add missing files
This commit is contained in:
742
lib/asn1/fuzzer.c
Normal file
742
lib/asn1/fuzzer.c
Normal file
@@ -0,0 +1,742 @@
|
||||
/*
|
||||
* Copyright (c) 2009 Kungliga Tekniska Högskolan
|
||||
* (Royal Institute of Technology, Stockholm, Sweden).
|
||||
* All rights reserved.
|
||||
*
|
||||
* Portions Copyright (c) 2009 - 2010 Apple Inc. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "der_locl.h"
|
||||
#include <com_err.h>
|
||||
|
||||
enum trigger_method { FOFF, FRANDOM, FLINEAR, FLINEAR_SIZE };
|
||||
|
||||
#ifdef ASN1_FUZZER
|
||||
static enum trigger_method method = FOFF;
|
||||
|
||||
/* FLINEAR */
|
||||
static unsigned long fnum, fcur, fsize;
|
||||
#endif
|
||||
|
||||
int
|
||||
asn1_fuzzer_method(const char *mode)
|
||||
{
|
||||
#ifdef ASN1_FUZZER
|
||||
if (mode == NULL || strcasecmp(mode, "off") == 0) {
|
||||
method = FOFF;
|
||||
} else if (strcasecmp(mode, "random") == 0) {
|
||||
method = FRANDOM;
|
||||
} else if (strcasecmp(mode, "linear") == 0) {
|
||||
method = FLINEAR;
|
||||
} else if (strcasecmp(mode, "linear-size") == 0) {
|
||||
method = FLINEAR_SIZE;
|
||||
} else
|
||||
return 1;
|
||||
return 0;
|
||||
#else
|
||||
return 1;
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
asn1_fuzzer_reset(void)
|
||||
{
|
||||
#ifdef ASN1_FUZZER
|
||||
fcur = 0;
|
||||
fsize = 0;
|
||||
fnum = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
asn1_fuzzer_next(void)
|
||||
{
|
||||
#ifdef ASN1_FUZZER
|
||||
fcur = 0;
|
||||
fsize = 0;
|
||||
fnum++;
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
asn1_fuzzer_done(void)
|
||||
{
|
||||
#ifndef ASN1_FUZZER
|
||||
abort();
|
||||
#else
|
||||
/* since code paths */
|
||||
return (fnum > 10000);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef ASN1_FUZZER
|
||||
|
||||
static int
|
||||
fuzzer_trigger(unsigned int chance)
|
||||
{
|
||||
switch(method) {
|
||||
case FOFF:
|
||||
return 0;
|
||||
case FRANDOM:
|
||||
if ((rk_random() % chance) != 1)
|
||||
return 0;
|
||||
return 1;
|
||||
case FLINEAR:
|
||||
if (fnum == fcur++)
|
||||
return 1;
|
||||
return 0;
|
||||
case FLINEAR_SIZE:
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
fuzzer_size_trigger(unsigned long *cur)
|
||||
{
|
||||
if (method != FLINEAR_SIZE)
|
||||
return 0;
|
||||
if (fnum == (*cur)++)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static size_t
|
||||
fuzzer_length_len (size_t len)
|
||||
{
|
||||
if (fuzzer_size_trigger(&fsize)) {
|
||||
len = 0;
|
||||
} else if (fuzzer_size_trigger(&fsize)) {
|
||||
len = 129;
|
||||
} else if (fuzzer_size_trigger(&fsize)) {
|
||||
len = 0xffff;
|
||||
}
|
||||
|
||||
if (len < 128)
|
||||
return 1;
|
||||
else {
|
||||
int ret = 0;
|
||||
do {
|
||||
++ret;
|
||||
len /= 256;
|
||||
} while (len);
|
||||
return ret + 1;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
fuzzer_put_length (unsigned char *p, size_t len, size_t val, size_t *size)
|
||||
{
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
|
||||
if (fuzzer_size_trigger(&fcur)) {
|
||||
val = 0;
|
||||
} else if (fuzzer_size_trigger(&fcur)) {
|
||||
val = 129;
|
||||
} else if (fuzzer_size_trigger(&fcur)) {
