1 /* 1 /*
2 * net/tipc/udp_media.h: Include file for UDP 2 * net/tipc/udp_media.h: Include file for UDP bearer media
3 * 3 *
4 * Copyright (c) 1996-2006, 2013-2016, Ericsso 4 * Copyright (c) 1996-2006, 2013-2016, Ericsson AB
5 * Copyright (c) 2005, 2010-2011, Wind River S 5 * Copyright (c) 2005, 2010-2011, Wind River Systems
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8 * Redistribution and use in source and binary 8 * Redistribution and use in source and binary forms, with or without
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11 * 1. Redistributions of source code must reta 11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the 12 * notice, this list of conditions and the following disclaimer.
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17 * contributors may be used to endorse or p 17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior wri 18 * this software without specific prior written permission.
19 * 19 *
20 * Alternatively, this software may be distrib 20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation. 22 * Software Foundation.
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35 */ 35 */
36 36
37 #ifdef CONFIG_TIPC_MEDIA_UDP 37 #ifdef CONFIG_TIPC_MEDIA_UDP
38 #ifndef _TIPC_UDP_MEDIA_H 38 #ifndef _TIPC_UDP_MEDIA_H
39 #define _TIPC_UDP_MEDIA_H 39 #define _TIPC_UDP_MEDIA_H
40 40
41 #include <linux/ip.h> 41 #include <linux/ip.h>
42 #include <linux/udp.h> 42 #include <linux/udp.h>
43 43
44 int tipc_udp_nl_bearer_add(struct tipc_bearer 44 int tipc_udp_nl_bearer_add(struct tipc_bearer *b, struct nlattr *attr);
45 int tipc_udp_nl_add_bearer_data(struct tipc_nl 45 int tipc_udp_nl_add_bearer_data(struct tipc_nl_msg *msg, struct tipc_bearer *b);
46 int tipc_udp_nl_dump_remoteip(struct sk_buff * 46 int tipc_udp_nl_dump_remoteip(struct sk_buff *skb, struct netlink_callback *cb);
47 47
48 /* check if configured MTU is too low for tipc 48 /* check if configured MTU is too low for tipc headers */
49 static inline bool tipc_udp_mtu_bad(u32 mtu) 49 static inline bool tipc_udp_mtu_bad(u32 mtu)
50 { 50 {
51 if (mtu >= (TIPC_MIN_BEARER_MTU + size 51 if (mtu >= (TIPC_MIN_BEARER_MTU + sizeof(struct iphdr) +
52 sizeof(struct udphdr))) 52 sizeof(struct udphdr)))
53 return false; 53 return false;
54 54
55 pr_warn("MTU too low for tipc bearer\n 55 pr_warn("MTU too low for tipc bearer\n");
56 return true; 56 return true;
57 } 57 }
58 58
59 #endif 59 #endif
60 #endif 60 #endif
61 61
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