mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-29 19:43:41 +00:00
Fix the mechanism for choosing wehether to save the slow-start threshold
in the route. This allows us to remove the unconditional setting of the pipesize in the route, which should mean that SO_SNDBUF and SO_RCVBUF should actually work again. While we're at it: - Convert udp_usrreq from `mondo switch statement from Hell' to new-style. - Delete old TCP mondo switch statement from Hell, which had previously been diked out.
This commit is contained in:
Garrett Wollman
parent
4a26224c8d
commit
d0390e0570
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=22719
@ -105,8 +105,9 @@ struct protosw inetsw[] = {
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},
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{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
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udp_input, 0, udp_ctlinput, ip_ctloutput,
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udp_usrreq,
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udp_init
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0,
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udp_init, 0, 0, 0,
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&udp_usrreqs
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},
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{ SOCK_STREAM, &inetdomain, IPPROTO_TCP,
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PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
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@ -26,7 +26,7 @@
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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* $Id: in_rmx.c,v 1.28 1997/02/13 19:46:41 wollman Exp $
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*/
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/*
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@ -119,23 +119,6 @@ in_addroute(void *v_arg, void *n_arg, struct radix_node_head *head,
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}
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}
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/*
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* We also specify a send and receive pipe size for every
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* route added, to help TCP a bit. TCP doesn't actually
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* want a true pipe size, which would be prohibitive in memory
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* costs and is hard to compute anyway; it simply uses these
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* values to size its buffers. So, we fill them in with the
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* same values that TCP would have used anyway, and allow the
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* installing program or the link layer to override these values
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* as it sees fit. This will hopefully allow TCP more
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* opportunities to save its ssthresh value.
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*/
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if (!rt->rt_rmx.rmx_sendpipe && !(rt->rt_rmx.rmx_locks & RTV_SPIPE))
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rt->rt_rmx.rmx_sendpipe = tcp_sendspace;
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if (!rt->rt_rmx.rmx_recvpipe && !(rt->rt_rmx.rmx_locks & RTV_RPIPE))
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rt->rt_rmx.rmx_recvpipe = tcp_recvspace;
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if (!rt->rt_rmx.rmx_mtu && !(rt->rt_rmx.rmx_locks & RTV_MTU)
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&& rt->rt_ifp)
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rt->rt_rmx.rmx_mtu = rt->rt_ifp->if_mtu;
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@ -320,6 +320,7 @@ tcp_close(tp)
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struct socket *so = inp->inp_socket;
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register struct mbuf *m;
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register struct rtentry *rt;
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int dosavessthresh;
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/*
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* If we got enough samples through the srtt filter,
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@ -364,15 +365,31 @@ tcp_close(tp)
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tcpstat.tcps_cachedrttvar++;
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}
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/*
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* The old comment here said:
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* update the pipelimit (ssthresh) if it has been updated
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* already or if a pipesize was specified & the threshhold
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* got below half the pipesize. I.e., wait for bad news
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* before we start updating, then update on both good
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* and bad news.
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*
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* But we want to save the ssthresh even if no pipesize is
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* specified explicitly in the route, because such
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* connections still have an implicit pipesize specified
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* by the global tcp_sendspace. In the absence of a reliable
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* way to calculate the pipesize, it will have to do.
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*/
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i = tp->snd_ssthresh;
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#if 1
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if (rt->rt_rmx.rmx_sendpipe != 0)
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dosavessthresh = (i < rt->rt_rmx.rmx_sendpipe / 2);
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else
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dosavessthresh = (i < so->so_snd.sb_hiwat / 2);
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#else
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dosavessthresh = (i < rt->rt_rmx.rmx_sendpipe / 2);
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#endif
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if (((rt->rt_rmx.rmx_locks & RTV_SSTHRESH) == 0 &&
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((i = tp->snd_ssthresh) != 0) && rt->rt_rmx.rmx_ssthresh) ||
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i < (rt->rt_rmx.rmx_sendpipe / 2)) {
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i != 0 && rt->rt_rmx.rmx_ssthresh != 0)
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|| dosavessthresh) {
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/*
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* convert the limit from user data bytes to
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* packets then to packet data bytes.
