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[PATCH] libtrivfs variable -> functions
|
From: |
Neal H Walfield |
|
Subject: |
[PATCH] libtrivfs variable -> functions |
|
Date: |
Tue, 27 Feb 2001 16:10:19 +0100 |
|
User-agent: |
Mutt/1.3.12i |
This patch turns the variables in libtrivfs into function calls.
Thus, when writing a translator, it is no longer required to
say:
error_t open_check_hook (...)
{
...
}
(error_t) (*trivfs_open_check_hook) (...) = open_check_hook;
Instead, one can say:
error_t trivfs_open_check (...)
{
...
}
This patch also contains the code to fix all translators effected
by this change -- I have been running it for over a week with no
problems.
-Neal
diff -Nur hurd-20010115-snapshot/libtrivfs/ChangeLog
hurd-20010115/libtrivfs/ChangeLog
--- hurd-20010115-snapshot/libtrivfs/ChangeLog Fri Mar 17 12:22:56 2000
+++ hurd-20010115/libtrivfs/ChangeLog Sun Feb 25 05:15:49 2001
@@ -1,3 +1,50 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * trivfs.h: (trivfs_check_access_hook): Renamed to remove _hook
+ suffix. Changed from a variable to a function.
+ (trivfs_check_open_hook): Likewise.
+ (trivfs_protid_create_hook): Likewise.
+ (trivfs_peropen_create_hook): Likewise.
+ (trivfs_protid_destroy_hook): Likewise.
+ (trivfs_peropen_destroy_hook): Likewise.
+ (trivfs_getroot_hook): Likewise.
+ (trivfs_open_hook): Likewise. Overrides definition of trivfs_open.
+ * check-access.c: New file.
+ (trivfs_check_access): New function. Provide default behavior.
+ * user-hooks.c: New file.
+ (trivfs_check_open): New function. Weak alias to
+ _trivfs_user_undefined.
+ (trivfs_protid_create): Likewise.
+ (trivfs_peropen_create): Likewise.
+ (trivfs_protid_destroy): Likewise.
+ (trivfs_peropen_destroy): Likewise.
+ (trivfs_getroot): Likewise.
+ (_trivfs_user_undefined): New empty function.
+ * priv.h (FUNC_DEFINED): New macro. Determine if the supplied
+ function is defined by the user (i.e. if it is equal to
+ _trivfs_user_undefined).
+ * open.c (_trivfs_open): Renamed from trivfs_open.
+ (trivfs_open): Aliased to _trivfs_open. Take a new parameter,
+ dotdot to match the obsolete trivfs_open_hook prototype.
+ * dir-lookup.c (trivfs_S_dir_lookup): Update calls to *_hook
+ to reflect new calling conventions.
+ * file-access.c (trivfs_S_file_check_access): Likewise.
+ * fsys-getroot.c (trivfs_S_getroot): Likewise.
+ * io_reauthenticate.c (trivfs_S_io_reauthenticate): Likewise.
+ * io_restrict_auth.c (trivfs_S_io_restrict_auth): Likewise.
+ * open.c (_trivfs_open): Likewise.
+ * protid-clean.c (trivfs_clean_protid): Likewise.
+ * protid-dup.c (trivfs_protid_dup): Likewise.
+
+ * Makefile (OTHERSRCS): Add check-access.c user-hooks.c
+
+ * fsys-getroot.c (trivfs_S_getroot): Always deallocate dotdot.
+
+ * open.c: Remove unnecessary include <string.h>
+
+ * trivfs.h: Regularize and improve documentation as suggested
+ in doc/hurd.texi.
+
2000-03-17 Thomas Bushnell, BSG <tb@mit.edu>
* startup.c (trivfs_startup): Don't use MAKE_SEND in Hurd RPC.
diff -Nur hurd-20010115-snapshot/libtrivfs/Makefile
hurd-20010115/libtrivfs/Makefile
--- hurd-20010115-snapshot/libtrivfs/Makefile Mon Sep 13 02:34:06 1999
+++ hurd-20010115/libtrivfs/Makefile Sun Feb 25 05:15:56 2001
@@ -1,5 +1,5 @@
#
-# Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation
+# Copyright (C) 1994, 1995, 1996, 1997, 1999, 2001 Free Software Foundation
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
@@ -39,7 +39,7 @@
OTHERSRCS=demuxer.c protid-clean.c protid-dup.c cntl-create.c \
cntl-clean.c migsupport.c times.c startup.c open.c \
runtime-argp.c set-options.c append-args.c dyn-classes.c \
- protid-classes.c cntl-classes.c
+ protid-classes.c cntl-classes.c check-access.c user-hooks.c
SRCS=$(FSSRCS) $(IOSRCS) $(FSYSSRCS) $(OTHERSRCS)
diff -Nur hurd-20010115-snapshot/libtrivfs/check-access.c
hurd-20010115/libtrivfs/check-access.c
--- hurd-20010115-snapshot/libtrivfs/check-access.c Wed Dec 31 19:00:00 1969
+++ hurd-20010115/libtrivfs/check-access.c Sat Feb 24 04:24:04 2001
@@ -0,0 +1,30 @@
+/*
+ Copyright (C) 2001 Free Software Foundation
+
+ Written by Neal H Walfield <neal@cs.uml.edu>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+
+error_t
+trivfs_check_access (struct trivfs_control *cntl,
+ struct iouser *user,
+ mach_port_t realnode,
+ int *allowed)
+{
+ return file_check_access (realnode, allowed);
+}
+
diff -Nur hurd-20010115-snapshot/libtrivfs/dir-lookup.c
hurd-20010115/libtrivfs/dir-lookup.c
--- hurd-20010115-snapshot/libtrivfs/dir-lookup.c Mon Oct 11 04:38:02 1999
+++ hurd-20010115/libtrivfs/dir-lookup.c Sat Feb 24 04:24:24 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1994, 1998, 1999 Free Software Foundation
+ Copyright (C) 1994, 1998, 1999, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -49,23 +49,22 @@
flags &= ~(O_CREAT|O_EXCL|O_NOLINK|O_NOTRANS);
/* Validate permissions */
- if (! trivfs_check_access_hook)
- file_check_access (cred->realnode, &perms);
- else
- (*trivfs_check_access_hook) (cred->po->cntl, cred->user,
- cred->realnode, &perms);
+ trivfs_check_access (cred->po->cntl, cred->user,
+ cred->realnode, &perms);
if ((flags & (O_READ|O_WRITE|O_EXEC) & perms)
!= (flags & (O_READ|O_WRITE|O_EXEC)))
return EACCES;
/* Execute the open */
err = 0;
- if (trivfs_check_open_hook)
- err = (*trivfs_check_open_hook) (cred->po->cntl, cred->user, flags);
+ if (FUNC_DEFINED (trivfs_check_open))
+ err = trivfs_check_open (cred->po->cntl, cred->user, flags);
if (!err)
{
struct iouser *user = iohelp_dup_iouser (cred->user);
- err = trivfs_open (cred->po->cntl, user, flags,
+
+ /* XXX: What should we pass in as dotdot? cred->po->underlying */
+ err = trivfs_open (cred->po->cntl, user, MACH_PORT_NULL, flags,
cred->realnode, &newcred);
if (err)
iohelp_free_iouser (user);
diff -Nur hurd-20010115-snapshot/libtrivfs/file-access.c
hurd-20010115/libtrivfs/file-access.c
--- hurd-20010115-snapshot/libtrivfs/file-access.c Fri Feb 19 02:45:37 1999
+++ hurd-20010115/libtrivfs/file-access.c Sat Feb 24 04:24:35 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1994, 1996 Free Software Foundation
+ Copyright (C) 1994, 1996, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -26,11 +26,8 @@
if (! cred)
return EOPNOTSUPP;
- if (! trivfs_check_access_hook)
- file_check_access (cred->realnode, allowed);
- else
- (*trivfs_check_access_hook) (cred->po->cntl, cred->user,
- cred->realnode, allowed);
+ trivfs_check_access (cred->po->cntl, cred->user,
+ cred->realnode, allowed);
return 0;
}
diff -Nur hurd-20010115-snapshot/libtrivfs/fsys-getroot.c
hurd-20010115/libtrivfs/fsys-getroot.c
--- hurd-20010115-snapshot/libtrivfs/fsys-getroot.c Mon Nov 8 16:52:05 1999
+++ hurd-20010115/libtrivfs/fsys-getroot.c Sun Feb 25 04:11:26 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1993,94,95,97,99 Free Software Foundation, Inc.
