Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 2 | * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved. |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +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 | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | #include <OCTET_STRING.h> |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 7 | #include <BIT_STRING.h> /* for .bits_unused member */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 8 | #include <assert.h> |
| 9 | #include <errno.h> |
| 10 | |
| 11 | /* |
| 12 | * OCTET STRING basic type description. |
| 13 | */ |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 14 | static ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 15 | (ASN_TAG_CLASS_UNIVERSAL | (4 << 2)) |
| 16 | }; |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 17 | static asn_OCTET_STRING_specifics_t asn_DEF_OCTET_STRING_specs = { |
| 18 | sizeof(OCTET_STRING_t), |
| 19 | offsetof(OCTET_STRING_t, _asn_ctx), |
| 20 | 0 |
| 21 | }; |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 22 | asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 23 | "OCTET STRING", |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 24 | OCTET_STRING_free, |
| 25 | OCTET_STRING_print, /* non-ascii stuff, generally */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 26 | asn_generic_no_constraint, |
| 27 | OCTET_STRING_decode_ber, |
| 28 | OCTET_STRING_encode_der, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 29 | 0, /* Not implemented yet */ |
| 30 | OCTET_STRING_encode_xer, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 31 | 0, /* Use generic outmost tag fetcher */ |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 32 | asn_DEF_OCTET_STRING_tags, |
| 33 | sizeof(asn_DEF_OCTET_STRING_tags) |
| 34 | / sizeof(asn_DEF_OCTET_STRING_tags[0]), |
| 35 | asn_DEF_OCTET_STRING_tags, /* Same as above */ |
| 36 | sizeof(asn_DEF_OCTET_STRING_tags) |
| 37 | / sizeof(asn_DEF_OCTET_STRING_tags[0]), |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 38 | 0, 0, /* No members */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 39 | &asn_DEF_OCTET_STRING_specs |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 40 | }; |
| 41 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 42 | #undef _CH_PHASE |
| 43 | #undef NEXT_PHASE |
| 44 | #undef PREV_PHASE |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 45 | #define _CH_PHASE(ctx, inc) do { \ |
| 46 | if(ctx->phase == 0) \ |
| 47 | ctx->step = 0; \ |
| 48 | ctx->phase += inc; \ |
| 49 | } while(0) |
| 50 | #define NEXT_PHASE(ctx) _CH_PHASE(ctx, +1) |
| 51 | #define PREV_PHASE(ctx) _CH_PHASE(ctx, -1) |
| 52 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 53 | #undef ADVANCE |
Lev Walkin | 4ce78ca | 2004-08-25 01:34:11 +0000 | [diff] [blame] | 54 | #define ADVANCE(num_bytes) do { \ |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 55 | size_t num = (num_bytes); \ |
Lev Walkin | 4ce78ca | 2004-08-25 01:34:11 +0000 | [diff] [blame] | 56 | buf_ptr = ((char *)buf_ptr) + num; \ |
| 57 | size -= num; \ |
| 58 | consumed_myself += num; \ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 59 | } while(0) |
| 60 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 61 | #undef RETURN |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 62 | #define RETURN(_code) do { \ |
| 63 | rval.code = _code; \ |
| 64 | rval.consumed = consumed_myself;\ |
| 65 | return rval; \ |
| 66 | } while(0) |
| 67 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 68 | #undef APPEND |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 69 | #define APPEND(bufptr, bufsize) do { \ |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 70 | size_t _bs = (bufsize); \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 71 | size_t _ns = ctx->step; /* Allocated */ \ |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 72 | if(_ns <= (size_t)(st->size + _bs)) { \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 73 | void *ptr; \ |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 74 | /* Be nice and round to the memory allocator */ \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 75 | do { _ns = _ns ? _ns<<2 : 16; } \ |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 76 | while(_ns <= (size_t)(st->size + _bs)); \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 77 | ptr = REALLOC(st->buf, _ns); \ |
| 78 | if(ptr) { \ |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 79 | st->buf = (uint8_t *)ptr; \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 80 | ctx->step = _ns; \ |
| 81 | } else { \ |
| 82 | RETURN(RC_FAIL); \ |
| 83 | } \ |
| 84 | } \ |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 85 | memcpy(st->buf + st->size, bufptr, _bs); \ |
| 86 | st->size += _bs; \ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 87 | if(st->size < 0) \ |
| 88 | /* Why even care?.. JIC */ \ |
| 89 | RETURN(RC_FAIL); \ |
| 90 | /* Convenient nul-termination */ \ |
| 91 | st->buf[st->size] = '\0'; \ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 92 | } while(0) |
| 93 | |
| 94 | /* |
Lev Walkin | 07f388c | 2004-10-11 11:43:08 +0000 | [diff] [blame] | 95 | * Internal variant of the OCTET STRING. |
