2 * linux/include/linux/sunrpc/gss_api.h
4 * Somewhat simplified version of the gss api.
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
12 #ifndef _LINUX_SUNRPC_GSS_API_H
13 #define _LINUX_SUNRPC_GSS_API_H
16 #include <linux/sunrpc/xdr.h>
17 #include <linux/sunrpc/msg_prot.h>
18 #include <linux/uio.h>
20 /* The mechanism-independent gss-api context: */
22 struct gss_api_mech
*mech_type
;
23 void *internal_ctx_id
;
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)
30 /*XXX arbitrary length - is this set somewhere? */
31 #define GSS_OID_MAX_LEN 32
33 /* gss-api prototypes; note that these are somewhat simplified versions of
34 * the prototypes specified in RFC 2744. */
35 int gss_import_sec_context(
36 const void* input_token
,
38 struct gss_api_mech
*mech
,
39 struct gss_ctx
**ctx_id
,
42 struct gss_ctx
*ctx_id
,
43 struct xdr_buf
*message
,
44 struct xdr_netobj
*mic_token
);
46 struct gss_ctx
*ctx_id
,
47 struct xdr_buf
*message
,
48 struct xdr_netobj
*mic_token
);
50 struct gss_ctx
*ctx_id
,
52 struct xdr_buf
*outbuf
,
53 struct page
**inpages
);
55 struct gss_ctx
*ctx_id
,
57 struct xdr_buf
*inbuf
);
58 u32
gss_delete_sec_context(
59 struct gss_ctx
**ctx_id
);
61 u32
gss_svc_to_pseudoflavor(struct gss_api_mech
*, u32 service
);
62 u32
gss_pseudoflavor_to_service(struct gss_api_mech
*, u32 pseudoflavor
);
63 char *gss_service_to_auth_domain_name(struct gss_api_mech
*, u32 service
);
69 char *auth_domain_name
;
72 /* Different mechanisms (e.g., krb5 or spkm3) may implement gss-api, and
73 * mechanisms may be dynamically registered or unregistered by modules. */
75 /* Each mechanism is described by the following struct: */
77 struct list_head gm_list
;
78 struct module
*gm_owner
;
79 struct xdr_netobj gm_oid
;
81 const struct gss_api_ops
*gm_ops
;
82 /* pseudoflavors supported by this mechanism: */
84 struct pf_desc
* gm_pfs
;
85 /* Should the following be a callback operation instead? */
86 const char *gm_upcall_enctypes
;
89 /* and must provide the following operations: */
91 int (*gss_import_sec_context
)(
92 const void *input_token
,
94 struct gss_ctx
*ctx_id
,
97 struct gss_ctx
*ctx_id
,
98 struct xdr_buf
*message
,
99 struct xdr_netobj
*mic_token
);
100 u32 (*gss_verify_mic
)(
101 struct gss_ctx
*ctx_id
,
102 struct xdr_buf
*message
,
103 struct xdr_netobj
*mic_token
);
105 struct gss_ctx
*ctx_id
,
107 struct xdr_buf
*outbuf
,
108 struct page
**inpages
);
110 struct gss_ctx
*ctx_id
,
112 struct xdr_buf
*buf
);
113 void (*gss_delete_sec_context
)(
114 void *internal_ctx_id
);
117 int gss_mech_register(struct gss_api_mech
*);
118 void gss_mech_unregister(struct gss_api_mech
*);
120 /* returns a mechanism descriptor given an OID, and increments the mechanism's
121 * reference count. */
122 struct gss_api_mech
* gss_mech_get_by_OID(struct xdr_netobj
*);
124 /* Returns a reference to a mechanism, given a name like "krb5" etc. */
125 struct gss_api_mech
*gss_mech_get_by_name(const char *);
127 /* Similar, but get by pseudoflavor. */
128 struct gss_api_mech
*gss_mech_get_by_pseudoflavor(u32
);
130 /* Fill in an array with a list of supported pseudoflavors */
131 int gss_mech_list_pseudoflavors(rpc_authflavor_t
*, int);
133 /* Just increments the mechanism's reference count and returns its input: */
134 struct gss_api_mech
* gss_mech_get(struct gss_api_mech
*);
136 /* For every successful gss_mech_get or gss_mech_get_by_* call there must be a
137 * corresponding call to gss_mech_put. */
138 void gss_mech_put(struct gss_api_mech
*);
140 #endif /* __KERNEL__ */
141 #endif /* _LINUX_SUNRPC_GSS_API_H */
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