-/*-
- * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.
- * All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-#include <asn_internal.h>
-#include <OCTET_STRING.h>
-#include <BIT_STRING.h> /* for .bits_unused member */
-#include <errno.h>
-
-/*
- * OCTET STRING basic type description.
- */
-static const ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
- (ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
-};
-asn_OCTET_STRING_specifics_t asn_SPC_OCTET_STRING_specs = {
- sizeof(OCTET_STRING_t),
- offsetof(OCTET_STRING_t, _asn_ctx),
- ASN_OSUBV_STR
-};
-
-asn_TYPE_operation_t asn_OP_OCTET_STRING = {
- OCTET_STRING_free,
- OCTET_STRING_print, /* OCTET STRING generally means a non-ascii sequence */
- OCTET_STRING_compare,
- OCTET_STRING_decode_ber,
- OCTET_STRING_encode_der,
- OCTET_STRING_decode_xer_hex,
- OCTET_STRING_encode_xer,
-#ifdef ASN_DISABLE_OER_SUPPORT
- 0,
- 0,
-#else
- OCTET_STRING_decode_oer,
- OCTET_STRING_encode_oer,
-#endif /* ASN_DISABLE_OER_SUPPORT */
-#ifdef ASN_DISABLE_PER_SUPPORT
- 0,
- 0,
- 0,
- 0,
-#else
- OCTET_STRING_decode_uper, /* Unaligned PER decoder */
- OCTET_STRING_encode_uper, /* Unaligned PER encoder */
- OCTET_STRING_decode_aper, /* Aligned PER decoder */
- OCTET_STRING_encode_aper, /* Aligned PER encoder */
-#endif /* ASN_DISABLE_PER_SUPPORT */
- OCTET_STRING_random_fill,
- 0 /* Use generic outmost tag fetcher */
-};
-asn_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
- "OCTET STRING", /* Canonical name */
- "OCTET_STRING", /* XML tag name */
- &asn_OP_OCTET_STRING,
- asn_DEF_OCTET_STRING_tags,
- sizeof(asn_DEF_OCTET_STRING_tags)
- / sizeof(asn_DEF_OCTET_STRING_tags[0]),
- asn_DEF_OCTET_STRING_tags, /* Same as above */
- sizeof(asn_DEF_OCTET_STRING_tags)
- / sizeof(asn_DEF_OCTET_STRING_tags[0]),
- { 0, 0, asn_generic_no_constraint },
- 0, 0, /* No members */
- &asn_SPC_OCTET_STRING_specs
-};
-
-#undef _CH_PHASE
-#undef NEXT_PHASE
-#undef PREV_PHASE
-#define _CH_PHASE(ctx, inc) do { \
- if(ctx->phase == 0) \
- ctx->context = 0; \
- ctx->phase += inc; \
- } while(0)
-#define NEXT_PHASE(ctx) _CH_PHASE(ctx, +1)
-#define PREV_PHASE(ctx) _CH_PHASE(ctx, -1)
-
-#undef ADVANCE
-#define ADVANCE(num_bytes) do { \
- size_t num = (num_bytes); \
- buf_ptr = ((const char *)buf_ptr) + num; \
- size -= num; \
- consumed_myself += num; \
- } while(0)
-
-#undef RETURN
-#define RETURN(_code) do { \
- asn_dec_rval_t tmprval; \
- tmprval.code = _code; \
- tmprval.consumed = consumed_myself; \
- return tmprval; \
- } while(0)
-
-#undef APPEND
-#define APPEND(bufptr, bufsize) do { \
- size_t _bs = (bufsize); /* Append size */ \
- size_t _ns = ctx->context; /* Allocated now */ \
- size_t _es = st->size + _bs; /* Expected size */ \
- /* int is really a typeof(st->size): */ \
- if((int)_es < 0) RETURN(RC_FAIL); \
- if(_ns <= _es) { \
- void *ptr; \
- /* Be nice and round to the memory allocator */ \
- do { _ns = _ns ? _ns << 1 : 16; } \
- while(_ns <= _es); \
- /* int is really a typeof(st->size): */ \
- if((int)_ns < 0) RETURN(RC_FAIL); \
- ptr = REALLOC(st->buf, _ns); \
- if(ptr) { \
- st->buf = (uint8_t *)ptr; \
- ctx->context = _ns; \
- } else { \
- RETURN(RC_FAIL); \
- } \
- ASN_DEBUG("Reallocating into %ld", (long)_ns); \
- } \
- memcpy(st->buf + st->size, bufptr, _bs); \
- /* Convenient nul-termination */ \
- st->buf[_es] = '\0'; \
- st->size = _es; \
- } while(0)
-
-/*
- * The main reason why ASN.1 is still alive is that too much time and effort
- * is necessary for learning it more or less adequately, thus creating a gut
- * necessity to demonstrate that aquired skill everywhere afterwards.
- * No, I am not going to explain what the following stuff is.
- */
-struct _stack_el {
- ber_tlv_len_t left; /* What's left to read (or -1) */
- ber_tlv_len_t got; /* What was actually processed */
- unsigned cont_level; /* Depth of subcontainment */
- int want_nulls; /* Want null "end of content" octets? */
- int bits_chopped; /* Flag in BIT STRING mode */
- ber_tlv_tag_t tag; /* For debugging purposes */
- struct _stack_el *prev;
- struct _stack_el *next;
-};
-struct _stack {
- struct _stack_el *tail;
- struct _stack_el *cur_ptr;
-};
-
-static struct _stack_el *
-OS__add_stack_el(struct _stack *st) {
- struct _stack_el *nel;
-
- /*
- * Reuse the old stack frame or allocate a new one.
- */
- if(st->cur_ptr && st->cur_ptr->next) {
- nel = st->cur_ptr->next;
- nel->bits_chopped = 0;
- nel->got = 0;
- /* Retain the nel->cont_level, it's correct. */
- } else {
- nel = (struct _stack_el *)CALLOC(1, sizeof(struct _stack_el));
- if(nel == NULL)
- return NULL;
-
- if(st->tail) {
- /* Increase a subcontainment depth */
- nel->cont_level = st->tail->cont_level + 1;
- st->tail->next = nel;
- }
- nel->prev = st->tail;
- st->tail = nel;
- }
-
- st->cur_ptr = nel;
-
- return nel;
-}
-
-static struct _stack *
-_new_stack(void) {
- return (struct _stack *)CALLOC(1, sizeof(struct _stack));
-}
-
-/*
- * Decode OCTET STRING type.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **sptr,
- const void *buf_ptr, size_t size, int tag_mode) {
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
- asn_dec_rval_t rval;
- asn_struct_ctx_t *ctx;
- ssize_t consumed_myself = 0;
- struct _stack *stck; /* Expectations stack structure */
- struct _stack_el *sel = 0; /* Stack element */
- int tlv_constr;
- enum asn_OS_Subvariant type_variant = specs->subvariant;
-
- ASN_DEBUG("Decoding %s as %s (frame %ld)",
- td->name,
- (type_variant == ASN_OSUBV_STR) ?
- "OCTET STRING" : "OS-SpecialCase",
- (long)size);
-
- /*
- * Create the string if does not exist.
- */
- if(st == NULL) {
- st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(st == NULL) RETURN(RC_FAIL);
- }
-
- /* Restore parsing context */
- ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
-
- switch(ctx->phase) {
- case 0:
- /*
- * Check tags.
- */
- rval = ber_check_tags(opt_codec_ctx, td, ctx,
- buf_ptr, size, tag_mode, -1,
- &ctx->left, &tlv_constr);
- if(rval.code != RC_OK)
- return rval;
-
- if(tlv_constr) {
- /*
- * Complex operation, requires stack of expectations.
- */
- ctx->ptr = _new_stack();
- if(!ctx->ptr) {
- RETURN(RC_FAIL);
- }
- } else {
- /*
- * Jump into stackless primitive decoding.
- */
- _CH_PHASE(ctx, 3);
- if(type_variant == ASN_OSUBV_ANY && tag_mode != 1)
- APPEND(buf_ptr, rval.consumed);
- ADVANCE(rval.consumed);
- goto phase3;
- }
-
- NEXT_PHASE(ctx);
- /* Fall through */
- case 1:
- phase1:
- /*
- * Fill the stack with expectations.
