diff options
Diffstat (limited to '')
-rw-r--r-- | src/lib/libcrypto/asn1/a_bitstr.c | 274 |
1 files changed, 144 insertions, 130 deletions
diff --git a/src/lib/libcrypto/asn1/a_bitstr.c b/src/lib/libcrypto/asn1/a_bitstr.c index e2b65bf2ac..5633cfca1c 100644 --- a/src/lib/libcrypto/asn1/a_bitstr.c +++ b/src/lib/libcrypto/asn1/a_bitstr.c | |||
@@ -5,21 +5,21 @@ | |||
5 | * This package is an SSL implementation written | 5 | * This package is an SSL implementation written |
6 | * by Eric Young (eay@cryptsoft.com). | 6 | * by Eric Young (eay@cryptsoft.com). |
7 | * The implementation was written so as to conform with Netscapes SSL. | 7 | * The implementation was written so as to conform with Netscapes SSL. |
8 | * | 8 | * |
9 | * This library is free for commercial and non-commercial use as long as | 9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions | 10 | * the following conditions are aheared to. The following conditions |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
13 | * included with this distribution is covered by the same copyright terms | 13 | * included with this distribution is covered by the same copyright terms |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
15 | * | 15 | * |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. | 17 | * the code are not to be removed. |
18 | * If this package is used in a product, Eric Young should be given attribution | 18 | * If this package is used in a product, Eric Young should be given attribution |
19 | * as the author of the parts of the library used. | 19 | * as the author of the parts of the library used. |
20 | * This can be in the form of a textual message at program startup or | 20 | * This can be in the form of a textual message at program startup or |
21 | * in documentation (online or textual) provided with the package. | 21 | * in documentation (online or textual) provided with the package. |
22 | * | 22 | * |
23 | * Redistribution and use in source and binary forms, with or without | 23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions | 24 | * modification, are permitted provided that the following conditions |
25 | * are met: | 25 | * are met: |
@@ -34,10 +34,10 @@ | |||
34 | * Eric Young (eay@cryptsoft.com)" | 34 | * Eric Young (eay@cryptsoft.com)" |
35 | * The word 'cryptographic' can be left out if the rouines from the library | 35 | * The word 'cryptographic' can be left out if the rouines from the library |
36 | * being used are not cryptographic related :-). | 36 | * being used are not cryptographic related :-). |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
38 | * the apps directory (application code) you must include an acknowledgement: | 38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
40 | * | 40 | * |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
@@ -49,7 +49,7 @@ | |||
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
51 | * SUCH DAMAGE. | 51 | * SUCH DAMAGE. |
52 | * | 52 | * |
53 | * The licence and distribution terms for any publically available version or | 53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
55 | * copied and put under another distribution licence | 55 | * copied and put under another distribution licence |
@@ -60,82 +60,91 @@ | |||
60 | #include "cryptlib.h" | 60 | #include "cryptlib.h" |
61 | #include <openssl/asn1.h> | 61 | #include <openssl/asn1.h> |
62 | 62 | ||
63 | int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) | 63 | int |
64 | { return M_ASN1_BIT_STRING_set(x, d, len); } | 64 | ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) |
