svn commit: r313042 - in head/sys/boot: efi/include efi/libefi efi/loader forth
Michal Meloun
melounmichal at gmail.com
Fri Feb 3 04:36:08 UTC 2017
On 01.02.2017 9:46, Toomas Soome wrote:
> Author: tsoome
> Date: Wed Feb 1 08:46:59 2017
> New Revision: 313042
> URL: https://svnweb.freebsd.org/changeset/base/313042
>
> Log:
> loader.efi environment related cleanups
>
> Since we have dedicated libefi/env.c file for variable support, the following
> changes are done:
>
> Simple cstyle changes in env.c
> Moved efi variable related commands from loader/main.c to libefi/env.c
> Did create function to set "efi-version" environment variable in env.c.
>
> This function does serve two purposes: for first a small clean up of the
> loader main(), and for second, it does replace the otherwise unused
> efi_variable_support hack.
> A bit of cleanup of ficl backend functions. The TEST_MAIN has no meaning,
> and removed few memory leaks.
>
> The forth code is updated to use "efi-version" variable, instead of ficl
> environment check.
>
> Reviewed by: imp
> Approved by: imp (mentor)
> Differential Revision: https://reviews.freebsd.org/D9165
>
> Added:
> head/sys/boot/efi/libefi/wchar.c (contents, props changed)
> Modified:
> head/sys/boot/efi/include/efilib.h
> head/sys/boot/efi/libefi/Makefile
> head/sys/boot/efi/libefi/env.c
> head/sys/boot/efi/loader/main.c
> head/sys/boot/forth/loader.4th
>
This breaks armv6 buildworld:
/usr/src/sys/boot/efi/libefi/env.c:97:50: error: format specifies type
'unsigned long' but the argument has type 'EFI_STATUS' (aka 'unsigned
int') [-Werror,-Wformat]
printf("Can't get the variable: error %#lx\n", status);
~~~~ ^~~~~~
%#x
/usr/src/sys/boot/efi/libefi/env.c:104:50: error: format specifies type
'unsigned long' but the argument has type 'EFI_STATUS' (aka 'unsigned
int') [-Werror,-Wformat]
printf("Can't get the variable: error %#lx\n", status);
~~~~ ^~~~~~
%#x
/usr/src/sys/boot/efi/libefi/env.c:109:35: error: format specifies type
'wchar_t *' (aka 'unsigned int *') but the argument has type 'CHAR16 *'
(aka 'unsigned short *') [-Werror,-Wformat]
printf("%s 0x%x %S", str, attr, varnamearg);
~~ ^~~~~~~~~~
/usr/src/sys/boot/efi/libefi/env.c:111:36: error: format specifies type
'wchar_t *' (aka 'unsigned int *') but the argument has type 'CHAR16 *'
(aka 'unsigned short *') [-Werror,-Wformat]
printf("%s 0x%x %S=", str, attr, varnamearg);
~~ ^~~~~~~~~~
Michal
> Modified: head/sys/boot/efi/include/efilib.h
> ==============================================================================
> --- head/sys/boot/efi/include/efilib.h Wed Feb 1 05:24:17 2017 (r313041)
> +++ head/sys/boot/efi/include/efilib.h Wed Feb 1 08:46:59 2017 (r313042)
> @@ -65,4 +65,12 @@ EFI_STATUS main(int argc, CHAR16 *argv[]
> void exit(EFI_STATUS status);
> void delay(int usecs);
>
> +/* EFI environment initialization. */
> +void efi_init_environment(void);
> +
> +/* CHAR16 utility functions. */
> +int wcscmp(CHAR16 *, CHAR16 *);
> +void cpy8to16(const char *, CHAR16 *, size_t);
> +void cpy16to8(const CHAR16 *, char *, size_t);
> +
> #endif /* _LOADER_EFILIB_H */
>
> Modified: head/sys/boot/efi/libefi/Makefile
> ==============================================================================
> --- head/sys/boot/efi/libefi/Makefile Wed Feb 1 05:24:17 2017 (r313041)
> +++ head/sys/boot/efi/libefi/Makefile Wed Feb 1 08:46:59 2017 (r313042)
> @@ -3,6 +3,7 @@
> .include <src.opts.mk>
>
> .if ${MK_FORTH} != "no"
> +CFLAGS+= -DBOOT_FORTH
> .include "${.CURDIR}/../../Makefile.ficl"
> .endif
>
> @@ -10,17 +11,14 @@ LIB= efi
> INTERNALLIB=
> WARNS?= 2
>
> -SRCS= delay.c devpath.c efi_console.c efinet.c efipart.c errno.c \
> - handles.c libefi.c
> +SRCS= delay.c devpath.c efi_console.c efinet.c efipart.c env.c errno.c \
> + handles.c wchar.c libefi.c
>
> .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
> SRCS+= time.c
> .elif ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "arm"
> SRCS+= time_event.c
> .endif
> -.if ${MK_FORTH} != "no"
> -SRCS+= env.c
> -.endif
>
> # We implement a slightly non-standard %S in that it always takes a
> # CHAR16 that's common in UEFI-land instead of a wchar_t. This only
>
> Modified: head/sys/boot/efi/libefi/env.c
> ==============================================================================
> --- head/sys/boot/efi/libefi/env.c Wed Feb 1 05:24:17 2017 (r313041)
> +++ head/sys/boot/efi/libefi/env.c Wed Feb 1 08:46:59 2017 (r313042)
> @@ -26,15 +26,17 @@
> #include <sys/cdefs.h>
> __FBSDID("$FreeBSD$");
>
> +#include <sys/param.h>
> #include <stand.h>
> #include <string.h>
> #include <efi.h>
> #include <efilib.h>
> #include <uuid.h>
> +#include <stdbool.h>
> #include "bootstrap.h"
> +#ifdef BOOT_FORTH
> #include "ficl.h"
> -
> -int efi_variable_support = 1;
> +#endif
>
> /*
> * Simple wrappers to the underlying UEFI functions.
