OpenSolaris_b135/cmd/boot/bootadm/bootadm_upgrade.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 <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#include <fcntl.h>
#include <strings.h>
#include <sys/mman.h>
#include <sys/elf.h>
#include <sys/multiboot.h>
#include "message.h"
#include "bootadm.h"
direct_or_multi_t bam_direct = BAM_DIRECT_NOT_SET;
hv_t bam_is_hv = BAM_HV_UNKNOWN;
findroot_t bam_is_findroot = BAM_FINDROOT_UNKNOWN;
static void
get_findroot_cap(const char *osroot)
{
FILE *fp;
char path[PATH_MAX];
char buf[BAM_MAXLINE];
struct stat sb;
int dboot;
int error;
int ret;
const char *fcn = "get_findroot_cap()";
assert(is_grub(osroot));
(void) snprintf(path, sizeof (path), "%s/%s",
osroot, "boot/grub/capability");
if (stat(path, &sb) == -1) {
bam_is_findroot = BAM_FINDROOT_ABSENT;
BAM_DPRINTF((D_FINDROOT_ABSENT, fcn));
return;
}
fp = fopen(path, "r");
error = errno;
INJECT_ERROR1("GET_CAP_FINDROOT_FOPEN", fp = NULL);
if (fp == NULL) {
bam_error(OPEN_FAIL, path, strerror(error));
return;
}
dboot = 0;
while (s_fgets(buf, sizeof (buf), fp) != NULL) {
if (strcmp(buf, "findroot") == 0) {
BAM_DPRINTF((D_FINDROOT_PRESENT, fcn));
bam_is_findroot = BAM_FINDROOT_PRESENT;
}
if (strcmp(buf, "dboot") == 0) {
BAM_DPRINTF((D_DBOOT_PRESENT, fcn));
dboot = 1;
}
}
assert(dboot);
if (bam_is_findroot == BAM_FINDROOT_UNKNOWN) {
bam_is_findroot = BAM_FINDROOT_ABSENT;
BAM_DPRINTF((D_FINDROOT_ABSENT, fcn));
}
out:
ret = fclose(fp);
error = errno;
INJECT_ERROR1("GET_CAP_FINDROOT_FCLOSE", ret = 1);
if (ret != 0) {
bam_error(CLOSE_FAIL, path, strerror(error));
}
}
error_t
get_boot_cap(const char *osroot)
{
char fname[PATH_MAX];
char *image;
uchar_t *ident;
int fd;
int m;
multiboot_header_t *mbh;
struct stat sb;
int error;
const char *fcn = "get_boot_cap()";
if (is_sparc()) {
/* there is no non dboot sparc new-boot */
bam_direct = BAM_DIRECT_DBOOT;
BAM_DPRINTF((D_IS_SPARC_DBOOT, fcn));
return (BAM_SUCCESS);
}
if (!is_grub(osroot)) {
bam_error(NOT_GRUB_ROOT, osroot);
return (BAM_ERROR);
}
(void) snprintf(fname, PATH_MAX, "%s/%s", osroot,
"platform/i86pc/kernel/unix");
fd = open(fname, O_RDONLY);
error = errno;
INJECT_ERROR1("GET_CAP_UNIX_OPEN", fd = -1);
if (fd < 0) {
bam_error(OPEN_FAIL, fname, strerror(error));
return (BAM_ERROR);
}
/*
* Verify that this is a sane unix at least 8192 bytes in length
*/
if (fstat(fd, &sb) == -1 || sb.st_size < 8192) {
(void) close(fd);
bam_error(INVALID_BINARY, fname);
return (BAM_ERROR);
}
/*
* mmap the first 8K
*/
image = mmap(NULL, 8192, PROT_READ, MAP_SHARED, fd, 0);
error = errno;
INJECT_ERROR1("GET_CAP_MMAP", image = MAP_FAILED);
if (image == MAP_FAILED) {
bam_error(MMAP_FAIL, fname, strerror(error));
return (BAM_ERROR);
}
ident = (uchar_t *)image;
if (ident[EI_MAG0] != ELFMAG0 || ident[EI_MAG1] != ELFMAG1 ||
ident[EI_MAG2] != ELFMAG2 || ident[EI_MAG3] != ELFMAG3) {
bam_error(NOT_ELF_FILE, fname);
return (BAM_ERROR);
}
if (ident[EI_CLASS] != ELFCLASS32) {
bam_error(WRONG_ELF_CLASS, fname, ident[EI_CLASS]);
return (BAM_ERROR);
}
/*
* The GRUB multiboot header must be 32-bit aligned and completely
* contained in the 1st 8K of the file. If the unix binary has
* a multiboot header, then it is a 'dboot' kernel. Otherwise,
* this kernel must be booted via multiboot -- we call this a
* 'multiboot' kernel.
