chain.c File Reference

#include <stdarg.h>
#include <wchar.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "wincrypt.h"
#include "wininet.h"
#include "wine/debug.h"
#include "crypt32_private.h"

Include dependency graph for chain.c:

Go to the source code of this file.

Classes
struct	_CertificateChainEngine
struct	_CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT
struct	_CertificateChain
struct	_CERT_CHAIN_PARA_NO_EXTRA_FIELDS

Macros
#define	CERT_CHAIN_PARA_HAS_EXTRA_FIELDS
#define	CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS
#define	DEFAULT_CYCLE_MODULUS   7
#define	trace_usage_bit(bits, bit)    if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)
#define	trace_cert_type_bit(bits, bit)    if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)
#define	CHAIN_QUALITY_SIGNATURE_VALID   0x16
#define	CHAIN_QUALITY_TIME_VALID   8
#define	CHAIN_QUALITY_COMPLETE_CHAIN   4
#define	CHAIN_QUALITY_BASIC_CONSTRAINTS   2
#define	CHAIN_QUALITY_TRUSTED_ROOT   1
#define	CHAIN_QUALITY_HIGHEST
#define	IS_TRUST_ERROR_SET(TrustStatus, bits)    (TrustStatus)->dwErrorStatus & (bits)

Typedefs
typedef struct _CertificateChainEngine	CertificateChainEngine
typedef struct _CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT	CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT
typedef struct _CertificateChain	CertificateChain
typedef struct _CERT_CHAIN_PARA_NO_EXTRA_FIELDS	CERT_CHAIN_PARA_NO_EXTRA_FIELDS
typedef BOOL(WINAPI *	CertVerifyCertificateChainPolicyFunc) (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (crypt)
	WINE_DECLARE_DEBUG_CHANNEL (chain)
static void	CRYPT_AddStoresToCollection (HCERTSTORE collection, DWORD cStores, HCERTSTORE *stores)
static void	CRYPT_CloseStores (DWORD cStores, HCERTSTORE *stores)
static PCCERT_CONTEXT	CRYPT_FindCertInStore (HCERTSTORE store, PCCERT_CONTEXT cert)
static BOOL	CRYPT_CheckRestrictedRoot (HCERTSTORE store)
HCERTCHAINENGINE	CRYPT_CreateChainEngine (HCERTSTORE root, DWORD system_store, const CERT_CHAIN_ENGINE_CONFIG *config)
static CertificateChainEngine *	get_chain_engine (HCERTCHAINENGINE handle, BOOL allow_default)
static void	free_chain_engine (CertificateChainEngine *engine)
BOOL WINAPI	CertCreateCertificateChainEngine (PCERT_CHAIN_ENGINE_CONFIG pConfig, HCERTCHAINENGINE *phChainEngine)
void WINAPI	CertFreeCertificateChainEngine (HCERTCHAINENGINE hChainEngine)
void	default_chain_engine_free (void)
DWORD	CRYPT_IsCertificateSelfSigned (const CERT_CONTEXT *cert)
static void	CRYPT_FreeChainElement (PCERT_CHAIN_ELEMENT element)
static void	CRYPT_CheckSimpleChainForCycles (PCERT_SIMPLE_CHAIN chain)
static BOOL	CRYPT_IsSimpleChainCyclic (const CERT_SIMPLE_CHAIN *chain)
static void	CRYPT_CombineTrustStatus (CERT_TRUST_STATUS *chainStatus, const CERT_TRUST_STATUS *elementStatus)
static BOOL	CRYPT_AddCertToSimpleChain (const CertificateChainEngine *engine, PCERT_SIMPLE_CHAIN chain, PCCERT_CONTEXT cert, DWORD subjectInfoStatus)
static void	CRYPT_FreeSimpleChain (PCERT_SIMPLE_CHAIN chain)
static void	CRYPT_CheckTrustedStatus (HCERTSTORE hRoot, PCERT_CHAIN_ELEMENT rootElement)
static void	CRYPT_CheckRootCert (HCERTSTORE hRoot, PCERT_CHAIN_ELEMENT rootElement)
static BOOL	CRYPT_DecodeBasicConstraints (PCCERT_CONTEXT cert, CERT_BASIC_CONSTRAINTS2_INFO *constraints, BOOL defaultIfNotSpecified)
static BOOL	CRYPT_CheckBasicConstraintsForCA (CertificateChainEngine *engine, PCCERT_CONTEXT cert, CERT_BASIC_CONSTRAINTS2_INFO *chainConstraints, DWORD remainingCAs, BOOL isRoot, BOOL *pathLengthConstraintViolated)
static BOOL	domain_name_matches (LPCWSTR constraint, LPCWSTR name)
static BOOL	url_matches (LPCWSTR constraint, LPCWSTR name, DWORD *trustErrorStatus)
static BOOL	rfc822_name_matches (LPCWSTR constraint, LPCWSTR name, DWORD *trustErrorStatus)
static BOOL	dns_name_matches (LPCWSTR constraint, LPCWSTR name, DWORD *trustErrorStatus)
static BOOL	ip_address_matches (const CRYPT_DATA_BLOB *constraint, const CRYPT_DATA_BLOB *name, DWORD *trustErrorStatus)
static BOOL	directory_name_matches (const CERT_NAME_BLOB *constraint, const CERT_NAME_BLOB *name)
static BOOL	alt_name_matches (const CERT_ALT_NAME_ENTRY *name, const CERT_ALT_NAME_ENTRY *constraint, DWORD *trustErrorStatus, BOOL *present)
static BOOL	alt_name_matches_excluded_name (const CERT_ALT_NAME_ENTRY *name, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus)
static BOOL	alt_name_matches_permitted_name (const CERT_ALT_NAME_ENTRY *name, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus, BOOL *present)
static PCERT_EXTENSION	get_subject_alt_name_ext (const CERT_INFO *cert)
static void	compare_alt_name_with_constraints (const CERT_EXTENSION *altNameExt, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus)
static BOOL	rfc822_attr_matches_excluded_name (const CERT_RDN_ATTR *attr, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus)
static BOOL	rfc822_attr_matches_permitted_name (const CERT_RDN_ATTR *attr, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus, BOOL *present)
static void	compare_subject_with_email_constraints (const CERT_NAME_BLOB *subjectName, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus)
static BOOL	CRYPT_IsEmptyName (const CERT_NAME_BLOB *name)
static void	compare_subject_with_constraints (const CERT_NAME_BLOB *subjectName, const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, DWORD *trustErrorStatus)
static void	CRYPT_CheckNameConstraints (const CERT_NAME_CONSTRAINTS_INFO *nameConstraints, const CERT_INFO *cert, DWORD *trustErrorStatus)
static CERT_NAME_CONSTRAINTS_INFO *	CRYPT_GetNameConstraints (CERT_INFO *cert)
static BOOL	CRYPT_IsValidNameConstraint (const CERT_NAME_CONSTRAINTS_INFO *info)
static void	CRYPT_CheckChainNameConstraints (PCERT_SIMPLE_CHAIN chain)
static CERT_POLICIES_INFO *	CRYPT_GetPolicies (PCCERT_CONTEXT cert)
static void	CRYPT_CheckPolicies (const CERT_POLICIES_INFO *policies, CERT_INFO *cert, DWORD *errorStatus)
static void	CRYPT_CheckChainPolicies (PCERT_SIMPLE_CHAIN chain)
static LPWSTR	name_value_to_str (const CERT_NAME_BLOB *name)
static void	dump_alt_name_entry (const CERT_ALT_NAME_ENTRY *entry)
static void	dump_alt_name (LPCSTR type, const CERT_EXTENSION *ext)
static void	dump_basic_constraints (const CERT_EXTENSION *ext)
static void	dump_basic_constraints2 (const CERT_EXTENSION *ext)
static void	dump_key_usage (const CERT_EXTENSION *ext)
static void	dump_general_subtree (const CERT_GENERAL_SUBTREE *subtree)
static void	dump_name_constraints (const CERT_EXTENSION *ext)
static void	dump_cert_policies (const CERT_EXTENSION *ext)
static void	dump_enhanced_key_usage (const CERT_EXTENSION *ext)
static void	dump_netscape_cert_type (const CERT_EXTENSION *ext)
static void	dump_extension (const CERT_EXTENSION *ext)
static LPCSTR	filetime_to_str (const FILETIME *time)
static void	dump_element (PCCERT_CONTEXT cert)
static BOOL	CRYPT_KeyUsageValid (CertificateChainEngine *engine, PCCERT_CONTEXT cert, BOOL isRoot, BOOL isCA, DWORD index)
static BOOL	CRYPT_CriticalExtensionsSupported (PCCERT_CONTEXT cert)
static BOOL	CRYPT_IsCertVersionValid (PCCERT_CONTEXT cert)
static void	CRYPT_CheckSimpleChain (CertificateChainEngine *engine, PCERT_SIMPLE_CHAIN chain, LPFILETIME time)
static PCCERT_CONTEXT	CRYPT_FindIssuer (const CertificateChainEngine *engine, const CERT_CONTEXT *cert, HCERTSTORE store, DWORD type, void *para, DWORD flags, PCCERT_CONTEXT prev_issuer)
static PCCERT_CONTEXT	CRYPT_GetIssuer (const CertificateChainEngine *engine, HCERTSTORE store, PCCERT_CONTEXT subject, PCCERT_CONTEXT prevIssuer, DWORD flags, DWORD *infoStatus)
static BOOL	CRYPT_BuildSimpleChain (const CertificateChainEngine *engine, HCERTSTORE world, DWORD flags, PCERT_SIMPLE_CHAIN chain)
static LPCSTR	debugstr_filetime (LPFILETIME pTime)
static BOOL	CRYPT_GetSimpleChainForCert (CertificateChainEngine *engine, HCERTSTORE world, PCCERT_CONTEXT cert, LPFILETIME pTime, DWORD flags, PCERT_SIMPLE_CHAIN *ppChain)
static BOOL	CRYPT_BuildCandidateChainFromCert (CertificateChainEngine *engine, PCCERT_CONTEXT cert, LPFILETIME pTime, HCERTSTORE hAdditionalStore, DWORD flags, CertificateChain **ppChain)
static PCERT_SIMPLE_CHAIN	CRYPT_CopySimpleChainToElement (const CERT_SIMPLE_CHAIN *chain, DWORD iElement)
static void	CRYPT_FreeLowerQualityChains (CertificateChain *chain)
static void	CRYPT_FreeChainContext (CertificateChain *chain)
static CertificateChain *	CRYPT_CopyChainToElement (CertificateChain *chain, DWORD iChain, DWORD iElement)
static CertificateChain *	CRYPT_BuildAlternateContextFromChain (CertificateChainEngine *engine, LPFILETIME pTime, HCERTSTORE hAdditionalStore, DWORD flags, CertificateChain *chain)
static DWORD	CRYPT_ChainQuality (const CertificateChain *chain)
static CertificateChain *	CRYPT_ChooseHighestQualityChain (CertificateChain *chain)
static BOOL	CRYPT_AddAlternateChainToChain (CertificateChain *chain, const CertificateChain *alternate)
static PCERT_CHAIN_ELEMENT	CRYPT_FindIthElementInChain (const CERT_CHAIN_CONTEXT *chain, DWORD i)
static void	CRYPT_VerifyChainRevocation (PCERT_CHAIN_CONTEXT chain, LPFILETIME pTime, HCERTSTORE hAdditionalStore, const CERT_CHAIN_PARA *pChainPara, DWORD chainFlags)
static void	CRYPT_CheckUsages (PCERT_CHAIN_CONTEXT chain, const CERT_CHAIN_PARA *pChainPara)
static void	dump_usage_match (LPCSTR name, const CERT_USAGE_MATCH *usageMatch)
static void	dump_chain_para (const CERT_CHAIN_PARA *pChainPara)
BOOL WINAPI	CertGetCertificateChain (HCERTCHAINENGINE hChainEngine, PCCERT_CONTEXT pCertContext, LPFILETIME pTime, HCERTSTORE hAdditionalStore, PCERT_CHAIN_PARA pChainPara, DWORD dwFlags, LPVOID pvReserved, PCCERT_CHAIN_CONTEXT *ppChainContext)
PCCERT_CHAIN_CONTEXT WINAPI	CertDuplicateCertificateChain (PCCERT_CHAIN_CONTEXT pChainContext)
VOID WINAPI	CertFreeCertificateChain (PCCERT_CHAIN_CONTEXT pChainContext)
PCCERT_CHAIN_CONTEXT WINAPI	CertFindChainInStore (HCERTSTORE store, DWORD certEncodingType, DWORD findFlags, DWORD findType, const void *findPara, PCCERT_CHAIN_CONTEXT prevChainContext)
static void	find_element_with_error (PCCERT_CHAIN_CONTEXT chain, DWORD error, LONG *iChain, LONG *iElement)
static BOOL WINAPI	verify_base_policy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
static void	dump_authenticode_extra_chain_policy_para (AUTHENTICODE_EXTRA_CERT_CHAIN_POLICY_PARA *extraPara)
static BOOL WINAPI	verify_authenticode_policy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
static BOOL WINAPI	verify_basic_constraints_policy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
static BOOL	match_dns_to_subject_alt_name (const CERT_EXTENSION *ext, LPCWSTR server_name)
static BOOL	find_matching_domain_component (const CERT_NAME_INFO *name, const WCHAR *component, size_t len)
static BOOL	match_domain_component (LPCWSTR allowed_component, DWORD allowed_len, LPCWSTR server_component, DWORD server_len, BOOL allow_wildcards, BOOL *see_wildcard)
static BOOL	match_common_name (LPCWSTR server_name, const CERT_RDN_ATTR *nameAttr)
static BOOL	match_dns_to_subject_dn (PCCERT_CONTEXT cert, LPCWSTR server_name)
static void	dump_ssl_extra_chain_policy_para (HTTPSPolicyCallbackData *sslPara)
static BOOL WINAPI	verify_ssl_policy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
static BOOL WINAPI	verify_ms_root_policy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)
static void	dump_policy_para (PCERT_CHAIN_POLICY_PARA para)
BOOL WINAPI	CertVerifyCertificateChainPolicy (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)

Variables
static CertificateChainEngine *	default_cu_engine
static CertificateChainEngine *	default_lm_engine
static BYTE	msTestPubKey1 []
static BYTE	msTestPubKey2 []
static BYTE	msPubKey1 []
static BYTE	msPubKey2 []
static BYTE	msPubKey3 []
static BYTE	msPubKey4 []
static BYTE	msPubKey5 []

Macro Definition Documentation

CERT_CHAIN_PARA_HAS_EXTRA_FIELDS

#define CERT_CHAIN_PARA_HAS_EXTRA_FIELDS

Definition at line 26 of file chain.c.

CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS

#define CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS

Definition at line 27 of file chain.c.

CHAIN_QUALITY_BASIC_CONSTRAINTS

#define CHAIN_QUALITY_BASIC_CONSTRAINTS   2

Definition at line 2513 of file chain.c.

CHAIN_QUALITY_COMPLETE_CHAIN

#define CHAIN_QUALITY_COMPLETE_CHAIN   4

Definition at line 2512 of file chain.c.

CHAIN_QUALITY_HIGHEST

#define CHAIN_QUALITY_HIGHEST

Value:

 CHAIN_QUALITY_SIGNATURE_VALID | CHAIN_QUALITY_TIME_VALID | \
 CHAIN_QUALITY_COMPLETE_CHAIN | CHAIN_QUALITY_BASIC_CONSTRAINTS | \
 CHAIN_QUALITY_TRUSTED_ROOT

Definition at line 2516 of file chain.c.

CHAIN_QUALITY_SIGNATURE_VALID

#define CHAIN_QUALITY_SIGNATURE_VALID   0x16

Definition at line 2510 of file chain.c.

CHAIN_QUALITY_TIME_VALID

#define CHAIN_QUALITY_TIME_VALID   8

Definition at line 2511 of file chain.c.

CHAIN_QUALITY_TRUSTED_ROOT

#define CHAIN_QUALITY_TRUSTED_ROOT   1

Definition at line 2514 of file chain.c.

DEFAULT_CYCLE_MODULUS

#define DEFAULT_CYCLE_MODULUS   7

Definition at line 36 of file chain.c.

IS_TRUST_ERROR_SET

#define IS_TRUST_ERROR_SET	(		TrustStatus,
			bits
	)		(TrustStatus)->dwErrorStatus & (bits)

Definition at line 2521 of file chain.c.

trace_cert_type_bit

#define trace_cert_type_bit	(		bits,
			bit
	)		if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)

trace_usage_bit

#define trace_usage_bit	(		bits,
			bit
	)		if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)

Typedef Documentation

CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT

typedef struct _CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT

CERT_CHAIN_PARA_NO_EXTRA_FIELDS

typedef struct _CERT_CHAIN_PARA_NO_EXTRA_FIELDS CERT_CHAIN_PARA_NO_EXTRA_FIELDS

CertificateChain

typedef struct _CertificateChain CertificateChain

CertificateChainEngine

typedef struct _CertificateChainEngine CertificateChainEngine

CertVerifyCertificateChainPolicyFunc

typedef BOOL(WINAPI * CertVerifyCertificateChainPolicyFunc) (LPCSTR szPolicyOID, PCCERT_CHAIN_CONTEXT pChainContext, PCERT_CHAIN_POLICY_PARA pPolicyPara, PCERT_CHAIN_POLICY_STATUS pPolicyStatus)

Definition at line 3792 of file chain.c.

Function Documentation

alt_name_matches()

static BOOL alt_name_matches ( const CERT_ALT_NAME_ENTRY *  name, const CERT_ALT_NAME_ENTRY *  constraint, DWORD *  trustErrorStatus, BOOL *  present  )

static

Definition at line 882 of file chain.c.

{
    BOOL match = FALSE;
 
    if (name->dwAltNameChoice == constraint->dwAltNameChoice)
    {
        if (present)
            *present = TRUE;
        switch (constraint->dwAltNameChoice)
        {
        case CERT_ALT_NAME_RFC822_NAME:
            match = rfc822_name_matches(constraint->pwszURL,
             name->pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_DNS_NAME:
            match = dns_name_matches(constraint->pwszURL,
             name->pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_URL:
            match = url_matches(constraint->pwszURL,
             name->pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_IP_ADDRESS:
            match = ip_address_matches(&constraint->IPAddress,
             &name->IPAddress, trustErrorStatus);
            break;
        case CERT_ALT_NAME_DIRECTORY_NAME:
            match = directory_name_matches(&constraint->DirectoryName,
             &name->DirectoryName);
            break;
        default:
            ERR("name choice %ld unsupported in this context\n",
             constraint->dwAltNameChoice);
            *trustErrorStatus |=
             CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT;
        }
    }
    else if (present)
        *present = FALSE;
    return match;
}

Referenced by alt_name_matches_excluded_name(), and alt_name_matches_permitted_name().

alt_name_matches_excluded_name()

static BOOL alt_name_matches_excluded_name ( const CERT_ALT_NAME_ENTRY *  name, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus  )

static

Definition at line 925 of file chain.c.

{
    DWORD i;
    BOOL match = FALSE;
 
    for (i = 0; !match && i < nameConstraints->cExcludedSubtree; i++)
        match = alt_name_matches(name,
         &nameConstraints->rgExcludedSubtree[i].Base, trustErrorStatus, NULL);
    return match;
}

Referenced by compare_alt_name_with_constraints().

alt_name_matches_permitted_name()

static BOOL alt_name_matches_permitted_name ( const CERT_ALT_NAME_ENTRY *  name, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus, BOOL *  present  )

static

Definition at line 937 of file chain.c.

{
    DWORD i;
    BOOL match = FALSE;
 
    for (i = 0; !match && i < nameConstraints->cPermittedSubtree; i++)
        match = alt_name_matches(name,
         &nameConstraints->rgPermittedSubtree[i].Base, trustErrorStatus,
         present);
    return match;
}

Referenced by compare_alt_name_with_constraints().

CertCreateCertificateChainEngine()

BOOL WINAPI CertCreateCertificateChainEngine	(	PCERT_CHAIN_ENGINE_CONFIG	pConfig,
		HCERTCHAINENGINE *	phChainEngine
	)

Definition at line 221 of file chain.c.

{
    BOOL ret;
 
    TRACE("(%p, %p)\n", pConfig, phChainEngine);
 
    if (pConfig->cbSize != sizeof(CERT_CHAIN_ENGINE_CONFIG_NO_EXCLUSIVE_ROOT)
     && pConfig->cbSize != sizeof(CERT_CHAIN_ENGINE_CONFIG))
    {
        SetLastError(E_INVALIDARG);
        return FALSE;
    }
    ret = CRYPT_CheckRestrictedRoot(pConfig->hRestrictedRoot);
    if (!ret)
    {
        *phChainEngine = NULL;
        return FALSE;
    }
 
    *phChainEngine = CRYPT_CreateChainEngine(NULL, CERT_SYSTEM_STORE_CURRENT_USER, pConfig);
    return *phChainEngine != NULL;
}

Referenced by check_ssl_policy(), CRYPTDLG_MakeEngine(), save_pfx(), and testCreateCertChainEngine().

CertDuplicateCertificateChain()

PCCERT_CHAIN_CONTEXT WINAPI CertDuplicateCertificateChain

(

PCCERT_CHAIN_CONTEXT

pChainContext

)

Definition at line 2944 of file chain.c.

{
    CertificateChain *chain = (CertificateChain*)pChainContext;
 
    TRACE("(%p)\n", pChainContext);
 
    if (chain)
        InterlockedIncrement(&chain->ref);
    return pChainContext;
}

Referenced by CRYPTDLG_CopyChain(), and InternetGetSecurityInfoByURLW().

