revocation of trust anchors works.

git-svn-id: file:///svn/unbound/trunk@1846 be551aaa-1e26-0410-a405-d3ace91eadb9

diff --git a/daemon/worker.c b/daemon/worker.c
index 3785831bf718c22ce63e522c0a8fa4777b1a7181..97cf40d0a15fca84adb61d0140fe17d793372d2f 100644 (file)
--- a/daemon/worker.c
+++ b/daemon/worker.c
@@ -950,7 +950,8 @@ void worker_probe_timer_cb(void* arg)
        tv.tv_sec = (time_t)autr_probe_timer(&worker->env);
        tv.tv_usec = 0;
 #endif
-       comm_timer_set(worker->probe_timer, &tv);
+       if(tv.tv_sec != 0)
+               comm_timer_set(worker->probe_timer, &tv);
 }
 
 struct worker* 

diff --git a/doc/Changelog b/doc/Changelog
index fc0edf3a7c48e96536e7b07eb7bbdfeadee6d449..6035ba5572a6d51933b49da8c6340410f3a12600 100644 (file)
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,6 +1,11 @@
 22 September 2009: Wouter
        - autotrust test with algorithm rollover, new ordering of checks
          assists in orderly rollover.
+       - autotrust test with algorithm rollover to unknown algorithm.
+         checks if new keys are supported before adding them.
+       - autotrust test with trust point revocation, becomes unsigned.
+       - fix DNSSEC-missing-signature detection for minimal responses
+         for qtype DNSKEY (assumes DNSKEY occurs at zone apex).
 
 18 September 2009: Wouter
        - autotrust tests, fix trustpoint timer deletion code.

diff --git a/iterator/iter_utils.c b/iterator/iter_utils.c
index 63b9a7d5335f000ea566e1e93524281b6bef52c4..e28fcf4133c874816cf1023918f70c2f9d0d4af7 100644 (file)
--- a/iterator/iter_utils.c
+++ b/iterator/iter_utils.c
@@ -605,6 +605,11 @@ int iter_msg_from_zone(struct dns_msg* msg, struct delegpt* dp,
           reply_find_rrset_section_ns(msg->rep, dp->name, dp->namelen,
                LDNS_RR_TYPE_NS, dclass))
                return 1;
+       /* a DNSKEY set is expected at the zone apex as well */
+       /* this is for 'minimal responses' for DNSKEYs */
+       if(reply_find_rrset_section_an(msg->rep, dp->name, dp->namelen,
+               LDNS_RR_TYPE_DNSKEY, dclass))
+               return 1;
        return 0;
 }
 

diff --git a/testdata/autotrust_revtp.rpl b/testdata/autotrust_revtp.rpl
new file mode 100644 (file)
index 0000000..9ba8092
--- /dev/null
+++ b/testdata/autotrust_revtp.rpl
@@ -0,0 +1,148 @@
+; config options
+server:
+       target-fetch-policy: "0 0 0 0 0"
+       log-time-ascii: yes
+stub-zone:
+       name: "."
+       stub-addr: 193.0.14.129         # K.ROOT-SERVERS.NET.
+AUTOTRUST_FILE example.com
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;last_success: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;next_probe_time: 1258967360 ;;Mon Nov 23 10:09:20 2009
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.    10800   IN      DNSKEY  257 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16486 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+AUTOTRUST_END
+CONFIG_END
+
+SCENARIO_BEGIN Test autotrust with trust point revocation
+
+; K-ROOT
+RANGE_BEGIN 0 100
+       ADDRESS 193.0.14.129
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id copy_query
+REPLY QR AA
+SECTION QUESTION
+. IN NS
+SECTION ANSWER
+. IN NS k.root-servers.net.
+SECTION ADDITIONAL
+k.root-servers.net IN A 193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+com. IN NS
+SECTION AUTHORITY
+com. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+RANGE_END
+
+; a.gtld-servers.net.
+RANGE_BEGIN 0 100
+       ADDRESS 192.5.6.30
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+example.com. IN NS
+SECTION AUTHORITY
+example.com. IN NS ns.example.com.
