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2010-05-14NFS: Reduce the stack footprint of nfs_proc_createTrond Myklebust1-52/+66
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_rmdirTrond Myklebust1-5/+10
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce stack footprint of nfs_proc_remove()Trond Myklebust6-12/+24
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce stack footprint of nfs3_proc_readlink()Trond Myklebust1-5/+10
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_link()Trond Myklebust2-17/+21
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce stack footprint of nfs_readdir()Trond Myklebust2-12/+18
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce stack footprint of nfs3_proc_rename() and nfs4_proc_rename()Trond Myklebust2-17/+22
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce stack footprint of nfs_revalidate_inode()Trond Myklebust1-3/+9
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFSv4: Reduce stack footprint of nfs4_proc_access() and nfs3_proc_access()Trond Myklebust2-11/+17
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFSv4: Reduce the stack footprint of nfs4_remote_referral_get_sbTrond Myklebust1-4/+12
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFSv4: Reduce stack footprint of nfs4_get_root()Trond Myklebust1-30/+46
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_follow_remote_path()Trond Myklebust1-6/+12
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_lookupTrond Myklebust2-14/+41
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFSv4: Reduce the stack footprint of try_location()Trond Myklebust1-3/+7
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_create_serverTrond Myklebust1-12/+39
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Reduce the stack footprint of nfs_follow_mountpoint()Trond Myklebust1-6/+14
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFSv4: Eliminate nfs4_path_walk()Trond Myklebust3-98/+25
All we really want is the ability to retrieve the root file handle. We no longer need the ability to walk down the path, since that is now done in nfs_follow_remote_path(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14NFS: Add helper functions for allocating filehandles and fattr structsTrond Myklebust2-0/+34
NFS Filehandles and struct fattr are really too large to be allocated on the stack. This patch adds in a couple of helper functions to allocate them dynamically instead. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Advertise rc4-hmac enctype support in the rpcsec_gss/krb5 upcallTrond Myklebust1-1/+1
Update the upcall info indicating which Kerberos enctypes the kernel supports Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Add support for rc4-hmac encryptionKevin Coffman7-13/+492
Add necessary changes to add kernel support for the rc4-hmac Kerberos encryption type used by Microsoft and described in rfc4757. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Use confounder length in wrap codeKevin Coffman4-8/+17
All encryption types use a confounder at the beginning of the wrap token. In all encryption types except arcfour-hmac, the confounder is the same as the blocksize. arcfour-hmac has a blocksize of one, but uses an eight byte confounder. Add an entry to the crypto framework definitions for the confounder length and change the wrap/unwrap code to use the confounder length rather than assuming it is always the blocksize. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gssd_krb5: More arcfour-hmac supportKevin Coffman5-11/+14
For the arcfour-hmac support, the make_seq_num and get_seq_num functions need access to the kerberos context structure. This will be used in a later patch. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Save the raw session key in the contextKevin Coffman2-14/+14
This is needed for deriving arcfour-hmac keys "on the fly" using the sequence number or checksu Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gssd_krb5: arcfour-hmac supportKevin Coffman5-16/+32
For arcfour-hmac support, the make_checksum function needs a usage field to correctly calculate the checksum differently for MIC and WRAP tokens. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Advertise AES enctype support in the rpcsec_gss/krb5 upcallTrond Myklebust1-1/+1
Update upcall info indicating which Kerberos enctypes the kernel supports Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: add remaining pieces to enable AES encryption supportKevin Coffman5-12/+378
Add the remaining pieces to enable support for Kerberos AES encryption types. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: add support for new token formats in rfc4121Kevin Coffman5-0/+406
This is a step toward support for AES encryption types which are required to use the new token formats defined in rfc4121. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> [SteveD: Fixed a typo in gss_verify_mic_v2()] Signed-off-by: Steve Dickson <steved@redhat.com> [Trond: Got rid of the TEST_ROTATE/TEST_EXTRA_COUNT crap] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14xdr: Add an export for the helper function write_bytes_to_xdr_buf()Kevin Coffman1-0/+1
Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Advertise triple-des enctype support in the rpcsec_gss/krb5 upcallTrond Myklebust1-1/+1
Update the upcall info indicating which Kerberos enctypes the kernel supports. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: add support for triple-des encryptionKevin Coffman7-0/+88
Add the final pieces to support the triple-des encryption type. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Add upcall info indicating supported kerberos enctypesTrond Myklebust3-1/+10
The text based upcall now indicates which Kerberos encryption types are supported by the kernel rpcsecgss code. This is used by gssd to determine which encryption types it should attempt to negotiate when creating a context with a server. The server principal's database and keytab encryption types are what limits what it should negotiate. Therefore, its keytab should be created with only the enctypes listed by this file. Currently we support des-cbc-crc, des-cbc-md4 and des-cbc-md5 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: handle new context format from gssdKevin Coffman3-4/+258
