mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
387 lines
8.8 KiB
387 lines
8.8 KiB
/*++
|
|
|
|
Copyright (c) 1999 Microsoft Corporation
|
|
|
|
|
|
Module Name:
|
|
|
|
template.c
|
|
|
|
Abstract:
|
|
|
|
Contains common template matching code
|
|
|
|
Author:
|
|
|
|
BrianSw 10-19-200
|
|
|
|
Environment:
|
|
|
|
User Level: Win32/kernel
|
|
NOTE: Since this is used by user and kernel mode, code accordingly
|
|
|
|
Revision History:
|
|
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
|
|
|
|
|
|
BOOL
|
|
WINAPI IsAllZero(BYTE *c, DWORD dwSize)
|
|
{
|
|
|
|
DWORD i;
|
|
for (i=0;i<dwSize;i++) {
|
|
if (c[i] != 0) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpBlob(IPSEC_BYTE_BLOB* c1, IPSEC_BYTE_BLOB *c2)
|
|
{
|
|
|
|
if (c1->dwSize == 0) {
|
|
return TRUE;
|
|
}
|
|
if (c1->dwSize != c2->dwSize) {
|
|
return FALSE;
|
|
}
|
|
if (memcmp(c1->pBlob,c2->pBlob,c1->dwSize) == 0) {
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpData(BYTE* c1, BYTE *c2, DWORD size)
|
|
{
|
|
|
|
if ((!IsAllZero(c1,size)) &&
|
|
(memcmp(c1,c2,size) != 0)) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
For comparing structs like:
|
|
|
|
typedef struct _PROTOCOL {
|
|
PROTOCOL_TYPE ProtocolType;
|
|
DWORD dwProtocol;
|
|
} PROTOCOL, * PPROTOCOL;
|
|
|
|
dwTypeSize is sizeof PROTOCOL_TYPE, dwStructSize is sizeof(PROTOCOL)
|
|
|
|
Assumes type info is first in struct
|
|
|
|
Template symantics:
|
|
|
|
Template is:
|
|
All 0, everything matches
|
|
Type 0, rest non-0, exact match of rest of data
|
|
Type non-0, rest 0, all entries of given type
|
|
Type non-0, rest non-0, exact match
|
|
|
|
*/
|
|
BOOL
|
|
WINAPI CmpTypeStruct(BYTE *Template, BYTE *comp,
|
|
DWORD dwTypeSize, DWORD dwStructSize)
|
|
{
|
|
|
|
if (IsAllZero(Template,dwStructSize)) {
|
|
return TRUE;
|
|
}
|
|
|
|
if (IsAllZero(Template,dwTypeSize)) {
|
|
if (memcmp(Template+dwTypeSize,comp+dwTypeSize,
|
|
dwStructSize-dwTypeSize) == 0) {
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
// Know here that Template.TypeInfo is non-0
|
|
if (memcmp(Template,comp,dwTypeSize) != 0) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (IsAllZero(Template+dwTypeSize,dwStructSize-dwTypeSize)) {
|
|
return TRUE;
|
|
}
|
|
if (memcmp(Template+dwTypeSize,comp+dwTypeSize,dwStructSize-dwTypeSize) == 0) {
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpAddr(ADDR *Template, ADDR *a2)
|
|
{
|
|
if (Template->AddrType == IP_ADDR_UNIQUE && Template->uIpAddr) {
|
|
if (Template->uIpAddr != (a2->uIpAddr)) {
|
|
return FALSE;
|
|
}
|
|
if (a2->AddrType != IP_ADDR_UNIQUE) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (Template->AddrType == IP_ADDR_SUBNET && Template->uIpAddr) {
|
|
if ((Template->uIpAddr & Template->uSubNetMask)
|
|
!= (a2->uIpAddr & Template->uSubNetMask)) {
|
|
return FALSE;
|
|
}
|
|
// Make sure template subnet contains a2's subnet (if a2 is unique, any subnet is superset of unique filter
|
|
if (a2->AddrType == IP_ADDR_SUBNET &&
|
|
((Template->uSubNetMask & a2->uSubNetMask) != Template->uSubNetMask)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpFilter(IPSEC_QM_FILTER *Template, IPSEC_QM_FILTER* f2)
|
|
{
|
|
|
|
|
|
if (!CmpTypeStruct((BYTE*)&Template->Protocol,
|
|
(BYTE*)&f2->Protocol,
|
|
sizeof(PROTOCOL_TYPE),
|
|
sizeof(PROTOCOL))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpTypeStruct((BYTE*)&Template->SrcPort,
|
|
(BYTE*)&f2->SrcPort,
|
|
sizeof(PORT_TYPE),
|
|
sizeof(PORT))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpTypeStruct((BYTE*)&Template->DesPort,
|
|
(BYTE*)&f2->DesPort,
|
|
sizeof(PORT_TYPE),
|
|
sizeof(PORT))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (Template->QMFilterType) {
|
|
if (Template->QMFilterType != f2->QMFilterType) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
if (!CmpData((BYTE*)&Template->MyTunnelEndpt,
|
|
(BYTE*)&f2->MyTunnelEndpt,
|
|
sizeof(ADDR))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->PeerTunnelEndpt,
|
|
(BYTE*)&f2->PeerTunnelEndpt,
|
|
sizeof(ADDR))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpAddr(&Template->SrcAddr,&f2->SrcAddr)) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpAddr(&Template->DesAddr,&f2->DesAddr)) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpQMAlgo(PIPSEC_QM_ALGO Template, PIPSEC_QM_ALGO a2)
|
|
{
|
|
|
