[thirdparty/openssl.git] / crypto / x509 / v3_pci.c

/*
 * Copyright 2004-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * This file is dual-licensed and is also available under the following
 * terms:
 *
 * Copyright (c) 2004 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * 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. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS 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 INSTITUTE OR 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.
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/conf.h>
#include <openssl/x509v3.h>
#include "ext_dat.h"

static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *ext,
                   BIO *out, int indent);
static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
                                          X509V3_CTX *ctx, char *str);

const X509V3_EXT_METHOD ossl_v3_pci =
    { NID_proxyCertInfo, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
    0, 0, 0, 0,
    0, 0,
    NULL, NULL,
    (X509V3_EXT_I2R)i2r_pci,
    (X509V3_EXT_R2I)r2i_pci,
    NULL,
};

static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *pci,
                   BIO *out, int indent)
{
    BIO_printf(out, "%*sPath Length Constraint: ", indent, "");
    if (pci->pcPathLengthConstraint)
        i2a_ASN1_INTEGER(out, pci->pcPathLengthConstraint);
    else
        BIO_printf(out, "infinite");
    BIO_puts(out, "\n");
    BIO_printf(out, "%*sPolicy Language: ", indent, "");
    i2a_ASN1_OBJECT(out, pci->proxyPolicy->policyLanguage);
    if (pci->proxyPolicy->policy && pci->proxyPolicy->policy->data)
        BIO_printf(out, "\n%*sPolicy Text: %s", indent, "",
                   pci->proxyPolicy->policy->data);
    return 1;
}

static int process_pci_value(CONF_VALUE *val,
                             ASN1_OBJECT **language, ASN1_INTEGER **pathlen,
                             ASN1_OCTET_STRING **policy)
{
    int free_policy = 0;

    if (strcmp(val->name, "language") == 0) {
        if (*language) {
            ERR_raise(ERR_LIB_X509V3, X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED);
            X509V3_conf_err(val);
            return 0;
        }
        if ((*language = OBJ_txt2obj(val->value, 0)) == NULL) {
            ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
            X509V3_conf_err(val);
            return 0;
        }
    } else if (strcmp(val->name, "pathlen") == 0) {
        if (*pathlen) {
            ERR_raise(ERR_LIB_X509V3,
                      X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED);
            X509V3_conf_err(val);
            return 0;
        }
        if (!X509V3_get_value_int(val, pathlen)) {
            ERR_raise(ERR_LIB_X509V3, X509V3_R_POLICY_PATH_LENGTH);
            X509V3_conf_err(val);
            return 0;
        }
    } else if (strcmp(val->name, "policy") == 0) {
        unsigned char *tmp_data = NULL;
        long val_len;

        if (*policy == NULL) {
            *policy = ASN1_OCTET_STRING_new();
            if (*policy == NULL) {
                ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
                X509V3_conf_err(val);
                return 0;
            }
            free_policy = 1;
        }
        if (strncmp(val->value, "hex:", 4) == 0) {
            unsigned char *tmp_data2 =
                OPENSSL_hexstr2buf(val->value + 4, &val_len);

            if (!tmp_data2) {
                X509V3_conf_err(val);
                goto err;
            }

            tmp_data = OPENSSL_realloc((*policy)->data,
                                       (*policy)->length + val_len + 1);
            if (tmp_data) {
                (*policy)->data = tmp_data;
                memcpy(&(*policy)->data[(*policy)->length],
                       tmp_data2, val_len);
                (*policy)->length += val_len;
                (*policy)->data[(*policy)->length] = '\0';
            } else {
                OPENSSL_free(tmp_data2);
                /*
                 * realloc failure implies the original data space is b0rked
                 * too!
                 */
                OPENSSL_free((*policy)->data);
                (*policy)->data = NULL;
                (*policy)->length = 0;
                ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
                X509V3_conf_err(val);
                goto err;
            }
            OPENSSL_free(tmp_data2);
        } else if (strncmp(val->value, "file:", 5) == 0) {
            unsigned char buf[2048];
            int n;
            BIO *b = BIO_new_file(val->value + 5, "r");
            if (!b) {
                ERR_raise(ERR_LIB_X509V3, ERR_R_BIO_LIB);
                X509V3_conf_err(val);
                goto err;
            }
            while ((n = BIO_read(b, buf, sizeof(buf))) > 0
                   || (n == 0 && BIO_should_retry(b))) {
                if (!n)
                    continue;

                tmp_data = OPENSSL_realloc((*policy)->data,
                                           (*policy)->length + n + 1);

                if (!tmp_data) {
                    OPENSSL_free((*policy)->data);
                    (*policy)->data = NULL;
                    (*policy)->length = 0;
                    ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
                    X509V3_conf_err(val);
                    BIO_free_all(b);
                    goto err;
                }

