The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008, The Android Open Source Project |
| 3 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 7 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 9 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "NetUtils" |
| 18 | |
| 19 | #include "jni.h" |
Steven Moreland | 2279b25 | 2017-07-19 09:50:45 -0700 | [diff] [blame] | 20 | #include <nativehelper/JNIHelp.h> |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 21 | #include "NetdClient.h" |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 22 | #include <utils/misc.h> |
| 23 | #include <android_runtime/AndroidRuntime.h> |
| 24 | #include <utils/Log.h> |
| 25 | #include <arpa/inet.h> |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 26 | #include <net/if.h> |
| 27 | #include <linux/filter.h> |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 28 | #include <linux/if_arp.h> |
Elliott Hughes | 7691b78 | 2016-05-11 15:18:13 -0700 | [diff] [blame] | 29 | #include <netinet/ether.h> |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 30 | #include <netinet/icmp6.h> |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 31 | #include <netinet/ip.h> |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 32 | #include <netinet/ip6.h> |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 33 | #include <netinet/udp.h> |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 34 | #include <cutils/properties.h> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 35 | |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 36 | #include "core_jni_helpers.h" |
| 37 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | extern "C" { |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 39 | int ifc_enable(const char *ifname); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 40 | int ifc_disable(const char *ifname); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | #define NETUTILS_PKG_NAME "android/net/NetworkUtils" |
| 44 | |
| 45 | namespace android { |
| 46 | |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 47 | static const uint32_t kEtherTypeOffset = offsetof(ether_header, ether_type); |
| 48 | static const uint32_t kEtherHeaderLen = sizeof(ether_header); |
| 49 | static const uint32_t kIPv4Protocol = kEtherHeaderLen + offsetof(iphdr, protocol); |
| 50 | static const uint32_t kIPv4FlagsOffset = kEtherHeaderLen + offsetof(iphdr, frag_off); |
| 51 | static const uint32_t kIPv6NextHeader = kEtherHeaderLen + offsetof(ip6_hdr, ip6_nxt); |
| 52 | static const uint32_t kIPv6PayloadStart = kEtherHeaderLen + sizeof(ip6_hdr); |
| 53 | static const uint32_t kICMPv6TypeOffset = kIPv6PayloadStart + offsetof(icmp6_hdr, icmp6_type); |
| 54 | static const uint32_t kUDPSrcPortIndirectOffset = kEtherHeaderLen + offsetof(udphdr, source); |
| 55 | static const uint32_t kUDPDstPortIndirectOffset = kEtherHeaderLen + offsetof(udphdr, dest); |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 56 | static const uint16_t kDhcpClientPort = 68; |
| 57 | |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 58 | static void android_net_utils_attachDhcpFilter(JNIEnv *env, jobject clazz, jobject javaFd) |
| 59 | { |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 60 | struct sock_filter filter_code[] = { |
| 61 | // Check the protocol is UDP. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 62 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kIPv4Protocol), |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 63 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_UDP, 0, 6), |
| 64 | |
| 65 | // Check this is not a fragment. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 66 | BPF_STMT(BPF_LD | BPF_H | BPF_ABS, kIPv4FlagsOffset), |
| 67 | BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, IP_OFFMASK, 4, 0), |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 68 | |
| 69 | // Get the IP header length. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 70 | BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, kEtherHeaderLen), |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 71 | |
| 72 | // Check the destination port. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 73 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, kUDPDstPortIndirectOffset), |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 74 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, kDhcpClientPort, 0, 1), |
| 75 | |
| 76 | // Accept or reject. |
| 77 | BPF_STMT(BPF_RET | BPF_K, 0xffff), |
| 78 | BPF_STMT(BPF_RET | BPF_K, 0) |
| 79 | }; |
| 80 | struct sock_fprog filter = { |
| 81 | sizeof(filter_code) / sizeof(filter_code[0]), |
| 82 | filter_code, |