65 | { | ||
66 | return M_ASN1_BIT_STRING_set(x, d, len); | ||
67 | } | ||
65 | 68 | ||
66 | int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) | 69 | int |
67 | { | 70 | i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) |
68 | int ret,j,bits,len; | 71 | { |
69 | unsigned char *p,*d; | 72 | int ret, j,bits, len; |
73 | unsigned char *p, *d; | ||
70 | 74 | ||
71 | if (a == NULL) return(0); | 75 | if (a == NULL) |
76 | return (0); | ||
72 | 77 | ||
73 | len=a->length; | 78 | len = a->length; |
74 | 79 | ||
75 | if (len > 0) | 80 | if (len > 0) { |
76 | { | 81 | if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) { |
77 | if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) | 82 | bits = (int)a->flags & 0x07; |
78 | { | 83 | } else { |
79 | bits=(int)a->flags&0x07; | 84 | for (; len > 0; len--) { |
80 | } | 85 | if (a->data[len - 1]) |
81 | else | 86 | break; |
82 | { | ||
83 | for ( ; len > 0; len--) | ||
84 | { | ||
85 | if (a->data[len-1]) break; | ||
86 | } | ||
87 | j=a->data[len-1]; | ||
88 | if (j & 0x01) bits=0; | ||
89 | else if (j & 0x02) bits=1; | ||
90 | else if (j & 0x04) bits=2; | ||
91 | else if (j & 0x08) bits=3; | ||
92 | else if (j & 0x10) bits=4; | ||
93 | else if (j & 0x20) bits=5; | ||
94 | else if (j & 0x40) bits=6; | ||
95 | else if (j & 0x80) bits=7; | ||
96 | else bits=0; /* should not happen */ | ||
97 | } | 87 | } |
88 | j = a->data[len - 1]; | ||
89 | if (j & 0x01) | ||
90 | bits = 0; | ||
91 | else if (j & 0x02) | ||
92 | bits = 1; | ||
93 | else if (j & 0x04) | ||
94 | bits = 2; | ||
95 | else if (j & 0x08) | ||
96 | bits = 3; | ||
97 | else if (j & 0x10) | ||
98 | bits = 4; | ||
99 | else if (j & 0x20) | ||
100 | bits = 5; | ||
101 | else if (j & 0x40) | ||
102 | bits = 6; | ||
103 | else if (j & 0x80) | ||
104 | bits = 7; | ||
105 | else | ||
106 | bits = 0; /* should not happen */ | ||
98 | } | 107 | } |
99 | else | 108 | } else |
100 | bits=0; | 109 | bits = 0; |
101 | 110 | ||
102 | ret=1+len; | 111 | ret = 1 + len; |
103 | if (pp == NULL) return(ret); | 112 | if (pp == NULL) |
113 | return (ret); | ||
104 | 114 | ||
105 | p= *pp; | 115 | p= *pp; |
106 | 116 | ||
107 | *(p++)=(unsigned char)bits; | 117 | *(p++) = (unsigned char)bits; |
108 | d=a->data; | 118 | d = a->data; |
109 | memcpy(p,d,len); | 119 | memcpy(p, d, len); |
110 | p+=len; | 120 | p += len; |
111 | if (len > 0) p[-1]&=(0xff<<bits); | 121 | if (len > 0) |
112 | *pp=p; | 122 | p[-1]&=(0xff << bits); |
113 | return(ret); | 123 | *pp = p; |
114 | } | 124 | return (ret); |
125 | } | ||
115 | 126 | ||
116 | ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, | 127 | ASN1_BIT_STRING * |
117 | const unsigned char **pp, long len) | 128 | c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, const unsigned char **pp, long len) |
118 | { | 129 | { |
119 | ASN1_BIT_STRING *ret=NULL; | 130 | ASN1_BIT_STRING *ret = NULL; |
120 | const unsigned char *p; | 131 | const unsigned char *p; |
121 | unsigned char *s; | 132 | unsigned char *s; |
122 | int i; | 133 | int i; |
123 | 134 | ||
124 | if (len < 1) | 135 | if (len < 1) { |
125 | { | 136 | i = ASN1_R_STRING_TOO_SHORT; |
126 | i=ASN1_R_STRING_TOO_SHORT; | ||
127 | goto err; | 137 | goto err; |
128 | } | 138 | } |
129 | 139 | ||
130 | if ((a == NULL) || ((*a) == NULL)) | 140 | if ((a == NULL) || ((*a) == NULL)) { |
131 | { | 141 | if ((ret = M_ASN1_BIT_STRING_new()) == NULL) |
132 | if ((ret=M_ASN1_BIT_STRING_new()) == NULL) return(NULL); | 142 | return (NULL); |
