/src/openssl30/crypto/x509/x509_vpm.c

Source
/*
 * Copyright 2004-2025 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
 */

#include <stdio.h>

#include "internal/cryptlib.h"
#include <openssl/crypto.h>
#include <openssl/buffer.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "crypto/x509.h"

#include "x509_local.h"

/* X509_VERIFY_PARAM functions */

#define SET_HOST 0
#define ADD_HOST 1

static char *str_copy(const char *s)
{
    return OPENSSL_strdup(s);
}

static void str_free(char *s)
{
    OPENSSL_free(s);
}

static int int_x509_param_set_hosts(X509_VERIFY_PARAM *vpm, int mode,
    const char *name, size_t namelen)
{
    char *copy;

    /*
     * Refuse names with embedded NUL bytes, except perhaps as final byte.
     * XXX: Do we need to push an error onto the error stack?
     */
    if (namelen == 0 || name == NULL)
        namelen = name ? strlen(name) : 0;
    else if (name != NULL
        && memchr(name, '\0', namelen > 1 ? namelen - 1 : namelen) != NULL)
        return 0;
    if (namelen > 0 && name[namelen - 1] == '\0')
        --namelen;

    if (mode == SET_HOST) {
        sk_OPENSSL_STRING_pop_free(vpm->hosts, str_free);
        vpm->hosts = NULL;
    }
    if (name == NULL || namelen == 0)
        return 1;

    copy = OPENSSL_strndup(name, namelen);
    if (copy == NULL)
        return 0;

    if (vpm->hosts == NULL && (vpm->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
        OPENSSL_free(copy);
        return 0;
    }

    if (!sk_OPENSSL_STRING_push(vpm->hosts, copy)) {
        OPENSSL_free(copy);
        if (sk_OPENSSL_STRING_num(vpm->hosts) == 0) {
            sk_OPENSSL_STRING_free(vpm->hosts);
            vpm->hosts = NULL;
        }
        return 0;
    }

    return 1;
}

X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
{
    X509_VERIFY_PARAM *param;

    param = OPENSSL_zalloc(sizeof(*param));
    if (param == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
        return NULL;
    }
    param->trust = X509_TRUST_DEFAULT;
    /* param->inh_flags = X509_VP_FLAG_DEFAULT; */
    param->depth = -1;
    param->auth_level = -1; /* -1 means unset, 0 is explicit */
    return param;
}

void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
{
    if (param == NULL)
        return;
    sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
    sk_OPENSSL_STRING_pop_free(param->hosts, str_free);
    OPENSSL_free(param->peername);
    OPENSSL_free(param->email);
    OPENSSL_free(param->ip);
    OPENSSL_free(param);
}

/*-
 * This function determines how parameters are "inherited" from one structure
 * to another. There are several different ways this can happen.
 *
 * 1. If a child structure needs to have its values initialized from a parent
 *    they are simply copied across. For example SSL_CTX copied to SSL.
 * 2. If the structure should take on values only if they are currently unset.
 *    For example the values in an SSL structure will take appropriate value
 *    for SSL servers or clients but only if the application has not set new
 *    ones.
 *
 * The "inh_flags" field determines how this function behaves.
 *
 * Normally any values which are set in the default are not copied from the
 * destination and verify flags are ORed together.
 *
 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
 * to the destination. Effectively the values in "to" become default values
 * which will be used only if nothing new is set in "from".
 *
 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
 * they are set or not. Flags is still Ored though.
 *
 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
 * of ORed.
 *
 * If X509_VP_FLAG_LOCKED is set then no values are copied.
 *
 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
 * after the next call.
 */

/* Macro to test if a field should be copied from src to dest */

#define test_x509_verify_param_copy(field, def) \
    (to_overwrite || (src->field != def && (to_default || dest->field == def)))

/* Macro to test and copy a field if necessary */

#define x509_verify_param_copy(field, def)       \
    if (test_x509_verify_param_copy(field, def)) \
        dest->field = src->field;

int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
    const X509_VERIFY_PARAM *src)
{
    unsigned long inh_flags;
    int to_default, to_overwrite;

    if (src == NULL)
        return 1;
    inh_flags = dest->inh_flags | src->inh_flags;

    if ((inh_flags & X509_VP_FLAG_ONCE) != 0)
        dest->inh_flags = 0;

    if ((inh_flags & X509_VP_FLAG_LOCKED) != 0)
        return 1;

    to_default = (inh_flags & X509_VP_FLAG_DEFAULT) != 0;
    to_overwrite = (inh_flags & X509_VP_FLAG_OVERWRITE) != 0;

    x509_verify_param_copy(purpose, 0);
    x509_verify_param_copy(trust, X509_TRUST_DEFAULT);
    x509_verify_param_copy(depth, -1);
    x509_verify_param_copy(auth_level, -1);

