1
0
mirror of https://passt.top/passt synced 2024-12-23 06:05:23 +00:00
passt/Makefile
Stefano Brivio 6655625c30 Makefile: Include seccomp.h in HEADERS and require it for static checkers
Targets running static checkers (cppcheck and clang-tidy) need
seccomp.h, but the latter is not included in HEADERS. Add it.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2022-09-22 16:53:35 +02:00

310 lines
11 KiB
Makefile

# SPDX-License-Identifier: AGPL-3.0-or-later
#
# PASST - Plug A Simple Socket Transport
# for qemu/UNIX domain socket mode
#
# PASTA - Pack A Subtle Tap Abstraction
# for network namespace/tap device mode
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>
RLIMIT_STACK_VAL := $(shell /bin/sh -c 'ulimit -s')
ifeq ($(RLIMIT_STACK_VAL),unlimited)
RLIMIT_STACK_VAL := 1024
endif
# Get 'uname -m'-like architecture description for target
TARGET_ARCH := $(shell $(CC) -dumpmachine | cut -f1 -d- | tr [a-z] [A-Z])
TARGET_ARCH := $(shell echo $(TARGET_ARCH) | sed 's/POWERPC/PPC/')
AUDIT_ARCH := $(shell echo $(TARGET_ARCH) | sed 's/^ARM.*/ARM/')
AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/I[456]86/I386/')
AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPC64/PPC/')
AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPCLE/PPC64LE/')
FLAGS := -Wall -Wextra -pedantic -std=c99 -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
FLAGS += -D_FORTIFY_SOURCE=2 -O2 -pie -fPIE
FLAGS += -DPAGE_SIZE=$(shell getconf PAGE_SIZE)
FLAGS += -DNETNS_RUN_DIR=\"/run/netns\"
FLAGS += -DPASST_AUDIT_ARCH=AUDIT_ARCH_$(AUDIT_ARCH)
FLAGS += -DRLIMIT_STACK_VAL=$(RLIMIT_STACK_VAL)
FLAGS += -DARCH=\"$(TARGET_ARCH)\"
PASST_SRCS = arch.c arp.c checksum.c conf.c dhcp.c dhcpv6.c icmp.c igmp.c \
isolation.c lineread.c mld.c ndp.c netlink.c packet.c passt.c pasta.c \
pcap.c siphash.c tap.c tcp.c tcp_splice.c udp.c util.c
QRAP_SRCS = qrap.c
SRCS = $(PASST_SRCS) $(QRAP_SRCS)
MANPAGES = passt.1 pasta.1 qrap.1
PASST_HEADERS = arch.h arp.h checksum.h conf.h dhcp.h dhcpv6.h icmp.h \
isolation.h lineread.h ndp.h netlink.h packet.h passt.h pasta.h \
pcap.h siphash.h tap.h tcp.h tcp_splice.h udp.h util.h
HEADERS = $(PASST_HEADERS) seccomp.h
# On gcc 11.2, with -O2 and -flto, tcp_hash() and siphash_20b(), if inlined,
# seem to be hitting something similar to:
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78993
# from the pointer arithmetic used from the tcp_tap_handler() path to get the
# remote connection address.
ifeq ($(shell $(CC) -dumpversion),11)
ifneq (,$(filter -flto%,$(FLAGS) $(CFLAGS)))
ifneq (,$(filter -O2,$(FLAGS) $(CFLAGS)))
FLAGS += -DTCP_HASH_NOINLINE
FLAGS += -DSIPHASH_20B_NOINLINE
endif
endif
endif
