static int
svc_vc_soupcall(struct socket *so, void *arg, int waitflag)
{
SVCXPRT *xprt = (SVCXPRT *) arg;
if (soreadable(xprt->xp_socket))
xprt_active(xprt);
return (SU_OK);
}
/*
* Create a new transport for a socket optained via soaccept().
*/
SVCXPRT *
svc_vc_create_conn(SVCPOOL *pool, struct socket *so, struct sockaddr *raddr)
{
SVCXPRT *xprt = NULL;
struct cf_conn *cd = NULL;
struct sockaddr* sa = NULL;
struct sockopt opt;
int one = 1;
int error;
bzero(&opt, sizeof(struct sockopt));
opt.sopt_dir = SOPT_SET;
opt.sopt_level = SOL_SOCKET;
opt.sopt_name = SO_KEEPALIVE;
opt.sopt_val = &one;
opt.sopt_valsize = sizeof(one);
CURVNET_SET(so->so_vnet);
error = sosetopt(so, &opt);
if (error) {
CURVNET_RESTORE();
return (NULL);
}
if (so->so_proto->pr_protocol == IPPROTO_TCP) {
bzero(&opt, sizeof(struct sockopt));
opt.sopt_dir = SOPT_SET;
opt.sopt_level = IPPROTO_TCP;
opt.sopt_name = TCP_NODELAY;
opt.sopt_val = &one;
opt.sopt_valsize = sizeof(one);
error = sosetopt(so, &opt);
if (error) {
CURVNET_RESTORE();
return (NULL);
}
}
CURVNET_RESTORE();
cd = mem_alloc(sizeof(*cd));
cd->strm_stat = XPRT_IDLE;
xprt = svc_xprt_alloc();
sx_init(&xprt->xp_lock, "xprt->xp_lock");
xprt->xp_pool = pool;
xprt->xp_socket = so;
xprt->xp_p1 = cd;
xprt->xp_p2 = NULL;
xprt->xp_ops = &svc_vc_ops;
/*
* See http://www.connectathon.org/talks96/nfstcp.pdf - client
* has a 5 minute timer, server has a 6 minute timer.
*/
xprt->xp_idletimeout = 6 * 60;
memcpy(&xprt->xp_rtaddr, raddr, raddr->sa_len);
error = so->so_proto->pr_usrreqs->pru_sockaddr(so, &sa);
if (error)
goto cleanup_svc_vc_create;
memcpy(&xprt->xp_ltaddr, sa, sa->sa_len);
free(sa, M_SONAME);
xprt_register(xprt);
SOCKBUF_LOCK(&so->so_rcv);
xprt->xp_upcallset = 1;
soupcall_set(so, SO_RCV, svc_vc_soupcall, xprt);
SOCKBUF_UNLOCK(&so->so_rcv);
/*
* Throw the transport into the active list in case it already
* has some data buffered.
*/
sx_xlock(&xprt->xp_lock);
xprt_active(xprt);
sx_xunlock(&xprt->xp_lock);
return (xprt);
cleanup_svc_vc_create:
if (xprt) {
mem_free(xprt, sizeof(*xprt));
}
if (cd)
mem_free(cd, sizeof(*cd));
return (NULL);
}