Import pre2.0.11

CREDITS

@@ -735,7 +735,7 @@ D: Author of the dialog utility, foundation
 D: for Menuconfig's lxdialog.
 
 N: Volker Lendecke
-E: lendecke@namu01.gwdg.de
+E: lendecke@namu01.Num.Math.Uni-Goettingen.de
 D: Kernel smbfs (to mount WfW, NT and OS/2 network drives.)
 D: NCP filesystem support (to mount NetWare volumes)
 S: Innersteweg 11

Documentation/isdn/README.audio

@@ -32,7 +32,7 @@ All audio mode commands have the one of the following form:
 where xx is a two-character code and v are alphanumerical parameters.
 The following commands are supported:
 
-        AT+VNH=x         Auto hangup settting. NO EFFECT, supported
+        AT+VNH=x         Auto hangup setting. NO EFFECT, supported
                          for compatibility only.
         AT+VNH?          Always reporting "1"
         AT+VNH=?         Always reporting "1"
@@ -100,7 +100,7 @@ General behavior and description of data formats/protocol.
     <DLE>c                  FAX calling tone received.
     <DLE>b                  busy tone received.
     <DLE>q                  quiet. Silence detected after non-silence.
-    <DLE>s                  silence. Silence dectected from the
+    <DLE>s                  silence. Silence detected from the
                             start of recording.
 
     Any character sent by the application, except XON (0x11) or XOFF (0x13)
@@ -109,7 +109,7 @@ General behavior and description of data formats/protocol.
   Audio playback.
 
     When sending audio data, upon AT+VTX command, emulator responds with
-    CONNECT, and starts transfering data from application to the phone line.
+    CONNECT, and starts transferring data from application to the phone line.
     The same DLE sequences apply to this mode.
 
 

MAINTAINERS

@@ -217,7 +217,7 @@ S:	Maintained
 
 NCP FILESYSTEM:
 P:	Volker Lendecke
-M:	lendecke@namu01.gwdg.de
+M:	lendecke@namu01.Num.Math.Uni-Goettingen.de
 L:	linware@sh.cvut.cz
 S:	Maintained
 
@@ -253,7 +253,7 @@ S:     Maintained
 
 SMB FILESYSTEM:
 P:	Volker Lendecke
-M:	lendecke@namu01.gwdg.de
+M:	lendecke@namu01.Num.Math.Uni-Goettingen.de
 L:	samba@listproc.anu.edu.au
 S:	Odd Fixes
 

Makefile

 VERSION = 1
 PATCHLEVEL = 99
-SUBLEVEL = 10
+SUBLEVEL = 11
 
 ARCH = i386
 

arch/i386/defconfig

@@ -142,6 +142,7 @@ CONFIG_NFS_FS=y
 CONFIG_ISO9660_FS=y
 # CONFIG_HPFS_FS is not set
 # CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
 
 #
 # Character devices

arch/i386/kernel/time.c

@@ -122,7 +122,7 @@ static unsigned long do_fast_gettimeoffset(void)
 	/*
  	 * Due to rounding errors (and jiffies inconsistencies),
 	 * we need to check the result so that we'll get a timer
-	 * that is monotonous.
+	 * that is monotonic.
 	 */
 	if (edx >= 997670/HZ)
 		edx = 997670/HZ-1;

drivers/block/ide-cd.c

@@ -98,6 +98,8 @@
  *                        from Gerhard Zuber <zuber@berlin.snafu.de>.
  *                       Let open succeed even if there's no loaded disc.
  * 3.13  May 19, 1996 -- Fixes for changer code.
+ * 3.14  May 29, 1996 -- Add work-around for Vertos 600.
+ *                        (From Hennus Bergman <hennus@sky.ow.nl>.)
  *
  * NOTE: Direct audio reads will only work on some types of drive.
  * So far, i've received reports of success for Sony and Toshiba drives.
@@ -2597,6 +2599,13 @@ void ide_cdrom_setup (ide_drive_t *drive)
 			CDROM_CONFIG_FLAGS (drive)->subchan_as_bcd = 1;
 		}
 
+		else if (strcmp (drive->id->model, "V006E0DS") == 0 &&
+		    drive->id->fw_rev[4] == '1' &&
+		    drive->id->fw_rev[6] <= '2') {
+			/* Vertos 600 ESD. */
+			CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd = 1;
+		}
+
 		else if (strcmp (drive->id->model,
 				 "NEC CD-ROM DRIVE:260") == 0 &&
 			 strcmp (drive->id->fw_rev, "1.01") == 0) {
@@ -2624,14 +2633,15 @@ void ide_cdrom_setup (ide_drive_t *drive)
 
 
 /*
- * TODO:
- *  CDROMRESET
- *  Lock the door when a read request completes successfully and the
- *   door is not already locked.  Also try to reorganize to reduce
- *   duplicated functionality between read and ioctl paths?
- *  Establish interfaces for an IDE port driver, and break out the cdrom
- *   code into a loadable module.
- *  Support changers better.
+ * TODO (for 2.1?):
+ *  Avoid printing error messages for expected errors from the drive.
+ *  Integrate with generic cdrom driver.
+ *  Query the drive to find what features are available
+ *   before trying to use them.
+ *  Integrate spindown time adjustment patch.
+ *  Modularize.
+ *  CDROMRESET ioctl.
+ *  Better support for changers.
  */
 
 

drivers/isdn/isdn_tty.c

@@ -1103,7 +1103,7 @@ static int isdn_tty_ioctl(struct tty_struct *tty, struct file *file,
                         return isdn_tty_set_modem_info(info, cmd, (uint *) arg);
                 case TIOCSERGETLSR:	/* Get line status register */
 #ifdef ISDN_DEBUG_MODEM_IOCTL
-                        printk(KERN_DEBUG "ttyI%d ioctl TIOSERGETLSR\n", info->line);
+                        printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line);
 #endif
                         error = verify_area(VERIFY_WRITE, (void *) arg, sizeof(uint));
                         if (error)

drivers/isdn/teles/isdnl3.c

@@ -2,7 +2,7 @@
  *
  * $Log: isdnl3.c,v $
  * Revision 1.6  1996/05/21 11:33:50  keil
- * Adding SETUP_ACKNOWLEGDE as answer of a SETUP message.
+ * Adding SETUP_ACKNOWLEDGE as answer of a SETUP message.
  *
  * Revision 1.5  1996/05/18 01:37:16  fritz
  * Added spelling corrections and some minor changes

drivers/net/Space.c

@@ -263,8 +263,16 @@ static struct device atp_dev = {
    which means "don't probe".  These entries exist to only to provide empty
    slots which may be enabled at boot-time. */
 
+static struct device eth7_dev = {
+    "eth7", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, NEXT_DEV, ethif_probe };
+static struct device eth6_dev = {
+    "eth6", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, &eth7_dev, ethif_probe };
+static struct device eth5_dev = {
+    "eth5", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, &eth6_dev, ethif_probe };
+static struct device eth4_dev = {
+    "eth4", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, &eth5_dev, ethif_probe };
 static struct device eth3_dev = {
-    "eth3", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, NEXT_DEV, ethif_probe };
+    "eth3", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, &eth4_dev, ethif_probe };
 static struct device eth2_dev = {
     "eth2", 0,0,0,0,0xffe0 /* I/O base*/, 0,0,0,0, &eth3_dev, ethif_probe };
 static struct device eth1_dev = {

drivers/net/new_tunnel.c

@@ -261,6 +261,7 @@ printk("Required room: %d, Tunnel hlen: %d\n", max_headroom, TUNL_HLEN);
 		 * and new_skb->ip_hdr is the IP header of the old packet.
 		 */
 		new_skb->ip_hdr = (struct iphdr *) skb_put(new_skb, skb->len);
+		new_skb->dev = skb->dev;
 		memcpy(new_skb->ip_hdr, skb->data, skb->len);
 		memset(new_skb->proto_priv, 0, sizeof(skb->proto_priv));
 

drivers/scsi/Config.in

@@ -14,16 +14,21 @@ bool 'Verbose SCSI error reporting (kernel size +=12K)' CONFIG_SCSI_CONSTANTS
 mainmenu_option next_comment
 comment 'SCSI low-level drivers'
 