+SECTION ADDITIONAL
+ns.example.com. IN A 1.2.3.4
+ENTRY_END
+RANGE_END
+
+; ns.example.com.
+RANGE_BEGIN 0 100
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+
+; revoked keys
+
+example.com.    10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b}
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16614 (ksk), size = 512b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091124111500 20091018111500 55710 example.com. zOSlB1iwtlP2lum1RK0WoDQrMVj0JKwk2E5Mu1okzV38hAx3Xm9IGMK6WrNkVVLmx4OkhYmdPVA95jVsFpwLMw== ;{id = 55710}
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091124111500 20091018111500 16614 example.com. qP49cCYP3lvNnLBYty/JxAwHqBIGjpup5zQ7qpjPnaZpBb/TlpOhY17LBZrqD86VvBbEVz5tkxC9UrCy85ePDQ== ;{id = 16614}
+
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A 10.20.30.40
+ENTRY_END
+RANGE_END
+
+RANGE_END
+
+; set date/time to Mon Nov 23 10:46:40 2009
+STEP 5 TIME_PASSES EVAL ${1258962400 + 7200}
+STEP 6 TRAFFIC   ; do the probe
+STEP 7 ASSIGN t0 = ${time}
+STEP 8 ASSIGN probe0 = ${range 0 ${timeout} 0}
+STEP 9 ASSIGN tp = ${1258962400}
+
+; the auto probing should have been done now.
+STEP 11 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;REVOKED
+; The zone has all keys revoked, and is
+; considered as if it has no trust anchors.
+; the remainder of the file is the last probe.
+; to restart the trust anchor, overwrite this file.
+; with one containing valid DNSKEYs or DSes.
+;;id: example.com. 1
+;;last_queried: ${$t0} ;;${ctime $t0}
+;;last_success: ${$t0} ;;${ctime $t0}
+;;next_probe_time: ${0} ;;${ctime 0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16614 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+STEP 20 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+www.example.com. IN A
+ENTRY_END
+
+; correct unsigned response works after trust point revocation.
+STEP 30 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA NOERROR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A   10.20.30.40
+ENTRY_END
+
+SCENARIO_END

diff --git a/testdata/autotrust_revtp_read.rpl b/testdata/autotrust_revtp_read.rpl
new file mode 100644 (file)
index 0000000..b7ea63a
--- /dev/null
+++ b/testdata/autotrust_revtp_read.rpl
@@ -0,0 +1,109 @@
+; config options
+server:
+       target-fetch-policy: "0 0 0 0 0"
+       log-time-ascii: yes
+       val-override-date: '20091018111500'
+stub-zone:
+       name: "."
+       stub-addr: 193.0.14.129         # K.ROOT-SERVERS.NET.
+AUTOTRUST_FILE example.com
+; autotrust trust anchor file
+;;REVOKED
+; The zone has all keys revoked, and is
+; considered as if it has no trust anchors.
+; the remainder of the file is the last probe.
+; to restart the trust anchor, overwrite this file.
+; with one containing valid DNSKEYs or DSes.
+;;id: example.com. 1
+;;last_queried: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;last_success: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;next_probe_time: ${0} ;;${ctime 0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16614 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+AUTOTRUST_END
+CONFIG_END
+
+SCENARIO_BEGIN Test autotrust with revoked trust point read back from config
+
+; K-ROOT
+RANGE_BEGIN 0 100
+       ADDRESS 193.0.14.129
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id copy_query
+REPLY QR AA
+SECTION QUESTION
+. IN NS
+SECTION ANSWER
+. IN NS k.root-servers.net.
+SECTION ADDITIONAL
+k.root-servers.net IN A 193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+com. IN NS
+SECTION AUTHORITY
+com. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+RANGE_END
+
+; a.gtld-servers.net.
+RANGE_BEGIN 0 100
+       ADDRESS 192.5.6.30
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+example.com. IN NS
+SECTION AUTHORITY
+example.com. IN NS ns.example.com.
