87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <seccomp.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "set.h"
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const char* seccomp_arch_to_string(uint32_t c);
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int seccomp_arch_from_string(const char *n, uint32_t *ret);
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int seccomp_init_for_arch(scmp_filter_ctx *ret, uint32_t arch, uint32_t default_action);
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bool is_seccomp_available(void);
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typedef struct SyscallFilterSet {
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const char *name;
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const char *help;
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const char *value;
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} SyscallFilterSet;
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enum {
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/* Please leave DEFAULT first, but sort the rest alphabetically */
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SYSCALL_FILTER_SET_DEFAULT,
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SYSCALL_FILTER_SET_BASIC_IO,
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SYSCALL_FILTER_SET_CLOCK,
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SYSCALL_FILTER_SET_CPU_EMULATION,
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SYSCALL_FILTER_SET_DEBUG,
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SYSCALL_FILTER_SET_FILE_SYSTEM,
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SYSCALL_FILTER_SET_IO_EVENT,
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SYSCALL_FILTER_SET_IPC,
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SYSCALL_FILTER_SET_KEYRING,
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SYSCALL_FILTER_SET_MODULE,
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SYSCALL_FILTER_SET_MOUNT,
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SYSCALL_FILTER_SET_NETWORK_IO,
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SYSCALL_FILTER_SET_OBSOLETE,
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SYSCALL_FILTER_SET_PRIVILEGED,
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SYSCALL_FILTER_SET_PROCESS,
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SYSCALL_FILTER_SET_RAW_IO,
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SYSCALL_FILTER_SET_REBOOT,
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SYSCALL_FILTER_SET_RESOURCES,
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SYSCALL_FILTER_SET_SWAP,
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_SYSCALL_FILTER_SET_MAX
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};
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extern const SyscallFilterSet syscall_filter_sets[];
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const SyscallFilterSet *syscall_filter_set_find(const char *name);
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int seccomp_load_syscall_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action);
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int seccomp_load_syscall_filter_set_raw(uint32_t default_action, Set* set, uint32_t action);
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int seccomp_restrict_archs(Set *archs);
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int seccomp_restrict_namespaces(unsigned long retain);
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int seccomp_protect_sysctl(void);
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int seccomp_restrict_address_families(Set *address_families, bool whitelist);
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int seccomp_restrict_realtime(void);
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int seccomp_memory_deny_write_execute(void);
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extern const uint32_t seccomp_local_archs[];
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#define SECCOMP_FOREACH_LOCAL_ARCH(arch) \
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for (unsigned _i = ({ (arch) = seccomp_local_archs[0]; 0; }); \
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seccomp_local_archs[_i] != (uint32_t) -1; \
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(arch) = seccomp_local_archs[++_i])
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DEFINE_TRIVIAL_CLEANUP_FUNC(scmp_filter_ctx, seccomp_release);
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