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Date: Fri, 12 Jul 2019 19:02:14 +0200
From: Andrea Claudi <aclaudi@...hat.com>
To: netdev@...r.kernel.org
Cc: stephen@...workplumber.org, dsahern@...nel.org
Subject: [PATCH iproute2-next] tunnel: factorize printout of GRE key and flags
print_tunnel() functions in ip6tunnel.c and iptunnel.c contains
the same code to print out GRE key and flags
This commit factorize the code in a helper function in tunnel.c
Signed-off-by: Andrea Claudi <aclaudi@...hat.com>
---
ip/ip6tunnel.c | 22 ++--------------------
ip/iptunnel.c | 19 ++-----------------
ip/tunnel.c | 26 ++++++++++++++++++++++++++
ip/tunnel.h | 3 +++
4 files changed, 33 insertions(+), 37 deletions(-)
diff --git a/ip/ip6tunnel.c b/ip/ip6tunnel.c
index 2e0f099cd7ced..d7684a673fdc4 100644
--- a/ip/ip6tunnel.c
+++ b/ip/ip6tunnel.c
@@ -120,26 +120,8 @@ static void print_tunnel(const void *t)
if (p->flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE)
printf(" allow-localremote");
- if ((p->i_flags & GRE_KEY) && (p->o_flags & GRE_KEY) &&
- p->o_key == p->i_key)
- printf(" key %u", ntohl(p->i_key));
- else {
- if (p->i_flags & GRE_KEY)
- printf(" ikey %u", ntohl(p->i_key));
- if (p->o_flags & GRE_KEY)
- printf(" okey %u", ntohl(p->o_key));
- }
-
- if (p->proto == IPPROTO_GRE) {
- if (p->i_flags & GRE_SEQ)
- printf("%s Drop packets out of sequence.", _SL_);
- if (p->i_flags & GRE_CSUM)
- printf("%s Checksum in received packet is required.", _SL_);
- if (p->o_flags & GRE_SEQ)
- printf("%s Sequence packets on output.", _SL_);
- if (p->o_flags & GRE_CSUM)
- printf("%s Checksum output packets.", _SL_);
- }
+ tnl_print_gre_flags(p->proto, p->i_flags, p->o_flags,
+ p->i_key, p->o_key);
}
static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
diff --git a/ip/iptunnel.c b/ip/iptunnel.c
index 92a5cb923b6b0..66929e75c7448 100644
--- a/ip/iptunnel.c
+++ b/ip/iptunnel.c
@@ -354,23 +354,8 @@ static void print_tunnel(const void *t)
}
}
- if ((p->i_flags & GRE_KEY) && (p->o_flags & GRE_KEY) && p->o_key == p->i_key)
- printf(" key %u", ntohl(p->i_key));
- else if ((p->i_flags | p->o_flags) & GRE_KEY) {
- if (p->i_flags & GRE_KEY)
- printf(" ikey %u", ntohl(p->i_key));
- if (p->o_flags & GRE_KEY)
- printf(" okey %u", ntohl(p->o_key));
- }
-
- if (p->i_flags & GRE_SEQ)
- printf("%s Drop packets out of sequence.", _SL_);
- if (p->i_flags & GRE_CSUM)
- printf("%s Checksum in received packet is required.", _SL_);
- if (p->o_flags & GRE_SEQ)
- printf("%s Sequence packets on output.", _SL_);
- if (p->o_flags & GRE_CSUM)
- printf("%s Checksum output packets.", _SL_);
+ tnl_print_gre_flags(p->iph.protocol, p->i_flags, p->o_flags,
+ p->i_key, p->o_key);
}
diff --git a/ip/tunnel.c b/ip/tunnel.c
index d0d55f37169e9..41b0ef3165fdc 100644
--- a/ip/tunnel.c
+++ b/ip/tunnel.c
@@ -308,6 +308,32 @@ void tnl_print_endpoint(const char *name, const struct rtattr *rta, int family)
}
}
+void tnl_print_gre_flags(__u8 proto,
+ __be16 i_flags, __be16 o_flags,
+ __be32 i_key, __be32 o_key)
+{
+ if ((i_flags & GRE_KEY) && (o_flags & GRE_KEY) &&
+ o_key == i_key) {
+ printf(" key %u", ntohl(i_key));
+ } else {
+ if (i_flags & GRE_KEY)
+ printf(" ikey %u", ntohl(i_key));
+ if (o_flags & GRE_KEY)
+ printf(" okey %u", ntohl(o_key));
+ }
+
+ if (proto == IPPROTO_GRE) {
+ if (i_flags & GRE_SEQ)
+ printf("%s Drop packets out of sequence.", _SL_);
+ if (i_flags & GRE_CSUM)
+ printf("%s Checksum in received packet is required.", _SL_);
+ if (o_flags & GRE_SEQ)
+ printf("%s Sequence packets on output.", _SL_);
+ if (o_flags & GRE_CSUM)
+ printf("%s Checksum output packets.", _SL_);
+ }
+}
+
static void tnl_print_stats(const struct rtnl_link_stats64 *s)
{
printf("%s", _SL_);
diff --git a/ip/tunnel.h b/ip/tunnel.h
index e530d07cbf6a2..604f8cbfd6db2 100644
--- a/ip/tunnel.h
+++ b/ip/tunnel.h
@@ -55,5 +55,8 @@ 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_gre_flags(__u8 proto,
+ __be16 i_flags, __be16 o_flags,
+ __be32 i_key, __be32 o_key);
#endif
--
2.20.1
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