1 #include <linux/types.h>
2 #include <linux/sched.h>
3 #include <linux/module.h>
4 #include <linux/sunrpc/types.h>
5 #include <linux/sunrpc/xdr.h>
6 #include <linux/sunrpc/svcsock.h>
7 #include <linux/sunrpc/svcauth.h>
8 #include <linux/sunrpc/gss_api.h>
10 #include <linux/seq_file.h>
11 #include <linux/hash.h>
12 #include <linux/string.h>
13 #include <linux/slab.h>
16 #include <linux/kernel.h>
17 #include <linux/user_namespace.h>
18 #define RPCDBG_FACILITY RPCDBG_AUTH
20 #include <linux/sunrpc/clnt.h>
25 * AUTHUNIX and AUTHNULL credentials are both handled here.
26 * AUTHNULL is treated just like AUTHUNIX except that the uid/gid
27 * are always nobody (-2). i.e. we do the same IP address checks for
28 * AUTHNULL as for AUTHUNIX, and that is done here.
34 /* other stuff later */
37 extern struct auth_ops svcauth_null
;
38 extern struct auth_ops svcauth_unix
;
40 static void svcauth_unix_domain_release(struct auth_domain
*dom
)
42 struct unix_domain
*ud
= container_of(dom
, struct unix_domain
, h
);
48 struct auth_domain
*unix_domain_find(char *name
)
50 struct auth_domain
*rv
;
51 struct unix_domain
*new = NULL
;
53 rv
= auth_domain_lookup(name
, NULL
);
56 if (new && rv
!= &new->h
)
57 svcauth_unix_domain_release(&new->h
);
59 if (rv
->flavour
!= &svcauth_unix
) {
66 new = kmalloc(sizeof(*new), GFP_KERNEL
);
69 kref_init(&new->h
.ref
);
70 new->h
.name
= kstrdup(name
, GFP_KERNEL
);
71 if (new->h
.name
== NULL
) {
75 new->h
.flavour
= &svcauth_unix
;
76 rv
= auth_domain_lookup(name
, &new->h
);
79 EXPORT_SYMBOL_GPL(unix_domain_find
);
82 /**************************************************
83 * cache for IP address to unix_domain
84 * as needed by AUTH_UNIX
87 #define IP_HASHMAX (1<<IP_HASHBITS)
91 char m_class
[8]; /* e.g. "nfsd" */
92 struct in6_addr m_addr
;
93 struct unix_domain
*m_client
;
96 static void ip_map_put(struct kref
*kref
)
98 struct cache_head
*item
= container_of(kref
, struct cache_head
, ref
);
99 struct ip_map
*im
= container_of(item
, struct ip_map
,h
);
101 if (test_bit(CACHE_VALID
, &item
->flags
) &&
102 !test_bit(CACHE_NEGATIVE
, &item
->flags
))
103 auth_domain_put(&im
->m_client
->h
);
107 static inline int hash_ip6(const struct in6_addr
*ip
)
109 return hash_32(ipv6_addr_hash(ip
), IP_HASHBITS
);
111 static int ip_map_match(struct cache_head
*corig
, struct cache_head
*cnew
)
113 struct ip_map
*orig
= container_of(corig
, struct ip_map
, h
);
114 struct ip_map
*new = container_of(cnew
, struct ip_map
, h
);
115 return strcmp(orig
->m_class
, new->m_class
) == 0 &&
116 ipv6_addr_equal(&orig
->m_addr
, &new->m_addr
);
118 static void ip_map_init(struct cache_head
*cnew
, struct cache_head
*citem
)
120 struct ip_map
*new = container_of(cnew
, struct ip_map
