version 1.1.1.3, 1998/03/01 02:13:08 |
version 1.28, 1997/06/24 20:04:45 |
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/* $NetBSD$ */ |
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/* |
/* |
* Copyright (c) 1982, 1986, 1988, 1990, 1993 |
* Copyright (c) 1982, 1986, 1988, 1990, 1993 |
* The Regents of the University of California. All rights reserved. |
* The Regents of the University of California. All rights reserved. |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
* |
* |
* @(#)uipc_socket.c 8.6 (Berkeley) 5/2/95 |
* @(#)uipc_socket.c 8.3 (Berkeley) 4/15/94 |
*/ |
*/ |
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#include <sys/param.h> |
#include <sys/param.h> |
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#include <sys/protosw.h> |
#include <sys/protosw.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
|
#include <sys/signalvar.h> |
#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
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/* |
/* |
Line 77 socreate(dom, aso, type, proto) |
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Line 80 socreate(dom, aso, type, proto) |
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MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_WAIT); |
MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_WAIT); |
bzero((caddr_t)so, sizeof(*so)); |
bzero((caddr_t)so, sizeof(*so)); |
so->so_type = type; |
so->so_type = type; |
if (p->p_ucred->cr_uid == 0) |
|
so->so_state = SS_PRIV; |
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so->so_proto = prp; |
so->so_proto = prp; |
error = (*prp->pr_usrreq)(so, PRU_ATTACH, (struct mbuf *)0, |
error = (*prp->pr_usrreq)(so, PRU_ATTACH, (struct mbuf *)0, |
(struct mbuf *)(long)proto, (struct mbuf *)0); |
(struct mbuf *)(long)proto, (struct mbuf *)0, p); |
if (error) { |
if (error) { |
so->so_state |= SS_NOFDREF; |
so->so_state |= SS_NOFDREF; |
sofree(so); |
sofree(so); |
return (error); |
return (error); |
} |
} |
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#ifdef COMPAT_SUNOS |
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{ |
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extern struct emul emul_sunos; |
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if (p->p_emul == &emul_sunos && type == SOCK_DGRAM) |
|
so->so_options |= SO_BROADCAST; |
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} |
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#endif |
*aso = so; |
*aso = so; |
return (0); |
return (0); |
} |
} |
|
|
struct socket *so; |
struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
{ |
{ |
int s = splnet(); |
struct proc *p = curproc; /* XXX */ |
|
int s = splsoftnet(); |
int error; |
int error; |
|
|
error = |
error = (*so->so_proto->pr_usrreq)(so, PRU_BIND, (struct mbuf *)0, |
(*so->so_proto->pr_usrreq)(so, PRU_BIND, |
nam, (struct mbuf *)0, p); |
(struct mbuf *)0, nam, (struct mbuf *)0); |
|
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 111 solisten(so, backlog) |
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Line 119 solisten(so, backlog) |
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register struct socket *so; |
register struct socket *so; |
int backlog; |
int backlog; |
{ |
{ |
int s = splnet(), error; |
int s = splsoftnet(), error; |
|
|
error = |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, (struct mbuf *)0, |
(*so->so_proto->pr_usrreq)(so, PRU_LISTEN, |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0); |
|
if (error) { |
if (error) { |
splx(s); |
splx(s); |
return (error); |
return (error); |
Line 129 solisten(so, backlog) |
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Line 136 solisten(so, backlog) |
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return (0); |
return (0); |
} |
} |
