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-rw-r--r--source4/web_server/tlscert.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/source4/web_server/tlscert.c b/source4/web_server/tlscert.c
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+++ b/source4/web_server/tlscert.c
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+/*
+ Unix SMB/CIFS implementation.
+
+ auto-generate self signed TLS certificates
+
+ Copyright (C) Andrew Tridgell 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#if HAVE_LIBGNUTLS
+#include "gnutls/gnutls.h"
+#include "gnutls/x509.h"
+
+#define ORGANISATION_NAME "Samba Web Administration"
+#define UNIT_NAME "SWAT - temporary autogenerated certificate"
+#define COMMON_NAME "Samba SWAT"
+#define LIFETIME 700*24*60*60
+
+/*
+ auto-generate a set of self signed certificates
+*/
+void tls_cert_generate(TALLOC_CTX *mem_ctx,
+ const char *keyfile, const char *certfile,
+ const char *cafile)
+{
+ gnutls_x509_crt cacrt, crt;
+ gnutls_x509_privkey key, cakey;
+ uint32_t serial = (uint32_t)time(NULL);
+ char keyid[100];
+ char buf[4096];
+ size_t bufsize;
+ size_t keyidsize = sizeof(keyid);
+ time_t activation = time(NULL), expiry = activation + LIFETIME;
+ int ret;
+
+ if (file_exist(keyfile) || file_exist(certfile) || file_exist(cafile)) {
+ DEBUG(0,("TLS autogeneration skipped - some TLS files already exist\n"));
+ return;
+ }
+
+#define TLSCHECK(call) do { \
+ ret = call; \
+ if (ret < 0) { \
+ DEBUG(0,("TLS %s - %s\n", #call, gnutls_strerror(ret))); \
+ goto failed; \
+ } \
+} while (0)
+
+ TLSCHECK(gnutls_global_init());
+
+ DEBUG(0,("Attempting to autogenerate TLS self-signed keys for https\n"));
+
+ DEBUG(3,("Generating private key\n"));
+ TLSCHECK(gnutls_x509_privkey_init(&key));
+ TLSCHECK(gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, 1024, 0));
+
+ DEBUG(3,("Generating CA private key\n"));
+ TLSCHECK(gnutls_x509_privkey_init(&cakey));
+ TLSCHECK(gnutls_x509_privkey_generate(cakey, GNUTLS_PK_RSA, 1024, 0));
+
+ DEBUG(3,("Generating CA certificate\n"));
+ TLSCHECK(gnutls_x509_crt_init(&cacrt));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(cacrt,
+ GNUTLS_OID_X520_ORGANIZATION_NAME, 0,
+ ORGANISATION_NAME, strlen(ORGANISATION_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(cacrt,
+ GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, 0,
+ UNIT_NAME, strlen(UNIT_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(cacrt,
+ GNUTLS_OID_X520_COMMON_NAME, 0,
+ COMMON_NAME, strlen(COMMON_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_key(cacrt, cakey));
+ TLSCHECK(gnutls_x509_crt_set_serial(cacrt, &serial, sizeof(serial)));
+ TLSCHECK(gnutls_x509_crt_set_activation_time(cacrt, activation));
+ TLSCHECK(gnutls_x509_crt_set_expiration_time(cacrt, expiry));
+ TLSCHECK(gnutls_x509_crt_set_ca_status(cacrt, 0));
+ TLSCHECK(gnutls_x509_crt_set_key_purpose_oid(cacrt, GNUTLS_KP_TLS_WWW_SERVER, 0));
+ TLSCHECK(gnutls_x509_crt_set_version(cacrt, 3));
+ TLSCHECK(gnutls_x509_crt_get_key_id(cacrt, 0, keyid, &keyidsize));
+ TLSCHECK(gnutls_x509_crt_set_subject_key_id(cacrt, keyid, keyidsize));
+ TLSCHECK(gnutls_x509_crt_sign(cacrt, cacrt, cakey));
+
+ DEBUG(3,("Generating TLS certificate\n"));
+ TLSCHECK(gnutls_x509_crt_init(&crt));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(crt,
+ GNUTLS_OID_X520_ORGANIZATION_NAME, 0,
+ ORGANISATION_NAME, strlen(ORGANISATION_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(crt,
+ GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, 0,
+ UNIT_NAME, strlen(UNIT_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_dn_by_oid(crt,
+ GNUTLS_OID_X520_COMMON_NAME, 0,
+ COMMON_NAME, strlen(COMMON_NAME)));
+ TLSCHECK(gnutls_x509_crt_set_key(crt, key));
+ TLSCHECK(gnutls_x509_crt_set_serial(crt, &serial, sizeof(serial)));
+ TLSCHECK(gnutls_x509_crt_set_activation_time(crt, activation));
+ TLSCHECK(gnutls_x509_crt_set_expiration_time(crt, expiry));
+ TLSCHECK(gnutls_x509_crt_set_ca_status(crt, 0));
+ TLSCHECK(gnutls_x509_crt_set_key_purpose_oid(crt, GNUTLS_KP_TLS_WWW_SERVER, 0));
+ TLSCHECK(gnutls_x509_crt_set_version(crt, 3));
+ TLSCHECK(gnutls_x509_crt_get_key_id(crt, 0, keyid, &keyidsize));
+ TLSCHECK(gnutls_x509_crt_set_subject_key_id(crt, keyid, keyidsize));
+ TLSCHECK(gnutls_x509_crt_sign(crt, crt, key));
+
+ DEBUG(3,("Exporting TLS keys\n"));
+
+ bufsize = sizeof(buf);
+ TLSCHECK(gnutls_x509_crt_export(crt, GNUTLS_X509_FMT_PEM, buf, &bufsize));
+ file_save(certfile, buf, bufsize);
+
+ bufsize = sizeof(buf);
+ TLSCHECK(gnutls_x509_crt_export(cacrt, GNUTLS_X509_FMT_PEM, buf, &bufsize));
+ file_save(cafile, buf, bufsize);
+
+ bufsize = sizeof(buf);
+ TLSCHECK(gnutls_x509_privkey_export(key, GNUTLS_X509_FMT_PEM, buf, &bufsize));
+ file_save(keyfile, buf, bufsize);
+
+ gnutls_x509_privkey_deinit(key);
+ gnutls_x509_privkey_deinit(cakey);
+ gnutls_x509_crt_deinit(cacrt);
+ gnutls_x509_crt_deinit(crt);
+ gnutls_global_deinit();
+
+ DEBUG(0,("TLS self-signed keys generated OK\n"));
+ return;
+
+failed:
+ DEBUG(0,("TLS certificate generation failed\n"));
+}
+
+#else
+ void tls_cert_dummy(void) {}
+#endif