Signed Receipt Request utility functions and option on CMS utility to
[openssl.git] / crypto / cms / cms_ess.c
1 /* crypto/cms/cms_ess.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project.
4  */
5 /* ====================================================================
6  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer. 
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in
17  *    the documentation and/or other materials provided with the
18  *    distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  *    software must display the following acknowledgment:
22  *    "This product includes software developed by the OpenSSL Project
23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26  *    endorse or promote products derived from this software without
27  *    prior written permission. For written permission, please contact
28  *    licensing@OpenSSL.org.
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  *    nor may "OpenSSL" appear in their names without prior written
32  *    permission of the OpenSSL Project.
33  *
34  * 6. Redistributions of any form whatsoever must retain the following
35  *    acknowledgment:
36  *    "This product includes software developed by the OpenSSL Project
37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50  * OF THE POSSIBILITY OF SUCH DAMAGE.
51  * ====================================================================
52  */
53
54 #include "cryptlib.h"
55 #include <openssl/asn1t.h>
56 #include <openssl/pem.h>
57 #include <openssl/rand.h>
58 #include <openssl/x509v3.h>
59 #include <openssl/err.h>
60 #include <openssl/cms.h>
61 #include "cms_lcl.h"
62 #include "asn1_locl.h"
63
64 DECLARE_ASN1_ITEM(CMS_ReceiptRequest)
65
66 IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest)
67
68 /* ESS services: for now just Signed Receipt related */
69
70 int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr)
71         {
72         ASN1_STRING *str;
73         CMS_ReceiptRequest *rr = NULL;
74         if (prr)
75                 *prr = NULL;
76         str = CMS_signed_get0_data_by_OBJ(si,
77                                 OBJ_nid2obj(NID_id_smime_aa_receiptRequest),
78                                         -3, V_ASN1_SEQUENCE);
79         if (!str)
80                 return 0;
81
82         rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
83         if (!rr)
84                 return -1;
85         if (prr)
86                 *prr = rr;
87         else
88                 CMS_ReceiptRequest_free(rr);
89         return 1;
90         }
91
92 int CMS_add1_ReceiptRequest(CMS_SignerInfo *si,
93                                 unsigned char *id, int idlen,
94                                 int allorfirst,
95                                 STACK_OF(GENERAL_NAMES) *receiptList,
96                                 STACK_OF(GENERAL_NAMES) *receiptsTo)
97         {
98         CMS_ReceiptRequest *rr = NULL;
99         STACK_OF(GENERAL_NAMES) *tmpto = NULL;
100         unsigned char *rrder = NULL;
101         int rrderlen;
102         int r = 0;
103
104         rr = CMS_ReceiptRequest_new();
105         if (!rr)
106                 goto merr;
107         if (id)
108                 {
109                 if (!ASN1_STRING_set(rr->signedContentIdentifier, id, idlen))
110                         goto merr;
111                 }
112         else
113                 {
114                 if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
115                         goto merr;
116                 if (RAND_pseudo_bytes(rr->signedContentIdentifier->data, 32) 
117                                         <= 0)
118                         goto err;
119                 }
120
121         tmpto = rr->receiptsTo;
122         rr->receiptsTo = receiptsTo;
123
124         if (receiptList)
125                 {
126                 rr->receiptsFrom->type = 1;
127                 rr->receiptsFrom->d.receiptList = receiptList;
128                 }
129         else
130                 {
131                 rr->receiptsFrom->type = 0;
132                 rr->receiptsFrom->d.allOrFirstTier = allorfirst;
133                 }
134
135         rrderlen = i2d_CMS_ReceiptRequest(rr, &rrder);
136
137         r = CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
138                                         V_ASN1_SEQUENCE, rrder, rrderlen);
139
140         merr:
141         CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST, ERR_R_MALLOC_FAILURE);
142
143         err:
144         if (rr)
145                 {
146                 rr->receiptsTo = tmpto;
147                 rr->receiptsFrom->type = 0;
148                 CMS_ReceiptRequest_free(rr);
149                 }
150         if (rrder)
151                 OPENSSL_free(rrder);
152
153         return r;
154         
155         }
156
157 void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr,
158                                         ASN1_STRING **pcid,
159                                         int *pallorfirst,
160                                         STACK_OF(GENERAL_NAMES) **plist,
161                                         STACK_OF(GENERAL_NAMES) **prto)
162         {
163         if (pcid)
164                 *pcid = rr->signedContentIdentifier;
165         if (rr->receiptsFrom->type == 0)
166                 {
167                 if (pallorfirst)
168                         *pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
169                 if (plist)
170                         *plist = NULL;
171                 }
172         else
173                 {
174                 if (pallorfirst)
175                         *pallorfirst = -1;
176                 if (plist)
177                         *plist = rr->receiptsFrom->d.receiptList;
178                 }
179         if (prto)
180                 *prto = rr->receiptsTo;
181         }
182
183
184