CertFindChainInStore()

PCCERT_CHAIN_CONTEXT WINAPI CertFindChainInStore	(	HCERTSTORE	store,
		DWORD	certEncodingType,
		DWORD	findFlags,
		DWORD	findType,
		const void *	findPara,
		PCCERT_CHAIN_CONTEXT	prevChainContext
	)

Definition at line 2969 of file chain.c.

{
    FIXME("(%p, %08lx, %08lx, %ld, %p, %p): stub\n", store, certEncodingType,
     findFlags, findType, findPara, prevChainContext);
    return NULL;
}

CertFreeCertificateChain()

VOID WINAPI CertFreeCertificateChain

(

PCCERT_CHAIN_CONTEXT

pChainContext

)

Definition at line 2956 of file chain.c.

{
    CertificateChain *chain = (CertificateChain*)pChainContext;
 
    TRACE("(%p)\n", pChainContext);
 
    if (chain)
    {
        if (InterlockedDecrement(&chain->ref) == 0)
            CRYPT_FreeChainContext(chain);
    }
}

Referenced by _test_security_info(), CertGetCertificateChain(), CertTrustFinalPolicy(), check_and_store_certs(), checkChainPolicyStatus(), CRYPT_FreeLowerQualityChains(), InitFunctionPtrs(), netconn_verify_cert(), save_cert_as_cms(), save_pfx(), server_release(), SoftpubCleanup(), test_CERT_CHAIN_PARA_cbSize(), testGetCertChain(), and testVerifyCertChainPolicy().

CertFreeCertificateChainEngine()

void WINAPI CertFreeCertificateChainEngine

(

HCERTCHAINENGINE

hChainEngine

)

Definition at line 245 of file chain.c.

{
    TRACE("(%p)\n", hChainEngine);
    free_chain_engine(get_chain_engine(hChainEngine, FALSE));
}

Referenced by CertTrustFinalPolicy(), check_and_store_certs(), check_ssl_policy(), get_chain_engine(), save_pfx(), and testCreateCertChainEngine().

CertGetCertificateChain()

BOOL WINAPI CertGetCertificateChain	(	HCERTCHAINENGINE	hChainEngine,
		PCCERT_CONTEXT	pCertContext,
		LPFILETIME	pTime,
		HCERTSTORE	hAdditionalStore,
		PCERT_CHAIN_PARA	pChainPara,
		DWORD	dwFlags,
		LPVOID	pvReserved,
		PCCERT_CHAIN_CONTEXT *	ppChainContext
	)

Definition at line 2875 of file chain.c.

{
    CertificateChainEngine *engine;
    BOOL ret;
    CertificateChain *chain = NULL;
 
    TRACE("(%p, %p, %s, %p, %p, %08lx, %p, %p)\n", hChainEngine, pCertContext,
     debugstr_filetime(pTime), hAdditionalStore, pChainPara, dwFlags,
     pvReserved, ppChainContext);
 
    engine = get_chain_engine(hChainEngine, TRUE);
    if (!engine)
        return FALSE;
 
    if (ppChainContext)
        *ppChainContext = NULL;
    if (!pChainPara)
    {
        SetLastError(E_INVALIDARG);
        return FALSE;
    }
    if (!pCertContext->pCertInfo->SignatureAlgorithm.pszObjId)
    {
        SetLastError(ERROR_INVALID_DATA);
        return FALSE;
    }
 
    if (TRACE_ON(chain))
        dump_chain_para(pChainPara);
    /* FIXME: what about HCCE_LOCAL_MACHINE? */
    ret = CRYPT_BuildCandidateChainFromCert(engine, pCertContext, pTime,
     hAdditionalStore, dwFlags, &chain);
    if (ret)
    {
        CertificateChain *alternate = NULL;
        PCERT_CHAIN_CONTEXT pChain;
 
        do {
            alternate = CRYPT_BuildAlternateContextFromChain(engine,
             pTime, hAdditionalStore, dwFlags, chain);
 
            /* Alternate contexts are added as "lower quality" contexts of
             * chain, to avoid loops in alternate chain creation.
             * The highest-quality chain is chosen at the end.
             */
            if (alternate)
                ret = CRYPT_AddAlternateChainToChain(chain, alternate);
        } while (ret && alternate);
        chain = CRYPT_ChooseHighestQualityChain(chain);
        if (!(dwFlags & CERT_CHAIN_RETURN_LOWER_QUALITY_CONTEXTS))
            CRYPT_FreeLowerQualityChains(chain);
        pChain = (PCERT_CHAIN_CONTEXT)chain;
        CRYPT_VerifyChainRevocation(pChain, pTime, hAdditionalStore,
         pChainPara, dwFlags);
        CRYPT_CheckUsages(pChain, pChainPara);
        TRACE_(chain)("error status: %08lx\n",
         pChain->TrustStatus.dwErrorStatus);
        if (ppChainContext)
            *ppChainContext = pChain;
        else
            CertFreeCertificateChain(pChain);
    }
    TRACE("returning %d\n", ret);
    return ret;
}

Referenced by CertTrustFinalPolicy(), check_and_store_certs(), getChain(), netconn_verify_cert(), save_cert_as_cms(), save_pfx(), test_CERT_CHAIN_PARA_cbSize(), testGetCertChain(), testVerifyCertChainPolicy(), and WINTRUST_CreateChainForSigner().

CertVerifyCertificateChainPolicy()

BOOL WINAPI CertVerifyCertificateChainPolicy	(	LPCSTR	szPolicyOID,
		PCCERT_CHAIN_CONTEXT	pChainContext,
		PCERT_CHAIN_POLICY_PARA	pPolicyPara,
		PCERT_CHAIN_POLICY_STATUS	pPolicyStatus
	)

Definition at line 3806 of file chain.c.

{
    static HCRYPTOIDFUNCSET set = NULL;
    BOOL ret = FALSE;
    CertVerifyCertificateChainPolicyFunc verifyPolicy = NULL;
    HCRYPTOIDFUNCADDR hFunc = NULL;
 
    TRACE("(%s, %p, %p, %p)\n", debugstr_a(szPolicyOID), pChainContext,
     pPolicyPara, pPolicyStatus);
    if (TRACE_ON(chain))
        dump_policy_para(pPolicyPara);
 
    if (IS_INTOID(szPolicyOID))
    {
        switch (LOWORD(szPolicyOID))
        {
        case LOWORD(CERT_CHAIN_POLICY_BASE):
            verifyPolicy = verify_base_policy;
            break;
        case LOWORD(CERT_CHAIN_POLICY_AUTHENTICODE):
            verifyPolicy = verify_authenticode_policy;
            break;
        case LOWORD(CERT_CHAIN_POLICY_SSL):
            verifyPolicy = verify_ssl_policy;
            break;
        case LOWORD(CERT_CHAIN_POLICY_BASIC_CONSTRAINTS):
            verifyPolicy = verify_basic_constraints_policy;
            break;
        case LOWORD(CERT_CHAIN_POLICY_MICROSOFT_ROOT):
            verifyPolicy = verify_ms_root_policy;
            break;
        default:
            FIXME("unimplemented for %d\n", LOWORD(szPolicyOID));
        }
    }
    if (!verifyPolicy)
    {
        if (!set)
            set = CryptInitOIDFunctionSet(
             CRYPT_OID_VERIFY_CERTIFICATE_CHAIN_POLICY_FUNC, 0);
        CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, szPolicyOID, 0,
         (void **)&verifyPolicy, &hFunc);
    }
    if (verifyPolicy)
        ret = verifyPolicy(szPolicyOID, pChainContext, pPolicyPara,
         pPolicyStatus);
    if (hFunc)
        CryptFreeOIDFunctionAddress(hFunc, 0);
    TRACE("returning %d (%08lx)\n", ret, pPolicyStatus->dwError);
    return ret;
}

Referenced by checkChainPolicyStatus(), netconn_verify_cert(), SoftpubAuthenticode(), testVerifyCertChainPolicy(), and WINTRUST_DefaultPolicy().

compare_alt_name_with_constraints()

static void compare_alt_name_with_constraints ( const CERT_EXTENSION *  altNameExt, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus  )

static

Definition at line 963 of file chain.c.

{
    CERT_ALT_NAME_INFO *subjectAltName;
    DWORD size;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ALTERNATE_NAME,
     altNameExt->Value.pbData, altNameExt->Value.cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
     &subjectAltName, &size))
    {
        DWORD i;
 
        for (i = 0; i < subjectAltName->cAltEntry; i++)
        {
             BOOL nameFormPresent;
 
             /* A name constraint only applies if the name form is present.
              * From RFC 5280, section 4.2.1.10:
              * "Restrictions apply only when the specified name form is
              *  present.  If no name of the type is in the certificate,
              *  the certificate is acceptable."
              */
            if (alt_name_matches_excluded_name(
             &subjectAltName->rgAltEntry[i], nameConstraints,
             trustErrorStatus))
            {
                TRACE_(chain)("subject alternate name form %ld excluded\n",
                 subjectAltName->rgAltEntry[i].dwAltNameChoice);
                *trustErrorStatus |=
                 CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT;
            }
            nameFormPresent = FALSE;
            if (!alt_name_matches_permitted_name(
             &subjectAltName->rgAltEntry[i], nameConstraints,
             trustErrorStatus, &nameFormPresent) && nameFormPresent)
            {
                TRACE_(chain)("subject alternate name form %ld not permitted\n",
                 subjectAltName->rgAltEntry[i].dwAltNameChoice);
                *trustErrorStatus |=
                 CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT;
            }
        }
        LocalFree(subjectAltName);
    }
    else
        *trustErrorStatus |=
         CERT_TRUST_INVALID_EXTENSION | CERT_TRUST_INVALID_NAME_CONSTRAINTS;
}

Referenced by CRYPT_CheckNameConstraints().

compare_subject_with_constraints()

static void compare_subject_with_constraints ( const CERT_NAME_BLOB *  subjectName, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus  )

static

Definition at line 1122 of file chain.c.

{
    BOOL hasEmailConstraint = FALSE;
    DWORD i;
 
    /* In general, a subject distinguished name only matches a directory name
     * constraint.  However, an exception exists for email addresses.
     * From RFC 5280, section 4.2.1.6:
     * "Legacy implementations exist where an electronic mail address is
     *  embedded in the subject distinguished name as an emailAddress
     *  attribute [RFC2985]."
     * If an email address constraint exists, check that constraint separately.
     */
    for (i = 0; !hasEmailConstraint && i < nameConstraints->cExcludedSubtree;
     i++)
        if (nameConstraints->rgExcludedSubtree[i].Base.dwAltNameChoice ==
         CERT_ALT_NAME_RFC822_NAME)
            hasEmailConstraint = TRUE;
    for (i = 0; !hasEmailConstraint && i < nameConstraints->cPermittedSubtree;
     i++)
        if (nameConstraints->rgPermittedSubtree[i].Base.dwAltNameChoice ==
         CERT_ALT_NAME_RFC822_NAME)
            hasEmailConstraint = TRUE;
    if (hasEmailConstraint)
        compare_subject_with_email_constraints(subjectName, nameConstraints,
         trustErrorStatus);
    for (i = 0; i < nameConstraints->cExcludedSubtree; i++)
    {
        CERT_ALT_NAME_ENTRY *constraint =
         &nameConstraints->rgExcludedSubtree[i].Base;
 
        if (constraint->dwAltNameChoice == CERT_ALT_NAME_DIRECTORY_NAME &&
         directory_name_matches(&constraint->DirectoryName, subjectName))
        {
            TRACE_(chain)("subject name is excluded\n");
            *trustErrorStatus |=
             CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT;
        }
    }
    /* RFC 5280, section 4.2.1.10:
     * "Restrictions apply only when the specified name form is present.
     *  If no name of the type is in the certificate, the certificate is
     *  acceptable."
     * An empty name can't have the name form present, so don't check it.
     */
    if (nameConstraints->cPermittedSubtree && !CRYPT_IsEmptyName(subjectName))
    {
        BOOL match = FALSE, hasDirectoryConstraint = FALSE;
 
        for (i = 0; !match && i < nameConstraints->cPermittedSubtree; i++)
        {
            CERT_ALT_NAME_ENTRY *constraint =
             &nameConstraints->rgPermittedSubtree[i].Base;
 
            if (constraint->dwAltNameChoice == CERT_ALT_NAME_DIRECTORY_NAME)
            {
                hasDirectoryConstraint = TRUE;
                match = directory_name_matches(&constraint->DirectoryName,
                 subjectName);
            }
        }
        if (hasDirectoryConstraint && !match)
        {
            TRACE_(chain)("subject name is not permitted\n");
            *trustErrorStatus |= CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT;
        }
    }
}

Referenced by CRYPT_CheckNameConstraints().

compare_subject_with_email_constraints()

static void compare_subject_with_email_constraints ( const CERT_NAME_BLOB *  subjectName, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus  )

static

Definition at line 1053 of file chain.c.

{
    CERT_NAME_INFO *name;
    DWORD size;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_UNICODE_NAME,
     subjectName->pbData, subjectName->cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL, &name, &size))
    {
        DWORD i, j;
 
        for (i = 0; i < name->cRDN; i++)
            for (j = 0; j < name->rgRDN[i].cRDNAttr; j++)
                if (!strcmp(name->rgRDN[i].rgRDNAttr[j].pszObjId,
                 szOID_RSA_emailAddr))
                {
                    BOOL nameFormPresent;
 
                    /* A name constraint only applies if the name form is
                     * present.  From RFC 5280, section 4.2.1.10:
                     * "Restrictions apply only when the specified name form is
                     *  present.  If no name of the type is in the certificate,
                     *  the certificate is acceptable."
                     */
                    if (rfc822_attr_matches_excluded_name(
                     &name->rgRDN[i].rgRDNAttr[j], nameConstraints,
                     trustErrorStatus))
                    {
                        TRACE_(chain)(
                         "email address in subject name is excluded\n");
                        *trustErrorStatus |=
                         CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT;
                    }
                    nameFormPresent = FALSE;
                    if (!rfc822_attr_matches_permitted_name(
                     &name->rgRDN[i].rgRDNAttr[j], nameConstraints,
                     trustErrorStatus, &nameFormPresent) && nameFormPresent)
                    {
                        TRACE_(chain)(
                         "email address in subject name is not permitted\n");
                        *trustErrorStatus |=
                         CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT;
                    }
                }
        LocalFree(name);
    }
    else
        *trustErrorStatus |=
         CERT_TRUST_INVALID_EXTENSION | CERT_TRUST_INVALID_NAME_CONSTRAINTS;
}

Referenced by compare_subject_with_constraints().

CRYPT_AddAlternateChainToChain()

static BOOL CRYPT_AddAlternateChainToChain ( CertificateChain *  chain, const CertificateChain *  alternate  )

static

Definition at line 2582 of file chain.c.

{
    BOOL ret;
 
    if (chain->context.cLowerQualityChainContext)
        chain->context.rgpLowerQualityChainContext =
         CryptMemRealloc(chain->context.rgpLowerQualityChainContext,
         (chain->context.cLowerQualityChainContext + 1) *
         sizeof(PCCERT_CHAIN_CONTEXT));
    else
        chain->context.rgpLowerQualityChainContext =
         CryptMemAlloc(sizeof(PCCERT_CHAIN_CONTEXT));
    if (chain->context.rgpLowerQualityChainContext)
    {
        chain->context.rgpLowerQualityChainContext[
         chain->context.cLowerQualityChainContext++] =
         (PCCERT_CHAIN_CONTEXT)alternate;
        ret = TRUE;
    }
    else
        ret = FALSE;
    return ret;
}

Referenced by CertGetCertificateChain().

CRYPT_AddCertToSimpleChain()

static BOOL CRYPT_AddCertToSimpleChain ( const CertificateChainEngine *  engine, PCERT_SIMPLE_CHAIN  chain, PCCERT_CONTEXT  cert, DWORD  subjectInfoStatus  )

static

Definition at line 423 of file chain.c.

{
    BOOL ret = FALSE;
    PCERT_CHAIN_ELEMENT element = CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT));
 
    if (element)
    {
        if (!chain->cElement)
            chain->rgpElement = CryptMemAlloc(sizeof(PCERT_CHAIN_ELEMENT));
        else
            chain->rgpElement = CryptMemRealloc(chain->rgpElement,
             (chain->cElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
        if (chain->rgpElement)
        {
            chain->rgpElement[chain->cElement++] = element;
            memset(element, 0, sizeof(CERT_CHAIN_ELEMENT));
            element->cbSize = sizeof(CERT_CHAIN_ELEMENT);
            element->pCertContext = CertDuplicateCertificateContext(cert);
            if (chain->cElement > 1)
                chain->rgpElement[chain->cElement - 2]->TrustStatus.dwInfoStatus
                 = subjectInfoStatus;
            /* FIXME: initialize the rest of element */
            if (!(chain->cElement % engine->CycleDetectionModulus))
            {
                CRYPT_CheckSimpleChainForCycles(chain);
                /* Reinitialize the element pointer in case the chain is
                 * cyclic, in which case the chain is truncated.
                 */
                element = chain->rgpElement[chain->cElement - 1];
            }
            CRYPT_CombineTrustStatus(&chain->TrustStatus,
             &element->TrustStatus);
            ret = TRUE;
        }
        else
            CryptMemFree(element);
    }
    return ret;
}

Referenced by CRYPT_BuildAlternateContextFromChain(), CRYPT_BuildSimpleChain(), and CRYPT_GetSimpleChainForCert().

CRYPT_AddStoresToCollection()

static void CRYPT_AddStoresToCollection ( HCERTSTORE  collection, DWORD  cStores, HCERTSTORE *  stores  )

inlinestatic

Definition at line 54 of file chain.c.

{
    DWORD i;
 
    for (i = 0; i < cStores; i++)
        CertAddStoreToCollection(collection, stores[i], 0, 0);
}

Referenced by CRYPT_CreateChainEngine().

CRYPT_BuildAlternateContextFromChain()

static CertificateChain * CRYPT_BuildAlternateContextFromChain ( CertificateChainEngine *  engine, LPFILETIME  pTime, HCERTSTORE  hAdditionalStore, DWORD  flags, CertificateChain *  chain  )

static

Definition at line 2438 of file chain.c.

{
    CertificateChain *alternate;
 
    TRACE("(%p, %s, %p, %p)\n", engine, debugstr_filetime(pTime),
     hAdditionalStore, chain);
 
    /* Always start with the last "lower quality" chain to ensure a consistent
     * order of alternate creation:
     */
    if (chain->context.cLowerQualityChainContext)
        chain = (CertificateChain*)chain->context.rgpLowerQualityChainContext[
         chain->context.cLowerQualityChainContext - 1];
    /* A chain with only one element can't have any alternates */
    if (chain->context.cChain <= 1 && chain->context.rgpChain[0]->cElement <= 1)
        alternate = NULL;
    else
    {
        DWORD i, j, infoStatus;
        PCCERT_CONTEXT alternateIssuer = NULL;
 
        alternate = NULL;
        for (i = 0; !alternateIssuer && i < chain->context.cChain; i++)
            for (j = 0; !alternateIssuer &&
             j < chain->context.rgpChain[i]->cElement - 1; j++)
            {
                PCCERT_CONTEXT subject =
                 chain->context.rgpChain[i]->rgpElement[j]->pCertContext;
                PCCERT_CONTEXT prevIssuer = CertDuplicateCertificateContext(
                 chain->context.rgpChain[i]->rgpElement[j + 1]->pCertContext);
 
                alternateIssuer = CRYPT_GetIssuer(engine, prevIssuer->hCertStore,
                 subject, prevIssuer, flags, &infoStatus);
            }
        if (alternateIssuer)
        {
            i--;
            j--;
            alternate = CRYPT_CopyChainToElement(chain, i, j);
            if (alternate)
            {
                BOOL ret = CRYPT_AddCertToSimpleChain(engine,
                 alternate->context.rgpChain[i], alternateIssuer, infoStatus);
 
                /* CRYPT_AddCertToSimpleChain add-ref's the issuer, so free it
                 * to close the enumeration that found it
                 */
                CertFreeCertificateContext(alternateIssuer);
                if (ret)
                {
                    ret = CRYPT_BuildSimpleChain(engine, alternate->world,
                     flags, alternate->context.rgpChain[i]);
                    if (ret)
                        CRYPT_CheckSimpleChain(engine,
                         alternate->context.rgpChain[i], pTime);
                    CRYPT_CombineTrustStatus(&alternate->context.TrustStatus,
                     &alternate->context.rgpChain[i]->TrustStatus);
                }
                if (!ret)
                {
                    CRYPT_FreeChainContext(alternate);
                    alternate = NULL;
                }
            }
        }
    }
    TRACE("%p\n", alternate);
    return alternate;
}

Referenced by CertGetCertificateChain().

CRYPT_BuildCandidateChainFromCert()

static BOOL CRYPT_BuildCandidateChainFromCert ( CertificateChainEngine *  engine, PCCERT_CONTEXT  cert, LPFILETIME  pTime, HCERTSTORE  hAdditionalStore, DWORD  flags, CertificateChain **  ppChain  )

static

Definition at line 2247 of file chain.c.

