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Fixup and test for nonrec loop case.

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git-svn-id: file:///svn/unbound/trunk@634 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2007-09-21 20:30:04 +00:00
parent 74468b2edb
commit 931efbbaa0
3 changed files with 298 additions and 5 deletions
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5
doc/Changelog
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@ -3,6 +3,11 @@
- fixup testcode lock safety (port FreeBSD).
- removes subscript has type char warnings (port Solaris 9).
- fixup of field with format type to int (port MacOS/X intel).
- added test for infinite loop case in nonRD answer validation.
It was a more general problem, but hard to reproduce. When an
unsigned rrset is being validated and the key fetched, the DS
sequence is followed, but if the final name has no DS, then no
proof is possible - the signature has been stripped off.
20 September 2007: Wouter
- fixup and test for NSEC wildcard with empty nonterminals.

279
testdata/val_refer_unsignadd.rpl vendored Normal file
View file

@ -0,0 +1,279 @@
; config options
; The island of trust is at example.com
server:
trust-anchor: "example.com. 3600 IN DS 2854 3 1 46e4ffc6e9a4793b488954bd3f0cc6af0dfb201b"
trust-anchor: "example.net. 3600 IN DNSKEY 256 3 5 AQPQ41chR9DEHt/aIzIFAqanbDlRflJoRs5yz1jFsoRIT7dWf0r+PeDuewdxkszNH6wnU4QL8pfKFRh5PIYVBLK3 ;{id = 30899 (zsk), size = 512b}"
val-override-date: "20070916134226"
stub-zone:
name: "."
stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET.
CONFIG_END
SCENARIO_BEGIN Test validator with a referral with unsigned additional
; but the additional record is from a signed zone,
; and a proper proof for no DS or DSNKEY types is forthcoming.
; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 100
ADDRESS 193.0.14.129
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
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 qname
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION AUTHORITY
; Skip .com, to provide unsigned referral A record for ns.example.net
; and go straight to example.com.
example.com. IN NS ns.example.com.
example.com. IN NS ns.example.net.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ns.example.net IN A 1.2.3.5
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
example.net. IN A
SECTION AUTHORITY
net. 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 qname
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION AUTHORITY
example.com. IN NS ns.example.com.
example.com. IN NS ns.example.net.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ns.example.net IN A 1.2.3.5
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
example.net. IN A
SECTION AUTHORITY
example.net. IN NS ns.example.net.
SECTION ADDITIONAL
ns.example.net. IN A 1.2.3.5
ENTRY_END
RANGE_END
; ns.example.com.
RANGE_BEGIN 0 100
ADDRESS 1.2.3.4
; response to example.com. DNSKEY priming query
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN DNSKEY
SECTION ANSWER
example.com. 3600 IN DNSKEY 256 3 3 ALXLUsWqUrY3JYER3T4TBJII s70j+sDS/UT2QRp61SE7S3E EXopNXoFE73JLRmvpi/UrOO/Vz4Se 6wXv/CYCKjGw06U4WRgR YXcpEhJROyNapmdIKSx hOzfLVE1gqA0PweZR8d tY3aNQSRn3sPpwJr6Mi /PqQKAMMrZ9ckJpf1+b QMOOvxgzz2U1GS18b3y ZKcgTMEaJzd/GZYzi/B N2DzQ0MsrSwYXfsNLFO Bbs8PJMW4LYIxeeOe6rUgkWOF 7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2854 (zsk), size = 1688b}
example.com. 3600 IN RRSIG DNSKEY DSA 2 3600 20070926134150 20070829134150 2854 example.com. MCwCFBQRtlR4BEv9ohi+PGFjp+AHsJuHAhRCvz0shggvnvI88DFnBDCczHUcVA== ;{id = 2854}
SECTION AUTHORITY
example.com. IN NS ns.example.com.
example.com. IN NS ns.example.net.
