diff options
Diffstat (limited to 'examples/kernel-patches/devps.patch.3_7')
| -rw-r--r-- | examples/kernel-patches/devps.patch.3_7 | 2316 |
1 files changed, 2316 insertions, 0 deletions
diff --git a/examples/kernel-patches/devps.patch.3_7 b/examples/kernel-patches/devps.patch.3_7 new file mode 100644 index 0000000..0f354a0 --- /dev/null +++ b/examples/kernel-patches/devps.patch.3_7 @@ -0,0 +1,2316 @@ +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/alpha/defconfig linux/arch/alpha/defconfig +--- linux-2.2.15-pre13.virgin/arch/alpha/defconfig Tue Jan 4 11:12:10 2000 ++++ linux/arch/alpha/defconfig Tue Mar 7 19:57:29 2000 +@@ -239,6 +239,9 @@ + # CONFIG_SERIAL_CONSOLE is not set + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + CONFIG_MOUSE=y +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/arm/defconfig linux/arch/arm/defconfig +--- linux-2.2.15-pre13.virgin/arch/arm/defconfig Thu Feb 25 11:46:46 1999 ++++ linux/arch/arm/defconfig Tue Mar 7 20:01:46 2000 +@@ -156,6 +156,10 @@ + CONFIG_SCSI_PPA=m + CONFIG_SCSI_PPA_HAVE_PEDANTIC=2 + ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set ++ + # + # Network device support + # +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/i386/defconfig linux/arch/i386/defconfig +--- linux-2.2.15-pre13.virgin/arch/i386/defconfig Tue Mar 7 19:46:57 2000 ++++ linux/arch/i386/defconfig Tue Mar 7 19:57:40 2000 +@@ -300,6 +300,9 @@ + # CONFIG_SERIAL_CONSOLE is not set + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + CONFIG_MOUSE=y +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/i386/kernel/Makefile linux/arch/i386/kernel/Makefile +--- linux-2.2.15-pre13.virgin/arch/i386/kernel/Makefile Wed Jan 20 11:18:53 1999 ++++ linux/arch/i386/kernel/Makefile Tue Mar 7 19:52:45 2000 +@@ -14,8 +14,8 @@ + + O_TARGET := kernel.o + O_OBJS := process.o signal.o entry.o traps.o irq.o vm86.o \ +- ptrace.o ioport.o ldt.o setup.o time.o sys_i386.o +-OX_OBJS := i386_ksyms.o ++ ptrace.o ioport.o ldt.o time.o sys_i386.o ++OX_OBJS := i386_ksyms.o setup.o + MX_OBJS := + + ifdef CONFIG_PCI +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/m68k/defconfig linux/arch/m68k/defconfig +--- linux-2.2.15-pre13.virgin/arch/m68k/defconfig Thu Feb 25 11:46:46 1999 ++++ linux/arch/m68k/defconfig Tue Mar 7 19:58:10 2000 +@@ -223,6 +223,9 @@ + CONFIG_AMIGAMOUSE=y + CONFIG_ATARIMOUSE=y + CONFIG_AMIGA_BUILTIN_SERIAL=y ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + # CONFIG_GVPIOEXT is not set + # CONFIG_GVPIOEXT_LP is not set + # CONFIG_GVPIOEXT_PLIP is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/mips/defconfig linux/arch/mips/defconfig +--- linux-2.2.15-pre13.virgin/arch/mips/defconfig Mon Aug 9 13:04:38 1999 ++++ linux/arch/mips/defconfig Tue Mar 7 19:58:30 2000 +@@ -252,6 +252,9 @@ + CONFIG_SERIAL=m + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + # CONFIG_UNIX98_PTYS is not set + # CONFIG_MOUSE is not set + # CONFIG_QIC02_TAPE is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/apus_defconfig linux/arch/ppc/apus_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/apus_defconfig Thu Feb 25 11:46:47 1999 ++++ linux/arch/ppc/apus_defconfig Tue Mar 7 19:59:14 2000 +@@ -303,6 +303,9 @@ + CONFIG_SERIAL=m + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + # CONFIG_MOUSE is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/chrp_defconfig linux/arch/ppc/chrp_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/chrp_defconfig Thu Feb 25 11:46:47 1999 ++++ linux/arch/ppc/chrp_defconfig Tue Mar 7 19:58:57 2000 +@@ -261,6 +261,9 @@ + # CONFIG_SERIAL_CONSOLE is not set + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + # CONFIG_UNIX98_PTYS is not set + # CONFIG_MOUSE is not set + # CONFIG_UMISC is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/common_defconfig linux/arch/ppc/common_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/common_defconfig Tue Jan 4 11:12:12 2000 ++++ linux/arch/ppc/common_defconfig Tue Mar 7 19:59:35 2000 +@@ -337,6 +337,9 @@ + CONFIG_SERIAL=m + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + CONFIG_MOUSE=y +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/defconfig linux/arch/ppc/defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/defconfig Tue Jan 4 11:12:12 2000 ++++ linux/arch/ppc/defconfig Tue Mar 7 19:58:43 2000 +@@ -337,6 +337,9 @@ + CONFIG_SERIAL=m + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + CONFIG_MOUSE=y +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/gemini_defconfig linux/arch/ppc/gemini_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/gemini_defconfig Tue Jan 4 11:12:12 2000 ++++ linux/arch/ppc/gemini_defconfig Tue Mar 7 19:59:23 2000 +@@ -285,6 +285,9 @@ + CONFIG_SERIAL_CONSOLE=y + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + # CONFIG_MOUSE is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/mbx_defconfig linux/arch/ppc/mbx_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/mbx_defconfig Wed Mar 10 22:30:32 1999 ++++ linux/arch/ppc/mbx_defconfig Tue Mar 7 19:59:49 2000 +@@ -192,6 +192,9 @@ + CONFIG_SERIAL_CONSOLE=y + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + # CONFIG_UNIX98_PTYS is not set + # CONFIG_MOUSE is not set + # CONFIG_QIC02_TAPE is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/ppc/pmac_defconfig linux/arch/ppc/pmac_defconfig +--- linux-2.2.15-pre13.virgin/arch/ppc/pmac_defconfig Tue Oct 26 18:53:39 1999 ++++ linux/arch/ppc/pmac_defconfig Tue Mar 7 19:59:59 2000 +@@ -368,6 +368,9 @@ + # CONFIG_SERIAL is not set + # CONFIG_SERIAL_EXTENDED is not set + # CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + CONFIG_UNIX98_PTYS=y + CONFIG_UNIX98_PTY_COUNT=256 + # CONFIG_PRINTER is not set +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/s390/defconfig linux/arch/s390/defconfig +--- linux-2.2.15-pre13.virgin/arch/s390/defconfig Tue Mar 7 19:46:57 2000 ++++ linux/arch/s390/defconfig Tue Mar 7 20:02:36 2000 +@@ -64,6 +64,9 @@ + CONFIG_3215_CONSOLE=y + CONFIG_HWC=y + CONFIG_HWC_CONSOLE=y ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set + + # + # Networking options +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/sparc/defconfig linux/arch/sparc/defconfig +--- linux-2.2.15-pre13.virgin/arch/sparc/defconfig Tue Mar 7 19:46:57 2000 ++++ linux/arch/sparc/defconfig Tue Mar 7 20:01:00 2000 +@@ -219,6 +219,10 @@ + CONFIG_SUNQE=m + CONFIG_MYRI_SBUS=m + ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set ++ + # + # Unix98 PTY support + # +diff -ur --new-file linux-2.2.15-pre13.virgin/arch/sparc64/defconfig linux/arch/sparc64/defconfig +--- linux-2.2.15-pre13.virgin/arch/sparc64/defconfig Tue Mar 7 19:46:57 2000 ++++ linux/arch/sparc64/defconfig Tue Mar 7 20:01:16 2000 +@@ -262,6 +262,10 @@ + CONFIG_EEXPRESS_PRO100=m + CONFIG_SK98LIN=m + ++# CONFIG_DEVPS is not set ++# CONFIG_DEVMTAB is not set ++# CONFIG_DEVMODULES is not set ++ + # + # Unix 98 PTY support + # +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/Config.in linux/drivers/char/Config.in +--- linux-2.2.15-pre13.virgin/drivers/char/Config.in Tue Mar 7 19:46:58 2000 ++++ linux/drivers/char/Config.in Tue Mar 7 19:52:45 2000 +@@ -56,6 +56,9 @@ + 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 ++tristate 'Devmodules support' CONFIG_DEVMODULES + bool 'Unix98 