diff options
Diffstat (limited to 'examples/kernel-patches')
| -rw-r--r-- | examples/kernel-patches/Will_devps_GoIntoTheKernel | 104 | ||||
| -rw-r--r-- | examples/kernel-patches/devps.patch.9_25_2000 | 1478 |
2 files changed, 0 insertions, 1582 deletions
diff --git a/examples/kernel-patches/Will_devps_GoIntoTheKernel b/examples/kernel-patches/Will_devps_GoIntoTheKernel deleted file mode 100644 index c541c0f8c..000000000 --- a/examples/kernel-patches/Will_devps_GoIntoTheKernel +++ /dev/null @@ -1,104 +0,0 @@ -I have been asked several times whether the devps patch will go into the -mainline Linux kernel. The following emails from Alan Cox and Linus Torvalds -make it clear that it is not going to happen. This does not mean this patch -had no value -- it does. It just means that those that like it get to apply it -themselves... - - -Erik - - -------------------------------- - -From alan@lxorguk.ukuu.org.uk Thu Apr 13 08:07:22 2000 -Return-Path: <alan@lxorguk.ukuu.org.uk> -Delivered-To: andersen@dillweed.dsl.xmission.com -Received: from localhost (dillweed.dsl.xmission.com [10.0.0.1]) - by dillweed.dsl.xmission.com (Postfix) with ESMTP id 1D57A11A4F5 - for <andersen@dillweed.dsl.xmission.com>; Thu, 13 Apr 2000 08:07:22 -0600 (MDT) -Envelope-to: andersen@xmission.com -Received: from mail.xmission.com - by localhost with IMAP (fetchmail-5.3.3) - for andersen@dillweed.dsl.xmission.com (single-drop); Thu, 13 Apr 2000 08:07:22 -0600 (MDT) -Received: from [194.168.151.1] (helo=the-village.bc.nu) - by mail.xmission.com with esmtp (Exim 3.03 #3) - id 12fhQk-0002OZ-00 - for andersen@xmission.com; Thu, 13 Apr 2000 05:05:03 -0600 -Received: from alan by the-village.bc.nu with local (Exim 2.12 #1) - id 12fhQ9-0002nD-00 - for andersen@xmission.com; Thu, 13 Apr 2000 12:04:25 +0100 -Subject: Re: kernel ps drivers [Was: vm locking question] -To: andersen@xmission.com -Date: Thu, 13 Apr 2000 12:04:23 +0100 (BST) -In-Reply-To: <20000412224130.A2748@xmission.com> from "Erik Andersen" at Apr 12, 2000 10:41:30 PM -X-Mailer: ELM [version 2.5 PL1] -MIME-Version: 1.0 -Content-Type: text/plain; charset=us-ascii -Content-Transfer-Encoding: 7bit -Message-Id: <E12fhQ9-0002nD-00@the-village.bc.nu> -From: Alan Cox <alan@lxorguk.ukuu.org.uk> -Status: RO -X-Status: A -Content-Length: 242 -Lines: 6 - -> On the subject of ps, would you be willing to accept my /dev/ps -> patch into the kernel? If no, any suggestions on what should -> be done differently (if anything) to make it worthy of inclusion? - -For 2.2.x no, for 2.3.x ask Linus not me - - -From torvalds@transmeta.com Thu Apr 13 09:18:16 2000 -Return-Path: <torvalds@transmeta.com> -Delivered-To: andersen@dillweed.dsl.xmission.com -Received: from localhost (dillweed.dsl.xmission.com [10.0.0.1]) - by dillweed.dsl.xmission.com (Postfix) with ESMTP id 3776411A3DF - for <andersen@dillweed.dsl.xmission.com>; Thu, 13 Apr 2000 09:18:16 -0600 (MDT) -Envelope-to: andersen@xmission.com -Received: from mail.xmission.com - by localhost with IMAP (fetchmail-5.3.3) - for andersen@dillweed.dsl.xmission.com (single-drop); Thu, 13 Apr 2000 09:18:16 -0600 (MDT) -Received: from [209.10.217.66] (helo=neon-gw.transmeta.com) - by mail.xmission.com with esmtp (Exim 3.03 #3) - id 12flK2-0004dd-00 - for andersen@xmission.com; Thu, 13 Apr 2000 09:14:22 -0600 -Received: (from root@localhost) - by neon-gw.transmeta.com (8.9.3/8.9.3) id IAA18635; - Thu, 13 Apr 2000 08:10:51 -0700 -Received: from mailhost.transmeta.com(10.1.1.15) by neon-gw.transmeta.com via smap (V2.1) - id xma018629; Thu, 13 Apr 00 08:10:25 -0700 -Received: from penguin.transmeta.com (root@penguin.transmeta.com [10.1.2.202]) - by deepthought.transmeta.com (8.9.3/8.9.3) with ESMTP id IAA12264; - Thu, 13 Apr 2000 08:13:53 -0700 (PDT) -Received: from localhost (torvalds@localhost) by penguin.transmeta.com (8.9.3/8.7.3) with ESMTP id IAA02051; Thu, 13 Apr 2000 08:13:53 -0700 -X-Authentication-Warning: penguin.transmeta.com: torvalds owned process doing -bs -Date: Thu, 13 Apr 2000 08:13:53 -0700 (PDT) -From: Linus Torvalds <torvalds@transmeta.com> -To: Erik Andersen <andersen@xmission.com> -Cc: Alan Cox <alan@redhat.com> -Subject: Re: kernel ps drivers [Was: vm locking question] -In-Reply-To: <20000413083127.A976@xmission.com> -Message-ID: <Pine.LNX.4.10.10004130812170.2000-100000@penguin.transmeta.com> -MIME-Version: 1.0 -Content-Type: TEXT/PLAIN; charset=US-ASCII -Status: RO -Content-Length: 659 -Lines: 16 - - - -On Thu, 13 Apr 2000, Erik Andersen wrote: -> -> For 2.3.x would you be willing to accept my /dev/ps driver into the kernel? -> (Assuming I remove the /dev/modules driver (since it was pointed out that there -> is a perfectly good syscall providing that interface). If no, is there anything -> that could be done differently (if anything) to make it worthy of inclusion? - -I do dislike /dev/ps mightily. If the problem is that /proc is too large, -then the right solution is to just clean up /proc. Which is getting done. -And yes, /proc will be larger than /dev/ps, but I still find that -preferable to having two incompatible ways to do the same thing. - - Linus - - diff --git a/examples/kernel-patches/devps.patch.9_25_2000 b/examples/kernel-patches/devps.patch.9_25_2000 deleted file mode 100644 index 086205cf2..000000000 --- a/examples/kernel-patches/devps.patch.9_25_2000 +++ /dev/null @@ -1,1478 +0,0 @@ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/Config.in linux/drivers/char/Config.in ---- linux-2.2.18-9.virgin/drivers/char/Config.in Mon Sep 18 15:02:30 2000 -+++ linux/drivers/char/Config.in Mon Sep 25 16:33:16 2000 -@@ -56,6 +56,8 @@ - dep_tristate 'Microgate SyncLink card support' CONFIG_SYNCLINK m - dep_tristate 'HDLC line discipline