diff options
Diffstat (limited to 'src/interface')
| -rw-r--r-- | src/interface/efi/efi_autoexec.c | 489 | ||||
| -rw-r--r-- | src/interface/efi/efi_driver.c | 117 | ||||
| -rw-r--r-- | src/interface/efi/efi_local.c | 294 | ||||
| -rw-r--r-- | src/interface/efi/efi_mp.c | 112 | ||||
| -rw-r--r-- | src/interface/efi/efi_path.c | 305 | ||||
| -rw-r--r-- | src/interface/efi/efi_service.c | 138 | ||||
| -rw-r--r-- | src/interface/efi/efiprefix.c | 16 |
7 files changed, 920 insertions, 551 deletions
diff --git a/src/interface/efi/efi_autoexec.c b/src/interface/efi/efi_autoexec.c index fb12cef0..d9ad3b99 100644 --- a/src/interface/efi/efi_autoexec.c +++ b/src/interface/efi/efi_autoexec.c @@ -24,16 +24,16 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <string.h> -#include <stdlib.h> #include <errno.h> +#include <ipxe/timer.h> #include <ipxe/image.h> -#include <ipxe/init.h> -#include <ipxe/in.h> +#include <ipxe/netdevice.h> #include <ipxe/efi/efi.h> +#include <ipxe/efi/efi_utils.h> #include <ipxe/efi/efi_autoexec.h> -#include <ipxe/efi/Protocol/PxeBaseCode.h> -#include <ipxe/efi/Protocol/SimpleFileSystem.h> -#include <ipxe/efi/Guid/FileInfo.h> +#include <ipxe/efi/mnpnet.h> +#include <usr/imgmgmt.h> +#include <usr/sync.h> /** @file * @@ -41,413 +41,160 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * */ -/** Autoexec script filename */ -static wchar_t efi_autoexec_wname[] = L"autoexec.ipxe"; +/** Timeout for autoexec script downloads */ +#define EFI_AUTOEXEC_TIMEOUT ( 2 * TICKS_PER_SEC ) /** Autoexec script image name */ -static char efi_autoexec_name[] = "autoexec.ipxe"; - -/** Autoexec script (if any) */ -static void *efi_autoexec; - -/** Autoexec script length */ -static size_t efi_autoexec_len; +#define EFI_AUTOEXEC_NAME "autoexec.ipxe" + +/** An EFI autoexec script loader */ +struct efi_autoexec_loader { + /** Required protocol GUID */ + EFI_GUID *protocol; + /** + * Load autoexec script + * + * @v handle Handle on which protocol was found + * @v image Image to fill in + * @ret rc Return status code + */ + int ( * load ) ( EFI_HANDLE handle, struct image **image ); +}; /** - * Load autoexec script from path within filesystem + * Load autoexec script from filesystem * - * @v device Device handle - * @v path Relative path to image, or NULL to load from root + * @v handle Simple filesystem protocol handle + * @v image Image to fill in * @ret rc Return status code */ -static int efi_autoexec_filesystem ( EFI_HANDLE device, - EFI_DEVICE_PATH_PROTOCOL *path ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - union { - void *interface; - EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *fs; - } u; - struct { - EFI_FILE_INFO info; - CHAR16 name[ sizeof ( efi_autoexec_wname ) / - sizeof ( efi_autoexec_wname[0] ) ]; - } info; - FILEPATH_DEVICE_PATH *filepath; - EFI_FILE_PROTOCOL *root; - EFI_FILE_PROTOCOL *file; - UINTN size; - VOID *data; - unsigned int dirlen; - size_t len; - CHAR16 *wname; - EFI_STATUS efirc; +static int efi_autoexec_filesystem ( EFI_HANDLE handle, struct image **image ) { + EFI_HANDLE device = efi_loaded_image->DeviceHandle; int rc; - /* Identify directory */ - if ( path ) { - - /* Check relative device path is a file path */ - if ( ! ( ( path->Type == MEDIA_DEVICE_PATH ) && - ( path->SubType == MEDIA_FILEPATH_DP ) ) ) { - DBGC ( device, "EFI %s image path ", - efi_handle_name ( device ) ); - DBGC ( device, " \"%s\" is not a file path\n", - efi_devpath_text ( path ) ); - rc = -ENOTTY; - goto err_not_filepath; - } - filepath = container_of ( path, FILEPATH_DEVICE_PATH, Header ); - - /* Find length of containing directory */ - dirlen = ( ( ( ( path->Length[1] << 8 ) | path->Length[0] ) - - offsetof ( typeof ( *filepath ), PathName ) ) - / sizeof ( filepath->PathName[0] ) ); - for ( ; dirlen ; dirlen-- ) { - if ( filepath->PathName[ dirlen - 1 ] == L'\\' ) - break; - } - - } else { - - /* Use root directory */ - filepath = NULL; - dirlen = 0; - } - - /* Allocate filename */ - len = ( ( dirlen * sizeof ( wname[0] ) ) + sizeof ( efi_autoexec_wname ) ); - wname = malloc ( len ); - if ( ! wname ) { - rc = -ENOMEM; - goto err_wname; - } - memcpy ( wname, filepath->PathName, ( dirlen * sizeof ( wname[0] ) ) ); - memcpy ( &wname[dirlen], efi_autoexec_wname, sizeof ( efi_autoexec_wname ) ); - - /* Open simple file system protocol */ - if ( ( efirc = bs->OpenProtocol ( device, - &efi_simple_file_system_protocol_guid, - &u.interface, efi_image_handle, - device, - EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s has no filesystem instance: %s\n", - efi_handle_name ( device ), strerror ( rc ) ); - goto err_filesystem; - } - - /* Open root directory */ - if ( ( efirc = u.fs->OpenVolume ( u.fs, &root ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not open volume: %s\n", - efi_handle_name ( device ), strerror ( rc ) ); - goto err_volume; - } - - /* Open autoexec script */ - if ( ( efirc = root->Open ( root, &file, wname, - EFI_FILE_MODE_READ, 0 ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s has no %ls: %s\n", - efi_handle_name ( device ), wname, strerror ( rc ) ); - goto err_open; - } - - /* Get file information */ - size = sizeof ( info ); - if ( ( efirc = file->GetInfo ( file, &efi_file_info_id, &size, - &info ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not get %ls info: %s\n", - efi_handle_name ( device ), wname, strerror ( rc ) ); - goto err_getinfo; - } - size = info.info.FileSize; - - /* Ignore zero-length files */ - if ( ! size ) { - rc = -EINVAL; - DBGC ( device, "EFI %s has zero-length %ls\n", - efi_handle_name ( device ), wname ); - goto err_empty; - } - - /* Allocate temporary copy */ - if ( ( efirc = bs->AllocatePool ( EfiBootServicesData, size, - &data ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not allocate %ls: %s\n", - efi_handle_name ( device ), wname, strerror ( rc ) ); - goto err_alloc; - } - - /* Read file */ - if ( ( efirc = file->Read ( file, &size, data ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not read %ls: %s\n", - efi_handle_name ( device ), wname, strerror ( rc ) ); - goto err_read; + /* Check that we were loaded