/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
Copyright 2013 Daniel Mack
Copyright 2014 Kay Sievers
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 <errno.h>
#include <stddef.h>
#include <string.h>
#include "sd-bus.h"
#include "alloc-util.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-util.h"
#include "driver.h"
#include "env-util.h"
#include "proxy.h"
#include "set.h"
#include "strv.h"
#include "synthesize.h"
#include "util.h"
static int get_creds_by_name(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *c = NULL;
int r;
assert(bus);
assert(name);
assert(_creds);
r = sd_bus_get_name_creds(bus, name, mask, &c);
if (r == -ESRCH || r == -ENXIO)
return sd_bus_error_setf(error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Name %s is currently not owned by anyone.", name);
if (r < 0)
return r;
*_creds = c;
c = NULL;
return 0;
}
static int get_creds_by_message(sd_bus *bus, sd_bus_message *m, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
const char *name;
int r;
assert(bus);
assert(m);
assert(_creds);
r = sd_bus_message_read(m, "s", &name);
if (r < 0)
return r;
return get_creds_by_name(bus, name, mask, _creds, error);
}
static int driver_activation(sd_bus_message *reply, void *userdata, sd_bus_error *error) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
ProxyActivation *activation = userdata;
/*
* The org.freedesktop.DBus.Peer.Ping() call returned. We don't care
* whether this succeeded, failed, was not implemented or timed out. We
* cannot assume that the target reacts to this properly. Hence, just
* send the reply to the activation request and be done.
*/
m = activation->request; /* claim reference */
--activation->proxy->n_activations;
LIST_REMOVE(activations_by_proxy, activation->proxy->activations, activation);
sd_bus_slot_unref(activation->slot);
free(activation);
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
}
int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m, SharedPolicy *sp, const struct ucred *ucred, Set *owned_names) {
int r;
assert(a);
assert(b);
assert(m);
if (!a->is_kernel)
return 0;
if (!streq_ptr(sd_bus_message_get_destination(m), "org.freedesktop.DBus"))
return 0;
/* The "Hello()" call is is handled in process_hello() */
if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
if (!sd_bus_message_has_signature(m, ""))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
return synthetic_reply_method_return(m, "s",
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\" "
"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
"<node>\n"
" <interface name=\"org.freedesktop.DBus.Introspectable\">\n"
" <method name=\"Introspect\">\n"
" <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"
" </method>\n"
" </interface>\n"
" <interface name=\"org.freedesktop.DBus\">\n"
" <method name=\"AddMatch\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" </method>\n"
" <method name=\"RemoveMatch\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" </method>\n"
" <method name=\"GetConnectionCredentials\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"a{sv}\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"GetConnectionSELinuxSecurityContext\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"ay\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"GetConnectionUnixProcessID\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"GetConnectionUnixUser\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"GetId\">\n"
" <arg type=\"s\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"GetNameOwner\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"s\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"Hello\">\n"
" <arg type=\"s\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"ListActivatableNames\">\n"
" <arg type=\"as\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"ListNames\">\n"
" <arg type=\"as\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"ListQueuedOwners\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"as\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"NameHasOwner\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"b\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"ReleaseName\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"ReloadConfig\">\n"
" </method>\n"
" <method name=\"RequestName\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"StartServiceByName\">\n"
" <arg type=\"s\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"in\"/>\n"
" <arg type=\"u\" direction=\"out\"/>\n"
" </method>\n"
" <method name=\"UpdateActivationEnvironment\">\n"
