version 1.160.2.2, 2009/05/04 08:13:49 |
version 1.173, 2008/10/10 19:49:49 |
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/* $NetBSD$ */ |
/* $NetBSD$ */ |
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/*- |
/*- |
* Copyright (c) 2002, 2007, 2008, 2009 The NetBSD Foundation, Inc. |
* Copyright (c) 2002, 2007, 2008 The NetBSD Foundation, Inc. |
* All rights reserved. |
* All rights reserved. |
* |
* |
* This code is derived from software contributed to The NetBSD Foundation |
* This code is derived from software contributed to The NetBSD Foundation |
* by Jason R. Thorpe of Wasabi Systems, Inc, and by Andrew Doran. |
* by Jason R. Thorpe of Wasabi Systems, Inc. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* modification, are permitted provided that the following conditions |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_compat_netbsd.h" |
#include "opt_inet.h" |
#include "opt_sock_counters.h" |
#include "opt_sock_counters.h" |
#include "opt_sosend_loan.h" |
#include "opt_sosend_loan.h" |
#include "opt_mbuftrace.h" |
#include "opt_mbuftrace.h" |
Line 86 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 86 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/signalvar.h> |
#include <sys/signalvar.h> |
#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
#include <sys/uidinfo.h> |
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#include <sys/event.h> |
#include <sys/event.h> |
#include <sys/poll.h> |
#include <sys/poll.h> |
#include <sys/kauth.h> |
#include <sys/kauth.h> |
#include <sys/mutex.h> |
#include <sys/mutex.h> |
#include <sys/condvar.h> |
#include <sys/condvar.h> |
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#ifdef COMPAT_50 |
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#include <compat/sys/time.h> |
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#include <compat/sys/socket.h> |
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#endif |
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#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
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MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
Line 156 static kcondvar_t socurkva_cv; |
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Line 150 static kcondvar_t socurkva_cv; |
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static size_t sodopendfree(void); |
static size_t sodopendfree(void); |
static size_t sodopendfreel(void); |
static size_t sodopendfreel(void); |
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static void sysctl_kern_somaxkva_setup(void); |
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static struct sysctllog *socket_sysctllog; |
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static vsize_t |
static vsize_t |
sokvareserve(struct socket *so, vsize_t len) |
sokvareserve(struct socket *so, vsize_t len) |
{ |
{ |
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soinit(void) |
soinit(void) |
{ |
{ |
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sysctl_kern_somaxkva_setup(); |
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mutex_init(&so_pendfree_lock, MUTEX_DEFAULT, IPL_VM); |
mutex_init(&so_pendfree_lock, MUTEX_DEFAULT, IPL_VM); |
softnet_lock = mutex_obj_alloc(MUTEX_DEFAULT, IPL_NONE); |
softnet_lock = mutex_obj_alloc(MUTEX_DEFAULT, IPL_NONE); |
cv_init(&socurkva_cv, "sokva"); |
cv_init(&socurkva_cv, "sokva"); |
Line 625 sofree(struct socket *so) |
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Line 614 sofree(struct socket *so) |
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KASSERT(!cv_has_waiters(&so->so_snd.sb_cv)); |
KASSERT(!cv_has_waiters(&so->so_snd.sb_cv)); |
sorflush(so); |
sorflush(so); |
refs = so->so_aborting; /* XXX */ |
refs = so->so_aborting; /* XXX */ |
/* Remove acccept filter if one is present. */ |
#ifdef INET |
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/* remove acccept filter if one is present. */ |
if (so->so_accf != NULL) |
if (so->so_accf != NULL) |
(void)accept_filt_clear(so); |
do_setopt_accept_filter(so, NULL); |
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#endif |
sounlock(so); |
sounlock(so); |
if (refs == 0) /* XXX */ |
if (refs == 0) /* XXX */ |
soput(so); |
soput(so); |
Line 680 soclose(struct socket *so) |
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Line 671 soclose(struct socket *so) |
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if ((so->so_state & SS_ISDISCONNECTING) && so->so_nbio) |
if ((so->so_state & SS_ISDISCONNECTING) && so->so_nbio) |
goto drop; |
goto drop; |
while (so->so_state & SS_ISCONNECTED) { |
while (so->so_state & SS_ISCONNECTED) { |
error = sowait(so, true, so->so_linger * hz); |
error = sowait(so, so->so_linger * hz); |
if (error) |
if (error) |
break; |
break; |
} |
} |
Line 1547 soshutdown(struct socket *so, int how) |
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Line 1538 soshutdown(struct socket *so, int how) |
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return error; |
return error; |
} |
} |
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int |
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sodrain(struct socket *so) |
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{ |