| 83 | }; |
| 84 | |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 85 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 86 | if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)) != 0) { |
| 87 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 88 | "setsockopt(SO_ATTACH_FILTER): %s", strerror(errno)); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | static void android_net_utils_attachRaFilter(JNIEnv *env, jobject clazz, jobject javaFd, |
| 93 | jint hardwareAddressType) |
| 94 | { |
| 95 | if (hardwareAddressType != ARPHRD_ETHER) { |
| 96 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 97 | "attachRaFilter only supports ARPHRD_ETHER"); |
| 98 | return; |
| 99 | } |
| 100 | |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 101 | struct sock_filter filter_code[] = { |
| 102 | // Check IPv6 Next Header is ICMPv6. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 103 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kIPv6NextHeader), |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 104 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_ICMPV6, 0, 3), |
| 105 | |
| 106 | // Check ICMPv6 type is Router Advertisement. |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 107 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kICMPv6TypeOffset), |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 108 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ND_ROUTER_ADVERT, 0, 1), |
| 109 | |
| 110 | // Accept or reject. |
| 111 | BPF_STMT(BPF_RET | BPF_K, 0xffff), |
| 112 | BPF_STMT(BPF_RET | BPF_K, 0) |
| 113 | }; |
| 114 | struct sock_fprog filter = { |
| 115 | sizeof(filter_code) / sizeof(filter_code[0]), |
| 116 | filter_code, |
| 117 | }; |
| 118 | |
| 119 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 120 | if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)) != 0) { |
| 121 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 122 | "setsockopt(SO_ATTACH_FILTER): %s", strerror(errno)); |
| 123 | } |
| 124 | } |
| 125 | |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 126 | // TODO: Move all this filter code into libnetutils. |
| 127 | static void android_net_utils_attachControlPacketFilter( |
| 128 | JNIEnv *env, jobject clazz, jobject javaFd, jint hardwareAddressType) { |
| 129 | if (hardwareAddressType != ARPHRD_ETHER) { |
| 130 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 131 | "attachControlPacketFilter only supports ARPHRD_ETHER"); |
| 132 | return; |
| 133 | } |
| 134 | |
| 135 | // Capture all: |
| 136 | // - ARPs |
| 137 | // - DHCPv4 packets |
| 138 | // - Router Advertisements & Solicitations |
| 139 | // - Neighbor Advertisements & Solicitations |
| 140 | // |
| 141 | // tcpdump: |
| 142 | // arp or |
| 143 | // '(ip and udp port 68)' or |
| 144 | // '(icmp6 and ip6[40] >= 133 and ip6[40] <= 136)' |
| 145 | struct sock_filter filter_code[] = { |
| 146 | // Load the link layer next payload field. |
| 147 | BPF_STMT(BPF_LD | BPF_H | BPF_ABS, kEtherTypeOffset), |
| 148 | |
| 149 | // Accept all ARP. |
| 150 | // TODO: Figure out how to better filter ARPs on noisy networks. |
| 151 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ETHERTYPE_ARP, 16, 0), |
| 152 | |
| 153 | // If IPv4: |
| 154 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ETHERTYPE_IP, 0, 9), |
| 155 | |
| 156 | // Check the protocol is UDP. |
| 157 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kIPv4Protocol), |
| 158 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_UDP, 0, 14), |
| 159 | |
| 160 | // Check this is not a fragment. |
| 161 | BPF_STMT(BPF_LD | BPF_H | BPF_ABS, kIPv4FlagsOffset), |
| 162 | BPF_JUMP(BPF_JMP | BPF_JSET | BPF_K, IP_OFFMASK, 12, 0), |
| 163 | |
| 164 | // Get the IP header length. |
| 165 | BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, kEtherHeaderLen), |
| 166 | |
| 167 | // Check the source port. |
| 168 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, kUDPSrcPortIndirectOffset), |
| 169 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, kDhcpClientPort, 8, 0), |
| 170 | |
| 171 | // Check the destination port. |
| 172 | BPF_STMT(BPF_LD | BPF_H | BPF_IND, kUDPDstPortIndirectOffset), |
| 173 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, kDhcpClientPort, 6, 7), |
| 174 | |
| 175 | // IPv6 ... |
| 176 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, ETHERTYPE_IPV6, 0, 6), |
| 177 | // ... check IPv6 Next Header is ICMPv6 (ignore fragments), ... |
| 178 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kIPv6NextHeader), |
| 179 | BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_ICMPV6, 0, 4), |
| 180 | // ... and check the ICMPv6 type is one of RS/RA/NS/NA. |