| 96 | */ |
| 97 | typedef enum OS_type { |
| 98 | _TT_GENERIC = 0, /* Just a random OCTET STRING */ |
| 99 | _TT_BIT_STRING = 1, /* BIT STRING type, a special case */ |
| 100 | _TT_ANY = 2, /* ANY type, a special case too */ |
| 101 | } OS_type_e; |
| 102 | |
| 103 | /* |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 104 | * The main reason why ASN.1 is still alive is that too much time and effort |
| 105 | * is necessary for learning it more or less adequately, thus creating a gut |
| 106 | * necessity to demonstrate that aquired skill everywhere afterwards. |
| 107 | * No, I am not going to explain what the following stuff is. |
| 108 | */ |
| 109 | struct _stack_el { |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 110 | ber_tlv_len_t left; /* What's left to read (or -1) */ |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 111 | ber_tlv_len_t got; /* What was actually processed */ |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 112 | int cont_level; /* Depth of subcontainment */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 113 | int want_nulls; /* Want null "end of content" octets? */ |
| 114 | int bits_chopped; /* Flag in BIT STRING mode */ |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 115 | ber_tlv_tag_t tag; /* For debugging purposes */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 116 | struct _stack_el *prev; |
| 117 | struct _stack_el *next; |
| 118 | }; |
| 119 | struct _stack { |
| 120 | struct _stack_el *tail; |
| 121 | struct _stack_el *cur_ptr; |
| 122 | }; |
| 123 | |
| 124 | static struct _stack_el * |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 125 | OS__add_stack_el(struct _stack *st) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 126 | struct _stack_el *nel; |
| 127 | |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 128 | /* |
| 129 | * Reuse the old stack frame or allocate a new one. |
| 130 | */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 131 | if(st->cur_ptr && st->cur_ptr->next) { |
| 132 | nel = st->cur_ptr->next; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 133 | nel->bits_chopped = 0; |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 134 | nel->got = 0; |
| 135 | /* Retain the nel->cont_level, it's correct. */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 136 | } else { |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 137 | (void *)nel = CALLOC(1, sizeof(struct _stack_el)); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 138 | if(nel == NULL) |
| 139 | return NULL; |
| 140 | |
| 141 | if(st->tail) { |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 142 | /* Increase a subcontainment depth */ |
| 143 | nel->cont_level = st->tail->cont_level + 1; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 144 | st->tail->next = nel; |
| 145 | } |
| 146 | nel->prev = st->tail; |
| 147 | st->tail = nel; |
| 148 | } |
| 149 | |
| 150 | st->cur_ptr = nel; |
| 151 | |
| 152 | return nel; |
| 153 | } |
| 154 | |
| 155 | static struct _stack * |
| 156 | _new_stack() { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 157 | return (struct _stack *)CALLOC(1, sizeof(struct _stack)); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | /* |
| 161 | * Decode OCTET STRING type. |
| 162 | */ |
| 163 | ber_dec_rval_t |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 164 | OCTET_STRING_decode_ber(asn_codec_ctx_t *opt_codec_ctx, |
| 165 | asn_TYPE_descriptor_t *td, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 166 | void **os_structure, void *buf_ptr, size_t size, int tag_mode) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 167 | asn_OCTET_STRING_specifics_t *specs = td->specifics |
| 168 | ? td->specifics : &asn_DEF_OCTET_STRING_specs; |
| 169 | BIT_STRING_t *st = (BIT_STRING_t *)*os_structure; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 170 | ber_dec_rval_t rval; |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 171 | asn_struct_ctx_t *ctx; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 172 | ssize_t consumed_myself = 0; |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 173 | struct _stack *stck; /* Expectations stack structure */ |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 174 | struct _stack_el *sel = 0; /* Stack element */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 175 | int tlv_constr; |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 176 | OS_type_e type_variant = (OS_type_e)specs->subvariant; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 177 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 178 | ASN_DEBUG("Decoding %s as %s (frame %ld)", |
| 179 | td->name, |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 180 | (type_variant == _TT_GENERIC) ? |
| 181 | "OCTET STRING" : "OS-SpecialCase", |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 182 | (long)size); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 183 | |
| 184 | /* |
| 185 | * Create the string if does not exist. |
| 186 | */ |
| 187 | if(st == NULL) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 188 | (void *)st = *os_structure = CALLOC(1, specs->struct_size); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 189 | if(st == NULL) |
