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Code Releases Activity

Netlink: Cleanups in route metrics

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- Add krt_fastopen_no_cookie atttibute
- Add missing krt_lock_* bits
- Fix krt_feature_allfrag
- Fix type of EA_KRT_LOCK and EA_KRT_FEATURES
This commit is contained in:
Ondrej Zajicek 2024-02-16 14:29:54 +01:00
parent 225943eaea
commit e68363909c
4 changed files with 33 additions and 10 deletions
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4
doc/bird.sgml
View File

@ -3970,7 +3970,9 @@ string, others have type int. Supported attributes are:
<cf/krt_sstresh/, <cf/krt_lock_sstresh/, <cf/krt_cwnd/, <cf/krt_lock_cwnd/,
<cf/krt_advmss/, <cf/krt_lock_advmss/, <cf/krt_reordering/, <cf/krt_lock_reordering/,
<cf/krt_hoplimit/, <cf/krt_lock_hoplimit/, <cf/krt_rto_min/, <cf/krt_lock_rto_min/,
<cf/krt_initcwnd/, <cf/krt_initrwnd/, <cf/krt_quickack/, <cf/krt_congctl/,
<cf/krt_initcwnd/, <cf/krt_lock_initcwnd/, <cf/krt_initrwnd/, <cf/krt_lock_initrwnd/,
<cf/krt_quickack/, <cf/krt_lock_quickack/, <cf/krt_congctl/, <cf/krt_lock_congctl/,
<cf/krt_fastopen_no_cookie/, <cf/krt_lock_fastopen_no_cookie/,
<cf/krt_feature_ecn/, <cf/krt_feature_allfrag/
<sect1>Example

3
sysdep/linux/krt-sys.h
View File

@ -39,7 +39,7 @@ static inline struct ifa * kif_get_primary_ip(struct iface *i UNUSED) { return N
#define EA_KRT_SCOPE EA_CODE(PROTOCOL_KERNEL, 0x12)
#define KRT_METRICS_MAX 0x11 /* RTAX_CC_ALGO+1 */
#define KRT_METRICS_MAX 0x12 /* RTAX_FASTOPEN_NO_COOKIE+1 */
#define KRT_METRICS_OFFSET 0x20 /* Offset of EA_KRT_* vs RTAX_* */
#define KRT_FEATURES_MAX 4
@ -65,6 +65,7 @@ static inline struct ifa * kif_get_primary_ip(struct iface *i UNUSED) { return N
#define EA_KRT_INITRWND EA_CODE(PROTOCOL_KERNEL, 0x2e)
#define EA_KRT_QUICKACK EA_CODE(PROTOCOL_KERNEL, 0x2f)
#define EA_KRT_CONGCTL EA_CODE(PROTOCOL_KERNEL, 0x30)
#define EA_KRT_FASTOPEN_NO_COOKIE EA_CODE(PROTOCOL_KERNEL, 0x31)
struct krt_params {

