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commit 1a82137a4718bfdde4a41140a5d26ee2d536072d 0 parents
@AlanQuatermain authored
Showing with 12,389 additions and 0 deletions.
  1. +9 −0 README.markdown
  2. +189 −0 asn1/BIT_STRING.c
  3. +33 −0 asn1/BIT_STRING.h
  4. +934 −0 asn1/INTEGER.c
  5. +69 −0 asn1/INTEGER.h
  6. +88 −0 asn1/Makefile.am.sample
  7. +207 −0 asn1/NativeEnumerated.c
  8. +32 −0 asn1/NativeEnumerated.h
  9. +332 −0 asn1/NativeInteger.c
  10. +37 −0 asn1/NativeInteger.h
  11. +1,805 −0 asn1/OCTET_STRING.c
  12. +86 −0 asn1/OCTET_STRING.h
  13. +54 −0 asn1/Payload.c
  14. +43 −0 asn1/Payload.h
  15. +81 −0 asn1/ReceiptAttribute.c
  16. +40 −0 asn1/ReceiptAttribute.h
  17. +88 −0 asn1/asn_SET_OF.c
  18. +62 −0 asn1/asn_SET_OF.h
  19. +47 −0 asn1/asn_application.h
  20. +109 −0 asn1/asn_codecs.h
  21. +295 −0 asn1/asn_codecs_prim.c
  22. +53 −0 asn1/asn_codecs_prim.h
  23. +119 −0 asn1/asn_internal.h
  24. +129 −0 asn1/asn_system.h
  25. +283 −0 asn1/ber_decoder.c
  26. +64 −0 asn1/ber_decoder.h
  27. +178 −0 asn1/ber_tlv_length.c
  28. +50 −0 asn1/ber_tlv_length.h
  29. +144 −0 asn1/ber_tlv_tag.c
  30. +60 −0 asn1/ber_tlv_tag.h
  31. +1,423 −0 asn1/constr_SEQUENCE.c
  32. +60 −0 asn1/constr_SEQUENCE.h
  33. +953 −0 asn1/constr_SET_OF.c
  34. +42 −0 asn1/constr_SET_OF.h
  35. +77 −0 asn1/constr_TYPE.c
  36. +180 −0 asn1/constr_TYPE.h
  37. +93 −0 asn1/constraints.c
  38. +63 −0 asn1/constraints.h
  39. +834 −0 asn1/converter-sample.c
  40. +199 −0 asn1/der_encoder.c
  41. +68 −0 asn1/der_encoder.h
  42. +12 −0 asn1/module.asn1
  43. +93 −0 asn1/per_decoder.c
  44. +56 −0 asn1/per_decoder.h
  45. +151 −0 asn1/per_encoder.c
  46. +69 −0 asn1/per_encoder.h
  47. +373 −0 asn1/per_opentype.c
  48. +22 −0 asn1/per_opentype.h
  49. +425 −0 asn1/per_support.c
  50. +128 −0 asn1/per_support.h
  51. +363 −0 asn1/xer_decoder.c
  52. +106 −0 asn1/xer_decoder.h
  53. +67 −0 asn1/xer_encoder.c
  54. +59 −0 asn1/xer_encoder.h
  55. +233 −0 asn1/xer_support.c
  56. +55 −0 asn1/xer_support.h
  57. +86 −0 ethernet.c
  58. +46 −0 ethernet.h
  59. +333 −0 main.m
9 README.markdown
@@ -0,0 +1,9 @@
+= Mac App Store Validation
+
+The code here is based upon the [documentation released by Apple][docs]. It's been de-obfuscated somewhat, but still has enough to give an idea of how one might take it further. The code in the `asn1` folder was generated using the `asn1c` tool using the definitions on the aforementioned Apple document.
+
+It validates the package receipt and will check the contents of that receipt against its own Info.plist as well as ensuring it has a valid digest for the current machine. In order to protect the Info.plist it also check the app's code signature, since modifications to that file will invalidate the signature.
+
+This implementation isn't guaranteed to be perfect by any means, but it ought to be better than nothing.
+
+[docs]: https://developer.apple.com/devcenter/mac/documents/validating.html
189 asn1/BIT_STRING.c
@@ -0,0 +1,189 @@
+/*-
+ * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <BIT_STRING.h>
+#include <asn_internal.h>
+
+/*
+ * BIT STRING basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_BIT_STRING_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (3 << 2))
+};
+static asn_OCTET_STRING_specifics_t asn_DEF_BIT_STRING_specs = {
+ sizeof(BIT_STRING_t),
+ offsetof(BIT_STRING_t, _asn_ctx),
+ ASN_OSUBV_BIT
+};
+asn_TYPE_descriptor_t asn_DEF_BIT_STRING = {
+ "BIT STRING",
+ "BIT_STRING",
+ OCTET_STRING_free, /* Implemented in terms of OCTET STRING */
+ BIT_STRING_print,
+ BIT_STRING_constraint,
+ OCTET_STRING_decode_ber, /* Implemented in terms of OCTET STRING */
+ OCTET_STRING_encode_der, /* Implemented in terms of OCTET STRING */
+ OCTET_STRING_decode_xer_binary,
+ BIT_STRING_encode_xer,
+ OCTET_STRING_decode_uper, /* Unaligned PER decoder */
+ OCTET_STRING_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_BIT_STRING_tags,
+ sizeof(asn_DEF_BIT_STRING_tags)
+ / sizeof(asn_DEF_BIT_STRING_tags[0]),
+ asn_DEF_BIT_STRING_tags, /* Same as above */
+ sizeof(asn_DEF_BIT_STRING_tags)
+ / sizeof(asn_DEF_BIT_STRING_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ &asn_DEF_BIT_STRING_specs
+};
+
+/*
+ * BIT STRING generic constraint.
+ */
+int
+BIT_STRING_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
+ asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+ const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
+
+ if(st && st->buf) {
+ if((st->size == 0 && st->bits_unused)
+ || st->bits_unused < 0 || st->bits_unused > 7) {
+ _ASN_CTFAIL(app_key, td, sptr,
+ "%s: invalid padding byte (%s:%d)",
+ td->name, __FILE__, __LINE__);
+ return -1;
+ }
+ } else {
+ _ASN_CTFAIL(app_key, td, sptr,
+ "%s: value not given (%s:%d)",
+ td->name, __FILE__, __LINE__);
+ return -1;
+ }
+
+ return 0;
+}
+
+static char *_bit_pattern[16] = {
+ "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111",
+ "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"
+};
+
+asn_enc_rval_t
+BIT_STRING_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_enc_rval_t er;
+ char scratch[128];
+ char *p = scratch;
+ char *scend = scratch + (sizeof(scratch) - 10);
+ const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
+ int xcan = (flags & XER_F_CANONICAL);
+ uint8_t *buf;
+ uint8_t *end;
+
+ if(!st || !st->buf)
+ _ASN_ENCODE_FAILED;
+
+ er.encoded = 0;
+
+ buf = st->buf;
+ end = buf + st->size - 1; /* Last byte is special */
+
+ /*
+ * Binary dump
+ */
+ for(; buf < end; buf++) {
+ int v = *buf;
+ int nline = xcan?0:(((buf - st->buf) % 8) == 0);
+ if(p >= scend || nline) {
+ er.encoded += p - scratch;
+ _ASN_CALLBACK(scratch, p - scratch);
+ p = scratch;
+ if(nline) _i_ASN_TEXT_INDENT(1, ilevel);
+ }
+ memcpy(p + 0, _bit_pattern[v >> 4], 4);
+ memcpy(p + 4, _bit_pattern[v & 0x0f], 4);
+ p += 8;
+ }
+
+ if(!xcan && ((buf - st->buf) % 8) == 0)
+ _i_ASN_TEXT_INDENT(1, ilevel);
+ er.encoded += p - scratch;
+ _ASN_CALLBACK(scratch, p - scratch);
+ p = scratch;
+
+ if(buf == end) {
+ int v = *buf;
+ int ubits = st->bits_unused;
+ int i;
+ for(i = 7; i >= ubits; i--)
+ *p++ = (v & (1 << i)) ? 0x31 : 0x30;
+ er.encoded += p - scratch;
+ _ASN_CALLBACK(scratch, p - scratch);
+ }
+
+ if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1);
+
+ _ASN_ENCODED_OK(er);
+cb_failed:
+ _ASN_ENCODE_FAILED;
+}
+
+
+/*
+ * BIT STRING specific contents printer.
+ */
+int
+BIT_STRING_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ static const char *h2c = "0123456789ABCDEF";
+ char scratch[64];
+ const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
+ uint8_t *buf;
+ uint8_t *end;
+ char *p = scratch;
+
+ (void)td; /* Unused argument */
+
+ if(!st || !st->buf)
+ return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
+
+ ilevel++;
+ buf = st->buf;
+ end = buf + st->size;
+
+ /*
+ * Hexadecimal dump.
