OpenSolaris_b135/cmd/boot/bootadm/bootadm_hyper.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <alloca.h>
#include <ctype.h>
#include <sys/types.h>
#include "message.h"
#include "bootadm.h"
#define HYPER_KERNEL_DIR "/platform/i86xpv/kernel"
#define METAL_KERNEL_DIR "/platform/i86pc/kernel"
#define BOOTRC_FILE "/boot/solaris/bootenv.rc"
#define ZFS_BOOTSTR "$ZFS-BOOTFS"
#define BFLAG "-B"
#define DEFAULT_SERIAL "9600,8,n,1"
#define TTYXMODE_TO_COMNUM(ttyxmode) ((int)(*((ttyxmode) + 3) - '`'))
#define COMNAME_TO_COMNUM(comname) ((int)(*((comname) + 3) - '0'))
#define WHITESPC(x) (x)
static char *serial_config[2] = { NULL, NULL };
static char *console_dev = NULL;
static char *bootenv_rc_serial[2] = { NULL, NULL };
static char *bootenv_rc_console = NULL;
static unsigned zfs_boot = 0;
/*
* Append the string pointed to by "str" to the string pointed to by "orig"
* adding the delimeter "delim" in between.
*
* Return a pointer to the new string or NULL, if we were passed a bad string.
*/
static char *
append_str(char *orig, char *str, char *delim)
{
char *newstr;
int len;
if ((str == NULL) || (delim == NULL))
return (NULL);
if ((orig == NULL) || (*orig == NULL)) {
/*
* Return a pointer to a copy of the path so a caller can
* always rely upon being able to free() a returned pointer.
*/
return (s_strdup(str));
}
len = strlen(orig) + strlen(str) + strlen(delim) + 1;
if ((newstr = malloc(len)) == NULL) {
bam_error(NO_MEM, len);
bam_exit(1);
}
(void) snprintf(newstr, len, "%s%s%s", orig, delim, str);
return (newstr);
}
/*
* Replace the substring "old_str" in a path with the substring "new_str"
*
* Return a pointer to the modified string.
*/
static char *
modify_path(char *path, char *old_str, char *new_str)
{
char *newpath;
char *pc;
int len;
/*
* Return a pointer to a copy of the path so a caller can always rely
* upon being able to free() a returned pointer.
*/
if ((pc = strstr(path, old_str)) == NULL)
return (s_strdup(path));
/*
* Allocate space for duplicate of path with name changes and
* NULL terminating byte
*/
len = strlen(path) - strlen(old_str) + strlen(new_str) + 1;
if ((newpath = malloc(len)) == NULL) {
bam_error(NO_MEM, len);
bam_exit(1);
}
(void) strlcpy(newpath, path, (pc - path) + 1);
pc += strlen(old_str);
(void) strcat(newpath, new_str);
(void) strcat(newpath, pc);
return (newpath);
}
/*
* Set "token" to be the the string starting from the pointer "str" delimited
* by any character in the string "delim" or the end of the string, but IGNORE
* any characters between single or double quotes.
*
* Return a pointer to the next non-whitespace character after the delimiter
* or NULL if we hit the end of the string. Also return NULL upon failure to
* find any characters from the delimeter string or upon failure to allocate
* memory for the new token string.
*/
static char *
get_token(char **token, char *str, char *delim)
{
char *dp;
char *start = str;
unsigned len;
*token = NULL;
if ((str == NULL) || (*str == NULL))
return (NULL);
do {
if ((*str == '\'') || (*str == '"')) {
char quote = *str++;
while ((*str != NULL) && (*str != quote))
str++;
/* no matching quote found in string */
if (*str++ == NULL)
return (NULL);
}
/* look for a character from the delimiter string */
for (dp = delim; ((*dp != NULL) && (*dp != *str)); dp++)
;
if (*dp != NULL) {
len = str - start + 1;
/* found a delimiter, so create a token string */
if ((*token = malloc(len)) == NULL) {
bam_error(NO_MEM, len);
bam_exit(1);
}
(void) strlcpy(*token, start, len);
while (isspace((int)*++str))
;
return (str);
}
} while (*str++ != NULL);
/* if we hit the end of the string, the token is the whole string */
*token = s_strdup(start);
return (NULL);
}
/*
* Convert a metal "console" device name to an equivalent one suitable for
* use with the hypervisor.
