/src/openssl/crypto/provider_conf.c

Source
/*
 * Copyright 2019-2026 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 <string.h>
#include <openssl/trace.h>
#include <openssl/err.h>
#include <openssl/conf.h>
#include <openssl/safestack.h>
#include <openssl/provider.h>
#include "internal/provider.h"
#include "internal/cryptlib.h"
#include "internal/conf.h"
#include "provider_local.h"
#include "crypto/context.h"

DEFINE_STACK_OF(OSSL_PROVIDER)

/* PROVIDER config module */

typedef struct {
    CRYPTO_RWLOCK *lock;
    STACK_OF(OSSL_PROVIDER) *activated_providers;
} PROVIDER_CONF_GLOBAL;

void *ossl_prov_conf_ctx_new(OSSL_LIB_CTX *libctx)
{
    PROVIDER_CONF_GLOBAL *pcgbl = OPENSSL_zalloc(sizeof(*pcgbl));

    if (pcgbl == NULL)
        return NULL;

    pcgbl->lock = CRYPTO_THREAD_lock_new();
    if (pcgbl->lock == NULL) {
        OPENSSL_free(pcgbl);
        return NULL;
    }

    return pcgbl;
}

void ossl_prov_conf_ctx_free(void *vpcgbl)
{
    PROVIDER_CONF_GLOBAL *pcgbl = vpcgbl;

    sk_OSSL_PROVIDER_pop_free(pcgbl->activated_providers,
        ossl_provider_free);

    OSSL_TRACE(CONF, "Cleaned up providers\n");
    CRYPTO_THREAD_lock_free(pcgbl->lock);
    OPENSSL_free(pcgbl);
}

static const char *skip_dot(const char *name)
{
    const char *p = strchr(name, '.');

    if (p != NULL)
        return p + 1;
    return name;
}

/*
 * Parse the provider params section
 * Returns:
 * 1 for success
 * 0 for non-fatal errors
 * < 0 for fatal errors
 */
static int provider_conf_params_internal(OSSL_PROVIDER *prov,
    OSSL_PROVIDER_INFO *provinfo,
    const char *name, const char *value,
    const CONF *cnf,
    STACK_OF(OPENSSL_CSTRING) *visited)
{
    STACK_OF(CONF_VALUE) *sect;
    int ok = 1;
    int rc = 0;

    sect = NCONF_get_section(cnf, value);
    if (sect != NULL) {
        int i;
        char buffer[512];
        size_t buffer_len = 0;

        OSSL_TRACE1(CONF, "Provider params: start section %s\n", value);

        /*
         * Check to see if the provided section value has already
         * been visited.  If it has, then we have a recursive lookup
         * in the configuration which isn't valid.  As such we should error
         * out
         */
        for (i = 0; i < sk_OPENSSL_CSTRING_num(visited); i++) {
            if (sk_OPENSSL_CSTRING_value(visited, i) == value) {
                ERR_raise(ERR_LIB_CONF, CONF_R_RECURSIVE_SECTION_REFERENCE);
                return -1;
            }
        }

        /*
         * We've not visited this node yet, so record it on the stack
         */
        if (!sk_OPENSSL_CSTRING_push(visited, value))
            return -1;

        if (name != NULL) {
            OPENSSL_strlcpy(buffer, name, sizeof(buffer));
            OPENSSL_strlcat(buffer, ".", sizeof(buffer));
            buffer_len = strlen(buffer);
        }

        for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
            CONF_VALUE *sectconf = sk_CONF_VALUE_value(sect, i);

            if (buffer_len + strlen(sectconf->name) >= sizeof(buffer)) {
                sk_OPENSSL_CSTRING_pop(visited);
                return -1;
            }
            buffer[buffer_len] = '\0';
            OPENSSL_strlcat(buffer, sectconf->name, sizeof(buffer));
            rc = provider_conf_params_internal(prov, provinfo, buffer,
                sectconf->value, cnf, visited);
            if (rc < 0) {
                sk_OPENSSL_CSTRING_pop(visited);
                return rc;
            }
        }
        sk_OPENSSL_CSTRING_pop(visited);

