From d963aa3e914615631a8169f6d88d82167fe06a63 Mon Sep 17 00:00:00 2001
From: Leandro Pereira <leandro@hardinfo.org>
Date: Sat, 13 Oct 2018 11:21:35 -0700
Subject: Display status of ASLR in Computer->Operating System

---
 modules/computer.c    |  6 +++++-
 modules/computer/os.c | 14 ++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

(limited to 'modules')

diff --git a/modules/computer.c b/modules/computer.c
index 3984efc9..45c4502e 100644
--- a/modules/computer.c
+++ b/modules/computer.c
@@ -511,10 +511,14 @@ gchar *callback_os(void)
         info_field(_("Home Directory"), computer->os->homedir),
         info_field_last());
 
+    info_add_group(info, _("Security"),
+        info_field_update(_("Available entropy in /dev/random"), 1000),
+        info_field(_("ASLR"), idle_free(computer_get_aslr())),
+        info_field_last());
+
     info_add_group(info, _("Misc"),
         info_field_update(_("Uptime"), 1000),
         info_field_update(_("Load Average"), 10000),
-        info_field_update(_("Available entropy in /dev/random"), 1000),
         info_field_last());
 
     return info_flatten(info);
diff --git a/modules/computer/os.c b/modules/computer/os.c
index aec53df2..fc370ee8 100644
--- a/modules/computer/os.c
+++ b/modules/computer/os.c
@@ -234,6 +234,20 @@ detect_desktop_environment(void)
     return g_strdup(_("Unknown"));
 }
 
+gchar *
+computer_get_aslr(void)
+{
+    switch (h_sysfs_read_int("/proc/sys/kernel", "randomize_va_space")) {
+    case 0:
+        return g_strdup(_("Disabled"));
+    case 1:
+        return g_strdup(_("Partially enabled (mmap base+stack+VDSO base)"));
+    case 2:
+        return g_strdup(_("Fully enabled (mmap base+stack+VDSO base+heap)"));
+    default:
+        return g_strdup(_("Unknown"));
+    }
+}
 gchar *
 computer_get_entropy_avail(void)
 {
-- 
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