vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 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 | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | #include <constr_SEQUENCE.h> |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 7 | #include <assert.h> |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 8 | |
| 9 | /* |
| 10 | * Number of bytes left for this structure. |
| 11 | * (ctx->left) indicates the number of bytes _transferred_ for the structure. |
| 12 | * (size) contains the number of bytes in the buffer passed. |
| 13 | */ |
vlm | c519061 | 2004-08-18 04:53:32 +0000 | [diff] [blame] | 14 | #define LEFT ((size<(size_t)ctx->left)?size:(size_t)ctx->left) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 15 | |
| 16 | /* |
| 17 | * If the subprocessor function returns with an indication that it wants |
| 18 | * more data, it may well be a fatal decoding problem, because the |
| 19 | * size is constrained by the <TLV>'s L, even if the buffer size allows |
| 20 | * reading more data. |
| 21 | * For example, consider the buffer containing the following TLVs: |
| 22 | * <T:5><L:1><V> <T:6>... |
| 23 | * The TLV length clearly indicates that one byte is expected in V, but |
| 24 | * if the V processor returns with "want more data" even if the buffer |
| 25 | * contains way more data than the V processor have seen. |
| 26 | */ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 27 | #define SIZE_VIOLATION (ctx->left >= 0 && (size_t)ctx->left <= size) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 28 | |
| 29 | /* |
| 30 | * This macro "eats" the part of the buffer which is definitely "consumed", |
| 31 | * i.e. was correctly converted into local representation or rightfully skipped. |
| 32 | */ |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 33 | #undef ADVANCE |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 34 | #define ADVANCE(num_bytes) do { \ |
| 35 | size_t num = num_bytes; \ |
vlm | d86c925 | 2004-08-25 01:34:11 +0000 | [diff] [blame] | 36 | ptr = ((char *)ptr) + num; \ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 37 | size -= num; \ |
| 38 | if(ctx->left >= 0) \ |
| 39 | ctx->left -= num; \ |
| 40 | consumed_myself += num; \ |
| 41 | } while(0) |
| 42 | |
| 43 | /* |
| 44 | * Switch to the next phase of parsing. |
| 45 | */ |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 46 | #undef NEXT_PHASE |
| 47 | #undef PHASE_OUT |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 48 | #define NEXT_PHASE(ctx) do { \ |
| 49 | ctx->phase++; \ |
| 50 | ctx->step = 0; \ |
| 51 | } while(0) |
| 52 | #define PHASE_OUT(ctx) do { ctx->phase = 10; } while(0) |
| 53 | |
| 54 | /* |
| 55 | * Return a standardized complex structure. |
| 56 | */ |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 57 | #undef RETURN |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 58 | #define RETURN(_code) do { \ |
| 59 | rval.code = _code; \ |
| 60 | rval.consumed = consumed_myself;\ |
| 61 | return rval; \ |
| 62 | } while(0) |
| 63 | |
| 64 | /* |
| 65 | * Check whether we are inside the extensions group. |
| 66 | */ |
| 67 | #define IN_EXTENSION_GROUP(specs, memb_idx) \ |
| 68 | ( ((memb_idx) > (specs)->ext_after) \ |
| 69 | &&((memb_idx) < (specs)->ext_before)) |
| 70 | |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 71 | |
| 72 | /* |
| 73 | * Tags are canonically sorted in the tag2element map. |
| 74 | */ |
| 75 | static int |
| 76 | _t2e_cmp(const void *ap, const void *bp) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 77 | const asn_TYPE_tag2member_t *a = (const asn_TYPE_tag2member_t *)ap; |
| 78 | const asn_TYPE_tag2member_t *b = (const asn_TYPE_tag2member_t *)bp; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 79 | |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 80 | int a_class = BER_TAG_CLASS(a->el_tag); |
| 81 | int b_class = BER_TAG_CLASS(b->el_tag); |
| 82 | |
| 83 | if(a_class == b_class) { |
| 84 | ber_tlv_tag_t a_value = BER_TAG_VALUE(a->el_tag); |
| 85 | ber_tlv_tag_t b_value = BER_TAG_VALUE(b->el_tag); |
| 86 | |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 87 | if(a_value == b_value) { |
vlm | e4ee6ee | 2004-06-14 14:11:14 +0000 | [diff] [blame] | 88 | if(a->el_no > b->el_no) |
| 89 | return 1; |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 90 | /* |