| 190 | RETURN(RC_FAIL); |
| 191 | } |
| 192 | |
| 193 | /* Restore parsing context */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 194 | ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 195 | |
| 196 | switch(ctx->phase) { |
| 197 | case 0: |
| 198 | /* |
| 199 | * Check tags. |
| 200 | */ |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 201 | rval = ber_check_tags(opt_codec_ctx, td, ctx, |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 202 | buf_ptr, size, tag_mode, -1, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 203 | &ctx->left, &tlv_constr); |
Lev Walkin | 443d251 | 2004-10-05 06:35:31 +0000 | [diff] [blame] | 204 | if(rval.code != RC_OK) |
| 205 | return rval; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 206 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 207 | if(tlv_constr) { |
| 208 | /* |
| 209 | * Complex operation, requires stack of expectations. |
| 210 | */ |
| 211 | ctx->ptr = _new_stack(); |
| 212 | if(ctx->ptr) { |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 213 | (void *)stck = ctx->ptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 214 | } else { |
| 215 | RETURN(RC_FAIL); |
| 216 | } |
| 217 | } else { |
| 218 | /* |
| 219 | * Jump into stackless primitive decoding. |
| 220 | */ |
| 221 | _CH_PHASE(ctx, 3); |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 222 | if(type_variant == _TT_ANY && tag_mode != 1) |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 223 | APPEND(buf_ptr, rval.consumed); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 224 | ADVANCE(rval.consumed); |
| 225 | goto phase3; |
| 226 | } |
| 227 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 228 | NEXT_PHASE(ctx); |
| 229 | /* Fall through */ |
| 230 | case 1: |
| 231 | phase1: |
| 232 | /* |
| 233 | * Fill the stack with expectations. |
| 234 | */ |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 235 | (void *)stck = ctx->ptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 236 | sel = stck->cur_ptr; |
| 237 | do { |
| 238 | ber_tlv_tag_t tlv_tag; |
| 239 | ber_tlv_len_t tlv_len; |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 240 | ber_tlv_tag_t expected_tag; |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 241 | ssize_t tl, ll, tlvl; |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 242 | /* This one works even if (sel->left == -1) */ |
| 243 | ssize_t Left = ((!sel||(size_t)sel->left >= size) |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 244 | ?(ssize_t)size:sel->left); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 245 | |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 246 | |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 247 | ASN_DEBUG("%p, s->l=%d, s->wn=%d, s->g=%d\n", sel, |
| 248 | sel?sel->left:0, |
| 249 | sel?sel->want_nulls:0, |
| 250 | sel?sel->got:0 |
| 251 | ); |
| 252 | if(sel && sel->left <= 0 && sel->want_nulls == 0) { |
| 253 | if(sel->prev) { |
| 254 | struct _stack_el *prev = sel->prev; |
| 255 | if(prev->left != -1) { |
| 256 | if(prev->left < sel->got) |
| 257 | RETURN(RC_FAIL); |
| 258 | prev->left -= sel->got; |
| 259 | } |
| 260 | prev->got += sel->got; |
| 261 | sel = stck->cur_ptr = prev; |
| 262 | if(!sel) break; |
| 263 | tlv_constr = 1; |
| 264 | continue; |
| 265 | } else { |
| 266 | sel = stck->cur_ptr = 0; |
| 267 | break; /* Nothing to wait */ |
| 268 | } |
| 269 | } |
| 270 | |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 271 | tl = ber_fetch_tag(buf_ptr, Left, &tlv_tag); |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 272 | ASN_DEBUG("fetch tag(size=%d,L=%d), %sstack, left=%d, wn=%d, tl=%d", |
| 273 | (int)size, Left, sel?"":"!", |
| 274 | sel?sel->left:0, sel?sel->want_nulls:0, tl); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 275 | switch(tl) { |
| 276 | case -1: RETURN(RC_FAIL); |
| 277 | case 0: RETURN(RC_WMORE); |
| 278 | } |
| 279 | |
| 280 | tlv_constr = BER_TLV_CONSTRUCTED(buf_ptr); |
| 281 | |
| 282 | ll = ber_fetch_length(tlv_constr, |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 283 | (char *)buf_ptr + tl, Left - tl, &tlv_len); |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 284 | ASN_DEBUG("Got tag=%s, tc=%d, left=%ld, tl=%d, len=%d, ll=%d", |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 285 | ber_tlv_tag_string(tlv_tag), tlv_constr, |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 286 | (long)Left, tl, tlv_len, ll); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 287 | switch(ll) { |
| 288 | case -1: RETURN(RC_FAIL); |
| 289 | case 0: RETURN(RC_WMORE); |
| 290 | } |
| 291 | |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 292 | if(sel && sel->want_nulls |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 293 | && ((uint8_t *)buf_ptr)[0] == 0 |
| 294 | && ((uint8_t *)buf_ptr)[1] == 0) |
| 295 | { |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 296 | |
| 297 | ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls); |
| 298 | |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 299 | if(type_variant == _TT_ANY |
