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path: root/internal/namespace/namespace.go
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2026-05-29refactor: optimize file cleanups, propagate exit codes, and fix MakefileJames O'Doherty
- Unlink the temporary bootstrap launcher binary immediately after opening a read-only descriptor to it, then execute via `/proc/self/fd/<fd>` to ensure zero-disk footprint on execution. - Unlink temporary `/tmp/resolvconf*` files immediately after successful bind-mounting over `/etc/resolv.conf`. - Prune parent ephemeral profile directories when unpinning a namespace, leaving zero directories behind once empty. - Propagate the exact exit status of the wrapped command to the host process using `errors.As` and `*exec.ExitError` instead of defaulting to exit code 1. - Added E2E automated test `TestExitCodePropagation` to verify exit status delivery. - Added the `$(BINARY)` target to `.PHONY` in the Makefile to delegate dependency tracking to Go's compiler cache, ensuring modified Go files are rebuilt during `make test`.
2026-05-29feat: implement userspace wireguard data-path and unprivileged host fd-passingJames O'Doherty
- Implement complete rootless network namespace bootstrap via C launcher using unshare(CLONE_NEWUSER | CLONE_NEWNS | CLONE_NEWNET). - Resolve unprivileged network isolation blackhole via host-socket preservation (FD passing): open client UDP sockets on the host pre-isolation, clear O_CLOEXEC, and ingest them via custom `FDBind` inside the sandbox. - Implement isolated routing table automation over `tun0` (addresses, MTU, default routes). - Implement persistent, multi-process namespace sharing and joining using reference-counted PID files and the setns system call. - Write robust, self-contained E2E data plane test suites in `tests/e2e/e2e_test.go` using a mock UDP listener. - Update project documentation (`README.md` and `AGENTS.md`) to reflect completed milestones. - Ensure 100% test passing rate and zero lint/staticcheck warnings.
2026-05-22Security hardening: prevent shell injection and null-byte crashes, implement ↵James O'Doherty
8-bit clean argument fuzzing and portable E2E binary discovery
2026-05-22feat: add argument verification diagnostic and secure temp files for launcherJames O'Doherty
2026-05-22docs: update README and AGENTS.md to reflect embedded launcher architectureJames O'Doherty
2026-05-22feat: implement rootless network isolation bootstrap and C launcherJames O'Doherty
2026-05-22Implement platform compatibility stubs and update AGENTS.mdJames O'Doherty