For encryption types other than DES, gssd sends down context information in a new format. This new format includes the information needed to support the new Kerberos GSS-API tokens defined in rfc4121. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: import functionality to derive keys into the kernelKevin Coffman4-1/+285
Import the code to derive Kerberos keys from a base key into the kernel. This will allow us to change the format of the context information sent down from gssd to include only a single key. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: add ability to have a keyed checksum (hmac)Kevin Coffman6-34/+88
Encryption types besides DES may use a keyed checksum (hmac). Modify the make_checksum() function to allow for a key and take care of enctype-specific processing such as truncating the resulting hash. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: introduce encryption type frameworkKevin Coffman6-70/+206
Add enctype framework and change functions to use the generic values from it rather than the values hard-coded for des. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: prepare for new context formatKevin Coffman1-24/+39
Prepare for new context format by splitting out the old "v1" context processing function Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: split up functions in preparation of adding new enctypesKevin Coffman5-12/+69
Add encryption type to the krb5 context structure and use it to switch to the correct functions depending on the encryption type. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Don't expect blocksize to always be 8 when calculating paddingJ. Bruce Fields1-4/+1
Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Added and improved code commentsKevin Coffman3-3/+38
Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14gss_krb5: Introduce encryption type frameworkKevin Coffman4-5/+66
Make the client and server code consistent regarding the extra buffer space made available for the auth code when wrapping data. Add some comments/documentation about the available buffer space in the xdr_buf head and tail when gss_wrap is called. Add a compile-time check to make sure we are not exceeding the available buffer space. Add a central function to shift head data. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-05-14Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notifyLinus Torvalds2-8/+10
* 'for-linus' of git://git.infradead.org/users/eparis/notify: inotify: don't leak user struct on inotify release inotify: race use after free/double free in inotify inode marks inotify: clean up the inotify_add_watch out path Inotify: undefined reference to `anon_inode_getfd' Manual merge to remove duplicate "select ANON_INODES" from Kconfig file
2010-05-14Merge branch 'davinci-fixes-for-linus-2' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci * 'davinci-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: DA830: fix USB 2.0 clock entry
2010-05-14DA830: fix USB 2.0 clock entrySergei Shtylyov1-1/+1
DA8xx OHCI driver fails to load due to failing clk_get() call for the USB 2.0 clock. Arrange matching USB 2.0 clock by the clock name instead of the device. (Adding another CLK() entry for "ohci.0" device won't do -- in the future I'll also have to enable USB 2.0 clock to configure CPPI 4.1 module, in which case I won't have any device at all.) Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-05-14inotify: don't leak user struct on inotify releasePavel Emelyanov1-0/+2
inotify_new_group() receives a get_uid-ed user_struct and saves the reference on group->inotify_data.user. The problem is that free_uid() is never called on it. Issue seem to be introduced by 63c882a0 (inotify: reimplement inotify using fsnotify) after 2.6.30. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Eric Paris <eparis@parisplace.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2010-05-14inotify: race use after free/double free in inotify inode marksEric Paris1-3/+6
There is a race in the inotify add/rm watch code. A task can find and remove a mark which doesn't have all of it's references. This can result in a use after free/double free situation. Task A Task B ------------ ----------- inotify_new_watch() allocate a mark (refcnt == 1) add it to the idr inotify_rm_watch() inotify_remove_from_idr() fsnotify_put_mark() refcnt hits 0, free take reference because we are on idr [at this point it is a use after free] [time goes on] refcnt may hit 0 again, double free The fix is to take the reference BEFORE the object can be found in the idr. Signed-off-by: Eric Paris <eparis@redhat.com> Cc: <stable@kernel.org>
2010-05-14inotify: clean up the inotify_add_watch out pathEric Paris1-5/+2
inotify_add_watch explictly frees the unused inode mark, but it can just use the generic code. Just do that. Signed-off-by: Eric Paris <eparis@redhat.com>
2010-05-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds1-1/+6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: vhost: fix barrier pairing
2010-05-14Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: mmap_min_addr check CAP_SYS_RAWIO only for write
2010-05-14Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds8-20/+89
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix module loading on system with WB cache microblaze: export assembly functions used by modules microblaze: Remove powerpc code from Microblaze port microblaze: Remove compilation warnings in cache macro microblaze: export assembly functions used by modules microblaze: fix get_user/put_user side-effects microblaze: re-enable interrupts before calling schedule
2010-05-14Merge branch 'net-2.6' of ↵David S. Miller1-1/+6
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
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