contrib/dhcpcd/src/privsep-root.h

   1 /* SPDX-License-Identifier: BSD-2-Clause */
   2 /*
   3  * Privilege Separation for dhcpcd
   4  * Copyright (c) 2006-2023 Roy Marples <roy@marples.name>
   5  * All rights reserved
   6
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef PRIVSEP_ROOT_H
  30 #define PRIVSEP_ROOT_H
  31
  32 #include "if.h"
  33
  34 #if defined(PRIVSEP) && (defined(HAVE_CAPSICUM) || defined(__linux__))
  35 #define PRIVSEP_GETIFADDRS
  36 #endif
  37
  38 pid_t ps_root_start(struct dhcpcd_ctx *ctx);
  39 void ps_root_close(struct dhcpcd_ctx *ctx);
  40 int ps_root_stop(struct dhcpcd_ctx *ctx);
  41 void ps_root_signalcb(int, void *);
  42
  43 ssize_t ps_root_readerror(struct dhcpcd_ctx *, void *, size_t);
  44 ssize_t ps_root_mreaderror(struct dhcpcd_ctx *, void **, size_t *);
  45 ssize_t ps_root_ioctl(struct dhcpcd_ctx *, ioctl_request_t, void *, size_t);
  46 ssize_t ps_root_ip6forwarding(struct dhcpcd_ctx *, const char *);
  47 ssize_t ps_root_unlink(struct dhcpcd_ctx *, const char *);
  48 ssize_t ps_root_filemtime(struct dhcpcd_ctx *, const char *, time_t *);
  49 ssize_t ps_root_readfile(struct dhcpcd_ctx *, const char *, void *, size_t);
  50 ssize_t ps_root_writefile(struct dhcpcd_ctx *, const char *, mode_t,
  51     const void *, size_t);
  52 ssize_t ps_root_logreopen(struct dhcpcd_ctx *);
  53 ssize_t ps_root_script(struct dhcpcd_ctx *, const void *, size_t);
  54 ssize_t ps_root_stopprocesses(struct dhcpcd_ctx *);
  55 int ps_root_getauthrdm(struct dhcpcd_ctx *, uint64_t *);
  56 #ifdef PRIVSEP_GETIFADDRS
  57 int ps_root_getifaddrs(struct dhcpcd_ctx *, struct ifaddrs **);
  58 #endif
  59
  60 ssize_t ps_root_os(struct dhcpcd_ctx *, struct ps_msghdr *, struct msghdr *,
  61     void **, size_t *, bool *);
  62 #if defined(BSD) || defined(__sun)
  63 ssize_t ps_root_route(struct dhcpcd_ctx *, void *, size_t);
  64 ssize_t ps_root_ioctllink(struct dhcpcd_ctx *, unsigned long, void *, size_t);
  65 ssize_t ps_root_ioctl6(struct dhcpcd_ctx *, unsigned long, void *, size_t);
  66 ssize_t ps_root_indirectioctl(struct dhcpcd_ctx *, unsigned long, const char *,
  67     void *, size_t);
  68 ssize_t ps_root_ifignoregroup(struct dhcpcd_ctx *, const char *);
  69 ssize_t ps_root_sysctl(struct dhcpcd_ctx *, const int *, unsigned int,
  70     void *, size_t *, const void *, size_t);
  71 #endif
  72 #ifdef __linux__
  73 ssize_t ps_root_sendnetlink(struct dhcpcd_ctx *, int, struct msghdr *);
  74 #endif
  75
  76 #ifdef PLUGIN_DEV
  77 int ps_root_dev_initialised(struct dhcpcd_ctx *, const char *);
  78 int ps_root_dev_listening(struct dhcpcd_ctx *);
  79 #endif
  80
  81 #endif