*
* Default to "vga" if we can't parse the console device.
*/
static void
console_metal_to_hyper(char *console)
{
if ((*console == '\'') || (*console == '"'))
console++;
if (strncmp(console, "ttya", 4) == 0)
console_dev = "console=com1";
else if (strncmp(console, "ttyb", 4) == 0)
console_dev = "console=com2";
else
console_dev = "console=vga";
}
static int
set_serial_rate(int com, char *rate)
{
char **rp = &serial_config[com - 1];
if ((com < 1) || (com > 2))
return (-1);
/*
* If rate is a NULL pointer, erase any existing serial configuration
* for this serial port.
*/
if (rate == NULL) {
if (*rp != NULL) {
free(*rp);
*rp = NULL;
}
return (0);
}
*rp = s_realloc(*rp, strlen(rate) + 1);
(void) strcpy(*rp, rate);
return (0);
}
/*
* Convert "metal" serial port parameters to values compatible with the
* hypervisor.
*
* Return 0 on success, otherwise -1.
*/
static int
serial_metal_to_hyper(char *metal_port, char *metal_serial)
{
#define COM_RATE_LEN 16 /* strlen("com1=115200,8n1") */
char com_rate[COM_RATE_LEN];
unsigned com, baud, bits, stop;
char parity, handshake;
if ((strcmp(metal_port, "ttya-mode") == 0) ||
(strcmp(metal_port, "ttyb-mode") == 0))
com = TTYXMODE_TO_COMNUM(metal_port);
else
return (-1);
if ((*metal_serial == '\'') || (*metal_serial == '"'))
metal_serial++;
/*
* Check if it's specified as the default rate; if so it defaults to
* "auto" and we need not set it for they hypervisor.
*/
if (strncmp(metal_serial, DEFAULT_SERIAL,
strlen(DEFAULT_SERIAL)) == 0) {
(void) set_serial_rate(com, NULL);
return (0);
}
/* read the serial port format as set forth in common/io/asy.c */
if (sscanf(metal_serial, "%u,%u,%c,%u,%c", &baud, &bits, &parity, &stop,
&handshake) != 5)
return (-1);
/* validate serial port parameters */
if (((bits < 5) || (bits > 8)) || (stop > 1) ||
((parity != 'n') && (parity != 'e') && (parity != 'o')) ||
((handshake != '-') && (handshake != 'h') && (handshake != 's')))
return (-1);
/* validate baud rate */
switch (baud) {
case 150:
case 300:
case 600:
case 1200:
case 2400:
case 4800:
case 9600:
case 19200:
case 38400:
case 57600:
case 115200:
break;
default:
return (-1);
}
/*
* The hypervisor has no way to specify a handshake method, so it gets
* quietly dropped in the conversion.
*/
(void) snprintf(com_rate, COM_RATE_LEN, "com%d=%u,%u%c%u", com, baud,
bits, parity, stop);
(void) set_serial_rate(com, com_rate);
return (0);
}
/*
* Convert "name=value" metal options to values suitable for use with the
* hypervisor.
*
* Our main concerns are the console device and serial port settings.
*
* Return values:
*
* -1: Unparseable line
* 0: Success
* (n > 0): A property unimportant to us
*/
static int
cvt_metal_option(char *optstr)
{
char *value;
unsigned namlen;
if (strcmp(optstr, ZFS_BOOTSTR) == 0) {
zfs_boot = 1;
return (0);
}
if ((value = strchr(optstr, '=')) == NULL)
return (-1);
namlen = value - optstr;
if (*++value == NULL)
return (1);
if (strncmp(optstr, "console", namlen) == 0) {
console_metal_to_hyper(value);
return (0);
}
if ((strncmp(optstr, "ttya-mode", namlen) == 0) ||
(strncmp(optstr, "ttyb-mode", namlen) == 0)) {
char *port = alloca(namlen + 1);
(void) strlcpy(port, optstr, namlen + 1);
return (serial_metal_to_hyper(port, value));
}
return (1);
}
/*
* Convert "name=value" properties for use with a bare metal kernel
*
* Our main concerns are the console setting and serial port modes.
