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Message-Id: <20210930113844.1829373-11-razor@blackwall.org>
Date: Thu, 30 Sep 2021 14:38:42 +0300
From: Nikolay Aleksandrov <razor@...ckwall.org>
To: netdev@...r.kernel.org
Cc: roopa@...dia.com, donaldsharp72@...il.com, dsahern@...il.com,
idosch@...sch.org, Nikolay Aleksandrov <nikolay@...dia.com>
Subject: [PATCH iproute2-next 10/12] ip: nexthop: add a helper which retrieves and prints cached nh entry
From: Nikolay Aleksandrov <nikolay@...dia.com>
Add a helper which looks for a nexthop in the cache and if not found
reads the entry from the kernel and caches it. Finally the entry is
printed.
Signed-off-by: Nikolay Aleksandrov <nikolay@...dia.com>
---
ip/ipnexthop.c | 16 ++++++++++++++++
ip/nh_common.h | 3 +++
2 files changed, 19 insertions(+)
diff --git a/ip/ipnexthop.c b/ip/ipnexthop.c
index e0f0f78460c9..31462c57d299 100644
--- a/ip/ipnexthop.c
+++ b/ip/ipnexthop.c
@@ -602,6 +602,22 @@ static void ipnh_cache_del(struct nh_entry *nhe)
free(nhe);
}
+void print_cache_nexthop_id(FILE *fp, const char *fp_prefix, const char *jsobj,
+ __u32 nh_id)
+{
+ struct nh_entry *nhe = ipnh_cache_get(nh_id);
+
+ if (!nhe) {
+ nhe = ipnh_cache_add(nh_id);
+ if (!nhe)
+ return;
+ }
+
+ if (fp_prefix)
+ print_string(PRINT_FP, NULL, "%s", fp_prefix);
+ __print_nexthop_entry(fp, jsobj, nhe, false);
+}
+
int print_nexthop(struct nlmsghdr *n, void *arg)
{
struct nhmsg *nhm = NLMSG_DATA(n);
diff --git a/ip/nh_common.h b/ip/nh_common.h
index ee84d968d8dd..b448f1b5530b 100644
--- a/ip/nh_common.h
+++ b/ip/nh_common.h
@@ -46,4 +46,7 @@ struct nh_entry {
struct nexthop_grp *nh_groups;
};
+void print_cache_nexthop_id(FILE *fp, const char *fp_prefix, const char *jsobj,
+ __u32 nh_id);
+
#endif /* __NH_COMMON_H__ */
--
2.31.1
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