/*
* silo.c: Conversions between SCSI and IDE disk names and OpenPROM fully
* qualified paths.
*
* Copyright (C) 1999, 2000 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* Author(s): Jakub Jelinek
*/
#define _GNU_SOURCE
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifndef OPROMSETCUR
#define OPROMSETCUR 0x20004FF0
#define OPROMPCI2NODE 0x20004FF1
#define OPROMPATH2NODE 0x20004FF2
#endif
static int hasaliases;
static char *promdev = "/dev/openprom";
static int promfd;
static char sd_targets[10] = "31204567";
static int p1275 = 0;
static int prom_root_node, prom_current_node;
static int promvers;
static void (*prom_walk_callback)(int node);
static char prom_path[1024];
#define MAX_PROP 128
#define MAX_VAL (4096-128-4)
static char buf[4096];
static char regstr[40];
#define DECL_OP(size) struct openpromio *op = (struct openpromio *)buf; op->oprom_size = (size)
static int
prom_setcur(int node) {
DECL_OP(sizeof(int));
if (node == -1) return 0;
*(int *)op->oprom_array = node;
if (ioctl (promfd, OPROMSETCUR, op) < 0)
return 0;
prom_current_node = *(int *)op->oprom_array;
return *(int *)op->oprom_array;
}
static int
prom_getsibling(int node) {
DECL_OP(sizeof(int));
if (node == -1) return 0;
*(int *)op->oprom_array = node;
if (ioctl (promfd, OPROMNEXT, op) < 0)
return 0;
prom_current_node = *(int *)op->oprom_array;
return *(int *)op->oprom_array;
}
static int
prom_getchild(int node) {
DECL_OP(sizeof(int));
if (!node || node == -1) return 0;
*(int *)op->oprom_array = node;
if (ioctl (promfd, OPROMCHILD, op) < 0)
return 0;
prom_current_node = *(int *)op->oprom_array;
return *(int *)op->oprom_array;
}
static char *
prom_getproperty(char *prop, int *lenp) {
DECL_OP(MAX_VAL);
strcpy (op->oprom_array, prop);
if (ioctl (promfd, OPROMGETPROP, op) < 0)
return 0;
if (lenp) *lenp = op->oprom_size;
return op->oprom_array;
}
static char *
prom_getopt(char *var, int *lenp) {
DECL_OP(MAX_VAL);
strcpy (op->oprom_array, var);
if (ioctl (promfd, OPROMGETOPT, op) < 0)
return 0;
if (lenp) *lenp = op->oprom_size;
return op->oprom_array;
}
static void
prom_setopt(char *var, char *value) {
DECL_OP(MAX_VAL);
strcpy (op->oprom_array, var);
strcpy (op->oprom_array + strlen (var) + 1, value);
ioctl (promfd, OPROMSETOPT, op);
}
static int
prom_getbool(char *prop) {
DECL_OP(0);
*(int *)op->oprom_array = 0;
for (;;) {
op->oprom_size = MAX_PROP;
if (ioctl(promfd, OPROMNXTPROP, op) < 0)
return 0;
if (!op->oprom_size)
return 0;
if (!strcmp (op->oprom_array, prop))
return 1;
}
}
static int
prom_pci2node(int bus, int devfn) {
DECL_OP(2*sizeof(int));
((int *)op->oprom_array)[0] = bus;
((int *)op->oprom_array)[1] = devfn;
if (ioctl (promfd, OPROMPCI2NODE, op) < 0)
return 0;
prom_current_node = *(int *)op->oprom_array;
return *(int *)op->oprom_array;
}
static int
prom_path2node(char *path) {
DECL_OP(MAX_VAL);
strcpy (op->oprom_array, path);
if (ioctl (promfd, OPROMPATH2NODE, op) < 0)
return 0;
prom_current_node = *(int *)op->oprom_array;
return *(int *)op->oprom_array;
}
#define PW_TYPE_SBUS 1
#define PW_TYPE_PCI 2
#define PW_TYPE_EBUS 3
static void
prom_walk(char *path, int parent, int node, int type) {
int nextnode;
int len, ntype = type;
char *prop;
prop = prom_getproperty("name", &len);
if (prop && len > 0) {
if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)
ntype = PW_TYPE_SBUS;
else if (!strcmp(prop, "ebus") && type == PW_TYPE_PCI)
ntype = PW_TYPE_EBUS;
