Loading...
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
18/*
19 * NULL call.
20 */
21static __be32
22nfsacld_proc_null(struct svc_rqst *rqstp)
23{
24 return rpc_success;
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{
32 struct nfsd3_getaclargs *argp = rqstp->rq_argp;
33 struct nfsd3_getaclres *resp = rqstp->rq_resp;
34 struct posix_acl *acl;
35 struct inode *inode;
36 svc_fh *fh;
37
38 dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
39
40 fh = fh_copy(&resp->fh, &argp->fh);
41 resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
42 if (resp->status != nfs_ok)
43 goto out;
44
45 inode = d_inode(fh->fh_dentry);
46
47 if (argp->mask & ~NFS_ACL_MASK) {
48 resp->status = nfserr_inval;
49 goto out;
50 }
51 resp->mask = argp->mask;
52
53 resp->status = fh_getattr(fh, &resp->stat);
54 if (resp->status != nfs_ok)
55 goto out;
56
57 if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
58 acl = get_inode_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 resp->status = 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_inode_acl(inode, ACL_TYPE_DEFAULT);
73 if (IS_ERR(acl)) {
74 resp->status = 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. */
81out:
82 return rpc_success;
83
84fail:
85 posix_acl_release(resp->acl_access);
86 posix_acl_release(resp->acl_default);
87 goto out;
88}
89
90/*
91 * Set the Access and/or Default ACL of a file.
92 */
93static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp)
94{
95 struct nfsd3_setaclargs *argp = rqstp->rq_argp;
96 struct nfsd_attrstat *resp = rqstp->rq_resp;
97 struct inode *inode;
98 svc_fh *fh;
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 resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
105 if (resp->status != nfs_ok)
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 inode_lock(inode);
115
116 error = set_posix_acl(&nop_mnt_idmap, fh->fh_dentry, ACL_TYPE_ACCESS,
117 argp->acl_access);
118 if (error)
119 goto out_drop_lock;
120 error = set_posix_acl(&nop_mnt_idmap, fh->fh_dentry, ACL_TYPE_DEFAULT,
121 argp->acl_default);
122 if (error)
123 goto out_drop_lock;
124
125 inode_unlock(inode);
126
127 fh_drop_write(fh);
128
129 resp->status = fh_getattr(fh, &resp->stat);
130
131out:
132 /* argp->acl_{access,default} may have been allocated in
133 nfssvc_decode_setaclargs. */
134 posix_acl_release(argp->acl_access);
135 posix_acl_release(argp->acl_default);
136 return rpc_success;
137
138out_drop_lock:
139 inode_unlock(inode);
140 fh_drop_write(fh);
141out_errno:
142 resp->status = nfserrno(error);
143 goto out;
144}
145
146/*
147 * Check file attributes
148 */
149static __be32 nfsacld_proc_getattr(struct svc_rqst *rqstp)
150{
151 struct nfsd_fhandle *argp = rqstp->rq_argp;
152 struct nfsd_attrstat *resp = rqstp->rq_resp;
153
154 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
155
156 fh_copy(&resp->fh, &argp->fh);
157 resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
158 if (resp->status != nfs_ok)
159 goto out;
160 resp->status = fh_getattr(&resp->fh, &resp->stat);
161out:
162 return rpc_success;
163}
164
165/*
166 * Check file access
167 */
168static __be32 nfsacld_proc_access(struct svc_rqst *rqstp)
169{
170 struct nfsd3_accessargs *argp = rqstp->rq_argp;
171 struct nfsd3_accessres *resp = rqstp->rq_resp;
172
173 dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
174 SVCFH_fmt(&argp->fh),
175 argp->access);
176
177 fh_copy(&resp->fh, &argp->fh);
178 resp->access = argp->access;
179 resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
180 if (resp->status != nfs_ok)
181 goto out;
182 resp->status = fh_getattr(&resp->fh, &resp->stat);
183out:
184 return rpc_success;
185}
186
187/*
188 * XDR decode functions
189 */
190
191static bool
192nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
193{
194 struct nfsd3_getaclargs *argp = rqstp->rq_argp;
195
196 if (!svcxdr_decode_fhandle(xdr, &argp->fh))
197 return false;
198 if (xdr_stream_decode_u32(xdr, &argp->mask) < 0)
199 return false;
200
201 return true;
202}
203
204static bool
205nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
206{
207 struct nfsd3_setaclargs *argp = rqstp->rq_argp;
208
209 if (!svcxdr_decode_fhandle(xdr, &argp->fh))
210 return false;
211 if (xdr_stream_decode_u32(xdr, &argp->mask) < 0)
212 return false;
213 if (argp->mask & ~NFS_ACL_MASK)
214 return false;
215 if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_ACL) ?
