-/* ip_var.h 4.11 83/07/06 */
+/*
+ * Copyright (c) 1982, 1986 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of California at Berkeley. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ *
+ * @(#)ip_var.h 7.4 (Berkeley) %G%
+ */
/*
* Overlay for ip header used by other protocols (tcp, udp).
* Note: ipf_next must be at same offset as ipq_next above
*/
struct ipasfrag {
-#ifdef vax
+#if BYTE_ORDER == LITTLE_ENDIAN
u_char ip_hl:4,
ip_v:4;
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+ u_char ip_v:4,
+ ip_hl:4;
#endif
u_char ipf_mff; /* copied from (ip_off&IP_MF) */
short ip_len;
struct ipasfrag *ipf_prev; /* previous fragment */
};
+/*
+ * Structure stored in mbuf in inpcb.ip_options
+ * and passed to ip_output when ip options are in use.
+ * The actual length of the options (including ipopt_dst)
+ * is in m_len.
+ */
+#define MAX_IPOPTLEN 40
+
+struct ipoption {
+ struct in_addr ipopt_dst; /* first-hop dst if source routed */
+ char ipopt_list[MAX_IPOPTLEN]; /* options proper */
+};
+
struct ipstat {
- int ips_badsum; /* checksum bad */
- int ips_tooshort; /* packet too short */
- int ips_toosmall; /* not enough data */
- int ips_badhlen; /* ip header length < data size */
- int ips_badlen; /* ip length < ip header length */
+ long ips_total; /* total packets received */
+ long ips_badsum; /* checksum bad */
+ long ips_tooshort; /* packet too short */
+ long ips_toosmall; /* not enough data */
+ long ips_badhlen; /* ip header length < data size */
+ long ips_badlen; /* ip length < ip header length */
+ long ips_fragments; /* fragments received */
+ long ips_fragdropped; /* frags dropped (dups, out of space) */
+ long ips_fragtimeout; /* fragments timed out */
+ long ips_forward; /* packets forwarded */
+ long ips_cantforward; /* packets rcvd for unreachable dest */
+ long ips_redirectsent; /* packets forwarded on same net */
};
#ifdef KERNEL
/* flags passed to ip_output as last parameter */
-#define IP_FORWARDING 0x1 /* most of ip header exists */
-#define IP_ROUTETOIF 0x10 /* same as SO_DONTROUTE */
-#define IP_ALLOWBROADCAST SS_PRIV /* can send broadcast packets */
+#define IP_FORWARDING 0x1 /* most of ip header exists */
+#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
+#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
struct ipstat ipstat;
struct ipq ipq; /* ip reass. queue */
u_short ip_id; /* ip packet ctr, for ids */
+
+struct mbuf *ip_srcroute();
#endif