+
LINUX ALLOCATED DEVICES
Maintained by H. Peter Anvin <hpa@zytor.com>
- Last revised: December 21, 1999
+ Last revised: March 23, 2000
This list is the Linux Device List, the official registry of allocated
device numbers and /dev directory nodes for the Linux operating
platform only. Allocations marked (68k/Atari) apply to Linux/68k on
the Atari platform only.
+The symbol {2.6} means the allocation is obsolete and scheduled for
+removal once kernel version 2.6 (or equivalent) is released.
+
This document is in the public domain. The author requests, however,
that semantically altered versions are not distributed without
permission of the author, assuming the author can be contacted without
9 = /dev/pc110pad IBM PC-110 digitizer pad
10 = /dev/adbmouse Apple Desktop Bus mouse
11 = /dev/vrtpanel Vr41xx embedded touch panel
+ 13 = /dev/vpcmouse Connectix Virtual PC Mouse
128 = /dev/beep Fancy beep device
- 129 = /dev/modreq Kernel module load request
+ 129 = /dev/modreq Kernel module load request {2.6}
130 = /dev/watchdog Watchdog timer port
131 = /dev/temperature Machine internal temperature
132 = /dev/hwtrap Hardware fault trap
142 = /dev/msr x86 model-specific registers
143 = /dev/pciconf PCI configuration space
144 = /dev/nvram Non-volatile configuration RAM
- 145 = /dev/hfmodem Soundcard shortwave modem control
+ 145 = /dev/hfmodem Soundcard shortwave modem control {2.6}
146 = /dev/graphics Linux/SGI graphics device
147 = /dev/opengl Linux/SGI OpenGL pipe
148 = /dev/gfx Linux/SGI graphics effects device
178 = /dev/jsflash JavaStation OS flash SIMM
179 = /dev/xsvc High-speed shared-mem/semaphore service
180 = /dev/vrbuttons Vr41xx button input device
+ 181 = /dev/toshiba Toshiba laptop SMM support
+ 182 = /dev/perfctr Performance-monitoring counters
+ 183 = /dev/intel_rng Intel i8x0 random number generator
+ 184 = /dev/cpu/microcode CPU microcode update interface
240-255 Reserved for local use
11 char Raw keyboard device
The device names specified are proposed -- if there
are "standard" names for these devices, please let me know.
- block MSCDEX CD-ROM callback support
+ block MSCDEX CD-ROM callback support {2.6}
0 = /dev/dos_cd0 First MSCDEX CD-ROM
1 = /dev/dos_cd1 Second MSCDEX CD-ROM
...
2 = /dev/midi00 First MIDI port
3 = /dev/dsp Digital audio
4 = /dev/audio Sun-compatible digital audio
- 6 = /dev/sndstat Sound card status information
+ 6 = /dev/sndstat Sound card status information {2.6}
7 = /dev/audioctl SPARC audio control device
8 = /dev/sequencer2 Sequencer -- alternate device
16 = /dev/mixer1 Second soundcard mixer control
33 = /dev/patmgr1 Sequencer patch manager
34 = /dev/midi02 Third MIDI port
50 = /dev/midi03 Fourth MIDI port
- block BIOS harddrive callback support
+ block BIOS harddrive callback support {2.6}
0 = /dev/dos_hda First BIOS harddrive whole disk
64 = /dev/dos_hdb Second BIOS harddrive whole disk
128 = /dev/dos_hdc Third BIOS harddrive whole disk
2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
- 26 char Quanta WinVision frame grabber
+ 26 char Quanta WinVision frame grabber {2.6}
0 = /dev/wvisfgrab Quanta WinVision frame grabber
block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
...
block Reserved for Linux/AP+
- 40 char Matrox Meteor frame grabber
+ 40 char Matrox Meteor frame grabber {2.6}
0 = /dev/mmetfgrab Matrox Meteor frame grabber
block Syquest EZ135 parallel port removable drive
0 = /dev/eza Parallel EZ135 drive, whole disk
disks (see major number 3) except that the limit on
partitions is 15.
- 83 char Teletext/videotext interfaces
+ 83 char Teletext/videotext interfaces {2.6}
0 = /dev/vtx Teletext decoder
16 = /dev/vttuner TV tuner on teletext interface
disks (see major number 3) except that the limit on
partitions is 15.
- 93 char IBM Smart Capture Card frame grabber
+ 93 char IBM Smart Capture Card frame grabber {2.6}
0 = /dev/iscc0 First Smart Capture Card
1 = /dev/iscc1 Second Smart Capture Card
...
...
240 = /dev/nftlp 16th NTFL layer
- 94 char miroVIDEO DC10/30 capture/playback device
+ 94 char miroVIDEO DC10/30 capture/playback device {2.6}
0 = /dev/dcxx0 First capture card
1 = /dev/dcxx1 Second capture card
...
These devices support the same API as the generic SCSI
devices.
+ block Packet writing for CD/DVD devices
+ 0 = /dev/pktcdvd0 First packet-writing module
+ 1 = /dev/pktcdvd1 Second packet-writing module
+ ...
+
98 char Control and Measurement Device (comedi)
0 = /dev/comedi0 First comedi device
1 = /dev/comedi1 Second comedi device
See http://stm.lbl.gov/comedi or http://www.llp.fu-berlin.de/.
+ block User-mode virtual block device
+ 0 = /dev/ubd0 First user-mode block device
+ 1 = /dev/ubd1 Second user-mode block device
+ ...
+
+ This device is used by the user-mode virtual kernel port.
+
99 char Raw parallel ports
0 = /dev/parport0 First parallel port
1 = /dev/parport1 Second parallel port
...
-100 char POTS (analogue telephone) A/B port
+100 char POTS (analogue telephone) A/B port {2.6}
0 = /dev/phone0 First telephone port
1 = /dev/phone1 Second telephone port
...
+ The names have been reallocated to Telephony For
+ Linux, major 159. All use of major 100 should be
+ considered legacy and deprecated.
+
101 char Motorola DSP 56xxx board
0 = /dev/mdspstat Status information
1 = /dev/mdsp1 First DSP board I/O controls
...
16 = /dev/mdsp16 16th DSP board I/O controls
-102 char Philips SAA5249 Teletext signal decoder
+102 char Philips SAA5249 Teletext signal decoder {2.6}
0 = /dev/tlk0 First Teletext decoder
1 = /dev/tlk1 Second Teletext decoder
2 = /dev/tlk2 Third Teletext decoder
1 = /dev/srnd1 Second miroMEDIA Surround board
...
-111 char Philips SAA7146-based audio/video card
+111 char Philips SAA7146-based audio/video card {2.6}
0 = /dev/av0 First A/V card
1 = /dev/av1 Second A/V card
...
Plays music using IBM BASIC style strings.
-116 char Advanced Linux System Driver (ALSA)
+116 char Advanced Linux Sound Driver (ALSA)
117 char COSA/SRP synchronous serial card
0 = /dev/cosa0c0 1st board, 1st channel
1 = /dev/gfax1 GammaLink channel 1
...
-159 char Quicknet Technologies Internet PhoneJack/LineJack
- 0 = /dev/ixj0 First device
- 1 = /dev/ixj1 Second device
+159 char Telephony for Linux
+ 0 = /dev/phone0 First telephony device
+ 1 = /dev/phone1 Second telephony device
...
160 char General Purpose Instrument Bus (GPIB)
48 = /dev/usb/scanner0 First USB scanner
...
63 = /dev/usb/scanner15 16th USB scanner
+ 64 = /dev/usb/rio500 Diamond Rio 500
181 char Conrad Electronic parallel port radio clocks
0 = /dev/pcfclock0 First Conrad radio clock
1 = /dev/pevss1 Second sender board
...
-185 char Reserved for InterMezzo high availability file system
+185 char InterMezzo high availability file system
+ 0 = /dev/intermezzo0 First cache manager
+ 1 = /dev/intermezzo1 Second cache manager
+ ...
+
+ See http://www.inter-mezzo.org/ for more information.
186 char Object-based storage control device
0 = /dev/obd0 First obd control device
See ftp://ftp.lustre.org/pub/obd for code and information.
-187 char UNALLOCATED
+187 char DESkey hardware encryption device
+ 0 = /dev/deskey0 First DES key
+ 1 = /dev/deskey1 Second DES key
+ ...
188 char USB serial converters
0 = /dev/ttyUSB0 First USB serial converter
1 = /dev/kctt1 Second KCT/T card
...
-191-239 UNALLOCATED
+191 char Reserved for PCMCIA
+
+192 char Kernel profiling interface
+ 0 = /dev/profile Profiling control device
+ 1 = /dev/profile0 Profiling device for CPU 0
+ 2 = /dev/profile1 Profiling device for CPU 1
+ ...
+
+193 char Kernel event-tracing interface
+ 0 = /dev/trace Tracing control device
+ 1 = /dev/trace0 Tracing device for CPU 0
+ 2 = /dev/trace1 Tracing device for CPU 1
+ ...
+
+194 char linVideoStreams (LINVS)
+ 0 = /dev/mvideo/status0 Video compression status
+ 1 = /dev/mvideo/stream0 Video stream
+ 2 = /dev/mvideo/frame0 Single compressed frame
+ 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
+ 4 = /dev/mvideo/codec0 Direct codec access
+ 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
+
+ 16 = /dev/mvideo/status1 Second device
+ ...
+ 32 = /dev/mvideo/status2 Third device
+ ...
+ ...
+ 240 = /dev/mvideo/status15 16th device
+ ...
+
+195-239 UNALLOCATED
240-254 LOCAL/EXPERIMENTAL USE
/dev/stderr fd/2 symbolic stderr file descriptor
/dev/nfsd socksys symbolic Required by iBCS-2
/dev/X0R null symbolic Required by iBCS-2
-/dev/i2o* /dev/i2o/* symbolic Backward compatibility
Note: /dev/X0R is <letter X>-<digit 0>-<letter R>.
/dev/ftape qft0 symbolic Backward compatibility
/dev/bttv0 video0 symbolic Backward compatibility
/dev/radio radio0 symbolic Backward compatibility
+/dev/i2o* /dev/i2o/* symbolic Backward compatibility
/dev/scd? sr? hard Alternate SCSI CD-ROM name
Locally defined links
+++ /dev/null
- Notes on Linux's SG driver version 2.1.36
- -----------------------------------------
- 20000110
-
-Introduction
-============
-The SCSI Generic driver (sg) is one of the four "high level" SCSI device
-drivers along with sd, st and sr (disk, tape and CDROM respectively). Sg
-is more generalized (but lower level) than its siblings and tends to be
-used on SCSI devices that don't fit into the already serviced categories.
-Thus sg is used for scanners, cd writers and reading audio cds digitally
-amongst other things.
-
-These are notes on the Linux SCSI generic packet device driver (sg)
-describing version 2.1.36 . The original driver was written by Lawrence
-Foard and remained in place with minimal changes since circa 1992.
-Version 2 of this driver remains backward compatible (binary and
-source **) with the original. It adds scatter gather, command queuing,
-per file descriptor sequencing, asynchronous notification and better
-error reporting.
-
-This is an abridged version of the sg documentation that is targeted
-at the linux/Documentation directory. The full document can be found
-at http://www.torque.net/sg/p/scsi-generic_long.txt .
-
-The interface and usage of the original sg driver have been documented
-by Heiko Eissfeldt in a HOWTO called SCSI-Programming-HOWTO. My copy
-of the document is version 1.5 dated 7th May 1996. It can found at
-ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO-SCSI-Programming-HOWTO .
-A copy of this document can be found at:
-http://www.torque.net/sg/p/original/HOWTO-SCSI-Programming-HOWTO.txt .
-
-** It is possible to write applications that perform differently
-depending on whether they are using the original or this version of
-the sg device driver. The author is not aware of any useful
-pre-existing applications that have problems with version 2.
-
-
-Architecture
-============
-The SCSI generic packet device driver (sg) is a character based device.
-It is one of the four high level device driver in the SCSI sub-system;
-the others are sd (for direct-access devices - disks), st (for tapes)
-and sr (for data cdroms). The other three devices are block devices.
-
-The unifying layer of the SCSI sub-system is the so-called mid-level.
-Below that are the "low level" drivers which are the drivers for the
-various adapters supported by Linux. Also at this level are pseudo
-adapter drivers such as ide-scsi which converts the SCSI protocol to
-ATAPI (which are similar to one another) for use by IDE devices.
-
-Since sg is a character device it supports the traditional Unix
-system calls of open(), close(), read(), write() and ioctl(). Two other
-related system calls: poll() and fcntl() are added to this list and
-how they interact with the sg device driver is documented later.