*/
bam_direct = BAM_DIRECT_MULTIBOOT;
for (m = 0; m < 8192 - sizeof (multiboot_header_t); m += 4) {
mbh = (void *)(image + m);
if (mbh->magic == MB_HEADER_MAGIC) {
BAM_DPRINTF((D_IS_DBOOT, fcn));
bam_direct = BAM_DIRECT_DBOOT;
break;
}
}
(void) munmap(image, 8192);
(void) close(fd);
INJECT_ERROR1("GET_CAP_MULTIBOOT", bam_direct = BAM_DIRECT_MULTIBOOT);
if (bam_direct == BAM_DIRECT_DBOOT) {
if (bam_is_hv == BAM_HV_PRESENT) {
BAM_DPRINTF((D_IS_XVM, fcn));
} else {
BAM_DPRINTF((D_IS_NOT_XVM, fcn));
}
} else {
BAM_DPRINTF((D_IS_MULTIBOOT, fcn));
}
/* Not a fatal error if this fails */
get_findroot_cap(osroot);
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
return (BAM_SUCCESS);
}
#define INST_RELEASE "var/sadm/system/admin/INST_RELEASE"
/*
* Return true if root has been bfu'ed. bfu will blow away
* var/sadm/system/admin/INST_RELEASE, so if it's still there, we can
* assume the system has not been bfu'ed.
*/
static int
is_bfu_system(const char *root)
{
static int is_bfu = -1;
char path[PATH_MAX];
struct stat sb;
const char *fcn = "is_bfu_system()";
if (is_bfu != -1) {
BAM_DPRINTF((D_ALREADY_BFU_TEST, fcn, is_bfu ? "" : "NOT"));
return (is_bfu);
}
(void) snprintf(path, sizeof (path), "%s/%s", root, INST_RELEASE);
if (stat(path, &sb) != 0) {
is_bfu = 1;
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
} else {
is_bfu = 0;
BAM_DPRINTF((D_RETURN_FAILURE, fcn));
}
return (is_bfu);
}
#define MENU_URL(root) (is_bfu_system(root) ? \
"http://www.sun.com/msg/SUNOS-8000-CF" : \
"http://www.sun.com/msg/SUNOS-8000-AK")
/*
* Simply allocate a new line and copy in cmd + sep + arg
*/
void
update_line(line_t *linep)
{
size_t size;
const char *fcn = "update_line()";
BAM_DPRINTF((D_UPDATE_LINE_BEFORE, fcn, linep->line));
free(linep->line);
size = strlen(linep->cmd) + strlen(linep->sep) + strlen(linep->arg) + 1;
linep->line = s_calloc(1, size);
(void) snprintf(linep->line, size, "%s%s%s", linep->cmd, linep->sep,
linep->arg);
BAM_DPRINTF((D_UPDATE_LINE_AFTER, fcn, linep->line));
}
static char *
skip_wspace(char *ptr)
{
const char *fcn = "skip_wspace()";
INJECT_ERROR1("SKIP_WSPACE", ptr = NULL);
if (ptr == NULL) {
BAM_DPRINTF((D_SKIP_WSPACE_PTR_NULL, fcn));
return (NULL);
}
BAM_DPRINTF((D_SKIP_WSPACE_ENTRY_PTR, fcn, ptr));
for (; *ptr != '\0'; ptr++) {
if ((*ptr != ' ') && (*ptr != '\t') &&
(*ptr != '\n'))
break;
}
ptr = (*ptr == '\0' ? NULL : ptr);
BAM_DPRINTF((D_SKIP_WSPACE_EXIT_PTR, fcn, ptr ? ptr : "NULL"));
return (ptr);
}
static char *
rskip_bspace(char *bound, char *ptr)
{
const char *fcn = "rskip_bspace()";
assert(bound);
assert(ptr);
assert(bound <= ptr);
assert(*bound != ' ' && *bound != '\t' && *bound != '\n');
BAM_DPRINTF((D_RSKIP_BSPACE_ENTRY, fcn, ptr));
for (; ptr > bound; ptr--) {
if (*ptr == ' ' || *ptr == '\t' || *ptr == '\n')
break;
}
BAM_DPRINTF((D_RSKIP_BSPACE_EXIT, fcn, ptr));
return (ptr);
}
/*
* The parse_kernel_line function examines a menu.lst kernel line. For
* multiboot, this is:
*
* kernel <multiboot path> <flags1> <kernel path> <flags2>
*
* <multiboot path> is either /platform/i86pc/multiboot or /boot/multiboot
*
* <kernel path> may be missing, or may be any full or relative path to unix.