|
if (!CmpData((BYTE*)&Template->Operation,
|
|
(BYTE*)&a2->Operation,
|
|
sizeof(IPSEC_OPERATION))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->uAlgoIdentifier,
|
|
(BYTE*)&a2->uAlgoIdentifier,
|
|
sizeof(ULONG))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->uSecAlgoIdentifier,
|
|
(BYTE*)&a2->uSecAlgoIdentifier,
|
|
sizeof(HMAC_AH_ALGO))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->MySpi,
|
|
(BYTE*)&a2->MySpi,
|
|
sizeof(IPSEC_QM_SPI))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->PeerSpi,
|
|
(BYTE*)&a2->PeerSpi,
|
|
sizeof(IPSEC_QM_SPI))) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
BOOL
|
|
WINAPI CmpQMOffer(PIPSEC_QM_OFFER Template, PIPSEC_QM_OFFER o2)
|
|
{
|
|
|
|
DWORD i;
|
|
|
|
if (!CmpData((BYTE*)&Template->Lifetime,
|
|
(BYTE*)&o2->Lifetime,
|
|
sizeof(KEY_LIFETIME))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (Template->bPFSRequired) {
|
|
if (Template->bPFSRequired != o2->bPFSRequired) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
if (Template->dwPFSGroup) {
|
|
if (Template->dwPFSGroup != o2->dwPFSGroup) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
if (Template->dwNumAlgos) {
|
|
if (Template->dwNumAlgos != o2->dwNumAlgos) {
|
|
return FALSE;
|
|
}
|
|
for (i=0; i < Template->dwNumAlgos; i++) {
|
|
if (!CmpQMAlgo(&Template->Algos[i],
|
|
&o2->Algos[i])) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
/*
|
|
True if this NotifyListEntry Template matches the CurInfo
|
|
|
|
*/
|
|
BOOL
|
|
WINAPI MatchQMSATemplate(IPSEC_QM_SA *Template,IPSEC_QM_SA *CurInfo)
|
|
{
|
|
|
|
if (Template == NULL) {
|
|
return TRUE;
|
|
}
|
|
|
|
if (!CmpFilter(&Template->IpsecQMFilter,
|
|
&CurInfo->IpsecQMFilter)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->MMSpi.Initiator,
|
|
(BYTE*)&CurInfo->MMSpi.Initiator,sizeof(IKE_COOKIE))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->MMSpi.Responder,
|
|
(BYTE*)&CurInfo->MMSpi.Responder,sizeof(IKE_COOKIE))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&Template->gQMPolicyID,
|
|
(BYTE*)&CurInfo->gQMPolicyID,sizeof(GUID))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpQMOffer(&Template->SelectedQMOffer,
|
|
&CurInfo->SelectedQMOffer)) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
BOOL
|
|
WINAPI MatchMMSATemplate(IPSEC_MM_SA *MMTemplate, IPSEC_MM_SA *SaData)
|
|
{
|
|
|
|
if (MMTemplate == NULL) {
|
|
return TRUE;
|
|
}
|
|
if (!CmpData((BYTE*)&MMTemplate->gMMPolicyID,
|
|
(BYTE*)&SaData->gMMPolicyID,sizeof(GUID))) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpData((BYTE*)&MMTemplate->MMSpi.Initiator,
|
|
(BYTE*)&SaData->MMSpi.Initiator,sizeof(COOKIE))) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpData((BYTE*)&MMTemplate->MMSpi.Responder,
|
|
(BYTE*)&SaData->MMSpi.Responder,sizeof(COOKIE))) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpAddr(&MMTemplate->Me,&SaData->Me)) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpAddr(&MMTemplate->Peer,&SaData->Peer)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&MMTemplate->SelectedMMOffer.EncryptionAlgorithm,(BYTE*)&SaData->SelectedMMOffer.EncryptionAlgorithm,sizeof(IPSEC_MM_ALGO))) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpData((BYTE*)&MMTemplate->SelectedMMOffer.HashingAlgorithm,(BYTE*)&SaData->SelectedMMOffer.HashingAlgorithm,sizeof(IPSEC_MM_ALGO))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&MMTemplate->SelectedMMOffer.dwDHGroup,(BYTE*)&SaData->SelectedMMOffer.dwDHGroup,sizeof(DWORD))) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpData((BYTE*)&MMTemplate->SelectedMMOffer.Lifetime,(BYTE*)&SaData->SelectedMMOffer.Lifetime,sizeof(KEY_LIFETIME))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpData((BYTE*)&MMTemplate->SelectedMMOffer.dwQuickModeLimit,(BYTE*)&SaData->SelectedMMOffer.dwQuickModeLimit,sizeof(DWORD))) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!CmpBlob(&MMTemplate->MyId,&SaData->MyId)) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpBlob(&MMTemplate->PeerId,&SaData->PeerId)) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpBlob(&MMTemplate->MyCertificateChain,&SaData->MyCertificateChain)) {
|
|
return FALSE;
|
|
}
|
|
if (!CmpBlob(&MMTemplate->PeerCertificateChain,&SaData->PeerCertificateChain)) {
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
|
|
}
|