- (djm) Split out and improve OSF SIA auth code. Patch from Chris Adams

   <cmadams@hiwaay.net> with a little modification and KNF.

1 files changed, 96 insertions, 0 deletions

diff --git a/auth-sia.c b/auth-sia.c
new file mode 100644
index 000000000..6fece555d
--- /dev/null
+++ b/auth-sia.c
@@ -0,0 +1,96 @@
+#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>
+#include <signal.h>
+#include <setjmp.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <string.h>
+
+extern ServerOptions options;
+extern int saved_argc;
+extern char **saved_argv;
+
+extern int errno;
+
+int
+auth_sia_password(char *user, char *pass)
+{
+        int ret;
+        SIAENTITY *ent = NULL;
+        const char *host;
+
+        host = get_canonical_hostname(options.reverse_mapping_check);
+
+        if (!user || !pass)
+                return(0);
+
+        if (sia_ses_init(&ent, saved_argc, saved_argv, host, 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);
+                if (ret & SIASTOP)
+                        sia_ses_release(&ent);
+                return(0);
+        }
+
+        sia_ses_release(&ent);
+
+        return(1);
+}
+
+void
+session_setup_sia(char *user, char *tty)
+{
+        int ret;
+        struct passwd *pw;
+        SIAENTITY *ent = NULL;
+        const char *host;
+
+        host = get_canonical_hostname (options.reverse_mapping_check);
+
+        if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, 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");
+        }
+
+        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));
+        }
+
+        if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS)
+                fatal("couldn't launch session for %s from %s", user, host);
+        
+        sia_ses_release(&ent);
+
+        if (setreuid(geteuid(), geteuid()) < 0)
+                fatal("setreuid failed: %s", strerror (errno));
+}
+
+#endif /* HAVE_OSF_SIA */
+