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-rw-r--r--third_party/heimdal/kdc/digest-service.c291
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diff --git a/third_party/heimdal/kdc/digest-service.c b/third_party/heimdal/kdc/digest-service.c
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+/*
+ * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2009 Apple Inc. 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.
+ */
+
+#define HC_DEPRECATED_CRYPTO
+
+#include "headers.h"
+#include <digest_asn1.h>
+#include <heimntlm.h>
+#include <heim-ipc.h>
+#include <getarg.h>
+
+typedef struct pk_client_params pk_client_params;
+typedef struct gss_client_params gss_client_params;
+struct DigestREQ;
+struct Kx509Request;
+
+#include <kdc-private.h>
+
+krb5_kdc_configuration *config;
+
+static void
+ntlm_service(void *ctx, const heim_idata *req,
+ const heim_icred cred,
+ heim_ipc_complete complete,
+ heim_sipc_call cctx)
+{
+ NTLMRequest2 ntq;
+ unsigned char sessionkey[16];
+ heim_idata rep = { 0, NULL };
+ krb5_context context = ctx;
+ hdb_entry *user = NULL;
+ HDB *db = NULL;
+ Key *key = NULL;
+ NTLMReply ntp;
+ size_t size;
+ int ret;
+ const char *domain;
+
+ kdc_log(context, config, 4, "digest-request: uid=%d",
+ (int)heim_ipc_cred_get_uid(cred));
+
+ if (heim_ipc_cred_get_uid(cred) != 0) {
+ (*complete)(cctx, EPERM, NULL);
+ return;
+ }
+
+ ntp.success = 0;
+ ntp.flags = 0;
+ ntp.sessionkey = NULL;
+
+ ret = decode_NTLMRequest2(req->data, req->length, &ntq, NULL);
+ if (ret)
+ goto failed;
+
+ /* XXX forward to NetrLogonSamLogonEx() if not a local domain */
+ if (strcmp(ntq.loginDomainName, "BUILTIN") == 0) {
+ domain = ntq.loginDomainName;
+ } else if (strcmp(ntq.loginDomainName, "") == 0) {
+ domain = "BUILTIN";
+ } else {
+ ret = EINVAL;
+ goto failed;
+ }
+
+ kdc_log(context, config, 4, "digest-request: user=%s/%s",
+ ntq.loginUserName, domain);
+
+ if (ntq.lmchallenge.length != 8)
+ goto failed;
+
+ if (ntq.ntChallengeResponce.length == 0)
+ goto failed;
+
+ {
+ krb5_principal client;
+
+ ret = krb5_make_principal(context, &client, domain,
+ ntq.loginUserName, NULL);
+ if (ret)
+ goto failed;
+
+ krb5_principal_set_type(context, client, KRB5_NT_NTLM);
+
+ ret = _kdc_db_fetch(context, config, client,
+ HDB_F_GET_CLIENT, NULL, &db, &user);
+ krb5_free_principal(context, client);
+ if (ret)
+ goto failed;
+
+ ret = hdb_enctype2key(context, user, NULL,
+ ETYPE_ARCFOUR_HMAC_MD5, &key);
+ if (ret) {
+ krb5_set_error_message(context, ret, "NTLM missing arcfour key");
+ goto failed;
+ }
+ }
+
+ kdc_log(context, config, 5,
+ "digest-request: found user, processing ntlm request");
+
+ if (ntq.ntChallengeResponce.length != 24) {
+ struct ntlm_buf infotarget, answer;
+
+ answer.length = ntq.ntChallengeResponce.length;
+ answer.data = ntq.ntChallengeResponce.data;
+
+ ret = heim_ntlm_verify_ntlm2(key->key.keyvalue.data,
+ key->key.keyvalue.length,
+ ntq.loginUserName,
+ ntq.loginDomainName,
+ 0,
+ ntq.lmchallenge.data,
+ &answer,
+ &infotarget,
+ sessionkey);
+ if (ret) {
+ goto failed;
+ }
+
+ free(infotarget.data);
