417 lines
8.8 KiB
C
417 lines
8.8 KiB
C
/*++
|
|
|
|
Copyright (c) 1998 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
routing\netsh\if\ifmon.c
|
|
|
|
Abstract:
|
|
|
|
If Command dispatcher.
|
|
|
|
Revision History:
|
|
|
|
AmritanR
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
|
|
|
|
#define IFMON_GUID \
|
|
{ 0x705eca1, 0x7aac, 0x11d2, { 0x89, 0xdc, 0x0, 0x60, 0x8, 0xb0, 0xe5, 0xb9 } }
|
|
|
|
GUID g_IfGuid = IFMON_GUID;
|
|
|
|
static const GUID g_NetshGuid = NETSH_ROOT_GUID;
|
|
|
|
#define IF_HELPER_VERSION 1
|
|
|
|
|
|
//
|
|
// The monitor's commands are broken into 2 sets
|
|
// - The top level commands are those which deal with the monitor
|
|
// itself (meta commands) and others which take 0 arguments
|
|
// - The rest of the commands are split into "command groups"
|
|
// i.e, commands grouped by the VERB where the VERB is ADD, DELETE,
|
|
// GET or SET. This is not for any technical reason - only for
|
|
// staying with the semantics used in other monitors and helpers
|
|
//
|
|
// A command is described using a CMD_ENTRY structure. It requires the
|
|
// command token, the handler, a short help message token and an extended
|
|
// help message token. To make it easier to create we use the
|
|
// CREATE_CMD_ENTRY macro. This, however puts restrictions on how the tokens
|
|
// are named.
|
|
//
|
|
// The command groups are simply arrays of the CMD_ENTRY structure. The
|
|
// top level commands are also grouped in a similar array.
|
|
//
|
|
// The info about a complete command group is put in a CMD_GROUP_ENTRY
|
|
// structure, all of which are put in an array.
|
|
//
|
|
|
|
|
|
//
|
|
// NOTE: Since we have only one entry per group, currently, we really didnt
|
|
// need command groups. This is done for later extensibility.
|
|
// To add a command entry to a group, simply add the command to the appropriate
|
|
// array
|
|
// To add a command group - create and array and add its info to the
|
|
// command group array
|
|
//
|
|
|
|
CMD_ENTRY g_IfAddCmdTable[] =
|
|
{
|
|
CREATE_CMD_ENTRY(IF_ADD_IF, HandleIfAddIf),
|
|
};
|
|
|
|
CMD_ENTRY g_IfDelCmdTable[] =
|
|
{
|
|
CREATE_CMD_ENTRY(IF_DEL_IF, HandleIfDelIf),
|
|
};
|
|
|
|
CMD_ENTRY g_IfSetCmdTable[] =
|
|
{
|
|
CREATE_CMD_ENTRY(IF_SET_INTERFACE, HandleIfSet),
|
|
CREATE_CMD_ENTRY(IF_SET_CREDENTIALS, HandleIfSetCredentials),
|
|
};
|
|
|
|
CMD_ENTRY g_IfShowCmdTable[] =
|
|
{
|
|
CREATE_CMD_ENTRY(IF_SHOW_IF, HandleIfShowIf),
|
|
CREATE_CMD_ENTRY(IF_SHOW_CREDENTIALS, HandleIfShowCredentials),
|
|
};
|
|
|
|
CMD_ENTRY g_IfResetCmdTable[] =
|
|
{
|
|
CREATE_CMD_ENTRY(IF_RESET_ALL, HandleIfResetAll),
|
|
};
|
|
|
|
CMD_GROUP_ENTRY g_IfCmdGroups[] =
|
|
{
|
|
CREATE_CMD_GROUP_ENTRY(GROUP_ADD, g_IfAddCmdTable),
|
|
CREATE_CMD_GROUP_ENTRY(GROUP_DELETE, g_IfDelCmdTable),
|
|
CREATE_CMD_GROUP_ENTRY(GROUP_SHOW, g_IfShowCmdTable),
|
|
