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-rw-r--r--include/linux/sunrpc/auth.h149
-rw-r--r--include/linux/sunrpc/auth_gss.h97
-rw-r--r--include/linux/sunrpc/cache.h312
-rw-r--r--include/linux/sunrpc/clnt.h153
-rw-r--r--include/linux/sunrpc/debug.h99
-rw-r--r--include/linux/sunrpc/gss_api.h122
-rw-r--r--include/linux/sunrpc/gss_asn1.h81
-rw-r--r--include/linux/sunrpc/gss_err.h177
-rw-r--r--include/linux/sunrpc/gss_krb5.h148
-rw-r--r--include/linux/sunrpc/gss_spkm3.h61
-rw-r--r--include/linux/sunrpc/msg_prot.h80
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h50
-rw-r--r--include/linux/sunrpc/sched.h273
-rw-r--r--include/linux/sunrpc/stats.h78
-rw-r--r--include/linux/sunrpc/svc.h306
-rw-r--r--include/linux/sunrpc/svcauth.h167
-rw-r--r--include/linux/sunrpc/svcauth_gss.h27
-rw-r--r--include/linux/sunrpc/svcsock.h65
-rw-r--r--include/linux/sunrpc/timer.h49
-rw-r--r--include/linux/sunrpc/types.h22
-rw-r--r--include/linux/sunrpc/xdr.h192
-rw-r--r--include/linux/sunrpc/xprt.h232
22 files changed, 2940 insertions, 0 deletions
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
new file mode 100644
index 00000000000..04ebc24db34
--- /dev/null
+++ b/include/linux/sunrpc/auth.h
@@ -0,0 +1,149 @@
+/*
+ * linux/include/linux/sunrpc/auth.h
+ *
+ * Declarations for the RPC client authentication machinery.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_AUTH_H
+#define _LINUX_SUNRPC_AUTH_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/msg_prot.h>
+#include <linux/sunrpc/xdr.h>
+
+#include <asm/atomic.h>
+
+/* size of the nodename buffer */
+#define UNX_MAXNODENAME 32
+
+/* Maximum size (in bytes) of an rpc credential or verifier */
+#define RPC_MAX_AUTH_SIZE (400)
+
+/* Work around the lack of a VFS credential */
+struct auth_cred {
+ uid_t uid;
+ gid_t gid;
+ struct group_info *group_info;
+};
+
+/*
+ * Client user credentials
+ */
+struct rpc_cred {
+ struct hlist_node cr_hash; /* hash chain */
+ struct rpc_credops * cr_ops;
+ unsigned long cr_expire; /* when to gc */
+ atomic_t cr_count; /* ref count */
+ unsigned short cr_flags; /* various flags */
+#ifdef RPC_DEBUG
+ unsigned long cr_magic; /* 0x0f4aa4f0 */
+#endif
+
+ uid_t cr_uid;
+
+ /* per-flavor data */
+};
+#define RPCAUTH_CRED_LOCKED 0x0001
+#define RPCAUTH_CRED_UPTODATE 0x0002
+
+#define RPCAUTH_CRED_MAGIC 0x0f4aa4f0
+
+/*
+ * Client authentication handle
+ */
+#define RPC_CREDCACHE_NR 8
+#define RPC_CREDCACHE_MASK (RPC_CREDCACHE_NR - 1)
+struct rpc_cred_cache {
+ struct hlist_head hashtable[RPC_CREDCACHE_NR];
+ unsigned long nextgc; /* next garbage collection */
+ unsigned long expire; /* cache expiry interval */
+};
+
+struct rpc_auth {
+ unsigned int au_cslack; /* call cred size estimate */
+ unsigned int au_rslack; /* reply verf size guess */
+ unsigned int au_flags; /* various flags */
+ struct rpc_authops * au_ops; /* operations */
+ rpc_authflavor_t au_flavor; /* pseudoflavor (note may
+ * differ from the flavor in
+ * au_ops->au_flavor in gss
+ * case) */
+ atomic_t au_count; /* Reference counter */
+
+ struct rpc_cred_cache * au_credcache;
+ /* per-flavor data */
+};
+#define RPC_AUTH_PROC_CREDS 0x0010 /* process creds (including
+ * uid/gid, fs[ug]id, gids)
+ */
+
+/*
+ * Client authentication ops
+ */
+struct rpc_authops {
+ struct module *owner;
+ rpc_authflavor_t au_flavor; /* flavor (RPC_AUTH_*) */
+#ifdef RPC_DEBUG
+ char * au_name;
+#endif
+ struct rpc_auth * (*create)(struct rpc_clnt *, rpc_authflavor_t);
+ void (*destroy)(struct rpc_auth *);
+
+ struct rpc_cred * (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
+ struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int);
+};
+
+struct rpc_credops {
+ const char * cr_name; /* Name of the auth flavour */
+ void (*crdestroy)(struct rpc_cred *);
+
+ int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
+ u32 * (*crmarshal)(struct rpc_task *, u32 *);
+ int (*crrefresh)(struct rpc_task *);
+ u32 * (*crvalidate)(struct rpc_task *, u32 *);
+ int (*crwrap_req)(struct rpc_task *, kxdrproc_t,
+ void *, u32 *, void *);
+ int (*crunwrap_resp)(struct rpc_task *, kxdrproc_t,
+ void *, u32 *, void *);
+};
+
+extern struct rpc_authops authunix_ops;
+extern struct rpc_authops authnull_ops;
+#ifdef CONFIG_SUNRPC_SECURE
+extern struct rpc_authops authdes_ops;
+#endif
+
+int rpcauth_register(struct rpc_authops *);
+int rpcauth_unregister(struct rpc_authops *);
+struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
+void rpcauth_destroy(struct rpc_auth *);
+struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
+struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
+struct rpc_cred * rpcauth_bindcred(struct rpc_task *);
+void rpcauth_holdcred(struct rpc_task *);
+void put_rpccred(struct rpc_cred *);
+void rpcauth_unbindcred(struct rpc_task *);
+u32 * rpcauth_marshcred(struct rpc_task *, u32 *);
+u32 * rpcauth_checkverf(struct rpc_task *, u32 *);
+int rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp, u32 *data, void *obj);
+int rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp, u32 *data, void *obj);
+int rpcauth_refreshcred(struct rpc_task *);
+void rpcauth_invalcred(struct rpc_task *);
+int rpcauth_uptodatecred(struct rpc_task *);
+int rpcauth_init_credcache(struct rpc_auth *, unsigned long);
+void rpcauth_free_credcache(struct rpc_auth *);
+
+static inline
+struct rpc_cred * get_rpccred(struct rpc_cred *cred)
+{
+ atomic_inc(&cred->cr_count);
+ return cred;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_AUTH_H */
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
new file mode 100644
index 00000000000..03084dc4bb6
--- /dev/null
+++ b/include/linux/sunrpc/auth_gss.h
@@ -0,0 +1,97 @@
+/*
+ * linux/include/linux/auth_gss.h
+ *
+ * Declarations for RPCSEC_GSS
+ *
+ * Dug Song <dugsong@monkey.org>
+ * Andy Adamson <andros@umich.edu>
+ * Bruce Fields <bfields@umich.edu>
+ * Copyright (c) 2000 The Regents of the University of Michigan
+ *
+ * $Id$
+ */
+
+#ifndef _LINUX_SUNRPC_AUTH_GSS_H
+#define _LINUX_SUNRPC_AUTH_GSS_H
+
+#ifdef __KERNEL__
+#include <linux/sunrpc/auth.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/gss_api.h>
+
+#define RPC_GSS_VERSION 1
+
+#define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */
+
+enum rpc_gss_proc {
+ RPC_GSS_PROC_DATA = 0,
+ RPC_GSS_PROC_INIT = 1,
+ RPC_GSS_PROC_CONTINUE_INIT = 2,
+ RPC_GSS_PROC_DESTROY = 3
+};
+
+enum rpc_gss_svc {
+ RPC_GSS_SVC_NONE = 1,
+ RPC_GSS_SVC_INTEGRITY = 2,
+ RPC_GSS_SVC_PRIVACY = 3
+};
+
+/* on-the-wire gss cred: */
+struct rpc_gss_wire_cred {
+ u32 gc_v; /* version */
+ u32 gc_proc; /* control procedure */
+ u32 gc_seq; /* sequence number */
+ u32 gc_svc; /* service */
+ struct xdr_netobj gc_ctx; /* context handle */
+};
+
+/* on-the-wire gss verifier: */
+struct rpc_gss_wire_verf {
+ u32 gv_flavor;
+ struct xdr_netobj gv_verf;
+};
+
+/* return from gss NULL PROC init sec context */
+struct rpc_gss_init_res {
+ struct xdr_netobj gr_ctx; /* context handle */
+ u32 gr_major; /* major status */
+ u32 gr_minor; /* minor status */
+ u32 gr_win; /* sequence window */
+ struct xdr_netobj gr_token; /* token */
+};
+
+/* The gss_cl_ctx struct holds all the information the rpcsec_gss client
+ * code needs to know about a single security context. In particular,
+ * gc_gss_ctx is the context handle that is used to do gss-api calls, while
+ * gc_wire_ctx is the context handle that is used to identify the context on
+ * the wire when communicating with a server. */
+
+struct gss_cl_ctx {
+ atomic_t count;
+ enum rpc_gss_proc gc_proc;
+ u32 gc_seq;
+ spinlock_t gc_seq_lock;
+ struct gss_ctx *gc_gss_ctx;
+ struct xdr_netobj gc_wire_ctx;
+ u32 gc_win;
+ unsigned long gc_expiry;
+};
+
+struct gss_upcall_msg;
+struct gss_cred {
+ struct rpc_cred gc_base;
+ enum rpc_gss_svc gc_service;
+ struct gss_cl_ctx *gc_ctx;
+ struct gss_upcall_msg *gc_upcall;
+};
+
+#define gc_uid gc_base.cr_uid
+#define gc_count gc_base.cr_count
+#define gc_flags gc_base.cr_flags
+#define gc_expire gc_base.cr_expire
+
+void print_hexl(u32 *p, u_int length, u_int offset);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_AUTH_GSS_H */
+
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
new file mode 100644
index 00000000000..6864063d1b9
--- /dev/null
+++ b/include/linux/sunrpc/cache.h
@@ -0,0 +1,312 @@
+/*
+ * include/linux/sunrpc/cache.h
+ *
+ * Generic code for various authentication-related caches
+ * used by sunrpc clients and servers.
+ *
+ * Copyright (C) 2002 Neil Brown <neilb@cse.unsw.edu.au>
+ *
+ * Released under terms in GPL version 2. See COPYING.
+ *
+ */
+
+#ifndef _LINUX_SUNRPC_CACHE_H_
+#define _LINUX_SUNRPC_CACHE_H_
+
+#include <linux/slab.h>
+#include <asm/atomic.h>
+#include <linux/proc_fs.h>
+
+/*
+ * Each cache requires:
+ * - A 'struct cache_detail' which contains information specific to the cache
+ * for common code to use.
+ * - An item structure that must contain a "struct cache_head"
+ * - A lookup function defined using DefineCacheLookup
+ * - A 'put' function that can release a cache item. It will only
+ * be called after cache_put has succeed, so there are guarantee
+ * to be no references.
+ * - A function to calculate a hash of an item's key.
+ *
+ * as well as assorted code fragments (e.g. compare keys) and numbers
+ * (e.g. hash size, goal_age, etc).
+ *
+ * Each cache must be registered so that it can be cleaned regularly.
+ * When the cache is unregistered, it is flushed completely.
+ *
+ * Entries have a ref count and a 'hashed' flag which counts the existance
+ * in the hash table.
+ * We only expire entries when refcount is zero.
+ * Existance in the cache is counted the refcount.
+ */
+
+/* Every cache item has a common header that is used
+ * for expiring and refreshing entries.
+ *
+ */
+struct cache_head {
+ struct cache_head * next;
+ time_t expiry_time; /* After time time, don't use the data */
+ time_t last_refresh; /* If CACHE_PENDING, this is when upcall
+ * was sent, else this is when update was received
+ */
+ atomic_t refcnt;
+ unsigned long flags;
+};
+#define CACHE_VALID 0 /* Entry contains valid data */
+#define CACHE_NEGATIVE 1 /* Negative entry - there is no match for the key */
+#define CACHE_PENDING 2 /* An upcall has been sent but no reply received yet*/
+
+#define CACHE_NEW_EXPIRY 120 /* keep new things pending confirmation for 120 seconds */
+
+struct cache_detail {
+ int hash_size;
+ struct cache_head ** hash_table;
+ rwlock_t hash_lock;
+
+ atomic_t inuse; /* active user-space update or lookup */
+
+ char *name;
+ void (*cache_put)(struct cache_head *,
+ struct cache_detail*);
+
+ void (*cache_request)(struct cache_detail *cd,
+ struct cache_head *h,
+ char **bpp, int *blen);
+ int (*cache_parse)(struct cache_detail *,
+ char *buf, int len);
+
+ int (*cache_show)(struct seq_file *m,
+ struct cache_detail *cd,
+ struct cache_head *h);
+
+ /* fields below this comment are for internal use
+ * and should not be touched by cache owners
+ */
+ time_t flush_time; /* flush all cache items with last_refresh
+ * earlier than this */
+ struct list_head others;
+ time_t nextcheck;
+ int entries;
+
+ /* fields for communication over channel */
+ struct list_head queue;
+ struct proc_dir_entry *proc_ent;
+ struct proc_dir_entry *flush_ent, *channel_ent, *content_ent;
+
+ atomic_t readers; /* how many time is /chennel open */
+ time_t last_close; /* if no readers, when did last close */
+ time_t last_warn; /* when we last warned about no readers */
+ void (*warn_no_listener)(struct cache_detail *cd);
+};
+
+
+/* this must be embedded in any request structure that
+ * identifies an object that will want a callback on
+ * a cache fill
+ */
+struct cache_req {
+ struct cache_deferred_req *(*defer)(struct cache_req *req);
+};
+/* this must be embedded in a deferred_request that is being
+ * delayed awaiting cache-fill
+ */
+struct cache_deferred_req {
+ struct list_head hash; /* on hash chain */
+ struct list_head recent; /* on fifo */
+ struct cache_head *item; /* cache item we wait on */
+ time_t recv_time;
+ void *owner; /* we might need to discard all defered requests
+ * owned by someone */
+ void (*revisit)(struct cache_deferred_req *req,
+ int too_many);
+};
+
+/*
+ * just like a template in C++, this macro does cache lookup
+ * for us.
