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Date: Fri, 21 Apr 2023 23:10:35 +0200
From: Daniel Borkmann <daniel@...earbox.net>
To: davem@...emloft.net
Cc: kuba@...nel.org, pabeni@...hat.com, edumazet@...gle.com,
daniel@...earbox.net, ast@...nel.org, andrii@...nel.org,
martin.lau@...ux.dev, netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: pull-request: bpf-next 2023-04-21
Hi David, hi Jakub, hi Paolo, hi Eric,
The following pull-request contains BPF updates for your *net-next* tree.
We've added 71 non-merge commits during the last 8 day(s) which contain
a total of 116 files changed, 13397 insertions(+), 8896 deletions(-).
The main changes are:
1) Add a new BPF netfilter program type and minimal support to hook BPF programs to
netfilter hooks such as prerouting or forward, from Florian Westphal.
2) Fix race between btf_put and btf_idr walk which caused a deadlock, from Alexei Starovoitov.
3) Second big batch to migrate test_verifier unit tests into test_progs for ease of
readability and debugging, from Eduard Zingerman.
4) Add support for refcounted local kptrs to the verifier for allowing shared ownership,
useful for adding a node to both the BPF list and rbtree, from Dave Marchevsky.
5) Migrate bpf_for(), bpf_for_each() and bpf_repeat() macros from BPF selftests into
libbpf-provided bpf_helpers.h header and improve kfunc handling, from Andrii Nakryiko.
6) Support 64-bit pointers to kfuncs needed for archs like s390x, from Ilya Leoshkevich.
7) Support BPF progs under getsockopt with a NULL optval, from Stanislav Fomichev.
8) Improve verifier u32 scalar equality checking in order to enable LLVM transformations
which earlier had to be disabled specifically for BPF backend, from Yonghong Song.
9) Extend bpftool's struct_ops object loading to support links, from Kui-Feng Lee.
10) Add xsk selftest follow-up fixes for hugepage allocated umem, from Magnus Karlsson.
11) Support BPF redirects from tc BPF to ifb devices, from Daniel Borkmann.
12) Add BPF support for integer type when accessing variable length arrays, from Feng Zhou.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Eduard Zingerman, Florian Westphal, Hao Luo, Jiri Olsa, Kal Cutter
Conley, Martin KaFai Lau, Quentin Monnet, Sven Schnelle, Thomas Richter,
Toke Høiland-Jørgensen, Tonghao Zhang, Yafang Shao
----------------------------------------------------------------
The following changes since commit c2865b1122595e69e7df52d01f7f02338b8babca:
Daniel Borkmann says: (2023-04-13 16:43:38 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev
for you to fetch changes up to 4db10a8243df665ced10b027c2d4862173a7a3ec:
selftests/bpf: verifier/value_ptr_arith converted to inline assembly (2023-04-21 12:27:19 -0700)
----------------------------------------------------------------
bpf-next-for-netdev
----------------------------------------------------------------
Alexei Starovoitov (9):
selftests/bpf: Fix merge conflict due to SYS() macro change.
selftests/bpf: Workaround for older vm_sockets.h.
Merge branch 'Shared ownership for local kptrs'
Merge branch 'Remove KF_KPTR_GET kfunc flag'
Merge branch 'Provide bpf_for() and bpf_for_each() by libbpf'
Merge branch 'Access variable length array relaxed for integer type'
Merge branch 'fix __retval() being always ignored'
bpf: Fix race between btf_put and btf_idr walk.