+ */
+ for(; buf < end; buf++) {
+ if((buf - st->buf) % 16 == 0 && (st->size > 16)
+ && buf != st->buf) {
+ _i_INDENT(1);
+ /* Dump the string */
+ if(cb(scratch, p - scratch, app_key) < 0) return -1;
+ p = scratch;
+ }
+ *p++ = h2c[*buf >> 4];
+ *p++ = h2c[*buf & 0x0F];
+ *p++ = 0x20;
+ }
+
+ if(p > scratch) {
+ p--; /* Eat the tailing space */
+
+ if((st->size > 16)) {
+ _i_INDENT(1);
+ }
+
+ /* Dump the incomplete 16-bytes row */
+ if(cb(scratch, p - scratch, app_key) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
33 asn1/BIT_STRING.h
@@ -0,0 +1,33 @@
+/*-
+ * Copyright (c) 2003 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef _BIT_STRING_H_
+#define _BIT_STRING_H_
+
+#include <OCTET_STRING.h> /* Some help from OCTET STRING */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct BIT_STRING_s {
+ uint8_t *buf; /* BIT STRING body */
+ int size; /* Size of the above buffer */
+
+ int bits_unused;/* Unused trailing bits in the last octet (0..7) */
+
+ asn_struct_ctx_t _asn_ctx; /* Parsing across buffer boundaries */
+} BIT_STRING_t;
+
+extern asn_TYPE_descriptor_t asn_DEF_BIT_STRING;
+
+asn_struct_print_f BIT_STRING_print; /* Human-readable output */
+asn_constr_check_f BIT_STRING_constraint;
+xer_type_encoder_f BIT_STRING_encode_xer;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _BIT_STRING_H_ */
934 asn1/INTEGER.c
@@ -0,0 +1,934 @@
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <INTEGER.h>
+#include <asn_codecs_prim.h> /* Encoder and decoder of a primitive type */
+#include <errno.h>
+
+/*
+ * INTEGER basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_INTEGER_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
+};
+asn_TYPE_descriptor_t asn_DEF_INTEGER = {
+ "INTEGER",
+ "INTEGER",
+ ASN__PRIMITIVE_TYPE_free,
+ INTEGER_print,
+ asn_generic_no_constraint,
+ ber_decode_primitive,
+ INTEGER_encode_der,
+ INTEGER_decode_xer,
+ INTEGER_encode_xer,
+ INTEGER_decode_uper, /* Unaligned PER decoder */
+ INTEGER_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_INTEGER_tags,
+ sizeof(asn_DEF_INTEGER_tags) / sizeof(asn_DEF_INTEGER_tags[0]),
+ asn_DEF_INTEGER_tags, /* Same as above */
+ sizeof(asn_DEF_INTEGER_tags) / sizeof(asn_DEF_INTEGER_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ 0 /* No specifics */
+};
+
+/*
+ * Encode INTEGER type using DER.
+ */
+asn_enc_rval_t
+INTEGER_encode_der(asn_TYPE_descriptor_t *td, void *sptr,
+ int tag_mode, ber_tlv_tag_t tag,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ INTEGER_t *st = (INTEGER_t *)sptr;
+
+ ASN_DEBUG("%s %s as INTEGER (tm=%d)",
+ cb?"Encoding":"Estimating", td->name, tag_mode);
+
+ /*
+ * Canonicalize integer in the buffer.
+ * (Remove too long sign extension, remove some first 0x00 bytes)
+ */
+ if(st->buf) {
+ uint8_t *buf = st->buf;
+ uint8_t *end1 = buf + st->size - 1;
+ int shift;
+
+ /* Compute the number of superfluous leading bytes */
+ for(; buf < end1; buf++) {
+ /*
+ * If the contents octets of an integer value encoding
+ * consist of more than one octet, then the bits of the
+ * first octet and bit 8 of the second octet:
+ * a) shall not all be ones; and
+ * b) shall not all be zero.
+ */
+ switch(*buf) {
+ case 0x00: if((buf[1] & 0x80) == 0)
+ continue;
+ break;
+ case 0xff: if((buf[1] & 0x80))
+ continue;
+ break;
+ }
+ break;
+ }
+
+ /* Remove leading superfluous bytes from the integer */
+ shift = buf - st->buf;
+ if(shift) {
+ uint8_t *nb = st->buf;
+ uint8_t *end;
+
+ st->size -= shift; /* New size, minus bad bytes */
+ end = nb + st->size;
+
+ for(; nb < end; nb++, buf++)
+ *nb = *buf;
+ }
+
+ } /* if(1) */
+
+ return der_encode_primitive(td, sptr, tag_mode, tag, cb, app_key);
+}
+
+static const asn_INTEGER_enum_map_t *INTEGER_map_enum2value(asn_INTEGER_specifics_t *specs, const char *lstart, const char *lstop);
+
+/*
+ * INTEGER specific human-readable output.
+ */
+static ssize_t
+INTEGER__dump(asn_TYPE_descriptor_t *td, const INTEGER_t *st, asn_app_consume_bytes_f *cb, void *app_key, int plainOrXER) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ char scratch[32]; /* Enough for 64-bit integer */
+ uint8_t *buf = st->buf;
+ uint8_t *buf_end = st->buf + st->size;
+ signed long accum;
+ ssize_t wrote = 0;
+ char *p;
+ int ret;
+
+ /*
+ * Advance buf pointer until the start of the value's body.
+ * This will make us able to process large integers using simple case,
+ * when the actual value is small
+ * (0x0000000000abcdef would yield a fine 0x00abcdef)
+ */
+ /* Skip the insignificant leading bytes */
+ for(; buf < buf_end-1; buf++) {
+ switch(*buf) {
+ case 0x00: if((buf[1] & 0x80) == 0) continue; break;
+ case 0xff: if((buf[1] & 0x80) != 0) continue; break;
+ }
+ break;
+ }
+
+ /* Simple case: the integer size is small */
+ if((size_t)(buf_end - buf) <= sizeof(accum)) {
+ const asn_INTEGER_enum_map_t *el;
+ size_t scrsize;
+ char *scr;
+
+ if(buf == buf_end) {
+ accum = 0;
+ } else {
+ accum = (*buf & 0x80) ? -1 : 0;
+ for(; buf < buf_end; buf++)
+ accum = (accum << 8) | *buf;
+ }
+
+ el = INTEGER_map_value2enum(specs, accum);
+ if(el) {
+ scrsize = el->enum_len + 32;
+ scr = (char *)alloca(scrsize);
+ if(plainOrXER == 0)
+ ret = snprintf(scr, scrsize,
+ "%ld (%s)", accum, el->enum_name);
+ else
+ ret = snprintf(scr, scrsize,
+ "<%s/>", el->enum_name);
+ } else if(plainOrXER && specs && specs->strict_enumeration) {
+ ASN_DEBUG("ASN.1 forbids dealing with "
+ "unknown value of ENUMERATED type");
+ errno = EPERM;
+ return -1;
+ } else {
+ scrsize = sizeof(scratch);
+ scr = scratch;
+ ret = snprintf(scr, scrsize,
+ (specs && specs->field_unsigned)
+ ?"%lu":"%ld", accum);
+ }
+ assert(ret > 0 && (size_t)ret < scrsize);
+ return (cb(scr, ret, app_key) < 0) ? -1 : ret;
+ } else if(plainOrXER && specs && specs->strict_enumeration) {
+ /*
+ * Here and earlier, we cannot encode the ENUMERATED values
+ * if there is no corresponding identifier.
+ */
+ ASN_DEBUG("ASN.1 forbids dealing with "
+ "unknown value of ENUMERATED type");
+ errno = EPERM;
+ return -1;
+ }
+
+ /* Output in the long xx:yy:zz... format */
+ /* TODO: replace with generic algorithm (Knuth TAOCP Vol 2, 4.3.1) */
+ for(p = scratch; buf < buf_end; buf++) {
+ static const char *h2c = "0123456789ABCDEF";
+ if((p - scratch) >= (ssize_t)(sizeof(scratch) - 4)) {
+ /* Flush buffer */
+ if(cb(scratch, p - scratch, app_key) < 0)
+ return -1;
+ wrote += p - scratch;
+ p = scratch;
+ }
+ *p++ = h2c[*buf >> 4];
+ *p++ = h2c[*buf & 0x0F];
+ *p++ = 0x3a; /* ":" */
+ }
+ if(p != scratch)
+ p--; /* Remove the last ":" */
+
+ wrote += p - scratch;
+ return (cb(scratch, p - scratch, app_key) < 0) ? -1 : wrote;
+}
+
+/*
+ * INTEGER specific human-readable output.
