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path: root/fs/nfsd/nfs4idmap.c
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* NFSD: pass null terminated buf to kstrtouint()Malahal Naineni2012-09-10
| | | | | | | | | The 'buf' is prepared with null termination with intention of using it for this purpose, but 'name' is passed instead! Signed-off-by: Malahal Naineni <malahal@us.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* fs/nfsd/nfs4idmap.c: adjust inconsistent IS_ERR and PTR_ERRJulia Lawall2012-09-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change the call to PTR_ERR to access the value just tested by IS_ERR. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1; @@ ( if (IS_ERR(e)) { ... PTR_ERR(e) ... } | if (IS_ERR(e=e1)) { ... PTR_ERR(e) ... } | *if (IS_ERR(e)) { ... * PTR_ERR(e1) ... } ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* SUNRPC: service request network namespace helper introducedStanislav Kinsbursky2012-07-27
| | | | | | | | This is a cleanup patch - makes code looks simplier. It replaces widely used rqstp->rq_xprt->xpt_net by introduced SVC_NET(rqstp). Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: move rq_flavor into svc_credJ. Bruce Fields2012-05-31
| | | | | | | Move the rq_flavor into struct svc_cred, and use it in setclientid and exchange_id comparisons as well. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: make name-to-id cache allocated per network namespace contextStanislav Kinsbursky2012-04-12
| | | | | Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: make id-to-name cache allocated per network namespace contextStanislav Kinsbursky2012-04-12
| | | | | Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: pass network context to idmap init/exit functionsStanislav Kinsbursky2012-04-12
| | | | | | | These functions will be called from per-net operations. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* NFSd: remove hard-coded dereferences to name-to-id and id-to-name cachesStanislav Kinsbursky2012-04-11
| | | | | | | | | These dereferences to global static caches are redundant. They also prevents converting these caches into per-net ones. So this patch is cleanup + precursor of patch set,a which will make them per-net. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: memory corruption in numeric_name_to_id()Dan Carpenter2012-03-28
| | | | | | | | "id" is type is a uid_t (32 bits) but on 64 bit systems strict_strtoul() modifies 64 bits of data. We should use kstrtouint() instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: allow numeric idmappingJ. Bruce Fields2012-03-26
| | | | | | | | | | | | | | | | | | | | | | Mimic the client side by providing a module parameter that turns off idmapping in the auth_sys case, for backwards compatibility with NFSv2 and NFSv3. Unlike in the client case, we don't have any way to negotiate, since the client can return an error to us if it doesn't like the id that we return to it in (for example) a getattr call. However, it has always been possible for servers to return numeric id's, and as far as we're aware clients have always been able to handle them. Also, in the auth_sys case clients already need to have numeric id's the same between client and server. Therefore we believe it's safe to default this to on; but the module parameter is available to return to previous behavior if this proves to be a problem in some unexpected setup. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* NFSd: use network-namespace-aware cache registering routinesStanislav Kinsbursky2011-12-07
| | | | | | | | | | v2: cache_register_net() and cache_unregister_net() GPL exports added This is a cleanup patch. Hope, some day generic cache_register() and cache_unregister() will be removed. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: kill unused macro definitionShan Wei2011-03-07
| | | | | | | | These macros had never been used for several years. So, remove them. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: return nfs errno from name_to_id functionsJ. Bruce Fields2011-01-04
| | | | | | This avoids the need for the confusing ESRCH mapping. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: move idmap and acl header files into fs/nfsdJ. Bruce Fields2011-01-04
| | | | | | These are internal nfsd interfaces. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: name->id mapping should fail with BADOWNER not BADNAMEJ. Bruce Fields2011-01-04
| | | | | | | | | | | | | According to rfc 3530 BADNAME is for strings that represent paths; BADOWNER is for user/group names that don't map. And the too-long name should probably be BADOWNER as well; it's effectively the same as if we couldn't map it. Cc: stable@kernel.org Reported-by: Trond Myklebust <Trond.Myklebust@netapp.com> Reported-by: Simon Kirby <sim@hostway.ca> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd/idmap: drop special request deferal in favour of improved default.NeilBrown2010-09-21