CREATE_CMD_GROUP_ENTRY(GROUP_SET, g_IfSetCmdTable),
|
|
CREATE_CMD_GROUP_ENTRY(GROUP_RESET, g_IfResetCmdTable),
|
|
};
|
|
|
|
ULONG g_ulNumGroups = sizeof(g_IfCmdGroups)/sizeof(CMD_GROUP_ENTRY);
|
|
|
|
HANDLE g_hModule;
|
|
HANDLE g_hMprConfig = NULL;
|
|
HANDLE g_hMprAdmin = NULL;
|
|
HANDLE g_hMIBServer = NULL;
|
|
BOOL g_bCommit;
|
|
PWCHAR g_pwszRouter = NULL;
|
|
|
|
DWORD ParentVersion;
|
|
BOOL g_bIfDirty = FALSE;
|
|
|
|
ULONG g_ulInitCount;
|
|
|
|
NS_CONTEXT_CONNECT_FN IfConnect;
|
|
|
|
DWORD
|
|
WINAPI
|
|
IfCommit(
|
|
IN DWORD dwAction
|
|
)
|
|
{
|
|
BOOL bCommit, bFlush = FALSE;
|
|
|
|
switch(dwAction)
|
|
{
|
|
case NETSH_COMMIT:
|
|
{
|
|
if(g_bCommit)
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
|
|
g_bCommit = TRUE;
|
|
|
|
break;
|
|
}
|
|
|
|
case NETSH_UNCOMMIT:
|
|
{
|
|
g_bCommit = FALSE;
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
case NETSH_SAVE:
|
|
{
|
|
if(g_bCommit)
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case NETSH_FLUSH:
|
|
{
|
|
//
|
|
// Action is a flush. If current state is commit, then
|
|
// nothing to be done.
|
|
//
|
|
|
|
if(g_bCommit)
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
|
|
bFlush = TRUE;
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Switched to commit mode. So set all valid info in the
|
|
// strutures. Free memory and invalidate the info.
|
|
//
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
BOOL
|
|
WINAPI
|
|
IfDllEntry(
|
|
HINSTANCE hInstDll,
|
|
DWORD fdwReason,
|
|
LPVOID pReserved
|
|
)
|
|
{
|
|
switch (fdwReason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
{
|
|
g_hModule = hInstDll;
|
|
|
|
DisableThreadLibraryCalls(hInstDll);
|
|
|
|
break;
|
|
}
|
|
case DLL_PROCESS_DETACH:
|
|
{
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
DWORD
|
|
WINAPI
|
|
IfStartHelper(
|
|
IN CONST GUID *pguidParent,
|
|
IN DWORD dwVersion
|
|
)
|
|
{
|
|
DWORD dwErr;
|
|
NS_CONTEXT_ATTRIBUTES attMyAttributes;
|
|
|
|
ParentVersion = dwVersion;
|
|
|
|
ZeroMemory(&attMyAttributes, sizeof(attMyAttributes));
|
|
|
|
attMyAttributes.pwszContext = L"interface";
|
|
attMyAttributes.guidHelper = g_IfGuid;
|
|
attMyAttributes.dwVersion = 1;
|
|
attMyAttributes.dwFlags = CMD_FLAG_PRIORITY;
|
|
attMyAttributes.ulPriority = 10; // very low so gets dumped first
|
|
attMyAttributes.ulNumTopCmds = 0;
|
|
attMyAttributes.pTopCmds = NULL;
|
|
attMyAttributes.ulNumGroups = g_ulNumGroups;
|
|
attMyAttributes.pCmdGroups = (CMD_GROUP_ENTRY (*)[])&g_IfCmdGroups;
|
|
attMyAttributes.pfnCommitFn = IfCommit;
|
|
attMyAttributes.pfnDumpFn = IfDump;
|
|
attMyAttributes.pfnConnectFn= IfConnect;
|
|
|
|
dwErr = RegisterContext( &attMyAttributes );
|
|
|
|
return dwErr;
|
|
}
|
|
|
|
DWORD WINAPI
|
|
IfConnect(
|
|
IN LPCWSTR pwszRouter
|
|
)
|
|
{
|
|
// If context info is dirty, reregister it
|
|
if (g_bIfDirty)
|
|
{
|
|
IfStartHelper(NULL, ParentVersion);
