mirror of
https://github.com/qemu/qemu.git
synced 2024-12-06 02:03:38 +08:00
ec530c81ef
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1855 c046a42c-6fe2-441c-8c8c-71466251a162
718 lines
17 KiB
C
718 lines
17 KiB
C
/*
|
|
* Copyright (c) 1995 Danny Gasparovski.
|
|
*
|
|
* Please read the file COPYRIGHT for the
|
|
* terms and conditions of the copyright.
|
|
*/
|
|
|
|
#define WANT_SYS_IOCTL_H
|
|
#include <slirp.h>
|
|
#include "ip_icmp.h"
|
|
#include "main.h"
|
|
#ifdef __sun__
|
|
#include <sys/filio.h>
|
|
#endif
|
|
|
|
void
|
|
so_init()
|
|
{
|
|
/* Nothing yet */
|
|
}
|
|
|
|
|
|
struct socket *
|
|
solookup(head, laddr, lport, faddr, fport)
|
|
struct socket *head;
|
|
struct in_addr laddr;
|
|
u_int lport;
|
|
struct in_addr faddr;
|
|
u_int fport;
|
|
{
|
|
struct socket *so;
|
|
|
|
for (so = head->so_next; so != head; so = so->so_next) {
|
|
if (so->so_lport == lport &&
|
|
so->so_laddr.s_addr == laddr.s_addr &&
|
|
so->so_faddr.s_addr == faddr.s_addr &&
|
|
so->so_fport == fport)
|
|
break;
|
|
}
|
|
|
|
if (so == head)
|
|
return (struct socket *)NULL;
|
|
return so;
|
|
|
|
}
|
|
|
|
/*
|
|
* Create a new socket, initialise the fields
|
|
* It is the responsibility of the caller to
|
|
* insque() it into the correct linked-list
|
|
*/
|
|
struct socket *
|
|
socreate()
|
|
{
|
|
struct socket *so;
|
|
|
|
so = (struct socket *)malloc(sizeof(struct socket));
|
|
if(so) {
|
|
memset(so, 0, sizeof(struct socket));
|
|
so->so_state = SS_NOFDREF;
|
|
so->s = -1;
|
|
}
|
|
return(so);
|
|
}
|
|
|
|
/*
|
|
* remque and free a socket, clobber cache
|
|
*/
|
|
void
|
|
sofree(so)
|
|
struct socket *so;
|
|
{
|
|
if (so->so_emu==EMU_RSH && so->extra) {
|
|
sofree(so->extra);
|
|
so->extra=NULL;
|
|
}
|
|
if (so == tcp_last_so)
|
|
tcp_last_so = &tcb;
|
|
else if (so == udp_last_so)
|
|
udp_last_so = &udb;
|
|
|
|
m_free(so->so_m);
|
|
|
|
if(so->so_next && so->so_prev)
|
|
remque(so); /* crashes if so is not in a queue */
|
|
|
|
free(so);
|
|
}
|
|
|
|
/*
|
|
* Read from so's socket into sb_snd, updating all relevant sbuf fields
|
|
* NOTE: This will only be called if it is select()ed for reading, so
|
|
* a read() of 0 (or less) means it's disconnected
|
|
*/
|
|
int
|
|
soread(so)
|
|
struct socket *so;
|
|
{
|
|
int n, nn, lss, total;
|
|
struct sbuf *sb = &so->so_snd;
|
|
int len = sb->sb_datalen - sb->sb_cc;
|
|
struct iovec iov[2];
|
|
int mss = so->so_tcpcb->t_maxseg;
|
|
|
|
DEBUG_CALL("soread");
|
|
DEBUG_ARG("so = %lx", (long )so);
|
|
|
|
/*
|
|
* No need to check if there's enough room to read.
