From 63aa70ab32f18a79fd95d407ed2fd647398484b6 Mon Sep 17 00:00:00 2001
From: "W.C.A. Wijngaards" <wouter@nlnetlabs.nl>
Date: Wed, 10 Sep 2025 15:26:57 +0200
Subject: [PATCH] - xfr-tsig, unit test for tsig sign every couple packets, and
 verify that.

---
 testcode/unittsig.c  |  22 ++-
 testdata/tsig_test.4 | 414 ++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 428 insertions(+), 8 deletions(-)

diff --git a/testcode/unittsig.c b/testcode/unittsig.c
index 3019978ee..a67787d1e 100644
--- a/testcode/unittsig.c
+++ b/testcode/unittsig.c
@@ -128,7 +128,7 @@ static int vtest = 0;
  *	expected result, the result of the verify call is compared with
  *	the expected result2, and the test fails if not equal.
  *
- * tsig-sign-reply-xfr <num> <time> <expected rcode>
+ * tsig-sign-reply-xfr <num> <time> <expected rcode> <nth>
  * packet
  * <hex>
  * endpacket
@@ -142,7 +142,9 @@ static int vtest = 0;
  * 	used with tsig-sign-reply-xfr and the output is checked with
  * 	the checkhex.
  * 	The expected rcode is from tsig_verify_query. The expected from
- * 	call is from tsig_sign_reply_xfr.
+ * 	call is from tsig_sign_reply_xfr. The nth value 0 or 1 means
+ * 	sign every packet, but >= 2 signs after a series of unsigned
+ * 	packets.
  * tsig-verify-reply-xfr <num> <key> <time> <result>
  * packet
  * <hex>
@@ -1035,8 +1037,9 @@ handle_tsig_sign_reply_xfr(char* line, FILE* in, const char* fname,
 	struct tsig_key_table* key_table, struct sldns_buffer* pkt)
 {
 	char* arg = get_arg_on_line(line, "tsig-sign-reply-xfr");
-	char* s, *numstr, *timestr, *expected_rcode_str, *expectedstr2;
-	int expected_rcode, expected_result2, ret, num, i;
+	char* s, *numstr, *timestr, *expected_rcode_str, *expectedstr2,
+		*nthstr;
+	int expected_rcode, expected_result2, ret, num, i, nth;
 	uint64_t timepoint;
 	struct tsig_data* tsig;
 	size_t pos;
@@ -1049,6 +1052,7 @@ handle_tsig_sign_reply_xfr(char* line, FILE* in, const char* fname,
 	numstr = get_next_arg_on_line(&s);
 	timestr = get_next_arg_on_line(&s);
 	expected_rcode_str = get_next_arg_on_line(&s);
+	nthstr = get_next_arg_on_line(&s);
 
 	num = atoi(numstr);
 	if(num == 0 && strcmp(numstr, "0") != 0)
@@ -1062,12 +1066,17 @@ handle_tsig_sign_reply_xfr(char* line, FILE* in, const char* fname,
 		strcmp(expected_rcode_str, "RCODE0") != 0)
 		fatal_exit("expected rcode argument for %s",
 			expected_rcode_str);
+	nth = atoi(nthstr);
+	if(nth == 0 && strcmp(nthstr, "0") != 0)
+		fatal_exit("expected int argument for %s", nthstr);
+	if(nth == 0)
+		nth = 1;
 
 	if(vtest) {
 		char bufrc[16];
 		sldns_wire2str_rcode_buf(expected_rcode, bufrc, sizeof(bufrc));
-		printf("tsig-sign-reply-xfr with %d %d %s\n", num,
-			(int)timepoint, bufrc);
+		printf("tsig-sign-reply-xfr with %d %d %s %d\n", num,
+			(int)timepoint, bufrc, nth);
 	}
 
 	/* Verify the query in the packet buffer. Use that TSIG to sign
@@ -1089,6 +1098,7 @@ handle_tsig_sign_reply_xfr(char* line, FILE* in, const char* fname,
 				ret, expected_rcode, bufrc);
 	}
 	unit_assert(ret == expected_rcode);
+	tsig->every_nth = nth;
 
 	/* Sign the reply packets. */
 	for(i=0; i<num; i++) {
diff --git a/testdata/tsig_test.4 b/testdata/tsig_test.4
index 681751211..fa132364b 100644
--- a/testdata/tsig_test.4
+++ b/testdata/tsig_test.4
@@ -118,8 +118,8 @@ endpacket
 packet
 1c9600000001000000000002076578616d706c6503636f6d0000fc000100002910000000000000000474657374036b65790000fa00ff00000000003d0b686d61632d73686132353600000068c01a52012c00202f017432ef8f8ef3dab9be9f9c4765eda7939f0485dfe384206e97e13acbd8f91c9600000000