C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_snd_wnd = 0 };
ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
FLAGS += -DHAS_SND_WND
endif
C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_bytes_acked = 0 };
ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
FLAGS += -DHAS_BYTES_ACKED
endif
C := \#include <linux/tcp.h>\nstruct tcp_info x = { .tcpi_min_rtt = 0 };
ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
FLAGS += -DHAS_MIN_RTT
endif
C := \#include <sys/random.h>\nint main(){int a=getrandom(0, 0, 0);}
ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
FLAGS += -DHAS_GETRANDOM
endif
ifeq ($(shell :|$(CC) -fstack-protector-strong -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
FLAGS += -fstack-protector-strong
endif
prefix ?= /usr/local
exec_prefix ?= $(prefix)
bindir ?= $(exec_prefix)/bin
datarootdir ?= $(prefix)/share
docdir ?= $(datarootdir)/doc/passt
mandir ?= $(datarootdir)/man
man1dir ?= $(mandir)/man1
ifeq ($(TARGET_ARCH),X86_64)
BIN := passt passt.avx2 pasta pasta.avx2 qrap
else
BIN := passt pasta qrap
endif
all: $(BIN) $(MANPAGES) docs
static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
static: clean all
seccomp.h: $(PASST_SRCS) $(PASST_HEADERS)
@ EXTRA_SYSCALLS=$(EXTRA_SYSCALLS) ./seccomp.sh $^
passt: $(PASST_SRCS) $(HEADERS)
$(CC) $(FLAGS) $(CFLAGS) $(PASST_SRCS) -o passt $(LDFLAGS)
passt.avx2: FLAGS += -Ofast -mavx2 -ftree-vectorize -funroll-loops
passt.avx2: $(PASST_SRCS) $(HEADERS)
$(CC) $(filter-out -O2,$(FLAGS) $(CFLAGS)) \
$(PASST_SRCS) -o passt.avx2 $(LDFLAGS)
passt.avx2: passt
pasta.avx2 pasta.1 pasta: pasta%: passt%
ln -s $< $@
qrap: $(QRAP_SRCS) passt.h
$(CC) $(FLAGS) $(CFLAGS) $(QRAP_SRCS) -o qrap $(LDFLAGS)
valgrind: EXTRA_SYSCALLS="rt_sigprocmask rt_sigtimedwait rt_sigaction \
getpid gettid kill clock_gettime mmap munmap open \
unlink gettimeofday futex"
valgrind: FLAGS:=-g -O0 $(filter-out -O%,$(FLAGS))
valgrind: all
.PHONY: clean
clean:
$(RM) $(BIN) *.o seccomp.h pasta.1 \
passt.tar passt.tar.gz *.deb *.rpm \
passt.pid README.plain.md
install: $(BIN) $(MANPAGES) docs
mkdir -p $(DESTDIR)$(bindir) $(DESTDIR)$(man1dir)
cp -d $(BIN) $(DESTDIR)$(bindir)
cp -d $(MANPAGES) $(DESTDIR)$(man1dir)
mkdir -p $(DESTDIR)$(docdir)
cp -d README.plain.md $(DESTDIR)$(docdir)/README.md
cp -d doc/demo.sh $(DESTDIR)$(docdir)
uninstall:
$(RM) $(BIN:%=$(DESTDIR)$(prefix)/bin/%)
$(RM) $(MANPAGES:%=$(DESTDIR)$(man1dir)/%)
$(RM) $(DESTDIR)$(docdir)/README.md
$(RM) $(DESTDIR)$(docdir)/demo.sh
-rmdir $(DESTDIR)$(docdir)
pkgs: static
tar cf passt.tar -P --xform 's//\/usr\/bin\//' $(BIN)
tar rf passt.tar -P --xform 's//\/usr\/share\/man\/man1\//' \
$(MANPAGES)
