Remove sxnet and pkey_usage_period extensions.

These aren't used within the verifier and no one ever extracts them.

Update-Note: Parsers for these two extensions are removed. Parsing the
types directly or passing NID_sxnet and NID_pkey_usage_period into
X509V3_get_d2i, or *_get_ext_d2i will no longer work.

Change-Id: I359e64466fd0c042eda45c41cbc0843ebb04df9f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/42585
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 26295d4..edb21cc 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -415,12 +415,10 @@
   x509v3/v3_pci.c
   x509v3/v3_pcia.c
   x509v3/v3_pcons.c
-  x509v3/v3_pku.c
   x509v3/v3_pmaps.c
   x509v3/v3_prn.c
   x509v3/v3_purp.c
   x509v3/v3_skey.c
-  x509v3/v3_sxnet.c
   x509v3/v3_utl.c
 
   $<TARGET_OBJECTS:fipsmodule>
diff --git a/crypto/x509v3/ext_dat.h b/crypto/x509v3/ext_dat.h
index a6ca45b..7930126 100644
--- a/crypto/x509v3/ext_dat.h
+++ b/crypto/x509v3/ext_dat.h
@@ -61,8 +61,7 @@
 #endif
 
 extern const X509V3_EXT_METHOD v3_bcons, v3_nscert, v3_key_usage, v3_ext_ku;
-extern const X509V3_EXT_METHOD v3_pkey_usage_period, v3_sxnet, v3_info,
-    v3_sinfo;
+extern const X509V3_EXT_METHOD v3_info, v3_sinfo;
 extern const X509V3_EXT_METHOD v3_ns_ia5_list[], v3_alt[], v3_skey_id,
     v3_akey_id;
 extern const X509V3_EXT_METHOD v3_crl_num, v3_crl_reason, v3_crl_invdate;
@@ -96,7 +95,6 @@
     &v3_ns_ia5_list[6],
     &v3_skey_id,
     &v3_key_usage,
-    &v3_pkey_usage_period,
     &v3_alt[0],
     &v3_alt[1],
     &v3_bcons,
@@ -108,7 +106,6 @@
     &v3_delta_crl,
     &v3_crl_reason,
     &v3_crl_invdate,
-    &v3_sxnet,
     &v3_info,
 #ifndef OPENSSL_NO_OCSP
     &v3_ocsp_nonce,
diff --git a/crypto/x509v3/v3_pku.c b/crypto/x509v3/v3_pku.c
deleted file mode 100644
index e4868b4..0000000
--- a/crypto/x509v3/v3_pku.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/* v3_pku.c */
-/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999 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). */
-
-#include <stdio.h>
-
-#include <openssl/asn1.h>
-#include <openssl/asn1t.h>
-#include <openssl/mem.h>
-#include <openssl/obj.h>
-#include <openssl/x509v3.h>
-
-static int i2r_PKEY_USAGE_PERIOD(X509V3_EXT_METHOD *method,
-                                 PKEY_USAGE_PERIOD *usage, BIO *out,
-                                 int indent);
-/*
- * static PKEY_USAGE_PERIOD *v2i_PKEY_USAGE_PERIOD(X509V3_EXT_METHOD *method,
- * X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
- */
-const X509V3_EXT_METHOD v3_pkey_usage_period = {
-    NID_private_key_usage_period, 0, ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
-    0, 0, 0, 0,
-    0, 0, 0, 0,
-    (X509V3_EXT_I2R)i2r_PKEY_USAGE_PERIOD, NULL,
-    NULL
-};
-
-ASN1_SEQUENCE(PKEY_USAGE_PERIOD) = {
-        ASN1_IMP_OPT(PKEY_USAGE_PERIOD, notBefore, ASN1_GENERALIZEDTIME, 0),
-        ASN1_IMP_OPT(PKEY_USAGE_PERIOD, notAfter, ASN1_GENERALIZEDTIME, 1)
-} ASN1_SEQUENCE_END(PKEY_USAGE_PERIOD)
-
-IMPLEMENT_ASN1_FUNCTIONS(PKEY_USAGE_PERIOD)
-
-static int i2r_PKEY_USAGE_PERIOD(X509V3_EXT_METHOD *method,
-                                 PKEY_USAGE_PERIOD *usage, BIO *out,
-                                 int indent)
-{
-    BIO_printf(out, "%*s", indent, "");
-    if (usage->notBefore) {
-        BIO_write(out, "Not Before: ", 12);
-        ASN1_GENERALIZEDTIME_print(out, usage->notBefore);
-        if (usage->notAfter)
-            BIO_write(out, ", ", 2);
-    }
-    if (usage->notAfter) {
-        BIO_write(out, "Not After: ", 11);
-        ASN1_GENERALIZEDTIME_print(out, usage->notAfter);
-    }
-    return 1;
-}
-
-/*
- * static PKEY_USAGE_PERIOD *v2i_PKEY_USAGE_PERIOD(method, ctx, values)
- * X509V3_EXT_METHOD *method; X509V3_CTX *ctx; STACK_OF(CONF_VALUE) *values;
- * { return NULL; }
- */
diff --git a/crypto/x509v3/v3_sxnet.c b/crypto/x509v3/v3_sxnet.c
deleted file mode 100644
index 51c5a67..0000000
--- a/crypto/x509v3/v3_sxnet.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/* v3_sxnet.c */
-/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999 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).
- *
- */
-
-#include <stdio.h>
-#include <string.h>
-
-#include <openssl/asn1.h>
-#include <openssl/asn1t.h>
-#include <openssl/conf.h>
-#include <openssl/err.h>
-#include <openssl/mem.h>
-#include <openssl/obj.h>
-#include <openssl/x509v3.h>
-
-/* Support for Thawte strong extranet extension */
-
-#define SXNET_TEST
-
-static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
-                     int indent);
-#ifdef SXNET_TEST
-static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
-                        STACK_OF(CONF_VALUE) *nval);
-#endif
-const X509V3_EXT_METHOD v3_sxnet = {
-    NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
-    0, 0, 0, 0,
-    0, 0,
-    0,
-#ifdef SXNET_TEST
-    (X509V3_EXT_V2I)sxnet_v2i,
-#else
-    0,
-#endif
-    (X509V3_EXT_I2R)sxnet_i2r,
-    0,
-    NULL
-};
-
-ASN1_SEQUENCE(SXNETID) = {
-        ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
-        ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