|
||||
val = 0xffff;
|
||||
}
|
||||
|
||||
if (val < 128) {
|
||||
*p = val;
|
||||
*size = 1;
|
||||
} else {
|
||||
size_t l = 0;
|
||||
|
||||
while(val > 0) {
|
||||
if(len < 2)
|
||||
return ASN1_OVERFLOW;
|
||||
*p-- = val % 256;
|
||||
val /= 256;
|
||||
len--;
|
||||
l++;
|
||||
}
|
||||
*p = 0x80 | l;
|
||||
if(size)
|
||||
*size = l + 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
fuzzer_put_tag (unsigned char *p, size_t len, Der_class class, Der_type type,
|
||||
unsigned int tag, size_t *size)
|
||||
{
|
||||
unsigned fcont = 0;
|
||||
|
||||
if (tag <= 30) {
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
if (fuzzer_trigger(100))
|
||||
*p = MAKE_TAG(class, type, 0x1f);
|
||||
else
|
||||
*p = MAKE_TAG(class, type, tag);
|
||||
*size = 1;
|
||||
} else {
|
||||
size_t ret = 0;
|
||||
unsigned int continuation = 0;
|
||||
|
||||
do {
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
*p-- = tag % 128 | continuation;
|
||||
len--;
|
||||
ret++;
|
||||
tag /= 128;
|
||||
continuation = 0x80;
|
||||
} while(tag > 0);
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
if (fuzzer_trigger(100))
|
||||
*p-- = MAKE_TAG(class, type, 0);
|
||||
else
|
||||
*p-- = MAKE_TAG(class, type, 0x1f);
|
||||
ret++;
|
||||
*size = ret;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
fuzzer_put_length_and_tag (unsigned char *p, size_t len, size_t len_val,
|
||||
Der_class class, Der_type type,
|
||||
unsigned int tag, size_t *size)
|
||||
{
|
||||
size_t ret = 0;
|
||||
size_t l;
|
||||
int e;
|
||||
|
||||
e = fuzzer_put_length (p, len, len_val, &l);
|
||||
if(e)
|
||||
return e;
|
||||
p -= l;
|
||||
len -= l;
|
||||
ret += l;
|
||||
e = fuzzer_put_tag (p, len, class, type, tag, &l);
|
||||
if(e)
|
||||
return e;
|
||||
|
||||
ret += l;
|
||||
*size = ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
fuzzer_put_general_string (unsigned char *p, size_t len,
|
||||
const heim_general_string *str, size_t *size)
|
||||
{
|
||||
size_t slen = strlen(*str);
|
||||
|
||||
if (len < slen)
|
||||
return ASN1_OVERFLOW;
|
||||
p -= slen;
|
||||
if (slen >= 2 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%s", 2);
|
||||
} else if (slen >= 2 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%n", 2);
|
||||
} else if (slen >= 4 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%10n", 4);
|
||||
} else if (slen >= 10 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%n%n%n%n%n", 10);
|
||||
} else if (slen >= 10 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%n%p%s%d%x", 10);
|
||||
} else if (slen >= 7 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%.1024d", 7);
|
||||
} else if (slen >= 7 && fuzzer_trigger(100)) {
|
||||
memcpy(p+1, *str, slen);
|
||||
memcpy(p+1, "%.2049d", 7);
|
||||
} else if (fuzzer_trigger(100)) {
|
||||
memset(p+1, 0, slen);
|
||||
} else if (fuzzer_trigger(100)) {
|
||||
memset(p+1, 0xff, slen);
|
||||
} else if (fuzzer_trigger(100)) {
|
||||
memset(p+1, 'A', slen);
|
||||
} else {
|
||||
memcpy(p+1, *str, slen);
|
||||
}
|
||||
*size = slen;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
struct asn1_type_func fuzzerprim[A1T_NUM_ENTRY] = {