133 | } | 143 | } else |
134 | else | 144 | ret = (*a); |
135 | ret=(*a); | ||
136 | 145 | ||
137 | p= *pp; | 146 | p = *pp; |
138 | i= *(p++); | 147 | i = *(p++); |
139 | /* We do this to preserve the settings. If we modify | 148 | /* We do this to preserve the settings. If we modify |
140 | * the settings, via the _set_bit function, we will recalculate | 149 | * the settings, via the _set_bit function, we will recalculate |
141 | * on output */ | 150 | * on output */ |
@@ -143,106 +152,111 @@ ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, | |||
143 | ret->flags|=(ASN1_STRING_FLAG_BITS_LEFT|(i&0x07)); /* set */ | 152 | ret->flags|=(ASN1_STRING_FLAG_BITS_LEFT|(i&0x07)); /* set */ |
144 | 153 | ||
145 | if (len-- > 1) /* using one because of the bits left byte */ | 154 | if (len-- > 1) /* using one because of the bits left byte */ |
146 | { | 155 | { |
147 | s=(unsigned char *)malloc((int)len); | 156 | s = (unsigned char *)malloc((int)len); |
148 | if (s == NULL) | 157 | if (s == NULL) { |
149 | { | 158 | i = ERR_R_MALLOC_FAILURE; |
150 | i=ERR_R_MALLOC_FAILURE; | ||
151 | goto err; | 159 | goto err; |
152 | } | ||
153 | memcpy(s,p,(int)len); | ||
154 | s[len-1]&=(0xff<<i); | ||
155 | p+=len; | ||
156 | } | 160 | } |
157 | else | 161 | memcpy(s, p, (int)len); |
158 | s=NULL; | 162 | s[len - 1] &= (0xff << i); |
159 | 163 | p += len; | |
160 | ret->length=(int)len; | 164 | } else |
161 | if (ret->data != NULL) free(ret->data); | 165 | s = NULL; |
162 | ret->data=s; | 166 | |
163 | ret->type=V_ASN1_BIT_STRING; | 167 | ret->length = (int)len; |
164 | if (a != NULL) (*a)=ret; | 168 | if (ret->data != NULL) |
165 | *pp=p; | 169 | free(ret->data); |
166 | return(ret); | 170 | ret->data = s; |
171 | ret->type = V_ASN1_BIT_STRING; | ||
172 | if (a != NULL) | ||
173 | (*a) = ret; | ||
174 | *pp = p; | ||
175 | return (ret); | ||
176 | |||
167 | err: | 177 | err: |
168 | ASN1err(ASN1_F_C2I_ASN1_BIT_STRING,i); | 178 | ASN1err(ASN1_F_C2I_ASN1_BIT_STRING, i); |
169 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) | 179 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) |
170 | M_ASN1_BIT_STRING_free(ret); | 180 | M_ASN1_BIT_STRING_free(ret); |
171 | return(NULL); | 181 | return (NULL); |
172 | } | 182 | } |
173 | 183 | ||
174 | /* These next 2 functions from Goetz Babin-Ebell <babinebell@trustcenter.de> | 184 | /* These next 2 functions from Goetz Babin-Ebell <babinebell@trustcenter.de> |
175 | */ | 185 | */ |
176 | int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) | 186 | int |
177 | { | 187 | ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) |
178 | int w,v,iv; | 188 | { |
189 | int w, v, iv; | ||
179 | unsigned char *c; | 190 | unsigned char *c; |
180 | 191 | ||
181 | w=n/8; | 192 | w = n/8; |
182 | v=1<<(7-(n&0x07)); | 193 | v = 1 << (7 - (n & 0x07)); |
183 | iv= ~v; | 194 | iv = ~v; |
184 | if (!value) v=0; | 195 | if (!value) |
196 | v = 0; | ||
185 | 197 | ||
186 | if (a == NULL) | 198 | if (a == NULL) |
187 | return 0; | 199 | return 0; |
188 | 200 | ||
189 | a->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear, set on write */ | 201 | a->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear, set on write */ |
190 | 202 | ||
191 | if ((a->length < (w+1)) || (a->data == NULL)) | 203 | if ((a->length < (w + 1)) || (a->data == NULL)) { |
192 | { | 204 | if (!value) |
193 | if (!value) return(1); /* Don't need to set */ | 205 | return(1); /* Don't need to set */ |
194 | if (a->data == NULL) | 206 | if (a->data == NULL) |