Lev Walkin | 07f388c | 2004-10-11 11:43:08 +0000 | [diff] [blame] | 300 | && (tag_mode != 1 || sel->cont_level)) |
| 301 | APPEND("\0\0", 2); |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 302 | |
| 303 | ADVANCE(2); |
| 304 | sel->got += 2; |
| 305 | if(sel->left != -1) { |
| 306 | sel->left -= 2; /* assert(sel->left >= 2) */ |
| 307 | } |
| 308 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 309 | sel->want_nulls--; |
| 310 | if(sel->want_nulls == 0) { |
| 311 | /* Move to the next expectation */ |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 312 | sel->left = 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 313 | tlv_constr = 1; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 314 | } |
Lev Walkin | 8d12787 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 315 | |
| 316 | continue; |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | /* |
| 320 | * Set up expected tags, |
| 321 | * depending on ASN.1 type being decoded. |
| 322 | */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 323 | switch(type_variant) { |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 324 | case _TT_BIT_STRING: |
| 325 | /* X.690: 8.6.4.1, NOTE 2 */ |
| 326 | /* Fall through */ |
| 327 | case _TT_GENERIC: |
| 328 | default: |
| 329 | if(sel) { |
| 330 | int level = sel->cont_level; |
| 331 | if(level < td->all_tags_count) { |
| 332 | expected_tag = td->all_tags[level]; |
| 333 | break; |
| 334 | } else if(td->all_tags_count) { |
| 335 | expected_tag = td->all_tags |
| 336 | [td->all_tags_count - 1]; |
| 337 | break; |
| 338 | } |
| 339 | /* else, Fall through */ |
| 340 | } |
| 341 | /* Fall through */ |
| 342 | case _TT_ANY: |
| 343 | expected_tag = tlv_tag; |
| 344 | break; |
| 345 | } |
| 346 | |
| 347 | |
| 348 | if(tlv_tag != expected_tag) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 349 | char buf[2][32]; |
| 350 | ber_tlv_tag_snprint(tlv_tag, |
| 351 | buf[0], sizeof(buf[0])); |
| 352 | ber_tlv_tag_snprint(td->tags[td->tags_count-1], |
| 353 | buf[1], sizeof(buf[1])); |
| 354 | ASN_DEBUG("Tag does not match expectation: %s != %s", |
| 355 | buf[0], buf[1]); |
| 356 | RETURN(RC_FAIL); |
| 357 | } |
| 358 | |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 359 | tlvl = tl + ll; /* Combined length of T and L encoding */ |
| 360 | if((tlv_len + tlvl) < 0) { |
| 361 | /* tlv_len value is too big */ |
| 362 | ASN_DEBUG("TLV encoding + length (%ld) is too big", |
| 363 | (long)tlv_len); |
| 364 | RETURN(RC_FAIL); |
| 365 | } |
| 366 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 367 | /* |
| 368 | * Append a new expectation. |
| 369 | */ |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 370 | sel = OS__add_stack_el(stck); |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 371 | if(!sel) RETURN(RC_FAIL); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 372 | |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 373 | sel->tag = tlv_tag; |
| 374 | |
| 375 | sel->want_nulls = (tlv_len==-1); |
| 376 | if(sel->prev && sel->prev->left != -1) { |
| 377 | /* Check that the parent frame is big enough */ |
| 378 | if(sel->prev->left < tlvl + (tlv_len==-1?0:tlv_len)) |
| 379 | RETURN(RC_FAIL); |
| 380 | if(tlv_len == -1) |
| 381 | sel->left = sel->prev->left - tlvl; |
| 382 | else |
| 383 | sel->left = tlv_len; |
| 384 | } else { |
| 385 | sel->left = tlv_len; |
| 386 | } |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 387 | if(type_variant == _TT_ANY |
Lev Walkin | 07f388c | 2004-10-11 11:43:08 +0000 | [diff] [blame] | 388 | && (tag_mode != 1 || sel->cont_level)) |
| 389 | APPEND(buf_ptr, tlvl); |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 390 | sel->got += tlvl; |
| 391 | ADVANCE(tlvl); |
| 392 | |
| 393 | ASN_DEBUG("+EXPECT2 got=%d left=%d, wn=%d, clvl=%d", |
| 394 | sel->got, sel->left, sel->want_nulls, sel->cont_level); |
| 395 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 396 | } while(tlv_constr); |
| 397 | if(sel == NULL) { |
| 398 | /* Finished operation, "phase out" */ |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 399 | ASN_DEBUG("Phase out"); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 400 | _CH_PHASE(ctx, +3); |
| 401 | break; |
| 402 | } |
| 403 | |
| 404 | NEXT_PHASE(ctx); |
| 405 | /* Fall through */ |
| 406 | case 2: |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 407 | (void *)stck = ctx->ptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 408 | sel = stck->cur_ptr; |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 409 | ASN_DEBUG("Phase 2: Need %ld bytes, size=%ld, alrg=%ld, wn=%d", |
| 410 | (long)sel->left, (long)size, (long)sel->got, |
| 411 | sel->want_nulls); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 412 | { |
| 413 | ber_tlv_len_t len; |
| 414 | |
| 415 | assert(sel->left >= 0); |
| 416 | |
Lev Walkin | ec1ffd4 | 2004-08-18 04:53:32 +0000 | [diff] [blame] | 417 | len = ((ber_tlv_len_t)size < sel->left) |
| 418 | ? (ber_tlv_len_t)size : sel->left; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 419 | if(len > 0) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 420 | if(type_variant == _TT_BIT_STRING |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 421 | && sel->bits_chopped == 0) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 422 | /* Put the unused-bits-octet away */ |
