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Date: Wed, 7 Feb 2018 08:30:53 +0200
From: Serhey Popovych <serhe.popovych@...il.com>
To: netdev@...r.kernel.org
Subject: [PATCH iproute2-next v2 3/6] tunnel: Split statistic getting and printing
This is first step to move tunnel code to use rtnl dump interface
instead of /proc/net/dev read.
Make tnl_print_stats() to accept @struct rtnl_link_stats64 parameter,
introduce tnl_get_stats() that will parse line from /proc/net/dev into
@struct rtnl_link_stats64.
Signed-off-by: Serhey Popovych <serhe.popovych@...il.com>
---
ip/ip6tunnel.c | 8 ++++++--
ip/iptunnel.c | 8 ++++++--
ip/tunnel.c | 57 +++++++++++++++++++++++++++++++++++---------------------
ip/tunnel.h | 5 ++++-
4 files changed, 52 insertions(+), 26 deletions(-)
diff --git a/ip/ip6tunnel.c b/ip/ip6tunnel.c
index 783e28a..3e99559 100644
--- a/ip/ip6tunnel.c
+++ b/ip/ip6tunnel.c
@@ -390,8 +390,12 @@ static int do_tunnels_list(struct ip6_tnl_parm2 *p)
if (!ip6_tnl_parm_match(p, &p1))
continue;
print_tunnel(&p1);
- if (show_stats)
- tnl_print_stats(ptr);
+ if (show_stats) {
+ struct rtnl_link_stats64 s;
+
+ if (!tnl_get_stats(ptr, &s))
+ tnl_print_stats(&s);
+ }
printf("\n");
}
err = 0;
diff --git a/ip/iptunnel.c b/ip/iptunnel.c
index 0aa3b33..6639055 100644
--- a/ip/iptunnel.c
+++ b/ip/iptunnel.c
@@ -425,8 +425,12 @@ static int do_tunnels_list(struct ip_tunnel_parm *p)
(p->i_key && p1.i_key != p->i_key))
continue;
print_tunnel(&p1);
- if (show_stats)
- tnl_print_stats(ptr);
+ if (show_stats) {
+ struct rtnl_link_stats64 s;
+
+ if (!tnl_get_stats(ptr, &s))
+ tnl_print_stats(&s);
+ }
printf("\n");
}
err = 0;
diff --git a/ip/tunnel.c b/ip/tunnel.c
index 948d5f7..06533cf 100644
--- a/ip/tunnel.c
+++ b/ip/tunnel.c
@@ -307,30 +307,45 @@ void tnl_print_endpoint(const char *name, const struct rtattr *rta, int family)
}
}
-/* tnl_print_stats - print tunnel statistics
- *
- * @buf - tunnel interface's line in /proc/net/dev,
- * starting past the interface name and following colon
- */
-void tnl_print_stats(const char *buf)
+int tnl_get_stats(const char *buf, struct rtnl_link_stats64 *s)
{
- unsigned long rx_bytes, rx_packets, rx_errs, rx_drops,
- rx_fifo, rx_frame,
- tx_bytes, tx_packets, tx_errs, tx_drops,
- tx_fifo, tx_colls, tx_carrier, rx_multi;
-
- if (sscanf(buf, "%lu%lu%lu%lu%lu%lu%lu%*d%lu%lu%lu%lu%lu%lu%lu",
- &rx_bytes, &rx_packets, &rx_errs, &rx_drops,
- &rx_fifo, &rx_frame, &rx_multi,
- &tx_bytes, &tx_packets, &tx_errs, &tx_drops,
- &tx_fifo, &tx_colls, &tx_carrier) != 14)
- return;
+ /* rx */
+ __u64 *rx_bytes = &s->rx_bytes;
+ __u64 *rx_packets = &s->rx_packets;
+ __u64 *rx_errs = &s->rx_errors;
+ __u64 *rx_drops = &s->rx_dropped;
+ __u64 *rx_fifo = &s->rx_fifo_errors;
+ __u64 *rx_frame = &s->rx_frame_errors;
+ __u64 *rx_multi = &s->multicast;
+ /* tx */
+ __u64 *tx_bytes = &s->tx_bytes;
+ __u64 *tx_packets = &s->tx_packets;
+ __u64 *tx_errs = &s->tx_errors;
+ __u64 *tx_drops = &s->tx_dropped;
+ __u64 *tx_fifo = &s->tx_fifo_errors;
+ __u64 *tx_carrier = &s->tx_carrier_errors;
+ __u64 *tx_colls = &s->collisions;
+
+ if (sscanf(buf,
+ "%llu%llu%llu%llu%llu%llu%llu%*d%llu%llu%llu%llu%llu%llu%llu",
+ rx_bytes, rx_packets, rx_errs, rx_drops,
+ rx_fifo, rx_frame, rx_multi,
+ tx_bytes, tx_packets, tx_errs, tx_drops,
+ tx_fifo, tx_colls, tx_carrier) != 14)
+ return -1;
+ return 0;
+}
+
+void tnl_print_stats(const struct rtnl_link_stats64 *s)
+{
printf("%s", _SL_);
printf("RX: Packets Bytes Errors CsumErrs OutOfSeq Mcasts%s", _SL_);
- printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-8ld%s",
- rx_packets, rx_bytes, rx_errs, rx_frame, rx_fifo, rx_multi, _SL_);
+ printf(" %-10lld %-12lld %-6lld %-8lld %-8lld %-8lld%s",
+ s->rx_packets, s->rx_bytes, s->rx_errors, s->rx_frame_errors,
+ s->rx_fifo_errors, s->multicast, _SL_);
printf("TX: Packets Bytes Errors DeadLoop NoRoute NoBufs%s", _SL_);
- printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-6ld",
- tx_packets, tx_bytes, tx_errs, tx_colls, tx_carrier, tx_drops);
+ printf(" %-10lld %-12lld %-6lld %-8lld %-8lld %-6lld",
+ s->tx_packets, s->tx_bytes, s->tx_errors, s->collisions,
+ s->tx_carrier_errors, s->tx_dropped);
}
diff --git a/ip/tunnel.h b/ip/tunnel.h
index 5bd27c3..5fe488b 100644
--- a/ip/tunnel.h
+++ b/ip/tunnel.h
@@ -24,6 +24,7 @@
#include <linux/types.h>
struct rtattr;
+struct rtnl_link_stats64;
const char *tnl_strproto(__u8 proto);
@@ -39,6 +40,8 @@ void tnl_print_encap(struct rtattr *tb[],
int encap_sport, int encap_dport);
void tnl_print_endpoint(const char *name,
const struct rtattr *rta, int family);
-void tnl_print_stats(const char *buf);
+void tnl_print_stats(const struct rtnl_link_stats64 *s);
+
+int tnl_get_stats(const char *buf, struct rtnl_link_stats64 *s);
#endif
--
1.7.10.4
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