    /* If overwrite or check time not set, copy across */

    if (to_overwrite || (dest->flags & X509_V_FLAG_USE_CHECK_TIME) == 0) {
        dest->check_time = src->check_time;
        dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
        /* Don't need to copy flag: that is done below */
    }

    if ((inh_flags & X509_VP_FLAG_RESET_FLAGS) != 0)
        dest->flags = 0;

    dest->flags |= src->flags;

    if (test_x509_verify_param_copy(policies, NULL)) {
        if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
            return 0;
    }

    x509_verify_param_copy(hostflags, 0);

    if (test_x509_verify_param_copy(hosts, NULL)) {
        sk_OPENSSL_STRING_pop_free(dest->hosts, str_free);
        dest->hosts = NULL;
        if (src->hosts != NULL) {
            dest->hosts = sk_OPENSSL_STRING_deep_copy(src->hosts, str_copy, str_free);
            if (dest->hosts == NULL)
                return 0;
        }
    }

    if (test_x509_verify_param_copy(email, NULL)) {
        if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen))
            return 0;
    }

    if (test_x509_verify_param_copy(ip, NULL)) {
        if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen))
            return 0;
    }

    return 1;
}

int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
    const X509_VERIFY_PARAM *from)
{
    unsigned long save_flags;
    int ret;

    if (to == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return 0;
    }
    save_flags = to->inh_flags;
    to->inh_flags |= X509_VP_FLAG_DEFAULT;
    ret = X509_VERIFY_PARAM_inherit(to, from);
    to->inh_flags = save_flags;
    return ret;
}

static int int_x509_param_set1(char **pdest, size_t *pdestlen,
    const char *src, size_t srclen)
{
    char *tmp;

    if (src != NULL) {
        if (srclen == 0)
            srclen = strlen(src);

        tmp = OPENSSL_malloc(srclen + 1);
        if (tmp == NULL)
            return 0;
        memcpy(tmp, src, srclen);
        tmp[srclen] = '\0'; /* enforce NUL termination */
    } else {
        tmp = NULL;
        srclen = 0;
    }
    OPENSSL_free(*pdest);
    *pdest = tmp;
    if (pdestlen != NULL)
        *pdestlen = srclen;
    return 1;
}

int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
{
    OPENSSL_free(param->name);
    param->name = OPENSSL_strdup(name);
    return param->name != NULL;
}

int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
{
    param->flags |= flags;
    if ((flags & X509_V_FLAG_POLICY_MASK) != 0)
        param->flags |= X509_V_FLAG_POLICY_CHECK;
    return 1;
}

int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
    unsigned long flags)
{
    param->flags &= ~flags;
    return 1;
}

unsigned long X509_VERIFY_PARAM_get_flags(const X509_VERIFY_PARAM *param)
{
    return param->flags;
}

uint32_t X509_VERIFY_PARAM_get_inh_flags(const X509_VERIFY_PARAM *param)
{
    return param->inh_flags;
}

int X509_VERIFY_PARAM_set_inh_flags(X509_VERIFY_PARAM *param, uint32_t flags)
{
    param->inh_flags = flags;
    return 1;
}

int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
{
    return X509_PURPOSE_set(&param->purpose, purpose);
}

int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
{
    return X509_TRUST_set(&param->trust, trust);
}

void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
{
    param->depth = depth;
}

void X509_VERIFY_PARAM_set_auth_level(X509_VERIFY_PARAM *param, int auth_level)
{
    param->auth_level = auth_level;
}

time_t X509_VERIFY_PARAM_get_time(const X509_VERIFY_PARAM *param)
{
    return param->check_time;
}

void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
{
    param->check_time = t;
    param->flags |= X509_V_FLAG_USE_CHECK_TIME;
}

int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
    ASN1_OBJECT *policy)
{
    if (param->policies == NULL) {
        param->policies = sk_ASN1_OBJECT_new_null();
        if (param->policies == NULL)
            return 0;
    }

    if (sk_ASN1_OBJECT_push(param->policies, policy) <= 0)
        return 0;
    return 1;
}

int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
    STACK_OF(ASN1_OBJECT) *policies)
{
    int i;
    ASN1_OBJECT *oid, *doid;

    if (param == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return 0;
    }
    sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);

    if (policies == NULL) {
        param->policies = NULL;
        return 1;
    }

    param->policies = sk_ASN1_OBJECT_new_null();
    if (param->policies == NULL)
        return 0;

    for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) {
        oid = sk_ASN1_OBJECT_value(policies, i);
        doid = OBJ_dup(oid);
        if (doid == NULL)
            return 0;
        if (!sk_ASN1_OBJECT_push(param->policies, doid)) {
            ASN1_OBJECT_free(doid);
            return 0;
        }
    }
    param->flags |= X509_V_FLAG_POLICY_CHECK;
    return 1;
}

