Added NlFillOvsMsg API in Netlink.c This API will be used to populate netlink message headers.
Signed-off-by: Ankur Sharma <[email protected]> Acked-by: Alin Gabriel Serdean <[email protected]> Acked-by: Eitan Eliahu <[email protected]> Acked-by: Nithin Raju <[email protected]> Acked-by: Samuel Ghinet <[email protected]> Tested-by: Ankur Sharma <[email protected]> --- datapath-windows/ovsext/Netlink/Netlink.c | 43 +++++++++++++++++++++++++++++++ datapath-windows/ovsext/Netlink/Netlink.h | 5 ++++ 2 files changed, 48 insertions(+) diff --git a/datapath-windows/ovsext/Netlink/Netlink.c b/datapath-windows/ovsext/Netlink/Netlink.c index c286c2f..cd21ae4 100644 --- a/datapath-windows/ovsext/Netlink/Netlink.c +++ b/datapath-windows/ovsext/Netlink/Netlink.c @@ -34,6 +34,49 @@ /* * --------------------------------------------------------------------------- + * Prepare netlink message headers. Attributes should be added by caller. + * --------------------------------------------------------------------------- + */ +NTSTATUS +NlFillOvsMsg(PNL_BUFFER nlBuf, UINT16 nlmsgType, + UINT16 nlmsgFlags, UINT32 nlmsgSeq, + UINT32 nlmsgPid, UINT8 genlCmd, + UINT8 genlVer, UINT32 dpNo) +{ + BOOLEAN writeOk; + PNL_MSG_HDR nlMsg; + OVS_MESSAGE msgOut; + UINT32 offset = NlBufSize(nlBuf); + + ASSERT(NlBufAt(nlBuf, offset, sizeof(struct _OVS_MESSAGE)) != 0); + + msgOut.nlMsg.nlmsgType = nlmsgType; + msgOut.nlMsg.nlmsgFlags = nlmsgFlags; + msgOut.nlMsg.nlmsgSeq = nlmsgSeq; + msgOut.nlMsg.nlmsgPid = nlmsgPid; + + 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)); + + if (!writeOk) { + goto done; + } + + nlMsg = (PNL_MSG_HDR)NlBufAt(nlBuf, offset, sizeof(struct _NL_MSG_HDR)); + nlMsg->nlmsgLen = sizeof(struct _OVS_MESSAGE); + +done: + return writeOk ? STATUS_SUCCESS : STATUS_INVALID_BUFFER_SIZE; +} + +/* + * --------------------------------------------------------------------------- * Adds Netlink Header to the NL_BUF. * --------------------------------------------------------------------------- */ diff --git a/datapath-windows/ovsext/Netlink/Netlink.h b/datapath-windows/ovsext/Netlink/Netlink.h index b036723..9f7cc70 100644 --- a/datapath-windows/ovsext/Netlink/Netlink.h +++ b/datapath-windows/ovsext/Netlink/Netlink.h @@ -78,6 +78,11 @@ typedef struct _NL_POLICY #define NL_ATTR_GET_AS(NLA, TYPE) \ (*(TYPE*) NlAttrGetUnspec(nla, sizeof(TYPE))) +NTSTATUS NlFillOvsMsg(PNL_BUFFER nlBuf, + UINT16 nlmsgType, UINT16 nlmsgFlags, + UINT32 nlmsgSeq, UINT32 nlmsgPid, + UINT8 genlCmd, UINT8 genlVer, UINT32 dpNo); + /* Netlink message accessing the payload */ PVOID NlMsgAt(const PNL_MSG_HDR nlh, UINT32 offset); UINT32 NlMsgSize(const PNL_MSG_HDR nlh); -- 1.9.1 _______________________________________________ dev mailing list [email protected] http://openvswitch.org/mailman/listinfo/dev
