Delete bundled copy of NSS and replace with README.

nss/lib/certhigh/ocspti.h

Index: nss/lib/certhigh/ocspti.h
diff --git a/nss/lib/certhigh/ocspti.h b/nss/lib/certhigh/ocspti.h
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-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
- * Private header defining OCSP types.
- */
-
-#ifndef _OCSPTI_H_
-#define _OCSPTI_H_
-
-#include "ocspt.h"
-
-#include "certt.h"
-#include "plarena.h"
-#include "seccomon.h"
-#include "secoidt.h"
-
-/*
- * Some notes about naming conventions...
- *
- * The public data types all start with "CERTOCSP" (e.g. CERTOCSPRequest).
- * (Even the public types are opaque, however.  Only their names are
- * "exported".)
- *
- * Internal-only data types drop the "CERT" prefix and use only the
- * lower-case "ocsp" (e.g. ocspTBSRequest), for brevity sake.
- *
- * In either case, the base/suffix of the type name usually matches the
- * name as defined in the OCSP specification.  The exceptions to this are:
- *  - When there is overlap between the "OCSP" or "ocsp" prefix and
- *    the name used in the standard.  That is, you cannot strip off the
- *    "CERTOCSP" or "ocsp" prefix and necessarily get the name of the
- *    type as it is defined in the standard; the "real" name will be
- *    *either* "OCSPSuffix" or just "Suffix".
- *  - When the name in the standard was a little too generic.  (e.g. The
- *    standard defines "Request" but we call it a "SingleRequest".)
- *    In this case a comment above the type definition calls attention
- *    to the difference.
- *
- * The definitions laid out in this header file are intended to follow
- * the same order as the definitions in the OCSP specification itself.
- * With the OCSP standard in hand, you should be able to move through
- * this file and follow along.  To future modifiers of this file: please
- * try to keep it that way.  The only exceptions are the few cases where
- * we need to define a type before it is referenced (e.g. enumerations),
- * whereas in the OCSP specification these are usually defined the other
- * way around (reference before definition).
- */
-
-/*
- * Forward-declarations of internal-only data structures.
- *
- * These are in alphabetical order (case-insensitive); please keep it that way!
- */
-typedef struct ocspBasicOCSPResponseStr ocspBasicOCSPResponse;
-typedef struct ocspCertStatusStr ocspCertStatus;
-typedef struct ocspResponderIDStr ocspResponderID;
-typedef struct ocspResponseBytesStr ocspResponseBytes;
-typedef struct ocspResponseDataStr ocspResponseData;
-typedef struct ocspRevokedInfoStr ocspRevokedInfo;
-typedef struct ocspServiceLocatorStr ocspServiceLocator;
-typedef struct ocspSignatureStr ocspSignature;
-typedef struct ocspSingleRequestStr ocspSingleRequest;
-typedef struct ocspSingleResponseStr ocspSingleResponse;
-typedef struct ocspTBSRequestStr ocspTBSRequest;
-
-/*
- * An OCSPRequest; this is what is sent (encoded) to an OCSP responder.
- */
-struct CERTOCSPRequestStr {
-    PLArenaPool *arena; /* local; not part of encoding */
-    ocspTBSRequest *tbsRequest;
-    ocspSignature *optionalSignature;
-};
-
-/*
- * A TBSRequest; when an OCSPRequest is signed, the encoding of this
- * is what the signature is actually applied to.  ("TBS" == To Be Signed)
- * Whether signed or not, however, this structure will be present, and
- * is the "meat" of the OCSPRequest.
- *
- * Note that the "requestorName" field cannot be encoded/decoded in the
- * same pass as the entire request -- it needs to be handled with a special
- * call to convert to/from our internal form of a GeneralName.  Thus the
- * "derRequestorName" field, which is the actual DER-encoded bytes.
- *
- * The "extensionHandle" field is used on creation only; it holds
- * in-progress extensions as they are optionally added to the request.
- */
-struct ocspTBSRequestStr {
-    SECItem version;                    /* an INTEGER */
-    SECItem *derRequestorName;          /* encoded GeneralName; see above */
-    CERTGeneralNameList *requestorName; /* local; not part of encoding */
-    ocspSingleRequest **requestList;
-    CERTCertExtension **requestExtensions;
-    void *extensionHandle; /* local; not part of encoding */
-};
-
-/*
- * This is the actual signature information for an OCSPRequest (applied to
- * the TBSRequest structure) or for a BasicOCSPResponse (applied to a
- * ResponseData structure).
- *
- * Note that the "signature" field itself is a BIT STRING; operations on
- * it need to keep that in mind, converting the length to bytes as needed
- * and back again afterward (so that the length is usually expressing bits).
- *
- * The "cert" field is the signer's certificate.  In the case of a received
- * signature, it will be filled in when the signature is verified.  In the
- * case of a created signature, it is filled in on creation and will be the
- * cert used to create the signature when the signing-and-encoding occurs,
- * as well as the cert (and its chain) to fill in derCerts if requested.