, h
);
121 struct ip_map
*item
= container_of(citem
, struct ip_map
, h
);
123 strcpy(new->m_class
, item
->m_class
);
124 new->m_addr
= item
->m_addr
;
126 static void update(struct cache_head
*cnew
, struct cache_head
*citem
)
128 struct ip_map
*new = container_of(cnew
, struct ip_map
, h
);
129 struct ip_map
*item
= container_of(citem
, struct ip_map
, h
);
131 kref_get(&item
->m_client
->h
.ref
);
132 new->m_client
= item
->m_client
;
134 static struct cache_head
*ip_map_alloc(void)
136 struct ip_map
*i
= kmalloc(sizeof(*i
), GFP_KERNEL
);
143 static void ip_map_request(struct cache_detail
*cd
,
144 struct cache_head
*h
,
145 char **bpp
, int *blen
)
148 struct ip_map
*im
= container_of(h
, struct ip_map
, h
);
150 if (ipv6_addr_v4mapped(&(im
->m_addr
))) {
151 snprintf(text_addr
, 20, "%pI4", &im
->m_addr
.s6_addr32
[3]);
153 snprintf(text_addr
, 40, "%pI6", &im
->m_addr
);
155 qword_add(bpp
, blen
, im
->m_class
);
156 qword_add(bpp
, blen
, text_addr
);
160 static int ip_map_upcall(struct cache_detail
*cd
, struct cache_head
*h
)
162 return sunrpc_cache_pipe_upcall(cd
, h
, ip_map_request
);
165 static struct ip_map
*__ip_map_lookup(struct cache_detail
*cd
, char *class, struct in6_addr
*addr
);
166 static int __ip_map_update(struct cache_detail
*cd
, struct ip_map
*ipm
, struct unix_domain
*udom
, time_t expiry
);
168 static int ip_map_parse(struct cache_detail
*cd
,
169 char *mesg
, int mlen
)
171 /* class ipaddress [domainname] */
172 /* should be safe just to use the start of the input buffer
179 struct sockaddr_in s4
;
180 struct sockaddr_in6 s6
;
182 struct sockaddr_in6 sin6
;
186 struct auth_domain
*dom
;
189 if (mesg
[mlen
-1] != '\n')
194 len
= qword_get(&mesg
, class, sizeof(class));
195 if (len
<= 0) return -EINVAL
;
198 len
= qword_get(&mesg
, buf
, mlen
);
199 if (len
<= 0) return -EINVAL
;
201 if (rpc_pton(cd
->net
, buf
, len
, &address
.sa
, sizeof(address
)) == 0)
203 switch (address
.sa
.sa_family
) {
205 /* Form a mapped IPv4 address in sin6 */
206 sin6
.sin6_family
= AF_INET6
;
207 ipv6_addr_set_v4mapped(address
.s4
.sin_addr
.s_addr
,
210 #if IS_ENABLED(CONFIG_IPV6)
212 memcpy(&sin6
, &address
.s6
, sizeof(sin6
));
219 expiry
= get_expiry(&mesg
);
223 /* domainname, or empty for NEGATIVE */
224 len
= qword_get(&mesg
, buf
, mlen
);
225 if (len
< 0) return -EINVAL
;
228 dom
= unix_domain_find(buf
);
234 /* IPv6 scope IDs are ignored for now */
235 ipmp
= __ip_map_lookup(cd
, class, &sin6
.sin6_addr
);
237 err
= __ip_map_update(cd
, ipmp
,
238 container_of(dom
, struct unix_domain
, h
),
244 auth_domain_put(dom
);
250 static int ip_map_show(struct seq_file
*m
,
251 struct cache_detail
*cd
,
252 struct cache_head
*h
)
255 struct in6_addr addr
;
256 char *dom