{
    PCERT_SIMPLE_CHAIN simpleChain = NULL;
    HCERTSTORE world;
    BOOL ret;
 
    world = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
     CERT_STORE_CREATE_NEW_FLAG, NULL);
    CertAddStoreToCollection(world, engine->hWorld, 0, 0);
    if (hAdditionalStore)
        CertAddStoreToCollection(world, hAdditionalStore, 0, 0);
    /* FIXME: only simple chains are supported for now, as CTLs aren't
     * supported yet.
     */
    if ((ret = CRYPT_GetSimpleChainForCert(engine, world, cert, pTime, flags, &simpleChain)))
    {
        CertificateChain *chain = CryptMemAlloc(sizeof(CertificateChain));
 
        if (chain)
        {
            chain->ref = 1;
            chain->world = world;
            chain->context.cbSize = sizeof(CERT_CHAIN_CONTEXT);
            chain->context.TrustStatus = simpleChain->TrustStatus;
            chain->context.cChain = 1;
            chain->context.rgpChain = CryptMemAlloc(sizeof(PCERT_SIMPLE_CHAIN));
            chain->context.rgpChain[0] = simpleChain;
            chain->context.cLowerQualityChainContext = 0;
            chain->context.rgpLowerQualityChainContext = NULL;
            chain->context.fHasRevocationFreshnessTime = FALSE;
            chain->context.dwRevocationFreshnessTime = 0;
        }
        else
        {
            CRYPT_FreeSimpleChain(simpleChain);
            ret = FALSE;
        }
        *ppChain = chain;
    }
    return ret;
}

Referenced by CertGetCertificateChain().

CRYPT_BuildSimpleChain()

static BOOL CRYPT_BuildSimpleChain ( const CertificateChainEngine *  engine, HCERTSTORE  world, DWORD  flags, PCERT_SIMPLE_CHAIN  chain  )

static

Definition at line 2177 of file chain.c.

{
    BOOL ret = TRUE;
    PCCERT_CONTEXT cert = chain->rgpElement[chain->cElement - 1]->pCertContext;
 
    while (ret && !CRYPT_IsSimpleChainCyclic(chain) &&
     !CRYPT_IsCertificateSelfSigned(cert))
    {
        PCCERT_CONTEXT issuer = CRYPT_GetIssuer(engine, world, cert, NULL, flags,
         &chain->rgpElement[chain->cElement - 1]->TrustStatus.dwInfoStatus);
 
        if (issuer)
        {
            ret = CRYPT_AddCertToSimpleChain(engine, chain, issuer,
             chain->rgpElement[chain->cElement - 1]->TrustStatus.dwInfoStatus);
            /* CRYPT_AddCertToSimpleChain add-ref's the issuer, so free it to
             * close the enumeration that found it
             */
            CertFreeCertificateContext(issuer);
            cert = issuer;
        }
        else
        {
            TRACE_(chain)("Couldn't find issuer, halting chain creation\n");
            chain->TrustStatus.dwErrorStatus |= CERT_TRUST_IS_PARTIAL_CHAIN;
            break;
        }
    }
    return ret;
}

Referenced by CRYPT_BuildAlternateContextFromChain(), and CRYPT_GetSimpleChainForCert().

CRYPT_ChainQuality()

static DWORD CRYPT_ChainQuality ( const CertificateChain *  chain )

static

Definition at line 2524 of file chain.c.

{
    DWORD quality = CHAIN_QUALITY_HIGHEST;
 
    if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
     CERT_TRUST_IS_UNTRUSTED_ROOT))
        quality &= ~CHAIN_QUALITY_TRUSTED_ROOT;
    if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
     CERT_TRUST_INVALID_BASIC_CONSTRAINTS))
        quality &= ~CHAIN_QUALITY_BASIC_CONSTRAINTS;
    if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
     CERT_TRUST_IS_PARTIAL_CHAIN))
        quality &= ~CHAIN_QUALITY_COMPLETE_CHAIN;
    if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
     CERT_TRUST_IS_NOT_TIME_VALID | CERT_TRUST_IS_NOT_TIME_NESTED))
        quality &= ~CHAIN_QUALITY_TIME_VALID;
    if (IS_TRUST_ERROR_SET(&chain->context.TrustStatus,
     CERT_TRUST_IS_NOT_SIGNATURE_VALID))
        quality &= ~CHAIN_QUALITY_SIGNATURE_VALID;
    return quality;
}

Referenced by CRYPT_ChooseHighestQualityChain().

CRYPT_CheckBasicConstraintsForCA()

static BOOL CRYPT_CheckBasicConstraintsForCA ( CertificateChainEngine *  engine, PCCERT_CONTEXT  cert, CERT_BASIC_CONSTRAINTS2_INFO *  chainConstraints, DWORD  remainingCAs, BOOL  isRoot, BOOL *  pathLengthConstraintViolated  )

static

Definition at line 576 of file chain.c.

{
    BOOL validBasicConstraints, implicitCA = FALSE;
    CERT_BASIC_CONSTRAINTS2_INFO constraints;
 
    if (isRoot)
        implicitCA = TRUE;
    else if (cert->pCertInfo->dwVersion == CERT_V1 ||
     cert->pCertInfo->dwVersion == CERT_V2)
    {
        BYTE hash[20];
        DWORD size = sizeof(hash);
 
        if (CertGetCertificateContextProperty(cert, CERT_HASH_PROP_ID,
         hash, &size))
        {
            CRYPT_HASH_BLOB blob = { sizeof(hash), hash };
            PCCERT_CONTEXT localCert = CertFindCertificateInStore(
             engine->hWorld, cert->dwCertEncodingType, 0, CERT_FIND_SHA1_HASH,
             &blob, NULL);
 
            if (localCert)
            {
                CertFreeCertificateContext(localCert);
                implicitCA = TRUE;
            }
        }
    }
    if ((validBasicConstraints = CRYPT_DecodeBasicConstraints(cert,
     &constraints, implicitCA)))
    {
        chainConstraints->fCA = constraints.fCA;
        if (!constraints.fCA)
        {
            TRACE_(chain)("chain element %ld can't be a CA\n", remainingCAs + 1);
            validBasicConstraints = FALSE;
        }
        else if (constraints.fPathLenConstraint)
        {
            /* If the element has path length constraints, they apply to the
             * entire remaining chain.
             */
            if (!chainConstraints->fPathLenConstraint ||
             constraints.dwPathLenConstraint <
             chainConstraints->dwPathLenConstraint)
            {
                TRACE_(chain)("setting path length constraint to %ld\n",
                 chainConstraints->dwPathLenConstraint);
                chainConstraints->fPathLenConstraint = TRUE;
                chainConstraints->dwPathLenConstraint =
                 constraints.dwPathLenConstraint;
            }
        }
    }
    if (chainConstraints->fPathLenConstraint &&
     remainingCAs > chainConstraints->dwPathLenConstraint)
    {
        TRACE_(chain)("remaining CAs %ld exceed max path length %ld\n",
         remainingCAs, chainConstraints->dwPathLenConstraint);
        validBasicConstraints = FALSE;
        *pathLengthConstraintViolated = TRUE;
    }
    return validBasicConstraints;
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_CheckChainNameConstraints()

static void CRYPT_CheckChainNameConstraints ( PCERT_SIMPLE_CHAIN  chain )

static

Definition at line 1275 of file chain.c.

{
    int i, j;
 
    /* Microsoft's implementation appears to violate RFC 3280:  according to
     * MSDN, the various CERT_TRUST_*_NAME_CONSTRAINT errors are set if a CA's
     * name constraint is violated in the end cert.  According to RFC 3280,
     * the constraints should be checked against every subsequent certificate
     * in the chain, not just the end cert.
     * Microsoft's implementation also sets the name constraint errors on the
     * certs whose constraints were violated, not on the certs that violated
     * them.
     * In order to be error-compatible with Microsoft's implementation, while
     * still adhering to RFC 3280, I use a O(n ^ 2) algorithm to check name
     * constraints.
     */
    for (i = chain->cElement - 1; i > 0; i--)
    {
        CERT_NAME_CONSTRAINTS_INFO *nameConstraints;
 
        if ((nameConstraints = CRYPT_GetNameConstraints(
         chain->rgpElement[i]->pCertContext->pCertInfo)))
        {
            if (!CRYPT_IsValidNameConstraint(nameConstraints))
                chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                 CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT;
            else
            {
                for (j = i - 1; j >= 0; j--)
                {
                    DWORD errorStatus = 0;
 
                    /* According to RFC 3280, self-signed certs don't have name
                     * constraints checked unless they're the end cert.
                     */
                    if (j == 0 || !CRYPT_IsCertificateSelfSigned(
                     chain->rgpElement[j]->pCertContext))
                    {
                        CRYPT_CheckNameConstraints(nameConstraints,
                         chain->rgpElement[j]->pCertContext->pCertInfo,
                         &errorStatus);
                        if (errorStatus)
                        {
                            chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                             errorStatus;
                            CRYPT_CombineTrustStatus(&chain->TrustStatus,
                             &chain->rgpElement[i]->TrustStatus);
                        }
                        else
                            chain->rgpElement[i]->TrustStatus.dwInfoStatus |=
                             CERT_TRUST_HAS_VALID_NAME_CONSTRAINTS;
                    }
                }
            }
            LocalFree(nameConstraints);
        }
    }
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_CheckChainPolicies()

static void CRYPT_CheckChainPolicies ( PCERT_SIMPLE_CHAIN  chain )

static

Definition at line 1377 of file chain.c.

{
    int i, j;
 
    for (i = chain->cElement - 1; i > 0; i--)
    {
        CERT_POLICIES_INFO *policies;
 
        if ((policies = CRYPT_GetPolicies(chain->rgpElement[i]->pCertContext)))
        {
            for (j = i - 1; j >= 0; j--)
            {
                DWORD errorStatus = 0;
 
                CRYPT_CheckPolicies(policies,
                 chain->rgpElement[j]->pCertContext->pCertInfo, &errorStatus);
                if (errorStatus)
                {
                    chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                     errorStatus;
                    CRYPT_CombineTrustStatus(&chain->TrustStatus,
                     &chain->rgpElement[i]->TrustStatus);
                }
            }
            LocalFree(policies);
        }
    }
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_CheckNameConstraints()

static void CRYPT_CheckNameConstraints ( const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, const CERT_INFO *  cert, DWORD *  trustErrorStatus  )

static

Definition at line 1192 of file chain.c.

{
    CERT_EXTENSION *ext = get_subject_alt_name_ext(cert);
 
    if (ext)
        compare_alt_name_with_constraints(ext, nameConstraints,
         trustErrorStatus);
    /* Name constraints apply to the subject alternative name as well as the
     * subject name.  From RFC 5280, section 4.2.1.10:
     * "Restrictions apply to the subject distinguished name and apply to
     *  subject alternative names."
     */
    compare_subject_with_constraints(&cert->Subject, nameConstraints,
     trustErrorStatus);
}

Referenced by CRYPT_CheckChainNameConstraints().

CRYPT_CheckPolicies()

static void CRYPT_CheckPolicies ( const CERT_POLICIES_INFO *  policies, CERT_INFO *  cert, DWORD *  errorStatus  )

static

Definition at line 1353 of file chain.c.

{
    DWORD i;
 
    for (i = 0; i < policies->cPolicyInfo; i++)
    {
        /* For now, the only accepted policy identifier is the anyPolicy
         * identifier.
         * FIXME: the policy identifiers should be compared against the
         * cert's certificate policies extension, subject to the policy
         * mappings extension, and the policy constraints extension.
         * See RFC 5280, sections 4.2.1.4, 4.2.1.5, and 4.2.1.11.
         */
        if (strcmp(policies->rgPolicyInfo[i].pszPolicyIdentifier,
         szOID_ANY_CERT_POLICY))
        {
            FIXME("unsupported policy %s\n",
             policies->rgPolicyInfo[i].pszPolicyIdentifier);
            *errorStatus |= CERT_TRUST_INVALID_POLICY_CONSTRAINTS;
        }
    }
}

Referenced by CRYPT_CheckChainPolicies().

CRYPT_CheckRestrictedRoot()

static BOOL CRYPT_CheckRestrictedRoot ( HCERTSTORE  store )

static

Definition at line 89 of file chain.c.

{
    BOOL ret = TRUE;
 
    if (store)
    {
        HCERTSTORE rootStore = CertOpenSystemStoreW(0, L"Root");
        PCCERT_CONTEXT cert = NULL, check;
 
        do {
            cert = CertEnumCertificatesInStore(store, cert);
            if (cert)
            {
                if (!(check = CRYPT_FindCertInStore(rootStore, cert)))
                    ret = FALSE;
                else
                    CertFreeCertificateContext(check);
            }
        } while (ret && cert);
        if (cert)
            CertFreeCertificateContext(cert);
        CertCloseStore(rootStore, 0);
    }
    return ret;
}

Referenced by CertCreateCertificateChainEngine().

CRYPT_CheckRootCert()

static void CRYPT_CheckRootCert ( HCERTSTORE  hRoot, PCERT_CHAIN_ELEMENT  rootElement  )

static

Definition at line 487 of file chain.c.

{
    PCCERT_CONTEXT root = rootElement->pCertContext;
 
    if (!CryptVerifyCertificateSignatureEx(0, root->dwCertEncodingType,
     CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT, (void *)root,
     CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)root, 0, NULL))
    {
        TRACE_(chain)("Last certificate's signature is invalid\n");
        rootElement->TrustStatus.dwErrorStatus |=
         CERT_TRUST_IS_NOT_SIGNATURE_VALID;
    }
    CRYPT_CheckTrustedStatus(hRoot, rootElement);
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_CheckSimpleChain()

static void CRYPT_CheckSimpleChain ( CertificateChainEngine *  engine, PCERT_SIMPLE_CHAIN  chain, LPFILETIME  time  )

static

Definition at line 1875 of file chain.c.

{
    PCERT_CHAIN_ELEMENT rootElement = chain->rgpElement[chain->cElement - 1];
    int i;
    BOOL pathLengthConstraintViolated = FALSE;
    CERT_BASIC_CONSTRAINTS2_INFO constraints = { FALSE, FALSE, 0 };
    DWORD status;
 
    TRACE_(chain)("checking chain with %ld elements for time %s\n",
     chain->cElement, filetime_to_str(time));
    for (i = chain->cElement - 1; i >= 0; i--)
    {
        BOOL isRoot;
 
        if (TRACE_ON(chain))
            dump_element(chain->rgpElement[i]->pCertContext);
        if (i == chain->cElement - 1)
            isRoot = CRYPT_IsCertificateSelfSigned(
             chain->rgpElement[i]->pCertContext);
        else
            isRoot = FALSE;
        if (!CRYPT_IsCertVersionValid(chain->rgpElement[i]->pCertContext))
        {
            /* MS appears to accept certs whose versions don't match their
             * contents, so there isn't an appropriate error code.
             */
            chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
             CERT_TRUST_INVALID_EXTENSION;
        }
        if (CertVerifyTimeValidity(time,
         chain->rgpElement[i]->pCertContext->pCertInfo) != 0)
            chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
             CERT_TRUST_IS_NOT_TIME_VALID;
        if (i != 0)
        {
            /* Check the signature of the cert this issued */
            if (!CryptVerifyCertificateSignatureEx(0, X509_ASN_ENCODING,
             CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT,
             (void *)chain->rgpElement[i - 1]->pCertContext,
             CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT,
             (void *)chain->rgpElement[i]->pCertContext, 0, NULL))
                chain->rgpElement[i - 1]->TrustStatus.dwErrorStatus |=
                 CERT_TRUST_IS_NOT_SIGNATURE_VALID;
            /* Once a path length constraint has been violated, every remaining
             * CA cert's basic constraints is considered invalid.
             */
            if (pathLengthConstraintViolated)
                chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                 CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
            else if (!CRYPT_CheckBasicConstraintsForCA(engine,
             chain->rgpElement[i]->pCertContext, &constraints, i - 1, isRoot,
             &pathLengthConstraintViolated))
                chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                 CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
            else if (constraints.fPathLenConstraint &&
             constraints.dwPathLenConstraint)
            {
                /* This one's valid - decrement max length */
                constraints.dwPathLenConstraint--;
            }
        }
        else
        {
            /* Check whether end cert has a basic constraints extension */
            if (!CRYPT_DecodeBasicConstraints(
             chain->rgpElement[i]->pCertContext, &constraints, FALSE))
                chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
                 CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
        }
        if (!CRYPT_KeyUsageValid(engine, chain->rgpElement[i]->pCertContext,
         isRoot, constraints.fCA, i))
            chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
             CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
        if (CRYPT_IsSimpleChainCyclic(chain))
        {
            /* If the chain is cyclic, then the path length constraints
             * are violated, because the chain is infinitely long.
             */
            pathLengthConstraintViolated = TRUE;
            chain->TrustStatus.dwErrorStatus |=
             CERT_TRUST_IS_PARTIAL_CHAIN |
             CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
        }
        /* Check whether every critical extension is supported */
        if (!CRYPT_CriticalExtensionsSupported(
         chain->rgpElement[i]->pCertContext))
            chain->rgpElement[i]->TrustStatus.dwErrorStatus |=
             CERT_TRUST_INVALID_EXTENSION |
             CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT;
        CRYPT_CombineTrustStatus(&chain->TrustStatus,
         &chain->rgpElement[i]->TrustStatus);
    }
    CRYPT_CheckChainNameConstraints(chain);
    CRYPT_CheckChainPolicies(chain);
    if ((status = CRYPT_IsCertificateSelfSigned(rootElement->pCertContext)))
    {
        rootElement->TrustStatus.dwInfoStatus |= status;
        CRYPT_CheckRootCert(engine->hRoot, rootElement);
    }
    CRYPT_CombineTrustStatus(&chain->TrustStatus, &rootElement->TrustStatus);
}

Referenced by CRYPT_BuildAlternateContextFromChain(), and CRYPT_GetSimpleChainForCert().

CRYPT_CheckSimpleChainForCycles()

static void CRYPT_CheckSimpleChainForCycles ( PCERT_SIMPLE_CHAIN  chain )

static

Definition at line 379 of file chain.c.

{
    DWORD i, j, cyclicCertIndex = 0;
 
    /* O(n^2) - I don't think there's a faster way */
    for (i = 0; !cyclicCertIndex && i < chain->cElement; i++)
        for (j = i + 1; !cyclicCertIndex && j < chain->cElement; j++)
            if (CertCompareCertificate(X509_ASN_ENCODING,
             chain->rgpElement[i]->pCertContext->pCertInfo,
             chain->rgpElement[j]->pCertContext->pCertInfo))
                cyclicCertIndex = j;
    if (cyclicCertIndex)
    {
        chain->rgpElement[cyclicCertIndex]->TrustStatus.dwErrorStatus
         |= CERT_TRUST_IS_CYCLIC | CERT_TRUST_INVALID_BASIC_CONSTRAINTS;
        /* Release remaining certs */
        for (i = cyclicCertIndex + 1; i < chain->cElement; i++)
            CRYPT_FreeChainElement(chain->rgpElement[i]);
        /* Truncate chain */
        chain->cElement = cyclicCertIndex + 1;
    }
}

Referenced by CRYPT_AddCertToSimpleChain().

CRYPT_CheckTrustedStatus()

static void CRYPT_CheckTrustedStatus ( HCERTSTORE  hRoot, PCERT_CHAIN_ELEMENT  rootElement  )

static

Definition at line 474 of file chain.c.

{
    PCCERT_CONTEXT trustedRoot = CRYPT_FindCertInStore(hRoot,
     rootElement->pCertContext);
 
    if (!trustedRoot)
        rootElement->TrustStatus.dwErrorStatus |=
         CERT_TRUST_IS_UNTRUSTED_ROOT;
    else
        CertFreeCertificateContext(trustedRoot);
}

Referenced by CRYPT_CheckRootCert().

CRYPT_CheckUsages()

static void CRYPT_CheckUsages ( PCERT_CHAIN_CONTEXT  chain, const CERT_CHAIN_PARA *  pChainPara  )

static

Definition at line 2741 of file chain.c.

{
    if (pChainPara->cbSize >= sizeof(CERT_CHAIN_PARA_NO_EXTRA_FIELDS) &&
     pChainPara->RequestedUsage.Usage.cUsageIdentifier)
    {
        PCCERT_CONTEXT endCert;
        PCERT_EXTENSION ext;
        BOOL validForUsage;
 
        /* A chain, if created, always includes the end certificate */
        endCert = chain->rgpChain[0]->rgpElement[0]->pCertContext;
        /* The extended key usage extension specifies how a certificate's
         * public key may be used.  From RFC 5280, section 4.2.1.12:
         * "This extension indicates one or more purposes for which the
         *  certified public key may be used, in addition to or in place of the
         *  basic purposes indicated in the key usage extension."
         * If the extension is present, it only satisfies the requested usage
         * if that usage is included in the extension:
         * "If the extension is present, then the certificate MUST only be used
         *  for one of the purposes indicated."
         * There is also the special anyExtendedKeyUsage OID, but it doesn't
         * have to be respected:
         * "Applications that require the presence of a particular purpose
         *  MAY reject certificates that include the anyExtendedKeyUsage OID
         *  but not the particular OID expected for the application."
         * For now, I'm being more conservative and ignoring the presence of
         * the anyExtendedKeyUsage OID.
         */
        if ((ext = CertFindExtension(szOID_ENHANCED_KEY_USAGE,
         endCert->pCertInfo->cExtension, endCert->pCertInfo->rgExtension)))
        {
            const CERT_ENHKEY_USAGE *requestedUsage =
             &pChainPara->RequestedUsage.Usage;
            CERT_ENHKEY_USAGE *usage;
            DWORD size;
 
            if (CryptDecodeObjectEx(X509_ASN_ENCODING,
             X509_ENHANCED_KEY_USAGE, ext->Value.pbData, ext->Value.cbData,
             CRYPT_DECODE_ALLOC_FLAG, NULL, &usage, &size))
            {
                if (pChainPara->RequestedUsage.dwType == USAGE_MATCH_TYPE_AND)
                {
                    DWORD i, j;
 
                    /* For AND matches, all usages must be present */
                    validForUsage = TRUE;
                    for (i = 0; validForUsage &&
                     i < requestedUsage->cUsageIdentifier; i++)
                    {
                        BOOL match = FALSE;
 
                        for (j = 0; !match && j < usage->cUsageIdentifier; j++)
                            match = !strcmp(usage->rgpszUsageIdentifier[j],
                             requestedUsage->rgpszUsageIdentifier[i]);
                        if (!match)
                            validForUsage = FALSE;
                    }
                }
                else
                {
                    DWORD i, j;
 
                    /* For OR matches, any matching usage suffices */
                    validForUsage = FALSE;
                    for (i = 0; !validForUsage &&
                     i < requestedUsage->cUsageIdentifier; i++)
                    {
                        for (j = 0; !validForUsage &&
                         j < usage->cUsageIdentifier; j++)
                            validForUsage =
                             !strcmp(usage->rgpszUsageIdentifier[j],
                             requestedUsage->rgpszUsageIdentifier[i]);
                    }
                }
                LocalFree(usage);
            }
            else
                validForUsage = FALSE;
        }
        else
        {
            /* If the extension isn't present, any interpretation is valid:
             * "Certificate using applications MAY require that the extended
             *  key usage extension be present and that a particular purpose
             *  be indicated in order for the certificate to be acceptable to
             *  that application."
             * Not all web sites include the extended key usage extension, so
             * accept chains without it.
             */
            TRACE_(chain)("requested usage from certificate with no usages\n");
            validForUsage = TRUE;
        }
        if (!validForUsage)
        {
            chain->TrustStatus.dwErrorStatus |=
             CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
            chain->rgpChain[0]->rgpElement[0]->TrustStatus.dwErrorStatus |=
             CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
        }
    }
    if (pChainPara->cbSize >= sizeof(CERT_CHAIN_PARA) &&
     pChainPara->RequestedIssuancePolicy.Usage.cUsageIdentifier)
        FIXME("unimplemented for RequestedIssuancePolicy\n");
}

Referenced by CertGetCertificateChain().