216 &argp->acl_access : NULL))
217 return false;
218 if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_DFACL) ?
219 &argp->acl_default : NULL))
220 return false;
221
222 return true;
223}
224
225static bool
226nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
227{
228 struct nfsd3_accessargs *args = rqstp->rq_argp;
229
230 if (!svcxdr_decode_fhandle(xdr, &args->fh))
231 return false;
232 if (xdr_stream_decode_u32(xdr, &args->access) < 0)
233 return false;
234
235 return true;
236}
237
238/*
239 * XDR encode functions
240 */
241
242/* GETACL */
243static bool
244nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
245{
246 struct nfsd3_getaclres *resp = rqstp->rq_resp;
247 struct dentry *dentry = resp->fh.fh_dentry;
248 struct inode *inode;
249
250 if (!svcxdr_encode_stat(xdr, resp->status))
251 return false;
252
253 if (dentry == NULL || d_really_is_negative(dentry))
254 return true;
255 inode = d_inode(dentry);
256
257 if (!svcxdr_encode_fattr(rqstp, xdr, &resp->fh, &resp->stat))
258 return false;
259 if (xdr_stream_encode_u32(xdr, resp->mask) < 0)
260 return false;
261
262 if (!nfs_stream_encode_acl(xdr, inode, resp->acl_access,
263 resp->mask & NFS_ACL, 0))
264 return false;
265 if (!nfs_stream_encode_acl(xdr, inode, resp->acl_default,
266 resp->mask & NFS_DFACL, NFS_ACL_DEFAULT))
267 return false;
268
269 return true;
270}
271
272/* ACCESS */
273static bool
274nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
275{
276 struct nfsd3_accessres *resp = rqstp->rq_resp;
277
278 if (!svcxdr_encode_stat(xdr, resp->status))
279 return false;
280 switch (resp->status) {
281 case nfs_ok:
282 if (!svcxdr_encode_fattr(rqstp, xdr, &resp->fh, &resp->stat))
283 return false;
284 if (xdr_stream_encode_u32(xdr, resp->access) < 0)
285 return false;
286 break;
287 }
288
289 return true;
290}
291
292/*
293 * XDR release functions
294 */
295static void nfsaclsvc_release_getacl(struct svc_rqst *rqstp)
296{
297 struct nfsd3_getaclres *resp = rqstp->rq_resp;
298
299 fh_put(&resp->fh);
300 posix_acl_release(resp->acl_access);
301 posix_acl_release(resp->acl_default);
302}
303
304static void nfsaclsvc_release_access(struct svc_rqst *rqstp)
305{
306 struct nfsd3_accessres *resp = rqstp->rq_resp;
307
308 fh_put(&resp->fh);
309}
310
311struct nfsd3_voidargs { int dummy; };
312
313#define ST 1 /* status*/
314#define AT 21 /* attributes */
315#define pAT (1+AT) /* post attributes - conditional */
316#define ACL (1+NFS_ACL_MAX_ENTRIES*3) /* Access Control List */
317
318static const struct svc_procedure nfsd_acl_procedures2[5] = {
319 [ACLPROC2_NULL] = {
320 .pc_func = nfsacld_proc_null,
321 .pc_decode = nfssvc_decode_voidarg,
322 .pc_encode = nfssvc_encode_voidres,
323 .pc_argsize = sizeof(struct nfsd_voidargs),
324 .pc_argzero = sizeof(struct nfsd_voidargs),
325 .pc_ressize = sizeof(struct nfsd_voidres),
326 .pc_cachetype = RC_NOCACHE,
327 .pc_xdrressize = ST,
328 .pc_name = "NULL",
329 },
330 [ACLPROC2_GETACL] = {
331 .pc_func = nfsacld_proc_getacl,
332 .pc_decode = nfsaclsvc_decode_getaclargs,
333 .pc_encode = nfsaclsvc_encode_getaclres,
334 .pc_release = nfsaclsvc_release_getacl,
335 .pc_argsize = sizeof(struct nfsd3_getaclargs),
336 .pc_argzero = sizeof(struct nfsd3_getaclargs),
337 .pc_ressize = sizeof(struct nfsd3_getaclres),
338 .pc_cachetype = RC_NOCACHE,
339 .pc_xdrressize = ST+1+2*(1+ACL),