gzip passt.tar
EMAIL="sbrivio@redhat.com" fakeroot alien --to-deb \
--description="User-mode networking for VMs and namespaces" \
-k --version=$(shell git rev-parse --short HEAD) \
passt.tar.gz
fakeroot alien --to-rpm --target=$(shell uname -m) \
--description="User-mode networking for VMs and namespaces" \
-k --version=g$(shell git rev-parse --short HEAD) passt.tar.gz
# TODO: This hack makes a "plain" Markdown version of README.md that can be
# reasonably shipped as documentation file, while the current README.md is
# definitely intended for web browser consumption. It should probably work the
# other way around: the web version should be obtained by adding HTML and
# JavaScript portions to a plain Markdown, instead. However, cgit needs to use
# a file in the git tree. Find a better way around this.
docs: README.md
@( \
skip=0; \
while read l; do \
case $$l in \
"## Demo") exit 0 ;; \
"<!"*) ;; \
"</"*) skip=1 ;; \
"<"*) skip=2 ;; \
esac; \
\
[ $$skip -eq 0 ] && echo "$$l"; \
[ $$skip -eq 1 ] && skip=0; \
done < README.md; \
) > README.plain.md
# Checkers currently disabled for clang-tidy:
# - llvmlibc-restrict-system-libc-headers
# TODO: this is Linux-only for the moment, nice to fix eventually
#
# - bugprone-macro-parentheses
# - google-readability-braces-around-statements
# - hicpp-braces-around-statements
# - readability-braces-around-statements
# Debatable whether that improves readability, right now it would look
# like a mess
#
# - readability-magic-numbers
# - cppcoreguidelines-avoid-magic-numbers
# TODO: in most cases they are justified, but probably not everywhere
#
# - clang-analyzer-valist.Uninitialized
# TODO: enable once https://bugs.llvm.org/show_bug.cgi?id=41311 is fixed
#
# - clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling
# Probably not doable to impement this without plain memcpy(), memset()
#
# - cppcoreguidelines-init-variables
# Dubious value, would kill readability
#
# - hicpp-signed-bitwise
# Those are needed for syscalls, epoll_wait flags, etc.
#
# - llvm-include-order
# TODO: not really important, but nice to fix eventually
#
# - readability-isolate-declaration
# Dubious value, would kill readability
#
# - bugprone-narrowing-conversions
# - cppcoreguidelines-narrowing-conversions
# TODO: nice to fix eventually
#
# - cppcoreguidelines-avoid-non-const-global-variables
# TODO: check, fix, and more in general constify wherever possible
#
# - altera-unroll-loops
# - altera-id-dependent-backward-branch
# TODO: check paths where it might make sense to improve performance
#
# - bugprone-easily-swappable-parameters
# Not much can be done about them other than being careful
#
# - readability-function-cognitive-complexity
# TODO: split reported functions
#
# - altera-struct-pack-align
# "Poor" alignment needed for structs reflecting message formats/headers
#
# - concurrency-mt-unsafe
# TODO: check again if multithreading is implemented
clang-tidy: $(SRCS) $(HEADERS)
clang-tidy -checks=*,-modernize-*,\
-clang-analyzer-valist.Uninitialized,\
-cppcoreguidelines-init-variables,\
-bugprone-macro-parentheses,\
-google-readability-braces-around-statements,\
-hicpp-braces-around-statements,\
-readability-braces-around-statements,\
-readability-magic-numbers,\
-llvmlibc-restrict-system-libc-headers,\
-hicpp-signed-bitwise,\
-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,\
-llvm-include-order,\
-cppcoreguidelines-avoid-magic-numbers,\
-readability-isolate-declaration,\
-bugprone-narrowing-conversions,\
-cppcoreguidelines-narrowing-conversions,\
-cppcoreguidelines-avoid-non-const-global-variables,\
-altera-unroll-loops,-altera-id-dependent-backward-branch,\
-bugprone-easily-swappable-parameters,\
-readability-function-cognitive-complexity,\
-altera-struct-pack-align,\
-concurrency-mt-unsafe \
-config='{CheckOptions: [{key: bugprone-suspicious-string-compare.WarnOnImplicitComparison, value: "false"}]}' \
--warnings-as-errors=* $(SRCS) -- $(filter-out -pie,$(FLAGS) $(CFLAGS))
ifeq ($(shell $(CC) -v 2>&1 | grep -c "gcc version"),1)
TARGET := $(shell ${CC} -v 2>&1 | sed -n 's/Target: \(.*\)/\1/p')
VER := $(shell $(CC) -dumpversion)
EXTRA_INCLUDES := /usr/lib/gcc/$(TARGET)/$(VER)/include
EXTRA_INCLUDES_OPT := -I$(EXTRA_INCLUDES)
else
EXTRA_INCLUDES_OPT :=
endif
cppcheck: $(SRCS) $(HEADERS)
cppcheck --std=c99 --error-exitcode=1 --enable=all --force \
--inconclusive --library=posix \
-I/usr/include $(EXTRA_INCLUDES_OPT) \
\
--suppress=syntaxError:/usr/include/stdlib.h \
--suppress=missingIncludeSystem \
--suppress="*:$(EXTRA_INCLUDES)/avx512fintrin.h" \
--suppress="*:$(EXTRA_INCLUDES)/xmmintrin.h" \
--suppress="*:$(EXTRA_INCLUDES)/emmintrin.h" \
--suppress="*:$(EXTRA_INCLUDES)/avxintrin.h" \
--suppress="*:$(EXTRA_INCLUDES)/bmiintrin.h" \
\
--suppress=objectIndex:tcp.c --suppress=objectIndex:udp.c \
--suppress=va_list_usedBeforeStarted:util.c \
--suppress=unusedFunction \
--suppress=knownConditionTrueFalse:conf.c \
--suppress=strtokCalled:conf.c --suppress=strtokCalled:qrap.c \
--suppress=getpwnamCalled:passt.c \
--suppress=localtimeCalled:pcap.c \
--suppress=unusedStructMember:pcap.c \
--suppress=funcArgNamesDifferent:util.h \
--suppress=unusedStructMember:dhcp.c \
\
--suppress=unmatchedSuppression:conf.c \
--suppress=unmatchedSuppression:dhcp.c \
--suppress=unmatchedSuppression:passt.c \
--suppress=unmatchedSuppression:pcap.c \
--suppress=unmatchedSuppression:qrap.c \
--suppress=unmatchedSuppression:tcp.c \
--suppress=unmatchedSuppression:udp.c \
--suppress=unmatchedSuppression:util.c \
--suppress=unmatchedSuppression:util.h \
$(filter -D%,$(FLAGS) $(CFLAGS)) \
.