/*
- * Yaboot - secondary boot loader for Linux on PowerPC.
+ * Yaboot - secondary boot loader for Linux on PowerPC.
*
* Copyright (C) 2001, 2002 Ethan Benson
*
* Copyright (C) 1999, 2000, 2001 Benjamin Herrenschmidt
- *
+ *
* IBM CHRP support
- *
+ *
* Copyright (C) 2001 Peter Bergner
*
* portions based on poof
- *
+ *
* Copyright (C) 1999 Marius Vollmer
- *
+ *
* portions based on quik
- *
+ *
* Copyright (C) 1996 Paul Mackerras.
- *
+ *
* Because this program is derived from the corresponding file in the
* silo-0.64 distribution, it is also
- *
+ *
* Copyright (C) 1996 Pete A. Zaitcev
* 1996 Maurizio Plaza
* 1996 David S. Miller
/* Locals & globals */
int useconf = 0;
-char bootdevice[1024];
+char bootdevice[BOOTDEVSZ];
char *password = NULL;
struct boot_fspec_t boot;
int _machine = _MACH_Pmac;
/* OF seems to do it, but I'm not very confident */
memset(&__bss_start, 0, &_end - &__bss_start);
-
+
/* Check for quik first stage bootloader (but I don't think we are
* compatible with it anyway, I'll look into backporting to older OF
* versions later
/* Initialize OF interface */
prom_init ((prom_entry) r5);
-
+
/* Allocate some memory for malloc'ator */
malloc_base = prom_claim((void *)MALLOCADDR, MALLOCSIZE, 0);
if (malloc_base == (void *)-1) {
malloc_init(malloc_base, MALLOCSIZE);
DEBUG_F("Malloc buffer allocated at %p (%d bytes)\n",
malloc_base, MALLOCSIZE);
-
+
/* A few useless DEBUG_F's */
DEBUG_F("reloc_offset : %ld (should be 0)\n", reloc_offset());
DEBUG_F("test_bss : %d (should be 0)\n", test_bss);
_machine = _MACH_chrp;
}
}
-
+
DEBUG_F("Running on _machine = %d\n", _machine);
DEBUG_SLEEP;
/* Return to OF */
prom_exit();
-
+
return result;
-
+
}
#ifdef CONFIG_COLOR_TEXT
i++;
}
return -1;
-}
+}
#endif /* CONFIG_COLOR_TEXT */
void print_message_file(char *filename)
{
- char *msg = NULL;
+ char *msg = NULL;
char *p, *endp;
char *defdev = boot.dev;
int defpart = boot.part;
if (p) {
n = simple_strtol(p, &endp, 10);
if (endp != p && *endp == 0)
- defpart = n;
+ defpart = n;
}
strncpy(msgpath, filename, sizeof(msgpath));
* config file. Handle the "\\" (blessed system folder)
*/
static int
-load_config_file(char *device, char* path, int partition)
+load_config_file(struct boot_fspec_t *orig_fspec)
{
char *conf_file = NULL, *p;
struct boot_file_t file;
int sz, opened = 0, result = 0;
char conf_path[512];
- struct boot_fspec_t fspec;
+ struct boot_fspec_t fspec = *orig_fspec;
/* Allocate a buffer for the config file */
conf_file = malloc(CONFIG_FILE_MAX);
/* Build the path to the file */
if (_machine == _MACH_chrp)
strcpy(conf_path, "/etc/");
- else if (path && *path)
- strcpy(conf_path, path);
else
conf_path[0] = 0;
+ if (fspec.file && *fspec.file)
+ strcat(conf_path, fspec.file);
+ else
strcat(conf_path, CONFIG_FILE_NAME);
/* Open it */
- fspec.dev = device;
fspec.file = conf_path;
- fspec.part = partition;
result = open_file(&fspec, &file);
if (result != FILE_ERR_OK) {
prom_printf("%s:%d,", fspec.dev, fspec.part);
prom_interpret(p);
password = cfg_get_strg(0, "password");
-
+
#ifdef CONFIG_COLOR_TEXT
p = cfg_get_strg(0, "fgcolor");
if (p) {
}
if (bgcolor >= 0) {
char temp[64];
- sprintf(temp, "%x to background-color", bgcolor);
- prom_interpret(temp);
+ sprintf(temp, "%x to background-color", bgcolor);
+ prom_interpret(temp);
#if !DEBUG
prom_printf("\xc");
#endif /* !DEBUG */
}
if (fgcolor >= 0) {
char temp[64];
- sprintf(temp, "%x to foreground-color", fgcolor);
- prom_interpret(temp);
+ sprintf(temp, "%x to foreground-color", fgcolor);
+ prom_interpret(temp);
}
#endif /* CONFIG_COLOR_TEXT */
-
+
p = cfg_get_strg(0, "init-message");
if (p)
prom_printf("%s\n", p);
print_message_file(p);
result = 1;
-
+
bail:
if (opened)
file.fs->close(&file);
-
+
if (conf_file)
free(conf_file);
-
+
return result;
}
+/*
+ * "bootp-response" is the property name which is specified in
+ * the recommended practice doc for obp-tftp. However, pmac
+ * provides a "dhcp-response" property and chrp provides a
+ * "bootpreply-packet" property. The latter appears to begin the
+ * bootp packet at offset 0x2a in the property for some reason.