-dep_tristate 'AdvanSys SCSI support' CONFIG_SCSI_ADVANSYS $CONFIG_SCSI
+dep_tristate '7000FASST SCSI support' CONFIG_SCSI_7000FASST $CONFIG_SCSI
 dep_tristate 'Adaptec AHA152X support' CONFIG_SCSI_AHA152X $CONFIG_SCSI
 dep_tristate 'Adaptec AHA1542 support' CONFIG_SCSI_AHA1542 $CONFIG_SCSI
 dep_tristate 'Adaptec AHA1740 support' CONFIG_SCSI_AHA1740 $CONFIG_SCSI
 dep_tristate 'Adaptec AHA274X/284X/294X support' CONFIG_SCSI_AIC7XXX $CONFIG_SCSI
+dep_tristate 'AdvanSys SCSI support' CONFIG_SCSI_ADVANSYS $CONFIG_SCSI
+dep_tristate 'Always IN2000 SCSI support' CONFIG_SCSI_IN2000 $CONFIG_SCSI
+if [ "$CONFIG_PCI" = "y" ]; then
+  bool 'AM53/79C974 PCI SCSI support' CONFIG_SCSI_AM53C974
+fi
 dep_tristate 'BusLogic SCSI support' CONFIG_SCSI_BUSLOGIC $CONFIG_SCSI
 dep_tristate 'DTC3180/3280 SCSI support' CONFIG_SCSI_DTC3280 $CONFIG_SCSI
+dep_tristate 'EATA ISA/EISA (DPT PM2011/021/012/022/122/322) support' CONFIG_SCSI_EATA $CONFIG_SCSI
 dep_tristate 'EATA-DMA (DPT, NEC, AT&T, SNI, AST, Olivetti, Alphatronix) support' CONFIG_SCSI_EATA_DMA $CONFIG_SCSI
 dep_tristate 'EATA-PIO (old DPT PM2001, PM2012A) support' CONFIG_SCSI_EATA_PIO $CONFIG_SCSI
-dep_tristate 'UltraStor 14F/34F support' CONFIG_SCSI_U14_34F $CONFIG_SCSI
 dep_tristate 'Future Domain 16xx SCSI support' CONFIG_SCSI_FUTURE_DOMAIN $CONFIG_SCSI
 dep_tristate 'Generic NCR5380/53c400 SCSI support' CONFIG_SCSI_GENERIC_NCR5380 $CONFIG_SCSI
 if [ "$CONFIG_SCSI_GENERIC_NCR5380" != "n" ]; then
@@ -32,6 +37,7 @@ if [ "$CONFIG_SCSI_GENERIC_NCR5380" != "n" ]; then
 		"Port CONFIG_SCSI_G_NCR5380_PORT \
 		Memory CONFIG_SCSI_G_NCR5380_MEM" Port
 fi
+dep_tristate 'NCR53c406a SCSI support' CONFIG_SCSI_NCR53C406A $CONFIG_SCSI
 if [ "$CONFIG_PCI" = "y" ]; then
   dep_tristate 'NCR53c7,8xx SCSI support'  CONFIG_SCSI_NCR53C7xx $CONFIG_SCSI
   if [ "$CONFIG_SCSI_NCR53C7xx" != "n" ]; then
@@ -40,7 +46,7 @@ if [ "$CONFIG_PCI" = "y" ]; then
     bool '   allow DISCONNECT' CONFIG_SCSI_NCR53C7xx_DISCONNECT
   fi
 fi
-dep_tristate 'Always IN2000 SCSI support' CONFIG_SCSI_IN2000 $CONFIG_SCSI
+dep_tristate 'IOMEGA Parallel Port ZIP drive SCSI support' CONFIG_SCSI_PPA $CONFIG_SCSI
 dep_tristate 'PAS16 SCSI support' CONFIG_SCSI_PAS16 $CONFIG_SCSI
 dep_tristate 'Qlogic FAS SCSI support' CONFIG_SCSI_QLOGIC_FAS $CONFIG_SCSI
 if [ "$CONFIG_PCI" = "y" ]; then
@@ -50,11 +56,7 @@ if [ "$CONFIG_PCI" = "y" ]; then
 fi
 dep_tristate 'Seagate ST-02 and Future Domain TMC-8xx SCSI support' CONFIG_SCSI_SEAGATE $CONFIG_SCSI
 dep_tristate 'Trantor T128/T128F/T228 SCSI support' CONFIG_SCSI_T128 $CONFIG_SCSI
+dep_tristate 'UltraStor 14F/34F support' CONFIG_SCSI_U14_34F $CONFIG_SCSI
 dep_tristate 'UltraStor SCSI support' CONFIG_SCSI_ULTRASTOR $CONFIG_SCSI
-dep_tristate '7000FASST SCSI support' CONFIG_SCSI_7000FASST $CONFIG_SCSI
-dep_tristate 'EATA ISA/EISA (DPT PM2011/021/012/022/122/322) support' CONFIG_SCSI_EATA $CONFIG_SCSI
-dep_tristate 'NCR53c406a SCSI support' CONFIG_SCSI_NCR53C406A $CONFIG_SCSI
-dep_tristate 'IOMEGA Parallel Port ZIP drive SCSI support' CONFIG_SCSI_PPA $CONFIG_SCSI
-bool 'AM53/79C974 PCI SCSI support' CONFIG_SCSI_AM53C974
 #dep_tristate 'SCSI debugging host adapter' CONFIG_SCSI_DEBUG $CONFIG_SCSI
 endmenu

drivers/scsi/atari_scsi.c

@@ -87,6 +87,7 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/blk.h>
+#include <linux/interrupt.h>
 
 #include <asm/bootinfo.h>
 #include <asm/atarihw.h>

drivers/scsi/scsi.c

@@ -38,18 +38,20 @@
 #include <linux/config.h>
 #include <linux/module.h>
 
-#include <asm/system.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/malloc.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
-#include<linux/stat.h>
-
+#include <linux/stat.h>
 #include <linux/blk.h>
+#include <linux/interrupt.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/dma.h>
+
 #include "scsi.h"
 #include "hosts.h"
 #include "constants.h"

drivers/scsi/scsi_ioctl.c

@@ -171,7 +171,7 @@ static int ioctl_command(Scsi_Device *dev, void *buffer)
     unsigned char opcode;
     int inlen, outlen, cmdlen;
     int needed, buf_needed;
-    int result;
+    int timeout, retries, result;
     
     if (!buffer)
 	return -EINVAL;
@@ -239,6 +239,22 @@ static int ioctl_command(Scsi_Device *dev, void *buffer)
      */
     cmd[1] = ( cmd[1] & 0x1f ) | (dev->lun << 5);
     
+    switch (opcode)
+      {
+      case FORMAT_UNIT:
+	timeout =  2 * 60 * 60 * HZ; /* 2 Hours */
+	retries = 1;
+	break;
+      case START_STOP:
+	timeout =  60 * HZ;	/* 60 seconds */
+	retries = 1;
+	break;
+      default:
+	timeout = MAX_TIMEOUT;
+	retries = MAX_RETRIES;
+	break;
+      }
+
 #ifndef DEBUG_NO_CMD
     
     SCpnt = allocate_device(NULL, dev, 1);
@@ -246,8 +262,8 @@ static int ioctl_command(Scsi_Device *dev, void *buffer)
     {
 	struct semaphore sem = MUTEX_LOCKED;
 	SCpnt->request.sem = &sem;
-	scsi_do_cmd(SCpnt,  cmd,  buf, needed,  scsi_ioctl_done,  MAX_TIMEOUT, 
-		    MAX_RETRIES);
+	scsi_do_cmd(SCpnt,  cmd,  buf, needed,  scsi_ioctl_done,
+		    timeout, retries);
 	down(&sem);
     }
     

drivers/scsi/sd.c

@@ -34,6 +34,8 @@
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/errno.h>
+#include <linux/interrupt.h>
+
 #include <asm/system.h>
 
 #define MAJOR_NR SCSI_DISK_MAJOR

drivers/scsi/sr.c

@@ -28,6 +28,7 @@
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/cdrom.h>
+#include <linux/interrupt.h>
 #include <asm/system.h>
 
 #define MAJOR_NR SCSI_CDROM_MAJOR

drivers/sound/Config.in

-#
-# Sound driver configuration
-#
-#--------
-# There is another config script which is compatible with rest of
-# the kernel. It can be activated by running 'make mkscript' in this
-# directory. Please note that this is an _experimental_ feature which
-# doesn't work with all cards (PSS, SM Wave, AudioTriX Pro).
-#--------
-#
-$MAKE -C drivers/sound config || exit 1
+bool 'ProAudioSpectrum 16 support' CONFIG_PAS
+bool 'SoundBlaster (SB, SBPro, SB16, clones) support' CONFIG_SB
+bool 'Generic OPL2/OPL3 FM synthesizer support' CONFIG_ADLIB
+bool 'Gravis Ultrasound support' CONFIG_GUS
+bool 'MPU-401 support (NOT for SB16)' CONFIG_MPU401
+bool '6850 UART Midi support' CONFIG_UART6850
+bool 'PSS (ECHO-ADI2111) support' CONFIG_PSS
+bool '16 bit sampling option of GUS (_NOT_ GUS MAX)' CONFIG_GUS16
+bool 'GUS MAX support' CONFIG_GUSMAX
+bool 'Microsoft Sound System support' CONFIG_MSS
+bool 'Ensoniq Soundscape support' CONFIG_SSCAPE
+bool 'MediaTriX AudioTriX Pro support' CONFIG_TRIX
+bool 'Support for MAD16 and/or Mozart based cards' CONFIG_MAD16
+bool 'Support for Crystal CS4232 based (PnP) cards' CONFIG_CS4232
+bool 'Support for Turtle Beach Wave Front (Maui, Tropez) synthesizers' CONFIG_MAUI
+bool '/dev/dsp and /dev/audio support' CONFIG_AUDIO
+bool 'MIDI interface support' CONFIG_MIDI
+bool 'FM synthesizer (YM3812/OPL-3) support' CONFIG_YM3812
+bool 'Support for SM Wave' CONFIG_SMWAVE
+
+if [ "$CONFIG_AEDSP16" = "y" ]; then
+hex 'I/O base for Audio Excel DSP 16 220 or 240' AEDSP16_BASE 220
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+hex 'I/O base for SB Check from manual of the card' SBC_BASE 220
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+int 'SoundBlaster IRQ Check from manual of the card' SBC_IRQ 7
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+int 'SoundBlaster DMA 0, 1 or 3' SBC_DMA 1
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+int 'SoundBlaster 16 bit DMA (_REQUIRED_for SB16, Jazz16, SMW) 5, 6 or 7' SB_DMA2 5
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+hex 'MPU401 I/O base of SB16, Jazz16 and ES1688 Check from manual of the card' SB_MPU_BASE 0
+fi
+
+if [ "$CONFIG_SB" = "y" ]; then
+int 'SB MPU401 IRQ (Jazz16, SM Wave and ES1688) Check from manual of the card' SB_MPU_IRQ -1
+fi
+
+if [ "$CONFIG_PAS" = "y" ]; then
+int 'PAS16 IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14 or 15' PAS_IRQ 10
+fi
+
+if [ "$CONFIG_PAS" = "y" ]; then
+int 'PAS16 DMA 0, 1, 3, 5, 6 or 7' PAS_DMA 3
+fi
+
+if [ "$CONFIG_GUS" = "y" ]; then
+hex 'I/O base for GUS 210, 220, 230, 240, 250 or 260' GUS_BASE 220
+fi
+
+if [ "$CONFIG_GUS" = "y" ]; then
+int 'GUS IRQ 3, 5, 7, 9, 11, 12 or 15' GUS_IRQ 15
+fi
+
+if [ "$CONFIG_GUS" = "y" ]; then
+int 'GUS DMA 1, 3, 5, 6 or 7' GUS_DMA 6
+fi
+
+if [ "$CONFIG_GUS" = "y" ]; then
+int 'Second DMA channel for GUS 1, 3, 5, 6 or 7' GUS_DMA2 -1
+fi
+
+if [ "$CONFIG_GUS16" = "y" ]; then
+hex 'I/O base for the 16 bit daughtercard of GUS 530, 604, E80 or F40' GUS16_BASE 530
+fi
+
+if [ "$CONFIG_GUS16" = "y" ]; then
+int 'GUS 16 bit daughtercard IRQ 3, 4, 5, 7, or 9' GUS16_IRQ 7
+fi
+
+if [ "$CONFIG_GUS16" = "y" ]; then
+int 'GUS DMA 0, 1 or 3' GUS16_DMA 3
+fi
+
+if [ "$CONFIG_MPU401" = "y" ]; then
+hex 'I/O base for MPU401 Check from manual of the card' MPU_BASE 330
+fi
+
+if [ "$CONFIG_MPU401" = "y" ]; then
+int 'MPU401 IRQ Check from manual of the card' MPU_IRQ 9
+fi
+
+if [ "$CONFIG_MAUI" = "y" ]; then
+hex 'I/O base for Maui 210, 230, 260, 290, 300, 320, 338 or 330' MAUI_BASE 330
+fi
+
+if [ "$CONFIG_MAUI" = "y" ]; then
+int 'Maui IRQ 5, 9, 12 or 15' MAUI_IRQ 9
+fi
+
+if [ "$CONFIG_UART6850" = "y" ]; then
+hex 'I/O base for UART 6850 MIDI port (Unknown)' U6850_BASE 0
+fi
+
+if [ "$CONFIG_UART6850" = "y" ]; then
+int 'UART6850 IRQ (Unknown)' U6850_IRQ -1
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+hex 'PSS I/O base 220 or 240' PSS_BASE 220
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+hex 'PSS audio I/O base 530, 604, E80 or F40' PSS_MSS_BASE 530
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+int 'PSS audio IRQ 7, 9, 10 or 11' PSS_MSS_IRQ 11
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+int 'PSS audio DMA 0, 1 or 3' PSS_MSS_DMA 3
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+hex 'PSS MIDI I/O base ' PSS_MPU_BASE 330
+fi
+
+if [ "$CONFIG_PSS" = "y" ]; then
+int 'PSS MIDI IRQ 3, 4, 5, 7 or 9' PSS_MPU_IRQ 9
+fi
 
