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