[scamper-announce] scamper-cvs-20260902

[Matthew Luckie]

https://www.caida.org/catalog/software/scamper/code/scamper-cvs-20260902.tar.gz

SHA256 (scamper-cvs-20260902.tar.gz) = a2c5bc636d6351a395f57e121b4d813f46c001e7b831b538fd467b9cbc7625de
SIZE (scamper-cvs-20260902.tar.gz) = 3519877

scamper:
- host: implement RFC10029 - DNS multiple QTYPEs (mqtypes), documented
  in scamper manual page:
  https://www.caida.org/catalog/software/scamper/man/scamper.1.pdf
- host: convert host to use sigs() callback.  host no longer returns ERR
  over control socket if source address could not be determined, e.g.
  querying IPv6 server on system without IPv6.  instead, you get a host
  object with an error message.
- host: record OPT records with no elements in warts.
- trace: store probe and quote ipid values in IPv4.
- ping: store probe tcp-mss and reply tcp-mss values in warts.
- ping: do not allow an MSS value of zero in the ping command.
- dealias: store ICMP extensions.

libscamperfile:
- remove functions that should not have been part of public API:
  scamper_ping_reply_tsreply_free()
  scamper_ping_v4ts_free()
  scamper_ping_reply_v4rr_free()
  scamper_file_getfd()
  scamper_file_seteof()
  scamper_file_free()
- fix scamper_ping_reply_v4ts_hasip() and scamper_ping_reply_v4ts_ip_get()
  by checking ts->ips, add reference counting to reply_v4ts_t structures.
- add accessor functions for more recorded attributes.
- bump library version.

libscamperctrl:
- set pointers to null to prevent double frees, or referencing pointers
  after free.
- add scamper_ctrl_remove() to remove a scamper_inst_t from a scamper_ctrl_t.
- drop scamper_mux_free() which never got implemented.
- internal logic improvements.
- bump library version.

sc_remoted:
- handle MUX_CHANNEL_CLOSE messages from mux client.

Python:
- rename ScamperCtrl.do_ping() recordroute parameter to ip_rr,
  add ScamperPingReply.ip_rr attribute that holds recorded route.
- add tcp_mss option to ScamperCtrl.do_ping(), add ScamperPing.probe_tcp_mss
  and ScamperPingReply.tcp_mss attributes.
- add ScamperPingReply icmp_tso, icmp_tsr, icmp_tst attributes.
- add ScamperPingReply.probe_sport attribute.
- add ScamperPingReplyIPTS class, ScamperPingReply.ip_ts, and
  ScamperPing.probe_tsaddrs attributes, and add ip_ts parameter to
  ScamperCtrl.do_ping().
- add ScamperDealiasReply.icmp_exts attribute.
- add ScamperTraceHop.probe_ipid and ScamperTraceHop.icmp_q_ipid.
- ScamperCtrl.do_http(): pass userid parameter to http command.
- add ScamperCtrl.remove(inst: ScamperInst).
- add ScamperInst.is_done().
- rework use of ScamperVp attributes by ScamperInst.
- add ScamperUdpprobe attempts, stop_count, and wait_probe attributes.
- add ScamperHost.mqtypes attribute and ScamperCtrl.do_dns mqtypes parameter.
- sync pyi with pyx.
- housekeeping on pyx and on documentation:
  https://www.caida.org/catalog/software/scamper/python/

tests:
- unit_warts: add tests for an ICMP traceroute with probe/quote IPID
  values, a ping with icmp-time, and a host with mqtypes.
- unit_cmd_host: add mqtypes examples.

throughout:
- begin adding internal thunk layers.

sc_rxifd:
- fix -4 / -6 option handling on platforms with one but not the other.

sc_wartsdump:
- dump host mqtypes, trace probe and quote IPID values.
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