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763cd6e3 RS |
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 | ||
aab6538b RS |
24 | /************************************************************ |
25 | * Definitions copied from RFC 5531 | |
26 | * and slightly modified. | |
27 | ************************************************************/ | |
28 | ||
763cd6e3 RS |
29 | #ifndef _LIBNFS_ZDR_H_ |
30 | #define _LIBNFS_ZDR_H_ | |
31 | ||
32 | #include <stdio.h> | |
33 | #include <assert.h> | |
34 | #include <stdint.h> | |
35 | #include <sys/types.h> | |
36 | ||
37 | #define _RPC_RPC_H 1 | |
38 | #define _RPC_ZDR_H 1 | |
39 | #define _RPC_AUTH_H 1 | |
40 | ||
41 | /* we dont need these */ | |
42 | typedef void CLIENT; | |
43 | struct svc_req { | |
44 | }; | |
45 | typedef void SVCXPRT; | |
46 | ||
47 | ||
48 | ||
49 | ||
50 | ||
51 | #define ZDR_INLINE(...) NULL | |
52 | #define IZDR_PUT_U_LONG(...) assert(0) | |
53 | #define IZDR_GET_U_LONG(...) (assert(0), 0) | |
54 | #define IZDR_PUT_LONG(...) assert(0) | |
55 | #define IZDR_GET_LONG(...) (assert(0), 0) | |
56 | #define IZDR_PUT_BOOL(...) assert(0) | |
57 | #define IZDR_GET_BOOL(...) (assert(0), 0) | |
58 | ||
d7c6e9aa | 59 | #ifndef TRUE |
763cd6e3 | 60 | #define TRUE 1 |
d7c6e9aa RS |
61 | #endif |
62 | #ifndef FALSE | |
763cd6e3 | 63 | #define FALSE 0 |
d7c6e9aa | 64 | #endif |
763cd6e3 RS |
65 | |
66 | enum zdr_op { | |
67 | ZDR_ENCODE = 0, | |
68 | ZDR_DECODE = 1 | |
69 | }; | |
70 | ||
71 | struct zdr_mem { | |
72 | struct zdr_mem *next; | |
73 | caddr_t buf; | |
74 | uint32_t size; | |
75 | }; | |
76 | ||
77 | struct ZDR { | |
78 | enum zdr_op x_op; | |
79 | caddr_t buf; | |
80 | int size; | |
81 | int pos; | |
82 | struct zdr_mem *mem; | |
83 | }; | |
84 | typedef struct ZDR ZDR; | |
85 | ||
86 | ||
87 | typedef uint32_t u_int; | |
88 | typedef uint32_t enum_t; | |
89 | typedef uint32_t bool_t; | |
90 | ||
91 | typedef int (*zdrproc_t) (ZDR *, void *,...); | |
92 | ||
93 | /* XXX find out what we can get rid of */ | |
94 | ||
95 | #define AUTH_NONE 0 | |
96 | #define AUTH_NULL 0 | |
97 | #define AUTH_UNIX 1 | |
aab6538b | 98 | |
763cd6e3 RS |
99 | struct opaque_auth { |
100 | uint32_t oa_flavor; | |
101 | caddr_t oa_base; | |
102 | uint32_t oa_length; | |
103 | }; | |
104 | extern struct opaque_auth _null_auth; | |
105 | ||
67ba2239 | 106 | struct AUTH { |
763cd6e3 RS |
107 | struct opaque_auth ah_cred; |
108 | struct opaque_auth ah_verf; | |
109 | caddr_t ah_private; | |
67ba2239 | 110 | }; |
763cd6e3 | 111 | |
763cd6e3 RS |
112 | #define RPC_MSG_VERSION 2 |
113 | ||
aab6538b RS |
114 | enum msg_type { |
115 | CALL = 0, | |
116 | REPLY = 1 | |
763cd6e3 RS |
117 | }; |
118 | ||
aab6538b RS |
119 | enum reply_stat { |
120 | MSG_ACCEPTED=0, | |
121 | MSG_DENIED=1 | |
