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imb: Refactoring: remove duplicate code

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Merge GetAsyncImbpMessage() and GetAsyncImbpMessage_Ex() functions
as they share 95% of the code. Make the former call the latter().

Signed-off-by: Alexander Amelkin <alexander@amelkin.msk.ru>
This commit is contained in:
Alexander Amelkin 2018-08-20 13:37:35 +03:00
parent 9ecfb762bd
commit f3ef88724f
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GPG Key ID: E893587B5B74178D
1 changed files with 23 additions and 93 deletions
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106
src/plugins/imb/imbapi.c
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@ -979,82 +979,12 @@ ACCESN_STATUS
GetAsyncImbpMessage (ImbPacket *msgPtr, DWORD *msgLen, DWORD timeOut,
ImbAsyncSeq *seqNo, DWORD channelNumber)
{
BOOL status;
BYTE responseData[MAX_ASYNC_RESP_SIZE];
BYTE lun;
ImbAsyncResponse *resp = (ImbAsyncResponse *)responseData;
DWORD respLength = sizeof(responseData);
ImbAsyncRequest req;
while (1) {
if ((msgPtr == NULL) || (msgLen == NULL) || ( seqNo == NULL)) {
return ACCESN_ERROR;
}
/* convert to uSec units */
req.timeOut = timeOut * 1000;
req.lastSeq = *seqNo;
status = DeviceIoControl(hDevice, IOCTL_IMB_GET_ASYNC_MSG, &req,
sizeof(req), &responseData,
sizeof(responseData), &respLength, NULL);
lprintf(LOG_DEBUG, "%s: DeviceIoControl status = %d",
__FUNCTION__, status);
if (status != TRUE) {
DWORD error = GetLastError();
/* handle "msg not available" specially. it is different
* from a random old error.
/* This function does exactly the same as GetAsuncImbpMessage_Ex(),
* but doesn't return session handle and privilege
*/
switch (error) {
case IMB_MSG_NOT_AVAILABLE:
return ACCESN_END_OF_DATA;
break;
default:
return ACCESN_ERROR;
break;
}
} else if (respLength < MIN_ASYNC_RESP_SIZE) {
return ACCESN_ERROR;
}
respLength -= MIN_ASYNC_RESP_SIZE;
if (*msgLen < respLength) {
return ACCESN_ERROR;
}
/* same code as in NT section */
if (IpmiVersion == IPMI_09_VERSION) {
switch (channelNumber) {
case IPMB_CHANNEL:
lun = IPMB_LUN;
break;
case EMP_CHANNEL:
lun = EMP_LUN;
break;
default:
lun = RESERVED_LUN;
break;
}
if ((lun == RESERVED_LUN)
|| (lun != ((((ImbPacket *)(resp->data))->nfLn) & 0x3 ))) {
*seqNo = resp->thisSeq;
continue;
}
memcpy(msgPtr, resp->data, respLength);
*msgLen = respLength;
} else {
/* it is version 1.0 or better */
if (resp->data[0] != (BYTE)channelNumber) {
*seqNo = resp->thisSeq;
continue;
}
memcpy(msgPtr, &(resp->data[1]), (respLength - 1));
*msgLen = respLength - 1;
}
/* give the caller his sequence number */
*seqNo = resp->thisSeq;
return ACCESN_OK;
}
return GetAsyncImbpMessage_Ex(msgPtr, msgLen, timeOut,
seqNo, channelNumber,
NULL, NULL);
}
/* GetAsyncImbpMessage_Ex - gets the next available async message with a message
@ -1110,12 +1040,12 @@ GetAsyncImbpMessage_Ex(ImbPacket *msgPtr, DWORD *msgLen, DWORD timeOut,
return ACCESN_ERROR;
break;
}
}
if (respLength < MIN_ASYNC_RESP_SIZE) {
} else if (respLength < MIN_ASYNC_RESP_SIZE) {
return ACCESN_ERROR;
}
respLength -= MIN_ASYNC_RESP_SIZE;
if (*msgLen < respLength) {
return ACCESN_ERROR;
}
@ -1143,26 +1073,26 @@ GetAsyncImbpMessage_Ex(ImbPacket *msgPtr, DWORD *msgLen, DWORD timeOut,
memcpy(msgPtr, resp->data, respLength);
*msgLen = respLength;
} else {
if ((sessionHandle ==NULL) || (privilege ==NULL)) {
return ACCESN_ERROR;
}
/* With the new IPMI version the get message command
* returns the channel number along with the
* privileges.The 1st 4 bits of the second byte of the
* response data for get message command represent the
* channel number & the last 4 bits are the privileges.
*/
*privilege = (resp->data[0] & 0xf0)>> 4;
/* it is version 1.0 or better */
if ((resp->data[0] & 0x0f) != (BYTE)channelNumber) {
*seqNo = resp->thisSeq;
continue;
}
/* With the new IPMI version the get message command
* returns the channel number along with the
* privileges. The 1st 4 bits of the second byte of the
* response data for get message command represent the
* channel number & the last 4 bits are the privileges.
*/
if (sessionHandle && privilege) {
*privilege = (resp->data[0] & 0xf0) >> 4;
/* The get message command according to IPMI 1.5 spec
* now even returns the session handle.This is required
* now even returns the session handle. This is required
* to be captured as it is required as request data for
* send message command.
*/
*sessionHandle = resp->data[1];
}
memcpy(msgPtr, &(resp->data[2]), (respLength - 1));
*msgLen = respLength - 1;
}