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ipn: include full tailfs shares in ipn notifications

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This allows the Mac application to regain access to restricted
folders after restarts.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
This commit is contained in:
Percy Wegmann
2024-02-27 21:22:45 -06:00
committed by Percy Wegmann
parent 80f1cb6227
commit e324a5660f
5 changed files with 20 additions and 24 deletions
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5
ipn/ipnlocal/local.go
View File

@@ -68,6 +68,7 @@ import (
"tailscale.com/syncs"
"tailscale.com/tailcfg"
"tailscale.com/taildrop"
"tailscale.com/tailfs"
"tailscale.com/tka"
"tailscale.com/tsd"
"tailscale.com/tstime"
@@ -2286,9 +2287,9 @@ func (b *LocalBackend) WatchNotifications(ctx context.Context, mask ipn.NotifyWa
if err != nil {
b.logf("unable to notify initial tailfs shares: %v", err)
} else {
ini.TailFSShares = make(map[string]string, len(shares))
ini.TailFSShares = make(map[string]*tailfs.Share, len(shares))
for _, share := range shares {
ini.TailFSShares[share.Name] = share.Path
ini.TailFSShares[share.Name] = share
}
}
}

21
ipn/ipnlocal/tailfs.go
View File

@@ -7,6 +7,7 @@ import (
"encoding/json"
"errors"
"fmt"
"maps"
"os"
"regexp"
"strings"
@@ -108,7 +109,7 @@ func normalizeShareName(name string) (string, error) {
return name, nil
}
func (b *LocalBackend) tailfsAddShareLocked(share *tailfs.Share) (map[string]string, error) {
func (b *LocalBackend) tailfsAddShareLocked(share *tailfs.Share) (map[string]*tailfs.Share, error) {
fs, ok := b.sys.TailFSForRemote.GetOK()
if !ok {
return nil, errors.New("tailfs not enabled")
@@ -129,7 +130,7 @@ func (b *LocalBackend) tailfsAddShareLocked(share *tailfs.Share) (map[string]str
}
fs.SetShares(shares)
return shareNameMap(shares), nil
return maps.Clone(shares), nil
}
// TailFSRemoveShare removes the named share. Share names are forced to
@@ -154,7 +155,7 @@ func (b *LocalBackend) TailFSRemoveShare(name string) error {
return nil
}
func (b *LocalBackend) tailfsRemoveShareLocked(name string) (map[string]string, error) {
func (b *LocalBackend) tailfsRemoveShareLocked(name string) (map[string]*tailfs.Share, error) {
fs, ok := b.sys.TailFSForRemote.GetOK()
if !ok {
return nil, errors.New("tailfs not enabled")
@@ -179,20 +180,12 @@ func (b *LocalBackend) tailfsRemoveShareLocked(name string) (map[string]string,
}
fs.SetShares(shares)
return shareNameMap(shares), nil
}
func shareNameMap(sharesByName map[string]*tailfs.Share) map[string]string {
sharesMap := make(map[string]string, len(sharesByName))
for _, share := range sharesByName {
sharesMap[share.Name] = share.Path
}
return sharesMap
return maps.Clone(shares), nil
}
// tailfsNotifyShares notifies IPN bus listeners (e.g. Mac Application process)
// about the latest set of shares, supplied as a map of name -> directory.
func (b *LocalBackend) tailfsNotifyShares(shares map[string]string) {
func (b *LocalBackend) tailfsNotifyShares(shares map[string]*tailfs.Share) {
b.send(ipn.Notify{TailFSShares: shares})
}
@@ -205,7 +198,7 @@ func (b *LocalBackend) tailFSNotifyCurrentSharesLocked() {
return
}
// Do the below on a goroutine to avoid deadlocking on b.mu in b.send().
go b.tailfsNotifyShares(shareNameMap(shares))
go b.tailfsNotifyShares(maps.Clone(shares))
}
// TailFSGetShares returns the current set of shares from the state store,