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79d468d7a1d5ce1f49600f10189dbde2ca684d18
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186 Commits

Author SHA1 Message Date
dmiller
79d468d7a1 Handle 'localhost' target name in mass_dns 2025-05-09 22:47:08 +00:00
dmiller
a7ca9aba7b Also try system resolver for unqualified (no-dot) DNS names 2025-05-09 22:47:07 +00:00
dmiller
8fc566bf49 Read multiple hostnames for one address from /etc/hosts 2025-05-09 22:47:07 +00:00
dmiller
297a6242c7 mass_dns: map forward lookups to /etc/hosts first 2025-05-09 22:47:06 +00:00
dmiller
0232a370b9 Make /etc/hosts parsing more robust, part 1 2025-05-09 22:47:06 +00:00
dmiller
cf2403e9d7 Fall back to system resolution if we get NXDOMAIN and the name is non-ascii 2025-05-09 22:47:05 +00:00
dmiller
cec0cc6f99 Improve flow in nmap_mass_dns_core() 2025-05-09 22:47:05 +00:00
dmiller
6db5c9cb85 Bump copyright date 2025-02-26 17:44:43 +00:00
dmiller
a751509b0b Use u32 for s_addr; in_addr_t not defined on Windows 2024-10-07 18:31:14 +00:00
dmiller
adc7f02503 Increase DNS timeout times 2024-05-16 19:31:48 +00:00
dmiller
2907002faa mass_dns: Use slow-start logic rather than max-cap when a drop is seen 2024-05-16 19:31:47 +00:00
dmiller
c80bc2efb2 Rate-limit capacity scale-downs to 1 per MIN_DNS_TIMEOUT 2024-05-16 19:31:47 +00:00
dmiller
1e964d30f5 Correctly treat A queries as alt for -6 scans, AAAA alt for -4 2024-05-16 19:31:46 +00:00
dmiller
50ceac5753 mass_dns: only scale back for initial requests 
Some requests just take longer; they may have lots of recursion or a
slow authoritative server. That won't change on retransmissions, so if
we treat all requests and retransmissions equally, we get a long tail of
retransmits with smaller and smaller capacity (parallelism). Instead, we
will use the initial-request period to determine server capacity and
then not change it during the retransmit phase.
 2024-05-16 19:31:45 +00:00
dmiller
8b8c6fca4e mass_dns: Correctly handle write errors/timeouts 2024-05-16 19:31:45 +00:00
dmiller
7f7996977d mass_dns: keep capacity higher in the case of timeouts 2024-05-14 15:26:36 +00:00
dmiller
4a5d33f502 More aggressive timeouts; favor retries and slowing parallelism instead. 2024-05-14 15:26:36 +00:00
dmiller
16c9d36148 mass_dns: prioritize sending new requests over retransmissions 2024-05-14 15:26:35 +00:00
dmiller
a626407796 mass_dns: Be more aggressive with timeouts but slower to increase capacity. 2024-05-13 14:31:34 +00:00
dmiller
37e0f7f80b Improve string representation of DNS query in debug output 2024-05-13 14:31:34 +00:00
dmiller
e1a2577ffd Reuse DNS query ID for retransmissions 2024-05-13 14:31:33 +00:00
dmiller
5c46b3b9f7 Fix memory leak: clean up alt requests 2024-05-13 14:31:33 +00:00
dmiller
0896ed3f5d Simplify mass_dns for the case of requesting A and AAAA records 2024-05-13 14:31:32 +00:00
dmiller
43e70c09d2 Remove leftover print-debugging statement 2024-05-06 18:20:30 +00:00
dmiller
801ae30dcc Report distinct names, not number of requests (A+AAAA) 2024-05-06 18:20:29 +00:00
dmiller
4ad5e7ca22 Fix memory leak in nmap_dns.cc: call freeaddrinfo after resolve_all() 2024-05-01 22:19:33 +00:00
dmiller
019557382b mass_dns: Allow multiple addresses for each A/AAAA lookup 2024-04-30 16:39:21 +00:00
dmiller
bf2acde232 Handle chained CNAME records 2024-04-26 17:25:41 +00:00
dmiller
3cac585f69 Treat no-answers as NXDOMAIN 2024-04-26 17:25:41 +00:00
dmiller
480803e24a Support forward-DNS in mass_dns (1 addr per name) 2024-04-25 17:12:29 +00:00
dmiller
924f91eb20 Change mass_rdns to mass_dns in comments and log messages 2024-04-25 17:12:29 +00:00
dmiller
100c1ffccb Permit parsing A and AAAA RRs to a common class 2024-04-25 17:12:28 +00:00
dmiller
18beddee40 Simplify building in-addr.arpa address string 2024-04-25 17:12:28 +00:00
dmiller
0b79498c04 Simplify sscanf pattern for parsing /etc/hosts 2024-04-25 17:12:27 +00:00
dmiller
e8c7e7ba01 Generalize nmap_mass_rdns to support more than just Targets and PTR requests 2024-04-18 19:16:23 +00:00
dmiller
22ee545f7e Erase by key 2024-04-18 19:16:23 +00:00
dmiller
4201b294a8 Avoid pointer math and clarify flow 2024-04-16 17:12:28 +00:00
dmiller
f999182d0f Bump date and reapply header templates 2024-02-28 18:46:45 +00:00
dmiller
e7f8cd820b Use TIMEVAL_FSEC_SUBTRACT for clarity 2024-02-26 18:29:10 +00:00
dmiller
e633a21b5f Avoid recursion in DNS parsing; check label/name lengths 2023-05-19 01:43:17 +00:00
dmiller
6f6b2de214 Apply new license templates, bump copyright date 2023-04-14 17:11:46 +00:00
dmiller
3c6c84b5f7 Avoid copying target/source addr data when a pointer will do 2022-10-31 20:50:19 +00:00
dmiller
d969fd00ca Remove hosts file location for Win95/98/ME from search 2022-06-28 17:40:30 +00:00
dmiller
dd690b3e0b Bump copyright date and update some links [ci skip] 2022-02-18 17:38:46 +00:00
fyodor
3aec3f3a07 Update to latest copyright templates. Main change is that Insecure.Com LLC is now Nmap Software LLC 2021-11-23 16:04:37 +00:00
dmiller
74e066d356 Another round of const 2021-04-27 19:22:12 +00:00
dmiller
3adaa69cb2 Fix an out-of-bounds memory access when parsing PTR records 2021-04-27 19:22:08 +00:00
dmiller
ef2bafb09c Report system error message when fopen fails 2020-12-28 17:51:16 +00:00
dmiller
ef8213a36c Reintegrate Nmap 7.90 release branch 2020-10-05 23:00:30 +00:00
dmiller
9c1cfd8405 Correctly check for unsigned subtraction underflow. 2020-09-09 21:34:56 +00:00