-
-An SG device is accessed by write()ing SCSI commands plus any associated
-outgoing data to it; the resulting status codes and any incoming data are
-then obtained by a read() call. The device can be opened O_NONBLOCK
-(non-blocking) and poll() used to monitor its progress. The device may be
-opened O_EXCL which excludes other "sg" users from this device (but not
-"sd", "st" or "sr" users). The buffer given to the write() call is made
-up as follows:
- - struct sg_header image (see below)
- - scsi command (6, 10 or 12 bytes long)
- - data to be written to the device (if any)
-
-The buffer received from the corresponding read() call contains:
- - struct sg_header image (check status/errors + sense_buffer)
- - data read back from device (if any)
-
-The given SCSI command has its LUN field overwritten by the LUN value of
-the associated sg device that has been open()ed.
-
-SCSI commands are only attempted once (i.e. there are no internal
-retries). If appropriate (e.g. a SCSI READ) the data buffer is copied back
-to user space irrespective of the values of the various SCSI related
-error/status codes. [Some adapters that use an old error interface in
-the SCSI mid level ignore the retry count and retry certain errors.]
-
-
-sg_header
-=========
-This is the name of the control structure that conveys information
-about the length of data to be read/written by the associated SCSI
-command. It also conveys error and status information from the
-read() call. An instance of this structure is the first thing that
-is placed in the data buffers of both write() and read().
-
-In its original form it looked like this:
-struct sg_header {
- int pack_len;
- int reply_len;
- int pack_id;
- int result;
- unsigned int twelve_byte:1;
- unsigned int other_flags:31;
- unsigned char sense_buffer[16];
-}; /* this structure is 36 bytes long */
-
-The 'pack_len' is bizarre and ends up having the 'reply_len' put in it
-(perhaps it had a use at some stage). Even though it looks like an
-input variable, it is not read by sg internally (only written).
-
-The 'reply_len' is the length of the data the corresponding read()
-will/should request (including the sg_header).
-
-The 'pack_id' is not acted upon by the sg device driver but is conveyed
-back to the corresponding read() so it can be used for sequencing by an
-application.
-
-The 'result' is also bizarre, turning certain types of host codes to 0 (no
-error), EBUSY or EIO. With better error reporting now available, the
-'result' is best ignored.
-
-The 'twelve_byte' field overrides the internal SCSI command length detection
-algorithm for group 6 and 7 commands (ie when 1st byte >= 0xc0) and forces
-a command length of 12 bytes.
-The command length detection algorithm is as follows:
-Group: 0 1 2 3 4 5 6 7
-Length: 6 10 10 12 12 12 10 10
-
-'other_flags' was originally documented as "not used" but some current
-applications assume it has 0 placed in it.
-
-The 'sense_buffer' is the first 16 bytes of SCSI sense buffer that is
-returned when the target returns a SCSI status code of CHECK_CONDITION
-or COMMAND_TERMINATED [or (driver_status & DRIVER_SENSE) is true]. This
-buffer should be at least 18 bytes long and arguably 32 bytes; unfortunately
-this is unlikely to happen in the 2.2.x series of kernels.
-
-
-The new sg_header offered in this driver is:
-#define SG_MAX_SENSE 16
-struct sg_header
-{
- int pack_len; /* [o] reply_len (ie useless) ignored as input */
- int reply_len; /* [i] max length of expected reply (inc. sg_header) */
- int pack_id; /* [io] id number of packet (use ints >= 0) */
- int result; /* [o] 0==ok, else (+ve) Unix errno (best ignored) */
- unsigned int twelve_byte:1;
- /* [i] Force 12 byte command length for group 6 & 7 commands */
- unsigned int target_status:5; /* [o] scsi status from target */
- unsigned int host_status:8; /* [o] host status (see "DID" codes) */
- unsigned int driver_status:8; /* [o] driver status+suggestion */
- unsigned int other_flags:10; /* unused */
- unsigned char sense_buffer[SG_MAX_SENSE]; /* [o] Output in 3 cases:
- when target_status is CHECK_CONDITION or
- when target_status is COMMAND_TERMINATED or
- when (driver_status & DRIVER_SENSE) is true. */
-}; /* This structure is 36 bytes long on i386 */
-
-Firstly the new header is binary compatible with the original. This is
-important for keeping existing apps working without recompilation.
-
-Only those elements (or fields) that are new or in some way different
-from the original are documented below.
-
-'pack_id' becomes input to a read() when ioctl(sg_fd, SG_SET_FORCE_PACK_ID,
-&one) is active. A 'pack_id' of -1 is interpreted as fetch the oldest
-waiting packet; any other value will cause the read() to wait (or yield
-EAGAIN) until a packet with that 'pack_id' becomes available. In all cases
-the value of 'pack_id' available after a read() is the value given to that
-variable in the prior, corresponding write().
-
-The SCSI command length can now be given directly using the SG_NEXT_CMD_LEN
-ioctl().
-
-The 'target_status' field is always output and is the (masked and shifted
-1 bit right) SCSI status code from the target device. The allowable
-values are (found in <scsi/scsi.h>):
-/* N.B. 1 bit offset from usual SCSI status values */
-#define GOOD 0x00
-#define CHECK_CONDITION 0x01
-#define CONDITION_GOOD 0x02
-#define BUSY 0x04
-#define INTERMEDIATE_GOOD 0x08
-#define INTERMEDIATE_C_GOOD 0x0a
-#define RESERVATION_CONFLICT 0x0c
-#define COMMAND_TERMINATED 0x11
-#define QUEUE_FULL 0x14
-When the 'target_status' is CHECK_CONDITION or COMMAND_TERMINATED the
-'sense_buffer' is output. Note that when (driver_status & DRIVER_SENSE)
-is true then the 'sense_buffer' is also output (this seems to occur when
-the ide-scsi emulation is used). When the 'sense_buffer' is output the
-SCSI Sense Key can be found at (sense_buffer[2] & 0x0f) .
-
-The 'host_status' field is always output and has the following values
-whose "defines" are not visible outside the kernel. A copy of these
-defines can be found in sg_err.h (see the utilities section):
-#define DID_OK 0x00 /* NO error */
-#define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */
-#define DID_BUS_BUSY 0x02 /* BUS stayed busy through time out period */
-#define DID_TIME_OUT 0x03 /* TIMED OUT for other reason */
-#define DID_BAD_TARGET 0x04 /* BAD target, device not responding? */
-#define DID_ABORT 0x05 /* Told to abort for some other reason */
-#define DID_PARITY 0x06 /* Parity error */
-#define DID_ERROR 0x07 /* Internal error [DMA underrun on aic7xxx]*/
-#define DID_RESET 0x08 /* Reset by somebody. */
-#define DID_BAD_INTR 0x09 /* Got an interrupt we weren't expecting. */
-#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */
-#define DID_SOFT_ERROR 0x0b /* The low level driver wants a retry */
-
-The 'driver_status' field is always output. When ('driver_status' &
-DRIVER_SENSE) is true the 'sense_buffer' is also output. A copy of these
-defines can be found in sg_err.h (see the utilities section):
-#define DRIVER_OK 0x00 /* Typically no suggestion */
-#define DRIVER_BUSY 0x01
-#define DRIVER_SOFT 0x02
-#define DRIVER_MEDIA 0x03
-#define DRIVER_ERROR 0x04
-#define DRIVER_INVALID 0x05
-#define DRIVER_TIMEOUT 0x06
-#define DRIVER_HARD 0x07
-#define DRIVER_SENSE 0x08 /* Implies sense_buffer output */
-/* above status 'or'ed with one of the following suggestions */
-#define SUGGEST_RETRY 0x10
-#define SUGGEST_ABORT 0x20
-#define SUGGEST_REMAP 0x30
-#define SUGGEST_DIE 0x40
-#define SUGGEST_SENSE 0x80
-
-'other_flags' still remains as a 10 bit field (reduced from 31 bits), so
-code that places 0 in it will still be happy. It is not used.
-
-
-System Calls
-============
-What follows are descriptions of the characteristics of the standard
-Unix operating system calls when applied to a SCSI generic device
-using this version of the device driver.
-
-open(const char * filename, int flags)
---------------------------------------
-The filename should be an 'sg' device such as
-/dev/sg[a-z]
-/dev/sg[0,1,2,...]
-or a symbolic link to one of these. [Devfs has its own sub-directory for
-sg devices with entries like: /dev/sg/c1b2t3u4 .] It seems as though SCSI
-devices are allocated to sg minor numbers in the same order as they appear
-in 'cat /proc/scsi/scsi'. Sg is a "character" based Linux device driver.
-This means it has an open/close/read/write/ioctl type interface.
-
-Flags can be either O_RDONLY or O_RDWR or-ed with either
-O_EXCL waits for other opens on sg device to be closed before
- proceeding. If O_NONBLOCK is set then yields EBUSY when
- someone else has the sg device open. The combination of
- O_RDONLY and O_EXCL is disallowed.
-O_NONBLOCK Sets non-blocking mode. Calls that would otherwise block
- yield EAGAIN (eg read() ) or EBUSY (eg open() ).
-
-The original version of sg did not allow the O_RDONLY (yielding a EACCES
-error). This version allows it for accessing ioctls (e.g. doing an sg
-device scan with the SG_GET_SCSI_ID ioctl) but write()s will not be
-allowed. These flags are found in <fcntl.h> .
-
-By default, sequencing is per file descriptor in this version of sg. This
-means, for example that 2 processes can independently manipulate the same
-sg device at the same time. This may or may not make sense depending on
-the application: 2 processes (logically) reading from the same direct access
-device (ie a disk) is ok while running 2 instances of cd writing software
-on the same device at the same time probably wouldn't be a good idea. The
-previous version of sg supported only per device sequencing and this can
-still be selected with the SG_SET_MERGE_FD,1 ioctl().
-
-The driver will attempt to reserve SG_DEF_RESERVED_SIZE bytes (32KBytes in
-the current sg.h) on open(). The size of this reserved buffer can
-subsequently be modified with the SG_SET_RESERVED_SIZE ioctl(). In both
-cases these are requests subject to various dynamic constraints. The actual
-amount of memory obtained can be found by the SG_GET_RESERVED_SIZE ioctl().
-The reserved buffer will be used if:
- - it is not already in use (eg when command queuing is in use)
- - a write() does not call for a buffer size larger than the
- reserved size.
-
-Returns a file descriptor if >= 0 , otherwise -1 implies an error.
-
-Error codes (value in 'errno' after -1 returned):
-EACCES Either the user doesn't have appropriate permissions on
- 'filename' or attempted to use both O_RDONLY and O_EXCL
-EBUSY O_NONBLOCK set and some user of this sg device has O_EXCL
- set while someone is already using this device
-EINTR while waiting for an "exclusive" lock to clear, a signal
- is received, just try again ...
-ENODEV sg not compiled into kernel or the kernel cannot find the
- sg module (or it can't initialize itself (low memory??))
-ENOENT given filename not found
-ENOMEM An attempt to get memory to store this open's context
- failed (this was _not_ a request to reserve DMA memory)
-ENXIO either there is no attached device corresponding to given
- filename or scsi sub-system is currently processing some
- error (eg doing a device reset) or the sg driver/module
- removed or corrupted
-
-
-write(int sg_fd, const void * buffer, size_t count)
----------------------------------------------------
-Even though sg is a character-based device driver it sends and receives
-packets to/from the associated scsi device. Write() is used to send a
-packet containing 2 mandatory parts and 1 optional part. The mandatory
-parts are:
- - a control block (an instance of struct sg_header)
- - a SCSI command (6, 10 or 12 bytes long)
-The optional part is:
- - outgoing data (eg if a SCSI write command is being sent)
-These should appear as one contiguous string in the buffer given to
-write() in the above order with no pad characters.
-
-If a write() accepts this packet then at some later time the user should
-call a read() to get the result of the SCSI command. The previous sg
-driver enforced a strict write()/read()/write()/read() regime so that a
-second write() would block until first read() was finished. This sg
-driver relaxes that condition and thereby allows command queuing
-(limit is SG_MAX_QUEUE (16) outstanding packets per file descriptor).
-However, for backward compatibility, command queuing is turned off
-by default (#define SG_DEF_COMMAND_Q 0 in sg.h). This can be changed
-via the the SG_SET_COMMAND_Q ioctl() [or by recompiling after changing
-the above define to 1].
-
-In this sg driver a write() should return more or less immediately.
-
-Returns number of bytes written if > 0 , otherwise -1 implies an error.
