aboutsummaryrefslogtreecommitdiff
path: root/fs/cifs/xattr.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs/xattr.c')
-rw-r--r--fs/cifs/xattr.c453
1 files changed, 266 insertions, 187 deletions
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index c1e02eff1d2..5ac836a86b1 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
@@ -21,6 +21,8 @@
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
+#include <linux/slab.h>
+#include <linux/xattr.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
@@ -29,325 +31,402 @@
#define MAX_EA_VALUE_SIZE 65535
#define CIFS_XATTR_DOS_ATTRIB "user.DosAttrib"
-#define CIFS_XATTR_USER_PREFIX "user."
-#define CIFS_XATTR_SYSTEM_PREFIX "system."
-#define CIFS_XATTR_OS2_PREFIX "os2."
-#define CIFS_XATTR_SECURITY_PREFIX ".security"
-#define CIFS_XATTR_TRUSTED_PREFIX "trusted."
-#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 */
-
+#define CIFS_XATTR_CIFS_ACL "system.cifs_acl"
+/* 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;
+ unsigned int xid;
struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
-
- if(direntry == NULL)
+ struct tcon_link *tlink;
+ struct cifs_tcon *pTcon;
+ struct super_block *sb;
+ char *full_path = 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();
-
+
cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
-
- down(&sb->s_vfs_rename_sem);
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+ pTcon = tlink_tcon(tlink);
+
+ xid = get_xid();
+
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
- if(full_path == NULL) {
- FreeXid(xid);
- return -ENOMEM;
+ if (full_path == NULL) {
+ rc = -ENOMEM;
+ goto remove_ea_exit;
}
- 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) {
+ cifs_dbg(FYI, "Null xattr names not supported\n");
+ } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)
+ && (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN))) {
+ cifs_dbg(FYI,
+ "illegal xattr request %s (only user namespace supported)\n",
+ 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,
- (__u16)0, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */
+ if (pTcon->ses->server->ops->set_EA)
+ rc = pTcon->ses->server->ops->set_EA(xid, pTcon,
+ full_path, ea_name, NULL, (__u16)0,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
}
remove_ea_exit:
- if (full_path)
- kfree(full_path);
- FreeXid(xid);
+ kfree(full_path);
+ free_xid(xid);
+ cifs_put_tlink(tlink);
#endif
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;
+ unsigned int xid;
struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct tcon_link *tlink;
+ struct cifs_tcon *pTcon;
+ 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();
cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+ pTcon = tlink_tcon(tlink);
+
+ xid = get_xid();
- down(&sb->s_vfs_rename_sem);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
- if(full_path == NULL) {
- FreeXid(xid);
- return -ENOMEM;
+ if (full_path == NULL) {
+ rc = -ENOMEM;
+ goto set_ea_exit;
}
/* return dos attributes as pseudo xattr */
/* 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(full_path)
- kfree(full_path);
- FreeXid(xid);
- return -EOPNOTSUPP;
+ if (value_size > MAX_EA_VALUE_SIZE) {
+ cifs_dbg(FYI, "size of EA value too large\n");
+ rc = -EOPNOTSUPP;
+ goto set_ea_exit;
}
- 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) {
+ cifs_dbg(FYI, "Null xattr names not supported\n");
+ } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)
+ == 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"));
- }
- ea_name += 5; /* skip past user. prefix */
- 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)
+ if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0)
+ cifs_dbg(FYI, "attempt to set cifs inode metadata\n");
+
+ ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */
+ if (pTcon->ses->server->ops->set_EA)
+ rc = pTcon->ses->server->ops->set_EA(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, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN)
+ == 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,
- (__u16)value_size, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ ea_name += XATTR_OS2_PREFIX_LEN; /* skip past os2. prefix */
+ if (pTcon->ses->server->ops->set_EA)
+ rc = pTcon->ses->server->ops->set_EA(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_CIFS_ACL,
+ strlen(CIFS_XATTR_CIFS_ACL)) == 0) {
+#ifdef CONFIG_CIFS_ACL
+ struct cifs_ntsd *pacl;
+ pacl = kmalloc(value_size, GFP_KERNEL);
+ if (!pacl) {
+ rc = -ENOMEM;
+ } else {
+ memcpy(pacl, ea_value, value_size);
+ if (pTcon->ses->server->ops->set_acl)
+ rc = pTcon->ses->server->ops->set_acl(pacl,
+ value_size, direntry->d_inode,
+ full_path, CIFS_ACL_DACL);
+ else
+ rc = -EOPNOTSUPP;
+ if (rc == 0) /* force revalidate of the inode */
+ CIFS_I(direntry->d_inode)->time = 0;
+ kfree(pacl);
+ }
+#else
+ cifs_dbg(FYI, "Set CIFS ACL not supported yet\n");
+#endif /* CONFIG_CIFS_ACL */
} 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));
+ cifs_dbg(FYI, "set POSIX ACL rc %d\n", rc);
#else
- cFYI(1,("set POSIX ACL not supported"));
+ cifs_dbg(FYI, "set POSIX ACL not supported\n");
#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));
+ cifs_dbg(FYI, "set POSIX default ACL rc %d\n", rc);
#else
