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2006-12-06rpcgss: krb5: miscellaneous cleanupJ. Bruce Fields
Miscellaneous cosmetic fixes. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: krb5: ignore seedJ. Bruce Fields
We're currently not actually using seed or seed_init. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: krb5: sanity check sealalg value in the downcallJ. Bruce Fields
The sealalg is checked in several places, giving the impression it could be either SEAL_ALG_NONE or SEAL_ALG_DES. But in fact SEAL_ALG_NONE seems to be sufficient only for making mic's, and all the contexts we get must be capable of wrapping as well. So the sealalg must be SEAL_ALG_DES. As with signalg, just check for the right value on the downcall and ignore it otherwise. Similarly, tighten expectations for the sealalg on incoming tokens, in case we do support other values eventually. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: krb5: clean up some goto's, etc.J. Bruce Fields
Remove some unnecessary goto labels; clean up some return values; etc. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: simplify make_checksumJ. Bruce Fields
We're doing some pointless translation between krb5 constants and kernel crypto string names. Also clean up some related spkm3 code as necessary. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: krb5: kill checksum_type, miscellaneous small cleanupJ. Bruce Fields
Previous changes reveal some obvious cruft. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpcgss: krb5: expect a constant signalg valueJ. Bruce Fields
We also only ever receive one value of the signalg, so let's not pretend otherwise Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06gss: krb5: remove signalg and sealalgJ. Bruce Fields
We designed the krb5 context import without completely understanding the context. Now it's clear that there are a number of fields that we ignore, or that we depend on having one single value. In particular, we only support one value of signalg currently; so let's check the signalg field in the downcall (in case we decide there's something else we could support here eventually), but ignore it otherwise. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpc: spkm3 updateOlga Kornievskaia
This updates the spkm3 code to bring it up to date with our current understanding of the spkm3 spec. In doing so, we're changing the downcall format used by gssd in the spkm3 case, which will cause an incompatilibity with old userland spkm3 support. Since the old code a) didn't implement the protocol correctly, and b) was never distributed except in the form of some experimental patches from the citi web site, we're assuming this is OK. We do detect the old downcall format and print warning (and fail). We also include a version number in the new downcall format, to be used in the future in case any further change is required. In some more detail: - fix integrity support - removed dependency on NIDs. instead OIDs are used - known OID values for algorithms added. - fixed some context fields and types Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpc: move process_xdr_bufOlga Kornievskaia
Since process_xdr_buf() is useful outside of the kerberos-specific code, we move it to net/sunrpc/xdr.c, export it, and rename it in keeping with xdr_* naming convention of xdr.c. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpc: gss: fix a kmap_atomic race in krb5 codeJ. Bruce Fields
This code is never called from interrupt context; it's always run by either a user thread or rpciod. So KM_SKB_SUNRPC_DATA is inappropriate here. Thanks to Aimé Le Rouzic for capturing an oops which showed the kernel taking an interrupt while we were in this piece of code, resulting in a nested kmap_atomic(.,KM_SKB_SUNRPC_DATA) call from xdr_partial_copy_from_skb(). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06rpc: gss: eliminate print_hexl()'sJ. Bruce Fields
Dumping all this data to the logs is wasteful (even when debugging is turned off), and creates too much output to be useful when it's turned on. Fix a minor style bug or two while we're at it. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-02[SUNRPC]: Use k{mem,str}dup where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-10-10[PATCH] net/sunrpc/auth_gss/svcauth_gss.c endianness regressionAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: svcrpc: gss: fix failure on SVC_DENIED in integrity caseJ.Bruce Fields
If the request is denied after gss_accept was called, we shouldn't try to wrap the reply. We were checking the accept_stat but not the reply_stat. To check the reply_stat in _release, we need a pointer to before (rather than after) the verifier, so modify body_start appropriately. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: svcrpc: gss: factor out some common wrapping codeJ.Bruce Fields
