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1/*
2 * Process version 2 NFSACL requests.
3 *
4 * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
5 */
6
7#include "nfsd.h"
8/* FIXME: nfsacl.h is a broken header */
9#include <linux/nfsacl.h>
10#include <linux/gfp.h>
11#include "cache.h"
12#include "xdr3.h"
13#include "vfs.h"
14
15#define NFSDDBG_FACILITY NFSDDBG_PROC
16#define RETURN_STATUS(st) { resp->status = (st); return (st); }
17
18/*
19 * NULL call.
20 */
21static __be32
22nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
23{
24 return nfs_ok;
25}
26
27/*
28 * Get the Access and/or Default ACL of a file.
29 */
30static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
31 struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
32{
33 struct posix_acl *acl;
34 struct inode *inode;
35 svc_fh *fh;
36 __be32 nfserr = 0;
37
38 dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
39
40 fh = fh_copy(&resp->fh, &argp->fh);
41 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
42 if (nfserr)
43 RETURN_STATUS(nfserr);
44
45 inode = fh->fh_dentry->d_inode;
46
47 if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
48 RETURN_STATUS(nfserr_inval);
49 resp->mask = argp->mask;
50
51 nfserr = fh_getattr(fh, &resp->stat);
52 if (nfserr)
53 goto fail;
54
55 if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
56 acl = get_acl(inode, ACL_TYPE_ACCESS);
57 if (IS_ERR(acl)) {
58 nfserr = nfserrno(PTR_ERR(acl));
59 goto fail;
60 }
61 if (acl == NULL) {
62 /* Solaris returns the inode's minimum ACL. */
63 acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
64 }
65 resp->acl_access = acl;
66 }
67 if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
68 /* Check how Solaris handles requests for the Default ACL
69 of a non-directory! */
70 acl = get_acl(inode, ACL_TYPE_DEFAULT);
71 if (IS_ERR(acl)) {
72 nfserr = nfserrno(PTR_ERR(acl));
73 goto fail;
74 }
75 resp->acl_default = acl;
76 }
77
78 /* resp->acl_{access,default} are released in nfssvc_release_getacl. */
79 RETURN_STATUS(0);
80
81fail:
82 posix_acl_release(resp->acl_access);
83 posix_acl_release(resp->acl_default);
84 RETURN_STATUS(nfserr);
85}
86
87/*
88 * Set the Access and/or Default ACL of a file.
89 */
90static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
91 struct nfsd3_setaclargs *argp,
92 struct nfsd_attrstat *resp)
93{
94 struct inode *inode;
95 svc_fh *fh;
96 __be32 nfserr = 0;
97 int error;
98
99 dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
100
101 fh = fh_copy(&resp->fh, &argp->fh);
102 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
103 if (nfserr)
104 goto out;
105
106 inode = fh->fh_dentry->d_inode;
107 if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
108 error = -EOPNOTSUPP;
109 goto out_errno;
110 }
111
112 error = fh_want_write(fh);
113 if (error)
114 goto out_errno;
115
116 error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
117 if (error)
118 goto out_drop_write;
119 error = inode->i_op->set_acl(inode, argp->acl_default,
120 ACL_TYPE_DEFAULT);
121 if (error)
122 goto out_drop_write;
123
124 fh_drop_write(fh);
125
126 nfserr = fh_getattr(fh, &resp->stat);
127
128out:
129 /* argp->acl_{access,default} may have been allocated in
130 nfssvc_decode_setaclargs. */
131 posix_acl_release(argp->acl_access);
132 posix_acl_release(argp->acl_default);
133 return nfserr;
134out_drop_write:
135 fh_drop_write(fh);
136out_errno:
137 nfserr = nfserrno(error);
138 goto out;
139}
140
141/*
142 * Check file attributes
143 */
144static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
145 struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
146{
147 __be32 nfserr;
148 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
149
150 fh_copy(&resp->fh, &argp->fh);
151 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
152 if (nfserr)
153 return nfserr;
154 nfserr = fh_getattr(&resp->fh, &resp->stat);
155 return nfserr;
156}
157
158/*
159 * Check file access
160 */
161static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
162 struct nfsd3_accessres *resp)
163{
164 __be32 nfserr;
165
166 dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
167 SVCFH_fmt(&argp->fh),
168 argp->access);
169
170 fh_copy(&resp->fh, &argp->fh);
171 resp->access = argp->access;
172 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
173 if (nfserr)
174 return nfserr;
175 nfserr = fh_getattr(&resp->fh, &resp->stat);
176 return nfserr;
177}
178
179/*
180 * XDR decode functions
181 */
182static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
183 struct nfsd3_getaclargs *argp)
184{
185 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
186 return 0;
187 argp->mask = ntohl(*p); p++;
188
189 return xdr_argsize_check(rqstp, p);
190}
191
192
193static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
194 struct nfsd3_setaclargs *argp)
195{
196 struct kvec *head = rqstp->rq_arg.head;
197 unsigned int base;
198 int n;
199
200 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
201 return 0;
202 argp->mask = ntohl(*p++);
203 if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
204 !xdr_argsize_check(rqstp, p))
205 return 0;
206
207 base = (char *)p - (char *)head->iov_base;
208 n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
209 (argp->mask & NFS_ACL) ?