| 423 | st->bits_unused = *(uint8_t *)buf_ptr; |
Lev Walkin | 4d9528c | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 424 | APPEND(((char *)buf_ptr+1), (len - 1)); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 425 | sel->bits_chopped = 1; |
| 426 | } else { |
| 427 | APPEND(buf_ptr, len); |
| 428 | } |
| 429 | ADVANCE(len); |
| 430 | sel->left -= len; |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 431 | sel->got += len; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 432 | } |
| 433 | |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 434 | if(sel->left) { |
| 435 | ASN_DEBUG("OS left %ld, size = %ld, wn=%d\n", |
| 436 | (long)sel->left, (long)size, sel->want_nulls); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 437 | RETURN(RC_WMORE); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 438 | } |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 439 | |
| 440 | PREV_PHASE(ctx); |
| 441 | goto phase1; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 442 | } |
| 443 | break; |
| 444 | case 3: |
| 445 | phase3: |
| 446 | /* |
| 447 | * Primitive form, no stack required. |
| 448 | */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 449 | assert(ctx->left >= 0); |
| 450 | |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 451 | if(size < (size_t)ctx->left) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 452 | if(!size) RETURN(RC_WMORE); |
| 453 | if(type_variant == _TT_BIT_STRING && ctx->step == 0) { |
| 454 | st->bits_unused = *(uint8_t *)buf_ptr; |
| 455 | ctx->left--; |
| 456 | ADVANCE(1); |
| 457 | } |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 458 | APPEND(buf_ptr, size); |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 459 | assert(ctx->step); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 460 | ctx->left -= size; |
| 461 | ADVANCE(size); |
| 462 | RETURN(RC_WMORE); |
| 463 | } else { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 464 | if(type_variant == _TT_BIT_STRING |
| 465 | && ctx->step == 0 && ctx->left) { |
| 466 | st->bits_unused = *(uint8_t *)buf_ptr; |
| 467 | ctx->left--; |
| 468 | ADVANCE(1); |
| 469 | } |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 470 | APPEND(buf_ptr, ctx->left); |
| 471 | ADVANCE(ctx->left); |
| 472 | ctx->left = 0; |
| 473 | |
| 474 | NEXT_PHASE(ctx); |
| 475 | } |
| 476 | break; |
| 477 | } |
| 478 | |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 479 | if(sel) { |
| 480 | ASN_DEBUG("3sel p=%p, wn=%d, l=%ld, g=%ld, size=%ld", |
| 481 | sel->prev, sel->want_nulls, |
| 482 | (long)sel->left, (long)sel->got, (long)size); |
| 483 | if(sel->prev || sel->want_nulls > 1 || sel->left > 0) { |
| 484 | RETURN(RC_WMORE); |
| 485 | } |
| 486 | } |
| 487 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 488 | /* |
| 489 | * BIT STRING-specific processing. |
| 490 | */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 491 | if(type_variant == _TT_BIT_STRING && st->size) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 492 | /* Finalize BIT STRING: zero out unused bits. */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 493 | st->buf[st->size-1] &= 0xff << st->bits_unused; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 494 | } |
| 495 | |
| 496 | ASN_DEBUG("Took %d bytes to encode %s: [%s]:%d", |
Lev Walkin | 3990ba6 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 497 | consumed_myself, td->name, |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 498 | (type_variant == _TT_GENERIC) ? (char *)st->buf : "<data>", |
| 499 | st->size); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 500 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 501 | |
Lev Walkin | 5c91599 | 2004-09-27 20:54:06 +0000 | [diff] [blame] | 502 | RETURN(RC_OK); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | /* |
| 506 | * Encode OCTET STRING type using DER. |
| 507 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 508 | asn_enc_rval_t |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 509 | OCTET_STRING_encode_der(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 510 | int tag_mode, ber_tlv_tag_t tag, |
| 511 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 512 | asn_enc_rval_t er; |
| 513 | asn_OCTET_STRING_specifics_t *specs = td->specifics |
| 514 | ? td->specifics : &asn_DEF_OCTET_STRING_specs; |
| 515 | BIT_STRING_t *st = (BIT_STRING_t *)sptr; |
| 516 | OS_type_e type_variant = (OS_type_e)specs->subvariant; |
| 517 | int fix_last_byte = 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 518 | |
| 519 | ASN_DEBUG("%s %s as OCTET STRING", |
Lev Walkin | 1f670c1 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 520 | cb?"Estimating":"Encoding", td->name); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 521 | |
| 522 | /* |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 523 | * Write tags. |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 524 | */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 525 | if(type_variant != _TT_ANY || tag_mode == 1) { |