+ Copyright (C) 1993,94,95,97,99, 2001 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
@@ -49,11 +49,11 @@
if (!cntl)
return EOPNOTSUPP;
- if (trivfs_getroot_hook)
+ if (FUNC_DEFINED (trivfs_getroot))
{
- err = (*trivfs_getroot_hook) (cntl, reply_port, reply_port_type, dotdot,
- uids, nuids, gids, ngids, flags,
- do_retry, retry_name, newpt, newpttype);
+ err = trivfs_getroot (cntl, reply_port, reply_port_type, dotdot,
+ uids, nuids, gids, ngids, flags,
+ do_retry, retry_name, newpt, newpttype);
if (err != EAGAIN)
return err;
}
@@ -82,27 +82,18 @@
user = iohelp_create_iouser (uvec, gvec); /* XXX check return value? */
/* Validate permissions. */
- if (! trivfs_check_access_hook)
- file_check_access (new_realnode, &perms);
- else
- (*trivfs_check_access_hook) (cntl, user, new_realnode, &perms);
+ trivfs_check_access (cntl, user, new_realnode, &perms);
if ((flags & (O_READ|O_WRITE|O_EXEC) & perms)
!= (flags & (O_READ|O_WRITE|O_EXEC)))
err = EACCES;
- if (!err && trivfs_check_open_hook)
- err = (*trivfs_check_open_hook) (cntl, user, flags);
+ if (!err && FUNC_DEFINED (trivfs_check_open))
+ err = trivfs_check_open (cntl, user, flags);
if (!err)
{
- if (! trivfs_open_hook)
- {
- err = trivfs_open (cntl, user, flags, new_realnode, &cred);
- if (!err)
- mach_port_deallocate (mach_task_self (), dotdot);
- }
- else
- err = (*trivfs_open_hook) (cntl, user, dotdot, flags, new_realnode,
- &cred);
+ err = trivfs_open (cntl, user, dotdot, flags, new_realnode, &cred);
+ if (! err)
+ mach_port_deallocate (mach_task_self (), dotdot);
}
if (err)
diff -Nur hurd-20010115-snapshot/libtrivfs/io-reauthenticate.c
hurd-20010115/libtrivfs/io-reauthenticate.c
--- hurd-20010115-snapshot/libtrivfs/io-reauthenticate.c Fri Mar 17
05:29:22 2000
+++ hurd-20010115/libtrivfs/io-reauthenticate.c Sat Feb 24 04:25:13 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1993,94,95,96,2000 Free Software Foundation, Inc.
+ Copyright (C) 1993,94,95,96,2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
@@ -73,10 +73,10 @@
newcred->user->gids->ids,
newcred->user->gids->num);
while (err == EINTR);
- if (!err && trivfs_protid_create_hook)
+ if (!err && FUNC_DEFINED (trivfs_protid_create))
{
do
- err = (*trivfs_protid_create_hook) (newcred);
+ err = trivfs_protid_create (newcred);
while (err == EINTR);
if (err)
mach_port_deallocate (mach_task_self (), newcred->realnode);
diff -Nur hurd-20010115-snapshot/libtrivfs/io-restrict-auth.c
hurd-20010115/libtrivfs/io-restrict-auth.c
--- hurd-20010115-snapshot/libtrivfs/io-restrict-auth.c Mon Nov 18 18:55:41 1996
+++ hurd-20010115/libtrivfs/io-restrict-auth.c Sat Feb 24 04:25:20 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation
+ Copyright (C) 1993, 1994, 1995, 1996, 2001 Free Software Foundation
This file is part of the GNU Hurd.
@@ -97,9 +97,9 @@
err = io_restrict_auth (cred->realnode, &newcred->realnode,
user->uids->ids, user->uids->num,
user->gids->ids, user->gids->num);
- if (!err && trivfs_protid_create_hook)
+ if (!err && FUNC_DEFINED (trivfs_protid_create))
{
- err = (*trivfs_protid_create_hook) (newcred);
+ err = trivfs_protid_create (newcred);
if (err)
mach_port_deallocate (mach_task_self (), newcred->realnode);
}
diff -Nur hurd-20010115-snapshot/libtrivfs/open.c hurd-20010115/libtrivfs/open.c
--- hurd-20010115-snapshot/libtrivfs/open.c Sat Feb 13 04:13:36 1999
+++ hurd-20010115/libtrivfs/open.c Sat Feb 24 05:05:37 2001
@@ -1,6 +1,6 @@
/* Make a new trivfs peropen/protid
- Copyright (C) 1993, 1994, 1995, 1996, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 1996, 1999, 2001 Free Software Foundation,
Inc.
This file is part of the GNU Hurd.
@@ -18,19 +18,18 @@
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <string.h> /* For bcopy() */
-
#include "priv.h"
/* Return a new protid pointing to a new peropen in CRED, with REALNODE as
the underlying node reference, with the given identity, and open flags in
FLAGS. CNTL is the trivfs control object. */
error_t
-trivfs_open (struct trivfs_control *cntl,
- struct iouser *user,
- unsigned flags,
- mach_port_t realnode,
- struct trivfs_protid **cred)
+_trivfs_open (struct trivfs_control *cntl,
+ struct iouser *user,
+ mach_port_t dotdot,
+ int flags,
+ mach_port_t realnode,
+ struct trivfs_protid **cred)
{
error_t err = 0;
struct trivfs_peropen *po = malloc (sizeof (struct trivfs_peropen));
@@ -45,8 +44,8 @@
po->openmodes = flags;
po->hook = 0;
- if (trivfs_peropen_create_hook)
- err = (*trivfs_peropen_create_hook) (po);
+ if (FUNC_DEFINED (trivfs_peropen_create))
+ err = trivfs_peropen_create (po);
if (!err)
{
struct trivfs_protid *new;
@@ -62,8 +61,8 @@
new->hook = 0;
new->realnode = realnode;
- if (!err && trivfs_protid_create_hook)
- err = (*trivfs_protid_create_hook) (new);
+ if (!err && FUNC_DEFINED (trivfs_protid_create))
+ err = trivfs_protid_create (new);
if (err)
{
@@ -85,3 +84,11 @@
return err;
}
+
+error_t
+trivfs_open (struct trivfs_control *cntl,
+ struct iouser *user,
+ mach_port_t dotdot,
+ int flags,
+ mach_port_t realnode,
+ struct trivfs_protid **cred) __attribute__ ((weak, alias
("_trivfs_open")));
diff -Nur hurd-20010115-snapshot/libtrivfs/priv.h hurd-20010115/libtrivfs/priv.h
--- hurd-20010115-snapshot/libtrivfs/priv.h Wed Feb 19 23:25:31 1997
+++ hurd-20010115/libtrivfs/priv.h Sun Feb 25 04:07:17 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1994, 1997 Free Software Foundation
+ Copyright (C) 1994, 1997, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -16,6 +16,7 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef TRIVFS_PRIV_H_INCLUDED
+#define TRIVFS_PRIV_H_INCLUDED
#include <mach.h>
#include <hurd.h>
@@ -31,6 +32,13 @@
struct trivfs_control *_trivfs_begin_using_control (mach_port_t);
void _trivfs_end_using_control (struct trivfs_control *);
+/* By default, user hooks are aliased to this function. This is used
+ to determine if the funtion has been defined, i.e. we should bother
+ calling it. */
+/* void _trivfs_user_undefined (void); */
+#define FUNC_DEFINED(f) ((void *)(f) != (void *)_trivfs_user_defined)
+void _trivfs_user_defined (void);
+
/* Vectors of dynamically allocated port classes/buckets. */
/* Protid port classes. */
@@ -45,5 +53,4 @@
extern struct port_bucket **trivfs_dynamic_port_buckets;
