[PATCH] deleted current extras/multipath directory
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greg@kroah.com
Greg KH
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Christophe Varoqui, <christophe.varoqui@free.fr>
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LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
|
||||
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
||||
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
|
||||
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
|
||||
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
|
||||
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
|
||||
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
|
||||
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
|
||||
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
|
||||
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||
DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
Appendix: How to Apply These Terms to Your New Libraries
|
||||
|
||||
If you develop a new library, and you want it to be of the greatest
|
||||
possible use to the public, we recommend making it free software that
|
||||
everyone can redistribute and change. You can do so by permitting
|
||||
redistribution under these terms (or, alternatively, under the terms of the
|
||||
ordinary General Public License).
|
||||
|
||||
To apply these terms, attach the following notices to the library. It is
|
||||
safest to attach them to the start of each source file to most effectively
|
||||
convey the exclusion of warranty; and each file should have at least the
|
||||
"copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the library's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with this library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the library, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1990
|
||||
Ty Coon, President of Vice
|
||||
|
||||
That's all there is to it!
|
||||
|
|
@ -1,126 +0,0 @@
|
|||
2004-02-21 multipath-018
|
||||
* From the Debian SID inclusion review (Philipp Matthias Hahn)
|
||||
* use DESTDIR install prefix in the Makefile
|
||||
* add man pages for devmap_name & multipath
|
||||
* correct libsysfs.h includes
|
||||
* fork the hotplug script in its own shell
|
||||
* Sync with the kernel device mapper code as of 2.6.3-udm3
|
||||
ie. Remove the test interval parameter and its uses
|
||||
* Remove superfluous scsi parameter passed from hotplug
|
||||
* Add the man pages to the [un]install targets
|
||||
2004-02-17 multipath-017
|
||||
* remove the restrictive -f flag.
|
||||
Introduce a more generic "-m iopolicy" one.
|
||||
* remove useless "int with_sysfs" in env struct
|
||||
2004-02-04 multipath-016
|
||||
* add a GROUP_BY_SERIAL flag. This should be useful for
|
||||
controlers that activate they spare paths on simple IO
|
||||
submition with a penalty. The StorageWorks HW defaults to
|
||||
this mode, even if the MULTIBUS mode is OK.
|
||||
* remove unused sg_err.c
|
||||
* big restructuring : split devinfo.c from main.c. Export :
|
||||
* void basename (char *, char *);
|
||||
* int get_serial (int, char *);
|
||||
* int get_lun_strings (char *, char *, char *, char *);
|
||||
* int get_evpd_wwid(char *, char *);
|
||||
* long get_disk_size (char *);
|
||||
* stop passing struct env as param
|
||||
* add devmap_name proggy for udev to name devmaps as per their
|
||||
internal DM name and not only by their sysfs enum name (dm-*)
|
||||
The corresponding udev.rules line is :
|
||||
KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", NAME="%k", SYMLINK="%c"
|
||||
* remove make_dm_node fn & call. Rely on udev for this.
|
||||
* don't rely on the linux symlink in the udev/klibc dir since
|
||||
udev build doesn't use it anymore. This corrects build breakage
|
||||
2004-01-19 multipath-013
|
||||
* update the DM target synthax to the 2.6.0-udm5 style
|
||||
2003-12-29 multipath-012
|
||||
* check hotplug event refers to a block device; if not exit early
|
||||
* refresh doc
|
||||
* add the uninstall target in Makefile
|
||||
2003-12-22 multipath-010
|
||||
* tweak the install target in Makefile
|
||||
* stop passing fds as argument : this change enable a strict
|
||||
segregation of ugly 2.4 code
|
||||
* sysfs version of get_lun_strings()
|
||||
* be careful about the return of get_unique_id() since errors
|
||||
formerly caught up by if(open()) in the caller fn are now returned
|
||||
by get_unique_id()
|
||||
* send get_serial() in unused.c
|
||||
* introduce dm-simplecmd for RESUME & SUSPEND requests
|
||||
* split add_map() in setup_map() & dm-addmap()
|
||||
* setup_map() correctly submits "SUSPEND-RELOAD-RESUME or CREATE"
|
||||
sequences instead of the bogus "RELOAD or CREATE"
|
||||
* don't print .sg_dev if equal to .dev (2.6) in print_path()
|
||||
* since the kernel code handles defective paths, remove all
|
||||
code to cope with them :
|
||||
* move do_tur() to unused.c
|
||||
* remove .state from path struct
|
||||
* remove .state settings & conditionals
|
||||
* add a cmdline switch to force maps to failover mode,
|
||||
ie 1 path per priority group
|
||||
* add default policies to the whitelist array (spread io ==
|
||||
MULTIBUS / io forced to 1 path == FAILOVER)
|
||||
* move get_disk_size() call out of add_map() to coalesce()
|
||||
* comment tricky coalesce() fn
|
||||
* bogus unsused.c file renamed to unused.c
|
||||
2003-12-20 multipath-010
|
||||
* big ChangeLog update
|
||||
* start to give a little control over target params :
|
||||
introduce cmdline arg -i to control polling interval
|
||||
* cope with hotplug-style calling convention :
|
||||
ie "multipath scsi $DEVPATH" ... to avoid messing with
|
||||
online maps not concerned by an event
|
||||
* example hotplug agent to drop in /etc/hotplug.d/scsi
|
||||
* revert the run & resched patch : unless someone proves me
|
||||
wrong, this was overdesigned
|
||||
* move commented out functions in unused.c
|
||||
* update multipath target params to "udm[23] style"
|
||||
* mp target now supports nr_path == 1, so do we
|
||||
* add gratuitous free()
|
||||
* push version forward
|
||||
2003-12-15 multipath-009
|
||||
* Make the HW-specific get_unique_id switch pretty
|
||||
* Prepare to field-test by whitelisting all known fibre array,
|
||||
try to fetch WWID from the standard EVPD 0x83 off 8 for everyone
|
||||
* configure the multipath target with round-robin path selector and
|
||||
conservative default for a start (udm1 style) :
|
||||
yes it makes this release the firstreally useful one.
|
||||
* temporarily disable map creation for single path device
|
||||
due to current restrictive defaults in the kernel target.
|
||||
Sistina should work it out.
|
||||
* correct the strncmp logic in blacklist function.
|
||||
* update the Makefiles to autodetect libgcc.a & gcc includes
|
||||
"ulibc-style". Factorisation of udevdirs & others niceties
|
||||
* drop a hint about absent /dev/sd? on failed open()
|
||||
* implement a reschedule flag in /var/run.
|
||||
Last thing the prog do before exit is check if a call to multipath
|
||||
was done (but canceled by /var/run/multipath.run check) during its
|
||||
execution. If so restart themain loop.
|
||||
* implement a blacklist of sysfs bdev to not bother with for now
|
||||
(hd,md, dm, sr, scd, ram, raw).
|
||||
This avoid sending SG_IO to unappropiate devices.
|
||||
* Adds a /var/run/multipath.run handling to avoid simultaneous runs.
|
||||
* Remove a commented-out "printf"
|
||||
* drop a libdevmapper copy in extras/multipath;
|
||||
maybe discussions w/Sistina folks will bring a better solution in the future.
|
||||
* drop a putchar usage in libdevmapper to compile cleanly with klibc
|
||||
* drop another such usage of my own in main.c
|
||||
* massage the Makefile to compile libdevmapper against klibc
|
||||
* use "ld" to produce the binary rather than "gcc -static"
|
||||
* stop being stupid w/ uneeded major, minor & dev in main.c:dm_mk_node()
|
||||
* reverse to creating striped target for now because the multipath target
|
||||
is more hairy than expected initialy
|
||||
* push the version code to 009 to be in synch w/ udev
|
||||
2003-11-27 multipath-007
|
||||
* removes sg_err.[ch] deps
|
||||
* makes sure the core code play nice with klibc
|
||||
* port the sysfs calls to dlist helpers
|
||||
* links against udev's sysfs (need libsysfs.a & dlist.a)
|
||||
* finally define DM_TARGET as "multipath" as Joe posted the code today (not tested yet)
|
||||
* push version forward (do you want it in sync with udev version?)
|
||||
2003-11-19
|
||||
* merged in udev-006 tree
|
||||
2003-09-18 Christophe Varoqui <christophe.varoqui@free.fr>
|
||||
* multipath 0.0.1 released.
|
||||
* Initial release.
|
||||
|
|
@ -1,80 +0,0 @@
|
|||
# Makefile
|
||||
#
|
||||
# Copyright (C) 2003 Christophe Varoqui, <christophe.varoqui@free.fr>
|
||||
|
||||
EXEC = multipath
|
||||
|
||||
prefix =
|
||||
exec_prefix = ${prefix}
|
||||
bindir = ${exec_prefix}/sbin
|
||||
udevdir = ../..
|
||||
klibcdir = $(udevdir)/klibc
|
||||
sysfsdir = $(udevdir)/libsysfs
|
||||
mandir = /usr/share/man/man8
|
||||
|
||||
CC = gcc
|
||||
GZIP = /bin/gzip -c
|
||||
|
||||
GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
|
||||
KERNEL_DIR = /lib/modules/${shell uname -r}/build
|
||||
CFLAGS = -pipe -g -O2 -Wall -Wunused -Wstrict-prototypes -nostdinc \
|
||||
-I$(klibcdir)/klibc/include -I$(klibcdir)/klibc/include/bits32 \
|
||||
-I$(GCCINCDIR) -I$(KERNEL_DIR)/include -I$(sysfsdir) -I.
|
||||
|
||||
OBJS = devinfo.o main.o
|
||||
CRT0 = ../../klibc/klibc/crt0.o
|
||||
LIB = ../../klibc/klibc/libc.a
|
||||
LIBGCC := $(shell $(CC) -print-libgcc-file-name )
|
||||
|
||||
DMOBJS = libdevmapper/libdm-common.o libdevmapper/ioctl/libdevmapper.o
|
||||
SYSFSOBJS = ../../libsysfs/dlist.o ../../libsysfs/sysfs_bus.o \
|
||||
../../libsysfs/sysfs_class.o ../../libsysfs/sysfs_device.o \
|
||||
../../libsysfs/sysfs_dir.o ../../libsysfs/sysfs_driver.o \
|
||||
../../libsysfs/sysfs_utils.o
|
||||
|
||||
SUBDIRS = libdevmapper
|
||||
|
||||
recurse:
|
||||
@for dir in $(SUBDIRS); do\
|
||||
$(MAKE) KERNEL_DIR=$(KERNEL_DIR) -C $$dir ; \
|
||||
done
|
||||
$(MAKE) $(EXEC)
|
||||
$(MAKE) devmap_name
|
||||
|
||||
all: recurse
|
||||
@echo ""
|
||||
@echo "Make complete"
|
||||
|
||||
$(EXEC): $(OBJS)
|
||||
$(LD) -o $(EXEC) $(CRT0) $(OBJS) $(SYSFSOBJS) $(DMOBJS) $(LIB) $(LIBGCC)
|
||||
strip $(EXEC)
|
||||
$(GZIP) $(EXEC).8 > $(EXEC).8.gz
|
||||
|
||||
devmap_name: devmap_name.o
|
||||
$(LD) -o devmap_name $(CRT0) devmap_name.o $(DMOBJS) $(LIB) $(LIBGCC)
|
||||
strip devmap_name
|
||||
$(GZIP) devmap_name.8 > devmap_name.8.gz
|
||||
|
||||
clean:
|
||||
rm -f core *.o $(EXEC) devmap_name *.gz
|
||||
$(MAKE) -C libdevmapper clean
|
||||
|
||||
install:
|
||||
install -d $(DESTDIR)$(bindir)
|
||||
install -m 755 $(EXEC) $(DESTDIR)$(bindir)/
|
||||
install -m 755 devmap_name $(DESTDIR)$(bindir)/
|
||||
install -d $(DESTDIR)/etc/hotplug.d/scsi/
|
||||
install -m 755 multipath.hotplug $(DESTDIR)/etc/hotplug.d/scsi/
|
||||
install -d $(DESTDIR)$(mandir)
|
||||
install -m 644 devmap_name.8.gz $(DESTDIR)$(mandir)
|
||||
install -m 644 multipath.8.gz $(DESTDIR)$(mandir)
|
||||
|
||||
uninstall:
|
||||
rm $(DESTDIR)/etc/hotplug.d/scsi/multipath.hotplug
|
||||
rm $(DESTDIR)$(bindir)/$(EXEC)
|
||||
rm $(DESTDIR)$(bindir)/devmap_name
|
||||
rm $(DESTDIR)$(mandir)/devmap_name.8.gz
|
||||
rm $(DESTDIR)$(mandir)/multipath.8.gz
|
||||
|
||||
# Code dependencies
|
||||
main.o: main.c main.h sg_include.h devinfo.h
|
||||
|
|
@ -1,90 +0,0 @@
|
|||
Dependancies :
|
||||
==============
|
||||
|
||||
o libdevmapper : comes with device-mapper-XXXX.tar.gz
|
||||
See www.sistina.com
|
||||
This lib has been dropped in the multipath tree
|
||||
o libsysfs : comes with sysutils or udev
|
||||
See ftp.kernel.org/pub/linux/utils/kernel/hotplug/
|
||||
o Linux kernel 2.6.0 with udm5 patchset
|
||||
http://people.sistina.com/~thornber/dm/
|
||||
o udev
|
||||
See ftp.kernel.org/pub/linux/utils/kernel/hotplug/
|
||||
|
||||
How it works :
|
||||
==============
|
||||
|
||||
Fill the all_paths array. Each path store this info :
|
||||
|
||||
struct path {
|
||||
char dev[FILE_NAME_SIZE];
|
||||
char sg_dev[FILE_NAME_SIZE];
|
||||
struct scsi_idlun scsi_id;
|
||||
struct sg_id sg_id;
|
||||
int state;
|
||||
char wwid[WWID_SIZE];
|
||||
};
|
||||
|
||||
scsi_id, sg_dev and sg_id are only really useful for 2.4
|
||||
kernels, for which SG cmnds must go through sg devs.
