Commit | Line | Data |
---|---|---|
b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1c6dcbe5 AS |
2 | /* |
3 | * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com> | |
4 | */ | |
5 | #ifndef __LINUX_FS_NFS_NFS4_2XDR_H | |
6 | #define __LINUX_FS_NFS_NFS4_2XDR_H | |
7 | ||
be3a5d23 TM |
8 | #include "nfs42.h" |
9 | ||
f4ac1674 AS |
10 | #define encode_fallocate_maxsz (encode_stateid_maxsz + \ |
11 | 2 /* offset */ + \ | |
12 | 2 /* length */) | |
2e72448b AS |
13 | #define NFS42_WRITE_RES_SIZE (1 /* wr_callback_id size */ +\ |
14 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ | |
15 | 2 /* wr_count */ + \ | |
16 | 1 /* wr_committed */ + \ | |
17 | XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
f4ac1674 AS |
18 | #define encode_allocate_maxsz (op_encode_hdr_maxsz + \ |
19 | encode_fallocate_maxsz) | |
20 | #define decode_allocate_maxsz (op_decode_hdr_maxsz) | |
2e72448b AS |
21 | #define encode_copy_maxsz (op_encode_hdr_maxsz + \ |
22 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ | |
23 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ | |
1d38f3f0 OK |
24 | 2 + 2 + 2 + 1 + 1 + 1 +\ |
25 | 1 + /* One cnr_source_server */\ | |
26 | 1 + /* nl4_type */ \ | |
27 | 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) | |
2e72448b AS |
28 | #define decode_copy_maxsz (op_decode_hdr_maxsz + \ |
29 | NFS42_WRITE_RES_SIZE + \ | |
30 | 1 /* cr_consecutive */ + \ | |
31 | 1 /* cr_synchronous */) | |
cb95deea OK |
32 | #define encode_offload_cancel_maxsz (op_encode_hdr_maxsz + \ |
33 | XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
34 | #define decode_offload_cancel_maxsz (op_decode_hdr_maxsz) | |
0491567b OK |
35 | #define encode_copy_notify_maxsz (op_encode_hdr_maxsz + \ |
36 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ | |
37 | 1 + /* nl4_type */ \ | |
38 | 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) | |
39 | #define decode_copy_notify_maxsz (op_decode_hdr_maxsz + \ | |
40 | 3 + /* cnr_lease_time */\ | |
41 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ | |
42 | 1 + /* Support 1 cnr_source_server */\ | |
43 | 1 + /* nl4_type */ \ | |
44 | 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) | |
624bd5b7 AS |
45 | #define encode_deallocate_maxsz (op_encode_hdr_maxsz + \ |
46 | encode_fallocate_maxsz) | |
47 | #define decode_deallocate_maxsz (op_decode_hdr_maxsz) | |
c5675526 AS |
48 | #define encode_read_plus_maxsz (op_encode_hdr_maxsz + \ |
49 | encode_stateid_maxsz + 3) | |
50 | #define NFS42_READ_PLUS_SEGMENT_SIZE (1 /* data_content4 */ + \ | |
51 | 2 /* data_info4.di_offset */ + \ | |
52 | 2 /* data_info4.di_length */) | |
53 | #define decode_read_plus_maxsz (op_decode_hdr_maxsz + \ | |
54 | 1 /* rpr_eof */ + \ | |
55 | 1 /* rpr_contents count */ + \ | |
c05eafad | 56 | 2 * NFS42_READ_PLUS_SEGMENT_SIZE) |
1c6dcbe5 AS |
57 | #define encode_seek_maxsz (op_encode_hdr_maxsz + \ |
58 | encode_stateid_maxsz + \ | |
59 | 2 /* offset */ + \ | |
60 | 1 /* whence */) | |
61 | #define decode_seek_maxsz (op_decode_hdr_maxsz + \ | |
62 | 1 /* eof */ + \ | |
63 | 1 /* whence */ + \ | |
64 | 2 /* offset */ + \ | |
65 | 2 /* length */) | |
be3a5d23 TM |
66 | #define encode_io_info_maxsz 4 |
67 | #define encode_layoutstats_maxsz (op_decode_hdr_maxsz + \ | |
68 | 2 /* offset */ + \ | |
69 | 2 /* length */ + \ | |
70 | encode_stateid_maxsz + \ | |
71 | encode_io_info_maxsz + \ | |
72 | encode_io_info_maxsz + \ | |
73 | 1 /* opaque devaddr4 length */ + \ | |
74 | XDR_QUADLEN(PNFS_LAYOUTSTATS_MAXSIZE)) | |
75 | #define decode_layoutstats_maxsz (op_decode_hdr_maxsz) | |
3eb86093 TM |
76 | #define encode_device_error_maxsz (XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ |
77 | 1 /* status */ + 1 /* opnum */) | |
78 | #define encode_layouterror_maxsz (op_decode_hdr_maxsz + \ | |
79 | 2 /* offset */ + \ | |
80 | 2 /* length */ + \ | |
81 | encode_stateid_maxsz + \ | |
82 | 1 /* Array size */ + \ | |
83 | encode_device_error_maxsz) | |
84 | #define decode_layouterror_maxsz (op_decode_hdr_maxsz) | |
36022770 PT |
85 | #define encode_clone_maxsz (encode_stateid_maxsz + \ |
86 | encode_stateid_maxsz + \ | |
87 | 2 /* src offset */ + \ | |
88 | 2 /* dst offset */ + \ | |
89 | 2 /* count */) | |
90 | #define decode_clone_maxsz (op_decode_hdr_maxsz) | |
1c6dcbe5 | 91 | |
f4ac1674 | 92 | #define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \ |
1a3466ae | 93 | encode_sequence_maxsz + \ |
f4ac1674 | 94 | encode_putfh_maxsz + \ |
9a51940b AS |
95 | encode_allocate_maxsz + \ |
96 | encode_getattr_maxsz) | |
f4ac1674 | 97 | #define NFS4_dec_allocate_sz (compound_decode_hdr_maxsz + \ |
1a3466ae | 98 | decode_sequence_maxsz + \ |
f4ac1674 | 99 | decode_putfh_maxsz + \ |
9a51940b AS |
100 | decode_allocate_maxsz + \ |
101 | decode_getattr_maxsz) | |
2e72448b | 102 | #define NFS4_enc_copy_sz (compound_encode_hdr_maxsz + \ |
1a3466ae | 103 | encode_sequence_maxsz + \ |
2e72448b AS |
104 | encode_putfh_maxsz + \ |
105 | encode_savefh_maxsz + \ | |
106 | encode_putfh_maxsz + \ | |
e0926934 OK |
107 | encode_copy_maxsz + \ |
108 | encode_commit_maxsz) | |
2e72448b | 109 | #define NFS4_dec_copy_sz (compound_decode_hdr_maxsz + \ |
1a3466ae | 110 | decode_sequence_maxsz + \ |
2e72448b AS |
111 | decode_putfh_maxsz + \ |
112 | decode_savefh_maxsz + \ | |
113 | decode_putfh_maxsz + \ | |
e0926934 OK |
114 | decode_copy_maxsz + \ |
115 | decode_commit_maxsz) | |
cb95deea | 116 | #define NFS4_enc_offload_cancel_sz (compound_encode_hdr_maxsz + \ |
1a3466ae | 117 | encode_sequence_maxsz + \ |
cb95deea OK |
118 | encode_putfh_maxsz + \ |
119 | encode_offload_cancel_maxsz) | |
120 | #define NFS4_dec_offload_cancel_sz (compound_decode_hdr_maxsz + \ | |
1a3466ae | 121 | decode_sequence_maxsz + \ |
cb95deea OK |
122 | decode_putfh_maxsz + \ |
123 | decode_offload_cancel_maxsz) | |
0491567b OK |
124 | #define NFS4_enc_copy_notify_sz (compound_encode_hdr_maxsz + \ |
125 | encode_putfh_maxsz + \ | |
126 | encode_copy_notify_maxsz) | |
127 | #define NFS4_dec_copy_notify_sz (compound_decode_hdr_maxsz + \ | |
128 | decode_putfh_maxsz + \ | |
129 | decode_copy_notify_maxsz) | |
624bd5b7 | 130 | #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \ |
1a3466ae | 131 | encode_sequence_maxsz + \ |
624bd5b7 | 132 | encode_putfh_maxsz + \ |
9a51940b AS |
133 | encode_deallocate_maxsz + \ |
134 | encode_getattr_maxsz) | |
624bd5b7 | 135 | #define NFS4_dec_deallocate_sz (compound_decode_hdr_maxsz + \ |
1a3466ae | 136 | decode_sequence_maxsz + \ |
624bd5b7 | 137 | decode_putfh_maxsz + \ |
9a51940b AS |
138 | decode_deallocate_maxsz + \ |
139 | decode_getattr_maxsz) | |
c5675526 AS |
140 | #define NFS4_enc_read_plus_sz (compound_encode_hdr_maxsz + \ |
141 | encode_sequence_maxsz + \ | |
142 | encode_putfh_maxsz + \ | |
143 | encode_read_plus_maxsz) | |
144 | #define NFS4_dec_read_plus_sz (compound_decode_hdr_maxsz + \ | |
145 | decode_sequence_maxsz + \ | |
146 | decode_putfh_maxsz + \ | |
147 | decode_read_plus_maxsz) | |
1c6dcbe5 | 148 | #define NFS4_enc_seek_sz (compound_encode_hdr_maxsz + \ |
1a3466ae | 149 | encode_sequence_maxsz + \ |
1c6dcbe5 AS |
150 | encode_putfh_maxsz + \ |
151 | encode_seek_maxsz) | |
152 | #define NFS4_dec_seek_sz (compound_decode_hdr_maxsz + \ | |
1a3466ae | 153 | decode_sequence_maxsz + \ |
1c6dcbe5 AS |
154 | decode_putfh_maxsz + \ |
155 | decode_seek_maxsz) | |