*
* Return values:
*
* -1: Unparseable line
* 0: Success
* (n > 0): A property unimportant to us
*/
static int
cvt_hyper_option(char *optstr)
{
#define SER_LEN 15 /* strlen("115200,8,n,1,-") + 1 */
char ser[SER_LEN];
char *value;
unsigned namlen;
unsigned baud;
char bits, parity, stop;
if (strcmp(optstr, ZFS_BOOTSTR) == 0) {
zfs_boot = 1;
return (0);
}
/*
* If there's no "=" in the token, it's likely a standalone
* hypervisor token we don't care about (e.g. "noreboot" or
* "nosmp") so we ignore it.
*/
if ((value = strchr(optstr, '=')) == NULL)
return (1);
namlen = value - optstr;
if (*++value == NULL)
return (1);
/*
* Note that we use strncmp against the values because the
* hypervisor allows setting console parameters for both the
* console and debugger via the format:
*
* console=cons_dev,debug_dev
*
* and we only care about "cons_dev."
*
* This also allows us to extract "comN" from hypervisor constructs
* like "com1H" or "com2L," concepts unsupported on bare metal kernels.
*
* Default the console device to "text" if it was "vga" or was
* unparseable.
*/
if (strncmp(optstr, "console", namlen) == 0) {
/* ignore the "console=hypervisor" option */
if (strcmp(value, "hypervisor") == 0)
return (0);
if (strncmp(value, "com1", 4) == 0)
console_dev = "ttya";
else if (strncmp(value, "com2", 4) == 0)
console_dev = "ttyb";
else
console_dev = "text";
}
/* serial port parameter conversion */
if ((strncmp(optstr, "com1", namlen) == 0) ||
(strncmp(optstr, "com2", namlen) == 0)) {
unsigned com = COMNAME_TO_COMNUM(optstr);
/*
* Check if it's "auto" - if so, use the default setting
* of "9600,8,n,1,-".
*
* We can't just assume the serial port will default to
* "9600,8,n,1" as there could be a directive in bootenv.rc
* that would set it to some other value and we want the serial
* parameters to be the same as that used by the hypervisor.
*/
if (strcmp(value, "auto") == 0) {
(void) snprintf(ser, SER_LEN, "9600,8,n,1,-");
} else {
/*
* Extract the "B,PS" setting from the com line; ignore
* other settings like io_base or IRQ.
*/
if (sscanf(value, "%u,%c%c%c", &baud, &bits, &parity,
&stop) != 4)
return (-1);
/* validate serial port parameters */
if (((stop != '0') && (stop != '1')) ||
((bits < '5') && (bits > '8')) ||
((parity != 'n') && (parity != 'e') &&
(parity != 'o')))
return (-1);
/* validate baud rate */
switch (baud) {
case 150:
case 300:
case 600:
case 1200:
case 2400:
case 4800:
case 19200:
case 38400:
case 57600:
case 115200:
break;
default:
return (-1);
}
/*
* As the hypervisor has no way to denote handshaking
* in its serial port settings, emit a metal serial
* port configuration with none as well.
*/
(void) snprintf(ser, SER_LEN, "%u,%c,%c,%c,-", baud,
bits, parity, stop);
}
if (set_serial_rate(com, ser) != 0)
return (-1);
return (0);
}
return (1);
}
/*
* Parse a hardware kernel's "kernel$" specifier into parameters we can then
* use to construct an appropriate "module$" line that can be used to specify
* how to boot the hypervisor's dom0.
*
* Return values:
*
* -1: error parsing kernel path
* 0: success
* 1: kernel already a hypervisor kernel
*/
static int
cvt_metal_kernel(char *kernstr, char **path)
{
char *token, *parsestr;
parsestr = get_token(path, kernstr, " \t,");
if (*path == NULL)
return (-1);
/*
* If the metal kernel specified contains the name of the hypervisor,
* we're probably trying to convert an entry already setup to run the
* hypervisor, so error out now.