340 .pc_name = "GETACL",
341 },
342 [ACLPROC2_SETACL] = {
343 .pc_func = nfsacld_proc_setacl,
344 .pc_decode = nfsaclsvc_decode_setaclargs,
345 .pc_encode = nfssvc_encode_attrstatres,
346 .pc_release = nfssvc_release_attrstat,
347 .pc_argsize = sizeof(struct nfsd3_setaclargs),
348 .pc_argzero = sizeof(struct nfsd3_setaclargs),
349 .pc_ressize = sizeof(struct nfsd_attrstat),
350 .pc_cachetype = RC_NOCACHE,
351 .pc_xdrressize = ST+AT,
352 .pc_name = "SETACL",
353 },
354 [ACLPROC2_GETATTR] = {
355 .pc_func = nfsacld_proc_getattr,
356 .pc_decode = nfssvc_decode_fhandleargs,
357 .pc_encode = nfssvc_encode_attrstatres,
358 .pc_release = nfssvc_release_attrstat,
359 .pc_argsize = sizeof(struct nfsd_fhandle),
360 .pc_argzero = sizeof(struct nfsd_fhandle),
361 .pc_ressize = sizeof(struct nfsd_attrstat),
362 .pc_cachetype = RC_NOCACHE,
363 .pc_xdrressize = ST+AT,
364 .pc_name = "GETATTR",
365 },
366 [ACLPROC2_ACCESS] = {
367 .pc_func = nfsacld_proc_access,
368 .pc_decode = nfsaclsvc_decode_accessargs,
369 .pc_encode = nfsaclsvc_encode_accessres,
370 .pc_release = nfsaclsvc_release_access,
371 .pc_argsize = sizeof(struct nfsd3_accessargs),
372 .pc_argzero = sizeof(struct nfsd3_accessargs),
373 .pc_ressize = sizeof(struct nfsd3_accessres),
374 .pc_cachetype = RC_NOCACHE,
375 .pc_xdrressize = ST+AT+1,
376 .pc_name = "SETATTR",
377 },
378};
379
380static DEFINE_PER_CPU_ALIGNED(unsigned long,
381 nfsd_acl_count2[ARRAY_SIZE(nfsd_acl_procedures2)]);
382const struct svc_version nfsd_acl_version2 = {
383 .vs_vers = 2,
384 .vs_nproc = ARRAY_SIZE(nfsd_acl_procedures2),
385 .vs_proc = nfsd_acl_procedures2,
386 .vs_count = nfsd_acl_count2,
387 .vs_dispatch = nfsd_dispatch,
388 .vs_xdrsize = NFS3_SVC_XDRSIZE,
389};
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 svc_fh *fh;
34 struct posix_acl *acl;
35 __be32 nfserr = 0;
36
37 dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
38
39 fh = fh_copy(&resp->fh, &argp->fh);
40 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
41 if (nfserr)
42 RETURN_STATUS(nfserr);
43
44 if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
45 RETURN_STATUS(nfserr_inval);
46 resp->mask = argp->mask;
47
48 if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
49 acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
50 if (IS_ERR(acl)) {
51 int err = PTR_ERR(acl);
52
53 if (err == -ENODATA || err == -EOPNOTSUPP)
54 acl = NULL;
55 else {
56 nfserr = nfserrno(err);
57 goto fail;
58 }
59 }
60 if (acl == NULL) {
61 /* Solaris returns the inode's minimum ACL. */
62
63 struct inode *inode = fh->fh_dentry->d_inode;
64 acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
65 }
66 resp->acl_access = acl;
67 }
68 if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
69 /* Check how Solaris handles requests for the Default ACL
70 of a non-directory! */
71
72 acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
73 if (IS_ERR(acl)) {
74 int err = PTR_ERR(acl);
75
76 if (err == -ENODATA || err == -EOPNOTSUPP)
77 acl = NULL;
78 else {
79 nfserr = nfserrno(err);
80 goto fail;
81 }
82 }
83 resp->acl_default = acl;
84 }
85
86 /* resp->acl_{access,default} are released in nfssvc_release_getacl. */
87 RETURN_STATUS(0);
88
89fail:
90 posix_acl_release(resp->acl_access);
91 posix_acl_release(resp->acl_default);
92 RETURN_STATUS(nfserr);
93}
94
95/*
96 * Set the Access and/or Default ACL of a file.