be3a5d23 TM |
156 | #define NFS4_enc_layoutstats_sz (compound_encode_hdr_maxsz + \ |
157 | encode_sequence_maxsz + \ | |
158 | encode_putfh_maxsz + \ | |
159 | PNFS_LAYOUTSTATS_MAXDEV * encode_layoutstats_maxsz) | |
160 | #define NFS4_dec_layoutstats_sz (compound_decode_hdr_maxsz + \ | |
161 | decode_sequence_maxsz + \ | |
162 | decode_putfh_maxsz + \ | |
163 | PNFS_LAYOUTSTATS_MAXDEV * decode_layoutstats_maxsz) | |
3eb86093 TM |
164 | #define NFS4_enc_layouterror_sz (compound_encode_hdr_maxsz + \ |
165 | encode_sequence_maxsz + \ | |
166 | encode_putfh_maxsz + \ | |
167 | NFS42_LAYOUTERROR_MAX * \ | |
168 | encode_layouterror_maxsz) | |
169 | #define NFS4_dec_layouterror_sz (compound_decode_hdr_maxsz + \ | |
170 | decode_sequence_maxsz + \ | |
171 | decode_putfh_maxsz + \ | |
172 | NFS42_LAYOUTERROR_MAX * \ | |
173 | decode_layouterror_maxsz) | |
36022770 PT |
174 | #define NFS4_enc_clone_sz (compound_encode_hdr_maxsz + \ |
175 | encode_sequence_maxsz + \ | |
176 | encode_putfh_maxsz + \ | |
177 | encode_savefh_maxsz + \ | |
178 | encode_putfh_maxsz + \ | |
179 | encode_clone_maxsz + \ | |
180 | encode_getattr_maxsz) | |
181 | #define NFS4_dec_clone_sz (compound_decode_hdr_maxsz + \ | |
182 | decode_sequence_maxsz + \ | |
183 | decode_putfh_maxsz + \ | |
184 | decode_savefh_maxsz + \ | |
185 | decode_putfh_maxsz + \ | |
186 | decode_clone_maxsz + \ | |
187 | decode_getattr_maxsz) | |
1c6dcbe5 | 188 | |
04a5da69 FL |
189 | /* Not limited by NFS itself, limited by the generic xattr code */ |
190 | #define nfs4_xattr_name_maxsz XDR_QUADLEN(XATTR_NAME_MAX) | |
191 | ||
192 | #define encode_getxattr_maxsz (op_encode_hdr_maxsz + 1 + \ | |
193 | nfs4_xattr_name_maxsz) | |
fa94a951 | 194 | #define decode_getxattr_maxsz (op_decode_hdr_maxsz + 1 + pagepad_maxsz) |
04a5da69 FL |
195 | #define encode_setxattr_maxsz (op_encode_hdr_maxsz + \ |
196 | 1 + nfs4_xattr_name_maxsz + 1) | |
197 | #define decode_setxattr_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) | |
198 | #define encode_listxattrs_maxsz (op_encode_hdr_maxsz + 2 + 1) | |
6c2190b3 | 199 | #define decode_listxattrs_maxsz (op_decode_hdr_maxsz + 2 + 1 + 1 + 1) |
04a5da69 FL |
200 | #define encode_removexattr_maxsz (op_encode_hdr_maxsz + 1 + \ |
201 | nfs4_xattr_name_maxsz) | |
202 | #define decode_removexattr_maxsz (op_decode_hdr_maxsz + \ | |
203 | decode_change_info_maxsz) | |
204 | ||
205 | #define NFS4_enc_getxattr_sz (compound_encode_hdr_maxsz + \ | |
206 | encode_sequence_maxsz + \ | |
207 | encode_putfh_maxsz + \ | |
208 | encode_getxattr_maxsz) | |
209 | #define NFS4_dec_getxattr_sz (compound_decode_hdr_maxsz + \ | |
210 | decode_sequence_maxsz + \ | |
211 | decode_putfh_maxsz + \ | |
212 | decode_getxattr_maxsz) | |
213 | #define NFS4_enc_setxattr_sz (compound_encode_hdr_maxsz + \ | |
214 | encode_sequence_maxsz + \ | |
215 | encode_putfh_maxsz + \ | |
216 | encode_setxattr_maxsz) | |
217 | #define NFS4_dec_setxattr_sz (compound_decode_hdr_maxsz + \ | |
218 | decode_sequence_maxsz + \ | |
219 | decode_putfh_maxsz + \ | |
220 | decode_setxattr_maxsz) | |
221 | #define NFS4_enc_listxattrs_sz (compound_encode_hdr_maxsz + \ | |
222 | encode_sequence_maxsz + \ | |
223 | encode_putfh_maxsz + \ | |
224 | encode_listxattrs_maxsz) | |
225 | #define NFS4_dec_listxattrs_sz (compound_decode_hdr_maxsz + \ | |
226 | decode_sequence_maxsz + \ | |
227 | decode_putfh_maxsz + \ | |
228 | decode_listxattrs_maxsz) | |
229 | #define NFS4_enc_removexattr_sz (compound_encode_hdr_maxsz + \ | |
230 | encode_sequence_maxsz + \ | |
231 | encode_putfh_maxsz + \ | |
232 | encode_removexattr_maxsz) | |
233 | #define NFS4_dec_removexattr_sz (compound_decode_hdr_maxsz + \ | |
234 | decode_sequence_maxsz + \ | |
235 | decode_putfh_maxsz + \ | |
236 | decode_removexattr_maxsz) | |
237 | ||
238 | /* | |
239 | * These values specify the maximum amount of data that is not | |
240 | * associated with the extended attribute name or extended | |
241 | * attribute list in the SETXATTR, GETXATTR and LISTXATTR | |
242 | * respectively. | |
243 | */ | |
244 | const u32 nfs42_maxsetxattr_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
245 | compound_encode_hdr_maxsz + | |
246 | encode_sequence_maxsz + | |
247 | encode_putfh_maxsz + 1 + | |
248 | nfs4_xattr_name_maxsz) | |
249 | * XDR_UNIT); | |
250 | ||
251 | const u32 nfs42_maxgetxattr_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
252 | compound_decode_hdr_maxsz + | |
253 | decode_sequence_maxsz + | |
254 | decode_putfh_maxsz + 1) * XDR_UNIT); | |
255 | ||
256 | const u32 nfs42_maxlistxattrs_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
257 | compound_decode_hdr_maxsz + | |
258 | decode_sequence_maxsz + | |
259 | decode_putfh_maxsz + 3) * XDR_UNIT); | |
04a5da69 | 260 | |
f4ac1674 | 261 | static void encode_fallocate(struct xdr_stream *xdr, |
0096d39b | 262 | const struct nfs42_falloc_args *args) |
f4ac1674 AS |
263 | { |
264 | encode_nfs4_stateid(xdr, &args->falloc_stateid); | |
265 | encode_uint64(xdr, args->falloc_offset); | |
266 | encode_uint64(xdr, args->falloc_length); | |
267 | } | |
268 | ||
269 | static void encode_allocate(struct xdr_stream *xdr, | |
0096d39b | 270 | const struct nfs42_falloc_args *args, |
f4ac1674 AS |
271 | struct compound_hdr *hdr) |
272 | { | |
273 | encode_op_hdr(xdr, OP_ALLOCATE, decode_allocate_maxsz, hdr); | |
274 | encode_fallocate(xdr, args); | |
275 | } | |
276 | ||
0491567b OK |
277 | static void encode_nl4_server(struct xdr_stream *xdr, |
278 | const struct nl4_server *ns) | |
279 | { | |
280 | encode_uint32(xdr, ns->nl4_type); | |
281 | switch (ns->nl4_type) { | |
282 | case NL4_NAME: | |
283 | case NL4_URL: | |
284 | encode_string(xdr, ns->u.nl4_str_sz, ns->u.nl4_str); | |
285 | break; | |
286 | case NL4_NETADDR: | |
287 | encode_string(xdr, ns->u.nl4_addr.netid_len, | |
288 | ns->u.nl4_addr.netid); | |
289 | encode_string(xdr, ns->u.nl4_addr.addr_len, | |
290 | ns->u.nl4_addr.addr); | |
291 | break; | |
292 | default: | |
293 | WARN_ON_ONCE(1); | |
294 | } | |
295 | } | |
296 | ||
2e72448b | 297 | static void encode_copy(struct xdr_stream *xdr, |
0096d39b | 298 | const struct nfs42_copy_args *args, |
2e72448b AS |
299 | struct compound_hdr *hdr) |
300 | { | |
301 | encode_op_hdr(xdr, OP_COPY, decode_copy_maxsz, hdr); | |
302 | encode_nfs4_stateid(xdr, &args->src_stateid); | |
303 | encode_nfs4_stateid(xdr, &args->dst_stateid); | |
304 | ||
305 | encode_uint64(xdr, args->src_pos); | |
306 | encode_uint64(xdr, args->dst_pos); | |
307 | encode_uint64(xdr, args->count); | |
308 | ||
309 | encode_uint32(xdr, 1); /* consecutive = true */ | |
62164f31 | 310 | encode_uint32(xdr, args->sync); |
1d38f3f0 OK |
311 | if (args->cp_src == NULL) { /* intra-ssc */ |
312 | encode_uint32(xdr, 0); /* no src server list */ | |
313 | return; | |
314 | } | |
315 | encode_uint32(xdr, 1); /* supporting 1 server */ | |
316 | encode_nl4_server(xdr, args->cp_src); | |
2e72448b AS |
317 | } |
318 | ||
cb95deea OK |
319 | static void encode_offload_cancel(struct xdr_stream *xdr, |
320 | const struct nfs42_offload_status_args *args, | |
321 | struct compound_hdr *hdr) | |
322 | { | |
323 | encode_op_hdr(xdr, OP_OFFLOAD_CANCEL, decode_offload_cancel_maxsz, hdr); | |
324 | encode_nfs4_stateid(xdr, &args->osa_stateid); | |
325 | } | |
326 | ||
0491567b OK |
327 | static void encode_copy_notify(struct xdr_stream *xdr, |