| 91 | * Important: we do not check |
vlm | e4ee6ee | 2004-06-14 14:11:14 +0000 | [diff] [blame] | 92 | * for a->el_no <= b->el_no! |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 93 | */ |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 94 | return 0; |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 95 | } else if(a_value < b_value) |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 96 | return -1; |
| 97 | else |
| 98 | return 1; |
| 99 | } else if(a_class < b_class) { |
| 100 | return -1; |
| 101 | } else { |
| 102 | return 1; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 107 | /* |
| 108 | * The decoder of the SEQUENCE type. |
| 109 | */ |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 110 | asn_dec_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 111 | SEQUENCE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 112 | void **struct_ptr, void *ptr, size_t size, int tag_mode) { |
| 113 | /* |
| 114 | * Bring closer parts of structure description. |
| 115 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 116 | asn_SEQUENCE_specifics_t *specs = (asn_SEQUENCE_specifics_t *)td->specifics; |
| 117 | asn_TYPE_member_t *elements = td->elements; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 118 | |
| 119 | /* |
| 120 | * Parts of the structure being constructed. |
| 121 | */ |
| 122 | void *st = *struct_ptr; /* Target structure. */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 123 | asn_struct_ctx_t *ctx; /* Decoder context */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 124 | |
| 125 | ber_tlv_tag_t tlv_tag; /* T from TLV */ |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 126 | asn_dec_rval_t rval; /* Return code from subparsers */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 127 | |
| 128 | ssize_t consumed_myself = 0; /* Consumed bytes from ptr */ |
| 129 | int edx; /* SEQUENCE element's index */ |
| 130 | |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 131 | ASN_DEBUG("Decoding %s as SEQUENCE", td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 132 | |
| 133 | /* |
| 134 | * Create the target structure if it is not present already. |
| 135 | */ |
| 136 | if(st == 0) { |
| 137 | st = *struct_ptr = CALLOC(1, specs->struct_size); |
| 138 | if(st == 0) { |
| 139 | RETURN(RC_FAIL); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | * Restore parsing context. |
| 145 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 146 | ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 147 | |
| 148 | /* |
| 149 | * Start to parse where left previously |
| 150 | */ |
| 151 | switch(ctx->phase) { |
| 152 | case 0: |
| 153 | /* |
| 154 | * PHASE 0. |
| 155 | * Check that the set of tags associated with given structure |
| 156 | * perfectly fits our expectations. |
| 157 | */ |
| 158 | |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 159 | rval = ber_check_tags(opt_codec_ctx, td, ctx, ptr, size, |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 160 | tag_mode, 1, &ctx->left, 0); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 161 | if(rval.code != RC_OK) { |
| 162 | ASN_DEBUG("%s tagging check failed: %d", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 163 | td->name, rval.code); |
vlm | 1cc0f2e | 2004-10-05 06:36:57 +0000 | [diff] [blame] | 164 | return rval; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | if(ctx->left >= 0) |
| 168 | ctx->left += rval.consumed; /* ?Substracted below! */ |
| 169 | ADVANCE(rval.consumed); |
| 170 | |
| 171 | NEXT_PHASE(ctx); |
| 172 | |
| 173 | ASN_DEBUG("Structure consumes %ld bytes, buffer %ld", |
| 174 | (long)ctx->left, (long)size); |
| 175 | |
| 176 | /* Fall through */ |
| 177 | case 1: |
| 178 | /* |
| 179 | * PHASE 1. |
| 180 | * From the place where we've left it previously, |
| 181 | * try to decode the next member from the list of |
| 182 | * this structure's elements. |
| 183 | * (ctx->step) stores the member being processed |
| 184 | * between invocations and the microphase {0,1} of parsing |
| 185 | * that member: |
| 186 | * step = (<member_number> * 2 + <microphase>). |
| 187 | */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 188 | for(edx = (ctx->step >> 1); edx < td->elements_count; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 189 | edx++, ctx->step = (ctx->step & ~1) + 2) { |