from a filesystem */ + if ( handle != device ) { + DBGC ( device, "EFI %s is not the file system handle\n", + efi_handle_name ( device ) ); + return -ENOTTY; } - /* Record autoexec script */ - efi_autoexec = data; - efi_autoexec_len = size; - data = NULL; - DBGC ( device, "EFI %s found %ls\n", efi_handle_name ( device ), wname ); + /* Try loading from loaded image directory, if supported */ + if ( ( rc = imgacquire ( "file:" EFI_AUTOEXEC_NAME, + EFI_AUTOEXEC_TIMEOUT, image ) ) == 0 ) + return 0; - /* Success */ - rc = 0; + /* Try loading from root directory, if supported */ + if ( ( rc = imgacquire ( "file:/" EFI_AUTOEXEC_NAME, + EFI_AUTOEXEC_TIMEOUT, image ) ) == 0 ) + return 0; - err_read: - if ( data ) - bs->FreePool ( data ); - err_alloc: - err_empty: - err_getinfo: - file->Close ( file ); - err_open: - root->Close ( root ); - err_volume: - bs->CloseProtocol ( device, &efi_simple_file_system_protocol_guid, - efi_image_handle, device ); - err_filesystem: - free ( wname ); - err_wname: - err_not_filepath: return rc; } /** - * Load autoexec script from TFTP server + * Load autoexec script via temporary network device * - * @v device Device handle + * @v handle Managed network protocol service binding handle + * @v image Image to fill in * @ret rc Return status code */ -static int efi_autoexec_tftp ( EFI_HANDLE device ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - union { - void *interface; - EFI_PXE_BASE_CODE_PROTOCOL *pxe; - } u; - EFI_PXE_BASE_CODE_MODE *mode; - EFI_PXE_BASE_CODE_PACKET *packet; - union { - struct in_addr in; - EFI_IP_ADDRESS ip; - } server; - size_t filename_max; - char *filename; - char *sep; - UINT64 size; - VOID *data; - EFI_STATUS efirc; +static int efi_autoexec_network ( EFI_HANDLE handle, struct image **image ) { + EFI_HANDLE device = efi_loaded_image->DeviceHandle; + struct net_device *netdev; int rc; - /* Open PXE base code protocol */ - if ( ( efirc = bs->OpenProtocol ( device, - &efi_pxe_base_code_protocol_guid, - &u.interface, efi_image_handle, - device, - EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s has no PXE base code instance: %s\n", + /* Create temporary network device */ + if ( ( rc = mnptemp_create ( handle, &netdev ) ) != 0 ) { + DBGC ( device, "EFI %s could not create net device: %s\n", efi_handle_name ( device ), strerror ( rc ) ); - goto err_pxe; - } - - /* Do not attempt to parse DHCPv6 packets */ - mode = u.pxe->Mode; - if ( mode->UsingIpv6 ) { - rc = -ENOTSUP; - DBGC ( device, "EFI %s has IPv6 PXE base code\n", - efi_handle_name ( device ) ); - goto err_ipv6; + goto err_create; } - /* Identify relevant reply packet */ - if ( mode->PxeReplyReceived && - mode->PxeReply.Dhcpv4.BootpBootFile[0] ) { - /* Use boot filename if present in PXE reply */ - DBGC ( device, "EFI %s using PXE reply filename\n", - efi_handle_name ( device ) ); - packet = &mode->PxeReply; - } else if ( mode->DhcpAckReceived && - mode->DhcpAck.Dhcpv4.BootpBootFile[0] ) { - /* Otherwise, use boot filename if present in DHCPACK */ - DBGC ( device, "EFI %s using DHCPACK filename\n", - efi_handle_name ( device ) ); - packet = &mode->DhcpAck; - } else if ( mode->ProxyOfferReceived && - mode->ProxyOffer.Dhcpv4.BootpBootFile[0] ) { - /* Otherwise, use boot filename if present in ProxyDHCPOFFER */ - DBGC ( device, "EFI %s using ProxyDHCPOFFER filename\n", - efi_handle_name ( device ) ); - packet = &mode->ProxyOffer; - } else { - /* No boot filename available */ - rc = -ENOENT; - DBGC ( device, "EFI %s has no PXE boot filename\n", - efi_handle_name ( device ) ); - goto err_packet; - } - - /* Allocate filename */ - filename_max = ( sizeof ( packet->Dhcpv4.BootpBootFile ) - + ( sizeof ( efi_autoexec_name ) - 1 /* NUL */ ) - + 1 /* NUL */ ); - filename = zalloc ( filename_max ); - if ( ! filename ) { - rc = -ENOMEM; - goto err_filename; - } - - /* Extract next-server address and boot filename */ - memset ( &server, 0, sizeof ( server ) ); - memcpy ( &server.in, packet->Dhcpv4.BootpSiAddr, - sizeof ( server.in ) ); - memcpy ( filename, packet->Dhcpv4.BootpBootFile, - sizeof ( packet->Dhcpv4.BootpBootFile ) ); - - /* Update filename to autoexec script name */ - sep = strrchr ( filename, '/' ); - if ( ! sep ) - sep = strrchr ( filename, '\\' ); - if ( ! sep ) - sep = ( filename - 1 ); - strcpy ( ( sep + 1 ), efi_autoexec_name ); - - /* Get file size */ - if ( ( efirc = u.pxe->Mtftp ( u.pxe, - EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE, - NULL, FALSE, &size, NULL, &server.ip, - ( ( UINT8 * ) filename ), NULL, - FALSE ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not get size of %s:%s: %s\n", - efi_handle_name ( device ), inet_ntoa ( server.in ), - filename, strerror ( rc ) ); - goto err_size; - } - - /* Ignore zero-length files */ - if ( ! size ) { - rc = -EINVAL; - DBGC ( device, "EFI %s has zero-length %s:%s\n", - efi_handle_name ( device ), inet_ntoa ( server.in ), - filename ); - goto err_empty; - } - - /* Allocate temporary copy */ - if ( ( efirc = bs->AllocatePool ( EfiBootServicesData, size, - &data ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not allocate %s:%s: %s\n", - efi_handle_name ( device ), inet_ntoa ( server.in ), - filename, strerror ( rc ) ); - goto err_alloc; + /* Open network device */ + if ( ( rc = netdev_open ( netdev ) ) != 0 ) { + DBGC ( device, "EFI %s could not open net device: %s\n", + efi_handle_name ( device ), strerror ( rc ) ); + goto err_open; } - /* Download file */ - if ( ( efirc = u.pxe->Mtftp ( u.pxe, EFI_PXE_BASE_CODE_TFTP_READ_FILE, - data, FALSE, &size, NULL, &server.ip, - ( ( UINT8 * ) filename ), NULL, - FALSE ) ) != 0 ) { - rc = -EEFI ( efirc ); - DBGC ( device, "EFI %s could not download %s:%s: %s\n", - efi_handle_name ( device ), inet_ntoa ( server.in ), - filename, strerror ( rc ) ); - goto err_download; + /* Attempt download */ + rc = imgacquire ( EFI_AUTOEXEC_NAME, EFI_AUTOEXEC_TIMEOUT, image ); + if ( rc != 0 ) { + DBGC ( device, "EFI %s could not download %s: %s\n", + efi_handle_name ( device ), EFI_AUTOEXEC_NAME, + strerror ( rc ) ); } - /* Record autoexec script */ - efi_autoexec = data; - efi_autoexec_len = size; - data = NULL; - DBGC ( device, "EFI %s found %s:%s\n", efi_handle_name ( device ), - inet_ntoa ( server.in ), filename ); + /* Ensure network exchanges have completed */ + sync ( EFI_AUTOEXEC_TIMEOUT ); - /* Success */ - rc = 0; - - err_download: - if ( data ) - bs->FreePool ( data ); - err_alloc: - err_empty: - err_size: - free ( filename ); - err_filename: - err_packet: - err_ipv6: - bs->CloseProtocol ( device, &efi_pxe_base_code_protocol_guid, - efi_image_handle, device ); - err_pxe: + err_open: + mnptemp_destroy ( netdev ); + err_create: return rc; } +/** Autoexec script loaders */ +static struct efi_autoexec_loader efi_autoexec_loaders[] = { + { + .protocol = &efi_simple_file_system_protocol_guid, + .load = efi_autoexec_filesystem, + }, + { + .protocol = &efi_managed_network_service_binding_protocol_guid, + .load = efi_autoexec_network, + }, +}; + /** * Load autoexec script * - * @v device Device handle - * @v path Image path within device handle * @ret rc Return status code */ -int efi_autoexec_load ( EFI_HANDLE device, - EFI_DEVICE_PATH_PROTOCOL *path ) { - int rc; - - /* Sanity check */ - assert ( efi_autoexec == NULL ); - assert ( efi_autoexec_len == 0 ); - - /* Try loading from file system loaded image directory, if supported */ - if ( ( rc = efi_autoexec_filesystem ( device, path ) ) == 0 ) - return 0; - - /* Try loading from file system root directory, if supported */ - if ( ( rc = efi_autoexec_filesystem ( device, NULL ) ) == 0 ) - return 0; - - /* Try loading via TFTP, if supported */ - if ( ( rc = efi_autoexec_tftp ( device ) ) == 0 ) - return 0; - - return -ENOENT; -} - -/** - * Register autoexec script - * - */ -static void efi_autoexec_startup ( void ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; +int efi_autoexec_load ( void ) { EFI_HANDLE device = efi_loaded_image->DeviceHandle; + EFI_HANDLE handle; + struct efi_autoexec_loader *loader; struct image *image; + unsigned int i; + int rc; - /* Do nothing if we have no autoexec script */ - if ( ! efi_autoexec ) - return; + /* Use first applicable loader */ + for ( i = 0 ; i < ( sizeof ( efi_autoexec_loaders ) / + sizeof ( efi_autoexec_loaders[0] ) ) ; i ++ ) { + + /* Locate required protocol for this loader */ + loader = &efi_autoexec_loaders[i]; + if ( ( rc = efi_locate_device ( device, loader->protocol, + &handle, 0 ) ) != 0 ) { + DBGC ( device, "EFI %s found no %s: %s\n", + efi_handle_name ( device ), + efi_guid_ntoa ( loader->protocol ), + strerror ( rc ) ); + continue; + } + DBGC ( device, "EFI %s found %s on ", + efi_handle_name ( device ), + efi_guid_ntoa ( loader->protocol ) ); + DBGC ( device, "%s\n", efi_handle_name ( handle ) ); + + /* Try loading */ + if ( ( rc = loader->load ( handle, &image ) ) != 0 ) + return rc; + + /* Discard zero-length images */ + if ( ! image->len ) { + DBGC ( device, "EFI %s discarding zero-length %s\n", + efi_handle_name ( device ), image->name ); + unregister_image ( image ); + return -ENOENT; + } - /* Create autoexec image */ - image = image_memory ( efi_autoexec_name, - virt_to_user ( efi_autoexec ), - efi_autoexec_len ); - if ( ! image ) { - DBGC ( device, "EFI %s could not create %s\n", - efi_handle_name ( device ), efi_autoexec_name ); - return; + DBGC ( device, "EFI %s loaded %s (%zd bytes)\n", + efi_handle_name ( device ), image->name, image->len ); + return 0; } - DBGC ( device, "EFI %s registered %s\n", - efi_handle_name ( device ), efi_autoexec_name ); - /* Free temporary copy */ - bs->FreePool ( efi_autoexec ); - efi_autoexec = NULL; + return -ENOENT; } - -/** Autoexec script startup function */ -struct startup_fn efi_autoexec_startup_fn __startup_fn ( STARTUP_NORMAL ) = { - .name = "efi_autoexec", - .startup = efi_autoexec_startup, -}; diff --git a/src/interface/efi/efi_driver.c b/src/interface/efi/efi_driver.c index 8e537d53..fd9be5f5 100644 --- a/src/interface/efi/efi_driver.c +++ b/src/interface/efi/efi_driver.c @@ -62,18 +62,85 @@ static LIST_HEAD ( efi_devices ); static int efi_driver_disconnecting; /** - * Find EFI device + * Allocate new EFI device * * @v device EFI device handle + * @ret efidev EFI device, or NULL on error + */ +struct efi_device * efidev_alloc ( EFI_HANDLE device ) { + EFI_BOOT_SERVICES *bs = efi_systab->BootServices; + struct efi_device *efidev = NULL; + union { + EFI_DEVICE_PATH_PROTOCOL *path; + void *interface; + } path; + EFI_DEVICE_PATH_PROTOCOL *path_end; + size_t path_len; + EFI_STATUS efirc; + int rc; + + /* Open device path */ + if ( ( efirc = bs->OpenProtocol ( device, + &efi_device_path_protocol_guid, + &path.interface, efi_image_handle, + device, + EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ + rc = -EEFI ( efirc ); + DBGC ( device, "EFIDRV %s could not open device path: %s\n", + efi_handle_name ( device ), strerror ( rc ) ); + goto err_open_path; + } + path_len = ( efi_path_len ( path.path ) + sizeof ( *path_end ) ); + + /* Allocate and initialise structure */ + efidev = zalloc ( sizeof ( *efidev ) + path_len ); + if ( ! efidev ) + goto err_alloc; + efidev->device = device; + efidev->dev.desc.bus_type = BUS_TYPE_EFI; + efidev->path = ( ( ( void * ) efidev ) + sizeof ( *efidev ) ); + memcpy ( efidev->path, path.path, path_len ); + INIT_LIST_HEAD ( &efidev->dev.children ); + list_add ( &efidev->dev.siblings, &efi_devices ); + + err_alloc: + bs->CloseProtocol ( device, &efi_device_path_protocol_guid, + efi_image_handle, device ); + err_open_path: + return efidev; +} + +/** + * Free EFI device + * + * @v efidev EFI device + */ +void efidev_free ( struct efi_device *efidev ) { + + assert ( list_empty ( &efidev->dev.children ) ); + list_del ( &efidev->dev.siblings ); + free ( efidev ); +} + +/** + * Find EFI device + * + * @v device EFI device handle (or child handle) * @ret efidev EFI device, or NULL if not found */ static struct efi_device * efidev_find ( EFI_HANDLE device ) { struct efi_device *efidev; + /* Avoid false positive matches against NULL children */ + if ( ! device ) + return NULL; + /* Look for an existing EFI device */ list_for_each_entry ( efidev, &efi_devices, dev.siblings ) { - if ( efidev->device == device ) + if ( ( device == efidev->device ) || + ( device == efidev->child ) ) { return efidev; + } } return NULL; @@ -153,16 +220,9 @@ efi_driver_supported ( EFI_DRIVER_BINDING_PROTOCOL *driver __unused, static EFI_STATUS EFIAPI efi_driver_start ( EFI_DRIVER_BINDING_PROTOCOL *driver __unused, EFI_HANDLE device, EFI_DEVICE_PATH_PROTOCOL *child ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; struct efi_driver *efidrv; struct efi_device *efidev; struct efi_saved_tpl tpl; - union { - EFI_DEVICE_PATH_PROTOCOL *path; - void *interface; - } path; - EFI_DEVICE_PATH_PROTOCOL *path_end; - size_t path_len; EFI_STATUS efirc; int rc; @@ -191,36 +251,12 @@ efi_driver_start ( EFI_DRIVER_BINDING_PROTOCOL *driver __unused, goto err_disconnecting; } - /* Open device path */ - if ( ( efirc = bs->OpenProtocol ( device, - &efi_device_path_protocol_guid, - &path.interface, efi_image_handle, - device, - EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ - rc = -EEFI ( efirc ); - DBGC ( device, "EFIDRV %s could not open device path: %s\n", - efi_handle_name ( device ), strerror ( rc ) ); - goto err_open_path; - } - path_len = ( efi_path_len ( path.path ) + sizeof ( *path_end ) ); - - /* Allocate and initialise structure */ - efidev = zalloc ( sizeof ( *efidev ) + path_len ); + /* Add new device */ + efidev = efidev_alloc ( device ); if ( ! efidev ) { efirc = EFI_OUT_OF_RESOURCES; goto err_alloc; } - efidev->device = device; - efidev->dev.desc.bus_type = BUS_TYPE_EFI; - efidev->path = ( ( ( void * ) efidev ) + sizeof ( *efidev ) ); - memcpy ( efidev->path, path.path, path_len ); - INIT_LIST_HEAD ( &efidev->dev.children ); - list_add ( &efidev->dev.siblings, &efi_devices ); - - /* Close device path */ - bs->CloseProtocol ( device, &efi_device_path_protocol_guid, - efi_image_handle, device ); - path.path = NULL; /* Try to start this device */ for_each_table_entry ( efidrv, EFI_DRIVERS ) { @@ -245,14 +281,8 @@ efi_driver_start ( EFI_DRIVER_BINDING_PROTOCOL *driver __unused, } efirc = EFI_UNSUPPORTED; - list_del ( &efidev->dev.siblings ); - free ( efidev ); + efidev_free ( efidev ); err_alloc: - if ( path.path ) { - bs->CloseProtocol ( device, &efi_device_path_protocol_guid, - efi_image_handle, device ); - } - err_open_path: err_disconnecting: efi_restore_tpl ( &tpl ); err_already_started: @@ -300,8 +330,7 @@ efi_driver_stop ( EFI_DRIVER_BINDING_PROTOCOL *driver __unused, efidrv = efidev->driver; assert ( efidrv != NULL ); efidrv->stop ( efidev ); - list_del ( &efidev->dev.siblings ); - free ( efidev ); + efidev_free ( efidev ); efi_restore_tpl ( &tpl ); return 0; diff --git a/src/interface/efi/efi_local.c b/src/interface/efi/efi_local.c index d3ac3d54..b2881424 100644 --- a/src/interface/efi/efi_local.c +++ b/src/interface/efi/efi_local.c @@ -35,6 +35,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <ipxe/uri.h> #include <ipxe/iobuf.h> #include <ipxe/process.h> +#include <ipxe/errortab.h> #include <ipxe/efi/efi.h> #include <ipxe/efi/efi_strings.h> #include <ipxe/efi/efi_path.h> @@ -48,6 +49,17 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * */ +/* Disambiguate the various error causes */ +#define EINFO_EEFI_OPEN \ + __einfo_uniqify ( EINFO_EPLATFORM, 0x01, "Could not open" ) +#define EINFO_EEFI_OPEN_NOT_FOUND \ + __einfo_platformify ( EINFO_EEFI_OPEN, EFI_NOT_FOUND, \ + "Not found" ) +#define EEFI_OPEN_NOT_FOUND \ + __einfo_error ( EINFO_EEFI_OPEN_NOT_FOUND ) +#define EEFI_OPEN( efirc ) EPLATFORM ( EINFO_EEFI_OPEN, efirc, \ + EEFI_OPEN_NOT_FOUND ) + /** Download blocksize */ #define EFI_LOCAL_BLKSIZE 4096 @@ -60,6 +72,13 @@ struct efi_local { /** Download process */ struct process process; + /** Download URI */ + struct uri *uri; + /** Volume name, or NULL to use loaded image's device */ + const char *volume; + /** File path */ + const char *path; + /** EFI root directory */ EFI_FILE_PROTOCOL *root; /** EFI file */ @@ -68,6 +87,24 @@ struct efi_local { size_t len; }; +/** Human-readable error messages */ +struct errortab efi_local_errors[] __errortab = { + __einfo_errortab ( EINFO_EEFI_OPEN_NOT_FOUND ), +}; + +/** + * Free local file + * + * @v refcnt Reference count + */ +static void efi_local_free ( struct refcnt *refcnt ) { + struct efi_local *local = + container_of ( refcnt, struct efi_local, refcnt ); + + uri_put ( local->uri ); + free ( local ); +} + /** * Close local file * @@ -96,91 +133,6 @@ static void efi_local_close ( struct efi_local *local, int rc ) { } /** - * Local file process - * - * @v local Local file - */ -static void efi_local_step ( struct efi_local *local ) { - EFI_FILE_PROTOCOL *file = local->file; - struct io_buffer *iobuf = NULL; - size_t remaining; - size_t frag_len; - UINTN size; - EFI_STATUS efirc; - int rc; - - /* Wait until data transfer interface is ready */ - if ( ! xfer_window ( &local->xfer ) ) - return; - - /* Presize receive buffer */ - remaining = local->len; - xfer_seek ( &local->xfer, remaining ); - xfer_seek ( &local->xfer, 0 ); - - /* Get file contents */ - while ( remaining ) { - - /* Calculate length for this fragment */ - frag_len = remaining; - if ( frag_len > EFI_LOCAL_BLKSIZE ) - frag_len = EFI_LOCAL_BLKSIZE; - - /* Allocate I/O buffer */ - iobuf = xfer_alloc_iob ( &local->xfer, frag_len ); - if ( ! iobuf ) { - rc = -ENOMEM; - goto err; - } - - /* Read block */ - size = frag_len; - if ( ( efirc = file->Read ( file, &size, iobuf->data ) ) != 0 ){ - rc = -EEFI ( efirc ); - DBGC ( local, "LOCAL %p could not read from file: %s\n", - local, strerror ( rc ) ); - goto err; - } - assert ( size <= frag_len ); - iob_put ( iobuf, size ); - - /* Deliver data */ - if ( ( rc = xfer_deliver_iob ( &local->xfer, - iob_disown ( iobuf ) ) ) != 0 ) { - DBGC ( local, "LOCAL %p could not deliver data: %s\n", - local, strerror ( rc ) ); - goto err; - } - - /* Move to next block */ - remaining -= frag_len; - } - - /* Close download */ - efi_local_close ( local, 0 ); - - return; - - err: - free_iob ( iobuf ); - efi_local_close ( local, rc ); -} - -/** Data transfer interface operations */ -static struct interface_operation efi_local_operations[] = { - INTF_OP ( xfer_window_changed, struct