Merge branch 'bpf: add netfilter program type'
Andrii Nakryiko (6):
libbpf: misc internal libbpf clean ups around log fixup
libbpf: report vmlinux vs module name when dealing with ksyms
libbpf: improve handling of unresolved kfuncs
selftests/bpf: add missing __weak kfunc log fixup test
libbpf: move bpf_for(), bpf_for_each(), and bpf_repeat() into bpf_helpers.h
libbpf: mark bpf_iter_num_{new,next,destroy} as __weak
Daniel Borkmann (1):
bpf: Set skb redirect and from_ingress info in __bpf_tx_skb
Dave Marchevsky (10):
bpf: Remove btf_field_offs, use btf_record's fields instead
bpf: Introduce opaque bpf_refcount struct and add btf_record plumbing
bpf: Support refcounted local kptrs in existing semantics
bpf: Add bpf_refcount_acquire kfunc
bpf: Migrate bpf_rbtree_add and bpf_list_push_{front,back} to possibly fail
selftests/bpf: Modify linked_list tests to work with macro-ified inserts
bpf: Migrate bpf_rbtree_remove to possibly fail
bpf: Centralize btf_field-specific initialization logic
selftests/bpf: Add refcounted_kptr tests
bpf: Fix bpf_refcount_acquire's refcount_t address calculation
David Vernet (3):
bpf: Remove bpf_kfunc_call_test_kptr_get() test kfunc
bpf: Remove KF_KPTR_GET kfunc flag
bpf,docs: Remove KF_KPTR_GET from documentation
Eduard Zingerman (26):
selftests/bpf: disable program test run for progs/refcounted_kptr.c
selftests/bpf: fix __retval() being always ignored
selftests/bpf: add pre bpf_prog_test_run_opts() callback for test_loader
selftests/bpf: populate map_array_ro map for verifier_array_access test
selftests/bpf: Add notion of auxiliary programs for test_loader
selftests/bpf: verifier/bounds converted to inline assembly
selftests/bpf: verifier/bpf_get_stack converted to inline assembly
selftests/bpf: verifier/btf_ctx_access converted to inline assembly
selftests/bpf: verifier/ctx converted to inline assembly
selftests/bpf: verifier/d_path converted to inline assembly
selftests/bpf: verifier/direct_packet_access converted to inline assembly
selftests/bpf: verifier/jeq_infer_not_null converted to inline assembly
selftests/bpf: verifier/loops1 converted to inline assembly
selftests/bpf: verifier/lwt converted to inline assembly
selftests/bpf: verifier/map_in_map converted to inline assembly
selftests/bpf: verifier/map_ptr_mixing converted to inline assembly
selftests/bpf: verifier/ref_tracking converted to inline assembly
selftests/bpf: verifier/regalloc converted to inline assembly
selftests/bpf: verifier/runtime_jit converted to inline assembly
selftests/bpf: verifier/search_pruning converted to inline assembly
selftests/bpf: verifier/sock converted to inline assembly
selftests/bpf: verifier/spin_lock converted to inline assembly
selftests/bpf: verifier/subreg converted to inline assembly
selftests/bpf: verifier/unpriv converted to inline assembly
selftests/bpf: verifier/value_illegal_alu converted to inline assembly
selftests/bpf: verifier/value_ptr_arith converted to inline assembly
Feng Zhou (2):
bpf: support access variable length array of integer type
selftests/bpf: Add test to access integer type of variable array
Florian Westphal (7):
bpf: add bpf_link support for BPF_NETFILTER programs
bpf: minimal support for programs hooked into netfilter framework
netfilter: nfnetlink hook: dump bpf prog id
netfilter: disallow bpf hook attachment at same priority
tools: bpftool: print netfilter link info
bpf: add test_run support for netfilter program type
selftests/bpf: add missing netfilter return value and ctx access tests
Ilya Leoshkevich (1):
bpf: Support 64-bit pointers to kfuncs
Kui-Feng Lee (2):
bpftool: Register struct_ops with a link.
bpftool: Update doc to explain struct_ops register subcommand.
