Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved. |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 6 | #include <ANY.h> |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 7 | #include <errno.h> |
| 8 | |
Bi-Ruei, Chiu | 1fa31c9 | 2016-05-16 13:50:09 +0800 | [diff] [blame] | 9 | asn_OCTET_STRING_specifics_t asn_SPC_ANY_specs = { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 10 | sizeof(ANY_t), |
| 11 | offsetof(ANY_t, _asn_ctx), |
Lev Walkin | 3a4689a | 2006-11-24 11:20:27 +0000 | [diff] [blame] | 12 | ASN_OSUBV_ANY |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 13 | }; |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 14 | asn_TYPE_operation_t asn_OP_ANY = { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 15 | OCTET_STRING_free, |
| 16 | OCTET_STRING_print, |
Lev Walkin | cd2f48e | 2017-08-10 02:14:59 -0700 | [diff] [blame] | 17 | OCTET_STRING_compare, |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 18 | OCTET_STRING_decode_ber, |
| 19 | OCTET_STRING_encode_der, |
Lev Walkin | dc06f6b | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 20 | OCTET_STRING_decode_xer_hex, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 21 | ANY_encode_xer, |
Lev Walkin | cc15947 | 2017-07-06 08:26:36 -0700 | [diff] [blame] | 22 | #ifdef ASN_DISABLE_OER_SUPPORT |
| 23 | 0, |
| 24 | 0, |
| 25 | #else |
| 26 | 0, |
| 27 | 0, |
| 28 | #endif /* ASN_DISABLE_OER_SUPPORT */ |
Lev Walkin | b33425f | 2017-07-14 14:59:52 +0400 | [diff] [blame] | 29 | #ifdef ASN_DISABLE_PER_SUPPORT |
| 30 | 0, 0, |
| 31 | #else |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 32 | ANY_decode_uper, |
| 33 | ANY_encode_uper, |
Lev Walkin | b33425f | 2017-07-14 14:59:52 +0400 | [diff] [blame] | 34 | #endif /* ASN_DISABLE_PER_SUPPORT */ |
Lev Walkin | a5972be | 2017-09-29 23:15:58 -0700 | [diff] [blame] | 35 | 0, /* Random fill is not defined for ANY type */ |
Bi-Ruei, Chiu | 1f87ac0 | 2017-08-20 01:25:45 +0800 | [diff] [blame] | 36 | 0 /* Use generic outmost tag fetcher */ |
| 37 | }; |
| 38 | asn_TYPE_descriptor_t asn_DEF_ANY = { |
| 39 | "ANY", |
| 40 | "ANY", |
| 41 | &asn_OP_ANY, |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 42 | 0, 0, 0, 0, |
Lev Walkin | a5972be | 2017-09-29 23:15:58 -0700 | [diff] [blame] | 43 | { 0, 0, asn_generic_no_constraint }, /* No constraints */ |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 44 | 0, 0, /* No members */ |
Bi-Ruei, Chiu | 419ac3a | 2016-05-14 15:27:19 +0800 | [diff] [blame] | 45 | &asn_SPC_ANY_specs, |
Lev Walkin | a737f3b | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 46 | }; |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 47 | |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 48 | #undef RETURN |
| 49 | #define RETURN(_code) \ |
| 50 | do { \ |
| 51 | asn_dec_rval_t tmprval; \ |
| 52 | tmprval.code = _code; \ |
| 53 | tmprval.consumed = consumed_myself; \ |
| 54 | return tmprval; \ |
| 55 | } while(0) |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 56 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 57 | asn_enc_rval_t |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 58 | ANY_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 59 | int ilevel, enum xer_encoder_flags_e flags, |
| 60 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 61 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 62 | if(flags & XER_F_CANONICAL) { |
| 63 | /* |
| 64 | * Canonical XER-encoding of ANY type is not supported. |
| 65 | */ |
Lev Walkin | 7c1dc05 | 2016-03-14 03:08:15 -0700 | [diff] [blame] | 66 | ASN__ENCODE_FAILED; |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 67 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 68 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 69 | /* Dump as binary */ |
| 70 | return OCTET_STRING_encode_xer(td, sptr, ilevel, flags, cb, app_key); |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 71 | } |
| 72 | |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 73 | struct _callback_arg { |
| 74 | uint8_t *buffer; |
| 75 | size_t offset; |