CRYPT_ChooseHighestQualityChain()

static CertificateChain * CRYPT_ChooseHighestQualityChain ( CertificateChain *  chain )

static

Definition at line 2550 of file chain.c.

{
    DWORD i;
 
    /* There are always only two chains being considered:  chain, and an
     * alternate at chain->rgpLowerQualityChainContext[i].  If the alternate
     * has a higher quality than chain, the alternate gets assigned the lower
     * quality contexts, with chain taking the alternate's place among the
     * lower quality contexts.
     */
    for (i = 0; i < chain->context.cLowerQualityChainContext; i++)
    {
        CertificateChain *alternate =
         (CertificateChain*)chain->context.rgpLowerQualityChainContext[i];
 
        if (CRYPT_ChainQuality(alternate) > CRYPT_ChainQuality(chain))
        {
            alternate->context.cLowerQualityChainContext =
             chain->context.cLowerQualityChainContext;
            alternate->context.rgpLowerQualityChainContext =
             chain->context.rgpLowerQualityChainContext;
            alternate->context.rgpLowerQualityChainContext[i] =
             (PCCERT_CHAIN_CONTEXT)chain;
            chain->context.cLowerQualityChainContext = 0;
            chain->context.rgpLowerQualityChainContext = NULL;
            chain = alternate;
        }
    }
    return chain;
}

Referenced by CertGetCertificateChain().

CRYPT_CloseStores()

static void CRYPT_CloseStores ( DWORD  cStores, HCERTSTORE *  stores  )

inlinestatic

Definition at line 63 of file chain.c.

{
    DWORD i;
 
    for (i = 0; i < cStores; i++)
        CertCloseStore(stores[i], 0);
}

Referenced by CRYPT_CreateChainEngine().

CRYPT_CombineTrustStatus()

static void CRYPT_CombineTrustStatus ( CERT_TRUST_STATUS *  chainStatus, const CERT_TRUST_STATUS *  elementStatus  )

inlinestatic

Definition at line 412 of file chain.c.

{
    /* Any error that applies to an element also applies to a chain.. */
    chainStatus->dwErrorStatus |= elementStatus->dwErrorStatus;
    /* but the bottom nibble of an element's info status doesn't apply to the
     * chain.
     */
    chainStatus->dwInfoStatus |= (elementStatus->dwInfoStatus & 0xfffffff0);
}

Referenced by CRYPT_AddCertToSimpleChain(), CRYPT_BuildAlternateContextFromChain(), CRYPT_CheckChainNameConstraints(), CRYPT_CheckChainPolicies(), and CRYPT_CheckSimpleChain().

CRYPT_CopyChainToElement()

static CertificateChain * CRYPT_CopyChainToElement ( CertificateChain *  chain, DWORD  iChain, DWORD  iElement  )

static

Definition at line 2373 of file chain.c.

{
    CertificateChain *copy = CryptMemAlloc(sizeof(CertificateChain));
 
    if (copy)
    {
        copy->ref = 1;
        copy->world = CertDuplicateStore(chain->world);
        copy->context.cbSize = sizeof(CERT_CHAIN_CONTEXT);
        /* Leave the trust status of the copied chain unset, it'll get
         * rechecked after the new chain is done.
         */
        memset(&copy->context.TrustStatus, 0, sizeof(CERT_TRUST_STATUS));
        copy->context.cLowerQualityChainContext = 0;
        copy->context.rgpLowerQualityChainContext = NULL;
        copy->context.fHasRevocationFreshnessTime = FALSE;
        copy->context.dwRevocationFreshnessTime = 0;
        copy->context.rgpChain = CryptMemAlloc(
         (iChain + 1) * sizeof(PCERT_SIMPLE_CHAIN));
        if (copy->context.rgpChain)
        {
            BOOL ret = TRUE;
            DWORD i;
 
            memset(copy->context.rgpChain, 0,
             (iChain + 1) * sizeof(PCERT_SIMPLE_CHAIN));
            if (iChain)
            {
                for (i = 0; ret && iChain && i < iChain - 1; i++)
                {
                    copy->context.rgpChain[i] =
                     CRYPT_CopySimpleChainToElement(chain->context.rgpChain[i],
                     chain->context.rgpChain[i]->cElement - 1);
                    if (!copy->context.rgpChain[i])
                        ret = FALSE;
                }
            }
            else
                i = 0;
            if (ret)
            {
                copy->context.rgpChain[i] =
                 CRYPT_CopySimpleChainToElement(chain->context.rgpChain[i],
                 iElement);
                if (!copy->context.rgpChain[i])
                    ret = FALSE;
            }
            if (!ret)
            {
                CRYPT_FreeChainContext(copy);
                copy = NULL;
            }
            else
                copy->context.cChain = iChain + 1;
        }
        else
        {
            CryptMemFree(copy);
            copy = NULL;
        }
    }
    return copy;
}

Referenced by CRYPT_BuildAlternateContextFromChain().

CRYPT_CopySimpleChainToElement()

static PCERT_SIMPLE_CHAIN CRYPT_CopySimpleChainToElement ( const CERT_SIMPLE_CHAIN *  chain, DWORD  iElement  )

static

Definition at line 2292 of file chain.c.

{
    PCERT_SIMPLE_CHAIN copy = CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN));
 
    if (copy)
    {
        memset(copy, 0, sizeof(CERT_SIMPLE_CHAIN));
        copy->cbSize = sizeof(CERT_SIMPLE_CHAIN);
        copy->rgpElement =
         CryptMemAlloc((iElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
        if (copy->rgpElement)
        {
            DWORD i;
            BOOL ret = TRUE;
 
            memset(copy->rgpElement, 0,
             (iElement + 1) * sizeof(PCERT_CHAIN_ELEMENT));
            for (i = 0; ret && i <= iElement; i++)
            {
                PCERT_CHAIN_ELEMENT element =
                 CryptMemAlloc(sizeof(CERT_CHAIN_ELEMENT));
 
                if (element)
                {
                    *element = *chain->rgpElement[i];
                    element->pCertContext = CertDuplicateCertificateContext(
                     chain->rgpElement[i]->pCertContext);
                    /* Reset the trust status of the copied element, it'll get
                     * rechecked after the new chain is done.
                     */
                    memset(&element->TrustStatus, 0, sizeof(CERT_TRUST_STATUS));
                    copy->rgpElement[copy->cElement++] = element;
                }
                else
                    ret = FALSE;
            }
            if (!ret)
            {
                for (i = 0; i <= iElement; i++)
                    CryptMemFree(copy->rgpElement[i]);
                CryptMemFree(copy->rgpElement);
                CryptMemFree(copy);
                copy = NULL;
            }
        }
        else
        {
            CryptMemFree(copy);
            copy = NULL;
        }
    }
    return copy;
}

Referenced by CRYPT_CopyChainToElement().

CRYPT_CreateChainEngine()

HCERTCHAINENGINE CRYPT_CreateChainEngine	(	HCERTSTORE	root,
		DWORD	system_store,
		const CERT_CHAIN_ENGINE_CONFIG *	config
	)

Definition at line 115 of file chain.c.

{
    CertificateChainEngine *engine;
    HCERTSTORE worldStores[4];
 
    if(!root) {
        if(config->cbSize >= sizeof(CERT_CHAIN_ENGINE_CONFIG) && config->hExclusiveRoot)
            root = CertDuplicateStore(config->hExclusiveRoot);
        else if (config->hRestrictedRoot)
            root = CertDuplicateStore(config->hRestrictedRoot);
        else
            root = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, L"Root");
        if(!root)
            return NULL;
    }
 
    engine = CryptMemAlloc(sizeof(CertificateChainEngine));
    if(!engine) {
        CertCloseStore(root, 0);
        return NULL;
    }
 
    engine->ref = 1;
    engine->hRoot = root;
    engine->hWorld = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL);
    worldStores[0] = CertDuplicateStore(engine->hRoot);
    worldStores[1] = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, L"CA");
    worldStores[2] = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, L"My");
    worldStores[3] = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, L"Trust");
 
    CRYPT_AddStoresToCollection(engine->hWorld, ARRAY_SIZE(worldStores), worldStores);
    CRYPT_AddStoresToCollection(engine->hWorld, config->cAdditionalStore, config->rghAdditionalStore);
    CRYPT_CloseStores(ARRAY_SIZE(worldStores), worldStores);
 
    engine->dwFlags = config->dwFlags;
    engine->dwUrlRetrievalTimeout = config->dwUrlRetrievalTimeout;
    engine->MaximumCachedCertificates = config->MaximumCachedCertificates;
    if(config->CycleDetectionModulus)
        engine->CycleDetectionModulus = config->CycleDetectionModulus;
    else
        engine->CycleDetectionModulus = DEFAULT_CYCLE_MODULUS;
 
    return engine;
}

Referenced by CertCreateCertificateChainEngine(), check_and_store_certs(), and get_chain_engine().

CRYPT_CriticalExtensionsSupported()

static BOOL CRYPT_CriticalExtensionsSupported ( PCCERT_CONTEXT  cert )

static

Definition at line 1798 of file chain.c.

{
    BOOL ret = TRUE;
    DWORD i;
 
    for (i = 0; ret && i < cert->pCertInfo->cExtension; i++)
    {
        if (cert->pCertInfo->rgExtension[i].fCritical)
        {
            LPCSTR oid = cert->pCertInfo->rgExtension[i].pszObjId;
 
            if (!strcmp(oid, szOID_BASIC_CONSTRAINTS))
                ret = TRUE;
            else if (!strcmp(oid, szOID_BASIC_CONSTRAINTS2))
                ret = TRUE;
            else if (!strcmp(oid, szOID_NAME_CONSTRAINTS))
                ret = TRUE;
            else if (!strcmp(oid, szOID_KEY_USAGE))
                ret = TRUE;
            else if (!strcmp(oid, szOID_SUBJECT_ALT_NAME))
                ret = TRUE;
            else if (!strcmp(oid, szOID_SUBJECT_ALT_NAME2))
                ret = TRUE;
            else if (!strcmp(oid, szOID_CERT_POLICIES))
                ret = TRUE;
            else if (!strcmp(oid, szOID_ENHANCED_KEY_USAGE))
                ret = TRUE;
            else
            {
                FIXME("unsupported critical extension %s\n",
                 debugstr_a(oid));
                ret = FALSE;
            }
        }
    }
    return ret;
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_DecodeBasicConstraints()

static BOOL CRYPT_DecodeBasicConstraints ( PCCERT_CONTEXT  cert, CERT_BASIC_CONSTRAINTS2_INFO *  constraints, BOOL  defaultIfNotSpecified  )

static

Definition at line 509 of file chain.c.

{
    BOOL ret = TRUE;
    PCERT_EXTENSION ext = CertFindExtension(szOID_BASIC_CONSTRAINTS,
     cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension);
 
    constraints->fPathLenConstraint = FALSE;
    if (ext)
    {
        CERT_BASIC_CONSTRAINTS_INFO *info;
        DWORD size = 0;
 
        ret = CryptDecodeObjectEx(X509_ASN_ENCODING, szOID_BASIC_CONSTRAINTS,
         ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG,
         NULL, &info, &size);
        if (ret)
        {
            if (info->SubjectType.cbData == 1)
                constraints->fCA =
                 info->SubjectType.pbData[0] & CERT_CA_SUBJECT_FLAG;
            LocalFree(info);
        }
    }
    else
    {
        ext = CertFindExtension(szOID_BASIC_CONSTRAINTS2,
         cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension);
        if (ext)
        {
            DWORD size = sizeof(CERT_BASIC_CONSTRAINTS2_INFO);
 
            ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
             szOID_BASIC_CONSTRAINTS2, ext->Value.pbData, ext->Value.cbData,
             0, NULL, constraints, &size);
        }
        else
            constraints->fCA = defaultIfNotSpecified;
    }
    return ret;
}

Referenced by CRYPT_CheckBasicConstraintsForCA(), and CRYPT_CheckSimpleChain().

CRYPT_FindCertInStore()

static PCCERT_CONTEXT CRYPT_FindCertInStore ( HCERTSTORE  store, PCCERT_CONTEXT  cert  )

static

Definition at line 72 of file chain.c.

{
    PCCERT_CONTEXT matching = NULL;
    BYTE hash[20];
    DWORD size = sizeof(hash);
 
    if (CertGetCertificateContextProperty(cert, CERT_HASH_PROP_ID, hash, &size))
    {
        CRYPT_HASH_BLOB blob = { sizeof(hash), hash };
 
        matching = CertFindCertificateInStore(store, cert->dwCertEncodingType,
         0, CERT_FIND_SHA1_HASH, &blob, NULL);
    }
    return matching;
}

Referenced by CRYPT_CheckRestrictedRoot(), and CRYPT_CheckTrustedStatus().

CRYPT_FindIssuer()

static PCCERT_CONTEXT CRYPT_FindIssuer ( const CertificateChainEngine *  engine, const CERT_CONTEXT *  cert, HCERTSTORE  store, DWORD  type, void *  para, DWORD  flags, PCCERT_CONTEXT  prev_issuer  )

static

Definition at line 1978 of file chain.c.

{
    CRYPT_URL_ARRAY *urls;
    PCCERT_CONTEXT issuer;
    DWORD size;
    BOOL res;
 
    issuer = CertFindCertificateInStore(store, cert->dwCertEncodingType, 0, type, para, prev_issuer);
    if(issuer) {
        TRACE("Found in store %p\n", issuer);
        return issuer;
    }
 
    /* FIXME: For alternate issuers, we don't search world store nor try to retrieve issuer from URL.
     * This needs more tests.
     */
    if(prev_issuer)
        return NULL;
 
    if(engine->hWorld) {
        issuer = CertFindCertificateInStore(engine->hWorld, cert->dwCertEncodingType, 0, type, para, NULL);
        if(issuer) {
            TRACE("Found in world %p\n", issuer);
            return issuer;
        }
    }
 
    res = CryptGetObjectUrl(URL_OID_CERTIFICATE_ISSUER, (void*)cert, 0, NULL, &size, NULL, NULL, NULL);
    if(!res)
        return NULL;
 
    urls = CryptMemAlloc(size);
    if(!urls)
        return NULL;
 
    res = CryptGetObjectUrl(URL_OID_CERTIFICATE_ISSUER, (void*)cert, 0, urls, &size, NULL, NULL, NULL);
    if(res)
    {
        CERT_CONTEXT *new_cert;
        HCERTSTORE new_store;
        unsigned i;
 
        for(i=0; i < urls->cUrl; i++)
        {
            TRACE("Trying URL %s\n", debugstr_w(urls->rgwszUrl[i]));
 
            res = CryptRetrieveObjectByUrlW(urls->rgwszUrl[i], CONTEXT_OID_CERTIFICATE,
             (flags & CERT_CHAIN_CACHE_ONLY_URL_RETRIEVAL) ? CRYPT_CACHE_ONLY_RETRIEVAL : CRYPT_AIA_RETRIEVAL,
             0, (void**)&new_cert, NULL, NULL, NULL, NULL);
            if(!res)
            {
                TRACE("CryptRetrieveObjectByUrlW failed: %lu\n", GetLastError());
                continue;
            }
 
            /* FIXME: Use new_cert->hCertStore once cert ref count bug is fixed. */
            new_store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL);
            CertAddCertificateContextToStore(new_store, new_cert, CERT_STORE_ADD_NEW, NULL);
            issuer = CertFindCertificateInStore(new_store, cert->dwCertEncodingType, 0, type, para, NULL);
            CertFreeCertificateContext(new_cert);
            CertCloseStore(new_store, 0);
            if(issuer)
            {
                TRACE("Found downloaded issuer %p\n", issuer);
                break;
            }
        }
    }
 
    CryptMemFree(urls);
    return issuer;
}

Referenced by CRYPT_GetIssuer().

CRYPT_FindIthElementInChain()

static PCERT_CHAIN_ELEMENT CRYPT_FindIthElementInChain ( const CERT_CHAIN_CONTEXT *  chain, DWORD  i  )

static

Definition at line 2607 of file chain.c.

{
    DWORD j, iElement;
    PCERT_CHAIN_ELEMENT element = NULL;
 
    for (j = 0, iElement = 0; !element && j < chain->cChain; j++)
    {
        if (iElement + chain->rgpChain[j]->cElement < i)
            iElement += chain->rgpChain[j]->cElement;
        else
            element = chain->rgpChain[j]->rgpElement[i - iElement];
    }
    return element;
}

Referenced by CRYPT_VerifyChainRevocation().

CRYPT_FreeChainContext()

static void CRYPT_FreeChainContext ( CertificateChain *  chain )

static

Definition at line 2358 of file chain.c.

{
    DWORD i;
 
    CRYPT_FreeLowerQualityChains(chain);
    for (i = 0; i < chain->context.cChain; i++)
        CRYPT_FreeSimpleChain(chain->context.rgpChain[i]);
    CryptMemFree(chain->context.rgpChain);
    CertCloseStore(chain->world, 0);
    CryptMemFree(chain);
}

Referenced by CertFreeCertificateChain(), CRYPT_BuildAlternateContextFromChain(), and CRYPT_CopyChainToElement().

CRYPT_FreeChainElement()

static void CRYPT_FreeChainElement ( PCERT_CHAIN_ELEMENT  element )

static

Definition at line 373 of file chain.c.

{
    CertFreeCertificateContext(element->pCertContext);
    CryptMemFree(element);
}

Referenced by CRYPT_CheckSimpleChainForCycles(), and CRYPT_FreeSimpleChain().

CRYPT_FreeLowerQualityChains()

static void CRYPT_FreeLowerQualityChains ( CertificateChain *  chain )

static

Definition at line 2347 of file chain.c.

{
    DWORD i;
 
    for (i = 0; i < chain->context.cLowerQualityChainContext; i++)
        CertFreeCertificateChain(chain->context.rgpLowerQualityChainContext[i]);
    CryptMemFree(chain->context.rgpLowerQualityChainContext);
    chain->context.cLowerQualityChainContext = 0;
    chain->context.rgpLowerQualityChainContext = NULL;
}

Referenced by CertGetCertificateChain(), and CRYPT_FreeChainContext().

CRYPT_FreeSimpleChain()

static void CRYPT_FreeSimpleChain ( PCERT_SIMPLE_CHAIN  chain )

static

Definition at line 464 of file chain.c.

{
    DWORD i;
 
    for (i = 0; i < chain->cElement; i++)
        CRYPT_FreeChainElement(chain->rgpElement[i]);
    CryptMemFree(chain->rgpElement);
    CryptMemFree(chain);
}

Referenced by CRYPT_BuildCandidateChainFromCert(), CRYPT_FreeChainContext(), and CRYPT_GetSimpleChainForCert().

CRYPT_GetIssuer()

static PCCERT_CONTEXT CRYPT_GetIssuer ( const CertificateChainEngine *  engine, HCERTSTORE  store, PCCERT_CONTEXT  subject, PCCERT_CONTEXT  prevIssuer, DWORD  flags, DWORD *  infoStatus  )

static

Definition at line 2052 of file chain.c.

