Add RFC 3779 support.
diff --git a/CHANGES b/CHANGES
index c73798f..682a4f0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -423,6 +423,9 @@
Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
+ *) Add RFC 3779 support.
+ [Rob Austein for ARIN, Ben Laurie]
+
Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
*) Introduce limits to prevent malicious keys being able to
diff --git a/Configure b/Configure
index 2eba60d..6eb7f96 100755
--- a/Configure
+++ b/Configure
@@ -579,6 +579,7 @@
my $no_shared=0; # but "no-shared" is default
my $zlib=1; # but "no-zlib" is default
my $no_krb5=0; # but "no-krb5" is implied unless "--with-krb5-..." is used
+my $rfc3779=1; # but "no-rfc3779" is default
my $no_asm=0;
my $no_dso=0;
my $no_gmp=0;
@@ -614,6 +615,7 @@
"gmp" => "default",
"mdc2" => "default",
"rc5" => "default",
+ "rfc3779" => "default",
"shared" => "default",
"zlib" => "default",
"zlib-dynamic" => "default"
@@ -901,6 +903,8 @@
{ $symlink = 0; }
elsif (/^sse2$/)
{ $no_sse2 = 1; }
+ elsif (/^rfc3779$/)
+ { $rfc3779 = 0; }
else
{
my ($ALGO, $algo);
@@ -1137,6 +1141,11 @@
}
}
+if ($rfc3779)
+ {
+ $openssl_other_defines.="#define OPENSSL_RFC3779\n";
+ }
+
# You will find shlib_mark1 and shlib_mark2 explained in Makefile.org
my $shared_mark = "";
if ($shared_target eq "")
diff --git a/apps/ca.c b/apps/ca.c
index d0fa3d7..7666e35 100644
--- a/apps/ca.c
+++ b/apps/ca.c
@@ -1525,6 +1525,7 @@
if (x509) X509_free(x509);
X509_CRL_free(crl);
NCONF_free(conf);
+ NCONF_free(extconf);
OBJ_cleanup();
apps_shutdown();
OPENSSL_EXIT(ret);
diff --git a/crypto/asn1/x_x509.c b/crypto/asn1/x_x509.c
index 73f61e1..b6110d2 100644
--- a/crypto/asn1/x_x509.c
+++ b/crypto/asn1/x_x509.c
@@ -95,6 +95,10 @@
ret->ex_pathlen = -1;
ret->skid = NULL;
ret->akid = NULL;
+#ifdef OPENSSL_RFC3779
+ ret->rfc3779_addr = NULL;
+ ret->rfc3779_asid = NULL;
+#endif
ret->aux = NULL;
ret->crldp = NULL;
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
@@ -112,6 +116,10 @@
AUTHORITY_KEYID_free(ret->akid);
CRL_DIST_POINTS_free(ret->crldp);
policy_cache_free(ret->policy_cache);
+#ifdef OPENSSL_RFC3779
+ sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free);
+ ASIdentifiers_free(ret->rfc3779_asid);
+#endif
if (ret->name != NULL) OPENSSL_free(ret->name);
break;
diff --git a/crypto/stack/safestack.h b/crypto/stack/safestack.h
index 2d3a2e9..575745e 100644
--- a/crypto/stack/safestack.h
+++ b/crypto/stack/safestack.h
@@ -297,6 +297,30 @@
#define sk_ACCESS_DESCRIPTION_sort(st) SKM_sk_sort(ACCESS_DESCRIPTION, (st))
#define sk_ACCESS_DESCRIPTION_is_sorted(st) SKM_sk_is_sorted(ACCESS_DESCRIPTION, (st))
+#ifdef OPENSSL_RFC3779
+#define sk_ASIdOrRange_new(st) SKM_sk_new(ASIdOrRange, (st))
+#define sk_ASIdOrRange_new_null() SKM_sk_new_null(ASIdOrRange)
+#define sk_ASIdOrRange_free(st) SKM_sk_free(ASIdOrRange, (st))
+#define sk_ASIdOrRange_num(st) SKM_sk_num(ASIdOrRange, (st))
+#define sk_ASIdOrRange_value(st, i) SKM_sk_value(ASIdOrRange, (st), (i))
+#define sk_ASIdOrRange_set(st, i, val) SKM_sk_set(ASIdOrRange, (st), (i), (val))
+#define sk_ASIdOrRange_zero(st) SKM_sk_zero(ASIdOrRange, (st))
+#define sk_ASIdOrRange_push(st, val) SKM_sk_push(ASIdOrRange, (st), (val))
+#define sk_ASIdOrRange_unshift(st, val) SKM_sk_unshift(ASIdOrRange, (st), (val))
+#define sk_ASIdOrRange_find(st, val) SKM_sk_find(ASIdOrRange, (st), (val))
+#define sk_ASIdOrRange_find_ex(st, val) SKM_sk_find_ex(ASIdOrRange, (st), (val))
+#define sk_ASIdOrRange_delete(st, i) SKM_sk_delete(ASIdOrRange, (st), (i))
+#define sk_ASIdOrRange_delete_ptr(st, ptr) SKM_sk_delete_ptr(ASIdOrRange, (st), (ptr))
+#define sk_ASIdOrRange_insert(st, val, i) SKM_sk_insert(ASIdOrRange, (st), (val), (i))
+#define sk_ASIdOrRange_set_cmp_func(st, cmp) SKM_sk_set_cmp_func(ASIdOrRange, (st), (cmp))
+#define sk_ASIdOrRange_dup(st) SKM_sk_dup(ASIdOrRange, st)
+#define sk_ASIdOrRange_pop_free(st, free_func) SKM_sk_pop_free(ASIdOrRange, (st), (free_func))
+#define sk_ASIdOrRange_shift(st) SKM_sk_shift(ASIdOrRange, (st))
+#define sk_ASIdOrRange_pop(st) SKM_sk_pop(ASIdOrRange, (st))
+#define sk_ASIdOrRange_sort(st) SKM_sk_sort(ASIdOrRange, (st))
+#define sk_ASIdOrRange_is_sorted(st) SKM_sk_is_sorted(ASIdOrRange, (st))
+#endif /* def OPENSSL_RFC3779 */
+
#define sk_ASN1_GENERALSTRING_new(st) SKM_sk_new(ASN1_GENERALSTRING, (st))
#define sk_ASN1_GENERALSTRING_new_null() SKM_sk_new_null(ASN1_GENERALSTRING)
#define sk_ASN1_GENERALSTRING_free(st) SKM_sk_free(ASN1_GENERALSTRING, (st))
@@ -781,6 +805,52 @@
#define sk_GENERAL_SUBTREE_sort(st) SKM_sk_sort(GENERAL_SUBTREE, (st))
#define sk_GENERAL_SUBTREE_is_sorted(st) SKM_sk_is_sorted(GENERAL_SUBTREE, (st))
+#ifdef OPENSSL_RFC3779
+#define sk_IPAddressFamily_new(st) SKM_sk_new(IPAddressFamily, (st))
+#define sk_IPAddressFamily_new_null() SKM_sk_new_null(IPAddressFamily)
+#define sk_IPAddressFamily_free(st) SKM_sk_free(IPAddressFamily, (st))
+#define sk_IPAddressFamily_num(st) SKM_sk_num(IPAddressFamily, (st))
+#define sk_IPAddressFamily_value(st, i) SKM_sk_value(IPAddressFamily, (st), (i))
+#define sk_IPAddressFamily_set(st, i, val) SKM_sk_set(IPAddressFamily, (st), (i), (val))
+#define sk_IPAddressFamily_zero(st) SKM_sk_zero(IPAddressFamily, (st))
+#define sk_IPAddressFamily_push(st, val) SKM_sk_push(IPAddressFamily, (st), (val))
+#define sk_IPAddressFamily_unshift(st, val) SKM_sk_unshift(IPAddressFamily, (st), (val))
+#define sk_IPAddressFamily_find(st, val) SKM_sk_find(IPAddressFamily, (st), (val))
+#define sk_IPAddressFamily_find_ex(st, val) SKM_sk_find_ex(IPAddressFamily, (st), (val))
+#define sk_IPAddressFamily_delete(st, i) SKM_sk_delete(IPAddressFamily, (st), (i))
+#define sk_IPAddressFamily_delete_ptr(st, ptr) SKM_sk_delete_ptr(IPAddressFamily, (st), (ptr))
+#define sk_IPAddressFamily_insert(st, val, i) SKM_sk_insert(IPAddressFamily, (st), (val), (i))
+#define sk_IPAddressFamily_set_cmp_func(st, cmp) SKM_sk_set_cmp_func(IPAddressFamily, (st), (cmp))
+#define sk_IPAddressFamily_dup(st) SKM_sk_dup(IPAddressFamily, st)
+#define sk_IPAddressFamily_pop_free(st, free_func) SKM_sk_pop_free(IPAddressFamily, (st), (free_func))
+#define sk_IPAddressFamily_shift(st) SKM_sk_shift(IPAddressFamily, (st))
+#define sk_IPAddressFamily_pop(st) SKM_sk_pop(IPAddressFamily, (st))
+#define sk_IPAddressFamily_sort(st) SKM_sk_sort(IPAddressFamily, (st))
+#define sk_IPAddressFamily_is_sorted(st) SKM_sk_is_sorted(IPAddressFamily, (st))
+
+#define sk_IPAddressOrRange_new(st) SKM_sk_new(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_new_null() SKM_sk_new_null(IPAddressOrRange)
+#define sk_IPAddressOrRange_free(st) SKM_sk_free(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_num(st) SKM_sk_num(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_value(st, i) SKM_sk_value(IPAddressOrRange, (st), (i))
+#define sk_IPAddressOrRange_set(st, i, val) SKM_sk_set(IPAddressOrRange, (st), (i), (val))
+#define sk_IPAddressOrRange_zero(st) SKM_sk_zero(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_push(st, val) SKM_sk_push(IPAddressOrRange, (st), (val))
+#define sk_IPAddressOrRange_unshift(st, val) SKM_sk_unshift(IPAddressOrRange, (st), (val))
+#define sk_IPAddressOrRange_find(st, val) SKM_sk_find(IPAddressOrRange, (st), (val))
+#define sk_IPAddressOrRange_find_ex(st, val) SKM_sk_find_ex(IPAddressOrRange, (st), (val))
+#define sk_IPAddressOrRange_delete(st, i) SKM_sk_delete(IPAddressOrRange, (st), (i))
+#define sk_IPAddressOrRange_delete_ptr(st, ptr) SKM_sk_delete_ptr(IPAddressOrRange, (st), (ptr))
+#define sk_IPAddressOrRange_insert(st, val, i) SKM_sk_insert(IPAddressOrRange, (st), (val), (i))
+#define sk_IPAddressOrRange_set_cmp_func(st, cmp) SKM_sk_set_cmp_func(IPAddressOrRange, (st), (cmp))
+#define sk_IPAddressOrRange_dup(st) SKM_sk_dup(IPAddressOrRange, st)