        OSSL_TRACE1(CONF, "Provider params: finish section %s\n", value);
    } else {
        OSSL_TRACE2(CONF, "Provider params: %s = %s\n", name, value);
        if (prov != NULL)
            ok = OSSL_PROVIDER_add_conf_parameter(prov, name, value);
        else
            ok = ossl_provider_info_add_parameter(provinfo, name, value);
    }

    return ok;
}

/*
 * recursively parse the provider configuration section
 * of the config file.
 * Returns
 * 1 on success
 * 0 on non-fatal error
 * < 0 on fatal errors
 */
static int provider_conf_params(OSSL_PROVIDER *prov,
    OSSL_PROVIDER_INFO *provinfo,
    const char *name, const char *value,
    const CONF *cnf)
{
    int rc;
    STACK_OF(OPENSSL_CSTRING) *visited = sk_OPENSSL_CSTRING_new_null();

    if (visited == NULL)
        return -1;

    rc = provider_conf_params_internal(prov, provinfo, name,
        value, cnf, visited);

    sk_OPENSSL_CSTRING_free(visited);

    return rc;
}

static int prov_already_activated(const char *name,
    STACK_OF(OSSL_PROVIDER) *activated)
{
    int i, max;

    if (activated == NULL)
        return 0;

    max = sk_OSSL_PROVIDER_num(activated);
    for (i = 0; i < max; i++) {
        OSSL_PROVIDER *tstprov = sk_OSSL_PROVIDER_value(activated, i);

        if (strcmp(OSSL_PROVIDER_get0_name(tstprov), name) == 0) {
            return 1;
        }
    }

    return 0;
}

/*
 * Attempt to activate a provider
 * Returns:
 * 1 on successful activation
 * 0 on failed activation for non-fatal error
 * < 0 on failed activation for fatal errors
 */
static int provider_conf_activate(OSSL_LIB_CTX *libctx, const char *name,
    const char *value, const char *path,
    int soft, const CONF *cnf)
{
    PROVIDER_CONF_GLOBAL *pcgbl
        = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_CONF_INDEX);
    OSSL_PROVIDER *prov = NULL, *actual = NULL;
    int ok = 0;

    if (pcgbl == NULL || !CRYPTO_THREAD_write_lock(pcgbl->lock)) {
        ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
        return -1;
    }
    if (!prov_already_activated(name, pcgbl->activated_providers)) {
        /*
         * There is an attempt to activate a provider, so we should disable
         * loading of fallbacks. Otherwise a misconfiguration could mean the
         * intended provider does not get loaded. Subsequent fetches could
         * then fallback to the default provider - which may be the wrong
         * thing.
         */
        if (!ossl_provider_disable_fallback_loading(libctx)) {
            CRYPTO_THREAD_unlock(pcgbl->lock);
            ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
            return -1;
        }
        prov = ossl_provider_find(libctx, name, 1);
        if (prov == NULL)
            prov = ossl_provider_new(libctx, name, NULL, NULL, 1);
        if (prov == NULL) {
            CRYPTO_THREAD_unlock(pcgbl->lock);
            if (soft)
                ERR_clear_error();
            return (soft == 0) ? -1 : 0;
        }

        if (path != NULL)
            ossl_provider_set_module_path(prov, path);

        ok = provider_conf_params(prov, NULL, NULL, value, cnf);