- */
- stck = (struct _stack *)ctx->ptr;
- sel = stck->cur_ptr;
- do {
- ber_tlv_tag_t tlv_tag;
- ber_tlv_len_t tlv_len;
- ber_tlv_tag_t expected_tag;
- ssize_t tl, ll, tlvl;
- /* This one works even if (sel->left == -1) */
- size_t Left = ((!sel||(size_t)sel->left >= size)
- ?size:(size_t)sel->left);
-
-
- ASN_DEBUG("%p, s->l=%ld, s->wn=%ld, s->g=%ld\n", (void *)sel,
- (long)(sel?sel->left:0),
- (long)(sel?sel->want_nulls:0),
- (long)(sel?sel->got:0)
- );
- if(sel && sel->left <= 0 && sel->want_nulls == 0) {
- if(sel->prev) {
- struct _stack_el *prev = sel->prev;
- if(prev->left != -1) {
- if(prev->left < sel->got)
- RETURN(RC_FAIL);
- prev->left -= sel->got;
- }
- prev->got += sel->got;
- sel = stck->cur_ptr = prev;
- if(!sel) break;
- tlv_constr = 1;
- continue;
- } else {
- sel = stck->cur_ptr = 0;
- break; /* Nothing to wait */
- }
- }
-
- tl = ber_fetch_tag(buf_ptr, Left, &tlv_tag);
- ASN_DEBUG("fetch tag(size=%ld,L=%ld), %sstack, left=%ld, wn=%ld, tl=%ld",
- (long)size, (long)Left, sel?"":"!",
- (long)(sel?sel->left:0),
- (long)(sel?sel->want_nulls:0),
- (long)tl);
- switch(tl) {
- case -1: RETURN(RC_FAIL);
- case 0: RETURN(RC_WMORE);
- }
-
- tlv_constr = BER_TLV_CONSTRUCTED(buf_ptr);
-
- ll = ber_fetch_length(tlv_constr,
- (const char *)buf_ptr + tl,Left - tl,&tlv_len);
- ASN_DEBUG("Got tag=%s, tc=%d, left=%ld, tl=%ld, len=%ld, ll=%ld",
- ber_tlv_tag_string(tlv_tag), tlv_constr,
- (long)Left, (long)tl, (long)tlv_len, (long)ll);
- switch(ll) {
- case -1: RETURN(RC_FAIL);
- case 0: RETURN(RC_WMORE);
- }
-
- if(sel && sel->want_nulls
- && ((const uint8_t *)buf_ptr)[0] == 0
- && ((const uint8_t *)buf_ptr)[1] == 0)
- {
-
- ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls);
-
- if(type_variant == ASN_OSUBV_ANY
- && (tag_mode != 1 || sel->cont_level))
- APPEND("\0\0", 2);
-
- ADVANCE(2);
- sel->got += 2;
- if(sel->left != -1) {
- sel->left -= 2; /* assert(sel->left >= 2) */
- }
-
- sel->want_nulls--;
- if(sel->want_nulls == 0) {
- /* Move to the next expectation */
- sel->left = 0;
- tlv_constr = 1;
- }
-
- continue;
- }
-
- /*
- * Set up expected tags,
- * depending on ASN.1 type being decoded.
- */
- switch(type_variant) {
- case ASN_OSUBV_BIT:
- /* X.690: 8.6.4.1, NOTE 2 */
- /* Fall through */
- case ASN_OSUBV_STR:
- default:
- if(sel) {
- unsigned level = sel->cont_level;
- if(level < td->all_tags_count) {
- expected_tag = td->all_tags[level];
- break;
- } else if(td->all_tags_count) {
- expected_tag = td->all_tags
- [td->all_tags_count - 1];
- break;
- }
- /* else, Fall through */
- }
- /* Fall through */
- case ASN_OSUBV_ANY:
- expected_tag = tlv_tag;
- break;
- }
-
-
- if(tlv_tag != expected_tag) {
- char buf[2][32];
- ber_tlv_tag_snprint(tlv_tag,
- buf[0], sizeof(buf[0]));
- ber_tlv_tag_snprint(td->tags[td->tags_count-1],
- buf[1], sizeof(buf[1]));
- ASN_DEBUG("Tag does not match expectation: %s != %s",
- buf[0], buf[1]);
- RETURN(RC_FAIL);
- }
-
- tlvl = tl + ll; /* Combined length of T and L encoding */
- if((tlv_len + tlvl) < 0) {
- /* tlv_len value is too big */
- ASN_DEBUG("TLV encoding + length (%ld) is too big",
- (long)tlv_len);
- RETURN(RC_FAIL);
- }
-
- /*
- * Append a new expectation.
- */
- sel = OS__add_stack_el(stck);
- if(!sel) RETURN(RC_FAIL);
-
- sel->tag = tlv_tag;
-
- sel->want_nulls = (tlv_len==-1);
- if(sel->prev && sel->prev->left != -1) {
- /* Check that the parent frame is big enough */
- if(sel->prev->left < tlvl + (tlv_len==-1?0:tlv_len))
- RETURN(RC_FAIL);
- if(tlv_len == -1)
- sel->left = sel->prev->left - tlvl;
- else
- sel->left = tlv_len;
- } else {
- sel->left = tlv_len;
- }
- if(type_variant == ASN_OSUBV_ANY
- && (tag_mode != 1 || sel->cont_level))
- APPEND(buf_ptr, tlvl);
- sel->got += tlvl;
- ADVANCE(tlvl);
-
- ASN_DEBUG("+EXPECT2 got=%ld left=%ld, wn=%d, clvl=%u",
- (long)sel->got, (long)sel->left,
- sel->want_nulls, sel->cont_level);
-
- } while(tlv_constr);
- if(sel == NULL) {
- /* Finished operation, "phase out" */
- ASN_DEBUG("Phase out");
- _CH_PHASE(ctx, +3);
- break;
- }
-
- NEXT_PHASE(ctx);
- /* Fall through */
- case 2:
- stck = (struct _stack *)ctx->ptr;
- sel = stck->cur_ptr;
- ASN_DEBUG("Phase 2: Need %ld bytes, size=%ld, alrg=%ld, wn=%d",
- (long)sel->left, (long)size, (long)sel->got,
- sel->want_nulls);
- {
- ber_tlv_len_t len;
-
- assert(sel->left >= 0);
-
- len = ((ber_tlv_len_t)size < sel->left)
- ? (ber_tlv_len_t)size : sel->left;
- if(len > 0) {
- if(type_variant == ASN_OSUBV_BIT
- && sel->bits_chopped == 0) {
- /* Put the unused-bits-octet away */
- st->bits_unused = *(const uint8_t *)buf_ptr;
- APPEND(((const char *)buf_ptr+1), (len - 1));
- sel->bits_chopped = 1;
- } else {
- APPEND(buf_ptr, len);
- }
- ADVANCE(len);
- sel->left -= len;
- sel->got += len;
- }
-
- if(sel->left) {
- ASN_DEBUG("OS left %ld, size = %ld, wn=%d\n",
- (long)sel->left, (long)size, sel->want_nulls);
- RETURN(RC_WMORE);
- }
-
- PREV_PHASE(ctx);
- goto phase1;
- }
- break;
- case 3:
- phase3:
- /*
- * Primitive form, no stack required.
- */
- assert(ctx->left >= 0);
-
- if(size < (size_t)ctx->left) {
- if(!size) RETURN(RC_WMORE);
- if(type_variant == ASN_OSUBV_BIT && !ctx->context) {
- st->bits_unused = *(const uint8_t *)buf_ptr;
- ctx->left--;
- ADVANCE(1);
- }
- APPEND(buf_ptr, size);
- assert(ctx->context > 0);
- ctx->left -= size;
- ADVANCE(size);
- RETURN(RC_WMORE);
- } else {
- if(type_variant == ASN_OSUBV_BIT
- && !ctx->context && ctx->left) {
- st->bits_unused = *(const uint8_t *)buf_ptr;
- ctx->left--;
- ADVANCE(1);
- }
- APPEND(buf_ptr, ctx->left);
- ADVANCE(ctx->left);
- ctx->left = 0;
-
- NEXT_PHASE(ctx);
- }
- break;
- }
-
- if(sel) {
- ASN_DEBUG("3sel p=%p, wn=%d, l=%ld, g=%ld, size=%ld",
- (void *)sel->prev, sel->want_nulls,
- (long)sel->left, (long)sel->got, (long)size);
- if(sel->prev || sel->want_nulls > 1 || sel->left > 0) {
- RETURN(RC_WMORE);
- }
- }
-
- /*
- * BIT STRING-specific processing.
- */
- if(type_variant == ASN_OSUBV_BIT) {
- if(st->size) {
- if(st->bits_unused < 0 || st->bits_unused > 7) {
- RETURN(RC_FAIL);
- }
- /* Finalize BIT STRING: zero out unused bits. */
- st->buf[st->size-1] &= 0xff << st->bits_unused;
- } else {
- if(st->bits_unused) {
- RETURN(RC_FAIL);
- }
- }
- }
-
- ASN_DEBUG("Took %ld bytes to encode %s: [%s]:%ld",
- (long)consumed_myself, td->name,
- (type_variant == ASN_OSUBV_STR) ? (char *)st->buf : "<data>",
- (long)st->size);
-
-
- RETURN(RC_OK);
-}
-
-/*
- * Encode OCTET STRING type using DER.
- */
-asn_enc_rval_t
-OCTET_STRING_encode_der(const asn_TYPE_descriptor_t *td, const void *sptr,
- int tag_mode, ber_tlv_tag_t tag,
- asn_app_consume_bytes_f *cb, void *app_key) {
- asn_enc_rval_t er = { 0, 0, 0 };
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
- enum asn_OS_Subvariant type_variant = specs->subvariant;
- int fix_last_byte = 0;
-
- ASN_DEBUG("%s %s as OCTET STRING",
- cb?"Estimating":"Encoding", td->name);
-
- /*
- * Write tags.
- */
- if(type_variant != ASN_OSUBV_ANY || tag_mode == 1) {
- er.encoded = der_write_tags(td,
- (type_variant == ASN_OSUBV_BIT) + st->size,
- tag_mode, type_variant == ASN_OSUBV_ANY, tag,
- cb, app_key);
- if(er.encoded == -1) {
- er.failed_type = td;
- er.structure_ptr = sptr;
- return er;
- }
- } else {
- /* Disallow: [<tag>] IMPLICIT ANY */
- assert(type_variant != ASN_OSUBV_ANY || tag_mode != -1);
- er.encoded = 0;
- }
-
- if(!cb) {
- er.encoded += (type_variant == ASN_OSUBV_BIT) + st->size;
- ASN__ENCODED_OK(er);
- }
-
- /*
- * Prepare to deal with the last octet of BIT STRING.