+#define sk_IPAddressOrRange_pop_free(st, free_func) SKM_sk_pop_free(IPAddressOrRange, (st), (free_func))
+#define sk_IPAddressOrRange_shift(st) SKM_sk_shift(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_pop(st) SKM_sk_pop(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_sort(st) SKM_sk_sort(IPAddressOrRange, (st))
+#define sk_IPAddressOrRange_is_sorted(st) SKM_sk_is_sorted(IPAddressOrRange, (st))
+#endif /* def OPENSSL_RFC3779 */
+
#define sk_KRB5_APREQBODY_new(st) SKM_sk_new(KRB5_APREQBODY, (st))
#define sk_KRB5_APREQBODY_new_null() SKM_sk_new_null(KRB5_APREQBODY)
#define sk_KRB5_APREQBODY_free(st) SKM_sk_free(KRB5_APREQBODY, (st))
diff --git a/crypto/x509/x509.h b/crypto/x509/x509.h
index 40d9401..b70a008 100644
--- a/crypto/x509/x509.h
+++ b/crypto/x509/x509.h
@@ -291,6 +291,10 @@
AUTHORITY_KEYID *akid;
X509_POLICY_CACHE *policy_cache;
STACK_OF(DIST_POINT) *crldp;
+#ifdef OPENSSL_RFC3779
+ STACK_OF(IPAddressFamily) *rfc3779_addr;
+ struct ASIdentifiers_st *rfc3779_asid;
+#endif
#ifndef OPENSSL_NO_SHA
unsigned char sha1_hash[SHA_DIGEST_LENGTH];
#endif
diff --git a/crypto/x509/x509_txt.c b/crypto/x509/x509_txt.c
index 92f47a0..20b937d 100644
--- a/crypto/x509/x509_txt.c
+++ b/crypto/x509/x509_txt.c
@@ -166,6 +166,8 @@
return("Different CRL scope");
case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
return("Unsupported extension feature");
+ case X509_V_ERR_UNNESTED_RESOURCE:
+ return("RFC 3779 resource not subset of parent's resources");
default:
BIO_snprintf(buf,sizeof buf,"error number %ld",n);
return(buf);
diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c
index d1aa3da..d58f900 100644
--- a/crypto/x509/x509_vfy.c
+++ b/crypto/x509/x509_vfy.c
@@ -314,6 +314,14 @@
ok=internal_verify(ctx);
if(!ok) goto end;
+#ifdef OPENSSL_RFC3779
+ /* RFC 3779 path validation, now that CRL check has been done */
+ ok = v3_asid_validate_path(ctx);
+ if (!ok) goto end;
+ ok = v3_addr_validate_path(ctx);
+ if (!ok) goto end;
+#endif
+
/* If we get this far evaluate policies */
if (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))
ok = ctx->check_policy(ctx);
diff --git a/crypto/x509/x509_vfy.h b/crypto/x509/x509_vfy.h
index bfca7c7..955af83 100644
--- a/crypto/x509/x509_vfy.h
+++ b/crypto/x509/x509_vfy.h
@@ -339,6 +339,7 @@
#define X509_V_ERR_DIFFERENT_CRL_SCOPE 44
#define X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE 45
+#define X509_V_ERR_UNNESTED_RESOURCE 46
/* The application is not happy */
#define X509_V_ERR_APPLICATION_VERIFICATION 50
diff --git a/crypto/x509v3/Makefile b/crypto/x509v3/Makefile
index 7a5266e..556ef35 100644
--- a/crypto/x509v3/Makefile
+++ b/crypto/x509v3/Makefile
@@ -21,12 +21,14 @@
v3_prn.c v3_utl.c v3err.c v3_genn.c v3_alt.c v3_skey.c v3_akey.c v3_pku.c \
v3_int.c v3_enum.c v3_sxnet.c v3_cpols.c v3_crld.c v3_purp.c v3_info.c \
v3_ocsp.c v3_akeya.c v3_pmaps.c v3_pcons.c v3_ncons.c v3_pcia.c v3_pci.c \
-pcy_cache.c pcy_node.c pcy_data.c pcy_map.c pcy_tree.c pcy_lib.c
+pcy_cache.c pcy_node.c pcy_data.c pcy_map.c pcy_tree.c pcy_lib.c \
+v3_asid.c v3_addr.c
LIBOBJ= v3_bcons.o v3_bitst.o v3_conf.o v3_extku.o v3_ia5.o v3_lib.o \
v3_prn.o v3_utl.o v3err.o v3_genn.o v3_alt.o v3_skey.o v3_akey.o v3_pku.o \
v3_int.o v3_enum.o v3_sxnet.o v3_cpols.o v3_crld.o v3_purp.o v3_info.o \
v3_ocsp.o v3_akeya.o v3_pmaps.o v3_pcons.o v3_ncons.o v3_pcia.o v3_pci.o \
-pcy_cache.o pcy_node.o pcy_data.o pcy_map.o pcy_tree.o pcy_lib.o
+pcy_cache.o pcy_node.o pcy_data.o pcy_map.o pcy_tree.o pcy_lib.o \
+v3_asid.o v3_addr.o
SRC= $(LIBSRC)
@@ -166,6 +168,20 @@
pcy_tree.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
pcy_tree.o: ../../include/openssl/x509_vfy.h ../../include/openssl/x509v3.h
pcy_tree.o: ../cryptlib.h pcy_int.h pcy_tree.c
+v3_addr.o: ../../e_os.h ../../include/openssl/asn1.h
+v3_addr.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
+v3_addr.o: ../../include/openssl/buffer.h ../../include/openssl/conf.h
+v3_addr.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
+v3_addr.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
+v3_addr.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
+v3_addr.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
+v3_addr.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
+v3_addr.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
+v3_addr.o: ../../include/openssl/ossl_typ.h ../../include/openssl/pkcs7.h
+v3_addr.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
+v3_addr.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
+v3_addr.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
+v3_addr.o: ../../include/openssl/x509v3.h ../cryptlib.h v3_addr.c
v3_akey.o: ../../e_os.h ../../include/openssl/asn1.h
v3_akey.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
v3_akey.o: ../../include/openssl/buffer.h ../../include/openssl/conf.h
@@ -208,6 +224,21 @@
v3_alt.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
v3_alt.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
v3_alt.o: ../../include/openssl/x509v3.h ../cryptlib.h v3_alt.c
+v3_asid.o: ../../e_os.h ../../include/openssl/asn1.h
+v3_asid.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
+v3_asid.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
+v3_asid.o: ../../include/openssl/conf.h ../../include/openssl/crypto.h
+v3_asid.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
+v3_asid.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
+v3_asid.o: ../../include/openssl/err.h ../../include/openssl/evp.h
+v3_asid.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
+v3_asid.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
+v3_asid.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
+v3_asid.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
+v3_asid.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
+v3_asid.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
+v3_asid.o: ../../include/openssl/x509_vfy.h ../../include/openssl/x509v3.h
+v3_asid.o: ../cryptlib.h v3_asid.c
v3_bcons.o: ../../e_os.h ../../include/openssl/asn1.h
v3_bcons.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
v3_bcons.o: ../../include/openssl/buffer.h ../../include/openssl/conf.h
diff --git a/crypto/x509v3/ext_dat.h b/crypto/x509v3/ext_dat.h
index e23ee9b..d1e3c99 100644
--- a/crypto/x509v3/ext_dat.h
+++ b/crypto/x509v3/ext_dat.h
@@ -67,6 +67,7 @@
extern X509V3_EXT_METHOD v3_crl_hold, v3_pci;
extern X509V3_EXT_METHOD v3_policy_mappings, v3_policy_constraints;
extern X509V3_EXT_METHOD v3_name_constraints, v3_inhibit_anyp, v3_idp;
+extern X509V3_EXT_METHOD v3_addr, v3_asid;
/* This table will be searched using OBJ_bsearch so it *must* kept in
* order of the ext_nid values.
@@ -99,6 +100,10 @@
#endif
&v3_sxnet,
&v3_info,
+#ifdef OPENSSL_RFC3779
+&v3_addr,
+&v3_asid,
+#endif
#ifndef OPENSSL_NO_OCSP
&v3_ocsp_nonce,
&v3_ocsp_crlid,
diff --git a/crypto/x509v3/pcy_tree.c b/crypto/x509v3/pcy_tree.c
index 846a903..27d29f2 100644
--- a/crypto/x509v3/pcy_tree.c
+++ b/crypto/x509v3/pcy_tree.c
@@ -628,6 +628,16 @@
/* Tree OK: continue */
case 1:
+ if (!tree)
+ /*
+ * tree_init() returns success and a null tree
+ * if it's just looking at a trust anchor.
+ * I'm not sure that returning success here is
+ * correct, but I'm sure that reporting this
+ * as an internal error which our caller
+ * interprets as a malloc failure is wrong.
+ */
+ return 1;
break;
}
diff --git a/crypto/x509v3/v3_addr.c b/crypto/x509v3/v3_addr.c
new file mode 100644
index 0000000..8ba2254
--- /dev/null
+++ b/crypto/x509v3/v3_addr.c
@@ -0,0 +1,1280 @@
+/*
+ * 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 2.2.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "cryptlib.h"
+#include <openssl/conf.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/x509v3.h>
+
+#ifdef OPENSSL_RFC3779
+
+/*
+ * OpenSSL ASN.1 template translation of RFC 3779 2.2.3.
