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Unified Diff: openssl/crypto/x509v3/v3_asid.c

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master
Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago
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Index: openssl/crypto/x509v3/v3_asid.c
diff --git a/openssl/crypto/x509v3/v3_asid.c b/openssl/crypto/x509v3/v3_asid.c
deleted file mode 100644
index 1587e8ed7267372916fd38085fb873fa21d375e0..0000000000000000000000000000000000000000
--- a/openssl/crypto/x509v3/v3_asid.c
+++ /dev/null
@@ -1,890 +0,0 @@
-/*
- * Contributed to the OpenSSL Project by the American Registry for
- * Internet Numbers ("ARIN").
- */
-/* ====================================================================
- * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- */
-
-/*
- * Implementation of RFC 3779 section 3.2.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "cryptlib.h"
-#include <openssl/conf.h>
-#include <openssl/asn1.h>
-#include <openssl/asn1t.h>
-#include <openssl/x509v3.h>
-#include <openssl/x509.h>
-#include <openssl/bn.h>
-
-#ifndef OPENSSL_NO_RFC3779
-
-/*
- * OpenSSL ASN.1 template translation of RFC 3779 3.2.3.
- */
-
-ASN1_SEQUENCE(ASRange) = {
- ASN1_SIMPLE(ASRange, min, ASN1_INTEGER),
- ASN1_SIMPLE(ASRange, max, ASN1_INTEGER)
-} ASN1_SEQUENCE_END(ASRange)
-
-ASN1_CHOICE(ASIdOrRange) = {
- ASN1_SIMPLE(ASIdOrRange, u.id, ASN1_INTEGER),
- ASN1_SIMPLE(ASIdOrRange, u.range, ASRange)
-} ASN1_CHOICE_END(ASIdOrRange)
-
-ASN1_CHOICE(ASIdentifierChoice) = {
- ASN1_SIMPLE(ASIdentifierChoice, u.inherit, ASN1_NULL),
- ASN1_SEQUENCE_OF(ASIdentifierChoice, u.asIdsOrRanges, ASIdOrRange)
-} ASN1_CHOICE_END(ASIdentifierChoice)
-
-ASN1_SEQUENCE(ASIdentifiers) = {
- ASN1_EXP_OPT(ASIdentifiers, asnum, ASIdentifierChoice, 0),
- ASN1_EXP_OPT(ASIdentifiers, rdi, ASIdentifierChoice, 1)
-} ASN1_SEQUENCE_END(ASIdentifiers)
-
-IMPLEMENT_ASN1_FUNCTIONS(ASRange)
-IMPLEMENT_ASN1_FUNCTIONS(ASIdOrRange)
-IMPLEMENT_ASN1_FUNCTIONS(ASIdentifierChoice)
-IMPLEMENT_ASN1_FUNCTIONS(ASIdentifiers)
-
-/*
- * i2r method for an ASIdentifierChoice.
- */
-static int i2r_ASIdentifierChoice(BIO *out,
- ASIdentifierChoice *choice,
- int indent,
- const char *msg)
-{
- int i;
- char *s;
- if (choice == NULL)
- return 1;
- BIO_printf(out, "%*s%s:\n", indent, "", msg);
- switch (choice->type) {
- case ASIdentifierChoice_inherit:
- BIO_printf(out, "%*sinherit\n", indent + 2, "");
- break;
- case ASIdentifierChoice_asIdsOrRanges:
- for (i = 0; i < sk_ASIdOrRange_num(choice->u.asIdsOrRanges); i++) {
- ASIdOrRange *aor = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i);
- switch (aor->type) {
- case ASIdOrRange_id:
- if ((s = i2s_ASN1_INTEGER(NULL, aor->u.id)) == NULL)
- return 0;
- BIO_printf(out, "%*s%s\n", indent + 2, "", s);
- OPENSSL_free(s);
- break;
- case ASIdOrRange_range:
- if ((s = i2s_ASN1_INTEGER(NULL, aor->u.range->min)) == NULL)
- return 0;
- BIO_printf(out, "%*s%s-", indent + 2, "", s);
- OPENSSL_free(s);
- if ((s = i2s_ASN1_INTEGER(NULL, aor->u.range->max)) == NULL)
- return 0;
- BIO_printf(out, "%s\n", s);
- OPENSSL_free(s);
- break;
- default:
- return 0;
- }
- }
- break;
- default:
- return 0;
- }
- return 1;
-}
-
-/*
- * i2r method for an ASIdentifier extension.
