Dmitrii Banshchikov f782e2c300 bpf: Relax return code check for subprograms ... Currently verifier enforces return code checks for subprograms in the same manner as it does for program entry points. This prevents returning arbitrary scalar values from subprograms. Scalar type of returned values is checked by btf_prepare_func_args() and hence it should be safe to allow only scalars for now. Relax return code checks for subprograms and allow any correct scalar values. Fixes: 51c39bb1d5 (bpf: Introduce function-by-function verification) Signed-off-by: Dmitrii Banshchikov <me@ubique.spb.ru> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20201113171756.90594-1-me@ubique.spb.ru		2020-11-14 08:17:27 -08:00
..
.gitignore
align.c	bpf: Propagate scalar ranges through register assignments.	2020-10-09 22:03:06 +02:00
attach_probe.c
autoload.c
bpf_iter.c	selftests/bpf_iter: Don't fail test due to missing __builtin_btf_type_id	2020-09-29 11:18:19 -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_verif_scale.c	selftests/bpf: Add subprogs to pyperf, strobemeta, and l4lb_noinline tests	2020-09-03 17:14:40 -07:00
btf.c	selftests/bpf: Merge most of test_btf into test_progs	2020-09-15 18:37:33 -07:00
btf_dump.c	selftests/bpf: Test "incremental" btf_dump in C format	2020-09-30 12:30:46 -07:00
btf_endian.c	selftests/bpf: Test BTF's handling of endianness	2020-09-29 12:21:23 -07:00
btf_map_in_map.c	bpf, selftests: Add test for different array inner map size	2020-10-11 10:21:04 -07:00
btf_skc_cls_ingress.c	selftests: Make sure all 'skel' variables are declared static	2020-09-29 11:43:43 -07:00
btf_write.c	selftests/bpf: Move and extend ASSERT_xxx() testing macros	2020-09-29 12:21:23 -07:00
cg_storage_multi.c	selftests/bpf: Don't destroy failed link	2020-07-31 00:43:49 +02:00
cgroup_attach_autodetach.c
cgroup_attach_multi.c
cgroup_attach_override.c
cgroup_link.c	selftests/bpf: Add link detach tests for cgroup, netns, and xdp bpf_links	2020-08-01 20:38:28 -07:00
cgroup_skb_sk_lookup.c	bpf: selftests: A few improvements to network_helpers.c	2020-07-02 16:09:01 +02:00
cls_redirect.c	selftests/bpf: Add __noinline variant of cls_redirect selftest	2020-09-03 17:14:40 -07:00
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_reloc.c	selftests/bpf: Add tests for ENUMVAL_EXISTS/ENUMVAL_VALUE relocations	2020-08-19 14:19:39 -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
d_path.c	selftests/bpf: Fix stat probe in d_path test	2020-09-21 16:18:00 -07:00
enable_stats.c
endian.c	selftests/bpf: Add byte swapping selftest	2020-07-01 09:06:12 +02:00
fentry_fexit.c
fentry_test.c
fexit_bpf2bpf.c	selftests: Add selftest for disallowing modify_return attachment to freplace	2020-09-29 13:09:24 -07:00
fexit_stress.c
fexit_test.c
flow_dissector.c	selftest/bpf: Fix compilation warnings in 32-bit mode	2020-08-13 16:45:41 -07:00
flow_dissector_load_bytes.c
flow_dissector_reattach.c
get_stack_raw_tp.c
get_stackid_cannot_attach.c	selftests/bpf: Add get_stackid_cannot_attach	2020-07-25 20:16:35 -07:00
global_data.c	selftest/bpf: Fix compilation warnings in 32-bit mode	2020-08-13 16:45:41 -07:00
global_data_init.c	selftests/bpf: Fix check in global_data_init.	2020-09-03 17:33:31 -07:00
hashmap.c
kfree_skb.c
ksyms.c	selftests/bpf: Ksyms_btf to test typed ksyms	2020-10-02 14:59:25 -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
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
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
map_ptr.c
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: Fix segmentation fault in test_progs	2020-08-11 15:36:45 +02:00
modify_return.c
ns_current_pid_tgid.c
obj_name.c
pe_preserve_elems.c	selftests/bpf: Add tests for BPF_F_PRESERVE_ELEMS	2020-09-30 23:21:06 -07:00
perf_branches.c
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
pkt_md_access.c
probe_user.c
prog_run_xattr.c	selftest/bpf: Fix compilation warnings in 32-bit mode	2020-08-13 16:45:41 -07:00
queue_stack_map.c
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
raw_tp_writable_test_run.c
rdonly_maps.c
reference_tracking.c	selftests/bpf: Don't use deprecated libbpf APIs	2020-09-03 17:14:40 -07:00
resolve_btfids.c	selftests/bpf: Fix alignment of .BTF_ids	2020-09-30 18:11:40 -07:00
ringbuf.c
ringbuf_multi.c
section_names.c	libbpf: Add support for BPF XDP link	2020-07-25 20:37:02 -07:00
select_reuseport.c
send_signal.c	bpf: Fix compilation warning of selftests	2020-08-06 16:58:42 -07:00
send_signal_sched_switch.c
signal_pending.c
sk_assign.c	selftests/bpf: Fix endianness issue in sk_assign	2020-09-18 22:54:52 +02:00
sk_lookup.c	selftests/bpf: Fix v4_to_v6 in sk_lookup	2020-08-11 15:36:51 +02:00
skb_ctx.c	selftest/bpf: Fix compilation warnings in 32-bit mode	2020-08-13 16:45:41 -07:00
skb_helpers.c
skeleton.c	tools/bpftool: Strip away modifiers from global variables	2020-07-13 17:07:43 -07:00
snprintf_btf.c	bpf, selftests: Fix warning in snprintf_btf where system() call unchecked	2020-09-29 13:21:23 -07:00
sock_fields.c	selftests: Make sure all 'skel' variables are declared static	2020-09-29 11:43:43 -07:00
sockmap_basic.c	selftests/bpf: Properly initialize linfo in sockmap_basic	2020-10-02 16:47:32 +02:00
sockmap_ktls.c
sockmap_listen.c
sockopt.c
sockopt_inherit.c	selftests/bpf: Fix possible hang in sockopt_inherit	2020-07-16 20:57:09 +02:00
sockopt_multi.c	selftests/bpf: test_progs: convert test_sockopt_multi	2019-09-06 09:59:05 -07:00
sockopt_sk.c	selftests/bpf: Fix endianness issue in test_sockopt_sk	2020-09-19 01:01:18 +02:00
spinlock.c
stacktrace_build_id.c
stacktrace_build_id_nmi.c	bpf: Fix compilation warning of selftests	2020-08-06 16:58:42 -07:00
stacktrace_map.c
stacktrace_map_raw_tp.c
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
task_fd_query_tp.c
tcp_estats.c
tcp_hdr_options.c	bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo	2020-10-15 20:53:15 +02:00
tcp_rtt.c	bpf: selftests: A few improvements to network_helpers.c	2020-07-02 16:09:01 +02:00
test_bpffs.c	selftests/bpf: Add bpffs preload test.	2020-08-20 16:02:36 +02:00
test_global_funcs.c	bpf: Relax return code check for subprograms	2020-11-14 08:17:27 -08:00
test_local_storage.c	bpf: Add selftests for local_storage	2020-08-25 15:00:04 -07:00
test_lsm.c	selftests/bpf: Add sleepable tests	2020-08-28 21:20:33 +02:00
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
tp_attach_query.c
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
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
xdp.c
xdp_adjust_tail.c
xdp_attach.c
xdp_bpf2bpf.c
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
xdp_info.c
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