# Copyright (c) 2003-2004 James Troup <troup@debian.org>
# Copyright (c) 2004-2005,7 Joey Schulze <joey@infodrom.org>
# Copyright (c) 2001-2007 Ryan Murray <rmurray@debian.org>
+# 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>
#
# 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
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-import string, re, time, ldap, getopt, sys, os, pwd, posix, socket, base64, sha
+import string, re, time, ldap, getopt, sys, os, pwd, posix, socket, base64, sha, shutil, errno, tarfile, grp
from userdir_ldap import *;
global Allowed;
EmailCheck = re.compile("^([^ <>@]+@[^ ,<>@]+)?$");
BSMTPCheck = re.compile(".*mx 0 (gluck)\.debian\.org\..*",re.DOTALL);
DNSZone = ".debian.net"
+Keyrings = ConfModule.sync_keyrings.split(":")
+
+def safe_makedirs(dir):
+ try:
+ os.makedirs(dir)
+ except OSError, e:
+ if e.errno == errno.EEXIST:
+ pass
+ else:
+ raise e
+
+def safe_rmtree(dir):
+ try:
+ shutil.rmtree(dir)
+ except OSError, e:
+ if e.errno == errno.ENOENT:
+ pass
+ else:
+ raise e
def Sanitize(Str):
- return string.translate(Str,string.maketrans("\n\r\t","$$$"));
+ return Str.translate(string.maketrans("\n\r\t","$$$"))
def DoLink(From,To,File):
try: posix.remove(To+File);
os.rename(File + ".tdb.tmp",File+".tdb");
# Generate the password list
-def GenPasswd(l,File,HomePrefix):
+def GenPasswd(l,File,HomePrefix,PwdMarker):
F = None;
try:
F = open(File + ".tdb.tmp","w");
+ userlist = {}
# Fetch all the users
global PasswdAttrs;
if PasswdAttrs == None:
if len(GetAttr(x,"gecos")) > 100 or len(GetAttr(x,"loginShell")) > 50:
continue;
- Line = "%s:x:%s:%s:%s:%s%s:%s" % (GetAttr(x,"uid"),\
+ userlist[GetAttr(x, "uid")] = int(GetAttr(x, "gidNumber"))
+ Line = "%s:%s:%s:%s:%s:%s%s:%s" % (GetAttr(x,"uid"),\
+ PwdMarker,\
GetAttr(x,"uidNumber"),GetAttr(x,"gidNumber"),\
GetAttr(x,"gecos"),HomePrefix,GetAttr(x,"uid"),\
GetAttr(x,"loginShell"));
raise;
Done(File,None,F);
+ # Return the list of users so we know which keys to export
+ return userlist
+
# Generate the shadow list
def GenShadow(l,File):
F = None;
Pass = '*';
else:
Pass = Pass[7:];
+
+ # If the account is locked, mark it as such in shadow
+ # See Debian Bug #308229 for why we set it to 1 instead of 0
+ if (GetAttr(x,"userPassword").find("*LK*") != -1) \
+ or GetAttr(x,"userPassword").startswith("!"):
+ ShadowExpire = '1'
+ else:
+ ShadowExpire = GetAttr(x,"shadowExpire")
+
Line = "%s:%s:%s:%s:%s:%s:%s:%s:" % (GetAttr(x,"uid"),\
Pass,GetAttr(x,"shadowLastChange"),\
GetAttr(x,"shadowMin"),GetAttr(x,"shadowMax"),\
- GetAttr(x,"shadowWarning"),GetAttr(x,"shadowinactive"),\
- GetAttr(x,"shadowexpire"));
+ GetAttr(x,"shadowWarning"),GetAttr(x,"shadowInactive"),\
+ ShadowExpire);
Line = Sanitize(Line) + "\n";
F.write("0%u %s" % (I,Line));
F.write(".%s %s" % (GetAttr(x,"uid"),Line));
Done(File,None,F);
# Generate the shadow list
-def GenSSHShadow(l,File):
- F = None;
- try:
- OldMask = os.umask(0077);
- F = open(File + ".tmp","w",0600);
- os.umask(OldMask);
-
+def GenSSHShadow(l,masterFileName):
# 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'))
+
for x in PasswdAttrs:
