[ovs-dev] [PATCH v4 03/11] datapath-windows: Add new NlFillOvsMsgForNfGenMsg method in Netlink.c

Nithin Raju nithin at vmware.com
Fri Jul 1 01:37:33 UTC 2016


Acked-by: Nithin Raju <nithin at vmware.com>

-----Original Message-----
From: dev <dev-bounces at openvswitch.org> on behalf of Sairam Venugopal
<vsairam at vmware.com>
Date: Wednesday, June 29, 2016 at 5:08 PM
To: "dev at openvswitch.org" <dev at openvswitch.org>
Subject: [ovs-dev] [PATCH v4 03/11] datapath-windows: Add
new	NlFillOvsMsgForNfGenMsg method in Netlink.c

>Create a new method to create and fill OvsMessage with NfGenMsg. This will
>be used for sending Netfilter based Netlink messages.
>
>Signed-off-by: Sairam Venugopal <vsairam at vmware.com>
>Acked-by: Paul-Daniel Boca <pboca at cloudbasesolutions.com>
>Acked-by: Nithin Raju <nithin at vmware.com>
>---
> datapath-windows/ovsext/Netlink/Netlink.c | 39
>+++++++++++++++++++++++++++++++
> datapath-windows/ovsext/Netlink/Netlink.h |  4 ++++
> 2 files changed, 43 insertions(+)
>
>diff --git a/datapath-windows/ovsext/Netlink/Netlink.c
>b/datapath-windows/ovsext/Netlink/Netlink.c
>index ccf9ec1..2432205 100644
>--- a/datapath-windows/ovsext/Netlink/Netlink.c
>+++ b/datapath-windows/ovsext/Netlink/Netlink.c
>@@ -73,6 +73,45 @@ NlFillOvsMsg(PNL_BUFFER nlBuf, UINT16 nlmsgType,
> 
> /*
>  * 
>--------------------------------------------------------------------------
>-
>+ * 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
>+NlFillOvsMsgForNfGenMsg(PNL_BUFFER nlBuf, UINT16 nlmsgType,
>+                        UINT16 nlmsgFlags, UINT32 nlmsgSeq,
>+                        UINT32 nlmsgPid, UINT8 nfgenFamily,
>+                        UINT8 nfGenVersion, 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.nfGenMsg.nfgenFamily = nfgenFamily;
>+    msgOut.nfGenMsg.version = nfGenVersion;
>+    msgOut.nfGenMsg.resId = 0;
>+
>+    msgOut.ovsHdr.dp_ifindex = dpNo;
>+
>+    writeOk = NlMsgPutTail(nlBuf, (PCHAR)(&msgOut),
>+                           sizeof (struct _OVS_MESSAGE));
>+
>+    return writeOk;
>+}
>+
>+/*
>+ * 
>--------------------------------------------------------------------------
>-
>  * Prepare NL_MSG_HDR only. This API appends a NL_MSG_HDR to the tail of
>  * input NlBuf.
>  * 
>--------------------------------------------------------------------------
>-
>diff --git a/datapath-windows/ovsext/Netlink/Netlink.h
>b/datapath-windows/ovsext/Netlink/Netlink.h
>index 5261b9e..363f575 100644
>--- a/datapath-windows/ovsext/Netlink/Netlink.h
>+++ b/datapath-windows/ovsext/Netlink/Netlink.h
>@@ -95,6 +95,10 @@ BOOLEAN NlFillOvsMsg(PNL_BUFFER nlBuf,
>                      UINT16 nlmsgType, UINT16 nlmsgFlags,
>                      UINT32 nlmsgSeq, UINT32 nlmsgPid,
>                      UINT8 genlCmd, UINT8 genlVer, UINT32 dpNo);
>+BOOLEAN NlFillOvsMsgForNfGenMsg(PNL_BUFFER nlBuf, UINT16 nlmsgType,
>+                                UINT16 nlmsgFlags, UINT32 nlmsgSeq,
>+                                UINT32 nlmsgPid, UINT8 nfgenFamily,
>+                                UINT8 nfGenVersion, UINT32 dpNo);
> BOOLEAN NlFillNlHdr(PNL_BUFFER nlBuf,
>                     UINT16 nlmsgType, UINT16 nlmsgFlags,
>                     UINT32 nlmsgSeq, UINT32 nlmsgPid);
>-- 
>2.5.0.windows.1
>
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