328 | const struct nfs42_copy_notify_args *args, | |
329 | struct compound_hdr *hdr) | |
330 | { | |
331 | encode_op_hdr(xdr, OP_COPY_NOTIFY, decode_copy_notify_maxsz, hdr); | |
332 | encode_nfs4_stateid(xdr, &args->cna_src_stateid); | |
333 | encode_nl4_server(xdr, &args->cna_dst); | |
334 | } | |
335 | ||
624bd5b7 | 336 | static void encode_deallocate(struct xdr_stream *xdr, |
0096d39b | 337 | const struct nfs42_falloc_args *args, |
624bd5b7 AS |
338 | struct compound_hdr *hdr) |
339 | { | |
340 | encode_op_hdr(xdr, OP_DEALLOCATE, decode_deallocate_maxsz, hdr); | |
341 | encode_fallocate(xdr, args); | |
342 | } | |
343 | ||
c5675526 AS |
344 | static void encode_read_plus(struct xdr_stream *xdr, |
345 | const struct nfs_pgio_args *args, | |
346 | struct compound_hdr *hdr) | |
347 | { | |
348 | encode_op_hdr(xdr, OP_READ_PLUS, decode_read_plus_maxsz, hdr); | |
349 | encode_nfs4_stateid(xdr, &args->stateid); | |
350 | encode_uint64(xdr, args->offset); | |
351 | encode_uint32(xdr, args->count); | |
352 | } | |
353 | ||
1c6dcbe5 | 354 | static void encode_seek(struct xdr_stream *xdr, |
0096d39b | 355 | const struct nfs42_seek_args *args, |
1c6dcbe5 AS |
356 | struct compound_hdr *hdr) |
357 | { | |
358 | encode_op_hdr(xdr, OP_SEEK, decode_seek_maxsz, hdr); | |
359 | encode_nfs4_stateid(xdr, &args->sa_stateid); | |
360 | encode_uint64(xdr, args->sa_offset); | |
361 | encode_uint32(xdr, args->sa_what); | |
362 | } | |
363 | ||
be3a5d23 | 364 | static void encode_layoutstats(struct xdr_stream *xdr, |
0096d39b | 365 | const struct nfs42_layoutstat_args *args, |
be3a5d23 TM |
366 | struct nfs42_layoutstat_devinfo *devinfo, |
367 | struct compound_hdr *hdr) | |
368 | { | |
369 | __be32 *p; | |
370 | ||
371 | encode_op_hdr(xdr, OP_LAYOUTSTATS, decode_layoutstats_maxsz, hdr); | |
372 | p = reserve_space(xdr, 8 + 8); | |
373 | p = xdr_encode_hyper(p, devinfo->offset); | |
374 | p = xdr_encode_hyper(p, devinfo->length); | |
375 | encode_nfs4_stateid(xdr, &args->stateid); | |
376 | p = reserve_space(xdr, 4*8 + NFS4_DEVICEID4_SIZE + 4); | |
377 | p = xdr_encode_hyper(p, devinfo->read_count); | |
378 | p = xdr_encode_hyper(p, devinfo->read_bytes); | |
379 | p = xdr_encode_hyper(p, devinfo->write_count); | |
380 | p = xdr_encode_hyper(p, devinfo->write_bytes); | |
381 | p = xdr_encode_opaque_fixed(p, devinfo->dev_id.data, | |
382 | NFS4_DEVICEID4_SIZE); | |
383 | /* Encode layoutupdate4 */ | |
384 | *p++ = cpu_to_be32(devinfo->layout_type); | |
422c93c8 TM |
385 | if (devinfo->ld_private.ops) |
386 | devinfo->ld_private.ops->encode(xdr, args, | |
387 | &devinfo->ld_private); | |
be3a5d23 TM |
388 | else |
389 | encode_uint32(xdr, 0); | |
390 | } | |
391 | ||
36022770 | 392 | static void encode_clone(struct xdr_stream *xdr, |
0096d39b | 393 | const struct nfs42_clone_args *args, |
36022770 PT |
394 | struct compound_hdr *hdr) |
395 | { | |
396 | __be32 *p; | |
397 | ||
398 | encode_op_hdr(xdr, OP_CLONE, decode_clone_maxsz, hdr); | |
399 | encode_nfs4_stateid(xdr, &args->src_stateid); | |
400 | encode_nfs4_stateid(xdr, &args->dst_stateid); | |
401 | p = reserve_space(xdr, 3*8); | |
402 | p = xdr_encode_hyper(p, args->src_offset); | |
403 | p = xdr_encode_hyper(p, args->dst_offset); | |
404 | xdr_encode_hyper(p, args->count); | |
405 | } | |
406 | ||
3eb86093 TM |
407 | static void encode_device_error(struct xdr_stream *xdr, |
408 | const struct nfs42_device_error *error) | |
409 | { | |
410 | __be32 *p; | |
411 | ||
412 | p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 2*4); | |
413 | p = xdr_encode_opaque_fixed(p, error->dev_id.data, | |
414 | NFS4_DEVICEID4_SIZE); | |
415 | *p++ = cpu_to_be32(error->status); | |
416 | *p = cpu_to_be32(error->opnum); | |
417 | } | |
418 | ||
419 | static void encode_layouterror(struct xdr_stream *xdr, | |
420 | const struct nfs42_layout_error *args, | |
421 | struct compound_hdr *hdr) | |
422 | { | |
423 | __be32 *p; | |
424 | ||
425 | encode_op_hdr(xdr, OP_LAYOUTERROR, decode_layouterror_maxsz, hdr); | |
426 | p = reserve_space(xdr, 8 + 8); | |
427 | p = xdr_encode_hyper(p, args->offset); | |
428 | p = xdr_encode_hyper(p, args->length); | |
429 | encode_nfs4_stateid(xdr, &args->stateid); | |
430 | p = reserve_space(xdr, 4); | |
431 | *p = cpu_to_be32(1); | |
432 | encode_device_error(xdr, &args->errors[0]); | |
433 | } | |
434 | ||
3e1f0212 FL |
435 | static void encode_setxattr(struct xdr_stream *xdr, |
436 | const struct nfs42_setxattrargs *arg, | |
437 | struct compound_hdr *hdr) | |
438 | { | |
439 | __be32 *p; | |
440 | ||
441 | BUILD_BUG_ON(XATTR_CREATE != SETXATTR4_CREATE); | |
442 | BUILD_BUG_ON(XATTR_REPLACE != SETXATTR4_REPLACE); | |
443 | ||
444 | encode_op_hdr(xdr, OP_SETXATTR, decode_setxattr_maxsz, hdr); | |
445 | p = reserve_space(xdr, 4); | |
446 | *p = cpu_to_be32(arg->xattr_flags); | |
447 | encode_string(xdr, strlen(arg->xattr_name), arg->xattr_name); | |
448 | p = reserve_space(xdr, 4); | |
449 | *p = cpu_to_be32(arg->xattr_len); | |
450 | if (arg->xattr_len) | |
451 | xdr_write_pages(xdr, arg->xattr_pages, 0, arg->xattr_len); | |
452 | } | |
453 | ||
454 | static int decode_setxattr(struct xdr_stream *xdr, | |
455 | struct nfs4_change_info *cinfo) | |
456 | { | |
457 | int status; | |
458 | ||
459 | status = decode_op_hdr(xdr, OP_SETXATTR); | |
460 | if (status) | |
461 | goto out; | |
462 | status = decode_change_info(xdr, cinfo); | |
463 | out: | |
464 | return status; | |
465 | } | |
466 | ||
467 | ||
468 | static void encode_getxattr(struct xdr_stream *xdr, const char *name, | |
469 | struct compound_hdr *hdr) | |
470 | { | |
471 | encode_op_hdr(xdr, OP_GETXATTR, decode_getxattr_maxsz, hdr); | |
472 | encode_string(xdr, strlen(name), name); | |
473 | } | |
474 | ||
475 | static int decode_getxattr(struct xdr_stream *xdr, | |
476 | struct nfs42_getxattrres *res, | |
477 | struct rpc_rqst *req) | |
478 | { | |
479 | int status; | |
480 | __be32 *p; | |
481 | u32 len, rdlen; | |
482 | ||
483 | status = decode_op_hdr(xdr, OP_GETXATTR); | |
484 | if (status) | |
485 | return status; | |
486 | ||
487 | p = xdr_inline_decode(xdr, 4); | |
488 | if (unlikely(!p)) | |
489 | return -EIO; | |
490 | ||
491 | len = be32_to_cpup(p); | |
a1f26739 FL |
492 | |
493 | /* | |
494 | * Only check against the page length here. The actual | |
495 | * requested length may be smaller, but that is only | |
496 | * checked against after possibly caching a valid reply. | |
497 | */ | |
3e1f0212 FL |
498 | if (len > req->rq_rcv_buf.page_len) |
499 | return -ERANGE; | |
500 | ||
501 | res->xattr_len = len; | |
502 | ||
503 | if (len > 0) { | |
504 | rdlen = xdr_read_pages(xdr, len); | |
505 | if (rdlen < len) | |
506 | return -EIO; | |
507 | } | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
512 | static void encode_removexattr(struct xdr_stream *xdr, const char *name, | |
513 | struct compound_hdr *hdr) | |
514 | { | |
515 | encode_op_hdr(xdr, OP_REMOVEXATTR, decode_removexattr_maxsz, hdr); | |
516 | encode_string(xdr, strlen(name), name); | |
517 | } | |
518 | ||
519 | ||
520 | static int decode_removexattr(struct xdr_stream *xdr, | |
521 | struct nfs4_change_info *cinfo) | |
522 | { | |
523 | int status; | |
524 | ||
525 | status = decode_op_hdr(xdr, OP_REMOVEXATTR); | |
526 | if (status) | |
527 | goto out; | |
528 | ||