+ */
+
+ASN1_SEQUENCE(IPAddressRange) = {
+ ASN1_SIMPLE(IPAddressRange, min, ASN1_BIT_STRING),
+ ASN1_SIMPLE(IPAddressRange, max, ASN1_BIT_STRING)
+} ASN1_SEQUENCE_END(IPAddressRange)
+
+ASN1_CHOICE(IPAddressOrRange) = {
+ ASN1_SIMPLE(IPAddressOrRange, u.addressPrefix, ASN1_BIT_STRING),
+ ASN1_SIMPLE(IPAddressOrRange, u.addressRange, IPAddressRange)
+} ASN1_CHOICE_END(IPAddressOrRange)
+
+ASN1_CHOICE(IPAddressChoice) = {
+ ASN1_SIMPLE(IPAddressChoice, u.inherit, ASN1_NULL),
+ ASN1_SEQUENCE_OF(IPAddressChoice, u.addressesOrRanges, IPAddressOrRange)
+} ASN1_CHOICE_END(IPAddressChoice)
+
+ASN1_SEQUENCE(IPAddressFamily) = {
+ ASN1_SIMPLE(IPAddressFamily, addressFamily, ASN1_OCTET_STRING),
+ ASN1_SIMPLE(IPAddressFamily, ipAddressChoice, IPAddressChoice)
+} ASN1_SEQUENCE_END(IPAddressFamily)
+
+ASN1_ITEM_TEMPLATE(IPAddrBlocks) =
+ ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0,
+ IPAddrBlocks, IPAddressFamily)
+ASN1_ITEM_TEMPLATE_END(IPAddrBlocks)
+
+IMPLEMENT_ASN1_FUNCTIONS(IPAddressRange)
+IMPLEMENT_ASN1_FUNCTIONS(IPAddressOrRange)
+IMPLEMENT_ASN1_FUNCTIONS(IPAddressChoice)
+IMPLEMENT_ASN1_FUNCTIONS(IPAddressFamily)
+
+/*
+ * How much buffer space do we need for a raw address?
+ */
+#define ADDR_RAW_BUF_LEN 16
+
+/*
+ * What's the address length associated with this AFI?
+ */
+static int length_from_afi(const unsigned afi)
+{
+ switch (afi) {
+ case IANA_AFI_IPV4:
+ return 4;
+ case IANA_AFI_IPV6:
+ return 16;
+ default:
+ return 0;
+ }
+}
+
+/*
+ * Extract the AFI from an IPAddressFamily.
+ */
+unsigned v3_addr_get_afi(const IPAddressFamily *f)
+{
+ return ((f != NULL &&
+ f->addressFamily != NULL &&
+ f->addressFamily->data != NULL)
+ ? ((f->addressFamily->data[0] << 8) |
+ (f->addressFamily->data[1]))
+ : 0);
+}
+
+/*
+ * Expand the bitstring form of an address into a raw byte array.
+ * At the moment this is coded for simplicity, not speed.
+ */
+static void addr_expand(unsigned char *addr,
+ const ASN1_BIT_STRING *bs,
+ const int length,
+ const unsigned char fill)
+{
+ assert(bs->length >= 0 && bs->length <= length);
+ if (bs->length > 0) {
+ memcpy(addr, bs->data, bs->length);
+ if ((bs->flags & 7) != 0) {
+ unsigned char mask = 0xFF >> (8 - (bs->flags & 7));
+ if (fill == 0)
+ addr[bs->length - 1] &= ~mask;
+ else
+ addr[bs->length - 1] |= mask;
+ }
+ }
+ memset(addr + bs->length, fill, length - bs->length);
+}
+
+/*
+ * Extract the prefix length from a bitstring.
+ */
+#define addr_prefixlen(bs) ((int) ((bs)->length * 8 - ((bs)->flags & 7)))
+
+/*
+ * i2r handler for one address bitstring.
+ */
+static int i2r_address(BIO *out,
+ const unsigned afi,
+ const unsigned char fill,
+ const ASN1_BIT_STRING *bs)
+{
+ unsigned char addr[ADDR_RAW_BUF_LEN];
+ int i, n;
+
+ switch (afi) {
+ case IANA_AFI_IPV4:
+ addr_expand(addr, bs, 4, fill);
+ BIO_printf(out, "%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
+ break;
+ case IANA_AFI_IPV6:
+ addr_expand(addr, bs, 16, fill);
+ for (n = 16; n > 1 && addr[n-1] == 0x00 && addr[n-2] == 0x00; n -= 2)
+ ;
+ for (i = 0; i < n; i += 2)
+ BIO_printf(out, "%x%s", (addr[i] << 8) | addr[i+1], (i < 14 ? ":" : ""));
+ if (i < 16)
+ BIO_puts(out, ":");
+ break;
+ default:
+ for (i = 0; i < bs->length; i++)
+ BIO_printf(out, "%s%02x", (i > 0 ? ":" : ""), bs->data[i]);
+ BIO_printf(out, "[%d]", (int) (bs->flags & 7));
+ break;
+ }
+ return 1;
+}
+
+/*
+ * i2r handler for a sequence of addresses and ranges.
+ */
+static int i2r_IPAddressOrRanges(BIO *out,
+ const int indent,
+ const IPAddressOrRanges *aors,
+ const unsigned afi)
+{
+ int i;
+ for (i = 0; i < sk_IPAddressOrRange_num(aors); i++) {
+ const IPAddressOrRange *aor = sk_IPAddressOrRange_value(aors, i);
+ BIO_printf(out, "%*s", indent, "");
+ switch (aor->type) {
+ case IPAddressOrRange_addressPrefix:
+ if (!i2r_address(out, afi, 0x00, aor->u.addressPrefix))
+ return 0;
+ BIO_printf(out, "/%d\n", addr_prefixlen(aor->u.addressPrefix));
+ continue;
+ case IPAddressOrRange_addressRange:
+ if (!i2r_address(out, afi, 0x00, aor->u.addressRange->min))
+ return 0;
+ BIO_puts(out, "-");
+ if (!i2r_address(out, afi, 0xFF, aor->u.addressRange->max))
+ return 0;
+ BIO_puts(out, "\n");
+ continue;
+ }
+ }
+ return 1;
+}
+
+/*
+ * i2r handler for an IPAddrBlocks extension.
+ */
+static int i2r_IPAddrBlocks(X509V3_EXT_METHOD *method,
+ void *ext,
+ BIO *out,
+ int indent)
+{
+ const IPAddrBlocks *addr = ext;
+ int i;
+ for (i = 0; i < sk_IPAddressFamily_num(addr); i++) {
+ IPAddressFamily *f = sk_IPAddressFamily_value(addr, i);
+ const unsigned afi = v3_addr_get_afi(f);
+ switch (afi) {
+ case IANA_AFI_IPV4:
+ BIO_printf(out, "%*sIPv4", indent, "");
+ break;
+ case IANA_AFI_IPV6:
+ BIO_printf(out, "%*sIPv6", indent, "");
+ break;
+ default:
+ BIO_printf(out, "%*sUnknown AFI %u", indent, "", afi);
+ break;
+ }
+ if (f->addressFamily->length > 2) {
+ switch (f->addressFamily->data[2]) {
+ case 1:
+ BIO_puts(out, " (Unicast)");
+ break;
+ case 2:
+ BIO_puts(out, " (Multicast)");
+ break;
+ case 3:
+ BIO_puts(out, " (Unicast/Multicast)");
+ break;
+ case 4:
+ BIO_puts(out, " (MPLS)");
+ break;
+ case 64:
+ BIO_puts(out, " (Tunnel)");
+ break;
+ case 65:
+ BIO_puts(out, " (VPLS)");
+ break;
+ case 66:
+ BIO_puts(out, " (BGP MDT)");
+ break;
+ case 128:
+ BIO_puts(out, " (MPLS-labeled VPN)");
+ break;
+ default:
+ BIO_printf(out, " (Unknown SAFI %u)",
+ (unsigned) f->addressFamily->data[2]);
+ break;
+ }
+ }
+ switch (f->ipAddressChoice->type) {
+ case IPAddressChoice_inherit:
+ BIO_puts(out, ": inherit\n");
+ break;
+ case IPAddressChoice_addressesOrRanges:
+ BIO_puts(out, ":\n");
+ if (!i2r_IPAddressOrRanges(out,
+ indent + 2,
+ f->ipAddressChoice->u.addressesOrRanges,
+ afi))
+ return 0;
+ break;
+ }
+ }
+ return 1;
+}
+
+/*
+ * Sort comparison function for a sequence of IPAddressOrRange
+ * elements.
+ */
+static int IPAddressOrRange_cmp(const IPAddressOrRange *a,
+ const IPAddressOrRange *b,
+ const int length)
+{
+ unsigned char addr_a[ADDR_RAW_BUF_LEN], addr_b[ADDR_RAW_BUF_LEN];
+ int prefixlen_a = 0, prefixlen_b = 0;
+ int r;
+
+ switch (a->type) {
+ case IPAddressOrRange_addressPrefix:
+ addr_expand(addr_a, a->u.addressPrefix, length, 0x00);
+ prefixlen_a = addr_prefixlen(a->u.addressPrefix);
+ break;
+ case IPAddressOrRange_addressRange:
+ addr_expand(addr_a, a->u.addressRange->min, length, 0x00);
+ prefixlen_a = length * 8;
+ break;
+ }
+
+ switch (b->type) {
+ case IPAddressOrRange_addressPrefix:
+ addr_expand(addr_b, b->u.addressPrefix, length, 0x00);
+ prefixlen_b = addr_prefixlen(b->u.addressPrefix);
+ break;
+ case IPAddressOrRange_addressRange:
+ addr_expand(addr_b, b->u.addressRange->min, length, 0x00);
+ prefixlen_b = length * 8;
+ break;
+ }
+
+ if ((r = memcmp(addr_a, addr_b, length)) != 0)
+ return r;
+ else
+ return prefixlen_a - prefixlen_b;
+}
+
+/*
+ * IPv4-specific closure over IPAddressOrRange_cmp, since sk_sort()
+ * comparision routines are only allowed two arguments.
+ */
+static int v4IPAddressOrRange_cmp(const IPAddressOrRange * const *a,
+ const IPAddressOrRange * const *b)
+{
+ return IPAddressOrRange_cmp(*a, *b, 4);
+}
+
+/*
+ * IPv6-specific closure over IPAddressOrRange_cmp, since sk_sort()
+ * comparision routines are only allowed two arguments.
