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| author | Alexei Starovoitov <ast@kernel.org> | 2026-09-30 09:59:20 +0000 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-10-01 18:40:05 +0200 |
| commit | aeb709c767aeca996e6011133e4f7bdb2a4af652 (patch) | |
| tree | c1c2bdbb4b6b7174a5bbe9e4c2c1f1c0204adcb5 /security/landlock/limits.h | |
| download | linux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.tar.gz linux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.zip | |
selftests/bpf: Add a test for objects stuck in free_by_rcu_ttracegrafted
Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first
free_bulk() starts RCU tasks trace GP and the rest of the elements are
freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear
in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and
waiting_for_gp_ttrace lists are empty.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'security/landlock/limits.h')
| -rw-r--r-- | security/landlock/limits.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/security/landlock/limits.h b/security/landlock/limits.h new file mode 100644 index 000000000..1a7c5fb8f --- /dev/null +++ b/security/landlock/limits.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Landlock - Limits for different components + * + * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net> + * Copyright © 2018-2020 ANSSI + * Copyright © 2021-2025 Microsoft Corporation + */ + +#ifndef _SECURITY_LANDLOCK_LIMITS_H +#define _SECURITY_LANDLOCK_LIMITS_H + +#include <linux/bitops.h> +#include <linux/limits.h> +#include <uapi/linux/landlock.h> + +/* clang-format off */ + +#define LANDLOCK_MAX_NUM_LAYERS 16 +#define LANDLOCK_MAX_NUM_RULES U32_MAX + +#define LANDLOCK_LAST_ACCESS_FS LANDLOCK_ACCESS_FS_RESOLVE_UNIX +#define LANDLOCK_MASK_ACCESS_FS ((LANDLOCK_LAST_ACCESS_FS << 1) - 1) +#define LANDLOCK_NUM_ACCESS_FS __const_hweight64(LANDLOCK_MASK_ACCESS_FS) + +#define LANDLOCK_LAST_ACCESS_NET LANDLOCK_ACCESS_NET_CONNECT_SEND_UDP +#define LANDLOCK_MASK_ACCESS_NET ((LANDLOCK_LAST_ACCESS_NET << 1) - 1) +#define LANDLOCK_NUM_ACCESS_NET __const_hweight64(LANDLOCK_MASK_ACCESS_NET) + +#define LANDLOCK_LAST_SCOPE LANDLOCK_SCOPE_SIGNAL +#define LANDLOCK_MASK_SCOPE ((LANDLOCK_LAST_SCOPE << 1) - 1) +#define LANDLOCK_NUM_SCOPE __const_hweight64(LANDLOCK_MASK_SCOPE) + +#define LANDLOCK_NUM_ACCESS_MAX \ + MAX(MAX(LANDLOCK_NUM_ACCESS_FS, LANDLOCK_NUM_ACCESS_NET), LANDLOCK_NUM_SCOPE) + +#define LANDLOCK_LAST_RESTRICT_SELF LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS +#define LANDLOCK_MASK_RESTRICT_SELF ((LANDLOCK_LAST_RESTRICT_SELF << 1) - 1) + +/* clang-format on */ + +#endif /* _SECURITY_LANDLOCK_LIMITS_H */ |