 endpacket
-#      <number of packets> <time> <rcode for query process>
-tsig-sign-reply-xfr 24 1757420114 NOERROR
+#      <number of packets> <time> <rcode for query process> <every nth>
+tsig-sign-reply-xfr 24 1757420114 NOERROR 1
 # packet 1
 # unsigned input before the TSIG is added
 # (without TSIG so, ARcount 02->01, RR TSIG 0474657374036b657900.. deleted.)
@@ -807,3 +807,413 @@ packet
 endpacket
 call 1757422133 0 1
 # end of tsig-verify-reply-xfr test, example.com AXFR with TSIG every couple packets, with NTH 3.
+
+# tsig-sign-reply-xfr test, with sign every NTH 4.
+# the incoming query, example.com AXFR
+packet
+1c9600000001000000000002076578616d706c6503636f6d0000fc000100002910000000000000000474657374036b65790000fa00ff00000000003d0b686d61632d73686132353600000068c01a52012c00202f017432ef8f8ef3dab9be9f9c4765eda7939f0485dfe384206e97e13acbd8f91c9600000000
+endpacket
+#      <number of packets> <time> <rcode for query process> <every nth>
+tsig-sign-reply-xfr 24 1757420114 NOERROR 4
+# packet 1
+# unsigned input before the TSIG is added
+# (without TSIG so, ARcount 02->01, RR TSIG 0474657374036b657900.. deleted.)
+packet
+1c9684000001000200000001076578616d706c6503636f6d0000fc0001c00c0006000100000e100023c00c0a686f73746d6173746572c00c5cd7fffe00000e10000003840012750000000708c00c0001000100000e1000043ed26e0700002904d0000000000000
+endpacket
+# call information of the TSIG routine.
+#    <timepoint> <expected function return value>
+call 1757420114 1
+# check for output packet that is the result of TSIG signature.
+check-packet
+1c9684000001000200000002076578616d706c6503636f6d0000fc0001c00c0006000100000e100023c00c0a686f73746d6173746572c00c5cd7fffe00000e10000003840012750000000708c00c0001000100000e1000043ed26e0700002904d00000000000000474657374036b65790000fa00ff00000000003d0b686d61632d73686132353600000068c01a52012c00200fe349e19b5b3e952c097db0dfef9430734da92125ab1d4542d450774f352b4d1c9600000000
+endpacket
+
+# packet 2
+packet
+1c9684000000000200000000076578616d706c6503636f6d000002000100000e100005026e73c00cc00c000f000100000e1000070005026d78c00c
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000076578616d706c6503636f6d000002000100000e100005026e73c00cc00c000f000100000e1000070005026d78c00c
+endpacket
+
+# packet 3
+packet
+1c96840000000002000000000131026161076578616d706c6503636f6d000001000100000e1000047f000001023130c00e0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c96840000000002000000000131026161076578616d706c6503636f6d000001000100000e1000047f000001023130c00e0001000100000e1000047f000001
+endpacket
+
+# packet 4
+packet
+1c9684000000000200000000023131026161076578616d706c6503636f6d000001000100000e1000047f000001023132c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023131026161076578616d706c6503636f6d000001000100000e1000047f000001023132c00f0001000100000e1000047f000001
+endpacket
+
+# packet 5
+packet
+1c9684000000000200000000023133026161076578616d706c6503636f6d000001000100000e1000047f000001023134c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1C9684000000000200000001023133026161076578616D706C6503636F6D000001000100000E1000047F000001023134C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C0020EA1EA499445B22973D520C943E9C74862BC6199756C6EEEAEDB910B5B95F5DDE1C9600000000
+endpacket
+
+# packet 6
+packet
+1c9684000000000200000000023135026161076578616d706c6503636f6d000001000100000e1000047f000001023136c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023135026161076578616d706c6503636f6d000001000100000e1000047f000001023136c00f0001000100000e1000047f000001