= "-no-domain-";
259 seq_puts(m
, "#class IP domain\n");
262 im
= container_of(h
, struct ip_map
, h
);
263 /* class addr domain */
266 if (test_bit(CACHE_VALID
, &h
->flags
) &&
267 !test_bit(CACHE_NEGATIVE
, &h
->flags
))
268 dom
= im
->m_client
->h
.name
;
270 if (ipv6_addr_v4mapped(&addr
)) {
271 seq_printf(m
, "%s %pI4 %s\n",
272 im
->m_class
, &addr
.s6_addr32
[3], dom
);
274 seq_printf(m
, "%s %pI6 %s\n", im
->m_class
, &addr
, dom
);
280 static struct ip_map
*__ip_map_lookup(struct cache_detail
*cd
, char *class,
281 struct in6_addr
*addr
)
284 struct cache_head
*ch
;
286 strcpy(ip
.m_class
, class);
288 ch
= sunrpc_cache_lookup(cd
, &ip
.h
,
289 hash_str(class, IP_HASHBITS
) ^
293 return container_of(ch
, struct ip_map
, h
);
298 static inline struct ip_map
*ip_map_lookup(struct net
*net
, char *class,
299 struct in6_addr
*addr
)
301 struct sunrpc_net
*sn
;
303 sn
= net_generic(net
, sunrpc_net_id
);
304 return __ip_map_lookup(sn
->ip_map_cache
, class, addr
);
307 static int __ip_map_update(struct cache_detail
*cd
, struct ip_map
*ipm
,
308 struct unix_domain
*udom
, time_t expiry
)
311 struct cache_head
*ch
;
316 set_bit(CACHE_NEGATIVE
, &ip
.h
.flags
);
317 ip
.h
.expiry_time
= expiry
;
318 ch
= sunrpc_cache_update(cd
, &ip
.h
, &ipm
->h
,
319 hash_str(ipm
->m_class
, IP_HASHBITS
) ^
320 hash_ip6(&ipm
->m_addr
));
327 static inline int ip_map_update(struct net
*net
, struct ip_map
*ipm
,
328 struct unix_domain
*udom
, time_t expiry
)
330 struct sunrpc_net
*sn
;
332 sn
= net_generic(net
, sunrpc_net_id
);
333 return __ip_map_update(sn
->ip_map_cache
, ipm
, udom
, expiry
);
336 void svcauth_unix_purge(struct net
*net
)
338 struct sunrpc_net
*sn
;
340 sn
= net_generic(net
, sunrpc_net_id
);
341 cache_purge(sn
->ip_map_cache
);
343 EXPORT_SYMBOL_GPL(svcauth_unix_purge
);
345 static inline struct ip_map
*
346 ip_map_cached_get(struct svc_xprt
*xprt
)
348 struct ip_map
*ipm
= NULL
;
349 struct sunrpc_net
*sn
;
351 if (test_bit(XPT_CACHE_AUTH
, &xprt
->xpt_flags
)) {
352 spin_lock(&xprt
->xpt_lock
);
353 ipm
= xprt
->xpt_auth_cache
;
355 if (!cache_valid(&ipm
->h
)) {
357 * The entry has been invalidated since it was
358 * remembered, e.g. by a second mount from the
361 sn
= net_generic(xprt
->xpt_net
, sunrpc_net_id
);
362 xprt
->xpt_auth_cache
= NULL
;
363 spin_unlock(&xprt
->xpt_lock
);
364 cache_put(&ipm
->h
, sn
->ip_map_cache
);
369 spin_unlock(&xprt
->xpt_lock
);
375 ip_map_cached_put(struct svc_xprt
*xprt
, struct ip_map
*ipm
)
377 if (test_bit(XPT_CACHE_AUTH
, &xprt
->xpt_flags
)) {
378 spin_lock(&xprt
->xpt_lock
);
379 if (xprt
->xpt_auth_cache
== NULL
) {
380 /* newly cached, keep the reference */
381 xprt
->xpt_auth_cache
= ipm
;
384 spin_unlock(&xprt
->xpt_lock
