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Changes to the kernel policy module

PATCH New Dominick Grift 3 participants 4 messages Oct 17, 2012 – Oct 19, 2012

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Dominick Grift

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#0 lore raw

PATCH 1/1 Changes to the kernel policy module

Interface is needed by at least plymouth

Signed-off-by Dominick Grift <[email protected]>
policy/modules/kernel/kernel.if +19 -0
index 4bf45cb..7cbf5d6 100644
@@ -565,6 +565,25 @@
 
 ########################################
 ## <summary>
+##	Connect to kernel using a unix
+##	domain stream socket.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`kernel_stream_connect',`
+	gen_require(`
+		type kernel_t;
+	')
+
+	allow $1 kernel_t:unix_stream_socket connectto;
+')
+
+########################################
+## <summary>
 ##	Get information on all System V IPC objects.
 ## </summary>
 ## <param name="domain">
#1 lore raw

PATCH 1/1 Changes to the kernel policy module

For which socket is this? Why isn't the stream_connect_pattern needed here?

Quoted 35 lines · Dominick Grift

Interface is needed by at least plymouth

Signed-off-by Dominick Grift <[email protected]>
policy/modules/kernel/kernel.if +19 -0
index 4bf45cb..7cbf5d6 100644
@@ -565,6 +565,25 @@
 
 ########################################
 ## <summary>
+##     Connect to kernel using a unix
+##     domain stream socket.
+## </summary>
+## <param name="domain">
+##     <summary>
+##     Domain allowed access.
+##     </summary>
+## </param>
+#
+interface(`kernel_stream_connect',`
+       gen_require(`
+               type kernel_t;
+       ')
+
+       allow $1 kernel_t:unix_stream_socket connectto;
+')
+
+########################################
+## <summary>
 ##     Get information on all System V IPC objects.
 ## </summary>
 ## <param name="domain">
Quoted 5 lines

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author
#2 lore raw

PATCH 1/1 Changes to the kernel policy module

Quoted 2 lines · Sven Vermeulen

For which socket is this? Why isn't the stream_connect_pattern needed here?

This is probably initramfs i believe.

There is no audit of a write to any sock file related to this

Not sure exactly why but i suspect it has do do with the fact that this happens so early in the boot process.

Quoted 45 lines

On Oct 17, 2012 2:29 PM, "Dominick Grift" <[email protected]> wrote:

        Interface is needed by at least plymouth
        
        Signed-off-by: Dominick Grift <[email protected]>
        diff --git a/policy/modules/kernel/kernel.if
        b/policy/modules/kernel/kernel.if
        index 4bf45cb..7cbf5d6 100644
        --- a/policy/modules/kernel/kernel.if
        +++ b/policy/modules/kernel/kernel.if
        @@ -565,6 +565,25 @@
        
         ########################################
         ## <summary>
        +##     Connect to kernel using a unix
        +##     domain stream socket.
        +## </summary>
        +## <param name="domain">
        +##     <summary>
        +##     Domain allowed access.
        +##     </summary>
        +## </param>
        +#
        +interface(`kernel_stream_connect',`
        +       gen_require(`
        +               type kernel_t;
        +       ')
        +
        +       allow $1 kernel_t:unix_stream_socket connectto;
        +')
        +
        +########################################
        +## <summary>
         ##     Get information on all System V IPC objects.
         ## </summary>
         ## <param name="domain">
        _______________________________________________
        refpolicy mailing list
        refpolicy at oss.tresys.com
        http://oss.tresys.com/mailman/listinfo/refpolicy

_______________________________________________
refpolicy mailing list
refpolicy at oss.tresys.com
http://oss.tresys.com/mailman/listinfo/refpolicy

#3 lore raw

PATCH 1/1 Changes to the kernel policy module

In reply to Dominick Grift
Quoted 18 lines · Dominick Grift

Interface is needed by at least plymouth

Signed-off-by Dominick Grift <[email protected]>
policy/modules/kernel/kernel.if +6 -0
index 4bf45cb..7cbf5d6 100644
@@ -565,6 +565,25 @@
 
 ########################################
 ## <summary>
+##	Connect to kernel using a unix
+##	domain stream socket.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.

policy/modules/kernel/kernel.if line 583

Quoted 10 lines
policy/modules/kernel/kernel.if +10 -0
+##	</summary>
+## </param>
+#
+interface(`kernel_stream_connect',`
+	gen_require(`
+		type kernel_t;
+	')
+
+	allow $1 kernel_t:unix_stream_socket connectto;
+')

Merged.

Signature · 3 lines
Chris PeBenito
Tresys Technology, LLC
www.tresys.com | oss.tresys.com