/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #pragma once /*** This file is part of systemd. Copyright 2013 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ #include "sd-event.h" #include "sd-bus.h" #include "hashmap.h" #include "time-util.h" #include "util.h" typedef enum BusTransport { BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_CONTAINER, _BUS_TRANSPORT_MAX, _BUS_TRANSPORT_INVALID = -1 } BusTransport; typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); struct bus_properties_map { const char *member; const char *signature; bus_property_set_t set; size_t offset; }; int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map, void *userdata); int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name); typedef bool (*check_idle_t)(void *userdata); int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout, check_idle_t check_idle, void *userdata); int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error); int bus_check_peercred(sd_bus *c); int bus_verify_polkit(sd_bus *bus, sd_bus_message *m, const char *action, bool interactive, bool *_challenge, sd_bus_error *e); int bus_verify_polkit_async(sd_bus *bus, Hashmap **registry, sd_bus_message *m, const char *action, bool interactive, sd_bus_error *error, sd_bus_message_handler_t callback, void *userdata); void bus_verify_polkit_async_registry_free(Hashmap *registry); int bus_open_system_systemd(sd_bus **_bus); int bus_open_user_systemd(sd_bus **_bus); int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus); int bus_open_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus); int bus_print_property(const char *name, sd_bus_message *property, bool all); int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all); int bus_property_get_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); #define bus_property_get_usec ((sd_bus_property_get_t) NULL) #define bus_property_set_usec ((sd_bus_property_set_t) NULL) assert_cc(sizeof(int) == sizeof(int32_t)); #define bus_property_get_int ((sd_bus_property_get_t) NULL) assert_cc(sizeof(unsigned) == sizeof(unsigned)); #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL) /* On 64bit machines we can use the default serializer for size_t and * friends, otherwise we need to cast this manually */ #if __SIZEOF_SIZE_T__ == 8 #define bus_property_get_size ((sd_bus_property_get_t) NULL) #else int bus_property_get_size(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); #endif #if __SIZEOF_LONG__ == 8 #define bus_property_get_long ((sd_bus_property_get_t) NULL) #define bus_property_get_ulong ((sd_bus_property_get_t) NULL) #else int bus_property_get_long(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); int bus_property_get_ulong(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); #endif /* uid_t and friends on Linux 32 bit. This means we can just use the * default serializer for 32bit unsigned, for serializing it, and map * it to NULL here */ assert_cc(sizeof(uid_t) == sizeof(uint32_t)); #define bus_property_get_uid ((sd_bus_property_get_t) NULL) assert_cc(sizeof(gid_t) == sizeof(uint32_t)); #define bus_property_get_gid ((sd_bus_property_get_t) NULL) assert_cc(sizeof(pid_t) == sizeof(uint32_t)); #define bus_property_get_pid ((sd_bus_property_get_t) NULL) assert_cc(sizeof(mode_t) == sizeof(uint32_t)); #define bus_property_get_mode ((sd_bus_property_get_t) NULL) int bus_log_parse_error(int r); int bus_log_create_error(int r); typedef struct UnitInfo { const char *machine; const char *id; const char *description; const char *load_state; const char *active_state; const char *sub_state; const char *following; const char *unit_path; uint32_t job_id; const char *job_type; const char *job_path; } UnitInfo; int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u); static inline void sd_bus_close_unrefp(sd_bus **bus) { if (*bus) { sd_bus_flush(*bus); sd_bus_close(*bus); sd_bus_unref(*bus); } } DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus*, sd_bus_unref); DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_slot*, sd_bus_slot_unref); DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message*, sd_bus_message_unref); DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_creds*, sd_bus_creds_unref); DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_track*, sd_bus_track_unref); #define _cleanup_bus_unref_ _cleanup_(sd_bus_unrefp) #define _cleanup_bus_close_unref_ _cleanup_(sd_bus_close_unrefp) #define _cleanup_bus_slot_unref_ _cleanup_(sd_bus_slot_unrefp) #define _cleanup_bus_message_unref_ _cleanup_(sd_bus_message_unrefp) #define _cleanup_bus_creds_unref_ _cleanup_(sd_bus_creds_unrefp) #define _cleanup_bus_track_unref_ _cleanup_(sd_bus_slot_unrefp) #define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free) #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \ int function(sd_bus *bus, \ const char *path, \ const char *interface, \ const char *property, \ sd_bus_message *reply, \ void *userdata, \ sd_bus_error *error) { \ \ const char *value; \ type *field = userdata; \ int r; \ \ assert(bus); \ assert(reply); \ assert(field); \ \ value = strempty(name##_to_string(*field)); \ \ r = sd_bus_message_append_basic(reply, 's', value); \ if (r < 0) \ return r; \ \ return 1; \ } \ struct __useless_struct_to_allow_trailing_semicolon__ #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \ SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \ SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags)) int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error); int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment);