pineapple-src/externals/libressl/crypto/objects/obj_dat.c
2022-04-24 22:29:35 +02:00

702 lines
16 KiB
C
Executable file

/* $OpenBSD: obj_dat.c,v 1.49 2022/03/19 17:49:32 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <openssl/opensslconf.h>
#include <openssl/asn1.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/lhash.h>
#include <openssl/objects.h>
#include "asn1_locl.h"
/* obj_dat.h is generated from objects.h by obj_dat.pl */
#include "obj_dat.h"
static int sn_cmp_BSEARCH_CMP_FN(const void *, const void *);
static int sn_cmp(const ASN1_OBJECT * const *, unsigned int const *);
static unsigned int *OBJ_bsearch_sn(const ASN1_OBJECT * *key, unsigned int const *base, int num);
static int ln_cmp_BSEARCH_CMP_FN(const void *, const void *);
static int ln_cmp(const ASN1_OBJECT * const *, unsigned int const *);
static unsigned int *OBJ_bsearch_ln(const ASN1_OBJECT * *key, unsigned int const *base, int num);
static int obj_cmp_BSEARCH_CMP_FN(const void *, const void *);
static int obj_cmp(const ASN1_OBJECT * const *, unsigned int const *);
static unsigned int *OBJ_bsearch_obj(const ASN1_OBJECT * *key, unsigned int const *base, int num);
#define ADDED_DATA 0
#define ADDED_SNAME 1
#define ADDED_LNAME 2
#define ADDED_NID 3
typedef struct added_obj_st {
int type;
ASN1_OBJECT *obj;
} ADDED_OBJ;
DECLARE_LHASH_OF(ADDED_OBJ);
static int new_nid = NUM_NID;
static LHASH_OF(ADDED_OBJ) *added = NULL;
static int sn_cmp(const ASN1_OBJECT * const *a, const unsigned int *b)
{
return (strcmp((*a)->sn, nid_objs[*b].sn));
}
static int
sn_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
{
const ASN1_OBJECT * const *a = a_;
unsigned int const *b = b_;
return sn_cmp(a, b);
}
static unsigned int *
OBJ_bsearch_sn(const ASN1_OBJECT * *key, unsigned int const *base, int num)
{
return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int),
sn_cmp_BSEARCH_CMP_FN);
}
static int ln_cmp(const ASN1_OBJECT * const *a, const unsigned int *b)
{
return (strcmp((*a)->ln, nid_objs[*b].ln));
}
static int
ln_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
{
const ASN1_OBJECT * const *a = a_;
unsigned int const *b = b_;
return ln_cmp(a, b);
}
static unsigned int *
OBJ_bsearch_ln(const ASN1_OBJECT * *key, unsigned int const *base, int num)
{
return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int),
ln_cmp_BSEARCH_CMP_FN);
}
static unsigned long
added_obj_hash(const ADDED_OBJ *ca)
{
const ASN1_OBJECT *a;
int i;
unsigned long ret = 0;
unsigned char *p;
a = ca->obj;
switch (ca->type) {
case ADDED_DATA:
ret = a->length << 20L;
p = (unsigned char *)a->data;
for (i = 0; i < a->length; i++)
ret ^= p[i] << ((i * 3) % 24);
break;
case ADDED_SNAME:
ret = lh_strhash(a->sn);
break;
case ADDED_LNAME:
ret = lh_strhash(a->ln);
break;
case ADDED_NID:
ret = a->nid;
break;
default:
/* abort(); */
return 0;
}
ret &= 0x3fffffffL;
ret |= ca->type << 30L;
return (ret);
}
static IMPLEMENT_LHASH_HASH_FN(added_obj, ADDED_OBJ)
static int
added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
{
ASN1_OBJECT *a, *b;
int i;
i = ca->type - cb->type;
if (i)
return (i);
a = ca->obj;
b = cb->obj;
switch (ca->type) {
case ADDED_DATA:
i = (a->length - b->length);
if (i)
return (i);
return (memcmp(a->data, b->data, (size_t)a->length));
case ADDED_SNAME:
if (a->sn == NULL)
return (-1);
else if (b->sn == NULL)
return (1);
else
return (strcmp(a->sn, b->sn));
case ADDED_LNAME:
if (a->ln == NULL)
return (-1);
else if (b->ln == NULL)
return (1);
else
return (strcmp(a->ln, b->ln));
case ADDED_NID:
return (a->nid - b->nid);
default:
/* abort(); */
return 0;
}
}
static IMPLEMENT_LHASH_COMP_FN(added_obj, ADDED_OBJ)
static int
init_added(void)
{
if (added != NULL)
return (1);
added = lh_ADDED_OBJ_new();
return (added != NULL);
}
static void
cleanup1_doall(ADDED_OBJ *a)
{
a->obj->nid = 0;
a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
ASN1_OBJECT_FLAG_DYNAMIC_DATA;
}
static void cleanup2_doall(ADDED_OBJ *a)
{
a->obj->nid++;
}
static void
cleanup3_doall(ADDED_OBJ *a)
{
if (--a->obj->nid == 0)
ASN1_OBJECT_free(a->obj);
free(a);
}
static IMPLEMENT_LHASH_DOALL_FN(cleanup1, ADDED_OBJ)
static IMPLEMENT_LHASH_DOALL_FN(cleanup2, ADDED_OBJ)
static IMPLEMENT_LHASH_DOALL_FN(cleanup3, ADDED_OBJ)
/* The purpose of obj_cleanup_defer is to avoid EVP_cleanup() attempting
* to use freed up OIDs. If neccessary the actual freeing up of OIDs is
* delayed.
