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authorOle Troan <ot@cisco.com>2018-05-18 11:01:31 +0200
committerFlorin Coras <florin.coras@gmail.com>2018-05-23 16:39:45 +0000
commit8a9c8f1412cb1258340b18a8eb622a835ef3c37b (patch)
treee8ec27f0cccb0aac65a984fd0509d8d6426995ac /src/vnet/ip/icmp4.c
parent2c2feab7d89239c92df4622c96e853230393deb9 (diff)
VPP-1283: IPv4 PMTU missing MTU value in ICMP4 message.
Change-Id: I7a4133c59ff45b0744b48e246a049d9f015026fc Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/ip/icmp4.c')
-rw-r--r--src/vnet/ip/icmp4.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/vnet/ip/icmp4.c b/src/vnet/ip/icmp4.c
index 1fe01e48500..a4808f23271 100644
--- a/src/vnet/ip/icmp4.c
+++ b/src/vnet/ip/icmp4.c
@@ -513,13 +513,15 @@ ip4_icmp_error (vlib_main_t * vm,
b->current_length = 0;
}
}
- p0->current_length =
- p0->current_length > 576 ? 576 : p0->current_length;
/* Add IP header and ICMPv4 header including a 4 byte data field */
vlib_buffer_advance (p0,
-sizeof (ip4_header_t) -
sizeof (icmp46_header_t) - 4);
+
+ p0->current_length =
+ p0->current_length > 576 ? 576 : p0->current_length;
+
out_ip0 = vlib_buffer_get_current (p0);
icmp0 = (icmp46_header_t *) & out_ip0[1];