* We check for it by looking for a word ending in "/unix". If it ends
* in "kernel/unix", we upgrade it to a 32-bit entry. If it ends in
* "kernel/amd64/unix", we upgrade it to the default entry. Otherwise,
* it's a custom kernel, and we skip it.
*
* <flags*> are anything that doesn't fit either of the above - these will be
* copied over.
*
* For direct boot, the defaults are
*
* kernel$ <kernel path> <flags>
*
* <kernel path> is one of:
* /platform/i86pc/kernel/$ISADIR/unix
* /boot/platform/i86pc/kernel/$ISADIR/unix
* /platform/i86pc/kernel/unix
* /platform/i86pc/kernel/amd64/unix
* /boot/platform/i86pc/kernel/unix
* /boot/platform/i86pc/kernel/amd64/unix
*
* If <kernel path> is any of the last four, the command may also be "kernel".
*
* <flags> is anything that isn't <kernel path>.
*
* This function is only called to convert a multiboot entry to a dboot entry
*
* For safety, we do one more check: if the kernel path starts with /boot,
* we verify that the new kernel exists before changing it. This is mainly
* done for bfu, as it may cause the failsafe archives to be a different
* boot architecture from the newly bfu'ed system.
*/
static error_t
cvt_kernel_line(line_t *line, const char *osroot, entry_t *entry)
{
char path[PATH_MAX], path_64[PATH_MAX];
char linebuf[PATH_MAX];
char new_arg[PATH_MAX];
struct stat sb, sb_64;
char *old_ptr;
char *unix_ptr;
char *flags1_ptr;
char *flags2_ptr;
const char *fcn = "cvt_kernel_line()";
BAM_DPRINTF((D_FUNC_ENTRY2, fcn, line->line, osroot));
/*
* We only convert multiboot to dboot and nothing else.
*/
if (!(entry->flags & BAM_ENTRY_MULTIBOOT)) {
BAM_DPRINTF((D_NOT_MULTIBOOT_CONVERT, fcn));
return (BAM_SUCCESS);
}
if (entry->flags & BAM_ENTRY_FAILSAFE) {
/*
* We're attempting to change failsafe to dboot.
* In the bfu case, we may not have a dboot failsafe
* kernel i.e. a "unix" under the "/boot" hierarchy.
* If so, just emit a message in verbose mode and
* return success.
*/
BAM_DPRINTF((D_TRYING_FAILSAFE_CVT_TO_DBOOT, fcn));
(void) snprintf(path, PATH_MAX, "%s%s", osroot,
DIRECT_BOOT_FAILSAFE_32);
(void) snprintf(path_64, PATH_MAX, "%s%s", osroot,
DIRECT_BOOT_FAILSAFE_64);
if (stat(path, &sb) != 0 && stat(path_64, &sb_64) != 0) {
if (bam_verbose) {
bam_error(FAILSAFE_MISSING, line->lineNum);
}
BAM_DPRINTF((D_NO_FAILSAFE_UNIX_CONVERT, fcn));
return (BAM_SUCCESS);
}
}
/*
* Make sure we have the correct cmd
*/
free(line->cmd);
line->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]);
BAM_DPRINTF((D_CVT_CMD_KERN_DOLLAR, fcn, line->cmd));
assert(sizeof (linebuf) > strlen(line->arg) + 32);
(void) strlcpy(linebuf, line->arg, sizeof (linebuf));
old_ptr = strpbrk(linebuf, " \t\n");
old_ptr = skip_wspace(old_ptr);
if (old_ptr == NULL) {
/*
* only multiboot and nothing else
* i.e. flags1 = unix = flags2 = NULL
*/
flags1_ptr = unix_ptr = flags2_ptr = NULL;
BAM_DPRINTF((D_FLAGS1_UNIX_FLAGS2_NULL, fcn))
goto create;
}
/*
*
* old_ptr is either at "flags1" or "unix"
*/
if (unix_ptr = strstr(old_ptr, "/unix")) {
/*
* There is a unix.