- */
- if(type_variant == ASN_OSUBV_BIT) {
- uint8_t b = st->bits_unused & 0x07;
- if(b && st->size) fix_last_byte = 1;
- ASN__CALLBACK(&b, 1);
- }
-
- /* Invoke callback for the main part of the buffer */
- ASN__CALLBACK(st->buf, st->size - fix_last_byte);
-
- /* The last octet should be stripped off the unused bits */
- if(fix_last_byte) {
- uint8_t b = st->buf[st->size-1] & (0xff << st->bits_unused);
- ASN__CALLBACK(&b, 1);
- }
-
- ASN__ENCODED_OK(er);
-cb_failed:
- ASN__ENCODE_FAILED;
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, enum xer_encoder_flags_e flags,
- asn_app_consume_bytes_f *cb, void *app_key) {
- const char * const h2c = "0123456789ABCDEF";
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- asn_enc_rval_t er = { 0, 0, 0 };
- char scratch[16 * 3 + 4];
- char *p = scratch;
- uint8_t *buf;
- uint8_t *end;
- size_t i;
-
- if(!st || (!st->buf && st->size))
- ASN__ENCODE_FAILED;
-
- er.encoded = 0;
-
- /*
- * Dump the contents of the buffer in hexadecimal.
- */
- buf = st->buf;
- end = buf + st->size;
- if(flags & XER_F_CANONICAL) {
- char *scend = scratch + (sizeof(scratch) - 2);
- for(; buf < end; buf++) {
- if(p >= scend) {
- ASN__CALLBACK(scratch, p - scratch);
- p = scratch;
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- }
-
- ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
- } else {
- for(i = 0; buf < end; buf++, i++) {
- if(!(i % 16) && (i || st->size > 16)) {
- ASN__CALLBACK(scratch, p-scratch);
- p = scratch;
- ASN__TEXT_INDENT(1, ilevel);
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- *p++ = 0x20;
- }
- if(p - scratch) {
- p--; /* Remove the tail space */
- ASN__CALLBACK(scratch, p-scratch); /* Dump the rest */
- if(st->size > 16)
- ASN__TEXT_INDENT(1, ilevel-1);
- }
- }
-
- ASN__ENCODED_OK(er);
-cb_failed:
- ASN__ENCODE_FAILED;
-}
-
-static const struct OCTET_STRING__xer_escape_table_s {
- const char *string;
- int size;
-} OCTET_STRING__xer_escape_table[] = {
-#define OSXET(s) { s, sizeof(s) - 1 }
- OSXET("\074\156\165\154\057\076"), /* <nul/> */
- OSXET("\074\163\157\150\057\076"), /* <soh/> */
- OSXET("\074\163\164\170\057\076"), /* <stx/> */
- OSXET("\074\145\164\170\057\076"), /* <etx/> */
- OSXET("\074\145\157\164\057\076"), /* <eot/> */
- OSXET("\074\145\156\161\057\076"), /* <enq/> */
- OSXET("\074\141\143\153\057\076"), /* <ack/> */
- OSXET("\074\142\145\154\057\076"), /* <bel/> */
- OSXET("\074\142\163\057\076"), /* <bs/> */
- OSXET("\011"), /* \t */
- OSXET("\012"), /* \n */
- OSXET("\074\166\164\057\076"), /* <vt/> */
- OSXET("\074\146\146\057\076"), /* <ff/> */
- OSXET("\015"), /* \r */
- OSXET("\074\163\157\057\076"), /* <so/> */
- OSXET("\074\163\151\057\076"), /* <si/> */
- OSXET("\074\144\154\145\057\076"), /* <dle/> */
- OSXET("\074\144\143\061\057\076"), /* <de1/> */
- OSXET("\074\144\143\062\057\076"), /* <de2/> */
- OSXET("\074\144\143\063\057\076"), /* <de3/> */
- OSXET("\074\144\143\064\057\076"), /* <de4/> */
- OSXET("\074\156\141\153\057\076"), /* <nak/> */
- OSXET("\074\163\171\156\057\076"), /* <syn/> */
- OSXET("\074\145\164\142\057\076"), /* <etb/> */
- OSXET("\074\143\141\156\057\076"), /* <can/> */
- OSXET("\074\145\155\057\076"), /* <em/> */
- OSXET("\074\163\165\142\057\076"), /* <sub/> */
- OSXET("\074\145\163\143\057\076"), /* <esc/> */
- OSXET("\074\151\163\064\057\076"), /* <is4/> */
- OSXET("\074\151\163\063\057\076"), /* <is3/> */
- OSXET("\074\151\163\062\057\076"), /* <is2/> */
- OSXET("\074\151\163\061\057\076"), /* <is1/> */
- { 0, 0 }, /* " " */
- { 0, 0 }, /* ! */
- { 0, 0 }, /* \" */
- { 0, 0 }, /* # */
- { 0, 0 }, /* $ */
- { 0, 0 }, /* % */
- OSXET("\046\141\155\160\073"), /* & */
- { 0, 0 }, /* ' */
- {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* ()*+,-./ */
- {0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, /* 01234567 */
- {0,0},{0,0},{0,0},{0,0}, /* 89:; */
- OSXET("\046\154\164\073"), /* < */
- { 0, 0 }, /* = */
- OSXET("\046\147\164\073"), /* > */
-};
-
-static int
-OS__check_escaped_control_char(const void *buf, int size) {
- size_t i;
- /*
- * Inefficient algorithm which translates the escape sequences
- * defined above into characters. Returns -1 if not found.
- * TODO: replace by a faster algorithm (bsearch(), hash or
- * nested table lookups).
- */
- for(i = 0; i < 32 /* Don't spend time on the bottom half */; i++) {
- const struct OCTET_STRING__xer_escape_table_s *el;
- el = &OCTET_STRING__xer_escape_table[i];
- if(el->size == size && memcmp(buf, el->string, size) == 0)
- return i;
- }
- return -1;
-}
-
-static int
-OCTET_STRING__handle_control_chars(void *struct_ptr, const void *chunk_buf, size_t chunk_size) {
- /*
- * This might be one of the escape sequences
- * for control characters. Check it out.
- * #11.15.5
- */
- int control_char = OS__check_escaped_control_char(chunk_buf,chunk_size);
- if(control_char >= 0) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)struct_ptr;
- void *p = REALLOC(st->buf, st->size + 2);
- if(p) {
- st->buf = (uint8_t *)p;
- st->buf[st->size++] = control_char;
- st->buf[st->size] = '\0'; /* nul-termination */
- return 0;
- }
- }
-
- return -1; /* No, it's not */
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_xer_utf8(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, enum xer_encoder_flags_e flags,
- asn_app_consume_bytes_f *cb, void *app_key) {
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- asn_enc_rval_t er = { 0, 0, 0 };
- uint8_t *buf, *end;
- uint8_t *ss; /* Sequence start */
- ssize_t encoded_len = 0;
-
- (void)ilevel; /* Unused argument */
- (void)flags; /* Unused argument */
-
- if(!st || (!st->buf && st->size))
- ASN__ENCODE_FAILED;
-
- buf = st->buf;
- end = buf + st->size;
- for(ss = buf; buf < end; buf++) {
- unsigned int ch = *buf;
- int s_len; /* Special encoding sequence length */
-
- /*
- * Escape certain characters: X.680/11.15
- */
- if(ch < sizeof(OCTET_STRING__xer_escape_table)
- /sizeof(OCTET_STRING__xer_escape_table[0])
- && (s_len = OCTET_STRING__xer_escape_table[ch].size)) {
- if(((buf - ss) && cb(ss, buf - ss, app_key) < 0)
- || cb(OCTET_STRING__xer_escape_table[ch].string, s_len,
- app_key) < 0)
- ASN__ENCODE_FAILED;
- encoded_len += (buf - ss) + s_len;
- ss = buf + 1;
- }
- }
-
- encoded_len += (buf - ss);
- if((buf - ss) && cb(ss, buf - ss, app_key) < 0)
- ASN__ENCODE_FAILED;
-
- er.encoded = encoded_len;
- ASN__ENCODED_OK(er);
-}
-
-/*
- * Convert from hexadecimal format (cstring): "AB CD EF"
- */
-static ssize_t OCTET_STRING__convert_hexadecimal(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- const char *chunk_stop = (const char *)chunk_buf;
- const char *p = chunk_stop;
- const char *pend = p + chunk_size;
- unsigned int clv = 0;
- int half = 0; /* Half bit */
- uint8_t *buf;
-
- /* Reallocate buffer according to high cap estimation */
- size_t new_size = st->size + (chunk_size + 1) / 2;
- void *nptr = REALLOC(st->buf, new_size + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- /*
- * If something like " a b c " appears here, the " a b":3 will be
- * converted, and the rest skipped. That is, unless buf_size is greater
- * than chunk_size, then it'll be equivalent to "ABC0".
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- switch(ch) {
- case 0x09: case 0x0a: case 0x0c: case 0x0d:
- case 0x20:
- /* Ignore whitespace */
- continue;
- case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
- case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
- clv = (clv << 4) + (ch - 0x30);
- break;
- case 0x41: case 0x42: case 0x43: /* ABC */
- case 0x44: case 0x45: case 0x46: /* DEF */
- clv = (clv << 4) + (ch - 0x41 + 10);
- break;
- case 0x61: case 0x62: case 0x63: /* abc */
- case 0x64: case 0x65: case 0x66: /* def */
- clv = (clv << 4) + (ch - 0x61 + 10);
- break;
- default:
- *buf = 0; /* JIC */
- return -1;
- }
- if(half++) {
- half = 0;
- *buf++ = clv;
- chunk_stop = p + 1;
- }
- }
-
- /*
- * Check partial decoding.
