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