|
|
* soread wouldn't have been called if there weren't
|
|
*/
|
|
|
|
len = sb->sb_datalen - sb->sb_cc;
|
|
|
|
iov[0].iov_base = sb->sb_wptr;
|
|
if (sb->sb_wptr < sb->sb_rptr) {
|
|
iov[0].iov_len = sb->sb_rptr - sb->sb_wptr;
|
|
/* Should never succeed, but... */
|
|
if (iov[0].iov_len > len)
|
|
iov[0].iov_len = len;
|
|
if (iov[0].iov_len > mss)
|
|
iov[0].iov_len -= iov[0].iov_len%mss;
|
|
n = 1;
|
|
} else {
|
|
iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_wptr;
|
|
/* Should never succeed, but... */
|
|
if (iov[0].iov_len > len) iov[0].iov_len = len;
|
|
len -= iov[0].iov_len;
|
|
if (len) {
|
|
iov[1].iov_base = sb->sb_data;
|
|
iov[1].iov_len = sb->sb_rptr - sb->sb_data;
|
|
if(iov[1].iov_len > len)
|
|
iov[1].iov_len = len;
|
|
total = iov[0].iov_len + iov[1].iov_len;
|
|
if (total > mss) {
|
|
lss = total%mss;
|
|
if (iov[1].iov_len > lss) {
|
|
iov[1].iov_len -= lss;
|
|
n = 2;
|
|
} else {
|
|
lss -= iov[1].iov_len;
|
|
iov[0].iov_len -= lss;
|
|
n = 1;
|
|
}
|
|
} else
|
|
n = 2;
|
|
} else {
|
|
if (iov[0].iov_len > mss)
|
|
iov[0].iov_len -= iov[0].iov_len%mss;
|
|
n = 1;
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_READV
|
|
nn = readv(so->s, (struct iovec *)iov, n);
|
|
DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn));
|
|
#else
|
|
nn = recv(so->s, iov[0].iov_base, iov[0].iov_len,0);
|
|
#endif
|
|
if (nn <= 0) {
|
|
if (nn < 0 && (errno == EINTR || errno == EAGAIN))
|
|
return 0;
|
|
else {
|
|
DEBUG_MISC((dfd, " --- soread() disconnected, nn = %d, errno = %d-%s\n", nn, errno,strerror(errno)));
|
|
sofcantrcvmore(so);
|
|
tcp_sockclosed(sototcpcb(so));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
#ifndef HAVE_READV
|
|
/*
|
|
* If there was no error, try and read the second time round
|
|
* We read again if n = 2 (ie, there's another part of the buffer)
|
|
* and we read as much as we could in the first read
|
|
* We don't test for <= 0 this time, because there legitimately
|
|
* might not be any more data (since the socket is non-blocking),
|
|
* a close will be detected on next iteration.
|
|
* A return of -1 wont (shouldn't) happen, since it didn't happen above
|
|
*/
|
|
if (n == 2 && nn == iov[0].iov_len) {
|
|
int ret;
|
|
ret = recv(so->s, iov[1].iov_base, iov[1].iov_len,0);
|
|
if (ret > 0)
|
|
nn += ret;
|
|
}
|
|
|
|
DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn));
|
|
#endif
|
|
|
|
/* Update fields */
|
|
sb->sb_cc += nn;
|
|
sb->sb_wptr += nn;
|
|
if (sb->sb_wptr >= (sb->sb_data + sb->sb_datalen))
|
|
sb->sb_wptr -= sb->sb_datalen;
|
|
return nn;
|
|
}
|
|
|
|
/*
|
|
* Get urgent data
|
|
*
|
|
* When the socket is created, we set it SO_OOBINLINE,
|
|
* so when OOB data arrives, we soread() it and everything
|
|
* in the send buffer is sent as urgent data
|
|
*/
|
|
void
|
|
sorecvoob(so)
|
|
struct socket *so;
|
|
{
|
|
struct tcpcb *tp = sototcpcb(so);
|
|
|
|
DEBUG_CALL("sorecvoob");
|
|
DEBUG_ARG("so = %lx", (long)so);
|
|
|
|
/*
|
|
* We take a guess at how much urgent data has arrived.
|
|
* In most situations, when urgent data arrives, the next
|
|
* read() should get all the urgent data. This guess will
|
|
* be wrong however if more data arrives just after the
|
|
* urgent data, or the read() doesn't return all the
|
|
* urgent data.
|
|
*/
|
|
soread(so);
|
|
tp->snd_up = tp->snd_una + so->so_snd.sb_cc;
|
|
tp->t_force = 1;
|
|
tcp_output(tp);
|
|
tp->t_force = 0;
|
|
}
|
|
|
|
/*
|
|
* Send urgent data
|
|
* There's a lot duplicated code here, but...