18
sysdep/linux/netlink.Y
View File

@ -14,9 +14,14 @@ CF_KEYWORDS(KERNEL, TABLE, METRIC, NETLINK, RX, BUFFER,
KRT_PREFSRC, KRT_REALM, KRT_SCOPE, 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_CONGCTL, KRT_LOCK_MTU, KRT_LOCK_WINDOW, KRT_LOCK_RTT, KRT_LOCK_RTTVAR,
KRT_CONGCTL, KRT_FASTOPEN_NO_COOKIE)
CF_KEYWORDS(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)
KRT_LOCK_HOPLIMIT, KRT_LOCK_INITCWND, KRT_LOCK_RTO_MIN, KRT_LOCK_INITRWND,
KRT_LOCK_QUICKACK, KRT_LOCK_CONGCTL, KRT_LOCK_FASTOPEN_NO_COOKIE,
KRT_FEATURE_ECN, KRT_FEATURE_ALLFRAG)
CF_GRAMMAR
@ -46,6 +51,7 @@ dynamic_attr: KRT_RTO_MIN { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_
dynamic_attr: KRT_INITRWND { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_INITRWND); } ;
dynamic_attr: KRT_QUICKACK { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_QUICKACK); } ;
dynamic_attr: KRT_CONGCTL { $$ = f_new_dynamic_attr(EAF_TYPE_STRING, T_STRING, EA_KRT_CONGCTL); } ;
dynamic_attr: KRT_FASTOPEN_NO_COOKIE { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_KRT_FASTOPEN_NO_COOKIE); } ;
/* Bits of EA_KRT_LOCK, based on RTAX_* constants */
@ -58,10 +64,16 @@ dynamic_attr: KRT_LOCK_CWND { $$ = f_new_dynamic_attr_bit(7, T_BOOL, EA_KRT_LOCK
dynamic_attr: KRT_LOCK_ADVMSS { $$ = f_new_dynamic_attr_bit(8, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_REORDERING { $$ = f_new_dynamic_attr_bit(9, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_HOPLIMIT { $$ = f_new_dynamic_attr_bit(10, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_INITCWND { $$ = f_new_dynamic_attr_bit(11, T_BOOL, EA_KRT_LOCK); } ;
/* No lock for FEATURES bitfield */
dynamic_attr: KRT_LOCK_RTO_MIN { $$ = f_new_dynamic_attr_bit(13, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_INITRWND { $$ = f_new_dynamic_attr_bit(14, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_QUICKACK { $$ = f_new_dynamic_attr_bit(15, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_CONGCTL { $$ = f_new_dynamic_attr_bit(16, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_LOCK_FASTOPEN_NO_COOKIE { $$ = f_new_dynamic_attr_bit(17, T_BOOL, EA_KRT_LOCK); } ;
dynamic_attr: KRT_FEATURE_ECN { $$ = f_new_dynamic_attr_bit(0, T_BOOL, EA_KRT_FEATURES); } ;
dynamic_attr: KRT_FEATURE_ALLFRAG { $$ = f_new_dynamic_attr(3, T_BOOL, EA_KRT_FEATURES); } ;
dynamic_attr: KRT_FEATURE_ALLFRAG { $$ = f_new_dynamic_attr_bit(3, T_BOOL, EA_KRT_FEATURES); } ;
CF_CODE

14
sysdep/linux/netlink.c
View File

@ -1840,7 +1840,15 @@ nl_parse_route(struct nl_parse_state *s, struct nlmsghdr *h)
for (t = 1; t < KRT_METRICS_MAX; t++)
if (metrics[0] & (1 << t))
if (t == RTAX_CC_ALGO)
if ((t == RTAX_LOCK) || (t == RTAX_FEATURES))
{
ea->attrs[n++] = (eattr) {
.id = EA_KRT_METRICS + t,
.type = EAF_TYPE_BITFIELD,
.u.data = metrics[t],
};
}
else if (t == RTAX_CC_ALGO)
{
struct adata *ad = lp_alloc_adata(s->pool, strlen(cc_algo));
memcpy(ad->data, cc_algo, ad->length);
@ -1855,7 +1863,7 @@ nl_parse_route(struct nl_parse_state *s, struct nlmsghdr *h)
{
ea->attrs[n++] = (eattr) {
.id = EA_KRT_METRICS + t,
.type = EAF_TYPE_INT, /* FIXME: Some are EAF_TYPE_BITFIELD */
.type = EAF_TYPE_INT,
.u.data = metrics[t],
};
}
@ -2142,7 +2150,7 @@ krt_sys_copy_config(struct krt_config *d, struct krt_config *s)
static const char *krt_metrics_names[KRT_METRICS_MAX] = {
NULL, "lock", "mtu", "window", "rtt", "rttvar", "sstresh", "cwnd", "advmss",
"reordering", "hoplimit", "initcwnd", "features", "rto_min", "initrwnd", "quickack",
"congctl"
"congctl", "fastopen_no_cookie"
};
static const char *krt_features_names[KRT_FEATURES_MAX] = {