version 1.162, 2008/04/28 20:24:05 |
version 1.179, 2009/01/14 18:09:00 |
|
|
#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
|
|
|
#include "opt_compat_netbsd.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" |
|
#include "opt_multiprocessor.h" /* XXX */ |
|
|
#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/proc.h> |
#include <sys/proc.h> |
#include <sys/file.h> |
#include <sys/file.h> |
#include <sys/filedesc.h> |
#include <sys/filedesc.h> |
#include <sys/malloc.h> |
#include <sys/kmem.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/domain.h> |
#include <sys/domain.h> |
#include <sys/kernel.h> |
#include <sys/kernel.h> |
Line 84 __KERNEL_RCSID(0, "$NetBSD$"); |
|
Line 86 __KERNEL_RCSID(0, "$NetBSD$"); |
|
#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> |
#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> |
|
|
|
#ifdef COMPAT_50 |
|
#include <compat/sys/time.h> |
|
#define SO_OSNDTIMEO 0x1005 |
|
#define SO_ORCVTIMEO 0x1006 |
|
#endif |
|
|
#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
|
|
MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
Line 127 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
|
Line 136 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
|
|
|
static struct callback_entry sokva_reclaimerentry; |
static struct callback_entry sokva_reclaimerentry; |
|
|
#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 148 static kcondvar_t socurkva_cv; |
|
Line 157 static kcondvar_t socurkva_cv; |
|
static size_t sodopendfree(void); |
static size_t sodopendfree(void); |
static size_t sodopendfreel(void); |
static size_t sodopendfreel(void); |
|
|
|
static void sysctl_kern_somaxkva_setup(void); |
|
static struct sysctllog *socket_sysctllog; |
|
|
static vsize_t |
static vsize_t |
sokvareserve(struct socket *so, vsize_t len) |
sokvareserve(struct socket *so, vsize_t len) |
{ |
{ |
Line 417 getsombuf(struct socket *so, int type) |
|
Line 429 getsombuf(struct socket *so, int type) |
|
return m; |
return m; |
} |
} |
|
|
struct mbuf * |
|
m_intopt(struct socket *so, int val) |
|
{ |
|
struct mbuf *m; |
|
|
|
m = getsombuf(so, MT_SOOPTS); |
|
m->m_len = sizeof(int); |
|
*mtod(m, int *) = val; |
|
return m; |
|
} |
|
|
|
void |
void |
soinit(void) |
soinit(void) |
{ |
{ |
|
|
|
sysctl_kern_somaxkva_setup(); |
|
|
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"); |
|
soinit2(); |
|
|
/* Set the initial adjusted socket buffer size. */ |
/* Set the initial adjusted socket buffer size. */ |
if (sb_max_set(sb_max)) |
if (sb_max_set(sb_max)) |
Line 498 socreate(int dom, struct socket **aso, i |
|
Line 502 socreate(int dom, struct socket **aso, i |
|
#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); |
|
so->so_egid = kauth_cred_getegid(l->l_cred); |
|
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 567 solisten(struct socket *so, int backlog, |
|