+ */
+int
+INTEGER_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ const INTEGER_t *st = (const INTEGER_t *)sptr;
+ ssize_t ret;
+
+ (void)td;
+ (void)ilevel;
+
+ if(!st || !st->buf)
+ ret = cb("<absent>", 8, app_key);
+ else
+ ret = INTEGER__dump(td, st, cb, app_key, 0);
+
+ return (ret < 0) ? -1 : 0;
+}
+
+struct e2v_key {
+ const char *start;
+ const char *stop;
+ asn_INTEGER_enum_map_t *vemap;
+ unsigned int *evmap;
+};
+static int
+INTEGER__compar_enum2value(const void *kp, const void *am) {
+ const struct e2v_key *key = (const struct e2v_key *)kp;
+ const asn_INTEGER_enum_map_t *el = (const asn_INTEGER_enum_map_t *)am;
+ const char *ptr, *end, *name;
+
+ /* Remap the element (sort by different criterion) */
+ el = key->vemap + key->evmap[el - key->vemap];
+
+ /* Compare strings */
+ for(ptr = key->start, end = key->stop, name = el->enum_name;
+ ptr < end; ptr++, name++) {
+ if(*ptr != *name)
+ return *(const unsigned char *)ptr
+ - *(const unsigned char *)name;
+ }
+ return name[0] ? -1 : 0;
+}
+
+static const asn_INTEGER_enum_map_t *
+INTEGER_map_enum2value(asn_INTEGER_specifics_t *specs, const char *lstart, const char *lstop) {
+ asn_INTEGER_enum_map_t *el_found;
+ int count = specs ? specs->map_count : 0;
+ struct e2v_key key;
+ const char *lp;
+
+ if(!count) return NULL;
+
+ /* Guaranteed: assert(lstart < lstop); */
+ /* Figure out the tag name */
+ for(lstart++, lp = lstart; lp < lstop; lp++) {
+ switch(*lp) {
+ case 9: case 10: case 11: case 12: case 13: case 32: /* WSP */
+ case 0x2f: /* '/' */ case 0x3e: /* '>' */
+ break;
+ default:
+ continue;
+ }
+ break;
+ }
+ if(lp == lstop) return NULL; /* No tag found */
+ lstop = lp;
+
+ key.start = lstart;
+ key.stop = lstop;
+ key.vemap = specs->value2enum;
+ key.evmap = specs->enum2value;
+ el_found = (asn_INTEGER_enum_map_t *)bsearch(&key,
+ specs->value2enum, count, sizeof(specs->value2enum[0]),
+ INTEGER__compar_enum2value);
+ if(el_found) {
+ /* Remap enum2value into value2enum */
+ el_found = key.vemap + key.evmap[el_found - key.vemap];
+ }
+ return el_found;
+}
+
+static int
+INTEGER__compar_value2enum(const void *kp, const void *am) {
+ long a = *(const long *)kp;
+ const asn_INTEGER_enum_map_t *el = (const asn_INTEGER_enum_map_t *)am;
+ long b = el->nat_value;
+ if(a < b) return -1;
+ else if(a == b) return 0;
+ else return 1;
+}
+
+const asn_INTEGER_enum_map_t *
+INTEGER_map_value2enum(asn_INTEGER_specifics_t *specs, long value) {
+ int count = specs ? specs->map_count : 0;
+ if(!count) return 0;
+ return (asn_INTEGER_enum_map_t *)bsearch(&value, specs->value2enum,
+ count, sizeof(specs->value2enum[0]),
+ INTEGER__compar_value2enum);
+}
+
+static int
+INTEGER_st_prealloc(INTEGER_t *st, int min_size) {
+ void *p = MALLOC(min_size + 1);
+ if(p) {
+ void *b = st->buf;
+ st->size = 0;
+ st->buf = p;
+ FREEMEM(b);
+ return 0;
+ } else {
+ return -1;
+ }
+}
+
+/*
+ * Decode the chunk of XML text encoding INTEGER.
+ */
+static enum xer_pbd_rval
+INTEGER__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) {
+ INTEGER_t *st = (INTEGER_t *)sptr;
+ long sign = 1;
+ long value;
+ const char *lp;
+ const char *lstart = (const char *)chunk_buf;
+ const char *lstop = lstart + chunk_size;
+ enum {
+ ST_SKIPSPACE,
+ ST_SKIPSPHEX,
+ ST_WAITDIGITS,
+ ST_DIGITS,
+ ST_HEXDIGIT1,
+ ST_HEXDIGIT2,
+ ST_HEXCOLON,
+ ST_EXTRASTUFF
+ } state = ST_SKIPSPACE;
+
+ if(chunk_size)
+ ASN_DEBUG("INTEGER body %ld 0x%2x..0x%2x",
+ (long)chunk_size, *lstart, lstop[-1]);
+
+ /*
+ * We may have received a tag here. It will be processed inline.
+ * Use strtoul()-like code and serialize the result.
+ */
+ for(value = 0, lp = lstart; lp < lstop; lp++) {
+ int lv = *lp;
+ switch(lv) {
+ case 0x09: case 0x0a: case 0x0d: case 0x20:
+ switch(state) {
+ case ST_SKIPSPACE:
+ case ST_SKIPSPHEX:
+ continue;
+ case ST_HEXCOLON:
+ if(xer_is_whitespace(lp, lstop - lp)) {
+ lp = lstop - 1;
+ continue;
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ case 0x2d: /* '-' */
+ if(state == ST_SKIPSPACE) {
+ sign = -1;
+ state = ST_WAITDIGITS;
+ continue;
+ }
+ break;
+ case 0x2b: /* '+' */
+ if(state == ST_SKIPSPACE) {
+ state = ST_WAITDIGITS;
+ continue;
+ }
+ break;
+ case 0x30: case 0x31: case 0x32: case 0x33: case 0x34:
+ case 0x35: case 0x36: case 0x37: case 0x38: case 0x39:
+ switch(state) {
+ case ST_DIGITS: break;
+ case ST_SKIPSPHEX: /* Fall through */
+ case ST_HEXDIGIT1:
+ value = (lv - 0x30) << 4;
+ state = ST_HEXDIGIT2;
+ continue;
+ case ST_HEXDIGIT2:
+ value += (lv - 0x30);
+ state = ST_HEXCOLON;
+ st->buf[st->size++] = (uint8_t)value;
+ continue;
+ case ST_HEXCOLON:
+ return XPBD_BROKEN_ENCODING;
+ default:
+ state = ST_DIGITS;
+ break;
+ }
+
+ {
+ long new_value = value * 10;
+
+ if(new_value / 10 != value)
+ /* Overflow */
+ return XPBD_DECODER_LIMIT;
+
+ value = new_value + (lv - 0x30);
+ /* Check for two's complement overflow */
+ if(value < 0) {
+ /* Check whether it is a LONG_MIN */
+ if(sign == -1
+ && (unsigned long)value
+ == ~((unsigned long)-1 >> 1)) {
+ sign = 1;
+ } else {
+ /* Overflow */
+ return XPBD_DECODER_LIMIT;
+ }
+ }
+ }
+ continue;
+ case 0x3c: /* '<' */
+ if(state == ST_SKIPSPACE) {
+ const asn_INTEGER_enum_map_t *el;
+ el = INTEGER_map_enum2value(
+ (asn_INTEGER_specifics_t *)
+ td->specifics, lstart, lstop);
+ if(el) {
+ ASN_DEBUG("Found \"%s\" => %ld",
+ el->enum_name, el->nat_value);
+ state = ST_DIGITS;
+ value = el->nat_value;
+ lp = lstop - 1;
+ continue;
+ }
+ ASN_DEBUG("Unknown identifier for INTEGER");
+ }
+ return XPBD_BROKEN_ENCODING;
+ case 0x3a: /* ':' */
+ if(state == ST_HEXCOLON) {
+ /* This colon is expected */
+ state = ST_HEXDIGIT1;
+ continue;
+ } else if(state == ST_DIGITS) {
+ /* The colon here means that we have
+ * decoded the first two hexadecimal
+ * places as a decimal value.