        if (ok == 1) {
            if (!ossl_provider_activate(prov, 1, 0)) {
                ok = 0;
            } else if (!ossl_provider_add_to_store(prov, &actual, 0)) {
                ossl_provider_deactivate(prov, 1);
                ok = 0;
            } else if (actual != prov
                && !ossl_provider_activate(actual, 1, 0)) {
                ossl_provider_free(actual);
                ok = 0;
            } else {
                if (pcgbl->activated_providers == NULL)
                    pcgbl->activated_providers = sk_OSSL_PROVIDER_new_null();
                if (pcgbl->activated_providers == NULL
                    || !sk_OSSL_PROVIDER_push(pcgbl->activated_providers,
                        actual)) {
                    ossl_provider_deactivate(actual, 1);
                    ossl_provider_free(actual);
                    ok = 0;
                } else {
                    ok = 1;
                }
            }
        }

        if (ok <= 0)
            ossl_provider_free(prov);
    }
    CRYPTO_THREAD_unlock(pcgbl->lock);

    return ok;
}

static int provider_conf_parse_bool_setting(const char *confname,
    const char *confvalue, int *val)
{
    if (!ossl_conf_parse_bool(confvalue, val)) {
        ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR,
            "directive %s set to unrecognized value",
            confname);
        return 0;
    }

    return 1;
}

static int provider_conf_load(OSSL_LIB_CTX *libctx, const char *name,
    const char *value, const CONF *cnf)
{
    int i;
    STACK_OF(CONF_VALUE) *ecmds;
    int soft = 0;
    const char *path = NULL;
    int activate = 0;
    int ok = 0;
    int added = 0;

    name = skip_dot(name);
    OSSL_TRACE1(CONF, "Configuring provider %s\n", name);
    /* Value is a section containing PROVIDER commands */
    ecmds = NCONF_get_section(cnf, value);

    if (!ecmds) {
        ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR,
            "section=%s not found", value);
        return 0;
    }

    /* Find the needed data first */
    for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) {
        CONF_VALUE *ecmd = sk_CONF_VALUE_value(ecmds, i);
        const char *confname = skip_dot(ecmd->name);
        const char *confvalue = ecmd->value;

        OSSL_TRACE2(CONF, "Provider command: %s = %s\n",
            confname, confvalue);

        /* First handle some special pseudo confs */

        /* Override provider name to use */
        if (strcmp(confname, "identity") == 0) {
            name = confvalue;
        } else if (strcmp(confname, "soft_load") == 0) {
            if (!provider_conf_parse_bool_setting(confname,
                    confvalue, &soft))
                return 0;
            /* Load a dynamic PROVIDER */
        } else if (strcmp(confname, "module") == 0) {
            path = confvalue;
        } else if (strcmp(confname, "activate") == 0) {
            if (!provider_conf_parse_bool_setting(confname,
                    confvalue, &activate))
                return 0;
        }
    }

    if (activate) {
        ok = provider_conf_activate(libctx, name, value, path, soft, cnf);
    } else {
        OSSL_PROVIDER_INFO entry;

        memset(&entry, 0, sizeof(entry));
        ok = 1;
        if (name != NULL) {
            entry.name = OPENSSL_strdup(name);
            if (entry.name == NULL)
                ok = 0;
        }
        if (ok && path != NULL) {
            entry.path = OPENSSL_strdup(path);
            if (entry.path == NULL)
                ok = 0;
        }
        if (ok)
            ok = provider_conf_params(NULL, &entry, NULL, value, cnf);
        if (ok >= 1 && (entry.path != NULL || entry.parameters != NULL)) {
            ok = ossl_provider_info_add_to_store(libctx, &entry);
            added = ok;
        }
        if (added == 0)
            ossl_provider_info_clear(&entry);
    }

    /*
     * Provider activation returns a tristate:
     * 1 for successful activation
     * 0 for non-fatal activation failure
     * < 0 for fatal activation failure
     * We return success (1) for activation, (1) for non-fatal activation
     * failure, and (0) for fatal activation failure
     */
    return ok >= 0;
}

static int provider_conf_init(CONF_IMODULE *md, const CONF *cnf)
{
    STACK_OF(CONF_VALUE) *elist;
    CONF_VALUE *cval;
    int i;

