vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 2 | * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved. |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 6 | #include <asn_codecs_prim.h> |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 7 | #include <BOOLEAN.h> |
| 8 | |
| 9 | /* |
| 10 | * BOOLEAN basic type description. |
| 11 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 12 | static ber_tlv_tag_t asn_DEF_BOOLEAN_tags[] = { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 13 | (ASN_TAG_CLASS_UNIVERSAL | (1 << 2)) |
| 14 | }; |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 15 | asn_TYPE_descriptor_t asn_DEF_BOOLEAN = { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 16 | "BOOLEAN", |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 17 | "BOOLEAN", |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 18 | BOOLEAN_free, |
| 19 | BOOLEAN_print, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 20 | asn_generic_no_constraint, |
| 21 | BOOLEAN_decode_ber, |
| 22 | BOOLEAN_encode_der, |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 23 | BOOLEAN_decode_xer, |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 24 | BOOLEAN_encode_xer, |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 25 | BOOLEAN_decode_uper, /* Unaligned PER decoder */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 26 | 0, /* Use generic outmost tag fetcher */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 27 | asn_DEF_BOOLEAN_tags, |
| 28 | sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]), |
| 29 | asn_DEF_BOOLEAN_tags, /* Same as above */ |
| 30 | sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]), |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 31 | 0, /* No PER visible constraints */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 32 | 0, 0, /* No members */ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 33 | 0 /* No specifics */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 34 | }; |
| 35 | |
| 36 | /* |
| 37 | * Decode BOOLEAN type. |
| 38 | */ |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 39 | asn_dec_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 40 | BOOLEAN_decode_ber(asn_codec_ctx_t *opt_codec_ctx, |
| 41 | asn_TYPE_descriptor_t *td, |
vlm | b02dcc6 | 2005-03-10 18:52:02 +0000 | [diff] [blame] | 42 | void **bool_value, const void *buf_ptr, size_t size, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 43 | int tag_mode) { |
vlm | af9cf13 | 2004-08-19 13:26:36 +0000 | [diff] [blame] | 44 | BOOLEAN_t *st = (BOOLEAN_t *)*bool_value; |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 45 | asn_dec_rval_t rval; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 46 | ber_tlv_len_t length; |
| 47 | ber_tlv_len_t lidx; |
| 48 | |
| 49 | if(st == NULL) { |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 50 | st = (BOOLEAN_t *)(*bool_value = CALLOC(1, sizeof(*st))); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 51 | if(st == NULL) { |
| 52 | rval.code = RC_FAIL; |
| 53 | rval.consumed = 0; |
| 54 | return rval; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | ASN_DEBUG("Decoding %s as BOOLEAN (tm=%d)", |
| 59 | td->name, tag_mode); |
| 60 | |
| 61 | /* |
| 62 | * Check tags. |
| 63 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 64 | rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size, |
| 65 | tag_mode, 0, &length, 0); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 66 | if(rval.code != RC_OK) |
| 67 | return rval; |
| 68 | |
| 69 | ASN_DEBUG("Boolean length is %d bytes", (int)length); |
| 70 | |
vlm | b02dcc6 | 2005-03-10 18:52:02 +0000 | [diff] [blame] | 71 | buf_ptr = ((const char *)buf_ptr) + rval.consumed; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 72 | size -= rval.consumed; |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 73 | if(length > (ber_tlv_len_t)size) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 74 | rval.code = RC_WMORE; |
| 75 | rval.consumed = 0; |
| 76 | return rval; |
| 77 | } |
| 78 | |
| 79 | /* |
| 80 | * Compute boolean value. |
| 81 | */ |
vlm | af9cf13 | 2004-08-19 13:26:36 +0000 | [diff] [blame] | 82 | for(*st = 0, lidx = 0; |
