[asterisk-ss7] libss7 bug with more than 2 signalling links and sig_ss7.c (chan_dahdi) logging bug

Gregory Massel greg at csurf.co.za
Thu Jan 9 14:39:29 CST 2020

Apologies; "two or more signalling links in a linkset" below should have 
been "more than two signalling links in a linkset"

On 2020-01-09 10:38 pm, Gregory Massel wrote:
> Hello all,
> I've picked up bugs in libss7-2.0.0 and within sig_ss7.c (chan_dahdi).
> - Libss7-2.0.0 cannot handle changeover (COO and COA) properly with 
> two or more signalling links in a linkset.
> - sig-ss7.c logs random SLC numbers in its messages "sig_ss7.c: MTP2 
> link up (SLC x)" and "MTP2 link down (SLC x)" instead of the actual 
> SLC number of the affected link.
> I've logged ASTERISK-28674 ( 
> https://issues.asterisk.org/jira/browse/ASTERISK-28674 ) and proposed 
> fixes.
> While I've tested the fixes, I would greatly appreciate peer review so 
> that they can be incorporated into future versions of libss7 and 
> Asterisk.
> Thank you
> Gregory Massel

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