Magnus Karlsson (2):
selftests/xsk: Fix munmap for hugepage allocated umem
selftests/xsk: Put MAP_HUGE_2MB in correct argument
Quentin Monnet (1):
bpftool: Replace "__fallthrough" by a comment to address merge conflict
Rong Tao (1):
samples/bpf: sampleip: Replace PAGE_OFFSET with _text address
Sean Young (1):
bpf: lirc program type should not require SYS_CAP_ADMIN
Stanislav Fomichev (2):
bpf: Don't EFAULT for getsockopt with optval=NULL
selftests/bpf: Verify optval=NULL case
Yafang (1):
bpf: Add preempt_count_{sub,add} into btf id deny list
Yonghong Song (2):
bpf: Improve verifier u32 scalar equality checking
selftests/bpf: Add a selftest for checking subreg equality
Documentation/bpf/kfuncs.rst | 21 +-
arch/s390/net/bpf_jit_comp.c | 5 +
include/linux/bpf.h | 93 +-
include/linux/bpf_types.h | 4 +
include/linux/bpf_verifier.h | 7 +-
include/linux/btf.h | 3 -
include/linux/filter.h | 1 +
include/linux/netfilter.h | 1 +
include/linux/skbuff.h | 9 +
include/net/netfilter/nf_bpf_link.h | 15 +
include/uapi/linux/bpf.h | 18 +
include/uapi/linux/netfilter/nfnetlink_hook.h | 24 +-
kernel/bpf/btf.c | 148 +-
kernel/bpf/cgroup.c | 9 +-
kernel/bpf/core.c | 11 +
kernel/bpf/helpers.c | 113 +-
kernel/bpf/map_in_map.c | 15 -
kernel/bpf/syscall.c | 30 +-
kernel/bpf/verifier.c | 355 +++--
net/bpf/test_run.c | 170 ++-
net/core/filter.c | 2 +
net/netfilter/Kconfig | 3 +
net/netfilter/Makefile | 1 +
net/netfilter/core.c | 12 +
net/netfilter/nf_bpf_link.c | 228 +++
net/netfilter/nfnetlink_hook.c | 81 +-
samples/bpf/sampleip_user.c | 11 +-
.../bpftool/Documentation/bpftool-struct_ops.rst | 12 +-
tools/bpf/bpftool/btf_dumper.c | 2 +-
tools/bpf/bpftool/common.c | 14 +
tools/bpf/bpftool/link.c | 83 ++
tools/bpf/bpftool/main.h | 6 +
tools/bpf/bpftool/net.c | 106 ++
tools/bpf/bpftool/prog.c | 13 -
tools/bpf/bpftool/struct_ops.c | 70 +-
tools/include/uapi/linux/bpf.h | 18 +
tools/lib/bpf/bpf_helpers.h | 103 ++
tools/lib/bpf/libbpf.c | 110 +-
tools/lib/bpf/libbpf_probes.c | 1 +
tools/testing/selftests/bpf/bpf_experimental.h | 60 +-
.../selftests/bpf/bpf_testmod/bpf_testmod.c | 20 +
.../bpf/prog_tests/access_variable_array.c | 16 +
.../testing/selftests/bpf/prog_tests/linked_list.c | 96 +-
tools/testing/selftests/bpf/prog_tests/log_fixup.c | 31 +
tools/testing/selftests/bpf/prog_tests/rbtree.c | 25 +
.../selftests/bpf/prog_tests/refcounted_kptr.c | 18 +
.../selftests/bpf/prog_tests/sockmap_listen.c | 5 +
.../testing/selftests/bpf/prog_tests/sockopt_sk.c | 28 +
.../selftests/bpf/prog_tests/tracing_struct.c | 2 +
tools/testing/selftests/bpf/prog_tests/verifier.c | 112 +-
.../selftests/bpf/prog_tests/xdp_do_redirect.c | 4 +-
tools/testing/selftests/bpf/progs/bpf_misc.h | 109 +-
tools/testing/selftests/bpf/progs/linked_list.c | 34 +-
tools/testing/selftests/bpf/progs/linked_list.h | 4 +-
.../testing/selftests/bpf/progs/linked_list_fail.c | 96 +-
tools/testing/selftests/bpf/progs/map_kptr.c | 40 +-
tools/testing/selftests/bpf/progs/map_kptr_fail.c | 78 -
tools/testing/selftests/bpf/progs/rbtree.c | 74 +-
tools/testing/selftests/bpf/progs/rbtree_fail.c | 77 +-
.../testing/selftests/bpf/progs/refcounted_kptr.c | 406 ++++++
.../selftests/bpf/progs/refcounted_kptr_fail.c | 72 +
tools/testing/selftests/bpf/progs/sockopt_sk.c | 12 +
.../bpf/progs/test_access_variable_array.c | 19 +
tools/testing/selftests/bpf/progs/test_log_fixup.c | 10 +
