version 1.83.2.11, 2005/12/11 10:29:12 |
version 1.86, 2003/09/04 16:44:05 |
Line 90 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 90 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
#include <sys/pool.h> |
#include <sys/pool.h> |
#include <sys/event.h> |
#include <sys/event.h> |
#include <sys/poll.h> |
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#include <uvm/uvm.h> |
#include <uvm/uvm.h> |
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POOL_INIT(socket_pool, sizeof(struct socket), 0, 0, 0, "sockpl", NULL); |
struct pool socket_pool; |
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MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
MALLOC_DEFINE(M_SOOPTS, "soopts", "socket options"); |
MALLOC_DEFINE(M_SONAME, "soname", "socket name"); |
MALLOC_DEFINE(M_SONAME, "soname", "socket name"); |
Line 105 int somaxconn = SOMAXCONN; |
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Line 104 int somaxconn = SOMAXCONN; |
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#ifdef SOSEND_COUNTERS |
#ifdef SOSEND_COUNTERS |
#include <sys/device.h> |
#include <sys/device.h> |
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static struct evcnt sosend_loan_big = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
struct evcnt sosend_loan_big = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
NULL, "sosend", "loan big"); |
NULL, "sosend", "loan big"); |
static struct evcnt sosend_copy_big = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
struct evcnt sosend_copy_big = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
NULL, "sosend", "copy big"); |
NULL, "sosend", "copy big"); |
static struct evcnt sosend_copy_small = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
struct evcnt sosend_copy_small = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
NULL, "sosend", "copy small"); |
NULL, "sosend", "copy small"); |
static struct evcnt sosend_kvalimit = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
struct evcnt sosend_kvalimit = EVCNT_INITIALIZER(EVCNT_TYPE_MISC, |
NULL, "sosend", "kva limit"); |
NULL, "sosend", "kva limit"); |
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#define SOSEND_COUNTER_INCR(ev) (ev)->ev_count++ |
#define SOSEND_COUNTER_INCR(ev) (ev)->ev_count++ |
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EVCNT_ATTACH_STATIC(sosend_loan_big); |
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EVCNT_ATTACH_STATIC(sosend_copy_big); |
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EVCNT_ATTACH_STATIC(sosend_copy_small); |
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EVCNT_ATTACH_STATIC(sosend_kvalimit); |
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#else |
#else |
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#define SOSEND_COUNTER_INCR(ev) /* nothing */ |
#define SOSEND_COUNTER_INCR(ev) /* nothing */ |
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soinit(void) |
soinit(void) |
{ |
{ |
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/* Set the initial adjusted socket buffer size. */ |
pool_init(&socket_pool, sizeof(struct socket), 0, 0, 0, |
if (sb_max_set(sb_max)) |
"sockpl", NULL); |
panic("bad initial sb_max value: %lu", sb_max); |
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#ifdef SOSEND_COUNTERS |
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evcnt_attach_static(&sosend_loan_big); |
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evcnt_attach_static(&sosend_copy_big); |
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evcnt_attach_static(&sosend_copy_small); |
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evcnt_attach_static(&sosend_kvalimit); |
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#endif /* SOSEND_COUNTERS */ |
} |
} |
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#ifdef SOSEND_NO_LOAN |
#ifdef SOSEND_NO_LOAN |
Line 142 int use_sosend_loan = 0; |
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Line 142 int use_sosend_loan = 0; |
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int use_sosend_loan = 1; |
int use_sosend_loan = 1; |
#endif |
#endif |
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static struct simplelock so_pendfree_slock = SIMPLELOCK_INITIALIZER; |
struct mbuf *so_pendfree; |
static struct mbuf *so_pendfree; |
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#ifndef SOMAXKVA |
#ifndef SOMAXKVA |
#define SOMAXKVA (16 * 1024 * 1024) |
#define SOMAXKVA (16 * 1024 * 1024) |
#endif |
#endif |
int somaxkva = SOMAXKVA; |
int somaxkva = SOMAXKVA; |
static int socurkva; |
int socurkva; |
static int sokvawaiters; |
int sokvawaiters; |
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#define SOCK_LOAN_THRESH 4096 |
#define SOCK_LOAN_THRESH 4096 |
#define SOCK_LOAN_CHUNK 65536 |
#define SOCK_LOAN_CHUNK 65536 |
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static size_t sodopendfree(struct socket *); |
static size_t sodopendfree(struct socket *); |
