version 1.166, 2008/05/26 17:21:18 |
version 1.171, 2008/08/06 15:01:23 |
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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_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" |
#include "opt_somaxkva.h" |
#include "opt_somaxkva.h" |
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#include "opt_multiprocessor.h" /* XXX */ |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
Line 127 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
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Line 129 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
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static struct callback_entry sokva_reclaimerentry; |
static struct callback_entry sokva_reclaimerentry; |
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#ifdef SOSEND_NO_LOAN |
#if defined(SOSEND_NO_LOAN) || defined(MULTIPROCESSOR) |
int sock_loan_thresh = -1; |
int sock_loan_thresh = -1; |
#else |
#else |
int sock_loan_thresh = 4096; |
int sock_loan_thresh = 4096; |
Line 417 getsombuf(struct socket *so, int type) |
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Line 419 getsombuf(struct socket *so, int type) |
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return m; |
return m; |
} |
} |
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struct mbuf * |
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m_intopt(struct socket *so, int val) |
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{ |
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struct mbuf *m; |
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m = getsombuf(so, MT_SOOPTS); |
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m->m_len = sizeof(int); |
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*mtod(m, int *) = val; |
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return m; |
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} |
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void |
void |
soinit(void) |
soinit(void) |
{ |
{ |
Line 499 socreate(int dom, struct socket **aso, i |
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Line 490 socreate(int dom, struct socket **aso, i |
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#endif |
#endif |
uid = kauth_cred_geteuid(l->l_cred); |
uid = kauth_cred_geteuid(l->l_cred); |
so->so_uidinfo = uid_find(uid); |
so->so_uidinfo = uid_find(uid); |
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so->so_egid = kauth_cred_getegid(l->l_cred); |
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so->so_cpid = l->l_proc->p_pid; |
if (lockso != NULL) { |
if (lockso != NULL) { |
/* Caller wants us to share a lock. */ |
/* Caller wants us to share a lock. */ |
lock = lockso->so_lock; |
lock = lockso->so_lock; |
Line 621 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 */ |
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#ifdef INET |
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/* remove acccept filter if one is present. */ |
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if (so->so_accf != NULL) |
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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 642 soclose(struct socket *so) |
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Line 640 soclose(struct socket *so) |
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solock(so); |
solock(so); |
if (so->so_options & SO_ACCEPTCONN) { |
if (so->so_options & SO_ACCEPTCONN) { |
do { |
do { |
if ((so2 = TAILQ_FIRST(&so->so_q0)) != 0) { |
while ((so2 = TAILQ_FIRST(&so->so_q0)) != 0) { |
KASSERT(solocked2(so, so2)); |
KASSERT(solocked2(so, so2)); |
(void) soqremque(so2, 0); |
(void) soqremque(so2, 0); |
/* soabort drops the lock. */ |
/* soabort drops the lock. */ |
(void) soabort(so2); |
(void) soabort(so2); |
solock(so); |
solock(so); |
continue; |
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} |
} |
if ((so2 = TAILQ_FIRST(&so->so_q)) != 0) { |
while ((so2 = TAILQ_FIRST(&so->so_q)) != 0) { |
KASSERT(solocked2(so, so2)); |
KASSERT(solocked2(so, so2)); |
(void) soqremque(so2, 1); |
(void) soqremque(so2, 1); |
/* soabort drops the lock. */ |
/* soabort drops the lock. */ |
(void) soabort(so2); |
(void) soabort(so2); |
solock(so); |
solock(so); |
continue; |
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} |
} |
} while (0); |
} while (!TAILQ_EMPTY(&so->so_q0)); |
} |
} |
if (so->so_pcb == 0) |
if (so->so_pcb == 0) |
goto discard; |
goto discard; |
Line 1568 sorflush(struct socket *so) |
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Line 1564 sorflush(struct socket *so) |
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sbrelease(&asb, so); |
sbrelease(&asb, so); |
} |
} |
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/* |
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* internal set SOL_SOCKET options |
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*/ |
static int |
static int |
sosetopt1(struct socket *so, int level, int optname, struct mbuf *m) |
sosetopt1(struct socket *so, const struct sockopt *sopt) |
{ |
{ |
int optval, val; |
int error, optval; |
struct linger *l; |
struct linger l; |
struct sockbuf *sb; |
struct timeval tv; |
struct timeval *tv; |
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switch (optname) { |
switch (sopt->sopt_name) { |
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case SO_LINGER: |
#ifdef INET |
if (m == NULL || m->m_len != sizeof(struct linger)) |
case SO_ACCEPTFILTER: |
return EINVAL; |
error = do_setopt_accept_filter(so, sopt); |
l = mtod(m, struct linger *); |
if (error) |
