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head/sys/net/if_gre.h
Show First 20 Lines • Show All 47 Lines • ▼ Show 20 Lines | #define GRE_FLAGS_MASK (GRE_FLAGS_CP|GRE_FLAGS_KP|GRE_FLAGS_SP) | ||||
uint32_t gre_opts[0]; /* optional fields */ | uint32_t gre_opts[0]; /* optional fields */ | ||||
} __packed; | } __packed; | ||||
#ifdef INET | #ifdef INET | ||||
struct greip { | struct greip { | ||||
struct ip gi_ip; | struct ip gi_ip; | ||||
struct grehdr gi_gre; | struct grehdr gi_gre; | ||||
} __packed; | } __packed; | ||||
#endif | |||||
struct greudp { | |||||
struct ip gi_ip; | |||||
struct udphdr gi_udp; | |||||
struct grehdr gi_gre; | |||||
} __packed; | |||||
#endif /* INET */ | |||||
#ifdef INET6 | #ifdef INET6 | ||||
struct greip6 { | struct greip6 { | ||||
struct ip6_hdr gi6_ip6; | struct ip6_hdr gi6_ip6; | ||||
struct grehdr gi6_gre; | struct grehdr gi6_gre; | ||||
} __packed; | } __packed; | ||||
#endif | |||||
struct greudp6 { | |||||
struct ip6_hdr gi6_ip6; | |||||
struct udphdr gi6_udp; | |||||
struct grehdr gi6_gre; | |||||
} __packed; | |||||
#endif /* INET6 */ | |||||
CK_LIST_HEAD(gre_list, gre_softc); | |||||
CK_LIST_HEAD(gre_sockets, gre_socket); | |||||
struct gre_socket { | |||||
struct socket *so; | |||||
struct gre_list list; | |||||
CK_LIST_ENTRY(gre_socket) chain; | |||||
struct epoch_context epoch_ctx; | |||||
}; | |||||
struct gre_softc { | struct gre_softc { | ||||
struct ifnet *gre_ifp; | struct ifnet *gre_ifp; | ||||
int gre_family; /* AF of delivery header */ | int gre_family; /* AF of delivery header */ | ||||
uint32_t gre_iseq; | uint32_t gre_iseq; | ||||
uint32_t gre_oseq; | uint32_t gre_oseq; | ||||
uint32_t gre_key; | uint32_t gre_key; | ||||
uint32_t gre_options; | uint32_t gre_options; | ||||
uint32_t gre_csumflags; | |||||
uint32_t gre_port; | |||||
u_int gre_fibnum; | u_int gre_fibnum; | ||||
u_int gre_hlen; /* header size */ | u_int gre_hlen; /* header size */ | ||||
union { | union { | ||||
void *hdr; | void *hdr; | ||||
#ifdef INET | #ifdef INET | ||||
struct greip *gihdr; | struct greip *iphdr; | ||||
struct greudp *udphdr; | |||||
#endif | #endif | ||||
#ifdef INET6 | #ifdef INET6 | ||||
struct greip6 *gi6hdr; | struct greip6 *ip6hdr; | ||||
struct greudp6 *udp6hdr; | |||||
#endif | #endif | ||||
} gre_uhdr; | } gre_uhdr; | ||||
struct gre_socket *gre_so; | |||||
CK_LIST_ENTRY(gre_softc) chain; | CK_LIST_ENTRY(gre_softc) chain; | ||||
CK_LIST_ENTRY(gre_softc) srchash; | CK_LIST_ENTRY(gre_softc) srchash; | ||||
}; | }; | ||||
CK_LIST_HEAD(gre_list, gre_softc); | |||||
MALLOC_DECLARE(M_GRE); | MALLOC_DECLARE(M_GRE); | ||||
#ifndef GRE_HASH_SIZE | #ifndef GRE_HASH_SIZE | ||||
#define GRE_HASH_SIZE (1 << 4) | #define GRE_HASH_SIZE (1 << 4) | ||||
#endif | #endif | ||||
#define GRE2IFP(sc) ((sc)->gre_ifp) | #define GRE2IFP(sc) ((sc)->gre_ifp) | ||||
#define GRE_RLOCK_TRACKER struct epoch_tracker gre_et | #define GRE_RLOCK_TRACKER struct epoch_tracker gre_et | ||||
#define GRE_RLOCK() epoch_enter_preempt(net_epoch_preempt, &gre_et) | #define GRE_RLOCK() epoch_enter_preempt(net_epoch_preempt, &gre_et) | ||||
#define GRE_RUNLOCK() epoch_exit_preempt(net_epoch_preempt, &gre_et) | #define GRE_RUNLOCK() epoch_exit_preempt(net_epoch_preempt, &gre_et) | ||||
#define GRE_WAIT() epoch_wait_preempt(net_epoch_preempt) | #define GRE_WAIT() epoch_wait_preempt(net_epoch_preempt) | ||||
#define gre_hdr gre_uhdr.hdr | #define gre_hdr gre_uhdr.hdr | ||||
#define gre_gihdr gre_uhdr.gihdr | #define gre_iphdr gre_uhdr.iphdr | ||||
#define gre_gi6hdr gre_uhdr.gi6hdr | #define gre_ip6hdr gre_uhdr.ip6hdr | ||||
#define gre_oip gre_gihdr->gi_ip | #define gre_udphdr gre_uhdr.udphdr | ||||
#define gre_oip6 gre_gi6hdr->gi6_ip6 | #define gre_udp6hdr gre_uhdr.udp6hdr | ||||