    OSSL_TRACE1(CONF, "Loading providers module: section %s\n",
        CONF_imodule_get_value(md));

    /* Value is a section containing PROVIDERs to configure */
    elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));

    if (!elist) {
        ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR);
        return 0;
    }

    for (i = 0; i < sk_CONF_VALUE_num(elist); i++) {
        cval = sk_CONF_VALUE_value(elist, i);
        if (!provider_conf_load(NCONF_get0_libctx((CONF *)cnf),
                cval->name, cval->value, cnf))
            return 0;
    }

    return 1;
}

void ossl_provider_add_conf_module(void)
{
    OSSL_TRACE(CONF, "Adding config module 'providers'\n");
    CONF_module_add("providers", provider_conf_init, NULL);
}

Coverage Report

Created: 2026-09-12 06:55

Line	Count	Source
1		/*
2		* Copyright 2019-2026 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 <string.h>
11		#include <openssl/trace.h>
12		#include <openssl/err.h>
13		#include <openssl/conf.h>
14		#include <openssl/safestack.h>
15		#include <openssl/provider.h>
16		#include "internal/provider.h"
17		#include "internal/cryptlib.h"
18		#include "internal/conf.h"
19		#include "provider_local.h"
20		#include "crypto/context.h"
21
22		DEFINE_STACK_OF(OSSL_PROVIDER)
23
24		/* PROVIDER config module */
25
26		typedef struct {
27		CRYPTO_RWLOCK *lock;
28		STACK_OF(OSSL_PROVIDER) *activated_providers;
29		} PROVIDER_CONF_GLOBAL;
30
31		void ossl_prov_conf_ctx_new(OSSL_LIB_CTX libctx)
32	429	{
33	429	PROVIDER_CONF_GLOBAL pcgbl = OPENSSL_zalloc(sizeof(pcgbl));
34
35	429	if (pcgbl == NULL)
36	0	return NULL;
37
38	429	pcgbl->lock = CRYPTO_THREAD_lock_new();
39	429	if (pcgbl->lock == NULL) {
40	0	OPENSSL_free(pcgbl);
41	0	return NULL;
42	0	}
43
44	429	return pcgbl;
45	429	}
46
47		void ossl_prov_conf_ctx_free(void *vpcgbl)
48	154	{
49	154	PROVIDER_CONF_GLOBAL *pcgbl = vpcgbl;
50
51	154	sk_OSSL_PROVIDER_pop_free(pcgbl->activated_providers,
52	154	ossl_provider_free);
53
54	154	OSSL_TRACE(CONF, "Cleaned up providers\n");
55	154	CRYPTO_THREAD_lock_free(pcgbl->lock);
56	154	OPENSSL_free(pcgbl);
57	154	}
58
59		static const char skip_dot(const char name)
60	0	{
61	0	const char *p = strchr(name, '.');
62
63	0	if (p != NULL)
64	0	return p + 1;
65	0	return name;
66	0	}
67
68		/*
69		* Parse the provider params section
70		* Returns:
71		* 1 for success
72		* 0 for non-fatal errors
73		* < 0 for fatal errors
74		*/
75		static int provider_conf_params_internal(OSSL_PROVIDER *prov,
76		OSSL_PROVIDER_INFO *provinfo,
77		const char name, const char value,
78		const CONF *cnf,
79		STACK_OF(OPENSSL_CSTRING) *visited)
80	0	{
81	0	STACK_OF(CONF_VALUE) *sect;
82	0	int ok = 1;
83	0	int rc = 0;
84
85	0	sect = NCONF_get_section(cnf, value);
86	0	if (sect != NULL) {
87	0	int i;
88	0	char buffer[512];
89	0	size_t buffer_len = 0;
90
91	0	OSSL_TRACE1(CONF, "Provider params: start section %s\n", value);
92
93		/*
94		* Check to see if the provided section value has already
95		* been visited. If it has, then we have a recursive lookup