extern size_t trivfs_num_dynamic_port_buckets;
-#define TRIVFS_PRIV_H_INCLUDED
#endif
diff -Nur hurd-20010115-snapshot/libtrivfs/protid-clean.c
hurd-20010115/libtrivfs/protid-clean.c
--- hurd-20010115-snapshot/libtrivfs/protid-clean.c Mon Nov 18 18:55:50 1996
+++ hurd-20010115/libtrivfs/protid-clean.c Sun Feb 25 04:14:39 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1994, 1995, 1996 Free Software Foundation
+ Copyright (C) 1994, 1995, 1996, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -24,17 +24,18 @@
{
struct trivfs_protid *cred = arg;
- if (trivfs_protid_destroy_hook && cred->realnode != MACH_PORT_NULL)
+ if (FUNC_DEFINED (trivfs_protid_destroy)
+ && cred->realnode != MACH_PORT_NULL)
/* Allow the user to clean up; If the realnode field is null, then CRED
wasn't initialized to the point of needing user cleanup. */
- (*trivfs_protid_destroy_hook) (cred);
+ trivfs_protid_destroy (cred);
/* If we hold the only reference to the peropen, try to get rid of it. */
mutex_lock (&cred->po->cntl->lock);
- if (cred->po->refcnt == 1 && trivfs_peropen_destroy_hook)
+ if (cred->po->refcnt == 1 && FUNC_DEFINED (trivfs_peropen_destroy))
{
mutex_unlock (&cred->po->cntl->lock);
- (*trivfs_peropen_destroy_hook) (cred->po);
+ trivfs_peropen_destroy (cred->po);
mutex_lock (&cred->po->cntl->lock);
}
if (--cred->po->refcnt == 0)
diff -Nur hurd-20010115-snapshot/libtrivfs/protid-dup.c
hurd-20010115/libtrivfs/protid-dup.c
--- hurd-20010115-snapshot/libtrivfs/protid-dup.c Mon Nov 18 18:55:54 1996
+++ hurd-20010115/libtrivfs/protid-dup.c Sat Feb 24 04:26:04 2001
@@ -1,6 +1,6 @@
/* Duplicate a protid
- Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 1996, 2001 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
@@ -18,12 +18,11 @@
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <string.h>
#include "priv.h"
/* Return a duplicate of CRED in DUP, sharing the same peropen and hook. A
non-null hook may be used to detect that this is a duplicate by
- trivfs_protid_create_hook. */
+ trivfs_protid_create. */
error_t
trivfs_protid_dup (struct trivfs_protid *cred, struct trivfs_protid **dup)
{
@@ -50,8 +49,8 @@
new->hook = cred->hook;
- if (trivfs_protid_create_hook)
- err = (*trivfs_protid_create_hook) (new);
+ if (FUNC_DEFINED (trivfs_protid_create))
+ err = trivfs_protid_create (new);
if (err)
{
mach_port_deallocate (mach_task_self (), new->realnode);
diff -Nur hurd-20010115-snapshot/libtrivfs/trivfs.h
hurd-20010115/libtrivfs/trivfs.h
--- hurd-20010115-snapshot/libtrivfs/trivfs.h Mon Oct 11 03:42:23 1999
+++ hurd-20010115/libtrivfs/trivfs.h Sun Feb 25 04:00:45 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation
+ Copyright (C) 1994, 1995, 1996, 1997, 1999, 2001 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -31,7 +31,7 @@
struct iouser *user;
int isroot;
/* REALNODE will be null if this protid wasn't fully created (currently
- only in the case where trivfs_protid_create_hook returns an error). */
+ only in the case where trivfs_protid_create returns an error). */
mach_port_t realnode; /* restricted permissions */
void *hook; /* for user use */
struct trivfs_peropen *po;
@@ -67,93 +67,115 @@
struct trivfs_control *trivfs_begin_using_control (mach_port_t);
void trivfs_end_using_control (struct trivfs_control *);
+
+/* Definitions provided by the user. */
-/* The user must define these variables. */
+/* The user must define this variable to the file system type.
+ See <hurd/hurd_types.h> for a list of types. */
extern int trivfs_fstype;
+
+/* The user must define this variable to the file system id.
+ This is normally, the translator's pid. */
extern int trivfs_fsid;
-/* Set these if trivfs should allow read, write,
- or execute of file. */
+/* The user must define these variables. They should reflect if
+ trivfs should allow reading, writing, or execution of file
+ respectively. */
extern int trivfs_support_read;
extern int trivfs_support_write;
extern int trivfs_support_exec;
-/* Set this some combination of O_READ, O_WRITE, and O_EXEC;
- trivfs will only allow opens of the specified modes.
- (trivfs_support_* is not used to validate opens, only actual
- operations.) */
+/* The user must define this variable. It is expected to be set to
+ some combination of O_READ, O_WRITE, and O_EXEC; trivfs will only
+ allow opens of the specified modes (The trivfs_support_* variables
+ are not used to validate opens, only actual operations). */
extern int trivfs_allow_open;
-/* If the user defines these, they should be vectors (and the associated
- sizes) of port classes that will be translated into control & protid
- pointers for passing to rpcs, in addition to those passed to or created by
- trivfs_create_control (or trivfs_startup) will automatically be
- recognized. */
+/* The user may define these variables. If so, they should be vectors
+ and their associated sizes of port classes that will be translated into
+ control & protid pointers for passing to rpcs, in addition to those
+ passed to or created by trivfs_create_control (or trivfs_startup)
+ will automatically be recognized. */
extern struct port_class *trivfs_protid_portclasses[];
extern int trivfs_protid_nportclasses;
extern struct port_class *trivfs_cntl_portclasses[];
extern int trivfs_cntl_nportclasses;
-/* The user must define this function. This should modify a struct
- stat (as returned from the underlying node) for presentation to
- callers of io_stat. It is permissable for this function to do
- nothing. */
+/* The user must define this function. This function is expected to
+ modify a struct stat (as returned from the underlying node) for
+ presentation to callers of io_stat. It is permissable for this
+ function to do nothing. */
void trivfs_modify_stat (struct trivfs_protid *cred, struct stat *);
-/* If this variable is set, it is called to find out what access this
- file permits to USER instead of checking the underlying node.
- REALNODE is the underlying node, and CNTL is the trivfs control
- object. The access permissions are returned in ALLOWED. */
-error_t (*trivfs_check_access_hook) (struct trivfs_control *cntl,
- struct iouser *user,
- mach_port_t realnode,
- int *allowed);
-
-/* If this variable is set, it is called every time an open happens.