529 | status = decode_change_info(xdr, cinfo); | |
530 | out: | |
531 | return status; | |
532 | } | |
533 | ||
534 | static void encode_listxattrs(struct xdr_stream *xdr, | |
535 | const struct nfs42_listxattrsargs *arg, | |
536 | struct compound_hdr *hdr) | |
537 | { | |
538 | __be32 *p; | |
539 | ||
6c2190b3 | 540 | encode_op_hdr(xdr, OP_LISTXATTRS, decode_listxattrs_maxsz, hdr); |
3e1f0212 FL |
541 | |
542 | p = reserve_space(xdr, 12); | |
543 | if (unlikely(!p)) | |
544 | return; | |
545 | ||
546 | p = xdr_encode_hyper(p, arg->cookie); | |
547 | /* | |
548 | * RFC 8276 says to specify the full max length of the LISTXATTRS | |
549 | * XDR reply. Count is set to the XDR length of the names array | |
550 | * plus the EOF marker. So, add the cookie and the names count. | |
551 | */ | |
552 | *p = cpu_to_be32(arg->count + 8 + 4); | |
553 | } | |
554 | ||
555 | static int decode_listxattrs(struct xdr_stream *xdr, | |
556 | struct nfs42_listxattrsres *res) | |
557 | { | |
558 | int status; | |
559 | __be32 *p; | |
560 | u32 count, len, ulen; | |
561 | size_t left, copied; | |
562 | char *buf; | |
563 | ||
564 | status = decode_op_hdr(xdr, OP_LISTXATTRS); | |
565 | if (status) { | |
566 | /* | |
567 | * Special case: for LISTXATTRS, NFS4ERR_TOOSMALL | |
568 | * should be translated to ERANGE. | |
569 | */ | |
570 | if (status == -ETOOSMALL) | |
571 | status = -ERANGE; | |
572 | goto out; | |
573 | } | |
574 | ||
575 | p = xdr_inline_decode(xdr, 8); | |
576 | if (unlikely(!p)) | |
577 | return -EIO; | |
578 | ||
579 | xdr_decode_hyper(p, &res->cookie); | |
580 | ||
581 | p = xdr_inline_decode(xdr, 4); | |
582 | if (unlikely(!p)) | |
583 | return -EIO; | |
584 | ||
585 | left = res->xattr_len; | |
586 | buf = res->xattr_buf; | |
587 | ||
588 | count = be32_to_cpup(p); | |
589 | copied = 0; | |
590 | ||
591 | /* | |
592 | * We have asked for enough room to encode the maximum number | |
593 | * of possible attribute names, so everything should fit. | |
594 | * | |
595 | * But, don't rely on that assumption. Just decode entries | |
596 | * until they don't fit anymore, just in case the server did | |
597 | * something odd. | |
598 | */ | |
599 | while (count--) { | |
600 | p = xdr_inline_decode(xdr, 4); | |
601 | if (unlikely(!p)) | |
602 | return -EIO; | |
603 | ||
604 | len = be32_to_cpup(p); | |
605 | if (len > (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) { | |
606 | status = -ERANGE; | |
607 | goto out; | |
608 | } | |
609 | ||
610 | p = xdr_inline_decode(xdr, len); | |
611 | if (unlikely(!p)) | |
612 | return -EIO; | |
613 | ||
614 | ulen = len + XATTR_USER_PREFIX_LEN + 1; | |
615 | if (buf) { | |
616 | if (ulen > left) { | |
617 | status = -ERANGE; | |
618 | goto out; | |
619 | } | |
620 | ||
621 | memcpy(buf, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); | |
622 | memcpy(buf + XATTR_USER_PREFIX_LEN, p, len); | |
623 | ||
624 | buf[ulen - 1] = 0; | |
625 | buf += ulen; | |
626 | left -= ulen; | |
627 | } | |
628 | copied += ulen; | |
629 | } | |
630 | ||
631 | p = xdr_inline_decode(xdr, 4); | |
632 | if (unlikely(!p)) | |
633 | return -EIO; | |
634 | ||
635 | res->eof = be32_to_cpup(p); | |
636 | res->copied = copied; | |
637 | ||
638 | out: | |
639 | if (status == -ERANGE && res->xattr_len == XATTR_LIST_MAX) | |
640 | status = -E2BIG; | |
641 | ||
642 | return status; | |
643 | } | |
644 | ||
f4ac1674 AS |
645 | /* |
646 | * Encode ALLOCATE request | |
647 | */ | |
648 | static void nfs4_xdr_enc_allocate(struct rpc_rqst *req, | |
649 | struct xdr_stream *xdr, | |
0096d39b | 650 | const void *data) |
f4ac1674 | 651 | { |
0096d39b | 652 | const struct nfs42_falloc_args *args = data; |
f4ac1674 AS |
653 | struct compound_hdr hdr = { |
654 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
655 | }; | |
656 | ||
657 | encode_compound_hdr(xdr, req, &hdr); | |
658 | encode_sequence(xdr, &args->seq_args, &hdr); | |
659 | encode_putfh(xdr, args->falloc_fh, &hdr); | |
660 | encode_allocate(xdr, args, &hdr); | |
9a51940b | 661 | encode_getfattr(xdr, args->falloc_bitmask, &hdr); |
f4ac1674 AS |
662 | encode_nops(&hdr); |
663 | } | |
664 | ||
e0926934 | 665 | static void encode_copy_commit(struct xdr_stream *xdr, |
0096d39b | 666 | const struct nfs42_copy_args *args, |
e0926934 OK |
667 | struct compound_hdr *hdr) |
668 | { | |
669 | __be32 *p; | |
670 | ||
671 | encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); | |
672 | p = reserve_space(xdr, 12); | |
673 | p = xdr_encode_hyper(p, args->dst_pos); | |
674 | *p = cpu_to_be32(args->count); | |
675 | } | |
676 | ||
2e72448b AS |
677 | /* |
678 | * Encode COPY request | |
679 | */ | |
680 | static void nfs4_xdr_enc_copy(struct rpc_rqst *req, | |
681 | struct xdr_stream *xdr, | |
0096d39b | 682 | const void *data) |
2e72448b | 683 | { |
0096d39b | 684 | const struct nfs42_copy_args *args = data; |
2e72448b AS |
685 | struct compound_hdr hdr = { |
686 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
687 | }; | |
688 | ||
689 | encode_compound_hdr(xdr, req, &hdr); | |
690 | encode_sequence(xdr, &args->seq_args, &hdr); | |
691 | encode_putfh(xdr, args->src_fh, &hdr); | |
692 | encode_savefh(xdr, &hdr); | |
693 | encode_putfh(xdr, args->dst_fh, &hdr); | |
694 | encode_copy(xdr, args, &hdr); | |
62164f31 OK |
695 | if (args->sync) |
696 | encode_copy_commit(xdr, args, &hdr); | |
2e72448b AS |
697 | encode_nops(&hdr); |
698 | } | |
699 | ||
cb95deea OK |
700 | /* |
701 | * Encode OFFLOAD_CANEL request | |
702 | */ | |
703 | static void nfs4_xdr_enc_offload_cancel(struct rpc_rqst *req, | |
704 | struct xdr_stream *xdr, | |
705 | const void *data) | |
706 | { | |
707 | const struct nfs42_offload_status_args *args = data; | |
708 | struct compound_hdr hdr = { | |
709 | .minorversion = nfs4_xdr_minorversion(&args->osa_seq_args), | |
710 | }; | |
711 | ||
712 | encode_compound_hdr(xdr, req, &hdr); | |
713 | encode_sequence(xdr, &args->osa_seq_args, &hdr); | |
714 | encode_putfh(xdr, args->osa_src_fh, &hdr); | |
715 | encode_offload_cancel(xdr, args, &hdr); | |
716 | encode_nops(&hdr); | |
717 | } | |
718 | ||
0491567b OK |
719 | /* |
720 | * Encode COPY_NOTIFY request | |
721 | */ | |
722 | static void nfs4_xdr_enc_copy_notify(struct rpc_rqst *req, | |
723 | struct xdr_stream *xdr, | |
724 | const void *data) | |
725 | { | |
726 | const struct nfs42_copy_notify_args *args = data; | |
727 | struct compound_hdr hdr = { | |
728 | .minorversion = nfs4_xdr_minorversion(&args->cna_seq_args), | |
729 | }; | |
730 | ||
731 | encode_compound_hdr(xdr, req, &hdr); | |
732 | encode_sequence(xdr, &args->cna_seq_args, &hdr); | |
733 | encode_putfh(xdr, args->cna_src_fh, &hdr); | |
734 | encode_copy_notify(xdr, args, &hdr); | |
735 | encode_nops(&hdr); | |
736 | } | |
737 | ||
624bd5b7 AS |
738 | /* |
739 | * Encode DEALLOCATE request | |
740 | */ | |
741 | static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req, | |
742 | struct xdr_stream *xdr, | |
0096d39b | 743 | const void *data) |
624bd5b7 | 744 | { |
0096d39b | 745 | const struct nfs42_falloc_args *args = data; |
624bd5b7 AS |
746 | struct compound_hdr hdr = { |
747 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
748 | }; | |
749 | ||
750 | encode_compound_hdr(xdr, req, &hdr); | |
751 | encode_sequence(xdr, &args->seq_args, &hdr); | |
752 | encode_putfh(xdr, args->falloc_fh, &hdr); | |
