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diff --git a/third_party/heimdal/lib/gssapi/krb5/external.c b/third_party/heimdal/lib/gssapi/krb5/external.c
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+/*
+ * Copyright (c) 1997 - 2018 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "gsskrb5_locl.h"
+#include <gssapi_mech.h>
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
+ * "\x01\x02\x01\x01"},
+ * corresponding to an object-identifier value of
+ * {iso(1) member-body(2) United States(840) mit(113554)
+ * infosys(1) gssapi(2) generic(1) user_name(1)}. The constant
+ * GSS_C_NT_USER_NAME should be initialized to point
+ * to that gss_OID_desc.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_user_name_oid_desc =
+ {10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x01")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
+ * "\x01\x02\x01\x02"},
+ * corresponding to an object-identifier value of
+ * {iso(1) member-body(2) United States(840) mit(113554)
+ * infosys(1) gssapi(2) generic(1) machine_uid_name(2)}.
+ * The constant GSS_C_NT_MACHINE_UID_NAME should be
+ * initialized to point to that gss_OID_desc.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_machine_uid_name_oid_desc =
+ {10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x02")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
+ * "\x01\x02\x01\x03"},
+ * corresponding to an object-identifier value of
+ * {iso(1) member-body(2) United States(840) mit(113554)
+ * infosys(1) gssapi(2) generic(1) string_uid_name(3)}.
+ * The constant GSS_C_NT_STRING_UID_NAME should be
+ * initialized to point to that gss_OID_desc.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_string_uid_name_oid_desc =
+ {10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x03")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {6, (void *)"\x2b\x06\x01\x05\x06\x02"},
+ * corresponding to an object-identifier value of
+ * {iso(1) org(3) dod(6) internet(1) security(5)
+ * nametypes(6) gss-host-based-services(2)). The constant
+ * GSS_C_NT_HOSTBASED_SERVICE_X should be initialized to point
+ * to that gss_OID_desc. This is a deprecated OID value, and
+ * implementations wishing to support hostbased-service names
+ * should instead use the GSS_C_NT_HOSTBASED_SERVICE OID,
+ * defined below, to identify such names;
+ * GSS_C_NT_HOSTBASED_SERVICE_X should be accepted a synonym
+ * for GSS_C_NT_HOSTBASED_SERVICE when presented as an input
+ * parameter, but should not be emitted by GSS-API
+ * implementations
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_hostbased_service_x_oid_desc =
+ {6, rk_UNCONST("\x2b\x06\x01\x05\x06\x02")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {10, (void *)"\x2a\x86\x48\x86\xf7\x12"
+ * "\x01\x02\x01\x04"}, corresponding to an
+ * object-identifier value of {iso(1) member-body(2)
+ * Unites States(840) mit(113554) infosys(1) gssapi(2)
+ * generic(1) service_name(4)}. The constant
+ * GSS_C_NT_HOSTBASED_SERVICE should be initialized
+ * to point to that gss_OID_desc.
+ */
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_hostbased_service_oid_desc =
+ {10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12" "\x01\x02\x01\x04")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {6, (void *)"\x2b\x06\01\x05\x06\x03"},
+ * corresponding to an object identifier value of
+ * {1(iso), 3(org), 6(dod), 1(internet), 5(security),
+ * 6(nametypes), 3(gss-anonymous-name)}. The constant
+ * and GSS_C_NT_ANONYMOUS should be initialized to point
+ * to that gss_OID_desc.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_anonymous_oid_desc =
+ {6, rk_UNCONST("\x2b\x06\01\x05\x06\x03")};
+
+/*
+ * The implementation must reserve static storage for a
+ * gss_OID_desc object containing the value
+ * {6, (void *)"\x2b\x06\x01\x05\x06\x04"},
+ * corresponding to an object-identifier value of
+ * {1(iso), 3(org), 6(dod), 1(internet), 5(security),
+ * 6(nametypes), 4(gss-api-exported-name)}. The constant
+ * GSS_C_NT_EXPORT_NAME should be initialized to point
+ * to that gss_OID_desc.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_export_name_oid_desc =
+ {6, rk_UNCONST("\x2b\x06\x01\x05\x06\x04") };
+
+/*
+ * This name form shall be represented by the Object Identifier {iso(1)
+ * member-body(2) United States(840) mit(113554) infosys(1) gssapi(2)
+ * krb5(2) krb5_name(1)}. The recommended symbolic name for this type
+ * is "GSS_KRB5_NT_PRINCIPAL_NAME".
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_krb5_nt_principal_name_oid_desc =
+ {10, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x01") };
+
+/*
+ * GSS_C_NT_COMPOSITE_EXPORT [RFC6680], OID {iso(1) identified-organization(3)
+ * dod(6) internet(1) security(5) nametypes(6) gss-composite-export(6)}.
+ */
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_c_nt_composite_export_oid_desc =
+ {6, rk_UNCONST("\x2b\x06\x01\x05\x06\x06")};
+
+/*
+ * draft-ietf-cat-iakerb-09, IAKERB:
+ * The mechanism ID for IAKERB proxy GSS-API Kerberos, in accordance
+ * with the mechanism proposed by SPNEGO [7] for negotiating protocol
+ * variations, is: {iso(1) org(3) dod(6) internet(1) security(5)
+ * mechanisms(5) iakerb(10) iakerbProxyProtocol(1)}. The proposed
+ * mechanism ID for IAKERB minimum messages GSS-API Kerberos, in
+ * accordance with the mechanism proposed by SPNEGO for negotiating
+ * protocol variations, is: {iso(1) org(3) dod(6) internet(1)
+ * security(5) mechanisms(5) iakerb(10)
+ * iakerbMinimumMessagesProtocol(2)}.