96		* in the configuration which isn't valid. As such we should error
97		* out
98		*/
99	0	for (i = 0; i < sk_OPENSSL_CSTRING_num(visited); i++) {
100	0	if (sk_OPENSSL_CSTRING_value(visited, i) == value) {
101	0	ERR_raise(ERR_LIB_CONF, CONF_R_RECURSIVE_SECTION_REFERENCE);
102	0	return -1;
103	0	}
104	0	}
105
106		/*
107		* We've not visited this node yet, so record it on the stack
108		*/
109	0	if (!sk_OPENSSL_CSTRING_push(visited, value))
110	0	return -1;
111
112	0	if (name != NULL) {
113	0	OPENSSL_strlcpy(buffer, name, sizeof(buffer));
114	0	OPENSSL_strlcat(buffer, ".", sizeof(buffer));
115	0	buffer_len = strlen(buffer);
116	0	}
117
118	0	for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
119	0	CONF_VALUE *sectconf = sk_CONF_VALUE_value(sect, i);
120
121	0	if (buffer_len + strlen(sectconf->name) >= sizeof(buffer)) {
122	0	sk_OPENSSL_CSTRING_pop(visited);
123	0	return -1;
124	0	}
125	0	buffer[buffer_len] = '\0';
126	0	OPENSSL_strlcat(buffer, sectconf->name, sizeof(buffer));
127	0	rc = provider_conf_params_internal(prov, provinfo, buffer,
128	0	sectconf->value, cnf, visited);
129	0	if (rc < 0) {
130	0	sk_OPENSSL_CSTRING_pop(visited);
131	0	return rc;
132	0	}
133	0	}
134	0	sk_OPENSSL_CSTRING_pop(visited);
135
136	0	OSSL_TRACE1(CONF, "Provider params: finish section %s\n", value);
137	0	} else {
138	0	OSSL_TRACE2(CONF, "Provider params: %s = %s\n", name, value);
139	0	if (prov != NULL)
140	0	ok = OSSL_PROVIDER_add_conf_parameter(prov, name, value);
141	0	else
142	0	ok = ossl_provider_info_add_parameter(provinfo, name, value);
143	0	}
144
145	0	return ok;
146	0	}
147
148		/*
149		* recursively parse the provider configuration section
150		* of the config file.
151		* Returns
152		* 1 on success
153		* 0 on non-fatal error
154		* < 0 on fatal errors
155		*/
156		static int provider_conf_params(OSSL_PROVIDER *prov,
157		OSSL_PROVIDER_INFO *provinfo,
158		const char name, const char value,
159		const CONF *cnf)
160	0	{
161	0	int rc;
162	0	STACK_OF(OPENSSL_CSTRING) *visited = sk_OPENSSL_CSTRING_new_null();
163
164	0	if (visited == NULL)
165	0	return -1;
166
167	0	rc = provider_conf_params_internal(prov, provinfo, name,
168	0	value, cnf, visited);
169
170	0	sk_OPENSSL_CSTRING_free(visited);
171
172	0	return rc;
173	0	}
174
175		static int prov_already_activated(const char *name,
176		STACK_OF(OSSL_PROVIDER) *activated)
177	0	{
178	0	int i, max;
179
180	0	if (activated == NULL)
181	0	return 0;
182
183	0	max = sk_OSSL_PROVIDER_num(activated);
184	0	for (i = 0; i < max; i++) {
185	0	OSSL_PROVIDER *tstprov = sk_OSSL_PROVIDER_value(activated, i);
186
187	0	if (strcmp(OSSL_PROVIDER_get0_name(tstprov), name) == 0) {
188	0	return 1;
189	0	}
190	0	}
191
192	0	return 0;
193	0	}
194
195		/*
196		* Attempt to activate a provider
197		* Returns:
198		* 1 on successful activation
199		* 0 on failed activation for non-fatal error
200		* < 0 on failed activation for fatal errors
201		*/
202		static int provider_conf_activate(OSSL_LIB_CTX libctx, const char name,
203		const char value, const char path,
204		int soft, const CONF *cnf)
205	0	{
206	0	PROVIDER_CONF_GLOBAL *pcgbl
