dmiller
3d36f2b005
Hedge against runaway recursion. See #3130
2025-06-30 23:33:31 +00:00
dmiller
f5a9b18a40
Handle Nsock errors in DNS read handler by disconnecting the server.
2025-06-30 23:29:17 +00:00
dmiller
4ed1ce0eee
Avoid passing empty string to nsock_pool_set_device
...
Nsock checks for NULL, but not for empty string. Rather than making
Nsock decide, each app will decide whether to call
nsock_pool_set_device, with all currently skipping the call if device is
an empty string.
2025-06-09 18:38:59 +00:00
dmiller
2216e3856e
Handle DNS::NONE requests (ignore)
2025-06-09 17:33:59 +00:00
dmiller
0f48a510eb
Windows DNS: only use servers from the chosen device if -e is used
2025-05-23 19:03:02 +00:00
dmiller
d59349fe99
Ensure we can connect to DNS servers with requested source address
2025-05-23 18:05:51 +00:00
dmiller
3a4b053af6
Fix build breakage: MSVC-suggested syntax for enum isn't portable.
2025-05-23 18:05:51 +00:00
dmiller
b72decbcc5
Fix typo in previous commit
2025-05-23 17:29:34 +00:00
dmiller
d72beec963
Use GetAdaptersAddresses, not Registry, for DNS servers
...
In addition to being simpler, this approach allows us to limit to
adapters that are up and configured. Fixes #3114
2025-05-23 17:13:06 +00:00
dmiller
a55708ba5e
Correctly handle DNS server connection failures
2025-05-23 17:13:06 +00:00
dmiller
ec3b1d264b
Reintegrate 7.97 changes
2025-05-15 15:42:03 +00:00
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