> @@ -42,36 +44,348 @@ int efi_variable_support = 1;
> * for details.
> */
> EFI_STATUS
> -efi_get_next_variable_name(UINTN *variable_name_size, CHAR16 *variable_name, EFI_GUID *vendor_guid)
> +efi_get_next_variable_name(UINTN *variable_name_size, CHAR16 *variable_name,
> + EFI_GUID *vendor_guid)
> {
> - return RS->GetNextVariableName(variable_name_size, variable_name, vendor_guid);
> + return (RS->GetNextVariableName(variable_name_size, variable_name,
> + vendor_guid));
> }
>
> EFI_STATUS
> -efi_get_variable(CHAR16 *variable_name, EFI_GUID *vendor_guid, UINT32 *attributes, UINTN *data_size,
> - void *data)
> +efi_get_variable(CHAR16 *variable_name, EFI_GUID *vendor_guid,
> + UINT32 *attributes, UINTN *data_size, void *data)
> {
> - return RS->GetVariable(variable_name, vendor_guid, attributes, data_size, data);
> + return (RS->GetVariable(variable_name, vendor_guid, attributes,
> + data_size, data));
> }
>
> EFI_STATUS
> -efi_set_variable(CHAR16 *variable_name, EFI_GUID *vendor_guid, UINT32 attributes, UINTN data_size,
> - void *data)
> +efi_set_variable(CHAR16 *variable_name, EFI_GUID *vendor_guid,
> + UINT32 attributes, UINTN data_size, void *data)
> +{
> + return (RS->SetVariable(variable_name, vendor_guid, attributes,
> + data_size, data));
> +}
> +
> +void
> +efi_init_environment(void)
> +{
> + char var[128];
> +
> + snprintf(var, sizeof(var), "%d.%02d", ST->Hdr.Revision >> 16,
> + ST->Hdr.Revision & 0xffff);
> + env_setenv("efi-version", EV_VOLATILE, var, env_noset, env_nounset);
> +}
> +
> +COMMAND_SET(efishow, "efi-show", "print some or all EFI variables", command_efi_show);
> +
> +static int
> +efi_print_var(CHAR16 *varnamearg, EFI_GUID *matchguid, int lflag)
> {
> - return RS->SetVariable(variable_name, vendor_guid, attributes, data_size, data);
> + UINTN datasz, i;
> + EFI_STATUS status;
> + UINT32 attr;
> + CHAR16 *data;
> + char *str;
> + uint32_t uuid_status;
> + int is_ascii;
> +
> + datasz = 0;
> + status = RS->GetVariable(varnamearg, matchguid, &attr,
> + &datasz, NULL);
> + if (status != EFI_BUFFER_TOO_SMALL) {
> + printf("Can't get the variable: error %#lx\n", status);
> + return (CMD_ERROR);
> + }
> + data = malloc(datasz);
> + status = RS->GetVariable(varnamearg, matchguid, &attr,
> + &datasz, data);
> + if (status != EFI_SUCCESS) {
> + printf("Can't get the variable: error %#lx\n", status);
> + return (CMD_ERROR);
> + }
> + uuid_to_string((uuid_t *)matchguid, &str, &uuid_status);
> + if (lflag) {
> + printf("%s 0x%x %S", str, attr, varnamearg);
> + } else {
> + printf("%s 0x%x %S=", str, attr, varnamearg);
> + is_ascii = 1;
> + free(str);
> + str = (char *)data;
> + for (i = 0; i < datasz - 1; i++) {
> + /* Quick hack to see if this ascii-ish string printable range plus tab, cr and lf */
> + if ((str[i] < 32 || str[i] > 126) && str[i] != 9 && str[i] != 10 && str[i] != 13) {
> + is_ascii = 0;
> + break;
> + }
> + }
> + if (str[datasz - 1] != '\0')
> + is_ascii = 0;
> + if (is_ascii)
> + printf("%s", str);
> + else {
> + for (i = 0; i < datasz / 2; i++) {
> + if (isalnum(data[i]) || isspace(data[i]))
> + printf("%c", data[i]);
> + else