static size_t sodopendfreel(struct socket *); |
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static vsize_t |
vaddr_t |
sokvareserve(struct socket *so, vsize_t len) |
sokvaalloc(vsize_t len, struct socket *so) |
{ |
{ |
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vaddr_t lva; |
int s; |
int s; |
int error; |
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s = splvm(); |
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simple_lock(&so_pendfree_slock); |
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while (socurkva + len > somaxkva) { |
while (socurkva + len > somaxkva) { |
size_t freed; |
if (sodopendfree(so)) |
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/* |
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* try to do pendfree. |
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*/ |
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freed = sodopendfreel(so); |
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/* |
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* if some kva was freed, try again. |
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*/ |
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if (freed) |
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continue; |
continue; |
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SOSEND_COUNTER_INCR(&sosend_kvalimit); |
SOSEND_COUNTER_INCR(&sosend_kvalimit); |
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s = splvm(); |
sokvawaiters++; |
sokvawaiters++; |
error = ltsleep(&socurkva, PVM | PCATCH, "sokva", 0, |
(void) tsleep(&socurkva, PVM, "sokva", 0); |
&so_pendfree_slock); |
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sokvawaiters--; |
sokvawaiters--; |
if (error) { |
splx(s); |
len = 0; |
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break; |
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} |
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} |
} |
socurkva += len; |
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simple_unlock(&so_pendfree_slock); |
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splx(s); |
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return len; |
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} |
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static void |
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sokvaunreserve(vsize_t len) |
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{ |
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int s; |
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s = splvm(); |
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simple_lock(&so_pendfree_slock); |
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socurkva -= len; |
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if (sokvawaiters) |
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wakeup(&socurkva); |
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simple_unlock(&so_pendfree_slock); |
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splx(s); |
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} |
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/* |
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* sokvaalloc: allocate kva for loan. |
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*/ |
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vaddr_t |
lva = uvm_km_valloc_wait(kernel_map, len); |
sokvaalloc(vsize_t len, struct socket *so) |
if (lva == 0) |
{ |
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vaddr_t lva; |
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/* |
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* reserve kva. |
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*/ |
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if (sokvareserve(so, len) == 0) |
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return 0; |
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/* |
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* allocate kva. |
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*/ |
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lva = uvm_km_alloc(kernel_map, len, 0, UVM_KMF_VAONLY | UVM_KMF_WAITVA); |
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if (lva == 0) { |
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sokvaunreserve(len); |
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return (0); |
return (0); |
} |
socurkva += len; |
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return lva; |
return lva; |
} |
} |
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/* |
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* sokvafree: free kva for loan. |
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*/ |
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void |
void |
sokvafree(vaddr_t sva, vsize_t len) |
sokvafree(vaddr_t sva, vsize_t len) |
{ |
{ |