207	0	= ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_CONF_INDEX);
208	0	OSSL_PROVIDER prov = NULL, actual = NULL;
209	0	int ok = 0;
210
211	0	if (pcgbl == NULL \|\| !CRYPTO_THREAD_write_lock(pcgbl->lock)) {
212	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
213	0	return -1;
214	0	}
215	0	if (!prov_already_activated(name, pcgbl->activated_providers)) {
216		/*
217		* There is an attempt to activate a provider, so we should disable
218		* loading of fallbacks. Otherwise a misconfiguration could mean the
219		* intended provider does not get loaded. Subsequent fetches could
220		* then fallback to the default provider - which may be the wrong
221		* thing.
222		*/
223	0	if (!ossl_provider_disable_fallback_loading(libctx)) {
224	0	CRYPTO_THREAD_unlock(pcgbl->lock);
225	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
226	0	return -1;
227	0	}
228	0	prov = ossl_provider_find(libctx, name, 1);
229	0	if (prov == NULL)
230	0	prov = ossl_provider_new(libctx, name, NULL, NULL, 1);
231	0	if (prov == NULL) {
232	0	CRYPTO_THREAD_unlock(pcgbl->lock);
233	0	if (soft)
234	0	ERR_clear_error();
235	0	return (soft == 0) ? -1 : 0;
236	0	}
237
238	0	if (path != NULL)
239	0	ossl_provider_set_module_path(prov, path);
240
241	0	ok = provider_conf_params(prov, NULL, NULL, value, cnf);
242
243	0	if (ok == 1) {
244	0	if (!ossl_provider_activate(prov, 1, 0)) {
245	0	ok = 0;
246	0	} else if (!ossl_provider_add_to_store(prov, &actual, 0)) {
247	0	ossl_provider_deactivate(prov, 1);
248	0	ok = 0;
249	0	} else if (actual != prov
250	0	&& !ossl_provider_activate(actual, 1, 0)) {
251	0	ossl_provider_free(actual);
252	0	ok = 0;
253	0	} else {
254	0	if (pcgbl->activated_providers == NULL)
255	0	pcgbl->activated_providers = sk_OSSL_PROVIDER_new_null();
256	0	if (pcgbl->activated_providers == NULL
257	0	\|\| !sk_OSSL_PROVIDER_push(pcgbl->activated_providers,
258	0	actual)) {
259	0	ossl_provider_deactivate(actual, 1);
260	0	ossl_provider_free(actual);
261	0	ok = 0;
262	0	} else {
263	0	ok = 1;
264	0	}
265	0	}
266	0	}
267
268	0	if (ok <= 0)
269	0	ossl_provider_free(prov);
270	0	}
271	0	CRYPTO_THREAD_unlock(pcgbl->lock);
272
273	0	return ok;
274	0	}
275
276		static int provider_conf_parse_bool_setting(const char *confname,
277		const char confvalue, int val)
278	0	{
279	0	if (!ossl_conf_parse_bool(confvalue, val)) {
280	0	ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR,
281	0	"directive %s set to unrecognized value",
282	0	confname);
283	0	return 0;
284	0	}
285
286	0	return 1;
287	0	}
288
289		static int provider_conf_load(OSSL_LIB_CTX libctx, const char name,
290		const char value, const CONF cnf)
291	0	{
292	0	int i;
293	0	STACK_OF(CONF_VALUE) *ecmds;
294	0	int soft = 0;
295	0	const char *path = NULL;
296	0	int activate = 0;
297	0	int ok = 0;
298	0	int added = 0;
299
300	0	name = skip_dot(name);
301	0	OSSL_TRACE1(CONF, "Configuring provider %s\n", name);
302		/* Value is a section containing PROVIDER commands */
303	0	ecmds = NCONF_get_section(cnf, value);
304
305	0	if (!ecmds) {
306	0	ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR,