support' CONFIG_N_HDLC m - fi -+tristate 'Devps support' CONFIG_DEVPS -+tristate 'Devmounts support' CONFIG_DEVMTAB - bool 'Unix98 PTY support' CONFIG_UNIX98_PTYS - if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then - int 'Maximum number of Unix98 PTYs in use (0-2048)' CONFIG_UNIX98_PTY_COUNT 256 -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/Makefile linux/drivers/char/Makefile ---- linux-2.2.18-9.virgin/drivers/char/Makefile Mon Sep 18 15:02:30 2000 -+++ linux/drivers/char/Makefile Mon Sep 25 18:01:12 2000 -@@ -697,6 +697,22 @@ - M_OBJS += $(sort $(filter $(module-list), $(obj-m))) - - -+ifeq ($(CONFIG_DEVPS),y) -+O_OBJS += devps.o -+else -+ ifeq ($(CONFIG_DEVPS),m) -+ M_OBJS += devps.o -+ endif -+endif -+ -+ifeq ($(CONFIG_DEVMTAB),y) -+O_OBJS += devmtab.o -+else -+ ifeq ($(CONFIG_DEVMTAB),m) -+ M_OBJS += devmtab.o -+ endif -+endif -+ - include $(TOPDIR)/Rules.make - - fastdep: -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/devmtab.c linux/drivers/char/devmtab.c ---- linux-2.2.18-9.virgin/drivers/char/devmtab.c Wed Dec 31 17:00:00 1969 -+++ linux/drivers/char/devmtab.c Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,295 @@ -+/* vi: set sw=8 ts=8: */ -+/* -+ * linux/drivers/char/devmtab.c -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * May be copied or modified under the terms of the GNU General Public License. -+ * See linux/COPYING for more information. -+ * -+ * This driver implements an interface whereby programs such as mount(8), -+ * umount(8), and df(1) may obtain all the process information they need to do -+ * their jobs without needing to use /proc. This driver another step in my -+ * evil plan to completely dismantle /proc. Muhahahaha! -+ * -+ * Suggestions are welcome. Patches that work are more welcome though. ;-) -+ * -+ * -+ * When using this driver, running: -+ * mknod /dev/mtab c 10 22 -+ * could be considered helpful. -+ * -+ * ---------------------------------- -+ * 1.00 Mar 07, 2000 -- Initial version. -+ * -+ *************************************************************************/ -+ -+#define DEVMTAB_VERSION "1.00" -+ -+#include <linux/config.h> -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/mm.h> -+#include <linux/pagemap.h> -+#include <linux/malloc.h> -+#include <linux/miscdevice.h> -+#include <linux/devmtab.h> -+#include <linux/wrapper.h> -+#include <asm/pgtable.h> -+#include <asm/uaccess.h> -+ -+ -+/* Some variables used by this device */ -+static struct wait_queue *devmtab_waitq = NULL; -+static int devmtab_already_opened = 0; -+static char *mtabfile = NULL; -+static int mtab_ptr; -+static int mtab_size; -+ -+ -+ -+/**************************************************************************** -+ * Handle opening and closing of the device -+ */ -+ -+static long long -+devmtab_lseek (struct file *file, long long offset, int orig) -+{ -+ return -ESPIPE; -+} -+ -+static ssize_t -+devmtab_read (struct file *file, char *buf, size_t count, loff_t * ppos) -+{ -+ int n = mtab_size - mtab_ptr; -+ -+ if (mtab_size == 0) { -+ /* Make some space */ -+ if (!(mtabfile = (char *) get_free_page (GFP_KERNEL))) -+ return -ENOMEM; -+ /* Grab the mtab */ -+ get_filesystem_info (mtabfile); -+ mtab_ptr = 0; -+ mtab_size = strlen (mtabfile); -+ n = mtab_size - mtab_ptr; -+ } -+ -+ if (n > count) -+ n = count; -+ if (n <= 0) -+ return 0; -+ -+ if (copy_to_user (buf, mtabfile, n)) -+ return -EFAULT; -+ mtab_ptr += n; -+ return n; -+} -+ -+static int devmtab_open (struct inode *ip, struct file *fp) -+{ -+ /* Only let one process use us at any time -- putting other -+ * processes to sleep. Those opening us O_NONBLOCK will -+ * get an EAGAIN error */ -+ if ((fp->f_flags & O_NONBLOCK) && devmtab_already_opened) -+ return -EAGAIN; -+ -+ MOD_INC_USE_COUNT; -+ -+ while (devmtab_already_opened) { -+ int i, got_signal=0; -+ -+ /* Go to sleep until we get woken up -+ * by devmtab_close or we receive a signal */ -+ module_interruptible_sleep_on(&devmtab_waitq); -+ -+ for(i=0; i<_NSIG_WORDS && !got_signal; i++) -+ got_signal = current->signal.sig[i] & ~current->blocked.sig[i]; -+ -+ /* If we got a signal, decrement the use count -+ * and return to user space */ -+ if (got_signal) { -+ MOD_DEC_USE_COUNT; -+ return -EINTR; -+ } -+ } -+ -+ /* Since we got here, then devmtab_already_opened must equal 0 */ -+ devmtab_already_opened=1; -+ mtab_ptr = 0; -+ mtab_size = 0; -+ -+ return 0; -+} -+ -+static int devmtab_release (struct inode *ip, struct file *fp) -+{ -+ /* Clean up */ -+ if (mtabfile != NULL) { -+ free_page ((unsigned long) mtabfile); -+ mtabfile = NULL; -+ } -+ -+ /* Zero out the reference counter */ -+ devmtab_already_opened=0; -+ -+ /* Wake up anybody that is waiting to access this device */ -+ module_wake_up(&devmtab_waitq); -+ -+ MOD_DEC_USE_COUNT; -+ -+ return 0; -+} -+ -+static int -+devmtab_ioctl (struct inode *ip, struct file *fp, -+ unsigned int cmd, unsigned long arg) -+{ -+ switch (cmd) { -+ case DEVMTAB_COUNT_FILESYSTEMS:{ -+ return(count_kfstypes()); -+ } -+ -+ case DEVMTAB_GET_FILESYSTEMS:{ -+ int stat, count; -+ struct k_fstype* fstypelist; -+ -+ /* How many are there? */ -+ count = count_kfstypes(); -+ -+ /* Make some space */ -+ fstypelist = (struct k_fstype *)kmalloc(sizeof(struct k_fstype) * count, GFP_KERNEL); -+ if (!fstypelist) -+ return -ENOMEM; -+ memset(fstypelist, 0, sizeof(struct k_fstype) * count); -+ -+ /* Grab the mtab entries */ -+ get_kfstype_list(count, fstypelist); -+ -+ /* Make sure there is enough room */ -+ stat = verify_area (VERIFY_WRITE, (struct k_fstype *) arg, -+ sizeof(struct k_fstype) * count); -+ if (stat) { -+ printk (KERN_INFO -+ "devmtab: Insufficient space was provided.