+ */
+static int v6IPAddressOrRange_cmp(const IPAddressOrRange * const *a,
+ const IPAddressOrRange * const *b)
+{
+ return IPAddressOrRange_cmp(*a, *b, 16);
+}
+
+/*
+ * Calculate whether a range collapses to a prefix.
+ * See last paragraph of RFC 3779 2.2.3.7.
+ */
+static int range_should_be_prefix(const unsigned char *min,
+ const unsigned char *max,
+ const int length)
+{
+ unsigned char mask;
+ int i, j;
+
+ for (i = 0; i < length && min[i] == max[i]; i++)
+ ;
+ for (j = length - 1; j >= 0 && min[j] == 0x00 && max[j] == 0xFF; j--)
+ ;
+ if (i < j)
+ return -1;
+ if (i > j)
+ return i * 8;
+ mask = min[i] ^ max[i];
+ switch (mask) {
+ case 0x01: j = 7; break;
+ case 0x03: j = 6; break;
+ case 0x07: j = 5; break;
+ case 0x0F: j = 4; break;
+ case 0x1F: j = 3; break;
+ case 0x3F: j = 2; break;
+ case 0x7F: j = 1; break;
+ default: return -1;
+ }
+ if ((min[i] & mask) != 0 || (max[i] & mask) != mask)
+ return -1;
+ else
+ return i * 8 + j;
+}
+
+/*
+ * Construct a prefix.
+ */
+static int make_addressPrefix(IPAddressOrRange **result,
+ unsigned char *addr,
+ const int prefixlen)
+{
+ int bytelen = (prefixlen + 7) / 8, bitlen = prefixlen % 8;
+ IPAddressOrRange *aor = IPAddressOrRange_new();
+
+ if (aor == NULL)
+ return 0;
+ aor->type = IPAddressOrRange_addressPrefix;
+ if (aor->u.addressPrefix == NULL &&
+ (aor->u.addressPrefix = ASN1_BIT_STRING_new()) == NULL)
+ goto err;
+ if (!ASN1_BIT_STRING_set(aor->u.addressPrefix, addr, bytelen))
+ goto err;
+ aor->u.addressPrefix->flags &= ~7;
+ aor->u.addressPrefix->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ if (bitlen > 0) {
+ aor->u.addressPrefix->data[bytelen - 1] &= ~(0xFF >> bitlen);
+ aor->u.addressPrefix->flags |= 8 - bitlen;
+ }
+
+ *result = aor;
+ return 1;
+
+ err:
+ IPAddressOrRange_free(aor);
+ return 0;
+}
+
+/*
+ * Construct a range. If it can be expressed as a prefix,
+ * return a prefix instead. Doing this here simplifies
+ * the rest of the code considerably.
+ */
+static int make_addressRange(IPAddressOrRange **result,
+ unsigned char *min,
+ unsigned char *max,
+ const int length)
+{
+ IPAddressOrRange *aor;
+ int i, prefixlen;
+
+ if ((prefixlen = range_should_be_prefix(min, max, length)) >= 0)
+ return make_addressPrefix(result, min, prefixlen);
+
+ if ((aor = IPAddressOrRange_new()) == NULL)
+ return 0;
+ aor->type = IPAddressOrRange_addressRange;
+ assert(aor->u.addressRange == NULL);
+ if ((aor->u.addressRange = IPAddressRange_new()) == NULL)
+ goto err;
+ if (aor->u.addressRange->min == NULL &&
+ (aor->u.addressRange->min = ASN1_BIT_STRING_new()) == NULL)
+ goto err;
+ if (aor->u.addressRange->max == NULL &&
+ (aor->u.addressRange->max = ASN1_BIT_STRING_new()) == NULL)
+ goto err;
+
+ for (i = length; i > 0 && min[i - 1] == 0x00; --i)
+ ;
+ if (!ASN1_BIT_STRING_set(aor->u.addressRange->min, min, i))
+ goto err;
+ aor->u.addressRange->min->flags &= ~7;
+ aor->u.addressRange->min->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ if (i > 0) {
+ unsigned char b = min[i - 1];
+ int j = 1;
+ while ((b & (0xFFU >> j)) != 0)
+ ++j;
+ aor->u.addressRange->min->flags |= 8 - j;
+ }
+
+ for (i = length; i > 0 && max[i - 1] == 0xFF; --i)
+ ;
+ if (!ASN1_BIT_STRING_set(aor->u.addressRange->max, max, i))
+ goto err;
+ aor->u.addressRange->max->flags &= ~7;
+ aor->u.addressRange->max->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ if (i > 0) {
+ unsigned char b = max[i - 1];
+ int j = 1;
+ while ((b & (0xFFU >> j)) != (0xFFU >> j))
+ ++j;
+ aor->u.addressRange->max->flags |= 8 - j;
+ }
+
+ *result = aor;
+ return 1;
+
+ err:
+ IPAddressOrRange_free(aor);
+ return 0;
+}
+
+/*
+ * Construct a new address family or find an existing one.
+ */
+static IPAddressFamily *make_IPAddressFamily(IPAddrBlocks *addr,
+ const unsigned afi,
+ const unsigned *safi)
+{
+ IPAddressFamily *f;
+ unsigned char key[3];
+ unsigned keylen;
+ int i;
+
+ key[0] = (afi >> 8) & 0xFF;
+ key[1] = afi & 0xFF;
+ if (safi != NULL) {
+ key[2] = *safi & 0xFF;
+ keylen = 3;
+ } else {
+ keylen = 2;
+ }
+
+ for (i = 0; i < sk_IPAddressFamily_num(addr); i++) {
+ f = sk_IPAddressFamily_value(addr, i);
+ assert(f->addressFamily->data != NULL);
+ if (f->addressFamily->length == keylen &&
+ !memcmp(f->addressFamily->data, key, keylen))
+ return f;
+ }
+
+ if ((f = IPAddressFamily_new()) == NULL)
+ goto err;
+ if (f->ipAddressChoice == NULL &&
+ (f->ipAddressChoice = IPAddressChoice_new()) == NULL)
+ goto err;
+ if (f->addressFamily == NULL &&
+ (f->addressFamily = ASN1_OCTET_STRING_new()) == NULL)
+ goto err;
+ if (!ASN1_OCTET_STRING_set(f->addressFamily, key, keylen))
+ goto err;
+ if (!sk_IPAddressFamily_push(addr, f))
+ goto err;
+
+ return f;
+
+ err:
+ IPAddressFamily_free(f);
+ return NULL;
+}
+
+/*
+ * Add an inheritance element.
+ */
+int v3_addr_add_inherit(IPAddrBlocks *addr,
+ const unsigned afi,
+ const unsigned *safi)
+{
+ IPAddressFamily *f = make_IPAddressFamily(addr, afi, safi);
+ if (f == NULL ||
+ f->ipAddressChoice == NULL ||
+ (f->ipAddressChoice->type == IPAddressChoice_addressesOrRanges &&
+ f->ipAddressChoice->u.addressesOrRanges != NULL))
+ return 0;
+ if (f->ipAddressChoice->type == IPAddressChoice_inherit &&
+ f->ipAddressChoice->u.inherit != NULL)
+ return 1;
+ if (f->ipAddressChoice->u.inherit == NULL &&
+ (f->ipAddressChoice->u.inherit = ASN1_NULL_new()) == NULL)
+ return 0;
+ f->ipAddressChoice->type = IPAddressChoice_inherit;
+ return 1;
+}
+
+/*
+ * Construct an IPAddressOrRange sequence, or return an existing one.
+ */
+static IPAddressOrRanges *make_prefix_or_range(IPAddrBlocks *addr,
+ const unsigned afi,
+ const unsigned *safi)
+{
+ IPAddressFamily *f = make_IPAddressFamily(addr, afi, safi);
+ IPAddressOrRanges *aors = NULL;
+
+ if (f == NULL ||
+ f->ipAddressChoice == NULL ||
+ (f->ipAddressChoice->type == IPAddressChoice_inherit &&
+ f->ipAddressChoice->u.inherit != NULL))
+ return NULL;
+ if (f->ipAddressChoice->type == IPAddressChoice_addressesOrRanges)
+ aors = f->ipAddressChoice->u.addressesOrRanges;
+ if (aors != NULL)
+ return aors;
+ if ((aors = sk_IPAddressOrRange_new_null()) == NULL)
+ return NULL;
+ switch (afi) {
+ case IANA_AFI_IPV4:
+ sk_IPAddressOrRange_set_cmp_func(aors, v4IPAddressOrRange_cmp);
+ break;
+ case IANA_AFI_IPV6:
+ sk_IPAddressOrRange_set_cmp_func(aors, v6IPAddressOrRange_cmp);
+ break;
+ }
+ f->ipAddressChoice->type = IPAddressChoice_addressesOrRanges;
+ f->ipAddressChoice->u.addressesOrRanges = aors;
+ return aors;
+}
+
+/*
+ * Add a prefix.
+ */
+int v3_addr_add_prefix(IPAddrBlocks *addr,
+ const unsigned afi,
+ const unsigned *safi,
+ unsigned char *a,
+ const int prefixlen)
+{
+ IPAddressOrRanges *aors = make_prefix_or_range(addr, afi, safi);
+ IPAddressOrRange *aor;
+ if (aors == NULL || !make_addressPrefix(&aor, a, prefixlen))
+ return 0;
+ if (sk_IPAddressOrRange_push(aors, aor))
+ return 1;
+ IPAddressOrRange_free(aor);
+ return 0;
+}
+
+/*
+ * Add a range.
+ */
+int v3_addr_add_range(IPAddrBlocks *addr,
+ const unsigned afi,
+ const unsigned *safi,
+ unsigned char *min,
+ unsigned char *max)
+{
+ IPAddressOrRanges *aors = make_prefix_or_range(addr, afi, safi);
+ IPAddressOrRange *aor;
+ int length = length_from_afi(afi);
+ if (aors == NULL)
+ return 0;
+ if (!make_addressRange(&aor, min, max, length))
+ return 0;
+ if (sk_IPAddressOrRange_push(aors, aor))
+ return 1;
+ IPAddressOrRange_free(aor);
+ return 0;
+}
+
+/*
+ * Extract min and max values from an IPAddressOrRange.
