# Copyright (c) 2008 Peter Palfrader <peter@palfrader.org>
# Copyright (c) 2008 Andreas Barth <aba@not.so.argh.org>
# Copyright (c) 2008 Mark Hymers <mhy@debian.org>
+# Copyright (c) 2008 Luk Claes <luk@debian.org>
+# Copyright (c) 2008 Thomas Viehmann <tv@beamnet.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
PasswdAttrs = None;
GroupIDMap = {};
+SubGroupMap = {};
Allowed = None;
CurrentHost = "";
EmailCheck = re.compile("^([^ <>@]+@[^ ,<>@]+)?$");
BSMTPCheck = re.compile(".*mx 0 (gluck)\.debian\.org\..*",re.DOTALL);
+PurposeHostField = re.compile(r"\[\[([\*\-]?[a-z0-9.\-]*)(?:\|.*)?\]\]")
DNSZone = ".debian.net"
Keyrings = ConfModule.sync_keyrings.split(":")
if DnRecord[1].has_key("supplementaryGid") == 0:
return 0;
- # Check the supplementary groups
- for I in DnRecord[1]["supplementaryGid"]:
- if Allowed.has_key(I):
+ supgroups=[]
+ addGroups(supgroups, DnRecord[1]["supplementaryGid"], GetAttr(DnRecord,"uid"))
+ for g in supgroups:
+ if Allowed.has_key(g):
return 1;
return 0;
Done(File,F,None);
# Generate the shadow list
-def GenSSHShadow(l,masterFileName):
+def GenSSHShadow(l):
# Fetch all the users
singlefile = None
userfiles = []
- # Depending on config, we write out either a single file,
- # multiple files, or both
- if SingleSSHFile:
- try:
- OldMask = os.umask(0077);
- masterFile = open(masterFileName + ".tmp","w",0600);
- os.umask(OldMask);
- except IOError:
- Die(masterFileName,masterFile,None)
- raise
global PasswdAttrs;
if PasswdAttrs == None:
raise "No Users";
- # If we're going to be dealing with multiple keys, empty the
- # directory before we start to avoid old keys hanging around
- if MultipleSSHFiles:
- safe_rmtree(os.path.join(GlobalDir, 'userkeys'))
- safe_makedirs(os.path.join(GlobalDir, 'userkeys'))
+ safe_rmtree(os.path.join(GlobalDir, 'userkeys'))
+ safe_makedirs(os.path.join(GlobalDir, 'userkeys'))
for x in PasswdAttrs:
# If the account is locked, do not write it.
F = None;
try:
- if MultipleSSHFiles:
- OldMask = os.umask(0077);
- File = os.path.join(GlobalDir, 'userkeys', User)
- F = open(File + ".tmp","w",0600);
- os.umask(OldMask);
+ OldMask = os.umask(0077);
+ File = os.path.join(GlobalDir, 'userkeys', User)
+ F = open(File + ".tmp","w",0600);
+ os.umask(OldMask);
for I in x[1]["sshRSAAuthKey"]:
- if MultipleSSHFiles:
- MultipleLine = "%s" % I
- MultipleLine = Sanitize(MultipleLine) + "\n"
- F.write(MultipleLine)
- if SingleSSHFile:
- SingleLine = "%s: %s" % (User, I)
- SingleLine = Sanitize(SingleLine) + "\n"
- masterFile.write(SingleLine)
-
- if MultipleSSHFiles:
- Done(File,F,None);
- userfiles.append(os.path.basename(File))
+ MultipleLine = "%s" % I
+ MultipleLine = Sanitize(MultipleLine) + "\n"
+ F.write(MultipleLine)
+
+ Done(File,F,None);
+ userfiles.append(os.path.basename(File))
# Oops, something unspeakable happened.
except IOError:
Die(masterFileName,masterFile,None)
raise;
- if SingleSSHFile:
- Done(masterFileName,masterFile,None)
- singlefile = os.path.basename(masterFileName)
+ return userfiles
+
+def GenSSHtarballs(userlist, SSHFiles, grouprevmap, target):
+ OldMask = os.umask(0077);
+ tf = tarfile.open(name=os.path.join(GlobalDir, 'ssh-keys-%s.tar.gz' % CurrentHost), mode='w:gz')
+ os.umask(OldMask);
+ for f in userlist.keys():
+ if f not in SSHFiles:
+ continue
+ # If we're not exporting their primary group, don't export
+ # the key and warn
+ grname = None
+ if userlist[f] in grouprevmap.keys():
+ grname = grouprevmap[userlist[f]]
+ else:
+ try:
+ if int(userlist[f]) <= 100:
+ # In these cases, look it up in the normal way so we
+ # deal with cases where, for instance, users are in group
+ # users as their primary group.
