WebSVN - shark - Blame - Rev 1618 - /shark/branches/xen/drivers/linuxc26/include/linux/sunrpc/gss

Rev	Author	Line No.	Line
423	giacomo	1	/*
		2	* linux/include/linux/gss_api.h
		3	*
		4	* Somewhat simplified version of the gss api.
		5	*
		6	* Dug Song <dugsong@monkey.org>
		7	* Andy Adamson <andros@umich.edu>
		8	* Bruce Fields <bfields@umich.edu>
		9	* Copyright (c) 2000 The Regents of the University of Michigan
		10	*
		11	* $Id: gss_api.h,v 1.1 2004-01-28 15:31:11 giacomo Exp $
		12	*/
		13
		14	#ifndef _LINUX_SUNRPC_GSS_API_H
		15	#define _LINUX_SUNRPC_GSS_API_H
		16
		17	#ifdef __KERNEL__
		18	#include <linux/sunrpc/xdr.h>
		19
		20	/* The mechanism-independent gss-api context: */
		21	struct gss_ctx {
		22	struct gss_api_mech *mech_type;
		23	void *internal_ctx_id;
		24	};
		25
		26	#define GSS_C_NO_BUFFER ((struct xdr_netobj) 0)
		27	#define GSS_C_NO_CONTEXT ((struct gss_ctx *) 0)
		28	#define GSS_C_NULL_OID ((struct xdr_netobj) 0)
		29
		30	/XXX arbitrary length - is this set somewhere? /
		31	#define GSS_OID_MAX_LEN 32
		32
		33	/* gss-api prototypes; note that these are somewhat simplified versions of
		34	* the prototypes specified in RFC 2744. */
		35	u32 gss_import_sec_context(
		36	struct xdr_netobj *input_token,
		37	struct gss_api_mech *mech,
		38	struct gss_ctx **ctx_id);
		39	u32 gss_get_mic(
		40	struct gss_ctx *ctx_id,
		41	u32 qop,
		42	struct xdr_netobj *message,
		43	struct xdr_netobj *mic_token);
		44	u32 gss_verify_mic(
		45	struct gss_ctx *ctx_id,
		46	struct xdr_netobj *message,
		47	struct xdr_netobj *mic_token,
		48	u32 *qstate);
		49	u32 gss_delete_sec_context(
		50	struct gss_ctx **ctx_id);
		51
		52	/* We maintain a list of the pseudoflavors (equivalently, mechanism-qop-service
		53	* triples) that we currently support: */
		54
		55	struct sup_sec_triple {
		56	struct list_head triples;
		57	u32 pseudoflavor;
		58	struct gss_api_mech *mech;
		59	u32 qop;
		60	u32 service;
		61	};
		62
		63	int gss_register_triple(u32 pseudoflavor, struct gss_api_mech *mech, u32 qop,
		64	u32 service);
		65	int gss_unregister_triple(u32 pseudoflavor);
		66	int gss_pseudoflavor_supported(u32 pseudoflavor);
		67	u32 gss_cmp_triples(u32 oid_len, char *oid_data, u32 qop, u32 service);
		68	u32 gss_get_pseudoflavor(struct gss_ctx *ctx_id, u32 qop, u32 service);
		69	u32 gss_pseudoflavor_to_service(u32 pseudoflavor);
		70	/* Both return NULL on failure: */
		71	struct gss_api_mech * gss_pseudoflavor_to_mech(u32 pseudoflavor);
		72	int gss_pseudoflavor_to_mechOID(u32 pseudoflavor, struct xdr_netobj *mech);
		73
		74	/* Different mechanisms (e.g., krb5 or spkm3) may implement gss-api, and
		75	* mechanisms may be dynamically registered or unregistered by modules.
		76	* Our only built-in mechanism is a trivial debugging mechanism that provides
		77	* no actual security; the following function registers that mechanism: */
		78
		79	void gss_mech_register_debug(void);
		80
		81	/* Each mechanism is described by the following struct: */
		82	struct gss_api_mech {
		83	struct xdr_netobj gm_oid;
		84	struct list_head gm_list;
		85	atomic_t gm_count;
		86	struct gss_api_ops *gm_ops;
		87	};
		88
		89	/* and must provide the following operations: */
		90	struct gss_api_ops {
		91	char *name;
		92	u32 (*gss_import_sec_context)(
		93	struct xdr_netobj *input_token,
		94	struct gss_ctx *ctx_id);
		95	u32 (*gss_get_mic)(
		96	struct gss_ctx *ctx_id,
		97	u32 qop,
		98	struct xdr_netobj *message,
		99	struct xdr_netobj *mic_token);
		100	u32 (*gss_verify_mic)(
		101	struct gss_ctx *ctx_id,
		102	struct xdr_netobj *message,
		103	struct xdr_netobj *mic_token,
		104	u32 *qstate);
		105	void (*gss_delete_sec_context)(
		106	void *internal_ctx_id);
		107	};
		108
		109	/* Returns nonzero on failure. */
		110	int gss_mech_register(struct xdr_netobj , struct gss_api_ops );
		111
		112	/* Returns nonzero iff someone still has a reference to this mech. */
		113	int gss_mech_unregister(struct gss_api_mech *);
		114
		115	/* Returns nonzer iff someone still has a reference to some mech. */
		116	int gss_mech_unregister_all(void);
		117
		118	/* returns a mechanism descriptor given an OID, an increments the mechanism's
		119	* reference count. */
		120	struct gss_api_mech * gss_mech_get_by_OID(struct xdr_netobj *);
		121
		122	/* Just increments the mechanism's reference count and returns its input: */
		123	struct gss_api_mech * gss_mech_get(struct gss_api_mech *);
		124
		125	/* Returns nonzero iff you've released the last reference to this mech.
		126	* Note that for every succesful gss_get_mech call there must be exactly
		127	* one corresponding call to gss_mech_put.*/
		128	int gss_mech_put(struct gss_api_mech *);
		129
		130	#endif /* __KERNEL__ */
		131	#endif /* _LINUX_SUNRPC_GSS_API_H */
		132

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