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Jussi Maki 6fd5fb6382 selftests/bpf: Add test for l3 use of bpf_redirect_peer 
Add a test case for using bpf_skb_change_head() in combination with
bpf_redirect_peer() to redirect a packet from a L3 device to veth and back.

The test uses a BPF program that adds L2 headers to the packet coming
from a L3 device and then calls bpf_redirect_peer() to redirect the packet
to a veth device. The test fails as skb->mac_len is not set properly and
thus the ethernet headers are not properly skb_pull'd in cls_bpf_classify(),
causing tcp_v4_rcv() to point the TCP header into middle of the IP header.

Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210525102955.2811090-1-joamaki@gmail.com
2021-05-25 18:00:28 +02:00
..
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
align.c
selftests/bpf: Fix "dubious pointer arithmetic" test
2020-12-10 13:11:30 -08:00
atomic_bounds.c
selftests/bpf: Add missing cleanup in atomic_bounds test
2021-02-08 17:55:01 -08:00
atomics.c
bpf: Add tests for new BPF atomic operations
2021-01-14 18:34:29 -08:00
attach_probe.c
selftests/bpf: Fix test_attach_probe for powerpc uprobes
2021-03-08 08:43:20 -08:00
autoload.c
selftests/bpf: Test auto-load disabling logic for BPF programs
2020-06-28 10:06:53 -07:00
bind_perm.c
selftests/bpf: Verify that rebinding to port < 1024 from BPF works
2021-01-27 18:18:15 -08:00
bpf_iter.c
bpf/selftests: Add bpf_get_task_stack retval bounds test_prog
2021-04-19 18:23:33 -07:00
bpf_obj_id.c
selftest/bpf: Fix compilation warnings in 32-bit mode
2020-08-13 16:45:41 -07:00
bpf_tcp_ca.c
bpf/selftests: Test that kernel rejects a TCP CC with an invalid license
2021-03-26 17:51:02 +01:00
bpf_verif_scale.c
selftests/bpf: Add a verifier scale test with unknown bounded loop
2021-03-04 16:44:00 +01:00
btf_dedup_split.c
selftests/bpf: Add split BTF dedup selftests
2020-11-05 18:37:31 -08:00
btf_dump.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
btf_endian.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
btf_map_in_map.c
selftests/bpf: Sync RCU before unloading bpf_testmod
2021-01-12 17:23:47 -08:00
btf_skc_cls_ingress.c
bpf: selftest: Use static globals in tcp_hdr_options and btf_skc_cls_ingress
2020-11-09 16:18:36 -08:00
btf_split.c
selftests/bpf: Add split BTF basic test
2020-11-05 18:37:30 -08:00
btf_write.c
selftests/bpf: Add checking of raw type dump in BTF writer APIs selftests
2020-11-05 18:37:30 -08:00
btf.c
selftests/bpf: Add BTF_KIND_FLOAT to the existing deduplication tests
2021-03-04 17:58:16 -08:00
cg_storage_multi.c
selftests/bpf: Don't destroy failed link
2020-07-31 00:43:49 +02:00
cgroup_attach_autodetach.c
selftests/bpf: Declare bpf_log_buf variables as static
2020-03-02 17:00:41 -08:00
cgroup_attach_multi.c
bpf: Rename BPF_XADD and prepare to encode other atomics in .imm
2021-01-14 18:34:29 -08:00
cgroup_attach_override.c
selftests/bpf: Declare bpf_log_buf variables as static
2020-03-02 17:00:41 -08:00
cgroup_link.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
cgroup_skb_sk_lookup.c
bpf: selftests: A few improvements to network_helpers.c
2020-07-02 16:09:01 +02:00
check_mtu.c
selftests/bpf: Tests using bpf_check_mtu BPF-helper input mtu_len param
2021-03-08 22:45:56 +01:00
cls_redirect.c
bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE
2021-01-20 14:23:00 -08:00