> + printf("\\x%02x", data[i]);
> + }
> + }
> + }
> + free(data);
> + if (pager_output("\n"))
> + return (CMD_WARN);
> + return (CMD_OK);
> }
>
> +static int
> +command_efi_show(int argc, char *argv[])
> +{
> + /*
> + * efi-show [-a]
> + * print all the env
> + * efi-show -u UUID
> + * print all the env vars tagged with UUID
> + * efi-show -v var
> + * search all the env vars and print the ones matching var
> + * eif-show -u UUID -v var
> + * eif-show UUID var
> + * print all the env vars that match UUID and var
> + */
> + /* NB: We assume EFI_GUID is the same as uuid_t */
> + int aflag = 0, gflag = 0, lflag = 0, vflag = 0;
> + int ch, rv;
> + unsigned i;
> + EFI_STATUS status;
> + EFI_GUID varguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
> + EFI_GUID matchguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
> + uint32_t uuid_status;
> + CHAR16 *varname;
> + CHAR16 *newnm;
> + CHAR16 varnamearg[128];
> + UINTN varalloc;
> + UINTN varsz;
> +
> + while ((ch = getopt(argc, argv, "ag:lv:")) != -1) {
> + switch (ch) {
> + case 'a':
> + aflag = 1;
> + break;
> + case 'g':
> + gflag = 1;
> + uuid_from_string(optarg, (uuid_t *)&matchguid,
> + &uuid_status);
> + if (uuid_status != uuid_s_ok) {
> + printf("uid %s could not be parsed\n", optarg);
> + return (CMD_ERROR);
> + }
> + break;
> + case 'l':
> + lflag = 1;
> + break;
> + case 'v':
> + vflag = 1;
> + if (strlen(optarg) >= nitems(varnamearg)) {
> + printf("Variable %s is longer than %zd characters\n",
> + optarg, nitems(varnamearg));
> + return (CMD_ERROR);
> + }
> + for (i = 0; i < strlen(optarg); i++)
> + varnamearg[i] = optarg[i];
> + varnamearg[i] = 0;
> + break;
> + default:
> + printf("Invalid argument %c\n", ch);
> + return (CMD_ERROR);
> + }
> + }
> +
> + if (aflag && (gflag || vflag)) {
> + printf("-a isn't compatible with -v or -u\n");
> + return (CMD_ERROR);
> + }
> +
> + if (aflag && optind < argc) {
> + printf("-a doesn't take any args\n");
> + return (CMD_ERROR);
> + }
> +
> + if (optind == argc)
> + aflag = 1;
> +
> + argc -= optind;
> + argv += optind;
> +
> + pager_open();
> + if (vflag && gflag) {
> + rv = efi_print_var(varnamearg, &matchguid, lflag);
> + pager_close();
> + return (rv);
> + }
> +
> + if (argc == 2) {
> + optarg = argv[0];
> + if (strlen(optarg) >= nitems(varnamearg)) {
> + printf("Variable %s is longer than %zd characters\n",
> + optarg, nitems(varnamearg));
> + pager_close();
> + return (CMD_ERROR);
> + }
> + for (i = 0; i < strlen(optarg); i++)
> + varnamearg[i] = optarg[i];
> + varnamearg[i] = 0;
> + optarg = argv[1];
> + uuid_from_string(optarg, (uuid_t *)&matchguid,
> + &uuid_status);
> + if (uuid_status != uuid_s_ok) {
> + printf("uid %s could not be parsed\n", optarg);
> + pager_close();
> + return (CMD_ERROR);
> + }
> + rv = efi_print_var(varnamearg, &matchguid, lflag);
> + pager_close();
> + return (rv);
> + }
> +
> + if (argc > 0) {
> + printf("Too many args %d\n", argc);
> + pager_close();
> + return (CMD_ERROR);
> + }
> +
> + /*
> + * Initiate the search -- note the standard takes pain
> + * to specify the initial call must be a poiner to a NULL
> + * character.
