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Diffstat (limited to 'include/linux/sunrpc/auth.h')
-rw-r--r--include/linux/sunrpc/auth.h131
1 files changed, 77 insertions, 54 deletions
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 0dd00f4f6810..61e58327b1aa 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/linux/sunrpc/auth.h
*
@@ -9,8 +10,6 @@
#ifndef _LINUX_SUNRPC_AUTH_H
#define _LINUX_SUNRPC_AUTH_H
-#ifdef __KERNEL__
-
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/xdr.h>
@@ -18,19 +17,27 @@
#include <linux/atomic.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
+#include <linux/utsname.h>
+
+/*
+ * Maximum size of AUTH_NONE authentication information, in XDR words.
+ */
+#define NUL_CALLSLACK (4)
+#define NUL_REPLYSLACK (2)
-/* size of the nodename buffer */
-#define UNX_MAXNODENAME 32
+/*
+ * Size of the nodename buffer. RFC1831 specifies a hard limit of 255 bytes,
+ * but Linux hostnames are actually limited to __NEW_UTS_LEN bytes.
+ */
+#define UNX_MAXNODENAME __NEW_UTS_LEN
+#define UNX_CALLSLACK (21 + XDR_QUADLEN(UNX_MAXNODENAME))
+#define UNX_NGROUPS 16
struct rpcsec_gss_info;
-/* Work around the lack of a VFS credential */
struct auth_cred {
- kuid_t uid;
- kgid_t gid;
- struct group_info *group_info;
- const char *principal;
- unsigned char machine_cred : 1;
+ const struct cred *cred;
+ const char *principal; /* If present, this is a machine credential */
};
/*
@@ -44,14 +51,10 @@ struct rpc_cred {
struct rcu_head cr_rcu;
struct rpc_auth * cr_auth;
const struct rpc_credops *cr_ops;
-#ifdef RPC_DEBUG
- unsigned long cr_magic; /* 0x0f4aa4f0 */
-#endif
unsigned long cr_expire; /* when to gc */
unsigned long cr_flags; /* various flags */
- atomic_t cr_count; /* ref count */
-
- kuid_t cr_uid;
+ refcount_t cr_count; /* ref count */
+ const struct cred *cr_cred;
/* per-flavor data */
};
@@ -60,7 +63,7 @@ struct rpc_cred {
#define RPCAUTH_CRED_HASHED 2
#define RPCAUTH_CRED_NEGATIVE 3
-#define RPCAUTH_CRED_MAGIC 0x0f4aa4f0
+const struct cred *rpc_machine_cred(void);
/*
* Client authentication handle
@@ -69,26 +72,34 @@ struct rpc_cred_cache;
struct rpc_authops;
struct rpc_auth {
unsigned int au_cslack; /* call cred size estimate */
- /* guess at number of u32's auth adds before
- * reply data; normally the verifier size: */
- unsigned int au_rslack;
- /* for gss, used to calculate au_rslack: */
- unsigned int au_verfsize;
-
- unsigned int au_flags; /* various flags */
- const struct rpc_authops *au_ops; /* operations */
+ unsigned int au_rslack; /* reply cred size estimate */
+ unsigned int au_verfsize; /* size of reply verifier */
+ unsigned int au_ralign; /* words before UL header */
+
+ unsigned long au_flags;
+ const struct rpc_authops *au_ops;
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 */
+ refcount_t au_count; /* Reference counter */
struct rpc_cred_cache * au_credcache;
/* per-flavor data */
};
+/* rpc_auth au_flags */
+#define RPCAUTH_AUTH_DATATOUCH (1)
+#define RPCAUTH_AUTH_UPDATE_SLACK (2)
+
+struct rpc_auth_create_args {
+ rpc_authflavor_t pseudoflavor;
+ const char *target_name;
+};
+
/* Flags for rpcauth_lookupcred() */
#define RPCAUTH_LOOKUP_NEW 0x01 /* Accept an uninitialised cred */
+#define RPCAUTH_LOOKUP_ASYNC 0x02 /* Don't block waiting for memory */
/*
* Client authentication ops
@@ -97,17 +108,19 @@ struct rpc_authops {
struct module *owner;
rpc_authflavor_t au_flavor; /* flavor (RPC_AUTH_*) */
char * au_name;
- struct rpc_auth * (*create)(struct rpc_clnt *, rpc_authflavor_t);
+ struct rpc_auth * (*create)(const struct rpc_auth_create_args *,
+ struct rpc_clnt *);
void (*destroy)(struct rpc_auth *);
+ int (*hash_cred)(struct auth_cred *, unsigned int);
struct rpc_cred * (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
- struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int);
- int (*pipes_create)(struct rpc_auth *);
- void (*pipes_destroy)(struct rpc_auth *);