\n"); -+ return stat; -+ } -+ -+ /* Send it to user space */ -+ copy_to_user_ret ((struct k_fstype *) arg, fstypelist, -+ sizeof(struct k_fstype) * count, -+ -EFAULT); -+ -+ /* Clean up */ -+ kfree( fstypelist); -+ return 0; -+ } -+ -+ case DEVMTAB_COUNT_MOUNTS:{ -+ return(count_mounted_filesystems()); -+ } -+ -+ case DEVMTAB_GET_MOUNTS:{ -+ int stat, count; -+ struct k_mntent* mntentlist; -+ -+ /* How many are there? */ -+ count = count_mounted_filesystems(); -+ -+ /* Make some space */ -+ mntentlist = (struct k_mntent *)kmalloc(sizeof(struct k_mntent) * count, GFP_KERNEL); -+ if (!mntentlist) -+ return -ENOMEM; -+ memset(mntentlist, 0, sizeof(struct k_mntent) * count); -+ -+ /* Grab the mtab entries */ -+ get_mtab_entries (count, mntentlist); -+ -+ /* Make sure there is enough room */ -+ stat = verify_area (VERIFY_WRITE, (void*) arg, -+ sizeof(struct k_mntent) * count); -+ if (stat) { -+ printk (KERN_INFO -+ "devmtab: Insufficient space was provided.\n"); -+ return stat; -+ } -+ -+ /* Send it to user space */ -+ copy_to_user_ret ((struct k_mntent *) arg, mntentlist, -+ sizeof(struct k_mntent) * count, -+ -EFAULT); -+ -+ /* Clean up */ -+ kfree( mntentlist); -+ return 0; -+ } -+ -+ default: -+ return -EINVAL; -+ -+ } -+ return 0; -+} -+ -+ -+ -+/**************************************************************************** -+ * Set up the file operations devmtab will support -+ */ -+static struct file_operations devmtab_fops = { -+ devmtab_lseek, -+ devmtab_read, -+ NULL, /* No write */ -+ NULL, /* No readdir */ -+ NULL, /* No poll */ -+ devmtab_ioctl, -+ NULL, /* No mmap */ -+ devmtab_open, -+ NULL, /* flush */ -+ devmtab_release, -+ NULL, /* fsync */ -+ NULL, /* fasync */ -+ NULL, /* check_media_change */ -+ NULL /* revalidate */ -+}; -+ -+static struct miscdevice devmtab_misc_dev = { -+ DEVMTAB_MINOR, -+ "devmtab", -+ &devmtab_fops -+}; -+ -+/* The real driver initialization function */ -+extern int devmtab_init (void) -+{ -+ printk (KERN_INFO "devmtab: driver %s loaded\n", DEVMTAB_VERSION); -+ -+ if (misc_register (&devmtab_misc_dev)) { -+ printk ("devmtab: can't register misc device %d\n", -+ DEVMTAB_MINOR); -+ return -EIO; -+ } -+ -+ return 0; -+} -+ -+#ifdef MODULE -+ -+MODULE_AUTHOR ("Erik Andersen <andersee@debian.org>"); -+MODULE_DESCRIPTION -+ ("devmtab driver -- exports filesystem and mount information to user space"); -+ -+/* Stub driver initialization function */ -+int init_module (void) -+{ -+ return (devmtab_init ()); -+} -+ -+void cleanup_module (void) -+{ -+ printk (KERN_INFO "devmtab: driver unloaded\n"); -+ misc_deregister (&devmtab_misc_dev); -+} -+ -+#endif /* MODULE */ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/devps.c linux/drivers/char/devps.c ---- linux-2.2.18-9.virgin/drivers/char/devps.c Wed Dec 31 17:00:00 1969 -+++ linux/drivers/char/devps.c Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,518 @@ -+/* vi: set sw=8 ts=8: */ -+/* -+ * linux/drivers/char/devps.c -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * May be copied or modified under the terms of the GNU General Public License. -+ * See linux/COPYING for more information. -+ * -+ * This driver implements an interface whereby programs such as ps(1), top(1), -+ * killall(1) and the like may obtain all the process information they need to -+ * do their jobs. Now you may ask, "Why not use /proc? BSD uses /proc.". -+ * Thanks for asking. /proc is designed as a virtual filesystem. As such it -+ * presents all of its information in a nice, human readable format. But not -+ * human readable enough that mere mortals can actually look at the /proc -+ * information and know what is happening on their computer (which is why we -+ * have nice programs like ps(1) to help us out. Additionally, for ps (using -+ * /proc) to do its job, it has to do something like: -+ * -+ * dir = opendir("/proc"); -+ * while ((entry = readdir(dir)) != NULL) { -+ * if (!isdigit(*entry->d_name)) -+ * continue; -+ * open_lots_of files(); -+ * parse_lots_of_strings(); -+ * close_lots_of_files(); -+ * print_stuff(); -+ * } -+ * -+ * -+ * This is bad, because: -+ * -+ * 1) opening and closing lots of files is slow, -+ * -+ * 2) parsing lots of strings is slow, -+ * -+ * 3) every one of those strings had to be carefully printed out and formatted -+ * by the kernel, which is slow, -+ * -+ * 4) using a virtual filesystem is not the traditional UN*X solution to -+ * getting information from the kernel out to userspace (ioctls and syscalls -+ * are the established way to do this), and worst of all -+ * -+ * 5) having a virtual filesystem around has been so inviting that everyone has -+ * put their own weird little files into it, causing /proc to become a -+ * cluttered rubbish heap of 64 flavors of strange that takes a ridiculous -+ * amount of memory. -+ * -+ * This driver is the first step in my evil plan to completely -+ * dismantle /proc. Muhahahaha! -+ * -+ * Suggestions are welcome. Patches that work are more welcome though. ;-) -+ * -+ * When using this driver, running: -+ * mknod /dev/ps c 10 21 -+ * could be considered helpful. -+ * -+ * ---------------------------------- -+ * 1.00 Mar 07, 2000 -- Initial version. -+ * -+ * -+ * TODO -+ * ---------------------------------- -+ * -+ * * Right now none of the vm or fd info is being returned to user space. -+ * * There is probably other stuff that should be exported to user space. -+ * -+ * -+ *************************************************************************/ -+ -+#define DEVPS_VERSION "1.00" -+ -+#include <linux/config.h> -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/mm.h> -+#include <linux/pagemap.h> -+#include <linux/malloc.h> -+#include <linux/miscdevice.h> -+#include <linux/devps.h> -+#include <linux/wrapper.h> -+#include <asm/pgtable.h> -+#include <asm/uaccess.h> -+ -+/* Some variables used by this device */ -+static struct wait_queue *devps_waitq = NULL; -+static int devps_already_opened = 0; -+ -+/**************************************************************************** -+ * Handle opening and closing of the device -+ */ -+ -+static int devps_open (struct inode *ip, struct file *fp) -+{ -+ /* Only let one process use us at any time -- putting other -+ * processes to sleep. Those opening us O_NONBLOCK will -+ * get an EAGAIN error */ -+ if ((fp->f_flags & O_NONBLOCK) && devps_already_opened) -+ return -EAGAIN; -+ -+ MOD_INC_USE_COUNT; -+ -+ while (devps_already_opened) { -+ int i, got_signal=0; -+ -+ /* Go to sleep until we get woken up -+ * by devps_close or we receive a signal */ -+ module_interruptible_sleep_on(&devps_waitq); -+ -+ for(i=0; i<_NSIG_WORDS && !got_signal; i++) -+ got_signal = current->signal.sig[i] & ~current->blocked.sig[i]; -+ -+ /* If we got a signal, decrement the use count -+ * and return to user space */ -+ if (got_signal) { -+ MOD_DEC_USE_COUNT; -+ return -EINTR; -+ } -+ } -+ -+ /* Since we got here, then device_already_opened must equal 0 */ -+ devps_already_opened=1; -+ return 0; -+} -+ -+static int devps_release (struct inode *ip, struct file *fp) -+{ -+ /* Zero out the reference counter */ -+ devps_already_opened=0; -+ -+ /* Wake up anybody that is waiting to access this device */ -+ module_wake_up(&devps_waitq); -+ -+ MOD_DEC_USE_COUNT; -+ return 0; -+} -+ -+ -+/* -+ * This pretty-prints the pathname of a dentry, -+ * clarifying sockets etc. -+ */ -+static int -+get_name_from_dentry (struct dentry *dentry, char *buffer, int buflen) -+{ -+ struct inode *inode; -+ char *tmp = (char *) __get_free_page (GFP_KERNEL), *path, *pattern; -+ int len; -+ -+ if (tmp == NULL) -+ return -ENOMEM; -+ -+ /* Check for special dentries.. */ -+ pattern = NULL; -+ inode = dentry->d_inode; -+ if (inode && dentry->d_parent == dentry) { -+ if (S_ISSOCK (inode->i_mode)) -+ pattern = "socket:[%lu]"; -+ if (S_ISFIFO (inode->i_mode)) -+ pattern = "pipe:[%lu]"; -+ } -+ -+ if (pattern) { -+ len = sprintf (tmp, pattern, inode->i_ino); -+ path = tmp; -+ } else { -+ path = d_path (dentry, tmp, PAGE_SIZE); -+ len = tmp + PAGE_SIZE - 1 - path; -+ } -+ -+ if (len < buflen) -+ buflen = len; -+ dput (dentry); -+ strncpy (buffer, path, buflen); -+ free_page ((unsigned long) tmp); -+ return buflen; -+} -+ -+static unsigned long get_phys_addr (struct task_struct *p, -+ unsigned long ptr) -+{ -+ pgd_t *page_dir; -+ pmd_t *page_middle; -+ pte_t pte; -+ -+ if (!p || !p->mm || ptr >= TASK_SIZE) -+ return 0; -+ /* Check for NULL pgd .. shouldn't happen! */ -+ if (!p->mm->pgd) { -+ printk ("get_phys_addr: pid %d has NULL pgd!\n", p->pid); -+ return 0; -+ } -+ -+ page_dir = pgd_offset (p->mm, ptr); -+ if (pgd_none (*page_dir)) -+ return 0; -+ if (pgd_bad (*page_dir)) { -+ printk ("bad page directory entry %08lx\n", -+ pgd_val (*page_dir)); -+ pgd_clear (page_dir); -+ return 0; -+ } -+ page_middle = pmd_offset (page_dir, ptr); -+ if (pmd_none (*page_middle)) -+ return 0; -+ if (pmd_bad (*page_middle)) { -+ printk ("bad page middle entry %08lx\n", -+ pmd_val (*page_middle)); -+ pmd_clear (page_middle); -+ return 0; -+ } -+ pte = *pte_offset (page_middle, ptr); -+ if (!pte_present (pte)) -+ return 0; -+ return pte_page (pte) + (ptr & ~PAGE_MASK); -+} -+ -+static int get_array (struct task_struct *p, unsigned long start, -+ unsigned long end, char *buffer) -+{ -+ unsigned long addr; -+ int size = 0, result = 0; -+ char c; -+ -+ if (start >= end) -+ return result; -+ for (;;) { -+ addr = get_phys_addr (p, start); -+ if (!addr) -+ return result; -+ do { -+ c = *(char *) addr; -+ if (!c) -+ result = size; -+ if (size < PAGE_SIZE) -+ buffer[size++] = c; -+ else -+ return result; -+ addr++; -+ start++; -+ if (!c && start >= end) -+ return result; -+ } while (addr & ~PAGE_MASK); -+ } -+ return result; -+} -+ -+static int -+devps_ioctl (struct inode *ip, struct file *fp, -+ unsigned int cmd, unsigned long arg) -+{ -+ switch (cmd) { -+ -+ /* Count up the total number of processes, -+ * and then return that total */ -+ case DEVPS_GET_NUM_PIDS:{ -+ struct task_struct *p; -+ pid_t num_pids = 0; -+ -+ read_lock (&tasklist_lock); -+ for_each_task (p) { -+ if (!p->pid) -+ continue; -+ num_pids++; -+ } -+ read_unlock (&tasklist_lock); -+ -+ copy_to_user_ret ((pid_t *) arg, &num_pids, -+ sizeof (num_pids), -EFAULT); -+ return 0; -+ } -+ -+ /* Returns an array containing all current pids, where -+ pidlist[0]=number of PIDs in the array. pidlist[0] also -+ specifies the size of the array for the kernel to -+ fill... */ -+ case DEVPS_GET_PID_LIST:{ -+ struct task_struct *p; -+ pid_t *pid_array = NULL; -+ pid_t num_pids; -+ int stat; -+ -+ /* Grab the first element to see how many * entries -+ they want us to fill */ -+ stat = verify_area (VERIFY_READ, (char *) arg, -+ sizeof (pid_t)); -+ if (stat) { -+ printk (KERN_INFO -+ "devps: can't tell how many " -+ "to pid's to write.\n"); -+ return stat; -+ } -+ -+ copy_from_user (&num_pids, (void *) arg, -+ sizeof (num_pids)); -+ -+ /* Now make sure we can write the specified amount -+ of stuff into the array. If we can't we might -+ as well quit now and save ourselves the bother. */ -+ stat = verify_area (VERIFY_WRITE, (char *) arg, -+ sizeof (pid_t) * num_pids); -+ if (stat) { -+ printk (KERN_INFO -+ "devps: Insufficient space was " -+ "provided to write %d pid's.