+ * The function is passed some sort of HANDLE from which a cache_detail
+ * structure can be determined (via SETUP, DETAIL), a template
+ * cache entry (type RTN*), and a "set" flag. Using the HASHFN and the
+ * TEST, the function will try to find a matching cache entry in the cache.
+ * If "set" == 0 :
+ * If an entry is found, it is returned
+ * If no entry is found, a new non-VALID entry is created.
+ * If "set" == 1 and INPLACE == 0 :
+ * If no entry is found a new one is inserted with data from "template"
+ * If a non-CACHE_VALID entry is found, it is updated from template using UPDATE
+ * If a CACHE_VALID entry is found, a new entry is swapped in with data
+ * from "template"
+ * If set == 1, and INPLACE == 1 :
+ * As above, except that if a CACHE_VALID entry is found, we UPDATE in place
+ * instead of swapping in a new entry.
+ *
+ * If the passed handle has the CACHE_NEGATIVE flag set, then UPDATE is not
+ * run but insteead CACHE_NEGATIVE is set in any new item.
+
+ * In any case, the new entry is returned with a reference count.
+ *
+ *
+ * RTN is a struct type for a cache entry
+ * MEMBER is the member of the cache which is cache_head, which must be first
+ * FNAME is the name for the function
+ * ARGS are arguments to function and must contain RTN *item, int set. May
+ * also contain something to be usedby SETUP or DETAIL to find cache_detail.
+ * SETUP locates the cache detail and makes it available as...
+ * DETAIL identifies the cache detail, possibly set up by SETUP
+ * HASHFN returns a hash value of the cache entry "item"
+ * TEST tests if "tmp" matches "item"
+ * INIT copies key information from "item" to "new"
+ * UPDATE copies content information from "item" to "tmp"
+ * INPLACE is true if updates can happen inplace rather than allocating a new structure
+ *
+ * WARNING: any substantial changes to this must be reflected in
+ * net/sunrpc/svcauth.c(auth_domain_lookup)
+ * which is a similar routine that is open-coded.
+ */
+#define DefineCacheLookup(RTN,MEMBER,FNAME,ARGS,SETUP,DETAIL,HASHFN,TEST,INIT,UPDATE,INPLACE) \
+RTN *FNAME ARGS \
+{ \
+ RTN *tmp, *new=NULL; \
+ struct cache_head **hp, **head; \
+ SETUP; \
+ head = &(DETAIL)->hash_table[HASHFN]; \
+ retry: \
+ if (set||new) write_lock(&(DETAIL)->hash_lock); \
+ else read_lock(&(DETAIL)->hash_lock); \
+ for(hp=head; *hp != NULL; hp = &tmp->MEMBER.next) { \
+ tmp = container_of(*hp, RTN, MEMBER); \
+ if (TEST) { /* found a match */ \
+ \
+ if (set && !INPLACE && test_bit(CACHE_VALID, &tmp->MEMBER.flags) && !new) \
+ break; \
+ \
+ if (new) \
+ {INIT;} \
+ if (set) { \
+ if (!INPLACE && test_bit(CACHE_VALID, &tmp->MEMBER.flags))\
+ { /* need to swap in new */ \
+ RTN *t2; \
+ \
+ new->MEMBER.next = tmp->MEMBER.next; \
+ *hp = &new->MEMBER; \
+ tmp->MEMBER.next = NULL; \
+ t2 = tmp; tmp = new; new = t2; \
+ } \
+ if (test_bit(CACHE_NEGATIVE, &item->MEMBER.flags)) \
+ set_bit(CACHE_NEGATIVE, &tmp->MEMBER.flags); \
+ else { \
+ UPDATE; \
+ clear_bit(CACHE_NEGATIVE, &tmp->MEMBER.flags); \
+ } \
+ } \
+ cache_get(&tmp->MEMBER); \
+ if (set||new) write_unlock(&(DETAIL)->hash_lock); \
+ else read_unlock(&(DETAIL)->hash_lock); \
+ if (set) \
+ cache_fresh(DETAIL, &tmp->MEMBER, item->MEMBER.expiry_time); \
+ if (set && !INPLACE && new) cache_fresh(DETAIL, &new->MEMBER, 0); \
+ if (new) (DETAIL)->cache_put(&new->MEMBER, DETAIL); \
+ return tmp; \
+ } \
+ } \
+ /* Didn't find anything */ \
+ if (new) { \
+ INIT; \
+ new->MEMBER.next = *head; \
+ *head = &new->MEMBER; \
+ (DETAIL)->entries ++; \
+ cache_get(&new->MEMBER); \
+ if (set) { \
+ tmp = new; \
+ if (test_bit(CACHE_NEGATIVE, &item->MEMBER.flags)) \
+ set_bit(CACHE_NEGATIVE, &tmp->MEMBER.flags); \
+ else {UPDATE;} \
+ } \
+ } \
+ if (set||new) write_unlock(&(DETAIL)->hash_lock); \
+ else read_unlock(&(DETAIL)->hash_lock); \
+ if (new && set) \
+ cache_fresh(DETAIL, &new->MEMBER, item->MEMBER.expiry_time); \
+ if (new) \
+ return new; \
+ new = kmalloc(sizeof(*new), GFP_KERNEL); \
+ if (new) { \
+ cache_init(&new->MEMBER); \
+ goto retry; \
+ } \
+ return NULL; \
+}
+
+#define DefineSimpleCacheLookup(STRUCT,INPLACE) \
+ DefineCacheLookup(struct STRUCT, h, STRUCT##_lookup, (struct STRUCT *item, int set), /*no setup */, \
+ & STRUCT##_cache, STRUCT##_hash(item), STRUCT##_match(item, tmp),\
+ STRUCT##_init(new, item), STRUCT##_update(tmp, item),INPLACE)
+
+#define cache_for_each(pos, detail, index, member) \
+ for (({read_lock(&(detail)->hash_lock); index = (detail)->hash_size;}) ; \
+ ({if (index==0)read_unlock(&(detail)->hash_lock); index--;}); \
+ ) \
+ for (pos = container_of((detail)->hash_table[index], typeof(*pos), member); \
+ &pos->member; \
+ pos = container_of(pos->member.next, typeof(*pos), member))
+
+
+
+extern void cache_clean_deferred(void *owner);
+
+static inline struct cache_head *cache_get(struct cache_head *h)
+{
+ atomic_inc(&h->refcnt);
+ return h;
+}
+
+
+static inline int cache_put(struct cache_head *h, struct cache_detail *cd)
+{
+ if (atomic_read(&h->refcnt) <= 2 &&
+ h->expiry_time < cd->nextcheck)
+ cd->nextcheck = h->expiry_time;
+ return atomic_dec_and_test(&h->refcnt);
+}
+
+extern void cache_init(struct cache_head *h);
+extern void cache_fresh(struct cache_detail *detail,
+ struct cache_head *head, time_t expiry);
+extern int cache_check(struct cache_detail *detail,
+ struct cache_head *h, struct cache_req *rqstp);
+extern void cache_flush(void);
+extern void cache_purge(struct cache_detail *detail);
+#define NEVER (0x7FFFFFFF)
+extern void cache_register(struct cache_detail *cd);
+extern int cache_unregister(struct cache_detail *cd);
+
+extern void qword_add(char **bpp, int *lp, char *str);
+extern void qword_addhex(char **bpp, int *lp, char *buf, int blen);
+extern int qword_get(char **bpp, char *dest, int bufsize);
+
+static inline int get_int(char **bpp, int *anint)
+{
+ char buf[50];
+ char *ep;
+ int rv;
+ int len = qword_get(bpp, buf, 50);
+ if (len < 0) return -EINVAL;
+ if (len ==0) return -ENOENT;
+ rv = simple_strtol(buf, &ep, 0);
+ if (*ep) return -EINVAL;
+ *anint = rv;
+ return 0;
+}
+
+static inline time_t get_expiry(char **bpp)
+{
+ int rv;
+ if (get_int(bpp, &rv))
+ return 0;
+ if (rv < 0)
+ return 0;
+ return rv;
+}
+
+#endif /* _LINUX_SUNRPC_CACHE_H_ */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
new file mode 100644
index 00000000000..2709caf4d12
--- /dev/null
+++ b/include/linux/sunrpc/clnt.h
@@ -0,0 +1,153 @@
+/*
+ * linux/include/linux/sunrpc/clnt.h
+ *
+ * Declarations for the high-level RPC client interface
+ *
+ * Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_CLNT_H
+#define _LINUX_SUNRPC_CLNT_H
+
+#include <linux/sunrpc/msg_prot.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/xprt.h>
+#include <linux/sunrpc/auth.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/timer.h>
+#include <asm/signal.h>
+
+/*
+ * This defines an RPC port mapping
+ */
+struct rpc_portmap {
+ __u32 pm_prog;
+ __u32 pm_vers;
+ __u32 pm_prot;
+ __u16 pm_port;
+ unsigned char pm_binding : 1; /* doing a getport() */
+ struct rpc_wait_queue pm_bindwait; /* waiting on getport() */
+};
+
+struct rpc_inode;
+
+/*
+ * The high-level client handle
+ */
+struct rpc_clnt {
+ atomic_t cl_count; /* Number of clones */
+ atomic_t cl_users; /* number of references */
+ struct rpc_xprt * cl_xprt; /* transport */
+ struct rpc_procinfo * cl_procinfo; /* procedure info */
+ u32 cl_maxproc; /* max procedure number */
+
+ char * cl_server; /* server machine name */
+ char * cl_protname; /* protocol name */
+ struct rpc_auth * cl_auth; /* authenticator */
+ struct rpc_stat * cl_stats; /* statistics */
+
+ unsigned int cl_softrtry : 1,/* soft timeouts */
+ cl_intr : 1,/* interruptible */
+ cl_chatty : 1,/* be verbose */
+ cl_autobind : 1,/* use getport() */
+ cl_oneshot : 1,/* dispose after use */
+ cl_dead : 1;/* abandoned */
+
+ struct rpc_rtt * cl_rtt; /* RTO estimator data */
+ struct rpc_portmap * cl_pmap; /* port mapping */
+
+ int cl_nodelen; /* nodename length */
+ char cl_nodename[UNX_MAXNODENAME];
+ char cl_pathname[30];/* Path in rpc_pipe_fs */
+ struct dentry * cl_dentry; /* inode */
+ struct rpc_clnt * cl_parent; /* Points to parent of clones */
+ struct rpc_rtt cl_rtt_default;
+ struct rpc_portmap cl_pmap_default;
+ char cl_inline_name[32];
+};
+#define cl_timeout cl_xprt->timeout
+#define cl_prog cl_pmap->pm_prog
+#define cl_vers cl_pmap->pm_vers
+#define cl_port cl_pmap->pm_port
+#define cl_prot cl_pmap->pm_prot
+
+/*
+ * General RPC program info
+ */
+#define RPC_MAXVERSION 4
+struct rpc_program {
+ char * name; /* protocol name */
+ u32 number; /* program number */
+ unsigned int nrvers; /* number of versions */
+ struct rpc_version ** version; /* version array */
+ struct rpc_stat * stats; /* statistics */
+ char * pipe_dir_name; /* path to rpc_pipefs dir */
+};
+
+struct rpc_version {
+ u32 number; /* version number */
+ unsigned int nrprocs; /* number of procs */
+ struct rpc_procinfo * procs; /* procedure array */
+};
+
+/*
+ * Procedure information
+ */
+struct rpc_procinfo {
+ u32 p_proc; /* RPC procedure number */
+ kxdrproc_t p_encode; /* XDR encode function */
+ kxdrproc_t p_decode; /* XDR decode function */
+ unsigned int p_bufsiz; /* req. buffer size */
+ unsigned int p_count; /* call count */
+ unsigned int p_timer; /* Which RTT timer to use */
+};
+
+#define RPC_CONGESTED(clnt) (RPCXPRT_CONGESTED((clnt)->cl_xprt))
+#define RPC_PEERADDR(clnt) (&(clnt)->cl_xprt->addr)
+
+#ifdef __KERNEL__
+
+struct rpc_clnt *rpc_create_client(struct rpc_xprt *xprt, char *servname,
+ struct rpc_program *info,
+ u32 version, rpc_authflavor_t authflavor);
+struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
+int rpc_shutdown_client(struct rpc_clnt *);
+int rpc_destroy_client(struct rpc_clnt *);
+void rpc_release_client(struct rpc_clnt *);
+void rpc_getport(struct rpc_task *, struct rpc_clnt *);
+int rpc_register(u32, u32, int, unsigned short, int *);
+
+void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
+
+int rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
+ int flags, rpc_action callback, void *clntdata);
+int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg,
+ int flags);
+void rpc_restart_call(struct rpc_task *);
+void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset);
+void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset);
+void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
+size_t rpc_max_payload(struct rpc_clnt *);
+
+static __inline__
+int rpc_call(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
+{
+ struct rpc_message msg = {
+ .rpc_proc = &clnt->cl_procinfo[proc],
+ .rpc_argp = argp,
+ .rpc_resp = resp,
+ .rpc_cred = NULL
+ };
+ return rpc_call_sync(clnt, &msg, flags);
+}
+
+extern void rpciod_wake_up(void);
+
+/*
+ * Helper function for NFSroot support
+ */
+int rpc_getport_external(struct sockaddr_in *, __u32, __u32, int);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_CLNT_H */
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
new file mode 100644
index 00000000000..eadb31e3c19
--- /dev/null
+++ b/include/linux/sunrpc/debug.h
@@ -0,0 +1,99 @@
+/*
+ * linux/include/linux/sunrpc/debug.h
+ *
+ * Debugging support for sunrpc module
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_DEBUG_H_
+#define _LINUX_SUNRPC_DEBUG_H_
+
+#include <linux/config.h>
+
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+
+/*
+ * Enable RPC debugging/profiling.
