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-rw-r--r--src/nspawn/nspawn-settings.h287
1 files changed, 287 insertions, 0 deletions
diff --git a/src/nspawn/nspawn-settings.h b/src/nspawn/nspawn-settings.h
new file mode 100644
index 0000000..004b663
--- /dev/null
+++ b/src/nspawn/nspawn-settings.h
@@ -0,0 +1,287 @@
+/* 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);