\n", -+ num_pids); -+ return stat; -+ } -+ -+ /* Allocate some memory to hold this stuff in before -+ * we copy it out to user-space */ -+ pid_array = (pid_t *) kmalloc (num_pids * -+ sizeof (pid_t), -+ GFP_KERNEL); -+ if (pid_array == NULL) -+ return -ENOMEM; -+ -+ /* Now march through the PID list */ -+ pid_array[0] = 0; -+ read_lock (&tasklist_lock); -+ for_each_task (p) { -+ if (!p->pid) -+ continue; -+ (pid_array[0])++; -+ if (pid_array[0] >= (num_pids - 1)) -+ continue; -+ pid_array[pid_array[0]] = p->pid; -+ } -+ read_unlock (&tasklist_lock); -+ -+ /* Copy out to the user the number we actually filled -+ */ -+ copy_to_user_ret ((void *) arg, pid_array, -+ sizeof (pid_t) * pid_array[0], -+ -EFAULT); -+ kfree (pid_array); -+ -+ return 0; -+ } -+ -+ /* Find the details on a particular pid, and fill out a -+ struct with all the gory details. */ -+ case DEVPS_GET_PID_INFO:{ -+ struct task_struct *p; -+ struct pid_info mypidinfo; -+ unsigned int state; -+ /* 'R' running */ -+ /* 'S' sleeping */ -+ /* 'D' disk sleep */ -+ /* 'Z' zombie */ -+ /* 'T' stopped */ -+ /* 'W' paging */ -+ const char *state_string = "RSDZTW"; -+ -+ copy_from_user_ret (&mypidinfo, -+ (struct pid_info *) arg, -+ sizeof (mypidinfo), -EFAULT); -+ -+ read_lock (&tasklist_lock); -+ p = find_task_by_pid (mypidinfo.pid); -+ read_unlock (&tasklist_lock); -+ -+ /* Now copy all this crap so we can tell user space -+ all about it. ick. */ -+ memset (mypidinfo.name, 0, -+ sizeof (mypidinfo.name)); -+ strcpy (mypidinfo.name, p->comm); -+ mypidinfo.flags = p->flags; -+ mypidinfo.pgrp = p->pgrp; -+ mypidinfo.tms_cutime = p->times.tms_cutime; -+ mypidinfo.tms_cstime = p->times.tms_cstime; -+ mypidinfo.tms_utime = p->times.tms_utime; -+ mypidinfo.tms_stime = p->times.tms_stime; -+ mypidinfo.min_flt = p->min_flt; -+ mypidinfo.cmin_flt = p->cmin_flt; -+ mypidinfo.maj_flt = p->maj_flt; -+ mypidinfo.cmaj_flt = p->cmaj_flt; -+ mypidinfo.session = p->session; -+ mypidinfo.pid = p->pid; -+ mypidinfo.ppid = p->p_pptr->pid; -+ mypidinfo.tty = -+ p->tty ? kdev_t_to_nr (p->tty->device) : 0; -+ mypidinfo.start_time = p->start_time; -+ mypidinfo.uid = p->uid; -+ mypidinfo.euid = p->euid; -+ mypidinfo.suid = p->suid; -+ mypidinfo.fsuid = p->fsuid; -+ mypidinfo.gid = p->gid; -+ mypidinfo.egid = p->egid; -+ mypidinfo.sgid = p->sgid; -+ mypidinfo.fsgid = p->fsgid; -+ mypidinfo.priority = 20 - (p->counter * 10 + -+ DEF_PRIORITY / 2) / DEF_PRIORITY; -+ mypidinfo.nice = 20 - (mypidinfo.priority * 20 + -+ DEF_PRIORITY / 2) / DEF_PRIORITY; -+ state = p-> state & (TASK_RUNNING | TASK_INTERRUPTIBLE -+ | TASK_UNINTERRUPTIBLE | -+ TASK_ZOMBIE | TASK_STOPPED | -+ TASK_SWAPPING); -+ while (state) { -+ state_string++; -+ state >>= 1; -+ } -+ mypidinfo.state = *state_string; -+ mypidinfo.processor = p->processor; -+ mypidinfo.nswap = p->nswap; -+ mypidinfo.cnswap = p->cnswap; -+ if (p && p->mm) { -+ char *page = NULL; -+ -+ /* Look for some elbow room */ -+ if (!(page = (char*)get_free_page (GFP_KERNEL))) -+ return -ENOMEM; -+ /* Grab the command line */ -+ get_array (p, p->mm->arg_start, -+ p->mm->arg_end, page); -+ memcpy( mypidinfo.command_line, page, sizeof( mypidinfo.command_line)); -+ mypidinfo.command_line[sizeof( mypidinfo.command_line)-1]='\0'; -+ -+ /* Grab the environment */ -+ memset (page, 0, PAGE_SIZE); -+ get_array (p, p->mm->env_start, -+ p->mm->env_end, page); -+ memcpy( mypidinfo.environment, page, sizeof( mypidinfo.environment)); -+ mypidinfo.command_line[sizeof( mypidinfo.environment)-1]='\0'; -+ free_page ((unsigned long) page); -+ } -+ memset (mypidinfo.cwd, 0, sizeof (mypidinfo.cwd)); -+ get_name_from_dentry (dget (p->fs->pwd), mypidinfo.cwd, -+ sizeof (mypidinfo.cwd)); -+ memset (mypidinfo.root, 0, sizeof (mypidinfo.root)); -+ get_name_from_dentry (dget (p->fs->root), -+ mypidinfo.root, -+ sizeof (mypidinfo.root)); -+ -+ copy_to_user_ret ((struct pid_info *) arg, -+ &mypidinfo, sizeof (mypidinfo), -+ -EFAULT); -+ -+ return 0; -+ } -+ -+ /* Return the PID of the current process */ -+ case DEVPS_GET_CURRENT_PID:{ -+ return current->pid; -+ } -+ -+ default: -+ return -EINVAL; -+ -+ } -+ return 0; -+} -+ -+ -+ -+/**************************************************************************** -+ * Set up the file operations devps will support -+ */ -+static struct file_operations devps_fops = { -+ NULL, /* No lseek */ -+ NULL, /* No read */ -+ NULL, /* No write */ -+ NULL, /* No readdir */ -+ NULL, /* No poll */ -+ devps_ioctl, -+ NULL, /* No mmap */ -+ devps_open, -+ NULL, /* flush */ -+ devps_release, -+ NULL, /* fsync */ -+ NULL, /* fasync */ -+ NULL, /* check_media_change */ -+ NULL /* revalidate */ -+}; -+ -+static struct miscdevice devps_misc_dev = { -+ DEVPS_MINOR, -+ "devps", -+ &devps_fops -+}; -+ -+/* The real driver initialization function */ -+extern int devps_init (void) -+{ -+ printk (KERN_INFO "devps driver %s loaded\n", DEVPS_VERSION); -+ -+ if (misc_register (&devps_misc_dev)) { -+ printk ("devps: unable to get misc device %d\n", -+ DEVPS_MINOR); -+ return -EIO; -+ } -+ -+ return 0; -+} -+ -+#ifdef MODULE -+ -+MODULE_AUTHOR ("Erik Andersen <andersee@debian.org>"); -+MODULE_DESCRIPTION -+ ("devps driver -- exports kernel process information to user space"); -+ -+ -+/* Stub driver initialization function */ -+int init_module (void) -+{ -+ return (devps_init ()); -+} -+ -+void cleanup_module (void) -+{ -+ printk (KERN_INFO "devps driver unloaded\n"); -+ misc_deregister (&devps_misc_dev); -+} -+ -+#endif /* endif MODULE */ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/makedevps.sh linux/drivers/char/makedevps.sh ---- linux-2.2.18-9.virgin/drivers/char/makedevps.sh Wed Dec 31 17:00:00 1969 -+++ linux/drivers/char/makedevps.sh Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,5 @@ -+#!