diff options
Diffstat (limited to 'lib/tun.h')
| -rw-r--r-- | lib/tun.h | 61 |
1 files changed, 29 insertions, 32 deletions
@@ -12,44 +12,42 @@ #ifndef _TUN_H #define _TUN_H -#define PACKET_MAX 8196 /* Maximum packet size we receive */ +#define PACKET_MAX 8196 /* Maximum packet size we receive */ #define TUN_SCRIPTSIZE 256 #define TUN_ADDRSIZE 128 #define TUN_NLBUFSIZE 1024 struct tun_packet_t { - unsigned int ver:4; - unsigned int ihl:4; - unsigned int dscp:6; - unsigned int ecn:2; - unsigned int length:16; - unsigned int id:16; - unsigned int flags:3; - unsigned int fragment:13; - unsigned int ttl:8; - unsigned int protocol:8; - unsigned int check:16; - unsigned int src:32; - unsigned int dst:32; + unsigned int ver:4; + unsigned int ihl:4; + unsigned int dscp:6; + unsigned int ecn:2; + unsigned int length:16; + unsigned int id:16; + unsigned int flags:3; + unsigned int fragment:13; + unsigned int ttl:8; + unsigned int protocol:8; + unsigned int check:16; + unsigned int src:32; + unsigned int dst:32; }; - /* *********************************************************** * Information storage for each tun instance *************************************************************/ struct tun_t { - int fd; /* File descriptor to tun interface */ - struct in_addr addr; - struct in_addr dstaddr; - struct in_addr netmask; - int addrs; /* Number of allocated IP addresses */ - int routes; /* One if we allocated an automatic route */ - char devname[IFNAMSIZ];/* Name of the tun device */ - int (*cb_ind) (struct tun_t *tun, void *pack, unsigned len); + int fd; /* File descriptor to tun interface */ + struct in_addr addr; + struct in_addr dstaddr; + struct in_addr netmask; + int addrs; /* Number of allocated IP addresses */ + int routes; /* One if we allocated an automatic route */ + char devname[IFNAMSIZ]; /* Name of the tun device */ + int (*cb_ind) (struct tun_t * tun, void *pack, unsigned len); }; - extern int tun_new(struct tun_t **tun); extern int tun_free(struct tun_t *tun); extern int tun_decaps(struct tun_t *this); @@ -58,17 +56,16 @@ extern int tun_encaps(struct tun_t *tun, void *pack, unsigned len); extern int tun_addaddr(struct tun_t *this, struct in_addr *addr, struct in_addr *dstaddr, struct in_addr *netmask); - -extern int tun_setaddr(struct tun_t *this, struct in_addr *our_adr, +extern int tun_setaddr(struct tun_t *this, struct in_addr *our_adr, struct in_addr *his_adr, struct in_addr *net_mask); -int tun_addroute(struct tun_t *this, struct in_addr *dst, +int tun_addroute(struct tun_t *this, struct in_addr *dst, struct in_addr *gateway, struct in_addr *mask); -extern int tun_set_cb_ind(struct tun_t *this, - int (*cb_ind) (struct tun_t *tun, void *pack, unsigned len)); - +extern int tun_set_cb_ind(struct tun_t *this, + int (*cb_ind) (struct tun_t * tun, void *pack, + unsigned len)); -extern int tun_runscript(struct tun_t *tun, char* script); +extern int tun_runscript(struct tun_t *tun, char *script); -#endif /* !_TUN_H */ +#endif /* !_TUN_H */ |