OpenCoverage

bio_ndef.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/asn1/bio_ndef.c
Source codeSwitch to Preprocessed file
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1/*-
2 * Copyright 2008-2018 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
4 * Licensed under the OpenSSL license (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 <openssl/asn1.h>-
11#include <openssl/asn1t.h>-
12#include <openssl/bio.h>-
13#include <openssl/err.h>-
14-
15#include <stdio.h>-
16-
17/* Experimental NDEF ASN1 BIO support routines */-
18-
19/*-
20 * The usage is quite simple, initialize an ASN1 structure, get a BIO from it-
21 * then any data written through the BIO will end up translated to-
22 * appropriate format on the fly. The data is streamed out and does *not*-
23 * need to be all held in memory at once. When the BIO is flushed the output-
24 * is finalized and any signatures etc written out. The BIO is a 'proper'-
25 * BIO and can handle non blocking I/O correctly. The usage is simple. The-
26 * implementation is *not*...-
27 */-
28-
29/* BIO support data stored in the ASN1 BIO ex_arg */-
30-
31typedef struct ndef_aux_st {-
32 /* ASN1 structure this BIO refers to */-
33 ASN1_VALUE *val;-
34 const ASN1_ITEM *it;-
35 /* Top of the BIO chain */-
36 BIO *ndef_bio;-
37 /* Output BIO */-
38 BIO *out;-
39 /* Boundary where content is inserted */-
40 unsigned char **boundary;-
41 /* DER buffer start */-
42 unsigned char *derbuf;-
43} NDEF_SUPPORT;-
44-
45static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg);-
46static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,-
47 void *parg);-
48static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg);-
49static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,-
50 void *parg);-
51-
52BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it)-
53{-
54 NDEF_SUPPORT *ndef_aux = NULL;-
55 BIO *asn_bio = NULL;-
56 const ASN1_AUX *aux = it->funcs;-
57 ASN1_STREAM_ARG sarg;-
58-
59 if (!aux || !aux->asn1_cb) {
!auxDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
!aux->asn1_cbDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
60 ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);-
61 return NULL;
never executed: return ((void *)0) ;
0
62 }-
63 ndef_aux = OPENSSL_zalloc(sizeof(*ndef_aux));-
64 asn_bio = BIO_new(BIO_f_asn1());-
65 if (ndef_aux == NULL || asn_bio == NULL)
ndef_aux == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
asn_bio == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
66 goto err;
never executed: goto err;
0
67-
68 /* ASN1 bio needs to be next to output BIO */-
69 out = BIO_push(asn_bio, out);-
70 if (out == NULL)
out == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
71 goto err;
never executed: goto err;
0
72-
73 BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);-
74 BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);-
75-
76 /*-
77 * Now let callback prepends any digest, cipher etc BIOs ASN1 structure-
78 * needs.-
79 */-
80-
81 sarg.out = out;-
82 sarg.ndef_bio = NULL;-
83 sarg.boundary = NULL;-
84-
85 if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
aux->asn1_cb(1...t, &sarg) <= 0Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
86 goto err;
never executed: goto err;
0
87-
88 ndef_aux->val = val;-
89 ndef_aux->it = it;-
90 ndef_aux->ndef_bio = sarg.ndef_bio;-
91 ndef_aux->boundary = sarg.boundary;-
92 ndef_aux->out = out;-
93-
94 BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);-
95-
96 return sarg.ndef_bio;
executed 45 times by 1 test: return sarg.ndef_bio;
Executed by:
  • libcrypto.so.1.1
45
97-
98 err:-
99 BIO_free(asn_bio);-
100 OPENSSL_free(ndef_aux);-
101 return NULL;
never executed: return ((void *)0) ;
0
102}-
103-
104static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg)-
105{-
106 NDEF_SUPPORT *ndef_aux;-
107 unsigned char *p;-
108 int derlen;-
109-
110 if (!parg)
!pargDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
111 return 0;
never executed: return 0;
0
112-
113 ndef_aux = *(NDEF_SUPPORT **)parg;-
114-
115 derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);-
116 if ((p = OPENSSL_malloc(derlen)) == NULL) {
(p = CRYPTO_ma...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
117 ASN1err(ASN1_F_NDEF_PREFIX, ERR_R_MALLOC_FAILURE);-
118 return 0;
never executed: return 0;
0
119 }-
120-
121 ndef_aux->derbuf = p;-
122 *pbuf = p;-
123 derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);-
124-
125 if (!*ndef_aux->boundary)
!*ndef_aux->boundaryDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
126 return 0;
never executed: return 0;
0
127-
128 *plen = *ndef_aux->boundary - *pbuf;-
129-
130 return 1;
executed 45 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
45
131}-
132-
133static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,-
134 void *parg)-
135{-
136 NDEF_SUPPORT *ndef_aux;-
137-
138 if (!parg)
!pargDescription
TRUEnever evaluated
FALSEevaluated 90 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-90
139 return 0;
never executed: return 0;
0
140-
141 ndef_aux = *(NDEF_SUPPORT **)parg;-
142-
143 OPENSSL_free(ndef_aux->derbuf);-
144-
145 ndef_aux->derbuf = NULL;-
146 *pbuf = NULL;-
147 *plen = 0;-
148 return 1;
executed 90 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
90
149}-
150-
151static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,-
152 void *parg)-
153{-
154 NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;-
155 if (!ndef_prefix_free(b, pbuf, plen, parg))
!ndef_prefix_f...f, plen, parg)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
156 return 0;
never executed: return 0;
0
157 OPENSSL_free(*pndef_aux);-
158 *pndef_aux = NULL;-
159 return 1;
executed 45 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
45
160}-
161-
162static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg)-
163{-
164 NDEF_SUPPORT *ndef_aux;-
165 unsigned char *p;-
166 int derlen;-
167 const ASN1_AUX *aux;-
168 ASN1_STREAM_ARG sarg;-
169-
170 if (!parg)
!pargDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
171 return 0;
never executed: return 0;
0
172-
173 ndef_aux = *(NDEF_SUPPORT **)parg;-
174-
175 aux = ndef_aux->it->funcs;-
176-
177 /* Finalize structures */-
178 sarg.ndef_bio = ndef_aux->ndef_bio;-
179 sarg.out = ndef_aux->out;-
180 sarg.boundary = ndef_aux->boundary;-
181 if (aux->asn1_cb(ASN1_OP_STREAM_POST,
aux->asn1_cb(1...t, &sarg) <= 0Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
182 &ndef_aux->val, ndef_aux->it, &sarg) <= 0)
aux->asn1_cb(1...t, &sarg) <= 0Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
183 return 0;
never executed: return 0;
0
184-
185 derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);-
186 if ((p = OPENSSL_malloc(derlen)) == NULL) {
(p = CRYPTO_ma...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
187 ASN1err(ASN1_F_NDEF_SUFFIX, ERR_R_MALLOC_FAILURE);-
188 return 0;
never executed: return 0;
0
189 }-
190-
191 ndef_aux->derbuf = p;-
192 *pbuf = p;-
193 derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);-
194-
195 if (!*ndef_aux->boundary)
!*ndef_aux->boundaryDescription
TRUEnever evaluated
FALSEevaluated 45 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-45
196 return 0;
never executed: return 0;
0
197 *pbuf = *ndef_aux->boundary;-
198 *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);-
199-
200 return 1;
executed 45 times by 1 test: return 1;
Executed by:
  • libcrypto.so.1.1
45
201}-
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