From: greg@kroah.com Date: Thu, 7 Oct 2004 01:32:41 +0000 (-0700) Subject: [PATCH] delete extras/multipath-tools as per the author's request X-Git-Tag: 033~6 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71144b744acb191d357dbfeb85a256389d4fac3b;p=systemd [PATCH] delete extras/multipath-tools as per the author's request This is now a standalone package. --- diff --git a/extras/multipath-tools/AUTHOR b/extras/multipath-tools/AUTHOR deleted file mode 100644 index 4e8eeef5..00000000 --- a/extras/multipath-tools/AUTHOR +++ /dev/null @@ -1 +0,0 @@ -Christophe Varoqui, diff --git a/extras/multipath-tools/COPYING b/extras/multipath-tools/COPYING deleted file mode 100644 index 9e31bbf0..00000000 --- a/extras/multipath-tools/COPYING +++ /dev/null @@ -1,483 +0,0 @@ - - GNU LIBRARY GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1991 Free Software Foundation, Inc. - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -[This is the first released version of the library GPL. It is - numbered 2 because it goes with version 2 of the ordinary GPL.] - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -Licenses are intended to guarantee your freedom to share and change -free software--to make sure the software is free for all its users. - - This license, the Library General Public License, applies to some -specially designated Free Software Foundation software, and to any -other libraries whose authors decide to use it. You can use it for -your libraries, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -this service if you wish), that you receive source code or can get it -if you want it, that you can change the software or use pieces of it -in new free programs; and that you know you can do these things. - - To protect your rights, we need to make restrictions that forbid -anyone to deny you these rights or to ask you to surrender the rights. -These restrictions translate to certain responsibilities for you if -you distribute copies of the library, or if you modify it. - - For example, if you distribute copies of the library, whether gratis -or for a fee, you must give the recipients all the rights that we gave -you. You must make sure that they, too, receive or can get the source -code. If you link a program with the library, you must provide -complete object files to the recipients so that they can relink them -with the library, after making changes to the library and recompiling -it. And you must show them these terms so they know their rights. - - Our method of protecting your rights has two steps: (1) copyright -the library, and (2) offer you this license which gives you legal -permission to copy, distribute and/or modify the library. - - Also, for each distributor's protection, we want to make certain -that everyone understands that there is no warranty for this free -library. If the library is modified by someone else and passed on, we -want its recipients to know that what they have is not the original -version, so that any problems introduced by others will not reflect on -the original authors' reputations. - - Finally, any free program is threatened constantly by software -patents. We wish to avoid the danger that companies distributing free -software will individually obtain patent licenses, thus in effect -transforming the program into proprietary software. To prevent this, -we have made it clear that any patent must be licensed for everyone's -free use or not licensed at all. - - Most GNU software, including some libraries, is covered by the ordinary -GNU General Public License, which was designed for utility programs. This -license, the GNU Library General Public License, applies to certain -designated libraries. This license is quite different from the ordinary -one; be sure to read it in full, and don't assume that anything in it is -the same as in the ordinary license. - - The reason we have a separate public license for some libraries is that -they blur the distinction we usually make between modifying or adding to a -program and simply using it. Linking a program with a library, without -changing the library, is in some sense simply using the library, and is -analogous to running a utility program or application program. However, in -a textual and legal sense, the linked executable is a combined work, a -derivative of the original library, and the ordinary General Public License -treats it as such. - - Because of this blurred distinction, using the ordinary General -Public License for libraries did not effectively promote software -sharing, because most developers did not use the libraries. We -concluded that weaker conditions might promote sharing better. - - However, unrestricted linking of non-free programs would deprive the -users of those programs of all benefit from the free status of the -libraries themselves. This Library General Public License is intended to -permit developers of non-free programs to use free libraries, while -preserving your freedom as a user of such programs to change the free -libraries that are incorporated in them. (We have not seen how to achieve -this as regards changes in header files, but we have achieved it as regards -changes in the actual functions of the Library.) The hope is that this -will lead to faster development of free libraries. - - The precise terms and conditions for copying, distribution and -modification follow. Pay close attention to the difference between a -"work based on the library" and a "work that uses the library". The -former contains code derived from the library, while the latter only -works together with the library. - - Note that it is possible for a library to be covered by the ordinary -General Public License rather than by this special one. - - GNU LIBRARY GENERAL PUBLIC LICENSE - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - - 0. This License Agreement applies to any software library which -contains a notice placed by the copyright holder or other authorized -party saying it may be distributed under the terms of this Library -General Public License (also called "this License"). Each licensee is -addressed as "you". - - A "library" means a collection of software functions and/or data -prepared so as to be conveniently linked with application programs -(which use some of those functions and data) to form executables. - - The "Library", below, refers to any such software library or work -which has been distributed under these terms. A "work based on the -Library" means either the Library or any derivative work under -copyright law: that is to say, a work containing the Library or a -portion of it, either verbatim or with modifications and/or translated -straightforwardly into another language. (Hereinafter, translation is -included without limitation in the term "modification".) - - "Source code" for a work means the preferred form of the work for -making modifications to it. For a library, complete source code means -all the source code for all modules it contains, plus any associated -interface definition files, plus the scripts used to control compilation -and installation of the library. - - Activities other than copying, distribution and modification are not -covered by this License; they are outside its scope. The act of -running a program using the Library is not restricted, and output from -such a program is covered only if its contents constitute a work based -on the Library (independent of the use of the Library in a tool for -writing it). Whether that is true depends on what the Library does -and what the program that uses the Library does. - - 1. You may copy and distribute verbatim copies of the Library's -complete source code as you receive it, in any medium, provided that -you conspicuously and appropriately publish on each copy an -appropriate copyright notice and disclaimer of warranty; keep intact -all the notices that refer to this License and to the absence of any -warranty; and distribute a copy of this License along with the -Library. - - You may charge a fee for the physical act of transferring a copy, -and you may at your option offer warranty protection in exchange for a -fee. - - 2. You may modify your copy or copies of the Library or any portion -of it, thus forming a work based on the Library, and copy and -distribute such modifications or work under the terms of Section 1 -above, provided that you also meet all of these conditions: - - a) The modified work must itself be a software library. - - b) You must cause the files modified to carry prominent notices - stating that you changed the files and the date of any change. - - c) You must cause the whole of the work to be licensed at no - charge to all third parties under the terms of this License. - - d) If a facility in the modified Library refers to a function or a - table of data to be supplied by an application program that uses - the facility, other than as an argument passed when the facility - is invoked, then you must make a good faith effort to ensure that, - in the event an application does not supply such function or - table, the facility still operates, and performs whatever part of - its purpose remains meaningful. - - (For example, a function in a library to compute square roots has - a purpose that is entirely well-defined independent of the - application. Therefore, Subsection 2d requires that any - application-supplied function or table used by this function must - be optional: if the application does not supply it, the square - root function must still compute square roots.) - -These requirements apply to the modified work as a whole. If -identifiable sections of that work are not derived from the Library, -and can be reasonably considered independent and separate works in -themselves, then this License, and its terms, do not apply to those -sections when you distribute them as separate works. But when you -distribute the same sections as part of a whole which is a work based -on the Library, the distribution of the whole must be on the terms of -this License, whose permissions for other licensees extend to the -entire whole, and thus to each and every part regardless of who wrote -it. - -Thus, it is not the intent of this section to claim rights or contest -your rights to work written entirely by you; rather, the intent is to -exercise the right to control the distribution of derivative or -collective works based on the Library. - -In addition, mere aggregation of another work not based on the Library -with the Library (or with a work based on the Library) on a volume of -a storage or distribution medium does not bring the other work under -the scope of this