connect_force_port.c
bpf: selftests: A few improvements to network_helpers.c
2020-07-02 16:09:01 +02:00
core_autosize.c
selftests/bpf: Validate libbpf's auto-sizing of LD/ST/STX instructions
2020-10-07 18:50:27 -07:00
core_extern.c
selftest/bpf: Fix compilation warnings in 32-bit mode
2020-08-13 16:45:41 -07:00
core_read_macros.c
selftests/bpf: Add tests for user- and non-CO-RE BPF_CORE_READ() variants
2021-01-08 13:39:24 -08:00
core_reloc.c
selftests/bpf: Fix core_reloc test runner
2021-04-26 18:37:13 -07:00
core_retro.c
selftests/bpf: Fix spurious test failures in core_retro selftest
2020-08-01 23:10:42 -07:00
cpu_mask.c
selftests: Use consistent include paths for libbpf
2020-01-20 16:37:45 -08:00
d_path.c
selftests/bpf: Fix stat probe in d_path test
2020-09-21 16:18:00 -07:00
enable_stats.c
bpf: Add selftest for BPF_ENABLE_STATS
2020-05-01 10:36:32 -07:00
endian.c
selftests/bpf: Add byte swapping selftest
2020-07-01 09:06:12 +02:00
fentry_fexit.c
bpf: Add tests for PTR_TO_BTF_ID vs. null comparison
2020-06-30 22:21:29 +02:00
fentry_test.c
selftests/bpf: Add re-attach test to fentry_test
2021-04-25 21:09:02 -07:00
fexit_bpf2bpf.c
selftests/bpf: Add tests for target information in bpf_link info queries
2021-04-13 18:18:57 -07:00
fexit_sleep.c
selftests/bpf: Silence clang compilation warnings
2021-04-15 16:50:22 -07:00
fexit_stress.c
bpf: Add per-program recursion prevention mechanism
2021-02-11 16:19:13 +01:00
fexit_test.c
selftests/bpf: Add re-attach test to fexit_test
2021-04-25 21:09:02 -07:00
flow_dissector_load_bytes.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
flow_dissector_reattach.c
selftests: bpf: Pass program and target_fd in flow_dissector_reattach
2020-06-30 10:46:39 -07:00
flow_dissector.c
selftest/bpf: Fix compilation warnings in 32-bit mode
2020-08-13 16:45:41 -07:00
for_each.c
selftests/bpf: Add arraymap test for bpf_for_each_map_elem() helper
2021-02-26 13:23:53 -08:00
get_stack_raw_tp.c
bpf: Test_progs, add test to catch retval refine error handling
2020-03-30 15:00:30 -07:00
get_stackid_cannot_attach.c
selftests/bpf: Add get_stackid_cannot_attach
2020-07-25 20:16:35 -07:00
global_data_init.c
selftests/bpf: Fix check in global_data_init.
2020-09-03 17:33:31 -07:00
global_data.c
selftest/bpf: Fix compilation warnings in 32-bit mode
2020-08-13 16:45:41 -07:00
global_func_args.c
selftests/bpf: Add unit tests for pointers in global functions
2021-02-12 17:37:23 -08:00
hash_large_key.c
bpf: Lift hashtab key_size limit
2020-11-05 20:04:46 -08:00
hashmap.c
selftests/bpf: Convert test_hashmap into test_progs test
2020-04-28 19:48:05 -07:00
kfree_skb.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
kfunc_call.c
bpf: selftests: Add kfunc_call test
2021-03-26 20:41:52 -07:00
ksyms_btf.c
bpf: selftest: Ensure the return value of the bpf_per_cpu_ptr() must be checked
2020-10-19 15:57:42 -07:00
ksyms_module.c
selftests/bpf: Test kernel module ksym externs
2021-01-12 17:24:30 -08:00
ksyms.c
selftests/bpf: Ksyms_btf to test typed ksyms
2020-10-02 14:59:25 -07:00
l4lb_all.c
selftests/bpf: Add subprogs to pyperf, strobemeta, and l4lb_noinline tests
2020-09-03 17:14:40 -07:00
link_pinning.c
selftests/bpf: Add link pinning selftests
2020-03-02 22:06:27 -08:00
linked_funcs.c
selftests/bpf: Add function linking selftest
2021-04-23 14:05:27 -07:00
linked_maps.c
selftests/bpf: Add map linking selftest