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/* |
uvm_km_free(kernel_map, sva, len); |
* free kva. |
socurkva -= len; |
*/ |
if (sokvawaiters) |
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wakeup(&socurkva); |
uvm_km_free(kernel_map, sva, len, UVM_KMF_VAONLY); |
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/* |
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* unreserve kva. |
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*/ |
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sokvaunreserve(len); |
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} |
} |
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static void |
static void |
Line 294 sodoloanfree(struct vm_page **pgs, caddr |
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Line 223 sodoloanfree(struct vm_page **pgs, caddr |
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static size_t |
static size_t |
sodopendfree(struct socket *so) |
sodopendfree(struct socket *so) |
{ |
{ |
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struct mbuf *m; |
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size_t rv = 0; |
int s; |
int s; |
size_t rv; |
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s = splvm(); |
s = splvm(); |
simple_lock(&so_pendfree_slock); |
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rv = sodopendfreel(so); |
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simple_unlock(&so_pendfree_slock); |
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splx(s); |
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return rv; |
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} |
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/* |
for (;;) { |
* sodopendfreel: free mbufs on "pendfree" list. |
m = so_pendfree; |
* unlock and relock so_pendfree_slock when freeing mbufs. |
if (m == NULL) |
* |
break; |
* => called with so_pendfree_slock held. |
so_pendfree = m->m_next; |
* => called at splvm. |
splx(s); |
*/ |
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static size_t |
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sodopendfreel(struct socket *so) |
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{ |
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size_t rv = 0; |
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LOCK_ASSERT(simple_lock_held(&so_pendfree_slock)); |
rv += m->m_ext.ext_size; |
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sodoloanfree((m->m_flags & M_EXT_PAGES) ? |
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m->m_ext.ext_pgs : NULL, m->m_ext.ext_buf, |
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m->m_ext.ext_size); |
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s = splvm(); |
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pool_cache_put(&mbpool_cache, m); |
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} |
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for (;;) { |
for (;;) { |
struct mbuf *m; |
m = so->so_pendfree; |
struct mbuf *next; |
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m = so_pendfree; |
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if (m == NULL) |
if (m == NULL) |
break; |
break; |
so_pendfree = NULL; |
so->so_pendfree = m->m_next; |
simple_unlock(&so_pendfree_slock); |
splx(s); |
/* XXX splx */ |
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for (; m != NULL; m = next) { |
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next = m->m_next; |
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rv += m->m_ext.ext_size; |
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sodoloanfree((m->m_flags & M_EXT_PAGES) ? |
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m->m_ext.ext_pgs : NULL, m->m_ext.ext_buf, |
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m->m_ext.ext_size); |
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pool_cache_put(&mbpool_cache, m); |
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} |
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/* XXX splvm */ |
rv += m->m_ext.ext_size; |
simple_lock(&so_pendfree_slock); |
sodoloanfree((m->m_flags & M_EXT_PAGES) ? |
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m->m_ext.ext_pgs : NULL, m->m_ext.ext_buf, |
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m->m_ext.ext_size); |
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s = splvm(); |
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pool_cache_put(&mbpool_cache, m); |
} |
} |
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splx(s); |
return (rv); |
return (rv); |
} |
} |
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void |
void |
soloanfree(struct mbuf *m, caddr_t buf, size_t size, void *arg) |
soloanfree(struct mbuf *m, caddr_t buf, size_t size, void *arg) |
{ |
{ |
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struct socket *so = arg; |
int s; |
int s; |
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if (m == NULL) { |
