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From: "Richard W.M. Jones" <rjones@redhat.com>
To: sbrivio@redhat.com
Cc: passt-dev@passt.top
Subject: [PATCH passt v2 5/7] XXX build: Add extra syscalls needed by AFL instrumentation
Date: Thu, 17 Nov 2022 18:49:36 +0000	[thread overview]
Message-ID: <20221117184938.2270462-6-rjones@redhat.com> (raw)
In-Reply-To: <20221117184938.2270462-1-rjones@redhat.com>

This is a hack.  Ideally there'd be a way to build a "non-production"
build of passt which would turn off all the encapsulation features.
They are not relevant for fuzzing and simply add overhead.
---
 Makefile | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Makefile b/Makefile
index ced7af2..ee496fe 100644
--- a/Makefile
+++ b/Makefile
@@ -119,6 +119,19 @@ all: $(BIN) $(MANPAGES) docs
 static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
 static: clean all
 
+# XXX Hack for AFL instrumentation
+EXTRA_SYSCALLS += \
+	clone \
+	getpid \
+	gettid \
+	madvise \
+	mmap \
+	mprotect \
+	prctl \
+	rt_sigprocmask \
+	sched_yield \
+	sigaltstack
+
 seccomp.h: seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
 	@ EXTRA_SYSCALLS="$(EXTRA_SYSCALLS)" ./seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
 
-- 
@@ -119,6 +119,19 @@ all: $(BIN) $(MANPAGES) docs
 static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
 static: clean all
 
+# XXX Hack for AFL instrumentation
+EXTRA_SYSCALLS += \
+	clone \
+	getpid \
+	gettid \
+	madvise \
+	mmap \
+	mprotect \
+	prctl \
+	rt_sigprocmask \
+	sched_yield \
+	sigaltstack
+
 seccomp.h: seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
 	@ EXTRA_SYSCALLS="$(EXTRA_SYSCALLS)" ./seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
 
-- 
2.37.0.rc2


  parent reply	other threads:[~2022-11-17 18:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-17 18:49 [PATCH passt v2 0/7] Add fuzzing Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 1/7] build: Force-create pasta symlink Richard W.M. Jones
2022-11-18  1:30   ` David Gibson
2022-11-18  7:56     ` Stefano Brivio
2022-11-17 18:49 ` [PATCH passt v2 2/7] build: Remove *~ files with make clean Richard W.M. Jones
2022-11-18  1:31   ` David Gibson
2022-11-17 18:49 ` [PATCH passt v2 3/7] passt, tap: Add --fd option Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 4/7] passt, tap: Process data on the socket before HUP/ERR events Richard W.M. Jones
2022-11-18  1:32   ` David Gibson
2022-11-17 18:49 ` Richard W.M. Jones [this message]
2022-11-17 18:49 ` [PATCH passt v2 6/7] XXX passt: Kill seccomp and other isolation mechanisms Richard W.M. Jones
2022-11-17 18:49 ` [PATCH passt v2 7/7] Import fuzzing wrapper from libnbd Richard W.M. Jones
2022-11-17 19:06 ` [PATCH passt v2 0/7] Add fuzzing Richard W.M. Jones
2022-11-18 10:12 ` Richard W.M. Jones
2022-11-25  9:23 ` Stefano Brivio
2022-11-25 10:11   ` Richard W.M. Jones
2022-11-29 13:34     ` Stefano Brivio
2022-11-29 13:44       ` Richard W.M. Jones
2022-11-30  1:11       ` David Gibson

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