|
||||
#define fuzel(name, type) { \
|
||||
(asn1_type_encode)fuzzer_put_##name, \
|
||||
(asn1_type_decode)der_get_##name, \
|
||||
(asn1_type_length)der_length_##name, \
|
||||
(asn1_type_copy)der_copy_##name, \
|
||||
(asn1_type_release)der_free_##name, \
|
||||
sizeof(type) \
|
||||
}
|
||||
#define el(name, type) { \
|
||||
(asn1_type_encode)der_put_##name, \
|
||||
(asn1_type_decode)der_get_##name, \
|
||||
(asn1_type_length)der_length_##name, \
|
||||
(asn1_type_copy)der_copy_##name, \
|
||||
(asn1_type_release)der_free_##name, \
|
||||
sizeof(type) \
|
||||
}
|
||||
#define elber(name, type) { \
|
||||
(asn1_type_encode)der_put_##name, \
|
||||
(asn1_type_decode)der_get_##name##_ber, \
|
||||
(asn1_type_length)der_length_##name, \
|
||||
(asn1_type_copy)der_copy_##name, \
|
||||
(asn1_type_release)der_free_##name, \
|
||||
sizeof(type) \
|
||||
}
|
||||
el(integer, int),
|
||||
el(integer64, int64_t),
|
||||
el(heim_integer, heim_integer),
|
||||
el(integer, int),
|
||||
el(unsigned, unsigned),
|
||||
el(uninteger64, uint64_t),
|
||||
fuzel(general_string, heim_general_string),
|
||||
el(octet_string, heim_octet_string),
|
||||
elber(octet_string, heim_octet_string),
|
||||
el(ia5_string, heim_ia5_string),
|
||||
el(bmp_string, heim_bmp_string),
|
||||
el(universal_string, heim_universal_string),
|
||||
el(printable_string, heim_printable_string),
|
||||
el(visible_string, heim_visible_string),
|
||||
el(utf8string, heim_utf8_string),
|
||||
el(generalized_time, time_t),
|
||||
el(utctime, time_t),
|
||||
el(bit_string, heim_bit_string),
|
||||
{ (asn1_type_encode)der_put_boolean, (asn1_type_decode)der_get_boolean,
|
||||
(asn1_type_length)der_length_boolean, (asn1_type_copy)der_copy_integer,
|
||||
(asn1_type_release)der_free_integer, sizeof(int)
|
||||
},
|
||||
el(oid, heim_oid),
|
||||
el(general_string, heim_general_string),
|
||||
#undef fuzel
|
||||
#undef el
|
||||
#undef elber
|
||||
};
|
||||
|
||||
|
||||
|
||||
int
|
||||
_asn1_encode_fuzzer(const struct asn1_template *t,
|
||||
unsigned char *p, size_t len,
|
||||
const void *data, size_t *size)
|
||||
{
|
||||
size_t elements = A1_HEADER_LEN(t);
|
||||
int ret = 0;
|
||||
size_t oldlen = len;
|
||||
|
||||
t += A1_HEADER_LEN(t);
|
||||
|
||||
while (elements) {
|
||||
switch (t->tt & A1_OP_MASK) {
|
||||
case A1_OP_TYPE:
|
||||
case A1_OP_TYPE_EXTERN: {
|
||||
size_t newsize;
|
||||
const void *el = DPOC(data, t->offset);
|
||||
|
||||
if (t->tt & A1_FLAG_OPTIONAL) {
|
||||
void **pel = (void **)el;
|
||||
if (*pel == NULL)
|
||||
break;
|
||||
el = *pel;
|
||||
}
|
||||
|
||||
if ((t->tt & A1_OP_MASK) == A1_OP_TYPE) {
|
||||
ret = _asn1_encode_fuzzer(t->ptr, p, len, el, &newsize);
|
||||
} else {
|
||||
const struct asn1_type_func *f = t->ptr;
|
||||
ret = (f->encode)(p, len, el, &newsize);
|
||||
}
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
p -= newsize; len -= newsize;
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_TAG: {
|
||||
const void *olddata = data;
|
||||
size_t l, datalen;
|
||||
|
||||
data = DPOC(data, t->offset);
|
||||
|
||||
if (t->tt & A1_FLAG_OPTIONAL) {
|
||||
void **el = (void **)data;
