58f6ab4454
Building on previous commit, let's pass the unit name when parsing dbus message or builtin whitelist, which is better than nothing. seccomp_parse_syscall_filter() is not needed anymore, so it is removed, and seccomp_parse_syscall_filter_full() is renamed to take its place.
101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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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_AIO,
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SYSCALL_FILTER_SET_BASIC_IO,
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SYSCALL_FILTER_SET_CHOWN,
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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_MEMLOCK,
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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_SETUID,
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SYSCALL_FILTER_SET_SIGNAL,
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SYSCALL_FILTER_SET_SWAP,
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SYSCALL_FILTER_SET_SYNC,
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SYSCALL_FILTER_SET_SYSTEM_SERVICE,
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SYSCALL_FILTER_SET_TIMER,
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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_filter_set_add(Hashmap *s, bool b, const SyscallFilterSet *set);
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int seccomp_add_syscall_filter_item(scmp_filter_ctx *ctx, const char *name, uint32_t action, char **exclude, bool log_missing);
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int seccomp_load_syscall_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action, bool log_missing);
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int seccomp_load_syscall_filter_set_raw(uint32_t default_action, Hashmap* set, uint32_t action, bool log_missing);
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typedef enum SeccompParseFlags {
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SECCOMP_PARSE_INVERT = 1 << 0,
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SECCOMP_PARSE_WHITELIST = 1 << 1,
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SECCOMP_PARSE_LOG = 1 << 2,
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SECCOMP_PARSE_PERMISSIVE = 1 << 3,
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} SeccompParseFlags;
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int seccomp_parse_syscall_filter(
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const char *name,
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int errno_num,
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Hashmap *filter,
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SeccompParseFlags flags,
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const char *unit,
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const char *filename, unsigned line);
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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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int seccomp_lock_personality(unsigned long personality);
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int seccomp_protect_hostname(void);
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int seccomp_restrict_suid_sgid(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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int parse_syscall_archs(char **l, Set **archs);
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