#include "smack-util.h"
#include "set.h"
#include "bus-xml-policy.h"
+#include "driver.h"
+#include "synthesize.h"
static char *arg_address = NULL;
static char *arg_command_line_buffer = NULL;
return 0;
}
-static int synthesize_name_acquired(sd_bus *a, sd_bus *b, sd_bus_message *m) {
- _cleanup_bus_message_unref_ sd_bus_message *n = NULL;
- const char *name, *old_owner, *new_owner;
- int r;
-
- assert(a);
- assert(b);
- assert(m);
-
- /* If we get NameOwnerChanged for our own name, we need to
- * synthesize NameLost/NameAcquired, since socket clients need
- * that, even though it is obsoleted on kdbus */
-
- if (!a->is_kernel)
- return 0;
-
- if (!sd_bus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged") ||
- !streq_ptr(m->path, "/org/freedesktop/DBus") ||
- !streq_ptr(m->sender, "org.freedesktop.DBus"))
- return 0;
-
- r = sd_bus_message_read(m, "sss", &name, &old_owner, &new_owner);
- if (r < 0)
- return r;
-
- r = sd_bus_message_rewind(m, true);
- if (r < 0)
- return r;
-
- if (streq(old_owner, a->unique_name)) {
-
- r = sd_bus_message_new_signal(
- b,
- &n,
- "/org/freedesktop/DBus",
- "org.freedesktop.DBus",
- "NameLost");
-
- } else if (streq(new_owner, a->unique_name)) {
-
- r = sd_bus_message_new_signal(
- b,
- &n,
- "/org/freedesktop/DBus",
- "org.freedesktop.DBus",
- "NameAcquired");
- } else
- return 0;
-
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(n, "s", name);
- if (r < 0)
- return r;
-
- r = bus_message_append_sender(n, "org.freedesktop.DBus");
- if (r < 0)
- return r;
-
- r = bus_seal_synthetic_message(b, n);
- if (r < 0)
- return r;
-
- return sd_bus_send(b, n, NULL);
-}
-
-static int synthetic_driver_send(sd_bus *b, sd_bus_message *m) {
- int r;
-
- assert(b);
- assert(m);
-
- r = bus_message_append_sender(m, "org.freedesktop.DBus");
- if (r < 0)
- return r;
-
- r = bus_seal_synthetic_message(b, m);
- if (r < 0)
- return r;
-
- return sd_bus_send(b, m, NULL);
-}
-
-static int synthetic_reply_method_error(sd_bus_message *call, const sd_bus_error *e) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- r = sd_bus_message_new_method_error(call, &m, e);
- if (r < 0)
- return r;
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int synthetic_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- va_list ap;
-
- va_start(ap, format);
- bus_error_setfv(&error, name, format, ap);
- va_end(ap);
-
- return synthetic_reply_method_error(call, &error);
-}
-
-static int synthetic_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *p) {
-
- _cleanup_bus_error_free_ sd_bus_error berror = SD_BUS_ERROR_NULL;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- if (sd_bus_error_is_set(p))
- return synthetic_reply_method_error(call, p);
-
- sd_bus_error_set_errno(&berror, error);
-
- return synthetic_reply_method_error(call, &berror);
-}
-
-static int synthetic_reply_method_return(sd_bus_message *call, const char *types, ...) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- r = sd_bus_message_new_method_return(call, &m);
- if (r < 0)
- return r;
-
- if (!isempty(types)) {
- va_list ap;
-
- va_start(ap, types);
- r = bus_message_append_ap(m, types, ap);
- va_end(ap);
- if (r < 0)
- return r;
- }
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int synthetic_reply_return_strv(sd_bus_message *call, char **l) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- r = sd_bus_message_new_method_return(call, &m);
- if (r < 0)
- return synthetic_reply_method_errno(call, r, NULL);
-
- r = sd_bus_message_append_strv(m, l);
- if (r < 0)
- return synthetic_reply_method_errno(call, r, NULL);
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int get_creds_by_name(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
- _cleanup_bus_creds_unref_ 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;
-
- if ((c->mask & mask) != mask)
- return -ENOTSUP;
-
- *_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 process_driver(sd_bus *a, sd_bus *b, sd_bus_message *m, Policy *policy, 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=\"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, NULL, NULL);
