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efibootmgr/efibootmgr-fix-efivar-0.24.patch

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From cddc48752cbb1c0d74b581f8aa6b2d9e51fd69d9 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Thu, 25 Feb 2016 10:43:40 -0500
Subject: [PATCH 1/3] efibootmgr: update for efivar 0.24
As of 0.24 efi_loadopt_pathlen() and efi_loadopt_path() require a limit
argument to avoid overruns of the input data.
This patch adds reasonable limits to those calls.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
src/efibootmgr/efibootmgr.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/src/efibootmgr/efibootmgr.c b/src/efibootmgr/efibootmgr.c
index a5b5bf9..09489ab 100644
--- a/src/efibootmgr/efibootmgr.c
+++ b/src/efibootmgr/efibootmgr.c
@@ -219,13 +219,12 @@ warn_duplicate_name(list_t *boot_list)
list_for_each(pos, boot_list) {
boot = list_entry(pos, var_entry_t, list);
- load_option = (efi_load_option *)
- boot->data;
- desc = efi_loadopt_desc(load_option);
+ load_option = (efi_load_option *)boot->data;
+ desc = efi_loadopt_desc(load_option, boot->data_size);
if (!strcmp((char *)opts.label, (char *)desc)) {
- fprintf(stderr, "** Warning ** : %.8s has same label %s\n",
- boot->name,
- opts.label);
+ fprintf(stderr,
+ "** Warning ** : %.8s has same label %s\n",
+ boot->name, opts.label);
}
}
}
@@ -821,8 +820,7 @@ show_boot_vars()
list_for_each(pos, &boot_entry_list) {
boot = list_entry(pos, var_entry_t, list);
load_option = (efi_load_option *)boot->data;
- description = efi_loadopt_desc(load_option);
- dp = efi_loadopt_path(load_option);
+ description = efi_loadopt_desc(load_option, boot->data_size);
if (boot->name)
printf("%.8s", boot->name);
else
@@ -835,9 +833,12 @@ show_boot_vars()
if (opts.verbose) {
char *text_path = NULL;
size_t text_path_len = 0;
- uint16_t pathlen = efi_loadopt_pathlen(load_option);
+ uint16_t pathlen;
ssize_t rc;
+ pathlen = efi_loadopt_pathlen(load_option,
+ boot->data_size);
+ dp = efi_loadopt_path(load_option, pathlen);
rc = efidp_format_device_path(text_path, text_path_len,
dp, pathlen);
if (rc < 0)
--
2.9.0
From 62944db11c87a936368525e4b480d1a0af61fd5e Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Thu, 25 Feb 2016 14:16:38 -0500
Subject: [PATCH 2/3] efibootmgr: fix some types the compiler doesn't like.
Basically uint8_t * vs char *.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
src/lib/efi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/lib/efi.c b/src/lib/efi.c
index c2b8152..91ed11e 100644
--- a/src/lib/efi.c
+++ b/src/lib/efi.c
@@ -424,7 +424,7 @@ get_extra_args(uint8_t *data, ssize_t data_size)
sz = efi_loadopt_args_as_ucs2(
(uint16_t *)(data+off),
data_size?data_size+off:0,
- opts.argv[i]);
+ (uint8_t *)opts.argv[i]);
if (sz < 0)
return -1;
off += sz;
@@ -436,7 +436,7 @@ get_extra_args(uint8_t *data, ssize_t data_size)
} else {
sz = efi_loadopt_args_as_utf8(data+off,
data_size?data_size+off:0,
- opts.argv[i]);
+ (uint8_t *)opts.argv[i]);
if (sz < 0)
return -1;
off += sz;
--
2.9.0
From 3d68945362177a762e6331a02b8896e38b984a12 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Thu, 3 Mar 2016 09:50:03 -0500
Subject: [PATCH 3/3] Explicitly pass a mode to efi_set_variable() in all
cases.
We'll have to do this for efivar-0.24 .
Signed-off-by: Peter Jones <pjones@redhat.com>
---
src/efibootmgr/efibootmgr.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/src/efibootmgr/efibootmgr.c b/src/efibootmgr/efibootmgr.c
index 09489ab..d1d4fe2 100644
--- a/src/efibootmgr/efibootmgr.c
+++ b/src/efibootmgr/efibootmgr.c
@@ -304,7 +304,7 @@ make_boot_var(list_t *boot_list)
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS;
rc = efi_set_variable(boot->guid, boot->name, boot->data,
- boot->data_size, boot->attributes);
+ boot->data_size, boot->attributes, 0644);
if (rc < 0)
goto err;
list_add_tail(&boot->list, boot_list);
@@ -362,7 +362,8 @@ set_boot_u16(const char *name, uint16_t num)
return efi_set_variable(EFI_GLOBAL_GUID, name, (uint8_t *)&num,
sizeof (num), EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS |
- EFI_VARIABLE_RUNTIME_ACCESS);
+ EFI_VARIABLE_RUNTIME_ACCESS,
+ 0644);
}
static int
@@ -398,7 +399,7 @@ add_to_boot_order(uint16_t num)
boot_order->data_size = new_data_size;
rc = efi_set_variable(EFI_GLOBAL_GUID, "BootOrder", boot_order->data,
- boot_order->data_size, boot_order->attributes);
+ boot_order->data_size, boot_order->attributes, 0644);
free(boot_order->data);
free(boot_order);
return rc;
@@ -452,7 +453,8 @@ remove_dupes_from_boot_order(void)
boot_order->data_size = new_data_size;
efi_del_variable(EFI_GLOBAL_GUID, "BootOrder");
rc = efi_set_variable(EFI_GLOBAL_GUID, "BootOrder", boot_order->data,
- boot_order->data_size, boot_order->attributes);
+ boot_order->data_size, boot_order->attributes,
+ 0644);
free(boot_order->data);
free(boot_order);
return rc;
@@ -501,7 +503,8 @@ remove_from_boot_order(uint16_t num)
boot_order->data_size = sizeof(data[0]) * new_i;
rc = efi_set_variable(EFI_GLOBAL_GUID, "BootOrder", boot_order->data,
- boot_order->data_size, boot_order->attributes);
+ boot_order->data_size, boot_order->attributes,
+ 0644);
all_done:
free(boot_order->data);
free(boot_order);
@@ -801,7 +804,8 @@ set_boot_order(int keep_old_entries)
rc = efi_set_variable(EFI_GLOBAL_GUID, "BootOrder", data, data_size,
EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS |
- EFI_VARIABLE_RUNTIME_ACCESS);
+ EFI_VARIABLE_RUNTIME_ACCESS,
+ 0644);
free(data);
return rc;
}
@@ -936,7 +940,8 @@ set_active_state()
boot->name,
boot->data,
boot->data_size,
- boot->attributes);
+ boot->attributes,
+ 0644);
}
}
else if (opts.active == 0) {
@@ -950,7 +955,8 @@ set_active_state()
boot->name,
boot->data,
boot->data_size,
- boot->attributes);
+ boot->attributes,
+ 0644);
}
}
}
--
2.9.0
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