void
udp_ctloutput(netmsg_t msg)
{
struct socket *so = msg->base.nm_so;
struct sockopt *sopt = msg->ctloutput.nm_sopt;
struct inpcb *inp = so->so_pcb;
if (sopt->sopt_level == IPPROTO_IP && sopt->sopt_dir == SOPT_SET) {
switch (sopt->sopt_name) {
case IP_MULTICAST_IF:
case IP_MULTICAST_VIF:
case IP_MULTICAST_TTL:
case IP_MULTICAST_LOOP:
case IP_ADD_MEMBERSHIP:
case IP_DROP_MEMBERSHIP:
/*
* This pr_ctloutput msg will be forwarded
* to netisr0 to run; we can't do direct
* detaching anymore.
*
* NOTE:
* Don't optimize for the sockets whose
* current so_port is netisr0's msgport.
* These sockets could be connect(2)'ed
* later and the so_port will be changed.
*/
inp->inp_flags &= ~INP_DIRECT_DETACH;
break;
}
}
return ip_ctloutput(msg);
}
int
tcp_ctloutput(struct socket *so, struct sockopt *sopt)
{
int error, opt, optval;
struct inpcb *inp;
struct tcpcb *tp;
struct tcp_info ti;
error = 0;
inp = sotoinpcb(so);
KASSERT(inp != NULL, ("tcp_ctloutput: inp == NULL"));
INP_WLOCK(inp);
if (sopt->sopt_level != IPPROTO_TCP) {
#ifdef INET6
if (inp->inp_vflag & INP_IPV6PROTO) {
INP_WUNLOCK(inp);
error = ip6_ctloutput(so, sopt);
} else {
#endif /* INET6 */
INP_WUNLOCK(inp);
error = ip_ctloutput(so, sopt);
#ifdef INET6
}
#endif
return (error);
}
if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
INP_WUNLOCK(inp);
return (ECONNRESET);
}
switch (sopt->sopt_dir) {
case SOPT_SET:
switch (sopt->sopt_name) {
#ifdef TCP_SIGNATURE
case TCP_MD5SIG:
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
return (error);
INP_WLOCK_RECHECK(inp);
if (optval > 0)
tp->t_flags |= TF_SIGNATURE;
else
tp->t_flags &= ~TF_SIGNATURE;
INP_WUNLOCK(inp);
break;
#endif /* TCP_SIGNATURE */
case TCP_NODELAY:
case TCP_NOOPT:
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
return (error);
INP_WLOCK_RECHECK(inp);
switch (sopt->sopt_name) {
case TCP_NODELAY:
opt = TF_NODELAY;
break;
case TCP_NOOPT:
opt = TF_NOOPT;
break;
default:
opt = 0; /* dead code to fool gcc */
break;
}
if (optval)
tp->t_flags |= opt;
else
tp->t_flags &= ~opt;
INP_WUNLOCK(inp);
break;
case TCP_NOPUSH:
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
return (error);
INP_WLOCK_RECHECK(inp);
if (optval)
tp->t_flags |= TF_NOPUSH;
else {
tp->t_flags &= ~TF_NOPUSH;
error = tcp_output(tp);
}
INP_WUNLOCK(inp);
break;
case TCP_MAXSEG:
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
return (error);
INP_WLOCK_RECHECK(inp);
if (optval > 0 && optval <= tp->t_maxseg &&
optval + 40 >= V_tcp_minmss)
tp->t_maxseg = optval;
else
error = EINVAL;
INP_WUNLOCK(inp);
break;
case TCP_INFO:
INP_WUNLOCK(inp);
error = EINVAL;
break;
default:
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
break;
case SOPT_GET:
tp = intotcpcb(inp);
switch (sopt->sopt_name) {
#ifdef TCP_SIGNATURE
case TCP_MD5SIG:
optval = (tp->t_flags & TF_SIGNATURE) ? 1 : 0;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
#endif
case TCP_NODELAY:
optval = tp->t_flags & TF_NODELAY;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
case TCP_MAXSEG:
optval = tp->t_maxseg;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
case TCP_NOOPT:
optval = tp->t_flags & TF_NOOPT;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
case TCP_NOPUSH:
optval = tp->t_flags & TF_NOPUSH;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
case TCP_INFO:
