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author | stas <stas@FreeBSD.org> | 2012-03-22 08:48:42 +0000 |
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committer | stas <stas@FreeBSD.org> | 2012-03-22 08:48:42 +0000 |
commit | e7e0b349883e80d63c4e856f16351aaa6607766d (patch) | |
tree | 5518cb944fa25f627a797b58451ccf506b720fcf /crypto/heimdal/lib/gssapi/ntlm/crypto.c | |
parent | e02fd6b8423e63f1fdbfc1f984d7c7291a1bacd1 (diff) | |
parent | 2db247d3fc10ef5304f61dbd66448efff8cc6684 (diff) | |
download | FreeBSD-src-e7e0b349883e80d63c4e856f16351aaa6607766d.zip FreeBSD-src-e7e0b349883e80d63c4e856f16351aaa6607766d.tar.gz |
- Update FreeBSD Heimdal distribution to version 1.5.1. This also brings
several new kerberos related libraries and applications to FreeBSD:
o kgetcred(1) allows one to manually get a ticket for a particular service.
o kf(1) securily forwards ticket to another host through an authenticated
and encrypted stream.
o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
and other user kerberos operations. klist and kswitch are just symlinks
to kcc(1) now.
o kswitch(1) allows you to easily switch between kerberos credentials if
you're running KCM.
o hxtool(1) is a certificate management tool to use with PKINIT.
o string2key(1) maps a password into key.
o kdigest(8) is a userland tool to access the KDC's digest interface.
o kimpersonate(8) creates a "fake" ticket for a service.
We also now install manpages for some lirbaries that were not installed
before, libheimntlm and libhx509.
- The new HEIMDAL version no longer supports Kerberos 4. All users are
recommended to switch to Kerberos 5.
- Weak ciphers are now disabled by default. To enable DES support (used
by telnet(8)), use "allow_weak_crypto" option in krb5.conf.
- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
disabled due to the function they use (krb5_get_err_text(3)) being
deprecated. I plan to work on this next.
- Heimdal's KDC now require sqlite to operate. We use the bundled version
and install it as libheimsqlite. If some other FreeBSD components will
require it in the future we can rename it to libbsdsqlite and use for these
components as well.
- This is not a latest Heimdal version, the new one was released while I was
working on the update. I will update it to 1.5.2 soon, as it fixes some
important bugs and security issues.
Diffstat (limited to 'crypto/heimdal/lib/gssapi/ntlm/crypto.c')
-rw-r--r-- | crypto/heimdal/lib/gssapi/ntlm/crypto.c | 135 |
1 files changed, 65 insertions, 70 deletions
diff --git a/crypto/heimdal/lib/gssapi/ntlm/crypto.c b/crypto/heimdal/lib/gssapi/ntlm/crypto.c index b05246c..85dc638 100644 --- a/crypto/heimdal/lib/gssapi/ntlm/crypto.c +++ b/crypto/heimdal/lib/gssapi/ntlm/crypto.c @@ -1,39 +1,37 @@ /* - * Copyright (c) 2006 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. + * Copyright (c) 2006 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: + * 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. + * 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. + * 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. + * 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. + * 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 "ntlm/ntlm.h" - -RCSID("$Id: crypto.c 19535 2006-12-28 14:49:01Z lha $"); +#include "ntlm.h" uint32_t _krb5_crc_update (const char *p, size_t len, uint32_t res); @@ -80,7 +78,7 @@ _gss_ntlm_set_key(struct ntlmv2_key *key, int acceptor, int sealsign, unsigned char *data, size_t len) { unsigned char out[16]; - MD5_CTX ctx; + EVP_MD_CTX *ctx; const char *signmagic; const char *sealmagic; @@ -94,15 +92,17 @@ _gss_ntlm_set_key(struct ntlmv2_key *key, int acceptor, int sealsign, key->seq = 0; - MD5_Init(&ctx); - MD5_Update(&ctx, data, len); - MD5_Update(&ctx, signmagic, strlen(signmagic) + 1); - MD5_Final(key->signkey, &ctx); + ctx = EVP_MD_CTX_create(); + EVP_DigestInit_ex(ctx, EVP_md5(), NULL); + EVP_DigestUpdate(ctx, data, len); + EVP_DigestUpdate(ctx, signmagic, strlen(signmagic) + 1); + EVP_DigestFinal_ex(ctx, key->signkey, NULL); - MD5_Init(&ctx); - MD5_Update(&ctx, data, len); - MD5_Update(&ctx, sealmagic, strlen(sealmagic) + 1); - MD5_Final(out, &ctx); + EVP_DigestInit_ex(ctx, EVP_md5(), NULL); + EVP_DigestUpdate(ctx, data, len); + EVP_DigestUpdate(ctx, sealmagic, strlen(sealmagic) + 