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authorMichael Mann <mmann78@netscape.net>2016-07-21 10:21:25 -0400
committerAnders Broman <a.broman58@gmail.com>2016-07-27 03:40:02 +0000
commit8b0e9c66728f6a39bbe3ada1029e13ad1378013a (patch)
treec0c1b4da1845069520d4e131db96e6143e4ca772 /epan/dissectors/packet-mrdisc.c
parentb7f1e99f7f4c75fa4bac1ccba77087fb0e50b8ac (diff)
Follow up for proto_tree_add_checksum.
Fill in the "gaps" so that all dissectors that verify checksums have both a status and expert info field. Also address comments from original proto_tree_add_checksum patch that didn't make it. Ping-Bug: 8859 Change-Id: I2e6640108fd6bb218cb959fe9e4ba98a13e43a2f Reviewed-on: https://code.wireshark.org/review/16590 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Anders Broman <a.broman58@gmail.com>
Diffstat (limited to 'epan/dissectors/packet-mrdisc.c')
-rw-r--r--epan/dissectors/packet-mrdisc.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/epan/dissectors/packet-mrdisc.c b/epan/dissectors/packet-mrdisc.c
index 45fa7f4349..8268bae7c4 100644
--- a/epan/dissectors/packet-mrdisc.c
+++ b/epan/dissectors/packet-mrdisc.c
@@ -37,7 +37,7 @@
#include "config.h"
#include <epan/packet.h>
-#include <epan/exceptions.h>
+#include <epan/expert.h>
#include "packet-igmp.h"
@@ -60,6 +60,8 @@ static int hf_option_bytes = -1;
static int ett_mrdisc = -1;
static int ett_options = -1;
+static expert_field ei_checksum = EI_INIT;
+
#define MC_ALL_ROUTERS 0xe0000002
#define MRDISC_MRA 0x24
@@ -91,7 +93,7 @@ dissect_mrdisc_mra(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, i
offset += 1;
/* checksum */
- igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_status, pinfo, 0);
+ igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_status, &ei_checksum, pinfo, 0);
offset += 2;
/* skip unused bytes */
@@ -160,7 +162,7 @@ dissect_mrdisc_mrst(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree,
offset += 1;
/* checksum */
- igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_status, pinfo, 0);
+ igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_status, &ei_checksum, pinfo, 0);
offset += 2;
return offset;
@@ -179,7 +181,7 @@ dissect_mrdisc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void*
/* Shouldn't be destined for us */
if (memcmp(pinfo->dst.data, &dst, 4))
- return 0;
+ return 0;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MRDISC");
col_clear(pinfo->cinfo, COL_INFO);
@@ -264,9 +266,17 @@ proto_register_mrdisc(void)
&ett_options,
};
+ static ei_register_info ei[] = {
+ { &ei_checksum, { "mrdisc.bad_checksum", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }},
+ };
+
+ expert_module_t* expert_mrdisc;
+
proto_mrdisc = proto_register_protocol("Multicast Router DISCovery protocol", "MRDISC", "mrdisc");
proto_register_field_array(proto_mrdisc, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
+ expert_mrdisc = expert_register_protocol(proto_mrdisc);
+ expert_register_field_array(expert_mrdisc, ei, array_length(ei));
}
void