On 3/30/2018 1:00 AM, Stephen Hemminger wrote:
On Fri, 30 Mar 2018 00:00:04 +0800 Jeff Guo <[email protected]> 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).
yes, but i have already set it when fd creation time by SOCK_CLOEXEC.