PTY support' CONFIG_UNIX98_PTYS + if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then + int 'Maximum number of Unix98 PTYs in use (0-2048)' CONFIG_UNIX98_PTY_COUNT 256 +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/Makefile linux/drivers/char/Makefile +--- linux-2.2.15-pre13.virgin/drivers/char/Makefile Tue Mar 7 19:46:58 2000 ++++ linux/drivers/char/Makefile Tue Mar 7 19:52:45 2000 +@@ -620,6 +620,30 @@ + L_OBJS += dz.o + endif + ++ifeq ($(CONFIG_DEVPS),y) ++L_OBJS += devps.o ++else ++ ifeq ($(CONFIG_DEVPS),m) ++ M_OBJS += devps.o ++ endif ++endif ++ ++ifeq ($(CONFIG_DEVMTAB),y) ++L_OBJS += devmtab.o ++else ++ ifeq ($(CONFIG_DEVMTAB),m) ++ M_OBJS += devmtab.o ++ endif ++endif ++ ++ifeq ($(CONFIG_DEVMODULES),y) ++L_OBJS += devmodules.o ++else ++ ifeq ($(CONFIG_DEVMODULES),m) ++ M_OBJS += devmodules.o ++ endif ++endif ++ + include $(TOPDIR)/Rules.make + + fastdep: +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/devmodules.c linux/drivers/char/devmodules.c +--- linux-2.2.15-pre13.virgin/drivers/char/devmodules.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/devmodules.c Tue Mar 7 22:37:42 2000 +@@ -0,0 +1,270 @@ ++/* vi: set sw=8 ts=8: */ ++/* ++ * linux/drivers/char/devmodules.c ++ * ++ * Copyright (C) 2000 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 lsmod(8) may ++ * obtain all the information they need to do their jobs. Now you may ask, ++ * "Why not use /proc/modules?". Thanks for asking. Because /proc is big and ++ * bloated, and because using this driver we can avoid all that bloat and avoid ++ * having the kernel need to pretty print stuff and avoid having user-space ++ * then have to parse the stuff the kernel wasted its time formatting. ++ * ++ * ++ * Suggestions are welcome. Patches that work are more welcome though. ;-) ++ * ++ * When using this driver, running: ++ * mknod /dev/modules c 10 23 ++ * could be considered helpful. ++ * ++ * ---------------------------------- ++ * 1.00 Mar 07, 2000 -- Initial version. ++ * ++ * ++ *************************************************************************/ ++ ++#define DEVMODULES_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/devmodules.h> ++#include <linux/wrapper.h> ++#include <asm/pgtable.h> ++#include <asm/uaccess.h> ++ ++ ++/* Some variables used by this device */ ++static struct wait_queue *devmodules_waitq = NULL; ++static int devmodules_already_opened = 0; ++static char *devmodulesfile = NULL; ++static int devmodules_ptr; ++static int devmodules_size; ++ ++ ++ ++/**************************************************************************** ++ * Handle opening and closing of the device ++ */ ++ ++static long long ++devmodules_lseek (struct file *file, long long offset, int orig) ++{ ++ return -ESPIPE; ++} ++ ++static ssize_t ++devmodules_read (struct file *file, char *buf, size_t count, loff_t * ppos) ++{ ++ int n = devmodules_size - devmodules_ptr; ++ ++ if (devmodules_size == 0) { ++ /* Make some space */ ++ if (!(devmodulesfile = (char *) get_free_page (GFP_KERNEL))) ++ return -ENOMEM; ++ /* Grab the module list */ ++ get_module_list (devmodulesfile); ++ devmodules_ptr = 0; ++ devmodules_size = strlen (devmodulesfile); ++ n = devmodules_size - devmodules_ptr; ++ } ++ ++ if (n > count) ++ n = count; ++ if (n <= 0) ++ return 0; ++ ++ if (copy_to_user (buf, devmodulesfile, n)) ++ return -EFAULT; ++ devmodules_ptr += n; ++ return n; ++} ++ ++static int devmodules_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) && devmodules_already_opened) ++ return -EAGAIN; ++ ++ MOD_INC_USE_COUNT; ++ ++ while (devmodules_already_opened) { ++ int i, got_signal=0; ++ ++ /* Go to sleep until we get woken up ++ * by devmodules_close or we receive a signal */ ++ module_interruptible_sleep_on(&devmodules_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 devmodules_already_opened must equal 0 */ ++ devmodules_already_opened=1; ++ devmodules_ptr = 0; ++ devmodules_size = 0; ++ ++ return 0; ++} ++ ++static int devmodules_release (struct inode *ip, struct file *fp) ++{ ++ /* Clean up */ ++ if (devmodulesfile != NULL) { ++ free_page ((unsigned long) devmodulesfile); ++ devmodulesfile = NULL; ++ } ++ ++ /* Zero out the reference counter */ ++ devmodules_already_opened=0; ++ ++ /* Wake up anybody that is waiting to access this device */ ++ module_wake_up(&devmodules_waitq); ++ ++ MOD_DEC_USE_COUNT; ++ ++ return 0; ++} ++ ++static int ++devmodules_ioctl (struct inode *ip, struct file *fp, ++ unsigned int cmd, unsigned long arg) ++{ ++ switch (cmd) { ++ ++ case DEVMODULES_COUNT_MODULES:{ ++#ifdef CONFIG_MODULES ++ return(count_kmodules()); ++#else ++ return -ENOSYS; ++#endif ++ } ++ ++ case DEVMODULES_GET_MODULES_LIST:{ ++#if !defined CONFIG_MODULES ++ return -ENOSYS; ++#else ++ ++ int stat, count; ++ struct k_module_item* module_list; ++ ++ ++ /* How many are there? */ ++ count = count_kmodules(); ++ ++ /* Make some space */ ++ module_list = (struct k_module_item *)kmalloc(sizeof(struct k_module_item) * count, GFP_KERNEL); ++ if (!module_list) ++ return -ENOMEM; ++ memset(module_list, 0, sizeof(struct k_module_item) * count); ++ ++ /* Grab the list of modules */ ++ get_kmodule_list(count, module_list); ++ ++ /* Make sure there is enough room */ ++ stat = verify_area (VERIFY_WRITE, (struct k_module_item *) arg, ++ sizeof(struct k_module_item) * count); ++ if (stat) { ++ printk (KERN_INFO ++ "devmodules: Insufficient space was provided.\n"); ++ return stat; ++ } ++ ++ /* Send it to user space */ ++ copy_to_user_ret ((struct k_module_item *) arg, module_list, ++ sizeof(struct k_module_item) * count, ++ -EFAULT); ++ ++ /* Clean up */ ++ kfree( module_list); ++ return 0; ++#endif ++ } ++ ++ default: ++ return -EINVAL; ++ ++ } ++ return 0; ++} ++ ++ ++ ++/**************************************************************************** ++ * Set up the file operations devmodules will support ++ */ ++static struct file_operations devmodules_fops = { ++ devmodules_lseek, ++ devmodules_read, ++ NULL, /* No write */ ++ NULL, /* No readdir */ ++ NULL, /* No poll */ ++ devmodules_ioctl, ++ NULL, /* No mmap */ ++ devmodules_open, ++ NULL, /* flush */ ++ devmodules_release, ++ NULL, /* fsync */ ++ NULL, /* fasync */ ++ NULL, /* check_media_change */ ++ NULL /* revalidate */ ++}; ++ ++static struct miscdevice devmodules_misc_dev = { ++ DEVMODULES_MINOR, ++ "devmodules", ++ &devmodules_fops ++}; ++ ++/* The real driver initialization function */ ++extern int devmodules_init (void) ++{ ++ printk (KERN_INFO "devmodules: driver %s loaded\n", DEVMODULES_VERSION); ++ ++ if (misc_register (&devmodules_misc_dev)) { ++ printk ("devmodules: can't register misc device %d\n", ++ DEVMODULES_MINOR); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++#ifdef MODULE ++ ++MODULE_AUTHOR ("Erik Andersen <andersee@debian.org>"); ++MODULE_DESCRIPTION ++ ("devmodules driver -- exports filesystem and mount information to user space"); ++ ++/* Stub driver initialization function */ ++int init_module (void) ++{ ++ return (devmodules_init ()); ++} ++ ++void cleanup_module (void) ++{ ++ printk (KERN_INFO "devmodules: driver unloaded\n"); ++ misc_deregister (&devmodules_misc_dev); ++} ++ ++#endif /* MODULE */ +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/devmtab.c linux/drivers/char/devmtab.c +--- linux-2.2.15-pre13.virgin/drivers/char/devmtab.