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int |
void |
sofree(so) |
sofree(so) |
register struct socket *so; |
register struct socket *so; |
{ |
{ |
|
|
soclose(so) |
soclose(so) |
register struct socket *so; |
register struct socket *so; |
{ |
{ |
int s = splnet(); /* conservative */ |
int s = splsoftnet(); /* conservative */ |
int error = 0; |
int error = 0; |
|
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if (so->so_options & SO_ACCEPTCONN) { |
if (so->so_options & SO_ACCEPTCONN) { |
|
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if ((so->so_state & SS_ISDISCONNECTING) && |
if ((so->so_state & SS_ISDISCONNECTING) && |
(so->so_state & SS_NBIO)) |
(so->so_state & SS_NBIO)) |
goto drop; |
goto drop; |
while (so->so_state & SS_ISCONNECTED) |
while (so->so_state & SS_ISCONNECTED) { |
if (error = tsleep((caddr_t)&so->so_timeo, |
error = tsleep((caddr_t)&so->so_timeo, |
PSOCK | PCATCH, netcls, so->so_linger * hz)) |
PSOCK | PCATCH, netcls, |
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so->so_linger); |
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if (error) |
break; |
break; |
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} |
} |
} |
} |
} |
drop: |
drop: |
if (so->so_pcb) { |
if (so->so_pcb) { |
int error2 = |
int error2 = (*so->so_proto->pr_usrreq)(so, PRU_DETACH, |
(*so->so_proto->pr_usrreq)(so, PRU_DETACH, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0); |
(struct proc *)0); |
if (error == 0) |
if (error == 0) |
error = error2; |
error = error2; |
} |
} |
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} |
} |
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/* |
/* |
* Must be called at splnet... |
* Must be called at splsoftnet... |
*/ |
*/ |
int |
int |
soabort(so) |
soabort(so) |
struct socket *so; |
struct socket *so; |
{ |
{ |
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|
return ( |
return (*so->so_proto->pr_usrreq)(so, PRU_ABORT, (struct mbuf *)0, |
(*so->so_proto->pr_usrreq)(so, PRU_ABORT, |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0)); |
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} |
} |
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int |
int |
Line 217 soaccept(so, nam) |
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Line 226 soaccept(so, nam) |
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register struct socket *so; |
register struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
{ |
{ |
int s = splnet(); |
int s = splsoftnet(); |
int error; |
int error; |
|
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if ((so->so_state & SS_NOFDREF) == 0) |
if ((so->so_state & SS_NOFDREF) == 0) |
panic("soaccept: !NOFDREF"); |
panic("soaccept: !NOFDREF"); |
so->so_state &= ~SS_NOFDREF; |
so->so_state &= ~SS_NOFDREF; |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, (struct mbuf *)0, |
(struct mbuf *)0, nam, (struct mbuf *)0); |
nam, (struct mbuf *)0, (struct proc *)0); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 234 soconnect(so, nam) |
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Line 243 soconnect(so, nam) |
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register struct socket *so; |
register struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
{ |
{ |
|
struct proc *p = curproc; /* XXX */ |
int s; |
int s; |
int error; |
int error; |
|
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if (so->so_options & SO_ACCEPTCONN) |
if (so->so_options & SO_ACCEPTCONN) |
return (EOPNOTSUPP); |
return (EOPNOTSUPP); |
s = splnet(); |
s = splsoftnet(); |
/* |
/* |
* If protocol is connection-based, can only connect once. |
* If protocol is connection-based, can only connect once. |
* Otherwise, if connected, try to disconnect first. |
* Otherwise, if connected, try to disconnect first. |
Line 252 soconnect(so, nam) |
