HeaderParser::Parse reset m_bShouldUnmask to FALSE on any non-HTTP
maskType, including the continuation chunk of an HTTP connection whose
read offset is already past the "POST " header. When a large packet
(e.g. a >1460-byte process list) was split by MSS, the second chunk
latched the flag to FALSE, so the next new HTTP-masked packet was no
longer unmasked: CheckHead then read the HTTP header as the flag,
returned FLAG_UNKNOWN/PARSER_FAILED, and the packet was dropped. This
explains "first packet succeeds, subsequent packets vanish", and why
the MFC process dialog went blank after killing a process (the confirm
packet never reached NotifyProc).
Only clear the flag when the connection was not already determined to
be HTTP (initial -1, or already confirmed non-HTTP).
Co-Authored-By: deepseek-v4-pro
Client first packet on every sub-connection signs (clientID || timestamp ||
nonce) and waits for server ack. Server verifies signature and pins clientID
on the sub-connection ctx, eliminating IP-reverse-lookup unreliability for
NAT/localhost scenarios. Sub-conn coverage: Win 12 sites, Linux/macOS 3-4
each. Main connection keeps existing TOKEN_LOGIN flow unchanged.
Includes:
- Protocol structs sized to 512/256 bytes with reserved space for future
extensions (locale, OS info, session token, etc.)
- 5-min timestamp tolerance (Kerberos-grade replay window)
- 10-sec client wait for cross-pacific / weak-network tolerance
- Fix RemoveFromHostList side-effect ordering: MarkDeviceOffline and
m_ActiveWndW.erase now only fire when ctx is actually removed from
m_HostList, preventing sub-conn disconnects from misreporting main as
offline (regression introduced by auth-set clientID on sub ctx)
- Fix latent bug: IOCPClient::m_conn was never assigned in ctor, leaving
GetConnectionAddress() always NULL and FileManager V2 transfer's
srcClientID always 0
Breaking change: new client cannot use sub-features against old server.
New server tolerates legacy clients (no auth). Future tightening can reject
unauthenticated sub-connections via IsAuthenticated() flag.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