+SECTION ADDITIONAL
+ns.example.com. IN A 1.2.3.4
+ENTRY_END
+RANGE_END
+
+; ns.example.com.
+RANGE_BEGIN 0 100
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A 10.20.30.40
+ENTRY_END
+RANGE_END
+
+RANGE_END
+
+STEP 20 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+www.example.com. IN A
+ENTRY_END
+
+; correct unsigned response works after trust point revocation.
+STEP 30 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA NOERROR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A   10.20.30.40
+ENTRY_END
+
+SCENARIO_END

diff --git a/testdata/autotrust_revtp_use.rpl b/testdata/autotrust_revtp_use.rpl
new file mode 100644 (file)
index 0000000..a96bf18
--- /dev/null
+++ b/testdata/autotrust_revtp_use.rpl
@@ -0,0 +1,143 @@
+; config options
+server:
+       target-fetch-policy: "0 0 0 0 0"
+       log-time-ascii: yes
+       val-override-date: '20091018111500'
+stub-zone:
+       name: "."
+       stub-addr: 193.0.14.129         # K.ROOT-SERVERS.NET.
+AUTOTRUST_FILE example.com
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;last_success: 1258962400 ;;Mon Nov 23 08:46:40 2009
+;;next_probe_time: 1258967360 ;;Mon Nov 23 10:09:20 2009
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.    10800   IN      DNSKEY  257 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16486 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=1258962400 ;;Mon Nov 23 08:46:40 2009
+AUTOTRUST_END
+CONFIG_END
+
+SCENARIO_BEGIN Test autotrust with trust point revocation and instant use
+; so not a probe that discovers it but a user query.
+
+; K-ROOT
+RANGE_BEGIN 0 100
+       ADDRESS 193.0.14.129
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id copy_query
+REPLY QR AA
+SECTION QUESTION
+. IN NS
+SECTION ANSWER
+. IN NS k.root-servers.net.
+SECTION ADDITIONAL
+k.root-servers.net IN A 193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+com. IN NS
+SECTION AUTHORITY
+com. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+RANGE_END
+
+; a.gtld-servers.net.
+RANGE_BEGIN 0 100
+       ADDRESS 192.5.6.30
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+example.com. IN NS
+SECTION AUTHORITY
+example.com. IN NS ns.example.com.
+SECTION ADDITIONAL
+ns.example.com. IN A 1.2.3.4
+ENTRY_END
+RANGE_END
+
+; ns.example.com.
+RANGE_BEGIN 0 100
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+
+; revoked keys
+
+example.com.    10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b}
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16614 (ksk), size = 512b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091124111500 20091018111500 55710 example.com. zOSlB1iwtlP2lum1RK0WoDQrMVj0JKwk2E5Mu1okzV38hAx3Xm9IGMK6WrNkVVLmx4OkhYmdPVA95jVsFpwLMw== ;{id = 55710}
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091124111500 20091018111500 16614 example.com. qP49cCYP3lvNnLBYty/JxAwHqBIGjpup5zQ7qpjPnaZpBb/TlpOhY17LBZrqD86VvBbEVz5tkxC9UrCy85ePDQ== ;{id = 16614}
+
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A 10.20.30.40
+ENTRY_END
+RANGE_END
+
+RANGE_END
+
+STEP 20 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+www.example.com. IN A
+ENTRY_END
+
+; correct unsigned response works after trust point revocation.
+STEP 30 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA NOERROR
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com. IN A   10.20.30.40
+ENTRY_END
+
+STEP 37 ASSIGN t0 = ${time}
+STEP 41 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;REVOKED
+; The zone has all keys revoked, and is
+; considered as if it has no trust anchors.
+; the remainder of the file is the last probe.
+; to restart the trust anchor, overwrite this file.
+; with one containing valid DNSKEYs or DSes.
