On Mon, 21 Dec 2020 13:33:22 -0800
Long Li <lon...@linuxonhyperv.com> wrote:
> /* trying to get mac address if this is a network device*/
> + s = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
> + if (s == -1) {
> + PMD_DRV_LOG(ERR, "Failed to create socket errno %d\n",
> + errno);
> + break;
> + }
> + strlcpy(req.ifr_name, dir->d_name, sizeof(req.ifr_name));
> + ret = ioctl(s, SIOCGIFHWADDR, &req);
> + close(s);
> + if (ret == -1) {
> + PMD_DRV_LOG(ERR, "Failed to send SIOCGIFHWADDR for "
> + "device %s\n", dir->d_name);
> + break;
> + }
> + if (req.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
> + closedir(di);
> + return;
> + }
You have sysfs directory open at this point, would it be easier to continue
with sysfs to find the mac address?
snprintf(ifpath, sizeof(ifpath), "%s/address", dir->d_name);
fd = openat(dirfd(di), ifpath, O_RDONLY);
read(fd...)
