X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fmanager.h;h=5e65fdb8fc25ea4a82ebc34ce7b8e21e40a14c4a;hp=22ba04f799b3ebe45c027a382a824152b7866e81;hb=ac155bb885f9ea8aac3979a6b2686f0c8a9cc6e3;hpb=1e287fe32fd15b1691cbb966feef5fc2f9f6cf7b diff --git a/src/manager.h b/src/manager.h index 22ba04f79..5e65fdb8f 100644 --- a/src/manager.h +++ b/src/manager.h @@ -1,4 +1,4 @@ -/*-*- Mode: C; c-basic-offset: 8 -*-*/ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #ifndef foomanagerhfoo #define foomanagerhfoo @@ -30,7 +30,7 @@ #include "fdset.h" /* Enforce upper limit how many names we allow */ -#define MANAGER_MAX_NAMES 2048 +#define MANAGER_MAX_NAMES 131072 /* 128K */ typedef struct Manager Manager; typedef enum WatchType WatchType; @@ -41,14 +41,17 @@ typedef enum ManagerExitCode { MANAGER_EXIT, MANAGER_RELOAD, MANAGER_REEXECUTE, + MANAGER_REBOOT, + MANAGER_POWEROFF, + MANAGER_HALT, + MANAGER_KEXEC, _MANAGER_EXIT_CODE_MAX, _MANAGER_EXIT_CODE_INVALID = -1 } ManagerExitCode; typedef enum ManagerRunningAs { - MANAGER_INIT, /* root and pid=1 */ - MANAGER_SYSTEM, /* root and pid!=1 */ - MANAGER_SESSION, /* non-root, for a session */ + MANAGER_SYSTEM, + MANAGER_USER, _MANAGER_RUNNING_AS_MAX, _MANAGER_RUNNING_AS_INVALID = -1 } ManagerRunningAs; @@ -56,9 +59,12 @@ typedef enum ManagerRunningAs { enum WatchType { WATCH_INVALID, WATCH_SIGNAL, + WATCH_NOTIFY, WATCH_FD, - WATCH_TIMER, + WATCH_UNIT_TIMER, + WATCH_JOB_TIMER, WATCH_MOUNT, + WATCH_SWAP, WATCH_UDEV, WATCH_DBUS_WATCH, WATCH_DBUS_TIMEOUT @@ -68,7 +74,8 @@ struct Watch { int fd; WatchType type; union { - union Unit *unit; + struct Unit *unit; + struct Job *job; DBusWatch *bus_watch; DBusTimeout *bus_timeout; } data; @@ -82,57 +89,11 @@ struct Watch { #include "list.h" #include "set.h" #include "dbus.h" - -#define SPECIAL_DEFAULT_TARGET "default.target" - -/* This is not really intended to be started by directly. This is - * mostly so that other targets (reboot/halt/poweroff) can depend on - * it to bring all services down that want to be brought down on - * system shutdown. */ -#define SPECIAL_SHUTDOWN_TARGET "shutdown.target" - -#define SPECIAL_LOGGER_SOCKET "systemd-logger.socket" - -#define SPECIAL_KBREQUEST_TARGET "kbrequest.target" -#define SPECIAL_SIGPWR_TARGET "sigpwr.target" -#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target" - -#define SPECIAL_LOCAL_FS_TARGET "local-fs.target" /* LSB's $local_fs */ -#define SPECIAL_REMOTE_FS_TARGET "remote-fs.target" /* LSB's $remote_fs */ -#define SPECIAL_SWAP_TARGET "swap.target" -#define SPECIAL_NETWORK_TARGET "network.target" /* LSB's $network */ -#define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */ -#define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */ -#define SPECIAL_SYSLOG_TARGET "syslog.target" /* LSB's $syslog; Should pull in syslog.socket or syslog.service */ -#define SPECIAL_RTC_SET_TARGET "rtc-set.target" /* LSB's $time */ -#define SPECIAL_DISPLAY_MANAGER_SERVICE "display-manager.service" /* Debian's $x-display-manager */ -#define SPECIAL_MAIL_TRANSFER_AGENT_TARGET "mail-transfer-agent.target" /* Debian's $mail-{transport|transfer-agent */ -#define SPECIAL_BASIC_TARGET "basic.target" -#define SPECIAL_RESCUE_TARGET "rescue.target" - -#ifndef SPECIAL_DBUS_SERVICE -#define SPECIAL_DBUS_SERVICE "dbus.service" -#endif - -#ifndef SPECIAL_SYSLOG_SERVICE -#define SPECIAL_SYSLOG_SERVICE "syslog.service" -#endif - -/* For SysV compatibility. Usually an alias for a saner target. On - * SysV-free systems this doesn't exist. */ -#define SPECIAL_RUNLEVEL0_TARGET "runlevel0.target" -#define SPECIAL_RUNLEVEL1_TARGET "runlevel1.target" -#define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target" -#define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target" -#define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target" -#define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target" -#define SPECIAL_RUNLEVEL6_TARGET "runlevel6.target" +#include "path-lookup.h" struct Manager { - uint32_t current_job_id; - /* Note that the set of units we know of is allowed to be - * incosistent. However the subset of it that is loaded may + * inconsistent. However the subset of it that is loaded may * not, and the list of jobs may neither. */ /* Active jobs and units */ @@ -141,10 +102,10 @@ struct Manager { /* To make it easy to iterate through the units of a specific * type we maintain a per type linked list */ - LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]); + LIST_HEAD(Unit, units_by_type[_UNIT_TYPE_MAX]); /* Units that need to be loaded */ - LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */ + LIST_HEAD(Unit, load_queue); /* this is actually more a stack than a queue, but uh. */ /* Jobs that need to be run */ LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */ @@ -153,14 +114,14 @@ struct Manager { * D-Bus. When something about a job changes it is added here * if it is not in there yet. This allows easy coalescing of * D-Bus change signals. */ - LIST_HEAD(Meta, dbus_unit_queue); + LIST_HEAD(Unit, dbus_unit_queue); LIST_HEAD(Job, dbus_job_queue); /* Units to remove */ - LIST_HEAD(Meta, cleanup_queue); + LIST_HEAD(Unit, cleanup_queue); /* Units to check when doing GC */ - LIST_HEAD(Meta, gc_queue); + LIST_HEAD(Unit, gc_queue); /* Jobs to be added */ Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */ @@ -168,24 +129,32 @@ struct Manager { Hashmap *watch_pids; /* pid => Unit object n:1 */ + char *notify_socket; + + Watch notify_watch; Watch signal_watch; int epoll_fd; unsigned n_snapshots; - char **unit_path; - char **sysvinit_path; - char **sysvrcnd_path; + LookupPaths lookup_paths; + Set *unit_path_cache; char **environment; + char **default_controllers; - timestamp startup_timestamp; + dual_timestamp initrd_timestamp; + dual_timestamp startup_timestamp; + dual_timestamp finish_timestamp; + + char *generator_unit_path; /* Data specific to the device subsystem */ struct udev* udev; struct udev_monitor* udev_monitor; Watch udev_watch; + Hashmap *devices_by_sysfs; /* Data specific to the mount subsystem */ FILE *proc_self_mountinfo; @@ -193,48 +162,76 @@ struct Manager { /* Data specific to the swap filesystem */ FILE *proc_swaps; + Hashmap *swaps_by_proc_swaps; + bool request_reload; + Watch swap_watch; /* Data specific to the D-Bus subsystem */ DBusConnection *api_bus, *system_bus; - Set *subscribed; + DBusServer *private_bus; + Set *bus_connections, *bus_connections_for_dispatch; + DBusMessage *queued_message; /* This is used during reloading: * before the reload we queue the * reply message here, and * afterwards we send it */ + DBusConnection *queued_message_connection; /* The connection to send the queued message on */ Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */ int32_t name_data_slot; + int32_t conn_data_slot; + int32_t subscribed_data_slot; + + uint32_t current_job_id; /* Data specific to the Automount subsystem */ int dev_autofs_fd; /* Data specific to the cgroup subsystem */ Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */ - char *cgroup_controller; char *cgroup_hierarchy; usec_t gc_queue_timestamp; - int gc_marker; unsigned n_in_gc_queue; + /* Make sure the user cannot accidentally unmount our cgroup + * file system */ + int pin_cgroupfs_fd; + + /* Audit fd */ +#ifdef HAVE_AUDIT + int audit_fd; +#endif + /* Flags */ ManagerRunningAs running_as; - ManagerExitCode exit_code:4; + ManagerExitCode exit_code:5; bool dispatching_load_queue:1; bool dispatching_run_queue:1; bool dispatching_dbus_queue:1; - bool request_api_bus_dispatch:1; - bool request_system_bus_dispatch:1; + bool taint_usr:1; + + bool show_status; + bool confirm_spawn; +#ifdef HAVE_SYSV_COMPAT + bool sysv_console; +#endif + bool mount_auto; + bool swap_auto; + + ExecOutput default_std_output, default_std_error; - bool utmp_reboot_written:1; + /* non-zero if we are reloading or reexecuting, */ + int n_reloading; - bool confirm_spawn:1; + unsigned n_installed_jobs; + unsigned n_failed_jobs; }; -int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **m); +int manager_new(ManagerRunningAs running_as, Manager **m); void manager_free(Manager *m); int manager_enumerate(Manager *m); @@ -247,11 +244,11 @@ Unit *manager_get_unit(Manager *m, const char *name); int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u); int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); -int manager_load_unit_prepare(Manager *m, const char *name, const char *path, Unit **_ret); -int manager_load_unit(Manager *m, const char *name, const char *path, Unit **_ret); +int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); +int manager_load_unit(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret); -int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret); -int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, Job **_ret); +int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, DBusError *e, Job **_ret); +int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, DBusError *e, Job **_ret); void manager_dump_units(Manager *s, FILE *f, const char *prefix); void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); @@ -264,21 +261,39 @@ unsigned manager_dispatch_load_queue(Manager *m); unsigned manager_dispatch_run_queue(Manager *m); unsigned manager_dispatch_dbus_queue(Manager *m); -int manager_loop(Manager *m); +int manager_set_default_controllers(Manager *m, char **controllers); -void manager_write_utmp_reboot(Manager *m); -void manager_write_utmp_runlevel(Manager *m, Unit *t); +int manager_loop(Manager *m); void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner); void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid); -int manager_open_serialization(FILE **_f); +int manager_open_serialization(Manager *m, FILE **_f); int manager_serialize(Manager *m, FILE *f, FDSet *fds); int manager_deserialize(Manager *m, FILE *f, FDSet *fds); int manager_reload(Manager *m); +bool manager_is_booting_or_shutting_down(Manager *m); + +void manager_reset_failed(Manager *m); + +void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success); +void manager_send_unit_plymouth(Manager *m, Unit *u); + +bool manager_unit_pending_inactive(Manager *m, const char *name); + +void manager_check_finished(Manager *m); + +void manager_run_generators(Manager *m); +void manager_undo_generators(Manager *m); + +void manager_recheck_journal(Manager *m); + +void manager_set_show_status(Manager *m, bool b); +bool manager_get_show_status(Manager *m); + const char *manager_running_as_to_string(ManagerRunningAs i); ManagerRunningAs manager_running_as_from_string(const char *s);