License. - - 3. You may opt to apply the terms of the ordinary GNU General Public -License instead of this License to a given copy of the Library. To do -this, you must alter all the notices that refer to this License, so -that they refer to the ordinary GNU General Public License, version 2, -instead of to this License. (If a newer version than version 2 of the -ordinary GNU General Public License has appeared, then you can specify -that version instead if you wish.) Do not make any other change in -these notices. - - Once this change is made in a given copy, it is irreversible for -that copy, so the ordinary GNU General Public License applies to all -subsequent copies and derivative works made from that copy. - - This option is useful when you wish to copy part of the code of -the Library into a program that is not a library. - - 4. You may copy and distribute the Library (or a portion or -derivative of it, under Section 2) in object code or executable form -under the terms of Sections 1 and 2 above provided that you accompany -it with the complete corresponding machine-readable source code, which -must be distributed under the terms of Sections 1 and 2 above on a -medium customarily used for software interchange. - - If distribution of object code is made by offering access to copy -from a designated place, then offering equivalent access to copy the -source code from the same place satisfies the requirement to -distribute the source code, even though third parties are not -compelled to copy the source along with the object code. - - 5. A program that contains no derivative of any portion of the -Library, but is designed to work with the Library by being compiled or -linked with it, is called a "work that uses the Library". Such a -work, in isolation, is not a derivative work of the Library, and -therefore falls outside the scope of this License. - - However, linking a "work that uses the Library" with the Library -creates an executable that is a derivative of the Library (because it -contains portions of the Library), rather than a "work that uses the -library". The executable is therefore covered by this License. -Section 6 states terms for distribution of such executables. - - When a "work that uses the Library" uses material from a header file -that is part of the Library, the object code for the work may be a -derivative work of the Library even though the source code is not. -Whether this is true is especially significant if the work can be -linked without the Library, or if the work is itself a library. The -threshold for this to be true is not precisely defined by law. - - If such an object file uses only numerical parameters, data -structure layouts and accessors, and small macros and small inline -functions (ten lines or less in length), then the use of the object -file is unrestricted, regardless of whether it is legally a derivative -work. (Executables containing this object code plus portions of the -Library will still fall under Section 6.) - - Otherwise, if the work is a derivative of the Library, you may -distribute the object code for the work under the terms of Section 6. -Any executables containing that work also fall under Section 6, -whether or not they are linked directly with the Library itself. - - 6. As an exception to the Sections above, you may also compile or -link a "work that uses the Library" with the Library to produce a -work containing portions of the Library, and distribute that work -under terms of your choice, provided that the terms permit -modification of the work for the customer's own use and reverse -engineering for debugging such modifications. - - You must give prominent notice with each copy of the work that the -Library is used in it and that the Library and its use are covered by -this License. You must supply a copy of this License. If the work -during execution displays copyright notices, you must include the -copyright notice for the Library among them, as well as a reference -directing the user to the copy of this License. Also, you must do one -of these things: - - a) Accompany the work with the complete corresponding - machine-readable source code for the Library including whatever - changes were used in the work (which must be distributed under - Sections 1 and 2 above); and, if the work is an executable linked - with the Library, with the complete machine-readable "work that - uses the Library", as object code and/or source code, so that the - user can modify the Library and then relink to produce a modified - executable containing the modified Library. (It is understood - that the user who changes the contents of definitions files in the - Library will not necessarily be able to recompile the application - to use the modified definitions.) - - b) Accompany the work with a written offer, valid for at - least three years, to give the same user the materials - specified in Subsection 6a, above, for a charge no more - than the cost of performing this distribution. - - c) If distribution of the work is made by offering access to copy - from a designated place, offer equivalent access to copy the above - specified materials from the same place. - - d) Verify that the user has already received a copy of these - materials or that you have already sent this user a copy. - - For an executable, the required form of the "work that uses the -Library" must include any data and utility programs needed for -reproducing the executable from it. However, as a special exception, -the source code distributed need not include anything that is normally -distributed (in either source or binary form) with the major -components (compiler, kernel, and so on) of the operating system on -which the executable runs, unless that component itself accompanies -the executable. - - It may happen that this requirement contradicts the license -restrictions of other proprietary libraries that do not normally -accompany the operating system. Such a contradiction means you cannot -use both them and the Library together in an executable that you -distribute. - - 7. You may place library facilities that are a work based on the -Library side-by-side in a single library together with other library -facilities not covered by this License, and distribute such a combined -library, provided that the separate distribution of the work based on -the Library and of the other library facilities is otherwise -permitted, and provided that you do these two things: - - a) Accompany the combined library with a copy of the same work - based on the Library, uncombined with any other library - facilities. This must be distributed under the terms of the - Sections above. - - b) Give prominent notice with the combined library of the fact - that part of it is a work based on the Library, and explaining - where to find the accompanying uncombined form of the same work. - - 8. You may not copy, modify, sublicense, link with, or distribute -the Library except as expressly provided under this License. Any -attempt otherwise to copy, modify, sublicense, link with, or -distribute the Library is void, and will automatically terminate your -rights under this License. However, parties who have received copies, -or rights, from you under this License will not have their licenses -terminated so long as such parties remain in full compliance. - - 9. You are not required to accept this License, since you have not -signed it. However, nothing else grants you permission to modify or -distribute the Library or its derivative works. These actions are -prohibited by law if you do not accept this License. Therefore, by -modifying or distributing the Library (or any work based on the -Library), you indicate your acceptance of this License to do so, and -all its terms and conditions for copying, distributing or modifying -the Library or works based on it. - - 10. Each time you redistribute the Library (or any work based on the -Library), the recipient automatically receives a license from the -original licensor to copy, distribute, link with or modify the Library -subject to these terms and conditions. You may not impose any further -restrictions on the recipients' exercise of the rights granted herein. -You are not responsible for enforcing compliance by third parties to -this License. - - 11. If, as a consequence of a court judgment or allegation of patent -infringement or for any other reason (not limited to patent issues), -conditions are imposed on you (whether by court order, agreement or -otherwise) that contradict the conditions of this License, they do not -excuse you from the conditions of this License. If you cannot -distribute so as to satisfy simultaneously your obligations under this -License and any other pertinent obligations, then as a consequence you -may not distribute the Library at all. For example, if a patent -license would not permit royalty-free redistribution of the Library by -all those who receive copies directly or indirectly through you, then -the only way you could satisfy both it and this License would be to -refrain entirely from distribution of the Library. - -If any portion of this section is held invalid or unenforceable under any -particular circumstance, the balance of the section is intended to apply, -and the section as a whole is intended to apply in other circumstances. - -It is not the purpose of this section to induce you to infringe any -patents or other property right claims or to contest validity of any -such claims; this section has the sole purpose of protecting the -integrity of the free software distribution system which is -implemented by public license practices. Many people have made -generous contributions to the wide range of software distributed -through that system in reliance on consistent application of that -system; it is up to the author/donor to decide if he or she is willing -to distribute software through any other system and a licensee cannot -impose that choice. - -This section is intended to make thoroughly clear what is believed to -be a consequence of the rest of this License. - - 12. If the distribution and/or use of the Library is restricted in -certain countries either by patents or by copyrighted interfaces, the -original copyright holder who places the Library under this License may add -an explicit geographical distribution limitation excluding those countries, -so that distribution is permitted only in or among countries not thus -excluded. In such case, this License incorporates the limitation as if -written in the body of this License. - - 13. The Free Software Foundation may publish revised and/or new -versions of the Library General Public License from time to time. -Such new versions will be similar in spirit to the present version, -but may differ in detail to address new problems or concerns. - -Each version is given a distinguishing version number. If the Library -specifies a version number of this License which applies to it and -"any later version", you have the option of following the terms and -conditions either of that version or of any later version published by -the Free Software Foundation. If the Library does not specify a -license version number, you may choose any version ever published by -the Free Software Foundation. - - 14. If you wish to incorporate parts of the Library into other free -programs whose distribution conditions are incompatible with these, -write to the author to ask for permission. For software which is -copyrighted by the Free Software Foundation, write to the Free -Software Foundation; we sometimes make exceptions for this. Our -decision will be guided by the two goals of preserving the free status -of all derivatives of our free software and of promoting the sharing -and reuse of software generally. - - NO WARRANTY - - 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO -WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. -EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR -OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY -KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE -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. - - - Copyright (C) - - 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. - - , 1 April 1990 - Ty Coon, President of Vice - -That's all there is to it! diff --git a/extras/multipath-tools/ChangeLog b/extras/multipath-tools/ChangeLog deleted file mode 100644 index 0807a426..00000000 --- a/extras/multipath-tools/ChangeLog +++ /dev/null @@ -1,137 +0,0 @@ -2004-03-06 multipath-tools-0.1.1 - * include dlist.h in multipath main.c (PM Hahn) - * typo in hotplug script (PM Hahn) - * pass -9 opt to gzip for manpages (PM Hahn) -2004-03-05 multipath-tools-0.1.0 - * add the group_by_tur policy - * add the multipathd daemon for pathchecking & DM hot-reconfig - * multipath doesn't run twice - * massive cleanups, and code restructuring - * Avoid Kernel Bug when passing too small a buffer in do_inq() - * Sync with 2.6.3-udm4 target synthax (no more PG prio) -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 - * multipath 0.0.1 released. - * Initial release. diff --git a/extras/multipath-tools/Makefile b/extras/multipath-tools/Makefile deleted file mode 100644 index fa883008..00000000 --- a/extras/multipath-tools/Makefile +++ /dev/null @@ -1,43 +0,0 @@ -# Makefile -# -# Copyright (C) 2003 Christophe Varoqui, - -SUBDIRS = libdevmapper devmap_name multipath multipathd - -recurse: - @for dir in $(SUBDIRS); do\ - $(MAKE) -C $$dir ; \ - done - -recurse_clean: - @for dir in $(SUBDIRS); do\ - $(MAKE) -C $$dir clean ; \ - done - -recurse_install: - @for dir in $(SUBDIRS); do\ - $(MAKE) -C $$dir install ; \ - done - -recurse_uninstall: - @for dir in $(SUBDIRS); do\ - $(MAKE) -C $$dir uninstall ; \ - done - -all: recurse - @echo "" - @echo "Make complete" - -clean: recurse_clean - @echo "" - @echo "Make complete" - -spotless: clean - -install: recurse_install - @echo "" - @echo "Make complete" - -uninstall: recurse_uninstall - @echo "" - @echo "Make complete" diff --git a/extras/multipath-tools/README b/extras/multipath-tools/README deleted file mode 100644 index 80945db4..00000000 --- a/extras/multipath-tools/README +++ /dev/null @@ -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. diff --git a/extras/multipath-tools/VERSION b/extras/multipath-tools/VERSION deleted file mode 100644 index bbdeab62..00000000 --- a/extras/multipath-tools/VERSION +++ /dev/null @@ -1 +0,0 @@ -0.0.5 diff --git a/extras/multipath-tools/devmap_name/Makefile b/extras/multipath-tools/devmap_name/Makefile deleted file mode 100644 index e3b70a5e..00000000 --- a/extras/multipath-tools/devmap_name/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -# Makefile -# -# Copyright (C) 2003 Christophe Varoqui, - -EXEC = devmap_name - -prefix = -exec_prefix = ${prefix} -bindir = ${exec_prefix}/sbin -udevdir = ../../.. -klibcdir = $(udevdir)/klibc -mandir = /usr/share/man/man8 -libdmdir = ../libdevmapper - -CC = gcc -GZIP = /bin/gzip -9 -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 = devmap_name.o -CRT0 = $(klibcdir)/klibc/crt0.o -LIB = $(klibcdir)/klibc/libc.a -LIBGCC := $(shell $(CC) -print-libgcc-file-name ) - -DMOBJS = $(libdmdir)/libdm-common.o $(libdmdir)/ioctl/libdevmapper.o - -$(EXEC): $(OBJS) - $(LD) -o $(EXEC) $(CRT0) $(OBJS) $(DMOBJS) $(LIB) $(LIBGCC) - strip $(EXEC) - $(GZIP) $(EXEC).8 > $(EXEC).8.gz - -clean: - rm -f core *.o $(EXEC) *.gz - -spotless: clean - -install: - install -d $(DESTDIR)$(bindir) - install -m 755 $(EXEC) $(DESTDIR)$(bindir)/ - install -d $(DESTDIR)$(mandir) - install -m 644 $(EXEC).8.gz $(DESTDIR)$(mandir) - -uninstall: - rm $(DESTDIR)$(bindir)/$(EXEC) - rm $(DESTDIR)$(mandir)/$(EXEC).8.gz diff --git a/extras/multipath-tools/devmap_name/devmap_name.8 b/extras/multipath-tools/devmap_name/devmap_name.8 deleted file mode 100644 index f4f03c3e..00000000 --- a/extras/multipath-tools/devmap_name/devmap_name.8 +++ /dev/null @@ -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, and others. diff --git a/extras/multipath-tools/devmap_name/devmap_name.c b/extras/multipath-tools/devmap_name/devmap_name.c deleted file mode 100644 index 0932e4f8..00000000 --- a/extras/multipath-tools/devmap_name/devmap_name.c +++ /dev/null @@ -1,60 +0,0 @@ -#include -#include -#include -#include - -#include "../libdevmapper/libdevmapper.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; -} - diff --git a/extras/multipath-tools/libdevmapper/Makefile b/extras/multipath-tools/libdevmapper/Makefile deleted file mode 100644 index 4a8b7723..00000000 --- a/extras/multipath-tools/libdevmapper/Makefile +++ /dev/null @@ -1,30 +0,0 @@ -# Makefile -# -# Copyright (C) 2003 Christophe Varoqui, - -CC = gcc -udevdir = ../../.. -klibcdir = $(udevdir)/klibc - -CC = gcc -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. -Iioctl - -OBJS = ioctl/libdevmapper.o libdm-common.o - -all: $(OBJS) - @echo "" - @echo "Make complete" - -clean: - rm -f core *.o ioctl/*.o ioctl/*.so - -spotless: clean - -install: - -uninstall: diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c b/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c deleted file mode 100644 index ac7ba0c8..00000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c +++ /dev/null @@ -1,1092 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#include "libdm-targets.h" -#include "libdm-common.h" - -#ifdef DM_COMPAT -# include "libdm-compat.h" -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef linux -# include -# include -# include -#else -# define MAJOR(x) major((x)) -# define MINOR(x) minor((x)) -# define MKDEV(x,y) makedev((x),(y)) -#endif - -/* - * Ensure build compatibility. - * The hard-coded versions here are the highest present - * in the _cmd_data arrays. - */ - -#if !((DM_VERSION_MAJOR == 1 && DM_VERSION_MINOR >= 0) || \ - (DM_VERSION_MAJOR == 4 && DM_VERSION_MINOR >= 0)) -#error The version of dm-ioctl.h included is incompatible. -#endif - -/* dm major version no for running kernel */ -static int _dm_version = DM_VERSION_MAJOR; -static int _log_suppress = 0; - -static int _control_fd = -1; -static int _version_checked = 0; -static int _version_ok = 1; - -/* - * Support both old and new major numbers to ease the transition. - * Clumsy, but only temporary. - */ -#if DM_VERSION_MAJOR == 4 && defined(DM_COMPAT) -const int _dm_compat = 1; -#else -const int _dm_compat = 0; -#endif - - -/* *INDENT-OFF* */ -static struct cmd_data _cmd_data_v4[] = { - {"create", DM_DEV_CREATE, {4, 0, 0}}, - {"reload", DM_TABLE_LOAD, {4, 0, 0}}, - {"remove", DM_DEV_REMOVE, {4, 0, 0}}, - {"remove_all", DM_REMOVE_ALL, {4, 0, 0}}, - {"suspend", DM_DEV_SUSPEND, {4, 0, 0}}, - {"resume", DM_DEV_SUSPEND, {4, 0, 0}}, - {"info", DM_DEV_STATUS, {4, 0, 0}}, - {"deps", DM_TABLE_DEPS, {4, 0, 0}}, - {"rename", DM_DEV_RENAME, {4, 0, 0}}, - {"version", DM_VERSION, {4, 0, 0}}, - {"status", DM_TABLE_STATUS, {4, 0, 0}}, - {"table", DM_TABLE_STATUS, {4, 0, 0}}, - {"waitevent", DM_DEV_WAIT, {4, 0, 0}}, - {"names", DM_LIST_DEVICES, {4, 0, 0}}, - {"clear", DM_TABLE_CLEAR, {4, 0, 0}}, - {"mknodes", DM_DEV_STATUS, {4, 0, 0}}, -}; -/* *INDENT-ON* */ - -#define ALIGNMENT_V1 sizeof(int) -#define ALIGNMENT 8 - -/* FIXME Rejig library to record & use errno instead */ -#ifndef DM_EXISTS_FLAG -# define DM_EXISTS_FLAG 0x00000004 -#endif - -static void *_align(void *ptr, unsigned int a) -{ - register unsigned long agn = --a; - - return (void *) (((unsigned long) ptr + agn) & ~agn); -} - -static int _open_control(void) -{ - char control[PATH_MAX]; - - if (_control_fd != -1) - return 1; - - snprintf(control, sizeof(control), "%s/control", dm_dir()); - - if ((_control_fd = open(control, O_RDWR)) < 0) { - log_error("%s: open failed: %s", control, strerror(errno)); - log_error("Is device-mapper driver missing from kernel?"); - return 0; - } - - return 1; -} - -void dm_task_destroy(struct dm_task *dmt) -{ - struct target *t, *n; - - for (t = dmt->head; t; t = n) { - n = t->next; - free(t->params); - free(t->type); - free(t); - } - - if (dmt->dev_name) - free(dmt->dev_name); - - if (dmt->newname) - free(dmt->newname); - - if (dmt->dmi.v4) - free(dmt->dmi.v4); - - if (dmt->uuid) - free(dmt->uuid); - - free(dmt); -} - -/* - * Protocol Version 1 compatibility functions. - */ - -#ifdef DM_COMPAT - -static int _dm_task_get_driver_version_v1(struct dm_task *dmt, char *version, - size_t size) -{ - unsigned int *v; - - if (!dmt->dmi.v1) { - version[0] = '\0'; - return 0; - } - - v = dmt->dmi.v1->version; - snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]); - return 1; -} - -/* Unmarshall the target info returned from a status call */ -static int _unmarshal_status_v1(struct dm_task *dmt, struct dm_ioctl_v1 *dmi) -{ - char *outbuf = (char *) dmi + dmi->data_start; - char *outptr = outbuf; - int32_t i; - struct dm_target_spec_v1 *spec; - - for (i = 0; i < dmi->target_count; i++) { - spec = (struct dm_target_spec_v1 *) outptr; - - if (!dm_task_add_target(dmt, spec->sector_start, - (uint64_t) spec->length, - spec->target_type, - outptr + sizeof(*spec))) - return 0; - - outptr = outbuf + spec->next; - } - - return 1; -} - -static int _dm_format_dev_v1(char *buf, int bufsize, uint32_t dev_major, - uint32_t dev_minor) -{ - int r; - - if (bufsize < 8) - return 0; - - r = snprintf(buf, bufsize, "%03x:%03x", dev_major, dev_minor); - if (r < 0 || r > bufsize - 1) - return 0; - - return 1; -} - -static int _dm_task_get_info_v1(struct dm_task *dmt, struct dm_info *info) -{ - if (!dmt->dmi.v1) - return 0; - - memset(info, 0, sizeof(*info)); - - info->exists = dmt->dmi.v1->flags & DM_EXISTS_FLAG ? 