1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #ifndef _RESOLV_NETID_H 29 #define _RESOLV_NETID_H 30 31 /* This header contains declarations related to per-network DNS 32 * server selection. They are used by system/netd/ and should not be 33 * exposed by the C library's public NDK headers. 34 */ 35 #include <sys/cdefs.h> 36 #include <netinet/in.h> 37 38 /* 39 * Passing NETID_UNSET as the netId causes system/netd/server/DnsProxyListener.cpp to 40 * fill in the appropriate default netId for the query. 41 */ 42 #define NETID_UNSET 0u 43 44 /* 45 * MARK_UNSET represents the default (i.e. unset) value for a socket mark. 46 */ 47 #define MARK_UNSET 0u 48 49 __BEGIN_DECLS 50 51 struct addrinfo; 52 53 #define __used_in_netd __attribute__((visibility ("default"))) 54 55 struct hostent *android_gethostbyaddrfornet(const void *, socklen_t, int, unsigned, unsigned) __used_in_netd; 56 struct hostent *android_gethostbynamefornet(const char *, int, unsigned, unsigned) __used_in_netd; 57 int android_getaddrinfofornet(const char *, const char *, const struct addrinfo *, unsigned, 58 unsigned, struct addrinfo **) __used_in_netd; 59 60 /* set name servers for a network */ 61 extern void _resolv_set_nameservers_for_net(unsigned netid, 62 const char** servers, int numservers, const char *domains) __used_in_netd; 63 64 /* flush the cache associated with a certain network */ 65 extern void _resolv_flush_cache_for_net(unsigned netid) __used_in_netd; 66 67 /* delete the cache associated with a certain network */ 68 extern void _resolv_delete_cache_for_net(unsigned netid) __used_in_netd; 69 70 /* Internal use only. */ 71 struct hostent *android_gethostbyaddrfornet_proxy(const void *, socklen_t, int , unsigned); 72 int android_getnameinfofornet(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t, 73 int, unsigned, unsigned); 74 75 /* delete the cache associated with a certain network */ 76 extern void _resolv_delete_cache_for_net(unsigned netid); 77 78 __END_DECLS 79 80 #endif /* _RESOLV_NETID_H */ 81