| 76 | size_t size; |
| 77 | }; |
| 78 | |
| 79 | static int ANY__consume_bytes(const void *buffer, size_t size, void *key); |
| 80 | |
| 81 | int |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 82 | ANY_fromType(ANY_t *st, asn_TYPE_descriptor_t *td, void *sptr) { |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 83 | struct _callback_arg arg; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 84 | asn_enc_rval_t erval; |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 85 | |
| 86 | if(!st || !td) { |
| 87 | errno = EINVAL; |
| 88 | return -1; |
| 89 | } |
| 90 | |
| 91 | if(!sptr) { |
| 92 | if(st->buf) FREEMEM(st->buf); |
| 93 | st->size = 0; |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | arg.offset = arg.size = 0; |
| 98 | arg.buffer = 0; |
| 99 | |
| 100 | erval = der_encode(td, sptr, ANY__consume_bytes, &arg); |
| 101 | if(erval.encoded == -1) { |
| 102 | if(arg.buffer) FREEMEM(arg.buffer); |
| 103 | return -1; |
| 104 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 105 | assert((size_t)erval.encoded == arg.offset); |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 106 | |
| 107 | if(st->buf) FREEMEM(st->buf); |
| 108 | st->buf = arg.buffer; |
| 109 | st->size = arg.offset; |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | ANY_t * |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 115 | ANY_new_fromType(asn_TYPE_descriptor_t *td, void *sptr) { |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 116 | ANY_t tmp; |
| 117 | ANY_t *st; |
| 118 | |
| 119 | if(!td || !sptr) { |
| 120 | errno = EINVAL; |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | memset(&tmp, 0, sizeof(tmp)); |
| 125 | |
| 126 | if(ANY_fromType(&tmp, td, sptr)) return 0; |
| 127 | |
Lev Walkin | 40fecb0 | 2005-01-22 00:11:28 +0000 | [diff] [blame] | 128 | st = (ANY_t *)CALLOC(1, sizeof(ANY_t)); |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 129 | if(st) { |
| 130 | *st = tmp; |
| 131 | return st; |
| 132 | } else { |
| 133 | FREEMEM(tmp.buf); |
| 134 | return 0; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | int |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 139 | ANY_to_type(ANY_t *st, asn_TYPE_descriptor_t *td, void **struct_ptr) { |
Lev Walkin | dc06f6b | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 140 | asn_dec_rval_t rval; |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 141 | void *newst = 0; |
| 142 | |
| 143 | if(!st || !td || !struct_ptr) { |
| 144 | errno = EINVAL; |
| 145 | return -1; |
| 146 | } |
| 147 | |
| 148 | if(st->buf == 0) { |
| 149 | /* Nothing to convert, make it empty. */ |
| 150 | *struct_ptr = (void *)0; |
| 151 | return 0; |
| 152 | } |
| 153 | |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 154 | rval = ber_decode(0, td, (void **)&newst, st->buf, st->size); |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 155 | if(rval.code == RC_OK) { |
| 156 | *struct_ptr = newst; |
| 157 | return 0; |
| 158 | } else { |
| 159 | /* Remove possibly partially decoded data. */ |
Lev Walkin | adcb586 | 2006-03-17 02:11:12 +0000 | [diff] [blame] | 160 | ASN_STRUCT_FREE(*td, newst); |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 161 | return -1; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | static int ANY__consume_bytes(const void *buffer, size_t size, void *key) { |
| 166 | struct _callback_arg *arg = (struct _callback_arg *)key; |
| 167 | |
| 168 | if((arg->offset + size) >= arg->size) { |
| 169 | size_t nsize = (arg->size ? arg->size << 2 : 16) + size; |
| 170 | void *p = REALLOC(arg->buffer, nsize); |
| 171 | if(!p) return -1; |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 172 | arg->buffer = (uint8_t *)p; |
Lev Walkin | d563d39 | 2004-09-13 08:26:57 +0000 | [diff] [blame] | 173 | arg->size = nsize; |
| 174 | } |
| 175 | |
| 176 | memcpy(arg->buffer + arg->offset, buffer, size); |
| 177 | arg->offset += size; |
| 178 | assert(arg->offset < arg->size); |
| 179 | |
| 180 | return 0; |
| 181 | } |
| 182 | |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 183 | #ifndef ASN_DISABLE_PER_SUPPORT |
