1 /* 2 * Copyright (c) 2007 Reyk Floeter <reyk@vantronix.net> 3 * Copyright (c) 2006, 2007 Claudio Jeker <claudio@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 struct ber_element { 19 struct ber_element *be_next; 20 unsigned long be_type; 21 unsigned long be_encoding; 22 size_t be_len; 23 int be_free; 24 uint8_t be_class; 25 union { 26 struct ber_element *bv_sub; 27 void *bv_val; 28 long long bv_numeric; 29 } be_union; 30 #define be_sub be_union.bv_sub 31 #define be_val be_union.bv_val 32 #define be_numeric be_union.bv_numeric 33 }; 34 35 struct ber { 36 int fd; 37 unsigned char *br_wbuf; 38 unsigned char *br_wptr; 39 unsigned char *br_wend; 40 unsigned char *br_rbuf; 41 unsigned char *br_rptr; 42 unsigned char *br_rend; 43 44 unsigned long (*br_application)(struct ber_element *); 45 }; 46 47 /* well-known ber_element types */ 48 #define BER_TYPE_DEFAULT ((unsigned long)-1) 49 #define BER_TYPE_EOC 0 50 #define BER_TYPE_BOOLEAN 1 51 #define BER_TYPE_INTEGER 2 52 #define BER_TYPE_BITSTRING 3 53 #define BER_TYPE_OCTETSTRING 4 54 #define BER_TYPE_NULL 5 55 #define BER_TYPE_OBJECT 6 56 #define BER_TYPE_ENUMERATED 10 57 #define BER_TYPE_SEQUENCE 16 58 #define BER_TYPE_SET 17 59 60 /* ber classes */ 61 #define BER_CLASS_UNIVERSAL 0x0 62 #define BER_CLASS_UNIV BER_CLASS_UNIVERSAL 63 #define BER_CLASS_APPLICATION 0x1 64 #define BER_CLASS_APP BER_CLASS_APPLICATION 65 #define BER_CLASS_CONTEXT 0x2 66 #define BER_CLASS_PRIVATE 0x3 67 #define BER_CLASS_MASK 0x3 68 69 /* common definitions */ 70 #define BER_MIN_OID_LEN 2 /* OBJECT */ 71 #define BER_MAX_OID_LEN 32 /* OBJECT */ 72 73 struct ber_oid { 74 uint32_t bo_id[BER_MAX_OID_LEN + 1]; 75 size_t bo_n; 76 }; 77 78 __BEGIN_DECLS 79 struct ber_element *ber_get_element(unsigned long); 80 void ber_set_header(struct ber_element *, int, 81 unsigned long); 82 void ber_link_elements(struct ber_element *, 83 struct ber_element *); 84 struct ber_element *ber_unlink_elements(struct ber_element *); 85 void ber_replace_elements(struct ber_element *, 86 struct ber_element *); 87 struct ber_element *ber_add_sequence(struct ber_element *); 88 struct ber_element *ber_add_set(struct ber_element *); 89 struct ber_element *ber_add_integer(struct ber_element *, long long); 90 int ber_get_integer(struct ber_element *, long long *); 91 struct ber_element *ber_add_enumerated(struct ber_element *, long long); 92 int ber_get_enumerated(struct ber_element *, long long *); 93 struct ber_element *ber_add_boolean(struct ber_element *, int); 94 int ber_get_boolean(struct ber_element *, int *); 95 struct ber_element *ber_add_string(struct ber_element *, const char *); 96 struct ber_element *ber_add_nstring(struct ber_element *, const char *, 97 size_t); 98 int ber_get_string(struct ber_element *, char **); 99 int ber_get_nstring(struct ber_element *, void **, 100 size_t *); 101 struct ber_element *ber_add_bitstring(struct ber_element *, const void *, 102 size_t); 103 int ber_get_bitstring(struct ber_element *, void **, 104 size_t *); 105 struct ber_element *ber_add_null(struct ber_element *); 106 int ber_get_null(struct ber_element *); 107 struct ber_element *ber_add_eoc(struct ber_element *); 108 int ber_get_eoc(struct ber_element *); 109 struct ber_element *ber_add_oid(struct ber_element *, struct ber_oid *); 110 struct ber_element *ber_add_noid(struct ber_element *, struct ber_oid *, int); 111 struct ber_element *ber_add_oidstring(struct ber_element *, const char *); 112 int ber_get_oid(struct ber_element *, struct ber_oid *); 113 size_t ber_oid2ber(struct ber_oid *, uint8_t *, size_t); 114 int ber_string2oid(const char *, struct ber_oid *); 115 struct ber_element *ber_printf_elements(struct ber_element *, char *, ...); 116 int ber_scanf_elements(struct ber_element *, char *, ...); 117 ssize_t ber_get_writebuf(struct ber *, void **); 118 int ber_write_elements(struct ber *, struct ber_element *); 119 void ber_set_readbuf(struct ber *, void *, size_t); 120 struct ber_element *ber_read_elements(struct ber *, struct ber_element *); 121 void ber_free_elements(struct ber_element *); 122 size_t ber_calc_len(struct ber_element *); 123 void ber_set_application(struct ber *, 124 unsigned long (*)(struct ber_element *)); 125 void ber_free(struct ber *); 126 __END_DECLS 127