/src/openssl30/crypto/provider_conf.c

Source (jump to first uncovered line)
/*
 * Copyright 2019-2021 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
 */

#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 "provider_local.h"

DEFINE_STACK_OF(OSSL_PROVIDER)

/* PROVIDER config module */

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

static void *prov_conf_ossl_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;
}

static void prov_conf_ossl_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 OSSL_LIB_CTX_METHOD provider_conf_ossl_ctx_method = {
    /* Must be freed before the provider store is freed */
    OSSL_LIB_CTX_METHOD_PRIORITY_2,
    prov_conf_ossl_ctx_new,
    prov_conf_ossl_ctx_free,
};

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_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;
}

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;
    OSSL_PROVIDER *prov = NULL, *actual = NULL;
    const char *path = NULL;
    long 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)
            soft = 1;
        /* Load a dynamic PROVIDER */
        else if (strcmp(confname, "module") == 0)
            path = confvalue;
        else if (strcmp(confname, "activate") == 0)
            activate = 1;
    }

    if (activate) {
        PROVIDER_CONF_GLOBAL *pcgbl
            = ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_CONF_INDEX,
                                    &provider_conf_ossl_ctx_method);

        if (pcgbl == NULL || !CRYPTO_THREAD_write_lock(pcgbl->lock)) {
            ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
            return 0;
        }
        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 0;
            }
            prov = ossl_provider_find(libctx, name, 1);
            if (prov == NULL)
                prov = ossl_provider_new(libctx, name, NULL, 1);
            if (prov == NULL) {
                CRYPTO_THREAD_unlock(pcgbl->lock);
                if (soft)
                    ERR_clear_error();
                return 0;
            }

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

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

            if (ok > 0) {
                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);
    } else {
        OSSL_PROVIDER_INFO entry;

        memset(&entry, 0, sizeof(entry));
        ok = 1;
        if (name != NULL) {
            entry.name = OPENSSL_strdup(name);
            if (entry.name == NULL) {
                ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
                ok = 0;
            }
        }
        if (ok && path != NULL) {
            entry.path = OPENSSL_strdup(path);
            if (entry.path == NULL) {
                ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
                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: 2025-06-13 06:58