+ */
+static void extract_min_max(IPAddressOrRange *aor,
+ unsigned char *min,
+ unsigned char *max,
+ int length)
+{
+ assert(aor != NULL && min != NULL && max != NULL);
+ switch (aor->type) {
+ case IPAddressOrRange_addressPrefix:
+ addr_expand(min, aor->u.addressPrefix, length, 0x00);
+ addr_expand(max, aor->u.addressPrefix, length, 0xFF);
+ return;
+ case IPAddressOrRange_addressRange:
+ addr_expand(min, aor->u.addressRange->min, length, 0x00);
+ addr_expand(max, aor->u.addressRange->max, length, 0xFF);
+ return;
+ }
+}
+
+/*
+ * Public wrapper for extract_min_max().
+ */
+int v3_addr_get_range(IPAddressOrRange *aor,
+ const unsigned afi,
+ unsigned char *min,
+ unsigned char *max,
+ const int length)
+{
+ int afi_length = length_from_afi(afi);
+ if (aor == NULL || min == NULL || max == NULL ||
+ afi_length == 0 || length < afi_length ||
+ (aor->type != IPAddressOrRange_addressPrefix &&
+ aor->type != IPAddressOrRange_addressRange))
+ return 0;
+ extract_min_max(aor, min, max, afi_length);
+ return afi_length;
+}
+
+/*
+ * Sort comparision function for a sequence of IPAddressFamily.
+ *
+ * The last paragraph of RFC 3779 2.2.3.3 is slightly ambiguous about
+ * the ordering: I can read it as meaning that IPv6 without a SAFI
+ * comes before IPv4 with a SAFI, which seems pretty weird. The
+ * examples in appendix B suggest that the author intended the
+ * null-SAFI rule to apply only within a single AFI, which is what I
+ * would have expected and is what the following code implements.
+ */
+static int IPAddressFamily_cmp(const IPAddressFamily * const *a_,
+ const IPAddressFamily * const *b_)
+{
+ const ASN1_OCTET_STRING *a = (*a_)->addressFamily;
+ const ASN1_OCTET_STRING *b = (*b_)->addressFamily;
+ int len = ((a->length <= b->length) ? a->length : b->length);
+ int cmp = memcmp(a->data, b->data, len);
+ return cmp ? cmp : a->length - b->length;
+}
+
+/*
+ * Check whether an IPAddrBLocks is in canonical form.
+ */
+int v3_addr_is_canonical(IPAddrBlocks *addr)
+{
+ unsigned char a_min[ADDR_RAW_BUF_LEN], a_max[ADDR_RAW_BUF_LEN];
+ unsigned char b_min[ADDR_RAW_BUF_LEN], b_max[ADDR_RAW_BUF_LEN];
+ IPAddressOrRanges *aors;
+ int i, j, k;
+
+ /*
+ * Empty extension is cannonical.
+ */
+ if (addr == NULL)
+ return 1;
+
+ /*
+ * Check whether the top-level list is in order.
+ */
+ for (i = 0; i < sk_IPAddressFamily_num(addr) - 1; i++) {
+ const IPAddressFamily *a = sk_IPAddressFamily_value(addr, i);
+ const IPAddressFamily *b = sk_IPAddressFamily_value(addr, i + 1);
+ if (IPAddressFamily_cmp(&a, &b) >= 0)
+ return 0;
+ }
+
+ /*
+ * Top level's ok, now check each address family.
+ */
+ for (i = 0; i < sk_IPAddressFamily_num(addr); i++) {
+ IPAddressFamily *f = sk_IPAddressFamily_value(addr, i);
+ int length = length_from_afi(v3_addr_get_afi(f));
+
+ /*
+ * Inheritance is canonical. Anything other than inheritance or
+ * a SEQUENCE OF IPAddressOrRange is an ASN.1 error or something.
+ */
+ if (f == NULL || f->ipAddressChoice == NULL)
+ return 0;
+ switch (f->ipAddressChoice->type) {
+ case IPAddressChoice_inherit:
+ continue;
+ case IPAddressChoice_addressesOrRanges:
+ break;
+ default:
+ return 0;
+ }
+
+ /*
+ * It's an IPAddressOrRanges sequence, check it.
+ */
+ aors = f->ipAddressChoice->u.addressesOrRanges;
+ if (sk_IPAddressOrRange_num(aors) == 0)
+ return 0;
+ for (j = 0; j < sk_IPAddressOrRange_num(aors) - 1; j++) {
+ IPAddressOrRange *a = sk_IPAddressOrRange_value(aors, j);
+ IPAddressOrRange *b = sk_IPAddressOrRange_value(aors, j + 1);
+
+ extract_min_max(a, a_min, a_max, length);
+ extract_min_max(b, b_min, b_max, length);
+
+ /*
+ * Punt misordered list, overlapping start, or inverted range.
+ */
+ if (memcmp(a_min, b_min, length) >= 0 ||
+ memcmp(a_min, a_max, length) > 0 ||
+ memcmp(b_min, b_max, length) > 0)
+ return 0;
+
+ /*
+ * Punt if adjacent or overlapping. Check for adjacency by
+ * subtracting one from b_min first.
+ */
+ for (k = length - 1; k >= 0 && b_min[k]-- == 0x00; k--)
+ ;
+ if (memcmp(a_max, b_min, length) >= 0)
+ return 0;
+
+ /*
+ * Check for range that should be expressed as a prefix.
+ */
+ if (a->type == IPAddressOrRange_addressRange &&
+ range_should_be_prefix(a_min, a_max, length) >= 0)
+ return 0;
+ }
+
+ /*
+ * Check final range to see if it should be a prefix.
+ */
+ j = sk_IPAddressOrRange_num(aors) - 1;
+ {
+ IPAddressOrRange *a = sk_IPAddressOrRange_value(aors, j);
+ if (a->type == IPAddressOrRange_addressRange) {
+ extract_min_max(a, a_min, a_max, length);
+ if (range_should_be_prefix(a_min, a_max, length) >= 0)
+ return 0;
+ }
+ }
+ }
+
+ /*
+ * If we made it through all that, we're happy.
+ */
+ return 1;
+}
+
+/*
+ * Whack an IPAddressOrRanges into canonical form.
+ */
+static int IPAddressOrRanges_canonize(IPAddressOrRanges *aors,
+ const unsigned afi)
+{
+ int i, j, length = length_from_afi(afi);
+
+ /*
+ * Sort the IPAddressOrRanges sequence.
+ */
+ sk_IPAddressOrRange_sort(aors);
+
+ /*
+ * Clean up representation issues, punt on duplicates or overlaps.
+ */
+ for (i = 0; i < sk_IPAddressOrRange_num(aors) - 1; i++) {
+ IPAddressOrRange *a = sk_IPAddressOrRange_value(aors, i);
+ IPAddressOrRange *b = sk_IPAddressOrRange_value(aors, i + 1);
+ unsigned char a_min[ADDR_RAW_BUF_LEN], a_max[ADDR_RAW_BUF_LEN];
+ unsigned char b_min[ADDR_RAW_BUF_LEN], b_max[ADDR_RAW_BUF_LEN];
+
+ extract_min_max(a, a_min, a_max, length);
+ extract_min_max(b, b_min, b_max, length);
+
+ /*
+ * Punt overlaps.
+ */
+ if (memcmp(a_max, b_min, length) >= 0)
+ return 0;
+
+ /*
+ * Merge if a and b are adjacent. We check for
+ * adjacency by subtracting one from b_min first.
+ */
+ for (j = length - 1; j >= 0 && b_min[j]-- == 0x00; j--)
+ ;
+ if (memcmp(a_max, b_min, length) == 0) {
+ IPAddressOrRange *merged;
+ if (!make_addressRange(&merged, a_min, b_max, length))
+ return 0;
+ sk_IPAddressOrRange_set(aors, i, merged);
+ sk_IPAddressOrRange_delete(aors, i + 1);
+ IPAddressOrRange_free(a);
+ IPAddressOrRange_free(b);
+ --i;
+ continue;
+ }
+ }
+
+ return 1;
+}
+
+/*
+ * Whack an IPAddrBlocks extension into canonical form.
+ */
+int v3_addr_canonize(IPAddrBlocks *addr)
+{
+ int i;
+ for (i = 0; i < sk_IPAddressFamily_num(addr); i++) {
+ IPAddressFamily *f = sk_IPAddressFamily_value(addr, i);
+ if (f->ipAddressChoice->type == IPAddressChoice_addressesOrRanges &&
+ !IPAddressOrRanges_canonize(f->ipAddressChoice->u.addressesOrRanges,
+ v3_addr_get_afi(f)))
+ return 0;
+ }
+ sk_IPAddressFamily_sort(addr);
+ assert(v3_addr_is_canonical(addr));
+ return 1;
+}
+
+/*
+ * v2i handler for the IPAddrBlocks extension.
+ */
+static void *v2i_IPAddrBlocks(struct v3_ext_method *method,
+ struct v3_ext_ctx *ctx,
+ STACK_OF(CONF_VALUE) *values)
+{
+ static const char v4addr_chars[] = "0123456789.";
+ static const char v6addr_chars[] = "0123456789.:abcdefABCDEF";
+ IPAddrBlocks *addr = NULL;
+ char *s = NULL, *t;
+ int i;
+
+ if ((addr = sk_IPAddressFamily_new(IPAddressFamily_cmp)) == NULL) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, 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);
+ unsigned char min[ADDR_RAW_BUF_LEN], max[ADDR_RAW_BUF_LEN];
+ unsigned afi, *safi = NULL, safi_;
+ const char *addr_chars;
+ int prefixlen, i1, i2, delim, length;
+
+ if ( !name_cmp(val->name, "IPv4")) {
+ afi = IANA_AFI_IPV4;
+ } else if (!name_cmp(val->name, "IPv6")) {
+ afi = IANA_AFI_IPV6;
+ } else if (!name_cmp(val->name, "IPv4-SAFI")) {
+ afi = IANA_AFI_IPV4;
+ safi = &safi_;
+ } else if (!name_cmp(val->name, "IPv6-SAFI")) {
+ afi = IANA_AFI_IPV6;
+ safi = &safi_;
+ } else {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_EXTENSION_NAME_ERROR);
+ X509V3_conf_err(val);
+ goto err;
+ }
+
+ switch (afi) {
+ case IANA_AFI_IPV4:
+ addr_chars = v4addr_chars;
+ break;
+ case IANA_AFI_IPV6:
+ addr_chars = v6addr_chars;
+ break;
+ }
+
+ length = length_from_afi(afi);
+
+ /*
+ * Handle SAFI, if any, and strdup() so we can null-terminate
+ * the other input values.
