gss_init_sec_context.c revision 184588
138494Sobrien/*- 238494Sobrien * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 338494Sobrien * Authors: Doug Rabson <dfr@rabson.org> 438494Sobrien * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 5174294Sobrien * 638494Sobrien * Redistribution and use in source and binary forms, with or without 738494Sobrien * modification, are permitted provided that the following conditions 838494Sobrien * are met: 938494Sobrien * 1. Redistributions of source code must retain the above copyright 1038494Sobrien * notice, this list of conditions and the following disclaimer. 1138494Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1238494Sobrien * notice, this list of conditions and the following disclaimer in the 1338494Sobrien * documentation and/or other materials provided with the distribution. 1438494Sobrien * 1538494Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1638494Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1738494Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1838494Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1938494Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2038494Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2138494Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2238494Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2338494Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2438494Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2538494Sobrien * SUCH DAMAGE. 2638494Sobrien */ 2738494Sobrien 2838494Sobrien#include <sys/cdefs.h> 2938494Sobrien__FBSDID("$FreeBSD: head/sys/kgssapi/gss_init_sec_context.c 184588 2008-11-03 10:38:00Z dfr $"); 3038494Sobrien 3138494Sobrien#include <sys/param.h> 3238494Sobrien#include <sys/kernel.h> 3338494Sobrien#include <sys/kobj.h> 3438494Sobrien#include <sys/malloc.h> 3538494Sobrien#include <sys/proc.h> 3638494Sobrien 3738494Sobrien#include <kgssapi/gssapi.h> 3838494Sobrien#include <kgssapi/gssapi_impl.h> 3938494Sobrien#include <rpc/rpc.h> 4038494Sobrien 4138494Sobrien#include "gssd.h" 4238494Sobrien#include "kgss_if.h" 4338494Sobrien 4438494SobrienOM_uint32 4538494Sobriengss_init_sec_context(OM_uint32 * minor_status, 4638494Sobrien const gss_cred_id_t initiator_cred_handle, 4738494Sobrien gss_ctx_id_t * context_handle, 4838494Sobrien const gss_name_t target_name, 4938494Sobrien const gss_OID input_mech_type, 5038494Sobrien OM_uint32 req_flags, 5138494Sobrien OM_uint32 time_req, 52 const gss_channel_bindings_t input_chan_bindings, 53 const gss_buffer_t input_token, 54 gss_OID * actual_mech_type, 55 gss_buffer_t output_token, 56 OM_uint32 * ret_flags, 57 OM_uint32 * time_rec) 58{ 59 struct init_sec_context_res res; 60 struct init_sec_context_args args; 61 enum clnt_stat stat; 62 gss_ctx_id_t ctx = *context_handle; 63 64 *minor_status = 0; 65 66 if (!kgss_gssd_handle) 67 return (GSS_S_FAILURE); 68 69 args.uid = curthread->td_ucred->cr_uid; 70 if (initiator_cred_handle) 71 args.cred = initiator_cred_handle->handle; 72 else 73 args.cred = 0; 74 if (ctx) 75 args.ctx = ctx->handle; 76 else 77 args.ctx = 0; 78 args.name = target_name->handle; 79 args.mech_type = input_mech_type; 80 args.req_flags = req_flags; 81 args.time_req = time_req; 82 args.input_chan_bindings = input_chan_bindings; 83 if (input_token) 84 args.input_token = *input_token; 85 else { 86 args.input_token.length = 0; 87 args.input_token.value = NULL; 88 } 89 90 bzero(&res, sizeof(res)); 91 stat = gssd_init_sec_context_1(&args, &res, kgss_gssd_handle); 92 if (stat != RPC_SUCCESS) { 93 *minor_status = stat; 94 return (GSS_S_FAILURE); 95 } 96 97 if (res.major_status != GSS_S_COMPLETE 98 && res.major_status != GSS_S_CONTINUE_NEEDED) { 99 *minor_status = res.minor_status; 100 xdr_free((xdrproc_t) xdr_init_sec_context_res, &res); 101 return (res.major_status); 102 } 103 104 *minor_status = res.minor_status; 105 106 if (!ctx) { 107 ctx = kgss_create_context(res.actual_mech_type); 108 if (!ctx) { 109 xdr_free((xdrproc_t) xdr_init_sec_context_res, &res); 110 *minor_status = 0; 111 return (GSS_S_BAD_MECH); 112 } 113 } 114 *context_handle = ctx; 115 ctx->handle = res.ctx; 116 if (actual_mech_type) 117 *actual_mech_type = KGSS_MECH_TYPE(ctx); 118 kgss_copy_buffer(&res.output_token, output_token); 119 if (ret_flags) 120 *ret_flags = res.ret_flags; 121 if (time_rec) 122 *time_rec = res.time_rec; 123 124 xdr_free((xdrproc_t) xdr_init_sec_context_res, &res); 125 126 /* 127 * If the context establishment is complete, export it from 128 * userland and hand the result (which includes key material 129 * etc.) to the kernel implementation. 130 */ 131 if (res.major_status == GSS_S_COMPLETE) 132 res.major_status = kgss_transfer_context(ctx); 133 134 return (res.major_status); 135} 136