summaryrefslogtreecommitdiff
path: root/source4/libcli/util
diff options
context:
space:
mode:
Diffstat (limited to 'source4/libcli/util')
-rw-r--r--source4/libcli/util/asn1.c61
1 files changed, 34 insertions, 27 deletions
diff --git a/source4/libcli/util/asn1.c b/source4/libcli/util/asn1.c
index e64ffdf86c..d02f6be9c7 100644
--- a/source4/libcli/util/asn1.c
+++ b/source4/libcli/util/asn1.c
@@ -21,12 +21,16 @@
#include "includes.h"
#include "libcli/util/asn_1.h"
+/* allocate an asn1 structure */
+struct asn1_data *asn1_init(TALLOC_CTX *mem_ctx)
+{
+ return talloc_zero(NULL, struct asn1_data);
+}
+
/* free an asn1 structure */
void asn1_free(struct asn1_data *data)
{
- talloc_free(data->data);
- ZERO_STRUCTP(data);
- data->has_error = True;
+ talloc_free(data);
}
/* write to the ASN1 buffer, advancing the buffer pointer */
@@ -35,7 +39,7 @@ BOOL asn1_write(struct asn1_data *data, const void *p, int len)
if (data->has_error) return False;
if (data->length < data->ofs+len) {
uint8_t *newp;
- newp = talloc_realloc(NULL, data->data, uint8_t, data->ofs+len);
+ newp = talloc_realloc(data, data->data, uint8_t, data->ofs+len);
if (!newp) {
asn1_free(data);
data->has_error = True;
@@ -61,7 +65,7 @@ BOOL asn1_push_tag(struct asn1_data *data, uint8_t tag)
struct nesting *nesting;
asn1_write_uint8(data, tag);
- nesting = talloc(NULL, struct nesting);
+ nesting = talloc(data, struct nesting);
if (!nesting) {
data->has_error = True;
return False;
@@ -341,7 +345,7 @@ BOOL asn1_check_BOOLEAN(struct asn1_data *data, BOOL v)
BOOL asn1_load(struct asn1_data *data, DATA_BLOB blob)
{
ZERO_STRUCTP(data);
- data->data = talloc_memdup(NULL, blob.data, blob.length);
+ data->data = talloc_memdup(data, blob.data, blob.length);
if (!data->data) {
data->has_error = True;
return False;
@@ -417,7 +421,7 @@ BOOL asn1_start_tag(struct asn1_data *data, uint8_t tag)
data->has_error = True;
return False;
}
- nesting = talloc(NULL, struct nesting);
+ nesting = talloc(data, struct nesting);
if (!nesting) {
data->has_error = True;
return False;
@@ -494,7 +498,7 @@ int asn1_tag_remaining(struct asn1_data *data)
}
/* read an object ID from a data blob */
-BOOL ber_read_OID_String(DATA_BLOB blob, const char **OID)
+BOOL ber_read_OID_String(TALLOC_CTX *mem_ctx, DATA_BLOB blob, const char **OID)
{
int i;
uint8_t *b;
@@ -505,7 +509,7 @@ BOOL ber_read_OID_String(DATA_BLOB blob, const char **OID)
b = blob.data;
- tmp_oid = talloc_asprintf(NULL, "%u", b[0]/40);
+ tmp_oid = talloc_asprintf(mem_ctx, "%u", b[0]/40);
if (!tmp_oid) goto nomem;
tmp_oid = talloc_asprintf_append(tmp_oid, ".%u", b[0]%40);
if (!tmp_oid) goto nomem;
@@ -532,7 +536,7 @@ nomem:
}
/* read an object ID from a ASN1 buffer */
-BOOL asn1_read_OID(struct asn1_data *data, const char **OID)
+BOOL asn1_read_OID(struct asn1_data *data, TALLOC_CTX *mem_ctx, const char **OID)
{
DATA_BLOB blob;
int len;