307	0	"section=%s not found", value);
308	0	return 0;
309	0	}
310
311		/* Find the needed data first */
312	0	for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) {
313	0	CONF_VALUE *ecmd = sk_CONF_VALUE_value(ecmds, i);
314	0	const char *confname = skip_dot(ecmd->name);
315	0	const char *confvalue = ecmd->value;
316
317	0	OSSL_TRACE2(CONF, "Provider command: %s = %s\n",
318	0	confname, confvalue);
319
320		/* First handle some special pseudo confs */
321
322		/* Override provider name to use */
323	0	if (strcmp(confname, "identity") == 0) {
324	0	name = confvalue;
325	0	} else if (strcmp(confname, "soft_load") == 0) {
326	0	if (!provider_conf_parse_bool_setting(confname,
327	0	confvalue, &soft))
328	0	return 0;
329		/* Load a dynamic PROVIDER */
330	0	} else if (strcmp(confname, "module") == 0) {
331	0	path = confvalue;
332	0	} else if (strcmp(confname, "activate") == 0) {
333	0	if (!provider_conf_parse_bool_setting(confname,
334	0	confvalue, &activate))
335	0	return 0;
336	0	}
337	0	}
338
339	0	if (activate) {
340	0	ok = provider_conf_activate(libctx, name, value, path, soft, cnf);
341	0	} else {
342	0	OSSL_PROVIDER_INFO entry;
343
344	0	memset(&entry, 0, sizeof(entry));
345	0	ok = 1;
346	0	if (name != NULL) {
347	0	entry.name = OPENSSL_strdup(name);
348	0	if (entry.name == NULL)
349	0	ok = 0;
350	0	}
351	0	if (ok && path != NULL) {
352	0	entry.path = OPENSSL_strdup(path);
353	0	if (entry.path == NULL)
354	0	ok = 0;
355	0	}
356	0	if (ok)
357	0	ok = provider_conf_params(NULL, &entry, NULL, value, cnf);
358	0	if (ok >= 1 && (entry.path != NULL \|\| entry.parameters != NULL)) {
359	0	ok = ossl_provider_info_add_to_store(libctx, &entry);
360	0	added = ok;
361	0	}
362	0	if (added == 0)
363	0	ossl_provider_info_clear(&entry);
364	0	}
365
366		/*
367		* Provider activation returns a tristate:
368		* 1 for successful activation
369		* 0 for non-fatal activation failure
370		* < 0 for fatal activation failure
371		* We return success (1) for activation, (1) for non-fatal activation
372		* failure, and (0) for fatal activation failure
373		*/
374	0	return ok >= 0;
375	0	}
376
377		static int provider_conf_init(CONF_IMODULE md, const CONF cnf)
378	0	{
379	0	STACK_OF(CONF_VALUE) *elist;
380	0	CONF_VALUE *cval;
381	0	int i;
382
383	0	OSSL_TRACE1(CONF, "Loading providers module: section %s\n",
384	0	CONF_imodule_get_value(md));
385
386		/* Value is a section containing PROVIDERs to configure */
387	0	elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));
388
389	0	if (!elist) {
390	0	ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR);
391	0	return 0;
392	0	}
393
394	0	for (i = 0; i < sk_CONF_VALUE_num(elist); i++) {
395	0	cval = sk_CONF_VALUE_value(elist, i);
396	0	if (!provider_conf_load(NCONF_get0_libctx((CONF *)cnf),
397	0	cval->name, cval->value, cnf))
398	0	return 0;
399	0	}
400
401	0	return 1;
402	0	}
403
404		void ossl_provider_add_conf_module(void)
405	0	{
406	0	OSSL_TRACE(CONF, "Adding config module 'providers'\n");
407		CONF_module_add("providers", provider_conf_init, NULL);
408	0	}