*/
if (strstr(*path, XEN_MENU) != NULL) {
bam_error(ALREADY_HYPER);
free(*path);
*path = NULL;
return (1);
}
/* if the path was the last item on the line, that's OK. */
if ((parsestr = get_token(&token, parsestr, " \t,")) == NULL) {
if (token != NULL)
free(token);
return (0);
}
/* if the next token is "-B" process boot options */
if (strncmp(token, BFLAG, strlen(BFLAG)) != 0) {
free(token);
return (0);
}
free(token);
while ((parsestr = get_token(&token, parsestr, ",")) != NULL) {
(void) cvt_metal_option(token);
free(token);
}
if (token != NULL) {
(void) cvt_metal_option(token);
free(token);
}
return (0);
}
/*
* Parse a hypervisor's "kernel$" line into parameters that can be used to
* help build an appropriate "kernel$" line for booting a bare metal kernel.
*
* Return 0 on success, non-zero on failure.
*/
static int
cvt_hyper_kernel(char *kernel)
{
char *token, *parsestr;
parsestr = get_token(&token, kernel, " \t,");
if (token == NULL)
return (-1);
/*
* If the hypervisor kernel specified lives in the metal kernel
* directory, we're probably trying to convert an entry already setup
* to run on bare metal, so error out now.
*/
if (strncmp(token, METAL_KERNEL_DIR, strlen(METAL_KERNEL_DIR)) == 0) {
bam_error(ALREADY_METAL);
free(token);
return (-1);
}
free(token);
/* check for kernel options */
while ((parsestr = get_token(&token, parsestr, " ")) != NULL) {
(void) cvt_hyper_option(token);
free(token);
}
if (token != NULL) {
(void) cvt_hyper_option(token);
free(token);
}
return (0);
}
/*
* Parse a hypervisor's "module$" line into parameters that can be used to
* help build an appropriate "kernel$" line for booting a bare metal kernel.
*/
static void
cvt_hyper_module(char *modstr, char **path)
{
char *token = NULL;
char *parsestr = modstr;
/*
* If multiple pathnames exist on the module$ line, we just want
* the last one.
*/
while ((parsestr = get_token(path, parsestr, " \t,")) != NULL) {
if (*parsestr != '/')
break;
else
free(*path);
}
/* if the path was the last item on the line, that's OK. */
if ((parsestr == NULL) ||
((parsestr = get_token(&token, parsestr, " \t,")) == NULL)) {
if (token != NULL)
free(token);
return;
}
if (token == NULL)
return;
/* check for "-B" option */
if (strncmp(token, BFLAG, strlen(BFLAG)) != 0) {
free(token);
return;
}
free(token);
/* check for kernel options */
while ((parsestr = get_token(&token, parsestr, ",")) != NULL) {
(void) cvt_hyper_option(token);
free(token);
}
if (token != NULL) {
(void) cvt_hyper_option(token);
free(token);
}
}
static void
parse_bootenvrc(char *osroot)
{
#define LINEBUF_SZ 1024
FILE *fp;
char *rcpath;
char line[LINEBUF_SZ]; /* make line buffer large but not ridiculous */
int len;
assert(osroot);
len = strlen(osroot) + strlen(BOOTRC_FILE) + 1;
rcpath = alloca(len);
(void) snprintf(rcpath, len, "%s%s", osroot, BOOTRC_FILE);
/* if we couldn't open the bootenv.rc file, ignore the issue. */
if ((fp = fopen(rcpath, "r")) == NULL) {
BAM_DPRINTF((D_NO_BOOTENVRC, rcpath, strerror(errno)));
return;
}
while (s_fgets(line, LINEBUF_SZ, fp) != NULL) {
char *parsestr, *token;
int port = 0;
/* we're only interested in parsing "setprop" directives. */
if (strncmp(line, "setprop", 7) != NULL)
continue;
/* eat initial "setprop" */
if ((parsestr = get_token(&token, line, " \t")) == NULL) {
if (token != NULL)
free(token);
continue;
}
if (strcmp(token, "setprop") != 0) {
free(token);
continue;
}
free(token);
/* get property name */
if ((parsestr = get_token(&token, parsestr, " \t")) == NULL) {
if (token != NULL)
free(token);
continue;
}
if (strcmp(token, "console") == 0) {
free(token);
