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| * | NFS Remove unused authflavour parameter from init_clientAndy Adamson2013-08-07
| | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Never use user credentials for lease renewalChuck Lever2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Never try to use a non-UID 0 user credential for lease management, as that credential can change out from under us. The server will block NFSv4 lease recovery with NFS4ERR_CLID_INUSE. Since the mechanism to acquire a credential for lease management is now the same for all minor versions, replace the minor version- specific callout with a single function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Use root's credential for lease management when keytab is missingChuck Lever2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 05f4c350 "NFS: Discover NFSv4 server trunking when mounting" Fri Sep 14 17:24:32 2012 introduced Uniform Client String support, which forces our NFS client to establish a client ID immediately during a mount operation rather than waiting until a user wants to open a file. Normally machine credentials (eg. from a keytab) are used to perform a mount operation that is protected by Kerberos. Before 05fc350, SETCLIENTID used a machine credential, or fell back to a regular user's credential if no keytab is available. On clients that don't have a keytab, performing SETCLIENTID early means there's no user credential to fall back on, since no regular user has kinit'd yet. 05f4c350 seems to have broken the ability to mount with sec=krb5 on clients that don't have a keytab in kernels 3.7 - 3.10. To address this regression, commit 4edaa308 (NFS: Use "krb5i" to establish NFSv4 state whenever possible), Sat Mar 16 15:56:20 2013, was merged in 3.10. This commit forces the NFS client to fall back to AUTH_SYS for lease management operations if no keytab is available. Neil Brown noticed that, since root is required to kinit to do a sec=krb5 mount when a client doesn't have a keytab, we can try to use root's Kerberos credential before AUTH_SYS. Now, when determining a principal and flavor to use for lease management, the NFS client tries in this order: 1. Flavor: AUTH_GSS, krb5i Principal: service principal (via keytab) 2. Flavor: AUTH_GSS, krb5i Principal: user principal established for UID 0 (via kinit) 3. Flavor: AUTH_SYS Principal: UID 0 / GID 0 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Refuse mount attempts with proto=udpTrond Myklebust2013-08-07
| | | | | | | | | | | | | | | | | | RFC3530 disallows the use of udp as a transport protocol for NFSv4. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: verify open flags before allowing an atomic openJeff Layton2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, you can open a NFSv4 file with O_APPEND|O_DIRECT, but cannot fcntl(F_SETFL,...) with those flags. This flag combination is explicitly forbidden on NFSv3 opens, and it seems like it should also be on NFSv4. Reported-by: Chao Ye <cye@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Fix nfs4_init_uniform_client_string for net namespacesTrond Myklebust2013-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 6f2ea7f2a (NFS: Add nfs4_unique_id boot parameter) introduces a boot parameter that allows client administrators to set a string identifier for use by the EXCHANGE_ID and SETCLIENTID arguments in order to make them more globally unique. Unfortunately, that uniquifier is no longer globally unique in the presence of net namespaces, since each container expects to be able to set up their own lease when mounting a new NFSv4/4.1 partition. The fix is to add back in the container-specific hostname in addition to the unique id. Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 Use the mount point rpc_clnt for layoutreturnAndy Adamson2013-07-23
| | | | | | | | | | | | | | | | | | | | | Should not use the clientid maintenance rpc_clnt. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix return type of nfs4_end_drain_session() stubChuck Lever2013-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: when NFSv4.1 support is compiled out, nfs4_end_drain_session() becomes a stub. Make the synopsis of the stub match the synopsis of the real version of the function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: fix open(O_RDONLY|O_TRUNC) in NFS4.0Nadav Shemer2013-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | nfs4_proc_setattr removes ATTR_OPEN from sattr->ia_valid, but later nfs4_do_setattr checks for it Signed-off-by: Nadav Shemer <nadav@tonian.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: encode_attrs should not backfill the bitmap and attribute lengthTrond Myklebust2013-07-23
| | | | | | | | | | | | | | | | | | | | | | | | The attribute length is already calculated in advance. There is no reason why we cannot calculate the bitmap in advance too so that we don't have to play pointer games. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | nfs: use check_submounts_and_drop()Miklos Szeredi2013-09-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do have_submounts(), shrink_dcache_parent() and d_drop() atomically. check_submounts_and_drop() can deal with negative dentries and non-directories as well. Non-directories can also be mounted on. And just like directories we don't want these to disappear with invalidation. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | NFSv4: Fix up nfs4_proc_lookup_mountpointTrond Myklebust2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we do not check the return value of client = rpc_clone_client(), nor do we shut down the resulting cloned rpc_clnt in the case where a NFS4ERR_WRONGSEC has caused nfs4_proc_lookup_common() to replace the original value of 'client' (causing a memory leak). Fix both issues and simplify the code by moving the call to rpc_clone_client() until after nfs4_proc_lookup_common() has done its business. Reported-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | NFS: Remove unnecessary call to nfs_setsecurity in nfs_fhget()Trond Myklebust2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | We only need to call it on the creation of the inode. Reported-by: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Steve Dickson <SteveD@redhat.com> Cc: Dave Quigley <dpquigl@davequigley.