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Diffstat (limited to 'include/uapi/linux/if.h')
-rw-r--r--include/uapi/linux/if.h134
1 files changed, 80 insertions, 54 deletions
diff --git a/include/uapi/linux/if.h b/include/uapi/linux/if.h
index d758163b0e43..9cf2394f0bcf 100644
--- a/include/uapi/linux/if.h
+++ b/include/uapi/linux/if.h
@@ -27,65 +27,91 @@
#define IFALIASZ 256
#include <linux/hdlc/ioctl.h>
-/* Standard interface flags (netdevice->flags). */
-#define IFF_UP 0x1 /* interface is up */
-#define IFF_BROADCAST 0x2 /* broadcast address valid */
-#define IFF_DEBUG 0x4 /* turn on debugging */
-#define IFF_LOOPBACK 0x8 /* is a loopback net */
-#define IFF_POINTOPOINT 0x10 /* interface is has p-p link */
-#define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
-#define IFF_RUNNING 0x40 /* interface RFC2863 OPER_UP */
-#define IFF_NOARP 0x80 /* no ARP protocol */
-#define IFF_PROMISC 0x100 /* receive all packets */
-#define IFF_ALLMULTI 0x200 /* receive all multicast packets*/
-
-#define IFF_MASTER 0x400 /* master of a load balancer */
-#define IFF_SLAVE 0x800 /* slave of a load balancer */
-
-#define IFF_MULTICAST 0x1000 /* Supports multicast */
-
-#define IFF_PORTSEL 0x2000 /* can set media type */
-#define IFF_AUTOMEDIA 0x4000 /* auto media select active */
-#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses*/
-
-#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
-#define IFF_DORMANT 0x20000 /* driver signals dormant */
+/**
+ * enum net_device_flags - &struct net_device flags
+ *
+ * These are the &struct net_device flags, they can be set by drivers, the
+ * kernel and some can be triggered by userspace. Userspace can query and
+ * set these flags using userspace utilities but there is also a sysfs
+ * entry available for all dev flags which can be queried and set. These flags
+ * are shared for all types of net_devices. The sysfs entries are available
+ * via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs
+ * are annotated below, note that only a few flags can be toggled and some
+ * other flags are always always preserved from the original net_device flags
+ * even if you try to set them via sysfs. Flags which are always preserved
+ * are kept under the flag grouping @IFF_VOLATILE. Flags which are volatile
+ * are annotated below as such.
+ *
+ * You should have a pretty good reason to be extending these flags.
+ *
+ * @IFF_UP: interface is up. Can be toggled through sysfs.
+ * @IFF_BROADCAST: broadcast address valid. Volatile.
+ * @IFF_DEBUG: turn on debugging. Can be toggled through sysfs.
+ * @IFF_LOOPBACK: is a loopback net. Volatile.
+ * @IFF_POINTOPOINT: interface is has p-p link. Volatile.
+ * @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs.
+ * Volatile.
+ * @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile.
+ * @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile.
+ * @IFF_PROMISC: receive all packets. Can be toggled through sysfs.
+ * @IFF_ALLMULTI: receive all multicast packets. Can be toggled through
+ * sysfs.
+ * @IFF_MASTER: master of a load balancer. Volatile.
+ * @IFF_SLAVE: slave of a load balancer. Volatile.
+ * @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs.
+ * @IFF_PORTSEL: can set media type. Can be toggled through sysfs.
+ * @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs.
+ * @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled
+ * through sysfs.
+ * @IFF_LOWER_UP: driver signals L1 up. Volatile.
+ * @IFF_DORMANT: driver signals dormant. Volatile.
+ * @IFF_ECHO: echo sent packets. Volatile.