tools/testing/selftests/bpf/progs/tracing_struct.c | 13 +
.../testing/selftests/bpf/progs/verifier_bounds.c | 1076 ++++++++++++++
.../selftests/bpf/progs/verifier_bpf_get_stack.c | 124 ++
.../selftests/bpf/progs/verifier_btf_ctx_access.c | 32 +
tools/testing/selftests/bpf/progs/verifier_ctx.c | 221 +++
.../testing/selftests/bpf/progs/verifier_d_path.c | 48 +
.../bpf/progs/verifier_direct_packet_access.c | 803 +++++++++++
.../bpf/progs/verifier_jeq_infer_not_null.c | 213 +++
.../testing/selftests/bpf/progs/verifier_loops1.c | 259 ++++
tools/testing/selftests/bpf/progs/verifier_lwt.c | 234 +++
.../selftests/bpf/progs/verifier_map_in_map.c | 142 ++
.../selftests/bpf/progs/verifier_map_ptr_mixing.c | 265 ++++
.../selftests/bpf/progs/verifier_netfilter_ctx.c | 121 ++
.../bpf/progs/verifier_netfilter_retcode.c | 49 +
.../selftests/bpf/progs/verifier_ref_tracking.c | 1495 ++++++++++++++++++++
.../selftests/bpf/progs/verifier_reg_equal.c | 58 +
.../selftests/bpf/progs/verifier_regalloc.c | 364 +++++
.../selftests/bpf/progs/verifier_runtime_jit.c | 360 +++++
.../selftests/bpf/progs/verifier_search_pruning.c | 339 +++++
tools/testing/selftests/bpf/progs/verifier_sock.c | 980 +++++++++++++
.../selftests/bpf/progs/verifier_spin_lock.c | 533 +++++++
.../testing/selftests/bpf/progs/verifier_subreg.c | 673 +++++++++
.../testing/selftests/bpf/progs/verifier_unpriv.c | 726 ++++++++++
.../selftests/bpf/progs/verifier_unpriv_perf.c | 34 +
.../bpf/progs/verifier_value_illegal_alu.c | 149 ++
.../selftests/bpf/progs/verifier_value_ptr_arith.c | 1423 +++++++++++++++++++
tools/testing/selftests/bpf/test_loader.c | 99 +-
tools/testing/selftests/bpf/test_progs.h | 9 +
tools/testing/selftests/bpf/verifier/bounds.c | 884 ------------
.../testing/selftests/bpf/verifier/bpf_get_stack.c | 87 --
.../selftests/bpf/verifier/btf_ctx_access.c | 25 -
tools/testing/selftests/bpf/verifier/ctx.c | 186 ---
tools/testing/selftests/bpf/verifier/d_path.c | 37 -
.../selftests/bpf/verifier/direct_packet_access.c | 710 ----------
.../selftests/bpf/verifier/jeq_infer_not_null.c | 174 ---
tools/testing/selftests/bpf/verifier/loops1.c | 206 ---
tools/testing/selftests/bpf/verifier/lwt.c | 189 ---
tools/testing/selftests/bpf/verifier/map_in_map.c | 96 --
tools/testing/selftests/bpf/verifier/map_kptr.c | 27 -
.../selftests/bpf/verifier/map_ptr_mixing.c | 100 --
.../testing/selftests/bpf/verifier/ref_tracking.c | 1082 --------------
tools/testing/selftests/bpf/verifier/regalloc.c | 277 ----
tools/testing/selftests/bpf/verifier/runtime_jit.c | 231 ---
.../selftests/bpf/verifier/search_pruning.c | 266 ----
tools/testing/selftests/bpf/verifier/sock.c | 706 ---------
tools/testing/selftests/bpf/verifier/spin_lock.c | 447 ------
tools/testing/selftests/bpf/verifier/subreg.c | 533 -------
tools/testing/selftests/bpf/verifier/unpriv.c | 562 --------
.../selftests/bpf/verifier/value_illegal_alu.c | 95 --
.../selftests/bpf/verifier/value_ptr_arith.c | 1140 ---------------
tools/testing/selftests/bpf/xskxceiver.c | 14 +-
tools/testing/selftests/bpf/xskxceiver.h | 1 +
116 files changed, 13397 insertions(+), 8896 deletions(-)
create mode 100644 include/net/netfilter/nf_bpf_link.h
create mode 100644 net/netfilter/nf_bpf_link.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/access_variable_array.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/refcounted_kptr.c