/bin/sh -x -+ -+gcc -Wall -g -I /usr/src/linux/include ps-devps.c -o ps-devps -+gcc -Wall -g -I /usr/src/linux/include mounts.c -o mounts -+ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/misc.c linux/drivers/char/misc.c ---- linux-2.2.18-9.virgin/drivers/char/misc.c Mon Sep 18 15:02:31 2000 -+++ linux/drivers/char/misc.c Mon Sep 25 17:00:57 2000 -@@ -85,6 +85,8 @@ - extern int pmu_device_init(void); - extern int tosh_init(void); - extern int rng_init(void); -+extern int devps_init(void); -+extern int devmtab_init(void); - - static int misc_read_proc(char *buf, char **start, off_t offset, - int len, int *eof, void *private) -@@ -268,6 +270,12 @@ - #endif - #ifdef CONFIG_PMAC_PBOOK - pmu_device_init(); -+#endif -+#ifdef CONFIG_DEVPS -+ devps_init(); -+#endif -+#ifdef CONFIG_DEVMTAB -+ devmtab_init(); - #endif - #ifdef CONFIG_SGI_NEWPORT_GFX - gfx_register (); -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/mounts.c linux/drivers/char/mounts.c ---- linux-2.2.18-9.virgin/drivers/char/mounts.c Wed Dec 31 17:00:00 1969 -+++ linux/drivers/char/mounts.c Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,116 @@ -+/* vi: set sw=4 ts=4: */ -+/* -+ * devmtab tester -+ * -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -+ * -+ */ -+ -+#include <stdio.h> -+#include <stdlib.h> -+#include <errno.h> -+#include <string.h> -+#include <unistd.h> -+#include <time.h> -+#include <fcntl.h> -+#include <sys/ioctl.h> -+#include <sys/types.h> -+#include <linux/devmtab.h> -+ -+ -+int main (int argc, char **argv) -+{ -+ char device[80] = "/dev/mtab"; -+ int fd; /* file descriptor for devmtab device */ -+ int i, numfilesystems; -+ struct k_fstype *fslist; -+ struct k_mntent *mntentlist; -+ -+ if (argc > 1 && **(argv + 1) == '-') { -+ fprintf(stderr, "Usage: mounts\n\nReport mounted stuff\n\nThis version of mounts accepts no options.\n\n"); -+ exit(1); -+ } -+ -+ /* open device */ -+ if ((fd = open(device, O_RDONLY)) < 0) { -+ fprintf (stderr, "open failed for `%s': %s\n", -+ device, strerror (errno)); -+ exit (1); -+ } -+ -+ /* How many filesystems? We need to know to allocate -+ * enough space for later... */ -+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS); -+ if (numfilesystems<0) { -+ fprintf (stderr, "\nDEVMTAB_COUNT_FILESYSTEMS: %s\n", -+ strerror (errno)); -+ exit (1); -+ } -+ fslist = (struct k_fstype *) calloc ( numfilesystems, sizeof(struct k_fstype)); -+ -+ /* Grab the list of available filesystems */ -+ if (ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist)<0) { -+ fprintf (stderr, "\nDEVMTAB_GET_FILESYSTEMS: %s\n", -+ strerror (errno)); -+ exit (1); -+ } -+ fprintf( stdout, "\nEquivalent of /proc/filesystems:\n"); -+ for( i = 0 ; i < numfilesystems ; i++) { -+ fprintf( stdout, "%s%s\n", fslist[i].mnt_type, -+ (fslist[i].mnt_nodev)? " nodev" : ""); -+ } -+ -+ -+ /* How many mounted filesystems? We need to know to -+ * allocate enough space for later... */ -+ numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS); -+ if (numfilesystems<0) { -+ fprintf (stderr, "\nDEVMTAB_COUNT_MOUNTS: %s\n", -+ strerror (errno)); -+ exit (1); -+ } -+ mntentlist = (struct k_mntent *) calloc ( numfilesystems, sizeof(struct k_mntent)); -+ -+ /* Grab the list of mounted filesystems */ -+ if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0) { -+ fprintf (stderr, "\nDEVMTAB_GET_MOUNTS: %s\n", -+ strerror (errno)); -+ exit (1); -+ } -+ -+ fprintf( stdout, "\nEquivalent of /proc/mounts:\n"); -+ for( i = 0 ; i < numfilesystems ; i++) { -+ fprintf( stdout, "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname, -+ mntentlist[i].mnt_dir, mntentlist[i].mnt_type, -+ mntentlist[i].mnt_opts, mntentlist[i].mnt_freq, -+ mntentlist[i].mnt_passno); -+ } -+ -+ -+ /* clean up */ -+ free( fslist); -+ free( mntentlist); -+ if (close (fd) != 0) { -+ fprintf (stderr, "close failed for `%s': %s\n", -+ device, strerror (errno)); -+ exit (1); -+ } -+ -+ exit (0); -+} -+ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/drivers/char/ps-devps.c linux/drivers/char/ps-devps.c ---- linux-2.2.18-9.virgin/drivers/char/ps-devps.c Wed Dec 31 17:00:00 1969 -+++ linux/drivers/char/ps-devps.c Mon Sep 25 17:32:19 2000 -@@ -0,0 +1,148 @@ -+/* vi: set sw=4 ts=4: */ -+/* -+ * Mini ps implementation for use with the Linux devps driver -+ * -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -+ * -+ */ -+ -+#include <stdio.h> -+#include <stdlib.h> -+#include <errno.h> -+#include <string.h> -+#include <unistd.h> -+#include <time.h> -+#include <fcntl.h> -+#include <sys/ioctl.h> -+#include <linux/devps.h> -+#include <pwd.h> -+#include <grp.h> -+#include <sys/types.h> -+ -+ -+#define MAX_COLUMN 79 -+ -+int -+main (int argc, char **argv) -+{ -+ char device[80] = "/dev/ps"; -+ int i, j, len; -+ int fd; /* file descriptor for devps device */ -+ int status; /* return status for system calls */ -+ pid_t num_pids; -+ pid_t* pid_array = NULL; -+ struct pid_info info; -+ struct passwd *pwd; -+ struct group *grp; -+ char uidName[10] = ""; -+ char groupName[10] = ""; -+ -+ if (argc > 1 && **(argv + 1) == '-') { -+ fprintf(stderr, "Usage: ps-devps\n\nReport process status\n\nThis version of ps accepts no options.