2 * EIGRP General Sending and Receiving of EIGRP Packets.
3 * Copyright (C) 2013-2016
15 * This file is part of GNU Zebra.
17 * GNU Zebra is free software; you can redistribute it and/or modify it
18 * under the terms of the GNU General Public License as published by the
19 * Free Software Foundation; either version 2, or (at your option) any
22 * GNU Zebra is distributed in the hope that it will be useful, but
23 * WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 * General Public License for more details.
27 * You should have received a copy of the GNU General Public License along
28 * with this program; see the file COPYING; if not, write to the Free Software
29 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
32 #ifndef _ZEBRA_EIGRP_PACKET_H
33 #define _ZEBRA_EIGRP_PACKET_H
36 extern int eigrp_read(struct thread
*);
37 extern int eigrp_write(struct thread
*);
39 extern struct eigrp_packet
*eigrp_packet_new(size_t size
,
40 struct eigrp_neighbor
*nbr
);
41 extern struct eigrp_packet
*eigrp_packet_duplicate(struct eigrp_packet
*old
,
42 struct eigrp_neighbor
*nbr
);
43 extern void eigrp_packet_free(struct eigrp_packet
*ep
);
44 extern void eigrp_packet_delete(struct eigrp_interface
*ei
);
45 extern void eigrp_packet_header_init(int type
, struct eigrp
*eigrp
,
46 struct stream
*s
, uint32_t flags
,
47 uint32_t sequence
, uint32_t ack
);
48 extern void eigrp_packet_checksum(struct eigrp_interface
*ei
, struct stream
*s
,
51 extern struct eigrp_fifo
*eigrp_fifo_new(void);
52 extern struct eigrp_packet
*eigrp_fifo_next(struct eigrp_fifo
*fifo
);
53 extern struct eigrp_packet
*eigrp_fifo_pop(struct eigrp_fifo
*fifo
);
54 extern void eigrp_fifo_push(struct eigrp_fifo
*fifo
, struct eigrp_packet
*ep
);
55 extern void eigrp_fifo_free(struct eigrp_fifo
*fifo
);
56 extern void eigrp_fifo_reset(struct eigrp_fifo
*fifo
);
58 extern void eigrp_send_packet_reliably(struct eigrp_neighbor
*nbr
);
60 extern struct TLV_IPv4_Internal_type
*eigrp_read_ipv4_tlv(struct stream
*s
);
62 eigrp_add_internalTLV_to_stream(struct stream
*s
,
63 struct eigrp_prefix_descriptor
*pe
);
64 extern uint16_t eigrp_add_authTLV_MD5_to_stream(struct stream
*s
,
65 struct eigrp_interface
*ei
);
66 extern uint16_t eigrp_add_authTLV_SHA256_to_stream(struct stream
*s
,
67 struct eigrp_interface
*ei
);
69 extern int eigrp_unack_packet_retrans(struct thread
*thread
);
70 extern int eigrp_unack_multicast_packet_retrans(struct thread
*thread
);
73 * untill there is reason to have their own header, these externs are found in
76 extern void eigrp_sw_version_initialize(void);
77 extern void eigrp_hello_send(struct eigrp_interface
*ei
, uint8_t flags
,
78 struct in_addr
*nbr_addr
);
79 extern void eigrp_hello_send_ack(struct eigrp_neighbor
*nbr
);
80 extern void eigrp_hello_receive(struct eigrp
*eigrp
, struct ip
*iph
,
81 struct eigrp_header
*eigrph
, struct stream
*s
,
82 struct eigrp_interface
*ei
, int size
);
83 extern int eigrp_hello_timer(struct thread
*thread
);
86 * These externs are found in eigrp_update.c
88 extern bool eigrp_update_prefix_apply(struct eigrp
*eigrp
,
89 struct eigrp_interface
*ei
, int in
,
90 struct prefix
*prefix
);
91 extern void eigrp_update_send(struct eigrp_interface
*ei
);