*/
int obj_cleanup_defer = 0;
void
check_defer(int nid)
{
if (!obj_cleanup_defer && nid >= NUM_NID)
obj_cleanup_defer = 1;
}
void
OBJ_cleanup(void)
{
if (obj_cleanup_defer) {
obj_cleanup_defer = 2;
return;
}
if (added == NULL)
return;
lh_ADDED_OBJ_down_load(added) = 0;
lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup1)); /* zero counters */
lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup2)); /* set counters */
lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup3)); /* free objects */
lh_ADDED_OBJ_free(added);
added = NULL;
}
int
OBJ_new_nid(int num)
{
int i;
i = new_nid;
new_nid += num;
return (i);
}
int
OBJ_add_object(const ASN1_OBJECT *obj)
{
ASN1_OBJECT *o;
ADDED_OBJ *ao[4] = {NULL, NULL, NULL, NULL}, *aop;
int i;
if (added == NULL)
if (!init_added())
return (0);
if ((o = OBJ_dup(obj)) == NULL)
goto err;
if (!(ao[ADDED_NID] = malloc(sizeof(ADDED_OBJ))))
goto err2;
if ((o->length != 0) && (obj->data != NULL))
if (!(ao[ADDED_DATA] = malloc(sizeof(ADDED_OBJ))))
goto err2;
if (o->sn != NULL)
if (!(ao[ADDED_SNAME] = malloc(sizeof(ADDED_OBJ))))
goto err2;
if (o->ln != NULL)
if (!(ao[ADDED_LNAME] = malloc(sizeof(ADDED_OBJ))))
goto err2;
for (i = ADDED_DATA; i <= ADDED_NID; i++) {
if (ao[i] != NULL) {
ao[i]->type = i;
ao[i]->obj = o;
aop = lh_ADDED_OBJ_insert(added, ao[i]);
/* memory leak, buit should not normally matter */
free(aop);
}
}
o->flags &= ~(ASN1_OBJECT_FLAG_DYNAMIC |
ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
ASN1_OBJECT_FLAG_DYNAMIC_DATA);
return (o->nid);
err2:
OBJerror(ERR_R_MALLOC_FAILURE);
err:
for (i = ADDED_DATA; i <= ADDED_NID; i++)
free(ao[i]);
ASN1_OBJECT_free(o);
return (NID_undef);
}
ASN1_OBJECT *
OBJ_nid2obj(int n)
{
ADDED_OBJ ad, *adp;
ASN1_OBJECT ob;
if ((n >= 0) && (n < NUM_NID)) {
if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
return ((ASN1_OBJECT *)&(nid_objs[n]));
} else if (added == NULL)
return (NULL);
else {
ad.type = ADDED_NID;
ad.obj = &ob;
ob.nid = n;
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj);
else {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
}
}
const char *
OBJ_nid2sn(int n)
{
ADDED_OBJ ad, *adp;
ASN1_OBJECT ob;
if ((n >= 0) && (n < NUM_NID)) {
if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
return (nid_objs[n].sn);
} else if (added == NULL)
return (NULL);
else {
ad.type = ADDED_NID;
ad.obj = &ob;
ob.nid = n;
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj->sn);
else {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
}
}
const char *
OBJ_nid2ln(int n)
{
ADDED_OBJ ad, *adp;
ASN1_OBJECT ob;
if ((n >= 0) && (n < NUM_NID)) {
if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
return (nid_objs[n].ln);
} else if (added == NULL)
return (NULL);
else {
ad.type = ADDED_NID;
ad.obj = &ob;
ob.nid = n;
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj->ln);
else {
OBJerror(OBJ_R_UNKNOWN_NID);
return (NULL);
}
}
}
static int
obj_cmp(const ASN1_OBJECT * const *ap, const unsigned int *bp)
{
int j;
const ASN1_OBJECT *a= *ap;
const ASN1_OBJECT *b = &nid_objs[*bp];
j = (a->length - b->length);
if (j)
return (j);
return (memcmp(a->data, b->data, a->length));
}
static int
obj_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
{
const ASN1_OBJECT * const *a = a_;
unsigned int const *b = b_;
return obj_cmp(a, b);
}
static unsigned int *
OBJ_bsearch_obj(const ASN1_OBJECT * *key, unsigned int const *base, int num)
{
return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int),
obj_cmp_BSEARCH_CMP_FN);
}
int
OBJ_obj2nid(const ASN1_OBJECT *a)
{
const unsigned int *op;
ADDED_OBJ ad, *adp;
if (a == NULL || a->length == 0)
return (NID_undef);
if (a->nid != NID_undef)
return (a->nid);
if (added != NULL) {
ad.type = ADDED_DATA;
ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj->nid);
}
op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
if (op == NULL)
return (NID_undef);
return (nid_objs[*op].nid);
}
/* Convert an object name into an ASN1_OBJECT
* if "noname" is not set then search for short and long names first.
