Make krb5 wrapper library common so they can be used all over

1 files changed, 215 insertions, 0 deletions

diff --git a/lib/krb5_wrap/krb5_samba.h b/lib/krb5_wrap/krb5_samba.h
new file mode 100644
index 0000000000..3800b024ad
--- /dev/null
+++ b/lib/krb5_wrap/krb5_samba.h
@@ -0,0 +1,215 @@
+/*
+   Unix SMB/CIFS implementation.
+   simple kerberos5 routines for active directory
+   Copyright (C) Andrew Tridgell 2001
+   Copyright (C) Luke Howard 2002-2003
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+   Copyright (C) Guenther Deschner 2005-2009
+
+   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 _KRB5_SAMBA_H
+#define _KRB5_SAMBA_H
+
+#ifdef HAVE_KRB5
+
+#define KRB5_PRIVATE    1       /* this file uses PRIVATE interfaces! */
+/* this file uses DEPRECATED interfaces! */
+
+#if defined(HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER)
+#define KRB5_DEPRECATED 1
+#else
+#define KRB5_DEPRECATED
+#endif
+
+#include "system/kerberos.h"
+#include "system/network.h"
+
+#ifndef KRB5_ADDR_NETBIOS
+#define KRB5_ADDR_NETBIOS 0x14
+#endif
+
+#ifndef KRB5KRB_ERR_RESPONSE_TOO_BIG
+#define KRB5KRB_ERR_RESPONSE_TOO_BIG (-1765328332L)
+#endif
+
+/* Heimdal uses a slightly different name */
+#if defined(HAVE_ENCTYPE_ARCFOUR_HMAC_MD5) && !defined(HAVE_ENCTYPE_ARCFOUR_HMAC)
+#define ENCTYPE_ARCFOUR_HMAC ENCTYPE_ARCFOUR_HMAC_MD5
+#endif
+
+/* The older versions of heimdal that don't have this
+   define don't seem to use it anyway.  I'm told they
+   always use a subkey */
+#ifndef HAVE_AP_OPTS_USE_SUBKEY
+#define AP_OPTS_USE_SUBKEY 0
+#endif
+
+typedef struct {
+#if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
+	krb5_address **addrs;
+#elif defined(HAVE_KRB5_ADDRESSES) /* Heimdal */
+	krb5_addresses *addrs;
+#else
+#error UNKNOWN_KRB5_ADDRESS_TYPE
+#endif /* defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) */
+} smb_krb5_addresses;
+
+#ifdef HAVE_KRB5_KEYTAB_ENTRY_KEY               /* MIT */
+#define KRB5_KT_KEY(k)		(&(k)->key)
+#elif HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK          /* Heimdal */
+#define KRB5_KT_KEY(k)		(&(k)->keyblock)
+#else
+#error krb5_keytab_entry has no key or keyblock member
+#endif /* HAVE_KRB5_KEYTAB_ENTRY_KEY */
+
+/* work around broken krb5.h on sles9 */
+#ifdef SIZEOF_LONG
+#undef SIZEOF_LONG
+#endif
+
+#ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE /* Heimdal */
+#define KRB5_KEY_TYPE(k)	((k)->keytype)
+#define KRB5_KEY_LENGTH(k)	((k)->keyvalue.length)
+#define KRB5_KEY_DATA(k)	((k)->keyvalue.data)
+#define KRB5_KEY_DATA_CAST	void
+#else /* MIT */
+#define KRB5_KEY_TYPE(k)	((k)->enctype)
+#define KRB5_KEY_LENGTH(k)	((k)->length)
+#define KRB5_KEY_DATA(k)	((k)->contents)
+#define KRB5_KEY_DATA_CAST	krb5_octet
+#endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
+
+krb5_error_code smb_krb5_parse_name(krb5_context context,
+				const char *name, /* in unix charset */
+                                krb5_principal *principal);
+
+krb5_error_code smb_krb5_unparse_name(TALLOC_CTX *mem_ctx,
+				      krb5_context context,
+				      krb5_const_principal principal,
+				      char **unix_name);
+
+krb5_error_code krb5_set_default_tgs_ktypes(krb5_context ctx, const krb5_enctype *enc);
+
+#if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
+krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context, krb5_auth_context auth_context, krb5_keyblock *keyblock);
+#endif
+
+#ifndef HAVE_KRB5_FREE_UNPARSED_NAME
+void krb5_free_unparsed_name(krb5_context ctx, char *val);
+#endif
+
+/* Stub out initialize_krb5_error_table since it is not present in all
+ * Kerberos implementations. If it's not present, it's not necessary to
+ * call it.
