/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2020 Apple Inc. All rights reserved.
*
* @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
* 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,
* 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@
*/
/*
*
*/
-
-
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
+#include <pexpert/pexpert.h>
+
+#define etherbroadcastaddr fugly
#include <net/if.h>
#include <net/route.h>
#include <net/if_llc.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_ether.h>
+#include <net/if_gif.h>
#include <netinet/if_ether.h>
-#include <netinet/in.h> /* For M_LOOP */
+#include <netinet/in.h> /* For M_LOOP */
+#include <net/kpi_interface.h>
+#include <net/kpi_protocol.h>
+#undef etherbroadcastaddr
/*
-#if INET
-#include <netinet/in.h>
-#include <netinet/in_var.h>
-
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#endif
-*/
-
+ #if INET
+ #include <netinet/in.h>
+ #include <netinet/in_var.h>
+ *
+ #include <netinet/in_systm.h>
+ #include <netinet/ip.h>
+ #endif
+ */
+#include <net/ether_if_module.h>
#include <sys/socketvar.h>
#include <net/if_vlan_var.h>
-#include <net/if_bond_var.h>
+#include <net/if_6lowpan_var.h>
+#if BOND
+#include <net/if_bond_internal.h>
+#endif /* BOND */
+#if IF_BRIDGE
+#include <net/if_bridgevar.h>
+#endif /* IF_BRIDGE */
+#if IF_FAKE
+#include <net/if_fake_var.h>
+#endif /* IF_FAKE */
+#if IF_HEADLESS
+extern void if_headless_init(void);
+#endif /* IF_HEADLESS */
#include <net/dlil.h>
-#if LLC && CCITT
-extern struct ifqueue pkintrq;
-#endif
-
-/* General stuff from if_ethersubr.c - may not need some of it */
-
-#include <netat/at_pat.h>
-#if NETAT
-extern struct ifqueue atalkintrq;
-#endif
-
-
-#if BRIDGE
-#include <net/bridge.h>
-#endif
-
-#define memcpy(x,y,z) bcopy(y, x, z)
-
-
SYSCTL_DECL(_net_link);
-SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet");
+SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
+ "Ethernet");
struct en_desc {
- u_int16_t type; /* Type of protocol stored in data */
- u_long protocol_family; /* Protocol family */
- u_long data[2]; /* Protocol data */
+ u_int16_t type; /* Type of protocol stored in data */
+ u_int32_t protocol_family; /* Protocol family */
+ u_int32_t data[2]; /* Protocol data */
};
+
/* descriptors are allocated in blocks of ETHER_DESC_BLK_SIZE */
-#define ETHER_DESC_BLK_SIZE (10)
+#if !XNU_TARGET_OS_OSX
+#define ETHER_DESC_BLK_SIZE (2) /* IP, ARP */
+#else /* XNU_TARGET_OS_OSX */
+#define ETHER_DESC_BLK_SIZE (10)
+#endif /* XNU_TARGET_OS_OSX */
/*
- * Header for the demux list, hangs off of IFP at family_cookie
+ * Header for the demux list, hangs off of IFP at if_family_cookie
*/
-
struct ether_desc_blk_str {
- u_long n_max_used;
- u_long n_count;
- u_long n_used;
+ u_int32_t n_max_used;
+ u_int32_t n_count;
+ u_int32_t n_used;
struct en_desc block_ptr[1];
};
+
/* Size of the above struct before the array of struct en_desc */
-#define ETHER_DESC_HEADER_SIZE ((size_t)&(((struct ether_desc_blk_str*)0)->block_ptr[0]))
-__private_extern__ u_char etherbroadcastaddr[ETHER_ADDR_LEN] =
- { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+#define ETHER_DESC_HEADER_SIZE \
+ ((size_t) offsetof(struct ether_desc_blk_str, block_ptr))
-int ether_add_proto_old(struct ifnet *ifp, u_long protocol_family, struct ddesc_head_str *desc_head);
-int ether_add_if(struct ifnet *ifp);
-int ether_del_if(struct ifnet *ifp);
-int ether_init_if(struct ifnet *ifp);
-int ether_family_init(void);
+__private_extern__ u_char etherbroadcastaddr[ETHER_ADDR_LEN] =
+{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
/*
* Release all descriptor entries owned by this protocol (there may be several).