- USER and FLAGS are from the open; CNTL identifies the
- node being opened. This call need not check permissions on the underlying
- node. This call can block as necessary, unless O_NONBLOCK is set
- in FLAGS. Any desired error can be returned, which will be reflected
- to the user and prevent the open from succeeding. */
-error_t (*trivfs_check_open_hook) (struct trivfs_control *cntl,
- struct iouser *user, int flags);
-
-/* If this variable is set, it is called in place of `trivfs_open' (below). */
-error_t (*trivfs_open_hook) (struct trivfs_control *fsys,
+/* The user may define this function. This function is called to
+ determine what access this file permits to USER. By default,
+ the underlying node, REALNODE, is checked. CNTL is the trivfs
+ control object. The access permissions are returned in ALLOWED. */
+error_t trivfs_check_access (struct trivfs_control *cntl,
struct iouser *user,
- mach_port_t dotdot,
- int flags,
mach_port_t realnode,
- struct trivfs_protid **cred);
+ int *allowed);
+
+/* The user may define this function. If defined, this function is called
+ each time an open happens. USER and FLAGS are as from the open; CNTL
+ identifies the node being opened. This call need not check permissions
+ on the underlying node. This call can block as necessary, unless
+ O_NONBLOCK is set in FLAGS. Any desired error can be returned, which
+ will be reflected to the user and prevent the open from succeeding. */
+error_t trivfs_check_open (struct trivfs_control *cntl,
+ struct iouser *user, int flags);
+
+/* The user may define this function. If defined, this function is
+ expected to return a new protid pointing to a new peropen in CRED,
+ with REALNODE as the underlying node reference, with the given
+ identity, and open flags in FLAGS. CNTL is the trivfs control
+ object. The default implementation is available as
+ _trivfs_open. */
+error_t trivfs_open (struct trivfs_control *fsys,
+ struct iouser *user,
+ mach_port_t dotdot,
+ int flags,
+ mach_port_t realnode,
+ struct trivfs_protid **cred);
-/* If this variable is set, it is called every time a new protid
- structure is created and initialized. */
-error_t (*trivfs_protid_create_hook) (struct trivfs_protid *);
-
-/* If this variable is set, it is called every time a new peropen
- structure is created and initialized. */
-error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *);
-
-/* If this variable is set, it is called every time a protid structure
- is about to be destroyed. */
-void (*trivfs_protid_destroy_hook) (struct trivfs_protid *);
-
-/* If this variable is set, it is called every time a peropen structure
- is about to be destroyed. */
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *);
-
-/* If this variable is set, it is called by trivfs_S_fsys_getroot before any
- other processing takes place; if the return value is EAGAIN, normal trivfs
- getroot processing continues, otherwise the rpc returns with that return
- value. */
-error_t (*trivfs_getroot_hook) (struct trivfs_control *cntl,
- mach_port_t reply_port,
- mach_msg_type_name_t reply_port_type,
- mach_port_t dotdot,
- uid_t *uids, u_int nuids, uid_t *gids, u_int
ngids,
- int flags,
- retry_type *do_retry, char *retry_name,
- mach_port_t *node, mach_msg_type_name_t
*node_type);
+/* The user may define this function. If defined, this function is
+ called each time a new protid structure is created and initialized. */
+error_t trivfs_protid_create (struct trivfs_protid *);
+
+/* The user may define this function. If defined, this function is
+ called each time a new peropen structure is created and initialized. */
+error_t trivfs_peropen_create (struct trivfs_peropen *);
+
+/* The user may define this function. If defined, this function is
+ called each time a protid structure is about to be destroyed. */
+void trivfs_protid_destroy (struct trivfs_protid *);
+
+/* The user may define this function. If defined, this function is
+ called each time a peropen structure is about to be destroyed. */
+void trivfs_peropen_destroy (struct trivfs_peropen *);
+
+/* The user may define this function. If defined, this function is
+ is called by trivfs_S_fsys_getroot before any processing takes
+ place; if the return value is EAGAIN, normal trivfs getroot processing
+ continues, otherwise the rpc returns with that return value. */
+error_t trivfs_getroot (struct trivfs_control *cntl,
+ mach_port_t reply_port,
+ mach_msg_type_name_t reply_port_type,
+ mach_port_t dotdot,
+ uid_t *uids, u_int nuids,
+ uid_t *gids, u_int ngids,
+ int flags,
+ retry_type *do_retry, char *retry_name,
+ mach_port_t *node,
+ mach_msg_type_name_t *node_type);
+
+/* The user must define this function. This function is expected
+ to shutdown the translator (i.e. exit). FLAGS are from the set
+ FSYS_GOAWAY_* (See <hurd/hurd_types.h>). */
+error_t trivfs_goaway (struct trivfs_control *cntl, int flags);
+
+
+/* Definitions provided by trivfs. */
/* Creates a control port for this filesystem and sends it to BOOTSTRAP with
fsys_startup. CONTROL_CLASS & CONTROL_BUCKET are passed to the ports
@@ -170,7 +192,15 @@
struct port_bucket *protid_bucket,
struct trivfs_control **control);
-/* Create a new trivfs control port, with underlying node UNDERLYING, and
+/* Default implementation of trivfs_open. */
+error_t _trivfs_open (struct trivfs_control *fsys,
+ struct iouser *user,
+ mach_port_t dotdot,
+ int flags,
+ mach_port_t realnode,
+ struct trivfs_protid **cred);
+
+/* Create a new trivfs control port with underlying node UNDERLYING, and
return it in CONTROL. CONTROL_CLASS & CONTROL_BUCKET are passed to
the ports library to create the control port, and PROTID_CLASS &
PROTID_BUCKET are used when creating ports representing opens of this
@@ -185,36 +215,23 @@
struct trivfs_control **control);
/* Install these as libports cleanroutines for trivfs_protid_class
- and trivfs_cntl_class respectively. */
+ and trivfs_cntl_class respectively. */
void trivfs_clean_protid (void *);
void trivfs_clean_cntl (void *);
-/* This demultiplees messages for trivfs ports. */
+/* This demultiplexes messages for trivfs ports. */
int trivfs_demuxer (mach_msg_header_t *, mach_msg_header_t *);
-/* Return a new protid pointing to a new peropen in CRED, with REALNODE as
- the underlying node reference, with the given identity, and open flags in
- FLAGS. CNTL is the trivfs control object. */
-error_t trivfs_open (struct trivfs_control *fsys,
- struct iouser *user,
- unsigned flags,
- mach_port_t realnode,
- struct trivfs_protid **cred);
-
/* Return a duplicate of CRED in DUP, sharing the same peropen and hook. A
non-null hook may be used to detect that this is a duplicate by
- trivfs_peropen_create_hook. */
+ trivfs_peropen_create. */
error_t trivfs_protid_dup (struct trivfs_protid *cred,
struct trivfs_protid **dup);
-/* The user must define this function. Someone wants the filesystem
- CNTL to go away. FLAGS are from the set FSYS_GOAWAY_*. */
-error_t trivfs_goaway (struct trivfs_control *cntl, int flags);
-
/* Call this to set atime for the node to the current time. */
error_t trivfs_set_atime (struct trivfs_control *cntl);
-/* Call this to set mtime for the node to the current time. */
+/* Call this to set mtime for the node to the current time. */
error_t trivfs_set_mtime (struct trivfs_control *cntl);
/* If this is defined or set to an argp structure, it will be used by the
diff -Nur hurd-20010115-snapshot/libtrivfs/user-hooks.c
hurd-20010115/libtrivfs/user-hooks.c
--- hurd-20010115-snapshot/libtrivfs/user-hooks.c Wed Dec 31 19:00:00 1969
+++ hurd-20010115/libtrivfs/user-hooks.c Sun Feb 25 04:02:05 2001
@@ -0,0 +1,63 @@
+/*
+ Copyright (C) 2001 Free Software Foundation
+
+ Written by Neal H Walfield <neal@cs.uml.edu>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+#include <assert.h>
+
+void _trivfs_user_defined (void)
+{
+ assert (! "_trivfs_user_defined called!");
+}
+
+/* The default version of these functions should never be called
+ directly. */
+error_t
+trivfs_check_open (struct trivfs_control *cntl,
+ struct iouser *user, int flags)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
+error_t
+trivfs_protid_create (struct trivfs_protid *)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
+error_t
+trivfs_peropen_create (struct trivfs_peropen *)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
+void
+trivfs_protid_destroy (struct trivfs_protid *)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
+void
+trivfs_peropen_destroy (struct trivfs_peropen *)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
+error_t
+trivfs_getroot (struct trivfs_control *cntl,
+ mach_port_t reply_port,
+ mach_msg_type_name_t reply_port_type,
+ mach_port_t dotdot,
+ uid_t *uids, u_int nuids,
+ uid_t *gids, u_int ngids,
+ int flags,
+ retry_type *do_retry, char *retry_name,
+ mach_port_t *node,
+ mach_msg_type_name_t *node_type)
+ __attribute__ ((weak, alias ("_trivfs_user_defined")));
+
diff -Nur hurd-20010115-snapshot/trans/ChangeLog hurd-20010115/trans/ChangeLog
--- hurd-20010115-snapshot/trans/ChangeLog Sun Jan 14 15:44:27 2001
+++ hurd-20010115/trans/ChangeLog Sun Feb 25 05:19:33 2001
@@ -1,3 +1,26 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * fifo.c: Conform to the new trivfs_*_hook semantics
+ * firmlink.c: Likewise.
+ * hello-mt.c: Likewise.
+ * magic.c: Likewise.
+ * new-fifo.c: Likewise.
+ * streamio.c: Likewise.
+
+ * hello-mt.c: Documentation fixes. Do not define _GNU_SOURCE.
+ * hello.c: Likewise.