> + */
> + varalloc = 1024;
> + varname = malloc(varalloc);
> + if (varname == NULL) {
> + printf("Can't allocate memory to get variables\n");
> + pager_close();
> + return (CMD_ERROR);
> + }
> + varname[0] = 0;
> + while (1) {
> + varsz = varalloc;
> + status = RS->GetNextVariableName(&varsz, varname, &varguid);
> + if (status == EFI_BUFFER_TOO_SMALL) {
> + varalloc = varsz;
> + newnm = realloc(varname, varalloc);
> + if (newnm == NULL) {
> + printf("Can't allocate memory to get variables\n");
> + free(varname);
> + pager_close();
> + return (CMD_ERROR);
> + }
> + varname = newnm;
> + continue; /* Try again with bigger buffer */
> + }
> + if (status != EFI_SUCCESS)
> + break;
> + if (aflag) {
> + if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> + break;
> + continue;
> + }
> + if (vflag) {
> + if (wcscmp(varnamearg, varname) == 0) {
> + if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> + break;
> + continue;
> + }
> + }
> + if (gflag) {
> + if (memcmp(&varguid, &matchguid, sizeof(varguid)) == 0) {
> + if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> + break;
> + continue;
> + }
> + }
> + }
> + free(varname);
> + pager_close();
> +
> + return (CMD_OK);
> +}
> +
> +COMMAND_SET(efiset, "efi-set", "set EFI variables", command_efi_set);
> +
> +static int
> +command_efi_set(int argc, char *argv[])
> +{
> + char *uuid, *var, *val;
> + CHAR16 wvar[128];
> + EFI_GUID guid;
> + uint32_t status;
> + EFI_STATUS err;
> +
> + if (argc != 4) {
> + printf("efi-set uuid var new-value\n");
> + return (CMD_ERROR);
> + }
> + uuid = argv[1];
> + var = argv[2];
> + val = argv[3];
> + uuid_from_string(uuid, (uuid_t *)&guid, &status);
> + if (status != uuid_s_ok) {
> + printf("Invalid uuid %s %d\n", uuid, status);
> + return (CMD_ERROR);
> + }
> + cpy8to16(var, wvar, sizeof(wvar));
> + err = RS->SetVariable(wvar, &guid,
> + EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
> + strlen(val) + 1, val);
> + if (EFI_ERROR(err)) {
> + printf("Failed to set variable: error %lu\n", EFI_ERROR_CODE(err));
> + return (CMD_ERROR);
> + }
> + return (CMD_OK);
> +}
> +
> +COMMAND_SET(efiunset, "efi-unset", "delete / unset EFI variables", command_efi_unset);
> +
> +static int
> +command_efi_unset(int argc, char *argv[])
> +{
> + char *uuid, *var;
> + CHAR16 wvar[128];
> + EFI_GUID guid;
> + uint32_t status;
> + EFI_STATUS err;
> +
> + if (argc != 3) {
> + printf("efi-unset uuid var\n");
> + return (CMD_ERROR);
> + }
> + uuid = argv[1];
> + var = argv[2];
> + uuid_from_string(uuid, (uuid_t *)&guid, &status);
> + if (status != uuid_s_ok) {
> + printf("Invalid uuid %s\n", uuid);
> + return (CMD_ERROR);
> + }
> + cpy8to16(var, wvar, sizeof(wvar));
> + err = RS->SetVariable(wvar, &guid, 0, 0, NULL);
> + if (EFI_ERROR(err)) {
> + printf("Failed to unset variable: error %lu\n", EFI_ERROR_CODE(err));
> + return (CMD_ERROR);
> + }
> + return (CMD_OK);
> +}
> +
> +#ifdef BOOT_FORTH
> /*
> - * FreeBSD's loader interaction words and extras
> + * FreeBSD's loader interaction words and extras
> *
> - * efi-setenv ( value n name n guid n attr -- 0 | -1)
> - * efi-getenv ( guid n addr n -- addr' n' | -1 )
> - * efi-unsetenv ( name n guid n'' -- )
> + * efi-setenv ( value n name n guid n attr -- 0 | -1)
> + * efi-getenv ( guid n addr n -- addr' n' | -1 )
> + * efi-unsetenv ( name n guid n'' -- )
> */
>
> /*
> * efi-setenv
> - * efi-setenv ( value n name n guid n attr -- 0 | -1)
> + * efi-setenv ( value n name n guid n attr -- 0 | -1)
> *
> * Set environment variables using the SetVariable EFI runtime service.
> *
> @@ -87,19 +401,18 @@ efi_set_variable(CHAR16 *variable_name,
> * 4 Run time access
> * (corresponding to the same bits in the UEFI spec).
