/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1980, 1986, 1993
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/proc.h>
+#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
+#include <kern/locks.h>
#include <net/raw_cb.h>
+lck_mtx_t *raw_mtx; /*### global raw cb mutex for now */
+lck_attr_t *raw_mtx_attr;
+lck_grp_t *raw_mtx_grp;
+lck_grp_attr_t *raw_mtx_grp_attr;
/*
* Initialize raw connection block q.
*/
void
-raw_init()
+raw_init(void)
{
+ raw_mtx_grp_attr = lck_grp_attr_alloc_init();
+
+ raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);
+
+ raw_mtx_attr = lck_attr_alloc_init();
+
+ if ((raw_mtx = lck_mtx_alloc_init(raw_mtx_grp, raw_mtx_attr)) == NULL) {
+ printf("raw_init: can't alloc raw_mtx\n");
+ return;
+ }
LIST_INIT(&rawcb_list);
}
* Raw protocol interface.
*/
void
-raw_input(m0, proto, src, dst)
- struct mbuf *m0;
- register struct sockproto *proto;
- struct sockaddr *src, *dst;
+raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
+ struct sockaddr *dst)
{
- register struct rawcb *rp;
- register struct mbuf *m = m0;
- register int sockets = 0;
+ struct rawcb *rp;
+ struct mbuf *m = m0;
+ int sockets = 0;
struct socket *last;
+ int error;
- last = 0;
+//####LD raw_input is called from many places, input & output path. We have to assume the
+//####LD socket we'll find and need to append to is unlocked.
+//####LD calls from the output (locked) path need to make sure the socket is not locked when
+//####LD we call in raw_input
+ last = NULL;
+ lck_mtx_lock(raw_mtx);
LIST_FOREACH(rp, &rawcb_list, list) {
if (rp->rcb_proto.sp_family != proto->sp_family)
continue;
struct mbuf *n;
n = m_copy(m, 0, (int)M_COPYALL);
if (n) {
+ socket_lock(last, 1);
if (sbappendaddr(&last->so_rcv, src,
- n, (struct mbuf *)0) == 0)
- /* should notify about lost packet */
- m_freem(n);
- else {
+ n, (struct mbuf *)0, &error) != 0) {
sorwakeup(last);
sockets++;
}
+ socket_unlock(last, 1);
}
}
last = rp->rcb_socket;
}
if (last) {
+ socket_lock(last, 1);
if (sbappendaddr(&last->so_rcv, src,
- m, (struct mbuf *)0) == 0)
- m_freem(m);
- else {
+ m, (struct mbuf *)0, &error) != 0) {
sorwakeup(last);
sockets++;
}
+ socket_unlock(last, 1);
} else
m_freem(m);
+ lck_mtx_unlock(raw_mtx);
}
/*ARGSUSED*/
void
-raw_ctlinput(cmd, arg, dummy)
- int cmd;
- struct sockaddr *arg;
- void *dummy;
+raw_ctlinput(int cmd, __unused struct sockaddr *arg, __unused void *dummy)
{
if (cmd < 0 || cmd > PRC_NCMDS)
{
struct rawcb *rp = sotorawcb(so);
+ lck_mtx_t * mutex_held;
+ if (so->so_proto->pr_getlock != NULL)
+ mutex_held = (*so->so_proto->pr_getlock)(so, 0);
+ else
+ mutex_held = so->so_proto->pr_domain->dom_mtx;
+ lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+
if (rp == 0)
return EINVAL;
raw_disconnect(rp);
/* pru_accept is EOPNOTSUPP */
static int
-raw_uattach(struct socket *so, int proto, struct proc *p)
+raw_uattach(struct socket *so, int proto, __unused struct proc *p)
{
struct rawcb *rp = sotorawcb(so);
- int error;
if (rp == 0)
return EINVAL;
-#ifdef __APPLE__
if ((so->so_state & SS_PRIV) == 0)
return (EPERM);
-#else
- if (p && (error = suser(p)) != 0)
- return error;
-#endif
return raw_attach(so, proto);
}
static int
-raw_ubind(struct socket *so, struct sockaddr *nam, struct proc *p)
+raw_ubind(__unused struct socket *so, __unused struct sockaddr *nam, __unused struct proc *p)
{
return EINVAL;
}
static int
-raw_uconnect(struct socket *so, struct sockaddr *nam, struct proc *p)
+raw_uconnect(__unused struct socket *so, __unused struct sockaddr *nam, __unused struct proc *p)
{
return EINVAL;
}
{
struct rawcb *rp = sotorawcb(so);
+ lck_mtx_t * mutex_held;
+ if (so->so_proto->pr_getlock != NULL)
+ mutex_held = (*so->so_proto->pr_getlock)(so, 0);
+ else
+ mutex_held = so->so_proto->pr_domain->dom_mtx;
+ lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
if (rp == 0)
return EINVAL;
static int
raw_usend(struct socket *so, int flags, struct mbuf *m,
- struct sockaddr *nam, struct mbuf *control, struct proc *p)
+ struct sockaddr *nam, struct mbuf *control, __unused struct proc *p)
{
int error;
struct rawcb *rp = sotorawcb(so);
+ lck_mtx_t * mutex_held;
+ if (so->so_proto->pr_getlock != NULL)
+ mutex_held = (*so->so_proto->pr_getlock)(so, 0);
+ else
+ mutex_held = so->so_proto->pr_domain->dom_mtx;
+ lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+
if (rp == 0) {
error = EINVAL;
goto release;
error = (*so->so_proto->pr_output)(m, so);
m = NULL;
if (nam)
- rp->rcb_faddr = 0;
+ rp->rcb_faddr = NULL;
release:
if (m != NULL)
m_freem(m);
raw_ushutdown(struct socket *so)
{
struct rawcb *rp = sotorawcb(so);
+ lck_mtx_t * mutex_held;
+ if (so->so_proto->pr_getlock != NULL)
+ mutex_held = (*so->so_proto->pr_getlock)(so, 0);
+ else
+ mutex_held = so->so_proto->pr_domain->dom_mtx;
+ lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
if (rp == 0)
return EINVAL;
pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
- raw_usockaddr, sosend, soreceive, sopoll
+ raw_usockaddr, sosend, soreceive, pru_sopoll_notsupp
};
projects / apple / xnu.git / blobdiff