196 lines
6.6 KiB
C
196 lines
6.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2015 Lennart Poettering
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***/
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#include <sched.h>
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#include <stdio.h>
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#include "sd-id128.h"
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#include "conf-parser.h"
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#include "macro.h"
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#include "nspawn-expose-ports.h"
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#include "nspawn-mount.h"
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typedef enum StartMode {
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START_PID1, /* Run parameters as command line as process 1 */
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START_PID2, /* Use stub init process as PID 1, run parameters as command line as process 2 */
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START_BOOT, /* Search for init system, pass arguments as parameters */
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_START_MODE_MAX,
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_START_MODE_INVALID = -1
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} StartMode;
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typedef enum UserNamespaceMode {
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USER_NAMESPACE_NO,
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USER_NAMESPACE_FIXED,
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USER_NAMESPACE_PICK,
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_USER_NAMESPACE_MODE_MAX,
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_USER_NAMESPACE_MODE_INVALID = -1,
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} UserNamespaceMode;
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typedef enum ResolvConfMode {
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RESOLV_CONF_OFF,
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RESOLV_CONF_COPY_HOST,
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RESOLV_CONF_COPY_STATIC,
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RESOLV_CONF_BIND_HOST,
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RESOLV_CONF_BIND_STATIC,
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RESOLV_CONF_DELETE,
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RESOLV_CONF_AUTO,
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_RESOLV_CONF_MODE_MAX,
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_RESOLV_CONF_MODE_INVALID = -1
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} ResolvConfMode;
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typedef enum LinkJournal {
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LINK_NO,
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LINK_AUTO,
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LINK_HOST,
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LINK_GUEST,
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_LINK_JOURNAL_MAX,
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_LINK_JOURNAL_INVALID = -1
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} LinkJournal;
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typedef enum TimezoneMode {
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TIMEZONE_OFF,
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TIMEZONE_COPY,
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TIMEZONE_BIND,
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TIMEZONE_SYMLINK,
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TIMEZONE_DELETE,
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TIMEZONE_AUTO,
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_TIMEZONE_MODE_MAX,
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_TIMEZONE_MODE_INVALID = -1
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} TimezoneMode;
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typedef enum SettingsMask {
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SETTING_START_MODE = UINT64_C(1) << 0,
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SETTING_ENVIRONMENT = UINT64_C(1) << 1,
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SETTING_USER = UINT64_C(1) << 2,
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SETTING_CAPABILITY = UINT64_C(1) << 3,
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SETTING_KILL_SIGNAL = UINT64_C(1) << 4,
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SETTING_PERSONALITY = UINT64_C(1) << 5,
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SETTING_MACHINE_ID = UINT64_C(1) << 6,
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SETTING_NETWORK = UINT64_C(1) << 7,
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SETTING_EXPOSE_PORTS = UINT64_C(1) << 8,
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SETTING_READ_ONLY = UINT64_C(1) << 9,
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SETTING_VOLATILE_MODE = UINT64_C(1) << 10,
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SETTING_CUSTOM_MOUNTS = UINT64_C(1) << 11,
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SETTING_WORKING_DIRECTORY = UINT64_C(1) << 12,
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SETTING_USERNS = UINT64_C(1) << 13,
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SETTING_NOTIFY_READY = UINT64_C(1) << 14,
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SETTING_PIVOT_ROOT = UINT64_C(1) << 15,
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SETTING_SYSCALL_FILTER = UINT64_C(1) << 16,
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SETTING_HOSTNAME = UINT64_C(1) << 17,
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SETTING_NO_NEW_PRIVILEGES = UINT64_C(1) << 18,
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SETTING_OOM_SCORE_ADJUST = UINT64_C(1) << 19,
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SETTING_CPU_AFFINITY = UINT64_C(1) << 20,
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SETTING_RESOLV_CONF = UINT64_C(1) << 21,
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SETTING_LINK_JOURNAL = UINT64_C(1) << 22,
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SETTING_TIMEZONE = UINT64_C(1) << 23,
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SETTING_RLIMIT_FIRST = UINT64_C(1) << 24, /* we define one bit per resource limit here */
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SETTING_RLIMIT_LAST = UINT64_C(1) << (24 + _RLIMIT_MAX - 1),
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_SETTINGS_MASK_ALL = (UINT64_C(1) << (24 + _RLIMIT_MAX)) -1,
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_SETTING_FORCE_ENUM_WIDTH = UINT64_MAX
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} SettingsMask;
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/* We want to use SETTING_RLIMIT_FIRST in shifts, so make sure it is really 64 bits
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* when used in expressions. */
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#define SETTING_RLIMIT_FIRST ((uint64_t) SETTING_RLIMIT_FIRST)