| | | | | | | | | | | The idmap code manages request deferal by waiting for a reply from userspace rather than putting the NFS request on a queue to be retried from the start. Now that the common deferal code does this there is no need for the special code in idmap. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* sunrpc: use seconds since boot in expiry cacheNeilBrown2010-09-07
| | | | | | | | | | | | This protects us from confusion when the wallclock time changes. We convert to and from wallclock when setting or reading expiry times. Also use seconds since boot for last_clost time. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* nfsd: remove pointless paths in file headersJ. Bruce Fields2009-12-15
| | | | | | | | The new .h files have paths at the top that are now out of date. While we're here, just remove all of those from fs/nfsd; they never served any purpose. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: Source files #include cleanupsBoaz Harrosh2009-12-14
| | | | | | | | | | | Now that the headers are fixed and carry their own wait, all fs/nfsd/ source files can include a minimal set of headers. and still compile just fine. This patch should improve the compilation speed of the nfsd module. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* headers: utsname.h reduxAlexey Dobriyan2009-09-23
| | | | | | | | | | | | | * remove asm/atomic.h inclusion from linux/utsname.h -- not needed after kref conversion * remove linux/utsname.h inclusion from files which do not need it NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however due to some personality stuff it _is_ needed -- cowardly leave ELF-related headers and files alone. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* SUNRPC: Allow the cache_detail to specify alternative upcall mechanismsTrond Myklebust2009-08-09
| | | | | | | | | | | | For events that are rare, such as referral DNS lookups, it makes limited sense to have a daemon constantly listening for upcalls on a channel. An alternative in those cases might simply be to run the app that fills the cache using call_usermodehelper_exec() and friends. The following patch allows the cache_detail to specify alternative upcall mechanisms for these particular cases. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSD: Clean up the idmapper warning...Trond Myklebust2009-08-09
| | | | | | What part of 'internal use' is so hard to understand? Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfsd: fix sparse warningsHarvey Harrison2008-04-23
| | | | | | | | | | | | | | | | | | | | | | Add extern to nfsd/nfsd.h fs/nfsd/nfssvc.c:146:5: warning: symbol 'nfsd_nrthreads' was not declared. Should it be static? fs/nfsd/nfssvc.c:261:5: warning: symbol 'nfsd_nrpools' was not declared. Should it be static? fs/nfsd/nfssvc.c:269:5: warning: symbol 'nfsd_get_nrthreads' was not declared. Should it be static? fs/nfsd/nfssvc.c:281:5: warning: symbol 'nfsd_set_nrthreads' was not declared. Should it be static? fs/nfsd/export.c:1534:23: warning: symbol 'nfs_exports_op' was not declared. Should it be static? Add include of auth.h fs/nfsd/auth.c:27:5: warning: symbol 'nfsd_setuser' was not declared. Should it be static? Make static, move forward declaration closer to where it's needed. fs/nfsd/nfs4state.c:1877:1: warning: symbol 'laundromat_main' was not declared. Should it be static? Make static, forward declaration was already marked static. fs/nfsd/nfs4idmap.c:206:1: warning: symbol 'idtoname_parse' was not declared. Should it be static? fs/nfsd/vfs.c:1156:1: warning: symbol 'nfsd_create_setattr' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: allow cache_register to return error on failureJ. Bruce Fields2008-02-01
| | | | | | | | | | | | | Newer server features such as nfsv4 and gss depend on proc to work, so a failure to initialize the proc files they need should be treated as fatal. Thanks to Andrew Morton for style fix and compile fix in case where CONFIG_NFSD_V4 is undefined. Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: cache unregistration needn't return errorJ. Bruce Fields2008-02-01
| | | | | | | | | | There's really nothing much the caller can do if cache unregistration fails. And indeed, all any caller does in this case is print an error and continue. So just return void and move the printk's inside cache_unregister. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: fix broken length check in nfs4idmap.cJ. Bruce Fields2008-02-01
