311 lines
12 KiB
Python
311 lines
12 KiB
Python
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#!/usr/bin/env python3
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"""
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Read in the deprecated /etc/sysconfig/nfs file and
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set the corresponding values in nfs.conf
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"""
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from __future__ import print_function
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import os
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import sys
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import getopt
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import subprocess
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import configparser
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CONF_NFS = '/etc/nfs.conf'
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CONF_IDMAP = '/etc/idmapd.conf'
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SYSCONF_NFS = '/etc/sysconfig/nfs'
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SYSCONF_BACKUP = ".rpmsave"
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CONF_TOOL = '/usr/sbin/nfsconf'
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# options for nfsd found in RPCNFSDARGS
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OPTS_NFSD = 'dH:p:rR:N:V:stTuUG:L:'
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LONG_NFSD = ['debug', 'host=', 'port=', 'rdma=', 'nfs-version=', 'no-nfs-version=',
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'tcp', 'no-tcp', 'udp', 'no-udp', 'grace-time=', 'lease-time=']
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CONV_NFSD = {'-d': (CONF_NFS, 'nfsd', 'debug', 'all'),
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'-H': (CONF_NFS, 'nfsd', 'host', ','),
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'-p': (CONF_NFS, 'nfsd', 'port', '$1'),
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'-r': (CONF_NFS, 'nfsd', 'rdma', 'nfsrdma'),
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'-R': (CONF_NFS, 'nfsd', 'rdma', '$1'),
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'-N': (CONF_NFS, 'nfsd', 'vers$1', 'n'),
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'-V': (CONF_NFS, 'nfsd', 'vers$1', 'y'),
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'-t': (CONF_NFS, 'nfsd', 'tcp', '1'),
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'-T': (CONF_NFS, 'nfsd', 'tcp', '0'),
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'-u': (CONF_NFS, 'nfsd', 'udp', '1'),
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'-U': (CONF_NFS, 'nfsd', 'udp', '0'),
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'-G': (CONF_NFS, 'nfsd', 'grace-time', '$1'),
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'-L': (CONF_NFS, 'nfsd', 'lease-time', '$1'),
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'$1': (CONF_NFS, 'nfsd', 'threads', '$1'),
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'--debug': (CONF_NFS, 'nfsd', 'debug', 'all'),
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'--host': (CONF_NFS, 'nfsd', 'host', ','),
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'--port': (CONF_NFS, 'nfsd', 'port', '$1'),
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'--rdma': (CONF_NFS, 'nfsd', 'rdma', '$1'),
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'--no-nfs-version': (CONF_NFS, 'nfsd', 'vers$1', 'n'),
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'--nfs-version': (CONF_NFS, 'nfsd', 'vers$1', 'y'),
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'--tcp': (CONF_NFS, 'nfsd', 'tcp', '1'),
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'--no-tcp': (CONF_NFS, 'nfsd', 'tcp', '0'),
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'--udp': (CONF_NFS, 'nfsd', 'udp', '1'),
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'--no-udp': (CONF_NFS, 'nfsd', 'udp', '0'),
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'--grace-time': (CONF_NFS, 'nfsd', 'grace-time', '$1'),
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'--lease-time': (CONF_NFS, 'nfsd', 'lease-time', '$1'),
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}
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# options for mountd found in RPCMOUNTDOPTS
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OPTS_MOUNTD = 'go:d:H:p:N:nrs:t:V:'
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LONG_MOUNTD = ['descriptors=', 'debug=', 'nfs-version=', 'no-nfs-version=',
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'port=', 'no-tcp', 'ha-callout=', 'state-directory-path=',
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'num-threads=', 'reverse-lookup', 'manage-gids', 'no-udp']
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CONV_MOUNTD = {'-g': (CONF_NFS, 'mountd', 'manage-gids', '1'),
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'-o': (CONF_NFS, 'mountd', 'descriptors', '$1'),
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'-d': (CONF_NFS, 'mountd', 'debug', '$1'),
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'-H': (CONF_NFS, 'mountd', 'ha-callout', '$1'),
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'-p': (CONF_NFS, 'mountd', 'port', '$1'),
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'-N': (CONF_NFS, 'nfsd', 'vers$1', 'n'),
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'-V': (CONF_NFS, 'nfsd', 'vers$1', 'y'),
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'-n': (CONF_NFS, 'nfsd', 'tcp', '0'),
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'-s': (CONF_NFS, 'mountd', 'stat-directory-path', '$1'),
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'-t': (CONF_NFS, 'mountd', 'threads', '$1'),
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'-r': (CONF_NFS, 'mountd', 'reverse-lookup', '1'),
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'-u': (CONF_NFS, 'nfsd', 'udp', '0'),
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'--manage-gids': (CONF_NFS, 'mountd', 'manage-gids', '1'),
