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dce6fdf195
metze
361 lines
14 KiB
C
361 lines
14 KiB
C
/*
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Unix SMB/CIFS implementation.
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Generic Authentication Interface
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GENSEC_H__
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#define __GENSEC_H__
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#include "../lib/util/data_blob.h"
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#include "libcli/util/ntstatus.h"
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#define GENSEC_SASL_NAME_NTLMSSP "NTLM"
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#define GENSEC_OID_NTLMSSP "1.3.6.1.4.1.311.2.2.10"
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#define GENSEC_OID_SPNEGO "1.3.6.1.5.5.2"
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#define GENSEC_OID_KERBEROS5 "1.2.840.113554.1.2.2"
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#define GENSEC_OID_KERBEROS5_OLD "1.2.840.48018.1.2.2"
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#define GENSEC_OID_KERBEROS5_USER2USER "1.2.840.113554.1.2.2.3"
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enum gensec_priority {
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GENSEC_SPNEGO = 90,
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GENSEC_GSSAPI = 80,
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GENSEC_KRB5 = 70,
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GENSEC_SCHANNEL = 60,
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GENSEC_NTLMSSP = 50,
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GENSEC_SASL = 20,
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GENSEC_OTHER = 0
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};
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struct gensec_security;
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struct gensec_target {
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const char *principal;
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const char *hostname;
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const char *service;
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};
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#define GENSEC_FEATURE_SESSION_KEY 0x00000001
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#define GENSEC_FEATURE_SIGN 0x00000002
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#define GENSEC_FEATURE_SEAL 0x00000004
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#define GENSEC_FEATURE_DCE_STYLE 0x00000008
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#define GENSEC_FEATURE_ASYNC_REPLIES 0x00000010
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#define GENSEC_FEATURE_DATAGRAM_MODE 0x00000020
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#define GENSEC_FEATURE_SIGN_PKT_HEADER 0x00000040
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#define GENSEC_FEATURE_NEW_SPNEGO 0x00000080
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#define GENSEC_FEATURE_UNIX_TOKEN 0x00000100
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#define GENSEC_EXPIRE_TIME_INFINITY (NTTIME)0x8000000000000000LL
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/* GENSEC mode */
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enum gensec_role
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{
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GENSEC_SERVER,
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GENSEC_CLIENT
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};
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struct auth_session_info;
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struct cli_credentials;
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struct gensec_settings;
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struct tevent_context;
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struct tevent_req;
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struct smb_krb5_context;
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struct gensec_settings {
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struct loadparm_context *lp_ctx;
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const char *target_hostname;
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/* this allows callers to specify a specific set of ops that
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* should be used, rather than those loaded by the plugin
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* mechanism */
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struct gensec_security_ops **backends;
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/* To fill in our own name in the NTLMSSP server */
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const char *server_dns_domain;
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const char *server_dns_name;
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const char *server_netbios_domain;
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const char *server_netbios_name;
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};
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struct gensec_security_ops {
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const char *name;
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const char *sasl_name;
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uint8_t auth_type; /* 0 if not offered on DCE-RPC */
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const char **oid; /* NULL if not offered by SPNEGO */
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NTSTATUS (*client_start)(struct gensec_security *gensec_security);
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NTSTATUS (*server_start)(struct gensec_security *gensec_security);
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/**
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Determine if a packet has the right 'magic' for this mechanism
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*/
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NTSTATUS (*magic)(struct gensec_security *gensec_security,
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const DATA_BLOB *first_packet);
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NTSTATUS (*update)(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
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struct tevent_context *ev,
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const DATA_BLOB in, DATA_BLOB *out);
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NTSTATUS (*seal_packet)(struct gensec_security *gensec_security, TALLOC_CTX *sig_mem_ctx,
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uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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DATA_BLOB *sig);
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NTSTATUS (*sign_packet)(struct gensec_security *gensec_security, TALLOC_CTX *sig_mem_ctx,
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const uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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DATA_BLOB *sig);
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size_t (*sig_size)(struct gensec_security *gensec_security, size_t data_size);
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size_t (*max_input_size)(struct gensec_security *gensec_security);
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size_t (*max_wrapped_size)(struct gensec_security *gensec_security);
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NTSTATUS (*check_packet)(struct gensec_security *gensec_security,
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const uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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const DATA_BLOB *sig);
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NTSTATUS (*unseal_packet)(struct gensec_security *gensec_security,
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uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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const DATA_BLOB *sig);
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NTSTATUS (*wrap)(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out);
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NTSTATUS (*unwrap)(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out);
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NTSTATUS (*wrap_packets)(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out,
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size_t *len_processed);
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NTSTATUS (*unwrap_packets)(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out,
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size_t *len_processed);
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NTSTATUS (*packet_full_request)(struct gensec_security *gensec_security,
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DATA_BLOB blob, size_t *size);
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NTSTATUS (*session_key)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
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DATA_BLOB *session_key);
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NTSTATUS (*session_info)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
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struct auth_session_info **session_info);
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void (*want_feature)(struct gensec_security *gensec_security,
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uint32_t feature);
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bool (*have_feature)(struct gensec_security *gensec_security,
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uint32_t feature);
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NTTIME (*expire_time)(struct gensec_security *gensec_security);
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bool enabled;
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bool kerberos;
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enum gensec_priority priority;
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};
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struct gensec_security_ops_wrapper {
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const struct gensec_security_ops *op;
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const char *oid;
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};
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#define GENSEC_INTERFACE_VERSION 0
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struct gensec_security {
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const struct gensec_security_ops *ops;
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void *private_data;
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struct cli_credentials *credentials;
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struct gensec_target target;
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enum gensec_role gensec_role;
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bool subcontext;
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uint32_t want_features;
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uint32_t max_update_size;
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uint8_t dcerpc_auth_level;
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struct tsocket_address *local_addr, *remote_addr;
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struct gensec_settings *settings;
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/* When we are a server, this may be filled in to provide an
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* NTLM authentication backend, and user lookup (such as if no
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* PAC is found) */
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struct auth4_context *auth_context;
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};
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/* this structure is used by backends to determine the size of some critical types */
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struct gensec_critical_sizes {
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int interface_version;
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int sizeof_gensec_security_ops;
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int sizeof_gensec_security;
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};
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/* Socket wrapper */
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struct gensec_security;
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struct socket_context;
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struct auth4_context;
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struct auth_user_info_dc;
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/* These functions are for use here only (public because SPNEGO must
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* use them for recursion) */
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NTSTATUS gensec_wrap_packets(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out,
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size_t *len_processed);
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/* These functions are for use here only (public because SPNEGO must
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* use them for recursion) */
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NTSTATUS gensec_unwrap_packets(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out,
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size_t *len_processed);
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/* These functions are for use here only (public because SPNEGO must
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* use them for recursion) */
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NTSTATUS gensec_packet_full_request(struct gensec_security *gensec_security,
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DATA_BLOB blob, size_t *size);
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struct loadparm_context;
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NTSTATUS gensec_subcontext_start(TALLOC_CTX *mem_ctx,
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struct gensec_security *parent,
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struct gensec_security **gensec_security);
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NTSTATUS gensec_client_start(TALLOC_CTX *mem_ctx,
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struct gensec_security **gensec_security,
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struct gensec_settings *settings);
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NTSTATUS gensec_start_mech_by_ops(struct gensec_security *gensec_security,
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const struct gensec_security_ops *ops);
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NTSTATUS gensec_start_mech_by_sasl_list(struct gensec_security *gensec_security,
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const char **sasl_names);
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void gensec_set_max_update_size(struct gensec_security *gensec_security,
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uint32_t max_update_size);
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size_t gensec_max_update_size(struct gensec_security *gensec_security);
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NTSTATUS gensec_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
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struct tevent_context *ev,
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const DATA_BLOB in, DATA_BLOB *out);
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struct tevent_req *gensec_update_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct gensec_security *gensec_security,
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const DATA_BLOB in);
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NTSTATUS gensec_update_recv(struct tevent_req *req, TALLOC_CTX *out_mem_ctx, DATA_BLOB *out);
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void gensec_want_feature(struct gensec_security *gensec_security,
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uint32_t feature);
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bool gensec_have_feature(struct gensec_security *gensec_security,
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uint32_t feature);
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NTTIME gensec_expire_time(struct gensec_security *gensec_security);
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NTSTATUS gensec_set_credentials(struct gensec_security *gensec_security, struct cli_credentials *credentials);
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NTSTATUS gensec_set_target_service(struct gensec_security *gensec_security, const char *service);
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const char *gensec_get_target_service(struct gensec_security *gensec_security);
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NTSTATUS gensec_set_target_hostname(struct gensec_security *gensec_security, const char *hostname);