|
||||
In 2.5+ we have the nice opportunity to send SG cmnds
|
||||
through SCSI bdevs.
|
||||
|
||||
For 2.4 compat, we pivot on idlun tupple to map sg devs
|
||||
to SCSI bdevs.
|
||||
|
||||
2.4 does not do device enumeration, so we must scan a
|
||||
defined number of sg devs and scsi bdevs. Good enough.
|
||||
In 2.5+, we rely on libsysfs (sysutils) to access to
|
||||
sysfs device enums.
|
||||
|
||||
the wwid is retrieved by a switch fonction. Only White
|
||||
Listed HW can filled this field. For now every FC array
|
||||
HW listed in kernel's devinfo.c is White Listed, assuming
|
||||
the WWID is stored is the SCSI-3 standard 0x83 EVPD page.
|
||||
|
||||
When all_paths is filled, we coalesce the paths and store
|
||||
the result in mp array. Each mp is a struct like this :
|
||||
|
||||
struct multipath {
|
||||
char wwid[WWID_SIZE];
|
||||
int npaths;
|
||||
int pindex[MAX_MP_PATHS];
|
||||
};
|
||||
|
||||
When mp is filled, the device maps are fed to the kernel
|
||||
through libdevmapper.
|
||||
|
||||
The naming of the corresponding block device is handeld
|
||||
by udev with the help of the devmap_name proggy. It is
|
||||
called by the following rule in /etc/udev/udev.rules :
|
||||
KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", \
|
||||
NAME="%k", SYMLINK="%c"
|
||||
|
||||
Notes :
|
||||
=======
|
||||
|
||||
o On 2.4, make sure you have enough /dev/sg* nodes
|
||||
(/dev/MAKEDEV if necesary). Same goes for /dev/sd*
|
||||
|
||||
o path coalescing relies on a path unique id being found.
|
||||
This unique id, lacking a standard method, is vendor
|
||||
specific. A switch function (get_unique_id) is present
|
||||
and an example function is provided for storageworks
|
||||
arrays (get_evpd_wwid). Feel free to enrich
|
||||
with hardware you have at hand :)
|
||||
|
||||
o The kernel does NOT manage properly ghosts paths
|
||||
with StorageWorks HW. Seems nobody cares after a load
|
||||
of posts to linux-scsi.
|
||||
|
||||
o 2.4.21 version of DM does not like even segment size.
|
||||
if you enconter pbs with this, upgrade DM.
|
||||
|
||||
Credits :
|
||||
=========
|
||||
|
||||
o Heavy cut'n paste from sg_utils. Thanks goes to D.
|
||||
Gilbert.
|
||||
o Light cut'n paste from dmsetup. Thanks Joe Thornber.
|
||||
o Greg KH for the nice sysfs API.
|
||||
|
|
@ -1 +0,0 @@
|
|||
0.0.5
|
||||
|
|
@ -1,204 +0,0 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sysfs/libsysfs.h>
|
||||
#include "devinfo.h"
|
||||
#include "sg_include.h"
|
||||
|
||||
#define FILE_NAME_SIZE 255
|
||||
|
||||
void
|
||||
basename(char * str1, char * str2)
|
||||
{
|
||||
char *p = str1 + (strlen(str1) - 1);
|
||||
|
||||
while (*--p != '/')
|
||||
continue;
|
||||
strcpy(str2, ++p);
|
||||
}
|
||||
|
||||
static int
|
||||
do_inq(int sg_fd, int cmddt, int evpd, unsigned int pg_op,
|
||||
void *resp, int mx_resp_len, int noisy)
|
||||
{
|
||||
unsigned char inqCmdBlk[INQUIRY_CMDLEN] =
|
||||
{ INQUIRY_CMD, 0, 0, 0, 0, 0 };
|
||||
unsigned char sense_b[SENSE_BUFF_LEN];
|
||||
struct sg_io_hdr io_hdr;
|
||||
|
||||
if (cmddt)
|
||||
inqCmdBlk[1] |= 2;
|
||||
if (evpd)
|
||||
inqCmdBlk[1] |= 1;
|
||||
inqCmdBlk[2] = (unsigned char) pg_op;
|
||||
inqCmdBlk[4] = (unsigned char) mx_resp_len;
|
||||
memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
|
||||
io_hdr.interface_id = 'S';
|
||||
io_hdr.cmd_len = sizeof (inqCmdBlk);
|
||||
io_hdr.mx_sb_len = sizeof (sense_b);
|
||||
io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
|
||||
io_hdr.dxfer_len = mx_resp_len;
|
||||
io_hdr.dxferp = resp;
|
||||
io_hdr.cmdp = inqCmdBlk;
|
||||
io_hdr.sbp = sense_b;
|
||||
io_hdr.timeout = DEF_TIMEOUT;
|
||||
|
||||
if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) {
|
||||
perror("SG_IO (inquiry) error");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* treat SG_ERR here to get rid of sg_err.[ch] */
|
||||
io_hdr.status &= 0x7e;
|
||||
if ((0 == io_hdr.status) && (0 == io_hdr.host_status) &&
|
||||
(0 == io_hdr.driver_status))
|
||||
return 0;
|
||||
if ((SCSI_CHECK_CONDITION == io_hdr.status) ||
|
||||
(SCSI_COMMAND_TERMINATED == io_hdr.status) ||
|
||||
(SG_ERR_DRIVER_SENSE == (0xf & io_hdr.driver_status))) {
|
||||
if (io_hdr.sbp && (io_hdr.sb_len_wr > 2)) {
|
||||
int sense_key;
|
||||
unsigned char * sense_buffer = io_hdr.sbp;
|
||||
if (sense_buffer[0] & 0x2)
|
||||
sense_key = sense_buffer[1] & 0xf;
|
||||
else
|
||||
sense_key = sense_buffer[2] & 0xf;
|
||||
if(RECOVERED_ERROR == sense_key)
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
int
|
||||
get_serial (char * str, char * devname)
|
||||
{
|
||||
int fd;
|
||||
int len;
|
||||
char buff[MX_ALLOC_LEN + 1];
|
||||
|
||||
if ((fd = open(devname, O_RDONLY)) < 0)
|
||||
return 0;
|
||||
|
||||
if (0 == do_inq(fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0)) {
|
||||
len = buff[3];
|
||||
if (len > 0) {
|
||||
memcpy(str, buff + 4, len);
|
||||
buff[len] = '\0';
|
||||
}
|
||||
close(fd);
|
||||
return 1;
|
||||
}
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
get_lun_strings(char * vendor_id, char * product_id, char * rev, char * devname)
|
||||
{
|
||||
int fd;
|
||||
char buff[36];
|
||||
char attr_path[FILE_NAME_SIZE];
|
||||
char sysfs_path[FILE_NAME_SIZE];
|
||||
char basedev[FILE_NAME_SIZE];
|
||||
|
||||
if (0 == sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) {
|
||||
/* sysfs style */
|
||||
basename(devname, basedev);
|
||||
|
||||
sprintf(attr_path, "%s/block/%s/device/vendor",
|
||||
sysfs_path, basedev);
|
||||
if (0 > sysfs_read_attribute_value(attr_path,
|
||||
vendor_id, 8)) return 0;
|
||||
|
||||
sprintf(attr_path, "%s/block/%s/device/model",
|
||||
sysfs_path, basedev);
|
||||
if (0 > sysfs_read_attribute_value(attr_path,
|
||||
product_id, 16)) return 0;
|
||||
|
||||
sprintf(attr_path, "%s/block/%s/device/rev",
|
||||
sysfs_path, basedev);
|
||||
if (0 > sysfs_read_attribute_value(attr_path,
|
||||
rev, 4)) return 0;
|
||||
} else {
|
||||
/* ioctl style */
|
||||
if ((fd = open(devname, O_RDONLY)) < 0)
|
||||
return 0;
|
||||
if (0 != do_inq(fd, 0, 0, 0, buff, 36, 1))
|
||||
return 0;
|
||||
memcpy(vendor_id, &buff[8], 8);
|
||||
memcpy(product_id, &buff[16], 16);
|
||||
memcpy(rev, &buff[32], 4);
|
||||
close(fd);
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
sprint_wwid(char * buff, const char * str)
|
||||
{
|
||||
int i;
|
||||
const char *p;
|
||||
char *cursor;
|
||||
unsigned char c;
|
||||
|
||||
p = str;
|
||||
cursor = buff;
|
||||
for (i = 0; i <= WWID_SIZE / 2 - 1; i++) {
|
||||
c = *p++;
|
||||
sprintf(cursor, "%.2x", (int) (unsigned char) c);
|
||||
cursor += 2;
|
||||
}
|
||||
buff[WWID_SIZE - 1] = '\0';
|
||||
}
|
||||
|
||||
/* get EVPD page 0x83 off 8 */
|
||||
/* tested ok with StorageWorks */
|
||||
int
|
||||
get_evpd_wwid(char * devname, char * wwid)
|
||||
{
|
||||
int fd;
|
||||
char buff[64];
|
||||
|
||||
if ((fd = open(devname, O_RDONLY)) < 0)
|
||||
return 0;
|
||||
|
||||
if (0 == do_inq(fd, 0, 1, 0x83, buff, sizeof (buff), 1)) {
|
||||
sprint_wwid(wwid, &buff[8]);
|
||||
close(fd);
|
||||
return 1; /* success */
|
||||
}
|
||||
close(fd);
|
||||
return 0; /* not good */
|
||||
}
|
||||
|
||||
long
|
||||
get_disk_size (char * devname) {
|
||||
long size;
|
||||
int fd;
|
||||
char attr_path[FILE_NAME_SIZE];
|
||||
char sysfs_path[FILE_NAME_SIZE];
|
||||
char buff[FILE_NAME_SIZE];
|
||||
char basedev[FILE_NAME_SIZE];
|
||||
|
||||
if (0 == sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) {
|
||||
basename(devname, basedev);
|
||||
sprintf(attr_path, "%s/block/%s/size",
|
||||
sysfs_path, basedev);
|
||||
if (0 > sysfs_read_attribute_value(attr_path, buff,
|
||||
FILE_NAME_SIZE * sizeof(char)))
|
||||
return -1;
|
||||
size = atoi(buff);
|
||||
return size;
|
||||
} else {
|
||||
if ((fd = open(devname, O_RDONLY)) < 0)
|
||||
return -1;
|
||||
if(!ioctl(fd, BLKGETSIZE, &size))
|
||||
return size;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
|
@ -1,19 +0,0 @@
|
|||
#define INQUIRY_CMDLEN 6
|
||||
#define INQUIRY_CMD 0x12
|
||||
#define SENSE_BUFF_LEN 32
|
||||
#define DEF_TIMEOUT 60000
|
||||
#define RECOVERED_ERROR 0x01
|
||||
#define MX_ALLOC_LEN 255
|
||||
#define WWID_SIZE 33
|
||||
#define BLKGETSIZE _IO(0x12,96)
|
||||
|
||||
/* exerpt from "sg_err.h" */
|
||||
#define SCSI_CHECK_CONDITION 0x2
|
||||
#define SCSI_COMMAND_TERMINATED 0x22
|
||||
#define SG_ERR_DRIVER_SENSE 0x08
|
||||
|
||||
void basename (char *, char *);
|
||||
int get_serial (char *, char *);
|
||||
int get_lun_strings (char *, char *, char *, char *);
|
||||
int get_evpd_wwid(char *, char *);
|
||||
long get_disk_size (char *);
|
||||
|
|
@ -1,30 +0,0 @@
|
|||
.TH DEVMAP_NAME 8 "February 2004" "" "Linux Administrator's Manual"
|
||||
.SH NAME
|
||||
devmap_name \- Query device-mapper name
|
||||
.SH SYNOPSIS
|
||||
.BI devmap_name " major minor"
|
||||
.SH DESCRIPTION
|
||||
.B devmap_name
|
||||
queries the device-mapper for the name for the device
|
||||
specified by
|
||||
.I major
|
||||
and
|
||||
.I minor
|
||||
number.
|
||||
.br
|
||||
.B devmap_name
|
||||
can be called from
|
||||
.B udev
|
||||
by the following rule in
|
||||
.IR /etc/udev/udev.rules :
|
||||
.sp
|
||||
.nf
|
||||
KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", \\
|
||||
NAME="%k", SYMLINK="%c"
|
||||
.fi
|
||||
.SH "SEE ALSO"
|
||||
.BR udev (8),
|
||||
.BR dmsetup (8)
|
||||
.SH AUTHORS
|
||||
.B devmap_name
|
||||
was developed by Christophe Varoqui, <christophe.varoqui@free.fr> and others.