char *X509_VERIFY_PARAM_get0_host(X509_VERIFY_PARAM *param, int idx)
{
    return sk_OPENSSL_STRING_value(param->hosts, idx);
}

int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
    const char *name, size_t namelen)
{
    return int_x509_param_set_hosts(param, SET_HOST, name, namelen);
}

int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM *param,
    const char *name, size_t namelen)
{
    return int_x509_param_set_hosts(param, ADD_HOST, name, namelen);
}

void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
    unsigned int flags)
{
    param->hostflags = flags;
}

unsigned int X509_VERIFY_PARAM_get_hostflags(const X509_VERIFY_PARAM *param)
{
    return param->hostflags;
}

char *X509_VERIFY_PARAM_get0_peername(const X509_VERIFY_PARAM *param)
{
    return param->peername;
}

/*
 * Move peername from one param structure to another, freeing any name present
 * at the target.  If the source is a NULL parameter structure, free and zero
 * the target peername.
 */
void X509_VERIFY_PARAM_move_peername(X509_VERIFY_PARAM *to,
    X509_VERIFY_PARAM *from)
{
    char *peername = (from != NULL) ? from->peername : NULL;

    if (to->peername != peername) {
        OPENSSL_free(to->peername);
        to->peername = peername;
    }
    if (from != NULL)
        from->peername = NULL;
}

char *X509_VERIFY_PARAM_get0_email(X509_VERIFY_PARAM *param)
{
    return param->email;
}

int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
    const char *email, size_t emaillen)
{
    return int_x509_param_set1(&param->email, &param->emaillen,
        email, emaillen);
}

static unsigned char *int_X509_VERIFY_PARAM_get0_ip(X509_VERIFY_PARAM *param, size_t *plen)
{
    if (param == NULL || param->ip == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (plen != NULL)
        *plen = param->iplen;
    return param->ip;
}

char *X509_VERIFY_PARAM_get1_ip_asc(X509_VERIFY_PARAM *param)
{
    size_t iplen;
    unsigned char *ip = int_X509_VERIFY_PARAM_get0_ip(param, &iplen);

    return ip == NULL ? NULL : ossl_ipaddr_to_asc(ip, iplen);
}

int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
    const unsigned char *ip, size_t iplen)
{
    if (iplen != 0 && iplen != 4 && iplen != 16) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
        return 0;
    }
    return int_x509_param_set1((char **)&param->ip, &param->iplen,
        (char *)ip, iplen);
}

int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc)
{
    unsigned char ipout[16];
    size_t iplen = (size_t)ossl_a2i_ipadd(ipout, ipasc);

    if (iplen == 0)
        return 0;
    return X509_VERIFY_PARAM_set1_ip(param, ipout, iplen);
}

int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
{
    return param->depth;
}

int X509_VERIFY_PARAM_get_auth_level(const X509_VERIFY_PARAM *param)
{
    return param->auth_level;
}

const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
{
    return param->name;
}

#define vpm_empty_id NULL, 0U, NULL, NULL, 0, NULL, 0

/*
 * Default verify parameters: these are used for various applications and can
 * be overridden by the user specified table. NB: the 'name' field *must* be
 * in alphabetical order because it will be searched using OBJ_search.
 */

static const X509_VERIFY_PARAM default_table[] = {
    { "default", /* X509 default parameters */
        0, /* check time to use */
        0, /* inheritance flags */
        X509_V_FLAG_TRUSTED_FIRST, /* flags */
        0, /* purpose */
        0, /* trust */
        100, /* depth */
        -1, /* auth_level */
        NULL, /* policies */
        vpm_empty_id },
    { "pkcs7", /* S/MIME sign parameters */
        0, /* check time to use */
        0, /* inheritance flags */
        0, /* flags */
        X509_PURPOSE_SMIME_SIGN, /* purpose */
        X509_TRUST_EMAIL, /* trust */
        -1, /* depth */
        -1, /* auth_level */
        NULL, /* policies */
        vpm_empty_id },
    { "smime_sign", /* S/MIME sign parameters */
        0, /* check time to use */
        0, /* inheritance flags */
        0, /* flags */
        X509_PURPOSE_SMIME_SIGN, /* purpose */
        X509_TRUST_EMAIL, /* trust */
        -1, /* depth */
        -1, /* auth_level */
        NULL, /* policies */
        vpm_empty_id },
    { "ssl_client", /* SSL/TLS client parameters */
        0, /* check time to use */
        0, /* inheritance flags */
        0, /* flags */
        X509_PURPOSE_SSL_CLIENT, /* purpose */
        X509_TRUST_SSL_CLIENT, /* trust */
        -1, /* depth */
        -1, /* auth_level */
        NULL, /* policies */
        vpm_empty_id },
    { "ssl_server", /* SSL/TLS server parameters */
        0, /* check time to use */
        0, /* inheritance flags */
        0, /* flags */
        X509_PURPOSE_SSL_SERVER, /* purpose */
        X509_TRUST_SSL_SERVER, /* trust */
        -1, /* depth */
        -1, /* auth_level */
        NULL, /* policies */
        vpm_empty_id }
};

static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;

static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
{
    return strcmp(a->name, b->name);
}

DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);
IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);

static int param_cmp(const X509_VERIFY_PARAM *const *a,
    const X509_VERIFY_PARAM *const *b)
{
    return strcmp((*a)->name, (*b)->name);
}

int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
{
    int idx;
    X509_VERIFY_PARAM *ptmp;

    if (param_table == NULL) {
        param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
        if (param_table == NULL)
            return 0;
    } else {
        idx = sk_X509_VERIFY_PARAM_find(param_table, param);
        if (idx >= 0) {
            ptmp = sk_X509_VERIFY_PARAM_delete(param_table, idx);
            X509_VERIFY_PARAM_free(ptmp);
        }
    }

    if (sk_X509_VERIFY_PARAM_push(param_table, param) <= 0)
        return 0;
    return 1;
}

int X509_VERIFY_PARAM_get_count(void)
{
    int num = OSSL_NELEM(default_table);

    if (param_table != NULL)
        num += sk_X509_VERIFY_PARAM_num(param_table);
    return num;
}

const X509_VERIFY_PARAM *X509_VERIFY_PARAM_get0(int id)
{
    int num = OSSL_NELEM(default_table);

    if (id < 0) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
        return NULL;
    }

    if (id < num)
        return default_table + id;
    return sk_X509_VERIFY_PARAM_value(param_table, id - num);
}

const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
{
    int idx;
    X509_VERIFY_PARAM pm;

    pm.name = (char *)name;
    if (param_table != NULL) {
        idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
        if (idx >= 0)
            return sk_X509_VERIFY_PARAM_value(param_table, idx);
    }
    return OBJ_bsearch_table(&pm, default_table, OSSL_NELEM(default_table));
}

void X509_VERIFY_PARAM_table_cleanup(void)
{
    sk_X509_VERIFY_PARAM_pop_free(param_table, X509_VERIFY_PARAM_free);
    param_table = NULL;
}