+ */
+
+struct bootp_property_offset {
+ char *name; /* property name */
+ int offset; /* offset into property where bootp packet occurs */
+};
+static const struct bootp_property_offset bootp_response_properties[] = {
+ { .name = "bootp-response", .offset = 0 },
+ { .name = "dhcp-response", .offset = 0 },
+ { .name = "bootpreply-packet", .offset = 0x2a },
+};
+
+struct bootp_packet {
+ u8 op, htype, hlen, hops;
+ u32 xid;
+ u16 secs, flags;
+ u32 ciaddr, yiaddr, siaddr, giaddr;
+ unsigned char chaddr[16];
+ unsigned char sname[64];
+ unsigned char file[128];
+ /* vendor options go here if we need them */
+};
+
+/*
+ * Search for config file by MAC address, then by IP address.
+ * Basically copying pxelinux's algorithm.
+ * http://syslinux.zytor.com/pxe.php#config
+ */
+static int load_my_config_file(struct boot_fspec_t *orig_fspec)
+{
+ void *bootp_response = NULL;
+ char *propname;
+ struct bootp_packet *packet;
+ int i = 0, size, offset = 0, rc = 0;
+ prom_handle chosen;
+ struct boot_fspec_t fspec = *orig_fspec;
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+
+ chosen = prom_finddevice("/chosen");
+ if (chosen < 0) {
+ prom_printf("chosen=%d\n", chosen);
+ return 0;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(bootp_response_properties); i++) {
+ propname = bootp_response_properties[i].name;
+ size = prom_getproplen(chosen, propname);
+ if (size <= 0)
+ continue;
+
+ DEBUG_F("using /chosen/%s\n", propname);
+ offset = bootp_response_properties[i].offset;
+ break;
+ }
+
+ if (size <= 0)
+ goto out;
+
+ if (sizeof(*packet) > size - offset) {
+ prom_printf("Malformed %s property?\n", propname);
+ goto out;
+ }
+
+ bootp_response = malloc(size);
+ if (!bootp_response)
+ goto out;
+
+ if (prom_getprop(chosen, propname, bootp_response, size) < 0)
+ goto out;
+
+ packet = bootp_response + offset;
+
+ /*
+ * First, try to match on mac address with the hardware type
+ * prepended.
+ */
+
+ /* 3 chars per byte in chaddr + 2 chars for htype + \0 */
+ fspec.file = malloc(packet->hlen * 3 + 2 + 1);
+ if (!fspec.file)
+ goto out;
+
+ sprintf(fspec.file, "%02x", packet->htype);
+
+ for (i = 0; i < packet->hlen; i++) {
+ char tmp[4];
+ sprintf(tmp, "-%02x", packet->chaddr[i]);
+ strcat(fspec.file, tmp);
+ }
+
+ rc = load_config_file(&fspec);
+ if (rc)
+ goto out;
+
+
+ /*
+ * Now try to match on IP.
+ */
+ free(fspec.file);
+ fspec.file = malloc(9);
+ sprintf(fspec.file, "%08X", packet->yiaddr);
+
+ while (strlen(fspec.file)) {
+ rc = load_config_file(&fspec);
+ if (rc)
+ goto out;
+ /* Chop one digit off the end, try again */
+ fspec.file[strlen(fspec.file) - 1] = '\0';
+ }
+
+ out:
+ if (rc) /* modify original only on success */
+ orig_fspec->file = fspec.file;
+ else
+ free(fspec.file);
+ free(bootp_response);
+ return rc;
+}
+
void maintabfunc (void)
{
if (useconf) {
if (!strncmp (password, "$1$", 3)) {
if (!check_md5_password(passwdbuff, password))
return;
- }
+ }
else if (!strcmp (password, passwdbuff))
return;
#else /* !MD5 */
params->rd.part = -1;
params->sysmap.part = -1;
defpart = boot.part;
-
+
cmdinit();
if (first) {
check_password ("Restricted command.");
return 1;
}
- return 1;
+ return 1;
}
if (imagename[0] == '$') {
loadinfo_t loadinfo;
void *initrd_more,*initrd_want;
unsigned long initrd_read;
-
+
loadinfo.load_loc = 0;
for (;;) {
initrd_base = 0;
sysmap_base = 0;
sysmap_size = 0;
-
+
if (get_params(¶ms))
return;
if (!params.kernel.file)
continue;
-
+
prom_printf("Please wait, loading kernel...\n");
memset(&file, 0, sizeof(file));
free(params.sysmap.file);
params.sysmap.file=loc;
}
-
+
result = open_file(¶ms.sysmap, &file);
if (result != FILE_ERR_OK) {
prom_printf("%s:%d,", params.sysmap.dev, params.sysmap.part);
DEBUG_F(" done\n");
if (flat_vmlinux) {
- /*
+ /*
* Fill new boot infos (only if booting a vmlinux).
