static bool complete_dbus_request(DBusMessage *message,
int *sv, struct ucred *rcred, struct ucred *vcred)
{
char buf[1];
if (!dbus_connection_send(server_conn, message, NULL)) {
nih_error("%s: failed to send dbus message", __func__);
dbus_message_unref(message);
return false;
}
dbus_connection_flush(server_conn);
dbus_message_unref(message);
if (proxyrecv(sv[0], buf, 1) != 1) {
nih_error("%s: Error getting reply from server over socketpair",
__func__);
return false;
}
if (send_creds(sv[0], rcred)) {
nih_error("%s: Error sending pid over SCM_CREDENTIAL",
__func__);
return false;
}
if (!vcred) // this request only requires one scm_credential
return true;
if (proxyrecv(sv[0], buf, 1) != 1) {
nih_error("%s: Error getting reply from server over socketpair",
__func__);
return false;
}
if (send_creds(sv[0], vcred)) {
nih_error("%s: Error sending pid over SCM_CREDENTIAL",
__func__);
return false;
}
return true;
}
static int do_chown_cgroup(const char *controller, const char *cgroup_path,
uid_t newuid)
{
int sv[2] = {-1, -1}, optval = 1, ret = -1;
char buf[1];
struct pollfd fds;
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, sv) < 0) {
SYSERROR("Error creating socketpair");
goto out;
}
if (setsockopt(sv[1], SOL_SOCKET, SO_PASSCRED, &optval, sizeof(optval)) == -1) {
SYSERROR("setsockopt failed");
goto out;
}
if (setsockopt(sv[0], SOL_SOCKET, SO_PASSCRED, &optval, sizeof(optval)) == -1) {
SYSERROR("setsockopt failed");
goto out;
}
if ( cgmanager_chown_scm_sync(NULL, cgroup_manager, controller,
cgroup_path, sv[1]) != 0) {
NihError *nerr;
nerr = nih_error_get();
ERROR("call to cgmanager_chown_scm_sync failed: %s", nerr->message);
nih_free(nerr);
goto out;
}
/* now send credentials */
fds.fd = sv[0];
fds.events = POLLIN;
fds.revents = 0;
if (poll(&fds, 1, -1) <= 0) {
ERROR("Error getting go-ahead from server: %s", strerror(errno));
goto out;
}
if (read(sv[0], &buf, 1) != 1) {
ERROR("Error getting reply from server over socketpair");
goto out;
}
if (send_creds(sv[0], getpid(), getuid(), getgid())) {
SYSERROR("%s: Error sending pid over SCM_CREDENTIAL", __func__);
goto out;
}
fds.fd = sv[0];
fds.events = POLLIN;
fds.revents = 0;
if (poll(&fds, 1, -1) <= 0) {
ERROR("Error getting go-ahead from server: %s", strerror(errno));
goto out;
}
if (read(sv[0], &buf, 1) != 1) {
ERROR("Error getting reply from server over socketpair");
goto out;
}
if (send_creds(sv[0], getpid(), newuid, 0)) {
SYSERROR("%s: Error sending pid over SCM_CREDENTIAL", __func__);
goto out;
}
fds.fd = sv[0];
fds.events = POLLIN;
fds.revents = 0;
if (poll(&fds, 1, -1) <= 0) {
ERROR("Error getting go-ahead from server: %s", strerror(errno));
goto out;
}
ret = read(sv[0], buf, 1);
out:
close(sv[0]);
close(sv[1]);
if (ret == 1 && *buf == '1')
return 0;
return -1;
}
int handle_update(char *msg) {
return send_creds(UPDATE, msg);
}
int handle_add(char *msg) {
return send_creds(ADD, msg);
}