112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
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/*
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File PnP.c
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Implementation of pnp enhancements of the interface between the IPX stack and
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the IPX user-mode router components software PnP enabled.
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Paul Mayfield, 11/5/97.
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*/
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#include "ipxdefs.h"
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#include "pnp.h"
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// Globals from other files
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extern WCHAR ISN_IPX_NAME[];
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extern ULONG InternalNetworkNumber;
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extern UCHAR INTERNAL_NODE_ADDRESS[6];
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extern IO_STATUS_BLOCK IoctlStatus;
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extern HANDLE IpxDriverHandle;
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extern LONG AdapterChangeApcPending;
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extern LIST_ENTRY PortListHead;
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extern PCONFIG_PORT IpxWanPort;
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extern CRITICAL_SECTION ConfigInfoLock;
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extern ULONG NumAdapters;
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// [pmay] The global trace id.
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extern DWORD g_dwTraceId;
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DWORD IpxPostIntNetNumMessage(PCONFIG_PORT pPort, DWORD dwNewNetNum);
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// Queries the ipx stack for the current ipx internal net number. This code was
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// stolen from OpenAdapterConfigPort.
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DWORD PnpGetCurrentInternalNetNum(LPDWORD lpdwNetNum) {
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PISN_ACTION_GET_DETAILS details;
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PNWLINK_ACTION action;
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CHAR IoctlBuffer[sizeof (NWLINK_ACTION)
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+sizeof (ISN_ACTION_GET_DETAILS)];
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NTSTATUS status;
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IO_STATUS_BLOCK IoStatus;
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//TracePrintf(g_dwTraceId, "Entered PnpGetCurrentInternalNetNum\n");
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// Prepare to send an ioctl to the stack to get the internal
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// net information along with the global adapter information
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action = (PNWLINK_ACTION)IoctlBuffer;
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action->Header.TransportId = ISN_ACTION_TRANSPORT_ID;
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action->OptionType = NWLINK_OPTION_CONTROL;
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action->BufferLength = sizeof(action->Option) + sizeof(ISN_ACTION_GET_DETAILS);
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action->Option = MIPX_CONFIG;
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details = (PISN_ACTION_GET_DETAILS)action->Data;
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// Nic id 0 will return internal net information and
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// total number of adapters
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details->NicId = 0;
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// Send the ioctl
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status = NtDeviceIoControlFile(
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IpxDriverHandle,
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NULL,
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NULL,
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NULL,
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&IoStatus,
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IOCTL_TDI_ACTION,
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NULL,
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0,
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action,
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sizeof(NWLINK_ACTION) + sizeof(ISN_ACTION_GET_DETAILS));
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// Wait for the ioctl to complete
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if (status==STATUS_PENDING) {
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status = NtWaitForSingleObject (IpxDriverHandle, FALSE, NULL);
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if (NT_SUCCESS (status))
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status = IoStatus.Status;
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}
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// Output the new net number
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//TracePrintf(g_dwTraceId, "PnpGetCurrentInternalNetNum: Stack has returned internal net num: %x\n",
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// details->NetworkNumber);
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// If the stack reports all the requested information without error,
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// update global variables with the information retrieved.
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if (NT_SUCCESS (status)) {
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NumAdapters = details->NicId;
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*lpdwNetNum = details->NetworkNumber;
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//TracePrintf(g_dwTraceId, "PnpGetCurrentInternalNetNum: Returning success\n");
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return NO_ERROR;
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}
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return ERROR_CAN_NOT_COMPLETE;
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}
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// Notifies all clients to adptif (rtrmgr, sap, rip) that the internal
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// network number has changed.
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DWORD PnpHandleInternalNetNumChange(DWORD dwNewNetNum) {
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PCONFIG_PORT pPort;
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PLIST_ENTRY cur;
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TracePrintf(g_dwTraceId, "PnpHandleInternalNetNumChange: Entered with number: %x", dwNewNetNum);
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// Signal each client (as in rtrmgr, sap, rip) to update
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// the internal network number.
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for (cur=PortListHead.Flink; cur != &PortListHead; cur = cur->Flink) {
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pPort = CONTAINING_RECORD (cur, CONFIG_PORT, link);
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IpxPostIntNetNumMessage(pPort, dwNewNetNum);
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}
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TracePrintf(g_dwTraceId, "\n");
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return NO_ERROR;
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}
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