> */
> -void
> +static void
> ficlEfiSetenv(FICL_VM *pVM)
> {
> -#ifndef TESTMAIN
> char *value = NULL, *guid = NULL;
> CHAR16 *name = NULL;
> int i;
> -#endif
> char *namep, *valuep, *guidp;
> int names, values, guids, attr;
> - int status;
> + EFI_STATUS status;
> uuid_t u;
> uint32_t ustatus;
> + bool error = true;
>
> #if FICL_ROBUST > 1
> vmCheckStack(pVM, 6, 0);
> @@ -112,10 +425,9 @@ ficlEfiSetenv(FICL_VM *pVM)
> values = stackPopINT(pVM->pStack);
> valuep = (char*)stackPopPtr(pVM->pStack);
>
> -#ifndef TESTMAIN
> guid = (char*)ficlMalloc(guids);
> if (guid == NULL)
> - vmThrowErr(pVM, "Error: out of memory");
> + goto out;
> memcpy(guid, guidp, guids);
> uuid_from_string(guid, &u, &ustatus);
> if (ustatus != uuid_s_ok) {
> @@ -123,16 +435,16 @@ ficlEfiSetenv(FICL_VM *pVM)
> goto out;
> }
>
> - name = (CHAR16 *)ficlMalloc((names + 1) * sizeof(CHAR16));
> + name = ficlMalloc((names + 1) * sizeof(CHAR16));
> if (name == NULL)
> - vmThrowErr(pVM, "Error: out of memory");
> + goto out;
> for (i = 0; i < names; i++)
> name[i] = namep[i];
> - name[names] = (CHAR16)0;
> + name[names] = 0;
>
> - value = (char*)ficlMalloc(values + 1);
> + value = ficlMalloc(values + 1);
> if (value == NULL)
> - vmThrowErr(pVM, "Error: out of memory");
> + goto out;
> memcpy(value, valuep, values);
>
> status = efi_set_variable(name, (EFI_GUID *)&u, attr, values, value);
> @@ -140,21 +452,20 @@ ficlEfiSetenv(FICL_VM *pVM)
> stackPushINT(pVM->pStack, 0);
> else
> stackPushINT(pVM->pStack, -1);
> + error = false;
> out:
> ficlFree(name);
> ficlFree(value);
> ficlFree(guid);
> -#endif
>
> - return;
> + if (error == true)
> + vmThrowErr(pVM, "Error: out of memory");
> }
>
> -void
> +static void
> ficlEfiGetenv(FICL_VM *pVM)
> {
> -#ifndef TESTMAIN
> char *name, *value;
> -#endif
> char *namep;
> int names;
>
> @@ -164,7 +475,6 @@ ficlEfiGetenv(FICL_VM *pVM)
> names = stackPopINT(pVM->pStack);
> namep = (char*) stackPopPtr(pVM->pStack);
>
> -#ifndef TESTMAIN
> name = (char*) ficlMalloc(names+1);
> if (name == NULL)
> vmThrowErr(pVM, "Error: out of memory");
> @@ -178,18 +488,13 @@ ficlEfiGetenv(FICL_VM *pVM)
> stackPushPtr(pVM->pStack, value);
> stackPushINT(pVM->pStack, strlen(value));
> } else
> -#endif
> stackPushINT(pVM->pStack, -1);
> -
> - return;
> }
>
> -void
> +static void
> ficlEfiUnsetenv(FICL_VM *pVM)
> {
> -#ifndef TESTMAIN
> char *name;
> -#endif
> char *namep;
> int names;
>
> @@ -199,7 +504,6 @@ ficlEfiUnsetenv(FICL_VM *pVM)
> names = stackPopINT(pVM->pStack);
> namep = (char*) stackPopPtr(pVM->pStack);
>
> -#ifndef TESTMAIN
> name = (char*) ficlMalloc(names+1);
> if (name == NULL)
> vmThrowErr(pVM, "Error: out of memory");
> @@ -208,9 +512,6 @@ ficlEfiUnsetenv(FICL_VM *pVM)
>
> unsetenv(name);
> ficlFree(name);
> -#endif
> -
> - return;
> }
>
> /**************************************************************************
> @@ -218,17 +519,14 @@ ficlEfiUnsetenv(FICL_VM *pVM)
> **************************************************************************/
> void ficlEfiCompilePlatform(FICL_SYSTEM *pSys)
> {
> - FICL_DICT *dp = pSys->dp;
> - assert (dp);
> -
> - dictAppendWord(dp, "efi-setenv", ficlEfiSetenv, FW_DEFAULT);
> - dictAppendWord(dp, "efi-getenv", ficlEfiGetenv, FW_DEFAULT);
> - dictAppendWord(dp, "efi-unsetenv", ficlEfiUnsetenv, FW_DEFAULT);
> + FICL_DICT *dp = pSys->dp;
> + assert (dp);
>
> - /* Would like to export the EFI version, but this will do for now */
> - ficlSetEnv(pSys, "efi-boot", 1);
> -
> - return;
> + dictAppendWord(dp, "efi-setenv", ficlEfiSetenv, FW_DEFAULT);