# If the account is locked, do not write it.
# This is a partial stop-gap. The ssh also needs to change this
# to ignore ~/.ssh/authorized* files.
- if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1):
+ if (GetAttr(x,"userPassword").find("*LK*") != -1) \
+ or GetAttr(x,"userPassword").startswith("!"):
continue;
if x[1].has_key("uidNumber") == 0 or \
x[1].has_key("sshRSAAuthKey") == 0:
continue;
- for I in x[1]["sshRSAAuthKey"]:
- User = GetAttr(x,"uid");
- Line = "%s: %s" %(User,I);
- Line = Sanitize(Line) + "\n";
- F.write(Line);
- # Oops, something unspeakable happened.
- except:
- Die(File,F,None);
- raise;
- Done(File,F,None);
+ User = GetAttr(x,"uid");
+ 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);
+
+ 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))
+
+ # Oops, something unspeakable happened.
+ except IOError:
+ Die(File,F,None)
+ Die(masterFileName,masterFile,None)
+ raise;
+
+ if SingleSSHFile:
+ Done(masterFileName,masterFile,None)
+ singlefile = os.path.basename(masterFileName)
+
+ return singlefile, userfiles
# Generate the group list
def GenGroup(l,File):
+ grouprevmap = {}
F = None;
try:
F = open(File + ".tdb.tmp","w");
# Output the group file.
J = 0;
for x in GroupMap.keys():
+ grouprevmap[GroupIDMap[x]] = x
if GroupIDMap.has_key(x) == 0:
continue;
Line = "%s:x:%u:" % (x,GroupIDMap[x]);
raise;
Done(File,None,F);
+ return grouprevmap
+
# Generate the email forwarding list
def GenForward(l,File):
F = None;
continue;
# If the account is locked, do not write it
- if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1) \
- or (string.find(GetAttr(x,"userPassword"),"*PK*") != -1):
+ if (GetAttr(x,"userPassword").find("*LK*") != -1) \
+ or GetAttr(x,"userPassword").startswith("!"):
continue;
# If the account has no PGP key, do not write it
raise;
Done(File,F,None);
+# Generate a list of locked accounts
+def GenDisabledAccounts(l,File):
+ F = None;
+ try:
+ F = open(File + ".tmp","w");
+
+ # Fetch all the users
+ global PasswdAttrs;
+ if PasswdAttrs == None:
+ raise "No Users";
+
+ I = 0;
+ for x in PasswdAttrs:
+ if x[1].has_key("uidNumber") == 0:
+ continue;
+
+ Pass = GetAttr(x,"userPassword");
+ Line = ""
+ # *LK* is the reference value for a locked account
+ # password starting with ! is also a locked account
+ if Pass.find("*LK*") != -1 or Pass.startswith("!"):
+ # Format is <login>:<reason>
+ Line = "%s:%s" % (GetAttr(x,"uid"), "Account is locked")
+
+ if Line != "":
+ F.write(Sanitize(Line) + "\n")
+
+ # Oops, something unspeakable happened.