+
+ * streamio.c: Documentation fixes.
+ (parse_opt): Be more careful with strtoul.
+
+ * magic.c (trivfs_open_hook): Do not dereference dotdot,
+ trivfs does this automatically.
+
+2001-01-17 Neal H Walfield <neal@cs.uml.edu>
+
+ * pump.c (start_pfinet): Conform to new fshelp_start_translator
+ symantics.
+
2001-01-13 Marcus Brinkmann <marcus@gnu.org>
* Makefile (SRCS): Add streamio.c
@@ -7,7 +30,7 @@
(OBJS): Add missing object files to list (crashServer.o
crash_replyUser.o msgServer.o device_replyServer.o).
- * storeio.c: New file by OKUJI Yoshinori.
+ * steamio.c: New file by OKUJI Yoshinori.
2000-07-26 Mark Kettenis <kettenis@gnu.org>
diff -Nur hurd-20010115-snapshot/trans/fifo.c hurd-20010115/trans/fifo.c
--- hurd-20010115-snapshot/trans/fifo.c Mon Sep 13 02:34:44 1999
+++ hurd-20010115/trans/fifo.c Sun Feb 25 04:33:51 2001
@@ -1,6 +1,6 @@
/* A translator for fifos
- Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
@@ -113,8 +113,8 @@
/* ---------------------------------------------------------------- */
-static error_t
-open_hook (struct trivfs_peropen *po)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *po)
{
error_t err = 0;
int flags = po->openmodes;
@@ -211,8 +211,8 @@
return err;
}
-static void
-close_hook (struct trivfs_peropen *po)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *po)
{
int was_active, detach = 0;
int flags = po->openmodes;
@@ -258,9 +258,6 @@
int trivfs_support_exec = 0;
int trivfs_allow_open = O_READ | O_WRITE;
-
-error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *) = open_hook;
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) = close_hook;
void
trivfs_modify_stat (struct trivfs_protid *cred, struct stat *st)
diff -Nur hurd-20010115-snapshot/trans/firmlink.c hurd-20010115/trans/firmlink.c
--- hurd-20010115-snapshot/trans/firmlink.c Tue Aug 31 22:18:12 1999
+++ hurd-20010115/trans/firmlink.c Sun Feb 25 04:47:59 2001
@@ -1,6 +1,6 @@
/* A translator for `firmlinks'
- Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
@@ -132,14 +132,14 @@
/* Return the root node of our file system: A firmlink to TARGET, unless
TARGET doesn't exist, in which case we return a symlink-like node. */
-static error_t
-getroot (struct trivfs_control *cntl,
- mach_port_t reply_port, mach_msg_type_name_t reply_port_type,
- mach_port_t dotdot,
- uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
- int flags,
- retry_type *do_retry, char *retry_name,
- mach_port_t *node, mach_msg_type_name_t *node_type)
+error_t
+trivfs_getroot (struct trivfs_control *cntl,
+ mach_port_t reply_port, mach_msg_type_name_t reply_port_type,
+ mach_port_t dotdot,
+ uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
+ int flags,
+ retry_type *do_retry, char *retry_name,
+ mach_port_t *node, mach_msg_type_name_t *node_type)
{
error_t err = firmlink (dotdot, target, flags, node);
@@ -156,11 +156,6 @@
return err;
}
-
-/* Called by trivfs_S_fsys_getroot before any other processing takes place;
- if the return value is EAGAIN, normal trivfs getroot processing continues,
- otherwise the rpc returns with that return value. */
-error_t (*trivfs_getroot_hook) () = getroot;
void
trivfs_modify_stat (struct trivfs_protid *cred, struct stat *st)
diff -Nur hurd-20010115-snapshot/trans/hello-mt.c hurd-20010115/trans/hello-mt.c
--- hurd-20010115-snapshot/trans/hello-mt.c Mon Nov 8 16:40:22 1999
+++ hurd-20010115/trans/hello-mt.c Sun Feb 25 04:34:54 2001
@@ -1,5 +1,5 @@
/* hello-mt.c - A trivial single-file translator, multithreaded version
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -15,8 +15,6 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
-#define _GNU_SOURCE 1
-
#include <hurd/trivfs.h>
#include <stdio.h>
#include <argp.h>
@@ -61,7 +59,7 @@
$
For that reason, you should run this as an active translator
- `settrans -ac testnode /path/to/thello' so that you can see the
+ `settrans -ac testnode /path/to/hello' so that you can see the
error messages when they appear. */
/* A hook for us to keep track of the file descriptor state. */
@@ -86,9 +84,8 @@
exit (0);
}
-
-static error_t
-open_hook (struct trivfs_peropen *peropen)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *peropen)
{
struct open *op = malloc (sizeof (struct open));
if (op == NULL)
@@ -101,17 +98,15 @@
return 0;
}
-
-static void
-close_hook (struct trivfs_peropen *peropen)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *peropen)
{
struct open *op = peropen->hook;
mutex_clear (&op->lock);
free (op);
}
-
-
+
/* Read data from an IO object. If offset is -1, read from the object
maintained file pointer. If the object is not seekable, offset is
ignored. The amount desired to be read is in AMOUNT. */
@@ -202,16 +197,6 @@
return err;
}
-
-
-/* If this variable is set, it is called every time a new peropen
- structure is created and initialized. */
-error_t (*trivfs_peropen_create_hook)(struct trivfs_peropen *) = open_hook;
-
-/* If this variable is set, it is called every time a peropen structure
- is about to be destroyed. */
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) = close_hook;
-
/* Options processing. We accept the same options on the command line
and from fsys_set_options. */
diff -Nur hurd-20010115-snapshot/trans/hello.c hurd-20010115/trans/hello.c
--- hurd-20010115-snapshot/trans/hello.c Mon Nov 8 16:40:27 1999
+++ hurd-20010115/trans/hello.c Sun Feb 25 04:35:56 2001
@@ -1,5 +1,5 @@
/* hello.c - A trivial single-file translator
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
Gordon Matzigkeit <gord@fig.org>, 1999
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -15,8 +15,6 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
-#define _GNU_SOURCE 1
-
#include <hurd/trivfs.h>
#include <stdio.h>
#include <argp.h>
@@ -56,7 +54,7 @@
$
For that reason, you should run this as an active translator
- `settrans -ac testnode /path/to/thello' so that you can see the
+ `settrans -ac testnode /path/to/hello' so that you can see the
error messages when they appear. */
/* A hook for us to keep track of the file descriptor state. */
@@ -80,9 +78,8 @@
exit (0);
}
-
-static error_t
-open_hook (struct trivfs_peropen *peropen)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *peropen)
{
struct open *op = malloc (sizeof (struct open));
if (op == NULL)
@@ -95,8 +92,8 @@
}
-static void
-close_hook (struct trivfs_peropen *peropen)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *peropen)
{
free (peropen->hook);
}
@@ -178,16 +175,6 @@
return err;
}
-
-
-/* If this variable is set, it is called every time a new peropen
- structure is created and initialized. */
-error_t (*trivfs_peropen_create_hook)(struct trivfs_peropen *) = open_hook;
-
-/* If this variable is set, it is called every time a peropen structure
- is about to be destroyed. */
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) = close_hook;
-
/* Options processing. We accept the same options on the command line
and from fsys_set_options. */
diff -Nur hurd-20010115-snapshot/trans/magic.c hurd-20010115/trans/magic.c
--- hurd-20010115-snapshot/trans/magic.c Mon Oct 11 05:05:42 1999
+++ hurd-20010115/trans/magic.c Sun Feb 25 04:37:38 2001
@@ -1,6 +1,6 @@
/* A translator for returning FS_RETRY_MAGIC strings.