- */
-static int i2r_ASIdentifiers(const X509V3_EXT_METHOD *method,
- void *ext,
- BIO *out,
- int indent)
-{
- ASIdentifiers *asid = ext;
- return (i2r_ASIdentifierChoice(out, asid->asnum, indent,
- "Autonomous System Numbers") &&
- i2r_ASIdentifierChoice(out, asid->rdi, indent,
- "Routing Domain Identifiers"));
-}
-
-/*
- * Sort comparision function for a sequence of ASIdOrRange elements.
- */
-static int ASIdOrRange_cmp(const ASIdOrRange * const *a_,
- const ASIdOrRange * const *b_)
-{
- const ASIdOrRange *a = *a_, *b = *b_;
-
- OPENSSL_assert((a->type == ASIdOrRange_id && a->u.id != NULL) ||
- (a->type == ASIdOrRange_range && a->u.range != NULL &&
- a->u.range->min != NULL && a->u.range->max != NULL));
-
- OPENSSL_assert((b->type == ASIdOrRange_id && b->u.id != NULL) ||
- (b->type == ASIdOrRange_range && b->u.range != NULL &&
- b->u.range->min != NULL && b->u.range->max != NULL));
-
- if (a->type == ASIdOrRange_id && b->type == ASIdOrRange_id)
- return ASN1_INTEGER_cmp(a->u.id, b->u.id);
-
- if (a->type == ASIdOrRange_range && b->type == ASIdOrRange_range) {
- int r = ASN1_INTEGER_cmp(a->u.range->min, b->u.range->min);
- return r != 0 ? r : ASN1_INTEGER_cmp(a->u.range->max, b->u.range->max);
- }
-
- if (a->type == ASIdOrRange_id)
- return ASN1_INTEGER_cmp(a->u.id, b->u.range->min);
- else
- return ASN1_INTEGER_cmp(a->u.range->min, b->u.id);
-}
-
-/*
- * Add an inherit element.
- */
-int v3_asid_add_inherit(ASIdentifiers *asid, int which)
-{
- ASIdentifierChoice **choice;
- if (asid == NULL)
- return 0;
- switch (which) {
- case V3_ASID_ASNUM:
- choice = &asid->asnum;
- break;
- case V3_ASID_RDI:
- choice = &asid->rdi;
- break;
- default:
- return 0;
- }
- if (*choice == NULL) {
- if ((*choice = ASIdentifierChoice_new()) == NULL)
- return 0;
- OPENSSL_assert((*choice)->u.inherit == NULL);
- if (((*choice)->u.inherit = ASN1_NULL_new()) == NULL)
- return 0;
- (*choice)->type = ASIdentifierChoice_inherit;
- }
- return (*choice)->type == ASIdentifierChoice_inherit;
-}
-
-/*
- * Add an ID or range to an ASIdentifierChoice.