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | NFSv4: Fix the sync mount option for nfs4 mountsScott Mayhew2013-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sync mount option stopped working for NFSv4 mounts after commit c02d7adf8c5429727a98bad1d039bccad4c61c50 (NFSv4: Replace nfs4_path_walk() with FS path lookup in a private namespace). If MS_SYNCHRONOUS is set in the super_block that we're cloning from, then it should be set in the new super_block as well. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | NFS: Fix writeback performance issue on cache invalidationTrond Myklebust2013-08-07
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a cache invalidation is triggered, and we happen to have a lot of writebacks cached at the time, then the call to invalidate_inode_pages2() will end up calling ->launder_page() on each and every dirty page in order to sync its contents to disk, thus defeating write coalescing. The following patch ensures that we try to sync the inode to disk before calling invalidate_inode_pages2() so that we do the writeback as efficiently as possible. Reported-by: William Dauchy <william@gandi.net> Reported-by: Pascal Bouchareine <pascal@gandi.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Tested-by: William Dauchy <william@gandi.net> Reviewed-by: Jeff Layton <jlayton@redhat.com>
* | NFSv4: Fix brainfart in attribute length calculationTrond Myklebust2013-07-23
| | | | | | | | | | | | | | | | | | The calculation of the attribute length was 4 bytes off. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Tested-by: Andre Heider <a.heider@gmail.com> Reported-and-tested-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | NFSv4: Fix a regression against the FreeBSD serverTrond Myklebust2013-07-17
|/ | | | | | | | | | | Technically, the Linux client is allowed by the NFSv4 spec to send 3 word bitmaps as part of an OPEN request. However, this causes the current FreeBSD server to return NFS4ERR_ATTRNOTSUPP errors. Fix the regression by making the Linux client use a 2 word bitmap unless doing NFSv4.2 with labeled NFS. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Allow nfs_updatepage to extend a write under additional circumstancesScott Mayhew2013-07-09
| | | | | | | | | | | | Currently nfs_updatepage allows a write to be extended to cover a full page only if we don't have a byte range lock lock on the file... but if we have a write delegation on the file or if we have the whole file locked for writing then we should be allowed to extend the write as well. Signed-off-by: Scott Mayhew <smayhew@redhat.com> [Trond: fix up call to nfs_have_delegation()] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Make nfs_readdir revalidate less oftenScott Mayhew2013-07-09
| | | | | | | | Make nfs_readdir revalidate only when we're at the beginning of the directory or if the cached attributes have expired. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Make nfs_attribute_cache_expired() non-staticScott Mayhew2013-07-09
| | | | | | | | NFS: Make nfs_attribute_cache_expired() non-static so we can call it from nfs_readdir(). Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfs: set verifier on existing dentries in nfs_prime_dcacheJeff Layton2013-07-09
| | | | | | | | | | | nfs_prime_dcache currently only sets the verifier when it doesn't initially a matching dentry in the dcache. Set the verifier in the case where we do find a dentry in the dcache. This ensures that we don't have to look up the dentry again if we want to use it after a readdir. Cc: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge tag 'nfs-for-3.11-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2013-07-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client updates from Trond Myklebust: "Feature highlights include: - Add basic client support for NFSv4.2 - Add basic client support for Labeled NFS (selinux for NFSv4.2) - Fix the use of credentials in NFSv4.1 stateful operations, and add support for NFSv4.1 state protection. Bugfix highlights: - Fix another NFSv4 open state recovery race - Fix an NFSv4.1 back channel session regression - Various rpc_pipefs races - Fix another issue with NFSv3 auth negotiation Please note that Labeled NFS does require some additional support from the security subsystem. The relevant changesets have all been reviewed and acked by James Morris." * tag 'nfs-for-3.11-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (54 commits) NFS: Set NFS_CS_MIGRATION for NFSv4 mounts NFSv4.1 Refactor nfs4_init_session and nfs4_init_channel_attrs nfs: have NFSv3 try server-specified auth flavors in turn nfs: have nfs_mount fake up a auth_flavs list when the server didn't provide it nfs: move server_authlist into nfs_try_mount_request nfs: refactor "need_mount" code out of nfs_try_mount SUNRPC: PipeFS MOUNT notification optimization for dying clients SUNRPC: split client creation routine into setup and registration SUNRPC: fix races on PipeFS UMOUNT notifications SUNRPC: fix races on PipeFS MOUNT notifications NFSv4.1 use pnfs_device maxcount for the objectlayout gdia_maxcount NFSv4.1 use pnfs_device maxcount for the blocklayout gdia_maxcount NFSv4.1 Fix gdia_maxcount calculation to fit in ca_maxresponsesize NFS: Improve legacy idmapping fallback NFSv4.1 end back channel session draining NFS: Apply v4.1 capabilities to v4.2 NFSv4.1: Clean up layout segment comparison helper names NFSv4.1: layout segment comparison helpers should take 'const' parameters NFSv4: Move the DNS resolver into the NFSv4 module rpc_pipefs: only set rpc_dentry_ops if d_op isn't already set ...