Coverage Report

Created: 2025-12-31 06:58

Line	Count	Source
1		/*
2		* Copyright 2004-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
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
8		*/
9
10		#include <stdio.h>
11
12		#include "internal/cryptlib.h"
13		#include <openssl/crypto.h>
14		#include <openssl/buffer.h>
15		#include <openssl/x509.h>
16		#include <openssl/x509v3.h>
17		#include "crypto/x509.h"
18
19		#include "x509_local.h"
20
21		/* X509_VERIFY_PARAM functions */
22
23	0	#define SET_HOST 0
24	0	#define ADD_HOST 1
25
26		static char str_copy(const char s)
27	0	{
28	0	return OPENSSL_strdup(s);
29	0	}
30
31		static void str_free(char *s)
32	0	{
33	0	OPENSSL_free(s);
34	0	}
35
36		static int int_x509_param_set_hosts(X509_VERIFY_PARAM *vpm, int mode,
37		const char *name, size_t namelen)
38	0	{
39	0	char *copy;
40
41		/*
42		* Refuse names with embedded NUL bytes, except perhaps as final byte.
43		* XXX: Do we need to push an error onto the error stack?
44		*/
45	0	if (namelen == 0 \|\| name == NULL)
46	0	namelen = name ? strlen(name) : 0;
47	0	else if (name != NULL
48	0	&& memchr(name, '\0', namelen > 1 ? namelen - 1 : namelen) != NULL)
49	0	return 0;
50	0	if (namelen > 0 && name[namelen - 1] == '\0')
51	0	--namelen;
52
53	0	if (mode == SET_HOST) {
54	0	sk_OPENSSL_STRING_pop_free(vpm->hosts, str_free);
55	0	vpm->hosts = NULL;
56	0	}
57	0	if (name == NULL \|\| namelen == 0)
58	0	return 1;
59
60	0	copy = OPENSSL_strndup(name, namelen);
61	0	if (copy == NULL)
62	0	return 0;
63
64	0	if (vpm->hosts == NULL && (vpm->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
65	0	OPENSSL_free(copy);
66	0	return 0;
67	0	}
68
69	0	if (!sk_OPENSSL_STRING_push(vpm->hosts, copy)) {
70	0	OPENSSL_free(copy);
71	0	if (sk_OPENSSL_STRING_num(vpm->hosts) == 0) {
72	0	sk_OPENSSL_STRING_free(vpm->hosts);
73	0	vpm->hosts = NULL;
74	0	}
75	0	return 0;
76	0	}
77
78	0	return 1;
79	0	}
80
81		X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
82	576k	{
83	576k	X509_VERIFY_PARAM *param;
84
85	576k	param = OPENSSL_zalloc(sizeof(*param));
86	576k	if (param == NULL) {
87	0	ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
88	0	return NULL;
89	0	}
90	576k	param->trust = X509_TRUST_DEFAULT;
91		/* param->inh_flags = X509_VP_FLAG_DEFAULT; */
92	576k	param->depth = -1;
93	576k	param->auth_level = -1; /* -1 means unset, 0 is explicit */
94	576k	return param;
95	576k	}
96
97		void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
98	637k	{
99	637k	if (param == NULL)
100	61.1k	return;
101	576k	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
102	576k	sk_OPENSSL_STRING_pop_free(param->hosts, str_free);
103	576k	OPENSSL_free(param->peername);
104	576k	OPENSSL_free(param->email);
105	576k	OPENSSL_free(param->ip);
106	576k	OPENSSL_free(param);
107	576k	}
108
109		/*-
110		* This function determines how parameters are "inherited" from one structure
111		* to another. There are several different ways this can happen.
112		*
113		* 1. If a child structure needs to have its values initialized from a parent
114		* they are simply copied across. For example SSL_CTX copied to SSL.
115		* 2. If the structure should take on values only if they are currently unset.
116		* For example the values in an SSL structure will take appropriate value
117		* for SSL servers or clients but only if the application has not set new
118		* ones.
119		*
120		* The "inh_flags" field determines how this function behaves.
121		*
122		* Normally any values which are set in the default are not copied from the
123		* destination and verify flags are ORed together.
124		*
125		* If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
126		* to the destination. Effectively the values in "to" become default values
127		* which will be used only if nothing new is set in "from".
128		*
129		* If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
130		* they are set or not. Flags is still Ored though.
131		*
132		* If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
133		* of ORed.
134		*
135		* If X509_VP_FLAG_LOCKED is set then no values are copied.
136		*
137		* If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
138		* after the next call.
139		*/
140
141		/* Macro to test if a field should be copied from src to dest */
142
143		#define test_x509_verify_param_copy(field, def) \
144	3.36M	(to_overwrite \|\| (src->field != def && (to_default \|\| dest->field == def)))
145
146		/* Macro to test and copy a field if necessary */
147
148		#define x509_verify_param_copy(field, def) \
149	1.87M	if (test_x509_verify_param_copy(field, def)) \
150	1.87M	dest->field = src->field;
