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This commit is contained in:
Michael Brown
2007-07-08 22:01:49 +01:00
parent edd1b173a7
commit b94420a52b
6 changed files with 127 additions and 161 deletions
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92
src/usr/autoboot.c
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@@ -44,56 +44,96 @@ static struct net_device * find_boot_netdev ( void ) {
}
/**
* Boot from a network device
* Boot using filename
*
* @v netdev Network device
* @v filename Boot filename
* @ret rc Return status code
*/
void netboot ( struct net_device *netdev ) {
char filename[256];
static int boot_filename ( const char *filename ) {
struct image *image;
int rc;
/* Open device and display device status */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return;
ifstat ( netdev );
/* Configure device via DHCP */
if ( ( rc = dhcp ( netdev ) ) != 0 )
return;
route();
/* Try to download and boot whatever we are given as a filename */
dhcp_snprintf ( filename, sizeof ( filename ),
find_global_dhcp_option ( DHCP_BOOTFILE_NAME ) );
if ( ! filename[0] ) {
printf ( "No boot filename\n" );
return;
}
printf ( "Booting \"%s\"\n", filename );
image = alloc_image();
if ( ! image ) {
printf ( "Out of memory\n" );
return;
return -ENOMEM;
}
if ( ( rc = imgfetch ( image, filename, 0 ) ) != 0 ) {
printf ( "Could not retrieve %s: %s\n",
filename, strerror ( rc ) );
image_put ( image );
return;
return rc;
}
if ( ( rc = imgload ( image ) ) != 0 ) {
printf ( "Could not load %s: %s\n", image->name,
strerror ( rc ) );
image_put ( image );
return;
return rc;
}
if ( ( rc = imgexec ( image ) ) != 0 ) {
printf ( "Could not execute %s: %s\n", image->name,
strerror ( rc ) );
image_put ( image );
return;
return rc;
}
return 0;
}
/**
* Boot using root path
*
* @v root_path Root path
* @ret rc Return status code
*/
static int boot_root_path ( const char *root_path ) {
int rc;
/* Quick hack */
if ( ( rc = iscsiboot ( root_path ) ) != 0 )
return rc;
return 0;
}
/**
* Boot from a network device
*
* @v netdev Network device
* @ret rc Return status code
*/
int netboot ( struct net_device *netdev ) {
char buf[256];
int rc;
/* Open device and display device status */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return rc;
ifstat ( netdev );
/* Configure device via DHCP */
if ( ( rc = dhcp ( netdev ) ) != 0 )
return rc;
route();
/* Try to download and boot whatever we are given as a filename */
dhcp_snprintf ( buf, sizeof ( buf ),
find_global_dhcp_option ( DHCP_BOOTFILE_NAME ) );
if ( buf[0] ) {
printf ( "Booting from filename \"%s\"\n", buf );
return boot_filename ( buf );
}
/* No filename; try the root path */
dhcp_snprintf ( buf, sizeof ( buf ),
find_global_dhcp_option ( DHCP_ROOT_PATH ) );
if ( buf[0] ) {
printf ( "Booting from root path \"%s\"\n", buf );
return boot_root_path ( buf );
}
printf ( "No filename or root path specified\n" );
return -ENOENT;
}
/**