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2019-2021 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 "provider_local.h"
19
20		DEFINE_STACK_OF(OSSL_PROVIDER)
21
22		/* PROVIDER config module */
23
24		typedef struct {
25		CRYPTO_RWLOCK *lock;
26		STACK_OF(OSSL_PROVIDER) *activated_providers;
27		} PROVIDER_CONF_GLOBAL;
28
29		static void prov_conf_ossl_ctx_new(OSSL_LIB_CTX libctx)
30	0	{
31	0	PROVIDER_CONF_GLOBAL pcgbl = OPENSSL_zalloc(sizeof(pcgbl));
32
33	0	if (pcgbl == NULL)
34	0	return NULL;
35
36	0	pcgbl->lock = CRYPTO_THREAD_lock_new();
37	0	if (pcgbl->lock == NULL) {
38	0	OPENSSL_free(pcgbl);
39	0	return NULL;
40	0	}
41
42	0	return pcgbl;
43	0	}
44
45		static void prov_conf_ossl_ctx_free(void *vpcgbl)
46	0	{
47	0	PROVIDER_CONF_GLOBAL *pcgbl = vpcgbl;
48
49	0	sk_OSSL_PROVIDER_pop_free(pcgbl->activated_providers,
50	0	ossl_provider_free);
51
52	0	OSSL_TRACE(CONF, "Cleaned up providers\n");
53	0	CRYPTO_THREAD_lock_free(pcgbl->lock);
54	0	OPENSSL_free(pcgbl);
55	0	}
56
57		static const OSSL_LIB_CTX_METHOD provider_conf_ossl_ctx_method = {
58		/* Must be freed before the provider store is freed */
59		OSSL_LIB_CTX_METHOD_PRIORITY_2,
60		prov_conf_ossl_ctx_new,
61		prov_conf_ossl_ctx_free,
62		};
63
64		static const char skip_dot(const char name)
65	0	{
66	0	const char *p = strchr(name, '.');
67
68	0	if (p != NULL)
69	0	return p + 1;
70	0	return name;
71	0	}
72
73		/*
74		* Parse the provider params section
75		* Returns:
76		* 1 for success
77		* 0 for non-fatal errors
78		* < 0 for fatal errors
79		*/
80		static int provider_conf_params_internal(OSSL_PROVIDER *prov,
81		OSSL_PROVIDER_INFO *provinfo,
82		const char name, const char value,
83		const CONF *cnf,
84		STACK_OF(OPENSSL_CSTRING) *visited)
85	0	{
86	0	STACK_OF(CONF_VALUE) *sect;
87	0	int ok = 1;
88	0	int rc = 0;
89
90	0	sect = NCONF_get_section(cnf, value);
91	0	if (sect != NULL) {
92	0	int i;
93	0	char buffer[512];
94	0	size_t buffer_len = 0;
95
96	0	OSSL_TRACE1(CONF, "Provider params: start section %s\n", value);
97
98		/*
99		* Check to see if the provided section value has already
100		* been visited. If it has, then we have a recursive lookup
101		* in the configuration which isn't valid. As such we should error
102		* out
103		*/
104	0	for (i = 0; i < sk_OPENSSL_CSTRING_num(visited); i++) {
105	0	if (sk_OPENSSL_CSTRING_value(visited, i) == value) {
106	0	ERR_raise(ERR_LIB_CONF, CONF_R_RECURSIVE_SECTION_REFERENCE);
107	0	return -1;
108	0	}
109	0	}
110
111		/*
112		* We've not visited this node yet, so record it on the stack
113		*/
114	0	if (!sk_OPENSSL_CSTRING_push(visited, value))
115	0	return -1;
116
117	0	if (name != NULL) {
118	0	OPENSSL_strlcpy(buffer, name, sizeof(buffer));
119	0	OPENSSL_strlcat(buffer, ".", sizeof(buffer));
120	0	buffer_len = strlen(buffer);
121	0	}
122
123	0	for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
124	0	CONF_VALUE *sectconf = sk_CONF_VALUE_value(sect, i);
125
126	0	if (buffer_len + strlen(sectconf->name) >= sizeof(buffer)) {
127	0	sk_OPENSSL_CSTRING_pop(visited);
128	0	return -1;
129	0	}
130	0	buffer[buffer_len] = '\0';
131	0	OPENSSL_strlcat(buffer, sectconf->name, sizeof(buffer));
132	0	rc = provider_conf_params_internal(prov, provinfo, buffer,
133	0	sectconf->value, cnf, visited);
134	0	if (rc < 0) {
135	0	sk_OPENSSL_CSTRING_pop(visited);
136	0	return rc;
137	0	}
138	0	}
139	0	sk_OPENSSL_CSTRING_pop(visited);
140
141	0	OSSL_TRACE1(CONF, "Provider params: finish section %s\n", value);
142	0	} else {
143	0	OSSL_TRACE2(CONF, "Provider params: %s = %s\n", name, value);
144	0	if (prov != NULL)
145	0	ok = ossl_provider_add_parameter(prov, name, value);
146	0	else
147	0	ok = ossl_provider_info_add_parameter(provinfo, name, value);
148	0	}
149
150	0	return ok;
151	0	}
152
153		/*
154		* recursively parse the provider configuration section
155		* of the config file.
156		* Returns
157		* 1 on success
158		* 0 on non-fatal error
159		* < 0 on fatal errors
160		*/
161		static int provider_conf_params(OSSL_PROVIDER *prov,
162		OSSL_PROVIDER_INFO *provinfo,
163		const char name, const char value,
164		const CONF *cnf)
165	0	{
166	0	int rc;
167	0	STACK_OF(OPENSSL_CSTRING) *visited = sk_OPENSSL_CSTRING_new_null();
168
169	0	if (visited == NULL)
170	0	return -1;
171
172	0	rc = provider_conf_params_internal(prov, provinfo, name,
173	0	value, cnf, visited);
174
175	0	sk_OPENSSL_CSTRING_free(visited);
176
177	0	return rc;
178	0	}
179
180		static int prov_already_activated(const char *name,
181		STACK_OF(OSSL_PROVIDER) *activated)
182	0	{
183	0	int i, max;
184
185	0	if (activated == NULL)
186	0	return 0;
187
188	0	max = sk_OSSL_PROVIDER_num(activated);
189	0	for (i = 0; i < max; i++) {
190	0	OSSL_PROVIDER *tstprov = sk_OSSL_PROVIDER_value(activated, i);
191
192	0	if (strcmp(OSSL_PROVIDER_get0_name(tstprov), name) == 0) {
193	0	return 1;
194	0	}
195	0	}
196
197	0	return 0;
198	0	}
199
200		static int provider_conf_load(OSSL_LIB_CTX libctx, const char name,
201		const char value, const CONF cnf)
202	0	{
203	0	int i;
204	0	STACK_OF(CONF_VALUE) *ecmds;
205	0	int soft = 0;
206	0	OSSL_PROVIDER prov = NULL, actual = NULL;
207	0	const char *path = NULL;
208	0	long activate = 0;
209	0	int ok = 0;
210	0	int added = 0;
211
212	0	name = skip_dot(name);
213	0	OSSL_TRACE1(CONF, "Configuring provider %s\n", name);
214		/* Value is a section containing PROVIDER commands */
215	0	ecmds = NCONF_get_section(cnf, value);
216
217	0	if (!ecmds) {
218	0	ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR,
219	0	"section=%s not found", value);
220	0	return 0;
221	0	}
222
223		/* Find the needed data first */
224	0	for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) {
225	0	CONF_VALUE *ecmd = sk_CONF_VALUE_value(ecmds, i);
226	0	const char *confname = skip_dot(ecmd->name);
227	0	const char *confvalue = ecmd->value;
228
229	0	OSSL_TRACE2(CONF, "Provider command: %s = %s\n",
230	0	confname, confvalue);
231
232		/* First handle some special pseudo confs */
233
234		/* Override provider name to use */
235	0	if (strcmp(confname, "identity") == 0)
236	0	name = confvalue;
237	0	else if (strcmp(confname, "soft_load") == 0)
238	0	soft = 1;
239		/* Load a dynamic PROVIDER */
240	0	else if (strcmp(confname, "module") == 0)
241	0	path = confvalue;
242	0	else if (strcmp(confname, "activate") == 0)
243	0	activate = 1;
244	0	}
245
246	0	if (activate) {
247	0	PROVIDER_CONF_GLOBAL *pcgbl
248	0	= ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_PROVIDER_CONF_INDEX,
249	0	&provider_conf_ossl_ctx_method);
250
251	0	if (pcgbl == NULL \|\| !CRYPTO_THREAD_write_lock(pcgbl->lock)) {
252	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
253	0	return 0;
254	0	}
255	0	if (!prov_already_activated(name, pcgbl->activated_providers)) {
256		/*
257		* There is an attempt to activate a provider, so we should disable
258		* loading of fallbacks. Otherwise a misconfiguration could mean the
259		* intended provider does not get loaded. Subsequent fetches could
260		* then fallback to the default provider - which may be the wrong
261		* thing.
262		*/