+endpacket
+
+# packet 7
+packet
+1c9684000000000200000000023137026161076578616d706c6503636f6d000001000100000e1000047f000001023138c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023137026161076578616d706c6503636f6d000001000100000e1000047f000001023138c00f0001000100000e1000047f000001
+endpacket
+
+# packet 8
+packet
+1c9684000000000200000000023139026161076578616d706c6503636f6d000001000100000e1000047f0000010132c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023139026161076578616d706c6503636f6d000001000100000e1000047f0000010132c00f0001000100000e1000047f000001
+endpacket
+
+# packet 9
+packet
+1c9684000000000200000000023230026161076578616d706c6503636f6d000001000100000e1000047f000001023231c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1C9684000000000200000001023230026161076578616D706C6503636F6D000001000100000E1000047F000001023231C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00206BE65187F773EA73C625ADF32ECA31BD924B12BA2D5FAAB19E889D71D6E491F91C9600000000
+endpacket
+
+# packet 10
+packet
+1c9684000000000200000000023232026161076578616d706c6503636f6d000001000100000e1000047f000001023233c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023232026161076578616d706c6503636f6d000001000100000e1000047f000001023233c00f0001000100000e1000047f000001
+endpacket
+
+# packet 11
+packet
+1c9684000000000200000000023234026161076578616d706c6503636f6d000001000100000e1000047f000001023235c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023234026161076578616d706c6503636f6d000001000100000e1000047f000001023235c00f0001000100000e1000047f000001
+endpacket
+
+# packet 12
+packet
+1c9684000000000200000000023236026161076578616d706c6503636f6d000001000100000e1000047f000001023237c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000023236026161076578616d706c6503636f6d000001000100000e1000047f000001023237c00f0001000100000e1000047f000001
+endpacket
+
+# packet 13
+packet
+1c9684000000000200000000023238026161076578616d706c6503636f6d000001000100000e1000047f000001023239c00f0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1C9684000000000200000001023238026161076578616D706C6503636F6D000001000100000E1000047F000001023239C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00206B1322C8E58155267B7A4FBBEA955EAF6D9A84C64AC3DCC32F155823C6F76F111C9600000000
+endpacket
+
+# packet 14
+packet
+1c96840000000002000000000133026161076578616d706c6503636f6d000001000100000e1000047f000001023330c00e0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c96840000000002000000000133026161076578616d706c6503636f6d000001000100000e1000047f000001023330c00e0001000100000e1000047f000001
+endpacket
+
+# packet 15
+packet
+1c96840000000002000000000134026161076578616d706c6503636f6d000001000100000e1000047f0000010135c00e0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c96840000000002000000000134026161076578616d706c6503636f6d000001000100000e1000047f0000010135c00e0001000100000e1000047f000001
+endpacket
+
+# packet 16
+packet
+1c96840000000002000000000136026161076578616d706c6503636f6d000001000100000e1000047f0000010137c00e0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1c96840000000002000000000136026161076578616d706c6503636f6d000001000100000e1000047f0000010137c00e0001000100000e1000047f000001
+endpacket
+
+# packet 17
+packet
+1c96840000000002000000000138026161076578616d706c6503636f6d000001000100000e1000047f0000010139c00e0001000100000e1000047f000001
+endpacket
+call 1757420114 1
+check-packet
