chain.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wincrypt.h"
#include "wininet.h"
#include "wine/debug.h"
#include "wine/unicode.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	NONAMELESSUNION
#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, LPCWSTR 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 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 const WCHAR	rootW [] = { 'R','o','o','t',0 }
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 []

Macro Definition Documentation

CERT_CHAIN_PARA_HAS_EXTRA_FIELDS

#define CERT_CHAIN_PARA_HAS_EXTRA_FIELDS

Definition at line 23 of file chain.c.

CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS

#define CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS

Definition at line 24 of file chain.c.

CHAIN_QUALITY_BASIC_CONSTRAINTS

#define CHAIN_QUALITY_BASIC_CONSTRAINTS   2

Definition at line 2517 of file chain.c.

CHAIN_QUALITY_COMPLETE_CHAIN

#define CHAIN_QUALITY_COMPLETE_CHAIN   4

Definition at line 2516 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 2520 of file chain.c.

CHAIN_QUALITY_SIGNATURE_VALID

#define CHAIN_QUALITY_SIGNATURE_VALID   0x16

Definition at line 2514 of file chain.c.

CHAIN_QUALITY_TIME_VALID

#define CHAIN_QUALITY_TIME_VALID   8

Definition at line 2515 of file chain.c.

CHAIN_QUALITY_TRUSTED_ROOT

#define CHAIN_QUALITY_TRUSTED_ROOT   1

Definition at line 2518 of file chain.c.

DEFAULT_CYCLE_MODULUS

#define DEFAULT_CYCLE_MODULUS   7

Definition at line 34 of file chain.c.

IS_TRUST_ERROR_SET

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

Definition at line 2525 of file chain.c.

NONAMELESSUNION

#define NONAMELESSUNION

Definition at line 20 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 3702 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 886 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->u.pwszURL,
             name->u.pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_DNS_NAME:
            match = dns_name_matches(constraint->u.pwszURL,
             name->u.pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_URL:
            match = url_matches(constraint->u.pwszURL,
             name->u.pwszURL, trustErrorStatus);
            break;
        case CERT_ALT_NAME_IP_ADDRESS:
            match = ip_address_matches(&constraint->u.IPAddress,
             &name->u.IPAddress, trustErrorStatus);
            break;
        case CERT_ALT_NAME_DIRECTORY_NAME:
            match = directory_name_matches(&constraint->u.DirectoryName,
             &name->u.DirectoryName);
            break;
        default:
            ERR("name choice %d 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 929 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 941 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 225 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 CRYPTDLG_MakeEngine(), and save_pfx().

CertDuplicateCertificateChain()

PCCERT_CHAIN_CONTEXT WINAPI CertDuplicateCertificateChain

(

PCCERT_CHAIN_CONTEXT

pChainContext

)

Definition at line 2948 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 2973 of file chain.c.

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

CertFreeCertificateChain()

VOID WINAPI CertFreeCertificateChain

(

PCCERT_CHAIN_CONTEXT

pChainContext

)

Definition at line 2960 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(), CRYPT_FreeLowerQualityChains(), InitFunctionPtrs(), netconn_verify_cert(), save_cert_as_cms(), save_pfx(), server_release(), and SoftpubCleanup().

CertFreeCertificateChainEngine()

void WINAPI CertFreeCertificateChainEngine

(

HCERTCHAINENGINE

hChainEngine

)

Definition at line 249 of file chain.c.

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

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

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 2879 of file chain.c.

{
    CertificateChainEngine *engine;
    BOOL ret;
    CertificateChain *chain = NULL;

    TRACE("(%p, %p, %s, %p, %p, %08x, %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: %08x\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(), netconn_verify_cert(), save_cert_as_cms(), save_pfx(), testGetCertChain(), 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 3716 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 (%08x)\n", ret, pPolicyStatus->dwError);
    return ret;
}

Referenced by netconn_verify_cert(), SoftpubAuthenticode(), 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 967 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 %d 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 %d 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 1126 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->u.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->u.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 1057 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 2586 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 427 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 52 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 2442 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 2251 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 2181 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 2528 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 580 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 %d 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 %d\n",
                 chainConstraints->dwPathLenConstraint);
                chainConstraints->fPathLenConstraint = TRUE;
                chainConstraints->dwPathLenConstraint =
                 constraints.dwPathLenConstraint;
            }
        }
    }
    if (chainConstraints->fPathLenConstraint &&
     remainingCAs > chainConstraints->dwPathLenConstraint)
    {
        TRACE_(chain)("remaining CAs %d exceed max path length %d\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 1279 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 1381 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 1196 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 1357 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, rootW);
        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 491 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 1879 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 %d 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 383 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 478 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 2745 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 2554 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 61 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 416 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 2377 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 2296 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];

    static const WCHAR caW[] = { 'C','A',0 };
    static const WCHAR myW[] = { 'M','y',0 };
    static const WCHAR trustW[] = { 'T','r','u','s','t',0 };

    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, rootW);
        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, caW);
    worldStores[2] = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, myW);
    worldStores[3] = CertOpenStore(CERT_STORE_PROV_SYSTEM_W, 0, 0, system_store, trustW);

    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 1802 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 513 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 1982 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 = HeapAlloc(GetProcessHeap(), 0, 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: %u\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;
            }
        }
    }

    HeapFree(GetProcessHeap(), 0, 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 2611 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 2362 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 377 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 2351 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 468 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 2056 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.u.IssuerSerialNumber.Issuer, &info->CertIssuer,
                 sizeof(CERT_NAME_BLOB));
                memcpy(&id.u.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.u.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.u.IssuerSerialNumber.Issuer,
                     &directoryName->u.DirectoryName, sizeof(CERT_NAME_BLOB));
                    memcpy(&id.u.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.u.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 1215 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 1339 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 2220 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 268 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->u.