example.com. 3600 IN RRSIG NS 3 2 3600 20070926135752 20070829135752 2854 example.com. MCwCFEsWNXjGDFwH/0NGClonWUQlBaiFAhR/dt0asVj8M0VKs7PdTEKN/Y9i5w== ;{id = 2854}
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ns.example.com. 3600 IN RRSIG A 3 3 3600 20070926135752 20070829135752 2854 example.com. MC0CFQCMSWxVehgOQLoYclB9PIAbNP229AIUeH0vNNGJhjnZiqgIOKvs1EhzqAo= ;{id = 2854}
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. IN A 11.12.13.14
www.example.com. 3600 IN RRSIG A 3 3 3600 20070926135752 20070829135752 2854 example.com. MC0CFC6+BbFcL95vH6SOhMLGotcBospIAhUAhjfof+1VY5GsCp5b9UOD7UydBzI= ;{id = 2854}
SECTION AUTHORITY
SECTION ADDITIONAL
ENTRY_END
RANGE_END
; ns.example.net.
RANGE_BEGIN 0 100
ADDRESS 1.2.3.5
; example.com zone in ns.example.net.
; response to example.com. DNSKEY priming query
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN DNSKEY
SECTION ANSWER
example.com. 3600 IN DNSKEY 256 3 3 ALXLUsWqUrY3JYER3T4TBJII s70j+sDS/UT2QRp61SE7S3E EXopNXoFE73JLRmvpi/UrOO/Vz4Se 6wXv/CYCKjGw06U4WRgR YXcpEhJROyNapmdIKSx hOzfLVE1gqA0PweZR8d tY3aNQSRn3sPpwJr6Mi /PqQKAMMrZ9ckJpf1+b QMOOvxgzz2U1GS18b3y ZKcgTMEaJzd/GZYzi/B N2DzQ0MsrSwYXfsNLFO Bbs8PJMW4LYIxeeOe6rUgkWOF 7CC9Dh/dduQ1QrsJhmZAEFfd6ByYV+ ;{id = 2854 (zsk), size = 1688b}
example.com. 3600 IN RRSIG DNSKEY DSA 2 3600 20070926134150 20070829134150 2854 example.com. MCwCFBQRtlR4BEv9ohi+PGFjp+AHsJuHAhRCvz0shggvnvI88DFnBDCczHUcVA== ;{id = 2854}
SECTION AUTHORITY
example.com. IN NS ns.example.com.
example.com. IN NS ns.example.net.
example.com. 3600 IN RRSIG NS 3 2 3600 20070926135752 20070829135752 2854 example.com. MCwCFEsWNXjGDFwH/0NGClonWUQlBaiFAhR/dt0asVj8M0VKs7PdTEKN/Y9i5w== ;{id = 2854}
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ns.example.com. 3600 IN RRSIG A 3 3 3600 20070926135752 20070829135752 2854 example.com. MC0CFQCMSWxVehgOQLoYclB9PIAbNP229AIUeH0vNNGJhjnZiqgIOKvs1EhzqAo= ;{id = 2854}
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. IN A 11.12.13.14
www.example.com. 3600 IN RRSIG A 3 3 3600 20070926135752 20070829135752 2854 example.com. MC0CFC6+BbFcL95vH6SOhMLGotcBospIAhUAhjfof+1VY5GsCp5b9UOD7UydBzI= ;{id = 2854}
SECTION AUTHORITY
SECTION ADDITIONAL
ENTRY_END
; example.net zone in ns.example.net.
