- djm@cvs.openbsd.org 2010/01/30 02:54:53

[openssh.git] / auth-sia.c

diff --git a/auth-sia.c b/auth-sia.c
index 6fece555d1ba71c1c2e844e39c6645a78779205e..a9e1c258ca61ec6c302e962aa1de2c8eda4d85dd 100644 (file)
--- a/auth-sia.c
+++ b/auth-sia.c
@@ -1,12 +1,30 @@
+/*
+ * Copyright (c) 2002 Chris Adams.  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.
+ */
+
 #include "includes.h"
 
 #ifdef HAVE_OSF_SIA
-#include "ssh.h"
-#include "auth-sia.h"
-#include "log.h"
-#include "servconf.h"
-#include "canohost.h"
-
 #include <sia.h>
 #include <siad.h>
 #include <pwd.h>
@@ -14,60 +32,65 @@
 #include <setjmp.h>
 #include <sys/resource.h>
 #include <unistd.h>
+#include <stdarg.h>
 #include <string.h>
 
+#include "ssh.h"
+#include "key.h"
+#include "hostfile.h"
+#include "auth.h"
+#include "auth-sia.h"
+#include "log.h"
+#include "servconf.h"
+#include "canohost.h"
+#include "uidswap.h"
+
 extern ServerOptions options;
 extern int saved_argc;
 extern char **saved_argv;
 
-extern int errno;
-
 int
-auth_sia_password(char *user, char *pass)
+sys_auth_passwd(Authctxt *authctxt, const char *pass)
 {
        int ret;
        SIAENTITY *ent = NULL;
        const char *host;
 
-       host = get_canonical_hostname(options.reverse_mapping_check);
+       host = get_canonical_hostname(options.use_dns);
 
-       if (!user || !pass)
-               return(0);
+       if (!authctxt->user || pass == NULL || pass[0] == '\0')
+               return (0);
 
-       if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, NULL, 0,
-           NULL) != SIASUCCESS)
-               return(0);
+       if (sia_ses_init(&ent, saved_argc, saved_argv, host, authctxt->user,
+           NULL, 0, NULL) != SIASUCCESS)
+               return (0);
 
        if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {
-               error("couldn't authenticate %s from %s", user, host);
+               error("Couldn't authenticate %s from %s",
+                   authctxt->user, host);
                if (ret & SIASTOP)
                        sia_ses_release(&ent);
-               return(0);
+
+               return (0);
        }
 
        sia_ses_release(&ent);
 
-       return(1);
+       return (1);
 }
 
 void
-session_setup_sia(char *user, char *tty)
+session_setup_sia(struct passwd *pw, char *tty)
 {
-       int ret;
-       struct passwd *pw;
        SIAENTITY *ent = NULL;
        const char *host;
 
-       host = get_canonical_hostname (options.reverse_mapping_check);
+       host = get_canonical_hostname(options.use_dns);
 
-       if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
-           NULL) != SIASUCCESS)
+       if (sia_ses_init(&ent, saved_argc, saved_argv, host, pw->pw_name,
+           tty, 0, NULL) != SIASUCCESS)
                fatal("sia_ses_init failed");
 
-       if ((pw = getpwnam(user)) == NULL) {
-               sia_ses_release(&ent);
-               fatal("getpwnam(%s) failed: %s", user, strerror(errno));
-       }
        if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
                sia_ses_release(&ent);
                fatal("sia_make_entity_pwd failed");
@@ -75,22 +98,17 @@ session_setup_sia(char *user, char *tty)
 
        ent->authtype = SIA_A_NONE;
        if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS)
-               fatal("couldn't establish session for %s from %s", user,
-                   host);
-
-       if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
-               sia_ses_release(&ent);
-               fatal("setpriority failed: %s", strerror (errno));
-       }
+               fatal("Couldn't establish session for %s from %s",
+                   pw->pw_name, host);
 
        if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS)
-               fatal("couldn't launch session for %s from %s", user, host);
-       
+               fatal("Couldn't launch session for %s from %s",
+                   pw->pw_name, host);
+
        sia_ses_release(&ent);
 
-       if (setreuid(geteuid(), geteuid()) < 0)
-               fatal("setreuid failed: %s", strerror (errno));
+       setuid(0);
+       permanently_set_uid(pw);
 }
 
 #endif /* HAVE_OSF_SIA */
-