if (l->l_linger < 0 || l->l_linger > USHRT_MAX || |
return error; |
l->l_linger > (INT_MAX / hz)) |
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return EDOM; |
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so->so_linger = l->l_linger; |
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if (l->l_onoff) |
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so->so_options |= SO_LINGER; |
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else |
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so->so_options &= ~SO_LINGER; |
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break; |
break; |
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#endif |
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case SO_LINGER: |
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error = sockopt_get(sopt, &l, sizeof(l)); |
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if (error) |
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return (error); |
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if (l.l_linger < 0 || l.l_linger > USHRT_MAX || |
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l.l_linger > (INT_MAX / hz)) |
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return EDOM; |
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so->so_linger = l.l_linger; |
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if (l.l_onoff) |
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so->so_options |= SO_LINGER; |
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else |
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so->so_options &= ~SO_LINGER; |
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break; |
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case SO_DEBUG: |
case SO_DEBUG: |
case SO_KEEPALIVE: |
case SO_KEEPALIVE: |
Line 1601 sosetopt1(struct socket *so, int level, |
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Line 1609 sosetopt1(struct socket *so, int level, |
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case SO_REUSEPORT: |
case SO_REUSEPORT: |
case SO_OOBINLINE: |
case SO_OOBINLINE: |
case SO_TIMESTAMP: |
case SO_TIMESTAMP: |
if (m == NULL || m->m_len < sizeof(int)) |
error = sockopt_getint(sopt, &optval); |
return EINVAL; |
if (error) |
if (*mtod(m, int *)) |
return (error); |
so->so_options |= optname; |
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if (optval) |
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so->so_options |= sopt->sopt_name; |
else |
else |
so->so_options &= ~optname; |
so->so_options &= ~sopt->sopt_name; |
break; |
break; |
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case SO_SNDBUF: |
case SO_SNDBUF: |
case SO_RCVBUF: |
case SO_RCVBUF: |
case SO_SNDLOWAT: |
case SO_SNDLOWAT: |
case SO_RCVLOWAT: |
case SO_RCVLOWAT: |
if (m == NULL || m->m_len < sizeof(int)) |
error = sockopt_getint(sopt, &optval); |
return EINVAL; |
if (error) |
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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. |
*/ |
*/ |
optval = *mtod(m, int *); |
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if (optval < 1) |
if (optval < 1) |
return EINVAL; |
return EINVAL; |
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switch (optname) { |
switch (sopt->sopt_name) { |
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case SO_SNDBUF: |
case SO_SNDBUF: |
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if (sbreserve(&so->so_snd, (u_long)optval, so) == 0) |
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return ENOBUFS; |
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so->so_snd.sb_flags &= ~SB_AUTOSIZE; |
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break; |
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case SO_RCVBUF: |
case SO_RCVBUF: |
sb = (optname == SO_SNDBUF) ? |
if (sbreserve(&so->so_rcv, (u_long)optval, so) == 0) |
&so->so_snd : &so->so_rcv; |
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if (sbreserve(sb, (u_long)optval, so) == 0) |
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return ENOBUFS; |
return ENOBUFS; |
sb->sb_flags &= ~SB_AUTOSIZE; |
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so->so_rcv.sb_flags &= ~SB_AUTOSIZE; |
break; |
break; |
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/* |
/* |
Line 1640 sosetopt1(struct socket *so, int level, |
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Line 1654 sosetopt1(struct socket *so, int level, |
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* the high-water. |
* the high-water. |
*/ |
*/ |
case SO_SNDLOWAT: |
case SO_SNDLOWAT: |
so->so_snd.sb_lowat = |
if (optval > so->so_snd.sb_hiwat) |
(optval > so->so_snd.sb_hiwat) ? |
optval = so->so_snd.sb_hiwat; |
so->so_snd.sb_hiwat : optval; |
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so->so_snd.sb_lowat = optval; |
break; |
break; |
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case SO_RCVLOWAT: |
case SO_RCVLOWAT: |
so->so_rcv.sb_lowat = |
if (optval > so->so_rcv.sb_hiwat) |
(optval > so->so_rcv.sb_hiwat) ? |
optval = so->so_rcv.sb_hiwat; |
so->so_rcv.sb_hiwat : optval; |
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so->so_rcv.sb_lowat = optval; |
break; |
break; |
} |
} |
break; |
break; |
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case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
if (m == NULL || m->m_len < sizeof(*tv)) |
error = sockopt_get(sopt, &tv, sizeof(tv)); |
return EINVAL; |
if (error) |
tv = mtod(m, struct timeval *); |
return (error); |
if (tv->tv_sec > (INT_MAX - tv->tv_usec / tick) / hz) |
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if (tv.tv_sec > (INT_MAX - tv.tv_usec / tick) / hz) |