/* get console property value */
parsestr = get_token(&token, parsestr, " \t");
if (token == NULL)
continue;
if (bootenv_rc_console != NULL)
free(bootenv_rc_console);
bootenv_rc_console = s_strdup(token);
continue;
}
/* check if it's a serial port setting */
if (strcmp(token, "ttya-mode") == 0) {
free(token);
port = 0;
} else if (strcmp(token, "ttyb-mode") == 0) {
free(token);
port = 1;
} else {
/* nope, so check the next line */
free(token);
continue;
}
/* get serial port setting */
parsestr = get_token(&token, parsestr, " \t");
if (token == NULL)
continue;
if (bootenv_rc_serial[port] != NULL)
free(bootenv_rc_serial[port]);
bootenv_rc_serial[port] = s_strdup(token);
free(token);
}
(void) fclose(fp);
}
error_t
cvt_to_hyper(menu_t *mp, char *osroot, char *extra_args)
{
const char *fcn = "cvt_to_hyper()";
line_t *lp;
entry_t *ent;
size_t len, zfslen;
char *newstr;
char *osdev;
char *title = NULL;
char *findroot = NULL;
char *bootfs = NULL;
char *kernel = NULL;
char *mod_kernel = NULL;
char *module = NULL;
char *kern_path = NULL;
char *kern_bargs = NULL;
int curdef, newdef;
int kp_allocated = 0;
int ret = BAM_ERROR;
assert(osroot);
BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, extra_args));
/*
* First just check to verify osroot is a sane directory.
*/
if ((osdev = get_special(osroot)) == NULL) {
bam_error(CANT_FIND_SPECIAL, osroot);
return (BAM_ERROR);
}
free(osdev);
/*
* While the effect is purely cosmetic, if osroot is "/" don't
* bother prepending it to any paths as they are constructed to
* begin with "/" anyway.
*/
if (strcmp(osroot, "/") == 0)
osroot = "";
/*
* Found the GRUB signature on the target partitions, so now get the
* default GRUB boot entry number from the menu.lst file
*/
curdef = atoi(mp->curdefault->arg);
/* look for the first line of the matching boot entry */
for (ent = mp->entries; ((ent != NULL) && (ent->entryNum != curdef));
ent = ent->next)
;
/* couldn't find it, so error out */
if (ent == NULL) {
bam_error(CANT_FIND_DEFAULT, curdef);
goto abort;
}
/*
* We found the proper menu entry, so first we need to process the
* bootenv.rc file to look for boot options the hypervisor might need
* passed as kernel start options such as the console device and serial
* port parameters.
*
* If there's no bootenv.rc, it's not an issue.
*/
parse_bootenvrc(osroot);
if (bootenv_rc_console != NULL)
console_metal_to_hyper(bootenv_rc_console);
if (bootenv_rc_serial[0] != NULL)
(void) serial_metal_to_hyper("ttya-mode", bootenv_rc_serial[0]);
if (bootenv_rc_serial[1] != NULL)
(void) serial_metal_to_hyper("ttyb-mode", bootenv_rc_serial[1]);
/*
* Now process the entry itself.
*/
for (lp = ent->start; lp != NULL; lp = lp->next) {
/*
* Process important lines from menu.lst boot entry.
*/
if (lp->flags == BAM_TITLE) {
title = alloca(strlen(lp->arg) + 1);
(void) strcpy(title, lp->arg);
} else if (lp->cmd != NULL) {
if (strcmp(lp->cmd, "findroot") == 0) {
findroot = alloca(strlen(lp->arg) + 1);
(void) strcpy(findroot, lp->arg);
} else if (strcmp(lp->cmd, "bootfs") == 0) {
bootfs = alloca(strlen(lp->arg) + 1);
(void) strcpy(bootfs, lp->arg);
} else if (strcmp(lp->cmd,
menu_cmds[MODULE_DOLLAR_CMD]) == 0) {
module = alloca(strlen(lp->arg) + 1);
(void) strcpy(module, lp->arg);
} else if ((strcmp(lp->cmd,
menu_cmds[KERNEL_DOLLAR_CMD]) == 0) &&
(ret = cvt_metal_kernel(lp->arg,
&kern_path)) != 0) {
if (ret < 0) {
ret = BAM_ERROR;
bam_error(KERNEL_NOT_PARSEABLE, curdef);
} else
ret = BAM_NOCHANGE;
goto abort;
}
}
if (lp == ent->end)
break;
}
/*
* If findroot, module or kern_path are NULL, the boot entry is
* malformed.
