Fold in the changes to support IP multicasting, from Jim Lowe et al.

[unix-history] / sys / netinet / in.h

diff --git a/sys/netinet/in.h b/sys/netinet/in.h
index 13499d8..2f3d17d 100644 (file)
--- a/sys/netinet/in.h
+++ b/sys/netinet/in.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *     from: @(#)in.h  7.11 (Berkeley) 4/20/91
  * SUCH DAMAGE.
  *
  *     from: @(#)in.h  7.11 (Berkeley) 4/20/91

- *     $Id: in.h,v 1.3 1993/10/16 18:25:58 rgrimes Exp $
+ *     $Id: in.h,v 1.4 1993/12/19 00:52:35 wollman Exp $

  */
 
 #ifndef _NETINET_IN_H_
  */
 
 #ifndef _NETINET_IN_H_


@@ -47,6 +47,7 @@
  */
 #define        IPPROTO_IP              0               /* dummy for IP */
 #define        IPPROTO_ICMP            1               /* control message protocol */
  */
 #define        IPPROTO_IP              0               /* dummy for IP */
 #define        IPPROTO_ICMP            1               /* control message protocol */

+#define        IPPROTO_IGMP            2               /* ground control protocol */

 #define        IPPROTO_GGP             3               /* gateway^2 (deprecated) */
 #define        IPPROTO_TCP             6               /* tcp */
 #define        IPPROTO_EGP             8               /* exterior gateway protocol */
 #define        IPPROTO_GGP             3               /* gateway^2 (deprecated) */
 #define        IPPROTO_TCP             6               /* tcp */
 #define        IPPROTO_EGP             8               /* exterior gateway protocol */


@@ -100,19 +101,36 @@ struct in_addr {
 #define        IN_CLASSC_HOST          0x000000ffUL
 
 #define        IN_CLASSD(i)            (((u_long)(i) & 0xf0000000UL) == 0xe0000000UL)
 #define        IN_CLASSC_HOST          0x000000ffUL
 
 #define        IN_CLASSD(i)            (((u_long)(i) & 0xf0000000UL) == 0xe0000000UL)

+#define        IN_CLASSD_NET           0xf0000000UL    /* These ones aren't really */
+#define        IN_CLASSD_NSHIFT        28              /* net and host fields, bit */
+#define        IN_CLASSD_HOST          0x0fffffffUL    /* routing needn't know. */

 #define        IN_MULTICAST(i)         IN_CLASSD(i)
 
 #define        IN_EXPERIMENTAL(i)      (((u_long)(i) & 0xe0000000UL) == 0xe0000000UL)
 #define        IN_BADCLASS(i)          (((u_long)(i) & 0xf0000000UL) == 0xf0000000UL)
 
 #define        INADDR_ANY              0x00000000UL
 #define        IN_MULTICAST(i)         IN_CLASSD(i)
 
 #define        IN_EXPERIMENTAL(i)      (((u_long)(i) & 0xe0000000UL) == 0xe0000000UL)
 #define        IN_BADCLASS(i)          (((u_long)(i) & 0xf0000000UL) == 0xf0000000UL)
 
 #define        INADDR_ANY              0x00000000UL

+#ifndef INADDR_LOOPBACK
+#define        INADDR_LOOPBACK         0x7f000001UL
+#endif

 #define        INADDR_BROADCAST        0xffffffffUL    /* must be masked */
 #ifndef KERNEL
 #define        INADDR_NONE             0xffffffffUL            /* -1 return */
 #endif
 
 #define        INADDR_BROADCAST        0xffffffffUL    /* must be masked */
 #ifndef KERNEL
 #define        INADDR_NONE             0xffffffffUL            /* -1 return */
 #endif
 

+#define        INADDR_UNSPEC_GROUP     0xe0000000UL    /* 224.0.0.0 */
+#define        INADDR_ALLHOSTS_GROUP   0xe0000001UL    /* 244.0.0.1 */
+#define        INADDR_MAX_LOCAL_GROUP  0xe00000ffUL    /* 244.0.0.255 */
+