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@ -320,6 +320,7 @@ tcp_close(tp)
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struct socket *so = inp->inp_socket;
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register struct mbuf *m;
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register struct rtentry *rt;
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int dosavessthresh;
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/*
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* If we got enough samples through the srtt filter,
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@ -364,15 +365,31 @@ tcp_close(tp)
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tcpstat.tcps_cachedrttvar++;
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}
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/*
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* The old comment here said:
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* update the pipelimit (ssthresh) if it has been updated
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* already or if a pipesize was specified & the threshhold
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* got below half the pipesize. I.e., wait for bad news
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* before we start updating, then update on both good
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* and bad news.
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*
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* But we want to save the ssthresh even if no pipesize is
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* specified explicitly in the route, because such
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* connections still have an implicit pipesize specified
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* by the global tcp_sendspace. In the absence of a reliable
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* way to calculate the pipesize, it will have to do.
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*/
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i = tp->snd_ssthresh;
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#if 1
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if (rt->rt_rmx.rmx_sendpipe != 0)
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dosavessthresh = (i < rt->rt_rmx.rmx_sendpipe / 2);
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else
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dosavessthresh = (i < so->so_snd.sb_hiwat / 2);
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#else
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dosavessthresh = (i < rt->rt_rmx.rmx_sendpipe / 2);
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#endif
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if (((rt->rt_rmx.rmx_locks & RTV_SSTHRESH) == 0 &&
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((i = tp->snd_ssthresh) != 0) && rt->rt_rmx.rmx_ssthresh) ||
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i < (rt->rt_rmx.rmx_sendpipe / 2)) {
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i != 0 && rt->rt_rmx.rmx_ssthresh != 0)
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|| dosavessthresh) {
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/*
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* convert the limit from user data bytes to
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* packets then to packet data bytes.
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@ -78,323 +78,6 @@ static struct tcpcb *
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static struct tcpcb *
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tcp_usrclosed __P((struct tcpcb *));
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#ifdef notdef
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/*
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* Process a TCP user request for TCP tb. If this is a send request
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* then m is the mbuf chain of send data. If this is a timer expiration
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* (called from the software clock routine), then timertype tells which timer.
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*/
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/*ARGSUSED*/
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int
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tcp_usrreq(so, req, m, nam, control)
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struct socket *so;
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int req;
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struct mbuf *m, *nam, *control;
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{
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register struct inpcb *inp;
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register struct tcpcb *tp = 0;
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struct sockaddr_in *sinp;
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int s;
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int error = 0;
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#ifdef TCPDEBUG
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int ostate;
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#endif
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if (req == PRU_CONTROL)
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return (in_control(so, (u_long)m, (caddr_t)nam,
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(struct ifnet *)control));
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if (control && control->m_len) {
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m_freem(control);
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if (m)
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m_freem(m);
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return (EINVAL);
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}
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s = splnet();
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inp = sotoinpcb(so);
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/*
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* When a TCP is attached to a socket, then there will be
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* a (struct inpcb) pointed at by the socket, and this
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* structure will point at a subsidary (struct tcpcb).
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*/
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if (inp == 0 && req != PRU_ATTACH) {
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splx(s);
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#if 0
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/*
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* The following corrects an mbuf leak under rare
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* circumstances, but has not been fully tested.
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*/
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if (m && req != PRU_SENSE)
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m_freem(m);
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#else
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/* safer version of fix for mbuf leak */
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if (m && (req == PRU_SEND || req == PRU_SENDOOB))
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m_freem(m);
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#endif
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return (EINVAL); /* XXX */
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}
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if (inp) {
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tp = intotcpcb(inp);
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/* WHAT IF TP IS 0? */
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#ifdef KPROF
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tcp_acounts[tp->t_state][req]++;
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#endif
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#ifdef TCPDEBUG
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ostate = tp->t_state;
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} else
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ostate = 0;
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#else /* TCPDEBUG */
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}
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#endif /* TCPDEBUG */
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switch (req) {
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/*
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* TCP attaches to socket via PRU_ATTACH, reserving space,
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* and an internet control block.
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*/
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case PRU_ATTACH:
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if (inp) {
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error = EISCONN;
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break;
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}
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error = tcp_attach(so);
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if (error)
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break;
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if ((so->so_options & SO_LINGER) && so->so_linger == 0)
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so->so_linger = TCP_LINGERTIME * hz;
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tp = sototcpcb(so);
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break;
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/*
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* PRU_DETACH detaches the TCP protocol from the socket.
