57bf258e3d
socket addresses in mbufs. (Socket buffers are the one exception.) A number of kernel APIs needed to get fixed in order to make this happen. Also, fix three protocol families which kept PCBs in mbufs to not malloc them instead. Delete some old compatibility cruft while we're at it, and add some new routines in the in_cksum family.
608 lines
15 KiB
C
608 lines
15 KiB
C
/*
|
|
* Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95
|
|
* $Id: udp_usrreq.c,v 1.38 1997/04/27 20:01:16 wollman Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/syslog.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/route.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/in_pcb.h>
|
|
#include <netinet/in_var.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/ip_icmp.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
|
|
/*
|
|
* UDP protocol implementation.
|
|
* Per RFC 768, August, 1980.
|
|
*/
|
|
#ifndef COMPAT_42
|
|
static int udpcksum = 1;
|
|
#else
|
|
static int udpcksum = 0; /* XXX */
|
|
#endif
|
|
SYSCTL_INT(_net_inet_udp, UDPCTL_CHECKSUM, checksum, CTLFLAG_RW,
|
|
&udpcksum, 0, "");
|
|
|
|
static int log_in_vain = 0;
|
|
SYSCTL_INT(_net_inet_udp, OID_AUTO, log_in_vain, CTLFLAG_RW,
|
|
&log_in_vain, 0, "");
|
|
|
|
static struct inpcbhead udb; /* from udp_var.h */
|
|
static struct inpcbinfo udbinfo;
|
|
|
|
#ifndef UDBHASHSIZE
|
|
#define UDBHASHSIZE 64
|
|
#endif
|
|
|
|
static struct udpstat udpstat; /* from udp_var.h */
|
|
SYSCTL_STRUCT(_net_inet_udp, UDPCTL_STATS, stats, CTLFLAG_RD,
|
|
&udpstat, udpstat, "");
|
|
|
|
static struct sockaddr_in udp_in = { sizeof(udp_in), AF_INET };
|
|
|
|
static int udp_output __P((struct inpcb *, struct mbuf *, struct sockaddr *,
|
|
struct mbuf *, struct proc *));
|
|
static void udp_notify __P((struct inpcb *, int));
|
|
|
|
void
|
|
udp_init()
|
|
{
|
|
LIST_INIT(&udb);
|
|
udbinfo.listhead = &udb;
|
|
udbinfo.hashbase = hashinit(UDBHASHSIZE, M_PCB, &udbinfo.hashmask);
|
|
}
|
|
|
|
void
|
|
udp_input(m, iphlen)
|
|
register struct mbuf *m;
|
|
int iphlen;
|
|
{
|
|
register struct ip *ip;
|
|
register struct udphdr *uh;
|
|
register struct inpcb *inp;
|
|
struct mbuf *opts = 0;
|
|
int len;
|
|
struct ip save_ip;
|
|
|
|
udpstat.udps_ipackets++;
|
|
|
|
/*
|
|
* Strip IP options, if any; should skip this,
|
|
* make available to user, and use on returned packets,
|
|
* but we don't yet have a way to check the checksum
|
|
* with options still present.
|
|
*/
|
|
if (iphlen > sizeof (struct ip)) {
|
|
ip_stripoptions(m, (struct mbuf *)0);
|
|
iphlen = sizeof(struct ip);
|
|
}
|
|
|
|
/*
|
|
* Get IP and UDP header together in first mbuf.
|
|
*/
|
|
ip = mtod(m, struct ip *);
|
|
if (m->m_len < iphlen + sizeof(struct udphdr)) {
|
|
if ((m = m_pullup(m, iphlen + sizeof(struct udphdr))) == 0) {
|
|
udpstat.udps_hdrops++;
|
|
return;
|
|
}
|
|
ip = mtod(m, struct ip *);
|
|
}
|
|
uh = (struct udphdr *)((caddr_t)ip + iphlen);
|
|
|
|
/*
|
|
* Make mbuf data length reflect UDP length.
|
|
* If not enough data to reflect UDP length, drop.