+ grname = grp.getgrgid(userlist[f])[0]
+ except Exception, e:
+ pass
+
+ if grname is None:
+ print "User %s is supposed to have their key exported to host %s but their primary group (gid: %d) isn't in LDAP" % (f, CurrentHost, userlist[f])
+ continue
+
+ to = tf.gettarinfo(os.path.join(GlobalDir, 'userkeys', f), f)
+ # These will only be used where the username doesn't
+ # exist on the target system for some reason; hence,
+ # in those cases, the safest thing is for the file to
+ # be owned by root but group nobody. This deals with
+ # the bloody obscure case where the group fails to exist
+ # whilst the user does (in which case we want to avoid
+ # ending up with a file which is owned user:root to avoid
+ # a fairly obvious attack vector)
+ to.uid = 0
+ to.gid = 65534
+ # Using the username / groupname fields avoids any need
+ # to give a shit^W^W^Wcare about the UIDoffset stuff.
+ to.uname = f
+ to.gname = grname
+ to.mode = 0400
+ tf.addfile(to, file(os.path.join(GlobalDir, 'userkeys', f)))
+
+ tf.close()
+ os.rename(os.path.join(GlobalDir, 'ssh-keys-%s.tar.gz' % CurrentHost), target)
+
+# add a list of groups to existing groups,
+# including all subgroups thereof, recursively.
+# basically this proceduces the transitive hull of the groups in
+# addgroups.
+def addGroups(existingGroups, newGroups, uid):
+ for group in newGroups:
+ # if it's a <group>@host, split it and verify it's on the current host.
+ s = group.split('@', 1)
+ if len(s) == 2 and s[1] != CurrentHost:
+ continue;
+ group = s[0]
+
+ # let's see if we handled this group already
+ if group in existingGroups:
+ continue
+
+ if not GroupIDMap.has_key(group):
+ print "Group", group, "does not exist but", uid, "is in it"
+ continue
+
+ existingGroups.append(group)
- return singlefile, userfiles
+ if SubGroupMap.has_key(group):
+ addGroups(existingGroups, SubGroupMap[group], uid)
# Generate the group list
def GenGroup(l,File):
# Sort them into a list of groups having a set of users
for x in PasswdAttrs:
+ uid = GetAttr(x,"uid")
if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
continue;
if x[1].has_key("supplementaryGid") == 0:
continue;
- for I in x[1]["supplementaryGid"]:
- if GroupMap.has_key(I):
- GroupMap[I].append(GetAttr(x,"uid"));
- else:
- print "Group does not exist ",I,"but",GetAttr(x,"uid"),"is in it";
+ supgroups=[]
+ addGroups(supgroups, x[1]["supplementaryGid"], uid)
+ for g in supgroups:
+ GroupMap[g].append(uid);
# Output the group file.
J = 0;
raise;
Done(File,F,None);
+def isRoleAccount(pwEntry):
+ if not pwEntry.has_key("objectClass"):
+ raise "pwEntry has no objectClass"
+ oc = pwEntry['objectClass']
+ try:
+ i = oc.index('debianRoleAccount')
+ return True
+ except ValueError:
+ return False
+
# Generate the DNS Zone file
def GenDNS(l,File,HomePrefix):
F = None;
continue;
# If the account has no PGP key, do not write it
- if x[1].has_key("keyFingerPrint") == 0:
+ if x[1].has_key("keyFingerPrint") == 0 and not isRoleAccount(x[1]):
continue;
try:
F.write("; %s\n"%(EmailAddress(x)));
except socket.gaierror, (code):
if code[0] != -2: raise
IPAdresses = []
- for addr in IPAdressesT:
- if addr[0] == socket.AF_INET: IPAdresses += [addr[1], "::ffff:"+addr[1]]
- else: IPAdresses += [addr[1]]
+ if not IPAdressesT is None:
+ for addr in IPAdressesT:
+ if addr[0] == socket.AF_INET: IPAdresses += [addr[1], "::ffff:"+addr[1]]
+ else: IPAdresses += [addr[1]]
HostToIPCache[Host] = IPAdresses
return HostToIPCache[Host]
continue;
Host = GetAttr(x,"hostname");
HostNames = [ Host ]
- SHost = Host.find(".")