> + dictAppendWord(dp, "efi-getenv", ficlEfiGetenv, FW_DEFAULT);
> + dictAppendWord(dp, "efi-unsetenv", ficlEfiUnsetenv, FW_DEFAULT);
> }
>
> FICL_COMPILE_SET(ficlEfiCompilePlatform);
> +
> +#endif /* BOOT_FORTH */
>
> Added: head/sys/boot/efi/libefi/wchar.c
> ==============================================================================
> --- /dev/null 00:00:00 1970 (empty, because file is newly added)
> +++ head/sys/boot/efi/libefi/wchar.c Wed Feb 1 08:46:59 2017 (r313042)
> @@ -0,0 +1,73 @@
> +/*-
> + * Copyright 2016 Netflix, Inc. All Rights Reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * 2. Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in the
> + * documentation and/or other materials provided with the distribution.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
> + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
> + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
> + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
> + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
> + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
> + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
> + * SUCH DAMAGE.
> + */
> +
> +#include <sys/cdefs.h>
> +__FBSDID("$FreeBSD$");
> +
> +#include <efi.h>
> +#include <efilib.h>
> +
> +/*
> + * CHAR16 related functions moved from loader.
> + * Perhaps we should move those to libstand afterall, but they are
> + * needed only by UEFI.
> + */
> +
> +int
> +wcscmp(CHAR16 *a, CHAR16 *b)
> +{
> +
> + while (*a && *b && *a == *b) {
> + a++;
> + b++;
> + }
> + return *a - *b;
> +}
> +
> +/*
> + * cpy8to16 copies a traditional C string into a CHAR16 string and
> + * 0 terminates it. len is the size of *dst in bytes.
> + */
> +void
> +cpy8to16(const char *src, CHAR16 *dst, size_t len)
> +{
> + len <<= 1; /* Assume CHAR16 is 2 bytes */
> + while (len > 0 && *src) {
> + *dst++ = *src++;
> + len--;
> + }
> + *dst++ = (CHAR16)0;
> +}
> +
> +void
> +cpy16to8(const CHAR16 *src, char *dst, size_t len)
> +{
> + size_t i;
> +
> + for (i = 0; i < len && src[i]; i++)
> + dst[i] = (char)src[i];
> + if (i < len)
> + dst[i] = '\0';
> +}
>
> Modified: head/sys/boot/efi/loader/main.c
> ==============================================================================
> --- head/sys/boot/efi/loader/main.c Wed Feb 1 05:24:17 2017 (r313041)
> +++ head/sys/boot/efi/loader/main.c Wed Feb 1 08:46:59 2017 (r313042)
> @@ -52,22 +52,6 @@ __FBSDID("$FreeBSD$");
>
> extern char bootprog_info[];
>
> -#ifdef BOOT_FORTH
> -/*
> - * Normally, efi.o from libefi.a would be brought in due to a function we call
> - * there that's defined there. However, none of its functions are callable from
> - * here since it just adds words to the FORTH environment or implement those
> - * words. So, add a reference to a symbol in efi.o to force it to be be brought
> - * in so the init function there gets added to the "compile" linker set happens
> - * correctly.
> - *
> - * This assumes there's no global analysys that notices dummy1 isn't used
> - * anywhere and tries to eliminate it.
> - */
> -extern int efi_variable_support;
> -int *dummy1 = &efi_variable_support;
> -#endif
> -
> struct arch_switch archsw; /* MI/MD interface boundary */
>
> EFI_GUID acpi = ACPI_TABLE_GUID;
> @@ -88,32 +72,6 @@ EFI_GUID inputid = SIMPLE_TEXT_INPUT_PRO
> static void efi_zfs_probe(void);
> #endif
>
> -/*
> - * cpy8to16 copies a traditional C string into a CHAR16 string and
> - * 0 terminates it. len is the size of *dst in bytes.