|
|
*/
|
|
len = ntohs((u_short)uh->uh_ulen);
|
|
if (ip->ip_len != len) {
|
|
if (len > ip->ip_len || len < sizeof(struct udphdr)) {
|
|
udpstat.udps_badlen++;
|
|
goto bad;
|
|
}
|
|
m_adj(m, len - ip->ip_len);
|
|
/* ip->ip_len = len; */
|
|
}
|
|
/*
|
|
* Save a copy of the IP header in case we want restore it
|
|
* for sending an ICMP error message in response.
|
|
*/
|
|
save_ip = *ip;
|
|
|
|
/*
|
|
* Checksum extended UDP header and data.
|
|
*/
|
|
if (uh->uh_sum) {
|
|
((struct ipovly *)ip)->ih_next = 0;
|
|
((struct ipovly *)ip)->ih_prev = 0;
|
|
((struct ipovly *)ip)->ih_x1 = 0;
|
|
((struct ipovly *)ip)->ih_len = uh->uh_ulen;
|
|
uh->uh_sum = in_cksum(m, len + sizeof (struct ip));
|
|
if (uh->uh_sum) {
|
|
udpstat.udps_badsum++;
|
|
m_freem(m);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr)) ||
|
|
in_broadcast(ip->ip_dst, m->m_pkthdr.rcvif)) {
|
|
struct inpcb *last;
|
|
/*
|
|
* Deliver a multicast or broadcast datagram to *all* sockets
|
|
* for which the local and remote addresses and ports match
|
|
* those of the incoming datagram. This allows more than
|
|
* one process to receive multi/broadcasts on the same port.
|
|
* (This really ought to be done for unicast datagrams as
|
|
* well, but that would cause problems with existing
|
|
* applications that open both address-specific sockets and
|
|
* a wildcard socket listening to the same port -- they would
|
|
* end up receiving duplicates of every unicast datagram.
|
|
* Those applications open the multiple sockets to overcome an
|
|
* inadequacy of the UDP socket interface, but for backwards
|
|
* compatibility we avoid the problem here rather than
|
|
* fixing the interface. Maybe 4.5BSD will remedy this?)
|
|
*/
|
|
|
|
/*
|
|
* Construct sockaddr format source address.
|
|
*/
|
|
udp_in.sin_port = uh->uh_sport;
|
|
udp_in.sin_addr = ip->ip_src;
|
|
m->m_len -= sizeof (struct udpiphdr);
|
|
m->m_data += sizeof (struct udpiphdr);
|
|
/*
|
|
* Locate pcb(s) for datagram.
|
|
* (Algorithm copied from raw_intr().)
|
|
*/
|
|
last = NULL;
|
|
for (inp = udb.lh_first; inp != NULL; inp = inp->inp_list.le_next) {
|
|
if (inp->inp_lport != uh->uh_dport)
|
|
continue;
|
|
if (inp->inp_laddr.s_addr != INADDR_ANY) {
|
|
if (inp->inp_laddr.s_addr !=
|
|
ip->ip_dst.s_addr)
|
|
continue;
|
|
}
|
|
if (inp->inp_faddr.s_addr != INADDR_ANY) {
|
|
if (inp->inp_faddr.s_addr !=
|
|
ip->ip_src.s_addr ||
|
|
inp->inp_fport != uh->uh_sport)
|
|
continue;
|
|
}
|
|
|
|
if (last != NULL) {
|
|
struct mbuf *n;
|
|
|
|
if ((n = m_copy(m, 0, M_COPYALL)) != NULL) {
|
|
if (last->inp_flags & INP_CONTROLOPTS
|
|
|| last->inp_socket->so_options & SO_TIMESTAMP)
|
|
ip_savecontrol(last, &opts, ip, n);
|
|
if (sbappendaddr(&last->inp_socket->so_rcv,
|
|
(struct sockaddr *)&udp_in,
|
|
n, opts) == 0) {
|
|
m_freem(n);
|
|
if (opts)
|
|
m_freem(opts);
|
|
udpstat.udps_fullsock++;
|
|
} else
|
|
sorwakeup(last->inp_socket);
|
|
opts = 0;
|
|
}
|
|
}
|
|
last = inp;
|
|
/*
|
|
* Don't look for additional matches if this one does
|
|
* not have either the SO_REUSEPORT or SO_REUSEADDR
|
|
* socket options set. This heuristic avoids searching
|
|
* through all pcbs in the common case of a non-shared
|
|
* port. It * assumes that an application will never
|
|
* clear these options after setting them.