* the unused entries.
*/
int
-ether_del_proto(
- ifnet_t ifp,
- protocol_family_t protocol_family)
+ether_del_proto(ifnet_t ifp, protocol_family_t protocol_family)
{
- struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
- u_long current = 0;
+ struct ether_desc_blk_str *desc_blk =
+ (struct ether_desc_blk_str *)ifp->if_family_cookie;
+ u_int32_t current = 0;
int found = 0;
-
- if (desc_blk == NULL)
+
+ if (desc_blk == NULL) {
return 0;
-
+ }
+
for (current = desc_blk->n_max_used; current > 0; current--) {
- if (desc_blk->block_ptr[current - 1].protocol_family == protocol_family) {
+ if (desc_blk->block_ptr[current - 1].protocol_family ==
+ protocol_family) {
found = 1;
desc_blk->block_ptr[current - 1].type = 0;
desc_blk->n_used--;
}
}
-
+
if (desc_blk->n_used == 0) {
- FREE(ifp->family_cookie, M_IFADDR);
- ifp->family_cookie = 0;
- }
- else {
+ FREE(ifp->if_family_cookie, M_IFADDR);
+ ifp->if_family_cookie = 0;
+ } else {
/* Decrement n_max_used */
- for (; desc_blk->n_max_used > 0 && desc_blk->block_ptr[desc_blk->n_max_used - 1].type == 0; desc_blk->n_max_used--)
+ for (; desc_blk->n_max_used > 0 &&
+ desc_blk->block_ptr[desc_blk->n_max_used - 1].type == 0;
+ desc_blk->n_max_used--) {
;
+ }
}
-
- return 0;
- }
+ return 0;
+}
static int
-ether_add_proto_internal(
- struct ifnet *ifp,
- protocol_family_t protocol,
- const struct ifnet_demux_desc *demux)
+ether_add_proto_internal(struct ifnet *ifp, protocol_family_t protocol,
+ const struct ifnet_demux_desc *demux)
{
struct en_desc *ed;
- struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
+ struct ether_desc_blk_str *desc_blk =
+ (struct ether_desc_blk_str *)ifp->if_family_cookie;
u_int32_t i;
-
+
switch (demux->type) {
- /* These types are supported */
- /* Top three are preferred */
+ /* These types are supported */
+ /* Top three are preferred */
+ case DLIL_DESC_ETYPE2:
+ if (demux->datalen != 2) {
+ return EINVAL;
+ }
+ break;
+
+ case DLIL_DESC_SAP:
+ if (demux->datalen != 3) {
+ return EINVAL;
+ }
+ break;
+
+ case DLIL_DESC_SNAP:
+ if (demux->datalen != 5) {
+ return EINVAL;
+ }
+ break;
+
+ default:
+ return ENOTSUP;
+ }
+
+ /* Verify a matching descriptor does not exist */
+ if (desc_blk != NULL) {
+ switch (demux->type) {
case DLIL_DESC_ETYPE2:
- if (demux->datalen != 2) {
- return EINVAL;
+ for (i = 0; i < desc_blk->n_max_used; i++) {
+ if (desc_blk->block_ptr[i].type ==
+ DLIL_DESC_ETYPE2 &&
+ desc_blk->block_ptr[i].data[0] ==
+ *(u_int16_t*)demux->data) {
+ return EADDRINUSE;
+ }
}
break;
-
case DLIL_DESC_SAP:
- if (demux->datalen != 3) {
- return EINVAL;
- }
- break;
-
case DLIL_DESC_SNAP:
- if (demux->datalen != 5) {
- return EINVAL;
+ for (i = 0; i < desc_blk->n_max_used; i++) {
+ if (desc_blk->block_ptr[i].type ==
+ demux->type &&
+ bcmp(desc_blk->block_ptr[i].data,
+ demux->data, demux->datalen) == 0) {
+ return EADDRINUSE;
+ }
}
break;
-
- default:
- return ENOTSUP;
- }
-
- // Verify a matching descriptor does not exist.