|
||||
|
|
@ -1,60 +0,0 @@
|
|||
#include "libdevmapper/libdevmapper.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <ctype.h>
|
||||
#include <linux/kdev_t.h>
|
||||
|
||||
static void usage(char * progname) {
|
||||
fprintf(stderr, "usage : %s major minor\n", progname);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int r = 0;
|
||||
struct dm_names *names;
|
||||
unsigned next = 0;
|
||||
int major, minor;
|
||||
|
||||
/* sanity check */
|
||||
if (argc != 3)
|
||||
usage(argv[0]);
|
||||
|
||||
major = atoi(argv[1]);
|
||||
minor = atoi(argv[2]);
|
||||
|
||||
struct dm_task *dmt;
|
||||
|
||||
if (!(dmt = dm_task_create(DM_DEVICE_LIST)))
|
||||
return 0;
|
||||
|
||||
if (!dm_task_run(dmt))
|
||||
goto out;
|
||||
|
||||
if (!(names = dm_task_get_names(dmt)))
|
||||
goto out;
|
||||
|
||||
if (!names->dev) {
|
||||
printf("No devices found\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
do {
|
||||
names = (void *) names + next;
|
||||
if ((int) MAJOR(names->dev) == major &&
|
||||
(int) MINOR(names->dev) == minor) {
|
||||
printf("%s\n", names->name);
|
||||
goto out;
|
||||
}
|
||||
next = names->next;
|
||||
} while (next);
|
||||
|
||||
/* No correspondance found */
|
||||
r = 1;
|
||||
|
||||
out:
|
||||
dm_task_destroy(dmt);
|
||||
return r;
|
||||
}
|
||||
|
||||
|
|
@ -1,22 +0,0 @@
|
|||
# Makefile
|
||||
#
|
||||
# Copyright (C) 2003 Christophe Varoqui, <christophe.varoqui@free.fr>
|
||||
|
||||
CC = gcc
|
||||
udevdir = ../../..
|
||||
klibcdir = $(udevdir)/klibc
|
||||
|
||||
CC = gcc
|
||||
GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
|
||||
CFLAGS = -pipe -g -O2 -Wall -Wunused -Wstrict-prototypes -nostdinc \
|
||||
-I$(klibcdir)/klibc/include -I$(klibcdir)/klibc/include/bits32 \
|
||||
-I$(GCCINCDIR) -I$(KERNEL_DIR)/include -I. -Iioctl
|
||||
|
||||
OBJS = ioctl/libdevmapper.o libdm-common.o
|
||||
|
||||
all: $(OBJS)
|
||||
@echo ""
|
||||
@echo "Make complete"
|
||||
|
||||
clean:
|
||||
rm -f core *.o ioctl/*.o ioctl/*.so
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -1,111 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_LIBDM_COMPAT_H
|
||||
#define _LINUX_LIBDM_COMPAT_H
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <linux/dm-ioctl.h>
|
||||
#include <linux/kdev_t.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
struct dm_task;
|
||||
struct dm_info;
|
||||
|
||||
/*
|
||||
* Old versions of structures for backwards compatibility.
|
||||
*/
|
||||
|
||||
struct dm_ioctl_v1 {
|
||||
uint32_t version[3]; /* in/out */
|
||||
uint32_t data_size; /* total size of data passed in
|
||||
* including this struct */
|
||||
|
||||
uint32_t data_start; /* offset to start of data
|
||||
* relative to start of this struct */
|
||||
|
||||
int32_t target_count; /* in/out */
|
||||
int32_t open_count; /* out */
|
||||
uint32_t flags; /* in/out */
|
||||
|
||||
__kernel_dev_t dev; /* in/out */
|
||||
|
||||
char name[DM_NAME_LEN]; /* device name */
|
||||
char uuid[DM_UUID_LEN]; /* unique identifier for
|
||||
* the block device */
|
||||
};
|
||||
|
||||
struct dm_target_spec_v1 {
|
||||
int32_t status; /* used when reading from kernel only */
|
||||
uint64_t sector_start;
|
||||
uint32_t length;
|
||||
uint32_t next;
|
||||
|
||||
char target_type[DM_MAX_TYPE_NAME];
|
||||
|
||||
};
|
||||
|
||||
struct dm_target_deps_v1 {
|
||||
uint32_t count;
|
||||
|
||||
__kernel_dev_t dev[0]; /* out */
|
||||
};
|
||||
|
||||
enum {
|
||||
/* Top level cmds */
|
||||
DM_VERSION_CMD_V1 = 0,
|
||||
DM_REMOVE_ALL_CMD_V1,
|
||||
|
||||
/* device level cmds */
|
||||
DM_DEV_CREATE_CMD_V1,
|
||||
DM_DEV_REMOVE_CMD_V1,
|
||||
DM_DEV_RELOAD_CMD_V1,
|
||||
DM_DEV_RENAME_CMD_V1,
|
||||
DM_DEV_SUSPEND_CMD_V1,
|
||||
DM_DEV_DEPS_CMD_V1,
|
||||
DM_DEV_STATUS_CMD_V1,
|
||||
|
||||
/* target level cmds */
|
||||
DM_TARGET_STATUS_CMD_V1,
|
||||
DM_TARGET_WAIT_CMD_V1,
|
||||
};
|
||||
|
||||
#define DM_VERSION_V1 _IOWR(DM_IOCTL, DM_VERSION_CMD_V1, struct dm_ioctl)
|
||||
#define DM_REMOVE_ALL_V1 _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD_V1, struct dm_ioctl)
|
||||
|
||||
#define DM_DEV_CREATE_V1 _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_REMOVE_V1 _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_RELOAD_V1 _IOWR(DM_IOCTL, DM_DEV_RELOAD_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_SUSPEND_V1 _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_RENAME_V1 _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_DEPS_V1 _IOWR(DM_IOCTL, DM_DEV_DEPS_CMD_V1, struct dm_ioctl)
|
||||
#define DM_DEV_STATUS_V1 _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD_V1, struct dm_ioctl)
|
||||
|
||||
#define DM_TARGET_STATUS_V1 _IOWR(DM_IOCTL, DM_TARGET_STATUS_CMD_V1, struct dm_ioctl)
|
||||
#define DM_TARGET_WAIT_V1 _IOWR(DM_IOCTL, DM_TARGET_WAIT_CMD_V1, struct dm_ioctl)
|
||||
|
||||
/* *INDENT-OFF* */
|
||||
static struct cmd_data _cmd_data_v1[] = {
|
||||
{ "create", DM_DEV_CREATE_V1, {1, 0, 0} },
|
||||
{ "reload", DM_DEV_RELOAD_V1, {1, 0, 0} },
|
||||
{ "remove", DM_DEV_REMOVE_V1, {1, 0, 0} },
|
||||
{ "remove_all", DM_REMOVE_ALL_V1, {1, 0, 0} },
|
||||
{ "suspend", DM_DEV_SUSPEND_V1, {1, 0, 0} },
|
||||
{ "resume", DM_DEV_SUSPEND_V1, {1, 0, 0} },
|
||||
{ "info", DM_DEV_STATUS_V1, {1, 0, 0} },
|
||||
{ "deps", DM_DEV_DEPS_V1, {1, 0, 0} },
|
||||
{ "rename", DM_DEV_RENAME_V1, {1, 0, 0} },
|
||||
{ "version", DM_VERSION_V1, {1, 0, 0} },
|
||||
{ "status", DM_TARGET_STATUS_V1, {1, 0, 0} },
|
||||
{ "table", DM_TARGET_STATUS_V1, {1, 0, 0} },
|
||||
{ "waitevent", DM_TARGET_WAIT_V1, {1, 0, 0} },
|
||||
{ "names", 0, {4, 0, 0} },
|
||||
{ "clear", 0, {4, 0, 0} },
|
||||
{ "mknodes", 0, {4, 0, 0} },
|
||||
};
|
||||
/* *INDENT-ON* */
|
||||
|
||||
#endif
|
||||
|
|
@ -1,51 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#ifndef LIB_DMTARGETS_H
|
||||
#define LIB_DMTARGETS_H
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
struct dm_ioctl;
|
||||
struct dm_ioctl_v1;
|
||||
|
||||
struct target {
|
||||
uint64_t start;
|
||||
uint64_t length;
|
||||
char *type;
|
||||
char *params;
|
||||
|
||||
struct target *next;
|
||||
};
|
||||
|
||||
struct dm_task {
|
||||
int type;
|
||||
char *dev_name;
|
||||
|
||||
struct target *head, *tail;
|
||||
|
||||
int read_only;
|
||||
uint32_t event_nr;
|
||||
int major;
|
||||
int minor;
|
||||
union {
|
||||
struct dm_ioctl *v4;
|
||||
struct dm_ioctl_v1 *v1;
|
||||
} dmi;
|
||||
char *newname;
|
||||
|
||||
char *uuid;
|
||||
};
|
||||
|
||||
struct cmd_data {
|
||||
const char *name;
|
||||
const int cmd;
|
||||
const int version[3];
|
||||
};
|
||||
|
||||
int dm_check_version(void);
|
||||
|
||||
#endif
|
||||
|
|
@ -1,147 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#ifndef LIB_DEVICE_MAPPER_H
|
||||
#define LIB_DEVICE_MAPPER_H
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef linux
|
||||
# include <linux/types.h>
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Since it is quite laborious to build the ioctl
|
||||
* arguments for the device-mapper people are
|
||||
* encouraged to use this library.
|
||||
*
|
||||
* You will need to build a struct dm_task for
|
||||
* each ioctl command you want to execute.
|
||||
*/
|
||||
|
||||
typedef void (*dm_log_fn) (int level, const char *file, int line,
|
||||
const char *f, ...);
|
||||
|
||||
/*
|
||||
* The library user may wish to register their own
|
||||
* logging function, by default errors go to
|
||||
* stderr.
|
||||
*/
|
||||
void dm_log_init(dm_log_fn fn);
|
||||
void dm_log_init_verbose(int level);
|
||||
|
||||
enum {
|
||||
DM_DEVICE_CREATE,
|
||||
DM_DEVICE_RELOAD,
|
||||
DM_DEVICE_REMOVE,
|
||||
DM_DEVICE_REMOVE_ALL,
|
||||
|
||||
DM_DEVICE_SUSPEND,
|
||||
DM_DEVICE_RESUME,
|
||||
|
||||
DM_DEVICE_INFO,
|
||||
DM_DEVICE_DEPS,
|
||||
DM_DEVICE_RENAME,
|
||||
|
||||
DM_DEVICE_VERSION,
|
||||
|
||||
DM_DEVICE_STATUS,
|
||||
DM_DEVICE_TABLE,
|
||||
DM_DEVICE_WAITEVENT,
|
||||
|
||||
DM_DEVICE_LIST,
|
||||
|
||||
DM_DEVICE_CLEAR,
|
||||
|
||||
DM_DEVICE_MKNODES
|
||||
};
|
||||
|
||||
struct dm_task;
|
||||
|
||||
struct dm_task *dm_task_create(int type);
|
||||
void dm_task_destroy(struct dm_task *dmt);
|
||||
|
||||
int dm_task_set_name(struct dm_task *dmt, const char *name);
|
||||
int dm_task_set_uuid(struct dm_task *dmt, const char *uuid);
|
||||
|
||||
/*
|
||||
* Retrieve attributes after an info.
|
||||
*/
|
||||
struct dm_info {
|
||||
int exists;
|
||||
int suspended;
|
||||
int live_table;
|
||||
int inactive_table;
|
||||
int32_t open_count;
|
||||
uint32_t event_nr;
|
||||
uint32_t major;
|
||||
uint32_t minor; /* minor device number */
|
||||
int read_only; /* 0:read-write; 1:read-only */
|
||||
|
||||
int32_t target_count;
|
||||
};
|
||||
|
||||
struct dm_deps {
|
||||
uint32_t count;
|
||||
uint32_t filler;
|
||||
uint64_t device[0];
|
||||
};
|
||||
|
||||
struct dm_names {
|
||||
uint64_t dev;
|
||||
uint32_t next; /* Offset to next struct from start of this struct */
|
||||
char name[0];
|
||||
};
|
||||
|
||||
int dm_get_library_version(char *version, size_t size);
|
||||
int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size);
|
||||
int dm_task_get_info(struct dm_task *dmt, struct dm_info *dmi);
|
||||
const char *dm_task_get_name(struct dm_task *dmt);
|
||||
const char *dm_task_get_uuid(struct dm_task *dmt);
|
||||
|
||||
struct dm_deps *dm_task_get_deps(struct dm_task *dmt);
|
||||
struct dm_names *dm_task_get_names(struct dm_task *dmt);
|
||||
|
||||
int dm_task_set_ro(struct dm_task *dmt);
|
||||
int dm_task_set_newname(struct dm_task *dmt, const char *newname);
|
||||
int dm_task_set_minor(struct dm_task *dmt, int minor);
|
||||
int dm_task_set_major(struct dm_task *dmt, int major);
|
||||
int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr);
|
||||
|
||||
/*
|
||||
* Use these to prepare for a create or reload.
