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-rw-r--r--thirdparty/misc/ifaddrs-android.cc221
-rw-r--r--thirdparty/misc/ifaddrs-android.h46
2 files changed, 267 insertions, 0 deletions
diff --git a/thirdparty/misc/ifaddrs-android.cc b/thirdparty/misc/ifaddrs-android.cc
new file mode 100644
index 0000000000..1f8835b829
--- /dev/null
+++ b/thirdparty/misc/ifaddrs-android.cc
@@ -0,0 +1,221 @@
+/*
+ * libjingle
+ * Copyright 2012, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ifaddrs-android.h"
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/utsname.h>
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <unistd.h>
+#include <errno.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+struct netlinkrequest {
+ nlmsghdr header;
+ ifaddrmsg msg;
+};
+namespace {
+const int kMaxReadSize = 4096;
+};
+int set_ifname(struct ifaddrs* ifaddr, int interface) {
+ char buf[IFNAMSIZ] = {0};
+ char* name = if_indextoname(interface, buf);
+ if (name == NULL) {
+ return -1;
+ }
+ ifaddr->ifa_name = new char[strlen(name) + 1];
+ strncpy(ifaddr->ifa_name, name, strlen(name) + 1);
+ return 0;
+}
+int set_flags(struct ifaddrs* ifaddr) {
+ int fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd == -1) {
+ return -1;
+ }
+ ifreq ifr;
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, ifaddr->ifa_name, IFNAMSIZ - 1);
+ int rc = ioctl(fd, SIOCGIFFLAGS, &ifr);
+ close(fd);
+ if (rc == -1) {
+ return -1;
+ }
+ ifaddr->ifa_flags = ifr.ifr_flags;
+ return 0;
+}
+int set_addresses(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* data,
+ size_t len) {
+ if (msg->ifa_family == AF_INET) {
+ sockaddr_in* sa = new sockaddr_in;
+ sa->sin_family = AF_INET;
+ memcpy(&sa->sin_addr, data, len);
+ ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
+ } else if (msg->ifa_family == AF_INET6) {
+ sockaddr_in6* sa = new sockaddr_in6;
+ sa->sin6_family = AF_INET6;
+ sa->sin6_scope_id = msg->ifa_index;
+ memcpy(&sa->sin6_addr, data, len);
+ ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
+ } else {
+ return -1;
+ }
+ return 0;
+}
+int make_prefixes(struct ifaddrs* ifaddr, int family, int prefixlen) {
+ char* prefix = NULL;
+ if (family == AF_INET) {
+ sockaddr_in* mask = new sockaddr_in;
+ mask->sin_family = AF_INET;
+ memset(&mask->sin_addr, 0, sizeof(in_addr));
+ ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
+ if (prefixlen > 32) {
+ prefixlen = 32;
+ }
+ prefix = reinterpret_cast<char*>(&mask->sin_addr);
+ } else if (family == AF_INET6) {
+ sockaddr_in6* mask = new sockaddr_in6;
+ mask->sin6_family = AF_INET6;
+ memset(&mask->sin6_addr, 0, sizeof(in6_addr));
+ ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
+ if (prefixlen > 128) {
+ prefixlen = 128;
+ }
+ prefix = reinterpret_cast<char*>(&mask->sin6_addr);
+ } else {
+ return -1;
+ }
+ for (int i = 0; i < (prefixlen / 8); i++) {
+ *prefix++ = 0xFF;
+ }
+ char remainder = 0xff;
+ remainder <<= (8 - prefixlen % 8);
+ *prefix = remainder;
+ return 0;
+}
+int populate_ifaddrs(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* bytes,
+ size_t len) {
+ if (set_ifname(ifaddr, msg->ifa_index) != 0) {
+ return -1;
+ }
+ if (set_flags(ifaddr) != 0) {
+ return -1;
+ }
+ if (set_addresses(ifaddr, msg, bytes, len) != 0) {