| 190 | void *memb_ptr; /* Pointer to the member */ |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 191 | void **memb_ptr2; /* Pointer to that pointer */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 192 | ssize_t tag_len; /* Length of TLV's T */ |
| 193 | int opt_edx_end; /* Next non-optional element */ |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 194 | int use_bsearch; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 195 | int n; |
| 196 | |
| 197 | if(ctx->step & 1) |
| 198 | goto microphase2; |
| 199 | |
| 200 | /* |
| 201 | * MICROPHASE 1: Synchronize decoding. |
| 202 | */ |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 203 | ASN_DEBUG("In %s SEQUENCE left %d, edx=%d flags=%d" |
| 204 | " opt=%d ec=%d", |
| 205 | td->name, (int)ctx->left, edx, |
| 206 | elements[edx].flags, elements[edx].optional, |
| 207 | td->elements_count); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 208 | |
| 209 | if(ctx->left == 0 /* No more stuff is expected */ |
| 210 | && ( |
| 211 | /* Explicit OPTIONAL specification reaches the end */ |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 212 | (edx + elements[edx].optional |
| 213 | == td->elements_count) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 214 | || |
| 215 | /* All extensions are optional */ |
| 216 | (IN_EXTENSION_GROUP(specs, edx) |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 217 | && specs->ext_before > td->elements_count) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 218 | ) |
| 219 | ) { |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 220 | ASN_DEBUG("End of SEQUENCE %s", td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 221 | /* |
| 222 | * Found the legitimate end of the structure. |
| 223 | */ |
| 224 | PHASE_OUT(ctx); |
| 225 | RETURN(RC_OK); |
| 226 | } |
| 227 | |
| 228 | /* |
| 229 | * Fetch the T from TLV. |
| 230 | */ |
| 231 | tag_len = ber_fetch_tag(ptr, LEFT, &tlv_tag); |
vlm | 1308d2b | 2004-09-10 15:49:15 +0000 | [diff] [blame] | 232 | ASN_DEBUG("Current tag in %s SEQUENCE for element %d " |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 233 | "(%s) is %s encoded in %d bytes, of frame %ld", |
vlm | 1308d2b | 2004-09-10 15:49:15 +0000 | [diff] [blame] | 234 | td->name, edx, elements[edx].name, |
| 235 | ber_tlv_tag_string(tlv_tag), (int)tag_len, (long)LEFT); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 236 | switch(tag_len) { |
| 237 | case 0: if(!SIZE_VIOLATION) RETURN(RC_WMORE); |
| 238 | /* Fall through */ |
| 239 | case -1: RETURN(RC_FAIL); |
| 240 | } |
| 241 | |
vlm | 1cc0f2e | 2004-10-05 06:36:57 +0000 | [diff] [blame] | 242 | if(ctx->left < 0 && ((uint8_t *)ptr)[0] == 0) { |
| 243 | if(LEFT < 2) { |
| 244 | if(SIZE_VIOLATION) |
| 245 | RETURN(RC_FAIL); |
| 246 | else |
| 247 | RETURN(RC_WMORE); |
| 248 | } else if(((uint8_t *)ptr)[1] == 0) { |
| 249 | ASN_DEBUG("edx = %d, opt = %d, ec=%d", |
| 250 | edx, elements[edx].optional, |
| 251 | td->elements_count); |
| 252 | if((edx + elements[edx].optional |
| 253 | == td->elements_count) |
| 254 | || (IN_EXTENSION_GROUP(specs, edx) |
| 255 | && specs->ext_before |
| 256 | > td->elements_count)) { |
| 257 | /* |
| 258 | * Yeah, baby! Found the terminator |
| 259 | * of the indefinite length structure. |
| 260 | */ |
| 261 | /* |
| 262 | * Proceed to the canonical |
| 263 | * finalization function. |
| 264 | * No advancing is necessary. |
| 265 | */ |
| 266 | goto phase3; |
| 267 | } |
| 268 | } |
| 269 | } |
| 270 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 271 | /* |
| 272 | * Find the next available type with this tag. |
| 273 | */ |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 274 | use_bsearch = 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 275 | opt_edx_end = edx + elements[edx].optional + 1; |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 276 | if(opt_edx_end > td->elements_count) |
| 277 | opt_edx_end = td->elements_count; /* Cap */ |
vlm | 5d219bf | 2004-07-01 00:48:04 +0000 | [diff] [blame] | 278 | else if(opt_edx_end - edx > 8) { |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 279 | /* Limit the scope of linear search... */ |