763cd6e3 RS |
122 | }; |
123 | ||
aab6538b RS |
124 | enum accept_stat { |
125 | SUCCESS = 0, | |
126 | PROG_UNAVAIL = 1, | |
127 | PROG_MISMATCH = 2, | |
128 | PROC_UNAVAIL = 3, | |
129 | GARBAGE_ARGS = 4, | |
130 | SYSTEM_ERR = 5 | |
763cd6e3 RS |
131 | }; |
132 | ||
133 | enum reject_stat { | |
aab6538b RS |
134 | RPC_MISMATCH = 0, |
135 | AUTH_ERROR = 1 | |
763cd6e3 RS |
136 | }; |
137 | ||
138 | enum auth_stat { | |
139 | AUTH_OK=0, | |
140 | /* | |
141 | * failed at remote end | |
142 | */ | |
aab6538b RS |
143 | AUTH_BADCRED = 1, /* bogus credentials (seal broken) */ |
144 | AUTH_REJECTEDCRED = 2, /* client should begin new session */ | |
145 | AUTH_BADVERF = 3, /* bogus verifier (seal broken) */ | |
146 | AUTH_REJECTEDVERF = 4, /* verifier expired or was replayed */ | |
147 | AUTH_TOOWEAK = 5, /* rejected due to security reasons */ | |
763cd6e3 RS |
148 | /* |
149 | * failed locally | |
150 | */ | |
aab6538b RS |
151 | AUTH_INVALIDRESP = 6, /* bogus response verifier */ |
152 | AUTH_FAILED = 7 /* some unknown reason */ | |
153 | }; | |
154 | ||
155 | struct call_body { | |
156 | uint32_t rpcvers; | |
157 | uint32_t prog; | |
158 | uint32_t vers; | |
159 | uint32_t proc; | |
160 | struct opaque_auth cred; | |
161 | struct opaque_auth verf; | |
162 | }; | |
163 | ||
164 | struct accepted_reply { | |
165 | struct opaque_auth verf; | |
166 | uint32_t stat; | |
167 | union { | |
168 | struct { | |
169 | caddr_t where; | |
170 | zdrproc_t proc; | |
171 | } results; | |
172 | struct { | |
173 | uint32_t low; | |
174 | uint32_t high; | |
175 | } mismatch_info; | |
176 | } reply_data; | |
763cd6e3 RS |
177 | }; |
178 | ||
179 | struct rejected_reply { | |
aab6538b | 180 | enum reject_stat stat; |
763cd6e3 RS |
181 | union { |
182 | struct { | |
d7c6e9aa RS |
183 | uint32_t low; |
184 | uint32_t high; | |
aab6538b RS |
185 | } mismatch_info; |
186 | enum auth_stat stat; | |
187 | } reject_data; | |
763cd6e3 RS |
188 | }; |
189 | ||
763cd6e3 | 190 | struct reply_body { |
aab6538b | 191 | uint32_t stat; |
763cd6e3 | 192 | union { |
aab6538b RS |
193 | struct accepted_reply areply; |
194 | struct rejected_reply rreply; | |
195 | } reply; | |
763cd6e3 RS |
196 | }; |
197 | ||
198 | struct rpc_msg { | |
aab6538b | 199 | uint32_t xid; |
763cd6e3 | 200 | |
aab6538b | 201 | uint32_t direction; |
763cd6e3 | 202 | union { |
aab6538b RS |
203 | struct call_body cbody; |
204 | struct reply_body rbody; | |
205 | } body; | |
763cd6e3 | 206 | }; |
763cd6e3 RS |
207 | |
208 | #define zdrmem_create libnfs_zdrmem_create | |
209 | void libnfs_zdrmem_create(ZDR *zdrs, const caddr_t addr, uint32_t size, enum zdr_op xop); | |
210 | ||
211 | #define zdr_destroy libnfs_zdr_destroy | |
212 | void libnfs_zdr_destroy(ZDR *zdrs); | |
213 | ||
