#include "string.h"
#include "partition.h"
#include "fs.h"
+#include "errors.h"
+#include "debug.h"
extern char bootdevice[1024];
the string passed in parameters is changed since 0 are put in place
of some separators to terminate the various strings
*/
-char *
-parse_device_path(char *of_device, char **file_spec, int *partition)
-{
- char *p, *last;
-
- if (file_spec)
- *file_spec = NULL;
- if (partition)
- *partition = -1;
-
- p = strchr(of_device, ':');
- if (p)
- *p = 0;
- else
- return of_device;
-
- last = ++p;
- while(*p && *p != ',') {
- if (!isdigit (*p)) {
- p = last;
- break;
- }
- ++p;
- }
- if (p != last) {
- *(p++) = 0;
- if (partition)
- *partition = simple_strtol(last, NULL, 10);
- }
- if (*p && file_spec)
- *file_spec = p;
-
- return of_device;
-
-}
int
-validate_fspec( struct boot_fspec_t* spec,
- char* default_device,
- int default_part)
+parse_device_path(char *imagepath, char *defdevice, int defpart,
+ char *deffile, struct boot_fspec_t *result)
{
- if (!spec->file) {
- spec->file = spec->dev;
- spec->dev = NULL;
- }
- if (spec->part == -1)
- spec->part = default_part;
- if (!spec->dev)
- spec->dev = default_device;
- if (!spec->file)
- return FILE_BAD_PATH;
- else if (spec->file[0] == ',')
- spec->file++;
-
- return FILE_ERR_OK;
+ char *ptr;
+ char *ipath = strdup(imagepath);
+ char *defdev = strdup(defdevice);
+
+ result->dev = NULL;
+ result->part = -1;
+ result->file = NULL;
+
+ if (!strstr(defdev, "ethernet") && !strstr(defdev, "enet")) {
+ if ((ptr = strrchr(defdev, ':')) != NULL)
+ *ptr = 0; /* remove trailing : from defdevice if necessary */
+ }
+
+ if (!imagepath)
+ goto punt;
+
+ if ((ptr = strrchr(ipath, ',')) != NULL) {
+ result->file = strdup(ptr+1);
+ /* Trim the filename off */
+ *ptr = 0;
+ }
+
+ if (strstr(ipath, "ethernet") || strstr(ipath, "enet"))
+ if ((ptr = strstr(ipath, "bootp")) != NULL) { /* `n' key booting boots enet:bootp */
+ *ptr = 0;
+ result->dev = strdup(ipath);
+ } else
+ result->dev = strdup(ipath);
+ else if ((ptr = strchr(ipath, ':')) != NULL) {
+ *ptr = 0;
+ result->dev = strdup(ipath);
+ if (*(ptr+1))
+ result->part = simple_strtol(ptr+1, NULL, 10);
+ } else if (strlen(ipath)) {
+ result->file = strdup(ipath);
+ } else {
+ return 0;
+ }
+
+punt:
+ if (!result->dev)
+ result->dev = strdup(defdev);
+
+ if (result->part < 0)
+ result->part = defpart;
+
+ if (!result->file)
+ result->file = strdup(deffile);
+ free(ipath);
+ return 1;
}
+
static int
file_block_open( struct boot_file_t* file,
const char* dev_name,
const char* file_name,
int partition)
{
- struct partition_t* parts;
- struct partition_t* p;
- struct partition_t* found;
+ struct partition_t* parts;
+ struct partition_t* p;
+ struct partition_t* found;
- parts = partitions_lookup(dev_name);
- found = NULL;
+ parts = partitions_lookup(dev_name);
+ found = NULL;
#if DEBUG
- if (parts)
- prom_printf("partitions:\n");
- else
- prom_printf("no partitions found.\n");
-#endif
- for (p = parts; p && !found; p=p->next) {
-#if DEBUG
- prom_printf("number: %02d, start: 0x%08lx, length: 0x%08lx\n",
- p->part_number, p->part_start, p->part_size );
+ if (parts)
+ prom_printf("partitions:\n");
+ else
+ prom_printf("no partitions found.\n");
#endif
- if (partition == -1) {
- file->fs = fs_open( file, dev_name, p, file_name );
- if (file->fs != NULL)
- goto bail;
- }
- if ((partition >= 0) && (partition == p->part_number))
- found = p;
+ for (p = parts; p && !found; p=p->next) {
+ DEBUG_F("number: %02d, start: 0x%08lx, length: 0x%08lx\n",
+ p->part_number, p->part_start, p->part_size );
+ if (partition == -1) {
+ file->fs = fs_open( file, dev_name, p, file_name );
+ if (file->fs != NULL)
+ goto bail;
+ }
+ if ((partition >= 0) && (partition == p->part_number))
+ found = p;
#if DEBUG
- if (found)
- prom_printf(" (match)\n");
+ if (found)
+ prom_printf(" (match)\n");
#endif
- }
+ }
- /* Note: we don't skip when found is NULL since we can, in some
- * cases, let OF figure out a default partition.
- */
- DEBUG_F( "Using OF defaults.. (found = 0x%x)\n", found );
- file->fs = fs_open( file, dev_name, found, file_name );
+ /* Note: we don't skip when found is NULL since we can, in some
+ * cases, let OF figure out a default partition.