- if SHost != None: HostNames += [Host[0:SHost]]
+ if Host.endswith(HostDomain):
+ HostNames.append(Host[:-(len(HostDomain)+1)])
+
+ # in the purpose field [[host|some other text]] (where some other text is optional)
+ # makes a hyperlink on the web thing. we now also add these hosts to the ssh known_hosts
+ # file. But so that we don't have to add everything we link we can add an asterisk
+ # and say [[*... to ignore it. In order to be able to add stuff to ssh without
+ # http linking it we also support [[-hostname]] entries.
+ for i in x[1].get("purpose",[]):
+ m = PurposeHostField.match(i)
+ if m:
+ m = m.group(1)
+ # we ignore [[*..]] entries
+ if m.startswith('*'):
+ continue;
+ if m.startswith('-'):
+ m = m[1:]
+ if m:
+ HostNames.append(m)
+ if m.endswith(HostDomain):
+ HostNames.append(m[:-(len(HostDomain)+1)])
for I in x[1]["sshRSAHostKey"]:
if mode and mode == 'authorized_keys':
# Generate the debianhosts file (list of all IP addresses)
def GenHosts(l,File):
- F = None;
+ F = None
try:
- OldMask = os.umask(0022);
- F = open(File + ".tmp","w",0644);
- os.umask(OldMask);
-
- # Fetch all the hosts
- HostNames = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"hostname=*",\
- ["hostname"]);
-
- if HostNames == None:
- raise "No Hosts";
-
- for x in HostNames:
- if x[1].has_key("hostname") == 0:
- continue;
- Host = GetAttr(x,"hostname");
- try:
- Addr = socket.gethostbyname(Host);
- F.write(Addr + "\n");
- except:
- pass
+ OldMask = os.umask(0022)
+ F = open(File + ".tmp","w",0644)
+ os.umask(OldMask)
+
+ # Fetch all the hosts
+ hostnames = l.search_s(HostBaseDn, ldap.SCOPE_ONELEVEL, "hostname=*",
+ ["hostname"])
+
+ if hostnames == None:
+ raise "No Hosts"
+
+ seen = set()
+ for x in hostnames:
+ host = GetAttr(x,"hostname", None)
+ if host:
+ addrs = []
+ try:
+ addrs += socket.getaddrinfo(host, None, socket.AF_INET)
+ except socket.error:
+ pass
+ try:
+ addrs += socket.getaddrinfo(host, None, socket.AF_INET6)
+ except socket.error:
+ pass
+
+ for addrinfo in addrs:
+ if addrinfo[0] in (socket.AF_INET, socket.AF_INET6):
+ addr = addrinfo[4][0]
+ if addr not in seen:
+ print >> F, addrinfo[4][0]
+ seen.add(addr)