Line 573 solisten(struct socket *so, int backlog, |
|
|
|
solock(so); |
solock(so); |
if ((so->so_state & (SS_ISCONNECTED | SS_ISCONNECTING | |
if ((so->so_state & (SS_ISCONNECTED | SS_ISCONNECTING | |
SS_ISDISCONNECTING)) != 0) |
SS_ISDISCONNECTING)) != 0) { |
|
sounlock(so); |
return (EOPNOTSUPP); |
return (EOPNOTSUPP); |
|
} |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, NULL, |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, NULL, |
NULL, NULL, l); |
NULL, NULL, l); |
if (error != 0) { |
if (error != 0) { |
Line 618 sofree(struct socket *so) |
|
Line 626 sofree(struct socket *so) |
|
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. */ |
|
if (so->so_accf != NULL) |
|
(void)accept_filt_clear(so); |
sounlock(so); |
sounlock(so); |
if (refs == 0) /* XXX */ |
if (refs == 0) /* XXX */ |
soput(so); |
soput(so); |
Line 638 soclose(struct socket *so) |
|
Line 649 soclose(struct socket *so) |
|
error = 0; |
error = 0; |
solock(so); |
solock(so); |
if (so->so_options & SO_ACCEPTCONN) { |
if (so->so_options & SO_ACCEPTCONN) { |
do { |
for (;;) { |
if ((so2 = TAILQ_FIRST(&so->so_q0)) != 0) { |
if ((so2 = TAILQ_FIRST(&so->so_q0)) != 0) { |
KASSERT(solocked2(so, so2)); |
KASSERT(solocked2(so, so2)); |
(void) soqremque(so2, 0); |
(void) soqremque(so2, 0); |
Line 655 soclose(struct socket *so) |
|
Line 666 soclose(struct socket *so) |
|
solock(so); |
solock(so); |
continue; |
continue; |
} |
} |
} while (0); |
break; |
|
} |
} |
} |
if (so->so_pcb == 0) |
if (so->so_pcb == 0) |
goto discard; |
goto discard; |
Line 706 soabort(struct socket *so) |
|
Line 718 soabort(struct socket *so) |
|
error = (*so->so_proto->pr_usrreq)(so, PRU_ABORT, NULL, |
error = (*so->so_proto->pr_usrreq)(so, PRU_ABORT, NULL, |
NULL, NULL, NULL); |
NULL, NULL, NULL); |
refs = --so->so_aborting; /* XXX */ |
refs = --so->so_aborting; /* XXX */ |
if (error) { |
if (error || (refs == 0)) { |
sofree(so); |
sofree(so); |
} else { |
} else { |
sounlock(so); |
sounlock(so); |
if (refs == 0) |
|
sofree(so); |
|
} |
} |
return error; |
return error; |
} |
} |
Line 850 sosend(struct socket *so, struct mbuf *a |
|
Line 860 sosend(struct socket *so, struct mbuf *a |
|
dontroute = |
dontroute = |
(flags & MSG_DONTROUTE) && (so->so_options & SO_DONTROUTE) == 0 && |
(flags & MSG_DONTROUTE) && (so->so_options & SO_DONTROUTE) == 0 && |
(so->so_proto->pr_flags & PR_ATOMIC); |
(so->so_proto->pr_flags & PR_ATOMIC); |
if (l) |
l->l_ru.ru_msgsnd++; |
l->l_ru.ru_msgsnd++; |
|
if (control) |
if (control) |
clen = control->m_len; |
clen = control->m_len; |
restart: |
restart: |
Line 1568 sorflush(struct socket *so) |
|
Line 1577 sorflush(struct socket *so) |
|
sbrelease(&asb, so); |
sbrelease(&asb, so); |
} |
} |
|
|
|
/* |
|
* internal set SOL_SOCKET options |
|
*/ |
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 = 0, optval, opt; |
struct linger *l; |
struct linger l; |
struct sockbuf *sb; |
struct timeval tv; |