- if (desc_blk != NULL) {
- switch (demux->type) {
- case DLIL_DESC_ETYPE2:
- for (i = 0; i < desc_blk->n_max_used; i++) {
- if (desc_blk->block_ptr[i].type == DLIL_DESC_ETYPE2 &&
- desc_blk->block_ptr[i].data[0] ==
- *(u_int16_t*)demux->data) {
- return EADDRINUSE;
- }
- }
- break;
- case DLIL_DESC_SAP:
- case DLIL_DESC_SNAP:
- for (i = 0; i < desc_blk->n_max_used; i++) {
- if (desc_blk->block_ptr[i].type == demux->type &&
- bcmp(desc_blk->block_ptr[i].data, demux->data,
- demux->datalen) == 0) {
- return EADDRINUSE;
- }
- }
- break;
}
}
-
- // Check for case where all of the descriptor blocks are in use
+
+ /* Check for case where all of the descriptor blocks are in use */
if (desc_blk == NULL || desc_blk->n_used == desc_blk->n_count) {
struct ether_desc_blk_str *tmp;
- u_long new_count = ETHER_DESC_BLK_SIZE;
- u_long new_size;
- u_long old_size = 0;
-
+ u_int32_t new_count = ETHER_DESC_BLK_SIZE;
+ u_int32_t new_size;
+ u_int32_t old_size = 0;
+
i = 0;
-
+
if (desc_blk) {
new_count += desc_blk->n_count;
- old_size = desc_blk->n_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
+ old_size = desc_blk->n_count * sizeof(struct en_desc) +
+ ETHER_DESC_HEADER_SIZE;
i = desc_blk->n_used;
}
-
- new_size = new_count * sizeof(struct en_desc) + ETHER_DESC_HEADER_SIZE;
-
+
+ new_size = new_count * sizeof(struct en_desc) +
+ ETHER_DESC_HEADER_SIZE;
+
tmp = _MALLOC(new_size, M_IFADDR, M_WAITOK);
- if (tmp == 0) {
+ if (tmp == NULL) {
/*
* Remove any previous descriptors set in the call.
*/
return ENOMEM;
}
-
- bzero(tmp + old_size, new_size - old_size);
+
+ bzero(((char *)tmp) + old_size, new_size - old_size);
if (desc_blk) {
bcopy(desc_blk, tmp, old_size);
FREE(desc_blk, M_IFADDR);
}
desc_blk = tmp;
- ifp->family_cookie = (u_long)desc_blk;
+ ifp->if_family_cookie = (uintptr_t)desc_blk;
desc_blk->n_count = new_count;
- }
- else {
+ } else {
/* Find a free entry */
for (i = 0; i < desc_blk->n_count; i++) {
if (desc_blk->block_ptr[i].type == 0) {
}
}
}
-
+
/* Bump n_max_used if appropriate */
if (i + 1 > desc_blk->n_max_used) {
desc_blk->n_max_used = i + 1;
}
-
+
ed = &desc_blk->block_ptr[i];
ed->protocol_family = protocol;
ed->data[0] = 0;
ed->data[1] = 0;
-
+
switch (demux->type) {
- case DLIL_DESC_ETYPE2:
- /* 2 byte ethernet raw protocol type is at native_type */
- /* prtocol must be in network byte order */
- ed->type = DLIL_DESC_ETYPE2;
- ed->data[0] = *(u_int16_t*)demux->data;
- break;
-
- case DLIL_DESC_SAP:
- ed->type = DLIL_DESC_SAP;
- bcopy(demux->data, &ed->data[0], 3);
- break;
-
- case DLIL_DESC_SNAP: {
- u_int8_t* pDest = ((u_int8_t*)&ed->data[0]) + 3;
- ed->type = DLIL_DESC_SNAP;
- bcopy(demux->data, pDest, 5);
- }
- break;
+ case DLIL_DESC_ETYPE2:
+ /* 2 byte ethernet raw protocol type is at native_type */
+ /* prtocol must be in network byte order */
+ ed->type = DLIL_DESC_ETYPE2;
+ ed->data[0] = *(u_int16_t*)demux->data;
+ break;
+
+ case DLIL_DESC_SAP:
+ ed->type = DLIL_DESC_SAP;
+ bcopy(demux->data, &ed->data[0], 3);
+ break;
+
+ case DLIL_DESC_SNAP: {
+ u_int8_t* pDest = ((u_int8_t*)&ed->data[0]) + 3;
+ ed->type = DLIL_DESC_SNAP;
+ bcopy(demux->data, pDest, 5);