|
||||
if (*el == NULL) {
|
||||
data = olddata;
|
||||
break;
|
||||
}
|
||||
data = *el;
|
||||
}
|
||||
|
||||
ret = _asn1_encode_fuzzer(t->ptr, p, len, data, &datalen);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
len -= datalen; p -= datalen;
|
||||
|
||||
ret = fuzzer_put_length_and_tag(p, len, datalen,
|
||||
A1_TAG_CLASS(t->tt),
|
||||
A1_TAG_TYPE(t->tt),
|
||||
A1_TAG_TAG(t->tt), &l);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
p -= l; len -= l;
|
||||
|
||||
data = olddata;
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_PARSE: {
|
||||
unsigned int type = A1_PARSE_TYPE(t->tt);
|
||||
size_t newsize;
|
||||
const void *el = DPOC(data, t->offset);
|
||||
|
||||
if (type > sizeof(fuzzerprim)/sizeof(fuzzerprim[0])) {
|
||||
ABORT_ON_ERROR();
|
||||
return ASN1_PARSE_ERROR;
|
||||
}
|
||||
|
||||
ret = (fuzzerprim[type].encode)(p, len, el, &newsize);
|
||||
if (ret)
|
||||
return ret;
|
||||
p -= newsize; len -= newsize;
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_SETOF: {
|
||||
const struct template_of *el = DPOC(data, t->offset);
|
||||
size_t ellen = _asn1_sizeofType(t->ptr);
|
||||
heim_octet_string *val;
|
||||
unsigned char *elptr = el->val;
|
||||
size_t i, totallen;
|
||||
|
||||
if (el->len == 0)
|
||||
break;
|
||||
|
||||
if (el->len > UINT_MAX/sizeof(val[0]))
|
||||
return ERANGE;
|
||||
|
||||
val = malloc(sizeof(val[0]) * el->len);
|
||||
if (val == NULL)
|
||||
return ENOMEM;
|
||||
|
||||
for(totallen = 0, i = 0; i < el->len; i++) {
|
||||
unsigned char *next;
|
||||
size_t l;
|
||||
|
||||
val[i].length = _asn1_length(t->ptr, elptr);
|
||||
val[i].data = malloc(val[i].length);
|
||||
|
||||
ret = _asn1_encode_fuzzer(t->ptr, DPO(val[i].data, val[i].length - 1),
|
||||
val[i].length, elptr, &l);
|
||||
if (ret)
|
||||
break;
|
||||
|
||||
next = elptr + ellen;
|
||||
if (next < elptr) {
|
||||
ret = ASN1_OVERFLOW;
|
||||
break;
|
||||
}
|
||||
elptr = next;
|
||||
totallen += val[i].length;
|
||||
}
|
||||
if (ret == 0 && totallen > len)
|
||||
ret = ASN1_OVERFLOW;
|
||||
if (ret) {
|
||||
do {
|
||||
free(val[i].data);
|
||||
} while(i-- > 0);
|
||||
free(val);
|
||||
return ret;
|
||||
}
|
||||
|
||||
len -= totallen;
|
||||
|
||||
qsort(val, el->len, sizeof(val[0]), _heim_der_set_sort);
|
||||
|
||||
i = el->len - 1;
|
||||
do {
|
||||
p -= val[i].length;
|
||||
memcpy(p + 1, val[i].data, val[i].length);
|
||||
free(val[i].data);
|
||||
} while(i-- > 0);
|
||||
free(val);
|
||||
|
||||
break;
|
||||
|
||||
}
|
||||
case A1_OP_SEQOF: {
|
||||
struct template_of *el = DPO(data, t->offset);
|
||||
size_t ellen = _asn1_sizeofType(t->ptr);
|
||||
size_t newsize;
|
||||
unsigned int i;
|
||||
unsigned char *elptr = el->val;
|
||||
|
||||
if (el->len == 0)
|
||||
break;
|
||||
|
||||
elptr += ellen * (el->len - 1);
|
||||
|
||||
for (i = 0; i < el->len; i++) {
|
||||
ret = _asn1_encode_fuzzer(t->ptr, p, len,
|
||||
elptr,
|
||||
&newsize);
|
||||
if (ret)
|
||||
return ret;
|
||||
p -= newsize; len -= newsize;
|
||||
elptr -= ellen;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_BMEMBER: {
|
||||
const struct asn1_template *bmember = t->ptr;