vlm | 5d219bf | 2004-07-01 00:48:04 +0000 | [diff] [blame] | 280 | opt_edx_end = edx + 8; |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 281 | use_bsearch = 1; |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 282 | /* ... and resort to bsearch() */ |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 283 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 284 | for(n = edx; n < opt_edx_end; n++) { |
| 285 | if(BER_TAGS_EQUAL(tlv_tag, elements[n].tag)) { |
| 286 | /* |
| 287 | * Found element corresponding to the tag |
| 288 | * being looked at. |
| 289 | * Reposition over the right element. |
| 290 | */ |
| 291 | edx = n; |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 292 | ctx->step = 1 + 2 * edx; /* Remember! */ |
| 293 | goto microphase2; |
vlm | 060fe2a | 2004-09-10 09:37:12 +0000 | [diff] [blame] | 294 | } else if(elements[n].flags & ATF_OPEN_TYPE) { |
| 295 | /* |
| 296 | * This is the ANY type, which may bear |
| 297 | * any flag whatsoever. |
| 298 | */ |
| 299 | edx = n; |
| 300 | ctx->step = 1 + 2 * edx; /* Remember! */ |
| 301 | goto microphase2; |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 302 | } else if(elements[n].tag == (ber_tlv_tag_t)-1) { |
| 303 | use_bsearch = 1; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 304 | break; |
| 305 | } |
| 306 | } |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 307 | if(use_bsearch) { |
| 308 | /* |
vlm | 141874a | 2004-09-04 06:17:35 +0000 | [diff] [blame] | 309 | * Resort to a binary search over |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 310 | * sorted array of tags. |
| 311 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 312 | asn_TYPE_tag2member_t *t2m; |
| 313 | asn_TYPE_tag2member_t key; |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 314 | key.el_tag = tlv_tag; |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 315 | key.el_no = edx; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 316 | (void *)t2m = bsearch(&key, |
| 317 | specs->tag2el, specs->tag2el_count, |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 318 | sizeof(specs->tag2el[0]), _t2e_cmp); |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 319 | if(t2m) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 320 | asn_TYPE_tag2member_t *best = 0; |
| 321 | asn_TYPE_tag2member_t *t2m_f, *t2m_l; |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 322 | int edx_max = edx + elements[edx].optional; |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 323 | /* |
| 324 | * Rewind to the first element with that tag, |
| 325 | * `cause bsearch() does not guarantee order. |
| 326 | */ |
vlm | 1692da0 | 2004-06-14 13:42:23 +0000 | [diff] [blame] | 327 | t2m_f = t2m + t2m->toff_first; |
| 328 | t2m_l = t2m + t2m->toff_last; |
| 329 | for(t2m = t2m_f; t2m <= t2m_l; t2m++) { |
| 330 | if(t2m->el_no > edx_max) break; |
| 331 | if(t2m->el_no < edx) continue; |
| 332 | best = t2m; |
| 333 | } |
| 334 | if(best) { |
| 335 | edx = best->el_no; |
| 336 | ctx->step = 1 + 2 * edx; |
| 337 | goto microphase2; |
| 338 | } |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 339 | } |
| 340 | n = opt_edx_end; |
| 341 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 342 | if(n == opt_edx_end) { |
| 343 | /* |
| 344 | * If tag is unknown, it may be either |
| 345 | * an unknown (thus, incorrect) tag, |
| 346 | * or an extension (...), |
| 347 | * or an end of the indefinite-length structure. |
| 348 | */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 349 | if(!IN_EXTENSION_GROUP(specs, edx)) { |
vlm | 1cc0f2e | 2004-10-05 06:36:57 +0000 | [diff] [blame] | 350 | ASN_DEBUG("Unexpected tag %s (at %d)", |
| 351 | ber_tlv_tag_string(tlv_tag), edx); |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 352 | ASN_DEBUG("Expected tag %s (%s)%s", |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 353 | ber_tlv_tag_string(elements[edx].tag), |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 354 | elements[edx].name, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 355 | elements[edx].optional |
| 356 | ?" or alternatives":""); |
| 357 | RETURN(RC_FAIL); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 358 | } else { |
| 359 | /* Skip this tag */ |
| 360 | ssize_t skip; |
| 361 | |
vlm | 6130a2f | 2004-09-29 14:19:14 +0000 | [diff] [blame] | 362 | skip = ber_skip_length(opt_codec_ctx, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 363 | BER_TLV_CONSTRUCTED(ptr), |
