grub2/0029-Try-mac-guid-etc-before-grub.cfg-on-tftp-config-file.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Mon, 8 Jul 2019 17:33:22 +0200
Subject: [PATCH] Try mac/guid/etc before grub.cfg on tftp config files.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/normal/main.c | 97 ++++++++++++++++++++++++++-----------------------
1 file changed, 51 insertions(+), 46 deletions(-)
diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 02577502116..880d0ebd454 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -345,61 +345,66 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)),
/* Guess the config filename. It is necessary to make CONFIG static,
so that it won't get broken by longjmp. */
char *config;
- const char *prefix, *fw_path;
-
- prefix = fw_path = grub_env_get ("fw_path");
- if (fw_path)
- {
- config = grub_xasprintf ("%s/grub.cfg", fw_path);
- if (config)
- {
- grub_file_t file;
-
- file = grub_file_open (config, GRUB_FILE_TYPE_CONFIG);
- if (file)
- {
- grub_file_close (file);
- grub_enter_normal_mode (config);
- }
- else
- {
- /* Ignore all errors. */
- grub_errno = 0;
- }
- grub_free (config);
- }
- }
+ const char *prefix;
+ const char *net_search_cfg;
+ int disable_net_search = 0;
+ prefix = grub_env_get ("fw_path");
if (! prefix)
prefix = grub_env_get ("prefix");
+
+ net_search_cfg = grub_env_get ("feature_net_search_cfg");
+ if (net_search_cfg && net_search_cfg[0] == 'n')
+ disable_net_search = 1;
+
if (prefix)
{
- grub_size_t config_len;
- int disable_net_search = 0;
- const char *net_search_cfg;
-
- config_len = grub_strlen (prefix) +
- sizeof ("/grub.cfg-XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX");
- config = grub_malloc (config_len);
-
- if (!config)
- goto quit;
-
- grub_snprintf (config, config_len, "%s/grub.cfg", prefix);
-
- net_search_cfg = grub_env_get ("feature_net_search_cfg");
- if (net_search_cfg && net_search_cfg[0] == 'n')
- disable_net_search = 1;
-
if (grub_strncmp (prefix + 1, "tftp", sizeof ("tftp") - 1) == 0 &&
!disable_net_search)
- grub_net_search_config_file (config);
+ {
+ grub_size_t config_len;
+ config_len = grub_strlen (prefix) +
+ sizeof ("/grub.cfg-XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX");
+ config = grub_malloc (config_len);
- grub_enter_normal_mode (config);
- grub_free (config);
- }
+ if (! config)
+ goto quit;
+
+ grub_snprintf (config, config_len, "%s/grub.cfg", prefix);
+
+ grub_net_search_configfile (config);
+
+ grub_enter_normal_mode (config);
+ grub_free (config);
+ config = NULL;
+ }
+
+ if (!config)
+ {
+ config = grub_xasprintf ("%s/grub.cfg", prefix);
+ if (config)
+ {
+ grub_file_t file;
+
+ file = grub_file_open (config, GRUB_FILE_TYPE_CONFIG);
+ if (file)
+ {
+ grub_file_close (file);
+ grub_enter_normal_mode (config);
+ }
+ else
+ {
+ /* Ignore all errors. */
+ grub_errno = 0;
+ }
+ grub_free (config);
+ }
+ }
+ }
else
- grub_enter_normal_mode (0);
+ {
+ grub_enter_normal_mode (0);
+ }
}
else
grub_enter_normal_mode (argv[0]);