x509aux.c revision 1.1.1.2 
1/*
2 * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL licenses, (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.openssl.org/source/license.html
8 * or in the file LICENSE in the source distribution.
9 */
10
11#include <stdio.h>
12#include <string.h>
13#include <errno.h>
14
15#include <openssl/x509.h>
16#include <openssl/pem.h>
17#include <openssl/conf.h>
18#include <openssl/err.h>
19#include "internal/nelem.h"
20#include "testutil.h"
21
22static int test_certs(int num)
23{
24    int c;
25    char *name = 0;
26    char *header = 0;
27    unsigned char *data = 0;
28    long len;
29    typedef X509 *(*d2i_X509_t)(X509 **, const unsigned char **, long);
30    typedef int (*i2d_X509_t)(X509 *, unsigned char **);
31    int err = 0;
32    BIO *fp = BIO_new_file(test_get_argument(num), "r");
33
34    if (!TEST_ptr(fp))
35        return 0;
36
37    for (c = 0; !err && PEM_read_bio(fp, &name, &header, &data, &len); ++c) {
38        const int trusted = (strcmp(name, PEM_STRING_X509_TRUSTED) == 0);
39
40        d2i_X509_t d2i = trusted ? d2i_X509_AUX : d2i_X509;
41        i2d_X509_t i2d = trusted ? i2d_X509_AUX : i2d_X509;
42        X509 *cert = NULL;
43        const unsigned char *p = data;
44        unsigned char *buf = NULL;
45        unsigned char *bufp;
46        long enclen;
47
48        if (!trusted
49            && strcmp(name, PEM_STRING_X509) != 0
50            && strcmp(name, PEM_STRING_X509_OLD) != 0) {
51            TEST_error("unexpected PEM object: %s", name);
52            err = 1;
53            goto next;
54        }
55        cert = d2i(NULL, &p, len);
56
57        if (cert == NULL || (p - data) != len) {
58            TEST_error("error parsing input %s", name);
59            err = 1;
60            goto next;
61        }
62
63        /* Test traditional 2-pass encoding into caller allocated buffer */
64        enclen = i2d(cert, NULL);
65        if (len != enclen) {
66            TEST_error("encoded length %ld of %s != input length %ld",
67                       enclen, name, len);
68            err = 1;
69            goto next;
70        }
71        if ((buf = bufp = OPENSSL_malloc(len)) == NULL) {
72            TEST_perror("malloc");
73            err = 1;
74            goto next;
75        }
76        enclen = i2d(cert, &bufp);
77        if (len != enclen) {
78            TEST_error("encoded length %ld of %s != input length %ld",
79                       enclen, name, len);
80            err = 1;
81            goto next;
82        }
83        enclen = (long) (bufp - buf);
84        if (enclen != len) {
85            TEST_error("unexpected buffer position after encoding %s", name);
86            err = 1;
87            goto next;
88        }
89        if (memcmp(buf, data, len) != 0) {
90            TEST_error("encoded content of %s does not match input", name);
91            err = 1;
92            goto next;
93        }
94        OPENSSL_free(buf);
95        buf = NULL;
96
97        /* Test 1-pass encoding into library allocated buffer */
98        enclen = i2d(cert, &buf);
99        if (len != enclen) {
100            TEST_error("encoded length %ld of %s != input length %ld",
101                       enclen, name, len);
102            err = 1;
103            goto next;
104        }
105        if (memcmp(buf, data, len) != 0) {
106            TEST_error("encoded content of %s does not match input", name);
107            err = 1;
108            goto next;
109        }
110
111        if (trusted) {
112            /* Encode just the cert and compare with initial encoding */
113            OPENSSL_free(buf);
114            buf = NULL;
115
116            /* Test 1-pass encoding into library allocated buffer */
117            enclen = i2d(cert, &buf);
118            if (enclen > len) {
119                TEST_error("encoded length %ld of %s > input length %ld",
120                           enclen, name, len);
121                err = 1;
122                goto next;
123            }
124            if (memcmp(buf, data, enclen) != 0) {
125                TEST_error("encoded cert content does not match input");
126                err = 1;
127                goto next;
128            }
129        }
130
131        /*
132         * If any of these were null, PEM_read() would have failed.
133         */
134    next:
135        X509_free(cert);
136        OPENSSL_free(buf);
137        OPENSSL_free(name);
138        OPENSSL_free(header);
139        OPENSSL_free(data);
140    }
141    BIO_free(fp);
142
143    if (ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) {
144        /* Reached end of PEM file */
145        if (c > 0) {
146            ERR_clear_error();
147            return 1;
148        }
149    }
150
151    /* Some other PEM read error */
152    return 0;
153}
154
155int setup_tests(void)
156{
157    size_t n = test_get_argument_count();
158
159    if (n == 0) {
160        TEST_error("usage: %s certfile...", test_get_program_name());
161        return 0;
162    }
163
164    ADD_ALL_TESTS(test_certs, (int)n);
165    return 1;
166}
167