+1C96840000000002000000010138026161076578616D706C6503636F6D000001000100000E1000047F0000010139C00E0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00209103348E4D403BCC1EC78E8CCAA664DCE265114FAD039BCC026A75C5F774924C1C9600000000
+endpacket
+
+# packet 18
+packet
+1c9684000000000200000000012a01630164076578616d706c6503636f6d000010000100000e1000222174657874207265636f72642077697468206d61696c207065726d697373696f6e73c00c000f000100000e1000070005026d78c012
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000012a01630164076578616d706c6503636f6d000010000100000e1000222174657874207265636f72642077697468206d61696c207065726d697373696f6e73c00c000f000100000e1000070005026d78c012
+endpacket
+
+# packet 19
+packet
+1c968400000000020000000004646f6e65076578616d706c6503636f6d000001000100000e100004010101010166c0110027000100000e10001101780166076578616d706c6503636f6d00
+endpacket
+call 1757420114 1
+check-packet
+1c968400000000020000000004646f6e65076578616d706c6503636f6d000001000100000e100004010101010166c0110027000100000e10001101780166076578616d706c6503636f6d00
+endpacket
+
+# packet 20
+packet
+1c9684000000000200000000026d78076578616d706c6503636f6d000001000100000e1000043ed26e07026e73c00f0001000100000e1000043ed26e07
+endpacket
+call 1757420114 1
+check-packet
+1c9684000000000200000000026d78076578616d706c6503636f6d000001000100000e1000043ed26e07026e73c00f0001000100000e1000043ed26e07
+endpacket
+
+# packet 21
+packet
+1c9684000000000200000000027274076578616d706c6503636f6d000010000100000e1000130261620263640665662267682202696a026b6c03727432c00f0010000100000e10000d06616263646566056768696a6b
+endpacket
+call 1757420114 1
+check-packet
+1C9684000000000200000001027274076578616D706C6503636F6D000010000100000E1000130261620263640665662267682202696A026B6C03727432C00F0010000100000E10000D06616263646566056768696A6B0474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C0020991A6D7C00BAF001961905D3977AEDB8205C0301EAE0B66D0E79580FD7E4AFBA1C9600000000
+endpacket
+
+# packet 22
+packet
+1c968400000000020000000003727433076578616d706c6503636f6d000010000100000e10001202616202636402656602676802696a026b6c03727434c0100010000100000e10000d06616263646566056768696a6b
+endpacket
+call 1757420114 1
+check-packet
+1c968400000000020000000003727433076578616d706c6503636f6d000010000100000e10001202616202636402656602676802696a026b6c03727434c0100010000100000e10000d06616263646566056768696a6b
+endpacket
+
+# packet 23
+packet
+1c96840000000002000000000178076578616d706c6503636f6d000027000100000e10000f0179076578616d706c6503636f6d0003666f6f0179c00e0005000100000e10000704646f6e65c00e
+endpacket
+call 1757420114 1
+check-packet
+1c96840000000002000000000178076578616d706c6503636f6d000027000100000e10000f0179076578616d706c6503636f6d0003666f6f0179c00e0005000100000e10000704646f6e65c00e
+endpacket
+
+# packet 24
+packet
+1c9684000000000100000000076578616d706c6503636f6d000006000100000e100023c00c0a686f73746d6173746572c00c5cd7fffe00000e10000003840012750000000708
+endpacket
+call 1757420114 1
+check-packet
+1C9684000000000100000001076578616D706C6503636F6D000006000100000E100023C00C0A686F73746D6173746572C00C5CD7FFFE00000E100000038400127500000007080474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C002016157B504809CE8A6BD6E785C431A6D784787B41BEBC0FB3F83CEB7D5E2722F01C9600000000
+endpacket
+# end of tsig-sign-reply-xfr test, example.com AXFR, with sign every NTH 4.
+
+# tsig-verify-reply-xfr test, example.com AXFR with TSIG every NTH from
+# signed sequence
+# The signed sequence is from tsig-sign-reply-xfr.
+# the query packet.