+if [ "$CONFIG_MSS" = "y" ]; then
+hex 'MSS/WSS I/O base 530, 604, E80 or F40' MSS_BASE 530
+fi
+
+if [ "$CONFIG_MSS" = "y" ]; then
+int 'MSS/WSS IRQ 7, 9, 10 or 11' MSS_IRQ 11
+fi
+
+if [ "$CONFIG_MSS" = "y" ]; then
+int 'MSS/WSS DMA 0, 1 or 3' MSS_DMA 3
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+hex 'Soundscape MIDI I/O base ' SSCAPE_BASE 330
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+int 'Soundscape MIDI IRQ ' SSCAPE_IRQ 9
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+int 'Soundscape initialization DMA 0, 1 or 3' SSCAPE_DMA 3
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+hex 'Soundscape audio I/O base 534, 608, E84 or F44' SSCAPE_MSS_BASE 534
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+int 'Soundscape audio IRQ 7, 9, 10 or 11' SSCAPE_MSS_IRQ 11
+fi
+
+if [ "$CONFIG_SSCAPE" = "y" ]; then
+int 'Soundscape audio DMA 0, 1 or 3' SSCAPE_MSS_DMA 0
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+hex 'AudioTriX audio I/O base 530, 604, E80 or F40' TRIX_BASE 530
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX audio IRQ 7, 9, 10 or 11' TRIX_IRQ 11
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX audio DMA 0, 1 or 3' TRIX_DMA 0
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX second (duplex) DMA 0, 1 or 3' TRIX_DMA2 3
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+hex 'AudioTriX MIDI I/O base 330, 370, 3B0 or 3F0' TRIX_MPU_BASE 330
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX MIDI IRQ 3, 4, 5, 7 or 9' TRIX_MPU_IRQ 9
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+hex 'AudioTriX SB I/O base 220, 210, 230, 240, 250, 260 or 270' TRIX_SB_BASE 220
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX SB IRQ 3, 4, 5 or 7' TRIX_SB_IRQ 7
+fi
+
+if [ "$CONFIG_TRIX" = "y" ]; then
+int 'AudioTriX SB DMA 1 or 3' TRIX_SB_DMA 1
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+hex 'CS4232 audio I/O base 530, 604, E80 or F40' CS4232_BASE 530
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+int 'CS4232 audio IRQ 5, 7, 9, 11, 12 or 15' CS4232_IRQ 11
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+int 'CS4232 audio DMA 0, 1 or 3' CS4232_DMA 0
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+int 'CS4232 second (duplex) DMA 0, 1 or 3' CS4232_DMA2 3
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+hex 'CS4232 MIDI I/O base 330, 370, 3B0 or 3F0' CS4232_MPU_BASE 330
+fi
+
+if [ "$CONFIG_CS4232" = "y" ]; then
+int 'CS4232 MIDI IRQ 5, 7, 9, 11, 12 or 15' CS4232_MPU_IRQ 9
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+hex 'MAD16 audio I/O base 530, 604, E80 or F40' MAD16_BASE 530
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+int 'MAD16 audio IRQ 7, 9, 10 or 11' MAD16_IRQ 11
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+int 'MAD16 audio DMA 0, 1 or 3' MAD16_DMA 3
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+int 'MAD16 second (duplex) DMA 0, 1 or 3' MAD16_DMA2 0
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+hex 'MAD16 MIDI I/O base 300, 310, 320 or 330 (0 disables)' MAD16_MPU_BASE 330
+fi
+
+if [ "$CONFIG_MAD16" = "y" ]; then
+int 'MAD16 MIDI IRQ 5, 7, 9 or 10' MAD16_MPU_IRQ 9
+fi
+
+if [ "$CONFIG_AUDIO" = "y" ]; then
+int 'Audio DMA buffer size 4096, 16384, 32768 or 65536' DSP_BUFFSIZE 65536
+fi
+#
+$MAKE -C drivers/sound kernelconfig || exit 1

drivers/sound/sequencer.c

@@ -926,6 +926,9 @@ play_event (unsigned char *q)
 
 	  dev = q[2];
 
+	  if (dev < 0 || dev >= num_midis)
+	     break;
+
 	  if (!midi_devs[dev]->putc (dev, q[1]))
 	    {
 	      /*

fs/Config.in

@@ -35,7 +35,7 @@ fi
 tristate 'ISO9660 cdrom filesystem support' CONFIG_ISO9660_FS
 tristate 'OS/2 HPFS filesystem support (read only)' CONFIG_HPFS_FS
 tristate 'System V and Coherent filesystem support' CONFIG_SYSV_FS
-if [ "$CONFIG_EXPERIMENTAL = "y" ]; then
+if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
   tristate 'Amiga FFS filesystem support (EXPERIMENTAL)' CONFIG_AFFS_FS
   if [ "$CONFIG_AFFS_FS" != "n" ]; then
     define_bool CONFIG_AMIGA_PARTITION y
@@ -43,7 +43,7 @@ if [ "$CONFIG_EXPERIMENTAL = "y" ]; then
 fi
 tristate 'UFS filesystem support (read only)' CONFIG_UFS_FS
 if [ "$CONFIG_UFS_FS" != "n" ]; then
-  bool "BSD disklabel (FreeBSD partition tables) support" CONFIG_BSD_DISKLABEL
-  bool "SMD disklabel (Sun partition tables) support" CONFIG_SMD_DISKLABEL
+  bool 'BSD disklabel (FreeBSD partition tables) support' CONFIG_BSD_DISKLABEL
+  bool 'SMD disklabel (Sun partition tables) support' CONFIG_SMD_DISKLABEL
 fi
 endmenu

fs/buffer.c

@@ -1099,7 +1099,7 @@ static struct buffer_head * create_buffers(unsigned long page, unsigned long siz
 static inline void after_unlock_page (struct page * page)
 {
 	if (clear_bit(PG_decr_after, &page->flags))
-		nr_async_pages--;
+		atomic_dec(&nr_async_pages);
 	if (clear_bit(PG_free_after, &page->flags))
 		free_page(page_address(page));
 	if (clear_bit(PG_swap_unlock_after, &page->flags))
@@ -1250,11 +1250,12 @@ void unlock_buffer(struct buffer_head * bh)
 	struct buffer_head *tmp;
 	struct page *page;
 
-	clear_bit(BH_Lock, &bh->b_state);
-	wake_up(&bh->b_wait);
-
-	if (!test_bit(BH_FreeOnIO, &bh->b_state))
+	if (!test_bit(BH_FreeOnIO, &bh->b_state)) {
+		/* This is a normal buffer. */
+		clear_bit(BH_Lock, &bh->b_state);
+		wake_up(&bh->b_wait);
 		return;
+	}
 	/* This is a temporary buffer used for page I/O. */
 	page = mem_map + MAP_NR(bh->b_data);
 	if (!PageLocked(page)) {
@@ -1268,17 +1269,18 @@ void unlock_buffer(struct buffer_head * bh)
 	}
 	/* Async buffer_heads are here only as labels for IO, and get
            thrown away once the IO for this page is complete.  IO is
-           deemed complete once all buffers have been visited
-           (b_count==0) and are now unlocked. */
-	bh->b_count--;
+           deemed complete once all buffers have been unlocked. */
 	if (!test_bit(BH_Uptodate, &bh->b_state))
 		set_bit(PG_error, &page->flags);
+	clear_bit(BH_Lock, &bh->b_state);
+	wake_up(&bh->b_wait);
 	for (tmp = bh; tmp=tmp->b_this_page, tmp!=bh; ) {
-		if (test_bit(BH_Lock, &tmp->b_state) || tmp->b_count)
+		if (test_bit(BH_Lock, &tmp->b_state))
 			return;
 	}
 	/* OK, the async IO on this page is complete. */
-	clear_bit(PG_locked, &page->flags);
+	if (!clear_bit(PG_locked, &page->flags))
+		return;
 	wake_up(&page->wait);
 	free_async_buffers(bh);
 	after_unlock_page(page);

fs/ext2/ioctl.c

@@ -37,11 +37,12 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
 			return err;
 		flags = get_user((int *) arg);
 		/*
-		 * The IMMUTABLE flag can only be changed by the super user
-		 * when the security level is zero.
+		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+		 * the super user when the security level is zero.
 		 */
-		if ((flags & EXT2_IMMUTABLE_FL) ^
-		    (inode->u.ext2_i.i_flags & EXT2_IMMUTABLE_FL)) {
+		if ((flags & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) ^
+		    (inode->u.ext2_i.i_flags &
+		     (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL))) {
 			/* This test looks nicer. Thanks to Pauline Middelink */
 			if (!fsuser() || securelevel > 0)
 				return -EPERM;

fs/locks.c

@@ -82,6 +82,9 @@
  *  be compiled with different options than the kernel itself.
  *  Andy Walker (andy@lysaker.kvaerner.no), May 15, 1996.
  *
+ *  Added a couple of missing wake_up() calls.
+ *  Andy Walker (andy@lysaker.kvaerner.no), May 15, 1996.
+ *
  *  TODO: Do not honour mandatory locks on remote file systems. This matches
  *        the SVR4 semantics and neatly sidesteps a pile of awkward issues that
  *        would otherwise have to be addressed.
@@ -882,9 +885,12 @@ static int posix_lock_file(struct file *filp, struct file_lock *caller,
 			locks_insert_lock(before, left);
 		}
 		right->fl_start = caller->fl_end + 1;
+		wake_up(&right->fl_wait);
 	}
-	if (left)
+	if (left) {
 		left->fl_end = caller->fl_start - 1;
+		wake_up(&left->fl_wait);
+	}
 	return (0);
 }
 

fs/ncpfs/dir.c

@@ -14,6 +14,7 @@
 #include <linux/ncp_fs.h>
 #include <asm/segment.h>
 #include <linux/errno.h>
+#include <linux/locks.h>
 #include "ncplib_kernel.h"
 
 struct ncp_dirent {
@@ -807,6 +808,7 @@ ncp_lookup(struct inode *dir, const char *__name, int len,
 
 	memcpy(name, __name, len);
 	name[len] = 0;
+	lock_super(dir->i_sb);
 	result_info = ncp_find_dir_inode(dir, name);
 
         if (result_info != 0)
@@ -820,6 +822,7 @@ ncp_lookup(struct inode *dir, const char *__name, int len,
                    inode number */
 
