pf_nv.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  */
   28 #ifndef _PF_NV_H_
   29 #define _PF_NV_H_
   30 
   31 #include <sys/nv.h>
   32 #include <sys/sdt.h>
   33 #include <sys/socket.h>
   34 #include <sys/types.h>
   35 
   36 #include <net/if.h>
   37 #include <net/if_var.h>
   38 #include <net/pfvar.h>
   39 
   40 SDT_PROVIDER_DECLARE(pf);
   41 SDT_PROBE_DECLARE(pf, ioctl, function, error);
   42 SDT_PROBE_DECLARE(pf, ioctl, nvchk, error);
   43 
   44 #define ERROUT_FUNCTION(target, x)                                      \
   45         do {                                                            \
   46                 error = (x);                                            \
   47                 SDT_PROBE3(pf, ioctl, function, error, __func__, error, \
   48                     __LINE__);                                          \
   49                 goto target;                                            \
   50         } while (0)
   51 
   52 #define PFNV_CHK(x)     do {    \
   53         error = (x);            \
   54         SDT_PROBE2(pf, ioctl, nvchk, error, error, __LINE__);   \
   55         if (error != 0)         \
   56                 goto errout;    \
   57         } while (0)
   58 
   59 #define PF_NV_DEF_UINT(fnname, type, max)                               \
   60         int pf_nv ## fnname ## _opt(const nvlist_t *, const char *,     \
   61             type *, type);                                              \
   62         int pf_nv ## fnname(const nvlist_t *, const char *, type *);    \
   63         int pf_nv ## fnname ## _array(const nvlist_t *, const char *,   \
   64             type *,size_t, size_t *);                                   \
   65         void pf_ ## fnname ## _array_nv(nvlist_t *, const char *,       \
   66             const type *, size_t);
   67 
   68 PF_NV_DEF_UINT(uint8, uint8_t, UINT8_MAX);
   69 PF_NV_DEF_UINT(uint16, uint16_t, UINT16_MAX);
   70 PF_NV_DEF_UINT(uint32, uint32_t, UINT32_MAX);
   71 PF_NV_DEF_UINT(uint64, uint64_t, UINT64_MAX);
   72 
   73 int     pf_nvbool(const nvlist_t *, const char *, bool *);
   74 int     pf_nvbinary(const nvlist_t *, const char *, void *, size_t);
   75 int     pf_nvint(const nvlist_t *, const char *, int *);
   76 int     pf_nvstring(const nvlist_t *, const char *, char *, size_t);
   77 
   78 /* Translation functions */
   79 
   80 int              pf_check_rule_addr(const struct pf_rule_addr *);
   81 
   82 nvlist_t        *pf_krule_to_nvrule(struct pf_krule *);
   83 int              pf_nvrule_to_krule(const nvlist_t *, struct pf_krule *);
   84 int              pf_nvstate_kill_to_kstate_kill(const nvlist_t *,
   85                     struct pf_kstate_kill *);
   86 nvlist_t        *pf_state_to_nvstate(const struct pf_kstate *);
   87 
   88 #endif

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FreeBSD/Linux Kernel Cross Reference sys/netpfil/pf/pf_nv.h

FreeBSD/Linux Kernel Cross Reference
sys/netpfil/pf/pf_nv.h