- */
-int v3_asid_add_id_or_range(ASIdentifiers *asid,
- int which,
- ASN1_INTEGER *min,
- ASN1_INTEGER *max)
-{
- ASIdentifierChoice **choice;
- ASIdOrRange *aor;
- if (asid == NULL)
- return 0;
- switch (which) {
- case V3_ASID_ASNUM:
- choice = &asid->asnum;
- break;
- case V3_ASID_RDI:
- choice = &asid->rdi;
- break;
- default:
- return 0;
- }
- if (*choice != NULL && (*choice)->type == ASIdentifierChoice_inherit)
- return 0;
- if (*choice == NULL) {
- if ((*choice = ASIdentifierChoice_new()) == NULL)
- return 0;
- OPENSSL_assert((*choice)->u.asIdsOrRanges == NULL);
- (*choice)->u.asIdsOrRanges = sk_ASIdOrRange_new(ASIdOrRange_cmp);
- if ((*choice)->u.asIdsOrRanges == NULL)
- return 0;
- (*choice)->type = ASIdentifierChoice_asIdsOrRanges;
- }
- if ((aor = ASIdOrRange_new()) == NULL)
- return 0;
- if (max == NULL) {
- aor->type = ASIdOrRange_id;
- aor->u.id = min;
- } else {
- aor->type = ASIdOrRange_range;
- if ((aor->u.range = ASRange_new()) == NULL)
- goto err;
- ASN1_INTEGER_free(aor->u.range->min);
- aor->u.range->min = min;
- ASN1_INTEGER_free(aor->u.range->max);
- aor->u.range->max = max;
- }
- if (!(sk_ASIdOrRange_push((*choice)->u.asIdsOrRanges, aor)))
- goto err;
- return 1;
-
- err:
- ASIdOrRange_free(aor);
- return 0;
-}
-
-/*
- * Extract min and max values from an ASIdOrRange.
- */
-static void extract_min_max(ASIdOrRange *aor,
- ASN1_INTEGER **min,
- ASN1_INTEGER **max)
-{
- OPENSSL_assert(aor != NULL && min != NULL && max != NULL);
- switch (aor->type) {
- case ASIdOrRange_id:
- *min = aor->u.id;
- *max = aor->u.id;
- return;
- case ASIdOrRange_range:
- *min = aor->u.range->min;
- *max = aor->u.range->max;
- return;
- }
-}
-
-/*
- * Check whether an ASIdentifierChoice is in canonical form.
- */
-static int ASIdentifierChoice_is_canonical(ASIdentifierChoice *choice)
-{
- ASN1_INTEGER *a_max_plus_one = NULL;
- BIGNUM *bn = NULL;
- int i, ret = 0;
-
- /*
- * Empty element or inheritance is canonical.
- */
- if (choice == NULL || choice->type == ASIdentifierChoice_inherit)
- return 1;
-
- /*
- * If not a list, or if empty list, it's broken.
- */
- if (choice->type != ASIdentifierChoice_asIdsOrRanges ||
- sk_ASIdOrRange_num(choice->u.asIdsOrRanges) == 0)
- return 0;
-
- /*
- * It's a list, check it.
- */
- for (i = 0; i < sk_ASIdOrRange_num(choice->u.asIdsOrRanges) - 1; i++) {
- ASIdOrRange *a = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i);
- ASIdOrRange *b = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i + 1);
- ASN1_INTEGER *a_min, *a_max, *b_min, *b_max;
-
- extract_min_max(a, &a_min, &a_max);
- extract_min_max(b, &b_min, &b_max);
-
- /*
- * Punt misordered list, overlapping start, or inverted range.
- */
- if (ASN1_INTEGER_cmp(a_min, b_min) >= 0 ||
- ASN1_INTEGER_cmp(a_min, a_max) > 0 ||
- ASN1_INTEGER_cmp(b_min, b_max) > 0)
- goto done;
-
- /*
- * Calculate a_max + 1 to check for adjacency.
- */
- if ((bn == NULL && (bn = BN_new()) == NULL) ||
- ASN1_INTEGER_to_BN(a_max, bn) == NULL ||
- !BN_add_word(bn, 1) ||
- (a_max_plus_one = BN_to_ASN1_INTEGER(bn, a_max_plus_one)) == NULL) {
- X509V3err(X509V3_F_ASIDENTIFIERCHOICE_IS_CANONICAL,
- ERR_R_MALLOC_FAILURE);
- goto done;
- }
-
- /*
- * Punt if adjacent or overlapping.
- */
- if (ASN1_INTEGER_cmp(a_max_plus_one, b_min) >= 0)
- goto done;
- }
-
- /*
- * Check for inverted range.
