From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001

From: Javier Martinez Canillas <javierm@redhat.com>

Date: Thu, 5 Mar 2020 16:21:47 +0100

Subject: [PATCH] efi/http: Export {fw,http}_path variables to make them global

The fw_path environment variable is used by http_configure() function to

determine the HTTP path that should be used as prefix when using relative

HTTP paths. And this is stored in the http_path environment variable.

Later, that variable is looked up by grub_efihttp_open() to generate the

complete path to be used in the HTTP request.

But these variables are not exported, which means that are not global and

so are only found in the initial context.

This can cause commands like configfile that create a new context to fail

because the fw_path and http_path variables will not be found.

Resolves: rhbz#1811561

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>

---

 grub-core/kern/main.c    | 1 +

 grub-core/net/efi/http.c | 1 +

 2 files changed, 2 insertions(+)

diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c

index dcf48726d..9bf6a8b23 100644

--- a/grub-core/kern/main.c

+++ b/grub-core/kern/main.c

@@ -142,6 +142,7 @@ grub_set_prefix_and_root (void)

       if (fw_path)

 	{

 	  grub_env_set ("fw_path", fw_path);

+	  grub_env_export ("fw_path");

 	  grub_dprintf ("fw_path", "fw_path:\"%s\"\n", fw_path);

 	  grub_free (fw_path);

 	}

diff --git a/grub-core/net/efi/http.c b/grub-core/net/efi/http.c

index de351b2cd..755b7a6d0 100644

--- a/grub-core/net/efi/http.c

+++ b/grub-core/net/efi/http.c

@@ -39,6 +39,7 @@ http_configure (struct grub_efi_net_device *dev, int prefer_ip6)

 	  http_path++;

 	  grub_env_unset ("http_path");

 	  grub_env_set ("http_path", http_path);

+	  grub_env_export ("http_path");

 	}

     }