CIFS.UPCALL(8) System Administration tools CIFS.UPCALL(8)NAMEcifs.upcall - Userspace upcall helper for Common Internet File System
(CIFS)
SYNOPSIScifs.upcall [-c] [-v] {keyid}
DESCRIPTION
This tool is part of the samba(7) suite.
cifs.upcall is a userspace helper program for the linux CIFS client
filesystem. There are a number of activities that the kernel cannot
easily do itself. This program is a callout program that does these
things for the kernel and then returns the result.
cifs.upcall is generally intended to be run when the kernel calls
request-key(8) for a particular key type. While it can be run directly
from the command-line, it´s not generally intended to be run that way.
OPTIONS-c
When handling a kerberos upcall, use a service principal that
starts with "cifs/". The default is to use the "host/" service
principal.
-v
Print version number and exit.
CONFIGURATION FOR KEYCTLcifs.upcall is designed to be called from the kernel via the
request-key callout program. This requres that request-key be told
where and how to call this program. The current cifs.upcall program
handles two different key types:
cifs.spnego
This keytype is for retrieving kerberos session keys
dns_resolver
This key type is for resolving hostnames into IP addresses
To make this program useful for CIFS, you´ll need to set up entries for
them in request-key.conf(5). Here´s an example of an entry for each key
type:
#OPERATION TYPE D C PROGRAM ARG1 ARG2...
#========= ============= = = ==========================================
create cifs.spnego * * /usr/local/sbin/cifs.upcall -c %k
create dns_resolver * * /usr/local/sbin/cifs.upcall %k
See request-key.conf5() for more info on each field.
SEE ALSOrequest-key.conf(5), mount.cifs(8)AUTHOR
Igor Mammedov wrote the cifs.upcall program.
Jeff Layton authored this manpage.
The maintainer of the Linux CIFS VFS is Steve French.
The Linux CIFS Mailing list is the preferred place to ask questions
regarding these programs.
Samba 3.2 09/15/2008 CIFS.UPCALL(8)