| 83 | (lidx < length) && *st == 0; lidx++) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 84 | /* |
| 85 | * Very simple approach: read bytes until the end or |
| 86 | * value is already TRUE. |
| 87 | * BOOLEAN is not supposed to contain meaningful data anyway. |
| 88 | */ |
vlm | b02dcc6 | 2005-03-10 18:52:02 +0000 | [diff] [blame] | 89 | *st |= ((const uint8_t *)buf_ptr)[lidx]; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | rval.code = RC_OK; |
| 93 | rval.consumed += length; |
| 94 | |
vlm | af9cf13 | 2004-08-19 13:26:36 +0000 | [diff] [blame] | 95 | ASN_DEBUG("Took %ld/%ld bytes to encode %s, value=%d", |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 96 | (long)rval.consumed, (long)length, |
vlm | af9cf13 | 2004-08-19 13:26:36 +0000 | [diff] [blame] | 97 | td->name, *st); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 98 | |
| 99 | return rval; |
| 100 | } |
| 101 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 102 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 103 | BOOLEAN_encode_der(asn_TYPE_descriptor_t *td, void *sptr, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 104 | int tag_mode, ber_tlv_tag_t tag, |
| 105 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 106 | asn_enc_rval_t erval; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 107 | BOOLEAN_t *st = (BOOLEAN_t *)sptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 108 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 109 | erval.encoded = der_write_tags(td, 1, tag_mode, 0, tag, cb, app_key); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 110 | if(erval.encoded == -1) { |
| 111 | erval.failed_type = td; |
| 112 | erval.structure_ptr = sptr; |
| 113 | return erval; |
| 114 | } |
| 115 | |
| 116 | if(cb) { |
| 117 | uint8_t bool_value; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 118 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 119 | bool_value = *st ? 0xff : 0; /* 0xff mandated by DER */ |
| 120 | |
| 121 | if(cb(&bool_value, 1, app_key) < 0) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 122 | erval.encoded = -1; |
| 123 | erval.failed_type = td; |
| 124 | erval.structure_ptr = sptr; |
| 125 | return erval; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | erval.encoded += 1; |
| 130 | |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 131 | _ASN_ENCODED_OK(erval); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 132 | } |
| 133 | |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 134 | |
| 135 | /* |
| 136 | * Decode the chunk of XML text encoding INTEGER. |
| 137 | */ |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 138 | static enum xer_pbd_rval |
| 139 | BOOLEAN__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) { |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 140 | BOOLEAN_t *st = (BOOLEAN_t *)sptr; |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 141 | const char *p = (const char *)chunk_buf; |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 142 | |
vlm | 80a4859 | 2005-02-25 12:10:27 +0000 | [diff] [blame] | 143 | (void)td; |
| 144 | |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 145 | if(chunk_size && p[0] == 0x3c /* '<' */) { |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 146 | switch(xer_check_tag(chunk_buf, chunk_size, "false")) { |
| 147 | case XCT_BOTH: |
| 148 | /* "<false/>" */ |
| 149 | *st = 0; |
| 150 | break; |
vlm | c70f8f3 | 2005-02-18 18:06:36 +0000 | [diff] [blame] | 151 | case XCT_UNKNOWN_BO: |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 152 | if(xer_check_tag(chunk_buf, chunk_size, "true") |
| 153 | != XCT_BOTH) |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 154 | return XPBD_BROKEN_ENCODING; |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 155 | /* "<true/>" */ |
| 156 | *st = 1; /* Or 0xff as in DER?.. */ |
| 157 | break; |
| 158 | default: |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 159 | return XPBD_BROKEN_ENCODING; |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 160 | } |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 161 | return XPBD_BODY_CONSUMED; |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 162 | } else { |
