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Diffstat (limited to 'source4/web_server/tlscert.c')
| -rw-r--r-- | source4/web_server/tlscert.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/source4/web_server/tlscert.c b/source4/web_server/tlscert.c new file mode 100644 index 0000000000..81b2a0ab45 --- /dev/null +++ b/source4/web_server/tlscert.c @@ -0,0 +1,149 @@ +/* + 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 |