1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Copyright (C) B.A.T.M.A.N. contributors: |
3 | * |
4 | * Marek Lindner, Simon Wunderlich |
5 | */ |
6 | |
7 | #ifndef _NET_BATMAN_ADV_SEND_H_ |
8 | #define _NET_BATMAN_ADV_SEND_H_ |
9 | |
10 | #include "main.h" |
11 | |
12 | #include <linux/compiler.h> |
13 | #include <linux/skbuff.h> |
14 | #include <linux/spinlock.h> |
15 | #include <linux/types.h> |
16 | #include <uapi/linux/batadv_packet.h> |
17 | |
18 | void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet, |
19 | bool dropped); |
20 | struct batadv_forw_packet * |
21 | batadv_forw_packet_alloc(struct batadv_hard_iface *if_incoming, |
22 | struct batadv_hard_iface *if_outgoing, |
23 | atomic_t *queue_left, |
24 | struct batadv_priv *bat_priv, |
25 | struct sk_buff *skb); |
26 | bool batadv_forw_packet_steal(struct batadv_forw_packet *packet, spinlock_t *l); |
27 | void batadv_forw_packet_ogmv1_queue(struct batadv_priv *bat_priv, |
28 | struct batadv_forw_packet *forw_packet, |
29 | unsigned long send_time); |
30 | bool batadv_forw_packet_is_rebroadcast(struct batadv_forw_packet *forw_packet); |
31 | |
32 | int batadv_send_skb_to_orig(struct sk_buff *skb, |
33 | struct batadv_orig_node *orig_node, |
34 | struct batadv_hard_iface *recv_if); |
35 | int batadv_send_skb_packet(struct sk_buff *skb, |
36 | struct batadv_hard_iface *hard_iface, |
37 | const u8 *dst_addr); |
38 | int batadv_send_broadcast_skb(struct sk_buff *skb, |
39 | struct batadv_hard_iface *hard_iface); |
40 | int batadv_send_unicast_skb(struct sk_buff *skb, |
41 | struct batadv_neigh_node *neigh_node); |
42 | int batadv_forw_bcast_packet(struct batadv_priv *bat_priv, |
43 | struct sk_buff *skb, |
44 | unsigned long delay, |
45 | bool own_packet); |
46 | void batadv_send_bcast_packet(struct batadv_priv *bat_priv, |
47 | struct sk_buff *skb, |
48 | unsigned long delay, |
49 | bool own_packet); |
50 | void |
51 | batadv_purge_outstanding_packets(struct batadv_priv *bat_priv, |
52 | const struct batadv_hard_iface *hard_iface); |
53 | bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv, |
54 | struct sk_buff *skb, |
55 | struct batadv_orig_node *orig_node, |
56 | int packet_subtype); |
57 | int batadv_send_skb_unicast(struct batadv_priv *bat_priv, |
58 | struct sk_buff *skb, int packet_type, |
59 | int packet_subtype, |
60 | struct batadv_orig_node *orig_node, |
61 | unsigned short vid); |
62 | int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv, |
63 | struct sk_buff *skb, int packet_type, |
64 | int packet_subtype, u8 *dst_hint, |
65 | unsigned short vid); |
66 | int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb, |
67 | unsigned short vid); |
68 | |
69 | /** |
70 | * batadv_send_skb_via_tt() - send an skb via TT lookup |
71 | * @bat_priv: the bat priv with all the soft interface information |
72 | * @skb: the payload to send |
73 | * @dst_hint: can be used to override the destination contained in the skb |
74 | * @vid: the vid to be used to search the translation table |
75 | * |
76 | * Look up the recipient node for the destination address in the ethernet |
77 | * header via the translation table. Wrap the given skb into a batman-adv |
78 | * unicast header. Then send this frame to the according destination node. |
79 | * |
80 | * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
81 | */ |
82 | static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv, |
83 | struct sk_buff *skb, u8 *dst_hint, |
84 | unsigned short vid) |
85 | { |
86 | return batadv_send_skb_via_tt_generic(bat_priv, skb, packet_type: BATADV_UNICAST, packet_subtype: 0, |
87 | dst_hint, vid); |
88 | } |
89 | |
90 | /** |
91 | * batadv_send_skb_via_tt_4addr() - send an skb via TT lookup |
92 | * @bat_priv: the bat priv with all the soft interface information |
93 | * @skb: the payload to send |
94 | * @packet_subtype: the unicast 4addr packet subtype to use |
95 | * @dst_hint: can be used to override the destination contained in the skb |
96 | * @vid: the vid to be used to search the translation table |
97 | * |
98 | * Look up the recipient node for the destination address in the ethernet |
99 | * header via the translation table. Wrap the given skb into a batman-adv |
100 | * unicast-4addr header. Then send this frame to the according destination |
101 | * node. |
102 | * |
103 | * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
104 | */ |
105 | static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv, |
106 | struct sk_buff *skb, |
107 | int packet_subtype, |
108 | u8 *dst_hint, |
109 | unsigned short vid) |
110 | { |
111 | return batadv_send_skb_via_tt_generic(bat_priv, skb, |
112 | packet_type: BATADV_UNICAST_4ADDR, |
113 | packet_subtype, dst_hint, vid); |
114 | } |
115 | |
116 | #endif /* _NET_BATMAN_ADV_SEND_H_ */ |
117 | |