|
|
*/
|
|
int
|
|
sosendoob(so)
|
|
struct socket *so;
|
|
{
|
|
struct sbuf *sb = &so->so_rcv;
|
|
char buff[2048]; /* XXX Shouldn't be sending more oob data than this */
|
|
|
|
int n, len;
|
|
|
|
DEBUG_CALL("sosendoob");
|
|
DEBUG_ARG("so = %lx", (long)so);
|
|
DEBUG_ARG("sb->sb_cc = %d", sb->sb_cc);
|
|
|
|
if (so->so_urgc > 2048)
|
|
so->so_urgc = 2048; /* XXXX */
|
|
|
|
if (sb->sb_rptr < sb->sb_wptr) {
|
|
/* We can send it directly */
|
|
n = send(so->s, sb->sb_rptr, so->so_urgc, (MSG_OOB)); /* |MSG_DONTWAIT)); */
|
|
so->so_urgc -= n;
|
|
|
|
DEBUG_MISC((dfd, " --- sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc));
|
|
} else {
|
|
/*
|
|
* Since there's no sendv or sendtov like writev,
|
|
* we must copy all data to a linear buffer then
|
|
* send it all
|
|
*/
|
|
len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr;
|
|
if (len > so->so_urgc) len = so->so_urgc;
|
|
memcpy(buff, sb->sb_rptr, len);
|
|
so->so_urgc -= len;
|
|
if (so->so_urgc) {
|
|
n = sb->sb_wptr - sb->sb_data;
|
|
if (n > so->so_urgc) n = so->so_urgc;
|
|
memcpy((buff + len), sb->sb_data, n);
|
|
so->so_urgc -= n;
|
|
len += n;
|
|
}
|
|
n = send(so->s, buff, len, (MSG_OOB)); /* |MSG_DONTWAIT)); */
|
|
#ifdef DEBUG
|
|
if (n != len)
|
|
DEBUG_ERROR((dfd, "Didn't send all data urgently XXXXX\n"));
|
|
#endif
|
|
DEBUG_MISC((dfd, " ---2 sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc));
|
|
}
|
|
|
|
sb->sb_cc -= n;
|
|
sb->sb_rptr += n;
|
|
if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen))
|
|
sb->sb_rptr -= sb->sb_datalen;
|
|
|
|
return n;
|
|
}
|
|
|
|
/*
|
|
* Write data from so_rcv to so's socket,
|
|
* updating all sbuf field as necessary
|
|
*/
|
|
int
|
|
sowrite(so)
|
|
struct socket *so;
|
|
{
|
|
int n,nn;
|
|
struct sbuf *sb = &so->so_rcv;
|
|
int len = sb->sb_cc;
|
|
struct iovec iov[2];
|
|
|
|
DEBUG_CALL("sowrite");
|
|
DEBUG_ARG("so = %lx", (long)so);
|
|
|
|
if (so->so_urgc) {
|
|
sosendoob(so);
|
|
if (sb->sb_cc == 0)
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* No need to check if there's something to write,
|
|
* sowrite wouldn't have been called otherwise
|
|
*/
|
|
|
|
len = sb->sb_cc;
|
|
|
|
iov[0].iov_base = sb->sb_rptr;
|
|
if (sb->sb_rptr < sb->sb_wptr) {
|
|
iov[0].iov_len = sb->sb_wptr - sb->sb_rptr;
|
|
/* Should never succeed, but... */
|
|
if (iov[0].iov_len > len) iov[0].iov_len = len;
|
|
n = 1;
|
|
} else {
|
|
iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr;
|
|
if (iov[0].iov_len > len) iov[0].iov_len = len;
|
|
len -= iov[0].iov_len;
|
|
if (len) {
|
|
iov[1].iov_base = sb->sb_data;
|
|
iov[1].iov_len = sb->sb_wptr - sb->sb_data;
|
|
if (iov[1].iov_len > len) iov[1].iov_len = len;
|
|
n = 2;
|
|
} else
|
|
n = 1;
|
|
}
|
|
/* Check if there's urgent data to send, and if so, send it */
|
|
|
|
#ifdef HAVE_READV
|
|
nn = writev(so->s, (const struct iovec *)iov, n);
|
|
|
|
DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn));
|
|
#else
|
|
nn = send(so->s, iov[0].iov_base, iov[0].iov_len,0);
|
|
#endif
|
|
/* This should never happen, but people tell me it does *shrug* */
|
|
if (nn < 0 && (errno == EAGAIN || errno == EINTR))
