/src/openssl/crypto/x509/by_file.c

Source
/*
 * Copyright 1995-2025 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 <time.h>
#include <errno.h>

#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include "x509_local.h"

#include <crypto/asn1.h>

static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
    long argl, char **ret);
static int by_file_ctrl_ex(X509_LOOKUP *ctx, int cmd, const char *argc,
    long argl, char **ret, OSSL_LIB_CTX *libctx,
    const char *propq);

static X509_LOOKUP_METHOD x509_file_lookup = {
    "Load file into cache",
    NULL, /* new_item */
    NULL, /* free */
    NULL, /* init */
    NULL, /* shutdown */
    by_file_ctrl, /* ctrl */
    NULL, /* get_by_subject */
    NULL, /* get_by_issuer_serial */
    NULL, /* get_by_fingerprint */
    NULL, /* get_by_alias */
    NULL, /* get_by_subject_ex */
    by_file_ctrl_ex, /* ctrl_ex */
};

X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
{
    return &x509_file_lookup;
}

static int by_file_ctrl_ex(X509_LOOKUP *ctx, int cmd, const char *argp,
    long argl, char **ret, OSSL_LIB_CTX *libctx,
    const char *propq)
{
    int ok = 0;
    const char *file;

    switch (cmd) {
    case X509_L_FILE_LOAD:
        if (argl == X509_FILETYPE_DEFAULT) {
            file = ossl_safe_getenv(X509_get_default_cert_file_env());
            if (file)
                ok = (X509_load_cert_crl_file_ex(ctx, file, X509_FILETYPE_PEM,
                          libctx, propq)
                    != 0);
            else
                ok = (X509_load_cert_crl_file_ex(
                          ctx, X509_get_default_cert_file(),
                          X509_FILETYPE_PEM, libctx, propq)
                    != 0);

            if (!ok)
                ERR_raise(ERR_LIB_X509, X509_R_LOADING_DEFAULTS);
        } else {
            if (argl == X509_FILETYPE_PEM)
                ok = (X509_load_cert_crl_file_ex(ctx, argp, X509_FILETYPE_PEM,
                          libctx, propq)
                    != 0);
            else
                ok = (X509_load_cert_file_ex(ctx, argp, (int)argl, libctx,
                          propq)
                    != 0);
        }
        break;
    }
    return ok;
}

static int by_file_ctrl(X509_LOOKUP *ctx, int cmd,
    const char *argp, long argl, char **ret)
{
    return by_file_ctrl_ex(ctx, cmd, argp, argl, ret, NULL, NULL);
}

int X509_load_cert_file_ex(X509_LOOKUP *ctx, const char *file, int type,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    BIO *in = NULL;
    int count = 0;
    X509 *x = NULL;

    if (file == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        goto err;
    }

    in = BIO_new(BIO_s_file());

    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
        ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
        goto err;
    }

    x = X509_new_ex(libctx, propq);
    if (x == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
        goto err;
    }

    if (type == X509_FILETYPE_PEM) {
        for (;;) {
            ERR_set_mark();
            if (PEM_read_bio_X509_AUX(in, &x, NULL, "") == NULL) {
                if ((ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) && (count > 0)) {
                    ERR_pop_to_mark();
                    break;
                } else {
                    ERR_clear_last_mark();
                    if (count == 0) {
                        ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_FOUND);
                    } else {
                        ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
                        count = 0;
                    }
                    goto err;
                }
            }
            ERR_clear_last_mark();
            if (!X509_STORE_add_cert(ctx->store_ctx, x)) {
                count = 0;
                goto err;
            }
            /*
             * X509_STORE_add_cert() added a reference rather than a copy,
             * so we need a fresh X509 object.
             */
            X509_free(x);
            x = X509_new_ex(libctx, propq);
            if (x == NULL) {
                ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
                count = 0;
                goto err;
            }
            count++;
        }
    } else if (type == X509_FILETYPE_ASN1) {
        if (d2i_X509_bio(in, &x) == NULL) {
            ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_FOUND);
            goto err;
        }
        count = X509_STORE_add_cert(ctx->store_ctx, x);
    } else {
        ERR_raise(ERR_LIB_X509, X509_R_BAD_X509_FILETYPE);
        goto err;
    }
err:
    X509_free(x);
    BIO_free(in);
    return count;
}

int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
{
    return X509_load_cert_file_ex(ctx, file, type, NULL, NULL);
}

int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
{
    BIO *in = NULL;
    int count = 0;
    X509_CRL *x = NULL;

    if (file == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
        goto err;
    }

    in = BIO_new(BIO_s_file());