|
|
*/
|
|
if ((last->inp_socket->so_options&(SO_REUSEPORT|SO_REUSEADDR) == 0))
|
|
break;
|
|
}
|
|
|
|
if (last == NULL) {
|
|
/*
|
|
* No matching pcb found; discard datagram.
|
|
* (No need to send an ICMP Port Unreachable
|
|
* for a broadcast or multicast datgram.)
|
|
*/
|
|
udpstat.udps_noportbcast++;
|
|
goto bad;
|
|
}
|
|
if (last->inp_flags & INP_CONTROLOPTS
|
|
|| last->inp_socket->so_options & SO_TIMESTAMP)
|
|
ip_savecontrol(last, &opts, ip, m);
|
|
if (sbappendaddr(&last->inp_socket->so_rcv,
|
|
(struct sockaddr *)&udp_in,
|
|
m, opts) == 0) {
|
|
udpstat.udps_fullsock++;
|
|
goto bad;
|
|
}
|
|
sorwakeup(last->inp_socket);
|
|
return;
|
|
}
|
|
/*
|
|
* Locate pcb for datagram.
|
|
*/
|
|
inp = in_pcblookuphash(&udbinfo, ip->ip_src, uh->uh_sport,
|
|
ip->ip_dst, uh->uh_dport, 1);
|
|
if (inp == NULL) {
|
|
if (log_in_vain) {
|
|
char buf[4*sizeof "123"];
|
|
|
|
strcpy(buf, inet_ntoa(ip->ip_dst));
|
|
log(LOG_INFO, "Connection attempt to UDP %s:%d"
|
|
" from %s:%d\n",
|
|
buf, ntohs(uh->uh_dport),
|
|
inet_ntoa(ip->ip_src), ntohs(uh->uh_sport));
|
|
}
|
|
udpstat.udps_noport++;
|
|
if (m->m_flags & (M_BCAST | M_MCAST)) {
|
|
udpstat.udps_noportbcast++;
|
|
goto bad;
|
|
}
|
|
*ip = save_ip;
|
|
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Construct sockaddr format source address.
|
|
* Stuff source address and datagram in user buffer.
|
|
*/
|
|
udp_in.sin_port = uh->uh_sport;
|
|
udp_in.sin_addr = ip->ip_src;
|
|
if (inp->inp_flags & INP_CONTROLOPTS
|
|
|| inp->inp_socket->so_options & SO_TIMESTAMP)
|
|
ip_savecontrol(inp, &opts, ip, m);
|
|
iphlen += sizeof(struct udphdr);
|
|
m->m_len -= iphlen;
|
|
m->m_pkthdr.len -= iphlen;
|
|
m->m_data += iphlen;
|
|
if (sbappendaddr(&inp->inp_socket->so_rcv, (struct sockaddr *)&udp_in,
|
|
m, opts) == 0) {
|
|
udpstat.udps_fullsock++;
|
|
goto bad;
|
|
}
|
|
sorwakeup(inp->inp_socket);
|
|
return;
|
|
bad:
|
|
m_freem(m);
|
|
if (opts)
|
|
m_freem(opts);
|
|
}
|
|
|
|
/*
|
|
* Notify a udp user of an asynchronous error;
|
|
* just wake up so that he can collect error status.