+ * Switch decoding mode. */
+ ASN_DEBUG("INTEGER re-evaluate as hex form");
+ if(INTEGER_st_prealloc(st, (chunk_size/3) + 1))
+ return XPBD_SYSTEM_FAILURE;
+ state = ST_SKIPSPHEX;
+ lp = lstart - 1;
+ continue;
+ } else {
+ ASN_DEBUG("state %d at %d", state, lp - lstart);
+ break;
+ }
+ /* [A-Fa-f] */
+ case 0x41:case 0x42:case 0x43:case 0x44:case 0x45:case 0x46:
+ case 0x61:case 0x62:case 0x63:case 0x64:case 0x65:case 0x66:
+ switch(state) {
+ case ST_SKIPSPHEX:
+ case ST_SKIPSPACE: /* Fall through */
+ case ST_HEXDIGIT1:
+ value = lv - ((lv < 0x61) ? 0x41 : 0x61);
+ value += 10;
+ value <<= 4;
+ state = ST_HEXDIGIT2;
+ continue;
+ case ST_HEXDIGIT2:
+ value += lv - ((lv < 0x61) ? 0x41 : 0x61);
+ value += 10;
+ st->buf[st->size++] = (uint8_t)value;
+ state = ST_HEXCOLON;
+ continue;
+ case ST_DIGITS:
+ ASN_DEBUG("INTEGER re-evaluate as hex form");
+ if(INTEGER_st_prealloc(st, (chunk_size/3) + 1))
+ return XPBD_SYSTEM_FAILURE;
+ state = ST_SKIPSPHEX;
+ lp = lstart - 1;
+ continue;
+ default:
+ break;
+ }
+ break;
+ }
+
+ /* Found extra non-numeric stuff */
+ ASN_DEBUG("Found non-numeric 0x%2x at %d",
+ lv, lp - lstart);
+ state = ST_EXTRASTUFF;
+ break;
+ }
+
+ switch(state) {
+ case ST_DIGITS:
+ /* Everything is cool */
+ break;
+ case ST_HEXCOLON:
+ st->buf[st->size] = 0; /* Just in case termination */
+ return XPBD_BODY_CONSUMED;
+ case ST_HEXDIGIT1:
+ case ST_HEXDIGIT2:
+ case ST_SKIPSPHEX:
+ return XPBD_BROKEN_ENCODING;
+ default:
+ if(xer_is_whitespace(lp, lstop - lp)) {
+ if(state != ST_EXTRASTUFF)
+ return XPBD_NOT_BODY_IGNORE;
+ break;
+ } else {
+ ASN_DEBUG("INTEGER: No useful digits (state %d)",
+ state);
+ return XPBD_BROKEN_ENCODING; /* No digits */
+ }
+ break;
+ }
+
+ value *= sign; /* Change sign, if needed */
+
+ if(asn_long2INTEGER(st, value))
+ return XPBD_SYSTEM_FAILURE;
+
+ return XPBD_BODY_CONSUMED;
+}
+
+asn_dec_rval_t
+INTEGER_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname,
+ const void *buf_ptr, size_t size) {
+
+ return xer_decode_primitive(opt_codec_ctx, td,
+ sptr, sizeof(INTEGER_t), opt_mname,
+ buf_ptr, size, INTEGER__xer_body_decode);
+}
+
+asn_enc_rval_t
+INTEGER_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ const INTEGER_t *st = (const INTEGER_t *)sptr;
+ asn_enc_rval_t er;
+
+ (void)ilevel;
+ (void)flags;
+
+ if(!st || !st->buf)
+ _ASN_ENCODE_FAILED;
+
+ er.encoded = INTEGER__dump(td, st, cb, app_key, 1);
+ if(er.encoded < 0) _ASN_ENCODE_FAILED;
+
+ _ASN_ENCODED_OK(er);
+}
+
+asn_dec_rval_t
+INTEGER_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_dec_rval_t rval = { RC_OK, 0 };
+ INTEGER_t *st = (INTEGER_t *)*sptr;
+ asn_per_constraint_t *ct;
+ int repeat;
+
+ (void)opt_codec_ctx;
+
+ if(!st) {
+ st = (INTEGER_t *)(*sptr = CALLOC(1, sizeof(*st)));
+ if(!st) _ASN_DECODE_FAILED;
+ }
+
+ if(!constraints) constraints = td->per_constraints;
+ ct = constraints ? &constraints->value : 0;
+
+ if(ct && ct->flags & APC_EXTENSIBLE) {
+ int inext = per_get_few_bits(pd, 1);
+ if(inext < 0) _ASN_DECODE_STARVED;
+ if(inext) ct = 0;
+ }
+
+ FREEMEM(st->buf);
+ st->buf = 0;
+ st->size = 0;
+ if(ct) {
+ if(ct->flags & APC_SEMI_CONSTRAINED) {
+ st->buf = (uint8_t *)CALLOC(1, 2);
+ if(!st->buf) _ASN_DECODE_FAILED;
+ st->size = 1;
+ } else if(ct->flags & APC_CONSTRAINED && ct->range_bits >= 0) {
+ size_t size = (ct->range_bits + 7) >> 3;
+ st->buf = (uint8_t *)MALLOC(1 + size + 1);
+ if(!st->buf) _ASN_DECODE_FAILED;
+ st->size = size;
+ }
+ }
+
+ /* X.691, #12.2.2 */
+ if(ct && ct->flags != APC_UNCONSTRAINED) {
+ /* #10.5.6 */
+ ASN_DEBUG("Integer with range %d bits", ct->range_bits);
+ if(ct->range_bits >= 0) {
+ long value;
+ if(ct->range_bits == 32) {
+ long lhalf;
+ value = per_get_few_bits(pd, 16);
+ if(value < 0) _ASN_DECODE_STARVED;
+ lhalf = per_get_few_bits(pd, 16);
+ if(lhalf < 0) _ASN_DECODE_STARVED;
+ value = (value << 16) | lhalf;
+ } else {
+ value = per_get_few_bits(pd, ct->range_bits);
+ if(value < 0) _ASN_DECODE_STARVED;
+ }
+ ASN_DEBUG("Got value %ld + low %ld",
+ value, ct->lower_bound);
+ value += ct->lower_bound;
+ if((specs && specs->field_unsigned)
+ ? asn_ulong2INTEGER(st, value)
+ : asn_long2INTEGER(st, value))
+ _ASN_DECODE_FAILED;
+ return rval;
+ }
+ } else {
+ ASN_DEBUG("Decoding unconstrained integer %s", td->name);
+ }
+
+ /* X.691, #12.2.3, #12.2.4 */
+ do {
+ ssize_t len;
+ void *p;
+ int ret;
+
+ /* Get the PER length */
+ len = uper_get_length(pd, -1, &repeat);
+ if(len < 0) _ASN_DECODE_STARVED;
+
+ p = REALLOC(st->buf, st->size + len + 1);
+ if(!p) _ASN_DECODE_FAILED;
+ st->buf = (uint8_t *)p;
+
+ ret = per_get_many_bits(pd, &st->buf[st->size], 0, 8 * len);
+ if(ret < 0) _ASN_DECODE_STARVED;
+ st->size += len;
+ } while(repeat);
+ st->buf[st->size] = 0; /* JIC */
+
+ /* #12.2.3 */
+ if(ct && ct->lower_bound) {
+ /*
+ * TODO: replace by in-place arithmetics.
+ */
+ long value;
+ if(asn_INTEGER2long(st, &value))
+ _ASN_DECODE_FAILED;
+ if(asn_long2INTEGER(st, value + ct->lower_bound))
+ _ASN_DECODE_FAILED;
+ }
+
+ return rval;
+}
+
+asn_enc_rval_t
+INTEGER_encode_uper(asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_enc_rval_t er;
+ INTEGER_t *st = (INTEGER_t *)sptr;
+ const uint8_t *buf;
+ const uint8_t *end;
+ asn_per_constraint_t *ct;
+ long value = 0;
+
+ if(!st || st->size == 0) _ASN_ENCODE_FAILED;
+
+ if(!constraints) constraints = td->per_constraints;
+ ct = constraints ? &constraints->value : 0;
+
+ er.encoded = 0;
+
+ if(ct) {
+ int inext = 0;
+ if(specs && specs->field_unsigned) {
+ unsigned long uval;
+ if(asn_INTEGER2ulong(st, &uval))
+ _ASN_ENCODE_FAILED;
+ /* Check proper range */
+ if(ct->flags & APC_SEMI_CONSTRAINED) {
+ if(uval < (unsigned long)ct->lower_bound)
+ inext = 1;
+ } else if(ct->range_bits >= 0) {
+ if(uval < (unsigned long)ct->lower_bound
+ || uval > (unsigned long)ct->upper_bound)
+ inext = 1;
+ }
+ ASN_DEBUG("Value %lu (%02x/%d) lb %lu ub %lu %s",
+ uval, st->buf[0], st->size,
+ ct->lower_bound, ct->upper_bound,
+ inext ? "ext" : "fix");
+ value = uval;
+ } else {
+ if(asn_INTEGER2long(st, &value))
+ _ASN_ENCODE_FAILED;
+ /* Check proper range */
+ if(ct->flags & APC_SEMI_CONSTRAINED) {
+ if(value < ct->lower_bound)
+ inext = 1;
+ } else if(ct->range_bits >= 0) {
+ if(value < ct->lower_bound
+ || value > ct->upper_bound)
+ inext = 1;
+ }
+ ASN_DEBUG("Value %ld (%02x/%d) lb %ld ub %ld %s",
+ value, st->buf[0], st->size,
+ ct->lower_bound, ct->upper_bound,
+ inext ? "ext" : "fix");
+ }
+ if(ct->flags & APC_EXTENSIBLE) {
+ if(per_put_few_bits(po, inext, 1))
