+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- 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 <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/socket.h>
-#include <sys/capability.h>
-
-#include "util.h"
-#include "strv.h"
-#include "macro.h"
-#include "def.h"
-#include "missing.h"
-
-#include "sd-event.h"
-#include "sd-bus.h"
-#include "bus-error.h"
-#include "bus-message.h"
-#include "bus-util.h"
-#include "bus-internal.h"
-
-static int name_owner_change_callback(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
- sd_event *e = userdata;
-
- assert(bus);
- assert(m);
- assert(e);
-
- sd_event_exit(e, 0);
- return 1;
-}
-
-int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) {
- _cleanup_free_ char *match = NULL;
- const char *unique;
- int r;
-
- assert(e);
- assert(bus);
- assert(name);
-
- /* We unregister the name here and then wait for the
- * NameOwnerChanged signal for this event to arrive before we
- * quit. We do this in order to make sure that any queued
- * requests are still processed before we really exit. */
-
- r = sd_bus_get_unique_name(bus, &unique);
- if (r < 0)
- return r;
-
- r = asprintf(&match,
- "sender='org.freedesktop.DBus',"
- "type='signal',"
- "interface='org.freedesktop.DBus',"
- "member='NameOwnerChanged',"
- "path='/org/freedesktop/DBus',"
- "arg0='%s',"
- "arg1='%s',"
- "arg2=''", name, unique);
- if (r < 0)
- return -ENOMEM;
-
- r = sd_bus_add_match(bus, match, name_owner_change_callback, e);
- if (r < 0)
- return r;
-
- r = sd_bus_release_name(bus, name);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-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) {
- bool exiting = false;
- int r, code;
-
- assert(e);
- assert(bus);
- assert(name);
-
- for (;;) {
- bool idle;
-
- r = sd_event_get_state(e);
- if (r < 0)
- return r;
- if (r == SD_EVENT_FINISHED)
- break;
-
- if (check_idle)
- idle = check_idle(userdata);
- else
- idle = true;
-
- r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout);
- if (r < 0)
- return r;
-
- if (r == 0 && !exiting) {
- r = bus_async_unregister_and_exit(e, bus, name);
- if (r < 0)
- return r;
-
- exiting = true;
- }
- }
-
- r = sd_event_get_exit_code(e, &code);
- if (r < 0)
- return r;
-
- return code;
-}
-
-int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) {
- _cleanup_bus_message_unref_ sd_bus_message *rep = NULL;
- int r, has_owner = 0;
-
- assert(c);
- assert(name);
-
- r = sd_bus_call_method(c,
- "org.freedesktop.DBus",
- "/org/freedesktop/dbus",
- "org.freedesktop.DBus",
- "NameHasOwner",
- error,
- &rep,
- "s",
- name);
- if (r < 0)
- return r;
-
- r = sd_bus_message_read_basic(rep, 'b', &has_owner);
- if (r < 0)
- return sd_bus_error_set_errno(error, r);
-
- return has_owner;
-}
-
-int bus_verify_polkit(
- sd_bus *bus,
- sd_bus_message *m,
- const char *action,
- bool interactive,
- bool *_challenge,
- sd_bus_error *e) {
-
- _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
- uid_t uid;
- int r;
-
- assert(bus);
- assert(m);
- assert(action);
-
- r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_UID, &creds);
- if (r < 0)
- return r;
-
- r = sd_bus_creds_get_uid(creds, &uid);
- if (r < 0)
- return r;
-
- if (uid == 0)
- return 1;
-
-#ifdef ENABLE_POLKIT
- else {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- int authorized = false, challenge = false;
- const char *sender;
-
- sender = sd_bus_message_get_sender(m);
- if (!sender)
- return -EBADMSG;
-
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.PolicyKit1",
- "/org/freedesktop/PolicyKit1/Authority",
