2 * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.
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3 * All rights reserved.
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4 * Redistribution and modifications are permitted subject to BSD license.
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6 #include <asn_internal.h>
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7 #include <OCTET_STRING.h>
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8 #include <BIT_STRING.h> /* for .bits_unused member */
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12 * OCTET STRING basic type description.
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14 static const ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
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15 (ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
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17 asn_OCTET_STRING_specifics_t asn_SPC_OCTET_STRING_specs = {
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18 sizeof(OCTET_STRING_t),
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19 offsetof(OCTET_STRING_t, _asn_ctx),
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23 asn_TYPE_operation_t asn_OP_OCTET_STRING = {
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25 OCTET_STRING_print, /* OCTET STRING generally means a non-ascii sequence */
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26 OCTET_STRING_compare,
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27 OCTET_STRING_decode_ber,
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28 OCTET_STRING_encode_der,
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29 OCTET_STRING_decode_xer_hex,
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30 OCTET_STRING_encode_xer,
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31 #ifdef ASN_DISABLE_OER_SUPPORT
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35 OCTET_STRING_decode_oer,
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36 OCTET_STRING_encode_oer,
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37 #endif /* ASN_DISABLE_OER_SUPPORT */
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38 #ifdef ASN_DISABLE_PER_SUPPORT
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44 OCTET_STRING_decode_uper, /* Unaligned PER decoder */
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45 OCTET_STRING_encode_uper, /* Unaligned PER encoder */
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46 OCTET_STRING_decode_aper, /* Aligned PER decoder */
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47 OCTET_STRING_encode_aper, /* Aligned PER encoder */
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48 #endif /* ASN_DISABLE_PER_SUPPORT */
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49 OCTET_STRING_random_fill,
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50 0 /* Use generic outmost tag fetcher */
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52 asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
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53 "OCTET STRING", /* Canonical name */
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54 "OCTET_STRING", /* XML tag name */
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55 &asn_OP_OCTET_STRING,
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56 asn_DEF_OCTET_STRING_tags,
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57 sizeof(asn_DEF_OCTET_STRING_tags)
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58 / sizeof(asn_DEF_OCTET_STRING_tags[0]),
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59 asn_DEF_OCTET_STRING_tags, /* Same as above */
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60 sizeof(asn_DEF_OCTET_STRING_tags)
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61 / sizeof(asn_DEF_OCTET_STRING_tags[0]),
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62 { 0, 0, asn_generic_no_constraint },
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63 0, 0, /* No members */
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64 &asn_SPC_OCTET_STRING_specs
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70 #define _CH_PHASE(ctx, inc) do { \
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71 if(ctx->phase == 0) \
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73 ctx->phase += inc; \
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75 #define NEXT_PHASE(ctx) _CH_PHASE(ctx, +1)
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76 #define PREV_PHASE(ctx) _CH_PHASE(ctx, -1)
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79 #define ADVANCE(num_bytes) do { \
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80 size_t num = (num_bytes); \
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81 buf_ptr = ((const char *)buf_ptr) + num; \
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83 consumed_myself += num; \
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87 #define RETURN(_code) do { \
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88 asn_dec_rval_t tmprval; \
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89 tmprval.code = _code; \
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90 tmprval.consumed = consumed_myself; \
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95 #define APPEND(bufptr, bufsize) do { \
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96 size_t _bs = (bufsize); /* Append size */ \
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97 size_t _ns = ctx->context; /* Allocated now */ \
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98 size_t _es = st->size + _bs; /* Expected size */ \
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99 /* int is really a typeof(st->size): */ \
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100 if((int)_es < 0) RETURN(RC_FAIL); \
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103 /* Be nice and round to the memory allocator */ \
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104 do { _ns = _ns ? _ns << 1 : 16; } \
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105 while(_ns <= _es); \
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106 /* int is really a typeof(st->size): */ \
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107 if((int)_ns < 0) RETURN(RC_FAIL); \
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108 ptr = REALLOC(st->buf, _ns); \
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110 st->buf = (uint8_t *)ptr; \
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111 ctx->context = _ns; \
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115 ASN_DEBUG("Reallocating into %ld", (long)_ns); \
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117 memcpy(st->buf + st->size, bufptr, _bs); \
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118 /* Convenient nul-termination */ \
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119 st->buf[_es] = '\0'; \
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124 * The main reason why ASN.1 is still alive is that too much time and effort
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125 * is necessary for learning it more or less adequately, thus creating a gut
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126 * necessity to demonstrate that aquired skill everywhere afterwards.
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127 * No, I am not going to explain what the following stuff is.
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130 ber_tlv_len_t left; /* What's left to read (or -1) */
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131 ber_tlv_len_t got; /* What was actually processed */
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132 unsigned cont_level; /* Depth of subcontainment */
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133 int want_nulls; /* Want null "end of content" octets? */
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134 int bits_chopped; /* Flag in BIT STRING mode */
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135 ber_tlv_tag_t tag; /* For debugging purposes */
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136 struct _stack_el *prev;
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137 struct _stack_el *next;
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140 struct _stack_el *tail;
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141 struct _stack_el *cur_ptr;
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144 static struct _stack_el *
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145 OS__add_stack_el(struct _stack *st) {
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146 struct _stack_el *nel;
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149 * Reuse the old stack frame or allocate a new one.
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151 if(st->cur_ptr && st->cur_ptr->next) {
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152 nel = st->cur_ptr->next;
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153 nel->bits_chopped = 0;
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155 /* Retain the nel->cont_level, it's correct. */
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157 nel = (struct _stack_el *)CALLOC(1, sizeof(struct _stack_el));
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162 /* Increase a subcontainment depth */
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163 nel->cont_level = st->tail->cont_level + 1;
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164 st->tail->next = nel;
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166 nel->prev = st->tail;
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175 static struct _stack *
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177 return (struct _stack *)CALLOC(1, sizeof(struct _stack));
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181 * Decode OCTET STRING type.
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184 OCTET_STRING_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
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185 const asn_TYPE_descriptor_t *td, void **sptr,
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186 const void *buf_ptr, size_t size, int tag_mode) {
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187 const asn_OCTET_STRING_specifics_t *specs = td->specifics
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188 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
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189 : &asn_SPC_OCTET_STRING_specs;
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190 BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
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191 asn_dec_rval_t rval;
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192 asn_struct_ctx_t *ctx;
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193 ssize_t consumed_myself = 0;
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194 struct _stack *stck; /* Expectations stack structure */
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195 struct _stack_el *sel = 0; /* Stack element */
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197 enum asn_OS_Subvariant type_variant = specs->subvariant;
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199 ASN_DEBUG("Decoding %s as %s (frame %ld)",
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201 (type_variant == ASN_OSUBV_STR) ?
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202 "OCTET STRING" : "OS-SpecialCase",
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206 * Create the string if does not exist.
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209 st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
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210 if(st == NULL) RETURN(RC_FAIL);
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213 /* Restore parsing context */
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214 ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
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216 switch(ctx->phase) {
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221 rval = ber_check_tags(opt_codec_ctx, td, ctx,
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222 buf_ptr, size, tag_mode, -1,
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223 &ctx->left, &tlv_constr);
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224 if(rval.code != RC_OK)
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229 * Complex operation, requires stack of expectations.
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231 ctx->ptr = _new_stack();
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237 * Jump into stackless primitive decoding.
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240 if(type_variant == ASN_OSUBV_ANY && tag_mode != 1)
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241 APPEND(buf_ptr, rval.consumed);
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242 ADVANCE(rval.consumed);
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251 * Fill the stack with expectations.
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253 stck = (struct _stack *)ctx->ptr;
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254 sel = stck->cur_ptr;
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256 ber_tlv_tag_t tlv_tag;
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257 ber_tlv_len_t tlv_len;
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258 ber_tlv_tag_t expected_tag;
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259 ssize_t tl, ll, tlvl;
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260 /* This one works even if (sel->left == -1) */
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261 size_t Left = ((!sel||(size_t)sel->left >= size)
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262 ?size:(size_t)sel->left);
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265 ASN_DEBUG("%p, s->l=%ld, s->wn=%ld, s->g=%ld\n", (void *)sel,
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266 (long)(sel?sel->left:0),
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267 (long)(sel?sel->want_nulls:0),
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268 (long)(sel?sel->got:0)
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270 if(sel && sel->left <= 0 && sel->want_nulls == 0) {
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272 struct _stack_el *prev = sel->prev;
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273 if(prev->left != -1) {
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274 if(prev->left < sel->got)
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276 prev->left -= sel->got;
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278 prev->got += sel->got;
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279 sel = stck->cur_ptr = prev;
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284 sel = stck->cur_ptr = 0;
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285 break; /* Nothing to wait */
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289 tl = ber_fetch_tag(buf_ptr, Left, &tlv_tag);
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290 ASN_DEBUG("fetch tag(size=%ld,L=%ld), %sstack, left=%ld, wn=%ld, tl=%ld",
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291 (long)size, (long)Left, sel?"":"!",
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292 (long)(sel?sel->left:0),
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293 (long)(sel?sel->want_nulls:0),
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296 case -1: RETURN(RC_FAIL);
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297 case 0: RETURN(RC_WMORE);
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300 tlv_constr = BER_TLV_CONSTRUCTED(buf_ptr);
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302 ll = ber_fetch_length(tlv_constr,
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303 (const char *)buf_ptr + tl,Left - tl,&tlv_len);
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304 ASN_DEBUG("Got tag=%s, tc=%d, left=%ld, tl=%ld, len=%ld, ll=%ld",
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305 ber_tlv_tag_string(tlv_tag), tlv_constr,
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306 (long)Left, (long)tl, (long)tlv_len, (long)ll);
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308 case -1: RETURN(RC_FAIL);
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309 case 0: RETURN(RC_WMORE);
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312 if(sel && sel->want_nulls
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313 && ((const uint8_t *)buf_ptr)[0] == 0
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314 && ((const uint8_t *)buf_ptr)[1] == 0)
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317 ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls);
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319 if(type_variant == ASN_OSUBV_ANY
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320 && (tag_mode != 1 || sel->cont_level))
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325 if(sel->left != -1) {
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326 sel->left -= 2; /* assert(sel->left >= 2) */
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330 if(sel->want_nulls == 0) {
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331 /* Move to the next expectation */
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340 * Set up expected tags,
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341 * depending on ASN.1 type being decoded.
