Hi David, hi Jakub,
The following pull-request contains BPF updates for your *net* tree.
We've added 13 non-merge commits during the last 8 day(s) which contain
a total of 21 files changed, 817 insertions(+), 382 deletions(-).
The main changes are:
1) Fix multiple ringbuf bugs in particular to prevent writable mmap of
read-only pages, from Andrii Nakryiko & Thadeu Lima de Souza Cascardo.
2) Fix verifier alu32 known-const subregister bound tracking for bitwise
operations and/or/xor, from Daniel Borkmann.
3) Reject trampoline attachment for functions with variable arguments,
and also add a deny list of other forbidden functions, from Jiri Olsa.
4) Fix nested bpf_bprintf_prepare() calls used by various helpers by
switching to per-CPU buffers, from Florent Revest.
5) Fix kernel compilation with BTF debug info on ppc64 due to pahole
missing TCP-CC functions like cubictcp_init, from Martin KaFai Lau.
6) Add a kconfig entry to provide an option to disallow unprivileged
BPF by default, from Daniel Borkmann.
7) Fix libbpf compilation for older libelf when GELF_ST_VISIBILITY()
macro is not available, from Arnaldo Carvalho de Melo.
8) Migrate test_tc_redirect to test_progs framework as prep work
for upcoming skb_change_head() fix & selftest, from Jussi Maki.
9) Fix a libbpf segfault in add_dummy_ksym_var() if BTF is not
present, from Ian Rogers.
10) Fix tx_only micro-benchmark in xdpsock BPF sample with proper frame
size, from Magnus Karlsson.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Alexei Starovoitov, Andrii Nakryiko, John Fastabend, Maciej Fijalkowski,
Ryota Shiga, Manfred Paul, Thadeu Lima de Souza Cascardo
----------------------------------------------------------------
The following changes since commit 1682d8df20aa505f6ab12c76e934b26ede39c529:
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (2021-05-03 18:40:17 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
for you to fetch changes up to 569c484f9995f489f2b80dd134269fe07d2b900d:
bpf: Limit static tcp-cc functions in the .BTF_ids list to x86 (2021-05-11 23:23:07 +0200)
----------------------------------------------------------------
Andrii Nakryiko (1):
bpf: Prevent writable memory-mapping of read-only ringbuf pages
Arnaldo Carvalho de Melo (1):
libbpf: Provide GELF_ST_VISIBILITY() define for older libelf
Daniel Borkmann (3):
bpf: Fix alu32 const subreg bound tracking on bitwise operations
bpf, kconfig: Add consolidated menu entry for bpf with core options
bpf: Add kconfig knob for disabling unpriv bpf by default
Florent Revest (1):
bpf: Fix nested bpf_bprintf_prepare with more per-cpu buffers
Ian Rogers (1):
libbpf: Add NULL check to add_dummy_ksym_var
Jiri Olsa (2):
bpf: Forbid trampoline attach for functions with variable arguments
bpf: Add deny list of btf ids check for tracing programs
Jussi Maki (1):
selftests/bpf: Rewrite test_tc_redirect.sh as prog_tests/tc_redirect.c
Magnus Karlsson (1):
samples/bpf: Consider frame size in tx_only of xdpsock sample
Martin KaFai Lau (1):
bpf: Limit static tcp-cc functions in the .BTF_ids list to x86
Thadeu Lima de Souza Cascardo (1):
bpf, ringbuf: Deny reserve of buffers larger than ringbuf
Documentation/admin-guide/sysctl/kernel.rst | 17 +-
init/Kconfig | 41 +-
kernel/bpf/Kconfig | 88 +++
kernel/bpf/btf.c | 12 +
kernel/bpf/helpers.c | 27 +-
kernel/bpf/ringbuf.c | 24 +-
kernel/bpf/syscall.c | 3 +-
kernel/bpf/verifier.c | 36 +-
kernel/sysctl.c | 29 +-
net/Kconfig | 27 -
net/ipv4/bpf_tcp_ca.c | 2 +
samples/bpf/xdpsock_user.c | 2 +-
tools/lib/bpf/libbpf.c | 3 +
tools/lib/bpf/libbpf_internal.h | 5 +
tools/testing/selftests/bpf/network_helpers.c | 2 +-
tools/testing/selftests/bpf/network_helpers.h | 1 +
.../testing/selftests/bpf/prog_tests/tc_redirect.c | 589 +++++++++++++++++++++
tools/testing/selftests/bpf/progs/test_tc_neigh.c | 33 +-
.../selftests/bpf/progs/test_tc_neigh_fib.c | 9 +-
tools/testing/selftests/bpf/progs/test_tc_peer.c | 33 +-
tools/testing/selftests/bpf/test_tc_redirect.sh | 216 --------
21 files changed, 817 insertions(+), 382 deletions(-)
create mode 100644 kernel/bpf/Kconfig
create mode 100644 tools/testing/selftests/bpf/prog_tests/tc_redirect.c
delete mode 100755 tools/testing/selftests/bpf/test_tc_redirect.sh