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'--descriptors': (CONF_NFS, 'mountd', 'descriptors', '$1'),
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'--debug': (CONF_NFS, 'mountd', 'debug', '$1'),
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'--ha-callout': (CONF_NFS, 'mountd', 'ha-callout', '$1'),
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'--port': (CONF_NFS, 'mountd', 'port', '$1'),
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'--nfs-version': (CONF_NFS, 'nfsd', 'vers$1', 'y'),
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'--no-nfs-version': (CONF_NFS, 'nfsd', 'vers$1', 'n'),
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'--no-tcp': (CONF_NFS, 'nfsd', 'tcp', '0'),
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'--state-directory-path': (CONF_NFS, 'mountd', 'state-directory-path', '$1'),
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'--num-threads': (CONF_NFS, 'mountd', 'threads', '$1'),
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'--reverse-lookup': (CONF_NFS, 'mountd', 'reverse-lookup', '1'),
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'--no-udp': (CONF_NFS, 'nfsd', 'udp', '0'),
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}
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# options for statd found in STATDARG
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OPTS_STATD = 'o:p:T:U:n:P:H:'
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LONG_STATD = ['outgoing-port=', 'port=', 'name=', 'state-directory-path=',
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'ha-callout=', 'nlm-port=', 'nlm-udp-port=']
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CONV_STATD = {'-o': (CONF_NFS, 'statd', 'outgoing-port', '$1'),
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'-p': (CONF_NFS, 'statd', 'port', '$1'),
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'-T': (CONF_NFS, 'lockd', 'port', '$1'),
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'-U': (CONF_NFS, 'lockd', 'udp-port', '$1'),
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'-n': (CONF_NFS, 'statd', 'name', '$1'),
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'-P': (CONF_NFS, 'statd', 'state-directory-path', '$1'),
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'-H': (CONF_NFS, 'statd', 'ha-callout', '$1'),
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'--outgoing-port': (CONF_NFS, 'statd', 'outgoing-port', '$1'),
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'--port': (CONF_NFS, 'statd', 'port', '$1'),
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'--name': (CONF_NFS, 'statd', 'name', '$1'),
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'--state-directory-path': (CONF_NFS, 'statd', 'state-directory-path', '$1'),
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'--ha-callout': (CONF_NFS, 'statd', 'ha-callout', '$1'),
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'--nlm-port': (CONF_NFS, 'lockd', 'port', '$1'),
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'--nlm-udp-port': (CONF_NFS, 'lockd', 'udp-port', '$1'),
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}
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# options for sm-notify found in SMNOTIFYARGS
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OPTS_SMNOTIFY = 'dm:np:v:P:'
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CONV_SMNOTIFY = {'-d': (CONF_NFS, 'sm-notify', 'debug', 'all'),
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'-m': (CONF_NFS, 'sm-notify', 'retry-time', '$1'),
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'-n': (CONF_NFS, 'sm-notify', 'update-state', '1'),
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'-p': (CONF_NFS, 'sm-notify', 'outgoing-port', '$1'),
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'-v': (CONF_NFS, 'sm-notify', 'outgoing-addr', '$1'),
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'-P': (CONF_NFS, 'statd', 'state-directory-path', '$1'),
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}
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# options for idmapd found in RPCIDMAPDARGS
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OPTS_IDMAPD = 'vp:CS'
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CONV_IDMAPD = {'-v': (CONF_IDMAP, 'general', 'verbosity', '+'),
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'-p': (CONF_NFS, 'general', 'pipefs-directory', '$1'),
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'-C': (CONF_IDMAP, 'general', 'client-only', '1'),
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'-S': (CONF_IDMAP, 'general', 'server-only', '1'),
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}
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# options for gssd found in RPCGSSDARGS
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OPTS_GSSD = 'Mnvrp:k:d:t:T:R:lD'
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CONV_GSSD = {'-M': (CONF_NFS, 'gssd', 'use-memcache', '1'),
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'-n': (CONF_NFS, 'gssd', 'root_uses_machine_creds', '0'),
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'-v': (CONF_NFS, 'gssd', 'verbosity', '+'),
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'-r': (CONF_NFS, 'gssd', 'rpc-verbosity', '+'),
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'-p': (CONF_NFS, 'general', 'pipefs-directory', '$1'),
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'-k': (CONF_NFS, 'gssd', 'keytab-file', '$1'),
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'-d': (CONF_NFS, 'gssd', 'cred-cache-directory', '$1'),
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'-t': (CONF_NFS, 'gssd', 'context-timeout', '$1'),
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'-T': (CONF_NFS, 'gssd', 'rpc-timeout', '$1'),
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'-R': (CONF_NFS, 'gssd', 'preferred-realm', '$1'),
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'-l': (CONF_NFS, 'gssd', 'limit-to-legacy-enctypes', '0'),
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'-D': (CONF_NFS, 'gssd', 'avoid-dns', '0'),