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343 switch(type_variant) {
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344 case ASN_OSUBV_BIT:
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345 /* X.690: 8.6.4.1, NOTE 2 */
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347 case ASN_OSUBV_STR:
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350 unsigned level = sel->cont_level;
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351 if(level < td->all_tags_count) {
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352 expected_tag = td->all_tags[level];
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354 } else if(td->all_tags_count) {
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355 expected_tag = td->all_tags
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356 [td->all_tags_count - 1];
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359 /* else, Fall through */
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362 case ASN_OSUBV_ANY:
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363 expected_tag = tlv_tag;
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368 if(tlv_tag != expected_tag) {
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370 ber_tlv_tag_snprint(tlv_tag,
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371 buf[0], sizeof(buf[0]));
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372 ber_tlv_tag_snprint(td->tags[td->tags_count-1],
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373 buf[1], sizeof(buf[1]));
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374 ASN_DEBUG("Tag does not match expectation: %s != %s",
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379 tlvl = tl + ll; /* Combined length of T and L encoding */
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380 if((tlv_len + tlvl) < 0) {
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381 /* tlv_len value is too big */
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382 ASN_DEBUG("TLV encoding + length (%ld) is too big",
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388 * Append a new expectation.
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390 sel = OS__add_stack_el(stck);
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391 if(!sel) RETURN(RC_FAIL);
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393 sel->tag = tlv_tag;
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395 sel->want_nulls = (tlv_len==-1);
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396 if(sel->prev && sel->prev->left != -1) {
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397 /* Check that the parent frame is big enough */
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398 if(sel->prev->left < tlvl + (tlv_len==-1?0:tlv_len))
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401 sel->left = sel->prev->left - tlvl;
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403 sel->left = tlv_len;
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405 sel->left = tlv_len;
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407 if(type_variant == ASN_OSUBV_ANY
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408 && (tag_mode != 1 || sel->cont_level))
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409 APPEND(buf_ptr, tlvl);
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413 ASN_DEBUG("+EXPECT2 got=%ld left=%ld, wn=%d, clvl=%u",
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414 (long)sel->got, (long)sel->left,
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415 sel->want_nulls, sel->cont_level);
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417 } while(tlv_constr);
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419 /* Finished operation, "phase out" */
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420 ASN_DEBUG("Phase out");
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421 _CH_PHASE(ctx, +3);
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428 stck = (struct _stack *)ctx->ptr;
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429 sel = stck->cur_ptr;
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430 ASN_DEBUG("Phase 2: Need %ld bytes, size=%ld, alrg=%ld, wn=%d",
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431 (long)sel->left, (long)size, (long)sel->got,
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436 assert(sel->left >= 0);
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438 len = ((ber_tlv_len_t)size < sel->left)
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439 ? (ber_tlv_len_t)size : sel->left;
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441 if(type_variant == ASN_OSUBV_BIT
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442 && sel->bits_chopped == 0) {
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443 /* Put the unused-bits-octet away */
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444 st->bits_unused = *(const uint8_t *)buf_ptr;
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445 APPEND(((const char *)buf_ptr+1), (len - 1));
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446 sel->bits_chopped = 1;
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448 APPEND(buf_ptr, len);
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456 ASN_DEBUG("OS left %ld, size = %ld, wn=%d\n",
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457 (long)sel->left, (long)size, sel->want_nulls);
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468 * Primitive form, no stack required.
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470 assert(ctx->left >= 0);
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472 if(size < (size_t)ctx->left) {
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473 if(!size) RETURN(RC_WMORE);
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474 if(type_variant == ASN_OSUBV_BIT && !ctx->context) {
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475 st->bits_unused = *(const uint8_t *)buf_ptr;
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479 APPEND(buf_ptr, size);
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480 assert(ctx->context > 0);
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485 if(type_variant == ASN_OSUBV_BIT
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486 && !ctx->context && ctx->left) {
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487 st->bits_unused = *(const uint8_t *)buf_ptr;
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491 APPEND(buf_ptr, ctx->left);
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492 ADVANCE(ctx->left);
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501 ASN_DEBUG("3sel p=%p, wn=%d, l=%ld, g=%ld, size=%ld",
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502 (void *)sel->prev, sel->want_nulls,
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503 (long)sel->left, (long)sel->got, (long)size);
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504 if(sel->prev || sel->want_nulls > 1 || sel->left > 0) {
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510 * BIT STRING-specific processing.
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512 if(type_variant == ASN_OSUBV_BIT) {
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514 if(st->bits_unused < 0 || st->bits_unused > 7) {
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517 /* Finalize BIT STRING: zero out unused bits. */
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518 st->buf[st->size-1] &= 0xff << st->bits_unused;
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520 if(st->bits_unused) {
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526 ASN_DEBUG("Took %ld bytes to encode %s: [%s]:%ld",
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527 (long)consumed_myself, td->name,
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528 (type_variant == ASN_OSUBV_STR) ? (char *)st->buf : "<data>",
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536 * Encode OCTET STRING type using DER.
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539 OCTET_STRING_encode_der(const asn_TYPE_descriptor_t *td, const void *sptr,
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540 int tag_mode, ber_tlv_tag_t tag,
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541 asn_app_consume_bytes_f *cb, void *app_key) {
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542 asn_enc_rval_t er = { 0, 0, 0 };
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543 const asn_OCTET_STRING_specifics_t *specs = td->specifics
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544 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
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545 : &asn_SPC_OCTET_STRING_specs;
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546 const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
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547 enum asn_OS_Subvariant type_variant = specs->subvariant;
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548 int fix_last_byte = 0;
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550 ASN_DEBUG("%s %s as OCTET STRING",
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551 cb?"Estimating":"Encoding", td->name);
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556 if(type_variant != ASN_OSUBV_ANY || tag_mode == 1) {
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557 er.encoded = der_write_tags(td,
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558 (type_variant == ASN_OSUBV_BIT) + st->size,
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559 tag_mode, type_variant == ASN_OSUBV_ANY, tag,
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561 if(er.encoded == -1) {
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562 er.failed_type = td;
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563 er.structure_ptr = sptr;
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567 /* Disallow: [<tag>] IMPLICIT ANY */
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568 assert(type_variant != ASN_OSUBV_ANY || tag_mode != -1);
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573 er.encoded += (type_variant == ASN_OSUBV_BIT) + st->size;
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574 ASN__ENCODED_OK(er);
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578 * Prepare to deal with the last octet of BIT STRING.
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580 if(type_variant == ASN_OSUBV_BIT) {
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581 uint8_t b = st->bits_unused & 0x07;
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582 if(b && st->size) fix_last_byte = 1;
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583 ASN__CALLBACK(&b, 1);
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586 /* Invoke callback for the main part of the buffer */
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587 ASN__CALLBACK(st->buf, st->size - fix_last_byte);
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589 /* The last octet should be stripped off the unused bits */
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590 if(fix_last_byte) {
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591 uint8_t b = st->buf[st->size-1] & (0xff << st->bits_unused);
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592 ASN__CALLBACK(&b, 1);
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595 ASN__ENCODED_OK(er);
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597 ASN__ENCODE_FAILED;
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601 OCTET_STRING_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
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602 int ilevel, enum xer_encoder_flags_e flags,
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603 asn_app_consume_bytes_f *cb, void *app_key) {
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604 const char * const h2c = "0123456789ABCDEF";
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605 const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
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606 asn_enc_rval_t er = { 0, 0, 0 };
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607 char scratch[16 * 3 + 4];
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613 if(!st || (!st->buf && st->size))
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614 ASN__ENCODE_FAILED;
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619 * Dump the contents of the buffer in hexadecimal.