- cFYI(1,("set default POSIX ACL not supported"));
+ cifs_dbg(FYI, "set default POSIX ACL not supported\n");
#endif
} else {
- cFYI(1,("illegal xattr request %s (only user namespace supported)",ea_name));
+ cifs_dbg(FYI, "illegal xattr request %s (only user namespace supported)\n",
+ 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? */
}
}
set_ea_exit:
- if (full_path)
- kfree(full_path);
- FreeXid(xid);
+ kfree(full_path);
+ free_xid(xid);
+ cifs_put_tlink(tlink);
#endif
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;
+ unsigned int xid;
struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct tcon_link *tlink;
+ struct cifs_tcon *pTcon;
+ 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();
-
cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+ pTcon = tlink_tcon(tlink);
+
+ xid = get_xid();
- down(&sb->s_vfs_rename_sem);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
- if(full_path == NULL) {
- FreeXid(xid);
- return -ENOMEM;
+ if (full_path == NULL) {
+ rc = -ENOMEM;
+ goto get_ea_exit;
}
/* 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) {
+ cifs_dbg(FYI, "Null xattr names not supported\n");
+ } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)
+ == 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) {
+ cifs_dbg(FYI, "attempt to query cifs inode metadata\n");
/* 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,
- 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)
+ ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */
+ if (pTcon->ses->server->ops->query_all_EAs)
+ rc = pTcon->ses->server->ops->query_all_EAs(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, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 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,
- 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,strlen(POSIX_ACL_XATTR_ACCESS)) == 0) {
+ ea_name += XATTR_OS2_PREFIX_LEN; /* skip past os2. prefix */
+ if (pTcon->ses->server->ops->query_all_EAs)
+ rc = pTcon->ses->server->ops->query_all_EAs(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,
+ 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
- cFYI(1,("query POSIX ACL not supported yet"));
+#else
+ cifs_dbg(FYI, "Query POSIX ACL not supported yet\n");
#endif /* CONFIG_CIFS_POSIX */
- } 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)
+ 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"));
-#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 {
- cFYI(1,("illegal xattr name request %s (only user namespace supported)",ea_name));
- }
+#else
+ cifs_dbg(FYI, "Query POSIX default ACL not supported yet\n");
+#endif /* CONFIG_CIFS_POSIX */
+ } else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL,
+ strlen(CIFS_XATTR_CIFS_ACL)) == 0) {
+#ifdef CONFIG_CIFS_ACL
+ u32 acllen;
+ struct cifs_ntsd *pacl;
+
+ if (pTcon->ses->server->ops->get_acl == NULL)
+ goto get_ea_exit; /* rc already EOPNOTSUPP */
- /* We could add an additional check for streams ie
+ pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
+ direntry->d_inode, full_path, &acllen);
+ if (IS_ERR(pacl)) {
+ rc = PTR_ERR(pacl);
+ cifs_dbg(VFS, "%s: error %zd getting sec desc\n",
+ __func__, rc);
+ } else {
+ if (ea_value) {
+ if (acllen > buf_size)
+ acllen = -ERANGE;
+ else
+ memcpy(ea_value, pacl, acllen);
+ }
+ rc = acllen;
+ kfree(pacl);
+ }
+#else
+ cifs_dbg(FYI, "Query CIFS ACL not supported yet\n");
+#endif /* CONFIG_CIFS_ACL */
+ } else if (strncmp(ea_name,
+ XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0) {
+ cifs_dbg(FYI, "Trusted xattr namespace not supported yet\n");
+ } else if (strncmp(ea_name,
+ XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) {
+ cifs_dbg(FYI, "Security xattr namespace not supported yet\n");
+ } else
+ cifs_dbg(FYI,
+ "illegal xattr request %s (only user namespace supported)\n",
+ ea_name);
+
+ /* 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:
- if (full_path)
- kfree(full_path);
- FreeXid(xid);
+ kfree(full_path);
+ free_xid(xid);
+ cifs_put_tlink(tlink);
#endif
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;
+ unsigned int xid;
struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
- struct super_block * sb;
- char * full_path;
+ struct tcon_link *tlink;
+ struct cifs_tcon *pTcon;
+ 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();
cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ return -EOPNOTSUPP;
+
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+ pTcon = tlink_tcon(tlink);
+
+ xid = get_xid();
- down(&sb->s_vfs_rename_sem);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
- if(full_path == NULL) {
- FreeXid(xid);
- return -ENOMEM;
+ if (full_path == NULL) {
+ rc = -ENOMEM;
+ goto list_ea_exit;
}
/* return dos attributes as pseudo xattr */
/* 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,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (full_path)
- kfree(full_path);
- FreeXid(xid);
+ if (pTcon->ses->server->ops->query_all_EAs)
+ rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
+ full_path, NULL, data, buf_size,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+list_ea_exit:
+ kfree(full_path);
+ free_xid(xid);
+ cifs_put_tlink(tlink);
#endif
return rc;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:59:55 +0000