210 &argp->acl_access : NULL);
211 if (n > 0)
212 n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
213 (argp->mask & NFS_DFACL) ?
214 &argp->acl_default : NULL);
215 return (n > 0);
216}
217
218static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
219 struct nfsd_fhandle *argp)
220{
221 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
222 return 0;
223 return xdr_argsize_check(rqstp, p);
224}
225
226static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
227 struct nfsd3_accessargs *argp)
228{
229 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
230 return 0;
231 argp->access = ntohl(*p++);
232
233 return xdr_argsize_check(rqstp, p);
234}
235
236/*
237 * XDR encode functions
238 */
239
240/*
241 * There must be an encoding function for void results so svc_process
242 * will work properly.
243 */
244static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
245{
246 return xdr_ressize_check(rqstp, p);
247}
248
249/* GETACL */
250static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
251 struct nfsd3_getaclres *resp)
252{
253 struct dentry *dentry = resp->fh.fh_dentry;
254 struct inode *inode;
255 struct kvec *head = rqstp->rq_res.head;
256 unsigned int base;
257 int n;
258 int w;
259
260 /*
261 * Since this is version 2, the check for nfserr in
262 * nfsd_dispatch actually ensures the following cannot happen.
263 * However, it seems fragile to depend on that.
264 */
265 if (dentry == NULL || dentry->d_inode == NULL)
266 return 0;
267 inode = dentry->d_inode;
268
269 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
270 *p++ = htonl(resp->mask);
271 if (!xdr_ressize_check(rqstp, p))
272 return 0;
273 base = (char *)p - (char *)head->iov_base;
274
275 rqstp->rq_res.page_len = w = nfsacl_size(
276 (resp->mask & NFS_ACL) ? resp->acl_access : NULL,
277 (resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
278 while (w > 0) {
279 if (!*(rqstp->rq_next_page++))
280 return 0;
281 w -= PAGE_SIZE;
282 }
283
284 n = nfsacl_encode(&rqstp->rq_res, base, inode,
285 resp->acl_access,
286 resp->mask & NFS_ACL, 0);
287 if (n > 0)
288 n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
289 resp->acl_default,
290 resp->mask & NFS_DFACL,
291 NFS_ACL_DEFAULT);
292 if (n <= 0)
293 return 0;
294 return 1;
295}
296
297static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p,
298 struct nfsd_attrstat *resp)
299{
300 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
301 return xdr_ressize_check(rqstp, p);
302}
303
304/* ACCESS */
305static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
306 struct nfsd3_accessres *resp)
307{
308 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
309 *p++ = htonl(resp->access);
310 return xdr_ressize_check(rqstp, p);
311}
312
313/*
314 * XDR release functions
315 */
316static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
317 struct nfsd3_getaclres *resp)
318{
319 fh_put(&resp->fh);
320 posix_acl_release(resp->acl_access);
321 posix_acl_release(resp->acl_default);
322 return 1;
323}
324
325static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
326 struct nfsd_attrstat *resp)
327{
328 fh_put(&resp->fh);
329 return 1;
330}
331
332static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
333 struct nfsd3_accessres *resp)
334{
335 fh_put(&resp->fh);
336 return 1;
337}
338
339#define nfsaclsvc_decode_voidargs NULL
340#define nfsaclsvc_release_void NULL
341#define nfsd3_fhandleargs nfsd_fhandle
342#define nfsd3_attrstatres nfsd_attrstat
