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Centralize determination of boot firmware (UEFI vs. BIOS/CSM) into a

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function x86_bootmethod() and fix deviations from style(9).
This commit is contained in:
Nathan Whitehorn 2014-10-12 17:50:25 +00:00
parent f0cace5d94
commit be01d6e9f2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=273003
1 changed files with 35 additions and 32 deletions
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67
usr.sbin/bsdinstall/partedit/partedit_x86.c
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@ -32,8 +32,21 @@
#include "partedit.h"
static char platform[255] = "";
static const char *platform_sysctl = "machdep.bootmethod";
static const char *
x86_bootmethod(void)
{
static char fw[255] = "";
size_t len = sizeof(fw);
int error;
if (strlen(fw) == 0) {
error = sysctlbyname("machdep.bootmethod", fw, &len, NULL, -1);
if (error != 0)
return ("BIOS");
}
return (fw);
}
const char *
default_scheme(void) {
@ -41,14 +54,12 @@ default_scheme(void) {
}
int
is_scheme_bootable(const char *part_type) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
is_scheme_bootable(const char *part_type)
{
if (strcmp(part_type, "GPT") == 0)
return (1);
if (strcmp(platform, "BIOS") == 0) {
if (strcmp(x86_bootmethod(), "BIOS") == 0) {
if (strcmp(part_type, "BSD") == 0)
return (1);
if (strcmp(part_type, "MBR") == 0)
@ -59,31 +70,28 @@ is_scheme_bootable(const char *part_type) {
}
int
is_fs_bootable(const char *part_type, const char *fs) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
is_fs_bootable(const char *part_type, const char *fs)
{
if (strcmp(fs, "freebsd-ufs") == 0)
return (1);
if (strcmp(fs, "freebsd-zfs") == 0 && strcmp(platform, "BIOS") == 0)
if (strcmp(fs, "freebsd-zfs") == 0 &&
strcmp(x86_bootmethod(), "BIOS") == 0)
return (1);
return (0);
}
size_t
bootpart_size(const char *scheme) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
bootpart_size(const char *scheme)
{
/* No partcode except for GPT */
if (strcmp(scheme, "GPT") != 0)
return (0);
if (strcmp(platform, "BIOS") == 0)
if (strcmp(x86_bootmethod(), "BIOS") == 0)
return (512*1024);
else
return (800*1024);
@ -92,23 +100,20 @@ bootpart_size(const char *scheme) {
}
const char *
bootpart_type(const char *scheme) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
bootpart_type(const char *scheme)
{
if (strcmp(platform, "UEFI") == 0)
if (strcmp(x86_bootmethod(), "UEFI") == 0)
return ("efi");
return ("freebsd-boot");
}
const char *
bootcode_path(const char *part_type) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
if (strcmp(platform, "UEFI") == 0)
bootcode_path(const char *part_type)
{
if (strcmp(x86_bootmethod(), "UEFI") == 0)
return (NULL);
if (strcmp(part_type, "GPT") == 0)
@ -122,13 +127,11 @@ bootcode_path(const char *part_type) {
}
const char *
partcode_path(const char *part_type, const char *fs_type) {
size_t platlen = sizeof(platform);
if (strlen(platform) == 0)
sysctlbyname(platform_sysctl, platform, &platlen, NULL, -1);
partcode_path(const char *part_type, const char *fs_type)
{
if (strcmp(part_type, "GPT") == 0) {
if (strcmp(platform, "UEFI") == 0)
if (strcmp(x86_bootmethod(), "UEFI") == 0)
return ("/boot/boot1.efifat");
else if (strcmp(fs_type, "zfs") == 0)
return ("/boot/gptzfsboot");