+ except:
+ Die(File,F,None);
+ raise;
+ Done(File,F,None);
+
# Generate the list of local addresses that refuse all mail
def GenMailDisable(l,File):
F = None;
for x in PasswdAttrs:
Reason = None
-
- # If the account is locked, disable incoming mail
- if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1):
- Reason = "user account locked"
+
+ if x[1].has_key("mailDisableMessage"):
+ Reason = GetAttr(x,"mailDisableMessage")
else:
- if x[1].has_key("mailDisableMessage"):
- Reason = GetAttr(x,"mailDisableMessage")
- else:
- continue
+ continue
# Must be in the Debian group (yuk, hard coded for now)
if GetAttr(x,"gidNumber") != "800":
try:
F.write("; %s\n"%(EmailAddress(x)));
for z in x[1]["dnsZoneEntry"]:
- Split = string.split(string.lower(z));
- if string.lower(Split[1]) == 'in':
+ Split = z.lower().split()
+ if Split[1].lower() == 'in':
for y in range(0,len(Split)):
if Split[y] == "$":
Split[y] = "\n\t";
- Line = string.join(Split," ") + "\n";
+ Line = " ".join(Split) + "\n";
F.write(Line);
Host = Split[0] + DNSZone;
F.write("; Has BSMTP\n");
# Write some identification information
- if string.lower(Split[2]) == "a":
+ if Split[2].lower() == "a":
Line = "%s IN TXT \"%s\"\n"%(Split[0],EmailAddress(x));
for y in x[1]["keyFingerPrint"]:
Line = Line + "%s IN TXT \"PGP %s\"\n"%(Split[0],FormatPGPKey(y));
Host = GetAttr(x,"hostname");
Algorithm = None
for I in x[1]["sshRSAHostKey"]:
- Split = string.split(I)
+ Split = I.split()
if Split[0] == 'ssh-rsa':
Algorithm = 1
if Split[0] == 'ssh-dss':
continue;
try:
for z in x[1]["dnsZoneEntry"]:
- Split = string.split(string.lower(z));
- if string.lower(Split[1]) == 'in':
+ Split = z.lower().split()
+ if Split[1].lower() == 'in':
for y in range(0,len(Split)):
if Split[y] == "$":
Split[y] = "\n\t";
- Line = string.join(Split," ") + "\n";
+ Line = " ".join(Split) + "\n";
Host = Split[0] + DNSZone;
if BSMTPCheck.match(Line) != None:
raise;
Done(File,F,None);
+# cache IP adresses
+HostToIPCache = {}
+def HostToIP(Host):
+ global HostToIPCache
+ if not Host in HostToIPCache:
+ IPAdressesT = None
+ try:
+ IPAdressesT = list(set([ (a[0],a[4][0]) for a in socket.getaddrinfo(Host, None)]))
+ 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]]
+ HostToIPCache[Host] = IPAdresses
+ return HostToIPCache[Host]
+
+
# Generate the ssh known hosts file
-def GenSSHKnown(l,File):
+def GenSSHKnown(l,File,mode=None):
F = None;
try:
OldMask = os.umask(0022);
x[1].has_key("sshRSAHostKey") == 0:
continue;
Host = GetAttr(x,"hostname");
- SHost = string.find(Host,".");
+ HostNames = [ Host ]
+ SHost = Host.find(".")
+ if SHost != None: HostNames += [Host[0:SHost]]
+
for I in x[1]["sshRSAHostKey"]:
- if SHost == None:
- Line = "%s,%s %s" %(Host,socket.gethostbyname(Host),I);
+ if mode and mode == 'authorized_keys':
+ #Line = 'command="rsync --server --sender -pr . /var/cache/userdir-ldap/hosts/%s",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,from="%s" %s' % (Host, ",".join(HNames + HostToIP(Host)), I)
+ Line = 'command="rsync --server --sender -pr . /var/cache/userdir-ldap/hosts/%s",no-port-forwarding,no-X11-forwarding,no-agent-forwarding %s' % (Host,I)
else:
- Line = "%s,%s,%s %s" %(Host,Host[0:SHost],socket.gethostbyname(Host),I);
+ Line = "%s %s" %(",".join(HostNames + HostToIP(Host)), I);
Line = Sanitize(Line) + "\n";
F.write(Line);