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/devmtab.c Tue Mar 7 19:52:45 2000 +@@ -0,0 +1,304 @@ ++/* vi: set sw=8 ts=8: */ ++/* ++ * linux/drivers/char/devmtab.c ++ * ++ * Copyright (C) 2000 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; ++ } ++ ++ case DEVMTAB_SET_ROOTFS_DEVNAME:{ ++ char rootdevname[256]; ++ ++ copy_from_user_ret (rootdevname, (char*) arg, ++ sizeof(rootdevname), -EFAULT); ++ return( set_root_filesystem_name( rootdevname)); ++ } ++ ++ ++ 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 -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/devps.c linux/drivers/char/devps.c +--- linux-2.2.15-pre13.virgin/drivers/char/devps.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/devps.c Tue Mar 7 19:52:45 2000 +@@ -0,0 +1,518 @@ ++/* vi: set sw=8 ts=8: */ ++/* ++ * linux/drivers/char/devps.c ++ * ++ * Copyright (C) 2000 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 -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/makedevps.sh linux/drivers/char/makedevps.sh +--- linux-2.2.15-pre13.virgin/drivers/char/makedevps.sh Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/makedevps.sh Tue Mar 7 23:31:52 2000 +@@ -0,0 +1,6 @@ ++#!/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 ++gcc -Wall -g -I /usr/src/linux/include modules.c -o modules ++ +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/misc.c linux/drivers/char/misc.c +--- linux-2.2.15-pre13.virgin/drivers/char/misc.c Tue Mar 7 19:46:58 2000 ++++ linux/drivers/char/misc.c Tue Mar 7 19:52:45 2000 +@@ -84,6 +84,8 @@ + extern void hfmodem_init(void); + extern int pc110pad_init(void); + extern int pmu_device_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) +@@ -267,6 +269,12 @@ + #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 -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/modules.c linux/drivers/char/modules.c +--- linux-2.2.15-pre13.virgin/drivers/char/modules.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/modules.c Tue Mar 7 23:35:26 2000 +@@ -0,0 +1,102 @@ ++/* vi: set sw=4 ts=4: */ ++/* ++ * devmodules tester ++ * ++ * ++ * Copyright (C) 2000 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/devmodules.h> ++ ++ ++int main (int argc, char **argv) ++{ ++ char device[80] = "/dev/modules"; ++ int fd; /* file descriptor for devmodules device */ ++ int i, num_modules; ++ struct k_module_item *modlist; ++ ++ if (argc > 1 && **(argv + 1) == '-') { ++ fprintf(stderr, "Usage: modules\n\nLists loaded modules\n\nThis version of modules accepts no options.\n\n"); ++ exit(1); ++ } ++ ++ /* open device */ ++ fd = open(device, O_RDONLY); ++ if (fd < 0) { ++ fprintf (stderr, "open failed for `%s': %s\n", ++ device, strerror (errno)); ++ exit (1); ++ } ++ ++ /* How many modules? We need to know to allocate ++ * enough space for later... */ ++ num_modules = ioctl (fd, DEVMODULES_COUNT_MODULES); ++ if (num_modules<0) { ++ fprintf (stderr, "\nDEVMODULES_COUNT_MODULES: %s\n", ++ strerror (errno)); ++ exit (1); ++ } ++ modlist = (struct k_module_item *) calloc ( num_modules, sizeof(struct k_module_item)); ++ ++ /* Grab the list of loaded modules */ ++ if (ioctl (fd, DEVMODULES_GET_MODULES_LIST, modlist)<0) { ++ fprintf (stderr, "\nDEVMODULES_GET_MODULES_LIST: %s\n", ++ strerror (errno)); ++ exit (1); ++ } ++ fprintf( stdout, "\nEquivalent of /proc/modules:\n"); ++ for( i = 0 ; i < num_modules ; i++) { ++ fprintf( stdout, "%-20s%8lu%4ld", modlist[i].name, ++ modlist[i].size, modlist[i].usecount); ++ if (modlist[i].flags & MOD_DELETED) ++ fprintf( stdout, " (deleted)"); ++ else if (modlist[i].flags & MOD_RUNNING) { ++ if (modlist[i].flags & MOD_AUTOCLEAN) ++ fprintf( stdout, " (autoclean)"); ++ if (!