{
    PCCERT_CONTEXT issuer = NULL;
    PCERT_EXTENSION ext;
    DWORD size;
 
    *infoStatus = 0;
    if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER,
     subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
    {
        CERT_AUTHORITY_KEY_ID_INFO *info;
        BOOL ret;
 
        ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
         X509_AUTHORITY_KEY_ID, ext->Value.pbData, ext->Value.cbData,
         CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
         &info, &size);
        if (ret)
        {
            CERT_ID id;
 
            if (info->CertIssuer.cbData && info->CertSerialNumber.cbData)
            {
                id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
                memcpy(&id.IssuerSerialNumber.Issuer, &info->CertIssuer,
                 sizeof(CERT_NAME_BLOB));
                memcpy(&id.IssuerSerialNumber.SerialNumber,
                 &info->CertSerialNumber, sizeof(CRYPT_INTEGER_BLOB));
 
                issuer = CRYPT_FindIssuer(engine, subject, store, CERT_FIND_CERT_ID, &id, flags, prevIssuer);
                if (issuer)
                {
                    TRACE_(chain)("issuer found by issuer/serial number\n");
                    *infoStatus = CERT_TRUST_HAS_EXACT_MATCH_ISSUER;
                }
            }
            else if (info->KeyId.cbData)
            {
                id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
 
                memcpy(&id.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
                issuer = CRYPT_FindIssuer(engine, subject, store, CERT_FIND_CERT_ID, &id, flags, prevIssuer);
                if (issuer)
                {
                    TRACE_(chain)("issuer found by key id\n");
                    *infoStatus = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
                }
            }
            LocalFree(info);
        }
    }
    else if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2,
     subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
    {
        CERT_AUTHORITY_KEY_ID2_INFO *info;
        BOOL ret;
 
        ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
         X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
         CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
         &info, &size);
        if (ret)
        {
            CERT_ID id;
 
            if (info->AuthorityCertIssuer.cAltEntry &&
             info->AuthorityCertSerialNumber.cbData)
            {
                PCERT_ALT_NAME_ENTRY directoryName = NULL;
                DWORD i;
 
                for (i = 0; !directoryName &&
                 i < info->AuthorityCertIssuer.cAltEntry; i++)
                    if (info->AuthorityCertIssuer.rgAltEntry[i].dwAltNameChoice
                     == CERT_ALT_NAME_DIRECTORY_NAME)
                        directoryName =
                         &info->AuthorityCertIssuer.rgAltEntry[i];
                if (directoryName)
                {
                    id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
                    memcpy(&id.IssuerSerialNumber.Issuer,
                     &directoryName->DirectoryName, sizeof(CERT_NAME_BLOB));
                    memcpy(&id.IssuerSerialNumber.SerialNumber,
                     &info->AuthorityCertSerialNumber,
                     sizeof(CRYPT_INTEGER_BLOB));
 
                    issuer = CRYPT_FindIssuer(engine, subject, store, CERT_FIND_CERT_ID, &id, flags, prevIssuer);
                    if (issuer)
                    {
                        TRACE_(chain)("issuer found by directory name\n");
                        *infoStatus = CERT_TRUST_HAS_EXACT_MATCH_ISSUER;
                    }
                }
                else
                    FIXME("no supported name type in authority key id2\n");
            }
            else if (info->KeyId.cbData)
            {
                id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
                memcpy(&id.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
                issuer = CRYPT_FindIssuer(engine, subject, store, CERT_FIND_CERT_ID, &id, flags, prevIssuer);
                if (issuer)
                {
                    TRACE_(chain)("issuer found by key id\n");
                    *infoStatus = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
                }
            }
            LocalFree(info);
        }
    }
    else
    {
        issuer = CRYPT_FindIssuer(engine, subject, store, CERT_FIND_SUBJECT_NAME,
         &subject->pCertInfo->Issuer, flags, prevIssuer);
        TRACE_(chain)("issuer found by name\n");
        *infoStatus = CERT_TRUST_HAS_NAME_MATCH_ISSUER;
    }
    return issuer;
}

Referenced by CRYPT_BuildAlternateContextFromChain(), and CRYPT_BuildSimpleChain().

CRYPT_GetNameConstraints()

static CERT_NAME_CONSTRAINTS_INFO * CRYPT_GetNameConstraints ( CERT_INFO *  cert )

static

Definition at line 1211 of file chain.c.

{
    CERT_NAME_CONSTRAINTS_INFO *info = NULL;
 
    CERT_EXTENSION *ext;
 
    if ((ext = CertFindExtension(szOID_NAME_CONSTRAINTS, cert->cExtension,
     cert->rgExtension)))
    {
        DWORD size;
 
        CryptDecodeObjectEx(X509_ASN_ENCODING, X509_NAME_CONSTRAINTS,
         ext->Value.pbData, ext->Value.cbData,
         CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL, &info,
         &size);
    }
    return info;
}

Referenced by CRYPT_CheckChainNameConstraints().

CRYPT_GetPolicies()

static CERT_POLICIES_INFO * CRYPT_GetPolicies ( PCCERT_CONTEXT  cert )

static

Definition at line 1335 of file chain.c.

{
    PCERT_EXTENSION ext;
    CERT_POLICIES_INFO *policies = NULL;
 
    ext = CertFindExtension(szOID_KEY_USAGE, cert->pCertInfo->cExtension,
     cert->pCertInfo->rgExtension);
    if (ext)
    {
        DWORD size;
 
        CryptDecodeObjectEx(X509_ASN_ENCODING, X509_CERT_POLICIES,
         ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL,
         &policies, &size);
    }
    return policies;
}

Referenced by CRYPT_CheckChainPolicies().

CRYPT_GetSimpleChainForCert()

static BOOL CRYPT_GetSimpleChainForCert ( CertificateChainEngine *  engine, HCERTSTORE  world, PCCERT_CONTEXT  cert, LPFILETIME  pTime, DWORD  flags, PCERT_SIMPLE_CHAIN *  ppChain  )

static

Definition at line 2216 of file chain.c.

{
    BOOL ret = FALSE;
    PCERT_SIMPLE_CHAIN chain;
 
    TRACE("(%p, %p, %p, %s)\n", engine, world, cert, debugstr_filetime(pTime));
 
    chain = CryptMemAlloc(sizeof(CERT_SIMPLE_CHAIN));
    if (chain)
    {
        memset(chain, 0, sizeof(CERT_SIMPLE_CHAIN));
        chain->cbSize = sizeof(CERT_SIMPLE_CHAIN);
        ret = CRYPT_AddCertToSimpleChain(engine, chain, cert, 0);
        if (ret)
        {
            ret = CRYPT_BuildSimpleChain(engine, world, flags, chain);
            if (ret)
                CRYPT_CheckSimpleChain(engine, chain, pTime);
        }
        if (!ret)
        {
            CRYPT_FreeSimpleChain(chain);
            chain = NULL;
        }
        *ppChain = chain;
    }
    return ret;
}

Referenced by CRYPT_BuildCandidateChainFromCert().

CRYPT_IsCertificateSelfSigned()

DWORD CRYPT_IsCertificateSelfSigned

(

const CERT_CONTEXT *

cert

)

Definition at line 264 of file chain.c.

{
    DWORD size, status = 0;
    PCERT_EXTENSION ext;
    BOOL ret;
 
    if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2,
     cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension)))
    {
        CERT_AUTHORITY_KEY_ID2_INFO *info;
 
        ret = CryptDecodeObjectEx(cert->dwCertEncodingType,
         X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
         CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
         &info, &size);
        if (ret)
        {
            if (info->AuthorityCertIssuer.cAltEntry &&
             info->AuthorityCertSerialNumber.cbData)
            {
                PCERT_ALT_NAME_ENTRY directoryName = NULL;
                DWORD i;
 
                for (i = 0; !directoryName &&
                 i < info->AuthorityCertIssuer.cAltEntry; i++)
                    if (info->AuthorityCertIssuer.rgAltEntry[i].dwAltNameChoice
                     == CERT_ALT_NAME_DIRECTORY_NAME)
                        directoryName =
                         &info->AuthorityCertIssuer.rgAltEntry[i];
                if (directoryName)
                {
                    if (CertCompareCertificateName(cert->dwCertEncodingType, &directoryName->DirectoryName, &cert->pCertInfo->Issuer)
                            && CertCompareIntegerBlob(&info->AuthorityCertSerialNumber, &cert->pCertInfo->SerialNumber))
                        status = CERT_TRUST_HAS_NAME_MATCH_ISSUER;
                }
                else
                {
                    FIXME("no supported name type in authority key id2\n");
                    ret = FALSE;
                }
            }
            else if (info->KeyId.cbData)
            {
                ret = CertGetCertificateContextProperty(cert,
                 CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
                if (ret && size == info->KeyId.cbData)
                {
                    LPBYTE buf = CryptMemAlloc(size);
 
                    if (buf)
                    {
                        CertGetCertificateContextProperty(cert, CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
                        if (!memcmp(buf, info->KeyId.pbData, size))
                            status = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
                        CryptMemFree(buf);
                    }
                }
            }
            LocalFree(info);
        }
    }
    else if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER,
     cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension)))
    {
        CERT_AUTHORITY_KEY_ID_INFO *info;
 
        ret = CryptDecodeObjectEx(cert->dwCertEncodingType,
         X509_AUTHORITY_KEY_ID, ext->Value.pbData, ext->Value.cbData,
         CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
         &info, &size);
        if (ret)
        {
            if (info->CertIssuer.cbData && info->CertSerialNumber.cbData)
            {
                if (CertCompareCertificateName(cert->dwCertEncodingType, &info->CertIssuer, &cert->pCertInfo->Issuer)
                        && CertCompareIntegerBlob(&info->CertSerialNumber, &cert->pCertInfo->SerialNumber))
                    status = CERT_TRUST_HAS_NAME_MATCH_ISSUER;
            }
            else if (info->KeyId.cbData)
            {
                ret = CertGetCertificateContextProperty(cert,
                 CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
                if (ret && size == info->KeyId.cbData)
                {
                    LPBYTE buf = CryptMemAlloc(size);
 
                    if (buf)
                    {
                        CertGetCertificateContextProperty(cert,
                         CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
                        if (!memcmp(buf, info->KeyId.pbData, size))
                            status = CERT_TRUST_HAS_KEY_MATCH_ISSUER;
                        CryptMemFree(buf);
                    }
                }
            }
            LocalFree(info);
        }
    }
    else
        if (CertCompareCertificateName(cert->dwCertEncodingType, &cert->pCertInfo->Subject, &cert->pCertInfo->Issuer))
            status = CERT_TRUST_HAS_NAME_MATCH_ISSUER;
 
    if (status)
        status |= CERT_TRUST_IS_SELF_SIGNED;
 
    return status;
}

Referenced by CertGetIssuerCertificateFromStore(), CRYPT_BuildSimpleChain(), CRYPT_CheckChainNameConstraints(), and CRYPT_CheckSimpleChain().

CRYPT_IsCertVersionValid()

static BOOL CRYPT_IsCertVersionValid ( PCCERT_CONTEXT  cert )

static

Definition at line 1836 of file chain.c.

{
    BOOL ret = TRUE;
 
    /* Checks whether the contents of the cert match the cert's version. */
    switch (cert->pCertInfo->dwVersion)
    {
    case CERT_V1:
        /* A V1 cert may not contain unique identifiers.  See RFC 5280,
         * section 4.1.2.8:
         * "These fields MUST only appear if the version is 2 or 3 (Section
         *  4.1.2.1).  These fields MUST NOT appear if the version is 1."
         */
        if (cert->pCertInfo->IssuerUniqueId.cbData ||
         cert->pCertInfo->SubjectUniqueId.cbData)
            ret = FALSE;
        /* A V1 cert may not contain extensions.  See RFC 5280, section 4.1.2.9:
         * "This field MUST only appear if the version is 3 (Section 4.1.2.1)."
         */
        if (cert->pCertInfo->cExtension)
            ret = FALSE;
        break;
    case CERT_V2:
        /* A V2 cert may not contain extensions.  See RFC 5280, section 4.1.2.9:
         * "This field MUST only appear if the version is 3 (Section 4.1.2.1)."
         */
        if (cert->pCertInfo->cExtension)
            ret = FALSE;
        break;
    case CERT_V3:
        /* Do nothing, all fields are allowed for V3 certs */
        break;
    default:
        WARN_(chain)("invalid cert version %ld\n", cert->pCertInfo->dwVersion);
        ret = FALSE;
    }
    return ret;
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_IsEmptyName()

static BOOL CRYPT_IsEmptyName ( const CERT_NAME_BLOB *  name )

static

Definition at line 1106 of file chain.c.

{
    BOOL empty;
 
    if (!name->cbData)
        empty = TRUE;
    else if (name->cbData == 2 && name->pbData[1] == 0)
    {
        /* An empty sequence is also empty */
        empty = TRUE;
    }
    else
        empty = FALSE;
    return empty;
}

Referenced by compare_subject_with_constraints().

CRYPT_IsSimpleChainCyclic()

static BOOL CRYPT_IsSimpleChainCyclic ( const CERT_SIMPLE_CHAIN *  chain )

inlinestatic

Definition at line 403 of file chain.c.

{
    if (chain->cElement)
        return chain->rgpElement[chain->cElement - 1]->TrustStatus.dwErrorStatus
         & CERT_TRUST_IS_CYCLIC;
    else
        return FALSE;
}

Referenced by CRYPT_BuildSimpleChain(), and CRYPT_CheckSimpleChain().

CRYPT_IsValidNameConstraint()

static BOOL CRYPT_IsValidNameConstraint ( const CERT_NAME_CONSTRAINTS_INFO *  info )

static

Definition at line 1230 of file chain.c.

{
    DWORD i;
    BOOL ret = TRUE;
 
    /* Make sure at least one permitted or excluded subtree is present.  From
     * RFC 5280, section 4.2.1.10:
     * "Conforming CAs MUST NOT issue certificates where name constraints is an
     *  empty sequence.  That is, either the permittedSubtrees field or the
     *  excludedSubtrees MUST be present."
     */
    if (!info->cPermittedSubtree && !info->cExcludedSubtree)
    {
        WARN_(chain)("constraints contain no permitted nor excluded subtree\n");
        ret = FALSE;
    }
    /* Check that none of the constraints specifies a minimum or a maximum.
     * See RFC 5280, section 4.2.1.10:
     * "Within this profile, the minimum and maximum fields are not used with
     *  any name forms, thus, the minimum MUST be zero, and maximum MUST be
     *  absent.  However, if an application encounters a critical name
     *  constraints extension that specifies other values for minimum or
     *  maximum for a name form that appears in a subsequent certificate, the
     *  application MUST either process these fields or reject the
     *  certificate."
     * Since it gives no guidance as to how to process these fields, we
     * reject any name constraint that contains them.
     */
    for (i = 0; ret && i < info->cPermittedSubtree; i++)
        if (info->rgPermittedSubtree[i].dwMinimum ||
         info->rgPermittedSubtree[i].fMaximum)
        {
            TRACE_(chain)("found a minimum or maximum in permitted subtrees\n");
            ret = FALSE;
        }
    for (i = 0; ret && i < info->cExcludedSubtree; i++)
        if (info->rgExcludedSubtree[i].dwMinimum ||
         info->rgExcludedSubtree[i].fMaximum)
        {
            TRACE_(chain)("found a minimum or maximum in excluded subtrees\n");
            ret = FALSE;
        }
    return ret;
}

Referenced by CRYPT_CheckChainNameConstraints().

CRYPT_KeyUsageValid()

static BOOL CRYPT_KeyUsageValid ( CertificateChainEngine *  engine, PCCERT_CONTEXT  cert, BOOL  isRoot, BOOL  isCA, DWORD  index  )

static

Definition at line 1719 of file chain.c.

{
    PCERT_EXTENSION ext;
    BOOL ret;
    BYTE usageBits = 0;
 
    ext = CertFindExtension(szOID_KEY_USAGE, cert->pCertInfo->cExtension,
     cert->pCertInfo->rgExtension);
    if (ext)
    {
        CRYPT_BIT_BLOB usage;
        DWORD size = sizeof(usage);
 
        ret = CryptDecodeObjectEx(cert->dwCertEncodingType, X509_BITS,
         ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL,
         &usage, &size);
        if (!ret)
            return FALSE;
        else if (usage.cbData > 2)
        {
            /* The key usage extension only defines 9 bits => no more than 2
             * bytes are needed to encode all known usages.
             */
            return FALSE;
        }
        else
        {
            /* The only bit relevant to chain validation is the keyCertSign
             * bit, which is always in the least significant byte of the
             * key usage bits.
             */
            usageBits = usage.pbData[usage.cbData - 1];
        }
    }
    if (isCA)
    {
        if (!ext)
        {
            /* MS appears to violate RFC 5280, section 4.2.1.3 (Key Usage)
             * here.  Quoting the RFC:
             * "This [key usage] extension MUST appear in certificates that
             * contain public keys that are used to validate digital signatures
             * on other public key certificates or CRLs."
             * MS appears to accept certs that do not contain key usage
             * extensions as CA certs.  V1 and V2 certificates did not have
             * extensions, and many root certificates are V1 certificates, so
             * perhaps this is prudent.  On the other hand, MS also accepts V3
             * certs without key usage extensions.  Because some CAs, e.g.
             * Certum, also do not include key usage extensions in their
             * intermediate certificates, we are forced to accept V3
             * certificates without key usage extensions as well.
             */
            ret = TRUE;
        }
        else
        {
            if (!(usageBits & CERT_KEY_CERT_SIGN_KEY_USAGE))
            {
                WARN_(chain)("keyCertSign not asserted on a CA cert\n");
                ret = FALSE;
            }
            else
                ret = TRUE;
        }
    }
    else
    {
        if (ext && (usageBits & CERT_KEY_CERT_SIGN_KEY_USAGE))
        {
            WARN_(chain)("keyCertSign asserted on a non-CA cert\n");
            ret = FALSE;
        }
        else
            ret = TRUE;
    }
    return ret;
}

Referenced by CRYPT_CheckSimpleChain().

CRYPT_VerifyChainRevocation()

static void CRYPT_VerifyChainRevocation ( PCERT_CHAIN_CONTEXT  chain, LPFILETIME  pTime, HCERTSTORE  hAdditionalStore, const CERT_CHAIN_PARA *  pChainPara, DWORD  chainFlags  )

static

Definition at line 2628 of file chain.c.

{
    DWORD cContext;
 
    if (chainFlags & CERT_CHAIN_REVOCATION_CHECK_END_CERT)
        cContext = 1;
    else if ((chainFlags & CERT_CHAIN_REVOCATION_CHECK_CHAIN) ||
     (chainFlags & CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT))
    {
        DWORD i;
 
        for (i = 0, cContext = 0; i < chain->cChain; i++)
        {
            if (i < chain->cChain - 1 ||
             chainFlags & CERT_CHAIN_REVOCATION_CHECK_CHAIN)
                cContext += chain->rgpChain[i]->cElement;
            else
                cContext += chain->rgpChain[i]->cElement - 1;
        }
    }
    else
        cContext = 0;
    if (cContext)
    {
        DWORD i, j, iContext, revocationFlags;
        CERT_REVOCATION_PARA revocationPara = { sizeof(revocationPara), 0 };
        CERT_REVOCATION_STATUS revocationStatus =
         { sizeof(revocationStatus), 0 };
        BOOL ret;
 
        revocationFlags = CERT_VERIFY_REV_CHAIN_FLAG;
        if (chainFlags & CERT_CHAIN_REVOCATION_CHECK_CACHE_ONLY)
            revocationFlags |= CERT_VERIFY_CACHE_ONLY_BASED_REVOCATION;
        if (chainFlags & CERT_CHAIN_REVOCATION_ACCUMULATIVE_TIMEOUT)
            revocationFlags |= CERT_VERIFY_REV_ACCUMULATIVE_TIMEOUT_FLAG;
        revocationPara.pftTimeToUse = pTime;
        if (hAdditionalStore)
        {
            revocationPara.cCertStore = 1;
            revocationPara.rgCertStore = &hAdditionalStore;
            revocationPara.hCrlStore = hAdditionalStore;
        }
        if (pChainPara->cbSize == sizeof(CERT_CHAIN_PARA))
        {
            revocationPara.dwUrlRetrievalTimeout =
             pChainPara->dwUrlRetrievalTimeout;
            revocationPara.fCheckFreshnessTime =
             pChainPara->fCheckRevocationFreshnessTime;
            revocationPara.dwFreshnessTime =
             pChainPara->dwRevocationFreshnessTime;
        }
        for (i = 0, iContext = 0; iContext < cContext && i < chain->cChain; i++)
        {
            for (j = 0; iContext < cContext &&
             j < chain->rgpChain[i]->cElement; j++, iContext++)
            {
                PCCERT_CONTEXT certToCheck =
                 chain->rgpChain[i]->rgpElement[j]->pCertContext;
 
                if (j < chain->rgpChain[i]->cElement - 1)
                    revocationPara.pIssuerCert =
                     chain->rgpChain[i]->rgpElement[j + 1]->pCertContext;
                else
                    revocationPara.pIssuerCert = NULL;
                ret = CertVerifyRevocation(X509_ASN_ENCODING,
                 CERT_CONTEXT_REVOCATION_TYPE, 1, (void **)&certToCheck,
                 revocationFlags, &revocationPara, &revocationStatus);
 
                if (!ret && chainFlags & CERT_CHAIN_REVOCATION_CHECK_CHAIN
                    && revocationStatus.dwError == CRYPT_E_NO_REVOCATION_CHECK && revocationPara.pIssuerCert == NULL)
                    ret = TRUE;
 
                if (!ret)
                {
                    PCERT_CHAIN_ELEMENT element = CRYPT_FindIthElementInChain(
                     chain, iContext);
                    DWORD error;
 
                    switch (revocationStatus.dwError)
                    {
                    case CRYPT_E_NO_REVOCATION_CHECK:
                    case CRYPT_E_NO_REVOCATION_DLL:
                    case CRYPT_E_NOT_IN_REVOCATION_DATABASE:
                        /* If the revocation status is unknown, it's assumed
                         * to be offline too.
                         */
                        error = CERT_TRUST_REVOCATION_STATUS_UNKNOWN |
                         CERT_TRUST_IS_OFFLINE_REVOCATION;
                        break;
                    case CRYPT_E_REVOCATION_OFFLINE:
                        error = CERT_TRUST_IS_OFFLINE_REVOCATION;
                        break;
                    case CRYPT_E_REVOKED:
                        error = CERT_TRUST_IS_REVOKED;
                        break;
                    default:
                        WARN("unmapped error %08lx\n", revocationStatus.dwError);
                        error = 0;
                    }
                    if (element)
                    {
                        /* FIXME: set element's pRevocationInfo member */
                        element->TrustStatus.dwErrorStatus |= error;
                    }
                    chain->TrustStatus.dwErrorStatus |= error;
                }
            }
        }
    }
}

Referenced by CertGetCertificateChain().

debugstr_filetime()

static LPCSTR debugstr_filetime ( LPFILETIME  pTime )

static

Definition at line 2209 of file chain.c.