                (*policy)->data = tmp_data;
                memcpy(&(*policy)->data[(*policy)->length], buf, n);
                (*policy)->length += n;
                (*policy)->data[(*policy)->length] = '\0';
            }
            BIO_free_all(b);

            if (n < 0) {
                ERR_raise(ERR_LIB_X509V3, ERR_R_BIO_LIB);
                X509V3_conf_err(val);
                goto err;
            }
        } else if (strncmp(val->value, "text:", 5) == 0) {
            val_len = strlen(val->value + 5);
            tmp_data = OPENSSL_realloc((*policy)->data,
                                       (*policy)->length + val_len + 1);
            if (tmp_data) {
                (*policy)->data = tmp_data;
                memcpy(&(*policy)->data[(*policy)->length],
                       val->value + 5, val_len);
                (*policy)->length += val_len;
                (*policy)->data[(*policy)->length] = '\0';
            } else {
                /*
                 * realloc failure implies the original data space is b0rked
                 * too!
                 */
                OPENSSL_free((*policy)->data);
                (*policy)->data = NULL;
                (*policy)->length = 0;
                ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
                X509V3_conf_err(val);
                goto err;
            }
        } else {
            ERR_raise(ERR_LIB_X509V3, X509V3_R_INCORRECT_POLICY_SYNTAX_TAG);
            X509V3_conf_err(val);
            goto err;
        }
        if (!tmp_data) {
            ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
            X509V3_conf_err(val);
            goto err;
        }
    }
    return 1;
 err:
    if (free_policy) {
        ASN1_OCTET_STRING_free(*policy);
        *policy = NULL;
    }
    return 0;
}

static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
                                          X509V3_CTX *ctx, char *value)
{
    PROXY_CERT_INFO_EXTENSION *pci = NULL;
    STACK_OF(CONF_VALUE) *vals;
    ASN1_OBJECT *language = NULL;
    ASN1_INTEGER *pathlen = NULL;
    ASN1_OCTET_STRING *policy = NULL;
    int i, j;

    vals = X509V3_parse_list(value);
    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
        CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);

        if (!cnf->name || (*cnf->name != '@' && !cnf->value)) {
            ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_PROXY_POLICY_SETTING);
            X509V3_conf_err(cnf);
            goto err;
        }
        if (*cnf->name == '@') {
            STACK_OF(CONF_VALUE) *sect;
            int success_p = 1;

            sect = X509V3_get_section(ctx, cnf->name + 1);
            if (!sect) {
                ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_SECTION);
                X509V3_conf_err(cnf);
                goto err;
            }
            for (j = 0; success_p && j < sk_CONF_VALUE_num(sect); j++) {
                success_p =
                    process_pci_value(sk_CONF_VALUE_value(sect, j),
                                      &language, &pathlen, &policy);
            }
            X509V3_section_free(ctx, sect);
            if (!success_p)
                goto err;
        } else {
            if (!process_pci_value(cnf, &language, &pathlen, &policy)) {
                X509V3_conf_err(cnf);
                goto err;
            }
        }
    }

    /* Language is mandatory */
    if (!language) {
        ERR_raise(ERR_LIB_X509V3,
                  X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED);
        goto err;
    }
    i = OBJ_obj2nid(language);
    if ((i == NID_Independent || i == NID_id_ppl_inheritAll) && policy) {
        ERR_raise(ERR_LIB_X509V3,
                  X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY);
        goto err;
    }