- */
- i = sk_ASIdOrRange_num(choice->u.asIdsOrRanges) - 1;
- {
- ASIdOrRange *a = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i);
- ASN1_INTEGER *a_min, *a_max;
- if (a != NULL && a->type == ASIdOrRange_range) {
- extract_min_max(a, &a_min, &a_max);
- if (ASN1_INTEGER_cmp(a_min, a_max) > 0)
- goto done;
- }
- }
-
- ret = 1;
-
- done:
- ASN1_INTEGER_free(a_max_plus_one);
- BN_free(bn);
- return ret;
-}
-
-/*
- * Check whether an ASIdentifier extension is in canonical form.
- */
-int v3_asid_is_canonical(ASIdentifiers *asid)
-{
- return (asid == NULL ||
- (ASIdentifierChoice_is_canonical(asid->asnum) &&
- ASIdentifierChoice_is_canonical(asid->rdi)));
-}
-
-/*
- * Whack an ASIdentifierChoice into canonical form.
- */
-static int ASIdentifierChoice_canonize(ASIdentifierChoice *choice)
-{
- ASN1_INTEGER *a_max_plus_one = NULL;
- BIGNUM *bn = NULL;
- int i, ret = 0;
-
- /*
- * Nothing to do for empty element or inheritance.
- */
- if (choice == NULL || choice->type == ASIdentifierChoice_inherit)
- return 1;
-
- /*
- * If not a list, or if empty list, it's broken.
- */
- if (choice->type != ASIdentifierChoice_asIdsOrRanges ||
- sk_ASIdOrRange_num(choice->u.asIdsOrRanges) == 0) {
- X509V3err(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE,
- X509V3_R_EXTENSION_VALUE_ERROR);
- return 0;
- }
-
- /*
- * We have a non-empty list. Sort it.
- */
- sk_ASIdOrRange_sort(choice->u.asIdsOrRanges);
-
- /*
- * Now check for errors and suboptimal encoding, rejecting the
- * former and fixing the latter.
- */
- for (i = 0; i < sk_ASIdOrRange_num(choice->u.asIdsOrRanges) - 1; i++) {
- ASIdOrRange *a = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i);
- ASIdOrRange *b = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i + 1);
- ASN1_INTEGER *a_min, *a_max, *b_min, *b_max;
-
- extract_min_max(a, &a_min, &a_max);
- extract_min_max(b, &b_min, &b_max);
-
- /*
- * Make sure we're properly sorted (paranoia).
- */
- OPENSSL_assert(ASN1_INTEGER_cmp(a_min, b_min) <= 0);
-
- /*
- * Punt inverted ranges.
- */
- if (ASN1_INTEGER_cmp(a_min, a_max) > 0 ||
- ASN1_INTEGER_cmp(b_min, b_max) > 0)
- goto done;
-
- /*
- * Check for overlaps.
- */
- if (ASN1_INTEGER_cmp(a_max, b_min) >= 0) {
- X509V3err(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE,
- X509V3_R_EXTENSION_VALUE_ERROR);
- goto done;
- }
-
- /*
- * Calculate a_max + 1 to check for adjacency.
- */
- if ((bn == NULL && (bn = BN_new()) == NULL) ||
- ASN1_INTEGER_to_BN(a_max, bn) == NULL ||
- !BN_add_word(bn, 1) ||
- (a_max_plus_one = BN_to_ASN1_INTEGER(bn, a_max_plus_one)) == NULL) {
- X509V3err(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE, ERR_R_MALLOC_FAILURE);
- goto done;
- }
-
- /*
- * If a and b are adjacent, merge them.
- */
- if (ASN1_INTEGER_cmp(a_max_plus_one, b_min) == 0) {
- ASRange *r;
- switch (a->type) {
- case ASIdOrRange_id:
- if ((r = OPENSSL_malloc(sizeof(ASRange))) == NULL) {
- X509V3err(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE,
- ERR_R_MALLOC_FAILURE);
- goto done;
- }
- r->min = a_min;
- r->max = b_max;
- a->type = ASIdOrRange_range;
- a->u.range = r;
- break;
- case ASIdOrRange_range:
- ASN1_INTEGER_free(a->u.range->max);
- a->u.range->max = b_max;
- break;
- }
- switch (b->type) {
- case ASIdOrRange_id:
- b->u.id = NULL;
- break;
- case ASIdOrRange_range:
- b->u.range->max = NULL;
- break;
- }
- ASIdOrRange_free(b);
- (void) sk_ASIdOrRange_delete(choice->u.asIdsOrRanges, i + 1);
- i--;
- continue;
- }
- }
-
- /*
- * Check for final inverted range.
