No output from pcap2canlog

[nico0481]

Hello,

I try to use your pcap2canlog but it returns nothing and no error.

• cargo build:

[~/Documents/CAN/pcap2canlog/pcap2canlog]
$ sudo cargo build          
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s

• cargo run without argument:

$ sudo cargo run            
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.03s
     Running `target/debug/pcap2canlog`
error: The following required arguments were not provided:
    <pcap file>

USAGE:
    pcap2canlog <pcap file> --devname <devname>

For more information try --help

• cargo run:

$ sudo cargo run canflag.pcap                    
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.02s
     Running `target/debug/pcap2canlog canflag.pcap`

Return absolutely nothing, neither in terminal nor with > can.log

What's wrong?

[man0lis]

Hi,
have not looked at this code for years, but it seems to ignore all packages that are not can traffic (in den specific format I used back in the day, should be socketcan or something).
The code checks if byte 14 and 15 of a packet are 00 and 0C. Could you check if this is the case for you? Or maybe post an example package or pcap file.

[nico0481]

Hi,
What do you mean with byte 14 and 15 of a packet are 00 and 0C?
Here is a sample of the pcap file
testcan.zip

[man0lis]

Hi, sorry for taking so long to answer.
I looked into it, but unfortunately I do not know why the packets in your pcap file do not match the format I saw when I wrote this tool.
Also... the last time I used it was 8 years ago and I can't find the pcap files I used back then anymore.
All hardware I used was owned by the university.
My time is way more limited these days so I can't guarantee that there will be a solution at some point.

I might get back into can stuff later this year.
I bought myself a new USB2CAN adapter for xmas, but still looking for a car I'm allowed to...play with.

Long story short, I might fix this, but the time frame could be months. Playing with CAN stuff currently has low priority in my time management.

If you find a solution yourself, I'm happy to merge a PR. When I remember correctly the canlog format is rather simple. The code just parses the package bytes and then outputs them in hex line by line (or something like that).