    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
        ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
        goto err;
    }

    if (type == X509_FILETYPE_PEM) {
        for (;;) {
            x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
            if (x == NULL) {
                if ((ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) && (count > 0)) {
                    ERR_clear_error();
                    break;
                } else {
                    if (count == 0) {
                        ERR_raise(ERR_LIB_X509, X509_R_NO_CRL_FOUND);
                    } else {
                        ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
                        count = 0;
                    }
                    goto err;
                }
            }
            if (!X509_STORE_add_crl(ctx->store_ctx, x)) {
                count = 0;
                goto err;
            }
            count++;
            X509_CRL_free(x);
            x = NULL;
        }
    } else if (type == X509_FILETYPE_ASN1) {
        x = d2i_X509_CRL_bio(in, NULL);
        if (x == NULL) {
            ERR_raise(ERR_LIB_X509, X509_R_NO_CRL_FOUND);
            goto err;
        }
        count = X509_STORE_add_crl(ctx->store_ctx, x);
    } else {
        ERR_raise(ERR_LIB_X509, X509_R_BAD_X509_FILETYPE);
        goto err;
    }
err:
    X509_CRL_free(x);
    BIO_free(in);
    return count;
}

int X509_load_cert_crl_file_ex(X509_LOOKUP *ctx, const char *file, int type,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    STACK_OF(X509_INFO) *inf = NULL;
    X509_INFO *itmp = NULL;
    BIO *in = NULL;
    int i, count = 0;

    if (type != X509_FILETYPE_PEM)
        return X509_load_cert_file_ex(ctx, file, type, libctx, propq);
#if defined(OPENSSL_SYS_WINDOWS)
    in = BIO_new_file(file, "rb");
#else
    in = BIO_new_file(file, "r");
#endif
    if (in == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
        return 0;
    }
    inf = PEM_X509_INFO_read_bio_ex(in, NULL, NULL, "", libctx, propq);
    BIO_free(in);
    if (inf == NULL) {
        ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
        return 0;
    }
    for (i = 0; i < sk_X509_INFO_num(inf); i++) {
        itmp = sk_X509_INFO_value(inf, i);
        if (itmp->x509) {
            if (!X509_STORE_add_cert(ctx->store_ctx, itmp->x509)) {
                count = 0;
                goto err;
            }
            count++;
        }
        if (itmp->crl) {
            if (!X509_STORE_add_crl(ctx->store_ctx, itmp->crl)) {
                count = 0;
                goto err;
            }
            count++;
        }
    }
    if (count == 0)
        ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
err:
    sk_X509_INFO_pop_free(inf, X509_INFO_free);
    return count;
}

int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
{
    return X509_load_cert_crl_file_ex(ctx, file, type, NULL, NULL);
}