-
-Error codes (value in 'errno' after -1 returned):
-EACCES opened with RD_ONLY flag
-EAGAIN SCSI mid-level out of command blocks (rare), try again.
- This is more likely to happen when queuing commands,
- so wait a bit (eg usleep(10000) ) before trying again
-EDOM a) command queuing off: a packet is already queued
- b) command queuing on: too many packets queued
- (SG_MAX_QUEUE exceeded)
-EFAULT 'buffer' for 'count' bytes is an invalid memory range
-EIO a) incoming buffer too short. It should be at least
- (6 + sizeof(struct sg_header))==42 bytes long
- b) SCSI command length given in SG_NEXT_CMD_LEN too long
- c) reply_len negative
-ENOMEM can't get memory for DMA. Take evasive action ...
-ENXIO either scsi sub-system is currently processing some error
- (eg doing a device reset) or the sg driver/module removed
- or corrupted
-
-
-read(int sg_fd, void * buffer, size_t count)
---------------------------------------------
-Read() is used to receive a packet containing 1 mandatory part and 1
-optional part. The mandatory part is:
- - a control block (an instance of struct sg_header)
-The optional part is:
- - incoming data (eg if a SCSI read command was sent by earlier write() )
-The buffer given to a read() and its corresponding count should be
-sufficient to accommodate this packet to avoid truncation. Truncation occurs
-if count < sg_header::replylen .
-
-By default, read() will return the oldest packet queued up. If the
-SG_SET_FORCE_PACK_ID,1 ioctl() is active then read() will attempt to
-fetch the packet whose pack_id (given earlier to write()) matches the
-sg_header::pack_id given to this read(). If not available it will either
-wait or yield EAGAIN. As a special case, -1 in sg_header::pack_id given
-to read() will match the oldest packet.
-
-Returns number of bytes read if > 0 , otherwise -1 implies an error.
-Unfortunately the return value in the non-error case is simply the
-same as the count argument. It is not the actual number of bytes
-DMA-ed by the SCSI device. This driver is currently unable to provide
-such an underrun indication.
-
-If the SCSI device reports an error then a REQUEST SENSE is automatically
-done and the output is placed in the sense_buffer array which is in the
-control block. This action is sometimes called "auto-sense".
-
-Error codes (value in 'errno' after -1 returned):
-EAGAIN either no waiting packet or requested packet is not
- available while O_NONBLOCK flag was set
-EFAULT 'buffer' for 'count' bytes is an invalid memory range
-EINTR while waiting for a packet, a signal is received, just
- try again ...
-EIO if the 'count' given to read() is < sizeof(struct sg_header)
- and the 'result' element in sg_header is non-zero. Not a
- recommended error reporting technique
-ENXIO either scsi sub-system is currently processing some error
- (eg doing a device reset) or the sg driver/module removed
- or corrupted
-
-
-close(int sg_fd)
-----------------
-Preferably a close() should be done after all issued write()s have had
-their corresponding read() calls completed. Unfortunately this is not
-always possible. The semantics of close() in Unix are to return more
-or less immediately (ie not wait on any event) so the driver needs to
-arrange for an orderly cleanup of those packets that are still "in
-flight".
-
-A process that has an open file descriptor to an sg device may be aborted
-(eg by a kill signal). In this case, the kernel automatically calls close
-(which is called 'sg_release()' in the version 2 driver) to facilitate
-the cleanup mentioned above.
-
-A problem persists in version 2.1.36 if the sg driver is a module and is
-removed while packets are still "in flight".
-
-Returns 0 if successful, otherwise -1 implies an error.
-
-Error codes (value in 'errno' after -1 returned):
-ENXIO sg driver/module removed or corrupted
-
-ioctl(int sg_fd, int command, ...) [sg specific]
--------------------------------------------------
-Ken Thompson (or perhaps some other Unix luminary) described ioctl() as
-the "garbage bin of Unix". This driver compounds the situation by adding
-more ...
-If a ioctl command is not recognized by sg (and the various lower levels
-that it may pass the command on to) then the error EINVAL occurs. If an
-invalid address is given (in the 3rd argument) then the error EFAULT occurs.
-
-Those commands with an appended "+" are new in version 2.
-
-Those commands with an appended "W" are only accessible from file
-descriptors opened with O_RDWR. They will yield EACCES otherwise.
-
-SG_GET_TIMEOUT:
-Ignores its 3rd argument and _returns_ the timeout value (which will be
->= 0 ). The unit of this timeout is "jiffies" which are currently 10
-millisecond intervals on i386 (less on an alpha). Linux supplies
-a manifest constant HZ which is the number of "jiffies" in 1 second.
-
-SG_SET_TIMEOUT:
-Assumes 3rd argument points to an int containing the new timeout value
-for this file descriptor. The unit is a "jiffy". Packets that are
-already "in flight" will not be affected. The default value is set
-on open() and is SG_DEFAULT_TIMEOUT (defined in sg.h). This default is
-currently 1 minute and may not be long enough for formats. Negative
-values will yield an EIO error.
-
-SG_EMULATED_HOST:
-Assumes 3rd argument points to an int and outputs a flag indicating
-whether the host (adapter) is connected to a real SCSI bus or is an
-emulated one (eg ide-scsi device driver). A value of 1 means emulated
-while 0 is not.
-
-SG_SET_TRANSFORM W:
-Only is meaningful when SG_EMULATED host has yielded 1 (i.e. the low-level
-is the ide-scsi device driver); otherwise an EINVAL error occurs. The
-default state is to _not_ transform SCSI commands to the corresponding
-ATAPI commands but pass them straight through as is. [Only certain classes
-of SCSI commands need to be transformed to their ATAPI equivalents.]
-The third argument is interpreted as an integer. When it is non-zero then
-a flag is set inside the ide-scsi driver that transforms subsequent
-commands sent to this driver. When zero is passed as the 3rd argument to
-this ioctl then the flag within the ide-scsi driver is cleared and
-subsequent commands are not transformed. Beware, this state will affect
-all devices (and hence all related sg file descriptors) associated with
-this ide-scsi "bus".
-
-SG_GET_TRANSFORM:
-Third argument is ignored. Only is meaningful when SG_EMULATED host has
-yielded 1 (ie the low-level is the ide-scsi device driver); otherwise
-an EINVAL error occurs. Returns 0 to indicate _not_ transforming SCSI
-to ATAPI commands (default). Returns 1 when it is transforming them.
-
-SG_SET_FORCE_LOW_DMA +:
-Assumes 3rd argument points to an int containing 0 or 1. 0 (default)
-means sg decides whether to use memory above 16 Mbyte level (on i386)
-based on the host adapter being used by this SCSI device. Typically
-PCI SCSI adapters will indicate they can DMA to the whole 32 bit address
-space.
-If 1 is given then the host adapter is overridden and only memory below
-the 16MB level is used for DMA. A requirement for this should be
-extremely rare. If the "reserved" buffer allocated on open() is not in
-use then it will be de-allocated and re-allocated under the 16MB level
-(and the latter operation could fail yielding ENOMEM).
-Only the current file descriptor is affected.
-
-SG_GET_LOW_DMA +:
-Assumes 3rd argument points to an int and places 0 or 1 in it. 0
-indicates the whole 32 bit address space is being used for DMA transfers
-on this file descriptor. 1 indicates the memory below the 16MB level
-(on i386) is being used (and this may be the case because the host
-adapters setting has been overridden by SG_SET_FORCE_LOW_DMA,1 .
-
-SG_GET_SCSI_ID +:
-Assumes 3rd argument is pointing to an object of type Sg_scsi_id (see
-sg.h) and populates it. That structure contains ints for host_no,
-channel, scsi_id, lun, scsi_type, allowable commands per lun and
-queue_depth. Most of this information is available from other sources
-(eg SCSI_IOCTL_GET_IDLUN and SCSI_IOCTL_GET_BUS_NUMBER) but tends to be
-awkward to collect.
-Allowable commands per lun and queue_depth give an insight to the
-command queuing capabilities of the adapters and the device. The latter
-overrides the former (logically) and the former is only of interest
-if it is equal to queue_depth which probably indicates the device
-does not support queueing commands (e.g. most scanners).
-
-SG_SET_FORCE_PACK_ID +:
-Assumes 3rd argument is pointing to an int. 0 (default) instructs read()
-to return the oldest (written) packet if multiple packets are
-waiting to be read (when command queuing is being used).
-1 instructs read() to view the sg_header::pack_id as input and return the
-oldest packet matching that pack_id or wait until it arrives (or yield
-EAGAIN if O_NONBLOCK is in force). As a special case the pack_id of -1
-given to read() in the mode will match the oldest packet.
-Only the current file descriptor is affected by this command.
-
-SG_GET_PACK_ID +:
-Assumes 3rd argument points to an int and places the pack_id of the
-oldest (written) packet in it. If no packet is waiting to be read then
-yields -1.
-
-SG_GET_NUM_WAITING +:
-Assumes 3rd argument points to an int and places the number of packets
-waiting to be read in it.
-
-SG_GET_SG_TABLESIZE +:
-Assumes 3rd argument points to an int and places the maximum number of
-scatter gather elements supported by the host adapter. 0 indicates that
-the adapter does support scatter gather.
-
-SG_SET_RESERVED_SIZE +W:
-Assumes 3rd argument is pointing to an int. That value will be used to
-request a new reserved buffer of that size. The previous reserved buffer
-is freed (if it is not in use; if it was in use -EBUSY is returned).
-A new reserved buffer is then allocated and its actual size can be found by
-calling the SG_GET_RESERVED_SIZE ioctl(). The reserved buffer is then used
-for DMA purposes by subsequent write() commands if it is not already in
-use and if the write() is not calling for a buffer size larger than that
-reserved. The reserved buffer may well be a series of kernel buffers if the
-adapter supports scatter-gather. Large buffers can be requested (eg 1 MB).
-
-SG_GET_RESERVED_SIZE +:
-Assumes 3rd argument points to an int and places the size in bytes of
-the reserved buffer from open() or the most recent SG_SET_RESERVED_SIZE
-ioctl() call on this fd. The result can be 0 if memory is very tight. In
-this case it may not be wise to attempt something like burning a CD on
-this file descriptor.
-
-SG_SET_MERGE_FD +W:
-Assumes 3rd argument is pointing to an int. 0 (the default) causes all
-subsequent sequencing to be per file descriptor. 1 causes all subsequent
-sequencing to be per device. If this command tries to change the current
-state and there is one or more _other_ file descriptors using this sg
-device then an EBUSY error occurs. Per device sequencing was the original
-semantics and allowed, for example different processes to "share" the
-device, one perhaps write()ing with the other one read()ing. This command
-is supplied if anyone needs those semantics. Per file descriptor
-sequencing, perhaps with the use of the O_EXCL flag, seems more sensible.
-
-SG_GET_MERGE_FD +:
-Assumes 3rd argument points to an int and places 0 or 1 in it. 0 implies
-sequencing is per file descriptor. 1 implies sequencing is per device
-(original sg driver's semantics).
-
-SG_SET_COMMAND_Q +:
-Assumes 3rd argument is pointing to an int. 0 (current default, set by
-SG_DEF_COMMAND_Q in sg.h) disables command queuing. Attempts to write()
-a packet while one is already queued will result in a EDOM error.
-1 turns command queuing on.
-Changing the queuing state only affects write()s done after the change.
-Only the current file descriptor is affected by this command.
-
-SG_GET_COMMAND_Q +:
-Assumes 3rd argument points to an int and places 0 or 1 in it. 0 implies
-that command queuing is off on this file descriptor. 1 implies command
-queuing is on.
-
-SG_SET_UNDERRUN_FLAG +:
-Assumes 3rd argument is pointing to an int. 0 (current default, set by
-SG_DEF_UNDERRUN_FLAG in sg.h) requests underruns be ignored. 1 requests
-that underruns be flagged. [The only low level driver that acts on this
-at the moment is the aic7xxx which yields a DID_ERROR error on underrun.]
-Only the current file descriptor is affected by this command (unless
-"per device" sequencing has been selected).
-
-SG_GET_UNDERRUN_FLAG +:
-Assumes 3rd argument points to an int and places 0 or 1 in it. 0 implies
-that underruns are not being reported. 1 implies that underruns are being
-reported (see SG_SET_UNDERRUN_FLAG for more details).
-
-SG_NEXT_CMD_LEN +:
-Assumes 3rd argument is pointing to an int. The value of the int (if > 0)
-will be used as the SCSI command length of the next SCSI command sent to
-a write() on this fd. After that write() the SCSI command length logic is
-reset to use automatic length detection (ie depending on SCSI command group
-and the 'twelve_byte' field). If the current SCSI command length maximum of
-12 is exceeded then the affected write() will yield an EDOM error.
