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Diffstat (limited to 'source/nameserv.doc')
| -rw-r--r-- | source/nameserv.doc | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/source/nameserv.doc b/source/nameserv.doc deleted file mode 100644 index af4934ade21..00000000000 --- a/source/nameserv.doc +++ /dev/null @@ -1,159 +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: nameserv.doc - - Revision History: - - 0.0 - 02jul96 : lkcl@pires.co.uk - created -*/ - -this module deals with general maintenance of NetBIOS names. - -/************************************************************************* - query_refresh_names() - *************************************************************************/ - -this function is responsible for polling all names registered in the -WINS database. it is planned to enable this function should samba -detect an inconsistency on the network, which could occur if the -samba NetBIOS daemon dies and is restarted. - -polling is done very infrequently, but all names will be covered -within a period NAME_POLL_REFRESH_TIME. a group of at most ten names -will be queried at once, at intervals of NAME_POLL_INTERVAL seconds. -if the total number of names queried in this way will take too long, -then the time that an individual name will next be polled is -increased accordingly. - -name query polling is functionality over-and-above the normal -requirement (see rfc1001.txt 15.1.7 point 7). it is normally the -responsibility of the owner of a name to re-register the name at -regular intervals. - - -/************************************************************************* - refresh_my_names() - *************************************************************************/ - -this function is responsible for refreshing samba's names that have -been registered with other servers on a local subnet, or with another -WINS server if samba is using one. - -samba's names' refresh_time will be updated through the use of the function -add_my_name_entry(). - - -/************************************************************************* - remove_my_names() - *************************************************************************/ - -this function is responsible for removing all samba's SELF names. it -is used when samba receives a SIG_TERM. samba at present does not wait -for the WINS server to reply to the name releases sent out. - - -/************************************************************************* - add_my_names() - *************************************************************************/ - -this function is responsible for adding and registering if necessary all -samba's SELF names, on each of its local subnets and with another WINS -server if samba is using one. - -/************************************************************************* - add_my_name_entry() - *************************************************************************/ - -this function is responsible for registering or re-registering one of -samba's names, either on the local subnet or with another WINS server -if samba is using one. - -if the name is already in samba's database, then it is re-registered, -otherwise it is simply registered. - -if the name is being registered in a WINS capacity (the subnet to which -the name should be added is the WINS pseudo-subnet) then we add the entry -immediately if samba is a WINS server. it uses name_register_work() -because if the name is being added as part of becoming a master browser, -we want to carry on that process. if the name is registered with another -WINS server, we must wait for an answer from that WINS server. either -name_register_work() or name_unregister_work() will be called as a result. - -if the name is being registered on a local subnet, then it is -broadcast. an explicit rejection from another host will result -in name_unregister_work() being called. no response will, after -retrying, result in name_register_work() being called. - -what ever method is used, the name will either be registered -or rejected, and what ever process was taking place (becoming -a master browser for example) will carry on. - -expire_netbios_response_entries() is responsible for taking further -action if no response to the registration is received. - -note that there may be a large number of function calls on the -stack if become_master() is called and samba is configured as -a WINS server. the loop will be: - -become_master(), add_my_name_entry(), name_register_work() and -back to become_master() with the new value of the workgroup -'state'. - - -/************************************************************************* - remove_name_entry() - *************************************************************************/ - -this function is responsible for removing a NetBIOS name. if the name -being removed is registered on a local subnet, a name release should be -broadcast on the local subnet. - -if the name is being released in a WINS capacity (the subnet to -which the name should be added is the WINS pseudo-subnet) then we -remove the entry immediately if samba is a WINS server. it uses -name_unregister_work() because if the name is being added as part of -becoming a master browser, we want to terminate that process. if the -name is released from another WINS server, we must wait for an -answer from that WINS server. name_unregister_work() will -definitely be called as a result, because at present we ignore -negative responses for a name release from a WINS server. - -if the name is being releasedd on a local subnet, then it is -broadcast. name_unregister_work() will definitely be called -because we ignore negative name releases at present. - -what ever method is used, the name will be released. (NOT TRUE! -see response_name_release()) - -expire_netbios_response_entries() is responsible for taking further action -if no response to the name release is received. - - -/************************************************************************* - load_netbios_names() - *************************************************************************/ - -this function is responsible for loading any NetBIOS names that samba, -in its WINS capacity, has written out to disk. all the relevant details -are recorded in this file, including the time-to-live. should the -time left to live be small, the name is not added back in to samba's -WINS database. - |