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提交 bf91a76b 编写于 作者: D Daniel Borkmann
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Merge branch 'bpf-sockmap-selftests' 

John Fastabend says:

====================
This series moves ./samples/sockmap into BPF selftests. There are a
few good reasons to do this. First, by pushing this into selftests
the tests will be run automatically. Second, sockmap was not really
a sample of anything anymore, but rather a large set of tests.

Note: There are three recent fixes outstanding against bpf branch
that can be detected occasionally by the automated tests here.

https://patchwork.ozlabs.org/patch/903138/
https://patchwork.ozlabs.org/patch/903139/
https://patchwork.ozlabs.org/patch/903140/
====================
Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
上级 6595c742 2e04eb1d
展开全部 隐藏空白更改
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Showing with 788 addition and 738 deletion
samples/sockmap/Makefile 已删除 100644 → 0
浏览文件 @ 6595c742
# List of programs to build
hostprogs-y := sockmap
# Libbpf dependencies
LIBBPF := ../../tools/lib/bpf/bpf.o ../../tools/lib/bpf/nlattr.o
HOSTCFLAGS += -I$(objtree)/usr/include
HOSTCFLAGS += -I$(srctree)/tools/lib/
HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include
HOSTCFLAGS += -I$(srctree)/tools/perf
sockmap-objs := ../bpf/bpf_load.o $(LIBBPF) sockmap_user.o
# Tell kbuild to always build the programs
always := $(hostprogs-y)
always += sockmap_kern.o
HOSTLOADLIBES_sockmap += -lelf -lpthread
# Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline:
# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
LLC ?= llc
CLANG ?= clang
# Trick to allow make to be run from this directory
all:
$(MAKE) -C ../../ $(CURDIR)/
clean:
$(MAKE) -C ../../ M=$(CURDIR) clean
@rm -f *~
$(obj)/syscall_nrs.s: $(src)/syscall_nrs.c
$(call if_changed_dep,cc_s_c)
$(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE
$(call filechk,offsets,__SYSCALL_NRS_H__)
clean-files += syscall_nrs.h
FORCE:
# Verify LLVM compiler tools are available and bpf target is supported by llc
.PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC)
verify_cmds: $(CLANG) $(LLC)
@for TOOL in $^ ; do \
if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \
echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\
exit 1; \
else true; fi; \
done
verify_target_bpf: verify_cmds
@if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \
echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\
echo " NOTICE: LLVM version >= 3.7.1 required" ;\
exit 2; \
else true; fi
$(src)/*.c: verify_target_bpf
# asm/sysreg.h - inline assembly used by it is incompatible with llvm.
# But, there is no easy way to fix it, so just exclude it since it is
# useless for BPF samples.
$(obj)/%.o: $(src)/%.c
$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
-Wno-compare-distinct-pointer-types \
-Wno-gnu-variable-sized-type-not-at-end \
-Wno-address-of-packed-member -Wno-tautological-compare \
-Wno-unknown-warning-option \
-O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@
samples/sockmap/sockmap_test.sh 已删除 100755 → 0
浏览文件 @ 6595c742
#Test a bunch of positive cases to verify basic functionality
for prog in "--txmsg_redir --txmsg_skb" "--txmsg_redir --txmsg_ingress" "--txmsg" "--txmsg_redir" "--txmsg_redir --txmsg_ingress" "--txmsg_drop"; do
for t in "sendmsg" "sendpage"; do
for r in 1 10 100; do
for i in 1 10 100; do
for l in 1 10 100; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
done
done
done
done
#Test max iov
t="sendmsg"
r=1
i=1024
l=1
prog="--txmsg"
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
prog="--txmsg_redir"
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
# Test max iov with 1k send
t="sendmsg"
r=1
i=1024
l=1024
prog="--txmsg"
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
prog="--txmsg_redir"
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
# Test apply with 1B
r=1
i=1024
l=1024
prog="--txmsg_apply 1"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply with larger value than send
r=1
i=8
l=1024
prog="--txmsg_apply 2048"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply with apply that never reaches limit
r=1024
i=1
l=1
prog="--txmsg_apply 2048"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply and redirect with 1B
r=1
i=1024
l=1024
prog="--txmsg_redir --txmsg_apply 1"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
prog="--txmsg_redir --txmsg_apply 1 --txmsg_ingress"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
prog="--txmsg_redir --txmsg_apply 1 --txmsg_skb"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply and redirect with larger value than send
r=1
i=8
l=1024
prog="--txmsg_redir --txmsg_apply 2048"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
prog="--txmsg_redir --txmsg_apply 2048 --txmsg_ingress"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
prog="--txmsg_redir --txmsg_apply 2048 --txmsg_skb"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply and redirect with apply that never reaches limit