- *
- * The extra fields cache information about the signature after we have
- * attempted a verification.  "wasChecked", if true, means the signature
- * has been checked against the appropriate data and thus that "status"
- * contains the result of that verification.  If "status" is not SECSuccess,
- * "failureReason" is a copy of the error code that was set at the time;
- * presumably it tells why the signature verification failed.
- */
-struct ocspSignatureStr {
-    SECAlgorithmID signatureAlgorithm;
-    SECItem signature;     /* a BIT STRING */
-    SECItem **derCerts;    /* a SEQUENCE OF Certificate */
-    CERTCertificate *cert; /* local; not part of encoding */
-    PRBool wasChecked;     /* local; not part of encoding */
-    SECStatus status;      /* local; not part of encoding */
-    int failureReason;     /* local; not part of encoding */
-};
-
-/*
- * An OCSPRequest contains a SEQUENCE OF these, one for each certificate
- * whose status is being checked.
- *
- * Note that in the OCSP specification this is just called "Request",
- * but since that seemed confusing (vs. an OCSPRequest) and to be more
- * consistent with the parallel type "SingleResponse", I called it a
- * "SingleRequest".
- *
- * XXX figure out how to get rid of that arena -- there must be a way
- */
-struct ocspSingleRequestStr {
-    PLArenaPool *arena; /* just a copy of the response arena,
-					 * needed here for extension handling
-					 * routines, on creation only */
-    CERTOCSPCertID *reqCert;
-    CERTCertExtension **singleRequestExtensions;
-};
-
-/*
- * A CertID is the means of identifying a certificate, used both in requests
- * and in responses.
- *
- * When in a SingleRequest it specifies the certificate to be checked.
- * When in a SingleResponse it is the cert whose status is being given.
- */
-struct CERTOCSPCertIDStr {
-    SECAlgorithmID hashAlgorithm;
-    SECItem issuerNameHash;     /* an OCTET STRING */
-    SECItem issuerKeyHash;      /* an OCTET STRING */
-    SECItem serialNumber;       /* an INTEGER */
-    SECItem issuerSHA1NameHash; /* keep other hashes around when */
-    SECItem issuerMD5NameHash;  /* we have them */
-    SECItem issuerMD2NameHash;
-    SECItem issuerSHA1KeyHash; /* keep other hashes around when */
-    SECItem issuerMD5KeyHash;  /* we have them */
-    SECItem issuerMD2KeyHash;
-    PLArenaPool *poolp;
-};
-
-/*
- * This describes the value of the responseStatus field in an OCSPResponse.
- * The corresponding ASN.1 definition is:
- *
- * OCSPResponseStatus	::=	ENUMERATED {
- *	successful		(0),	--Response has valid confirmations
- *	malformedRequest	(1),	--Illegal confirmation request
- *	internalError		(2),	--Internal error in issuer
- *	tryLater		(3),	--Try again later
- *					--(4) is not used
- *	sigRequired		(5),	--Must sign the request
- *	unauthorized		(6),	--Request unauthorized
- * }
- */
-typedef enum {
-    ocspResponse_min = 0,
-    ocspResponse_successful = 0,
-    ocspResponse_malformedRequest = 1,
-    ocspResponse_internalError = 2,
-    ocspResponse_tryLater = 3,
-    ocspResponse_unused = 4,
-    ocspResponse_sigRequired = 5,
-    ocspResponse_unauthorized = 6,
-    ocspResponse_max = 6 /* Please update max when adding values.
-                          * Remember to also update arrays, e.g.
-                          * "responseStatusNames" in ocspclnt.c
-                          * and potentially other places. */
-} ocspResponseStatus;
-
-/*
- * An OCSPResponse is what is sent (encoded) by an OCSP responder.
- *
- * The field "responseStatus" is the ASN.1 encoded value; the field
- * "statusValue" is simply that same value translated into our local
- * type ocspResponseStatus.
- */
-struct CERTOCSPResponseStr {
-    PLArenaPool *arena;               /* local; not part of encoding */
-    SECItem responseStatus;           /* an ENUMERATED, see above */
-    ocspResponseStatus statusValue;   /* local; not part of encoding */
-    ocspResponseBytes *responseBytes; /* only when status is successful */
-};
-
-/*
- * A ResponseBytes (despite appearances) is what contains the meat
- * of a successful response -- but still in encoded form.  The type
- * given as "responseType" tells you how to decode the string.
- *
- * We look at the OID and translate it into our local OID representation
- * "responseTypeTag", and use that value to tell us how to decode the
- * actual response itself.  For now the only kind of OCSP response we
- * know about is a BasicOCSPResponse.  However, the intention in the
- * OCSP specification is to allow for other response types, so we are
- * building in that flexibility from the start and thus put a pointer
- * to that data structure inside of a union.  Whenever OCSP adds more
- * response types, just add them to the union.