if (m == NULL) { |
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/* |
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* called from MEXTREMOVE. |
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*/ |
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sodoloanfree(NULL, buf, size); |
sodoloanfree(NULL, buf, size); |
return; |
return; |
} |
} |
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/* |
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* postpone freeing mbuf. |
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* |
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* we can't do it in interrupt context |
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* because we need to put kva back to kernel_map. |
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*/ |
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s = splvm(); |
s = splvm(); |
simple_lock(&so_pendfree_slock); |
m->m_next = so->so_pendfree; |
m->m_next = so_pendfree; |
so->so_pendfree = m; |
so_pendfree = m; |
splx(s); |
if (sokvawaiters) |
if (sokvawaiters) |
wakeup(&socurkva); |
wakeup(&socurkva); |
simple_unlock(&so_pendfree_slock); |
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splx(s); |
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} |
} |
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static long |
static long |
Line 405 sosend_loan(struct socket *so, struct ui |
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Line 306 sosend_loan(struct socket *so, struct ui |
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/* XXX KDASSERT */ |
/* XXX KDASSERT */ |
KASSERT(npgs <= M_EXT_MAXPAGES); |
KASSERT(npgs <= M_EXT_MAXPAGES); |
KASSERT(uio->uio_lwp != NULL); |
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lva = sokvaalloc(len, so); |
lva = sokvaalloc(len, so); |
if (lva == 0) |
if (lva == 0) |
return 0; |
return 0; |
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error = uvm_loan(&uio->uio_lwp->l_proc->p_vmspace->vm_map, sva, len, |
error = uvm_loan(&uio->uio_procp->p_vmspace->vm_map, sva, len, |
m->m_ext.ext_pgs, UVM_LOAN_TOPAGE); |
m->m_ext.ext_pgs, UVM_LOAN_TOPAGE); |
if (error) { |
if (error) { |
sokvafree(lva, len); |
sokvafree(lva, len); |
Line 449 sosend_loan(struct socket *so, struct ui |
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Line 349 sosend_loan(struct socket *so, struct ui |
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*/ |
*/ |
/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
socreate(int dom, struct socket **aso, int type, int proto, struct lwp *l) |
socreate(int dom, struct socket **aso, int type, int proto) |
{ |
{ |
const struct protosw *prp; |
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struct socket *so; |
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struct proc *p; |
struct proc *p; |
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struct protosw *prp; |
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struct socket *so; |
int error, s; |
int error, s; |
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p = l->l_proc; |
p = curproc; /* XXX */ |
if (proto) |
if (proto) |
prp = pffindproto(dom, proto, type); |
prp = pffindproto(dom, proto, type); |
else |
else |
Line 480 socreate(int dom, struct socket **aso, i |
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Line 380 socreate(int dom, struct socket **aso, i |
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so->so_mowner = &prp->pr_domain->dom_mowner; |
so->so_mowner = &prp->pr_domain->dom_mowner; |
#endif |
#endif |
if (p != 0) |
if (p != 0) |
so->so_uidinfo = uid_find(p->p_ucred->cr_uid); |
so->so_uid = p->p_ucred->cr_uid; |
else |
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so->so_uidinfo = uid_find(0); |
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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, l); |
(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); |
Line 497 socreate(int dom, struct socket **aso, i |
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Line 395 socreate(int dom, struct socket **aso, i |
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} |
} |
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int |
int |
sobind(struct socket *so, struct mbuf *nam, struct lwp *l) |
sobind(struct socket *so, struct mbuf *nam, struct proc *p) |
{ |
{ |
int s, error; |
int s, error; |
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s = splsoftnet(); |
s = splsoftnet(); |
error = (*so->so_proto->pr_usrreq)(so, PRU_BIND, (struct mbuf *)0, |
error = (*so->so_proto->pr_usrreq)(so, PRU_BIND, (struct mbuf *)0, |
nam, (struct mbuf *)0, l); |
nam, (struct mbuf *)0, p); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 515 solisten(struct socket *so, int backlog) |
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Line 413 solisten(struct socket *so, int backlog) |
