/*
* A single 'fd' number was written, in which case it must be for
* a socket of a supported family/protocol, and we use it as an
* nfsd listener.
*/
static ssize_t __write_ports_addfd(char *buf, struct net *net)
{
char *mesg = buf;
int fd, err;
err = get_int(&mesg, &fd);
if (err != 0 || fd < 0)
return -EINVAL;
if (svc_alien_sock(net, fd)) {
printk(KERN_ERR "%s: socket net is different to NFSd's one\n", __func__);
return -EINVAL;
}
err = nfsd_create_serv(net);
if (err != 0)
return err;
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
nfsd_destroy(net);
return err;
}
/* Decrease the count, but don't shut down the service */
nfsd_serv->sv_nrthreads--;
return err;
}
static ssize_t __write_ports_addxprt(char *buf)
{
char transport[16];
struct svc_xprt *xprt;
int port, err;
struct net *net = &init_net;
if (sscanf(buf, "%15s %4u", transport, &port) != 2)
return -EINVAL;
if (port < 1 || port > USHRT_MAX)
return -EINVAL;
err = nfsd_create_serv();
if (err != 0)
return err;
err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET, port, SVC_SOCK_ANONYMOUS);
if (err < 0)
goto out_err;
err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET6, port, SVC_SOCK_ANONYMOUS);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_close;
nfsd_serv->sv_nrthreads--;
return 0;
out_close:
xprt = svc_find_xprt(nfsd_serv, transport, net, PF_INET, port);
if (xprt != NULL) {
svc_close_xprt(xprt);
svc_xprt_put(xprt);
}
out_err:
nfsd_destroy(net);
return err;
}
/*
* A single 'fd' number was written, in which case it must be for
* a socket of a supported family/protocol, and we use it as an
* nfsd listener.
*/
static ssize_t __write_ports_addfd(char *buf)
{
char *mesg = buf;
int fd, err;
struct net *net = &init_net;
err = get_int(&mesg, &fd);
if (err != 0 || fd < 0)
return -EINVAL;
err = nfsd_create_serv();
if (err != 0)
return err;
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
nfsd_destroy(net);
return err;
}
nfsd_serv->sv_nrthreads--;
return err;
}
