-/* $OpenBSD: auth.h,v 1.29 2002/03/04 17:27:39 stevesk Exp $ */
+/* $OpenBSD: auth.h,v 1.63 2009/08/15 18:56:34 fgsch Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
#ifndef AUTH_H
#define AUTH_H
-#include "key.h"
-#include "hostfile.h"
+#include <signal.h>
+
#include <openssl/rsa.h>
#ifdef HAVE_LOGIN_CAP
#endif
typedef struct Authctxt Authctxt;
+typedef struct Authmethod Authmethod;
typedef struct KbdintDevice KbdintDevice;
struct Authctxt {
- int success;
- int postponed;
- int valid;
+ sig_atomic_t success;
+ int authenticated; /* authenticated and alarms cancelled */
+ int postponed; /* authentication needs another step */
+ int valid; /* user exists and is allowed to login */
int attempt;
int failures;
- char *user;
+ int force_pwchange;
+ char *user; /* username sent by the client */
char *service;
- struct passwd *pw;
+ struct passwd *pw; /* set if 'valid' */
char *style;
void *kbdintctxt;
+ void *jpake_ctx;
#ifdef BSD_AUTH
auth_session_t *as;
#endif
-#ifdef KRB4
- char *krb4_ticket_file;
-#endif
#ifdef KRB5
krb5_context krb5_ctx;
- krb5_auth_context krb5_auth_ctx;
krb5_ccache krb5_fwd_ccache;
krb5_principal krb5_user;
char *krb5_ticket_file;
+ char *krb5_ccname;
#endif
+ Buffer *loginmsg;
+ void *methoddata;
+};
+/*
+ * Every authentication method has to handle authentication requests for
+ * non-existing users, or for users that are not allowed to login. In this
+ * case 'valid' is set to 0, but 'user' points to the username requested by
+ * the client.
+ */
+
+struct Authmethod {
+ char *name;
+ int (*userauth)(Authctxt *authctxt);
+ int *enabled;
};
/*
void (*free_ctx)(void *ctx);
};
-int auth_rhosts(struct passwd *, const char *);
+int auth_rhosts(struct passwd *, const char *);
int
auth_rhosts2(struct passwd *, const char *, const char *, const char *);
-int auth_rhosts_rsa(struct passwd *, const char *, Key *);
+int auth_rhosts_rsa(Authctxt *, char *, Key *);
int auth_password(Authctxt *, const char *);
-int auth_rsa(struct passwd *, BIGNUM *);
-int auth_rsa_challenge_dialog(RSA *);
+int auth_rsa(Authctxt *, BIGNUM *);
+int auth_rsa_challenge_dialog(Key *);
+BIGNUM *auth_rsa_generate_challenge(Key *);
+int auth_rsa_verify_response(Key *, BIGNUM *, u_char[]);
+int auth_rsa_key_allowed(struct passwd *, BIGNUM *, Key **);
-#ifdef KRB4
-#include <krb.h>
-int auth_krb4(Authctxt *, KTEXT, char **);
-int auth_krb4_password(Authctxt *, const char *);
-void krb4_cleanup_proc(void *);
-
-#ifdef AFS
-#include <kafs.h>
-int auth_krb4_tgt(Authctxt *, const char *);
-int auth_afs_token(Authctxt *, const char *);
-#endif /* AFS */
-
-#endif /* KRB4 */
+int auth_rhosts_rsa_key_allowed(struct passwd *, char *, char *, Key *);
+int hostbased_key_allowed(struct passwd *, const char *, char *, Key *);
+int user_key_allowed(struct passwd *, Key *);
#ifdef KRB5
-int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client);
+int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client, krb5_data *);
int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt);
int auth_krb5_password(Authctxt *authctxt, const char *password);
-void krb5_cleanup_proc(void *authctxt);
+void krb5_cleanup_proc(Authctxt *authctxt);
#endif /* KRB5 */
+#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
+#include <shadow.h>
+int auth_shadow_acctexpired(struct spwd *);
+int auth_shadow_pwexpired(Authctxt *);
+#endif
+
#include "auth-pam.h"
-#include "auth2-pam.h"
+#include "audit.h"
+void remove_kbdint_device(const char *);
+
+void disable_forwarding(void);
-void do_authentication(void);
-void do_authentication2(void);
+void do_authentication(Authctxt *);
+void do_authentication2(Authctxt *);
-Authctxt *authctxt_new(void);
void auth_log(Authctxt *, int, char *, char *);
void userauth_finish(Authctxt *, int, char *);
+void userauth_send_banner(const char *);
int auth_root_allowed(char *);
+char *auth2_read_banner(void);
+
+void privsep_challenge_enable(void);
+
int auth2_challenge(Authctxt *, char *);
void auth2_challenge_stop(Authctxt *);
+int bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
+int bsdauth_respond(void *, u_int, char **);
+int skey_query(void *, char **, char **, u_int *, char ***, u_int **);
+int skey_respond(void *, u_int, char **);
+
+void auth2_jpake_get_pwdata(Authctxt *, BIGNUM **, char **, char **);
+void auth2_jpake_stop(Authctxt *);
int allowed_user(struct passwd *);
+struct passwd * getpwnamallow(const char *user);
char *get_challenge(Authctxt *);
int verify_response(Authctxt *, const char *);
+void abandon_challenge_response(Authctxt *);
-struct passwd * auth_get_user(void);
-
-char *expand_filename(const char *, struct passwd *);
char *authorized_keys_file(struct passwd *);
char *authorized_keys_file2(struct passwd *);
-int
-secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
+FILE *auth_openkeyfile(const char *, struct passwd *, int);
HostStatus
check_key_in_hostfiles(struct passwd *, Key *, const char *,
const char *, const char *);
-#define AUTH_FAIL_MAX 6
-#define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
+/* hostkey handling */
+Key *get_hostkey_by_index(int);
+Key *get_hostkey_by_type(int);
+int get_hostkey_index(Key *);
+int ssh1_session_key(BIGNUM *);
+
+/* debug messages during authentication */
+void auth_debug_add(const char *fmt,...) __attribute__((format(printf, 1, 2)));
+void auth_debug_send(void);
+void auth_debug_reset(void);
+
+struct passwd *fakepw(void);
+
+int sys_auth_passwd(Authctxt *, const char *);
+
#define AUTH_FAIL_MSG "Too many authentication failures for %.100s"
+#define SKEY_PROMPT "\nS/Key Password: "
+
+#if defined(KRB5) && !defined(HEIMDAL)
+#include <krb5.h>
+krb5_error_code ssh_krb5_cc_gen(krb5_context, krb5_ccache *);
+#endif
#endif
andersk / openssh.git / blobdiff