2021-04-23 14:05:27 -07:00
linked_vars.c
selftests/bpf: Add global variables linking selftest
2021-04-23 14:05:27 -07:00
load_bytes_relative.c
bpf: selftests: A few improvements to network_helpers.c
2020-07-02 16:09:01 +02:00
map_init.c
bpf: Zero-fill re-used per-cpu map element
2020-11-05 19:55:57 -08:00
map_lock.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
map_ptr.c
selftests/bpf: Pass page size from userspace in map_ptr
2021-04-08 23:54:47 -07:00
metadata.c
selftests/bpf: Test load and dump metadata with btftool and skel
2020-09-15 18:28:27 -07:00
mmap.c
selftests/bpf: mmap: Use runtime page size
2021-04-08 23:54:48 -07:00
modify_return.c
bpf: Add selftests for BPF_MODIFY_RETURN
2020-03-04 13:41:06 -08:00
module_attach.c
selftests/bpf: Test that module can't be unloaded with attached trampoline
2021-04-25 21:09:02 -07:00
ns_current_pid_tgid.c
selftests/bpf: Silence clang compilation warnings
2021-04-15 16:50:22 -07:00
obj_name.c
selftests: bpf: break up test_progs - misc
2019-03-02 11:10:40 -08:00
pe_preserve_elems.c
selftests/bpf: Add tests for BPF_F_PRESERVE_ELEMS
2020-09-30 23:21:06 -07:00
perf_branches.c
selftests/bpf: Add bpf_read_branch_records() selftest
2020-02-19 15:01:07 -08:00
perf_buffer.c
libbpf: Add perf_buffer APIs for better integration with outside epoll loop
2020-08-21 14:26:55 -07:00
perf_event_stackmap.c
selftests/bpf: Add callchain_stackid
2020-07-25 20:16:35 -07:00
pinning.c
selftest/bpf: Test pinning map with reused map fd
2020-10-06 11:10:20 -07:00
pkt_access.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
pkt_md_access.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
probe_read_user_str.c
selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL
2020-11-19 11:58:15 -08:00
probe_user.c
libbpf: Add generic bpf_program__attach()
2019-12-15 15:58:04 -08:00
prog_run_xattr.c
selftests: bpf: Check that PROG_TEST_RUN repeats as requested
2021-03-04 19:11:29 -08:00
queue_stack_map.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
raw_tp_test_run.c
selftests/bpf: Add raw_tp_test_run
2020-09-28 21:52:36 +02:00
raw_tp_writable_reject_nbd_invalid.c
selftests: bpf: test writable buffers in raw tps
2019-04-26 19:04:19 -07:00
raw_tp_writable_test_run.c
selftests: bpf: test writable buffers in raw tps
2019-04-26 19:04:19 -07:00
rdonly_maps.c
libbpf: Expose BPF program's function name
2019-12-15 15:58:05 -08:00
recursion.c
selftests/bpf: Improve recursion selftest
2021-02-11 16:19:24 +01:00
reference_tracking.c
selftests/bpf: Don't use deprecated libbpf APIs
2020-09-03 17:14:40 -07:00
resolve_btfids.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
ringbuf_multi.c
selftests/bpf: ringbuf_multi: Test bpf_map__set_inner_map_fd
2021-04-08 23:54:48 -07:00
ringbuf.c
selftests/bpf: Test ringbuf mmap read-only and read-write restrictions
2021-05-20 23:48:38 +02:00
section_names.c
libbpf: Add support for BPF XDP link
2020-07-25 20:37:02 -07:00
select_reuseport.c
selftests: bpf: Enable UDP sockmap reuseport tests
2020-03-09 22:34:59 +01:00
send_signal_sched_switch.c
selftests/bpf: Add send_signal_sched_switch test
2020-03-05 14:02:41 -08:00
send_signal.c
bpf: Fix compilation warning of selftests
2020-08-06 16:58:42 -07:00
signal_pending.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
sk_assign.c
selftests/bpf: Fix endianness issue in sk_assign
