diff options
Diffstat (limited to 'auth/ntlmssp/gensec_ntlmssp.c')
| -rw-r--r-- | auth/ntlmssp/gensec_ntlmssp.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/auth/ntlmssp/gensec_ntlmssp.c b/auth/ntlmssp/gensec_ntlmssp.c new file mode 100644 index 0000000..329d8eb --- /dev/null +++ b/auth/ntlmssp/gensec_ntlmssp.c @@ -0,0 +1,246 @@ +/* + * Unix SMB/CIFS implementation. + * Version 3.0 + * NTLMSSP Signing routines + * Copyright (C) Luke Kenneth Casson Leighton 1996-2001 + * Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2005 + * + * 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 3 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, see <http://www.gnu.org/licenses/>. + */ + +#include "includes.h" +#include "auth/ntlmssp/ntlmssp.h" +#include "auth/gensec/gensec.h" +#include "auth/gensec/gensec_internal.h" +#include "auth/ntlmssp/ntlmssp_private.h" + +NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security, + const DATA_BLOB *first_packet) +{ + if (ntlmssp_blob_matches_magic(first_packet)) { + return NT_STATUS_OK; + } else { + return NT_STATUS_INVALID_PARAMETER; + } +} + +/** + * Return the NTLMSSP master session key + * + * @param ntlmssp_state NTLMSSP State + */ + +NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security, + TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state; + + if (ntlmssp_state->expected_state != NTLMSSP_DONE) { + return NT_STATUS_NO_USER_SESSION_KEY; + } + + if (!ntlmssp_state->session_key.data) { + return NT_STATUS_NO_USER_SESSION_KEY; + } + *session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length); + if (!session_key->data) { + return NT_STATUS_NO_MEMORY; + } + + return NT_STATUS_OK; +} + +bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security, + uint32_t feature) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state; + + if (feature & GENSEC_FEATURE_SIGN) { + if (!ntlmssp_state->session_key.length) { + return false; + } + if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) { + return true; + } + } + if (feature & GENSEC_FEATURE_SEAL) { + if (!ntlmssp_state->session_key.length) { + return false; + } + if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) { + return true; + } + } + if (feature & GENSEC_FEATURE_SESSION_KEY) { + if (ntlmssp_state->session_key.length) { + return true; + } + } + if (feature & GENSEC_FEATURE_DCE_STYLE) { + return true; + } + if (feature & GENSEC_FEATURE_ASYNC_REPLIES) { + if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) { + return true; + } + } + if (feature & GENSEC_FEATURE_SIGN_PKT_HEADER) { + return true; + } + if (feature & GENSEC_FEATURE_NEW_SPNEGO) { + if (!ntlmssp_state->session_key.length) { + return false; + } + if (!(ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) { + return false; + } + return ntlmssp_state->new_spnego; + } + + return false; +} + +NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp; + + gensec_ntlmssp = talloc_zero(gensec_security, + struct gensec_ntlmssp_context); + if (!gensec_ntlmssp) { + return NT_STATUS_NO_MEMORY; + } + + gensec_security->private_data = gensec_ntlmssp; + return NT_STATUS_OK; +} + +NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security, + TALLOC_CTX *sig_mem_ctx, + const uint8_t *data, size_t length, + const uint8_t *whole_pdu, size_t pdu_length, + DATA_BLOB *sig) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + NTSTATUS nt_status; + + nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state, + sig_mem_ctx, + data, length, + whole_pdu, pdu_length, + sig); + + return nt_status; +} + +NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security, + const uint8_t *data, size_t length, + const uint8_t *whole_pdu, size_t pdu_length, + const DATA_BLOB *sig) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + NTSTATUS nt_status; + + nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state, + data, length, + whole_pdu, pdu_length, + sig); + + return nt_status; +} + +NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security, + TALLOC_CTX *sig_mem_ctx, + uint8_t *data, size_t length, + const uint8_t *whole_pdu, size_t pdu_length, + DATA_BLOB *sig) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + NTSTATUS nt_status; + + nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state, + sig_mem_ctx, + data, length, + whole_pdu, pdu_length, + sig); + + return nt_status; +} + +/* + wrappers for the ntlmssp_*() functions +*/ +NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security, + uint8_t *data, size_t length, + const uint8_t *whole_pdu, size_t pdu_length, + const DATA_BLOB *sig) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + NTSTATUS nt_status; + + nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state, + data, length, + whole_pdu, pdu_length, + sig); + + return nt_status; +} + +size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size) +{ + return NTLMSSP_SIG_SIZE; +} + +NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security, + TALLOC_CTX *out_mem_ctx, + const DATA_BLOB *in, + DATA_BLOB *out) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + + return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state, + out_mem_ctx, + in, out); +} + + +NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security, + TALLOC_CTX *out_mem_ctx, + const DATA_BLOB *in, + DATA_BLOB *out) +{ + struct gensec_ntlmssp_context *gensec_ntlmssp = + talloc_get_type_abort(gensec_security->private_data, + struct gensec_ntlmssp_context); + + return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state, + out_mem_ctx, + in, out); +} |