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2007-10-09SUNRPC: Provide a new API for registering transport implementations\"Talpey, Thomas\
To allow transport capabilities to be loaded dynamically, provide an API for registering and unregistering the transports with the RPC client. Eventually xprt_create_transport() will be changed to search the list of registered transports when initializing a fresh transport. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: add EXPORT_SYMBOL_GPL for generic transport functions\"Talpey, Thomas\
SUNRPC: add EXPORT_SYMBOL_GPL for generic transport functions As a preface to allowing arbitrary transport modules to be loaded dynamically, add EXPORT_SYMBOL_GPL for all generic transport functions that a transport implementation might want to use. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: mark bulk read/write data in xdrbuf\"Talpey, Thomas\
Adds a flag word to the xdrbuf struct which indicates any bulk disposition of the data. This enables RPC transport providers to marshal it efficiently/appropriately, and may enable other optimizations. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: export per-transport rpcbind netid's\"Talpey, Thomas\
The rpcbind (v3+) netid is provided by each RPC client transport. This fixes an omission in IPv6 rpcbind client support, and enables future extension. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: move per-transport rpcbind netid's\"Talpey, Thomas\
Move the TCP/UDP rpcbind netid's from the rpcbind client to a global header. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: RPC bind failures should be permanent for NULL requestsChuck Lever
The purpose of an RPC ping (a NULL request) is to determine whether the remote end is operating and supports the RPC program and version of the request. If we do an RPC bind and the remote's rpcbind service says "this program or service isn't supported" then we have our answer already, and we should give up immediately. This is good for the kernel mount client, as it will cause the request to fail, and then allow an immediate retry with different options. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Split another new rpcbind retry error code from EACCESChuck Lever
Add more new error code processing to the kernel's rpcbind client and to call_bind_status() to distinguish two cases: Case 1: the remote has replied that the program/version tuple is not registered (returns EACCES) Case 2: retry with a lesser rpcbind version (rpcb now returns EPFNOSUPPORT) This change allows more specific error processing for each of these two cases. We now fail case 2 instead of retrying... it's a server configuration error not to support even rpcbind version 2. And don't expose this new error code to user land -- convert it to EIO before failing the RPC. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add a new error code for retry waiting for another binderChuck Lever
Add new error code processing to the kernel's rpcbind client and to call_bind_status() to distinguish two cases: Case 1: the remote has replied that the program/version tuple is not registered (returns -EACCES) Case 2: another process is already in the middle of binding on this transport (now returns -EAGAIN) This change allows more specific retry processing for each of these two cases. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Retry bad rpcbind repliesChuck Lever
When a server returns a bad rpcbind reply, make rpcbind client recovery logic retry with an older protocol version. Older versions are more likely to work correctly. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Make rpcb_decode_getaddr more picky about universal addressesChuck Lever
Add better sanity checking of server replies to the GETVERSADDR reply decoder. Change the error return code: EIO is what other XDR decoding routines return if there is a failure while decoding. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Clean up in rpc_show_tasksChuck Lever
/home/cel/linux/net/sunrpc/clnt.c: In function ‘rpc_show_tasks’: /home/cel/linux/net/sunrpc/clnt.c:1538: warning: signed and unsigned type in conditional expression This points out another case where a conditional expression returns a signed value in one arm and an unsigned value in the other. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Make sure server name is reasonable before trying to print itChuck Lever
Check the length of the passed-in server name before trying to print it in the log. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Use correct argument type in memcpy()Chuck Lever
Noticed by Tom Talpey <tmt@netapp.com>: OBTW, there's a nit on that memcpy, too. The r_addr is an array, so memcpy(&map->r_addr is passing the address of the array as a char **. It's the same as map->r_addr, but technically the wrong type. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: fix a signed v. unsigned comparison nit in rpc_bind_new_programChuck Lever