(modlist[i].flags & MOD_USED_ONCE)) ++ fprintf( stdout, " (unused)"); ++ } ++ else if (modlist[i].flags & MOD_INITIALIZING) ++ fprintf( stdout, " (initializing)"); ++ else ++ fprintf( stdout, " (uninitialized)"); ++ /* TODO: Add in module reference list */ ++ fprintf( stdout, "\n"); ++ } ++ ++ /* Clean up */ ++ free( modlist); ++ if (close (fd) != 0) { ++ fprintf (stderr, "close failed for `%s': %s\n", ++ device, strerror (errno)); ++ exit (1); ++ } ++ ++ exit (0); ++} ++ +diff -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/mounts.c linux/drivers/char/mounts.c +--- linux-2.2.15-pre13.virgin/drivers/char/mounts.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/mounts.c Tue Mar 7 23:29:27 2000 +@@ -0,0 +1,124 @@ ++/* vi: set sw=4 ts=4: */ ++/* ++ * devmtab tester ++ * ++ * ++ * Copyright (C) 2000 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); ++ } ++ ++ ++ /* Change the root filesystem's device name */ ++ if (ioctl (fd, DEVMTAB_SET_ROOTFS_DEVNAME, "/dev/foo")<0) { ++ fprintf (stderr, "\nDEVMTAB_SET_ROOTFS_DEVNAME: %s\n", ++ strerror (errno)); ++ exit (1); ++ } ++ ++ ++ /* 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 -ur --new-file linux-2.2.15-pre13.virgin/drivers/char/ps-devps.c linux/drivers/char/ps-devps.c +--- linux-2.2.15-pre13.virgin/drivers/char/ps-devps.c Wed Dec 31 17:00:00 1969 ++++ linux/drivers/char/ps-devps.c Tue Mar 7 19:52:45 2000 +@@ -0,0 +1,147 @@ ++/* vi: set sw=4 ts=4: */ ++/* ++ * Mini ps implementation for use with the Linux devps driver ++ * ++ * ++ * Copyright (C) 2000 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); ++ 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 -ur --new-file linux-2.2.15-pre13.virgin/fs/Makefile linux/fs/Makefile +--- linux-2.2.15-pre13.virgin/fs/Makefile Mon Mar 6 10:23:14 2000 ++++ linux/fs/Makefile Tue Mar 7 19:52:45 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 -ur --new-file linux-2.2.15-pre13.virgin/fs/proc/array.c linux/fs/proc/array.c +--- linux-2.2.15-pre13.virgin/fs/proc/array.c Tue Mar 7 19:47:04 2000 ++++ linux/fs/proc/array.c Tue Mar 7 19:52:45 2000 +@@ -44,6 +44,7 @@ + * + */ + ++#include <linux/module.h> + #include <linux/types.h> + #include <linux/errno.h> + #include <linux/sched.h> +@@ -1306,10 +1307,6 @@ + } + #endif + +-#ifdef CONFIG_MODULES +-extern int get_module_list(char *); +-extern int get_ksyms_list(char *, char **, off_t, int); +-#endif + extern int get_device_list(char *); + extern int get_partition_list(char *); + extern int get_filesystem_list(char *); +diff -ur --new-file linux-2.2.15-pre13.virgin/fs/super.c linux/fs/super.c +--- linux-2.2.15-pre13.virgin/fs/super.c Tue Jan 4 11:12:23 2000 ++++ linux/fs/super.c Tue Mar 7 19:52:45 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> + +@@ -309,7 +311,57 @@ + { 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; +@@ -379,8 +431,54 @@ + + 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 int set_root_filesystem_name( char *newname) ++{ ++ struct vfsmount *tmp = vfsmntlist; ++ char *name; ++ ++ if (tmp && newname) { ++ kfree( tmp->mnt_devname); ++ name = (char *) kmalloc(strlen(newname)+1, GFP_KERNEL); ++ if (!name) ++ return -ENOMEM; ++ strcpy(name, newname); ++ tmp->mnt_devname = name; ++ } ++ return 0; ++} ++EXPORT_SYMBOL(set_root_filesystem_name); ++ ++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; +@@ -394,6 +492,7 @@ + } + return len; + } ++EXPORT_SYMBOL(get_filesystem_list); + + struct file_system_type *get_fs_type(const char *name) + { +diff -ur --new-file linux-2.2.15-pre13.virgin/include/linux/devmodules.h linux/include/linux/devmodules.h +--- linux-2.2.15-pre13.virgin/include/linux/devmodules.h Wed Dec 31 17:00:00 1969 ++++ linux/include/linux/devmodules.h Tue Mar 7 23:37:48 2000 +@@ -0,0 +1,55 @@ ++/* vi: set sw=8 ts=8: */ ++/* ++ * -- <linux/devmodules.h> ++ * ++ * Copyright (C) 2000 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 lsmod(8) may ++ * obtain all the information they need to do their jobs without needing to ++ * use /proc. ++ * ++ */ ++ ++#ifndef _LINUX_DEVMODULES_H ++#define _LINUX_DEVMODULES_H ++ ++ ++/******************************************************* ++ * The list of all ioctl(2) commands suported by devmodules. ++ * For the devmodules ioctls, I have commandeered some of the ++ * higher bits of byte 0xeb. ++ *******************************************************/ ++#define DEVMODULES_COUNT_MODULES 0xebba /* How many modules are there? */ ++#define DEVMODULES_GET_MODULES_LIST 0xebbb /* Get a list of all installed modules */ ++ ++/******************************************************* ++ * devmodules ioctl(2) structures ++ *******************************************************/ ++ ++/* An array of these is returned by the DEVMODULES_GET_MODULES_LIST ioctl. ++ */ ++struct k_module_item { ++ char name[255];/* Name of the module */ ++ unsigned long size; /* Size of module in bytes */ ++ unsigned long flags; /* Flags set by the module */ ++ long usecount; /* Module use count value */ ++ ++ /* TODO: Add in module reference list */ ++ ++}; ++ ++/* Possible bits for k_module_item's flags. */ ++#define MOD_UNINITIALIZED 0 ++#define MOD_RUNNING 1 ++#define MOD_DELETED 2 ++#define MOD_AUTOCLEAN 4 ++#define MOD_VISITED 8 ++#define MOD_USED_ONCE 16 ++#define MOD_JUST_FREED 32 ++#define MOD_INITIALIZING 64 ++ ++ ++#endif /* _LINUX_DEVMODULES_H */ +diff -ur --new-file linux-2.2.15-pre13.virgin/include/linux/devmtab.h linux/include/linux/devmtab.h +--- linux-2.2.15-pre13.virgin/include/linux/devmtab.h Wed Dec 31 17:00:00 1969 ++++ linux/include/linux/devmtab.h Tue Mar 7 19:52:45 2000 +@@ -0,0 +1,55 @@ ++/* vi: set sw=8 ts=8: */ ++/* ++ * -- <linux/devmtab.h> ++ * ++ * Copyright (C) 2000 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 -ur --new-file linux-2.2.15-pre13.virgin/include/linux/devps.h linux/include/linux/devps.h +--- linux-2.2.15-pre13.virgin/include/linux/devps.h Wed Dec 31 17:00:00 1969 ++++ linux/include/linux/devps.h Tue Mar 7 19:52:45 2000 +@@ -0,0 +1,78 @@ ++/* ++ * -- <linux/devps.h> ++ * ++ * Copyright (C) 2000 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 -ur --new-file linux-2.2.15-pre13.virgin/include/linux/fs.h linux/include/linux/fs.h +--- linux-2.2.15-pre13.virgin/include/linux/fs.h Mon Mar 6 10:23:14 2000 ++++ linux/include/linux/fs.h Tue Mar 7 21:14:11 2000 +@@ -566,6 +566,17 @@ + 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); ++extern int set_root_filesystem_name( char *newname); ++ + /* + * VFS helper functions.. + */ +diff -ur --new-file linux-2.2.15-pre13.virgin/include/linux/miscdevice.h linux/include/linux/miscdevice.h +--- linux-2.2.15-pre13.virgin/include/linux/miscdevice.h Mon Aug 9 13:04:41 1999 ++++ linux/include/linux/miscdevice.h Tue Mar 7 22:24:50 2000 +@@ -11,6 +11,9 @@ + #define APOLLO_MOUSE_MINOR 7 + #define PC110PAD_MINOR 9 + #define MAC_MOUSE_MINOR 10 ++#define DEVPS_MINOR 21 ++#define DEVMTAB_MINOR 22 ++#define DEVMODULES_MINOR 23 + #define WATCHDOG_MINOR 130 /* Watchdog timer */ + #define TEMP_MINOR 131 /* Temperature Sensor */ + #define RTC_MINOR 135 +diff -ur --new-file linux-2.2.15-pre13.virgin/include/linux/module.h