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622 end = buf + st->size;
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623 if(flags & XER_F_CANONICAL) {
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624 char *scend = scratch + (sizeof(scratch) - 2);
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625 for(; buf < end; buf++) {
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627 ASN__CALLBACK(scratch, p - scratch);
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630 *p++ = h2c[(*buf >> 4) & 0x0F];
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631 *p++ = h2c[*buf & 0x0F];
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634 ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
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636 for(i = 0; buf < end; buf++, i++) {
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637 if(!(i % 16) && (i || st->size > 16)) {
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638 ASN__CALLBACK(scratch, p-scratch);
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640 ASN__TEXT_INDENT(1, ilevel);
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642 *p++ = h2c[(*buf >> 4) & 0x0F];
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643 *p++ = h2c[*buf & 0x0F];
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647 p--; /* Remove the tail space */
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648 ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
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650 ASN__TEXT_INDENT(1, ilevel-1);
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654 ASN__ENCODED_OK(er);
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656 ASN__ENCODE_FAILED;
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659 static const struct OCTET_STRING__xer_escape_table_s {
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660 const char *string;
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662 } OCTET_STRING__xer_escape_table[] = {
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663 #define OSXET(s) { s, sizeof(s) - 1 }
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664 OSXET("\074\156\165\154\057\076"), /* <nul/> */
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665 OSXET("\074\163\157\150\057\076"), /* <soh/> */
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666 OSXET("\074\163\164\170\057\076"), /* <stx/> */
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667 OSXET("\074\145\164\170\057\076"), /* <etx/> */
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668 OSXET("\074\145\157\164\057\076"), /* <eot/> */
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669 OSXET("\074\145\156\161\057\076"), /* <enq/> */
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670 OSXET("\074\141\143\153\057\076"), /* <ack/> */
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671 OSXET("\074\142\145\154\057\076"), /* <bel/> */
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672 OSXET("\074\142\163\057\076"), /* <bs/> */
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673 OSXET("\011"), /* \t */
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674 OSXET("\012"), /* \n */
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675 OSXET("\074\166\164\057\076"), /* <vt/> */
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676 OSXET("\074\146\146\057\076"), /* <ff/> */
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677 OSXET("\015"), /* \r */
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678 OSXET("\074\163\157\057\076"), /* <so/> */
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679 OSXET("\074\163\151\057\076"), /* <si/> */
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680 OSXET("\074\144\154\145\057\076"), /* <dle/> */
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681 OSXET("\074\144\143\061\057\076"), /* <de1/> */
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682 OSXET("\074\144\143\062\057\076"), /* <de2/> */
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683 OSXET("\074\144\143\063\057\076"), /* <de3/> */
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684 OSXET("\074\144\143\064\057\076"), /* <de4/> */
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685 OSXET("\074\156\141\153\057\076"), /* <nak/> */
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686 OSXET("\074\163\171\156\057\076"), /* <syn/> */
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687 OSXET("\074\145\164\142\057\076"), /* <etb/> */
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688 OSXET("\074\143\141\156\057\076"), /* <can/> */
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689 OSXET("\074\145\155\057\076"), /* <em/> */
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690 OSXET("\074\163\165\142\057\076"), /* <sub/> */
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691 OSXET("\074\145\163\143\057\076"), /* <esc/> */
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692 OSXET("\074\151\163\064\057\076"), /* <is4/> */
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693 OSXET("\074\151\163\063\057\076"), /* <is3/> */
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694 OSXET("\074\151\163\062\057\076"), /* <is2/> */
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695 OSXET("\074\151\163\061\057\076"), /* <is1/> */
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696 { 0, 0 }, /* " " */
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702 OSXET("\046\141\155\160\073"), /* & */
\r
704 {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* ()*+,-./ */
\r
705 {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* 01234567 */
\r
706 {0,0},{0,0},{0,0},{0,0}, /* 89:; */
\r
707 OSXET("\046\154\164\073"), /* < */
\r
709 OSXET("\046\147\164\073"), /* > */
\r
713 OS__check_escaped_control_char(const void *buf, int size) {
\r
716 * Inefficient algorithm which translates the escape sequences
\r
717 * defined above into characters. Returns -1 if not found.
\r
718 * TODO: replace by a faster algorithm (bsearch(), hash or
\r
719 * nested table lookups).
\r
721 for(i = 0; i < 32 /* Don't spend time on the bottom half */; i++) {
\r
722 const struct OCTET_STRING__xer_escape_table_s *el;
\r
723 el = &OCTET_STRING__xer_escape_table[i];
\r
724 if(el->size == size && memcmp(buf, el->string, size) == 0)
\r
731 OCTET_STRING__handle_control_chars(void *struct_ptr, const void *chunk_buf, size_t chunk_size) {
\r
733 * This might be one of the escape sequences
\r
734 * for control characters. Check it out.
\r
737 int control_char = OS__check_escaped_control_char(chunk_buf,chunk_size);
\r
738 if(control_char >= 0) {
\r
739 OCTET_STRING_t *st = (OCTET_STRING_t *)struct_ptr;
\r
740 void *p = REALLOC(st->buf, st->size + 2);
\r
742 st->buf = (uint8_t *)p;
\r
743 st->buf[st->size++] = control_char;
\r
744 st->buf[st->size] = '\0'; /* nul-termination */
\r
749 return -1; /* No, it's not */
\r
753 OCTET_STRING_encode_xer_utf8(const asn_TYPE_descriptor_t *td, const void *sptr,
\r
754 int ilevel, enum xer_encoder_flags_e flags,
\r
755 asn_app_consume_bytes_f *cb, void *app_key) {
\r
756 const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
\r
757 asn_enc_rval_t er = { 0, 0, 0 };
\r
758 uint8_t *buf, *end;
\r
759 uint8_t *ss; /* Sequence start */
\r
760 ssize_t encoded_len = 0;
\r
762 (void)ilevel; /* Unused argument */
\r
763 (void)flags; /* Unused argument */
\r
765 if(!st || (!st->buf && st->size))
\r
766 ASN__ENCODE_FAILED;
\r
769 end = buf + st->size;
\r
770 for(ss = buf; buf < end; buf++) {
\r
771 unsigned int ch = *buf;
\r
772 int s_len; /* Special encoding sequence length */
\r
775 * Escape certain characters: X.680/11.15
\r
777 if(ch < sizeof(OCTET_STRING__xer_escape_table)
\r
778 /sizeof(OCTET_STRING__xer_escape_table[0])
\r
779 && (s_len = OCTET_STRING__xer_escape_table[ch].size)) {
\r
780 if(((buf - ss) && cb(ss, buf - ss, app_key) < 0)
\r
781 || cb(OCTET_STRING__xer_escape_table[ch].string, s_len,
\r
783 ASN__ENCODE_FAILED;
\r
784 encoded_len += (buf - ss) + s_len;
\r
789 encoded_len += (buf - ss);
\r
790 if((buf - ss) && cb(ss, buf - ss, app_key) < 0)
\r
791 ASN__ENCODE_FAILED;
\r
793 er.encoded = encoded_len;
\r
794 ASN__ENCODED_OK(er);
\r
798 * Convert from hexadecimal format (cstring): "AB CD EF"
\r
800 static ssize_t OCTET_STRING__convert_hexadecimal(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
\r
801 OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
\r
802 const char *chunk_stop = (const char *)chunk_buf;
\r
803 const char *p = chunk_stop;
\r
804 const char *pend = p + chunk_size;
\r
805 unsigned int clv = 0;
\r
806 int half = 0; /* Half bit */
\r
809 /* Reallocate buffer according to high cap estimation */
\r
810 size_t new_size = st->size + (chunk_size + 1) / 2;
\r
811 void *nptr = REALLOC(st->buf, new_size + 1);
\r
812 if(!nptr) return -1;
\r
813 st->buf = (uint8_t *)nptr;
\r
814 buf = st->buf + st->size;
\r
817 * If something like " a b c " appears here, the " a b":3 will be
\r
818 * converted, and the rest skipped. That is, unless buf_size is greater
\r
819 * than chunk_size, then it'll be equivalent to "ABC0".
\r
821 for(; p < pend; p++) {
\r
822 int ch = *(const unsigned char *)p;
\r
824 case 0x09: case 0x0a: case 0x0c: case 0x0d:
\r
826 /* Ignore whitespace */
\r
828 case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
\r
829 case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
\r
830 clv = (clv << 4) + (ch - 0x30);
\r
832 case 0x41: case 0x42: case 0x43: /* ABC */
\r
833 case 0x44: case 0x45: case 0x46: /* DEF */
\r
834 clv = (clv << 4) + (ch - 0x41 + 10);
\r
836 case 0x61: case 0x62: case 0x63: /* abc */
\r
837 case 0x64: case 0x65: case 0x66: /* def */
\r
838 clv = (clv << 4) + (ch - 0x61 + 10);
\r
841 *buf = 0; /* JIC */
\r
847 chunk_stop = p + 1;
\r
852 * Check partial decoding.
\r
857 * Partial specification is fine,
\r
858 * because no more more PXER_TEXT data is available.
\r
867 st->size = buf - st->buf; /* Adjust the buffer size */
\r
868 assert(st->size <= new_size);
\r
869 st->buf[st->size] = 0; /* Courtesy termination */
\r
871 return (chunk_stop - (const char *)chunk_buf); /* Converted size */
\r
875 * Convert from binary format: "00101011101"
\r
877 static ssize_t OCTET_STRING__convert_binary(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
\r
878 BIT_STRING_t *st = (BIT_STRING_t *)sptr;
\r
879 const char *p = (const char *)chunk_buf;
\r
880 const char *pend = p + chunk_size;
\r
881 int bits_unused = st->bits_unused & 0x7;
\r
884 /* Reallocate buffer according to high cap estimation */
\r
885 size_t new_size = st->size + (chunk_size + 7) / 8;
\r
886 void *nptr = REALLOC(st->buf, new_size + 1);
\r
887 if(!nptr) return -1;
\r
888 st->buf = (uint8_t *)nptr;
\r
889 buf = st->buf + st->size;
\r
893 if(bits_unused == 0)
\r
899 * Convert series of 0 and 1 into the octet string.
\r
901 for(; p < pend; p++) {
\r
902 int ch = *(const unsigned char *)p;
\r
904 case 0x09: case 0x0a: case 0x0c: case 0x0d:
\r
906 /* Ignore whitespace */
\r
910 if(bits_unused-- <= 0) {
\r
911 *++buf = 0; /* Clean the cell */
\r
914 *buf |= (ch&1) << bits_unused;
\r
917 st->bits_unused = bits_unused;
\r
922 if(bits_unused == 8) {
\r
923 st->size = buf - st->buf;
\r
924 st->bits_unused = 0;
\r
926 st->size = buf - st->buf + 1;
\r
927 st->bits_unused = bits_unused;
\r
930 assert(st->size <= new_size);
\r
931 st->buf[st->size] = 0; /* Courtesy termination */
\r
933 return chunk_size; /* Converted in full */
\r
937 * Something like strtod(), but with stricter rules.
