Show bits of entropy available to /dev/(u)random

1 files changed, 13 insertions, 0 deletions

diff --git a/modules/computer/os.c b/modules/computer/os.c
index 41f8cb3a..3caf6c26 100644
--- a/modules/computer/os.c
+++ b/modules/computer/os.c
@@ -141,6 +141,17 @@ detect_desktop_environment(OperatingSystem * os)
     }
 }
 
+gchar *
+computer_get_entropy_avail(void)
+{
+    gint bits = h_sysfs_read_int("/proc/sys/kernel/random", "entropy_avail");
+    if (bits < 200)
+        return g_strdup_printf("%d bits (low)", bits);
+    if (bits < 3000)
+        return g_strdup_printf("%d bits (medium)", bits);
+    return g_strdup_printf("%d bits (healthy)", bits);
+}
+
 OperatingSystem *
 computer_get_os(void)
 {
@@ -241,5 +252,7 @@ computer_get_os(void)
     scan_languages(os);
     detect_desktop_environment(os);
 
+    os->entropy_avail = computer_get_entropy_avail();
+
     return os;
 }