                 *result = iget(dir->i_sb, ncp_info_ino(server, result_info));
+		unlock_super(dir->i_sb);
                 iput(dir);
 
                 if (*result == NULL)
@@ -881,6 +884,7 @@ ncp_lookup(struct inode *dir, const char *__name, int len,
 		}
 		if (res != 0)
 		{
+			unlock_super(dir->i_sb);
                         iput(dir);
                         return -ENOENT;
                 }
@@ -891,10 +895,12 @@ ncp_lookup(struct inode *dir, const char *__name, int len,
 
 	if (!(*result = ncp_iget(dir, &finfo)))
 	{
+		unlock_super(dir->i_sb);
 		iput(dir);
 		return -EACCES;
 	}
 
+	unlock_super(dir->i_sb);
 	iput(dir);
 	return 0;
 }
@@ -924,6 +930,7 @@ ncp_create(struct inode *dir, const char *name, int len, int mode,
 	_name[len] = '\0';
 	str_upper(_name);
 
+	lock_super(dir->i_sb);
 	if (ncp_open_create_file_or_subdir(NCP_SERVER(dir),
 					   NCP_ISTRUCT(dir), _name,
 					   OC_MODE_CREATE|OC_MODE_OPEN|
@@ -931,6 +938,7 @@ ncp_create(struct inode *dir, const char *name, int len, int mode,
 					   0, AR_READ|AR_WRITE,
 					   &finfo) != 0)
 	{
+		unlock_super(dir->i_sb);
 		iput(dir);
 		return -EACCES;
 	}
@@ -943,10 +951,12 @@ ncp_create(struct inode *dir, const char *name, int len, int mode,
 	if (!(*result = ncp_iget(dir, &finfo)) < 0)
 	{
 		ncp_close_file(NCP_SERVER(dir), finfo.file_handle);
+		unlock_super(dir->i_sb);
 		iput(dir);
 		return -EINVAL;
 	}
 
+	unlock_super(dir->i_sb);
 	iput(dir);
 	return 0;	
 }

fs/ncpfs/file.c

@@ -15,6 +15,7 @@
 #include <linux/stat.h>
 #include <linux/mm.h>
 #include <linux/ncp_fs.h>
+#include <linux/locks.h>
 #include "ncplib_kernel.h"
 #include <linux/malloc.h>
 
@@ -44,8 +45,10 @@ ncp_make_open(struct inode *i, int right)
 
         DPRINTK("ncp_make_open: dirent->opened = %d\n", finfo->opened);
 
+	lock_super(i->i_sb);
         if (finfo->opened == 0)
 	{
+		finfo->access = -1;
                 /* tries max. rights */
 		if (ncp_open_create_file_or_subdir(NCP_SERVER(i),
 						   NULL, NULL,
@@ -63,12 +66,10 @@ ncp_make_open(struct inode *i, int right)
 		{
 			finfo->access = O_RDONLY;
 		}
-		else
-		{
-			return -EACCES;
-		}
         }
 
+	unlock_super(i->i_sb);
+
         if (   ((right == O_RDONLY) && (   (finfo->access == O_RDONLY)
                                         || (finfo->access == O_RDWR)))
             || ((right == O_WRONLY) && (   (finfo->access == O_WRONLY)

fs/ncpfs/inode.c

@@ -129,7 +129,9 @@ static void
 ncp_put_inode(struct inode *inode)
 {
         struct nw_file_info *finfo = NCP_FINFO(inode);
+	struct super_block *sb = inode->i_sb;
 
+	lock_super(sb);
         if (finfo->opened != 0)
 	{
                 if (ncp_close_file(NCP_SERVER(inode), finfo->file_handle)!=0)
@@ -152,6 +154,7 @@ ncp_put_inode(struct inode *inode)
         }                
 
 	clear_inode(inode);
+	unlock_super(sb);
 }
 
 struct super_block *

include/asm-i386/posix_types.h

@@ -27,6 +27,10 @@ typedef char *		__kernel_caddr_t;
 typedef long long	__kernel_loff_t;
 #endif
 
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+
 #undef	__FD_SET
 #define __FD_SET(fd,fdsetp) \
 		__asm__ __volatile__("btsl %1,%0": \

include/asm-i386/statfs.h

 #ifndef _I386_STATFS_H
 #define _I386_STATFS_H
 
-typedef struct {
-	long    val[2];
-} fsid_t;
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t	fsid_t;
+
+#endif
 
 struct statfs {
 	long f_type;
@@ -13,7 +17,7 @@ struct statfs {
 	long f_bavail;
 	long f_files;
 	long f_ffree;
-	fsid_t f_fsid;
+	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_spare[6];
 };

include/asm-m68k/posix_types.h

@@ -27,6 +27,10 @@ typedef char *		__kernel_caddr_t;
 typedef long long	__kernel_loff_t;
 #endif
 
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+
 #undef	__FD_SET
 #define	__FD_SET(d, set)	((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
 

include/asm-m68k/statfs.h

 #ifndef _M68K_STATFS_H
 #define _M68K_STATFS_H
 
-typedef struct {
-	long    val[2];
-} fsid_t;
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t	fsid_t;
+
+#endif
 
 struct statfs {
 	long f_type;
@@ -13,7 +17,7 @@ struct statfs {
 	long f_bavail;
 	long f_files;
 	long f_ffree;
-	fsid_t f_fsid;
+	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_spare[6];
 };

include/asm-ppc/statfs.h

 #ifndef _PPC_STATFS_H
 #define _PPC_STATFS_H
 
-typedef struct {
-	long    val[2];
-} fsid_t;
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t	fsid_t;
+
+#endif
 
 struct statfs {
 	long f_type;
@@ -13,7 +17,7 @@ struct statfs {
 	long f_bavail;
 	long f_files;
 	long f_ffree;
-	fsid_t f_fsid;
+	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_spare[6];
 };

include/asm-sparc/posix_types.h

@@ -34,6 +34,10 @@ typedef char *                 __kernel_caddr_t;
 typedef long long	__kernel_loff_t;
 #endif
 
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+
 #undef __FD_SET
 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
 {

include/asm-sparc/statfs.h

@@ -2,9 +2,13 @@
 #ifndef _SPARC_STATFS_H
 #define _SPARC_STATFS_H
 
-typedef struct {
-	long    val[2];
-} fsid_t;
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t	fsid_t;
+
+#endif
 
 struct statfs {
 	long f_type;
@@ -14,7 +18,7 @@ struct statfs {
 	long f_bavail;
 	long f_files;
 	long f_ffree;
-	fsid_t f_fsid;
+	__kernel_fsid_t f_fsid;
 	long f_namelen;  /* SunOS ignores this field. */
 	long f_spare[6];
 };

include/linux/interrupt.h

@@ -14,6 +14,7 @@ struct irqaction {
 	struct irqaction *next;
 };
 
+extern unsigned long intr_count;
 
 extern int bh_mask_count[32];
 extern unsigned long bh_active;

include/linux/sched.h

@@ -11,7 +11,6 @@
 
 #include <asm/param.h>	/* for HZ */
 
-extern unsigned long intr_count;
 extern unsigned long event;
 
 #include <linux/binfmts.h>

include/linux/swap.h

@@ -9,6 +9,8 @@
 
 #ifdef __KERNEL__
 
+#include <asm/atomic.h>
+
 #define SWP_USED	1
 #define SWP_WRITEOK	3
 
@@ -32,7 +34,7 @@ struct swap_info_struct {
 
 extern int nr_swap_pages;
 extern int nr_free_pages;
-extern int nr_async_pages;
+extern atomic_t nr_async_pages;
 extern int min_free_pages;
 extern int free_pages_low;
 extern int free_pages_high;

include/linux/sysctl.h

@@ -70,33 +70,41 @@ struct __sysctl_args {
 #define VM_MAXID	5
 
 /* CTL_NET names: */
+#define NET_CORE        1
+#define NET_ETHER       2
+#define NET_802         3
+#define NET_UNIX        4
+#define NET_IPV4        5
+#define NET_IPX         6
+#define NET_ATALK       7
+#define NET_NETROM      8
+#define NET_AX25        9
+#define NET_BRIDGE	10
 
 /* /proc/sys/net/core */
-#define NET_CORE		0x01000000
 
 /* /proc/sys/net/ethernet */
-#define NET_ETHER		0x02000000
 
 /* /proc/sys/net/802 */
-#define NET_802         	0x03000000
 
 /* /proc/sys/net/unix */
-#define NET_UNIX		0x04000000
 
 /* /proc/sys/net/ipv4 */
-#define NET_IPV4		0x05000000
+#define NET_IPV4_ARP_RES_TIME           1
+#define NET_IPV4_ARP_DEAD_RES_TIME      2
+#define NET_IPV4_ARP_MAX_TRIES          3
+#define NET_IPV4_ARP_TIMEOUT            4
+#define NET_IPV4_ARP_CHECK_INTERVAL     5
+#define NET_IPV4_ARP_CONFIRM_INTERVAL   6
+#define NET_IPV4_ARP_CONFIRM_TIMEOUT	7
 
 /* /proc/sys/net/ipx */
-#define NET_IPX			0x06000000
 
 /* /proc/sys/net/appletalk */
-#define NET_ATALK		0x07000000
 
 /* /proc/sys/net/netrom */
-#define NET_NETROM		0x08000000
 
 /* /proc/sys/net/ax25 */
-#define NET_AX25		0x09000000
 
 /* CTL_PROC names: */
 

include/net/ip_masq.h

@@ -85,6 +85,7 @@ extern int ip_masq_init(void);
  *	functions called from ip layer
  */
 extern int ip_fw_masquerade(struct sk_buff **, struct device *);
+extern int ip_fw_masq_icmp(struct sk_buff **, struct device *);
 extern int ip_fw_demasquerade(struct sk_buff **, struct device *);
 