- */
- if(half) {
- if(have_more) {
- /*
- * Partial specification is fine,
- * because no more more PXER_TEXT data is available.
- */
- *buf++ = clv << 4;
- chunk_stop = p;
- }
- } else {
- chunk_stop = p;
- }
-
- st->size = buf - st->buf; /* Adjust the buffer size */
- assert(st->size <= new_size);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return (chunk_stop - (const char *)chunk_buf); /* Converted size */
-}
-
-/*
- * Convert from binary format: "00101011101"
- */
-static ssize_t OCTET_STRING__convert_binary(void *sptr, const void *chunk_buf, size_t chunk_size, int have_more) {
- BIT_STRING_t *st = (BIT_STRING_t *)sptr;
- const char *p = (const char *)chunk_buf;
- const char *pend = p + chunk_size;
- int bits_unused = st->bits_unused & 0x7;
- uint8_t *buf;
-
- /* Reallocate buffer according to high cap estimation */
- size_t new_size = st->size + (chunk_size + 7) / 8;
- void *nptr = REALLOC(st->buf, new_size + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- (void)have_more;
-
- if(bits_unused == 0)
- bits_unused = 8;
- else if(st->size)
- buf--;
-
- /*
- * Convert series of 0 and 1 into the octet string.
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- switch(ch) {
- case 0x09: case 0x0a: case 0x0c: case 0x0d:
- case 0x20:
- /* Ignore whitespace */
- break;
- case 0x30:
- case 0x31:
- if(bits_unused-- <= 0) {
- *++buf = 0; /* Clean the cell */
- bits_unused = 7;
- }
- *buf |= (ch&1) << bits_unused;
- break;
- default:
- st->bits_unused = bits_unused;
- return -1;
- }
- }
-
- if(bits_unused == 8) {
- st->size = buf - st->buf;
- st->bits_unused = 0;
- } else {
- st->size = buf - st->buf + 1;
- st->bits_unused = bits_unused;
- }
-
- assert(st->size <= new_size);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return chunk_size; /* Converted in full */
-}
-
-/*
- * Something like strtod(), but with stricter rules.
- */
-static int
-OS__strtoent(int base, const char *buf, const char *end, int32_t *ret_value) {
- const int32_t last_unicode_codepoint = 0x10ffff;
- int32_t val = 0;
- const char *p;
-
- for(p = buf; p < end; p++) {
- int ch = *p;
-
- switch(ch) {
- case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: /*01234*/
- case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: /*56789*/
- val = val * base + (ch - 0x30);
- break;
- case 0x41: case 0x42: case 0x43: /* ABC */
- case 0x44: case 0x45: case 0x46: /* DEF */
- val = val * base + (ch - 0x41 + 10);
- break;
- case 0x61: case 0x62: case 0x63: /* abc */
- case 0x64: case 0x65: case 0x66: /* def */
- val = val * base + (ch - 0x61 + 10);
- break;
- case 0x3b: /* ';' */
- *ret_value = val;
- return (p - buf) + 1;
- default:
- return -1; /* Character set error */
- }
-
- /* Value exceeds the Unicode range. */
- if(val > last_unicode_codepoint) {
- return -1;
- }
- }
-
- *ret_value = -1;
- return (p - buf);
-}
-
-/*
- * Convert from the plain UTF-8 format, expanding entity references: "2 < 3"
- */
-static ssize_t
-OCTET_STRING__convert_entrefs(void *sptr, const void *chunk_buf,
- size_t chunk_size, int have_more) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- const char *p = (const char *)chunk_buf;
- const char *pend = p + chunk_size;
- uint8_t *buf;
-
- /* Reallocate buffer */
- size_t new_size = st->size + chunk_size;
- void *nptr = REALLOC(st->buf, new_size + 1);
- if(!nptr) return -1;
- st->buf = (uint8_t *)nptr;
- buf = st->buf + st->size;
-
- /*
- * Convert series of 0 and 1 into the octet string.
- */
- for(; p < pend; p++) {
- int ch = *(const unsigned char *)p;
- int len; /* Length of the rest of the chunk */
-
- if(ch != 0x26 /* '&' */) {
- *buf++ = ch;
- continue; /* That was easy... */
- }
-
- /*
- * Process entity reference.
- */
- len = chunk_size - (p - (const char *)chunk_buf);
- if(len == 1 /* "&" */) goto want_more;
- if(p[1] == 0x23 /* '#' */) {
- const char *pval; /* Pointer to start of digits */
- int32_t val = 0; /* Entity reference value */
- int base;
-
- if(len == 2 /* "&#" */) goto want_more;
- if(p[2] == 0x78 /* 'x' */)
- pval = p + 3, base = 16;
- else
- pval = p + 2, base = 10;
- len = OS__strtoent(base, pval, p + len, &val);
- if(len == -1) {
- /* Invalid charset. Just copy verbatim. */
- *buf++ = ch;
- continue;
- }
- if(!len || pval[len-1] != 0x3b) goto want_more;
- assert(val > 0);
- p += (pval - p) + len - 1; /* Advance past entref */
-
- if(val < 0x80) {
- *buf++ = (char)val;
- } else if(val < 0x800) {
- *buf++ = 0xc0 | ((val >> 6));
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x10000) {
- *buf++ = 0xe0 | ((val >> 12));
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x200000) {
- *buf++ = 0xf0 | ((val >> 18));
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else if(val < 0x4000000) {
- *buf++ = 0xf8 | ((val >> 24));
- *buf++ = 0x80 | ((val >> 18) & 0x3f);
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- } else {
- *buf++ = 0xfc | ((val >> 30) & 0x1);
- *buf++ = 0x80 | ((val >> 24) & 0x3f);
- *buf++ = 0x80 | ((val >> 18) & 0x3f);
- *buf++ = 0x80 | ((val >> 12) & 0x3f);
- *buf++ = 0x80 | ((val >> 6) & 0x3f);
- *buf++ = 0x80 | ((val & 0x3f));
- }
- } else {
- /*
- * Ugly, limited parsing of & > <
- */
- char *sc = (char *)memchr(p, 0x3b, len > 5 ? 5 : len);
- if(!sc) goto want_more;
- if((sc - p) == 4
- && p[1] == 0x61 /* 'a' */
- && p[2] == 0x6d /* 'm' */
- && p[3] == 0x70 /* 'p' */) {
- *buf++ = 0x26;
- p = sc;
- continue;
- }
- if((sc - p) == 3) {
- if(p[1] == 0x6c) {
- *buf = 0x3c; /* '<' */
- } else if(p[1] == 0x67) {
- *buf = 0x3e; /* '>' */
- } else {
- /* Unsupported entity reference */
- *buf++ = ch;
- continue;
- }
- if(p[2] != 0x74) {
- /* Unsupported entity reference */
- *buf++ = ch;
- continue;
- }
- buf++;
- p = sc;
- continue;
- }
- /* Unsupported entity reference */
- *buf++ = ch;
- }
-
- continue;
- want_more:
- if(have_more) {
- /*
- * We know that no more data (of the same type)
- * is coming. Copy the rest verbatim.
- */
- *buf++ = ch;
- continue;
- }
- chunk_size = (p - (const char *)chunk_buf);
- /* Processing stalled: need more data */
- break;
- }
-
- st->size = buf - st->buf;
- assert(st->size <= new_size);
- st->buf[st->size] = 0; /* Courtesy termination */
-
- return chunk_size; /* Converted in full */
-}
-
-/*
- * Decode OCTET STRING from the XML element's body.
- */
-static asn_dec_rval_t
-OCTET_STRING__decode_xer(
- const asn_codec_ctx_t *opt_codec_ctx, const asn_TYPE_descriptor_t *td,
- void **sptr, const char *opt_mname, const void *buf_ptr, size_t size,
- int (*opt_unexpected_tag_decoder)(void *struct_ptr, const void *chunk_buf,
- size_t chunk_size),
- ssize_t (*body_receiver)(void *struct_ptr, const void *chunk_buf,
- size_t chunk_size, int have_more)) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
- asn_struct_ctx_t *ctx; /* Per-structure parser context */
- asn_dec_rval_t rval; /* Return value from the decoder */
- int st_allocated;
-
- /*
- * Create the string if does not exist.
- */
- if(!st) {
- st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
- *sptr = (void *)st;
- if(!st) goto sta_failed;
- st_allocated = 1;
- } else {
- st_allocated = 0;
- }
- if(!st->buf) {
- /* This is separate from above section */
- st->buf = (uint8_t *)CALLOC(1, 1);
- if(!st->buf) {
- if(st_allocated) {
- *sptr = 0;
- goto stb_failed;
- } else {
- goto sta_failed;
- }
- }
- }
-
- /* Restore parsing context */
- ctx = (asn_struct_ctx_t *)(((char *)*sptr) + specs->ctx_offset);
-
- return xer_decode_general(opt_codec_ctx, ctx, *sptr, xml_tag,
- buf_ptr, size, opt_unexpected_tag_decoder, body_receiver);
-
-stb_failed:
- FREEMEM(st);
-sta_failed:
- rval.code = RC_FAIL;
- rval.consumed = 0;
- return rval;
-}
-
-/*
- * Decode OCTET STRING from the hexadecimal data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_hex(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **sptr,
- const char *opt_mname, const void *buf_ptr,
- size_t size) {
- return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size, 0, OCTET_STRING__convert_hexadecimal);
-}
-
-/*
- * Decode OCTET STRING from the binary (0/1) data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_binary(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **sptr,
- const char *opt_mname, const void *buf_ptr,
- size_t size) {
- return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size, 0, OCTET_STRING__convert_binary);
-}
-
-/*
- * Decode OCTET STRING from the string (ASCII/UTF-8) data.
