twx-linux/tools
KP Singh ea2e6467ac bpf: Return hashes of maps in BPF_OBJ_GET_INFO_BY_FD
Currently only array maps are supported, but the implementation can be
extended for other maps and objects. The hash is memoized only for
exclusive and frozen maps as their content is stable until the exclusive
program modifies the map.

This is required for BPF signing, enabling a trusted loader program to
verify a map's integrity. The loader retrieves
the map's runtime hash from the kernel and compares it against an
expected hash computed at build time.

Signed-off-by: KP Singh <kpsingh@kernel.org>
Link: https://lore.kernel.org/r/20250914215141.15144-7-kpsingh@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-18 19:11:42 -07:00
..
accounting tools/getdelays: add backward compatibility for taskstats version 2025-08-02 12:01:41 -07:00
arch ARM: 2025-08-29 13:54:26 -07:00
bootconfig bootconfig: Fix negative seeks on 32-bit with LFS enabled 2025-08-21 08:16:31 +09:00
bpf bpftool: Search for tracefs at /sys/kernel/tracing first 2025-09-15 10:10:28 -07:00
build
certs
cgroup memcg_slabinfo: Fix use of PG_slab 2025-07-23 11:55:22 +02:00
counter
crypto
debugging
firewire
firmware
gpio tools: gpio: remove the include directory on make clean 2025-09-04 16:29:28 +02:00
hv
iio
include bpf: Return hashes of maps in BPF_OBJ_GET_INFO_BY_FD 2025-09-18 19:11:42 -07:00
kvm/kvm_stat
laptop
leds
lib libbpf: Support exclusive map creation 2025-09-18 19:11:42 -07:00
memory-model
mm
net tools: ynl-gen: fix nested array counting 2025-09-03 15:18:34 -07:00
objtool objtool/LoongArch: Get table size correctly if LTO is enabled 2025-08-20 22:23:15 +08:00
pcmcia
perf perf symbol-elf: Add support for the block argument for libbfd 2025-09-04 16:37:35 -07:00
power cpupower: Allow control of boost feature on non-x86 based systems with boost support. 2025-08-15 10:49:14 -06:00
rcu
sched
sched_ext
scripts tools headers: Sync syscall tables with the kernel source 2025-08-18 13:49:25 -07:00
sound
spi
testing bpf: Return hashes of maps in BPF_OBJ_GET_INFO_BY_FD 2025-09-18 19:11:42 -07:00
thermal
time
tracing rtla: Check pkg-config install 2025-08-19 20:32:54 -04:00
usb
verification rv: Add opid per-cpu monitor 2025-07-28 16:47:35 -04:00
virtio
wmi
workqueue
writeback
Makefile