struct timeval *tv; |
|
|
|
switch (optname) { |
switch ((opt = sopt->sopt_name)) { |
|
|
case SO_LINGER: |
case SO_ACCEPTFILTER: |
if (m == NULL || m->m_len != sizeof(struct linger)) |
error = accept_filt_setopt(so, sopt); |
return EINVAL; |
KASSERT(solocked(so)); |
l = mtod(m, struct linger *); |
|
if (l->l_linger < 0 || l->l_linger > USHRT_MAX || |
|
l->l_linger > (INT_MAX / hz)) |
|
return EDOM; |
|
so->so_linger = l->l_linger; |
|
if (l->l_onoff) |
|
so->so_options |= SO_LINGER; |
|
else |
|
so->so_options &= ~SO_LINGER; |
|
break; |
break; |
|
|
|
case SO_LINGER: |
|
error = sockopt_get(sopt, &l, sizeof(l)); |
|
solock(so); |
|
if (error) |
|
break; |
|
if (l.l_linger < 0 || l.l_linger > USHRT_MAX || |
|
l.l_linger > (INT_MAX / hz)) { |
|
error = EDOM; |
|
break; |
|
} |
|
so->so_linger = l.l_linger; |
|
if (l.l_onoff) |
|
so->so_options |= SO_LINGER; |
|
else |
|
so->so_options &= ~SO_LINGER; |
|
break; |
|
|
case SO_DEBUG: |
case SO_DEBUG: |
case SO_KEEPALIVE: |
case SO_KEEPALIVE: |
case SO_DONTROUTE: |
case SO_DONTROUTE: |
Line 1601 sosetopt1(struct socket *so, int level, |
|
Line 1620 sosetopt1(struct socket *so, int level, |
|
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; |
solock(so); |
if (*mtod(m, int *)) |
if (error) |
so->so_options |= optname; |
break; |
|
if (optval) |
|
so->so_options |= opt; |
else |
else |
so->so_options &= ~optname; |
so->so_options &= ~opt; |
break; |
break; |
|
|
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; |
solock(so); |
|
if (error) |
|
break; |
|
|
/* |
/* |
* 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 *); |
if (optval < 1) { |
if (optval < 1) |
error = EINVAL; |
return EINVAL; |
break; |
|
} |
switch (optname) { |
|
|
|
|
switch (opt) { |
case SO_SNDBUF: |
case SO_SNDBUF: |
|
if (sbreserve(&so->so_snd, (u_long)optval, so) == 0) { |
|
error = ENOBUFS; |
|
break; |
|
} |
|
so->so_snd.sb_flags &= ~SB_AUTOSIZE; |
|
break; |
|
|
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; |
error = ENOBUFS; |
if (sbreserve(sb, (u_long)optval, so) == 0) |
break; |
return ENOBUFS; |
} |
sb->sb_flags &= ~SB_AUTOSIZE; |
so->so_rcv.sb_flags &= ~SB_AUTOSIZE; |
break; |
break; |
|
|
/* |
/* |
Line 1640 sosetopt1(struct socket *so, int level, |
|
Line 1670 sosetopt1(struct socket *so, int level, |
|
* 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; |
|
|
so->so_snd.sb_lowat = optval; |
break; |
break; |
|
|
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; |
|
|
so->so_rcv.sb_lowat = optval; |
break; |
break; |
} |
} |
break; |
break; |
|
|
|
#ifdef COMPAT_50 |
|
case SO_OSNDTIMEO: |
|
case SO_ORCVTIMEO: { |
|
struct timeval50 otv; |
|
error = sockopt_get(sopt, &otv, sizeof(otv)); |
|
timeval50_to_timeval(&otv, &tv); |
|
opt = opt == SO_OSNDTIMEO ? SO_SNDTIMEO : SO_RCVTIMEO; |
|
error = 1; |
|
/*FALLTHROUGH*/ |
|
} |
|
#endif /* COMPAT_50 */ |
|
|
case SO_SNDTIMEO: |
