| version 1.116, 2006/03/01 12:38:21 |
version 1.116.2.3, 2006/06/26 12:52:57 |
| Line 91 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| Line 91 __KERNEL_RCSID(0, "$NetBSD$"); |
|
| #include <sys/pool.h> |
#include <sys/pool.h> |
| #include <sys/event.h> |
#include <sys/event.h> |
| #include <sys/poll.h> |
#include <sys/poll.h> |
| |
#include <sys/kauth.h> |
| |
|
| #include <uvm/uvm.h> |
#include <uvm/uvm.h> |
| |
|
| Line 126 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
|
| Line 127 EVCNT_ATTACH_STATIC(sosend_kvalimit); |
|
| |
|
| #endif /* SOSEND_COUNTERS */ |
#endif /* SOSEND_COUNTERS */ |
| |
|
| void |
static struct callback_entry sokva_reclaimerentry; |
| soinit(void) |
|
| { |
|
| |
|
| /* Set the initial adjusted socket buffer size. */ |
|
| if (sb_max_set(sb_max)) |
|
| panic("bad initial sb_max value: %lu", sb_max); |
|
| |
|
| } |
|
| |
|
| #ifdef SOSEND_NO_LOAN |
#ifdef SOSEND_NO_LOAN |
| int use_sosend_loan = 0; |
int sock_loan_thresh = -1; |
| #else |
#else |
| int use_sosend_loan = 1; |
int sock_loan_thresh = 4096; |
| #endif |
#endif |
| |
|
| static struct simplelock so_pendfree_slock = SIMPLELOCK_INITIALIZER; |
static struct simplelock so_pendfree_slock = SIMPLELOCK_INITIALIZER; |
| Line 152 int somaxkva = SOMAXKVA; |
|
| Line 145 int somaxkva = SOMAXKVA; |
|
| static int socurkva; |
static int socurkva; |
| static int sokvawaiters; |
static int sokvawaiters; |
| |
|
| #define SOCK_LOAN_THRESH 4096 |
|
| #define SOCK_LOAN_CHUNK 65536 |
#define SOCK_LOAN_CHUNK 65536 |
| |
|
| static size_t sodopendfree(struct socket *); |
static size_t sodopendfree(void); |
| static size_t sodopendfreel(struct socket *); |
static size_t sodopendfreel(void); |
| |
|
| static vsize_t |
static vsize_t |
| sokvareserve(struct socket *so, vsize_t len) |
sokvareserve(struct socket *so, vsize_t len) |
| Line 173 sokvareserve(struct socket *so, vsize_t |
|
| Line 165 sokvareserve(struct socket *so, vsize_t |
|
| * try to do pendfree. |
* try to do pendfree. |
| */ |
*/ |
| |
|
| freed = sodopendfreel(so); |
freed = sodopendfreel(); |
| |
|
| /* |
/* |
| * if some kva was freed, try again. |
* if some kva was freed, try again. |
| Line 292 sodoloanfree(struct vm_page **pgs, caddr |
|
| Line 284 sodoloanfree(struct vm_page **pgs, caddr |
|
| } |
} |
| |
|
| static size_t |
static size_t |
| sodopendfree(struct socket *so) |
sodopendfree() |
| { |
{ |
| int s; |
int s; |
| size_t rv; |
size_t rv; |
| |
|
| s = splvm(); |
s = splvm(); |
| simple_lock(&so_pendfree_slock); |
simple_lock(&so_pendfree_slock); |
| rv = sodopendfreel(so); |
rv = sodopendfreel(); |
| simple_unlock(&so_pendfree_slock); |
simple_unlock(&so_pendfree_slock); |
| splx(s); |
splx(s); |
| |
|
| Line 315 sodopendfree(struct socket *so) |
|
| Line 307 sodopendfree(struct socket *so) |
|
| */ |
*/ |
| |
|
| static size_t |
static size_t |
| sodopendfreel(struct socket *so) |
sodopendfreel() |
| { |
{ |
| size_t rv = 0; |
size_t rv = 0; |
| |
|
| Line 439 sosend_loan(struct socket *so, struct ui |
|
| Line 431 sosend_loan(struct socket *so, struct ui |
|
| return (space); |
return (space); |
| } |
} |
| |
|
| |
static int |
| |
sokva_reclaim_callback(struct callback_entry *ce, void *obj, void *arg) |
| |
{ |
| |
|
| |
KASSERT(ce == &sokva_reclaimerentry); |
| |
KASSERT(obj == NULL); |
| |
|
| |
sodopendfree(); |
| |
if (!vm_map_starved_p(kernel_map)) { |
| |
return CALLBACK_CHAIN_ABORT; |