| 181 | BPF_STMT(BPF_LD | BPF_B | BPF_ABS, kICMPv6TypeOffset), |
| 182 | BPF_JUMP(BPF_JMP | BPF_JGE | BPF_K, ND_ROUTER_SOLICIT, 0, 2), |
| 183 | BPF_JUMP(BPF_JMP | BPF_JGT | BPF_K, ND_NEIGHBOR_ADVERT, 1, 0), |
| 184 | |
| 185 | // Accept or reject. |
| 186 | BPF_STMT(BPF_RET | BPF_K, 0xffff), |
| 187 | BPF_STMT(BPF_RET | BPF_K, 0) |
| 188 | }; |
| 189 | struct sock_fprog filter = { |
| 190 | sizeof(filter_code) / sizeof(filter_code[0]), |
| 191 | filter_code, |
| 192 | }; |
| 193 | |
| 194 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 195 | if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)) != 0) { |
| 196 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 197 | "setsockopt(SO_ATTACH_FILTER): %s", strerror(errno)); |
| 198 | } |
| 199 | } |
| 200 | |
Erik Kline | a3ca6bd | 2016-05-24 20:12:08 +0900 | [diff] [blame] | 201 | static void android_net_utils_setupRaSocket(JNIEnv *env, jobject clazz, jobject javaFd, |
| 202 | jint ifIndex) |
| 203 | { |
| 204 | static const int kLinkLocalHopLimit = 255; |
| 205 | |
| 206 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 207 | |
| 208 | // Set an ICMPv6 filter that only passes Router Solicitations. |
| 209 | struct icmp6_filter rs_only; |
| 210 | ICMP6_FILTER_SETBLOCKALL(&rs_only); |
| 211 | ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &rs_only); |
| 212 | socklen_t len = sizeof(rs_only); |
| 213 | if (setsockopt(fd, IPPROTO_ICMPV6, ICMP6_FILTER, &rs_only, len) != 0) { |
| 214 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 215 | "setsockopt(ICMP6_FILTER): %s", strerror(errno)); |
| 216 | return; |
| 217 | } |
| 218 | |
| 219 | // Most/all of the rest of these options can be set via Java code, but |
| 220 | // because we're here on account of setting an icmp6_filter go ahead |
| 221 | // and do it all natively for now. |
| 222 | // |
| 223 | // TODO: Consider moving these out to Java. |
| 224 | |
| 225 | // Set the multicast hoplimit to 255 (link-local only). |
| 226 | int hops = kLinkLocalHopLimit; |
| 227 | len = sizeof(hops); |
| 228 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, len) != 0) { |
| 229 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 230 | "setsockopt(IPV6_MULTICAST_HOPS): %s", strerror(errno)); |
| 231 | return; |
| 232 | } |
| 233 | |
| 234 | // Set the unicast hoplimit to 255 (link-local only). |
| 235 | hops = kLinkLocalHopLimit; |
| 236 | len = sizeof(hops); |
| 237 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &hops, len) != 0) { |
| 238 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 239 | "setsockopt(IPV6_UNICAST_HOPS): %s", strerror(errno)); |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | // Explicitly disable multicast loopback. |
| 244 | int off = 0; |
| 245 | len = sizeof(off); |
| 246 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, len) != 0) { |
| 247 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 248 | "setsockopt(IPV6_MULTICAST_LOOP): %s", strerror(errno)); |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | // Specify the IPv6 interface to use for outbound multicast. |
| 253 | len = sizeof(ifIndex); |
| 254 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF, &ifIndex, len) != 0) { |
| 255 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 256 | "setsockopt(IPV6_MULTICAST_IF): %s", strerror(errno)); |
| 257 | return; |
| 258 | } |
| 259 | |
| 260 | // Additional options to be considered: |
| 261 | // - IPV6_TCLASS |
| 262 | // - IPV6_RECVPKTINFO |
| 263 | // - IPV6_RECVHOPLIMIT |
| 264 | |
| 265 | // Bind to [::]. |
| 266 | const struct sockaddr_in6 sin6 = { |
| 267 | .sin6_family = AF_INET6, |
| 268 | .sin6_port = 0, |
| 269 | .sin6_flowinfo = 0, |
| 270 | .sin6_addr = IN6ADDR_ANY_INIT, |
| 271 | .sin6_scope_id = 0, |
| 272 | }; |
| 273 | auto sa = reinterpret_cast<const struct sockaddr *>(&sin6); |
| 274 | len = sizeof(sin6); |
| 275 | if (bind(fd, sa, len) != 0) { |
| 276 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 277 | "bind(IN6ADDR_ANY): %s", strerror(errno)); |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | // Join the all-routers multicast group, ff02::2%index. |
| 282 | struct ipv6_mreq all_rtrs = { |
| 283 | .ipv6mr_multiaddr = {{{0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2}}}, |
| 284 | .ipv6mr_interface = ifIndex, |
| 285 | }; |
| 286 | len = sizeof(all_rtrs); |
| 287 | if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &all_rtrs, len) != 0) { |
| 288 | jniThrowExceptionFmt(env, "java/net/SocketException", |
| 289 | "setsockopt(IPV6_JOIN_GROUP): %s", strerror(errno)); |
| 290 | return; |
| 291 | } |
| 292 | } |
