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diff --git a/epan/dissectors/packet-dtls.c b/epan/dissectors/packet-dtls.c
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index f0c8a3e..5e287e0 100644
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--- a/epan/dissectors/packet-dtls.c
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+++ b/epan/dissectors/packet-dtls.c
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@@ -119,6 +119,9 @@ static gint hf_dtls_handshake_extensions_len = -1;
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static gint hf_dtls_handshake_extension_type = -1;
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static gint hf_dtls_handshake_extension_len = -1;
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static gint hf_dtls_handshake_extension_data = -1;
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+static gint hf_ssl_handshake_extension_elliptic_curves_len = -1;
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+static gint hf_ssl_handshake_extension_elliptic_curves = -1;
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+static gint hf_ssl_handshake_extension_elliptic_curve = -1;
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static gint hf_dtls_handshake_session_ticket_lifetime_hint = -1;
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static gint hf_dtls_handshake_session_ticket_len = -1;
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static gint hf_dtls_handshake_session_ticket = -1;
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@@ -165,6 +168,7 @@ static gint ett_dtls_heartbeat = -1;
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static gint ett_dtls_cipher_suites = -1;
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static gint ett_dtls_comp_methods = -1;
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static gint ett_dtls_extension = -1;
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+static gint ett_dtls_extension_curves = -1;
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static gint ett_dtls_new_ses_ticket = -1;
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static gint ett_dtls_certs = -1;
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static gint ett_dtls_cert_types = -1;
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@@ -1654,6 +1658,43 @@ dissect_dtls_hnd_hello_common(tvbuff_t *tvb, proto_tree *tree,
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}
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static gint
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+dissect_dtls_hnd_hello_ext_elliptic_curves(tvbuff_t *tvb,
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+ proto_tree *tree, guint32 offset)
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+{
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+ gint16 curves_length;
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+ proto_tree *curves_tree;
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+ proto_item *ti;
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+
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+ curves_length = tvb_get_ntohs(tvb, offset);
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+ proto_tree_add_item(tree, hf_ssl_handshake_extension_elliptic_curves_len,
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+ tvb, offset, 2, ENC_BIG_ENDIAN);
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+
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+ offset += 2;
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+ tvb_ensure_bytes_exist(tvb, offset, curves_length);
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+ ti = proto_tree_add_none_format(tree,
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+ hf_ssl_handshake_extension_elliptic_curves,
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+ tvb, offset, curves_length,
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+ "Elliptic curves (%d curve%s)",
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+ curves_length / 2,
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+ plurality(curves_length/2, "", "s"));
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+
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+ /* make this a subtree */
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+ curves_tree = proto_item_add_subtree(ti, ett_dtls_extension_curves);
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+
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+ /* loop over all curves */
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+ while (curves_length > 0)
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+ {
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+ proto_tree_add_item(curves_tree,
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+ hf_ssl_handshake_extension_elliptic_curve,
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+ tvb, offset, 2, ENC_BIG_ENDIAN);
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+ offset += 2;
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+ curves_length -= 2;
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+ }
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+
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+ return offset;
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+}
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+
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+static gint
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dissect_dtls_hnd_hello_ext(tvbuff_t *tvb,
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proto_tree *tree, guint32 offset, guint32 left)
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{
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@@ -1700,6 +1741,9 @@ dissect_dtls_hnd_hello_ext(tvbuff_t *tvb,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += ext_len;
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break;
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+ case SSL_HND_HELLO_EXT_ELLIPTIC_CURVES:
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+ offset = dissect_dtls_hnd_hello_ext_elliptic_curves(tvb, ext_tree, offset);
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+ break;
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default:
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proto_tree_add_bytes_format(ext_tree, hf_dtls_handshake_extension_data,
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tvb, offset, ext_len, NULL,
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@@ -2534,6 +2578,21 @@ proto_register_dtls(void)
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FT_BYTES, BASE_NONE, NULL, 0x0,
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"Hello Extension data", HFILL }
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},
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+ { &hf_ssl_handshake_extension_elliptic_curves_len,
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+ { "Elliptic Curves Length", "dtls.handshake.extensions_elliptic_curves_length",
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+ FT_UINT16, BASE_DEC, NULL, 0x0,
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+ "Length of elliptic curves field", HFILL }
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+ },
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+ { &hf_ssl_handshake_extension_elliptic_curves,
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+ { "Elliptic Curves List", "dtls.handshake.extensions_elliptic_curves",
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+ FT_NONE, BASE_NONE, NULL, 0x0,
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+ "List of elliptic curves supported", HFILL }
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+ },
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+ { &hf_ssl_handshake_extension_elliptic_curve,
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+ { "Elliptic curve", "dtls.handshake.extensions_elliptic_curve",
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+ FT_UINT16, BASE_HEX, VALS(ssl_extension_curves), 0x0,
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+ NULL, HFILL }
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+ },
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{ &hf_dtls_handshake_session_ticket_lifetime_hint,
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{ "Session Ticket Lifetime Hint", "dtls.handshake.session_ticket_lifetime_hint",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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@@ -2707,6 +2766,7 @@ proto_register_dtls(void)
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&ett_dtls_cipher_suites,
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&ett_dtls_comp_methods,
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&ett_dtls_extension,
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+ &ett_dtls_extension_curves,
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&ett_dtls_new_ses_ticket,
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&ett_dtls_certs,
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&ett_dtls_cert_types,
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