/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1995-2007 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) 1995-1998 Apple Computer, Inc.
- *
* Change Log:
* Created February 20, 1995 by Tuyen Nguyen
* Modified for MP, 1996 by Tuyen Nguyen
#include <machine/spl.h>
#include <sys/systm.h>
#include <sys/kernel.h>
-#include <sys/proc.h>
+#include <sys/proc_internal.h> /* for p_fd in fdflags */
#include <sys/filedesc.h>
#include <sys/fcntl.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
-#include <sys/file.h>
+#include <sys/file_internal.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
+#include <sys/sysproto.h>
+#include <sys/kdebug.h>
#include <net/if_var.h>
#include <netat/sysglue.h>
#include <netat/appletalk.h>
-#include <netat/at_var.h>
#include <netat/at_pcb.h>
+#include <netat/at_var.h>
#include <netat/debug.h>
-int (*sys_ATsocket)() = 0;
-int (*sys_ATgetmsg)() = 0;
-int (*sys_ATputmsg)() = 0;
-int (*sys_ATPsndreq)() = 0;
-int (*sys_ATPsndrsp)() = 0;
-int (*sys_ATPgetreq)() = 0;
-int (*sys_ATPgetrsp)() = 0;
+int falloc_locked(proc_t, struct fileproc **, int *, vfs_context_t, int);
-extern at_state_t at_state; /* global state of AT network */
extern at_ifaddr_t *ifID_home; /* default interface */
+extern lck_mtx_t * atalk_mutex;
+
+#define f_flag f_fglob->fg_flag
+#define f_type f_fglob->fg_type
+#define f_msgcount f_fglob->fg_msgcount
+#define f_cred f_fglob->fg_cred
+#define f_ops f_fglob->fg_ops
+#define f_offset f_fglob->fg_offset
+#define f_data f_fglob->fg_data
+
+
+int _ATkqfilter(struct fileproc *, struct knote *, vfs_context_t);
+int _ATselect(struct fileproc *, int, void *, vfs_context_t);
+int _ATioctl(struct fileproc *, u_long, caddr_t, vfs_context_t);
+int _ATwrite(struct fileproc *, struct uio *, int, vfs_context_t);
+int _ATread(struct fileproc *, struct uio *, int, vfs_context_t);
+int _ATclose(struct fileglob *, vfs_context_t);
-struct ATsocket_args {
- int proto;
-};
int ATsocket(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATsocket_args *uap;
int *retval;
{
int err;
-
- if (sys_ATsocket) {
+ atalk_lock();
+ if (1 /* _ATsocket*/) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
- *retval = (*sys_ATsocket)(uap->proto, &err, proc);
+ *retval = _ATsocket((int)uap->proto, (int *)&err, (void *)proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATgetmsg_args {
- int fd;
- void *ctlptr;
- void *datptr;
- int *flags;
-};
int ATgetmsg(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATgetmsg_args *uap;
int *retval;
{
int err;
- if (sys_ATgetmsg) {
+ atalk_lock();
+ if (1 /* _ATgetmsg */) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATgetmsg)(uap->fd, uap->ctlptr, uap->datptr,
+ (*_ATgetmsg)(uap->fd, uap->ctlptr, uap->datptr,
uap->flags, &err, proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATputmsg_args {
- int fd;
- void *ctlptr;
- void *datptr;
- int flags;
-};
int ATputmsg(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATputmsg_args *uap;
int *retval;
{
int err;
- if (sys_ATputmsg) {
+ atalk_lock();
+ if (1 /* _ATputmsg */) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATputmsg)(uap->fd, uap->ctlptr, uap->datptr,
+ _ATputmsg(uap->fd, uap->ctlptr, uap->datptr,
uap->flags, &err, proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATPsndreq_args {
- int fd;
- unsigned char *buf;
- int len;
- int nowait;
-};
int ATPsndreq(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATPsndreq_args *uap;
int *retval;
{
int err;
- if (sys_ATPsndreq) {
+ atalk_lock();
+ if (1 /* _ATPsndreq */) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATPsndreq)(uap->fd, uap->buf, uap->len,
+ _ATPsndreq(uap->fd, uap->buf, uap->len,
uap->nowait, &err, proc);
}
} else {
*retval = -1;
err= ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATPsndrsp_args {
- int fd;
- unsigned char *respbuff;
- int resplen;
- int datalen;
-};
int ATPsndrsp(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATPsndrsp_args *uap;
int *retval;
{
int err;
- if (sys_ATPsndrsp) {
+ atalk_lock();
+ if (1 /*_ATPsndrsp*/) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATPsndrsp)(uap->fd, uap->respbuff,
+ _ATPsndrsp(uap->fd, uap->respbuff,
uap->resplen, uap->datalen, &err, proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATPgetreq_args {
- int fd;
- unsigned char *buf;
- int buflen;
-};
int ATPgetreq(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATPgetreq_args *uap;