else if (!strcmp(prop, "pci") && !type)
ntype = PW_TYPE_PCI;
}
*path = '/';
strcpy (path + 1, prop);
prop = prom_getproperty("reg", &len);
if (prop && len >= 4) {
unsigned int *reg = (unsigned int *)prop;
int cnt = 0;
if (!p1275 || (type == PW_TYPE_SBUS))
sprintf (regstr, "@%x,%x", reg[0], reg[1]);
else if (type == PW_TYPE_PCI) {
if ((reg[0] >> 8) & 7)
sprintf (regstr, "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7);
else
sprintf (regstr, "@%x", (reg[0] >> 11) & 0x1f);
} else if (len == 4)
sprintf (regstr, "@%x", reg[0]);
else {
unsigned int regs[2];
/* Things get more complicated on UPA. If upa-portid exists,
then address is @upa-portid,second-int-in-reg, otherwise
it is @first-int-in-reg/16,second-int-in-reg (well, probably
upa-portid always exists, but just to be safe). */
memcpy (regs, reg, sizeof(regs));
prop = prom_getproperty("upa-portid", &len);
if (prop && len == 4) {
reg = (unsigned int *)prop;
sprintf (regstr, "@%x,%x", reg[0], regs[1]);
} else
sprintf (regstr, "@%x,%x", regs[0] >> 4, regs[1]);
}
for (nextnode = prom_getchild(parent); nextnode; nextnode = prom_getsibling(nextnode)) {
prop = prom_getproperty("name", &len);
if (prop && len > 0 && !strcmp (path + 1, prop))
cnt++;
}
if (cnt > 1)
strcat (path, regstr);
}
prom_walk_callback(node);
nextnode = prom_getchild(node);
if (nextnode)
prom_walk(strchr (path, 0), node, nextnode, ntype);
nextnode = prom_getsibling(node);
if (nextnode)
prom_walk(path, parent, nextnode, type);
}
static int
prom_init(int mode) {
struct utsname u;
promfd = open(promdev, mode);
if (promfd == -1)
return -1;
prom_root_node = prom_getsibling(0);
if (!prom_root_node)
return -1;
if (!uname (&u) && !strcmp (u.machine, "sparc64"))
p1275 = 1;
return 0;
}
#define SDSK_TYPE_IDE 1
#define SDSK_TYPE_SD 2
#define SDSK_TYPE_PLN 3
#define SDSK_TYPE_FC 4
static struct sdsk_disk {
unsigned int prom_node;
unsigned int type, host, hi, mid, lo;
unsigned char *prom_name;
} *hd = NULL, *sd = NULL;
static int hdlen, sdlen;
static void
scan_walk_callback(int node) {
int nextnode;
char *prop;
int len, disk;
static int v0ctrl = 0;
for (disk = 0; disk < hdlen + sdlen; disk++) {
if (hd[disk].prom_node == node) {
switch (hd[disk].type) {
case SDSK_TYPE_IDE:
for (nextnode = prom_getchild(node); nextnode; nextnode = prom_getsibling(nextnode)) {
prop = prom_getproperty("name", &len);
if (prop && len > 0 && (!strcmp (prop, "ata") || !strcmp (prop, "disk")))
break;
}
if (!nextnode)
continue;
if (prop[0] == 'a')
sprintf (prop, "/ata@%x,0/cmdk@%x,0", hd[disk].hi, hd[disk].lo);
else
sprintf (prop, "/disk@%x,0", hd[disk].hi * 2 + hd[disk].lo);
break;
case SDSK_TYPE_SD:
for (nextnode = prom_getchild(node); nextnode; nextnode = prom_getsibling(nextnode)) {
prop = prom_getproperty("compatible", &len);
if (prop && len > 0 && !strcmp (prop, "sd"))
break;
prop = prom_getproperty("name", &len);
if (prop && len > 0 && (!strcmp (prop, "sd") || !strcmp (prop, "disk")))
break;
}
if (!nextnode || hd[disk].hi)
continue;
if (promvers) {
char name[1024];
prop = prom_getproperty("name", &len);
if (prop && len > 0)
strcpy (name, prop);
else
strcpy (name, "sd");
if (!prop)
prop = ((struct openpromio *)buf)->oprom_array;
sprintf (prop, "/%s@%x,%x", name, hd[disk].mid, hd[disk].lo);
} else {
int i;
for (i = 0; sd_targets[i]; i++)
if (sd_targets[i] == '0' + hd[disk].mid)
break;
if (!sd_targets[i])
i = hd[disk].mid;
sprintf (prop, "sd(%d,%d,", v0ctrl, i);
