mirror of
https://passt.top/passt
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66a95e331e
Pass to seccomp.sh a list of additional syscalls valgrind needs as EXTRA_SYSCALLS in a new 'valgrind' make target, and add corresponding support in seccomp.sh itself. In test setup functions, start passt with valgrind, but not for performance tests. Add tests checking that valgrind exits without errors after all the other tests in the group are done. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
285 lines
9.8 KiB
Makefile
285 lines
9.8 KiB
Makefile
# SPDX-License-Identifier: AGPL-3.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# PASTA - Pack A Subtle Tap Abstraction
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# for network namespace/tap device mode
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#
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# Copyright (c) 2021 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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RLIMIT_STACK_VAL := $(shell /bin/sh -c 'ulimit -s')
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ifeq ($(RLIMIT_STACK_VAL),unlimited)
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RLIMIT_STACK_VAL := 1024
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endif
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# Get 'uname -m'-like architecture description for target
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TARGET_ARCH := $(shell $(CC) -dumpmachine | cut -f1 -d- | tr [a-z] [A-Z])
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TARGET_ARCH := $(shell echo $(TARGET_ARCH) | sed 's/POWERPC/PPC/')
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AUDIT_ARCH := $(shell echo $(TARGET_ARCH) | sed 's/^ARM.*/ARM/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/I[456]86/I386/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPC64/PPC/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPCLE/PPC64LE/')
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CFLAGS += -Wall -Wextra -pedantic -std=c99 -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
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CFLAGS += -D_FORTIFY_SOURCE=2 -O2 -pie -fPIE
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CFLAGS += -DPAGE_SIZE=$(shell getconf PAGE_SIZE)
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CFLAGS += -DNETNS_RUN_DIR=\"/run/netns\"
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CFLAGS += -DPASST_AUDIT_ARCH=AUDIT_ARCH_$(AUDIT_ARCH)
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CFLAGS += -DRLIMIT_STACK_VAL=$(RLIMIT_STACK_VAL)
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CFLAGS += -DARCH=\"$(TARGET_ARCH)\"
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# On gcc 11.2, with -O2 and -flto, tcp_hash() and siphash_20b(), if inlined,
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# seem to be hitting something similar to:
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78993
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# from the pointer arithmetic used from the tcp_tap_handler() path to get the
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# remote connection address.
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ifeq ($(shell $(CC) -dumpversion),11)
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ifneq (,$(filter -flto%,$(CFLAGS)))
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ifneq (,$(filter -O2,$(CFLAGS)))
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CFLAGS += -DTCP_HASH_NOINLINE
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CFLAGS += -DSIPHASH_20B_NOINLINE
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endif
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endif
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endif
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C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_snd_wnd = 0 };
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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CFLAGS += -DHAS_SND_WND
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endif
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C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_bytes_acked = 0 };
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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CFLAGS += -DHAS_BYTES_ACKED
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endif
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C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_min_rtt = 0 };
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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CFLAGS += -DHAS_MIN_RTT
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endif
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C := \#include <sys/random.h>\nint main(){int a=getrandom(0, 0, 0);}
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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CFLAGS += -DHAS_GETRANDOM
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endif
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ifeq ($(shell :|$(CC) -fstack-protector-strong -S -xc - >/dev/null 2>&1; echo $$?),0)
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CFLAGS += -fstack-protector-strong
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endif
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prefix ?= /usr/local
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ifeq ($(TARGET_ARCH),X86_64)
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all: passt passt.avx2 pasta pasta.avx2 qrap
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BIN := passt passt.avx2 pasta pasta.avx2 qrap
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else
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all: passt pasta qrap
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BIN := passt pasta qrap
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endif
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static: CFLAGS += -static -DGLIBC_NO_STATIC_NSS
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static: clean all
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seccomp.h: *.c $(filter-out seccomp.h,$(wildcard *.h))
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@ EXTRA_SYSCALLS=$(EXTRA_SYSCALLS) ./seccomp.sh
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passt: $(filter-out qrap.c,$(wildcard *.c)) \
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$(filter-out qrap.h,$(wildcard *.h)) seccomp.h
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$(CC) $(CFLAGS) $(filter-out qrap.c,$(wildcard *.c)) -o passt
