6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  *
  25  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.

  26  */
  27 /* Copyright (c) 1990 Mentat Inc. */
  28 
  29 #include <sys/types.h>
  30 #include <sys/stream.h>
  31 #include <sys/dlpi.h>
  32 #include <sys/stropts.h>
  33 #include <sys/sysmacros.h>
  34 #include <sys/strsubr.h>
  35 #include <sys/strlog.h>
  36 #include <sys/strsun.h>
  37 #include <sys/zone.h>
  38 #define _SUN_TPI_VERSION 2
  39 #include <sys/tihdr.h>
  40 #include <sys/xti_inet.h>
  41 #include <sys/ddi.h>
  42 #include <sys/sunddi.h>
  43 #include <sys/cmn_err.h>
  44 #include <sys/debug.h>
  45 #include <sys/kobj.h>

 129 
 130 static void     ip_input_local_v4(ire_t *, mblk_t *, ipha_t *,
 131     ip_recv_attr_t *);
 132 
 133 static void     ip_input_broadcast_v4(ire_t *, mblk_t *, ipha_t *,
 134     ip_recv_attr_t *);
 135 static void     ip_input_multicast_v4(ire_t *, mblk_t *, ipha_t *,
 136     ip_recv_attr_t *);
 137 
 138 #pragma inline(ip_input_common_v4, ip_input_local_v4, ip_forward_xmit_v4)
 139 
 140 /*
 141  * Direct read side procedure capable of dealing with chains. GLDv3 based
 142  * drivers call this function directly with mblk chains while STREAMS
 143  * read side procedure ip_rput() calls this for single packet with ip_ring
 144  * set to NULL to process one packet at a time.
 145  *
 146  * The ill will always be valid if this function is called directly from
 147  * the driver.
 148  *
 149  * If ip_input() is called from GLDv3:


 150  *
 151  *   - This must be a non-VLAN IP stream.
 152  *   - 'mp' is either an untagged or a special priority-tagged packet.
 153  *   - Any VLAN tag that was in the MAC header has been stripped.
 154  *
 155  * If the IP header in packet is not 32-bit aligned, every message in the
 156  * chain will be aligned before further operations. This is required on SPARC
 157  * platform.
 158  */
 159 void
 160 ip_input(ill_t *ill, ill_rx_ring_t *ip_ring, mblk_t *mp_chain,
 161     struct mac_header_info_s *mhip)
 162 {
 163         (void) ip_input_common_v4(ill, ip_ring, mp_chain, mhip, NULL, NULL,
 164             NULL);
 165 }
 166 
 167 /*
 168  * ip_accept_tcp() - This function is called by the squeue when it retrieves
 169  * a chain of packets in the poll mode. The packets have gone through the
 170  * data link processing but not IP processing. For performance and latency
 171  * reasons, the squeue wants to process the chain in line instead of feeding
 172  * it back via ip_input path.
 173  *
 174  * We set up the ip_recv_attr_t with IRAF_TARGET_SQP to that ip_fanout_v4

   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  *
  25  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  26  * Copyright 2018 Joyent, Inc.
  27  */
  28 /* Copyright (c) 1990 Mentat Inc. */
  29 
  30 #include <sys/types.h>
  31 #include <sys/stream.h>
  32 #include <sys/dlpi.h>
  33 #include <sys/stropts.h>
  34 #include <sys/sysmacros.h>
  35 #include <sys/strsubr.h>
  36 #include <sys/strlog.h>
  37 #include <sys/strsun.h>
  38 #include <sys/zone.h>
  39 #define _SUN_TPI_VERSION 2
  40 #include <sys/tihdr.h>
  41 #include <sys/xti_inet.h>
  42 #include <sys/ddi.h>
  43 #include <sys/sunddi.h>
  44 #include <sys/cmn_err.h>
  45 #include <sys/debug.h>
  46 #include <sys/kobj.h>

 130 
 131 static void     ip_input_local_v4(ire_t *, mblk_t *, ipha_t *,
 132     ip_recv_attr_t *);
 133 
 134 static void     ip_input_broadcast_v4(ire_t *, mblk_t *, ipha_t *,
 135     ip_recv_attr_t *);
 136 static void     ip_input_multicast_v4(ire_t *, mblk_t *, ipha_t *,
 137     ip_recv_attr_t *);
 138 
 139 #pragma inline(ip_input_common_v4, ip_input_local_v4, ip_forward_xmit_v4)
 140 
 141 /*
 142  * Direct read side procedure capable of dealing with chains. GLDv3 based
 143  * drivers call this function directly with mblk chains while STREAMS
 144  * read side procedure ip_rput() calls this for single packet with ip_ring
 145  * set to NULL to process one packet at a time.
 146  *
 147  * The ill will always be valid if this function is called directly from
 148  * the driver.
 149  *
 150  * If this chain is part of a VLAN stream, then the VLAN tag is
 151  * stripped from the MAC header before being delivered to this
 152  * function.
 153  *




 154  * If the IP header in packet is not 32-bit aligned, every message in the
 155  * chain will be aligned before further operations. This is required on SPARC
 156  * platform.
 157  */
 158 void
 159 ip_input(ill_t *ill, ill_rx_ring_t *ip_ring, mblk_t *mp_chain,
 160     struct mac_header_info_s *mhip)
 161 {
 162         (void) ip_input_common_v4(ill, ip_ring, mp_chain, mhip, NULL, NULL,
 163             NULL);
 164 }
 165 
 166 /*
 167  * ip_accept_tcp() - This function is called by the squeue when it retrieves
 168  * a chain of packets in the poll mode. The packets have gone through the
 169  * data link processing but not IP processing. For performance and latency
 170  * reasons, the squeue wants to process the chain in line instead of feeding
 171  * it back via ip_input path.
 172  *
 173  * We set up the ip_recv_attr_t with IRAF_TARGET_SQP to that ip_fanout_v4