libnfs/include/libnfs-zdr.h

282 lines
6.4 KiB
C

/*
Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* This file contains definitions for the built in ZDR implementation.
* This is a very limited ZDR subset that can only marshal to/from a momory buffer,
* i.e. zdrmem_create() buffers.
* It aims to be compatible with normal rpcgen generated functions.
*/
#include "config.h"
#ifndef _LIBNFS_ZDR_H_
#define _LIBNFS_ZDR_H_
#include <stdio.h>
#include <assert.h>
#include <stdint.h>
#include <sys/types.h>
#define _RPC_RPC_H 1
#define _RPC_ZDR_H 1
#define _RPC_AUTH_H 1
/* we dont need these */
typedef void CLIENT;
struct svc_req {
};
typedef void SVCXPRT;
#define ZDR_INLINE(...) NULL
#define IZDR_PUT_U_LONG(...) assert(0)
#define IZDR_GET_U_LONG(...) (assert(0), 0)
#define IZDR_PUT_LONG(...) assert(0)
#define IZDR_GET_LONG(...) (assert(0), 0)
#define IZDR_PUT_BOOL(...) assert(0)
#define IZDR_GET_BOOL(...) (assert(0), 0)
#define TRUE 1
#define FALSE 0
enum zdr_op {
ZDR_ENCODE = 0,
ZDR_DECODE = 1
};
struct zdr_mem {
struct zdr_mem *next;
caddr_t buf;
uint32_t size;
};
struct ZDR {
enum zdr_op x_op;
caddr_t buf;
int size;
int pos;
struct zdr_mem *mem;
};
typedef struct ZDR ZDR;
typedef uint32_t u_int;
typedef uint32_t enum_t;
typedef uint32_t bool_t;
typedef int (*zdrproc_t) (ZDR *, void *,...);
/* XXX find out what we can get rid of */
#define AUTH_NONE 0
#define AUTH_NULL 0
#define AUTH_UNIX 1
struct opaque_auth {
uint32_t oa_flavor;
caddr_t oa_base;
uint32_t oa_length;
};
extern struct opaque_auth _null_auth;
struct AUTH {
struct opaque_auth ah_cred;
struct opaque_auth ah_verf;
caddr_t ah_private;
};
enum msg_type {
CALL=0,
REPLY=1
};
#define RPC_MSG_VERSION 2
struct call_body {
uint32_t cb_rpcvers;
uint32_t cb_prog;
uint32_t cb_vers;
uint32_t cb_proc;
struct opaque_auth cb_cred;
struct opaque_auth cb_verf;
};
enum accept_stat {
SUCCESS=0,
PROG_UNAVAIL=1,
PROG_MISMATCH=2,
PROC_UNAVAIL=3,
GARBAGE_ARGS=4,
SYSTEM_ERR=5
};
struct accepted_reply {
struct opaque_auth ar_verf;
uint32_t ar_stat;
union {
struct {
uint32_t low;
uint32_t high;
} AR_versions;
struct {
caddr_t where;
zdrproc_t proc;
} AR_results;
/* and many other null cases */
} ru;
#define ar_results ru.AR_results
#define ar_vers ru.AR_versions
};
enum reject_stat {
RPC_MISMATCH=0,
AUTH_ERROR=1
};
enum auth_stat {
AUTH_OK=0,
/*
* failed at remote end
*/
AUTH_BADCRED=1, /* bogus credentials (seal broken) */
AUTH_REJECTEDCRED=2, /* client should begin new session */
AUTH_BADVERF=3, /* bogus verifier (seal broken) */
AUTH_REJECTEDVERF=4, /* verifier expired or was replayed */
AUTH_TOOWEAK=5, /* rejected due to security reasons */
/*
* failed locally
*/
AUTH_INVALIDRESP=6, /* bogus response verifier */
AUTH_FAILED=7 /* some unknown reason */
};
struct rejected_reply {
enum reject_stat rj_stat;
union {
struct {
u_long low;
u_long high;
} RJ_versions;