vlm | 1ff928d | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 364 | (char *)ptr + tag_len, LEFT - tag_len); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 365 | ASN_DEBUG("Skip length %d in %s", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 366 | (int)skip, td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 367 | switch(skip) { |
| 368 | case 0: if(!SIZE_VIOLATION) RETURN(RC_WMORE); |
| 369 | /* Fall through */ |
| 370 | case -1: RETURN(RC_FAIL); |
| 371 | } |
| 372 | |
| 373 | ADVANCE(skip + tag_len); |
| 374 | ctx->step -= 2; |
| 375 | edx--; |
| 376 | continue; /* Try again with the next tag */ |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | /* |
| 381 | * MICROPHASE 2: Invoke the member-specific decoder. |
| 382 | */ |
| 383 | ctx->step |= 1; /* Confirm entering next microphase */ |
| 384 | microphase2: |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 385 | ASN_DEBUG("Inside SEQUENCE %s MF2", td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 386 | |
| 387 | /* |
| 388 | * Compute the position of the member inside a structure, |
| 389 | * and also a type of containment (it may be contained |
| 390 | * as pointer or using inline inclusion). |
| 391 | */ |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 392 | if(elements[edx].flags & ATF_POINTER) { |
| 393 | /* Member is a pointer to another structure */ |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 394 | memb_ptr2 = (void **)((char *)st + elements[edx].memb_offset); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 395 | } else { |
| 396 | /* |
| 397 | * A pointer to a pointer |
| 398 | * holding the start of the structure |
| 399 | */ |
| 400 | memb_ptr = (char *)st + elements[edx].memb_offset; |
| 401 | memb_ptr2 = &memb_ptr; |
| 402 | } |
| 403 | /* |
| 404 | * Invoke the member fetch routine according to member's type |
| 405 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 406 | rval = elements[edx].type->ber_decoder(opt_codec_ctx, |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 407 | elements[edx].type, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 408 | memb_ptr2, ptr, LEFT, |
| 409 | elements[edx].tag_mode); |
vlm | ef16e8c | 2004-09-04 04:44:11 +0000 | [diff] [blame] | 410 | ASN_DEBUG("In %s SEQUENCE decoded %d %s of %d " |
vlm | eca9d62 | 2004-09-24 20:59:27 +0000 | [diff] [blame] | 411 | "in %d bytes rval.code %d, size=%d", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 412 | td->name, edx, elements[edx].type->name, |
vlm | eca9d62 | 2004-09-24 20:59:27 +0000 | [diff] [blame] | 413 | (int)LEFT, (int)rval.consumed, rval.code, (int)size); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 414 | switch(rval.code) { |
| 415 | case RC_OK: |
| 416 | break; |
| 417 | case RC_WMORE: /* More data expected */ |
| 418 | if(!SIZE_VIOLATION) { |
| 419 | ADVANCE(rval.consumed); |
| 420 | RETURN(RC_WMORE); |
| 421 | } |
vlm | eca9d62 | 2004-09-24 20:59:27 +0000 | [diff] [blame] | 422 | ASN_DEBUG("Size violation (c->l=%ld <= s=%ld)", |
| 423 | (long)ctx->left, (long)size); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 424 | /* Fall through */ |
| 425 | case RC_FAIL: /* Fatal error */ |
| 426 | RETURN(RC_FAIL); |
| 427 | } /* switch(rval) */ |
| 428 | |
| 429 | ADVANCE(rval.consumed); |
| 430 | } /* for(all structure members) */ |
| 431 | |
| 432 | phase3: |
| 433 | ctx->phase = 3; |
| 434 | case 3: /* 00 and other tags expected */ |
| 435 | case 4: /* only 00's expected */ |
| 436 | |
| 437 | ASN_DEBUG("SEQUENCE %s Leftover: %ld, size = %ld", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 438 | td->name, (long)ctx->left, (long)size); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 439 | |
| 440 | /* |
| 441 | * Skip everything until the end of the SEQUENCE. |
| 442 | */ |
| 443 | while(ctx->left) { |
| 444 | ssize_t tl, ll; |
| 445 | |
| 446 | tl = ber_fetch_tag(ptr, LEFT, &tlv_tag); |
| 447 | switch(tl) { |
| 448 | case 0: if(!SIZE_VIOLATION) RETURN(RC_WMORE); |
| 449 | /* Fall through */ |
| 450 | case -1: RETURN(RC_FAIL); |
| 451 | } |
| 452 | |
| 453 | /* |
| 454 | * If expected <0><0>... |
| 455 | */ |
| 456 | if(ctx->left < 0 |
| 457 | && ((uint8_t *)ptr)[0] == 0) { |
| 458 | if(LEFT < 2) { |
| 459 | if(SIZE_VIOLATION) |
| 460 | RETURN(RC_FAIL); |
| 461 | else |
| 462 | RETURN(RC_WMORE); |
| 463 | } else if(((uint8_t *)ptr)[1] == 0) { |
| 464 | /* |