Factor out some common code from the integrity and privacy cases. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: Replace two page lists in struct svc_rqst with oneNeilBrown
We are planning to increase RPCSVC_MAXPAGES from about 8 to about 256. This means we need to be a bit careful about arrays of size RPCSVC_MAXPAGES. struct svc_rqst contains two such arrays. However the there are never more that RPCSVC_MAXPAGES pages in the two arrays together, so only one array is needed. The two arrays are for the pages holding the request, and the pages holding the reply. Instead of two arrays, we can simply keep an index into where the first reply page is. This patch also removes a number of small inline functions that probably server to obscure what is going on rather than clarify it, and opencode the needed functionality. Also remove the 'rq_restailpage' variable as it is *always* 0. i.e. if the response 'xdr' structure has a non-empty tail it is always in the same pages as the head. check counters are initilised and incr properly check for consistant usage of ++ etc maybe extra some inlines for common approach general review Signed-off-by: Neil Brown <neilb@suse.de> Cc: Magnus Maatta <novell@kiruna.se> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03fix file specification in commentsUwe Zeisberger
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-09-28[SUNRPC]: more sunrpc endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-28[SUNRPC]: trivial endianness annotationsAlexey Dobriyan
pure s/u32/__be32/ [AV: large part based on Alexey's patches] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-28[SUNRPC]: svc_{get,put}nl()Alexey Dobriyan
* add svc_getnl(): Take network-endian value from buffer, convert to host-endian and return it. * add svc_putnl(): Take host-endian value, convert to network-endian and put it into a buffer. * annotate svc_getu32()/svc_putu32() as dealing with network-endian. * convert to svc_getnl(), svc_putnl(). [AV: in large part it's a carved-up Alexey's patch] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22SUNRPC: Make rpc_mkpipe() take the parent dentry as an argumentTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-21[CRYPTO] users: Use crypto_hash interface instead of crypto_digestHerbert Xu
This patch converts all remaining crypto_digest users to use the new crypto_hash interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21[SUNRPC] GSS: Use block ciphers where applicableHerbert Xu
This patch converts SUNRPC/GSS to use the new block cipher type where applicable. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-08-24SUNRPC: Fix dentry refcounting issues with users of rpc_pipefsTrond Myklebust
rpc_unlink() and rpc_rmdir() will dput the dentry reference for you. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> (cherry picked from a05a57effa71a1f67ccbfc52335c10c8b85f3f6a commit)
2006-08-24SUNRPC: make rpc_unlink() take a dentry argument instead of a pathTrond Myklebust
Signe-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> (cherry picked from 88bf6d811b01a4be7fd507d18bf5f1c527989089 commit)
2006-07-21[NET]: Conversions from kmalloc+memset to k(z|c)alloc.Panagiotis Issaris
Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30[PATCH] knfsd: svcrpc: gss: server-side implementation of rpcsec_gss privacyJ. Bruce Fields
Server-side implementation of rpcsec_gss privacy, which enables encryption of the payload of every rpc request and response. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] knfsd: svcrpc: Simplify nfsd rpcsec_gss integrity codeJ. Bruce Fields
Pull out some of the integrity code into its own function, otherwise svcauth_gss_release() is going to become very ungainly after the addition of privacy code. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] knfsd: svcrpc: gss: simplify rsc_parse()J. Bruce Fields
Adopt a simpler convention for gss_mech_put(), to simplify rsc_parse(). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] spin/rwlock init cleanupsIngo Molnar
locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26spelling fixesAndreas Mohr
acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-19SUNRPC: Dead code in net/sunrpc/auth_gss/auth_gss.cEric Sesterhenn
Hi, the coverity checker spotted that cred is always NULL when we jump to out_err ( there is just one case, when we fail to allocate the memory for cred ) This is Coverity ID #79 Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-04-19RPCSEC_GSS: fix leak in krb5 code caused by superfluous kmallocJ. Bruce Fields