+ */
+ if (safi != NULL) {
+ *safi = strtoul(val->value, &t, 0);
+ t += strspn(t, " \t");
+ if (*safi > 0xFF || *t++ != ':') {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_INVALID_SAFI);
+ X509V3_conf_err(val);
+ goto err;
+ }
+ t += strspn(t, " \t");
+ s = strdup(t);
+ } else {
+ s = strdup(val->value);
+ }
+ if (s == NULL) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /*
+ * Check for inheritance. Not worth additional complexity to
+ * optimize this (seldom-used) case.
+ */
+ if (!strcmp(s, "inherit")) {
+ if (!v3_addr_add_inherit(addr, afi, safi)) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_INVALID_INHERITANCE);
+ X509V3_conf_err(val);
+ goto err;
+ }
+ OPENSSL_free(s);
+ s = NULL;
+ continue;
+ }
+
+ i1 = strspn(s, addr_chars);
+ i2 = i1 + strspn(s + i1, " \t");
+ delim = s[i2++];
+ s[i1] = '\0';
+
+ if (a2i_ipadd(min, s) != length) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_INVALID_IPADDRESS);
+ X509V3_conf_err(val);
+ goto err;
+ }
+
+ switch (delim) {
+ case '/':
+ prefixlen = (int) strtoul(s + i2, &t, 10);
+ if (t == s + i2 || *t != '\0') {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_EXTENSION_VALUE_ERROR);
+ X509V3_conf_err(val);
+ goto err;
+ }
+ if (!v3_addr_add_prefix(addr, afi, safi, min, prefixlen)) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ break;
+ case '-':
+ i1 = i2 + strspn(s + i2, " \t");
+ i2 = i1 + strspn(s + i1, addr_chars);
+ if (i1 == i2 || s[i2] != '\0') {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_EXTENSION_VALUE_ERROR);
+ X509V3_conf_err(val);
+ goto err;
+ }
+ if (a2i_ipadd(max, s + i1) != length) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_INVALID_IPADDRESS);
+ X509V3_conf_err(val);
+ goto err;
+ }
+ if (!v3_addr_add_range(addr, afi, safi, min, max)) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ break;
+ case '\0':
+ if (!v3_addr_add_prefix(addr, afi, safi, min, length * 8)) {
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ break;
+ default:
+ X509V3err(X509V3_F_V2I_IPADDRBLOCKS, X509V3_R_EXTENSION_VALUE_ERROR);
+ X509V3_conf_err(val);
+ goto err;
+ }
+
+ OPENSSL_free(s);
+ s = NULL;
+ }
+
+ /*
+ * Canonize the result, then we're done.
+ */
+ if (!v3_addr_canonize(addr))
+ goto err;
+ return addr;
+
+ err:
+ OPENSSL_free(s);
+ sk_IPAddressFamily_pop_free(addr, IPAddressFamily_free);
+ return NULL;
+}
+
+/*
+ * OpenSSL dispatch
+ */
+X509V3_EXT_METHOD v3_addr = {
+ NID_sbgp_ipAddrBlock, /* nid */
+ 0, /* flags */
+ ASN1_ITEM_ref(IPAddrBlocks), /* template */
+ 0, 0, 0, 0, /* old functions, ignored */
+ 0, /* i2s */
+ 0, /* s2i */
+ 0, /* i2v */
+ v2i_IPAddrBlocks, /* v2i */
+ i2r_IPAddrBlocks, /* i2r */
+ 0, /* r2i */
+ NULL /* extension-specific data */
+};
+
+/*
+ * Figure out whether extension sues inheritance.
+ */
+int v3_addr_inherits(IPAddrBlocks *addr)
+{
+ int i;
+ if (addr == NULL)
+ return 0;
+ for (i = 0; i < sk_IPAddressFamily_num(addr); i++) {
+ IPAddressFamily *f = sk_IPAddressFamily_value(addr, i);
+ if (f->ipAddressChoice->type == IPAddressChoice_inherit)
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Figure out whether parent contains child.
+ */
+static int addr_contains(IPAddressOrRanges *parent,
+ IPAddressOrRanges *child,
+ int length)
+{
+ unsigned char p_min[ADDR_RAW_BUF_LEN], p_max[ADDR_RAW_BUF_LEN];
+ unsigned char c_min[ADDR_RAW_BUF_LEN], c_max[ADDR_RAW_BUF_LEN];
+ int p, c;
+
+ if (child == NULL || parent == child)
+ return 1;
+ if (parent == NULL)
+ return 0;
+
+ p = 0;
+ for (c = 0; c < sk_IPAddressOrRange_num(child); c++) {
+ extract_min_max(sk_IPAddressOrRange_value(child, c),
+ c_min, c_max, length);
+ for (;; p++) {
+ if (p >= sk_IPAddressOrRange_num(parent))
+ return 0;
+ extract_min_max(sk_IPAddressOrRange_value(parent, p),
+ p_min, p_max, length);
+ if (memcmp(p_max, c_max, length) < 0)
+ continue;
+ if (memcmp(p_min, c_min, length) > 0)
+ return 0;
+ break;
+ }
+ }
+
+ return 1;
+}
+
+/*
+ * Test whether a is a subset of b.
+ */
+int v3_addr_subset(IPAddrBlocks *a, IPAddrBlocks *b)
+{
+ int i;
+ if (a == NULL || a == b)
+ return 1;
+ if (b == NULL || v3_addr_inherits(a) || v3_addr_inherits(b))
+ return 0;
+ sk_IPAddressFamily_set_cmp_func(b, IPAddressFamily_cmp);
+ for (i = 0; i < sk_IPAddressFamily_num(a); i++) {
+ IPAddressFamily *fa = sk_IPAddressFamily_value(a, i);
+ int j = sk_IPAddressFamily_find(b, fa);
+ IPAddressFamily *fb = sk_IPAddressFamily_value(b, j);
+ if (!addr_contains(fb->ipAddressChoice->u.addressesOrRanges,
+ fa->ipAddressChoice->u.addressesOrRanges,
+ length_from_afi(v3_addr_get_afi(fb))))
+ return 0;
+ }
+ return 1;
+}
+
+/*
+ * 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 2.3 path validation.
+ */
+static int v3_addr_validate_path_internal(X509_STORE_CTX *ctx,
+ STACK_OF(X509) *chain,
+ IPAddrBlocks *ext)
+{
+ IPAddrBlocks *child = NULL;
+ int i, j, ret = 1;
+ X509 *x;
+
+ assert(chain != NULL && sk_X509_num(chain) > 0);
+ assert(ctx != NULL || ext != NULL);
+ 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);
+ assert(x != NULL);
+ if ((ext = x->rfc3779_addr) == NULL)
+ goto done;
+ }
+ if (!v3_addr_is_canonical(ext))
+ validation_err(X509_V_ERR_INVALID_EXTENSION);
+ sk_IPAddressFamily_set_cmp_func(ext, IPAddressFamily_cmp);
+ if ((child = sk_IPAddressFamily_dup(ext)) == NULL) {
+ X509V3err(X509V3_F_V3_ADDR_VALIDATE_PATH_INTERNAL, ERR_R_MALLOC_FAILURE);
+ ret = 0;
+ goto done;
+ }
+
+ /*
+ * Now walk up the chain. 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);
+ assert(x != NULL);
+ if (!v3_addr_is_canonical(x->rfc3779_addr))
+ validation_err(X509_V_ERR_INVALID_EXTENSION);
+ if (x->rfc3779_addr == NULL) {
+ for (j = 0; j < sk_IPAddressFamily_num(child); j++) {
+ IPAddressFamily *fc = sk_IPAddressFamily_value(child, j);
+ if (fc->ipAddressChoice->type != IPAddressChoice_inherit) {
+ validation_err(X509_V_ERR_UNNESTED_RESOURCE);
+ break;
+ }
+ }
+ continue;
+ }
+ sk_IPAddressFamily_set_cmp_func(x->rfc3779_addr, IPAddressFamily_cmp);
+ for (j = 0; j < sk_IPAddressFamily_num(child); j++) {
+ IPAddressFamily *fc = sk_IPAddressFamily_value(child, j);
+ int k = sk_IPAddressFamily_find(x->rfc3779_addr, fc);
+ IPAddressFamily *fp = sk_IPAddressFamily_value(x->rfc3779_addr, k);
+ if (fp == NULL) {
+ if (fc->ipAddressChoice->type == IPAddressChoice_addressesOrRanges) {
+ validation_err(X509_V_ERR_UNNESTED_RESOURCE);
+ break;
+ }
+ continue;
+ }
+ if (fp->ipAddressChoice->type == IPAddressChoice_addressesOrRanges) {
+ if (fc->ipAddressChoice->type == IPAddressChoice_inherit ||
+ addr_contains(fp->ipAddressChoice->u.addressesOrRanges,
+ fc->ipAddressChoice->u.addressesOrRanges,
+ length_from_afi(v3_addr_get_afi(fc))))
+ sk_IPAddressFamily_set(child, j, fp);
+ else
+ validation_err(X509_V_ERR_UNNESTED_RESOURCE);
+ }
+ }
+ }
+
+ /*
+ * Trust anchor can't inherit.
+ */
+ assert(x != NULL);
+ if (x->rfc3779_addr != NULL) {
+ for (j = 0; j < sk_IPAddressFamily_num(x->rfc3779_addr); j++) {
+ IPAddressFamily *fp = sk_IPAddressFamily_value(x->rfc3779_addr, j);
+ if (fp->ipAddressChoice->type == IPAddressChoice_inherit &&
+ sk_IPAddressFamily_find(child, fp) >= 0)
+ validation_err(X509_V_ERR_UNNESTED_RESOURCE);
+ }
+ }
+
+ done:
+ sk_IPAddressFamily_free(child);
+ return ret;
+}
+
+#undef validation_err
+
+/*
+ * RFC 3779 2.3 path validation -- called from X509_verify_cert().