);
387 struct sunrpc_net
*sn
;
389 sn
= net_generic(xprt
->xpt_net
, sunrpc_net_id
);
390 cache_put(&ipm
->h
, sn
->ip_map_cache
);
395 svcauth_unix_info_release(struct svc_xprt
*xpt
)
399 ipm
= xpt
->xpt_auth_cache
;
401 struct sunrpc_net
*sn
;
403 sn
= net_generic(xpt
->xpt_net
, sunrpc_net_id
);
404 cache_put(&ipm
->h
, sn
->ip_map_cache
);
408 /****************************************************************************
409 * auth.unix.gid cache
410 * simple cache to map a UID to a list of GIDs
411 * because AUTH_UNIX aka AUTH_SYS has a max of 16
413 #define GID_HASHBITS 8
414 #define GID_HASHMAX (1<<GID_HASHBITS)
419 struct group_info
*gi
;
422 static void unix_gid_put(struct kref
*kref
)
424 struct cache_head
*item
= container_of(kref
, struct cache_head
, ref
);
425 struct unix_gid
*ug
= container_of(item
, struct unix_gid
, h
);
426 if (test_bit(CACHE_VALID
, &item
->flags
) &&
427 !test_bit(CACHE_NEGATIVE
, &item
->flags
))
428 put_group_info(ug
->gi
);
432 static int unix_gid_match(struct cache_head
*corig
, struct cache_head
*cnew
)
434 struct unix_gid
*orig
= container_of(corig
, struct unix_gid
, h
);
435 struct unix_gid
*new = container_of(cnew
, struct unix_gid
, h
);
436 return orig
->uid
== new->uid
;
438 static void unix_gid_init(struct cache_head
*cnew
, struct cache_head
*citem
)
440 struct unix_gid
*new = container_of(cnew
, struct unix_gid
, h
);
441 struct unix_gid
*item
= container_of(citem
, struct unix_gid
, h
);
442 new->uid
= item
->uid
;
444 static void unix_gid_update(struct cache_head
*cnew
, struct cache_head
*citem
)
446 struct unix_gid
*new = container_of(cnew
, struct unix_gid
, h
);
447 struct unix_gid
*item
= container_of(citem
, struct unix_gid
, h
);
449 get_group_info(item
->gi
);
452 static struct cache_head
*unix_gid_alloc(void)
454 struct unix_gid
*g
= kmalloc(sizeof(*g
), GFP_KERNEL
);
461 static void unix_gid_request(struct cache_detail
*cd
,
462 struct cache_head
*h
,
463 char **bpp
, int *blen
)
466 struct unix_gid
*ug
= container_of(h
, struct unix_gid
, h
);
468 snprintf(tuid
, 20, "%u", ug
->uid
);
469 qword_add(bpp
, blen
, tuid
);
473 static int unix_gid_upcall(struct cache_detail
*cd
, struct cache_head
*h
)
475 return sunrpc_cache_pipe_upcall(cd
, h
, unix_gid_request
);
478 static struct unix_gid
*unix_gid_lookup(struct cache_detail
*cd
, uid_t uid
);
480 static int unix_gid_parse(struct cache_detail
*cd
,
481 char *mesg
, int mlen
)
483 /* uid expiry Ngid gid0 gid1 ... gidN-1 */
490 struct unix_gid ug
, *ugp
;
492 if (mesg
[mlen
- 1] != '\n')
496 rv
= get_int(&mesg
, &uid
);
501 expiry
= get_expiry(&mesg
);
505 rv
= get_int(&mesg
, &gids
);
506 if (rv
|| gids
< 0 || gids
> 8192)
509 ug
.gi
= groups_alloc(gids
);
513 for (i
