2 * linux/include/linux/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
14 #ifndef _LINUX_SUNRPC_GSS_API_H
15 #define _LINUX_SUNRPC_GSS_API_H
18 #include <linux/sunrpc/xdr.h>
19 #include <linux/uio.h>
21 /* The mechanism-independent gss-api context: */
23 struct gss_api_mech *mech_type;
24 void *internal_ctx_id;
27 #define GSS_C_NO_BUFFER ((struct xdr_netobj) 0)
28 #define GSS_C_NO_CONTEXT ((struct gss_ctx *) 0)
29 #define GSS_C_NULL_OID ((struct xdr_netobj) 0)
31 /*XXX arbitrary length - is this set somewhere? */
32 #define GSS_OID_MAX_LEN 32
34 /* gss-api prototypes; note that these are somewhat simplified versions of
35 * the prototypes specified in RFC 2744. */
36 int gss_import_sec_context(
37 const void* input_token,
39 struct gss_api_mech *mech,
40 struct gss_ctx **ctx_id);
42 struct gss_ctx *ctx_id,
44 struct xdr_buf *message,
45 struct xdr_netobj *mic_token);
47 struct gss_ctx *ctx_id,
48 struct xdr_buf *message,
49 struct xdr_netobj *mic_token,
52 struct gss_ctx *ctx_id,
55 struct xdr_buf *outbuf,
56 struct page **inpages);
58 struct gss_ctx *ctx_id,
61 struct xdr_buf *inbuf);
62 u32 gss_delete_sec_context(
63 struct gss_ctx **ctx_id);
65 u32 gss_pseudoflavor_to_service(struct gss_api_mech *, u32 pseudoflavor);
66 char *gss_service_to_auth_domain_name(struct gss_api_mech *, u32 service);
73 char *auth_domain_name;
76 /* Different mechanisms (e.g., krb5 or spkm3) may implement gss-api, and
77 * mechanisms may be dynamically registered or unregistered by modules. */
79 /* Each mechanism is described by the following struct: */
81 struct list_head gm_list;
82 struct module *gm_owner;
83 struct xdr_netobj gm_oid;
85 struct gss_api_ops *gm_ops;
86 /* pseudoflavors supported by this mechanism: */
88 struct pf_desc * gm_pfs;
91 /* and must provide the following operations: */
93 int (*gss_import_sec_context)(
94 const void *input_token,
96 struct gss_ctx *ctx_id);
98 struct gss_ctx *ctx_id,
100 struct xdr_buf *message,
101 struct xdr_netobj *mic_token);
102 u32 (*gss_verify_mic)(
103 struct gss_ctx *ctx_id,
104 struct xdr_buf *message,
105 struct xdr_netobj *mic_token,
108 struct gss_ctx *ctx_id,
111 struct xdr_buf *outbuf,
112 struct page **inpages);
114 struct gss_ctx *ctx_id,
117 struct xdr_buf *buf);
118 void (*gss_delete_sec_context)(
119 void *internal_ctx_id);
122 int gss_mech_register(struct gss_api_mech *);
123 void gss_mech_unregister(struct gss_api_mech *);
125 /* returns a mechanism descriptor given an OID, and increments the mechanism's
126 * reference count. */
127 struct gss_api_mech * gss_mech_get_by_OID(struct xdr_netobj *);
129 /* Returns a reference to a mechanism, given a name like "krb5" etc. */
130 struct gss_api_mech *gss_mech_get_by_name(const char *);
132 /* Similar, but get by pseudoflavor. */
133 struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32);
135 /* Just increments the mechanism's reference count and returns its input: */
136 struct gss_api_mech * gss_mech_get(struct gss_api_mech *);
138 /* For every succesful gss_mech_get or gss_mech_get_by_* call there must be a
139 * corresponding call to gss_mech_put. */
140 void gss_mech_put(struct gss_api_mech *);
142 #endif /* __KERNEL__ */
143 #endif /* _LINUX_SUNRPC_GSS_API_H */