// NewClient creates opens a connection with the p9p server
func NewClient(ctx context.Context, conn net.Conn) (*Client, error) {
session, err := p9p.NewSession(ctx, conn)
if err != nil {
log.Println("Failed to establish 9P session to", err)
return nil, err
}
root := p9p.Fid(1)
if _, err := session.Attach(ctx, root, p9p.NOFID, "anyone", "/"); err != nil {
log.Println("Failed to Attach to filesystem", err)
return nil, err
}
usedFids := make(map[p9p.Fid]bool, 0)
freeFids := make([]p9p.Fid, 0)
for i := 0; i < 128; i++ {
fid := p9p.Fid(i)
if fid == root {
usedFids[fid] = true
} else {
freeFids = append(freeFids, fid)
usedFids[fid] = false
}
}
var m sync.Mutex
c := sync.NewCond(&m)
return &Client{conn, session, &m, c, usedFids, freeFids, root}, nil
}
p9p "github.com/docker/go-p9p"
"golang.org/x/net/context"
)
type Client struct {
conn net.Conn
session p9p.Session
m *sync.Mutex
c *sync.Cond
usedFids map[p9p.Fid]bool
freeFids []p9p.Fid
root p9p.Fid
}
var badFid = p9p.Fid(0)
var rwx = p9p.DMREAD | p9p.DMWRITE | p9p.DMEXEC
var rx = p9p.DMREAD | p9p.DMEXEC
var rw = p9p.DMREAD | p9p.DMWRITE
var r = p9p.DMREAD
var dirperm = uint32(rwx<<6 | rx<<3 | rx | p9p.DMDIR)
var fileperm = uint32(rw<<6 | r<<3 | r)
// Dial opens a connection to a 9P server
func Dial(ctx context.Context, network, address string) (*Client, error) {
log.Println("Dialling", network, address)
conn, err := net.Dial(network, address)
if err != nil {
return nil, err
}