> - */
> -static void
> -cpy8to16(const char *src, CHAR16 *dst, size_t len)
> -{
> - len <<= 1; /* Assume CHAR16 is 2 bytes */
> - while (len > 0 && *src) {
> - *dst++ = *src++;
> - len--;
> - }
> - *dst++ = (CHAR16)0;
> -}
> -
> -static void
> -cpy16to8(const CHAR16 *src, char *dst, size_t len)
> -{
> - size_t i;
> -
> - for (i = 0; i < len && src[i]; i++)
> - dst[i] = (char)src[i];
> - if (i < len)
> - dst[i] = '\0';
> -}
> -
> static int
> has_keyboard(void)
> {
> @@ -455,9 +413,7 @@ main(int argc, CHAR16 *argv[])
> }
> }
>
> - snprintf(var, sizeof(var), "%d.%02d", ST->Hdr.Revision >> 16,
> - ST->Hdr.Revision & 0xffff);
> - env_setenv("efi-version", EV_VOLATILE, var, env_noset, env_nounset);
> + efi_init_environment();
> setenv("LINES", "24", 1); /* optional */
>
> for (k = 0; k < ST->NumberOfTableEntries; k++) {
> @@ -476,19 +432,6 @@ main(int argc, CHAR16 *argv[])
> return (EFI_SUCCESS); /* keep compiler happy */
> }
>
> -/* XXX move to lib stand ? */
> -static int
> -wcscmp(CHAR16 *a, CHAR16 *b)
> -{
> -
> - while (*a && *b && *a == *b) {
> - a++;
> - b++;
> - }
> - return *a - *b;
> -}
> -
> -
> COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
>
> static int
> @@ -770,305 +713,6 @@ command_reloadbe(int argc, char *argv[])
> }
> #endif
>
> -COMMAND_SET(efishow, "efi-show", "print some or all EFI variables", command_efi_show);
> -
> -static int
> -efi_print_var(CHAR16 *varnamearg, EFI_GUID *matchguid, int lflag)
> -{
> - UINTN datasz, i;
> - EFI_STATUS status;
> - UINT32 attr;
> - CHAR16 *data;
> - char *str;
> - uint32_t uuid_status;
> - int is_ascii;
> -
> - datasz = 0;
> - status = RS->GetVariable(varnamearg, matchguid, &attr,
> - &datasz, NULL);
> - if (status != EFI_BUFFER_TOO_SMALL) {
> - printf("Can't get the variable: error %#lx\n", status);
> - return (CMD_ERROR);
> - }
> - data = malloc(datasz);
> - status = RS->GetVariable(varnamearg, matchguid, &attr,
> - &datasz, data);
> - if (status != EFI_SUCCESS) {
> - printf("Can't get the variable: error %#lx\n", status);
> - return (CMD_ERROR);
> - }
> - uuid_to_string((uuid_t *)matchguid, &str, &uuid_status);
> - if (lflag) {
> - printf("%s 0x%x %S", str, attr, varnamearg);
> - } else {
> - printf("%s 0x%x %S=", str, attr, varnamearg);
> - is_ascii = 1;
> - free(str);
> - str = (char *)data;
> - for (i = 0; i < datasz - 1; i++) {
> - /* Quick hack to see if this ascii-ish string printable range plus tab, cr and lf */
> - if ((str[i] < 32 || str[i] > 126) && str[i] != 9 && str[i] != 10 && str[i] != 13) {
> - is_ascii = 0;
> - break;
> - }
> - }
> - if (str[datasz - 1] != '\0')
> - is_ascii = 0;
> - if (is_ascii)
> - printf("%s", str);
> - else {
> - for (i = 0; i < datasz / 2; i++) {
> - if (isalnum(data[i]) || isspace(data[i]))
> - printf("%c", data[i]);
> - else
> - printf("\\x%02x", data[i]);
> - }
> - }
> - }
> - free(data);
> - if (pager_output("\n"))
> - return (CMD_WARN);
> - return (CMD_OK);
> -}
> -
> -static int
> -command_efi_show(int argc, char *argv[])
> -{
> - /*
> - * efi-show [-a]
> - * print all the env
> - * efi-show -u UUID
> - * print all the env vars tagged with UUID
> - * efi-show -v var
> - * search all the env vars and print the ones matching var
> - * eif-show -u UUID -v var
> - * eif-show UUID var
> - * print all the env vars that match UUID and var
> - */
> - /* NB: We assume EFI_GUID is the same as uuid_t */
> - int aflag = 0, gflag = 0, lflag = 0, vflag = 0;
> - int ch, rv;
> - unsigned i;
> - EFI_STATUS status;
> - EFI_GUID varguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
> - EFI_GUID matchguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
> - uint32_t uuid_status;
> - CHAR16 *varname;
> - CHAR16 *newnm;
> - CHAR16 varnamearg[128];
> - UINTN varalloc;
> - UINTN varsz;
> -
> - while ((ch = getopt(argc, argv, "ag:lv:")) != -1) {
