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ee872606 RRS |
1 | /* |
2 | Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com> | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2.1 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License | |
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | /* | |
18 | * This file contains definitions for the built in ZDR implementation. | |
19 | * This is a very limited ZDR subset that can only marshal to/from a momory buffer, | |
20 | * i.e. zdrmem_create() buffers. | |
21 | * It aims to be compatible with normal rpcgen generated functions. | |
22 | */ | |
23 | ||
24 | /************************************************************ | |
25 | * Definitions copied from RFC 5531 | |
26 | * and slightly modified. | |
27 | ************************************************************/ | |
28 | ||
29 | #ifndef _LIBNFS_ZDR_H_ | |
30 | #define _LIBNFS_ZDR_H_ | |
31 | ||
32 | #ifdef WIN32 | |
33 | #ifndef CADDR_T_DEFINED | |
34 | #define CADDR_T_DEFINED | |
35 | typedef char *caddr_t; | |
36 | #endif | |
37 | #endif | |
38 | ||
39 | #include <stdio.h> | |
40 | #include <assert.h> | |
41 | #include <stdint.h> | |
42 | #include <sys/types.h> | |
43 | ||
44 | #ifdef __cplusplus | |
45 | extern "C" { | |
46 | #endif | |
47 | ||
48 | #define _RPC_RPC_H 1 | |
49 | #define _RPC_ZDR_H 1 | |
50 | #define _RPC_AUTH_H 1 | |
51 | ||
52 | /* we dont need these */ | |
53 | typedef void CLIENT; | |
54 | struct svc_req { | |
55 | int _dummy_; | |
56 | }; | |
57 | typedef void SVCXPRT; | |
58 | ||
59 | ||
60 | ||
61 | ||
62 | ||
63 | #define ZDR_INLINE(...) NULL | |
64 | #define IZDR_PUT_U_LONG(...) assert(0) | |
65 | #define IZDR_GET_U_LONG(...) (assert(0), 0) | |
66 | #define IZDR_PUT_LONG(...) assert(0) | |
67 | #define IZDR_GET_LONG(...) (assert(0), 0) | |
68 | #define IZDR_PUT_BOOL(...) assert(0) | |
69 | #define IZDR_GET_BOOL(...) (assert(0), 0) | |
70 | ||
71 | #ifndef TRUE | |
72 | #define TRUE 1 | |
73 | #endif | |
74 | #ifndef FALSE | |
75 | #define FALSE 0 | |
76 | #endif | |
77 | ||
78 | enum zdr_op { | |
79 | ZDR_ENCODE = 0, | |
80 | ZDR_DECODE = 1 | |
81 | }; | |
82 | ||
83 | struct zdr_mem { | |
84 | struct zdr_mem *next; | |
85 | caddr_t buf; | |
86 | uint32_t size; | |
87 | }; | |
88 | ||
89 | struct ZDR { | |
90 | enum zdr_op x_op; | |
91 | caddr_t buf; | |
92 | int size; | |
93 | int pos; | |
94 | struct zdr_mem *mem; | |
95 | }; | |
96 | typedef struct ZDR ZDR; | |
97 | ||
98 | ||
99 | typedef uint32_t u_int; | |
100 | typedef uint32_t enum_t; | |
101 | typedef uint32_t bool_t; | |
102 | ||
103 | typedef int (*zdrproc_t) (ZDR *, void *,...); | |
104 | ||
105 | #define AUTH_NONE 0 | |
106 | #define AUTH_NULL 0 | |
107 | #define AUTH_UNIX 1 | |
108 | ||
109 | struct opaque_auth { | |
110 | uint32_t oa_flavor; | |
111 | caddr_t oa_base; | |
112 | uint32_t oa_length; | |