{
    if (!pTime)
        return "(nil)";
    return wine_dbg_sprintf("%p (%s)", pTime, filetime_to_str(pTime));
}

Referenced by CertGetCertificateChain(), CRYPT_BuildAlternateContextFromChain(), and CRYPT_GetSimpleChainForCert().

default_chain_engine_free()

void default_chain_engine_free

(

void

)

Definition at line 251 of file chain.c.

{
    free_chain_engine(default_cu_engine);
    free_chain_engine(default_lm_engine);
}

Referenced by DllMain().

directory_name_matches()

static BOOL directory_name_matches ( const CERT_NAME_BLOB *  constraint, const CERT_NAME_BLOB *  name  )

static

Definition at line 860 of file chain.c.

{
    CERT_NAME_INFO *constraintName;
    DWORD size;
    BOOL match = FALSE;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_NAME, constraint->pbData,
     constraint->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &constraintName, &size))
    {
        DWORD i;
 
        match = TRUE;
        for (i = 0; match && i < constraintName->cRDN; i++)
            match = CertIsRDNAttrsInCertificateName(X509_ASN_ENCODING,
             CERT_CASE_INSENSITIVE_IS_RDN_ATTRS_FLAG,
             (CERT_NAME_BLOB *)name, &constraintName->rgRDN[i]);
        LocalFree(constraintName);
    }
    return match;
}

Referenced by alt_name_matches(), and compare_subject_with_constraints().

dns_name_matches()

static BOOL dns_name_matches ( LPCWSTR  constraint, LPCWSTR  name, DWORD *  trustErrorStatus  )

static

Definition at line 771 of file chain.c.

{
    BOOL match = FALSE;
 
    TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
 
    if (!constraint)
        *trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
    else if (!name)
        ; /* no match */
    /* RFC 5280, section 4.2.1.10:
     * "DNS name restrictions are expressed as host.example.com.  Any DNS name
     *  that can be constructed by simply adding zero or more labels to the
     *  left-hand side of the name satisfies the name constraint.  For example,
     *  www.host.example.com would satisfy the constraint but host1.example.com
     *  would not."
     */
    else if (lstrlenW(name) == lstrlenW(constraint))
        match = !lstrcmpiW(name, constraint);
    else if (lstrlenW(name) > lstrlenW(constraint))
    {
        match = !lstrcmpiW(name + lstrlenW(name) - lstrlenW(constraint),
         constraint);
        if (match)
        {
            BOOL dot = FALSE;
            LPCWSTR ptr;
 
            /* This only matches if name is a subdomain of constraint, i.e.
             * there's a '.' between the beginning of the name and the
             * matching portion of the name.
             */
            for (ptr = name + lstrlenW(name) - lstrlenW(constraint);
             !dot && ptr >= name; ptr--)
                if (*ptr == '.')
                    dot = TRUE;
            match = dot;
        }
    }
    /* else:  name is too short, no match */
 
    return match;
}

Referenced by alt_name_matches().

domain_name_matches()

static BOOL domain_name_matches ( LPCWSTR  constraint, LPCWSTR  name  )

static

Definition at line 643 of file chain.c.

{
    BOOL match;
 
    /* RFC 5280, section 4.2.1.10:
     * "For URIs, the constraint applies to the host part of the name...
     *  When the constraint begins with a period, it MAY be expanded with one
     *  or more labels.  That is, the constraint ".example.com" is satisfied by
     *  both host.example.com and my.host.example.com.  However, the constraint
     *  ".example.com" is not satisfied by "example.com".  When the constraint
     *  does not begin with a period, it specifies a host."
     * and for email addresses,
     * "To indicate all Internet mail addresses on a particular host, the
     *  constraint is specified as the host name.  For example, the constraint
     *  "example.com" is satisfied by any mail address at the host
     *  "example.com".  To specify any address within a domain, the constraint
     *  is specified with a leading period (as with URIs)."
     */
    if (constraint[0] == '.')
    {
        /* Must be strictly greater than, a name can't begin with '.' */
        if (lstrlenW(name) > lstrlenW(constraint))
            match = !lstrcmpiW(name + lstrlenW(name) - lstrlenW(constraint),
             constraint);
        else
        {
            /* name is too short, no match */
            match = FALSE;
        }
    }
    else
        match = !lstrcmpiW(name, constraint);
     return match;
}

Referenced by rfc822_name_matches(), and url_matches().

dump_alt_name()

static void dump_alt_name ( LPCSTR  type, const CERT_EXTENSION *  ext  )

static

Definition at line 1461 of file chain.c.

{
    CERT_ALT_NAME_INFO *name;
    DWORD size;
 
    TRACE_(chain)("%s:\n", type);
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ALTERNATE_NAME,
     ext->Value.pbData, ext->Value.cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL, &name, &size))
    {
        DWORD i;
 
        TRACE_(chain)("%ld alt name entries:\n", name->cAltEntry);
        for (i = 0; i < name->cAltEntry; i++)
            dump_alt_name_entry(&name->rgAltEntry[i]);
        LocalFree(name);
    }
}

Referenced by dump_extension().

dump_alt_name_entry()

static void dump_alt_name_entry ( const CERT_ALT_NAME_ENTRY *  entry )

static

Definition at line 1422 of file chain.c.

{
    LPWSTR str;
 
    switch (entry->dwAltNameChoice)
    {
    case CERT_ALT_NAME_OTHER_NAME:
        TRACE_(chain)("CERT_ALT_NAME_OTHER_NAME, oid = %s\n",
         debugstr_a(entry->pOtherName->pszObjId));
         break;
    case CERT_ALT_NAME_RFC822_NAME:
        TRACE_(chain)("CERT_ALT_NAME_RFC822_NAME: %s\n",
         debugstr_w(entry->pwszRfc822Name));
        break;
    case CERT_ALT_NAME_DNS_NAME:
        TRACE_(chain)("CERT_ALT_NAME_DNS_NAME: %s\n",
         debugstr_w(entry->pwszDNSName));
        break;
    case CERT_ALT_NAME_DIRECTORY_NAME:
        str = name_value_to_str(&entry->DirectoryName);
        TRACE_(chain)("CERT_ALT_NAME_DIRECTORY_NAME: %s\n", debugstr_w(str));
        CryptMemFree(str);
        break;
    case CERT_ALT_NAME_URL:
        TRACE_(chain)("CERT_ALT_NAME_URL: %s\n", debugstr_w(entry->pwszURL));
        break;
    case CERT_ALT_NAME_IP_ADDRESS:
        TRACE_(chain)("CERT_ALT_NAME_IP_ADDRESS: %ld bytes\n",
         entry->IPAddress.cbData);
        break;
    case CERT_ALT_NAME_REGISTERED_ID:
        TRACE_(chain)("CERT_ALT_NAME_REGISTERED_ID: %s\n",
         debugstr_a(entry->pszRegisteredID));
        break;
    default:
        TRACE_(chain)("dwAltNameChoice = %ld\n", entry->dwAltNameChoice);
    }
}

Referenced by dump_alt_name(), and dump_general_subtree().

dump_authenticode_extra_chain_policy_para()

static void dump_authenticode_extra_chain_policy_para ( AUTHENTICODE_EXTRA_CERT_CHAIN_POLICY_PARA *  extraPara )

static

Definition at line 3074 of file chain.c.

{
    if (extraPara)
    {
        TRACE_(chain)("cbSize = %ld\n", extraPara->cbSize);
        TRACE_(chain)("dwRegPolicySettings = %08lx\n",
         extraPara->dwRegPolicySettings);
        TRACE_(chain)("pSignerInfo = %p\n", extraPara->pSignerInfo);
    }
}

Referenced by verify_authenticode_policy().

dump_basic_constraints()

static void dump_basic_constraints ( const CERT_EXTENSION *  ext )

static

Definition at line 1480 of file chain.c.

{
    CERT_BASIC_CONSTRAINTS_INFO *info;
    DWORD size = 0;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, szOID_BASIC_CONSTRAINTS,
     ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG,
     NULL, &info, &size))
    {
        TRACE_(chain)("SubjectType: %02x\n", info->SubjectType.pbData[0]);
        TRACE_(chain)("%s path length constraint\n",
         info->fPathLenConstraint ? "has" : "doesn't have");
        TRACE_(chain)("path length=%ld\n", info->dwPathLenConstraint);
        LocalFree(info);
    }
}

Referenced by dump_extension().

dump_basic_constraints2()

static void dump_basic_constraints2 ( const CERT_EXTENSION *  ext )

static

Definition at line 1497 of file chain.c.

{
    CERT_BASIC_CONSTRAINTS2_INFO constraints;
    DWORD size = sizeof(CERT_BASIC_CONSTRAINTS2_INFO);
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING,
     szOID_BASIC_CONSTRAINTS2, ext->Value.pbData, ext->Value.cbData,
     0, NULL, &constraints, &size))
    {
        TRACE_(chain)("basic constraints:\n");
        TRACE_(chain)("can%s be a CA\n", constraints.fCA ? "" : "not");
        TRACE_(chain)("%s path length constraint\n",
         constraints.fPathLenConstraint ? "has" : "doesn't have");
        TRACE_(chain)("path length=%ld\n", constraints.dwPathLenConstraint);
    }
}

Referenced by dump_extension().

dump_cert_policies()

static void dump_cert_policies ( const CERT_EXTENSION *  ext )

static

Definition at line 1572 of file chain.c.

{
    CERT_POLICIES_INFO *policies;
    DWORD size;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_CERT_POLICIES,
     ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL,
     &policies, &size))
    {
        DWORD i, j;
 
        TRACE_(chain)("%ld policies:\n", policies->cPolicyInfo);
        for (i = 0; i < policies->cPolicyInfo; i++)
        {
            TRACE_(chain)("policy identifier: %s\n",
             debugstr_a(policies->rgPolicyInfo[i].pszPolicyIdentifier));
            TRACE_(chain)("%ld policy qualifiers:\n",
             policies->rgPolicyInfo[i].cPolicyQualifier);
            for (j = 0; j < policies->rgPolicyInfo[i].cPolicyQualifier; j++)
                TRACE_(chain)("%s\n", debugstr_a(
                 policies->rgPolicyInfo[i].rgPolicyQualifier[j].
                 pszPolicyQualifierId));
        }
        LocalFree(policies);
    }
}

Referenced by dump_extension().

dump_chain_para()

static void dump_chain_para ( const CERT_CHAIN_PARA *  pChainPara )

static

Definition at line 2860 of file chain.c.

{
    TRACE_(chain)("%ld\n", pChainPara->cbSize);
    if (pChainPara->cbSize >= sizeof(CERT_CHAIN_PARA_NO_EXTRA_FIELDS))
        dump_usage_match("RequestedUsage", &pChainPara->RequestedUsage);
    if (pChainPara->cbSize >= sizeof(CERT_CHAIN_PARA))
    {
        dump_usage_match("RequestedIssuancePolicy",
         &pChainPara->RequestedIssuancePolicy);
        TRACE_(chain)("%ld\n", pChainPara->dwUrlRetrievalTimeout);
        TRACE_(chain)("%d\n", pChainPara->fCheckRevocationFreshnessTime);
        TRACE_(chain)("%ld\n", pChainPara->dwRevocationFreshnessTime);
    }
}

Referenced by CertGetCertificateChain().

dump_element()

static void dump_element ( PCCERT_CONTEXT  cert )

static

Definition at line 1685 of file chain.c.

{
    LPWSTR name = NULL;
    DWORD len, i;
 
    TRACE_(chain)("%p: version %ld\n", cert, cert->pCertInfo->dwVersion);
    len = CertGetNameStringW(cert, CERT_NAME_SIMPLE_DISPLAY_TYPE,
     CERT_NAME_ISSUER_FLAG, NULL, NULL, 0);
    name = CryptMemAlloc(len * sizeof(WCHAR));
    if (name)
    {
        CertGetNameStringW(cert, CERT_NAME_SIMPLE_DISPLAY_TYPE,
         CERT_NAME_ISSUER_FLAG, NULL, name, len);
        TRACE_(chain)("issued by %s\n", debugstr_w(name));
        CryptMemFree(name);
    }
    len = CertGetNameStringW(cert, CERT_NAME_SIMPLE_DISPLAY_TYPE, 0, NULL,
     NULL, 0);
    name = CryptMemAlloc(len * sizeof(WCHAR));
    if (name)
    {
        CertGetNameStringW(cert, CERT_NAME_SIMPLE_DISPLAY_TYPE, 0, NULL,
         name, len);
        TRACE_(chain)("issued to %s\n", debugstr_w(name));
        CryptMemFree(name);
    }
    TRACE_(chain)("valid from %s to %s\n",
     filetime_to_str(&cert->pCertInfo->NotBefore),
     filetime_to_str(&cert->pCertInfo->NotAfter));
    TRACE_(chain)("%ld extensions\n", cert->pCertInfo->cExtension);
    for (i = 0; i < cert->pCertInfo->cExtension; i++)
        dump_extension(&cert->pCertInfo->rgExtension[i]);
}

Referenced by CRYPT_CheckSimpleChain().

dump_enhanced_key_usage()

static void dump_enhanced_key_usage ( const CERT_EXTENSION *  ext )

static

Definition at line 1599 of file chain.c.

{
    CERT_ENHKEY_USAGE *usage;
    DWORD size;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ENHANCED_KEY_USAGE,
     ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL,
     &usage, &size))
    {
        DWORD i;
 
        TRACE_(chain)("%ld usages:\n", usage->cUsageIdentifier);
        for (i = 0; i < usage->cUsageIdentifier; i++)
            TRACE_(chain)("%s\n", usage->rgpszUsageIdentifier[i]);
        LocalFree(usage);
    }
}

Referenced by dump_extension().

dump_extension()

static void dump_extension ( const CERT_EXTENSION *  ext )

static

Definition at line 1643 of file chain.c.

{
    TRACE_(chain)("%s (%scritical)\n", debugstr_a(ext->pszObjId),
     ext->fCritical ? "" : "not ");
    if (!strcmp(ext->pszObjId, szOID_SUBJECT_ALT_NAME))
        dump_alt_name("subject alt name", ext);
    else  if (!strcmp(ext->pszObjId, szOID_ISSUER_ALT_NAME))
        dump_alt_name("issuer alt name", ext);
    else if (!strcmp(ext->pszObjId, szOID_BASIC_CONSTRAINTS))
        dump_basic_constraints(ext);
    else if (!strcmp(ext->pszObjId, szOID_KEY_USAGE))
        dump_key_usage(ext);
    else if (!strcmp(ext->pszObjId, szOID_SUBJECT_ALT_NAME2))
        dump_alt_name("subject alt name 2", ext);
    else if (!strcmp(ext->pszObjId, szOID_ISSUER_ALT_NAME2))
        dump_alt_name("issuer alt name 2", ext);
    else if (!strcmp(ext->pszObjId, szOID_BASIC_CONSTRAINTS2))
        dump_basic_constraints2(ext);
    else if (!strcmp(ext->pszObjId, szOID_NAME_CONSTRAINTS))
        dump_name_constraints(ext);
    else if (!strcmp(ext->pszObjId, szOID_CERT_POLICIES))
        dump_cert_policies(ext);
    else if (!strcmp(ext->pszObjId, szOID_ENHANCED_KEY_USAGE))
        dump_enhanced_key_usage(ext);
    else if (!strcmp(ext->pszObjId, szOID_NETSCAPE_CERT_TYPE))
        dump_netscape_cert_type(ext);
}

Referenced by dump_element().

dump_general_subtree()

static void dump_general_subtree ( const CERT_GENERAL_SUBTREE *  subtree )

static

Definition at line 1541 of file chain.c.

{
    dump_alt_name_entry(&subtree->Base);
    TRACE_(chain)("dwMinimum = %ld, fMaximum = %d, dwMaximum = %ld\n",
     subtree->dwMinimum, subtree->fMaximum, subtree->dwMaximum);
}

Referenced by dump_name_constraints().

dump_key_usage()

static void dump_key_usage ( const CERT_EXTENSION *  ext )

static

Definition at line 1514 of file chain.c.

{
    CRYPT_BIT_BLOB usage;
    DWORD size = sizeof(usage);
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_BITS, ext->Value.pbData,
     ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL, &usage, &size))
    {
#define trace_usage_bit(bits, bit) \
 if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)
        if (usage.cbData)
        {
            trace_usage_bit(usage.pbData[0], CERT_DIGITAL_SIGNATURE_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_NON_REPUDIATION_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_KEY_ENCIPHERMENT_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_DATA_ENCIPHERMENT_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_KEY_AGREEMENT_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_KEY_CERT_SIGN_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_CRL_SIGN_KEY_USAGE);
            trace_usage_bit(usage.pbData[0], CERT_ENCIPHER_ONLY_KEY_USAGE);
        }
#undef trace_usage_bit
        if (usage.cbData > 1 && usage.pbData[1] & CERT_DECIPHER_ONLY_KEY_USAGE)
            TRACE_(chain)("CERT_DECIPHER_ONLY_KEY_USAGE\n");
    }
}

Referenced by dump_extension().

dump_name_constraints()

static void dump_name_constraints ( const CERT_EXTENSION *  ext )

static

Definition at line 1548 of file chain.c.

{
    CERT_NAME_CONSTRAINTS_INFO *nameConstraints;
    DWORD size;
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_NAME_CONSTRAINTS,
     ext->Value.pbData, ext->Value.cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL, &nameConstraints,
     &size))
    {
        DWORD i;
 
        TRACE_(chain)("%ld permitted subtrees:\n",
         nameConstraints->cPermittedSubtree);
        for (i = 0; i < nameConstraints->cPermittedSubtree; i++)
            dump_general_subtree(&nameConstraints->rgPermittedSubtree[i]);
        TRACE_(chain)("%ld excluded subtrees:\n",
         nameConstraints->cExcludedSubtree);
        for (i = 0; i < nameConstraints->cExcludedSubtree; i++)
            dump_general_subtree(&nameConstraints->rgExcludedSubtree[i]);
        LocalFree(nameConstraints);
    }
}

Referenced by dump_extension().

dump_netscape_cert_type()

static void dump_netscape_cert_type ( const CERT_EXTENSION *  ext )

static

Definition at line 1617 of file chain.c.

{
    CRYPT_BIT_BLOB usage;
    DWORD size = sizeof(usage);
 
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_BITS, ext->Value.pbData,
     ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL, &usage, &size))
    {
#define trace_cert_type_bit(bits, bit) \
 if ((bits) & (bit)) TRACE_(chain)("%s\n", #bit)
        if (usage.cbData)
        {
            trace_cert_type_bit(usage.pbData[0],
             NETSCAPE_SSL_CLIENT_AUTH_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0],
             NETSCAPE_SSL_SERVER_AUTH_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0], NETSCAPE_SMIME_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0], NETSCAPE_SIGN_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0], NETSCAPE_SSL_CA_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0], NETSCAPE_SMIME_CA_CERT_TYPE);
            trace_cert_type_bit(usage.pbData[0], NETSCAPE_SIGN_CA_CERT_TYPE);
        }
#undef trace_cert_type_bit
    }
}

Referenced by dump_extension().

dump_policy_para()

static void dump_policy_para ( PCERT_CHAIN_POLICY_PARA  para )

static

Definition at line 3796 of file chain.c.

{
    if (para)
    {
        TRACE_(chain)("cbSize = %ld\n", para->cbSize);
        TRACE_(chain)("dwFlags = %08lx\n", para->dwFlags);
        TRACE_(chain)("pvExtraPolicyPara = %p\n", para->pvExtraPolicyPara);
    }
}

Referenced by CertVerifyCertificateChainPolicy().

dump_ssl_extra_chain_policy_para()

static void dump_ssl_extra_chain_policy_para ( HTTPSPolicyCallbackData *  sslPara )

static

Definition at line 3438 of file chain.c.

{
    if (sslPara)
    {
        TRACE_(chain)("cbSize = %ld\n", sslPara->cbSize);
        TRACE_(chain)("dwAuthType = %ld\n", sslPara->dwAuthType);
        TRACE_(chain)("fdwChecks = %08lx\n", sslPara->fdwChecks);
        TRACE_(chain)("pwszServerName = %s\n",
         debugstr_w(sslPara->pwszServerName));
    }
}

Referenced by verify_ssl_policy().

dump_usage_match()

static void dump_usage_match ( LPCSTR  name, const CERT_USAGE_MATCH *  usageMatch  )

static

Definition at line 2847 of file chain.c.

{
    if (usageMatch->Usage.cUsageIdentifier)
    {
        DWORD i;
 
        TRACE_(chain)("%s: %s\n", name,
         usageMatch->dwType == USAGE_MATCH_TYPE_AND ? "AND" : "OR");
        for (i = 0; i < usageMatch->Usage.cUsageIdentifier; i++)
            TRACE_(chain)("%s\n", usageMatch->Usage.rgpszUsageIdentifier[i]);
    }
}

Referenced by dump_chain_para().

filetime_to_str()

static LPCSTR filetime_to_str ( const FILETIME *  time )

static

Definition at line 1671 of file chain.c.

{
    char date[80];
    char dateFmt[80]; /* sufficient for all versions of LOCALE_SSHORTDATE */
    SYSTEMTIME sysTime;
 
    if (!time) return "(null)";
 
    GetLocaleInfoA(LOCALE_SYSTEM_DEFAULT, LOCALE_SSHORTDATE, dateFmt, ARRAY_SIZE(dateFmt));
    FileTimeToSystemTime(time, &sysTime);
    GetDateFormatA(LOCALE_SYSTEM_DEFAULT, 0, &sysTime, dateFmt, date, ARRAY_SIZE(date));
    return wine_dbg_sprintf("%s", date);
}

Referenced by CRYPT_CheckSimpleChain(), debugstr_filetime(), and dump_element().

find_element_with_error()

static void find_element_with_error ( PCCERT_CHAIN_CONTEXT  chain, DWORD  error, LONG *  iChain, LONG *  iElement  )

static

Definition at line 2978 of file chain.c.