= 0 ; i
< gids
; i
++) {
516 rv
= get_int(&mesg
, &gid
);
520 kgid
= make_kgid(&init_user_ns
, gid
);
521 if (!gid_valid(kgid
))
523 GROUP_AT(ug
.gi
, i
) = kgid
;
526 ugp
= unix_gid_lookup(cd
, uid
);
528 struct cache_head
*ch
;
530 ug
.h
.expiry_time
= expiry
;
531 ch
= sunrpc_cache_update(cd
,
533 hash_long(uid
, GID_HASHBITS
));
544 put_group_info(ug
.gi
);
548 static int unix_gid_show(struct seq_file
*m
,
549 struct cache_detail
*cd
,
550 struct cache_head
*h
)
552 struct user_namespace
*user_ns
= current_user_ns();
558 seq_puts(m
, "#uid cnt: gids...\n");
561 ug
= container_of(h
, struct unix_gid
, h
);
562 if (test_bit(CACHE_VALID
, &h
->flags
) &&
563 !test_bit(CACHE_NEGATIVE
, &h
->flags
))
564 glen
= ug
->gi
->ngroups
;
568 seq_printf(m
, "%u %d:", ug
->uid
, glen
);
569 for (i
= 0; i
< glen
; i
++)
570 seq_printf(m
, " %d", from_kgid_munged(user_ns
, GROUP_AT(ug
->gi
, i
)));
575 static struct cache_detail unix_gid_cache_template
= {
576 .owner
= THIS_MODULE
,
577 .hash_size
= GID_HASHMAX
,
578 .name
= "auth.unix.gid",
579 .cache_put
= unix_gid_put
,
580 .cache_upcall
= unix_gid_upcall
,
581 .cache_parse
= unix_gid_parse
,
582 .cache_show
= unix_gid_show
,
583 .match
= unix_gid_match
,
584 .init
= unix_gid_init
,
585 .update
= unix_gid_update
,
586 .alloc
= unix_gid_alloc
,
589 int unix_gid_cache_create(struct net
*net
)
591 struct sunrpc_net
*sn
= net_generic(net
, sunrpc_net_id
);
592 struct cache_detail
*cd
;
595 cd
= cache_create_net(&unix_gid_cache_template
, net
);
598 err
= cache_register_net(cd
, net
);
600 cache_destroy_net(cd
, net
);
603 sn
->unix_gid_cache
= cd
;
607 void unix_gid_cache_destroy(struct net
*net
)
609 struct sunrpc_net
*sn
= net_generic(net
, sunrpc_net_id
);
610 struct cache_detail
*cd
= sn
->unix_gid_cache
;
612 sn
->unix_gid_cache
= NULL
;
614 cache_unregister_net(cd
, net
);
615 cache_destroy_net(cd
, net
);
618 static struct unix_gid
*unix_gid_lookup(struct cache_detail
*cd
, uid_t uid
)
621 struct cache_head
*ch
;
624 ch
= sunrpc_cache_lookup(cd
, &ug
.h
, hash_long(uid
, GID_HASHBITS
));
626 return container_of(ch
, struct unix_gid
, h
);
631 static struct group_info
*unix_gid_find(uid_t uid
, struct svc_rqst
*rqstp
)
634 struct group_info
*gi
;
636 struct sunrpc_net
*sn
= net_generic(rqstp
->rq_xprt
->xpt_net
,
639 ug
= unix_gid_lookup(sn
->unix_gid_cache
, uid
);
641 return ERR_PTR(-EAGAIN
);
642 ret
= cache_check(sn
->unix_gid_cache
, &ug
->h
, &rqstp
->rq_chandle
);
645 return ERR_PTR(-ENOENT
);
647 return ERR_PTR(-ESHUTDOWN
);
649 gi
= get_group_info(ug
->gi
);
650 cache_put(&ug
->h
, sn
->unix_gid_cache
);
653 return ERR_PTR(-EAGAIN
);
658 svcauth_unix_set_client(struct svc_rqst
*rqstp
)
660 struct sockaddr_in
*sin
;
661 struct sockaddr_in6
