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stand: Consolidate checking for boot flags driven by environment vars

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e.g. boot_mute, boot_single, boot_verbose, and friends; we checked for these
in multiple places, consolidate into common/ and allow a setting of "NO" for
any of these to turn them off. This allows systems with multiple
loader.conf(5) or loader.conf(5) overlay systems to easily turn off
variables in later processed files by setting it to NO.

Reported by:	Nick Wolff @ iXsystems
Reviewed by:	imp
This commit is contained in:
Kyle Evans 2018-06-09 15:10:39 +00:00
parent 4a0f8b339e
commit 593e2c6ece
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=334882
6 changed files with 24 additions and 27 deletions
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16
stand/common/boot.c
View File

@ -32,6 +32,8 @@ __FBSDID("$FreeBSD$");
*/
#include <stand.h>
#include <sys/reboot.h>
#include <sys/boot.h>
#include <string.h>
#include "bootstrap.h"
@ -158,6 +160,20 @@ autoboot_maybe()
autoboot(-1, NULL); /* try to boot automatically */
}
int
bootenv_flags()
{
int i, howto;
char *val;
for (howto = 0, i = 0; howto_names[i].ev != NULL; i++) {
val = getenv(howto_names[i].ev);
if (val != NULL && strcasecmp(val, "no") != 0)
howto |= howto_names[i].mask;
}
return (howto);
}
static int
autoboot(int timeout, char *prompt)
{

1
stand/common/bootstrap.h
View File

@ -63,6 +63,7 @@ int parse(int *argc, char ***argv, const char *str);
/* boot.c */
void autoboot_maybe(void);
int getrootmount(char *rootdev);
int bootenv_flags(void);
/* misc.c */
char *unargv(int argc, char *argv[]);

8
stand/common/metadata.c
View File

@ -31,9 +31,7 @@ __FBSDID("$FreeBSD$");
#include <stand.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/linker.h>
#include <sys/boot.h>
#if defined(LOADER_FDT_SUPPORT)
#include <fdt_platform.h>
#endif
@ -100,7 +98,6 @@ md_getboothowto(char *kargs)
char *cp;
int howto;
int active;
int i;
/* Parse kargs */
howto = 0;
@ -153,10 +150,7 @@ md_getboothowto(char *kargs)
}
}
/* get equivalents from the environment */
for (i = 0; howto_names[i].ev != NULL; i++)
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
howto |= bootenv_flags();
#if defined(__sparc64__)
if (md_bootserial() != -1)
howto |= RB_SERIAL;

13
stand/efi/loader/bootinfo.c
View File

@ -32,9 +32,8 @@ __FBSDID("$FreeBSD$");
#include <stand.h>
#include <string.h>
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/linker.h>
#include <sys/boot.h>
#include <sys/reboot.h>
#include <machine/cpufunc.h>
#include <machine/elf.h>
#include <machine/metadata.h>
@ -72,15 +71,9 @@ bi_getboothowto(char *kargs)
const char *sw;
char *opts;
char *console;
int howto, i;
int howto;
howto = 0;
/* Get the boot options from the environment first. */
for (i = 0; howto_names[i].ev != NULL; i++) {
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
}
howto = bootenv_flags();
console = getenv("console");
if (console != NULL) {

6
stand/i386/libi386/bootinfo.c
View File

@ -43,7 +43,6 @@ bi_getboothowto(char *kargs)
char *curpos, *next, *string;
int howto;
int active;
int i;
int vidconsole;
/* Parse kargs */
@ -96,10 +95,7 @@ bi_getboothowto(char *kargs)
cp++;
}
}
/* get equivalents from the environment */
for (i = 0; howto_names[i].ev != NULL; i++)
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
howto |= bootenv_flags();
/* Enable selected consoles */
string = next = strdup(getenv("console"));

7
stand/userboot/userboot/bootinfo.c
View File

@ -43,7 +43,6 @@ bi_getboothowto(char *kargs)
char *curpos, *next, *string;
int howto;
int active;
int i;
int vidconsole;
/* Parse kargs */
@ -96,10 +95,8 @@ bi_getboothowto(char *kargs)
cp++;
}
}
/* get equivalents from the environment */
for (i = 0; howto_names[i].ev != NULL; i++)
if (getenv(howto_names[i].ev) != NULL)
howto |= howto_names[i].mask;
howto |= bootenv_flags();
/* Enable selected consoles */
string = next = strdup(getenv("console"));