| /*** |
| 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); |
| } |
| } |