753 | encode_deallocate(xdr, args, &hdr); | |
9a51940b | 754 | encode_getfattr(xdr, args->falloc_bitmask, &hdr); |
624bd5b7 AS |
755 | encode_nops(&hdr); |
756 | } | |
757 | ||
c5675526 AS |
758 | /* |
759 | * Encode READ_PLUS request | |
760 | */ | |
761 | static void nfs4_xdr_enc_read_plus(struct rpc_rqst *req, | |
762 | struct xdr_stream *xdr, | |
763 | const void *data) | |
764 | { | |
765 | const struct nfs_pgio_args *args = data; | |
766 | struct compound_hdr hdr = { | |
767 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
768 | }; | |
769 | ||
770 | encode_compound_hdr(xdr, req, &hdr); | |
771 | encode_sequence(xdr, &args->seq_args, &hdr); | |
772 | encode_putfh(xdr, args->fh, &hdr); | |
773 | encode_read_plus(xdr, args, &hdr); | |
774 | ||
775 | rpc_prepare_reply_pages(req, args->pages, args->pgbase, | |
776 | args->count, hdr.replen); | |
777 | encode_nops(&hdr); | |
778 | } | |
779 | ||
1c6dcbe5 AS |
780 | /* |
781 | * Encode SEEK request | |
782 | */ | |
783 | static void nfs4_xdr_enc_seek(struct rpc_rqst *req, | |
784 | struct xdr_stream *xdr, | |
0096d39b | 785 | const void *data) |
1c6dcbe5 | 786 | { |
0096d39b | 787 | const struct nfs42_seek_args *args = data; |
1c6dcbe5 AS |
788 | struct compound_hdr hdr = { |
789 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
790 | }; | |
791 | ||
792 | encode_compound_hdr(xdr, req, &hdr); | |
793 | encode_sequence(xdr, &args->seq_args, &hdr); | |
794 | encode_putfh(xdr, args->sa_fh, &hdr); | |
795 | encode_seek(xdr, args, &hdr); | |
796 | encode_nops(&hdr); | |
797 | } | |
798 | ||
be3a5d23 TM |
799 | /* |
800 | * Encode LAYOUTSTATS request | |
801 | */ | |
802 | static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req, | |
803 | struct xdr_stream *xdr, | |
0096d39b | 804 | const void *data) |
be3a5d23 | 805 | { |
0096d39b | 806 | const struct nfs42_layoutstat_args *args = data; |
be3a5d23 TM |
807 | int i; |
808 | ||
809 | struct compound_hdr hdr = { | |
810 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
811 | }; | |
812 | ||
813 | encode_compound_hdr(xdr, req, &hdr); | |
814 | encode_sequence(xdr, &args->seq_args, &hdr); | |
815 | encode_putfh(xdr, args->fh, &hdr); | |
816 | WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV); | |
817 | for (i = 0; i < args->num_dev; i++) | |
818 | encode_layoutstats(xdr, args, &args->devinfo[i], &hdr); | |
819 | encode_nops(&hdr); | |
820 | } | |
821 | ||
36022770 PT |
822 | /* |
823 | * Encode CLONE request | |
824 | */ | |
825 | static void nfs4_xdr_enc_clone(struct rpc_rqst *req, | |
826 | struct xdr_stream *xdr, | |
0096d39b | 827 | const void *data) |
36022770 | 828 | { |
0096d39b | 829 | const struct nfs42_clone_args *args = data; |
36022770 PT |
830 | struct compound_hdr hdr = { |
831 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
832 | }; | |
833 | ||
834 | encode_compound_hdr(xdr, req, &hdr); | |
835 | encode_sequence(xdr, &args->seq_args, &hdr); | |
836 | encode_putfh(xdr, args->src_fh, &hdr); | |
837 | encode_savefh(xdr, &hdr); | |
838 | encode_putfh(xdr, args->dst_fh, &hdr); | |
839 | encode_clone(xdr, args, &hdr); | |
840 | encode_getfattr(xdr, args->dst_bitmask, &hdr); | |
841 | encode_nops(&hdr); | |
842 | } | |
843 | ||
3eb86093 TM |
844 | /* |
845 | * Encode LAYOUTERROR request | |
846 | */ | |
847 | static void nfs4_xdr_enc_layouterror(struct rpc_rqst *req, | |
848 | struct xdr_stream *xdr, | |
849 | const void *data) | |
850 | { | |
851 | const struct nfs42_layouterror_args *args = data; | |
852 | struct compound_hdr hdr = { | |
853 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
854 | }; | |
855 | int i; | |
856 | ||
857 | encode_compound_hdr(xdr, req, &hdr); | |
858 | encode_sequence(xdr, &args->seq_args, &hdr); | |
859 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
860 | for (i = 0; i < args->num_errors; i++) | |
861 | encode_layouterror(xdr, &args->errors[i], &hdr); | |
862 | encode_nops(&hdr); | |
863 | } | |
864 | ||
f4ac1674 AS |
865 | static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res) |
866 | { | |
867 | return decode_op_hdr(xdr, OP_ALLOCATE); | |
868 | } | |
869 | ||
2e72448b AS |
870 | static int decode_write_response(struct xdr_stream *xdr, |
871 | struct nfs42_write_res *res) | |
872 | { | |
873 | __be32 *p; | |
67aa7444 | 874 | int status, count; |
2e72448b | 875 | |
67aa7444 | 876 | p = xdr_inline_decode(xdr, 4); |
2e72448b | 877 | if (unlikely(!p)) |
eb72f484 | 878 | return -EIO; |
67aa7444 OK |
879 | count = be32_to_cpup(p); |
880 | if (count > 1) | |
6fdf339b | 881 | return -EREMOTEIO; |
67aa7444 OK |
882 | else if (count == 1) { |
883 | status = decode_opaque_fixed(xdr, &res->stateid, | |
884 | NFS4_STATEID_SIZE); | |
885 | if (unlikely(status)) | |
eb72f484 | 886 | return -EIO; |
6fdf339b | 887 | } |
67aa7444 OK |
888 | p = xdr_inline_decode(xdr, 8 + 4); |
889 | if (unlikely(!p)) | |
eb72f484 | 890 | return -EIO; |
2e72448b AS |
891 | p = xdr_decode_hyper(p, &res->count); |
892 | res->verifier.committed = be32_to_cpup(p); | |
893 | return decode_verifier(xdr, &res->verifier.verifier); | |
2e72448b AS |
894 | } |
895 | ||
0491567b OK |
896 | static int decode_nl4_server(struct xdr_stream *xdr, struct nl4_server *ns) |
897 | { | |
898 | struct nfs42_netaddr *naddr; | |
899 | uint32_t dummy; | |
900 | char *dummy_str; | |
901 | __be32 *p; | |
902 | int status; | |
903 | ||
904 | /* nl_type */ | |
905 | p = xdr_inline_decode(xdr, 4); | |
906 | if (unlikely(!p)) | |
907 | return -EIO; | |
908 | ns->nl4_type = be32_to_cpup(p); | |
909 | switch (ns->nl4_type) { | |
910 | case NL4_NAME: | |
911 | case NL4_URL: | |
912 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); | |
913 | if (unlikely(status)) | |
914 | return status; | |
915 | if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) | |
916 | return -EIO; | |
917 | memcpy(&ns->u.nl4_str, dummy_str, dummy); | |
918 | ns->u.nl4_str_sz = dummy; | |
919 | break; | |
920 | case NL4_NETADDR: | |
921 | naddr = &ns->u.nl4_addr; | |
922 | ||
923 | /* netid string */ | |
924 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); | |
925 | if (unlikely(status)) | |
926 | return status; | |
927 | if (unlikely(dummy > RPCBIND_MAXNETIDLEN)) | |
928 | return -EIO; | |
929 | naddr->netid_len = dummy; | |
930 | memcpy(naddr->netid, dummy_str, naddr->netid_len); | |
931 | ||
932 | /* uaddr string */ | |
933 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); | |
934 | if (unlikely(status)) | |
935 | return status; | |
936 | if (unlikely(dummy > RPCBIND_MAXUADDRLEN)) | |
937 | return -EIO; | |
938 | naddr->addr_len = dummy; | |
939 | memcpy(naddr->addr, dummy_str, naddr->addr_len); | |
940 | break; | |
941 | default: | |
942 | WARN_ON_ONCE(1); | |
943 | return -EIO; | |
944 | } | |
945 | return 0; | |
946 | } | |
947 | ||
2e72448b AS |
948 | static int decode_copy_requirements(struct xdr_stream *xdr, |
949 | struct nfs42_copy_res *res) { | |
950 | __be32 *p; | |
951 | ||
952 | p = xdr_inline_decode(xdr, 4 + 4); | |
953 | if (unlikely(!p)) | |
eb72f484 | 954 | return -EIO; |
2e72448b AS |
955 | |
956 | res->consecutive = be32_to_cpup(p++); | |
957 | res->synchronous = be32_to_cpup(p++); | |
958 | return 0; | |
2e72448b AS |
959 | } |
960 | ||
961 | static int decode_copy(struct xdr_stream *xdr, struct nfs42_copy_res *res) | |
962 | { | |
963 | int status; | |
964 | ||
