917 Make TCP's iss_incr a tunable

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2011, Joyent Inc. All rights reserved.
   */
  /* Copyright (c) 1990 Mentat Inc. */
  
  #include <inet/ip.h>
  #include <inet/tcp_impl.h>
*** 470,479 ****
--- 471,485 ----
              tcp_listener_conf_add, NULL, {0}, {0} },
  
          { "_listener_limit_conf_del", MOD_PROTO_TCP,
              tcp_listener_conf_del, NULL, {0}, {0} },
  
+         { "_iss_incr", MOD_PROTO_TCP,
+             mod_set_uint32, mod_get_uint32,
+             {1, ISS_INCR, ISS_INCR},
+             {ISS_INCR} },
+ 
          { "?", MOD_PROTO_TCP, NULL, mod_get_allprop, {0}, {0} },
  
          { NULL, 0, NULL, NULL, {0}, {0} }
  };