diff options
Diffstat (limited to 'fs/cifs/ioctl.c')
| -rw-r--r-- | fs/cifs/ioctl.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index a4f1c34a8dc7..711bb7a3a98e 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -29,6 +29,8 @@ #include "cifs_debug.h" #include "cifsfs.h" +#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) + int cifs_ioctl (struct inode * inode, struct file * filep, unsigned int command, unsigned long arg) { @@ -36,8 +38,8 @@ int cifs_ioctl (struct inode * inode, struct file * filep, #ifdef CONFIG_CIFS_POSIX __u64 ExtAttrBits = 0; __u64 ExtAttrMask = 0; - __u64 caps; #endif /* CONFIG_CIFS_POSIX */ + __u64 caps; int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; @@ -46,12 +48,11 @@ int cifs_ioctl (struct inode * inode, struct file * filep, xid = GetXid(); + cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg)); + cifs_sb = CIFS_SB(inode->i_sb); tcon = cifs_sb->tcon; - if (pSMBFile == NULL) - goto cifs_ioctl_out; -#ifdef CONFIG_CIFS_POSIX if(tcon) caps = le64_to_cpu(tcon->fsUnixInfo.Capability); else { @@ -59,10 +60,22 @@ int cifs_ioctl (struct inode * inode, struct file * filep, goto cifs_ioctl_out; } - cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg)); switch(command) { + case CIFS_IOC_CHECKUMOUNT: + cFYI(1,("User unmount attempted")); + /* BB FIXME - add missing code here FIXME */ + if(cifs_sb->mnt_uid == current->uid) + rc = 0; + else { + rc = -EACCES; + cFYI(1,("uids do not match")); + } + break; +#ifdef CONFIG_CIFS_POSIX case EXT2_IOC_GETFLAGS: if(CIFS_UNIX_EXTATTR_CAP & caps) { + if (pSMBFile == NULL) + goto cifs_ioctl_out; rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid, &ExtAttrBits, &ExtAttrMask); if(rc == 0) @@ -78,17 +91,19 @@ int cifs_ioctl (struct inode * inode, struct file * filep, rc = -EFAULT; goto cifs_ioctl_out; } - /* rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid, + if (pSMBFile == NULL) + goto cifs_ioctl_out; + /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid, extAttrBits, &ExtAttrMask);*/ } cFYI(1,("set flags not implemented yet")); break; +#endif /* CONFIG_CIFS_POSIX */ default: cFYI(1,("unsupported ioctl")); - return rc; + break; } -#endif /* CONFIG_CIFS_POSIX */ cifs_ioctl_out: FreeXid(xid); |