Commit f28ac91b authored by Steve French's avatar Steve French Committed by Linus Torvalds

[PATCH] cifs: CIFS ioctl needed by umount.cifs utility

Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 848f3fce
...@@ -190,6 +190,7 @@ cifs_statfs(struct super_block *sb, struct kstatfs *buf) ...@@ -190,6 +190,7 @@ cifs_statfs(struct super_block *sb, struct kstatfs *buf)
#ifdef CONFIG_CIFS_EXPERIMENTAL #ifdef CONFIG_CIFS_EXPERIMENTAL
/* BB we could add a second check for a QFS Unix capability bit */ /* BB we could add a second check for a QFS Unix capability bit */
/* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */
if (pTcon->ses->capabilities & CAP_UNIX) if (pTcon->ses->capabilities & CAP_UNIX)
rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf); rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);
...@@ -599,6 +600,9 @@ struct file_operations cifs_dir_ops = { ...@@ -599,6 +600,9 @@ struct file_operations cifs_dir_ops = {
#ifdef CONFIG_CIFS_EXPERIMENTAL #ifdef CONFIG_CIFS_EXPERIMENTAL
.dir_notify = cifs_dir_notify, .dir_notify = cifs_dir_notify,
#endif /* CONFIG_CIFS_EXPERIMENTAL */ #endif /* CONFIG_CIFS_EXPERIMENTAL */
#ifdef CONFIG_CIFS_POSIX
.ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
}; };
static void static void
......
...@@ -1556,7 +1556,7 @@ typedef struct { ...@@ -1556,7 +1556,7 @@ typedef struct {
#define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 /* support getfacl/setfacl */ #define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 /* support getfacl/setfacl */
#define CIFS_UNIX_XATTR_CAP 0x00000004 /* support new namespace */ #define CIFS_UNIX_XATTR_CAP 0x00000004 /* support new namespace */
#define CIFS_UNIX_EXTATTR_CAP 0x00000008 /* support chattr/chflag */ #define CIFS_UNIX_EXTATTR_CAP 0x00000008 /* support chattr/chflag */
#define CIFS_POSIX_EXTENSIONS 0x00000010 /* support for new QFSInfo */
typedef struct { typedef struct {
/* For undefined recommended transfer size return -1 in that field */ /* For undefined recommended transfer size return -1 in that field */
__le32 OptimalTransferSize; /* bsize on some os, iosize on other os */ __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */
......
...@@ -29,6 +29,8 @@ ...@@ -29,6 +29,8 @@
#include "cifs_debug.h" #include "cifs_debug.h"
#include "cifsfs.h" #include "cifsfs.h"
#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
int cifs_ioctl (struct inode * inode, struct file * filep, int cifs_ioctl (struct inode * inode, struct file * filep,
unsigned int command, unsigned long arg) unsigned int command, unsigned long arg)
{ {
...@@ -36,8 +38,8 @@ int cifs_ioctl (struct inode * inode, struct file * filep, ...@@ -36,8 +38,8 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
#ifdef CONFIG_CIFS_POSIX #ifdef CONFIG_CIFS_POSIX
__u64 ExtAttrBits = 0; __u64 ExtAttrBits = 0;
__u64 ExtAttrMask = 0; __u64 ExtAttrMask = 0;
__u64 caps;
#endif /* CONFIG_CIFS_POSIX */ #endif /* CONFIG_CIFS_POSIX */
__u64 caps;
int xid; int xid;
struct cifs_sb_info *cifs_sb; struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *tcon; struct cifsTconInfo *tcon;
...@@ -46,12 +48,11 @@ int cifs_ioctl (struct inode * inode, struct file * filep, ...@@ -46,12 +48,11 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
xid = GetXid(); xid = GetXid();
cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg));
cifs_sb = CIFS_SB(inode->i_sb); cifs_sb = CIFS_SB(inode->i_sb);
tcon = cifs_sb->tcon; tcon = cifs_sb->tcon;
if (pSMBFile == NULL)
goto cifs_ioctl_out;
#ifdef CONFIG_CIFS_POSIX
if(tcon) if(tcon)
caps = le64_to_cpu(tcon->fsUnixInfo.Capability); caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
else { else {
...@@ -59,10 +60,22 @@ int cifs_ioctl (struct inode * inode, struct file * filep, ...@@ -59,10 +60,22 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
goto cifs_ioctl_out; goto cifs_ioctl_out;
} }
cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg));
switch(command) { 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: case EXT2_IOC_GETFLAGS:
if(CIFS_UNIX_EXTATTR_CAP & caps) { if(CIFS_UNIX_EXTATTR_CAP & caps) {
if (pSMBFile == NULL)
goto cifs_ioctl_out;
rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid, rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
&ExtAttrBits, &ExtAttrMask); &ExtAttrBits, &ExtAttrMask);
if(rc == 0) if(rc == 0)
...@@ -78,17 +91,19 @@ int cifs_ioctl (struct inode * inode, struct file * filep, ...@@ -78,17 +91,19 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
rc = -EFAULT; rc = -EFAULT;
goto cifs_ioctl_out; 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);*/ extAttrBits, &ExtAttrMask);*/
} }
cFYI(1,("set flags not implemented yet")); cFYI(1,("set flags not implemented yet"));
break; break;
#endif /* CONFIG_CIFS_POSIX */
default: default:
cFYI(1,("unsupported ioctl")); cFYI(1,("unsupported ioctl"));
return rc; break;
} }
#endif /* CONFIG_CIFS_POSIX */
cifs_ioctl_out: cifs_ioctl_out:
FreeXid(xid); FreeXid(xid);
......
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