diff options
Diffstat (limited to 'datapath-windows/ovsext/Datapath.c')
| -rw-r--r-- | datapath-windows/ovsext/Datapath.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/datapath-windows/ovsext/Datapath.c b/datapath-windows/ovsext/Datapath.c index 1e166041d..b3dbd7164 100644 --- a/datapath-windows/ovsext/Datapath.c +++ b/datapath-windows/ovsext/Datapath.c @@ -1020,10 +1020,24 @@ InvokeNetlinkCmdHandler(POVS_USER_PARAMS_CONTEXT usrParamsCtx, if (status != STATUS_SUCCESS && status != STATUS_PENDING) { if (usrParamsCtx->devOp != OVS_WRITE_DEV_OP && *replyLen == 0) { NL_ERROR nlError = NlMapStatusToNlErr(status); - POVS_MESSAGE msgIn = (POVS_MESSAGE)usrParamsCtx->inputBuffer; + OVS_MESSAGE msgInTmp = { 0 }; + POVS_MESSAGE msgIn = NULL; POVS_MESSAGE_ERROR msgError = (POVS_MESSAGE_ERROR) usrParamsCtx->outputBuffer; + if (usrParamsCtx->ovsMsg->genlMsg.cmd == OVS_CTRL_CMD_EVENT_NOTIFY || + usrParamsCtx->ovsMsg->genlMsg.cmd == OVS_CTRL_CMD_READ_NOTIFY) { + /* There's no input buffer associated with such requests. */ + NL_BUFFER nlBuffer; + msgIn = &msgInTmp; + NlBufInit(&nlBuffer, (PCHAR)msgIn, sizeof *msgIn); + NlFillNlHdr(&nlBuffer, nlFamilyOps->id, 0, 0, + usrParamsCtx->ovsInstance->pid); + } else { + msgIn = (POVS_MESSAGE)usrParamsCtx->inputBuffer; + } + + ASSERT(msgIn); ASSERT(msgError); NlBuildErrorMsg(msgIn, msgError, nlError); *replyLen = msgError->nlMsg.nlmsgLen; |