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#define SETTING_RLIMIT_LAST ((uint64_t) SETTING_RLIMIT_LAST)
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assert_cc(sizeof(SettingsMask) == 8);
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assert_cc(sizeof(SETTING_RLIMIT_FIRST) == 8);
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assert_cc(sizeof(SETTING_RLIMIT_LAST) == 8);
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typedef struct Settings {
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/* [Run] */
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StartMode start_mode;
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char **parameters;
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char **environment;
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char *user;
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uint64_t capability;
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uint64_t drop_capability;
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int kill_signal;
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unsigned long personality;
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sd_id128_t machine_id;
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char *working_directory;
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char *pivot_root_new;
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char *pivot_root_old;
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UserNamespaceMode userns_mode;
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uid_t uid_shift, uid_range;
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bool notify_ready;
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char **syscall_whitelist;
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char **syscall_blacklist;
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struct rlimit *rlimit[_RLIMIT_MAX];
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char *hostname;
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int no_new_privileges;
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int oom_score_adjust;
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bool oom_score_adjust_set;
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cpu_set_t *cpuset;
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unsigned cpuset_ncpus;
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ResolvConfMode resolv_conf;
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LinkJournal link_journal;
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bool link_journal_try;
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TimezoneMode timezone;
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/* [Image] */
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int read_only;
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VolatileMode volatile_mode;
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CustomMount *custom_mounts;
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size_t n_custom_mounts;
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int userns_chown;
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/* [Network] */
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int private_network;
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int network_veth;
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char *network_bridge;
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char *network_zone;
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char **network_interfaces;
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char **network_macvlan;
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char **network_ipvlan;
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char **network_veth_extra;
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ExposePort *expose_ports;
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} Settings;
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int settings_load(FILE *f, const char *path, Settings **ret);
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Settings* settings_free(Settings *s);
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bool settings_network_veth(Settings *s);
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bool settings_private_network(Settings *s);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Settings*, settings_free);
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const struct ConfigPerfItem* nspawn_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
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CONFIG_PARSER_PROTOTYPE(config_parse_capability);
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CONFIG_PARSER_PROTOTYPE(config_parse_id128);
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CONFIG_PARSER_PROTOTYPE(config_parse_expose_port);
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CONFIG_PARSER_PROTOTYPE(config_parse_volatile_mode);
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CONFIG_PARSER_PROTOTYPE(config_parse_pivot_root);
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CONFIG_PARSER_PROTOTYPE(config_parse_bind);
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CONFIG_PARSER_PROTOTYPE(config_parse_tmpfs);
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CONFIG_PARSER_PROTOTYPE(config_parse_overlay);
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CONFIG_PARSER_PROTOTYPE(config_parse_veth_extra);
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CONFIG_PARSER_PROTOTYPE(config_parse_network_zone);
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CONFIG_PARSER_PROTOTYPE(config_parse_boot);
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CONFIG_PARSER_PROTOTYPE(config_parse_pid2);
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CONFIG_PARSER_PROTOTYPE(config_parse_private_users);
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CONFIG_PARSER_PROTOTYPE(config_parse_syscall_filter);
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CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
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CONFIG_PARSER_PROTOTYPE(config_parse_oom_score_adjust);
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CONFIG_PARSER_PROTOTYPE(config_parse_cpu_affinity);
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CONFIG_PARSER_PROTOTYPE(config_parse_resolv_conf);
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CONFIG_PARSER_PROTOTYPE(config_parse_link_journal);
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CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
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const char *resolv_conf_mode_to_string(ResolvConfMode a) _const_;
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ResolvConfMode resolv_conf_mode_from_string(const char *s) _pure_;
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const char *timezone_mode_to_string(TimezoneMode a) _const_;
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TimezoneMode timezone_mode_from_string(const char *s) _pure_;
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int parse_link_journal(const char *s, LinkJournal *ret_mode, bool *ret_try);
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