Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 327 insertions, 0 deletions

diff --git a/auth/gensec/gensec.h b/auth/gensec/gensec.h
new file mode 100644
index 0000000..29d5e92
--- /dev/null
+++ b/auth/gensec/gensec.h
@@ -0,0 +1,327 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Generic Authentication Interface
+
+   Copyright (C) Andrew Tridgell 2003
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 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 <http://www.gnu.org/licenses/>.
+*/
+
+#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"
+
+#define GENSEC_FINAL_AUTH_TYPE_KRB5 "krb5"
+#define GENSEC_FINAL_AUTH_TYPE_NTLMSSP "NTLMSSP"
+
+enum gensec_priority {
+	GENSEC_SPNEGO = 90,
+	GENSEC_GSSAPI = 80,
+	GENSEC_KRB5 = 70,
+	GENSEC_SCHANNEL = 60,
+	GENSEC_NTLMSSP = 50,
+	GENSEC_SASL = 20,
+	GENSEC_OTHER = 10,
+	GENSEC_EXTERNAL = 0
+};
+
+struct gensec_security;
+struct gensec_target {
+	const char *principal;
+	const char *hostname;
+	const char *service;
+	const char *service_description;
+};
+
+#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_FEATURE_NTLM_CCACHE	0x00000200
+#define GENSEC_FEATURE_LDAP_STYLE	0x00000400
+#define GENSEC_FEATURE_NO_AUTHZ_LOG	0x00000800
+#define GENSEC_FEATURE_SMB_TRANSPORT	0x00001000
+#define GENSEC_FEATURE_LDAPS_TRANSPORT	0x00002000
+
+#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 tsocket_address;
+
+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 */
+	const struct gensec_security_ops * const *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;
+struct gensec_security_ops_wrapper;
+
+/* Change to 1, loadable modules now take a TALLOC_CTX * init() parameter. */
+#define GENSEC_INTERFACE_VERSION 1
+
+/* this structure is used by backends to determine the size of some critical types */
+struct gensec_critical_sizes;
+const struct gensec_critical_sizes *gensec_interface_version(void);
+
+/* Socket wrapper */
+
+struct gensec_security;
+struct auth4_context;
+struct auth_user_info_dc;
+
+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,
+		       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);
+
+#define GENSEC_UPDATE_IS_NTERROR(status) ( \
+	!NT_STATUS_IS_OK(status) && \
+	!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) \
+	)
+
+/**
+ * @brief Ask for features for a following authentication
+ *
+ * Typically only one specific feature bit should be passed,
+ * but it also works to ask for more features.
+ *
+ * The features must be requested before starting the
+ * gensec_update*() loop.
+ *
+ * The current exception is GENSEC_FEATURE_SIGN_PKT_HEADER,
+ * it can also be requested once the gensec_update*() loop
+ * returned NT_STATUS_OK.
+ *
+ * The features should not be changed during the gensec_update*()
+ * loop.
+ *
+ * @param[in]  gensec_security The context to be used
+ *
+ * @param[in]  feature         The requested feature[s].
+ *
+ */
+void gensec_want_feature(struct gensec_security *gensec_security,
+			 uint32_t feature);
+/**
+ * @brief Ask for one feature after the finished authentication
+ *
+ * Because the return value is bool, the caller can only
+ * ask for one feature at a time.
+ *
+ * The features must be requested after the finished
+ * gensec_update*() loop.
+ *
+ * The current exception is GENSEC_FEATURE_SIGN_PKT_HEADER,
+ * it can also be requested before the gensec_update*() loop,
+ * as the return value only indicates if the backend supports
+ * dcerpc header signing, not if header signing will be used
+ * between client and server. It will be used only if the caller
+ * also used gensec_want_feature(GENSEC_FEATURE_SIGN_PKT_HEADER).
+ *
+ * @param[in]  gensec_security The context to be used.
+ *
+ * @param[in]  feature         The requested feature.
+ *
+ * @return                     true if the feature is supported, false if not.
+ */
+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);
+/**
+ * Set the target service (such as 'http' or 'host') on a GENSEC context - ensures it is talloc()ed
+ *
+ * This is used for Kerberos service principal name resolution.
+ */
+
+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);
+/**
+ * Set the target service (such as 'samr') on an GENSEC context - ensures it is talloc()ed.
+ *
+ * This is not the Kerberos service principal, instead this is a
+ * constant value that can be logged as part of authentication and
+ * authorization logging
+ */
+const char *gensec_get_target_service_description(struct gensec_security *gensec_security);
+NTSTATUS gensec_set_target_service_description(struct gensec_security *gensec_security,
+					       const char *service);
+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(TALLOC_CTX *ctx,
+		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);
+const struct gensec_security_ops *gensec_security_by_auth_type(
+				struct gensec_security *gensec_security,
+				uint32_t auth_type);
+const struct gensec_security_ops *gensec_security_by_name(struct gensec_security *gensec_security,
+							  const char *name);
+const 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 * const *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_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);
+
+bool gensec_security_ops_enabled(const struct gensec_security_ops *ops, struct gensec_security *security);
+
+NTSTATUS gensec_start_mech_by_sasl_name(struct gensec_security *gensec_security,
+					const char *sasl_name);
+const char **gensec_security_sasl_names(struct gensec_security *gensec_security,
+					TALLOC_CTX *mem_ctx);
+
+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__ */