343#define nfsd3_voidres nfsd3_voidargs
344struct nfsd3_voidargs { int dummy; };
345
346#define PROC(name, argt, rest, relt, cache, respsize) \
347 { (svc_procfunc) nfsacld_proc_##name, \
348 (kxdrproc_t) nfsaclsvc_decode_##argt##args, \
349 (kxdrproc_t) nfsaclsvc_encode_##rest##res, \
350 (kxdrproc_t) nfsaclsvc_release_##relt, \
351 sizeof(struct nfsd3_##argt##args), \
352 sizeof(struct nfsd3_##rest##res), \
353 0, \
354 cache, \
355 respsize, \
356 }
357
358#define ST 1 /* status*/
359#define AT 21 /* attributes */
360#define pAT (1+AT) /* post attributes - conditional */
361#define ACL (1+NFS_ACL_MAX_ENTRIES*3) /* Access Control List */
362
363static struct svc_procedure nfsd_acl_procedures2[] = {
364 PROC(null, void, void, void, RC_NOCACHE, ST),
365 PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
366 PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
367 PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
368 PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
369};
370
371struct svc_version nfsd_acl_version2 = {
372 .vs_vers = 2,
373 .vs_nproc = 5,
374 .vs_proc = nfsd_acl_procedures2,
375 .vs_dispatch = nfsd_dispatch,
376 .vs_xdrsize = NFS3_SVC_XDRSIZE,
377 .vs_hidden = 0,
378};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Process version 2 NFSACL requests.
4 *
5 * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
6 */
7
8#include "nfsd.h"
9/* FIXME: nfsacl.h is a broken header */
10#include <linux/nfsacl.h>
11#include <linux/gfp.h>
12#include "cache.h"
13#include "xdr3.h"
14#include "vfs.h"
15
16#define NFSDDBG_FACILITY NFSDDBG_PROC
17#define RETURN_STATUS(st) { resp->status = (st); return (st); }
18
19/*
20 * NULL call.
21 */
22static __be32
23nfsacld_proc_null(struct svc_rqst *rqstp)
24{
25 return nfs_ok;
26}
27
28/*
29 * Get the Access and/or Default ACL of a file.
30 */
31static __be32 nfsacld_proc_getacl(struct svc_rqst *rqstp)
32{
33 struct nfsd3_getaclargs *argp = rqstp->rq_argp;
34 struct nfsd3_getaclres *resp = rqstp->rq_resp;
35 struct posix_acl *acl;
36 struct inode *inode;
37 svc_fh *fh;
38 __be32 nfserr = 0;
39
40 dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
41
42 fh = fh_copy(&resp->fh, &argp->fh);
43 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
44 if (nfserr)
45 RETURN_STATUS(nfserr);
46
47 inode = d_inode(fh->fh_dentry);
48
49 if (argp->mask & ~NFS_ACL_MASK)
50 RETURN_STATUS(nfserr_inval);
51 resp->mask = argp->mask;
52
53 nfserr = fh_getattr(fh, &resp->stat);
54 if (nfserr)
55 RETURN_STATUS(nfserr);
56
57 if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
58 acl = get_acl(inode, ACL_TYPE_ACCESS);
59 if (acl == NULL) {
60 /* Solaris returns the inode's minimum ACL. */
61 acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
62 }
63 if (IS_ERR(acl)) {
64 nfserr = nfserrno(PTR_ERR(acl));
65 goto fail;
66 }
67 resp->acl_access = acl;
68 }
69 if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
70 /* Check how Solaris handles requests for the Default ACL
71 of a non-directory! */
72 acl = get_acl(inode, ACL_TYPE_DEFAULT);
73 if (IS_ERR(acl)) {
74 nfserr = nfserrno(PTR_ERR(acl));
75 goto fail;
76 }
77 resp->acl_default = acl;
78 }
79
80 /* resp->acl_{access,default} are released in nfssvc_release_getacl. */
81 RETURN_STATUS(0);
82
83fail:
84 posix_acl_release(resp->acl_access);
85 posix_acl_release(resp->acl_default);
86 RETURN_STATUS(nfserr);
87}
88
89/*
90 * Set the Access and/or Default ACL of a file.
