Change the hmac that protect sudopassword entries to also hash the purpose
[mirror/userdir-ldap.git] / ud-generate
index 1782f09..1a3d3f6 100755 (executable)
@@ -110,7 +110,7 @@ def Done(File,F,Fdb):
   if Fdb != None:
     Fdb.close();
     os.rename(File + ".tdb.tmp",File+".tdb");
-  
+
 # Generate the password list
 def GenPasswd(l,File,HomePrefix,PwdMarker):
   F = None;
@@ -171,7 +171,7 @@ def GenShadow(l,File):
    for x in PasswdAttrs:
       if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
          continue;
-        
+
       Pass = GetAttr(x,"userPassword");
       if Pass[0:7] != "{crypt}" or len(Pass) > 50:
          Pass = '*';
@@ -203,7 +203,7 @@ def GenShadow(l,File):
   Done(File,None,F);
 
 # Generate the sudo passwd file
-def GenShadowSudo(l,File):
+def GenShadowSudo(l,File, untrusted):
   F = None;
   try:
    OldMask = os.umask(0077);
@@ -216,34 +216,34 @@ def GenShadowSudo(l,File):
       raise "No Users";
 
    for x in PasswdAttrs:
+      Pass = '*'
       if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
          continue;
-      if not x[1].has_key('sudoPassword'):
-         continue
 
-      Pass = None
-      for entry in x[1]['sudoPassword']:
-         Match = re.compile('^('+UUID_FORMAT+') (confirmed:[0-9a-f]{40}|unconfirmed) ([a-z0-9.,*]+) ([^ ]+)$').match(entry.lower())
-         if Match == None:
-            continue
-         uuid = Match.group(1)
-         status = Match.group(2)
-         hosts = Match.group(3)
-         cryptedpass = Match.group(4)
-
-         if status != 'confirmed:'+make_sudopasswd_hmac('password-is-confirmed', uuid, hosts, cryptedpass):
-            continue
-         for_all = hosts == "*"
-         for_this_host = CurrentHost in hosts.split(',')
-         if not (for_all or for_this_host):
-            continue
-         Pass = cryptedpass
-         if for_this_host: # this makes sure we take a per-host entry over the for-all entry
-           break
-      if not Pass:
-         continue
-      if len(Pass) > 50:
-         continue
+      if x[1].has_key('sudoPassword'):
+         for entry in x[1]['sudoPassword']:
+            Match = re.compile('^('+UUID_FORMAT+') (confirmed:[0-9a-f]{40}|unconfirmed) ([a-z0-9.,*]+) ([^ ]+)$').match(entry)
+            if Match == None:
+               continue
+            uuid = Match.group(1)
+            status = Match.group(2)
+            hosts = Match.group(3)
+            cryptedpass = Match.group(4)
+
+            if status != 'confirmed:'+make_passwd_hmac('password-is-confirmed', 'sudo', x[1]['uid'][0], uuid, hosts, cryptedpass):
+               continue
+            for_all = hosts == "*"
+            for_this_host = CurrentHost in hosts.split(',')
+            if not (for_all or for_this_host):
+               continue
+            # ignore * passwords for untrusted hosts, but copy host specific passwords
+            if for_all and untrusted:
+               continue
+            Pass = cryptedpass
+            if for_this_host: # this makes sure we take a per-host entry over the for-all entry
+              break
+         if len(Pass) > 50:
+            Pass = '*'
 
