46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/capability.h>
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#include <sys/types.h>
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#include "macro.h"
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#include "util.h"
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#define CAP_ALL (uint64_t) -1
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unsigned long cap_last_cap(void);
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int have_effective_cap(int value);
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int capability_bounding_set_drop(uint64_t keep, bool right_now);
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int capability_bounding_set_drop_usermode(uint64_t keep);
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int capability_ambient_set_apply(uint64_t set, bool also_inherit);
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int capability_update_inherited_set(cap_t caps, uint64_t ambient_set);
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int drop_privileges(uid_t uid, gid_t gid, uint64_t keep_capabilities);
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int drop_capability(cap_value_t cv);
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DEFINE_TRIVIAL_CLEANUP_FUNC(cap_t, cap_free);
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#define _cleanup_cap_free_ _cleanup_(cap_freep)
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static inline void cap_free_charpp(char **p) {
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if (*p)
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cap_free(*p);
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}
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#define _cleanup_cap_free_charp_ _cleanup_(cap_free_charpp)
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static inline bool cap_test_all(uint64_t caps) {
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uint64_t m;
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m = (UINT64_C(1) << (cap_last_cap() + 1)) - 1;
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return FLAGS_SET(caps, m);
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}
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bool ambient_capabilities_supported(void);
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/* Identical to linux/capability.h's CAP_TO_MASK(), but uses an unsigned 1U instead of a signed 1 for shifting left, in
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* order to avoid complaints about shifting a signed int left by 31 bits, which would make it negative. */
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#define CAP_TO_MASK_CORRECTED(x) (1U << ((x) & 31U))
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