91 */
92static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp)
93{
94 struct nfsd3_setaclargs *argp = rqstp->rq_argp;
95 struct nfsd_attrstat *resp = rqstp->rq_resp;
96 struct inode *inode;
97 svc_fh *fh;
98 __be32 nfserr = 0;
99 int error;
100
101 dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
102
103 fh = fh_copy(&resp->fh, &argp->fh);
104 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
105 if (nfserr)
106 goto out;
107
108 inode = d_inode(fh->fh_dentry);
109
110 error = fh_want_write(fh);
111 if (error)
112 goto out_errno;
113
114 fh_lock(fh);
115
116 error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
117 if (error)
118 goto out_drop_lock;
119 error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
120 if (error)
121 goto out_drop_lock;
122
123 fh_unlock(fh);
124
125 fh_drop_write(fh);
126
127 nfserr = fh_getattr(fh, &resp->stat);
128
129out:
130 /* argp->acl_{access,default} may have been allocated in
131 nfssvc_decode_setaclargs. */
132 posix_acl_release(argp->acl_access);
133 posix_acl_release(argp->acl_default);
134 return nfserr;
135out_drop_lock:
136 fh_unlock(fh);
137 fh_drop_write(fh);
138out_errno:
139 nfserr = nfserrno(error);
140 goto out;
141}
142
143/*
144 * Check file attributes
145 */
146static __be32 nfsacld_proc_getattr(struct svc_rqst *rqstp)
147{
148 struct nfsd_fhandle *argp = rqstp->rq_argp;
149 struct nfsd_attrstat *resp = rqstp->rq_resp;
150 __be32 nfserr;
151 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
152
153 fh_copy(&resp->fh, &argp->fh);
154 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
155 if (nfserr)
156 return nfserr;
157 nfserr = fh_getattr(&resp->fh, &resp->stat);
158 return nfserr;
159}
160
161/*
162 * Check file access
163 */
164static __be32 nfsacld_proc_access(struct svc_rqst *rqstp)
165{
166 struct nfsd3_accessargs *argp = rqstp->rq_argp;
167 struct nfsd3_accessres *resp = rqstp->rq_resp;
168 __be32 nfserr;
169
170 dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
171 SVCFH_fmt(&argp->fh),
172 argp->access);
173
174 fh_copy(&resp->fh, &argp->fh);
175 resp->access = argp->access;
176 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
177 if (nfserr)
178 return nfserr;
179 nfserr = fh_getattr(&resp->fh, &resp->stat);
180 return nfserr;
181}
182
183/*
184 * XDR decode functions
185 */
186static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p)
187{
188 struct nfsd3_getaclargs *argp = rqstp->rq_argp;
189
190 p = nfs2svc_decode_fh(p, &argp->fh);
191 if (!p)
192 return 0;
193 argp->mask = ntohl(*p); p++;
194
195 return xdr_argsize_check(rqstp, p);
196}
197
198
199static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p)
200{
201 struct nfsd3_setaclargs *argp = rqstp->rq_argp;
202 struct kvec *head = rqstp->rq_arg.head;
203 unsigned int base;
204 int n;
205
206 p = nfs2svc_decode_fh(p, &argp->fh);
207 if (!p)
208 return 0;
209 argp->mask = ntohl(*p++);
210 if (argp->mask & ~NFS_ACL_MASK ||
211 !xdr_argsize_check(rqstp, p))
212 return 0;
213
214 base = (char *)p - (char *)head->iov_base;
215 n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
216 (argp->mask & NFS_ACL) ?
217 &argp->acl_access : NULL);
218 if (n > 0)
219 n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
220 (argp->mask & NFS_DFACL) ?
221 &argp->acl_default : NULL);
222 return (n > 0);
223}
224
225static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p)
226{
227 struct nfsd_fhandle *argp = rqstp->rq_argp;
228
229 p = nfs2svc_decode_fh(p, &argp->fh);
230 if (!p)
231 return 0;
232 return xdr_argsize_check(rqstp, p);
233}
234
235static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p)
236{
237 struct nfsd3_accessargs *argp = rqstp->rq_argp;
238
239 p = nfs2svc_decode_fh(p, &argp->fh);
240 if (!p)
241 return 0;
242 argp->access = ntohl(*p++);
243
244 return xdr_argsize_check(rqstp, p);
245}
246
247/*
248 * XDR encode functions
249 */
250
251/*
252 * There must be an encoding function for void results so svc_process
253 * will work properly.