263	0	if (!ossl_provider_disable_fallback_loading(libctx)) {
264	0	CRYPTO_THREAD_unlock(pcgbl->lock);
265	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR);
266	0	return 0;
267	0	}
268	0	prov = ossl_provider_find(libctx, name, 1);
269	0	if (prov == NULL)
270	0	prov = ossl_provider_new(libctx, name, NULL, 1);
271	0	if (prov == NULL) {
272	0	CRYPTO_THREAD_unlock(pcgbl->lock);
273	0	if (soft)
274	0	ERR_clear_error();
275	0	return 0;
276	0	}
277
278	0	if (path != NULL)
279	0	ossl_provider_set_module_path(prov, path);
280
281	0	ok = provider_conf_params(prov, NULL, NULL, value, cnf);
282
283	0	if (ok > 0) {
284	0	if (!ossl_provider_activate(prov, 1, 0)) {
285	0	ok = 0;
286	0	} else if (!ossl_provider_add_to_store(prov, &actual, 0)) {
287	0	ossl_provider_deactivate(prov, 1);
288	0	ok = 0;
289	0	} else if (actual != prov
290	0	&& !ossl_provider_activate(actual, 1, 0)) {
291	0	ossl_provider_free(actual);
292	0	ok = 0;
293	0	} else {
294	0	if (pcgbl->activated_providers == NULL)
295	0	pcgbl->activated_providers = sk_OSSL_PROVIDER_new_null();
296	0	if (pcgbl->activated_providers == NULL
297	0	\|\| !sk_OSSL_PROVIDER_push(pcgbl->activated_providers,
298	0	actual)) {
299	0	ossl_provider_deactivate(actual, 1);
300	0	ossl_provider_free(actual);
301	0	ok = 0;
302	0	} else {
303	0	ok = 1;
304	0	}
305	0	}
306	0	}
307	0	if (ok <= 0)
308	0	ossl_provider_free(prov);
309	0	}
310	0	CRYPTO_THREAD_unlock(pcgbl->lock);
311	0	} else {
312	0	OSSL_PROVIDER_INFO entry;
313
314	0	memset(&entry, 0, sizeof(entry));
315	0	ok = 1;
316	0	if (name != NULL) {
317	0	entry.name = OPENSSL_strdup(name);
318	0	if (entry.name == NULL) {
319	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
320	0	ok = 0;
321	0	}
322	0	}
323	0	if (ok && path != NULL) {
324	0	entry.path = OPENSSL_strdup(path);
325	0	if (entry.path == NULL) {
326	0	ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
327	0	ok = 0;
328	0	}
329	0	}
330	0	if (ok)
331	0	ok = provider_conf_params(NULL, &entry, NULL, value, cnf);
332	0	if (ok >= 1 && (entry.path != NULL \|\| entry.parameters != NULL)) {
333	0	ok = ossl_provider_info_add_to_store(libctx, &entry);
334	0	added = ok;
335	0	}
336	0	if (added == 0)
337	0	ossl_provider_info_clear(&entry);
338	0	}
339
340		/*
341		* Provider activation returns a tristate:
342		* 1 for successful activation
343		* 0 for non-fatal activation failure
344		* < 0 for fatal activation failure
345		* We return success (1) for activation, (1) for non-fatal activation
346		* failure, and (0) for fatal activation failure
347		*/
348	0	return ok >= 0;
349	0	}
350
351		static int provider_conf_init(CONF_IMODULE md, const CONF cnf)
352	0	{
353	0	STACK_OF(CONF_VALUE) *elist;
354	0	CONF_VALUE *cval;
355	0	int i;
356
357	0	OSSL_TRACE1(CONF, "Loading providers module: section %s\n",
358	0	CONF_imodule_get_value(md));
359
360		/* Value is a section containing PROVIDERs to configure */
361	0	elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));
362
363	0	if (!elist) {
364	0	ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_PROVIDER_SECTION_ERROR);
365	0	return 0;
366	0	}
367
368	0	for (i = 0; i < sk_CONF_VALUE_num(elist); i++) {
369	0	cval = sk_CONF_VALUE_value(elist, i);
370	0	if (!provider_conf_load(NCONF_get0_libctx((CONF *)cnf),
371	0	cval->name, cval->value, cnf))
372	0	return 0;
373	0	}
374
375	0	return 1;
376	0	}
377
378		void ossl_provider_add_conf_module(void)
379	0	{
380	0	OSSL_TRACE(CONF, "Adding config module 'providers'\n");
381	0	CONF_module_add("providers", provider_conf_init, NULL);
382	0	}