1 .\" Copyright (c) 2008 Isilon Inc http://www.isilon.com/
2 .\" Authors: Doug Rabson <dfr@rabson.org>
3 .\" Developed with Red Inc: Alfred Perlstein <alfred@FreeBSD.org>
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26 .Dt RPC_GSS_SET_CALLBACK 3
29 .Nm rpc_gss_set_callback
30 .Nd "Register a security context creation callback"
37 .Fa "struct svc_req *req"
38 .Fa "gss_cred_id_t deleg"
39 .Fa "gss_ctx_id_t gss_context"
40 .Fa "rpc_gss_lock_t *lock"
44 .Fn rpc_gss_set_callback "rpc_gss_callback_t *cb"
46 Register a function which will be called when new security contexts
47 are created on a server.
48 This function will be called on the first RPC request which uses that
49 context and has the opportunity of rejecting the request (for instance
50 after matching the request credentials to an access control list).
51 To accept the new security context, the callback should return
55 If the callback accepts a context, it becomes responsible for the
56 lifetime of the delegated client credentials (if any).
58 It is also possible to 'lock' the values of service and quality of
59 protection used by the context.
60 If a context is locked, any subsequent requests which use different
61 values for service and quality of protection will be rejected.
63 .Bl -tag -width ".It gss_context"
65 A structure containing the RPC program and version for this callback
66 and a function which will be called when new contexts are created for
67 the given RPC program and version
69 The RPC request using the new context
71 GSS-API delegated credentials (if any)
75 A structure used to enforce a particular QOP and service.
80 to lock the service and QOP values
82 The callback function may set
84 to any pointer sized value.
85 This value can be accessed during the lifetime of the context via
91 if the callback was registered successfully or
97 .Xr rpc_gss_getcred 3 ,
102 function first appeared in
106 manual page was written by
107 .An Doug Rabson Aq Mt dfr@FreeBSD.org .
109 There is no mechanism for informing a server when a security context
111 This makes it difficult to allocate resources (e.g. to return via the