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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <sched.h>
#include <stdio.h>
#if HAVE_SECCOMP
#include <seccomp.h>
#endif
#include "sd-bus.h"
#include "sd-id128.h"
#include "capability-util.h"
#include "conf-parser.h"
#include "cpu-set-util.h"
#include "macro.h"
#include "missing_resource.h"
#include "nspawn-expose-ports.h"
#include "nspawn-mount.h"
#include "time-util.h"
typedef enum StartMode {
START_PID1, /* Run parameters as command line as process 1 */
START_PID2, /* Use stub init process as PID 1, run parameters as command line as process 2 */
START_BOOT, /* Search for init system, pass arguments as parameters */
_START_MODE_MAX,
_START_MODE_INVALID = -EINVAL,
} StartMode;
typedef enum UserNamespaceMode {
USER_NAMESPACE_NO,
USER_NAMESPACE_FIXED,
USER_NAMESPACE_PICK,
_USER_NAMESPACE_MODE_MAX,
_USER_NAMESPACE_MODE_INVALID = -EINVAL,
} UserNamespaceMode;
typedef enum UserNamespaceOwnership {
USER_NAMESPACE_OWNERSHIP_OFF,
USER_NAMESPACE_OWNERSHIP_CHOWN,
USER_NAMESPACE_OWNERSHIP_MAP,
USER_NAMESPACE_OWNERSHIP_AUTO,
_USER_NAMESPACE_OWNERSHIP_MAX,
_USER_NAMESPACE_OWNERSHIP_INVALID = -1,
} UserNamespaceOwnership;
typedef enum ResolvConfMode {
RESOLV_CONF_OFF,
RESOLV_CONF_COPY_HOST, /* /etc/resolv.conf */
RESOLV_CONF_COPY_STATIC, /* /usr/lib/systemd/resolv.conf */
RESOLV_CONF_COPY_UPLINK, /* /run/systemd/resolve/resolv.conf */
RESOLV_CONF_COPY_STUB, /* /run/systemd/resolve/stub-resolv.conf */
RESOLV_CONF_REPLACE_HOST,
RESOLV_CONF_REPLACE_STATIC,
RESOLV_CONF_REPLACE_UPLINK,
RESOLV_CONF_REPLACE_STUB,
RESOLV_CONF_BIND_HOST,
RESOLV_CONF_BIND_STATIC,
RESOLV_CONF_BIND_UPLINK,
RESOLV_CONF_BIND_STUB,
RESOLV_CONF_DELETE,
RESOLV_CONF_AUTO,
_RESOLV_CONF_MODE_MAX,
_RESOLV_CONF_MODE_INVALID = -EINVAL,
} ResolvConfMode;
typedef enum LinkJournal {
LINK_NO,
LINK_AUTO,
LINK_HOST,
LINK_GUEST,
_LINK_JOURNAL_MAX,
_LINK_JOURNAL_INVALID = -EINVAL,
} LinkJournal;
typedef enum TimezoneMode {
TIMEZONE_OFF,
TIMEZONE_COPY,
TIMEZONE_BIND,
TIMEZONE_SYMLINK,
TIMEZONE_DELETE,
TIMEZONE_AUTO,
_TIMEZONE_MODE_MAX,
_TIMEZONE_MODE_INVALID = -EINVAL,
} TimezoneMode;
typedef enum ConsoleMode {
CONSOLE_INTERACTIVE,
CONSOLE_READ_ONLY,
CONSOLE_PASSIVE,
CONSOLE_PIPE,
_CONSOLE_MODE_MAX,
_CONSOLE_MODE_INVALID = -EINVAL,
} ConsoleMode;
typedef enum SettingsMask {
SETTING_START_MODE = UINT64_C(1) << 0,
SETTING_ENVIRONMENT = UINT64_C(1) << 1,
SETTING_USER = UINT64_C(1) << 2,
SETTING_CAPABILITY = UINT64_C(1) << 3,
SETTING_KILL_SIGNAL = UINT64_C(1) << 4,
SETTING_PERSONALITY = UINT64_C(1) << 5,
SETTING_MACHINE_ID = UINT64_C(1) << 6,
SETTING_NETWORK = UINT64_C(1) << 7,
SETTING_EXPOSE_PORTS = UINT64_C(1) << 8,
SETTING_READ_ONLY = UINT64_C(1) << 9,
SETTING_VOLATILE_MODE = UINT64_C(1) << 10,
SETTING_CUSTOM_MOUNTS = UINT64_C(1) << 11,
SETTING_WORKING_DIRECTORY = UINT64_C(1) << 12,