-} ASN1_SEQUENCE_END(SXNETID)
-
-IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
-
-ASN1_SEQUENCE(SXNET) = {
-        ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
-        ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
-} ASN1_SEQUENCE_END(SXNET)
-
-IMPLEMENT_ASN1_FUNCTIONS(SXNET)
-
-static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
-                     int indent)
-{
-    long v;
-    char *tmp;
-    SXNETID *id;
-    size_t i;
-    v = ASN1_INTEGER_get(sx->version);
-    BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
-    for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
-        id = sk_SXNETID_value(sx->ids, i);
-        tmp = i2s_ASN1_INTEGER(NULL, id->zone);
-        BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
-        OPENSSL_free(tmp);
-        M_ASN1_OCTET_STRING_print(out, id->user);
-    }
-    return 1;
-}
-
-#ifdef SXNET_TEST
-
-/*
- * NBB: this is used for testing only. It should *not* be used for anything
- * else because it will just take static IDs from the configuration file and
- * they should really be separate values for each user.
- */
-
-static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
-                        STACK_OF(CONF_VALUE) *nval)
-{
-    CONF_VALUE *cnf;
-    SXNET *sx = NULL;
-    size_t i;
-    for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
-        cnf = sk_CONF_VALUE_value(nval, i);
-        if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
-            return NULL;
-    }
-    return sx;
-}
-
-#endif
-
-/* Strong Extranet utility functions */
-
-/* Add an id given the zone as an ASCII number */
-
-int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen)
-{
-    ASN1_INTEGER *izone = NULL;
-    if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
-        OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
-        return 0;
-    }
-    return SXNET_add_id_INTEGER(psx, izone, user, userlen);
-}
-
-/* Add an id given the zone as an unsigned long */
-
-int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
-                       int userlen)
-{
-    ASN1_INTEGER *izone = NULL;
-    if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
-        OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
-        M_ASN1_INTEGER_free(izone);
-        return 0;
-    }
-    return SXNET_add_id_INTEGER(psx, izone, user, userlen);
-
-}
-
-/*
- * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
- * passed integer and doesn't make a copy so don't free it up afterwards.
- */
-
-int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
-                         int userlen)
-{
-    SXNET *sx = NULL;
-    SXNETID *id = NULL;
-    if (!psx || !zone || !user) {
-        OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NULL_ARGUMENT);
-        return 0;
-    }
-    if (userlen == -1)
-        userlen = strlen(user);
-    if (userlen > 64) {
-        OPENSSL_PUT_ERROR(X509V3, X509V3_R_USER_TOO_LONG);
-        return 0;
-    }
-    if (!*psx) {
-        if (!(sx = SXNET_new()))
-            goto err;
-        if (!ASN1_INTEGER_set(sx->version, 0))
-            goto err;
-        *psx = sx;
-    } else
-        sx = *psx;
-    if (SXNET_get_id_INTEGER(sx, zone)) {
-        OPENSSL_PUT_ERROR(X509V3, X509V3_R_DUPLICATE_ZONE_ID);
-        return 0;
-    }
-
-    if (!(id = SXNETID_new()))
-        goto err;
-    if (userlen == -1)
-        userlen = strlen(user);
-
-    if (!M_ASN1_OCTET_STRING_set(id->user, user, userlen))
-        goto err;
-    if (!sk_SXNETID_push(sx->ids, id))
-        goto err;
-    id->zone = zone;
-    return 1;
-
- err:
-    OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
-    SXNETID_free(id);
-    SXNET_free(sx);
-    *psx = NULL;
-    return 0;
-}
-
-ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
-{
-    ASN1_INTEGER *izone = NULL;
-    ASN1_OCTET_STRING *oct;
-    if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
-        OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
-        return NULL;
-    }
-    oct = SXNET_get_id_INTEGER(sx, izone);
-    M_ASN1_INTEGER_free(izone);
-    return oct;
-}
-
-ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
-{
-    ASN1_INTEGER *izone = NULL;
-    ASN1_OCTET_STRING *oct;
-    if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
-        OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
-        M_ASN1_INTEGER_free(izone);
-        return NULL;
-    }
-    oct = SXNET_get_id_INTEGER(sx, izone);
-    M_ASN1_INTEGER_free(izone);
-    return oct;
-}
-
-ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
-{
-    SXNETID *id;
-    size_t i;
-    for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
-        id = sk_SXNETID_value(sx->ids, i);
-        if (!M_ASN1_INTEGER_cmp(id->zone, zone))
-            return id->user;
-    }
-    return NULL;
-}
-
-IMPLEMENT_ASN1_SET_OF(SXNETID)
diff --git a/include/openssl/x509v3.h b/include/openssl/x509v3.h
index 6e64778..aff7c0b 100644
--- a/include/openssl/x509v3.h
+++ b/include/openssl/x509v3.h
@@ -162,11 +162,6 @@
 };
 