+ */
+enum net_device_flags {
+ IFF_UP = 1<<0, /* sysfs */
+ IFF_BROADCAST = 1<<1, /* volatile */
+ IFF_DEBUG = 1<<2, /* sysfs */
+ IFF_LOOPBACK = 1<<3, /* volatile */
+ IFF_POINTOPOINT = 1<<4, /* volatile */
+ IFF_NOTRAILERS = 1<<5, /* sysfs */
+ IFF_RUNNING = 1<<6, /* volatile */
+ IFF_NOARP = 1<<7, /* sysfs */
+ IFF_PROMISC = 1<<8, /* sysfs */
+ IFF_ALLMULTI = 1<<9, /* sysfs */
+ IFF_MASTER = 1<<10, /* volatile */
+ IFF_SLAVE = 1<<11, /* volatile */
+ IFF_MULTICAST = 1<<12, /* sysfs */
+ IFF_PORTSEL = 1<<13, /* sysfs */
+ IFF_AUTOMEDIA = 1<<14, /* sysfs */
+ IFF_DYNAMIC = 1<<15, /* sysfs */
+ IFF_LOWER_UP = 1<<16, /* volatile */
+ IFF_DORMANT = 1<<17, /* volatile */
+ IFF_ECHO = 1<<18, /* volatile */
+};
-#define IFF_ECHO 0x40000 /* echo sent packets */
+#define IFF_UP IFF_UP
+#define IFF_BROADCAST IFF_BROADCAST
+#define IFF_DEBUG IFF_DEBUG
+#define IFF_LOOPBACK IFF_LOOPBACK
+#define IFF_POINTOPOINT IFF_POINTOPOINT
+#define IFF_NOTRAILERS IFF_NOTRAILERS
+#define IFF_RUNNING IFF_RUNNING
+#define IFF_NOARP IFF_NOARP
+#define IFF_PROMISC IFF_PROMISC
+#define IFF_ALLMULTI IFF_ALLMULTI
+#define IFF_MASTER IFF_MASTER
+#define IFF_SLAVE IFF_SLAVE
+#define IFF_MULTICAST IFF_MULTICAST
+#define IFF_PORTSEL IFF_PORTSEL
+#define IFF_AUTOMEDIA IFF_AUTOMEDIA
+#define IFF_DYNAMIC IFF_DYNAMIC
+#define IFF_LOWER_UP IFF_LOWER_UP
+#define IFF_DORMANT IFF_DORMANT
+#define IFF_ECHO IFF_ECHO
#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
-/* Private (from user) interface flags (netdevice->priv_flags). */
-#define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */
-#define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */
-#define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */
-#define IFF_MASTER_8023AD 0x8 /* bonding master, 802.3ad. */
-#define IFF_MASTER_ALB 0x10 /* bonding master, balance-alb. */
-#define IFF_BONDING 0x20 /* bonding master or slave */
-#define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */
-#define IFF_ISATAP 0x80 /* ISATAP interface (RFC4214) */
-#define IFF_MASTER_ARPMON 0x100 /* bonding master, ARP mon in use */
-#define IFF_WAN_HDLC 0x200 /* WAN HDLC device */
-#define IFF_XMIT_DST_RELEASE 0x400 /* dev_hard_start_xmit() is allowed to
- * release skb->dst
- */
-#define IFF_DONT_BRIDGE 0x800 /* disallow bridging this ether dev */
-#define IFF_DISABLE_NETPOLL 0x1000 /* disable netpoll at run-time */
-#define IFF_MACVLAN_PORT 0x2000 /* device used as macvlan port */
-#define IFF_BRIDGE_PORT 0x4000 /* device used as bridge port */
-#define IFF_OVS_DATAPATH 0x8000 /* device used as Open vSwitch
- * datapath port */
-#define IFF_TX_SKB_SHARING 0x10000 /* The interface supports sharing
- * skbs on transmit */
-#define IFF_UNICAST_FLT 0x20000 /* Supports unicast filtering */
-#define IFF_TEAM_PORT 0x40000 /* device used as team port */
-#define IFF_SUPP_NOFCS 0x80000 /* device supports sending custom FCS */
-#define IFF_LIVE_ADDR_CHANGE 0x100000 /* device supports hardware address
- * change when it's running */
-#define IFF_MACVLAN 0x200000 /* Macvlan device */
-
-
#define IF_GET_IFACE 0x0001 /* for querying only */
#define IF_GET_PROTO 0x0002