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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/reiserfs/xattr_security.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/reiserfs/xattr_security.c')
-rw-r--r-- | fs/reiserfs/xattr_security.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c new file mode 100644 index 000000000000..e044d5117117 --- /dev/null +++ b/fs/reiserfs/xattr_security.c @@ -0,0 +1,69 @@ +#include <linux/reiserfs_fs.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/pagemap.h> +#include <linux/xattr.h> +#include <linux/reiserfs_xattr.h> +#include <asm/uaccess.h> + +#define XATTR_SECURITY_PREFIX "security." + +static int +security_get (struct inode *inode, const char *name, void *buffer, size_t size) +{ + if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) + return -EINVAL; + + if (is_reiserfs_priv_object(inode)) + return -EPERM; + + return reiserfs_xattr_get (inode, name, buffer, size); +} + +static int +security_set (struct inode *inode, const char *name, const void *buffer, + size_t size, int flags) +{ + if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) + return -EINVAL; + + if (is_reiserfs_priv_object(inode)) + return -EPERM; + + return reiserfs_xattr_set (inode, name, buffer, size, flags); +} + +static int +security_del (struct inode *inode, const char *name) +{ + if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) + return -EINVAL; + + if (is_reiserfs_priv_object(inode)) + return -EPERM; + + return 0; +} + +static int +security_list (struct inode *inode, const char *name, int namelen, char *out) +{ + int len = namelen; + + if (is_reiserfs_priv_object(inode)) + return 0; + + if (out) + memcpy (out, name, len); + + return len; +} + + +struct reiserfs_xattr_handler security_handler = { + .prefix = XATTR_SECURITY_PREFIX, + .get = security_get, + .set = security_set, + .del = security_del, + .list = security_list, +}; |