/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1982, 1986, 1993
#include <sys/protosw.h>
#include <sys/queue.h>
#include <sys/sysctl.h>
+#include <sys/mbuf.h>
+
+#include <kern/debug.h>
#include <net/if.h>
#include <net/route.h>
+#include <net/kpi_protocol.h>
#include <netinet/in.h>
+#include <netinet/in_var.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/ip_encap.h>
+#include <netinet/ip_divert.h>
/*
#if IPSEC_ESP
#include <netinet6/esp.h>
#endif
-#include <netinet6/ipcomp.h>
#endif /* IPSEC */
-#if IPXIP
-#include <netipx/ipx_ip.h>
-#endif
+static void in_dinit(struct domain *);
+static void ip_proto_input(protocol_family_t, mbuf_t);
-extern struct domain inetdomain;
-static struct pr_usrreqs nousrreqs;
-extern struct pr_usrreqs icmp_dgram_usrreqs;
+extern struct domain inetdomain_s;
+static struct pr_usrreqs nousrreqs;
+extern struct pr_usrreqs icmp_dgram_usrreqs;
extern int icmp_dgram_ctloutput(struct socket *, struct sockopt *);
-struct protosw inetsw[] = {
-{ 0, &inetdomain, 0, 0,
- 0, 0, 0, 0,
- 0,
- ip_init, 0, ip_slowtimo, ip_drain,
- 0, &nousrreqs
-},
-{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
- udp_input, 0, udp_ctlinput, ip_ctloutput,
- 0,
- udp_init, 0, 0, 0,
- 0, &udp_usrreqs
-},
-{ SOCK_STREAM, &inetdomain, IPPROTO_TCP,
- PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
- tcp_input, 0, tcp_ctlinput, tcp_ctloutput,
- 0,
- tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain,
- 0, &tcp_usrreqs
-},
-{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
- rip_input, 0, rip_ctlinput, rip_ctloutput,
- 0,
- 0, 0, 0, 0,
- 0, &rip_usrreqs
-},
-{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- icmp_input, 0, 0, rip_ctloutput,
- 0,
- 0, 0, 0, 0,
- 0, &rip_usrreqs
-},
-{ SOCK_DGRAM, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- icmp_input, 0, 0, icmp_dgram_ctloutput,
- 0,
- 0, 0, 0, 0,
- 0, &icmp_dgram_usrreqs
-},
-{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- igmp_input, 0, 0, rip_ctloutput,
- 0,
- igmp_init, igmp_fasttimo, igmp_slowtimo, 0,
- 0, &rip_usrreqs
-},
-{ SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- rsvp_input, 0, 0, rip_ctloutput,
- 0,
- 0, 0, 0, 0,
- 0, &rip_usrreqs
-},
+struct domain *inetdomain = NULL;
+
+/* Thanks to PPP, this still needs to be exported */
+lck_mtx_t *inet_domain_mutex;
+
+static struct protosw inetsw[] = {
+ {
+ .pr_type = 0,
+ .pr_protocol = 0,
+ .pr_init = ip_init,
+ .pr_drain = ip_drain,
+ .pr_usrreqs = &nousrreqs,
+ },
+ {
+ .pr_type = SOCK_DGRAM,
+ .pr_protocol = IPPROTO_UDP,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK | PR_PCBLOCK |
+ PR_EVCONNINFO | PR_PRECONN_WRITE,
+ .pr_input = udp_input,
+ .pr_ctlinput = udp_ctlinput,
+ .pr_ctloutput = udp_ctloutput,
+ .pr_init = udp_init,
+ .pr_usrreqs = &udp_usrreqs,
+ .pr_lock = udp_lock,
+ .pr_unlock = udp_unlock,
+ .pr_getlock = udp_getlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_STREAM,
+ .pr_protocol = IPPROTO_TCP,
+ .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_PCBLOCK |
+ PR_PROTOLOCK | PR_DISPOSE | PR_EVCONNINFO |
+ PR_PRECONN_WRITE | PR_DATA_IDEMPOTENT,
+ .pr_input = tcp_input,
+ .pr_ctlinput = tcp_ctlinput,
+ .pr_ctloutput = tcp_ctloutput,
+ .pr_init = tcp_init,
+ .pr_drain = tcp_drain,
+ .pr_usrreqs = &tcp_usrreqs,
+ .pr_lock = tcp_lock,
+ .pr_unlock = tcp_unlock,
+ .pr_getlock = tcp_getlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_RAW,
+ .pr_flags = PR_ATOMIC | PR_ADDR,
+ .pr_input = rip_input,
+ .pr_ctlinput = rip_ctlinput,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_ICMP,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = icmp_input,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_DGRAM,
