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bird/sysdep/linux/krt-sys.h

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Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
/*
* BIRD -- Linux Kernel Netlink Route Syncer
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_KRT_SYS_H_
#define _BIRD_KRT_SYS_H_
/* Kernel interfaces */
struct kif_params {
};
Makes krt.c much more readable.
2013-06-30 04:55:41 +08:00
struct kif_state {
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
};
static inline void kif_sys_init(struct kif_proto *p UNUSED) { }
static inline int kif_sys_reconfigure(struct kif_proto *p UNUSED, struct kif_config *n UNUSED, struct kif_config *o UNUSED) { return 1; }
static inline void kif_sys_preconfig(struct config *c UNUSED) { }
static inline void kif_sys_postconfig(struct kif_config *c UNUSED) { }
static inline void kif_sys_init_config(struct kif_config *c UNUSED) { }
static inline void kif_sys_copy_config(struct kif_config *d UNUSED, struct kif_config *s UNUSED) { }
Build: switch on -Wextra, get rid of most of the warnings There are several unresolved -Wmissing-field-initializers on older versions of GCC than 5.1, all of them false positive.
2016-10-14 21:37:04 +08:00
static inline struct ifa * kif_get_primary_ip(struct iface *i UNUSED) { return NULL; }
Changes primary addr selection on BSD to respect SIOCGIFADDR ioctl() result. Thanks to Alexander V. Chernikov for the original patch.
2013-11-25 08:21:39 +08:00
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
/* Kernel routes */
KRT: Forbid path merging on BSD We support ECMP routes only on Linux. Exported routes are checked in krt_capable(), but a route generated during path merging avoids this check.
2016-08-30 18:43:46 +08:00
#define KRT_ALLOW_MERGE_PATHS 1
Protocol: Introducing an enum protocol_class This supersedes the EAP_* constants.
2018-05-07 20:47:00 +08:00
#define EA_KRT_PREFSRC EA_CODE(PROTOCOL_KERNEL, 0x10)
#define EA_KRT_REALM EA_CODE(PROTOCOL_KERNEL, 0x11)
#define EA_KRT_SCOPE EA_CODE(PROTOCOL_KERNEL, 0x12)
KRT: Add support for plenty of kernel route metrics Linux kernel route metrics (RTA_METRICS netlink route attribute) are represented and accessible as new route attributes: krt_mtu, krt_window, krt_rtt, krt_rttvar, krt_sstresh, krt_cwnd, krt_advmss, krt_reordering, krt_hoplimit, krt_initcwnd, krt_rto_min, krt_initrwnd, krt_quickack, krt_lock_mtu, krt_lock_window, krt_lock_rtt, krt_lock_rttvar, krt_lock_sstresh, krt_lock_cwnd, krt_lock_advmss, krt_lock_reordering, krt_lock_hoplimit, krt_lock_rto_min, krt_feature_ecn, krt_feature_allfrag
2015-05-12 22:42:22 +08:00
#define KRT_METRICS_MAX 0x10 /* RTAX_QUICKACK+1 */
#define KRT_METRICS_OFFSET 0x20 /* Offset of EA_KRT_* vs RTAX_* */
#define KRT_FEATURES_MAX 4
/*
* Following attributes are parts of RTA_METRICS kernel route attribute, their
* ids must be consistent with their RTAX_* constants (+ KRT_METRICS_OFFSET)
*/
Protocol: Introducing an enum protocol_class This supersedes the EAP_* constants.
2018-05-07 20:47:00 +08:00
#define EA_KRT_METRICS EA_CODE(PROTOCOL_KERNEL, 0x20) /* Dummy one */
#define EA_KRT_LOCK EA_CODE(PROTOCOL_KERNEL, 0x21)
#define EA_KRT_MTU EA_CODE(PROTOCOL_KERNEL, 0x22)
#define EA_KRT_WINDOW EA_CODE(PROTOCOL_KERNEL, 0x23)
#define EA_KRT_RTT EA_CODE(PROTOCOL_KERNEL, 0x24)
#define EA_KRT_RTTVAR EA_CODE(PROTOCOL_KERNEL, 0x25)
#define EA_KRT_SSTRESH EA_CODE(PROTOCOL_KERNEL, 0x26)
#define EA_KRT_CWND EA_CODE(PROTOCOL_KERNEL, 0x27)
#define EA_KRT_ADVMSS EA_CODE(PROTOCOL_KERNEL, 0x28)
#define EA_KRT_REORDERING EA_CODE(PROTOCOL_KERNEL, 0x29)
#define EA_KRT_HOPLIMIT EA_CODE(PROTOCOL_KERNEL, 0x2a)
#define EA_KRT_INITCWND EA_CODE(PROTOCOL_KERNEL, 0x2b)
#define EA_KRT_FEATURES EA_CODE(PROTOCOL_KERNEL, 0x2c)
#define EA_KRT_RTO_MIN EA_CODE(PROTOCOL_KERNEL, 0x2d)