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Line 262 soconnect(so, nam) |
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error = EISCONN; |
error = EISCONN; |
else |
else |
error = (*so->so_proto->pr_usrreq)(so, PRU_CONNECT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_CONNECT, |
(struct mbuf *)0, nam, (struct mbuf *)0); |
(struct mbuf *)0, nam, (struct mbuf *)0, p); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 262 soconnect2(so1, so2) |
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Line 272 soconnect2(so1, so2) |
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register struct socket *so1; |
register struct socket *so1; |
struct socket *so2; |
struct socket *so2; |
{ |
{ |
int s = splnet(); |
int s = splsoftnet(); |
int error; |
int error; |
|
|
error = (*so1->so_proto->pr_usrreq)(so1, PRU_CONNECT2, |
error = (*so1->so_proto->pr_usrreq)(so1, PRU_CONNECT2, |
(struct mbuf *)0, (struct mbuf *)so2, (struct mbuf *)0); |
(struct mbuf *)0, (struct mbuf *)so2, (struct mbuf *)0, |
|
(struct proc *)0); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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sodisconnect(so) |
sodisconnect(so) |
register struct socket *so; |
register struct socket *so; |
{ |
{ |
int s = splnet(); |
int s = splsoftnet(); |
int error; |
int error; |
|
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if ((so->so_state & SS_ISCONNECTED) == 0) { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
Line 287 sodisconnect(so) |
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Line 298 sodisconnect(so) |
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goto bad; |
goto bad; |
} |
} |
error = (*so->so_proto->pr_usrreq)(so, PRU_DISCONNECT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_DISCONNECT, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
|
(struct proc *)0); |
bad: |
bad: |
splx(s); |
splx(s); |
return (error); |
return (error); |
Line 349 sosend(so, addr, uio, top, control, flag |
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Line 361 sosend(so, addr, uio, top, control, flag |
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#define snderr(errno) { error = errno; splx(s); goto release; } |
#define snderr(errno) { error = errno; splx(s); goto release; } |
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restart: |
restart: |
if (error = sblock(&so->so_snd, SBLOCKWAIT(flags))) |
if ((error = sblock(&so->so_snd, SBLOCKWAIT(flags))) != 0) |
goto out; |
goto out; |
do { |
do { |
s = splnet(); |
s = splsoftnet(); |
if (so->so_state & SS_CANTSENDMORE) |
if (so->so_state & SS_CANTSENDMORE) |
snderr(EPIPE); |
snderr(EPIPE); |
if (so->so_error) |
if (so->so_error) |
|
|
space = sbspace(&so->so_snd); |
space = sbspace(&so->so_snd); |
if (flags & MSG_OOB) |
if (flags & MSG_OOB) |
space += 1024; |
space += 1024; |
if (atomic && resid > so->so_snd.sb_hiwat || |
if ((atomic && resid > so->so_snd.sb_hiwat) || |
clen > so->so_snd.sb_hiwat) |
clen > so->so_snd.sb_hiwat) |
snderr(EMSGSIZE); |
snderr(EMSGSIZE); |
if (space < resid + clen && uio && |
if (space < resid + clen && uio && |
|
|
} else |
} else |
len = min(MCLBYTES, resid); |
len = min(MCLBYTES, resid); |
#endif |
#endif |
space -= MCLBYTES; |
space -= len; |
} else { |
} else { |
nopages: |
nopages: |
len = min(min(mlen, resid), space); |
len = min(min(mlen, resid), space); |
|
|
} while (space > 0 && atomic); |
} while (space > 0 && atomic); |
if (dontroute) |
if (dontroute) |
so->so_options |= SO_DONTROUTE; |
so->so_options |= SO_DONTROUTE; |
s = splnet(); /* XXX */ |
s = splsoftnet(); /* XXX */ |
error = (*so->so_proto->pr_usrreq)(so, |
error = (*so->so_proto->pr_usrreq)(so, |
(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
top, addr, control); |
top, addr, control, p); |
splx(s); |
splx(s); |