+ break;
}
-
+ }
+
desc_blk->n_used++;
-
+
return 0;
}
int
-ether_add_proto(
- ifnet_t ifp,
- protocol_family_t protocol,
- const struct ifnet_demux_desc *demux_list,
- u_int32_t demux_count)
+ether_add_proto(ifnet_t ifp, protocol_family_t protocol,
+ const struct ifnet_demux_desc *demux_list, u_int32_t demux_count)
{
- int error = 0;
- u_int32_t i;
-
+ int error = 0;
+ u_int32_t i;
+
for (i = 0; i < demux_count; i++) {
error = ether_add_proto_internal(ifp, protocol, &demux_list[i]);
if (error) {
break;
}
}
-
- return error;
-}
-__private_extern__ int
-ether_add_proto_old(
- struct ifnet *ifp,
- u_long protocol_family,
- struct ddesc_head_str *desc_head)
-{
- struct dlil_demux_desc *desc;
- int error = 0;
-
- TAILQ_FOREACH(desc, desc_head, next) {
- struct ifnet_demux_desc dmx;
- int swapped = 0;
-
- // Convert dlil_demux_desc to ifnet_demux_desc
- dmx.type = desc->type;
- dmx.datalen = desc->variants.native_type_length;
- dmx.data = desc->native_type;
-
-#ifdef DLIL_DESC_RAW
- if (dmx.type == DLIL_DESC_RAW) {
- swapped = 1;
- dmx.type = DLIL_DESC_ETYPE2;
- dmx.datalen = 2;
- *(u_int16_t*)dmx.data = htons(*(u_int16_t*)dmx.data);
- }
-#endif
-
- error = ether_add_proto_internal(ifp, protocol_family, &dmx);
- if (swapped) {
- *(u_int16_t*)dmx.data = ntohs(*(u_int16_t*)dmx.data);
- swapped = 0;
- }
- if (error) {
- ether_del_proto(ifp, protocol_family);
- break;
- }
- }
-
return error;
-}
-
-
-static int
-ether_shutdown(void)
-{
- return 0;
}
-
int
-ether_demux(
- ifnet_t ifp,
- mbuf_t m,
- char *frame_header,
- protocol_family_t *protocol_family)
+ether_demux(ifnet_t ifp, mbuf_t m, char *frame_header,
+ protocol_family_t *protocol_family)
{
- struct ether_header *eh = (struct ether_header *)frame_header;
- u_short ether_type = eh->ether_type;
- u_int16_t type;
- u_int8_t *data;
- u_long i = 0;
- struct ether_desc_blk_str *desc_blk = (struct ether_desc_blk_str *)ifp->family_cookie;
- u_long maxd = desc_blk ? desc_blk->n_max_used : 0;
- struct en_desc *ed = desc_blk ? desc_blk->block_ptr : NULL;
- u_int32_t extProto1 = 0;
- u_int32_t extProto2 = 0;
+ struct ether_header *eh = (struct ether_header *)(void *)frame_header;
+ u_short ether_type = eh->ether_type;
+ u_int16_t type;
+ u_int8_t *data;
+ u_int32_t i = 0;
+ struct ether_desc_blk_str *desc_blk =
+ (struct ether_desc_blk_str *)ifp->if_family_cookie;
+ u_int32_t maxd = desc_blk ? desc_blk->n_max_used : 0;
+ struct en_desc *ed = desc_blk ? desc_blk->block_ptr : NULL;
+ u_int32_t extProto1 = 0;
+ u_int32_t extProto2 = 0;
if (eh->ether_dhost[0] & 1) {
/* Check for broadcast */
- if (*(u_int32_t*)eh->ether_dhost == 0xFFFFFFFF &&
- *(u_int16_t*)(eh->ether_dhost + sizeof(u_int32_t)) == 0xFFFF)
+ if (_ether_cmp(etherbroadcastaddr, eh->ether_dhost) == 0) {
m->m_flags |= M_BCAST;
- else
+ } else {
m->m_flags |= M_MCAST;
+ }
}
- if (ifp->if_eflags & IFEF_BOND) {
- /* if we're bonded, bond "protocol" gets all the packets */
- *protocol_family = PF_BOND;
- return (0);
+ if (m->m_flags & M_HASFCS) {
+ /*
+ * If the M_HASFCS is set by the driver we want to make sure
+ * that we strip off the trailing FCS data before handing it
+ * up the stack.