+;;id: example.com. 1
+;;last_queried: ${$t0} ;;${ctime $t0}
+;;last_success: ${$t0} ;;${ctime $t0}
+;;next_probe_time: ${0} ;;${ctime 0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAas/cAhCFXvBUgTSNZCvQp0pLx1dY+7rXR0hH4/3EUgWmsmbYUpI1qD0xhwKD/oYGEwAm291fyWJ9c0oVxXDEK8= ;{id = 16614 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+SCENARIO_END

diff --git a/testdata/autotrust_rollalgo_unknown.rpl b/testdata/autotrust_rollalgo_unknown.rpl
new file mode 100644 (file)
index 0000000..5660a8e
--- /dev/null
+++ b/testdata/autotrust_rollalgo_unknown.rpl
@@ -0,0 +1,323 @@
+; config options
+server:
+       target-fetch-policy: "0 0 0 0 0"
+       log-time-ascii: yes
+stub-zone:
+       name: "."
+       stub-addr: 193.0.14.129         # K.ROOT-SERVERS.NET.
+; initial content (say from dig example.com DNSKEY > example.com.key) 
+AUTOTRUST_FILE example.com
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b}
+example.com.   10800   IN      DNSKEY  256 3 5 AQPQ41chR9DEHt/aIzIFAqanbDlRflJoRs5yz1jFsoRIT7dWf0r+PeDuewdxkszNH6wnU4QL8pfKFRh5PIYVBLK3 ;{id = 30899 (zsk), size = 512b}
+AUTOTRUST_END
+CONFIG_END
+
+SCENARIO_BEGIN Test autotrust with algorithm rollover to unknown algo
+; from RSASHA1(5) to 'unknown' (157)
+; 157 is really the algocode for HMACMD5, which is not used for DNSSEC.
+; the signatures are made with a DSA key (02855) but the algorithm is
+; edited (afterwards) to be 157.  So the RRSIGs do not verify.
+
+; K-ROOT
+RANGE_BEGIN 0 100
+       ADDRESS 193.0.14.129
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id copy_query
+REPLY QR AA
+SECTION QUESTION
+. IN NS
+SECTION ANSWER
+. IN NS k.root-servers.net.
+SECTION ADDITIONAL
+k.root-servers.net IN A 193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+com. IN NS
+SECTION AUTHORITY
+com. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+RANGE_END
+
+; a.gtld-servers.net.
+RANGE_BEGIN 0 100
+       ADDRESS 192.5.6.30
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR
+SECTION QUESTION
+example.com. IN NS
+SECTION AUTHORITY
+example.com. IN NS ns.example.com.
+SECTION ADDITIONAL
+ns.example.com. IN A 1.2.3.4
+ENTRY_END
+RANGE_END
+
+; ns.example.com.  KSK 55582
+RANGE_BEGIN 0 10
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+www.example.com. IN A
+SECTION ANSWER
+www.example.com.       3600    IN      A       10.20.30.40
+www.example.com.       3600    IN      RRSIG   A 5 3 3600 20090924111500 20090821111500 30899 example.com. pYGxVLsWUvOp1wSf0iwPap+JnECfC5GAm1lRqy3YEqecNGld7U7x/5Imo3CerbdZrVptUQs2oH0lcjwYJXMnsw== ;{id = 30899}
+SECTION AUTHORITY
+example.com.   3600    IN      NS      ns.example.com.