if (dontroute) |
if (dontroute) |
so->so_options &= ~SO_DONTROUTE; |
so->so_options &= ~SO_DONTROUTE; |
Line 500 soreceive(so, paddr, uio, mp0, controlp, |
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Line 512 soreceive(so, paddr, uio, mp0, controlp, |
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register int flags, len, error, s, offset; |
register int flags, len, error, s, offset; |
struct protosw *pr = so->so_proto; |
struct protosw *pr = so->so_proto; |
struct mbuf *nextrecord; |
struct mbuf *nextrecord; |
int moff, type; |
int moff, type = 0; |
int orig_resid = uio->uio_resid; |
int orig_resid = uio->uio_resid; |
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|
mp = mp0; |
mp = mp0; |
Line 515 soreceive(so, paddr, uio, mp0, controlp, |
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Line 527 soreceive(so, paddr, uio, mp0, controlp, |
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if (flags & MSG_OOB) { |
if (flags & MSG_OOB) { |
m = m_get(M_WAIT, MT_DATA); |
m = m_get(M_WAIT, MT_DATA); |
error = (*pr->pr_usrreq)(so, PRU_RCVOOB, m, |
error = (*pr->pr_usrreq)(so, PRU_RCVOOB, m, |
(struct mbuf *)(long)(flags & MSG_PEEK), (struct mbuf *)0); |
(struct mbuf *)(long)(flags & MSG_PEEK), (struct mbuf *)0, |
|
(struct proc *)0); |
if (error) |
if (error) |
goto bad; |
goto bad; |
do { |
do { |
|
|
*mp = (struct mbuf *)0; |
*mp = (struct mbuf *)0; |
if (so->so_state & SS_ISCONFIRMING && uio->uio_resid) |
if (so->so_state & SS_ISCONFIRMING && uio->uio_resid) |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
|
|
restart: |
restart: |
if (error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) |
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) |
return (error); |
return (error); |
s = splnet(); |
s = splsoftnet(); |
|
|
m = so->so_rcv.sb_mb; |
m = so->so_rcv.sb_mb; |
/* |
/* |
* If we have less data than requested, block awaiting more |
* If we have less data than requested, block awaiting more |
* (subject to any timeout) if: |
* (subject to any timeout) if: |
* 1. the current count is less than the low water mark, or |
* 1. the current count is less than the low water mark, |
* 2. MSG_WAITALL is set, and it is possible to do the entire |
* 2. MSG_WAITALL is set, and it is possible to do the entire |
* receive operation at once if we block (resid <= hiwat), or |
* receive operation at once if we block (resid <= hiwat), or |
* 3. MSG_DONTWAIT is not set. |
* 3. MSG_DONTWAIT is not set. |
|
|
* we have to do the receive in sections, and thus risk returning |
* we have to do the receive in sections, and thus risk returning |
* a short count if a timeout or signal occurs after we start. |
* a short count if a timeout or signal occurs after we start. |
*/ |
*/ |
if (m == 0 || ((flags & MSG_DONTWAIT) == 0 && |
if (m == 0 || (((flags & MSG_DONTWAIT) == 0 && |
so->so_rcv.sb_cc < uio->uio_resid) && |
so->so_rcv.sb_cc < uio->uio_resid) && |
(so->so_rcv.sb_cc < so->so_rcv.sb_lowat || |
(so->so_rcv.sb_cc < so->so_rcv.sb_lowat || |
((flags & MSG_WAITALL) && uio->uio_resid <= so->so_rcv.sb_hiwat)) && |
((flags & MSG_WAITALL) && uio->uio_resid <= so->so_rcv.sb_hiwat)) && |
m->m_nextpkt == 0 && (pr->pr_flags & PR_ATOMIC) == 0) { |
m->m_nextpkt == 0 && (pr->pr_flags & PR_ATOMIC) == 0)) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (m == 0 && so->so_rcv.sb_cc) |
if (m == 0 && so->so_rcv.sb_cc) |
panic("receive 1"); |
panic("receive 1"); |
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|
goto restart; |
goto restart; |
} |
} |
dontblock: |
dontblock: |
|
#ifdef notyet /* XXXX */ |
if (uio->uio_procp) |
if (uio->uio_procp) |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
|
#endif |
nextrecord = m->m_nextpkt; |
nextrecord = m->m_nextpkt; |
if (pr->pr_flags & PR_ADDR) { |