+ */
+ m_adj(m, -ETHER_CRC_LEN);
+ m->m_flags &= ~M_HASFCS;
}
if ((eh->ether_dhost[0] & 1) == 0) {
/*
- * When the driver is put into promiscuous mode we may receive unicast
- * frames that are not intended for our interfaces. They are marked here
- * as being promiscuous so the caller may dispose of them after passing
- * the packets to any interface filters.
- */
- #define ETHER_CMP(x, y) ( ((u_int16_t *) x)[0] != ((u_int16_t *) y)[0] || \
- ((u_int16_t *) x)[1] != ((u_int16_t *) y)[1] || \
- ((u_int16_t *) x)[2] != ((u_int16_t *) y)[2] )
-
- if (ETHER_CMP(eh->ether_dhost, ifnet_lladdr(ifp))) {
+ * When the driver is put into promiscuous mode we may receive
+ * unicast frames that are not intended for our interfaces.
+ * They are marked here as being promiscuous so the caller may
+ * dispose of them after passing the packets to any interface
+ * filters.
+ */
+ if (_ether_cmp(eh->ether_dhost, IF_LLADDR(ifp))) {
m->m_flags |= M_PROMISC;
}
}
-
- /* Quick check for VLAN */
- if ((m->m_pkthdr.csum_flags & CSUM_VLAN_TAG_VALID) != 0 ||
- ether_type == htons(ETHERTYPE_VLAN)) {
- *protocol_family = PF_VLAN;
+
+ /* check for IEEE 802.15.4 */
+ if (ether_type == htons(ETHERTYPE_IEEE802154)) {
+ *protocol_family = PF_802154;
return 0;
}
-
+
+ /* check for VLAN */
+ if ((m->m_pkthdr.csum_flags & CSUM_VLAN_TAG_VALID) != 0) {
+ if (EVL_VLANOFTAG(m->m_pkthdr.vlan_tag) != 0) {
+ *protocol_family = PF_VLAN;
+ return 0;
+ }
+ /* the packet is just priority-tagged, clear the bit */
+ m->m_pkthdr.csum_flags &= ~CSUM_VLAN_TAG_VALID;
+ } else if (ether_type == htons(ETHERTYPE_VLAN)) {
+ struct ether_vlan_header * evl;
+
+ evl = (struct ether_vlan_header *)(void *)frame_header;
+ if (m->m_len < ETHER_VLAN_ENCAP_LEN ||
+ ntohs(evl->evl_proto) == ETHERTYPE_VLAN ||
+ EVL_VLANOFTAG(ntohs(evl->evl_tag)) != 0) {
+ *protocol_family = PF_VLAN;
+ return 0;
+ }
+ /* the packet is just priority-tagged */
+
+ /* make the encapsulated ethertype the actual ethertype */
+ ether_type = evl->evl_encap_proto = evl->evl_proto;
+
+ /* remove the encapsulation header */
+ m->m_len -= ETHER_VLAN_ENCAP_LEN;
+ m->m_data += ETHER_VLAN_ENCAP_LEN;
+ m->m_pkthdr.len -= ETHER_VLAN_ENCAP_LEN;
+ m->m_pkthdr.csum_flags = 0; /* can't trust hardware checksum */
+ } else if (ether_type == htons(ETHERTYPE_ARP)) {
+ m->m_pkthdr.pkt_flags |= PKTF_INET_RESOLVE; /* ARP packet */
+ }
data = mtod(m, u_int8_t*);
-
+
/*
- * Determine the packet's protocol type and stuff the protocol into
- * longs for quick compares.
- */
-
+ * Determine the packet's protocol type and stuff the protocol into
+ * longs for quick compares.
