Re: [PATCH v2 11/25] security: add hooks for set/get/remove of fscaps

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On Fri, Mar 01, 2024 at 04:59:16PM +0100, Roberto Sassu wrote:
> On Wed, 2024-02-21 at 15:24 -0600, Seth Forshee (DigitalOcean) wrote:
> > In preparation for moving fscaps out of the xattr code paths, add new
> > security hooks. These hooks are largely needed because common kernel
> > code will pass around struct vfs_caps pointers, which EVM will need to
> > convert to raw xattr data for verification and updates of its hashes.
> > 
> > Signed-off-by: Seth Forshee (DigitalOcean) <sforshee@xxxxxxxxxx>
> > ---
> >  include/linux/lsm_hook_defs.h |  7 +++++
> >  include/linux/security.h      | 33 +++++++++++++++++++++
> >  security/security.c           | 69 +++++++++++++++++++++++++++++++++++++++++++
> >  3 files changed, 109 insertions(+)
> > 
> > diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
> > index 76458b6d53da..7b3c23f9e4a5 100644
> > --- a/include/linux/lsm_hook_defs.h
> > +++ b/include/linux/lsm_hook_defs.h
> > @@ -152,6 +152,13 @@ LSM_HOOK(int, 0, inode_get_acl, struct mnt_idmap *idmap,
> >  	 struct dentry *dentry, const char *acl_name)
> >  LSM_HOOK(int, 0, inode_remove_acl, struct mnt_idmap *idmap,
> >  	 struct dentry *dentry, const char *acl_name)
> > +LSM_HOOK(int, 0, inode_set_fscaps, struct mnt_idmap *idmap,
> > +	 struct dentry *dentry, const struct vfs_caps *caps, int flags);
> > +LSM_HOOK(void, LSM_RET_VOID, inode_post_set_fscaps, struct mnt_idmap *idmap,
> > +	 struct dentry *dentry, const struct vfs_caps *caps, int flags);
> > +LSM_HOOK(int, 0, inode_get_fscaps, struct mnt_idmap *idmap, struct dentry *dentry);
> > +LSM_HOOK(int, 0, inode_remove_fscaps, struct mnt_idmap *idmap,
> > +	 struct dentry *dentry);
> 
> Uhm, there should not be semicolons here.

Yes, I've fixed this already for the next version.

Thanks,
Seth




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