- */
-asn_dec_rval_t
-OCTET_STRING_decode_xer_utf8(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td, void **sptr,
- const char *opt_mname, const void *buf_ptr,
- size_t size) {
- return OCTET_STRING__decode_xer(opt_codec_ctx, td, sptr, opt_mname,
- buf_ptr, size,
- OCTET_STRING__handle_control_chars,
- OCTET_STRING__convert_entrefs);
-}
-
-#ifndef ASN_DISABLE_PER_SUPPORT
-
-static int
-OCTET_STRING_per_get_characters(asn_per_data_t *po, uint8_t *buf,
- size_t units, unsigned int bpc, unsigned int unit_bits,
- long lb, long ub, const asn_per_constraints_t *pc) {
- uint8_t *end = buf + units * bpc;
-
- ASN_DEBUG("Expanding %d characters into (%ld..%ld):%d",
- (int)units, lb, ub, unit_bits);
-
- /* X.691: 27.5.4 */
- if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
- /* Decode without translation */
- lb = 0;
- } else if(pc && pc->code2value) {
- if(unit_bits > 16)
- return 1; /* FATAL: can't have constrained
- * UniversalString with more than
- * 16 million code points */
- for(; buf < end; buf += bpc) {
- int value;
- int code = per_get_few_bits(po, unit_bits);
- if(code < 0) return -1; /* WMORE */
- value = pc->code2value(code);
- if(value < 0) {
- ASN_DEBUG("Code %d (0x%02x) is"
- " not in map (%ld..%ld)",
- code, code, lb, ub);
- return 1; /* FATAL */
- }
- switch(bpc) {
- case 1: *buf = value; break;
- case 2: buf[0] = value >> 8; buf[1] = value; break;
- case 4: buf[0] = value >> 24; buf[1] = value >> 16;
- buf[2] = value >> 8; buf[3] = value; break;
- }
- }
- return 0;
- }
-
- /* Shortcut the no-op copying to the aligned structure */
- if(lb == 0 && (unit_bits == 8 * bpc)) {
- return per_get_many_bits(po, buf, 0, unit_bits * units);
- }
-
- for(; buf < end; buf += bpc) {
- int32_t code = per_get_few_bits(po, unit_bits);
- int32_t ch = code + lb;
- if(code < 0) return -1; /* WMORE */
- if(ch > ub) {
- ASN_DEBUG("Code %d is out of range (%ld..%ld)",
- ch, lb, ub);
- return 1; /* FATAL */
- }
- switch(bpc) {
- case 1: *buf = ch; break;
- case 2: buf[0] = ch >> 8; buf[1] = ch; break;
- case 4: buf[0] = ch >> 24; buf[1] = ch >> 16;
- buf[2] = ch >> 8; buf[3] = ch; break;
- }
- }
-
- return 0;
-}
-
-static int
-OCTET_STRING_per_put_characters(asn_per_outp_t *po, const uint8_t *buf,
- size_t units, unsigned int bpc, unsigned int unit_bits,
- long lb, long ub, const asn_per_constraints_t *pc) {
- const uint8_t *end = buf + units * bpc;
-
- ASN_DEBUG("Squeezing %d characters into (%ld..%ld):%d (%d bpc)",
- (int)units, lb, ub, unit_bits, bpc);
-
- /* X.691: 27.5.4 */
- if((unsigned long)ub <= ((unsigned long)2 << (unit_bits - 1))) {
- /* Encode as is */
- lb = 0;
- } else if(pc && pc->value2code) {
- for(; buf < end; buf += bpc) {
- int code;
- uint32_t value;
- switch(bpc) {
- case 1: value = *(const uint8_t *)buf; break;
- case 2: value = (buf[0] << 8) | buf[1]; break;
- case 4: value = (buf[0] << 24) | (buf[1] << 16)
- | (buf[2] << 8) | buf[3]; break;
- default: return -1;
- }
- code = pc->value2code(value);
- if(code < 0) {
- ASN_DEBUG("Character %d (0x%02x) is"
- " not in map (%ld..%ld)",
- *buf, *buf, lb, ub);
- return -1;
- }
- if(per_put_few_bits(po, code, unit_bits))
- return -1;
- }
- }
-
- /* Shortcut the no-op copying to the aligned structure */
- if(lb == 0 && (unit_bits == 8 * bpc)) {
- return per_put_many_bits(po, buf, unit_bits * units);
- }
-
- for(ub -= lb; buf < end; buf += bpc) {
- int ch;
- uint32_t value;
- switch(bpc) {
- case 1:
- value = *(const uint8_t *)buf;
- break;
- case 2:
- value = (buf[0] << 8) | buf[1];
- break;
- case 4:
- value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
- break;
- default:
- return -1;
- }
- ch = value - lb;
- if(ch < 0 || ch > ub) {
- ASN_DEBUG("Character %d (0x%02x) is out of range (%ld..%ld)", *buf,
- value, lb, ub + lb);
- return -1;
- }
- if(per_put_few_bits(po, ch, unit_bits)) return -1;
- }
-
- return 0;
-}
-
-static asn_per_constraints_t asn_DEF_OCTET_STRING_constraints = {
- { APC_CONSTRAINED, 8, 8, 0, 255 },
- { APC_SEMI_CONSTRAINED, -1, -1, 0, 0 },
- 0, 0
-};
-
-asn_dec_rval_t
-OCTET_STRING_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints, void **sptr,
- asn_per_data_t *pd) {
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const asn_per_constraints_t *pc =
- constraints ? constraints : td->encoding_constraints.per_constraints;
- const asn_per_constraint_t *cval;
- const asn_per_constraint_t *csiz;
- asn_dec_rval_t rval = { RC_OK, 0 };
- OCTET_STRING_t *st = (OCTET_STRING_t *)*sptr;
- ssize_t consumed_myself = 0;
- int repeat;
- enum {
- OS__BPC_CHAR = 1,
- OS__BPC_U16 = 2,
- OS__BPC_U32 = 4
- } bpc; /* Bytes per character */
- unsigned int unit_bits;
- unsigned int canonical_unit_bits;
-
- (void)opt_codec_ctx;
-
- if(pc) {
- cval = &pc->value;
- csiz = &pc->size;
- } else {
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- }
-
- switch(specs->subvariant) {
- default:
- case ASN_OSUBV_ANY:
- case ASN_OSUBV_BIT:
- ASN_DEBUG("Unrecognized subvariant %d", specs->subvariant);
- RETURN(RC_FAIL);
- break;
- case ASN_OSUBV_STR:
- canonical_unit_bits = unit_bits = 8;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_CHAR;
- break;
- case ASN_OSUBV_U16:
- canonical_unit_bits = unit_bits = 16;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U16;
- break;
- case ASN_OSUBV_U32:
- canonical_unit_bits = unit_bits = 32;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U32;
- break;
- }
-
- /*
- * Allocate the string.