 /*

ipc/msg.c

@@ -14,6 +14,7 @@
 #include <linux/stat.h>
 #include <linux/malloc.h>
 #include <linux/kerneld.h>
+#include <linux/interrupt.h>
 
 #include <asm/segment.h>
 

kernel/exit.c

@@ -15,6 +15,7 @@
 #include <linux/mm.h>
 #include <linux/tty.h>
 #include <linux/malloc.h>
+#include <linux/interrupt.h>
 
 #include <asm/segment.h>
 #include <asm/pgtable.h>

mm/kmalloc.c

@@ -16,6 +16,8 @@
 
 #include <linux/mm.h>
 #include <linux/delay.h>
+#include <linux/interrupt.h>
+
 #include <asm/system.h>
 #include <asm/dma.h>
 

mm/page_alloc.c

@@ -16,6 +16,7 @@
 #include <linux/swap.h>
 #include <linux/fs.h>
 #include <linux/swapctl.h>
+#include <linux/interrupt.h>
 
 #include <asm/dma.h>
 #include <asm/system.h> /* for cli()/sti() */

mm/page_io.c

@@ -84,7 +84,7 @@ void rw_swap_page(int rw, unsigned long entry, char * buf, int wait)
 			set_bit(PG_decr_after, &page->flags);
 			set_bit(PG_swap_unlock_after, &page->flags);
 			page->swap_unlock_entry = entry;
-			nr_async_pages++;
+			atomic_inc(&nr_async_pages);
 		}
 		ll_rw_page(rw,p->swap_device,offset,buf);
 		/*

mm/swap.c

@@ -44,7 +44,7 @@ int free_pages_high = 40;
 
 /* We track the number of pages currently being asynchronously swapped
    out, so that we don't try to swap TOO many pages out at once */
-int nr_async_pages = 0;
+atomic_t nr_async_pages = 0;
 
 /*
  * Constants for the page aging mechanism: the maximum age (actually,

net/bridge/Makefile

@@ -8,7 +8,7 @@
 # Note 2! The CFLAGS definition is now in the main makefile...
 
 O_TARGET := bridge.o
-O_OBJS	 := br.o br_tree.o
+O_OBJS	 := br.o br_tree.o sysctl_net_bridge.o
 M_OBJS   := $(O_TARGET)
 
 include $(TOPDIR)/Rules.make

net/bridge/sysctl_net_bridge.c

+/* -*- linux-c -*-
+ * sysctl_net_bridge.c: sysctl interface to net bridge subsystem.
+ *
+ * Begun June 1, 1996, Mike Shaver.
+ * Added /proc/sys/net/bridge directory entry (empty =) ). [MS]
+ */
+
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+
+ctl_table bridge_table[] = {
+	{0}
+};

net/core/datagram.c

@@ -18,6 +18,7 @@
  *		Darryl Miles	:	Fixed non-blocking SOCK_SEQPACKET.
  *		Linus Torvalds	:	BSD semantic fixes.
  *		Alan Cox	:	Datagram iovec handling
+ *		Darryl Miles	:	Fixed non-blocking SOCK_STREAM.
  *
  */
 
@@ -47,6 +48,7 @@
  * Interrupts off so that no packet arrives before we begin sleeping.
  * Otherwise we might miss our wake up
  */
+
 static inline void wait_for_packet(struct sock * sk)
 {
 	unsigned long flags;
@@ -60,6 +62,16 @@ static inline void wait_for_packet(struct sock * sk)
 	lock_sock(sk);
 }
 
+/*
+ *	Is a socket 'connection oriented' ?
+ */
+ 
+static inline int connection_based(struct sock *sk)
+{
+	if(sk->type==SOCK_SEQPACKET || sk->type==SOCK_STREAM)
+		return 1;
+	return 0;
+}
 
 /*
  *	Get a datagram skbuff, understands the peeking, nonblocking wakeups and possible
@@ -92,7 +104,7 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
 
 		/* Sequenced packets can come disconnected. If so we report the problem */
 		error = -ENOTCONN;
-		if(sk->type==SOCK_SEQPACKET && sk->state!=TCP_ESTABLISHED)
+		if(connection_based(sk) && sk->state!=TCP_ESTABLISHED)
 			goto no_packet;
 
 		/* User doesn't want to wait */
@@ -186,7 +198,7 @@ int datagram_select(struct sock *sk, int sel_type, select_table *wait)
 				return 1;
 			if (sk->shutdown & RCV_SHUTDOWN)
 				return 1;
-			if (sk->type==SOCK_SEQPACKET && sk->state==TCP_CLOSE)
+			if (connection_based(sk) && sk->state==TCP_CLOSE)
 			{
 				/* Connection closed: Wake up */
 				return(1);
@@ -203,7 +215,7 @@ int datagram_select(struct sock *sk, int sel_type, select_table *wait)
 				return 1;
 			if (sk->shutdown & SEND_SHUTDOWN)
 				return 1;
-			if (sk->type==SOCK_SEQPACKET && sk->state==TCP_SYN_SENT)
+			if (connection_based(sk) && sk->state==TCP_SYN_SENT)
 			{
 				/* Connection still in progress */
 				break;

net/ipv4/arp.c

@@ -4,14 +4,15 @@
  *
  * This module implements the Address Resolution Protocol ARP (RFC 826),
  * which is used to convert IP addresses (or in the future maybe other
- * high-level addresses into a low-level hardware address (like an Ethernet
+ * high-level addresses) into a low-level hardware address (like an Ethernet
  * address).
  *
  * FIXME:
  *	Experiment with better retransmit timers
  *	Clean up the timer deletions
- *	If you create a proxy entry set your interface address to the address
- *	and then delete it, proxies may get out of sync with reality - check this
+ *	If you create a proxy entry, set your interface address to the address
+ *	and then delete it, proxies may get out of sync with reality - 
+ *	check this.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -19,11 +20,12 @@
  * 2 of the License, or (at your option) any later version.
  *
  * Fixes:
- *		Alan Cox	:	Removed the ethernet assumptions in Florian's code
- *		Alan Cox	:	Fixed some small errors in the ARP logic
+ *		Alan Cox	:	Removed the ethernet assumptions in 
+ *					Florian's code
+ *		Alan Cox	:	Fixed some small errors in the ARP 
+ *					logic
  *		Alan Cox	:	Allow >4K in /proc
  *		Alan Cox	:	Make ARP add its own protocol entry
- *
  *		Ross Martin     :       Rewrote arp_rcv() and arp_get_info()
  *		Stephen Henson	:	Add AX25 support to arp_get_info()
  *		Alan Cox	:	Drop data when a device is downed.
@@ -46,7 +48,8 @@
  *					during arp_rcv.
  *		Russ Nelson	:	Tidied up a few bits.
  *		Alexey Kuznetsov:	Major changes to caching and behaviour,
- *					eg intelligent arp probing and generation
+ *					eg intelligent arp probing and 
+ *					generation
  *					of host down events.
  *		Alan Cox	:	Missing unlock in device events.
  *		Eckes		:	ARP ioctl control errors.
@@ -54,12 +57,13 @@
  *		Manuel Rodriguez:	Gratuitous ARP.
  *              Jonathan Layes  :       Added arpd support through kerneld 
  *                                      message queue (960314)
+ *		Mike Shaver	:	/proc/sys/net/ipv4/arp_* support
  */
 
 /* RFC1122 Status:
    2.3.2.1 (ARP Cache Validation):
      MUST provide mechanism to flush stale cache entries (OK)
-     SHOULD be able to configure cache timeout (NOT YET)
+     SHOULD be able to configure cache timeout (OK)
      MUST throttle ARP retransmits (OK)
    2.3.2.2 (ARP Packet Queue):
      SHOULD save at least one packet from each "conversation" with an
@@ -121,12 +125,9 @@
  *	and dynamic routing.
  */
 
-#ifndef CONFIG_ARPD
-#define ARP_TIMEOUT		(600*HZ)
-#else
 #define ARP_TIMEOUT		(60*HZ)
-#define ARPD_TIMEOUT		(600*HZ)
-#endif
+
+int sysctl_arp_timeout = ARP_TIMEOUT;
 
 /*
  *	How often is ARP cache checked for expire.
@@ -135,11 +136,13 @@
 
 #define ARP_CHECK_INTERVAL	(60*HZ)
 
+int sysctl_arp_check_interval = ARP_CHECK_INTERVAL;
+
 /*
  *	Soft limit on ARP cache size.
- *	Note that this number should be greater, than
- *	number of simultaneously opened sockets, else
- *	hardware header cache will be not efficient.
+ *	Note that this number should be greater than
+ *	number of simultaneously opened sockets, or else
+ *	hardware header cache will not be efficient.
  */
 
 #if RT_CACHE_DEBUG >= 2
@@ -162,6 +165,8 @@
 
 #define ARP_RES_TIME		(5*HZ)
 
+int sysctl_arp_res_time = ARP_RES_TIME;
+
 /*
  *	The number of times an broadcast arp request is send, until
  *	the host is considered temporarily unreachable.
@@ -169,6 +174,8 @@
 
 #define ARP_MAX_TRIES		3
 
+int sysctl_arp_max_tries = ARP_MAX_TRIES;
+
 /*
  *	The entry is reconfirmed by sending point-to-point ARP
  *	request after ARP_CONFIRM_INTERVAL.
@@ -183,12 +190,16 @@
 
 #define ARP_CONFIRM_INTERVAL	(300*HZ)
 
+int sysctl_arp_confirm_interval = ARP_CONFIRM_INTERVAL;
+
 /*
  *	We wait for answer to unicast request for ARP_CONFIRM_TIMEOUT.
  */
 
 #define ARP_CONFIRM_TIMEOUT	ARP_RES_TIME
 
+int sysctl_arp_confirm_timeout = ARP_CONFIRM_TIMEOUT;
+
 /*
  *	The number of times an unicast arp request is retried, until
  *	the cache entry is considered suspicious.
@@ -198,6 +209,8 @@
 
 #define ARP_MAX_PINGS		1
 
+int sysctl_arp_max_pings = ARP_MAX_PINGS;
+
 /*
  *	When a host is dead, but someone tries to connect it,
  *	we do not remove corresponding cache entry (it would
@@ -211,6 +224,8 @@
 
 #define ARP_DEAD_RES_TIME	(60*HZ)
 
