diff options
Diffstat (limited to 'security/nss/lib/certhigh/certreq.c')
| -rw-r--r-- | security/nss/lib/certhigh/certreq.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/security/nss/lib/certhigh/certreq.c b/security/nss/lib/certhigh/certreq.c new file mode 100644 index 0000000000..2ab4f1ab7b --- /dev/null +++ b/security/nss/lib/certhigh/certreq.c @@ -0,0 +1,331 @@ +/* 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/. */ + +#include "cert.h" +#include "certt.h" +#include "secder.h" +#include "keyhi.h" +#include "secitem.h" +#include "secasn1.h" +#include "secerr.h" + +SEC_ASN1_MKSUB(SEC_AnyTemplate) + +const SEC_ASN1Template CERT_AttributeTemplate[] = { + { SEC_ASN1_SEQUENCE, + 0, NULL, sizeof(CERTAttribute) }, + { SEC_ASN1_OBJECT_ID, offsetof(CERTAttribute, attrType) }, + { SEC_ASN1_SET_OF | SEC_ASN1_XTRN, offsetof(CERTAttribute, attrValue), + SEC_ASN1_SUB(SEC_AnyTemplate) }, + { 0 } +}; + +const SEC_ASN1Template CERT_SetOfAttributeTemplate[] = { + { SEC_ASN1_SET_OF, 0, CERT_AttributeTemplate }, +}; + +const SEC_ASN1Template CERT_CertificateRequestTemplate[] = { + { SEC_ASN1_SEQUENCE, + 0, NULL, sizeof(CERTCertificateRequest) }, + { SEC_ASN1_INTEGER, + offsetof(CERTCertificateRequest, version) }, + { SEC_ASN1_INLINE, + offsetof(CERTCertificateRequest, subject), + CERT_NameTemplate }, + { SEC_ASN1_INLINE, + offsetof(CERTCertificateRequest, subjectPublicKeyInfo), + CERT_SubjectPublicKeyInfoTemplate }, + { SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC | 0, + offsetof(CERTCertificateRequest, attributes), + CERT_SetOfAttributeTemplate }, + { 0 } +}; + +SEC_ASN1_CHOOSER_IMPLEMENT(CERT_CertificateRequestTemplate) + +CERTCertificate * +CERT_CreateCertificate(unsigned long serialNumber, + CERTName *issuer, + CERTValidity *validity, + CERTCertificateRequest *req) +{ + CERTCertificate *c; + int rv; + PLArenaPool *arena; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + + if (!arena) { + return (0); + } + + c = (CERTCertificate *)PORT_ArenaZAlloc(arena, sizeof(CERTCertificate)); + + if (!c) { + PORT_FreeArena(arena, PR_FALSE); + return 0; + } + + c->referenceCount = 1; + c->arena = arena; + + /* + * Default is a plain version 1. + * If extensions are added, it will get changed as appropriate. + */ + rv = DER_SetUInteger(arena, &c->version, SEC_CERTIFICATE_VERSION_1); + if (rv) + goto loser; + + rv = DER_SetUInteger(arena, &c->serialNumber, serialNumber); + if (rv) + goto loser; + + rv = CERT_CopyName(arena, &c->issuer, issuer); + if (rv) + goto loser; + + rv = CERT_CopyValidity(arena, &c->validity, validity); + if (rv) + goto loser; + + rv = CERT_CopyName(arena, &c->subject, &req->subject); + if (rv) + goto loser; + rv = SECKEY_CopySubjectPublicKeyInfo(arena, &c->subjectPublicKeyInfo, + &req->subjectPublicKeyInfo); + if (rv) + goto loser; + + return c; + +loser: + CERT_DestroyCertificate(c); + return 0; +} + +/************************************************************************/ +/* It's clear from the comments that the original author of this + * function expected the template for certificate requests to treat + * the attributes as a SET OF ANY. This function expected to be + * passed an array of SECItems each of which contained an already encoded + * Attribute. But the cert request template does not treat the + * Attributes as a SET OF ANY, and AFAIK never has. Instead the template + * encodes attributes as a SET OF xxxxxxx. That is, it expects to encode + * each of the Attributes, not have them pre-encoded. Consequently an + * array of SECItems containing encoded Attributes is of no value to this + * function. But we cannot change the signature of this public function. + * It must continue to take SECItems. + * + * I have recoded this function so that each SECItem contains an + * encoded cert extension. The encoded cert extensions form the list for the + * single attribute of the cert request. In this implementation there is at most + * one attribute and it is always of type SEC_OID_PKCS9_EXTENSION_REQUEST. + */ + +CERTCertificateRequest * +CERT_CreateCertificateRequest(CERTName *subject, + CERTSubjectPublicKeyInfo *spki, + SECItem **attributes) +{ + CERTCertificateRequest *certreq; + PLArenaPool *arena; + CERTAttribute *attribute; + SECOidData *oidData; + SECStatus rv; + int i = 0; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if (arena == NULL) { + return NULL; + } + + certreq = PORT_ArenaZNew(arena, CERTCertificateRequest); + if (!certreq) { + PORT_FreeArena(arena, PR_FALSE); + return NULL; + } + /* below here it is safe to goto loser */ + + certreq->arena = arena; + + rv = DER_SetUInteger(arena, &certreq->version, + SEC_CERTIFICATE_REQUEST_VERSION); + if (rv != SECSuccess) + goto