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authorClemens Ladisch <clemens@ladisch.de>2013-08-04 13:09:50 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-05 15:06:46 +0800
commit3855ae1c486a2d1b65a96fac8d504ef7197e62cd (patch)
tree47e959acc495e5a24e04f5f69c2553915737ed93 /drivers/tty/vt
parentb2755b761a47ae42094bbab64d40490694ec08c3 (diff)
vt: make the default color configurable
The virtual console has (undocumented) module parameters to set the colors for italic and underlined text, but the default text color was hardcoded for some reason. This made it impossible to change the color for startup messages, or to set the default for new virtual consoles. Add a module parameter for that, and document the entire bunch. Any hacker who thinks that a command prompt on a "black screen with white font" is not supicious enough can now use the kernel parameter vt.color=10 to get a nice, evil green. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt')
-rw-r--r--drivers/tty/vt/vt.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 02af6ccefe6a..9a8e8c5a0c73 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2809,8 +2809,10 @@ static void con_shutdown(struct tty_struct *tty)
console_unlock();
}
+static int default_color = 7; /* white */
static int default_italic_color = 2; // green (ASCII)
static int default_underline_color = 3; // cyan (ASCII)
+module_param_named(color, default_color, int, S_IRUGO | S_IWUSR);
module_param_named(italic, default_italic_color, int, S_IRUGO | S_IWUSR);
module_param_named(underline, default_underline_color, int, S_IRUGO | S_IWUSR);
@@ -2832,7 +2834,7 @@ static void vc_init(struct vc_data *vc, unsigned int rows,
vc->vc_palette[k++] = default_grn[j] ;
vc->vc_palette[k++] = default_blu[j] ;
}
- vc->vc_def_color = 0x07; /* white */
+ vc->vc_def_color = default_color;
vc->vc_ulcolor = default_underline_color;
vc->vc_itcolor = default_italic_color;
vc->vc_halfcolor = 0x08; /* grey */