Add support for decoding DNS URI RR (typecode 256, RFC7553)
diff --git a/nameser.h b/nameser.h
index d8dbd4d..820458c 100644
--- a/nameser.h
+++ b/nameser.h
@@ -184,6 +184,7 @@
#define T_MAILB 253 /* transfer mailbox records */
#define T_MAILA 254 /* transfer mail agent records */
#define T_ANY 255 /* wildcard match */
+#define T_URI 256 /* uri records [RFC7553] */
/*
* Values for class field
diff --git a/print-domain.c b/print-domain.c
index 63c541a..b8355a9 100644
--- a/print-domain.c
+++ b/print-domain.c
@@ -332,6 +332,7 @@
{ T_MAILB, "MAILB" }, /* RFC 1035 */
{ T_MAILA, "MAILA" }, /* RFC 1035 */
{ T_ANY, "ANY" },
+ { T_URI, "URI" }, /* RFC 7553 */
{ 0, NULL }
};
@@ -552,6 +553,14 @@
break;
}
+ case T_URI:
+ if (!ND_TTEST_LEN(cp, len))
+ return(NULL);
+ ND_PRINT(" %u %u ", GET_BE_U_2(cp), GET_BE_U_2(cp + 2));
+ if (nd_printn(ndo, cp + 4, len - 4, ndo->ndo_snapend))
+ return(NULL);
+ break;
+
case T_OPT:
ND_PRINT(" UDPsize=%u", class);
if (opt_flags & 0x8000)
diff --git a/tests/TESTLIST b/tests/TESTLIST
index 35786ee..55e3f38 100644
--- a/tests/TESTLIST
+++ b/tests/TESTLIST
@@ -669,3 +669,6 @@
# LLDP
lldp-app-priority lldp-app-priority.pcap lldp-app-priority.out -v
+
+# DNS URI RR support tests
+dns-uri dns-uri.pcap dns-uri.out
diff --git a/tests/dns-uri.out b/tests/dns-uri.out
new file mode 100644
index 0000000..232846e
--- /dev/null
+++ b/tests/dns-uri.out
@@ -0,0 +1,4 @@
+ 1 18:31:55.600983 IP 127.0.0.1.59347 > 127.0.0.1.53: 44845+ [1au] URI? _http.dns.test. (55)
+ 2 18:31:55.601140 IP 127.0.0.1.53 > 127.0.0.1.59347: 44845* 1/0/1 URI 10 5 http://www.dns.test:8000 (83)
+ 3 18:31:57.245707 IP 127.0.0.1.37251 > 127.0.0.1.53: 25957+ [1au] URI? _ftp.dns.test. (54)
+ 4 18:31:57.245858 IP 127.0.0.1.53 > 127.0.0.1.37251: 25957 NXDomain* 0/1/1 (101)
diff --git a/tests/dns-uri.pcap b/tests/dns-uri.pcap
new file mode 100644
index 0000000..70e8024
--- /dev/null
+++ b/tests/dns-uri.pcap
Binary files differ
