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