| | | | | | | | | | | | Obviously at some point we thought "error" represented the length when positive. This appears to be a long-standing typo. Thanks to Prasad Potluri <pvp@us.ibm.com> for finding the problem and proposing an earlier version of this patch. Cc: Steve French <smfltc@us.ibm.com> Cc: Prasad V Potluri <pvp@us.ibm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: nfs4 name->id mapping not correctly parsing negative downcallJ. Bruce Fields2007-10-09
| | | | | | | Note that qword_get() returns length or -1, not an -ERROR. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Acked-by: Neil Brown <neilb@suse.de>
* nfsd4: idmap upcalls should use unsigned uid and gidJ. Bruce Fields2007-07-31
| | | | | | | | | We shouldn't be using negative uid's and gid's in the idmap upcalls. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: set rq_client to ip-address-determined-domainJ. Bruce Fields2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want it to be possible for users to restrict exports both by IP address and by pseudoflavor. The pseudoflavor information has previously been passed using special auth_domains stored in the rq_client field. After the preceding patch that stored the pseudoflavor in rq_pflavor, that's now superfluous; so now we use rq_client for the ip information, as auth_null and auth_unix do. However, we keep around the special auth_domain in the rq_gssclient field for backwards compatibility purposes, so we can still do upcalls using the old "gss/pseudoflavor" auth_domain if upcalls using the unix domain to give us an appropriate export. This allows us to continue supporting old mountd. In fact, for this first patch, we always use the "gss/pseudoflavor" auth_domain (and only it) if it is available; thus rq_client is ignored in the auth_gss case, and this patch on its own makes no change in behavior; that will be left to later patches. Note on idmap: I'm almost tempted to just replace the auth_domain in the idmap upcall by a dummy value--no version of idmapd has ever used it, and it's unlikely anyone really wants to perform idmapping differently depending on the where the client is (they may want to perform *credential* mapping differently, but that's a different matter--the idmapper just handles id's used in getattr and setattr). But I'm updating the idmapd code anyway, just out of general backwards-compatibility paranoia. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-08
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-14
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fs: Conversions from kmalloc+memset to k(z|c)allocPanagiotis Issaris2006-09-27
| | | | | | | | | Conversions from kmalloc+memset to kzalloc. Signed-off-by: Panagiotis Issaris <takis@issaris.org> Jffs2-bit-acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] knfsd: Convert sunrpc_cache to use krefsNeilBrown2006-03-27
| | | | | | | | .. it makes some of the code nicer. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Use new cache code for name/id lookup cachesNeilBrown2006-03-27
| | | | | | Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Get rid of 'inplace' sunrpc cachesNeilBrown2006-03-27
| | | | | | | | | These were an unnecessary wart. Also only have one 'DefineSimpleCache..' instead of two. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sunrpc: cache_register can use wrong module referenceBruce Allan2005-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | When registering an RPC cache, cache_register() always sets the owner as the sunrpc module. However, there are RPC caches owned by other modules. With the incorrect owner setting, the real owning module can be removed potentially with an open reference to the cache from userspace. For example, if one were to stop the nfs server and unmount the nfsd filesystem, the nfsd module could be removed eventhough rpc.idmapd had references to the idtoname and nametoid caches (i.e. /proc/net/rpc/nfs4.<cachename>/channel is still open). This resulted in a system panic on one of our machines when attempting to restart the nfs services after reloading the nfsd module. The following patch adds a 'struct module *owner' field in struct cache_detail. The owner is further assigned to the struct proc_dir_entry in cache_register() so that the module cannot be unloaded while user-space daemons have an open reference on the associated file under /proc. Signed-off-by: Bruce Allan <bwa@us.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: make needlessly global code staticNeilBrown2005-06-24
| | | | | | | | | | | | This patch contains the following possible cleanups: - make needlessly global code static Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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