- 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", "GetConnectionSELinuxSecurityContext")) {
- _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
- _cleanup_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);
-
- return synthetic_reply_method_return(m, "y", creds->label, strlen(creds->label));
-
- } else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixProcessID")) {
- _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
- _cleanup_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);
-
- 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_bus_creds_unref_ sd_bus_creds *creds = NULL;
- _cleanup_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_UID, &creds, &error);
- if (r < 0)
- return synthetic_reply_method_errno(m, r, &error);
-
- return synthetic_reply_method_return(m, "u", (uint32_t) creds->uid);
-
- } 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_bus_creds_unref_ sd_bus_creds *creds = NULL;
- _cleanup_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);
-
- 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_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_return_strv(m, names);
-
- } else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListQueuedOwners")) {
- struct kdbus_cmd_name_list cmd = {};
- struct kdbus_name_list *name_list;
- struct kdbus_name_info *name;
- _cleanup_strv_free_ char **owners = NULL;
- _cleanup_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);
-
- cmd.flags = KDBUS_NAME_LIST_QUEUED;
- r = ioctl(a->input_fd, KDBUS_CMD_NAME_LIST, &cmd);
- if (r < 0)
- return synthetic_reply_method_errno(m, -errno, NULL);
-
- name_list = (struct kdbus_name_list *) ((uint8_t *) a->kdbus_buffer + cmd.offset);
-
- KDBUS_ITEM_FOREACH(name, name_list, names) {
- const char *entry_name = NULL;
- struct kdbus_item *item;
- char *n;
-
- KDBUS_ITEM_FOREACH(item, name, items)
- if (item->type == KDBUS_ITEM_OWNED_NAME)
- entry_name = item->name.name;
-
- if (!streq_ptr(entry_name, arg0))
- continue;
-
- if (asprintf(&n, ":1.%llu", (unsigned long long) name->owner_id) < 0) {
- err = -ENOMEM;
- break;
- }
-
- r = strv_consume(&owners, n);
- if (r < 0) {
- err = r;
- 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_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")) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_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_error_setf(&error, SD_BUS_ERROR_NOT_SUPPORTED, "%s() is not supported", sd_bus_message_get_member(m));
-
- return synthetic_reply_method_errno(m, r, &error);
-
- } 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 (policy && !policy_check_own(policy, ucred->uid, ucred->gid, name))
- 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_bus_message_unref_ sd_bus_message *msg = NULL;
- const char *name;
- 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);
-
- 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 = sd_bus_send(a, msg, NULL);
- if (r < 0)
- return synthetic_reply_method_errno(m, r, NULL);
-
- return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
-
- } else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "UpdateActivationEnvironment")) {
- _cleanup_bus_message_unref_ 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);
-
- 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 (!args)
- return synthetic_reply_method_errno(m, -EINVAL, 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_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);
- }
-}
-
static int handle_policy_error(sd_bus_message *m, int r) {
if (r == -ESRCH || r == -ENXIO)
return synthetic_reply_method_errorf(m, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Name %s is currently not owned by anyone.", m->destination);
/* First check whether the sender can send the message to our name */
if (set_isempty(owned_names)) {
- if (policy_check_send(policy, sender_uid, sender_gid, m->header->type, NULL, m->path, m->interface, m->member))
+ if (policy_check_send(policy, sender_uid, sender_gid, m->header->type, NULL, m->path, m->interface, m->member, false))
granted = true;
} else {
Iterator i;
char *n;
SET_FOREACH(n, owned_names, i)
- if (policy_check_send(policy, sender_uid, sender_gid, m->header->type, n, m->path, m->interface, m->member)) {
