Andrea Terzolo 2d2c95162d libbpf: Skip modules BTF loading when CAP_SYS_ADMIN is missing ... If during CO-RE relocations libbpf is not able to find the target type in the running kernel BTF, it searches for it in modules' BTF. The downside of this approach is that loading modules' BTF requires CAP_SYS_ADMIN and this prevents BPF applications from running with more granular capabilities (e.g. CAP_BPF) when they don't need to search types into modules' BTF. This patch skips by default modules' BTF loading phase when CAP_SYS_ADMIN is missing. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Co-developed-by: Federico Di Pierro <nierro92@gmail.com> Signed-off-by: Federico Di Pierro <nierro92@gmail.com> Signed-off-by: Andrea Terzolo <andreaterzolo3@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/CAGQdkDvYU_e=_NX+6DRkL_-TeH3p+QtsdZwHkmH0w3Fuzw0C4w@mail.gmail.com Link: https://lore.kernel.org/bpf/20230626093614.21270-1-andreaterzolo3@gmail.com		2023-06-30 12:27:16 -07:00
..
.gitignore	libbpf: Make libbpf_version.h non-auto-generated	2021-09-13 15:36:47 -07:00
bpf.c	libbpf: Add opts-based bpf_obj_pin() API and add support for path_fd	2023-05-23 23:41:01 +02:00
bpf.h	libbpf: Add opts-based bpf_obj_pin() API and add support for path_fd	2023-05-23 23:41:01 +02:00
bpf_core_read.h	libbpf: Fix BPF_PROBE_READ{_STR}_INTO() on s390x	2023-01-28 12:45:14 -08:00
bpf_endian.h	libbpf: Make bpf_endian co-exist with vmlinux.h	2020-07-01 09:06:12 +02:00
bpf_gen_internal.h	libbpf: Support kfunc detection in light skeleton.	2023-03-22 09:31:05 -07:00
bpf_helpers.h	libbpf: fix offsetof() and container_of() to work with CO-RE	2023-05-12 12:05:21 -07:00
bpf_prog_linfo.c	libbpf: Streamline error reporting for high-level APIs	2021-05-25 17:32:35 -07:00
bpf_tracing.h	libbpf: Fix comment about arc and riscv arch in bpf_tracing.h	2023-05-04 17:11:04 -07:00
btf.c	libbpf: Ensure libbpf always opens files with O_CLOEXEC	2023-05-26 12:05:32 +02:00
btf.h	libbpf: Don't require full struct enum64 in UAPI headers	2022-09-27 20:45:17 +02:00
btf_dump.c	libbpf: btf_dump_type_data_check_overflow needs to consider BTF_MEMBER_BITFIELD_SIZE	2023-05-01 15:37:38 +02:00
Build	libbpf: Implement basic zip archive parsing support	2023-03-01 16:05:34 -08:00
gen_loader.c	libbpf: Store zero fd to fd_array for loader kfunc relocation	2023-05-16 22:09:23 -07:00
hashmap.c	libbpf: Hashmap interface update to allow both long and void* keys/values	2022-11-09 20:45:14 -08:00
hashmap.h	libbpf: Hashmap.h update to fix build issues using LLVM14	2022-11-11 10:24:23 -08:00
libbpf.c	libbpf: Skip modules BTF loading when CAP_SYS_ADMIN is missing	2023-06-30 12:27:16 -07:00
libbpf.h	libbpf: Add capability for resizing datasec maps	2023-05-24 11:44:16 -07:00
libbpf.map	libbpf: Add opts-based bpf_obj_pin() API and add support for path_fd	2023-05-23 23:41:01 +02:00
libbpf.pc.template
libbpf_common.h	libbpf: cleanup LIBBPF_DEPRECATED_SINCE supporting macros for v0.x	2022-06-28 13:13:33 -07:00
libbpf_errno.c	libbpf: Optimized return value in libbpf_strerror when errno is libbpf errno	2022-12-14 18:39:33 +01:00
libbpf_internal.h	libbpf: Revert poisoning of strlcpy	2023-03-10 10:19:25 -08:00
libbpf_legacy.h	libbpf: Clean up deprecated and legacy aliases	2022-08-17 22:42:56 +02:00
libbpf_probes.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-06-08 11:35:14 -07:00
libbpf_version.h	libbpf: Start v1.3 development cycle	2023-05-23 21:39:12 +02:00
linker.c	libbpf: Fix double-free when linker processes empty sections	2023-03-27 20:02:15 -07:00
Makefile	Merge remote-tracking branch 'torvalds/master' into perf/core	2022-12-16 09:53:53 -03:00
netlink.c	libbpf: Fix bpf_xdp_query() in old kernels	2023-02-27 15:26:12 -08:00
nlattr.c	libbpf: Fix alen calculation in libbpf_nla_dump_errormsg()	2023-02-10 15:27:22 -08:00
nlattr.h	libbpf: add API to get XDP/XSK supported features	2023-02-02 20:48:24 -08:00
relo_core.c	libbpf: Remove several dead assignments	2023-03-01 11:13:11 -08:00
relo_core.h	bpf, libbpf: Add type match support	2022-07-05 21:14:25 -07:00
ringbuf.c	libbpf: Use bpf_{btf,link,map,prog}_get_info_by_fd()	2023-02-16 15:32:45 -08:00
skel_internal.h	libbpf: add map_get_fd_by_id and map_delete_elem in light skeleton	2022-08-25 18:52:29 -07:00
str_error.c
str_error.h
strset.c	libbpf: Hashmap interface update to allow both long and void* keys/values	2022-11-09 20:45:14 -08:00
strset.h	libbpf: Extract internal set-of-strings datastructure APIs	2021-03-18 16:14:22 -07:00
usdt.bpf.h	libbpf: Fix unbounded memory access in bpf_usdt_arg()	2023-01-28 12:45:14 -08:00
usdt.c	libbpf: Ensure libbpf always opens files with O_CLOEXEC	2023-05-26 12:05:32 +02:00
zip.c	libbpf: Ignore warnings about "inefficient alignment"	2023-03-16 18:20:08 +01:00
zip.h	libbpf: Implement basic zip archive parsing support	2023-03-01 16:05:34 -08:00