https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4609
--- Comment #1 from Martin Visser <martinvisser99@xxxxxxxxx> 2010-03-23 06:41:31 PDT ---
Hi, I have had a bit of read through the code, and come up with a patch that I
have built and tested on Linux (Ubuntu using WS 1.2.6 base).
--- packet-tcp.c 2010-03-23 06:36:44.865686812 -0700
+++ packet-tcp-fix-sack_perm.mv.c 2010-03-23 06:20:33.501483019 -0700
@@ -2135,6 +2135,17 @@
col_append_fstr(pinfo->cinfo, COL_INFO, " %s[%s]", abbrev, val);
}
+
+static void
+dissect_tcpopt_sack_perm(const ip_tcp_opt *optp, tvbuff_t *tvb,
+ int offset, guint optlen, packet_info *pinfo, proto_tree *opt_tree)
+{
+ proto_item *hidden_item;
+ hidden_item = proto_tree_add_boolean(opt_tree, hf_tcp_option_sack_perm, tvb,
offset,
+ optlen, TRUE);
+ tcp_info_append_uint(pinfo, "SACK_PERM", TRUE);
+}
+
static void
dissect_tcpopt_maxseg(const ip_tcp_opt *optp, tvbuff_t *tvb,
int offset, guint optlen, packet_info *pinfo, proto_tree *opt_tree)
@@ -2644,7 +2655,7 @@
NULL,
FIXED_LENGTH,
TCPOLEN_SACK_PERM,
- NULL,
+ dissect_tcpopt_sack_perm,
},
{
TCPOPT_SACK,
@@ -3913,7 +3924,7 @@
HFILL}},
{ &hf_tcp_option_sack_perm,
- { "TCP Sack Perm Option", "tcp.options.sack_perm",
+ { "SACK permitted", "tcp.options.sack_perm",
FT_BOOLEAN,
BASE_NONE, NULL, 0x0, "TCP Sack Perm Option", HFILL}},
--
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