+ */
if (ntohs(ether_type) <= 1500) {
- extProto1 = *(u_int32_t*)data;
-
- // SAP or SNAP
+ bcopy(data, &extProto1, sizeof(u_int32_t));
+
+ /* SAP or SNAP */
if ((extProto1 & htonl(0xFFFFFF00)) == htonl(0xAAAA0300)) {
- // SNAP
+ /* SNAP */
type = DLIL_DESC_SNAP;
- extProto2 = *(u_int32_t*)(data + sizeof(u_int32_t));
+ bcopy(data + sizeof(u_int32_t), &extProto2,
+ sizeof(u_int32_t));
extProto1 &= htonl(0x000000FF);
} else {
type = DLIL_DESC_SAP;
} else {
type = DLIL_DESC_ETYPE2;
}
-
- /*
- * Search through the connected protocols for a match.
- */
-
+
+ /*
+ * Search through the connected protocols for a match.
+ */
switch (type) {
- case DLIL_DESC_ETYPE2:
- for (i = 0; i < maxd; i++) {
- if ((ed[i].type == type) && (ed[i].data[0] == ether_type)) {
- *protocol_family = ed[i].protocol_family;
- return 0;
- }
+ case DLIL_DESC_ETYPE2:
+ for (i = 0; i < maxd; i++) {
+ if ((ed[i].type == type) &&
+ (ed[i].data[0] == ether_type)) {
+ *protocol_family = ed[i].protocol_family;
+ return 0;
}
- break;
-
- case DLIL_DESC_SAP:
- for (i = 0; i < maxd; i++) {
- if ((ed[i].type == type) && (ed[i].data[0] == extProto1)) {
- *protocol_family = ed[i].protocol_family;
- return 0;
- }
+ }
+ break;
+
+ case DLIL_DESC_SAP:
+ for (i = 0; i < maxd; i++) {
+ if ((ed[i].type == type) &&
+ (ed[i].data[0] == extProto1)) {
+ *protocol_family = ed[i].protocol_family;
+ return 0;
}
- break;
-
- case DLIL_DESC_SNAP:
- for (i = 0; i < maxd; i++) {
- if ((ed[i].type == type) && (ed[i].data[0] == extProto1) &&
- (ed[i].data[1] == extProto2)) {
- *protocol_family = ed[i].protocol_family;
- return 0;
- }
+ }
+ break;
+
+ case DLIL_DESC_SNAP:
+ for (i = 0; i < maxd; i++) {
+ if ((ed[i].type == type) &&
+ (ed[i].data[0] == extProto1) &&
+ (ed[i].data[1] == extProto2)) {
+ *protocol_family = ed[i].protocol_family;
+ return 0;
}
+ }
break;
}
-
+
return ENOENT;
-}
+}
+
+/*
+ * On embedded, ether_frameout is practicaly ether_frameout_extended.
+ * On non-embedded, ether_frameout has long been exposed as a public KPI,
+ * and therefore its signature must remain the same (without the pre- and
+ * postpend length parameters.)
+ */
+#if KPI_INTERFACE_EMBEDDED
+int
+ether_frameout(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *ndest, const char *edst,
+ const char *ether_type, u_int32_t *prepend_len, u_int32_t *postpend_len)
+#else /* !KPI_INTERFACE_EMBEDDED */
+int
+ether_frameout(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *ndest, const char *edst,
+ const char *ether_type)
+#endif /* KPI_INTERFACE_EMBEDDED */
+{
+#if KPI_INTERFACE_EMBEDDED
+ return ether_frameout_extended(ifp, m, ndest, edst, ether_type,
+ prepend_len, postpend_len);
+#else /* !KPI_INTERFACE_EMBEDDED */
+ return ether_frameout_extended(ifp, m, ndest, edst, ether_type,
+ NULL, NULL);
+#endif /* !KPI_INTERFACE_EMBEDDED */
+}
/*
* Ethernet output routine.
* packet leaves a multiple of 512 bytes of data in remainder.
*/
int
-ether_frameout(
- struct ifnet *ifp,
- struct mbuf **m,
- const struct sockaddr *ndest,
- const char *edst,
- const char *ether_type)
+ether_frameout_extended(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *ndest, const char *edst,
+ const char *ether_type, u_int32_t *prepend_len, u_int32_t *postpend_len)
{
struct ether_header *eh;
- int hlen; /* link layer header length */
+ int hlen; /* link layer header length */
hlen = ETHER_HDR_LEN;
* reasons and compatibility with the original behavior.