+ */
+#ifdef CONFIG_SYSCTL
+#define RPC_DEBUG
+#endif
+/* #define RPC_PROFILE */
+
+/*
+ * RPC debug facilities
+ */
+#define RPCDBG_XPRT 0x0001
+#define RPCDBG_CALL 0x0002
+#define RPCDBG_DEBUG 0x0004
+#define RPCDBG_NFS 0x0008
+#define RPCDBG_AUTH 0x0010
+#define RPCDBG_PMAP 0x0020
+#define RPCDBG_SCHED 0x0040
+#define RPCDBG_SVCSOCK 0x0100
+#define RPCDBG_SVCDSP 0x0200
+#define RPCDBG_MISC 0x0400
+#define RPCDBG_CACHE 0x0800
+#define RPCDBG_ALL 0x7fff
+
+#ifdef __KERNEL__
+
+/*
+ * Debugging macros etc
+ */
+#ifdef RPC_DEBUG
+extern unsigned int rpc_debug;
+extern unsigned int nfs_debug;
+extern unsigned int nfsd_debug;
+extern unsigned int nlm_debug;
+#endif
+
+#define dprintk(args...) dfprintk(FACILITY, ## args)
+
+#undef ifdebug
+#ifdef RPC_DEBUG
+# define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
+# define dfprintk(fac, args...) do { ifdebug(fac) printk(args); } while(0)
+# define RPC_IFDEBUG(x) x
+#else
+# define ifdebug(fac) if (0)
+# define dfprintk(fac, args...) do ; while (0)
+# define RPC_IFDEBUG(x)
+#endif
+
+#ifdef RPC_PROFILE
+# define pprintk(args...) printk(## args)
+#else
+# define pprintk(args...) do ; while (0)
+#endif
+
+/*
+ * Sysctl interface for RPC debugging
+ */
+#ifdef RPC_DEBUG
+void rpc_register_sysctl(void);
+void rpc_unregister_sysctl(void);
+#endif
+
+#endif /* __KERNEL__ */
+
+/*
+ * Declarations for the sysctl debug interface, which allows to read or
+ * change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
+ * module currently registers its sysctl table dynamically, the sysctl path
+ * for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
+ */
+#define CTL_SUNRPC 7249 /* arbitrary and hopefully unused */
+
+enum {
+ CTL_RPCDEBUG = 1,
+ CTL_NFSDEBUG,
+ CTL_NFSDDEBUG,
+ CTL_NLMDEBUG,
+ CTL_SLOTTABLE_UDP,
+ CTL_SLOTTABLE_TCP,
+};
+
+#endif /* _LINUX_SUNRPC_DEBUG_H_ */
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
new file mode 100644
index 00000000000..689262f6305
--- /dev/null
+++ b/include/linux/sunrpc/gss_api.h
@@ -0,0 +1,122 @@
+/*
+ * linux/include/linux/gss_api.h
+ *
+ * Somewhat simplified version of the gss api.
+ *
+ * Dug Song <dugsong@monkey.org>
+ * Andy Adamson <andros@umich.edu>
+ * Bruce Fields <bfields@umich.edu>
+ * Copyright (c) 2000 The Regents of the University of Michigan
+ *
+ * $Id$
+ */
+
+#ifndef _LINUX_SUNRPC_GSS_API_H
+#define _LINUX_SUNRPC_GSS_API_H
+
+#ifdef __KERNEL__
+#include <linux/sunrpc/xdr.h>
+#include <linux/uio.h>
+
+/* The mechanism-independent gss-api context: */
+struct gss_ctx {
+ struct gss_api_mech *mech_type;
+ void *internal_ctx_id;
+};
+
+#define GSS_C_NO_BUFFER ((struct xdr_netobj) 0)
+#define GSS_C_NO_CONTEXT ((struct gss_ctx *) 0)
+#define GSS_C_NULL_OID ((struct xdr_netobj) 0)
+
+/*XXX arbitrary length - is this set somewhere? */
+#define GSS_OID_MAX_LEN 32
+
+/* gss-api prototypes; note that these are somewhat simplified versions of
+ * the prototypes specified in RFC 2744. */
+int gss_import_sec_context(
+ const void* input_token,
+ size_t bufsize,
+ struct gss_api_mech *mech,
+ struct gss_ctx **ctx_id);
+u32 gss_get_mic(
+ struct gss_ctx *ctx_id,
+ u32 qop,
+ struct xdr_buf *message,
+ struct xdr_netobj *mic_token);
+u32 gss_verify_mic(
+ struct gss_ctx *ctx_id,
+ struct xdr_buf *message,
+ struct xdr_netobj *mic_token,
+ u32 *qstate);
+u32 gss_delete_sec_context(
+ struct gss_ctx **ctx_id);
+
+u32 gss_pseudoflavor_to_service(struct gss_api_mech *, u32 pseudoflavor);
+char *gss_service_to_auth_domain_name(struct gss_api_mech *, u32 service);
+
+struct pf_desc {
+ u32 pseudoflavor;
+ u32 qop;
+ u32 service;
+ char *name;
+ char *auth_domain_name;
+};
+
+/* Different mechanisms (e.g., krb5 or spkm3) may implement gss-api, and
+ * mechanisms may be dynamically registered or unregistered by modules. */
+
+/* Each mechanism is described by the following struct: */
+struct gss_api_mech {
+ struct list_head gm_list;
+ struct module *gm_owner;
+ struct xdr_netobj gm_oid;
+ char *gm_name;
+ struct gss_api_ops *gm_ops;
+ /* pseudoflavors supported by this mechanism: */
+ int gm_pf_num;
+ struct pf_desc * gm_pfs;
+};
+
+/* and must provide the following operations: */
+struct gss_api_ops {
+ int (*gss_import_sec_context)(
+ const void *input_token,
+ size_t bufsize,
+ struct gss_ctx *ctx_id);
+ u32 (*gss_get_mic)(
+ struct gss_ctx *ctx_id,
+ u32 qop,
+ struct xdr_buf *message,
+ struct xdr_netobj *mic_token);
+ u32 (*gss_verify_mic)(
+ struct gss_ctx *ctx_id,
+ struct xdr_buf *message,
+ struct xdr_netobj *mic_token,
+ u32 *qstate);
+ void (*gss_delete_sec_context)(
+ void *internal_ctx_id);
+};
+
+int gss_mech_register(struct gss_api_mech *);
+void gss_mech_unregister(struct gss_api_mech *);
+
+/* returns a mechanism descriptor given an OID, and increments the mechanism's
+ * reference count. */
+struct gss_api_mech * gss_mech_get_by_OID(struct xdr_netobj *);
+
+/* Returns a reference to a mechanism, given a name like "krb5" etc. */
+struct gss_api_mech *gss_mech_get_by_name(const char *);
+
+/* Similar, but get by pseudoflavor. */
+struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32);
+
+/* Just increments the mechanism's reference count and returns its input: */
+struct gss_api_mech * gss_mech_get(struct gss_api_mech *);
+
+/* For every succesful gss_mech_get or gss_mech_get_by_* call there must be a
+ * corresponding call to gss_mech_put. */
+void gss_mech_put(struct gss_api_mech *);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_GSS_API_H */
+
diff --git a/include/linux/sunrpc/gss_asn1.h b/include/linux/sunrpc/gss_asn1.h
new file mode 100644
index 00000000000..3ccecd0ad22
--- /dev/null
+++ b/include/linux/sunrpc/gss_asn1.h
@@ -0,0 +1,81 @@
+/*
+ * linux/include/linux/sunrpc/gss_asn1.h
+ *
+ * minimal asn1 for generic encoding/decoding of gss tokens
+ *
+ * Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
+ * lib/gssapi/krb5/gssapiP_krb5.h, and others
+ *
+ * Copyright (c) 2000 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Andy Adamson <andros@umich.edu>
+ */
+
+/*
+ * Copyright 1995 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ * require a specific license from the United States Government.
+ * It is the responsibility of any person or organization contemplating
+ * export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission. Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ *
+ */
+
+
+#include <linux/sunrpc/gss_api.h>
+
+#define SIZEOF_INT 4
+
+/* from gssapi_err_generic.h */
+#define G_BAD_SERVICE_NAME (-2045022976L)
+#define G_BAD_STRING_UID (-2045022975L)
+#define G_NOUSER (-2045022974L)
+#define G_VALIDATE_FAILED (-2045022973L)
+#define G_BUFFER_ALLOC (-2045022972L)
+#define G_BAD_MSG_CTX (-2045022971L)
+#define G_WRONG_SIZE (-2045022970L)
+#define G_BAD_USAGE (-2045022969L)
+#define G_UNKNOWN_QOP (-2045022968L)
+#define G_NO_HOSTNAME (-2045022967L)
+#define G_BAD_HOSTNAME (-2045022966L)
+#define G_WRONG_MECH (-2045022965L)
+#define G_BAD_TOK_HEADER (-2045022964L)
+#define G_BAD_DIRECTION (-2045022963L)
+#define G_TOK_TRUNC (-2045022962L)
+#define G_REFLECT (-2045022961L)
+#define G_WRONG_TOKID (-2045022960L)
+
+#define g_OID_equal(o1,o2) \
+ (((o1)->len == (o2)->len) && \
+ (memcmp((o1)->data,(o2)->data,(int) (o1)->len) == 0))
+
+u32 g_verify_token_header(
+ struct xdr_netobj *mech,
+ int *body_size,
+ unsigned char **buf_in,
+ int toksize);
+
+int g_token_size(
+ struct xdr_netobj *mech,
+ unsigned int body_size);
+
+void g_make_token_header(
+ struct xdr_netobj *mech,
+ int body_size,
+ unsigned char **buf);
diff --git a/include/linux/sunrpc/gss_err.h b/include/linux/sunrpc/gss_err.h
new file mode 100644
index 00000000000..92608a2e574
--- /dev/null
+++ b/include/linux/sunrpc/gss_err.h
@@ -0,0 +1,177 @@
+/*
+ * linux/include/sunrpc/gss_err.h
+ *
+ * Adapted from MIT Kerberos 5-1.2.1 include/gssapi/gssapi.h
+ *
+ * Copyright (c) 2002 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Andy Adamson <andros@umich.edu>
+ */
+
+/*
+ * Copyright 1993 by OpenVision Technologies, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appears in all copies and
+ * that both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of OpenVision not be used
+ * in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. OpenVision makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LINUX_SUNRPC_GSS_ERR_H
+#define _LINUX_SUNRPC_GSS_ERR_H
+
+#ifdef __KERNEL__
+
+typedef unsigned int OM_uint32;
+
+/*
+ * Flag bits for context-level services.
+ */
+#define GSS_C_DELEG_FLAG 1
+#define GSS_C_MUTUAL_FLAG 2
+#define GSS_C_REPLAY_FLAG 4
+#define GSS_C_SEQUENCE_FLAG 8
+#define GSS_C_CONF_FLAG 16
+#define GSS_C_INTEG_FLAG 32
+#define GSS_C_ANON_FLAG 64
+#define GSS_C_PROT_READY_FLAG 128
+#define GSS_C_TRANS_FLAG 256
+
+/*
+ * Credential usage options
+ */
+#define GSS_C_BOTH 0
+#define GSS_C_INITIATE 1
+#define GSS_C_ACCEPT 2
+
+/*
+ * Status code types for gss_display_status
+ */
+#define GSS_C_GSS_CODE 1
+#define GSS_C_MECH_CODE 2
+
+
+/*
+ * Define the default Quality of Protection for per-message services. Note
+ * that an implementation that offers multiple levels of QOP may either reserve
+ * a value (for example zero, as assumed here) to mean "default protection", or
+ * alternatively may simply equate GSS_C_QOP_DEFAULT to a specific explicit
+ * QOP value. However a value of 0 should always be interpreted by a GSSAPI
+ * implementation as a request for the default protection level.
+ */
+#define GSS_C_QOP_DEFAULT 0
+
+/*
+ * Expiration time of 2^32-1 seconds means infinite lifetime for a
+ * credential or security context
+ */
+#define GSS_C_INDEFINITE ((OM_uint32) 0xfffffffful)
+
+
+/* Major status codes */
+
+#define GSS_S_COMPLETE 0
+
+/*
+ * Some "helper" definitions to make the status code macros obvious.
+ */
+#define GSS_C_CALLING_ERROR_OFFSET 24
+#define GSS_C_ROUTINE_ERROR_OFFSET 16
+#define GSS_C_SUPPLEMENTARY_OFFSET 0
+#define GSS_C_CALLING_ERROR_MASK ((OM_uint32) 0377ul)
+#define GSS_C_ROUTINE_ERROR_MASK ((OM_uint32) 0377ul)
+#define GSS_C_SUPPLEMENTARY_MASK ((OM_uint32) 0177777ul)
+
+/*
+ * The macros that test status codes for error conditions. Note that the
+ * GSS_ERROR() macro has changed slightly from the V1 GSSAPI so that it now
+ * evaluates its argument only once.