enum auth_stat RJ_why; /* why authentication did not work */
} ru;
#define rj_vers ru.RJ_versions
#define rj_why ru.RJ_why
};
#define MSG_ACCEPTED 0
#define MSG_DENIED 1
struct reply_body {
uint32_t rp_stat;
union {
struct accepted_reply RP_ar;
struct rejected_reply RP_dr;
} ru;
#define rp_acpt ru.RP_ar
#define rp_rjct ru.RP_dr
};
struct rpc_msg {
uint32_t rm_xid;
uint32_t rm_direction;
union {
struct call_body RM_cmb;
struct reply_body RM_rmb;
} ru;
#define rm_call ru.RM_cmb
#define rm_reply ru.RM_rmb
};
#define acpted_rply ru.RM_rmb.ru.RP_ar
#define rjcted_rply ru.RM_rmb.ru.RP_dr
#define zdrmem_create libnfs_zdrmem_create
void libnfs_zdrmem_create(ZDR *zdrs, const caddr_t addr, uint32_t size, enum zdr_op xop);
#define zdr_destroy libnfs_zdr_destroy
void libnfs_zdr_destroy(ZDR *zdrs);
#define zdr_bytes libnfs_zdr_bytes
bool_t libnfs_zdr_bytes(ZDR *zdrs, char **bufp, uint32_t *size, uint32_t maxsize);
#define zdr_u_int libnfs_zdr_u_int
bool_t libnfs_zdr_u_int(ZDR *zdrs, uint32_t *u);
#define zdr_int libnfs_zdr_int
bool_t libnfs_zdr_int(ZDR *zdrs, int32_t *i);
#define zdr_u_quad_t libnfs_zdr_u_quad_t
bool_t libnfs_zdr_u_quad_t(ZDR *zdrs, uint64_t *u);
#define zdr_quad_t libnfs_zdr_quad_t
bool_t libnfs_zdr_quad_t(ZDR *zdrs, int64_t *i);
#define zdr_enum libnfs_zdr_enum
bool_t libnfs_zdr_enum(ZDR *zdrs, enum_t *e);
#define zdr_bool libnfs_zdr_bool
bool_t libnfs_zdr_bool(ZDR *zdrs, bool_t *b);
#define zdr_void libnfs_zdr_void
bool_t libnfs_zdr_void(void);
#define zdr_pointer libnfs_zdr_pointer
bool_t libnfs_zdr_pointer(ZDR *zdrs, char **objp, uint32_t size, zdrproc_t proc);
#define zdr_opaque libnfs_zdr_opaque
bool_t libnfs_zdr_opaque(ZDR *zdrs, char *objp, uint32_t size);
#define zdr_string libnfs_zdr_string
bool_t libnfs_zdr_string(ZDR *zdrs, char **strp, uint32_t maxsize);
#define zdr_array libnfs_zdr_array
bool_t libnfs_zdr_array(ZDR *zdrs, char **arrp, uint32_t *size, uint32_t maxsize, uint32_t elsize, zdrproc_t proc);
#define zdr_setpos libnfs_zdr_setpos
bool_t libnfs_zdr_setpos(ZDR *zdrs, uint32_t pos);
#define zdr_getpos libnfs_zdr_getpos
uint32_t libnfs_zdr_getpos(ZDR *zdrs);
#define zdr_free libnfs_zdr_free
void libnfs_zdr_free(zdrproc_t proc, char *objp);
#define zdr_callmsg libnfs_zdr_callmsg
bool_t libnfs_zdr_callmsg(ZDR *zdrs, struct rpc_msg *msg);
#define zdr_replymsg libnfs_zdr_replymsg
bool_t libnfs_zdr_replymsg(ZDR *zdrs, struct rpc_msg *msg);
#define authnone_create libnfs_authnone_create
struct AUTH *libnfs_authnone_create(void);
#define authunix_create libnfs_authunix_create
struct AUTH *libnfs_authunix_create(char *host, uint32_t uid, uint32_t gid, uint32_t len, uint32_t *groups);
#define authunix_create_default libnfs_authunix_create_default
struct AUTH *libnfs_authunix_create_default(void);
#define auth_destroy libnfs_auth_destroy
void libnfs_auth_destroy(struct AUTH *auth);
#endif