| * Merge branch 'labeled-nfs' into linux-nextTrond Myklebust2013-06-28
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * labeled-nfs: NFS: Apply v4.1 capabilities to v4.2 NFS: Add in v4.2 callback operation NFS: Make callbacks minor version generic Kconfig: Add Kconfig entry for Labeled NFS V4 client NFS: Extend NFS xattr handlers to accept the security namespace NFS: Client implementation of Labeled-NFS NFS: Add label lifecycle management NFS:Add labels to client function prototypes NFSv4: Extend fattr bitmaps to support all 3 words NFSv4: Introduce new label structure NFSv4: Add label recommended attribute and NFSv4 flags NFSv4.2: Added NFS v4.2 support to the NFS client SELinux: Add new labeling type native labels LSM: Add flags field to security_sb_set_mnt_opts for in kernel mount data. Security: Add Hook to test if the particular xattr is part of a MAC model. Security: Add hook to calculate context based on a negative dentry. NFS: Add NFSv4.2 protocol constants Conflicts: fs/nfs/nfs4proc.c
| | * NFS: Apply v4.1 capabilities to v4.2Bryan Schumaker2013-06-19
| | | | | | | | | | | | | | | | | | | | | | | | This fixes POSIX locks and possibly a few other v4.2 features, like readdir plus. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Add in v4.2 callback operationBryan Schumaker2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | NFS v4.2 adds a CB_OFFLOAD operation used by COPY and WRITE_PLUS. Since neither of these operations have been implemented yet, simply return NFS4ERR_NOTSUPP. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Make callbacks minor version genericBryan Schumaker2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | I found a few places that hardcode the minor version number rather than making it dependent on the protocol the callback came in over. This patch makes it easier to add new minor versions in the future. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * Kconfig: Add Kconfig entry for Labeled NFS V4 clientSteve Dickson2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the NFS_V4_SECURITY_LABEL entry which enables security label support for the NFSv4 client Signed-off-by: Steve Dickson <steved@redhat.com> [trond: Make this non-interactive] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Extend NFS xattr handlers to accept the security namespaceDavid Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing NFSv4 xattr handlers do not accept xattr calls to the security namespace. This patch extends these handlers to accept xattrs from the security namespace in addition to the default NFSv4 ACL namespace. Acked-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Client implementation of Labeled-NFSDavid Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements the client transport and handling support for labeled NFS. The patch adds two functions to encode and decode the security label recommended attribute which makes use of the LSM hooks added earlier. It also adds code to grab the label from the file attribute structures and encode the label to be sent back to the server. Acked-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Add label lifecycle managementDavid Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the lifecycle management for the security label structure introduced in an earlier patch. The label is not used yet but allocations and freeing of the structure is handled. Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS:Add labels to client function prototypesDavid Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After looking at all of the nfsv4 operations the label structure has been added to the prototypes of the functions which can transmit label data. Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFSv4: Extend fattr bitmaps to support all 3 wordsDavid Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fattr handling bitmap code only uses the first two fattr words sofar. This patch adds the 3rd word to being sent but doesn't populate it yet. Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFSv4: Introduce new label structureSteve Dickson2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to mimic the way that NFSv4 ACLs are implemented we have created a structure to be used to pass label data up and down the call chain. This patch adds the new structure and new members to the required NFSv4 call structures. Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFSv4.2: Added NFS v4.2 support to the NFS clientSteve Dickson2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | This enable NFSv4.2 support. To enable this code the CONFIG_NFS_V4_2 Kconfig define needs to be set and the -o v4.2 mount option need to be used. Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * LSM: Add flags field to security_sb_set_mnt_opts for in kernel mount data.David Quigley2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no way to differentiate if a text mount option is passed from user space or the kernel. A flags field is being added to the security_sb_set_mnt_opts hook to allow for in kernel security flags to be sent to the LSM for processing in addition to the text options received from mount. This patch also updated existing code to fix compilation errors. Acked-by: Eric Paris <eparis@redhat.com> Acked-by: James Morris <james.l.morris@oracle.com> Signed-off-by: David P. Quigley <dpquigl@tycho.nsa.gov> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Set NFS_CS_MIGRATION for NFSv4 mountsChuck Lever2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | NFS_CS_MIGRATION makes sense only for NFSv4 mounts. Introduced by commit 89652617 (NFS: Introduce "migration" mount option) Fri Sep 14 17:24:11 2012. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 Refactor nfs4_init_session and nfs4_init_channel_attrsAndy Adamson2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nfs4_init_session was originally written to be called prior to nfs4_init_channel_attrs, setting the session target_max response and request sizes that nfs4_init_channel_attrs would pay attention to. In the current code flow, nfs4_init_session, just like nfs4_init_ds_session for the data server case, is called after the session is all negotiated, and is actually used in a RECLAIM COMPLETE call to the server. Remove the un-needed fc_target_max response and request fields from nfs4_session and just set the max_resp_sz and max_rqst_sz in nfs4_init_channel_attrs. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: have NFSv3 try server-specified auth flavors in turnJeff Layton2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current scheme is to try and pick the auth flavor that the server prefers. In some cases though, we may find that we're not actually able to use that auth flavor later. For instance, the server may prefer an AUTH_GSS flavor, but we may not be able to get GSSAPI creds. The current code just gives up at that point. Change it instead to try the ->create_server call using each of the different authflavors in the server's list if one was not specified at mount time. Once we have a successful ->create_server call, return the result. Only give up and return error if all attempts fail. Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: have nfs_mount fake up a auth_flavs list when the server didn't provide itJeff Layton2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of handling this as a special case in the auth-selection code, we can simply fake up an auth_flavs list when the server doesn't provide it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: move server_authlist into nfs_try_mount_requestJeff Layton2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a later patch we're going to want to cycle over this list and attempt to call ->create_server for each different flavor until one succeeds. Move the list allocation to the stack of nfs_try_mount_request() and pass a pointer to it and its length to nfs_request_mount(). Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | nfs: refactor "need_mount" code out of nfs_try_mountJeff Layton2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | This looks like pointless refactoring for now, but we'll flesh out the need_mount case a little more in a later patch. Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 use pnfs_device maxcount for the objectlayout gdia_maxcountAndy Adamson2013-06-28
| | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 use pnfs_device maxcount for the blocklayout gdia_maxcountAndy Adamson2013-06-28
| | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 Fix gdia_maxcount calculation to fit in ca_maxresponsesizeAndy Adamson2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GETDEVICEINFO gdia_maxcount represents all of the data being returned within the GETDEVICEINFO4resok structure and includes the XDR overhead. The CREATE_SESSION ca_maxresponsesize is the maximum reply and includes the RPC headers (including security flavor credentials and verifiers). Split out the struct pnfs_device field maxcount which is the gdia_maxcount from the pglen field which is the reply (the total) buffer length. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Improve legacy idmapping fallbackBryan Schumaker2013-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fallback should happen only when the request_key() call fails, because this indicates that there was a problem running the nfsidmap program. We shouldn't call the legacy code if the error was elsewhere. Signed-off-by: Bryan Schumaker <bjschuma@netappp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1 end back channel session drainingAndy Adamson2013-06-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to ensure that we clear NFS4_SLOT_TBL_DRAINING on the back channel when we're done recovering the session. Regression introduced by commit 774d5f14e (NFSv4.1 Fix a pNFS session draining deadlock) Signed-off-by: Andy Adamson <andros@netapp.com> [Trond: Changed order to start back-channel first. Minor code cleanup] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org [>=3.10]
| * | NFSv4.1: Clean up layout segment comparison helper namesTrond Myklebust2013-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Give them names that are a bit more consistent with the general pNFS naming scheme. - lo_seg_contained -> pnfs_lseg_range_contained - lo_seg_intersecting -> pnfs_lseg_range_intersecting - cmp_layout -> pnfs_lseg_range_cmp - is_matching_lseg -> pnfs_lseg_range_match Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: layout segment comparison helpers should take 'const' parametersTrond Myklebust2013-06-18
| | | | | | | | | | | | | | | | | | Also strip off the unnecessary 'inline' declarations. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Move the DNS resolver into the NFSv4 moduleTrond Myklebust2013-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The other protocols don't use it, so make it local to NFSv4, and remove the EXPORT. Also ensure that we only compile in cache_lib.o if we're using the legacy DNS resolver. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Bryan Schumaker <bjschuma@netapp.com>
| * | NFSv4: SETCLIENTID add the format string for the NETIDDjalal Harouni2013-06-18
| | | | | | | | | | | | | | | | | | | | | | | | Make sure that NFSv4 SETCLIENTID does not parse the NETID as a format string. Signed-off-by: Djalal Harouni <tixxdz@opendz.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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