}
break;
case SDSK_TYPE_PLN:
prop = ((struct openpromio *)buf)->oprom_array;
sprintf (prop, "/SUNW,pln@%x,%x/SUNW,ssd@%x,%x",
hd[disk].lo & 0xf0000000, hd[disk].lo & 0xffffff,
hd[disk].hi, hd[disk].mid);
break;
case SDSK_TYPE_FC:
prop = ((struct openpromio *)buf)->oprom_array;
sprintf (prop, "/sf@0,0/ssd@w%08x%08x,%x", hd[disk].hi, hd[disk].mid, hd[disk].lo);
break;
default:
continue;
}
hd[disk].prom_name = malloc (strlen (prom_path) + strlen(prop) + 3);
if (!hd[disk].prom_name)
continue;
if (promvers)
strcpy (hd[disk].prom_name, prom_path);
else
hd[disk].prom_name[0] = '\0';
strcat (hd[disk].prom_name, prop);
}
}
v0ctrl++;
}
static int
scan_ide(void) {
DIR * dir;
char path[80];
char buffer[512];
int fd, i, disk;
struct dirent * ent;
int pci_bus, pci_devfn;
if (access("/proc/ide", R_OK)) return 0;
if (!(dir = opendir("/proc/ide"))) {
return 1;
}
while ((ent = readdir(dir))) {
if (ent->d_name[0] == 'h' && ent->d_name[1] == 'd' &&
ent->d_name[2] >= 'a' && ent->d_name[2] <= 'z' &&
ent->d_name[3] == '\0') {
disk = ent->d_name[2] - 'a';
if (disk >= hdlen) {
hd = (struct sdsk_disk *)realloc(hd, ((disk&~3)+4)*sizeof(struct sdsk_disk));
memset (hd + hdlen, 0, ((disk&~3)+4-hdlen)*sizeof(struct sdsk_disk));
hdlen = (disk&~3)+4;
}
for (i = (disk & ~3); i <= (disk | 3); i++) {
if (hd[i].type)
break;
}
if (i > (disk | 3)) {
sprintf(path, "/proc/ide/%s", ent->d_name);
if (readlink(path, buffer, 512) < 5)
continue;
if (strncmp(buffer, "ide", 3) ||
!isdigit(buffer[3]) ||
buffer[4] != '/')
continue;
buffer[4] = 0;
sprintf(path, "/proc/ide/%s/config", buffer);
if ((fd = open(path, O_RDONLY)) < 0)
continue;
i = read(fd, buffer, 50);
close(fd);
if (i < 50) continue;
if (sscanf (buffer, "pci bus %x device %x ",
&pci_bus, &pci_devfn) != 2)
continue;
hd[disk].prom_node = prom_pci2node (pci_bus, pci_devfn);
} else
hd[disk].prom_node = hd[i].prom_node;
hd[disk].type = SDSK_TYPE_IDE;
hd[disk].hi = (disk & 2) >> 1;
hd[disk].lo = (disk & 1);
}
}
closedir(dir);
return 0;
}
static int
scan_scsi(void) {
FILE *f;
DIR * dir, *dirhba;
struct dirent * ent, *enthba;
struct stat st;
char * p, * q;
char buf[512];
char path[128];
int disk = 0;
int host, channel, id, lun;
int prom_node, pci_bus, pci_devfn;
if (access("/proc/scsi/scsi", R_OK)) {
return 0;
}
f = fopen("/proc/scsi/scsi", "r");
if (f == NULL) return 1;
if (fgets(buf, sizeof(buf), f) == NULL) {
fclose(f);
return 1;
}
if (!strcmp(buf, "Attached devices: none\n")) {
fclose(f);
return 0;
}
while (fgets(buf, sizeof(buf), f) != NULL) {
if (sscanf(buf, "Host: scsi%d Channel: %d Id: %d Lun: %d\n",
&host, &channel, &id, &lun) != 4)
break;
if (fgets(buf, sizeof(buf), f) == NULL)
break;
if (strncmp(buf, " Vendor:", 9))
break;
if (fgets(buf, sizeof(buf), f) == NULL)
break;
if (strncmp(buf, " Type: ", 10))
break;
if (!strncmp(buf+10, "Direct-Access", 13)) {
if (disk >= sdlen) {
hd = (struct sdsk_disk *)
realloc(hd, (hdlen+(disk&~3)+4)*sizeof(struct sdsk_disk));
sd = hd + hdlen;
memset (sd + sdlen, 0,
((disk&~3)+4-sdlen)*sizeof(struct sdsk_disk));
sdlen = (disk&~3)+4;
}
sd[disk].type = SDSK_TYPE_SD;
sd[disk].host = host;
sd[disk].hi = channel;
sd[disk].mid = id;
sd[disk].lo = lun;
disk++;
}
}
fclose (f);
if (!(dir = opendir("/proc/scsi"))) {
if (!hdlen && hd) {
free(hd);
hd = NULL;
}
sd = NULL;
sdlen = 0;
return 1;
}
while ((ent = readdir(dir))) {
if (!strcmp (ent->d_name, "scsi") || ent->d_name[0] == '.')