| 526 | er.encoded = der_write_tags(td, |
| 527 | (type_variant == _TT_BIT_STRING) + st->size, |
| 528 | tag_mode, type_variant == _TT_ANY, tag, cb, app_key); |
| 529 | if(er.encoded == -1) { |
| 530 | er.failed_type = td; |
| 531 | er.structure_ptr = sptr; |
| 532 | return er; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 533 | } |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 534 | } else { |
| 535 | /* Disallow: [<tag>] IMPLICIT ANY */ |
| 536 | assert(type_variant != _TT_ANY || tag_mode != -1); |
| 537 | er.encoded = 0; |
| 538 | } |
| 539 | |
| 540 | if(!cb) { |
| 541 | er.encoded += (type_variant == _TT_BIT_STRING) + st->size; |
| 542 | return er; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 543 | } |
| 544 | |
Lev Walkin | 07f388c | 2004-10-11 11:43:08 +0000 | [diff] [blame] | 545 | /* |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 546 | * Prepare to deal with the last octet of BIT STRING. |
Lev Walkin | 07f388c | 2004-10-11 11:43:08 +0000 | [diff] [blame] | 547 | */ |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 548 | if(type_variant == _TT_BIT_STRING) { |
| 549 | uint8_t b = st->bits_unused & 0x07; |
| 550 | if(b && st->size) fix_last_byte = 1; |
| 551 | _ASN_CALLBACK(&b, 1); |
| 552 | er.encoded++; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 553 | } |
| 554 | |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 555 | /* Invoke callback for the main part of the buffer */ |
| 556 | _ASN_CALLBACK(st->buf, st->size - fix_last_byte); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 557 | |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 558 | /* The last octet should be stripped off the unused bits */ |
| 559 | if(fix_last_byte) { |
| 560 | uint8_t b = st->buf[st->size-1] & (0xff << st->bits_unused); |
| 561 | _ASN_CALLBACK(&b, 1); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 562 | } |
| 563 | |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 564 | er.encoded += st->size; |
| 565 | return er; |
| 566 | cb_failed: |
| 567 | _ASN_ENCODE_FAILED; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 568 | } |
| 569 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 570 | asn_enc_rval_t |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 571 | OCTET_STRING_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 572 | int ilevel, enum xer_encoder_flags_e flags, |
| 573 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 574 | static const char *h2c = "0123456789ABCDEF"; |
| 575 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
| 576 | asn_enc_rval_t er; |
| 577 | char scratch[16 * 3 + 4]; |
| 578 | char *p = scratch; |
| 579 | uint8_t *buf; |
| 580 | uint8_t *end; |
| 581 | size_t i; |
| 582 | |
Lev Walkin | 942fd08 | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 583 | if(!st || !st->buf) |
| 584 | _ASN_ENCODE_FAILED; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 585 | |
| 586 | er.encoded = 0; |
| 587 | |
| 588 | /* |
| 589 | * Dump the contents of the buffer in hexadecimal. |
| 590 | */ |
| 591 | buf = st->buf; |
| 592 | end = buf + st->size; |
| 593 | if(flags & XER_F_CANONICAL) { |
| 594 | char *scend = scratch + (sizeof(scratch) - 2); |
| 595 | for(; buf < end; buf++) { |
| 596 | if(p >= scend) { |
| 597 | _ASN_CALLBACK(scratch, p - scratch); |
| 598 | er.encoded += p - scratch; |
| 599 | p = scratch; |
| 600 | } |
| 601 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 602 | *p++ = h2c[*buf & 0x0F]; |
| 603 | } |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 604 | |
| 605 | _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */ |
| 606 | er.encoded += p - scratch; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 607 | } else { |
| 608 | for(i = 0; buf < end; buf++, i++) { |
| 609 | if(!(i % 16) && (i || st->size > 16)) { |
| 610 | _ASN_CALLBACK(scratch, p-scratch); |
| 611 | er.encoded += (p-scratch); |
| 612 | p = scratch; |
| 613 | _i_ASN_TEXT_INDENT(1, ilevel); |
| 614 | } |
| 615 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 616 | *p++ = h2c[*buf & 0x0F]; |
| 617 | *p++ = 0x20; |
| 618 | } |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 619 | if(p - scratch) { |
| 620 | p--; /* Remove the tail space */ |
| 621 | _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */ |
| 622 | er.encoded += p - scratch; |
| 623 | if(st->size > 16) |
| 624 | _i_ASN_TEXT_INDENT(1, ilevel-1); |
| 625 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 626 | } |
| 627 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 628 | return er; |
Lev Walkin | 942fd08 | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 629 | cb_failed: |
| 630 | _ASN_ENCODE_FAILED; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 631 | } |
| 632 | |
Lev Walkin | 9ca8189 | 2004-10-03 10:54:25 +0000 | [diff] [blame] | 633 | static struct OCTET_STRING__xer_escape_table_s { |
| 634 | char *string; |
| 635 | int size; |
| 636 | } OCTET_STRING__xer_escape_table[] = { |
| 637 | #define OSXET(s) { s, sizeof(s) - 1 } |
| 638 | OSXET("\074\156\165\154\057\076"), /* <nul/> */ |
| 639 | OSXET("\074\163\157\150\057\076"), /* <soh/> */ |