151
152		int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
153		const X509_VERIFY_PARAM *src)
154	374k	{
155	374k	unsigned long inh_flags;
156	374k	int to_default, to_overwrite;
157
158	374k	if (src == NULL)
159	0	return 1;
160	374k	inh_flags = dest->inh_flags \| src->inh_flags;
161
162	374k	if ((inh_flags & X509_VP_FLAG_ONCE) != 0)
163	0	dest->inh_flags = 0;
164
165	374k	if ((inh_flags & X509_VP_FLAG_LOCKED) != 0)
166	0	return 1;
167
168	374k	to_default = (inh_flags & X509_VP_FLAG_DEFAULT) != 0;
169	374k	to_overwrite = (inh_flags & X509_VP_FLAG_OVERWRITE) != 0;
170
171	374k	x509_verify_param_copy(purpose, 0);
172	374k	x509_verify_param_copy(trust, X509_TRUST_DEFAULT);
173	374k	x509_verify_param_copy(depth, -1);
174	374k	x509_verify_param_copy(auth_level, -1);
175
176		/* If overwrite or check time not set, copy across */
177
178	374k	if (to_overwrite \|\| (dest->flags & X509_V_FLAG_USE_CHECK_TIME) == 0) {
179	374k	dest->check_time = src->check_time;
180	374k	dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
181		/* Don't need to copy flag: that is done below */
182	374k	}
183
184	374k	if ((inh_flags & X509_VP_FLAG_RESET_FLAGS) != 0)
185	0	dest->flags = 0;
186
187	374k	dest->flags \|= src->flags;
188
189	374k	if (test_x509_verify_param_copy(policies, NULL)) {
190	0	if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
191	0	return 0;
192	0	}
193
194	374k	x509_verify_param_copy(hostflags, 0);
195
196	374k	if (test_x509_verify_param_copy(hosts, NULL)) {
197	0	sk_OPENSSL_STRING_pop_free(dest->hosts, str_free);
198	0	dest->hosts = NULL;
199	0	if (src->hosts != NULL) {
200	0	dest->hosts = sk_OPENSSL_STRING_deep_copy(src->hosts, str_copy, str_free);
201	0	if (dest->hosts == NULL)
202	0	return 0;
203	0	}
204	0	}
205
206	374k	if (test_x509_verify_param_copy(email, NULL)) {
207	0	if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen))
208	0	return 0;
209	0	}
210
211	374k	if (test_x509_verify_param_copy(ip, NULL)) {
212	0	if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen))
213	0	return 0;
214	0	}
215
216	374k	return 1;
217	374k	}
218
219		int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
220		const X509_VERIFY_PARAM *from)
221	41.2k	{
222	41.2k	unsigned long save_flags;
223	41.2k	int ret;
224
225	41.2k	if (to == NULL) {
226	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
227	0	return 0;
228	0	}
229	41.2k	save_flags = to->inh_flags;
230	41.2k	to->inh_flags \|= X509_VP_FLAG_DEFAULT;
231	41.2k	ret = X509_VERIFY_PARAM_inherit(to, from);
232	41.2k	to->inh_flags = save_flags;
233	41.2k	return ret;
234	41.2k	}
235
236		static int int_x509_param_set1(char *pdest, size_t pdestlen,
237		const char *src, size_t srclen)
238	0	{
239	0	char *tmp;
240
241	0	if (src != NULL) {
242	0	if (srclen == 0)
243	0	srclen = strlen(src);
244
245	0	tmp = OPENSSL_malloc(srclen + 1);
246	0	if (tmp == NULL)
247	0	return 0;
248	0	memcpy(tmp, src, srclen);
249	0	tmp[srclen] = '\0'; /* enforce NUL termination */
250	0	} else {
251	0	tmp = NULL;
252	0	srclen = 0;
253	0	}
254	0	OPENSSL_free(*pdest);
255	0	*pdest = tmp;
256	0	if (pdestlen != NULL)
257	0	*pdestlen = srclen;
258	0	return 1;
259	0	}
260
261		int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM param, const char name)
262	0	{
263	0	OPENSSL_free(param->name);
264	0	param->name = OPENSSL_strdup(name);
265	0	return param->name != NULL;
266	0	}
267
268		int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
269	66.9k	{
270	66.9k	param->flags \|= flags;
271	66.9k	if ((flags & X509_V_FLAG_POLICY_MASK) != 0)
272	0	param->flags \|= X509_V_FLAG_POLICY_CHECK;
273	66.9k	return 1;
274	66.9k	}
275
276		int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
277		unsigned long flags)
278	0	{
279	0	param->flags &= ~flags;
280	0	return 1;
281	0	}
282
283		unsigned long X509_VERIFY_PARAM_get_flags(const X509_VERIFY_PARAM *param)
284	0	{
285	0	return param->flags;
286	0	}
287
288		uint32_t X509_VERIFY_PARAM_get_inh_flags(const X509_VERIFY_PARAM *param)
289	0	{
290	0	return param->inh_flags;
291	0	}
292
293		int X509_VERIFY_PARAM_set_inh_flags(X509_VERIFY_PARAM *param, uint32_t flags)
294	0	{
295	0	param->inh_flags = flags;
296	0	return 1;
297	0	}
298
299		int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
300	0	{
301	0	return X509_PURPOSE_set(&param->purpose, purpose);
302	0	}
303
304		int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
305	0	{
306	0	return X509_TRUST_set(&param->trust, trust);
307	0	}
308
309		void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
310	0	{
311	0	param->depth = depth;
312	0	}
313
314		void X509_VERIFY_PARAM_set_auth_level(X509_VERIFY_PARAM *param, int auth_level)
