/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"

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: 2025-10-28 06:56

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