+ */
+#define GSS_CALLING_ERROR(x) \
+ ((x) & (GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET))
+#define GSS_ROUTINE_ERROR(x) \
+ ((x) & (GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET))
+#define GSS_SUPPLEMENTARY_INFO(x) \
+ ((x) & (GSS_C_SUPPLEMENTARY_MASK << GSS_C_SUPPLEMENTARY_OFFSET))
+#define GSS_ERROR(x) \
+ ((x) & ((GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET) | \
+ (GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET)))
+
+/*
+ * Now the actual status code definitions
+ */
+
+/*
+ * Calling errors:
+ */
+#define GSS_S_CALL_INACCESSIBLE_READ \
+ (((OM_uint32) 1ul) << GSS_C_CALLING_ERROR_OFFSET)
+#define GSS_S_CALL_INACCESSIBLE_WRITE \
+ (((OM_uint32) 2ul) << GSS_C_CALLING_ERROR_OFFSET)
+#define GSS_S_CALL_BAD_STRUCTURE \
+ (((OM_uint32) 3ul) << GSS_C_CALLING_ERROR_OFFSET)
+
+/*
+ * Routine errors:
+ */
+#define GSS_S_BAD_MECH (((OM_uint32) 1ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_NAME (((OM_uint32) 2ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_NAMETYPE (((OM_uint32) 3ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_BINDINGS (((OM_uint32) 4ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_STATUS (((OM_uint32) 5ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_SIG (((OM_uint32) 6ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_NO_CRED (((OM_uint32) 7ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_NO_CONTEXT (((OM_uint32) 8ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_DEFECTIVE_TOKEN (((OM_uint32) 9ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_DEFECTIVE_CREDENTIAL \
+ (((OM_uint32) 10ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_CREDENTIALS_EXPIRED \
+ (((OM_uint32) 11ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_CONTEXT_EXPIRED \
+ (((OM_uint32) 12ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_FAILURE (((OM_uint32) 13ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_BAD_QOP (((OM_uint32) 14ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_UNAUTHORIZED (((OM_uint32) 15ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_UNAVAILABLE (((OM_uint32) 16ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_DUPLICATE_ELEMENT \
+ (((OM_uint32) 17ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+#define GSS_S_NAME_NOT_MN \
+ (((OM_uint32) 18ul) << GSS_C_ROUTINE_ERROR_OFFSET)
+
+/*
+ * Supplementary info bits:
+ */
+#define GSS_S_CONTINUE_NEEDED (1 << (GSS_C_SUPPLEMENTARY_OFFSET + 0))
+#define GSS_S_DUPLICATE_TOKEN (1 << (GSS_C_SUPPLEMENTARY_OFFSET + 1))
+#define GSS_S_OLD_TOKEN (1 << (GSS_C_SUPPLEMENTARY_OFFSET + 2))
+#define GSS_S_UNSEQ_TOKEN (1 << (GSS_C_SUPPLEMENTARY_OFFSET + 3))
+#define GSS_S_GAP_TOKEN (1 << (GSS_C_SUPPLEMENTARY_OFFSET + 4))
+
+/* XXXX these are not part of the GSSAPI C bindings! (but should be) */
+
+#define GSS_CALLING_ERROR_FIELD(x) \
+ (((x) >> GSS_C_CALLING_ERROR_OFFSET) & GSS_C_CALLING_ERROR_MASK)
+#define GSS_ROUTINE_ERROR_FIELD(x) \
+ (((x) >> GSS_C_ROUTINE_ERROR_OFFSET) & GSS_C_ROUTINE_ERROR_MASK)
+#define GSS_SUPPLEMENTARY_INFO_FIELD(x) \
+ (((x) >> GSS_C_SUPPLEMENTARY_OFFSET) & GSS_C_SUPPLEMENTARY_MASK)
+
+/* XXXX This is a necessary evil until the spec is fixed */
+#define GSS_S_CRED_UNAVAIL GSS_S_FAILURE
+
+#endif /* __KERNEL__ */
+#endif /* __LINUX_SUNRPC_GSS_ERR_H */
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
new file mode 100644
index 00000000000..ffe31d2eb9e
--- /dev/null
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -0,0 +1,148 @@
+/*
+ * linux/include/linux/sunrpc/gss_krb5_types.h
+ *
+ * Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
+ * lib/gssapi/krb5/gssapiP_krb5.h, and others
+ *
+ * Copyright (c) 2000 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Andy Adamson <andros@umich.edu>
+ * Bruce Fields <bfields@umich.edu>
+ */
+
+/*
+ * Copyright 1995 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ * require a specific license from the United States Government.
+ * It is the responsibility of any person or organization contemplating
+ * export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission. Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ *
+ */
+
+#include <linux/sunrpc/auth_gss.h>
+#include <linux/sunrpc/gss_err.h>
+#include <linux/sunrpc/gss_asn1.h>
+
+struct krb5_ctx {
+ int initiate; /* 1 = initiating, 0 = accepting */
+ int seed_init;
+ unsigned char seed[16];
+ int signalg;
+ int sealalg;
+ struct crypto_tfm *enc;
+ struct crypto_tfm *seq;
+ s32 endtime;
+ u32 seq_send;
+ struct xdr_netobj mech_used;
+};
+
+#define KG_TOK_MIC_MSG 0x0101
+#define KG_TOK_WRAP_MSG 0x0201
+
+enum sgn_alg {
+ SGN_ALG_DES_MAC_MD5 = 0x0000,
+ SGN_ALG_MD2_5 = 0x0001,
+ SGN_ALG_DES_MAC = 0x0002,
+ SGN_ALG_3 = 0x0003, /* not published */
+ SGN_ALG_HMAC_MD5 = 0x0011, /* microsoft w2k; no support */
+ SGN_ALG_HMAC_SHA1_DES3_KD = 0x0004
+};
+enum seal_alg {
+ SEAL_ALG_NONE = 0xffff,
+ SEAL_ALG_DES = 0x0000,
+ SEAL_ALG_1 = 0x0001, /* not published */
+ SEAL_ALG_MICROSOFT_RC4 = 0x0010,/* microsoft w2k; no support */
+ SEAL_ALG_DES3KD = 0x0002
+};
+
+#define KRB5_CKSUM_LENGTH 8
+
+#define CKSUMTYPE_CRC32 0x0001
+#define CKSUMTYPE_RSA_MD4 0x0002
+#define CKSUMTYPE_RSA_MD4_DES 0x0003
+#define CKSUMTYPE_DESCBC 0x0004
+#define CKSUMTYPE_RSA_MD5 0x0007
+#define CKSUMTYPE_RSA_MD5_DES 0x0008
+#define CKSUMTYPE_NIST_SHA 0x0009
+#define CKSUMTYPE_HMAC_SHA1_DES3 0x000c
+
+/* from gssapi_err_krb5.h */
+#define KG_CCACHE_NOMATCH (39756032L)
+#define KG_KEYTAB_NOMATCH (39756033L)
+#define KG_TGT_MISSING (39756034L)
+#define KG_NO_SUBKEY (39756035L)
+#define KG_CONTEXT_ESTABLISHED (39756036L)
+#define KG_BAD_SIGN_TYPE (39756037L)
+#define KG_BAD_LENGTH (39756038L)
+#define KG_CTX_INCOMPLETE (39756039L)
+#define KG_CONTEXT (39756040L)
+#define KG_CRED (39756041L)
+#define KG_ENC_DESC (39756042L)
+#define KG_BAD_SEQ (39756043L)
+#define KG_EMPTY_CCACHE (39756044L)
+#define KG_NO_CTYPES (39756045L)
+
+/* per Kerberos v5 protocol spec crypto types from the wire.
+ * these get mapped to linux kernel crypto routines.
+ */
+#define ENCTYPE_NULL 0x0000
+#define ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */
+#define ENCTYPE_DES_CBC_MD4 0x0002 /* DES cbc mode with RSA-MD4 */
+#define ENCTYPE_DES_CBC_MD5 0x0003 /* DES cbc mode with RSA-MD5 */
+#define ENCTYPE_DES_CBC_RAW 0x0004 /* DES cbc mode raw */
+/* XXX deprecated? */
+#define ENCTYPE_DES3_CBC_SHA 0x0005 /* DES-3 cbc mode with NIST-SHA */
+#define ENCTYPE_DES3_CBC_RAW 0x0006 /* DES-3 cbc mode raw */
+#define ENCTYPE_DES_HMAC_SHA1 0x0008
+#define ENCTYPE_DES3_CBC_SHA1 0x0010
+#define ENCTYPE_UNKNOWN 0x01ff
+
+s32
+make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
+ struct xdr_netobj *cksum);
+
+u32
+krb5_make_token(struct krb5_ctx *context_handle, int qop_req,
+ struct xdr_buf *input_message_buffer,
+ struct xdr_netobj *output_message_buffer, int toktype);
+
+u32
+krb5_read_token(struct krb5_ctx *context_handle,
+ struct xdr_netobj *input_token_buffer,
+ struct xdr_buf *message_buffer,
+ int *qop_state, int toktype);
+
+u32
+krb5_encrypt(struct crypto_tfm * key,
+ void *iv, void *in, void *out, int length);
+
+u32
+krb5_decrypt(struct crypto_tfm * key,
+ void *iv, void *in, void *out, int length);
+
+s32
+krb5_make_seq_num(struct crypto_tfm * key,
+ int direction,
+ s32 seqnum, unsigned char *cksum, unsigned char *buf);
+
+s32
+krb5_get_seq_num(struct crypto_tfm * key,
+ unsigned char *cksum,
+ unsigned char *buf, int *direction, s32 * seqnum);
diff --git a/include/linux/sunrpc/gss_spkm3.h b/include/linux/sunrpc/gss_spkm3.h
new file mode 100644
index 00000000000..b5c9968c3c1
--- /dev/null
+++ b/include/linux/sunrpc/gss_spkm3.h
@@ -0,0 +1,61 @@
+/*
+ * linux/include/linux/sunrpc/gss_spkm3.h
+ *
+ * Copyright (c) 2000 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Andy Adamson <andros@umich.edu>
+ */
+
+#include <linux/sunrpc/auth_gss.h>
+#include <linux/sunrpc/gss_err.h>
+#include <linux/sunrpc/gss_asn1.h>
+
+struct spkm3_ctx {
+ struct xdr_netobj ctx_id; /* per message context id */
+ int qop; /* negotiated qop */
+ struct xdr_netobj mech_used;
+ unsigned int ret_flags ;
+ unsigned int req_flags ;
+ struct xdr_netobj share_key;
+ int conf_alg;
+ struct crypto_tfm* derived_conf_key;
+ int intg_alg;
+ struct crypto_tfm* derived_integ_key;
+ int keyestb_alg; /* alg used to get share_key */
+ int owf_alg; /* one way function */
+};
+
+/* from openssl/objects.h */
+/* XXX need SEAL_ALG_NONE */
+#define NID_md5 4
+#define NID_dhKeyAgreement 28
+#define NID_des_cbc 31
+#define NID_sha1 64
+#define NID_cast5_cbc 108
+
+/* SPKM InnerContext Token types */
+
+#define SPKM_ERROR_TOK 3
+#define SPKM_MIC_TOK 4
+#define SPKM_WRAP_TOK 5
+#define SPKM_DEL_TOK 6
+
+u32 spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
+
+u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int *qop_state, int toktype);
+
+#define CKSUMTYPE_RSA_MD5 0x0007
+
+s32 make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
+ struct xdr_netobj *cksum);
+void asn1_bitstring_len(struct xdr_netobj *in, int *enclen, int *zerobits);
+int decode_asn1_bitstring(struct xdr_netobj *out, char *in, int enclen,
+ int explen);
+void spkm3_mic_header(unsigned char **hdrbuf, unsigned int *hdrlen,
+ unsigned char *ctxhdr, int elen, int zbit);
+void spkm3_make_mic_token(unsigned char **tokp, int toklen,
+ struct xdr_netobj *mic_hdr,
+ struct xdr_netobj *md5cksum, int md5elen, int md5zbit);
+u32 spkm3_verify_mic_token(unsigned char **tokp, int *mic_hdrlen,
+ unsigned char **cksum);
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
new file mode 100644
index 00000000000..15f11533238
--- /dev/null
+++ b/include/linux/sunrpc/msg_prot.h
@@ -0,0 +1,80 @@
+/*
+ * linux/include/net/sunrpc/msg_prot.h
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_MSGPROT_H_
+#define _LINUX_SUNRPC_MSGPROT_H_
+
+#ifdef __KERNEL__ /* user programs should get these from the rpc header files */
+
+#define RPC_VERSION 2
+
+/* spec defines authentication flavor as an unsigned 32 bit integer */
+typedef u32 rpc_authflavor_t;
+
+enum rpc_auth_flavors {
+ RPC_AUTH_NULL = 0,
+ RPC_AUTH_UNIX = 1,
+ RPC_AUTH_SHORT = 2,
+ RPC_AUTH_DES = 3,
+ RPC_AUTH_KRB = 4,
+ RPC_AUTH_GSS = 6,
+ RPC_AUTH_MAXFLAVOR = 8,
+ /* pseudoflavors: */
+ RPC_AUTH_GSS_KRB5 = 390003,
+ RPC_AUTH_GSS_KRB5I = 390004,
+ RPC_AUTH_GSS_KRB5P = 390005,
+ RPC_AUTH_GSS_LKEY = 390006,
+ RPC_AUTH_GSS_LKEYI = 390007,
+ RPC_AUTH_GSS_LKEYP = 390008,
+ RPC_AUTH_GSS_SPKM = 390009,
+ RPC_AUTH_GSS_SPKMI = 390010,
+ RPC_AUTH_GSS_SPKMP = 390011,
+};
+
+enum rpc_msg_type {
+ RPC_CALL = 0,
+ RPC_REPLY = 1
+};
+
+enum rpc_reply_stat {
+ RPC_MSG_ACCEPTED = 0,
+ RPC_MSG_DENIED = 1
+};
+
+enum rpc_accept_stat {
+ RPC_SUCCESS = 0,
+ RPC_PROG_UNAVAIL = 1,
+ RPC_PROG_MISMATCH = 2,
+ RPC_PROC_UNAVAIL = 3,
+ RPC_GARBAGE_ARGS = 4,
+ RPC_SYSTEM_ERR = 5
+};
+
+enum rpc_reject_stat {
+ RPC_MISMATCH = 0,
+ RPC_AUTH_ERROR = 1
+};
+
+enum rpc_auth_stat {
+ RPC_AUTH_OK = 0,
+ RPC_AUTH_BADCRED = 1,
+ RPC_AUTH_REJECTEDCRED = 2,
+ RPC_AUTH_BADVERF = 3,
+ RPC_AUTH_REJECTEDVERF = 4,
+ RPC_AUTH_TOOWEAK = 5,
+ /* RPCSEC_GSS errors */
+ RPCSEC_GSS_CREDPROBLEM = 13,
+ RPCSEC_GSS_CTXPROBLEM = 14
+};
+
+#define RPC_PMAP_PROGRAM 100000
+#define RPC_PMAP_VERSION 2
+#define RPC_PMAP_PORT 111
+
+#define RPC_MAXNETNAMELEN 256
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
new file mode 100644
index 00000000000..63929349571
--- /dev/null
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -0,0 +1,50 @@
+#ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
+#define _LINUX_SUNRPC_RPC_PIPE_FS_H
+
+#ifdef __KERNEL__
+
+struct rpc_pipe_msg {
+ struct list_head list;
+ void *data;
+ size_t len;
+ size_t copied;
+ int errno;
+};
+
+struct rpc_pipe_ops {
+ ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
+ ssize_t (*downcall)(struct file *, const char __user *, size_t);
+ void (*release_pipe)(struct inode *);
+ void (*destroy_msg)(struct rpc_pipe_msg *);
+};
+
+struct rpc_inode {
+ struct inode vfs_inode;
+ void *private;
+ struct list_head pipe;
+ struct list_head in_upcall;
+ int pipelen;
+ int nreaders;
+ int nwriters;
+ wait_queue_head_t waitq;
+#define RPC_PIPE_WAIT_FOR_OPEN 1
+ int flags;
+ struct rpc_pipe_ops *ops;
+ struct work_struct queue_timeout;
+};
+
+static inline struct rpc_inode *
+RPC_I(struct inode *inode)
+{
+ return container_of(inode, struct rpc_inode, vfs_inode);
+}
+
+extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
+
+extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
+extern int rpc_rmdir(char *);
+extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags);
+extern int rpc_unlink(char *);
+
+#endif
+#endif
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
new file mode 100644
index 00000000000..99d17ed7ceb
--- /dev/null
+++ b/include/linux/sunrpc/sched.h
@@ -0,0 +1,273 @@
+/*
+ * linux/include/linux/sunrpc/sched.h
+ *
+ * Scheduling primitives for kernel Sun RPC.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_SCHED_H_
+#define _LINUX_SUNRPC_SCHED_H_
+
+#include <linux/timer.h>
+#include <linux/sunrpc/types.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+#include <linux/sunrpc/xdr.h>
+
+/*
+ * This is the actual RPC procedure call info.