315	32.8k	{
316	32.8k	param->auth_level = auth_level;
317	32.8k	}
318
319		time_t X509_VERIFY_PARAM_get_time(const X509_VERIFY_PARAM *param)
320	0	{
321	0	return param->check_time;
322	0	}
323
324		void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
325	0	{
326	0	param->check_time = t;
327	0	param->flags \|= X509_V_FLAG_USE_CHECK_TIME;
328	0	}
329
330		int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
331		ASN1_OBJECT *policy)
332	0	{
333	0	if (param->policies == NULL) {
334	0	param->policies = sk_ASN1_OBJECT_new_null();
335	0	if (param->policies == NULL)
336	0	return 0;
337	0	}
338
339	0	if (sk_ASN1_OBJECT_push(param->policies, policy) <= 0)
340	0	return 0;
341	0	return 1;
342	0	}
343
344		int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
345		STACK_OF(ASN1_OBJECT) *policies)
346	0	{
347	0	int i;
348	0	ASN1_OBJECT oid, doid;
349
350	0	if (param == NULL) {
351	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
352	0	return 0;
353	0	}
354	0	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
355
356	0	if (policies == NULL) {
357	0	param->policies = NULL;
358	0	return 1;
359	0	}
360
361	0	param->policies = sk_ASN1_OBJECT_new_null();
362	0	if (param->policies == NULL)
363	0	return 0;
364
365	0	for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) {
366	0	oid = sk_ASN1_OBJECT_value(policies, i);
367	0	doid = OBJ_dup(oid);
368	0	if (doid == NULL)
369	0	return 0;
370	0	if (!sk_ASN1_OBJECT_push(param->policies, doid)) {
371	0	ASN1_OBJECT_free(doid);
372	0	return 0;
373	0	}
374	0	}
375	0	param->flags \|= X509_V_FLAG_POLICY_CHECK;
376	0	return 1;
377	0	}
378
379		char X509_VERIFY_PARAM_get0_host(X509_VERIFY_PARAM param, int idx)
380	0	{
381	0	return sk_OPENSSL_STRING_value(param->hosts, idx);
382	0	}
383
384		int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
385		const char *name, size_t namelen)
386	0	{
387	0	return int_x509_param_set_hosts(param, SET_HOST, name, namelen);
388	0	}
389
390		int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM *param,
391		const char *name, size_t namelen)
392	0	{
393	0	return int_x509_param_set_hosts(param, ADD_HOST, name, namelen);
394	0	}
395
396		void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
397		unsigned int flags)
398	0	{
399	0	param->hostflags = flags;
400	0	}
401
402		unsigned int X509_VERIFY_PARAM_get_hostflags(const X509_VERIFY_PARAM *param)
403	0	{
404	0	return param->hostflags;
405	0	}
406
407		char X509_VERIFY_PARAM_get0_peername(const X509_VERIFY_PARAM param)
408	0	{
409	0	return param->peername;
410	0	}
411
412		/*
413		* Move peername from one param structure to another, freeing any name present
414		* at the target. If the source is a NULL parameter structure, free and zero
415		* the target peername.
416		*/
417		void X509_VERIFY_PARAM_move_peername(X509_VERIFY_PARAM *to,
418		X509_VERIFY_PARAM *from)
419	359k	{
420	359k	char *peername = (from != NULL) ? from->peername : NULL;
421
422	359k	if (to->peername != peername) {
423	0	OPENSSL_free(to->peername);
424	0	to->peername = peername;
425	0	}
426	359k	if (from != NULL)
427	32.8k	from->peername = NULL;
428	359k	}
429
430		char X509_VERIFY_PARAM_get0_email(X509_VERIFY_PARAM param)
431	0	{
432	0	return param->email;
433	0	}
434
435		int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
436		const char *email, size_t emaillen)
437	0	{
438	0	return int_x509_param_set1(&param->email, &param->emaillen,
439	0	email, emaillen);
440	0	}
441
442		static unsigned char int_X509_VERIFY_PARAM_get0_ip(X509_VERIFY_PARAM param, size_t *plen)
443	0	{
444	0	if (param == NULL \|\| param->ip == NULL) {
445	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
446	0	return NULL;
447	0	}
448	0	if (plen != NULL)
449	0	*plen = param->iplen;
450	0	return param->ip;
451	0	}
452
453		char X509_VERIFY_PARAM_get1_ip_asc(X509_VERIFY_PARAM param)
454	0	{
455	0	size_t iplen;
456	0	unsigned char *ip = int_X509_VERIFY_PARAM_get0_ip(param, &iplen);
457
458	0	return ip == NULL ? NULL : ossl_ipaddr_to_asc(ip, iplen);
459	0	}
460
461		int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
462		const unsigned char *ip, size_t iplen)
463	0	{
464	0	if (iplen != 0 && iplen != 4 && iplen != 16) {
465	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
466	0	return 0;
467	0	}
468	0	return int_x509_param_set1((char **)&param->ip, &param->iplen,
469	0	(char *)ip, iplen);
470	0	}
471
472		int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM param, const char ipasc)
473	0	{
474	0	unsigned char ipout[16];
475	0	size_t iplen = (size_t)ossl_a2i_ipadd(ipout, ipasc);
476
477	0	if (iplen == 0)
478	0	return 0;
