--- /dev/null
+/*
+ * Copyright (c) 1999-2002 Todd C. Miller <Todd.Miller@courtesan.com>
+ * Copyright (c) 2002 Michael Stroucken <michael@stroucken.org>
+ * All rights reserved.
+ *
+ * This code is derived from software contributed by Michael Stroucken
+ * <michael@stroucken.org>
+ *
+ * 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.
+ *
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 4. Products derived from this software may not be called "Sudo" nor
+ * may "Sudo" appear in their names without specific prior written
+ * permission from the author.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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.
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#ifdef HAVE_STRING_H
+# include <string.h>
+#else
+# ifdef HAVE_STRINGS_H
+# include <strings.h>
+# endif
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#include <pwd.h>
+
+/* Needed for SecurID v5.0 Authentication on UNIX */
+#define UNIX 1
+#include <acexport.h>
+#include <sdacmvls.h>
+
+#include "sudo.h"
+#include "sudo_auth.h"
+
+#ifndef lint
+/* static const char rcsid[] = "$Sudo$"; */
+#endif /* lint */
+
+/*
+ * securid_init - Initialises communications with ACE server
+ * Arguments in:
+ * pw - UNUSED
+ * promptp - UNUSED
+ * auth - sudo authentication structure
+ *
+ * Results out:
+ * auth - auth->data contains pointer to new SecurID handle
+ * return code - Fatal if initialization unsuccessful, otherwise
+ * success.
+ */
+int
+securid_init(pw, promptp, auth)
+ struct passwd *pw;
+ char **promptp;
+ sudo_auth *auth;
+{
+ static SDI_HANDLE sd_dat; /* SecurID handle */
+
+ auth->data = (VOID *) &sd_dat; /* For method-specific data */
+
+ /* Start communications */
+ if (AceInitialize() != SD_FALSE)
+ return(AUTH_SUCCESS);
+
+ fprintf(stderr, "Failed to initialise ACE API library.\n");
+ return(AUTH_FATAL);
+}
+
+/*
+ * securid_setup - Initialises a SecurID transaction and locks out other
+ * ACE servers
+ *
+ * Arguments in:
+ * pw - struct passwd for username
+ * promptp - UNUSED
+ * auth - sudo authentication structure for SecurID handle
+ *
+ * Results out:
+ * return code - Success if transaction started correctly, fatal
+ * otherwise
+ */
+int
+securid_setup(pw, promptp, auth)
+ struct passwd *pw;
+ char **promptp;
+ sudo_auth *auth;
+{
+ SDI_HANDLE *sd = (SDI_HANDLE *) auth->data;
+ int retval;
+
+ /* Re-initialize SecurID every time. */
+ if (SD_Init(sd) != ACM_OK) {
+ (void) fprintf(stderr, "%s: Cannot contact SecurID server\n", Argv[0]);
+ return(AUTH_FATAL);
+ }
+
+ /* Lock new PIN code */
+ retval = SD_Lock(*sd, pw->pw_name);
+
+ switch (retval) {
+ case ACE_UNDEFINED_USERNAME:
+ fprintf(stderr, "Invalid username length for SecurID\n");
+ return(AUTH_FATAL);
+
+ case ACE_ERR_INVALID_HANDLE:
+ fprintf(stderr, "Invalid Authentication Handle for SecurID\n");
+ return(AUTH_FATAL);
+
+ case ACM_ACCESS_DENIED:
+ fprintf(stderr, "SecurID communication has failed\n");
+ return(AUTH_FATAL);
+
+ case ACM_OK:
+ fprintf(stderr, "User ID locked for SecurID Authentication\n");
+ return(AUTH_SUCCESS);
+ }
+}
+
+/*
+ * securid_verify - Authenticates user and handles ACE responses
+ *
+ * Arguments in:
+ * pw - struct passwd for username
+ * pass - UNUSED
+ * auth - sudo authentication structure for SecurID handle
+ *
+ * Results out:
+ * return code - Success on successful authentication, failure on
+ * incorrect authentication, fatal on errors
+ */
+int
+securid_verify(pw, pass, auth)
+ struct passwd *pw;
+ char *pass;
+ sudo_auth *auth;
+{
+ SDI_HANDLE *sd = (SDI_HANDLE *) auth->data;
+ int rval;
+
+ pass = (char *) tgetpass("Enter your PASSCODE: ",
+ def_ival(I_PASSWD_TIMEOUT) * 60, tgetpass_flags);
+
+ /* Have ACE verify password */
+ switch (SD_Check(*sd, pass, pw->pw_name)) {
+ case ACE_UNDEFINED_PASSCODE:
+ fprintf(stderr, "Invalid passcode length for SecurID\n");
+ rval = AUTH_FATAL;
+ break;
+
+ case ACE_UNDEFINED_USERNAME:
+ fprintf(stderr, "Invalid username length for SecurID\n");
+ rval = AUTH_FATAL;
+ break;
+
+ case ACE_ERR_INVALID_HANDLE:
+ fprintf(stderr, "Invalid Authentication Handle for SecurID\n");
+ rval = AUTH_FATAL;
+
+ case ACM_ACCESS_DENIED:
+ rval = AUTH_FAILURE;
+ break;
+
+ case ACM_NEXT_CODE_REQUIRED:
+ /* Sometimes (when current token close to expire?)
+ ACE challenges for the next token displayed
+ (entered without the PIN) */
+ pass = (char *) tgetpass("\
+!!! ATTENTION !!!\n\
+Wait for the token code to change, \n\
+then enter the new token code.\n", \
+ def_ival(I_PASSWD_TIMEOUT) * 60, tgetpass_flags);
+
+ if (SD_Next(*sd, pass) == ACM_OK) {
+ rval = AUTH_SUCCESS;
+ break;
+ }
+
+ rval = AUTH_FAILURE;
+ break;
+
+ case ACM_NEW_PIN_REQUIRED:
+ /*
+ * This user's SecurID has not been activated yet,
+ * or the pin has been reset
+ */
+ /* XXX - Is setting up a new PIN within sudo's scope? */
+ SD_Pin(*sd, "");
+ fprintf(stderr, "Your SecurID access has not yet been set up.\n");
+ fprintf(stderr, "Please set up a PIN before you try to authenticate.\n");
+ rval = AUTH_FATAL;
+ break;
+ }
+
+ /* Free resources */
+ SD_Close(*sd);
+
+ /* Return stored state to calling process */
+ return(rval);
+}
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