diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/nfs.h')
| -rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/nfs.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/nfs.h b/qemu/roms/ipxe/src/include/ipxe/nfs.h new file mode 100644 index 000000000..498ed5a27 --- /dev/null +++ b/qemu/roms/ipxe/src/include/ipxe/nfs.h @@ -0,0 +1,157 @@ +#ifndef _IPXE_NFS_H +#define _IPXE_NFS_H + +#include <stdint.h> +#include <ipxe/oncrpc.h> + +/** @file + * + * Network File System protocol. + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** NFS protocol number */ +#define ONCRPC_NFS 100003 + +/** NFS protocol version */ +#define NFS_VERS 3 + +/** No error*/ +#define NFS3_OK 0 +/** Not owner */ +#define NFS3ERR_PERM 1 +/** No such file or directory */ +#define NFS3ERR_NOENT 2 +/** I/O error */ +#define NFS3ERR_IO 5 +/** No such device or address */ +#define NFS3ERR_NXIO 6 +/** Permission denied */ +#define NFS3ERR_ACCES 13 +/** The file specified already exists */ +#define NFS3ERR_EXIST 17 +/** Attempt to do a cross-device hard link */ +#define NFS3ERR_XDEV 18 +/** No such device */ +#define NFS3ERR_NODEV 19 +/** Not a directory */ +#define NFS3ERR_NOTDIR 20 + /**Is a directory */ +#define NFS3ERR_ISDIR 21 +/** Invalid argument */ +#define NFS3ERR_INVAL 22 +/** Filename too long */ +#define NFS3ERR_NAMETOOLONG 63 +/** Invalid file handle */ +#define NFS3ERR_STALE 70 +/** Too many levels of remote in path */ +#define NFS3ERR_REMOTE 71 +/** Illegal NFS file handle */ +#define NFS3ERR_BADHANDLE 10001 +/** READDIR or READDIRPLUS cookie is stale */ +#define NFS3ERR_BAD_COOKIE 10003 +/** Operation not supported */ +#define NFS3ERR_NOTSUPP 10004 +/** Buffer or request is too small */ +#define NFS3ERR_TOOSMALL 10005 +/** An error occurred on the server which does not map to any of the legal NFS + * version 3 protocol error values */ +#define NFS3ERR_SERVERFAULT 10006 +/** The server initiated the request, but was not able to complete it in a + * timely fashion */ +#define NFS3ERR_JUKEBOX 10008 + +enum nfs_attr_type { + NFS_ATTR_SYMLINK = 5, +}; + +/** + * A NFS file handle + * + */ +struct nfs_fh { + uint8_t fh[64]; + size_t size; +}; + +/** + * A NFS LOOKUP reply + * + */ +struct nfs_lookup_reply { + /** Reply status */ + uint32_t status; + /** Entity type */ + enum nfs_attr_type ent_type; + /** File handle */ + struct nfs_fh fh; +}; + +/** + * A NFS READLINK reply + * + */ +struct nfs_readlink_reply { + /** Reply status */ + uint32_t status; + /** File path length */ + uint32_t path_len; + /** File path */ + char *path; +}; + + +/** + * A NFS READ reply + * + */ +struct nfs_read_reply { + /** Reply status */ + uint32_t status; + /** File size */ + uint64_t filesize; + /** Bytes read */ + uint32_t count; + /** End-of-File indicator */ + uint32_t eof; + /** Data length */ + uint32_t data_len; + /** Data read */ + void *data; +}; + +size_t nfs_iob_get_fh ( struct io_buffer *io_buf, struct nfs_fh *fh ); +size_t nfs_iob_add_fh ( struct io_buffer *io_buf, const struct nfs_fh *fh ); + +/** + * Prepare an ONC RPC session to be used as a NFS session + * + * @v session ONC RPC session + * @v credential ONC RPC credential + * + * The credential parameter must not be NULL, use 'oncrpc_auth_none' if you + * don't want a particular scheme to be used. + */ +static inline void nfs_init_session ( struct oncrpc_session *session, + struct oncrpc_cred *credential ) { + oncrpc_init_session ( session, credential, &oncrpc_auth_none, + ONCRPC_NFS, NFS_VERS ); +} + +int nfs_lookup ( struct interface *intf, struct oncrpc_session *session, + const struct nfs_fh *fh, const char *filename ); +int nfs_readlink ( struct interface *intf, struct oncrpc_session *session, + const struct nfs_fh *fh ); +int nfs_read ( struct interface *intf, struct oncrpc_session *session, + const struct nfs_fh *fh, uint64_t offset, uint32_t count ); + +int nfs_get_lookup_reply ( struct nfs_lookup_reply *lookup_reply, + struct oncrpc_reply *reply ); +int nfs_get_readlink_reply ( struct nfs_readlink_reply *readlink_reply, + struct oncrpc_reply *reply ); +int nfs_get_read_reply ( struct nfs_read_reply *read_reply, + struct oncrpc_reply *reply ); + +#endif /* _IPXE_NFS_H */ |