1 : 0; - if (!info->exists) - return 1; - - info->suspended = dmt->dmi.v1->flags & DM_SUSPEND_FLAG ? 1 : 0; - info->read_only = dmt->dmi.v1->flags & DM_READONLY_FLAG ? 1 : 0; - info->target_count = dmt->dmi.v1->target_count; - info->open_count = dmt->dmi.v1->open_count; - info->event_nr = 0; - info->major = MAJOR(dmt->dmi.v1->dev); - info->minor = MINOR(dmt->dmi.v1->dev); - info->live_table = 1; - info->inactive_table = 0; - - return 1; -} - -static const char *_dm_task_get_name_v1(struct dm_task *dmt) -{ - return (dmt->dmi.v1->name); -} - -static const char *_dm_task_get_uuid_v1(struct dm_task *dmt) -{ - return (dmt->dmi.v1->uuid); -} - -static struct dm_deps *_dm_task_get_deps_v1(struct dm_task *dmt) -{ - log_error("deps version 1 no longer supported by libdevmapper"); - return NULL; -} - -static struct dm_names *_dm_task_get_names_v1(struct dm_task *dmt) -{ - return (struct dm_names *) (((void *) dmt->dmi.v1) + - dmt->dmi.v1->data_start); -} - -static void *_add_target_v1(struct target *t, void *out, void *end) -{ - void *out_sp = out; - struct dm_target_spec_v1 sp; - size_t sp_size = sizeof(struct dm_target_spec_v1); - int len; - const char no_space[] = "Ran out of memory building ioctl parameter"; - - out += sp_size; - if (out >= end) { - log_error(no_space); - return NULL; - } - - sp.status = 0; - sp.sector_start = t->start; - sp.length = t->length; - strncpy(sp.target_type, t->type, sizeof(sp.target_type)); - - len = strlen(t->params); - - if ((out + len + 1) >= end) { - log_error(no_space); - - log_error("t->params= '%s'", t->params); - return NULL; - } - strcpy((char *) out, t->params); - out += len + 1; - - /* align next block */ - out = _align(out, ALIGNMENT_V1); - - sp.next = out - out_sp; - - memcpy(out_sp, &sp, sp_size); - - return out; -} - -static struct dm_ioctl_v1 *_flatten_v1(struct dm_task *dmt) -{ - const size_t min_size = 16 * 1024; - const int (*version)[3]; - - struct dm_ioctl_v1 *dmi; - struct target *t; - size_t len = sizeof(struct dm_ioctl_v1); - void *b, *e; - int count = 0; - - for (t = dmt->head; t; t = t->next) { - len += sizeof(struct dm_target_spec_v1); - len += strlen(t->params) + 1 + ALIGNMENT_V1; - count++; - } - - if (count && dmt->newname) { - log_error("targets and newname are incompatible"); - return NULL; - } - - if (dmt->newname) - len += strlen(dmt->newname) + 1; - - /* - * Give len a minimum size so that we have space to store - * dependencies or status information. - */ - if (len < min_size) - len = min_size; - - if (!(dmi = malloc(len))) - return NULL; - - memset(dmi, 0, len); - - version = &_cmd_data_v1[dmt->type].version; - - dmi->version[0] = (*version)[0]; - dmi->version[1] = (*version)[1]; - dmi->version[2] = (*version)[2]; - - dmi->data_size = len; - dmi->data_start = sizeof(struct dm_ioctl_v1); - - if (dmt->dev_name) - strncpy(dmi->name, dmt->dev_name, sizeof(dmi->name)); - - if (dmt->type == DM_DEVICE_SUSPEND) - dmi->flags |= DM_SUSPEND_FLAG; - if (dmt->read_only) - dmi->flags |= DM_READONLY_FLAG; - - if (dmt->minor >= 0) { - if (dmt->major <= 0) { - log_error("Missing major number for persistent device"); - return NULL; - } - dmi->flags |= DM_PERSISTENT_DEV_FLAG; - dmi->dev = MKDEV(dmt->major, dmt->minor); - } - - if (dmt->uuid) - strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid)); - - dmi->target_count = count; - - b = (void *) (dmi + 1); - e = (void *) ((char *) dmi + len); - - for (t = dmt->head; t; t = t->next) - if (!(b = _add_target_v1(t, b, e))) - goto bad; - - if (dmt->newname) - strcpy(b, dmt->newname); - - return dmi; - - bad: - free(dmi); - return NULL; -} - -static int _dm_names_v1(struct dm_ioctl_v1 *dmi) -{ - const char *dev_dir = dm_dir(); - int r = 1, len; - const char *name; - struct dirent *dirent; - DIR *d; - struct dm_names *names, *old_names = NULL; - void *end = (void *) dmi + dmi->data_size; - struct stat buf; - char path[PATH_MAX]; - - if (!(d = opendir(dev_dir))) { - log_error("%s: opendir failed: %s", dev_dir, strerror(errno)); - return 0; - } - - names = (struct dm_names *) ((void *) dmi + dmi->data_start); - - names->dev = 0; /* Flags no data */ - - while ((dirent = readdir(d))) { - name = dirent->d_name; - - if (name[0] == '.' || !strcmp(name, "control")) - continue; - - if (old_names) - old_names->next = (uint32_t) ((void *) names - - (void *) old_names); - snprintf(path, sizeof(path), "%s/%s", dev_dir, name); - if (stat(path, &buf)) { - log_error("%s: stat failed: %s", path, strerror(errno)); - continue; - } - if (!S_ISBLK(buf.st_mode)) - continue; - names->dev = (uint64_t) buf.st_rdev; - names->next = 0; - len = strlen(name); - if (((void *) (names + 1) + len + 1) >= end) { - log_error("Insufficient buffer space for device list"); - r = 0; - break; - } - - strcpy(names->name, name); - - old_names = names; - names = _align((void *) ++names + len + 1, ALIGNMENT); - } - - if (closedir(d)) - log_error("%s: closedir failed: %s", dev_dir, strerror(errno)); - - return r; -} - -static int _dm_task_run_v1(struct dm_task *dmt) -{ - struct dm_ioctl_v1 *dmi; - unsigned int command; - - dmi = _flatten_v1(dmt); - if (!dmi) { - log_error("Couldn't create ioctl argument"); - return 0; - } - - if (!_open_control()) - return 0; - - if ((unsigned) dmt->type >= - (sizeof(_cmd_data_v1) / sizeof(*_cmd_data_v1))) { - log_error("Internal error: unknown device-mapper task %d", - dmt->type); - goto bad; - } - - command = _cmd_data_v1[dmt->type].cmd; - - if (dmt->type == DM_DEVICE_TABLE) - dmi->flags |= DM_STATUS_TABLE_FLAG; - - log_debug("dm %s %s %s %s", _cmd_data_v1[dmt->type].name, dmi->name, - dmi->uuid, dmt->newname ? dmt->newname : ""); - if (dmt->type == DM_DEVICE_LIST) { - if (!_dm_names_v1(dmi)) - goto bad; - } else if (ioctl(_control_fd, command, dmi) < 0) { - if (_log_suppress) - log_verbose("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - else - log_error("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - goto bad; - } - - switch (dmt->type) { - case DM_DEVICE_CREATE: - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev)); - break; - - case DM_DEVICE_REMOVE: - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_RENAME: - rename_dev_node(dmt->dev_name, dmt->newname); - break; - - case DM_DEVICE_MKNODES: - if (dmi->flags & DM_EXISTS_FLAG) - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), - MINOR(dmi->dev)); - else - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_STATUS: - case DM_DEVICE_TABLE: - if (!_unmarshal_status_v1(dmt, dmi)) - goto bad; - break; - - case DM_DEVICE_SUSPEND: - case DM_DEVICE_RESUME: - dmt->type = DM_DEVICE_INFO; - if (!dm_task_run(dmt)) - goto bad; - free(dmi); /* We'll use what info returned */ - return 1; - } - - dmt->dmi.v1 = dmi; - return 1; - - bad: - free(dmi); - return 0; -} - -#endif - -/* - * Protocol Version 4 functions. - */ - -int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size) -{ - unsigned int *v; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_driver_version_v1(dmt, version, size); -#endif - - if (!dmt->dmi.v4) { - version[0] = '\0'; - return 0; - } - - v = dmt->dmi.v4->version; - snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]); - return 1; -} - -static int _check_version(char *version, size_t size, int log_suppress) -{ - struct dm_task *task; - int r; - - if (!(task = dm_task_create(DM_DEVICE_VERSION))) { - log_error("Failed to get device-mapper version"); - version[0] = '\0'; - return 0; - } - - if (log_suppress) - _log_suppress = 1; - - r = dm_task_run(task); - dm_task_get_driver_version(task, version, size); - dm_task_destroy(task); - _log_suppress = 0; - - return r; -} - -/* - * Find out device-mapper's major version number the first time - * this is called and whether or not we support it. - */ -int dm_check_version(void) -{ - char libversion[64], dmversion[64]; - const char *compat = ""; - - if (_version_checked) - return _version_ok; - - _version_checked = 1; - - if (_check_version(dmversion, sizeof(dmversion), _dm_compat)) - return 1; - - if (!_dm_compat) - goto bad; - - log_verbose("device-mapper ioctl protocol version %d failed. " - "Trying protocol version 1.", _dm_version); - _dm_version = 1; - if (_check_version(dmversion, sizeof(dmversion), 0)) { - log_verbose("Using device-mapper ioctl protocol version 1"); - return 1; - } - - compat = "(compat)"; - - dm_get_library_version(libversion, sizeof(libversion)); - - log_error("Incompatible libdevmapper %s%s and kernel driver %s", - libversion, compat, dmversion); - - bad: - _version_ok = 0; - return 0; -} - -void *dm_get_next_target(struct dm_task *dmt, void *next, - uint64_t *start, uint64_t *length, - char **target_type, char **params) -{ - struct target *t = (struct target *) next; - - if (!t) - t = dmt->head; - - if (!t) - return NULL; - - *start = t->start; - *length = t->length; - *target_type = t->type; - *params = t->params; - - return t->next; -} - -/* Unmarshall the target info returned from a status call */ -static int _unmarshal_status(struct dm_task *dmt, struct dm_ioctl *dmi) -{ - char *outbuf = (char *) dmi + dmi->data_start; - char *outptr = outbuf; - uint32_t i; - struct dm_target_spec *spec; - - for (i = 0; i < dmi->target_count; i++) { - spec = (struct dm_target_spec *) outptr; - if (!dm_task_add_target(dmt, spec->sector_start, - spec->length, - spec->target_type, - outptr + sizeof(*spec))) - return 0; - - outptr = outbuf + spec->next; - } - - return 1; -} - -int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, - uint32_t dev_minor) -{ - int r; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_format_dev_v1(buf, bufsize, dev_major, dev_minor); -#endif - - if (bufsize < 8) - return 0; - - r = snprintf(buf, bufsize, "%03u:%03u", dev_major, dev_minor); - if (r < 0 || r > bufsize - 1) - return 0; - - return 1; -} - -int dm_task_get_info(struct dm_task *dmt, struct dm_info *info) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_info_v1(dmt, info); -#endif - - if (!dmt->dmi.v4) - return 0; - - memset(info, 0, sizeof(*info)); - - info->exists = dmt->dmi.v4->flags & DM_EXISTS_FLAG ? 1 : 0; - if (!info->exists) - return 1; - - info->suspended = dmt->dmi.v4->flags & DM_SUSPEND_FLAG ? 1 : 0; - info->read_only = dmt->dmi.v4->flags & DM_READONLY_FLAG ? 1 : 0; - info->live_table = dmt->dmi.v4->flags & DM_ACTIVE_PRESENT_FLAG ? 