> - switch (ch) {
> - case 'a':
> - aflag = 1;
> - break;
> - case 'g':
> - gflag = 1;
> - uuid_from_string(optarg, (uuid_t *)&matchguid,
> - &uuid_status);
> - if (uuid_status != uuid_s_ok) {
> - printf("uid %s could not be parsed\n", optarg);
> - return (CMD_ERROR);
> - }
> - break;
> - case 'l':
> - lflag = 1;
> - break;
> - case 'v':
> - vflag = 1;
> - if (strlen(optarg) >= nitems(varnamearg)) {
> - printf("Variable %s is longer than %zd characters\n",
> - optarg, nitems(varnamearg));
> - return (CMD_ERROR);
> - }
> - for (i = 0; i < strlen(optarg); i++)
> - varnamearg[i] = optarg[i];
> - varnamearg[i] = 0;
> - break;
> - default:
> - printf("Invalid argument %c\n", ch);
> - return (CMD_ERROR);
> - }
> - }
> -
> - if (aflag && (gflag || vflag)) {
> - printf("-a isn't compatible with -v or -u\n");
> - return (CMD_ERROR);
> - }
> -
> - if (aflag && optind < argc) {
> - printf("-a doesn't take any args");
> - return (CMD_ERROR);
> - }
> -
> - if (optind == argc)
> - aflag = 1;
> -
> - argc -= optind;
> - argv += optind;
> -
> - pager_open();
> - if (vflag && gflag) {
> - rv = efi_print_var(varnamearg, &matchguid, lflag);
> - pager_close();
> - return (rv);
> - }
> -
> - if (argc == 2) {
> - optarg = argv[0];
> - if (strlen(optarg) >= nitems(varnamearg)) {
> - printf("Variable %s is longer than %zd characters\n",
> - optarg, nitems(varnamearg));
> - pager_close();
> - return (CMD_ERROR);
> - }
> - for (i = 0; i < strlen(optarg); i++)
> - varnamearg[i] = optarg[i];
> - varnamearg[i] = 0;
> - optarg = argv[1];
> - uuid_from_string(optarg, (uuid_t *)&matchguid,
> - &uuid_status);
> - if (uuid_status != uuid_s_ok) {
> - printf("uid %s could not be parsed\n", optarg);
> - pager_close();
> - return (CMD_ERROR);
> - }
> - rv = efi_print_var(varnamearg, &matchguid, lflag);
> - pager_close();
> - return (rv);
> - }
> -
> - if (argc > 0) {
> - printf("Too many args %d\n", argc);
> - pager_close();
> - return (CMD_ERROR);
> - }
> -
> - /*
> - * Initiate the search -- note the standard takes pain
> - * to specify the initial call must be a poiner to a NULL
> - * character.
> - */
> - varalloc = 1024;
> - varname = malloc(varalloc);
> - if (varname == NULL) {
> - printf("Can't allocate memory to get variables\n");
> - pager_close();
> - return (CMD_ERROR);
> - }
> - varname[0] = 0;
> - while (1) {
> - varsz = varalloc;
> - status = RS->GetNextVariableName(&varsz, varname, &varguid);
> - if (status == EFI_BUFFER_TOO_SMALL) {
> - varalloc = varsz;
> - newnm = malloc(varalloc);
> - if (newnm == NULL) {
> - printf("Can't allocate memory to get variables\n");
> - free(varname);
> - pager_close();
> - return (CMD_ERROR);
> - }
> - memcpy(newnm, varname, varsz);
> - free(varname);
> - varname = newnm;
> - continue; /* Try again with bigger buffer */
> - }
> - if (status != EFI_SUCCESS)
> - break;
> - if (aflag) {
> - if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> - break;
> - continue;
> - }
> - if (vflag) {
> - if (wcscmp(varnamearg, varname) == 0) {
> - if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> - break;
> - continue;
> - }
> - }
> - if (gflag) {
> - if (memcmp(&varguid, &matchguid, sizeof(varguid)) == 0) {
> - if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
> - break;
> - continue;
> - }
> - }
> - }
> - free(varname);
> - pager_close();
> -
> - return (CMD_OK);
> -}
> -
> -COMMAND_SET(efiset, "efi-set", "set EFI variables", command_efi_set);
> -
> -static int
> -command_efi_set(int argc, char *argv[])
> -{
> - char *uuid, *var, *val;
> - CHAR16 wvar[128];
> - EFI_GUID guid;
> - uint32_t status;
> - EFI_STATUS err;
> -
> - if (argc != 4) {
> - printf("efi-set uuid var new-value\n");
> - return (CMD_ERROR);
>
> *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
>
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