first few files of NRL ipv6. This NRL release was officially exported

to me by US DOD officials, with the crypto already removed.

1 files changed, 387 insertions, 0 deletions

diff --git a/sys/netinet6/in6_proto.c b/sys/netinet6/in6_proto.c
new file mode 100644
index 00000000000..a4222730caa
--- /dev/null
+++ b/sys/netinet6/in6_proto.c
@@ -0,0 +1,387 @@
+/*
+%%% copyright-nrl-95
+This software is Copyright 1995-1998 by Randall Atkinson, Ronald Lee,
+Daniel McDonald, Bao Phan, and Chris Winters. All Rights Reserved. All
+rights under this copyright have been assigned to the US Naval Research
+Laboratory (NRL). The NRL Copyright Notice and License Agreement Version
+1.1 (January 17, 1995) applies to this software.
+You should have received a copy of the license with this software. If you
+didn't get a copy, you may request one from <license@ipv6.nrl.navy.mil>.
+
+*/
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/protosw.h>
+#include <sys/kernel.h>
+#include <sys/domain.h>
+#include <sys/mbuf.h>
+
+#include <net/if.h>
+#include <net/route.h>
+#include <net/radix.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/in_pcb.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+
+#include <netinet/tcp.h>
+#include <netinet/tcp_fsm.h>
+#include <netinet/tcp_seq.h>
+#include <netinet/tcp_timer.h>
+#include <netinet/tcpip.h>
+#if __FreeBSD__ && defined(_NETINET_IN_PCB_H_)
+#undef _NETINET_IN_PCB_H_
+#include <netinet/tcp_var.h>
+#define _NETINET_IN_PCB_H_
+#else /* __FreeBSD__ */
+#include <netinet/tcp_var.h>
+#endif /* __FreeBSD__ */
+#include <netinet/tcpip.h>
+#include <netinet/tcp_debug.h>
+
+#include <netinet6/in6.h>
+#include <netinet6/in6_var.h>
+#include <netinet6/ipv6.h>
+#include <netinet6/ipv6_var.h>
+#include <netinet6/ipv6_icmp.h>
+
+#if defined(IPSEC) || defined(NRL_IPSEC)
+#include <netsec/ipsec.h>
+#endif /* defined(IPSEC) || defined(NRL_IPSEC) */
+
+#if __FreeBSD__
+#include <sys/sysctl.h>
+#endif /* __FreeBSD__ */
+
+extern struct domain inet6domain;
+
+#define CAST (void *)
+
+#if !__FreeBSD__
+struct protosw inet6sw[] = {
+/* normal protocol switch */
+  {
+    0, &inet6domain, 0, 0,    /* NOTE:  This 0 is the same as IPPROTO_HOPOPTS,
+				 but we specially demux IPPROTO_HOPOPTS
+				 in ipv6_input(). */
+    CAST ipv6_hop, CAST ipv6_output, 0, 0, /* Watch for hop-by-hop input! */
+    0,
+    ipv6_init, 0, ipv6_slowtimo, ipv6_drain, ipv6_sysctl
+  },
+
+  /* ICMPv6 entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_icmp_input, CAST ipv6_icmp_output, 0, ripv6_ctloutput,
+    ipv6_icmp_usrreq,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, ipv6_icmp_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+  /* IPv6-in-IPv6 tunnel entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    ripv6_usrreq,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, ipv6_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+  /* IPv4-in-IPv6 tunnel entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR,
+    CAST ipv4_input, 0, 0, 0,
+    0,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, ip_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+  /* Fragment entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_reasm, 0, 0, 0,
+    0,
+    0, 0, 0, 0, 0
+  },
+
+
+  /* UDP entry */
+
+  /*
+   * Eventually, that ipv6_ctloutput() will have to be replaced with a
+   * udp_ctloutput(), which knows whether or not to redirect things down to
+   * IP or IPv6 appropriately.
+   */
+
+  {
+    SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
+    CAST udp_input, 0, CAST udp_ctlinput, ipv6_ctloutput,
+    udp_usrreq,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, udp_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+  /* TCP entry */
+
+  {
+    SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD,
+    CAST tcp_input, 0, CAST tcp_ctlinput, tcp_ctloutput,
+    tcp_usrreq,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, tcp_sysctl /* init, fasttimo, etc. in v4 protosw already! */
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0  /* init, fasttimo, etc. in v4 protosw already! */
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+#if defined(IPSEC) || defined(NRL_IPSEC)
+  /* IPv6 & IPv4 Authentication Header */
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
+    CAST ipsec_ah_input, 0, 0, 0,
+    0,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, ipsec_ah_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+
+#ifdef IPSEC_ESP
+  /* IPv6 & IPv4 Encapsulating Security Payload Header */
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
+    CAST ipsec_esp_input, 0, 0, 0,
+    0,
+#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
+    0, 0, 0, 0, ipsec_esp_sysctl
+#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+    0, 0, 0, 0, 0
+#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
+  },
+#endif /* IPSEC_ESP */
+#endif /* defined(IPSEC) || defined(NRL_IPSEC) */