    pci = PROXY_CERT_INFO_EXTENSION_new();
    if (pci == NULL) {
        ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    pci->proxyPolicy->policyLanguage = language;
    language = NULL;
    pci->proxyPolicy->policy = policy;
    policy = NULL;
    pci->pcPathLengthConstraint = pathlen;
    pathlen = NULL;
    goto end;
 err:
    ASN1_OBJECT_free(language);
    ASN1_INTEGER_free(pathlen);
    pathlen = NULL;
    ASN1_OCTET_STRING_free(policy);
    policy = NULL;
    PROXY_CERT_INFO_EXTENSION_free(pci);
    pci = NULL;
 end:
    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
    return pci;
}
Commit	Line	Data
0f113f3e	1	/*
3c2bdd7d	2	* Copyright 2004-2021 The OpenSSL Project Authors. All Rights Reserved.
d2e9e320	3	*
4286ca47	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
d2e9e320 RS	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
6951c23a	8	*/
d2e9e320	9
0c3d0d4a RS	10	/*
	11	* This file is dual-licensed and is also available under the following
	12	* terms:
	13	*
	14	* Copyright (c) 2004 Kungliga Tekniska Högskolan
6951c23a RL	15	* (Royal Institute of Technology, Stockholm, Sweden).
	16	* All rights reserved.
	17	*
	18	* Redistribution and use in source and binary forms, with or without
	19	* modification, are permitted provided that the following conditions
	20	* are met:
	21	*
	22	* 1. Redistributions of source code must retain the above copyright
	23	* notice, this list of conditions and the following disclaimer.
	24	*
	25	* 2. Redistributions in binary form must reproduce the above copyright
	26	* notice, this list of conditions and the following disclaimer in the
	27	* documentation and/or other materials provided with the distribution.
	28	*
	29	* 3. Neither the name of the Institute nor the names of its contributors
	30	* may be used to endorse or promote products derived from this software
	31	* without specific prior written permission.
	32	*
	33	* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
	34	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	35	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	36	* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
	37	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	38	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	39	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	40	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	41	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	42	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	43	* SUCH DAMAGE.
	44	*/
	45
	46	#include <stdio.h>
b39fc560	47	#include "internal/cryptlib.h"
6951c23a RL	48	#include <openssl/conf.h>
6951c23a RL	49	#include <openssl/x509v3.h>
df2ee0e2	50	#include "ext_dat.h"
6951c23a RL	51
6951c23a RL	52	static int i2r_pci(X509V3_EXT_METHOD method, PROXY_CERT_INFO_EXTENSION ext,
0f113f3e	53	BIO *out, int indent);
6951c23a	54	static PROXY_CERT_INFO_EXTENSION r2i_pci(X509V3_EXT_METHOD method,
0f113f3e	55	X509V3_CTX ctx, char str);
6951c23a	56
47864aea	57	const X509V3_EXT_METHOD ossl_v3_pci =
0f113f3e MC	58	{ NID_proxyCertInfo, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
	59	0, 0, 0, 0,
	60	0, 0,
	61	NULL, NULL,
	62	(X509V3_EXT_I2R)i2r_pci,
	63	(X509V3_EXT_R2I)r2i_pci,
	64	NULL,
	65	};
6951c23a RL	66
6951c23a RL	67	static int i2r_pci(X509V3_EXT_METHOD method, PROXY_CERT_INFO_EXTENSION pci,
0f113f3e MC	68	BIO *out, int indent)
	69	{
	70	BIO_printf(out, "%*sPath Length Constraint: ", indent, "");
	71	if (pci->pcPathLengthConstraint)
	72	i2a_ASN1_INTEGER(out, pci->pcPathLengthConstraint);
	73	else
	74	BIO_printf(out, "infinite");
	75	BIO_puts(out, "\n");
	76	BIO_printf(out, "%*sPolicy Language: ", indent, "");
	77	i2a_ASN1_OBJECT(out, pci->proxyPolicy->policyLanguage);
0f113f3e	78	if (pci->proxyPolicy->policy && pci->proxyPolicy->policy->data)