vlm | 4df9cc1 | 2005-03-09 22:19:25 +0000 | [diff] [blame] | 163 | if(xer_is_whitespace(chunk_buf, chunk_size)) |
| 164 | return XPBD_NOT_BODY_IGNORE; |
| 165 | else |
| 166 | return XPBD_BROKEN_ENCODING; |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 167 | } |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | |
| 171 | asn_dec_rval_t |
| 172 | BOOLEAN_decode_xer(asn_codec_ctx_t *opt_codec_ctx, |
| 173 | asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname, |
vlm | b02dcc6 | 2005-03-10 18:52:02 +0000 | [diff] [blame] | 174 | const void *buf_ptr, size_t size) { |
vlm | 480ce97 | 2004-10-22 08:11:25 +0000 | [diff] [blame] | 175 | |
| 176 | return xer_decode_primitive(opt_codec_ctx, td, |
| 177 | sptr, sizeof(BOOLEAN_t), opt_mname, buf_ptr, size, |
| 178 | BOOLEAN__xer_body_decode); |
| 179 | } |
| 180 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 181 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 182 | BOOLEAN_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 183 | int ilevel, enum xer_encoder_flags_e flags, |
| 184 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 185 | const BOOLEAN_t *st = (const BOOLEAN_t *)sptr; |
| 186 | asn_enc_rval_t er; |
| 187 | |
| 188 | (void)ilevel; |
| 189 | (void)flags; |
| 190 | |
| 191 | if(!st) _ASN_ENCODE_FAILED; |
| 192 | |
| 193 | if(*st) { |
| 194 | _ASN_CALLBACK("<true/>", 7); |
| 195 | er.encoded = 7; |
| 196 | } else { |
| 197 | _ASN_CALLBACK("<false/>", 8); |
| 198 | er.encoded = 8; |
| 199 | } |
| 200 | |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 201 | _ASN_ENCODED_OK(er); |
vlm | 84d551b | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 202 | cb_failed: |
| 203 | _ASN_ENCODE_FAILED; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 204 | } |
| 205 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 206 | int |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 207 | BOOLEAN_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 208 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 209 | const BOOLEAN_t *st = (const BOOLEAN_t *)sptr; |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 210 | const char *buf; |
| 211 | size_t buflen; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 212 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 213 | (void)td; /* Unused argument */ |
| 214 | (void)ilevel; /* Unused argument */ |
| 215 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 216 | if(st) { |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 217 | if(*st) { |
| 218 | buf = "TRUE"; |
| 219 | buflen = 4; |
| 220 | } else { |
| 221 | buf = "FALSE"; |
| 222 | buflen = 5; |
| 223 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 224 | } else { |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 225 | buf = "<absent>"; |
| 226 | buflen = 8; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 227 | } |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 228 | |
| 229 | return (cb(buf, buflen, app_key) < 0) ? -1 : 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | void |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 233 | BOOLEAN_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 234 | if(td && ptr && !contents_only) { |
| 235 | FREEMEM(ptr); |
| 236 | } |
| 237 | } |
| 238 | |
vlm | 337167e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 239 | asn_dec_rval_t |
| 240 | BOOLEAN_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, |
| 241 | asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) { |
| 242 | asn_dec_rval_t rv; |
| 243 | BOOLEAN_t *st = (BOOLEAN_t *)*sptr; |
| 244 | |
| 245 | (void)opt_codec_ctx; |
| 246 | (void)constraints; |
| 247 | |
| 248 | if(!st) { |
| 249 | st = (BOOLEAN_t *)(*sptr = MALLOC(sizeof(*st))); |
| 250 | if(!st) _ASN_DECODE_FAILED; |
| 251 | } |
| 252 | |
| 253 | /* |
| 254 | * Extract a single bit |
| 255 | */ |
| 256 | switch(per_get_few_bits(pd, 1)) { |
| 257 | case 1: *st = 1; break; |
| 258 | case 0: *st = 0; break; |
| 259 | case -1: default: _ASN_DECODE_FAILED; |
| 260 | } |
| 261 | |
| 262 | ASN_DEBUG("%s decoded as %s", td->name, *st ? "TRUE" : "FALSE"); |
| 263 | |
| 264 | rv.code = RC_OK; |
| 265 | rv.consumed = 1; |
| 266 | return rv; |
| 267 | } |
| 268 | |