+ _ASN_ENCODE_FAILED;
+ if(inext) ct = 0;
+ } else if(inext) {
+ _ASN_ENCODE_FAILED;
+ }
+ }
+
+
+ /* X.691, #12.2.2 */
+ if(ct && ct->range_bits >= 0) {
+ /* #10.5.6 */
+ ASN_DEBUG("Encoding integer with range %d bits",
+ ct->range_bits);
+ if(ct->range_bits == 32) {
+ /* TODO: extend to >32 bits */
+ long v = value - ct->lower_bound;
+ if(per_put_few_bits(po, v >> 1, 31)
+ || per_put_few_bits(po, v, 1))
+ _ASN_ENCODE_FAILED;
+ } else {
+ if(per_put_few_bits(po, value - ct->lower_bound,
+ ct->range_bits))
+ _ASN_ENCODE_FAILED;
+ }
+ _ASN_ENCODED_OK(er);
+ }
+
+ if(ct && ct->lower_bound) {
+ ASN_DEBUG("Adjust lower bound to %ld", ct->lower_bound);
+ /* TODO: adjust lower bound */
+ _ASN_ENCODE_FAILED;
+ }
+
+ for(buf = st->buf, end = st->buf + st->size; buf < end;) {
+ ssize_t mayEncode = uper_put_length(po, end - buf);
+ if(mayEncode < 0)
+ _ASN_ENCODE_FAILED;
+ if(per_put_many_bits(po, buf, 8 * mayEncode))
+ _ASN_ENCODE_FAILED;
+ buf += mayEncode;
+ }
+
+ _ASN_ENCODED_OK(er);
+}
+
+int
+asn_INTEGER2long(const INTEGER_t *iptr, long *lptr) {
+ uint8_t *b, *end;
+ size_t size;
+ long l;
+
+ /* Sanity checking */
+ if(!iptr || !iptr->buf || !lptr) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* Cache the begin/end of the buffer */
+ b = iptr->buf; /* Start of the INTEGER buffer */
+ size = iptr->size;
+ end = b + size; /* Where to stop */
+
+ if(size > sizeof(long)) {
+ uint8_t *end1 = end - 1;
+ /*
+ * Slightly more advanced processing,
+ * able to >sizeof(long) bytes,
+ * when the actual value is small
+ * (0x0000000000abcdef would yield a fine 0x00abcdef)
+ */
+ /* Skip out the insignificant leading bytes */
+ for(; b < end1; b++) {
+ switch(*b) {
+ case 0x00: if((b[1] & 0x80) == 0) continue; break;
+ case 0xff: if((b[1] & 0x80) != 0) continue; break;
+ }
+ break;
+ }
+
+ size = end - b;
+ if(size > sizeof(long)) {
+ /* Still cannot fit the long */
+ errno = ERANGE;
+ return -1;
+ }
+ }
+
+ /* Shortcut processing of a corner case */
+ if(end == b) {
+ *lptr = 0;
+ return 0;
+ }
+
+ /* Perform the sign initialization */
+ /* Actually l = -(*b >> 7); gains nothing, yet unreadable! */
+ if((*b >> 7)) l = -1; else l = 0;
+
+ /* Conversion engine */
+ for(; b < end; b++)
+ l = (l << 8) | *b;
+
+ *lptr = l;
+ return 0;
+}
+
+int
+asn_INTEGER2ulong(const INTEGER_t *iptr, unsigned long *lptr) {
+ uint8_t *b, *end;
+ unsigned long l;
+ size_t size;
+
+ if(!iptr || !iptr->buf || !lptr) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ b = iptr->buf;
+ size = iptr->size;
+ end = b + size;
+
+ /* If all extra leading bytes are zeroes, ignore them */
+ for(; size > sizeof(unsigned long); b++, size--) {
+ if(*b) {
+ /* Value won't fit unsigned long */
+ errno = ERANGE;
+ return -1;
+ }
+ }
+
+ /* Conversion engine */
+ for(l = 0; b < end; b++)
+ l = (l << 8) | *b;
+
+ *lptr = l;
+ return 0;
+}
+
+int
+asn_ulong2INTEGER(INTEGER_t *st, unsigned long value) {
+ uint8_t *buf;
+ uint8_t *end;
+ uint8_t *b;
+ int shr;
+
+ if(value <= LONG_MAX)
+ return asn_long2INTEGER(st, value);
+
+ buf = (uint8_t *)MALLOC(1 + sizeof(value));
+ if(!buf) return -1;
+
+ end = buf + (sizeof(value) + 1);
+ buf[0] = 0;
+ for(b = buf, shr = (sizeof(long)-1)*8; b < end; shr -= 8)
+ *(++b) = (uint8_t)(value >> shr);
+
+ if(st->buf) FREEMEM(st->buf);
+ st->buf = buf;
+ st->size = 1 + sizeof(value);
+
+ return 0;
+}
+
+int
+asn_long2INTEGER(INTEGER_t *st, long value) {
+ uint8_t *buf, *bp;
+ uint8_t *p;
+ uint8_t *pstart;
+ uint8_t *pend1;
+ int littleEndian = 1; /* Run-time detection */
+ int add;
+
+ if(!st) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ buf = (uint8_t *)MALLOC(sizeof(value));
+ if(!buf) return -1;
+
+ if(*(char *)&littleEndian) {
+ pstart = (uint8_t *)&value + sizeof(value) - 1;
+ pend1 = (uint8_t *)&value;
+ add = -1;
+ } else {
+ pstart = (uint8_t *)&value;
+ pend1 = pstart + sizeof(value) - 1;
+ add = 1;
+ }
+
+ /*
+ * If the contents octet consists of more than one octet,
+ * then bits of the first octet and bit 8 of the second octet:
+ * a) shall not all be ones; and
+ * b) shall not all be zero.
+ */
+ for(p = pstart; p != pend1; p += add) {
+ switch(*p) {
+ case 0x00: if((*(p+add) & 0x80) == 0)
+ continue;
+ break;
+ case 0xff: if((*(p+add) & 0x80))
+ continue;
+ break;
+ }
+ break;
+ }
+ /* Copy the integer body */
+ for(pstart = p, bp = buf, pend1 += add; p != pend1; p += add)
+ *bp++ = *p;
+
+ if(st->buf) FREEMEM(st->buf);
+ st->buf = buf;
+ st->size = bp - buf;
+
+ return 0;
+}
69 asn1/INTEGER.h
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef _INTEGER_H_
+#define _INTEGER_H_
+
+#include <asn_application.h>
+#include <asn_codecs_prim.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef ASN__PRIMITIVE_TYPE_t INTEGER_t;
+
+extern asn_TYPE_descriptor_t asn_DEF_INTEGER;
+
+/* Map with <tag> to integer value association */
+typedef struct asn_INTEGER_enum_map_s {
+ long nat_value; /* associated native integer value */
+ size_t enum_len; /* strlen("tag") */
+ const char *enum_name; /* "tag" */
+} asn_INTEGER_enum_map_t;
+
+/* This type describes an enumeration for INTEGER and ENUMERATED types */
+typedef struct asn_INTEGER_specifics_s {
+ asn_INTEGER_enum_map_t *value2enum; /* N -> "tag"; sorted by N */
+ unsigned int *enum2value; /* "tag" => N; sorted by tag */
+ int map_count; /* Elements in either map */
+ int extension; /* This map is extensible */
+ int strict_enumeration; /* Enumeration set is fixed */
+ int field_width; /* Size of native integer */
+ int field_unsigned; /* Signed=0, unsigned=1 */
+} asn_INTEGER_specifics_t;
+
+asn_struct_print_f INTEGER_print;
+ber_type_decoder_f INTEGER_decode_ber;
+der_type_encoder_f INTEGER_encode_der;
+xer_type_decoder_f INTEGER_decode_xer;
+xer_type_encoder_f INTEGER_encode_xer;
+per_type_decoder_f INTEGER_decode_uper;
+per_type_encoder_f INTEGER_encode_uper;
+
+/***********************************
+ * Some handy conversion routines. *
+ ***********************************/
+
+/*
+ * Returns 0 if it was possible to convert, -1 otherwise.
+ * -1/EINVAL: Mandatory argument missing
+ * -1/ERANGE: Value encoded is out of range for long representation
+ * -1/ENOMEM: Memory allocation failed (in asn_long2INTEGER()).
+ */
+int asn_INTEGER2long(const INTEGER_t *i, long *l);
+int asn_INTEGER2ulong(const INTEGER_t *i, unsigned long *l);
+int asn_long2INTEGER(INTEGER_t *i, long l);
+int asn_ulong2INTEGER(INTEGER_t *i, unsigned long l);
+
+/*
+ * Convert the integer value into the corresponding enumeration map entry.
