1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)nfs.h 8.1 (Berkeley) 6/10/93
| 1/*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)nfs.h 8.1 (Berkeley) 6/10/93
|
40/*
41 * Tunable constants for nfs
42 */
43
44#define NFS_MAXIOVEC 34
45#define NFS_HZ 25 /* Ticks per second for NFS timeouts */
46#define NFS_TIMEO (1*NFS_HZ) /* Default timeout = 1 second */
47#define NFS_MINTIMEO (1*NFS_HZ) /* Min timeout to use */
48#define NFS_MAXTIMEO (60*NFS_HZ) /* Max timeout to backoff to */
49#define NFS_MINIDEMTIMEO (5*NFS_HZ) /* Min timeout for non-idempotent ops*/
50#define NFS_MAXREXMIT 100 /* Stop counting after this many */
51#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
52#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
53#define NFS_MAXGRPS 16 /* Max. size of groups list */
54#ifndef NFS_MINATTRTIMO
55#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
56#endif
57#ifndef NFS_MAXATTRTIMO
58#define NFS_MAXATTRTIMO 60
59#endif
60#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
61#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
62#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
63#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
64#define NFS_MAXREADDIR NFS_MAXDATA /* Max. size of directory read */
65#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
66#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runable */
67#define NFS_DIRBLKSIZ 1024 /* Size of an NFS directory block */
68#define NMOD(a) ((a) % nfs_asyncdaemons)
69
70/*
71 * Set the attribute timeout based on how recently the file has been modified.
72 */
73#define NFS_ATTRTIMEO(np) \
74 ((((np)->n_flag & NMODIFIED) || \
75 (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \
76 ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \
77 (time.tv_sec - (np)->n_mtime) / 10))
78
79/*
80 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
81 * should ever try and use it.
82 */
83struct nfsd_args {
84 int sock; /* Socket to serve */
85 caddr_t name; /* Client address for connection based sockets */
86 int namelen; /* Length of name */
87};
88
89struct nfsd_srvargs {
90 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
91 uid_t nsd_uid; /* Effective uid mapped to cred */
92 u_long nsd_haddr; /* Ip address of client */
93 struct ucred nsd_cr; /* Cred. uid maps to */
94 int nsd_authlen; /* Length of auth string (ret) */
95 char *nsd_authstr; /* Auth string (ret) */
96};
97
98struct nfsd_cargs {
99 char *ncd_dirp; /* Mount dir path */
100 uid_t ncd_authuid; /* Effective uid */
101 int ncd_authtype; /* Type of authenticator */
102 int ncd_authlen; /* Length of authenticator string */
103 char *ncd_authstr; /* Authenticator string */
104};
105
106/*
107 * Stats structure
108 */
109struct nfsstats {
110 int attrcache_hits;
111 int attrcache_misses;
112 int lookupcache_hits;
113 int lookupcache_misses;
114 int direofcache_hits;
115 int direofcache_misses;
116 int biocache_reads;
117 int read_bios;
118 int read_physios;
119 int biocache_writes;
120 int write_bios;
121 int write_physios;
122 int biocache_readlinks;
123 int readlink_bios;
124 int biocache_readdirs;
125 int readdir_bios;
126 int rpccnt[NFS_NPROCS];
127 int rpcretries;
128 int srvrpccnt[NFS_NPROCS];
129 int srvrpc_errs;
130 int srv_errs;
131 int rpcrequests;
132 int rpctimeouts;
133 int rpcunexpected;
134 int rpcinvalid;
135 int srvcache_inproghits;
136 int srvcache_idemdonehits;
137 int srvcache_nonidemdonehits;
138 int srvcache_misses;
139 int srvnqnfs_leases;
140 int srvnqnfs_maxleases;
141 int srvnqnfs_getleases;
142};
143
144/*
145 * Flags for nfssvc() system call.
146 */
147#define NFSSVC_BIOD 0x002
148#define NFSSVC_NFSD 0x004
149#define NFSSVC_ADDSOCK 0x008
150#define NFSSVC_AUTHIN 0x010
151#define NFSSVC_GOTAUTH 0x040
152#define NFSSVC_AUTHINFAIL 0x080
153#define NFSSVC_MNTD 0x100
154
155/*
156 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
157 * What should be in this set is open to debate, but I believe that since
158 * I/O system calls on ufs are never interrupted by signals the set should
159 * be minimal. My reasoning is that many current programs that use signals
160 * such as SIGALRM will not expect file I/O system calls to be interrupted
161 * by them and break.
162 */
163#ifdef KERNEL
164#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
165 sigmask(SIGHUP)|sigmask(SIGQUIT))
166
167/*
168 * Socket errors ignored for connectionless sockets??