| 465 | * Correctly finished with <0><0>. |
| 466 | */ |
| 467 | ADVANCE(2); |
| 468 | ctx->left++; |
| 469 | ctx->phase = 4; |
| 470 | continue; |
| 471 | } |
| 472 | } |
| 473 | |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 474 | if(!IN_EXTENSION_GROUP(specs, td->elements_count) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 475 | || ctx->phase == 4) { |
| 476 | ASN_DEBUG("Unexpected continuation " |
| 477 | "of a non-extensible type " |
| 478 | "%s (SEQUENCE): %s", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 479 | td->name, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 480 | ber_tlv_tag_string(tlv_tag)); |
| 481 | RETURN(RC_FAIL); |
| 482 | } |
| 483 | |
vlm | 6130a2f | 2004-09-29 14:19:14 +0000 | [diff] [blame] | 484 | ll = ber_skip_length(opt_codec_ctx, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 485 | BER_TLV_CONSTRUCTED(ptr), |
vlm | 1ff928d | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 486 | (char *)ptr + tl, LEFT - tl); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 487 | switch(ll) { |
| 488 | case 0: if(!SIZE_VIOLATION) RETURN(RC_WMORE); |
| 489 | /* Fall through */ |
| 490 | case -1: RETURN(RC_FAIL); |
| 491 | } |
| 492 | |
| 493 | ADVANCE(tl + ll); |
| 494 | } |
| 495 | |
| 496 | PHASE_OUT(ctx); |
| 497 | } |
| 498 | |
| 499 | RETURN(RC_OK); |
| 500 | } |
| 501 | |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 502 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 503 | /* |
| 504 | * The DER encoder of the SEQUENCE type. |
| 505 | */ |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 506 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 507 | SEQUENCE_encode_der(asn_TYPE_descriptor_t *td, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 508 | void *ptr, int tag_mode, ber_tlv_tag_t tag, |
| 509 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 510 | size_t computed_size = 0; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 511 | asn_enc_rval_t erval; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 512 | ssize_t ret; |
| 513 | int edx; |
| 514 | |
| 515 | ASN_DEBUG("%s %s as SEQUENCE", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 516 | cb?"Encoding":"Estimating", td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 517 | |
| 518 | /* |
| 519 | * Gather the length of the underlying members sequence. |
| 520 | */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 521 | for(edx = 0; edx < td->elements_count; edx++) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 522 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 523 | void *memb_ptr; |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 524 | if(elm->flags & ATF_POINTER) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 525 | memb_ptr = *(void **)((char *)ptr + elm->memb_offset); |
| 526 | if(!memb_ptr) continue; |
| 527 | } else { |
| 528 | memb_ptr = (void *)((char *)ptr + elm->memb_offset); |
| 529 | } |
| 530 | erval = elm->type->der_encoder(elm->type, memb_ptr, |
| 531 | elm->tag_mode, elm->tag, |
| 532 | 0, 0); |
| 533 | if(erval.encoded == -1) |
| 534 | return erval; |
| 535 | computed_size += erval.encoded; |
| 536 | ASN_DEBUG("Member %d %s estimated %ld bytes", |
| 537 | edx, elm->name, (long)erval.encoded); |
| 538 | } |
| 539 | |
| 540 | /* |
| 541 | * Encode the TLV for the sequence itself. |
| 542 | */ |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 543 | ret = der_write_tags(td, computed_size, tag_mode, 1, tag, cb, app_key); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 544 | ASN_DEBUG("Wrote tags: %ld (+%ld)", (long)ret, (long)computed_size); |
| 545 | if(ret == -1) { |
| 546 | erval.encoded = -1; |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 547 | erval.failed_type = td; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 548 | erval.structure_ptr = ptr; |
| 549 | return erval; |
| 550 | } |
| 551 | erval.encoded = computed_size + ret; |
| 552 | |
| 553 | if(!cb) return erval; |
| 554 | |
| 555 | /* |
| 556 | * Encode all members. |
| 557 | */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 558 | for(edx = 0; edx < td->elements_count; edx++) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 559 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 560 | asn_enc_rval_t tmperval; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 561 | void *memb_ptr; |
