/*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_OSREFERENCE_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.
*
- * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1982, 1986, 1993
* @(#)if_loop.c 8.1 (Berkeley) 6/10/93
* $FreeBSD: src/sys/net/if_loop.c,v 1.47.2.5 2001/07/03 11:01:41 ume Exp $
*/
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
/*
* Loopback interface driver for protocol testing and timing.
#include <netinet/in_var.h>
#endif
-#if IPX
-#include <netipx/ipx.h>
-#include <netipx/ipx_if.h>
-#endif
-
#if INET6
-#ifndef INET
+#if !INET
#include <netinet/in.h>
#endif
#include <netinet6/in6_var.h>
#include <net/bpfdesc.h>
#endif
+#if CONFIG_MACF_NET
+#include <security/mac_framework.h>
+#endif
+
#define NLOOP_ATTACHMENTS (NLOOP * 12)
struct lo_statics_str {
bpf_packet_func bpf_callback;
};
-void loopattach(void *dummy);
+void loopattach(void);
static struct lo_statics_str lo_statics[NLOOP];
int loopattach_done = 0; /* used to sync ip6_init2 loopback configuration */
#define LOMTU 16384
#endif
-struct ifnet loif[NLOOP];
-struct ifnet *lo_ifp = &loif[0];
+ifnet_t lo_ifp = NULL;
struct loopback_header {
- u_long protocol;
+ protocol_family_t protocol;
};
-void lo_reg_if_mods(void);
+static void lo_reg_if_mods(void);
/* Local forward declerations */
static errno_t
lo_add_proto(
- __unused struct ifnet *ifp,
- __unused u_long protocol_family,
- __unused struct ddesc_head_str *demux_desc_head)
+ __unused ifnet_t interface,
+ __unused protocol_family_t protocol_family,
+ __unused const struct ifnet_demux_desc *demux_array,
+ __unused u_int32_t demux_count)
{
return 0;
}
static int
lo_output(
- struct ifnet *ifp,
- struct mbuf *m)
+ ifnet_t ifp,
+ mbuf_t m_list)
{
+ mbuf_t m;
+
+ for (m = m_list; m; m = m->m_nextpkt) {
+ if ((m->m_flags & M_PKTHDR) == 0)
+ panic("lo_output: no HDR");
- if ((m->m_flags & M_PKTHDR) == 0)
- panic("lo_output: no HDR");
-
- /*
- * Don't overwrite the rcvif field if it is in use.
- * This is used to match multicast packets, sent looping
- * back, with the appropriate group record on input.
- */
- if (m->m_pkthdr.rcvif == NULL)
- m->m_pkthdr.rcvif = ifp;
-
- ifp->if_ibytes += m->m_pkthdr.len;
- ifp->if_obytes += m->m_pkthdr.len;
+ /*
+ * Don't overwrite the rcvif field if it is in use.
+ * This is used to match multicast packets, sent looping
+ * back, with the appropriate group record on input.
+ */
+ if (m->m_pkthdr.rcvif == NULL)
+ m->m_pkthdr.rcvif = ifp;
- ifp->if_opackets++;
- ifp->if_ipackets++;
+ ifp->if_ibytes += m->m_pkthdr.len;
+ ifp->if_obytes += m->m_pkthdr.len;
- m->m_pkthdr.header = mtod(m, char *);
- m->m_pkthdr.csum_data = 0xffff; /* loopback checksums are always OK */
- m->m_pkthdr.csum_flags = CSUM_DATA_VALID | CSUM_PSEUDO_HDR |
- CSUM_IP_CHECKED | CSUM_IP_VALID;
- m_adj(m, sizeof(struct loopback_header));
+ ifp->if_opackets++;
+ ifp->if_ipackets++;
-#if NBPFILTER > 0
- if (lo_statics[ifp->if_unit].bpf_mode != BPF_TAP_DISABLE) {
- struct mbuf m0, *n;
-
- n = m;
- if (ifp->if_bpf->bif_dlt == DLT_NULL) {
- struct loopback_header *header;
- /*
- * We need to prepend the address family as
- * a four byte field. Cons up a dummy header
- * to pacify bpf. This is safe because bpf
- * will only read from the mbuf (i.e., it won't
- * try to free it or keep a pointer a to it).