; response to DNSKEY priming query
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.net. IN DNSKEY
SECTION ANSWER
example.net. 3600 IN DNSKEY 256 3 5 AQPQ41chR9DEHt/aIzIFAqanbDlRflJoRs5yz1jFsoRIT7dWf0r+PeDuewdxkszNH6wnU4QL8pfKFRh5PIYVBLK3 ;{id = 30899 (zsk), size = 512b}
example.net. 3600 IN RRSIG DNSKEY RSASHA1 2 3600 20070926134150 20070829134150 30899 example.net. hiFzlQ8VoYgCuvIsfVuxC3mfJDqsTh0yc6abs5xMx5uEcIjb0dndFQx7INOM+imlzveEN73Hqp4OLFpFhsWLlw== ;{id = 30899}
SECTION AUTHORITY
example.net. IN NS ns.example.net.
example.net. 3600 IN RRSIG NS RSASHA1 2 3600 20070926134150 20070829134150 30899 example.net. E8JX0l4B+cSR5bkHQwOJy1pBmlLMTYCJ8EwfNMU/eCv0YhKwo26rHhn52FGisgv+Nwp7/NbhHqQ+kJgoZC94XA== ;{id = 30899}
SECTION ADDITIONAL
ns.example.net. IN A 1.2.3.5
ns.example.net. 3600 IN RRSIG A RSASHA1 3 3600 20070926134150 20070829134150 30899 example.net. x+tQMC9FhzT7Fcy1pM5NrOC7E8nLd7THPI3C6ie4EwL8PrxllqlR3q/DKB0d/m0qCOPcgN6HFOYURV1s4uAcsw== ;{id = 30899}
ENTRY_END
; deny DS and DNSKEY types
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
ns.example.net. IN DS
SECTION AUTHORITY
example.net. IN SOA ns-pri.ripe.net. ops.ripe.net. 2007092101 3600 7200 1209600 7200
example.net. 3600 IN RRSIG SOA 5 2 3600 20070926134150 20070829134150 30899 example.net. E1T+LAsAk7rtA6mnKRlgca5Lk+NJYUNNkfco1CrUp5IZZ1+QL7u7CINQBcndJkvoBwKhdVI8rz2LLW19wIywTw== ;{id = 30899}
ns.example.net IN NSEC ns-new.example.net. A AAAA RRSIG NSEC
ns.example.net. 3600 IN RRSIG NSEC 5 3 3600 20070926134150 20070829134150 30899 example.net. HLkPBWA8Hstub8e/zdp/A8xyI6+fnnMsA9oiZ20VBuSTaBknX0SXmVulNhVGfdmz9fYmYFUr1zjqvPFG+ErO8A== ;{id = 30899}
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
ns.example.net. IN DNSKEY
SECTION AUTHORITY
example.net. IN SOA ns-pri.ripe.net. ops.ripe.net. 2007092101 3600 7200 1209600 7200
example.net. 3600 IN RRSIG SOA 5 2 3600 20070926134150 20070829134150 30899 example.net. E1T+LAsAk7rtA6mnKRlgca5Lk+NJYUNNkfco1CrUp5IZZ1+QL7u7CINQBcndJkvoBwKhdVI8rz2LLW19wIywTw== ;{id = 30899}
ns.example.net IN NSEC ns-new.example.net. A RRSIG NSEC
ns.example.net. 3600 IN RRSIG NSEC 5 3 3600 20070926134150 20070829134150 30899 example.net. fAbDxuMP6lMqi71Wa9nsByG7buoJpfxyQhjps6HXOPzOC24UCCjdvZfZltlRy7Yrfrs28MjHwYEmHFmCeFpfPw== ;{id = 30899}
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
ns.example.net. IN A
SECTION ANSWER
ns.example.net. IN A 1.2.3.5
ns.example.net. 3600 IN RRSIG A RSASHA1 3 3600 20070926134150 20070829134150 30899 example.net. x+tQMC9FhzT7Fcy1pM5NrOC7E8nLd7THPI3C6ie4EwL8PrxllqlR3q/DKB0d/m0qCOPcgN6HFOYURV1s4uAcsw== ;{id = 30899}
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
ns.example.net. IN AAAA
SECTION AUTHORITY
example.net. IN SOA ns-pri.ripe.net. ops.ripe.net. 2007092101 3600 7200 1209600 7200
example.net. 3600 IN RRSIG SOA 5 2 3600 20070926134150 20070829134150 30899 example.net. E1T+LAsAk7rtA6mnKRlgca5Lk+NJYUNNkfco1CrUp5IZZ1+QL7u7CINQBcndJkvoBwKhdVI8rz2LLW19wIywTw== ;{id = 30899}
ns.example.net IN NSEC ns-new.example.net. A RRSIG NSEC
ns.example.net. 3600 IN RRSIG NSEC 5 3 3600 20070926134150 20070829134150 30899 example.net. fAbDxuMP6lMqi71Wa9nsByG7buoJpfxyQhjps6HXOPzOC24UCCjdvZfZltlRy7Yrfrs28MjHwYEmHFmCeFpfPw== ;{id = 30899}
ENTRY_END
RANGE_END
; prime cache with example.com. NS rrset.
