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 82