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int error; |
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solock(so); |
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so->so_state |= SS_ISDRAINING; |
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cv_broadcast(&so->so_cv); |
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error = soshutdown(so, SHUT_RDWR); |
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sounlock(so); |
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return error; |
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} |
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void |
void |
sorflush(struct socket *so) |
sorflush(struct socket *so) |
{ |
{ |
Line 1596 sorflush(struct socket *so) |
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Line 1573 sorflush(struct socket *so) |
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static int |
static int |
sosetopt1(struct socket *so, const struct sockopt *sopt) |
sosetopt1(struct socket *so, const struct sockopt *sopt) |
{ |
{ |
int error = EINVAL, optval, opt; |
int error, optval; |
struct linger l; |
struct linger l; |
struct timeval tv; |
struct timeval tv; |
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switch ((opt = sopt->sopt_name)) { |
switch (sopt->sopt_name) { |
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#ifdef INET |
case SO_ACCEPTFILTER: |
case SO_ACCEPTFILTER: |
error = accept_filt_setopt(so, sopt); |
error = do_setopt_accept_filter(so, sopt); |
KASSERT(solocked(so)); |
if (error) |
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return error; |
break; |
break; |
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#endif |
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case SO_LINGER: |
case SO_LINGER: |
error = sockopt_get(sopt, &l, sizeof(l)); |
error = sockopt_get(sopt, &l, sizeof(l)); |
solock(so); |
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if (error) |
if (error) |
break; |
return (error); |
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if (l.l_linger < 0 || l.l_linger > USHRT_MAX || |
if (l.l_linger < 0 || l.l_linger > USHRT_MAX || |
l.l_linger > (INT_MAX / hz)) { |
l.l_linger > (INT_MAX / hz)) |
error = EDOM; |
return EDOM; |
break; |
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} |
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so->so_linger = l.l_linger; |
so->so_linger = l.l_linger; |
if (l.l_onoff) |
if (l.l_onoff) |
so->so_options |= SO_LINGER; |
so->so_options |= SO_LINGER; |
else |
else |
so->so_options &= ~SO_LINGER; |
so->so_options &= ~SO_LINGER; |
break; |
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break; |
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case SO_DEBUG: |
case SO_DEBUG: |
case SO_KEEPALIVE: |
case SO_KEEPALIVE: |
Line 1633 sosetopt1(struct socket *so, const struc |
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Line 1612 sosetopt1(struct socket *so, const struc |
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case SO_REUSEPORT: |
case SO_REUSEPORT: |
case SO_OOBINLINE: |
case SO_OOBINLINE: |
case SO_TIMESTAMP: |
case SO_TIMESTAMP: |
#ifdef SO_OTIMESTAMP |
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case SO_OTIMESTAMP: |
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#endif |
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error = sockopt_getint(sopt, &optval); |
error = sockopt_getint(sopt, &optval); |
solock(so); |
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if (error) |
if (error) |
break; |
return (error); |
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if (optval) |
if (optval) |
so->so_options |= opt; |
so->so_options |= sopt->sopt_name; |
else |
else |
so->so_options &= ~opt; |
so->so_options &= ~sopt->sopt_name; |
break; |
break; |
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case SO_SNDBUF: |
case SO_SNDBUF: |
Line 1651 sosetopt1(struct socket *so, const struc |
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Line 1627 sosetopt1(struct socket *so, const struc |
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case SO_SNDLOWAT: |
case SO_SNDLOWAT: |
case SO_RCVLOWAT: |
case SO_RCVLOWAT: |
error = sockopt_getint(sopt, &optval); |
error = sockopt_getint(sopt, &optval); |
solock(so); |
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if (error) |
if (error) |
break; |
return (error); |
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/* |
/* |
* Values < 1 make no sense for any of these |
* Values < 1 make no sense for any of these |
* options, so disallow them. |
* options, so disallow them. |
*/ |
*/ |
if (optval < 1) { |
if (optval < 1) |
error = EINVAL; |
return EINVAL; |
break; |
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} |
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switch (opt) { |
switch (sopt->sopt_name) { |
case SO_SNDBUF: |
case SO_SNDBUF: |
if (sbreserve(&so->so_snd, (u_long)optval, so) == 0) { |
if (sbreserve(&so->so_snd, (u_long)optval, so) == 0) |
error = ENOBUFS; |
return ENOBUFS; |
break; |
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} |
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so->so_snd.sb_flags &= ~SB_AUTOSIZE; |
so->so_snd.sb_flags &= ~SB_AUTOSIZE; |
break; |
break; |