return EDOM; |
return EDOM; |
val = tv->tv_sec * hz + tv->tv_usec / tick; |
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if (val == 0 && tv->tv_usec != 0) |
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val = 1; |
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switch (optname) { |
optval = tv.tv_sec * hz + tv.tv_usec / tick; |
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if (optval == 0 && tv.tv_usec != 0) |
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optval = 1; |
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switch (sopt->sopt_name) { |
case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
so->so_snd.sb_timeo = val; |
so->so_snd.sb_timeo = optval; |
break; |
break; |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
so->so_rcv.sb_timeo = val; |
so->so_rcv.sb_timeo = optval; |
break; |
break; |
} |
} |
break; |
break; |
Line 1681 sosetopt1(struct socket *so, int level, |
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Line 1699 sosetopt1(struct socket *so, int level, |
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} |
} |
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int |
int |
sosetopt(struct socket *so, int level, int optname, struct mbuf *m) |
sosetopt(struct socket *so, struct sockopt *sopt) |
{ |
{ |
int error, prerr; |
int error, prerr; |
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solock(so); |
solock(so); |
if (level == SOL_SOCKET) |
if (sopt->sopt_level == SOL_SOCKET) |
error = sosetopt1(so, level, optname, m); |
error = sosetopt1(so, sopt); |
else |
else |
error = ENOPROTOOPT; |
error = ENOPROTOOPT; |
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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) { |
/* give the protocol stack a shot */ |
/* give the protocol stack a shot */ |
prerr = (*so->so_proto->pr_ctloutput)(PRCO_SETOPT, so, level, |
prerr = (*so->so_proto->pr_ctloutput)(PRCO_SETOPT, so, sopt); |
optname, &m); |
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if (prerr == 0) |
if (prerr == 0) |
error = 0; |
error = 0; |
else if (prerr != ENOPROTOOPT) |
else if (prerr != ENOPROTOOPT) |
error = prerr; |
error = prerr; |
} else if (m != NULL) |
} |
(void)m_free(m); |
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sounlock(so); |
sounlock(so); |
return error; |
return error; |
} |
} |
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/* |
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* so_setsockopt() is a wrapper providing a sockopt structure for sosetopt() |
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*/ |
int |
int |
sogetopt(struct socket *so, int level, int optname, struct mbuf **mp) |
so_setsockopt(struct lwp *l, struct socket *so, int level, int name, |
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const void *val, size_t valsize) |
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{ |
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struct sockopt sopt; |
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int error; |
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KASSERT(valsize == 0 || val != NULL); |
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sockopt_init(&sopt, level, name, valsize); |
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sockopt_set(&sopt, val, valsize); |
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error = sosetopt(so, &sopt); |
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sockopt_destroy(&sopt); |
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return error; |
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} |
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/* |
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* internal get SOL_SOCKET options |
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*/ |
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static int |
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sogetopt1(struct socket *so, struct sockopt *sopt) |
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{ |
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int error, optval; |
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struct linger l; |
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struct timeval tv; |
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switch (sopt->sopt_name) { |
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#ifdef INET |
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case SO_ACCEPTFILTER: |
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error = do_getopt_accept_filter(so, sopt); |
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break; |
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#endif |
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case SO_LINGER: |
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l.l_onoff = (so->so_options & SO_LINGER) ? 1 : 0; |
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l.l_linger = so->so_linger; |
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error = sockopt_set(sopt, &l, sizeof(l)); |
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break; |
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case SO_USELOOPBACK: |
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case SO_DONTROUTE: |
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case SO_DEBUG: |
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case SO_KEEPALIVE: |
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case SO_REUSEADDR: |
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case SO_REUSEPORT: |
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case SO_BROADCAST: |
