Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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..8edf8a3
--- /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>
+
+#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 "seccomp-util.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_iface_pair);
+CONFIG_PARSER_PROTOTYPE(config_parse_macvlan_iface_pair);
+CONFIG_PARSER_PROTOTYPE(config_parse_ipvlan_iface_pair);
+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);