       Line = "%s:%s" % (GetAttr(x,"uid"), Pass)
       Line = Sanitize(Line) + "\n";
@@ -280,7 +280,7 @@ def GenSSHShadow(l,masterFileName):
    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
@@ -339,7 +339,7 @@ def GenGroup(l,File):
    GroupMap = {};
    for x in GroupIDMap.keys():
       GroupMap[x] = [];
-      
+
    # Fetch all the users
    global PasswdAttrs;
    if PasswdAttrs == None:
@@ -351,13 +351,13 @@ def GenGroup(l,File):
          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:
+            GroupMap[I].append(GetAttr(x,"uid"));
+         else:
             print "Group does not exist ",I,"but",GetAttr(x,"uid"),"is in it";
-           
+
    # Output the group file.
    J = 0;
    for x in GroupMap.keys():
@@ -374,7 +374,7 @@ def GenGroup(l,File):
       F.write(".%s %s" % (x,Line));
       F.write("=%u %s" % (GroupIDMap[x],Line));
       J = J + 1;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,None,F);
@@ -400,7 +400,7 @@ def GenForward(l,File):
    for x in PasswdAttrs:
       if x[1].has_key("emailForward") == 0 or IsInGroup(x) == 0:
          continue;
-      
+
       # Do not allow people to try to buffer overflow busted parsers
       if len(GetAttr(x,"emailForward")) > 200:
          continue;
@@ -411,7 +411,7 @@ def GenForward(l,File):
       Line = "%s: %s" % (GetAttr(x,"uid"),GetAttr(x,"emailForward"));
       Line = Sanitize(Line) + "\n";
       F.write(Line);
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -434,7 +434,7 @@ def GenAllForward(l,File):
    for x in PasswdAttrs:
       if x[1].has_key("emailForward") == 0:
          continue;
-      
+
       # Do not allow people to try to buffer overflow busted parsers
       Forward = GetAttr(x,"emailForward");
       if len(Forward) > 200:
@@ -443,7 +443,7 @@ def GenAllForward(l,File):
       # Check the forwarding address
       if EmailCheck.match(Forward) == None:
          continue;
-        
+
       User = GetAttr(x,"uid");
       Fdb.write("+%d,%d:%s->%s\n"%(len(User),len(Forward),User,Forward));
    Fdb.write("\n");
@@ -454,7 +454,7 @@ def GenAllForward(l,File):
   if Fdb.close() != None:
     raise "cdbmake gave an error";
 
-# Generate the anon XEarth marker file 
+# Generate the anon XEarth marker file
 def GenMarkers(l,File):
   F = None;
   try:
@@ -468,14 +468,14 @@ def GenMarkers(l,File):
    # Write out the position for each user
    for x in PasswdAttrs:
       if x[1].has_key("latitude") == 0 or x[1].has_key("longitude") == 0:
-         continue;      
+         continue;
       try:
          Line = "%8s %8s \"\""%(DecDegree(GetAttr(x,"latitude"),1),DecDegree(GetAttr(x,"longitude"),1));
          Line = Sanitize(Line) + "\n";
          F.write(Line);
       except:
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -509,7 +509,7 @@ def GenPrivate(l,File):
 
       # Must be in the Debian group (yuk, hard coded for now)
       if GetAttr(x,"gidNumber") != "800":
-        continue;
+         continue;
 
       try:
          Line = "%s"%(GetAttr(x,"privateSub"));
@@ -517,7 +517,7 @@ def GenPrivate(l,File):
          F.write(Line);
       except:
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -539,17 +539,17 @@ def GenDisabledAccounts(l,File):
    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")
+         # Format is <login>:<reason>
+         Line = "%s:%s" % (GetAttr(x,"uid"), "Account is locked")
 
       if Line != "":
-        F.write(Sanitize(Line) + "\n")
+         F.write(Sanitize(Line) + "\n")
 
   # Oops, something unspeakable happened.
   except:
@@ -578,7 +578,7 @@ def GenMailDisable(l,File):
 
       # Must be in the Debian group (yuk, hard coded for now)
       if GetAttr(x,"gidNumber") != "800":
-        continue;
+         continue;
 
       try:
          Line = "%s: %s"%(GetAttr(x,"uid"),Reason);
@@ -586,7 +586,7 @@ def GenMailDisable(l,File):
          F.write(Line);
       except:
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -606,13 +606,13 @@ def GenMailBool(l,File,Key):
 
    for x in PasswdAttrs:
       Reason = None
-      
+
       if x[1].has_key(Key) == 0:
          continue
 