| 184 | |
| 185 | asn_dec_rval_t |
Lev Walkin | afbf2a9 | 2017-09-12 23:30:27 -0700 | [diff] [blame] | 186 | ANY_decode_uper(const asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, |
Lev Walkin | 494fb70 | 2017-08-07 20:07:00 -0700 | [diff] [blame] | 187 | const asn_per_constraints_t *constraints, void **sptr, |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 188 | asn_per_data_t *pd) { |
Lev Walkin | d84f603 | 2017-10-03 16:33:59 -0700 | [diff] [blame] | 189 | const asn_OCTET_STRING_specifics_t *specs = |
| 190 | td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 191 | : &asn_SPC_ANY_specs; |
| 192 | size_t consumed_myself = 0; |
| 193 | int repeat; |
| 194 | ANY_t *st = (ANY_t *)*sptr; |
| 195 | |
Lev Walkin | 6309907 | 2017-08-06 23:46:26 -0700 | [diff] [blame] | 196 | (void)opt_codec_ctx; |
| 197 | (void)constraints; |
| 198 | |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 199 | /* |
| 200 | * Allocate the structure. |
| 201 | */ |
| 202 | if(!st) { |
| 203 | st = (ANY_t *)(*sptr = CALLOC(1, specs->struct_size)); |
| 204 | if(!st) RETURN(RC_FAIL); |
| 205 | } |
| 206 | |
| 207 | ASN_DEBUG("PER Decoding ANY type"); |
| 208 | |
| 209 | |
| 210 | st->size = 0; |
| 211 | do { |
| 212 | ssize_t raw_len; |
| 213 | ssize_t len_bytes; |
| 214 | ssize_t len_bits; |
| 215 | void *p; |
| 216 | int ret; |
| 217 | |
| 218 | /* Get the PER length */ |
Lev Walkin | 9d1b45f | 2017-10-01 17:04:48 -0700 | [diff] [blame] | 219 | raw_len = uper_get_length(pd, -1, 0, &repeat); |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 220 | if(raw_len < 0) RETURN(RC_WMORE); |
Lev Walkin | 5d947a8 | 2017-10-03 01:04:03 -0700 | [diff] [blame] | 221 | if(raw_len == 0 && st->buf) break; |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 222 | |
| 223 | ASN_DEBUG("Got PER length len %zu, %s (%s)", raw_len, |
| 224 | repeat ? "repeat" : "once", td->name); |
| 225 | len_bytes = raw_len; |
| 226 | len_bits = len_bytes * 8; |
| 227 | |
| 228 | p = REALLOC(st->buf, st->size + len_bytes + 1); |
| 229 | if(!p) RETURN(RC_FAIL); |
| 230 | st->buf = (uint8_t *)p; |
| 231 | |
| 232 | ret = per_get_many_bits(pd, &st->buf[st->size], 0, len_bits); |
| 233 | if(ret < 0) RETURN(RC_WMORE); |
| 234 | consumed_myself += len_bits; |
| 235 | st->size += len_bytes; |
| 236 | } while(repeat); |
| 237 | st->buf[st->size] = 0; /* nul-terminate */ |
| 238 | |
| 239 | RETURN(RC_OK); |
| 240 | } |
| 241 | |
| 242 | asn_enc_rval_t |
Lev Walkin | 494fb70 | 2017-08-07 20:07:00 -0700 | [diff] [blame] | 243 | ANY_encode_uper(asn_TYPE_descriptor_t *td, |
| 244 | const asn_per_constraints_t *constraints, void *sptr, |
| 245 | asn_per_outp_t *po) { |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 246 | const ANY_t *st = (const ANY_t *)sptr; |
| 247 | asn_enc_rval_t er = {0, 0, 0}; |
| 248 | const uint8_t *buf; |
| 249 | size_t size; |
| 250 | int ret; |
| 251 | |
Lev Walkin | 6309907 | 2017-08-06 23:46:26 -0700 | [diff] [blame] | 252 | (void)constraints; |
| 253 | |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 254 | if(!st || (!st->buf && st->size)) ASN__ENCODE_FAILED; |
| 255 | |
| 256 | buf = st->buf; |
| 257 | size = st->size; |
Lev Walkin | 5d947a8 | 2017-10-03 01:04:03 -0700 | [diff] [blame] | 258 | do { |
| 259 | int need_eom = 0; |
| 260 | ssize_t may_save = uper_put_length(po, size, &need_eom); |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 261 | if(may_save < 0) ASN__ENCODE_FAILED; |
| 262 | |
| 263 | ret = per_put_many_bits(po, buf, may_save * 8); |
| 264 | if(ret) ASN__ENCODE_FAILED; |
| 265 | |
| 266 | buf += may_save; |
| 267 | size -= may_save; |
| 268 | assert(!(may_save & 0x07) || !size); |
Lev Walkin | 5d947a8 | 2017-10-03 01:04:03 -0700 | [diff] [blame] | 269 | if(need_eom && uper_put_length(po, 0, 0)) |
| 270 | ASN__ENCODE_FAILED; /* End of Message length */ |
| 271 | } while(size); |
Lev Walkin | 6bd4b29 | 2017-08-06 00:59:05 -0700 | [diff] [blame] | 272 | |
| 273 | ASN__ENCODED_OK(er); |
| 274 | } |
| 275 | |
| 276 | #endif /* ASN_DISABLE_PER_SUPPORT */ |
| 277 | |