1 : 0; - info->inactive_table = dmt->dmi.v4->flags & DM_INACTIVE_PRESENT_FLAG ? - 1 : 0; - info->target_count = dmt->dmi.v4->target_count; - info->open_count = dmt->dmi.v4->open_count; - info->event_nr = dmt->dmi.v4->event_nr; - info->major = MAJOR(dmt->dmi.v4->dev); - info->minor = MINOR(dmt->dmi.v4->dev); - - return 1; -} - -const char *dm_task_get_name(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_name_v1(dmt); -#endif - - return (dmt->dmi.v4->name); -} - -const char *dm_task_get_uuid(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_uuid_v1(dmt); -#endif - - return (dmt->dmi.v4->uuid); -} - -struct dm_deps *dm_task_get_deps(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_deps_v1(dmt); -#endif - - return (struct dm_deps *) (((void *) dmt->dmi.v4) + - dmt->dmi.v4->data_start); -} - -struct dm_names *dm_task_get_names(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_names_v1(dmt); -#endif - - return (struct dm_names *) (((void *) dmt->dmi.v4) + - dmt->dmi.v4->data_start); -} - -int dm_task_set_ro(struct dm_task *dmt) -{ - dmt->read_only = 1; - return 1; -} - -int dm_task_set_newname(struct dm_task *dmt, const char *newname) -{ - if (!(dmt->newname = strdup(newname))) { - log_error("dm_task_set_newname: strdup(%s) failed", newname); - return 0; - } - - return 1; -} - -int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr) -{ - dmt->event_nr = event_nr; - - return 1; -} - -struct target *create_target(uint64_t start, uint64_t len, const char *type, - const char *params) -{ - struct target *t = malloc(sizeof(*t)); - - if (!t) { - log_error("create_target: malloc(%d) failed", sizeof(*t)); - return NULL; - } - - memset(t, 0, sizeof(*t)); - - if (!(t->params = strdup(params))) { - log_error("create_target: strdup(params) failed"); - goto bad; - } - - if (!(t->type = strdup(type))) { - log_error("create_target: strdup(type) failed"); - goto bad; - } - - t->start = start; - t->length = len; - return t; - - bad: - free(t->params); - free(t->type); - free(t); - return NULL; -} - -static void *_add_target(struct target *t, void *out, void *end) -{ - void *out_sp = out; - struct dm_target_spec sp; - size_t sp_size = sizeof(struct dm_target_spec); - int len; - const char no_space[] = "Ran out of memory building ioctl parameter"; - - out += sp_size; - if (out >= end) { - log_error(no_space); - return NULL; - } - - sp.status = 0; - sp.sector_start = t->start; - sp.length = t->length; - strncpy(sp.target_type, t->type, sizeof(sp.target_type)); - - len = strlen(t->params); - - if ((out + len + 1) >= end) { - log_error(no_space); - - log_error("t->params= '%s'", t->params); - return NULL; - } - strcpy((char *) out, t->params); - out += len + 1; - - /* align next block */ - out = _align(out, ALIGNMENT); - - sp.next = out - out_sp; - memcpy(out_sp, &sp, sp_size); - - return out; -} - -static struct dm_ioctl *_flatten(struct dm_task *dmt) -{ - const size_t min_size = 16 * 1024; - const int (*version)[3]; - - struct dm_ioctl *dmi; - struct target *t; - size_t len = sizeof(struct dm_ioctl); - void *b, *e; - int count = 0; - - for (t = dmt->head; t; t = t->next) { - len += sizeof(struct dm_target_spec); - len += strlen(t->params) + 1 + ALIGNMENT; - count++; - } - - if (count && dmt->newname) { - log_error("targets and newname are incompatible"); - return NULL; - } - - if (dmt->newname) - len += strlen(dmt->newname) + 1; - - /* - * Give len a minimum size so that we have space to store - * dependencies or status information. - */ - if (len < min_size) - len = min_size; - - if (!(dmi = malloc(len))) - return NULL; - - memset(dmi, 0, len); - - version = &_cmd_data_v4[dmt->type].version; - - dmi->version[0] = (*version)[0]; - dmi->version[1] = (*version)[1]; - dmi->version[2] = (*version)[2]; - - dmi->data_size = len; - dmi->data_start = sizeof(struct dm_ioctl); - - if (dmt->dev_name) - strncpy(dmi->name, dmt->dev_name, sizeof(dmi->name)); - - if (dmt->type == DM_DEVICE_SUSPEND) - dmi->flags |= DM_SUSPEND_FLAG; - if (dmt->read_only) - dmi->flags |= DM_READONLY_FLAG; - - if (dmt->minor >= 0) { - if (dmt->major <= 0) { - log_error("Missing major number for persistent device"); - return NULL; - } - dmi->flags |= DM_PERSISTENT_DEV_FLAG; - dmi->dev = MKDEV(dmt->major, dmt->minor); - } - - if (dmt->uuid) - strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid)); - - dmi->target_count = count; - dmi->event_nr = dmt->event_nr; - - b = (void *) (dmi + 1); - e = (void *) ((char *) dmi + len); - - for (t = dmt->head; t; t = t->next) - if (!(b = _add_target(t, b, e))) - goto bad; - - if (dmt->newname) - strcpy(b, dmt->newname); - - return dmi; - - bad: - free(dmi); - return NULL; -} - -static int _create_and_load_v4(struct dm_task *dmt) -{ - struct dm_task *task; - int r; - - /* Use new task struct to create the device */ - if (!(task = dm_task_create(DM_DEVICE_CREATE))) { - log_error("Failed to create device-mapper task struct"); - return 0; - } - - /* Copy across relevant fields */ - if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) { - dm_task_destroy(task); - return 0; - } - - if (dmt->uuid && !dm_task_set_uuid(task, dmt->uuid)) { - dm_task_destroy(task); - return 0; - } - - task->major = dmt->major; - task->minor = dmt->minor; - - r = dm_task_run(task); - dm_task_destroy(task); - if (!r) - return r; - - /* Next load the table */ - if (!(task = dm_task_create(DM_DEVICE_RELOAD))) { - log_error("Failed to create device-mapper task struct"); - return 0; - } - - /* Copy across relevant fields */ - if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) { - dm_task_destroy(task); - return 0; - } - - task->read_only = dmt->read_only; - task->head = dmt->head; - task->tail = dmt->tail; - - r = dm_task_run(task); - - task->head = NULL; - task->tail = NULL; - dm_task_destroy(task); - if (!r) - return r; - - /* Use the original structure last so the info will be correct */ - dmt->type = DM_DEVICE_RESUME; - dmt->uuid = NULL; - free(dmt->uuid); - - r = dm_task_run(dmt); - - return r; -} - -int dm_task_run(struct dm_task *dmt) -{ - struct dm_ioctl *dmi = NULL; - unsigned int command; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_run_v1(dmt); -#endif - - if ((unsigned) dmt->type >= - (sizeof(_cmd_data_v4) / sizeof(*_cmd_data_v4))) { - log_error("Internal error: unknown device-mapper task %d", - dmt->type); - goto bad; - } - - command = _cmd_data_v4[dmt->type].cmd; - - /* Old-style creation had a table supplied */ - if (dmt->type == DM_DEVICE_CREATE && dmt->head) - return _create_and_load_v4(dmt); - - if (!_open_control()) - return 0; - - dmi = _flatten(dmt); - if (!dmi) { - log_error("Couldn't create ioctl argument"); - return 0; - } - - if (dmt->type == DM_DEVICE_TABLE) - dmi->flags |= DM_STATUS_TABLE_FLAG; - - dmi->flags |= DM_EXISTS_FLAG; /* FIXME */ - log_debug("dm %s %s %s %s", _cmd_data_v4[dmt->type].name, dmi->name, - dmi->uuid, dmt->newname ? dmt->newname : ""); - if (ioctl(_control_fd, command, dmi) < 0) { - if (errno == ENXIO && ((dmt->type == DM_DEVICE_INFO) || - (dmt->type == DM_DEVICE_MKNODES))) { - dmi->flags &= ~DM_EXISTS_FLAG; /* FIXME */ - goto ignore_error; - } - if (_log_suppress) - log_verbose("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - else - log_error("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - goto bad; - } - - ignore_error: - switch (dmt->type) { - case DM_DEVICE_CREATE: - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev)); - break; - - case DM_DEVICE_REMOVE: - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_RENAME: - rename_dev_node(dmt->dev_name, dmt->newname); - break; - - case DM_DEVICE_MKNODES: - if (dmi->flags & DM_EXISTS_FLAG) - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), - MINOR(dmi->dev)); - else - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_STATUS: - case DM_DEVICE_TABLE: - case DM_DEVICE_WAITEVENT: - if (!_unmarshal_status(dmt, dmi)) - goto bad; - break; - } - - dmt->dmi.v4 = dmi; - return 1; - - bad: - free(dmi); - return 0; -} - -void dm_lib_release(void) -{ - if (_control_fd != -1) { - close(_control_fd); - _control_fd = -1; - } - update_devs(); -} - -void dm_lib_exit(void) -{ - if (_control_fd != -1) { - close(_control_fd); - _control_fd = -1; - } - _version_ok = 1; - _version_checked = 0; -} diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h b/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h deleted file mode 100644 index af7a9f1f..00000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h +++ /dev/null @@ -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 -#include -#include -#include - -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 diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h b/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h deleted file mode 100644 index a8c0e205..00000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h +++ /dev/null @@ -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 - -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 diff --git a/extras/multipath-tools/libdevmapper/libdevmapper.h b/extras/multipath-tools/libdevmapper/libdevmapper.h deleted file mode 100644 index 6549af36..00000000 --- a/extras/multipath-tools/libdevmapper/libdevmapper.h +++ /dev/null @@ -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 -#include - -#ifdef linux -# include -#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 */ diff --git a/extras/multipath-tools/libdevmapper/libdm-common.c b/extras/multipath-tools/libdevmapper/libdm-common.c deleted file mode 100644 index b0affd1e..00000000 --- a/extras/multipath-tools/libdevmapper/libdm-common.c +++ /dev/null @@ -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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#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; -} diff --git a/extras/multipath-tools/libdevmapper/libdm-common.h b/extras/multipath-tools/libdevmapper/libdm-common.h deleted file mode 100644 index 2b712428..00000000 --- a/extras/multipath-tools/libdevmapper/libdm-common.h +++ /dev/null @@ -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 diff --git a/extras/multipath-tools/libdevmapper/list.h b/extras/multipath-tools/libdevmapper/list.h deleted file mode 100644 index df3d32ae..00000000 --- a/extras/multipath-tools/libdevmapper/list.h +++ /dev/null @@ -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 - -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 diff --git a/extras/multipath-tools/multipath/Makefile b/extras/multipath-tools/multipath/Makefile deleted file mode 100644 index 4c0fae6d..00000000 --- a/extras/multipath-tools/multipath/Makefile +++ /dev/null @@ -1,62 +0,0 @@ -# Makefile -# -# Copyright (C) 2003 Christophe Varoqui, - -EXEC = multipath - -prefix = -exec_prefix = ${prefix} -bindir = ${exec_prefix}/sbin -udevdir = ../../.. -klibcdir = $(udevdir)/klibc -sysfsdir = $(udevdir)/libsysfs -mandir = /usr/share/man/man8 -libdmdir = ../libdevmapper -arch = i386 -klibcarch = $(klibcdir)/klibc/arch/$(arch)/include - -CC = gcc -GZIP = /bin/gzip -9 -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. -I$(klibcarch) - -OBJS = devinfo.o main.o -CRT0 = $(klibcdir)/klibc/crt0.o -LIB = $(klibcdir)/klibc/libc.a -LIBGCC := $(shell $(CC) -print-libgcc-file-name ) - -DMOBJS = $(libdmdir)/libdm-common.o $(libdmdir)/ioctl/libdevmapper.o -SYSFSOBJS = $(sysfsdir)/dlist.o $(sysfsdir)/sysfs_bus.o \ - $(sysfsdir)/sysfs_class.o $(sysfsdir)/sysfs_device.o \ - $(sysfsdir)/sysfs_dir.o $(sysfsdir)/sysfs_driver.o \ - $(sysfsdir)/sysfs_utils.o - -$(EXEC): $(OBJS) - $(LD) -o $(EXEC) $(CRT0) $(OBJS) $(SYSFSOBJS) $(DMOBJS) $(LIB) $(LIBGCC) - strip $(EXEC) - $(GZIP) $(EXEC).8 > $(EXEC).8.gz - -clean: - rm -f core *.o $(EXEC) *.gz - -spotless: clean - -install: - install -d $(DESTDIR)$(bindir) - install -m 755 $(EXEC) $(DESTDIR)$(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 multipath.8.gz $(DESTDIR)$(mandir) - -uninstall: - rm $(DESTDIR)/etc/hotplug.d/scsi/multipath.hotplug - rm $(DESTDIR)$(bindir)/$(EXEC) - rm $(DESTDIR)$(mandir)/multipath.8.gz - -# Code dependencies -main.o: main.c main.h sg_include.h devinfo.h diff --git a/extras/multipath-tools/multipath/devinfo.c b/extras/multipath-tools/multipath/devinfo.c deleted file mode 100644 index 21890621..00000000 --- a/extras/multipath-tools/multipath/devinfo.c +++ /dev/null @@ -1,240 +0,0 @@ -#include -#include -#include -#include -#include -#include -#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[MX_ALLOC_LEN + 1]; - - if ((fd = open(devname, O_RDONLY)) < 0) - return 0; - - if (0 == do_inq(fd, 0, 1, 0x83, buff, MX_ALLOC_LEN, 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; -} - -int -do_tur(char *dev) -{ - unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; - struct sg_io_hdr io_hdr; - unsigned char sense_buffer[32]; - int fd; - - fd = open(dev, O_RDONLY); - - if (fd < 0) - return 0; - - 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; - } - - close(fd); - - if (io_hdr.info & SG_INFO_OK_MASK) - return 0; - - return 1; -} diff --git a/extras/multipath-tools/multipath/devinfo.h b/extras/multipath-tools/multipath/devinfo.h deleted file mode 100644 index ee17aba9..00000000 --- a/extras/multipath-tools/multipath/devinfo.h +++ /dev/null @@ -1,21 +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) -#define TUR_CMD_LEN 6 - -/* 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 *); -int do_tur (char *); diff --git a/extras/multipath-tools/multipath/main.c b/extras/multipath-tools/multipath/main.c deleted file mode 100644 index 8f06a8f9..00000000 --- a/extras/multipath-tools/multipath/main.c +++ /dev/null @@ -1,895 +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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#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_TUR, &get_evpd_wwid}, - {"COMPAQ ", "MSA1000 ", GROUP_BY_TUR, &get_evpd_wwid}, - {"COMPAQ ", "MSA1000 VOLUME ", GROUP_BY_TUR, &get_evpd_wwid}, - {"DEC ", "HSG80 ", GROUP_BY_TUR, &get_evpd_wwid}, - {"HP ", "HSV100 ", GROUP_BY_TUR, &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 -sysfsdevice2devname (char *devname, char *device) -{ - char sysfs_path[FILE_NAME_SIZE]; - char block_path[FILE_NAME_SIZE]; - char link_path[FILE_NAME_SIZE]; - int r; - - if (sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) { - fprintf(stderr, "[device] feature available with sysfs only\n"); - exit (1); - } - - sprintf(link_path, "%s%s/block", sysfs_path, device); - - r = sysfs_get_link(link_path, block_path, FILE_NAME_SIZE); - - if (r != 0) - return 1; - - sysfs_get_name_from_path(block_path, devname, FILE_NAME_SIZE); - - return 0; -} - - -static int -devt2devname (char *devname, int major, int minor) -{ - struct sysfs_directory * sdir; - struct sysfs_directory * devp; - char sysfs_path[FILE_NAME_SIZE]; - char block_path[FILE_NAME_SIZE]; - char attr_path[FILE_NAME_SIZE]; - char attr_value[16]; - char attr_ref_value[16]; - - if (sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) { - fprintf(stderr, "-D feature available with sysfs only\n"); - exit (1); - } - - sprintf(attr_ref_value, "%i:%i\n", major, minor); - sprintf(block_path, "%s/block", sysfs_path); - sdir = sysfs_open_directory(block_path); - sysfs_read_directory(sdir); - - dlist_for_each_data(sdir->subdirs, devp, struct sysfs_directory) { - sprintf(attr_path, "%s/%s/dev", block_path, devp->name); - sysfs_read_attribute_value(attr_path, attr_value, 16); - - if (!strcmp(attr_value, attr_ref_value)) { - sprintf(attr_path, "%s/%s", block_path, devp->name); - sysfs_get_name_from_path(attr_path, devname, FILE_NAME_SIZE); - break; - } - } - - sysfs_close_directory(sdir); - - return 0; -} - -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 -devinfo (struct path *curpath) -{ - get_lun_strings(curpath->vendor_id, - curpath->product_id, - curpath->rev, - curpath->sg_dev); - get_serial(curpath->serial, curpath->sg_dev); - curpath->tur = do_tur(curpath->sg_dev); - if (!get_unique_id(curpath)) - 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; - - memset(empty_buff, 0, WWID_SIZE); - memset(refwwid, 0, WWID_SIZE); - - /* if called from hotplug, only consider the paths that relate - to the device pointed by conf.hotplugdev */ - - if (strncmp("/devices", conf->hotplugdev, 8) == 0) { - if (sysfsdevice2devname (buff, conf->hotplugdev)) - return 0; - - sprintf(curpath.sg_dev, "/dev/%s", buff); - - if (devinfo(&curpath)) - return 0; - - strcpy(refwwid, curpath.wwid); - memset(&curpath, 0, sizeof(path)); - } - - /* if major/minor specified on the cmd line, - only consider affiliated paths */ - - if (conf->major >= 0 && conf->minor >= 0) { - if (devt2devname(buff, conf->major, conf->minor)) - return 0; - - sprintf(curpath.sg_dev, "/dev/%s", buff); - - if (devinfo(&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); - - if(devinfo(&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; - all_paths[k].tur = curpath.tur; - - /* 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_tur(struct multipath * mp, struct path * all_paths, char * str) { - int left_path_count = 0; - int right_path_count = 0; - int i; - char left_path_buff[FILE_NAME_SIZE], right_path_buff[FILE_NAME_SIZE]; - char * left_path_buff_p = &left_path_buff[0]; - char * right_path_buff_p = &right_path_buff[0]; - - for (i = 0; i <= mp->npaths; i++) { - if (all_paths[mp->pindex[i]].tur) { - left_path_buff_p += sprintf(left_path_buff_p, " %s", all_paths[mp->pindex[i]].dev); - left_path_count++; - } else { - right_path_buff_p += sprintf(right_path_buff_p, " %s", all_paths[mp->pindex[i]].dev); - right_path_count++; - } - } - if (!left_path_count) - sprintf(str, " 1 round-robin %i 0 %s", right_path_count, right_path_buff); - else if (!right_path_count) - sprintf(str, " 1 round-robin %i 0 %s", left_path_count, left_path_buff); - else - sprintf(str, " 2 round-robin %i 0 %s round-robin %i 0 %s", - left_path_count, left_path_buff, - right_path_count, right_path_buff); -} - -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, " 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 */ - 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 %s %i %i", - 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, " %s ", - 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 ((all_paths[PINDEX(index,0)].iopolicy == GROUP_BY_TUR && - conf->iopolicy == -1) || conf->iopolicy == GROUP_BY_TUR) { - group_by_tur(&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 -signal_daemon (void) -{ - FILE *file; - pid_t pid; - char *buf; - - buf = malloc (8); - - file = fopen (PIDFILE, "r"); - - if (!file) { - fprintf(stderr, "cannot signal daemon, pidfile not found\n"); - return; - } - - buf = fgets (buf, 8, file); - fclose (file); - - pid = (pid_t) atol (buf); - free (buf); - - kill(pid, SIGHUP); -} - -static int -filepresent(char * run) { - struct stat buf; - - if(!stat(run, &buf)) - return 1; - return 0; -} - -static void -usage(char * progname) -{ - fprintf(stderr, VERSION_STRING); - fprintf(stderr, "Usage: %s [-v|-q] [-d] [-m max_devs]\n", - progname); - fprintf(stderr, " [-p failover|multibus|group_by_serial]\n" \ - " [device]\n" \ - "\n" \ - "\t-v\t\tverbose, print all paths and multipaths\n" \ - "\t-q\t\tquiet, no output at all\n" \ - "\t-d\t\tdry run, do not create or update devmaps\n" \ - "\t-m max_devs\tscan {max_devs} devices at most\n" \ - "\n" \ - "\t-p policy\tforce maps to specified policy :\n" \ - "\t failover\t\t- 1 path per priority group\n" \ - "\t multibus\t\t- all paths in 1 priority group\n" \ - "\t group_by_serial\t- 1 priority group per serial\n" \ - "\t group_by_tur\t\t- 1 priority group per TUR state\n" \ - "\n" \ - "\t-D maj min\tlimit scope to the device's multipath\n" \ - "\t\t\t(major minor device reference)\n" - "\tdevice\t\tlimit scope to the device's multipath\n" \ - "\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; - int try = 0; - - /* Don't run in parallel */ - while (filepresent(RUN) && try++ < MAXTRY) - usleep(100000); - - if (filepresent(RUN)) { - fprintf(stderr, "waited for to long. exiting\n"); - exit (1); - } - - /* Our turn */ - if (!open(RUN, O_CREAT)) { - fprintf(stderr, "can't create runfile\n"); - exit (1); - } - - /* 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() */ - conf.major = -1; - conf.minor = -1; - - 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("-D", argv[i])) { - conf.major = atoi(argv[++i]); - conf.minor = atoi(argv[++i]); - } 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; - if (!strcmp(argv[i], "group_by_tur")) - conf.iopolicy = GROUP_BY_TUR; - } 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); - } - } - - /* signal multipathd that new devmaps may have come up */ - signal_daemon(); - - /* free allocs */ - free(mp); - free(all_paths); - free(all_scsi_ids); - - /* release runfile */ - unlink(RUN); - - exit(0); -} diff --git a/extras/multipath-tools/multipath/main.h b/extras/multipath-tools/multipath/main.h deleted file mode 100644 index ada7a739..00000000 --- a/extras/multipath-tools/multipath/main.h +++ /dev/null @@ -1,131 +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" -#define PIDFILE "/var/run/multipathd.pid" -#define RUN "/var/run/multipath.run" -#define MAXTRY 50 - -/* Storage controlers cpabilities */ -#define FAILOVER 0 -#define MULTIBUS 1 -#define GROUP_BY_SERIAL 2 -#define GROUP_BY_TUR 4 - -#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; - int tur; -}; - -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; - int major; - int minor; - 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 diff --git a/extras/multipath-tools/multipath/multipath.8 b/extras/multipath-tools/multipath/multipath.8 deleted file mode 100644 index 0856ca8d..00000000 --- a/extras/multipath-tools/multipath/multipath.8 +++ /dev/null @@ -1,66 +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 [\| \-i\ \c -.IR int \|] -.