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grub2/0042-Try-prefix-if-fw_path-doesn-t-work.patch
Javier Martinez Canillas 1d49572ef1
Update to latest content from upstream sources 
The content of this branch was not automatically imported from upstream
sources. Pull the latest from upstream to have the missing changes here.

Source: https://src.fedoraproject.org/rpms/grub2.git#f2763e56df79eccae17d2e8fa13d2f51a0fe7073

Resolves: rhbz#1947696

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2021-04-12 01:36:21 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 9 Jul 2019 10:35:16 +0200
Subject: [PATCH] Try $prefix if $fw_path doesn't work.
Related: rhbz#1148652
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/kern/ieee1275/init.c | 28 +++++----
grub-core/net/net.c | 2 +-
grub-core/normal/main.c | 134 ++++++++++++++++++++---------------------
3 files changed, 82 insertions(+), 82 deletions(-)
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index e71d1584164..0cd2a627231 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -127,23 +127,25 @@ grub_machine_get_bootlocation (char **device, char **path)
grub_free (canon);
}
else
- *device = grub_ieee1275_encode_devname (bootpath);
- grub_free (type);
-
- filename = grub_ieee1275_get_filename (bootpath);
- if (filename)
{
- char *lastslash = grub_strrchr (filename, '\\');
-
- /* Truncate at last directory. */
- if (lastslash)
+ filename = grub_ieee1275_get_filename (bootpath);
+ if (filename)
{
- *lastslash = '\0';
- grub_translate_ieee1275_path (filename);
+ char *lastslash = grub_strrchr (filename, '\\');
- *path = filename;
- }
+ /* Truncate at last directory. */
+ if (lastslash)
+ {
+ *lastslash = '\0';
+ grub_translate_ieee1275_path (filename);
+
+ *path = filename;
+ }
+ }
+ *device = grub_ieee1275_encode_devname (bootpath);
}
+
+ grub_free (type);
grub_free (bootpath);
}
diff --git a/grub-core/net/net.c b/grub-core/net/net.c
index 4d3eb5c1a52..0ef148f4adc 100644
--- a/grub-core/net/net.c
+++ b/grub-core/net/net.c
@@ -1869,7 +1869,7 @@ grub_net_search_config_file (char *config)
/* Remove the remaining minus sign at the end. */
config[config_len] = '\0';
- return GRUB_ERR_NONE;
+ return GRUB_ERR_FILE_NOT_FOUND;
}
static struct grub_preboot *fini_hnd;
diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 1e509fceb91..d5968797f4f 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -337,81 +337,79 @@ grub_enter_normal_mode (const char *config)
grub_boot_time ("Exiting normal mode");
}
+static grub_err_t
+grub_try_normal (const char *variable)
+{
+ char *config;
+ const char *prefix;
+ grub_err_t err = GRUB_ERR_FILE_NOT_FOUND;
+ const char *net_search_cfg;
+ int disable_net_search = 0;
+
+ prefix = grub_env_get (variable);
+ if (!prefix)
+ return GRUB_ERR_FILE_NOT_FOUND;
+
+ 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_size_t config_len;
+ config_len = grub_strlen (prefix) +
+ sizeof ("/grub.cfg-XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX");
+ config = grub_malloc (config_len);
+
+ if (! config)
+ return GRUB_ERR_FILE_NOT_FOUND;
+
+ grub_snprintf (config, config_len, "%s/grub.cfg", prefix);
+ err = grub_net_search_config_file (config);
+ }
+
+ if (err != GRUB_ERR_NONE)
+ {
+ 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);
+ err = GRUB_ERR_NONE;
+ }
+ }
+ }
+
+ if (err == GRUB_ERR_NONE)
+ grub_enter_normal_mode (config);
+
+ grub_errno = 0;
+ grub_free (config);
+ return err;
+}
+
/* Enter normal mode from rescue mode. */
static grub_err_t
grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
- if (argc == 0)
- {
- /* 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;
- 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)
- {
- if (grub_strncmp (prefix + 1, "tftp", sizeof ("tftp") - 1) == 0 &&
- !disable_net_search)
- {
- grub_size_t config_len;
- 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);
-
- 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);
- }
- }
- else
+ if (argc)
grub_enter_normal_mode (argv[0]);
+ else
+ {
+ /* Guess the config filename. */
+ grub_err_t err;
+ err = grub_try_normal ("fw_path");
+ if (err == GRUB_ERR_FILE_NOT_FOUND)
+ err = grub_try_normal ("prefix");
+ if (err == GRUB_ERR_FILE_NOT_FOUND)
+ grub_enter_normal_mode (0);
+ }
-quit:
return 0;
}
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