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- /* Copyright (c) 2016, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #include "orconfig.h"
- #define BUFFERS_PRIVATE
- #define DIRECTORY_PRIVATE
- #include "or.h"
- #include "backtrace.h"
- #include "buffers.h"
- #include "config.h"
- #include "connection.h"
- #include "directory.h"
- #include "torlog.h"
- #include "fuzzing.h"
- static int mock_get_options_calls = 0;
- static or_options_t *mock_options = NULL;
- static void
- reset_options(or_options_t *options, int *get_options_calls)
- {
- memset(options, 0, sizeof(or_options_t));
- options->TestingTorNetwork = 1;
- *get_options_calls = 0;
- }
- static const or_options_t*
- mock_get_options(void)
- {
- ++mock_get_options_calls;
- tor_assert(mock_options);
- return mock_options;
- }
- static void
- mock_connection_write_to_buf_impl_(const char *string, size_t len,
- connection_t *conn, int zlib)
- {
- log_debug(LD_GENERAL, "%sResponse:\n%zu\nConnection: %p\n%s\n",
- zlib ? "Compressed " : "", len, conn, string);
- }
- int
- fuzz_init(void)
- {
- mock_options = tor_malloc(sizeof(or_options_t));
- reset_options(mock_options, &mock_get_options_calls);
- MOCK(get_options, mock_get_options);
- /* Set up fake response handler */
- MOCK(connection_write_to_buf_impl_, mock_connection_write_to_buf_impl_);
- return 0;
- }
- int
- fuzz_cleanup(void)
- {
- tor_free(mock_options);
- UNMOCK(get_options);
- UNMOCK(connection_write_to_buf_impl_);
- return 0;
- }
- int
- fuzz_main(const uint8_t *stdin_buf, size_t data_size)
- {
- dir_connection_t dir_conn;
- /* Set up the fake connection */
- memset(&dir_conn, 0, sizeof(dir_connection_t));
- dir_conn.base_.type = CONN_TYPE_DIR;
- /* Apparently tor sets this before directory_handle_command() is called. */
- dir_conn.base_.address = tor_strdup("replace-this-address.example.com");
- dir_conn.base_.inbuf = buf_new_with_data((char*)stdin_buf, data_size);
- if (!dir_conn.base_.inbuf) {
- log_debug(LD_GENERAL, "Zero-Length-Input\n");
- return 0;
- }
- /* Parse the headers */
- int rv = directory_handle_command(&dir_conn);
- /* TODO: check the output is correctly parsed based on the input */
- /* Report the parsed origin address */
- if (dir_conn.base_.address) {
- log_debug(LD_GENERAL, "Address:\n%s\n", dir_conn.base_.address);
- }
- log_debug(LD_GENERAL, "Result:\n%d\n", rv);
- /* Reset. */
- tor_free(dir_conn.base_.address);
- buf_free(dir_conn.base_.inbuf);
- dir_conn.base_.inbuf = NULL;
- return 0;
- }
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