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Sachin Bhamare 18d98f6c04 pnfs-obj: autologin: Add support for protocol autologin ... The pnfs-objects protocol mandates that we autologin into devices not present in the system, according to information specified in the get_device_info returned from the server. The Protocol specifies two login hints. 1. An IP address:port combination 2. A string URI which is constructed as a URL with a protocol prefix followed by :// and a string as address. For each protocol prefix the string-address format might be different. We only support the second option. The first option is just redundant to the second one. NOTE: The Kernel part of autologin does not parse the URI string. It just channels it to a user-mode script. So any new login protocols should only update the user-mode script which is a part of the nfs-utils package, but the Kernel need not change. We implement the autologin by using the call_usermodehelper() API. (Thanks to Steve Dickson <steved@redhat.com> for pointing it out) So there is no running daemon needed, and/or special setup. We Add the osd_login_prog Kernel module parameters which defaults to: /sbin/osd_login Kernel try's to upcall the program specified in osd_login_prog. If the file is not found or the execution fails Kernel will disable any farther upcalls, by zeroing out osd_login_prog, Until Admin re-enables it by setting the osd_login_prog parameter to a proper program. Also add text about the osd_login program command line API to: Documentation/filesystems/nfs/pnfs.txt and documentation of the new osd_login_prog module parameter to: Documentation/kernel-parameters.txt TODO: Add timeout option in the case osd_login program gets stuck Signed-off-by: Sachin Bhamare <sbhamare@panasas.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>		13 years ago
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00-INDEX	NFSD: Added fault injection documentation	13 years ago
Exporting	Documentation: Exporting: update description of d_splice_alias	14 years ago
fault_injection.txt	NFSD: Added fault injection documentation	13 years ago
idmapper.txt	NFS: Update idmapper documentation	13 years ago
knfsd-stats.txt	nfs: move more to Documentation/filesystems/nfs	15 years ago
nfs-rdma.txt	…
nfs.txt	…
nfs41-server.txt	nfsd4: update nfsv4.1 implementation notes	14 years ago
nfsroot.txt	doc: fix wrong arch/i386 references	14 years ago
pnfs.txt	pnfs-obj: autologin: Add support for protocol autologin	13 years ago
rpc-cache.txt	Documentation/: it's -> its where appropriate	15 years ago