 
-typedef struct PKEY_USAGE_PERIOD_st {
-ASN1_GENERALIZEDTIME *notBefore;
-ASN1_GENERALIZEDTIME *notAfter;
-} PKEY_USAGE_PERIOD;
-
 typedef struct otherName_st {
 ASN1_OBJECT *type_id;
 ASN1_TYPE *value;
@@ -272,21 +267,6 @@
 ASN1_INTEGER *serial;
 };
 
-/* Strong extranet structures */
-
-typedef struct SXNET_ID_st {
-	ASN1_INTEGER *zone;
-	ASN1_OCTET_STRING *user;
-} SXNETID;
-
-DEFINE_STACK_OF(SXNETID)
-DECLARE_ASN1_SET_OF(SXNETID)
-
-typedef struct SXNET_st {
-	ASN1_INTEGER *version;
-	STACK_OF(SXNETID) *ids;
-} SXNET;
-
 typedef struct NOTICEREF_st {
 	ASN1_STRING *organization;
 	STACK_OF(ASN1_INTEGER) *noticenos;
@@ -517,21 +497,8 @@
 
 DECLARE_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)
 
-DECLARE_ASN1_FUNCTIONS(SXNET)
-DECLARE_ASN1_FUNCTIONS(SXNETID)
-
-int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen); 
-int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user, int userlen); 
-int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *izone, char *user, int userlen); 
-
-ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone);
-ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone);
-ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone);
-
 DECLARE_ASN1_FUNCTIONS(AUTHORITY_KEYID)
 
-DECLARE_ASN1_FUNCTIONS(PKEY_USAGE_PERIOD)
-
 DECLARE_ASN1_FUNCTIONS(GENERAL_NAME)
 OPENSSL_EXPORT GENERAL_NAME *GENERAL_NAME_dup(GENERAL_NAME *a);
 OPENSSL_EXPORT int GENERAL_NAME_cmp(GENERAL_NAME *a, GENERAL_NAME *b);