169 * For now, ignore them all
170 */
171#define NFSIGNORE_SOERROR(s, e) \
172 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
173 ((s) & PR_CONNREQUIRED) == 0)
174
175/*
176 * Nfs outstanding request list element
177 */
178struct nfsreq {
179 struct nfsreq *r_next;
180 struct nfsreq *r_prev;
181 struct mbuf *r_mreq;
182 struct mbuf *r_mrep;
183 struct mbuf *r_md;
184 caddr_t r_dpos;
185 struct nfsmount *r_nmp;
186 struct vnode *r_vp;
187 u_long r_xid;
188 int r_flags; /* flags on request, see below */
189 int r_retry; /* max retransmission count */
190 int r_rexmit; /* current retrans count */
191 int r_timer; /* tick counter on reply */
192 int r_procnum; /* NFS procedure number */
193 int r_rtt; /* RTT for rpc */
194 struct proc *r_procp; /* Proc that did I/O system call */
195};
196
197/* Flag values for r_flags */
198#define R_TIMING 0x01 /* timing request (in mntp) */
199#define R_SENT 0x02 /* request has been sent */
200#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
201#define R_INTR 0x08 /* intr mnt, signal pending */
202#define R_SOCKERR 0x10 /* Fatal error on socket */
203#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
204#define R_MUSTRESEND 0x40 /* Must resend request */
205#define R_GETONEREP 0x80 /* Probe for one reply only */
206
207struct nfsstats nfsstats;
208
209/*
210 * A list of nfssvc_sock structures is maintained with all the sockets
211 * that require service by the nfsd.
212 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
213 * and uid hash lists.
214 */
215#define NUIDHASHSIZ 32
216#define NUIDHASH(uid) ((uid) & (NUIDHASHSIZ - 1))
217
218/*
219 * Network address hash list element
220 */
221union nethostaddr {
222 u_long had_inetaddr;
223 struct mbuf *had_nam;
224};
225
226struct nfsuid {
227 struct nfsuid *nu_lrunext; /* MUST be first */
228 struct nfsuid *nu_lruprev;
229 struct nfsuid *nu_hnext;
230 struct nfsuid *nu_hprev;
231 int nu_flag; /* Flags */
232 uid_t nu_uid; /* Uid mapped by this entry */
233 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
234 struct ucred nu_cr; /* Cred uid mapped to */
235};
236
237#define nu_inetaddr nu_haddr.had_inetaddr
238#define nu_nam nu_haddr.had_nam
239/* Bits for nu_flag */
240#define NU_INETADDR 0x1
241
242struct nfssvc_sock {
243 struct nfsuid *ns_lrunext; /* MUST be first */
244 struct nfsuid *ns_lruprev;
245 struct nfssvc_sock *ns_next;
246 struct nfssvc_sock *ns_prev;
247 int ns_flag;
248 u_long ns_sref;
249 struct file *ns_fp;
250 struct socket *ns_so;
251 int ns_solock;
252 struct mbuf *ns_nam;
253 int ns_cc;
254 struct mbuf *ns_raw;
255 struct mbuf *ns_rawend;
256 int ns_reclen;
257 struct mbuf *ns_rec;
258 struct mbuf *ns_recend;
259 int ns_numuids;
260 struct nfsuid *ns_uidh[NUIDHASHSIZ];
261};
262
263/* Bits for "ns_flag" */
264#define SLP_VALID 0x01
265#define SLP_DOREC 0x02
266#define SLP_NEEDQ 0x04
267#define SLP_DISCONN 0x08
268#define SLP_GETSTREAM 0x10
269#define SLP_INIT 0x20
270#define SLP_WANTINIT 0x40
271
272#define SLP_ALLFLAGS 0xff
273
274/*
275 * One of these structures is allocated for each nfsd.