loser; + + rv = CERT_CopyName(arena, &certreq->subject, subject); + if (rv != SECSuccess) + goto loser; + + rv = SECKEY_CopySubjectPublicKeyInfo(arena, + &certreq->subjectPublicKeyInfo, + spki); + if (rv != SECSuccess) + goto loser; + + certreq->attributes = PORT_ArenaZNewArray(arena, CERTAttribute *, 2); + if (!certreq->attributes) + goto loser; + + /* Copy over attribute information */ + if (!attributes || !attributes[0]) { + /* + ** Invent empty attribute information. According to the + ** pkcs#10 spec, attributes has this ASN.1 type: + ** + ** attributes [0] IMPLICIT Attributes + ** + ** Which means, we should create a NULL terminated list + ** with the first entry being NULL; + */ + certreq->attributes[0] = NULL; + return certreq; + } + + /* allocate space for attributes */ + attribute = PORT_ArenaZNew(arena, CERTAttribute); + if (!attribute) + goto loser; + + oidData = SECOID_FindOIDByTag(SEC_OID_PKCS9_EXTENSION_REQUEST); + PORT_Assert(oidData); + if (!oidData) + goto loser; + rv = SECITEM_CopyItem(arena, &attribute->attrType, &oidData->oid); + if (rv != SECSuccess) + goto loser; + + for (i = 0; attributes[i] != NULL; i++) + ; + attribute->attrValue = PORT_ArenaZNewArray(arena, SECItem *, i + 1); + if (!attribute->attrValue) + goto loser; + + /* copy attributes */ + for (i = 0; attributes[i]; i++) { + /* + ** Attributes are a SetOf Attribute which implies + ** lexigraphical ordering. It is assumes that the + ** attributes are passed in sorted. If we need to + ** add functionality to sort them, there is an + ** example in the PKCS 7 code. + */ + attribute->attrValue[i] = SECITEM_ArenaDupItem(arena, attributes[i]); + if (!attribute->attrValue[i]) + goto loser; + } + + certreq->attributes[0] = attribute; + + return certreq; + +loser: + CERT_DestroyCertificateRequest(certreq); + return NULL; +} + +void +CERT_DestroyCertificateRequest(CERTCertificateRequest *req) +{ + if (req && req->arena) { + PORT_FreeArena(req->arena, PR_FALSE); + } + return; +} + +static void +setCRExt(void *o, CERTCertExtension **exts) +{ + ((CERTCertificateRequest *)o)->attributes = (struct CERTAttributeStr **)exts; +} + +/* +** Set up to start gathering cert extensions for a cert request. +** The list is created as CertExtensions and converted to an +** attribute list by CERT_FinishCRAttributes(). + */ +extern void *cert_StartExtensions(void *owner, PLArenaPool *ownerArena, + void (*setExts)(void *object, CERTCertExtension **exts)); +void * +CERT_StartCertificateRequestAttributes(CERTCertificateRequest *req) +{ + return (cert_StartExtensions((void *)req, req->arena, setCRExt)); +} + +/* +** At entry req->attributes actually contains an list of cert extensions-- +** req-attributes is overloaded until the list is DER encoded (the first +** ...EncodeItem() below). +** We turn this into an attribute list by encapsulating it +** in a PKCS 10 Attribute structure + */ +SECStatus +CERT_FinishCertificateRequestAttributes(CERTCertificateRequest *req) +{ + SECItem *extlist; + SECOidData *oidrec; + CERTAttribute *attribute; + + if (!req || !req->arena) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (req->attributes == NULL || req->attributes[0] == NULL) + return SECSuccess; + + extlist = SEC_ASN1EncodeItem(req->arena, NULL, &req->attributes, + SEC_ASN1_GET(CERT_SequenceOfCertExtensionTemplate)); + if (extlist == NULL) + return (SECFailure); + + oidrec = SECOID_FindOIDByTag(SEC_OID_PKCS9_EXTENSION_REQUEST); + if (oidrec == NULL) + return SECFailure; + + /* now change the list of cert extensions into a list of attributes + */ + req->attributes = PORT_ArenaZNewArray(req->arena, CERTAttribute *, 2); + + attribute = PORT_ArenaZNew(req->arena, CERTAttribute); + + if (req->attributes == NULL || attribute == NULL || + SECITEM_CopyItem(req->arena, &attribute->attrType, &oidrec->oid) != 0) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + return SECFailure; + } + attribute->attrValue = PORT_ArenaZNewArray(req->arena, SECItem *, 2); + + if (attribute->attrValue == NULL) + return SECFailure; + + attribute->attrValue[0] = extlist; + attribute->attrValue[1] = NULL; + req->attributes[0] = attribute; + req->attributes[1] = NULL; + + return SECSuccess; +} + +SECStatus +CERT_GetCertificateRequestExtensions(CERTCertificateRequest *req, + CERTCertExtension ***exts) +{ + if (req == NULL || exts == NULL) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + if (req->attributes == NULL || *req->attributes == NULL) + return SECSuccess; + + if ((*req->attributes)->attrValue == NULL) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + return (SEC_ASN1DecodeItem(req->arena, exts, + SEC_ASN1_GET(CERT_SequenceOfCertExtensionTemplate), + (*req->attributes)->attrValue[0])); +} |