965 | status = decode_op_hdr(xdr, OP_COPY); | |
966 | if (status == NFS4ERR_OFFLOAD_NO_REQS) { | |
967 | status = decode_copy_requirements(xdr, res); | |
968 | if (status) | |
969 | return status; | |
970 | return NFS4ERR_OFFLOAD_NO_REQS; | |
971 | } else if (status) | |
972 | return status; | |
973 | ||
974 | status = decode_write_response(xdr, &res->write_res); | |
975 | if (status) | |
976 | return status; | |
977 | ||
978 | return decode_copy_requirements(xdr, res); | |
979 | } | |
980 | ||
cb95deea OK |
981 | static int decode_offload_cancel(struct xdr_stream *xdr, |
982 | struct nfs42_offload_status_res *res) | |
983 | { | |
984 | return decode_op_hdr(xdr, OP_OFFLOAD_CANCEL); | |
985 | } | |
986 | ||
0491567b OK |
987 | static int decode_copy_notify(struct xdr_stream *xdr, |
988 | struct nfs42_copy_notify_res *res) | |
989 | { | |
990 | __be32 *p; | |
991 | int status, count; | |
992 | ||
993 | status = decode_op_hdr(xdr, OP_COPY_NOTIFY); | |
994 | if (status) | |
995 | return status; | |
996 | /* cnr_lease_time */ | |
997 | p = xdr_inline_decode(xdr, 12); | |
998 | if (unlikely(!p)) | |
999 | return -EIO; | |
1000 | p = xdr_decode_hyper(p, &res->cnr_lease_time.seconds); | |
1001 | res->cnr_lease_time.nseconds = be32_to_cpup(p); | |
1002 | ||
1003 | status = decode_opaque_fixed(xdr, &res->cnr_stateid, NFS4_STATEID_SIZE); | |
1004 | if (unlikely(status)) | |
1005 | return -EIO; | |
1006 | ||
1007 | /* number of source addresses */ | |
1008 | p = xdr_inline_decode(xdr, 4); | |
1009 | if (unlikely(!p)) | |
1010 | return -EIO; | |
1011 | ||
1012 | count = be32_to_cpup(p); | |
1013 | if (count > 1) | |
1014 | pr_warn("NFS: %s: nsvr %d > Supported. Use first servers\n", | |
1015 | __func__, count); | |
1016 | ||
1017 | status = decode_nl4_server(xdr, &res->cnr_src); | |
1018 | if (unlikely(status)) | |
1019 | return -EIO; | |
1020 | return 0; | |
1021 | } | |
1022 | ||
624bd5b7 AS |
1023 | static int decode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res) |
1024 | { | |
1025 | return decode_op_hdr(xdr, OP_DEALLOCATE); | |
1026 | } | |
1027 | ||
503b934a | 1028 | static int decode_read_plus_data(struct xdr_stream *xdr, |
7aedc687 | 1029 | struct nfs_pgio_args *args, |
503b934a | 1030 | struct nfs_pgio_res *res) |
c5675526 AS |
1031 | { |
1032 | uint32_t count, recvd; | |
1033 | uint64_t offset; | |
1034 | __be32 *p; | |
1035 | ||
1036 | p = xdr_inline_decode(xdr, 8 + 4); | |
503b934a TM |
1037 | if (!p) |
1038 | return 1; | |
c5675526 AS |
1039 | |
1040 | p = xdr_decode_hyper(p, &offset); | |
1041 | count = be32_to_cpup(p); | |
5c4afe2a TM |
1042 | recvd = xdr_align_data(xdr, res->count, xdr_align_size(count)); |
1043 | if (recvd > count) | |
1044 | recvd = count; | |
7aedc687 TM |
1045 | if (res->count + recvd > args->count) { |
1046 | if (args->count > res->count) | |
1047 | res->count += args->count - res->count; | |
c5675526 AS |
1048 | return 1; |
1049 | } | |
c5675526 | 1050 | res->count += recvd; |
503b934a | 1051 | if (count > recvd) |
c5675526 | 1052 | return 1; |
c5675526 AS |
1053 | return 0; |
1054 | } | |
1055 | ||
82f98c8b TM |
1056 | static int decode_read_plus_hole(struct xdr_stream *xdr, |
1057 | struct nfs_pgio_args *args, | |
1058 | struct nfs_pgio_res *res, uint32_t *eof) | |
c05eafad AS |
1059 | { |
1060 | uint64_t offset, length, recvd; | |
1061 | __be32 *p; | |
1062 | ||
1063 | p = xdr_inline_decode(xdr, 8 + 8); | |
503b934a TM |
1064 | if (!p) |
1065 | return 1; | |
c05eafad AS |
1066 | |
1067 | p = xdr_decode_hyper(p, &offset); | |
1068 | p = xdr_decode_hyper(p, &length); | |
82f98c8b TM |
1069 | if (offset != args->offset + res->count) { |
1070 | /* Server returned an out-of-sequence extent */ | |
1071 | if (offset > args->offset + res->count || | |
1072 | offset + length < args->offset + res->count) { | |
1073 | dprintk("NFS: server returned out of sequence extent: " | |
1074 | "offset/size = %llu/%llu != expected %llu\n", | |
1075 | (unsigned long long)offset, | |
1076 | (unsigned long long)length, | |
1077 | (unsigned long long)(args->offset + | |
1078 | res->count)); | |
1079 | return 1; | |
1080 | } | |
1081 | length -= args->offset + res->count - offset; | |
1082 | } | |
dac3b105 TM |
1083 | if (length + res->count > args->count) { |
1084 | *eof = 0; | |
1085 | if (unlikely(res->count >= args->count)) | |
1086 | return 1; | |
1087 | length = args->count - res->count; | |
1088 | } | |
bff049a3 | 1089 | recvd = xdr_expand_hole(xdr, res->count, length); |
c05eafad AS |
1090 | res->count += recvd; |
1091 | ||
503b934a | 1092 | if (recvd < length) |
c05eafad | 1093 | return 1; |
c05eafad AS |
1094 | return 0; |
1095 | } | |
1096 | ||
c5675526 AS |
1097 | static int decode_read_plus(struct xdr_stream *xdr, struct nfs_pgio_res *res) |
1098 | { | |
82f98c8b TM |
1099 | struct nfs_pgio_header *hdr = |
1100 | container_of(res, struct nfs_pgio_header, res); | |
1101 | struct nfs_pgio_args *args = &hdr->args; | |
c5675526 | 1102 | uint32_t eof, segments, type; |
bff049a3 | 1103 | int status, i; |
c5675526 AS |
1104 | __be32 *p; |
1105 | ||
1106 | status = decode_op_hdr(xdr, OP_READ_PLUS); | |
1107 | if (status) | |
1108 | return status; | |
1109 | ||
1110 | p = xdr_inline_decode(xdr, 4 + 4); | |
1111 | if (unlikely(!p)) | |
1112 | return -EIO; | |
1113 | ||
1ee63101 | 1114 | res->count = 0; |
c5675526 AS |
1115 | eof = be32_to_cpup(p++); |
1116 | segments = be32_to_cpup(p++); | |
1117 | if (segments == 0) | |
1118 | goto out; | |
1119 | ||
bff049a3 AS |
1120 | for (i = 0; i < segments; i++) { |
1121 | p = xdr_inline_decode(xdr, 4); | |
503b934a TM |
1122 | if (!p) |
1123 | goto early_out; | |
c5675526 | 1124 | |
bff049a3 AS |
1125 | type = be32_to_cpup(p++); |
1126 | if (type == NFS4_CONTENT_DATA) | |
7aedc687 | 1127 | status = decode_read_plus_data(xdr, args, res); |
bff049a3 | 1128 | else if (type == NFS4_CONTENT_HOLE) |
82f98c8b | 1129 | status = decode_read_plus_hole(xdr, args, res, &eof); |
bff049a3 AS |
1130 | else |
1131 | return -EINVAL; | |
c5675526 | 1132 | |
bff049a3 AS |
1133 | if (status < 0) |
1134 | return status; | |
1135 | if (status > 0) | |
503b934a | 1136 | goto early_out; |
bff049a3 | 1137 | } |
c5675526 AS |
1138 | |
1139 | out: | |
1140 | res->eof = eof; | |
1141 | return 0; | |
503b934a TM |
1142 | early_out: |
1143 | if (unlikely(!i)) | |
1144 | return -EIO; | |
1145 | res->eof = 0; | |
1146 | return 0; | |
c5675526 AS |
1147 | } |
1148 | ||
1c6dcbe5 AS |
1149 | static int decode_seek(struct xdr_stream *xdr, struct nfs42_seek_res *res) |
1150 | { | |
1151 | int status; | |
1152 | __be32 *p; | |
1153 | ||
1154 | status = decode_op_hdr(xdr, OP_SEEK); | |
1155 | if (status) | |
1156 | return status; | |
1157 | ||
1158 | p = xdr_inline_decode(xdr, 4 + 8); | |
1159 | if (unlikely(!p)) | |
eb72f484 | 1160 | return -EIO; |
1c6dcbe5 AS |
1161 | |
1162 | res->sr_eof = be32_to_cpup(p++); | |
1163 | p = xdr_decode_hyper(p, &res->sr_offset); | |
1164 | return 0; | |
1c6dcbe5 AS |
1165 | } |
1166 | ||
19cf6335 | 1167 | static int decode_layoutstats(struct xdr_stream *xdr) |
be3a5d23 | 1168 | { |
da2e8127 | 1169 | return decode_op_hdr(xdr, OP_LAYOUTSTATS); |
be3a5d23 TM |
1170 | } |
1171 | ||
36022770 PT |
1172 | static int decode_clone(struct xdr_stream *xdr) |
1173 | { | |
1174 | return decode_op_hdr(xdr, OP_CLONE); | |
1175 | } | |
1176 | ||
3eb86093 TM |