\r
940 OS__strtoent(int base, const char *buf, const char *end, int32_t *ret_value) {
\r
941 const int32_t last_unicode_codepoint = 0x10ffff;
\r
945 for(p = buf; p < end; p++) {
\r
949 case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
\r
950 case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
\r
951 val = val * base + (ch - 0x30);
\r
953 case 0x41: case 0x42: case 0x43: /* ABC */
\r
954 case 0x44: case 0x45: case 0x46: /* DEF */
\r
955 val = val * base + (ch - 0x41 + 10);
\r
957 case 0x61: case 0x62: case 0x63: /* abc */
\r
958 case 0x64: case 0x65: case 0x66: /* def */
\r
959 val = val * base + (ch - 0x61 + 10);
\r
961 case 0x3b: /* ';' */
\r
963 return (p - buf) + 1;
\r
965 return -1; /* Character set error */
\r
968 /* Value exceeds the Unicode range. */
\r
969 if(val > last_unicode_codepoint) {
\r
979 * Convert from the plain UTF-8 format, expanding entity references: "2 < 3"
\r
982 OCTET_STRING__convert_entrefs(void *sptr, const void *chunk_buf,
\r
983 size_t chunk_size, int have_more) {
\r
984 OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
\r
985 const char *p = (const char *)chunk_buf;
\r
986 const char *pend = p + chunk_size;
\r
989 /* Reallocate buffer */
\r
990 size_t new_size = st->size + chunk_size;
\r
991 void *nptr = REALLOC(st->buf, new_size + 1);
\r
992 if(!nptr) return -1;
\r
993 st->buf = (uint8_t *)nptr;
\r
994 buf = st->buf + st->size;
\r
997 * Convert series of 0 and 1 into the octet string.
\r
999 for(; p < pend; p++) {
\r
1000 int ch = *(const unsigned char *)p;
\r
1001 int len; /* Length of the rest of the chunk */
\r
1003 if(ch != 0x26 /* '&' */) {
\r
1005 continue; /* That was easy... */
\r
1009 * Process entity reference.
\r
1011 len = chunk_size - (p - (const char *)chunk_buf);
\r
1012 if(len == 1 /* "&" */) goto want_more;
\r
1013 if(p[1] == 0x23 /* '#' */) {
\r
1014 const char *pval; /* Pointer to start of digits */
\r
1015 int32_t val = 0; /* Entity reference value */
\r
1018 if(len == 2 /* "&#" */) goto want_more;
\r
1019 if(p[2] == 0x78 /* 'x' */)
\r
1020 pval = p + 3, base = 16;
\r
1022 pval = p + 2, base = 10;
\r
1023 len = OS__strtoent(base, pval, p + len, &val);
\r
1025 /* Invalid charset. Just copy verbatim. */
\r
1029 if(!len || pval[len-1] != 0x3b) goto want_more;
\r
1031 p += (pval - p) + len - 1; /* Advance past entref */
\r
1034 *buf++ = (char)val;
\r
1035 } else if(val < 0x800) {
\r
1036 *buf++ = 0xc0 | ((val >> 6));
\r
1037 *buf++ = 0x80 | ((val & 0x3f));
\r
1038 } else if(val < 0x10000) {
\r
1039 *buf++ = 0xe0 | ((val >> 12));
\r
1040 *buf++ = 0x80 | ((val >> 6) & 0x3f);
\r
1041 *buf++ = 0x80 | ((val & 0x3f));
\r
1042 } else if(val < 0x200000) {
\r
1043 *buf++ = 0xf0 | ((val >> 18));
\r
1044 *buf++ = 0x80 | ((val >> 12) & 0x3f);
\r
1045 *buf++ = 0x80 | ((val >> 6) & 0x3f);
\r
1046 *buf++ = 0x80 | ((val & 0x3f));
\r
1047 } else if(val < 0x4000000) {
\r
1048 *buf++ = 0xf8 | ((val >> 24));
\r
1049 *buf++ = 0x80 | ((val >> 18) & 0x3f);
\r
1050 *buf++ = 0x80 | ((val >> 12) & 0x3f);
\r
1051 *buf++ = 0x80 | ((val >> 6) & 0x3f);
\r
1052 *buf++ = 0x80 | ((val & 0x3f));
\r
1054 *buf++ = 0xfc | ((val >> 30) & 0x1);
\r
1055 *buf++ = 0x80 | ((val >> 24) & 0x3f);
\r
1056 *buf++ = 0x80 | ((val >> 18) & 0x3f);
\r
1057 *buf++ = 0x80 | ((val >> 12) & 0x3f);
\r
1058 *buf++ = 0x80 | ((val >> 6) & 0x3f);
\r
1059 *buf++ = 0x80 | ((val & 0x3f));
\r
1063 * Ugly, limited parsing of & > <
\r
1065 char *sc = (char *)memchr(p, 0x3b, len > 5 ? 5 : len);
\r
1066 if(!sc) goto want_more;
\r
1068 && p[1] == 0x61 /* 'a' */
\r
1069 && p[2] == 0x6d /* 'm' */
\r
1070 && p[3] == 0x70 /* 'p' */) {
\r
1075 if((sc - p) == 3) {
\r
1076 if(p[1] == 0x6c) {
\r
1077 *buf = 0x3c; /* '<' */
\r
1078 } else if(p[1] == 0x67) {
\r
1079 *buf = 0x3e; /* '>' */
\r
1081 /* Unsupported entity reference */
\r
1085 if(p[2] != 0x74) {
\r
1086 /* Unsupported entity reference */
\r
1094 /* Unsupported entity reference */
\r
1102 * We know that no more data (of the same type)
\r
1103 * is coming. Copy the rest verbatim.
\r
1108 chunk_size = (p - (const char *)chunk_buf);
\r
1109 /* Processing stalled: need more data */
\r
1113 st->size = buf - st->buf;
\r
1114 assert(st->size <= new_size);
\r
1115 st->buf[st->size] = 0; /* Courtesy termination */
\r
1117 return chunk_size; /* Converted in full */
\r
1121 * Decode OCTET STRING from the XML element's body.
\r
1123 static asn_dec_rval_t
\r
1124 OCTET_STRING__decode_xer(
\r
1125 const asn_codec_ctx_t *opt_codec_ctx, const asn_TYPE_descriptor_t *td,
\r
1126 void **sptr, const char *opt_mname, const void *buf_ptr, size_t size,
\r
1127 int (*opt_unexpected_tag_decoder)(void *struct_ptr, const void *chunk_buf,
\r
1128 size_t chunk_size),
\r
1129 ssize_t (*body_receiver)(void *struct_ptr, const void *chunk_buf,
\r
1130 size_t chunk_size, int have_more)) {
\r
1131 OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
\r
1132 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
1133 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
1134 : &asn_SPC_OCTET_STRING_specs;
\r
1135 const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
\r
1136 asn_struct_ctx_t *ctx; /* Per-structure parser context */
\r
1137 asn_dec_rval_t rval; /* Return value from the decoder */
\r
1141 * Create the string if does not exist.
\r
1144 st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
\r
1145 *sptr = (void *)st;
\r
1146 if(!st) goto sta_failed;
\r
1152 /* This is separate from above section */
\r
1153 st->buf = (uint8_t *)CALLOC(1, 1);
\r
1155 if(st_allocated) {
\r
1164 /* Restore parsing context */
\r
1165 ctx = (asn_struct_ctx_t *)(((char *)*sptr) + specs->ctx_offset);
\r
1167 return xer_decode_general(opt_codec_ctx, ctx, *sptr, xml_tag,
\r
1168 buf_ptr, size, opt_unexpected_tag_decoder, body_receiver);
\r
1173 rval.code = RC_FAIL;
\r
1174 rval.consumed = 0;
\r
1179 * Decode OCTET STRING from the hexadecimal data.
\r
1182 OCTET_STRING_decode_xer_hex(const asn_codec_ctx_t *opt_codec_ctx,
\r
1183 const asn_TYPE_descriptor_t *td, void **sptr,
\r
1184 const char *opt_mname, const void *buf_ptr,
\r
1186 return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
\r
1187 buf_ptr, size, 0, OCTET_STRING__convert_hexadecimal);
\r
1191 * Decode OCTET STRING from the binary (0/1) data.
\r
1194 OCTET_STRING_decode_xer_binary(const asn_codec_ctx_t *opt_codec_ctx,
\r
1195 const asn_TYPE_descriptor_t *td, void **sptr,
\r
1196 const char *opt_mname, const void *buf_ptr,
\r
1198 return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
\r
1199 buf_ptr, size, 0, OCTET_STRING__convert_binary);
\r
1203 * Decode OCTET STRING from the string (ASCII/UTF-8) data.