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case SO_RCVBUF: |
case SO_RCVBUF: |
if (sbreserve(&so->so_rcv, (u_long)optval, so) == 0) { |
if (sbreserve(&so->so_rcv, (u_long)optval, so) == 0) |
error = ENOBUFS; |
return ENOBUFS; |
break; |
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} |
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so->so_rcv.sb_flags &= ~SB_AUTOSIZE; |
so->so_rcv.sb_flags &= ~SB_AUTOSIZE; |
break; |
break; |
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Line 1701 sosetopt1(struct socket *so, const struc |
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Line 1672 sosetopt1(struct socket *so, const struc |
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} |
} |
break; |
break; |
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#ifdef COMPAT_50 |
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case SO_OSNDTIMEO: |
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case SO_ORCVTIMEO: { |
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struct timeval50 otv; |
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error = sockopt_get(sopt, &otv, sizeof(otv)); |
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if (error) { |
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solock(so); |
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break; |
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} |
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timeval50_to_timeval(&otv, &tv); |
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opt = opt == SO_OSNDTIMEO ? SO_SNDTIMEO : SO_RCVTIMEO; |
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error = 0; |
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/*FALLTHROUGH*/ |
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} |
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#endif /* COMPAT_50 */ |
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case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
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error = sockopt_get(sopt, &tv, sizeof(tv)); |
if (error) |
if (error) |
error = sockopt_get(sopt, &tv, sizeof(tv)); |
return (error); |
solock(so); |
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if (error) |
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break; |
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if (tv.tv_sec > (INT_MAX - tv.tv_usec / tick) / hz) { |
if (tv.tv_sec > (INT_MAX - tv.tv_usec / tick) / hz) |
error = EDOM; |
return EDOM; |
break; |
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} |
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optval = tv.tv_sec * hz + tv.tv_usec / tick; |
optval = tv.tv_sec * hz + tv.tv_usec / tick; |
if (optval == 0 && tv.tv_usec != 0) |
if (optval == 0 && tv.tv_usec != 0) |
optval = 1; |
optval = 1; |
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switch (opt) { |
switch (sopt->sopt_name) { |
case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
so->so_snd.sb_timeo = optval; |
so->so_snd.sb_timeo = optval; |
break; |
break; |
Line 1745 sosetopt1(struct socket *so, const struc |
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Line 1696 sosetopt1(struct socket *so, const struc |
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break; |
break; |
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default: |
default: |
solock(so); |
return ENOPROTOOPT; |
error = ENOPROTOOPT; |
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break; |
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} |
} |
KASSERT(solocked(so)); |
return 0; |
return error; |
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} |
} |
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int |
int |
Line 1758 sosetopt(struct socket *so, struct socko |
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Line 1706 sosetopt(struct socket *so, struct socko |
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{ |
{ |
int error, prerr; |
int error, prerr; |
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if (sopt->sopt_level == SOL_SOCKET) { |
solock(so); |
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if (sopt->sopt_level == SOL_SOCKET) |
error = sosetopt1(so, sopt); |
error = sosetopt1(so, sopt); |
KASSERT(solocked(so)); |
else |
} else { |
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error = ENOPROTOOPT; |
error = ENOPROTOOPT; |
solock(so); |
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} |
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if ((error == 0 || error == ENOPROTOOPT) && |
if ((error == 0 || error == ENOPROTOOPT) && |
so->so_proto != NULL && so->so_proto->pr_ctloutput != NULL) { |
so->so_proto != NULL && so->so_proto->pr_ctloutput != NULL) { |
Line 1807 so_setsockopt(struct lwp *l, struct sock |
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Line 1753 so_setsockopt(struct lwp *l, struct sock |
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static int |
static int |
sogetopt1(struct socket *so, struct sockopt *sopt) |
sogetopt1(struct socket *so, struct sockopt *sopt) |
{ |
{ |
int error, optval, opt; |
int error, optval; |
struct linger l; |
struct linger l; |
struct timeval tv; |
struct timeval tv; |
