/*
* ---------------------------------------------------------------------------
* Prepare netlink message headers. This API adds
* NL_MSG_HDR + GENL_HDR + OVS_HDR to the tail of input NLBuf.
* Attributes should be added by caller.
* ---------------------------------------------------------------------------
*/
BOOLEAN
NlFillOvsMsg(PNL_BUFFER nlBuf, UINT16 nlmsgType,
UINT16 nlmsgFlags, UINT32 nlmsgSeq,
UINT32 nlmsgPid, UINT8 genlCmd,
UINT8 genlVer, UINT32 dpNo)
{
BOOLEAN writeOk;
OVS_MESSAGE msgOut;
UINT32 offset = NlBufSize(nlBuf);
/* To keep compiler happy for release build. */
UNREFERENCED_PARAMETER(offset);
ASSERT(NlBufAt(nlBuf, offset, 0) != 0);
msgOut.nlMsg.nlmsgType = nlmsgType;
msgOut.nlMsg.nlmsgFlags = nlmsgFlags;
msgOut.nlMsg.nlmsgSeq = nlmsgSeq;
msgOut.nlMsg.nlmsgPid = nlmsgPid;
msgOut.nlMsg.nlmsgLen = sizeof(struct _OVS_MESSAGE);
msgOut.genlMsg.cmd = genlCmd;
msgOut.genlMsg.version = genlVer;
msgOut.genlMsg.reserved = 0;
msgOut.ovsHdr.dp_ifindex = dpNo;
writeOk = NlMsgPutTail(nlBuf, (PCHAR)(&msgOut),
sizeof (struct _OVS_MESSAGE));
return writeOk;
}
/*
* --------------------------------------------------------------------------
* Appends a nested Netlink attribute of the given 'type', with the 'size'
* bytes of content starting at 'data', to 'msg'.
* Refer nl_msg_put_nested for more details.
* --------------------------------------------------------------------------
*/
VOID
NlMsgPutNested(PNL_BUFFER buf, UINT16 type,
const PVOID data, UINT32 size)
{
UINT32 offset = NlMsgStartNested(buf, type);
BOOLEAN ret = FALSE;
ASSERT(offset);
ret = NlMsgPutTail(buf, data, size);
ASSERT(ret);
NlMsgEndNested(buf, offset);
}
/*
* ---------------------------------------------------------------------------
* Prepare NL_MSG_HDR only. This API appends a NL_MSG_HDR to the tail of
* input NlBuf.
* ---------------------------------------------------------------------------
*/
BOOLEAN
NlFillNlHdr(PNL_BUFFER nlBuf, UINT16 nlmsgType,
UINT16 nlmsgFlags, UINT32 nlmsgSeq,
UINT32 nlmsgPid)
{
BOOLEAN writeOk;
NL_MSG_HDR msgOut;
UINT32 offset = NlBufSize(nlBuf);
/* To keep compiler happy for release build. */
UNREFERENCED_PARAMETER(offset);
ASSERT(NlBufAt(nlBuf, offset, 0) != 0);
msgOut.nlmsgType = nlmsgType;
msgOut.nlmsgFlags = nlmsgFlags;
msgOut.nlmsgSeq = nlmsgSeq;
msgOut.nlmsgPid = nlmsgPid;
msgOut.nlmsgLen = sizeof(struct _NL_MSG_HDR);
writeOk = NlMsgPutTail(nlBuf, (PCHAR)(&msgOut),
sizeof(struct _NL_MSG_HDR));
return writeOk;
}