| |
} |
| |
return CALLBACK_CHAIN_CONTINUE; |
| |
} |
| |
|
| |
void |
| |
soinit(void) |
| |
{ |
| |
|
| |
/* Set the initial adjusted socket buffer size. */ |
| |
if (sb_max_set(sb_max)) |
| |
panic("bad initial sb_max value: %lu", sb_max); |
| |
|
| |
callback_register(&vm_map_to_kernel(kernel_map)->vmk_reclaim_callback, |
| |
&sokva_reclaimerentry, NULL, sokva_reclaim_callback); |
| |
} |
| |
|
| /* |
/* |
| * Socket operation routines. |
* Socket operation routines. |
| * These routines are called by the routines in |
* These routines are called by the routines in |
| Line 459 socreate(int dom, struct socket **aso, i |
|
| Line 477 socreate(int dom, struct socket **aso, i |
|
| prp = pffindproto(dom, proto, type); |
prp = pffindproto(dom, proto, type); |
| else |
else |
| prp = pffindtype(dom, type); |
prp = pffindtype(dom, type); |
| if (prp == 0 || prp->pr_usrreq == 0) |
if (prp == 0) { |
| |
/* no support for domain */ |
| |
if (pffinddomain(dom) == 0) |
| |
return (EAFNOSUPPORT); |
| |
/* no support for socket type */ |
| |
if (proto == 0 && type != 0) |
| |
return (EPROTOTYPE); |
| |
return (EPROTONOSUPPORT); |
| |
} |
| |
if (prp->pr_usrreq == 0) |
| return (EPROTONOSUPPORT); |
return (EPROTONOSUPPORT); |
| if (prp->pr_type != type) |
if (prp->pr_type != type) |
| return (EPROTOTYPE); |
return (EPROTOTYPE); |
| Line 478 socreate(int dom, struct socket **aso, i |
|
| Line 505 socreate(int dom, struct socket **aso, i |
|
| so->so_mowner = &prp->pr_domain->dom_mowner; |
so->so_mowner = &prp->pr_domain->dom_mowner; |
| #endif |
#endif |
| if (l != NULL) { |
if (l != NULL) { |
| uid = l->l_proc->p_ucred->cr_uid; |
uid = kauth_cred_geteuid(l->l_proc->p_cred); |
| } else { |
} else { |
| uid = 0; |
uid = 0; |
| } |
} |
| Line 705 sodisconnect(struct socket *so) |
|
| Line 732 sodisconnect(struct socket *so) |
|
| (struct lwp *)0); |
(struct lwp *)0); |
| bad: |
bad: |
| splx(s); |
splx(s); |
| sodopendfree(so); |
sodopendfree(); |
| return (error); |
return (error); |
| } |
} |
| |
|
| Line 737 sosend(struct socket *so, struct mbuf *a |
|
| Line 764 sosend(struct socket *so, struct mbuf *a |
|
| int error, s, dontroute, atomic; |
int error, s, dontroute, atomic; |
| |
|
| p = l->l_proc; |
p = l->l_proc; |
| sodopendfree(so); |
sodopendfree(); |
| |
|
| clen = 0; |
clen = 0; |
| atomic = sosendallatonce(so) || top; |
atomic = sosendallatonce(so) || top; |
| Line 825 sosend(struct socket *so, struct mbuf *a |
|
| Line 852 sosend(struct socket *so, struct mbuf *a |
|
| mlen = MLEN; |
mlen = MLEN; |
| } |
} |
| MCLAIM(m, so->so_snd.sb_mowner); |
MCLAIM(m, so->so_snd.sb_mowner); |
| if (use_sosend_loan && |
if (sock_loan_thresh >= 0 && |
| uio->uio_iov->iov_len >= SOCK_LOAN_THRESH && |
uio->uio_iov->iov_len >= sock_loan_thresh && |
| space >= SOCK_LOAN_THRESH && |
space >= sock_loan_thresh && |
| (len = sosend_loan(so, uio, m, |
(len = sosend_loan(so, uio, m, |
| space)) != 0) { |
space)) != 0) { |
| SOSEND_COUNTER_INCR(&sosend_loan_big); |
SOSEND_COUNTER_INCR(&sosend_loan_big); |
| Line 955 soreceive(struct socket *so, struct mbuf |
|
| Line 982 soreceive(struct socket *so, struct mbuf |
|
| flags = 0; |
flags = 0; |
| |
|
| if ((flags & MSG_DONTWAIT) == 0) |
if ((flags & MSG_DONTWAIT) == 0) |
| sodopendfree(so); |
sodopendfree(); |
| |
|
| if (flags & MSG_OOB) { |
if (flags & MSG_OOB) { |
| m = m_get(M_WAIT, MT_DATA); |
m = m_get(M_WAIT, MT_DATA); |