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See the * GNU General Public License for more details. */ #ifndef __IF_TUN_H #define __IF_TUN_H #include #include #include /* Read queue size */ #define TUN_READQ_SIZE 500 /* TUN device type flags: deprecated. Use IFF_TUN/IFF_TAP instead. */ #define TUN_TUN_DEV IFF_TUN #define TUN_TAP_DEV IFF_TAP #define TUN_TYPE_MASK 0x000f /* Ioctl defines */ #define TUNSETNOCSUM _IOW('T', 200, int) #define TUNSETDEBUG _IOW('T', 201, int) #define TUNSETIFF _IOW('T', 202, int) #define TUNSETPERSIST _IOW('T', 203, int) #define TUNSETOWNER _IOW('T', 204, int) #define TUNSETLINK _IOW('T', 205, int) #define TUNSETGROUP _IOW('T', 206, int) #define TUNGETFEATURES _IOR('T', 207, unsigned int) #define TUNSETOFFLOAD _IOW('T', 208, unsigned int) #define TUNSETTXFILTER _IOW('T', 209, unsigned int) #define TUNGETIFF _IOR('T', 210, unsigned int) #define TUNGETSNDBUF _IOR('T', 211, int) #define TUNSETSNDBUF _IOW('T', 212, int) #define TUNATTACHFILTER _IOW('T', 213, struct sock_fprog) #define TUNDETACHFILTER _IOW('T', 214, struct sock_fprog) #define TUNGETVNETHDRSZ _IOR('T', 215, int) #define TUNSETVNETHDRSZ _IOW('T', 216, int) #define TUNSETQUEUE _IOW('T', 217, int) #define TUNSETIFINDEX _IOW('T', 218, unsigned int) #define TUNGETFILTER _IOR('T', 219, struct sock_fprog) #define TUNSETVNETLE _IOW('T', 220, int) #define TUNGETVNETLE _IOR('T', 221, int) /* The TUNSETVNETBE and TUNGETVNETBE ioctls are for cross-endian support on * little-endian hosts. Not all kernel configurations support them, but all * configurations that support SET also support GET. */ #define TUNSETVNETBE _IOW('T', 222, int) #define TUNGETVNETBE _IOR('T', 223, int) #define TUNSETSTEERINGEBPF _IOR('T', 224, int) #define TUNSETFILTEREBPF _IOR('T', 225, int) #define TUNSETCARRIER _IOW('T', 226, int) #define TUNGETDEVNETNS _IO('T', 227) /* TUNSETIFF ifr flags */ #define IFF_TUN 0x0001 #define IFF_TAP 0x0002 #define IFF_NAPI 0x0010 #define IFF_NAPI_FRAGS 0x0020 #define IFF_NO_PI 0x1000 /* This flag has no real effect */ #define IFF_ONE_QUEUE 0x2000 #define IFF_VNET_HDR 0x4000 #define IFF_TUN_EXCL 0x8000 #define IFF_MULTI_QUEUE 0x0100 #define IFF_ATTACH_QUEUE 0x0200 #define IFF_DETACH_QUEUE 0x0400 /* read-only flag */ #define IFF_PERSIST 0x0800 #define IFF_NOFILTER 0x1000 /* Socket options */ #define TUN_TX_TIMESTAMP 1 /* Features for GSO (TUNSETOFFLOAD). */ #define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */ #define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */ #define TUN_F_TSO6 0x04 /* I can handle TSO for IPv6 packets */ #define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */ #define TUN_F_UFO 0x10 /* I can handle UFO packets */ /* Protocol info prepended to the packets (when IFF_NO_PI is not set) */ #define TUN_PKT_STRIP 0x0001 struct tun_pi { __u16 flags; __be16 proto; }; /* * Filter spec (used for SETXXFILTER ioctls) * This stuff is applicable only to the TAP (Ethernet) devices. * If the count is zero the filter is disabled and the driver accepts * all packets (promisc mode). * If the filter is enabled in order to accept broadcast packets * broadcast addr must be explicitly included in the addr list. */ #define TUN_FLT_ALLMULTI 0x0001 /* Accept all multicast packets */ struct tun_filter { __u16 flags; /* TUN_FLT_ flags see above */ __u16 count; /* Number of addresses */ __u8 addr[0][ETH_ALEN]; }; #endif /* __IF_TUN_H */