-Giving this ioctl() a value of 0 will set automatic length detection for
-the next write(). N.B. Only the following write() on this fd is affected by
-this ioctl().
-
-SG_GET_VERSION_NUM +:
-Assumes 3rd argument points to an int. The version number is then placed
-in that int. A sg version such as 2.1.36 will yield "20136" from this ioctl.
-
-SG_SCSI_RESET +:
-Assumes 3rd argument points to an int. Unfortunately doesn't currently
-do much (may in the future after other issues are resolved). Yields an
-EBUSY error if the SCSI bus or the associated device is being reset
-when this ioctl() is called, otherwise returns 0.
-
-SG_SET_DEBUG +:
-Assumes 3rd argument is pointing to an int. 0 (default) turns debugging
-off. Values > 0 cause the SCSI sense buffer to be decoded and output
-to the console/log when a SCSI device error occurs. Values > 8 cause
-the current sg device driver's state to be output to the console/log
-(this is a "one off" effect).
-If you need a _lot_ of the SCSI sub-system debug information (mainly from
-the mid-level) then try 'echo "scsi dump 0" > /proc/scsi/scsi' and lots of
-debug will appear in your console/log.
-
-
-poll(struct pollfd * udfds, unsigned int nfds, int timeout_ms)
---------------------------------------------------------------
-This is a native call in Linux 2.2 but most of its capabilities are available
-through the older select() call. Given a choice poll() should probably be
-used. Typically poll() is used when a sg scsi device is open()ed O_NONBLOCK
-for polling; and optionally with asynchronous notification as well using
-the fcntl() system call (below) and the SIGPOLL (aka SIGIO) signal.
-Only if something drastically is wrong (eg file handle gone stale) will
-POLLERR ever be set. POLLPRI, POLLHUP and POLLNVAL are never set.
-POLLIN is set when there is one or more packets waiting to be read.
-When POLLIN is set it implies that a read() will not block (nor yield
-EAGAIN in non-blocking mode) but return a packet immediately.
-POLLOUT (aka POLLWRNORM) is set when write() is able to accept a packet
-(ie will _not_ yield an EDOM error). The setting of POLLOUT is affected
-by the SG_SET_COMMAND_Q state: if the state is on then POLLOUT will remain
-set until the number of queued packets reaches SG_MAX_QUEUE, if the
-state is off then POLLOUT is only set when no packets are queued.
-Note that a packet can be queued after write()ing but not available to be
-read(); this typically happens when a SCSI read command is issued while
-the data is being retrieved.
-Poll() is per file descriptor unless SG_SET_MERGE_FD is set in which case
-it is per device.
-
-
-fcntl(int sg_fd, int cmd) or fcntl(int sg_fd, int cmd, long arg)
-----------------------------------------------------------------
-There are several uses for this system call in association with a sg
-file descriptor. The following pseudo code shows code that is useful for
-scanning the sg devices, taking care not to be caught in a wait for
-an O_EXCL lock by another process, and when the appropriate device is
-found, switching to normal blocked io. A working example of this logic
-is in the sg_scan utility program.
-
-open("/dev/sga", O_RDONLY | O_NONBLOCK)
-/* check device, EBUSY means some other process has O_EXCL lock on it */
-/* when the device you want is found then ... */
-flags = fcntl(sg_fd, F_GETFL)
-fcntl(sg_fd, F_SETFL, flags & (~ O_NONBLOCK))
-/* since, for simple apps, it is easier to use normal blocked io */
-
-
-Some work has to be done in Linux to set up for asynchronous notification.
-This is a non-blocking mode of operation in which, when the driver receives
-data back from a device so that a read() can be done, it sends a SIGPOLL
-(aka SIGIO) signal to the owning process. A working example of this logic
-is in the sg_poll test program.
-
-sigemptyset(&sig_set)
-sigaddset(&sig_set, SIGPOLL)
-sigaction(SIGPOLL, &s_action, 0)
-fcntl(sg_fd, F_SETOWN, getpid())
-flags = fcntl(sg_fd, F_GETFL);
-fcntl(sg_fd, F_SETFL, flags | O_ASYNC)
-
-
-Utility and Test Programs
-=========================
-See the README file in the sg_utils<date>.tgz tarball. Look on the
-http://www.torque.net/sg website for the latest version.
-
-Briefly, that tarball contains the following utilities:
-sg_dd512 'dd' like program that assumes 512 byte blocks size
-sg_dd2048 'dd' like program that assumes 2048 byte blocks size
-sg_dd2352 'dd' like program that assumes 2352 byte blocks size
-sgq_dd512 like 'sg_dd512' but does command queuing on "if"
-sgp_dd probably the most flexible 'dd' variant. It uses POSIX
- threads, block size set by "bs=..." plus other options.
-sg_scan outputs information (optionally Inquiry) on SCSI devices
-sg_rbuf tests SCSI bus transfer speed (without physical IO)
-sg_whoami outputs info (optionally capacity) of given SCSI device
-sginfo outputs "mode" information about SCSI devices (it is a
- re-port of the scsiinfo program onto the sg interface)
-
-It also contains the following test programs:
-sg_debug outputs sg driver state to console/log file
-sg_poll tests asynchronous notification
-sg_runt_ex example run time selection program for application authors
-sg_simple1 example program first time users
-sg_simple2 like sg_simple1 but with more primitive error processing
-sg_inquiry does a SCSI Inquiry command (from original HOWTO)
-sg_tst_med checks presence of media (from original HOWTO)
-
-There are also 2 source files (sg_err.[hc]) for outputting and categorizing
-SCSI 2 errors and warnings. This code is used by most of the above
-utility and test programs.
-
-The following programs: sg_dd512, sg_dd2048, sg_dd2352, sg_scan, sg_runt_ex,
-sg_rbuf, sg_tst_med, sg_inquiry and sginfo, can be compiled either for this
-new sg driver _or_ the original sg driver (in 2.0 or 2.2 series kernels).
-sg_runt_ex can be run on 2.0, 2.2 or 2.3 series kernels even if it is
-compiled on a different series (eg compiled on 2.0, run on 2.2).
-
-
-Header files
-============
-User applications need to find the correct "sg.h" header file matching
-their kernel in order to write code using the sg device driver. This is
-sometimes more difficult than it should be. The correct "sg.h" will usually
-be found at /usr/src/linux/include/scsi/sg.h . Another important header
-file is "scsi.h" which will be in the same directory.
-
-When "#include <scsi/sg.h>" is written in an application then this refers
-to the file /usr/include/scsi/sg.h . A problem sometimes arises because
-the files in the /usr/include/scsi directory are controlled by the GNU
-library people who maintain glibc. Unfortunately these 2 versions of
-the sg.h header file are not always in sync. [This was the case in Redhat
-6.0 and 6.1 .] Glibc 2.1.3 and later versions should get this right.
-
-If this is a problem, the user may need to copy sg.h (and scsi.h) from
-the kernel source includes to /usr/include scsi. If the user can change
-the effected source code then another approach is to rely on the fact that
-/usr/src/linux is a symbolic link to /usr/src/linux/include/linux and
-change the sg.h include to look like:
- #include <linux/../scsi/sg.h>
-This solution is used by the author of cdparanoia (Monty) in his application.
-
-[Former scsi generic documents suggested adding a symbolic link to
-bypass this problem but that is not popular with the glibc maintainers.
-I would like to thank Andreas Jaeger <aj@suse.de> for his contributions
-on this subject.]
-
-
-Extra information in scsi-generic_long.txt
-==========================================
-This document is an abridged form of a more comprehensive document called
-scsi-generic_long.txt (see www.torque.net/sg/p/scsi-generic_long.txt).
-
-The longer document contains additional sections on:
- - memory issues
- - ioctl()s in common with sd, st + sr
- - distinguishing the original from the new driver
- - SG_BIG_BUFF and friends
- - shortcomings
- - future directions
- - an appendix with some SCSI 2 information in it
-
-
-References
-==========
-http://www.t10.org Very important site for SCSI related information.
- Contains SCSI 2 and 3 draft standards.
-http://www.andante.org/scsi.html
- This is Eric Youngdale's site. Eric is primarily
- responsible for the Linux SCSI architecture and
- its mid-level implementation.
-http://www.kernel.dk Jens Axboe's site for Linux cdrom matters including
- the SCSI "sr" driver.
-http://www.torque.net/sg
- My site with sg related information.
-newsgroup:linux-scsi@vger.rutgers.edu
- Newsgroup for Linux related SCSI matters
-/usr/src/linux/MAINTAINERS
- This is a file in the Linux kernel source that
- contains up to date information about who maintains
- what and where information can be found. Links to
- SCSI adapter information are also here.
-
-
-Conclusion
-==========
-The SCSI generic packet device driver attempts to make as few assumptions
-as possible about the device it is connected to while giving applications
-using it as much flexibility as possible on the SCSI command level. Sg
-needs to hide the "messy" kernel related details while protecting
-the integrity of the kernel against sg "abuse". Some of these aims are
-contradictory and some compromises need to be made. For example: should
-a sg based application be able to reset a SCSI bus when that could cause
-collateral damage to a disk holding the root file system? There is no
-easy answer to this and many other related questions.
-
-If you have any suggestion about sg (or improving (the accuracy of) this
-document) please contact me.
-
-
-Douglas Gilbert
-dgilbert@interlog.com
Documentation for the OPL3-SA2, SA3, and SAx driver (opl3sa2.o)
---------------------------------------------------------------
-Scott Murray, scottm@interlog.com
+Scott Murray, scott@spiteful.org
January 5, 1999
NOTE: All trade-marked terms mentioned below are properties of their
VERSION = 2
PATCHLEVEL = 2
SUBLEVEL = 15
-EXTRAVERSION = pre15
+EXTRAVERSION = pre16
ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
asmlinkage int sys_pciconfig_read() { return -ENOSYS; }
asmlinkage int sys_pciconfig_write() { return -ENOSYS; }
+asmlinkage long sys_pciconfig_iobase() { return -ENOSYS; }
void reset_for_srm(void) { }
#else /* CONFIG_PCI */
void __init
pcibios_init(void)
{
+ long i;
+
+ /* For the benefit of single-bus machines, emulate a multi-bus
+ machine to the (limited) extent necessary. Init all bus2hose
+ entries to point to a dummy. */
+ for (i = 0; i < 256; ++i)
+ bus2hose[i] = &default_hose;
+
if (!pcibios_present())
return;
return err;
}
+/* Provide information on locations of various I/O regions in physical
+ memory. Do this on a per-card basis so that we choose the right hose. */
+
+asmlinkage long
+sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn)
+{
+ struct linux_hose_info *hose;
+
+ hose = bus2hose[bus & 255];
+ if (!hose)
+ return -ENODEV;
+
+ switch (which) {
+ case IOBASE_HOSE:
+ return hose->pci_hose_index;
+ case IOBASE_SPARSE_MEM:
+ return hose->pci_sparse_mem_space;
+ case IOBASE_DENSE_MEM:
+ return hose->pci_dense_mem_space;
+ case IOBASE_SPARSE_IO:
+ return hose->pci_sparse_io_space;
+ case IOBASE_DENSE_IO:
+ return hose->pci_dense_io_space;
+ }
+
+ return -EOPNOTSUPP;
+}
+
/*
* Gory details start here...
for (hose = hose_head; hose; hose = hose->next)
layout_one_hose(hose);
- } else {
- /* For the benefit of single-bus machines, emulate a
- multi-bus machine to the (limited) extent necessary.
- Init all bus2hose entries to point to a dummy. */
- hose = &default_hose;
- for (i = 0; i < 256; ++i)
- bus2hose[i] = hose;
}
}
extern struct linux_hose_info *hose_head, **hose_tail;
extern int hose_count;
extern int pci_probe_enabled;
+extern struct linux_hose_info default_hose;
#include <asm/system.h>
#include <asm/ptrace.h>
+#include <asm/pci.h>
#define __EXTERN_INLINE inline
#include <asm/io.h>
#undef __EXTERN_INLINE
#include "proto.h"
+#include "bios32.h"
/*
* NOTE: Herein lie back-to-back mb instructions. They are magic.
* what ARC or SRM might have left behind...
