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Diffstat (limited to 'source/namepacket.doc')
| -rw-r--r-- | source/namepacket.doc | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/source/namepacket.doc b/source/namepacket.doc deleted file mode 100644 index 159a50738c5..00000000000 --- a/source/namepacket.doc +++ /dev/null @@ -1,133 +0,0 @@ -/* - Unix SMB/Netbios documentation. - Version 0.0 - Copyright (C) Luke Leighton Andrew Tridgell 1996 - - 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 - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - Document name: namepacket.doc - - Revision History: - - 0.0 - 02jul96 : lkcl@pires.co.uk - created -*/ - -this module deals with packets: sending, receiving, queueing -and some basic interpretation (e.g it excludes datagram -error packets at the moment). - -the packet queueing mechanism was originally introduced when -samba dealt with responses by sending a packet, receiving -packets and queueing all packets that didn't match up with -the response expected. this is fine in a single-thread -environment, but samba now deals with response packets by -queueing the responses. to some extent, therefore, this -queue_packet mechanism is redundant. - - -/************************************************************************* - send_mailslot_reply() - *************************************************************************/ - -this function is responsible for sending a MAILSLOT packet. - -it will _not_ send packets to the pseudo WINS subnet's address of -255.255.255.255: this would be disastrous. - -each packet sent out has a unique transaction identifier. this is done -so that responses can be matched later with the original purpose for -the packet being sent out in the first place. - - -/************************************************************************* - listen_for_packets() - *************************************************************************/ - -this function is responsible for reading NMB and DGRAM packets, and then -queueing them. it will normally time-out for NMBD_SELECT_LOOP seconds, but -if there is an election currently running or we are expecting a response -then this time is reduced to 1 second. - -note: the time-out period needs refining to the millisecond level. - - -/************************************************************************* - queue_packet() - *************************************************************************/ - -this function is responsible for queueing any NMB and DGRAM packets passed -to it. these packets will be removed from the queue in run_packet_queue(). - - -/************************************************************************* - run_packet_queue() - *************************************************************************/ - -this function is responsible for taking a packet off the queue, -identifying whether it is an NMB or a DGRAM packet, processing -it accordingly and deleting it. this process continues until -there are no more packets on the queue. - - -/************************************************************************* - process_nmb() - *************************************************************************/ - -this function receives a packet identified as a netbios packet. -it further identifies whether it is a response or a query packet. -by identifying the type of packet (name registration, query etc) -process_nmb() will call the appropriate function to deal with the -type of packet received. - - -/************************************************************************* - process_dgram() - *************************************************************************/ - -this function is responsible for identifying whether the datagram -packet received is a browser packet or a domain logon packet. it -also does some filtering of certain types of packets (e.g it -filters out error packets). - - -/************************************************************************* - reply_netbios_packet() - *************************************************************************/ - -this function is responsible for sending a reply to another NetBIOS -packet from another host. it can be used to send a reply to a name -registration, name release, name query or name status request. - -the reply can be either a positive or a negative one. - - -/************************************************************************* - initiate_netbios_packet() - *************************************************************************/ - -this function is responsible for construction a netbios packet and sending -it. if the packet has not had a unique transaction id allocated to it, -then initiate_netbios_packet() will give it one. - - -/************************************************************************* - update_name_trn_id() - *************************************************************************/ - -this function is responsible for allocating unique transaction identifiers -for each new packet sent on the network. - - |