|
|
return 0;
|
|
|
|
if (nn <= 0) {
|
|
DEBUG_MISC((dfd, " --- sowrite disconnected, so->so_state = %x, errno = %d\n",
|
|
so->so_state, errno));
|
|
sofcantsendmore(so);
|
|
tcp_sockclosed(sototcpcb(so));
|
|
return -1;
|
|
}
|
|
|
|
#ifndef HAVE_READV
|
|
if (n == 2 && nn == iov[0].iov_len) {
|
|
int ret;
|
|
ret = send(so->s, iov[1].iov_base, iov[1].iov_len,0);
|
|
if (ret > 0)
|
|
nn += ret;
|
|
}
|
|
DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn));
|
|
#endif
|
|
|
|
/* Update sbuf */
|
|
sb->sb_cc -= nn;
|
|
sb->sb_rptr += nn;
|
|
if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen))
|
|
sb->sb_rptr -= sb->sb_datalen;
|
|
|
|
/*
|
|
* If in DRAIN mode, and there's no more data, set
|
|
* it CANTSENDMORE
|
|
*/
|
|
if ((so->so_state & SS_FWDRAIN) && sb->sb_cc == 0)
|
|
sofcantsendmore(so);
|
|
|
|
return nn;
|
|
}
|
|
|
|
/*
|
|
* recvfrom() a UDP socket
|
|
*/
|
|
void
|
|
sorecvfrom(so)
|
|
struct socket *so;
|
|
{
|
|
struct sockaddr_in addr;
|
|
int addrlen = sizeof(struct sockaddr_in);
|
|
|
|
DEBUG_CALL("sorecvfrom");
|
|
DEBUG_ARG("so = %lx", (long)so);
|
|
|
|
if (so->so_type == IPPROTO_ICMP) { /* This is a "ping" reply */
|
|
char buff[256];
|
|
int len;
|
|
|
|
len = recvfrom(so->s, buff, 256, 0,
|
|
(struct sockaddr *)&addr, &addrlen);
|
|
/* XXX Check if reply is "correct"? */
|
|
|
|
if(len == -1 || len == 0) {
|
|
u_char code=ICMP_UNREACH_PORT;
|
|
|
|
if(errno == EHOSTUNREACH) code=ICMP_UNREACH_HOST;
|
|
else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET;
|
|
|
|
DEBUG_MISC((dfd," udp icmp rx errno = %d-%s\n",
|
|
errno,strerror(errno)));
|
|
icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
|
|
} else {
|
|
icmp_reflect(so->so_m);
|
|
so->so_m = 0; /* Don't m_free() it again! */
|
|
}
|
|
/* No need for this socket anymore, udp_detach it */
|
|
udp_detach(so);
|
|
} else { /* A "normal" UDP packet */
|
|
struct mbuf *m;
|
|
int len, n;
|
|
|
|
if (!(m = m_get())) return;
|
|
m->m_data += if_maxlinkhdr;
|
|
|
|
/*
|
|
* XXX Shouldn't FIONREAD packets destined for port 53,
|
|
* but I don't know the max packet size for DNS lookups
|
|
*/
|
|
len = M_FREEROOM(m);
|
|
/* if (so->so_fport != htons(53)) { */
|
|
ioctlsocket(so->s, FIONREAD, &n);
|
|
|
|
if (n > len) {
|
|
n = (m->m_data - m->m_dat) + m->m_len + n + 1;
|
|
m_inc(m, n);
|
|
len = M_FREEROOM(m);
|
|
}
|
|
/* } */
|
|
|
|
m->m_len = recvfrom(so->s, m->m_data, len, 0,
|
|
(struct sockaddr *)&addr, &addrlen);
|
|
DEBUG_MISC((dfd, " did recvfrom %d, errno = %d-%s\n",
|
|
m->m_len, errno,strerror(errno)));
|
|
if(m->m_len<0) {
|
|
u_char code=ICMP_UNREACH_PORT;
|
|
|
|
if(errno == EHOSTUNREACH) code=ICMP_UNREACH_HOST;
|
|
else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET;
|
|
|
|
DEBUG_MISC((dfd," rx error, tx icmp ICMP_UNREACH:%i\n", code));
|
|
icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
|
|
m_free(m);
|
|
} else {
|
|
/*
|
|
* Hack: domain name lookup will be used the most for UDP,
|
|
* and since they'll only be used once there's no need
|
|
* for the 4 minute (or whatever) timeout... So we time them
|
|
* out much quicker (10 seconds for now...)
