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[thirdparty/bird.git] / sysdep / linux / krt-sys.h
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1/*
2 * BIRD -- Linux Kernel Netlink Route Syncer
3 *
4 * (c) 1998--2000 Martin Mares <mj@ucw.cz>
5 *
6 * Can be freely distributed and used under the terms of the GNU GPL.
7 */
8
9#ifndef _BIRD_KRT_SYS_H_
10#define _BIRD_KRT_SYS_H_
11
12
13/* Kernel interfaces */
14
15struct kif_params {
16};
17
c6964c30 18struct kif_state {
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19};
20
21
22static inline void kif_sys_init(struct kif_proto *p UNUSED) { }
23static inline int kif_sys_reconfigure(struct kif_proto *p UNUSED, struct kif_config *n UNUSED, struct kif_config *o UNUSED) { return 1; }
24
25static inline void kif_sys_preconfig(struct config *c UNUSED) { }
26static inline void kif_sys_postconfig(struct kif_config *c UNUSED) { }
27static inline void kif_sys_init_config(struct kif_config *c UNUSED) { }
28static inline void kif_sys_copy_config(struct kif_config *d UNUSED, struct kif_config *s UNUSED) { }
29
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30static inline struct ifa * kif_get_primary_ip(struct iface *i) { return NULL; }
31
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32
33/* Kernel routes */
34
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35#define KRT_ALLOW_MERGE_PATHS 1
36
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37#define EA_KRT_PREFSRC EA_CODE(EAP_KRT, 0x10)
38#define EA_KRT_REALM EA_CODE(EAP_KRT, 0x11)
39
40
41#define KRT_METRICS_MAX 0x10 /* RTAX_QUICKACK+1 */
42#define KRT_METRICS_OFFSET 0x20 /* Offset of EA_KRT_* vs RTAX_* */
43
44#define KRT_FEATURES_MAX 4
45
46/*
47 * Following attributes are parts of RTA_METRICS kernel route attribute, their
48 * ids must be consistent with their RTAX_* constants (+ KRT_METRICS_OFFSET)
49 */
50#define EA_KRT_METRICS EA_CODE(EAP_KRT, 0x20) /* Dummy one */
51#define EA_KRT_LOCK EA_CODE(EAP_KRT, 0x21)
52#define EA_KRT_MTU EA_CODE(EAP_KRT, 0x22)
53#define EA_KRT_WINDOW EA_CODE(EAP_KRT, 0x23)
54#define EA_KRT_RTT EA_CODE(EAP_KRT, 0x24)
55#define EA_KRT_RTTVAR EA_CODE(EAP_KRT, 0x25)
56#define EA_KRT_SSTRESH EA_CODE(EAP_KRT, 0x26)
57#define EA_KRT_CWND EA_CODE(EAP_KRT, 0x27)
58#define EA_KRT_ADVMSS EA_CODE(EAP_KRT, 0x28)
59#define EA_KRT_REORDERING EA_CODE(EAP_KRT, 0x29)
60#define EA_KRT_HOPLIMIT EA_CODE(EAP_KRT, 0x2a)
61#define EA_KRT_INITCWND EA_CODE(EAP_KRT, 0x2b)
62#define EA_KRT_FEATURES EA_CODE(EAP_KRT, 0x2c)
63#define EA_KRT_RTO_MIN EA_CODE(EAP_KRT, 0x2d)
64#define EA_KRT_INITRWND EA_CODE(EAP_KRT, 0x2e)
65#define EA_KRT_QUICKACK EA_CODE(EAP_KRT, 0x2f)
66
67/* Bits of EA_KRT_LOCK, also based on RTAX_* constants */
68#define EA_KRT_LOCK_MTU EA_KRT_LOCK | EA_BIT(0x2)
69#define EA_KRT_LOCK_WINDOW EA_KRT_LOCK | EA_BIT(0x3)
70#define EA_KRT_LOCK_RTT EA_KRT_LOCK | EA_BIT(0x4)
71#define EA_KRT_LOCK_RTTVAR EA_KRT_LOCK | EA_BIT(0x5)
72#define EA_KRT_LOCK_SSTHRESH EA_KRT_LOCK | EA_BIT(0x6)
73#define EA_KRT_LOCK_CWND EA_KRT_LOCK | EA_BIT(0x7)
74#define EA_KRT_LOCK_ADVMSS EA_KRT_LOCK | EA_BIT(0x8)
75#define EA_KRT_LOCK_REORDERING EA_KRT_LOCK | EA_BIT(0x9)
76#define EA_KRT_LOCK_HOPLIMIT EA_KRT_LOCK | EA_BIT(0xa)
77// define EA_KRT_LOCK_INITCWND EA_KRT_LOCK | EA_BIT(0xb)
78// define EA_KRT_LOCK_FEATURES EA_KRT_LOCK | EA_BIT(0xc)
79#define EA_KRT_LOCK_RTO_MIN EA_KRT_LOCK | EA_BIT(0xd)
80// define EA_KRT_LOCK_INITRWND EA_KRT_LOCK | EA_BIT(0xe)
81
82/* Bits of EA_KRT_FEATURES, based on RTAX_FEATURE_* constants */
83#define EA_KRT_FEATURE_ECN EA_KRT_FEATURES | EA_BIT(0x0)
84// define EA_KRT_FEATURE_SACK EA_KRT_FEATURES | EA_BIT(0x1)
85// define EA_KRT_FEATURE_TSTAMP EA_KRT_FEATURES | EA_BIT(0x2)
86#define EA_KRT_FEATURE_ALLFRAG EA_KRT_FEATURES | EA_BIT(0x3)
87
88
95616c82 89struct krt_params {
9ddbfbdd 90 u32 table_id; /* Kernel table ID we sync with */
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91};
92
c6964c30 93struct krt_state {
9ddbfbdd 94 struct krt_proto *hash_next;
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95};
96
97
98static inline void krt_sys_init(struct krt_proto *p UNUSED) { }
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99static inline void krt_sys_preconfig(struct config *c UNUSED) { }
100static inline void krt_sys_postconfig(struct krt_config *x UNUSED) { }
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101
102
103#endif