OS-5007 support SO_ATTACH_FILTER on ICMP sockets
Reviewed by: Cody Mello <melloc@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Approved by: Jerry Jelinek <jerry.jelinek@joyent.com>

          --- old/usr/src/uts/common/inet/rawip_impl.h
          +++ new/usr/src/uts/common/inet/rawip_impl.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *

  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
       23 + * Copyright 2016 Joyent, Inc.
  23   24   */
  24   25  /* Copyright (c) 1990 Mentat Inc. */
  25   26  
  26   27  #ifndef _RAWIP_IMPL_H
  27   28  #define _RAWIP_IMPL_H
  28   29  
  29   30  #ifdef  __cplusplus
  30   31  extern "C" {
  31   32  #endif
  32   33  

  33   34  #ifdef _KERNEL
  34   35  
  35   36  #include <sys/types.h>

  36   37  #include <sys/netstack.h>
  37   38  
  38   39  #include <netinet/in.h>
  39   40  #include <netinet/icmp6.h>
  40   41  #include <netinet/ip6.h>
  41   42  
  42   43  #include <inet/common.h>
  43   44  #include <inet/ip.h>
  44   45  #include <inet/optcom.h>
  45   46  #include <inet/tunables.h>
       47 +#include <inet/bpf.h>
  46   48  
  47   49  /*
  48   50   * ICMP stack instances
  49   51   */
  50   52  struct icmp_stack {
  51   53          netstack_t      *is_netstack;   /* Common netstack */
  52   54          void            *is_head;       /* Head for list of open icmps */
  53   55          mod_prop_info_t *is_propinfo_tbl; /* holds the icmp tunables */
  54   56          kstat_t         *is_ksp;        /* kstats */
  55   57          mib2_rawip_t    is_rawip_mib;   /* SNMP fixed size info */

  56   58          ldi_ident_t     is_ldi_ident;
  57   59  };
  58   60  
  59   61  typedef struct icmp_stack icmp_stack_t;
  60   62  
  61   63  /* Internal icmp control structure, one per open stream */
  62   64  typedef struct icmp_s {
  63   65          /*
  64   66           * The addresses and ports in the conn_t and icmp_state are protected by
  65   67           * conn_lock. conn_lock also protects the content of icmp_t.
  66   68           */
  67   69          uint_t          icmp_state;     /* TPI state */
  68   70  
  69   71          /* Written to only once at the time of opening the endpoint */
  70   72          conn_t          *icmp_connp;
  71   73  
  72   74          uint_t
  73   75              icmp_hdrincl : 1,           /* IP_HDRINCL option + RAW and IGMP */
  74   76  
  75   77              icmp_pad_to_bit_31: 31;
  76   78  

  77   79          icmp6_filter_t  *icmp_filter;           /* ICMP6_FILTER option */
  78   80  
  79   81          /* Set at open time and never changed */
  80   82          icmp_stack_t    *icmp_is;               /* Stack instance */
  81   83  
  82   84          int             icmp_delayed_error;
  83   85          kmutex_t        icmp_recv_lock;
  84   86          mblk_t          *icmp_fallback_queue_head;
  85   87          mblk_t          *icmp_fallback_queue_tail;
  86   88          struct sockaddr_storage icmp_delayed_addr;
       89 +
       90 +        krwlock_t       icmp_bpf_lock;  /* protects icmp_bpf */
       91 +        ip_bpf_insn_t   *icmp_bpf_prog; /* SO_ATTACH_FILTER bpf */
       92 +        uint_t          icmp_bpf_len;
  87   93  } icmp_t;
  88   94  
  89   95  /*
  90   96   * Object to represent database of options to search passed to
  91   97   * {sock,tpi}optcom_req() interface routine to take care of option
  92   98   * management and associated methods.
  93   99   */
  94  100  extern optdb_obj_t      icmp_opt_obj;
  95  101  extern uint_t           icmp_max_optsize;
  96  102  

  97  103  extern int      icmp_opt_default(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
  98  104  extern int      icmp_tpi_opt_get(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
  99  105  extern int      icmp_tpi_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
 100  106                      uint_t *, uchar_t *, void *, cred_t *);
 101  107  extern mblk_t   *icmp_snmp_get(queue_t *q, mblk_t *mpctl);
 102  108  
 103  109  extern void     icmp_ddi_g_init(void);
 104  110  extern void     icmp_ddi_g_destroy(void);
 105  111  
 106  112  extern sock_lower_handle_t rawip_create(int, int, int, sock_downcalls_t **,
 107  113      uint_t *, int *, int, cred_t *);
 108  114  extern int rawip_fallback(sock_lower_handle_t, queue_t *, boolean_t,
 109  115      so_proto_quiesced_cb_t, sock_quiesce_arg_t *);
 110  116  
 111  117  extern sock_downcalls_t sock_rawip_downcalls;
 112  118  
 113  119  #endif  /* _KERNEL */
 114  120  
 115  121  #ifdef  __cplusplus
 116  122  }
 117  123  #endif
 118  124  
 119  125  #endif  /* _RAWIP_IMPL_H */

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