*/
if ((ifp->if_flags & IFF_SIMPLEX) &&
- ((*m)->m_flags & M_LOOP)) {
- if (lo_ifp) {
- if ((*m)->m_flags & M_BCAST) {
- struct mbuf *n = m_copy(*m, 0, (int)M_COPYALL);
- if (n != NULL)
- dlil_output(lo_ifp, ndest->sa_family, n, 0, ndest, 0);
- }
- else {
- if (bcmp(edst, ifnet_lladdr(ifp), ETHER_ADDR_LEN) == 0) {
- dlil_output(lo_ifp, ndest->sa_family, *m, 0, ndest, 0);
- return EJUSTRETURN;
- }
- }
- }
+ ((*m)->m_flags & M_LOOP) && lo_ifp != NULL) {
+ if ((*m)->m_flags & M_BCAST) {
+ struct mbuf *n = m_copy(*m, 0, (int)M_COPYALL);
+ if (n != NULL) {
+ dlil_output(lo_ifp, ndest->sa_family,
+ n, NULL, ndest, 0, NULL);
+ }
+ } else if (_ether_cmp(edst, IF_LLADDR(ifp)) == 0) {
+ dlil_output(lo_ifp, ndest->sa_family, *m,
+ NULL, ndest, 0, NULL);
+ return EJUSTRETURN;
+ }
}
-
+
/*
* Add local net header. If no space in first mbuf,
* allocate another.
*/
- M_PREPEND(*m, sizeof (struct ether_header), M_DONTWAIT);
- if (*m == 0) {
- return (EJUSTRETURN);
+ M_PREPEND(*m, sizeof(struct ether_header), M_DONTWAIT, 0);
+ if (*m == NULL) {
+ return EJUSTRETURN;
}
+ if (prepend_len != NULL) {
+ *prepend_len = sizeof(struct ether_header);
+ }
+ if (postpend_len != NULL) {
+ *postpend_len = 0;
+ }
eh = mtod(*m, struct ether_header *);
- (void)memcpy(&eh->ether_type, ether_type,
- sizeof(eh->ether_type));
- (void)memcpy(eh->ether_dhost, edst, 6);
- ifnet_lladdr_copy_bytes(ifp, eh->ether_shost, ETHER_ADDR_LEN);
+ (void) memcpy(&eh->ether_type, ether_type, sizeof(eh->ether_type));
+ (void) memcpy(eh->ether_dhost, edst, ETHER_ADDR_LEN);
+ ifnet_lladdr_copy_bytes(ifp, eh->ether_shost, ETHER_ADDR_LEN);
return 0;
}
-
-__private_extern__ int
-ether_add_if(struct ifnet *ifp)
-{
- ifp->if_framer = ether_frameout;
- ifp->if_demux = ether_demux;
-
- return 0;
-}
-
-__private_extern__ int
-ether_del_if(struct ifnet *ifp)
-{
- if (ifp->family_cookie) {
- FREE(ifp->family_cookie, M_IFADDR);
- return 0;
- }
- else
- return ENOENT;
-}
-
-__private_extern__ int
-ether_init_if(struct ifnet *ifp)
-{
- /*
- * Copy ethernet address out of old style arpcom. New
- * interfaces created using the KPIs will not have an
- * interface family. Those interfaces will have the
- * lladdr passed in when the interface is created.
- */
- u_char *enaddr = ((u_char*)ifp) + sizeof(struct ifnet);
- ifnet_set_lladdr(ifp, enaddr, 6);
- bzero(enaddr, 6);
-
- return 0;
-}
-
-
errno_t
-ether_check_multi(
- ifnet_t ifp,
- const struct sockaddr *proto_addr)
+ether_check_multi(ifnet_t ifp, const struct sockaddr *proto_addr)
{
- errno_t result = EAFNOSUPPORT;
+#pragma unused(ifp)
+ errno_t result = EAFNOSUPPORT;
const u_char *e_addr;
-
+
/*
* AF_SPEC and AF_LINK don't require translation. We do
* want to verify that they specify a valid multicast.