@@ -558,7 +562,7 @@ BOOL asn1_read_OID(struct asn1_data *data, const char **OID)
return False;
}
- if (!ber_read_OID_String(blob, OID)) {
+ if (!ber_read_OID_String(mem_ctx, blob, OID)) {
data->has_error = True;
data_blob_free(&blob);
return False;
@@ -573,9 +577,10 @@ BOOL asn1_check_OID(struct asn1_data *data, const char *OID)
{
const char *id;
- if (!asn1_read_OID(data, &id)) return False;
+ if (!asn1_read_OID(data, data, &id)) return False;
if (strcmp(id, OID) != 0) {
+ talloc_free(discard_const(id));
data->has_error = True;
return False;
}
@@ -584,7 +589,7 @@ BOOL asn1_check_OID(struct asn1_data *data, const char *OID)
}
/* read a LDAPString from a ASN1 buffer */
-BOOL asn1_read_LDAPString(struct asn1_data *data, char **s)
+BOOL asn1_read_LDAPString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s)
{
int len;
len = asn1_tag_remaining(data);
@@ -592,7 +597,7 @@ BOOL asn1_read_LDAPString(struct asn1_data *data, char **s)
data->has_error = True;
return False;
}
- *s = talloc_size(NULL, len+1);
+ *s = talloc_size(mem_ctx, len+1);
if (! *s) {
data->has_error = True;
return False;
@@ -604,16 +609,16 @@ BOOL asn1_read_LDAPString(struct asn1_data *data, char **s)
/* read a GeneralString from a ASN1 buffer */
-BOOL asn1_read_GeneralString(struct asn1_data *data, char **s)
+BOOL asn1_read_GeneralString(struct asn1_data *data, TALLOC_CTX *mem_ctx, char **s)
{
if (!asn1_start_tag(data, ASN1_GENERAL_STRING)) return False;
- if (!asn1_read_LDAPString(data, s)) return False;
+ if (!asn1_read_LDAPString(data, mem_ctx, s)) return False;
return asn1_end_tag(data);
}
/* read a octet string blob */
-BOOL asn1_read_OctetString(struct asn1_data *data, DATA_BLOB *blob)
+BOOL asn1_read_OctetString(struct asn1_data *data, TALLOC_CTX *mem_ctx, DATA_BLOB *blob)
{
int len;
ZERO_STRUCTP(blob);
@@ -623,7 +628,7 @@ BOOL asn1_read_OctetString(struct asn1_data *data, DATA_BLOB *blob)
data->has_error = True;
return False;
}
- *blob = data_blob(NULL, len+1);
+ *blob = data_blob_talloc(mem_ctx, NULL, len+1);
if (!blob->data) {
data->has_error = True;
return False;
@@ -727,19 +732,21 @@ BOOL asn1_write_enumerated(struct asn1_data *data, uint8_t v)
*/
NTSTATUS asn1_full_tag(DATA_BLOB blob, uint8_t tag, size_t *packet_size)
{
- struct asn1_data asn1;
+ struct asn1_data *asn1 = asn1_init(NULL);
int size;
- ZERO_STRUCT(asn1);
- asn1.data = blob.data;
- asn1.length = blob.length;
- asn1_start_tag(&asn1, tag);
- if (asn1.has_error) {
- talloc_free(asn1.nesting);
+ NT_STATUS_HAVE_NO_MEMORY(asn1);
+
+ asn1->data = blob.data;
+ asn1->length = blob.length;
+ asn1_start_tag(asn1, tag);
+ if (asn1->has_error) {
+ talloc_free(asn1);
return STATUS_MORE_ENTRIES;
}
- size = asn1_tag_remaining(&asn1) + asn1.ofs;
- talloc_free(asn1.nesting);
+ size = asn1_tag_remaining(asn1) + asn1->ofs;
+
+ talloc_free(asn1);
if (size > blob.length) {
return STATUS_MORE_ENTRIES;
generated by cgit (git 2.34.1) at 2024-12-04 08:48:23 +0000