Session uname is now a numeric UID (>=10000) separate from the session
name. Rename no longer affects identity — the mount keeps working with
the same principal.
- SessionStore uses atomic.Uint32 for UID generation
- Session.Uname() returns the immutable principal
- SessionByUname() lookup for attach-time group assignment
- fileOwnerGroup uses principal, not session name
- WithMount() passed from createSession
Session files now have owner=session_id, group=agent. Permission
checking is enforced on open for session files only:
prompt/fifo.in: mode 0022 (group+other write, owner cannot)
ctl: mode 0222 (everyone can write)
Self-prompt rejection is now a natural consequence of the permission
model — the session (owner) has no write bit on its own prompt file.
Cross-agent prompting works via group 'agent' write bit. User access
works via 'other' write bit.
On attach, sessions are added to group 'agent', other users to 'user'.
Removed the explicit self-prompt check from clunk.
Store Uname from Tattach on each connection. Reject writes to
s/{id}/prompt when the connection's uname matches the target session
(self-prompt). Cross-agent prompting remains allowed.
Add ollie-9p-mount: a FUSE-to-9P proxy that attaches with a custom
uname derived from $OLLIE_SESSION_ID. Each session gets a transparent
mount — tools use ordinary file I/O and the identity is carried by the
underlying 9P connection.
Also adds a group registry (AddGroup/RemoveGroup/InGroup) on the server
for future access control use cases.
Fids opened OWRITE or ORDWR with zero bytes written were silently
dropped on clunk — the old writeBuf-length guard prevented handleWrite
from being called, leaving the previous file content intact.
Track writable by open mode instead, and remove the blanket empty-input
early return in handleWrite. /s/new retains its own empty guard since
a zero-byte write there is meaningless.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
All /b/ routing removed from pathType, read, remove, handleWrite,
readDir, and makeStat. The batchStore field is gone from Server;
SessionStore now handles both session and batch job lifecycle.
-154 lines from server.go.
- Replace Get/Put calls with storeRead/storeWrite helpers
- Replace Wait calls with storeBlockingRead helper
- Wrapper types override Open instead of Get
- Use OpenStore for session/batch child stores
- All store fields typed as Store
- FlatDirStore alias points to BlobStore
- Server fields use BlobStore for flat stores
- Replace JobStore/SessionFileStore with Open
- Type-assert for Wait/LogInfo where needed
- Rename store variable to sfs to avoid package shadowing
Levi Neely
Levi Neely
Logan Neely
Levi Neely