- */
- if(!st) {
- st = (OCTET_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(!st) RETURN(RC_FAIL);
- }
-
- ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
- csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
- csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
-
- if(csiz->flags & APC_EXTENSIBLE) {
- int inext = per_get_few_bits(pd, 1);
- if(inext < 0) RETURN(RC_WMORE);
- if(inext) {
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- unit_bits = canonical_unit_bits;
- }
- }
-
- if(csiz->effective_bits >= 0) {
- FREEMEM(st->buf);
- if(bpc) {
- st->size = csiz->upper_bound * bpc;
- } else {
- st->size = (csiz->upper_bound + 7) >> 3;
- }
- st->buf = (uint8_t *)MALLOC(st->size + 1);
- if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
- }
-
- /* X.691, #16.5: zero-length encoding */
- /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
- /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(csiz->effective_bits == 0) {
- int ret;
- if(bpc) {
- ASN_DEBUG("Encoding OCTET STRING size %ld",
- csiz->upper_bound);
- ret = OCTET_STRING_per_get_characters(pd, st->buf,
- csiz->upper_bound, bpc, unit_bits,
- cval->lower_bound, cval->upper_bound, pc);
- if(ret > 0) RETURN(RC_FAIL);
- } else {
- ASN_DEBUG("Encoding BIT STRING size %ld",
- csiz->upper_bound);
- ret = per_get_many_bits(pd, st->buf, 0,
- unit_bits * csiz->upper_bound);
- }
- if(ret < 0) RETURN(RC_WMORE);
- consumed_myself += unit_bits * csiz->upper_bound;
- st->buf[st->size] = 0;
- RETURN(RC_OK);
- }
-
- st->size = 0;
- do {
- ssize_t raw_len;
- ssize_t len_bytes;
- void *p;
- int ret;
-
- /* Get the PER length */
- raw_len = uper_get_length(pd, csiz->effective_bits, csiz->lower_bound,
- &repeat);
- if(raw_len < 0) RETURN(RC_WMORE);
- if(raw_len == 0 && st->buf) break;
-
- ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
- (long)csiz->effective_bits, (long)raw_len,
- repeat ? "repeat" : "once", td->name);
- len_bytes = raw_len * bpc;
- p = REALLOC(st->buf, st->size + len_bytes + 1);
- if(!p) RETURN(RC_FAIL);
- st->buf = (uint8_t *)p;
-
- ret = OCTET_STRING_per_get_characters(pd, &st->buf[st->size], raw_len,
- bpc, unit_bits, cval->lower_bound,
- cval->upper_bound, pc);
- if(ret > 0) RETURN(RC_FAIL);
- if(ret < 0) RETURN(RC_WMORE);
- st->size += len_bytes;
- } while(repeat);
- st->buf[st->size] = 0; /* nul-terminate */
-
- return rval;
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_uper(const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints,
- const void *sptr, asn_per_outp_t *po) {
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const asn_per_constraints_t *pc = constraints ? constraints
- : td->encoding_constraints.per_constraints;
- const asn_per_constraint_t *cval;
- const asn_per_constraint_t *csiz;
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- asn_enc_rval_t er = { 0, 0, 0 };
- int inext = 0; /* Lies not within extension root */
- unsigned int unit_bits;
- unsigned int canonical_unit_bits;
- size_t size_in_units;
- const uint8_t *buf;
- int ret;
- enum {
- OS__BPC_CHAR = 1,
- OS__BPC_U16 = 2,
- OS__BPC_U32 = 4
- } bpc; /* Bytes per character */
- int ct_extensible;
-
- if(!st || (!st->buf && st->size))
- ASN__ENCODE_FAILED;
-
- if(pc) {
- cval = &pc->value;
- csiz = &pc->size;
- } else {
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- }
- ct_extensible = csiz->flags & APC_EXTENSIBLE;
-
- switch(specs->subvariant) {
- default:
- case ASN_OSUBV_ANY:
- case ASN_OSUBV_BIT:
- ASN__ENCODE_FAILED;
- case ASN_OSUBV_STR:
- canonical_unit_bits = unit_bits = 8;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_CHAR;
- size_in_units = st->size;
- break;
- case ASN_OSUBV_U16:
- canonical_unit_bits = unit_bits = 16;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U16;
- size_in_units = st->size >> 1;
- if(st->size & 1) {
- ASN_DEBUG("%s string size is not modulo 2", td->name);
- ASN__ENCODE_FAILED;
- }
- break;
- case ASN_OSUBV_U32:
- canonical_unit_bits = unit_bits = 32;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U32;
- size_in_units = st->size >> 2;
- if(st->size & 3) {
- ASN_DEBUG("%s string size is not modulo 4", td->name);
- ASN__ENCODE_FAILED;
- }
- break;
- }
-
- ASN_DEBUG("Encoding %s into %" ASN_PRI_SIZE " units of %d bits"
- " (%ld..%ld, effective %d)%s",
- td->name, size_in_units, unit_bits,
- csiz->lower_bound, csiz->upper_bound,
- csiz->effective_bits, ct_extensible ? " EXT" : "");
-
- /* Figure out whether size lies within PER visible constraint */
-
- if(csiz->effective_bits >= 0) {
- if((ssize_t)size_in_units < csiz->lower_bound
- || (ssize_t)size_in_units > csiz->upper_bound) {
- if(ct_extensible) {
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- unit_bits = canonical_unit_bits;
- inext = 1;
- } else {
- ASN__ENCODE_FAILED;
- }
- }
- } else {
- inext = 0;
- }
-
- if(ct_extensible) {
- /* Declare whether length is [not] within extension root */
- if(per_put_few_bits(po, inext, 1))
- ASN__ENCODE_FAILED;
- }
-
- if(csiz->effective_bits >= 0 && !inext) {
- ASN_DEBUG("Encoding %" ASN_PRI_SIZE " bytes (%ld), length in %d bits", st->size,
- size_in_units - csiz->lower_bound, csiz->effective_bits);
- ret = per_put_few_bits(po, size_in_units - csiz->lower_bound,
- csiz->effective_bits);
- if(ret) ASN__ENCODE_FAILED;
- ret = OCTET_STRING_per_put_characters(po, st->buf, size_in_units, bpc,
- unit_bits, cval->lower_bound,
- cval->upper_bound, pc);
- if(ret) ASN__ENCODE_FAILED;
- ASN__ENCODED_OK(er);
- }
-
- ASN_DEBUG("Encoding %" ASN_PRI_SIZE " bytes", st->size);
-
- buf = st->buf;
- ASN_DEBUG("Encoding %" ASN_PRI_SIZE " in units", size_in_units);
- do {
- int need_eom = 0;
- ssize_t may_save = uper_put_length(po, size_in_units, &need_eom);
- if(may_save < 0) ASN__ENCODE_FAILED;
-
- ASN_DEBUG("Encoding %" ASN_PRI_SSIZE " of %" ASN_PRI_SIZE "%s", may_save, size_in_units,
- need_eom ? ",+EOM" : "");
-
- ret = OCTET_STRING_per_put_characters(po, buf, may_save, bpc, unit_bits,
- cval->lower_bound,
- cval->upper_bound, pc);
- if(ret) ASN__ENCODE_FAILED;
-
- buf += may_save * bpc;
- size_in_units -= may_save;
- assert(!(may_save & 0x07) || !size_in_units);
- if(need_eom && uper_put_length(po, 0, 0))
- ASN__ENCODE_FAILED; /* End of Message length */
- } while(size_in_units);
-
- ASN__ENCODED_OK(er);
-}
-
-asn_dec_rval_t
-OCTET_STRING_decode_aper(const asn_codec_ctx_t *opt_codec_ctx,
- const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints,
- void **sptr, asn_per_data_t *pd) {
-
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const asn_per_constraints_t *pc = constraints ? constraints
- : td->encoding_constraints.per_constraints;
- const asn_per_constraint_t *cval;
- const asn_per_constraint_t *csiz;
- asn_dec_rval_t rval = { RC_OK, 0 };
- BIT_STRING_t *st = (BIT_STRING_t *)*sptr;
- ssize_t consumed_myself = 0;
- int repeat;
- enum {
- OS__BPC_BIT = 0,
- OS__BPC_CHAR = 1,
- OS__BPC_U16 = 2,
- OS__BPC_U32 = 4
- } bpc; /* Bytes per character */
- unsigned int unit_bits;
- unsigned int canonical_unit_bits;
-
- (void)opt_codec_ctx;
-
- if(pc) {
- cval = &pc->value;
- csiz = &pc->size;
- } else {
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- }
-
- switch(specs->subvariant) {
- default:
-/* case ASN_OSUBV_ANY:
- ASN_DEBUG("Unrecognized subvariant %d", specs->subvariant);
- RETURN(RC_FAIL);
-*/
- case ASN_OSUBV_BIT:
- canonical_unit_bits = unit_bits = 1;
- bpc = OS__BPC_BIT;
- break;
- case ASN_OSUBV_ANY:
- case ASN_OSUBV_STR:
- canonical_unit_bits = unit_bits = 8;
-/* if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
-*/
- bpc = OS__BPC_CHAR;
- break;
- case ASN_OSUBV_U16:
- canonical_unit_bits = unit_bits = 16;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U16;
- break;
- case ASN_OSUBV_U32:
- canonical_unit_bits = unit_bits = 32;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U32;
- break;
- }
-
- /*
- * Allocate the string.
