1 /* $OpenBSD: ber.h,v 1.2 2008/12/29 15:48:13 aschrijver Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Reyk Floeter <reyk@vantronix.net> 5 * Copyright (c) 2006, 2007 Claudio Jeker <claudio@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 struct ber_element { 21 struct ber_element *be_next; 22 unsigned long be_type; 23 unsigned long be_encoding; 24 size_t be_len; 25 int be_free; 26 u_int8_t be_class; 27 union { 28 struct ber_element *bv_sub; 29 void *bv_val; 30 long long bv_numeric; 31 } be_union; 32 #define be_sub be_union.bv_sub 33 #define be_val be_union.bv_val 34 #define be_numeric be_union.bv_numeric 35 }; 36 37 struct ber { 38 int fd; 39 u_char *br_wbuf; 40 u_char *br_wptr; 41 u_char *br_wend; 42 u_char *br_rbuf; 43 u_char *br_rptr; 44 u_char *br_rend; 45 46 unsigned long (*br_application)(struct ber_element *); 47 }; 48 49 /* well-known ber_element types */ 50 #define BER_TYPE_DEFAULT ((unsigned long)-1) 51 #define BER_TYPE_EOC 0 52 #define BER_TYPE_BOOLEAN 1 53 #define BER_TYPE_INTEGER 2 54 #define BER_TYPE_BITSTRING 3 55 #define BER_TYPE_OCTETSTRING 4 56 #define BER_TYPE_NULL 5 57 #define BER_TYPE_OBJECT 6 58 #define BER_TYPE_ENUMERATED 10 59 #define BER_TYPE_SEQUENCE 16 60 #define BER_TYPE_SET 17 61 62 /* ber classes */ 63 #define BER_CLASS_UNIVERSAL 0x0 64 #define BER_CLASS_UNIV BER_CLASS_UNIVERSAL 65 #define BER_CLASS_APPLICATION 0x1 66 #define BER_CLASS_APP BER_CLASS_APPLICATION 67 #define BER_CLASS_CONTEXT 0x2 68 #define BER_CLASS_PRIVATE 0x3 69 #define BER_CLASS_MASK 0x3 70 71 /* common definitions */ 72 #define BER_MIN_OID_LEN 2 /* OBJECT */ 73 #define BER_MAX_OID_LEN 32 /* OBJECT */ 74 75 struct ber_oid { 76 u_int32_t bo_id[BER_MAX_OID_LEN + 1]; 77 size_t bo_n; 78 }; 79 80 __BEGIN_DECLS 81 struct ber_element *ber_get_element(unsigned long); 82 void ber_set_header(struct ber_element *, int, 83 unsigned long); 84 void ber_link_elements(struct ber_element *, 85 struct ber_element *); 86 struct ber_element *ber_unlink_elements(struct ber_element *); 87 void ber_replace_elements(struct ber_element *, 88 struct ber_element *); 89 struct ber_element *ber_add_sequence(struct ber_element *); 90 struct ber_element *ber_add_set(struct ber_element *); 91 struct ber_element *ber_add_integer(struct ber_element *, long long); 92 int ber_get_integer(struct ber_element *, long long *); 93 struct ber_element *ber_add_enumerated(struct ber_element *, long long); 94 int ber_get_enumerated(struct ber_element *, long long *); 95 struct ber_element *ber_add_boolean(struct ber_element *, int); 96 int ber_get_boolean(struct ber_element *, int *); 97 struct ber_element *ber_add_string(struct ber_element *, const char *); 98 struct ber_element *ber_add_nstring(struct ber_element *, const char *, 99 size_t); 100 int ber_get_string(struct ber_element *, char **); 101 int ber_get_nstring(struct ber_element *, void **, 102 size_t *); 103 struct ber_element *ber_add_bitstring(struct ber_element *, const void *, 104 size_t); 105 int ber_get_bitstring(struct ber_element *, void **, 106 size_t *); 107 struct ber_element *ber_add_null(struct ber_element *); 108 int ber_get_null(struct ber_element *); 109 struct ber_element *ber_add_eoc(struct ber_element *); 110 int ber_get_eoc(struct ber_element *); 111 struct ber_element *ber_add_oid(struct ber_element *, struct ber_oid *); 112 struct ber_element *ber_add_noid(struct ber_element *, struct ber_oid *, int); 113 struct ber_element *ber_add_oidstring(struct ber_element *, const char *); 114 int ber_get_oid(struct ber_element *, struct ber_oid *); 115 size_t ber_oid2ber(struct ber_oid *, u_int8_t *, size_t); 116 int ber_string2oid(const char *, struct ber_oid *); 117 struct ber_element *ber_printf_elements(struct ber_element *, char *, ...); 118 int ber_scanf_elements(struct ber_element *, char *, ...); 119 ssize_t ber_get_writebuf(struct ber *, void **); 120 int ber_write_elements(struct ber *, struct ber_element *); 121 void ber_set_readbuf(struct ber *, void *, size_t); 122 struct ber_element *ber_read_elements(struct ber *, struct ber_element *); 123 void ber_free_elements(struct ber_element *); 124 size_t ber_calc_len(struct ber_element *); 125 void ber_set_application(struct ber *, 126 unsigned long (*)(struct ber_element *)); 127 void ber_free(struct ber *); 128 __END_DECLS 129