*/
BAM_DPRINTF((D_UNIX_PRESENT, fcn));
/* See if there's a flags2 past unix */
flags2_ptr = unix_ptr + strlen("/unix");
flags2_ptr = skip_wspace(flags2_ptr);
if (flags2_ptr) {
BAM_DPRINTF((D_FLAGS2_PRESENT, fcn, flags2_ptr));
} else {
BAM_DPRINTF((D_FLAGS2_ABSENT, fcn));
}
/* see if there is a flags1 before unix */
unix_ptr = rskip_bspace(old_ptr, unix_ptr);
if (unix_ptr == old_ptr) {
flags1_ptr = NULL;
BAM_DPRINTF((D_FLAGS1_ABSENT, fcn));
} else {
flags1_ptr = old_ptr;
*unix_ptr = '\0';
unix_ptr++;
BAM_DPRINTF((D_FLAGS1_PRESENT, fcn, flags1_ptr));
}
} else {
/* There is no unix, there is only a bunch of flags */
flags1_ptr = old_ptr;
unix_ptr = flags2_ptr = NULL;
BAM_DPRINTF((D_FLAGS1_ONLY, fcn, flags1_ptr));
}
/*
* With dboot, unix is fixed and is at the beginning. We need to
* migrate flags1 and flags2
*/
create:
if (entry->flags & BAM_ENTRY_FAILSAFE) {
(void) snprintf(new_arg, sizeof (new_arg), "%s",
DIRECT_BOOT_FAILSAFE_KERNEL);
} else {
(void) snprintf(new_arg, sizeof (new_arg), "%s",
DIRECT_BOOT_KERNEL);
}
BAM_DPRINTF((D_CVTED_UNIX, fcn, new_arg));
if (flags1_ptr != NULL) {
(void) strlcat(new_arg, " ", sizeof (new_arg));
(void) strlcat(new_arg, flags1_ptr, sizeof (new_arg));
}
if (flags2_ptr != NULL) {
(void) strlcat(new_arg, " ", sizeof (new_arg));
(void) strlcat(new_arg, flags2_ptr, sizeof (new_arg));
}
BAM_DPRINTF((D_CVTED_UNIX_AND_FLAGS, fcn, new_arg));
free(line->arg);
line->arg = s_strdup(new_arg);
update_line(line);
BAM_DPRINTF((D_CVTED_KERNEL_LINE, fcn, line->line));
return (BAM_SUCCESS);
}
/*
* Similar to above, except this time we're looking at a module line,
* which is quite a bit simpler.
*
* Under multiboot, the archive line is:
*
* module /platform/i86pc/boot_archive
*
* Under directboot, the archive line is:
*
* module$ /platform/i86pc/$ISADIR/boot_archive
*
* which may be specified exactly as either of:
*
* module /platform/i86pc/boot_archive
* module /platform/i86pc/amd64/boot_archive
*
* Under multiboot, the failsafe is:
*
* module /boot/x86.miniroot-safe
*
* Under dboot, the failsafe is:
*
* module$ /boot/$ISADIR/x86.miniroot-safe
*
* which may be specified exactly as either of:
*
* module /boot/x86.miniroot-safe
* module /boot/amd64/x86.miniroot-safe
*/
static error_t
cvt_module_line(line_t *line, entry_t *entry)
{
const char *fcn = "cvt_module_line()";
BAM_DPRINTF((D_FUNC_ENTRY1, fcn, line->line));
/*
* We only convert multiboot to dboot and nothing else
*/
if (!(entry->flags & BAM_ENTRY_MULTIBOOT)) {
BAM_DPRINTF((D_NOT_MULTIBOOT_CONVERT, fcn));
return (BAM_SUCCESS);
}
if (entry->flags & BAM_ENTRY_FAILSAFE) {
if (strcmp(line->arg, FAILSAFE_ARCHIVE) == 0) {
BAM_DPRINTF((D_FAILSAFE_NO_CVT_NEEDED, fcn, line->arg));
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
return (BAM_SUCCESS);
}
} else if (strcmp(line->arg, MULTIBOOT_ARCHIVE) != 0) {
bam_error(UNKNOWN_MODULE_LINE, line->lineNum);
BAM_DPRINTF((D_RETURN_FAILURE, fcn));
return (BAM_MSG);
}
free(line->cmd);
free(line->arg);
line->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]);
line->arg = s_strdup(entry->flags & BAM_ENTRY_FAILSAFE ?