       # Must be in the Debian group (yuk, hard coded for now)
       if GetAttr(x,"gidNumber") != "800":
-        continue
+         continue
 
       if GetAttr(x,Key) != "TRUE":
          continue
@@ -623,7 +623,7 @@ def GenMailBool(l,File,Key):
          F.write(Line);
       except:
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -643,24 +643,24 @@ def GenMailList(l,File,Key):
 
    for x in PasswdAttrs:
       Reason = None
-      
+
       if x[1].has_key(Key) == 0:
          continue
 
       # Must be in the Debian group (yuk, hard coded for now)
       if GetAttr(x,"gidNumber") != "800":
-        continue
+         continue
 
       try:
          found = 0
          Line = None
          for z in x[1][Key]:
              if Key == "mailWhitelist":
-                if re.match('^[-\w.]+(/[\d]+)?$',z) == None:
-                    continue
-            else:
-                if re.match('^[-\w.]+$',z) == None:
-                    continue
+                 if re.match('^[-\w.]+(/[\d]+)?$',z) == None:
+                     continue
+             else:
+                 if re.match('^[-\w.]+$',z) == None:
+                     continue
              if found == 0:
                  found = 1
                  Line = GetAttr(x,"uid")
@@ -675,7 +675,7 @@ def GenMailList(l,File,Key):
              F.write(Line);
       except:
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -687,7 +687,7 @@ def GenDNS(l,File,HomePrefix):
   F = None;
   try:
    F = open(File + ".tmp","w");
-   
+
    # Fetch all the users
    global PasswdAttrs;
    if PasswdAttrs == None:
@@ -705,32 +705,32 @@ def GenDNS(l,File,HomePrefix):
          F.write("; %s\n"%(EmailAddress(x)));
          for z in x[1]["dnsZoneEntry"]:
             Split = z.lower().split()
-           if Split[1].lower() == 'in':
+            if Split[1].lower() == 'in':
                for y in range(0,len(Split)):
                   if Split[y] == "$":
                      Split[y] = "\n\t";
                Line = " ".join(Split) + "\n";
                F.write(Line);
-              
-              Host = Split[0] + DNSZone;
-              if BSMTPCheck.match(Line) != None:
-                  F.write("; Has BSMTP\n");
-                              
-              # Write some identification information
+
+               Host = Split[0] + DNSZone;
+               if BSMTPCheck.match(Line) != None:
+                   F.write("; Has BSMTP\n");
+
+               # Write some identification information
                if Split[2].lower() == "a":
-                 Line = "%s IN TXT \"%s\"\n"%(Split[0],EmailAddress(x));
+                  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));
+                     Line = Line + "%s IN TXT \"PGP %s\"\n"%(Split[0],FormatPGPKey(y));
                   F.write(Line);
-           else:
+            else:
                Line = "; Err %s"%(str(Split));
                F.write(Line);
 
