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authorSamba Release Account <samba-bugs@samba.org>1996-07-10 18:48:49 +0000
committerSamba Release Account <samba-bugs@samba.org>1996-07-10 18:48:49 +0000
commite5a0619c2839d45b00446c3af3f30599f3f3c5fa (patch)
treee4f788fae8109e372f55ecc53a40a19740655cc8 /source3/nameservreply.doc
parent9d59ce1d5715f64105643b01aea8b5b9cba8d5a2 (diff)
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updated docs to match code mods from last two or three updates. done
some more commenting of code to match docs. sorted some bugs. ipc BOOL domains was uninitialised. lkcl (This used to be commit cb43ce7bc08fa43a6ce49e0937f13afec5dce67b)
Diffstat (limited to 'source3/nameservreply.doc')
-rw-r--r--source3/nameservreply.doc79
1 files changed, 38 insertions, 41 deletions
diff --git a/source3/nameservreply.doc b/source3/nameservreply.doc
index aeb3d29f17..56a5d160f6 100644
--- a/source3/nameservreply.doc
+++ b/source3/nameservreply.doc
@@ -26,13 +26,15 @@ server, in which case, samba should redirect the query to another WINS
server).
the WINS pseudo-subnet NetBIOS database contains all NetBIOS names
-registered with samba in its capacity as a WINS server.
+that are not 'special browser' type names (regarding this i am a
+_bit_ confused :-). names of type 0x01, 0x1d and 0x1e i consider to
+be 'special browser' names. at the moment. maybe.
-the type of search to be initiated is determined. if the packet
-received is a point-to-point (unicast), then the WINS database
-is included in the search.
+the type of search to be initiated is determined. if the NetBIOS name
+type is a non-special-browser name, then the WINS database is included
+in the search.
-if the search is not in the WINS database, then we need to find the
+if the name is not a special browser name, then we need to find the
right subnet that the query came from. this is done using
find_req_subnet(). this also has the benefit of stopping any queries
from subnets that samba does not know about.
@@ -100,7 +102,8 @@ database as appropriate.
if the name is not found, then it is added to the NetBIOS name database,
using add_netbios_entry(), which may choose not to add the name (not
that this affects the registration of the name on the network in any way).
-it will only add non-SELF names to the WINS database.
+it will only add names to the WINS database, and even then it will only
+add non-special-browser type names.
if the name is found, then samba must decide whether to accept the name
or not. a group name is always added. for unique names, further checks
@@ -116,54 +119,21 @@ someone else. a check needs to be carried out with the owner in case
they still wish to keep this name. a detailed discussion of what action
to take is in rfc1001.txt 15.2.2.2 and 15.2.2.3.
-#if 0
-
samba currently implements non-secured WINS, whereupon the responsibility
for checking the name is passed on to the host doing the registration.
rfc1001.txt refers to this as an END-NODE CHALLENGE REGISTRATION RESPONSE.
(samba itself cannot yet cope with receiving such responses if it
registers its names with another WINS server).
-#else
-
-samba currently implements secured WINS, whereupon it is samba's
-responsibility to check the unique name before allowing it to be
-registered by the new owner.
-
-as checking the unique name may take some time, samba must send a Wait
-Acknowledge packet to the host that wishes to claim the name. a
-NAME_REGISTER_CHALLENGE 'state' is then initiated, which will result
-in a name query being issued to the current owner.
-
-if we receive a negative response or no response, the host wishing
-to claim the name is informed that they can have it. if we receive
-a positive response, this host is informed that it cannot have it.
-
-#endif
-
having decided what kind of response to send (if any - acceptance of
-name registrations by broadcast is implicit), samba will send a
+name registrations by broadcast is implicit), samba will send either a
positive or negative NAME REGISTRATION RESPONSE, or an END-NODE CHALLENGE
-REGISTRATION RESPONSE or a WAIT ACKNOWLEDGEMENT to the host that
-initially sent the registration.
-
+REGISTRATION RESPONSE to the host that initially sent the registration.
whew.
/*************************************************************************
- send_name_response()
- *************************************************************************/
-
-this function is responsible for sending out a positive or a negative
-registration response or release, or an end-node challenge registration
-response.
-
-it is called from reply_name_release(), reply_name_reg(),
-dead_netbios_entry() and response_name_query_register().
-
-
-/*************************************************************************
reply_name_release()
*************************************************************************/
@@ -187,3 +157,30 @@ at present, the criteria for removing a name have yet to be
developed / experimented with. at present, the only flags that
are checked are the NetBIOS flags.
+
+/*************************************************************************
+ send_name_response()
+ *************************************************************************/
+
+this function is a wrap around reply_netbios_packet(). it sends
+a response to a name registration or release packet, minimising
+the function parameters needed to do this.
+
+if the function is called with the parameter 'success' set to
+True, then a positive response (to the registration or release)
+is made (see rfc1002.txt 4.2.5 and 4.2.10). if this parameter
+is False, then a negative response is issued (see rfc1002.txt
+4.2.6 and 4.2.11)
+
+if the function is called with a registration code, and the
+parameter 'recurse' is False, then an End-Node Challenge
+Registration response is issued (see rfc1002.txt 4.2.7)
+
+note: this function could also easily be used for name conflict
+demand (see rfc1002.txt 4.2.8).
+
+note: End-Node Challenge Registration response is only sent in
+non-secured NetBIOS Name Server implementations. samba now
+implements secured NetBIOS Name Server functionality (see
+rfc1001.txt 15.1.6).
+