efi_local *, efi_local_step ), - INTF_OP ( intf_close, struct efi_local *, efi_local_close ), -}; - -/** Data transfer interface descriptor */ -static struct interface_descriptor efi_local_xfer_desc = - INTF_DESC ( struct efi_local, xfer, efi_local_operations ); - -/** Process descriptor */ -static struct process_descriptor efi_local_process_desc = - PROC_DESC_ONCE ( struct efi_local, process, efi_local_step ); - -/** * Check for matching volume name * * @v local Local file @@ -354,15 +306,14 @@ static int efi_local_open_volume_index ( struct efi_local *local, * Open root filesystem of specified volume * * @v local Local file - * @v volume Volume name, or NULL to use loaded image's device * @ret rc Return status code */ -static int efi_local_open_volume ( struct efi_local *local, - const char *volume ) { +static int efi_local_open_volume ( struct efi_local *local ) { EFI_BOOT_SERVICES *bs = efi_systab->BootServices; EFI_GUID *protocol = &efi_simple_file_system_protocol_guid; int ( * check ) ( struct efi_local *local, EFI_HANDLE device, EFI_FILE_PROTOCOL *root, const char *volume ); + const char *volume = local->volume; EFI_DEVICE_PATH_PROTOCOL *path; EFI_FILE_PROTOCOL *root; EFI_HANDLE *handles; @@ -461,7 +412,7 @@ static int efi_local_open_resolved ( struct efi_local *local, /* Open file */ if ( ( efirc = local->root->Open ( local->root, &file, name, EFI_FILE_MODE_READ, 0 ) ) != 0 ) { - rc = -EEFI ( efirc ); + rc = -EEFI_OPEN ( efirc ); DBGC ( local, "LOCAL %p could not open \"%s\": %s\n", local, resolved, strerror ( rc ) ); return rc; @@ -475,11 +426,9 @@ static int efi_local_open_resolved ( struct efi_local *local, * Open specified path * * @v local Local file - * @v filename Path to file relative to our own image * @ret rc Return status code */ -static int efi_local_open_path ( struct efi_local *local, - const char *filename ) { +static int efi_local_open_path ( struct efi_local *local ) { EFI_DEVICE_PATH_PROTOCOL *path = efi_loaded_image->FilePath; EFI_DEVICE_PATH_PROTOCOL *next; FILEPATH_DEVICE_PATH *fp; @@ -510,7 +459,7 @@ static int efi_local_open_path ( struct efi_local *local, } /* Resolve path */ - resolved = resolve_path ( base, filename ); + resolved = resolve_path ( base, local->path ); if ( ! resolved ) { rc = -ENOMEM; goto err_resolve; @@ -580,6 +529,106 @@ static int efi_local_len ( struct efi_local *local ) { } /** + * Local file process + * + * @v local Local file + */ +static void efi_local_step ( struct efi_local *local ) { + struct io_buffer *iobuf = NULL; + size_t remaining; + size_t frag_len; + UINTN size; + EFI_STATUS efirc; + int rc; + + /* Wait until data transfer interface is ready */ + if ( ! xfer_window ( &local->xfer ) ) + return; + + /* Open specified volume root directory, if not yet open */ + if ( ( ! local->root ) && + ( ( rc = efi_local_open_volume ( local ) ) != 0 ) ) + goto err; + + /* Open specified file, if not yet open */ + if ( ( ! local->file ) && + ( ( rc = efi_local_open_path ( local ) ) != 0 ) ) + goto err; + + /* Get file length, if not yet known */ + if ( ( ! local->len ) && + ( ( rc = efi_local_len ( local ) ) != 0 ) ) + goto err; + + /* Presize receive buffer */ + remaining = local->len; + xfer_seek ( &local->xfer, remaining ); + xfer_seek ( &local->xfer, 0 ); + + /* Get file contents */ + while ( remaining ) { + + /* Calculate length for this fragment */ + frag_len = remaining; + if ( frag_len > EFI_LOCAL_BLKSIZE ) + frag_len = EFI_LOCAL_BLKSIZE; + + /* Allocate I/O buffer */ + iobuf = xfer_alloc_iob ( &local->xfer, frag_len ); + if ( ! iobuf ) { + rc = -ENOMEM; + goto err; + } + + /* Read block */ + size = frag_len; + if ( ( efirc = local->file->Read ( local->file, &size, + iobuf->data ) ) != 0 ) { + rc = -EEFI ( efirc ); + DBGC ( local, "LOCAL %p could not read from file: %s\n", + local, strerror ( rc ) ); + goto err; + } + assert ( size <= frag_len ); + iob_put ( iobuf, size ); + + /* Deliver data */ + if ( ( rc = xfer_deliver_iob ( &local->xfer, + iob_disown ( iobuf ) ) ) != 0 ) { + DBGC ( local, "LOCAL %p could not deliver data: %s\n", + local, strerror ( rc ) ); + goto err; + } + + /* Move to next block */ + remaining -= frag_len; + } + + /* Close download */ + efi_local_close ( local, 0 ); + + return; + + err: + free_iob ( iobuf ); + efi_local_close ( local, rc ); +} + +/** Data transfer interface operations */ +static struct interface_operation efi_local_operations[] = { + INTF_OP ( xfer_window_changed, struct efi_local *, efi_local_step ), + INTF_OP ( intf_close, struct efi_local *, efi_local_close ), +}; + +/** Data transfer interface descriptor */ +static struct interface_descriptor efi_local_xfer_desc = + INTF_DESC ( struct efi_local, xfer, efi_local_operations ); + +/** Process descriptor */ +static struct process_descriptor efi_local_process_desc = + PROC_DESC_ONCE ( struct efi_local, process, efi_local_step ); + +/** * Open local file * * @v xfer Data transfer interface @@ -588,33 +637,26 @@ static int efi_local_len ( struct efi_local *local ) { */ static int efi_local_open ( struct interface *xfer, struct uri *uri ) { struct efi_local *local; - const char *volume; - const char *path; - int rc, vol; - - /* Parse URI */ - volume = ( ( uri->host && uri->host[0] ) ? uri->host : NULL ); - path = ( uri->opaque ? uri->opaque : uri->path ); + int vol; + int rc = 0; /* Allocate and initialise structure */ local = zalloc ( sizeof ( *local ) ); - if ( ! local ) { - rc = -ENOMEM; - goto err_alloc; - } - ref_init ( &local->refcnt, NULL ); - intf_init ( &local->xfer, &efi_local_xfer_desc, &local->refcnt ); - process_init_stopped ( &local->process, &efi_local_process_desc, - &local->refcnt ); - - if ( volume && strcmp ( volume, "*" ) == 0 ) { + if ( ! local ) + return -ENOMEM; + ref_init ( &local->refcnt, efi_local_free ); + local->uri = uri_get ( uri ); + local->volume = ( ( uri->host && uri->host[0] ) ? uri->host : NULL ); + local->path = ( uri->opaque ? uri->opaque : uri->path ); + + if ( local->path && local->volume && strcmp ( local->volume, "*" ) == 0 ) { /* Open on any volume */ vol = 0; while ( ( rc = efi_local_open_volume_index ( local, vol++ ) ) != -ENOENT ) { if ( rc != 0 ) continue; /* Open specified path */ - if ( ( rc = efi_local_open_path ( local, path ) ) != 0 ) { + if ( ( rc = efi_local_open_path ( local ) ) != 0 ) { local->root->Close ( local->root ); local->root = NULL; continue; @@ -622,21 +664,17 @@ static int efi_local_open ( struct interface *xfer, struct uri *uri ) { /* Success */ break; } - if ( rc != 0 ) - goto err_open_root; - } else { - /* Open specified volume */ - if ( ( rc = efi_local_open_volume ( local, volume ) ) != 0 ) - goto err_open_root; - - /* Open specified path */ - if ( ( rc = efi_local_open_path ( local, path ) ) != 0 ) - goto err_open_file; + if ( rc != 0 ) { + DBGC ( local, "LOCAL %p could not find %s on any partition\n", + local, local->path ); + ref_put ( &local->refcnt ); + return -ENOENT; + } } - /* Get length of file */ - if ( ( rc = efi_local_len ( local ) ) != 0 ) - goto err_len; + intf_init ( &local->xfer, &efi_local_xfer_desc, &local->refcnt ); + process_init_stopped ( &local->process, &efi_local_process_desc, + &local->refcnt ); /* Start download process */ process_add ( &local->process ); @@ -645,14 +683,6 @@ static int efi_local_open ( struct interface *xfer, struct uri *uri ) { intf_plug_plug ( &local->xfer, xfer ); ref_put ( &local->refcnt ); return 0; - - err_len: - err_open_file: - err_open_root: - efi_local_close ( local, 0 ); - ref_put ( &local->refcnt ); - err_alloc: - return rc; } /** EFI local file URI opener */ diff --git a/src/interface/efi/efi_mp.c b/src/interface/efi/efi_mp.c new file mode 100644 index 00000000..fdbbc9ae --- /dev/null +++ b/src/interface/efi/efi_mp.c @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2024 Michael Brown <mbrown@fensystems.co.uk>. + * + * 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 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +/** @file + * + * EFI multiprocessor API implementation + * + */ + +#include <string.h> +#include <errno.h> +#include <ipxe/mp.h> +#include <ipxe/efi/efi.h> +#include <ipxe/efi/Protocol/MpService.h> + +/** EFI multiprocessor function call data */ +struct efi_mp_func_data { + /** Multiprocessor function */ + mp_addr_t func; + /** Opaque data pointer */ + mp_addr_t opaque; +}; + +/** Multiprocessor services protocol */ +static EFI_MP_SERVICES_PROTOCOL *efimp; +EFI_REQUEST_PROTOCOL ( EFI_MP_SERVICES_PROTOCOL, &efimp ); + +/** + * Call multiprocessor function on current CPU + * + * @v buffer Multiprocessor function call data + */ +static EFIAPI VOID efi_mp_call ( VOID *buffer ) { + struct efi_mp_func_data *data = buffer; + + /* Call multiprocessor function */ + mp_call ( data->func, data->opaque ); +} + +/** + * Execute a multiprocessor function on the boot processor + * + * @v func Multiprocessor function + * @v opaque Opaque data pointer + */ +static void efi_mp_exec_boot ( mp_func_t func, void *opaque ) { + struct efi_mp_func_data data; + + /* Construct call data */ + data.func = mp_address ( func ); + data.opaque = mp_address ( opaque ); + + /* Call multiprocesor function */ + efi_mp_call ( &data ); +} + +/** + * Start a multiprocessor function on all application processors + * + * @v func Multiprocessor function + * @v opaque Opaque data pointer + */ +static void efi_mp_start_all ( mp_func_t func, void *opaque ) { + struct efi_mp_func_data data; + EFI_STATUS efirc; + int rc; + + /* Do nothing if MP services is not present */ + if ( ! efimp ) { + DBGC ( func, "EFIMP has no multiprocessor services\n" ); + return; + } + + /* Construct call data */ + data.func = mp_address ( func ); + data.opaque = mp_address ( opaque ); + + /* Start up all application processors */ + if ( ( efirc = efimp->StartupAllAPs ( efimp, efi_mp_call, FALSE, NULL, + 0, &data, NULL ) ) != 0 ) { + rc = -EEFI ( efirc ); + DBGC ( func, "EFIMP could not start APs: %s\n", + strerror ( rc ) ); + return; + } +} + +PROVIDE_MPAPI_INLINE ( efi, mp_address ); +PROVIDE_MPAPI ( efi, mp_exec_boot, efi_mp_exec_boot ); +PROVIDE_MPAPI ( efi, mp_start_all, efi_mp_start_all ); diff --git a/src/interface/efi/efi_path.c b/src/interface/efi/efi_path.c index d1e22eea..ac3c0498 100644 --- a/src/interface/efi/efi_path.c +++ b/src/interface/efi/efi_path.c @@ -34,6 +34,8 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <ipxe/fcp.h> #include <ipxe/ib_srp.h> #include <ipxe/usb.h> +#include <ipxe/settings.h> +#include <ipxe/dhcp.h> #include <ipxe/efi/efi.h> #include <ipxe/efi/efi_driver.h> #include <ipxe/efi/efi_path.h> @@ -44,6 +46,40 @@ FILE_LICENCE ( GPL2_OR_LATER ); * */ +/** An EFI device path settings block */ +struct efi_path_settings { + /** Settings interface */ + struct settings settings; + /** Device path */ + EFI_DEVICE_PATH_PROTOCOL *path; +}; + +/** An EFI device path setting */ +struct efi_path_setting { + /** Setting */ + const struct setting *setting; + /** + * Fetch setting + * + * @v pathset Path setting + * @v path Device path + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ + int ( * fetch ) ( struct efi_path_setting *pathset, + EFI_DEVICE_PATH_PROTOCOL *path, + void *data, size_t len ); + /** Path type */ + uint8_t type; + /** Path subtype */ + uint8_t subtype; + /** Offset within device path */ + uint8_t offset; + /** Length (if fixed) */ + uint8_t len; +}; + /** * Find next element in device path * @@ -112,6 +148,30 @@ size_t efi_path_len ( EFI_DEVICE_PATH_PROTOCOL *path ) { } /** + * Get MAC address from device path + * + * @v path Device path + * @ret mac MAC address, or NULL if not found + */ +void * efi_path_mac ( EFI_DEVICE_PATH_PROTOCOL *path ) { + EFI_DEVICE_PATH_PROTOCOL *next; + MAC_ADDR_DEVICE_PATH *mac; + + /* Search for MAC address path */ + for ( ; ( next = efi_path_next ( path ) ) ; path = next ) { + if ( ( path->Type == MESSAGING_DEVICE_PATH ) && + ( path->SubType == MSG_MAC_ADDR_DP ) ) { + mac = container_of ( path, MAC_ADDR_DEVICE_PATH, + Header ); + return &mac->MacAddress; + } + } + + /* No MAC address found */ + return NULL; +} + +/** * Get VLAN tag from device path * * @v path Device path @@ -176,6 +236,46 @@ int efi_path_guid ( EFI_DEVICE_PATH_PROTOCOL *path, union uuid *guid ) { } /** + * Parse