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switch ((opt = sopt->sopt_name)) { |
switch (sopt->sopt_name) { |
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#ifdef INET |
case SO_ACCEPTFILTER: |
case SO_ACCEPTFILTER: |
error = accept_filt_getopt(so, sopt); |
error = do_getopt_accept_filter(so, sopt); |
break; |
break; |
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#endif |
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case SO_LINGER: |
case SO_LINGER: |
l.l_onoff = (so->so_options & SO_LINGER) ? 1 : 0; |
l.l_onoff = (so->so_options & SO_LINGER) ? 1 : 0; |
Line 1833 sogetopt1(struct socket *so, struct sock |
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Line 1781 sogetopt1(struct socket *so, struct sock |
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case SO_BROADCAST: |
case SO_BROADCAST: |
case SO_OOBINLINE: |
case SO_OOBINLINE: |
case SO_TIMESTAMP: |
case SO_TIMESTAMP: |
#ifdef SO_OTIMESTAMP |
error = sockopt_setint(sopt, |
case SO_OTIMESTAMP: |
(so->so_options & sopt->sopt_name) ? 1 : 0); |
#endif |
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error = sockopt_setint(sopt, (so->so_options & opt) ? 1 : 0); |
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break; |
break; |
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case SO_TYPE: |
case SO_TYPE: |
Line 1864 sogetopt1(struct socket *so, struct sock |
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Line 1810 sogetopt1(struct socket *so, struct sock |
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error = sockopt_setint(sopt, so->so_rcv.sb_lowat); |
error = sockopt_setint(sopt, so->so_rcv.sb_lowat); |
break; |
break; |
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#ifdef COMPAT_50 |
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case SO_OSNDTIMEO: |
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case SO_ORCVTIMEO: { |
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struct timeval50 otv; |
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optval = (opt == SO_OSNDTIMEO ? |
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so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
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otv.tv_sec = optval / hz; |
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otv.tv_usec = (optval % hz) * tick; |
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error = sockopt_set(sopt, &otv, sizeof(otv)); |
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break; |
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} |
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#endif /* COMPAT_50 */ |
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case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
optval = (opt == SO_SNDTIMEO ? |
optval = (sopt->sopt_name == SO_SNDTIMEO ? |
so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
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tv.tv_sec = optval / hz; |
tv.tv_sec = optval / hz; |
Line 1926 sogetopt(struct socket *so, struct socko |
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Line 1856 sogetopt(struct socket *so, struct socko |
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* alloc sockopt data buffer buffer |
* alloc sockopt data buffer buffer |
* - will be released at destroy |
* - will be released at destroy |
*/ |
*/ |
static int |
static void |
sockopt_alloc(struct sockopt *sopt, size_t len, km_flag_t kmflag) |
sockopt_alloc(struct sockopt *sopt, size_t len) |
{ |
{ |
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KASSERT(sopt->sopt_size == 0); |
KASSERT(sopt->sopt_size == 0); |
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if (len > sizeof(sopt->sopt_buf)) { |
if (len > sizeof(sopt->sopt_buf)) |
sopt->sopt_data = kmem_zalloc(len, kmflag); |
sopt->sopt_data = kmem_zalloc(len, KM_SLEEP); |
if (sopt->sopt_data == NULL) |
else |
return ENOMEM; |
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} else |
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sopt->sopt_data = sopt->sopt_buf; |
sopt->sopt_data = sopt->sopt_buf; |
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sopt->sopt_size = len; |
sopt->sopt_size = len; |
return 0; |
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} |
} |
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/* |
/* |
* initialise sockopt storage |
* initialise sockopt storage |
* - MAY sleep during allocation |
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*/ |
*/ |
void |
void |
sockopt_init(struct sockopt *sopt, int level, int name, size_t size) |
sockopt_init(struct sockopt *sopt, int level, int name, size_t size) |
Line 1955 sockopt_init(struct sockopt *sopt, int l |
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Line 1881 sockopt_init(struct sockopt *sopt, int l |
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sopt->sopt_level = level; |
sopt->sopt_level = level; |
sopt->sopt_name = name; |
sopt->sopt_name = name; |
(void)sockopt_alloc(sopt, size, KM_SLEEP); |
sockopt_alloc(sopt, size); |
} |
} |
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/* |
/* |
Line 1975 sockopt_destroy(struct sockopt *sopt) |
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Line 1901 sockopt_destroy(struct sockopt *sopt) |
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/* |