- Copyright (C) 1999 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -85,20 +85,24 @@
/* This hook is used when running without --directory;
it circumvents basically all the trivfs machinery. */
-static error_t
-magic_getroot (struct trivfs_control *cntl,
- mach_port_t reply_port,
- mach_msg_type_name_t reply_port_type,
- mach_port_t dotdot,
- uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
- int flags,
- retry_type *do_retry, char *retry_name,
- mach_port_t *node, mach_msg_type_name_t *node_type)
+error_t
+trivfs_getroot (struct trivfs_control *cntl,
+ mach_port_t reply_port,
+ mach_msg_type_name_t reply_port_type,
+ mach_port_t dotdot,
+ uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
+ int flags,
+ retry_type *do_retry, char *retry_name,
+ mach_port_t *node, mach_msg_type_name_t *node_type)
{
- strcpy (retry_name, magic);
- *do_retry = FS_RETRY_MAGICAL;
- *node = MACH_PORT_NULL;
- *node_type = MACH_MSG_TYPE_COPY_SEND;
+ if (! directory)
+ {
+ strcpy (retry_name, magic);
+ *do_retry = FS_RETRY_MAGICAL;
+ *node = MACH_PORT_NULL;
+ *node_type = MACH_MSG_TYPE_COPY_SEND;
+ }
+
return 0;
}
@@ -107,23 +111,21 @@
the normal trivfs open, but then stash the DOTDOT port
in the trivfs_peropen. */
-static error_t
-magic_open (struct trivfs_control *cntl,
- struct iouser *user,
- mach_port_t dotdot,
- int flags,
- mach_port_t realnode,
- struct trivfs_protid **cred)
+error_t
+trivfs_open (struct trivfs_control *cntl,
+ struct iouser *user,
+ mach_port_t dotdot,
+ int flags,
+ mach_port_t realnode,
+ struct trivfs_protid **cred)
{
- error_t err = trivfs_open (cntl, user, flags, realnode, cred);
- if (!err)
+ error_t err = _trivfs_open (cntl, user, dotdot, flags, realnode, cred);
+ if (!err && directory)
{
(*cred)->po->hook = (void *) dotdot;
err = mach_port_mod_refs (mach_task_self (), dotdot,
MACH_PORT_RIGHT_SEND, +1);
assert_perror (err);
- err = mach_port_deallocate (mach_task_self (), dotdot);
- assert_perror (err);
}
return err;
}
@@ -201,11 +203,8 @@
flags &= ~(O_CREAT|O_EXCL|O_NOLINK|O_NOTRANS);
/* Validate permissions */
- if (! trivfs_check_access_hook)
- file_check_access (cred->realnode, &perms);
- else
- (*trivfs_check_access_hook) (cred->po->cntl, cred->user,
- cred->realnode, &perms);
+ trivfs_check_access (cred->po->cntl, cred->user,
+ cred->realnode, &perms);
if ((flags & (O_READ|O_WRITE|O_EXEC) & perms)
!= (flags & (O_READ|O_WRITE|O_EXEC)))
return EACCES;
@@ -214,8 +213,8 @@
dotdot = (mach_port_t) cred->po->hook;
user = iohelp_dup_iouser (cred->user);
- err = magic_open (cred->po->cntl, user, dotdot, flags,
- cred->realnode, &newcred);
+ err = trivfs_open (cred->po->cntl, user, dotdot, flags,
+ cred->realnode, &newcred);
if (err)
{
iohelp_free_iouser (user);
@@ -353,11 +352,7 @@
d = add (dirbuf, ".");
d = add (d, "..");
dirbufsize = (char *) d - (char *) dirbuf;
-
- trivfs_open_hook = &magic_open;
}
- else
- trivfs_getroot_hook = &magic_getroot;
/* Launch. */
ports_manage_port_operations_one_thread (fsys->pi.bucket, trivfs_demuxer,
diff -Nur hurd-20010115-snapshot/trans/new-fifo.c hurd-20010115/trans/new-fifo.c
--- hurd-20010115-snapshot/trans/new-fifo.c Mon Mar 20 13:15:38 2000
+++ hurd-20010115/trans/new-fifo.c Sun Feb 25 04:39:27 2001
@@ -1,6 +1,6 @@
/* A translator for fifos
- Copyright (C) 1995,96,97,98,2000 Free Software Foundation, Inc.
+ Copyright (C) 1995,96,97,98,2000, 2001 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.org>
This program is free software; you can redistribute it and/or
@@ -366,8 +366,8 @@
}
}
-static error_t
-open_hook (struct trivfs_peropen *po)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *po)
{
struct fifo_trans *trans = po->cntl->hook;
@@ -381,8 +381,8 @@
return 0;
}
-static void
-close_hook (struct trivfs_peropen *po)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *po)
{
struct fifo_trans *trans = po->cntl->hook;
@@ -401,9 +401,6 @@
int trivfs_support_exec = 0;
int trivfs_allow_open = O_READ | O_WRITE;
-
-error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *) = open_hook;
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) = close_hook;
void
trivfs_modify_stat (struct trivfs_protid *cred, struct stat *st)
diff -Nur hurd-20010115-snapshot/trans/streamio.c hurd-20010115/trans/streamio.c
--- hurd-20010115-snapshot/trans/streamio.c Sun Jan 14 15:44:27 2001
+++ hurd-20010115/trans/streamio.c Sat Feb 24 05:23:43 2001
@@ -86,14 +86,14 @@
return b->tail - b->head;
}
-/* Return how much characters can be read from B. */
+/* Return how many characters can be read from B. */
extern inline size_t
buffer_readable (struct buffer *b)
{
return buffer_size (b);
}
-/* Return how much characters can be written to B. */
+/* Return how many characters can be written to B. */
extern inline size_t
buffer_writable (struct buffer *b)
{
@@ -108,7 +108,8 @@
condition_broadcast (b->wait);
}
-/* Read up to LEN bytes from B to DATA, returning the amount actually read. */
+/* Read up to LEN bytes from B into DATA, returning the amount actually
+ read. */
extern inline size_t
buffer_read (struct buffer *b, void *data, size_t len)
{
@@ -133,7 +134,7 @@
return len;
}
-/* Write LEN bytes from DATA to B, returning the amount actually written. */
+/* Write LEN bytes from DATA into B, returning the amount actually written. */
extern inline size_t
buffer_write (struct buffer *b, void *data, size_t len)
{
@@ -162,21 +163,21 @@
/* Read up to AMOUNT bytes, returned in BUF and LEN. If NOWAIT is non-zero
and the buffer is empty, then returns EWOULDBLOCK. If an error occurs,
- the error code is returned, otherwise 0. */
+ the error code is returned, otherwise 0 is returned. */
error_t dev_read (size_t amount, void **buf, size_t *len, int nowait);
/* Return current readable size in AMOUNT. If an error occurs, the error
- code is returned, otherwise 0. */
+ code is returned, otherwise 0 is returned. */
error_t dev_readable (size_t *amount);
/* Write LEN bytes from BUF, returning the amount actually written
- in AMOUNT. If NOWAIT is non-zero and the buffer is full, then returns
- EWOULDBLOCK. If an error occurs, the error code is returned,
- otherwise 0. */
+ in AMOUNT. If NOWAIT is non-zero and the buffer is full, then
+ EWOULDBLOCK is returned. If an error occurs, the error code is
+ returned, otherwise 0 is returned. */
error_t dev_write (void *buf, size_t len, size_t *amount, int nowait);
/* Try and write out any pending writes to the device. If WAIT is non-zero,
- will wait for any activity to cease. */
+ wait for any activity to cease. */
error_t dev_sync (int wait);
@@ -222,14 +223,14 @@
char *end;
rdev = strtoul (start, &end, 0);
- if (*end == ',')
+ if (end && *end == ',')
/* MAJOR,MINOR form */
{
start = end;
rdev = (rdev << 8) + strtoul (start, &end, 0);
}
- if (end == start || *end != '\0')
+ if (! end || end == start || *end != '\0')
{
argp_error (state, "%s: Invalid argument to --rdev", arg);
return EINVAL;
@@ -317,8 +318,8 @@
int trivfs_allow_open = O_READ | O_WRITE;
-static error_t
-open_hook (struct trivfs_control *cntl, struct iouser *user, int flags)
+error_t
+trivfs_check_open (struct trivfs_control *cntl, struct iouser *user, int flags)
{
error_t err;
dev_mode_t mode = D_READ;
@@ -367,12 +368,8 @@
return 0;
}
-error_t (*trivfs_check_open_hook) (struct trivfs_control *,
- struct iouser *, int)
- = open_hook;
-
-static error_t
-po_create_hook (struct trivfs_peropen *po)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *po)
{
mutex_lock (&global_lock);
nperopens++;
@@ -380,11 +377,8 @@
return 0;
}
-error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *) =
- po_create_hook;
-
-static void
-po_destroy_hook (struct trivfs_peropen *po)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *po)
{
mutex_lock (&global_lock);
nperopens--;
@@ -399,9 +393,6 @@
mutex_unlock (&global_lock);
}
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *)
- = po_destroy_hook;
-
void
trivfs_modify_stat (struct trivfs_protid *cred, struct stat *st)
{
@@ -649,7 +640,7 @@
{
error_t err;
- if (!cred)
+ if (! cred)
return EOPNOTSUPP;
mutex_lock (&global_lock);
@@ -665,7 +656,7 @@
{
error_t err;
- if (!cred)
+ if (! cred)
return EOPNOTSUPP;
mutex_lock (&global_lock);
diff -Nur hurd-20010115-snapshot/exec/ChangeLog hurd-20010115/exec/ChangeLog
--- hurd-20010115-snapshot/exec/ChangeLog Sun Oct 1 17:06:28 2000
+++ hurd-20010115/exec/ChangeLog Sun Feb 25 04:58:11 2001
@@ -1,3 +1,7 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * main.c (S_exec_init): Update to use new trivfs_open prototype.