2020-09-18 22:54:52 +02:00
sk_lookup.c
selftests: bpf: Convert sk_lookup ctx access tests to PROG_TEST_RUN
2021-03-04 19:11:29 -08:00
sk_storage_tracing.c
bpf: selftest: Use bpf_sk_storage in FENTRY/FEXIT/RAW_TP
2020-11-12 18:39:28 -08:00
skb_ctx.c
selftest/bpf: Fix compilation warnings in 32-bit mode
2020-08-13 16:45:41 -07:00
skb_helpers.c
bpf, selftests: Test probe_* helpers from SCHED_CLS
2020-06-01 14:38:21 -07:00
skeleton.c
tools/bpftool: Strip away modifiers from global variables
2020-07-13 17:07:43 -07:00
snprintf_btf.c
selftests/bpf: Add remaining ASSERT_xxx() variants
2021-04-26 18:37:13 -07:00
snprintf.c
selftests/bpf: Fix the snprintf test
2021-04-30 10:36:59 -07:00
sock_fields.c
selftests: Make sure all 'skel' variables are declared static
2020-09-29 11:43:43 -07:00
socket_cookie.c
selftests/bpf: Add a selftest for the tracing bpf_get_socket_cookie
2021-02-11 17:44:41 -08:00
sockmap_basic.c
selftests/bpf: Add a test case for loading BPF_SK_SKB_VERDICT
2021-04-01 10:56:14 -07:00
sockmap_ktls.c
selftests/bpf: Fix build of sockmap_ktls.c
2020-02-20 01:17:24 +01:00
sockmap_listen.c
selftests/bpf: Add a test case for udp sockmap
2021-04-01 10:56:14 -07:00
sockopt_inherit.c
selftests/bpf: Fix possible hang in sockopt_inherit
2020-07-16 20:57:09 +02:00
sockopt_multi.c
selftests/bpf: Fix error return code in run_getsockopt_test()
2020-11-16 22:19:07 +01:00
sockopt_sk.c
selftests/bpf: Pass page size from userspace in sockopt_sk
2021-04-08 23:54:47 -07:00
sockopt.c
selftests/bpf: test_progs: convert test_sockopt
2019-09-06 09:59:05 -07:00
spinlock.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
stack_var_off.c
selftest/bpf: Add test for var-offset stack access
2021-02-10 11:05:34 -08:00
stacktrace_build_id_nmi.c
bpf: Fix compilation warning of selftests
2020-08-06 16:58:42 -07:00
stacktrace_build_id.c
bpftool, selftests/bpf: Embed object file inside skeleton
2019-12-17 22:16:35 -08:00
stacktrace_map_raw_tp.c
selftests/bpf: test_progs: remove global fail/success counts
2019-08-28 00:35:40 +02:00
stacktrace_map.c
selftests/bpf: test_progs: remove global fail/success counts
2019-08-28 00:35:40 +02:00
static_linked.c
selftests/bpf: Add multi-file statically linked BPF object file test
2021-03-18 16:14:23 -07:00
subprogs.c
libbpf: Don't attempt to load unused subprog as an entry-point BPF program
2020-11-09 22:15:23 +01:00
tailcalls.c
selftests/bpf: Add tailcall_bpf2bpf tests
2020-09-17 19:56:07 -07:00
task_fd_query_rawtp.c
selftests/bpf: test_progs: remove global fail/success counts
2019-08-28 00:35:40 +02:00
task_fd_query_tp.c
selftests/bpf: test_progs: remove global fail/success counts
2019-08-28 00:35:40 +02:00
task_local_storage.c
selftests/bpf: Test deadlock from recursive bpf_task_storage_[get|delete]
2021-02-26 11:51:48 -08:00
tc_redirect.c
selftests/bpf: Add test for l3 use of bpf_redirect_peer
2021-05-25 18:00:28 +02:00
tcp_estats.c
selftests/bpf: test_progs: remove global fail/success counts
2019-08-28 00:35:40 +02:00
tcp_hdr_options.c
bpf: selftest: Use static globals in tcp_hdr_options and btf_skc_cls_ingress
2020-11-09 16:18:36 -08:00
tcp_rtt.c
bpf: selftests: A few improvements to network_helpers.c
2020-07-02 16:09:01 +02:00
tcpbpf_user.c
selftests/bpf: Add Userspace tests for TCP_WINDOW_CLAMP
2020-12-03 17:23:24 -08:00
test_bpffs.c
selftests/bpf: Add bpffs preload test.
