[dpdk-dev] [PATCH V17 3/4] eal/linux: uevent parse and process

[Stephen Hemminger]

On Fri, 30 Mar 2018 00:00:04 +0800
Jeff Guo <jia.guo at intel.com> wrote:

> +dev_uev_monitor_create(int netlink_fd)
> +{
> +	struct sockaddr_nl addr;
> +	int ret;
> +	int size = 64 * 1024;
> +	int nonblock = 1;
> +
> +	memset(&addr, 0, sizeof(addr));
> +	addr.nl_family = AF_NETLINK;
> +	addr.nl_pid = 0;
> +	addr.nl_groups = 0xffffffff;
> +
> +	if (bind(netlink_fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
> +		RTE_LOG(ERR, EAL, "Failed to bind socket for netlink fd.\n");
> +		goto err;
> +	}
> +
> +	setsockopt(netlink_fd, SOL_SOCKET, SO_PASSCRED, &size, sizeof(size));
> +
> +	ret = ioctl(netlink_fd, FIONBIO, &nonblock);
> +	if (ret != 0) {
> +		RTE_LOG(ERR, EAL, "ioctl(FIONBIO) failed.\n");
> +		goto err;
> +	}
> +	return 0;
> +err:

You should set close on exec for this fd (with fcntl).