summaryrefslogtreecommitdiff
path: root/ext/openssl/ossl_pkcs12.c
blob: 85e092b251e52ed133a17844974ad6dced9bb7e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
/*
 * This program is licenced under the same licence as Ruby.
 * (See the file 'LICENCE'.)
 * $Id$
 */
#include "ossl.h"

#define WrapPKCS12(klass, obj, p12) do { \
    if(!p12) ossl_raise(rb_eRuntimeError, "PKCS12 wasn't initialized."); \
    obj = Data_Wrap_Struct(klass, 0, PKCS12_free, p12); \
} while (0)

#define GetPKCS12(obj, p12) do { \
    Data_Get_Struct(obj, PKCS12, p12); \
    if(!p12) ossl_raise(rb_eRuntimeError, "PKCS12 wasn't initialized."); \
} while (0)

#define SafeGetPKCS12(obj, p12) do { \
    OSSL_Check_Kind(obj, cPKCS12); \
    GetPKCS12(obj, p12); \
} while (0)

#define ossl_pkcs12_set_key(o,v)      rb_iv_set((o), "@key", (v))
#define ossl_pkcs12_set_cert(o,v)     rb_iv_set((o), "@certificate", (v))
#define ossl_pkcs12_set_ca_certs(o,v) rb_iv_set((o), "@ca_certs", (v))
#define ossl_pkcs12_get_key(o)        rb_iv_get((o), "@key")
#define ossl_pkcs12_get_cert(o)       rb_iv_get((o), "@certificate")
#define ossl_pkcs12_get_ca_certs(o)   rb_iv_get((o), "@ca_certs")

/*
 * Classes
 */
VALUE cPKCS12;
VALUE ePKCS12Error;

/*
 * Private
 */
static VALUE
ossl_pkcs12_s_allocate(VALUE klass)
{
    PKCS12 *p12;
    VALUE obj;

    if(!(p12 = PKCS12_new())) ossl_raise(ePKCS12Error, NULL);
    WrapPKCS12(klass, obj, p12);

    return obj;
}

/*
 * call-seq:
 *    PKCS12.create(pass, name, key, cert [, ca, [, key_pbe [, cert_pbe [, key_iter [, mac_iter [, keytype]]]]]])
 *
 * === Parameters
 * * +pass+ - string
 * * +name+ - A string describing the key.
 * * +key+ - Any PKey.
 * * +cert+ - A X509::Certificate.
 * * * The public_key portion of the certificate must contain a valid public key.
 * * * The not_before and not_after fields must be filled in.
 * * +ca+ - An optional array of X509::Certificate's.
 * * +key_pbe+ - string
 * * +cert_pbe+ - string
 * * +key_iter+ - integer
 * * +mac_iter+ - integer
 * * +keytype+ - An integer representing an MSIE specific extension.
 *
 * Any optional arguments may be supplied as nil to preserve the OpenSSL defaults.
 *
 * See the OpenSSL documentation for PKCS12_create().
 */
static VALUE
ossl_pkcs12_s_create(int argc, VALUE *argv, VALUE self)
{
    VALUE pass, name, pkey, cert, ca, key_nid, cert_nid, key_iter, mac_iter, keytype;
    VALUE obj;
    char *passphrase, *friendlyname;
    EVP_PKEY *key;
    X509 *x509;
    STACK_OF(X509) *x509s;
    int nkey = 0, ncert = 0, kiter = 0, miter = 0, ktype = 0;
    PKCS12 *p12;

    rb_scan_args(argc, argv, "46", &pass, &name, &pkey, &cert, &ca, &key_nid, &cert_nid, &key_iter, &mac_iter, &keytype);
    passphrase = NIL_P(pass) ? NULL : StringValuePtr(pass);
    friendlyname = NIL_P(name) ? NULL : StringValuePtr(name);
    key = GetPKeyPtr(pkey);
    x509 = GetX509CertPtr(cert);
    x509s = NIL_P(ca) ? NULL : ossl_x509_ary2sk(ca);
/* TODO: make a VALUE to nid function */
    if (!NIL_P(key_nid)) {
        if ((nkey = OBJ_txt2nid(StringValuePtr(key_nid))) == NID_undef)
            rb_raise(rb_eArgError, "Unknown PBE algorithm %s", StringValuePtr(key_nid));
    }
    if (!NIL_P(cert_nid)) {
        if ((ncert = OBJ_txt2nid(StringValuePtr(cert_nid))) == NID_undef)
            rb_raise(rb_eArgError, "Unknown PBE algorithm %s", StringValuePtr(cert_nid));
    }
    if (!NIL_P(key_iter))
        kiter = NUM2INT(key_iter);
    if (!NIL_P(mac_iter))
        miter = NUM2INT(mac_iter);
    if (!NIL_P(keytype))
        ktype = NUM2INT(keytype);