FAILSAFE_ARCHIVE : DIRECT_BOOT_ARCHIVE);
update_line(line);
BAM_DPRINTF((D_CVTED_MODULE, fcn, line->line));
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
return (BAM_SUCCESS);
}
static void
bam_warn_hand_entries(menu_t *mp, char *osroot)
{
int hand_num;
int hand_max;
int *hand_list;
int i;
entry_t *entry;
const char *fcn = "bam_warn_hand_entries()";
if (bam_force) {
/*
* No warning needed, we are automatically converting
* the "hand" entries
*/
BAM_DPRINTF((D_FORCE_HAND_CVT, fcn));
return;
}
hand_num = 0;
hand_max = BAM_ENTRY_NUM;
hand_list = s_calloc(1, hand_max);
for (entry = mp->entries; entry; entry = entry->next) {
if (entry->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU))
continue;
BAM_DPRINTF((D_FOUND_HAND, fcn, entry->entryNum));
if (++hand_num > hand_max) {
hand_max *= 2;
hand_list = s_realloc(hand_list,
hand_max * sizeof (int));
}
hand_list[hand_num - 1] = entry->entryNum;
}
bam_error(HAND_ADDED_ENTRIES, osroot, MENU_URL(osroot));
bam_print_stderr("Entry Number%s: ", (hand_num > 1) ?
"s" : "");
for (i = 0; i < hand_num; i++) {
bam_print_stderr("%d ", hand_list[i]);
}
bam_print_stderr("\n");
}
static entry_t *
find_matching_entry(
entry_t *estart,
char *grubsign,
char *grubroot,
int root_opt)
{
entry_t *entry;
line_t *line;
char opt[10];
const char *fcn = "find_matching_entry()";
assert(grubsign);
assert(root_opt == 0 || root_opt == 1);
(void) snprintf(opt, sizeof (opt), "%d", root_opt);
BAM_DPRINTF((D_FUNC_ENTRY3, fcn, grubsign, grubroot, opt));
for (entry = estart; entry; entry = entry->next) {
if (!(entry->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU)) &&
!bam_force) {
BAM_DPRINTF((D_SKIP_ENTRY, fcn, entry->entryNum));
continue;
}
if (entry->flags & BAM_ENTRY_ROOT) {
for (line = entry->start; line; line = line->next) {
if (line->cmd == NULL || line->arg == NULL) {
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
} else {
BAM_DPRINTF((D_SKIP_NULL, fcn));
continue;
}
}
if (strcmp(line->cmd, menu_cmds[ROOT_CMD])
== 0 && strcmp(line->arg, grubroot) == 0) {
BAM_DPRINTF((D_ROOT_MATCH, fcn,
line->line, grubsign));
return (entry);
}
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
}
}
} else if (entry->flags & BAM_ENTRY_FINDROOT) {
for (line = entry->start; line; line = line->next) {
if (line->cmd == NULL || line->arg == NULL) {
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
} else {
BAM_DPRINTF((D_SKIP_NULL, fcn));
continue;
}
}
if (strcmp(line->cmd, menu_cmds[FINDROOT_CMD])
== 0 && strcmp(line->arg, grubsign) == 0) {
BAM_DPRINTF((D_FINDROOT_MATCH, fcn,
line->line, grubsign));
return (entry);
}
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
}
}
} else if (root_opt) {
/* Neither root nor findroot */
BAM_DPRINTF((D_NO_ROOT_FINDROOT, fcn, entry->entryNum));
return (entry);
}
}
BAM_DPRINTF((D_NO_MATCH, fcn));
return (NULL);
}
/*
* The following is a set of routines that attempt to convert the
* menu entries for the supplied osroot into a format compatible
* with the GRUB installation on osroot.
*
* Each of these conversion routines make no assumptions about
* the current state of the menu entry, it does its best to
* convert the menu entry to the new state. In the process
* we may either upgrade or downgrade.
*
* We don't make any heroic efforts at conversion. It is better
* to be conservative and bail out at the first sign of error. We will
* in such cases, point the user at the knowledge-base article
* so that they can upgrade manually.
*/
static error_t
bam_add_findroot(menu_t *mp, char *grubsign, char *grubroot, int root_opt)
{
entry_t *entry;
line_t *line;
line_t *newlp;
int update_num;
char linebuf[PATH_MAX];
const char *fcn = "bam_add_findroot()";
update_num = 0;
bam_print(CVT_FINDROOT);
entry = mp->entries;
for (; entry = find_matching_entry(entry, grubsign, grubroot, root_opt);
entry = entry->next) {
if (entry->flags & BAM_ENTRY_FINDROOT) {
/* already converted */
BAM_DPRINTF((D_ALREADY_FINDROOT, fcn, entry->entryNum));
continue;
}
for (line = entry->start; line; line = line->next) {
if (line->cmd == NULL || line->arg == NULL) {
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
} else {
BAM_DPRINTF((D_SKIP_NULL, fcn));
continue;
}
}
if (strcmp(line->cmd, menu_cmds[TITLE_CMD]) == 0) {
newlp = s_calloc(1, sizeof (line_t));
newlp->cmd = s_strdup(menu_cmds[FINDROOT_CMD]);
newlp->sep = s_strdup(" ");
newlp->arg = s_strdup(grubsign);
(void) snprintf(linebuf, sizeof (linebuf),
"%s%s%s", newlp->cmd, newlp->sep,
newlp->arg);
newlp->line = s_strdup(linebuf);
bam_add_line(mp, entry, line, newlp);
update_num = 1;
entry->flags &= ~BAM_ENTRY_ROOT;
entry->flags |= BAM_ENTRY_FINDROOT;
BAM_DPRINTF((D_ADDED_FINDROOT, fcn,
newlp->line));
line = newlp;
}
if (strcmp(line->cmd, menu_cmds[ROOT_CMD]) == 0) {
BAM_DPRINTF((D_FREEING_ROOT, fcn, line->line));
unlink_line(mp, line);
line_free(line);
}
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
}
}
}
if (update_num) {
BAM_DPRINTF((D_UPDATED_NUMBERING, fcn));
update_numbering(mp);
}
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
return (BAM_SUCCESS);
}
static error_t
bam_add_hv(menu_t *mp, char *grubsign, char *grubroot, int root_opt)
{
entry_t *entry;
const char *fcn = "bam_add_hv()";
bam_print(CVT_HV);
entry = mp->entries;
for (; entry = find_matching_entry(entry, grubsign, grubroot, root_opt);
entry = entry->next) {
if (entry->flags & BAM_ENTRY_HV) {
BAM_DPRINTF((D_ALREADY_HV, fcn, entry->entryNum));
return (BAM_SUCCESS);
}
}
(void) add_boot_entry(mp, NEW_HV_ENTRY, grubsign, XEN_MENU,
XEN_KERNEL_MODULE_LINE, DIRECT_BOOT_ARCHIVE, NULL);
BAM_DPRINTF((D_ADDED_XVM_ENTRY, fcn));
update_numbering(mp);
BAM_DPRINTF((D_RETURN_SUCCESS, fcn));
return (BAM_SUCCESS);
}
static error_t
bam_add_dboot(
menu_t *mp,
char *osroot,
char *grubsign,
char *grubroot,
int root_opt)
{
int msg = 0;
entry_t *entry;
line_t *line;
error_t ret;
const char *fcn = "bam_add_dboot()";
bam_print(CVT_DBOOT);
entry = mp->entries;
for (; entry = find_matching_entry(entry, grubsign, grubroot, root_opt);
entry = entry->next) {
for (line = entry->start; line; line = line->next) {
if (line->cmd == NULL || line->arg == NULL) {
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
} else {
BAM_DPRINTF((D_SKIP_NULL, fcn));
continue;
}
}
/*
