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Side by Side Diff: mozilla/security/nss/lib/util/secder.h

Issue 14249009: Change the NSS and NSPR source tree to the new directory structure to be (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/nss/
Patch Set: Created 7 years, 8 months ago
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #ifndef _SECDER_H_
6 #define _SECDER_H_
7
8 #include "utilrename.h"
9
10 /*
11 * secder.h - public data structures and prototypes for the DER encoding and
12 * decoding utilities library
13 *
14 * $Id: secder.h,v 1.17 2012/11/14 01:14:12 wtc%google.com Exp $
15 */
16
17 #include <time.h>
18
19 #include "plarena.h"
20 #include "prlong.h"
21
22 #include "seccomon.h"
23 #include "secdert.h"
24 #include "prtime.h"
25
26 SEC_BEGIN_PROTOS
27
28 /*
29 ** Encode a data structure into DER.
30 ** "dest" will be filled in (and memory allocated) to hold the der
31 ** encoded structure in "src"
32 ** "t" is a template structure which defines the shape of the
33 ** stored data
34 ** "src" is a pointer to the structure that will be encoded
35 */
36 extern SECStatus DER_Encode(PLArenaPool *arena, SECItem *dest, DERTemplate *t,
37 void *src);
38
39 extern SECStatus DER_Lengths(SECItem *item, int *header_len_p,
40 PRUint32 *contents_len_p);
41
42 /*
43 ** Lower level der subroutine that stores the standard header into "to".
44 ** The header is of variable length, based on encodingLen.
45 ** The return value is the new value of "to" after skipping over the header.
46 ** "to" is where the header will be stored
47 ** "code" is the der code to write
48 ** "encodingLen" is the number of bytes of data that will follow
49 ** the header
50 */
51 extern unsigned char *DER_StoreHeader(unsigned char *to, unsigned int code,
52 PRUint32 encodingLen);
53
54 /*
55 ** Return the number of bytes it will take to hold a der encoded length.
56 */
57 extern int DER_LengthLength(PRUint32 len);
58
59 /*
60 ** Store a der encoded *signed* integer (whose value is "src") into "dst".
61 ** XXX This should really be enhanced to take a long.
62 */
63 extern SECStatus DER_SetInteger(PLArenaPool *arena, SECItem *dst, PRInt32 src);
64
65 /*
66 ** Store a der encoded *unsigned* integer (whose value is "src") into "dst".
67 ** XXX This should really be enhanced to take an unsigned long.
68 */
69 extern SECStatus DER_SetUInteger(PLArenaPool *arena, SECItem *dst, PRUint32 src) ;
70
71 /*
72 ** Decode a der encoded *signed* integer that is stored in "src".
73 ** If "-1" is returned, then the caller should check the error in
74 ** XP_GetError() to see if an overflow occurred (SEC_ERROR_BAD_DER).
75 */
76 extern long DER_GetInteger(SECItem *src);
77
78 /*
79 ** Decode a der encoded *unsigned* integer that is stored in "src".
80 ** If the ULONG_MAX is returned, then the caller should check the error
81 ** in XP_GetError() to see if an overflow occurred (SEC_ERROR_BAD_DER).
82 */
83 extern unsigned long DER_GetUInteger(SECItem *src);
84
85 /*
86 ** Convert an NSPR time value to a der encoded time value.
87 ** "result" is the der encoded time (memory is allocated)
88 ** "time" is the NSPR time value (Since Jan 1st, 1970).
89 ** time must be on or after January 1, 1950, and
90 ** before January 1, 2050
91 ** The caller is responsible for freeing up the buffer which
92 ** result->data points to upon a successful operation.
93 */
94 extern SECStatus DER_TimeToUTCTime(SECItem *result, PRTime time);
95 extern SECStatus DER_TimeToUTCTimeArena(PLArenaPool* arenaOpt,
96 SECItem *dst, PRTime gmttime);
97
98
99 /*
100 ** Convert an ascii encoded time value (according to DER rules) into
101 ** an NSPR time value.
102 ** "result" the resulting NSPR time
103 ** "string" the der notation ascii value to decode
104 */
105 extern SECStatus DER_AsciiToTime(PRTime *result, const char *string);
106
107 /*
108 ** Same as DER_AsciiToTime except takes an SECItem instead of a string
109 */
110 extern SECStatus DER_UTCTimeToTime(PRTime *result, const SECItem *time);
111
112 /*
113 ** Convert a DER encoded UTC time to an ascii time representation
114 ** "utctime" is the DER encoded UTC time to be converted. The
115 ** caller is responsible for deallocating the returned buffer.
116 */
117 extern char *DER_UTCTimeToAscii(SECItem *utcTime);
118
119 /*
120 ** Convert a DER encoded UTC time to an ascii time representation, but only
121 ** include the day, not the time.
122 ** "utctime" is the DER encoded UTC time to be converted.
123 ** The caller is responsible for deallocating the returned buffer.
124 */
125 extern char *DER_UTCDayToAscii(SECItem *utctime);
126 /* same thing for DER encoded GeneralizedTime */
127 extern char *DER_GeneralizedDayToAscii(SECItem *gentime);
128 /* same thing for either DER UTCTime or GeneralizedTime */
129 extern char *DER_TimeChoiceDayToAscii(SECItem *timechoice);
130
131 /*
132 ** Convert a PRTime time to a DER encoded Generalized time
133 ** gmttime must be on or after January 1, year 1 and
134 ** before January 1, 10000.
135 */
136 extern SECStatus DER_TimeToGeneralizedTime(SECItem *dst, PRTime gmttime);
137 extern SECStatus DER_TimeToGeneralizedTimeArena(PLArenaPool* arenaOpt,
138 SECItem *dst, PRTime gmttime);
139
140 /*
141 ** Convert a DER encoded Generalized time value into an NSPR time value.
142 ** "dst" the resulting NSPR time
143 ** "string" the der notation ascii value to decode
144 */
145 extern SECStatus DER_GeneralizedTimeToTime(PRTime *dst, const SECItem *time);
146
147 /*
148 ** Convert from a PRTime UTC time value to a formatted ascii value. The
149 ** caller is responsible for deallocating the returned buffer.
150 */
151 extern char *CERT_UTCTime2FormattedAscii (PRTime utcTime, char *format);
152 #define CERT_GeneralizedTime2FormattedAscii CERT_UTCTime2FormattedAscii
153
154 /*
155 ** Convert from a PRTime Generalized time value to a formatted ascii value. The
156 ** caller is responsible for deallocating the returned buffer.
157 */
158 extern char *CERT_GenTime2FormattedAscii (PRTime genTime, char *format);
159
160 /*
161 ** decode a SECItem containing either a SEC_ASN1_GENERALIZED_TIME
162 ** or a SEC_ASN1_UTC_TIME
163 */
164
165 extern SECStatus DER_DecodeTimeChoice(PRTime* output, const SECItem* input);
166
167 /* encode a PRTime to an ASN.1 DER SECItem containing either a
168 SEC_ASN1_GENERALIZED_TIME or a SEC_ASN1_UTC_TIME */
169
170 extern SECStatus DER_EncodeTimeChoice(PLArenaPool* arena, SECItem* output,
171 PRTime input);
172
173 SEC_END_PROTOS
174
175 #endif /* _SECDER_H_ */
176
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