{
    DWORD i, j;
 
    for (i = 0; i < chain->cChain; i++)
        for (j = 0; j < chain->rgpChain[i]->cElement; j++)
            if (chain->rgpChain[i]->rgpElement[j]->TrustStatus.dwErrorStatus &
             error)
            {
                *iChain = i;
                *iElement = j;
                return;
            }
}

Referenced by verify_base_policy(), verify_basic_constraints_policy(), and verify_ssl_policy().

find_matching_domain_component()

static BOOL find_matching_domain_component ( const CERT_NAME_INFO *  name, const WCHAR *  component, size_t  len  )

static

Definition at line 3213 of file chain.c.

{
    DWORD i, j;
 
    for (i = 0; i < name->cRDN; i++)
        for (j = 0; j < name->rgRDN[i].cRDNAttr; j++)
            if (!strcmp(szOID_DOMAIN_COMPONENT,
             name->rgRDN[i].rgRDNAttr[j].pszObjId))
            {
                const CERT_RDN_ATTR *attr;
 
                attr = &name->rgRDN[i].rgRDNAttr[j];
                /* Compare with wcsnicmp rather than wcsicmp in order to avoid
                 * a match with a string with an embedded NULL.  The component
                 * must match one domain component attribute's entire string
                 * value with a case-insensitive match.
                 */
                if ((len == attr->Value.cbData / sizeof(WCHAR)) &&
                    !wcsnicmp(component, (LPCWSTR)attr->Value.pbData, len))
                    return TRUE;
            }
    return FALSE;
}

Referenced by match_dns_to_subject_dn().

free_chain_engine()

static void free_chain_engine ( CertificateChainEngine *  engine )

static

Definition at line 197 of file chain.c.

{
    if(!engine || InterlockedDecrement(&engine->ref))
        return;
 
    CertCloseStore(engine->hWorld, 0);
    CertCloseStore(engine->hRoot, 0);
    CryptMemFree(engine);
}

Referenced by CertFreeCertificateChainEngine(), and default_chain_engine_free().

get_chain_engine()

static CertificateChainEngine * get_chain_engine ( HCERTCHAINENGINE  handle, BOOL  allow_default  )

static

Definition at line 162 of file chain.c.

{
    const CERT_CHAIN_ENGINE_CONFIG config = { sizeof(config) };
 
    if(handle == HCCE_CURRENT_USER) {
        if(!allow_default)
            return NULL;
 
        if(!default_cu_engine) {
            handle = CRYPT_CreateChainEngine(NULL, CERT_SYSTEM_STORE_CURRENT_USER, &config);
            InterlockedCompareExchangePointer((void**)&default_cu_engine, handle, NULL);
            if(default_cu_engine != handle)
                CertFreeCertificateChainEngine(handle);
        }
 
        return default_cu_engine;
    }
 
    if(handle == HCCE_LOCAL_MACHINE) {
        if(!allow_default)
            return NULL;
 
        if(!default_lm_engine) {
            handle = CRYPT_CreateChainEngine(NULL, CERT_SYSTEM_STORE_LOCAL_MACHINE, &config);
            InterlockedCompareExchangePointer((void**)&default_lm_engine, handle, NULL);
            if(default_lm_engine != handle)
                CertFreeCertificateChainEngine(handle);
        }
 
        return default_lm_engine;
    }
 
    return (CertificateChainEngine*)handle;
}

Referenced by CertFreeCertificateChainEngine(), and CertGetCertificateChain().

get_subject_alt_name_ext()

static PCERT_EXTENSION get_subject_alt_name_ext ( const CERT_INFO *  cert )

inlinestatic

Definition at line 951 of file chain.c.

{
    PCERT_EXTENSION ext;
 
    ext = CertFindExtension(szOID_SUBJECT_ALT_NAME2,
     cert->cExtension, cert->rgExtension);
    if (!ext)
        ext = CertFindExtension(szOID_SUBJECT_ALT_NAME,
         cert->cExtension, cert->rgExtension);
    return ext;
}

Referenced by CRYPT_CheckNameConstraints(), and verify_ssl_policy().

ip_address_matches()

static BOOL ip_address_matches ( const CRYPT_DATA_BLOB *  constraint, const CRYPT_DATA_BLOB *  name, DWORD *  trustErrorStatus  )

static

Definition at line 816 of file chain.c.

{
    BOOL match = FALSE;
 
    TRACE("(%ld, %p), (%ld, %p)\n", constraint->cbData, constraint->pbData,
     name->cbData, name->pbData);
 
    /* RFC5280, section 4.2.1.10, iPAddress syntax: either 8 or 32 bytes, for
     * IPv4 or IPv6 addresses, respectively.
     */
    if (constraint->cbData != sizeof(DWORD) * 2 && constraint->cbData != 32)
        *trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
    else if (name->cbData == sizeof(DWORD) &&
     constraint->cbData == sizeof(DWORD) * 2)
    {
        DWORD subnet, mask, addr;
 
        memcpy(&subnet, constraint->pbData, sizeof(subnet));
        memcpy(&mask, constraint->pbData + sizeof(subnet), sizeof(mask));
        memcpy(&addr, name->pbData, sizeof(addr));
        /* These are really in big-endian order, but for equality matching we
         * don't need to swap to host order
         */
        match = (subnet & mask) == (addr & mask);
    }
    else if (name->cbData == 16 && constraint->cbData == 32)
    {
        const BYTE *subnet, *mask, *addr;
        DWORD i;
 
        subnet = constraint->pbData;
        mask = constraint->pbData + 16;
        addr = name->pbData;
        match = TRUE;
        for (i = 0; match && i < 16; i++)
            if ((subnet[i] & mask[i]) != (addr[i] & mask[i]))
                match = FALSE;
    }
    /* else: name is wrong size, no match */
 
    return match;
}

Referenced by alt_name_matches().

match_common_name()

static BOOL match_common_name ( LPCWSTR  server_name, const CERT_RDN_ATTR *  nameAttr  )

static

Definition at line 3295 of file chain.c.

{
    LPCWSTR allowed = (LPCWSTR)nameAttr->Value.pbData;
    LPCWSTR allowed_component = allowed;
    DWORD allowed_len = nameAttr->Value.cbData / sizeof(WCHAR);
    LPCWSTR server_component = server_name;
    DWORD server_len = lstrlenW(server_name);
    BOOL matches = TRUE, allow_wildcards = TRUE;
 
    TRACE_(chain)("CN = %s\n", debugstr_wn(allowed_component, allowed_len));
 
    /* Remove trailing NULLs from the allowed name; while they shouldn't appear
     * in a certificate in the first place, they sometimes do, and they should
     * be ignored.
     */
    while (allowed_len && allowed_component[allowed_len - 1] == 0)
      allowed_len--;
 
    /* From RFC 2818 (HTTP over TLS), section 3.1:
     * "Names may contain the wildcard character * which is considered to match
     *  any single domain name component or component fragment. E.g.,
     *  *.a.com matches foo.a.com but not bar.foo.a.com. f*.com matches foo.com
     *  but not bar.com."
     *
     * And from RFC 2595 (Using TLS with IMAP, POP3 and ACAP), section 2.4:
     * "A "*" wildcard character MAY be used as the left-most name component in
     *  the certificate.  For example, *.example.com would match a.example.com,
     *  foo.example.com, etc. but would not match example.com."
     *
     * There are other protocols which use TLS, and none of them is
     * authoritative.  This accepts certificates in common usage, e.g.
     * *.domain.com matches www.domain.com but not domain.com, and
     * www*.domain.com matches www1.domain.com but not mail.domain.com.
     */
    do {
        LPCWSTR allowed_dot, server_dot;
 
        allowed_dot = wmemchr(allowed_component, '.',
         allowed_len - (allowed_component - allowed));
        server_dot = wmemchr(server_component, '.',
         server_len - (server_component - server_name));
        /* The number of components must match */
        if ((!allowed_dot && server_dot) || (allowed_dot && !server_dot))
        {
            if (!allowed_dot)
                WARN_(chain)("%s: too many components for CN=%s\n",
                 debugstr_w(server_name), debugstr_wn(allowed, allowed_len));
            else
                WARN_(chain)("%s: not enough components for CN=%s\n",
                 debugstr_w(server_name), debugstr_wn(allowed, allowed_len));
            matches = FALSE;
        }
        else
        {
            LPCWSTR allowed_end, server_end;
            BOOL has_wildcard;
 
            allowed_end = allowed_dot ? allowed_dot : allowed + allowed_len;
            server_end = server_dot ? server_dot : server_name + server_len;
            matches = match_domain_component(allowed_component,
             allowed_end - allowed_component, server_component,
             server_end - server_component, allow_wildcards, &has_wildcard);
            /* Once a non-wildcard component is seen, no wildcard components
             * may follow
             */
            if (!has_wildcard)
                allow_wildcards = FALSE;
            if (matches)
            {
                allowed_component = allowed_dot ? allowed_dot + 1 : allowed_end;
                server_component = server_dot ? server_dot + 1 : server_end;
            }
        }
    } while (matches && allowed_component &&
     allowed_component - allowed < allowed_len &&
     server_component && server_component - server_name < server_len);
    TRACE_(chain)("returning %d\n", matches);
    return matches;
}

Referenced by match_dns_to_subject_dn().

match_dns_to_subject_alt_name()

static BOOL match_dns_to_subject_alt_name ( const CERT_EXTENSION *  ext, LPCWSTR  server_name  )

static

Definition at line 3145 of file chain.c.

{
    BOOL matches = FALSE;
    CERT_ALT_NAME_INFO *subjectName;
    DWORD size;
 
    TRACE_(chain)("%s\n", debugstr_w(server_name));
    /* This could be spoofed by the embedded NULL vulnerability, since the
     * returned CERT_ALT_NAME_INFO doesn't have a way to indicate the
     * encoded length of a name.  Fortunately CryptDecodeObjectEx fails if
     * the encoded form of the name contains a NULL.
     */
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ALTERNATE_NAME,
     ext->Value.pbData, ext->Value.cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
     &subjectName, &size))
    {
        DWORD i;
 
        /* RFC 5280 states that multiple instances of each name type may exist,
         * in section 4.2.1.6:
         * "Multiple name forms, and multiple instances of each name form,
         *  MAY be included."
         * It doesn't specify the behavior in such cases, but both RFC 2818
         * and RFC 2595 explicitly accept a certificate if any name matches.
         */
        for (i = 0; !matches && i < subjectName->cAltEntry; i++)
        {
            if (subjectName->rgAltEntry[i].dwAltNameChoice ==
             CERT_ALT_NAME_DNS_NAME)
            {
                TRACE_(chain)("dNSName: %s\n", debugstr_w(
                 subjectName->rgAltEntry[i].pwszDNSName));
                if (subjectName->rgAltEntry[i].pwszDNSName[0] == '*')
                {
                    LPCWSTR server_name_dot;
 
                    /* Matching a wildcard: a wildcard matches a single name
                     * component, which is terminated by a dot.  RFC 1034
                     * doesn't define whether multiple wildcards are allowed,
                     * but I will assume that they are not until proven
                     * otherwise.  RFC 1034 also states that 'the "*" label
                     * always matches at least one whole label and sometimes
                     * more, but always whole labels.'  Native crypt32 does not
                     * match more than one label with a wildcard, so I do the
                     * same here.  Thus, a wildcard only accepts the first
                     * label, then requires an exact match of the remaining
                     * string.
                     */
                    server_name_dot = wcschr(server_name, '.');
                    if (server_name_dot)
                    {
                        if (!wcsicmp(server_name_dot,
                         subjectName->rgAltEntry[i].pwszDNSName + 1))
                            matches = TRUE;
                    }
                }
                else if (!wcsicmp(server_name,
                 subjectName->rgAltEntry[i].pwszDNSName))
                    matches = TRUE;
            }
        }
        LocalFree(subjectName);
    }
    return matches;
}

Referenced by verify_ssl_policy().

match_dns_to_subject_dn()

static BOOL match_dns_to_subject_dn ( PCCERT_CONTEXT  cert, LPCWSTR  server_name  )

static

Definition at line 3375 of file chain.c.

{
    BOOL matches = FALSE;
    CERT_NAME_INFO *name;
    DWORD size;
 
    TRACE_(chain)("%s\n", debugstr_w(server_name));
    if (CryptDecodeObjectEx(X509_ASN_ENCODING, X509_UNICODE_NAME,
     cert->pCertInfo->Subject.pbData, cert->pCertInfo->Subject.cbData,
     CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
     &name, &size))
    {
        /* If the subject distinguished name contains any name components,
         * make sure all of them are present.
         */
        if (CertFindRDNAttr(szOID_DOMAIN_COMPONENT, name))
        {
            LPCWSTR ptr = server_name;
 
            do {
                LPCWSTR dot = wcschr(ptr, '.'), end;
                /* 254 is the maximum DNS label length, see RFC 1035 */
                size_t len;
 
                end = dot ? dot : ptr + lstrlenW(ptr);
                len = end - ptr;
                if (len >= 255)
                {
                    WARN_(chain)("domain component %s too long\n",
                     debugstr_wn(ptr, len));
                    matches = FALSE;
                }
                else matches = find_matching_domain_component(name, ptr, len);
 
                ptr = dot ? dot + 1 : end;
            } while (matches && ptr && *ptr);
        }
        else
        {
            DWORD i, j;
 
            /* If the certificate isn't using a DN attribute in the name, make
             * make sure at least one common name matches.  From RFC 2818,
             * section 3.1:
             * "If more than one identity of a given type is present in the
             * certificate (e.g., more than one dNSName name, a match in any
             * one of the set is considered acceptable.)"
             */
            for (i = 0; !matches && i < name->cRDN; i++)
                for (j = 0; !matches && j < name->rgRDN[i].cRDNAttr; j++)
                {
                    PCERT_RDN_ATTR attr = &name->rgRDN[i].rgRDNAttr[j];
 
                    if (attr->pszObjId && !strcmp(szOID_COMMON_NAME,
                     attr->pszObjId))
                        matches = match_common_name(server_name, attr);
                }
        }
        LocalFree(name);
    }
    return matches;
}

Referenced by verify_ssl_policy().

match_domain_component()

static BOOL match_domain_component ( LPCWSTR  allowed_component, DWORD  allowed_len, LPCWSTR  server_component, DWORD  server_len, BOOL  allow_wildcards, BOOL *  see_wildcard  )

static

Definition at line 3238 of file chain.c.

{
    LPCWSTR allowed_ptr, server_ptr;
    BOOL matches = TRUE;
 
    *see_wildcard = FALSE;
 
    if (server_len < allowed_len)
    {
        WARN_(chain)("domain component %s too short for %s\n",
         debugstr_wn(server_component, server_len),
         debugstr_wn(allowed_component, allowed_len));
        /* A domain component can't contain a wildcard character, so a domain
         * component shorter than the allowed string can't produce a match.
         */
        return FALSE;
    }
    for (allowed_ptr = allowed_component, server_ptr = server_component;
         matches && allowed_ptr - allowed_component < allowed_len;
         allowed_ptr++, server_ptr++)
    {
        if (*allowed_ptr == '*')
        {
            if (allowed_ptr - allowed_component < allowed_len - 1)
            {
                WARN_(chain)("non-wildcard characters after wildcard not supported\n");
                matches = FALSE;
            }
            else if (!allow_wildcards)
            {
                WARN_(chain)("wildcard after non-wildcard component\n");
                matches = FALSE;
            }
            else
            {
                /* the preceding characters must have matched, so the rest of
                 * the component also matches.
                 */
                *see_wildcard = TRUE;
                break;
            }
        }
        if (matches)
            matches = towlower(*allowed_ptr) == towlower(*server_ptr);
    }
    if (matches && server_ptr - server_component < server_len)
    {
        /* If there are unmatched characters in the server domain component,
         * the server domain only matches if the allowed string ended in a '*'.
         */
        matches = *allowed_ptr == '*';
    }
    return matches;
}

Referenced by match_common_name().

name_value_to_str()

static LPWSTR name_value_to_str ( const CERT_NAME_BLOB *  name )

static

Definition at line 1406 of file chain.c.

{
    DWORD len = cert_name_to_str_with_indent(X509_ASN_ENCODING, 0, name,
     CERT_SIMPLE_NAME_STR, NULL, 0);
    LPWSTR str = NULL;
 
    if (len)
    {
        str = CryptMemAlloc(len * sizeof(WCHAR));
        if (str)
            cert_name_to_str_with_indent(X509_ASN_ENCODING, 0, name,
             CERT_SIMPLE_NAME_STR, str, len);
    }
    return str;
}

Referenced by dump_alt_name_entry().

rfc822_attr_matches_excluded_name()

static BOOL rfc822_attr_matches_excluded_name ( const CERT_RDN_ATTR *  attr, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus  )

static

Definition at line 1013 of file chain.c.

{
    DWORD i;
    BOOL match = FALSE;
 
    for (i = 0; !match && i < nameConstraints->cExcludedSubtree; i++)
    {
        const CERT_ALT_NAME_ENTRY *constraint =
         &nameConstraints->rgExcludedSubtree[i].Base;
 
        if (constraint->dwAltNameChoice == CERT_ALT_NAME_RFC822_NAME)
            match = rfc822_name_matches(constraint->pwszRfc822Name,
             (LPCWSTR)attr->Value.pbData, trustErrorStatus);
    }
    return match;
}

Referenced by compare_subject_with_email_constraints().

rfc822_attr_matches_permitted_name()

static BOOL rfc822_attr_matches_permitted_name ( const CERT_RDN_ATTR *  attr, const CERT_NAME_CONSTRAINTS_INFO *  nameConstraints, DWORD *  trustErrorStatus, BOOL *  present  )

static

Definition at line 1031 of file chain.c.

{
    DWORD i;
    BOOL match = FALSE;
 
    for (i = 0; !match && i < nameConstraints->cPermittedSubtree; i++)
    {
        const CERT_ALT_NAME_ENTRY *constraint =
         &nameConstraints->rgPermittedSubtree[i].Base;
 
        if (constraint->dwAltNameChoice == CERT_ALT_NAME_RFC822_NAME)
        {
            *present = TRUE;
            match = rfc822_name_matches(constraint->pwszRfc822Name,
             (LPCWSTR)attr->Value.pbData, trustErrorStatus);
        }
    }
    return match;
}

Referenced by compare_subject_with_email_constraints().

rfc822_name_matches()

static BOOL rfc822_name_matches ( LPCWSTR  constraint, LPCWSTR  name, DWORD *  trustErrorStatus  )

static

Definition at line 747 of file chain.c.

{
    BOOL match = FALSE;
    LPCWSTR at;
 
    TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
 
    if (!constraint)
        *trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
    else if (!name)
        ; /* no match */
    else if (wcschr(constraint, '@'))
        match = !lstrcmpiW(constraint, name);
    else
    {
        if ((at = wcschr(name, '@')))
            match = domain_name_matches(constraint, at + 1);
        else
            match = !lstrcmpiW(constraint, name);
    }
    return match;
}

Referenced by alt_name_matches(), rfc822_attr_matches_excluded_name(), and rfc822_attr_matches_permitted_name().

url_matches()

static BOOL url_matches ( LPCWSTR  constraint, LPCWSTR  name, DWORD *  trustErrorStatus  )

static

Definition at line 678 of file chain.c.

{
    BOOL match = FALSE;
 
    TRACE("%s, %s\n", debugstr_w(constraint), debugstr_w(name));
 
    if (!constraint)
        *trustErrorStatus |= CERT_TRUST_INVALID_NAME_CONSTRAINTS;
    else if (!name)
        ; /* no match */
    else
    {
        LPCWSTR colon, authority_end, at, hostname = NULL;
        /* The maximum length for a hostname is 254 in the DNS, see RFC 1034 */
        WCHAR hostname_buf[255];
 
        /* RFC 5280: only the hostname portion of the URL is compared.  From
         * section 4.2.1.10:
         * "For URIs, the constraint applies to the host part of the name.
         *  The constraint MUST be specified as a fully qualified domain name
         *  and MAY specify a host or a domain."
         * The format for URIs is in RFC 2396.
         *
         * First, remove any scheme that's present. */
        colon = wcschr(name, ':');
        if (colon && *(colon + 1) == '/' && *(colon + 2) == '/')
            name = colon + 3;
        /* Next, find the end of the authority component.  (The authority is
         * generally just the hostname, but it may contain a username or a port.
         * Those are removed next.)
         */
        authority_end = wcschr(name, '/');
        if (!authority_end)
            authority_end = wcschr(name, '?');
        if (!authority_end)
            authority_end = name + lstrlenW(name);
        /* Remove any port number from the authority.  The userinfo portion
         * of an authority may contain a colon, so stop if a userinfo portion
         * is found (indicated by '@').
         */
        for (colon = authority_end; colon >= name && *colon != ':' &&
         *colon != '@'; colon--)
            ;
        if (*colon == ':')
            authority_end = colon;
        /* Remove any username from the authority */
        if ((at = wcschr(name, '@')))
            name = at;
        /* Ignore any path or query portion of the URL. */
        if (*authority_end)
        {
            if (authority_end - name < ARRAY_SIZE(hostname_buf))
            {
                memcpy(hostname_buf, name,
                 (authority_end - name) * sizeof(WCHAR));
                hostname_buf[authority_end - name] = 0;
                hostname = hostname_buf;
            }
            /* else: Hostname is too long, not a match */
        }
        else
            hostname = name;
        if (hostname)
            match = domain_name_matches(constraint, hostname);
    }
    return match;
}

Referenced by alt_name_matches().

verify_authenticode_policy()

static BOOL WINAPI verify_authenticode_policy ( LPCSTR  szPolicyOID, PCCERT_CHAIN_CONTEXT  pChainContext, PCERT_CHAIN_POLICY_PARA  pPolicyPara, PCERT_CHAIN_POLICY_STATUS  pPolicyStatus  )

static

Definition at line 3086 of file chain.c.