I was sloppy when generating a previous patch; I modified the callers of krb5_make_checksum() to allocate memory for the buffer where the result is returned, then forgot to modify krb5_make_checksum to stop allocating that memory itself. The result is a per-packet memory leak. This fixes the problem by removing the now-superfluous kmalloc(). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-04-11[PATCH] knfsd: svcrpc: gss: don't call svc_take_page unnecessarilyNeilBrown
We're using svc_take_page here to get another page for the tail in case one wasn't already allocated. But there isn't always guaranteed to be another page available. Also fix a typo that made us check the tail buffer for space when we meant to be checking the head buffer. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] knfsd: Convert sunrpc_cache to use krefsNeilBrown
.. 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>
2006-03-27[PATCH] knfsd: Use new cache code for rsc cacheNeilBrown
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] knfsd: Use new sunrpc cache for rsi cacheNeilBrown
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] knfsd: Get rid of 'inplace' sunrpc cachesNeilBrown
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>
2006-03-27[PATCH] knfsd: Change the store of auth_domains to not be a 'cache'NeilBrown
The 'auth_domain's are simply handles on internal data structures. They do not cache information from user-space, and forcing them into the mold of a 'cache' misrepresents their true nature and causes confusion. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-20SUNRPC,RPCSEC_GSS: spkm3: import contexts using NID_cast5_cbcJ. Bruce Fields
Import the NID_cast5_cbc from the userland context. Not used. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20SUNRPC,RPCSEC_GSS: fix krb5 sequence numbers.J. Bruce Fields
Use a spinlock to ensure unique sequence numbers when creating krb5 gss tokens. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksumJ. Bruce Fields
Remove unnecessary kmalloc of temporary space to hold the md5 result; it's small enough to just put on the stack. This code may be called to process rpc's necessary to perform writes, so there's a potential deadlock whenever we kmalloc() here. After this a couple kmalloc()'s still remain, to be removed soon. This also fixes a rare double-free on error noticed by coverity. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20SUNRPC: Ensure that rpc_mkpipe returns a refcounted dentryTrond Myklebust
If not, we cannot guarantee that idmap->idmap_dentry, gss_auth->dentry and clnt->cl_dentry are valid dentries. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-02-01SUNRPC: Move upcall out of auth->au_ops->crcreate()Trond Myklebust
This fixes a bug whereby if two processes try to look up the same auth_gss credential, they may end up creating two creds, and triggering two upcalls because the upcall is performed before the credential is added to the credcache. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-02-01SUNRPC: Fix a lock recursion in the auth_gss downcallTrond Myklebust
When we look up a new cred in the auth_gss downcall so that we can stuff the credcache, we do not want that lookup to queue up an upcall in order to initialise it. To do an upcall here not only redundant, but since we are already holding the inode->i_mutex, it will trigger a lock recursion. This patch allows rpcauth cache searches to indicate that they can cope with uninitialised credentials. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-18[PATCH] svcrpc: gss: svc context creation error handlingJ. Bruce Fields
Allow mechanisms to return more varied errors on the context creation downcall. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-18[PATCH] svcrpc: gss: server context init failure handlingKevin Coffman
We require the server's gssd to create a completed context before asking the kernel to send a final context init reply. However, gssd could be buggy, or under some bizarre circumstances we might purge the context from our cache before we get the chance to use it here. Handle this case by returning GSS_S_NO_CONTEXT to the client. Also move the relevant code here to a separate function rather than nesting excessively. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-18[PATCH] svcrpc: gss: handle the GSS_S_CONTINUEAndy Adamson
Kerberos context initiation is handled in a single round trip, but other mechanisms (including spkm3) may require more, so we need to handle the GSS_S_CONTINUE case in svcauth_gss_accept. Send a null verifier. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06SUNRPC: Make krb5 report unsupported encryption typesJ. Bruce Fields
Print messages when an unsupported encrytion algorthm is requested or there is an error locating a supported algorthm. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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