- */
- i = sk_ASIdOrRange_num(choice->u.asIdsOrRanges) - 1;
- {
- ASIdOrRange *a = sk_ASIdOrRange_value(choice->u.asIdsOrRanges, i);
- ASN1_INTEGER *a_min, *a_max;
- if (a != NULL && a->type == ASIdOrRange_range) {
- extract_min_max(a, &a_min, &a_max);
- if (ASN1_INTEGER_cmp(a_min, a_max) > 0)
- goto done;
- }
- }
-
- OPENSSL_assert(ASIdentifierChoice_is_canonical(choice)); /* Paranoia */
-
- ret = 1;
-
- done:
- ASN1_INTEGER_free(a_max_plus_one);
- BN_free(bn);
- return ret;
-}
-
-/*
- * Whack an ASIdentifier extension into canonical form.
- */
-int v3_asid_canonize(ASIdentifiers *asid)
-{
- return (asid == NULL ||
- (ASIdentifierChoice_canonize(asid->asnum) &&
- ASIdentifierChoice_canonize(asid->rdi)));
-}
-
-/*
- * v2i method for an ASIdentifier extension.
- */
-static void *v2i_ASIdentifiers(const struct v3_ext_method *method,
- struct v3_ext_ctx *ctx,
- STACK_OF(CONF_VALUE) *values)
-{
- ASN1_INTEGER *min = NULL, *max = NULL;
- ASIdentifiers *asid = NULL;
- int i;
-
- if ((asid = ASIdentifiers_new()) == NULL) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
- CONF_VALUE *val = sk_CONF_VALUE_value(values, i);
- int i1, i2, i3, is_range, which;
-
- /*
- * Figure out whether this is an AS or an RDI.
- */
- if ( !name_cmp(val->name, "AS")) {
- which = V3_ASID_ASNUM;
- } else if (!name_cmp(val->name, "RDI")) {
- which = V3_ASID_RDI;
- } else {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_EXTENSION_NAME_ERROR);
- X509V3_conf_err(val);
- goto err;
- }
-
- /*
- * Handle inheritance.
- */
- if (!strcmp(val->value, "inherit")) {
- if (v3_asid_add_inherit(asid, which))
- continue;
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_INVALID_INHERITANCE);
- X509V3_conf_err(val);
- goto err;
- }
-
- /*
- * Number, range, or mistake, pick it apart and figure out which.
- */
- i1 = strspn(val->value, "0123456789");
- if (val->value[i1] == '\0') {
- is_range = 0;
- } else {
- is_range = 1;
- i2 = i1 + strspn(val->value + i1, " \t");
- if (val->value[i2] != '-') {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_INVALID_ASNUMBER);
- X509V3_conf_err(val);
- goto err;
- }
- i2++;
- i2 = i2 + strspn(val->value + i2, " \t");
- i3 = i2 + strspn(val->value + i2, "0123456789");
- if (val->value[i3] != '\0') {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_INVALID_ASRANGE);
- X509V3_conf_err(val);
- goto err;
- }
- }
-
- /*
- * Syntax is ok, read and add it.
- */
- if (!is_range) {
- if (!X509V3_get_value_int(val, &min)) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- } else {
- char *s = BUF_strdup(val->value);
- if (s == NULL) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- s[i1] = '\0';
- min = s2i_ASN1_INTEGER(NULL, s);
- max = s2i_ASN1_INTEGER(NULL, s + i2);
- OPENSSL_free(s);
- if (min == NULL || max == NULL) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (ASN1_INTEGER_cmp(min, max) > 0) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, X509V3_R_EXTENSION_VALUE_ERROR);
- goto err;
- }
- }
- if (!v3_asid_add_id_or_range(asid, which, min, max)) {
- X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- min = max = NULL;
- }
-
- /*
- * Canonize the result, then we're done.