tcp_fill_info(tp, &ti);
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &ti, sizeof ti);
break;
default:
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
break;
}
return (error);
}
int
udp_ctloutput(struct socket *so, struct sockopt *sopt)
{
struct inpcb *inp;
struct udpcb *up;
int isudplite, error, optval;
error = 0;
isudplite = (so->so_proto->pr_protocol == IPPROTO_UDPLITE) ? 1 : 0;
inp = sotoinpcb(so);
KASSERT(inp != NULL, ("%s: inp == NULL", __func__));
INP_WLOCK(inp);
if (sopt->sopt_level != so->so_proto->pr_protocol) {
#ifdef INET6
if (INP_CHECK_SOCKAF(so, AF_INET6)) {
INP_WUNLOCK(inp);
error = ip6_ctloutput(so, sopt);
}
#endif
#if defined(INET) && defined(INET6)
else
#endif
#ifdef INET
{
INP_WUNLOCK(inp);
error = ip_ctloutput(so, sopt);
}
#endif
return (error);
}
switch (sopt->sopt_dir) {
case SOPT_SET:
switch (sopt->sopt_name) {
case UDP_ENCAP:
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
break;
inp = sotoinpcb(so);
KASSERT(inp != NULL, ("%s: inp == NULL", __func__));
INP_WLOCK(inp);
#ifdef IPSEC_NAT_T
up = intoudpcb(inp);
KASSERT(up != NULL, ("%s: up == NULL", __func__));
#endif
switch (optval) {
case 0:
/* Clear all UDP encap. */
#ifdef IPSEC_NAT_T
up->u_flags &= ~UF_ESPINUDP_ALL;
#endif
break;
#ifdef IPSEC_NAT_T
case UDP_ENCAP_ESPINUDP:
case UDP_ENCAP_ESPINUDP_NON_IKE:
up->u_flags &= ~UF_ESPINUDP_ALL;
if (optval == UDP_ENCAP_ESPINUDP)
up->u_flags |= UF_ESPINUDP;
else if (optval == UDP_ENCAP_ESPINUDP_NON_IKE)
up->u_flags |= UF_ESPINUDP_NON_IKE;
break;
#endif
default:
error = EINVAL;
break;
}
INP_WUNLOCK(inp);
break;
case UDPLITE_SEND_CSCOV:
case UDPLITE_RECV_CSCOV:
if (!isudplite) {
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
INP_WUNLOCK(inp);
error = sooptcopyin(sopt, &optval, sizeof(optval),
sizeof(optval));
if (error != 0)
break;
inp = sotoinpcb(so);
KASSERT(inp != NULL, ("%s: inp == NULL", __func__));
INP_WLOCK(inp);
up = intoudpcb(inp);
KASSERT(up != NULL, ("%s: up == NULL", __func__));
if (optval != 0 && optval < 8) {
INP_WUNLOCK(inp);
error = EINVAL;
break;
}
if (sopt->sopt_name == UDPLITE_SEND_CSCOV)
up->u_txcslen = optval;
else
up->u_rxcslen = optval;
INP_WUNLOCK(inp);
break;
default:
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
break;
case SOPT_GET:
switch (sopt->sopt_name) {
#ifdef IPSEC_NAT_T
case UDP_ENCAP:
up = intoudpcb(inp);
KASSERT(up != NULL, ("%s: up == NULL", __func__));
optval = up->u_flags & UF_ESPINUDP_ALL;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
#endif
case UDPLITE_SEND_CSCOV:
case UDPLITE_RECV_CSCOV:
if (!isudplite) {
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
up = intoudpcb(inp);
KASSERT(up != NULL, ("%s: up == NULL", __func__));
if (sopt->sopt_name == UDPLITE_SEND_CSCOV)
optval = up->u_txcslen;
else
optval = up->u_rxcslen;
INP_WUNLOCK(inp);
error = sooptcopyout(sopt, &optval, sizeof(optval));
break;
default:
INP_WUNLOCK(inp);
error = ENOPROTOOPT;
break;
}
break;
}
return (error);
}
/*
* The new sockopt interface makes it possible for us to block in the
* copyin/out step (if we take a page fault). Taking a page fault while
* in a critical section is probably a Bad Thing. (Since sockets and pcbs
* both now use TSM, there probably isn't any need for this function to
* run in a critical section any more. This needs more examination.)