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case SO_OOBINLINE: |
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case SO_TIMESTAMP: |
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error = sockopt_setint(sopt, |
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(so->so_options & sopt->sopt_name) ? 1 : 0); |
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break; |
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case SO_TYPE: |
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error = sockopt_setint(sopt, so->so_type); |
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break; |
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case SO_ERROR: |
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error = sockopt_setint(sopt, so->so_error); |
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so->so_error = 0; |
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break; |
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case SO_SNDBUF: |
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error = sockopt_setint(sopt, so->so_snd.sb_hiwat); |
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break; |
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case SO_RCVBUF: |
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error = sockopt_setint(sopt, so->so_rcv.sb_hiwat); |
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break; |
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case SO_SNDLOWAT: |
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error = sockopt_setint(sopt, so->so_snd.sb_lowat); |
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break; |
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case SO_RCVLOWAT: |
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error = sockopt_setint(sopt, so->so_rcv.sb_lowat); |
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break; |
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case SO_SNDTIMEO: |
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case SO_RCVTIMEO: |
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optval = (sopt->sopt_name == SO_SNDTIMEO ? |
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so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
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tv.tv_sec = optval / hz; |
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tv.tv_usec = (optval % hz) * tick; |
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error = sockopt_set(sopt, &tv, sizeof(tv)); |
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break; |
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case SO_OVERFLOWED: |
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error = sockopt_setint(sopt, so->so_rcv.sb_overflowed); |
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break; |
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default: |
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error = ENOPROTOOPT; |
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break; |
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} |
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return (error); |
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} |
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int |
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sogetopt(struct socket *so, struct sockopt *sopt) |
{ |
{ |
struct mbuf *m; |
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int error; |
int error; |
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solock(so); |
solock(so); |
if (level != SOL_SOCKET) { |
if (sopt->sopt_level != SOL_SOCKET) { |
if (so->so_proto && so->so_proto->pr_ctloutput) { |
if (so->so_proto && so->so_proto->pr_ctloutput) { |
error = ((*so->so_proto->pr_ctloutput) |
error = ((*so->so_proto->pr_ctloutput) |
(PRCO_GETOPT, so, level, optname, mp)); |
(PRCO_GETOPT, so, sopt)); |
} else |
} else |
error = (ENOPROTOOPT); |
error = (ENOPROTOOPT); |
} else { |
} else { |
m = m_get(M_WAIT, MT_SOOPTS); |
error = sogetopt1(so, sopt); |
m->m_len = sizeof(int); |
} |
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sounlock(so); |
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return (error); |
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} |
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switch (optname) { |
/* |
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* alloc sockopt data buffer buffer |
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* - will be released at destroy |
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*/ |
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static void |
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sockopt_alloc(struct sockopt *sopt, size_t len) |
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{ |
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case SO_LINGER: |
KASSERT(sopt->sopt_size == 0); |
m->m_len = sizeof(struct linger); |
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mtod(m, struct linger *)->l_onoff = |
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(so->so_options & SO_LINGER) ? 1 : 0; |
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mtod(m, struct linger *)->l_linger = so->so_linger; |
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break; |
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case SO_USELOOPBACK: |
if (len > sizeof(sopt->sopt_buf)) |
case SO_DONTROUTE: |
sopt->sopt_data = malloc(len, M_SOOPTS, M_WAITOK | M_ZERO); |
case SO_DEBUG: |
else |
case SO_KEEPALIVE: |
sopt->sopt_data = sopt->sopt_buf; |
case SO_REUSEADDR: |
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case SO_REUSEPORT: |
