6 #define DEFAULT_BUFSIZE 2048
7 #define DEFAULT_MTU 1000
8 #define ICMP_BUFSIZE 1024
12 struct netlink_client
{
14 struct netlink_if ops
;
16 struct ipset
*networks
;
17 struct subnet_list
*subnets
; /* Same information as 'networks' */
18 uint32_t priority
; /* Higher priority clients have their networks
19 checked first during routing. This allows
20 things like laptops to supersede whole
22 netlink_deliver_fn
*deliver
;
25 uint32_t link_quality
;
29 bool_t up
; /* Should these routes exist in the kernel? */
30 bool_t kup
; /* Do these routes exist in the kernel? */
31 struct netlink_client
*next
;
34 typedef bool_t
netlink_route_fn(void *cst
, struct netlink_client
*routes
);
36 /* Netlink provides one function to the device driver, to call to deliver
37 a packet from the device. The device driver provides one function to
38 netlink, for it to call to deliver a packet to the device. */
42 void *dst
; /* Pointer to host interface state */
44 int32_t max_start_pad
;
46 struct ipset
*networks
; /* Local networks */
47 struct subnet_list
*subnets
; /* Same as networks, for display */
48 struct ipset
*remote_networks
; /* Allowable remote networks */
49 uint32_t secnet_address
; /* our own address, or the address of the
50 other end of a point-to-point link */
53 struct netlink_client
*clients
; /* Linked list of clients */
54 struct netlink_client
**routes
; /* Array of clients, sorted by priority */
56 netlink_deliver_fn
*deliver_to_host
; /* Provided by driver */
57 netlink_route_fn
*set_routes
; /* Provided by driver */
58 struct buffer_if icmp
; /* Buffer for assembly of outgoing ICMP */
59 uint32_t outcount
; /* Packets sent to host */
60 uint32_t localcount
; /* Packets sent to secnet */
63 extern netlink_deliver_fn
*netlink_init(struct netlink
*st
,
64 void *dst
, struct cloc loc
,
65 dict_t
*dict
, cstring_t description
,
66 netlink_route_fn
*set_routes
,
67 netlink_deliver_fn
*to_host
);
69 #endif /* netlink_h */