- */
-struct ocspResponseBytesStr {
-    SECItem responseType;      /* an OBJECT IDENTIFIER */
-    SECOidTag responseTypeTag; /* local; not part of encoding */
-    SECItem response;          /* an OCTET STRING */
-    union {
-        ocspBasicOCSPResponse *basic; /* when type is id-pkix-ocsp-basic */
-    } decodedResponse;                /* local; not part of encoding */
-};
-
-/*
- * A BasicOCSPResponse -- when the responseType in a ResponseBytes is
- * id-pkix-ocsp-basic, the "response" OCTET STRING above is the DER
- * encoding of one of these.
- *
- * Note that in the OCSP specification, the signature fields are not
- * part of a separate sub-structure.  But since they are the same fields
- * as we define for the signature in a request, it made sense to share
- * the C data structure here and in some shared code to operate on them.
- */
-struct ocspBasicOCSPResponseStr {
-    SECItem tbsResponseDataDER;
-    ocspResponseData *tbsResponseData; /* "tbs" == To Be Signed */
-    ocspSignature responseSignature;
-};
-
-/*
- * A ResponseData is the part of a BasicOCSPResponse that is signed
- * (after it is DER encoded).  It contains the real details of the response
- * (a per-certificate status).
- */
-struct ocspResponseDataStr {
-    SECItem version; /* an INTEGER */
-    SECItem derResponderID;
-    ocspResponderID *responderID; /* local; not part of encoding */
-    SECItem producedAt;           /* a GeneralizedTime */
-    CERTOCSPSingleResponse **responses;
-    CERTCertExtension **responseExtensions;
-};
-
-struct ocspResponderIDStr {
-    CERTOCSPResponderIDType responderIDType; /* local; not part of encoding */
-    union {
-        CERTName name;   /* when ocspResponderID_byName */
-        SECItem keyHash; /* when ocspResponderID_byKey */
-        SECItem other;   /* when ocspResponderID_other */
-    } responderIDValue;
-};
-
-/*
- * The ResponseData in a BasicOCSPResponse contains a SEQUENCE OF
- * SingleResponse -- one for each certificate whose status is being supplied.
- *
- * XXX figure out how to get rid of that arena -- there must be a way
- */
-struct CERTOCSPSingleResponseStr {
-    PLArenaPool *arena; /* just a copy of the response arena,
-					 * needed here for extension handling
-					 * routines, on creation only */
-    CERTOCSPCertID *certID;
-    SECItem derCertStatus;
-    ocspCertStatus *certStatus; /* local; not part of encoding */
-    SECItem thisUpdate;         /* a GeneralizedTime */
-    SECItem *nextUpdate;        /* a GeneralizedTime */
-    CERTCertExtension **singleExtensions;
-};
-
-/*
- * A CertStatus is the actual per-certificate status.  Its ASN.1 definition:
- *
- * CertStatus	::=	CHOICE {
- *	good			[0] IMPLICIT NULL,
- *	revoked			[1] IMPLICIT RevokedInfo,
- *	unknown			[2] IMPLICIT UnknownInfo }
- *
- * (where for now UnknownInfo is defined to be NULL but in the
- * future may be replaced with an enumeration).
- *
- * Because it is CHOICE, the status value and its associated information
- * (if any) are actually encoded together.  To represent this same
- * information internally, we explicitly define a type and save it,
- * along with the value, into a data structure.
- */
-
-typedef enum {
-    ocspCertStatus_good,    /* cert is not revoked */
-    ocspCertStatus_revoked, /* cert is revoked */
-    ocspCertStatus_unknown, /* cert was unknown to the responder */
-    ocspCertStatus_other    /* status was not an expected value */
-} ocspCertStatusType;
-
-/*
- * This is the actual per-certificate status.
- *
- * The "goodInfo" and "unknownInfo" items are only place-holders for a NULL.
- * (Though someday OCSP may replace UnknownInfo with an enumeration that
- * gives more detailed information.)
- */
-struct ocspCertStatusStr {
-    ocspCertStatusType certStatusType; /* local; not part of encoding */
-    union {
-        SECItem *goodInfo;            /* when ocspCertStatus_good */
-        ocspRevokedInfo *revokedInfo; /* when ocspCertStatus_revoked */
-        SECItem *unknownInfo;         /* when ocspCertStatus_unknown */
-        SECItem *otherInfo;           /* when ocspCertStatus_other */
-    } certStatusInfo;
-};
-
-/*
- * A RevokedInfo gives information about a revoked certificate -- when it
- * was revoked and why.
- */
-struct ocspRevokedInfoStr {
-    SECItem revocationTime;    /* a GeneralizedTime */
-    SECItem *revocationReason; /* a CRLReason; ignored for now */
-};
-
-/*
- * ServiceLocator can be included as one of the singleRequestExtensions.
- * When added, it specifies the (name of the) issuer of the cert being
- * checked, and optionally the value of the AuthorityInfoAccess extension
- * if the cert has one.
- */
-struct ocspServiceLocatorStr {
-    CERTName *issuer;
-    SECItem locator; /* DER encoded authInfoAccess extension from cert */
-};
-
-#endif /* _OCSPTI_H_ */