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case SO_BROADCAST: |
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case SO_OOBINLINE: |
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case SO_TIMESTAMP: |
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*mtod(m, int *) = (so->so_options & optname) ? 1 : 0; |
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break; |
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case SO_TYPE: |
sopt->sopt_size = len; |
*mtod(m, int *) = so->so_type; |
} |
break; |
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|
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case SO_ERROR: |
/* |
*mtod(m, int *) = so->so_error; |
* initialise sockopt storage |
so->so_error = 0; |
*/ |
break; |
void |
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sockopt_init(struct sockopt *sopt, int level, int name, size_t size) |
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{ |
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case SO_SNDBUF: |
memset(sopt, 0, sizeof(*sopt)); |
*mtod(m, int *) = so->so_snd.sb_hiwat; |
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break; |
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|
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case SO_RCVBUF: |
sopt->sopt_level = level; |
*mtod(m, int *) = so->so_rcv.sb_hiwat; |
sopt->sopt_name = name; |
break; |
sockopt_alloc(sopt, size); |
|
} |
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case SO_SNDLOWAT: |
/* |
*mtod(m, int *) = so->so_snd.sb_lowat; |
* destroy sockopt storage |
break; |
* - will release any held memory references |
|
*/ |
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void |
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sockopt_destroy(struct sockopt *sopt) |
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{ |
|
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case SO_RCVLOWAT: |
if (sopt->sopt_data != sopt->sopt_buf) |
*mtod(m, int *) = so->so_rcv.sb_lowat; |
free(sopt->sopt_data, M_SOOPTS); |
break; |
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|
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case SO_SNDTIMEO: |
memset(sopt, 0, sizeof(*sopt)); |
case SO_RCVTIMEO: |
} |
{ |
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int val = (optname == SO_SNDTIMEO ? |
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so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
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|
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m->m_len = sizeof(struct timeval); |
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mtod(m, struct timeval *)->tv_sec = val / hz; |
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mtod(m, struct timeval *)->tv_usec = |
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(val % hz) * tick; |
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break; |
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} |
|
|
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case SO_OVERFLOWED: |
/* |
*mtod(m, int *) = so->so_rcv.sb_overflowed; |
* set sockopt value |
break; |
* - value is copied into sockopt |
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* - memory is allocated when necessary |
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*/ |
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int |
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sockopt_set(struct sockopt *sopt, const void *buf, size_t len) |
|
{ |
|
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default: |
if (sopt->sopt_size == 0) |
sounlock(so); |
sockopt_alloc(sopt, len); |
(void)m_free(m); |
|
return (ENOPROTOOPT); |
KASSERT(sopt->sopt_size == len); |
} |
memcpy(sopt->sopt_data, buf, len); |
*mp = m; |
return 0; |
error = 0; |
} |
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|
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/* |
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* common case of set sockopt integer value |
|
*/ |
|
int |
|
sockopt_setint(struct sockopt *sopt, int val) |
|
{ |
|
|
|
return sockopt_set(sopt, &val, sizeof(int)); |
|
} |
|
|
|
/* |
|
* get sockopt value |
|
* - correct size must be given |
|
*/ |
|
int |
|
sockopt_get(const struct sockopt *sopt, void *buf, size_t len) |
|
{ |
|
|
|
if (sopt->sopt_size != len) |
|
return EINVAL; |
|
|
|
memcpy(buf, sopt->sopt_data, len); |
|
return 0; |
|
} |
|
|
|
/* |
|
* common case of get sockopt integer value |
|
*/ |
|
int |
|
sockopt_getint(const struct sockopt *sopt, int *valp) |
|
{ |
|
|
|
return sockopt_get(sopt, valp, sizeof(int)); |
|
} |
|
|
|
/* |
|
* set sockopt value from mbuf |
|
* - ONLY for legacy code |
|
* - mbuf is released by sockopt |
|
*/ |
|
int |
|
sockopt_setmbuf(struct sockopt *sopt, struct mbuf *m) |
|
{ |
|
size_t len; |
|
|
|
len = m_length(m); |
|
|
|
if (sopt->sopt_size == 0) |
|
sockopt_alloc(sopt, len); |
|
|
|
KASSERT(sopt->sopt_size == len); |
|
m_copydata(m, 0, len, sopt->sopt_data); |
|
m_freem(m); |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* get sockopt value into mbuf |
|
* - ONLY for legacy code |
|
* - mbuf to be released by the caller |
|
*/ |
|
struct mbuf * |
|
sockopt_getmbuf(const struct sockopt *sopt) |
|
{ |
|
struct mbuf *m; |
|
|
|
m = m_get(M_WAIT, MT_SOOPTS); |
|
if (m == NULL) |
|
return NULL; |
|
|
|
m->m_len = MLEN; |
|
m_copyback(m, 0, sopt->sopt_size, sopt->sopt_data); |
|
if (m_length(m) != max(sopt->sopt_size, MLEN)) { |
|
m_freem(m); |
|
return NULL; |
} |
} |
|
m->m_len = min(sopt->sopt_size, MLEN); |
|
|
sounlock(so); |
return m; |
return (error); |
|
} |
} |
|
|
void |
void |