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 /* options field in 'struct netlink_client' */
35 #define OPT_SOFTROUTE 1
36 #define OPT_ALLOWROUTE 2
38 typedef bool_t netlink_route_fn(void *cst, struct netlink_client *routes);
40 /* Netlink provides one function to the device driver, to call to deliver
41 a packet from the device. The device driver provides one function to
42 netlink, for it to call to deliver a packet to the device. */
46 void *dst; /* Pointer to host interface state */
48 int32_t max_start_pad;
49 struct ipset *networks; /* Local networks */
50 struct subnet_list *subnets; /* Same as networks, for display */
51 struct ipset *remote_networks; /* Allowable remote networks */
52 uint32_t secnet_address; /* our own address, or the address of the
53 other end of a point-to-point link */
56 struct netlink_client *clients; /* Linked list of clients */
57 struct netlink_client **routes; /* Array of clients, sorted by priority */
59 netlink_deliver_fn *deliver_to_host; /* Provided by driver */
60 netlink_route_fn *set_routes; /* Provided by driver */
61 struct buffer_if icmp; /* Buffer for assembly of outgoing ICMP */
62 uint32_t outcount; /* Packets sent to host */
63 uint32_t localcount; /* Packets sent to secnet */
66 extern netlink_deliver_fn *netlink_init(struct netlink *st,
67 void *dst, struct cloc loc,
68 dict_t *dict, cstring_t description,
69 netlink_route_fn *set_routes,
70 netlink_deliver_fn *to_host);
72 #endif /* netlink_h */