continue;
sprintf (path, "/proc/scsi/%s", ent->d_name);
if (stat (path, &st) < 0 || !S_ISDIR (st.st_mode))
continue;
if (!(dirhba = opendir(path)))
continue;
while ((enthba = readdir(dirhba))) {
if (enthba->d_name[0] == '.')
continue;
host = atoi(enthba->d_name);
sprintf (path, "/proc/scsi/%s/%s", ent->d_name, enthba->d_name);
f = fopen (path, "r");
if (f == NULL) continue;
if (!strcmp (ent->d_name, "esp") ||
!strcmp (ent->d_name, "qlogicpti") ||
!strcmp (ent->d_name, "fcal"))
p = "PROM node";
else if (!strcmp (ent->d_name, "pluto"))
p = "serial ";
else
p = "PCI bus";
while (fgets (buf, sizeof(buf), f) != NULL) {
q = strstr (buf, p);
if (q == NULL) continue;
prom_node = 0;
switch (p[1]) {
case 'R':
if (sscanf (q, "PROM node %x", &prom_node) == 1)
q = NULL;
break;
case 'e':
if (sscanf (q, "serial 000000%x %*dx%*d on soc%*d port %x PROM node %x",
&id, &lun, &prom_node) == 3 &&
lun >= 10 && lun <= 11) {
q = NULL;
}
break;
case 'C':
if (sscanf (q, "PCI bus %x device %x", &pci_bus, &pci_devfn) == 2) {
q = NULL;
prom_node = prom_pci2node (pci_bus, pci_devfn);
}
break;
}
if (q == NULL) {
for (disk = 0; disk < sdlen; disk++)
if (sd[disk].host == host && sd[disk].type) {
sd[disk].prom_node = prom_node;
if (p[1] == 'e') {
sd[disk].type = SDSK_TYPE_PLN;
sd[disk].lo = (lun << 28) | id;
} else if (!strcmp (ent->d_name, "fcal"))
sd[disk].type = SDSK_TYPE_FC;
}
}
}
if (!strcmp (ent->d_name, "fcal")) {
while (fgets (buf, sizeof(buf), f) != NULL) {
unsigned long long ll;
if (sscanf (buf, " [AL-PA: %*x, Id: %d, Port WWN: %Lx, Node WWN: ", &id, &ll) == 2) {
for (disk = 0; disk < sdlen; disk++)
if (sd[disk].host == host && sd[disk].mid == id) {
sd[disk].hi = ll >> 32;
sd[disk].mid = ll;
}
}
}
}
fclose(f);
}
closedir(dirhba);
}
closedir(dir);
return 0;
}
static int get_prom_ver(void)
{
FILE *f = fopen ("/proc/cpuinfo","r");
int ver = 0;
char buffer[1024];
char *p;
if (f) {
while (fgets (buffer, 1024, f)) {
if (!strncmp (buffer, "promlib", 7)) {
p = strstr (buffer, "Version ");
if (p) {
p += 8;
if (*p == '0' || (*p >= '2' && *p <= '3')) {
ver = *p - '0';
}
}
break;
}
}
fclose(f);
}
if (!ver) {
int len;
p = prom_getopt("sd-targets", &len);
if (p && len > 0 && len <= 8)
strcpy(sd_targets, p);
}
return ver;
}
static void check_aliases(void) {
int nextnode, len;
char *prop;
hasaliases = 0;
for (nextnode = prom_getchild(prom_root_node); nextnode; nextnode = prom_getsibling(nextnode)) {
prop = prom_getproperty("name", &len);
if (prop && len > 0 && !strcmp (prop, "aliases"))
hasaliases = 1;
}
}
char *prom_root_name = NULL;
static void get_root_name(void) {
int len;
char *prop;
prom_getsibling(0);
prop = prom_getproperty("name", &len);
if (prop && len > 0)
prom_root_name = strdup(prop);
}
int init_sbusdisk(void) {
if (prom_init(O_RDONLY))
return -1;
promvers = get_prom_ver();
check_aliases();
get_root_name();
scan_ide();
scan_scsi();
prom_walk_callback = scan_walk_callback;
