sagar/softether-go
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Author SHA1 Message Date
Git Sagar
6416159164 add DHCP lease renewal at T/2 
- Add Renew() to dhcp.Client: sends REQUEST with ciaddr (RENEWING state)
- Start renewal goroutine in session at lease_time/2
- On IP change: flush TAP, reconfigure address/routes/DNS/policy routes
- On renewal failure: retry at T/4 (min 60s)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 22:05:34 +05:30
Git Sagar
61237283f5 consolidate docs into README.md, remove docs/ 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:54:38 +05:30
Git Sagar
42f8333783 rename -dhcp flag to -no-dhcp for cleaner UX 
DHCP is on by default; use -no-dhcp to disable.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:53:01 +05:30
Git Sagar
8a3ea06c9e add CLAUDE.md with project context and protocol notes 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:45:19 +05:30
Git Sagar
bbeeb8c41b tunnel: document TAP goroutine lifecycle on disconnect 
The TAP→Server goroutine can't be interrupted (TAP fd doesn't support
deadlines). It exits on next TAP frame when WriteFrames fails on the
closed connection. Document this rather than add complexity.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:29:47 +05:30
Git Sagar
b2ef8bc1bf tunnel: reduce per-frame allocations in hot path 
- TAP→server: write buf[:n] directly instead of copy to new slice
- Keepalive: reuse fixed buffer instead of allocating every 3s

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:20:24 +05:30
Git Sagar
3feb93e679 client: fix version display and rename client string 
- Rename client to "Softether Go Client"
- Fix node info int fields to use LittleEndian32 encoding matching
  the C client's OutRpcNodeInfo (Admin.c:14693)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:15:35 +05:30
Git Sagar
ed672e7311 client: rename client string to Softether Go Client 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:11:32 +05:30
Git Sagar
995504d761 netcfg: add verbose logging for TAP configuration 
Log each step: address assignment, static routes, default route,
DNS changes, and cleanup flush.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 17:08:28 +05:30
Git Sagar
17c1063e1f refactor: extract session/netcfg/tunnel, add mac/dhcp/policy-route flags 
- Split cmd/softether-go into main.go (flags, reconnect loop) and
  session.go (session lifecycle, DHCP orchestration)
- Extract network config to pkg/netcfg (TAP config, routing, DNS, policy routes)
- Move frame bridging to pkg/client/tunnel.go as Bridge() method
- Add -mac, -dhcp, -policy-route-table CLI flags
- Add SetMAC() to pkg/tap for deterministic DHCP assignments
- Update all docs to reflect new structure and flags

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-06-06 16:43:12 +05:30
Git Sagar
846ed96ff4 add .gitignore for build artifacts 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-06-06 16:15:08 +05:30
Git Sagar
829ca73b1b initial commit: standalone SoftEther VPN client in Go 
Built-in DHCP (raw Ethernet frames through tunnel), automatic reconnection,
host route management, classless static routes (option 121/249), DNS config.
Single static binary, Linux only.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-06-06 16:13:51 +05:30