|
|
*/
|
|
static void
|
|
udp_notify(inp, errno)
|
|
register struct inpcb *inp;
|
|
int errno;
|
|
{
|
|
inp->inp_socket->so_error = errno;
|
|
sorwakeup(inp->inp_socket);
|
|
sowwakeup(inp->inp_socket);
|
|
}
|
|
|
|
void
|
|
udp_ctlinput(cmd, sa, vip)
|
|
int cmd;
|
|
struct sockaddr *sa;
|
|
void *vip;
|
|
{
|
|
register struct ip *ip = vip;
|
|
register struct udphdr *uh;
|
|
|
|
if (!PRC_IS_REDIRECT(cmd) &&
|
|
((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0))
|
|
return;
|
|
if (ip) {
|
|
uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2));
|
|
in_pcbnotify(&udb, sa, uh->uh_dport, ip->ip_src, uh->uh_sport,
|
|
cmd, udp_notify);
|
|
} else
|
|
in_pcbnotify(&udb, sa, 0, zeroin_addr, 0, cmd, udp_notify);
|
|
}
|
|
|
|
static int
|
|
udp_output(inp, m, addr, control, p)
|
|
register struct inpcb *inp;
|
|
register struct mbuf *m;
|
|
struct sockaddr *addr;
|
|
struct mbuf *control;
|
|
struct proc *p;
|
|
{
|
|
register struct udpiphdr *ui;
|
|
register int len = m->m_pkthdr.len;
|
|
struct in_addr laddr;
|
|
int s = 0, error = 0;
|
|
|
|
if (control)
|
|
m_freem(control); /* XXX */
|
|
|
|
if (len + sizeof(struct udpiphdr) > IP_MAXPACKET) {
|
|
error = EMSGSIZE;
|
|
goto release;
|
|
}
|
|
|
|
if (addr) {
|
|
laddr = inp->inp_laddr;
|
|
if (inp->inp_faddr.s_addr != INADDR_ANY) {
|
|
error = EISCONN;
|
|
goto release;
|
|
}
|
|
/*
|
|
* Must block input while temporarily connected.
|
|
*/
|
|
s = splnet();
|
|
error = in_pcbconnect(inp, addr, p);
|
|
if (error) {
|
|
splx(s);
|
|
goto release;
|
|
}
|
|
} else {
|
|
if (inp->inp_faddr.s_addr == INADDR_ANY) {
|
|
error = ENOTCONN;
|
|
goto release;
|
|
}
|
|
}
|
|
/*
|
|
* Calculate data length and get a mbuf
|
|
* for UDP and IP headers.
|
|
*/
|
|
M_PREPEND(m, sizeof(struct udpiphdr), M_DONTWAIT);
|
|
if (m == 0) {
|
|
error = ENOBUFS;
|
|
if (addr)
|
|
splx(s);
|
|
goto release;
|
|
}
|
|
|
|
/*
|
|
* Fill in mbuf with extended UDP header
|
|
* and addresses and length put into network format.
|
|
*/
|
|
ui = mtod(m, struct udpiphdr *);
|
|
ui->ui_next = ui->ui_prev = 0;
|
|
ui->ui_x1 = 0;
|
|
ui->ui_pr = IPPROTO_UDP;
|
|
ui->ui_len = htons((u_short)len + sizeof (struct udphdr));
|
|
ui->ui_src = inp->inp_laddr;
|
|
ui->ui_dst = inp->inp_faddr;
|
|
ui->ui_sport = inp->inp_lport;
|
|
ui->ui_dport = inp->inp_fport;
|
|
ui->ui_ulen = ui->ui_len;
|
|
|
|
/*
|
|
* Stuff checksum and output datagram.