+packet
+1c9600000001000000000001076578616d706c6503636f6d0000fc00010000291000000000000000
+endpacket
+
+#   <number of packets> <keyname> <time> <tsig-sign-query result>
+tsig-verify-reply-xfr 24 test.key 1757420114 1
+
+# packet 1
+packet
+1c9684000001000200000002076578616d706c6503636f6d0000fc0001c00c0006000100000e100023c00c0a686f73746d6173746572c00c5cd7fffe00000e10000003840012750000000708c00c0001000100000e1000043ed26e0700002904d00000000000000474657374036b65790000fa00ff00000000003d0b686d61632d73686132353600000068c01a52012c00200fe349e19b5b3e952c097db0dfef9430734da92125ab1d4542d450774f352b4d1c9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 2
+packet
+1c9684000000000200000000076578616d706c6503636f6d000002000100000e100005026e73c00cc00c000f000100000e1000070005026d78c00c
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 3
+packet
+1c96840000000002000000000131026161076578616d706c6503636f6d000001000100000e1000047f000001023130c00e0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 4
+packet
+1c9684000000000200000000023131026161076578616d706c6503636f6d000001000100000e1000047f000001023132c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 5
+packet
+1C9684000000000200000001023133026161076578616D706C6503636F6D000001000100000E1000047F000001023134C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C0020EA1EA499445B22973D520C943E9C74862BC6199756C6EEEAEDB910B5B95F5DDE1C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 6
+packet
+1c9684000000000200000000023135026161076578616d706c6503636f6d000001000100000e1000047f000001023136c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 7
+packet
+1c9684000000000200000000023137026161076578616d706c6503636f6d000001000100000e1000047f000001023138c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 8
+packet
+1c9684000000000200000000023139026161076578616d706c6503636f6d000001000100000e1000047f0000010132c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 9
+packet
+1C9684000000000200000001023230026161076578616D706C6503636F6D000001000100000E1000047F000001023231C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00206BE65187F773EA73C625ADF32ECA31BD924B12BA2D5FAAB19E889D71D6E491F91C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 10
+packet
+1c9684000000000200000000023232026161076578616d706c6503636f6d000001000100000e1000047f000001023233c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 11
+packet
+1c9684000000000200000000023234026161076578616d706c6503636f6d000001000100000e1000047f000001023235c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 12
+packet
+1c9684000000000200000000023236026161076578616d706c6503636f6d000001000100000e1000047f000001023237c00f0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 13
+packet
+1C9684000000000200000001023238026161076578616D706C6503636F6D000001000100000E1000047F000001023239C00F0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00206B1322C8E58155267B7A4FBBEA955EAF6D9A84C64AC3DCC32F155823C6F76F111C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 14
+packet
+1c96840000000002000000000133026161076578616d706c6503636f6d000001000100000e1000047f000001023330c00e0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 15
+packet
+1c96840000000002000000000134026161076578616d706c6503636f6d000001000100000e1000047f0000010135c00e0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 16
+packet
+1c96840000000002000000000136026161076578616d706c6503636f6d000001000100000e1000047f0000010137c00e0001000100000e1000047f000001
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 17
+packet
+1C96840000000002000000010138026161076578616D706C6503636F6D000001000100000E1000047F0000010139C00E0001000100000E1000047F0000010474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C00209103348E4D403BCC1EC78E8CCAA664DCE265114FAD039BCC026A75C5F774924C1C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 18
+packet
+1c9684000000000200000000012a01630164076578616d706c6503636f6d000010000100000e1000222174657874207265636f72642077697468206d61696c207065726d697373696f6e73c00c000f000100000e1000070005026d78c012
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 19
+packet
+1c968400000000020000000004646f6e65076578616d706c6503636f6d000001000100000e100004010101010166c0110027000100000e10001101780166076578616d706c6503636f6d00
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 20
+packet
+1c9684000000000200000000026d78076578616d706c6503636f6d000001000100000e1000043ed26e07026e73c00f0001000100000e1000043ed26e07
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 21
+packet
+1C9684000000000200000001027274076578616D706C6503636F6D000010000100000E1000130261620263640665662267682202696A026B6C03727432C00F0010000100000E10000D06616263646566056768696A6B0474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C0020991A6D7C00BAF001961905D3977AEDB8205C0301EAE0B66D0E79580FD7E4AFBA1C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 22
+packet
+1c968400000000020000000003727433076578616d706c6503636f6d000010000100000e10001202616202636402656602676802696a026b6c03727434c0100010000100000e10000d06616263646566056768696a6b
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 23
+packet
+1c96840000000002000000000178076578616d706c6503636f6d000027000100000e10000f0179076578616d706c6503636f6d0003666f6f0179c00e0005000100000e10000704646f6e65c00e
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 0 1
+
+# packet 24
+packet
+1C9684000000000100000001076578616D706C6503636F6D000006000100000E100023C00C0A686F73746D6173746572C00C5CD7FFFE00000E100000038400127500000007080474657374036B65790000FA00FF00000000003D0B686D61632D73686132353600000068C01A52012C002016157B504809CE8A6BD6E785C431A6D784787B41BEBC0FB3F83CEB7D5E2722F01C9600000000
+endpacket
+#   <time> <last_packet> <function result>
+call 1757420114 1 1
+# end of tsig-verify-reply-xfr test, example.com AXFR with TSIG every NTH from
+# signed sequence
-- 
2.47.3