{
    BOOL ret = verify_base_policy(szPolicyOID, pChainContext, pPolicyPara,
     pPolicyStatus);
    AUTHENTICODE_EXTRA_CERT_CHAIN_POLICY_PARA *extraPara = NULL;
 
    if (pPolicyPara)
        extraPara = pPolicyPara->pvExtraPolicyPara;
    if (TRACE_ON(chain))
        dump_authenticode_extra_chain_policy_para(extraPara);
    if (ret && pPolicyStatus->dwError == CERT_E_UNTRUSTEDROOT)
    {
        CERT_PUBLIC_KEY_INFO msPubKey = { { 0 } };
        BOOL isMSTestRoot = FALSE;
        PCCERT_CONTEXT failingCert =
         pChainContext->rgpChain[pPolicyStatus->lChainIndex]->
         rgpElement[pPolicyStatus->lElementIndex]->pCertContext;
        DWORD i;
        CRYPT_DATA_BLOB keyBlobs[] = {
         { sizeof(msTestPubKey1), msTestPubKey1 },
         { sizeof(msTestPubKey2), msTestPubKey2 },
        };
 
        /* Check whether the root is an MS test root */
        for (i = 0; !isMSTestRoot && i < ARRAY_SIZE(keyBlobs); i++)
        {
            msPubKey.PublicKey.cbData = keyBlobs[i].cbData;
            msPubKey.PublicKey.pbData = keyBlobs[i].pbData;
            if (CertComparePublicKeyInfo(
             X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
             &failingCert->pCertInfo->SubjectPublicKeyInfo, &msPubKey))
                isMSTestRoot = TRUE;
        }
        if (isMSTestRoot)
            pPolicyStatus->dwError = CERT_E_UNTRUSTEDTESTROOT;
    }
    return ret;
}

Referenced by CertVerifyCertificateChainPolicy().

verify_base_policy()

static BOOL WINAPI verify_base_policy ( LPCSTR  szPolicyOID, PCCERT_CHAIN_CONTEXT  pChainContext, PCERT_CHAIN_POLICY_PARA  pPolicyPara, PCERT_CHAIN_POLICY_STATUS  pPolicyStatus  )

static

Definition at line 2994 of file chain.c.

{
    DWORD checks = 0;
 
    if (pPolicyPara)
        checks = pPolicyPara->dwFlags;
    pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = -1;
    pPolicyStatus->dwError = NO_ERROR;
    if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_NOT_SIGNATURE_VALID)
    {
        pPolicyStatus->dwError = TRUST_E_CERT_SIGNATURE;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_SIGNATURE_VALID, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus & CERT_TRUST_IS_CYCLIC)
    {
        pPolicyStatus->dwError = CERT_E_CHAINING;
        find_element_with_error(pChainContext, CERT_TRUST_IS_CYCLIC,
         &pPolicyStatus->lChainIndex, &pPolicyStatus->lElementIndex);
        /* For a cyclic chain, which element is a cycle isn't meaningful */
        pPolicyStatus->lElementIndex = -1;
    }
    if (!pPolicyStatus->dwError &&
     pChainContext->TrustStatus.dwErrorStatus & CERT_TRUST_IS_UNTRUSTED_ROOT &&
     !(checks & CERT_CHAIN_POLICY_ALLOW_UNKNOWN_CA_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_UNTRUSTEDROOT;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_UNTRUSTED_ROOT, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    if (!pPolicyStatus->dwError &&
     pChainContext->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID &&
     !(checks & CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_EXPIRED;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_TIME_VALID, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    if (!pPolicyStatus->dwError &&
     pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_NOT_VALID_FOR_USAGE &&
     !(checks & CERT_CHAIN_POLICY_IGNORE_WRONG_USAGE_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_WRONG_USAGE;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_VALID_FOR_USAGE, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    if (!pPolicyStatus->dwError &&
     pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT &&
     !(checks & CERT_CHAIN_POLICY_IGNORE_NOT_SUPPORTED_CRITICAL_EXT_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_CRITICAL;
        find_element_with_error(pChainContext,
         CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    return TRUE;
}

Referenced by CertVerifyCertificateChainPolicy(), and verify_authenticode_policy().

verify_basic_constraints_policy()

static BOOL WINAPI verify_basic_constraints_policy ( LPCSTR  szPolicyOID, PCCERT_CHAIN_CONTEXT  pChainContext, PCERT_CHAIN_POLICY_PARA  pPolicyPara, PCERT_CHAIN_POLICY_STATUS  pPolicyStatus  )

static

Definition at line 3127 of file chain.c.

{
    pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = -1;
    if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_INVALID_BASIC_CONSTRAINTS)
    {
        pPolicyStatus->dwError = TRUST_E_BASIC_CONSTRAINTS;
        find_element_with_error(pChainContext,
         CERT_TRUST_INVALID_BASIC_CONSTRAINTS, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else
        pPolicyStatus->dwError = NO_ERROR;
    return TRUE;
}

Referenced by CertVerifyCertificateChainPolicy().

verify_ms_root_policy()

static BOOL WINAPI verify_ms_root_policy ( LPCSTR  szPolicyOID, PCCERT_CHAIN_CONTEXT  pChainContext, PCERT_CHAIN_POLICY_PARA  pPolicyPara, PCERT_CHAIN_POLICY_STATUS  pPolicyStatus  )

static

Definition at line 3738 of file chain.c.

{
    BOOL isMSRoot = FALSE;
 
    CERT_PUBLIC_KEY_INFO msPubKey = { { 0 } };
    DWORD i;
    static const CRYPT_DATA_BLOB keyBlobs[] = {
        { sizeof(msPubKey1), msPubKey1 },
        { sizeof(msPubKey2), msPubKey2 },
        { sizeof(msPubKey3), msPubKey3 },
        { sizeof(msPubKey4), msPubKey4 },
    };
    static const CRYPT_DATA_BLOB keyBlobs_approot[] = {
        { sizeof(msPubKey5), msPubKey5 },
    };
    PCERT_SIMPLE_CHAIN rootChain =
        pChainContext->rgpChain[pChainContext->cChain - 1];
    PCCERT_CONTEXT root =
        rootChain->rgpElement[rootChain->cElement - 1]->pCertContext;
 
    const CRYPT_DATA_BLOB *keys;
    unsigned int key_count;
 
    if (pPolicyPara && pPolicyPara->dwFlags & MICROSOFT_ROOT_CERT_CHAIN_POLICY_CHECK_APPLICATION_ROOT_FLAG)
    {
        keys = keyBlobs_approot;
        key_count = ARRAY_SIZE(keyBlobs_approot);
    }
    else
    {
        keys = keyBlobs;
        key_count = ARRAY_SIZE(keyBlobs);
    }
 
    for (i = 0; !isMSRoot && i < key_count; i++)
    {
        msPubKey.PublicKey.cbData = keys[i].cbData;
        msPubKey.PublicKey.pbData = keys[i].pbData;
        if (CertComparePublicKeyInfo(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
                &root->pCertInfo->SubjectPublicKeyInfo, &msPubKey)) isMSRoot = TRUE;
    }
 
    pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = 0;
 
    if (isMSRoot)
        pPolicyStatus->dwError = 0;
    else
        pPolicyStatus->dwError = CERT_E_UNTRUSTEDROOT;
 
    return TRUE;
}

Referenced by CertVerifyCertificateChainPolicy().

verify_ssl_policy()

static BOOL WINAPI verify_ssl_policy ( LPCSTR  szPolicyOID, PCCERT_CHAIN_CONTEXT  pChainContext, PCERT_CHAIN_POLICY_PARA  pPolicyPara, PCERT_CHAIN_POLICY_STATUS  pPolicyStatus  )

static

Definition at line 3450 of file chain.c.

{
    HTTPSPolicyCallbackData *sslPara = NULL;
    DWORD checks = 0, baseChecks = 0;
 
    if (pPolicyPara)
    {
        baseChecks = pPolicyPara->dwFlags;
        sslPara = pPolicyPara->pvExtraPolicyPara;
    }
    if (TRACE_ON(chain))
        dump_ssl_extra_chain_policy_para(sslPara);
    if (sslPara && sslPara->cbSize >= sizeof(HTTPSPolicyCallbackData))
        checks = sslPara->fdwChecks;
    pPolicyStatus->lChainIndex = pPolicyStatus->lElementIndex = -1;
    if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_NOT_SIGNATURE_VALID)
    {
        pPolicyStatus->dwError = TRUST_E_CERT_SIGNATURE;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_SIGNATURE_VALID, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_UNTRUSTED_ROOT &&
     !(checks & SECURITY_FLAG_IGNORE_UNKNOWN_CA) &&
     !(baseChecks & CERT_CHAIN_POLICY_ALLOW_UNKNOWN_CA_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_UNTRUSTEDROOT;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_UNTRUSTED_ROOT, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus & CERT_TRUST_IS_CYCLIC)
    {
        pPolicyStatus->dwError = CERT_E_UNTRUSTEDROOT;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_CYCLIC, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
        /* For a cyclic chain, which element is a cycle isn't meaningful */
        pPolicyStatus->lElementIndex = -1;
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_NOT_TIME_VALID &&
     !(checks & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID) &&
     !(baseChecks & CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG))
    {
        pPolicyStatus->dwError = CERT_E_EXPIRED;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_TIME_VALID, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_NOT_VALID_FOR_USAGE &&
     !(checks & SECURITY_FLAG_IGNORE_WRONG_USAGE))
    {
        pPolicyStatus->dwError = CERT_E_WRONG_USAGE;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_NOT_VALID_FOR_USAGE, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_REVOKED && !(checks & SECURITY_FLAG_IGNORE_REVOCATION))
    {
        pPolicyStatus->dwError = CERT_E_REVOKED;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_REVOKED, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_IS_OFFLINE_REVOCATION &&
     !(checks & SECURITY_FLAG_IGNORE_REVOCATION))
    {
        pPolicyStatus->dwError = CERT_E_REVOCATION_FAILURE;
        find_element_with_error(pChainContext,
         CERT_TRUST_IS_OFFLINE_REVOCATION, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else if (pChainContext->TrustStatus.dwErrorStatus &
     CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT)
    {
        pPolicyStatus->dwError = CERT_E_CRITICAL;
        find_element_with_error(pChainContext,
         CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT, &pPolicyStatus->lChainIndex,
         &pPolicyStatus->lElementIndex);
    }
    else
        pPolicyStatus->dwError = NO_ERROR;
    /* We only need bother checking whether the name in the end certificate
     * matches if the chain is otherwise okay.
     */
    if (!pPolicyStatus->dwError && pPolicyPara &&
     pPolicyPara->cbSize >= sizeof(CERT_CHAIN_POLICY_PARA))
    {
        if (sslPara && sslPara->cbSize >= sizeof(HTTPSPolicyCallbackData))
        {
            if (sslPara->dwAuthType == AUTHTYPE_SERVER &&
             sslPara->pwszServerName &&
             !(checks & SECURITY_FLAG_IGNORE_CERT_CN_INVALID))
            {
                PCCERT_CONTEXT cert;
                PCERT_EXTENSION altNameExt;
                BOOL matches;
 
                cert = pChainContext->rgpChain[0]->rgpElement[0]->pCertContext;
                altNameExt = get_subject_alt_name_ext(cert->pCertInfo);
                /* If the alternate name extension exists, the name it contains
                 * is bound to the certificate, so make sure the name matches
                 * it.  Otherwise, look for the server name in the subject
                 * distinguished name.  RFC5280, section 4.2.1.6:
                 * "Whenever such identities are to be bound into a
                 *  certificate, the subject alternative name (or issuer
                 *  alternative name) extension MUST be used; however, a DNS
                 *  name MAY also be represented in the subject field using the
                 *  domainComponent attribute."
                 */
                if (altNameExt)
                    matches = match_dns_to_subject_alt_name(altNameExt,
                     sslPara->pwszServerName);
                else
                    matches = match_dns_to_subject_dn(cert,
                     sslPara->pwszServerName);
                if (!matches)
                {
                    pPolicyStatus->dwError = CERT_E_CN_NO_MATCH;
                    pPolicyStatus->lChainIndex = 0;
                    pPolicyStatus->lElementIndex = 0;
                }
            }
        }
    }
    return TRUE;
}

Referenced by CertVerifyCertificateChainPolicy().

WINE_DECLARE_DEBUG_CHANNEL()

WINE_DECLARE_DEBUG_CHANNEL

(

chain

)

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

crypt

)

Variable Documentation

default_cu_engine

CertificateChainEngine* default_cu_engine

static

Definition at line 160 of file chain.c.

Referenced by default_chain_engine_free(), and get_chain_engine().

default_lm_engine

CertificateChainEngine * default_lm_engine

static

Definition at line 160 of file chain.c.

Referenced by default_chain_engine_free(), and get_chain_engine().

msPubKey1

BYTE msPubKey1[]

static

Initial value:

= {
0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xdf,0x08,0xba,0xe3,0x3f,0x6e,
0x64,0x9b,0xf5,0x89,0xaf,0x28,0x96,0x4a,0x07,0x8f,0x1b,0x2e,0x8b,0x3e,0x1d,
0xfc,0xb8,0x80,0x69,0xa3,0xa1,0xce,0xdb,0xdf,0xb0,0x8e,0x6c,0x89,0x76,0x29,
0x4f,0xca,0x60,0x35,0x39,0xad,0x72,0x32,0xe0,0x0b,0xae,0x29,0x3d,0x4c,0x16,
0xd9,0x4b,0x3c,0x9d,0xda,0xc5,0xd3,0xd1,0x09,0xc9,0x2c,0x6f,0xa6,0xc2,0x60,
0x53,0x45,0xdd,0x4b,0xd1,0x55,0xcd,0x03,0x1c,0xd2,0x59,0x56,0x24,0xf3,0xe5,
0x78,0xd8,0x07,0xcc,0xd8,0xb3,0x1f,0x90,0x3f,0xc0,0x1a,0x71,0x50,0x1d,0x2d,
0xa7,0x12,0x08,0x6d,0x7c,0xb0,0x86,0x6c,0xc7,0xba,0x85,0x32,0x07,0xe1,0x61,
0x6f,0xaf,0x03,0xc5,0x6d,0xe5,0xd6,0xa1,0x8f,0x36,0xf6,0xc1,0x0b,0xd1,0x3e,
0x69,0x97,0x48,0x72,0xc9,0x7f,0xa4,0xc8,0xc2,0x4a,0x4c,0x7e,0xa1,0xd1,0x94,
0xa6,0xd7,0xdc,0xeb,0x05,0x46,0x2e,0xb8,0x18,0xb4,0x57,0x1d,0x86,0x49,0xdb,
0x69,0x4a,0x2c,0x21,0xf5,0x5e,0x0f,0x54,0x2d,0x5a,0x43,0xa9,0x7a,0x7e,0x6a,
0x8e,0x50,0x4d,0x25,0x57,0xa1,0xbf,0x1b,0x15,0x05,0x43,0x7b,0x2c,0x05,0x8d,
0xbd,0x3d,0x03,0x8c,0x93,0x22,0x7d,0x63,0xea,0x0a,0x57,0x05,0x06,0x0a,0xdb,
0x61,0x98,0x65,0x2d,0x47,0x49,0xa8,0xe7,0xe6,0x56,0x75,0x5c,0xb8,0x64,0x08,
0x63,0xa9,0x30,0x40,0x66,0xb2,0xf9,0xb6,0xe3,0x34,0xe8,0x67,0x30,0xe1,0x43,
0x0b,0x87,0xff,0xc9,0xbe,0x72,0x10,0x5e,0x23,0xf0,0x9b,0xa7,0x48,0x65,0xbf,
0x09,0x88,0x7b,0xcd,0x72,0xbc,0x2e,0x79,0x9b,0x7b,0x02,0x03,0x01,0x00,0x01 }

Definition at line 3586 of file chain.c.

Referenced by verify_ms_root_policy().

msPubKey2

BYTE msPubKey2[]

static

Initial value:

= {
0x30,0x82,0x01,0x0a,0x02,0x82,0x01,0x01,0x00,0xa9,0x02,0xbd,0xc1,0x70,0xe6,
0x3b,0xf2,0x4e,0x1b,0x28,0x9f,0x97,0x78,0x5e,0x30,0xea,0xa2,0xa9,0x8d,0x25,
0x5f,0xf8,0xfe,0x95,0x4c,0xa3,0xb7,0xfe,0x9d,0xa2,0x20,0x3e,0x7c,0x51,0xa2,
0x9b,0xa2,0x8f,0x60,0x32,0x6b,0xd1,0x42,0x64,0x79,0xee,0xac,0x76,0xc9,0x54,
0xda,0xf2,0xeb,0x9c,0x86,0x1c,0x8f,0x9f,0x84,0x66,0xb3,0xc5,0x6b,0x7a,0x62,
0x23,0xd6,0x1d,0x3c,0xde,0x0f,0x01,0x92,0xe8,0x96,0xc4,0xbf,0x2d,0x66,0x9a,
0x9a,0x68,0x26,0x99,0xd0,0x3a,0x2c,0xbf,0x0c,0xb5,0x58,0x26,0xc1,0x46,0xe7,
0x0a,0x3e,0x38,0x96,0x2c,0xa9,0x28,0x39,0xa8,0xec,0x49,0x83,0x42,0xe3,0x84,
0x0f,0xbb,0x9a,0x6c,0x55,0x61,0xac,0x82,0x7c,0xa1,0x60,0x2d,0x77,0x4c,0xe9,
0x99,0xb4,0x64,0x3b,0x9a,0x50,0x1c,0x31,0x08,0x24,0x14,0x9f,0xa9,0xe7,0x91,
0x2b,0x18,0xe6,0x3d,0x98,0x63,0x14,0x60,0x58,0x05,0x65,0x9f,0x1d,0x37,0x52,
0x87,0xf7,0xa7,0xef,0x94,0x02,0xc6,0x1b,0xd3,0xbf,0x55,0x45,0xb3,0x89,0x80,
0xbf,0x3a,0xec,0x54,0x94,0x4e,0xae,0xfd,0xa7,0x7a,0x6d,0x74,0x4e,0xaf,0x18,
0xcc,0x96,0x09,0x28,0x21,0x00,0x57,0x90,0x60,0x69,0x37,0xbb,0x4b,0x12,0x07,
0x3c,0x56,0xff,0x5b,0xfb,0xa4,0x66,0x0a,0x08,0xa6,0xd2,0x81,0x56,0x57,0xef,
0xb6,0x3b,0x5e,0x16,0x81,0x77,0x04,0xda,0xf6,0xbe,0xae,0x80,0x95,0xfe,0xb0,
0xcd,0x7f,0xd6,0xa7,0x1a,0x72,0x5c,0x3c,0xca,0xbc,0xf0,0x08,0xa3,0x22,0x30,
0xb3,0x06,0x85,0xc9,0xb3,0x20,0x77,0x13,0x85,0xdf,0x02,0x03,0x01,0x00,0x01 }

Definition at line 3605 of file chain.c.

Referenced by verify_ms_root_policy().

msPubKey3

BYTE msPubKey3[]

static

Definition at line 3624 of file chain.c.

Referenced by verify_ms_root_policy().

msPubKey4

BYTE msPubKey4[]

static

Definition at line 3662 of file chain.c.

Referenced by verify_ms_root_policy().

msPubKey5

BYTE msPubKey5[]

static

Definition at line 3700 of file chain.c.

Referenced by verify_ms_root_policy().

msTestPubKey1

BYTE msTestPubKey1[]

static

Initial value:

= {
0x30,0x47,0x02,0x40,0x81,0x55,0x22,0xb9,0x8a,0xa4,0x6f,0xed,0xd6,0xe7,0xd9,
0x66,0x0f,0x55,0xbc,0xd7,0xcd,0xd5,0xbc,0x4e,0x40,0x02,0x21,0xa2,0xb1,0xf7,
0x87,0x30,0x85,0x5e,0xd2,0xf2,0x44,0xb9,0xdc,0x9b,0x75,0xb6,0xfb,0x46,0x5f,
0x42,0xb6,0x9d,0x23,0x36,0x0b,0xde,0x54,0x0f,0xcd,0xbd,0x1f,0x99,0x2a,0x10,
0x58,0x11,0xcb,0x40,0xcb,0xb5,0xa7,0x41,0x02,0x03,0x01,0x00,0x01 }

Definition at line 3061 of file chain.c.

Referenced by verify_authenticode_policy().

msTestPubKey2

BYTE msTestPubKey2[]

static

Initial value:

= {
0x30,0x47,0x02,0x40,0x9c,0x50,0x05,0x1d,0xe2,0x0e,0x4c,0x53,0xd8,0xd9,0xb5,
0xe5,0xfd,0xe9,0xe3,0xad,0x83,0x4b,0x80,0x08,0xd9,0xdc,0xe8,0xe8,0x35,0xf8,
0x11,0xf1,0xe9,0x9b,0x03,0x7a,0x65,0x64,0x76,0x35,0xce,0x38,0x2c,0xf2,0xb6,
0x71,0x9e,0x06,0xd9,0xbf,0xbb,0x31,0x69,0xa3,0xf6,0x30,0xa0,0x78,0x7b,0x18,
0xdd,0x50,0x4d,0x79,0x1e,0xeb,0x61,0xc1,0x02,0x03,0x01,0x00,0x01 }

Definition at line 3067 of file chain.c.

Referenced by verify_authenticode_policy().