113 | }; | |
114 | extern struct opaque_auth _null_auth; | |
115 | ||
116 | struct AUTH { | |
117 | struct opaque_auth ah_cred; | |
118 | struct opaque_auth ah_verf; | |
119 | caddr_t ah_private; | |
120 | }; | |
121 | ||
122 | #define RPC_MSG_VERSION 2 | |
123 | ||
124 | enum msg_type { | |
125 | CALL = 0, | |
126 | REPLY = 1 | |
127 | }; | |
128 | ||
129 | enum reply_stat { | |
130 | MSG_ACCEPTED=0, | |
131 | MSG_DENIED=1 | |
132 | }; | |
133 | ||
134 | enum accept_stat { | |
135 | SUCCESS = 0, | |
136 | PROG_UNAVAIL = 1, | |
137 | PROG_MISMATCH = 2, | |
138 | PROC_UNAVAIL = 3, | |
139 | GARBAGE_ARGS = 4, | |
140 | SYSTEM_ERR = 5 | |
141 | }; | |
142 | ||
143 | enum reject_stat { | |
144 | RPC_MISMATCH = 0, | |
145 | AUTH_ERROR = 1 | |
146 | }; | |
147 | ||
148 | enum auth_stat { | |
149 | AUTH_OK=0, | |
150 | /* | |
151 | * failed at remote end | |
152 | */ | |
153 | AUTH_BADCRED = 1, /* bogus credentials (seal broken) */ | |
154 | AUTH_REJECTEDCRED = 2, /* client should begin new session */ | |
155 | AUTH_BADVERF = 3, /* bogus verifier (seal broken) */ | |
156 | AUTH_REJECTEDVERF = 4, /* verifier expired or was replayed */ | |
157 | AUTH_TOOWEAK = 5, /* rejected due to security reasons */ | |
158 | /* | |
159 | * failed locally | |
160 | */ | |
161 | AUTH_INVALIDRESP = 6, /* bogus response verifier */ | |
162 | AUTH_FAILED = 7 /* some unknown reason */ | |
163 | }; | |
164 | ||
165 | struct call_body { | |
166 | uint32_t rpcvers; | |
167 | uint32_t prog; | |
168 | uint32_t vers; | |
169 | uint32_t proc; | |
170 | struct opaque_auth cred; | |
171 | struct opaque_auth verf; | |
172 | }; | |
173 | ||
174 | struct accepted_reply { | |
175 | struct opaque_auth verf; | |
176 | uint32_t stat; | |
177 | union { | |
178 | struct { | |
179 | caddr_t where; | |
180 | zdrproc_t proc; | |
181 | } results; | |
182 | struct { | |
183 | uint32_t low; | |
184 | uint32_t high; | |
185 | } mismatch_info; | |
186 | } reply_data; | |
187 | }; | |
188 | ||
189 | struct rejected_reply { | |
190 | enum reject_stat stat; | |
191 | union { | |
192 | struct { | |
193 | uint32_t low; | |
194 | uint32_t high; | |
195 | } mismatch_info; | |
196 | enum auth_stat stat; | |
197 | } reject_data; | |
198 | }; | |
199 | ||
200 | struct reply_body { | |
201 | uint32_t stat; | |
202 | union { | |
203 | struct accepted_reply areply; | |
204 | struct rejected_reply rreply; | |
205 | } reply; | |
206 | }; | |
207 | ||
208 | struct rpc_msg { | |
209 | uint32_t xid; | |
210 | ||
211 | uint32_t direction; | |
212 | union { | |
213 | struct call_body cbody; | |
214 | struct reply_body rbody; | |
215 | } body; | |
216 | }; | |
217 | ||
218 | #define zdrmem_create libnfs_zdrmem_create | |
219 | void libnfs_zdrmem_create(ZDR *zdrs, const caddr_t addr, uint32_t size, enum zdr_op xop); | |
220 | ||
221 | #define zdr_destroy libnfs_zdr_destroy | |