+int sysctl_arp_dead_res_time = ARP_DEAD_RES_TIME;
+
 /*
  *	This structure defines the ARP mapping cache.
  */
@@ -741,7 +756,7 @@ static int arp_force_expire(void)
 				cli();
 				users = arp_count_hhs(entry);
 
-				if (!users && now - entry->last_used > ARP_TIMEOUT)
+				if (!users && now - entry->last_used > sysctl_arp_timeout)
 				{
 					*pentry = entry->next;
 					restore_flags(flags);
@@ -820,7 +835,7 @@ static void arp_check_expire(unsigned long dummy)
 				}
 
 				cli();
-				if (now - entry->last_used > ARP_TIMEOUT
+				if (now - entry->last_used > sysctl_arp_timeout
 				    && !arp_count_hhs(entry))
 				{
 					*pentry = entry->next;
@@ -833,11 +848,11 @@ static void arp_check_expire(unsigned long dummy)
 				}
 				sti();
 				if (entry->last_updated
-				    && now - entry->last_updated > ARP_CONFIRM_INTERVAL
+				    && now - entry->last_updated > sysctl_arp_confirm_interval
 				    && !(entry->flags & ATF_PERM))
 				{
 					struct device * dev = entry->dev;
-					entry->retries = ARP_MAX_TRIES+ARP_MAX_PINGS;
+					entry->retries = sysctl_arp_max_tries+sysctl_arp_max_pings;
 					del_timer(&entry->timer);
 					entry->timer.expires = jiffies + ARP_CONFIRM_TIMEOUT;
 					add_timer(&entry->timer);
@@ -859,7 +874,7 @@ static void arp_check_expire(unsigned long dummy)
 	 *	Set the timer again.
 	 */
 
-	arp_timer.expires = jiffies + ARP_CHECK_INTERVAL;
+	arp_timer.expires = jiffies + sysctl_arp_check_interval;
 	add_timer(&arp_timer);
 }
 
@@ -909,7 +924,7 @@ static void arp_expire_request (unsigned long arg)
 	 */
 	
 	if ((entry->flags & ATF_COM) && entry->last_updated
-	    && jiffies - entry->last_updated <= ARP_CONFIRM_INTERVAL)
+	    && jiffies - entry->last_updated <= sysctl_arp_confirm_interval)
 	{
 		restore_flags(flags);
 		arp_unlock();
@@ -926,10 +941,10 @@ static void arp_expire_request (unsigned long arg)
 		printk("arp_expire_request: %08x timed out\n", entry->ip);
 #endif
 		/* Set new timer. */
-		entry->timer.expires = jiffies + ARP_RES_TIME;
+		entry->timer.expires = jiffies + sysctl_arp_res_time;
 		add_timer(&entry->timer);
 		arp_send(ARPOP_REQUEST, ETH_P_ARP, entry->ip, dev, dev->pa_addr,
-			 entry->retries > ARP_MAX_TRIES ? entry->ha : NULL,
+			 entry->retries > sysctl_arp_max_tries ? entry->ha : NULL,
 			 dev->dev_addr, NULL);
 		arp_unlock();
 		return;
@@ -956,7 +971,7 @@ static void arp_expire_request (unsigned long arg)
 #if RT_CACHE_DEBUG >= 2
 		printk("arp_expire_request: %08x is dead\n", entry->ip);
 #endif
-		entry->retries = ARP_MAX_TRIES;
+		entry->retries = sysctl_arp_max_tries;
 		entry->flags &= ~ATF_COM;
 		arp_invalidate_hhs(entry);
 		restore_flags(flags);
@@ -967,7 +982,7 @@ static void arp_expire_request (unsigned long arg)
 		entry->last_updated = 0;
 		arpd_update(entry);
 
-		entry->timer.expires = jiffies + ARP_DEAD_RES_TIME;
+		entry->timer.expires = jiffies + sysctl_arp_dead_res_time;
 		add_timer(&entry->timer);
 		arp_send(ARPOP_REQUEST, ETH_P_ARP, entry->ip, dev, dev->pa_addr, 
 			 NULL, dev->dev_addr, NULL);
@@ -1317,7 +1332,7 @@ struct arp_table * arp_new_entry(u32 paddr, struct device *dev, struct hh_cache
 			atomic_inc(&hh->hh_refcnt);
 			hh->hh_arp = (void*)entry;
 		}
-		entry->timer.expires = jiffies + ARP_RES_TIME;
+		entry->timer.expires = jiffies + sysctl_arp_res_time;
 
 		if (skb != NULL)
 		{
@@ -1331,7 +1346,7 @@ struct arp_table * arp_new_entry(u32 paddr, struct device *dev, struct hh_cache
 			entry->next = arp_tables[hash];
 			arp_tables[hash] = entry;
 			add_timer(&entry->timer);
-			entry->retries = ARP_MAX_TRIES;
+			entry->retries = sysctl_arp_max_tries;
 #ifdef CONFIG_ARPD
 			if (!arpd_not_running)
 				arpd_lookup(paddr, dev);
@@ -1573,8 +1588,8 @@ static void arp_run_bh()
 				entry->next = arp_tables[hash];
 				arp_tables[hash] = entry;
 				restore_flags(flags);
-				entry->timer.expires = jiffies + ARP_RES_TIME;
-				entry->retries = ARP_MAX_TRIES;
+				entry->timer.expires = jiffies + sysctl_arp_res_time;
+				entry->retries = sysctl_arp_max_tries;
 				entry->last_used = jiffies;
 				if (!(entry->flags & ATF_COM))
 				{

net/ipv4/icmp.c

@@ -16,18 +16,26 @@
  *	Fixes:
  *		Mike Shaver	:	RFC1122 checks.
  *		Alan Cox	:	Multicast ping reply as self.
- *		Alan Cox	:	Fix atomicity lockup in ip_build_xmit call
- *		Alan Cox	:	Added 216,128 byte paths to the MTU code.
+ *		Alan Cox	:	Fix atomicity lockup in ip_build_xmit 
+ *					call.
+ *		Alan Cox	:	Added 216,128 byte paths to the MTU 
+ *					code.
  *		Martin Mares	:	RFC1812 checks.
- *		Martin Mares	:	Can be configured to follow redirects if acting
- *					as a router _without_ a routing protocol (RFC 1812).
- *		Martin Mares	:	Echo requests may be configured to be ignored (RFC 1812).
- *		Martin Mares	:	Limitation of ICMP error message transmit rate (RFC 1812).
- *		Martin Mares	:	TOS and Precedence set correctly (RFC 1812).
- *		Martin Mares	:	Now copying as much data from the original packet
- *					as we can without exceeding 576 bytes (RFC 1812).
+ *		Martin Mares	:	Can be configured to follow redirects 
+ *					if acting as a router _without_ a
+ *					routing protocol (RFC 1812).
+ *		Martin Mares	:	Echo requests may be configured to 
+ *					be ignored (RFC 1812).
+ *		Martin Mares	:	Limitation of ICMP error message 
+ *					transmit rate (RFC 1812).
+ *		Martin Mares	:	TOS and Precedence set correctly 
+ *					(RFC 1812).
+ *		Martin Mares	:	Now copying as much data from the 
+ *					original packet as we can without
+ *					exceeding 576 bytes (RFC 1812).
  *	Willy Konynenberg	:	Transparent proxying support.
- *
+ *		Keith Owens	:	RFC1191 correction for 4.2BSD based 
+ *					path MTU bug.
  *
  *
  * RFC1122 (Host Requirements -- Comm. Layer) Status:
@@ -81,7 +89,8 @@
  *   MAY discard broadcast REQUESTs.  (OK, but see source for inconsistency)
  *   MUST reply using same source address as the request was sent to. (OK)
  *   MUST reverse source route, as per ECHO (NOT YET)
- *   MUST pass REPLYs to transport/user layer (requires RAW, just like ECHO) (OK)
+ *   MUST pass REPLYs to transport/user layer (requires RAW, just like 
+ *	ECHO) (OK)
  *   MUST update clock for timestamp at least 15 times/sec (OK)
  *   MUST be "correct within a few minutes" (OK)
  * 3.2.2.9 (Address Mask Request/Reply)
@@ -108,10 +117,11 @@
  *   MUST use one of addresses for the interface the orig. packet arrived as
  *     source address (OK)
  *  4.3.2.5 (TOS and Precedence)
- *   SHOULD leave TOS set to the same value unless the packet would be discarded
- *     for that reason (OK)
+ *   SHOULD leave TOS set to the same value unless the packet would be 
+ *     discarded for that reason (OK)
  *   MUST use TOS=0 if not possible to leave original value (OK)
- *   MUST leave IP Precedence for Source Quench messages (OK -- not sent at all)
+ *   MUST leave IP Precedence for Source Quench messages (OK -- not sent 
+ *	at all)
  *   SHOULD use IP Precedence = 6 (Internetwork Control) or 7 (Network Control)
  *     for all other error messages (OK, we use 6)
  *   MAY allow configuration of IP Precedence (OK -- not done)
@@ -137,7 +147,8 @@
  *     is enabled on the interface (OK -- ignores)
  *  4.3.3.3 (Source Quench)
  *   SHOULD NOT originate SQ messages (OK)
- *   MUST be able to limit SQ rate if originates them (OK as we don't send them)
+ *   MUST be able to limit SQ rate if originates them (OK as we don't 
+ *	send them)
  *   MAY ignore SQ messages it receives (OK -- we don't)
  *  4.3.3.4 (Time Exceeded)
  *   Requirements dealt with at IP (generating TIME_EXCEEDED).
@@ -166,16 +177,19 @@
  *   MUST reply using same source address as the request was sent to. (OK)
  *   MUST use reversed Source Route if possible (NOT YET)
  *   SHOULD update Record Route / Timestamp options (??)
- *   MUST pass REPLYs to transport/user layer (requires RAW, just like ECHO) (OK)
+ *   MUST pass REPLYs to transport/user layer (requires RAW, just like 
+ *	ECHO) (OK)
  *   MUST update clock for timestamp at least 16 times/sec (OK)
  *   MUST be "correct within a few minutes" (OK)
  * 4.3.3.9 (Address Mask Request/Reply)
- *   MUST have support for receiving AMRq and responding with AMRe (OK, but only as a
- *     compile-time option)
- *   SHOULD have option for each interface for AMRe's, MUST default to NO (NOT YET)
+ *   MUST have support for receiving AMRq and responding with AMRe (OK, 
+ *	but only as a compile-time option)
+ *   SHOULD have option for each interface for AMRe's, MUST default to 
+ *	NO (NOT YET)
  *   MUST NOT reply to AMRq before knows the correct AM (OK)
- *   MUST NOT respond to AMRq with source address 0.0.0.0 on physical interfaces
- *     having multiple logical i-faces with different masks (NOT YET)
+ *   MUST NOT respond to AMRq with source address 0.0.0.0 on physical
+ *    	interfaces having multiple logical i-faces with different masks
+ *	(NOT YET)
  *   SHOULD examine all AMRe's it receives and check them (NOT YET)
  *   SHOULD log invalid AMRe's (AM+sender) (NOT YET)
  *   MUST NOT use contents of AMRe to determine correct AM (OK)
@@ -192,8 +206,8 @@
  *   SHOULD NOT generate Host Isolated codes (OK)
  *   SHOULD use Communication Administratively Prohibited when administratively
  *     filtering packets (NOT YET -- bug-to-bug compatibility)
- *   MAY include config option for not generating the above and silently discard
- *     the packets instead (OK)
+ *   MAY include config option for not generating the above and silently
+ *	discard the packets instead (OK)
  *   MAY include config option for not generating Precedence Violation and
  *     Precedence Cutoff messages (OK as we don't generate them at all)
  *   MUST use Host Unreachable or Dest. Host Unknown codes whenever other hosts
@@ -344,7 +358,7 @@ struct socket icmp_socket;
 /*
  *	Send an ICMP frame.
  */
- 
+
 
