From 51c51c16bf4839940124695fbee65c152f6d29c5 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Sat, 14 Mar 2026 16:14:15 -0400
Subject: authfs: implement Qid() for Session and SessionsDir

---
 back/cmd/authfs/authfs.go  |  7 -------
 back/cmd/authfs/qid.go     | 16 ++++++++++++++++
 back/cmd/authfs/sess.go    |  6 ++++++
 back/cmd/authfs/sessdir.go | 14 ++++++++++++++
 4 files changed, 36 insertions(+), 7 deletions(-)
 create mode 100644 back/cmd/authfs/qid.go

diff --git a/back/cmd/authfs/authfs.go b/back/cmd/authfs/authfs.go
index e2a8bf9..71e5128 100644
--- a/back/cmd/authfs/authfs.go
+++ b/back/cmd/authfs/authfs.go
@@ -10,13 +10,6 @@ import (
 	"git.samanthony.xyz/buth/back/auth"
 )
 
-const (
-	_ uint64 = iota
-	rootQidPath
-	usersQidPath
-	sessionsQidPath
-)
-
 type File interface {
 	Qid() (p9.QID, error)
 	// TODO
diff --git a/back/cmd/authfs/qid.go b/back/cmd/authfs/qid.go
new file mode 100644
index 0000000..7c23240
--- /dev/null
+++ b/back/cmd/authfs/qid.go
@@ -0,0 +1,16 @@
+package main
+
+const (
+	_ uint64 = iota
+	rootQidPath
+	usersQidPath
+	sessionsQidPath
+)
+
+var nextQidPath uint64 = 99
+
+func NextQidPath() uint64 {
+	p := nextQidPath
+	nextQidPath++
+	return p
+}
diff --git a/back/cmd/authfs/sess.go b/back/cmd/authfs/sess.go
index 138ea84..3d0cca3 100644
--- a/back/cmd/authfs/sess.go
+++ b/back/cmd/authfs/sess.go
@@ -4,12 +4,15 @@ import (
 	"sync/atomic"
 	"time"
 
+	p9 "github.com/Harvey-OS/ninep/protocol"
+
 	"git.samanthony.xyz/buth/back/auth"
 )
 
 type Session struct {
 	auth.SessId
 	auth.Uname
+	qid   p9.QID
 	timer *time.Timer
 	dead  *atomic.Bool
 }
@@ -20,6 +23,7 @@ func NewSession(id auth.SessId, uname auth.Uname) *Session {
 	return &Session{
 		id,
 		uname,
+		p9.QID{Path: NextQidPath()},
 		timer,
 		dead,
 	}
@@ -46,3 +50,5 @@ func (s *Session) Extend() bool {
 	// already expired
 	return false
 }
+
+func (s *Session) Qid() (p9.QID, error) { return s.qid, nil }
diff --git a/back/cmd/authfs/sessdir.go b/back/cmd/authfs/sessdir.go
index 186484f..eafc92f 100644
--- a/back/cmd/authfs/sessdir.go
+++ b/back/cmd/authfs/sessdir.go
@@ -3,6 +3,8 @@ package main
 import (
 	"sync"
 
+	p9 "github.com/Harvey-OS/ninep/protocol"
+
 	"git.samanthony.xyz/buth/back/auth"
 	"git.samanthony.xyz/buth/back/qver"
 )
@@ -58,3 +60,15 @@ func (dir *SessionsDir) Kill(id auth.SessId) {
 		dir.Version.Bump()
 	}
 }
+
+func (dir *SessionsDir) Qid() (p9.QID, error) {
+	ver, err := dir.Version.Get()
+	if err != nil {
+		return p9.QID{}, err
+	}
+	return p9.QID{
+		Type:    p9.QTDIR,
+		Version: ver,
+		Path:    sessionsQidPath,
+	}, nil
+}
-- 
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