linux/include/linux/module.h +--- linux-2.2.15-pre13.virgin/include/linux/module.h Tue Mar 7 19:47:04 2000 ++++ linux/include/linux/module.h Tue Mar 7 21:26:48 2000 +@@ -8,6 +8,7 @@ + #define _LINUX_MODULE_H + + #include <linux/config.h> ++#include <linux/types.h> + + #ifdef __GENKSYMS__ + # define _set_ver(sym) sym +@@ -143,6 +144,21 @@ + + /* Find a symbol exported by the kernel or another module */ + extern unsigned long get_module_symbol(char *, char *); ++/* Used by /proc and devmodules to export kernel symbols */ ++extern int get_ksyms_list(char *buf, char **start, off_t offset, int length); ++/* Used by /proc and devmodules to export the list of modules ++ * in human readable form */ ++extern int get_module_list(char *); ++#if defined CONFIG_DEVMODULES || defined CONFIG_DEVMODULES_MODULE ++#include <linux/devmodules.h> ++/* Used by devmodules to export the list of modules ++ * in machine readable form */ ++extern void get_kmodule_list( int count, struct k_module_item* modlst); ++/* Used by devmodules to export the number of modules */ ++extern int count_kmodules(void); ++#endif ++ ++ + + #if defined(MODULE) && !defined(__GENKSYMS__) + +diff -ur --new-file linux-2.2.15-pre13.virgin/kernel/Makefile linux/kernel/Makefile +--- linux-2.2.15-pre13.virgin/kernel/Makefile Wed May 6 12:01:46 1998 ++++ linux/kernel/Makefile Tue Mar 7 22:47:07 2000 +@@ -11,11 +11,11 @@ + $(CPP) -traditional $< -o $*.s + + O_TARGET := kernel.o +-O_OBJS = sched.o dma.o fork.o exec_domain.o panic.o printk.o sys.o \ +- module.o exit.o itimer.o info.o time.o softirq.o resource.o \ ++O_OBJS = sched.o dma.o exec_domain.o panic.o printk.o sys.o \ ++ exit.o itimer.o info.o time.o softirq.o resource.o \ + sysctl.o acct.o capability.o + +-OX_OBJS += signal.o ++OX_OBJS += fork.o module.o signal.o + + ifeq ($(CONFIG_KMOD),y) + O_OBJS += kmod.o +diff -ur --new-file linux-2.2.15-pre13.virgin/kernel/fork.c linux/kernel/fork.c +--- linux-2.2.15-pre13.virgin/kernel/fork.c Tue Oct 26 18:53:42 1999 ++++ linux/kernel/fork.c Tue Mar 7 19:52:45 2000 +@@ -36,6 +36,7 @@ + kmem_cache_t *files_cachep; + + struct task_struct *pidhash[PIDHASH_SZ]; ++EXPORT_SYMBOL(pidhash); + + struct task_struct **tarray_freelist = NULL; + spinlock_t taskslot_lock = SPIN_LOCK_UNLOCKED; +diff -ur --new-file linux-2.2.15-pre13.virgin/kernel/module.c linux/kernel/module.c +--- linux-2.2.15-pre13.virgin/kernel/module.c Tue Mar 7 19:47:05 2000 ++++ linux/kernel/module.c Tue Mar 7 22:42:58 2000 +@@ -816,10 +816,40 @@ + module_unmap(mod); + } + ++/* Used by devmodules to export the number of modules */ ++extern int ++count_kmodules(void) ++{ ++ int i=0; ++ struct module *mod; ++ for (mod = module_list; mod != &kernel_module; mod = mod->next, i++); ++ return i; ++} ++EXPORT_SYMBOL(count_kmodules); ++ ++extern void ++get_kmodule_list( int count, struct k_module_item* modlst) ++{ ++ int i = 0; ++ struct module *mod = module_list; ++ ++ while (mod && i < count) ++ { ++ strncpy(modlst[i].name, mod->name, ++ sizeof(modlst[i].name)); ++ modlst[i].size = mod->size; ++ modlst[i].flags = mod->flags; ++ modlst[i].usecount = (long)atomic_read(&mod->uc.usecount); ++ mod = mod->next; ++ i++; ++ } ++} ++EXPORT_SYMBOL(get_kmodule_list); ++ ++ + /* + * Called by the /proc file system to return a current list of modules. + */ +- + int get_module_list(char *p) + { + size_t left = PAGE_SIZE; +@@ -897,11 +927,11 @@ + fini: + return PAGE_SIZE - left; + } ++EXPORT_SYMBOL(get_module_list); + + /* + * Called by the /proc file system to return a current list of ksyms. + */ +- + int + get_ksyms_list(char *buf, char **start, off_t offset, int length) + { |