+
2000-10-01 Roland McGrath <roland@frob.com>
* exec.c: Comments.
diff -Nur hurd-20010115-snapshot/exec/main.c hurd-20010115/exec/main.c
--- hurd-20010115-snapshot/exec/main.c Mon Mar 20 13:14:14 2000
+++ hurd-20010115/exec/main.c Sun Feb 25 04:56:22 2001
@@ -1,6 +1,6 @@
/* GNU Hurd standard exec server, main program and server mechanics.
- Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999, 2000 Free Software
Foundation, Inc.
+ Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999, 2000, 2001 Free Software
Foundation, Inc.
Written by Roland McGrath.
This file is part of the GNU Hurd.
@@ -231,6 +231,7 @@
err = trivfs_open (fsys,
iohelp_create_iouser (make_idvec (), make_idvec ()),
+ /* XXX */ MACH_PORT_NULL,
0, MACH_PORT_NULL, &cred);
assert_perror (err);
diff -Nur hurd-20010115-snapshot/pfinet/ChangeLog hurd-20010115/pfinet/ChangeLog
--- hurd-20010115-snapshot/pfinet/ChangeLog Thu Jan 11 17:28:29 2001
+++ hurd-20010115/pfinet/ChangeLog Sun Feb 25 04:59:51 2001
@@ -1,3 +1,7 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * tunnel.c: Use new trivfs semantics.
+
2001-01-07 Marcus Brinkmann <marcus@gnu.org>
* pfinet-ops.c: New file to implement hurd/pfinet.defs.
diff -Nur hurd-20010115-snapshot/pfinet/tunnel.c hurd-20010115/pfinet/tunnel.c
--- hurd-20010115-snapshot/pfinet/tunnel.c Thu Nov 30 14:10:04 2000
+++ hurd-20010115/pfinet/tunnel.c Sun Feb 25 05:06:58 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1995,96,98,99,2000 Free Software Foundation, Inc.
+ Copyright (C) 1995,96,98,99,2000, 2001 Free Software Foundation, Inc.
Written by Michael I. Bushnell, p/BSG.
This file is part of the GNU Hurd.
@@ -224,10 +224,10 @@
/* If a new open with read and/or write permissions is requested,
restrict to exclusive usage. */
-static error_t
-check_open_hook (struct trivfs_control *cntl,
- struct iouser *user,
- int flags)
+error_t
+trivfs_check_open (struct trivfs_control *cntl,
+ struct iouser *user,
+ int flags)
{
struct tunnel_device *tdev;
@@ -247,8 +247,8 @@
/* When a protid is destroyed, check if it is the current user.
If yes, release the interface for other users. */
-static void
-pi_destroy_hook (struct trivfs_protid *cred)
+void
+trivfs_protid_destroy (struct trivfs_protid *cred)
{
struct tunnel_device *tdev;
@@ -260,16 +260,6 @@
if (tdev->user == cred->user)
tdev->user = 0;
}
-
-/* If this variable is set, it is called every time a new peropen
- structure is created and initialized. */
-error_t (*trivfs_check_open_hook)(struct trivfs_control *,
- struct iouser *, int)
- = check_open_hook;
-
-/* If this variable is set, it is called every time a protid structure
- is about to be destroyed. */
-void (*trivfs_protid_destroy_hook) (struct trivfs_protid *) = pi_destroy_hook;
/* Read data from an IO object. If offset is -1, read from the object
maintained file pointer. If the object is not seekable, offset is
diff -Nur hurd-20010115-snapshot/storeio/ChangeLog
hurd-20010115/storeio/ChangeLog
--- hurd-20010115-snapshot/storeio/ChangeLog Wed Jul 26 08:22:03 2000
+++ hurd-20010115/storeio/ChangeLog Sun Feb 25 05:01:22 2001
@@ -1,3 +1,7 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * io.c: Use new trivfs semantics.
+
2000-07-26 Mark Kettenis <kettenis@gnu.org>
* Makefile (HURDLIBS): Reorder libs such that the threads lib
diff -Nur hurd-20010115-snapshot/storeio/io.c hurd-20010115/storeio/io.c
--- hurd-20010115-snapshot/storeio/io.c Sun Mar 19 15:56:46 2000
+++ hurd-20010115/storeio/io.c Sun Feb 25 05:07:33 2001
@@ -1,6 +1,6 @@
/* The hurd io interface to storeio
- Copyright (C) 1995,96,97,99,2000 Free Software Foundation, Inc.
+ Copyright (C) 1995,96,97,99,2000, 2001 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.org>
This program is free software; you can redistribute it and/or
@@ -266,7 +266,7 @@
}
}
-/* File syncing operations; these all do the same thing, sync the underlying
+/* File syncing operations; these all do the same thing -- sync the underlying
device. */
error_t
diff -Nur hurd-20010115-snapshot/storeio/storeio.c
hurd-20010115/storeio/storeio.c
--- hurd-20010115-snapshot/storeio/storeio.c Sun Mar 19 15:55:45 2000
+++ hurd-20010115/storeio/storeio.c Sat Feb 24 09:11:46 2001
@@ -180,19 +180,19 @@
/* Called whenever a new lookup is done of our node. The only reason we
set this hook is to duplicate the check done normally done against
trivfs_allow_open in trivfs_S_fsys_getroot, but looking at the
- per-device state. This gets checked again in check_open_hook, but this
+ per-device state. This gets checked again in trivfs_check_open, but this
hook runs before a little but more overhead gets incurred. In the
success case, we just return EAGAIN to have trivfs_S_fsys_getroot
continue with its generic processing. */
-static error_t
-getroot_hook (struct trivfs_control *cntl,
- mach_port_t reply_port,
- mach_msg_type_name_t reply_port_type,
- mach_port_t dotdot,
- uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
- int flags,
- retry_type *do_retry, char *retry_name,
- mach_port_t *node, mach_msg_type_name_t *node_type)
+error_t
+trivfs_getroot (struct trivfs_control *cntl,
+ mach_port_t reply_port,
+ mach_msg_type_name_t reply_port_type,
+ mach_port_t dotdot,
+ uid_t *uids, u_int nuids, uid_t *gids, u_int ngids,
+ int flags,
+ retry_type *do_retry, char *retry_name,
+ mach_port_t *node, mach_msg_type_name_t *node_type)
{
struct dev *const dev = cntl->hook;
return (dev_is_readonly (dev) && (flags & O_WRITE)) ? EROFS : EAGAIN;
@@ -201,10 +201,10 @@
/* Called whenever someone tries to open our node (even for a stat). We
delay opening the kernel device until this point, as we can usefully
return errors from here. */
-static error_t
-check_open_hook (struct trivfs_control *trivfs_control,
- struct iouser *user,
- int flags)
+error_t
+trivfs_check_open (struct trivfs_control *trivfs_control,
+ struct iouser *user,
+ int flags)
{
struct dev *const dev = trivfs_control->hook;
error_t err = 0;
@@ -219,7 +219,7 @@
err = dev_open (dev);
if (err && (flags & (O_READ|O_WRITE)) == 0)
/* If we're not opening for read or write, then just ignore the
- error, as this allows stat to word correctly. XXX */
+ error, as this allows stat to work correctly. XXX */
err = 0;
}
mutex_unlock (&dev->lock);
@@ -227,8 +227,8 @@
return err;
}
-static error_t
-open_hook (struct trivfs_peropen *peropen)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *peropen)
{
struct dev *const dev = peropen->cntl->hook;
if (dev->store)
@@ -237,8 +237,8 @@
return 0;
}
-static void
-close_hook (struct trivfs_peropen *peropen)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *peropen)
{
if (peropen->hook)
open_free (peropen->hook);
@@ -307,7 +307,7 @@
if (device->store == NULL)
/* The device is not actually open.