+ */
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_iakerb_proxy_mechanism_oid_desc =
+ {7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x01")};
+
+gss_OID_desc GSSAPI_LIB_VARIABLE __gss_iakerb_min_msg_mechanism_oid_desc =
+ {7, rk_UNCONST("\x2b\x06\x01\x05\x05\x0a\x02") };
+
+/*
+ * Context for krb5 calls.
+ */
+
+static gss_mo_desc krb5_mo[] = {
+ {
+ GSS_C_MA_SASL_MECH_NAME,
+ GSS_MO_MA,
+ "SASL mech name",
+ rk_UNCONST("GS2-KRB5"),
+ _gss_mo_get_ctx_as_string,
+ NULL
+ },
+ {
+ GSS_C_MA_MECH_NAME,
+ GSS_MO_MA,
+ "Mechanism name",
+ rk_UNCONST("KRB5"),
+ _gss_mo_get_ctx_as_string,
+ NULL
+ },
+ {
+ GSS_C_MA_MECH_DESCRIPTION,
+ GSS_MO_MA,
+ "Mechanism description",
+ rk_UNCONST("Heimdal Kerberos 5 mech"),
+ _gss_mo_get_ctx_as_string,
+ NULL
+ },
+ {
+ GSS_C_MA_MECH_CONCRETE,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_ITOK_FRAMED,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_AUTH_INIT,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_AUTH_TARG,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_DELEG_CRED,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_INTEG_PROT,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_CONF_PROT,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_MIC,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_WRAP,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_PROT_READY,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_REPLAY_DET,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_OOS_DET,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_CBINDINGS,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_PFS,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ GSS_C_MA_CTX_TRANS,
+ GSS_MO_MA,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ }
+};
+
+/*
+ *
+ */
+
+static gssapi_mech_interface_desc krb5_mech = {
+ GMI_VERSION,
+ "krb5",
+ {9, rk_UNCONST("\x2a\x86\x48\x86\xf7\x12\x01\x02\x02") },
+ 0,
+ NULL, /* gm_acquire_cred */
+ _gsskrb5_release_cred,
+ _gsskrb5_init_sec_context,
+ _gsskrb5_accept_sec_context,
+ _gsskrb5_process_context_token,
+ _gsskrb5_delete_sec_context,
+ _gsskrb5_context_time,
+ _gsskrb5_get_mic,
+ _gsskrb5_verify_mic,
+ _gsskrb5_wrap,
+ _gsskrb5_unwrap,
+ _gsskrb5_display_status,
+ _gsskrb5_indicate_mechs,
+ _gsskrb5_compare_name,
+ _gsskrb5_display_name,
+ _gsskrb5_import_name,
+ _gsskrb5_export_name,
+ _gsskrb5_release_name,
+ _gsskrb5_inquire_cred,
+ _gsskrb5_inquire_context,
+ _gsskrb5_wrap_size_limit,
+ NULL, /* gm_add_cred */
+ _gsskrb5_inquire_cred_by_mech,
+ _gsskrb5_export_sec_context,
+ _gsskrb5_import_sec_context,
+ _gsskrb5_inquire_names_for_mech,
+ _gsskrb5_inquire_mechs_for_name,
+ _gsskrb5_canonicalize_name,
+ _gsskrb5_duplicate_name,
+ _gsskrb5_inquire_sec_context_by_oid,
+ _gsskrb5_inquire_cred_by_oid,
+ _gsskrb5_set_sec_context_option,
+ _gsskrb5_set_cred_option,
+ _gsskrb5_pseudo_random,
+ _gk_wrap_iov,
+ _gk_unwrap_iov,
+ _gk_wrap_iov_length,
+ NULL, /* gm_store_cred */
+ _gsskrb5_export_cred,
+ _gsskrb5_import_cred,
+ _gsskrb5_acquire_cred_from,
+ NULL, /* gm_acquire_cred_impersonate_name */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ krb5_mo,
+ sizeof(krb5_mo) / sizeof(krb5_mo[0]),
+ _gsskrb5_localname,
+ _gsskrb5_authorize_localname,
+ _gsskrb5_display_name_ext,
+ _gsskrb5_inquire_name,
+ _gsskrb5_get_name_attribute,
+ _gsskrb5_set_name_attribute,
+ _gsskrb5_delete_name_attribute,
+ _gsskrb5_export_name_composite,
+ _gsskrb5_duplicate_cred,
+ _gsskrb5_add_cred_from,
+ _gsskrb5_store_cred_into,
+ NULL, /* gm_query_mechanism_info */
+ NULL, /* gm_query_meta_data */
+ NULL, /* gm_exchange_meta_data */
+ _gsskrb5_store_cred_into2,
+ NULL /* gm_compat */
+};
+
+gssapi_mech_interface
+__gss_krb5_initialize(void)
+{
+ return &krb5_mech;
+}
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