97 */
98static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
99 struct nfsd3_setaclargs *argp,
100 struct nfsd_attrstat *resp)
101{
102 svc_fh *fh;
103 __be32 nfserr = 0;
104
105 dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
106
107 fh = fh_copy(&resp->fh, &argp->fh);
108 nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
109
110 if (!nfserr) {
111 nfserr = nfserrno( nfsd_set_posix_acl(
112 fh, ACL_TYPE_ACCESS, argp->acl_access) );
113 }
114 if (!nfserr) {
115 nfserr = nfserrno( nfsd_set_posix_acl(
116 fh, ACL_TYPE_DEFAULT, argp->acl_default) );
117 }
118
119 /* argp->acl_{access,default} may have been allocated in
120 nfssvc_decode_setaclargs. */
121 posix_acl_release(argp->acl_access);
122 posix_acl_release(argp->acl_default);
123 return nfserr;
124}
125
126/*
127 * Check file attributes
128 */
129static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
130 struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
131{
132 dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
133
134 fh_copy(&resp->fh, &argp->fh);
135 return fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP);
136}
137
138/*
139 * Check file access
140 */
141static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
142 struct nfsd3_accessres *resp)
143{
144 __be32 nfserr;
145
146 dprintk("nfsd: ACCESS(2acl) %s 0x%x\n",
147 SVCFH_fmt(&argp->fh),
148 argp->access);
149
150 fh_copy(&resp->fh, &argp->fh);
151 resp->access = argp->access;
152 nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
153 return nfserr;
154}
155
156/*
157 * XDR decode functions
158 */
159static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
160 struct nfsd3_getaclargs *argp)
161{
162 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
163 return 0;
164 argp->mask = ntohl(*p); p++;
165
166 return xdr_argsize_check(rqstp, p);
167}
168
169
170static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
171 struct nfsd3_setaclargs *argp)
172{
173 struct kvec *head = rqstp->rq_arg.head;
174 unsigned int base;
175 int n;
176
177 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
178 return 0;
179 argp->mask = ntohl(*p++);
180 if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
181 !xdr_argsize_check(rqstp, p))
182 return 0;
183
184 base = (char *)p - (char *)head->iov_base;
185 n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
186 (argp->mask & NFS_ACL) ?
187 &argp->acl_access : NULL);
188 if (n > 0)
189 n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
190 (argp->mask & NFS_DFACL) ?
191 &argp->acl_default : NULL);
192 return (n > 0);
193}
194
195static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
196 struct nfsd_fhandle *argp)
197{
198 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
199 return 0;
200 return xdr_argsize_check(rqstp, p);
201}
202
203static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
204 struct nfsd3_accessargs *argp)
205{
206 if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
207 return 0;
208 argp->access = ntohl(*p++);
209
210 return xdr_argsize_check(rqstp, p);
211}
212
213/*
214 * XDR encode functions
215 */
216
217/*
218 * There must be an encoding function for void results so svc_process
219 * will work properly.
220 */
221int
222nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
223{
224 return xdr_ressize_check(rqstp, p);
225}
226
227/* GETACL */
228static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
229 struct nfsd3_getaclres *resp)
230{
231 struct dentry *dentry = resp->fh.fh_dentry;
232 struct inode *inode;
233 struct kvec *head = rqstp->rq_res.head;
234 unsigned int base;
235 int n;
236 int w;
237
238 /*
239 * Since this is version 2, the check for nfserr in
240 * nfsd_dispatch actually ensures the following cannot happen.
