Hello, while investigating the issue that ifconfig and ip link ls does not show the PROMISC flag while tcpdump is running, I found that flags returned in rtnetlink's ifinfo and /sys/class/net/eth0/flags differ. rtnetlink (net/core/rtnetlink.c:rtnl_fill_ifinfo) calls dev_get_flags (net/core/dev.c) to get the flags. Sysfs (net/core/net-sysfs.c) just shows what is in net->flags. Is this difference intentional? On the other hand, it's good that this net->flags is accessible somewhere, because it shows the real state of the PROMISC flag. If we want to show the real state in ip/ifconfig, what do you think we should do? Read /sys/class/net/eth0/flags? If this issue had been brought up before and decided, sorry. -- Tomas Janousek, SW Engineer, Red Hat, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