Coverage Report

Created: 2026-03-09 06:55

Line	Count	Source
1		/*
2		* Copyright 1995-2025 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		#include <time.h>
12		#include <errno.h>
13
14		#include "internal/cryptlib.h"
15		#include <openssl/buffer.h>
16		#include <openssl/x509.h>
17		#include <openssl/pem.h>
18		#include "x509_local.h"
19
20		#include <crypto/asn1.h>
21
22		static int by_file_ctrl(X509_LOOKUP ctx, int cmd, const char argc,
23		long argl, char **ret);
24		static int by_file_ctrl_ex(X509_LOOKUP ctx, int cmd, const char argc,
25		long argl, char *ret, OSSL_LIB_CTX libctx,
26		const char *propq);
27
28		static X509_LOOKUP_METHOD x509_file_lookup = {
29		"Load file into cache",
30		NULL, /* new_item */
31		NULL, /* free */
32		NULL, /* init */
33		NULL, /* shutdown */
34		by_file_ctrl, /* ctrl */
35		NULL, /* get_by_subject */
36		NULL, /* get_by_issuer_serial */
37		NULL, /* get_by_fingerprint */
38		NULL, /* get_by_alias */
39		NULL, /* get_by_subject_ex */
40		by_file_ctrl_ex, /* ctrl_ex */
41		};
42
43		X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
44	0	{
45	0	return &x509_file_lookup;
46	0	}
47
48		static int by_file_ctrl_ex(X509_LOOKUP ctx, int cmd, const char argp,
49		long argl, char *ret, OSSL_LIB_CTX libctx,
50		const char *propq)
51	0	{
52	0	int ok = 0;
53	0	const char *file;
54
55	0	switch (cmd) {
56	0	case X509_L_FILE_LOAD:
57	0	if (argl == X509_FILETYPE_DEFAULT) {
58	0	file = ossl_safe_getenv(X509_get_default_cert_file_env());
59	0	if (file)
60	0	ok = (X509_load_cert_crl_file_ex(ctx, file, X509_FILETYPE_PEM,
61	0	libctx, propq)
62	0	!= 0);
63	0	else
64	0	ok = (X509_load_cert_crl_file_ex(
65	0	ctx, X509_get_default_cert_file(),
66	0	X509_FILETYPE_PEM, libctx, propq)
67	0	!= 0);
68
69	0	if (!ok)
70	0	ERR_raise(ERR_LIB_X509, X509_R_LOADING_DEFAULTS);
71	0	} else {
72	0	if (argl == X509_FILETYPE_PEM)
73	0	ok = (X509_load_cert_crl_file_ex(ctx, argp, X509_FILETYPE_PEM,
74	0	libctx, propq)
75	0	!= 0);
76	0	else
77	0	ok = (X509_load_cert_file_ex(ctx, argp, (int)argl, libctx,
78	0	propq)
79	0	!= 0);
80	0	}
81	0	break;
82	0	}
83	0	return ok;
84	0	}
85
86		static int by_file_ctrl(X509_LOOKUP *ctx, int cmd,
87		const char argp, long argl, char *ret)
88	0	{
89	0	return by_file_ctrl_ex(ctx, cmd, argp, argl, ret, NULL, NULL);
90	0	}
91
92		int X509_load_cert_file_ex(X509_LOOKUP ctx, const char file, int type,
93		OSSL_LIB_CTX libctx, const char propq)
94	0	{
95	0	BIO *in = NULL;
96	0	int count = 0;
97	0	X509 *x = NULL;
98
99	0	if (file == NULL) {
100	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
101	0	goto err;
102	0	}
103
104	0	in = BIO_new(BIO_s_file());
105
106	0	if ((in == NULL) \|\| (BIO_read_filename(in, file) <= 0)) {
107	0	ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
108	0	goto err;
109	0	}
110
111	0	x = X509_new_ex(libctx, propq);
112	0	if (x == NULL) {
113	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
114	0	goto err;
115	0	}
116
117	0	if (type == X509_FILETYPE_PEM) {
118	0	for (;;) {
119	0	ERR_set_mark();
120	0	if (PEM_read_bio_X509_AUX(in, &x, NULL, "") == NULL) {
121	0	if ((ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) && (count > 0)) {
122	0	ERR_pop_to_mark();
123	0	break;
124	0	} else {
125	0	ERR_clear_last_mark();
126	0	if (count == 0) {
127	0	ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_FOUND);
128	0	} else {
129	0	ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
130	0	count = 0;
131	0	}
132	0	goto err;
133	0	}
134	0	}
135	0	ERR_clear_last_mark();
136	0	if (!X509_STORE_add_cert(ctx->store_ctx, x)) {
137	0	count = 0;
138	0	goto err;
139	0	}
140		/*
141		* X509_STORE_add_cert() added a reference rather than a copy,
142		* so we need a fresh X509 object.
143		*/
144	0	X509_free(x);
145	0	x = X509_new_ex(libctx, propq);