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passt.avx2: CFLAGS += -Ofast -mavx2 -ftree-vectorize -funroll-loops
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passt.avx2: $(filter-out qrap.c,$(wildcard *.c)) \
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$(filter-out qrap.h,$(wildcard *.h)) seccomp.h
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$(CC) $(filter-out -O2,$(CFLAGS)) $(filter-out qrap.c,$(wildcard *.c)) \
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-o passt.avx2
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passt.avx2: passt
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pasta.avx2: passt.avx2
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ln -s passt.avx2 pasta.avx2
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pasta: passt
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ln -s passt pasta
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ln -s passt.1 pasta.1
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qrap: qrap.c passt.h
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$(CC) $(CFLAGS) \
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qrap.c -o qrap
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valgrind: EXTRA_SYSCALLS="rt_sigprocmask rt_sigtimedwait rt_sigaction \
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getpid gettid kill clock_gettime mmap munmap open \
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unlink exit_group gettimeofday"
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valgrind: CFLAGS:=-g -O0 $(filter-out -O%,$(CFLAGS))
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valgrind: all
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.PHONY: clean
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clean:
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-${RM} passt passt.avx2 *.o seccomp.h qrap pasta pasta.avx2 pasta.1 \
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passt.tar passt.tar.gz *.deb *.rpm
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install: $(BIN)
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mkdir -p $(DESTDIR)$(prefix)/bin $(DESTDIR)$(prefix)/share/man/man1
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cp -d $(BIN) $(DESTDIR)$(prefix)/bin
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cp -d passt.1 pasta.1 qrap.1 $(DESTDIR)$(prefix)/share/man/man1
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uninstall:
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-${RM} $(DESTDIR)$(prefix)/bin/passt
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-${RM} $(DESTDIR)$(prefix)/bin/passt.avx2
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-${RM} $(DESTDIR)$(prefix)/bin/pasta
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-${RM} $(DESTDIR)$(prefix)/bin/pasta.avx2
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-${RM} $(DESTDIR)$(prefix)/bin/qrap
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-${RM} $(DESTDIR)$(prefix)/share/man/man1/passt.1
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-${RM} $(DESTDIR)$(prefix)/share/man/man1/pasta.1
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-${RM} $(DESTDIR)$(prefix)/share/man/man1/qrap.1
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pkgs: static
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tar cf passt.tar -P --xform 's//\/usr\/bin\//' $(BIN)
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tar rf passt.tar -P --xform 's//\/usr\/share\/man\/man1\//' \
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passt.1 pasta.1 qrap.1
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gzip passt.tar
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EMAIL="sbrivio@redhat.com" fakeroot alien --to-deb \
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--description="User-mode networking for VMs and namespaces" \
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-k --version=$(shell git rev-parse --short HEAD) \
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passt.tar.gz
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fakeroot alien --to-rpm --target=$(shell uname -m) \
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--description="User-mode networking for VMs and namespaces" \
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-k --version=g$(shell git rev-parse --short HEAD) passt.tar.gz
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# Checkers currently disabled for clang-tidy:
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# - llvmlibc-restrict-system-libc-headers
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# TODO: this is Linux-only for the moment, nice to fix eventually
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#
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# - bugprone-macro-parentheses
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# - google-readability-braces-around-statements
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# - hicpp-braces-around-statements
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# - readability-braces-around-statements
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# Debatable whether that improves readability, right now it would look
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# like a mess
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#
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# - readability-magic-numbers
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# - cppcoreguidelines-avoid-magic-numbers
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# TODO: in most cases they are justified, but probably not everywhere
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#
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# - clang-analyzer-valist.Uninitialized
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# TODO: enable once https://bugs.llvm.org/show_bug.cgi?id=41311 is fixed
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#
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# - clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling
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# Probably not doable to impement this without plain memcpy(), memset()
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#
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# - cppcoreguidelines-init-variables
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# Dubious value, would kill readability
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#
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# - hicpp-signed-bitwise
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# Those are needed for syscalls, epoll_wait flags, etc.