+ */
+int v3_addr_validate_path(X509_STORE_CTX *ctx)
+{
+ return v3_addr_validate_path_internal(ctx, ctx->chain, NULL);
+}
+
+/*
+ * RFC 3779 2.3 path validation of an extension.
+ * Test whether chain covers extension.
+ */
+int v3_addr_validate_resource_set(STACK_OF(X509) *chain,
+ IPAddrBlocks *ext,
+ int allow_inheritance)
+{
+ if (ext == NULL)
+ return 1;
+ if (chain == NULL || sk_X509_num(chain) == 0)
+ return 0;
+ if (!allow_inheritance && v3_addr_inherits(ext))
+ return 0;
+ return v3_addr_validate_path_internal(NULL, chain, ext);
+}
+
+#endif /* OPENSSL_RFC3779 */
diff --git a/crypto/x509v3/v3_asid.c b/crypto/x509v3/v3_asid.c
new file mode 100644
index 0000000..68e7661
--- /dev/null
+++ b/crypto/x509v3/v3_asid.c
@@ -0,0 +1,844 @@
+/*
+ * 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 <assert.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>
+
+#ifdef OPENSSL_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(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_;
+
+ 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));
+
+ 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;
+ 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;
+ 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)
+{
+ 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;
+ }
+
+ 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;
+
+ /*
+ * We have a list. Sort it.
+ */
+ assert(choice->type == ASIdentifierChoice_asIdsOrRanges);
+ 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).
+ */
+ assert(ASN1_INTEGER_cmp(a_min, b_min) <= 0);
+
+ /*
+ * 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);
+ sk_ASIdOrRange_delete(choice->u.asIdsOrRanges, i + 1);
+ i--;
+ continue;
+ }
+ }
+
+ 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(struct v3_ext_method *method,
+ struct v3_ext_ctx *ctx,
+ STACK_OF(CONF_VALUE) *values)
+{
+ 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);
+ ASN1_INTEGER *min = NULL, *max = NULL;
+ 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) {
+ ASN1_INTEGER_free(min);
+ ASN1_INTEGER_free(max);
+ X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ if (!v3_asid_add_id_or_range(asid, which, min, max)) {
+ ASN1_INTEGER_free(min);
+ ASN1_INTEGER_free(max);
+ X509V3err(X509V3_F_V2I_ASIDENTIFIERS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+
+ /*
+ * Canonize the result, then we're done.
+ */
+ if (!v3_asid_canonize(asid))
+ goto err;
+ return asid;
+
+ err:
+ ASIdentifiers_free(asid);
+ return NULL;
+}
+
+/*
+ * OpenSSL dispatch.
+ */
+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;
+
+ assert(chain != NULL && sk_X509_num(chain) > 0);
+ assert(ctx != NULL || ext != NULL);
+ 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);
+ 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);
+ 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.
+ */
+ 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_RFC3779 */
diff --git a/crypto/x509v3/v3_purp.c b/crypto/x509v3/v3_purp.c
index 47b7e0f..9d0dd70 100644
--- a/crypto/x509v3/v3_purp.c
+++ b/crypto/x509v3/v3_purp.c
@@ -287,7 +287,12 @@
NID_key_usage, /* 83 */
NID_subject_alt_name, /* 85 */
NID_basic_constraints, /* 87 */
+ NID_certificate_policies, /* 89 */
NID_ext_key_usage, /* 126 */
+#ifdef OPENSSL_RFC3779
+ NID_sbgp_ipAddrBlock, /* 290 */
+ NID_sbgp_autonomousSysNum, /* 291 */
+#endif
NID_proxyCertInfo /* 661 */
};
@@ -413,6 +418,11 @@
x->skid =X509_get_ext_d2i(x, NID_subject_key_identifier, NULL, NULL);
x->akid =X509_get_ext_d2i(x, NID_authority_key_identifier, NULL, NULL);
x->crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
+#ifdef OPENSSL_RFC3779
+ x->rfc3779_addr =X509_get_ext_d2i(x, NID_sbgp_ipAddrBlock, NULL, NULL);
+ x->rfc3779_asid =X509_get_ext_d2i(x, NID_sbgp_autonomousSysNum,
+ NULL, NULL);
+#endif
for (i = 0; i < X509_get_ext_count(x); i++)
{
ex = X509_get_ext(x, i);
diff --git a/crypto/x509v3/v3_utl.c b/crypto/x509v3/v3_utl.c
index 7911c4b..7c1d26f 100644
--- a/crypto/x509v3/v3_utl.c
+++ b/crypto/x509v3/v3_utl.c
@@ -71,7 +71,6 @@
static void str_free(void *str);
static int append_ia5(STACK **sk, ASN1_IA5STRING *email);
-static int a2i_ipadd(unsigned char *ipout, const char *ipasc);
static int ipv4_from_asc(unsigned char *v4, const char *in);
static int ipv6_from_asc(unsigned char *v6, const char *in);
static int ipv6_cb(const char *elem, int len, void *usr);
@@ -615,7 +614,7 @@
}
-static int a2i_ipadd(unsigned char *ipout, const char *ipasc)
+int a2i_ipadd(unsigned char *ipout, const char *ipasc)
{
/* If string contains a ':' assume IPv6 */
diff --git a/crypto/x509v3/v3err.c b/crypto/x509v3/v3err.c
index 836a324..c50266b 100644
--- a/crypto/x509v3/v3err.c
+++ b/crypto/x509v3/v3err.c
@@ -70,6 +70,8 @@
static ERR_STRING_DATA X509V3_str_functs[]=
{
+{ERR_FUNC(X509V3_F_ASIDENTIFIERCHOICE_CANONIZE), "ASIDENTIFIERCHOICE_CANONIZE"},
+{ERR_FUNC(X509V3_F_ASIDENTIFIERCHOICE_IS_CANONICAL), "ASIDENTIFIERCHOICE_IS_CANONICAL"},
{ERR_FUNC(X509V3_F_COPY_EMAIL), "COPY_EMAIL"},
{ERR_FUNC(X509V3_F_COPY_ISSUER), "COPY_ISSUER"},
{ERR_FUNC(X509V3_F_DO_DIRNAME), "DO_DIRNAME"},
@@ -101,6 +103,7 @@
{ERR_FUNC(X509V3_F_SXNET_ADD_ID_ULONG), "SXNET_add_id_ulong"},
{ERR_FUNC(X509V3_F_SXNET_GET_ID_ASC), "SXNET_get_id_asc"},
{ERR_FUNC(X509V3_F_SXNET_GET_ID_ULONG), "SXNET_get_id_ulong"},
+{ERR_FUNC(X509V3_F_V2I_ASIDENTIFIERS), "V2I_ASIDENTIFIERS"},
{ERR_FUNC(X509V3_F_V2I_ASN1_BIT_STRING), "v2i_ASN1_BIT_STRING"},
{ERR_FUNC(X509V3_F_V2I_AUTHORITY_INFO_ACCESS), "V2I_AUTHORITY_INFO_ACCESS"},
{ERR_FUNC(X509V3_F_V2I_AUTHORITY_KEYID), "V2I_AUTHORITY_KEYID"},
@@ -110,11 +113,13 @@
{ERR_FUNC(X509V3_F_V2I_GENERAL_NAMES), "v2i_GENERAL_NAMES"},
{ERR_FUNC(X509V3_F_V2I_GENERAL_NAME_EX), "v2i_GENERAL_NAME_ex"},
{ERR_FUNC(X509V3_F_V2I_IDP), "V2I_IDP"},
+{ERR_FUNC(X509V3_F_V2I_IPADDRBLOCKS), "V2I_IPADDRBLOCKS"},
{ERR_FUNC(X509V3_F_V2I_ISSUER_ALT), "V2I_ISSUER_ALT"},
{ERR_FUNC(X509V3_F_V2I_NAME_CONSTRAINTS), "V2I_NAME_CONSTRAINTS"},
{ERR_FUNC(X509V3_F_V2I_POLICY_CONSTRAINTS), "V2I_POLICY_CONSTRAINTS"},
{ERR_FUNC(X509V3_F_V2I_POLICY_MAPPINGS), "V2I_POLICY_MAPPINGS"},
{ERR_FUNC(X509V3_F_V2I_SUBJECT_ALT), "V2I_SUBJECT_ALT"},
+{ERR_FUNC(X509V3_F_V3_ADDR_VALIDATE_PATH_INTERNAL), "V3_ADDR_VALIDATE_PATH_INTERNAL"},
{ERR_FUNC(X509V3_F_V3_GENERIC_EXTENSION), "V3_GENERIC_EXTENSION"},
{ERR_FUNC(X509V3_F_X509V3_ADD1_I2D), "X509V3_add1_i2d"},
{ERR_FUNC(X509V3_F_X509V3_ADD_VALUE), "X509V3_add_value"},
@@ -154,8 +159,12 @@
{ERR_REASON(X509V3_R_ILLEGAL_HEX_DIGIT) ,"illegal hex digit"},
{ERR_REASON(X509V3_R_INCORRECT_POLICY_SYNTAX_TAG),"incorrect policy syntax tag"},
{ERR_REASON(X509V3_R_INVAID_MULTIPLE_RDNS),"invaid multiple rdns"},
+{ERR_REASON(X509V3_R_INVALID_ASNUMBER) ,"invalid asnumber"},
+{ERR_REASON(X509V3_R_INVALID_ASRANGE) ,"invalid asrange"},
{ERR_REASON(X509V3_R_INVALID_BOOLEAN_STRING),"invalid boolean string"},
{ERR_REASON(X509V3_R_INVALID_EXTENSION_STRING),"invalid extension string"},
+{ERR_REASON(X509V3_R_INVALID_INHERITANCE),"invalid inheritance"},
+{ERR_REASON(X509V3_R_INVALID_IPADDRESS) ,"invalid ipaddress"},
{ERR_REASON(X509V3_R_INVALID_NAME) ,"invalid name"},
{ERR_REASON(X509V3_R_INVALID_NULL_ARGUMENT),"invalid null argument"},