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s = splsoftnet(); |
s = splsoftnet(); |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, (struct mbuf *)0, |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct lwp *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
if (error) { |
if (error) { |
splx(s); |
splx(s); |
return (error); |
return (error); |
Line 532 solisten(struct socket *so, int backlog) |
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Line 430 solisten(struct socket *so, int backlog) |
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void |
void |
sofree(struct socket *so) |
sofree(struct socket *so) |
{ |
{ |
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struct mbuf *m; |
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if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
return; |
return; |
Line 544 sofree(struct socket *so) |
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Line 443 sofree(struct socket *so) |
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if (!soqremque(so, 0)) |
if (!soqremque(so, 0)) |
return; |
return; |
} |
} |
if (so->so_rcv.sb_hiwat) |
sbrelease(&so->so_snd); |
(void)chgsbsize(so->so_uidinfo, &so->so_rcv.sb_hiwat, 0, |
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RLIM_INFINITY); |
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if (so->so_snd.sb_hiwat) |
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(void)chgsbsize(so->so_uidinfo, &so->so_snd.sb_hiwat, 0, |
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RLIM_INFINITY); |
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sbrelease(&so->so_snd, so); |
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sorflush(so); |
sorflush(so); |
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while ((m = so->so_pendfree) != NULL) { |
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so->so_pendfree = m->m_next; |
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m->m_next = so_pendfree; |
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so_pendfree = m; |
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} |
pool_put(&socket_pool, so); |
pool_put(&socket_pool, so); |
} |
} |
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Line 603 soclose(struct socket *so) |
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Line 501 soclose(struct socket *so) |
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if (so->so_pcb) { |
if (so->so_pcb) { |
int error2 = (*so->so_proto->pr_usrreq)(so, PRU_DETACH, |
int error2 = (*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 lwp *)0); |
(struct proc *)0); |
if (error == 0) |
if (error == 0) |
error = error2; |
error = error2; |
} |
} |
Line 624 soabort(struct socket *so) |
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Line 522 soabort(struct socket *so) |
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{ |
{ |
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return (*so->so_proto->pr_usrreq)(so, PRU_ABORT, (struct mbuf *)0, |
return (*so->so_proto->pr_usrreq)(so, PRU_ABORT, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct lwp *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
} |
} |
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int |
int |
Line 640 soaccept(struct socket *so, struct mbuf |
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Line 538 soaccept(struct socket *so, struct mbuf |
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if ((so->so_state & SS_ISDISCONNECTED) == 0 || |
if ((so->so_state & SS_ISDISCONNECTED) == 0 || |
(so->so_proto->pr_flags & PR_ABRTACPTDIS) == 0) |
(so->so_proto->pr_flags & PR_ABRTACPTDIS) == 0) |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
(struct mbuf *)0, nam, (struct mbuf *)0, (struct lwp *)0); |
(struct mbuf *)0, nam, (struct mbuf *)0, (struct proc *)0); |
else |
else |
error = ECONNABORTED; |
error = ECONNABORTED; |
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Line 649 soaccept(struct socket *so, struct mbuf |
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Line 547 soaccept(struct socket *so, struct mbuf |
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} |
} |
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int |
int |
soconnect(struct socket *so, struct mbuf *nam, struct lwp *l) |
soconnect(struct socket *so, struct mbuf *nam) |
{ |
{ |
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struct proc *p; |
int s, error; |
int s, error; |
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p = curproc; /* XXX */ |
if (so->so_options & SO_ACCEPTCONN) |
if (so->so_options & SO_ACCEPTCONN) |
return (EOPNOTSUPP); |
return (EOPNOTSUPP); |
s = splsoftnet(); |
s = splsoftnet(); |
Line 668 soconnect(struct socket *so, struct mbuf |
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Line 568 soconnect(struct socket *so, struct mbuf |
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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, l); |