#define EA_KRT_INITRWND EA_CODE(PROTOCOL_KERNEL, 0x2e)
#define EA_KRT_QUICKACK EA_CODE(PROTOCOL_KERNEL, 0x2f)
KRT: Add support for plenty of kernel route metrics Linux kernel route metrics (RTA_METRICS netlink route attribute) are represented and accessible as new route attributes: krt_mtu, krt_window, krt_rtt, krt_rttvar, krt_sstresh, krt_cwnd, krt_advmss, krt_reordering, krt_hoplimit, krt_initcwnd, krt_rto_min, krt_initrwnd, krt_quickack, krt_lock_mtu, krt_lock_window, krt_lock_rtt, krt_lock_rttvar, krt_lock_sstresh, krt_lock_cwnd, krt_lock_advmss, krt_lock_reordering, krt_lock_hoplimit, krt_lock_rto_min, krt_feature_ecn, krt_feature_allfrag
2015-05-12 22:42:22 +08:00
/* Bits of EA_KRT_LOCK, also based on RTAX_* constants */
#define EA_KRT_LOCK_MTU EA_KRT_LOCK | EA_BIT(0x2)
#define EA_KRT_LOCK_WINDOW EA_KRT_LOCK | EA_BIT(0x3)
#define EA_KRT_LOCK_RTT EA_KRT_LOCK | EA_BIT(0x4)
#define EA_KRT_LOCK_RTTVAR EA_KRT_LOCK | EA_BIT(0x5)
#define EA_KRT_LOCK_SSTHRESH EA_KRT_LOCK | EA_BIT(0x6)
#define EA_KRT_LOCK_CWND EA_KRT_LOCK | EA_BIT(0x7)
#define EA_KRT_LOCK_ADVMSS EA_KRT_LOCK | EA_BIT(0x8)
#define EA_KRT_LOCK_REORDERING EA_KRT_LOCK | EA_BIT(0x9)
#define EA_KRT_LOCK_HOPLIMIT EA_KRT_LOCK | EA_BIT(0xa)
// define EA_KRT_LOCK_INITCWND EA_KRT_LOCK | EA_BIT(0xb)
// define EA_KRT_LOCK_FEATURES EA_KRT_LOCK | EA_BIT(0xc)
#define EA_KRT_LOCK_RTO_MIN EA_KRT_LOCK | EA_BIT(0xd)
// define EA_KRT_LOCK_INITRWND EA_KRT_LOCK | EA_BIT(0xe)
/* Bits of EA_KRT_FEATURES, based on RTAX_FEATURE_* constants */
#define EA_KRT_FEATURE_ECN EA_KRT_FEATURES | EA_BIT(0x0)
// define EA_KRT_FEATURE_SACK EA_KRT_FEATURES | EA_BIT(0x1)
// define EA_KRT_FEATURE_TSTAMP EA_KRT_FEATURES | EA_BIT(0x2)
#define EA_KRT_FEATURE_ALLFRAG EA_KRT_FEATURES | EA_BIT(0x3)
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
struct krt_params {
Netlink: Allow more than 256 routing tables. Since 2.6.19, the netlink API defines RTA_TABLE routing attribute to allow 32-bit routing table IDs. Using this attribute to index routing tables at Linux, instead of 8-bit rtm_table field.
2015-11-03 21:42:41 +08:00
u32 table_id; /* Kernel table ID we sync with */
KRT: Add kernel metric protocol option Kernel routes with different metrics do not clash with each other, therefore using dedicated metric value is a reliable way to avoid overwriting routes from other sources (e.g. kernel device routes). Although kernel route metric could already be set as a route attribute by filters, that is not consistent with the way how Linux kernel handles route metric - not just a route attribute, but a part of a route key.
2016-09-15 20:59:06 +08:00
u32 metric; /* Kernel metric used for all routes */
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
};
Makes krt.c much more readable.
2013-06-30 04:55:41 +08:00
struct krt_state {
Netlink: Allow more than 256 routing tables. Since 2.6.19, the netlink API defines RTA_TABLE routing attribute to allow 32-bit routing table IDs. Using this attribute to index routing tables at Linux, instead of 8-bit rtm_table field.
2015-11-03 21:42:41 +08:00
struct krt_proto *hash_next;
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
};
static inline void krt_sys_init(struct krt_proto *p UNUSED) { }
Netlink: Allow more than 256 routing tables. Since 2.6.19, the netlink API defines RTA_TABLE routing attribute to allow 32-bit routing table IDs. Using this attribute to index routing tables at Linux, instead of 8-bit rtm_table field.
2015-11-03 21:42:41 +08:00
static inline void krt_sys_preconfig(struct config *c UNUSED) { }
static inline void krt_sys_postconfig(struct krt_config *x UNUSED) { }
Cleanup in sysdep KRT code, part 4. Adding some files that was accidentally removed (instead of moved) in cleanup part 2.
2012-05-04 22:38:25 +08:00
#endif
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