146	0	if (x == NULL) {
147	0	ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
148	0	count = 0;
149	0	goto err;
150	0	}
151	0	count++;
152	0	}
153	0	} else if (type == X509_FILETYPE_ASN1) {
154	0	if (d2i_X509_bio(in, &x) == NULL) {
155	0	ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_FOUND);
156	0	goto err;
157	0	}
158	0	count = X509_STORE_add_cert(ctx->store_ctx, x);
159	0	} else {
160	0	ERR_raise(ERR_LIB_X509, X509_R_BAD_X509_FILETYPE);
161	0	goto err;
162	0	}
163	0	err:
164	0	X509_free(x);
165	0	BIO_free(in);
166	0	return count;
167	0	}
168
169		int X509_load_cert_file(X509_LOOKUP ctx, const char file, int type)
170	0	{
171	0	return X509_load_cert_file_ex(ctx, file, type, NULL, NULL);
172	0	}
173
174		int X509_load_crl_file(X509_LOOKUP ctx, const char file, int type)
175	0	{
176	0	BIO *in = NULL;
177	0	int count = 0;
178	0	X509_CRL *x = NULL;
179
180	0	if (file == NULL) {
181	0	ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
182	0	goto err;
183	0	}
184
185	0	in = BIO_new(BIO_s_file());
186
187	0	if ((in == NULL) \|\| (BIO_read_filename(in, file) <= 0)) {
188	0	ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
189	0	goto err;
190	0	}
191
192	0	if (type == X509_FILETYPE_PEM) {
193	0	for (;;) {
194	0	x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
195	0	if (x == NULL) {
196	0	if ((ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) && (count > 0)) {
197	0	ERR_clear_error();
198	0	break;
199	0	} else {
200	0	if (count == 0) {
201	0	ERR_raise(ERR_LIB_X509, X509_R_NO_CRL_FOUND);
202	0	} else {
203	0	ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
204	0	count = 0;
205	0	}
206	0	goto err;
207	0	}
208	0	}
209	0	if (!X509_STORE_add_crl(ctx->store_ctx, x)) {
210	0	count = 0;
211	0	goto err;
212	0	}
213	0	count++;
214	0	X509_CRL_free(x);
215	0	x = NULL;
216	0	}
217	0	} else if (type == X509_FILETYPE_ASN1) {
218	0	x = d2i_X509_CRL_bio(in, NULL);
219	0	if (x == NULL) {
220	0	ERR_raise(ERR_LIB_X509, X509_R_NO_CRL_FOUND);
221	0	goto err;
222	0	}
223	0	count = X509_STORE_add_crl(ctx->store_ctx, x);
224	0	} else {
225	0	ERR_raise(ERR_LIB_X509, X509_R_BAD_X509_FILETYPE);
226	0	goto err;
227	0	}
228	0	err:
229	0	X509_CRL_free(x);
230	0	BIO_free(in);
231	0	return count;
232	0	}
233
234		int X509_load_cert_crl_file_ex(X509_LOOKUP ctx, const char file, int type,
235		OSSL_LIB_CTX libctx, const char propq)
236	0	{
237	0	STACK_OF(X509_INFO) *inf = NULL;
238	0	X509_INFO *itmp = NULL;
239	0	BIO *in = NULL;
240	0	int i, count = 0;
241
242	0	if (type != X509_FILETYPE_PEM)
243	0	return X509_load_cert_file_ex(ctx, file, type, libctx, propq);
244		#if defined(OPENSSL_SYS_WINDOWS)
245		in = BIO_new_file(file, "rb");
246		#else
247	0	in = BIO_new_file(file, "r");
248	0	#endif
249	0	if (in == NULL) {
250	0	ERR_raise(ERR_LIB_X509, ERR_R_BIO_LIB);
251	0	return 0;
252	0	}
253	0	inf = PEM_X509_INFO_read_bio_ex(in, NULL, NULL, "", libctx, propq);
254	0	BIO_free(in);
255	0	if (inf == NULL) {
256	0	ERR_raise(ERR_LIB_X509, ERR_R_PEM_LIB);
257	0	return 0;
258	0	}
259	0	for (i = 0; i < sk_X509_INFO_num(inf); i++) {
260	0	itmp = sk_X509_INFO_value(inf, i);
261	0	if (itmp->x509) {
262	0	if (!X509_STORE_add_cert(ctx->store_ctx, itmp->x509)) {
263	0	count = 0;
264	0	goto err;
265	0	}
266	0	count++;
267	0	}
268	0	if (itmp->crl) {
269	0	if (!X509_STORE_add_crl(ctx->store_ctx, itmp->crl)) {
270	0	count = 0;
271	0	goto err;
272	0	}
273	0	count++;
274	0	}
275	0	}
276	0	if (count == 0)
277	0	ERR_raise(ERR_LIB_X509, X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
278	0	err:
279	0	sk_X509_INFO_pop_free(inf, X509_INFO_free);
280	0	return count;
281	0	}
282
283		int X509_load_cert_crl_file(X509_LOOKUP ctx, const char file, int type)
284	0	{
285	0	return X509_load_cert_crl_file_ex(ctx, file, type, NULL, NULL);
286	0	}