#ifndef _IPXE_ONCRPC_H
#define _IPXE_ONCRPC_H
#include <stdint.h>
#include <ipxe/interface.h>
#include <ipxe/iobuf.h>
/** @file
*
* SUN ONC RPC protocol.
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** ONC RCP Version */
#define ONCRPC_VERS 2
/** ONC RPC Null Authentication */
#define ONCRPC_AUTH_NONE 0
/** ONC RPC System Authentication (also called UNIX Authentication) */
#define ONCRPC_AUTH_SYS 1
/** Size of an ONC RPC header */
#define ONCRPC_HEADER_SIZE ( 11 * sizeof ( uint32_t ) )
#define ONCRPC_FIELD( type, value ) { oncrpc_ ## type, { .type = value } }
#define ONCRPC_SUBFIELD( type, args... ) \
{ oncrpc_ ## type, { .type = { args } } }
#define ONCRPC_FIELD_END { oncrpc_none, { } }
/** Enusure that size is a multiple of four */
#define oncrpc_align( size ) ( ( (size) + 3 ) & ~3 )
/**
* Calculate the length of a string, including padding bytes.
*
* @v str String
* @ret size Length of the padded string
*/
#define oncrpc_strlen( str ) ( oncrpc_align ( strlen ( str ) ) + \
sizeof ( uint32_t ) )
struct oncrpc_cred {
uint32_t flavor;
uint32_t length;
};
struct oncrpc_cred_sys {
struct oncrpc_cred credential;
uint32_t stamp;
char *hostname;
uint32_t uid;
uint32_t gid;
uint32_t aux_gid_len;
uint32_t aux_gid[16];
};
struct oncrpc_reply
{
struct oncrpc_cred *verifier;
uint32_t rpc_id;
uint32_t reply_state;
uint32_t accept_state;
uint32_t frame_size;
struct io_buffer *data;
};
struct oncrpc_session {
struct oncrpc_reply pending_reply;
struct oncrpc_cred *credential;
struct oncrpc_cred *verifier;
uint32_t rpc_id;
uint32_t prog_name;
uint32_t prog_vers;
};
enum oncrpc_field_type {
oncrpc_none = 0,
oncrpc_int32,
oncrpc_int64,
oncrpc_str,
oncrpc_array,
oncrpc_intarray,
oncrpc_cred,
};
union oncrpc_field_value {
struct {
size_t length;
const void *ptr;
} array;
struct {
size_t length;
const uint32_t *ptr;
} intarray;
int64_t int64;
int32_t int32;
const char *str;
const struct oncrpc_cred *cred;
};
struct oncrpc_field {
enum oncrpc_field_type type;
union oncrpc_field_value value;
};
extern struct oncrpc_cred oncrpc_auth_none;
int oncrpc_init_cred_sys ( struct oncrpc_cred_sys *auth_sys );
void oncrpc_init_session ( struct oncrpc_session *session,
struct oncrpc_cred *credential,
struct oncrpc_cred *verifier, uint32_t prog_name,
uint32_t prog_vers );
int oncrpc_call ( struct interface *intf, struct oncrpc_session *session,
uint32_t proc_name, const struct oncrpc_field fields[] );
size_t oncrpc_compute_size ( const struct oncrpc_field fields[] );
int oncrpc_get_reply ( struct oncrpc_session *session,
struct oncrpc_reply *reply, struct io_buffer *io_buf );
#endif /* _IPXE_ONCRPC_H */