+ if (policy_check_send(policy, sender_uid, sender_gid, m->header->type, n, m->path, m->interface, m->member, false)) {
granted = true;
break;
}
if (granted) {
/* Then check whether us (the recipient) can receive from the sender's name */
if (strv_isempty(sender_names)) {
- if (policy_check_recv(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member))
+ if (policy_check_recv(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member, false))
return 0;
} else {
char **n;
STRV_FOREACH(n, sender_names) {
- if (policy_check_recv(policy, our_ucred->uid, our_ucred->gid, m->header->type, *n, m->path, m->interface, m->member))
+ if (policy_check_recv(policy, our_ucred->uid, our_ucred->gid, m->header->type, *n, m->path, m->interface, m->member, false))
return 0;
}
}
/* First check if we (the sender) can send to this name */
if (strv_isempty(destination_names)) {
- if (policy_check_send(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member))
+ if (policy_check_send(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member, true))
granted = true;
} else {
char **n;
STRV_FOREACH(n, destination_names) {
- if (policy_check_send(policy, our_ucred->uid, our_ucred->gid, m->header->type, *n, m->path, m->interface, m->member)) {
+ if (policy_check_send(policy, our_ucred->uid, our_ucred->gid, m->header->type, *n, m->path, m->interface, m->member, true)) {
/* If we made a receiver decision,
then remember which name's policy
* skip policy checks in this case. */
return 0;
} else if (set_isempty(owned_names)) {
- if (policy_check_recv(policy, destination_uid, destination_gid, m->header->type, NULL, m->path, m->interface, m->member))
+ if (policy_check_recv(policy, destination_uid, destination_gid, m->header->type, NULL, m->path, m->interface, m->member, true))
return 0;
} else {
Iterator i;
char *n;
SET_FOREACH(n, owned_names, i)
- if (policy_check_recv(policy, destination_uid, destination_gid, m->header->type, n, m->path, m->interface, m->member))
+ if (policy_check_recv(policy, destination_uid, destination_gid, m->header->type, n, m->path, m->interface, m->member, true))
return 0;
}
}
return 0;
}
+static int bus_new_destination(sd_bus **out, struct ucred *ucred, const char *peersec, bool negotiate_fds) {
+ _cleanup_bus_close_unref_ sd_bus *a = NULL;
+ int r;
+
+ r = sd_bus_new(&a);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate bus: %m");
+
+ r = sd_bus_set_description(a, "sd-proxy");
+ if (r < 0)
+ return log_error_errno(r, "Failed to set bus name: %m");
+
+ r = sd_bus_set_address(a, arg_address);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set address to connect to: %m");
+
+ r = sd_bus_negotiate_fds(a, negotiate_fds);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set FD negotiation: %m");
+
+ r = sd_bus_negotiate_creds(a, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_GID|SD_BUS_CREDS_SELINUX_CONTEXT);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set credential negotiation: %m");
+
+ if (ucred->pid > 0) {
+ a->fake_pids.pid = ucred->pid;
+ a->fake_pids_valid = true;
+
+ a->fake_creds.uid = ucred->uid;
+ a->fake_creds.euid = UID_INVALID;
+ a->fake_creds.suid = UID_INVALID;
+ a->fake_creds.fsuid = UID_INVALID;
+ a->fake_creds.gid = ucred->gid;
+ a->fake_creds.egid = GID_INVALID;
+ a->fake_creds.sgid = GID_INVALID;
+ a->fake_creds.fsgid = GID_INVALID;
+ a->fake_creds_valid = true;
+ }
+
+ if (peersec) {
+ a->fake_label = strdup(peersec);
+ if (!a->fake_label)
+ return log_oom();
+ }
+
+ a->manual_peer_interface = true;
+
+ r = sd_bus_start(a);
+ if (r < 0)
+ return log_error_errno(r, "Failed to start bus client: %m");
+
+ *out = a;
+ a = NULL;
+ return 0;
+}
+
+static int bus_new_local(sd_bus **out, sd_bus *dest, int in_fd, int out_fd, bool negotiate_fds) {
+ _cleanup_bus_close_unref_ sd_bus *b = NULL;
+ sd_id128_t server_id;
+ int r;
+
+ r = sd_bus_new(&b);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate bus: %m");
+
+ r = sd_bus_set_fd(b, in_fd, out_fd);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set fds: %m");
+