479	0	return X509_VERIFY_PARAM_set1_ip(param, ipout, iplen);
480	0	}
481
482		int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
483	0	{
484	0	return param->depth;
485	0	}
486
487		int X509_VERIFY_PARAM_get_auth_level(const X509_VERIFY_PARAM *param)
488	0	{
489	0	return param->auth_level;
490	0	}
491
492		const char X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM param)
493	0	{
494	0	return param->name;
495	0	}
496
497		#define vpm_empty_id NULL, 0U, NULL, NULL, 0, NULL, 0
498
499		/*
500		* Default verify parameters: these are used for various applications and can
501		* be overridden by the user specified table. NB: the 'name' field must be
502		* in alphabetical order because it will be searched using OBJ_search.
503		*/
504
505		static const X509_VERIFY_PARAM default_table[] = {
506		{ "default", /* X509 default parameters */
507		0, /* check time to use */
508		0, /* inheritance flags */
509		X509_V_FLAG_TRUSTED_FIRST, /* flags */
510		0, /* purpose */
511		0, /* trust */
512		100, /* depth */
513		-1, /* auth_level */
514		NULL, /* policies */
515		vpm_empty_id },
516		{ "pkcs7", /* S/MIME sign parameters */
517		0, /* check time to use */
518		0, /* inheritance flags */
519		0, /* flags */
520		X509_PURPOSE_SMIME_SIGN, /* purpose */
521		X509_TRUST_EMAIL, /* trust */
522		-1, /* depth */
523		-1, /* auth_level */
524		NULL, /* policies */
525		vpm_empty_id },
526		{ "smime_sign", /* S/MIME sign parameters */
527		0, /* check time to use */
528		0, /* inheritance flags */
529		0, /* flags */
530		X509_PURPOSE_SMIME_SIGN, /* purpose */
531		X509_TRUST_EMAIL, /* trust */
532		-1, /* depth */
533		-1, /* auth_level */
534		NULL, /* policies */
535		vpm_empty_id },
536		{ "ssl_client", /* SSL/TLS client parameters */
537		0, /* check time to use */
538		0, /* inheritance flags */
539		0, /* flags */
540		X509_PURPOSE_SSL_CLIENT, /* purpose */
541		X509_TRUST_SSL_CLIENT, /* trust */
542		-1, /* depth */
543		-1, /* auth_level */
544		NULL, /* policies */
545		vpm_empty_id },
546		{ "ssl_server", /* SSL/TLS server parameters */
547		0, /* check time to use */
548		0, /* inheritance flags */
549		0, /* flags */
550		X509_PURPOSE_SSL_SERVER, /* purpose */
551		X509_TRUST_SSL_SERVER, /* trust */
552		-1, /* depth */
553		-1, /* auth_level */
554		NULL, /* policies */
555		vpm_empty_id }
556		};
557
558		static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
559
560		static int table_cmp(const X509_VERIFY_PARAM a, const X509_VERIFY_PARAM b)
561	208k	{
562	208k	return strcmp(a->name, b->name);
563	208k	}
564
565		DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);
566		IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);
567
568		static int param_cmp(const X509_VERIFY_PARAM const a,
569		const X509_VERIFY_PARAM const b)
570	0	{
571	0	return strcmp((a)->name, (b)->name);
572	0	}
573
574		int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
575	0	{
576	0	int idx;
577	0	X509_VERIFY_PARAM *ptmp;
578
579	0	if (param_table == NULL) {
580	0	param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
581	0	if (param_table == NULL)
582	0	return 0;
583	0	} else {
584	0	idx = sk_X509_VERIFY_PARAM_find(param_table, param);
585	0	if (idx >= 0) {
586	0	ptmp = sk_X509_VERIFY_PARAM_delete(param_table, idx);
587	0	X509_VERIFY_PARAM_free(ptmp);
588	0	}
589	0	}
590
591	0	if (sk_X509_VERIFY_PARAM_push(param_table, param) <= 0)
592	0	return 0;
593	0	return 1;
594	0	}
595
596		int X509_VERIFY_PARAM_get_count(void)
597	0	{
598	0	int num = OSSL_NELEM(default_table);
599
600	0	if (param_table != NULL)
601	0	num += sk_X509_VERIFY_PARAM_num(param_table);
602	0	return num;
603	0	}
604
605		const X509_VERIFY_PARAM *X509_VERIFY_PARAM_get0(int id)
606	0	{
607	0	int num = OSSL_NELEM(default_table);
608
609	0	if (id < 0) {
610	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_INVALID_ARGUMENT);
611	0	return NULL;
612	0	}
613
614	0	if (id < num)
615	0	return default_table + id;
616	0	return sk_X509_VERIFY_PARAM_value(param_table, id - num);
617	0	}
618
619		const X509_VERIFY_PARAM X509_VERIFY_PARAM_lookup(const char name)
620	101k	{
621	101k	int idx;
622	101k	X509_VERIFY_PARAM pm;
623
624	101k	pm.name = (char *)name;
625	101k	if (param_table != NULL) {
626	0	idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
627	0	if (idx >= 0)
628	0	return sk_X509_VERIFY_PARAM_value(param_table, idx);
629	0	}
630	101k	return OBJ_bsearch_table(&pm, default_table, OSSL_NELEM(default_table));
631	101k	}
632
633		void X509_VERIFY_PARAM_table_cleanup(void)
634	0	{
635	0	sk_X509_VERIFY_PARAM_pop_free(param_table, X509_VERIFY_PARAM_free);
636		param_table = NULL;
637	0	}