| 640 | OSXET("\074\163\164\170\057\076"), /* <stx/> */ |
| 641 | OSXET("\074\145\164\170\057\076"), /* <etx/> */ |
| 642 | OSXET("\074\145\157\164\057\076"), /* <eot/> */ |
| 643 | OSXET("\074\145\156\161\057\076"), /* <enq/> */ |
| 644 | OSXET("\074\141\143\153\057\076"), /* <ack/> */ |
| 645 | OSXET("\074\142\145\154\057\076"), /* <bel/> */ |
| 646 | OSXET("\074\142\163\057\076"), /* <bs/> */ |
| 647 | OSXET("\011"), /* \t */ |
| 648 | OSXET("\012"), /* \n */ |
| 649 | OSXET("\074\166\164\057\076"), /* <vt/> */ |
| 650 | OSXET("\074\146\146\057\076"), /* <ff/> */ |
| 651 | OSXET("\015"), /* \r */ |
| 652 | OSXET("\074\163\157\057\076"), /* <so/> */ |
| 653 | OSXET("\074\163\151\057\076"), /* <si/> */ |
| 654 | OSXET("\074\144\154\145\057\076"), /* <dle/> */ |
| 655 | OSXET("\074\144\143\061\057\076"), /* <de1/> */ |
| 656 | OSXET("\074\144\143\062\057\076"), /* <de2/> */ |
| 657 | OSXET("\074\144\143\063\057\076"), /* <de3/> */ |
| 658 | OSXET("\074\144\143\064\057\076"), /* <de4/> */ |
| 659 | OSXET("\074\156\141\153\057\076"), /* <nak/> */ |
| 660 | OSXET("\074\163\171\156\057\076"), /* <syn/> */ |
| 661 | OSXET("\074\145\164\142\057\076"), /* <etb/> */ |
| 662 | OSXET("\074\143\141\156\057\076"), /* <can/> */ |
| 663 | OSXET("\074\145\155\057\076"), /* <em/> */ |
| 664 | OSXET("\074\163\165\142\057\076"), /* <sub/> */ |
| 665 | OSXET("\074\145\163\143\057\076"), /* <esc/> */ |
| 666 | OSXET("\074\151\163\064\057\076"), /* <is4/> */ |
| 667 | OSXET("\074\151\163\063\057\076"), /* <is3/> */ |
| 668 | OSXET("\074\151\163\062\057\076"), /* <is2/> */ |
| 669 | OSXET("\074\151\163\061\057\076"), /* <is1/> */ |
| 670 | { 0, 0 }, /* " " */ |
| 671 | { 0, 0 }, /* ! */ |
| 672 | { 0, 0 }, /* \" */ |
| 673 | { 0, 0 }, /* # */ |
| 674 | { 0, 0 }, /* $ */ |
| 675 | { 0, 0 }, /* % */ |
| 676 | OSXET("\046\141\155\160\073"), /* & */ |
| 677 | { 0, 0 }, /* ' */ |
| 678 | {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* ()*+,-./ */ |
| 679 | {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* 01234567 */ |
| 680 | {0,0},{0,0},{0,0},{0,0}, /* 89:; */ |
| 681 | OSXET("\046\154\164\073"), /* < */ |
| 682 | { 0, 0 }, /* = */ |
| 683 | OSXET("\046\147\164\073"), /* > */ |
| 684 | }; |
| 685 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 686 | asn_enc_rval_t |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 687 | OCTET_STRING_encode_xer_ascii(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 688 | int ilevel, enum xer_encoder_flags_e flags, |
| 689 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 690 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
| 691 | asn_enc_rval_t er; |
Lev Walkin | 9ca8189 | 2004-10-03 10:54:25 +0000 | [diff] [blame] | 692 | uint8_t *buf, *end; |
| 693 | uint8_t *ss; /* Sequence start */ |
| 694 | ssize_t encoded_len = 0; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 695 | |
| 696 | (void)ilevel; /* Unused argument */ |
| 697 | (void)flags; /* Unused argument */ |
| 698 | |
| 699 | if(!st || !st->buf) |
| 700 | _ASN_ENCODE_FAILED; |
| 701 | |
Lev Walkin | 9ca8189 | 2004-10-03 10:54:25 +0000 | [diff] [blame] | 702 | buf = st->buf; |
| 703 | end = buf + st->size; |
| 704 | for(ss = buf; buf < end; buf++) { |
Lev Walkin | 443d251 | 2004-10-05 06:35:31 +0000 | [diff] [blame] | 705 | unsigned int ch = *buf; |
Lev Walkin | 9ca8189 | 2004-10-03 10:54:25 +0000 | [diff] [blame] | 706 | int s_len; /* Special encoding sequence length */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 707 | |
Lev Walkin | 9ca8189 | 2004-10-03 10:54:25 +0000 | [diff] [blame] | 708 | /* |
| 709 | * Escape certain characters: X.680/11.15 |
| 710 | */ |
| 711 | if(ch < sizeof(OCTET_STRING__xer_escape_table) |
| 712 | /sizeof(OCTET_STRING__xer_escape_table[0]) |
| 713 | && (s_len = OCTET_STRING__xer_escape_table[ch].size)) { |
| 714 | if(((buf - ss) && cb(ss, buf - ss, app_key) < 0) |
| 715 | || cb(OCTET_STRING__xer_escape_table[ch].string, s_len, |
| 716 | app_key) < 0) |
| 717 | _ASN_ENCODE_FAILED; |
| 718 | encoded_len += (buf - ss) + s_len; |
| 719 | ss = buf + 1; |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | encoded_len += (buf - ss); |
| 724 | if((buf - ss) && cb(ss, buf - ss, app_key) < 0) |
| 725 | _ASN_ENCODE_FAILED; |
| 726 | |
| 727 | er.encoded = encoded_len; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 728 | return er; |
| 729 | } |
| 730 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 731 | int |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 732 | OCTET_STRING_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 733 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | 4d9528c | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 734 | static const char *h2c = "0123456789ABCDEF"; |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 735 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 736 | char scratch[16 * 3 + 4]; |
| 737 | char *p = scratch; |
| 738 | uint8_t *buf; |
| 739 | uint8_t *end; |
| 740 | size_t i; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 741 | |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 742 | (void)td; /* Unused argument */ |