          F.write("\n");
       except:
-        F.write("; Errors\n");
+         F.write("; Errors\n");
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -742,7 +742,7 @@ def GenSSHFP(l,File,HomePrefix):
   F = None
   try:
    F = open(File + ".tmp","w")
-   
+
    # Fetch all the hosts
    global HostAttrs
    if HostAttrs == None:
@@ -777,7 +777,7 @@ def GenBSMTP(l,File,HomePrefix):
   F = None;
   try:
    F = open(File + ".tmp","w");
-   
+
    # Fetch all the users
    global PasswdAttrs;
    if PasswdAttrs == None:
@@ -794,21 +794,21 @@ def GenBSMTP(l,File,HomePrefix):
       try:
          for z in x[1]["dnsZoneEntry"]:
             Split = z.lower().split()
-           if Split[1].lower() == 'in':
+            if Split[1].lower() == 'in':
                for y in range(0,len(Split)):
                   if Split[y] == "$":
                      Split[y] = "\n\t";
                Line = " ".join(Split) + "\n";
-              
-              Host = Split[0] + DNSZone;
-              if BSMTPCheck.match(Line) != None:
-                  F.write("%s: user=%s group=Debian file=%s%s/bsmtp/%s\n"%(Host,
-                              GetAttr(x,"uid"),HomePrefix,GetAttr(x,"uid"),Host));
-                              
+
+               Host = Split[0] + DNSZone;
+               if BSMTPCheck.match(Line) != None:
+                   F.write("%s: user=%s group=Debian file=%s%s/bsmtp/%s\n"%(Host,
+                               GetAttr(x,"uid"),HomePrefix,GetAttr(x,"uid"),Host));
+
       except:
-        F.write("; Errors\n");
+         F.write("; Errors\n");
          pass;
-      
+
   # Oops, something unspeakable happened.
   except:
    Die(File,F,None);
@@ -844,7 +844,7 @@ def GenSSHKnown(l,File,mode=None):
    global HostAttrs
    if HostAttrs == None:
       raise "No Hosts";
-   
+
    for x in HostAttrs:
       if x[1].has_key("hostname") == 0 or \
          x[1].has_key("sshRSAHostKey") == 0:
@@ -879,7 +879,7 @@ def GenHosts(l,File):
    # Fetch all the hosts
    HostNames = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"hostname=*",\
                 ["hostname"]);
-   
+
    if HostNames == None:
       raise "No Hosts";
 
@@ -925,9 +925,9 @@ 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",\
+                 "shadowExpire","emailForward","latitude","longitude",\
                  "allowedHost","sshRSAAuthKey","dnsZoneEntry","cn","sn",\
-                "keyFingerPrint","privateSub","mailDisableMessage",\
+                 "keyFingerPrint","privateSub","mailDisableMessage",\
                  "mailGreylisting","mailCallout","mailRBL","mailRHSBL",\
                  "mailWhitelist", "sudoPassword"]);
 # Fetch all the hosts
@@ -1007,7 +1007,7 @@ while(1):
       userlist = GenPasswd(l,OutDir+"passwd",Split[1], "x");
    sys.stdout.flush();
    grouprevmap = GenGroup(l,OutDir+"group");
-   GenShadowSudo(l, OutDir+"sudo-passwd")
+   GenShadowSudo(l, OutDir+"sudo-passwd", ExtraList.has_key("[UNTRUSTED]") or ExtraList.has_key("[NOPASSWD]"))
 
    # Now we know who we're allowing on the machine, export
    # the relevant ssh keys
@@ -1018,7 +1018,7 @@ while(1):
       for f in userlist.keys():
         if f not in SSHFiles:
             continue
-        # If we're not exporting their primary group, don't export 
+        # If we're not exporting their primary group, don't export
         # the key and warn
         grname = None
         if userlist[f] in grouprevmap.keys():
@@ -1060,12 +1060,14 @@ while(1):
                 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."
      continue;
    if not ExtraList.has_key("[NOPASSWD]"):
      GenShadow(l,OutDir+"shadow");
 
-   # Link in global things   
-   DoLink(GlobalDir,OutDir,"markers");
+   # Link in global things
+   if not ExtraList.has_key("[NOMARKERS]"):
+     DoLink(GlobalDir,OutDir,"markers");
    DoLink(GlobalDir,OutDir,"mail-forward.cdb");
    DoLink(GlobalDir,OutDir,"mail-disable");
    DoLink(GlobalDir,OutDir,"mail-greylist");
@@ -1080,7 +1082,7 @@ while(1):
    if ExtraList.has_key("[DNS]"):
       GenDNS(l,OutDir+"dns-zone",Split[1]);
       GenSSHFP(l,OutDir+"dns-sshfp",Split[1])
-      
+
    if ExtraList.has_key("[BSMTP]"):
       GenBSMTP(l,OutDir+"bsmtp",Split[1])
 
@@ -1094,3 +1096,7 @@ while(1):
      for k in Keyrings:
        try: posix.remove(OutDir+os.path.basename(k));
        except: pass;
+
+# vim:set et:
+# vim:set ts=3:
+# vim:set shiftwidth=3: