*
*/
#include "includes.h"
+#include "auth.h"
#include "ssh.h"
#include "log.h"
#include "servconf.h"
#include "canohost.h"
#include "xmalloc.h"
+#include "buffer.h"
#ifdef _AIX
#include "port-aix.h"
extern ServerOptions options;
+extern Buffer loginmsg;
+
+# ifdef HAVE_SETAUTHDB
+static char old_registry[REGISTRY_SIZE] = "";
+# endif
/*
* AIX has a "usrinfo" area where logname and other stuff is stored -
xfree(cp);
}
-#ifdef WITH_AIXAUTHENTICATE
+# ifdef WITH_AIXAUTHENTICATE
/*
* Remove embedded newlines in string (if any).
* Used before logging messages returned by AIX authentication functions
if (*--p == ' ')
*p = '\0';
}
-#endif /* WITH_AIXAUTHENTICATE */
+
+/*
+ * Do authentication via AIX's authenticate routine. We loop until the
+ * reenter parameter is 0, but normally authenticate is called only once.
+ *
+ * Note: this function returns 1 on success, whereas AIX's authenticate()
+ * returns 0.
+ */
+int
+sys_auth_passwd(Authctxt *ctxt, const char *password)
+{
+ char *authmsg = NULL, *host, *msg, *name = ctxt->pw->pw_name;
+ int authsuccess = 0, expired, reenter, result;
+
+ do {
+ result = authenticate((char *)name, (char *)password, &reenter,
+ &authmsg);
+ aix_remove_embedded_newlines(authmsg);
+ debug3("AIX/authenticate result %d, msg %.100s", result,
+ authmsg);
+ } while (reenter);
+
+ if (result == 0) {
+ authsuccess = 1;
+
+ host = (char *)get_canonical_hostname(options.use_dns);
+
+ /*
+ * Record successful login. We don't have a pty yet, so just
+ * label the line as "ssh"
+ */
+ aix_setauthdb(name);
+ if (loginsuccess((char *)name, (char *)host, "ssh", &msg) == 0) {
+ if (msg != NULL) {
+ debug("%s: msg %s", __func__, msg);
+ buffer_append(&loginmsg, msg, strlen(msg));
+ xfree(msg);
+ }
+ }
+
+ /*
+ * Check if the user's password is expired.
+ */
+ expired = passwdexpired(name, &msg);
+ if (msg && *msg) {
+ buffer_append(&loginmsg, msg, strlen(msg));
+ aix_remove_embedded_newlines(msg);
+ }
+ debug3("AIX/passwdexpired returned %d msg %.100s", expired, msg);
+
+ switch (expired) {
+ case 0: /* password not expired */
+ break;
+ case 1: /* expired, password change required */
+ ctxt->force_pwchange = 1;
+ disable_forwarding();
+ break;
+ default: /* user can't change(2) or other error (-1) */
+ logit("Password can't be changed for user %s: %.100s",
+ name, msg);
+ if (msg)
+ xfree(msg);
+ authsuccess = 0;
+ }
+
+ aix_restoreauthdb();
+ }
+
+ if (authmsg != NULL)
+ xfree(authmsg);
+
+ return authsuccess;
+}
-# ifdef CUSTOM_FAILED_LOGIN
+# ifdef CUSTOM_FAILED_LOGIN
/*
* record_failed_login: generic "login failed" interface function
*/
void
record_failed_login(const char *user, const char *ttyname)
{
- char *hostname = get_canonical_hostname(options.use_dns);
+ char *hostname = (char *)get_canonical_hostname(options.use_dns);
if (geteuid() != 0)
return;
aix_setauthdb(user);
-# ifdef AIX_LOGINFAILED_4ARG
+# ifdef AIX_LOGINFAILED_4ARG
loginfailed((char *)user, hostname, (char *)ttyname, AUDIT_FAIL_AUTH);
-# else
+# else
loginfailed((char *)user, hostname, (char *)ttyname);
-# endif
+# endif
+ aix_restoreauthdb();
}
+# endif /* CUSTOM_FAILED_LOGIN */
/*
* If we have setauthdb, retrieve the password registry for the user's
- * account then feed it to setauthdb. This may load registry-specific method
- * code. If we don't have setauthdb or have already called it this is a no-op.
+ * account then feed it to setauthdb. This will mean that subsequent AIX auth
+ * functions will only use the specified loadable module. If we don't have
+ * setauthdb this is a no-op.
*/
void
aix_setauthdb(const char *user)
{
# ifdef HAVE_SETAUTHDB
- static char *registry = NULL;
-
- if (registry != NULL) /* have already done setauthdb */
- return;
+ char *registry;
if (setuserdb(S_READ) == -1) {
debug3("%s: Could not open userdb to read", __func__);
}
if (getuserattr((char *)user, S_REGISTRY, ®istry, SEC_CHAR) == 0) {
- if (setauthdb(registry, NULL) == 0)
- debug3("%s: AIX/setauthdb set registry %s", __func__,
- registry);
+ if (setauthdb(registry, old_registry) == 0)
+ debug3("AIX/setauthdb set registry '%s'", registry);
else
- debug3("%s: AIX/setauthdb set registry %s failed: %s",
- __func__, registry, strerror(errno));
+ debug3("AIX/setauthdb set registry '%s' failed: %s",
+ registry, strerror(errno));
} else
debug3("%s: Could not read S_REGISTRY for user: %s", __func__,
strerror(errno));
enduserdb();
-# endif
+# endif /* HAVE_SETAUTHDB */
}
-# endif /* CUSTOM_FAILED_LOGIN */
-#endif /* _AIX */
+/*
+ * Restore the user's registry settings from old_registry.
+ * Note that if the first aix_setauthdb fails, setauthdb("") is still safe
+ * (it restores the system default behaviour). If we don't have setauthdb,
+ * this is a no-op.
+ */
+void
+aix_restoreauthdb(void)
+{
+# ifdef HAVE_SETAUTHDB
+ if (setauthdb(old_registry, NULL) == 0)
+ debug3("%s: restoring old registry '%s'", __func__,
+ old_registry);
+ else
+ debug3("%s: failed to restore old registry %s", __func__,
+ old_registry);
+# endif /* HAVE_SETAUTHDB */
+}
+
+# endif /* WITH_AIXAUTHENTICATE */
+
+#endif /* _AIX */
andersk / gssapi-openssh.git / blobdiff