*/
- switch(proto_addr->sa_family) {
- case AF_UNSPEC:
- e_addr = (const u_char*)&proto_addr->sa_data[0];
- if ((e_addr[0] & 0x01) != 0x01)
- result = EADDRNOTAVAIL;
- else
- result = 0;
- break;
-
- case AF_LINK:
- e_addr = CONST_LLADDR((const struct sockaddr_dl*)proto_addr);
- if ((e_addr[0] & 0x01) != 0x01)
- result = EADDRNOTAVAIL;
- else
- result = 0;
- break;
+ switch (proto_addr->sa_family) {
+ case AF_UNSPEC:
+ e_addr = (const u_char*)&proto_addr->sa_data[0];
+ if ((e_addr[0] & 0x01) != 0x01) {
+ result = EADDRNOTAVAIL;
+ } else {
+ result = 0;
+ }
+ break;
+
+ case AF_LINK:
+ e_addr = CONST_LLADDR((const struct sockaddr_dl*)
+ (uintptr_t)(size_t)proto_addr);
+ if ((e_addr[0] & 0x01) != 0x01) {
+ result = EADDRNOTAVAIL;
+ } else {
+ result = 0;
+ }
+ break;
}
-
+
return result;
}
int
-ether_ioctl(
- __unused ifnet_t ifp,
- __unused u_int32_t command,
- __unused void* data)
+ether_ioctl(ifnet_t ifp, u_int32_t command, void *data)
{
+#pragma unused(ifp, command, data)
return EOPNOTSUPP;
}
-
-extern int ether_attach_inet(struct ifnet *ifp, u_long proto_family);
-extern int ether_detach_inet(struct ifnet *ifp, u_long proto_family);
-extern int ether_attach_inet6(struct ifnet *ifp, u_long proto_family);
-extern int ether_detach_inet6(struct ifnet *ifp, u_long proto_family);
-
-extern void kprintf(const char *, ...);
-
-int ether_family_init(void)
+__private_extern__ int
+ether_family_init(void)
{
- int error=0;
- struct dlil_ifmod_reg_str ifmod_reg;
-
- /* ethernet family is built-in, called from bsd_init */
-
- bzero(&ifmod_reg, sizeof(ifmod_reg));
- ifmod_reg.add_if = ether_add_if;
- ifmod_reg.del_if = ether_del_if;
- ifmod_reg.init_if = ether_init_if;
- ifmod_reg.add_proto = ether_add_proto_old;
- ifmod_reg.del_proto = ether_del_proto;
- ifmod_reg.ifmod_ioctl = ether_ioctl;
- ifmod_reg.shutdown = ether_shutdown;
-
- if (dlil_reg_if_modules(APPLE_IF_FAM_ETHERNET, &ifmod_reg)) {
- printf("WARNING: ether_family_init -- Can't register if family modules\n");
- error = EIO;
- goto done;
- }
+ errno_t error = 0;
/* Register protocol registration functions */
-
- if ((error = dlil_reg_proto_module(PF_INET, APPLE_IF_FAM_ETHERNET,
- ether_attach_inet, ether_detach_inet)) != 0) {
- kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
+ if ((error = proto_register_plumber(PF_INET, APPLE_IF_FAM_ETHERNET,
+ ether_attach_inet, ether_detach_inet)) != 0) {
+ printf("proto_register_plumber failed for PF_INET error=%d\n",
+ error);
goto done;
}
-
-
- if ((error = dlil_reg_proto_module(PF_INET6, APPLE_IF_FAM_ETHERNET,
- ether_attach_inet6, ether_detach_inet6)) != 0) {
- kprintf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error);
+ if ((error = proto_register_plumber(PF_INET6, APPLE_IF_FAM_ETHERNET,
+ ether_attach_inet6, ether_detach_inet6)) != 0) {
+ printf("proto_register_plumber failed for PF_INET6 error=%d\n",
+ error);
goto done;
}
+#if VLAN
vlan_family_init();
+#endif /* VLAN */
+#if BOND
bond_family_init();
+#endif /* BOND */
+#if IF_BRIDGE
+ bridgeattach(0);
+#endif /* IF_BRIDGE */
+#if IF_FAKE
+ if_fake_init();
+#endif /* IF_FAKE */
+#if IF_HEADLESS
+ if_headless_init();
+#endif /* IF_HEADLESS */
+#if SIXLOWPAN
+ sixlowpan_family_init();
+#endif /* VLAN */
+done:
- done:
-
- return (error);
+ return error;
}
projects / apple / xnu.git / blobdiff