#ifndef DLIL_H
#define DLIL_H
#if __STDC__
struct ifnet;
struct mbuf;
struct ether_header;
#endif
#define DLIL_LAST_FILTER -1
#define DLIL_NULL_FILTER -2
#define DLIL_WAIT_FOR_FREE -2
#define DLIL_BLUEBOX 1
#include <net/if.h>
#include <net/if_var.h>
#include <sys/kern_event.h>
enum {
BPF_TAP_DISABLE,
BPF_TAP_INPUT,
BPF_TAP_OUTPUT,
BPF_TAP_INPUT_OUTPUT
};
struct dl_tag_attr_str {
u_long dl_tag;
short if_flags;
short if_unit;
u_long if_family;
u_long protocol_family;
};
struct dlil_pr_flt_str {
caddr_t cookie;
int (*filter_dl_input)(caddr_t cookie,
struct mbuf **m,
char **frame_header,
struct ifnet **ifp);
int (*filter_dl_output)(caddr_t cookie,
struct mbuf **m,
struct ifnet **ifp,
struct sockaddr **dest,
char *dest_linkaddr,
char *frame_type);
int (*filter_dl_event)(caddr_t cookie,
struct kern_event_msg *event_msg);
int (*filter_dl_ioctl)(caddr_t cookie,
struct ifnet *ifp,
u_long ioctl_cmd,
caddr_t ioctl_arg);
int (*filter_detach)(caddr_t cookie);
u_long reserved[2];
};
struct dlil_if_flt_str {
caddr_t cookie;
int (*filter_if_input)(caddr_t cookie,
struct ifnet **ifnet_ptr,
struct mbuf **mbuf_ptr,
char **frame_ptr);
int (*filter_if_event)(caddr_t cookie,
struct ifnet **ifnet_ptr,
struct kern_event_msg **event_msg_ptr);
int (*filter_if_output)(caddr_t cookie,
struct ifnet **ifnet_ptr,
struct mbuf **mbuf_ptr);
int (*filter_if_ioctl)(caddr_t cookie,
struct ifnet *ifnet_ptr,
u_long ioctl_code_ptr,
caddr_t ioctl_arg_ptr);
int (*filter_if_free)(caddr_t cookie,
struct ifnet *ifnet_ptr);
int (*filter_detach)(caddr_t cookie);
u_long reserved[2];
};
#define DLIL_PR_FILTER 1
#define DLIL_IF_FILTER 2
typedef int (*dl_input_func)(struct mbuf *m, char *frame_header,
struct ifnet *ifp, u_long dl_tag, int sync_ok);
typedef int (*dl_pre_output_func)(struct ifnet *ifp,
struct mbuf **m,
struct sockaddr *dest,
caddr_t route_entry,
char *frame_type,
char *dst_addr,
u_long dl_tag);
typedef int (*dl_event_func)(struct kern_event_msg *event,
u_long dl_tag);
typedef int (*dl_offer_func)(struct mbuf *m, char *frame_header);
typedef int (*dl_ioctl_func)(u_long dl_tag,
struct ifnet *ifp,
u_long ioctl_cmd,
caddr_t ioctl_arg);
struct dlil_filterq_entry {
TAILQ_ENTRY(dlil_filterq_entry) que;
u_long filter_id;
int type;
union {
struct dlil_if_flt_str if_filter;
struct dlil_pr_flt_str pr_filter;
} variants;
};
TAILQ_HEAD(dlil_filterq_head, dlil_filterq_entry);
struct if_proto {
TAILQ_ENTRY(if_proto) next;
u_long dl_tag;
struct dlil_filterq_head pr_flt_head;
struct ifnet *ifp;
dl_input_func dl_input;
dl_pre_output_func dl_pre_output;
dl_event_func dl_event;
dl_offer_func dl_offer;
dl_ioctl_func dl_ioctl;
u_long protocol_family;
u_long reserved[4];
};
TAILQ_HEAD(dlil_proto_head, if_proto);
struct dlil_tag_list_entry {
