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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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* BIRD -- OSPF
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*
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* (c) 1999--2004 Ondrej Filip <feela@network.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*
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*/
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#ifndef _BIRD_OSPF_PACKET_H_
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#define _BIRD_OSPF_PACKET_H_
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void ospf_pkt_fill_hdr(struct ospf_iface *ifa, void *buf, u8 h_type);
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unsigned ospf_pkt_maxsize(struct ospf_iface *ifa);
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int ospf_rx_hook(sock * sk, int size);
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void ospf_tx_hook(sock * sk);
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void ospf_err_hook(sock * sk, int err);
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void ospf_send_to(struct ospf_iface *ifa, ip_addr ip);
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void ospf_send_to_agt(struct ospf_iface *ifa, u8 state);
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void ospf_send_to_bdr(struct ospf_iface *ifa);
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static inline void ospf_send_to_all(struct ospf_iface *ifa)
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{ ospf_send_to(ifa, ifa->all_routers); }
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static inline void ospf_send_to_des(struct ospf_iface *ifa)
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{
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if (ipa_nonzero(ifa->des_routers))
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ospf_send_to(ifa, ifa->des_routers);
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else
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ospf_send_to_bdr(ifa);
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}
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static inline unsigned ospf_pkt_hdrlen(struct proto_ospf *po)
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{
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return ospf_is_v2(po) ?
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(sizeof(struct ospf_packet) + sizeof(union ospf_auth)) :
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sizeof(struct ospf_packet);
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}
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static inline void * ospf_tx_buffer(struct ospf_iface *ifa)
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{ return ifa->sk->tbuf; }
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static inline unsigned ospf_pkt_bufsize(struct ospf_iface *ifa)
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{
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/* Reserve buffer space for authentication footer */
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unsigned res_size = (ifa->autype == OSPF_AUTH_CRYPT) ? OSPF_AUTH_CRYPT_SIZE : 0;
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return ifa->sk->tbsize - res_size;
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}
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#endif /* _BIRD_OSPF_PACKET_H_ */
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