/home/cel/linux/net/sunrpc/clnt.c: In function ‘rpc_bind_new_program’: /home/cel/linux/net/sunrpc/clnt.c:445: warning: comparison between signed and unsigned RPC version numbers are u32, not int. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Only one dprintk is needed during client creationChuck Lever
Remove one of two identical dprintk's that occur when an RPC client is created. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Fix generation of universal addresses forChuck Lever
Fix some problems with rpcbind v3 and v4 queries from the in-kernel rpcbind client: 1. The r_addr argument must be a full universal address, not just an IP address, and 2. The universal address in r_addr is the address of the remote rpcbind server, not the RPC service being requested This addresses bugzilla.kernel.org report 8891 for 2.6.23-rc and greater. In addition, if the rpcbind client is unable to start the rpcbind request, make sure not to leak the xprt. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2007-10-09SUNRPC: Add support for formatted universal addressesChuck Lever
"Universal addresses" are a string representation of an IP address and port. They are described fully in RFC 3530, section 2.2. Add support for generating them in the RPC client's socket transport module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2007-10-09SUNRPC: Split xs_reclassify_socket into an IPv4 and IPv6 versionChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add a helper for extracting the address using the correct typeChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add IPv6 address support to net/sunrpc/xprtsock.cChuck Lever
Finalize support for setting up RPC client transports to remote RPC services addressed via IPv6. Based on work done by Gilles Quillard at Bull Open Source. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: create connect workers for IPv6Chuck Lever
Clone separate connect worker functions for connecting AF_INET6 sockets. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename IPv4 connect workersChuck Lever
Prepare for introduction of IPv6 versions of same. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Refactor a part of socket connect logic into a helper functionChuck Lever
Finishing a socket connect is the same for IPv4 and IPv6, so split it out into a helper. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: create an IPv6-savvy mechanism for binding to a reserved portChuck Lever
Clone xs_bindresvport into two functions, one that can handle IPv4 addresses, and one that can handle IPv6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename xs_bind() to prepare for IPv6-specific bind methodChuck Lever
Prepare for introduction of IPv6-specific socket bind function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Introduce support for setting the port number in IPv6 addressesChuck Lever
We could clone xs_set_port, but this is easier overall. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: add support for IPv6 to the kernel's rpcbind clientChuck Lever
Prepare for adding IPv6 support to the RPC client by adding IPv6 capabilities to rpcbind. Note that this is support on the query side only; registering IPv6 addresses with the local portmapper will come later. Note we have to take care not to fall back to using version 2 of the rpcbind protocol if we're dealing with IPv6 address. Version 2 doesn't support IPv6 at all. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: add a function to format IPv6 addressesChuck Lever
Clone xs_format_ipv4_peer_addresses into an IPv6 version. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename xs_format_peer_addressesChuck Lever
Prepare to add an IPv6 version of xs_format_peer_addresses by renaming it to xs_format_ipv4_peer_addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add hex-formatted address support to rpc_peeraddr2str()Chuck Lever
Add support for the NFS client's need to export volume information with IP addresses formatted in hex instead of decimal. This isn't used yet, but subsequent patches (not in this series) will change the NFS client to use this functionality. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Free address buffers in a loopChuck Lever
Use more generic logic to free buffers holding formatted addresses. This makes it less likely a bug will be introduced when adding additional buffer types in xs_format_peer_address(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Use standard macros for printing IP addressesChuck Lever
include/linux/kernel.h gives us some nice macros for formatting IP addresses. Use them. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Fix a signed v. unsigned comparison in net/sunrpc/xprtsock.cChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Fix a signed v. unsigned comparison in rpcbind's XDR routinesChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Convert rpc_pipefs to use the generic filesystem notification hooksTrond Myklebust
This will allow rpc.gssd to use inotify instead of dnotify in order to locate new rpc upcall pipes. This also requires the exporting of __audit_inode_child(), which is used by fsnotify_create() and fsnotify_mkdir(). Ccing David Woodhouse. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-09-20rpc: fix garbage in printk in svc_tcp_accept()Wolfgang Walter
