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));
}
}
/*
* 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);
}
/*
* 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);
}
/*
* 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;
}
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);
}
/*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 (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);
}
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 (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);
}
/*
* 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(("%s: entered. args: %s %s\n", fcn, line->line, osroot));
/*
* We only convert multiboot to dboot and nothing else.
*/
if (!(entry->flags & BAM_ENTRY_MULTIBOOT)) {
BAM_DPRINTF(("%s: not MULTIBOOT, not converting\n", 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(("%s: trying to convert failsafe to DBOOT\n", 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(_("bootadm -m upgrade run, but the "
"failsafe archives have not been\nupdated. "
"Not updating line %d\n"), line->lineNum);
}
BAM_DPRINTF(("%s: no FAILSAFE unix, not converting\n",
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(("%s: converted kernel cmd to %s\n", 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(("%s: NULL flags1, unix, flags2\n", fcn))
goto create;
}