/* |
* set sockopt value |
* set sockopt value |
* - value is copied into sockopt |
* - value is copied into sockopt |
* - memory is allocated when necessary, will not sleep |
* - memory is allocated when necessary |
*/ |
*/ |
int |
int |
sockopt_set(struct sockopt *sopt, const void *buf, size_t len) |
sockopt_set(struct sockopt *sopt, const void *buf, size_t len) |
{ |
{ |
int error; |
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if (sopt->sopt_size == 0) { |
if (sopt->sopt_size == 0) |
error = sockopt_alloc(sopt, len, KM_NOSLEEP); |
sockopt_alloc(sopt, len); |
if (error) |
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return error; |
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} |
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KASSERT(sopt->sopt_size == len); |
KASSERT(sopt->sopt_size == len); |
memcpy(sopt->sopt_data, buf, len); |
memcpy(sopt->sopt_data, buf, len); |
Line 2032 sockopt_getint(const struct sockopt *sop |
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Line 1954 sockopt_getint(const struct sockopt *sop |
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* set sockopt value from mbuf |
* set sockopt value from mbuf |
* - ONLY for legacy code |
* - ONLY for legacy code |
* - mbuf is released by sockopt |
* - mbuf is released by sockopt |
* - will not sleep |
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*/ |
*/ |
int |
int |
sockopt_setmbuf(struct sockopt *sopt, struct mbuf *m) |
sockopt_setmbuf(struct sockopt *sopt, struct mbuf *m) |
{ |
{ |
size_t len; |
size_t len; |
int error; |
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len = m_length(m); |
len = m_length(m); |
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if (sopt->sopt_size == 0) { |
if (sopt->sopt_size == 0) |
error = sockopt_alloc(sopt, len, KM_NOSLEEP); |
sockopt_alloc(sopt, len); |
if (error) |
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return error; |
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} |
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KASSERT(sopt->sopt_size == len); |
KASSERT(sopt->sopt_size == len); |
m_copydata(m, 0, len, sopt->sopt_data); |
m_copydata(m, 0, len, sopt->sopt_data); |
Line 2059 sockopt_setmbuf(struct sockopt *sopt, st |
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Line 1976 sockopt_setmbuf(struct sockopt *sopt, st |
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* get sockopt value into mbuf |
* get sockopt value into mbuf |
* - ONLY for legacy code |
* - ONLY for legacy code |
* - mbuf to be released by the caller |
* - mbuf to be released by the caller |
* - will not sleep |
|
*/ |
*/ |
struct mbuf * |
struct mbuf * |
sockopt_getmbuf(const struct sockopt *sopt) |
sockopt_getmbuf(const struct sockopt *sopt) |
{ |
{ |
struct mbuf *m; |
struct mbuf *m; |
|
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if (sopt->sopt_size > MCLBYTES) |
m = m_get(M_WAIT, MT_SOOPTS); |
return NULL; |
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m = m_get(M_DONTWAIT, MT_SOOPTS); |
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if (m == NULL) |
if (m == NULL) |
return NULL; |
return NULL; |
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if (sopt->sopt_size > MLEN) { |
m->m_len = MLEN; |
MCLGET(m, M_DONTWAIT); |
m_copyback(m, 0, sopt->sopt_size, sopt->sopt_data); |
if ((m->m_flags & M_EXT) == 0) { |
if (m_length(m) != max(sopt->sopt_size, MLEN)) { |
m_free(m); |
m_freem(m); |
return NULL; |
return NULL; |
} |
|
} |
} |
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m->m_len = min(sopt->sopt_size, MLEN); |
memcpy(mtod(m, void *), sopt->sopt_data, sopt->sopt_size); |
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m->m_len = sopt->sopt_size; |
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|
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return m; |
return m; |
} |
} |
Line 2092 sohasoutofband(struct socket *so) |
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Line 2002 sohasoutofband(struct socket *so) |
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{ |
{ |
|
|
fownsignal(so->so_pgid, SIGURG, POLL_PRI, POLLPRI|POLLRDBAND, so); |
fownsignal(so->so_pgid, SIGURG, POLL_PRI, POLLPRI|POLLRDBAND, so); |
selnotify(&so->so_rcv.sb_sel, POLLPRI | POLLRDBAND, NOTE_SUBMIT); |
selnotify(&so->so_rcv.sb_sel, POLLPRI | POLLRDBAND, 0); |
} |
} |
|
|
static void |
static void |
Line 2323 sysctl_kern_somaxkva(SYSCTLFN_ARGS) |
|
Line 2233 sysctl_kern_somaxkva(SYSCTLFN_ARGS) |
|
return (error); |
return (error); |
} |
} |
|
|
static void |
SYSCTL_SETUP(sysctl_kern_somaxkva_setup, "sysctl kern.somaxkva setup") |
sysctl_kern_somaxkva_setup(void) |
|
{ |
{ |
|
|
KASSERT(socket_sysctllog == NULL); |
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(&socket_sysctllog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_NODE, "kern", NULL, |
CTLTYPE_NODE, "kern", NULL, |
NULL, 0, NULL, 0, |
NULL, 0, NULL, 0, |
CTL_KERN, CTL_EOL); |
CTL_KERN, CTL_EOL); |
|
|
sysctl_createv(&socket_sysctllog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
CTLTYPE_INT, "somaxkva", |
CTLTYPE_INT, "somaxkva", |
SYSCTL_DESCR("Maximum amount of kernel memory to be " |
SYSCTL_DESCR("Maximum amount of kernel memory to be " |