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zebra: Add ability to display in human readable format re->flags and status

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The re->flags and re->status in debugs were being dumped as hex values.
I can never quickly decode this.  Here is an idea.  Let's let FRR do
it for me.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2021-01-05 17:21:20 -05:00
parent 1afacb94e6
commit 61e6de9d57
3 changed files with 74 additions and 7 deletions
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26
lib/zclient.c
View File

@ -40,6 +40,7 @@
#include "nexthop_group.h"
#include "lib_errors.h"
#include "srte.h"
#include "printfrr.h"
DEFINE_MTYPE_STATIC(LIB, ZCLIENT, "Zclient")
DEFINE_MTYPE_STATIC(LIB, REDIST_INST, "Redistribution instance IDs")
@ -4121,3 +4122,28 @@ uint32_t zclient_get_nhg_start(uint32_t proto)
return ZEBRA_NHG_PROTO_SPACING * proto;
}
char *zclient_dump_route_flags(uint32_t flags, char *buf, size_t len)
{
if (flags == 0) {
snprintfrr(buf, len, "None ");
return buf;
}
snprintfrr(
buf, len, "%s%s%s%s%s%s%s%s%s%s",
CHECK_FLAG(flags, ZEBRA_FLAG_ALLOW_RECURSION) ? "Recursion "
: "",
CHECK_FLAG(flags, ZEBRA_FLAG_SELFROUTE) ? "Self " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_IBGP) ? "iBGP " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_SELECTED) ? "Selected " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_FIB_OVERRIDE) ? "Override " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_EVPN_ROUTE) ? "Evpn " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_RR_USE_DISTANCE) ? "RR Distance "
: "",
CHECK_FLAG(flags, ZEBRA_FLAG_TRAPPED) ? "Trapped " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_OFFLOADED) ? "Offloaded " : "",
CHECK_FLAG(flags, ZEBRA_FLAG_OFFLOAD_FAILED) ? "Offload Failed "
: "");
return buf;
}

3
lib/zclient.h
View File

@ -479,6 +479,7 @@ struct zapi_route {
uint8_t type;
unsigned short instance;
/* If you add flags, update zclient_dump_route_flags */
uint32_t flags;
/*
* Cause Zebra to consider this routes nexthops recursively
@ -580,6 +581,8 @@ struct zapi_route {
} opaque;
};
extern char *zclient_dump_route_flags(uint32_t flags, char *buf, size_t len);
struct zapi_labels {
uint8_t message;
#define ZAPI_LABELS_FTN 0x01

52
zebra/zebra_rib.c
View File

@ -38,6 +38,7 @@
#include "workqueue.h"
#include "nexthop_group_private.h"
#include "frr_pthread.h"
#include "printfrr.h"
#include "zebra/zebra_router.h"
#include "zebra/connected.h"
@ -148,6 +149,30 @@ _rnode_zlog(const char *_func, vrf_id_t vrf_id, struct route_node *rn,
zlog(priority, "%s: (%u:%u):%s: %s", _func, vrf_id, table, buf, msgbuf);
}
static char *_dump_re_status(const struct route_entry *re, char *buf,
size_t len)
{
if (re->status == 0) {
snprintfrr(buf, len, "None ");
return buf;
}
snprintfrr(
buf, len, "%s%s%s%s%s%s%s",
CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED) ? "Removed " : "",
CHECK_FLAG(re->status, ROUTE_ENTRY_CHANGED) ? "Changed " : "",
CHECK_FLAG(re->status, ROUTE_ENTRY_LABELS_CHANGED)
? "Label Changed "
: "",
CHECK_FLAG(re->status, ROUTE_ENTRY_QUEUED) ? "Queued " : "",
CHECK_FLAG(re->status, ROUTE_ENTRY_INSTALLED) ? "Installed "
: "",
CHECK_FLAG(re->status, ROUTE_ENTRY_FAILED) ? "Failed " : "",
CHECK_FLAG(re->status, ROUTE_ENTRY_USE_FIB_NHG) ? "Fib NHG "
: "");
return buf;
}
#define rnode_debug(node, vrf_id, ...) \
_rnode_zlog(__func__, vrf_id, node, LOG_DEBUG, __VA_ARGS__)
#define rnode_info(node, ...) \
@ -1080,12 +1105,20 @@ static void rib_process(struct route_node *rn)
}
RNODE_FOREACH_RE_SAFE (rn, re, next) {
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
if (IS_ZEBRA_DEBUG_RIB_DETAILED) {
char flags_buf[128];
char status_buf[128];
zlog_debug(
"%s(%u:%u):%s: Examine re %p (%s) status %x flags %x dist %d metric %d",
"%s(%u:%u):%s: Examine re %p (%s) status: %sflags: %sdist %d metric %d",
VRF_LOGNAME(vrf), vrf_id, re->table, buf, re,
zebra_route_string(re->type), re->status,
re->flags, re->distance, re->metric);
zebra_route_string(re->type),
_dump_re_status(re, status_buf,
sizeof(status_buf)),
zclient_dump_route_flags(re->flags, flags_buf,
sizeof(flags_buf)),
re->distance, re->metric);
}
/* Currently selected re. */
if (CHECK_FLAG(re->flags, ZEBRA_FLAG_SELECTED)) {
@ -2791,6 +2824,8 @@ void _route_entry_dump(const char *func, union prefixconstptr pp,
bool is_srcdst = src_p && src_p->prefixlen;
char straddr[PREFIX_STRLEN];
char srcaddr[PREFIX_STRLEN];
char flags_buf[128];
char status_buf[128];
struct nexthop *nexthop;
struct vrf *vrf = vrf_lookup_by_id(re->vrf_id);
struct nexthop_group *nhg;
@ -2804,9 +2839,12 @@ void _route_entry_dump(const char *func, union prefixconstptr pp,
zlog_debug("%s: uptime == %lu, type == %u, instance == %d, table == %d",
straddr, (unsigned long)re->uptime, re->type, re->instance,
re->table);
zlog_debug("%s: metric == %u, mtu == %u, distance == %u, flags == %u, status == %u",
straddr, re->metric, re->mtu, re->distance, re->flags,
re->status);
zlog_debug(
"%s: metric == %u, mtu == %u, distance == %u, flags == %sstatus == %s",
straddr, re->metric, re->mtu, re->distance,
zclient_dump_route_flags(re->flags, flags_buf,
sizeof(flags_buf)),
_dump_re_status(re, status_buf, sizeof(status_buf)));
zlog_debug("%s: nexthop_num == %u, nexthop_active_num == %u", straddr,
nexthop_group_nexthop_num(&(re->nhe->nhg)),
nexthop_group_active_nexthop_num(&(re->nhe->nhg)));