*/
*(vuip)APECS_IOC_HAXR2 = 0; mb();
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = APECS_IO - IDENT_ADDR;
+ default_hose.pci_sparse_mem_space = APECS_SPARSE_MEM - IDENT_ADDR;
+ default_hose.pci_dense_io_space = 0;
+ default_hose.pci_dense_mem_space = APECS_DENSE_MEM - IDENT_ADDR;
}
int
#include <asm/system.h>
#include <asm/ptrace.h>
+#include <asm/pci.h>
#define __EXTERN_INLINE inline
#include <asm/io.h>
#undef __EXTERN_INLINE
#include "proto.h"
+#include "bios32.h"
/*
* NOTE: Herein lie back-to-back mb instructions. They are magic.
*((vuip)CIA_IOC_HAE_IO) = 0; mb();
*((vuip)CIA_IOC_HAE_IO); /* read it back. */
}
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = CIA_IO - IDENT_ADDR;
+ default_hose.pci_sparse_mem_space = CIA_SPARSE_MEM - IDENT_ADDR;
+ default_hose.pci_dense_io_space = 0;
+ default_hose.pci_dense_mem_space = CIA_DENSE_MEM - IDENT_ADDR;
}
void
void __init
irongate_init_arch(unsigned long *mem_start, unsigned long *mem_end)
{
- struct linux_hose_info *hose;
-
irongate_register_dump(__FUNCTION__);
- /* Align memory to cache line; we'll be allocating from it. */
-
- *mem_start = (*mem_start | 31) + 1;
-
- /*
- * Irongate only supports one PCI bus but do the hose thing anyway.
- * Anything to do for AGP???
- */
-
- hose = (struct linux_hose_info *) *mem_start;
- *mem_start = (unsigned long)(hose + 1);
- memset(hose, 0, sizeof(*hose));
- hose->pci_io_space = IRONGATE_IO;
- hose->pci_mem_space = IRONGATE_MEM;
- hose->pci_config_space = IRONGATE_CONF;
- hose->pci_sparse_space = 0;
- hose->pci_hose_index = 0;
-
- /* add it to the hose list for bios32.[ch] */
-
- *hose_tail = hose;
- hose_tail = &hose->next;
-
IRONGATE0->stat_cmd = IRONGATE0->stat_cmd & ~0x100;
irongate_pci_clr_err();
+
+ /* Tell userland where I/O space is located. For some reason,
+ the 40-bit PIO bias that we use in the kernel through KSEG
+ didn't work for the page table based user mappings. So make
+ sure we get the 43-bit PIO bias. */
+ default_hose.pci_sparse_io_space = 0;
+ default_hose.pci_sparse_mem_space = 0;
+ default_hose.pci_dense_io_space
+ = (IRONGATE_IO & 0xffffffffff) | 0x80000000000;
+ default_hose.pci_dense_mem_space
+ = (IRONGATE_MEM & 0xffffffffff) | 0x80000000000;
}
int
#include <asm/ptrace.h>
#include <asm/system.h>
-#include <asm/smp.h>
+#include <asm/pci.h>
#define __EXTERN_INLINE inline
#include <asm/io.h>
#undef __EXTERN_INLINE
#include "proto.h"
+#include "bios32.h"
/*
* BIOS32-style PCI interface:
* data parity errors.
*/
*(vulp)LCA_IOC_PAR_DIS = 1UL<<5;
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = LCA_IO - IDENT_ADDR;
+ default_hose.pci_sparse_mem_space = LCA_SPARSE_MEM - IDENT_ADDR;
+ default_hose.pci_dense_io_space = 0;
+ default_hose.pci_dense_mem_space = LCA_DENSE_MEM - IDENT_ADDR;
}
/*
mcpcia_hoses[h] = hose;
- hose->pci_io_space = MCPCIA_IO(h);
- hose->pci_mem_space = MCPCIA_DENSE(h);
hose->pci_config_space = MCPCIA_CONF(h);
- hose->pci_sparse_space = MCPCIA_SPARSE(h);
hose->pci_hose_index = h;
hose->pci_first_busno = 255;
hose->pci_last_busno = 0;
+
+ /* Tell userland where I/O space is located. */
+ hose->pci_sparse_io_space = MCPCIA_IO(h) - IDENT_ADDR;
+ hose->pci_sparse_mem_space = MCPCIA_SPARSE(h) - IDENT_ADDR;
+ hose->pci_dense_io_space = 0;
+ hose->pci_dense_mem_space = MCPCIA_DENSE(h) - IDENT_ADDR;
}
#if 1
#if 0
printk("polaris_init_arch(): trusting firmware for setup\n");
#endif
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = 0;
+ default_hose.pci_sparse_mem_space = 0;
+ default_hose.pci_dense_io_space = POLARIS_DENSE_IO_BASE - IDENT_ADDR;
+ default_hose.pci_dense_mem_space = POLARIS_DENSE_MEM_BASE - IDENT_ADDR;
}
int polaris_pci_clr_err(void)
#include <asm/ptrace.h>
#include <asm/system.h>
+#include <asm/pci.h>
#define __EXTERN_INLINE inline
#include <asm/io.h>
#undef __EXTERN_INLINE
#include "proto.h"
+#include "bios32.h"
/* NOTE: Herein are back-to-back mb instructions. They are magic.
One plausible explanation is that the I/O controller does not properly
ctrl1 = *(vuip)PYXIS_CTRL1; /* re-read */
}
}
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = 0;
+ default_hose.pci_sparse_mem_space = 0;
+ default_hose.pci_dense_io_space = PYXIS_BW_IO - IDENT_ADDR;
+ default_hose.pci_dense_mem_space = PYXIS_BW_MEM - IDENT_ADDR;
}
void __init
#include <asm/ptrace.h>
#include <asm/system.h>
+#include <asm/pci.h>
#define __EXTERN_INLINE
#include <asm/io.h>
#undef __EXTERN_INLINE
#include "proto.h"
+#include "bios32.h"
/*
* NOTE: Herein lie back-to-back mb instructions. They are magic.
*(vulp)T2_HAE_4 = 0; mb(); /* do not touch this */
#endif
}
+
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = T2_IO - IDENT_ADDR;
+ default_hose.pci_sparse_mem_space = T2_SPARSE_MEM - IDENT_ADDR;
+ default_hose.pci_dense_io_space = 0;
+ default_hose.pci_dense_mem_space = T2_DENSE_MEM - IDENT_ADDR;
}
#define SIC_SEIC (1UL << 33) /* System Event Clear */
"pci_addr=0x%p, type1=0x%p)\n",
bus, device_fn, where, pci_addr, type1));
- *type1 = (bus != 0);
+ *type1 = (bus != 0);
- if (hose->pci_first_busno == bus)
+ if (hose->pci_first_busno == bus)
bus = 0;
- addr = (bus << 16) | (device_fn << 8) | where;
+ addr = (bus << 16) | (device_fn << 8) | where;
addr |= hose->pci_config_space;
*pci_addr = addr;
*hose_tail = hose;
hose_tail = &hose->next;
- hose->pci_io_space = TSUNAMI_IO(index);
- hose->pci_mem_space = TSUNAMI_MEM(index);
hose->pci_config_space = TSUNAMI_CONF(index);
- hose->pci_sparse_space = 0;
hose->pci_hose_index = index;
+ /* This is for userland consumption. For some reason, the 40-bit
+ PIO bias that we use in the kernel through KSEG didn't work for
+ the page table based user mappings. So make sure we get the
+ 43-bit PIO bias. */
+ hose->pci_sparse_io_space = 0;
+ hose->pci_sparse_mem_space = 0;
+ hose->pci_dense_io_space
+ = (TSUNAMI_IO(index) & 0xffffffffff) | 0x80000000000;
+ hose->pci_dense_mem_space
+ = (TSUNAMI_MEM(index) & 0xffffffffff) | 0x80000000000;
+
switch (alpha_use_srm_setup)
{
default:
{
#ifdef NXM_MACHINE_CHECKS_ON_TSUNAMI
extern asmlinkage void entInt(void);
- unsigned long tmp;
+ unsigned long tmp;
/* Ho hum.. init_arch is called before init_IRQ, but we need to be
able to handle machine checks. So install the handler now. */
#define SIGCHLD 20
-#define NR_SYSCALLS 371
+#define NR_SYSCALLS 377
/*
* These offsets must match with alpha_mv in <asm/machvec.h>.
.quad sys_capget
.quad sys_capset
.quad sys_sendfile /* 370 */
+ .quad sys_ni_syscall
+ .quad sys_ni_syscall
+ .quad sys_ni_syscall
+ .quad sys_ni_syscall
+ .quad sys_ni_syscall /* 375 */
+ .quad sys_pciconfig_iobase
/* Return current software fp control & status bits. */
/* Note that DU doesn't verify available space here. */
- /* EV6 implements most of the bits in hardware. If
- UNDZ is not set, UNFD is maintained in software. */
- if (implver() == IMPLVER_EV6) {
- unsigned long fpcr = rdfpcr();
- w = ieee_fpcr_to_swcr(fpcr);
- if (!(fpcr & FPCR_UNDZ)) {
- w &= ~IEEE_TRAP_ENABLE_UNF;
- w |= current->tss.flags & IEEE_TRAP_ENABLE_UNF;
- }
- } else {
- /* Otherwise we are forced to do everything in sw. */
- w = current->tss.flags & IEEE_SW_MASK;
- }
-
+ w = current->tss.flags & IEEE_SW_MASK;
+ w = swcr_update_status(w, rdfpcr());
if (put_user(w, (unsigned long *) buffer))
return -EFAULT;
return 0;
{
switch (op) {
case SSI_IEEE_FP_CONTROL: {
- unsigned long swcr, fpcr, undz, ev6;
+ unsigned long swcr, fpcr;
/*
* Alpha Architecture Handbook 4.7.7.3:
* set in the trap shadow of a software-complete insn.
*/
- ev6 = (implver() == IMPLVER_EV6);
-
/* Update softare trap enable bits. */
if (get_user(swcr, (unsigned long *)buffer))
return -EFAULT;
current->tss.flags &= ~IEEE_SW_MASK;
current->tss.flags |= swcr & IEEE_SW_MASK;
- /* Update the real fpcr. Keep UNFD off if not UNDZ. */
+ /* Update the real fpcr. */
fpcr = rdfpcr();
- if(ev6) {
- undz = (fpcr & FPCR_UNDZ);
- fpcr &= (~(FPCR_MASK | FPCR_UNDZ)) | FPCR_DYN_MASK;
- }
- else {
- fpcr &= (~FPCR_MASK) | FPCR_DYN_MASK;
- }
+ fpcr &= FPCR_DYN_MASK;
fpcr |= ieee_swcr_to_fpcr(swcr);
- if(ev6 && !undz) {
- fpcr &= ~FPCR_UNFD;
- }
wrfpcr(fpcr);
-
+
+ /* If any exceptions are now unmasked, send a signal. */
+ if (((swcr & IEEE_STATUS_MASK)
+ >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr) {
+ send_sig(SIGFPE, current, 1);
+ }
+
return 0;
}
void flush_thread(void)
{
/* Arrange for each exec'ed process to start off with a clean slate
- with respect to the FPU. This is all exceptions disabled. Note
- that EV6 defines UNFD valid only with UNDZ, which we don't want
- for IEEE conformance -- so that disabled bit remains in software. */
-
+ with respect to the FPU. This is all exceptions disabled. */
current->tss.flags &= ~IEEE_SW_MASK;
- wrfpcr(FPCR_DYN_NORMAL | FPCR_INVD | FPCR_DZED | FPCR_OVFD | FPCR_INED);
+ wrfpcr(FPCR_DYN_NORMAL | ieee_swcr_to_fpcr(0));
}
void release_thread(struct task_struct *dead_task)
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/system.h>
+#include <asm/fpu.h>
#include "proto.h"
/*
* Get contents of register REGNO in task TASK.
*/
-static inline long
+static long
get_reg(struct task_struct * task, unsigned long regno)
{
+ /* Special hack for fpcr -- combine hardware and software bits. */
+ if (regno == 63) {
+ unsigned long fpcr = *get_reg_addr(task, regno);
+ unsigned long swcr = task->tss.flags & IEEE_SW_MASK;
+ swcr = swcr_update_status(swcr, fpcr);
+ return fpcr | swcr;
+ }
return *get_reg_addr(task, regno);
}
/*
* Write contents of register REGNO in task TASK.