\n\n"); -+ exit(1); -+ } -+ -+ /* open device */ -+ //fd = open(device, O_RDWR); -+ fd = open(device, O_RDONLY); -+ if (fd < 0) { -+ fprintf (stderr, "open failed for `%s': %s\n", -+ device, strerror (errno)); -+ goto error; -+ } -+ -+ /* Find out how many processes there are */ -+ status = ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids); -+ if (status<0) { -+ fprintf (stderr, "\nDEVPS_GET_PID_LIST: %s\n", -+ strerror (errno)); -+ goto error; -+ } -+ -+ /* Allocate some memory -- grab a few extras just in case -+ * some new processes start up while we wait. The kernel will -+ * just ignore any extras if we give it too many, and will trunc. -+ * the list if we give it too few. */ -+ pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t)); -+ pid_array[0] = num_pids+10; -+ -+ /* Now grab the pid list */ -+ status = ioctl (fd, DEVPS_GET_PID_LIST, pid_array); -+ if (status<0) { -+ fprintf (stderr, "\nDEVPS_GET_PID_LIST: %s\n", -+ strerror (errno)); -+ goto error; -+ } -+ -+ /* Print up a ps listing */ -+ fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid", -+ "State", "Command"); -+ -+ for (i=1; i<pid_array[0] ; i++) { -+ info.pid = pid_array[i]; -+ status = ioctl (fd, DEVPS_GET_PID_INFO, &info); -+ if (status<0) { -+ fprintf (stderr, "\nDEVPS_GET_PID_INFO: %s\n", -+ strerror (errno)); -+ goto error; -+ } -+ /* Make some adjustments as needed */ -+ pwd = getpwuid(info.euid); -+ if (pwd == NULL) -+ sprintf(uidName, "%lu", info.euid); -+ else -+ sprintf(uidName, "%s", pwd->pw_name); -+ grp = getgrgid(info.egid); -+ if (grp == NULL) -+ sprintf(groupName, "%lu", info.egid); -+ else -+ sprintf(groupName, "%s", grp->gr_name); -+ -+ len = fprintf(stdout, "%5d %-8s %-8s %c ", info.pid, uidName, groupName, info.state); -+ -+ if (strlen(info.command_line) > 1) { -+ for( j=0; j<(sizeof(info.command_line)-1) && j < (MAX_COLUMN-len); j++) { -+ if (*(info.command_line+j) == '\0' && *(info.command_line+j+1) != '\0') { -+ *(info.command_line+j) = ' '; -+ } -+ } -+ *(info.command_line+j) = '\0'; -+ fprintf(stdout, "%s\n", info.command_line); -+ } else { -+ fprintf(stdout, "[%s]\n", info.name); -+ } -+ } -+ -+ /* Free memory */ -+ free( pid_array); -+ -+ /* close device */ -+ status = close (fd); -+ if (status != 0) { -+ fprintf (stderr, "close failed for `%s': %s\n", -+ device, strerror (errno)); -+ goto error; -+ } -+ -+ exit (0); -+error: -+ fflush(stdout); -+ fflush(stderr); -+ exit (1); -+} -+ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/fs/Makefile linux/fs/Makefile ---- linux-2.2.18-9.virgin/fs/Makefile Wed Aug 25 18:29:49 1999 -+++ linux/fs/Makefile Mon Sep 25 16:33:16 2000 -@@ -11,9 +11,10 @@ - L_OBJS = $(join $(SUB_DIRS),$(SUB_DIRS:%=/%.o)) - O_TARGET := fs.o - O_OBJS = open.o read_write.o devices.o file_table.o buffer.o \ -- super.o block_dev.o stat.o exec.o pipe.o namei.o fcntl.o \ -+ block_dev.o stat.o exec.o pipe.o namei.o fcntl.o \ - ioctl.o readdir.o select.o fifo.o locks.o filesystems.o \ - dcache.o inode.o attr.o bad_inode.o file.o $(BINFMTS) -+OX_OBJS = super.o - - MOD_LIST_NAME := FS_MODULES - ALL_SUB_DIRS = coda minix ext2 fat msdos vfat proc isofs nfs umsdos ntfs \ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/fs/super.c linux/fs/super.c ---- linux-2.2.18-9.virgin/fs/super.c Mon Sep 18 15:02:34 2000 -+++ linux/fs/super.c Mon Sep 25 17:00:57 2000 -@@ -18,6 +18,7 @@ - */ - - #include <linux/config.h> -+#include <linux/module.h> - #include <linux/malloc.h> - #include <linux/locks.h> - #include <linux/smp_lock.h> -@@ -25,6 +26,7 @@ - #include <linux/init.h> - #include <linux/quotaops.h> - #include <linux/acct.h> -+#include <linux/devmtab.h> - - #include <asm/uaccess.h> - -@@ -311,7 +313,57 @@ - { 0, NULL } - }; - --int get_filesystem_info( char *buf ) -+ -+extern int count_mounted_filesystems() -+{ -+ struct vfsmount *tmp = vfsmntlist; -+ int count = 0; -+ -+ while (tmp) -+ { -+ tmp = tmp->mnt_next; -+ count++; -+ } -+ -+ return count; -+} -+EXPORT_SYMBOL(count_mounted_filesystems); -+ -+ -+extern void get_mtab_entries( int count, struct k_mntent* mntentlist) -+{ -+ struct vfsmount *tmp = vfsmntlist; -+ struct proc_fs_info *fs_infop; -+ int i = 0, len; -+ -+ while (tmp && i < count) -+ { -+ strncpy(mntentlist[i].mnt_fsname, tmp->mnt_devname, -+ sizeof(mntentlist[i].mnt_fsname)); -+ strncpy(mntentlist[i].mnt_dir, tmp->mnt_dirname, -+ sizeof(mntentlist[i].mnt_dir)); -+ strncpy(mntentlist[i].mnt_type, tmp->mnt_sb->s_type->name, -+ sizeof(mntentlist[i].mnt_type)); -+ len = 0; -+ len+=sprintf(mntentlist[i].mnt_opts, "%s", -+ tmp->mnt_flags & MS_RDONLY ? "ro" : "rw"); -+ for (fs_infop = fs_info; fs_infop->flag; fs_infop++) { -+ if (tmp->mnt_flags & fs_infop->flag) { -+ strncpy(mntentlist[i].mnt_opts+len, fs_infop->str, -+ sizeof(mntentlist[i].mnt_opts)-len); -+ len += strlen(fs_infop->str); -+ } -+ } -+ -+ /* TODO -- add in NFS stuff */ -+ -+ tmp = tmp->mnt_next; -+ i++; -+ } -+} -+EXPORT_SYMBOL(get_mtab_entries); -+ -+extern int get_filesystem_info( char *buf ) - { - struct vfsmount *tmp = vfsmntlist; - struct proc_fs_info *fs_infop; -@@ -383,8 +435,37 @@ - - return len; - } -+EXPORT_SYMBOL(get_filesystem_info); -+ -+extern int count_kfstypes() -+{ -+ struct file_system_type * tmp = file_systems; -+ int count = 0; -+ -+ while (tmp) { -+ count++; -+ tmp = tmp->next; -+ } -+ -+ return count; -+} -+EXPORT_SYMBOL(count_kfstypes); -+ -+extern void get_kfstype_list(int count, struct k_fstype* fstypelist) -+{ -+ int i = 0; -+ struct file_system_type * tmp = file_systems; -+ -+ while (tmp && i < count) { -+ strncpy(fstypelist[i].mnt_type, tmp->name, sizeof(fstypelist[i].mnt_type)); -+ fstypelist[i].mnt_nodev = (tmp->fs_flags & FS_REQUIRES_DEV)? 