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 \-i " int" -multipath target param: polling interval -.TP -.BI \-m " max_devs" -scan -.I max_devs -devices at most -.TP -.BI \-D " major minor" -update only the devmap the path pointed by -.I major minor -is in -.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 -.BI device -update only the devmap the path pointed by -.I device -is in -.SH "SEE ALSO" -.BR udev (8), -.BR dmsetup (8) -.BR hotplug (8) -.SH AUTHORS -.B multipath -was developed by Christophe Varoqui, and others. diff --git a/extras/multipath-tools/multipath/multipath.hotplug b/extras/multipath-tools/multipath/multipath.hotplug deleted file mode 100644 index 5c411d1e..00000000 --- a/extras/multipath-tools/multipath/multipath.hotplug +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -. /etc/hotplug/hotplug.functions - -# wait for sysfs -sleep 1 - -mesg `/sbin/multipath $DEVPATH` diff --git a/extras/multipath-tools/multipath/sg_err.h b/extras/multipath-tools/multipath/sg_err.h deleted file mode 100644 index ef57b5ce..00000000 --- a/extras/multipath-tools/multipath/sg_err.h +++ /dev/null @@ -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 ) 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 diff --git a/extras/multipath-tools/multipath/sg_include.h b/extras/multipath-tools/multipath/sg_include.h deleted file mode 100644 index 46050682..00000000 --- a/extras/multipath-tools/multipath/sg_include.h +++ /dev/null @@ -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 - #include - #else - #include - #endif -#endif - -/* - Getting the correct include files for the sg interface can be an ordeal. - In a perfect world, one would just write: - #include - #include - 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 -*/ diff --git a/extras/multipath-tools/multipath/unused.c b/extras/multipath-tools/multipath/unused.c deleted file mode 100644 index 08144cf7..00000000 --- a/extras/multipath-tools/multipath/unused.c +++ /dev/null @@ -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; - -} diff --git a/extras/multipath-tools/multipathd/Makefile b/extras/multipath-tools/multipathd/Makefile deleted file mode 100644 index 82c77b83..00000000 --- a/extras/multipath-tools/multipathd/Makefile +++ /dev/null @@ -1,32 +0,0 @@ -EXEC = multipathd - -CC = gcc -GZIP = /bin/gzip -9 -c - -bindir = /usr/bin -mandir = /usr/share/man/man8 -rcdir = /etc/init.d - -CFLAGS = -pipe -g -O2 -Wall -Wunused -Wstrict-prototypes -DDEBUG=1 -LDFLAGS = -lpthread -ldevmapper -lsysfs - -OBJS = main.o devinfo.o checkers.o - -$(EXEC): $(OBJS) - $(CC) $(LDFLAGS) $(OBJS) -o $(EXEC) - strip $(EXEC) - -install: - install -d $(bindir) - install -m 755 $(EXEC) $(bindir) - install -d $(rcdir) - install -m 755 multipathd.init $(rcdir)/$(EXEC) - -uninstall: - rm -f $(bindir)/$(EXEC) - rm -f $(rcdir)/$(EXEC) - -clean: - rm -f core *.o $(EXEC) *.gz - -spotless: clean diff --git a/extras/multipath-tools/multipathd/checkers.c b/extras/multipath-tools/multipathd/checkers.c deleted file mode 100644 index 7ad32b04..00000000 --- a/extras/multipath-tools/multipathd/checkers.c +++ /dev/null @@ -1,62 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include - -#include "sg_include.h" - -#define TUR_CMD_LEN 6 - -/* - * test IO functions : add yours here - * - * returns 0 : path gone valid - * returns 1 : path still failed - */ - -int readsector0 (char *devnode) -{ - int fd, r; - char buf; - - fd = open (devnode, O_RDONLY); - if (read (fd, &buf, 1) != 1) - r = 0; - else - r = 1; - - close (fd); - - return r; -} - -int tur(char *devnode) -{ - unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 }; - struct sg_io_hdr io_hdr; - unsigned char sense_buffer[32]; - int fd; - - fd = open (devnode, O_RDONLY); - - 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; -} diff --git a/extras/multipath-tools/multipathd/checkers.h b/extras/multipath-tools/multipathd/checkers.h deleted file mode 100644 index 057c319d..00000000 --- a/extras/multipath-tools/multipathd/checkers.h +++ /dev/null @@ -1,2 +0,0 @@ -int readsector0 (char *); -int tur (char *); diff --git a/extras/multipath-tools/multipathd/devinfo.c b/extras/multipath-tools/multipathd/devinfo.c deleted file mode 100644 index 46505470..00000000 --- a/extras/multipath-tools/multipathd/devinfo.c +++ /dev/null @@ -1,82 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include "devinfo.h" -#include "sg_include.h" - -#define FILE_NAME_SIZE 255 - -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_lun_strings(char * vendor_id, char * product_id, char * rev, char * devname) -{ - int fd; - char buff[36]; - - /* ioctl style */ - if ((fd = open(devname, O_RDONLY)) < 0) - return 1; - if (0 != do_inq(fd, 0, 0, 0, buff, 36, 1)) - return 1; - memcpy(vendor_id, &buff[8], 8); - memcpy(product_id, &buff[16], 16); - memcpy(rev, &buff[32], 4); - close(fd); - - return 0; -} diff --git a/extras/multipath-tools/multipathd/devinfo.h b/extras/multipath-tools/multipathd/devinfo.h deleted file mode 100644 index 46b28940..00000000 --- a/extras/multipath-tools/multipathd/devinfo.h +++ /dev/null @@ -1,15 +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 - -int get_lun_strings (char *, char *, char *, char *); diff --git a/extras/multipath-tools/multipathd/main.c b/extras/multipath-tools/multipathd/main.c deleted file mode 100644 index 7b5ccfca..00000000 --- a/extras/multipath-tools/multipathd/main.c +++ /dev/null @@ -1,674 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "devinfo.h" -#include "checkers.h" - -#define CHECKINT 5 -#define MAXPATHS 2048 -#define FILENAMESIZE 256 -#define MAPNAMESIZE 64 -#define TARGETTYPESIZE 16 -#define PARAMSSIZE 2048 -#define MAXMAPS 512 - -#define MULTIPATH "/sbin/multipath" -#define PIDFILE "/var/run/multipathd.pid" - -#ifndef DEBUG -#define DEBUG 1 -#endif -#define LOG(x, y, z...) if (DEBUG >= x) syslog(x, y, ##z) - -struct path -{ - int major; - int minor; - char mapname[MAPNAMESIZE]; - int (*checkfn) (char *); -}; - -struct paths -{ - pthread_mutex_t *lock; - struct path *paths_h; -}; - -struct event_thread -{ - pthread_t *thread; - pthread_mutex_t *waiter_lock; - char mapname[MAPNAMESIZE]; -}; - -struct devmap -{ - char mapname[MAPNAMESIZE]; -}; - -/* global var */ -pthread_mutex_t *event_lock; -pthread_cond_t *event; - -int makenode (char *devnode, int major, int minor) -{ - dev_t dev; - - dev = makedev (major, minor); - unlink (devnode); - - return mknod(devnode, S_IFBLK | S_IRUSR | S_IWUSR, dev); -} - -int select_checkfn(struct path *path_p) -{ - char devnode[FILENAMESIZE]; - char vendor[8]; - char product[16]; - char rev[4]; - int i, r; - - /* default checkfn */ - path_p->checkfn = &readsector0; - - sprintf (devnode, "/tmp/.select.%i.%i", path_p->major, path_p->minor); - - r = makenode (devnode, path_p->major, path_p->minor); - - if (r < 0) { - LOG(2, "[select_checkfn] can not make node %s", devnode); - return r; - } - - r = get_lun_strings(vendor, product, rev, devnode); - - if (r) { - LOG(2, "[select_checkfn] can not get strings"); - return r; - } - - r = unlink (devnode); - - if (r < 0) { - LOG(2, "[select_checkfn] can not unlink %s", devnode); - return r; - } - - static struct { - char * vendor; - char * product; - int (*checkfn) (char *); - } wlist[] = { - {"COMPAQ ", "HSV110 (C)COMPAQ", &tur}, - {"COMPAQ ", "MSA1000 ", &tur}, - {"COMPAQ ", "MSA1000 VOLUME ", &tur}, - {"DEC ", "HSG80 ", &tur}, - {"HP ", "HSV100 ", &readsector0}, - {NULL, NULL, NULL}, - }; - - for (i = 0; wlist[i].vendor; i++) { - if (strncmp(vendor, wlist[i].vendor, 8) == 0 && - strncmp(product, wlist[i].product, 16) == 0) { - path_p->checkfn = wlist[i].checkfn; - } - } - - return 0; -} - -int get_devmaps (struct devmap *devmaps) -{ - struct devmap *devmaps_p; - struct dm_task *dmt, *dmt1; - struct dm_names *names = NULL; - unsigned next = 0; - void *nexttgt; - int r = 0; - long long start, length; - char *target_type = NULL; - char *params; - - memset (devmaps, 0, MAXMAPS * sizeof (struct devmap)); - - if (!(dmt = dm_task_create(DM_DEVICE_LIST))) { - r = 1; - goto out; - } - - if (!dm_task_run(dmt)) { - r = 1; - goto out; - } - - if (!(names = dm_task_get_names(dmt))) { - r = 1; - goto out; - } - - if (!names->dev) { - LOG (1, "[get_devmaps] no devmap found"); - goto out; - } - - devmaps_p = devmaps; - - do { - /* keep only multipath maps */ - - names = (void *) names + next; - nexttgt = NULL; - LOG (3, "[get_devmaps] iterate on devmap names : %s", names->name); - - LOG (3, "[get_devmaps] dm_task_create(DM_DEVICE_STATUS)"); - if (!(dmt1 = dm_task_create(DM_DEVICE_STATUS))) - goto out1; - - LOG (3, "[get_devmaps] dm_task_set_name(dmt1, names->name)"); - if (!dm_task_set_name(dmt1, names->name)) - goto out1; - - LOG (3, "[get_devmaps] dm_task_run(dmt1)"); - if (!dm_task_run(dmt1)) - goto out1; - LOG (3, "[get_devmaps] DM_DEVICE_STATUS ioctl done"); - do { - LOG (3, "[get_devmaps] iterate on devmap's targets"); - nexttgt = dm_get_next_target(dmt1, nexttgt, - &start, - &length, - &target_type, - ¶ms); - - - LOG (3, "[get_devmaps] test target_type existence"); - if (!target_type) - goto out1; - - LOG (3, "[get_devmaps] test target_type is multipath"); - if (!strncmp (target_type, "multipath", 9)) { - strcpy (devmaps_p->mapname, names->name); - devmaps_p++; - - /* test vector overflow */ - if (devmaps_p - devmaps >= MAXMAPS * sizeof (struct devmap)) { - LOG (1, "[get_devmaps] devmaps overflow"); - dm_task_destroy(dmt1); - r = 1; - goto out; - } - } - - } while (nexttgt); - -out1: - dm_task_destroy(dmt1); - next = names->next; - - } while (next); - -out: - dm_task_destroy(dmt); - - LOG (3, "[get_devmaps] done"); - return r; -} - -int checkpath (struct path *path_p) -{ - char devnode[FILENAMESIZE]; - int r; - - LOG (2, "[checkpath] checking path %i:%i", path_p->major, path_p->minor); - sprintf (devnode, "/tmp/.checker.%i.