|
||||
*/
|
||||
int dm_task_add_target(struct dm_task *dmt,
|
||||
uint64_t start,
|
||||
uint64_t size, const char *ttype, const char *params);
|
||||
|
||||
/*
|
||||
* Format major/minor numbers correctly for input to driver
|
||||
*/
|
||||
int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor);
|
||||
|
||||
/* Use this to retrive target information returned from a STATUS call */
|
||||
void *dm_get_next_target(struct dm_task *dmt,
|
||||
void *next, uint64_t *start, uint64_t *length,
|
||||
char **target_type, char **params);
|
||||
|
||||
/*
|
||||
* Call this to actually run the ioctl.
|
||||
*/
|
||||
int dm_task_run(struct dm_task *dmt);
|
||||
|
||||
/*
|
||||
* Configure the device-mapper directory
|
||||
*/
|
||||
int dm_set_dev_dir(const char *dir);
|
||||
const char *dm_dir(void);
|
||||
|
||||
/* Release library resources */
|
||||
void dm_lib_release(void);
|
||||
void dm_lib_exit(void);
|
||||
|
||||
#endif /* LIB_DEVICE_MAPPER_H */
|
||||
|
|
@ -1,382 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#include "libdm-targets.h"
|
||||
#include "libdm-common.h"
|
||||
#include "list.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
#include <string.h>
|
||||
#include <sys/param.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
#include <errno.h>
|
||||
#include <linux/dm-ioctl.h>
|
||||
#include <linux/kdev_t.h>
|
||||
|
||||
#define DEV_DIR "/dev/"
|
||||
|
||||
static char _dm_dir[PATH_MAX] = DEV_DIR DM_DIR;
|
||||
|
||||
static int _verbose = 0;
|
||||
|
||||
/*
|
||||
* Library users can provide their own logging
|
||||
* function.
|
||||
*/
|
||||
static void _default_log(int level, const char *file, int line,
|
||||
const char *f, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
if (level > _LOG_WARN && !_verbose)
|
||||
return;
|
||||
|
||||
va_start(ap, f);
|
||||
|
||||
if (level < _LOG_WARN)
|
||||
vfprintf(stderr, f, ap);
|
||||
else
|
||||
vprintf(f, ap);
|
||||
|
||||
va_end(ap);
|
||||
|
||||
if (level < _LOG_WARN)
|
||||
fprintf(stderr, "\n");
|
||||
else
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
|
||||
dm_log_fn _log = _default_log;
|
||||
|
||||
void dm_log_init(dm_log_fn fn)
|
||||
{
|
||||
_log = fn;
|
||||
}
|
||||
|
||||
void dm_log_init_verbose(int level)
|
||||
{
|
||||
_verbose = level;
|
||||
}
|
||||
|
||||
static void _build_dev_path(char *buffer, size_t len, const char *dev_name)
|
||||
{
|
||||
/* If there's a /, assume caller knows what they're doing */
|
||||
if (strchr(dev_name, '/'))
|
||||
snprintf(buffer, len, "%s", dev_name);
|
||||
else
|
||||
snprintf(buffer, len, "%s/%s", _dm_dir, dev_name);
|
||||
}
|
||||
|
||||
int dm_get_library_version(char *version, size_t size)
|
||||
{
|
||||
strncpy(version, DM_LIB_VERSION, size);
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct dm_task *dm_task_create(int type)
|
||||
{
|
||||
struct dm_task *dmt = malloc(sizeof(*dmt));
|
||||
|
||||
if (!dm_check_version())
|
||||
return NULL;
|
||||
|
||||
if (!dmt) {
|
||||
log_error("dm_task_create: malloc(%d) failed", sizeof(*dmt));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
memset(dmt, 0, sizeof(*dmt));
|
||||
|
||||
dmt->type = type;
|
||||
dmt->minor = -1;
|
||||
dmt->major = -1;
|
||||
|
||||
return dmt;
|
||||
}
|
||||
|
||||
int dm_task_set_name(struct dm_task *dmt, const char *name)
|
||||
{
|
||||
char *pos;
|
||||
char path[PATH_MAX];
|
||||
struct stat st1, st2;
|
||||
|
||||
if (dmt->dev_name) {
|
||||
free(dmt->dev_name);
|
||||
dmt->dev_name = NULL;
|
||||
}
|
||||
|
||||
/* If path was supplied, remove it if it points to the same device
|
||||
* as its last component.
|
||||
*/
|
||||
if ((pos = strrchr(name, '/'))) {
|
||||
snprintf(path, sizeof(path), "%s/%s", _dm_dir, pos + 1);
|
||||
|
||||
if (stat(name, &st1) || stat(path, &st2) ||
|
||||
!(st1.st_dev == st2.st_dev)) {
|
||||
log_error("dm_task_set_name: Device %s not found",
|
||||
name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
name = pos + 1;
|
||||
}
|
||||
|
||||
if (!(dmt->dev_name = strdup(name))) {
|
||||
log_error("dm_task_set_name: strdup(%s) failed", name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int dm_task_set_uuid(struct dm_task *dmt, const char *uuid)
|
||||
{
|
||||
if (dmt->uuid) {
|
||||
free(dmt->uuid);
|
||||
dmt->uuid = NULL;
|
||||
}
|
||||
|
||||
if (!(dmt->uuid = strdup(uuid))) {
|
||||
log_error("dm_task_set_uuid: strdup(%s) failed", uuid);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int dm_task_set_major(struct dm_task *dmt, int major)
|
||||
{
|
||||
dmt->major = major;
|
||||
log_debug("Setting major: %d", dmt->major);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int dm_task_set_minor(struct dm_task *dmt, int minor)
|
||||
{
|
||||
dmt->minor = minor;
|
||||
log_debug("Setting minor: %d", dmt->minor);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int dm_task_add_target(struct dm_task *dmt, uint64_t start, uint64_t size,
|
||||
const char *ttype, const char *params)
|
||||
{
|
||||
struct target *t = create_target(start, size, ttype, params);
|
||||
|
||||
if (!t)
|
||||
return 0;
|
||||
|
||||
if (!dmt->head)
|
||||
dmt->head = dmt->tail = t;
|
||||
else {
|
||||
dmt->tail->next = t;
|
||||
dmt->tail = t;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor)
|
||||
{
|
||||
char path[PATH_MAX];
|
||||
struct stat info;
|
||||
dev_t dev = MKDEV(major, minor);
|
||||
|
||||
_build_dev_path(path, sizeof(path), dev_name);
|
||||
|
||||
if (stat(path, &info) >= 0) {
|
||||
if (!S_ISBLK(info.st_mode)) {
|
||||
log_error("A non-block device file at '%s' "
|
||||
"is already present", path);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (info.st_rdev == dev)
|
||||
return 1;
|
||||
|
||||
if (unlink(path) < 0) {
|
||||
log_error("Unable to unlink device node for '%s'",
|
||||
dev_name);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (mknod(path, S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP, dev) < 0) {
|
||||
log_error("Unable to make device node for '%s'", dev_name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int _rename_dev_node(const char *old_name, const char *new_name)
|
||||
{
|
||||
char oldpath[PATH_MAX];
|
||||
char newpath[PATH_MAX];
|
||||
struct stat info;
|
||||
|
||||
_build_dev_path(oldpath, sizeof(oldpath), old_name);
|
||||
_build_dev_path(newpath, sizeof(newpath), new_name);
|
||||
|
||||
if (stat(newpath, &info) == 0) {
|
||||
if (!S_ISBLK(info.st_mode)) {
|
||||
log_error("A non-block device file at '%s' "
|
||||
"is already present", newpath);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (unlink(newpath) < 0) {
|
||||
if (errno == EPERM) {
|
||||
/* devfs, entry has already been renamed */
|
||||
return 1;
|
||||
}
|
||||
log_error("Unable to unlink device node for '%s'",
|
||||
new_name);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (rename(oldpath, newpath) < 0) {
|
||||
log_error("Unable to rename device node from '%s' to '%s'",
|
||||
old_name, new_name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int _rm_dev_node(const char *dev_name)
|
||||
{
|
||||
char path[PATH_MAX];
|
||||
struct stat info;
|
||||
|
||||
_build_dev_path(path, sizeof(path), dev_name);
|
||||
|
||||
if (stat(path, &info) < 0)
|
||||
return 1;
|
||||
|
||||
if (unlink(path) < 0) {
|
||||
log_error("Unable to unlink device node for '%s'", dev_name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
typedef enum {
|
||||
NODE_ADD,
|
||||
NODE_DEL,
|
||||
NODE_RENAME
|
||||
} node_op_t;
|
||||
|
||||
static int _do_node_op(node_op_t type, const char *dev_name, uint32_t major,
|
||||
uint32_t minor, const char *old_name)
|
||||
{
|
||||
switch (type) {
|
||||
case NODE_ADD:
|
||||
return _add_dev_node(dev_name, major, minor);
|
||||
case NODE_DEL:
|
||||
return _rm_dev_node(dev_name);
|
||||
case NODE_RENAME:
|
||||
return _rename_dev_node(old_name, dev_name);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static LIST_INIT(_node_ops);
|
||||
|
||||
struct node_op_parms {
|
||||
struct list list;
|
||||
node_op_t type;
|
||||
char *dev_name;
|
||||
uint32_t major;
|
||||
uint32_t minor;
|
||||
char *old_name;
|
||||
char names[0];
|
||||
};
|
||||
|
||||
static void _store_str(char **pos, char **ptr, const char *str)
|
||||
{
|
||||
strcpy(*pos, str);
|
||||
*ptr = *pos;
|
||||
*pos += strlen(*ptr) + 1;
|
||||
}
|
||||
|
||||
static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major,
|
||||
uint32_t minor, const char *old_name)
|
||||
{
|
||||
struct node_op_parms *nop;
|
||||
size_t len = strlen(dev_name) + strlen(old_name) + 2;
|
||||
char *pos;
|
||||
|
||||
if (!(nop = malloc(sizeof(*nop) + len))) {
|
||||
log_error("Insufficient memory to stack mknod operation");
|
||||
return 0;
|
||||
}
|
||||
|
||||
pos = nop->names;
|
||||
nop->type = type;
|
||||
nop->major = major;
|
||||
nop->minor = minor;
|
||||
|
||||
_store_str(&pos, &nop->dev_name, dev_name);
|
||||
_store_str(&pos, &nop->old_name, old_name);
|
||||
|
||||
list_add(&_node_ops, &nop->list);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void _pop_node_ops(void)
|
||||
{
|
||||
struct list *noph, *nopht;
|
||||
struct node_op_parms *nop;
|
||||
|
||||
list_iterate_safe(noph, nopht, &_node_ops) {
|
||||
nop = list_item(noph, struct node_op_parms);
|
||||
_do_node_op(nop->type, nop->dev_name, nop->major, nop->minor,
|
||||
nop->old_name);
|
||||
list_del(&nop->list);
|
||||
free(nop);
|
||||
}
|
||||
}
|
||||
|
||||
int add_dev_node(const char *dev_name, uint32_t major, uint32_t minor)
|
||||
{
|
||||
return _stack_node_op(NODE_ADD, dev_name, major, minor, "");
|
||||
}
|
||||
|
||||
int rename_dev_node(const char *old_name, const char *new_name)
|
||||
{
|
||||
return _stack_node_op(NODE_RENAME, new_name, 0, 0, old_name);
|
||||
}
|
||||
|
||||
int rm_dev_node(const char *dev_name)
|
||||
{
|
||||
return _stack_node_op(NODE_DEL, dev_name, 0, 0, "");
|
||||
}
|
||||
|
||||
void update_devs(void)
|
||||
{
|
||||
_pop_node_ops();
|
||||
}
|
||||
|
||||
int dm_set_dev_dir(const char *dir)
|
||||
{
|
||||
snprintf(_dm_dir, sizeof(_dm_dir), "%s%s", dir, DM_DIR);
|
||||
return 1;
|
||||
}
|
||||
|
||||
const char *dm_dir(void)
|
||||
{
|
||||
return _dm_dir;
|
||||
}
|
||||
|
|
@ -1,38 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#ifndef LIB_DMCOMMON_H
|
||||
#define LIB_DMCOMMON_H
|
||||
|
||||
#include "libdevmapper.h"
|
||||
|
||||
#define _LOG_DEBUG 7
|
||||
#define _LOG_INFO 6
|
||||
#define _LOG_NOTICE 5
|
||||
#define _LOG_WARN 4
|
||||
#define _LOG_ERR 3
|
||||
#define _LOG_FATAL 2
|
||||
|
||||
extern dm_log_fn _log;
|
||||
|
||||
#define log_error(msg, x...) _log(_LOG_ERR, __FILE__, __LINE__, msg, ## x)
|
||||
#define log_print(msg, x...) _log(_LOG_WARN, __FILE__, __LINE__, msg, ## x)
|
||||
#define log_verbose(msg, x...) _log(_LOG_NOTICE, __FILE__, __LINE__, msg, ## x)
|
||||
#define log_very_verbose(msg, x...) _log(_LOG_INFO, __FILE__, __LINE__, msg, ## x)
|
||||
#define log_debug(msg, x...) _log(_LOG_DEBUG, __FILE__, __LINE__, msg, ## x)
|
||||
|
||||
struct target *create_target(uint64_t start,
|
||||
uint64_t len,
|
||||
const char *type, const char *params);
|
||||
|
||||
int add_dev_node(const char *dev_name, uint32_t minor, uint32_t major);
|
||||
int rm_dev_node(const char *dev_name);
|
||||
int rename_dev_node(const char *old_name, const char *new_name);
|
||||
void update_devs(void);
|
||||
|
||||
#define DM_LIB_VERSION "1.00.07-ioctl (2003-11-21)"
|
||||
|
||||
#endif
|
||||
|
|
@ -1,99 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2001 Sistina Software
|
||||
*
|
||||
* This file is released under the LGPL.
|
||||
*/
|
||||
|
||||
#ifndef _LVM_LIST_H
|
||||
#define _LVM_LIST_H
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
struct list {
|
||||
struct list *n, *p;
|
||||
};
|
||||
|
||||
#define LIST_INIT(name) struct list name = { &(name), &(name) }
|
||||
|
||||
static inline void list_init(struct list *head)
|
||||
{
|
||||
head->n = head->p = head;
|
||||
}
|
||||
|
||||
static inline void list_add(struct list *head, struct list *elem)
|
||||
{
|
||||
assert(head->n);
|
||||
|
||||
elem->n = head;
|
||||
elem->p = head->p;
|
||||
|
||||
head->p->n = elem;
|
||||
head->p = elem;
|
||||
}
|
||||
|
||||
static inline void list_add_h(struct list *head, struct list *elem)
|
||||
{
|
||||
assert(head->n);
|
||||
|
||||
elem->n = head->n;
|
||||
elem->p = head;
|
||||
|
||||
head->n->p = elem;
|
||||
head->n = elem;
|
||||
}
|
||||
|
||||
static inline void list_del(struct list *elem)
|
||||
{
|
||||
elem->n->p = elem->p;
|
||||
elem->p->n = elem->n;
|
||||
}
|
||||
|
||||
static inline int list_empty(struct list *head)
|
||||
{
|
||||
return head->n == head;
|
||||
}
|
||||
|
||||
static inline int list_end(struct list *head, struct list *elem)
|
||||
{
|
||||
return elem->n == head;
|
||||
}
|
||||
|
||||
static inline struct list *list_next(struct list *head, struct list *elem)
|
||||
{
|
||||
return (list_end(head, elem) ? NULL : elem->n);
|
||||
}
|
||||
|
||||
#define list_iterate(v, head) \
|
||||
for (v = (head)->n; v != head; v = v->n)
|
||||
|
||||
#define list_uniterate(v, head, start) \
|
||||
for (v = (start)->p; v != head; v = v->p)
|
||||
|
||||
#define list_iterate_safe(v, t, head) \
|
||||
for (v = (head)->n, t = v->n; v != head; v = t, t = v->n)
|
||||
|
||||
static inline unsigned int list_size(const struct list *head)
|
||||
{
|
||||
unsigned int s = 0;
|
||||
const struct list *v;
|
||||
|
||||
list_iterate(v, head)
|
||||
s++;
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
#define list_item(v, t) \
|
||||
((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->list))
|
||||
|
||||
#define list_struct_base(v, t, h) \
|
||||
((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->h))
|
||||
|
||||
/* Given a known element in a known structure, locate another */
|
||||
#define struct_field(v, t, e, f) \
|
||||
(((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->f)
|
||||
|
||||
/* Given a known element in a known structure, locate the list head */
|
||||
#define list_head(v, t, e) struct_field(v, t, e, list)
|
||||
|
||||
#endif
|
||||
|
|
@ -1,705 +0,0 @@
|
|||
/*
|
||||
* Soft: multipath device mapper target autoconfig
|
||||
*
|
||||
* Version: $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
|
||||
*
|
||||
* Author: Copyright (C) 2003 Christophe Varoqui
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* See the GNU General Public License for more details.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <linux/kdev_t.h>
|
||||
#include <string.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sysfs/libsysfs.h>
|
||||
#include "libdevmapper/libdevmapper.h"
|
||||
#include "main.h"
|
||||
#include "devinfo.h"
|
||||
|
||||
/* White list switch */
|
||||
static int
|
||||
get_unique_id(struct path * mypath)
|
||||
{
|
||||
int i;
|
||||
static struct {
|
||||
char * vendor;
|
||||
char * product;
|
||||
int iopolicy;
|
||||
int (*getuid) (char *, char *);
|
||||
} wlist[] = {
|
||||
{"COMPAQ ", "HSV110 (C)COMPAQ", GROUP_BY_SERIAL, &get_evpd_wwid},
|
||||
{"COMPAQ ", "MSA1000 ", GROUP_BY_SERIAL, &get_evpd_wwid},
|
||||
{"COMPAQ ", "MSA1000 VOLUME ", GROUP_BY_SERIAL, &get_evpd_wwid},
|
||||
{"DEC ", "HSG80 ", GROUP_BY_SERIAL, &get_evpd_wwid},
|
||||
{"HP ", "HSV100 ", GROUP_BY_SERIAL, &get_evpd_wwid},
|
||||
{"HP ", "A6189A ", MULTIBUS, &get_evpd_wwid},
|
||||
{"HP ", "OPEN- ", MULTIBUS, &get_evpd_wwid},
|
||||
{"DDN ", "SAN DataDirector", MULTIBUS, &get_evpd_wwid},
|
||||
{"FSC ", "CentricStor ", MULTIBUS, &get_evpd_wwid},
|
||||
{"HITACHI ", "DF400 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"HITACHI ", "DF500 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"HITACHI ", "DF600 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"IBM ", "ProFibre 4000R ", MULTIBUS, &get_evpd_wwid},
|
||||
{"SGI ", "TP9100 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"SGI ", "TP9300 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"SGI ", "TP9400 ", MULTIBUS, &get_evpd_wwid},
|
||||
{"SGI ", "TP9500 ", MULTIBUS, &get_evpd_wwid},
|
||||
{NULL, NULL, 0, NULL},
|
||||
};
|
||||
|
||||
for (i = 0; wlist[i].vendor; i++) {
|
||||
if (strncmp(mypath->vendor_id, wlist[i].vendor, 8) == 0 &&
|
||||
strncmp(mypath->product_id, wlist[i].product, 16) == 0) {
|
||||
mypath->iopolicy = wlist[i].iopolicy;
|
||||
if (!wlist[i].getuid(mypath->sg_dev, mypath->wwid))
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int
|
||||
blacklist (char * dev) {
|
||||
int i;
|
||||
static struct {
|
||||
char * headstr;
|
||||
int lengh;
|
||||
} blist[] = {
|
||||
{"cciss", 5},
|
||||
{"hd", 2},
|
||||
{"md", 2},
|
||||
{"dm", 2},
|
||||
{"sr", 2},
|
||||
{"scd", 3},
|
||||
{"ram", 3},
|
||||
{"raw", 3},
|
||||
{NULL, 0},
|
||||
};
|
||||
|
||||
for (i = 0; blist[i].lengh; i++) {
|
||||
if (strncmp(dev, blist[i].headstr, blist[i].lengh) == 0)
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
get_all_paths_sysfs(struct env * conf, struct path * all_paths)
|
||||
{
|
||||
int k=0;
|
||||
struct sysfs_directory * sdir;
|
||||
struct sysfs_directory * devp;
|
||||
struct sysfs_link * linkp;
|
||||
char refwwid[WWID_SIZE];
|
||||
char empty_buff[WWID_SIZE];
|
||||
char buff[FILE_NAME_SIZE];
|
||||
char path[FILE_NAME_SIZE];
|
||||
struct path curpath;
|
||||
|
||||
/* if called from hotplug, only consider the paths that relate */
|
||||
/* to the device pointed by conf.hotplugdev */
|
||||
memset(empty_buff, 0, WWID_SIZE);
|
||||
memset(refwwid, 0, WWID_SIZE);
|
||||
if (strncmp("/devices", conf->hotplugdev, 8) == 0) {
|
||||
sprintf(buff, "%s%s/block",
|
||||
conf->sysfs_path, conf->hotplugdev);
|
||||
memset(conf->hotplugdev, 0, FILE_NAME_SIZE);
|
||||
|
||||
/* if called from hotplug but with no block, leave */
|
||||
if (0 > readlink(buff, conf->hotplugdev, FILE_NAME_SIZE))
|
||||
return 0;
|
||||
|
||||
basename(conf->hotplugdev, buff);
|
||||
sprintf(curpath.sg_dev, "/dev/%s", buff);
|
||||
|
||||
get_lun_strings(curpath.vendor_id,
|
||||
curpath.product_id,
|
||||
curpath.rev,
|
||||
curpath.sg_dev);
|
||||
get_serial(curpath.serial, curpath.sg_dev);
|
||||
if (!get_unique_id(&curpath))
|
||||
return 0;
|
||||
strcpy(refwwid, curpath.wwid);
|
||||
memset(&curpath, 0, sizeof(path));
|
||||
}
|
||||
|
||||
sprintf(path, "%s/block", conf->sysfs_path);
|
||||
sdir = sysfs_open_directory(path);
|
||||
sysfs_read_directory(sdir);
|
||||
|
||||
dlist_for_each_data(sdir->subdirs, devp, struct sysfs_directory) {
|
||||
if (blacklist(devp->name))
|
||||
continue;
|
||||
|
||||
sysfs_read_directory(devp);
|
||||
|
||||
if(devp->links == NULL)
|
||||
continue;
|
||||
|
||||
dlist_for_each_data(devp->links, linkp, struct sysfs_link) {
|
||||
if (!strncmp(linkp->name, "device", 6))
|
||||
break;
|
||||
}
|
||||
|
||||
if (linkp == NULL) {
|
||||
continue;
|
||||
}
|
||||
|
||||
basename(devp->path, buff);
|
||||
sprintf(curpath.sg_dev, "/dev/%s", buff);
|
||||
|
||||
get_lun_strings(curpath.vendor_id,
|
||||
curpath.product_id,
|
||||
curpath.rev,
|
||||
curpath.sg_dev);
|
||||
get_serial(curpath.serial, curpath.sg_dev);
|
||||
if(!get_unique_id(&curpath)) {
|
||||
memset(&curpath, 0, sizeof(path));
|
||||
continue;
|
||||
}
|
||||
|
||||
if (memcmp(empty_buff, refwwid, WWID_SIZE) != 0 &&
|
||||
strncmp(curpath.wwid, refwwid, WWID_SIZE) != 0) {
|
||||
memset(&curpath, 0, sizeof(path));
|
||||
continue;
|
||||
}
|
||||
|
||||
strcpy(all_paths[k].sg_dev, curpath.sg_dev);
|
||||
strcpy(all_paths[k].dev, curpath.sg_dev);
|
||||
strcpy(all_paths[k].wwid, curpath.wwid);
|
||||
strcpy(all_paths[k].vendor_id, curpath.vendor_id);
|
||||
strcpy(all_paths[k].product_id, curpath.product_id);
|
||||
all_paths[k].iopolicy = curpath.iopolicy;
|
||||
|
||||
/* done with curpath, zero for reuse */
|
||||
memset(&curpath, 0, sizeof(path));
|
||||
|
||||
basename(linkp->target, buff);
|
||||
sscanf(buff, "%i:%i:%i:%i",
|
||||
&all_paths[k].sg_id.host_no,
|
||||
&all_paths[k].sg_id.channel,
|
||||
&all_paths[k].sg_id.scsi_id,
|
||||
&all_paths[k].sg_id.lun);
|
||||
k++;
|
||||
}
|
||||
sysfs_close_directory(sdir);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
get_all_paths_nosysfs(struct env * conf, struct path * all_paths,
|
||||
struct scsi_dev * all_scsi_ids)
|
||||
{
|
||||
int k, i, fd;
|
||||
char buff[FILE_NAME_SIZE];
|
||||
char file_name[FILE_NAME_SIZE];
|
||||
|
||||
for (k = 0; k < conf->max_devs; k++) {
|
||||
strcpy(file_name, "/dev/sg");
|
||||
sprintf(buff, "%d", k);
|
||||
strncat(file_name, buff, FILE_NAME_SIZE);
|
||||
strcpy(all_paths[k].sg_dev, file_name);
|
||||
|
||||
get_lun_strings(all_paths[k].vendor_id,
|
||||
all_paths[k].product_id,
|
||||
all_paths[k].rev,
|
||||
all_paths[k].sg_dev);
|
||||
get_serial(all_paths[k].serial, all_paths[k].sg_dev);
|
||||
if (!get_unique_id(&all_paths[k]))
|
||||
continue;
|
||||
|
||||
if ((fd = open(all_paths[k].sg_dev, O_RDONLY)) < 0)
|
||||
return 0;
|
||||
|
||||
if (0 > ioctl(fd, SG_GET_SCSI_ID, &(all_paths[k].sg_id)))
|
||||
printf("device %s failed on sg ioctl, skip\n",
|
||||
file_name);
|
||||
|
||||
close(fd);
|
||||
|
||||
for (i = 0; i < conf->max_devs; i++) {
|
||||
if ((all_paths[k].sg_id.host_no ==
|
||||
all_scsi_ids[i].host_no)
|
||||
&& (all_paths[k].sg_id.scsi_id ==
|
||||
(all_scsi_ids[i].scsi_id.dev_id & 0xff))
|
||||
&& (all_paths[k].sg_id.lun ==
|
||||
((all_scsi_ids[i].scsi_id.dev_id >> 8) & 0xff))
|
||||
&& (all_paths[k].sg_id.channel ==
|
||||
((all_scsi_ids[i].scsi_id.