int *retval;
{
int err;
- if (sys_ATPgetreq) {
+ atalk_lock();
+ if (1 /* _ATPgetreq */) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATPgetreq)(uap->fd, uap->buf, uap->buflen,
+ _ATPgetreq(uap->fd, uap->buf, uap->buflen,
&err, proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-struct ATPgetrsp_args {
- int fd;
- unsigned char *bdsp;
-};
int ATPgetrsp(proc, uap, retval)
- void *proc;
+ struct proc *proc;
struct ATPgetrsp_args *uap;
int *retval;
{
int err = 0;
- if (sys_ATPgetrsp) {
+ atalk_lock();
+ if (1 /*_ATPgetrsp*/) {
/* required check for all AppleTalk system calls */
if (!(at_state.flags & AT_ST_STARTED) || !ifID_home) {
*retval = -1;
err = ENOTREADY;
} else {
*retval =
- (*sys_ATPgetrsp)(uap->fd, uap->bdsp, &err, proc);
+ _ATPgetrsp(uap->fd, (struct atpBDS *)uap->bdsp, &err, proc);
}
} else {
*retval = -1;
err = ENXIO;
}
+ atalk_unlock();
return err;
}
-int atalk_closeref(fp, grefp)
- struct file *fp;
+int atalk_closeref(fg, grefp)
+ struct fileglob *fg;
gref_t **grefp;
{
- if ((*grefp = (gref_t *)fp->f_data)) {
- fp->f_data = 0;
-/*
- kprintf("atalk_closeref: fp = 0x%x, gref = 0x%x\n", (u_int)fp,
- (u_int)*grefp);
-*/
+ if ((*grefp = (gref_t *)fg->fg_data)) {
+ fg->fg_data = 0;
return(0);
}
return(EBADF);
int *retfd;
struct proc *proc;
{
- extern int _ATread(), _ATwrite(),_ATioctl(), _ATselect(), _ATclose(), _ATkqfilter();
static struct fileops fileops =
- {_ATread, _ATwrite, _ATioctl, _ATselect, _ATclose, _ATkqfilter};
+ {_ATread, _ATwrite, _ATioctl, _ATselect, _ATclose, _ATkqfilter, 0};
int err, fd;
- struct file *fp;
-
- thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
-
- if ((err = falloc(proc, &fp, &fd)) != 0) {
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
+ struct fileproc *fp;
+
+ lck_mtx_assert(atalk_mutex, LCK_MTX_ASSERT_OWNED);
+
+ proc_fdlock(proc);
+ if ((err = falloc_locked(proc, &fp, &fd, vfs_context_current(), 1)) != 0) {
+ proc_fdunlock(proc);
return err;
}
*/
fp->f_type = DTYPE_ATALK+1;
fp->f_ops = &fileops;
- *fdflags(proc, fd) &= ~UF_RESERVED;
- *retfd = fd;
fp->f_data = (void *)gref;
+
+ procfdtbl_releasefd(proc, fd, NULL);
+ *retfd = fd;
+ fp_drop(proc, fd, fp, 1);
+ proc_fdunlock(proc);
/*
kprintf("atalk_openref: fp = 0x%x, gref = 0x%x\n", (u_int)fp, (u_int)gref);
*/
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
return 0;
}
-/* go from file descriptor to gref, which has been saved in fp->f_data */
-int atalk_getref(fp, fd, grefp, proc)
-struct file *fp;
+/*
+ * go from file descriptor to gref, which has been saved in fp->f_data
+ *
+ * This routine returns with an iocount on the fileproc when the fp is null
+ * as it converts fd to fileproc. Callers of this api who pass fp as null
+ * need to drop the iocount when they are done with the fp
+ */
+int atalk_getref(fp, fd, grefp, proc, droponerr)
+struct fileproc *fp;
int fd;
gref_t **grefp;
struct proc *proc;
+int droponerr;
{
- thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
- if (fp == 0) {
- int error = fdgetf(proc, fd, &fp);
+ int error;
- if (error) {
-
- *grefp = (gref_t *) 0;
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
- return EBADF;
- }
- }
- *grefp = (gref_t *)fp->f_data;
- if (*grefp == 0 || *grefp == (gref_t *)(-1)) {
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
- return EBADF;
- }
-
- if ((*grefp)->errno) {
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
- return (int)(*grefp)->errno;
- }
+ proc_fdlock(proc);
+ error = atalk_getref_locked(fp, fd, grefp, proc, droponerr);
+ proc_fdunlock(proc);
+ return error;
+}
- thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
- return 0;
+int atalk_getref_locked(fp, fd, grefp, proc, droponerr)
+struct fileproc *fp;
+int fd;
+gref_t **grefp;
+struct proc *proc;
+int droponerr;
+{
+ lck_mtx_assert(atalk_mutex, LCK_MTX_ASSERT_OWNED);
+ if (fp == 0) {
+ int error = fp_lookup(proc, fd, &fp, 1);
+
+ if (error) {
+
+ *grefp = (gref_t *) 0;
+ return EBADF;
+ }
+ }
+ *grefp = (gref_t *)fp->f_data;
+ if (fp->f_type != (DTYPE_ATALK+1) || *grefp == 0 || *grefp == (gref_t *)(-1)) {
+ if (droponerr)
+ fp_drop(proc, fd, fp, 1);
+ printf("atalk_getref_locked EBADF f_data: %p\n", fp->f_data);
+ return EBADF;
+ }
+
+ if ((*grefp)->errno) {
+ if (droponerr)
+ fp_drop(proc, fd, fp, 1);
+ return (int)(*grefp)->errno;
+ }
+ return 0;
}
projects / apple / xnu.git / blobdiff