a4c467c9	79	BIO_printf(out, "\n%*sPolicy Text: %s", indent, "",
0f113f3e MC	80	pci->proxyPolicy->policy->data);
	81	return 1;
	82	}
6951c23a RL	83
6951c23a RL	84	static int process_pci_value(CONF_VALUE *val,
0f113f3e MC	85	ASN1_OBJECT language, ASN1_INTEGER pathlen,
	86	ASN1_OCTET_STRING **policy)
	87	{
	88	int free_policy = 0;
6951c23a	89
0f113f3e MC	90	if (strcmp(val->name, "language") == 0) {
0f113f3e MC	91	if (*language) {
9311d0c4	92	ERR_raise(ERR_LIB_X509V3, X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED);
0f113f3e MC	93	X509V3_conf_err(val);
	94	return 0;
	95	}
75ebbd9a	96	if ((*language = OBJ_txt2obj(val->value, 0)) == NULL) {
9311d0c4	97	ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
0f113f3e MC	98	X509V3_conf_err(val);
	99	return 0;
	100	}
	101	} else if (strcmp(val->name, "pathlen") == 0) {
	102	if (*pathlen) {
9311d0c4	103	ERR_raise(ERR_LIB_X509V3,
0f113f3e MC	104	X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED);
	105	X509V3_conf_err(val);
	106	return 0;
	107	}
	108	if (!X509V3_get_value_int(val, pathlen)) {
9311d0c4	109	ERR_raise(ERR_LIB_X509V3, X509V3_R_POLICY_PATH_LENGTH);
0f113f3e MC	110	X509V3_conf_err(val);
	111	return 0;
	112	}
	113	} else if (strcmp(val->name, "policy") == 0) {
	114	unsigned char *tmp_data = NULL;
	115	long val_len;
12a765a5 RS	116
12a765a5 RS	117	if (*policy == NULL) {
0f113f3e	118	*policy = ASN1_OCTET_STRING_new();
90945fa3	119	if (*policy == NULL) {
9311d0c4	120	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	121	X509V3_conf_err(val);
	122	return 0;
	123	}
	124	free_policy = 1;
	125	}
	126	if (strncmp(val->value, "hex:", 4) == 0) {
	127	unsigned char *tmp_data2 =
14f051a0	128	OPENSSL_hexstr2buf(val->value + 4, &val_len);
6951c23a	129
0f113f3e	130	if (!tmp_data2) {
0f113f3e MC	131	X509V3_conf_err(val);
	132	goto err;
	133	}
6951c23a	134
0f113f3e MC	135	tmp_data = OPENSSL_realloc((*policy)->data,
	136	(*policy)->length + val_len + 1);
	137	if (tmp_data) {
	138	(*policy)->data = tmp_data;
	139	memcpy(&(policy)->data[(policy)->length],
	140	tmp_data2, val_len);
	141	(*policy)->length += val_len;
	142	(policy)->data[(policy)->length] = '\0';
	143	} else {
	144	OPENSSL_free(tmp_data2);
	145	/*
	146	* realloc failure implies the original data space is b0rked
	147	* too!
	148	*/
	149	OPENSSL_free((*policy)->data);
	150	(*policy)->data = NULL;
	151	(*policy)->length = 0;
9311d0c4	152	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	153	X509V3_conf_err(val);
	154	goto err;
	155	}
	156	OPENSSL_free(tmp_data2);
	157	} else if (strncmp(val->value, "file:", 5) == 0) {
	158	unsigned char buf[2048];
	159	int n;
	160	BIO *b = BIO_new_file(val->value + 5, "r");
	161	if (!b) {
9311d0c4	162	ERR_raise(ERR_LIB_X509V3, ERR_R_BIO_LIB);
0f113f3e MC	163	X509V3_conf_err(val);
	164	goto err;
	165	}
	166	while ((n = BIO_read(b, buf, sizeof(buf))) > 0
	167	\|\| (n == 0 && BIO_should_retry(b))) {
	168	if (!n)
	169	continue;
6951c23a	170
0f113f3e MC	171	tmp_data = OPENSSL_realloc((*policy)->data,
0f113f3e MC	172	(*policy)->length + n + 1);
6951c23a	173
0f113f3e MC	174	if (!tmp_data) {
	175	OPENSSL_free((*policy)->data);
	176	(*policy)->data = NULL;
	177	(*policy)->length = 0;
9311d0c4	178	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	179	X509V3_conf_err(val);
	180	BIO_free_all(b);
	181	goto err;
	182	}
6951c23a	183
0f113f3e MC	184	(*policy)->data = tmp_data;
	185	memcpy(&(policy)->data[(policy)->length], buf, n);
	186	(*policy)->length += n;
	187	(policy)->data[(policy)->length] = '\0';
	188	}
	189	BIO_free_all(b);
6951c23a	190
0f113f3e	191	if (n < 0) {
9311d0c4	192	ERR_raise(ERR_LIB_X509V3, ERR_R_BIO_LIB);
0f113f3e MC	193	X509V3_conf_err(val);
	194	goto err;
	195	}
	196	} else if (strncmp(val->value, "text:", 5) == 0) {
	197	val_len = strlen(val->value + 5);