*/
void
tcp_ctloutput(netmsg_t msg)
{
struct socket *so = msg->base.nm_so;
struct sockopt *sopt = msg->ctloutput.nm_sopt;
int error, opt, optval;
struct inpcb *inp;
struct tcpcb *tp;
error = 0;
inp = so->so_pcb;
if (inp == NULL) {
error = ECONNRESET;
goto done;
}
if (sopt->sopt_level != IPPROTO_TCP) {
#ifdef INET6
if (INP_CHECK_SOCKAF(so, AF_INET6))
ip6_ctloutput_dispatch(msg);
else
#endif /* INET6 */
ip_ctloutput(msg);
/* msg invalid now */
return;
}
tp = intotcpcb(inp);
switch (sopt->sopt_dir) {
case SOPT_SET:
error = soopt_to_kbuf(sopt, &optval, sizeof optval,
sizeof optval);
if (error)
break;
switch (sopt->sopt_name) {
case TCP_FASTKEEP:
if (optval > 0) {
if ((tp->t_flags & TF_FASTKEEP) == 0) {
tp->t_flags |= TF_FASTKEEP;
tcp_timer_keep_activity(tp, 0);
}
} else {
tp->t_flags &= ~TF_FASTKEEP;
}
break;
#ifdef TCP_SIGNATURE
case TCP_SIGNATURE_ENABLE:
if (optval > 0)
tp->t_flags |= TF_SIGNATURE;
else
tp->t_flags &= ~TF_SIGNATURE;
break;
#endif /* TCP_SIGNATURE */
case TCP_NODELAY:
case TCP_NOOPT:
switch (sopt->sopt_name) {
case TCP_NODELAY:
opt = TF_NODELAY;
break;
case TCP_NOOPT:
opt = TF_NOOPT;
break;
default:
opt = 0; /* dead code to fool gcc */
break;
}
if (optval)
tp->t_flags |= opt;
else
tp->t_flags &= ~opt;
break;
case TCP_NOPUSH:
if (optval)
tp->t_flags |= TF_NOPUSH;
else {
tp->t_flags &= ~TF_NOPUSH;
error = tcp_output(tp);
}
break;
case TCP_MAXSEG:
/*
* Must be between 0 and maxseg. If the requested
* maxseg is too small to satisfy the desired minmss,
* pump it up (silently so sysctl modifications of
* minmss do not create unexpected program failures).
* Handle degenerate cases.
*/
if (optval > 0 && optval <= tp->t_maxseg) {
if (optval + 40 < tcp_minmss) {
optval = tcp_minmss - 40;
if (optval < 0)
optval = 1;
}
tp->t_maxseg = optval;
} else {
error = EINVAL;
}
break;
default:
error = ENOPROTOOPT;
break;
}
break;
case SOPT_GET:
switch (sopt->sopt_name) {
#ifdef TCP_SIGNATURE
case TCP_SIGNATURE_ENABLE:
optval = (tp->t_flags & TF_SIGNATURE) ? 1 : 0;
break;
#endif /* TCP_SIGNATURE */
case TCP_NODELAY:
optval = tp->t_flags & TF_NODELAY;
break;
case TCP_MAXSEG:
optval = tp->t_maxseg;
break;
case TCP_NOOPT:
optval = tp->t_flags & TF_NOOPT;
break;
case TCP_NOPUSH:
optval = tp->t_flags & TF_NOPUSH;
break;
default:
error = ENOPROTOOPT;
break;
}
if (error == 0)
soopt_from_kbuf(sopt, &optval, sizeof optval);
break;
}
done:
lwkt_replymsg(&msg->lmsg, error);
}
