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Diffstat (limited to 'fs/cifs/xattr.c')
-rw-r--r--fs/cifs/xattr.c229
1 files changed, 117 insertions, 112 deletions
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 18fcec190f8..f61e433d281 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/xattr.c
*
- * Copyright (c) International Business Machines Corp., 2003
+ * Copyright (c) International Business Machines Corp., 2003, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -37,50 +37,52 @@
#define XATTR_TRUSTED_PREFIX_LEN 8
#define XATTR_SECURITY_PREFIX_LEN 9
/* BB need to add server (Samba e.g) support for security and trusted prefix */
-
-int cifs_removexattr(struct dentry * direntry, const char * ea_name)
+
+int cifs_removexattr(struct dentry *direntry, const char *ea_name)
{
int rc = -EOPNOTSUPP;
#ifdef CONFIG_CIFS_XATTR
int xid;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
-
- if(direntry == NULL)
+ struct super_block *sb;
+ char *full_path;
+
+ if (direntry == NULL)
return -EIO;
- if(direntry->d_inode == NULL)
+ if (direntry->d_inode == NULL)
return -EIO;
sb = direntry->d_inode->i_sb;
- if(sb == NULL)
+ if (sb == NULL)
return -EIO;
xid = GetXid();
-
+
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
-
+
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
- if(ea_name == NULL) {
- cFYI(1,("Null xattr names not supported"));
- } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5)
- && (strncmp(ea_name,CIFS_XATTR_OS2_PREFIX,4))) {
- cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name));
+ if (ea_name == NULL) {
+ cFYI(1, ("Null xattr names not supported"));
+ } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5)
+ && (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4))) {
+ cFYI(1,
+ ("illegal xattr request %s (only user namespace supported)",
+ ea_name));
/* BB what if no namespace prefix? */
/* Should we just pass them to server, except for
system and perhaps security prefixes? */
} else {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto remove_ea_exit;
- ea_name+=5; /* skip past user. prefix */
- rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,NULL,
+ ea_name += 5; /* skip past user. prefix */
+ rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, NULL,
(__u16)0, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
@@ -91,23 +93,23 @@ remove_ea_exit:
return rc;
}
-int cifs_setxattr(struct dentry * direntry, const char * ea_name,
- const void * ea_value, size_t value_size, int flags)
+int cifs_setxattr(struct dentry *direntry, const char *ea_name,
+ const void *ea_value, size_t value_size, int flags)
{
int rc = -EOPNOTSUPP;
#ifdef CONFIG_CIFS_XATTR
int xid;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct super_block *sb;
+ char *full_path;
- if(direntry == NULL)
+ if (direntry == NULL)
return -EIO;
- if(direntry->d_inode == NULL)
+ if (direntry->d_inode == NULL)
return -EIO;
sb = direntry->d_inode->i_sb;
- if(sb == NULL)
+ if (sb == NULL)
return -EIO;
xid = GetXid();
@@ -115,7 +117,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
@@ -123,67 +125,69 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
/* return alt name if available as pseudo attr */
/* if proc/fs/cifs/streamstoxattr is set then
- search server for EAs or streams to
+ search server for EAs or streams to
returns as xattrs */
- if(value_size > MAX_EA_VALUE_SIZE) {
- cFYI(1,("size of EA value too large"));
+ if (value_size > MAX_EA_VALUE_SIZE) {
+ cFYI(1, ("size of EA value too large"));
kfree(full_path);
FreeXid(xid);
return -EOPNOTSUPP;
}
- if(ea_name == NULL) {
- cFYI(1,("Null xattr names not supported"));
- } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (ea_name == NULL) {
+ cFYI(1, ("Null xattr names not supported"));
+ } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto set_ea_exit;
- if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) {
- cFYI(1,("attempt to set cifs inode metadata"));
+ if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) {
+ cFYI(1, ("attempt to set cifs inode metadata"));
}
ea_name += 5; /* skip past user. prefix */
- rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value,
+ rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value,
(__u16)value_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
- } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto set_ea_exit;
ea_name += 4; /* skip past os2. prefix */
- rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value,
+ rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value,
(__u16)value_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
- int temp;
- temp = strncmp(ea_name,POSIX_ACL_XATTR_ACCESS,
+ int temp;
+ temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
strlen(POSIX_ACL_XATTR_ACCESS));
if (temp == 0) {
#ifdef CONFIG_CIFS_POSIX
- if(sb->s_flags & MS_POSIXACL)
- rc = CIFSSMBSetPosixACL(xid, pTcon,full_path,
- ea_value, (const int)value_size,
- ACL_TYPE_ACCESS,cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ if (sb->s_flags & MS_POSIXACL)
+ rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
+ ea_value, (const int)value_size,
+ ACL_TYPE_ACCESS, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1,("set POSIX ACL rc %d",rc));
+ cFYI(1, ("set POSIX ACL rc %d", rc));
#else
- cFYI(1,("set POSIX ACL not supported"));
+ cFYI(1, ("set POSIX ACL not supported"));
#endif
- } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
+ } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT,
+ strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
#ifdef CONFIG_CIFS_POSIX
- if(sb->s_flags & MS_POSIXACL)
- rc = CIFSSMBSetPosixACL(xid, pTcon,full_path,
- ea_value, (const int)value_size,
+ if (sb->s_flags & MS_POSIXACL)
+ rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
+ ea_value, (const int)value_size,
ACL_TYPE_DEFAULT, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- cFYI(1,("set POSIX default ACL rc %d",rc));
+ cFYI(1, ("set POSIX default ACL rc %d", rc));