# Oops, something unspeakable happened.
except:
- Die(File,F,None);
- raise;
- Done(File,F,None);
+ Die(File,F,None)
+ raise
+ Done(File,F,None)
def GenKeyrings(l,OutDir):
for k in Keyrings:
shutil.copy(k, OutDir)
+
# Connect to the ldap server
l = connectLDAP()
F = open(PassDir+"/pass-"+pwd.getpwuid(os.getuid())[0],"r");
# Fetch all the groups
GroupIDMap = {};
Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"gid=*",\
- ["gid","gidNumber"]);
+ ["gid","gidNumber","subGroup"]);
-# Generate the GroupMap and GroupIDMap
+# Generate the SubGroupMap and GroupIDMap
for x in Attrs:
if x[1].has_key("gidNumber") == 0:
continue;
GroupIDMap[x[1]["gid"][0]] = int(x[1]["gidNumber"][0]);
+ if x[1].has_key("subGroup") != 0:
+ SubGroupMap.setdefault(x[1]["gid"][0], []).extend(x[1]["subGroup"]);
# Fetch all the users
PasswdAttrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"uid=*",\
"allowedHost","sshRSAAuthKey","dnsZoneEntry","cn","sn",\
"keyFingerPrint","privateSub","mailDisableMessage",\
"mailGreylisting","mailCallout","mailRBL","mailRHSBL",\
- "mailWhitelist", "sudoPassword"]);
+ "mailWhitelist", "sudoPassword", "objectClass"]);
# Fetch all the hosts
HostAttrs = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"sshRSAHostKey=*",\
- ["hostname","sshRSAHostKey"]);
+ ["hostname","sshRSAHostKey","purpose"]);
# Open the control file
if len(sys.argv) == 1:
# Generate global things
GlobalDir = GenerateDir+"/";
-SSHGlobal, SSHFiles = GenSSHShadow(l,GlobalDir+"ssh-rsa-shadow");
+SSHFiles = GenSSHShadow(l);
GenAllForward(l,GlobalDir+"mail-forward.cdb");
GenMarkers(l,GlobalDir+"markers");
GenPrivate(l,GlobalDir+"debian-private");
Allowed = None
CurrentHost = Split[0];
- # If we're using a single SSH file, deal with it
- if SSHGlobal is not None:
- DoLink(GlobalDir, OutDir, SSHGlobal)
-
DoLink(GlobalDir,OutDir,"debianhosts");
DoLink(GlobalDir,OutDir,"ssh_known_hosts");
DoLink(GlobalDir,OutDir,"disabled-accounts")
# Now we know who we're allowing on the machine, export
# the relevant ssh keys
- if MultipleSSHFiles:
- OldMask = os.umask(0077);
- tf = tarfile.open(name=os.path.join(GlobalDir, 'ssh-keys-%s.tar.gz' % CurrentHost), mode='w:gz')
- os.umask(OldMask);
- for f in userlist.keys():
- if f not in SSHFiles:
- continue
- # If we're not exporting their primary group, don't export
- # the key and warn
- grname = None
- if userlist[f] in grouprevmap.keys():
- grname = grouprevmap[userlist[f]]
- else:
- try:
- if int(userlist[f]) <= 100:
- # In these cases, look it up in the normal way so we
- # deal with cases where, for instance, users are in group
- # users as their primary group.
- grname = grp.getgrgid(userlist[f])[0]
- except Exception, e:
- pass
-
- if grname is None:
- print "User %s is supposed to have their key exported to host %s but their primary group (gid: %d) isn't in LDAP" % (f, CurrentHost, userlist[f])
- continue
-
- to = tf.gettarinfo(os.path.join(GlobalDir, 'userkeys', f), f)
- # These will only be used where the username doesn't
- # exist on the target system for some reason; hence,
- # in those cases, the safest thing is for the file to
- # be owned by root but group nobody. This deals with
- # the bloody obscure case where the group fails to exist
- # whilst the user does (in which case we want to avoid
- # ending up with a file which is owned user:root to avoid
- # a fairly obvious attack vector)
- to.uid = 0
- to.gid = 65534
- # Using the username / groupname fields avoids any need
- # to give a shit^W^W^Wcare about the UIDoffset stuff.
- to.uname = f
- to.gname = grname
- to.mode = 0400
- tf.addfile(to, file(os.path.join(GlobalDir, 'userkeys', f)))
-
- tf.close()
- os.rename(os.path.join(GlobalDir, 'ssh-keys-%s.tar.gz' % CurrentHost),
- os.path.join(OutDir, 'ssh-keys.tar.gz'))
+ GenSSHtarballs(userlist, SSHFiles, grouprevmap, os.path.join(OutDir, 'ssh-keys.tar.gz'))
if ExtraList.has_key("[UNTRUSTED]"):
print "[UNTRUSTED] tag is obsolete and may be removed in the future."
projects / mirror / userdir-ldap.git / blobdiff