*/
-static inline int
+static int
put_reg(struct task_struct *task, unsigned long regno, long data)
{
+ if (regno == 63) {
+ task->tss.flags = ((task->tss.flags & ~IEEE_SW_MASK)
+ | (data & IEEE_SW_MASK));
+ data = (data & FPCR_DYN_MASK) | ieee_swcr_to_fpcr(data);
+ }
*get_reg_addr(task, regno) = data;
return 0;
}
#include "irq.h"
#include "machvec.h"
+#ifdef CONFIG_PCI
+#include <asm/pci.h>
+#include "bios32.h"
+#endif
+
static void
jensen_update_irq_hw(unsigned long irq, unsigned long mask, int unmask_p)
printk(KERN_CRIT "Machine check\n");
}
+static void __init
+jensen_init_arch(void)
+{
+#ifdef CONFIG_PCI
+ /* Tell userland where I/O space is located. */
+ default_hose.pci_sparse_io_space = EISA_IO - IDENT_ADDR;
+ default_hose.pci_sparse_mem_space = EISA_MEM - IDENT_ADDR;
+ default_hose.pci_dense_io_space = 0;
+ default_hose.pci_dense_mem_space = 0;
+#endif
+}
+
/*
* The System Vector
ack_irq: generic_ack_irq,
device_interrupt: jensen_device_interrupt,
- init_arch: NULL,
+ init_arch: jensen_init_arch,
init_irq: jensen_init_irq,
init_pit: generic_init_pit,
kill_arch: generic_kill_arch,
FP_DECL_S(SA); FP_DECL_S(SB); FP_DECL_S(SR);
FP_DECL_D(DA); FP_DECL_D(DB); FP_DECL_D(DR);
- unsigned long fa, fb, fc, func, mode, src;
- unsigned long fpcw = current->tss.flags;
+ unsigned long fa, fb, fc, func, mode, src, swcr;
unsigned long res, va, vb, vc, fpcr;
__u32 insn;
mode = (insn >> 11) & 0x3;
fpcr = rdfpcr();
+ swcr = swcr_update_status(current->tss.flags, fpcr);
if (mode == 3) {
- /* Dynamic -- get rounding mode from fpcr. */
- mode = (fpcr >> FPCR_DYN_SHIFT) & 3;
+ /* Dynamic -- get rounding mode from fpcr. */
+ mode = (fpcr >> FPCR_DYN_SHIFT) & 3;
}
switch (src) {
}
FP_CMP_D(res, DA, DB, 3);
vc = 0x4000000000000000;
- /* CMPTEQ, CMPTUN don't trap on QNaN, while CMPTLT and CMPTLE do */
- if (res == 3 && ((func & 3) >= 2 || FP_ISSIGNAN_D(DA) || FP_ISSIGNAN_D(DB)))
+ /* CMPTEQ, CMPTUN don't trap on QNaN,
+ while CMPTLT and CMPTLE do */
+ if (res == 3
+ && ((func & 3) >= 2
+ || FP_ISSIGNAN_D(DA)
+ || FP_ISSIGNAN_D(DB))) {
FP_SET_EXCEPTION(FP_EX_INVALID);
+ }
switch (func) {
case FOP_FNC_CMPxUN: if (res != 3) vc = 0; break;
case FOP_FNC_CMPxEQ: if (res) vc = 0; break;
}
case FOP_FNC_CVTxQ:
- if (DB_c == FP_CLS_NAN && (_FP_FRAC_HIGH_RAW_D(DB) & _FP_QNANBIT_D))
- vc = 0; /* AAHB Table B-2 sais QNaN should not trigger INV */
- else
+ if (DB_c == FP_CLS_NAN
+ && (_FP_FRAC_HIGH_RAW_D(DB) & _FP_QNANBIT_D)) {
+ /* AAHB Table B-2 says QNaN should not trigger INV */
+ vc = 0;
+ } else
FP_TO_INT_ROUND_D(vc, DB, 64, 2);
goto done_d;
}
pack_s:
FP_PACK_SP(&vc, SR);
+ if ((_fex & FP_EX_UNDERFLOW) && (swcr & IEEE_MAP_UMZ))
+ vc = 0;
alpha_write_fp_reg_s(fc, vc);
goto done;
pack_d:
FP_PACK_DP(&vc, DR);
+ if ((_fex & FP_EX_UNDERFLOW) && (swcr & IEEE_MAP_UMZ))
+ vc = 0;
done_d:
alpha_write_fp_reg(fc, vc);
goto done;
done:
if (_fex) {
/* Record exceptions in software control word. */
- current->tss.flags
- = fpcw |= (_fex << IEEE_STATUS_TO_EXCSUM_SHIFT);
+ swcr |= (_fex << IEEE_STATUS_TO_EXCSUM_SHIFT);
+ current->tss.flags |= (_fex << IEEE_STATUS_TO_EXCSUM_SHIFT);
/* Update hardware control register */
fpcr &= (~FPCR_MASK | FPCR_DYN_MASK);
- fpcr |= ieee_swcr_to_fpcr(fpcw);
+ fpcr |= ieee_swcr_to_fpcr(swcr);
wrfpcr(fpcr);
/* Do we generate a signal? */
- if (_fex & fpcw & IEEE_TRAP_ENABLE_MASK) {
+ if (_fex & swcr & IEEE_TRAP_ENABLE_MASK) {
MOD_DEC_USE_COUNT;
return 0;
}
#define FP_EX_INEXACT IEEE_TRAP_ENABLE_INE
#define FP_EX_DENORM IEEE_TRAP_ENABLE_DNO
-#define FP_DENORM_ZERO (fpcw & IEEE_MAP_DMZ)
+#define FP_DENORM_ZERO (swcr & IEEE_MAP_DMZ)
#define FP_HANDLE_EXCEPTIONS return _fex
movl $-ENOSYS,EAX(%esp)
call SYMBOL_NAME(syscall_trace)
movl ORIG_EAX(%esp),%eax
+ cmpl $(NR_syscalls),%eax
+ jae 1f
call *SYMBOL_NAME(sys_call_table)(,%eax,4)
movl %eax,EAX(%esp) # save the return value
- call SYMBOL_NAME(syscall_trace)
+1: call SYMBOL_NAME(syscall_trace)
jmp ret_from_sys_call
badsys:
movl $-ENOSYS,EAX(%esp)
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/user.h>
+#include <linux/sys.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
{
switch (regno >> 2) {
case ORIG_EAX:
- return -EIO;
+ if(value >= NR_syscalls)
+ return -EIO;
+ break;
case FS:
if (value && (value & 3) != 3)
return -EIO;
cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);
cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);
c->x86_model_id[48] = 0;
+
+ if(c->x86_vendor == X86_VENDOR_AMD)
+ {
+ /* Set MTRR capability flag if appropriate */
+ if(boot_cpu_data.x86 == 5) {
+ if((boot_cpu_data.x86_model == 9) ||
+ ((boot_cpu_data.x86_model == 8) &&
+ (boot_cpu_data.x86_mask >= 8)))
+ c->x86_capability |= X86_FEATURE_MTRR;
+ }
- /* Set MTRR capability flag if appropriate */
- if(boot_cpu_data.x86 == 5) {
- if((boot_cpu_data.x86_model == 9) ||
- ((boot_cpu_data.x86_model == 8) &&
- (boot_cpu_data.x86_mask >= 8)))
- c->x86_capability |= X86_FEATURE_MTRR;
- }
-
- if (n >= 0x80000005){
- cpuid(0x80000005, &dummy, &dummy, &ecx, &edx);
- printk("CPU: L1 I Cache: %dK L1 D Cache: %dK\n",
- ecx>>24, edx>>24);
- c->x86_cache_size=(ecx>>24)+(edx>>24);
- }
- if (n >= 0x80000006){
- cpuid(0x80000006, &dummy, &dummy, &ecx, &edx);
- printk("CPU: L2 Cache: %dK\n", ecx>>16);
- c->x86_cache_size = ecx>>16;
+ if (n >= 0x80000005){
+ cpuid(0x80000005, &dummy, &dummy, &ecx, &edx);
+ printk("CPU: L1 I Cache: %dK L1 D Cache: %dK\n",
+ ecx>>24, edx>>24);
+ c->x86_cache_size=(ecx>>24)+(edx>>24);
+ }
+ if (n >= 0x80000006){
+ cpuid(0x80000006, &dummy, &dummy, &ecx, &edx);
+ printk("CPU: L2 Cache: %dK\n", ecx>>16);
+ c->x86_cache_size = ecx>>16;
+ }
}
-
return 1;
}
rdmsr(0xC0000082, l, h);
if((l&0x0000FFFF)==0)
{
- l=(1<<0)|(mbytes/4);
+ l=(1<<0)|((mbytes/4)<<1);
save_flags(flags);
__cli();
__asm__ __volatile__ ("wbinvd": : :"memory");
-/* $Id: sys_sparc.c,v 1.52.2.1 1999/10/04 10:36:15 davem Exp $
+/* $Id: sys_sparc.c,v 1.52.2.2 2000/03/24 00:03:22 davem Exp $
* linux/arch/sparc/kernel/sys_sparc.c
*
* This file contains various random system calls that
return -ENOSYS;
}
+/* We don't want to warn about LFS syscalls which are defined in our headers */
+asmlinkage unsigned long
+sys_lfs_syscall (void)
+{
+ return -ENOSYS;
+}
+
/* #define DEBUG_SPARC_BREAKPOINT */
asmlinkage void
-/* $Id: systbls.S,v 1.83.2.1 1999/09/22 11:37:27 jj Exp $
+/* $Id: systbls.S,v 1.83.2.2 2000/03/24 00:03:18 davem Exp $
* systbls.S: System call entry point tables for OS compatibility.
* The native Linux system call table lives here also.
*
/*40*/ .long sys_newlstat, sys_dup, sys_pipe, sys_times, sys_nis_syscall
/*45*/ .long sys_umount, sys_setgid, sys_getgid, sys_signal, sys_geteuid
/*50*/ .long sys_getegid, sys_acct, sys_nis_syscall, sys_nis_syscall, sys_ioctl
-/*55*/ .long sys_reboot, sys_nis_syscall, sys_symlink, sys_readlink, sys_execve
-/*60*/ .long sys_umask, sys_chroot, sys_newfstat, sys_nis_syscall, sys_getpagesize
+/*55*/ .long sys_reboot, sys_lfs_syscall, sys_symlink, sys_readlink, sys_execve
+/*60*/ .long sys_umask, sys_chroot, sys_newfstat, sys_lfs_syscall, sys_getpagesize
/*65*/ .long sys_msync, sys_vfork, sys_pread, sys_pwrite, sys_nis_syscall
/*70*/ .long sys_nis_syscall, sys_mmap, sys_nis_syscall, sys_munmap, sys_mprotect
-/*75*/ .long sys_nis_syscall, sys_vhangup, sys_nis_syscall, sys_nis_syscall, sys_getgroups
-/*80*/ .long sys_setgroups, sys_getpgrp, sys_nis_syscall, sys_setitimer, sys_nis_syscall
+/*75*/ .long sys_nis_syscall, sys_vhangup, sys_lfs_syscall, sys_nis_syscall, sys_getgroups
+/*80*/ .long sys_setgroups, sys_getpgrp, sys_nis_syscall, sys_setitimer, sys_lfs_syscall
/*85*/ .long sys_swapon, sys_getitimer, sys_nis_syscall, sys_sethostname, sys_nis_syscall
/*90*/ .long sys_dup2, sys_nis_syscall, sys_fcntl, sys_select, sys_nis_syscall
/*95*/ .long sys_fsync, sys_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
/*115*/ .long sys_nis_syscall, sys_gettimeofday, sys_getrusage, sys_nis_syscall, sys_getcwd
/*120*/ .long sys_readv, sys_writev, sys_settimeofday, sys_fchown, sys_fchmod
/*125*/ .long sys_nis_syscall, sys_setreuid, sys_setregid, sys_rename, sys_truncate
-/*130*/ .long sys_ftruncate, sys_flock, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
-/*135*/ .long sys_nis_syscall, sys_mkdir, sys_rmdir, sys_utimes, sys_nis_syscall
+/*130*/ .long sys_ftruncate, sys_flock, sys_lfs_syscall, sys_nis_syscall, sys_nis_syscall
+/*135*/ .long sys_nis_syscall, sys_mkdir, sys_rmdir, sys_utimes, sys_lfs_syscall
/*140*/ .long sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_getrlimit
/*145*/ .long sys_setrlimit, sys_nis_syscall, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
/*150*/ .long sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_nis_syscall
-/* $Id: sys_sparc.c,v 1.26.2.1 1999/09/22 11:37:38 jj Exp $
+/* $Id: sys_sparc.c,v 1.26.2.2 2000/03/24 00:03:27 davem Exp $
* linux/arch/sparc64/kernel/sys_sparc.c
*
* This file contains various random system calls that
return -ENOSYS;
}
+/* We don't want to warn about LFS syscalls which are defined in our headers */
+asmlinkage unsigned long
+sys_lfs_syscall (void)
+{
+ return -ENOSYS;
+}
+
/* #define DEBUG_SPARC_BREAKPOINT */
asmlinkage void
-/* $Id: systbls.S,v 1.53.2.3 2000/01/24 22:14:40 davem Exp $
+/* $Id: systbls.S,v 1.53.2.4 2000/03/24 00:03:28 davem Exp $
* systbls.S: System call entry point tables for OS compatibility.
