]> git.ipfire.org Git - people/pmueller/ipfire-2.x.git/blobdiff - src/patches/suse-2.6.27.31/patches.suse/ocfs2-add-security-xattr-API.patch
Reenabled linux-xen, added patches for Xen Kernel Version 2.6.27.31,
[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.suse / ocfs2-add-security-xattr-API.patch
diff --git a/src/patches/suse-2.6.27.31/patches.suse/ocfs2-add-security-xattr-API.patch b/src/patches/suse-2.6.27.31/patches.suse/ocfs2-add-security-xattr-API.patch
new file mode 100644 (file)
index 0000000..a056804
--- /dev/null
@@ -0,0 +1,108 @@
+From: Tiger Yang <tiger.yang@oracle.com>
+Date: Fri, 14 Nov 2008 11:16:27 +0800
+Subject: ocfs2: add security xattr API
+Patch-mainline: 2.6.29
+
+This patch add security xattr set/get/list APIs to
+support security attributes in Ocfs2.
+
+Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
+Signed-off-by: Mark Fasheh <mfasheh@suse.com>
+---
+ fs/ocfs2/xattr.c |   47 +++++++++++++++++++++++++++++++++++++++++++++++
+ fs/ocfs2/xattr.h |    1 +
+ 2 files changed, 48 insertions(+), 0 deletions(-)
+
+diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
+index 6480254..db03162 100644
+--- a/fs/ocfs2/xattr.c
++++ b/fs/ocfs2/xattr.c
+@@ -35,6 +35,7 @@
+ #include <linux/init.h>
+ #include <linux/module.h>
+ #include <linux/string.h>
++#include <linux/security.h>
+ #define MLOG_MASK_PREFIX ML_XATTR
+ #include <cluster/masklog.h>
+@@ -88,12 +89,14 @@ static struct ocfs2_xattr_def_value_root def_xv = {
+ struct xattr_handler *ocfs2_xattr_handlers[] = {
+       &ocfs2_xattr_user_handler,
+       &ocfs2_xattr_trusted_handler,
++      &ocfs2_xattr_security_handler,
+       NULL
+ };
+ static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
+       [OCFS2_XATTR_INDEX_USER]        = &ocfs2_xattr_user_handler,
+       [OCFS2_XATTR_INDEX_TRUSTED]     = &ocfs2_xattr_trusted_handler,
++      [OCFS2_XATTR_INDEX_SECURITY]    = &ocfs2_xattr_security_handler,
+ };
+ struct ocfs2_xattr_info {
+@@ -4977,6 +4980,50 @@ out:
+ }
+ /*
++ * 'security' attributes support
++ */
++static size_t ocfs2_xattr_security_list(struct inode *inode, char *list,
++                                      size_t list_size, const char *name,
++                                      size_t name_len)
++{
++      const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
++      const size_t total_len = prefix_len + name_len + 1;
++
++      if (list && total_len <= list_size) {
++              memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
++              memcpy(list + prefix_len, name, name_len);
++              list[prefix_len + name_len] = '\0';
++      }
++      return total_len;
++}
++
++static int ocfs2_xattr_security_get(struct inode *inode, const char *name,
++                                  void *buffer, size_t size)
++{
++      if (strcmp(name, "") == 0)
++              return -EINVAL;
++      return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_SECURITY, name,
++                             buffer, size);
++}
++
++static int ocfs2_xattr_security_set(struct inode *inode, const char *name,
++                                  const void *value, size_t size, int flags)
++{
++      if (strcmp(name, "") == 0)
++              return -EINVAL;
++
++      return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY, name, value,
++                             size, flags);
++}
++
++struct xattr_handler ocfs2_xattr_security_handler = {
++      .prefix = XATTR_SECURITY_PREFIX,
++      .list   = ocfs2_xattr_security_list,
++      .get    = ocfs2_xattr_security_get,
++      .set    = ocfs2_xattr_security_set,
++};
++
++/*
+  * 'trusted' attributes support
+  */
+ static size_t ocfs2_xattr_trusted_list(struct inode *inode, char *list,
+diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
+index 8fbdc16..55c5256 100644
+--- a/fs/ocfs2/xattr.h
++++ b/fs/ocfs2/xattr.h
+@@ -32,6 +32,7 @@ enum ocfs2_xattr_type {
+ extern struct xattr_handler ocfs2_xattr_user_handler;
+ extern struct xattr_handler ocfs2_xattr_trusted_handler;
++extern struct xattr_handler ocfs2_xattr_security_handler;
+ extern struct xattr_handler *ocfs2_xattr_handlers[];
+ ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
+-- 
+1.5.6
+