*/
if (findroot == NULL) {
bam_error(FINDROOT_NOT_FOUND, curdef);
goto abort;
}
if (module == NULL) {
bam_error(MODULE_NOT_PARSEABLE, curdef);
goto abort;
}
if (kern_path == NULL) {
bam_error(KERNEL_NOT_FOUND, curdef);
goto abort;
}
/* assemble new kernel and module arguments from parsed values */
if (console_dev != NULL) {
kern_bargs = s_strdup(console_dev);
if (serial_config[0] != NULL) {
newstr = append_str(kern_bargs, serial_config[0], " ");
free(kern_bargs);
kern_bargs = newstr;
}
if (serial_config[1] != NULL) {
newstr = append_str(kern_bargs, serial_config[1], " ");
free(kern_bargs);
kern_bargs = newstr;
}
}
if ((extra_args != NULL) && (*extra_args != NULL)) {
newstr = append_str(kern_bargs, extra_args, " ");
free(kern_bargs);
kern_bargs = newstr;
}
len = strlen(osroot) + strlen(XEN_MENU) + strlen(kern_bargs) +
WHITESPC(1) + 1;
kernel = alloca(len);
if (kern_bargs != NULL) {
if (*kern_bargs != NULL)
(void) snprintf(kernel, len, "%s%s %s", osroot,
XEN_MENU, kern_bargs);
free(kern_bargs);
} else {
(void) snprintf(kernel, len, "%s%s", osroot, XEN_MENU);
}
/*
* Change the kernel directory from the metal version to that needed for
* the hypervisor. Convert either "direct boot" path to the default
* path.
*/
if ((strcmp(kern_path, DIRECT_BOOT_32) == 0) ||
(strcmp(kern_path, DIRECT_BOOT_64) == 0)) {
kern_path = HYPERVISOR_KERNEL;
} else {
newstr = modify_path(kern_path, METAL_KERNEL_DIR,
HYPER_KERNEL_DIR);
free(kern_path);
kern_path = newstr;
kp_allocated = 1;
}
/*
* We need to allocate space for the kernel path (twice) plus an
* intervening space, possibly the ZFS boot string, and NULL,
* of course.
*/
len = (strlen(kern_path) * 2) + WHITESPC(1) + 1;
zfslen = (zfs_boot ? (WHITESPC(1) + strlen(ZFS_BOOT)) : 0);
mod_kernel = alloca(len + zfslen);
(void) snprintf(mod_kernel, len, "%s %s", kern_path, kern_path);
if (kp_allocated)
free(kern_path);
if (zfs_boot) {
char *zfsstr = alloca(zfslen + 1);
(void) snprintf(zfsstr, zfslen + 1, " %s", ZFS_BOOT);
(void) strcat(mod_kernel, zfsstr);
}
/* shut off warning messages from the entry line parser */
if (ent->flags & BAM_ENTRY_BOOTADM)
ent->flags &= ~BAM_ENTRY_BOOTADM;
BAM_DPRINTF((D_CVT_CMD_KERN_DOLLAR, fcn, kernel));
BAM_DPRINTF((D_CVT_CMD_MOD_DOLLAR, fcn, mod_kernel));
if ((newdef = add_boot_entry(mp, title, findroot, kernel, mod_kernel,
module, bootfs)) == BAM_ERROR)
return (newdef);
/*
* Now try to delete the current default entry from the menu and add
* the new hypervisor entry with the parameters we've setup.
*/
if (delete_boot_entry(mp, curdef, DBE_QUIET) == BAM_SUCCESS)
newdef--;
else
bam_print(NEW_BOOT_ENTRY, title);
/*
* If we successfully created the new entry, set the default boot
* entry to that entry and let the caller know the new menu should
* be written out.