|
|
*/
|
|
ui->ui_sum = 0;
|
|
if (udpcksum) {
|
|
if ((ui->ui_sum = in_cksum(m, sizeof (struct udpiphdr) + len)) == 0)
|
|
ui->ui_sum = 0xffff;
|
|
}
|
|
((struct ip *)ui)->ip_len = sizeof (struct udpiphdr) + len;
|
|
((struct ip *)ui)->ip_ttl = inp->inp_ip_ttl; /* XXX */
|
|
((struct ip *)ui)->ip_tos = inp->inp_ip_tos; /* XXX */
|
|
udpstat.udps_opackets++;
|
|
error = ip_output(m, inp->inp_options, &inp->inp_route,
|
|
inp->inp_socket->so_options & (SO_DONTROUTE | SO_BROADCAST),
|
|
inp->inp_moptions);
|
|
|
|
if (addr) {
|
|
in_pcbdisconnect(inp);
|
|
inp->inp_laddr = laddr; /* XXX rehash? */
|
|
splx(s);
|
|
}
|
|
return (error);
|
|
|
|
release:
|
|
m_freem(m);
|
|
return (error);
|
|
}
|
|
|
|
static u_long udp_sendspace = 9216; /* really max datagram size */
|
|
/* 40 1K datagrams */
|
|
SYSCTL_INT(_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW,
|
|
&udp_sendspace, 0, "");
|
|
|
|
static u_long udp_recvspace = 40 * (1024 + sizeof(struct sockaddr_in));
|
|
SYSCTL_INT(_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW,
|
|
&udp_recvspace, 0, "");
|
|
|
|
static int
|
|
udp_abort(struct socket *so)
|
|
{
|
|
struct inpcb *inp;
|
|
int s;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL; /* ??? possible? panic instead? */
|
|
soisdisconnected(so);
|
|
s = splnet();
|
|
in_pcbdetach(inp);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
udp_attach(struct socket *so, int proto, struct proc *p)
|
|
{
|
|
struct inpcb *inp;
|
|
int s, error;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp != 0)
|
|
return EINVAL;
|
|
|
|
s = splnet();
|
|
error = in_pcballoc(so, &udbinfo, p);
|
|
splx(s);
|
|
if (error)
|
|
return error;
|
|
error = soreserve(so, udp_sendspace, udp_recvspace);
|
|
if (error)
|
|
return error;
|
|
((struct inpcb *) so->so_pcb)->inp_ip_ttl = ip_defttl;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
udp_bind(struct socket *so, struct sockaddr *nam, struct proc *p)
|
|
{
|
|
struct inpcb *inp;
|
|
int s, error;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
s = splnet();
|
|
error = in_pcbbind(inp, nam, p);
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
udp_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
|
|
{
|
|
struct inpcb *inp;
|
|
int s, error;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
if (inp->inp_faddr.s_addr != INADDR_ANY)
|
|
return EISCONN;
|
|
s = splnet();
|
|
error = in_pcbconnect(inp, nam, p);
|
|
splx(s);
|
|
if (error == 0)
|
|
soisconnected(so);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
udp_detach(struct socket *so)
|
|
{
|
|
struct inpcb *inp;
|
|
int s;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
s = splnet();
|
|
in_pcbdetach(inp);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
udp_disconnect(struct socket *so)
|
|
{
|
|
struct inpcb *inp;
|
|
int s;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
if (inp->inp_faddr.s_addr == INADDR_ANY)
|
|
return ENOTCONN;
|
|
|
|
s = splnet();
|
|
in_pcbdisconnect(inp);
|
|
inp->inp_laddr.s_addr = INADDR_ANY;
|
|
splx(s);
|
|
so->so_state &= ~SS_ISCONNECTED; /* XXX */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
udp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
|
|
struct mbuf *control, struct proc *p)
|
|
{
|
|
struct inpcb *inp;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0) {
|
|
m_freem(m);
|
|
return EINVAL;
|
|
}
|
|
return udp_output(inp, m, addr, control, p);
|
|
}
|
|
|
|
static int
|
|
udp_shutdown(struct socket *so)
|
|
{
|
|
struct inpcb *inp;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
return EINVAL;
|
|
socantsendmore(so);
|
|
return 0;
|
|
}
|
|
|
|
struct pr_usrreqs udp_usrreqs = {
|
|
udp_abort, pru_accept_notsupp, udp_attach, udp_bind, udp_connect,
|
|
pru_connect2_notsupp, in_control, udp_detach, udp_disconnect,
|
|
pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp,
|
|
pru_rcvoob_notsupp, udp_send, pru_sense_null, udp_shutdown,
|
|
in_setsockaddr, sosend, soreceive, soselect
|
|
};
|