/*
* fs_of.c - an implementation for OpenFirmware supported filesystems
*
- * Copyright (C) 2001 Ethan Benson
+ * Copyright (C) 2001, 2002 Ethan Benson
*
* Copyright (C) 1999 Benjamin Herrenschmidt
*
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/*
+/*
* BrokenFirmware cannot "read" from the network. We use tftp "load"
* method for network boot for now, we may provide our own NFS
* implementation in a later version. That means that we allocate a
#include "prom.h"
#include "string.h"
#include "partition.h"
+#include "fdisk-part.h"
#include "fs.h"
#include "errors.h"
#include "debug.h"
-#define LOAD_BUFFER_POS 0x600000
-#define LOAD_BUFFER_SIZE 0x400000
+#define LOAD_BUFFER_SIZE 0x1800000
-static int of_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name);
+static int of_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec);
static int of_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_seek(struct boot_file_t* file, unsigned int newpos);
static int of_close(struct boot_file_t* file);
+static int of_ino_size(struct boot_file_t* file, unsigned int *size);
-static int of_net_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name);
+static int of_net_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec);
static int of_net_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_net_seek(struct boot_file_t* file, unsigned int newpos);
+static int of_net_ino_size(struct boot_file_t* file, unsigned int *size);
struct fs_t of_filesystem =
of_open,
of_read,
of_seek,
- of_close
+ of_close,
+ of_ino_size,
};
struct fs_t of_net_filesystem =
of_net_open,
of_net_read,
of_net_seek,
- of_close
+ of_close,
+ of_net_ino_size,
};
static int
-of_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name)
+of_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec)
{
static char buffer[1024];
char *filename;
char *p;
-
+
DEBUG_ENTER;
DEBUG_OPEN;
- strncpy(buffer, dev_name, 768);
+ strncpy(buffer, fspec->dev, 768);
strcat(buffer, ":");
if (part) {
+ if (part->sys_ind == LINUX_RAID || part->sys_ind == LINUX_NATIVE) {
+ DEBUG_F("skipping because partition is tagged %08x\n",
+ part->sys_ind );
+ DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
+ return FILE_ERR_BAD_FSYS;
+ }
char pn[3];
sprintf(pn, "%02d", part->part_number);
strcat(buffer, pn);
}
- if (file_name && strlen(file_name)) {
+ if (fspec->file && strlen(fspec->file)) {
if (part)
strcat(buffer, ",");
- filename = strdup(file_name);
+ filename = strdup(fspec->file);
for (p = filename; *p; p++)
- if (*p == '/')
+ if (*p == '/')
*p = '\\';
strcat(buffer, filename);
free(filename);
file->pos = 0;
file->buffer = NULL;
+ file->devspec_cache = strdup(buffer);
+
if ((file->of_device == PROM_INVALID_HANDLE) || (file->of_device == 0))
{
DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
return FILE_ERR_BAD_FSYS;
}
-
+
DEBUG_LEAVE(FILE_ERR_OK);
return FILE_ERR_OK;
}
static int
-of_net_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name)
+of_net_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec)
{
static char buffer[1024];
- char *filename;
+ char *filename = NULL;
char *p;
+ int new_tftp;
+ prom_handle root;
+ ihandle prom_net;
DEBUG_ENTER;
DEBUG_OPEN;
- strncpy(buffer, dev_name, 768);
- if (file_name && strlen(file_name)) {
- strcat(buffer, ",");
- filename = strdup(file_name);
+ if (fspec->file && strlen(fspec->file)) {
+ filename = strdup(fspec->file);
for (p = filename; *p; p++)
- if (*p == '/')
+ if (*p == '/')
*p = '\\';
- strcat(buffer, filename);
- free(filename);
}
-
+
+ DEBUG_F("siaddr <%s>; filename <%s>; ciaddr <%s>; giaddr <%s>;"
+ " ipv6 <%d>; vtag <%s>\n",
+ fspec->siaddr, filename, fspec->ciaddr, fspec->giaddr,
+ fspec->is_ipv6, fspec->vtag);
+
+ strncpy(buffer, fspec->dev, 768);
+ /* If we didn't get a ':' include one */
+ if (fspec->dev[strlen(fspec->dev)-1] != ':')
+ strcat(buffer, ":");
+
+ /* If /ibm,fw-net-compatibility exists the we have a "new skool" tftp.