	198	tmp_data = OPENSSL_realloc((*policy)->data,
	199	(*policy)->length + val_len + 1);
	200	if (tmp_data) {
	201	(*policy)->data = tmp_data;
	202	memcpy(&(policy)->data[(policy)->length],
	203	val->value + 5, val_len);
	204	(*policy)->length += val_len;
	205	(policy)->data[(policy)->length] = '\0';
	206	} else {
	207	/*
	208	* realloc failure implies the original data space is b0rked
	209	* too!
	210	*/
	211	OPENSSL_free((*policy)->data);
	212	(*policy)->data = NULL;
	213	(*policy)->length = 0;
9311d0c4	214	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	215	X509V3_conf_err(val);
	216	goto err;
	217	}
	218	} else {
9311d0c4	219	ERR_raise(ERR_LIB_X509V3, X509V3_R_INCORRECT_POLICY_SYNTAX_TAG);
0f113f3e MC	220	X509V3_conf_err(val);
	221	goto err;
	222	}
	223	if (!tmp_data) {
9311d0c4	224	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	225	X509V3_conf_err(val);
	226	goto err;
	227	}
	228	}
	229	return 1;
	230	err:
	231	if (free_policy) {
	232	ASN1_OCTET_STRING_free(*policy);
	233	*policy = NULL;
	234	}
	235	return 0;
	236	}
6951c23a RL	237
6951c23a RL	238	static PROXY_CERT_INFO_EXTENSION r2i_pci(X509V3_EXT_METHOD method,
0f113f3e MC	239	X509V3_CTX ctx, char value)
	240	{
	241	PROXY_CERT_INFO_EXTENSION *pci = NULL;
	242	STACK_OF(CONF_VALUE) *vals;
	243	ASN1_OBJECT *language = NULL;
	244	ASN1_INTEGER *pathlen = NULL;
	245	ASN1_OCTET_STRING *policy = NULL;
	246	int i, j;
6951c23a	247
0f113f3e MC	248	vals = X509V3_parse_list(value);
	249	for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
	250	CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);
c90c4693	251
0f113f3e	252	if (!cnf->name \|\| (*cnf->name != '@' && !cnf->value)) {
9311d0c4	253	ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_PROXY_POLICY_SETTING);
0f113f3e MC	254	X509V3_conf_err(cnf);
	255	goto err;
	256	}
	257	if (*cnf->name == '@') {
	258	STACK_OF(CONF_VALUE) *sect;
	259	int success_p = 1;
6951c23a	260
0f113f3e MC	261	sect = X509V3_get_section(ctx, cnf->name + 1);
0f113f3e MC	262	if (!sect) {
9311d0c4	263	ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_SECTION);
0f113f3e MC	264	X509V3_conf_err(cnf);
	265	goto err;
	266	}
	267	for (j = 0; success_p && j < sk_CONF_VALUE_num(sect); j++) {
	268	success_p =
	269	process_pci_value(sk_CONF_VALUE_value(sect, j),
	270	&language, &pathlen, &policy);
	271	}
	272	X509V3_section_free(ctx, sect);
	273	if (!success_p)
	274	goto err;
	275	} else {
	276	if (!process_pci_value(cnf, &language, &pathlen, &policy)) {
	277	X509V3_conf_err(cnf);
	278	goto err;
	279	}
	280	}
	281	}
6951c23a	282
0f113f3e MC	283	/* Language is mandatory */
0f113f3e MC	284	if (!language) {
9311d0c4	285	ERR_raise(ERR_LIB_X509V3,
0f113f3e MC	286	X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED);
	287	goto err;
	288	}
	289	i = OBJ_obj2nid(language);
	290	if ((i == NID_Independent \|\| i == NID_id_ppl_inheritAll) && policy) {
9311d0c4	291	ERR_raise(ERR_LIB_X509V3,
0f113f3e MC	292	X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY);
	293	goto err;
	294	}
6951c23a	295
0f113f3e	296	pci = PROXY_CERT_INFO_EXTENSION_new();
90945fa3	297	if (pci == NULL) {
9311d0c4	298	ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
0f113f3e MC	299	goto err;
0f113f3e MC	300	}
6951c23a	301
0f113f3e MC	302	pci->proxyPolicy->policyLanguage = language;
	303	language = NULL;
	304	pci->proxyPolicy->policy = policy;
	305	policy = NULL;
	306	pci->pcPathLengthConstraint = pathlen;
	307	pathlen = NULL;
	308	goto end;
	309	err:
0dfb9398	310	ASN1_OBJECT_free(language);
2ace7450 RS	311	ASN1_INTEGER_free(pathlen);
	312	pathlen = NULL;
	313	ASN1_OCTET_STRING_free(policy);
	314	policy = NULL;
	315	PROXY_CERT_INFO_EXTENSION_free(pci);
	316	pci = NULL;
0f113f3e MC	317	end:
	318	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
	319	return pci;
	320	}