case SO_SNDTIMEO: |
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
if (m == NULL || m->m_len < sizeof(*tv)) |
if (error) |
return EINVAL; |
error = sockopt_get(sopt, &tv, sizeof(tv)); |
tv = mtod(m, struct timeval *); |
solock(so); |
if (tv->tv_sec > (INT_MAX - tv->tv_usec / tick) / hz) |
if (error) |
return EDOM; |
break; |
val = tv->tv_sec * hz + tv->tv_usec / tick; |
|
if (val == 0 && tv->tv_usec != 0) |
|
val = 1; |
|
|
|
switch (optname) { |
if (tv.tv_sec > (INT_MAX - tv.tv_usec / tick) / hz) { |
|
error = EDOM; |
|
break; |
|
} |
|
|
|
optval = tv.tv_sec * hz + tv.tv_usec / tick; |
|
if (optval == 0 && tv.tv_usec != 0) |
|
optval = 1; |
|
|
|
switch (opt) { |
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; |
|
|
default: |
default: |
return ENOPROTOOPT; |
solock(so); |
|
error = ENOPROTOOPT; |
|
break; |
} |
} |
return 0; |
KASSERT(solocked(so)); |
|
return error; |
} |
} |
|
|
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; |
|
|
solock(so); |
if (sopt->sopt_level == SOL_SOCKET) { |
if (level == SOL_SOCKET) |
error = sosetopt1(so, sopt); |
error = sosetopt1(so, level, optname, m); |
KASSERT(solocked(so)); |
else |
} else { |
error = ENOPROTOOPT; |
error = ENOPROTOOPT; |
|
solock(so); |
|
} |
|
|
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); |
|
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); |
|
sounlock(so); |
sounlock(so); |
return error; |
return error; |
} |
} |
|
|
|
/* |
|
* so_setsockopt() is a wrapper providing a sockopt structure for sosetopt() |
|
*/ |
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, |
|
const void *val, size_t valsize) |
|
{ |
|
struct sockopt sopt; |
|
int error; |
|
|
|
KASSERT(valsize == 0 || val != NULL); |
|
|
|
sockopt_init(&sopt, level, name, valsize); |
|
sockopt_set(&sopt, val, valsize); |
|
|
|
error = sosetopt(so, &sopt); |
|
|
|
sockopt_destroy(&sopt); |
|
|
|
return error; |
|
} |
|
|
|
/* |
|
* internal get SOL_SOCKET options |
|
*/ |
|
static int |
|
sogetopt1(struct socket *so, struct sockopt *sopt) |
|
{ |
|
int error, optval, opt; |
|
struct linger l; |
|
struct timeval tv; |
|
|
|
switch ((opt = sopt->sopt_name)) { |
|
|
|
case SO_ACCEPTFILTER: |
|
error = accept_filt_getopt(so, sopt); |
|
break; |
|
|
|
case SO_LINGER: |
|
l.l_onoff = (so->so_options & SO_LINGER) ? 1 : 0; |
|
l.l_linger = so->so_linger; |
|
|
|
error = sockopt_set(sopt, &l, sizeof(l)); |
|
break; |
|
|
|
case SO_USELOOPBACK: |
|
case SO_DONTROUTE: |
|
case SO_DEBUG: |
|
case SO_KEEPALIVE: |
|
case SO_REUSEADDR: |
|
case SO_REUSEPORT: |
|
case SO_BROADCAST: |
|
case SO_OOBINLINE: |
|
case SO_TIMESTAMP: |
|
error = sockopt_setint(sopt, (so->so_options & opt) ? 1 : 0); |
|
break; |
|
|
|
case SO_TYPE: |
|
error = sockopt_setint(sopt, so->so_type); |
|
break; |
|
|
|
case SO_ERROR: |
|
error = sockopt_setint(sopt, so->so_error); |
|
so->so_error = 0; |
|
break; |
|
|
|
case SO_SNDBUF: |