1177 | static int decode_layouterror(struct xdr_stream *xdr) |
1178 | { | |
1179 | return decode_op_hdr(xdr, OP_LAYOUTERROR); | |
1180 | } | |
1181 | ||
f4ac1674 AS |
1182 | /* |
1183 | * Decode ALLOCATE request | |
1184 | */ | |
1185 | static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp, | |
1186 | struct xdr_stream *xdr, | |
18d9cff4 | 1187 | void *data) |
f4ac1674 | 1188 | { |
18d9cff4 | 1189 | struct nfs42_falloc_res *res = data; |
f4ac1674 AS |
1190 | struct compound_hdr hdr; |
1191 | int status; | |
1192 | ||
1193 | status = decode_compound_hdr(xdr, &hdr); | |
1194 | if (status) | |
1195 | goto out; | |
1196 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1197 | if (status) | |
1198 | goto out; | |
1199 | status = decode_putfh(xdr); | |
1200 | if (status) | |
1201 | goto out; | |
1202 | status = decode_allocate(xdr, res); | |
9a51940b AS |
1203 | if (status) |
1204 | goto out; | |
1205 | decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); | |
f4ac1674 AS |
1206 | out: |
1207 | return status; | |
1208 | } | |
1209 | ||
2e72448b AS |
1210 | /* |
1211 | * Decode COPY response | |
1212 | */ | |
1213 | static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp, | |
1214 | struct xdr_stream *xdr, | |
18d9cff4 | 1215 | void *data) |
2e72448b | 1216 | { |
18d9cff4 | 1217 | struct nfs42_copy_res *res = data; |
2e72448b AS |
1218 | struct compound_hdr hdr; |
1219 | int status; | |
1220 | ||
1221 | status = decode_compound_hdr(xdr, &hdr); | |
1222 | if (status) | |
1223 | goto out; | |
1224 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1225 | if (status) | |
1226 | goto out; | |
1227 | status = decode_putfh(xdr); | |
1228 | if (status) | |
1229 | goto out; | |
1230 | status = decode_savefh(xdr); | |
1231 | if (status) | |
1232 | goto out; | |
1233 | status = decode_putfh(xdr); | |
1234 | if (status) | |
1235 | goto out; | |
1236 | status = decode_copy(xdr, res); | |
e0926934 OK |
1237 | if (status) |
1238 | goto out; | |
62164f31 OK |
1239 | if (res->commit_res.verf) |
1240 | status = decode_commit(xdr, &res->commit_res); | |
2e72448b AS |
1241 | out: |
1242 | return status; | |
1243 | } | |
1244 | ||
cb95deea OK |
1245 | /* |
1246 | * Decode OFFLOAD_CANCEL response | |
1247 | */ | |
1248 | static int nfs4_xdr_dec_offload_cancel(struct rpc_rqst *rqstp, | |
1249 | struct xdr_stream *xdr, | |
1250 | void *data) | |
1251 | { | |
1252 | struct nfs42_offload_status_res *res = data; | |
1253 | struct compound_hdr hdr; | |
1254 | int status; | |
1255 | ||
1256 | status = decode_compound_hdr(xdr, &hdr); | |
1257 | if (status) | |
1258 | goto out; | |
1259 | status = decode_sequence(xdr, &res->osr_seq_res, rqstp); | |
1260 | if (status) | |
1261 | goto out; | |
1262 | status = decode_putfh(xdr); | |
1263 | if (status) | |
1264 | goto out; | |
1265 | status = decode_offload_cancel(xdr, res); | |
1266 | ||
1267 | out: | |
1268 | return status; | |
1269 | } | |
1270 | ||
0491567b OK |
1271 | /* |
1272 | * Decode COPY_NOTIFY response | |
1273 | */ | |
1274 | static int nfs4_xdr_dec_copy_notify(struct rpc_rqst *rqstp, | |
1275 | struct xdr_stream *xdr, | |
1276 | void *data) | |
1277 | { | |
1278 | struct nfs42_copy_notify_res *res = data; | |
1279 | struct compound_hdr hdr; | |
1280 | int status; | |
1281 | ||
1282 | status = decode_compound_hdr(xdr, &hdr); | |
1283 | if (status) | |
1284 | goto out; | |
1285 | status = decode_sequence(xdr, &res->cnr_seq_res, rqstp); | |
1286 | if (status) | |
1287 | goto out; | |
1288 | status = decode_putfh(xdr); | |
1289 | if (status) | |
1290 | goto out; | |
1291 | status = decode_copy_notify(xdr, res); | |
1292 | ||
1293 | out: | |
1294 | return status; | |
1295 | } | |
1296 | ||
624bd5b7 AS |
1297 | /* |
1298 | * Decode DEALLOCATE request | |
1299 | */ | |
1300 | static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp, | |
1301 | struct xdr_stream *xdr, | |
18d9cff4 | 1302 | void *data) |
624bd5b7 | 1303 | { |
18d9cff4 | 1304 | struct nfs42_falloc_res *res = data; |
624bd5b7 AS |
1305 | struct compound_hdr hdr; |
1306 | int status; | |
1307 | ||
1308 | status = decode_compound_hdr(xdr, &hdr); | |
1309 | if (status) | |
1310 | goto out; | |
1311 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1312 | if (status) | |
1313 | goto out; | |
1314 | status = decode_putfh(xdr); | |
1315 | if (status) | |
1316 | goto out; | |
1317 | status = decode_deallocate(xdr, res); | |
9a51940b AS |
1318 | if (status) |
1319 | goto out; | |
1320 | decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); | |
624bd5b7 AS |
1321 | out: |
1322 | return status; | |
1323 | } | |
1324 | ||
c5675526 AS |
1325 | /* |
1326 | * Decode READ_PLUS request | |
1327 | */ | |
1328 | static int nfs4_xdr_dec_read_plus(struct rpc_rqst *rqstp, | |
1329 | struct xdr_stream *xdr, | |
1330 | void *data) | |
1331 | { | |
1332 | struct nfs_pgio_res *res = data; | |
1333 | struct compound_hdr hdr; | |
1334 | int status; | |
1335 | ||
1336 | status = decode_compound_hdr(xdr, &hdr); | |
1337 | if (status) | |
1338 | goto out; | |
1339 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1340 | if (status) | |
1341 | goto out; | |
1342 | status = decode_putfh(xdr); | |
1343 | if (status) | |
1344 | goto out; | |
1345 | status = decode_read_plus(xdr, res); | |
1346 | if (!status) | |
1347 | status = res->count; | |
1348 | out: | |
1349 | return status; | |
1350 | } | |
1351 | ||
1c6dcbe5 AS |
1352 | /* |
1353 | * Decode SEEK request | |
1354 | */ | |
1355 | static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp, | |
1356 | struct xdr_stream *xdr, | |
18d9cff4 | 1357 | void *data) |
1c6dcbe5 | 1358 | { |
18d9cff4 | 1359 | struct nfs42_seek_res *res = data; |
1c6dcbe5 AS |
1360 | struct compound_hdr hdr; |
1361 | int status; | |
1362 | ||
1363 | status = decode_compound_hdr(xdr, &hdr); | |
1364 | if (status) | |
1365 | goto out; | |
1366 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1367 | if (status) | |
1368 | goto out; | |
1369 | status = decode_putfh(xdr); | |
1370 | if (status) | |
1371 | goto out; | |
1372 | status = decode_seek(xdr, res); | |
1373 | out: | |
1374 | return status; | |
1375 | } | |
be3a5d23 TM |
1376 | |
1377 | /* | |
1378 | * Decode LAYOUTSTATS request | |
1379 | */ | |
1380 | static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp, | |
1381 | struct xdr_stream *xdr, | |
18d9cff4 | 1382 | void *data) |
be3a5d23 | 1383 | { |
18d9cff4 | 1384 | struct nfs42_layoutstat_res *res = data; |
be3a5d23 TM |
1385 | struct compound_hdr hdr; |
1386 | int status, i; | |
1387 | ||
1388 | status = decode_compound_hdr(xdr, &hdr); | |
1389 | if (status) | |
1390 | goto out; | |
1391 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1392 | if (status) | |
1393 | goto out; | |
1394 | status = decode_putfh(xdr); | |
1395 | if (status) | |
1396 | goto out; | |
1397 | WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV); | |
1398 | for (i = 0; i < res->num_dev; i++) { | |
19cf6335 | 1399 | status = decode_layoutstats(xdr); |
be3a5d23 TM |
1400 | if (status) |
1401 | goto out; | |
1402 | } | |
1403 | out: | |
1404 | res->rpc_status = status; | |
1405 | return status; | |
1406 | } | |
1407 | ||
36022770 PT |
1408 | /* |
1409 | * Decode CLONE request | |
1410 | */ | |
1411 | static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp, | |
1412 | struct xdr_stream *xdr, | |