|
|
*/
|
|
if (so->so_expire) {
|
|
if (so->so_fport == htons(53))
|
|
so->so_expire = curtime + SO_EXPIREFAST;
|
|
else
|
|
so->so_expire = curtime + SO_EXPIRE;
|
|
}
|
|
|
|
/* if (m->m_len == len) {
|
|
* m_inc(m, MINCSIZE);
|
|
* m->m_len = 0;
|
|
* }
|
|
*/
|
|
|
|
/*
|
|
* If this packet was destined for CTL_ADDR,
|
|
* make it look like that's where it came from, done by udp_output
|
|
*/
|
|
udp_output(so, m, &addr);
|
|
} /* rx error */
|
|
} /* if ping packet */
|
|
}
|
|
|
|
/*
|
|
* sendto() a socket
|
|
*/
|
|
int
|
|
sosendto(so, m)
|
|
struct socket *so;
|
|
struct mbuf *m;
|
|
{
|
|
int ret;
|
|
struct sockaddr_in addr;
|
|
|
|
DEBUG_CALL("sosendto");
|
|
DEBUG_ARG("so = %lx", (long)so);
|
|
DEBUG_ARG("m = %lx", (long)m);
|
|
|
|
addr.sin_family = AF_INET;
|
|
if ((so->so_faddr.s_addr & htonl(0xffffff00)) == special_addr.s_addr) {
|
|
/* It's an alias */
|
|
switch(ntohl(so->so_faddr.s_addr) & 0xff) {
|
|
case CTL_DNS:
|
|
addr.sin_addr = dns_addr;
|
|
break;
|
|
case CTL_ALIAS:
|
|
default:
|
|
addr.sin_addr = loopback_addr;
|
|
break;
|
|
}
|
|
} else
|
|
addr.sin_addr = so->so_faddr;
|
|
addr.sin_port = so->so_fport;
|
|
|
|
DEBUG_MISC((dfd, " sendto()ing, addr.sin_port=%d, addr.sin_addr.s_addr=%.16s\n", ntohs(addr.sin_port), inet_ntoa(addr.sin_addr)));
|
|
|
|
/* Don't care what port we get */
|
|
ret = sendto(so->s, m->m_data, m->m_len, 0,
|
|
(struct sockaddr *)&addr, sizeof (struct sockaddr));
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
/*
|
|
* Kill the socket if there's no reply in 4 minutes,
|
|
* but only if it's an expirable socket
|
|
*/
|
|
if (so->so_expire)
|
|
so->so_expire = curtime + SO_EXPIRE;
|
|
so->so_state = SS_ISFCONNECTED; /* So that it gets select()ed */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* XXX This should really be tcp_listen
|
|
*/
|
|
struct socket *
|
|
solisten(port, laddr, lport, flags)
|
|
u_int port;
|
|
u_int32_t laddr;
|
|
u_int lport;
|
|
int flags;
|
|
{
|
|
struct sockaddr_in addr;
|
|
struct socket *so;
|
|
int s, addrlen = sizeof(addr), opt = 1;
|
|
|
|
DEBUG_CALL("solisten");
|
|
DEBUG_ARG("port = %d", port);
|
|
DEBUG_ARG("laddr = %x", laddr);
|
|
DEBUG_ARG("lport = %d", lport);
|
|
DEBUG_ARG("flags = %x", flags);
|
|
|
|
if ((so = socreate()) == NULL) {
|
|
/* free(so); Not sofree() ??? free(NULL) == NOP */
|
|
return NULL;
|
|
}
|
|
|
|
/* Don't tcp_attach... we don't need so_snd nor so_rcv */
|
|
if ((so->so_tcpcb = tcp_newtcpcb(so)) == NULL) {
|
|
free(so);
|
|
return NULL;
|
|
}
|
|
insque(so,&tcb);
|
|
|
|
/*
|
|
* SS_FACCEPTONCE sockets must time out.
|
|
*/
|
|
if (flags & SS_FACCEPTONCE)
|
|
so->so_tcpcb->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT*2;
|
|
|
|
so->so_state = (SS_FACCEPTCONN|flags);
|
|
so->so_lport = lport; /* Kept in network format */
|
|
so->so_laddr.s_addr = laddr; /* Ditto */
|
|
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_addr.s_addr = INADDR_ANY;
|
|
addr.sin_port = port;
|
|
|
|
if (((s = socket(AF_INET,SOCK_STREAM,0)) < 0) ||
|
|
(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
|
|
(bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
|
|
(listen(s,1) < 0)) {
|
|
int tmperrno = errno; /* Don't clobber the real reason we failed */
|
|
|
|
close(s);
|
|
sofree(so);
|
|
/* Restore the real errno */
|
|
#ifdef _WIN32
|
|
WSASetLastError(tmperrno);
|
|
#else
|
|
errno = tmperrno;
|
|
#endif
|
|
return NULL;
|
|
}
|
|
setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
|
|
|
|
getsockname(s,(struct sockaddr *)&addr,&addrlen);
|
|
so->so_fport = addr.sin_port;
|
|
if (addr.sin_addr.s_addr == 0 || addr.sin_addr.s_addr == loopback_addr.s_addr)
|
|
so->so_faddr = our_addr;
|
|
else
|
|
so->so_faddr = addr.sin_addr;
|
|
|
|
so->s = s;
|
|
return so;
|
|
}
|
|
|
|
/*
|
|
* Data is available in so_rcv
|
|
* Just write() the data to the socket
|
|
* XXX not yet...