- */
- if(!st) {
- st = (BIT_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(!st) RETURN(RC_FAIL);
- }
-
- ASN_DEBUG("PER Decoding %s size %ld .. %ld bits %d",
- csiz->flags & APC_EXTENSIBLE ? "extensible" : "non-extensible",
- csiz->lower_bound, csiz->upper_bound, csiz->effective_bits);
-
- if(csiz->flags & APC_EXTENSIBLE) {
- int inext = per_get_few_bits(pd, 1);
- if(inext < 0) RETURN(RC_WMORE);
- if(inext) {
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- unit_bits = canonical_unit_bits;
- }
- }
-
- if(csiz->effective_bits >= 0) {
- FREEMEM(st->buf);
- if(bpc) {
- st->size = csiz->upper_bound * bpc;
- } else {
- st->size = (csiz->upper_bound + 7) >> 3;
- }
- st->buf = (uint8_t *)MALLOC(st->size + 1);
- if(!st->buf) { st->size = 0; RETURN(RC_FAIL); }
- }
-
- /* X.691, #16.5: zero-length encoding */
- /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
- /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(csiz->effective_bits == 0) {
- int ret;
- if (st->size > 2) { /* X.691 #16 NOTE 1 */
- if (aper_get_align(pd) < 0)
- RETURN(RC_FAIL);
- }
- if(bpc) {
- ASN_DEBUG("Decoding OCTET STRING size %ld",
- csiz->upper_bound);
- ret = OCTET_STRING_per_get_characters(pd, st->buf,
- csiz->upper_bound, bpc, unit_bits,
- cval->lower_bound, cval->upper_bound, pc);
- if(ret > 0) RETURN(RC_FAIL);
- } else {
- ASN_DEBUG("Decoding BIT STRING size %ld",
- csiz->upper_bound);
- ret = per_get_many_bits(pd, st->buf, 0,
- unit_bits * csiz->upper_bound);
- }
- if(ret < 0) RETURN(RC_WMORE);
- consumed_myself += unit_bits * csiz->upper_bound;
- st->buf[st->size] = 0;
- if(bpc == 0) {
- int ubs = (csiz->upper_bound & 0x7);
- st->bits_unused = ubs ? 8 - ubs : 0;
- }
- RETURN(RC_OK);
- }
-
- st->size = 0;
- do {
- ssize_t raw_len;
- ssize_t len_bytes;
- ssize_t len_bits;
- void *p;
- int ret;
-
- /* Get the PER length */
- if (csiz->upper_bound - csiz->lower_bound == 0)
- /* Indefinite length case */
- raw_len = aper_get_length(pd, -1, csiz->effective_bits, &repeat);
- else
- raw_len = aper_get_length(pd, csiz->upper_bound - csiz->lower_bound + 1, csiz->effective_bits, &repeat);
- repeat = 0;
- if(raw_len < 0) RETURN(RC_WMORE);
- raw_len += csiz->lower_bound;
-
- ASN_DEBUG("Got PER length eb %ld, len %ld, %s (%s)",
- (long)csiz->effective_bits, (long)raw_len,
- repeat ? "repeat" : "once", td->name);
-
- if (raw_len > 2) { /* X.691 #16 NOTE 1 */
- if (aper_get_align(pd) < 0)
- RETURN(RC_FAIL);
- }
-
- if(bpc) {
- len_bytes = raw_len * bpc;
- len_bits = len_bytes * unit_bits;
- } else {
- len_bits = raw_len;
- len_bytes = (len_bits + 7) >> 3;
- if(len_bits & 0x7)
- st->bits_unused = 8 - (len_bits & 0x7);
- /* len_bits be multiple of 16K if repeat is set */
- }
- p = REALLOC(st->buf, st->size + len_bytes + 1);
- if(!p) RETURN(RC_FAIL);
- st->buf = (uint8_t *)p;
-
- if(bpc) {
- ret = OCTET_STRING_per_get_characters(pd,
- &st->buf[st->size], raw_len, bpc, unit_bits,
- cval->lower_bound, cval->upper_bound, pc);
- if(ret > 0) RETURN(RC_FAIL);
- } else {
- ret = per_get_many_bits(pd, &st->buf[st->size],
- 0, len_bits);
- }
- if(ret < 0) RETURN(RC_WMORE);
- st->size += len_bytes;
- } while(repeat);
- st->buf[st->size] = 0; /* nul-terminate */
-
- return rval;
-}
-
-asn_enc_rval_t
-OCTET_STRING_encode_aper(const asn_TYPE_descriptor_t *td,
- const asn_per_constraints_t *constraints,
- const void *sptr, asn_per_outp_t *po) {
-
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- const asn_per_constraints_t *pc = constraints ? constraints
- : td->encoding_constraints.per_constraints;
- const asn_per_constraint_t *cval;
- const asn_per_constraint_t *csiz;
- const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
- asn_enc_rval_t er = { 0, 0, 0 };
- int inext = 0; /* Lies not within extension root */
- unsigned int unit_bits;
- unsigned int canonical_unit_bits;
- unsigned int sizeinunits;
- const uint8_t *buf;
- int ret;
- enum {
- OS__BPC_BIT = 0,
- OS__BPC_CHAR = 1,
- OS__BPC_U16 = 2,
- OS__BPC_U32 = 4
- } bpc; /* Bytes per character */
- int ct_extensible;
-
- if(!st || (!st->buf && st->size))
- ASN__ENCODE_FAILED;
-
- if(pc) {
- cval = &pc->value;
- csiz = &pc->size;
- } else {
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- }
- ct_extensible = csiz->flags & APC_EXTENSIBLE;
-
- switch(specs->subvariant) {
- default:
- /* case ASN_OSUBV_ANY:
- ASN__ENCODE_FAILED;
- */
- case ASN_OSUBV_BIT:
- canonical_unit_bits = unit_bits = 1;
- bpc = OS__BPC_BIT;
- sizeinunits = st->size * 8 - (st->bits_unused & 0x07);
- ASN_DEBUG("BIT STRING of %d bytes",
- sizeinunits);
- break;
- case ASN_OSUBV_ANY:
- case ASN_OSUBV_STR:
- canonical_unit_bits = unit_bits = 8;
-/* if(cval->flags & APC_CONSTRAINED)
- unit_bits = 8;
-*/
- bpc = OS__BPC_CHAR;
- sizeinunits = st->size;
- break;
- case ASN_OSUBV_U16:
- canonical_unit_bits = unit_bits = 16;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U16;
- sizeinunits = st->size / 2;
- break;
- case ASN_OSUBV_U32:
- canonical_unit_bits = unit_bits = 32;
- if(cval->flags & APC_CONSTRAINED)
- unit_bits = cval->range_bits;
- bpc = OS__BPC_U32;
- sizeinunits = st->size / 4;
- break;
- }
-
- ASN_DEBUG("Encoding %s into %d units of %d bits"
- " (%ld..%ld, effective %d)%s",
- td->name, sizeinunits, unit_bits,
- csiz->lower_bound, csiz->upper_bound,
- csiz->effective_bits, ct_extensible ? " EXT" : "");
-
- /* Figure out wheter size lies within PER visible constraint */
-
- if(csiz->effective_bits >= 0) {
- if((int)sizeinunits < csiz->lower_bound
- || (int)sizeinunits > csiz->upper_bound) {
- if(ct_extensible) {
- cval = &asn_DEF_OCTET_STRING_constraints.value;
- csiz = &asn_DEF_OCTET_STRING_constraints.size;
- unit_bits = canonical_unit_bits;
- inext = 1;
- } else
- ASN__ENCODE_FAILED;
- }
- } else {
- inext = 0;
- }
-
-
- if(ct_extensible) {
- /* Declare whether length is [not] within extension root */
- if(per_put_few_bits(po, inext, 1))
- ASN__ENCODE_FAILED;
- }
-
- /* X.691, #16.5: zero-length encoding */
- /* X.691, #16.6: short fixed length encoding (up to 2 octets) */
- /* X.691, #16.7: long fixed length encoding (up to 64K octets) */
- if(csiz->effective_bits >= 0) {
- ASN_DEBUG("Encoding %lu bytes (%ld), length in %d bits",
- st->size, sizeinunits - csiz->lower_bound,
- csiz->effective_bits);
- if (csiz->effective_bits > 0) {
- ret = aper_put_length(po, csiz->upper_bound - csiz->lower_bound + 1, sizeinunits - csiz->lower_bound);
- if(ret) ASN__ENCODE_FAILED;
- }
- /* EB MOD
- AFAIU if lb != ub it is aligned whatever the number of bits */
- if ((st->size > 2) || (csiz->lower_bound != csiz->upper_bound)) { /* X.691 #16.11 */
- if (aper_put_align(po) < 0)
- ASN__ENCODE_FAILED;
- }
- if(bpc) {
- ret = OCTET_STRING_per_put_characters(po, st->buf,
- sizeinunits, bpc, unit_bits,
- cval->lower_bound, cval->upper_bound, pc);
- } else {
- ret = per_put_many_bits(po, st->buf,
- sizeinunits * unit_bits);
- }
- if(ret) ASN__ENCODE_FAILED;
- ASN__ENCODED_OK(er);
- }
-
- ASN_DEBUG("Encoding %lu bytes", st->size);
-
- if(sizeinunits == 0) {
- if(aper_put_length(po, -1, 0))
- ASN__ENCODE_FAILED;
- ASN__ENCODED_OK(er);
- }
-
- buf = st->buf;
- while(sizeinunits) {
- ssize_t maySave = aper_put_length(po, -1, sizeinunits);
-
- if(maySave < 0) ASN__ENCODE_FAILED;
-
- ASN_DEBUG("Encoding %ld of %ld",
- (long)maySave, (long)sizeinunits);
-
- if(bpc) {
- ret = OCTET_STRING_per_put_characters(po, buf,
- maySave, bpc, unit_bits,
- cval->lower_bound, cval->upper_bound, pc);
- } else {
- ret = per_put_many_bits(po, buf, maySave * unit_bits);
- }
- if(ret) ASN__ENCODE_FAILED;
-
- if(bpc)
- buf += maySave * bpc;
- else
- buf += maySave >> 3;
- sizeinunits -= maySave;
- assert(!(maySave & 0x07) || !sizeinunits);
- }
-
- ASN__ENCODED_OK(er);
-}
-
-#endif /* ASN_DISABLE_PER_SUPPORT */
-
-int
-OCTET_STRING_print(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
- const char * const h2c = "0123456789ABCDEF";
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
- char scratch[16 * 3 + 4];
- char *p = scratch;
- uint8_t *buf;
- uint8_t *end;
- size_t i;
-
- (void)td; /* Unused argument */
-
- if(!st || (!st->buf && st->size))
- return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
-
- /*
- * Dump the contents of the buffer in hexadecimal.
- */
- buf = st->buf;
- end = buf + st->size;
- for(i = 0; buf < end; buf++, i++) {
- if(!(i % 16) && (i || st->size > 16)) {
- if(cb(scratch, p - scratch, app_key) < 0)
- return -1;
- _i_INDENT(1);
- p = scratch;
- }
- *p++ = h2c[(*buf >> 4) & 0x0F];
- *p++ = h2c[*buf & 0x0F];
- *p++ = 0x20;
- }
-
- if(p > scratch) {
- p--; /* Remove the tail space */
- if(cb(scratch, p - scratch, app_key) < 0)
- return -1;
- }
-
- return 0;
-}
-
-int
-OCTET_STRING_print_utf8(const asn_TYPE_descriptor_t *td, const void *sptr,
- int ilevel, asn_app_consume_bytes_f *cb,
- void *app_key) {
- const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
-
- (void)td; /* Unused argument */
- (void)ilevel; /* Unused argument */
-
- if(st && (st->buf || !st->size)) {
- return (cb(st->buf, st->size, app_key) < 0) ? -1 : 0;
- } else {
- return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
- }
-}
-
-void
-OCTET_STRING_free(const asn_TYPE_descriptor_t *td, void *sptr,
- enum asn_struct_free_method method) {
- OCTET_STRING_t *st = (OCTET_STRING_t *)sptr;
- const asn_OCTET_STRING_specifics_t *specs;
- asn_struct_ctx_t *ctx;
- struct _stack *stck;
-
- if(!td || !st)
- return;
-
- specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
-
- ASN_DEBUG("Freeing %s as OCTET STRING", td->name);
-
- if(st->buf) {
- FREEMEM(st->buf);
- st->buf = 0;
- }
-
- /*
- * Remove decode-time stack.