92 extern void eigrp_update_receive(struct eigrp
*eigrp
, struct ip
*iph
,
93 struct eigrp_header
*eigrph
, struct stream
*s
,
94 struct eigrp_interface
*ei
, int size
);
95 extern void eigrp_update_send_all(struct eigrp
*eigrp
,
96 struct eigrp_interface
*exception
);
97 extern void eigrp_update_send_init(struct eigrp_neighbor
*nbr
);
98 extern void eigrp_update_send_EOT(struct eigrp_neighbor
*nbr
);
99 extern int eigrp_update_send_GR_thread(struct thread
*thread
);
100 extern void eigrp_update_send_GR(struct eigrp_neighbor
*nbr
,
101 enum GR_type gr_type
, struct vty
*vty
);
102 extern void eigrp_update_send_interface_GR(struct eigrp_interface
*ei
,
103 enum GR_type gr_type
,
105 extern void eigrp_update_send_process_GR(struct eigrp
*eigrp
,
106 enum GR_type gr_type
, struct vty
*vty
);
109 * These externs are found in eigrp_query.c
112 extern void eigrp_send_query(struct eigrp_interface
*ei
);
113 extern void eigrp_query_receive(struct eigrp
*eigrp
, struct ip
*iph
,
114 struct eigrp_header
*eigrph
, struct stream
*s
,
115 struct eigrp_interface
*ei
, int size
);
116 extern uint32_t eigrp_query_send_all(struct eigrp
*eigrp
);
119 * These externs are found in eigrp_reply.c
121 extern void eigrp_send_reply(struct eigrp_neighbor
*nbr
,
122 struct eigrp_prefix_descriptor
*pe
);
123 extern void eigrp_reply_receive(struct eigrp
*eigrp
, struct ip
*iph
,
124 struct eigrp_header
*eigrph
, struct stream
*s
,
125 struct eigrp_interface
*ei
, int size
);
128 * These externs are found in eigrp_siaquery.c
130 extern void eigrp_send_siaquery(struct eigrp_neighbor
*nbr
,
131 struct eigrp_prefix_descriptor
*pe
);
132 extern void eigrp_siaquery_receive(struct eigrp
*eigrp
, struct ip
*iph
,
133 struct eigrp_header
*eigrph
,
134 struct stream
*s
, struct eigrp_interface
*ei
,
138 * These externs are found in eigrp_siareply.c
140 extern void eigrp_send_siareply(struct eigrp_neighbor
*nbr
,
141 struct eigrp_prefix_descriptor
*pe
);
142 extern void eigrp_siareply_receive(struct eigrp
*eigrp
, struct ip
*iph
,
143 struct eigrp_header
*eigrph
,
144 struct stream
*s
, struct eigrp_interface
*ei
,
147 extern struct TLV_MD5_Authentication_Type
*eigrp_authTLV_MD5_new(void);
148 extern void eigrp_authTLV_MD5_free(struct TLV_MD5_Authentication_Type
*authTLV
);
149 extern struct TLV_SHA256_Authentication_Type
*eigrp_authTLV_SHA256_new(void);
151 eigrp_authTLV_SHA256_free(struct TLV_SHA256_Authentication_Type
*authTLV
);
153 extern int eigrp_make_md5_digest(struct eigrp_interface
*ei
, struct stream
*s
,
155 extern int eigrp_check_md5_digest(struct stream
*s
,
156 struct TLV_MD5_Authentication_Type
*authTLV
,
157 struct eigrp_neighbor
*nbr
, uint8_t flags
);
158 extern int eigrp_make_sha256_digest(struct eigrp_interface
*ei
,
159 struct stream
*s
, uint8_t flags
);
161 eigrp_check_sha256_digest(struct stream
*s
,
162 struct TLV_SHA256_Authentication_Type
*authTLV
,
163 struct eigrp_neighbor
*nbr
, uint8_t flags
);
167 eigrp_IPv4_InternalTLV_free(struct TLV_IPv4_Internal_type
*IPv4_InternalTLV
);
169 extern struct TLV_Sequence_Type
*eigrp_SequenceTLV_new(void);
171 extern const struct message eigrp_packet_type_str
[];
172 extern const size_t eigrp_packet_type_str_max
;
174 #endif /* _ZEBRA_EIGRP_PACKET_H */