+ .pr_protocol = IPPROTO_ICMP,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = icmp_input,
+ .pr_ctloutput = icmp_dgram_ctloutput,
+ .pr_usrreqs = &icmp_dgram_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_IGMP,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = igmp_input,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_init = igmp_init,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_GRE,
+ .pr_flags = PR_ATOMIC | PR_ADDR,
+ .pr_input = gre_input,
+ .pr_ctlinput = rip_ctlinput,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
#if IPSEC
-{ SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
- ah4_input, 0, 0, 0,
- 0,
- 0, 0, 0, 0,
- 0, &nousrreqs
-},
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_AH,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK,
+ .pr_input = ah4_input,
+ .pr_usrreqs = &nousrreqs,
+ },
#if IPSEC_ESP
-{ SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
- esp4_input, 0, 0, 0,
- 0,
- 0, 0, 0, 0,
- 0, &nousrreqs
-},
-#endif
-{ SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
- ipcomp4_input, 0, 0, 0,
- 0,
- 0, 0, 0, 0,
- 0, &nousrreqs
-},
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_ESP,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK,
+ .pr_input = esp4_input,
+ .pr_usrreqs = &nousrreqs,
+ },
+#endif /* IPSEC_ESP */
#endif /* IPSEC */
-{ SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- encap4_input, 0, 0, rip_ctloutput,
- 0,
- encap_init, 0, 0, 0,
- 0, &rip_usrreqs
-},
-# if INET6
-{ SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- encap4_input, 0, 0, rip_ctloutput,
- 0,
- encap_init, 0, 0, 0,
- 0, &rip_usrreqs
-},
-#endif
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_IPV4,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = encap4_input,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_init = encap4_init,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+#if INET6
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_IPV6,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = encap4_input,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_init = encap4_init,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+#endif /* INET6 */
#if IPDIVERT
-{ SOCK_RAW, &inetdomain, IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR,
- div_input, 0, 0, ip_ctloutput,
- 0,
- div_init, 0, 0, 0,
- 0, &div_usrreqs,
-},
-#endif
-#if IPXIP
-{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- ipxip_input, 0, ipxip_ctlinput, 0,
- 0,
- 0, 0, 0, 0,
- 0, &rip_usrreqs
-},
-#endif
-#if NSIP
-{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
- idpip_input, 0, nsip_ctlinput, 0,
- 0,
- 0, 0, 0, 0,
- 0, &rip_usrreqs
-},
-#endif
- /* raw wildcard */
-{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR,
- rip_input, 0, 0, rip_ctloutput,
- 0,
- rip_init, 0, 0, 0,
- 0, &rip_usrreqs
-},
+ {
+ .pr_type = SOCK_RAW,
+ .pr_protocol = IPPROTO_DIVERT,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_PCBLOCK,
+ .pr_input = div_input,
+ .pr_ctloutput = ip_ctloutput,
+ .pr_init = div_init,
+ .pr_usrreqs = &div_usrreqs,
+ .pr_lock = div_lock,
+ .pr_unlock = div_unlock,
+ .pr_getlock = div_getlock,
+ },
+#endif /* IPDIVERT */
+/* raw wildcard */
+ {
+ .pr_type = SOCK_RAW,
+ .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR,
+ .pr_input = rip_input,
+ .pr_ctloutput = rip_ctloutput,
+ .pr_init = rip_init,
+ .pr_usrreqs = &rip_usrreqs,
+ .pr_unlock = rip_unlock,
+ .pr_update_last_owner = inp_update_last_owner,