- XXX note that exitting here nukes non-io users, like someone
+ XXX note that exiting here nukes non-io users, like someone
in the middle of a stat who will get SIGLOST or something. */
exit (0);
@@ -353,41 +353,6 @@
/* Complain that there are still users. */
return EBUSY;
}
-
-/* If this variable is set, it is called by trivfs_S_fsys_getroot before any
- other processing takes place; if the return value is EAGAIN, normal trivfs
- getroot processing continues, otherwise the rpc returns with that return
- value. */
-error_t (*trivfs_getroot_hook) (struct trivfs_control *cntl,
- mach_port_t reply_port,
- mach_msg_type_name_t reply_port_type,
- mach_port_t dotdot,
- uid_t *uids, u_int nuids, uid_t *gids, u_int
ngids,
- int flags,
- retry_type *do_retry, char *retry_name,
- mach_port_t *node, mach_msg_type_name_t
*node_type)
- = getroot_hook;
-
-/* If this variable is set, it is called every time an open happens.
- USER and FLAGS are from the open; CNTL identifies the
- node being opened. This call need not check permissions on the underlying
- node. If the open call should block, then return EWOULDBLOCK. Other
- errors are immediately reflected to the user. If O_NONBLOCK
- is not set in FLAGS and EWOULDBLOCK is returned, then call
- trivfs_complete_open when all pending open requests for this
- file can complete. */
-error_t (*trivfs_check_open_hook)(struct trivfs_control *trivfs_control,
- struct iouser *user,
- int flags)
- = check_open_hook;
-
-/* If this variable is set, it is called every time a new peropen
- structure is created and initialized. */
-error_t (*trivfs_peropen_create_hook)(struct trivfs_peropen *) = open_hook;
-
-/* If this variable is set, it is called every time a peropen structure
- is about to be destroyed. */
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *) = close_hook;
/* Sync this filesystem. */
kern_return_t
diff -Nur hurd-20010115-snapshot/term/ChangeLog hurd-20010115/term/ChangeLog
--- hurd-20010115-snapshot/term/ChangeLog Wed Jul 26 08:22:49 2000
+++ hurd-20010115/term/ChangeLog Sun Feb 25 05:05:11 2001
@@ -1,3 +1,9 @@
+2001-02-23 Neal H Walfield <neal@cs.uml.edu>
+
+ * users.c: Use new trivfs semantics.
+ (trivfs_check_open): bzero -> memset.
+ (S_term_open_ctty): Check return of malloc.
+
2000-07-26 Mark Kettenis <kettenis@gnu.org>
* Makefile (HURDLIBS): Reorder libs such that the threads lib
diff -Nur hurd-20010115-snapshot/term/users.c hurd-20010115/term/users.c
--- hurd-20010115-snapshot/term/users.c Fri Mar 17 05:32:21 2000
+++ hurd-20010115/term/users.c Sun Feb 25 05:07:51 2001
@@ -1,5 +1,5 @@
/*
- Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
+ Copyright (C) 1995,96,97,98,99,2000, 2001 Free Software Foundation, Inc.
Written by Michael I. Bushnell, p/BSG.
This file is part of the GNU Hurd.
@@ -106,11 +106,11 @@
}
-static error_t
-check_access_hook (struct trivfs_control *cntl,
- struct iouser *user,
- mach_port_t realnode,
- int *allowed)
+error_t
+trivfs_check_access (struct trivfs_control *cntl,
+ struct iouser *user,
+ mach_port_t realnode,
+ int *allowed)
{
struct stat st;
@@ -129,14 +129,11 @@
mutex_unlock (&global_lock);
return 0;
}
-error_t (*trivfs_check_access_hook) (struct trivfs_control *, struct iouser *,
- mach_port_t, int *)
- = check_access_hook;
-
-static error_t
-open_hook (struct trivfs_control *cntl,
- struct iouser *user,
- int flags)
+
+error_t
+trivfs_check_open (struct trivfs_control *cntl,
+ struct iouser *user,
+ int flags)
{
static int open_count = 0; /* XXX debugging */
int cancel = 0;
@@ -152,7 +149,7 @@
if (!(termflags & TTY_OPEN))
{
- bzero (&termstate, sizeof termstate);
+ memset (&termstate, 0, sizeof termstate);
/* This is different from BSD: we don't turn on ISTRIP,
and we use CS8 rather than CS7|PARENB. */
@@ -219,12 +216,9 @@
mutex_unlock (&global_lock);
return err;
}
-error_t (*trivfs_check_open_hook) (struct trivfs_control *,
- struct iouser *, int)
- = open_hook;
-static error_t
-pi_create_hook (struct trivfs_protid *cred)
+error_t
+trivfs_protid_create (struct trivfs_protid *cred)
{
if (cred->pi.class == pty_class)
return 0;
@@ -236,10 +230,9 @@
return 0;
}
-error_t (*trivfs_protid_create_hook) (struct trivfs_protid *) = pi_create_hook;
-static void
-pi_destroy_hook (struct trivfs_protid *cred)
+void
+trivfs_protid_destroy (struct trivfs_protid *cred)
{
if (cred->pi.class == pty_class)
return;
@@ -255,10 +248,9 @@
}
mutex_unlock (&global_lock);
}
-void (*trivfs_protid_destroy_hook) (struct trivfs_protid *) = pi_destroy_hook;
-static error_t
-po_create_hook (struct trivfs_peropen *po)
+error_t
+trivfs_peropen_create (struct trivfs_peropen *po)
{
if (po->cntl == ptyctl)
return pty_po_create_hook (po);
@@ -274,11 +266,9 @@
mutex_unlock (&global_lock);
return 0;
}
-error_t (*trivfs_peropen_create_hook) (struct trivfs_peropen *) =
- po_create_hook;
-static void
-po_destroy_hook (struct trivfs_peropen *po)
+void
+trivfs_peropen_destroy (struct trivfs_peropen *po)
{
if (po->cntl == ptyctl)
{
@@ -310,8 +300,6 @@
mutex_unlock (&global_lock);
}
-void (*trivfs_peropen_destroy_hook) (struct trivfs_peropen *)
- = po_destroy_hook;
/* Tell if CRED can do foreground terminal operations */
static inline int
@@ -392,6 +380,7 @@
{
err = trivfs_open (termctl,
iohelp_create_iouser (make_idvec (), make_idvec ()),
+ /* XXX */ MACH_PORT_NULL,
flags, new_realnode, &newcred);
if (!err)
{
@@ -435,6 +424,12 @@
if (!err)
{
struct protid_hook *hook = malloc (sizeof (struct protid_hook));
+ if (! hook)
+ {
+ mutex_unlock (&global_lock);
+ /* XXX: What else do we need to free? */
+ return ENOMEM;
+ }
hook->pid = pid;
hook->pgrp = pgrp;
@@ -442,7 +437,7 @@
if (newcred->hook)
/* We inherited CRED's hook, get rid of our ref to it. */
- pi_destroy_hook (newcred);
+ trivfs_protid_destroy (newcred);
newcred->hook = hook;
*newpt = ports_get_right (newcred);
pgp58Wf3CqlyM.pgp
Description: PGP signature
- [PATCH] libtrivfs variable -> functions,
Neal H Walfield <=