Re: [PATCH] libselinux: add selinux_openssh_contexts_path()

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On Thu, May 21, 2015 at 06:24:41PM +0200, Dominick Grift wrote:
> On Thu, May 21, 2015 at 06:14:22PM +0200, Petr Lautrbach wrote:
> > openssh in Fedora uses "sshd_net_t" type for privilege separated
> > processes in the preauthentication phase. Similarly, openssh portable uses
> > "sftp_t" for internal-sftp processes. Both type are hardcoded what is not ideal.
> > Therefore selinux_openssh_contexts_path() was created to get a path where sshd
> > can get a correct types prepared by a distribution or an administrator.
> 
> I requested this feature and i am using this feature in my personal policy. So hereby my ACK for what it is worth.
> 
> However:
> 
> That SYSTEMD_CONTEXTS though, that must have been a mistake?

As far as i am concerned this commit should be reverted:

https://github.com/SELinuxProject/selinux/commit/ce2a8848ad45e375cfdb58cebe28bc12431bb3db

I just did a grep -ri systemd_contexts in the systemd repository and nothing returned. I also cannot place that commit message.

> 
> I do not believe that this is used or that it is needed/wanted.
> 
> > 
> > Signed-off-by: Petr Lautrbach <plautrba@xxxxxxxxxx>
> > ---
> >  libselinux/include/selinux/selinux.h |  1 +
> >  libselinux/src/file_path_suffixes.h  |  1 +
> >  libselinux/src/selinux_config.c      | 12 ++++++++++--
> >  libselinux/src/selinux_internal.h    |  1 +
> >  4 files changed, 13 insertions(+), 2 deletions(-)
> > 
> > diff --git a/libselinux/include/selinux/selinux.h b/libselinux/include/selinux/selinux.h
> > index d0eb5c6..4beb170 100644
> > --- a/libselinux/include/selinux/selinux.h
> > +++ b/libselinux/include/selinux/selinux.h
> > @@ -543,6 +543,7 @@ extern const char *selinux_virtual_image_context_path(void);
> >  extern const char *selinux_lxc_contexts_path(void);
> >  extern const char *selinux_x_context_path(void);
> >  extern const char *selinux_sepgsql_context_path(void);
> > +extern const char *selinux_openssh_contexts_path(void);
> >  extern const char *selinux_systemd_contexts_path(void);
> >  extern const char *selinux_contexts_path(void);
> >  extern const char *selinux_securetty_types_path(void);
> > diff --git a/libselinux/src/file_path_suffixes.h b/libselinux/src/file_path_suffixes.h
> > index 3c92424..d1f9b48 100644
> > --- a/libselinux/src/file_path_suffixes.h
> > +++ b/libselinux/src/file_path_suffixes.h
> > @@ -23,6 +23,7 @@ S_(BINPOLICY, "/policy/policy")
> >      S_(VIRTUAL_DOMAIN, "/contexts/virtual_domain_context")
> >      S_(VIRTUAL_IMAGE, "/contexts/virtual_image_context")
> >      S_(LXC_CONTEXTS, "/contexts/lxc_contexts")
> > +    S_(OPENSSH_CONTEXTS, "/contexts/openssh_contexts")
> >      S_(SYSTEMD_CONTEXTS, "/contexts/systemd_contexts")
> >      S_(FILE_CONTEXT_SUBS, "/contexts/files/file_contexts.subs")
> >      S_(FILE_CONTEXT_SUBS_DIST, "/contexts/files/file_contexts.subs_dist")
> > diff --git a/libselinux/src/selinux_config.c b/libselinux/src/selinux_config.c
> > index 0a80141..bec5f3b 100644
> > --- a/libselinux/src/selinux_config.c
> > +++ b/libselinux/src/selinux_config.c
> > @@ -48,8 +48,9 @@
> >  #define FILE_CONTEXT_SUBS_DIST 25
> >  #define LXC_CONTEXTS      26
> >  #define BOOLEAN_SUBS      27
> > -#define SYSTEMD_CONTEXTS  28
> > -#define NEL               29
> > +#define OPENSSH_CONTEXTS  28
> > +#define SYSTEMD_CONTEXTS  29
> > +#define NEL               30
> >  
> >  /* Part of one-time lazy init */
> >  static pthread_once_t once = PTHREAD_ONCE_INIT;
> > @@ -491,6 +492,13 @@ const char *selinux_lxc_contexts_path(void)
> >  
> >  hidden_def(selinux_lxc_contexts_path)
> >  
> > +const char *selinux_openssh_contexts_path(void)
> > +{
> > +    return get_path(OPENSSH_CONTEXTS);
> > +}
> > +
> > +hidden_def(selinux_openssh_contexts_path)
> > +
> >  const char *selinux_systemd_contexts_path(void)
> >  {
> >  	return get_path(SYSTEMD_CONTEXTS);
> > diff --git a/libselinux/src/selinux_internal.h b/libselinux/src/selinux_internal.h
> > index 0abf1b4..844e408 100644
> > --- a/libselinux/src/selinux_internal.h
> > +++ b/libselinux/src/selinux_internal.h
> > @@ -83,6 +83,7 @@ hidden_proto(selinux_mkload_policy)
> >      hidden_proto(selinux_media_context_path)
> >      hidden_proto(selinux_x_context_path)
> >      hidden_proto(selinux_sepgsql_context_path)
> > +    hidden_proto(selinux_openssh_contexts_path)
> >      hidden_proto(selinux_systemd_contexts_path)
> >      hidden_proto(selinux_path)
> >      hidden_proto(selinux_check_passwd_access)
> > -- 
> > 2.4.1
> > 
> > _______________________________________________
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> > Selinux@xxxxxxxxxxxxx
> > To unsubscribe, send email to Selinux-leave@xxxxxxxxxxxxx.
> > To get help, send an email containing "help" to Selinux-request@xxxxxxxxxxxxx.
> 
> -- 
> 02DFF788
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> http://keys.gnupg.net/pks/lookup?op=vindex&search=0x314883A202DFF788
> Dominick Grift



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Dominick Grift

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