+example.com.   3600    IN      RRSIG   NS 5 2 3600 20090924111500 20090821111500 30899 example.com. J5wxRq0jgwQL6yy530kvo9cHqNAUHV8IF4dvaYZL0bNraO2Oe6dVXqlJl4+cxNHI2TMsstwFPr2Zz8tv6Az2mQ== ;{id = 30899}
+SECTION ADDITIONAL
+ns.example.com.        3600    IN      A       1.2.3.4
+ns.example.com.        3600    IN      RRSIG   A 5 3 3600 20090924111500 20090821111500 30899 example.com. JsXbS18oyc0zkVaOWGSFdIQuOsZKflT0GraT9afDPoWLCgH4ApF7jNgfJV7Pqy1sTBRajME5IUAhpANwGBuW4A== ;{id = 30899}
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+; KSK 1
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b}
+; ZSK 1
+example.com.   10800   IN      DNSKEY  256 3 5 AQPQ41chR9DEHt/aIzIFAqanbDlRflJoRs5yz1jFsoRIT7dWf0r+PeDuewdxkszNH6wnU4QL8pfKFRh5PIYVBLK3 ;{id = 30899 (zsk), size = 512b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20090924111500 20090821111500 30899 example.com. b/HK231jIQLX8IhlZfup3r0yhpXaasbPE6LzxoEVVvWaTZWcLmeV8jDIcn0qO7Yvs7bIJN20lwVAV0GcHH3hWQ== ;{id = 30899}
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20090924111500 20090821111500 55582 example.com. PCHme1QLoULxqjhg5tMlpR0qJlBfstEUVq18TtNoKQe9le1YhJ9caheXcTWoK+boLhXxg9u6Yyvq8FboQh0OjA== ;{id = 55582}
+ENTRY_END
+RANGE_END
+
+; ns.example.com.  KSK 55582 and 02855
+RANGE_BEGIN 11 40
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+; KSK 1
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b}
+; KSK 2
+example.com.   10800   IN      DNSKEY  257 3 157 ALXLUsWqUrY3JYER3T4TBJIIs70j+sDS/UT2QRp61SE7S3EEXopNXoFE73JLRmvpi/UrOO/Vz4Se6wXv/CYCKjGw06U4WRgRYXcpEhJROyNapmdIKSxhOzfLVE1gqA0PweZR8dtY3aNQSRn3sPpwJr6Mi/PqQKAMMrZ9ckJpf1+bQMOOvxgzz2U1GS18b3yZKcgTMEaJzd/GZYzi/BN2DzQ0MsrSwYXfsNLFOBbs8PJMW4LYIxeeOe6rUgkWOF7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2855 (ksk), size = 1688b}
+; and two ZSKs (omitted) for both algorithms.
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091024111500 20090921111500 55582 example.com. Wp40P+Odx5gh1Zpjwa1YBwwKnqhobPSkv55sEb21vvKpLE2NNt7B6vZqRLg+bBiW0T/vRdo4w+7whKANVuPrtA== ;{id = 55582}
+example.com.   10800   IN      RRSIG   DNSKEY 157 2 10800 20091024111500 20090921111500 2855 example.com. AKdhmjqEbe0STsFNq/UxOidElaWHWCy2hSPQ7oN0Tsq56w6Hsk72PpM= ;{id = 2855}
+ENTRY_END
+RANGE_END
+
+; ns.example.com.  KSK 55582 and 02855 (signatures updated)
+RANGE_BEGIN 41 50
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+; KSK 1
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b}
+; KSK 2
+example.com.   10800   IN      DNSKEY  257 3 157 ALXLUsWqUrY3JYER3T4TBJIIs70j+sDS/UT2QRp61SE7S3EEXopNXoFE73JLRmvpi/UrOO/Vz4Se6wXv/CYCKjGw06U4WRgRYXcpEhJROyNapmdIKSxhOzfLVE1gqA0PweZR8dtY3aNQSRn3sPpwJr6Mi/PqQKAMMrZ9ckJpf1+bQMOOvxgzz2U1GS18b3yZKcgTMEaJzd/GZYzi/BN2DzQ0MsrSwYXfsNLFOBbs8PJMW4LYIxeeOe6rUgkWOF7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2855 (ksk), size = 1688b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091124111500 20091018111500 55582 example.com. FXY4N99Udr/2Q+9oU4Dil9B8XQCBcaU0NlqJ9HnwZoLqzKiPhtxNlldU2Ab5TmuXfnkTT1bTYvsq5Dz6P3ezbw== ;{id = 55582}
+example.com.   10800   IN      RRSIG   DNSKEY 157 2 10800 20091124111500 20091018111500 2855 example.com. ABJyZ97htJyBFk5wsKml3YAz81FpXkQKdJeC++fB5ysvl3i+zKJFzTo= ;{id = 2855}
+ENTRY_END
+RANGE_END
+
+; ns.example.com.  KSK 55582-REVOKED and 02855
+RANGE_BEGIN 51 60
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+; KSK 1
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b}