222 | void libnfs_zdr_destroy(ZDR *zdrs); | |
223 | ||
224 | #define zdr_bytes libnfs_zdr_bytes | |
225 | bool_t libnfs_zdr_bytes(ZDR *zdrs, char **bufp, uint32_t *size, uint32_t maxsize); | |
226 | ||
227 | #define zdr_u_int libnfs_zdr_u_int | |
228 | bool_t libnfs_zdr_u_int(ZDR *zdrs, uint32_t *u); | |
229 | ||
230 | #define zdr_int libnfs_zdr_int | |
231 | bool_t libnfs_zdr_int(ZDR *zdrs, int32_t *i); | |
232 | ||
233 | #define zdr_u_quad_t libnfs_zdr_u_quad_t | |
234 | bool_t libnfs_zdr_u_quad_t(ZDR *zdrs, uint64_t *u); | |
235 | ||
236 | #define zdr_quad_t libnfs_zdr_quad_t | |
237 | bool_t libnfs_zdr_quad_t(ZDR *zdrs, int64_t *i); | |
238 | ||
239 | #define zdr_enum libnfs_zdr_enum | |
240 | bool_t libnfs_zdr_enum(ZDR *zdrs, enum_t *e); | |
241 | ||
242 | #define zdr_bool libnfs_zdr_bool | |
243 | bool_t libnfs_zdr_bool(ZDR *zdrs, bool_t *b); | |
244 | ||
245 | #define zdr_void libnfs_zdr_void | |
246 | bool_t libnfs_zdr_void(void); | |
247 | ||
248 | #define zdr_pointer libnfs_zdr_pointer | |
249 | bool_t libnfs_zdr_pointer(ZDR *zdrs, char **objp, uint32_t size, zdrproc_t proc); | |
250 | ||
251 | #define zdr_opaque libnfs_zdr_opaque | |
252 | bool_t libnfs_zdr_opaque(ZDR *zdrs, char *objp, uint32_t size); | |
253 | ||
254 | #define zdr_string libnfs_zdr_string | |
255 | bool_t libnfs_zdr_string(ZDR *zdrs, char **strp, uint32_t maxsize); | |
256 | ||
257 | #define zdr_array libnfs_zdr_array | |
258 | bool_t libnfs_zdr_array(ZDR *zdrs, char **arrp, uint32_t *size, uint32_t maxsize, uint32_t elsize, zdrproc_t proc); | |
259 | ||
260 | #define zdr_setpos libnfs_zdr_setpos | |
261 | bool_t libnfs_zdr_setpos(ZDR *zdrs, uint32_t pos); | |
262 | ||
263 | #define zdr_getpos libnfs_zdr_getpos | |
264 | uint32_t libnfs_zdr_getpos(ZDR *zdrs); | |
265 | ||
266 | #define zdr_free libnfs_zdr_free | |
267 | void libnfs_zdr_free(zdrproc_t proc, char *objp); | |
268 | ||
269 | struct rpc_context; | |
270 | ||
271 | #define zdr_callmsg libnfs_zdr_callmsg | |
272 | bool_t libnfs_zdr_callmsg(struct rpc_context *rpc, ZDR *zdrs, struct rpc_msg *msg); | |
273 | ||
274 | #define zdr_replymsg libnfs_zdr_replymsg | |
275 | bool_t libnfs_zdr_replymsg(struct rpc_context *rpc, ZDR *zdrs, struct rpc_msg *msg); | |
276 | ||
277 | #define authnone_create libnfs_authnone_create | |
278 | struct AUTH *libnfs_authnone_create(void); | |
279 | ||
280 | #define authunix_create libnfs_authunix_create | |
281 | struct AUTH *libnfs_authunix_create(char *host, uint32_t uid, uint32_t gid, uint32_t len, uint32_t *groups); | |
282 | ||
283 | #define authunix_create_default libnfs_authunix_create_default | |
284 | struct AUTH *libnfs_authunix_create_default(void); | |
285 | ||
286 | #define auth_destroy libnfs_auth_destroy | |
287 | void libnfs_auth_destroy(struct AUTH *auth); | |
288 | ||
289 | #ifdef __cplusplus | |
290 | } | |
291 | #endif | |
292 | ||
293 | #endif |