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ntfs: don't change permissions when the volume is read-only. 

* check that the volume isn't read-only on write_stat.
* should help with #14029.
This commit is contained in:
Jérôme Duval 2018-03-10 19:00:51 +01:00
parent d885e1b33d
commit 8bcb93452a
1 changed files with 6 additions and 4 deletions
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10
src/add-ons/kernel/file_systems/ntfs/fs_func.c
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@ -367,7 +367,7 @@ fs_mount(fs_volume *_vol, const char *device, ulong flags, const char *args,
strlcpy(ns->devicePath, device, sizeof(ns->devicePath));
sprintf(lockname, "ntfs_lock %lx", ns->id);
sprintf(lockname, "ntfs_lock %" B_PRIx32, ns->id);
recursive_lock_init_etc(&(ns->vlock), lockname, MUTEX_FLAG_CLONE_NAME);
handle = load_driver_settings("ntfs");
@ -848,9 +848,6 @@ fs_rstat(fs_volume *_vol, fs_vnode *_node, struct stat *stbuf)
stbuf->st_mode |= 0666;
}
if (ns->flags & B_FS_IS_READONLY)
stbuf->st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
stbuf->st_uid = 0;
stbuf->st_gid = 0;
stbuf->st_ino = MREF(ni->mft_no);
@ -880,6 +877,11 @@ fs_wstat(fs_volume *_vol, fs_vnode *_node, const struct stat *st, uint32 mask)
LOCK_VOL(ns);
if ((ns->flags & B_FS_IS_READONLY) != 0) {
UNLOCK_VOL(ns);
return B_READ_ONLY_DEVICE;
}
TRACE("fs_wstat: ENTER\n");
ni = ntfs_inode_open(ns->ntvol, node->vnid);