18d9cff4 | 1413 | void *data) |
36022770 | 1414 | { |
18d9cff4 | 1415 | struct nfs42_clone_res *res = data; |
36022770 PT |
1416 | struct compound_hdr hdr; |
1417 | int status; | |
1418 | ||
1419 | status = decode_compound_hdr(xdr, &hdr); | |
1420 | if (status) | |
1421 | goto out; | |
1422 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1423 | if (status) | |
1424 | goto out; | |
1425 | status = decode_putfh(xdr); | |
1426 | if (status) | |
1427 | goto out; | |
1428 | status = decode_savefh(xdr); | |
1429 | if (status) | |
1430 | goto out; | |
1431 | status = decode_putfh(xdr); | |
1432 | if (status) | |
1433 | goto out; | |
1434 | status = decode_clone(xdr); | |
1435 | if (status) | |
1436 | goto out; | |
d3c45824 | 1437 | decode_getfattr(xdr, res->dst_fattr, res->server); |
36022770 PT |
1438 | out: |
1439 | res->rpc_status = status; | |
1440 | return status; | |
1441 | } | |
1442 | ||
3eb86093 TM |
1443 | /* |
1444 | * Decode LAYOUTERROR request | |
1445 | */ | |
1446 | static int nfs4_xdr_dec_layouterror(struct rpc_rqst *rqstp, | |
1447 | struct xdr_stream *xdr, | |
1448 | void *data) | |
1449 | { | |
1450 | struct nfs42_layouterror_res *res = data; | |
1451 | struct compound_hdr hdr; | |
1452 | int status, i; | |
1453 | ||
1454 | status = decode_compound_hdr(xdr, &hdr); | |
1455 | if (status) | |
1456 | goto out; | |
1457 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1458 | if (status) | |
1459 | goto out; | |
1460 | status = decode_putfh(xdr); | |
1461 | ||
1462 | for (i = 0; i < res->num_errors && status == 0; i++) | |
1463 | status = decode_layouterror(xdr); | |
1464 | out: | |
1465 | res->rpc_status = status; | |
1466 | return status; | |
1467 | } | |
1468 | ||
3e1f0212 FL |
1469 | #ifdef CONFIG_NFS_V4_2 |
1470 | static void nfs4_xdr_enc_setxattr(struct rpc_rqst *req, struct xdr_stream *xdr, | |
1471 | const void *data) | |
1472 | { | |
1473 | const struct nfs42_setxattrargs *args = data; | |
1474 | struct compound_hdr hdr = { | |
1475 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
1476 | }; | |
1477 | ||
1478 | encode_compound_hdr(xdr, req, &hdr); | |
1479 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1480 | encode_putfh(xdr, args->fh, &hdr); | |
1481 | encode_setxattr(xdr, args, &hdr); | |
1482 | encode_nops(&hdr); | |
1483 | } | |
1484 | ||
1485 | static int nfs4_xdr_dec_setxattr(struct rpc_rqst *req, struct xdr_stream *xdr, | |
1486 | void *data) | |
1487 | { | |
1488 | struct nfs42_setxattrres *res = data; | |
1489 | struct compound_hdr hdr; | |
1490 | int status; | |
1491 | ||
1492 | status = decode_compound_hdr(xdr, &hdr); | |
1493 | if (status) | |
1494 | goto out; | |
1495 | status = decode_sequence(xdr, &res->seq_res, req); | |
1496 | if (status) | |
1497 | goto out; | |
1498 | status = decode_putfh(xdr); | |
1499 | if (status) | |
1500 | goto out; | |
1501 | ||
1502 | status = decode_setxattr(xdr, &res->cinfo); | |
1503 | out: | |
1504 | return status; | |
1505 | } | |
1506 | ||
1507 | static void nfs4_xdr_enc_getxattr(struct rpc_rqst *req, struct xdr_stream *xdr, | |
1508 | const void *data) | |
1509 | { | |
1510 | const struct nfs42_getxattrargs *args = data; | |
1511 | struct compound_hdr hdr = { | |
1512 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
1513 | }; | |
fa94a951 | 1514 | uint32_t replen; |
3e1f0212 FL |
1515 | |
1516 | encode_compound_hdr(xdr, req, &hdr); | |
1517 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1518 | encode_putfh(xdr, args->fh, &hdr); | |
fa94a951 | 1519 | replen = hdr.replen + op_decode_hdr_maxsz + 1; |
3e1f0212 FL |
1520 | encode_getxattr(xdr, args->xattr_name, &hdr); |
1521 | ||
a1f26739 FL |
1522 | rpc_prepare_reply_pages(req, args->xattr_pages, 0, args->xattr_len, |
1523 | replen); | |
3e1f0212 FL |
1524 | |
1525 | encode_nops(&hdr); | |
1526 | } | |
1527 | ||
1528 | static int nfs4_xdr_dec_getxattr(struct rpc_rqst *rqstp, | |
1529 | struct xdr_stream *xdr, void *data) | |
1530 | { | |
1531 | struct nfs42_getxattrres *res = data; | |
1532 | struct compound_hdr hdr; | |
1533 | int status; | |
1534 | ||
1535 | status = decode_compound_hdr(xdr, &hdr); | |
1536 | if (status) | |
1537 | goto out; | |
1538 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1539 | if (status) | |
1540 | goto out; | |
1541 | status = decode_putfh(xdr); | |
1542 | if (status) | |
1543 | goto out; | |
1544 | status = decode_getxattr(xdr, res, rqstp); | |
1545 | out: | |
1546 | return status; | |
1547 | } | |
1548 | ||
1549 | static void nfs4_xdr_enc_listxattrs(struct rpc_rqst *req, | |
1550 | struct xdr_stream *xdr, const void *data) | |
1551 | { | |
1552 | const struct nfs42_listxattrsargs *args = data; | |
1553 | struct compound_hdr hdr = { | |
1554 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
1555 | }; | |
fa94a951 | 1556 | uint32_t replen; |
3e1f0212 FL |
1557 | |
1558 | encode_compound_hdr(xdr, req, &hdr); | |
1559 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1560 | encode_putfh(xdr, args->fh, &hdr); | |
fa94a951 | 1561 | replen = hdr.replen + op_decode_hdr_maxsz + 2 + 1; |
3e1f0212 FL |
1562 | encode_listxattrs(xdr, args, &hdr); |
1563 | ||
fa94a951 | 1564 | rpc_prepare_reply_pages(req, args->xattr_pages, 0, args->count, replen); |
3e1f0212 FL |
1565 | |
1566 | encode_nops(&hdr); | |
1567 | } | |
1568 | ||
1569 | static int nfs4_xdr_dec_listxattrs(struct rpc_rqst *rqstp, | |
1570 | struct xdr_stream *xdr, void *data) | |
1571 | { | |
1572 | struct nfs42_listxattrsres *res = data; | |
1573 | struct compound_hdr hdr; | |
1574 | int status; | |
1575 | ||
0ae4c3e8 | 1576 | xdr_set_scratch_page(xdr, res->scratch); |
3e1f0212 FL |
1577 | |
1578 | status = decode_compound_hdr(xdr, &hdr); | |
1579 | if (status) | |
1580 | goto out; | |
1581 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
1582 | if (status) | |
1583 | goto out; | |
1584 | status = decode_putfh(xdr); | |
1585 | if (status) | |
1586 | goto out; | |
1587 | status = decode_listxattrs(xdr, res); | |
1588 | out: | |
1589 | return status; | |
1590 | } | |
1591 | ||
1592 | static void nfs4_xdr_enc_removexattr(struct rpc_rqst *req, | |
1593 | struct xdr_stream *xdr, const void *data) | |
1594 | { | |
1595 | const struct nfs42_removexattrargs *args = data; | |
1596 | struct compound_hdr hdr = { | |
1597 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
1598 | }; | |
1599 | ||
1600 | encode_compound_hdr(xdr, req, &hdr); | |
1601 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1602 | encode_putfh(xdr, args->fh, &hdr); | |
1603 | encode_removexattr(xdr, args->xattr_name, &hdr); | |
1604 | encode_nops(&hdr); | |
1605 | } | |
1606 | ||
1607 | static int nfs4_xdr_dec_removexattr(struct rpc_rqst *req, | |
1608 | struct xdr_stream *xdr, void *data) | |
1609 | { | |
1610 | struct nfs42_removexattrres *res = data; | |
1611 | struct compound_hdr hdr; | |
1612 | int status; | |
1613 | ||
1614 | status = decode_compound_hdr(xdr, &hdr); | |
1615 | if (status) | |
1616 | goto out; | |
1617 | status = decode_sequence(xdr, &res->seq_res, req); | |
1618 | if (status) | |
1619 | goto out; | |
1620 | status = decode_putfh(xdr); | |
1621 | if (status) | |
1622 | goto out; | |
1623 | ||
1624 | status = decode_removexattr(xdr, &res->cinfo); | |
1625 | out: | |
1626 | return status; | |
1627 | } | |
1628 | #endif | |
1c6dcbe5 | 1629 | #endif /* __LINUX_FS_NFS_NFS4_2XDR_H */ |