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Diffstat (limited to 'Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c')
-rw-r--r--Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c79
1 files changed, 54 insertions, 25 deletions
diff --git a/Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c b/Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c
index 596b6564..65749239 100644
--- a/Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c
+++ b/Cryptlib/OpenSSL/crypto/asn1/asn1_gen.c
@@ -74,6 +74,8 @@
#define ASN1_GEN_STR(str,val) {str, sizeof(str) - 1, val}
#define ASN1_FLAG_EXP_MAX 20
+/* Maximum number of nested sequences */
+#define ASN1_GEN_SEQ_MAX_DEPTH 50
/* Input formats */
@@ -110,13 +112,16 @@ typedef struct {
int exp_count;
} tag_exp_arg;
+static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
+ int *perr);
static int bitstr_cb(const char *elem, int len, void *bitstr);
static int asn1_cb(const char *elem, int len, void *bitstr);
static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
int exp_constructed, int exp_pad, int imp_ok);
static int parse_tagging(const char *vstart, int vlen, int *ptag,
int *pclass);
-static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf);
+static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
+ int depth, int *perr);
static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype);
static int asn1_str2tag(const char *tagstr, int len);
@@ -133,6 +138,16 @@ ASN1_TYPE *ASN1_generate_nconf(char *str, CONF *nconf)
ASN1_TYPE *ASN1_generate_v3(char *str, X509V3_CTX *cnf)
{
+ int err = 0;
+ ASN1_TYPE *ret = generate_v3(str, cnf, 0, &err);
+ if (err)
+ ASN1err(ASN1_F_ASN1_GENERATE_V3, err);
+ return ret;
+}
+
+static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
+ int *perr)
+{
ASN1_TYPE *ret;
tag_exp_arg asn1_tags;
tag_exp_type *etmp;
@@ -152,17 +167,22 @@ ASN1_TYPE *ASN1_generate_v3(char *str, X509V3_CTX *cnf)
asn1_tags.imp_class = -1;
asn1_tags.format = ASN1_GEN_FORMAT_ASCII;
asn1_tags.exp_count = 0;
- if (CONF_parse_list(str, ',', 1, asn1_cb, &asn1_tags) != 0)
+ if (CONF_parse_list(str, ',', 1, asn1_cb, &asn1_tags) != 0) {
+ *perr = ASN1_R_UNKNOWN_TAG;
return NULL;
+ }
if ((asn1_tags.utype == V_ASN1_SEQUENCE)
|| (asn1_tags.utype == V_ASN1_SET)) {
if (!cnf) {
- ASN1err(ASN1_F_ASN1_GENERATE_V3,
- ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG);
+ *perr = ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG;
+ return NULL;
+ }
+ if (depth >= ASN1_GEN_SEQ_MAX_DEPTH) {
+ *perr = ASN1_R_ILLEGAL_NESTED_TAGGING;
return NULL;
}
- ret = asn1_multi(asn1_tags.utype, asn1_tags.str, cnf);
+ ret = asn1_multi(asn1_tags.utype, asn1_tags.str, cnf, depth, perr);
} else
ret = asn1_str2type(asn1_tags.str, asn1_tags.format, asn1_tags.utype);
@@ -242,9 +262,14 @@ ASN1_TYPE *ASN1_generate_v3(char *str, X509V3_CTX *cnf)
/* If IMPLICIT, output tag */
- if (asn1_tags.imp_tag != -1)
+ if (asn1_tags.imp_tag != -1) {
+ if (asn1_tags.imp_class == V_ASN1_UNIVERSAL
+ && (asn1_tags.imp_tag == V_ASN1_SEQUENCE
+ || asn1_tags.imp_tag == V_ASN1_SET))
+ hdr_constructed = V_ASN1_CONSTRUCTED;
ASN1_put_object(&p, hdr_constructed, hdr_len,
asn1_tags.imp_tag, asn1_tags.imp_class);
+ }
/* Copy across original encoding */
memcpy(p, cpy_start, cpy_len);
@@ -274,6 +299,9 @@ static int asn1_cb(const char *elem, int len, void *bitstr)
int tmp_tag, tmp_class;
+ if (elem == NULL)
+ return -1;
+
for (i = 0, p = elem; i < len; p++, i++) {
/* Look for the ':' in name value pairs */
