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This is the first issue of what will hopefully be a monthly summary of the activity that's happening in the OpenAFS community.
As always, volunteers, patches, bug reports, or any other type of help is greatly appreciated.
Feedback on this newsletter is welcome. The goal is to summarize the various development efforts and news of OpenAFS for the community. Please let Jason know what you would like to see out of this newsletter.
The Sixth Annual International AFS & Kerberos Best Practices Workshop will be held at Stanford University on June 1-5, 2009.
Ref: http://workshop.openafs.org/afsbpw09/index.html
Project Contacts:
Simon Wilkinson <sxw@inf.ed.ac.uk>
Dragos Tatulea <dragos.tatulea@gmail.com>
Support for disconnection operation on Unix has been integrated into the 1.5.x branch. There are no currently known data loss bugs, and further testing would be greatly appreciated. Currently, files written whilst disconnected do not persist across restarts, and there is no user interface to specify which files should be pinned in the cache to ensure they're available whilst disconnected. Simon Wilkinson and Dragos Tatulea (respectively) are working to resolve these.
Security Officer:
Simon Wilkinson <sxw@inf.ed.ac.uk>
OpenAFS 1.4.9, 1.4.10 and 1.5.59 were a security release to resolve two independent issues in the OpenAFS cache manager for Unix, one of which is a potential remote root exploit. All Unix platforms, excluding Mac OS X 10.4 and 10.5 are affected, and upgrading is strongly recommended.
Project Contact:
Simon Wilkinson <sxw@inf.ed.ac.uk>
OpenAFS 1.4.10 does not build on Fedora 11, and crashes in some situations when running on a 2.6.29 kernel. Fixes will be available shortly.
Project Contact:
Jason Edgecombe <jason@rampaginggeek.com>
Derrick Brashear, Jason Edgecombe, Jeff Altman, and Simon Wilkinson discussed the issue of keeping the community better informed by the web and a monthly email newsletter. Jason volunteered to write the newsletter. This document is the result.
Ref: http://jabber.openafs.org/openafs@conference.openafs.org/2009-05-04.txt
OpenAFS received 4 slots for the 2009 Google Summer of Code.
Go to http://socghop.appspot.com/org/home/google/gsoc2009/openafs for more information about the GSoC projects.
The student projects are:
Student Developer: Jake Thebault-Spieker <summatusmentis@gmail.com>
Mentor: Derrick Brashear <shadow@gmail.com>
This is Jake's second year with GSoC for OpenAFS.
Abstract:
The OpenAFS cache manager keeps two lists of which servers host the files required. Currently, these lists are ordered based on antiquated network architecture assumptions that no longer apply to current network architectures. This project seeks to change the way these lists are ordered by taking into account network conditions that can be estimated based on the Rx peer statistics gathering functionality built into OpenAFS.
Ref: https://lists.openafs.org/pipermail/openafs-devel/2009-April/016590.html
Student Developer: Brant Gurganus <brant@gurganus.name>
Mentor: Jeffrey Altman <jaltman@secure-endpoints.com>
Abstract:
I propose creating a Microsoft Management Console snap-in for Windows. This will better integrate OpenAFS with existing Windows management technology and fits in an overall strategy of improved Windows integration.
Ref: https://lists.openafs.org/pipermail/openafs-devel/2009-April/016591.html
Student Developer: Wang Lei <wang840925@gmail.com>
Mentor: David Howells
Abstract:
My project is to implement some OpenAFS features into the Linux kafs kernel module. The first feature is DNS AFSDB Support which may be implemented by sharing the mechanism used by CIFS as my mentor's design at present. The second is implement more functions of the pioctl system-call on the work of the student of GSoC last year. And the other two are to implement some OpenAFS fs commonds that were not implemented in kafs and Keyring compatibility which can work well with both OpenAFS client and kafs. I have began to read the documatations of pioctl/ioctl of the OpenAFS, and I will start my work with the implement of this system call. There are a lot of pioctls to implement and I think that can help me to understand OpenAFS well.
Ref: https://lists.openafs.org/pipermail/openafs-devel/2009-April/016595.html
Student Developer: Reeni Kaushik <kaushik1@illinois.edu>
Mentor: Dave Botsch
Abstract:
My interest lies in the area of File Systems and I am especially interested in working on the project ``AFS as a Data Driven File System''.
Ref: https://lists.openafs.org/pipermail/openafs-devel/2009-April/016596.html
Project Contacts:
Matt Benjamin <matt@linuxbox.com>
Marcus Watts <mwd@umich.edu>
We are finalizing work to bring the rxk5 change set to parity with openafs-devel-1_5_x, at which time we will pull the rxk5-devel and probably rxk5 branch tags forward. (This may take place in the next day or so, in fact, thanks to a bunch of merge work by Marcus over the weekend.) Our intention is to have rxk5 ready to merge with 1.5 in the near future. In addition, we are working on a draft description of 'rxk5ng', a superset of rxk5 addressing authorization of currently unsecured call channels (anonymous file accesses, callbacks), cache poisoning, and departmental servers. --Matt
(Ed: This was received on May 10)
Project Contacts:
Matt Benjamin <matt@linuxbox.com>
The OpenBSD port has been updated to support OpenBSD 4.4 and 4.5. I have added a userland port (no client) to DragonflyBSD, supporting releases 2.2 and 2.3. Updates for client support of recent versions of FreeBSD 8.0 current and NetBSD 4.x and 5.x are in progress. --Matt
Project Contacts:
Matt Benjamin <matt@linuxbox.com>
I am preparing a public release of the full extended callback information draft implementation, including a reduced version of Tom Keiser's libosi work. (The xcb mechanism makes the callback interface extensible, and provides atop this new notifications including range invalidation on files and metadata change notifications.) This will be ready for review some time before the afsbpw. --Matt
Project Contacts:
Hartmut Reuter <reuter@rzg.mpg.de>
Felix Frank <Felix.Frank@Desy.de>
Christof Hanke <hanke@rzg.mpg.de>
Felix Frank is working on integrating the Rx OSD changes back into the mainline OpenAFS code.
Ref: https://lists.openafs.org/pipermail/openafs-devel/2009-May/016625.html
Project Contacts:
Russ Allbery <rra@stanford.edu>
Jason Edgecombe <jason@rampaginggeek.com>
Marcus Watts updated the pts_interactive.pod, pts_sleep.pod, pts_source.pod, and NoAuth.pod man pages in the rxk5 branch on May 3. Jason clarified fake address support in netinfo.pod on April 27. Jason has started working on the Admin Quickstart guide. The man pages still need work, but Jason is tired of seeing new users set up OpenAFS with the deprecated kaserver. Appendix A of the Unix Quickstart Guide has been rewritten to show the use of configure and make to compile OpenAFS from source.
Month Lines Added Lines Removed Net Lines Changed ====HEAD==== 2009/01 + 1289 - 1128 161 2009/02 + 2274 - 2152 122 2009/03 + 4276 - 4466 -190 2009/04 + 394 - 361 33
====openafs-devel-1_5_x==== 2009/01 + 5794 - 7476 -1682 2009/02 + 133623 - 128267 5356 2009/03 + 8252 - 7838 414 2009/04 + 1145 - 777 368
====openafs-stable-1_4_x==== 2009/01 + 389 - 251 138 2009/02 + 869 - 612 257 2009/03 + 1503 - 710 793 2009/04 + 544 - 436 108
====openafs-windows-kdfs-ifs-branch==== 2009/01 + 247 - 177 70 2009/02 + 1959 - 1135 824 2009/03 + 316 - 74 242
====rxk5-devel-1_5_x==== none in 2009 until May 2009