Here a example of function used to pool lib dependency

https://github.com/kamailio/kamailio-ci/blob/master/alpine/build.sh#L80-L103

On Fri, Sep 29, 2023 at 5:41 PM Carsten Bock via sr-users <sr-users@lists.kamailio.org> wrote:

Hi,

We are using that "ldd" approach for our Docker containers: We are running ldd on the Kamailio binary and the modules from config (may vary - depending on system) and use that result to create a slim Kamailio Container "from scratch" - without any operating system.

Thanks,

Carsten

--

Carsten Bock I Chief Technology Innovation Officer & Founder

ng-voice GmbH

Trostbrücke 1 I 20457 Hamburg I Germany
T +49 1511 5942983 I www.ng-voice.com

Registry Office at Local Court Hamburg, HRB 120189
Managing Directors: Dr. David Bachmann, Carsten Bock, Quirin Maderspacher

Am Do., 28. Sept. 2023 um 19:22 Uhr schrieb Daniel-Constantin Mierla via sr-users <sr-users@lists.kamailio.org>:

On 28.09.23 13:13, Olle E. Johansson via sr-users wrote:

On 28 Sep 2023, at 12:36, Ivan Ribakov via sr-users <sr-users@lists.kamailio.org> wrote:

Hi Olle,

Yes, I realised by now that taking enabled Kamailio modules into account when generating SBOM is too much to ask. I'd be ok with obtaining full list of Kamailio dependencies (with transitive dependencies if possible) and then manually filtering them based on module usage. Not sure if at any point during Kamailio build process all sources + dependency sources/binaries are present in the system for scanning/identification?

I'm mainly interested in listing (and validating licenses) and having a general inventory. Any recommendations?

I did try a beta of a tool in cyclonedx toolset for scanning C files and it crashed. Will try again, but so far I haven’t succeeded. 

I suggest we would need one SBOM based on a linux distro, like Debian and one

more generic based on C code and the versions of libraries we recommend. I have tried to add pointers to the various

third party dependencies in the READMEs over the years in a somewhat unstructured effort, but the information is there.

Maybe we can add the dependencies in a way that’s parseable in order to build an SBOM.

C code doesn’t have package management like Python, Perl, Go and others so it’s tricky to automate creation of SBOMs.

I think that the SBOM tree for the source code and dependencies would grow quite large.

Anyway -  at this time, I failed. :-)

Maybe leveraging ldd in a first phase can help building the chain of dependencies:

$ ldd src/kamailio
    linux-vdso.so.1 (0x0000ffff91745000)
    libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffff90f30000)
    libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffff90d80000)
    /lib/ld-linux-aarch64.so.1 (0x0000ffff9170c000)

$ ldd src/modules/tls/tls.so
    linux-vdso.so.1 (0x0000ffff96e5d000)
    libssl.so.3 => /lib/aarch64-linux-gnu/libssl.so.3 (0x0000ffff96ca0000)
    libcrypto.so.3 => /lib/aarch64-linux-gnu/libcrypto.so.3 (0x0000ffff968b0000)
    libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffff96700000)
    /lib/ld-linux-aarch64.so.1 (0x0000ffff96e24000)

$ ldd /lib/aarch64-linux-gnu/libcrypto.so.3
    linux-vdso.so.1 (0x0000ffff9952c000)
    libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffff98f50000)
    /lib/ld-linux-aarch64.so.1 (0x0000ffff994f3000)

Might take some time, a matter of what modules are used, but if really needed, the process should be doable manually.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla (@ asipto.com)
twitter.com/miconda -- linkedin.com/in/miconda
Kamailio Consultancy and Development Services
Kamailio Advanced Training - Online - Nov 14-16, 2023 -- asipto.com

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