diff options
Diffstat (limited to 'crypto/x509/x509_trs.c')
-rw-r--r-- | crypto/x509/x509_trs.c | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/crypto/x509/x509_trs.c b/crypto/x509/x509_trs.c deleted file mode 100644 index a10d437735b8..000000000000 --- a/crypto/x509/x509_trs.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#include <stdio.h> -#include "internal/cryptlib.h" -#include <openssl/x509v3.h> -#include "crypto/x509.h" - -static int tr_cmp(const X509_TRUST *const *a, const X509_TRUST *const *b); -static void trtable_free(X509_TRUST *p); - -static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags); -static int trust_1oid(X509_TRUST *trust, X509 *x, int flags); -static int trust_compat(X509_TRUST *trust, X509 *x, int flags); - -static int obj_trust(int id, X509 *x, int flags); -static int (*default_trust) (int id, X509 *x, int flags) = obj_trust; - -/* - * WARNING: the following table should be kept in order of trust and without - * any gaps so we can just subtract the minimum trust value to get an index - * into the table - */ - -static X509_TRUST trstandard[] = { - {X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL}, - {X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth, - NULL}, - {X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth, - NULL}, - {X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect, - NULL}, - {X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign, - NULL}, - {X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign, - NULL}, - {X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP, - NULL}, - {X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL} -}; - -#define X509_TRUST_COUNT OSSL_NELEM(trstandard) - -static STACK_OF(X509_TRUST) *trtable = NULL; - -static int tr_cmp(const X509_TRUST *const *a, const X509_TRUST *const *b) -{ - return (*a)->trust - (*b)->trust; -} - -int (*X509_TRUST_set_default(int (*trust) (int, X509 *, int))) (int, X509 *, - int) { - int (*oldtrust) (int, X509 *, int); - oldtrust = default_trust; - default_trust = trust; - return oldtrust; -} - -int X509_check_trust(X509 *x, int id, int flags) -{ - X509_TRUST *pt; - int idx; - - /* We get this as a default value */ - if (id == X509_TRUST_DEFAULT) - return obj_trust(NID_anyExtendedKeyUsage, x, - flags | X509_TRUST_DO_SS_COMPAT); - idx = X509_TRUST_get_by_id(id); - if (idx == -1) - return default_trust(id, x, flags); - pt = X509_TRUST_get0(idx); - return pt->check_trust(pt, x, flags); -} - -int X509_TRUST_get_count(void) -{ - if (!trtable) - return X509_TRUST_COUNT; - return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT; -} - -X509_TRUST *X509_TRUST_get0(int idx) -{ - if (idx < 0) - return NULL; - if (idx < (int)X509_TRUST_COUNT) - return trstandard + idx; - return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT); -} - -int X509_TRUST_get_by_id(int id) -{ - X509_TRUST tmp; - int idx; - - if ((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX)) - return id - X509_TRUST_MIN; - if (trtable == NULL) - return -1; - tmp.trust = id; - idx = sk_X509_TRUST_find(trtable, &tmp); - if (idx < 0) - return -1; - return idx + X509_TRUST_COUNT; -} - -int X509_TRUST_set(int *t, int trust) -{ - if (X509_TRUST_get_by_id(trust) == -1) { - X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST); - return 0; - } - *t = trust; - return 1; -} - -int X509_TRUST_add(int id, int flags, int (*ck) (X509_TRUST *, X509 *, int), - const char *name, int arg1, void *arg2) -{ - int idx; - X509_TRUST *trtmp; - /* - * This is set according to what we change: application can't set it - */ - flags &= ~X509_TRUST_DYNAMIC; - /* This will always be set for application modified trust entries */ - flags |= X509_TRUST_DYNAMIC_NAME; - /* Get existing entry if any */ - idx = X509_TRUST_get_by_id(id); - /* Need a new entry */ - if (idx == -1) { - if ((trtmp = OPENSSL_malloc(sizeof(*trtmp))) == NULL) { - X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE); - return 0; - } - trtmp->flags = X509_TRUST_DYNAMIC; - } else - trtmp = X509_TRUST_get0(idx); - - /* OPENSSL_free existing name if dynamic */ - if (trtmp->flags & X509_TRUST_DYNAMIC_NAME) - OPENSSL_free(trtmp->name); - /* dup supplied name */ - if ((trtmp->name = OPENSSL_strdup(name)) == NULL) { - X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE); - goto err; - } - /* Keep the dynamic flag of existing entry */ - trtmp->flags &= X509_TRUST_DYNAMIC; - /* Set all other flags */ - trtmp->flags |= flags; - - trtmp->trust = id; - trtmp->check_trust = ck; - trtmp->arg1 = arg1; - trtmp->arg2 = arg2; - - /* If its a new entry manage the dynamic table */ - if (idx == -1) { - if (trtable == NULL - && (trtable = sk_X509_TRUST_new(tr_cmp)) == NULL) { - X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE); - goto err;; - } - if (!sk_X509_TRUST_push(trtable, trtmp)) { - X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE); - goto err; - } - } - return 1; - err: - if (idx == -1) { - OPENSSL_free(trtmp->name); - OPENSSL_free(trtmp); - } - return 0; -} - -static void trtable_free(X509_TRUST *p) -{ - if (!p) - return; - if (p->flags & X509_TRUST_DYNAMIC) { - if (p->flags & X509_TRUST_DYNAMIC_NAME) - OPENSSL_free(p->name); - OPENSSL_free(p); - } -} - -void X509_TRUST_cleanup(void) -{ - sk_X509_TRUST_pop_free(trtable, trtable_free); - trtable = NULL; -} - -int X509_TRUST_get_flags(const X509_TRUST *xp) -{ - return xp->flags; -} - -char *X509_TRUST_get0_name(const X509_TRUST *xp) -{ - return xp->name; -} - -int X509_TRUST_get_trust(const X509_TRUST *xp) -{ - return xp->trust; -} - -static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags) -{ - /* - * Declare the chain verified if the desired trust OID is not rejected in - * any auxiliary trust info for this certificate, and the OID is either - * expressly trusted, or else either "anyEKU" is trusted, or the - * certificate is self-signed. - */ - flags |= X509_TRUST_DO_SS_COMPAT | X509_TRUST_OK_ANY_EKU; - return obj_trust(trust->arg1, x, flags); -} - -static int trust_1oid(X509_TRUST *trust, X509 *x, int flags) -{ - /* - * Declare the chain verified only if the desired trust OID is not - * rejected and is expressly trusted. Neither "anyEKU" nor "compat" - * trust in self-signed certificates apply. - */ - flags &= ~(X509_TRUST_DO_SS_COMPAT | X509_TRUST_OK_ANY_EKU); - return obj_trust(trust->arg1, x, flags); -} - -static int trust_compat(X509_TRUST *trust, X509 *x, int flags) -{ - /* Call for side-effect of computing hash and caching extensions */ - if (X509_check_purpose(x, -1, 0) != 1) - return X509_TRUST_UNTRUSTED; - if ((flags & X509_TRUST_NO_SS_COMPAT) == 0 && (x->ex_flags & EXFLAG_SS)) - return X509_TRUST_TRUSTED; - else - return X509_TRUST_UNTRUSTED; -} - -static int obj_trust(int id, X509 *x, int flags) -{ - X509_CERT_AUX *ax = x->aux; - int i; - - if (ax && ax->reject) { - for (i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) { - ASN1_OBJECT *obj = sk_ASN1_OBJECT_value(ax->reject, i); - int nid = OBJ_obj2nid(obj); - - if (nid == id || (nid == NID_anyExtendedKeyUsage && - (flags & X509_TRUST_OK_ANY_EKU))) - return X509_TRUST_REJECTED; - } - } - - if (ax && ax->trust) { - for (i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) { - ASN1_OBJECT *obj = sk_ASN1_OBJECT_value(ax->trust, i); - int nid = OBJ_obj2nid(obj); - - if (nid == id || (nid == NID_anyExtendedKeyUsage && - (flags & X509_TRUST_OK_ANY_EKU))) - return X509_TRUST_TRUSTED; - } - /* - * Reject when explicit trust EKU are set and none match. - * - * Returning untrusted is enough for for full chains that end in - * self-signed roots, because when explicit trust is specified it - * suppresses the default blanket trust of self-signed objects. - * - * But for partial chains, this is not enough, because absent a similar - * trust-self-signed policy, non matching EKUs are indistinguishable - * from lack of EKU constraints. - * - * Therefore, failure to match any trusted purpose must trigger an - * explicit reject. - */ - return X509_TRUST_REJECTED; - } - - if ((flags & X509_TRUST_DO_SS_COMPAT) == 0) - return X509_TRUST_UNTRUSTED; - - /* - * Not rejected, and there is no list of accepted uses, try compat. - */ - return trust_compat(NULL, x, flags); -} |