On Sat, 2009-09-05 at 21:50 +0200, Stefan Schulze Frielinghaus wrote:
> is there an interface available to post a message to every logged in
> user, for example generated via /usr/bin/wall?
OK I'm pretty sure there is no interface for just writing to every
logged in user, the attached patch solves this.
I could use the "term_use_all_terms" interface but this is not really
what I wanted because /usr/bin/wall does not need to read all the
consoles/ptys/ttys. Write access is enough.
Chris, is this patch OK?
--- kernel/terminal.if 2009-09-06 15:04:36.000000000 +0200
+++ kernel/terminal.if 2009-09-06 15:09:19.000000000 +0200
@@ -178,6 +178,29 @@
########################################
## <summary>
+## Write the console, all
+## ttys and all ptys.
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain allowed access.
+## </summary>
+## </param>
+## <rolecap/>
+#
+interface(`term_write_all_terms',`
+ gen_require(`
+ attribute ttynode, ptynode;
+ type console_device_t, devpts_t, tty_device_t;
+ ')
+
+ dev_list_all_dev_nodes($1)
+ allow $1 devpts_t:dir list_dir_perms;
+ allow $1 { console_device_t tty_device_t ttynode ptynode }:chr_file write_chr_file_perms;
+')
+
+########################################
+## <summary>
## Write to the console.
## </summary>
## <param name="domain">