276 */
277struct nfsd {
278 struct nfsd *nd_next; /* Must be first */
279 struct nfsd *nd_prev;
280 int nd_flag; /* NFSD_ flags */
281 struct nfssvc_sock *nd_slp; /* Current socket */
282 struct mbuf *nd_nam; /* Client addr for datagram req. */
283 struct mbuf *nd_mrep; /* Req. mbuf list */
284 struct mbuf *nd_md;
285 caddr_t nd_dpos; /* Position in list */
286 int nd_procnum; /* RPC procedure number */
287 u_long nd_retxid; /* RPC xid */
288 int nd_repstat; /* Reply status value */
289 struct ucred nd_cr; /* Credentials for req. */
290 int nd_nqlflag; /* Leasing flag */
291 int nd_duration; /* Lease duration */
292 int nd_authlen; /* Authenticator len */
293 u_char nd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
294 struct proc *nd_procp; /* Proc ptr */
295};
296
297#define NFSD_WAITING 0x01
298#define NFSD_CHECKSLP 0x02
299#define NFSD_REQINPROG 0x04
300#define NFSD_NEEDAUTH 0x08
301#define NFSD_AUTHFAIL 0x10
302#endif /* KERNEL */
| 43/*
44 * Tunable constants for nfs
45 */
46
47#define NFS_MAXIOVEC 34
48#define NFS_HZ 25 /* Ticks per second for NFS timeouts */
49#define NFS_TIMEO (1*NFS_HZ) /* Default timeout = 1 second */
50#define NFS_MINTIMEO (1*NFS_HZ) /* Min timeout to use */
51#define NFS_MAXTIMEO (60*NFS_HZ) /* Max timeout to backoff to */
52#define NFS_MINIDEMTIMEO (5*NFS_HZ) /* Min timeout for non-idempotent ops*/
53#define NFS_MAXREXMIT 100 /* Stop counting after this many */
54#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
55#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
56#define NFS_MAXGRPS 16 /* Max. size of groups list */
57#ifndef NFS_MINATTRTIMO
58#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
59#endif
60#ifndef NFS_MAXATTRTIMO
61#define NFS_MAXATTRTIMO 60
62#endif
63#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
64#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
65#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
66#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
67#define NFS_MAXREADDIR NFS_MAXDATA /* Max. size of directory read */
68#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
69#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runable */
70#define NFS_DIRBLKSIZ 1024 /* Size of an NFS directory block */
71#define NMOD(a) ((a) % nfs_asyncdaemons)
72
73/*
74 * Set the attribute timeout based on how recently the file has been modified.
75 */
76#define NFS_ATTRTIMEO(np) \
77 ((((np)->n_flag & NMODIFIED) || \
78 (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \
79 ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \
80 (time.tv_sec - (np)->n_mtime) / 10))
81
82/*
83 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
84 * should ever try and use it.
85 */
86struct nfsd_args {
87 int sock; /* Socket to serve */
88 caddr_t name; /* Client address for connection based sockets */
89 int namelen; /* Length of name */
90};
91
92struct nfsd_srvargs {
93 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
94 uid_t nsd_uid; /* Effective uid mapped to cred */
95 u_long nsd_haddr; /* Ip address of client */
96 struct ucred nsd_cr; /* Cred. uid maps to */
97 int nsd_authlen; /* Length of auth string (ret) */
98 char *nsd_authstr; /* Auth string (ret) */
99};
100
101struct nfsd_cargs {
102 char *ncd_dirp; /* Mount dir path */
103 uid_t ncd_authuid; /* Effective uid */
104 int ncd_authtype; /* Type of authenticator */
105 int ncd_authlen; /* Length of authenticator string */
106 char *ncd_authstr; /* Authenticator string */
107};
108
109/*
110 * Stats structure
111 */
112struct nfsstats {
113 int attrcache_hits;
114 int attrcache_misses;
115 int lookupcache_hits;
116 int lookupcache_misses;
117 int direofcache_hits;
118 int direofcache_misses;
119 int biocache_reads;
120 int read_bios;
121 int read_physios;
122 int biocache_writes;
123 int write_bios;
124 int write_physios;
125 int biocache_readlinks;
126 int readlink_bios;
127 int biocache_readdirs;
128 int readdir_bios;
129 int rpccnt[NFS_NPROCS];
130 int rpcretries;
131 int srvrpccnt[NFS_NPROCS];
132 int srvrpc_errs;
133 int srv_errs;
134 int rpcrequests;
135 int rpctimeouts;
136 int rpcunexpected;
137 int rpcinvalid;
138 int srvcache_inproghits;
139 int srvcache_idemdonehits;
140 int srvcache_nonidemdonehits;
141 int srvcache_misses;
142 int srvnqnfs_leases;
143 int srvnqnfs_maxleases;
144 int srvnqnfs_getleases;
145};
146
147/*
148 * Flags for nfssvc() system call.
149 */
150#define NFSSVC_BIOD 0x002
151#define NFSSVC_NFSD 0x004
152#define NFSSVC_ADDSOCK 0x008
153#define NFSSVC_AUTHIN 0x010
154#define NFSSVC_GOTAUTH 0x040
155#define NFSSVC_AUTHINFAIL 0x080
156#define NFSSVC_MNTD 0x100
157
158/*
159 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
160 * What should be in this set is open to debate, but I believe that since
161 * I/O system calls on ufs are never interrupted by signals the set should
162 * be minimal. My reasoning is that many current programs that use signals
163 * such as SIGALRM will not expect file I/O system calls to be interrupted
164 * by them and break.
165 */
166#ifdef KERNEL
167#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
168 sigmask(SIGHUP)|sigmask(SIGQUIT))
169
170/*
171 * Socket errors ignored for connectionless sockets??