" <arg type=\"a{ss}\" direction=\"in\"/>\n"
" </method>\n"
" <signal name=\"NameAcquired\">\n"
" <arg type=\"s\"/>\n"
" </signal>\n"
" <signal name=\"NameLost\">\n"
" <arg type=\"s\"/>\n"
" </signal>\n"
" <signal name=\"NameOwnerChanged\">\n"
" <arg type=\"s\"/>\n"
" <arg type=\"s\"/>\n"
" <arg type=\"s\"/>\n"
" </signal>\n"
" </interface>\n"
"</node>\n");
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "AddMatch")) {
const char *match;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &match);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_add_match(a, NULL, match, proxy_match, p);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, NULL);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RemoveMatch")) {
const char *match;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &match);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = bus_remove_match_by_string(a, match, NULL, NULL);
if (r == 0)
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_MATCH_RULE_NOT_FOUND, "Match rule not found"));
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, NULL);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionCredentials")) {
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = get_creds_by_message(a, m, SD_BUS_CREDS_PID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SELINUX_CONTEXT, &creds, &error);
if (r < 0)
return synthetic_reply_method_errno(m, r, &error);
r = sd_bus_message_new_method_return(m, &reply);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_open_container(reply, 'a', "{sv}");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
/* Due to i.e. namespace translations some data might be missing */
if (creds->mask & SD_BUS_CREDS_PID) {
r = sd_bus_message_append(reply, "{sv}", "ProcessID", "u", (uint32_t) creds->pid);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
}
if (creds->mask & SD_BUS_CREDS_EUID) {
r = sd_bus_message_append(reply, "{sv}", "UnixUserID", "u", (uint32_t) creds->euid);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
}
if (creds->mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
r = sd_bus_message_open_container(reply, 'e', "sv");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_append(reply, "s", "LinuxSecurityLabel");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_open_container(reply, 'v', "ay");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_append_array(reply, 'y', creds->label, strlen(creds->label));
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_close_container(reply);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_close_container(reply);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
}
r = sd_bus_message_close_container(reply);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_driver_send(m->bus, reply);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionSELinuxSecurityContext")) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = get_creds_by_message(a, m, SD_BUS_CREDS_SELINUX_CONTEXT, &creds, &error);
if (r < 0)
return synthetic_reply_method_errno(m, r, &error);
if (!(creds->mask & SD_BUS_CREDS_SELINUX_CONTEXT))
return synthetic_reply_method_errno(m, -EOPNOTSUPP, NULL);
r = sd_bus_message_new_method_return(m, &reply);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_append_array(reply, 'y', creds->label, strlen(creds->label));
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_driver_send(m->bus, reply);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixProcessID")) {
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = get_creds_by_message(a, m, SD_BUS_CREDS_PID, &creds, &error);
if (r < 0)
return synthetic_reply_method_errno(m, r, &error);
if (!(creds->mask & SD_BUS_CREDS_PID))
return synthetic_reply_method_errno(m, -EOPNOTSUPP, NULL);
return synthetic_reply_method_return(m, "u", (uint32_t) creds->pid);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixUser")) {
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = get_creds_by_message(a, m, SD_BUS_CREDS_EUID, &creds, &error);
if (r < 0)
return synthetic_reply_method_errno(m, r, &error);
if (!(creds->mask & SD_BUS_CREDS_EUID))
return synthetic_reply_method_errno(m, -EOPNOTSUPP, NULL);
return synthetic_reply_method_return(m, "u", (uint32_t) creds->euid);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetId")) {
sd_id128_t server_id;
char buf[SD_ID128_STRING_MAX];
if (!sd_bus_message_has_signature(m, ""))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_get_bus_id(a, &server_id);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, "s", sd_id128_to_string(server_id, buf));
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetNameOwner")) {
const char *name;
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &name);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (streq(name, "org.freedesktop.DBus"))
return synthetic_reply_method_return(m, "s", "org.freedesktop.DBus");
r = get_creds_by_name(a, name, SD_BUS_CREDS_UNIQUE_NAME, &creds, &error);
if (r < 0)
return synthetic_reply_method_errno(m, r, &error);
if (!(creds->mask & SD_BUS_CREDS_UNIQUE_NAME))
return synthetic_reply_method_errno(m, -EOPNOTSUPP, NULL);
return synthetic_reply_method_return(m, "s", creds->unique_name);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListActivatableNames")) {
_cleanup_strv_free_ char **names = NULL;
if (!sd_bus_message_has_signature(m, ""))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_list_names(a, NULL, &names);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
/* Let's sort the names list to make it stable */
strv_sort(names);
return synthetic_reply_method_return_strv(m, names);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListNames")) {
_cleanup_strv_free_ char **names = NULL;
if (!sd_bus_message_has_signature(m, ""))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_list_names(a, &names, NULL);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = strv_extend(&names, "org.freedesktop.DBus");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
/* Let's sort the names list to make it stable */
strv_sort(names);
return synthetic_reply_method_return_strv(m, names);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListQueuedOwners")) {
struct kdbus_cmd_list cmd = {
.flags = KDBUS_LIST_QUEUED,
.size = sizeof(cmd),
};
struct kdbus_info *name_list, *name;
_cleanup_strv_free_ char **owners = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
char *arg0;
int err = 0;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &arg0);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_get_name_creds(a, arg0, 0, NULL);
if (r == -ESRCH || r == -ENXIO) {
sd_bus_error_setf(&error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Could not get owners of name '%s': no such name.", arg0);
return synthetic_reply_method_errno(m, r, &error);
}
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = ioctl(a->input_fd, KDBUS_CMD_LIST, &cmd);
if (r < 0)
return synthetic_reply_method_errno(m, -errno, NULL);
name_list = (struct kdbus_info *) ((uint8_t *) a->kdbus_buffer + cmd.offset);
KDBUS_FOREACH(name, name_list, cmd.list_size) {
struct kdbus_item *item;
char *n;
KDBUS_ITEM_FOREACH(item, name, items) {
if (item->type == KDBUS_ITEM_OWNED_NAME) {
if (!streq_ptr(item->name.name, arg0))
continue;
if (asprintf(&n, ":1.%llu", (unsigned long long) name->id) < 0) {
err = -ENOMEM;
break;
}
r = strv_consume(&owners, n);
if (r < 0) {
err = r;
break;
}
}
}
if (err < 0)
break;
}
r = bus_kernel_cmd_free(a, cmd.offset);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (err < 0)
return synthetic_reply_method_errno(m, err, NULL);
return synthetic_reply_method_return_strv(m, owners);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "NameHasOwner")) {
const char *name;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &name);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (streq(name, "org.freedesktop.DBus"))
return synthetic_reply_method_return(m, "b", true);
r = sd_bus_get_name_creds(a, name, 0, NULL);
if (r < 0 && r != -ESRCH && r != -ENXIO)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, "b", r >= 0);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReleaseName")) {
const char *name;
if (!sd_bus_message_has_signature(m, "s"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "s", &name);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_release_name(a, name);
if (r < 0) {
if (r == -ESRCH)
return synthetic_reply_method_return(m, "u", BUS_NAME_NON_EXISTENT);
if (r == -EADDRINUSE)
return synthetic_reply_method_return(m, "u", BUS_NAME_NOT_OWNER);
return synthetic_reply_method_errno(m, r, NULL);
}
set_remove(owned_names, (char*) name);
return synthetic_reply_method_return(m, "u", BUS_NAME_RELEASED);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReloadConfig")) {
if (!sd_bus_message_has_signature(m, ""))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = shared_policy_reload(sp);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, NULL);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RequestName")) {
const char *name;
uint32_t flags, param;
bool in_queue;
if (!sd_bus_message_has_signature(m, "su"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "su", &name, &flags);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (sp) {
