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-rw-r--r--fs/jffs2/security.c16
-rw-r--r--fs/jffs2/xattr.c26
-rw-r--r--fs/jffs2/xattr_trusted.c17
-rw-r--r--fs/jffs2/xattr_user.c16
4 files changed, 18 insertions, 57 deletions
diff --git a/fs/jffs2/security.c b/fs/jffs2/security.c
index ea79932cd665..7a28facd7175 100644
--- a/fs/jffs2/security.c
+++ b/fs/jffs2/security.c
@@ -64,24 +64,8 @@ static int jffs2_security_setxattr(const struct xattr_handler *handler,
name, buffer, size, flags);
}
-static size_t jffs2_security_listxattr(const struct xattr_handler *handler,
- struct dentry *dentry, char *list,
- size_t list_size, const char *name,
- size_t name_len)
-{
- size_t retlen = XATTR_SECURITY_PREFIX_LEN + name_len + 1;
-
- if (list && retlen <= list_size) {
- strcpy(list, XATTR_SECURITY_PREFIX);
- strcpy(list + XATTR_SECURITY_PREFIX_LEN, name);
- }
-
- return retlen;
-}
-
const struct xattr_handler jffs2_security_xattr_handler = {
.prefix = XATTR_SECURITY_PREFIX,
- .list = jffs2_security_listxattr,
.set = jffs2_security_setxattr,
.get = jffs2_security_getxattr
};
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 4c2c03663533..da3e18503c65 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -967,7 +967,8 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
struct jffs2_xattr_ref *ref, **pref;
struct jffs2_xattr_datum *xd;
const struct xattr_handler *xhandle;
- ssize_t len, rc;
+ const char *prefix;
+ ssize_t prefix_len, len, rc;
int retry = 0;
rc = check_xattr_ref_inode(c, ic);
@@ -998,18 +999,23 @@ ssize_t jffs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
}
}
xhandle = xprefix_to_handler(xd->xprefix);
- if (!xhandle)
+ if (!xhandle || (xhandle->list && !xhandle->list(dentry)))
continue;
+ prefix = xhandle->prefix ?: xhandle->name;
+ prefix_len = strlen(prefix);
+ rc = prefix_len + xd->name_len + 1;
+
if (buffer) {
- rc = xhandle->list(xhandle, dentry, buffer + len,
- size - len, xd->xname,
- xd->name_len);
- } else {
- rc = xhandle->list(xhandle, dentry, NULL, 0,
- xd->xname, xd->name_len);
+ if (rc > size - len) {
+ rc = -ERANGE;
+ goto out;
+ }
+ memcpy(buffer, prefix, prefix_len);
+ buffer += prefix_len;
+ memcpy(buffer, xd->xname, xd->name_len);
+ buffer += xd->name_len;
+ *buffer++ = 0;
}
- if (rc < 0)
- goto out;
len += rc;
}
rc = len;
diff --git a/fs/jffs2/xattr_trusted.c b/fs/jffs2/xattr_trusted.c
index 8b55fe44c777..b2555ef07a12 100644
--- a/fs/jffs2/xattr_trusted.c
+++ b/fs/jffs2/xattr_trusted.c
@@ -32,22 +32,9 @@ static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
name, buffer, size, flags);
}
-static size_t jffs2_trusted_listxattr(const struct xattr_handler *handler,
- struct dentry *dentry, char *list,
- size_t list_size, const char *name,
- size_t name_len)
+static bool jffs2_trusted_listxattr(struct dentry *dentry)
{
- size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
-
- if (!capable(CAP_SYS_ADMIN))
- return 0;
-
- if (list && retlen<=list_size) {
- strcpy(list, XATTR_TRUSTED_PREFIX);
- strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
- }
-
- return retlen;
+ return capable(CAP_SYS_ADMIN);
}
const struct xattr_handler jffs2_trusted_xattr_handler = {
diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c
index b04335b84833..539bd630b5e4 100644
--- a/fs/jffs2/xattr_user.c
+++ b/fs/jffs2/xattr_user.c
@@ -32,24 +32,8 @@ static int jffs2_user_setxattr(const struct xattr_handler *handler,
name, buffer, size, flags);
}
-static size_t jffs2_user_listxattr(const struct xattr_handler *handler,
- struct dentry *dentry, char *list,
- size_t list_size, const char *name,
- size_t name_len)
-{
- size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;
-
- if (list && retlen <= list_size) {
- strcpy(list, XATTR_USER_PREFIX);
- strcpy(list + XATTR_USER_PREFIX_LEN, name);
- }
-
- return retlen;
-}
-
const struct xattr_handler jffs2_user_xattr_handler = {
.prefix = XATTR_USER_PREFIX,
- .list = jffs2_user_listxattr,
.set = jffs2_user_setxattr,
.get = jffs2_user_getxattr
};