1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/*
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
Written by Michael I. Bushnell.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "priv.h"
#include <fcntl.h>
/* Callback function needed for calls to fshelp_fetch_root. See
<hurd/fshelp.h> for the interface description. */
static error_t
_diskfs_translator_callback1_fn (void *cookie1, void *cookie2,
uid_t *uid, gid_t *gid,
char **argz, int *argz_len)
{
error_t err;
struct node *np = cookie1;
if (!np->istranslated)
return ENOENT;
err = diskfs_get_translator (np, argz, (u_int *) argz_len);
if (err)
return err;
*uid = np->dn_stat.st_uid;
*gid = np->dn_stat.st_gid;
return 0;
}
/* Callback function needed for calls to fshelp_fetch_root. See
<hurd/fshelp.h> for the interface description. */
static error_t
_diskfs_translator_callback2_fn (void *cookie1, void *cookie2,
int flags,
mach_port_t *underlying,
mach_msg_type_name_t *underlying_type)
{
struct node *np = cookie1;
mach_port_t *dotdot = cookie2;
struct protid *cred;
error_t err;
struct idvec *uids, *gids;
uids = make_idvec ();
gids = make_idvec ();
idvec_set_ids (uids, &np->dn_stat.st_uid, 1);
idvec_set_ids (gids, &np->dn_stat.st_gid, 1);
err =
diskfs_create_protid (diskfs_make_peropen (np, flags, *dotdot),
iohelp_create_iouser (uids, gids), &cred);
if (! err)
{
*underlying = ports_get_right (cred);
*underlying_type = MACH_MSG_TYPE_MAKE_SEND;
ports_port_deref (cred);
}
return err;
}
fshelp_fetch_root_callback1_t _diskfs_translator_callback1 =
_diskfs_translator_callback1_fn;
fshelp_fetch_root_callback2_t _diskfs_translator_callback2 =
_diskfs_translator_callback2_fn;
|