(struct mbuf *)0, nam, (struct mbuf *)0, p); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 681 soconnect2(struct socket *so1, struct so |
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Line 581 soconnect2(struct socket *so1, struct so |
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s = splsoftnet(); |
s = splsoftnet(); |
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 lwp *)0); |
(struct proc *)0); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
Line 702 sodisconnect(struct socket *so) |
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Line 602 sodisconnect(struct socket *so) |
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} |
} |
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 lwp *)0); |
(struct proc *)0); |
bad: |
bad: |
splx(s); |
splx(s); |
sodopendfree(so); |
sodopendfree(so); |
Line 729 sodisconnect(struct socket *so) |
|
Line 629 sodisconnect(struct socket *so) |
|
*/ |
*/ |
int |
int |
sosend(struct socket *so, struct mbuf *addr, struct uio *uio, struct mbuf *top, |
sosend(struct socket *so, struct mbuf *addr, struct uio *uio, struct mbuf *top, |
struct mbuf *control, int flags, struct lwp *l) |
struct mbuf *control, int flags) |
{ |
{ |
struct mbuf **mp, *m; |
|
struct proc *p; |
struct proc *p; |
|
struct mbuf **mp, *m; |
long space, len, resid, clen, mlen; |
long space, len, resid, clen, mlen; |
int error, s, dontroute, atomic; |
int error, s, dontroute, atomic; |
|
|
p = l->l_proc; |
|
sodopendfree(so); |
sodopendfree(so); |
|
|
|
p = curproc; /* XXX */ |
clen = 0; |
clen = 0; |
atomic = sosendallatonce(so) || top; |
atomic = sosendallatonce(so) || top; |
if (uio) |
if (uio) |
Line 759 sosend(struct socket *so, struct mbuf *a |
|
Line 659 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 (p) |
p->p_stats->p_ru.ru_msgsnd++; |
p->p_stats->p_ru.ru_msgsnd++; |
|
if (control) |
if (control) |
clen = control->m_len; |
clen = control->m_len; |
#define snderr(errno) { error = errno; splx(s); goto release; } |
#define snderr(errno) { error = errno; splx(s); goto release; } |
Line 792 sosend(struct socket *so, struct mbuf *a |
|
Line 691 sosend(struct socket *so, struct mbuf *a |
|
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 && |
if (space < resid + clen && uio && |
(atomic || space < so->so_snd.sb_lowat || space < clen)) { |
(atomic || space < so->so_snd.sb_lowat || space < clen)) { |
if (so->so_state & SS_NBIO) |
if (so->so_state & SS_NBIO) |
snderr(EWOULDBLOCK); |
snderr(EWOULDBLOCK); |
Line 875 sosend(struct socket *so, struct mbuf *a |
|
Line 774 sosend(struct socket *so, struct mbuf *a |
|
break; |
break; |
} |
} |
} while (space > 0 && atomic); |
} while (space > 0 && atomic); |
|
|
s = splsoftnet(); |
s = splsoftnet(); |
|
|
if (so->so_state & SS_CANTSENDMORE) |
if (so->so_state & SS_CANTSENDMORE) |
Line 887 sosend(struct socket *so, struct mbuf *a |
|
Line 786 sosend(struct socket *so, struct mbuf *a |
|
so->so_state |= SS_MORETOCOME; |
so->so_state |= SS_MORETOCOME; |
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, curlwp); /* XXX */ |
top, addr, control, p); |
if (dontroute) |
if (dontroute) |
so->so_options &= ~SO_DONTROUTE; |
so->so_options &= ~SO_DONTROUTE; |
if (resid > 0) |
if (resid > 0) |
|
|
soreceive(struct socket *so, struct mbuf **paddr, struct uio *uio, |
soreceive(struct socket *so, struct mbuf **paddr, struct uio *uio, |
struct mbuf **mp0, struct mbuf **controlp, int *flagsp) |
struct mbuf **mp0, struct mbuf **controlp, int *flagsp) |
{ |
{ |
struct lwp *l; |
|
struct mbuf *m, **mp; |
struct mbuf *m, **mp; |
int flags, len, error, s, offset, moff, type, orig_resid; |
int flags, len, error, s, offset, moff, type, orig_resid; |
const struct protosw *pr; |
struct protosw *pr; |
struct mbuf *nextrecord; |
struct mbuf *nextrecord; |
int mbuf_removed = 0; |
int mbuf_removed = 0; |
|
|
Line 944 soreceive(struct socket *so, struct mbuf |
|
Line 842 soreceive(struct socket *so, struct mbuf |
|
mp = mp0; |
mp = mp0; |
type = 0; |
type = 0; |
orig_resid = uio->uio_resid; |
orig_resid = uio->uio_resid; |
l = uio->uio_lwp; |
|
|
|
if (paddr) |
if (paddr) |
*paddr = 0; |
*paddr = 0; |
if (controlp) |
if (controlp) |
Line 961 soreceive(struct socket *so, struct mbuf |
|
Line 857 soreceive(struct socket *so, struct mbuf |
|
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 *)(long)(flags & MSG_PEEK), (struct mbuf *)0, |
(struct mbuf *)0, l); |
(struct proc *)0); |
if (error) |
if (error) |
goto bad; |
goto bad; |
do { |
do { |
Line 979 soreceive(struct socket *so, struct mbuf |
|
Line 875 soreceive(struct socket *so, struct mbuf |
|
*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, l); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
|
|
restart: |
restart: |
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) |
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) |
Line 1052 soreceive(struct socket *so, struct mbuf |
|