|
||||
size_t size = bmember->offset;
|
||||
size_t elements = A1_HEADER_LEN(bmember);
|
||||
size_t pos;
|
||||
unsigned char c = 0;
|
||||
unsigned int bitset = 0;
|
||||
int rfc1510 = (bmember->tt & A1_HBF_RFC1510);
|
||||
|
||||
bmember += elements;
|
||||
|
||||
if (rfc1510)
|
||||
pos = 31;
|
||||
else
|
||||
pos = bmember->offset;
|
||||
|
||||
while (elements && len) {
|
||||
while (bmember->offset / 8 < pos / 8) {
|
||||
if (rfc1510 || bitset || c) {
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
*p-- = c; len--;
|
||||
}
|
||||
c = 0;
|
||||
pos -= 8;
|
||||
}
|
||||
_asn1_bmember_put_bit(&c, data, bmember->offset, size, &bitset);
|
||||
elements--; bmember--;
|
||||
}
|
||||
if (rfc1510 || bitset) {
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
*p-- = c; len--;
|
||||
}
|
||||
|
||||
if (len < 1)
|
||||
return ASN1_OVERFLOW;
|
||||
if (rfc1510 || bitset == 0)
|
||||
*p-- = 0;
|
||||
else
|
||||
*p-- = bitset - 1;
|
||||
|
||||
len--;
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_CHOICE: {
|
||||
const struct asn1_template *choice = t->ptr;
|
||||
const unsigned int *element = DPOC(data, choice->offset);
|
||||
size_t datalen;
|
||||
const void *el;
|
||||
|
||||
if (*element > A1_HEADER_LEN(choice)) {
|
||||
printf("element: %d\n", *element);
|
||||
return ASN1_PARSE_ERROR;
|
||||
}
|
||||
|
||||
if (*element == 0) {
|
||||
ret += der_put_octet_string(p, len,
|
||||
DPOC(data, choice->tt), &datalen);
|
||||
} else {
|
||||
choice += *element;
|
||||
el = DPOC(data, choice->offset);
|
||||
ret = _asn1_encode_fuzzer(choice->ptr, p, len, el, &datalen);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
len -= datalen; p -= datalen;
|
||||
|
||||
break;
|
||||
}
|
||||
default:
|
||||
ABORT_ON_ERROR();
|
||||
}
|
||||
t--;
|
||||
elements--;
|
||||
}
|
||||
|
||||
if (fuzzer_trigger(1000)) {
|
||||
memset(p + 1, 0, oldlen - len);
|
||||
} else if (fuzzer_trigger(1000)) {
|
||||
memset(p + 1, 0x41, oldlen - len);
|
||||
} else if (fuzzer_trigger(1000)) {
|
||||
memset(p + 1, 0xff, oldlen - len);
|
||||
}
|
||||
|
||||
if (size)
|
||||
*size = oldlen - len;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
size_t
|
||||
_asn1_length_fuzzer(const struct asn1_template *t, const void *data)
|
||||
{
|
||||
size_t elements = A1_HEADER_LEN(t);
|
||||
size_t ret = 0;
|
||||
|
||||
t += A1_HEADER_LEN(t);
|
||||
|
||||
while (elements) {
|
||||
switch (t->tt & A1_OP_MASK) {
|
||||
case A1_OP_TYPE:
|
||||
case A1_OP_TYPE_EXTERN: {
|
||||
const void *el = DPOC(data, t->offset);
|
||||
|
||||
if (t->tt & A1_FLAG_OPTIONAL) {
|
||||
void **pel = (void **)el;
|
||||
if (*pel == NULL)
|
||||
break;
|
||||
el = *pel;
|
||||
}
|
||||
|
||||
if ((t->tt & A1_OP_MASK) == A1_OP_TYPE) {
|
||||
ret += _asn1_length(t->ptr, el);
|
||||
} else {
|
||||
const struct asn1_type_func *f = t->ptr;
|
||||
ret += (f->length)(el);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case A1_OP_TAG: {
|
||||
size_t datalen;
|
||||
const void *olddata = data;
|
||||
|
||||
data = DPO(data, t->offset);
|
||||
|
||||
if (t->tt & A1_FLAG_OPTIONAL) {
|
||||
void **el = (void **)data;
|
||||
