| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 2 | /* Copyright (C) 2007-2019 B.A.T.M.A.N. contributors: |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 3 | * |
| 4 | * Marek Lindner, Simon Wunderlich |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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> |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 13 | #include <linux/skbuff.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 14 | #include <linux/spinlock.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <uapi/linux/batadv_packet.h> |
| 17 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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_add_bcast_packet_to_list(struct batadv_priv *bat_priv, |
| 43 | const struct sk_buff *skb, |
| 44 | unsigned long delay, |
| 45 | bool own_packet); |
| 46 | void |
| 47 | batadv_purge_outstanding_packets(struct batadv_priv *bat_priv, |
| 48 | const struct batadv_hard_iface *hard_iface); |
| 49 | bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv, |
| 50 | struct sk_buff *skb, |
| 51 | struct batadv_orig_node *orig_node, |
| 52 | int packet_subtype); |
| 53 | int batadv_send_skb_unicast(struct batadv_priv *bat_priv, |
| 54 | struct sk_buff *skb, int packet_type, |
| 55 | int packet_subtype, |
| 56 | struct batadv_orig_node *orig_node, |
| 57 | unsigned short vid); |
| 58 | int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv, |
| 59 | struct sk_buff *skb, int packet_type, |
| 60 | int packet_subtype, u8 *dst_hint, |
| 61 | unsigned short vid); |
| 62 | int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb, |
| 63 | unsigned short vid); |
| 64 | |
| 65 | /** |
| 66 | * batadv_send_skb_via_tt() - send an skb via TT lookup |
| 67 | * @bat_priv: the bat priv with all the soft interface information |
| 68 | * @skb: the payload to send |
| 69 | * @dst_hint: can be used to override the destination contained in the skb |
| 70 | * @vid: the vid to be used to search the translation table |
| 71 | * |
| 72 | * Look up the recipient node for the destination address in the ethernet |
| 73 | * header via the translation table. Wrap the given skb into a batman-adv |
| 74 | * unicast header. Then send this frame to the according destination node. |
| 75 | * |
| 76 | * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
| 77 | */ |
| 78 | static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv, |
| 79 | struct sk_buff *skb, u8 *dst_hint, |
| 80 | unsigned short vid) |
| 81 | { |
| 82 | return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0, |
| 83 | dst_hint, vid); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * batadv_send_skb_via_tt_4addr() - send an skb via TT lookup |
| 88 | * @bat_priv: the bat priv with all the soft interface information |
| 89 | * @skb: the payload to send |
| 90 | * @packet_subtype: the unicast 4addr packet subtype to use |
| 91 | * @dst_hint: can be used to override the destination contained in the skb |
| 92 | * @vid: the vid to be used to search the translation table |
| 93 | * |
| 94 | * Look up the recipient node for the destination address in the ethernet |
| 95 | * header via the translation table. Wrap the given skb into a batman-adv |
| 96 | * unicast-4addr header. Then send this frame to the according destination |
| 97 | * node. |
| 98 | * |
| 99 | * Return: NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise. |
| 100 | */ |
| 101 | static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv, |
| 102 | struct sk_buff *skb, |
| 103 | int packet_subtype, |
| 104 | u8 *dst_hint, |
| 105 | unsigned short vid) |
| 106 | { |
| 107 | return batadv_send_skb_via_tt_generic(bat_priv, skb, |
| 108 | BATADV_UNICAST_4ADDR, |
| 109 | packet_subtype, dst_hint, vid); |
| 110 | } |
| 111 | |
| 112 | #endif /* _NET_BATMAN_ADV_SEND_H_ */ |