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* If the protocol state is non-embryonic, then can't
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* do this directly: have to initiate a PRU_DISCONNECT,
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* which may finish later; embryonic TCB's can just
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* be discarded here.
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*/
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case PRU_DETACH:
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if (tp->t_state > TCPS_LISTEN)
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tp = tcp_disconnect(tp);
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else
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tp = tcp_close(tp);
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break;
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/*
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* Give the socket an address.
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*/
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case PRU_BIND:
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/*
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* Must check for multicast addresses and disallow binding
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* to them.
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*/
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sinp = mtod(nam, struct sockaddr_in *);
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if (sinp->sin_family == AF_INET &&
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IN_MULTICAST(ntohl(sinp->sin_addr.s_addr))) {
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error = EAFNOSUPPORT;
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break;
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}
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error = in_pcbbind(inp, nam);
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if (error)
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break;
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break;
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/*
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* Prepare to accept connections.
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*/
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case PRU_LISTEN:
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if (inp->inp_lport == 0)
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error = in_pcbbind(inp, NULL);
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if (error == 0)
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tp->t_state = TCPS_LISTEN;
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break;
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/*
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* Initiate connection to peer.
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* Create a template for use in transmissions on this connection.
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* Enter SYN_SENT state, and mark socket as connecting.
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* Start keep-alive timer, and seed output sequence space.
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* Send initial segment on connection.
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*/
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case PRU_CONNECT:
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/*
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* Must disallow TCP ``connections'' to multicast addresses.
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*/
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sinp = mtod(nam, struct sockaddr_in *);
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if (sinp->sin_family == AF_INET
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&& IN_MULTICAST(ntohl(sinp->sin_addr.s_addr))) {
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error = EAFNOSUPPORT;
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break;
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}
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if ((error = tcp_connect(tp, nam)) != 0)
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break;
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error = tcp_output(tp);
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break;
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/*
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* Create a TCP connection between two sockets.
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*/
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case PRU_CONNECT2:
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error = EOPNOTSUPP;
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break;
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/*
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* Initiate disconnect from peer.
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* If connection never passed embryonic stage, just drop;
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* else if don't need to let data drain, then can just drop anyways,
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* else have to begin TCP shutdown process: mark socket disconnecting,
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* drain unread data, state switch to reflect user close, and
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* send segment (e.g. FIN) to peer. Socket will be really disconnected
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* when peer sends FIN and acks ours.
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*
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* SHOULD IMPLEMENT LATER PRU_CONNECT VIA REALLOC TCPCB.
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*/
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case PRU_DISCONNECT:
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tp = tcp_disconnect(tp);
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break;
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/*
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* Accept a connection. Essentially all the work is
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* done at higher levels; just return the address
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* of the peer, storing through addr.
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*/
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case PRU_ACCEPT:
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in_setpeeraddr(inp, nam);
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break;
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/*
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* Mark the connection as being incapable of further output.
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*/
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case PRU_SHUTDOWN:
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socantsendmore(so);
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tp = tcp_usrclosed(tp);
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if (tp)
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error = tcp_output(tp);
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break;
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/*
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* After a receive, possibly send window update to peer.
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*/
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case PRU_RCVD:
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(void) tcp_output(tp);
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break;
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/*
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* Do a send by putting data in output queue and updating urgent
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* marker if URG set. Possibly send more data.
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*/
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case PRU_SEND_EOF:
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case PRU_SEND:
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sbappend(&so->so_snd, m);
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if (nam && tp->t_state < TCPS_SYN_SENT) {
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/*
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* Do implied connect if not yet connected,
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* initialize window to default value, and
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* initialize maxseg/maxopd using peer's cached
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* MSS.
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*/
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error = tcp_connect(tp, nam);
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if (error)
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break;
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tp->snd_wnd = TTCP_CLIENT_SND_WND;
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tcp_mss(tp, -1);
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}
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if (req == PRU_SEND_EOF) {
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/*
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* Close the send side of the connection after
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* the data is sent.
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*/
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socantsendmore(so);
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tp = tcp_usrclosed(tp);
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}
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if (tp != NULL)
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error = tcp_output(tp);
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break;
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/*
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* Abort the TCP.
