13175 Add support for IP_RECVTOS
13182 CMSG_ macros should have man pages
Change-ID: I784aa36cfd3c17e3cccbf1fd329fa7e69b663ef9

*** 1,10 ****
--- 1,11 ----
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   *
   * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+  * Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
   */
  /*
   * Copyright (c) 1982, 1986 Regents of the University of California.
   * All rights reserved.
   *
*** 903,912 ****
--- 904,914 ----
  #define IP_RECVDSTADDR  0x7     /* int; receive IP dst addr w/datagram */
  #define IP_RETOPTS      0x8     /* ip_opts; set/get IP per-packet options */
  #define IP_RECVIF       0x9     /* int; receive the inbound interface index */
  #define IP_RECVSLLA     0xa     /* sockaddr_dl; get source link layer address */
  #define IP_RECVTTL      0xb     /* uint8_t; get TTL for inbound packet */
+ #define IP_RECVTOS      0xc     /* uint8_t; get TOS for inbound packet */
  
  #define IP_MULTICAST_IF         0x10    /* set/get IP multicast interface  */
  #define IP_MULTICAST_TTL        0x11    /* set/get IP multicast timetolive */
  #define IP_MULTICAST_LOOP       0x12    /* set/get IP multicast loopback   */
  #define IP_ADD_MEMBERSHIP       0x13    /* add  an IP group membership     */
*** 1244,1254 ****
   * the receipt of both headers.
   */
  #define IPV6_RECVRTHDRDSTOPTS   0x17
  
  #define IPV6_CHECKSUM           0x18    /* Control checksum on raw sockets */
! #define IPV6_RECVTCLASS         0x19    /* enable/disable IPV6_CLASS */
  #define IPV6_USE_MIN_MTU        0x20    /* send packets with minimum MTU */
  #define IPV6_DONTFRAG           0x21    /* don't fragment packets */
  #define IPV6_SEC_OPT            0x22    /* Used to set IPSEC options */
  #define IPV6_SRC_PREFERENCES    0x23    /* Control socket's src addr select */
  #define IPV6_RECVPATHMTU        0x24    /* receive PMTU info */
--- 1246,1256 ----
   * the receipt of both headers.
   */
  #define IPV6_RECVRTHDRDSTOPTS   0x17
  
  #define IPV6_CHECKSUM           0x18    /* Control checksum on raw sockets */
! #define IPV6_RECVTCLASS         0x19    /* enable/disable IPV6_TCLASS */
  #define IPV6_USE_MIN_MTU        0x20    /* send packets with minimum MTU */
  #define IPV6_DONTFRAG           0x21    /* don't fragment packets */
  #define IPV6_SEC_OPT            0x22    /* Used to set IPSEC options */
  #define IPV6_SRC_PREFERENCES    0x23    /* Control socket's src addr select */
  #define IPV6_RECVPATHMTU        0x24    /* receive PMTU info */