#else
- cFYI(1,("set default POSIX ACL not supported"));
+ cFYI(1, ("set default POSIX ACL not supported"));
#endif
} else {
- cFYI(1,("illegal xattr request %s (only user namespace supported)",ea_name));
+ cFYI(1, ("illegal xattr request %s (only user namespace"
+ " supported)", ea_name));
/* BB what if no namespace prefix? */
- /* Should we just pass them to server, except for
+ /* Should we just pass them to server, except for
system and perhaps security prefixes? */
}
}
@@ -195,23 +199,23 @@ set_ea_exit:
return rc;
}
-ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
- void * ea_value, size_t buf_size)
+ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
+ void *ea_value, size_t buf_size)
{
ssize_t rc = -EOPNOTSUPP;
#ifdef CONFIG_CIFS_XATTR
int xid;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct super_block *sb;
+ char *full_path;
- if(direntry == NULL)
+ if (direntry == NULL)
return -EIO;
- if(direntry->d_inode == NULL)
+ if (direntry->d_inode == NULL)
return -EIO;
sb = direntry->d_inode->i_sb;
- if(sb == NULL)
+ if (sb == NULL)
return -EIO;
xid = GetXid();
@@ -220,42 +224,42 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
/* return dos attributes as pseudo xattr */
/* return alt name if available as pseudo attr */
- if(ea_name == NULL) {
- cFYI(1,("Null xattr names not supported"));
- } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (ea_name == NULL) {
+ cFYI(1, ("Null xattr names not supported"));
+ } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto get_ea_exit;
- if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) {
- cFYI(1,("attempt to query cifs inode metadata"));
+ if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) {
+ cFYI(1, ("attempt to query cifs inode metadata"));
/* revalidate/getattr then populate from inode */
} /* BB add else when above is implemented */
ea_name += 5; /* skip past user. prefix */
- rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value,
+ rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
- } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
goto get_ea_exit;
ea_name += 4; /* skip past os2. prefix */
- rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value,
+ rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value,
buf_size, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
- } else if(strncmp(ea_name,POSIX_ACL_XATTR_ACCESS,
+ } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
strlen(POSIX_ACL_XATTR_ACCESS)) == 0) {
#ifdef CONFIG_CIFS_POSIX
- if(sb->s_flags & MS_POSIXACL)
+ if (sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
- ea_value, buf_size, ACL_TYPE_ACCESS,
+ ea_value, buf_size, ACL_TYPE_ACCESS,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
__u16 fid;
@@ -272,39 +276,40 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
CIFSSMBClose(xid, pTcon, fid);
}
} */ /* BB enable after fixing up return data */
-
-#else
- cFYI(1,("query POSIX ACL not supported yet"));
+#else
+ cFYI(1, ("query POSIX ACL not supported yet"));
#endif /* CONFIG_CIFS_POSIX */
- } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,
+ } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT,
strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
#ifdef CONFIG_CIFS_POSIX
- if(sb->s_flags & MS_POSIXACL)
+ if (sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
- ea_value, buf_size, ACL_TYPE_DEFAULT,
+ ea_value, buf_size, ACL_TYPE_DEFAULT,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
-#else
- cFYI(1,("query POSIX default ACL not supported yet"));
+#else
+ cFYI(1, ("query POSIX default ACL not supported yet"));
#endif
- } else if(strncmp(ea_name,
- CIFS_XATTR_TRUSTED_PREFIX,XATTR_TRUSTED_PREFIX_LEN) == 0) {
- cFYI(1,("Trusted xattr namespace not supported yet"));
- } else if(strncmp(ea_name,
- CIFS_XATTR_SECURITY_PREFIX,XATTR_SECURITY_PREFIX_LEN) == 0) {
- cFYI(1,("Security xattr namespace not supported yet"));
+ } else if (strncmp(ea_name,
+ CIFS_XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0) {
+ cFYI(1, ("Trusted xattr namespace not supported yet"));
+ } else if (strncmp(ea_name,
+ CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) {
+ cFYI(1, ("Security xattr namespace not supported yet"));
} else {
- cFYI(1,("illegal xattr name request %s (only user namespace supported)",ea_name));
+ cFYI(1,
+ ("illegal xattr request %s (only user namespace supported)",
+ ea_name));
}
- /* We could add an additional check for streams ie
+ /* We could add an additional check for streams ie
if proc/fs/cifs/streamstoxattr is set then
- search server for EAs or streams to
+ search server for EAs or streams to
returns as xattrs */
- if(rc == -EINVAL)
- rc = -EOPNOTSUPP;
+ if (rc == -EINVAL)
+ rc = -EOPNOTSUPP;
get_ea_exit:
kfree(full_path);
@@ -313,34 +318,34 @@ get_ea_exit:
return rc;
}
-ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
+ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
{
ssize_t rc = -EOPNOTSUPP;
#ifdef CONFIG_CIFS_XATTR
int xid;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct super_block *sb;
+ char *full_path;
- if(direntry == NULL)
+ if (direntry == NULL)
return -EIO;
- if(direntry->d_inode == NULL)
+ if (direntry->d_inode == NULL)
return -EIO;
sb = direntry->d_inode->i_sb;
- if(sb == NULL)
+ if (sb == NULL)
return -EIO;
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
return -EOPNOTSUPP;
xid = GetXid();
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
@@ -348,11 +353,11 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
/* return alt name if available as pseudo attr */
/* if proc/fs/cifs/streamstoxattr is set then
- search server for EAs or streams to
+ search server for EAs or streams to
returns as xattrs */
- rc = CIFSSMBQAllEAs(xid,pTcon,full_path,data,buf_size,
+ rc = CIFSSMBQAllEAs(xid, pTcon, full_path, data, buf_size,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(full_path);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 15:33:32 +0000