| 1 | #ifndef netlink_h |
| 2 | #define netlink_h |
| 3 | |
| 4 | #include "ipaddr.h" |
| 5 | |
| 6 | #define DEFAULT_BUFSIZE 2048 |
| 7 | #define DEFAULT_MTU 1000 |
| 8 | #define ICMP_BUFSIZE 1024 |
| 9 | |
| 10 | struct netlink; |
| 11 | |
| 12 | struct netlink_client { |
| 13 | closure_t cl; |
| 14 | struct netlink_if ops; |
| 15 | struct netlink *nst; |
| 16 | struct subnet_list networks; |
| 17 | netlink_deliver_fn *deliver; |
| 18 | void *dst; |
| 19 | string_t name; |
| 20 | uint32_t link_quality; |
| 21 | uint32_t options; |
| 22 | struct netlink_client *next; |
| 23 | }; |
| 24 | |
| 25 | struct netlink_route { |
| 26 | struct subnet net; |
| 27 | bool_t hard; |
| 28 | bool_t allow_route; |
| 29 | bool_t up; |
| 30 | bool_t kup; |
| 31 | uint32_t quality; /* provided by client */ |
| 32 | uint32_t outcount; |
| 33 | struct netlink_client *c; |
| 34 | }; |
| 35 | |
| 36 | typedef bool_t netlink_route_fn(void *cst, struct netlink_route *route); |
| 37 | |
| 38 | /* Netlink provides one function to the device driver, to call to deliver |
| 39 | a packet from the device. The device driver provides one function to |
| 40 | netlink, for it to call to deliver a packet to the device. */ |
| 41 | |
| 42 | struct netlink { |
| 43 | closure_t cl; |
| 44 | void *dst; /* Pointer to host interface state */ |
| 45 | string_t name; |
| 46 | uint32_t max_start_pad; |
| 47 | uint32_t max_end_pad; |
| 48 | struct subnet_list networks; |
| 49 | struct subnet_list exclude_remote_networks; |
| 50 | uint32_t secnet_address; /* our own address, or the address of the |
| 51 | other end of a point-to-point link */ |
| 52 | bool_t ptp; |
| 53 | uint32_t mtu; |
| 54 | struct netlink_client *clients; |
| 55 | netlink_deliver_fn *deliver_to_host; /* Provided by driver */ |
| 56 | netlink_route_fn *set_route; /* Provided by driver */ |
| 57 | struct buffer_if icmp; /* Buffer for assembly of outgoing ICMP */ |
| 58 | uint32_t n_routes; /* How many routes do we know about? */ |
| 59 | struct netlink_route *routes; |
| 60 | uint32_t outcount; /* Packets sent to host */ |
| 61 | uint32_t localcount; /* Packets sent to secnet */ |
| 62 | }; |
| 63 | |
| 64 | extern netlink_deliver_fn *netlink_init(struct netlink *st, |
| 65 | void *dst, struct cloc loc, |
| 66 | dict_t *dict, string_t description, |
| 67 | netlink_route_fn *set_route, |
| 68 | netlink_deliver_fn *to_host); |
| 69 | |
| 70 | #endif /* netlink_h */ |