SETTING_USERNS = UINT64_C(1) << 13,
SETTING_NOTIFY_READY = UINT64_C(1) << 14,
SETTING_PIVOT_ROOT = UINT64_C(1) << 15,
SETTING_SYSCALL_FILTER = UINT64_C(1) << 16,
SETTING_HOSTNAME = UINT64_C(1) << 17,
SETTING_NO_NEW_PRIVILEGES = UINT64_C(1) << 18,
SETTING_OOM_SCORE_ADJUST = UINT64_C(1) << 19,
SETTING_CPU_AFFINITY = UINT64_C(1) << 20,
SETTING_RESOLV_CONF = UINT64_C(1) << 21,
SETTING_LINK_JOURNAL = UINT64_C(1) << 22,
SETTING_TIMEZONE = UINT64_C(1) << 23,
SETTING_EPHEMERAL = UINT64_C(1) << 24,
SETTING_SLICE = UINT64_C(1) << 25,
SETTING_DIRECTORY = UINT64_C(1) << 26,
SETTING_USE_CGNS = UINT64_C(1) << 27,
SETTING_CLONE_NS_FLAGS = UINT64_C(1) << 28,
SETTING_CONSOLE_MODE = UINT64_C(1) << 29,
SETTING_CREDENTIALS = UINT64_C(1) << 30,
SETTING_BIND_USER = UINT64_C(1) << 31,
SETTING_SUPPRESS_SYNC = UINT64_C(1) << 32,
SETTING_RLIMIT_FIRST = UINT64_C(1) << 33, /* we define one bit per resource limit here */
SETTING_RLIMIT_LAST = UINT64_C(1) << (33 + _RLIMIT_MAX - 1),
_SETTINGS_MASK_ALL = (UINT64_C(1) << (33 + _RLIMIT_MAX)) -1,
_SETTING_FORCE_ENUM_WIDTH = UINT64_MAX
} SettingsMask;
/* We want to use SETTING_RLIMIT_FIRST in shifts, so make sure it is really 64 bits
* when used in expressions. */
#define SETTING_RLIMIT_FIRST ((uint64_t) SETTING_RLIMIT_FIRST)
#define SETTING_RLIMIT_LAST ((uint64_t) SETTING_RLIMIT_LAST)
assert_cc(sizeof(SettingsMask) == 8);
assert_cc(sizeof(SETTING_RLIMIT_FIRST) == 8);
assert_cc(sizeof(SETTING_RLIMIT_LAST) == 8);
typedef struct DeviceNode {
char *path;
unsigned major;
unsigned minor;
mode_t mode;
uid_t uid;
gid_t gid;
} DeviceNode;
typedef struct OciHook {
char *path;
char **args;
char **env;
usec_t timeout;
} OciHook;
typedef struct Settings {
/* [Exec] */
StartMode start_mode;
int ephemeral;
char **parameters;
char **environment;
char *user;
uint64_t capability;
uint64_t drop_capability;
uint64_t ambient_capability;
int kill_signal;
unsigned long personality;
sd_id128_t machine_id;
char *working_directory;
char *pivot_root_new;
char *pivot_root_old;
UserNamespaceMode userns_mode;
uid_t uid_shift, uid_range;
int notify_ready;
char **syscall_allow_list;
char **syscall_deny_list;
struct rlimit *rlimit[_RLIMIT_MAX];
char *hostname;
int no_new_privileges;
int oom_score_adjust;
bool oom_score_adjust_set;
CPUSet cpu_set;
ResolvConfMode resolv_conf;
LinkJournal link_journal;
bool link_journal_try;
TimezoneMode timezone;
int suppress_sync;
/* [Files] */
int read_only;
VolatileMode volatile_mode;
CustomMount *custom_mounts;
size_t n_custom_mounts;
UserNamespaceOwnership userns_ownership;
char **bind_user;
/* [Network] */
int private_network;
int network_veth;
char *network_bridge;
char *network_zone;
char **network_interfaces;
char **network_macvlan;
char **network_ipvlan;
char **network_veth_extra;
ExposePort *expose_ports;