+ /* XXX verify info target */
+
+ } else {
+ struct ntlm_buf answer;
+
+ if (ntq.flags & NTLM_NEG_NTLM2_SESSION) {
+ unsigned char sessionhash[MD5_DIGEST_LENGTH];
+ EVP_MD_CTX *md5ctx;
+
+ /* the first first 8 bytes is the challenge, what is the other 16 bytes ? */
+ if (ntq.lmChallengeResponce.length != 24)
+ goto failed;
+
+ md5ctx = EVP_MD_CTX_create();
+ EVP_DigestInit_ex(md5ctx, EVP_md5(), NULL);
+ EVP_DigestUpdate(md5ctx, ntq.lmchallenge.data, 8);
+ EVP_DigestUpdate(md5ctx, ntq.lmChallengeResponce.data, 8);
+ EVP_DigestFinal_ex(md5ctx, sessionhash, NULL);
+ EVP_MD_CTX_destroy(md5ctx);
+ memcpy(ntq.lmchallenge.data, sessionhash, ntq.lmchallenge.length);
+ }
+
+ ret = heim_ntlm_calculate_ntlm1(key->key.keyvalue.data,
+ key->key.keyvalue.length,
+ ntq.lmchallenge.data, &answer);
+ if (ret)
+ goto failed;
+
+ if (ntq.ntChallengeResponce.length != answer.length ||
+ ct_memcmp(ntq.ntChallengeResponce.data, answer.data, answer.length) != 0) {
+ free(answer.data);
+ ret = EINVAL;
+ goto failed;
+ }
+ free(answer.data);
+
+ {
+ EVP_MD_CTX *ctxp;
+
+ ctxp = EVP_MD_CTX_create();
+ EVP_DigestInit_ex(ctxp, EVP_md4(), NULL);
+ EVP_DigestUpdate(ctxp, key->key.keyvalue.data, key->key.keyvalue.length);
+ EVP_DigestFinal_ex(ctxp, sessionkey, NULL);
+ EVP_MD_CTX_destroy(ctxp);
+ }
+ }
+
+ ntp.success = 1;
+
+ ASN1_MALLOC_ENCODE(NTLMReply, rep.data, rep.length, &ntp, &size, ret);
+ if (ret)
+ goto failed;
+ if (rep.length != size)
+ abort();
+
+ failed:
+ kdc_log(context, config, 4, "digest-request: %d", ret);
+
+ (*complete)(cctx, ret, &rep);
+
+ free(rep.data);
+
+ free_NTLMRequest2(&ntq);
+ if (user)
+ _kdc_free_ent (context, db, user);
+}
+
+static int help_flag;
+static int version_flag;
+
+static struct getargs args[] = {
+ { "help", 'h', arg_flag, &help_flag, NULL, NULL },
+ { "version", 'v', arg_flag, &version_flag, NULL, NULL }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int ret)
+{
+ arg_printusage (args, num_args, NULL, "");
+ exit (ret);
+}
+
+int
+main(int argc, char **argv)
+{
+ krb5_context context;
+ int ret, optidx = 0;
+
+ setprogname(argv[0]);
+
+ if (getarg(args, num_args, argc, argv, &optidx))
+ usage(1);
+
+ if (help_flag)
+ usage(0);
+
+ if (version_flag) {
+ print_version(NULL);
+ exit(0);
+ }
+
+ ret = krb5_init_context(&context);
+ if (ret)
+ krb5_errx(context, 1, "krb5_init_context");
+
+ ret = krb5_kdc_get_config(context, &config);
+ if (ret)
+ krb5_err(context, 1, ret, "krb5_kdc_default_config");
+
+ kdc_openlog(context, "digest-service", config);
+
+ ret = krb5_kdc_set_dbinfo(context, config);
+ if (ret)
+ krb5_err(context, 1, ret, "krb5_kdc_set_dbinfo");
+
+#if __APPLE__
+ {
+ heim_sipc mach;
+ heim_sipc_launchd_mach_init("org.h5l.ntlm-service",
+ ntlm_service, context, &mach);
+ heim_sipc_timeout(60);
+ }
+#endif
+#ifdef HAVE_DOOR_CREATE
+ {
+ heim_sipc door;
+ heim_sipc_service_door("org.h5l.ntlm-service", ntlm_service, NULL, &door);
+ }
+#endif
+ {
+ heim_sipc un;
+ heim_sipc_service_unix("org.h5l.ntlm-service", ntlm_service, NULL, &un);
+ }
+
+ heim_ipc_main();
+ return 0;
+}
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