|
error = sockopt_setint(sopt, so->so_snd.sb_hiwat); |
|
break; |
|
|
|
case SO_RCVBUF: |
|
error = sockopt_setint(sopt, so->so_rcv.sb_hiwat); |
|
break; |
|
|
|
case SO_SNDLOWAT: |
|
error = sockopt_setint(sopt, so->so_snd.sb_lowat); |
|
break; |
|
|
|
case SO_RCVLOWAT: |
|
error = sockopt_setint(sopt, so->so_rcv.sb_lowat); |
|
break; |
|
|
|
#ifdef COMPAT_50 |
|
case SO_OSNDTIMEO: |
|
case SO_ORCVTIMEO: { |
|
struct timeval50 otv; |
|
|
|
optval = (opt == SO_OSNDTIMEO ? |
|
so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
|
|
|
otv.tv_sec = optval / hz; |
|
otv.tv_usec = (optval % hz) * tick; |
|
|
|
error = sockopt_set(sopt, &otv, sizeof(otv)); |
|
break; |
|
} |
|
#endif /* COMPAT_50 */ |
|
|
|
case SO_SNDTIMEO: |
|
case SO_RCVTIMEO: |
|
optval = (opt == SO_SNDTIMEO ? |
|
so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
|
|
|
tv.tv_sec = optval / hz; |
|
tv.tv_usec = (optval % hz) * tick; |
|
|
|
error = sockopt_set(sopt, &tv, sizeof(tv)); |
|
break; |
|
|
|
case SO_OVERFLOWED: |
|
error = sockopt_setint(sopt, so->so_rcv.sb_overflowed); |
|
break; |
|
|
|
default: |
|
error = ENOPROTOOPT; |
|
break; |
|
} |
|
|
|
return (error); |
|
} |
|
|
|
int |
|
sogetopt(struct socket *so, struct sockopt *sopt) |
{ |
{ |
struct mbuf *m; |
|
int error; |
int error; |
|
|
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); |
} |
|
sounlock(so); |
|
return (error); |
|
} |
|
|
switch (optname) { |
/* |
|
* alloc sockopt data buffer buffer |
|
* - will be released at destroy |
|
*/ |
|
static int |
|
sockopt_alloc(struct sockopt *sopt, size_t len, km_flag_t kmflag) |
|
{ |
|
|
case SO_LINGER: |
KASSERT(sopt->sopt_size == 0); |
m->m_len = sizeof(struct linger); |
|
mtod(m, struct linger *)->l_onoff = |
|
(so->so_options & SO_LINGER) ? 1 : 0; |
|
mtod(m, struct linger *)->l_linger = so->so_linger; |
|
break; |
|
|
|
case SO_USELOOPBACK: |
if (len > sizeof(sopt->sopt_buf)) { |
case SO_DONTROUTE: |
sopt->sopt_data = kmem_zalloc(len, kmflag); |
case SO_DEBUG: |
if (sopt->sopt_data == NULL) |
case SO_KEEPALIVE: |
return ENOMEM; |
case SO_REUSEADDR: |
} else |
case SO_REUSEPORT: |
sopt->sopt_data = sopt->sopt_buf; |
case SO_BROADCAST: |
|
case SO_OOBINLINE: |
|
case SO_TIMESTAMP: |
|
*mtod(m, int *) = (so->so_options & optname) ? 1 : 0; |
|
break; |
|
|
|
case SO_TYPE: |
sopt->sopt_size = len; |
*mtod(m, int *) = so->so_type; |
return 0; |
break; |
} |
|
|
case SO_ERROR: |
/* |
*mtod(m, int *) = so->so_error; |
* initialise sockopt storage |
so->so_error = 0; |
* - MAY sleep during allocation |
break; |
*/ |
|
void |
|
sockopt_init(struct sockopt *sopt, int level, int name, size_t size) |
|
{ |
|
|
case SO_SNDBUF: |
memset(sopt, 0, sizeof(*sopt)); |
*mtod(m, int *) = so->so_snd.sb_hiwat; |
|
break; |
|
|
|
case SO_RCVBUF: |
sopt->sopt_level = level; |
*mtod(m, int *) = so->so_rcv.sb_hiwat; |
sopt->sopt_name = name; |
break; |