+; KSK 2
+example.com.   10800   IN      DNSKEY  257 3 157 ALXLUsWqUrY3JYER3T4TBJIIs70j+sDS/UT2QRp61SE7S3EEXopNXoFE73JLRmvpi/UrOO/Vz4Se6wXv/CYCKjGw06U4WRgRYXcpEhJROyNapmdIKSxhOzfLVE1gqA0PweZR8dtY3aNQSRn3sPpwJr6Mi/PqQKAMMrZ9ckJpf1+bQMOOvxgzz2U1GS18b3yZKcgTMEaJzd/GZYzi/BN2DzQ0MsrSwYXfsNLFOBbs8PJMW4LYIxeeOe6rUgkWOF7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2855 (ksk), size = 1688b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 5 2 10800 20091224111500 20091118111500 55710 example.com. w5hXwGyeLHWTzdStx4yjB7LNzt86u9A+Qpl3rtQlTKN/qkWIT+Hxa3M32P6jhFTpf+Iq1K9T06mKM21L3TQAOg== ;{id = 55710}
+example.com.   10800   IN      RRSIG   DNSKEY 157 2 10800 20091224111500 20091118111500 2855 example.com. AFAbqLJsTDBfwAipE84ETdFTfzKHs7pzdyzjTKHR2VXygGvHY4QsBaA= ;{id = 2855}
+; wrong keytag: 55582
+ENTRY_END
+RANGE_END
+
+; ns.example.com.  KSK 02855
+RANGE_BEGIN 61 70
+       ADDRESS 1.2.3.4
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA
+SECTION QUESTION
+example.com. IN DNSKEY
+SECTION ANSWER
+; KSK 2
+example.com.   10800   IN      DNSKEY  257 3 157 ALXLUsWqUrY3JYER3T4TBJIIs70j+sDS/UT2QRp61SE7S3EEXopNXoFE73JLRmvpi/UrOO/Vz4Se6wXv/CYCKjGw06U4WRgRYXcpEhJROyNapmdIKSxhOzfLVE1gqA0PweZR8dtY3aNQSRn3sPpwJr6Mi/PqQKAMMrZ9ckJpf1+bQMOOvxgzz2U1GS18b3yZKcgTMEaJzd/GZYzi/BN2DzQ0MsrSwYXfsNLFOBbs8PJMW4LYIxeeOe6rUgkWOF7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2855 (ksk), size = 1688b}
+; signatures
+example.com.   10800   IN      RRSIG   DNSKEY 157 2 10800 20101224111500 20101118111500 2855 example.com. AJv9ujre3iUykHlhJpLYPqsXq12lmQp+AHUPSPpE5zuUhXAPjbnbewk= ;{id = 2855}
+ENTRY_END
+RANGE_END
+
+; set date/time to Aug 24 09:46:40  (2009).
+STEP 5 TIME_PASSES ELAPSE 1251100000
+STEP 6 TRAFFIC   ; the initial probe
+STEP 7 ASSIGN t0 = ${time}
+STEP 8 ASSIGN probe0 = ${range 4800 ${timeout} 5400}
+
+; the auto probing should have been done now.
+STEP 10 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: ${$t0} ;;${ctime $t0}
+;;last_success: ${$t0} ;;${ctime $t0}
+;;next_probe_time: ${$t0 + $probe0} ;;${ctime $t0 + $probe0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+; key prepublished.  First poll. 30 days later
+STEP 11 TIME_PASSES EVAL ${30*24*3600}
+STEP 12 TRAFFIC
+STEP 13 ASSIGN t1 = ${time}
+STEP 14 ASSIGN probe1 = ${range 4800 ${timeout} 5400}
+STEP 15 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: ${$t1} ;;${ctime $t1}
+;;last_success: ${$t1} ;;${ctime $t1}
+;;next_probe_time: ${$t1 + $probe1} ;;${ctime $t1 + $probe1}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+; Second poll. 10 days later
+STEP 21 TIME_PASSES EVAL ${10*24*3600}
+STEP 22 TRAFFIC
+STEP 23 ASSIGN t2 = ${time}
+STEP 24 ASSIGN probe2 = ${range 4800 ${timeout} 5400}
+STEP 25 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: ${$t2} ;;${ctime $t2}
+;;last_success: ${$t2} ;;${ctime $t2}
+;;next_probe_time: ${$t2 + $probe2} ;;${ctime $t2 + $probe2}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+; Third poll. 10 days later
+STEP 31 TIME_PASSES EVAL ${10*24*3600}
+STEP 32 TRAFFIC
+STEP 33 ASSIGN t3 = ${time}
+STEP 34 ASSIGN probe3 = ${range 4800 ${timeout} 5400}
+STEP 35 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: ${$t3} ;;${ctime $t3}
+;;last_success: ${$t3} ;;${ctime $t3}
+;;next_probe_time: ${$t3 + $probe3} ;;${ctime $t3 + $probe3}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+; 11 days later, hold down has lapsed.