 #define        IN_LOOPBACKNET          127                     /* official! */
 
 #define        IN_LOOPBACKNET          127                     /* official! */
 

+/*
+ * Define a macro to stuff the loopback address into an Internet address.
+ */
+#define        IN_SET_LOOPBACK_ADDR(a) { \
+       (a)->sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
+       (a)->sin_family = AF_INET; }
+

 /*
  * Socket address, internet style.
  */
 /*
  * Socket address, internet style.
  */


@@ -141,6 +159,20 @@ struct ip_opts {
  * First word of comment is data type; bool is stored in int.
  */
 #define        IP_OPTIONS      1       /* buf/ip_opts; set/get IP per-packet options */
  * First word of comment is data type; bool is stored in int.
  */
 #define        IP_OPTIONS      1       /* buf/ip_opts; set/get IP per-packet options */

+#ifndef NO_VAT_COMPAT
+#define        IP_MULTICAST_IF 2       /* set/get IP multicast interfcae */
+#define        IP_MULTICAST_TTL 3      /* set/get IP multicast timetolive */
+#define        IP_MULTICAST_LOOP 4     /* set/get IP m'cast loopback */
+#define        IP_ADD_MEMBERSHIP 5     /* add an IP group membership */
+#define        IP_DROP_MEMBERSHIP 6    /* drop an IP group membership */
+#define        IP_HDRINCL      7       /* int; header is included with data (raw) */
+#define        IP_TOS          8       /* int; IP type of service and precedence */
+#define        IP_TTL          9       /* int; IP time to live */
+#define        IP_RECVOPTS     10      /* bool; receive all IP options w/datagram */
+#define        IP_RECVRETOPTS  11      /* bool; receive IP options for response */
+#define        IP_RECVDSTADDR  12      /* bool; receive IP dst addr w/datagram */
+#define        IP_RETOPTS      13      /* ip_opts; set/get IP per-packet options */
+#else

 #define        IP_HDRINCL      2       /* int; header is included with data (raw) */
 #define        IP_TOS          3       /* int; IP type of service and precedence */
 #define        IP_TTL          4       /* int; IP time to live */
 #define        IP_HDRINCL      2       /* int; header is included with data (raw) */
 #define        IP_TOS          3       /* int; IP type of service and precedence */
 #define        IP_TTL          4       /* int; IP time to live */


@@ -148,6 +180,24 @@ struct ip_opts {
 #define        IP_RECVRETOPTS  6       /* bool; receive IP options for response */
 #define        IP_RECVDSTADDR  7       /* bool; receive IP dst addr w/datagram */
 #define        IP_RETOPTS      8       /* ip_opts; set/get IP per-packet options */
 #define        IP_RECVRETOPTS  6       /* bool; receive IP options for response */
 #define        IP_RECVDSTADDR  7       /* bool; receive IP dst addr w/datagram */
 #define        IP_RETOPTS      8       /* ip_opts; set/get IP per-packet options */

+#define        IP_MULTICAST_IF 9       /* set/get IP multicast interfcae */
+#define        IP_MULTICAST_TTL 10     /* set/get IP multicast timetolive */
+#define        IP_MULTICAST_LOOP 11    /* set/get IP m'cast loopback */
+#define        IP_ADD_MEMBERSHIP 12    /* add an IP group membership */
+#define        IP_DROP_MEMBERSHIP 13   /* drop an IP group membership */
+#endif
+
+#define        IP_DEFAULT_MULTICAST_TTL 1      /* normally limit m'casts to 1 hop */
+#define        IP_DEFAULT_MULTICAST_LOOP 1     /* normally hear sens if a member */
+#define        IP_MAX_MEMBERSHIPS      20      /* per socket; must fit in one mbuf */
+
+/*
+ * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
+ */
+struct ip_mreq {
+       struct in_addr  imr_multiaddr;  /* IP multicast address of group */
+       struct in_addr  imr_interface;  /* local IP address of interface */
+} ;

 
 #ifdef KERNEL
 /* From in.c: */
 
 #ifdef KERNEL
 /* From in.c: */