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#
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# - llvm-include-order
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# TODO: not really important, but nice to fix eventually
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#
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# - readability-isolate-declaration
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# Dubious value, would kill readability
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#
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# - android-cloexec-open
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# - android-cloexec-pipe
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# - android-cloexec-pipe2
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# - android-cloexec-epoll-create1
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# - android-cloexec-inotify-init1
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# TODO: check, fix except for the few cases where we need to share fds
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#
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# - bugprone-narrowing-conversions
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# - cppcoreguidelines-narrowing-conversions
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# TODO: nice to fix eventually
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#
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# - cppcoreguidelines-avoid-non-const-global-variables
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# TODO: check, fix, and more in general constify wherever possible
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#
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# - bugprone-suspicious-string-compare
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# Return value of memcmp(), not really suspicious
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#
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# - altera-unroll-loops
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# - altera-id-dependent-backward-branch
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# TODO: check paths where it might make sense to improve performance
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#
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# - bugprone-easily-swappable-parameters
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# Not much can be done about them other than being careful
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#
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# - readability-function-cognitive-complexity
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# TODO: split reported functions
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#
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# - altera-struct-pack-align
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# "Poor" alignment needed for structs reflecting message formats/headers
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#
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# - concurrency-mt-unsafe
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# TODO: check again if multithreading is implemented
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clang-tidy: $(wildcard *.c) $(wildcard *.h)
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clang-tidy -checks=*,-modernize-*,\
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-clang-analyzer-valist.Uninitialized,\
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-cppcoreguidelines-init-variables,\
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-bugprone-macro-parentheses,\
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-google-readability-braces-around-statements,\
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-hicpp-braces-around-statements,\
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-readability-braces-around-statements,\
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-readability-magic-numbers,\
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-llvmlibc-restrict-system-libc-headers,\
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-hicpp-signed-bitwise,\
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-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,\
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-llvm-include-order,\
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-cppcoreguidelines-avoid-magic-numbers,\
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-readability-isolate-declaration,\
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-android-cloexec-open,-android-cloexec-pipe,-android-cloexec-pipe2,\
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-android-cloexec-epoll-create1,-android-cloexec-inotify-init1,\
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-bugprone-narrowing-conversions,\
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-cppcoreguidelines-narrowing-conversions,\
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-cppcoreguidelines-avoid-non-const-global-variables,\
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-bugprone-suspicious-string-compare,\
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-altera-unroll-loops,-altera-id-dependent-backward-branch,\
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-bugprone-easily-swappable-parameters,\
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-readability-function-cognitive-complexity,\
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-altera-struct-pack-align,\
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-concurrency-mt-unsafe \
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--warnings-as-errors=* $(wildcard *.c) -- $(filter-out -pie,$(CFLAGS))
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ifeq ($(shell $(CC) -v 2>&1 | grep -c "gcc version"),1)
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TARGET := $(shell ${CC} -v 2>&1 | sed -n 's/Target: \(.*\)/\1/p')
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VER := $(shell $(CC) -dumpversion)
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EXTRA_INCLUDES := /usr/lib/gcc/$(TARGET)/$(VER)/include
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EXTRA_INCLUDES_OPT := -I$(EXTRA_INCLUDES)
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else
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EXTRA_INCLUDES_OPT :=
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endif
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cppcheck: $(wildcard *.c) $(wildcard *.h)
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cppcheck --std=c99 --error-exitcode=1 --enable=all --force \
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--inconclusive --library=posix \
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-I/usr/include $(EXTRA_INCLUDES_OPT) \
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\
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--suppress=syntaxError:/usr/include/stdlib.h \
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--suppress=missingIncludeSystem \
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--suppress="*:$(EXTRA_INCLUDES)/avx512fintrin.h" \
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--suppress="*:$(EXTRA_INCLUDES)/xmmintrin.h" \
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--suppress="*:$(EXTRA_INCLUDES)/emmintrin.h" \
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--suppress="*:$(EXTRA_INCLUDES)/avxintrin.h" \
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--suppress="*:$(EXTRA_INCLUDES)/bmiintrin.h" \
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\
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--suppress=objectIndex:tcp.c --suppress=objectIndex:udp.c \
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--suppress=va_list_usedBeforeStarted:util.c \
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--suppress=unusedFunction \
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--suppress=knownConditionTrueFalse:conf.c \
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--suppress=strtokCalled:conf.c --suppress=strtokCalled:qrap.c \
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--suppress=getpwnamCalled:passt.c \
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--suppress=localtimeCalled:pcap.c \
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--suppress=unusedStructMember:pcap.c \
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--suppress=funcArgNamesDifferent:util.h \
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\
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--suppress=unmatchedSuppression:conf.c \
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--suppress=unmatchedSuppression:passt.c \
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--suppress=unmatchedSuppression:pcap.c \
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--suppress=unmatchedSuppression:qrap.c \
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--suppress=unmatchedSuppression:tcp.c \
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--suppress=unmatchedSuppression:udp.c \
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--suppress=unmatchedSuppression:util.c \
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--suppress=unmatchedSuppression:util.h \
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$(filter -D%,$(CFLAGS)) \
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.
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