0 : 1; -+ tmp = tmp->next; -+ i++; -+ } -+} -+EXPORT_SYMBOL(get_kfstype_list); - --int get_filesystem_list(char * buf) -+extern int get_filesystem_list(char * buf) - { - int len = 0; - struct file_system_type * tmp; -@@ -398,6 +479,7 @@ - } - return len; - } -+EXPORT_SYMBOL(get_filesystem_list); - - struct file_system_type *get_fs_type(const char *name) - { -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/devmtab.h linux/include/linux/devmtab.h ---- linux-2.2.18-9.virgin/include/linux/devmtab.h Wed Dec 31 17:00:00 1969 -+++ linux/include/linux/devmtab.h Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,55 @@ -+/* vi: set sw=8 ts=8: */ -+/* -+ * -- <linux/devmtab.h> -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * May be copied or modified under the terms of the GNU General Public License. -+ * See linux/COPYING for more information. -+ * -+ * This driver implements an interface whereby programs such as mount(8), -+ * umount(8), and df(1) may obtain all the process information they need to do -+ * their jobs without needing to use /proc. -+ * -+ */ -+ -+#ifndef _LINUX_DEVMTAB_H -+#define _LINUX_DEVMTAB_H -+ -+ -+/******************************************************* -+ * The list of all ioctl(2) commands suported by devmtab. -+ * For the devmtab ioctls, I have commandeered some of the -+ * higher bits of byte 0xeb. -+ *******************************************************/ -+#define DEVMTAB_COUNT_FILESYSTEMS 0xebaa /* Get a list of all fs */ -+#define DEVMTAB_GET_FILESYSTEMS 0xebab /* Get a list of all fs */ -+#define DEVMTAB_COUNT_MOUNTS 0xebac /* Returns number of mounted filesystems */ -+#define DEVMTAB_GET_MOUNTS 0xebad /* Get a list of a mounted fs */ -+#define DEVMTAB_SET_ROOTFS_DEVNAME 0xebae /* Replace /dev/root with real name */ -+ -+/******************************************************* -+ * devmtab ioctl(2) structures -+ *******************************************************/ -+ -+/* An array of these is returned by the DEVMTAB_GET_FILESYSTEMS ioctl. -+ */ -+struct k_fstype { -+ char mnt_type[255]; /* filesystem type: ext2, nfs, etc. */ -+ int mnt_nodev; /* Is this a device-less filesystem? */ -+}; -+ -+/* An array of these is returned by the DEVMTAB_GET_MOUNTS ioctl. -+ * This struct should be the same as what libc returns via the -+ * getmntent(3) function (excat this comes from the kernel, not -+ * from whatever noise is in /etc/mtab at the moment... */ -+struct k_mntent { -+ char mnt_fsname[255]; /* name of mounted file system */ -+ char mnt_dir[255]; /* path of file system mount point */ -+ char mnt_type[255]; /* filesystem type: ext2, nfs, etc. */ -+ char mnt_opts[255]; /* Comma-separated list of mount options */ -+ int mnt_freq; /* dump frequency in days */ -+ int mnt_passno; /* pass number for parallel fsck */ -+}; -+ -+#endif /* _LINUX_DEVMTAB_H */ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/devps.h linux/include/linux/devps.h ---- linux-2.2.18-9.virgin/include/linux/devps.h Wed Dec 31 17:00:00 1969 -+++ linux/include/linux/devps.h Mon Sep 25 17:00:57 2000 -@@ -0,0 +1,78 @@ -+/* -+ * -- <linux/devps.h> -+ * -+ * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> -+ * -+ * May be copied or modified under the terms of the GNU General Public License. -+ * See linux/COPYING for more information. -+ * -+ * This driver implements an interface whereby programs such as ps(1), top(1), -+ * killall(1) and the like may obtain all the process information they need to -+ * do their jobs. -+ * -+ */ -+ -+#ifndef _LINUX_DEVPS_H -+#define _LINUX_DEVPS_H -+ -+ -+/******************************************************* -+ * The list of all ioctl(2) commands suported by devps. -+ * For the devps ioctls, I have commandeered some of the -+ * higher bits of byte 0xeb. -+ *******************************************************/ -+#define DEVPS_GET_NUM_PIDS 0xeba1 /* Get a list of all PIDs */ -+#define DEVPS_GET_PID_LIST 0xeba2 /* Get a list of all PIDs */ -+#define DEVPS_GET_PID_INFO 0xeba3 /* Get info about a specific PID */ -+#define DEVPS_GET_CURRENT_PID 0xeba4 /* Get the current PID */ -+ -+/******************************************************* -+ * devps ioctl(2) structures -+ *******************************************************/ -+ -+ -+struct pid_info -+{ -+ char name[16]; -+ long flags; -+ pid_t pgrp; -+ clock_t tms_cutime; -+ clock_t tms_cstime; -+ clock_t tms_utime; -+ clock_t tms_stime; -+ unsigned long min_flt; -+ unsigned long cmin_flt; -+ unsigned long maj_flt; -+ unsigned long cmaj_flt; -+ pid_t session; -+ pid_t pid; -+ pid_t ppid; -+ int tty; -+ unsigned long start_time; -+ unsigned long uid,euid,suid,fsuid; -+ unsigned long gid,egid,sgid,fsgid; -+ long priority, nice; -+ char state; -+ int processor; -+ unsigned long nswap, cnswap; -+ char command_line[256]; -+ char environment[256]; -+ char root[256]; -+ char cwd[256]; -+#if 0 -+ /* TODO: Add in this (and probably more) stuff */ -+ -+ int resident; -+ int size; -+ int share; -+ unsigned long vsize; -+ char exe[MAX_PATH]; -+ unsigned long vm_total, vm_locked, vm_rss, vm_data, vm_stack, vm_exec, vm_lib; -+ unsigned long start_code, end_code, start_data, eip, esp; -+ unsigned long signal, blocked; -+#endif -+ -+ -+}; -+ -+#endif /* _LINUX_DEVPS_H */ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/fs.h linux/include/linux/fs.h ---- linux-2.2.18-9.virgin/include/linux/fs.h Mon Sep 18 15:08:47 2000 -+++ linux/include/linux/fs.h Mon Sep 25 17:37:50 2000 -@@ -573,6 +573,16 @@ - struct semaphore s_vfs_rename_sem; /* Kludge */ - }; - -+/* fs/super.c */ -+#include <linux/devmtab.h> -+ -+extern int count_kfstypes( void); -+extern void get_kfstype_list( int count, struct k_fstype* fstypelist); -+extern int count_mounted_filesystems( void); -+extern int get_filesystem_info(char *buf); -+extern int get_filesystem_list(char *buf); -+extern void get_mtab_entries( int count, struct k_mntent* mntentlist); -+ - /* - * VFS helper functions.. - */ -diff -urN --exclude=.version --exclude=.config* --exclude=.*depend linux-2.2.18-9.virgin/include/linux/miscdevice.h linux/include/linux/miscdevice.h ---- linux-2.2.18-9.virgin/include/linux/miscdevice.h Mon Aug 9 13:04:41 1999 -+++ linux/include/linux/miscdevice.h Mon Sep 25 16:33:17 2000 -@@ -11,6 +11,8 @@ - #define APOLLO_MOUSE_MINOR 7 - #define PC110PAD_MINOR 9 - #define MAC_MOUSE_MINOR 10 -+#define DEVPS_MINOR 21 -+#define DEVMTAB_MINOR 22 - #define WATCHDOG_MINOR 130 /* Watchdog timer */ - #define TEMP_MINOR 131 /* Temperature Sensor */ - #define RTC_MINOR 135 |