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-rwxr-xr-xconfigure.ac12
-rw-r--r--doc/user/installation.rst6
-rw-r--r--zebra/kernel_netlink.c104
-rw-r--r--zebra/kernel_netlink.h4
-rw-r--r--zebra/main.c51
-rw-r--r--zebra/zapi_msg.c27
-rw-r--r--zebra/zserv.c11
-rw-r--r--zebra/zserv.h4
8 files changed, 0 insertions, 219 deletions
diff --git a/configure.ac b/configure.ac
index 3c65bc91a0..ae116ef754 100755
--- a/configure.ac
+++ b/configure.ac
@@ -610,10 +610,6 @@ AC_ARG_ENABLE([cumulus],
AS_HELP_STRING([--enable-cumulus], [enable Cumulus Switch Special Extensions]))
AC_ARG_ENABLE([datacenter],
AS_HELP_STRING([--enable-datacenter], [enable Compilation for Data Center Extensions]))
-AC_ARG_ENABLE([fuzzing],
- AS_HELP_STRING([--enable-fuzzing], [enable ability to fuzz various parts of FRR]))
-AC_ARG_ENABLE([netlink_fuzzing],
- AS_HELP_STRING([--enable-netlink-fuzzing], [enable ability to fuzz netlink listening socket in zebra]))
AC_ARG_ENABLE([rr-semantics],
AS_HELP_STRING([--disable-rr-semantics], [disable the v6 Route Replace semantics]))
AC_ARG_ENABLE([protobuf],
@@ -718,14 +714,6 @@ else
DFLT_NAME="traditional"
fi
-if test "$enable_fuzzing" = "yes" ; then
- AC_DEFINE([HANDLE_ZAPI_FUZZING], [1], [Compile extensions to use with a fuzzer])
-fi
-
-if test "$enable_netlink_fuzzing" = "yes" ; then
- AC_DEFINE([HANDLE_NETLINK_FUZZING], [1], [Compile extensions to use with a fuzzer for netlink])
-fi
-
if test "$enable_cumulus" = "yes" ; then
AC_DEFINE([HAVE_CUMULUS], [1], [Compile Special Cumulus Code in])
fi
diff --git a/doc/user/installation.rst b/doc/user/installation.rst
index 622af67b0f..22d1291d90 100644
--- a/doc/user/installation.rst
+++ b/doc/user/installation.rst
@@ -255,12 +255,6 @@ options from the list below.
mind. Specifically turn on -g3 -O0 for compiling options and add inclusion
of grammar sandbox.
-.. option:: --enable-fuzzing
-
- Turn on some compile options to allow you to run fuzzing tools against the
- system. This flag is intended as a developer only tool and should not be
- used for normal operations.
-
.. option:: --disable-snmp
Build without SNMP support.
diff --git a/zebra/kernel_netlink.c b/zebra/kernel_netlink.c
index d0c1bc812d..ec5cc1603b 100644
--- a/zebra/kernel_netlink.c
+++ b/zebra/kernel_netlink.c
@@ -20,12 +20,6 @@
#include <zebra.h>
-#if defined(HANDLE_NETLINK_FUZZING)
-#include <stdio.h>
-#include <string.h>
-#include "libfrr.h"
-#endif /* HANDLE_NETLINK_FUZZING */
-
#ifdef HAVE_NETLINK
#include "linklist.h"
@@ -404,86 +398,6 @@ static int netlink_information_fetch(struct nlmsghdr *h, ns_id_t ns_id,
return 0;
}
-#if defined(HANDLE_NETLINK_FUZZING)
-/* Using globals here to avoid adding function parameters */
-
-/* Keep distinct filenames for netlink fuzzy collection */
-static unsigned int netlink_file_counter = 1;
-
-/* File name to read fuzzed netlink from */
-static char netlink_fuzz_file[MAXPATHLEN] = "";
-
-/* Flag for whether to read from file or not */
-bool netlink_read;
-
-/**
- * netlink_read_init() - Starts the message parser
- * @fname: Filename to read.
- */
-void netlink_read_init(const char *fname)
-{
- struct zebra_dplane_info dp_info;
-
- snprintf(netlink_fuzz_file, MAXPATHLEN, "%s", fname);
- /* Creating this fake socket for testing purposes */
- struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT);
-
- /* Capture key info from zns struct */
- zebra_dplane_info_from_zns(&dp_info, zns, false);
-
- netlink_parse_info(netlink_information_fetch, &zns->netlink,
- &dp_info, 1, 0);
-}
-
-/**
- * netlink_write_incoming() - Writes all data received from netlink to a file
- * @buf: Data from netlink.
- * @size: Size of data.
- * @counter: Counter for keeping filenames distinct.
