Hi David, hi Jakub, hi Paolo, hi Eric,
The following pull-request contains BPF updates for your *net-next* tree.
We've added 45 non-merge commits during the last 14 day(s) which contain
a total of 61 files changed, 986 insertions(+), 372 deletions(-).
The main changes are:
1) New bpf_ktime_get_tai_ns() BPF helper to access CLOCK_TAI, from Kurt
Kanzenbach and Jesper Dangaard Brouer.
2) Few clean ups and improvements for libbpf 1.0, from Andrii Nakryiko.
3) Expose crash_kexec() as kfunc for BPF programs, from Artem Savkov.
4) Add ability to define sleepable-only kfuncs, from Benjamin Tissoires.
5) Teach libbpf's bpf_prog_load() and bpf_map_create() to gracefully handle
unsupported names on old kernels, from Hangbin Liu.
6) Allow opting out from auto-attaching BPF programs by libbpf's BPF skeleton,
from Hao Luo.
7) Relax libbpf's requirement for shared libs to be marked executable, from
Henqgi Chen.
8) Improve bpf_iter internals handling of error returns, from Hao Luo.
9) Few accommodations in libbpf to support GCC-BPF quirks, from James Hilliard.
10) Fix BPF verifier logic around tracking dynptr ref_obj_id, from Joanne Koong.
11) bpftool improvements to handle full BPF program names better, from Manu
Bretelle.
12) bpftool fixes around libcap use, from Quentin Monnet.
13) BPF map internals clean ups and improvements around memory allocations,
from Yafang Shao.
14) Allow to use cgroup_get_from_file() on cgroupv1, allowing BPF cgroup
iterator to work on cgroupv1, from Yosry Ahmed.
15) BPF verifier internal clean ups, from Dave Marchevsky and Joanne Koong.
16) Various fixes and clean ups for selftests/bpf and vmtest.sh, from Daniel
Xu, Artem Savkov, Joanne Koong, Andrii Nakryiko, Shibin Koikkara Reeny.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Daniel Müller, David Vernet, Goro Fuji, Hao Luo, Jiri Olsa, Joanne
Koong, Kumar Kartikeya Dwivedi, Maciej Fijalkowski, Martin KaFai Lau,
Quentin Monnet, Rumen Telbizov, Tejun Heo, Yonghong Song
----------------------------------------------------------------
The following changes since commit f86d1fbbe7858884d6754534a0afbb74fc30bc26:
Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next (2022-08-03 16:29:08 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
for you to fetch changes up to df78da27260c915039b348b164bbc53fa372ba70:
selftests/bpf: Few fixes for selftests/bpf built in release mode (2022-08-17 22:43:58 +0200)
----------------------------------------------------------------
Alexei Starovoitov (2):
Merge branch 'Add BPF-helper for accessing CLOCK_TAI'
Merge branch 'destructive bpf_kfuncs'
Andrii Nakryiko (6):
libbpf: Reject legacy 'maps' ELF section
libbpf: preserve errno across pr_warn/pr_info/pr_debug
libbpf: Fix potential NULL dereference when parsing ELF
libbpf: Streamline bpf_attr and perf_event_attr initialization
libbpf: Clean up deprecated and legacy aliases
selftests/bpf: Few fixes for selftests/bpf built in release mode
Artem Savkov (4):
bpf: add destructive kfunc flag
bpf: export crash_kexec() as destructive kfunc
selftests/bpf: add destructive kfunc test
selftests/bpf: Fix attach point for non-x86 arches in test_progs/lsm
Benjamin Tissoires (1):
btf: Add a new kfunc flag which allows to mark a function to be sleepable
Daniel Xu (5):
selftests/bpf: Fix vmtest.sh -h to not require root
selftests/bpf: Fix vmtest.sh getopts optstring
selftests/bpf: Add existing connection bpf_*_ct_lookup() test
selftests/bpf: Add connmark read test
selftests/bpf: Update CI kconfig
Dave Marchevsky (2):
bpf: Improve docstring for BPF_F_USER_BUILD_ID flag
bpf: Cleanup check_refcount_ok
Florian Fainelli (1):
libbpf: Initialize err in probe_map_create
Hangbin Liu (2):
libbpf: Add names for auxiliary maps
libbpf: Making bpf_prog_load() ignore name if kernel doesn't support
Hao Luo (3):
bpf, iter: Fix the condition on p when calling stop.