+ */
+const asn_INTEGER_enum_map_t *INTEGER_map_value2enum(asn_INTEGER_specifics_t *specs, long value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INTEGER_H_ */
88 asn1/Makefile.am.sample
@@ -0,0 +1,88 @@
+ASN_MODULE_SOURCES= \
+ ReceiptAttribute.c \
+ Payload.c
+
+ASN_MODULE_HEADERS= \
+ ReceiptAttribute.h \
+ Payload.h
+
+ASN_MODULE_HEADERS+=INTEGER.h
+ASN_MODULE_HEADERS+=NativeEnumerated.h
+ASN_MODULE_SOURCES+=INTEGER.c
+ASN_MODULE_SOURCES+=NativeEnumerated.c
+ASN_MODULE_HEADERS+=NativeInteger.h
+ASN_MODULE_SOURCES+=NativeInteger.c
+ASN_MODULE_HEADERS+=asn_SET_OF.h
+ASN_MODULE_SOURCES+=asn_SET_OF.c
+ASN_MODULE_HEADERS+=constr_SEQUENCE.h
+ASN_MODULE_SOURCES+=constr_SEQUENCE.c
+ASN_MODULE_HEADERS+=constr_SET_OF.h
+ASN_MODULE_SOURCES+=constr_SET_OF.c
+ASN_MODULE_HEADERS+=asn_application.h
+ASN_MODULE_HEADERS+=asn_system.h
+ASN_MODULE_HEADERS+=asn_codecs.h
+ASN_MODULE_HEADERS+=asn_internal.h
+ASN_MODULE_HEADERS+=OCTET_STRING.h
+ASN_MODULE_SOURCES+=OCTET_STRING.c
+ASN_MODULE_HEADERS+=BIT_STRING.h
+ASN_MODULE_SOURCES+=BIT_STRING.c
+ASN_MODULE_SOURCES+=asn_codecs_prim.c
+ASN_MODULE_HEADERS+=asn_codecs_prim.h
+ASN_MODULE_HEADERS+=ber_tlv_length.h
+ASN_MODULE_SOURCES+=ber_tlv_length.c
+ASN_MODULE_HEADERS+=ber_tlv_tag.h
+ASN_MODULE_SOURCES+=ber_tlv_tag.c
+ASN_MODULE_HEADERS+=ber_decoder.h
+ASN_MODULE_SOURCES+=ber_decoder.c
+ASN_MODULE_HEADERS+=der_encoder.h
+ASN_MODULE_SOURCES+=der_encoder.c
+ASN_MODULE_HEADERS+=constr_TYPE.h
+ASN_MODULE_SOURCES+=constr_TYPE.c
+ASN_MODULE_HEADERS+=constraints.h
+ASN_MODULE_SOURCES+=constraints.c
+ASN_MODULE_HEADERS+=xer_support.h
+ASN_MODULE_SOURCES+=xer_support.c
+ASN_MODULE_HEADERS+=xer_decoder.h
+ASN_MODULE_SOURCES+=xer_decoder.c
+ASN_MODULE_HEADERS+=xer_encoder.h
+ASN_MODULE_SOURCES+=xer_encoder.c
+ASN_MODULE_HEADERS+=per_support.h
+ASN_MODULE_SOURCES+=per_support.c
+ASN_MODULE_HEADERS+=per_decoder.h
+ASN_MODULE_SOURCES+=per_decoder.c
+ASN_MODULE_HEADERS+=per_encoder.h
+ASN_MODULE_SOURCES+=per_encoder.c
+ASN_MODULE_HEADERS+=per_opentype.h
+ASN_MODULE_SOURCES+=per_opentype.c
+ASN_CONVERTER_SOURCES+=converter-sample.c
+
+
+lib_LTLIBRARIES=libsomething.la
+libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
+
+# This file may be used as an input for make(3)
+# Remove the lines below to convert it into a pure .am file
+TARGET = progname
+CFLAGS += -I.
+OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
+
+all: $(TARGET)
+
+$(TARGET): ${OBJS}
+ $(CC) $(CFLAGS) -o $(TARGET) ${OBJS} $(LDFLAGS) $(LIBS)
+
+.SUFFIXES:
+.SUFFIXES: .c .o
+
+.c.o:
+ $(CC) $(CFLAGS) -o $@ -c $<
+
+clean:
+ rm -f $(TARGET)
+ rm -f $(OBJS)
+
+regen: regenerate-from-asn1-source
+
+regenerate-from-asn1-source:
+ asn1c -S/skeletons -fnative-types module.asn1
+
207 asn1/NativeEnumerated.c
@@ -0,0 +1,207 @@
+/*-
+ * Copyright (c) 2004, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+/*
+ * Read the NativeInteger.h for the explanation wrt. differences between
+ * INTEGER and NativeInteger.
+ * Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
+ * implementation deals with the standard (machine-specific) representation
+ * of them instead of using the platform-independent buffer.
+ */
+#include <asn_internal.h>
+#include <NativeEnumerated.h>
+
+/*
+ * NativeEnumerated basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_NativeEnumerated_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
+};
+asn_TYPE_descriptor_t asn_DEF_NativeEnumerated = {
+ "ENUMERATED", /* The ASN.1 type is still ENUMERATED */
+ "ENUMERATED",
+ NativeInteger_free,
+ NativeInteger_print,
+ asn_generic_no_constraint,
+ NativeInteger_decode_ber,
+ NativeInteger_encode_der,
+ NativeInteger_decode_xer,
+ NativeEnumerated_encode_xer,
+ NativeEnumerated_decode_uper,
+ NativeEnumerated_encode_uper,
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_NativeEnumerated_tags,
+ sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
+ asn_DEF_NativeEnumerated_tags, /* Same as above */
+ sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ 0 /* No specifics */
+};
+
+asn_enc_rval_t
+NativeEnumerated_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_enc_rval_t er;
+ const long *native = (const long *)sptr;
+ const asn_INTEGER_enum_map_t *el;
+
+ (void)ilevel;
+ (void)flags;
+
+ if(!native) _ASN_ENCODE_FAILED;
+
+ el = INTEGER_map_value2enum(specs, *native);
+ if(el) {
+ size_t srcsize = el->enum_len + 5;
+ char *src = (char *)alloca(srcsize);
+
+ er.encoded = snprintf(src, srcsize, "<%s/>", el->enum_name);
+ assert(er.encoded > 0 && (size_t)er.encoded < srcsize);
+ if(cb(src, er.encoded, app_key) < 0) _ASN_ENCODE_FAILED;
+ _ASN_ENCODED_OK(er);
+ } else {
+ ASN_DEBUG("ASN.1 forbids dealing with "
+ "unknown value of ENUMERATED type");
+ _ASN_ENCODE_FAILED;
+ }
+}
+
+asn_dec_rval_t
+NativeEnumerated_decode_uper(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td, asn_per_constraints_t *constraints,
+ void **sptr, asn_per_data_t *pd) {
+ asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics;
+ asn_dec_rval_t rval = { RC_OK, 0 };
+ long *native = (long *)*sptr;
+ asn_per_constraint_t *ct;
+ long value;
+
+ (void)opt_codec_ctx;
+
+ if(constraints) ct = &constraints->value;
+ else if(td->per_constraints) ct = &td->per_constraints->value;
+ else _ASN_DECODE_FAILED; /* Mandatory! */
+ if(!specs) _ASN_DECODE_FAILED;
+
+ if(!native) {
+ native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
+ if(!native) _ASN_DECODE_FAILED;
+ }
+
+ ASN_DEBUG("Decoding %s as NativeEnumerated", td->name);
+
+ if(ct->flags & APC_EXTENSIBLE) {
+ int inext = per_get_few_bits(pd, 1);
+ if(inext < 0) _ASN_DECODE_STARVED;
+ if(inext) ct = 0;
+ }
+
+ if(ct && ct->range_bits >= 0) {
+ value = per_get_few_bits(pd, ct->range_bits);
+ if(value < 0) _ASN_DECODE_STARVED;
+ if(value >= (specs->extension
+ ? specs->extension - 1 : specs->map_count))
+ _ASN_DECODE_FAILED;
+ } else {
+ if(!specs->extension)
+ _ASN_DECODE_FAILED;
+ /*
+ * X.691, #10.6: normally small non-negative whole number;
+ */
+ value = uper_get_nsnnwn(pd);
+ if(value < 0) _ASN_DECODE_STARVED;
+ value += specs->extension - 1;
+ if(value >= specs->map_count)
+ _ASN_DECODE_FAILED;
+ }
+
+ *native = specs->value2enum[value].nat_value;
+ ASN_DEBUG("Decoded %s = %ld", td->name, *native);
+
+ return rval;
+}
+
+static int
+NativeEnumerated__compar_value2enum(const void *ap, const void *bp) {
+ const asn_INTEGER_enum_map_t *a = ap;
+ const asn_INTEGER_enum_map_t *b = bp;
+ if(a->nat_value == b->nat_value)
+ return 0;
+ if(a->nat_value < b->nat_value)
+ return -1;
+ return 1;
+}
+
+asn_enc_rval_t
+NativeEnumerated_encode_uper(asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
+ asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics;
+ asn_enc_rval_t er;
+ long native, value;
+ asn_per_constraint_t *ct;
+ int inext = 0;
+ asn_INTEGER_enum_map_t key;
+ asn_INTEGER_enum_map_t *kf;
+
+ if(!sptr) _ASN_ENCODE_FAILED;
+ if(!specs) _ASN_ENCODE_FAILED;
+
+ if(constraints) ct = &constraints->value;
+ else if(td->per_constraints) ct = &td->per_constraints->value;
+ else _ASN_ENCODE_FAILED; /* Mandatory! */
+
+ ASN_DEBUG("Encoding %s as NativeEnumerated", td->name);
+
+ er.encoded = 0;
+
+ native = *(long *)sptr;
+ if(native < 0) _ASN_ENCODE_FAILED;
+
+ key.nat_value = native;
+ kf = bsearch(&key, specs->value2enum, specs->map_count,
+ sizeof(key), NativeEnumerated__compar_value2enum);
+ if(!kf) {
+ ASN_DEBUG("No element corresponds to %ld", native);
+ _ASN_ENCODE_FAILED;
+ }
+ value = kf - specs->value2enum;
+
+ if(ct->range_bits >= 0) {
+ int cmpWith = specs->extension
+ ? specs->extension - 1 : specs->map_count;
+ if(value >= cmpWith)
+ inext = 1;
+ }
+ if(ct->flags & APC_EXTENSIBLE) {
+ if(per_put_few_bits(po, inext, 1))
+ _ASN_ENCODE_FAILED;
+ if(inext) ct = 0;
+ } else if(inext) {
+ _ASN_ENCODE_FAILED;
+ }
+
+ if(ct && ct->range_bits >= 0) {
+ if(per_put_few_bits(po, value, ct->range_bits))
+ _ASN_ENCODE_FAILED;
+ _ASN_ENCODED_OK(er);
+ }
+
+ if(!specs->extension)
+ _ASN_ENCODE_FAILED;
+
+ /*
+ * X.691, #10.6: normally small non-negative whole number;
+ */
+ ASN_DEBUG("value = %ld, ext = %d, inext = %d, res = %ld",
+ value, specs->extension, inext,
+ value - (inext ? (specs->extension - 1) : 0));
+ if(uper_put_nsnnwn(po, value - (inext ? (specs->extension - 1) : 0)))
+ _ASN_ENCODE_FAILED;
+
+ _ASN_ENCODED_OK(er);
+}
+
32 asn1/NativeEnumerated.h
@@ -0,0 +1,32 @@
+/*-
+ * Copyright (c) 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+/*
+ * This type differs from the standard ENUMERATED in that it is modelled using
+ * the fixed machine type (long, int, short), so it can hold only values of
+ * limited length. There is no type (i.e., NativeEnumerated_t, any integer type
+ * will do).