URI from device path + * + * @v path Device path + * @ret uri URI, or NULL if not a URI + */ +struct uri * efi_path_uri ( EFI_DEVICE_PATH_PROTOCOL *path ) { + EFI_DEVICE_PATH_PROTOCOL *next; + URI_DEVICE_PATH *uripath; + char *uristring; + struct uri *uri; + size_t len; + + /* Search for URI device path */ + for ( ; ( next = efi_path_next ( path ) ) ; path = next ) { + if ( ( path->Type == MESSAGING_DEVICE_PATH ) && + ( path->SubType == MSG_URI_DP ) ) { + + /* Calculate path length */ + uripath = container_of ( path, URI_DEVICE_PATH, + Header ); + len = ( ( ( path->Length[1] << 8 ) | path->Length[0] ) + - offsetof ( typeof ( *uripath ), Uri ) ); + + /* Parse URI */ + uristring = zalloc ( len + 1 /* NUL */ ); + if ( ! uristring ) + return NULL; + memcpy ( uristring, uripath->Uri, len ); + uri = parse_uri ( uristring ); + free ( uristring ); + + return uri; + } + } + + /* No URI path found */ + return NULL; +} + +/** * Concatenate EFI device paths * * @v ... List of device paths (NULL terminated) @@ -593,3 +693,208 @@ EFI_DEVICE_PATH_PROTOCOL * efi_describe ( struct interface *intf ) { intf_put ( dest ); return path; } + +/** + * Fetch an EFI device path fixed-size setting + * + * @v pathset Path setting + * @v path Device path + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int efi_path_fetch_fixed ( struct efi_path_setting *pathset, + EFI_DEVICE_PATH_PROTOCOL *path, + void *data, size_t len ) { + + /* Copy data */ + if ( len > pathset->len ) + len = pathset->len; + memcpy ( data, ( ( ( void * ) path ) + pathset->offset ), len ); + + return pathset->len; +} + +/** + * Fetch an EFI device path DNS setting + * + * @v pathset Path setting + * @v path Device path + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int efi_path_fetch_dns ( struct efi_path_setting *pathset, + EFI_DEVICE_PATH_PROTOCOL *path, + void *data, size_t len ) { + DNS_DEVICE_PATH *dns = container_of ( path, DNS_DEVICE_PATH, Header ); + unsigned int count; + unsigned int i; + size_t frag_len; + + /* Check applicability */ + if ( ( !! dns->IsIPv6 ) != + ( pathset->setting->type == &setting_type_ipv6 ) ) + return -ENOENT; + + /* Calculate number of addresses */ + count = ( ( ( ( path->Length[1] << 8 ) | path->Length[0] ) - + pathset->offset ) / sizeof ( dns->DnsServerIp[0] ) ); + + /* Copy data */ + for ( i = 0 ; i < count ; i++ ) { + frag_len = len; + if ( frag_len > pathset->len ) + frag_len = pathset->len; + memcpy ( data, &dns->DnsServerIp[i], frag_len ); + data += frag_len; + len -= frag_len; + } + + return ( count * pathset->len ); +} + +/** EFI device path settings */ +static struct efi_path_setting efi_path_settings[] = { + { &ip_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv4_DP, offsetof ( IPv4_DEVICE_PATH, LocalIpAddress ), + sizeof ( struct in_addr ) }, + { &netmask_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv4_DP, offsetof ( IPv4_DEVICE_PATH, SubnetMask ), + sizeof ( struct in_addr ) }, + { &gateway_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv4_DP, offsetof ( IPv4_DEVICE_PATH, GatewayIpAddress ), + sizeof ( struct in_addr ) }, + { &ip6_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv6_DP, offsetof ( IPv6_DEVICE_PATH, LocalIpAddress ), + sizeof ( struct in6_addr ) }, + { &len6_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv6_DP, offsetof ( IPv6_DEVICE_PATH, PrefixLength ), + sizeof ( uint8_t ) }, + { &gateway6_setting, efi_path_fetch_fixed, MESSAGING_DEVICE_PATH, + MSG_IPv6_DP, offsetof ( IPv6_DEVICE_PATH, GatewayIpAddress ), + sizeof ( struct in6_addr ) }, + { &dns_setting, efi_path_fetch_dns, MESSAGING_DEVICE_PATH, + MSG_DNS_DP, offsetof ( DNS_DEVICE_PATH, DnsServerIp ), + sizeof ( struct in_addr ) }, + { &dns6_setting, efi_path_fetch_dns, MESSAGING_DEVICE_PATH, + MSG_DNS_DP, offsetof ( DNS_DEVICE_PATH, DnsServerIp ), + sizeof ( struct in6_addr ) }, +}; + +/** + * Fetch value of EFI device path setting + * + * @v settings Settings block + * @v setting Setting to fetch + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int efi_path_fetch ( struct settings *settings, struct setting *setting, + void *data, size_t len ) { + struct efi_path_settings *pathsets = + container_of ( settings, struct efi_path_settings, settings ); + EFI_DEVICE_PATH_PROTOCOL *path = pathsets->path; + EFI_DEVICE_PATH_PROTOCOL *next; + struct efi_path_setting *pathset; + unsigned int i; + int ret; + + /* Find matching path setting, if any */ + for ( i = 0 ; i < ( sizeof ( efi_path_settings ) / + sizeof ( efi_path_settings[0] ) ) ; i++ ) { + + /* Check for a matching setting */ + pathset = &efi_path_settings[i]; + if ( setting_cmp ( setting, pathset->setting ) != 0 ) + continue; + + /* Find matching device path element, if any */ + for ( ; ( next = efi_path_next ( path ) ) ; path = next ) { + + /* Check for a matching path type */ + if ( ( path->Type != pathset->type ) || + ( path->SubType != pathset->subtype ) ) + continue; + + /* Fetch value */ + if ( ( ret = pathset->fetch ( pathset, path, + data, len ) ) < 0 ) + return ret; + + /* Apply default type, if not already set */ + if ( ! setting->type ) + setting->type = pathset->setting->type; + + return ret; + } + break; + } + + return -ENOENT; +} + +/** EFI device path settings operations */ +static struct settings_operations efi_path_settings_operations = { + .fetch = efi_path_fetch, +}; + +/** + * Create per-netdevice EFI path settings + * + * @v netdev Network device + * @v priv Private data + * @ret rc Return status code + */ +static int efi_path_net_probe ( struct net_device *netdev, void *priv ) { + struct efi_path_settings *pathsets = priv; + struct settings *settings = &pathsets->settings; + EFI_DEVICE_PATH_PROTOCOL *path = efi_loaded_image_path; + unsigned int vlan; + void *mac; + int rc; + + /* Check applicability */ + pathsets->path = path; + mac = efi_path_mac ( path ); + vlan = efi_path_vlan ( path ); + if ( ( mac == NULL ) || + ( memcmp ( mac, netdev->ll_addr, + netdev->ll_protocol->ll_addr_len ) != 0 ) || + ( vlan != vlan_tag ( netdev ) ) ) { + DBGC ( settings, "EFI path %s does not apply to %s\n", + efi_devpath_text ( path ), netdev->name ); + return 0; + } + + /* Never override a real DHCP settings block */ + if ( find_child_settings ( netdev_settings ( netdev ), + DHCP_SETTINGS_NAME ) ) { + DBGC ( settings, "EFI path %s not overriding %s DHCP " + "settings\n", efi_devpath_text ( path ), netdev->name ); + return 0; + } + + /* Initialise and register settings */ + settings_init ( settings, &efi_path_settings_operations, + &netdev->refcnt, NULL ); + if ( ( rc = register_settings ( settings, netdev_settings ( netdev ), + DHCP_SETTINGS_NAME ) ) != 0 ) { + DBGC ( settings, "EFI path %s could not register for %s: %s\n", + efi_devpath_text ( path ), netdev->name, + strerror ( rc ) ); + return rc; + } + DBGC ( settings, "EFI path %s registered for %s\n", + efi_devpath_text ( path ), netdev->name ); + + return 0; +} + +/** EFI path settings per-netdevice driver */ +struct net_driver efi_path_net_driver __net_driver = { + .name = "EFI path", + .priv_len = sizeof ( struct efi_path_settings ), + .probe = efi_path_net_probe, +}; diff --git a/src/interface/efi/efi_service.c b/src/interface/efi/efi_service.c new file mode 100644 index 00000000..d4129c0d --- /dev/null +++ b/src/interface/efi/efi_service.c @@ -0,0 +1,138 @@ +/* + * Copyright (C) 2024 Michael Brown <mbrown@fensystems.co.uk>. + * + * 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 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +/** @file + * + * EFI service binding + * + */ + +#include <string.h> +#include <errno.h> +#include <ipxe/efi/efi.h> +#include <ipxe/efi/efi_service.h> +#include <ipxe/efi/Protocol/ServiceBinding.h> + +/** + * Add service to child handle + * + * @v service Service binding handle + * @v binding Service binding protocol GUID + * @v handle Handle on which to install child + * @ret rc Return status code + */ +int efi_service_add ( EFI_HANDLE service, EFI_GUID *binding, + EFI_HANDLE *handle ) { + EFI_BOOT_SERVICES *bs = efi_systab->BootServices; + union { + EFI_SERVICE_BINDING_PROTOCOL *sb; + void *interface; + } u; + EFI_STATUS efirc; + int rc; + + /* Open service binding protocol */ + if ( ( efirc = bs->OpenProtocol ( service, binding, &u.interface, + efi_image_handle, service, + EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ + rc = -EEFI ( efirc ); + DBGC ( service, "EFISVC %s cannot open %s binding: %s\n", + efi_handle_name ( service ), efi_guid_ntoa ( binding ), + strerror ( rc ) ); + goto err_open; + } + + /* Create child handle */ + if ( ( efirc = u.sb->CreateChild ( u.sb, handle ) ) != 0 ) { + rc = -EEFI ( efirc ); + DBGC ( service, "EFISVC %s could not create %s child: %s\n", + efi_handle_name ( service ), efi_guid_ntoa ( binding ), + strerror ( rc ) ); + goto err_create; + } + + /* Success */ + rc = 0; + DBGC ( service, "EFISVC %s created %s child ", + efi_handle_name ( service ), efi_guid_ntoa ( binding ) ); + DBGC ( service, "%s\n", efi_handle_name ( *handle ) ); + + err_create: + bs->CloseProtocol ( service, binding, efi_image_handle, service ); + err_open: + return rc; +} + +/** + * Remove service from child handle + * + * @v service Service binding handle + * @v binding Service binding protocol GUID + * @v handle Child handle + * @ret rc Return status code + */ +int efi_service_del ( EFI_HANDLE service, EFI_GUID *binding, + EFI_HANDLE handle ) { + EFI_BOOT_SERVICES *bs = efi_systab->BootServices; + union { + EFI_SERVICE_BINDING_PROTOCOL *sb; + void *interface; + } u; + EFI_STATUS efirc; + int rc; + + DBGC ( service, "EFISVC %s removing %s child ", + efi_handle_name ( service ), efi_guid_ntoa ( binding ) ); + DBGC ( service, "%s\n", efi_handle_name ( handle ) ); + + /* Open service binding protocol */ + if ( ( efirc = bs->OpenProtocol ( service, binding, &u.interface, + efi_image_handle, service, + EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ + rc = -EEFI ( efirc ); + DBGC ( service, "EFISVC %s cannot open %s binding: %s\n", + efi_handle_name ( service ), efi_guid_ntoa ( binding ), + strerror ( rc ) ); + goto err_open; + } + + /* Destroy child handle */ + if ( ( efirc = u.sb->DestroyChild ( u.sb, handle ) ) != 0 ) { + rc = -EEFI ( efirc ); + DBGC ( service, "EFISVC %s could not destroy %s child ", + efi_handle_name ( service ), efi_guid_ntoa ( binding ) ); + DBGC ( service, "%s: %s\n", + efi_handle_name ( handle ), strerror ( rc ) ); + goto err_destroy; + } + + /* Success */ + rc = 0; + + err_destroy: + bs->CloseProtocol ( service, binding, efi_image_handle, service ); + err_open: + return rc; +} diff --git a/src/interface/efi/efiprefix.c b/src/interface/efi/efiprefix.c index 26116068..10d8f0bf 100644 --- a/src/interface/efi/efiprefix.c +++ b/src/interface/efi/efiprefix.c @@ -22,6 +22,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <stdlib.h> #include <errno.h> #include <ipxe/device.h> +#include <ipxe/uri.h> #include <ipxe/init.h> #include <ipxe/efi/efi.h> #include <ipxe/efi/efi_driver.h> @@ -30,6 +31,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <ipxe/efi/efi_autoexec.h> #include <ipxe/efi/efi_cachedhcp.h> #include <ipxe/efi/efi_watchdog.h> +#include <ipxe/efi/efi_path.h> #include <ipxe/efi/efi_veto.h> /** @@ -79,16 +81,19 @@ EFI_STATUS EFIAPI _efi_start ( EFI_HANDLE image_handle, static void efi_init_application ( void ) { EFI_HANDLE device = efi_loaded_image->DeviceHandle; EFI_DEVICE_PATH_PROTOCOL *devpath = efi_loaded_image_path; - EFI_DEVICE_PATH_PROTOCOL *filepath = efi_loaded_image->FilePath; + struct uri *uri; + + /* Set current working URI from device path, if present */ + uri = efi_path_uri ( devpath ); + if ( uri ) + churi ( uri ); + uri_put ( uri ); /* Identify autoboot device, if any */ efi_set_autoboot_ll_addr ( device, devpath ); /* Store cached DHCP packet, if any */ efi_cachedhcp_record ( device, devpath ); - - /* Load autoexec script, if any */ - efi_autoexec_load ( device, filepath ); } /** EFI application initialisation function */ @@ -103,6 +108,9 @@ struct init_fn efi_init_application_fn __init_fn ( INIT_NORMAL ) = { */ static int efi_probe ( struct root_device *rootdev __unused ) { + /* Try loading autoexec script */ + efi_autoexec_load(); + /* Remove any vetoed drivers */ efi_veto(); |