1ecb46724c
Previously, we'd already have explicit logging for the case where $XDG_RUNTIME_DIR is not set. Let's also add some explicit logging for the EPERM/ACCESS case. Let's also in both cases suggest the --machine=<user>@.host syntax. And while we are at it, let's remove side-effects from the macro. By checking for both the EPERM/EACCES case and the $XDG_RUNTIME_DIR case we will now catch both the cases where people use "su" to issue a "systemctl --user" operation, and those where they (more correctly, but still not good enough) call "su -". Fixes: #17901
78 lines
3.4 KiB
C
78 lines
3.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include "sd-bus.h"
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#include "sd-event.h"
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#include "errno-util.h"
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#include "macro.h"
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#include "string-util.h"
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#include "time-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_MACHINE,
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_BUS_TRANSPORT_MAX,
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_BUS_TRANSPORT_INVALID = -1
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} BusTransport;
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int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name);
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typedef bool (*check_idle_t)(void *userdata);
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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);
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int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
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bool bus_error_is_unknown_service(const sd_bus_error *error);
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int bus_check_peercred(sd_bus *c);
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int bus_connect_system_systemd(sd_bus **_bus);
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int bus_connect_user_systemd(sd_bus **_bus);
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int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
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int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus);
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#define bus_log_address_error(r) \
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({ \
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int _k = (r); \
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log_error_errno(_k, \
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_k == -ENOMEDIUM ? "Failed to set bus address: $DBUS_SESSION_BUS_ADDRESS and $XDG_RUNTIME_DIR not defined (consider using --machine=<user>@.host --user to connect to bus of other user)" : \
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"Failed to set bus address: %m"); \
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})
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#define bus_log_connect_error(r) \
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({ \
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int _k = (r); \
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log_error_errno(_k, \
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_k == -ENOMEDIUM ? "Failed to connect to bus: $DBUS_SESSION_BUS_ADDRESS and $XDG_RUNTIME_DIR not defined (consider using --machine=<user>@.host --user to connect to bus of other user)" : \
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ERRNO_IS_PRIVILEGE(_k) ? "Failed to connect to bus: Operation not permitted (consider using --machine=<user>@.host --user to connect to bus of other user)" : \
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"Failed to connect to bus: %m"); \
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})
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#define bus_log_parse_error(r) \
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log_error_errno(r, "Failed to parse bus message: %m")
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#define bus_log_create_error(r) \
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log_error_errno(r, "Failed to create bus message: %m")
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int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path);
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int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external);
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int bus_track_add_name_many(sd_bus_track *t, char **l);
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int bus_open_system_watch_bind_with_description(sd_bus **ret, const char *description);
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static inline int bus_open_system_watch_bind(sd_bus **ret) {
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return bus_open_system_watch_bind_with_description(ret, NULL);
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}
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int bus_reply_pair_array(sd_bus_message *m, char **l);
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extern const struct hash_ops bus_message_hash_ops;
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