diff options
Diffstat (limited to 'private/net/svcdlls/srvsvc/server/cdev.c')
| -rw-r--r-- | private/net/svcdlls/srvsvc/server/cdev.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/private/net/svcdlls/srvsvc/server/cdev.c b/private/net/svcdlls/srvsvc/server/cdev.c new file mode 100644 index 000000000..adacfb2c1 --- /dev/null +++ b/private/net/svcdlls/srvsvc/server/cdev.c @@ -0,0 +1,341 @@ +/*++ + +Copyright (c) 1991-1992 Microsoft Corporation + +Module Name: + + CDev.c + +Abstract: + + This module contains support for the Character Device catagory of + APIs for the NT server service. + +Author: + + David Treadwell (davidtr) 20-Dec-1991 + +Revision History: + +--*/ + +#include "srvsvcp.h" + + +NET_API_STATUS NET_API_FUNCTION +NetrCharDevControl ( + IN LPTSTR ServerName, + IN LPTSTR DeviceName, + IN DWORD OpCode + ) + +/*++ + +Routine Description: + + This routine communicates with the server FSP to implement the + NetCharDevControl function. + +Arguments: + + None. + +Return Value: + + NET_API_STATUS - NO_ERROR or reason for failure. + +--*/ + +{ +#ifdef SRV_COMM_DEVICES + NET_API_STATUS error; + PSERVER_REQUEST_PACKET srp; + + ServerName; + + // + // Make sure that the caller has the access necessary for this + // operation. + // + + error = SsCheckAccess( + &SsCharDevSecurityObject, + SRVSVC_CHARDEV_INFO_SET + ); + + if ( error != NO_ERROR ) { + return ERROR_ACCESS_DENIED; + } + + // + // Make sure that the opcode is legitimate. Only CHARDEV_CLOSE, used + // to close the current open of the device, is possible. + // + + if ( OpCode != CHARDEV_CLOSE ) { + return ERROR_INVALID_PARAMETER; + } + + // + // Set up the request packet. + // + + srp = SsAllocateSrp( ); + if ( srp == NULL ) { + return ERROR_NOT_ENOUGH_MEMORY; + } + +#ifdef UNICODE + RtlInitUnicodeString( &srp->Name1, DeviceName ); +#else + { + OEM_STRING ansiString; + NTSTATUS status; + NetpInitOemString( &ansiString, DeviceName ); + status = RtlOemStringToUnicodeString( &srp->Name1, &ansiString, TRUE ); + SS_ASSERT( NT_SUCCESS(status) ); + } +#endif + + // + // Simply send the request on to the server. + // + + error = SsServerFsControl( NULL, FSCTL_SRV_NET_CHARDEV_CONTROL, srp, NULL, 0 ); + +#ifndef UNICODE + RtlFreeUnicodeString( &srp->Name1 ); +#endif + + SsFreeSrp( srp ); + + return error; +#else + ServerName, DeviceName, OpCode; + return ERROR_NOT_SUPPORTED; +#endif + +} // NetrCharDevControl + + +NET_API_STATUS NET_API_FUNCTION +NetrCharDevEnum ( + SRVSVC_HANDLE ServerName, + LPCHARDEV_ENUM_STRUCT InfoStruct, + DWORD PreferedMaximumLength, + LPDWORD TotalEntries, + LPDWORD ResumeHandle + ) + +/*++ + +Routine Description: + + This routine communicates with the server FSD to implement the + NetCharDevEnum function. + +Arguments: + + None. + +Return Value: + + NET_API_STATUS - NO_ERROR or reason for failure. + +--*/ + +{ +#ifdef SRV_COMM_DEVICES + NET_API_STATUS error; + PSERVER_REQUEST_PACKET srp; + + ServerName; + + // + // Make sure that the caller has the access necessary for this + // operation. + // + + error = SsCheckAccess( + &SsCharDevSecurityObject, + SRVSVC_CHARDEV_ADMIN_INFO_GET + ); + + if ( error != NO_ERROR ) { + return ERROR_ACCESS_DENIED; + } + + // + // Make sure that the level is valid. + // + + if ( InfoStruct->Level != 0 && InfoStruct->Level != 1 ) { + return ERROR_INVALID_LEVEL; + } + + // + // Set up the input parameters in the request buffer. + // + + srp = SsAllocateSrp( ); + if ( srp == NULL ) { + return ERROR_NOT_ENOUGH_MEMORY; + } + srp->Level = InfoStruct->Level; + + if ( ARGUMENT_PRESENT( ResumeHandle ) ) { + srp->Parameters.Get.ResumeHandle = *ResumeHandle; + } else { + srp->Parameters.Get.ResumeHandle = 0; + } + + // + // Get the data from the server. This routine will allocate the + // return buffer and handle the case where PreferredMaximumLength == + // -1. + // + + error = SsServerFsControlGetInfo( + FSCTL_SRV_NET_CHARDEV_ENUM, + srp, + (PVOID *)&InfoStruct->CharDevInfo.Level1->Buffer, + PreferedMaximumLength + ); + + // + // Set up return information. + // + + InfoStruct->CharDevInfo.Level1->EntriesRead = + srp->Parameters.Get.EntriesRead; + + if ( ARGUMENT_PRESENT( TotalEntries ) ) { + *TotalEntries = srp->Parameters.Get.TotalEntries; + } + + if ( srp->Parameters.Get.EntriesRead > 0 && + ARGUMENT_PRESENT( ResumeHandle ) ) { + + *ResumeHandle = srp->Parameters.Get.ResumeHandle; + } + + SsFreeSrp( srp ); + + return error; +#else + ServerName, InfoStruct, PreferedMaximumLength, TotalEntries, ResumeHandle; + return ERROR_NOT_SUPPORTED; +#endif + +} // NetrCharDevEnum + + +NET_API_STATUS +NetrCharDevGetInfo ( + IN LPTSTR ServerName, + IN LPTSTR DeviceName, + IN DWORD Level, + OUT LPCHARDEV_INFO CharDevInfo + ) + +/*++ + +Routine Description: + + This routine communicates with the server FSD to implement the + NetCharDevGetInfo function. + +Arguments: + + None. + +Return Value: + + NET_API_STATUS - NO_ERROR or reason for failure. + +--*/ + +{ +#ifdef SRV_COMM_DEVICES + NET_API_STATUS error; + PSERVER_REQUEST_PACKET srp; + + ServerName; + + // + // Make sure that the caller has the access necessary for this + // operation. + // + + error = SsCheckAccess( + &SsCharDevSecurityObject, + SRVSVC_CHARDEV_ADMIN_INFO_GET + ); + + if ( error != NO_ERROR ) { + return ERROR_ACCESS_DENIED; + } + + // + // Make sure that the level is valid. + // + + if ( Level != 0 && Level != 1 ) { + return ERROR_INVALID_LEVEL; + } + + // + // Set up the input parameters in the request buffer. + // + + srp = SsAllocateSrp( ); + if ( srp == NULL ) { + return ERROR_NOT_ENOUGH_MEMORY; + } + srp->Level = Level; + srp->Flags = SRP_RETURN_SINGLE_ENTRY; + srp->Parameters.Get.ResumeHandle = 0; + +#ifdef UNICODE + RtlInitUnicodeString( &srp->Name1, DeviceName ); +#else + { + NTSTATUS status; + OEM_STRING ansiString; + RtlInitString( &ansiString, DeviceName ); + status = RtlOemStringToUnicodeString( &srp->Name1, &ansiString, TRUE ); + SS_ASSERT( NT_SUCCESS(status) ); + } +#endif + + // + // Get the data from the server. This routine will allocate the + // return buffer and handle the case where PreferredMaximumLength == + // -1. + // + + error = SsServerFsControlGetInfo( + FSCTL_SRV_NET_CHARDEV_ENUM, + srp, + (PVOID *)CharDevInfo, + -1 + ); + + // + // Free resources and return. + // + +#ifndef UNICODE + RtlFreeUnicodeString( &srp->Name1 ); +#endif + + SsFreeSrp( srp ); + + return error; +#else + ServerName, DeviceName, Level, CharDevInfo; + return ERROR_NOT_SUPPORTED; +#endif + +} // NetrCharDevGetInfo + |