prom_walk(prom_path, prom_root_node, prom_getchild (prom_root_node), 0);
close(promfd);
return 0;
}
void set_prom_vars(char *linuxAlias, char *bootDevice) {
int len;
int aliasDone = 0;
if (prom_init(O_RDWR))
return;
if (linuxAlias && hasaliases) {
char *use_nvramrc;
char nvramrc[2048];
char *p, *q, *r, *s;
int enabled = -1;
int count;
use_nvramrc = prom_getopt ("use-nvramrc?", &len);
if (len > 0) {
if (!strcasecmp (use_nvramrc, "false"))
enabled = 0;
else if (!strcasecmp (use_nvramrc, "true"))
enabled = 1;
}
if (enabled != -1) {
p = prom_getopt ("nvramrc", &len);
if (p) {
memcpy (nvramrc, p, len);
nvramrc [len] = 0;
q = nvramrc;
for (;;) {
/* If there is already `devalias linux /some/ugly/prom/path'
make sure we fully understand that and remove it. */
if (!strncmp (q, "devalias", 8) && (q[8] == ' ' || q[8] == '\t')) {
for (r = q + 9; *r == ' ' || *r == '\t'; r++);
if (!strncmp (r, "linux", 5)) {
for (s = r + 5; *s && *s != ' ' && *s != '\t'; s++);
if (!*s) break;
if (s == r + 5 ||
(r[5] == '#' && r[6] >= '0' && r[6] <= '9' &&
(s == r + 7 ||
(r[7] >= '0' && r[7] <= '9' && s == r + 8)))) {
for (r = s + 1; *r == ' ' || *r == '\t'; r++);
for (; *r && *r != ' ' && *r != '\t' && *r != '\n'; r++);
for (; *r == ' ' || *r == '\t'; r++);
if (*r == '\n') {
r++;
memmove (q, r, strlen(r) + 1);
continue;
}
}
}
}
q = strchr (q, '\n');
if (!q) break;
q++;
}
len = strlen (nvramrc);
if (len && nvramrc [len-1] != '\n')
nvramrc [len++] = '\n';
p = nvramrc + len;
p = stpcpy (p, "devalias linux ");
r = linuxAlias;
q = strchr (r, ';');
count = 1;
while (q) {
memcpy (p, r, q - r);
p += q - r;
sprintf (p, "\ndevalias linux#%d ", count++);
p = strchr (p, 0);
r = q + 1;
q = strchr (r, ';');
}
p = stpcpy (p, r);
*p++ = '\n';
*p = 0;
prom_setopt ("nvramrc", nvramrc);
if (!enabled)
prom_setopt ("use-nvramrc?", "true");
aliasDone = 1;
}
}
}
if (bootDevice) {
char *p;
if (aliasDone)
bootDevice = "linux";
p = prom_getopt ("boot-device", &len);
if (p) {
prom_setopt ("boot-device", bootDevice);
prom_setopt ("boot-file", "");
} else {
p = prom_getopt ("boot-from", &len);
if (p)
prom_setopt ("boot-from", bootDevice);
}
}
close(promfd);
}
#ifdef STANDALONE_SILO
int main(void) {
int i;
init_sbusdisk();
set_prom_vars ("/sbus@1f,0/espdma/esp/sd@1,0:c;/sbus@1f,0/espdma/esp/sd@1,0:g;/sbus@1f,0/espdma/esp/sd@1,0:h", "linux");
printf ("prom root name `%s'\n", prom_root_name);
for (i = 0; i < hdlen; i++) {
if (hd[i].type)
printf ("hd%c %x %d %d %d\n", i + 'a', hd[i].prom_node,
hd[i].hi, hd[i].mid, hd[i].lo);
if (hd[i].prom_name) printf ("%s\n", hd[i].prom_name);
}
for (i = 0; i < sdlen; i++) {
if (sd[i].type) {
if (i < 26)
printf ("sd%c %x %d %d %d\n", i + 'a', sd[i].prom_node,
sd[i].hi, sd[i].mid, sd[i].lo);
else
printf ("sd%c%c %x %d %d %d\n", (i / 26) + 'a' - 1, (i % 26) + 'a', sd[i].prom_node,
sd[i].hi, sd[i].mid, sd[i].lo);
}
if (sd[i].prom_name) printf ("%s\n", sd[i].prom_name);
}
exit(0);
}
#else
#include