*sin6
, sin6_storage
;
663 struct group_info
*gi
;
664 struct svc_cred
*cred
= &rqstp
->rq_cred
;
665 struct svc_xprt
*xprt
= rqstp
->rq_xprt
;
666 struct net
*net
= xprt
->xpt_net
;
667 struct sunrpc_net
*sn
= net_generic(net
, sunrpc_net_id
);
669 switch (rqstp
->rq_addr
.ss_family
) {
671 sin
= svc_addr_in(rqstp
);
672 sin6
= &sin6_storage
;
673 ipv6_addr_set_v4mapped(sin
->sin_addr
.s_addr
, &sin6
->sin6_addr
);
676 sin6
= svc_addr_in6(rqstp
);
682 rqstp
->rq_client
= NULL
;
683 if (rqstp
->rq_proc
== 0)
686 ipm
= ip_map_cached_get(xprt
);
688 ipm
= __ip_map_lookup(sn
->ip_map_cache
, rqstp
->rq_server
->sv_program
->pg_class
,
694 switch (cache_check(sn
->ip_map_cache
, &ipm
->h
, &rqstp
->rq_chandle
)) {
704 rqstp
->rq_client
= &ipm
->m_client
->h
;
705 kref_get(&rqstp
->rq_client
->ref
);
706 ip_map_cached_put(xprt
, ipm
);
710 gi
= unix_gid_find(cred
->cr_uid
, rqstp
);
711 switch (PTR_ERR(gi
)) {
719 put_group_info(cred
->cr_group_info
);
720 cred
->cr_group_info
= gi
;
725 EXPORT_SYMBOL_GPL(svcauth_unix_set_client
);
728 svcauth_null_accept(struct svc_rqst
*rqstp
, __be32
*authp
)
730 struct kvec
*argv
= &rqstp
->rq_arg
.head
[0];
731 struct kvec
*resv
= &rqstp
->rq_res
.head
[0];
732 struct svc_cred
*cred
= &rqstp
->rq_cred
;
734 cred
->cr_group_info
= NULL
;
735 cred
->cr_principal
= NULL
;
736 rqstp
->rq_client
= NULL
;
738 if (argv
->iov_len
< 3*4)
741 if (svc_getu32(argv
) != 0) {
742 dprintk("svc: bad null cred\n");
743 *authp
= rpc_autherr_badcred
;
746 if (svc_getu32(argv
) != htonl(RPC_AUTH_NULL
) || svc_getu32(argv
) != 0) {
747 dprintk("svc: bad null verf\n");
748 *authp
= rpc_autherr_badverf
;
752 /* Signal that mapping to nobody uid/gid is required */
753 cred
->cr_uid
= (uid_t
) -1;
754 cred
->cr_gid
= (gid_t
) -1;
755 cred
->cr_group_info
= groups_alloc(0);
756 if (cred
->cr_group_info
== NULL
)
757 return SVC_CLOSE
; /* kmalloc failure - client must retry */
759 /* Put NULL verifier */
760 svc_putnl(resv
, RPC_AUTH_NULL
);
763 rqstp
->rq_cred
.cr_flavor
= RPC_AUTH_NULL
;
768 svcauth_null_release(struct svc_rqst
*rqstp
)
770 if (rqstp
->rq_client
)
771 auth_domain_put(rqstp
->rq_client
);
772 rqstp
->rq_client
= NULL
;
773 if (rqstp
->rq_cred
.cr_group_info
)
774 put_group_info(rqstp
->rq_cred
.cr_group_info
);
775 rqstp
->rq_cred
.cr_group_info
= NULL
;
777 return 0; /* don't drop */
781 struct auth_ops svcauth_null
= {
783 .owner
= THIS_MODULE
,
784 .flavour
= RPC_AUTH_NULL
,
785 .accept
= svcauth_null_accept
,
786 .release
= svcauth_null_release
,
787 .set_client
= svcauth_unix_set_client
,
792 svcauth_unix_accept(struct svc_rqst
*rqstp
, __be32
*authp
)
794 struct kvec
*argv
= &rqstp
->rq_arg
.head
[0];
795 struct kvec
*resv
= &rqstp
->rq_res
.head