| 562 | |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 563 | if(elm->flags & ATF_POINTER) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 564 | memb_ptr = *(void **)((char *)ptr + elm->memb_offset); |
| 565 | if(!memb_ptr) continue; |
| 566 | } else { |
| 567 | memb_ptr = (void *)((char *)ptr + elm->memb_offset); |
| 568 | } |
| 569 | tmperval = elm->type->der_encoder(elm->type, memb_ptr, |
| 570 | elm->tag_mode, elm->tag, |
| 571 | cb, app_key); |
| 572 | if(tmperval.encoded == -1) |
| 573 | return tmperval; |
| 574 | computed_size -= tmperval.encoded; |
| 575 | ASN_DEBUG("Member %d %s of SEQUENCE %s encoded in %d bytes", |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 576 | edx, elm->name, td->name, tmperval.encoded); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | if(computed_size != 0) { |
| 580 | /* |
| 581 | * Encoded size is not equal to the computed size. |
| 582 | */ |
| 583 | erval.encoded = -1; |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 584 | erval.failed_type = td; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 585 | erval.structure_ptr = ptr; |
| 586 | } |
| 587 | |
| 588 | return erval; |
| 589 | } |
| 590 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 591 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 592 | SEQUENCE_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 593 | int ilevel, enum xer_encoder_flags_e flags, |
| 594 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 595 | asn_enc_rval_t er; |
| 596 | int xcan = (flags & XER_F_CANONICAL); |
| 597 | int edx; |
| 598 | |
| 599 | if(!sptr) |
| 600 | _ASN_ENCODE_FAILED; |
| 601 | |
| 602 | er.encoded = 0; |
| 603 | |
| 604 | for(edx = 0; edx < td->elements_count; edx++) { |
| 605 | asn_enc_rval_t tmper; |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 606 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 607 | void *memb_ptr; |
| 608 | const char *mname = elm->name; |
| 609 | unsigned int mlen = strlen(mname); |
| 610 | |
| 611 | if(elm->flags & ATF_POINTER) { |
| 612 | memb_ptr = *(void **)((char *)sptr + elm->memb_offset); |
| 613 | if(!memb_ptr) continue; /* OPTIONAL element? */ |
| 614 | } else { |
| 615 | memb_ptr = (void *)((char *)sptr + elm->memb_offset); |
| 616 | } |
| 617 | |
| 618 | if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel); |
| 619 | _ASN_CALLBACK3("<", 1, mname, mlen, ">", 1); |
| 620 | |
| 621 | /* Print the member itself */ |
| 622 | tmper = elm->type->xer_encoder(elm->type, memb_ptr, |
| 623 | ilevel + 1, flags, cb, app_key); |
| 624 | if(tmper.encoded == -1) return tmper; |
| 625 | |
| 626 | _ASN_CALLBACK3("</", 2, mname, mlen, ">", 1); |
| 627 | er.encoded += 5 + (2 * mlen) + tmper.encoded; |
| 628 | } |
| 629 | |
| 630 | if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1); |
| 631 | |
| 632 | return er; |
vlm | 84d551b | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 633 | cb_failed: |
| 634 | _ASN_ENCODE_FAILED; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 635 | } |
| 636 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 637 | int |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 638 | SEQUENCE_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 639 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 640 | int edx; |
| 641 | int ret; |
| 642 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 643 | if(!sptr) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 644 | |
| 645 | /* Dump preamble */ |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 646 | if(cb(td->name, strlen(td->name), app_key) < 0 |
| 647 | || cb(" ::= {", 6, app_key) < 0) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 648 | return -1; |
| 649 | |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 650 | for(edx = 0; edx < td->elements_count; edx++) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 651 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 652 | const void *memb_ptr; |
| 653 | |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 654 | if(elm->flags & ATF_POINTER) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 655 | memb_ptr = *(const void * const *)((const char *)sptr + elm->memb_offset); |
| 656 | if(!memb_ptr) continue; |
| 657 | } else { |
| 658 | memb_ptr = (const void *)((const char *)sptr + elm->memb_offset); |
| 659 | } |
| 660 | |