214 | #define zdr_bytes libnfs_zdr_bytes | |
215 | bool_t libnfs_zdr_bytes(ZDR *zdrs, char **bufp, uint32_t *size, uint32_t maxsize); | |
216 | ||
217 | #define zdr_u_int libnfs_zdr_u_int | |
218 | bool_t libnfs_zdr_u_int(ZDR *zdrs, uint32_t *u); | |
219 | ||
220 | #define zdr_int libnfs_zdr_int | |
221 | bool_t libnfs_zdr_int(ZDR *zdrs, int32_t *i); | |
222 | ||
223 | #define zdr_u_quad_t libnfs_zdr_u_quad_t | |
224 | bool_t libnfs_zdr_u_quad_t(ZDR *zdrs, uint64_t *u); | |
225 | ||
226 | #define zdr_quad_t libnfs_zdr_quad_t | |
227 | bool_t libnfs_zdr_quad_t(ZDR *zdrs, int64_t *i); | |
228 | ||
229 | #define zdr_enum libnfs_zdr_enum | |
442b829a | 230 | bool_t libnfs_zdr_enum(ZDR *zdrs, enum_t *e); |
763cd6e3 RS |
231 | |
232 | #define zdr_bool libnfs_zdr_bool | |
233 | bool_t libnfs_zdr_bool(ZDR *zdrs, bool_t *b); | |
234 | ||
235 | #define zdr_void libnfs_zdr_void | |
236 | bool_t libnfs_zdr_void(void); | |
237 | ||
238 | #define zdr_pointer libnfs_zdr_pointer | |
239 | bool_t libnfs_zdr_pointer(ZDR *zdrs, char **objp, uint32_t size, zdrproc_t proc); | |
240 | ||
241 | #define zdr_opaque libnfs_zdr_opaque | |
242 | bool_t libnfs_zdr_opaque(ZDR *zdrs, char *objp, uint32_t size); | |
243 | ||
244 | #define zdr_string libnfs_zdr_string | |
245 | bool_t libnfs_zdr_string(ZDR *zdrs, char **strp, uint32_t maxsize); | |
246 | ||
247 | #define zdr_array libnfs_zdr_array | |
248 | bool_t libnfs_zdr_array(ZDR *zdrs, char **arrp, uint32_t *size, uint32_t maxsize, uint32_t elsize, zdrproc_t proc); | |
249 | ||
250 | #define zdr_setpos libnfs_zdr_setpos | |
251 | bool_t libnfs_zdr_setpos(ZDR *zdrs, uint32_t pos); | |
252 | ||
253 | #define zdr_getpos libnfs_zdr_getpos | |
254 | uint32_t libnfs_zdr_getpos(ZDR *zdrs); | |
255 | ||
256 | #define zdr_free libnfs_zdr_free | |
257 | void libnfs_zdr_free(zdrproc_t proc, char *objp); | |
258 | ||
259 | #define zdr_callmsg libnfs_zdr_callmsg | |
260 | bool_t libnfs_zdr_callmsg(ZDR *zdrs, struct rpc_msg *msg); | |
261 | ||
262 | #define zdr_replymsg libnfs_zdr_replymsg | |
263 | bool_t libnfs_zdr_replymsg(ZDR *zdrs, struct rpc_msg *msg); | |
264 | ||
265 | #define authnone_create libnfs_authnone_create | |
67ba2239 | 266 | struct AUTH *libnfs_authnone_create(void); |
763cd6e3 RS |
267 | |
268 | #define authunix_create libnfs_authunix_create | |
67ba2239 | 269 | struct AUTH *libnfs_authunix_create(char *host, uint32_t uid, uint32_t gid, uint32_t len, uint32_t *groups); |
763cd6e3 RS |
270 | |
271 | #define authunix_create_default libnfs_authunix_create_default | |
67ba2239 | 272 | struct AUTH *libnfs_authunix_create_default(void); |
763cd6e3 RS |
273 | |
274 | #define auth_destroy libnfs_auth_destroy | |
67ba2239 | 275 | void libnfs_auth_destroy(struct AUTH *auth); |
763cd6e3 RS |
276 | |
277 | #endif |