+ */
+ DEBUG_F( "Using OF defaults.. (found = %p)\n", found );
+ file->fs = fs_open( file, dev_name, found, file_name );
bail:
- if (parts)
- partitions_free(parts);
+ if (parts)
+ partitions_free(parts);
- return file->fs ? FILE_ERR_OK : FILE_ERR_NOTFOUND;
+ return fserrorno;
}
static int
const char* dev_name,
const char* file_name)
{
- file->fs = fs_of_netboot;
- return fs_of_netboot->open(file, dev_name, NULL, file_name);
+ file->fs = fs_of_netboot;
+ return fs_of_netboot->open(file, dev_name, NULL, file_name);
}
static int
unsigned int size,
void* buffer)
{
- prom_printf("WARNING ! default_read called !\n");
- return FILE_ERR_EOF;
+ prom_printf("WARNING ! default_read called !\n");
+ return FILE_ERR_EOF;
}
static int
default_seek( struct boot_file_t* file,
unsigned int newpos)
{
- prom_printf("WARNING ! default_seek called !\n");
- return FILE_ERR_EOF;
+ prom_printf("WARNING ! default_seek called !\n");
+ return FILE_ERR_EOF;
}
static int
default_close( struct boot_file_t* file)
{
- prom_printf("WARNING ! default_close called !\n");
- return FILE_ERR_OK;
+ prom_printf("WARNING ! default_close called !\n");
+ return FILE_ERR_OK;
}
static struct fs_t fs_default =
{
- "defaults",
- NULL,
- default_read,
- default_seek,
- default_close
+ "defaults",
+ NULL,
+ default_read,
+ default_seek,
+ default_close
};
-int open_file( const struct boot_fspec_t* spec,
- struct boot_file_t* file)
+int open_file(const struct boot_fspec_t* spec, struct boot_file_t* file)
{
- static char temp[1024];
- static char temps[64];
- char *dev_name;
- char *file_name = NULL;
- phandle dev;
- int result;
- int partition;
+ int result;
- memset(file, 0, sizeof(struct boot_file_t*));
- file->fs = &fs_default;
+ memset(file, 0, sizeof(struct boot_file_t*));
+ file->fs = &fs_default;
- /* Lookup the OF device path */
- /* First, see if a device was specified for the kernel
- * if not, we hope that the user wants a kernel on the same
- * drive and partition as yaboot itself */
- if (!spec->dev)
- strcpy(spec->dev, bootdevice);
- strncpy(temp,spec->dev,1024);
- dev_name = parse_device_path(temp, &file_name, &partition);
- if (file_name == NULL)
- file_name = (char *)spec->file;
- if (file_name == NULL) {
- prom_printf("booting without a file name not yet supported !\n");
- return FILE_ERR_NOTFOUND;
- }
- if (partition == -1)
- partition = spec->part;
+ DEBUG_F("dev_path = %s\nfile_name = %s\npartition = %d\n",
+ spec->dev, spec->file, spec->part);
-#if DEBUG
- prom_printf("dev_path = %s\nfile_name = %s\npartition = %d\n",
- dev_name, file_name, partition);
-#endif
- /* Find OF device phandle */
- dev = prom_finddevice(dev_name);
- if (dev == PROM_INVALID_HANDLE) {
- prom_printf("device not found !\n");
- return FILE_ERR_NOTFOUND;
- }
-#if DEBUG
- prom_printf("dev_phandle = %08lx\n", dev);
-#endif
- /* Check the kind of device */
- result = prom_getprop(dev, "device_type", temps, 63);
- if (result == -1) {
- prom_printf("can't get <device_type> for device\n");
- return FILE_ERR_NOTFOUND;
- }
- temps[result] = 0;
- if (!strcmp(temps, "block"))
- file->device_kind = FILE_DEVICE_BLOCK;
- else if (!strcmp(temps, "network"))
- file->device_kind = FILE_DEVICE_NET;
- else {
- prom_printf("Unkown device type <%s>\n", temps);
- return FILE_ERR_NOTFOUND;
- }
+ result = prom_get_devtype(spec->dev);
+ if (result > 0)
+ file->device_kind = result;
+ else
+ return result;
- switch(file->device_kind) {
- case FILE_DEVICE_BLOCK:
-#if DEBUG
- prom_printf("device is a block device\n");
-#endif
- return file_block_open(file, dev_name, file_name, partition);
- case FILE_DEVICE_NET:
-#if DEBUG
- prom_printf("device is a network device\n");
-#endif
- return file_net_open(file, dev_name, file_name);
- }
- return 0;
+ switch(file->device_kind) {
+ case FILE_DEVICE_BLOCK:
+ DEBUG_F("device is a block device\n");
+ return file_block_open(file, spec->dev, spec->file, spec->part);
+ case FILE_DEVICE_NET:
+ DEBUG_F("device is a network device\n");
+ return file_net_open(file, spec->dev, spec->file);
+ }
+ return 0;
}
+
+/*
+ * Local variables:
+ * c-file-style: "K&R"
+ * c-basic-offset: 5
+ * End:
+ */
projects / yaboot.git / blobdiff