* If we have a kernel$ command, assume it
* is dboot already. If it is not a dboot
* entry, something funny is going on and
* we will leave it alone
*/
if (strcmp(line->cmd, menu_cmds[KERNEL_CMD]) == 0) {
ret = cvt_kernel_line(line, osroot, entry);
INJECT_ERROR1("ADD_DBOOT_KERN_ERR",
ret = BAM_ERROR);
INJECT_ERROR1("ADD_DBOOT_KERN_MSG",
ret = BAM_MSG);
if (ret == BAM_ERROR) {
BAM_DPRINTF((D_CVT_KERNEL_FAIL, fcn));
return (ret);
} else if (ret == BAM_MSG) {
msg = 1;
BAM_DPRINTF((D_CVT_KERNEL_MSG, fcn));
}
}
if (strcmp(line->cmd, menu_cmds[MODULE_CMD]) == 0) {
ret = cvt_module_line(line, entry);
INJECT_ERROR1("ADD_DBOOT_MOD_ERR",
ret = BAM_ERROR);
INJECT_ERROR1("ADD_DBOOT_MOD_MSG",
ret = BAM_MSG);
if (ret == BAM_ERROR) {
BAM_DPRINTF((D_CVT_MODULE_FAIL, fcn));
return (ret);
} else if (ret == BAM_MSG) {
BAM_DPRINTF((D_CVT_MODULE_MSG, fcn));
msg = 1;
}
}
if (line == entry->end) {
BAM_DPRINTF((D_ENTRY_END, fcn));
break;
}
}
}
ret = msg ? BAM_MSG : BAM_SUCCESS;
BAM_DPRINTF((D_RETURN_RET, fcn, ret));
return (ret);
}
/*ARGSUSED*/
error_t
upgrade_menu(menu_t *mp, char *osroot, char *menu_root)
{
char *osdev;
char *grubsign;
char *grubroot;
int ret1;
int ret2;
int ret3;
const char *fcn = "upgrade_menu()";
assert(osroot);
assert(menu_root);
BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root));
/*
* We only support upgrades. Xen may not be present
* on smaller metaclusters so we don't check for that.
*/
if (bam_is_findroot != BAM_FINDROOT_PRESENT ||
bam_direct != BAM_DIRECT_DBOOT) {
bam_error(DOWNGRADE_NOTSUP, osroot);
return (BAM_ERROR);
}
/*
* First get the GRUB signature
*/
osdev = get_special(osroot);
INJECT_ERROR1("UPGRADE_OSDEV", osdev = NULL);
if (osdev == NULL) {
bam_error(CANT_FIND_SPECIAL, osroot);
return (BAM_ERROR);
}
grubsign = get_grubsign(osroot, osdev);
INJECT_ERROR1("UPGRADE_GRUBSIGN", grubsign = NULL);
if (grubsign == NULL) {
free(osdev);
bam_error(CANT_FIND_GRUBSIGN, osroot);
return (BAM_ERROR);
}
/* not fatal if we can't get grubroot */
grubroot = get_grubroot(osroot, osdev, menu_root);
INJECT_ERROR1("UPGRADE_GRUBROOT", grubroot = NULL);
free(osdev);
ret1 = bam_add_findroot(mp, grubsign,
grubroot, root_optional(osroot, menu_root));
INJECT_ERROR1("UPGRADE_ADD_FINDROOT", ret1 = BAM_ERROR);
if (ret1 == BAM_ERROR)
goto abort;
if (bam_is_hv == BAM_HV_PRESENT) {
ret2 = bam_add_hv(mp, grubsign, grubroot,
root_optional(osroot, menu_root));
INJECT_ERROR1("UPGRADE_ADD_HV", ret2 = BAM_ERROR);
if (ret2 == BAM_ERROR)
goto abort;
} else
ret2 = BAM_SUCCESS;
ret3 = bam_add_dboot(mp, osroot, grubsign,
grubroot, root_optional(osroot, menu_root));
INJECT_ERROR1("UPGRADE_ADD_DBOOT", ret3 = BAM_ERROR);
if (ret3 == BAM_ERROR)
goto abort;
if (ret1 == BAM_MSG || ret2 == BAM_MSG || ret3 == BAM_MSG) {
bam_error(CVT_TODO, MENU_URL(osroot));
} else {
bam_warn_hand_entries(mp, osroot);
}
free(grubsign);
BAM_DPRINTF((D_RETURN_RET, fcn, BAM_WRITE));
return (BAM_WRITE);
abort:
free(grubsign);
bam_error(CVT_ABORT, osroot, MENU_URL(osroot));
return (BAM_ERROR);
}