+ */
+struct rpc_procinfo;
+struct rpc_message {
+ struct rpc_procinfo * rpc_proc; /* Procedure information */
+ void * rpc_argp; /* Arguments */
+ void * rpc_resp; /* Result */
+ struct rpc_cred * rpc_cred; /* Credentials */
+};
+
+struct rpc_wait_queue;
+struct rpc_wait {
+ struct list_head list; /* wait queue links */
+ struct list_head links; /* Links to related tasks */
+ wait_queue_head_t waitq; /* sync: sleep on this q */
+ struct rpc_wait_queue * rpc_waitq; /* RPC wait queue we're on */
+};
+
+/*
+ * This is the RPC task struct
+ */
+struct rpc_task {
+#ifdef RPC_DEBUG
+ unsigned long tk_magic; /* 0xf00baa */
+#endif
+ struct list_head tk_task; /* global list of tasks */
+ struct rpc_clnt * tk_client; /* RPC client */
+ struct rpc_rqst * tk_rqstp; /* RPC request */
+ int tk_status; /* result of last operation */
+
+ /*
+ * RPC call state
+ */
+ struct rpc_message tk_msg; /* RPC call info */
+ __u32 * tk_buffer; /* XDR buffer */
+ size_t tk_bufsize;
+ __u8 tk_garb_retry;
+ __u8 tk_cred_retry;
+
+ unsigned long tk_cookie; /* Cookie for batching tasks */
+
+ /*
+ * timeout_fn to be executed by timer bottom half
+ * callback to be executed after waking up
+ * action next procedure for async tasks
+ * exit exit async task and report to caller
+ */
+ void (*tk_timeout_fn)(struct rpc_task *);
+ void (*tk_callback)(struct rpc_task *);
+ void (*tk_action)(struct rpc_task *);
+ void (*tk_exit)(struct rpc_task *);
+ void (*tk_release)(struct rpc_task *);
+ void * tk_calldata;
+
+ /*
+ * tk_timer is used for async processing by the RPC scheduling
+ * primitives. You should not access this directly unless
+ * you have a pathological interest in kernel oopses.
+ */
+ struct timer_list tk_timer; /* kernel timer */
+ unsigned long tk_timeout; /* timeout for rpc_sleep() */
+ unsigned short tk_flags; /* misc flags */
+ unsigned char tk_active : 1;/* Task has been activated */
+ unsigned char tk_priority : 2;/* Task priority */
+ unsigned long tk_runstate; /* Task run status */
+ struct workqueue_struct *tk_workqueue; /* Normally rpciod, but could
+ * be any workqueue
+ */
+ union {
+ struct work_struct tk_work; /* Async task work queue */
+ struct rpc_wait tk_wait; /* RPC wait */
+ } u;
+#ifdef RPC_DEBUG
+ unsigned short tk_pid; /* debugging aid */
+#endif
+};
+#define tk_auth tk_client->cl_auth
+#define tk_xprt tk_client->cl_xprt
+
+/* support walking a list of tasks on a wait queue */
+#define task_for_each(task, pos, head) \
+ list_for_each(pos, head) \
+ if ((task=list_entry(pos, struct rpc_task, u.tk_wait.list)),1)
+
+#define task_for_first(task, head) \
+ if (!list_empty(head) && \
+ ((task=list_entry((head)->next, struct rpc_task, u.tk_wait.list)),1))
+
+/* .. and walking list of all tasks */
+#define alltask_for_each(task, pos, head) \
+ list_for_each(pos, head) \
+ if ((task=list_entry(pos, struct rpc_task, tk_task)),1)
+
+typedef void (*rpc_action)(struct rpc_task *);
+
+/*
+ * RPC task flags
+ */
+#define RPC_TASK_ASYNC 0x0001 /* is an async task */
+#define RPC_TASK_SWAPPER 0x0002 /* is swapping in/out */
+#define RPC_TASK_CHILD 0x0008 /* is child of other task */
+#define RPC_CALL_MAJORSEEN 0x0020 /* major timeout seen */
+#define RPC_TASK_ROOTCREDS 0x0040 /* force root creds */
+#define RPC_TASK_DYNAMIC 0x0080 /* task was kmalloc'ed */
+#define RPC_TASK_KILLED 0x0100 /* task was killed */
+#define RPC_TASK_SOFT 0x0200 /* Use soft timeouts */
+#define RPC_TASK_NOINTR 0x0400 /* uninterruptible task */
+
+#define RPC_IS_ASYNC(t) ((t)->tk_flags & RPC_TASK_ASYNC)
+#define RPC_IS_CHILD(t) ((t)->tk_flags & RPC_TASK_CHILD)
+#define RPC_IS_SWAPPER(t) ((t)->tk_flags & RPC_TASK_SWAPPER)
+#define RPC_DO_ROOTOVERRIDE(t) ((t)->tk_flags & RPC_TASK_ROOTCREDS)
+#define RPC_ASSASSINATED(t) ((t)->tk_flags & RPC_TASK_KILLED)
+#define RPC_IS_ACTIVATED(t) ((t)->tk_active)
+#define RPC_DO_CALLBACK(t) ((t)->tk_callback != NULL)
+#define RPC_IS_SOFT(t) ((t)->tk_flags & RPC_TASK_SOFT)
+#define RPC_TASK_UNINTERRUPTIBLE(t) ((t)->tk_flags & RPC_TASK_NOINTR)
+
+#define RPC_TASK_RUNNING 0
+#define RPC_TASK_QUEUED 1
+#define RPC_TASK_WAKEUP 2
+#define RPC_TASK_HAS_TIMER 3
+
+#define RPC_IS_RUNNING(t) (test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
+#define rpc_set_running(t) (set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
+#define rpc_test_and_set_running(t) \
+ (test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
+#define rpc_clear_running(t) \
+ do { \
+ smp_mb__before_clear_bit(); \
+ clear_bit(RPC_TASK_RUNNING, &(t)->tk_runstate); \
+ smp_mb__after_clear_bit(); \
+ } while (0)
+
+#define RPC_IS_QUEUED(t) (test_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
+#define rpc_set_queued(t) (set_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
+#define rpc_clear_queued(t) \
+ do { \
+ smp_mb__before_clear_bit(); \
+ clear_bit(RPC_TASK_QUEUED, &(t)->tk_runstate); \
+ smp_mb__after_clear_bit(); \
+ } while (0)
+
+#define rpc_start_wakeup(t) \
+ (test_and_set_bit(RPC_TASK_WAKEUP, &(t)->tk_runstate) == 0)
+#define rpc_finish_wakeup(t) \
+ do { \
+ smp_mb__before_clear_bit(); \
+ clear_bit(RPC_TASK_WAKEUP, &(t)->tk_runstate); \
+ smp_mb__after_clear_bit(); \
+ } while (0)
+
+/*
+ * Task priorities.
+ * Note: if you change these, you must also change
+ * the task initialization definitions below.
+ */
+#define RPC_PRIORITY_LOW 0
+#define RPC_PRIORITY_NORMAL 1
+#define RPC_PRIORITY_HIGH 2
+#define RPC_NR_PRIORITY (RPC_PRIORITY_HIGH+1)
+
+/*
+ * RPC synchronization objects
+ */
+struct rpc_wait_queue {
+ spinlock_t lock;
+ struct list_head tasks[RPC_NR_PRIORITY]; /* task queue for each priority level */
+ unsigned long cookie; /* cookie of last task serviced */
+ unsigned char maxpriority; /* maximum priority (0 if queue is not a priority queue) */
+ unsigned char priority; /* current priority */
+ unsigned char count; /* # task groups remaining serviced so far */
+ unsigned char nr; /* # tasks remaining for cookie */
+#ifdef RPC_DEBUG
+ const char * name;
+#endif
+};
+
+/*
+ * This is the # requests to send consecutively
+ * from a single cookie. The aim is to improve
+ * performance of NFS operations such as read/write.
+ */
+#define RPC_BATCH_COUNT 16
+
+#ifndef RPC_DEBUG
+# define RPC_WAITQ_INIT(var,qname) { \
+ .lock = SPIN_LOCK_UNLOCKED, \
+ .tasks = { \
+ [0] = LIST_HEAD_INIT(var.tasks[0]), \
+ [1] = LIST_HEAD_INIT(var.tasks[1]), \
+ [2] = LIST_HEAD_INIT(var.tasks[2]), \
+ }, \
+ }
+#else
+# define RPC_WAITQ_INIT(var,qname) { \
+ .lock = SPIN_LOCK_UNLOCKED, \
+ .tasks = { \
+ [0] = LIST_HEAD_INIT(var.tasks[0]), \
+ [1] = LIST_HEAD_INIT(var.tasks[1]), \
+ [2] = LIST_HEAD_INIT(var.tasks[2]), \
+ }, \
+ .name = qname, \
+ }
+#endif
+# define RPC_WAITQ(var,qname) struct rpc_wait_queue var = RPC_WAITQ_INIT(var,qname)
+
+#define RPC_IS_PRIORITY(q) ((q)->maxpriority > 0)
+
+/*
+ * Function prototypes
+ */
+struct rpc_task *rpc_new_task(struct rpc_clnt *, rpc_action, int flags);
+struct rpc_task *rpc_new_child(struct rpc_clnt *, struct rpc_task *parent);
+void rpc_init_task(struct rpc_task *, struct rpc_clnt *,
+ rpc_action exitfunc, int flags);
+void rpc_release_task(struct rpc_task *);
+void rpc_killall_tasks(struct rpc_clnt *);
+int rpc_execute(struct rpc_task *);
+void rpc_run_child(struct rpc_task *parent, struct rpc_task *child,
+ rpc_action action);
+void rpc_init_priority_wait_queue(struct rpc_wait_queue *, const char *);
+void rpc_init_wait_queue(struct rpc_wait_queue *, const char *);
+void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *,
+ rpc_action action, rpc_action timer);
+void rpc_wake_up_task(struct rpc_task *);
+void rpc_wake_up(struct rpc_wait_queue *);
+struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *);
+void rpc_wake_up_status(struct rpc_wait_queue *, int);
+void rpc_delay(struct rpc_task *, unsigned long);
+void * rpc_malloc(struct rpc_task *, size_t);
+int rpciod_up(void);
+void rpciod_down(void);
+void rpciod_wake_up(void);
+#ifdef RPC_DEBUG
+void rpc_show_tasks(void);
+#endif
+int rpc_init_mempool(void);
+void rpc_destroy_mempool(void);
+
+static inline void rpc_exit(struct rpc_task *task, int status)
+{
+ task->tk_status = status;
+ task->tk_action = NULL;
+}
+
+#ifdef RPC_DEBUG
+static inline const char * rpc_qname(struct rpc_wait_queue *q)
+{
+ return ((q && q->name) ? q->name : "unknown");
+}
+#endif
+
+#endif /* _LINUX_SUNRPC_SCHED_H_ */
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
new file mode 100644
index 00000000000..0d6ed3c8bdc
--- /dev/null
+++ b/include/linux/sunrpc/stats.h
@@ -0,0 +1,78 @@
+/*
+ * linux/include/linux/sunrpc/stats.h
+ *
+ * Client statistics collection for SUN RPC
+ *
+ * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_STATS_H
+#define _LINUX_SUNRPC_STATS_H
+
+#include <linux/config.h>
+#include <linux/proc_fs.h>
+
+struct rpc_stat {
+ struct rpc_program * program;
+
+ unsigned int netcnt,
+ netudpcnt,
+ nettcpcnt,
+ nettcpconn,
+ netreconn;
+ unsigned int rpccnt,
+ rpcretrans,
+ rpcauthrefresh,
+ rpcgarbage;
+};
+
+struct svc_stat {
+ struct svc_program * program;
+
+ unsigned int netcnt,
+ netudpcnt,
+ nettcpcnt,
+ nettcpconn;
+ unsigned int rpccnt,
+ rpcbadfmt,
+ rpcbadauth,
+ rpcbadclnt;
+};
+
+void rpc_proc_init(void);
+void rpc_proc_exit(void);
+#ifdef MODULE
+void rpc_modcount(struct inode *, int);
+#endif
+
+#ifdef CONFIG_PROC_FS
+struct proc_dir_entry * rpc_proc_register(struct rpc_stat *);
+void rpc_proc_unregister(const char *);
+void rpc_proc_zero(struct rpc_program *);
+struct proc_dir_entry * svc_proc_register(struct svc_stat *,
+ struct file_operations *);
+void svc_proc_unregister(const char *);
+
+void svc_seq_show(struct seq_file *,
+ const struct svc_stat *);
+
+extern struct proc_dir_entry *proc_net_rpc;
+
+#else
+
+static inline struct proc_dir_entry *rpc_proc_register(struct rpc_stat *s) { return NULL; }
+static inline void rpc_proc_unregister(const char *p) {}
+static inline void rpc_proc_zero(struct rpc_program *p) {}
+
+static inline struct proc_dir_entry *svc_proc_register(struct svc_stat *s,
+ struct file_operations *f) { return NULL; }
+static inline void svc_proc_unregister(const char *p) {}
+
+static inline void svc_seq_show(struct seq_file *seq,
+ const struct svc_stat *st) {}
+
+#define proc_net_rpc NULL
+
+#endif
+
+#endif /* _LINUX_SUNRPC_STATS_H */
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
new file mode 100644
index 00000000000..37003970cf2
--- /dev/null
+++ b/include/linux/sunrpc/svc.h
@@ -0,0 +1,306 @@
+/*
+ * linux/include/linux/sunrpc/svc.h
+ *
+ * RPC server declarations.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+
+#ifndef SUNRPC_SVC_H
+#define SUNRPC_SVC_H
+
+#include <linux/in.h>
+#include <linux/sunrpc/types.h>
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/svcauth.h>
+#include <linux/wait.h>
+#include <linux/mm.h>
+
+/*
+ * RPC service.