we upgraded the kernel of a nfs-server from 2.6.17.11 to 2.6.22.6. Since then we get the message lockd: too many open TCP sockets, consider increasing the number of nfsd threads lockd: last TCP connect from ^\\236^\É^D These random characters in the second line are caused by a bug in svc_tcp_accept. (Note: there are two previous __svc_print_addr(sin, buf, sizeof(buf)) calls in this function, either of which would initialize buf correctly; but both are inside "if"'s and are not necessarily executed. This is less obvious in the second case, which is inside a dprintk(), which is a macro which expands to an if statement.) Signed-off-by: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-14Correctly close old nfsd/lockd sockets.Neil Brown
Commit aaf68cfbf2241d24d46583423f6bff5c47e088b3 added a bias to sk_inuse, so this test for an unused socket now fails. So no sockets get closed because they are old (they might get closed if the client closed them). This bug has existed since 2.6.21-rc1. Thanks to Wolfgang Walter for finding and reporting the bug. Cc: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-13[SUNRPC]: Clean up duplicate includes in net/sunrpc/Jesper Juhl
This patch cleans up duplicate includes in net/sunrpc/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-07SUNRPC: Replace flush_workqueue() with cancel_work_sync() and friendsTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07SUNRPC: Don't call gss_delete_sec_context() from an rcu contextTrond Myklebust
Doing so may not be safe... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07SUNRPC: Fix a race in rpciod_down()Trond Myklebust
The commit 4ada539ed77c7a2bbcb75cafbbd7bd8d2b9bef7b lead to the unpleasant possibility of an asynchronous rpc_task being required to call rpciod_down() when it is complete. This again means that the rpciod workqueue may get to call destroy_workqueue on itself -> hang... Change rpciod_up/rpciod_down to just get/put the module, and then create/destroy the workqueues on module load/unload. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-26net/* misc endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24nfsd: fix possible oops on re-insertion of rpcsec_gss modulesJ. Bruce Fields
The handling of the re-registration case is wrong here; the "test" that was returned from auth_domain_lookup will not be used again, so that reference should be put. And auth_domain_lookup never did anything with "new" in this case, so we should just clean it up ourself. Thanks to Akinobu Mita for bug report, analysis, and testing. Cc: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-19SUNRPC: move bkl locking and xdr proc invocation into a common helperJ. Bruce Fields
Since every invocation of xdr encode or decode functions takes the BKL now, there's a lot of redundant lock_kernel/unlock_kernel pairs that we can pull out into a common function. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits) [TG3]: Fix msi issue with kexec/kdump. [NET] XFRM: Fix whitespace errors. [NET] TIPC: Fix whitespace errors. [NET] SUNRPC: Fix whitespace errors. [NET] SCTP: Fix whitespace errors. [NET] RXRPC: Fix whitespace errors. [NET] ROSE: Fix whitespace errors. [NET] RFKILL: Fix whitespace errors. [NET] PACKET: Fix whitespace errors. [NET] NETROM: Fix whitespace errors. [NET] NETFILTER: Fix whitespace errors. [NET] IPV4: Fix whitespace errors. [NET] DCCP: Fix whitespace errors. [NET] CORE: Fix whitespace errors. [NET] BLUETOOTH: Fix whitespace errors. [NET] AX25: Fix whitespace errors. [PATCH] mac80211: remove rtnl locking in ieee80211_sta.c [PATCH] mac80211: fix GCC warning on 64bit platforms [GENETLINK]: Dynamic multicast groups. [NETLIKN]: Allow removing multicast groups. ...
2007-07-19sunrpc: use vfs_path_lookupJosef 'Jeff' Sipek
use vfs_path_lookup instead of open-coding the necessary functionality. Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Neil Brown <neilb@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19[NET] SUNRPC: Fix whitespace errors.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-17knfsd: nfsd4: secinfo handling without secinfo= optionJ. Bruce Fields
We could return some sort of error in the case where someone asks for secinfo on an export without the secinfo= option set--that'd be no worse than what we've been doing. But it's not really correct. So, hack up an approximate secinfo response in that case--it may not be complete, but it'll tell the client at least one acceptable security flavor. 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>
2007-07-17knfsd: rpc: add gss krb5 and spkm3 oid valuesUsha Ketineni
Adds oid values to the gss_api mechanism structures. On the NFSV4 server side, these are required as part of the security triple (oid,qop,service) information being sent in the response of the SECINFO operation. Signed-off-by: Usha Ketineni <uketinen@us.ibm.com> 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>
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