From: Amit Prakash Shukla <amitprakashs@marvell.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
Kiran Kumar Kokkilagadda <kirankumark@marvell.com>,
Nithin Kumar Dabilpuram <ndabilpuram@marvell.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: RE: [EXT] Re: [RFC PATCH] graph: add support for pcap trace for graph
Date: Fri, 6 Jan 2023 10:40:30 +0000 [thread overview]
Message-ID: <PH0PR18MB516714195856EB68295B9BEFC8FB9@PH0PR18MB5167.namprd18.prod.outlook.com> (raw)
In-Reply-To: <20221223084714.446ebc08@hermes.local>
Thanks Stephen for the review. Sure, will use lib/pcapng.
I see dpdk libpcapng adds most of the debugging data, however I would like to add a node name to the packets which I am thinking of adding using 'comment' option under 'Enhanced Packet Block' .
Please let me know if that's fine.
Thanks,
Amit Shukla
> -----Original Message-----
> From: Stephen Hemminger <stephen@networkplumber.org>
> Sent: Friday, December 23, 2022 10:17 PM
> To: Amit Prakash Shukla <amitprakashs@marvell.com>
> Cc: Jerin Jacob Kollanukkaran <jerinj@marvell.com>; Kiran Kumar
> Kokkilagadda <kirankumark@marvell.com>; Nithin Kumar Dabilpuram
> <ndabilpuram@marvell.com>; dev@dpdk.org
> Subject: [EXT] Re: [RFC PATCH] graph: add support for pcap trace for graph
>
> External Email
>
> ----------------------------------------------------------------------
> On Fri, 23 Dec 2022 17:32:35 +0530
> Amit Prakash Shukla <amitprakashs@marvell.com> wrote:
>
> > +
> > + pcap_trace.file_descriptor = open(pcap_trace.file_name,
> > + O_CREAT | O_TRUNC | O_WRONLY,
> 0664);
> > + if (pcap_trace.file_descriptor < 0) {
> > + ret = 1;
> > + goto done;
> > + }
> > + pcap_trace.n_pcap_data_written = 0;
> > +
> > + /* Write file header. */
> > + memset(&file_hdr, 0, sizeof(file_hdr));
> > + file_hdr.magic = 0xa1b2c3d4;
> > + file_hdr.major_version = 2;
> > + file_hdr.minor_version = 4;
> > + file_hdr.time_zone = 0;
> > + file_hdr.max_packet_size_in_bytes = ((1 << 16) - 1);
> > + file_hdr.packet_type = pcap_trace.packet_type;
> > + n = write(pcap_trace.file_descriptor, &file_hdr, sizeof(file_hdr));
> > + if (n != sizeof(file_hdr)) {
> > + ret = 1;
> > + goto done;
> > + }
> > +
> > + while (pcap_trace.n_bytes > pcap_trace.n_pcap_data_written) {
> > + int n = pcap_trace.n_bytes -
> pcap_trace.n_pcap_data_written;
> > +
> > + n = write(pcap_trace.file_descriptor,
>
> NAK please use lib/pcapng rather than rolling your own pcap format code
next prev parent reply other threads:[~2023-01-06 10:40 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-23 12:02 Amit Prakash Shukla
2022-12-23 16:47 ` Stephen Hemminger
2023-01-06 10:40 ` Amit Prakash Shukla [this message]
2023-01-06 16:41 ` [EXT] " Stephen Hemminger
2023-01-06 18:56 ` Stephen Hemminger
2023-01-10 11:26 ` Amit Prakash Shukla
2023-01-10 11:58 ` [PATCH v1 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-10 11:58 ` [PATCH v1 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-10 11:58 ` [PATCH v1 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-10 17:05 ` [PATCH v1 1/3] pcapng: comment option support for epb Stephen Hemminger
2023-01-11 8:53 ` [PATCH v2 " Amit Prakash Shukla
2023-01-11 8:53 ` [PATCH v2 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-11 16:07 ` Stephen Hemminger
2023-01-12 9:57 ` [EXT] " Amit Prakash Shukla
2023-01-12 16:30 ` Stephen Hemminger
2023-01-19 14:37 ` Amit Prakash Shukla
2023-01-19 16:48 ` Stephen Hemminger
2023-01-11 8:53 ` [PATCH v2 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-12 10:01 ` [PATCH v3 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-12 10:01 ` [PATCH v3 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-12 12:18 ` Jerin Jacob
2023-01-19 14:21 ` [EXT] " Amit Prakash Shukla
2023-01-12 10:01 ` [PATCH v3 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-24 11:21 ` [PATCH v4 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-01-24 11:21 ` [PATCH v4 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-01-31 8:06 ` Jerin Jacob
2023-02-03 8:15 ` [EXT] " Amit Prakash Shukla
2023-01-24 11:21 ` [PATCH v4 3/3] l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-01-31 8:14 ` Jerin Jacob
2023-02-03 8:16 ` [EXT] " Amit Prakash Shukla
2023-02-03 8:19 ` [PATCH v5 1/3] pcapng: comment option support for epb Amit Prakash Shukla
2023-02-03 8:19 ` [PATCH v5 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09 9:12 ` David Marchand
2023-02-09 9:29 ` [EXT] " Amit Prakash Shukla
2023-02-03 8:19 ` [PATCH v5 3/3] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09 9:13 ` [PATCH v5 1/3] pcapng: comment option support for epb David Marchand
2023-02-09 16:48 ` Stephen Hemminger
2023-02-09 9:56 ` [PATCH v6 1/4] " Amit Prakash Shukla
2023-02-09 9:56 ` [PATCH v6 2/4] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09 9:56 ` [PATCH v6 3/4] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09 9:56 ` [PATCH v6 4/4] test/graph: initialize graph param variable Amit Prakash Shukla
2023-02-09 10:03 ` [PATCH v6 1/4] pcapng: comment option support for epb Amit Prakash Shukla
2023-02-09 10:24 ` [PATCH v7 1/3] " Amit Prakash Shukla
2023-02-09 10:24 ` [PATCH v7 2/3] graph: pcap capture for graph nodes Amit Prakash Shukla
2023-02-09 10:24 ` [PATCH v7 3/3] examples/l3fwd-graph: changes to configure pcap capture Amit Prakash Shukla
2023-02-09 17:28 ` Jerin Jacob
2023-02-10 12:18 ` David Marchand
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