+ r = sd_bus_get_bus_id(dest, &server_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get server ID: %m");
+
+ r = sd_bus_set_server(b, 1, server_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set server mode: %m");
+
+ r = sd_bus_negotiate_fds(b, negotiate_fds);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set FD negotiation: %m");
+
+ r = sd_bus_negotiate_creds(b, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_GID|SD_BUS_CREDS_SELINUX_CONTEXT);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set credential negotiation: %m");
+
+ r = sd_bus_set_anonymous(b, true);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set anonymous authentication: %m");
+
+ b->manual_peer_interface = true;
+
+ r = sd_bus_start(b);
+ if (r < 0)
+ return log_error_errno(r, "Failed to start bus client: %m");
+
+ *out = b;
+ b = NULL;
+ return 0;
+}
+
static int mac_smack_apply_label_and_drop_cap_mac_admin(pid_t its_pid, const char *new_label) {
#ifdef HAVE_SMACK
int r = 0, k;
#endif
}
+
int main(int argc, char *argv[]) {
_cleanup_bus_close_unref_ sd_bus *a = NULL, *b = NULL;
- sd_id128_t server_id;
int r, in_fd, out_fd;
bool got_hello = false;
bool is_unix;
goto finish;
}
- r = sd_bus_new(&a);
- if (r < 0) {
- log_error_errno(r, "Failed to allocate bus: %m");
- goto finish;
- }
-
- r = sd_bus_set_description(a, "sd-proxy");
- if (r < 0) {
- log_error_errno(r, "Failed to set bus name: %m");
- goto finish;
- }
-
- r = sd_bus_set_address(a, arg_address);
- if (r < 0) {
- log_error_errno(r, "Failed to set address to connect to: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_fds(a, is_unix);
- if (r < 0) {
- log_error_errno(r, "Failed to set FD negotiation: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_creds(a, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_GID|SD_BUS_CREDS_SELINUX_CONTEXT);
- if (r < 0) {
- log_error_errno(r, "Failed to set credential negotiation: %m");
- goto finish;
- }
-
- if (ucred.pid > 0) {
- a->fake_pids.pid = ucred.pid;
- a->fake_pids_valid = true;
-
- a->fake_creds.uid = ucred.uid;
- a->fake_creds.euid = UID_INVALID;
- a->fake_creds.suid = UID_INVALID;
- a->fake_creds.fsuid = UID_INVALID;
- a->fake_creds.gid = ucred.gid;
- a->fake_creds.egid = GID_INVALID;
- a->fake_creds.sgid = GID_INVALID;
- a->fake_creds.fsgid = GID_INVALID;
- a->fake_creds_valid = true;
- }
-
- if (peersec) {
- a->fake_label = peersec;
- peersec = NULL;
- }
-
- a->manual_peer_interface = true;
-
- r = sd_bus_start(a);
- if (r < 0) {
- log_error_errno(r, "Failed to start bus client: %m");
- goto finish;
- }
-
- r = sd_bus_get_bus_id(a, &server_id);
- if (r < 0) {
- log_error_errno(r, "Failed to get server ID: %m");
+ r = bus_new_destination(&a, &ucred, peersec, is_unix);
+ if (r < 0)
goto finish;
- }
if (a->is_kernel) {
if (!arg_configuration) {
}
}
- r = sd_bus_new(&b);
- if (r < 0) {
- log_error_errno(r, "Failed to allocate bus: %m");
- goto finish;
- }
-
- r = sd_bus_set_fd(b, in_fd, out_fd);
- if (r < 0) {
- log_error_errno(r, "Failed to set fds: %m");
- goto finish;
- }
-
- r = sd_bus_set_server(b, 1, server_id);
- if (r < 0) {
- log_error_errno(r, "Failed to set server mode: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_fds(b, is_unix);
- if (r < 0) {
- log_error_errno(r, "Failed to set FD negotiation: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_creds(b, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_GID|SD_BUS_CREDS_SELINUX_CONTEXT);
- if (r < 0) {
- log_error_errno(r, "Failed to set credential negotiation: %m");
- goto finish;
- }
-
- r = sd_bus_set_anonymous(b, true);
- if (r < 0) {
- log_error_errno(r, "Failed to set anonymous authentication: %m");
- goto finish;
- }
-
- b->manual_peer_interface = true;
-
- r = sd_bus_start(b);
- if (r < 0) {
- log_error_errno(r, "Failed to start bus client: %m");
+ r = bus_new_local(&b, a, in_fd, out_fd, is_unix);
+ if (r < 0)
goto finish;
- }
r = rename_service(a, b);
if (r < 0)
}
if (!processed) {
- k = process_driver(a, b, m, policy, &ucred, owned_names);
+ k = bus_proxy_process_driver(a, b, m, policy, &ucred, owned_names);
if (k < 0) {
r = k;
log_error_errno(r, "Failed to process driver calls: %m");
~ianmdlvl / elogind.git / blobdiff