172 * For now, ignore them all
173 */
174#define NFSIGNORE_SOERROR(s, e) \
175 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
176 ((s) & PR_CONNREQUIRED) == 0)
177
178/*
179 * Nfs outstanding request list element
180 */
181struct nfsreq {
182 struct nfsreq *r_next;
183 struct nfsreq *r_prev;
184 struct mbuf *r_mreq;
185 struct mbuf *r_mrep;
186 struct mbuf *r_md;
187 caddr_t r_dpos;
188 struct nfsmount *r_nmp;
189 struct vnode *r_vp;
190 u_long r_xid;
191 int r_flags; /* flags on request, see below */
192 int r_retry; /* max retransmission count */
193 int r_rexmit; /* current retrans count */
194 int r_timer; /* tick counter on reply */
195 int r_procnum; /* NFS procedure number */
196 int r_rtt; /* RTT for rpc */
197 struct proc *r_procp; /* Proc that did I/O system call */
198};
199
200/* Flag values for r_flags */
201#define R_TIMING 0x01 /* timing request (in mntp) */
202#define R_SENT 0x02 /* request has been sent */
203#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
204#define R_INTR 0x08 /* intr mnt, signal pending */
205#define R_SOCKERR 0x10 /* Fatal error on socket */
206#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
207#define R_MUSTRESEND 0x40 /* Must resend request */
208#define R_GETONEREP 0x80 /* Probe for one reply only */
209
210struct nfsstats nfsstats;
211
212/*
213 * A list of nfssvc_sock structures is maintained with all the sockets
214 * that require service by the nfsd.
215 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
216 * and uid hash lists.
217 */
218#define NUIDHASHSIZ 32
219#define NUIDHASH(uid) ((uid) & (NUIDHASHSIZ - 1))
220
221/*
222 * Network address hash list element
223 */
224union nethostaddr {
225 u_long had_inetaddr;
226 struct mbuf *had_nam;
227};
228
229struct nfsuid {
230 struct nfsuid *nu_lrunext; /* MUST be first */
231 struct nfsuid *nu_lruprev;
232 struct nfsuid *nu_hnext;
233 struct nfsuid *nu_hprev;
234 int nu_flag; /* Flags */
235 uid_t nu_uid; /* Uid mapped by this entry */
236 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
237 struct ucred nu_cr; /* Cred uid mapped to */
238};
239
240#define nu_inetaddr nu_haddr.had_inetaddr
241#define nu_nam nu_haddr.had_nam
242/* Bits for nu_flag */
243#define NU_INETADDR 0x1
244
245struct nfssvc_sock {
246 struct nfsuid *ns_lrunext; /* MUST be first */
247 struct nfsuid *ns_lruprev;
248 struct nfssvc_sock *ns_next;
249 struct nfssvc_sock *ns_prev;
250 int ns_flag;
251 u_long ns_sref;
252 struct file *ns_fp;
253 struct socket *ns_so;
254 int ns_solock;
255 struct mbuf *ns_nam;
256 int ns_cc;
257 struct mbuf *ns_raw;
258 struct mbuf *ns_rawend;
259 int ns_reclen;
260 struct mbuf *ns_rec;
261 struct mbuf *ns_recend;
262 int ns_numuids;
263 struct nfsuid *ns_uidh[NUIDHASHSIZ];
264};
265
266/* Bits for "ns_flag" */
267#define SLP_VALID 0x01
268#define SLP_DOREC 0x02
269#define SLP_NEEDQ 0x04
270#define SLP_DISCONN 0x08
271#define SLP_GETSTREAM 0x10
272#define SLP_INIT 0x20
273#define SLP_WANTINIT 0x40
274
275#define SLP_ALLFLAGS 0xff
276
277/*
278 * One of these structures is allocated for each nfsd.
279 */
280struct nfsd {
281 struct nfsd *nd_next; /* Must be first */
282 struct nfsd *nd_prev;
283 int nd_flag; /* NFSD_ flags */
284 struct nfssvc_sock *nd_slp; /* Current socket */
285 struct mbuf *nd_nam; /* Client addr for datagram req. */
286 struct mbuf *nd_mrep; /* Req. mbuf list */
287 struct mbuf *nd_md;
288 caddr_t nd_dpos; /* Position in list */
289 int nd_procnum; /* RPC procedure number */
290 u_long nd_retxid; /* RPC xid */
291 int nd_repstat; /* Reply status value */
292 struct ucred nd_cr; /* Credentials for req. */
293 int nd_nqlflag; /* Leasing flag */
294 int nd_duration; /* Lease duration */
295 int nd_authlen; /* Authenticator len */
296 u_char nd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
297 struct proc *nd_procp; /* Proc ptr */
298};
299
300#define NFSD_WAITING 0x01
301#define NFSD_CHECKSLP 0x02
302#define NFSD_REQINPROG 0x04
303#define NFSD_NEEDAUTH 0x08
304#define NFSD_AUTHFAIL 0x10
305#endif /* KERNEL */
|