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er.h
1
21#ifndef FREERDP_CRYPTO_ER_H
22#define FREERDP_CRYPTO_ER_H
23
24#include <freerdp/api.h>
25#include <freerdp/types.h>
26
27#include <winpr/stream.h>
28
29/* ER type */
30
31/* Class - bits 8 and 7 */
32#define ER_CLASS_MASK 0xC0
33#define ER_CLASS_UNIV 0x00 /* 0 0 */
34#define ER_CLASS_APPL 0x40 /* 0 1 */
35#define ER_CLASS_CTXT 0x80 /* 1 0 */
36#define ER_CLASS_PRIV 0xC0 /* 1 1 */
37
38/* P/C - bit 6 */
39#define ER_PC_MASK 0x20
40#define ER_PRIMITIVE 0x00 /* 0 */
41#define ER_CONSTRUCT 0x20 /* 1 */
42
43/* Tag - bits 5 to 1 */
44#define ER_TAG_MASK 0x1F
45#define ER_TAG_BOOLEAN 0x01
46#define ER_TAG_INTEGER 0x02
47#define ER_TAG_BIT_STRING 0x03
48#define ER_TAG_OCTET_STRING 0x04
49#define ER_TAG_OBJECT_IDENTIFIER 0x06
50#define ER_TAG_ENUMERATED 0x0A
51#define ER_TAG_SEQUENCE 0x10
52#define ER_TAG_SEQUENCE_OF 0x10
53#define ER_TAG_GENERAL_STRING 0x1B
54#define ER_TAG_GENERALIZED_TIME 0x18
55
56#define ER_PC(_pc) (_pc ? ER_CONSTRUCT : ER_PRIMITIVE)
57
58#ifdef __cplusplus
59extern "C"
60{
61#endif
62
63 FREERDP_API void er_read_length(wStream* s, int* length);
64 FREERDP_API int er_write_length(wStream* s, int length, BOOL flag);
65 FREERDP_API int _er_skip_length(int length);
66 FREERDP_API int er_get_content_length(int length);
67 FREERDP_API BOOL er_read_universal_tag(wStream* s, BYTE tag, BOOL pc);
68 FREERDP_API void er_write_universal_tag(wStream* s, BYTE tag, BOOL pc);
69 FREERDP_API BOOL er_read_application_tag(wStream* s, BYTE tag, int* length);
70 FREERDP_API void er_write_application_tag(wStream* s, BYTE tag, int length, BOOL flag);
71 FREERDP_API BOOL er_read_enumerated(wStream* s, BYTE* enumerated, BYTE count);
72 FREERDP_API void er_write_enumerated(wStream* s, BYTE enumerated, BYTE count, BOOL flag);
73 FREERDP_API BOOL er_read_contextual_tag(wStream* s, BYTE tag, int* length, BOOL pc);
74 FREERDP_API int er_write_contextual_tag(wStream* s, BYTE tag, int length, BOOL pc, BOOL flag);
75 FREERDP_API int er_skip_contextual_tag(int length);
76 FREERDP_API BOOL er_read_sequence_tag(wStream* s, int* length);
77 FREERDP_API int er_write_sequence_tag(wStream* s, int length, BOOL flag);
78 FREERDP_API int er_skip_sequence(int length);
79 FREERDP_API int er_skip_sequence_tag(int length);
80 FREERDP_API BOOL er_read_bit_string(wStream* s, int* length, BYTE* padding);
81 FREERDP_API BOOL er_write_bit_string_tag(wStream* s, UINT32 length, BYTE padding, BOOL flag);
82 FREERDP_API BOOL er_read_octet_string(wStream* s, int* length);
83 FREERDP_API void er_write_octet_string(wStream* s, BYTE* oct_str, int length, BOOL flag);
84 FREERDP_API int er_write_octet_string_tag(wStream* s, int length, BOOL flag);
85 FREERDP_API int er_skip_octet_string(int length);
86 FREERDP_API BOOL er_read_BOOL(wStream* s, BOOL* value);
87 FREERDP_API void er_write_BOOL(wStream* s, BOOL value);
88 FREERDP_API BOOL er_read_integer(wStream* s, UINT32* value);
89 FREERDP_API int er_write_integer(wStream* s, INT32 value);
90 FREERDP_API BOOL er_read_integer_length(wStream* s, int* length);
91 FREERDP_API int er_skip_integer(INT32 value);
92
93#ifdef __cplusplus
94}
95#endif
96
97#endif /* FREERDP_CRYPTO_ER_H */