{ERR_REASON(X509V3_R_INVALID_NULL_NAME) ,"invalid null name"},
@@ -167,6 +176,7 @@
{ERR_REASON(X509V3_R_INVALID_POLICY_IDENTIFIER),"invalid policy identifier"},
{ERR_REASON(X509V3_R_INVALID_PROXY_POLICY_SETTING),"invalid proxy policy setting"},
{ERR_REASON(X509V3_R_INVALID_PURPOSE) ,"invalid purpose"},
+{ERR_REASON(X509V3_R_INVALID_SAFI) ,"invalid safi"},
{ERR_REASON(X509V3_R_INVALID_SECTION) ,"invalid section"},
{ERR_REASON(X509V3_R_INVALID_SYNTAX) ,"invalid syntax"},
{ERR_REASON(X509V3_R_ISSUER_DECODE_ERROR),"issuer decode error"},
diff --git a/crypto/x509v3/x509v3.h b/crypto/x509v3/x509v3.h
index 26884d4..763a0d5 100644
--- a/crypto/x509v3/x509v3.h
+++ b/crypto/x509v3/x509v3.h
@@ -652,11 +652,161 @@
ASN1_OCTET_STRING *a2i_IPADDRESS(const char *ipasc);
ASN1_OCTET_STRING *a2i_IPADDRESS_NC(const char *ipasc);
+int a2i_ipadd(unsigned char *ipout, const char *ipasc);
int X509V3_NAME_from_section(X509_NAME *nm, STACK_OF(CONF_VALUE)*dn_sk,
unsigned long chtype);
void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent);
+#ifdef OPENSSL_RFC3779
+
+typedef struct ASRange_st {
+ ASN1_INTEGER *min, *max;
+} ASRange;
+
+#define ASIdOrRange_id 0
+#define ASIdOrRange_range 1
+
+typedef struct ASIdOrRange_st {
+ int type;
+ union {
+ ASN1_INTEGER *id;
+ ASRange *range;
+ } u;
+} ASIdOrRange;
+
+typedef STACK_OF(ASIdOrRange) ASIdOrRanges;
+DECLARE_STACK_OF(ASIdOrRange)
+
+#define ASIdentifierChoice_inherit 0
+#define ASIdentifierChoice_asIdsOrRanges 1
+
+typedef struct ASIdentifierChoice_st {
+ int type;
+ union {
+ ASN1_NULL *inherit;
+ ASIdOrRanges *asIdsOrRanges;
+ } u;
+} ASIdentifierChoice;
+
+typedef struct ASIdentifiers_st {
+ ASIdentifierChoice *asnum, *rdi;
+} ASIdentifiers;
+
+DECLARE_ASN1_FUNCTIONS(ASRange)
+DECLARE_ASN1_FUNCTIONS(ASIdOrRange)
+DECLARE_ASN1_FUNCTIONS(ASIdentifierChoice)
+DECLARE_ASN1_FUNCTIONS(ASIdentifiers)
+
+
+typedef struct IPAddressRange_st {
+ ASN1_BIT_STRING *min, *max;
+} IPAddressRange;
+
+#define IPAddressOrRange_addressPrefix 0
+#define IPAddressOrRange_addressRange 1
+
+typedef struct IPAddressOrRange_st {
+ int type;
+ union {
+ ASN1_BIT_STRING *addressPrefix;
+ IPAddressRange *addressRange;
+ } u;
+} IPAddressOrRange;
+
+typedef STACK_OF(IPAddressOrRange) IPAddressOrRanges;
+DECLARE_STACK_OF(IPAddressOrRange)
+
+#define IPAddressChoice_inherit 0
+#define IPAddressChoice_addressesOrRanges 1
+
+typedef struct IPAddressChoice_st {
+ int type;
+ union {
+ ASN1_NULL *inherit;
+ IPAddressOrRanges *addressesOrRanges;
+ } u;
+} IPAddressChoice;
+
+typedef struct IPAddressFamily_st {
+ ASN1_OCTET_STRING *addressFamily;
+ IPAddressChoice *ipAddressChoice;
+} IPAddressFamily;
+
+typedef STACK_OF(IPAddressFamily) IPAddrBlocks;
+DECLARE_STACK_OF(IPAddressFamily)
+
+DECLARE_ASN1_FUNCTIONS(IPAddressRange)
+DECLARE_ASN1_FUNCTIONS(IPAddressOrRange)
+DECLARE_ASN1_FUNCTIONS(IPAddressChoice)
+DECLARE_ASN1_FUNCTIONS(IPAddressFamily)
+
+/*
+ * API tag for elements of the ASIdentifer SEQUENCE.
+ */
+#define V3_ASID_ASNUM 0
+#define V3_ASID_RDI 1
+
+/*
+ * AFI values, assigned by IANA. It'd be nice to make the AFI
+ * handling code totally generic, but there are too many little things
+ * that would need to be defined for other address families for it to
+ * be worth the trouble.
+ */
+#define IANA_AFI_IPV4 1
+#define IANA_AFI_IPV6 2
+
+/*
+ * Utilities to construct and extract values from RFC3779 extensions,
+ * since some of the encodings (particularly for IP address prefixes
+ * and ranges) are a bit tedious to work with directly.
+ */
+int v3_asid_add_inherit(ASIdentifiers *asid, int which);
+int v3_asid_add_id_or_range(ASIdentifiers *asid, int which,
+ ASN1_INTEGER *min, ASN1_INTEGER *max);
+int v3_addr_add_inherit(IPAddrBlocks *addr,
+ const unsigned afi, const unsigned *safi);
+int v3_addr_add_prefix(IPAddrBlocks *addr,
+ const unsigned afi, const unsigned *safi,
+ unsigned char *a, const int prefixlen);
+int v3_addr_add_range(IPAddrBlocks *addr,
+ const unsigned afi, const unsigned *safi,
+ unsigned char *min, unsigned char *max);
+unsigned v3_addr_get_afi(const IPAddressFamily *f);
+int v3_addr_get_range(IPAddressOrRange *aor, const unsigned afi,
+ unsigned char *min, unsigned char *max,
+ const int length);
+
+/*
+ * Canonical forms.
+ */
+int v3_asid_is_canonical(ASIdentifiers *asid);
+int v3_addr_is_canonical(IPAddrBlocks *addr);
+int v3_asid_canonize(ASIdentifiers *asid);
+int v3_addr_canonize(IPAddrBlocks *addr);
+
+/*
+ * Tests for inheritance and containment.
+ */
+int v3_asid_inherits(ASIdentifiers *asid);
+int v3_addr_inherits(IPAddrBlocks *addr);
+int v3_asid_subset(ASIdentifiers *a, ASIdentifiers *b);
+int v3_addr_subset(IPAddrBlocks *a, IPAddrBlocks *b);
+
+/*
+ * Check whether RFC 3779 extensions nest properly in chains.
+ */
+int v3_asid_validate_path(X509_STORE_CTX *);
+int v3_addr_validate_path(X509_STORE_CTX *);
+int v3_asid_validate_resource_set(STACK_OF(X509) *chain,
+ ASIdentifiers *ext,
+ int allow_inheritance);
+int v3_addr_validate_resource_set(STACK_OF(X509) *chain,
+ IPAddrBlocks *ext,
+ int allow_inheritance);
+
+#endif /* OPENSSL_RFC3779 */
+
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
@@ -666,6 +816,8 @@
/* Error codes for the X509V3 functions. */
/* Function codes. */
+#define X509V3_F_ASIDENTIFIERCHOICE_CANONIZE 161
+#define X509V3_F_ASIDENTIFIERCHOICE_IS_CANONICAL 162
#define X509V3_F_COPY_EMAIL 122
#define X509V3_F_COPY_ISSUER 123
#define X509V3_F_DO_DIRNAME 144
@@ -697,6 +849,7 @@
#define X509V3_F_SXNET_ADD_ID_ULONG 127
#define X509V3_F_SXNET_GET_ID_ASC 128
#define X509V3_F_SXNET_GET_ID_ULONG 129
+#define X509V3_F_V2I_ASIDENTIFIERS 163
#define X509V3_F_V2I_ASN1_BIT_STRING 101
#define X509V3_F_V2I_AUTHORITY_INFO_ACCESS 139
#define X509V3_F_V2I_AUTHORITY_KEYID 119
@@ -706,11 +859,13 @@
#define X509V3_F_V2I_GENERAL_NAMES 118
#define X509V3_F_V2I_GENERAL_NAME_EX 117
#define X509V3_F_V2I_IDP 157
+#define X509V3_F_V2I_IPADDRBLOCKS 159
#define X509V3_F_V2I_ISSUER_ALT 153
#define X509V3_F_V2I_NAME_CONSTRAINTS 147
#define X509V3_F_V2I_POLICY_CONSTRAINTS 146
#define X509V3_F_V2I_POLICY_MAPPINGS 145
#define X509V3_F_V2I_SUBJECT_ALT 154
+#define X509V3_F_V3_ADDR_VALIDATE_PATH_INTERNAL 160
#define X509V3_F_V3_GENERIC_EXTENSION 116
#define X509V3_F_X509V3_ADD1_I2D 140
#define X509V3_F_X509V3_ADD_VALUE 105
@@ -747,8 +902,12 @@
#define X509V3_R_ILLEGAL_HEX_DIGIT 113
#define X509V3_R_INCORRECT_POLICY_SYNTAX_TAG 152
#define X509V3_R_INVAID_MULTIPLE_RDNS 161
+#define X509V3_R_INVALID_ASNUMBER 162
+#define X509V3_R_INVALID_ASRANGE 163
#define X509V3_R_INVALID_BOOLEAN_STRING 104
#define X509V3_R_INVALID_EXTENSION_STRING 105
+#define X509V3_R_INVALID_INHERITANCE 165
+#define X509V3_R_INVALID_IPADDRESS 166
#define X509V3_R_INVALID_NAME 106
#define X509V3_R_INVALID_NULL_ARGUMENT 107
#define X509V3_R_INVALID_NULL_NAME 108
@@ -760,6 +919,7 @@
#define X509V3_R_INVALID_POLICY_IDENTIFIER 134
#define X509V3_R_INVALID_PROXY_POLICY_SETTING 153
#define X509V3_R_INVALID_PURPOSE 146
+#define X509V3_R_INVALID_SAFI 164
#define X509V3_R_INVALID_SECTION 135
#define X509V3_R_INVALID_SYNTAX 143
#define X509V3_R_ISSUER_DECODE_ERROR 126