Line 948 soreceive(struct socket *so, struct mbuf |
|
* While we process the initial mbufs containing address and control |
* While we process the initial mbufs containing address and control |
* info, we save a copy of m->m_nextpkt into nextrecord. |
* info, we save a copy of m->m_nextpkt into nextrecord. |
*/ |
*/ |
if (l) |
#ifdef notyet /* XXXX */ |
l->l_proc->p_stats->p_ru.ru_msgrcv++; |
if (uio->uio_procp) |
|
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
|
#endif |
KASSERT(m == so->so_rcv.sb_mb); |
KASSERT(m == so->so_rcv.sb_mb); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 1"); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive 1"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive 1"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive 1"); |
Line 1091 soreceive(struct socket *so, struct mbuf |
|
Line 989 soreceive(struct socket *so, struct mbuf |
|
sbfree(&so->so_rcv, m); |
sbfree(&so->so_rcv, m); |
mbuf_removed = 1; |
mbuf_removed = 1; |
if (controlp) { |
if (controlp) { |
struct domain *dom = pr->pr_domain; |
if (pr->pr_domain->dom_externalize && |
if (dom->dom_externalize && l && |
|
mtod(m, struct cmsghdr *)->cmsg_type == |
mtod(m, struct cmsghdr *)->cmsg_type == |
SCM_RIGHTS) |
SCM_RIGHTS) |
error = (*dom->dom_externalize)(m, l); |
error = (*pr->pr_domain->dom_externalize)(m); |
*controlp = m; |
*controlp = m; |
so->so_rcv.sb_mb = m->m_next; |
so->so_rcv.sb_mb = m->m_next; |
m->m_next = 0; |
m->m_next = 0; |
m = so->so_rcv.sb_mb; |
m = so->so_rcv.sb_mb; |
} else { |
} else { |
/* |
|
* Dispose of any SCM_RIGHTS message that went |
|
* through the read path rather than recv. |
|
*/ |
|
if (pr->pr_domain->dom_dispose && |
|
mtod(m, struct cmsghdr *)->cmsg_type == SCM_RIGHTS) |
|
(*pr->pr_domain->dom_dispose)(m); |
|
MFREE(m, so->so_rcv.sb_mb); |
MFREE(m, so->so_rcv.sb_mb); |
m = so->so_rcv.sb_mb; |
m = so->so_rcv.sb_mb; |
} |
} |
Line 1288 soreceive(struct socket *so, struct mbuf |
|
Line 1178 soreceive(struct socket *so, struct mbuf |
|
(*pr->pr_usrreq)(so, PRU_RCVD, |
(*pr->pr_usrreq)(so, PRU_RCVD, |
(struct mbuf *)0, |
(struct mbuf *)0, |
(struct mbuf *)(long)flags, |
(struct mbuf *)(long)flags, |
(struct mbuf *)0, l); |
(struct mbuf *)0, |
|
(struct proc *)0); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive sbwait 2"); |
SBLASTRECORDCHK(&so->so_rcv, "soreceive sbwait 2"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive sbwait 2"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive sbwait 2"); |
error = sbwait(&so->so_rcv); |
error = sbwait(&so->so_rcv); |
Line 1325 soreceive(struct socket *so, struct mbuf |
|
Line 1216 soreceive(struct socket *so, struct mbuf |
|
SBLASTMBUFCHK(&so->so_rcv, "soreceive 4"); |
SBLASTMBUFCHK(&so->so_rcv, "soreceive 4"); |
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, l); |
(struct mbuf *)(long)flags, (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 1333 soreceive(struct socket *so, struct mbuf |
|
Line 1225 soreceive(struct socket *so, struct mbuf |
|
splx(s); |
splx(s); |
goto restart; |
goto restart; |
} |
} |
|
|
if (flagsp) |
if (flagsp) |
*flagsp |= flags; |
*flagsp |= flags; |
release: |
release: |
Line 1345 soreceive(struct socket *so, struct mbuf |
|
Line 1237 soreceive(struct socket *so, struct mbuf |
|
int |
int |
soshutdown(struct socket *so, int how) |
soshutdown(struct socket *so, int how) |
{ |
{ |
const struct protosw *pr; |
struct protosw *pr; |
|
|
pr = so->so_proto; |
pr = so->so_proto; |
if (!(how == SHUT_RD || how == SHUT_WR || how == SHUT_RDWR)) |
if (!(how == SHUT_RD || how == SHUT_WR || how == SHUT_RDWR)) |
Line 1355 soshutdown(struct socket *so, int how) |
|
Line 1247 soshutdown(struct socket *so, int how) |
|
sorflush(so); |
sorflush(so); |
if (how == SHUT_WR || how == SHUT_RDWR) |
if (how == SHUT_WR || how == SHUT_RDWR) |
return (*pr->pr_usrreq)(so, PRU_SHUTDOWN, (struct mbuf *)0, |
return (*pr->pr_usrreq)(so, PRU_SHUTDOWN, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct lwp *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
return (0); |
return (0); |
} |
} |
|
|
|
|
sorflush(struct socket *so) |
sorflush(struct socket *so) |
{ |
{ |
struct sockbuf *sb, asb; |
struct sockbuf *sb, asb; |
const struct protosw *pr; |
struct protosw *pr; |
int s; |
int s; |
|
|
sb = &so->so_rcv; |
sb = &so->so_rcv; |
Line 1383 sorflush(struct socket *so) |
|
Line 1275 sorflush(struct socket *so) |
|
splx(s); |
splx(s); |
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose) |
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose) |
(*pr->pr_domain->dom_dispose)(asb.sb_mb); |
(*pr->pr_domain->dom_dispose)(asb.sb_mb); |
sbrelease(&asb, so); |
sbrelease(&asb); |
} |
} |
|
|
int |
int |
Line 1407 sosetopt(struct socket *so, int level, i |
|
Line 1299 sosetopt(struct socket *so, int level, i |
|
error = EINVAL; |
error = EINVAL; |
goto bad; |
goto bad; |
} |
} |
if (mtod(m, struct linger *)->l_linger < 0 || |
|
mtod(m, struct linger *)->l_linger > (INT_MAX / hz)) { |
