1 files changed, 0 insertions, 293 deletions

diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
deleted file mode 100644
index ab4a3be1542a..000000000000
--- a/net/sunrpc/auth_generic.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Generic RPC credential
- *
- * Copyright (C) 2008, Trond Myklebust <Trond.Myklebust@netapp.com>
- */
-
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/sunrpc/auth.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/debug.h>
-#include <linux/sunrpc/sched.h>
-
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-# define RPCDBG_FACILITY	RPCDBG_AUTH
-#endif
-
-#define RPC_MACHINE_CRED_USERID		GLOBAL_ROOT_UID
-#define RPC_MACHINE_CRED_GROUPID	GLOBAL_ROOT_GID
-
-struct generic_cred {
-	struct rpc_cred gc_base;
-	struct auth_cred acred;
-};
-
-static struct rpc_auth generic_auth;
-static const struct rpc_credops generic_credops;
-
-/*
- * Public call interface
- */
-struct rpc_cred *rpc_lookup_cred(void)
-{
-	return rpcauth_lookupcred(&generic_auth, 0);
-}
-EXPORT_SYMBOL_GPL(rpc_lookup_cred);
-
-struct rpc_cred *
-rpc_lookup_generic_cred(struct auth_cred *acred, int flags, gfp_t gfp)
-{
-	return rpcauth_lookup_credcache(&generic_auth, acred, flags, gfp);
-}
-EXPORT_SYMBOL_GPL(rpc_lookup_generic_cred);
-
-struct rpc_cred *rpc_lookup_cred_nonblock(void)
-{
-	return rpcauth_lookupcred(&generic_auth, RPCAUTH_LOOKUP_RCU);
-}
-EXPORT_SYMBOL_GPL(rpc_lookup_cred_nonblock);
-
-/*
- * Public call interface for looking up machine creds.
- */
-struct rpc_cred *rpc_lookup_machine_cred(const char *service_name)
-{
-	struct auth_cred acred = {
-		.uid = RPC_MACHINE_CRED_USERID,
-		.gid = RPC_MACHINE_CRED_GROUPID,
-		.principal = service_name,
-		.machine_cred = 1,
-	};
-
-	dprintk("RPC:       looking up machine cred for service %s\n",
-			service_name);
-	return generic_auth.au_ops->lookup_cred(&generic_auth, &acred, 0);
-}
-EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);
-
-static struct rpc_cred *generic_bind_cred(struct rpc_task *task,
-		struct rpc_cred *cred, int lookupflags)
-{
-	struct rpc_auth *auth = task->tk_client->cl_auth;
-	struct auth_cred *acred = &container_of(cred, struct generic_cred, gc_base)->acred;
-
-	return auth->au_ops->lookup_cred(auth, acred, lookupflags);
-}
-
-static int
-generic_hash_cred(struct auth_cred *acred, unsigned int hashbits)
-{
-	return hash_64(from_kgid(&init_user_ns, acred->gid) |
-		((u64)from_kuid(&init_user_ns, acred->uid) <<
-			(sizeof(gid_t) * 8)), hashbits);
-}
-
-/*
- * Lookup generic creds for current process
- */
-static struct rpc_cred *
-generic_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
-{
-	return rpcauth_lookup_credcache(&generic_auth, acred, flags, GFP_KERNEL);
-}
-
-static struct rpc_cred *
-generic_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t gfp)
-{
-	struct generic_cred *gcred;
-
-	gcred = kmalloc(sizeof(*gcred), gfp);
-	if (gcred == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	rpcauth_init_cred(&gcred->gc_base, acred, &generic_auth, &generic_credops);
-	gcred->gc_base.cr_flags = 1UL << RPCAUTH_CRED_UPTODATE;
-
-	gcred->acred.uid = acred->uid;
-	gcred->acred.gid = acred->gid;
-	gcred->acred.group_info = acred->group_info;
-	gcred->acred.ac_flags = 0;
-	if (gcred->acred.group_info != NULL)
-		get_group_info(gcred->acred.group_info);
-	gcred->acred.machine_cred = acred->machine_cred;
-	gcred->acred.principal = acred->principal;
-
-	dprintk("RPC:       allocated %s cred %p for uid %d gid %d\n",
-			gcred->acred.machine_cred ? "machine" : "generic",
-			gcred,
-			from_kuid(&init_user_ns, acred->uid),
-			from_kgid(&init_user_ns, acred->gid));
-	return &gcred->gc_base;
-}
-
-static void
-generic_free_cred(struct rpc_cred *cred)
-{
-	struct generic_cred *gcred = container_of(cred, struct generic_cred, gc_base);
-
-	dprintk("RPC:       generic_free_cred %p\n", gcred);
-	if (gcred->acred.group_info != NULL)
-		put_group_info(gcred->acred.group_info);
-	kfree(gcred);
-}
-
-static void
-generic_free_cred_callback(struct rcu_head *head)
-{
-	struct rpc_cred *cred = container_of(head, struct rpc_cred, cr_rcu);
-	generic_free_cred(cred);
-}
-
-static void
-generic_destroy_cred(struct rpc_cred *cred)
-{
-	call_rcu(&cred->cr_rcu, generic_free_cred_callback);
-}
-
-static int
-machine_cred_match(struct auth_cred *acred, struct generic_cred *gcred, int flags)
-{
-	if (!gcred->acred.machine_cred ||
-	    gcred->acred.principal != acred->principal ||
-	    !uid_eq(gcred->acred.uid, acred->uid) ||
-	    !gid_eq(gcred->acred.gid, acred->gid))
-		return 0;
-	return 1;
-}
-
-/*
- * Match credentials against current process creds.
