status = p.readInt32(&t);
    rcsw.message.sAddress.number_mode = (RIL_CDMA_SMS_NumberMode) t;

    status = p.readInt32(&t);
    rcsw.message.sAddress.number_type = (RIL_CDMA_SMS_NumberType) t;

    status = p.readInt32(&t);
    rcsw.message.sAddress.number_plan = (RIL_CDMA_SMS_NumberPlan) t;

    status = p.read(&uct,sizeof(uct));
    rcsw.message.sAddress.number_of_digits = (uint8_t) uct;

    for(digitCount = 0 ; digitCount < RIL_CDMA_SMS_ADDRESS_MAX; digitCount ++) {
        status = p.read(&uct,sizeof(uct));
        rcsw.message.sAddress.digits[digitCount] = (uint8_t) uct;
    }

    status = p.readInt32(&t);
    rcsw.message.sSubAddress.subaddressType = (RIL_CDMA_SMS_SubaddressType) t;

    status = p.read(&uct,sizeof(uct));
    rcsw.message.sSubAddress.odd = (uint8_t) uct;

    status = p.read(&uct,sizeof(uct));
    rcsw.message.sSubAddress.number_of_digits = (uint8_t) uct;

    for(digitCount = 0 ; digitCount < RIL_CDMA_SMS_SUBADDRESS_MAX; digitCount ++) {
        status = p.read(&uct,sizeof(uct));
        rcsw.message.sSubAddress.digits[digitCount] = (uint8_t) uct;
    }

    status = p.readInt32(&t);
    rcsw.message.uBearerDataLen = (int) t;

    for(digitCount = 0 ; digitCount < RIL_CDMA_SMS_BEARER_DATA_MAX; digitCount ++) {
        status = p.read(&uct, sizeof(uct));
        rcsw.message.aBearerData[digitCount] = (uint8_t) uct;
    }

    if (status != NO_ERROR) {
        goto invalid;
    }

    startRequest;
    appendPrintBuf("%sstatus=%d, message.uTeleserviceID=%d, message.bIsServicePresent=%d, \
            message.uServicecategory=%d, message.sAddress.digit_mode=%d, \
            message.sAddress.number_mode=%d, \
            message.sAddress.number_type=%d, ",
            printBuf, rcsw.status, rcsw.message.uTeleserviceID, rcsw.message.bIsServicePresent,
            rcsw.message.uServicecategory, rcsw.message.sAddress.digit_mode,
            rcsw.message.sAddress.number_mode,
            rcsw.message.sAddress.number_type);
    closeRequest;

    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &rcsw, sizeof(rcsw),pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&rcsw, 0, sizeof(rcsw));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;

}

// For backwards compatibility in RIL_REQUEST_SETUP_DATA_CALL.
// Version 4 of the RIL interface adds a new PDP type parameter to support
// IPv6 and dual-stack PDP contexts. When dealing with a previous version of
// RIL, remove the parameter from the request.
static void dispatchDataCall(Parcel& p, RequestInfo *pRI) {
    // In RIL v3, REQUEST_SETUP_DATA_CALL takes 6 parameters.
    const int numParamsRilV3 = 6;

    // The first bytes of the RIL parcel contain the request number and the
    // serial number - see processCommandBuffer(). Copy them over too.
    int pos = p.dataPosition();

    int numParams = p.readInt32();
    if (s_callbacks.version < 4 && numParams > numParamsRilV3) {
      Parcel p2;
      p2.appendFrom(&p, 0, pos);
      p2.writeInt32(numParamsRilV3);
      for(int i = 0; i < numParamsRilV3; i++) {
        p2.writeString16(p.readString16());
      }
      p2.setDataPosition(pos);
      dispatchStrings(p2, pRI);
    } else {
      p.setDataPosition(pos);
      dispatchStrings(p, pRI);
    }
}

// For backwards compatibility with RILs that dont support RIL_REQUEST_VOICE_RADIO_TECH.
// When all RILs handle this request, this function can be removed and
// the request can be sent directly to the RIL using dispatchVoid.
static void dispatchVoiceRadioTech(Parcel& p, RequestInfo *pRI) {
    RIL_RadioState state = CALL_ONSTATEREQUEST((RIL_SOCKET_ID)pRI->socket_id);

    if ((RADIO_STATE_UNAVAILABLE == state) || (RADIO_STATE_OFF == state)) {
        RIL_onRequestComplete(pRI, RIL_E_RADIO_NOT_AVAILABLE, NULL, 0);
    }

    // RILs that support RADIO_STATE_ON should support this request.
    if (RADIO_STATE_ON == state) {
        dispatchVoid(p, pRI);
        return;
    }