libbpf: Allows disabling auto attach
selftests/bpf: Tests libbpf autoattach APIs
Hengqi Chen (1):
libbpf: Do not require executable permission for shared libraries
James Hilliard (2):
libbpf: Skip empty sections in bpf_object__init_global_data_maps
libbpf: Ensure functions with always_inline attribute are inline
Jesper Dangaard Brouer (1):
bpf: Add BPF-helper for accessing CLOCK_TAI
Joanne Koong (4):
selftests/bpf: Clean up sys_nanosleep uses
bpf: Verifier cleanups
bpf: Fix ref_obj_id for dynptr data slices in verifier
selftests/bpf: add extra test for using dynptr data slice after release
Kumar Kartikeya Dwivedi (1):
net: netfilter: Remove ifdefs for code shared by BPF and ctnetlink
Kurt Kanzenbach (1):
selftests/bpf: Add BPF-helper test for CLOCK_TAI access
Manu Bretelle (1):
bpftool: Remove BPF_OBJ_NAME_LEN restriction when looking up bpf program by name
Quentin Monnet (3):
bpftool: Fix a typo in a comment
bpf: Clear up confusion in bpf_skb_adjust_room()'s documentation
bpftool: Clear errno after libcap's checks
Shibin Koikkara Reeny (1):
selftests/xsk: Update poll test cases
Yafang Shao (4):
bpf: Remove unneeded memset in queue_stack_map creation
bpf: Use bpf_map_area_free instread of kvfree
bpf: Make __GFP_NOWARN consistent in bpf map creation
bpf: Use bpf_map_area_alloc consistently on bpf map creation
Yonghong Song (1):
bpf: Always return corresponding btf_type in __get_type_size()
Yosry Ahmed (1):
cgroup: enable cgroup_get_from_file() on cgroup1
Documentation/bpf/kfuncs.rst | 15 ++
include/linux/bpf.h | 1 +
include/linux/btf.h | 2 +
include/net/netfilter/nf_conntrack_core.h | 6 -
include/uapi/linux/bpf.h | 33 +++-
kernel/bpf/bpf_iter.c | 5 +
kernel/bpf/bpf_local_storage.c | 6 +-
kernel/bpf/btf.c | 18 +-
kernel/bpf/core.c | 1 +
kernel/bpf/cpumap.c | 6 +-
kernel/bpf/devmap.c | 6 +-
kernel/bpf/hashtab.c | 6 +-
kernel/bpf/helpers.c | 32 ++++
kernel/bpf/local_storage.c | 5 +-
kernel/bpf/lpm_trie.c | 4 +-
kernel/bpf/offload.c | 6 +-
kernel/bpf/queue_stack_maps.c | 2 -
kernel/bpf/ringbuf.c | 10 +-
kernel/bpf/verifier.c | 159 +++++++++---------
kernel/cgroup/cgroup.c | 5 -
net/bpf/test_run.c | 5 +
net/core/sock_map.c | 12 +-
net/netfilter/nf_conntrack_core.c | 6 -
tools/bpf/bpftool/common.c | 15 +-
tools/bpf/bpftool/feature.c | 2 +-
tools/bpf/bpftool/main.c | 10 ++
tools/include/uapi/linux/bpf.h | 33 +++-
tools/lib/bpf/bpf.c | 186 ++++++++++++---------
tools/lib/bpf/bpf_tracing.h | 14 +-
tools/lib/bpf/btf.c | 2 -
tools/lib/bpf/btf.h | 1 -
tools/lib/bpf/libbpf.c | 104 ++++++++----
tools/lib/bpf/libbpf.h | 2 +
tools/lib/bpf/libbpf.map | 2 +
tools/lib/bpf/libbpf_internal.h | 3 +
tools/lib/bpf/libbpf_legacy.h | 2 +
tools/lib/bpf/libbpf_probes.c | 2 +-
tools/lib/bpf/netlink.c | 3 +-
tools/lib/bpf/skel_internal.h | 10 +-
tools/lib/bpf/usdt.bpf.h | 4 +-
tools/testing/selftests/bpf/DENYLIST.s390x | 2 +-
tools/testing/selftests/bpf/config | 2 +
.../selftests/bpf/prog_tests/attach_probe.c | 6 +-
.../testing/selftests/bpf/prog_tests/autoattach.c | 30 ++++
.../testing/selftests/bpf/prog_tests/bpf_cookie.c | 2 +-
tools/testing/selftests/bpf/prog_tests/bpf_nf.c | 60 +++++++
tools/testing/selftests/bpf/prog_tests/dynptr.c | 3 +-
.../testing/selftests/bpf/prog_tests/kfunc_call.c | 36 ++++
.../selftests/bpf/prog_tests/task_pt_regs.c | 2 +-
tools/testing/selftests/bpf/prog_tests/time_tai.c | 74 ++++++++
tools/testing/selftests/bpf/progs/dynptr_fail.c | 94 +++++++----
.../selftests/bpf/progs/kfunc_call_destructive.c | 14 ++
tools/testing/selftests/bpf/progs/lsm.c | 3 +-
.../testing/selftests/bpf/progs/test_autoattach.c | 23 +++
.../testing/selftests/bpf/progs/test_bpf_cookie.c | 4 +-
tools/testing/selftests/bpf/progs/test_bpf_nf.c | 21 +++
.../selftests/bpf/progs/test_helper_restricted.c | 4 +-
tools/testing/selftests/bpf/progs/test_time_tai.c | 24 +++
tools/testing/selftests/bpf/vmtest.sh | 34 ++--
tools/testing/selftests/bpf/xskxceiver.c | 166 +++++++++++++-----
tools/testing/selftests/bpf/xskxceiver.h | 8 +-
61 files changed, 986 insertions(+), 372 deletions(-)
create mode 100644 tools/testing/selftests/bpf/prog_tests/autoattach.c
create mode 100644 tools/testing/selftests/bpf/prog_tests/time_tai.c
create mode 100644 tools/testing/selftests/bpf/progs/kfunc_call_destructive.c
create mode 100644 tools/testing/selftests/bpf/progs/test_autoattach.c
create mode 100644 tools/testing/selftests/bpf/progs/test_time_tai.c