2020-08-20 16:02:36 +02:00
test_bprm_opts.c
bpf: Add tests for bpf_bprm_opts_set helper
2020-11-18 01:36:27 +01:00
test_global_funcs.c
selftests/bpf: Add unit tests for pointers in global functions
2021-02-12 17:37:23 -08:00
test_ima.c
selftests/bpf: Better error messages for ima_setup.sh failures
2021-03-25 18:39:51 -07:00
test_local_storage.c
selftests/bpf: Fix a compiler warning in local_storage test
2021-02-02 21:21:55 -08:00
test_lsm.c
selftests/bpf: Use ASSERT macros in lsm test
2021-04-25 21:09:02 -07:00
test_overhead.c
selftests: Remove fmod_ret from test_overhead
2020-09-28 17:20:28 -07:00
test_profiler.c
selftests/bpf: Add profiler test
2020-10-09 22:03:06 +02:00
test_skb_pkt_end.c
selftests/bpf: Add skb_pkt_end test
2020-11-13 01:42:11 +01:00
tp_attach_query.c
selftests: bpf: initialize bpf_object pointers where needed
2019-05-09 15:53:56 -07:00
trace_ext.c
selftests/bpf: Adding test for arg dereference in extension trace
2020-09-29 13:09:24 -07:00
trace_printk.c
selftests/bpf: Add selftests verifying bpf_trace_printk() behaviour
2020-07-13 16:55:49 -07:00
trampoline_count.c
bpf: Add per-program recursion prevention mechanism
2021-02-11 16:19:13 +01:00
udp_limit.c
selftests/bpf: Test BPF_CGROUP_INET_SOCK_RELEASE
2020-07-08 01:07:36 +02:00
varlen.c
selftests/bpf: Make test_varlen work with 32-bit user-space arch
2020-08-13 16:45:41 -07:00
vmlinux.c
selftests/bpf: Fix nanosleep for real this time
2020-03-17 19:29:12 +01:00
xdp_adjust_tail.c
selftests/bpf: Xdp_adjust_tail add grow tail tests
2020-05-14 21:21:57 -07:00
xdp_attach.c
selftests/bpf: Check for correct program attach/detach in xdp_attach test
2020-04-15 13:26:08 +02:00
xdp_bpf2bpf.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00
xdp_cpumap_attach.c
selftest: Add tests for XDP programs in CPUMAP entries
2020-07-16 17:00:32 +02:00
xdp_devmap_attach.c
bpf: Selftests and tools use struct bpf_devmap_val from uapi
2020-06-09 11:36:19 -07:00
xdp_info.c
selftests/bpf: Add test for bpf_get_link_xdp_id
2020-04-08 01:35:24 +02:00
xdp_link.c
selftests/bpf: Add link detach tests for cgroup, netns, and xdp bpf_links
2020-08-01 20:38:28 -07:00
xdp_noinline.c
selftests/bpf: Initialize duration in xdp_noinline.c
2020-10-02 16:46:20 +02:00
xdp_perf.c
selftests: bpf: Add xdp_perf test
2019-12-13 13:09:32 -08:00
xdp.c
selftests/bpf: Move existing common networking parts into network_helpers
2020-05-09 00:48:20 +02:00