- */
- if (!v3_asid_canonize(asid))
- goto err;
- return asid;
-
- err:
- ASIdentifiers_free(asid);
- ASN1_INTEGER_free(min);
- ASN1_INTEGER_free(max);
- return NULL;
-}
-
-/*
- * OpenSSL dispatch.
- */
-const X509V3_EXT_METHOD v3_asid = {
- NID_sbgp_autonomousSysNum, /* nid */
- 0, /* flags */
- ASN1_ITEM_ref(ASIdentifiers), /* template */
- 0, 0, 0, 0, /* old functions, ignored */
- 0, /* i2s */
- 0, /* s2i */
- 0, /* i2v */
- v2i_ASIdentifiers, /* v2i */
- i2r_ASIdentifiers, /* i2r */
- 0, /* r2i */
- NULL /* extension-specific data */
-};
-
-/*
- * Figure out whether extension uses inheritance.
- */
-int v3_asid_inherits(ASIdentifiers *asid)
-{
- return (asid != NULL &&
- ((asid->asnum != NULL &&
- asid->asnum->type == ASIdentifierChoice_inherit) ||
- (asid->rdi != NULL &&
- asid->rdi->type == ASIdentifierChoice_inherit)));
-}
-
-/*
- * Figure out whether parent contains child.
- */
-static int asid_contains(ASIdOrRanges *parent, ASIdOrRanges *child)
-{
- ASN1_INTEGER *p_min, *p_max, *c_min, *c_max;
- int p, c;
-
- if (child == NULL || parent == child)
- return 1;
- if (parent == NULL)
- return 0;
-
- p = 0;
- for (c = 0; c < sk_ASIdOrRange_num(child); c++) {
- extract_min_max(sk_ASIdOrRange_value(child, c), &c_min, &c_max);
- for (;; p++) {
- if (p >= sk_ASIdOrRange_num(parent))
- return 0;
- extract_min_max(sk_ASIdOrRange_value(parent, p), &p_min, &p_max);
- if (ASN1_INTEGER_cmp(p_max, c_max) < 0)
- continue;
- if (ASN1_INTEGER_cmp(p_min, c_min) > 0)
- return 0;
- break;
- }
- }
-
- return 1;
-}
-
-/*
- * Test whether a is a subet of b.
- */
-int v3_asid_subset(ASIdentifiers *a, ASIdentifiers *b)
-{
- return (a == NULL ||
- a == b ||
- (b != NULL &&
- !v3_asid_inherits(a) &&
- !v3_asid_inherits(b) &&
- asid_contains(b->asnum->u.asIdsOrRanges,
- a->asnum->u.asIdsOrRanges) &&
- asid_contains(b->rdi->u.asIdsOrRanges,
- a->rdi->u.asIdsOrRanges)));
-}
-
-/*
- * Validation error handling via callback.
- */
-#define validation_err(_err_) \
- do { \
- if (ctx != NULL) { \
- ctx->error = _err_; \
- ctx->error_depth = i; \
- ctx->current_cert = x; \
- ret = ctx->verify_cb(0, ctx); \
- } else { \
- ret = 0; \
- } \
- if (!ret) \
- goto done; \
- } while (0)
-
-/*
- * Core code for RFC 3779 3.3 path validation.
- */
-static int v3_asid_validate_path_internal(X509_STORE_CTX *ctx,
- STACK_OF(X509) *chain,
- ASIdentifiers *ext)
-{
- ASIdOrRanges *child_as = NULL, *child_rdi = NULL;
- int i, ret = 1, inherit_as = 0, inherit_rdi = 0;
- X509 *x;
-
- OPENSSL_assert(chain != NULL && sk_X509_num(chain) > 0);
- OPENSSL_assert(ctx != NULL || ext != NULL);
- OPENSSL_assert(ctx == NULL || ctx->verify_cb != NULL);
-
- /*
- * Figure out where to start. If we don't have an extension to
- * check, we're done. Otherwise, check canonical form and
- * set up for walking up the chain.