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}
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# options for blkmapd found in BLKMAPDARGS
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OPTS_BLKMAPD = ''
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CONV_BLKMAPD = {}
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# meta list of all the getopt lists
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GETOPT_MAPS = [('RPCNFSDARGS', OPTS_NFSD, LONG_NFSD, CONV_NFSD),
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('RPCMOUNTDOPTS', OPTS_MOUNTD, LONG_MOUNTD, CONV_MOUNTD),
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('STATDARG', OPTS_STATD, LONG_STATD, CONV_STATD),
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('STATDARGS', OPTS_STATD, LONG_STATD, CONV_STATD),
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('SMNOTIFYARGS', OPTS_SMNOTIFY, [], CONV_SMNOTIFY),
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('RPCIDMAPDARGS', OPTS_IDMAPD, [], CONV_IDMAPD),
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('RPCGSSDARGS', OPTS_GSSD, [], CONV_GSSD),
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('BLKMAPDARGS', OPTS_BLKMAPD, [], CONV_BLKMAPD),
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]
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# map for all of the single option values
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VALUE_MAPS = {'LOCKD_TCPPORT': (CONF_NFS, 'lockd', 'port', '$1'),
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'LOCKD_UDPPORT': (CONF_NFS, 'lockd', 'udp-port', '$1'),
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'RPCNFSDCOUNT': (CONF_NFS, 'nfsd', 'threads', '$1'),
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'NFSD_V4_GRACE': (CONF_NFS, 'nfsd', 'grace-time', '$1'),
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'NFSD_V4_LEASE': (CONF_NFS, 'nfsd', 'lease-time', '$1'),
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'MOUNTD_PORT': (CONF_NFS, 'mountd', 'port', '$1'),
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'STATD_PORT': (CONF_NFS, 'statd', 'port', '$1'),
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'STATD_OUTGOING_PORT': (CONF_NFS, 'statd', 'outgoing-port', '$1'),
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'STATD_HA_CALLOUT': (CONF_NFS, 'statd', 'ha-callout', '$1'),
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'GSS_USE_PROXY': (CONF_NFS, 'gssd', 'use-gss-proxy', '$1')
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}
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def eprint(*args, **kwargs):
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""" Print error to stderr """
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print(*args, file=sys.stderr, **kwargs)
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def makesub(param, value):
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""" Variable substitution """
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return param.replace('$1', value)
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def set_value(value, entry):
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""" Set a configuration value by running nfsconf tool"""
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cfile, section, tag, param = entry
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tag = makesub(tag, value)
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param = makesub(param, value)
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if param == '+':
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param = value
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if param == ',':
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param = value
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args = [CONF_TOOL, "--file", cfile, "--set", section, tag, param]
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try:
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subprocess.check_output(args, stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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print("Error running nfs-conf tool:\n %s" % (e.output.decode()))
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print("Args: %s\n" % args)
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raise Exception
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def convert_getopt(optname, options, optstring, longopts, conversions):
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""" Parse option string into seperate config items
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Take a getopt string and a table of conversions
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parse it all and spit out the converted config
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Keyword arguments:
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options -- the argv string to convert
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optstring -- getopt format option list
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conversions -- table of translations
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"""
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optcount = 0
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try:
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args = options.strip('\"').split()
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optlist, optargs = getopt.gnu_getopt(args, optstring, longopts=longopts)
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except getopt.GetoptError as err:
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eprint(err)
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raise Exception
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setlist = {}
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for (k, v) in optlist:
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if k in conversions:
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# it's already been set once
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param = conversions[k][3]
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tag = k + makesub(conversions[k][2], v)
