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Diffstat (limited to 'source/namebrowse.doc')
| -rw-r--r-- | source/namebrowse.doc | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/source/namebrowse.doc b/source/namebrowse.doc index 889abdacae9..44b76dd43f8 100644 --- a/source/namebrowse.doc +++ b/source/namebrowse.doc @@ -17,6 +17,36 @@ master browser. samba does not deal with becoming a backup master browser properly at present. +------------- +NOTE FROM TRIDGE: + +Yes, samba can send these either in its capacity as a DMB or as a +MB. There are only two situations: + +- If samba is a DMB then it should sync with the "local only" bit set +with any master browser that has sent it a "master announce". + +- if samba is not a DMB then it can only sync with the DMB, and should +not set the "local only" bit. + +Note that samba should never sync with other non-DMB servers when it +is not a DMB. + +Try to do a sync under any other circumstances is dangerous without a +multi-threaded nmbd. I have a print server at home that knows some SMB +and NBT, but if you try to sync browse lists with it then it clogs up, +and also clogs up nmbd while it times out the connection. If we +follow the above two rules then we can't get into this sort of +trouble as: + +- if we are a DMB and a master browser sends us a "master announce" +then it is expecting to receive a NetServerEnum SMB connection soon, +and must be capabable of handling it. + +- if we are not a DMB then we will only sync with the DMB, which must +be capable of doing this stuff or things are really in a mess :-) +-------------- + /************************************************************************* do_browser_lists() @@ -40,6 +70,24 @@ NetServerEnum api call. samba will only initiate this process if it is a master browser for this workgroup. +----------- +NOTE FROM TRIDGE: + +I'd actually prefer to skip the name query completely if we can +resolve the DMBs name via gethostbyname(). For the name query to work +we either have to have WINS working, or we need to know the broadcast +address of the network that the DMB is on. This makes us too dependent +on too many thing being right. + +If the gethostbyname() fails then sure, go for a normal name query, +but if it works then we have saved ourselves a lot of trouble and +gained a lot of robustness. + +This is best handled by a generic "resolve netbios name" routine that +tries DNS first then resorts to WINS or bcast if that fails. It also +needs to cache the results. +------------- + /************************************************************************* add_browser_entry() @@ -67,3 +115,6 @@ this function's scope) and have been in the cache for a while. this function is responsible for adding a new entry into the list of servers to sync browse lists with at some point in the near future. + + + |