|
||||
dev_id >> 16) & 0xff))) {
|
||||
strcpy(all_paths[k].dev, all_scsi_ids[i].dev);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
get_all_scsi_ids(struct env * conf, struct scsi_dev * all_scsi_ids)
|
||||
{
|
||||
int k, big, little, res, host_no, fd;
|
||||
char buff[64];
|
||||
char fname[FILE_NAME_SIZE];
|
||||
struct scsi_idlun my_scsi_id;
|
||||
|
||||
for (k = 0; k < conf->max_devs; k++) {
|
||||
strcpy(fname, "/dev/sd");
|
||||
if (k < 26) {
|
||||
buff[0] = 'a' + (char) k;
|
||||
buff[1] = '\0';
|
||||
strcat(fname, buff);
|
||||
} else if (k <= 255) {
|
||||
/* assumes sequence goes x,y,z,aa,ab,ac etc */
|
||||
big = k / 26;
|
||||
little = k - (26 * big);
|
||||
big = big - 1;
|
||||
|
||||
buff[0] = 'a' + (char) big;
|
||||
buff[1] = 'a' + (char) little;
|
||||
buff[2] = '\0';
|
||||
strcat(fname, buff);
|
||||
} else
|
||||
strcat(fname, "xxxx");
|
||||
|
||||
if ((fd = open(fname, O_RDONLY)) < 0) {
|
||||
if (conf->verbose)
|
||||
fprintf(stderr, "can't open %s. mknod ?",
|
||||
fname);
|
||||
continue;
|
||||
}
|
||||
|
||||
res = ioctl(fd, SCSI_IOCTL_GET_IDLUN, &my_scsi_id);
|
||||
if (res < 0) {
|
||||
close(fd);
|
||||
printf("Could not get scsi idlun\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
res = ioctl(fd, SCSI_IOCTL_GET_BUS_NUMBER, &host_no);
|
||||
if (res < 0) {
|
||||
close(fd);
|
||||
printf("Could not get host_no\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
close(fd);
|
||||
|
||||
strcpy(all_scsi_ids[k].dev, fname);
|
||||
all_scsi_ids[k].scsi_id = my_scsi_id;
|
||||
all_scsi_ids[k].host_no = host_no;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* print_path style */
|
||||
#define ALL 0
|
||||
#define NOWWID 1
|
||||
|
||||
static void
|
||||
print_path(struct path * all_paths, int k, int style)
|
||||
{
|
||||
if (style != NOWWID)
|
||||
printf("%s ", all_paths[k].wwid);
|
||||
else
|
||||
printf(" \\_");
|
||||
printf("(%i %i %i %i) ",
|
||||
all_paths[k].sg_id.host_no,
|
||||
all_paths[k].sg_id.channel,
|
||||
all_paths[k].sg_id.scsi_id, all_paths[k].sg_id.lun);
|
||||
if(0 != strcmp(all_paths[k].sg_dev, all_paths[k].dev))
|
||||
printf("%s ", all_paths[k].sg_dev);
|
||||
printf("%s ", all_paths[k].dev);
|
||||
printf("[%.16s]\n", all_paths[k].product_id);
|
||||
}
|
||||
|
||||
static void
|
||||
print_all_path(struct env * conf, struct path * all_paths)
|
||||
{
|
||||
int k;
|
||||
char empty_buff[WWID_SIZE];
|
||||
|
||||
memset(empty_buff, 0, WWID_SIZE);
|
||||
for (k = 0; k < conf->max_devs; k++) {
|
||||
if (memcmp(empty_buff, all_paths[k].wwid, WWID_SIZE) == 0)
|
||||
continue;
|
||||
print_path(all_paths, k, ALL);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
print_all_mp(struct path * all_paths, struct multipath * mp, int nmp)
|
||||
{
|
||||
int k, i;
|
||||
|
||||
for (k = 0; k <= nmp; k++) {
|
||||
printf("%s\n", mp[k].wwid);
|
||||
for (i = 0; i <= mp[k].npaths; i++)
|
||||
print_path(all_paths, PINDEX(k,i), NOWWID);
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
coalesce_paths(struct env * conf, struct multipath * mp,
|
||||
struct path * all_paths)
|
||||
{
|
||||
int k, i, nmp, np, already_done;
|
||||
char empty_buff[WWID_SIZE];
|
||||
|
||||
nmp = -1;
|
||||
already_done = 0;
|
||||
memset(empty_buff, 0, WWID_SIZE);
|
||||
|
||||
for (k = 0; k < conf->max_devs - 1; k++) {
|
||||
/* skip this path for some reason */
|
||||
|
||||
/* 1. if path has no unique id */
|
||||
if (memcmp(empty_buff, all_paths[k].wwid, WWID_SIZE) == 0)
|
||||
continue;
|
||||
|
||||
/* 2. if mp with this uid already instanciated */
|
||||
for (i = 0; i <= nmp; i++) {
|
||||
if (0 == strcmp(mp[i].wwid, all_paths[k].wwid))
|
||||
already_done = 1;
|
||||
}
|
||||
if (already_done) {
|
||||
already_done = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* at this point, we know we really got a new mp */
|
||||
np = 0;
|
||||
nmp++;
|
||||
strcpy(mp[nmp].wwid, all_paths[k].wwid);
|
||||
PINDEX(nmp,np) = k;
|
||||
|
||||
if (mp[nmp].size == 0)
|
||||
mp[nmp].size = get_disk_size(all_paths[k].dev);
|
||||
|
||||
for (i = k + 1; i < conf->max_devs; i++) {
|
||||
if (0 == strcmp(all_paths[k].wwid, all_paths[i].wwid)) {
|
||||
np++;
|
||||
PINDEX(nmp,np) = i;
|
||||
mp[nmp].npaths = np;
|
||||
}
|
||||
}
|
||||
}
|
||||
return nmp;
|
||||
}
|
||||
|
||||
static void
|
||||
group_by_serial(struct multipath * mp, struct path * all_paths, char * str) {
|
||||
int path_count, pg_count = 0;
|
||||
int i, k;
|
||||
int * bitmap;
|
||||
char path_buff[FILE_NAME_SIZE];
|
||||
char pg_buff[FILE_NAME_SIZE];
|
||||
char * path_buff_p = &path_buff[0];
|
||||
char * pg_buff_p = &pg_buff[0];
|
||||
|
||||
/* init the bitmap */
|
||||
bitmap = malloc((mp->npaths + 1) * sizeof(int));
|
||||
memset(bitmap, 0, (mp->npaths + 1) * sizeof(int));
|
||||
|
||||
for (i = 0; i <= mp->npaths; i++) {
|
||||
if (bitmap[i])
|
||||
continue;
|
||||
|
||||
/* here, we really got a new pg */
|
||||
pg_count++;
|
||||
path_count = 1;
|
||||
memset(&path_buff, 0, FILE_NAME_SIZE * sizeof(char));
|
||||
path_buff_p = &path_buff[0];
|
||||
|
||||
path_buff_p += sprintf(path_buff_p, " %s", all_paths[mp->pindex[i]].dev);
|
||||
bitmap[i] = 1;
|
||||
|
||||
for (k = i + 1; k <= mp->npaths; k++) {
|
||||
if (bitmap[k])
|
||||
continue;
|
||||
if (0 == strcmp(all_paths[mp->pindex[i]].serial,
|
||||
all_paths[mp->pindex[k]].serial)) {
|
||||
path_buff_p += sprintf(path_buff_p, " %s", all_paths[mp->pindex[k]].dev);
|
||||
bitmap[k] = 1;
|
||||
path_count++;
|
||||
}
|
||||
}
|
||||
pg_buff_p += sprintf(pg_buff_p, " 1 round-robin %i 0%s",
|
||||
path_count, path_buff);
|
||||
}
|
||||
sprintf(str, " %i%s", pg_count, pg_buff);
|
||||
free(bitmap);
|
||||
}
|
||||
|
||||
static int
|
||||
dm_simplecmd(int task, const char *name) {
|
||||
int r = 0;
|
||||
struct dm_task *dmt;
|
||||
|
||||
if (!(dmt = dm_task_create(task)))
|
||||
return 0;
|
||||
|
||||
if (!dm_task_set_name(dmt, name))
|
||||
goto out;
|
||||
|
||||
r = dm_task_run(dmt);
|
||||
|
||||
out:
|
||||
dm_task_destroy(dmt);
|
||||
return r;
|
||||
}
|
||||
|
||||
static int
|
||||
dm_addmap(int task, const char *name, const char *params, long size) {
|
||||
struct dm_task *dmt;
|
||||
|
||||
if (!(dmt = dm_task_create(task)))
|
||||
return 0;
|
||||
|
||||
if (!dm_task_set_name(dmt, name))
|
||||
goto addout;
|
||||
|
||||
if (!dm_task_add_target(dmt, 0, size, DM_TARGET, params))
|
||||
goto addout;
|
||||
|
||||
if (!dm_task_run(dmt))
|
||||
goto addout;
|
||||
|
||||
addout:
|
||||
dm_task_destroy(dmt);
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int
|
||||
setup_map(struct env * conf, struct path * all_paths,
|
||||
struct multipath * mp, int index, int op)
|
||||
{
|
||||
char params[255];
|
||||
char * params_p;
|
||||
int i, np;
|
||||
|
||||
/* defaults for multipath target */
|
||||
int dm_pg_prio = 1;
|
||||
char * dm_ps_name = "round-robin";
|
||||
int dm_ps_nr_args = 0;
|
||||
|
||||
params_p = ¶ms[0];
|
||||
|
||||
np = 0;
|
||||
for (i=0; i<=mp[index].npaths; i++) {
|
||||
if (0 == all_paths[PINDEX(index,i)].sg_id.scsi_type)
|
||||
np++;
|
||||
}
|
||||
|
||||
if (np < 1)
|
||||
return 0;
|
||||
|
||||
if ((all_paths[PINDEX(index,0)].iopolicy == MULTIBUS &&
|
||||
conf->iopolicy == -1) || conf->iopolicy == MULTIBUS) {
|
||||
params_p += sprintf(params_p, " 1 %i %s %i %i",
|
||||
dm_pg_prio, dm_ps_name, np, dm_ps_nr_args);
|
||||
|
||||
for (i=0; i<=mp[index].npaths; i++) {
|
||||
if (0 != all_paths[PINDEX(index,i)].sg_id.scsi_type)
|
||||
continue;
|
||||
params_p += sprintf(params_p, " %s",
|
||||
all_paths[PINDEX(index,i)].dev);
|
||||
}
|
||||
}
|
||||
|
||||
if ((all_paths[PINDEX(index,0)].iopolicy == FAILOVER &&
|
||||
conf->iopolicy == -1) || conf->iopolicy == FAILOVER) {
|
||||
params_p += sprintf(params_p, " %i", mp[index].npaths + 1);
|
||||
for (i=0; i<=mp[index].npaths; i++) {
|
||||
if (0 != all_paths[PINDEX(index,i)].sg_id.scsi_type)
|
||||
continue;
|
||||
params_p += sprintf(params_p, " %i %s ",
|
||||
dm_pg_prio, dm_ps_name);
|
||||
params_p += sprintf(params_p, "1 %i",
|
||||
dm_ps_nr_args);
|
||||
params_p += sprintf(params_p, " %s",
|
||||
all_paths[PINDEX(index,i)].dev);
|
||||
}
|
||||
}
|
||||
|
||||
if ((all_paths[PINDEX(index,0)].iopolicy == GROUP_BY_SERIAL &&
|
||||
conf->iopolicy == -1) || conf->iopolicy == GROUP_BY_SERIAL) {
|
||||
group_by_serial(&mp[index], all_paths, params_p);
|
||||
}
|
||||
|
||||
if (mp[index].size < 0)
|
||||
return 0;
|
||||
|
||||
if (!conf->quiet) {
|
||||
if (op == DM_DEVICE_RELOAD)
|
||||
printf("U:");
|
||||
if (op == DM_DEVICE_CREATE)
|
||||
printf("N:");
|
||||
printf("%s:0 %li %s %s\n",
|
||||
mp[index].wwid, mp[index].size, DM_TARGET, params);
|
||||
}
|
||||
|
||||
if (op == DM_DEVICE_RELOAD)
|
||||
dm_simplecmd(DM_DEVICE_SUSPEND, mp[index].wwid);
|
||||
|
||||
dm_addmap(op, mp[index].wwid, params, mp[index].size);
|
||||
|
||||
if (op == DM_DEVICE_RELOAD)
|
||||
dm_simplecmd(DM_DEVICE_RESUME, mp[index].wwid);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int