- */
-static void netlink_write_incoming(const char *buf, const unsigned int size,
- unsigned int counter)
-{
- char fname[MAXPATHLEN];
- FILE *f;
-
- snprintf(fname, MAXPATHLEN, "%s/%s_%u", frr_vtydir, "netlink", counter);
- frr_with_privs(&zserv_privs) {
- f = fopen(fname, "w");
- }
- if (f) {
- fwrite(buf, 1, size, f);
- fclose(f);
- }
-}
-
-/**
- * netlink_read_file() - Reads netlink data from file
- * @buf: Netlink buffer being overwritten.
- * @fname: File name to read from.
- *
- * Return: Size of file.
- */
-static long netlink_read_file(char *buf, const char *fname)
-{
- FILE *f;
- long file_bytes = -1;
-
- frr_with_privs(&zserv_privs) {
- f = fopen(fname, "r");
- }
- if (f) {
- fseek(f, 0, SEEK_END);
- file_bytes = ftell(f);
- rewind(f);
- fread(buf, NL_RCV_PKT_BUF_SIZE, 1, f);
- fclose(f);
- }
- return file_bytes;
-}
-
-#endif /* HANDLE_NETLINK_FUZZING */
-
static int kernel_read(struct thread *thread)
{
struct zebra_ns *zns = (struct zebra_ns *)THREAD_ARG(thread);
@@ -834,18 +748,7 @@ static int netlink_recv_msg(const struct nlsock *nl, struct msghdr msg,
msg.msg_iovlen = 1;
do {
-#if defined(HANDLE_NETLINK_FUZZING)
- /* Check if reading and filename is set */
- if (netlink_read && '\0' != netlink_fuzz_file[0]) {
- zlog_debug("Reading netlink fuzz file");
- status = netlink_read_file(buf, netlink_fuzz_file);
- ((struct sockaddr_nl *)msg.msg_name)->nl_pid = 0;
- } else {
- status = recvmsg(nl->sock, &msg, 0);
- }
-#else
status = recvmsg(nl->sock, &msg, 0);
-#endif /* HANDLE_NETLINK_FUZZING */
} while (status == -1 && errno == EINTR);
if (status == -1) {
@@ -877,13 +780,6 @@ static int netlink_recv_msg(const struct nlsock *nl, struct msghdr msg,
zlog_hexdump(buf, status);
}
-#if defined(HANDLE_NETLINK_FUZZING)
- if (!netlink_read) {
- zlog_debug("Writing incoming netlink message");
- netlink_write_incoming(buf, status, netlink_file_counter++);
- }
-#endif /* HANDLE_NETLINK_FUZZING */
-
return status;
}
diff --git a/zebra/kernel_netlink.h b/zebra/kernel_netlink.h
index c02e16480b..696f9be4f6 100644
--- a/zebra/kernel_netlink.h
+++ b/zebra/kernel_netlink.h
@@ -86,10 +86,6 @@ extern const char *nl_rtproto_to_str(uint8_t rtproto);
extern const char *nl_family_to_str(uint8_t family);
extern const char *nl_rttype_to_str(uint8_t rttype);
-#if defined(HANDLE_NETLINK_FUZZING)
-extern bool netlink_read;
-extern void netlink_read_init(const char *fname);
-#endif /* HANDLE_NETLINK_FUZZING */
extern int netlink_parse_info(int (*filter)(struct nlmsghdr *, ns_id_t, int),
const struct nlsock *nl,
const struct zebra_dplane_info *dp_info,
diff --git a/zebra/main.c b/zebra/main.c
index 64746f7166..cfc45567d7 100644
--- a/zebra/main.c
+++ b/zebra/main.c
@@ -59,10 +59,6 @@
#include "zebra/zebra_opaque.h"
#include "zebra/zebra_srte.h"
-#if defined(HANDLE_NETLINK_FUZZING)
-#include "zebra/kernel_netlink.h"
-#endif /* HANDLE_NETLINK_FUZZING */
-
#define ZEBRA_PTM_SUPPORT
/* process id. */
@@ -284,12 +280,6 @@ int main(int argc, char **argv)
char *vrf_default_name_configured = NULL;
struct sockaddr_storage dummy;
socklen_t dummylen;
-#if defined(HANDLE_ZAPI_FUZZING)
- char *zapi_fuzzing = NULL;
-#endif /* HANDLE_ZAPI_FUZZING */
-#if defined(HANDLE_NETLINK_FUZZING)
- char *netlink_fuzzing = NULL;
-#endif /* HANDLE_NETLINK_FUZZING */
graceful_restart = 0;
vrf_configure_backend(VRF_BACKEND_VRF_LITE);
@@ -301,12 +291,6 @@ int main(int argc, char **argv)
#ifdef HAVE_NETLINK
"s:n"
#endif
-#if defined(HANDLE_ZAPI_FUZZING)
- "c:"
-#endif /* HANDLE_ZAPI_FUZZING */
-#if defined(HANDLE_NETLINK_FUZZING)
- "w:"
-#endif /* HANDLE_NETLINK_FUZZING */
,
longopts,
" -b, --batch Runs in batch mode\n"
@@ -321,12 +305,6 @@ int main(int argc, char **argv)
" -s, --nl-bufsize Set netlink receive buffer size\n"
" --v6-rr-semantics Use v6 RR semantics\n"
#endif /* HAVE_NETLINK */
-#if defined(HANDLE_ZAPI_FUZZING)
- " -c <file> Bypass normal startup and use this file for testing of zapi\n"
-#endif /* HANDLE_ZAPI_FUZZING */
-#if defined(HANDLE_NETLINK_FUZZING)
- " -w <file> Bypass normal startup and use this file for testing of netlink input\n"
-#endif /* HANDLE_NETLINK_FUZZING */
);
while (1) {
@@ -388,21 +366,6 @@ int main(int argc, char **argv)
v6_rr_semantics = true;
break;
#endif /* HAVE_NETLINK */
-#if defined(HANDLE_ZAPI_FUZZING)
- case 'c':
- zapi_fuzzing = optarg;
- break;
-#endif /* HANDLE_ZAPI_FUZZING */
-#if defined(HANDLE_NETLINK_FUZZING)
- case 'w':
- netlink_fuzzing = optarg;
- /* This ensures we are aren't writing any of the
- * startup netlink messages that happen when we
- * just want to read.