+ *
+ * An RPC service is a ``daemon,'' possibly multithreaded, which
+ * receives and processes incoming RPC messages.
+ * It has one or more transport sockets associated with it, and maintains
+ * a list of idle threads waiting for input.
+ *
+ * We currently do not support more than one RPC program per daemon.
+ */
+struct svc_serv {
+ struct list_head sv_threads; /* idle server threads */
+ struct list_head sv_sockets; /* pending sockets */
+ struct svc_program * sv_program; /* RPC program */
+ struct svc_stat * sv_stats; /* RPC statistics */
+ spinlock_t sv_lock;
+ unsigned int sv_nrthreads; /* # of server threads */
+ unsigned int sv_bufsz; /* datagram buffer size */
+ unsigned int sv_xdrsize; /* XDR buffer size */
+
+ struct list_head sv_permsocks; /* all permanent sockets */
+ struct list_head sv_tempsocks; /* all temporary sockets */
+ int sv_tmpcnt; /* count of temporary sockets */
+
+ char * sv_name; /* service name */
+};
+
+/*
+ * Maximum payload size supported by a kernel RPC server.
+ * This is use to determine the max number of pages nfsd is
+ * willing to return in a single READ operation.
+ */
+#define RPCSVC_MAXPAYLOAD (64*1024u)
+
+/*
+ * RPC Requsts and replies are stored in one or more pages.
+ * We maintain an array of pages for each server thread.
+ * Requests are copied into these pages as they arrive. Remaining
+ * pages are available to write the reply into.
+ *
+ * Pages are sent using ->sendpage so each server thread needs to
+ * allocate more to replace those used in sending. To help keep track
+ * of these pages we have a receive list where all pages initialy live,
+ * and a send list where pages are moved to when there are to be part
+ * of a reply.
+ *
+ * We use xdr_buf for holding responses as it fits well with NFS
+ * read responses (that have a header, and some data pages, and possibly
+ * a tail) and means we can share some client side routines.
+ *
+ * The xdr_buf.head kvec always points to the first page in the rq_*pages
+ * list. The xdr_buf.pages pointer points to the second page on that
+ * list. xdr_buf.tail points to the end of the first page.
+ * This assumes that the non-page part of an rpc reply will fit
+ * in a page - NFSd ensures this. lockd also has no trouble.
+ *
+ * Each request/reply pair can have at most one "payload", plus two pages,
+ * one for the request, and one for the reply.
+ */
+#define RPCSVC_MAXPAGES ((RPCSVC_MAXPAYLOAD+PAGE_SIZE-1)/PAGE_SIZE + 2)
+
+static inline u32 svc_getu32(struct kvec *iov)
+{
+ u32 val, *vp;
+ vp = iov->iov_base;
+ val = *vp++;
+ iov->iov_base = (void*)vp;
+ iov->iov_len -= sizeof(u32);
+ return val;
+}
+
+static inline void svc_ungetu32(struct kvec *iov)
+{
+ u32 *vp = (u32 *)iov->iov_base;
+ iov->iov_base = (void *)(vp - 1);
+ iov->iov_len += sizeof(*vp);
+}
+
+static inline void svc_putu32(struct kvec *iov, u32 val)
+{
+ u32 *vp = iov->iov_base + iov->iov_len;
+ *vp = val;
+ iov->iov_len += sizeof(u32);
+}
+
+
+/*
+ * The context of a single thread, including the request currently being
+ * processed.
+ * NOTE: First two items must be prev/next.
+ */
+struct svc_rqst {
+ struct list_head rq_list; /* idle list */
+ struct svc_sock * rq_sock; /* socket */
+ struct sockaddr_in rq_addr; /* peer address */
+ int rq_addrlen;
+
+ struct svc_serv * rq_server; /* RPC service definition */
+ struct svc_procedure * rq_procinfo; /* procedure info */
+ struct auth_ops * rq_authop; /* authentication flavour */
+ struct svc_cred rq_cred; /* auth info */
+ struct sk_buff * rq_skbuff; /* fast recv inet buffer */
+ struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */
+
+ struct xdr_buf rq_arg;
+ struct xdr_buf rq_res;
+ struct page * rq_argpages[RPCSVC_MAXPAGES];
+ struct page * rq_respages[RPCSVC_MAXPAGES];
+ int rq_restailpage;
+ short rq_argused; /* pages used for argument */
+ short rq_arghi; /* pages available in argument page list */
+ short rq_resused; /* pages used for result */
+
+ u32 rq_xid; /* transmission id */
+ u32 rq_prog; /* program number */
+ u32 rq_vers; /* program version */
+ u32 rq_proc; /* procedure number */
+ u32 rq_prot; /* IP protocol */
+ unsigned short
+ rq_secure : 1; /* secure port */
+
+
+ __u32 rq_daddr; /* dest addr of request - reply from here */
+
+ void * rq_argp; /* decoded arguments */
+ void * rq_resp; /* xdr'd results */
+ void * rq_auth_data; /* flavor-specific data */
+
+ int rq_reserved; /* space on socket outq
+ * reserved for this request
+ */
+
+ struct cache_req rq_chandle; /* handle passed to caches for
+ * request delaying
+ */
+ /* Catering to nfsd */
+ struct auth_domain * rq_client; /* RPC peer info */
+ struct svc_cacherep * rq_cacherep; /* cache info */
+ struct knfsd_fh * rq_reffh; /* Referrence filehandle, used to
+ * determine what device number
+ * to report (real or virtual)
+ */
+
+ wait_queue_head_t rq_wait; /* synchronization */
+};
+
+/*
+ * Check buffer bounds after decoding arguments
+ */
+static inline int
+xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
+{
+ char *cp = (char *)p;
+ struct kvec *vec = &rqstp->rq_arg.head[0];
+ return cp - (char*)vec->iov_base <= vec->iov_len;
+}
+
+static inline int
+xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
+{
+ struct kvec *vec = &rqstp->rq_res.head[0];
+ char *cp = (char*)p;
+
+ vec->iov_len = cp - (char*)vec->iov_base;
+
+ return vec->iov_len <= PAGE_SIZE;
+}
+
+static inline int svc_take_page(struct svc_rqst *rqstp)
+{
+ if (rqstp->rq_arghi <= rqstp->rq_argused)
+ return -ENOMEM;
+ rqstp->rq_arghi--;
+ rqstp->rq_respages[rqstp->rq_resused] =
+ rqstp->rq_argpages[rqstp->rq_arghi];
+ rqstp->rq_resused++;
+ return 0;
+}
+
+static inline void svc_pushback_allpages(struct svc_rqst *rqstp)
+{
+ while (rqstp->rq_resused) {
+ if (rqstp->rq_respages[--rqstp->rq_resused] == NULL)
+ continue;
+ rqstp->rq_argpages[rqstp->rq_arghi++] =
+ rqstp->rq_respages[rqstp->rq_resused];
+ rqstp->rq_respages[rqstp->rq_resused] = NULL;
+ }
+}
+
+static inline void svc_pushback_unused_pages(struct svc_rqst *rqstp)
+{
+ while (rqstp->rq_resused &&
+ rqstp->rq_res.pages != &rqstp->rq_respages[rqstp->rq_resused]) {
+
+ if (rqstp->rq_respages[--rqstp->rq_resused] != NULL) {
+ rqstp->rq_argpages[rqstp->rq_arghi++] =
+ rqstp->rq_respages[rqstp->rq_resused];
+ rqstp->rq_respages[rqstp->rq_resused] = NULL;
+ }
+ }
+}
+
+static inline void svc_free_allpages(struct svc_rqst *rqstp)
+{
+ while (rqstp->rq_resused) {
+ if (rqstp->rq_respages[--rqstp->rq_resused] == NULL)
+ continue;
+ put_page(rqstp->rq_respages[rqstp->rq_resused]);
+ rqstp->rq_respages[rqstp->rq_resused] = NULL;
+ }
+}
+
+struct svc_deferred_req {
+ u32 prot; /* protocol (UDP or TCP) */
+ struct sockaddr_in addr;
+ struct svc_sock *svsk; /* where reply must go */
+ struct cache_deferred_req handle;
+ int argslen;
+ u32 args[0];
+};
+
+/*
+ * RPC program
+ */
+struct svc_program {
+ u32 pg_prog; /* program number */
+ unsigned int pg_lovers; /* lowest version */
+ unsigned int pg_hivers; /* lowest version */
+ unsigned int pg_nvers; /* number of versions */
+ struct svc_version ** pg_vers; /* version array */
+ char * pg_name; /* service name */
+ char * pg_class; /* class name: services sharing authentication */
+ struct svc_stat * pg_stats; /* rpc statistics */
+ int (*pg_authenticate)(struct svc_rqst *);
+};
+
+/*
+ * RPC program version
+ */
+struct svc_version {
+ u32 vs_vers; /* version number */
+ u32 vs_nproc; /* number of procedures */
+ struct svc_procedure * vs_proc; /* per-procedure info */
+ u32 vs_xdrsize; /* xdrsize needed for this version */
+
+ /* Override dispatch function (e.g. when caching replies).
+ * A return value of 0 means drop the request.
+ * vs_dispatch == NULL means use default dispatcher.
+ */
+ int (*vs_dispatch)(struct svc_rqst *, u32 *);
+};
+
+/*
+ * RPC procedure info
+ */
+typedef int (*svc_procfunc)(struct svc_rqst *, void *argp, void *resp);
+struct svc_procedure {
+ svc_procfunc pc_func; /* process the request */
+ kxdrproc_t pc_decode; /* XDR decode args */
+ kxdrproc_t pc_encode; /* XDR encode result */
+ kxdrproc_t pc_release; /* XDR free result */
+ unsigned int pc_argsize; /* argument struct size */
+ unsigned int pc_ressize; /* result struct size */
+ unsigned int pc_count; /* call count */
+ unsigned int pc_cachetype; /* cache info (NFS) */
+ unsigned int pc_xdrressize; /* maximum size of XDR reply */
+};
+
+/*
+ * This is the RPC server thread function prototype
+ */
+typedef void (*svc_thread_fn)(struct svc_rqst *);
+
+/*
+ * Function prototypes.
+ */
+struct svc_serv * svc_create(struct svc_program *, unsigned int);
+int svc_create_thread(svc_thread_fn, struct svc_serv *);
+void svc_exit_thread(struct svc_rqst *);
+void svc_destroy(struct svc_serv *);
+int svc_process(struct svc_serv *, struct svc_rqst *);
+int svc_register(struct svc_serv *, int, unsigned short);
+void svc_wake_up(struct svc_serv *);
+void svc_reserve(struct svc_rqst *rqstp, int space);
+
+#endif /* SUNRPC_SVC_H */
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
new file mode 100644
index 00000000000..c119ce7cbd2
--- /dev/null
+++ b/include/linux/sunrpc/svcauth.h
@@ -0,0 +1,167 @@
+/*
+ * linux/include/linux/sunrpc/svcauth.h
+ *
+ * RPC server-side authentication stuff.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_SVCAUTH_H_
+#define _LINUX_SUNRPC_SVCAUTH_H_
+
+#ifdef __KERNEL__
+
+#include <linux/string.h>
+#include <linux/sunrpc/msg_prot.h>
+#include <linux/sunrpc/cache.h>
+#include <linux/hash.h>
+
+#define SVC_CRED_NGROUPS 32
+struct svc_cred {
+ uid_t cr_uid;
+ gid_t cr_gid;
+ struct group_info *cr_group_info;
+};
+
+struct svc_rqst; /* forward decl */
+
+/* Authentication is done in the context of a domain.