|
||||
map_present(char * str)
|
||||
{
|
||||
int r = 0;
|
||||
struct dm_task *dmt;
|
||||
struct dm_names *names;
|
||||
unsigned next = 0;
|
||||
|
||||
if (!(dmt = dm_task_create(DM_DEVICE_LIST)))
|
||||
return 0;
|
||||
|
||||
if (!dm_task_run(dmt))
|
||||
goto out;
|
||||
|
||||
if (!(names = dm_task_get_names(dmt)))
|
||||
goto out;
|
||||
|
||||
if (!names->dev) {
|
||||
goto out;
|
||||
}
|
||||
|
||||
do {
|
||||
if (0 == strcmp(names->name, str))
|
||||
r = 1;
|
||||
next = names->next;
|
||||
names = (void *) names + next;
|
||||
} while (next);
|
||||
|
||||
out:
|
||||
dm_task_destroy(dmt);
|
||||
return r;
|
||||
}
|
||||
|
||||
static void
|
||||
usage(char * progname)
|
||||
{
|
||||
fprintf(stderr, VERSION_STRING);
|
||||
fprintf(stderr, "Usage: %s [-v|-q] [-d] [-m max_devs]",
|
||||
progname);
|
||||
fprintf(stderr, "[-p failover|multibus|group_by_serial] [device]\n");
|
||||
fprintf(stderr, "\t-v\t\tverbose, print all paths and multipaths\n");
|
||||
fprintf(stderr, "\t-q\t\tquiet, no output at all\n");
|
||||
fprintf(stderr, "\t-d\t\tdry run, do not create or update devmaps\n");
|
||||
fprintf(stderr, "\t-m max_devs\tscan {max_devs} devices at most\n");
|
||||
fprintf(stderr, "\t-p policy\tforce maps to specified policy :\n");
|
||||
fprintf(stderr, "\t failover\t\t- 1 path per priority group\n");
|
||||
fprintf(stderr, "\t multibus\t\t- all paths in 1 priority group\n");
|
||||
fprintf(stderr, "\t group_by_serial\t- 1 priority group per serial\n");
|
||||
fprintf(stderr, "\tdevice\t\tlimit scope to the device's multipath\n");
|
||||
fprintf(stderr, "\t\t\t(hotplug-style $DEVPATH reference)\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
struct multipath * mp;
|
||||
struct path * all_paths;
|
||||
struct scsi_dev * all_scsi_ids;
|
||||
struct env conf;
|
||||
int i, k, nmp;
|
||||
|
||||
/* Default behaviour */
|
||||
conf.max_devs = MAX_DEVS;
|
||||
conf.dry_run = 0; /* 1 == Do not Create/Update devmaps */
|
||||
conf.verbose = 0; /* 1 == Print all_paths and mp */
|
||||
conf.quiet = 0; /* 1 == Do not even print devmaps */
|
||||
conf.iopolicy = -1; /* Apply the defaults in get_unique_id() */
|
||||
|
||||
for (i = 1; i < argc; ++i) {
|
||||
if (0 == strcmp("-v", argv[i])) {
|
||||
if (conf.quiet == 1)
|
||||
usage(argv[0]);
|
||||
conf.verbose = 1;
|
||||
} else if (0 == strcmp("-m", argv[i])) {
|
||||
conf.max_devs = atoi(argv[++i]);
|
||||
if (conf.max_devs < 2)
|
||||
usage(argv[0]);
|
||||
} else if (0 == strcmp("-q", argv[i])) {
|
||||
if (conf.verbose == 1)
|
||||
usage(argv[0]);
|
||||
conf.quiet = 1;
|
||||
} else if (0 == strcmp("-d", argv[i]))
|
||||
conf.dry_run = 1;
|
||||
else if (0 == strcmp("-p", argv[i])) {
|
||||
i++;
|
||||
if (!strcmp(argv[i], "failover"))
|
||||
conf.iopolicy = FAILOVER;
|
||||
if (!strcmp(argv[i], "multibus"))
|
||||
conf.iopolicy = MULTIBUS;
|
||||
if (!strcmp(argv[i], "group_by_serial"))
|
||||
conf.iopolicy = GROUP_BY_SERIAL;
|
||||
} else if (*argv[i] == '-') {
|
||||
fprintf(stderr, "Unknown switch: %s\n", argv[i]);
|
||||
usage(argv[0]);
|
||||
} else
|
||||
strncpy(conf.hotplugdev, argv[i], FILE_NAME_SIZE);
|
||||
}
|
||||
|
||||
/* dynamic allocations */
|
||||
mp = malloc(conf.max_devs * sizeof(struct multipath));
|
||||
all_paths = malloc(conf.max_devs * sizeof(struct path));
|
||||
all_scsi_ids = malloc(conf.max_devs * sizeof(struct scsi_dev));
|
||||
if (mp == NULL || all_paths == NULL || all_scsi_ids == NULL)
|
||||
exit(1);
|
||||
|
||||
if (sysfs_get_mnt_path(conf.sysfs_path, FILE_NAME_SIZE)) {
|
||||
get_all_scsi_ids(&conf, all_scsi_ids);
|
||||
get_all_paths_nosysfs(&conf, all_paths, all_scsi_ids);
|
||||
} else {
|
||||
get_all_paths_sysfs(&conf, all_paths);
|
||||
}
|
||||
nmp = coalesce_paths(&conf, mp, all_paths);
|
||||
|
||||
if (conf.verbose) {
|
||||
print_all_path(&conf, all_paths);
|
||||
fprintf(stdout, "\n");
|
||||
print_all_mp(all_paths, mp, nmp);
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
|
||||
if (conf.dry_run)
|
||||
exit(0);
|
||||
|
||||
for (k=0; k<=nmp; k++) {
|
||||
if (map_present(mp[k].wwid)) {
|
||||
setup_map(&conf, all_paths, mp, k, DM_DEVICE_RELOAD);
|
||||
} else {
|
||||
setup_map(&conf, all_paths, mp, k, DM_DEVICE_CREATE);
|
||||
}
|
||||
}
|
||||
|
||||
/* free allocs */
|
||||
free(mp);
|
||||
free(all_paths);
|
||||
free(all_scsi_ids);
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
|
@ -1,124 +0,0 @@
|
|||
/*
|
||||
* Soft: Description here...
|
||||
*
|
||||
* Version: $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
|
||||
*
|
||||
* Author: Copyright (C) 2003 Christophe Varoqui
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* See the GNU General Public License for more details.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef _MAIN_H
|
||||
#define _MAIN_H
|
||||
|
||||
/* local includes */
|
||||
#include "sg_include.h"
|
||||
|
||||
/* exerpt from "sg_err.h" */
|
||||
#define SCSI_CHECK_CONDITION 0x2
|
||||
#define SCSI_COMMAND_TERMINATED 0x22
|
||||
#define SG_ERR_DRIVER_SENSE 0x08
|
||||
|
||||
/* exerpt from "scsi.h" */
|
||||
#define SCSI_IOCTL_GET_IDLUN 0x5382
|
||||
#define SCSI_IOCTL_GET_BUS_NUMBER 0x5386
|
||||
|
||||
/* global defs */
|
||||
#define WWID_SIZE 33
|
||||
#define SERIAL_SIZE 14
|
||||
#define MAX_DEVS 128
|
||||
#define MAX_MP MAX_DEVS / 2
|
||||
#define MAX_MP_PATHS MAX_DEVS / 4
|
||||
#define FILE_NAME_SIZE 256
|
||||
#define DEF_TIMEOUT 60000
|
||||
#define EBUFF_SZ 256
|
||||
#define TUR_CMD_LEN 6
|
||||
#define DM_TARGET "multipath"
|
||||
|
||||
/* Storage controlers cpabilities */
|
||||
#define FAILOVER 0
|
||||
#define MULTIBUS 1
|
||||
#define GROUP_BY_SERIAL 2
|
||||
|
||||
#define PINDEX(x,y) mp[(x)].pindex[(y)]
|
||||
|
||||
/* global types */
|
||||
struct scsi_idlun {
|
||||
int dev_id;
|
||||
int host_unique_id;
|
||||
int host_no;
|
||||
};
|
||||
|
||||
struct sg_id {
|
||||
int host_no;
|
||||
int channel;
|
||||
int scsi_id;
|
||||
int lun;
|
||||
int scsi_type;
|
||||
short h_cmd_per_lun;
|
||||
short d_queue_depth;
|
||||
int unused1;
|
||||
int unused2;
|
||||
};
|
||||
|
||||
struct scsi_dev {
|
||||
char dev[FILE_NAME_SIZE];
|
||||
struct scsi_idlun scsi_id;
|
||||
int host_no;
|
||||
};
|
||||
|
||||
struct path {
|
||||
char dev[FILE_NAME_SIZE];
|
||||
char sg_dev[FILE_NAME_SIZE];
|
||||
struct scsi_idlun scsi_id;
|
||||
struct sg_id sg_id;
|
||||
char wwid[WWID_SIZE];
|
||||
char vendor_id[8];
|
||||
char product_id[16];
|
||||
char rev[4];
|
||||
char serial[SERIAL_SIZE];
|
||||
int iopolicy;
|
||||
};
|
||||
|
||||
struct multipath {
|
||||
char wwid[WWID_SIZE];
|
||||
int npaths;
|
||||
long size;
|
||||
int pindex[MAX_MP_PATHS];
|
||||
};
|
||||
|
||||
struct env {
|
||||
int max_devs;
|
||||
int verbose;
|
||||
int quiet;
|
||||
int dry_run;
|
||||
int iopolicy;
|
||||
int with_sysfs;
|
||||
char sysfs_path[FILE_NAME_SIZE];
|
||||
char hotplugdev[FILE_NAME_SIZE];
|
||||
};
|
||||
|
||||
/* Build version */
|
||||
#define PROG "multipath"
|
||||
|
||||
#define VERSION_CODE 0x000012
|
||||
#define DATE_CODE 0x021504
|
||||
|
||||
#define MULTIPATH_VERSION(version) \
|
||||
(version >> 16) & 0xFF, \
|
||||
(version >> 8) & 0xFF, \
|
||||
version & 0xFF
|
||||
|
||||
#define VERSION_STRING PROG" v%d.%d.%d (%.2d/%.2d, 20%.2d)\n", \
|
||||
MULTIPATH_VERSION(VERSION_CODE), \
|
||||
MULTIPATH_VERSION(DATE_CODE)
|
||||
|
||||
#endif
|
||||
|
|
@ -1,53 +0,0 @@
|
|||
.TH MULTIPATH 8 "February 2004" "" "Linux Administrator's Manual"
|
||||
.SH NAME
|
||||
multipath \- Device mapper target autoconfig
|
||||
.SH SYNOPSIS
|
||||
.B multipath
|
||||
.RB [\| \-v | \-q \|]
|
||||
.RB [\| \-d \|]
|
||||
.RB [\| \-m\ \c
|
||||
.IR max_devs \|]
|
||||
.RB [\| \-p\ \c
|
||||
.BR failover | multibus | group_by_serial \|]
|
||||
.RB [\| device \|]
|
||||
.SH DESCRIPTION
|
||||
.B multipath
|
||||
is used to detect multiple paths to devices for fail-over or performance reasons and coalesces them.
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
.B \-v
|
||||
verbose, print all paths and multipaths
|
||||
.TP
|
||||
.B \-q
|
||||
quiet, no output at all
|
||||
.TP
|
||||
.B \-d
|
||||
dry run, do not create or update devmaps
|
||||
.TP
|
||||
.BI \-m " max_devs"
|
||||
scan
|
||||
.I max_devs
|
||||
devices at most
|
||||
.TP
|
||||
.BI \-p " policy"
|
||||
force maps to specified policy:
|
||||
.RS 1.2i
|
||||
.TP 1.2i
|
||||
.B failover
|
||||
1 path per priority group
|
||||
.TP
|
||||
.B multibus
|
||||
all paths in 1 priority group
|
||||
.TP
|
||||
.B group_by_serial
|
||||
1 priority group per serial
|
||||
.RE
|
||||
.TP
|
||||
.B device
|
||||
limit the [re]configuration to the specified device's multipath scope. device is given in its hotplug $DEVPATH form like /devices/pci0000:03/0000:03:01.0/host0/0:0:5:1
|
||||
.SH "SEE ALSO"
|
||||
.BR udev (8),
|
||||
.BR dmsetup (8)
|
||||
.SH AUTHORS
|
||||
.B multipath
|
||||
was developed by Christophe Varoqui, <christophe.varoqui@free.fr> and others.