*/
return (set_global(mp, menu_cmds[DEFAULT_CMD], newdef));
abort:
if (ret != BAM_NOCHANGE)
bam_error(HYPER_ABORT, ((*osroot == NULL) ? "/" : osroot));
return (ret);
}
/*ARGSUSED*/
error_t
cvt_to_metal(menu_t *mp, char *osroot, char *menu_root)
{
const char *fcn = "cvt_to_metal()";
line_t *lp;
entry_t *ent;
size_t len, zfslen;
char *delim = ",";
char *newstr;
char *osdev;
char *title = NULL;
char *findroot = NULL;
char *bootfs = NULL;
char *kernel = NULL;
char *module = NULL;
char *barchive_path = DIRECT_BOOT_ARCHIVE;
char *kern_path = NULL;
int curdef, newdef;
int emit_bflag = 1;
int ret = BAM_ERROR;
assert(osroot);
BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, ""));
/*
* First just check to verify osroot is a sane directory.
*/
if ((osdev = get_special(osroot)) == NULL) {
bam_error(CANT_FIND_SPECIAL, osroot);
return (BAM_ERROR);
}
free(osdev);
/*
* Found the GRUB signature on the target partitions, so now get the
* default GRUB boot entry number from the menu.lst file
*/
curdef = atoi(mp->curdefault->arg);
/* look for the first line of the matching boot entry */
for (ent = mp->entries; ((ent != NULL) && (ent->entryNum != curdef));
ent = ent->next)
;
/* couldn't find it, so error out */
if (ent == NULL) {
bam_error(CANT_FIND_DEFAULT, curdef);
goto abort;
}
/*
* Now process the entry itself.
*/
for (lp = ent->start; lp != NULL; lp = lp->next) {
/*
* Process important lines from menu.lst boot entry.
*/
if (lp->flags == BAM_TITLE) {
title = alloca(strlen(lp->arg) + 1);
(void) strcpy(title, lp->arg);
} else if (lp->cmd != NULL) {
if (strcmp(lp->cmd, "findroot") == 0) {
findroot = alloca(strlen(lp->arg) + 1);
(void) strcpy(findroot, lp->arg);
} else if (strcmp(lp->cmd, "bootfs") == 0) {
bootfs = alloca(strlen(lp->arg) + 1);
(void) strcpy(bootfs, lp->arg);
} else if (strcmp(lp->cmd,
menu_cmds[MODULE_DOLLAR_CMD]) == 0) {
if (strstr(lp->arg, "boot_archive") == NULL) {
module = alloca(strlen(lp->arg) + 1);
(void) strcpy(module, lp->arg);
cvt_hyper_module(module, &kern_path);
} else {
barchive_path =
alloca(strlen(lp->arg) + 1);
(void) strcpy(barchive_path, lp->arg);
}
} else if ((strcmp(lp->cmd,
menu_cmds[KERNEL_DOLLAR_CMD]) == 0) &&
(cvt_hyper_kernel(lp->arg) < 0)) {
ret = BAM_NOCHANGE;
goto abort;
}
}
if (lp == ent->end)
break;
}
/*
* If findroot, module or kern_path are NULL, the boot entry is
* malformed.
*/
if (findroot == NULL) {
bam_error(FINDROOT_NOT_FOUND, curdef);
goto abort;
}
if (module == NULL) {
bam_error(MODULE_NOT_PARSEABLE, curdef);
goto abort;
}
if (kern_path == NULL) {
bam_error(KERNEL_NOT_FOUND, curdef);
goto abort;
}
/*
* Assemble new kernel and module arguments from parsed values.
*
* First, change the kernel directory from the hypervisor version to
* that needed for a metal kernel.