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if tag in setlist:
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value = setlist[tag][0]
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# is it a cummulative entry
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if param == '+':
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value = str(int(value) + 1)
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if param == ',':
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value += "," + v
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else:
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if param == '+':
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value = "1"
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elif param == ',':
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value = v
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else:
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value = v
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setlist[tag] = (value, conversions[k])
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else:
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if v:
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eprint("Ignoring unrecognised option %s=%s in %s" % (k, v, optname))
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else:
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eprint("Ignoring unrecognised option %s in %s" % (k, optname))
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for v, c in setlist.values():
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try:
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set_value(v, c)
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optcount += 1
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except Exception:
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raise
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i = 1
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for o in optargs:
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opname = '$' + str(i)
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if opname in conversions:
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try:
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set_value(o, conversions[opname])
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optcount += 1
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except Exception:
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raise
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else:
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eprint("Unrecognised trailing arguments")
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raise Exception
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i += 1
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return optcount
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def map_values():
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""" Main function """
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mapcount = 0
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# Lets load the old config
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with open(SYSCONF_NFS) as cfile:
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file_content = '[sysconf]\n' + cfile.read()
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sysconfig = configparser.RawConfigParser()
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sysconfig.read_string(file_content)
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# Map all the getopt option lists
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for (name, opts, lopts, conv) in GETOPT_MAPS:
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if name in sysconfig['sysconf']:
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try:
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mapcount += convert_getopt(name, sysconfig['sysconf'][name], opts,
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lopts, conv)
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except Exception:
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eprint("Error whilst converting %s to nfsconf options." % (name))
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raise
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# Map the single value options
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for name, opts in VALUE_MAPS.items():
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if name in sysconfig['sysconf']:
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try:
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value = sysconfig['sysconf'][name]
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set_value(value.strip('\"'), opts)
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mapcount += 1
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except Exception:
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raise
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# All went well, move aside the old file
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# but dont bother if there were no changes and
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# an old config file already exists
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backupfile = SYSCONF_NFS + SYSCONF_BACKUP
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if mapcount > 0 or not os.path.exists(backupfile):
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try:
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os.replace(SYSCONF_NFS, backupfile)
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except OSError as err:
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eprint("Error moving old config %s: %s" % (SYSCONF_NFS, err))
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raise
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# Main routine
|
||
|
|
try:
|
||
|
|
map_values()
|
||
|
|
except Exception as e:
|
||
|
|
eprint(e)
|
||
|
|
eprint("Conversion failed. Please correct the error and try again.")
|
||
|
|
exit(1)
|