241 * However, it seems fragile to depend on that.
242 */
243 if (dentry == NULL || dentry->d_inode == NULL)
244 return 0;
245 inode = dentry->d_inode;
246
247 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
248 *p++ = htonl(resp->mask);
249 if (!xdr_ressize_check(rqstp, p))
250 return 0;
251 base = (char *)p - (char *)head->iov_base;
252
253 rqstp->rq_res.page_len = w = nfsacl_size(
254 (resp->mask & NFS_ACL) ? resp->acl_access : NULL,
255 (resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
256 while (w > 0) {
257 if (!rqstp->rq_respages[rqstp->rq_resused++])
258 return 0;
259 w -= PAGE_SIZE;
260 }
261
262 n = nfsacl_encode(&rqstp->rq_res, base, inode,
263 resp->acl_access,
264 resp->mask & NFS_ACL, 0);
265 if (n > 0)
266 n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
267 resp->acl_default,
268 resp->mask & NFS_DFACL,
269 NFS_ACL_DEFAULT);
270 if (n <= 0)
271 return 0;
272 return 1;
273}
274
275static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p,
276 struct nfsd_attrstat *resp)
277{
278 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
279 return xdr_ressize_check(rqstp, p);
280}
281
282/* ACCESS */
283static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
284 struct nfsd3_accessres *resp)
285{
286 p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
287 *p++ = htonl(resp->access);
288 return xdr_ressize_check(rqstp, p);
289}
290
291/*
292 * XDR release functions
293 */
294static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
295 struct nfsd3_getaclres *resp)
296{
297 fh_put(&resp->fh);
298 posix_acl_release(resp->acl_access);
299 posix_acl_release(resp->acl_default);
300 return 1;
301}
302
303static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
304 struct nfsd_attrstat *resp)
305{
306 fh_put(&resp->fh);
307 return 1;
308}
309
310static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
311 struct nfsd3_accessres *resp)
312{
313 fh_put(&resp->fh);
314 return 1;
315}
316
317#define nfsaclsvc_decode_voidargs NULL
318#define nfsaclsvc_release_void NULL
319#define nfsd3_fhandleargs nfsd_fhandle
320#define nfsd3_attrstatres nfsd_attrstat
321#define nfsd3_voidres nfsd3_voidargs
322struct nfsd3_voidargs { int dummy; };
323
324#define PROC(name, argt, rest, relt, cache, respsize) \
325 { (svc_procfunc) nfsacld_proc_##name, \
326 (kxdrproc_t) nfsaclsvc_decode_##argt##args, \
327 (kxdrproc_t) nfsaclsvc_encode_##rest##res, \
328 (kxdrproc_t) nfsaclsvc_release_##relt, \
329 sizeof(struct nfsd3_##argt##args), \
330 sizeof(struct nfsd3_##rest##res), \
331 0, \
332 cache, \
333 respsize, \
334 }
335
336#define ST 1 /* status*/
337#define AT 21 /* attributes */
338#define pAT (1+AT) /* post attributes - conditional */
339#define ACL (1+NFS_ACL_MAX_ENTRIES*3) /* Access Control List */
340
341static struct svc_procedure nfsd_acl_procedures2[] = {
342 PROC(null, void, void, void, RC_NOCACHE, ST),
343 PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)),
344 PROC(setacl, setacl, attrstat, attrstat, RC_NOCACHE, ST+AT),
345 PROC(getattr, fhandle, attrstat, attrstat, RC_NOCACHE, ST+AT),
346 PROC(access, access, access, access, RC_NOCACHE, ST+AT+1),
347};
348
349struct svc_version nfsd_acl_version2 = {
350 .vs_vers = 2,
351 .vs_nproc = 5,
352 .vs_proc = nfsd_acl_procedures2,
353 .vs_dispatch = nfsd_dispatch,
354 .vs_xdrsize = NFS3_SVC_XDRSIZE,
355 .vs_hidden = 0,
356};