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If a client disconnected all its interfaces and reconnects when the come back, it will likely start from any ip address returned dns, which means it can try to connect to a different ctdb node. The old node may not have noticed the disconnect and still holds the client_guid based smbd. Up unil now the new node returned NT_STATUS_NOT_SUPPORTED to the SMB2 Negotiate request, as messaging_send_iov[_from]() will return -1/ENOSYS if a file descriptor os passed to a process on a different node. Now we tell the other node to teardown all client connections belonging to the client-guid. Note that this is not authenticated, but if an attacker can capture the client-guid, he can also inject TCP resets anyway, to get the same effect. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15159 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> Autobuild-User(master): Jeremy Allison <jra@samba.org> Autobuild-Date(master): Fri Sep 2 20:59:15 UTC 2022 on sn-devel-184 |
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| ABI | ||
| gen_ndr | ||
| idl | ||
| ndr | ||
| rpc | ||
| tests | ||
| tools | ||
| binding-strings.txt | ||
| ndr_krb5pac.pc.in | ||
| ndr_nbt.pc.in | ||
| ndr_standard.pc.in | ||
| ndr.pc.in | ||
| tables.pl | ||
| wscript_build | ||