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const char *gensec_get_target_hostname(struct gensec_security *gensec_security);
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NTSTATUS gensec_session_key(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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DATA_BLOB *session_key);
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NTSTATUS gensec_start_mech_by_oid(struct gensec_security *gensec_security,
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const char *mech_oid);
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const char *gensec_get_name_by_oid(struct gensec_security *gensec_security, const char *oid_string);
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struct cli_credentials *gensec_get_credentials(struct gensec_security *gensec_security);
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NTSTATUS gensec_init(void);
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NTSTATUS gensec_register(const struct gensec_security_ops *ops);
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const struct gensec_security_ops *gensec_security_by_oid(struct gensec_security *gensec_security,
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const char *oid_string);
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const struct gensec_security_ops *gensec_security_by_sasl_name(struct gensec_security *gensec_security,
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const char *sasl_name);
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struct gensec_security_ops **gensec_security_mechs(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx);
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const struct gensec_security_ops_wrapper *gensec_security_by_oid_list(
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struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const char **oid_strings,
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const char *skip);
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const char **gensec_security_oids(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const char *skip);
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const char **gensec_security_oids_from_ops_wrapped(TALLOC_CTX *mem_ctx,
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const struct gensec_security_ops_wrapper *wops);
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size_t gensec_max_input_size(struct gensec_security *gensec_security);
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size_t gensec_max_wrapped_size(struct gensec_security *gensec_security);
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NTSTATUS gensec_unseal_packet(struct gensec_security *gensec_security,
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uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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const DATA_BLOB *sig);
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NTSTATUS gensec_check_packet(struct gensec_security *gensec_security,
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const uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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const DATA_BLOB *sig);
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size_t gensec_sig_size(struct gensec_security *gensec_security, size_t data_size);
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NTSTATUS gensec_seal_packet(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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DATA_BLOB *sig);
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NTSTATUS gensec_sign_packet(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const uint8_t *data, size_t length,
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const uint8_t *whole_pdu, size_t pdu_length,
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DATA_BLOB *sig);
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NTSTATUS gensec_start_mech(struct gensec_security *gensec_security);
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NTSTATUS gensec_start_mech_by_authtype(struct gensec_security *gensec_security,
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uint8_t auth_type, uint8_t auth_level);
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const char *gensec_get_name_by_authtype(struct gensec_security *gensec_security, uint8_t authtype);
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NTSTATUS gensec_server_start(TALLOC_CTX *mem_ctx,
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struct gensec_settings *settings,
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struct auth4_context *auth_context,
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struct gensec_security **gensec_security);
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NTSTATUS gensec_session_info(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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struct auth_session_info **session_info);
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NTSTATUS gensec_set_local_address(struct gensec_security *gensec_security,
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const struct tsocket_address *local);
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NTSTATUS gensec_set_remote_address(struct gensec_security *gensec_security,
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const struct tsocket_address *remote);
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const struct tsocket_address *gensec_get_local_address(struct gensec_security *gensec_security);
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const struct tsocket_address *gensec_get_remote_address(struct gensec_security *gensec_security);
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NTSTATUS gensec_start_mech_by_name(struct gensec_security *gensec_security,
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const char *name);
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NTSTATUS gensec_unwrap(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out);
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NTSTATUS gensec_wrap(struct gensec_security *gensec_security,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *in,
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DATA_BLOB *out);
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struct gensec_security_ops **gensec_security_all(void);
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bool gensec_security_ops_enabled(struct gensec_security_ops *ops, struct gensec_security *security);
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struct gensec_security_ops **gensec_use_kerberos_mechs(TALLOC_CTX *mem_ctx,
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struct gensec_security_ops **old_gensec_list,
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struct cli_credentials *creds);
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NTSTATUS gensec_start_mech_by_sasl_name(struct gensec_security *gensec_security,
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const char *sasl_name);
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int gensec_setting_int(struct gensec_settings *settings, const char *mechanism, const char *name, int default_value);
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bool gensec_setting_bool(struct gensec_settings *settings, const char *mechanism, const char *name, bool default_value);
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NTSTATUS gensec_set_target_principal(struct gensec_security *gensec_security, const char *principal);
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const char *gensec_get_target_principal(struct gensec_security *gensec_security);
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NTSTATUS gensec_generate_session_info_pac(TALLOC_CTX *mem_ctx,
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struct gensec_security *gensec_security,
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struct smb_krb5_context *smb_krb5_context,
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DATA_BLOB *pac_blob,
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const char *principal_string,
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const struct tsocket_address *remote_address,
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struct auth_session_info **session_info);
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NTSTATUS gensec_magic_check_krb5_oid(struct gensec_security *unused,
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const DATA_BLOB *blob);
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#endif /* __GENSEC_H__ */
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