STEP 1 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA AD NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. IN A 11.12.13.14
SECTION AUTHORITY
SECTION ADDITIONAL
ENTRY_END
; test nonrec referral validation
STEP 11 QUERY
ENTRY_BEGIN
REPLY
SECTION QUESTION
bla.example.com. IN A
ENTRY_END
STEP 12 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RA AD NOERROR
SECTION QUESTION
bla.example.com. IN A
SECTION ANSWER
SECTION AUTHORITY
example.com. IN NS ns.example.com.
example.com. IN NS ns.example.net.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ENTRY_END
SCENARIO_END

19
validator/validator.c
View file

@ -1158,6 +1158,14 @@ processFindKey(struct module_qstate* qstate, struct val_qstate* vq, int id)
}
if(vq->empty_DS_name) {
if(query_dname_compare(target_key_name,
vq->empty_DS_name) == 0) {
/* do not query for empty_DS_name again */
verbose(VERB_ALGO, "Cannot retrieve DS for signature");
vq->chase_reply->security = sec_status_bogus;
vq->state = VAL_FINISHED_STATE;
return 1;
}
current_key_name = vq->empty_DS_name;
current_key_len = vq->empty_DS_len;
}
@ -1184,8 +1192,8 @@ processFindKey(struct module_qstate* qstate, struct val_qstate* vq, int id)
* for the next DNSKEY. */
if(vq->ds_rrset)
log_info("No DS RRset");
else log_nametypeclass(VERB_ALGO, "DS RRset", vq->ds_rrset->rk.dname, LDNS_RR_TYPE_DS, LDNS_RR_CLASS_IN);
log_nametypeclass(VERB_ALGO, "DS RRset", vq->ds_rrset->rk.dname, LDNS_RR_TYPE_DS, LDNS_RR_CLASS_IN);
else log_info("No DS RRset");
if(!vq->ds_rrset || query_dname_compare(vq->ds_rrset->rk.dname,
target_key_name) != 0) {
if(!generate_request(qstate, id, target_key_name,
@ -1626,9 +1634,9 @@ primeResponseToKE(int rcode, struct dns_msg* msg, struct trust_anchor* ta,
* @param msg: result message (if rcode is OK).
* @param qinfo: from the sub query state, query info.
* @param ke: the key entry to return. It returns
* bad if the DS response fails to validate, null if the
* DS response indicated an end to secure space, good if the DS
* validated. It returns null if the DS response indicated that the
* is_bad if the DS response fails to validate, is_null if the
* DS response indicated an end to secure space, is_good if the DS
* validated. It returns ke=NULL if the DS response indicated that the
* request wasn't a delegation point.
* @return 0 on servfail error (malloc failure).
*/
@ -1785,6 +1793,7 @@ process_ds_response(struct module_qstate* qstate, struct val_qstate* vq,
int id, int rcode, struct dns_msg* msg, struct query_info* qinfo)
{
struct key_entry_key* dske = NULL;
vq->empty_DS_name = NULL;
if(!ds_response_to_ke(qstate, vq, id, rcode, msg, qinfo, &dske)) {
log_err("malloc failure in process_ds_response");
vq->key_entry = NULL; /* make it error */