    // For Older RILs, that do not support RADIO_STATE_ON, assume that they
    // will not support this new request either and decode Voice Radio Technology
    // from Radio State
    voiceRadioTech = decodeVoiceRadioTechnology(state);

    if (voiceRadioTech < 0)
        RIL_onRequestComplete(pRI, RIL_E_GENERIC_FAILURE, NULL, 0);
    else
        RIL_onRequestComplete(pRI, RIL_E_SUCCESS, &voiceRadioTech, sizeof(int));
}

// For backwards compatibility in RIL_REQUEST_CDMA_GET_SUBSCRIPTION_SOURCE:.
// When all RILs handle this request, this function can be removed and
// the request can be sent directly to the RIL using dispatchVoid.
static void dispatchCdmaSubscriptionSource(Parcel& p, RequestInfo *pRI) {
    RIL_RadioState state = CALL_ONSTATEREQUEST((RIL_SOCKET_ID)pRI->socket_id);

    if ((RADIO_STATE_UNAVAILABLE == state) || (RADIO_STATE_OFF == state)) {
        RIL_onRequestComplete(pRI, RIL_E_RADIO_NOT_AVAILABLE, NULL, 0);
    }

    // RILs that support RADIO_STATE_ON should support this request.
    if (RADIO_STATE_ON == state) {
        dispatchVoid(p, pRI);
        return;
    }

    // For Older RILs, that do not support RADIO_STATE_ON, assume that they
    // will not support this new request either and decode CDMA Subscription Source
    // from Radio State
    cdmaSubscriptionSource = decodeCdmaSubscriptionSource(state);

    if (cdmaSubscriptionSource < 0)
        RIL_onRequestComplete(pRI, RIL_E_GENERIC_FAILURE, NULL, 0);
    else
        RIL_onRequestComplete(pRI, RIL_E_SUCCESS, &cdmaSubscriptionSource, sizeof(int));
}

static void dispatchSetInitialAttachApn(Parcel &p, RequestInfo *pRI)
{
    RIL_InitialAttachApn pf;
    int32_t  t;
    status_t status;

    memset(&pf, 0, sizeof(pf));

    pf.apn = strdupReadString(p);
    pf.protocol = strdupReadString(p);

    status = p.readInt32(&t);
    pf.authtype = (int) t;

    pf.username = strdupReadString(p);
    pf.password = strdupReadString(p);

    startRequest;
    appendPrintBuf("%sapn=%s, protocol=%s, authtype=%d, username=%s, password=%s",
            printBuf, pf.apn, pf.protocol, pf.authtype, pf.username, pf.password);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    if (status != NO_ERROR) {
        goto invalid;
    }
    CALL_ONREQUEST(pRI->pCI->requestNumber, &pf, sizeof(pf), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(pf.apn);
    memsetString(pf.protocol);
    memsetString(pf.username);
    memsetString(pf.password);
#endif

    free(pf.apn);
    free(pf.protocol);
    free(pf.username);
    free(pf.password);

#ifdef MEMSET_FREED
    memset(&pf, 0, sizeof(pf));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchNVReadItem(Parcel &p, RequestInfo *pRI) {
    RIL_NV_ReadItem nvri;
    int32_t  t;
    status_t status;

    memset(&nvri, 0, sizeof(nvri));

    status = p.readInt32(&t);
    nvri.itemID = (RIL_NV_Item) t;

    if (status != NO_ERROR) {
        goto invalid;
    }

    startRequest;
    appendPrintBuf("%snvri.itemID=%d, ", printBuf, nvri.itemID);
    closeRequest;

    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &nvri, sizeof(nvri), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&nvri, 0, sizeof(nvri));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchNVWriteItem(Parcel &p, RequestInfo *pRI) {
    RIL_NV_WriteItem nvwi;
    int32_t  t;
    status_t status;

    memset(&nvwi, 0, sizeof(nvwi));

    status = p.readInt32(&t);
    nvwi.itemID = (RIL_NV_Item) t;

    nvwi.value = strdupReadString(p);

    if (status != NO_ERROR || nvwi.value == NULL) {
        goto invalid;
    }

    startRequest;
    appendPrintBuf("%snvwi.itemID=%d, value=%s, ", printBuf, nvwi.itemID,
            nvwi.value);
    closeRequest;

    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &nvwi, sizeof(nvwi), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(nvwi.value);
#endif

    free(nvwi.value);

