next try at refpolicy-gentoo patches

next try at refpolicy-gentoo patches

[Serge E. Hallyn]

The following set of patches lets me log in locally on a
gentoo system in enforcing mode.

First, label the serial ports as tty devices:

Index: refpolicy/policy/modules/kernel/terminal.fc
===================================================================
--- refpolicy.orig/policy/modules/kernel/terminal.fc
+++ refpolicy/policy/modules/kernel/terminal.fc
@@ -24,3 +24,6 @@
 /dev/vcs[^/]*		-c	gen_context(system_u:object_r:tty_device_t,s0)
 
 /dev/usb/tty.*		-c	gen_context(system_u:object_r:usbtty_device_t,s0)
+ifdef(`distro_gentoo', `
+/dev/tts/[0-9]*		-c	gen_context(system_u:object_r:tty_device_t,s0)
+')

Second, unix_chkpwd is under /usr/sbin/ under gentoo:

Index: refpolicy/policy/modules/system/authlogin.fc
===================================================================
--- refpolicy.orig/policy/modules/system/authlogin.fc
+++ refpolicy/policy/modules/system/authlogin.fc
@@ -12,6 +12,11 @@
 /sbin/pam_console_apply	 --	gen_context(system_u:object_r:pam_console_exec_t,s0)
 /sbin/pam_timestamp_check --	gen_context(system_u:object_r:pam_exec_t,s0)
 /sbin/unix_chkpwd	--	gen_context(system_u:object_r:chkpwd_exec_t,s0)
+
+ifdef(`distro_gentoo', `
+/usr/sbin/unix_chkpwd	--	gen_context(system_u:object_r:chkpwd_exec_t,s0)
+')
+
 /sbin/unix_verify	--	gen_context(system_u:object_r:chkpwd_exec_t,s0)
 ifdef(`distro_suse', `
 /sbin/unix2_chkpwd	--	gen_context(system_u:object_r:chkpwd_exec_t,s0)

Third, I need to send sighld from user_t to local_login_t on login,
else I get an endless series of error messages on console
(login: waitpid (6328, NULL, 0) failed: No child processes)
Is this really gentoo-specific?

Index: refpolicy/policy/modules/system/userdomain.if
===================================================================
--- refpolicy.orig/policy/modules/system/userdomain.if
+++ refpolicy/policy/modules/system/userdomain.if
@@ -33,6 +33,10 @@ template(`base_user_template',`
 	role $1_r types $1_t;
 	allow system_r $1_r;
 
+	ifdef(`distro_gentoo',`
+		allow $1_t local_login_t:process { sigchld };
+	')
+
 	# user pseudoterminal
 	type $1_devpts_t;
 	term_user_pty($1_t,$1_devpts_t)

Lastly, like with redhat, /dev is tmpfs, so user terminals need to be
able to associate with tmpfs.

Index: refpolicy/policy/modules/kernel/terminal.if
===================================================================
--- refpolicy.orig/policy/modules/kernel/terminal.if
+++ refpolicy/policy/modules/kernel/terminal.if
@@ -88,6 +88,9 @@ interface(`term_tty',`
 		type_change $1 ttynode:chr_file $2;
 	')
 
+	ifdef(`distro_gentoo',`
+		fs_associate_tmpfs($2)
+	')
 	ifdef(`distro_redhat',`
 		fs_associate_tmpfs($2)
 	')

thanks,
-serge

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Re: next try at refpolicy-gentoo patches

[Serge E. Hallyn]

Oops, I forgot one piece which was thrown in with a site-private
patch.

Under gentoo, syslog-ng is under /usr/sbin.

Index: refpolicy/policy/modules/system/logging.fc
===================================================================
--- refpolicy.orig/policy/modules/system/logging.fc
+++ refpolicy/policy/modules/system/logging.fc
@@ -10,6 +10,9 @@
 /sbin/minilogd		--	gen_context(system_u:object_r:syslogd_exec_t,s0)
 /sbin/syslogd		--	gen_context(system_u:object_r:syslogd_exec_t,s0)
 /sbin/syslog-ng		--	gen_context(system_u:object_r:syslogd_exec_t,s0)
+ifdef(`distro_gentoo', `
+/usr/sbin/syslog-ng		--	gen_context(system_u:object_r:syslogd_exec_t,s0)
+')
 
 /usr/sbin/klogd		--	gen_context(system_u:object_r:klogd_exec_t,s0)
 /usr/sbin/metalog	--	gen_context(system_u:object_r:syslogd_exec_t,s0)

thanks,
-serge

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Re: next try at refpolicy-gentoo patches

[Christopher J. PeBenito]

On Thu, 2006-01-19 at 15:11 -0600, Serge E. Hallyn wrote:
> Oops, I forgot one piece which was thrown in with a site-private
> patch.
> 
> Under gentoo, syslog-ng is under /usr/sbin.

Merged.

-- 
Chris PeBenito
Tresys Technology, LLC
(410) 290-1411 x150


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Re: next try at refpolicy-gentoo patches

[Christopher J. PeBenito]

On Thu, 2006-01-19 at 14:33 -0600, Serge E. Hallyn wrote:
> The following set of patches lets me log in locally on a
> gentoo system in enforcing mode.

Merged, with one note,

> Third, I need to send sighld from user_t to local_login_t on login,
> else I get an endless series of error messages on console
> (login: waitpid (6328, NULL, 0) failed: No child processes)
> Is this really gentoo-specific?

With some digging, and discussion in the IRC channel, this one wasn't
Gentoo specific, and due to some missing IPC rules in the domain
transition to all user domains that local_login_t was using.  I fixed
that, so this hunk isn't needed:

> Index: refpolicy/policy/modules/system/userdomain.if
> ===================================================================
> --- refpolicy.orig/policy/modules/system/userdomain.if
> +++ refpolicy/policy/modules/system/userdomain.if
> @@ -33,6 +33,10 @@ template(`base_user_template',`
>  	role $1_r types $1_t;
>  	allow system_r $1_r;
>  
> +	ifdef(`distro_gentoo',`
> +		allow $1_t local_login_t:process { sigchld };
> +	')
> +
>  	# user pseudoterminal
>  	type $1_devpts_t;
>  	term_user_pty($1_t,$1_devpts_t)

-- 
Chris PeBenito
Tresys Technology, LLC
(410) 290-1411 x150


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