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*/
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case PRU_ABORT:
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tp = tcp_drop(tp, ECONNABORTED);
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break;
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case PRU_SENSE:
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((struct stat *) m)->st_blksize = so->so_snd.sb_hiwat;
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(void) splx(s);
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return (0);
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case PRU_RCVOOB:
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if ((so->so_oobmark == 0 &&
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(so->so_state & SS_RCVATMARK) == 0) ||
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so->so_options & SO_OOBINLINE ||
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tp->t_oobflags & TCPOOB_HADDATA) {
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error = EINVAL;
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break;
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}
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if ((tp->t_oobflags & TCPOOB_HAVEDATA) == 0) {
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error = EWOULDBLOCK;
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break;
|
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}
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m->m_len = 1;
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*mtod(m, caddr_t) = tp->t_iobc;
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if (((int)nam & MSG_PEEK) == 0)
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tp->t_oobflags ^= (TCPOOB_HAVEDATA | TCPOOB_HADDATA);
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break;
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case PRU_SENDOOB:
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if (sbspace(&so->so_snd) < -512) {
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m_freem(m);
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error = ENOBUFS;
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break;
|
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}
|
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/*
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* According to RFC961 (Assigned Protocols),
|
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* the urgent pointer points to the last octet
|
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* of urgent data. We continue, however,
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* to consider it to indicate the first octet
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* of data past the urgent section.
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* Otherwise, snd_up should be one lower.
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*/
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sbappend(&so->so_snd, m);
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tp->snd_up = tp->snd_una + so->so_snd.sb_cc;
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tp->t_force = 1;
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error = tcp_output(tp);
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tp->t_force = 0;
|
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break;
|
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|
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case PRU_SOCKADDR:
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in_setsockaddr(inp, nam);
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break;
|
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case PRU_PEERADDR:
|
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in_setpeeraddr(inp, nam);
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break;
|
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|
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/*
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* TCP slow timer went off; going through this
|
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* routine for tracing's sake.
|
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*/
|
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case PRU_SLOWTIMO:
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tp = tcp_timers(tp, (int)nam);
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#ifdef TCPDEBUG
|
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req |= (int)nam << 8; /* for debug's sake */
|
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#endif
|
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break;
|
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|
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default:
|
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panic("tcp_usrreq");
|
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}
|
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#ifdef TCPDEBUG
|
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if (tp && (so->so_options & SO_DEBUG))
|
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tcp_trace(TA_USER, ostate, tp, (struct tcpiphdr *)0, req);
|
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#endif
|
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splx(s);
|
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return (error);
|
||||
}
|
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#endif
|
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|
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#ifdef TCPDEBUG
|
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#define TCPDEBUG0 int ostate
|
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#define TCPDEBUG1() ostate = tp ? tp->t_state : 0
|
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|
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@ -31,7 +31,7 @@
|
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* SUCH DAMAGE.
|
||||
*
|
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* @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95
|
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* $FreeBSD$
|
||||
* $Id$
|
||||
*/
|
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|
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#include <sys/param.h>
|
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@ -90,7 +90,6 @@ SYSCTL_STRUCT(_net_inet_udp, UDPCTL_STATS, stats, CTLFLAG_RD,
|
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|
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static struct sockaddr_in udp_in = { sizeof(udp_in), AF_INET };
|
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|
||||
static void udp_detach __P((struct inpcb *));
|
||||
static int udp_output __P((struct inpcb *, struct mbuf *, struct mbuf *,
|
||||
struct mbuf *));
|
||||
static void udp_notify __P((struct inpcb *, int));
|
||||
@ -464,150 +463,232 @@ static u_long udp_recvspace = 40 * (1024 + sizeof(struct sockaddr_in));
|
||||
SYSCTL_INT(_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW,
|
||||
&udp_recvspace, 0, "");
|
||||
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
udp_usrreq(so, req, m, addr, control)
|
||||
struct socket *so;
|
||||
int req;
|
||||
struct mbuf *m, *addr, *control;
|
||||
static int
|
||||
udp_abort(struct socket *so)
|
||||
{
|
||||
struct inpcb *inp = sotoinpcb(so);
|
||||
int error = 0;
|
||||
struct inpcb *inp;
|
||||
int s;
|
||||
|
||||
if (req == PRU_CONTROL)
|
||||
return (in_control(so, (u_long)m, (caddr_t)addr,
|
||||
(struct ifnet *)control));
|
||||
if (inp == NULL && req != PRU_ATTACH) {
|
||||
error = EINVAL;
|
||||
goto release;
|
||||
}
|
||||
/*
|
||||
* Note: need to block udp_input while changing
|
||||
* the udp pcb queue and/or pcb addresses.