+ *
+ * Currently, the nfs server uses the auth_domain to stand
+ * for the "client" listed in /etc/exports.
+ *
+ * More generally, a domain might represent a group of clients using
+ * a common mechanism for authentication and having a common mapping
+ * between local identity (uid) and network identity. All clients
+ * in a domain have similar general access rights. Each domain can
+ * contain multiple principals which will have different specific right
+ * based on normal Discretionary Access Control.
+ *
+ * A domain is created by an authentication flavour module based on name
+ * only. Userspace then fills in detail on demand.
+ *
+ * In the case of auth_unix and auth_null, the auth_domain is also
+ * associated with entries in another cache representing the mapping
+ * of ip addresses to the given client.
+ */
+struct auth_domain {
+ struct cache_head h;
+ char *name;
+ int flavour;
+};
+
+/*
+ * Each authentication flavour registers an auth_ops
+ * structure.
+ * name is simply the name.
+ * flavour gives the auth flavour. It determines where the flavour is registered
+ * accept() is given a request and should verify it.
+ * It should inspect the authenticator and verifier, and possibly the data.
+ * If there is a problem with the authentication *authp should be set.
+ * The return value of accept() can indicate:
+ * OK - authorised. client and credential are set in rqstp.
+ * reqbuf points to arguments
+ * resbuf points to good place for results. verfier
+ * is (probably) already in place. Certainly space is
+ * reserved for it.
+ * DROP - simply drop the request. It may have been deferred
+ * GARBAGE - rpc garbage_args error
+ * SYSERR - rpc system_err error
+ * DENIED - authp holds reason for denial.
+ * COMPLETE - the reply is encoded already and ready to be sent; no
+ * further processing is necessary. (This is used for processing
+ * null procedure calls which are used to set up encryption
+ * contexts.)
+ *
+ * accept is passed the proc number so that it can accept NULL rpc requests
+ * even if it cannot authenticate the client (as is sometimes appropriate).
+ *
+ * release() is given a request after the procedure has been run.
+ * It should sign/encrypt the results if needed
+ * It should return:
+ * OK - the resbuf is ready to be sent
+ * DROP - the reply should be quitely dropped
+ * DENIED - authp holds a reason for MSG_DENIED
+ * SYSERR - rpc system_err
+ *
+ * domain_release()
+ * This call releases a domain.
+ */
+struct auth_ops {
+ char * name;
+ struct module *owner;
+ int flavour;
+ int (*accept)(struct svc_rqst *rq, u32 *authp);
+ int (*release)(struct svc_rqst *rq);
+ void (*domain_release)(struct auth_domain *);
+ int (*set_client)(struct svc_rqst *rq);
+};
+
+#define SVC_GARBAGE 1
+#define SVC_SYSERR 2
+#define SVC_VALID 3
+#define SVC_NEGATIVE 4
+#define SVC_OK 5
+#define SVC_DROP 6
+#define SVC_DENIED 7
+#define SVC_PENDING 8
+#define SVC_COMPLETE 9
+
+
+extern int svc_authenticate(struct svc_rqst *rqstp, u32 *authp);
+extern int svc_authorise(struct svc_rqst *rqstp);
+extern int svc_set_client(struct svc_rqst *rqstp);
+extern int svc_auth_register(rpc_authflavor_t flavor, struct auth_ops *aops);
+extern void svc_auth_unregister(rpc_authflavor_t flavor);
+
+extern struct auth_domain *unix_domain_find(char *name);
+extern void auth_domain_put(struct auth_domain *item);
+extern int auth_unix_add_addr(struct in_addr addr, struct auth_domain *dom);
+extern struct auth_domain *auth_domain_lookup(struct auth_domain *item, int set);
+extern struct auth_domain *auth_domain_find(char *name);
+extern struct auth_domain *auth_unix_lookup(struct in_addr addr);
+extern int auth_unix_forget_old(struct auth_domain *dom);
+extern void svcauth_unix_purge(void);
+
+static inline unsigned long hash_str(char *name, int bits)
+{
+ unsigned long hash = 0;
+ unsigned long l = 0;
+ int len = 0;
+ unsigned char c;
+ do {
+ if (unlikely(!(c = *name++))) {
+ c = (char)len; len = -1;
+ }
+ l = (l << 8) | c;
+ len++;
+ if ((len & (BITS_PER_LONG/8-1))==0)
+ hash = hash_long(hash^l, BITS_PER_LONG);
+ } while (len);
+ return hash >> (BITS_PER_LONG - bits);
+}
+
+static inline unsigned long hash_mem(char *buf, int length, int bits)
+{
+ unsigned long hash = 0;
+ unsigned long l = 0;
+ int len = 0;
+ unsigned char c;
+ do {
+ if (len == length) {
+ c = (char)len; len = -1;
+ } else
+ c = *buf++;
+ l = (l << 8) | c;
+ len++;
+ if ((len & (BITS_PER_LONG/8-1))==0)
+ hash = hash_long(hash^l, BITS_PER_LONG);
+ } while (len);
+ return hash >> (BITS_PER_LONG - bits);
+}
+
+extern struct cache_detail auth_domain_cache, ip_map_cache;
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_SUNRPC_SVCAUTH_H_ */
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
new file mode 100644
index 00000000000..3a2206f61de
--- /dev/null
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -0,0 +1,27 @@
+/*
+ * linux/include/linux/svcauth_gss.h
+ *
+ * Bruce Fields <bfields@umich.edu>
+ * Copyright (c) 2002 The Regents of the Unviersity of Michigan
+ *
+ * $Id$
+ *
+ */
+
+#ifndef _LINUX_SUNRPC_SVCAUTH_GSS_H
+#define _LINUX_SUNRPC_SVCAUTH_GSS_H
+
+#ifdef __KERNEL__
+#include <linux/sched.h>
+#include <linux/sunrpc/types.h>
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/svcauth.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/sunrpc/auth_gss.h>
+
+int gss_svc_init(void);
+void gss_svc_shutdown(void);
+int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name);
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_SVCAUTH_GSS_H */
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
new file mode 100644
index 00000000000..d33c6face03
--- /dev/null
+++ b/include/linux/sunrpc/svcsock.h
@@ -0,0 +1,65 @@
+/*
+ * linux/include/linux/sunrpc/svcsock.h
+ *
+ * RPC server socket I/O.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef SUNRPC_SVCSOCK_H
+#define SUNRPC_SVCSOCK_H
+
+#include <linux/sunrpc/svc.h>
+
+/*
+ * RPC server socket.
+ */
+struct svc_sock {
+ struct list_head sk_ready; /* list of ready sockets */
+ struct list_head sk_list; /* list of all sockets */
+ struct socket * sk_sock; /* berkeley socket layer */
+ struct sock * sk_sk; /* INET layer */
+
+ struct svc_serv * sk_server; /* service for this socket */
+ unsigned int sk_inuse; /* use count */
+ unsigned long sk_flags;
+#define SK_BUSY 0 /* enqueued/receiving */
+#define SK_CONN 1 /* conn pending */
+#define SK_CLOSE 2 /* dead or dying */
+#define SK_DATA 3 /* data pending */
+#define SK_TEMP 4 /* temp (TCP) socket */
+#define SK_DEAD 6 /* socket closed */
+#define SK_CHNGBUF 7 /* need to change snd/rcv buffer sizes */
+#define SK_DEFERRED 8 /* request on sk_deferred */
+
+ int sk_reserved; /* space on outq that is reserved */
+
+ struct list_head sk_deferred; /* deferred requests that need to
+ * be revisted */
+ struct semaphore sk_sem; /* to serialize sending data */
+
+ int (*sk_recvfrom)(struct svc_rqst *rqstp);
+ int (*sk_sendto)(struct svc_rqst *rqstp);
+
+ /* We keep the old state_change and data_ready CB's here */
+ void (*sk_ostate)(struct sock *);
+ void (*sk_odata)(struct sock *, int bytes);
+ void (*sk_owspace)(struct sock *);
+
+ /* private TCP part */
+ int sk_reclen; /* length of record */
+ int sk_tcplen; /* current read length */
+ time_t sk_lastrecv; /* time of last received request */
+};
+
+/*
+ * Function prototypes.
+ */
+int svc_makesock(struct svc_serv *, int, unsigned short);
+void svc_delete_socket(struct svc_sock *);
+int svc_recv(struct svc_serv *, struct svc_rqst *, long);
+int svc_send(struct svc_rqst *);
+void svc_drop(struct svc_rqst *);
+void svc_sock_update_bufs(struct svc_serv *serv);
+
+#endif /* SUNRPC_SVCSOCK_H */
diff --git a/include/linux/sunrpc/timer.h b/include/linux/sunrpc/timer.h
new file mode 100644
index 00000000000..a67fd734c73
--- /dev/null
+++ b/include/linux/sunrpc/timer.h
@@ -0,0 +1,49 @@
+/*
+ * linux/include/linux/sunrpc/timer.h
+ *
+ * Declarations for the RPC transport timer.
+ *
+ * Copyright (C) 2002 Trond Myklebust <trond.myklebust@fys.uio.no>
+ */
+
+#ifndef _LINUX_SUNRPC_TIMER_H
+#define _LINUX_SUNRPC_TIMER_H
+
+#include <asm/atomic.h>
+
+struct rpc_rtt {
+ unsigned long timeo; /* default timeout value */
+ unsigned long srtt[5]; /* smoothed round trip time << 3 */
+ unsigned long sdrtt[5]; /* smoothed medium deviation of RTT */
+ int ntimeouts[5]; /* Number of timeouts for the last request */
+};
+
+
+extern void rpc_init_rtt(struct rpc_rtt *rt, unsigned long timeo);
+extern void rpc_update_rtt(struct rpc_rtt *rt, unsigned timer, long m);
+extern unsigned long rpc_calc_rto(struct rpc_rtt *rt, unsigned timer);
+
+static inline void rpc_set_timeo(struct rpc_rtt *rt, int timer, int ntimeo)
+{
+ int *t;
+ if (!timer)
+ return;
+ t = &rt->ntimeouts[timer-1];
+ if (ntimeo < *t) {
+ if (*t > 0)
+ (*t)--;
+ } else {
+ if (ntimeo > 8)
+ ntimeo = 8;
+ *t = ntimeo;
+ }
+}
+
+static inline int rpc_ntimeo(struct rpc_rtt *rt, int timer)
+{
+ if (!timer)
+ return 0;
+ return rt->ntimeouts[timer-1];
+}
+
+#endif /* _LINUX_SUNRPC_TIMER_H */
diff --git a/include/linux/sunrpc/types.h b/include/linux/sunrpc/types.h
new file mode 100644
index 00000000000..d222f47550a
--- /dev/null
+++ b/include/linux/sunrpc/types.h
@@ -0,0 +1,22 @@
+/*
+ * linux/include/linux/sunrpc/types.h
+ *
+ * Generic types and misc stuff for RPC.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_TYPES_H_
+#define _LINUX_SUNRPC_TYPES_H_
+
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+#include <linux/sunrpc/debug.h>
+#include <linux/list.h>
+
+/*
+ * Shorthands
+ */
+#define signalled() (signal_pending(current))
+
+#endif /* _LINUX_SUNRPC_TYPES_H_ */
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
new file mode 100644
index 00000000000..541dcf838ab
--- /dev/null
+++ b/include/linux/sunrpc/xdr.h
@@ -0,0 +1,192 @@
+/*
+ * include/linux/sunrpc/xdr.h
+ *
+ * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _SUNRPC_XDR_H_
+#define _SUNRPC_XDR_H_
+
+#ifdef __KERNEL__
+
+#include <linux/uio.h>
+#include <asm/byteorder.h>
+
+/*
+ * Buffer adjustment
+ */
+#define XDR_QUADLEN(l) (((l) + 3) >> 2)
+
+/*
+ * Generic opaque `network object.' At the kernel level, this type
+ * is used only by lockd.
+ */
+#define XDR_MAX_NETOBJ 1024
+struct xdr_netobj {
+ unsigned int len;
+ u8 * data;
+};
+
+/*
+ * This is the generic XDR function. rqstp is either a rpc_rqst (client
+ * side) or svc_rqst pointer (server side).
+ * Encode functions always assume there's enough room in the buffer.
+ */
+typedef int (*kxdrproc_t)(void *rqstp, u32 *data, void *obj);
+
+/*
+ * Basic structure for transmission/reception of a client XDR message.
+ * Features a header (for a linear buffer containing RPC headers
+ * and the data payload for short messages), and then an array of
+ * pages.
+ * The tail iovec allows you to append data after the page array. Its
+ * main interest is for appending padding to the pages in order to
+ * satisfy the int_32-alignment requirements in RFC1832.
+ *
+ * For the future, we might want to string several of these together
+ * in a list if anybody wants to make use of NFSv4 COMPOUND
+ * operations and/or has a need for scatter/gather involving pages.
+ */
+struct xdr_buf {
+ struct kvec head[1], /* RPC header + non-page data */
+ tail[1]; /* Appended after page data */
+
+ struct page ** pages; /* Array of contiguous pages */
+ unsigned int page_base, /* Start of page data */
+ page_len; /* Length of page data */
+
+ unsigned int buflen, /* Total length of storage buffer */
+ len; /* Length of XDR encoded message */
+
+};
+
+/*
+ * pre-xdr'ed macros.