- */
- if (ext != NULL) {
- i = -1;
- x = NULL;
- } else {
- i = 0;
- x = sk_X509_value(chain, i);
- OPENSSL_assert(x != NULL);
- if ((ext = x->rfc3779_asid) == NULL)
- goto done;
- }
- if (!v3_asid_is_canonical(ext))
- validation_err(X509_V_ERR_INVALID_EXTENSION);
- if (ext->asnum != NULL) {
- switch (ext->asnum->type) {
- case ASIdentifierChoice_inherit:
- inherit_as = 1;
- break;
- case ASIdentifierChoice_asIdsOrRanges:
- child_as = ext->asnum->u.asIdsOrRanges;
- break;
- }
- }
- if (ext->rdi != NULL) {
- switch (ext->rdi->type) {
- case ASIdentifierChoice_inherit:
- inherit_rdi = 1;
- break;
- case ASIdentifierChoice_asIdsOrRanges:
- child_rdi = ext->rdi->u.asIdsOrRanges;
- break;
- }
- }
-
- /*
- * Now walk up the chain. Extensions must be in canonical form, no
- * cert may list resources that its parent doesn't list.
- */
- for (i++; i < sk_X509_num(chain); i++) {
- x = sk_X509_value(chain, i);
- OPENSSL_assert(x != NULL);
- if (x->rfc3779_asid == NULL) {
- if (child_as != NULL || child_rdi != NULL)
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- continue;
- }
- if (!v3_asid_is_canonical(x->rfc3779_asid))
- validation_err(X509_V_ERR_INVALID_EXTENSION);
- if (x->rfc3779_asid->asnum == NULL && child_as != NULL) {
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- child_as = NULL;
- inherit_as = 0;
- }
- if (x->rfc3779_asid->asnum != NULL &&
- x->rfc3779_asid->asnum->type == ASIdentifierChoice_asIdsOrRanges) {
- if (inherit_as ||
- asid_contains(x->rfc3779_asid->asnum->u.asIdsOrRanges, child_as)) {
- child_as = x->rfc3779_asid->asnum->u.asIdsOrRanges;
- inherit_as = 0;
- } else {
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- }
- }
- if (x->rfc3779_asid->rdi == NULL && child_rdi != NULL) {
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- child_rdi = NULL;
- inherit_rdi = 0;
- }
- if (x->rfc3779_asid->rdi != NULL &&
- x->rfc3779_asid->rdi->type == ASIdentifierChoice_asIdsOrRanges) {
- if (inherit_rdi ||
- asid_contains(x->rfc3779_asid->rdi->u.asIdsOrRanges, child_rdi)) {
- child_rdi = x->rfc3779_asid->rdi->u.asIdsOrRanges;
- inherit_rdi = 0;
- } else {
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- }
- }
- }
-
- /*
- * Trust anchor can't inherit.
- */
- OPENSSL_assert(x != NULL);
- if (x->rfc3779_asid != NULL) {
- if (x->rfc3779_asid->asnum != NULL &&
- x->rfc3779_asid->asnum->type == ASIdentifierChoice_inherit)
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- if (x->rfc3779_asid->rdi != NULL &&
- x->rfc3779_asid->rdi->type == ASIdentifierChoice_inherit)
- validation_err(X509_V_ERR_UNNESTED_RESOURCE);
- }
-
- done:
- return ret;
-}
-
-#undef validation_err
-
-/*
- * RFC 3779 3.3 path validation -- called from X509_verify_cert().
- */
-int v3_asid_validate_path(X509_STORE_CTX *ctx)
-{
- return v3_asid_validate_path_internal(ctx, ctx->chain, NULL);
-}
-
-/*
- * RFC 3779 3.3 path validation of an extension.
- * Test whether chain covers extension.
- */
-int v3_asid_validate_resource_set(STACK_OF(X509) *chain,
- ASIdentifiers *ext,
- int allow_inheritance)
-{
- if (ext == NULL)
- return 1;
- if (chain == NULL || sk_X509_num(chain) == 0)
- return 0;
- if (!allow_inheritance && v3_asid_inherits(ext))
- return 0;
- return v3_asid_validate_path_internal(NULL, chain, ext);
-}
-
-#endif /* OPENSSL_NO_RFC3779 */
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