From 81780e01c60d1a2531b5cbdf096f0487eb8e58b2 Mon Sep 17 00:00:00 2001
From: "Alfred E. Heggestad" <114750+alfredh@users.noreply.github.com>
Date: Fri, 29 Nov 2024 17:11:48 +0100
Subject: [PATCH] test: remove unused fuzz mock

---
 test/CMakeLists.txt |   1 -
 test/mock/fuzz.c    | 110 --------------------------------------------
 test/test.h         |   9 ----
 3 files changed, 120 deletions(-)
 delete mode 100644 test/mock/fuzz.c

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 439094661..62ccbb5f5 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -102,7 +102,6 @@ set(SRCS
   md5.c
   mem.c
   mock/dnssrv.c
-  mock/fuzz.c
   mock/nat.c
   mock/pf.c
   mock/sipsrv.c
diff --git a/test/mock/fuzz.c b/test/mock/fuzz.c
deleted file mode 100644
index dd94a9e93..000000000
--- a/test/mock/fuzz.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/**
- * @file mock/fuzz.c Packet fuzzing
- *
- * Copyright (C) 2010 Creytiv.com
- */
-#include <string.h>
-#include <re.h>
-#include "test.h"
-
-
-#define DEBUG_MODULE "mock/fuzz"
-#define DEBUG_LEVEL 5
-#include <re_dbg.h>
-
-
-struct fuzz {
-	struct tcp_helper *th;
-	struct tcp_conn *tc;
-	size_t packet_count;
-};
-
-
-static void destructor(void *data)
-{
-	struct fuzz *fuzz = data;
-
-	mem_deref(fuzz->th);
-	mem_deref(fuzz->tc);
-}
-
-
-static void apply_fuzzing(struct fuzz *fuzz, struct mbuf *mb)
-{
-	const size_t len = mbuf_get_left(mb);
-	size_t pos;
-	bool flip;
-	unsigned bit;
-
-	if (len == 0)
-		return;
-
-	++fuzz->packet_count;
-
-	pos = rand_u16() % len;
-	bit = rand_u16() % 8;
-
-	/* percent change of corrupt packet */
-	flip = ((rand_u16() % 100) < 33);
-
-	if (flip) {
-		re_printf("### flipped bit on pos %zu\n", pos);
-
-		/* flip a random bit */
-		mbuf_buf(mb)[pos] ^= 1<<bit;
-	}
-}
-
-
-static bool helper_send_handler(int *err, struct mbuf *mb, void *arg)
-{
-	struct fuzz *fuzz = arg;
-	(void)err;
-
-	apply_fuzzing(fuzz, mb);
-
-	return false;
-}
-
-
-static bool helper_recv_handler(int *err, struct mbuf *mb, bool *estab,
-				void *arg)
-{
-	struct fuzz *fuzz = arg;
-	(void)err;
-	(void)estab;
-
-	apply_fuzzing(fuzz, mb);
-
-	return false;
-}
-
-
-int fuzz_register_tcpconn(struct fuzz **fuzzp, struct tcp_conn *tc)
-{
-	struct fuzz *fuzz;
-	int err;
-
-	if (!fuzzp || !tc)
-		return EINVAL;
-
-	fuzz = mem_zalloc(sizeof(*fuzz), destructor);
-	if (!fuzz)
-		return ENOMEM;
-
-	fuzz->tc = mem_ref(tc);
-
-	err = tcp_register_helper(&fuzz->th, tc, -1000, NULL,
-				  helper_send_handler,
-				  helper_recv_handler, fuzz);
-	if (err)
-		goto out;
-
- out:
-	if (err)
-		mem_deref(fuzz);
-	else
-		*fuzzp = fuzz;
-
-	return err;
-}
diff --git a/test/test.h b/test/test.h
index 303b84166..eaf278bd4 100644
--- a/test/test.h
+++ b/test/test.h
@@ -525,15 +525,6 @@ int sip_server_uri(struct sip_server *srv, char *uri, size_t sz,
 		   enum sip_transp tp);
 
 
-/*
- * Packet fuzzing
- */
-
-struct fuzz;
-
-int fuzz_register_tcpconn(struct fuzz **fuzzp, struct tcp_conn *tc);
-
-
 /*
  * Mock DNS-Server
  */