*/
newstr = modify_path(kern_path, HYPER_KERNEL_DIR, METAL_KERNEL_DIR);
free(kern_path);
kern_path = newstr;
/* allocate initial space for the kernel path */
len = strlen(kern_path) + 1;
zfslen = (zfs_boot ? (WHITESPC(1) + strlen(ZFS_BOOT)) : 0);
if ((kernel = malloc(len + zfslen)) == NULL) {
free(kern_path);
bam_error(NO_MEM, len + zfslen);
bam_exit(1);
}
(void) snprintf(kernel, len, "%s", kern_path);
free(kern_path);
if (zfs_boot) {
char *zfsstr = alloca(zfslen + 1);
(void) snprintf(zfsstr, zfslen + 1, " %s", ZFS_BOOT);
(void) strcat(kernel, zfsstr);
emit_bflag = 0;
}
/*
* Process the bootenv.rc file to look for boot options that would be
* the same as what the hypervisor had manually set, as we need not set
* those explicitly.
*
* If there's no bootenv.rc, it's not an issue.
*/
parse_bootenvrc(osroot);
/*
* Don't emit a console setting if it's the same as what would be
* set by bootenv.rc.
*/
if ((console_dev != NULL) && (bootenv_rc_console == NULL ||
(strcmp(console_dev, bootenv_rc_console) != 0))) {
if (emit_bflag) {
newstr = append_str(kernel, BFLAG, " ");
free(kernel);
kernel = append_str(newstr, "console=", " ");
free(newstr);
newstr = append_str(kernel, console_dev, "");
free(kernel);
kernel = newstr;
emit_bflag = 0;
} else {
newstr = append_str(kernel, "console=", ",");
free(kernel);
kernel = append_str(newstr, console_dev, "");
free(newstr);
}
}
/*
* We have to do some strange processing here because the hypervisor's
* serial ports default to "9600,8,n,1,-" if "comX=auto" is specified,
* or to "auto" if nothing is specified.
*
* This could result in a serial mode setting string being added when
* it would otherwise not be needed, but it's better to play it safe.
*/
if (emit_bflag) {
newstr = append_str(kernel, BFLAG, " ");
free(kernel);
kernel = newstr;
delim = " ";
emit_bflag = 0;
}
if ((serial_config[0] != NULL) && (bootenv_rc_serial[0] == NULL ||
(strcmp(serial_config[0], bootenv_rc_serial[0]) != 0))) {
newstr = append_str(kernel, "ttya-mode='", delim);
free(kernel);
/*
* Pass the serial configuration as the delimiter to
* append_str() as it will be inserted between the current
* string and the string we're appending, in this case the
* closing single quote.
*/
kernel = append_str(newstr, "'", serial_config[0]);
free(newstr);
delim = ",";
}
if ((serial_config[1] != NULL) && (bootenv_rc_serial[1] == NULL ||
(strcmp(serial_config[1], bootenv_rc_serial[1]) != 0))) {
newstr = append_str(kernel, "ttyb-mode='", delim);
free(kernel);
/*
* Pass the serial configuration as the delimiter to
* append_str() as it will be inserted between the current
* string and the string we're appending, in this case the
* closing single quote.
*/
kernel = append_str(newstr, "'", serial_config[1]);
free(newstr);
delim = ",";
}
/* shut off warning messages from the entry line parser */
if (ent->flags & BAM_ENTRY_BOOTADM)
ent->flags &= ~BAM_ENTRY_BOOTADM;
BAM_DPRINTF((D_CVT_CMD_KERN_DOLLAR, fcn, kernel));
BAM_DPRINTF((D_CVT_CMD_MOD_DOLLAR, fcn, module));
if ((newdef = add_boot_entry(mp, title, findroot, kernel, NULL,
barchive_path, bootfs)) == BAM_ERROR) {
free(kernel);
return (newdef);
}
/*
* Now try to delete the current default entry from the menu and add
* the new hypervisor entry with the parameters we've setup.
*/
if (delete_boot_entry(mp, curdef, DBE_QUIET) == BAM_SUCCESS)
newdef--;
else
bam_print(NEW_BOOT_ENTRY, title);
free(kernel);
/*
* If we successfully created the new entry, set the default boot
* entry to that entry and let the caller know the new menu should
* be written out.
*/
return (set_global(mp, menu_cmds[DEFAULT_CMD], newdef));
abort:
if (ret != BAM_NOCHANGE)
bam_error(METAL_ABORT, osroot);
return (ret);
}