1); + EVP_DigestFinal_ex(ctx, out, NULL); + EVP_MD_CTX_destroy(ctx); RC4_set_key(&key->sealkey, 16, out); if (sealsign) @@ -121,20 +121,20 @@ v1_sign_message(gss_buffer_t in, { unsigned char sigature[12]; uint32_t crc; - + _krb5_crc_init_table(); crc = _krb5_crc_update(in->value, in->length, 0); - + encode_le_uint32(0, &sigature[0]); encode_le_uint32(crc, &sigature[4]); encode_le_uint32(seq, &sigature[8]); - + encode_le_uint32(1, out); /* version */ RC4(signkey, sizeof(sigature), sigature, out + 4); - + if (RAND_bytes(out + 4, 4) != 1) return GSS_S_UNAVAILABLE; - + return 0; } @@ -152,7 +152,7 @@ v2_sign_message(gss_buffer_t in, HMAC_CTX_init(&c); HMAC_Init_ex(&c, signkey, 16, EVP_md5(), NULL); - + encode_le_uint32(seq, hmac); HMAC_Update(&c, hmac, 4); HMAC_Update(&c, in->value, in->length); @@ -188,7 +188,7 @@ v2_verify_message(gss_buffer_t in, return GSS_S_BAD_MIC; return GSS_S_COMPLETE; -} +} static OM_uint32 v2_seal_message(const gss_buffer_t in, @@ -259,8 +259,9 @@ v2_unseal_message(gss_buffer_t in, /* * */ - -OM_uint32 _gss_ntlm_get_mic + +OM_uint32 GSSAPI_CALLCONV +_gss_ntlm_get_mic (OM_uint32 * minor_status, const gss_ctx_id_t context_handle, gss_qop_t qop_req, @@ -271,12 +272,7 @@ OM_uint32 _gss_ntlm_get_mic ntlm_ctx ctx = (ntlm_ctx)context_handle; OM_uint32 junk; - if (minor_status) - *minor_status = 0; - if (message_token) { - message_token->length = 0; - message_token->value = NULL; - } + *minor_status = 0; message_token->value = malloc(16); message_token->length = 16; @@ -339,7 +335,7 @@ OM_uint32 _gss_ntlm_get_mic * */ -OM_uint32 +OM_uint32 GSSAPI_CALLCONV _gss_ntlm_verify_mic (OM_uint32 * minor_status, const gss_ctx_id_t context_handle, @@ -388,7 +384,7 @@ _gss_ntlm_verify_mic ((unsigned char *)token_buffer->value) + 4, sigature); _krb5_crc_init_table(); - crc = _krb5_crc_update(message_buffer->value, + crc = _krb5_crc_update(message_buffer->value, message_buffer->length, 0); /* skip first 4 bytes in the encrypted checksum */ decode_le_uint32(&sigature[4], &num); @@ -425,7 +421,7 @@ _gss_ntlm_verify_mic * */ -OM_uint32 +OM_uint32 GSSAPI_CALLCONV _gss_ntlm_wrap_size_limit ( OM_uint32 * minor_status, const gss_ctx_id_t context_handle, @@ -456,7 +452,8 @@ _gss_ntlm_wrap_size_limit ( * */ -OM_uint32 _gss_ntlm_wrap +OM_uint32 GSSAPI_CALLCONV +_gss_ntlm_wrap (OM_uint32 * minor_status, const gss_ctx_id_t context_handle, int conf_req_flag, @@ -469,14 +466,13 @@ OM_uint32 _gss_ntlm_wrap ntlm_ctx ctx = (ntlm_ctx)context_handle; OM_uint32 ret; - if (minor_status) - *minor_status = 0; + *minor_status = 0; if (conf_state) *conf_state = 0; if (output_message_buffer == GSS_C_NO_BUFFER) return GSS_S_FAILURE; - + if (CTX_FLAGS_ISSET(ctx, NTLM_NEG_SEAL|NTLM_NEG_NTLM2_SESSION)) { return v2_seal_message(input_message_buffer, @@ -499,7 +495,7 @@ OM_uint32 _gss_ntlm_wrap RC4(&ctx->u.v1.crypto_send.key, input_message_buffer->length, input_message_buffer->value, output_message_buffer->value); - + ret = _gss_ntlm_get_mic(minor_status, context_handle, 0, input_message_buffer, &trailer); @@ -512,7 +508,7 @@ OM_uint32 _gss_ntlm_wrap gss_release_buffer(&junk, &trailer); return GSS_S_FAILURE; } - memcpy(((unsigned char *)output_message_buffer->value) + + memcpy(((unsigned char *)output_message_buffer->value) + input_message_buffer->length, trailer.value, trailer.length); gss_release_buffer(&junk, &trailer); @@ -527,7 +523,8 @@ OM_uint32 _gss_ntlm_wrap * */ -OM_uint32 _gss_ntlm_unwrap +OM_uint32 GSSAPI_CALLCONV +_gss_ntlm_unwrap (OM_uint32 * minor_status, const gss_ctx_id_t context_handle, const gss_buffer_t input_message_buffer, @@ -539,12 +536,10 @@ OM_uint32 _gss_ntlm_unwrap ntlm_ctx ctx = (ntlm_ctx)context_handle; OM_uint32 ret; - if (minor_status) - *minor_status = 0; - if (output_message_buffer) { - output_message_buffer->value = NULL; - output_message_buffer->length = 0; - } + *minor_status = 0; + output_message_buffer->value = NULL; + output_message_buffer->length = 0; + if (conf_state) *conf_state = 0; if (qop_state) @@ -572,10 +567,10 @@ OM_uint32 _gss_ntlm_unwrap output_message_buffer->length = 0; return GSS_S_FAILURE; } - + RC4(&ctx->u.v1.crypto_recv.key, output_message_buffer->length, input_message_buffer->value, output_message_buffer->value); - + trailer.value = ((unsigned char *)input_message_buffer->value) + output_message_buffer->length; trailer.length = 16; |