Re: [PATCH] menu: add support for client defined statusline function

2020-05-07 Thread Tom Rini
On Wed, Mar 18, 2020 at 11:38:42AM -0700, Thirupathaiah Annapureddy wrote:

> Currently displaying status line is done in a weak function
> menu_display_statusline().
> 
> bootmenu.c overrides the weak default function.
> It calls menu_default_choice() and interprets the data as
> struct bootmenu_entry.
> 
> pxe boot also uses common menu code for pxe menus.
> If there is a system that enables both bootmenu and pxe,
> menu_display_statusline() defined in bootmenu.c will be called
> and it will interpret struct pxe_label as struct bootmenu_entry.
> This leads to data aborts and pxe menu corruptions.
> 
> This patch adds support for client defined statusline function
> to resolve the above bug.
> 
> Signed-off-by: Thirupathaiah Annapureddy 

Applied to u-boot/master, thanks!

-- 
Tom


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[PATCH] menu: add support for client defined statusline function

2020-03-18 Thread Thirupathaiah Annapureddy
Currently displaying status line is done in a weak function
menu_display_statusline().

bootmenu.c overrides the weak default function.
It calls menu_default_choice() and interprets the data as
struct bootmenu_entry.

pxe boot also uses common menu code for pxe menus.
If there is a system that enables both bootmenu and pxe,
menu_display_statusline() defined in bootmenu.c will be called
and it will interpret struct pxe_label as struct bootmenu_entry.
This leads to data aborts and pxe menu corruptions.

This patch adds support for client defined statusline function
to resolve the above bug.

Signed-off-by: Thirupathaiah Annapureddy 
---
 cmd/bootmenu.c  | 61 +
 cmd/pxe_utils.c |  2 +-
 common/menu.c   | 13 +++
 include/menu.h  |  2 +-
 4 files changed, 41 insertions(+), 37 deletions(-)

diff --git a/cmd/bootmenu.c b/cmd/bootmenu.c
index 3dc2c854ac..f1562883f5 100644
--- a/cmd/bootmenu.c
+++ b/cmd/bootmenu.c
@@ -365,6 +365,34 @@ cleanup:
return NULL;
 }
 
+static void menu_display_statusline(struct menu *m)
+{
+   struct bootmenu_entry *entry;
+   struct bootmenu_data *menu;
+
+   if (menu_default_choice(m, (void *)) < 0)
+   return;
+
+   menu = entry->menu;
+
+   printf(ANSI_CURSOR_POSITION, 1, 1);
+   puts(ANSI_CLEAR_LINE);
+   printf(ANSI_CURSOR_POSITION, 2, 1);
+   puts("  *** U-Boot Boot Menu ***");
+   puts(ANSI_CLEAR_LINE_TO_END);
+   printf(ANSI_CURSOR_POSITION, 3, 1);
+   puts(ANSI_CLEAR_LINE);
+
+   /* First 3 lines are bootmenu header + 2 empty lines between entries */
+   printf(ANSI_CURSOR_POSITION, menu->count + 5, 1);
+   puts(ANSI_CLEAR_LINE);
+   printf(ANSI_CURSOR_POSITION, menu->count + 6, 1);
+   puts("  Press UP/DOWN to move, ENTER to select");
+   puts(ANSI_CLEAR_LINE_TO_END);
+   printf(ANSI_CURSOR_POSITION, menu->count + 7, 1);
+   puts(ANSI_CLEAR_LINE);
+}
+
 static void bootmenu_show(int delay)
 {
int init = 0;
@@ -396,8 +424,9 @@ static void bootmenu_show(int delay)
if (!bootmenu)
return;
 
-   menu = menu_create(NULL, bootmenu->delay, 1, bootmenu_print_entry,
-  bootmenu_choice_entry, bootmenu);
+   menu = menu_create(NULL, bootmenu->delay, 1, menu_display_statusline,
+  bootmenu_print_entry, bootmenu_choice_entry,
+  bootmenu);
if (!menu) {
bootmenu_destroy(bootmenu);
return;
@@ -445,34 +474,6 @@ cleanup:
 #endif
 }
 
-void menu_display_statusline(struct menu *m)
-{
-   struct bootmenu_entry *entry;
-   struct bootmenu_data *menu;
-
-   if (menu_default_choice(m, (void *)) < 0)
-   return;
-
-   menu = entry->menu;
-
-   printf(ANSI_CURSOR_POSITION, 1, 1);
-   puts(ANSI_CLEAR_LINE);
-   printf(ANSI_CURSOR_POSITION, 2, 1);
-   puts("  *** U-Boot Boot Menu ***");
-   puts(ANSI_CLEAR_LINE_TO_END);
-   printf(ANSI_CURSOR_POSITION, 3, 1);
-   puts(ANSI_CLEAR_LINE);
-
-   /* First 3 lines are bootmenu header + 2 empty lines between entries */
-   printf(ANSI_CURSOR_POSITION, menu->count + 5, 1);
-   puts(ANSI_CLEAR_LINE);
-   printf(ANSI_CURSOR_POSITION, menu->count + 6, 1);
-   puts("  Press UP/DOWN to move, ENTER to select");
-   puts(ANSI_CLEAR_LINE_TO_END);
-   printf(ANSI_CURSOR_POSITION, menu->count + 7, 1);
-   puts(ANSI_CLEAR_LINE);
-}
-
 #ifdef CONFIG_AUTOBOOT_MENU_SHOW
 int menu_show(int bootdelay)
 {
diff --git a/cmd/pxe_utils.c b/cmd/pxe_utils.c
index 53af04d7dc..c244bfb10d 100644
--- a/cmd/pxe_utils.c
+++ b/cmd/pxe_utils.c
@@ -1237,7 +1237,7 @@ static struct menu *pxe_menu_to_menu(struct pxe_menu *cfg)
 * Create a menu and add items for all the labels.
 */
m = menu_create(cfg->title, DIV_ROUND_UP(cfg->timeout, 10),
-   cfg->prompt, label_print, NULL, NULL);
+   cfg->prompt, NULL, label_print, NULL, NULL);
 
if (!m)
return NULL;
diff --git a/common/menu.c b/common/menu.c
index 7b66d199a9..5fb2ffbd06 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -36,6 +36,7 @@ struct menu {
int timeout;
char *title;
int prompt;
+   void (*display_statusline)(struct menu *);
void (*item_data_print)(void *);
char *(*item_choice)(void *);
void *item_choice_data;
@@ -106,10 +107,6 @@ static inline void *menu_item_destroy(struct menu *m,
return NULL;
 }
 
-__weak void menu_display_statusline(struct menu *m)
-{
-}
-
 /*
  * Display a menu so the user can make a choice of an item. First display its
  * title, if any, and then each item in the menu.
@@ -120,7 +117,8 @@ static inline void menu_display(struct menu *m)
puts(m->title);
putc('\n');
}
-   menu_display_statusline(m);
+   if (m->display_statusline)
+