+ * This type may be used when integer range is limited by subtype constraints.
+ */
+#ifndef _NativeEnumerated_H_
+#define _NativeEnumerated_H_
+
+#include <NativeInteger.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern asn_TYPE_descriptor_t asn_DEF_NativeEnumerated;
+
+xer_type_encoder_f NativeEnumerated_encode_xer;
+per_type_decoder_f NativeEnumerated_decode_uper;
+per_type_encoder_f NativeEnumerated_encode_uper;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _NativeEnumerated_H_ */
332 asn1/NativeInteger.c
@@ -0,0 +1,332 @@
+/*-
+ * Copyright (c) 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+/*
+ * Read the NativeInteger.h for the explanation wrt. differences between
+ * INTEGER and NativeInteger.
+ * Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
+ * implementation deals with the standard (machine-specific) representation
+ * of them instead of using the platform-independent buffer.
+ */
+#include <asn_internal.h>
+#include <NativeInteger.h>
+
+/*
+ * NativeInteger basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_NativeInteger_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
+};
+asn_TYPE_descriptor_t asn_DEF_NativeInteger = {
+ "INTEGER", /* The ASN.1 type is still INTEGER */
+ "INTEGER",
+ NativeInteger_free,
+ NativeInteger_print,
+ asn_generic_no_constraint,
+ NativeInteger_decode_ber,
+ NativeInteger_encode_der,
+ NativeInteger_decode_xer,
+ NativeInteger_encode_xer,
+ NativeInteger_decode_uper, /* Unaligned PER decoder */
+ NativeInteger_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_NativeInteger_tags,
+ sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
+ asn_DEF_NativeInteger_tags, /* Same as above */
+ sizeof(asn_DEF_NativeInteger_tags) / sizeof(asn_DEF_NativeInteger_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ 0 /* No specifics */
+};
+
+/*
+ * Decode INTEGER type.
+ */
+asn_dec_rval_t
+NativeInteger_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td,
+ void **nint_ptr, const void *buf_ptr, size_t size, int tag_mode) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ long *native = (long *)*nint_ptr;
+ asn_dec_rval_t rval;
+ ber_tlv_len_t length;
+
+ /*
+ * If the structure is not there, allocate it.
+ */
+ if(native == NULL) {
+ native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native)));
+ if(native == NULL) {
+ rval.code = RC_FAIL;
+ rval.consumed = 0;
+ return rval;
+ }
+ }
+
+ ASN_DEBUG("Decoding %s as INTEGER (tm=%d)",
+ td->name, tag_mode);
+
+ /*
+ * Check tags.
+ */
+ rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
+ tag_mode, 0, &length, 0);
+ if(rval.code != RC_OK)
+ return rval;
+
+ ASN_DEBUG("%s length is %d bytes", td->name, (int)length);
+
+ /*
+ * Make sure we have this length.
+ */
+ buf_ptr = ((const char *)buf_ptr) + rval.consumed;
+ size -= rval.consumed;
+ if(length > (ber_tlv_len_t)size) {
+ rval.code = RC_WMORE;
+ rval.consumed = 0;
+ return rval;
+ }
+
+ /*
+ * ASN.1 encoded INTEGER: buf_ptr, length
+ * Fill the native, at the same time checking for overflow.
+ * If overflow occured, return with RC_FAIL.
+ */
+ {
+ INTEGER_t tmp;
+ union {
+ const void *constbuf;
+ void *nonconstbuf;
+ } unconst_buf;
+ long l;
+
+ unconst_buf.constbuf = buf_ptr;
+ tmp.buf = (uint8_t *)unconst_buf.nonconstbuf;
+ tmp.size = length;
+
+ if((specs&&specs->field_unsigned)
+ ? asn_INTEGER2ulong(&tmp, &l)
+ : asn_INTEGER2long(&tmp, &l)) {
+ rval.code = RC_FAIL;
+ rval.consumed = 0;
+ return rval;
+ }
+
+ *native = l;
+ }
+
+ rval.code = RC_OK;
+ rval.consumed += length;
+
+ ASN_DEBUG("Took %ld/%ld bytes to encode %s (%ld)",
+ (long)rval.consumed, (long)length, td->name, (long)*native);
+
+ return rval;
+}
+
+/*
+ * Encode the NativeInteger using the standard INTEGER type DER encoder.
+ */
+asn_enc_rval_t
+NativeInteger_encode_der(asn_TYPE_descriptor_t *sd, void *ptr,
+ int tag_mode, ber_tlv_tag_t tag,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ unsigned long native = *(unsigned long *)ptr; /* Disable sign ext. */
+ asn_enc_rval_t erval;
+ INTEGER_t tmp;
+
+#ifdef WORDS_BIGENDIAN /* Opportunistic optimization */
+
+ tmp.buf = (uint8_t *)&native;
+ tmp.size = sizeof(native);
+
+#else /* Works even if WORDS_BIGENDIAN is not set where should've been */
+ uint8_t buf[sizeof(native)];
+ uint8_t *p;
+
+ /* Prepare a fake INTEGER */
+ for(p = buf + sizeof(buf) - 1; p >= buf; p--, native >>= 8)
+ *p = (uint8_t)native;
+
+ tmp.buf = buf;
+ tmp.size = sizeof(buf);
+#endif /* WORDS_BIGENDIAN */
+
+ /* Encode fake INTEGER */
+ erval = INTEGER_encode_der(sd, &tmp, tag_mode, tag, cb, app_key);
+ if(erval.encoded == -1) {
+ assert(erval.structure_ptr == &tmp);
+ erval.structure_ptr = ptr;
+ }
+ return erval;
+}
+
+/*
+ * Decode the chunk of XML text encoding INTEGER.
+ */
+asn_dec_rval_t
+NativeInteger_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname,
+ const void *buf_ptr, size_t size) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_dec_rval_t rval;
+ INTEGER_t st;
+ void *st_ptr = (void *)&st;
+ long *native = (long *)*sptr;
+
+ if(!native) {
+ native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
+ if(!native) _ASN_DECODE_FAILED;
+ }
+
+ memset(&st, 0, sizeof(st));
+ rval = INTEGER_decode_xer(opt_codec_ctx, td, &st_ptr,
+ opt_mname, buf_ptr, size);
+ if(rval.code == RC_OK) {
+ long l;
+ if((specs&&specs->field_unsigned)
+ ? asn_INTEGER2ulong(&st, &l)
+ : asn_INTEGER2long(&st, &l)) {
+ rval.code = RC_FAIL;
+ rval.consumed = 0;
+ } else {
+ *native = l;
+ }
+ } else {
+ /*
+ * Cannot restart from the middle;
+ * there is no place to save state in the native type.
+ * Request a continuation from the very beginning.
