packetstorm sync

1 files changed, 134 insertions, 0 deletions

diff --git a/other/ssharp/auth.h b/other/ssharp/auth.h
new file mode 100644
index 0000000..7e30e86
--- /dev/null
+++ b/other/ssharp/auth.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2000 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $OpenBSD: auth.h,v 1.15 2001/04/12 19:15:24 markus Exp $
+ */
+#ifndef AUTH_H
+#define AUTH_H
+
+#include <openssl/rsa.h>
+
+#ifdef HAVE_LOGIN_CAP
+#include <login_cap.h>
+#endif
+
+#include "ssharp.h"
+
+typedef enum { AUTH_PASSWD, AUTH_RSA } auth_t;
+
+typedef struct Authctxt Authctxt;
+struct Authctxt {
+        int success;
+        int postponed;
+        int valid;
+        int attempt;
+        int failures;
+        char *user;
+        char *service;
+        sharp_t sharp;
+        char *style;
+
+        /* SSHARP */
+        auth_t how;
+
+        /* in RSA case we need to alloc pty before
+         * EXEC PTY_REQUEST comes, since we use special
+         * client to get the RSA challenge */
+        int master, slave;
+        int pid;
+};
+
+
+/*
+ * Tries to authenticate the user using password.  Returns true if
+ * authentication succeeds.
+ */
+int     auth_password(Authctxt *authctxt, const char *password);
+
+/*
+ * Performs the RSA authentication dialog with the client.  This returns 0 if
+ * the client could not be authenticated, and 1 if authentication was
+ * successful.  This may exit if there is a serious protocol violation.
+ */
+int     auth_rsa(Authctxt *, BIGNUM * client_n);
+
+/*
+ * Parses an RSA key (number of bits, e, n) from a string.  Moves the pointer
+ * over the key.  Skips any whitespace at the beginning and at end.
+ */
+int     auth_rsa_read_key(char **cpp, u_int *bitsp, BIGNUM * e, BIGNUM * n);
+
+/*
+ * Performs the RSA authentication challenge-response dialog with the client,
+ * and returns true (non-zero) if the client gave the correct answer to our
+ * challenge; returns zero if the client gives a wrong answer.
+ */
+int     auth_rsa_challenge_dialog(BIGNUM *);
+
+#ifdef KRB4
+#include <krb.h>
+/*
+ * Performs Kerberos v4 mutual authentication with the client. This returns 0
+ * if the client could not be authenticated, and 1 if authentication was
+ * successful.  This may exit if there is a serious protocol violation.
+ */
+int     auth_krb4(const char *server_user, KTEXT auth, char **client);
+int     krb4_init(uid_t uid);
+void    krb4_cleanup_proc(void *ignore);
+int     auth_krb4_password(struct passwd * pw, const char *password);
+
+#ifdef AFS
+#include <kafs.h>
+
+/* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */
+int     auth_kerberos_tgt(struct passwd * pw, const char *string);
+int     auth_afs_token(struct passwd * pw, const char *token_string);
+#endif                          /* AFS */
+
+#endif                          /* KRB4 */
+
+#include "auth-pam.h"
+#include "auth2-pam.h"
+
+void    do_authentication(void);
+void    do_authentication2(void);
+
+Authctxt *authctxt_new(void);
+void    auth_log(Authctxt *authctxt, int authenticated, char *method, char *info);
+void    userauth_finish(Authctxt *authctxt, int authenticated, char *method);
+int     auth_root_allowed(char *method);
+
+int     auth2_challenge(Authctxt *authctxt, char *devs);
+
+int     allowed_user(struct passwd * pw);
+
+char    *get_challenge(Authctxt *authctxt, char *devs);
+int     verify_response(Authctxt *authctxt, char *response);
+
+struct passwd * auth_get_user(void);
+
+#define AUTH_FAIL_MAX 6
+#define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
+#define AUTH_FAIL_MSG "Too many authentication failures for %.100s"
+
+#endif