    p12 = PKCS12_create(passphrase, friendlyname, key, x509, x509s,
                        nkey, ncert, kiter, miter, ktype);
    sk_X509_pop_free(x509s, X509_free);
    if(!p12) ossl_raise(ePKCS12Error, NULL);
    WrapPKCS12(cPKCS12, obj, p12);

    ossl_pkcs12_set_key(obj, pkey);
    ossl_pkcs12_set_cert(obj, cert);
    ossl_pkcs12_set_ca_certs(obj, ca);

    return obj;
}

/*
 * call-seq:
 *    PKCS12.new -> pkcs12
 *    PKCS12.new(str) -> pkcs12
 *    PKCS12.new(str, pass) -> pkcs12
 *
 * === Parameters
 * * +str+ - Must be a DER encoded PKCS12 string.
 * * +pass+ - string
 */
static VALUE
ossl_pkcs12_initialize(int argc, VALUE *argv, VALUE self)
{
    BIO *in;
    VALUE arg, pass, pkey, cert, ca;
    char *passphrase;
    EVP_PKEY *key;
    X509 *x509;
    STACK_OF(X509) *x509s = NULL;
    int st = 0;
    PKCS12 *pkcs = DATA_PTR(self);

    if(rb_scan_args(argc, argv, "02", &arg, &pass) == 0) return self;
    passphrase = NIL_P(pass) ? NULL : StringValuePtr(pass);
    in = ossl_obj2bio(arg);
    d2i_PKCS12_bio(in, &pkcs);
    DATA_PTR(self) = pkcs;
    BIO_free(in);

    pkey = cert = ca = Qnil;
    if(!PKCS12_parse(pkcs, passphrase, &key, &x509, &x509s))
	ossl_raise(ePKCS12Error, "PKCS12_parse");
    pkey = rb_protect((VALUE(*)_((VALUE)))ossl_pkey_new, (VALUE)key,
		      &st); /* NO DUP */
    if(st) goto err;
    cert = rb_protect((VALUE(*)_((VALUE)))ossl_x509_new, (VALUE)x509, &st);
    if(st) goto err;
    if(x509s){
	ca =
	    rb_protect((VALUE(*)_((VALUE)))ossl_x509_sk2ary, (VALUE)x509s, &st);
	if(st) goto err;
    }

  err:
    X509_free(x509);
    sk_X509_pop_free(x509s, X509_free);
    ossl_pkcs12_set_key(self, pkey);
    ossl_pkcs12_set_cert(self, cert);
    ossl_pkcs12_set_ca_certs(self, ca);
    if(st) rb_jump_tag(st);

    return self;
}

static VALUE
ossl_pkcs12_to_der(VALUE self)
{
    PKCS12 *p12;
    VALUE str;
    long len;
    unsigned char *p;

    GetPKCS12(self, p12);
    if((len = i2d_PKCS12(p12, NULL)) <= 0)
	ossl_raise(ePKCS12Error, NULL);
    str = rb_str_new(0, len);
    p = (unsigned char *)RSTRING_PTR(str);
    if(i2d_PKCS12(p12, &p) <= 0)
	ossl_raise(ePKCS12Error, NULL);
    ossl_str_adjust(str, p);

    return str;
}

void
Init_ossl_pkcs12()
{
    /*
     * Defines a file format commonly used to store private keys with
     * accompanying public key certificates, protected with a password-based
     * symmetric key.
     */
    cPKCS12 = rb_define_class_under(mOSSL, "PKCS12", rb_cObject);
    ePKCS12Error = rb_define_class_under(cPKCS12, "PKCS12Error", eOSSLError);
    rb_define_singleton_method(cPKCS12, "create", ossl_pkcs12_s_create, -1);

    rb_define_alloc_func(cPKCS12, ossl_pkcs12_s_allocate);
    rb_attr(cPKCS12, rb_intern("key"), 1, 0, Qfalse);
    rb_attr(cPKCS12, rb_intern("certificate"), 1, 0, Qfalse);
    rb_attr(cPKCS12, rb_intern("ca_certs"), 1, 0, Qfalse);
    rb_define_method(cPKCS12, "initialize", ossl_pkcs12_initialize, -1);
    rb_define_method(cPKCS12, "to_der", ossl_pkcs12_to_der, 0);
}