|
||||
|
|
@ -1,7 +0,0 @@
|
|||
#!bin/sh
|
||||
. /etc/hotplug/hotplug.functions
|
||||
|
||||
# wait for sysfs
|
||||
sleep 1
|
||||
|
||||
mesg `/sbin/multipath $DEVPATH`
|
||||
|
|
@ -1,162 +0,0 @@
|
|||
#ifndef SG_ERR_H
|
||||
#define SG_ERR_H
|
||||
|
||||
/* Feel free to copy and modify this GPL-ed code into your applications. */
|
||||
|
||||
/* Version 0.90 (20030519)
|
||||
*/
|
||||
|
||||
|
||||
/* Some of the following error/status codes are exchanged between the
|
||||
various layers of the SCSI sub-system in Linux and should never
|
||||
reach the user. They are placed here for completeness. What appears
|
||||
here is copied from drivers/scsi/scsi.h which is not visible in
|
||||
the user space. */
|
||||
|
||||
#ifndef SCSI_CHECK_CONDITION
|
||||
/* Following are the "true" SCSI status codes. Linux has traditionally
|
||||
used a 1 bit right and masked version of these. So now CHECK_CONDITION
|
||||
and friends (in <scsi/scsi.h>) are deprecated. */
|
||||
#define SCSI_CHECK_CONDITION 0x2
|
||||
#define SCSI_CONDITION_MET 0x4
|
||||
#define SCSI_BUSY 0x8
|
||||
#define SCSI_IMMEDIATE 0x10
|
||||
#define SCSI_IMMEDIATE_CONDITION_MET 0x14
|
||||
#define SCSI_RESERVATION_CONFLICT 0x18
|
||||
#define SCSI_COMMAND_TERMINATED 0x22
|
||||
#define SCSI_TASK_SET_FULL 0x28
|
||||
#define SCSI_ACA_ACTIVE 0x30
|
||||
#define SCSI_TASK_ABORTED 0x40
|
||||
#endif
|
||||
|
||||
/* The following are 'host_status' codes */
|
||||
#ifndef DID_OK
|
||||
#define DID_OK 0x00
|
||||
#endif
|
||||
#ifndef DID_NO_CONNECT
|
||||
#define DID_NO_CONNECT 0x01 /* Unable to connect before timeout */
|
||||
#define DID_BUS_BUSY 0x02 /* Bus remain busy until timeout */
|
||||
#define DID_TIME_OUT 0x03 /* Timed out for some other reason */
|
||||
#define DID_BAD_TARGET 0x04 /* Bad target (id?) */
|
||||
#define DID_ABORT 0x05 /* Told to abort for some other reason */
|
||||
#define DID_PARITY 0x06 /* Parity error (on SCSI bus) */
|
||||
#define DID_ERROR 0x07 /* Internal error */
|
||||
#define DID_RESET 0x08 /* Reset by somebody */
|
||||
#define DID_BAD_INTR 0x09 /* Received an unexpected interrupt */
|
||||
#define DID_PASSTHROUGH 0x0a /* Force command past mid-level */
|
||||
#define DID_SOFT_ERROR 0x0b /* The low-level driver wants a retry */
|
||||
#endif
|
||||
|
||||
/* These defines are to isolate applictaions from kernel define changes */
|
||||
#define SG_ERR_DID_OK DID_OK
|
||||
#define SG_ERR_DID_NO_CONNECT DID_NO_CONNECT
|
||||
#define SG_ERR_DID_BUS_BUSY DID_BUS_BUSY
|
||||
#define SG_ERR_DID_TIME_OUT DID_TIME_OUT
|
||||
#define SG_ERR_DID_BAD_TARGET DID_BAD_TARGET
|
||||
#define SG_ERR_DID_ABORT DID_ABORT
|
||||
#define SG_ERR_DID_PARITY DID_PARITY
|
||||
#define SG_ERR_DID_ERROR DID_ERROR
|
||||
#define SG_ERR_DID_RESET DID_RESET
|
||||
#define SG_ERR_DID_BAD_INTR DID_BAD_INTR
|
||||
#define SG_ERR_DID_PASSTHROUGH DID_PASSTHROUGH
|
||||
#define SG_ERR_DID_SOFT_ERROR DID_SOFT_ERROR
|
||||
|
||||
/* The following are 'driver_status' codes */
|
||||
#ifndef DRIVER_OK
|
||||
#define DRIVER_OK 0x00
|
||||
#endif
|
||||
#ifndef DRIVER_BUSY
|
||||
#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 /* Sense_buffer has been set */
|
||||
|
||||
/* Following "suggests" are "or-ed" with one of previous 8 entries */
|
||||
#define SUGGEST_RETRY 0x10
|
||||
#define SUGGEST_ABORT 0x20
|
||||
#define SUGGEST_REMAP 0x30
|
||||
#define SUGGEST_DIE 0x40
|
||||
#define SUGGEST_SENSE 0x80
|
||||
#define SUGGEST_IS_OK 0xff
|
||||
#endif
|
||||
#ifndef DRIVER_MASK
|
||||
#define DRIVER_MASK 0x0f
|
||||
#endif
|
||||
#ifndef SUGGEST_MASK
|
||||
#define SUGGEST_MASK 0xf0
|
||||
#endif
|
||||
|
||||
/* These defines are to isolate applictaions from kernel define changes */
|
||||
#define SG_ERR_DRIVER_OK DRIVER_OK
|
||||
#define SG_ERR_DRIVER_BUSY DRIVER_BUSY
|
||||
#define SG_ERR_DRIVER_SOFT DRIVER_SOFT
|
||||
#define SG_ERR_DRIVER_MEDIA DRIVER_MEDIA
|
||||
#define SG_ERR_DRIVER_ERROR DRIVER_ERROR
|
||||
#define SG_ERR_DRIVER_INVALID DRIVER_INVALID
|
||||
#define SG_ERR_DRIVER_TIMEOUT DRIVER_TIMEOUT
|
||||
#define SG_ERR_DRIVER_HARD DRIVER_HARD
|
||||
#define SG_ERR_DRIVER_SENSE DRIVER_SENSE
|
||||
#define SG_ERR_SUGGEST_RETRY SUGGEST_RETRY
|
||||
#define SG_ERR_SUGGEST_ABORT SUGGEST_ABORT
|
||||
#define SG_ERR_SUGGEST_REMAP SUGGEST_REMAP
|
||||
#define SG_ERR_SUGGEST_DIE SUGGEST_DIE
|
||||
#define SG_ERR_SUGGEST_SENSE SUGGEST_SENSE
|
||||
#define SG_ERR_SUGGEST_IS_OK SUGGEST_IS_OK
|
||||
#define SG_ERR_DRIVER_MASK DRIVER_MASK
|
||||
#define SG_ERR_SUGGEST_MASK SUGGEST_MASK
|
||||
|
||||
|
||||
|
||||
/* The following "print" functions send ACSII to stdout */
|
||||
extern void sg_print_command(const unsigned char * command);
|
||||
extern void sg_print_sense(const char * leadin,
|
||||
const unsigned char * sense_buffer, int sb_len);
|
||||
extern void sg_print_status(int masked_status);
|
||||
extern void sg_print_scsi_status(int scsi_status);
|
||||
extern void sg_print_host_status(int host_status);
|
||||
extern void sg_print_driver_status(int driver_status);
|
||||
|
||||
/* sg_chk_n_print() returns 1 quietly if there are no errors/warnings
|
||||
else it prints to standard output and returns 0. */
|
||||
extern int sg_chk_n_print(const char * leadin, int masked_status,
|
||||
int host_status, int driver_status,
|
||||
const unsigned char * sense_buffer, int sb_len);
|
||||
|
||||
/* The following function declaration is for the sg version 3 driver.
|
||||
Only version 3 sg_err.c defines it. */
|
||||
struct sg_io_hdr;
|
||||
extern int sg_chk_n_print3(const char * leadin, struct sg_io_hdr * hp);
|
||||
|
||||
|
||||
/* The following "category" function returns one of the following */
|
||||
#define SG_ERR_CAT_CLEAN 0 /* No errors or other information */
|
||||
#define SG_ERR_CAT_MEDIA_CHANGED 1 /* interpreted from sense buffer */
|
||||
#define SG_ERR_CAT_RESET 2 /* interpreted from sense buffer */
|
||||
#define SG_ERR_CAT_TIMEOUT 3
|
||||
#define SG_ERR_CAT_RECOVERED 4 /* Successful command after recovered err */
|
||||
#define SG_ERR_CAT_SENSE 98 /* Something else is in the sense buffer */
|
||||
#define SG_ERR_CAT_OTHER 99 /* Some other error/warning has occurred */
|
||||
|
||||
extern int sg_err_category(int masked_status, int host_status,
|
||||
int driver_status, const unsigned char * sense_buffer,
|
||||
int sb_len);
|
||||
|
||||
extern int sg_err_category_new(int scsi_status, int host_status,
|
||||
int driver_status, const unsigned char * sense_buffer,
|
||||
int sb_len);
|
||||
|
||||
/* The following function declaration is for the sg version 3 driver.
|
||||
Only version 3 sg_err.c defines it. */
|
||||
extern int sg_err_category3(struct sg_io_hdr * hp);
|
||||
|
||||
/* Returns length of SCSI command given the opcode (first byte) */
|
||||
extern int sg_get_command_size(unsigned char opcode);
|
||||
|
||||
extern void sg_get_command_name(unsigned char opcode, int buff_len,
|
||||
char * buff);
|
||||
|
||||
#endif
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
#ifdef SG_KERNEL_INCLUDES
|
||||
#define __user
|
||||
typedef unsigned char u8;
|
||||
#include "/usr/src/linux/include/scsi/sg.h"
|
||||
#include "/usr/src/linux/include/scsi/scsi.h"
|
||||
#else
|
||||
#ifdef SG_TRICK_GNU_INCLUDES
|
||||
#include <linux/../scsi/sg.h>
|
||||
#include <linux/../scsi/scsi.h>
|
||||
#else
|
||||
#include <scsi/sg.h>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/*
|
||||
Getting the correct include files for the sg interface can be an ordeal.
|
||||
In a perfect world, one would just write:
|
||||
#include <scsi/sg.h>
|
||||
#include <scsi/scsi.h>
|
||||
This would include the files found in the /usr/include/scsi directory.
|
||||
Those files are maintained with the GNU library which may or may not
|
||||
agree with the kernel and version of sg driver that is running. Any
|
||||
many cases this will not matter. However in some it might, for example
|
||||
glibc 2.1's include files match the sg driver found in the lk 2.2
|
||||
series. Hence if glibc 2.1 is used with lk 2.4 then the additional
|
||||
sg v3 interface will not be visible.
|
||||
If this is a problem then defining SG_KERNEL_INCLUDES will access the
|
||||
kernel supplied header files (assuming they are in the normal place).
|
||||
The GNU library maintainers and various kernel people don't like
|
||||
this approach (but it does work).
|
||||
The technique selected by defining SG_TRICK_GNU_INCLUDES worked (and
|
||||
was used) prior to glibc 2.2 . Prior to that version /usr/include/linux
|
||||
was a symbolic link to /usr/src/linux/include/linux .
|
||||
|
||||
There are other approaches if this include "mixup" causes pain. These
|
||||
would involve include files being copied or symbolic links being
|
||||
introduced.
|
||||
|
||||
Sorry about the inconvenience. Typically neither SG_KERNEL_INCLUDES
|
||||
nor SG_TRICK_GNU_INCLUDES is defined.
|
||||
|
||||
dpg 20010415, 20030522
|
||||
*/
|
||||
|
|
@ -1,95 +0,0 @@
|
|||
static int
|
||||
get_serial (int fd, char * str)
|
||||
{
|
||||
char buff[MX_ALLOC_LEN + 1];
|
||||
int len;
|
||||
|
||||
if (0 == do_inq(fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0)) {
|
||||
len = buff[3];
|
||||
if (len > 0) {
|
||||
memcpy(str, buff + 4, len);
|
||||
buff[len] = '\0';
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
do_tur(int fd)
|
||||
{
|
||||
unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 };
|
||||
struct sg_io_hdr io_hdr;
|
||||
unsigned char sense_buffer[32];
|
||||
|
||||
memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
|
||||
io_hdr.interface_id = 'S';
|
||||
io_hdr.cmd_len = sizeof (turCmdBlk);
|
||||
io_hdr.mx_sb_len = sizeof (sense_buffer);
|
||||
io_hdr.dxfer_direction = SG_DXFER_NONE;
|
||||
io_hdr.cmdp = turCmdBlk;
|
||||
io_hdr.sbp = sense_buffer;
|
||||
io_hdr.timeout = 20000;
|
||||
io_hdr.pack_id = 0;
|
||||
if (ioctl(fd, SG_IO, &io_hdr) < 0) {
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
if (io_hdr.info & SG_INFO_OK_MASK) {
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int
|
||||
del_map(char * str) {
|
||||
struct dm_task *dmt;
|
||||
|
||||
if (!(dmt = dm_task_create(DM_DEVICE_REMOVE)))
|
||||
return 0;
|
||||
if (!dm_task_set_name(dmt, str))
|
||||
goto delout;
|
||||
if (!dm_task_run(dmt))
|
||||
goto delout;
|
||||
|
||||
printf("Deleted device map : %s\n", str);
|
||||
|
||||
delout:
|
||||
dm_task_destroy(dmt);
|
||||
return 1;
|
||||
}
|
||||
|
||||
get_table(const char * str)
|
||||
{
|
||||
int r = 0;
|
||||
struct dm_task *dmt;
|
||||
void *next = NULL;
|
||||
uint64_t start, length;
|
||||
char *target_type = NULL;
|
||||
char *params;
|
||||
|
||||
if (!(dmt = dm_task_create(DM_DEVICE_TABLE)))
|
||||
return 0;
|
||||
|
||||
if (!dm_task_set_name(dmt, str))
|
||||
goto out;
|
||||
|
||||
if (!dm_task_run(dmt))
|
||||
goto out;
|
||||
|
||||
do {
|
||||
next = dm_get_next_target(dmt, next, &start, &length,
|
||||
&target_type, ¶ms);
|
||||
if (target_type) {
|
||||
printf("%" PRIu64 " %" PRIu64 " %s %s\n",
|
||||
start, length, target_type, params);
|
||||
}
|
||||
} while (next);
|
||||
|
||||
r = 1;
|
||||
|
||||
out:
|
||||
dm_task_destroy(dmt);
|
||||
return r;
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue