diff options
Diffstat (limited to 'src/bus-proxyd/driver.c')
| -rw-r--r-- | src/bus-proxyd/driver.c | 745 |
1 files changed, 745 insertions, 0 deletions
diff --git a/src/bus-proxyd/driver.c b/src/bus-proxyd/driver.c new file mode 100644 index 0000000000..1af5c310ea --- /dev/null +++ b/src/bus-proxyd/driver.c @@ -0,0 +1,745 @@ +/*** + 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); + } +} |