if (*el == NULL) {
|
||||
data = olddata;
|
||||
break;
|
||||
}
|
||||
data = *el;
|
||||
}
|
||||
datalen = _asn1_length(t->ptr, data);
|
||||
ret += der_length_tag(A1_TAG_TAG(t->tt)) + fuzzer_length_len(datalen);
|
||||
ret += datalen;
|
||||
data = olddata;
|
||||
break;
|
||||
}
|
||||
case A1_OP_PARSE: {
|
||||
unsigned int type = A1_PARSE_TYPE(t->tt);
|
||||
const void *el = DPOC(data, t->offset);
|
||||
|
||||
if (type > sizeof(asn1_template_prim)/sizeof(asn1_template_prim[0])) {
|
||||
ABORT_ON_ERROR();
|
||||
break;
|
||||
}
|
||||
ret += (asn1_template_prim[type].length)(el);
|
||||
break;
|
||||
}
|
||||
case A1_OP_SETOF:
|
||||
case A1_OP_SEQOF: {
|
||||
const struct template_of *el = DPOC(data, t->offset);
|
||||
size_t ellen = _asn1_sizeofType(t->ptr);
|
||||
const unsigned char *element = el->val;
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < el->len; i++) {
|
||||
ret += _asn1_length(t->ptr, element);
|
||||
element += ellen;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
case A1_OP_BMEMBER: {
|
||||
const struct asn1_template *bmember = t->ptr;
|
||||
size_t size = bmember->offset;
|
||||
size_t elements = A1_HEADER_LEN(bmember);
|
||||
int rfc1510 = (bmember->tt & A1_HBF_RFC1510);
|
||||
|
||||
if (rfc1510) {
|
||||
ret += 5;
|
||||
} else {
|
||||
|
||||
ret += 1;
|
||||
|
||||
bmember += elements;
|
||||
|
||||
while (elements) {
|
||||
if (_asn1_bmember_isset_bit(data, bmember->offset, size)) {
|
||||
ret += (bmember->offset / 8) + 1;
|
||||
break;
|
||||
}
|
||||
elements--; bmember--;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
case A1_OP_CHOICE: {
|
||||
const struct asn1_template *choice = t->ptr;
|
||||
const unsigned int *element = DPOC(data, choice->offset);
|
||||
|
||||
if (*element > A1_HEADER_LEN(choice))
|
||||
break;
|
||||
|
||||
if (*element == 0) {
|
||||
ret += der_length_octet_string(DPOC(data, choice->tt));
|
||||
} else {
|
||||
choice += *element;
|
||||
ret += _asn1_length(choice->ptr, DPOC(data, choice->offset));
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
ABORT_ON_ERROR();
|
||||
break;
|
||||
}
|
||||
elements--;
|
||||
t--;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* ASN1_FUZZER */
|
32
lib/asn1/pku2u.asn1
Normal file
32
lib/asn1/pku2u.asn1
Normal file
@@ -0,0 +1,32 @@
|
||||
-- $Id$
|
||||
|
||||
PKU2U DEFINITIONS ::= BEGIN
|
||||
|
||||
IMPORTS heim_any_set FROM heim
|
||||
Checksum FROM krb5
|
||||
GeneralName FROM rfc2459
|
||||
;
|
||||
|
||||
GSS_KRB5_FINISHED ::= SEQUENCE {
|
||||
gss-mic [1] Checksum,
|
||||
...
|
||||
}
|
||||
|
||||
InitiatorName ::= CHOICE {
|
||||
sanIndex INTEGER (-2147483648..2147483647),
|
||||
nameNotInCert [0] GeneralName,
|
||||
...
|
||||
}
|
||||
|
||||
TargetName ::= CHOICE {
|
||||
exportedTargName OCTET STRING,
|
||||
generalName [0] GeneralName,
|
||||
...
|
||||
}
|
||||
|
||||
InitiatorNameAssertion ::= SEQUENCE {
|
||||
initiatorName [0] InitiatorName OPTIONAL,
|
||||
targetName [1] TargetName OPTIONAL
|
||||
}
|
||||
|
||||
END
|
1
lib/asn1/test.opt
Normal file
1
lib/asn1/test.opt
Normal file
@@ -0,0 +1 @@
|
||||
--sequence=TESTSeqOf
|
Reference in New Issue
Block a user