| 293 | |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 294 | static jboolean android_net_utils_bindProcessToNetwork(JNIEnv *env, jobject thiz, jint netId) |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 295 | { |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 296 | return (jboolean) !setNetworkForProcess(netId); |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 297 | } |
| 298 | |
Paul Jensen | 72db88e | 2015-03-10 10:54:12 -0400 | [diff] [blame] | 299 | static jint android_net_utils_getBoundNetworkForProcess(JNIEnv *env, jobject thiz) |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 300 | { |
| 301 | return getNetworkForProcess(); |
| 302 | } |
| 303 | |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 304 | static jboolean android_net_utils_bindProcessToNetworkForHostResolution(JNIEnv *env, jobject thiz, |
| 305 | jint netId) |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 306 | { |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 307 | return (jboolean) !setNetworkForResolv(netId); |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 308 | } |
| 309 | |
Lorenzo Colitti | 9f1274b | 2014-08-21 11:45:54 -0700 | [diff] [blame] | 310 | static jint android_net_utils_bindSocketToNetwork(JNIEnv *env, jobject thiz, jint socket, |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 311 | jint netId) |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 312 | { |
Lorenzo Colitti | 9f1274b | 2014-08-21 11:45:54 -0700 | [diff] [blame] | 313 | return setNetworkForSocket(netId, socket); |
Paul Jensen | 3876495 | 2014-05-20 11:25:35 -0400 | [diff] [blame] | 314 | } |
| 315 | |
Paul Jensen | 6bc2c2c | 2014-05-07 15:27:40 -0400 | [diff] [blame] | 316 | static jboolean android_net_utils_protectFromVpn(JNIEnv *env, jobject thiz, jint socket) |
| 317 | { |
| 318 | return (jboolean) !protectFromVpn(socket); |
| 319 | } |
| 320 | |
Paul Jensen | cee9b51 | 2015-05-06 07:32:40 -0400 | [diff] [blame] | 321 | static jboolean android_net_utils_queryUserAccess(JNIEnv *env, jobject thiz, jint uid, jint netId) |
| 322 | { |
| 323 | return (jboolean) !queryUserAccess(uid, netId); |
| 324 | } |
| 325 | |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 326 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 327 | // ---------------------------------------------------------------------------- |
| 328 | |
| 329 | /* |
| 330 | * JNI registration. |
| 331 | */ |
Daniel Micay | 76f6a86 | 2015-09-19 17:31:01 -0400 | [diff] [blame] | 332 | static const JNINativeMethod gNetworkUtilMethods[] = { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 333 | /* name, signature, funcPtr */ |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 334 | { "bindProcessToNetwork", "(I)Z", (void*) android_net_utils_bindProcessToNetwork }, |
Paul Jensen | 72db88e | 2015-03-10 10:54:12 -0400 | [diff] [blame] | 335 | { "getBoundNetworkForProcess", "()I", (void*) android_net_utils_getBoundNetworkForProcess }, |
Paul Jensen | 32a58f0 | 2014-06-20 13:58:14 -0400 | [diff] [blame] | 336 | { "bindProcessToNetworkForHostResolution", "(I)Z", (void*) android_net_utils_bindProcessToNetworkForHostResolution }, |
Lorenzo Colitti | 9f1274b | 2014-08-21 11:45:54 -0700 | [diff] [blame] | 337 | { "bindSocketToNetwork", "(II)I", (void*) android_net_utils_bindSocketToNetwork }, |
Paul Jensen | 6bc2c2c | 2014-05-07 15:27:40 -0400 | [diff] [blame] | 338 | { "protectFromVpn", "(I)Z", (void*)android_net_utils_protectFromVpn }, |
Paul Jensen | cee9b51 | 2015-05-06 07:32:40 -0400 | [diff] [blame] | 339 | { "queryUserAccess", "(II)Z", (void*)android_net_utils_queryUserAccess }, |
Lorenzo Colitti | cbe4f7c | 2015-03-06 19:57:39 +0900 | [diff] [blame] | 340 | { "attachDhcpFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_attachDhcpFilter }, |
Paul Jensen | 578a76e | 2016-01-14 14:54:39 -0500 | [diff] [blame] | 341 | { "attachRaFilter", "(Ljava/io/FileDescriptor;I)V", (void*) android_net_utils_attachRaFilter }, |
Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 342 | { "attachControlPacketFilter", "(Ljava/io/FileDescriptor;I)V", (void*) android_net_utils_attachControlPacketFilter }, |
Erik Kline | a3ca6bd | 2016-05-24 20:12:08 +0900 | [diff] [blame] | 343 | { "setupRaSocket", "(Ljava/io/FileDescriptor;I)V", (void*) android_net_utils_setupRaSocket }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 344 | }; |
| 345 | |
| 346 | int register_android_net_NetworkUtils(JNIEnv* env) |
| 347 | { |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 348 | return RegisterMethodsOrDie(env, NETUTILS_PKG_NAME, gNetworkUtilMethods, |
| 349 | NELEM(gNetworkUtilMethods)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | }; // namespace android |