254 */
255static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p)
256{
257 return xdr_ressize_check(rqstp, p);
258}
259
260/* GETACL */
261static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p)
262{
263 struct nfsd3_getaclres *resp = rqstp->rq_resp;
264 struct dentry *dentry = resp->fh.fh_dentry;
265 struct inode *inode;
266 struct kvec *head = rqstp->rq_res.head;
267 unsigned int base;
268 int n;
269 int w;
270
271 /*
272 * Since this is version 2, the check for nfserr in
273 * nfsd_dispatch actually ensures the following cannot happen.
274 * However, it seems fragile to depend on that.
275 */
276 if (dentry == NULL || d_really_is_negative(dentry))
277 return 0;
278 inode = d_inode(dentry);
279
280 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
281 *p++ = htonl(resp->mask);
282 if (!xdr_ressize_check(rqstp, p))
283 return 0;
284 base = (char *)p - (char *)head->iov_base;
285
286 rqstp->rq_res.page_len = w = nfsacl_size(
287 (resp->mask & NFS_ACL) ? resp->acl_access : NULL,
288 (resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
289 while (w > 0) {
290 if (!*(rqstp->rq_next_page++))
291 return 0;
292 w -= PAGE_SIZE;
293 }
294
295 n = nfsacl_encode(&rqstp->rq_res, base, inode,
296 resp->acl_access,
297 resp->mask & NFS_ACL, 0);
298 if (n > 0)
299 n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
300 resp->acl_default,
301 resp->mask & NFS_DFACL,
302 NFS_ACL_DEFAULT);
303 return (n > 0);
304}
305
306static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p)
307{
308 struct nfsd_attrstat *resp = rqstp->rq_resp;
309
310 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
311 return xdr_ressize_check(rqstp, p);
312}
313
314/* ACCESS */
315static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p)
316{
317 struct nfsd3_accessres *resp = rqstp->rq_resp;
318
319 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
320 *p++ = htonl(resp->access);
321 return xdr_ressize_check(rqstp, p);
322}
323
324/*
325 * XDR release functions
326 */
327static void nfsaclsvc_release_getacl(struct svc_rqst *rqstp)
328{
329 struct nfsd3_getaclres *resp = rqstp->rq_resp;
330
331 fh_put(&resp->fh);
332 posix_acl_release(resp->acl_access);
333 posix_acl_release(resp->acl_default);
334}
335
336static void nfsaclsvc_release_attrstat(struct svc_rqst *rqstp)
337{
338 struct nfsd_attrstat *resp = rqstp->rq_resp;
339
340 fh_put(&resp->fh);
341}
342
343static void nfsaclsvc_release_access(struct svc_rqst *rqstp)
344{
345 struct nfsd3_accessres *resp = rqstp->rq_resp;
346
347 fh_put(&resp->fh);
348}
349
350#define nfsaclsvc_decode_voidargs NULL
351#define nfsaclsvc_release_void NULL
352#define nfsd3_fhandleargs nfsd_fhandle
353#define nfsd3_attrstatres nfsd_attrstat
354#define nfsd3_voidres nfsd3_voidargs
355struct nfsd3_voidargs { int dummy; };
356
357#define PROC(name, argt, rest, relt, cache, respsize) \
358{ \
359 .pc_func = nfsacld_proc_##name, \
360 .pc_decode = nfsaclsvc_decode_##argt##args, \
361 .pc_encode = nfsaclsvc_encode_##rest##res, \
362 .pc_release = nfsaclsvc_release_##relt, \
363 .pc_argsize = sizeof(struct nfsd3_##argt##args), \
364 .pc_ressize = sizeof(struct nfsd3_##rest##res), \
365 .pc_cachetype = cache, \
366 .pc_xdrressize = respsize, \
367}
368
369#define ST 1 /* status*/
370#define AT 21 /* attributes */
371#define pAT (1+AT) /* post attributes - conditional */
372#define ACL (1+NFS_ACL_MAX_ENTRIES*3) /* Access Control List */
373
374static const struct svc_procedure nfsd_acl_procedures2[] = {
375 PROC(null, void, void, void, RC_NOCACHE, ST),
376 PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
377 PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
378 PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
379 PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
380};
381
382static unsigned int nfsd_acl_count2[ARRAY_SIZE(nfsd_acl_procedures2)];
383const struct svc_version nfsd_acl_version2 = {
384 .vs_vers = 2,
385 .vs_nproc = 5,
386 .vs_proc = nfsd_acl_procedures2,
387 .vs_count = nfsd_acl_count2,
388 .vs_dispatch = nfsd_dispatch,
389 .vs_xdrsize = NFS3_SVC_XDRSIZE,
390};