+
+  /* Unknown header. */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
+    CAST ripv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    ripv6_usrreq,
+    0,0,0,0,0
+  },
+
+  /* Raw wildcard */
+  {
+    SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR,
+    CAST ripv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    ripv6_usrreq,
+    ripv6_init,0,0,0,0
+  },
+};
+#else /* !__FreeBSD__ */
+extern struct pr_usrreqs nousrreqs;
+struct protosw inet6sw[] = {
+  {
+    0, &inet6domain, 0, 0,    /* NOTE:  This 0 is the same as IPPROTO_HOPOPTS,
+				 but we specially demux IPPROTO_HOPOPTS
+				 in ipv6_input(). */
+    CAST ipv6_hop, CAST ipv6_output, 0, 0, /* Watch for hop-by-hop input! */
+    0,
+    ipv6_init, 0, ipv6_slowtimo, ipv6_drain, 
+    &nousrreqs
+  },
+
+  /* ICMPv6 entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_icmp_input, CAST ipv6_icmp_output, 0, CAST ripv6_ctloutput,
+    0,
+    0, 0, 0, 0,
+    &ipv6_icmp_usrreqs,
+  },
+
+  /* IPv6-in-IPv6 tunnel entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    0,
+    0, 0, 0, 0,
+    &ripv6_usrreqs
+  },
+
+  /* IPv4-in-IPv6 tunnel entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR,
+    CAST ipv4_input, 0, 0, 0,
+    0,
+    0, 0, 0, 0,
+    &nousrreqs
+  },
+
+  /* Fragment entry */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT, PR_ATOMIC|PR_ADDR,
+    CAST ipv6_reasm, 0, 0, 0,
+    0,
+    0, 0, 0, 0,
+    &nousrreqs
+  },
+
+
+  /* UDP entry */
+
+  /*
+   * Eventually, that ipv6_ctloutput() will have to be replaced with a
+   * udp_ctloutput(), which knows whether or not to redirect things down to
+   * IP or IPv6 appropriately.
+   */
+
+  {
+    SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
+    CAST udp_input, 0, CAST udp_ctlinput, ipv6_ctloutput,
+    0,
+    udp_init, 0, 0, 0,
+    &udp_usrreqs
+  },
+
+  /* TCP entry */
+
+  {
+    SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD,
+    CAST tcp_input, 0, CAST tcp_ctlinput, tcp_ctloutput,
+    0,
+    tcp_init,	tcp_fasttimo,	tcp_slowtimo,	tcp_drain, 
+    &tcp_usrreqs,
+  },
+
+#if defined(IPSEC) || defined(NRL_IPSEC)
+  /* IPv6 & IPv4 Authentication Header */
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
+    CAST ipsec_ah_input, 0, 0, 0,
+    0,
+    0, 0, 0, 0,
+    &nousrreqs
+  },
+
+#ifdef IPSEC_ESP
+  /* IPv6 & IPv4 Encapsulating Security Payload Header */
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
+    CAST ipsec_esp_input, 0, 0, 0,
+    0,
+    0, 0, 0, 0,
+    &nousrreqs
+  },
+#endif /* IPSEC_ESP */
+#endif /* defined(IPSEC) || defined(NRL_IPSEC) */
+
+  /* Unknown header. */
+
+  {
+    SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
+    CAST ripv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    0,
+    0,0,0,0,
+    &ripv6_usrreqs
+  },
+
+  /* Raw wildcard */
+  {
+    SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR,
+    CAST ripv6_input, CAST ripv6_output, 0, ripv6_ctloutput,
+    0,
+    ripv6_init,0,0,0,
+    &ripv6_usrreqs,
+  },
+};
+
+#endif /* !__FreeBSD__ */
+
+#if !__FreeBSD__
+struct domain inet6domain =
+{
+  PF_INET6, "IPv6", 0, 0, 0,
+  inet6sw, &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0,
+  /*
+   * FreeBSD's IPv4 replaces rn_inithead() with an IPv4-specific function.
+   * Our IPv6 uses the ifa->ifa_rtrequest() function pointer to intercept
+   * rtrequest()s.  The consequence of this is that we use the generic
+   * rn_inithead().
+   */
+  rn_inithead, 64, sizeof(struct sockaddr_in6)
+};
+#else /* !__FreeBSD__ */
+struct domain inet6domain =
+{
+  PF_INET6, "IPv6", 0, 0, 0,
+  inet6sw, &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0,
+  /*
+   * FreeBSD's IPv4 replaces rn_inithead() with an IPv4-specific function.
+   * Our IPv6 uses the ifa->ifa_rtrequest() function pointer to intercept
+   * rtrequest()s.  The consequence of this is that we use the generic
+   * rn_inithead().
+   */
+  rn_inithead, 64, sizeof(struct sockaddr_in6)
+};
+
+DOMAIN_SET(inet6);
+#endif /* !__FreeBSD__ */
+
+/* Eventually, make these go away -- if you want to be a router, twiddle the
+   sysctls before bringing up your interfaces */
+
+#ifndef IPV6FORWARDING
+#ifdef IPV6GATEWAY
+#define IPV6FORWARDING 1
+#else
+#define IPV6FORWARDING 0
+#endif /* IPV6GATEWAY */
+#endif /* IPV6FORWARDING */
+
+#ifndef IPV6RSOLICIT
+#if IPV6FORWARDING
+#define IPV6RSOLICIT 0
+#else /* IPV6FORWARDING */
+#define IPV6RSOLICIT 1
+#endif /* IPV6FORWARDING */
+#endif /* IPV6RSOLICIT */
+
+#ifndef	IFQMAXLEN
+#define	IFQMAXLEN	IFQ_MAXLEN
+#endif
+
+int ipv6forwarding = IPV6FORWARDING;
+int ipv6rsolicit = IPV6RSOLICIT;
+int ipv6_defhoplmt = MAXHOPLIMIT;
+int ipv6qmaxlen = IFQMAXLEN;
+
+#if __FreeBSD__
+SYSCTL_NODE(_net_inet, IPPROTO_IPV6,      ipv6,     CTLFLAG_RW, 0,  "IPV6");
+SYSCTL_NODE(_net_inet, IPPROTO_ICMPV6,    icmpv6,   CTLFLAG_RW, 0,  "ICMPV6");
+#endif /* __FreeBSD__ */