if (pr->pr_flags & PR_ADDR) { |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
|
|
if (mp == 0) { |
if (mp == 0) { |
splx(s); |
splx(s); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
s = splnet(); |
s = splsoftnet(); |
} else |
} else |
uio->uio_resid -= len; |
uio->uio_resid -= len; |
if (len == m->m_len - moff) { |
if (len == m->m_len - moff) { |
|
|
splx(s); |
splx(s); |
return (0); |
return (0); |
} |
} |
if (m = so->so_rcv.sb_mb) |
if ((m = so->so_rcv.sb_mb) != NULL) |
nextrecord = m->m_nextpkt; |
nextrecord = m->m_nextpkt; |
} |
} |
} |
} |
|
|
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb) |
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb) |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(struct mbuf *)(long)flags, (struct mbuf *)0, |
(struct mbuf *)(long)flags, (struct mbuf *)0, |
(struct mbuf *)0); |
(struct proc *)0); |
} |
} |
if (orig_resid == uio->uio_resid && orig_resid && |
if (orig_resid == uio->uio_resid && orig_resid && |
(flags & MSG_EOR) == 0 && (so->so_state & SS_CANTRCVMORE) == 0) { |
(flags & MSG_EOR) == 0 && (so->so_state & SS_CANTRCVMORE) == 0) { |
Line 797 soshutdown(so, how) |
|
Line 812 soshutdown(so, how) |
|
if (how & FREAD) |
if (how & FREAD) |
sorflush(so); |
sorflush(so); |
if (how & FWRITE) |
if (how & FWRITE) |
return ((*pr->pr_usrreq)(so, PRU_SHUTDOWN, |
return (*pr->pr_usrreq)(so, PRU_SHUTDOWN, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0)); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
return (0); |
return (0); |
} |
} |
|
|
Line 857 sosetopt(so, level, optname, m0) |
|
Line 872 sosetopt(so, level, optname, m0) |
|
case SO_REUSEADDR: |
case SO_REUSEADDR: |
case SO_REUSEPORT: |
case SO_REUSEPORT: |
case SO_OOBINLINE: |
case SO_OOBINLINE: |
|
case SO_TIMESTAMP: |
if (m == NULL || m->m_len < sizeof (int)) { |
if (m == NULL || m->m_len < sizeof (int)) { |
error = EINVAL; |
error = EINVAL; |
goto bad; |
goto bad; |
Line 871 sosetopt(so, level, optname, m0) |
|
Line 887 sosetopt(so, level, optname, m0) |
|
case SO_RCVBUF: |
case SO_RCVBUF: |
case SO_SNDLOWAT: |
case SO_SNDLOWAT: |
case SO_RCVLOWAT: |
case SO_RCVLOWAT: |
|
{ |
|
int optval; |
|
|
if (m == NULL || m->m_len < sizeof (int)) { |
if (m == NULL || m->m_len < sizeof (int)) { |
error = EINVAL; |
error = EINVAL; |
goto bad; |
goto bad; |
} |
} |
|
|
|
/* |
|
* Values < 1 make no sense for any of these |
|
* options, so disallow them. |
|
*/ |
|
optval = *mtod(m, int *); |
|
if (optval < 1) { |
|
error = EINVAL; |
|
goto bad; |
|
} |
|
|
switch (optname) { |
switch (optname) { |
|
|
case SO_SNDBUF: |
case SO_SNDBUF: |
case SO_RCVBUF: |
case SO_RCVBUF: |
if (sbreserve(optname == SO_SNDBUF ? |
if (sbreserve(optname == SO_SNDBUF ? |
&so->so_snd : &so->so_rcv, |
&so->so_snd : &so->so_rcv, |
(u_long) *mtod(m, int *)) == 0) { |
(u_long) optval) == 0) { |
error = ENOBUFS; |
error = ENOBUFS; |
goto bad; |
goto bad; |
} |
} |
break; |
break; |
|
|
|
/* |
|
* Make sure the low-water is never greater than |
|
* the high-water. |
|
*/ |
case SO_SNDLOWAT: |
case SO_SNDLOWAT: |
so->so_snd.sb_lowat = *mtod(m, int *); |
so->so_snd.sb_lowat = |
|
(optval > so->so_snd.sb_hiwat) ? |
|
so->so_snd.sb_hiwat : optval; |
break; |
break; |
case SO_RCVLOWAT: |
case SO_RCVLOWAT: |
so->so_rcv.sb_lowat = *mtod(m, int *); |
so->so_rcv.sb_lowat = |
|
(optval > so->so_rcv.sb_hiwat) ? |
|
so->so_rcv.sb_hiwat : optval; |
break; |
break; |
} |
} |
break; |
break; |
|
} |
|
|
case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
Line 976 sogetopt(so, level, optname, mp) |
|
Line 1015 sogetopt(so, level, optname, mp) |
|
case SO_REUSEPORT: |
case SO_REUSEPORT: |
case SO_BROADCAST: |
case SO_BROADCAST: |
case SO_OOBINLINE: |
case SO_OOBINLINE: |
|
case SO_TIMESTAMP: |
*mtod(m, int *) = so->so_options & optname; |
*mtod(m, int *) = so->so_options & optname; |
break; |
break; |
|
|