TAILQ_ENTRY(dlil_tag_list_entry) next;
struct ifnet *ifp;
u_long dl_tag;
};
#define DLIL_DESC_RAW 1
#define DLIL_DESC_802_2 2
#define DLIL_DESC_802_2_SNAP 3
#define DLIL_DESC_ETYPE2 4
#define DLIL_DESC_SAP 5
#define DLIL_DESC_SNAP 6
struct dlil_demux_desc {
TAILQ_ENTRY(dlil_demux_desc) next;
int type;
u_char *native_type;
union {
struct {
u_long proto_id_length;
u_char *proto_id;
u_char *proto_id_mask;
} bitmask;
struct {
u_char dsap;
u_char ssap;
u_char control_code;
u_char pad;
} desc_802_2;
struct {
u_char dsap;
u_char ssap;
u_char control_code;
u_char org[3];
u_short protocol_type;
} desc_802_2_SNAP;
u_int32_t native_type_length;
} variants;
};
TAILQ_HEAD(ddesc_head_str, dlil_demux_desc);
struct dlil_proto_reg_str {
struct ddesc_head_str demux_desc_head;
u_long interface_family;
u_long protocol_family;
short unit_number;
int default_proto;
dl_input_func input;
dl_pre_output_func pre_output;
dl_event_func event;
dl_offer_func offer;
dl_ioctl_func ioctl;
u_long reserved[4];
};
int dlil_attach_interface_filter(struct ifnet *ifnet_ptr,
struct dlil_if_flt_str *interface_filter,
u_long *filter_id,
int insertion_point);
int
dlil_input(struct ifnet *ifp, struct mbuf *m_head, struct mbuf *m_tail);
int
dlil_output(u_long dl_tag,
struct mbuf *m,
caddr_t route,
struct sockaddr *dest,
int raw);
int
dlil_ioctl(u_long proto_family,
struct ifnet *ifp,
u_long ioctl_code,
caddr_t ioctl_arg);
int
dlil_attach_protocol(struct dlil_proto_reg_str *proto,
u_long *dl_tag);
int
dlil_detach_protocol(u_long dl_tag);
int
dlil_if_attach(struct ifnet *ifp);
int
dlil_attach_protocol_filter(u_long dl_tag,
struct dlil_pr_flt_str *proto_filter,
u_long *filter_id,
int insertion_point);
int
dlil_detach_filter(u_long filter_id);
struct dlil_ifmod_reg_str {
int (*add_if)(struct ifnet *ifp);
int (*del_if)(struct ifnet *ifp);
int (*add_proto)(struct ddesc_head_str *demux_desc_head,
struct if_proto *proto, u_long dl_tag);
int (*del_proto)(struct if_proto *proto, u_long dl_tag);
int (*ifmod_ioctl)(struct ifnet *ifp, u_long ioctl_cmd, caddr_t data);
int (*shutdown)();
u_long reserved[4];
};
int dlil_reg_if_modules(u_long interface_family,
struct dlil_ifmod_reg_str *ifmod_reg);
int
dlil_inject_if_input(struct mbuf *m, char *frame_header, u_long from_id);
int
dlil_inject_pr_input(struct mbuf *m, char *frame_header, u_long from_id);
int
dlil_inject_pr_output(struct mbuf *m,
struct sockaddr *dest,
int raw,
char *frame_type,
char *dst_linkaddr,
u_long from_id);
int
dlil_inject_if_output(struct mbuf *m, u_long from_id);
int
dlil_find_dltag(u_long if_family, short unit, u_long proto_family, u_long *dl_tag);
int
dlil_event(struct ifnet *ifp, struct kern_event_msg *event);
int dlil_dereg_if_modules(u_long interface_family);
int
dlil_if_detach(struct ifnet *ifp);
#endif