diff options
author | Jeff Layton <jlayton@redhat.com> | 2012-10-10 15:25:23 -0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-12 00:32:01 -0400 |
commit | bfcec7087458812f575d9022b2d151641f34ee84 (patch) | |
tree | 6c0f7dd3b016992da8d113ceeaae404c6abc03a1 /fs | |
parent | 78e2e802a8519031e5858595070b39713e26340d (diff) | |
download | lwn-bfcec7087458812f575d9022b2d151641f34ee84.tar.gz lwn-bfcec7087458812f575d9022b2d151641f34ee84.zip |
audit: set the name_len in audit_inode for parent lookups
Currently, this gets set mostly by happenstance when we call into
audit_inode_child. While that might be a little more efficient, it seems
wrong. If the syscall ends up failing before audit_inode_child ever gets
called, then you'll have an audit_names record that shows the full path
but has the parent inode info attached.
Fix this by passing in a parent flag when we call audit_inode that gets
set to the value of LOOKUP_PARENT. We can then fix up the pathname for
the audit entry correctly from the get-go.
While we're at it, clean up the no-op macro for audit_inode in the
!CONFIG_AUDITSYSCALL case.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/namei.c | 14 | ||||
-rw-r--r-- | fs/open.c | 4 | ||||
-rw-r--r-- | fs/xattr.c | 8 |
3 files changed, 13 insertions, 13 deletions
diff --git a/fs/namei.c b/fs/namei.c index a7ad35c66807..6a92d988573f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1973,7 +1973,7 @@ static int do_path_lookup(int dfd, const char *name, retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd); if (likely(!retval)) - audit_inode(name, nd->path.dentry); + audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT); return retval; } @@ -2648,7 +2648,7 @@ static int do_last(struct nameidata *nd, struct path *path, error = complete_walk(nd); if (error) return error; - audit_inode(pathname, nd->path.dentry); + audit_inode(pathname, nd->path.dentry, 0); if (open_flag & O_CREAT) { error = -EISDIR; goto out; @@ -2658,7 +2658,7 @@ static int do_last(struct nameidata *nd, struct path *path, error = complete_walk(nd); if (error) return error; - audit_inode(pathname, dir); + audit_inode(pathname, dir, 0); goto finish_open; } @@ -2687,7 +2687,7 @@ static int do_last(struct nameidata *nd, struct path *path, if (error) return error; - audit_inode(pathname, dir); + audit_inode(pathname, dir, 0); error = -EISDIR; /* trailing slashes? */ if (nd->last.name[nd->last.len]) @@ -2717,7 +2717,7 @@ retry_lookup: !S_ISREG(file->f_path.dentry->d_inode->i_mode)) will_truncate = false; - audit_inode(pathname, file->f_path.dentry); + audit_inode(pathname, file->f_path.dentry, 0); goto opened; } @@ -2734,7 +2734,7 @@ retry_lookup: * create/update audit record if it already exists. */ if (path->dentry->d_inode) - audit_inode(pathname, path->dentry); + audit_inode(pathname, path->dentry, 0); /* * If atomic_open() acquired write access it is dropped now due to @@ -2799,7 +2799,7 @@ finish_lookup: error = -ENOTDIR; if ((nd->flags & LOOKUP_DIRECTORY) && !nd->inode->i_op->lookup) goto out; - audit_inode(pathname, nd->path.dentry); + audit_inode(pathname, nd->path.dentry, 0); finish_open: if (!S_ISREG(nd->inode->i_mode)) will_truncate = false; diff --git a/fs/open.c b/fs/open.c index 44da0feeca2c..a015437e1535 100644 --- a/fs/open.c +++ b/fs/open.c @@ -478,7 +478,7 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode) file = fget(fd); if (file) { - audit_inode(NULL, file->f_path.dentry); + audit_inode(NULL, file->f_path.dentry, 0); err = chmod_common(&file->f_path, mode); fput(file); } @@ -588,7 +588,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group) error = mnt_want_write_file(f.file); if (error) goto out_fput; - audit_inode(NULL, f.file->f_path.dentry); + audit_inode(NULL, f.file->f_path.dentry, 0); error = chown_common(&f.file->f_path, user, group); mnt_drop_write_file(f.file); out_fput: diff --git a/fs/xattr.c b/fs/xattr.c index 1780f062dbaf..e164dddb8e96 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -412,7 +412,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, if (!f.file) return error; dentry = f.file->f_path.dentry; - audit_inode(NULL, dentry); + audit_inode(NULL, dentry, 0); error = mnt_want_write_file(f.file); if (!error) { error = setxattr(dentry, name, value, size, flags); @@ -507,7 +507,7 @@ SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name, if (!f.file) return error; - audit_inode(NULL, f.file->f_path.dentry); + audit_inode(NULL, f.file->f_path.dentry, 0); error = getxattr(f.file->f_path.dentry, name, value, size); fdput(f); return error; @@ -586,7 +586,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size) if (!f.file) return error; - audit_inode(NULL, f.file->f_path.dentry); + audit_inode(NULL, f.file->f_path.dentry, 0); error = listxattr(f.file->f_path.dentry, list, size); fdput(f); return error; @@ -655,7 +655,7 @@ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name) if (!f.file) return error; dentry = f.file->f_path.dentry; - audit_inode(NULL, dentry); + audit_inode(NULL, dentry, 0); error = mnt_want_write_file(f.file); if (!error) { error = removexattr(dentry, name); |