|
error = EDOM; |
|
goto bad; |
|
} |
|
so->so_linger = mtod(m, struct linger *)->l_linger; |
so->so_linger = mtod(m, struct linger *)->l_linger; |
/* fall thru... */ |
/* fall thru... */ |
|
|
Line 1462 sosetopt(struct socket *so, int level, i |
|
Line 1349 sosetopt(struct socket *so, int level, i |
|
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) optval, so) == 0) { |
(u_long) optval) == 0) { |
error = ENOBUFS; |
error = ENOBUFS; |
goto bad; |
goto bad; |
} |
} |
Line 1490 sosetopt(struct socket *so, int level, i |
|
Line 1377 sosetopt(struct socket *so, int level, i |
|
case SO_RCVTIMEO: |
case SO_RCVTIMEO: |
{ |
{ |
struct timeval *tv; |
struct timeval *tv; |
int val; |
short val; |
|
|
if (m == NULL || m->m_len < sizeof(*tv)) { |
if (m == NULL || m->m_len < sizeof(*tv)) { |
error = EINVAL; |
error = EINVAL; |
goto bad; |
goto bad; |
} |
} |
tv = mtod(m, struct timeval *); |
tv = mtod(m, struct timeval *); |
if (tv->tv_sec > (INT_MAX - tv->tv_usec / tick) / hz) { |
if (tv->tv_sec > (SHRT_MAX - tv->tv_usec / tick) / hz) { |
error = EDOM; |
error = EDOM; |
goto bad; |
goto bad; |
} |
} |
Line 1607 sogetopt(struct socket *so, int level, i |
|
Line 1494 sogetopt(struct socket *so, int level, i |
|
break; |
break; |
} |
} |
|
|
case SO_OVERFLOWED: |
|
*mtod(m, int *) = so->so_rcv.sb_overflowed; |
|
break; |
|
|
|
default: |
default: |
(void)m_free(m); |
(void)m_free(m); |
return (ENOPROTOOPT); |
return (ENOPROTOOPT); |
Line 1623 sogetopt(struct socket *so, int level, i |
|
Line 1506 sogetopt(struct socket *so, int level, i |
|
void |
void |
sohasoutofband(struct socket *so) |
sohasoutofband(struct socket *so) |
{ |
{ |
fownsignal(so->so_pgid, SIGURG, POLL_PRI, POLLPRI|POLLRDBAND, so); |
struct proc *p; |
|
|
|
if (so->so_pgid < 0) |
|
gsignal(-so->so_pgid, SIGURG); |
|
else if (so->so_pgid > 0 && (p = pfind(so->so_pgid)) != 0) |
|
psignal(p, SIGURG); |
selwakeup(&so->so_rcv.sb_sel); |
selwakeup(&so->so_rcv.sb_sel); |
} |
} |
|
|
Line 1647 filt_soread(struct knote *kn, long hint) |
|
Line 1535 filt_soread(struct knote *kn, long hint) |
|
so = (struct socket *)kn->kn_fp->f_data; |
so = (struct socket *)kn->kn_fp->f_data; |
kn->kn_data = so->so_rcv.sb_cc; |
kn->kn_data = so->so_rcv.sb_cc; |
if (so->so_state & SS_CANTRCVMORE) { |
if (so->so_state & SS_CANTRCVMORE) { |
kn->kn_flags |= EV_EOF; |
kn->kn_flags |= EV_EOF; |
kn->kn_fflags = so->so_error; |
kn->kn_fflags = so->so_error; |
return (1); |
return (1); |
} |
} |
Line 1678 filt_sowrite(struct knote *kn, long hint |
|
Line 1566 filt_sowrite(struct knote *kn, long hint |
|
so = (struct socket *)kn->kn_fp->f_data; |
so = (struct socket *)kn->kn_fp->f_data; |
kn->kn_data = sbspace(&so->so_snd); |
kn->kn_data = sbspace(&so->so_snd); |
if (so->so_state & SS_CANTSENDMORE) { |
if (so->so_state & SS_CANTSENDMORE) { |
kn->kn_flags |= EV_EOF; |
kn->kn_flags |= EV_EOF; |
kn->kn_fflags = so->so_error; |
kn->kn_fflags = so->so_error; |
return (1); |
return (1); |
} |
} |
Line 1703 filt_solisten(struct knote *kn, long hin |
|
Line 1591 filt_solisten(struct knote *kn, long hin |
|
/* |
/* |
* Set kn_data to number of incoming connections, not |
* Set kn_data to number of incoming connections, not |
* counting partial (incomplete) connections. |
* counting partial (incomplete) connections. |
*/ |
*/ |
kn->kn_data = so->so_qlen; |
kn->kn_data = so->so_qlen; |
return (kn->kn_data > 0); |
return (kn->kn_data > 0); |
} |
} |
Line 1742 soo_kqfilter(struct file *fp, struct kno |
|
Line 1630 soo_kqfilter(struct file *fp, struct kno |
|
return (0); |
return (0); |
} |
} |
|
|
#include <sys/sysctl.h> |
|
|
|
static int sysctl_kern_somaxkva(SYSCTLFN_PROTO); |
|
|
|
/* |
|
* sysctl helper routine for kern.somaxkva. ensures that the given |
|
* value is not too small. |
|
* (XXX should we maybe make sure it's not too large as well?) |
|
*/ |
|
static int |
|
sysctl_kern_somaxkva(SYSCTLFN_ARGS) |
|
{ |
|
int error, new_somaxkva; |
|
struct sysctlnode node; |
|
int s; |
|
|
|
new_somaxkva = somaxkva; |
|
node = *rnode; |
|
node.sysctl_data = &new_somaxkva; |
|
error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
|
if (error || newp == NULL) |
|
return (error); |
|
|
|
if (new_somaxkva < (16 * 1024 * 1024)) /* sanity */ |
|
return (EINVAL); |
|
|
|
s = splvm(); |
|
simple_lock(&so_pendfree_slock); |
|
somaxkva = new_somaxkva; |
|
wakeup(&socurkva); |
|
simple_unlock(&so_pendfree_slock); |
|
splx(s); |
|
|
|
return (error); |
|
} |
|
|
|
SYSCTL_SETUP(sysctl_kern_somaxkva_setup, "sysctl kern.somaxkva setup") |
|
{ |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "kern", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_KERN, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
|
CTLTYPE_INT, "somaxkva", |
|
SYSCTL_DESCR("Maximum amount of kernel memory to be " |
|
"used for socket buffers"), |
|
sysctl_kern_somaxkva, 0, NULL, 0, |
|
CTL_KERN, KERN_SOMAXKVA, CTL_EOL); |
|
} |
|