- */
- netlink_read = true;
- break;
-#endif /* HANDLE_NETLINK_FUZZING */
default:
frr_help_exit(1);
break;
@@ -489,20 +452,6 @@ int main(int argc, char **argv)
/* Error init */
zebra_error_init();
-#if defined(HANDLE_ZAPI_FUZZING)
- if (zapi_fuzzing) {
- zserv_read_file(zapi_fuzzing);
- exit(0);
- }
-#endif /* HANDLE_ZAPI_FUZZING */
-#if defined(HANDLE_NETLINK_FUZZING)
- if (netlink_fuzzing) {
- netlink_read_init(netlink_fuzzing);
- exit(0);
- }
-#endif /* HANDLE_NETLINK_FUZZING */
-
-
frr_run(zrouter.master);
/* Not reached... */
diff --git a/zebra/zapi_msg.c b/zebra/zapi_msg.c
index 2bcb3502d5..a37a0c93c7 100644
--- a/zebra/zapi_msg.c
+++ b/zebra/zapi_msg.c
@@ -3113,29 +3113,6 @@ void (*const zserv_handlers[])(ZAPI_HANDLER_ARGS) = {
[ZEBRA_CLIENT_CAPABILITIES] = zread_client_capabilities,
[ZEBRA_NEIGH_DISCOVER] = zread_neigh_discover};
-#if defined(HANDLE_ZAPI_FUZZING)
-extern struct zebra_privs_t zserv_privs;
-
-static void zserv_write_incoming(struct stream *orig, uint16_t command)
-{
- char fname[MAXPATHLEN];
- struct stream *copy;
- int fd = -1;
-
- copy = stream_dup(orig);
- stream_set_getp(copy, 0);
-
- snprintf(fname, MAXPATHLEN, "%s/%u", frr_vtydir, command);
-
- frr_with_privs(&zserv_privs) {
- fd = open(fname, O_CREAT | O_WRONLY | O_EXCL, 0644);
- }
- stream_flush(copy, fd);
- close(fd);
- stream_free(copy);
-}
-#endif
-
/*
* Process a batch of zapi messages.
*/
@@ -3166,10 +3143,6 @@ void zserv_handle_commands(struct zserv *client, struct stream_fifo *fifo)
&& IS_ZEBRA_DEBUG_DETAIL)
zserv_log_message(NULL, msg, &hdr);
-#if defined(HANDLE_ZAPI_FUZZING)
- zserv_write_incoming(msg, hdr.command);
-#endif
-
hdr.length -= ZEBRA_HEADER_SIZE;
/* Before checking for a handler function, check for
diff --git a/zebra/zserv.c b/zebra/zserv.c
index cded6ea12b..4c8656af0d 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -1294,17 +1294,6 @@ DEFUN (show_zebra_client_summary,
return CMD_SUCCESS;
}
-#if defined(HANDLE_ZAPI_FUZZING)
-void zserv_read_file(char *input)
-{
- int fd;
-
- fd = open(input, O_RDONLY | O_NONBLOCK);
-
- zserv_client_create(fd);
-}
-#endif
-
void zserv_init(void)
{
/* Client list init. */
diff --git a/zebra/zserv.h b/zebra/zserv.h
index 54e840cd56..c60799b8ba 100644
--- a/zebra/zserv.h
+++ b/zebra/zserv.h
@@ -375,10 +375,6 @@ extern void zserv_close_client(struct zserv *client);
void zserv_log_message(const char *errmsg, struct stream *msg,
struct zmsghdr *hdr);
-#if defined(HANDLE_ZAPI_FUZZING)
-extern void zserv_read_file(char *input);
-#endif
-
/* TODO */
__attribute__((__noreturn__)) int zebra_finalize(struct thread *event);