 /*
  *	Initialize the transmit rate limitation mechanism.
@@ -370,7 +384,8 @@ static void xrlim_init(void)
  *	Check transmit rate limitation for given message.
  *
  *	RFC 1812: 4.3.2.8 SHOULD be able to limit error message rate
- *			  SHOULD allow setting of rate limits (we allow in the source)
+ *			  SHOULD allow setting of rate limits (we allow 
+ *			  in the source)
  */
 
 static int xrlim_allow(int type, __u32 addr)
@@ -385,7 +400,8 @@ static int xrlim_allow(int type, __u32 addr)
 	if (!r)
 		return 1;
 
-	for (c = r->cache; c < &r->cache[XRLIM_CACHE_SIZE]; c++)	/* Cache lookup */
+	for (c = r->cache; c < &r->cache[XRLIM_CACHE_SIZE]; c++)	
+	  /* Cache lookup */
 		if (c->daddr == addr)
 			break;
 
@@ -645,6 +661,22 @@ static void icmp_unreach(struct icmphdr *icmph, struct sk_buff *skb, struct devi
 				unsigned short old_mtu = ntohs(iph->tot_len);
 				unsigned short new_mtu = ntohs(icmph->un.echo.sequence);
 
+				/*
+				 * RFC1191 5.  4.2BSD based router can return incorrect
+				 * Total Length.  If current mtu is unknown or old_mtu
+				 * is not less than current mtu, reduce old_mtu by 4 times
+				 * the header length.
+				 */
+
+				if (skb->sk == NULL /* can this happen? */
+					|| skb->sk->ip_route_cache == NULL
+					|| skb->sk->ip_route_cache->rt_mtu <= old_mtu)
+				{
+					NETDEBUG(printk(KERN_INFO "4.2BSD based fragmenting router between here and %s, mtu corrected from %d", in_ntoa(iph->daddr), old_mtu));
+					old_mtu -= 4 * iph->ihl;
+					NETDEBUG(printk(" to %d\n", old_mtu));
+				}
+
 				if (new_mtu < 68 || new_mtu >= old_mtu)
 				{
 					/*

net/ipv4/ip_forward.c

@@ -8,8 +8,10 @@
  * Authors:	see ip.c
  *
  * Fixes:
- *		Many		:	Split from ip.c , see ip_input.c for history.
- *		Dave Gregorich	:	NULL ip_rt_put fix for multicast routing.
+ *		Many		:	Split from ip.c , see ip_input.c for 
+ *					history.
+ *		Dave Gregorich	:	NULL ip_rt_put fix for multicast 
+ *					routing.
  *		Jos Vos		:	Add call_out_firewall before sending,
  *					use output device for accounting.
  *		Jos Vos		:	Call forward firewall after routing
@@ -225,6 +227,23 @@ int ip_forward(struct sk_buff *skb, struct device *dev, int is_frag,
 #ifdef CONFIG_FIREWALL
 	if(!(is_frag&IPFWD_MASQUERADED))
 	{
+#ifdef CONFIG_IP_MASQUERADE
+		/* 
+		 *	Check that any ICMP packets are not for a 
+		 *	masqueraded connection.  If so rewrite them
+		 *	and skip the firewall checks
+		 */
+		if (iph->protocol == IPPROTO_ICMP)
+		{
+			if ((fw_res = ip_fw_masq_icmp(&skb, dev2)) < 0)
+				/* Problem - ie bad checksum */
+				return -1;
+
+			if (fw_res)
+				/* ICMP matched - skip firewall */
+				goto skip_call_fw_firewall;
+		}
+#endif
 		fw_res=call_fw_firewall(PF_INET, dev2, iph, NULL);
 		switch (fw_res) {
 		case FW_ACCEPT:
@@ -236,6 +255,10 @@ int ip_forward(struct sk_buff *skb, struct device *dev, int is_frag,
 		default:
 			return -1;
 		}
+
+#ifdef CONFIG_IP_MASQUERADE
+		skip_call_fw_firewall:
+#endif		
 	}
 #endif
 

net/ipv4/ip_masq.c

@@ -568,8 +568,108 @@ int ip_fw_masquerade(struct sk_buff **skb_ptr, struct device *dev)
 	return 0;
  }
 
+
+/*
+ *	Handle ICMP messages in forward direction.
+ *	Find any that might be relevant, check against existing connections,
+ *	forward to masqueraded host if relevant.
+ *	Currently handles error types - unreachable, quench, ttl exceeded
+ */
+
+int ip_fw_masq_icmp(struct sk_buff **skb_p, struct device *dev)
+{
+        struct sk_buff 	*skb   = *skb_p;
+ 	struct iphdr	*iph   = skb->h.iph;
+	struct icmphdr  *icmph = (struct icmphdr *)((char *)iph + (iph->ihl<<2));
+	struct iphdr    *ciph;	/* The ip header contained within the ICMP */
+	__u16	        *pptr;	/* port numbers from TCP/UDP contained header */
+	struct ip_masq	*ms;
+	unsigned short   len   = ntohs(iph->tot_len) - (iph->ihl * 4);
+
+#ifdef DEBUG_CONFIG_IP_MASQUERADE
+ 	printk("Incoming forward ICMP (%d) %lX -> %lX\n",
+	        icmph->type,
+ 		ntohl(iph->saddr), ntohl(iph->daddr));
+#endif
+
+	/* 
+	 * Work through seeing if this is for us.
+	 * These checks are supposed to be in an order that
+	 * means easy things are checked first to speed up
+	 * processing.... however this means that some
+	 * packets will manage to get a long way down this
+	 * stack and then be rejected, but thats life
+	 */
+	if ((icmph->type != ICMP_DEST_UNREACH) &&
+	    (icmph->type != ICMP_SOURCE_QUENCH) &&
+	    (icmph->type != ICMP_TIME_EXCEEDED))
+		return 0;
+
+	/* Now find the contained IP header */
+	ciph = (struct iphdr *) (icmph + 1);
+
+	/* We are only interested ICMPs generated from TCP or UDP packets */
+	if ((ciph->protocol != IPPROTO_UDP) && (ciph->protocol != IPPROTO_TCP))
+		return 0;
+
+	/* 
+	 * Find the ports involved - this packet was 
+	 * incoming so the ports are right way round
+	 * (but reversed relative to outer IP header!)
+	 */
+	pptr = (__u16 *)&(((char *)ciph)[ciph->ihl*4]);
+	if (ntohs(pptr[1]) < PORT_MASQ_BEGIN ||
+ 	    ntohs(pptr[1]) > PORT_MASQ_END)
+ 		return 0;
+
+	/* Ensure the checksum is correct */
+	if (ip_compute_csum((unsigned char *) icmph, len)) 
+	{
+		/* Failed checksum! */
+		printk(KERN_INFO "MASQ: forward ICMP: failed checksum from %s!\n", 
+		       in_ntoa(iph->saddr));
+		return(-1);
+	}
+
+#ifdef DEBUG_CONFIG_IP_MASQUERADE
+ 	printk("Handling forward ICMP for %lX:%X -> %lX:%X\n",
+	       ntohl(ciph->saddr), ntohs(pptr[0]),
+	       ntohl(ciph->daddr), ntohs(pptr[1]));
+#endif
+
+	/* This is pretty much what ip_masq_in_get() does */
+	ms = ip_masq_in_get_2(ciph->protocol, ciph->saddr, pptr[0], ciph->daddr, pptr[1]);
+
+	if (ms == NULL)
+		return 0;
+
+	/* Now we do real damage to this packet...! */
+	/* First change the source IP address, and recalc checksum */
+	iph->saddr = ms->maddr;
+	ip_send_check(iph);
+	
+	/* Now change the *dest* address in the contained IP */
+	ciph->daddr = ms->maddr;
+	ip_send_check(ciph);
+	
+	/* the TCP/UDP dest port - cannot redo check */
+	pptr[1] = ms->mport;
+
+	/* And finally the ICMP checksum */
+	icmph->checksum = 0;
+	icmph->checksum = ip_compute_csum((unsigned char *) icmph, len);
+
+#ifdef DEBUG_CONFIG_IP_MASQUERADE
+ 	printk("Rewrote forward ICMP to %lX:%X -> %lX:%X\n",
+	       ntohl(ciph->saddr), ntohs(pptr[0]),
+	       ntohl(ciph->daddr), ntohs(pptr[1]));
+#endif
+
+	return 1;
+}
+
 /*
- *	Handle ICMP messages.
+ *	Handle ICMP messages in reverse (demasquerade) direction.
  *	Find any that might be relevant, check against existing connections,
  *	forward to masqueraded host if relevant.
  *	Currently handles error types - unreachable, quench, ttl exceeded
@@ -586,7 +686,7 @@ int ip_fw_demasq_icmp(struct sk_buff **skb_p, struct device *dev)
 	unsigned short   len   = ntohs(iph->tot_len) - (iph->ihl * 4);
 
 #ifdef DEBUG_CONFIG_IP_MASQUERADE
- 	printk("Incoming ICMP (%d) %lX -> %lX\n",
+ 	printk("Incoming reverse ICMP (%d) %lX -> %lX\n",
 	        icmph->type,
  		ntohl(iph->saddr), ntohl(iph->daddr));
 #endif
@@ -616,12 +716,13 @@ int ip_fw_demasq_icmp(struct sk_buff **skb_p, struct device *dev)
 	if (ip_compute_csum((unsigned char *) icmph, len)) 
 	{
 		/* Failed checksum! */
-		printk(KERN_INFO "MASQ: ICMP: failed checksum from %s!\n", in_ntoa(iph->saddr));
+		printk(KERN_INFO "MASQ: reverse ICMP: failed checksum from %s!\n", 
+		       in_ntoa(iph->saddr));
 		return(-1);
 	}
 