* This will convert the "dotted" form into an object: unlike OBJ_txt2nid
* it can be used with any objects, not just registered ones.
*/
ASN1_OBJECT *
OBJ_txt2obj(const char *s, int no_name)
{
int nid;
if (!no_name) {
if (((nid = OBJ_sn2nid(s)) != NID_undef) ||
((nid = OBJ_ln2nid(s)) != NID_undef) )
return OBJ_nid2obj(nid);
}
return t2i_ASN1_OBJECT_internal(s);
}
int
OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *aobj, int no_name)
{
if (aobj == NULL || aobj->data == NULL)
return 0;
return i2t_ASN1_OBJECT_internal(aobj, buf, buf_len, no_name);
}
int
OBJ_txt2nid(const char *s)
{
ASN1_OBJECT *obj;
int nid;
obj = OBJ_txt2obj(s, 0);
nid = OBJ_obj2nid(obj);
ASN1_OBJECT_free(obj);
return nid;
}
int
OBJ_ln2nid(const char *s)
{
ASN1_OBJECT o;
const ASN1_OBJECT *oo = &o;
ADDED_OBJ ad, *adp;
const unsigned int *op;
o.ln = s;
if (added != NULL) {
ad.type = ADDED_LNAME;
ad.obj = &o;
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj->nid);
}
op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
if (op == NULL)
return (NID_undef);
return (nid_objs[*op].nid);
}
int
OBJ_sn2nid(const char *s)
{
ASN1_OBJECT o;
const ASN1_OBJECT *oo = &o;
ADDED_OBJ ad, *adp;
const unsigned int *op;
o.sn = s;
if (added != NULL) {
ad.type = ADDED_SNAME;
ad.obj = &o;
adp = lh_ADDED_OBJ_retrieve(added, &ad);
if (adp != NULL)
return (adp->obj->nid);
}
op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
if (op == NULL)
return (NID_undef);
return (nid_objs[*op].nid);
}
const void *
OBJ_bsearch_(const void *key, const void *base, int num, int size,
int (*cmp)(const void *, const void *))
{
return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
}
const void *
OBJ_bsearch_ex_(const void *key, const void *base_, int num, int size,
int (*cmp)(const void *, const void *), int flags)
{
const char *base = base_;
int l, h, i = 0, c = 0;
const char *p = NULL;
if (num == 0)
return (NULL);
l = 0;
h = num;
while (l < h) {
i = (l + h) / 2;
p = &(base[i * size]);
c = (*cmp)(key, p);
if (c < 0)
h = i;
else if (c > 0)
l = i + 1;
else
break;
}
if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
p = NULL;
else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
while (i > 0 && (*cmp)(key, &(base[(i - 1) * size])) == 0)
i--;
p = &(base[i * size]);
}
return (p);
}
int
OBJ_create_objects(BIO *in)
{
char buf[512];
int i, num = 0;
char *o, *s, *l = NULL;
for (;;) {
s = o = NULL;
i = BIO_gets(in, buf, 512);
if (i <= 0)
return (num);
buf[i - 1] = '\0';
if (!isalnum((unsigned char)buf[0]))
return (num);
o = s=buf;
while (isdigit((unsigned char)*s) || (*s == '.'))
s++;
if (*s != '\0') {
*(s++) = '\0';
while (isspace((unsigned char)*s))
s++;
if (*s == '\0')
s = NULL;
else {
l = s;
while ((*l != '\0') &&
!isspace((unsigned char)*l))
l++;
if (*l != '\0') {
*(l++) = '\0';
while (isspace((unsigned char)*l))
l++;
if (*l == '\0')
l = NULL;
} else
l = NULL;
}
} else
s = NULL;
if ((o == NULL) || (*o == '\0'))
return (num);
if (!OBJ_create(o, s, l))
return (num);
num++;
}
/* return(num); */
}
int
OBJ_create(const char *oid, const char *sn, const char *ln)
{
int ok = 0;
ASN1_OBJECT *op = NULL;
unsigned char *buf;
int i;
i = a2d_ASN1_OBJECT(NULL, 0, oid, -1);
if (i <= 0)
return (0);
if ((buf = malloc(i)) == NULL) {
OBJerror(ERR_R_MALLOC_FAILURE);
return (0);
}
i = a2d_ASN1_OBJECT(buf, i, oid, -1);
if (i == 0)
goto err;
op = (ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1), buf, i, sn, ln);
if (op == NULL)
goto err;
ok = OBJ_add_object(op);
err:
ASN1_OBJECT_free(op);
free(buf);
return (ok);
}
size_t
OBJ_length(const ASN1_OBJECT *obj)
{
if (obj == NULL)
return 0;
if (obj->length < 0)
return 0;
return obj->length;
}
const unsigned char *
OBJ_get0_data(const ASN1_OBJECT *obj)
{
if (obj == NULL)
return NULL;
return obj->data;
}