\r
1206 OCTET_STRING_decode_xer_utf8(const asn_codec_ctx_t *opt_codec_ctx,
\r
1207 const asn_TYPE_descriptor_t *td, void **sptr,
\r
1208 const char *opt_mname, const void *buf_ptr,
\r
1210 return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
\r
1212 OCTET_STRING__handle_control_chars,
\r
1213 OCTET_STRING__convert_entrefs);
\r
1216 #ifndef ASN_DISABLE_PER_SUPPORT
\r
1219 OCTET_STRING_per_get_characters(asn_per_data_t *po, uint8_t *buf,
\r
1220 size_t units, unsigned int bpc, unsigned int unit_bits,
\r
1221 long lb, long ub, const asn_per_constraints_t *pc) {
\r
1222 uint8_t *end = buf + units * bpc;
\r
1224 ASN_DEBUG("Expanding %d characters into (%ld..%ld):%d",
\r
1225 (int)units, lb, ub, unit_bits);
\r
1227 /* X.691: 27.5.4 */
\r
1228 if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
\r
1229 /* Decode without translation */
\r
1231 } else if(pc && pc->code2value) {
\r
1232 if(unit_bits > 16)
\r
1233 return 1; /* FATAL: can't have constrained
\r
1234 * UniversalString with more than
\r
1235 * 16 million code points */
\r
1236 for(; buf < end; buf += bpc) {
\r
1238 int code = per_get_few_bits(po, unit_bits);
\r
1239 if(code < 0) return -1; /* WMORE */
\r
1240 value = pc->code2value(code);
\r
1242 ASN_DEBUG("Code %d (0x%02x) is"
\r
1243 " not in map (%ld..%ld)",
\r
1244 code, code, lb, ub);
\r
1245 return 1; /* FATAL */
\r
1248 case 1: *buf = value; break;
\r
1249 case 2: buf[0] = value >> 8; buf[1] = value; break;
\r
1250 case 4: buf[0] = value >> 24; buf[1] = value >> 16;
\r
1251 buf[2] = value >> 8; buf[3] = value; break;
\r
1257 /* Shortcut the no-op copying to the aligned structure */
\r
1258 if(lb == 0 && (unit_bits == 8 * bpc)) {
\r
1259 return per_get_many_bits(po, buf, 0, unit_bits * units);
\r
1262 for(; buf < end; buf += bpc) {
\r
1263 int32_t code = per_get_few_bits(po, unit_bits);
\r
1264 int32_t ch = code + lb;
\r
1265 if(code < 0) return -1; /* WMORE */
\r
1267 ASN_DEBUG("Code %d is out of range (%ld..%ld)",
\r
1269 return 1; /* FATAL */
\r
1272 case 1: *buf = ch; break;
\r
1273 case 2: buf[0] = ch >> 8; buf[1] = ch; break;
\r
1274 case 4: buf[0] = ch >> 24; buf[1] = ch >> 16;
\r
1275 buf[2] = ch >> 8; buf[3] = ch; break;
\r
1283 OCTET_STRING_per_put_characters(asn_per_outp_t *po, const uint8_t *buf,
\r
1284 size_t units, unsigned int bpc, unsigned int unit_bits,
\r
1285 long lb, long ub, const asn_per_constraints_t *pc) {
\r
1286 const uint8_t *end = buf + units * bpc;
\r
1288 ASN_DEBUG("Squeezing %d characters into (%ld..%ld):%d (%d bpc)",
\r
1289 (int)units, lb, ub, unit_bits, bpc);
\r
1291 /* X.691: 27.5.4 */
\r
1292 if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
\r
1293 /* Encode as is */
\r
1295 } else if(pc && pc->value2code) {
\r
1296 for(; buf < end; buf += bpc) {
\r
1300 case 1: value = *(const uint8_t *)buf; break;
\r
1301 case 2: value = (buf[0] << 8) | buf[1]; break;
\r
1302 case 4: value = (buf[0] << 24) | (buf[1] << 16)
\r
1303 | (buf[2] << 8) | buf[3]; break;
\r
1304 default: return -1;
\r
1306 code = pc->value2code(value);
\r
1308 ASN_DEBUG("Character %d (0x%02x) is"
\r
1309 " not in map (%ld..%ld)",
\r
1310 *buf, *buf, lb, ub);
\r
1313 if(per_put_few_bits(po, code, unit_bits))
\r
1318 /* Shortcut the no-op copying to the aligned structure */
\r
1319 if(lb == 0 && (unit_bits == 8 * bpc)) {
\r
1320 return per_put_many_bits(po, buf, unit_bits * units);
\r
1323 for(ub -= lb; buf < end; buf += bpc) {
\r
1328 value = *(const uint8_t *)buf;
\r
1331 value = (buf[0] << 8) | buf[1];
\r
1334 value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
\r
1340 if(ch < 0 || ch > ub) {
\r
1341 ASN_DEBUG("Character %d (0x%02x) is out of range (%ld..%ld)", *buf,
\r
1342 value, lb, ub + lb);
\r
1345 if(per_put_few_bits(po, ch, unit_bits)) return -1;
\r
1351 static asn_per_constraints_t asn_DEF_OCTET_STRING_constraints = {
\r
1352 { APC_CONSTRAINED, 8, 8, 0, 255 },
\r
1353 { APC_SEMI_CONSTRAINED, -1, -1, 0, 0 },
\r
1358 OCTET_STRING_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
\r
1359 const asn_TYPE_descriptor_t *td,
\r
1360 const asn_per_constraints_t *constraints, void **sptr,
\r
1361 asn_per_data_t *pd) {
\r
1362 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
1363 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
1364 : &asn_SPC_OCTET_STRING_specs;
\r
1365 const asn_per_constraints_t *pc =
\r
1366 constraints ? constraints : td->encoding_constraints.per_constraints;
\r
1367 const asn_per_constraint_t *cval;
\r
1368 const asn_per_constraint_t *csiz;
\r
1369 asn_dec_rval_t rval = { RC_OK, 0 };
\r
1370 OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
\r
1371 ssize_t consumed_myself = 0;
\r
1377 } bpc; /* Bytes per character */
\r
1378 unsigned int unit_bits;
\r
1379 unsigned int canonical_unit_bits;
\r
1381 (void)opt_codec_ctx;
\r
1384 cval = &pc->value;
\r
1387 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1388 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1391 switch(specs->subvariant) {
\r
1393 case ASN_OSUBV_ANY:
\r
1394 case ASN_OSUBV_BIT:
\r
1395 ASN_DEBUG("Unrecognized subvariant %d", specs->subvariant);
\r
1398 case ASN_OSUBV_STR:
\r
1399 canonical_unit_bits = unit_bits = 8;
\r
1400 if(cval->flags & APC_CONSTRAINED)
\r
1401 unit_bits = cval->range_bits;
\r
1402 bpc = OS__BPC_CHAR;
\r
1404 case ASN_OSUBV_U16:
\r
1405 canonical_unit_bits = unit_bits = 16;
\r
1406 if(cval->flags & APC_CONSTRAINED)
\r
1407 unit_bits = cval->range_bits;
\r
1408 bpc = OS__BPC_U16;
\r
1410 case ASN_OSUBV_U32:
\r
1411 canonical_unit_bits = unit_bits = 32;
\r
1412 if(cval->flags & APC_CONSTRAINED)
\r
1413 unit_bits = cval->range_bits;
\r
1414 bpc = OS__BPC_U32;
\r
1419 * Allocate the string.
\r
1422 st = (OCTET_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
\r
1423 if(!st) RETURN(RC_FAIL);
\r
1426 ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
\r
1427 csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
\r
1428 csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
\r
1430 if(csiz->flags & APC_EXTENSIBLE) {
\r
1431 int inext = per_get_few_bits(pd, 1);
\r
1432 if(inext < 0) RETURN(RC_WMORE);
\r
1434 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1435 unit_bits = canonical_unit_bits;
\r
1439 if(csiz->effective_bits >= 0) {
\r
1442 st->size = csiz->upper_bound * bpc;
\r
1444 st->size = (csiz->upper_bound + 7) >> 3;
\r
1446 st->buf = (uint8_t *)MALLOC(st->size + 1);
\r
1447 if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
\r
1450 /* X.691, #16.5: zero-length encoding */
\r
1451 /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
\r
1452 /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
\r
1453 if(csiz->effective_bits == 0) {
\r
1456 ASN_DEBUG("Encoding OCTET STRING size %ld",
\r
1457 csiz->upper_bound);
\r
1458 ret = OCTET_STRING_per_get_characters(pd, st->buf,
\r
1459 csiz->upper_bound, bpc, unit_bits,
\r
1460 cval->lower_bound, cval->upper_bound, pc);
\r
1461 if(ret > 0) RETURN(RC_FAIL);
\r
1463 ASN_DEBUG("Encoding BIT STRING size %ld",
\r
1464 csiz->upper_bound);
\r
1465 ret = per_get_many_bits(pd, st->buf, 0,
\r
1466 unit_bits * csiz->upper_bound);
\r
1468 if(ret < 0) RETURN(RC_WMORE);
\r