Policy *policy;
bool denied;
policy = shared_policy_acquire(sp);
denied = !policy_check_own(policy, ucred->uid, ucred->gid, name);
shared_policy_release(sp, policy);
if (denied)
return synthetic_reply_method_errno(m, -EPERM, NULL);
}
if ((flags & ~(BUS_NAME_ALLOW_REPLACEMENT|BUS_NAME_REPLACE_EXISTING|BUS_NAME_DO_NOT_QUEUE)) != 0)
return synthetic_reply_method_errno(m, -EINVAL, NULL);
param = 0;
if (flags & BUS_NAME_ALLOW_REPLACEMENT)
param |= SD_BUS_NAME_ALLOW_REPLACEMENT;
if (flags & BUS_NAME_REPLACE_EXISTING)
param |= SD_BUS_NAME_REPLACE_EXISTING;
if (!(flags & BUS_NAME_DO_NOT_QUEUE))
param |= SD_BUS_NAME_QUEUE;
r = set_put_strdup(owned_names, name);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_request_name(a, name, param);
if (r < 0) {
if (r == -EALREADY)
return synthetic_reply_method_return(m, "u", BUS_NAME_ALREADY_OWNER);
set_remove(owned_names, (char*) name);
if (r == -EEXIST)
return synthetic_reply_method_return(m, "u", BUS_NAME_EXISTS);
return synthetic_reply_method_errno(m, r, NULL);
}
in_queue = (r == 0);
if (in_queue)
return synthetic_reply_method_return(m, "u", BUS_NAME_IN_QUEUE);
return synthetic_reply_method_return(m, "u", BUS_NAME_PRIMARY_OWNER);
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "StartServiceByName")) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *msg = NULL;
ProxyActivation *activation;
const char *name;
uint64_t cookie;
uint32_t flags;
if (!sd_bus_message_has_signature(m, "su"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_read(m, "su", &name, &flags);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (flags != 0)
return synthetic_reply_method_errno(m, -EINVAL, NULL);
r = sd_bus_get_name_creds(a, name, 0, NULL);
if (r >= 0 || streq(name, "org.freedesktop.DBus"))
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_ALREADY_RUNNING);
if (r != -ESRCH)
return synthetic_reply_method_errno(m, r, NULL);
if (p->n_activations >= PROXY_ACTIVATIONS_MAX)
return synthetic_reply_method_errno(m, -EMFILE, NULL);
r = sd_bus_message_get_cookie(m, &cookie);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_new_method_call(a,
&msg,
name,
"/",
"org.freedesktop.DBus.Peer",
"Ping");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = bus_message_seal(msg, cookie, BUS_DEFAULT_TIMEOUT);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
activation = new0(ProxyActivation, 1);
if (!activation)
return synthetic_reply_method_errno(m, -ENOMEM, NULL);
r = sd_bus_call_async(a,
&activation->slot,
msg,
driver_activation,
activation,
0);
if (r < 0) {
free(activation);
return synthetic_reply_method_errno(m, r, NULL);
}
activation->proxy = p;
activation->request = sd_bus_message_ref(m);
LIST_PREPEND(activations_by_proxy, p->activations, activation);
++p->n_activations;
return 1;
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "UpdateActivationEnvironment")) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *msg = NULL;
_cleanup_strv_free_ char **args = NULL;
if (!sd_bus_message_has_signature(m, "a{ss}"))
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{ss}");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "ss")) > 0) {
_cleanup_free_ char *s = NULL;
const char *key;
const char *value;
r = sd_bus_message_read(m, "ss", &key, &value);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
s = strjoin(key, "=", value, NULL);
if (!s)
return synthetic_reply_method_errno(m, -ENOMEM, NULL);
if (!env_assignment_is_valid(s)) {
log_warning("UpdateActivationEnvironment() called with invalid assignment, discarding: %s", s);
} else {
r = strv_extend(&args, s);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
}
r = sd_bus_message_exit_container(m);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
}
r = sd_bus_message_exit_container(m);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
if (strv_isempty(args)) /* nothing to do? */
return synthetic_reply_method_return(m, NULL);
r = sd_bus_message_new_method_call(
a,
&msg,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetEnvironment");
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_message_append_strv(msg, args);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
r = sd_bus_call(a, msg, 0, NULL, NULL);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
return synthetic_reply_method_return(m, NULL);
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
r = sd_bus_error_setf(&error, SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method '%s'.", m->member);
return synthetic_reply_method_errno(m, r, &error);
}
}