* The native Linux system call table lives here also.
*
/*40*/ .word sys32_newlstat, sys_dup, sys_pipe, sys32_times, sys_nis_syscall
.word sys_umount, sys_setgid, sys_getgid, sys_signal, sys_geteuid
/*50*/ .word sys_getegid, sys_acct, sys_nis_syscall, sys_nis_syscall, sys32_ioctl
- .word sys_reboot, sys_nis_syscall, sys_symlink, sys_readlink, sys32_execve
-/*60*/ .word sys_umask, sys_chroot, sys32_newfstat, sys_nis_syscall, sys_getpagesize
+ .word sys_reboot, sys_lfs_syscall, sys_symlink, sys_readlink, sys32_execve
+/*60*/ .word sys_umask, sys_chroot, sys32_newfstat, sys_lfs_syscall, sys_getpagesize
.word sys_msync, sys_vfork, sys32_pread, sys32_pwrite, sys_nis_syscall
/*70*/ .word sys_nis_syscall, sys32_mmap, sys_nis_syscall, sys_munmap, sys_mprotect
- .word sys_nis_syscall, sys_vhangup, sys_nis_syscall, sys_nis_syscall, sys32_getgroups
-/*80*/ .word sys32_setgroups, sys_getpgrp, sys_nis_syscall, sys32_setitimer, sys_nis_syscall
+ .word sys_nis_syscall, sys_vhangup, sys_lfs_syscall, sys_nis_syscall, sys32_getgroups
+/*80*/ .word sys32_setgroups, sys_getpgrp, sys_nis_syscall, sys32_setitimer, sys_lfs_syscall
.word sys_swapon, sys32_getitimer, sys_nis_syscall, sys_sethostname, sys_nis_syscall
/*90*/ .word sys_dup2, sys_nis_syscall, sys32_fcntl, sys32_select, sys_nis_syscall
.word sys_fsync, sys_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
.word sys_nis_syscall, sys32_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
/*120*/ .word sys32_readv, sys32_writev, sys32_settimeofday, sys32_fchown16, sys_fchmod
.word sys_nis_syscall, sys32_setreuid, sys32_setregid, sys_rename, sys_truncate
-/*130*/ .word sys_ftruncate, sys_flock, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall
- .word sys_nis_syscall, sys_mkdir, sys_rmdir, sys32_utimes, sys_nis_syscall
+/*130*/ .word sys_ftruncate, sys_flock, sys_lfs_syscall, sys_nis_syscall, sys_nis_syscall
+ .word sys_nis_syscall, sys_mkdir, sys_rmdir, sys32_utimes, sys_lfs_syscall
/*140*/ .word sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys32_getrlimit
.word sys32_setrlimit, sys_nis_syscall, sys32_prctl, sys32_pciconfig_read, sys32_pciconfig_write
/*150*/ .word sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_nis_syscall
*/
u32 msg[5];
int *query_done = &dev->done_flag;
+
+ fsync_dev(inode->i_rdev);
+
msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
msg[1] = I2O_CMD_BLOCK_CFLUSH<<24|HOST_TID<<12|dev->tid;
msg[2] = i2ob_context|0x40000000;
iounmap(((u8 *)c->post_port)-0x40);
#ifdef CONFIG_MTRR
- if(c->bus.pci.mtrr_reg > 0)
- mtrr_del(c->bus.pci.mtrr_reg, 0, 0);
+ if(c->bus.pci.mtrr_reg0 > 0)
+ mtrr_del(c->bus.pci.mtrr_reg0, 0, 0);
+ if(c->bus.pci.mtrr_reg1 > 0)
+ mtrr_del(c->bus.pci.mtrr_reg1, 0, 0);
#endif
}
*
* TODO: Add support for polled controllers
*/
-int __init i2o_pci_install(struct pci_dev *dev)
+int i2o_pci_install(struct pci_dev *dev)
{
struct i2o_controller *c=kmalloc(sizeof(struct i2o_controller),
GFP_KERNEL);
* Enable Write Combining MTRR for IOP's memory region
*/
#ifdef CONFIG_MTRR
- c->bus.pci.mtrr_reg =
- mtrr_add(c->mem_phys, size, MTRR_TYPE_WRCOMB, 1);
+ c->bus.pci.mtrr_reg0 = mtrr_add(c->mem_phys, size, MTRR_TYPE_WRCOMB, 1);
+
+ /*
+ * If it is an INTEL i960 I/O processor then set the first 64K to Uncacheable
+ * since the region contains the Messaging unit which shouldn't be cached.
+ */
+
+ c->bus.pci.mtrr_reg1 = -1;
+
+ if(dev->vendor == PCI_VENDOR_ID_INTEL)
+ {
+ printk(KERN_INFO "i2o_pci: MTRR workaround for Intel i960 processor\n");
+ c->bus.pci.mtrr_reg1 = mtrr_add(c->mem_phys, 65536, MTRR_TYPE_UNCACHABLE, 1);
+ if(c->bus.pci.mtrr_reg1< 0)
+ {
+ printk(KERN_INFO "i2o_pci: Error in setting MTRR_TYPE_UNCACHABLE\n");
+ if(c->bus.pci.mtrr_reg0>=0)
+ {
+ mtrr_del(c->bus.pci.mtrr_reg0, 0, 0);
+ c->bus.pci.mtrr_reg0 = -1;
+ }
+ }
+ }
+
#endif
I2O_IRQ_WRITE32(c,0xFFFFFFFF);
return 0;
}
-int __init i2o_pci_scan(void)
+int i2o_pci_scan(void)
{
struct pci_dev *dev;
int count=0;
if (register_netdev(d) == 0)
n_eepro++;
+ else
+ break;
}
return n_eepro ? 0 : -ENODEV;
/* Set the copy breakpoint for the copy-only-tiny-buffer Rx method.
Lower values use more memory, but are faster. */
-#ifdef __alpha__
+#if defined(__alpha__) || defined(__sparc__)
/* force copying of all packets to avoid unaligned accesses on Alpha */
static int rx_copybreak = 1518;
#else
#if defined(__LITTLE_ENDIAN)
#define clear_suspend(cmd) ((__u16 *)&(cmd)->cmd_status)[1] &= ~0x4000
#elif defined(__BIG_ENDIAN)
-#define clear_suspend(cmd) ((__u16 *)&(cmd)->cmd_status)[0] &= ~0x4000
+#define clear_suspend(cmd) ((__u16 *)&(cmd)->cmd_status)[1] &= ~0x0040
#else
#error Unsupported byteorder
#endif
struct timer_list timer; /* Media selection timer. */
struct speedo_mc_block *mc_setup_head;/* Multicast setup frame list head. */
struct speedo_mc_block *mc_setup_tail;/* Multicast setup frame list tail. */
- int in_interrupt; /* Word-aligned dev->interrupt */
+ long in_interrupt; /* Word-aligned dev->interrupt */
char rx_mode; /* Current PROMISC/ALLMULTI setting. */
unsigned int tx_full:1; /* The Tx queue is full. */
unsigned int full_duplex:1; /* Full-duplex operation requested. */
ioaddr = pciaddr & ~3UL;
if (check_region(ioaddr, 32))
continue;
- } else if ((ioaddr = (long)ioremap(pciaddr & ~0xfUL, 0x1000)) == 0) {
+ } else
+#ifdef __sparc__
+ {
+ /* ioremap is hosed in 2.2.x on Sparc. */
+ ioaddr = pciaddr & ~0xfUL;
+ }
+#else
+ if ((ioaddr = (long)ioremap(pciaddr & ~0xfUL, 0x1000)) == 0) {
printk(KERN_INFO "Failed to map PCI address %#lx.\n",
pciaddr);
continue;
}
+#endif
if (speedo_debug > 2)
printk("Found Intel i82557 PCI Speedo at I/O %#lx, IRQ %d.\n",
ioaddr, irq);
{0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20 };
static u8 t21040_csr13[] = {2,0x0C,8,4, 4,0,0,0, 0,0,0,0, 4,0,0,0};
/* 21041 transceiver register settings: 10-T, 10-2, AUI, 10-T, 10T-FD*/
-static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
+static u16 t21041_csr13[] = { 0xEF05, 0xEF0D, 0xEF0D, 0xEF05, 0xEF05, };
static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
* A low level driver for Yamaha OPL3-SA2 and SA3 cards.
* SAx cards should work, as they are just variants of the SA3.
*
- * Copyright 1998, 1999 Scott Murray <scottm@interlog.com>
+ * Copyright 1998, 1999, 2000 Scott Murray <scott@spiteful.org>
*
* Originally based on the CS4232 driver (in cs4232.c) by Hannu Savolainen
* and others. Now incorporates code/ideas from pss.c, also by Hannu
* Scott Murray Simpler detection code should work all the time now
* (with thanks to Ben Hutchings for the heuristic),
* removed now unnecessary force option. (Jan 5, 1999)
+ * Scott Murray Updated e-mail address. (Mar 18, 2000)
*
*/
MODULE_PARM_DESC(dma2, "Set MSS (audio) second DMA channel (0, 1, 3)");
MODULE_DESCRIPTION("Module for OPL3-SA2 and SA3 sound cards (uses AD1848 MSS driver).");
-MODULE_AUTHOR("Scott Murray <scottm@interlog.com>");
+MODULE_AUTHOR("Scott Murray <scott@spiteful.org>");
EXPORT_NO_SYMBOLS;
if (elf_interpreter ||
elf_ppnt->p_filesz < 2 ||
elf_ppnt->p_filesz > PAGE_SIZE)
- goto out_free_interp;
+ goto out_free_dentry;
/* This is the program interpreter used for
* shared libraries - for now assume that this
current->personality = PER_SVR4;
interpreter_dentry = open_namei(elf_interpreter,
- 0, 0);
+ 1, 0);
current->personality = old_pers;
} else
#endif
interpreter_dentry = open_namei(elf_interpreter,
- 0, 0);
+ 1, 0);
set_fs(old_fs);
retval = PTR_ERR(interpreter_dentry);
if (IS_ERR(interpreter_dentry))
bh, offset)) {
/* On error, skip the f_pos to the
next block. */
- filp->f_pos = (filp->f_pos & (sb->s_blocksize - 1))
- + sb->s_blocksize;
+ filp->f_pos = (filp->f_pos | (sb->s_blocksize - 1))
+ + 1;
brelse (bh);
return stored;
}
bh, offset)) {
/* On error, skip the f_pos to the
next block. */
- filp->f_pos = (filp->f_pos &
+ filp->f_pos = (filp->f_pos |
(sb->s_blocksize - 1)) +
- sb->s_blocksize;
+ 1;
brelse (bh);
return stored;
}
#define TASK_ADDR_LIMIT 24
#define TASK_EXEC_DOMAIN 32
#define TASK_NEED_RESCHED 40
-#define TASK_SIZE 1064
+#define TASK_SIZE 1072
#define STACK_SIZE 16384
#define HAE_CACHE 0
#define HAE_REG 8
/*
* I/O functions:
*
- * TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264)
+ * TSUNAMI, the 21272 PCI/memory support chipset for the EV6 (21264)
* can only use linear accesses to get at PCI memory and I/O spaces.
*/
#define FPCR_DYN_PLUS (0x3UL << FPCR_DYN_SHIFT) /* towards +INF */
#define FPCR_DYN_MASK (0x3UL << FPCR_DYN_SHIFT)
-#define FPCR_MASK 0xfffe000000000000
+#define FPCR_MASK 0xffff800000000000
/*
* IEEE trap enables are implemented in software. These per-thread
IEEE_STATUS_OVF | IEEE_STATUS_UNF | \
IEEE_STATUS_INE | IEEE_STATUS_DNO)
-#define IEEE_SW_MASK (IEEE_TRAP_ENABLE_MASK | IEEE_STATUS_MASK | IEEE_MAP_MASK)
+#define IEEE_SW_MASK (IEEE_TRAP_ENABLE_MASK | \
+ IEEE_STATUS_MASK | IEEE_MAP_MASK)
#define IEEE_CURRENT_RM_SHIFT 32
#define IEEE_CURRENT_RM_MASK (3UL<<IEEE_CURRENT_RM_SHIFT)
/*
* Convert the software IEEE trap enable and status bits into the
- * hardware fpcr format.