- */
- header = (struct loopback_header*)m->m_pkthdr.header;
- m0.m_next = m;
- m0.m_len = 4;
- m0.m_data = (char *)&header->protocol;
- n = &m0;
+ m->m_pkthdr.header = mtod(m, char *);
+ if (apple_hwcksum_tx != 0) {
+ /* loopback checksums are always OK */
+ m->m_pkthdr.csum_data = 0xffff;
+ m->m_pkthdr.csum_flags = CSUM_DATA_VALID | CSUM_PSEUDO_HDR |
+ CSUM_IP_CHECKED | CSUM_IP_VALID;
+ }
+ m_adj(m, sizeof(struct loopback_header));
+
+ {
+ /* We need to prepend the address family as a four byte field. */
+ u_int32_t protocol_family =
+ ((struct loopback_header*)m->m_pkthdr.header)->protocol;
+
+ bpf_tap_out(ifp, DLT_NULL, m, &protocol_family, sizeof(protocol_family));
}
-
- lo_statics[ifp->if_unit].bpf_callback(ifp, n);
}
-#endif
- return dlil_input(ifp, m, m);
+ return ifnet_input(ifp, m_list, NULL);
}
* (should?) be split into separate pre-output routines for each protocol.
*/
-static int
+static errno_t
lo_pre_output(
- __unused struct ifnet *ifp,
- u_long protocol_family,
- struct mbuf **m,
+ __unused ifnet_t ifp,
+ protocol_family_t protocol_family,
+ mbuf_t *m,
__unused const struct sockaddr *dst,
- caddr_t route,
- char *frame_type,
- __unused char *dst_addr)
+ void *route,
+ char *frame_type,
+ __unused char *dst_addr)
{
- register struct rtentry *rt = (struct rtentry *) route;
+ register struct rtentry *rt = route;
+
+ (*m)->m_flags |= M_LOOP;
if (((*m)->m_flags & M_PKTHDR) == 0)
panic("looutput no HDR");
return ((rt->rt_flags & RTF_HOST) ? EHOSTUNREACH : ENETUNREACH);
}
- *(u_long *)frame_type = protocol_family;
+ *(protocol_family_t*)frame_type = protocol_family;
return 0;
}
* lo_input - This should work for all attached protocols that use the
* ifq/schednetisr input mechanism.
*/
-static int
+static errno_t
lo_input(
- struct mbuf *m,
- __unused char *fh,
- __unused struct ifnet *ifp,
- __unused u_long protocol_family,
- __unused int sync_ok)
+ __unused ifnet_t ifp,
+ __unused protocol_family_t protocol_family,
+ mbuf_t m)
{
if (proto_input(protocol_family, m) != 0)
m_freem(m);
#endif /* NLOOP > 0 */
-static int lo_attach_proto(struct ifnet *ifp, u_long protocol_family)
+static errno_t lo_attach_proto(ifnet_t ifp, protocol_family_t protocol_family)
{
- struct dlil_proto_reg_str reg;
- int stat =0 ;
+ struct ifnet_attach_proto_param_v2 proto;
+ errno_t result = 0;
- bzero(®, sizeof(reg));
- TAILQ_INIT(®.demux_desc_head);
- reg.interface_family = ifp->if_family;
- reg.unit_number = ifp->if_unit;
- reg.input = lo_input;
- reg.pre_output = lo_pre_output;
- reg.protocol_family = protocol_family;
+ bzero(&proto, sizeof(proto));
+ proto.input = lo_input;
+ proto.pre_output = lo_pre_output;
- stat = dlil_attach_protocol(®);
+ result = ifnet_attach_protocol_v2(ifp, protocol_family, &proto);
- if (stat && stat != EEXIST) {
- printf("lo_attach_proto: dlil_attach_protocol for %d returned=%d\n",
- protocol_family, stat);
+ if (result && result != EEXIST) {
+ printf("lo_attach_proto: ifnet_attach_protocol for %u returned=%d\n",
+ protocol_family, result);
}
- return stat;
+ return result;
}
-void lo_reg_if_mods()
+static void lo_reg_if_mods(void)
{
int error;
/* Register protocol registration functions */
- if ((error = dlil_reg_proto_module(PF_INET, APPLE_IF_FAM_LOOPBACK, lo_attach_proto, NULL)) != 0)
- printf("dlil_reg_proto_module failed for AF_INET error=%d\n", error);
+ if ((error = proto_register_plumber(PF_INET, APPLE_IF_FAM_LOOPBACK, lo_attach_proto, NULL)) != 0)
+ printf("proto_register_plumber failed for AF_INET error=%d\n", error);
- if ((error = dlil_reg_proto_module(PF_INET6, APPLE_IF_FAM_LOOPBACK, lo_attach_proto, NULL)) != 0)
- printf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
+ if ((error = proto_register_plumber(PF_INET6, APPLE_IF_FAM_LOOPBACK, lo_attach_proto, NULL)) != 0)
+ printf("proto_register_plumber failed for AF_INET6 error=%d\n", error);
}
static errno_t
/* ARGSUSED */
void
-loopattach(
- __unused void *dummy)
+loopattach(void)
{
- struct ifnet *ifp;
- int i = 0;
+ struct ifnet_init_params lo_init;
+ errno_t result = 0;
- lo_reg_if_mods();
+#if NLOOP != 1
+More than one loopback interface is not supported.