#define gre_oip gre_iphdr->gi_ip | |||||
#define gre_udp gre_udphdr->gi_udp | |||||
#define gre_oip6 gre_ip6hdr->gi6_ip6 | |||||
#define gre_udp6 gre_udp6hdr->gi6_udp | |||||
struct gre_list *gre_hashinit(void); | struct gre_list *gre_hashinit(void); | ||||
void gre_hashdestroy(struct gre_list *); | void gre_hashdestroy(struct gre_list *); | ||||
int gre_input(struct mbuf *, int, int, void *); | int gre_input(struct mbuf *, int, int, void *); | ||||
void gre_updatehdr(struct gre_softc *, struct grehdr *); | void gre_update_hdr(struct gre_softc *, struct grehdr *); | ||||
void gre_update_udphdr(struct gre_softc *, struct udphdr *, uint16_t); | |||||
void gre_sofree(epoch_context_t); | |||||
void in_gre_init(void); | void in_gre_init(void); | ||||
void in_gre_uninit(void); | void in_gre_uninit(void); | ||||
void in_gre_setopts(struct gre_softc *, u_long, uint32_t); | int in_gre_setopts(struct gre_softc *, u_long, uint32_t); | ||||
int in_gre_ioctl(struct gre_softc *, u_long, caddr_t); | int in_gre_ioctl(struct gre_softc *, u_long, caddr_t); | ||||
int in_gre_output(struct mbuf *, int, int); | int in_gre_output(struct mbuf *, int, int); | ||||
void in6_gre_init(void); | void in6_gre_init(void); | ||||
void in6_gre_uninit(void); | void in6_gre_uninit(void); | ||||
void in6_gre_setopts(struct gre_softc *, u_long, uint32_t); | int in6_gre_setopts(struct gre_softc *, u_long, uint32_t); | ||||
int in6_gre_ioctl(struct gre_softc *, u_long, caddr_t); | int in6_gre_ioctl(struct gre_softc *, u_long, caddr_t); | ||||
int in6_gre_output(struct mbuf *, int, int); | int in6_gre_output(struct mbuf *, int, int, uint32_t); | ||||
/* | /* | ||||
* CISCO uses special type for GRE tunnel created as part of WCCP | * CISCO uses special type for GRE tunnel created as part of WCCP | ||||
* connection, while in fact those packets are just IPv4 encapsulated | * connection, while in fact those packets are just IPv4 encapsulated | ||||
* into GRE. | * into GRE. | ||||
*/ | */ | ||||
#define ETHERTYPE_WCCP 0x883E | #define ETHERTYPE_WCCP 0x883E | ||||
#endif /* _KERNEL */ | #endif /* _KERNEL */ | ||||
#define GRESADDRS _IOW('i', 101, struct ifreq) | #define GRESADDRS _IOW('i', 101, struct ifreq) | ||||
#define GRESADDRD _IOW('i', 102, struct ifreq) | #define GRESADDRD _IOW('i', 102, struct ifreq) | ||||
#define GREGADDRS _IOWR('i', 103, struct ifreq) | #define GREGADDRS _IOWR('i', 103, struct ifreq) | ||||
#define GREGADDRD _IOWR('i', 104, struct ifreq) | #define GREGADDRD _IOWR('i', 104, struct ifreq) | ||||
#define GRESPROTO _IOW('i' , 105, struct ifreq) | #define GRESPROTO _IOW('i' , 105, struct ifreq) | ||||
#define GREGPROTO _IOWR('i', 106, struct ifreq) | #define GREGPROTO _IOWR('i', 106, struct ifreq) | ||||
#define GREGKEY _IOWR('i', 107, struct ifreq) | #define GREGKEY _IOWR('i', 107, struct ifreq) | ||||
#define GRESKEY _IOW('i', 108, struct ifreq) | #define GRESKEY _IOW('i', 108, struct ifreq) | ||||
#define GREGOPTS _IOWR('i', 109, struct ifreq) | #define GREGOPTS _IOWR('i', 109, struct ifreq) | ||||
#define GRESOPTS _IOW('i', 110, struct ifreq) | #define GRESOPTS _IOW('i', 110, struct ifreq) | ||||
#define GREGPORT _IOWR('i', 111, struct ifreq) | |||||
#define GRESPORT _IOW('i', 112, struct ifreq) | |||||
/* GRE-in-UDP encapsulation destination port as defined in RFC8086 */ | |||||
#define GRE_UDPPORT 4754 | |||||
#define GRE_ENABLE_CSUM 0x0001 | #define GRE_ENABLE_CSUM 0x0001 | ||||
#define GRE_ENABLE_SEQ 0x0002 | #define GRE_ENABLE_SEQ 0x0002 | ||||
#define GRE_OPTMASK (GRE_ENABLE_CSUM|GRE_ENABLE_SEQ) | #define GRE_UDPENCAP 0x0004 | ||||
#define GRE_OPTMASK (GRE_ENABLE_CSUM|GRE_ENABLE_SEQ|GRE_UDPENCAP) | |||||
#endif /* _NET_IF_GRE_H_ */ | #endif /* _NET_IF_GRE_H_ */ |