| 743 | |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 744 | if(!st || !st->buf) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 745 | |
| 746 | /* |
| 747 | * Dump the contents of the buffer in hexadecimal. |
| 748 | */ |
| 749 | buf = st->buf; |
| 750 | end = buf + st->size; |
| 751 | for(i = 0; buf < end; buf++, i++) { |
| 752 | if(!(i % 16) && (i || st->size > 16)) { |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 753 | if(cb(scratch, p - scratch, app_key) < 0) |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 754 | return -1; |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 755 | _i_INDENT(1); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 756 | p = scratch; |
| 757 | } |
| 758 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 759 | *p++ = h2c[*buf & 0x0F]; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 760 | *p++ = 0x20; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 761 | } |
| 762 | |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 763 | if(p > scratch) { |
| 764 | p--; /* Remove the tail space */ |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 765 | if(cb(scratch, p - scratch, app_key) < 0) |
Lev Walkin | cc6a910 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 766 | return -1; |
| 767 | } |
| 768 | |
| 769 | return 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | int |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 773 | OCTET_STRING_print_ascii(asn_TYPE_descriptor_t *td, const void *sptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 774 | int ilevel, asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 775 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 776 | |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 777 | (void)td; /* Unused argument */ |
| 778 | (void)ilevel; /* Unused argument */ |
| 779 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 780 | if(st && st->buf) { |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 781 | return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 782 | } else { |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 783 | return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 784 | } |
| 785 | } |
| 786 | |
| 787 | void |
Lev Walkin | de4825d | 2004-09-29 13:20:14 +0000 | [diff] [blame] | 788 | OCTET_STRING_free(asn_TYPE_descriptor_t *td, void *sptr, int contents_only) { |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 789 | OCTET_STRING_t *st = (OCTET_STRING_t *)sptr; |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 790 | asn_OCTET_STRING_specifics_t *specs = td->specifics |
| 791 | ? td->specifics : &asn_DEF_OCTET_STRING_specs; |
| 792 | asn_struct_ctx_t *ctx = (asn_struct_ctx_t *) |
| 793 | ((char *)st + specs->ctx_offset); |
| 794 | struct _stack *stck = ctx->ptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 795 | |
| 796 | if(!td || !st) |
| 797 | return; |
| 798 | |
| 799 | ASN_DEBUG("Freeing %s as OCTET STRING", td->name); |
| 800 | |
| 801 | if(st->buf) { |
| 802 | FREEMEM(st->buf); |
| 803 | } |
| 804 | |
| 805 | /* |
| 806 | * Remove decode-time stack. |
| 807 | */ |
| 808 | if(stck) { |
| 809 | while(stck->tail) { |
| 810 | struct _stack_el *sel = stck->tail; |
| 811 | stck->tail = sel->prev; |
| 812 | FREEMEM(sel); |
| 813 | } |
| 814 | FREEMEM(stck); |
| 815 | } |
| 816 | |
| 817 | if(!contents_only) { |
| 818 | FREEMEM(st); |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | /* |
| 823 | * Conversion routines. |
| 824 | */ |
| 825 | int |
| 826 | OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) { |
| 827 | void *buf; |
| 828 | |
| 829 | if(st == 0 || (str == 0 && len)) { |
| 830 | errno = EINVAL; |
| 831 | return -1; |
| 832 | } |
| 833 | |
| 834 | /* |
| 835 | * Clear the OCTET STRING. |
| 836 | */ |
| 837 | if(str == NULL) { |
| 838 | if(st->buf) |
| 839 | FREEMEM(st->buf); |
| 840 | st->size = 0; |
| 841 | return 0; |
| 842 | } |
| 843 | |
| 844 | /* Determine the original string size, if not explicitly given */ |
| 845 | if(len < 0) |
| 846 | len = strlen(str); |
| 847 | |
| 848 | /* Allocate and fill the memory */ |
| 849 | buf = MALLOC(len + 1); |
| 850 | if(buf == NULL) { |
| 851 | return -1; |
| 852 | } else { |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 853 | st->buf = (uint8_t *)buf; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 854 | st->size = len; |
| 855 | } |
| 856 | |
| 857 | memcpy(buf, str, len); |
| 858 | st->buf[st->size] = '\0'; /* Couldn't use memcpy(len+1)! */ |
| 859 | |
| 860 | return 0; |
| 861 | } |
| 862 | |
| 863 | OCTET_STRING_t * |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 864 | OCTET_STRING_new_fromBuf(asn_TYPE_descriptor_t *td, const char *str, int len) { |
| 865 | asn_OCTET_STRING_specifics_t *specs = td->specifics |
| 866 | ? td->specifics : &asn_DEF_OCTET_STRING_specs; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 867 | OCTET_STRING_t *st; |
| 868 | |
Lev Walkin | bbd9325 | 2004-10-12 05:57:23 +0000 | [diff] [blame] | 869 | st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 870 | if(st && str && OCTET_STRING_fromBuf(st, str, len)) { |
| 871 | free(st); |
| 872 | st = NULL; |
| 873 | } |
| 874 | |
| 875 | return st; |
| 876 | } |
| 877 | |