Change in osmo-bsc[master]: abis_nm: actively block BTSs with invalid configuration

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dexter gerrit-no-reply at lists.osmocom.org
Thu Nov 25 11:10:58 UTC 2021


dexter has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-bsc/+/26197 )

Change subject: abis_nm: actively block BTSs with invalid configuration
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Patch Set 6:

Probably I did not understand this correctly. I guess you mean that the dropping/rejecting should be done from osmo_bsc_main.c:inp_sig_cb. I have tried that, but all I get a segfault then. That is why I opted to do the rejecting from abis_nm.c:abis_nm_rcvmsg_fom

A sign_link_up callback seems only to exist for ipaccess BTSs. So it seems logical to execute ipaccess_drop_oml() of the BTS from there as well. Surprisingly this does not work either. The problem now is that osmo_bsc_main.c:inp_sig_cb does not get the S_L_INP_TEI_UP event anymore, so the config is not re-checked and the BTS is permanently rejected.

What we could do is to execute the check from bts_ipaccess_nanobts.c:ipaccess_sign_link_up() once more. Then it should work.


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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: I42c1c26a9b800600787b1266a871f95f2114c26e
Gerrit-Change-Number: 26197
Gerrit-PatchSet: 6
Gerrit-Owner: dexter <pmaier at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-CC: fixeria <vyanitskiy at sysmocom.de>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-Comment-Date: Thu, 25 Nov 2021 11:10:58 +0000
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