1469 consumed_myself += unit_bits * csiz->upper_bound;
\r
1470 st->buf[st->size] = 0;
\r
1477 ssize_t len_bytes;
\r
1481 /* Get the PER length */
\r
1482 raw_len = uper_get_length(pd, csiz->effective_bits, csiz->lower_bound,
\r
1484 if(raw_len < 0) RETURN(RC_WMORE);
\r
1485 if(raw_len == 0 && st->buf) break;
\r
1487 ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
\r
1488 (long)csiz->effective_bits, (long)raw_len,
\r
1489 repeat ? "repeat" : "once", td->name);
\r
1490 len_bytes = raw_len * bpc;
\r
1491 p = REALLOC(st->buf, st->size + len_bytes + 1);
\r
1492 if(!p) RETURN(RC_FAIL);
\r
1493 st->buf = (uint8_t *)p;
\r
1495 ret = OCTET_STRING_per_get_characters(pd, &st->buf[st->size], raw_len,
\r
1496 bpc, unit_bits, cval->lower_bound,
\r
1497 cval->upper_bound, pc);
\r
1498 if(ret > 0) RETURN(RC_FAIL);
\r
1499 if(ret < 0) RETURN(RC_WMORE);
\r
1500 st->size += len_bytes;
\r
1502 st->buf[st->size] = 0; /* nul-terminate */
\r
1508 OCTET_STRING_encode_uper(const asn_TYPE_descriptor_t *td,
\r
1509 const asn_per_constraints_t *constraints,
\r
1510 const void *sptr, asn_per_outp_t *po) {
\r
1511 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
1512 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
1513 : &asn_SPC_OCTET_STRING_specs;
\r
1514 const asn_per_constraints_t *pc = constraints ? constraints
\r
1515 : td->encoding_constraints.per_constraints;
\r
1516 const asn_per_constraint_t *cval;
\r
1517 const asn_per_constraint_t *csiz;
\r
1518 const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
\r
1519 asn_enc_rval_t er = { 0, 0, 0 };
\r
1520 int inext = 0; /* Lies not within extension root */
\r
1521 unsigned int unit_bits;
\r
1522 unsigned int canonical_unit_bits;
\r
1523 size_t size_in_units;
\r
1524 const uint8_t *buf;
\r
1530 } bpc; /* Bytes per character */
\r
1531 int ct_extensible;
\r
1533 if(!st || (!st->buf && st->size))
\r
1534 ASN__ENCODE_FAILED;
\r
1537 cval = &pc->value;
\r
1540 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1541 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1543 ct_extensible = csiz->flags & APC_EXTENSIBLE;
\r
1545 switch(specs->subvariant) {
\r
1547 case ASN_OSUBV_ANY:
\r
1548 case ASN_OSUBV_BIT:
\r
1549 ASN__ENCODE_FAILED;
\r
1550 case ASN_OSUBV_STR:
\r
1551 canonical_unit_bits = unit_bits = 8;
\r
1552 if(cval->flags & APC_CONSTRAINED)
\r
1553 unit_bits = cval->range_bits;
\r
1554 bpc = OS__BPC_CHAR;
\r
1555 size_in_units = st->size;
\r
1557 case ASN_OSUBV_U16:
\r
1558 canonical_unit_bits = unit_bits = 16;
\r
1559 if(cval->flags & APC_CONSTRAINED)
\r
1560 unit_bits = cval->range_bits;
\r
1561 bpc = OS__BPC_U16;
\r
1562 size_in_units = st->size >> 1;
\r
1563 if(st->size & 1) {
\r
1564 ASN_DEBUG("%s string size is not modulo 2", td->name);
\r
1565 ASN__ENCODE_FAILED;
\r
1568 case ASN_OSUBV_U32:
\r
1569 canonical_unit_bits = unit_bits = 32;
\r
1570 if(cval->flags & APC_CONSTRAINED)
\r
1571 unit_bits = cval->range_bits;
\r
1572 bpc = OS__BPC_U32;
\r
1573 size_in_units = st->size >> 2;
\r
1574 if(st->size & 3) {
\r
1575 ASN_DEBUG("%s string size is not modulo 4", td->name);
\r
1576 ASN__ENCODE_FAILED;
\r
1581 ASN_DEBUG("Encoding %s into %" ASN_PRI_SIZE " units of %d bits"
\r
1582 " (%ld..%ld, effective %d)%s",
\r
1583 td->name, size_in_units, unit_bits,
\r
1584 csiz->lower_bound, csiz->upper_bound,
\r
1585 csiz->effective_bits, ct_extensible ? " EXT" : "");
\r
1587 /* Figure out whether size lies within PER visible constraint */
\r
1589 if(csiz->effective_bits >= 0) {
\r
1590 if((ssize_t)size_in_units < csiz->lower_bound
\r
1591 || (ssize_t)size_in_units > csiz->upper_bound) {
\r
1592 if(ct_extensible) {
\r
1593 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1594 unit_bits = canonical_unit_bits;
\r
1597 ASN__ENCODE_FAILED;
\r
1604 if(ct_extensible) {
\r
1605 /* Declare whether length is [not] within extension root */
\r
1606 if(per_put_few_bits(po, inext, 1))
\r
1607 ASN__ENCODE_FAILED;
\r
1610 if(csiz->effective_bits >= 0 && !inext) {
\r
1611 ASN_DEBUG("Encoding %" ASN_PRI_SIZE " bytes (%ld), length in %d bits", st->size,
\r
1612 size_in_units - csiz->lower_bound, csiz->effective_bits);
\r
1613 ret = per_put_few_bits(po, size_in_units - csiz->lower_bound,
\r
1614 csiz->effective_bits);
\r
1615 if(ret) ASN__ENCODE_FAILED;
\r
1616 ret = OCTET_STRING_per_put_characters(po, st->buf, size_in_units, bpc,
\r
1617 unit_bits, cval->lower_bound,
\r
1618 cval->upper_bound, pc);
\r
1619 if(ret) ASN__ENCODE_FAILED;
\r
1620 ASN__ENCODED_OK(er);
\r
1623 ASN_DEBUG("Encoding %" ASN_PRI_SIZE " bytes", st->size);
\r
1626 ASN_DEBUG("Encoding %" ASN_PRI_SIZE " in units", size_in_units);
\r
1629 ssize_t may_save = uper_put_length(po, size_in_units, &need_eom);
\r
1630 if(may_save < 0) ASN__ENCODE_FAILED;
\r
1632 ASN_DEBUG("Encoding %" ASN_PRI_SSIZE " of %" ASN_PRI_SIZE "%s", may_save, size_in_units,
\r
1633 need_eom ? ",+EOM" : "");
\r
1635 ret = OCTET_STRING_per_put_characters(po, buf, may_save, bpc, unit_bits,
\r
1636 cval->lower_bound,
\r
1637 cval->upper_bound, pc);
\r
1638 if(ret) ASN__ENCODE_FAILED;
\r
1640 buf += may_save * bpc;
\r
1641 size_in_units -= may_save;
\r
1642 assert(!(may_save & 0x07) || !size_in_units);
\r
1643 if(need_eom && uper_put_length(po, 0, 0))
\r
1644 ASN__ENCODE_FAILED; /* End of Message length */
\r
1645 } while(size_in_units);
\r
1647 ASN__ENCODED_OK(er);
\r
1651 OCTET_STRING_decode_aper(const asn_codec_ctx_t *opt_codec_ctx,
\r
1652 const asn_TYPE_descriptor_t *td,
\r
1653 const asn_per_constraints_t *constraints,
\r
1654 void **sptr, asn_per_data_t *pd) {
\r
1656 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
1657 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
1658 : &asn_SPC_OCTET_STRING_specs;
\r
1659 const asn_per_constraints_t *pc = constraints ? constraints
\r
1660 : td->encoding_constraints.per_constraints;
\r
1661 const asn_per_constraint_t *cval;
\r
1662 const asn_per_constraint_t *csiz;
\r
1663 asn_dec_rval_t rval = { RC_OK, 0 };
\r
1664 BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
\r
1665 ssize_t consumed_myself = 0;
\r
1672 } bpc; /* Bytes per character */
\r
1673 unsigned int unit_bits;
\r
1674 unsigned int canonical_unit_bits;
\r
1676 (void)opt_codec_ctx;
\r
1679 cval = &pc->value;
\r
1682 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1683 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1686 switch(specs->subvariant) {
\r
1688 /* case ASN_OSUBV_ANY:
\r
1689 ASN_DEBUG("Unrecognized subvariant %d", specs->subvariant);
\r
1692 case ASN_OSUBV_BIT:
\r
1693 canonical_unit_bits = unit_bits = 1;
\r
1694 bpc = OS__BPC_BIT;
\r
1696 case ASN_OSUBV_ANY:
\r
1697 case ASN_OSUBV_STR:
\r
1698 canonical_unit_bits = unit_bits = 8;
\r
1699 /* if(cval->flags & APC_CONSTRAINED)
\r
1700 unit_bits = cval->range_bits;
\r
1702 bpc = OS__BPC_CHAR;
\r
1704 case ASN_OSUBV_U16:
\r
1705 canonical_unit_bits = unit_bits = 16;
\r
1706 if(cval->flags & APC_CONSTRAINED)
\r
1707 unit_bits = cval->range_bits;
\r
1708 bpc = OS__BPC_U16;
\r
1710 case ASN_OSUBV_U32:
\r
1711 canonical_unit_bits = unit_bits = 32;
\r
1712 if(cval->flags & APC_CONSTRAINED)
\r
1713 unit_bits = cval->range_bits;
\r
1714 bpc = OS__BPC_U32;
\r
1719 * Allocate the string.
\r
1722 st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
\r
1723 if(!st) RETURN(RC_FAIL);
\r
1726 ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
\r
1727 csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
\r
1728 csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
\r
1730 if(csiz->flags & APC_EXTENSIBLE) {
\r
1731 int inext = per_get_few_bits(pd, 1);
\r
1732 if(inext < 0) RETURN(RC_WMORE);
\r
1734 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1735 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1736 unit_bits = canonical_unit_bits;
\r
1740 if(csiz->effective_bits >= 0) {
\r
1743 st->size = csiz->upper_bound * bpc;
\r
1745 st->size = (csiz->upper_bound + 7) >> 3;
\r
1747 st->buf = (uint8_t *)MALLOC(st->size + 1);
\r
1748 if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
\r
1751 /* X.691, #16.5: zero-length encoding */
\r
1752 /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
\r
1753 /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
\r
1754 if(csiz->effective_bits == 0) {
\r
1756 if (st->size > 2) { /* X.691 #16 NOTE 1 */
\r
1757 if (aper_get_align(pd) < 0)
\r
1761 ASN_DEBUG("Decoding OCTET STRING size %ld",
\r
1762 csiz->upper_bound);
\r
1763 ret = OCTET_STRING_per_get_characters(pd, st->buf,
\r
1764 csiz->upper_bound, bpc, unit_bits,
\r
1765 cval->lower_bound, cval->upper_bound, pc);
\r
1766 if(ret > 0) RETURN(RC_FAIL);
\r
1768 ASN_DEBUG("Decoding BIT STRING size %ld",
\r
1769 csiz->upper_bound);
\r
1770 ret = per_get_many_bits(pd, st->buf, 0,
\r
1771 unit_bits * csiz->upper_bound);
\r
1773 if(ret < 0) RETURN(RC_WMORE);
\r
1774 consumed_myself += unit_bits * csiz->upper_bound;
\r
1775 st->buf[st->size] = 0;
\r
1777 int ubs = (csiz->upper_bound & 0x7);
\r
1778 st->bits_unused = ubs ? 8 - ubs : 0;
\r
1786 ssize_t len_bytes;
\r
1791 /* Get the PER length */
\r
1792 if (csiz->upper_bound - csiz->lower_bound == 0)
\r
1793 /* Indefinite length case */
\r
1794 raw_len = aper_get_length(pd, -1, csiz->effective_bits, &repeat);
\r
1796 raw_len = aper_get_length(pd, csiz->upper_bound - csiz->lower_bound + 1, csiz->effective_bits, &repeat);
\r
1798 if(raw_len < 0) RETURN(RC_WMORE);
\r
1799 raw_len += csiz->lower_bound;
\r
1801 ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
\r
1802 (long)csiz->effective_bits, (long)raw_len,
\r
1803 repeat ? "repeat" : "once", td->name);
\r
1805 if (raw_len > 2) { /* X.691 #16 NOTE 1 */
\r
1806 if (aper_get_align(pd) < 0)
\r
1811 len_bytes = raw_len * bpc;
\r
1812 len_bits = len_bytes * unit_bits;
\r
1814 len_bits = raw_len;
\r
1815 len_bytes = (len_bits + 7) >> 3;
\r
1816 if(len_bits & 0x7)
\r
1817 st->bits_unused = 8 - (len_bits & 0x7);
\r
1818 /* len_bits be multiple of 16K if repeat is set */
\r
1820 p = REALLOC(st->buf, st->size + len_bytes + 1);
\r
1821 if(!p) RETURN(RC_FAIL);
\r
1822 st->buf = (uint8_t *)p;
\r
1825 ret = OCTET_STRING_per_get_characters(pd,
\r
1826 &st->buf[st->size], raw_len, bpc, unit_bits,
\r
1827 cval->lower_bound, cval->upper_bound, pc);
\r
1828 if(ret > 0) RETURN(RC_FAIL);
\r
1830 ret = per_get_many_bits(pd, &st->buf[st->size],
\r
1833 if(ret < 0) RETURN(RC_WMORE);
\r
1834 st->size += len_bytes;
\r
1836 st->buf[st->size] = 0; /* nul-terminate */
\r
1842 OCTET_STRING_encode_aper(const asn_TYPE_descriptor_t *td,
\r
1843 const asn_per_constraints_t *constraints,
\r
1844 const void *sptr, asn_per_outp_t *po) {
\r
1846 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
1847 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
1848 : &asn_SPC_OCTET_STRING_specs;
\r
1849 const asn_per_constraints_t *pc = constraints ? constraints
\r
1850 : td->encoding_constraints.per_constraints;
\r
1851 const asn_per_constraint_t *cval;
\r
1852 const asn_per_constraint_t *csiz;
\r
1853 const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
\r
1854 asn_enc_rval_t er = { 0, 0, 0 };
\r
1855 int inext = 0; /* Lies not within extension root */
\r
1856 unsigned int unit_bits;
\r
1857 unsigned int canonical_unit_bits;
\r
1858 unsigned int sizeinunits;
\r
1859 const uint8_t *buf;
\r
1866 } bpc; /* Bytes per character */
\r
1867 int ct_extensible;
\r
1869 if(!st || (!st->buf && st->size))
\r
1870 ASN__ENCODE_FAILED;
\r
1873 cval = &pc->value;
\r
1876 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1877 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1879 ct_extensible = csiz->flags & APC_EXTENSIBLE;
\r
1881 switch(specs->subvariant) {
\r
1883 /* case ASN_OSUBV_ANY:
\r
1884 ASN__ENCODE_FAILED;
\r
1886 case ASN_OSUBV_BIT:
\r
1887 canonical_unit_bits = unit_bits = 1;
\r
1888 bpc = OS__BPC_BIT;
\r
1889 sizeinunits = st->size * 8 - (st->bits_unused & 0x07);
\r
1890 ASN_DEBUG("BIT STRING of %d bytes",
\r
1893 case ASN_OSUBV_ANY:
\r
1894 case ASN_OSUBV_STR:
\r
1895 canonical_unit_bits = unit_bits = 8;
\r
1896 /* if(cval->flags & APC_CONSTRAINED)
\r
1899 bpc = OS__BPC_CHAR;
\r
1900 sizeinunits = st->size;
\r
1902 case ASN_OSUBV_U16:
\r
1903 canonical_unit_bits = unit_bits = 16;
\r
1904 if(cval->flags & APC_CONSTRAINED)
\r
1905 unit_bits = cval->range_bits;
\r
1906 bpc = OS__BPC_U16;
\r
1907 sizeinunits = st->size / 2;
\r
1909 case ASN_OSUBV_U32:
\r
1910 canonical_unit_bits = unit_bits = 32;
\r
1911 if(cval->flags & APC_CONSTRAINED)
\r
1912 unit_bits = cval->range_bits;
\r
1913 bpc = OS__BPC_U32;
\r
1914 sizeinunits = st->size / 4;
\r
1918 ASN_DEBUG("Encoding %s into %d units of %d bits"
\r
1919 " (%ld..%ld, effective %d)%s",
\r
1920 td->name, sizeinunits, unit_bits,
\r
1921 csiz->lower_bound, csiz->upper_bound,
\r
1922 csiz->effective_bits, ct_extensible ? " EXT" : "");
\r
1924 /* Figure out wheter size lies within PER visible constraint */
\r
1926 if(csiz->effective_bits >= 0) {
\r
1927 if((int)sizeinunits < csiz->lower_bound
\r
1928 || (int)sizeinunits > csiz->upper_bound) {
\r
1929 if(ct_extensible) {
\r
1930 cval = &asn_DEF_OCTET_STRING_constraints.value;
\r
1931 csiz = &asn_DEF_OCTET_STRING_constraints.size;
\r
1932 unit_bits = canonical_unit_bits;
\r
1935 ASN__ENCODE_FAILED;
\r
1942 if(ct_extensible) {
\r
1943 /* Declare whether length is [not] within extension root */
\r
1944 if(per_put_few_bits(po, inext, 1))
\r
1945 ASN__ENCODE_FAILED;
\r
1948 /* X.691, #16.5: zero-length encoding */
\r
1949 /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
\r
1950 /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
\r
1951 if(csiz->effective_bits >= 0) {
\r
1952 ASN_DEBUG("Encoding %lu bytes (%ld), length in %d bits",
\r
1953 st->size, sizeinunits - csiz->lower_bound,
\r
1954 csiz->effective_bits);
\r
1955 if (csiz->effective_bits > 0) {
\r
1956 ret = aper_put_length(po, csiz->upper_bound - csiz->lower_bound + 1, sizeinunits - csiz->lower_bound);
\r
1957 if(ret) ASN__ENCODE_FAILED;
\r
1959 if (st->size > 2) { /* X.691 #16 NOTE 1 */
\r
1960 if (aper_put_align(po) < 0)
\r
1961 ASN__ENCODE_FAILED;
\r
1964 ret = OCTET_STRING_per_put_characters(po, st->buf,
\r
1965 sizeinunits, bpc, unit_bits,
\r
1966 cval->lower_bound, cval->upper_bound, pc);
\r
1968 ret = per_put_many_bits(po, st->buf,
\r
1969 sizeinunits * unit_bits);
\r
1971 if(ret) ASN__ENCODE_FAILED;
\r
1972 ASN__ENCODED_OK(er);
\r
1975 ASN_DEBUG("Encoding %lu bytes", st->size);
\r
1977 if(sizeinunits == 0) {
\r
1978 if(aper_put_length(po, -1, 0))
\r
1979 ASN__ENCODE_FAILED;
\r
1980 ASN__ENCODED_OK(er);
\r
1984 while(sizeinunits) {
\r
1985 ssize_t maySave = aper_put_length(po, -1, sizeinunits);
\r
1987 if(maySave < 0) ASN__ENCODE_FAILED;
\r
1989 ASN_DEBUG("Encoding %ld of %ld",
\r
1990 (long)maySave, (long)sizeinunits);
\r
1993 ret = OCTET_STRING_per_put_characters(po, buf,
\r
1994 maySave, bpc, unit_bits,
\r
1995 cval->lower_bound, cval->upper_bound, pc);
\r
1997 ret = per_put_many_bits(po, buf, maySave * unit_bits);
\r
1999 if(ret) ASN__ENCODE_FAILED;
\r
2002 buf += maySave * bpc;
\r
2004 buf += maySave >> 3;
\r
2005 sizeinunits -= maySave;
\r
2006 assert(!(maySave & 0x07) || !sizeinunits);
\r
2009 ASN__ENCODED_OK(er);
\r
2012 #endif /* ASN_DISABLE_PER_SUPPORT */
\r
2015 OCTET_STRING_print(const asn_TYPE_descriptor_t *td, const void *sptr,
\r
2016 int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
\r
2017 const char * const h2c = "0123456789ABCDEF";
\r
2018 const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
\r
2019 char scratch[16 * 3 + 4];
\r
2020 char *p = scratch;
\r
2025 (void)td; /* Unused argument */
\r
2027 if(!st || (!st->buf && st->size))
\r
2028 return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
\r
2031 * Dump the contents of the buffer in hexadecimal.