#ifdef MEMSET_FREED
    memset(&nvwi, 0, sizeof(nvwi));
#endif

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}


static void dispatchUiccSubscripton(Parcel &p, RequestInfo *pRI) {
    RIL_SelectUiccSub uicc_sub;
    status_t status;
    int32_t  t;
    memset(&uicc_sub, 0, sizeof(uicc_sub));

    status = p.readInt32(&t);
    if (status != NO_ERROR) {
        goto invalid;
    }
    uicc_sub.slot = (int) t;

    status = p.readInt32(&t);
    if (status != NO_ERROR) {
        goto invalid;
    }
    uicc_sub.app_index = (int) t;

    status = p.readInt32(&t);
    if (status != NO_ERROR) {
        goto invalid;
    }
    uicc_sub.sub_type = (RIL_SubscriptionType) t;

    status = p.readInt32(&t);
    if (status != NO_ERROR) {
        goto invalid;
    }
    uicc_sub.act_status = (RIL_UiccSubActStatus) t;

    startRequest;
    appendPrintBuf("slot=%d, app_index=%d, act_status = %d", uicc_sub.slot, uicc_sub.app_index,
            uicc_sub.act_status);
    RLOGD("dispatchUiccSubscription, slot=%d, app_index=%d, act_status = %d", uicc_sub.slot,
            uicc_sub.app_index, uicc_sub.act_status);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber, &uicc_sub, sizeof(uicc_sub), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memset(&uicc_sub, 0, sizeof(uicc_sub));
#endif
    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchSimAuthentication(Parcel &p, RequestInfo *pRI)
{
    RIL_SimAuthentication pf;
    int32_t  t;
    status_t status;

    memset(&pf, 0, sizeof(pf));

    status = p.readInt32(&t);
    pf.authContext = (int) t;
    pf.authData = strdupReadString(p);
    pf.aid = strdupReadString(p);

    startRequest;
    appendPrintBuf("authContext=%s, authData=%s, aid=%s", pf.authContext, pf.authData, pf.aid);
    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    if (status != NO_ERROR) {
        goto invalid;
    }
    CALL_ONREQUEST(pRI->pCI->requestNumber, &pf, sizeof(pf), pRI, pRI->socket_id);

#ifdef MEMSET_FREED
    memsetString(pf.authData);
    memsetString(pf.aid);
#endif

    free(pf.authData);
    free(pf.aid);

#ifdef MEMSET_FREED
    memset(&pf, 0, sizeof(pf));
#endif

    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchDataProfile(Parcel &p, RequestInfo *pRI) {
    int32_t t;
    status_t status;
    int32_t num;

    status = p.readInt32(&num);
    if (status != NO_ERROR) {
        goto invalid;
    }

    {
        RIL_DataProfileInfo dataProfiles[num];
        RIL_DataProfileInfo *dataProfilePtrs[num];

        startRequest;
        for (int i = 0 ; i < num ; i++ ) {
            dataProfilePtrs[i] = &dataProfiles[i];

            status = p.readInt32(&t);
            dataProfiles[i].profileId = (int) t;

            dataProfiles[i].apn = strdupReadString(p);
            dataProfiles[i].protocol = strdupReadString(p);
            status = p.readInt32(&t);
            dataProfiles[i].authType = (int) t;

            dataProfiles[i].user = strdupReadString(p);
            dataProfiles[i].password = strdupReadString(p);

            status = p.readInt32(&t);
            dataProfiles[i].type = (int) t;

            status = p.readInt32(&t);
            dataProfiles[i].maxConnsTime = (int) t;
            status = p.readInt32(&t);
            dataProfiles[i].maxConns = (int) t;
            status = p.readInt32(&t);
            dataProfiles[i].waitTime = (int) t;

            status = p.readInt32(&t);
            dataProfiles[i].enabled = (int) t;

            appendPrintBuf("%s [%d: profileId=%d, apn =%s, protocol =%s, authType =%d, \
                  user =%s, password =%s, type =%d, maxConnsTime =%d, maxConns =%d, \
                  waitTime =%d, enabled =%d]", printBuf, i, dataProfiles[i].profileId,
                  dataProfiles[i].apn, dataProfiles[i].protocol, dataProfiles[i].authType,
                  dataProfiles[i].user, dataProfiles[i].password, dataProfiles[i].type,
                  dataProfiles[i].maxConnsTime, dataProfiles[i].maxConns,
                  dataProfiles[i].waitTime, dataProfiles[i].enabled);
        }
        closeRequest;
        printRequest(pRI->token, pRI->pCI->requestNumber);

        if (status != NO_ERROR) {
            goto invalid;
        }
        CALL_ONREQUEST(pRI->pCI->requestNumber,
                              dataProfilePtrs,
                              num * sizeof(RIL_DataProfileInfo *),
                              pRI, pRI->socket_id);