- int (*list_pseudoflavors)(rpc_authflavor_t *, int);
+ struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
rpc_authflavor_t (*info2flavor)(struct rpcsec_gss_info *);
int (*flavor2info)(rpc_authflavor_t,
struct rpcsec_gss_info *);
+ int (*key_timeout)(struct rpc_auth *,
+ struct rpc_cred *);
+ int (*ping)(struct rpc_clnt *clnt);
};
struct rpc_credops {
@@ -116,59 +129,69 @@ struct rpc_credops {
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
- struct rpc_cred * (*crbind)(struct rpc_task *, struct rpc_cred *, int);
- __be32 * (*crmarshal)(struct rpc_task *, __be32 *);
+ int (*crmarshal)(struct rpc_task *task,
+ struct xdr_stream *xdr);
int (*crrefresh)(struct rpc_task *);
- __be32 * (*crvalidate)(struct rpc_task *, __be32 *);
- int (*crwrap_req)(struct rpc_task *, kxdreproc_t,
- void *, __be32 *, void *);
- int (*crunwrap_resp)(struct rpc_task *, kxdrdproc_t,
- void *, __be32 *, void *);
+ int (*crvalidate)(struct rpc_task *task,
+ struct xdr_stream *xdr);
+ int (*crwrap_req)(struct rpc_task *task,
+ struct xdr_stream *xdr);
+ int (*crunwrap_resp)(struct rpc_task *task,
+ struct xdr_stream *xdr);
+ int (*crkey_timeout)(struct rpc_cred *);
+ char * (*crstringify_acceptor)(struct rpc_cred *);
+ bool (*crneed_reencode)(struct rpc_task *);
};
extern const struct rpc_authops authunix_ops;
extern const struct rpc_authops authnull_ops;
+extern const struct rpc_authops authtls_ops;
int __init rpc_init_authunix(void);
-int __init rpc_init_generic_auth(void);
int __init rpcauth_init_module(void);
void rpcauth_remove_module(void);
-void rpc_destroy_generic_auth(void);
void rpc_destroy_authunix(void);
-struct rpc_cred * rpc_lookup_cred(void);
-struct rpc_cred * rpc_lookup_machine_cred(const char *service_name);
int rpcauth_register(const struct rpc_authops *);
int rpcauth_unregister(const struct rpc_authops *);
-struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
+struct rpc_auth * rpcauth_create(const struct rpc_auth_create_args *,
+ struct rpc_clnt *);
void rpcauth_release(struct rpc_auth *);
rpc_authflavor_t rpcauth_get_pseudoflavor(rpc_authflavor_t,
struct rpcsec_gss_info *);
int rpcauth_get_gssinfo(rpc_authflavor_t,
struct rpcsec_gss_info *);
-int rpcauth_list_flavors(rpc_authflavor_t *, int);
-struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
+struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int, gfp_t);
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
-struct rpc_cred * rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
void put_rpccred(struct rpc_cred *);
-__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
-__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
-int rpcauth_wrap_req(struct rpc_task *task, kxdreproc_t encode, void *rqstp, __be32 *data, void *obj);
-int rpcauth_unwrap_resp(struct rpc_task *task, kxdrdproc_t decode, void *rqstp, __be32 *data, void *obj);
+int rpcauth_marshcred(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_checkverf(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_wrap_req_encode(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_wrap_req(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_unwrap_resp_decode(struct rpc_task *task,
+ struct xdr_stream *xdr);
+int rpcauth_unwrap_resp(struct rpc_task *task,
+ struct xdr_stream *xdr);
+bool rpcauth_xmit_need_reencode(struct rpc_task *task);
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 *);
void rpcauth_destroy_credcache(struct rpc_auth *);
void rpcauth_clear_credcache(struct rpc_cred_cache *);
+char * rpcauth_stringify_acceptor(struct rpc_cred *);
static inline
-struct rpc_cred * get_rpccred(struct rpc_cred *cred)
+struct rpc_cred *get_rpccred(struct rpc_cred *cred)
{
- atomic_inc(&cred->cr_count);
- return cred;
+ if (cred != NULL && refcount_inc_not_zero(&cred->cr_count))
+ return cred;
+ return NULL;
}
-#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_AUTH_H */
generated by cgit (git 2.34.1) at 2025-12-21 23:55:29 +0000