+ */
+
+#define xdr_zero __constant_htonl(0)
+#define xdr_one __constant_htonl(1)
+#define xdr_two __constant_htonl(2)
+
+#define rpc_success __constant_htonl(RPC_SUCCESS)
+#define rpc_prog_unavail __constant_htonl(RPC_PROG_UNAVAIL)
+#define rpc_prog_mismatch __constant_htonl(RPC_PROG_MISMATCH)
+#define rpc_proc_unavail __constant_htonl(RPC_PROC_UNAVAIL)
+#define rpc_garbage_args __constant_htonl(RPC_GARBAGE_ARGS)
+#define rpc_system_err __constant_htonl(RPC_SYSTEM_ERR)
+
+#define rpc_auth_ok __constant_htonl(RPC_AUTH_OK)
+#define rpc_autherr_badcred __constant_htonl(RPC_AUTH_BADCRED)
+#define rpc_autherr_rejectedcred __constant_htonl(RPC_AUTH_REJECTEDCRED)
+#define rpc_autherr_badverf __constant_htonl(RPC_AUTH_BADVERF)
+#define rpc_autherr_rejectedverf __constant_htonl(RPC_AUTH_REJECTEDVERF)
+#define rpc_autherr_tooweak __constant_htonl(RPC_AUTH_TOOWEAK)
+#define rpcsec_gsserr_credproblem __constant_htonl(RPCSEC_GSS_CREDPROBLEM)
+#define rpcsec_gsserr_ctxproblem __constant_htonl(RPCSEC_GSS_CTXPROBLEM)
+#define rpc_autherr_oldseqnum __constant_htonl(101)
+
+/*
+ * Miscellaneous XDR helper functions
+ */
+u32 * xdr_encode_opaque_fixed(u32 *p, const void *ptr, unsigned int len);
+u32 * xdr_encode_opaque(u32 *p, const void *ptr, unsigned int len);
+u32 * xdr_encode_string(u32 *p, const char *s);
+u32 * xdr_decode_string(u32 *p, char **sp, int *lenp, int maxlen);
+u32 * xdr_decode_string_inplace(u32 *p, char **sp, int *lenp, int maxlen);
+u32 * xdr_encode_netobj(u32 *p, const struct xdr_netobj *);
+u32 * xdr_decode_netobj(u32 *p, struct xdr_netobj *);
+
+void xdr_encode_pages(struct xdr_buf *, struct page **, unsigned int,
+ unsigned int);
+void xdr_inline_pages(struct xdr_buf *, unsigned int,
+ struct page **, unsigned int, unsigned int);
+
+static inline u32 *xdr_encode_array(u32 *p, const void *s, unsigned int len)
+{
+ return xdr_encode_opaque(p, s, len);
+}
+
+/*
+ * Decode 64bit quantities (NFSv3 support)
+ */
+static inline u32 *
+xdr_encode_hyper(u32 *p, __u64 val)
+{
+ *p++ = htonl(val >> 32);
+ *p++ = htonl(val & 0xFFFFFFFF);
+ return p;
+}
+
+static inline u32 *
+xdr_decode_hyper(u32 *p, __u64 *valp)
+{
+ *valp = ((__u64) ntohl(*p++)) << 32;
+ *valp |= ntohl(*p++);
+ return p;
+}
+
+/*
+ * Adjust kvec to reflect end of xdr'ed data (RPC client XDR)
+ */
+static inline int
+xdr_adjust_iovec(struct kvec *iov, u32 *p)
+{
+ return iov->iov_len = ((u8 *) p - (u8 *) iov->iov_base);
+}
+
+/*
+ * Maximum number of iov's we use.
+ */
+#define MAX_IOVEC (12)
+
+/*
+ * XDR buffer helper functions
+ */
+extern void xdr_shift_buf(struct xdr_buf *, size_t);
+extern void xdr_buf_from_iov(struct kvec *, struct xdr_buf *);
+extern int xdr_buf_subsegment(struct xdr_buf *, struct xdr_buf *, int, int);
+extern int xdr_buf_read_netobj(struct xdr_buf *, struct xdr_netobj *, int);
+extern int read_bytes_from_xdr_buf(struct xdr_buf *buf, int base, void *obj, int len);
+
+/*
+ * Helper structure for copying from an sk_buff.
+ */
+typedef struct {
+ struct sk_buff *skb;
+ unsigned int offset;
+ size_t count;
+ unsigned int csum;
+} skb_reader_t;
+
+typedef size_t (*skb_read_actor_t)(skb_reader_t *desc, void *to, size_t len);
+
+extern void xdr_partial_copy_from_skb(struct xdr_buf *, unsigned int,
+ skb_reader_t *, skb_read_actor_t);
+
+struct socket;
+struct sockaddr;
+extern int xdr_sendpages(struct socket *, struct sockaddr *, int,
+ struct xdr_buf *, unsigned int, int);
+
+/*
+ * Provide some simple tools for XDR buffer overflow-checking etc.
+ */
+struct xdr_stream {
+ uint32_t *p; /* start of available buffer */
+ struct xdr_buf *buf; /* XDR buffer to read/write */
+
+ uint32_t *end; /* end of available buffer space */
+ struct kvec *iov; /* pointer to the current kvec */
+};
+
+extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, uint32_t *p);
+extern uint32_t *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
+extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages,
+ unsigned int base, unsigned int len);
+extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, uint32_t *p);
+extern uint32_t *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes);
+extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
+
+#endif /* __KERNEL__ */
+
+#endif /* _SUNRPC_XDR_H_ */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
new file mode 100644
index 00000000000..e618c164981
--- /dev/null
+++ b/include/linux/sunrpc/xprt.h
@@ -0,0 +1,232 @@
+/*
+ * linux/include/linux/sunrpc/clnt_xprt.h
+ *
+ * Declarations for the RPC transport interface.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LINUX_SUNRPC_XPRT_H
+#define _LINUX_SUNRPC_XPRT_H
+
+#include <linux/uio.h>
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/xdr.h>
+
+/*
+ * The transport code maintains an estimate on the maximum number of out-
+ * standing RPC requests, using a smoothed version of the congestion
+ * avoidance implemented in 44BSD. This is basically the Van Jacobson
+ * congestion algorithm: If a retransmit occurs, the congestion window is
+ * halved; otherwise, it is incremented by 1/cwnd when
+ *
+ * - a reply is received and
+ * - a full number of requests are outstanding and
+ * - the congestion window hasn't been updated recently.
+ *
+ * Upper procedures may check whether a request would block waiting for
+ * a free RPC slot by using the RPC_CONGESTED() macro.
+ */
+extern unsigned int xprt_udp_slot_table_entries;
+extern unsigned int xprt_tcp_slot_table_entries;
+
+#define RPC_MIN_SLOT_TABLE (2U)
+#define RPC_DEF_SLOT_TABLE (16U)
+#define RPC_MAX_SLOT_TABLE (128U)
+
+#define RPC_CWNDSHIFT (8U)
+#define RPC_CWNDSCALE (1U << RPC_CWNDSHIFT)
+#define RPC_INITCWND RPC_CWNDSCALE
+#define RPC_MAXCWND(xprt) ((xprt)->max_reqs << RPC_CWNDSHIFT)
+#define RPCXPRT_CONGESTED(xprt) ((xprt)->cong >= (xprt)->cwnd)
+
+/* Default timeout values */
+#define RPC_MAX_UDP_TIMEOUT (60*HZ)
+#define RPC_MAX_TCP_TIMEOUT (600*HZ)
+
+/*
+ * Wait duration for an RPC TCP connection to be established. Solaris
+ * NFS over TCP uses 60 seconds, for example, which is in line with how
+ * long a server takes to reboot.
+ */
+#define RPC_CONNECT_TIMEOUT (60*HZ)
+
+/*
+ * Delay an arbitrary number of seconds before attempting to reconnect
+ * after an error.
+ */
+#define RPC_REESTABLISH_TIMEOUT (15*HZ)
+
+/* RPC call and reply header size as number of 32bit words (verifier
+ * size computed separately)
+ */
+#define RPC_CALLHDRSIZE 6
+#define RPC_REPHDRSIZE 4
+
+/*
+ * This describes a timeout strategy
+ */
+struct rpc_timeout {
+ unsigned long to_initval, /* initial timeout */
+ to_maxval, /* max timeout */
+ to_increment; /* if !exponential */
+ unsigned int to_retries; /* max # of retries */
+ unsigned char to_exponential;
+};
+
+/*
+ * This describes a complete RPC request
+ */
+struct rpc_rqst {
+ /*
+ * This is the user-visible part
+ */
+ struct rpc_xprt * rq_xprt; /* RPC client */
+ struct xdr_buf rq_snd_buf; /* send buffer */
+ struct xdr_buf rq_rcv_buf; /* recv buffer */
+
+ /*
+ * This is the private part
+ */
+ struct rpc_task * rq_task; /* RPC task data */
+ __u32 rq_xid; /* request XID */
+ int rq_cong; /* has incremented xprt->cong */
+ int rq_received; /* receive completed */
+ u32 rq_seqno; /* gss seq no. used on req. */
+
+ struct list_head rq_list;
+
+ struct xdr_buf rq_private_buf; /* The receive buffer
+ * used in the softirq.
+ */
+ unsigned long rq_majortimeo; /* major timeout alarm */
+ unsigned long rq_timeout; /* Current timeout value */
+ unsigned int rq_retries; /* # of retries */
+ /*
+ * For authentication (e.g. auth_des)
+ */
+ u32 rq_creddata[2];
+
+ /*
+ * Partial send handling
+ */
+
+ u32 rq_bytes_sent; /* Bytes we have sent */
+
+ unsigned long rq_xtime; /* when transmitted */
+ int rq_ntrans;
+};
+#define rq_svec rq_snd_buf.head
+#define rq_slen rq_snd_buf.len
+
+#define XPRT_LAST_FRAG (1 << 0)
+#define XPRT_COPY_RECM (1 << 1)
+#define XPRT_COPY_XID (1 << 2)
+#define XPRT_COPY_DATA (1 << 3)
+
+struct rpc_xprt {
+ struct socket * sock; /* BSD socket layer */
+ struct sock * inet; /* INET layer */
+
+ struct rpc_timeout timeout; /* timeout parms */
+ struct sockaddr_in addr; /* server address */
+ int prot; /* IP protocol */
+
+ unsigned long cong; /* current congestion */
+ unsigned long cwnd; /* congestion window */
+
+ unsigned int rcvsize, /* socket receive buffer size */
+ sndsize; /* socket send buffer size */
+
+ size_t max_payload; /* largest RPC payload size,
+ in bytes */
+
+ struct rpc_wait_queue sending; /* requests waiting to send */
+ struct rpc_wait_queue resend; /* requests waiting to resend */
+ struct rpc_wait_queue pending; /* requests in flight */
+ struct rpc_wait_queue backlog; /* waiting for slot */
+ struct list_head free; /* free slots */
+ struct rpc_rqst * slot; /* slot table storage */
+ unsigned int max_reqs; /* total slots */
+ unsigned long sockstate; /* Socket state */
+ unsigned char shutdown : 1, /* being shut down */
+ nocong : 1, /* no congestion control */
+ resvport : 1, /* use a reserved port */
+ stream : 1; /* TCP */
+
+ /*
+ * XID
+ */
+ __u32 xid; /* Next XID value to use */
+
+ /*
+ * State of TCP reply receive stuff
+ */
+ u32 tcp_recm, /* Fragment header */
+ tcp_xid, /* Current XID */
+ tcp_reclen, /* fragment length */
+ tcp_offset; /* fragment offset */
+ unsigned long tcp_copied, /* copied to request */
+ tcp_flags;
+ /*
+ * Connection of sockets
+ */
+ struct work_struct sock_connect;
+ unsigned short port;
+ /*
+ * Disconnection of idle sockets
+ */
+ struct work_struct task_cleanup;
+ struct timer_list timer;
+ unsigned long last_used;
+
+ /*
+ * Send stuff
+ */
+ spinlock_t sock_lock; /* lock socket info */
+ spinlock_t xprt_lock; /* lock xprt info */
+ struct rpc_task * snd_task; /* Task blocked in send */
+
+ struct list_head recv;
+
+
+ void (*old_data_ready)(struct sock *, int);
+ void (*old_state_change)(struct sock *);
+ void (*old_write_space)(struct sock *);
+
+ wait_queue_head_t cong_wait;
+};
+
+#ifdef __KERNEL__
+
+struct rpc_xprt * xprt_create_proto(int proto, struct sockaddr_in *addr,
+ struct rpc_timeout *toparms);
+int xprt_destroy(struct rpc_xprt *);
+void xprt_set_timeout(struct rpc_timeout *, unsigned int,
+ unsigned long);
+
+void xprt_reserve(struct rpc_task *);
+int xprt_prepare_transmit(struct rpc_task *);
+void xprt_transmit(struct rpc_task *);
+void xprt_receive(struct rpc_task *);
+int xprt_adjust_timeout(struct rpc_rqst *req);
+void xprt_release(struct rpc_task *);
+void xprt_connect(struct rpc_task *);
+void xprt_sock_setbufsize(struct rpc_xprt *);
+
+#define XPRT_LOCKED 0
+#define XPRT_CONNECT 1
+#define XPRT_CONNECTING 2
+
+#define xprt_connected(xp) (test_bit(XPRT_CONNECT, &(xp)->sockstate))
+#define xprt_set_connected(xp) (set_bit(XPRT_CONNECT, &(xp)->sockstate))
+#define xprt_test_and_set_connected(xp) (test_and_set_bit(XPRT_CONNECT, &(xp)->sockstate))
+#define xprt_test_and_clear_connected(xp) \
+ (test_and_clear_bit(XPRT_CONNECT, &(xp)->sockstate))
+#define xprt_clear_connected(xp) (clear_bit(XPRT_CONNECT, &(xp)->sockstate))
+
+#endif /* __KERNEL__*/
+
+#endif /* _LINUX_SUNRPC_XPRT_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 20:10:32 +0000