/* SPDX-License-Identifier: LGPL-2.1+ */ #pragma once /*** This file is part of systemd. Copyright 2013 Lennart Poettering ***/ #include #include #include #include #include "sd-bus.h" #include "sd-event.h" #include "hashmap.h" #include "macro.h" #include "string-util.h" typedef enum BusTransport { BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE, _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; }; enum { BUS_MAP_STRDUP = 1U << 0, /* If set, each "s" message is duplicated. Thus, each pointer needs to be freed. */ BUS_MAP_BOOLEAN_AS_BOOL = 1U << 1, /* If set, each "b" message is written to a bool pointer. If not set, "b" is written to a int pointer. */ }; int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, unsigned flags, sd_bus_error *error, void *userdata); int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, unsigned flags, 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, unsigned flags, sd_bus_error *error, sd_bus_message **reply, 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_test_polkit(sd_bus_message *call, int capability, const char *action, const char **details, uid_t good_user, bool *_challenge, sd_bus_error *e); int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, const char **details, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error); void bus_verify_polkit_async_registry_free(Hashmap *registry); int bus_connect_system_systemd(sd_bus **_bus); int bus_connect_user_systemd(sd_bus **_bus); int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus); int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus); typedef int (*bus_message_print_t) (const char *name, sd_bus_message *m, bool value, bool all); int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all); int bus_message_print_all_properties(sd_bus_message *m, bus_message_print_t func, char **filter, bool value, bool all, Set **found_properties); int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, bus_message_print_t func, char **filter, bool value, bool all, Set **found_properties); 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); int bus_property_set_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error); int bus_property_get_id128(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(uint32_t)); #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); #define BUS_DEFINE_PROPERTY_GET_GLOBAL(function, bus_type, val) \ int function(sd_bus *bus, \ const char *path, \ const char *interface, \ const char *property, \ sd_bus_message *reply, \ void *userdata, \ sd_bus_error *error) { \ \ assert(bus); \ assert(reply); \ \ return sd_bus_message_append(reply, bus_type, val); \ } #define BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, get1, get2) \ int function(sd_bus *bus, \ const char *path, \ const char *interface, \ const char *property, \ sd_bus_message *reply, \ void *userdata, \ sd_bus_error *error) { \ \ data_type *data = userdata; \ \ assert(bus); \ assert(reply); \ assert(data); \ \ return sd_bus_message_append(reply, bus_type, \ get2(get1(data))); \ } #define ident(x) (x) #define BUS_DEFINE_PROPERTY_GET(function, bus_type, data_type, get1) \ BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, get1, ident) #define ref(x) (*(x)) #define BUS_DEFINE_PROPERTY_GET_REF(function, bus_type, data_type, get) \ BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, ref, get) #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \ BUS_DEFINE_PROPERTY_GET_REF(function, "s", type, name##_to_string) #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_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path); int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external); int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); int bus_track_add_name_many(sd_bus_track *t, char **l); int bus_open_system_watch_bind_with_description(sd_bus **ret, const char *description); static inline int bus_open_system_watch_bind(sd_bus **ret) { return bus_open_system_watch_bind_with_description(ret, NULL); }