static PyObject *disk2PromPath (PyObject *, PyObject *);
static PyObject *zeroBasedPart (PyObject *, PyObject *);
static PyObject *hasAliases (void);
static PyObject *promRootName (void);
static PyObject *setPromVars (PyObject *, PyObject *);
static PyMethodDef _siloMethods[] = {
{ "disk2PromPath", disk2PromPath, 1 },
{ "hasAliases", hasAliases, 1 },
{ "promRootName", promRootName, 1 },
{ "zeroBasedPart", zeroBasedPart, 1 },
{ "setPromVars", setPromVars, 1 },
{ NULL, NULL }
};
void
init_silo ()
{
PyObject *m;
m = Py_InitModule ("_silo", _siloMethods);
if (init_sbusdisk ())
Py_FatalError ("unable to open /dev/openprom");
if (PyErr_Occurred ())
Py_FatalError ("can't initialize module _silo");
}
static PyObject *
disk2PromPath (PyObject *self, PyObject *args)
{
unsigned char *disk, prompath[1024];
int diskno = -1, part;
if (!PyArg_ParseTuple (args, "s", &disk))
return NULL;
if (disk[0] == 'h' && disk[1] == 'd' && disk[2] >= 'a' && disk[2] <= 'z') {
diskno = disk[2] - 'a';
disk += 3;
} else if (disk[0] == 's' && disk[1] == 'd' && disk[2] >= 'a' && disk[2] <= 'z') {
if (disk[3] >= 'a' && disk[3] <= 'z') {
diskno = (disk[2] - 'a' + 1) * 26 + (disk[3] - 'a');
disk += 4;
} else {
diskno = disk[2] - 'a';
disk += 3;
}
if (diskno >= 128)
diskno = -1;
else
diskno += hdlen;
}
if (diskno == -1)
part = -1;
else if (!disk[0])
part = 3;
else {
part = atoi (disk);
if (part <= 0 || part > 8) part = -1;
}
if (diskno < 0 || part == -1 ||
diskno >= hdlen + sdlen || !hd[diskno].prom_name) {
Py_INCREF(Py_None);
return Py_None;
}
if (!promvers)
sprintf (prompath, "%s%d)", hd[diskno].prom_name, part ? part - 1 : 2);
else {
if (part)
sprintf (prompath, "%s:%c", hd[diskno].prom_name, part + 'a' - 1);
else
strcpy (prompath, hd[diskno].prom_name);
}
return Py_BuildValue ("s", prompath);
}
#include "../balkan/balkan.h"
#include "../balkan/sun.h"
static PyObject *
zeroBasedPart (PyObject *self, PyObject *args)
{
unsigned char *disk;
int part = 3, fd, i;
struct partitionTable table;
if (!PyArg_ParseTuple (args, "s", &disk))
return NULL;
fd = open(disk, O_RDONLY);
if (fd < 0) return NULL;
if (sunpReadTable(fd, &table)) {
close(fd);
return NULL;
}
if (table.parts[2].type == -1 || table.parts[2].startSector) {
for (i = 0; i < 8; i++) {
if (table.parts[i].type == -1) continue;
if (!table.parts[i].startSector) {
part = i + 1;
break;
}
}
}
close(fd);
return Py_BuildValue ("i", part);
}
static PyObject *
hasAliases (void)
{
return Py_BuildValue ("i", hasaliases);
}
static PyObject *
promRootName (void)
{
return Py_BuildValue ("s", prom_root_name ? prom_root_name : "");
}
static PyObject *
setPromVars (PyObject *self, PyObject *args)
{
char *linuxAlias, *bootDevice;
if (!PyArg_ParseTuple (args, "ss", &linuxAlias, &bootDevice))
return NULL;
if (linuxAlias && !*linuxAlias) linuxAlias = NULL;
if (bootDevice && !*bootDevice) bootDevice = NULL;
set_prom_vars (linuxAlias, bootDevice);
Py_INCREF(Py_None);
return Py_None;
}
#endif