|
|
*/
|
|
void
|
|
sorwakeup(so)
|
|
struct socket *so;
|
|
{
|
|
/* sowrite(so); */
|
|
/* FD_CLR(so->s,&writefds); */
|
|
}
|
|
|
|
/*
|
|
* Data has been freed in so_snd
|
|
* We have room for a read() if we want to
|
|
* For now, don't read, it'll be done in the main loop
|
|
*/
|
|
void
|
|
sowwakeup(so)
|
|
struct socket *so;
|
|
{
|
|
/* Nothing, yet */
|
|
}
|
|
|
|
/*
|
|
* Various session state calls
|
|
* XXX Should be #define's
|
|
* The socket state stuff needs work, these often get call 2 or 3
|
|
* times each when only 1 was needed
|
|
*/
|
|
void
|
|
soisfconnecting(so)
|
|
register struct socket *so;
|
|
{
|
|
so->so_state &= ~(SS_NOFDREF|SS_ISFCONNECTED|SS_FCANTRCVMORE|
|
|
SS_FCANTSENDMORE|SS_FWDRAIN);
|
|
so->so_state |= SS_ISFCONNECTING; /* Clobber other states */
|
|
}
|
|
|
|
void
|
|
soisfconnected(so)
|
|
register struct socket *so;
|
|
{
|
|
so->so_state &= ~(SS_ISFCONNECTING|SS_FWDRAIN|SS_NOFDREF);
|
|
so->so_state |= SS_ISFCONNECTED; /* Clobber other states */
|
|
}
|
|
|
|
void
|
|
sofcantrcvmore(so)
|
|
struct socket *so;
|
|
{
|
|
if ((so->so_state & SS_NOFDREF) == 0) {
|
|
shutdown(so->s,0);
|
|
if(global_writefds) {
|
|
FD_CLR(so->s,global_writefds);
|
|
}
|
|
}
|
|
so->so_state &= ~(SS_ISFCONNECTING);
|
|
if (so->so_state & SS_FCANTSENDMORE)
|
|
so->so_state = SS_NOFDREF; /* Don't select it */ /* XXX close() here as well? */
|
|
else
|
|
so->so_state |= SS_FCANTRCVMORE;
|
|
}
|
|
|
|
void
|
|
sofcantsendmore(so)
|
|
struct socket *so;
|
|
{
|
|
if ((so->so_state & SS_NOFDREF) == 0) {
|
|
shutdown(so->s,1); /* send FIN to fhost */
|
|
if (global_readfds) {
|
|
FD_CLR(so->s,global_readfds);
|
|
}
|
|
if (global_xfds) {
|
|
FD_CLR(so->s,global_xfds);
|
|
}
|
|
}
|
|
so->so_state &= ~(SS_ISFCONNECTING);
|
|
if (so->so_state & SS_FCANTRCVMORE)
|
|
so->so_state = SS_NOFDREF; /* as above */
|
|
else
|
|
so->so_state |= SS_FCANTSENDMORE;
|
|
}
|
|
|
|
void
|
|
soisfdisconnected(so)
|
|
struct socket *so;
|
|
{
|
|
/* so->so_state &= ~(SS_ISFCONNECTING|SS_ISFCONNECTED); */
|
|
/* close(so->s); */
|
|
/* so->so_state = SS_ISFDISCONNECTED; */
|
|
/*
|
|
* XXX Do nothing ... ?
|
|
*/
|
|
}
|
|
|
|
/*
|
|
* Set write drain mode
|
|
* Set CANTSENDMORE once all data has been write()n
|
|
*/
|
|
void
|
|
sofwdrain(so)
|
|
struct socket *so;
|
|
{
|
|
if (so->so_rcv.sb_cc)
|
|
so->so_state |= SS_FWDRAIN;
|
|
else
|
|
sofcantsendmore(so);
|
|
}
|
|
|