| 661 | /* Indentation */ |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 662 | _i_INDENT(1); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 663 | |
| 664 | /* Print the member's name and stuff */ |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 665 | if(cb(elm->name, strlen(elm->name), app_key) < 0 |
| 666 | || cb(": ", 2, app_key) < 0) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 667 | return -1; |
| 668 | |
| 669 | /* Print the member itself */ |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 670 | ret = elm->type->print_struct(elm->type, memb_ptr, ilevel + 1, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 671 | cb, app_key); |
| 672 | if(ret) return ret; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 673 | } |
| 674 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 675 | ilevel--; |
| 676 | _i_INDENT(1); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 677 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 678 | return (cb("}", 1, app_key) < 0) ? -1 : 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | void |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 682 | SEQUENCE_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 683 | int edx; |
| 684 | |
| 685 | if(!td || !sptr) |
| 686 | return; |
| 687 | |
| 688 | ASN_DEBUG("Freeing %s as SEQUENCE", td->name); |
| 689 | |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 690 | for(edx = 0; edx < td->elements_count; edx++) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 691 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 692 | void *memb_ptr; |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 693 | if(elm->flags & ATF_POINTER) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 694 | memb_ptr = *(void **)((char *)sptr + elm->memb_offset); |
| 695 | if(memb_ptr) |
| 696 | elm->type->free_struct(elm->type, memb_ptr, 0); |
| 697 | } else { |
| 698 | memb_ptr = (void *)((char *)sptr + elm->memb_offset); |
| 699 | elm->type->free_struct(elm->type, memb_ptr, 1); |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | if(!contents_only) { |
| 704 | FREEMEM(sptr); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | int |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 709 | SEQUENCE_constraint(asn_TYPE_descriptor_t *td, const void *sptr, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 710 | asn_app_consume_bytes_f *app_errlog, void *app_key) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 711 | int edx; |
| 712 | |
| 713 | if(!sptr) { |
vlm | e3f0f28 | 2004-08-11 09:44:13 +0000 | [diff] [blame] | 714 | _ASN_ERRLOG(app_errlog, app_key, |
vlm | 758530a | 2004-08-22 13:47:59 +0000 | [diff] [blame] | 715 | "%s: value not given (%s:%d)", |
| 716 | td->name, __FILE__, __LINE__); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 717 | return -1; |
| 718 | } |
| 719 | |
| 720 | /* |
| 721 | * Iterate over structure members and check their validity. |
| 722 | */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 723 | for(edx = 0; edx < td->elements_count; edx++) { |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 724 | asn_TYPE_member_t *elm = &td->elements[edx]; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 725 | const void *memb_ptr; |
| 726 | |
vlm | ddd5a7d | 2004-09-10 09:18:20 +0000 | [diff] [blame] | 727 | if(elm->flags & ATF_POINTER) { |
vlm | 3147308 | 2004-06-06 07:20:02 +0000 | [diff] [blame] | 728 | memb_ptr = *(const void * const *)((const char *)sptr + elm->memb_offset); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 729 | if(!memb_ptr) continue; |
| 730 | } else { |
| 731 | memb_ptr = (const void *)((const char *)sptr + elm->memb_offset); |
| 732 | } |
| 733 | |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 734 | if(elm->memb_constraints) { |
| 735 | int ret = elm->memb_constraints(elm->type, memb_ptr, |
| 736 | app_errlog, app_key); |
| 737 | if(ret) return ret; |
| 738 | } else { |
| 739 | int ret = elm->type->check_constraints(elm->type, |
| 740 | memb_ptr, app_errlog, app_key); |
| 741 | if(ret) return ret; |
| 742 | /* |
| 743 | * Cannot inherit it earlier: |
| 744 | * need to make sure we get the updated version. |
| 745 | */ |
| 746 | elm->memb_constraints = elm->type->check_constraints; |
| 747 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | return 0; |
| 751 | } |