|
||||
*/
|
||||
switch (req) {
|
||||
|
||||
case PRU_ATTACH:
|
||||
if (inp != NULL) {
|
||||
error = EINVAL;
|
||||
break;
|
||||
}
|
||||
s = splnet();
|
||||
error = in_pcballoc(so, &udbinfo);
|
||||
splx(s);
|
||||
if (error)
|
||||
break;
|
||||
error = soreserve(so, udp_sendspace, udp_recvspace);
|
||||
if (error)
|
||||
break;
|
||||
((struct inpcb *) so->so_pcb)->inp_ip.ip_ttl = ip_defttl;
|
||||
break;
|
||||
|
||||
case PRU_DETACH:
|
||||
udp_detach(inp);
|
||||
break;
|
||||
|
||||
case PRU_BIND:
|
||||
s = splnet();
|
||||
error = in_pcbbind(inp, addr);
|
||||
splx(s);
|
||||
break;
|
||||
|
||||
case PRU_LISTEN:
|
||||
error = EOPNOTSUPP;
|
||||
break;
|
||||
|
||||
case PRU_CONNECT:
|
||||
if (inp->inp_faddr.s_addr != INADDR_ANY) {
|
||||
error = EISCONN;
|
||||
break;
|
||||
}
|
||||
s = splnet();
|
||||
error = in_pcbconnect(inp, addr);
|
||||
splx(s);
|
||||
if (error == 0)
|
||||
soisconnected(so);
|
||||
break;
|
||||
|
||||
case PRU_CONNECT2:
|
||||
error = EOPNOTSUPP;
|
||||
break;
|
||||
|
||||
case PRU_ACCEPT:
|
||||
error = EOPNOTSUPP;
|
||||
break;
|
||||
|
||||
case PRU_DISCONNECT:
|
||||
if (inp->inp_faddr.s_addr == INADDR_ANY) {
|
||||
error = ENOTCONN;
|
||||
break;
|
||||
}
|
||||
s = splnet();
|
||||
in_pcbdisconnect(inp);
|
||||
inp->inp_laddr.s_addr = INADDR_ANY;
|
||||
splx(s);
|
||||
so->so_state &= ~SS_ISCONNECTED; /* XXX */
|
||||
break;
|
||||
|
||||
case PRU_SHUTDOWN:
|
||||
socantsendmore(so);
|
||||
break;
|
||||
|
||||
case PRU_SEND:
|
||||
return (udp_output(inp, m, addr, control));
|
||||
|
||||
case PRU_ABORT:
|
||||
soisdisconnected(so);
|
||||
udp_detach(inp);
|
||||
break;
|
||||
|
||||
case PRU_SOCKADDR:
|
||||
in_setsockaddr(inp, addr);
|
||||
break;
|
||||
|
||||
case PRU_PEERADDR:
|
||||
in_setpeeraddr(inp, addr);
|
||||
break;
|
||||
|
||||
case PRU_SENSE:
|
||||
/*
|
||||
* stat: don't bother with a blocksize.