+STEP 41 TIME_PASSES EVAL ${11*24*3600}
+STEP 42 TRAFFIC
+STEP 43 ASSIGN t4 = ${time}
+STEP 44 ASSIGN probe4 = ${range 4800 ${timeout} 5400}
+STEP 45 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;id: example.com. 1
+;;last_queried: ${$t4} ;;${ctime $t4}
+;;last_success: ${$t4} ;;${ctime $t4}
+;;next_probe_time: ${$t4 + $probe4} ;;${ctime $t4 + $probe4}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  257 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55582 (ksk), size = 512b} ;;state=2 [  VALID  ] ;;count=0 ;;lastchange=${$t0} ;;${ctime $t0}
+FILE_END
+
+; 30 days later, the old key is revoked
+STEP 51 TIME_PASSES EVAL ${30*24*3600}
+STEP 52 TRAFFIC
+STEP 53 ASSIGN t5 = ${time}
+; no more timeout
+STEP 54 ASSIGN probe5 = ${range 0 ${timeout} 0}
+STEP 55 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;REVOKED
+; The zone has all keys revoked, and is
+; considered as if it has no trust anchors.
+; the remainder of the file is the last probe.
+; to restart the trust anchor, overwrite this file.
+; with one containing valid DNSKEYs or DSes.
+;;id: example.com. 1
+;;last_queried: ${$t5} ;;${ctime $t5}
+;;last_success: ${$t5} ;;${ctime $t5}
+;;next_probe_time: 0 ;;${ctime 0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t5} ;;${ctime $t5}
+FILE_END
+
+; 370 days later, the old key is removed from storage
+STEP 61 TIME_PASSES EVAL ${370*24*3600}
+STEP 62 TRAFFIC
+STEP 63 ASSIGN t6 = ${time}
+STEP 64 ASSIGN probe6 = ${range 0 ${timeout} 0}
+STEP 65 CHECK_AUTOTRUST example.com
+FILE_BEGIN
+; autotrust trust anchor file
+;;REVOKED
+; The zone has all keys revoked, and is
+; considered as if it has no trust anchors.
+; the remainder of the file is the last probe.
+; to restart the trust anchor, overwrite this file.
+; with one containing valid DNSKEYs or DSes.
