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/*
Fuzz dcerpc_parse_binding
Copyright (C) Catalyst IT 2020
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "librpc/gen_ndr/ndr_epmapper.h"
#include "librpc/rpc/dcerpc.h"
#include "fuzzing/fuzzing.h"
#define MAX_LENGTH (1024 * 10)
char buf[MAX_LENGTH + 1];
int LLVMFuzzerTestOneInput(const uint8_t *input, size_t len)
{
TALLOC_CTX *mem_ctx = NULL;
struct dcerpc_binding *binding = NULL;
struct dcerpc_binding *dup = NULL;
struct epm_tower tower;
NTSTATUS status;
struct GUID guid;
if (len > MAX_LENGTH) {
return 0;
}
memcpy(buf, input, len);
buf[len] = '\0';
mem_ctx = talloc_new(NULL);
status = dcerpc_parse_binding(mem_ctx, buf, &binding);
if (! NT_STATUS_IS_OK(status)) {
talloc_free(mem_ctx);
return 0;
}
/* If the string parses, we try manipulating it a bit */
dcerpc_binding_string(mem_ctx, binding);
dcerpc_binding_get_abstract_syntax(binding);
dup = dcerpc_binding_dup(mem_ctx, binding);
status = dcerpc_binding_build_tower(mem_ctx,
binding,
&tower);
if (NT_STATUS_IS_OK(status)) {
status = dcerpc_binding_from_tower(mem_ctx,
&tower,
&dup);
}
guid = dcerpc_binding_get_object(binding);
talloc_free(mem_ctx);
return 0;
}
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
return 0;
}
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