create mode 100644 tools/testing/selftests/bpf/progs/refcounted_kptr.c
create mode 100644 tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c
create mode 100644 tools/testing/selftests/bpf/progs/test_access_variable_array.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_bounds.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_bpf_get_stack.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_ctx.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_d_path.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_direct_packet_access.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_jeq_infer_not_null.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_loops1.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_lwt.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_map_in_map.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_map_ptr_mixing.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_netfilter_ctx.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_netfilter_retcode.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_ref_tracking.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_reg_equal.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_regalloc.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_runtime_jit.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_search_pruning.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_sock.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_spin_lock.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_subreg.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_unpriv.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_unpriv_perf.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_value_illegal_alu.c
create mode 100644 tools/testing/selftests/bpf/progs/verifier_value_ptr_arith.c
delete mode 100644 tools/testing/selftests/bpf/verifier/bounds.c
delete mode 100644 tools/testing/selftests/bpf/verifier/bpf_get_stack.c
delete mode 100644 tools/testing/selftests/bpf/verifier/btf_ctx_access.c
delete mode 100644 tools/testing/selftests/bpf/verifier/ctx.c
delete mode 100644 tools/testing/selftests/bpf/verifier/d_path.c
delete mode 100644 tools/testing/selftests/bpf/verifier/direct_packet_access.c
delete mode 100644 tools/testing/selftests/bpf/verifier/jeq_infer_not_null.c
delete mode 100644 tools/testing/selftests/bpf/verifier/loops1.c
delete mode 100644 tools/testing/selftests/bpf/verifier/lwt.c
delete mode 100644 tools/testing/selftests/bpf/verifier/map_in_map.c
delete mode 100644 tools/testing/selftests/bpf/verifier/map_ptr_mixing.c
delete mode 100644 tools/testing/selftests/bpf/verifier/ref_tracking.c
delete mode 100644 tools/testing/selftests/bpf/verifier/regalloc.c
delete mode 100644 tools/testing/selftests/bpf/verifier/runtime_jit.c
delete mode 100644 tools/testing/selftests/bpf/verifier/search_pruning.c
delete mode 100644 tools/testing/selftests/bpf/verifier/sock.c
delete mode 100644 tools/testing/selftests/bpf/verifier/spin_lock.c
delete mode 100644 tools/testing/selftests/bpf/verifier/subreg.c
delete mode 100644 tools/testing/selftests/bpf/verifier/unpriv.c
delete mode 100644 tools/testing/selftests/bpf/verifier/value_illegal_alu.c
delete mode 100644 tools/testing/selftests/bpf/verifier/value_ptr_arith.c
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