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