+#endif
- for (ifp = loif; i < NLOOP; ifp++) {
- lo_statics[i].bpf_callback = 0;
- lo_statics[i].bpf_mode = BPF_TAP_DISABLE;
- bzero(ifp, sizeof(struct ifnet));
- ifp->if_name = "lo";
- ifp->if_family = APPLE_IF_FAM_LOOPBACK;
- ifp->if_unit = i++;
- ifp->if_mtu = LOMTU;
- ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST;
- ifp->if_ioctl = loioctl;
- ifp->if_demux = lo_demux;
- ifp->if_framer = lo_framer;
- ifp->if_add_proto = lo_add_proto;
- ifp->if_del_proto = lo_del_proto;
- ifp->if_set_bpf_tap = lo_set_bpf_tap;
- ifp->if_output = lo_output;
- ifp->if_type = IFT_LOOP;
- ifp->if_hwassist = IF_HWASSIST_CSUM_IP | IF_HWASSIST_CSUM_TCP | IF_HWASSIST_CSUM_UDP;
- ifp->if_hdrlen = sizeof(struct loopback_header);
- lo_ifp = ifp;
- dlil_if_attach(ifp);
-#if NBPFILTER > 0
- bpfattach(ifp, DLT_NULL, sizeof(u_int));
+ lo_reg_if_mods();
+
+ lo_statics[0].bpf_callback = 0;
+ lo_statics[0].bpf_mode = BPF_TAP_DISABLE;
+
+ bzero(&lo_init, sizeof(lo_init));
+ lo_init.name = "lo";
+ lo_init.unit = 0;
+ lo_init.family = IFNET_FAMILY_LOOPBACK;
+ lo_init.type = IFT_LOOP;
+ lo_init.output = lo_output;
+ lo_init.demux = lo_demux;
+ lo_init.add_proto = lo_add_proto;
+ lo_init.del_proto = lo_del_proto;
+ lo_init.framer = lo_framer;
+ lo_init.softc = &lo_statics[0];
+ lo_init.ioctl = loioctl;
+ lo_init.set_bpf_tap = lo_set_bpf_tap;
+ result = ifnet_allocate(&lo_init, &lo_ifp);
+ if (result != 0) {
+ printf("ifnet_allocate for lo0 failed - %d\n", result);
+ return;
+ }
+
+ ifnet_set_mtu(lo_ifp, LOMTU);
+ ifnet_set_flags(lo_ifp, IFF_LOOPBACK | IFF_MULTICAST, IFF_LOOPBACK | IFF_MULTICAST);
+ ifnet_set_offload(lo_ifp, IFNET_CSUM_IP | IFNET_CSUM_TCP | IFNET_CSUM_UDP | IFNET_CSUM_FRAGMENT | IFNET_IP_FRAGMENT | IFNET_MULTIPAGES);
+ ifnet_set_hdrlen(lo_ifp, sizeof(struct loopback_header));
+ ifnet_set_eflags(lo_ifp, IFEF_SENDLIST, IFEF_SENDLIST);
+
+#if CONFIG_MACF_NET
+ mac_ifnet_label_init(ifp);
#endif
+
+ result = ifnet_attach(lo_ifp, NULL);
+ if (result != 0) {
+ printf("ifnet_attach lo0 failed - %d\n", result);
+ return;
}
+ bpfattach(lo_ifp, DLT_NULL, sizeof(u_int));
+
loopattach_done = 1;
}
projects / apple / xnu.git / blobdiff