%i", path_p->major, path_p->minor); - - if (path_p->checkfn == NULL) { - LOG (1, "[checkpath] test function not set for path %i:%i", - path_p->major, path_p->minor); - return 1; - } - - r = makenode (devnode, path_p->major, path_p->minor); - - if (r < 0) { - LOG (2, "[checkpath] can not make node for %s", devnode); - return r; - } - - r = path_p->checkfn(devnode); - unlink (devnode); - - return r; -} - -int updatepaths (struct devmap *devmaps, struct paths *failedpaths) -{ - struct path *path_p; - struct devmap *devmaps_p; - void *next; - struct dm_task *dmt; - long long start, length; - char *target_type = NULL; - char *params, *p1, *p2; - char word[6]; - int i; - - path_p = failedpaths->paths_h; - - pthread_mutex_lock (failedpaths->lock); - memset (failedpaths->paths_h, 0, MAXPATHS * sizeof (struct path)); - - /* first pass */ - /* ask DM the failed path list */ - - devmaps_p = devmaps; - - while (*devmaps_p->mapname != 0x0) { - next = NULL; - - if (!(dmt = dm_task_create(DM_DEVICE_STATUS))) - break; - - if (!dm_task_set_name(dmt, devmaps_p->mapname)) - goto out; - - if (!dm_task_run(dmt)) - goto out; - - do { - next = dm_get_next_target(dmt, next, &start, &length, - &target_type, ¶ms); - - /* begin ugly parser */ - p1 = params; - p2 = params; - while (*p1) { - /* p2 lags at the begining of the word p1 parses */ - while (*p1 != ' ') { - /* if the current word is a path */ - if (*p1 == ':') { - /* p1 jumps to path state */ - while (*p1 != 'A' && *p1 != 'F') - p1++; - - /* store path info */ - - path_p->checkfn = NULL; - - i = 0; - memset (&word, 'O', 6 * sizeof (char)); - while (*p2 != ':') { - word[i++] = *p2; - p2++; - } - path_p->major = atoi (word); - - p2++; - i = 0; - memset (&word, 'O', 6 * sizeof (char)); - while (*p2 != ' ') { - word[i++] = *p2; - p2++; - } - path_p->minor = atoi (word); - - strcpy (path_p->mapname, devmaps_p->mapname); - - /* - * discard active paths - * don't trust the A status flag : double check - */ - if (*p1 == 'A' && - !select_checkfn (path_p) && - checkpath (path_p)) { - LOG(2, "[updatepaths] discard %i:%i as valid path", - path_p->major, path_p->minor); - p1++; - memset (path_p, 0, sizeof(struct path)); - continue; - } - - path_p++; - - /* test vector overflow */ - if (path_p - failedpaths->paths_h >= MAXPATHS * sizeof (struct path)) { - LOG (1, "[updatepaths] path_h overflow"); - pthread_mutex_unlock (failedpaths->lock); - return 1; - } - } - p1++; - } - p2 = p1; - p1++; - } - } while (next); - -out: - dm_task_destroy(dmt); - devmaps_p++; - - } - - pthread_mutex_unlock (failedpaths->lock); - return 0; -} - -int geteventnr (char *name) -{ - struct dm_task *dmt; - struct dm_info info; - - if (!(dmt = dm_task_create(DM_DEVICE_INFO))) - return 0; - - if (!dm_task_set_name(dmt, name)) - goto out; - - if (!dm_task_run(dmt)) - goto out; - - if (!dm_task_get_info(dmt, &info)) - return 0; - - if (!info.exists) { - LOG(1, "Device %s does not exist", name); - return 0; - } - -out: - dm_task_destroy(dmt); - - return info.event_nr; -} - -void *waitevent (void * et) -{ - int event_nr; - struct event_thread *waiter; - - waiter = (struct event_thread *)et; - pthread_mutex_lock (waiter->waiter_lock); - - event_nr = geteventnr (waiter->mapname); - - struct dm_task *dmt; - - if (!(dmt = dm_task_create(DM_DEVICE_WAITEVENT))) - return 0; - - if (!dm_task_set_name(dmt, waiter->mapname)) - goto out; - - if (event_nr && !dm_task_set_event_nr(dmt, event_nr)) - goto out; - - dm_task_run(dmt); - -out: - dm_task_destroy(dmt); - - /* tell waiterloop we have an event */ - pthread_mutex_lock (event_lock); - pthread_cond_signal(event); - pthread_mutex_unlock (event_lock); - - /* release waiter_lock so that waiterloop knows we are gone */ - pthread_mutex_unlock (waiter->waiter_lock); - pthread_exit(waiter->thread); - - return (NULL); -} - -void *waiterloop (void *ap) -{ - struct paths *failedpaths; - struct devmap *devmaps, *devmaps_p; - struct event_thread *waiters, *waiters_p; - int r; - - /* inits */ - failedpaths = (struct paths *)ap; - devmaps = malloc (MAXMAPS * sizeof (struct devmap)); - waiters = malloc (MAXMAPS * sizeof (struct event_thread)); - memset (waiters, 0, MAXMAPS * sizeof (struct event_thread)); - - while (1) { - - /* update devmap list */ - LOG (1, "[event thread] refresh devmaps list"); - get_devmaps (devmaps); - - /* update failed paths list */ - LOG (1, "[event thread] refresh failpaths list"); - updatepaths (devmaps, failedpaths); - - /* start waiters on all devmaps */ - LOG (1, "[event thread] start up event loops"); - waiters_p = waiters; - devmaps_p = devmaps; - - while (*devmaps_p->mapname != 0x0) { - - /* find out if devmap already has a running waiter thread */ - while (*waiters_p->mapname != 0x0) { - if (!strcmp (waiters_p->mapname, devmaps_p->mapname)) - break; - waiters_p++; - } - - /* no event_thread struct : init it */ - if (*waiters_p->mapname == 0x0) { - strcpy (waiters_p->mapname, devmaps_p->mapname); - waiters_p->thread = malloc (sizeof (pthread_t)); - waiters_p->waiter_lock = (pthread_mutex_t *) malloc (sizeof (pthread_mutex_t)); - pthread_mutex_init (waiters_p->waiter_lock, NULL); - } - - /* event_thread struct found */ - if (*waiters_p->mapname != 0x0) { - r = pthread_mutex_trylock (waiters_p->waiter_lock); - /* thread already running : out */ - - if (r) - goto out; - - pthread_mutex_unlock (waiters_p->waiter_lock); - } - - LOG (1, "[event thread] create event thread for %s", waiters_p->mapname); - pthread_create (waiters_p->thread, NULL, waitevent, waiters_p); -out: - waiters_p = waiters; - devmaps_p++; - } - - /* wait event condition */ - pthread_mutex_lock (event_lock); - pthread_cond_wait(event, event_lock); - pthread_mutex_unlock (event_lock); - - LOG (1, "[event thread] event caught"); - } - - return (NULL); -} - -void *checkerloop (void *ap) -{ - struct paths *failedpaths; - struct path *path_p; - char *cmdargs[4] = {MULTIPATH, "-D", NULL, NULL}; - char major[5]; - char minor[5]; - int status; - - failedpaths = (struct paths *)ap; - - LOG (1, "[checker thread] path checkers start up"); - - while (1) { - path_p = failedpaths->paths_h; - pthread_mutex_lock (failedpaths->lock); - LOG (2, "[checker thread] checking paths"); - while (path_p->major != 0) { - - if (checkpath (path_p)) { - LOG (1, "[checker thread] reconfigure %s\n", path_p->mapname); - snprintf (major, 5, "%i", path_p->major); - snprintf (minor, 5, "%i", path_p->minor); - cmdargs[2] = major; - cmdargs[3] = minor; - if (fork () == 0) - execve (cmdargs[0], cmdargs, NULL); - - wait (&status); - /* MULTIPATH will ask for failedpaths refresh (SIGHUP) */ - } - - path_p++; - - /* test vector overflow */ - if (path_p - failedpaths->paths_h >= MAXPATHS * sizeof (struct path)) { - LOG (1, "[checker thread] path_h overflow"); - pthread_mutex_unlock (failedpaths->lock); - return (NULL); - } - } - pthread_mutex_unlock (failedpaths->lock); - sleep(CHECKINT); - } - - return (NULL); -} - -struct paths *initpaths (void) -{ - struct paths *failedpaths; - - failedpaths = malloc (sizeof (struct paths)); - failedpaths->paths_h = malloc (MAXPATHS * sizeof (struct path)); - failedpaths->lock = (pthread_mutex_t *) malloc (sizeof (pthread_mutex_t)); - pthread_mutex_init (failedpaths->lock, NULL); - event = (pthread_cond_t *) malloc (sizeof (pthread_cond_t)); - pthread_cond_init (event, NULL); - event_lock = (pthread_mutex_t *) malloc (sizeof (pthread_mutex_t)); - pthread_mutex_init (event_lock, NULL); - - return (failedpaths); -} - -void pidfile (pid_t pid) -{ - FILE *file; - struct stat *buf; - - buf = malloc (sizeof (struct stat)); - - if (!stat (PIDFILE, buf)) { - LOG(1, "[master thread] already running : out"); - free (buf); - exit (1); - } - - umask (022); - pid = setsid (); - - if (pid < -1) { - LOG(1, "[master thread] setsid() error"); - exit (1); - } - - file = fopen (PIDFILE, "w"); - fprintf (file, "%d\n", pid); - fclose (file); - free (buf); -} - -void * -signal_set(int signo, void (*func) (int)) -{ - int r; - struct sigaction sig; - struct sigaction osig; - - sig.sa_handler = func; - sigemptyset(&sig.sa_mask); - sig.sa_flags = 0; - - r = sigaction(signo, &sig, &osig); - - if (r < 0) - return (SIG_ERR); - else - return (osig.sa_handler); -} - -void sighup (int sig) -{ - LOG (1, "[master thread] SIGHUP caught : refresh devmap list"); - - /* ask for failedpaths refresh */ - pthread_mutex_lock (event_lock); - pthread_cond_signal(event); - pthread_mutex_unlock (event_lock); -} - -void sigend (int sig) -{ - LOG (1, "[master thread] unlink pidfile"); - unlink (PIDFILE); - LOG (1, "[master thread] --------shut down-------"); - exit (0); -} - -void signal_init(void) -{ - signal_set(SIGHUP, sighup); - signal_set(SIGINT, sigend); - signal_set(SIGTERM, sigend); - signal_set(SIGKILL, sigend); -} - -int main (int argc, char *argv[]) -{ - pthread_t wait, check; - struct paths *failedpaths; - pid_t pid; - - pid = fork (); - - /* can't fork */ - if (pid < 0) - exit (1); - - /* let the parent die happy */ - if (pid > 0) - exit (0); - - /* child's play */ - openlog (argv[0], 0, LOG_DAEMON); - LOG (1, "[master thread] --------start up--------"); - - pidfile (pid); - signal_init (); - - failedpaths = initpaths (); - - pthread_create (&wait, NULL, waiterloop, failedpaths); - pthread_create (&check, NULL, checkerloop, failedpaths); - pthread_join (wait, NULL); - pthread_join (check, NULL); - - return 0; -} diff --git a/extras/multipath-tools/multipathd/multipathd.init b/extras/multipath-tools/multipathd/multipathd.init deleted file mode 100644 index 860b2b11..00000000 --- a/extras/multipath-tools/multipathd/multipathd.init +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh - -PATH=/bin:/usr/bin:/sbin:/usr/sbin -DAEMON=/usr/bin/multipathd -PIDFILE=/var/run/multipathd.pid - -test -x $DAEMON || exit 0 - -case "$1" in - start) - echo -n "Starting multipath daemon: multipathd" - if start-stop-daemon --quiet --stop --signal 0 --pidfile $PIDFILE --name multipathd - then - echo " already running." - exit - fi - /sbin/start-stop-daemon --start --quiet --exec $DAEMON - echo "." - ;; - stop) - echo -n "Stopping multipath daemon: multipathd" - if start-stop-daemon --quiet --stop --signal 0 --pidfile $PIDFILE --name multipathd - then - PID=`cat $PIDFILE` - start-stop-daemon --quiet --stop --exec $DAEMON --pidfile $PIDFILE --name multipathd - # Now we wait for it to die - while kill -0 $PID 2>/dev/null; do sleep 1; done - echo "." - else - echo " not running."; - fi - ;; - force-reload|restart) - $0 stop - $0 start - ;; - *) - echo "Usage: /etc/init.d/multipathd {start|stop|restart|force-reload}" - exit 1 -esac - -exit 0 diff --git a/extras/multipath-tools/multipathd/sg_include.h b/extras/multipath-tools/multipathd/sg_include.h deleted file mode 100644 index 46050682..00000000 --- a/extras/multipath-tools/multipathd/sg_include.h +++ /dev/null @@ -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 - #include - #else - #include - #endif -#endif - -/* - Getting the correct include files for the sg interface can be an ordeal. - In a perfect world, one would just write: - #include - #include - 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 -*/