- "org.freedesktop.PolicyKit1.Authority",
- "CheckAuthorization",
- e,
- &reply,
- "(sa{sv})sa{ss}us",
- "system-bus-name", 1, "name", "s", sender,
- action,
- 0,
- interactive ? 1 : 0,
- "");
-
- if (r < 0) {
- /* Treat no PK available as access denied */
- if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) {
- sd_bus_error_free(e);
- return -EACCES;
- }
-
- return r;
- }
-
- r = sd_bus_message_enter_container(reply, 'r', "bba{ss}");
- if (r < 0)
- return r;
-
- r = sd_bus_message_read(reply, "bb", &authorized, &challenge);
- if (r < 0)
- return r;
-
- if (authorized)
- return 1;
-
- if (_challenge) {
- *_challenge = challenge;
- return 0;
- }
- }
-#endif
-
- return -EACCES;
-}
-
-#ifdef ENABLE_POLKIT
-
-typedef struct AsyncPolkitQuery {
- sd_bus_message *request, *reply;
- sd_bus_message_handler_t callback;
- void *userdata;
- uint64_t serial;
- Hashmap *registry;
-} AsyncPolkitQuery;
-
-static void async_polkit_query_free(sd_bus *b, AsyncPolkitQuery *q) {
-
- if (!q)
- return;
-
- if (q->serial > 0 && b)
- sd_bus_call_async_cancel(b, q->serial);
-
- if (q->registry && q->request)
- hashmap_remove(q->registry, q->request);
-
- sd_bus_message_unref(q->request);
- sd_bus_message_unref(q->reply);
-
- free(q);
-}
-
-static int async_polkit_callback(sd_bus *bus, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
- _cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL;
- AsyncPolkitQuery *q = userdata;
- int r;
-
- assert(bus);
- assert(reply);
- assert(q);
-
- q->reply = sd_bus_message_ref(reply);
- q->serial = 0;
-
- r = sd_bus_message_rewind(q->request, true);
- if (r < 0) {
- r = sd_bus_reply_method_errno(q->request, r, NULL);
- goto finish;
- }
-
- r = q->callback(bus, q->request, q->userdata, &error_buffer);
- r = bus_maybe_reply_error(q->request, r, &error_buffer);
-
-finish:
- async_polkit_query_free(bus, q);
- return r;
-}
-
-#endif
-
-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) {
-
-#ifdef ENABLE_POLKIT
- _cleanup_bus_message_unref_ sd_bus_message *pk = NULL;
- AsyncPolkitQuery *q;
- const char *sender;
-#endif
- _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
- uid_t uid;
- int r;
-
- assert(bus);
- assert(registry);
- assert(m);
- assert(action);
-
-#ifdef ENABLE_POLKIT
- q = hashmap_get(*registry, m);
- if (q) {
- int authorized, challenge;
-
- /* This is the second invocation of this function, and
- * there's already a response from polkit, let's
- * process it */
- assert(q->reply);
-
- if (sd_bus_message_is_method_error(q->reply, NULL)) {
- const sd_bus_error *e;
-
- /* Copy error from polkit reply */
- e = sd_bus_message_get_error(q->reply);
- sd_bus_error_copy(error, e);
-
- /* Treat no PK available as access denied */
- if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN))
- return -EACCES;
-
- return -sd_bus_error_get_errno(e);
- }
-
- r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}");
- if (r >= 0)
- r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge);
-
- if (r < 0)
- return r;
-
- if (authorized)
- return 1;
-
- return -EACCES;
- }
-#endif
-
- r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_UID, &creds);
- if (r < 0)
- return r;
-
- r = sd_bus_creds_get_uid(creds, &uid);
- if (r < 0)
- return r;
-
- if (uid == 0)
- return 1;
-
-#ifdef ENABLE_POLKIT
- sender = sd_bus_message_get_sender(m);
- if (!sender)
- return -EBADMSG;
-
- r = hashmap_ensure_allocated(registry, trivial_hash_func, trivial_compare_func);
- if (r < 0)
- return r;
-
- r = sd_bus_message_new_method_call(
- bus,
- "org.freedesktop.PolicyKit1",
- "/org/freedesktop/PolicyKit1/Authority",
- "org.freedesktop.PolicyKit1.Authority",
- "CheckAuthorization",
- &pk);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(
- pk,
- "(sa{sv})sa{ss}us",
- "system-bus-name", 1, "name", "s", sender,
- action,
- 0,
- interactive ? 1 : 0,
- NULL);
- if (r < 0)
- return r;
-
- q = new0(AsyncPolkitQuery, 1);
- if (!q)
- return -ENOMEM;
-
- q->request = sd_bus_message_ref(m);
- q->callback = callback;
- q->userdata = userdata;
-
- r = hashmap_put(*registry, m, q);
- if (r < 0) {
- async_polkit_query_free(bus, q);
- return r;
- }
-
- q->registry = *registry;
-
- r = sd_bus_call_async(bus, pk, async_polkit_callback, q, 0, &q->serial);
- if (r < 0) {
- async_polkit_query_free(bus, q);
- return r;
- }
-
- return 0;
-#endif
-
- return -EACCES;
-}
-
-void bus_verify_polkit_async_registry_free(sd_bus *bus, Hashmap *registry) {
-#ifdef ENABLE_POLKIT
- AsyncPolkitQuery *q;
-
- while ((q = hashmap_steal_first(registry)))
- async_polkit_query_free(bus, q);
-
- hashmap_free(registry);
-#endif
-}
-
-int bus_check_peercred(sd_bus *c) {
- struct ucred ucred;
- socklen_t l;
- int fd;
-
- assert(c);
-
- fd = sd_bus_get_fd(c);
- if (fd < 0)
- return fd;
-
- l = sizeof(struct ucred);
- if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0)
- return -errno;
-
- if (l != sizeof(struct ucred))
- return -E2BIG;
-
- if (ucred.uid != 0 && ucred.uid != geteuid())
- return -EPERM;
-
- return 1;
-}
-
-int bus_open_system_systemd(sd_bus **_bus) {
- _cleanup_bus_unref_ sd_bus *bus = NULL;
- int r;
-
- assert(_bus);
-
- if (geteuid() != 0)
- return sd_bus_open_system(_bus);
-
- /* If we are root and kdbus is not available, then let's talk
- * directly to the system instance, instead of going via the
- * bus */
-
-#ifdef ENABLE_KDBUS
- r = sd_bus_new(&bus);
- if (r < 0)
- return r;
-
- r = sd_bus_set_address(bus, KERNEL_SYSTEM_BUS_PATH);
- if (r < 0)
- return r;
-
- bus->bus_client = true;
-
- r = sd_bus_start(bus);
- if (r >= 0) {
- *_bus = bus;
- bus = NULL;
- return 0;
- }
-
- bus = sd_bus_unref(bus);
-#endif
-
- r = sd_bus_new(&bus);
- if (r < 0)
- return r;
-
- r = sd_bus_set_address(bus, "unix:path=/run/systemd/private");
- if (r < 0)
- return r;
-
- r = sd_bus_start(bus);
- if (r < 0)
- return sd_bus_open_system(_bus);
-
- r = bus_check_peercred(bus);
- if (r < 0)
- return r;
-
- *_bus = bus;
- bus = NULL;
-
- return 0;
-}
-
-int bus_open_user_systemd(sd_bus **_bus) {
- _cleanup_bus_unref_ sd_bus *bus = NULL;
- _cleanup_free_ char *ee = NULL;
- const char *e;
- int r;
-
- /* Try via kdbus first, and then directly */
-
- assert(_bus);
-
-#ifdef ENABLE_KDBUS
- r = sd_bus_new(&bus);
- if (r < 0)
- return r;
-
- if (asprintf(&bus->address, KERNEL_USER_BUS_FMT, (unsigned long) getuid()) < 0)
- return -ENOMEM;
-
- bus->bus_client = true;
-
- r = sd_bus_start(bus);
- if (r >= 0) {
- *_bus = bus;
- bus = NULL;
- return 0;
- }
-
- bus = sd_bus_unref(bus);
-#endif
-
- e = secure_getenv("XDG_RUNTIME_DIR");
- if (!e)
- return sd_bus_open_user(_bus);
-
- ee = bus_address_escape(e);
- if (!ee)
- return -ENOMEM;
-
- r = sd_bus_new(&bus);
- if (r < 0)
- return r;
-
- bus->address = strjoin("unix:path=", ee, "/systemd/private", NULL);
- if (!bus->address)
- return -ENOMEM;
-
- r = sd_bus_start(bus);
- if (r < 0)
- return sd_bus_open_user(_bus);
-
- r = bus_check_peercred(bus);
- if (r < 0)
- return r;
-
- *_bus = bus;
- bus = NULL;
-
- return 0;
-}
-
-int bus_print_property(const char *name, sd_bus_message *property, bool all) {
- char type;
- const char *contents;
- int r;
-
- assert(name);
- assert(property);
-
- r = sd_bus_message_peek_type(property, &type, &contents);
- if (r < 0)
- return r;
-
- switch (type) {
-
- case SD_BUS_TYPE_STRING: {
- const char *s;
-
- r = sd_bus_message_read_basic(property, type, &s);
- if (r < 0)
- return r;
-
- if (all || !isempty(s))
- printf("%s=%s\n", name, s);
-
- return 1;
- }
-
- case SD_BUS_TYPE_BOOLEAN: {
- bool b;
-
- r = sd_bus_message_read_basic(property, type, &b);
- if (r < 0)
- return r;
-
- printf("%s=%s\n", name, yes_no(b));
-
- return 1;
- }
-
- case SD_BUS_TYPE_UINT64: {
- uint64_t u;
-
- r = sd_bus_message_read_basic(property, type, &u);
- if (r < 0)
- return r;
-
- /* Yes, heuristics! But we can change this check
- * should it turn out to not be sufficient */
-
- if (endswith(name, "Timestamp")) {
- char timestamp[FORMAT_TIMESTAMP_MAX], *t;
-
- t = format_timestamp(timestamp, sizeof(timestamp), u);
- if (t || all)
- printf("%s=%s\n", name, strempty(t));
-
- } else if (strstr(name, "USec")) {
- char timespan[FORMAT_TIMESPAN_MAX];
-
- printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u, 0));
- } else
- printf("%s=%llu\n", name, (unsigned long long) u);
-
- return 1;
- }
-
- case SD_BUS_TYPE_UINT32: {
- uint32_t u;
-
- r = sd_bus_message_read_basic(property, type, &u);
- if (r < 0)
- return r;
-
- if (strstr(name, "UMask") || strstr(name, "Mode"))
- printf("%s=%04o\n", name, u);
- else
- printf("%s=%u\n", name, (unsigned) u);
-
- return 1;
- }
-
- case SD_BUS_TYPE_INT32: {
- int32_t i;
-
- r = sd_bus_message_read_basic(property, type, &i);
- if (r < 0)
- return r;
-
- printf("%s=%i\n", name, (int) i);
- return 1;
- }
-
- case SD_BUS_TYPE_DOUBLE: {
- double d;
-
- r = sd_bus_message_read_basic(property, type, &d);
- if (r < 0)
- return r;
-
- printf("%s=%g\n", name, d);
- return 1;
- }
-
- case SD_BUS_TYPE_ARRAY:
- if (streq(contents, "s")) {
- bool first = true;
- const char *str;
-
- r = sd_bus_message_enter_container(property, SD_BUS_TYPE_ARRAY, contents);
- if (r < 0)
- return r;
-
- while((r = sd_bus_message_read_basic(property, SD_BUS_TYPE_STRING, &str)) > 0) {
- if (first)
- printf("%s=", name);
-
- printf("%s%s", first ? "" : " ", str);
-
- first = false;
- }
- if (r < 0)
- return r;
-
- if (first && all)
- printf("%s=", name);
- if (!first || all)
- puts("");
-
- r = sd_bus_message_exit_container(property);
- if (r < 0)
- return r;
-
- return 1;
-
- } else if (streq(contents, "y")) {
- const uint8_t *u;
- size_t n;
-
- r = sd_bus_message_read_array(property, SD_BUS_TYPE_BYTE, (const void**) &u, &n);
- if (r < 0)
- return r;
-
- if (all || n > 0) {
- unsigned int i;
-
- printf("%s=", name);
-
- for (i = 0; i < n; i++)
- printf("%02x", u[i]);
-
- puts("");
- }
-
- return 1;
-
- } else if (streq(contents, "u")) {
- uint32_t *u;
- size_t n;
-
- r = sd_bus_message_read_array(property, SD_BUS_TYPE_UINT32, (const void**) &u, &n);
- if (r < 0)
- return r;
-
- if (all || n > 0) {
- unsigned int i;
-
- printf("%s=", name);
-
- for (i = 0; i < n; i++)
- printf("%08x", u[i]);
-
- puts("");
- }
-
- return 1;
- }
-
- break;
- }
-
- return 0;
-}
-
-int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all) {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- assert(bus);
- assert(path);
-
- r = sd_bus_call_method(bus,
- dest,
- path,
- "org.freedesktop.DBus.Properties",
- "GetAll",
- &error,
- &reply,
- "s", "");
- if (r < 0)
- return r;
-
- r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
- if (r < 0)
- return r;
-
- while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
- const char *name;
- const char *contents;
-
- r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &name);
- if (r < 0)
- return r;
-
- if (!filter || strv_find(filter, name)) {
- r = sd_bus_message_peek_type(reply, NULL, &contents);
- if (r < 0)
- return r;
-
- r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
- if (r < 0)
- return r;
-
- r = bus_print_property(name, reply, all);
- if (r < 0)
- return r;
- if (r == 0) {
- if (all)
- printf("%s=[unprintable]\n", name);
- /* skip what we didn't read */
- r = sd_bus_message_skip(reply, contents);
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return r;
- } else {
- r = sd_bus_message_skip(reply, "v");
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return r;
- }
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- sd_id128_t *p = userdata;
- const void *v;
- size_t n;
- int r;
-
- r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n);
- if (r < 0)
- return r;
-
- if (n == 0)
- *p = SD_ID128_NULL;
- else if (n == 16)
- memcpy((*p).bytes, v, n);
- else
- return -EINVAL;
-
- return 0;
-}
-
-static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
- char type;
- int r;
-
- r = sd_bus_message_peek_type(m, &type, NULL);
- if (r < 0)
- return r;
-
- switch (type) {
- case SD_BUS_TYPE_STRING: {
- const char *s;
- char *str;
- char **p = userdata;
-
- r = sd_bus_message_read_basic(m, type, &s);
- if (r < 0)
- break;
-
- if (isempty(s))
- break;
-
- str = strdup(s);
- if (!str) {
- r = -ENOMEM;
- break;
- }
- free(*p);
- *p = str;
-
- break;
- }
-
- case SD_BUS_TYPE_ARRAY: {
- _cleanup_strv_free_ char **l = NULL;
- char ***p = userdata;
-
- r = bus_message_read_strv_extend(m, &l);
- if (r < 0)
- break;
-
- strv_free(*p);
- *p = l;
- l = NULL;
-
- break;
- }
-
- case SD_BUS_TYPE_BOOLEAN: {
- unsigned b;
- bool *p = userdata;
-
- r = sd_bus_message_read_basic(m, type, &b);
- if (r < 0)
- break;
-
- *p = b;
-
- break;
- }
-
- case SD_BUS_TYPE_UINT32: {
- uint64_t u;
- uint32_t *p = userdata;
-
- r = sd_bus_message_read_basic(m, type, &u);
- if (r < 0)
- break;
-
- *p = u;
-
- break;
- }
-
- case SD_BUS_TYPE_UINT64: {
- uint64_t t;
- uint64_t *p = userdata;
-
- r = sd_bus_message_read_basic(m, type, &t);
- if (r < 0)
- break;
-
- *p = t;
-
- break;
- }
-
- default:
- break;
- }
-
- return r;
-}
-
-int bus_map_all_properties(sd_bus *bus,
- const char *destination,
- const char *path,
- const struct bus_properties_map *map,
- void *userdata) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- assert(bus);
- assert(destination);
- assert(path);
- assert(map);
-
- r = sd_bus_call_method(
- bus,
- destination,
- path,
- "org.freedesktop.DBus.Properties",
- "GetAll",
- &error,
- &m,
- "s", "");
- if (r < 0)
- return r;
-
- r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}");
- if (r < 0)
- return r;
-
- while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
- const struct bus_properties_map *prop;
- const char *member;
- const char *contents;
- void *v;
- unsigned i;
-
- r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member);
- if (r < 0)
- return r;
-
- for (i = 0, prop = NULL; map[i].member; i++)
- if (streq(map[i].member, member)) {
- prop = &map[i];
- break;
- }
-
- if (prop) {
- r = sd_bus_message_peek_type(m, NULL, &contents);
- if (r < 0)
- return r;
-
- r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents);
- if (r < 0)
- return r;
-
- v = (uint8_t *)userdata + prop->offset;
- if (map[i].set)
- r = prop->set(bus, member, m, &error, v);
- else
- r = map_basic(bus, member, m, &error, v);
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
- } else {
- r = sd_bus_message_skip(m, "v");
- if (r < 0)
- return r;
- }
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
- }
-
- return r;
-}
-
-int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus) {
- int r;
-
- assert(transport >= 0);
- assert(transport < _BUS_TRANSPORT_MAX);
- assert(bus);
-
- assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL);
- assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -ENOTSUP);
-
- switch (transport) {
-
- case BUS_TRANSPORT_LOCAL:
- if (user)
- r = sd_bus_default_user(bus);
- else
- r = sd_bus_default_system(bus);
-
- break;
-
- case BUS_TRANSPORT_REMOTE:
- r = sd_bus_open_system_remote(host, bus);
- break;
-
- case BUS_TRANSPORT_CONTAINER:
- r = sd_bus_open_system_container(host, bus);
- break;
-
- default:
- assert_not_reached("Hmm, unknown transport type.");
- }
-
- return r;
-}
-
-int bus_open_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) {
- int r;
-
- assert(transport >= 0);
- assert(transport < _BUS_TRANSPORT_MAX);
- assert(bus);
-
- assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL);
- assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -ENOTSUP);
-
- switch (transport) {
-
- case BUS_TRANSPORT_LOCAL:
- if (user)
- r = bus_open_user_systemd(bus);
- else
- r = bus_open_system_systemd(bus);
-
- break;
-
- case BUS_TRANSPORT_REMOTE:
- r = sd_bus_open_system_remote(host, bus);
- break;
-
- case BUS_TRANSPORT_CONTAINER:
- r = sd_bus_open_system_container(host, bus);
- break;
-
- default:
- assert_not_reached("Hmm, unknown transport type.");
- }
-
- return r;
-}
-
-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) {
-
- int *tristate = userdata;
-
- return sd_bus_message_append(reply, "b", *tristate > 0);
-}
-
-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 b = *(bool*) userdata;
-
- return sd_bus_message_append_basic(reply, 'b', &b);
-}
-
-#if __SIZEOF_SIZE_T__ != 8
-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) {
-
- uint64_t sz = *(size_t*) userdata;
-
- return sd_bus_message_append_basic(reply, 't', &sz);
-}
-#endif
-
-#if __SIZEOF_LONG__ != 8
-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) {
-
- int64_t l = *(long*) userdata;
-
- return sd_bus_message_append_basic(reply, 'x', &l);
-}
-
-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) {
-
- uint64_t ul = *(unsigned long*) userdata;
-
- return sd_bus_message_append_basic(reply, 't', &ul);
-}
-#endif
-
-int bus_log_parse_error(int r) {
- log_error("Failed to parse message: %s", strerror(-r));
- return r;
-}
-
-int bus_log_create_error(int r) {
- log_error("Failed to create message: %s", strerror(-r));
- return r;
-}
-
-int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) {
- assert(message);
- assert(u);
-
- return sd_bus_message_read(
- message,
- "(ssssssouso)",
- &u->id,
- &u->description,
- &u->load_state,
- &u->active_state,
- &u->sub_state,
- &u->following,
- &u->unit_path,
- &u->job_id,
- &u->job_type,
- &u->job_path);
-}
-
-int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error) {
- assert(m);
-
- if (r < 0) {
- if (m->header->type == SD_BUS_MESSAGE_METHOD_CALL)
- sd_bus_reply_method_errno(m, r, error);
-
- } else if (sd_bus_error_is_set(error)) {
- if (m->header->type == SD_BUS_MESSAGE_METHOD_CALL)
- sd_bus_reply_method_error(m, error);
- } else
- return r;
-
- log_debug("Failed to process message [type=%s sender=%s path=%s interface=%s member=%s signature=%s]: %s",
- bus_message_type_to_string(m->header->type),
- strna(m->sender),
- strna(m->path),
- strna(m->interface),
- strna(m->member),
- strna(m->root_container.signature),
- bus_error_message(error, r));
-
- return 1;
-}
~ianmdlvl / elogind.git / blobdiff