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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165/* SPDX-License-Identifier: GPL-2.0 *//* * linux/include/linux/sunrpc/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 */
#ifndef _LINUX_SUNRPC_GSS_API_H#define _LINUX_SUNRPC_GSS_API_H
#include <linux/sunrpc/xdr.h>#include <linux/sunrpc/msg_prot.h>#include <linux/uio.h>
/* The mechanism-independent gss-api context: */struct gss_ctx { struct gss_api_mech *mech_type; void *internal_ctx_id; unsigned int slack, align;};
#define GSS_C_NO_BUFFER ((struct xdr_netobj) 0)#define GSS_C_NO_CONTEXT ((struct gss_ctx *) 0)#define GSS_C_QOP_DEFAULT (0)
/*XXX arbitrary length - is this set somewhere? */#define GSS_OID_MAX_LEN 32struct rpcsec_gss_oid { unsigned int len; u8 data[GSS_OID_MAX_LEN];};
/* From RFC 3530 */struct rpcsec_gss_info { struct rpcsec_gss_oid oid; u32 qop; u32 service;};
/* 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, time64_t *endtime, gfp_t gfp_mask);u32 gss_get_mic( struct gss_ctx *ctx_id, 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 gss_wrap( struct gss_ctx *ctx_id, int offset, struct xdr_buf *outbuf, struct page **inpages);u32 gss_unwrap( struct gss_ctx *ctx_id, int offset, int len, struct xdr_buf *inbuf);u32 gss_delete_sec_context( struct gss_ctx **ctx_id);
rpc_authflavor_t gss_svc_to_pseudoflavor(struct gss_api_mech *, u32 qop, u32 service);u32 gss_pseudoflavor_to_service(struct gss_api_mech *, u32 pseudoflavor);bool gss_pseudoflavor_to_datatouch(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; struct auth_domain *domain; bool datatouch;};
/* 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 rpcsec_gss_oid gm_oid; char *gm_name; const struct gss_api_ops *gm_ops; /* pseudoflavors supported by this mechanism: */ int gm_pf_num; struct pf_desc * gm_pfs; /* Should the following be a callback operation instead? */ const char *gm_upcall_enctypes;};
/* 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, time64_t *endtime, gfp_t gfp_mask); u32 (*gss_get_mic)( struct gss_ctx *ctx_id, 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 (*gss_wrap)( struct gss_ctx *ctx_id, int offset, struct xdr_buf *outbuf, struct page **inpages); u32 (*gss_unwrap)( struct gss_ctx *ctx_id, int offset, int len, struct xdr_buf *buf); 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 rpcsec_gss_oid *);
/* Given a GSS security tuple, look up a pseudoflavor */rpc_authflavor_t gss_mech_info2flavor(struct rpcsec_gss_info *);
/* Given a pseudoflavor, look up a GSS security tuple */int gss_mech_flavor2info(rpc_authflavor_t, struct rpcsec_gss_info *);
/* 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);
struct gss_api_mech * gss_mech_get(struct gss_api_mech *);
/* For every successful 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 /* _LINUX_SUNRPC_GSS_API_H */