 #ifdef DEBUG_CONFIG_IP_MASQUERADE
- 	printk("Handling ICMP for %lX:%X -> %lX:%X\n",
+ 	printk("Handling reverse ICMP for %lX:%X -> %lX:%X\n",
 	       ntohl(ciph->saddr), ntohs(pptr[0]),
 	       ntohl(ciph->daddr), ntohs(pptr[1]));
 #endif
@@ -649,7 +750,7 @@ int ip_fw_demasq_icmp(struct sk_buff **skb_p, struct device *dev)
 	icmph->checksum = ip_compute_csum((unsigned char *) icmph, len);
 
 #ifdef DEBUG_CONFIG_IP_MASQUERADE
- 	printk("Rewrote ICMP to %lX:%X -> %lX:%X\n",
+ 	printk("Rewrote reverse ICMP to %lX:%X -> %lX:%X\n",
 	       ntohl(ciph->saddr), ntohs(pptr[0]),
 	       ntohl(ciph->daddr), ntohs(pptr[1]));
 #endif

net/ipv4/sysctl_net_ipv4.c

@@ -8,6 +8,31 @@
 #include <linux/mm.h>
 #include <linux/sysctl.h>
 
+/* From arp.c */
+extern int sysctl_arp_res_time;
+extern int sysctl_arp_dead_res_time;
+extern int sysctl_arp_max_tries;
+extern int sysctl_arp_timeout;
+extern int sysctl_arp_check_interval;
+extern int sysctl_arp_confirm_interval;
+extern int sysctl_arp_confirm_timeout;
+
 ctl_table ipv4_table[] = {
+        {NET_IPV4_ARP_RES_TIME, "arp_res_time",
+         &sysctl_arp_res_time, sizeof(int), 0644, NULL, &proc_dointvec},
+        {NET_IPV4_ARP_DEAD_RES_TIME, "arp_dead_res_time",
+         &sysctl_arp_dead_res_time, sizeof(int), 0644, NULL, &proc_dointvec},
+        {NET_IPV4_ARP_MAX_TRIES, "arp_max_tries",
+         &sysctl_arp_max_tries, sizeof(int), 0644, NULL, &proc_dointvec},
+        {NET_IPV4_ARP_TIMEOUT, "arp_timeout",
+         &sysctl_arp_timeout, sizeof(int), 0644, NULL, &proc_dointvec},
+        {NET_IPV4_ARP_CHECK_INTERVAL, "arp_check_interval",
+         &sysctl_arp_check_interval, sizeof(int), 0644, NULL, &proc_dointvec},
+        {NET_IPV4_ARP_CONFIRM_INTERVAL, "arp_confirm_interval",
+         &sysctl_arp_confirm_interval, sizeof(int), 0644, NULL,
+         &proc_dointvec},
+        {NET_IPV4_ARP_CONFIRM_TIMEOUT, "arp_confirm_timeout",
+         &sysctl_arp_confirm_timeout, sizeof(int), 0644, NULL,
+         &proc_dointvec},
 	{0}
 };

net/ipv4/tcp_input.c

@@ -933,7 +933,7 @@ static int tcp_ack(struct sock *sk, struct tcphdr *th, u32 ack, int len)
 	/*
 	 * Maybe we can take some stuff off of the write queue,
 	 * and put it onto the xmit queue.
-	 * FIXME: (?) There is bizzare case being tested here, to check if
+	 * FIXME: (?) There is bizarre case being tested here, to check if
 	 * the data at the head of the queue ends before the start of
 	 * the sequence we already ACKed. This does not appear to be
 	 * a case that can actually occur. Why are we testing it?
@@ -1679,7 +1679,7 @@ int tcp_rcv(struct sk_buff *skb, struct device *dev, struct options *opt,
 	struct sock *sk;
 	int syn_ok=0;
 #ifdef CONFIG_IP_TRANSPARENT_PROXY
-	int r;
+	int r=0;
 #endif
 
 	/*

net/ipv4/tcp_timer.c

@@ -61,7 +61,7 @@ void tcp_reset_xmit_timer(struct sock *sk, int why, unsigned long when)
 
 	if (sk->retransmit_timer.expires < jiffies) {
 		/* We can get here if we reset the timer on an event
-		 * that could not fire because the interupts where disabled.
+		 * that could not fire because the interrupts were disabled.
 		 * make sure it happens soon.
 		 */
 		sk->retransmit_timer.expires = jiffies+2;

net/netlink.c

@@ -63,6 +63,21 @@ int netlink_donothing(struct sk_buff *skb)
 	return -EINVAL;
 }
 
+static int netlink_select(struct inode *inode, struct file *file, int sel_type, select_table * wait)
+{
+	unsigned int minor = MINOR(inode->i_rdev);
+	switch (sel_type) {
+	case SEL_IN:
+		if (skb_peek(&skb_queue_rd[minor])!=NULL)
+			return 1;
+		select_wait(&read_space_wait[minor], wait);
+		break;
+	case SEL_OUT:
+		return 1;
+	}
+	return 0;
+}
+
 /*
  *	Write a message to the kernel side of a communication link
  */
@@ -161,7 +176,7 @@ static struct file_operations netlink_fops = {
 	netlink_read,
 	netlink_write,
 	NULL,		/* netlink_readdir */
-	NULL,		/* netlink_select */
+	netlink_select,
 	netlink_ioctl,
 	NULL,		/* netlink_mmap */
 	netlink_open,

net/netsyms.c

@@ -31,6 +31,10 @@
 #include <linux/net_alias.h>
 #endif
 
+#ifdef CONFIG_NETLINK
+#include <net/netlink.h>
+#endif
+
 #ifdef CONFIG_NET_ALIAS
 #include <linux/net_alias.h>
 #endif
@@ -173,6 +177,12 @@ static struct symbol_table net_syms = {
 	X(arp_query),
 #endif  /* CONFIG_INET */
 
+#ifdef CONFIG_NETLINK
+	X(netlink_attach),
+	X(netlink_detach),
+	X(netlink_post),
+#endif /* CONFIG_NETLINK */
+	
 #include <linux/symtab_end.h>
 };
 

net/sysctl_net.c

@@ -3,6 +3,13 @@
  *
  * Begun April 1, 1996, Mike Shaver.
  * Added /proc/sys/net directories for each protocol family. [MS]
+ *
+ * $Log: sysctl_net.c,v $
+ * Revision 1.2  1996/05/08  20:24:40  shaver
+ * Added bits for NET_BRIDGE and the NET_IPV4_ARP stuff and
+ * NET_IPV4_IP_FORWARD.
+ *
+ *
  */
 
 #include <linux/config.h>
@@ -35,6 +42,10 @@ extern ctl_table core_table[], unix_table[];
 extern ctl_table ether_table[], e802_table[];
 #endif
 
+#ifdef CONFIG_BRIDGE
+extern ctl_table bridge_table[];
+#endif
+
 ctl_table net_table[] = {
 	{NET_CORE,   "core",      NULL, 0, 0555, core_table},      
         {NET_UNIX,   "unix",      NULL, 0, 0555, unix_table},
@@ -56,6 +67,9 @@ ctl_table net_table[] = {
 #endif
 #ifdef CONFIG_AX25
 	{NET_AX25,   "ax25",      NULL, 0, 0555, ax25_table},
+#endif
+#ifdef CONFIG_BRIDGE
+        {NET_BRIDGE, "bridge",    NULL, 0, 0555, bridge_table},
 #endif
 	{0}
 };

scripts/Menuconfig

@@ -627,7 +627,7 @@ function parse_config_files () {
 	#
 	for i in MCmenu*
 	do
-		source $i
+		source ./$i
 	done
 
 	rm -f MCmenu*
@@ -646,9 +646,30 @@ function activate_menu () {
 		comment_ctr=0		#So comment lines get unique tags
 
 		$1 "$default"		#Create the lxdialog menu & functions
-		. MCradiolists		#Source the menu's functions
 
-		. MCmenu 2>MCdialog.out	#Activate the lxdialog menu
+		if [ "$?" != "0" ]
+		then
+			clear
+			cat <<EOM
+
+Menuconfig has encountered a possible error in one of the kernel's
+configuration files and is unable to continue.
+
+Please report this to the author <roadcapw@cfw.com>.  You may also
+send a problem report to linux-kernel@vger.rutgers.edu or post a
+message to the linux.dev.kernel news group.
+
+Please indicate the kernel version you are trying to configure and
+which menu you were trying to enter when this error occured.
+
+EOM
+			cleanup
+			exit 1
+		fi
+
+		. ./MCradiolists		#Source the menu's functions
+
+		. ./MCmenu 2>MCdialog.out	#Activate the lxdialog menu
 		ret=$?
 
 		read selection <MCdialog.out
@@ -678,6 +699,32 @@ function activate_menu () {
 		255|1)
 			break
 			;;
+		139)
+			stty sane
+			clear
+			cat <<EOM
+
+There seems to be a problem with the lxdialog companion utility which is
+built prior to running Menuconfig.  Usually this is an indicator that you
+have upgraded/downgraded your ncurses libraries and did not remove the 
+old ncurses header file(s) in /usr/include or /usr/include/ncurses.
+
+It is VERY important that you have only one set of ncurses header files
+and that those files are properly version matched to the ncurses libraries 
+installed on your machine.
+
+You may also need to rebuild lxdialog.  This can be done by moving to
+the /usr/src/linux/scripts/lxdialog directory and issuing the 
+"make clean all" command.
+
+If you have verified that your ncurses install is correct, you may email
+the author <roadcapw@cfw.com> or post a message on the linux.dev.kernel
+news group for additional assistance. 
+
+EOM
+			cleanup
+			exit 139
+			;;
 		esac
 	done
 }
@@ -719,7 +766,7 @@ last retrieved.  Leave blank to abort."\
 			else
 				echo -ne "\007"
 				$DIALOG	--backtitle "$backtitle" \
-					--infobox "File does not exit!"  3 38
+					--infobox "File does not exist!"  3 38
 				sleep 2
 			fi
 		else
@@ -815,7 +862,7 @@ function load_config_file () {
 	! /# .* is not set.*/ { print }
 	' $1 >.tmpconfig
 
-	source .tmpconfig
+	source ./.tmpconfig
 	rm -f .tmpconfig
 }