+ * This means that siaddr is the tftp server and that we can add
+ * {tftp,bootp}_retrys, subnet mask and tftp block size to the load
+ * method */
+ new_tftp = 0;
+ root = prom_finddevice("/");
+ if (prom_getprop(root, "ibm,fw-net-compatibility", &prom_net, sizeof(ihandle)) > 0)
+ new_tftp = 1;
+ DEBUG_F("Using %s tftp style\n", (new_tftp? "new": "old"));
+
+ if (new_tftp) {
+ if (fspec->is_ipv6)
+ strcat(buffer, "ipv6,");
+
+ if (fspec->vtag) {
+ strcat(buffer, fspec->vtag);
+ strcat(buffer, ",");
+ }
+ strcat(buffer, fspec->siaddr);
+ strcat(buffer, ",");
+
+ if (fspec->is_ipv6 && (strstr(filename, "filename=") == NULL))
+ strcat(buffer, "filename=");
+
+ strcat(buffer, filename);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->ciaddr);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->giaddr);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->bootp_retries);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->tftp_retries);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->subnetmask);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->addl_params);
+ } else {
+ strcat(buffer, ",");
+ strcat(buffer, filename);
+ }
+
DEBUG_F("Opening: \"%s\"\n", buffer);
file->of_device = prom_open(buffer);
DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
return FILE_ERR_BAD_FSYS;
}
-
- file->buffer = prom_claim((void *)LOAD_BUFFER_POS, LOAD_BUFFER_SIZE, 0);
+
+
+ file->buffer = prom_claim_chunk_top(LOAD_BUFFER_SIZE, 0);
if (file->buffer == (void *)-1) {
prom_printf("Can't claim memory for TFTP download\n");
prom_close(file->of_device);
DEBUG_F("TFP...\n");
file->len = prom_loadmethod(file->of_device, file->buffer);
-
+
DEBUG_F("result: %Ld\n", file->len);
-
+
DEBUG_LEAVE(FILE_ERR_OK);
return FILE_ERR_OK;
}
of_read(struct boot_file_t* file, unsigned int size, void* buffer)
{
unsigned int count;
-
+
count = prom_read(file->of_device, buffer, size);
file->pos += count;
return count;
of_net_read(struct boot_file_t* file, unsigned int size, void* buffer)
{
unsigned int count, av;
-
+
av = file->len - file->pos;
- count = size > av ? av : size;
+ count = size > av ? av : size;
memcpy(buffer, file->buffer + file->pos, count);
file->pos += count;
return count;
file->pos = newpos;
return FILE_ERR_OK;
}
-
+
return FILE_CANT_SEEK;
}
prom_close(file->of_device);
DEBUG_F("of_close called\n");
- DEBUG_LEAVE(0);
+ DEBUG_LEAVE(0);
return 0;
}
-/*
+static int
+of_ino_size(struct boot_file_t* file, unsigned int *size)
+{
+ static char buffer[1<<20];
+ int read_count = 0;
+
+ if (file->len == 0) {
+ DEBUG_F("Estimating size of: %p\n", file->of_device);
+ while (prom_read(file->of_device, (void *)&buffer, sizeof(buffer))
+ != 0) {
+ read_count++;
+ DEBUG_F("read_count == %d\n", read_count);
+ }
+ file->pos = 0;
+ file->len = read_count * sizeof(buffer);
+ /* sigh:
+ * prom_seek(file->of_device, file->pos);
+ * doen't work */
+ prom_close(file->of_device);
+ DEBUG_F("Re-Opening: \"%s\"\n", file->devspec_cache);
+ file->of_device = prom_open(file->devspec_cache);
+ DEBUG_F("file->of_device = %p\n", file->of_device);
+ if (file->of_device == 0) {
+ file->len = 0;
+ return FILE_IOERR;
+ }
+ }
+
+ DEBUG_F("Estimated size is: %Lu(%d)\n", (unsigned long long)file->len,
+ read_count);
+ *size = file->len;
+ return FILE_ERR_OK;
+}
+
+static int
+of_net_ino_size(struct boot_file_t* file, unsigned int *size)
+{
+ *size = file->len;
+ return FILE_ERR_OK;
+}
+
+/*
* Local variables:
* c-file-style: "k&r"
* c-basic-offset: 5
projects / yaboot.git / blobdiff