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-rw-r--r--src/libsystemd-basic/include/systemd-basic/capability-util.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/libsystemd-basic/include/systemd-basic/capability-util.h b/src/libsystemd-basic/include/systemd-basic/capability-util.h
new file mode 100644
index 0000000000..35a896e229
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+++ b/src/libsystemd-basic/include/systemd-basic/capability-util.h
@@ -0,0 +1,57 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/capability.h>
+#include <sys/types.h>
+
+#include "macro.h"
+#include "util.h"
+
+#define CAP_ALL (uint64_t) -1
+
+unsigned long cap_last_cap(void);
+int have_effective_cap(int value);
+int capability_bounding_set_drop(uint64_t keep, bool right_now);
+int capability_bounding_set_drop_usermode(uint64_t keep);
+
+int capability_ambient_set_apply(uint64_t set, bool also_inherit);
+int capability_update_inherited_set(cap_t caps, uint64_t ambient_set);
+
+int drop_privileges(uid_t uid, gid_t gid, uint64_t keep_capabilities);
+
+int drop_capability(cap_value_t cv);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(cap_t, cap_free);
+#define _cleanup_cap_free_ _cleanup_(cap_freep)
+
+static inline void cap_free_charpp(char **p) {
+ if (*p)
+ cap_free(*p);
+}
+#define _cleanup_cap_free_charp_ _cleanup_(cap_free_charpp)
+
+static inline bool cap_test_all(uint64_t caps) {
+ uint64_t m;
+ m = (UINT64_C(1) << (cap_last_cap() + 1)) - 1;
+ return (caps & m) == m;
+}