#ifdef MEMSET_FREED
        memset(dataProfiles, 0, num * sizeof(RIL_DataProfileInfo));
        memset(dataProfilePtrs, 0, num * sizeof(RIL_DataProfileInfo *));
#endif
    }

    return;

invalid:
    invalidCommandBlock(pRI);
    return;
}

static void dispatchRadioCapability(Parcel &p, RequestInfo *pRI){
    RIL_RadioCapability rc;
    int32_t t;
    status_t status;

    memset (&rc, 0, sizeof(RIL_RadioCapability));

    status = p.readInt32(&t);
    rc.version = (int)t;
    if (status != NO_ERROR) {
        goto invalid;
    }

    status = p.readInt32(&t);
    rc.session= (int)t;
    if (status != NO_ERROR) {
        goto invalid;
    }

    status = p.readInt32(&t);
    rc.phase= (int)t;
    if (status != NO_ERROR) {
        goto invalid;
    }

    status = p.readInt32(&t);
    rc.rat = (int)t;
    if (status != NO_ERROR) {
        goto invalid;
    }

    status = readStringFromParcelInplace(p, rc.logicalModemUuid, sizeof(rc.logicalModemUuid));
    if (status != NO_ERROR) {
        goto invalid;
    }

    status = p.readInt32(&t);
    rc.status = (int)t;

    if (status != NO_ERROR) {
        goto invalid;
    }

    startRequest;
    appendPrintBuf("%s [version:%d, session:%d, phase:%d, rat:%d, \
            logicalModemUuid:%s, status:%d", printBuf, rc.version, rc.session
            rc.phase, rc.rat, rc.logicalModemUuid, rc.session);

    closeRequest;
    printRequest(pRI->token, pRI->pCI->requestNumber);

    CALL_ONREQUEST(pRI->pCI->requestNumber,
                &rc,
                sizeof(RIL_RadioCapability),
                pRI, pRI->socket_id);
    return;
invalid:
    invalidCommandBlock(pRI);
    return;
}

static int
blockingWrite(int fd, const void *buffer, size_t len) {
    size_t writeOffset = 0;
    const uint8_t *toWrite;

    toWrite = (const uint8_t *)buffer;

    while (writeOffset < len) {
        ssize_t written;
        do {
            written = write (fd, toWrite + writeOffset,
                                len - writeOffset);
        } while (written < 0 && ((errno == EINTR) || (errno == EAGAIN)));

        if (written >= 0) {
            writeOffset += written;
        } else {   // written < 0
            RLOGE ("RIL Response: unexpected error on write errno:%d", errno);
            close(fd);
            return -1;
        }
    }

    return 0;
}

static int
sendResponseRaw (const void *data, size_t dataSize, RIL_SOCKET_ID socket_id) {
    int fd = s_ril_param_socket.fdCommand;
    int ret;
    uint32_t header;
    pthread_mutex_t * writeMutexHook = &s_writeMutex;

    RLOGE("Send Response to %s", rilSocketIdToString(socket_id));

#if (SIM_COUNT >= 2)
    if (socket_id == RIL_SOCKET_2) {
        fd = s_ril_param_socket2.fdCommand;
        writeMutexHook = &s_writeMutex_socket2;
    }
#if (SIM_COUNT >= 3)
    else if (socket_id == RIL_SOCKET_3) {
        fd = s_ril_param_socket3.fdCommand;
        writeMutexHook = &s_writeMutex_socket3;
    }
#endif
#if (SIM_COUNT >= 4)
    else if (socket_id == RIL_SOCKET_4) {
        fd = s_ril_param_socket4.fdCommand;
        writeMutexHook = &s_writeMutex_socket4;
    }
#endif
#endif
    if (fd < 0) {
        return -1;
    }

    if (dataSize > MAX_COMMAND_BYTES) {
        RLOGE("RIL: packet larger than %u (%u)",
                MAX_COMMAND_BYTES, (unsigned int )dataSize);

        return -1;
    }

    pthread_mutex_lock(writeMutexHook);

    header = htonl(dataSize);

    ret = blockingWrite(fd, (void *)&header, sizeof(header));

    if (ret < 0) {
        pthread_mutex_unlock(writeMutexHook);
        return ret;
    }

    ret = blockingWrite(fd, data, dataSize);

    if (ret < 0) {
        pthread_mutex_unlock(writeMutexHook);
        return ret;
    }

    pthread_mutex_unlock(writeMutexHook);

    return 0;
}

static int
sendResponse (Parcel &p, RIL_SOCKET_ID socket_id) {
    printResponse;
    return sendResponseRaw(p.data(), p.dataSize(), socket_id);
}