# Oops, something unspeakable happened.
raise;
Done(File,F,None);
+def GenKeyrings(l,OutDir):
+ for k in Keyrings:
+ shutil.copy(k, OutDir)
+
# Connect to the ldap server
l = ldap.open(LDAPServer);
F = open(PassDir+"/pass-"+pwd.getpwuid(os.getuid())[0],"r");
-Pass = string.split(string.strip(F.readline())," ");
+Pass = F.readline().strip().split(" ")
F.close();
l.simple_bind_s("uid="+Pass[0]+","+BaseDn,Pass[1]);
PasswdAttrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"uid=*",\
["uid","uidNumber","gidNumber","supplementaryGid",\
"gecos","loginShell","userPassword","shadowLastChange",\
- "shadowMin","shadowMax","shadowWarning","shadowinactive",
- "shadowexpire","emailForward","latitude","longitude",\
+ "shadowMin","shadowMax","shadowWarning","shadowInactive",
+ "shadowExpire","emailForward","latitude","longitude",\
"allowedHost","sshRSAAuthKey","dnsZoneEntry","cn","sn",\
"keyFingerPrint","privateSub","mailDisableMessage",\
"mailGreylisting","mailCallout","mailRBL","mailRHSBL",\
# Generate global things
GlobalDir = GenerateDir+"/";
-GenSSHShadow(l,GlobalDir+"ssh-rsa-shadow");
+SSHGlobal, SSHFiles = GenSSHShadow(l,GlobalDir+"ssh-rsa-shadow");
GenAllForward(l,GlobalDir+"mail-forward.cdb");
GenMarkers(l,GlobalDir+"markers");
GenPrivate(l,GlobalDir+"debian-private");
+GenDisabledAccounts(l,GlobalDir+"disabled-accounts");
GenSSHKnown(l,GlobalDir+"ssh_known_hosts");
+#GenSSHKnown(l,GlobalDir+"authorized_keys", 'authorized_keys');
GenHosts(l,GlobalDir+"debianhosts");
GenMailDisable(l,GlobalDir+"mail-disable");
GenMailBool(l,GlobalDir+"mail-greylist","mailGreylisting");
GenMailList(l,GlobalDir+"mail-rbl","mailRBL");
GenMailList(l,GlobalDir+"mail-rhsbl","mailRHSBL");
GenMailList(l,GlobalDir+"mail-whitelist","mailWhitelist");
+GenKeyrings(l,GlobalDir);
# Compatibility.
GenForward(l,GlobalDir+"forward-alias");
-
+
while(1):
Line = F.readline();
if Line == "":
break;
- Line = string.strip(Line);
+ Line = Line.strip()
if Line == "":
continue;
if Line[0] == '#':
continue;
- Split = string.split(Line," ");
+ Split = Line.split(" ")
OutDir = GenerateDir + '/' + Split[0] + '/';
try: os.mkdir(OutDir);
except: pass;
Allowed = None
CurrentHost = Split[0];
- DoLink(GlobalDir,OutDir,"ssh-rsa-shadow");
+ # 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")
sys.stdout.flush();
- GenPasswd(l,OutDir+"passwd",Split[1]);
+ if ExtraList.has_key("[NOPASSWD]"):
+ userlist = GenPasswd(l,OutDir+"passwd",Split[1], "*");
+ else:
+ userlist = GenPasswd(l,OutDir+"passwd",Split[1], "x");
sys.stdout.flush();
- GenGroup(l,OutDir+"group");
+ grouprevmap = GenGroup(l,OutDir+"group");
+
+ # 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'))
+
if ExtraList.has_key("[UNTRUSTED]"):
- continue;
- GenShadow(l,OutDir+"shadow");
-
+ continue;
+ if not ExtraList.has_key("[NOPASSWD]"):
+ GenShadow(l,OutDir+"shadow");
+
# Link in global things
DoLink(GlobalDir,OutDir,"markers");
DoLink(GlobalDir,OutDir,"mail-forward.cdb");
if ExtraList.has_key("[PRIVATE]"):
DoLink(GlobalDir,OutDir,"debian-private")
+
+ if ExtraList.has_key("[KEYRING]"):
+ for k in Keyrings:
+ DoLink(GlobalDir,OutDir,os.path.basename(k))
+ else:
+ for k in Keyrings:
+ try: posix.remove(OutDir+os.path.basename(k));
+ except: pass;
projects / mirror / userdir-ldap.git / blobdiff