r=1024
i=1
l=1
prog="--txmsg_apply 2048"
for t in "sendmsg" "sendpage"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with 1B not really useful but test it anyways
r=1
i=1024
l=1024
prog="--txmsg_cork 1"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with a more reasonable 100B
r=1
i=1000
l=1000
prog="--txmsg_cork 100"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with larger value than send
r=1
i=8
l=1024
prog="--txmsg_cork 2048"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with cork that never reaches limit
r=1024
i=1
l=1
prog="--txmsg_cork 2048"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
r=1
i=1024
l=1024
prog="--txmsg_redir --txmsg_cork 1"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with a more reasonable 100B
r=1
i=1000
l=1000
prog="--txmsg_redir --txmsg_cork 100"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with larger value than send
r=1
i=8
l=1024
prog="--txmsg_redir --txmsg_cork 2048"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test cork with cork that never reaches limit
r=1024
i=1
l=1
prog="--txmsg_cork 2048"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# mix and match cork and apply not really useful but valid programs
# Test apply < cork
r=100
i=1
l=5
prog="--txmsg_apply 10 --txmsg_cork 100"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Try again with larger sizes so we hit overflow case
r=100
i=1000
l=2048
prog="--txmsg_apply 4096 --txmsg_cork 8096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply > cork
r=100
i=1
l=5
prog="--txmsg_apply 100 --txmsg_cork 10"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Again with larger sizes so we hit overflow cases
r=100
i=1000
l=2048
prog="--txmsg_apply 8096 --txmsg_cork 4096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply = cork
r=100
i=1
l=5
prog="--txmsg_apply 10 --txmsg_cork 10"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
r=100
i=1000
l=2048
prog="--txmsg_apply 4096 --txmsg_cork 4096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply < cork
r=100
i=1
l=5
prog="--txmsg_redir --txmsg_apply 10 --txmsg_cork 100"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Try again with larger sizes so we hit overflow case
r=100
i=1000
l=2048
prog="--txmsg_redir --txmsg_apply 4096 --txmsg_cork 8096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply > cork
r=100
i=1
l=5
prog="--txmsg_redir --txmsg_apply 100 --txmsg_cork 10"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Again with larger sizes so we hit overflow cases
r=100
i=1000
l=2048
prog="--txmsg_redir --txmsg_apply 8096 --txmsg_cork 4096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Test apply = cork
r=100
i=1
l=5
prog="--txmsg_redir --txmsg_apply 10 --txmsg_cork 10"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
r=100
i=1000
l=2048
prog="--txmsg_redir --txmsg_apply 4096 --txmsg_cork 4096"
for t in "sendpage" "sendmsg"; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog"
echo $TEST
$TEST
sleep 2
done
# Tests for bpf_msg_pull_data()
for i in `seq 99 100 1600`; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 0 --txmsg_end $i --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
done
for i in `seq 199 100 1600`; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 100 --txmsg_end $i --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
done
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 1500 --txmsg_end 1600 --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 1111 --txmsg_end 1112 --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 1111 --txmsg_end 0 --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 0 --txmsg_end 1601 --txmsg_cork 1600"
echo $TEST
$TEST
sleep 2
TEST="./sockmap --cgroup /mnt/cgroup2/ -t sendpage -r 16 -i 1 -l 100 \
--txmsg --txmsg_start 0 --txmsg_end 1601 --txmsg_cork 1602"
echo $TEST
$TEST
sleep 2
# Run through gamut again with start and end
for prog in "--txmsg" "--txmsg_redir" "--txmsg_drop"; do
for t in "sendmsg" "sendpage"; do
for r in 1 10 100; do
for i in 1 10 100; do
for l in 1 10 100; do
TEST="./sockmap --cgroup /mnt/cgroup2/ -t $t -r $r -i $i -l $l $prog --txmsg_start 1 --txmsg_end 2"
echo $TEST
$TEST
sleep 2
done
done
done
done
done
# Some specific tests to cover specific code paths
./sockmap --cgroup /mnt/cgroup2/ -t sendpage \
-r 5 -i 1 -l 1 --txmsg_redir --txmsg_cork 5 --txmsg_apply 3
./sockmap --cgroup /mnt/cgroup2/ -t sendmsg \
-r 5 -i 1 -l 1 --txmsg_redir --txmsg_cork 5 --txmsg_apply 3
./sockmap --cgroup /mnt/cgroup2/ -t sendpage \
-r 5 -i 1 -l 1 --txmsg_redir --txmsg_cork 5 --txmsg_apply 5
./sockmap --cgroup /mnt/cgroup2/ -t sendmsg \
-r 5 -i 1 -l 1 --txmsg_redir --txmsg_cork 5 --txmsg_apply 5
tools/include/uapi/linux/bpf.h
浏览文件 @ bf91a76b
......@@ -894,6 +894,7 @@ enum bpf_func_id {
/* BPF_FUNC_skb_set_tunnel_key flags. */
#define BPF_F_ZERO_CSUM_TX (1ULL << 1)
#define BPF_F_DONT_FRAGMENT (1ULL << 2)
#define BPF_F_SEQ_NUMBER (1ULL << 3)
/* BPF_FUNC_perf_event_output, BPF_FUNC_perf_event_read and
* BPF_FUNC_perf_event_read_value flags.
