From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tom Evans <tom_usenet@optusnet.com.au>
Subject: Re: getifaddrs and SocketCAN interfaces
Date: Mon, 30 Mar 2015 09:23:08 +1100
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To: Paarvai Naai <opensource3141@gmail.com>, linux-can@vger.kernel.org

On 29/03/15 07:30, Paarvai Naai wrote:
> Hi,
>
> I recently tried using getifaddrs to list all of the SocketCAN
> interfaces on my system programmatically.

root@triton1:/# find /sys -name "*can*"
/sys/bus/platform/devices/flexcan.0
/sys/bus/platform/devices/flexcan.1
/sys/bus/platform/drivers/flexcan
/sys/bus/platform/drivers/flexcan/flexcan.0
/sys/bus/platform/drivers/flexcan/flexcan.1
/sys/devices/soc.0/50000000.aips/flexcan.0
/sys/devices/soc.0/50000000.aips/flexcan.0/net/can0
/sys/devices/soc.0/50000000.aips/flexcan.1
/sys/devices/soc.0/50000000.aips/flexcan.1/net/can1
/sys/devices/virtual/net/vcan0
...
/sys/class/net/vcan0
/sys/class/net/can0
/sys/class/net/can1

Then I open them by name:

     struct ifreq ifr;
     strcpy(ifr.ifr_name, f_vnCanBusNames[a_eDevice]);
     /* ifr.ifr_ifindex gets filled
     rc = ioctl(pSkt->skt, SIOCGIFINDEX, &ifr);

Or was there something else you needed?

Tom