|
||||
*/
|
||||
return (0);
|
||||
|
||||
case PRU_SENDOOB:
|
||||
case PRU_FASTTIMO:
|
||||
case PRU_SLOWTIMO:
|
||||
case PRU_PROTORCV:
|
||||
case PRU_PROTOSEND:
|
||||
error = EOPNOTSUPP;
|
||||
break;
|
||||
|
||||
case PRU_RCVD:
|
||||
case PRU_RCVOOB:
|
||||
return (EOPNOTSUPP); /* do not free mbuf's */
|
||||
|
||||
default:
|
||||
panic("udp_usrreq");
|
||||
}
|
||||
|
||||
release:
|
||||
if (control) {
|
||||
printf("udp control data unexpectedly retained\n");
|
||||
m_freem(control);
|
||||
}
|
||||
if (m)
|
||||
m_freem(m);
|
||||
return (error);
|
||||
}
|
||||
|
||||
static void
|
||||
udp_detach(inp)
|
||||
struct inpcb *inp;
|
||||
{
|
||||
int s = splnet();
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL; /* ??? possible? panic instead? */
|
||||
soisdisconnected(so);
|
||||
s = splnet();
|
||||
in_pcbdetach(inp);
|
||||
splx(s);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* XXX should be pru_accept_notsupp */
|
||||
static int
|
||||
udp_accept(struct socket *so, struct mbuf *nam)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
return EOPNOTSUPP;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_attach(struct socket *so, int proto)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
int s, error;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp != 0)
|
||||
return EINVAL;
|
||||
|
||||
s = splnet();
|
||||
error = in_pcballoc(so, &udbinfo);
|
||||
splx(s);
|
||||
if (error)
|
||||
return error;
|
||||
error = soreserve(so, udp_sendspace, udp_recvspace);
|
||||
if (error)
|
||||
return error;
|
||||
((struct inpcb *) so->so_pcb)->inp_ip.ip_ttl = ip_defttl;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_bind(struct socket *so, struct mbuf *nam)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
int s, error;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
s = splnet();
|
||||
error = in_pcbbind(inp, nam);
|
||||
splx(s);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_connect(struct socket *so, struct mbuf *nam)
|
||||
{
|
||||
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);
|
||||
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;
|
||||
}
|
||||
|
||||
/* should be pru_listen_notsupp */
|
||||
static int
|
||||
udp_listen(struct socket *so)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
return EOPNOTSUPP;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_peeraddr(struct socket *so, struct mbuf *nam)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
in_setpeeraddr(inp, nam);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* XXX should be pru_rcvd_notsupp */
|
||||
static int
|
||||
udp_rcvd(struct socket *so, int flags)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
return EOPNOTSUPP;
|
||||
}
|
||||
|
||||
/* XXX should be pru_rcvoob_notsupp */
|
||||
static int
|
||||
udp_rcvoob(struct socket *so, struct mbuf *m, int flags)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
return EOPNOTSUPP;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *addr,
|
||||
struct mbuf *control)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0) {
|
||||
m_freem(m);
|
||||
return EINVAL;
|
||||
}
|
||||
return udp_output(inp, m, addr, control);
|
||||
}
|
||||
|
||||
static int
|
||||
udp_sense(struct socket *so, struct stat *sb)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
return 0; /* xxx do something useful */
|
||||
}
|
||||
|
||||
static int
|
||||
udp_shutdown(struct socket *so)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
socantsendmore(so);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
udp_sockaddr(struct socket *so, struct mbuf *nam)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
return EINVAL;
|
||||
in_setsockaddr(inp, nam);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* XXX - should fix parameter types of in_control or of pru_control... */
|
||||
static int
|
||||
udp_control(struct socket *so, int cmd, caddr_t data, struct ifnet *ifp)
|
||||
{
|
||||
return in_control(so, cmd, data, ifp);
|
||||
}
|
||||
|
||||
struct pr_usrreqs udp_usrreqs = {
|
||||
udp_abort, udp_accept, udp_attach, udp_bind, udp_connect,
|
||||
pru_connect2_notsupp, udp_control, udp_detach, udp_disconnect,
|
||||
udp_listen, udp_peeraddr, udp_rcvd, udp_rcvoob, udp_send,
|
||||
udp_sense, udp_shutdown, udp_sockaddr
|
||||
};
|
||||
|
||||
@ -92,12 +92,11 @@ struct udpstat {
|
||||
extern struct inpcbhead udb;
|
||||
extern struct inpcbinfo udbinfo;
|
||||
extern struct udpstat udpstat;
|
||||
extern struct pr_usrreqs udp_usrreqs;
|
||||
|
||||
void udp_ctlinput __P((int, struct sockaddr *, void *));
|
||||
void udp_init __P((void));
|
||||
void udp_input __P((struct mbuf *, int));
|
||||
int udp_usrreq __P((struct socket *,
|
||||
int, struct mbuf *, struct mbuf *, struct mbuf *));
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user