if (*p == ':') {
@@ -345,13 +373,17 @@ static int asn1_cb(const char *elem, int len, void *bitstr)
break;
case ASN1_GEN_FLAG_FORMAT:
+ if (!vstart) {
+ ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_FORMAT);
+ return -1;
+ }
if (!strncmp(vstart, "ASCII", 5))
arg->format = ASN1_GEN_FORMAT_ASCII;
else if (!strncmp(vstart, "UTF8", 4))
arg->format = ASN1_GEN_FORMAT_UTF8;
else if (!strncmp(vstart, "HEX", 3))
arg->format = ASN1_GEN_FORMAT_HEX;
- else if (!strncmp(vstart, "BITLIST", 3))
+ else if (!strncmp(vstart, "BITLIST", 7))
arg->format = ASN1_GEN_FORMAT_BITLIST;
else {
ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKOWN_FORMAT);
@@ -423,14 +455,15 @@ static int parse_tagging(const char *vstart, int vlen, int *ptag, int *pclass)
/* Handle multiple types: SET and SEQUENCE */
-static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf)
+static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
+ int depth, int *perr)
{
- ASN1_TYPE *ret = NULL, *typ = NULL;
+ ASN1_TYPE *ret = NULL;
STACK_OF(ASN1_TYPE) *sk = NULL;
STACK_OF(CONF_VALUE) *sect = NULL;
- unsigned char *der = NULL, *p;
+ unsigned char *der = NULL;
int derlen;
- int i, is_set;
+ int i;
sk = sk_ASN1_TYPE_new_null();
if (!sk)
goto bad;
@@ -441,12 +474,13 @@ static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf)
if (!sect)
goto bad;
for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
- typ = ASN1_generate_v3(sk_CONF_VALUE_value(sect, i)->value, cnf);
+ ASN1_TYPE *typ =
+ generate_v3(sk_CONF_VALUE_value(sect, i)->value, cnf,
+ depth + 1, perr);
if (!typ)
goto bad;
if (!sk_ASN1_TYPE_push(sk, typ))
goto bad;
- typ = NULL;
}
}
@@ -455,18 +489,12 @@ static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf)
*/
if (utype == V_ASN1_SET)
- is_set = 1;
+ derlen = i2d_ASN1_SET_ANY(sk, &der);
else
- is_set = 0;
+ derlen = i2d_ASN1_SEQUENCE_ANY(sk, &der);
- derlen = i2d_ASN1_SET_OF_ASN1_TYPE(sk, NULL, i2d_ASN1_TYPE, utype,
- V_ASN1_UNIVERSAL, is_set);
- der = OPENSSL_malloc(derlen);
- if (!der)
+ if (derlen < 0)
goto bad;
- p = der;
- i2d_ASN1_SET_OF_ASN1_TYPE(sk, &p, i2d_ASN1_TYPE, utype,
- V_ASN1_UNIVERSAL, is_set);
if (!(ret = ASN1_TYPE_new()))
goto bad;
@@ -488,8 +516,6 @@ static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf)
if (sk)
sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
- if (typ)
- ASN1_TYPE_free(typ);
if (sect)
X509V3_section_free(cnf, sect);
@@ -535,7 +561,7 @@ static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
static int asn1_str2tag(const char *tagstr, int len)
{
unsigned int i;
- static struct tag_name_st *tntmp, tnst[] = {
+ static const struct tag_name_st *tntmp, tnst[] = {
ASN1_GEN_STR("BOOL", V_ASN1_BOOLEAN),
ASN1_GEN_STR("BOOLEAN", V_ASN1_BOOLEAN),
ASN1_GEN_STR("NULL", V_ASN1_NULL),
@@ -570,6 +596,8 @@ static int asn1_str2tag(const char *tagstr, int len)
ASN1_GEN_STR("TELETEXSTRING", V_ASN1_T61STRING),
ASN1_GEN_STR("GeneralString", V_ASN1_GENERALSTRING),
ASN1_GEN_STR("GENSTR", V_ASN1_GENERALSTRING),
+ ASN1_GEN_STR("NUMERIC", V_ASN1_NUMERICSTRING),
+ ASN1_GEN_STR("NUMERICSTRING", V_ASN1_NUMERICSTRING),
/* Special cases */
ASN1_GEN_STR("SEQUENCE", V_ASN1_SEQUENCE),
@@ -701,6 +729,7 @@ static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype)
case V_ASN1_VISIBLESTRING:
case V_ASN1_UNIVERSALSTRING:
case V_ASN1_GENERALSTRING:
+ case V_ASN1_NUMERICSTRING:
if (format == ASN1_GEN_FORMAT_ASCII)
format = MBSTRING_ASC;
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-17 11:27:42 +0000