+ */
+#ifndef HAVE_INITIALIZE_KRB5_ERROR_TABLE
+#define initialize_krb5_error_table()
+#endif
+
+/* Samba wrapper functions for krb5 functionality. */
+bool setup_kaddr( krb5_address *pkaddr, struct sockaddr_storage *paddr);
+int create_kerberos_key_from_string(krb5_context context,
+				    krb5_principal host_princ,
+				    krb5_data *password,
+				    krb5_keyblock *key,
+				    krb5_enctype enctype,
+				    bool no_salt);
+int create_kerberos_key_from_string_direct(krb5_context context,
+					   krb5_principal host_princ,
+					   krb5_data *password,
+					   krb5_keyblock *key,
+					   krb5_enctype enctype);
+
+krb5_error_code get_kerberos_allowed_etypes(krb5_context context, krb5_enctype **enctypes);
+bool get_krb5_smb_session_key(TALLOC_CTX *mem_ctx,
+			      krb5_context context,
+			      krb5_auth_context auth_context,
+			      DATA_BLOB *session_key, bool remote);
+krb5_error_code smb_krb5_kt_free_entry(krb5_context context, krb5_keytab_entry *kt_entry);
+void kerberos_set_creds_enctype(krb5_creds *pcreds, int enctype);
+bool kerberos_compatible_enctypes(krb5_context context, krb5_enctype enctype1, krb5_enctype enctype2);
+void kerberos_free_data_contents(krb5_context context, krb5_data *pdata);
+krb5_error_code smb_krb5_parse_name_norealm(krb5_context context,
+					    const char *name,
+					    krb5_principal *principal);
+bool smb_krb5_principal_compare_any_realm(krb5_context context,
+					  krb5_const_principal princ1,
+					  krb5_const_principal princ2);
+krb5_error_code smb_krb5_renew_ticket(const char *ccache_string, const char *client_string, const char *service_string, time_t *expire_time);
+krb5_error_code kpasswd_err_to_krb5_err(krb5_error_code res_code);
+krb5_error_code smb_krb5_gen_netbios_krb5_address(smb_krb5_addresses **kerb_addr,
+						  const char *netbios_name);
+krb5_error_code smb_krb5_free_addresses(krb5_context context, smb_krb5_addresses *addr);
+NTSTATUS krb5_to_nt_status(krb5_error_code kerberos_error);
+krb5_error_code nt_status_to_krb5(NTSTATUS nt_status);
+void smb_krb5_free_error(krb5_context context, krb5_error *krberror);
+krb5_error_code handle_krberror_packet(krb5_context context,
+                                         krb5_data *packet);
+
+void smb_krb5_get_init_creds_opt_free(krb5_context context,
+				    krb5_get_init_creds_opt *opt);
+krb5_error_code smb_krb5_get_init_creds_opt_alloc(krb5_context context,
+				    krb5_get_init_creds_opt **opt);
+krb5_enctype smb_get_enctype_from_kt_entry(krb5_keytab_entry *kt_entry);
+krb5_error_code smb_krb5_enctype_to_string(krb5_context context,
+					    krb5_enctype enctype,
+					    char **etype_s);
+krb5_error_code smb_krb5_open_keytab(krb5_context context,
+				      const char *keytab_name,
+				      bool write_access,
+				      krb5_keytab *keytab);
+krb5_error_code smb_krb5_keytab_name(TALLOC_CTX *mem_ctx,
+				     krb5_context context,
+				     krb5_keytab keytab,
+				     const char **keytab_name);
+krb5_error_code smb_krb5_get_credentials(krb5_context context,
+					 krb5_ccache ccache,
+					 krb5_principal me,
+					 krb5_principal server,
+					 krb5_principal impersonate_princ,
+					 krb5_creds **out_creds);
+krb5_error_code smb_krb5_get_creds(const char *server_s,
+				   time_t time_offset,
+				   const char *cc,
+				   const char *impersonate_princ_s,
+				   krb5_creds **creds_p);
+char *smb_krb5_principal_get_realm(krb5_context context,
+				   krb5_principal principal);
+
+char *kerberos_get_principal_from_service_hostname(TALLOC_CTX *mem_ctx,
+						   const char *service,
+						   const char *remote_name,
+						   const char *default_realm);
+
+char *smb_get_krb5_error_message(krb5_context context,
+				 krb5_error_code code,
+				 TALLOC_CTX *mem_ctx);
+
+int cli_krb5_get_ticket(TALLOC_CTX *mem_ctx,
+			const char *principal, time_t time_offset,
+			DATA_BLOB *ticket, DATA_BLOB *session_key_krb5,
+			uint32_t extra_ap_opts, const char *ccname,
+			time_t *tgs_expire,
+			const char *impersonate_princ_s);
+
+bool unwrap_edata_ntstatus(TALLOC_CTX *mem_ctx,
+			   DATA_BLOB *edata,
+			   DATA_BLOB *edata_out);
+
+#endif /* HAVE_KRB5 */
+
+
+#endif /* _KRB5_SAMBA_H */