diff options
Diffstat (limited to 'libdiskfs/io-identity.c')
| -rw-r--r-- | libdiskfs/io-identity.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/libdiskfs/io-identity.c b/libdiskfs/io-identity.c index 2cd64907..6f4e7546 100644 --- a/libdiskfs/io-identity.c +++ b/libdiskfs/io-identity.c @@ -1,5 +1,5 @@ /* libdiskfs implementation of io_identity RPC - Copyright (C) 1996 Free Software Foundation, Inc. + Copyright (C) 1996,97,98,2001,02 Free Software Foundation, Inc. Written by Michael I. Bushnell, p/BSG. This file is part of the GNU Hurd. @@ -28,26 +28,40 @@ diskfs_S_io_identity (struct protid *cred, mach_msg_type_name_t *idtype, mach_port_t *fsys, mach_msg_type_name_t *fsystype, - int *fileno) + ino_t *fileno) { struct node *np; error_t err; + ino_t inum; if (!cred) return EOPNOTSUPP; - + np = cred->po->np; mutex_lock (&np->lock); - - err = fshelp_get_identity (diskfs_port_bucket, np->dn_stat.st_ino, id); - if (!err) + inum = np->dn_stat.st_ino; + mutex_unlock (&np->lock); + + err = fshelp_get_identity (diskfs_port_bucket, inum, id); + if (! err) + { + if (cred->po->shadow_root && cred->po->shadow_root != diskfs_root_node) + { + err = fshelp_get_identity (diskfs_port_bucket, + cred->po->shadow_root->dn_stat.st_ino, + fsys); + if (err) + mach_port_deallocate (mach_task_self (), *id); + } + else + *fsys = diskfs_fsys_identity; + } + if (! err) { *idtype = MACH_MSG_TYPE_MAKE_SEND; - *fsys = diskfs_fsys_identity; *fsystype = MACH_MSG_TYPE_MAKE_SEND; - *fileno = np->dn_stat.st_ino; + *fileno = inum; } - - mutex_unlock (&np->lock); + return err; } |