(void)sockopt_alloc(sopt, size, KM_SLEEP); |
|
} |
|
|
case SO_SNDLOWAT: |
/* |
*mtod(m, int *) = so->so_snd.sb_lowat; |
* destroy sockopt storage |
break; |
* - will release any held memory references |
|
*/ |
|
void |
|
sockopt_destroy(struct sockopt *sopt) |
|
{ |
|
|
case SO_RCVLOWAT: |
if (sopt->sopt_data != sopt->sopt_buf) |
*mtod(m, int *) = so->so_rcv.sb_lowat; |
kmem_free(sopt->sopt_data, sopt->sopt_size); |
break; |
|
|
|
case SO_SNDTIMEO: |
memset(sopt, 0, sizeof(*sopt)); |
case SO_RCVTIMEO: |
} |
{ |
|
int val = (optname == SO_SNDTIMEO ? |
|
so->so_snd.sb_timeo : so->so_rcv.sb_timeo); |
|
|
|
m->m_len = sizeof(struct timeval); |
|
mtod(m, struct timeval *)->tv_sec = val / hz; |
|
mtod(m, struct timeval *)->tv_usec = |
|
(val % hz) * tick; |
|
break; |
|
} |
|
|
|
case SO_OVERFLOWED: |
/* |
*mtod(m, int *) = so->so_rcv.sb_overflowed; |
* set sockopt value |
break; |
* - value is copied into sockopt |
|
* - memory is allocated when necessary, will not sleep |
|
*/ |
|
int |
|
sockopt_set(struct sockopt *sopt, const void *buf, size_t len) |
|
{ |
|
int error; |
|
|
default: |
if (sopt->sopt_size == 0) { |
sounlock(so); |
error = sockopt_alloc(sopt, len, KM_NOSLEEP); |
(void)m_free(m); |
if (error) |
return (ENOPROTOOPT); |
return error; |
|
} |
|
|
|
KASSERT(sopt->sopt_size == len); |
|
memcpy(sopt->sopt_data, buf, len); |
|
return 0; |
|
} |
|
|
|
/* |
|
* 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 |
|
* - will not sleep |
|
*/ |
|
int |
|
sockopt_setmbuf(struct sockopt *sopt, struct mbuf *m) |
|
{ |
|
size_t len; |
|
int error; |
|
|
|
len = m_length(m); |
|
|
|
if (sopt->sopt_size == 0) { |
|
error = sockopt_alloc(sopt, len, KM_NOSLEEP); |
|
if (error) |
|
return error; |
|
} |
|
|
|
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 |
|
* - will not sleep |
|
*/ |
|
struct mbuf * |
|
sockopt_getmbuf(const struct sockopt *sopt) |
|
{ |
|
struct mbuf *m; |
|
|
|
if (sopt->sopt_size > MCLBYTES) |
|
return NULL; |
|
|
|
m = m_get(M_DONTWAIT, MT_SOOPTS); |
|
if (m == NULL) |
|
return NULL; |
|
|
|
if (sopt->sopt_size > MLEN) { |
|
MCLGET(m, M_DONTWAIT); |
|
if ((m->m_flags & M_EXT) == 0) { |
|
m_free(m); |
|
return NULL; |
} |
} |
*mp = m; |
|
error = 0; |
|
} |
} |
|
|
sounlock(so); |
memcpy(mtod(m, void *), sopt->sopt_data, sopt->sopt_size); |
return (error); |
m->m_len = sopt->sopt_size; |
|
|
|
return m; |
} |
} |
|
|
void |
void |
Line 2035 sysctl_kern_somaxkva(SYSCTLFN_ARGS) |
|
Line 2300 sysctl_kern_somaxkva(SYSCTLFN_ARGS) |
|
return (error); |
return (error); |
} |
} |
|
|
SYSCTL_SETUP(sysctl_kern_somaxkva_setup, "sysctl kern.somaxkva setup") |
static void |
|
sysctl_kern_somaxkva_setup() |
{ |
{ |
|
|
sysctl_createv(clog, 0, NULL, NULL, |
KASSERT(socket_sysctllog == 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(clog, 0, NULL, NULL, |
sysctl_createv(&socket_sysctllog, 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 " |