- */
-static int
-generic_match(struct auth_cred *acred, struct rpc_cred *cred, int flags)
-{
-	struct generic_cred *gcred = container_of(cred, struct generic_cred, gc_base);
-	int i;
-
-	if (acred->machine_cred)
-		return machine_cred_match(acred, gcred, flags);
-
-	if (!uid_eq(gcred->acred.uid, acred->uid) ||
-	    !gid_eq(gcred->acred.gid, acred->gid) ||
-	    gcred->acred.machine_cred != 0)
-		goto out_nomatch;
-
-	/* Optimisation in the case where pointers are identical... */
-	if (gcred->acred.group_info == acred->group_info)
-		goto out_match;
-
-	/* Slow path... */
-	if (gcred->acred.group_info->ngroups != acred->group_info->ngroups)
-		goto out_nomatch;
-	for (i = 0; i < gcred->acred.group_info->ngroups; i++) {
-		if (!gid_eq(gcred->acred.group_info->gid[i],
-				acred->group_info->gid[i]))
-			goto out_nomatch;
-	}
-out_match:
-	return 1;
-out_nomatch:
-	return 0;
-}
-
-int __init rpc_init_generic_auth(void)
-{
-	return rpcauth_init_credcache(&generic_auth);
-}
-
-void rpc_destroy_generic_auth(void)
-{
-	rpcauth_destroy_credcache(&generic_auth);
-}
-
-/*
- * Test the the current time (now) against the underlying credential key expiry
- * minus a timeout and setup notification.
- *
- * The normal case:
- * If 'now' is before the key expiry minus RPC_KEY_EXPIRE_TIMEO, set
- * the RPC_CRED_NOTIFY_TIMEOUT flag to setup the underlying credential
- * rpc_credops crmatch routine to notify this generic cred when it's key
- * expiration is within RPC_KEY_EXPIRE_TIMEO, and return 0.
- *
- * The error case:
- * If the underlying cred lookup fails, return -EACCES.
- *
- * The 'almost' error case:
- * If 'now' is within key expiry minus RPC_KEY_EXPIRE_TIMEO, but not within
- * key expiry minus RPC_KEY_EXPIRE_FAIL, set the RPC_CRED_EXPIRE_SOON bit
- * on the acred ac_flags and return 0.
- */
-static int
-generic_key_timeout(struct rpc_auth *auth, struct rpc_cred *cred)
-{
-	struct auth_cred *acred = &container_of(cred, struct generic_cred,
-						gc_base)->acred;
-	struct rpc_cred *tcred;
-	int ret = 0;
-
-
-	/* Fast track for non crkey_timeout (no key) underlying credentials */
-	if (auth->au_flags & RPCAUTH_AUTH_NO_CRKEY_TIMEOUT)
-		return 0;
-
-	/* Fast track for the normal case */
-	if (test_bit(RPC_CRED_NOTIFY_TIMEOUT, &acred->ac_flags))
-		return 0;
-
-	/* lookup_cred either returns a valid referenced rpc_cred, or PTR_ERR */
-	tcred = auth->au_ops->lookup_cred(auth, acred, 0);
-	if (IS_ERR(tcred))
-		return -EACCES;
-
-	/* Test for the almost error case */
-	ret = tcred->cr_ops->crkey_timeout(tcred);
-	if (ret != 0) {
-		set_bit(RPC_CRED_KEY_EXPIRE_SOON, &acred->ac_flags);
-		ret = 0;
-	} else {
-		/* In case underlying cred key has been reset */
-		if (test_and_clear_bit(RPC_CRED_KEY_EXPIRE_SOON,
-					&acred->ac_flags))
-			dprintk("RPC:        UID %d Credential key reset\n",
-				from_kuid(&init_user_ns, tcred->cr_uid));
-		/* set up fasttrack for the normal case */
-		set_bit(RPC_CRED_NOTIFY_TIMEOUT, &acred->ac_flags);
-	}
-
-	put_rpccred(tcred);
-	return ret;
-}
-
-static const struct rpc_authops generic_auth_ops = {
-	.owner = THIS_MODULE,
-	.au_name = "Generic",
-	.hash_cred = generic_hash_cred,
-	.lookup_cred = generic_lookup_cred,
-	.crcreate = generic_create_cred,
-	.key_timeout = generic_key_timeout,
-};
-
-static struct rpc_auth generic_auth = {
-	.au_ops = &generic_auth_ops,
-	.au_count = REFCOUNT_INIT(1),
-};
-
-static bool generic_key_to_expire(struct rpc_cred *cred)
-{
-	struct auth_cred *acred = &container_of(cred, struct generic_cred,
-						gc_base)->acred;
-	return test_bit(RPC_CRED_KEY_EXPIRE_SOON, &acred->ac_flags);
-}
-
-static const struct rpc_credops generic_credops = {
-	.cr_name = "Generic cred",
-	.crdestroy = generic_destroy_cred,
-	.crbind = generic_bind_cred,
-	.crmatch = generic_match,
-	.crkey_to_expire = generic_key_to_expire,
-};