/* Additional fields, that are specific to OCI runtime case */
char *bundle;
char *root;
OciHook *oci_hooks_prestart, *oci_hooks_poststart, *oci_hooks_poststop;
size_t n_oci_hooks_prestart, n_oci_hooks_poststart, n_oci_hooks_poststop;
char *slice;
sd_bus_message *properties;
CapabilityQuintet full_capabilities;
uid_t uid;
gid_t gid;
gid_t *supplementary_gids;
size_t n_supplementary_gids;
unsigned console_width, console_height;
ConsoleMode console_mode;
DeviceNode *extra_nodes;
size_t n_extra_nodes;
unsigned long clone_ns_flags;
char *network_namespace_path;
int use_cgns;
char **sysctl;
#if HAVE_SECCOMP
scmp_filter_ctx seccomp;
#endif
} Settings;
Settings *settings_new(void);
int settings_load(FILE *f, const char *path, Settings **ret);
Settings* settings_free(Settings *s);
bool settings_network_veth(Settings *s);
bool settings_private_network(Settings *s);
bool settings_network_configured(Settings *s);
int settings_allocate_properties(Settings *s);
DEFINE_TRIVIAL_CLEANUP_FUNC(Settings*, settings_free);
const struct ConfigPerfItem* nspawn_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
CONFIG_PARSER_PROTOTYPE(config_parse_capability);
CONFIG_PARSER_PROTOTYPE(config_parse_expose_port);
CONFIG_PARSER_PROTOTYPE(config_parse_volatile_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_pivot_root);
CONFIG_PARSER_PROTOTYPE(config_parse_bind);
CONFIG_PARSER_PROTOTYPE(config_parse_tmpfs);
CONFIG_PARSER_PROTOTYPE(config_parse_overlay);
CONFIG_PARSER_PROTOTYPE(config_parse_inaccessible);
CONFIG_PARSER_PROTOTYPE(config_parse_veth_extra);
CONFIG_PARSER_PROTOTYPE(config_parse_network_zone);
CONFIG_PARSER_PROTOTYPE(config_parse_boot);
CONFIG_PARSER_PROTOTYPE(config_parse_pid2);
CONFIG_PARSER_PROTOTYPE(config_parse_private_users);
CONFIG_PARSER_PROTOTYPE(config_parse_syscall_filter);
CONFIG_PARSER_PROTOTYPE(config_parse_oom_score_adjust);
CONFIG_PARSER_PROTOTYPE(config_parse_cpu_affinity);
CONFIG_PARSER_PROTOTYPE(config_parse_resolv_conf);
CONFIG_PARSER_PROTOTYPE(config_parse_link_journal);
CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
CONFIG_PARSER_PROTOTYPE(config_parse_userns_chown);
CONFIG_PARSER_PROTOTYPE(config_parse_userns_ownership);
CONFIG_PARSER_PROTOTYPE(config_parse_bind_user);
const char *resolv_conf_mode_to_string(ResolvConfMode a) _const_;
ResolvConfMode resolv_conf_mode_from_string(const char *s) _pure_;
const char *timezone_mode_to_string(TimezoneMode a) _const_;
TimezoneMode timezone_mode_from_string(const char *s) _pure_;
const char *user_namespace_ownership_to_string(UserNamespaceOwnership a) _const_;
UserNamespaceOwnership user_namespace_ownership_from_string(const char *s) _pure_;
int parse_link_journal(const char *s, LinkJournal *ret_mode, bool *ret_try);
void device_node_array_free(DeviceNode *node, size_t n);
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