+ .pr_copy_last_owner = inp_copy_last_owner,
+ },
+};
+
+static int in_proto_count = (sizeof(inetsw) / sizeof(struct protosw));
+
+struct domain inetdomain_s = {
+ .dom_family = PF_INET,
+ .dom_flags = DOM_REENTRANT,
+ .dom_name = "internet",
+ .dom_init = in_dinit,
+ .dom_rtattach = in_inithead,
+ .dom_rtoffset = 32,
+ .dom_maxrtkey = sizeof(struct sockaddr_in),
+ .dom_protohdrlen = sizeof(struct tcpiphdr),
};
-extern int in_inithead __P((void **, int));
+/* Initialize the PF_INET domain, and add in the pre-defined protos */
+void
+in_dinit(struct domain *dp)
+{
+ struct protosw *pr;
+ int i;
+ domain_unguard_t unguard;
+
+ VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
+ VERIFY(inetdomain == NULL);
+
+ inetdomain = dp;
-int in_proto_count = (sizeof (inetsw) / sizeof (struct protosw));
+ /*
+ * Verify that the maximum possible tcp/ip header will still
+ * fit in a small mbuf because m_pullup only puls into 256
+ * byte mbuf
+ */
+ _CASSERT((sizeof(struct tcpiphdr) + TCP_MAXOLEN) <= _MHLEN);
-extern void in_dinit(void);
-/* A routing init function, and a header size */
-struct domain inetdomain =
- { AF_INET, "internet", in_dinit, 0, 0,
- inetsw, 0,
- in_inithead, 32, sizeof(struct sockaddr_in),
- sizeof(struct tcpiphdr), 0
- };
+ /*
+ * Attach first, then initialize; ip_init() needs raw IP handler.
+ */
+ for (i = 0, pr = &inetsw[0]; i < in_proto_count; i++, pr++) {
+ net_add_proto(pr, dp, 0);
+ }
+ for (i = 0, pr = &inetsw[0]; i < in_proto_count; i++, pr++) {
+ net_init_proto(pr, dp);
+ }
-DOMAIN_SET(inet);
+ inet_domain_mutex = dp->dom_mtx;
-SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0,
- "Internet Family");
+ unguard = domain_unguard_deploy();
+ i = proto_register_input(PF_INET, ip_proto_input, NULL, 1);
+ if (i != 0) {
+ panic("%s: failed to register PF_INET protocol: %d\n",
+ __func__, i);
+ /* NOTREACHED */
+ }
+ domain_unguard_release(unguard);
+}
-SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP");
-SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP");
-SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP");
-SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP");
-SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP");
+static void
+ip_proto_input(protocol_family_t protocol, mbuf_t packet_list)
+{
+#pragma unused(protocol)
+
+ if (packet_list->m_nextpkt != NULL) {
+ ip_input_process_list(packet_list);
+ } else {
+ /*
+ * XXX remove this path if ip_input_process_list is proven
+ * to be stable and has minimum overhead on most platforms.
+ */
+ ip_input(packet_list);
+ }
+}
+
+SYSCTL_NODE(_net, PF_INET, inet,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "Internet Family");
+
+SYSCTL_NODE(_net_inet, IPPROTO_IP, ip,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IP");
+SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "ICMP");
+SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "UDP");
+SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "TCP");
+SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IGMP");
#if IPSEC
-SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC");
+SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IPSEC");
#endif /* IPSEC */
-SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW");
+SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "RAW");
#if IPDIVERT
-SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, div, CTLFLAG_RW, 0, "DIVERT");
-#endif
-
+SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, div,
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "DIVERT");
+#endif /* IPDIVERT */
projects / apple / xnu.git / blobdiff