+ */
+ rval.consumed = 0;
+ }
+ ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &st);
+ return rval;
+}
+
+
+asn_enc_rval_t
+NativeInteger_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ char scratch[32]; /* Enough for 64-bit int */
+ asn_enc_rval_t er;
+ const long *native = (const long *)sptr;
+
+ (void)ilevel;
+ (void)flags;
+
+ if(!native) _ASN_ENCODE_FAILED;
+
+ er.encoded = snprintf(scratch, sizeof(scratch),
+ (specs && specs->field_unsigned)
+ ? "%lu" : "%ld", *native);
+ if(er.encoded <= 0 || (size_t)er.encoded >= sizeof(scratch)
+ || cb(scratch, er.encoded, app_key) < 0)
+ _ASN_ENCODE_FAILED;
+
+ _ASN_ENCODED_OK(er);
+}
+
+asn_dec_rval_t
+NativeInteger_decode_uper(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
+
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_dec_rval_t rval;
+ long *native = (long *)*sptr;
+ INTEGER_t tmpint;
+ void *tmpintptr = &tmpint;
+
+ (void)opt_codec_ctx;
+ ASN_DEBUG("Decoding NativeInteger %s (UPER)", td->name);
+
+ if(!native) {
+ native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
+ if(!native) _ASN_DECODE_FAILED;
+ }
+
+ memset(&tmpint, 0, sizeof tmpint);
+ rval = INTEGER_decode_uper(opt_codec_ctx, td, constraints,
+ &tmpintptr, pd);
+ if(rval.code == RC_OK) {
+ if((specs&&specs->field_unsigned)
+ ? asn_INTEGER2ulong(&tmpint, native)
+ : asn_INTEGER2long(&tmpint, native))
+ rval.code = RC_FAIL;
+ else
+ ASN_DEBUG("NativeInteger %s got value %ld",
+ td->name, *native);
+ }
+ ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
+
+ return rval;
+}
+
+asn_enc_rval_t
+NativeInteger_encode_uper(asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ asn_enc_rval_t er;
+ long native;
+ INTEGER_t tmpint;
+
+ if(!sptr) _ASN_ENCODE_FAILED;
+
+ native = *(long *)sptr;
+
+ ASN_DEBUG("Encoding NativeInteger %s %ld (UPER)", td->name, native);
+
+ memset(&tmpint, 0, sizeof(tmpint));
+ if((specs&&specs->field_unsigned)
+ ? asn_ulong2INTEGER(&tmpint, native)
+ : asn_long2INTEGER(&tmpint, native))
+ _ASN_ENCODE_FAILED;
+ er = INTEGER_encode_uper(td, constraints, &tmpint, po);
+ ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
+ return er;
+}
+
+/*
+ * INTEGER specific human-readable output.
+ */
+int
+NativeInteger_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
+ const long *native = (const long *)sptr;
+ char scratch[32]; /* Enough for 64-bit int */
+ int ret;
+
+ (void)td; /* Unused argument */
+ (void)ilevel; /* Unused argument */
+
+ if(native) {
+ ret = snprintf(scratch, sizeof(scratch),
+ (specs && specs->field_unsigned)
+ ? "%lu" : "%ld", *native);
+ assert(ret > 0 && (size_t)ret < sizeof(scratch));
+ return (cb(scratch, ret, app_key) < 0) ? -1 : 0;
+ } else {
+ return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
+ }
+}
+
+void
+NativeInteger_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) {
+
+ if(!td || !ptr)
+ return;
+
+ ASN_DEBUG("Freeing %s as INTEGER (%d, %p, Native)",
+ td->name, contents_only, ptr);
+
+ if(!contents_only) {
+ FREEMEM(ptr);
+ }
+}
+
37 asn1/NativeInteger.h
@@ -0,0 +1,37 @@
+/*-
+ * Copyright (c) 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+/*
+ * This type differs from the standard INTEGER in that it is modelled using
+ * the fixed machine type (long, int, short), so it can hold only values of
+ * limited length. There is no type (i.e., NativeInteger_t, any integer type
+ * will do).
+ * This type may be used when integer range is limited by subtype constraints.
+ */
+#ifndef _NativeInteger_H_
+#define _NativeInteger_H_
+
+#include <asn_application.h>
+#include <INTEGER.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern asn_TYPE_descriptor_t asn_DEF_NativeInteger;
+
+asn_struct_free_f NativeInteger_free;
+asn_struct_print_f NativeInteger_print;
+ber_type_decoder_f NativeInteger_decode_ber;
+der_type_encoder_f NativeInteger_encode_der;
+xer_type_decoder_f NativeInteger_decode_xer;
+xer_type_encoder_f NativeInteger_encode_xer;
+per_type_decoder_f NativeInteger_decode_uper;
+per_type_encoder_f NativeInteger_encode_uper;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _NativeInteger_H_ */
1,805 asn1/OCTET_STRING.c
@@ -0,0 +1,1805 @@
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006 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 ber_tlv_tag_t asn_DEF_OCTET_STRING_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (4 << 2))
+};
+static asn_OCTET_STRING_specifics_t asn_DEF_OCTET_STRING_specs = {
+ sizeof(OCTET_STRING_t),
+ offsetof(OCTET_STRING_t, _asn_ctx),
+ ASN_OSUBV_STR
+};
+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_TYPE_descriptor_t asn_DEF_OCTET_STRING = {
+ "OCTET STRING", /* Canonical name */
+ "OCTET_STRING", /* XML tag name */
+ OCTET_STRING_free,
+ OCTET_STRING_print, /* non-ascii stuff, generally */
+ asn_generic_no_constraint,
+ OCTET_STRING_decode_ber,
+ OCTET_STRING_encode_der,
+ OCTET_STRING_decode_xer_hex,
+ OCTET_STRING_encode_xer,
+ OCTET_STRING_decode_uper, /* Unaligned PER decoder */
+ OCTET_STRING_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ 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, /* No PER visible constraints */
+ 0, 0, /* No members */
+ &asn_DEF_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 */
+ int 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() {
+ return (struct _stack *)CALLOC(1, sizeof(struct _stack));
+}
+
+/*
+ * Decode OCTET STRING type.
+ */
+asn_dec_rval_t
+OCTET_STRING_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td,
+ void **sptr, const void *buf_ptr, size_t size, int tag_mode) {
+ asn_OCTET_STRING_specifics_t *specs = td->specifics
+ ? (asn_OCTET_STRING_specifics_t *)td->specifics
+ : &asn_DEF_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) {
+ stck = (struct _stack *)ctx->ptr;
+ } else {
+ 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) */
+ ssize_t Left = ((!sel||(size_t)sel->left >= size)
+ ?(ssize_t)size:sel->left);
+
+
+ ASN_DEBUG("%p, s->l=%ld, s->wn=%ld, s->g=%ld\n", 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) {
+ int 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=%d",
+ (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",
+ 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 && st->size) {
+ /* Finalize BIT STRING: zero out unused bits. */
+ st->buf[st->size-1] &= 0xff << st->bits_unused;
+ }
+
+ 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(asn_TYPE_descriptor_t *td, void *sptr,
+ int tag_mode, ber_tlv_tag_t tag,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_enc_rval_t er;
+ asn_OCTET_STRING_specifics_t *specs = td->specifics
+ ? (asn_OCTET_STRING_specifics_t *)td->specifics
+ : &asn_DEF_OCTET_STRING_specs;
+ BIT_STRING_t *st = (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);
+ er.encoded++;
+ }
+
+ /* 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);
+ }
+
+ er.encoded += st->size;
+ _ASN_ENCODED_OK(er);
+cb_failed:
+ _ASN_ENCODE_FAILED;
+}
+
+asn_enc_rval_t
+OCTET_STRING_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ static const char *h2c = "0123456789ABCDEF";
+ const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr;
+ asn_enc_rval_t er;
+ 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);
+ er.encoded += p - scratch;
+ p = scratch;
+ }
+ *p++ = h2c[(*buf >> 4) & 0x0F];
+ *p++ = h2c[*buf & 0x0F];
+ }
+
+ _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */
+ er.encoded += p - scratch;
+ } else {
+ for(i = 0; buf < end; buf++, i++) {
+ if(!(i % 16) && (i || st->size > 16)) {
+ _ASN_CALLBACK(scratch, p-scratch);
+ er.encoded += (p-scratch);
+ p = scratch;
+ _i_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 */
+ er.encoded += p - scratch;
+ if(st->size > 16)
+ _i_ASN_TEXT_INDENT(1, ilevel-1);
+ }
+ }
+
+ _ASN_ENCODED_OK(er);
+cb_failed:
+ _ASN_ENCODE_FAILED;
+}
+
+static struct OCTET_STRING__xer_escape_table_s {
+ 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"), /* &amp; */
+ { 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"), /* &lt; */
+ { 0, 0 }, /* = */
+ OSXET("\046\147\164\073"), /* &gt; */
+};
+
+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++) {
+ 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(asn_TYPE_descriptor_t *td, 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;
+ uint8_t *buf, *end;
+ uint8_t *ss; /* Sequence start */
+ ssize_t encoded_len = 0;
+
+ (void)ilevel; /* Unused argument */
+ (void)flags; /* Unused argument */
+