+ * hardware fpcr format.
+ *
+ * Digital Unix engineers receive my thanks for not defining the
+ * software bits identical to the hardware bits. The chip designers
+ * receive my thanks for making all the not-implemented fpcr bits
+ * RAZ forcing us to use system calls to read/write this value.
*/
static inline unsigned long
{
unsigned long fp;
fp = (sw & IEEE_STATUS_MASK) << 35;
- fp |= sw & IEEE_STATUS_MASK ? FPCR_SUM : 0;
+ fp |= (sw & IEEE_MAP_DMZ) << 36;
+ fp |= (sw & IEEE_STATUS_MASK ? FPCR_SUM : 0);
fp |= (~sw & (IEEE_TRAP_ENABLE_INV
| IEEE_TRAP_ENABLE_DZE
| IEEE_TRAP_ENABLE_OVF)) << 48;
fp |= (~sw & (IEEE_TRAP_ENABLE_UNF | IEEE_TRAP_ENABLE_INE)) << 57;
+ fp |= (sw & IEEE_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
fp |= (~sw & IEEE_TRAP_ENABLE_DNO) << 41;
return fp;
}
{
unsigned long sw;
sw = (fp >> 35) & IEEE_STATUS_MASK;
+ sw |= (fp >> 36) & IEEE_MAP_DMZ;
sw |= (~fp >> 48) & (IEEE_TRAP_ENABLE_INV
| IEEE_TRAP_ENABLE_DZE
| IEEE_TRAP_ENABLE_OVF);
sw |= (~fp >> 57) & (IEEE_TRAP_ENABLE_UNF | IEEE_TRAP_ENABLE_INE);
+ sw |= (fp >> 47) & IEEE_MAP_UMZ;
sw |= (~fp >> 41) & IEEE_TRAP_ENABLE_DNO;
return sw;
}
never generates arithmetic faults and (b) call_pal instructions
are implied trap barriers. */
-static inline unsigned long rdfpcr(void)
+static inline unsigned long
+rdfpcr(void)
{
unsigned long tmp, ret;
+
+#if defined(__alpha_cix__) || defined(__alpha_fix__)
+ __asm__ ("ftoit $f0,%0\n\t"
+ "mf_fpcr $f0\n\t"
+ "ftoit $f0,%1\n\t"
+ "itoft %0,$f0"
+ : "=r"(tmp), "=r"(ret));
+#else
__asm__ ("stt $f0,%0\n\t"
"mf_fpcr $f0\n\t"
"stt $f0,%1\n\t"
"ldt $f0,%0"
- : "=m"(tmp), "=m"(ret));
+ : "=m"(tmp), "=m"(ret));
+#endif
+
return ret;
}
-static inline void wrfpcr(unsigned long val)
+static inline void
+wrfpcr(unsigned long val)
{
unsigned long tmp;
+
+#if defined(__alpha_cix__) || defined(__alpha_fix__)
+ __asm__ ("ftoit $f0,%0\n\t"
+ "itoft %1,$f0\n\t"
+ "mt_fpcr $f0\n\t"
+ "itoft %0,$f0"
+ : "=&r"(tmp) : "r"(val));
+#else
__asm__ __volatile__ (
"stt $f0,%0\n\t"
"ldt $f0,%1\n\t"
"mt_fpcr $f0\n\t"
"ldt $f0,%0"
: "=m"(tmp) : "m"(val));
+#endif
+}
+
+static inline unsigned long
+swcr_update_status(unsigned long swcr, unsigned long fpcr)
+{
+ /* EV6 implements most of the bits in hardware. Collect
+ the acrued exception bits from the real fpcr. */
+ if (implver() == IMPLVER_EV6) {
+ swcr &= ~IEEE_STATUS_MASK;
+ swcr |= (fpcr >> 35) & IEEE_STATUS_MASK;
+ }
+ return swcr;
}
extern unsigned long alpha_read_fp_reg (unsigned long reg);
#define GEN_FLTUND -5 /* fp underflow */
#define GEN_FLTINV -6 /* invalid fp operand */
#define GEN_FLTINE -7 /* inexact fp operand */
-#define GEN_DECOVF -8 /* decimal overflow (for COBOL??) */
+#define GEN_DECOVF -8 /* decimal overflow (for COBOL?) */
#define GEN_DECDIV -9 /* decimal division by zero */
#define GEN_DECINV -10 /* invalid decimal operand */
#define GEN_ROPRAND -11 /* reserved operand */
#define EV56_CPU 7 /* EV5.6 (21164) */
#define EV6_CPU 8 /* EV6 (21164) */
#define PCA56_CPU 9 /* PCA56 (21164PC) */
-#define PCA57_CPU 10 /* PCA57 (21164??) */
+#define PCA57_CPU 10 /* PCA57 (21164notyet) */
/*
* DEC system types for Alpha systems. Found in HWRPB.
struct linux_hose_info {
struct pci_bus pci_bus;
struct linux_hose_info *next;
- unsigned long pci_io_space;
- unsigned long pci_mem_space;
+ unsigned long pci_sparse_io_space;
+ unsigned long pci_sparse_mem_space;
+ unsigned long pci_dense_io_space;
+ unsigned long pci_dense_mem_space;
unsigned long pci_config_space;
- unsigned long pci_sparse_space;
unsigned int pci_first_busno;
unsigned int pci_last_busno;
unsigned int pci_hose_index;
#endif /* Multiple busses */
+/* Values for the `which' argument to sys_pciconfig_iobase. */
+#define IOBASE_HOSE 0
+#define IOBASE_SPARSE_MEM 1
+#define IOBASE_DENSE_MEM 2
+#define IOBASE_SPARSE_IO 3
+#define IOBASE_DENSE_IO 4
+
#endif /* __ALPHA_PCI_H */
#define __NR_capget 368
#define __NR_capset 369
#define __NR_sendfile 370
+#define __NR_setresgid 371 /* implemented in 2.3 */
+#define __NR_getresgid 372 /* implemented in 2.3 */
+#define __NR_dipc 373 /* implemented in 2.3 */
+#define __NR_pivot_root 374 /* implemented in 2.3 */
+#define __NR_mincore 375 /* implemented in 2.3 */
+#define __NR_pciconfig_iobase 376
#if defined(__LIBRARY__) && defined(__GNUC__)
{
int irq;
#ifdef CONFIG_MTRR
- int mtrr_reg;
+ int mtrr_reg0;
+ int mtrr_reg1;
#endif
};
#define wake_up_interruptible(x) __wake_up((x),TASK_INTERRUPTIBLE)
extern int in_group_p(gid_t grp);
+extern int in_egroup_p(gid_t grp);
extern void flush_signals(struct task_struct *);
extern void flush_signal_handlers(struct task_struct *);
/* filesystem internal functions */
EXPORT_SYMBOL(in_group_p);
+EXPORT_SYMBOL(in_egroup_p);
EXPORT_SYMBOL(update_atime);
EXPORT_SYMBOL(get_super);
EXPORT_SYMBOL(get_fs_type);
return 1;
}
+/* Like in_group_p, but testing against egid, not fsgid */
+
+int in_egroup_p(gid_t grp)
+{
+ if (grp != current->egid) {
+ int i = current->ngroups;
+ if (i) {
+ gid_t *groups = current->groups;
+ do {
+ if (*groups == grp)
+ goto out;
+ groups++;
+ i--;
+ } while (i);
+ }
+ return 0;
+ }
+out:
+ return 1;
+}
+
/*
* This should really be a blocking read-write lock
* rather than a semaphore. Anybody want to implement
return error;
}
-/* Like in_group_p, but testing against egid, not fsgid */
-static int in_egroup_p(gid_t grp)
-{
- if (grp != current->egid) {
- int i = current->ngroups;
- if (i) {
- gid_t *groups = current->groups;
- do {
- if (*groups == grp)
- goto out;
- groups++;
- i--;
- } while (i);
- }
- return 0;
- }
-out:
- return 1;
-}
-
/* ctl_perm does NOT grant the superuser all rights automatically, because
some sysctl variables are readonly even to root. */
* Juan Jose Ciarlante : Litl bits for 2.1
* Juan Jose Ciarlante : use ip_masq_listen()
* Juan Jose Ciarlante : use private app_data for own flag(s)
- *
+ * Bjarni R. Einarsson : Added protection against "extended FTP ALG attack"
*
*
* This program is free software; you can redistribute it and/or
* /etc/conf.modules (or /etc/modules.conf depending on your config)
* where modload will pick it up should you use modload to load your
* modules.
- *
+ *
+ * Protection against the "extended FTP ALG vulnerability".
+ * This vulnerability was reported in:
+ *
+ * http://www.securityfocus.com/templates/archive.pike?list=82&date=2000-03-08&msg=38C8C8EE.544524B1@enternet.se
+ *
+ * The protection here is very simplistic, but it at least denies access
+ * to all ports under 1024, and allows the user to specify an additional
+ * list of high ports on the insmod command line, like this:
+ * noport=x1,x2,x3, ...
+ * Up to MAX_MASQ_APP_PORTS (normally 12) ports may be specified, the
+ * default blocks access to the X server (port 6000) only.
+ *
+ * Patch by Bjarni R. Einarsson <bre@netverjar.is>. The original patch is
+ * available at: http://bre.klaki.net/programs/ip_masq_ftp.2000-03-20.diff
*/
#include <linux/config.h>
static int ports[MAX_MASQ_APP_PORTS] = {21}; /* I rely on the trailing items being set to zero */
struct ip_masq_app *masq_incarnations[MAX_MASQ_APP_PORTS];
+/*
+ * List of ports (up to MAX_MASQ_APP_PORTS) we don't allow ftp-data
+ * connections to. Default is to block connections to port 6000 (X servers).
+ * This is in addition to all ports under 1024.
+ */
+static int noport[MAX_MASQ_APP_PORTS] = {6000, 0}; /* I rely on the trailing items being set to zero */
+
/*
* Debug level
*/
#endif
MODULE_PARM(ports, "1-" __MODULE_STRING(MAX_MASQ_APP_PORTS) "i");
+MODULE_PARM(noport, "1-" __MODULE_STRING(MAX_MASQ_APP_PORTS) "i");
/* Dummy variable */
static int masq_ftp_pasv;
struct ip_masq *n_ms;
char buf[24]; /* xxx.xxx.xxx.xxx,ppp,ppp\000 */
unsigned buf_len;
- int diff;
+ int diff, i, unsafe;
skb = *skb_p;
iph = skb->nh.iph;
from = (p1<<24) | (p2<<16) | (p3<<8) | p4;
port = (p5<<8) | p6;
+ if (port < 1024)
+ {
+ IP_MASQ_DEBUG(1-debug, "Unsafe PORT %X:%X detected, ignored\n",from,port);
+ continue;
+ }
+
+ for (unsafe = i = 0; (i < MAX_MASQ_APP_PORTS) && (noport[i]); i++)
+ if (port == noport[i])
+ {
+ IP_MASQ_DEBUG(1-debug, "Unsafe PORT %X:%X detected, ignored\n",from,port);
+ unsafe = 1;
+ }
+ if (unsafe) continue;
+
IP_MASQ_DEBUG(1-debug, "PORT %X:%X detected\n",from,port);
/*
*
* Implementation of the Transmission Control Protocol(TCP).
*
- * Version: $Id: tcp.c,v 1.140.2.9 2000/02/07 20:20:00 davem Exp $
+ * Version: $Id: tcp.c,v 1.140.2.10 2000/03/21 20:54:13 davem Exp $
*
* Authors: Ross Biro, <bir7@leland.Stanford.Edu>
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
return;
/* If we've already sent a FIN, or it's a closed state, skip this. */
- if ((1 << sk->state) & (TCPF_ESTABLISHED|TCPF_SYN_RECV|TCPF_SYN_SENT)) {
+ if ((1 << sk->state) &
+ (TCPF_ESTABLISHED|TCPF_SYN_SENT|TCPF_SYN_RECV|TCPF_CLOSE_WAIT)) {
lock_sock(sk);
/* Clear out any half completed packets. FIN if needed. */
- if (tcp_close_state(sk,sk->state == TCP_CLOSE_WAIT))
+ if (tcp_close_state(sk,0))
tcp_send_fin(sk);
release_sock(sk);
return -ENOTCONN;
}
+ err = -EMSGSIZE;
+ if (len > sk->sndbuf)
+ goto out;
+
if (sock->passcred && !sk->protinfo.af_unix.addr)
unix_autobind(sock);
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