Re: [PATCH v2] pcapng: allow any protocol link type for the interface block

[Thomas Monjalon <thomas@monjalon.net>]

Sorry I did not investigate, but there is probably a different installation of the pcap library.

I have this in a config file:

pcaparm=$deps/libpcap/build-aarch64/install # requires big changes in DPDK
#export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$pcaparm/lib/pkgconfig

I don't remember what are the big changes required, and why it is disabled.

Checking Meson, libpcap is indeed not found on aarch64:

	Run-time dependency libpcap found: NO (tried pkgconfig)
	Library pcap found: NO

Can you check whether the error can be related to the absence of libpcap?



30/06/2025 15:50, Dylan Schneider:
> Hey Thomas, just wanted to confirm,  I see the ARM build passing in CI. Is there a reason it would pass there but not on your dev machine?
> 
> 
> ________________________________
> From: Dylan Schneider <schneide@qti.qualcomm.com>
> Sent: Friday, June 27, 2025 11:46 AM
> To: Thomas Monjalon <thomas@monjalon.net>
> Cc: dev@dpdk.org <dev@dpdk.org>; Reshma Pattan <reshma.pattan@intel.com>; Stephen Hemminger <stephen@networkplumber.org>; Jerin Jacob <jerinj@marvell.com>; Kiran Kumar K <kirankumark@marvell.com>; Nithin Dabilpuram <ndabilpuram@marvell.com>; Zhirun Yan <yanzhirun_163@163.com>
> Subject: Re: [PATCH v2] pcapng: allow any protocol link type for the interface block
> 
> 
> WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.
> 
> Hey Thomas,
> Thanks for the reply.
> Can you tell me the build command you're using to produce those errors? I have ran the builds on my test machine and cannot reproduce these. Thanks!
> Dylan
> ________________________________
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Friday, June 27, 2025 11:39 AM
> To: Dylan Schneider <schneide@qti.qualcomm.com>
> Cc: dev@dpdk.org <dev@dpdk.org>; Reshma Pattan <reshma.pattan@intel.com>; Stephen Hemminger <stephen@networkplumber.org>; Jerin Jacob <jerinj@marvell.com>; Kiran Kumar K <kirankumark@marvell.com>; Nithin Dabilpuram <ndabilpuram@marvell.com>; Zhirun Yan <yanzhirun_163@163.com>
> Subject: Re: [PATCH v2] pcapng: allow any protocol link type for the interface block
> 
> WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.
> 
> 09/06/2025 23:19, Schneide:
> > From: Dylan Schneider <schneide@qti.qualcomm.com>
> >
> > Allow the user to specify protocol link type when creating pcapng files.
> > This change is needed to specify the protocol type in the pcapng file,
> > DLT_EN10MB specifies ethernet packets only. This will allow dissectors
> > for other protocols to be used on files generated by pcapng.
> >
> > Includes a breaking change to rte_pcapng_add_interface to add link_type
> > parameter. Existing calls to the function have been updated to pass
> > DLT_EN10MB for the link type argument.
> >
> > Fixes: d1da6d0d04c7 ("pcapng: require per-interface information")
> > Signed-off-by: Dylan Schneider <schneide@qti.qualcomm.com>
> > Cc: stephen@networkplumber.org
> 
> I doesn't pass compilation test on my machine:
> 
> Error: cannot find librte_pcapng.so.25.1 in dpdk-build/build-arm64-generic-gcc/install
> Error: cannot find librte_graph.so.25.1 in dpdk-build/build-arm64-generic-gcc/install
> Error: cannot find librte_node.so.25.1 in dpdk-build/build-arm64-generic-gcc/install
> Error: cannot find librte_pdump.so.25.1 in dpdk-build/build-arm64-generic-gcc/install
> 
> 
> 
>