- */
- stck = (struct _stack *)ctx->ptr;
- if(stck) {
- while(stck->tail) {
- struct _stack_el *sel = stck->tail;
- stck->tail = sel->prev;
- FREEMEM(sel);
- }
- FREEMEM(stck);
- }
-
- switch(method) {
- case ASFM_FREE_EVERYTHING:
- FREEMEM(sptr);
- break;
- case ASFM_FREE_UNDERLYING:
- break;
- case ASFM_FREE_UNDERLYING_AND_RESET:
- memset(sptr, 0,
- td->specifics
- ? ((const asn_OCTET_STRING_specifics_t *)(td->specifics))
- ->struct_size
- : sizeof(OCTET_STRING_t));
- break;
- }
-}
-
-/*
- * Conversion routines.
- */
-int
-OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) {
- void *buf;
-
- if(st == 0 || (str == 0 && len)) {
- errno = EINVAL;
- return -1;
- }
-
- /*
- * Clear the OCTET STRING.
- */
- if(str == NULL) {
- FREEMEM(st->buf);
- st->buf = 0;
- st->size = 0;
- return 0;
- }
-
- /* Determine the original string size, if not explicitly given */
- if(len < 0)
- len = strlen(str);
-
- /* Allocate and fill the memory */
- buf = MALLOC(len + 1);
- if(buf == NULL)
- return -1;
-
- memcpy(buf, str, len);
- ((uint8_t *)buf)[len] = '\0'; /* Couldn't use memcpy(len+1)! */
- FREEMEM(st->buf);
- st->buf = (uint8_t *)buf;
- st->size = len;
-
- return 0;
-}
-
-OCTET_STRING_t *
-OCTET_STRING_new_fromBuf(const asn_TYPE_descriptor_t *td, const char *str,
- int len) {
- const asn_OCTET_STRING_specifics_t *specs =
- td->specifics ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- OCTET_STRING_t *st;
-
- st = (OCTET_STRING_t *)CALLOC(1, specs->struct_size);
- if(st && str && OCTET_STRING_fromBuf(st, str, len)) {
- FREEMEM(st);
- st = NULL;
- }
-
- return st;
-}
-
-/*
- * Lexicographically compare the common prefix of both strings,
- * and if it is the same return -1 for the smallest string.
- */
-int
-OCTET_STRING_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
- const void *bptr) {
- const asn_OCTET_STRING_specifics_t *specs = td->specifics;
- const OCTET_STRING_t *a = aptr;
- const OCTET_STRING_t *b = bptr;
-
- assert(!specs || specs->subvariant != ASN_OSUBV_BIT);
-
- if(a && b) {
- size_t common_prefix_size = a->size <= b->size ? a->size : b->size;
- int ret = memcmp(a->buf, b->buf, common_prefix_size);
- if(ret == 0) {
- /* Figure out which string with equal prefixes is longer. */
- if(a->size < b->size) {
- return -1;
- } else if(a->size > b->size) {
- return 1;
- } else {
- return 0;
- }
- } else {
- return ret < 0 ? -1 : 1;
- }
- } else if(!a && !b) {
- return 0;
- } else if(!a) {
- return -1;
- } else {
- return 1;
- }
-
-}
-
-/*
- * Biased function for randomizing character values around their limits.
- */
-static uint32_t
-OCTET_STRING__random_char(unsigned long lb, unsigned long ub) {
- assert(lb <= ub);
- switch(asn_random_between(0, 16)) {
- case 0:
- if(lb < ub) return lb + 1;
- /* Fall through */
- case 1:
- return lb;
- case 2:
- if(lb < ub) return ub - 1;
- /* Fall through */
- case 3:
- return ub;
- default:
- return asn_random_between(lb, ub);
- }
-}
-
-
-size_t
-OCTET_STRING_random_length_constrained(
- const asn_TYPE_descriptor_t *td,
- const asn_encoding_constraints_t *constraints, size_t max_length) {
- const unsigned lengths[] = {0, 1, 2, 3, 4, 8,
- 126, 127, 128, 16383, 16384, 16385,
- 65534, 65535, 65536, 65537};
- size_t rnd_len;
-
- /* Figure out how far we should go */
- rnd_len = lengths[asn_random_between(
- 0, sizeof(lengths) / sizeof(lengths[0]) - 1)];
-
- if(!constraints || !constraints->per_constraints)
- constraints = &td->encoding_constraints;
- if(constraints->per_constraints) {
- const asn_per_constraint_t *pc = &constraints->per_constraints->size;
- if(pc->flags & APC_CONSTRAINED) {
- long suggested_upper_bound = pc->upper_bound < (ssize_t)max_length
- ? pc->upper_bound
- : (ssize_t)max_length;
- if(max_length <= (size_t)pc->lower_bound) {
- return pc->lower_bound;
- }
- if(pc->flags & APC_EXTENSIBLE) {
- switch(asn_random_between(0, 5)) {
- case 0:
- if(pc->lower_bound > 0) {
- rnd_len = pc->lower_bound - 1;
- break;
- }
- /* Fall through */
- case 1:
- rnd_len = pc->upper_bound + 1;
- break;
- case 2:
- /* Keep rnd_len from the table */
- if(rnd_len <= max_length) {
- break;
- }
- /* Fall through */
- default:
- rnd_len = asn_random_between(pc->lower_bound,
- suggested_upper_bound);
- }
- } else {
- rnd_len =
- asn_random_between(pc->lower_bound, suggested_upper_bound);
- }
- } else {
- rnd_len = asn_random_between(0, max_length);
- }
- } else if(rnd_len > max_length) {
- rnd_len = asn_random_between(0, max_length);
- }
-
- return rnd_len;
-}
-
-asn_random_fill_result_t
-OCTET_STRING_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
- const asn_encoding_constraints_t *constraints,
- size_t max_length) {
- const asn_OCTET_STRING_specifics_t *specs = td->specifics
- ? (const asn_OCTET_STRING_specifics_t *)td->specifics
- : &asn_SPC_OCTET_STRING_specs;
- asn_random_fill_result_t result_ok = {ARFILL_OK, 1};
- asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
- asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
- unsigned int unit_bytes = 1;
- unsigned long clb = 0; /* Lower bound on char */
- unsigned long cub = 255; /* Higher bound on char value */
- uint8_t *buf;
- uint8_t *bend;
- uint8_t *b;
- size_t rnd_len;
- OCTET_STRING_t *st;
-
- if(max_length == 0 && !*sptr) return result_skipped;
-
- switch(specs->subvariant) {
- default:
- case ASN_OSUBV_ANY:
- return result_failed;
- case ASN_OSUBV_BIT:
- /* Handled by BIT_STRING itself. */
- return result_failed;
- case ASN_OSUBV_STR:
- unit_bytes = 1;
- clb = 0;
- cub = 255;
- break;
- case ASN_OSUBV_U16:
- unit_bytes = 2;
- clb = 0;
- cub = 65535;
- break;
- case ASN_OSUBV_U32:
- unit_bytes = 4;
- clb = 0;
- cub = 0x10FFFF;
- break;
- }
-
- if(!constraints || !constraints->per_constraints)
- constraints = &td->encoding_constraints;
- if(constraints->per_constraints) {
- const asn_per_constraint_t *pc = &constraints->per_constraints->value;
- if(pc->flags & APC_SEMI_CONSTRAINED) {
- clb = pc->lower_bound;
- } else if(pc->flags & APC_CONSTRAINED) {
- clb = pc->lower_bound;
- cub = pc->upper_bound;
- }
- }
-
- rnd_len =
- OCTET_STRING_random_length_constrained(td, constraints, max_length);
-
- buf = CALLOC(unit_bytes, rnd_len + 1);
- if(!buf) return result_failed;
-
- bend = &buf[unit_bytes * rnd_len];
-
- switch(unit_bytes) {
- case 1:
- for(b = buf; b < bend; b += unit_bytes) {
- *(uint8_t *)b = OCTET_STRING__random_char(clb, cub);
- }
- *(uint8_t *)b = 0;
- break;
- case 2:
- for(b = buf; b < bend; b += unit_bytes) {
- uint32_t code = OCTET_STRING__random_char(clb, cub);
- b[0] = code >> 8;
- b[1] = code;
- }
- *(uint16_t *)b = 0;
- break;
- case 4:
- for(b = buf; b < bend; b += unit_bytes) {
- uint32_t code = OCTET_STRING__random_char(clb, cub);
- b[0] = code >> 24;
- b[1] = code >> 16;
- b[2] = code >> 8;
- b[3] = code;
- }
- *(uint32_t *)b = 0;
- break;
- }
-
- if(*sptr) {
- st = *sptr;
- FREEMEM(st->buf);
- } else {
- st = (OCTET_STRING_t *)(*sptr = CALLOC(1, specs->struct_size));
- if(!st) {
- FREEMEM(buf);
- return result_failed;
- }
- }
-
- st->buf = buf;
- st->size = unit_bytes * rnd_len;
-
- result_ok.length = st->size;
- return result_ok;
-}