[0];
796 struct svc_cred
*cred
= &rqstp
->rq_cred
;
798 int len
= argv
->iov_len
;
800 cred
->cr_group_info
= NULL
;
801 cred
->cr_principal
= NULL
;
802 rqstp
->rq_client
= NULL
;
804 if ((len
-= 3*4) < 0)
807 svc_getu32(argv
); /* length */
808 svc_getu32(argv
); /* time stamp */
809 slen
= XDR_QUADLEN(svc_getnl(argv
)); /* machname length */
810 if (slen
> 64 || (len
-= (slen
+ 3)*4) < 0)
812 argv
->iov_base
= (void*)((__be32
*)argv
->iov_base
+ slen
); /* skip machname */
813 argv
->iov_len
-= slen
*4;
815 cred
->cr_uid
= svc_getnl(argv
); /* uid */
816 cred
->cr_gid
= svc_getnl(argv
); /* gid */
817 slen
= svc_getnl(argv
); /* gids length */
818 if (slen
> 16 || (len
-= (slen
+ 2)*4) < 0)
820 cred
->cr_group_info
= groups_alloc(slen
);
821 if (cred
->cr_group_info
== NULL
)
823 for (i
= 0; i
< slen
; i
++) {
824 kgid_t kgid
= make_kgid(&init_user_ns
, svc_getnl(argv
));
825 if (!gid_valid(kgid
))
827 GROUP_AT(cred
->cr_group_info
, i
) = kgid
;
829 if (svc_getu32(argv
) != htonl(RPC_AUTH_NULL
) || svc_getu32(argv
) != 0) {
830 *authp
= rpc_autherr_badverf
;
834 /* Put NULL verifier */
835 svc_putnl(resv
, RPC_AUTH_NULL
);
838 rqstp
->rq_cred
.cr_flavor
= RPC_AUTH_UNIX
;
842 *authp
= rpc_autherr_badcred
;
847 svcauth_unix_release(struct svc_rqst
*rqstp
)
849 /* Verifier (such as it is) is already in place.
851 if (rqstp
->rq_client
)
852 auth_domain_put(rqstp
->rq_client
);
853 rqstp
->rq_client
= NULL
;
854 if (rqstp
->rq_cred
.cr_group_info
)
855 put_group_info(rqstp
->rq_cred
.cr_group_info
);
856 rqstp
->rq_cred
.cr_group_info
= NULL
;
862 struct auth_ops svcauth_unix
= {
864 .owner
= THIS_MODULE
,
865 .flavour
= RPC_AUTH_UNIX
,
866 .accept
= svcauth_unix_accept
,
867 .release
= svcauth_unix_release
,
868 .domain_release
= svcauth_unix_domain_release
,
869 .set_client
= svcauth_unix_set_client
,
872 static struct cache_detail ip_map_cache_template
= {
873 .owner
= THIS_MODULE
,
874 .hash_size
= IP_HASHMAX
,
875 .name
= "auth.unix.ip",
876 .cache_put
= ip_map_put
,
877 .cache_upcall
= ip_map_upcall
,
878 .cache_parse
= ip_map_parse
,
879 .cache_show
= ip_map_show
,
880 .match
= ip_map_match
,
883 .alloc
= ip_map_alloc
,
886 int ip_map_cache_create(struct net
*net
)
888 struct sunrpc_net
*sn
= net_generic(net
, sunrpc_net_id
);
889 struct cache_detail
*cd
;
892 cd
= cache_create_net(&ip_map_cache_template
, net
);
895 err
= cache_register_net(cd
, net
);
897 cache_destroy_net(cd
, net
);
900 sn
->ip_map_cache
= cd
;
904 void ip_map_cache_destroy(struct net
*net
)
906 struct sunrpc_net
*sn
= net_generic(net
, sunrpc_net_id
);
907 struct cache_detail
*cd
= sn
->ip_map_cache
;
909 sn
->ip_map_cache
= NULL
;
911 cache_unregister_net(cd
, net
);
912 cache_destroy_net(cd
, net
);