\r
2034 end = buf + st->size;
\r
2035 for(i = 0; buf < end; buf++, i++) {
\r
2036 if(!(i % 16) && (i || st->size > 16)) {
\r
2037 if(cb(scratch, p - scratch, app_key) < 0)
\r
2042 *p++ = h2c[(*buf >> 4) & 0x0F];
\r
2043 *p++ = h2c[*buf & 0x0F];
\r
2048 p--; /* Remove the tail space */
\r
2049 if(cb(scratch, p - scratch, app_key) < 0)
\r
2057 OCTET_STRING_print_utf8(const asn_TYPE_descriptor_t *td, const void *sptr,
\r
2058 int ilevel, asn_app_consume_bytes_f *cb,
\r
2060 const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
\r
2062 (void)td; /* Unused argument */
\r
2063 (void)ilevel; /* Unused argument */
\r
2065 if(st && (st->buf || !st->size)) {
\r
2066 return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
\r
2068 return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
\r
2073 OCTET_STRING_free(const asn_TYPE_descriptor_t *td, void *sptr,
\r
2074 enum asn_struct_free_method method) {
\r
2075 OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
\r
2076 const asn_OCTET_STRING_specifics_t *specs;
\r
2077 asn_struct_ctx_t *ctx;
\r
2078 struct _stack *stck;
\r
2083 specs = td->specifics
\r
2084 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
2085 : &asn_SPC_OCTET_STRING_specs;
\r
2086 ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
\r
2088 ASN_DEBUG("Freeing %s as OCTET STRING", td->name);
\r
2096 * Remove decode-time stack.
\r
2098 stck = (struct _stack *)ctx->ptr;
\r
2100 while(stck->tail) {
\r
2101 struct _stack_el *sel = stck->tail;
\r
2102 stck->tail = sel->prev;
\r
2109 case ASFM_FREE_EVERYTHING:
\r
2112 case ASFM_FREE_UNDERLYING:
\r
2114 case ASFM_FREE_UNDERLYING_AND_RESET:
\r
2117 ? ((const asn_OCTET_STRING_specifics_t *)(td->specifics))
\r
2119 : sizeof(OCTET_STRING_t));
\r
2125 * Conversion routines.
\r
2128 OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) {
\r
2131 if(st == 0 || (str == 0 && len)) {
\r
2137 * Clear the OCTET STRING.
\r
2146 /* Determine the original string size, if not explicitly given */
\r
2148 len = strlen(str);
\r
2150 /* Allocate and fill the memory */
\r
2151 buf = MALLOC(len + 1);
\r
2155 memcpy(buf, str, len);
\r
2156 ((uint8_t *)buf)[len] = '\0'; /* Couldn't use memcpy(len+1)! */
\r
2158 st->buf = (uint8_t *)buf;
\r
2165 OCTET_STRING_new_fromBuf(const asn_TYPE_descriptor_t *td, const char *str,
\r
2167 const asn_OCTET_STRING_specifics_t *specs =
\r
2168 td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
2169 : &asn_SPC_OCTET_STRING_specs;
\r
2170 OCTET_STRING_t *st;
\r
2172 st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
\r
2173 if(st && str && OCTET_STRING_fromBuf(st, str, len)) {
\r
2182 * Lexicographically compare the common prefix of both strings,
\r
2183 * and if it is the same return -1 for the smallest string.
\r
2186 OCTET_STRING_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
\r
2187 const void *bptr) {
\r
2188 const asn_OCTET_STRING_specifics_t *specs = td->specifics;
\r
2189 const OCTET_STRING_t *a = aptr;
\r
2190 const OCTET_STRING_t *b = bptr;
\r
2192 assert(!specs || specs->subvariant != ASN_OSUBV_BIT);
\r
2195 size_t common_prefix_size = a->size <= b->size ? a->size : b->size;
\r
2196 int ret = memcmp(a->buf, b->buf, common_prefix_size);
\r
2198 /* Figure out which string with equal prefixes is longer. */
\r
2199 if(a->size < b->size) {
\r
2201 } else if(a->size > b->size) {
\r
2207 return ret < 0 ? -1 : 1;
\r
2209 } else if(!a && !b) {
\r
2220 * Biased function for randomizing character values around their limits.
\r
2223 OCTET_STRING__random_char(unsigned long lb, unsigned long ub) {
\r
2225 switch(asn_random_between(0, 16)) {
\r
2227 if(lb < ub) return lb + 1;
\r
2228 /* Fall through */
\r
2232 if(lb < ub) return ub - 1;
\r
2233 /* Fall through */
\r
2237 return asn_random_between(lb, ub);
\r
2243 OCTET_STRING_random_length_constrained(
\r
2244 const asn_TYPE_descriptor_t *td,
\r
2245 const asn_encoding_constraints_t *constraints, size_t max_length) {
\r
2246 const unsigned lengths[] = {0, 1, 2, 3, 4, 8,
\r
2247 126, 127, 128, 16383, 16384, 16385,
\r
2248 65534, 65535, 65536, 65537};
\r
2251 /* Figure out how far we should go */
\r
2252 rnd_len = lengths[asn_random_between(
\r
2253 0, sizeof(lengths) / sizeof(lengths[0]) - 1)];
\r
2255 if(!constraints || !constraints->per_constraints)
\r
2256 constraints = &td->encoding_constraints;
\r
2257 if(constraints->per_constraints) {
\r
2258 const asn_per_constraint_t *pc = &constraints->per_constraints->size;
\r
2259 if(pc->flags & APC_CONSTRAINED) {
\r
2260 long suggested_upper_bound = pc->upper_bound < (ssize_t)max_length
\r
2262 : (ssize_t)max_length;
\r
2263 if(max_length <= (size_t)pc->lower_bound) {
\r
2264 return pc->lower_bound;
\r
2266 if(pc->flags & APC_EXTENSIBLE) {
\r
2267 switch(asn_random_between(0, 5)) {
\r
2269 if(pc->lower_bound > 0) {
\r
2270 rnd_len = pc->lower_bound - 1;
\r
2273 /* Fall through */
\r
2275 rnd_len = pc->upper_bound + 1;
\r
2278 /* Keep rnd_len from the table */
\r
2279 if(rnd_len <= max_length) {
\r
2282 /* Fall through */
\r
2284 rnd_len = asn_random_between(pc->lower_bound,
\r
2285 suggested_upper_bound);
\r
2289 asn_random_between(pc->lower_bound, suggested_upper_bound);
\r
2292 rnd_len = asn_random_between(0, max_length);
\r
2294 } else if(rnd_len > max_length) {
\r
2295 rnd_len = asn_random_between(0, max_length);
\r
2301 asn_random_fill_result_t
\r
2302 OCTET_STRING_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
\r
2303 const asn_encoding_constraints_t *constraints,
\r
2304 size_t max_length) {
\r
2305 const asn_OCTET_STRING_specifics_t *specs = td->specifics
\r
2306 ? (const asn_OCTET_STRING_specifics_t *)td->specifics
\r
2307 : &asn_SPC_OCTET_STRING_specs;
\r
2308 asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
\r
2309 asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
\r
2310 asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
\r
2311 unsigned int unit_bytes = 1;
\r
2312 unsigned long clb = 0; /* Lower bound on char */
\r
2313 unsigned long cub = 255; /* Higher bound on char value */
\r
2318 OCTET_STRING_t *st;
\r
2320 if(max_length == 0 && !*sptr) return result_skipped;
\r
2322 switch(specs->subvariant) {
\r
2324 case ASN_OSUBV_ANY:
\r
2325 return result_failed;
\r
2326 case ASN_OSUBV_BIT:
\r
2327 /* Handled by BIT_STRING itself. */
\r
2328 return result_failed;
\r
2329 case ASN_OSUBV_STR:
\r
2334 case ASN_OSUBV_U16:
\r
2339 case ASN_OSUBV_U32:
\r
2346 if(!constraints || !constraints->per_constraints)
\r
2347 constraints = &td->encoding_constraints;
\r
2348 if(constraints->per_constraints) {
\r
2349 const asn_per_constraint_t *pc = &constraints->per_constraints->value;
\r
2350 if(pc->flags & APC_SEMI_CONSTRAINED) {
\r
2351 clb = pc->lower_bound;
\r
2352 } else if(pc->flags & APC_CONSTRAINED) {
\r
2353 clb = pc->lower_bound;
\r
2354 cub = pc->upper_bound;
\r
2359 OCTET_STRING_random_length_constrained(td, constraints, max_length);
\r
2361 buf = CALLOC(unit_bytes, rnd_len + 1);
\r
2362 if(!buf) return result_failed;
\r
2364 bend = &buf[unit_bytes * rnd_len];
\r
2366 switch(unit_bytes) {
\r
2368 for(b = buf; b < bend; b += unit_bytes) {
\r
2369 *(uint8_t *)b = OCTET_STRING__random_char(clb, cub);
\r
2371 *(uint8_t *)b = 0;
\r
2374 for(b = buf; b < bend; b += unit_bytes) {
\r
2375 uint32_t code = OCTET_STRING__random_char(clb, cub);
\r
2379 *(uint16_t *)b = 0;
\r
2382 for(b = buf; b < bend; b += unit_bytes) {
\r
2383 uint32_t code = OCTET_STRING__random_char(clb, cub);
\r
2384 b[0] = code >> 24;
\r
2385 b[1] = code >> 16;
\r
2389 *(uint32_t *)b = 0;
\r
2397 st = (OCTET_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
\r
2400 return result_failed;
\r
2405 st->size = unit_bytes * rnd_len;
\r
2407 result_ok.length = st->size;
\r