+;;id: example.com. 1
+;;last_queried: ${$t5} ;;${ctime $t5}
+;;last_success: ${$t5} ;;${ctime $t5}
+;;next_probe_time: 0 ;;${ctime 0}
+;;query_failed: 0
+;;query_interval: 5400
+;;retry_time: 3600
+example.com.   10800   IN      DNSKEY  385 3 5 AwEAAc3Z5DQDJpH4oPdNtC4BUQHk50XMD+dHr4r8psHmivIa83hxR5CRgCtd9sENCW9Ae8OIO19xw9t/RPaEAqQa+OE= ;{id = 55710 (ksk), size = 512b} ;;state=4 [ REVOKED ] ;;count=0 ;;lastchange=${$t5} ;;${ctime $t5}
+FILE_END
+
+
+SCENARIO_END

diff --git a/validator/autotrust.c b/validator/autotrust.c
index f74e9ba4b805133981ece37bf6ca64a92a04882b..a565b423b9f33f6d5074a0e14214bfee150d2839 100644 (file)
--- a/validator/autotrust.c
+++ b/validator/autotrust.c
@@ -1204,6 +1204,16 @@ update_events(struct module_env* env, struct trust_anchor* tp,
                         * other revoked keys are not 'added' again */
                        continue;
                }
+               /* is a key of this type supported?. Note rr_list and
+                * packed_rrset are in the same order. */
+               if(!dnskey_algo_is_supported(dnskey_rrset, i)) {
+                       /* skip unknown algorithm key, it is useless to us */
+                       log_nametypeclass(VERB_DETAIL, "trust point has "
+                               "unsupported algorithm at", 
+                               tp->name, LDNS_RR_TYPE_DNSKEY, tp->dclass);
+                       continue;
+               }
+
                /* is it new? if revocation bit set, find the unrevoked key */
                if(!find_key(tp, rr, &ta)) {
                        ldns_rr_list_deep_free(r); /* malloc fail in compare*/
@@ -1579,13 +1589,20 @@ set_next_probe(struct module_env* env, struct trust_anchor* tp,
        return 1;
 }
 
-/** Delete trust point that was revoked */
+/** Revoke and Delete a trust point */
 static void
 autr_tp_remove(struct module_env* env, struct trust_anchor* tp)
 {
        struct trust_anchor key;
        struct autr_point_data pd;
        time_t mold, mnew;
+
+       log_nametypeclass(VERB_OPS, "trust point was revoked",
+               tp->name, LDNS_RR_TYPE_DNSKEY, tp->dclass);
+       tp->autr->revoked = 1;
+       tp->autr->next_probe_time = 0; /* no more probing for it */
+       autr_write_file(env, tp);
+
        /* save name */
        memset(&key, 0, sizeof(key));
        memset(&pd, 0, sizeof(pd));
@@ -1670,8 +1687,6 @@ int autr_process_prime(struct module_env* env, struct val_env* ve,
                        /* no more keys, all are revoked */
                        /* this is a success! */
                        tp->autr->last_success = *env->now;
-                       tp->autr->revoked = 1;
-                       autr_write_file(env, tp);
                        autr_tp_remove(env, tp);
                        return 0; /* trust point removed */
                }
@@ -1727,8 +1742,6 @@ int autr_process_prime(struct module_env* env, struct val_env* ve,
                }
                if(!tp->ds_rrset && !tp->dnskey_rrset) {
                        /* no more keys, all are revoked */
-                       tp->autr->revoked = 1;
-                       autr_write_file(env, tp);
                        autr_tp_remove(env, tp);
                        return 0; /* trust point removed */
                }
@@ -1917,12 +1930,16 @@ autr_probe_timer(struct module_env* env)
 {
        struct trust_anchor* tp;
        uint32_t next_probe = 3600;
+       int num = 0;
        verbose(VERB_ALGO, "autotrust probe timer callback");
        /* while there are still anchors to probe */
        while( (tp = todo_probe(env, &next_probe)) ) {
                /* make a probe for this anchor */
                probe_anchor(env, tp);
+               num++;
        }
-       verbose(VERB_ALGO, "autotrust probe timer callback done");
+       if(num == 0)
+               return 0; /* no trust points to probe */
+       verbose(VERB_ALGO, "autotrust probe timer %d callbacks done", num);
        return next_probe;
 }

diff --git a/validator/autotrust.h b/validator/autotrust.h
index d9a201543f8abd97eee66a99376b58364e54c880..1c3c9552bcf87d0a2eb269d58474f001c0fe6454 100644 (file)
--- a/validator/autotrust.h
+++ b/validator/autotrust.h
@@ -145,6 +145,7 @@ size_t autr_get_num_anchors(struct val_anchors* anchors);
  * Process probe timer.  Add new probes if needed.
  * @param env: module environment with time, with anchors and with the mesh.
  * @return time of next probe (in seconds from now).
+ *     If 0, then there is no next probe anymore (trust points deleted).
  */
 uint32_t autr_probe_timer(struct module_env* env);