diff options
| -rw-r--r-- | libnetfs/set-get-trans.c | 44 | ||||
| -rw-r--r-- | libnetfs/trans-callback.c | 79 |
2 files changed, 123 insertions, 0 deletions
diff --git a/libnetfs/set-get-trans.c b/libnetfs/set-get-trans.c new file mode 100644 index 00000000..5d5d7729 --- /dev/null +++ b/libnetfs/set-get-trans.c @@ -0,0 +1,44 @@ +/* Default versions of netfs_set_translator & netfs_get_translator + + Copyright (C) 1997 Free Software Foundation, Inc. + + Written by Miles Bader <miles@gnu.ai.mit.edu> + + 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + +#include "netfs.h" + +/* The user may define this function. Attempt to set the passive + translator record for FILE to ARGZ (of length ARGZLEN) for user + CRED. */ +error_t +netfs_set_translator (struct iouser *cred, struct node *np, + char *argz, size_t argzlen) +{ + return EOPNOTSUPP; +} + +/* The user may define this function (but should define it together with + netfs_set_translator). For locked node NODE with S_IPTRANS set in its + mode, look up the name of its translator. Store the name into newly + malloced storage, and return it in *ARGZ; set *ARGZ_LEN to the total + length. */ +error_t +netfs_get_translator (struct node *node, char **argz, size_t *argz_len) +{ + return EOPNOTSUPP; +} diff --git a/libnetfs/trans-callback.c b/libnetfs/trans-callback.c new file mode 100644 index 00000000..8452b005 --- /dev/null +++ b/libnetfs/trans-callback.c @@ -0,0 +1,79 @@ +/* Callback functions for starting translators + + Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + + 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 +_netfs_translator_callback1_fn (void *cookie1, void *cookie2, + uid_t *uid, gid_t *gid, + char **argz, size_t *argz_len) +{ + error_t err; + struct node *np = cookie1; + + if (! (np->nn_stat.st_mode & S_IPTRANS)) + return ENOENT; + + err = netfs_get_translator (np, argz, argz_len); + if (err) + return err; + + *uid = np->nn_stat.st_uid; + *gid = np->nn_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 +_netfs_translator_callback2_fn (void *cookie1, void *cookie2, int flags, + mach_port_t *underlying, + mach_msg_type_name_t *underlying_type) +{ + struct protid *cred; + struct idvec *uids, *gids; + struct node *node = cookie1; + + uids = make_idvec (); + gids = make_idvec (); + idvec_set_ids (uids, &node->nn_stat.st_uid, 1); + idvec_set_ids (gids, &node->nn_stat.st_gid, 1); + + cred = netfs_make_protid (netfs_make_peropen (node, flags, cookie2), + iohelp_create_iouser (uids, gids)); + if (cred) + { + *underlying = ports_get_right (cred); + *underlying_type = MACH_MSG_TYPE_MAKE_SEND; + ports_port_deref (cred); + return 0; + } + else + return errno; +} + +fshelp_fetch_root_callback1_t _netfs_translator_callback1 = + _netfs_translator_callback1_fn; +fshelp_fetch_root_callback2_t _netfs_translator_callback2 = + _netfs_translator_callback2_fn; |