......
tools/include/uapi/linux/if_link.h
浏览文件 @ bf91a76b
......@@ -941,4 +941,43 @@ enum {
IFLA_EVENT_BONDING_OPTIONS, /* change in bonding options */
};
/* tun section */
enum {
IFLA_TUN_UNSPEC,
IFLA_TUN_OWNER,
IFLA_TUN_GROUP,
IFLA_TUN_TYPE,
IFLA_TUN_PI,
IFLA_TUN_VNET_HDR,
IFLA_TUN_PERSIST,
IFLA_TUN_MULTI_QUEUE,
IFLA_TUN_NUM_QUEUES,
IFLA_TUN_NUM_DISABLED_QUEUES,
__IFLA_TUN_MAX,
};
#define IFLA_TUN_MAX (__IFLA_TUN_MAX - 1)
/* rmnet section */
#define RMNET_FLAGS_INGRESS_DEAGGREGATION (1U << 0)
#define RMNET_FLAGS_INGRESS_MAP_COMMANDS (1U << 1)
#define RMNET_FLAGS_INGRESS_MAP_CKSUMV4 (1U << 2)
#define RMNET_FLAGS_EGRESS_MAP_CKSUMV4 (1U << 3)
enum {
IFLA_RMNET_UNSPEC,
IFLA_RMNET_MUX_ID,
IFLA_RMNET_FLAGS,
__IFLA_RMNET_MAX,
};
#define IFLA_RMNET_MAX (__IFLA_RMNET_MAX - 1)
struct ifla_rmnet_flags {
__u32 flags;
__u32 mask;
};
#endif /* _UAPI_LINUX_IF_LINK_H */
tools/lib/bpf/libbpf.c
浏览文件 @ bf91a76b
......@@ -1961,8 +1961,8 @@ BPF_PROG_TYPE_FNS(raw_tracepoint, BPF_PROG_TYPE_RAW_TRACEPOINT);
BPF_PROG_TYPE_FNS(xdp, BPF_PROG_TYPE_XDP);
BPF_PROG_TYPE_FNS(perf_event, BPF_PROG_TYPE_PERF_EVENT);
static void bpf_program__set_expected_attach_type(struct bpf_program *prog,
enum bpf_attach_type type)
void bpf_program__set_expected_attach_type(struct bpf_program *prog,
enum bpf_attach_type type)
{
prog->expected_attach_type = type;
}
......
tools/lib/bpf/libbpf.h
浏览文件 @ bf91a76b
......@@ -193,6 +193,8 @@ int bpf_program__set_sched_act(struct bpf_program *prog);
int bpf_program__set_xdp(struct bpf_program *prog);
int bpf_program__set_perf_event(struct bpf_program *prog);
void bpf_program__set_type(struct bpf_program *prog, enum bpf_prog_type type);
void bpf_program__set_expected_attach_type(struct bpf_program *prog,
enum bpf_attach_type type);
bool bpf_program__is_socket_filter(struct bpf_program *prog);
bool bpf_program__is_tracepoint(struct bpf_program *prog);
......
tools/testing/selftests/bpf/Makefile
浏览文件 @ bf91a76b
......@@ -24,7 +24,7 @@ urandom_read: urandom_read.c
# Order correspond to 'make run_tests' order
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
test_sock test_btf
test_sock test_btf test_sockmap
TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \
......@@ -32,7 +32,7 @@ TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test
test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \
sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \
sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \
test_btf_haskv.o test_btf_nokv.o
test_btf_haskv.o test_btf_nokv.o test_sockmap_kern.o
# Order correspond to 'make run_tests' order
TEST_PROGS := test_kmod.sh \
......@@ -56,6 +56,7 @@ $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a
$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
$(OUTPUT)/test_sock: cgroup_helpers.c
$(OUTPUT)/test_sock_addr: cgroup_helpers.c
$(OUTPUT)/test_sockmap: cgroup_helpers.c
.PHONY: force
......
samples/sockmap/sockmap_kern.c → tools/testing/selftests/bpf/test_sockmap_kern.c
浏览文件 @ bf91a76b
/* Copyright (c) 2017 Covalent IO, Inc. http://covalent.io
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <uapi/linux/bpf.h>
#include <uapi/linux/if_ether.h>
#include <uapi/linux/if_packet.h>
#include <uapi/linux/ip.h>
#include "../../tools/testing/selftests/bpf/bpf_helpers.h"
#include "../../tools/testing/selftests/bpf/bpf_endian.h"
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2017-2018 Covalent IO, Inc. http://covalent.io
#include <stddef.h>
#include <string.h>
#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/if_packet.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/in.h>
#include <linux/udp.h>
#include <linux/tcp.h>
#include <linux/pkt_cls.h>
#include <sys/socket.h>
#include "bpf_helpers.h"
#include "bpf_endian.h"
/* Sockmap sample program connects a client and a backend together
* using cgroups.
......@@ -337,5 +336,5 @@ int bpf_prog10(struct sk_msg_md *msg)
return SK_DROP;
}
int _version SEC("version") = 1;
char _license[] SEC("license") = "GPL";
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