| /* SPDX-License-Identifier: LGPL-2.1+ */ |
| #pragma once |
| |
| #include <seccomp.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| |
| #include "set.h" |
| |
| const char* seccomp_arch_to_string(uint32_t c); |
| int seccomp_arch_from_string(const char *n, uint32_t *ret); |
| |
| int seccomp_init_for_arch(scmp_filter_ctx *ret, uint32_t arch, uint32_t default_action); |
| |
| bool is_seccomp_available(void); |
| |
| typedef struct SyscallFilterSet { |
| const char *name; |
| const char *help; |
| const char *value; |
| } SyscallFilterSet; |
| |
| enum { |
| /* Please leave DEFAULT first, but sort the rest alphabetically */ |
| SYSCALL_FILTER_SET_DEFAULT, |
| SYSCALL_FILTER_SET_AIO, |
| SYSCALL_FILTER_SET_BASIC_IO, |
| SYSCALL_FILTER_SET_CHOWN, |
| SYSCALL_FILTER_SET_CLOCK, |
| SYSCALL_FILTER_SET_CPU_EMULATION, |
| SYSCALL_FILTER_SET_DEBUG, |
| SYSCALL_FILTER_SET_FILE_SYSTEM, |
| SYSCALL_FILTER_SET_IO_EVENT, |
| SYSCALL_FILTER_SET_IPC, |
| SYSCALL_FILTER_SET_KEYRING, |
| SYSCALL_FILTER_SET_MEMLOCK, |
| SYSCALL_FILTER_SET_MODULE, |
| SYSCALL_FILTER_SET_MOUNT, |
| SYSCALL_FILTER_SET_NETWORK_IO, |
| SYSCALL_FILTER_SET_OBSOLETE, |
| SYSCALL_FILTER_SET_PRIVILEGED, |
| SYSCALL_FILTER_SET_PROCESS, |
| SYSCALL_FILTER_SET_RAW_IO, |
| SYSCALL_FILTER_SET_REBOOT, |
| SYSCALL_FILTER_SET_RESOURCES, |
| SYSCALL_FILTER_SET_SETUID, |
| SYSCALL_FILTER_SET_SIGNAL, |
| SYSCALL_FILTER_SET_SWAP, |
| SYSCALL_FILTER_SET_SYNC, |
| SYSCALL_FILTER_SET_SYSTEM_SERVICE, |
| SYSCALL_FILTER_SET_TIMER, |
| _SYSCALL_FILTER_SET_MAX |
| }; |
| |
| extern const SyscallFilterSet syscall_filter_sets[]; |
| |
| const SyscallFilterSet *syscall_filter_set_find(const char *name); |
| |
| int seccomp_filter_set_add(Hashmap *s, bool b, const SyscallFilterSet *set); |
| |
| int seccomp_add_syscall_filter_item(scmp_filter_ctx *ctx, const char *name, uint32_t action, char **exclude, bool log_missing); |
| |
| int seccomp_load_syscall_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action, bool log_missing); |
| int seccomp_load_syscall_filter_set_raw(uint32_t default_action, Hashmap* set, uint32_t action, bool log_missing); |
| |
| typedef enum SeccompParseFlags { |
| SECCOMP_PARSE_INVERT = 1 << 0, |
| SECCOMP_PARSE_WHITELIST = 1 << 1, |
| SECCOMP_PARSE_LOG = 1 << 2, |
| SECCOMP_PARSE_PERMISSIVE = 1 << 3, |
| } SeccompParseFlags; |
| |
| int seccomp_parse_syscall_filter_full( |
| const char *name, int errno_num, Hashmap *filter, SeccompParseFlags flags, |
| const char *unit, const char *filename, unsigned line); |
| |
| static inline int seccomp_parse_syscall_filter(const char *name, int errno_num, Hashmap *filter, SeccompParseFlags flags) { |
| return seccomp_parse_syscall_filter_full(name, errno_num, filter, flags, NULL, NULL, 0); |
| } |
| |
| int seccomp_restrict_archs(Set *archs); |
| int seccomp_restrict_namespaces(unsigned long retain); |
| int seccomp_protect_sysctl(void); |
| int seccomp_restrict_address_families(Set *address_families, bool whitelist); |
| int seccomp_restrict_realtime(void); |
| int seccomp_memory_deny_write_execute(void); |
| int seccomp_lock_personality(unsigned long personality); |
| int seccomp_restrict_suid_sgid(void); |
| |
| extern const uint32_t seccomp_local_archs[]; |
| |
| #define SECCOMP_FOREACH_LOCAL_ARCH(arch) \ |
| for (unsigned _i = ({ (arch) = seccomp_local_archs[0]; 0; }); \ |
| seccomp_local_archs[_i] != (uint32_t) -1; \ |
| (arch) = seccomp_local_archs[++_i]) |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(scmp_filter_ctx, seccomp_release); |
| |
| int parse_syscall_archs(char **l, Set **archs); |