*
* The birec is low on memory, probably inside the malloc pool,
birec->tag = BI_FIRST;
birec->size = sizeof(struct bi_record);
birec = (struct bi_record *)((ulong)birec + birec->size);
-
+
birec->tag = BI_BOOTLOADER_ID;
sprintf( (char *)birec->data, "yaboot");
birec->size = sizeof(struct bi_record) + strlen("yaboot") + 1;
birec = (struct bi_record *)((ulong)birec + birec->size);
-
+
birec->tag = BI_MACHTYPE;
birec->data[0] = _machine;
birec->size = sizeof(struct bi_record) + sizeof(ulong);
if (loadinfo->base == (void *)-1) {
prom_printf("Claim error, can't allocate kernel memory\n");
goto bail;
- }
+ }
DEBUG_F("After ELF parsing, load base: %p, mem_sz: 0x%08lx\n",
loadinfo->base, loadinfo->memsize);
}
free(ph);
-
+
/* Return success at loading the Elf32 kernel */
return 1;
if (loadinfo->base == (void *)-1) {
prom_printf("Claim error, can't allocate kernel memory\n");
goto bail;
- }
+ }
DEBUG_F("After ELF parsing, load base: %p, mem_sz: 0x%08lx\n",
loadinfo->base, loadinfo->memsize);
}
free(ph);
-
+
/* Return success at loading the Elf64 kernel */
return 1;
DEBUG_F("Open screen result: %p\n", scrn);
}
}
-
+
if (scrn == PROM_INVALID_HANDLE) {
prom_printf("No screen device found !/n");
return;
prom_set_color(scrn, i, default_colors[i*3],
default_colors[i*3+1], default_colors[i*3+2]);
}
- prom_printf("\x1b[1;37m\x1b[2;40m");
+ prom_printf("\x1b[1;37m\x1b[2;40m");
#ifdef COLOR_TEST
for (i=0;i<16; i++) {
prom_printf("\x1b[%d;%dm\x1b[1;47m%s \x1b[2;40m %s\n",
ansi_color_table[i].name,
ansi_color_table[i].name);
}
- prom_printf("\x1b[1;37m\x1b[2;40m");
+ prom_printf("\x1b[1;37m\x1b[2;40m");
#endif /* COLOR_TEST */
#if !DEBUG
if (_machine == _MACH_Pmac)
setup_display();
-
- prom_get_chosen("bootpath", bootdevice, sizeof(bootdevice));
+
+ prom_get_chosen("bootpath", bootdevice, BOOTDEVSZ);
DEBUG_F("/chosen/bootpath = %s\n", bootdevice);
if (bootdevice[0] == 0) {
- prom_get_options("boot-device", bootdevice, sizeof(bootdevice));
+ prom_get_options("boot-device", bootdevice, BOOTDEVSZ);
DEBUG_F("boot-device = %s\n", bootdevice);
}
if (bootdevice[0] == 0) {
DEBUG_F("After pmac path kludgeup: dev=%s, part=%d, file=%s\n",
boot.dev, boot.part, boot.file);
- useconf = load_config_file(boot.dev, boot.file, boot.part);
+ /*
+ * If we're doing a netboot, first look for one which matches our
+ * MAC address.
+ */
+ if (prom_get_devtype(boot.dev) == FILE_DEVICE_NET) {
+ prom_printf("Try to netboot\n");
+ useconf = load_my_config_file(&boot);
+ }
+
+ if (!useconf)
+ useconf = load_config_file(&boot);
prom_printf("Welcome to yaboot version " VERSION "\n");
prom_printf("Enter \"help\" to get some basic usage information\n");
return 0;
}
-/*
+/*
* Local variables:
* c-file-style: "k&r"
* c-basic-offset: 5
projects / yaboot.git / blobdiff