|
|
}
|
|
|
|
return ConnectToRouter(pwszRouter);
|
|
}
|
|
|
|
|
|
DWORD WINAPI
|
|
InitHelperDll(
|
|
IN DWORD dwNetshVersion,
|
|
OUT PVOID pReserved
|
|
)
|
|
{
|
|
DWORD dwErr;
|
|
NS_HELPER_ATTRIBUTES attMyAttributes;
|
|
WSADATA wsa;
|
|
|
|
//
|
|
// See if this is the first time we are being called
|
|
//
|
|
|
|
if(InterlockedIncrement(&g_ulInitCount) != 1)
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
|
|
dwErr = WSAStartup(MAKEWORD(2,0), &wsa);
|
|
|
|
g_bCommit = TRUE;
|
|
|
|
// Register helpers
|
|
|
|
ZeroMemory( &attMyAttributes, sizeof(attMyAttributes) );
|
|
attMyAttributes.guidHelper = g_IfGuid;
|
|
attMyAttributes.dwVersion = IF_HELPER_VERSION;
|
|
attMyAttributes.pfnStart = IfStartHelper;
|
|
attMyAttributes.pfnStop = NULL;
|
|
|
|
RegisterHelper( &g_NetshGuid, &attMyAttributes );
|
|
|
|
|
|
//
|
|
// Register any sub contexts implemented in this dll
|
|
//
|
|
|
|
dwErr = IfContextInstallSubContexts();
|
|
if (dwErr isnot NO_ERROR)
|
|
{
|
|
IfUnInit(0);
|
|
return dwErr;
|
|
}
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
DWORD
|
|
ConnectToRouter(
|
|
IN LPCWSTR pwszRouter
|
|
)
|
|
{
|
|
DWORD dwErr = NO_ERROR;
|
|
|
|
do
|
|
{
|
|
// Change the router name if needed
|
|
//
|
|
if ((g_pwszRouter != pwszRouter) &&
|
|
(!g_pwszRouter || !pwszRouter || lstrcmpi(g_pwszRouter,pwszRouter)))
|
|
{
|
|
if (g_hMprConfig)
|
|
{
|
|
MprConfigServerDisconnect(g_hMprConfig);
|
|
g_hMprConfig = NULL;
|
|
}
|
|
|
|
if (g_hMprAdmin)
|
|
{
|
|
MprAdminServerDisconnect(g_hMprAdmin);
|
|
g_hMprAdmin = NULL;
|
|
}
|
|
|
|
if (g_hMIBServer)
|
|
{
|
|
MprAdminMIBServerDisconnect(g_hMIBServer);
|
|
g_hMIBServer = NULL;
|
|
}
|
|
}
|
|
|
|
// Cleanup the old router name
|
|
//
|
|
if (g_pwszRouter)
|
|
{
|
|
IfutlFree(g_pwszRouter);
|
|
}
|
|
|
|
// Copy the new router name in
|
|
//
|
|
if (pwszRouter)
|
|
{
|
|
g_pwszRouter = IfutlStrDup(pwszRouter);
|
|
if (g_pwszRouter == NULL)
|
|
{
|
|
dwErr = ERROR_CONNECT_REMOTE_CONFIG;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
g_pwszRouter = NULL;
|
|
}
|
|
|
|
if (!g_hMprConfig)
|
|
{
|
|
//
|
|
// first time connecting to router config
|
|
//
|
|
|
|
dwErr = MprConfigServerConnect((LPWSTR)pwszRouter, &g_hMprConfig);
|
|
|
|
if (dwErr isnot NO_ERROR)
|
|
{
|
|
//
|
|
// cannot connect to router config.
|
|
//
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Check to see if router is running. If so, get the handles
|
|
//
|
|
|
|
if (MprAdminIsServiceRunning((LPWSTR)pwszRouter))
|
|
{
|
|
if(MprAdminServerConnect((LPWSTR)pwszRouter, &g_hMprAdmin) != NO_ERROR)
|
|
{
|
|
g_hMprAdmin = NULL;
|
|
}
|
|
}
|
|
|
|
} while (FALSE);
|
|
|
|
return dwErr;
|
|
}
|
|
|
|
DWORD
|
|
WINAPI
|
|
IfUnInit(
|
|
IN DWORD dwReserved
|
|
)
|
|
{
|
|
if(InterlockedDecrement(&g_ulInitCount) isnot 0)
|
|
{
|
|
return NO_ERROR;
|
|
}
|
|
|
|
return NO_ERROR;
|
|
}
|