195 | c=(unsigned char *)malloc(w+1); | 207 | c = (unsigned char *)malloc(w + 1); |
196 | else | 208 | else |
197 | c=(unsigned char *)OPENSSL_realloc_clean(a->data, | 209 | c = (unsigned char *)OPENSSL_realloc_clean(a->data, |
198 | a->length, | 210 | a->length, w + 1); |
199 | w+1); | 211 | if (c == NULL) { |
200 | if (c == NULL) | 212 | ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT, ERR_R_MALLOC_FAILURE); |
201 | { | ||
202 | ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT,ERR_R_MALLOC_FAILURE); | ||
203 | return 0; | 213 | return 0; |
204 | } | 214 | } |
205 | if (w+1-a->length > 0) memset(c+a->length, 0, w+1-a->length); | 215 | if (w + 1 - a->length > 0) |
206 | a->data=c; | 216 | memset(c + a->length, 0, w + 1 - a->length); |
207 | a->length=w+1; | 217 | a->data = c; |
218 | a->length = w + 1; | ||
208 | } | 219 | } |
209 | a->data[w]=((a->data[w])&iv)|v; | 220 | a->data[w] = ((a->data[w]) & iv) | v; |
210 | while ((a->length > 0) && (a->data[a->length-1] == 0)) | 221 | while ((a->length > 0) && (a->data[a->length - 1] == 0)) |
211 | a->length--; | 222 | a->length--; |
212 | return(1); | ||
213 | } | ||
214 | 223 | ||
215 | int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) | 224 | return (1); |
216 | { | 225 | } |
217 | int w,v; | ||
218 | 226 | ||
219 | w=n/8; | 227 | int |
220 | v=1<<(7-(n&0x07)); | 228 | ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) |
221 | if ((a == NULL) || (a->length < (w+1)) || (a->data == NULL)) | 229 | { |
222 | return(0); | 230 | int w, v; |
223 | return((a->data[w]&v) != 0); | 231 | |
224 | } | 232 | w = n / 8; |
233 | v = 1 << (7 - (n & 0x07)); | ||
234 | if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL)) | ||
235 | return (0); | ||
236 | return ((a->data[w] & v) != 0); | ||
237 | } | ||
225 | 238 | ||
226 | /* | 239 | /* |
227 | * Checks if the given bit string contains only bits specified by | 240 | * Checks if the given bit string contains only bits specified by |
228 | * the flags vector. Returns 0 if there is at least one bit set in 'a' | 241 | * the flags vector. Returns 0 if there is at least one bit set in 'a' |
229 | * which is not specified in 'flags', 1 otherwise. | 242 | * which is not specified in 'flags', 1 otherwise. |
230 | * 'len' is the length of 'flags'. | 243 | * 'len' is the length of 'flags'. |
231 | */ | 244 | */ |
232 | int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, | 245 | int |
233 | unsigned char *flags, int flags_len) | 246 | ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, unsigned char *flags, int flags_len) |
234 | { | 247 | { |
235 | int i, ok; | 248 | int i, ok; |
249 | |||
236 | /* Check if there is one bit set at all. */ | 250 | /* Check if there is one bit set at all. */ |
237 | if (!a || !a->data) return 1; | 251 | if (!a || !a->data) |
252 | return 1; | ||
238 | 253 | ||
239 | /* Check each byte of the internal representation of the bit string. */ | 254 | /* Check each byte of the internal representation of the bit string. */ |
240 | ok = 1; | 255 | ok = 1; |
241 | for (i = 0; i < a->length && ok; ++i) | 256 | for (i = 0; i < a->length && ok; ++i) { |
242 | { | ||
243 | unsigned char mask = i < flags_len ? ~flags[i] : 0xff; | 257 | unsigned char mask = i < flags_len ? ~flags[i] : 0xff; |
244 | /* We are done if there is an unneeded bit set. */ | 258 | /* We are done if there is an unneeded bit set. */ |
245 | ok = (a->data[i] & mask) == 0; | 259 | ok = (a->data[i] & mask) == 0; |
246 | } | ||
247 | return ok; | ||
248 | } | 260 | } |
261 | return ok; | ||
262 | } | ||