+ return -1;
+ }
+ if (make_prefixes(ifaddr, msg->ifa_family, msg->ifa_prefixlen) != 0) {
+ return -1;
+ }
+ return 0;
+}
+int getifaddrs(struct ifaddrs** result) {
+ int fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (fd < 0) {
+ return -1;
+ }
+ netlinkrequest ifaddr_request;
+ memset(&ifaddr_request, 0, sizeof(ifaddr_request));
+ ifaddr_request.header.nlmsg_flags = NLM_F_ROOT | NLM_F_REQUEST;
+ ifaddr_request.header.nlmsg_type = RTM_GETADDR;
+ ifaddr_request.header.nlmsg_len = NLMSG_LENGTH(sizeof(ifaddrmsg));
+ ssize_t count = send(fd, &ifaddr_request, ifaddr_request.header.nlmsg_len, 0);
+ if (static_cast<size_t>(count) != ifaddr_request.header.nlmsg_len) {
+ close(fd);
+ return -1;
+ }
+ struct ifaddrs* start = NULL;
+ struct ifaddrs* current = NULL;
+ char buf[kMaxReadSize];
+ ssize_t amount_read = recv(fd, &buf, kMaxReadSize, 0);
+ while (amount_read > 0) {
+ nlmsghdr* header = reinterpret_cast<nlmsghdr*>(&buf[0]);
+ size_t header_size = static_cast<size_t>(amount_read);
+ for ( ; NLMSG_OK(header, header_size);
+ header = NLMSG_NEXT(header, header_size)) {
+ switch (header->nlmsg_type) {
+ case NLMSG_DONE:
+ // Success. Return.
+ *result = start;
+ close(fd);
+ return 0;
+ case NLMSG_ERROR:
+ close(fd);
+ freeifaddrs(start);
+ return -1;
+ case RTM_NEWADDR: {
+ ifaddrmsg* address_msg =
+ reinterpret_cast<ifaddrmsg*>(NLMSG_DATA(header));
+ rtattr* rta = IFA_RTA(address_msg);
+ ssize_t payload_len = IFA_PAYLOAD(header);
+ while (RTA_OK(rta, payload_len)) {
+ if (rta->rta_type == IFA_ADDRESS) {
+ int family = address_msg->ifa_family;
+ if (family == AF_INET || family == AF_INET6) {
+ ifaddrs* newest = new ifaddrs;
+ memset(newest, 0, sizeof(ifaddrs));
+ if (current) {
+ current->ifa_next = newest;
+ } else {
+ start = newest;
+ }
+ if (populate_ifaddrs(newest, address_msg, RTA_DATA(rta),
+ RTA_PAYLOAD(rta)) != 0) {
+ freeifaddrs(start);
+ *result = NULL;
+ return -1;
+ }
+ current = newest;
+ }
+ }
+ rta = RTA_NEXT(rta, payload_len);
+ }
+ break;
+ }
+ }
+ }
+ amount_read = recv(fd, &buf, kMaxReadSize, 0);
+ }
+ close(fd);
+ freeifaddrs(start);
+ return -1;
+}
+void freeifaddrs(struct ifaddrs* addrs) {
+ struct ifaddrs* last = NULL;
+ struct ifaddrs* cursor = addrs;
+ while (cursor) {
+ delete[] cursor->ifa_name;
+ delete cursor->ifa_addr;
+ delete cursor->ifa_netmask;
+ last = cursor;
+ cursor = cursor->ifa_next;
+ delete last;
+ }
+}
diff --git a/thirdparty/misc/ifaddrs-android.h b/thirdparty/misc/ifaddrs-android.h
new file mode 100644
index 0000000000..6e204af26f
--- /dev/null
+++ b/thirdparty/misc/ifaddrs-android.h
@@ -0,0 +1,46 @@
+/*
+ * libjingle
+ * Copyright 2013, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef TALK_BASE_IFADDRS_ANDROID_H_
+#define TALK_BASE_IFADDRS_ANDROID_H_
+#include <stdio.h>
+#include <sys/socket.h>
+// Implementation of getifaddrs for Android.
+// Fills out a list of ifaddr structs (see below) which contain information
+// about every network interface available on the host.
+// See 'man getifaddrs' on Linux or OS X (nb: it is not a POSIX function).
+struct ifaddrs {
+ struct ifaddrs* ifa_next;
+ char* ifa_name;
+ unsigned int ifa_flags;
+ struct sockaddr* ifa_addr;
+ struct sockaddr* ifa_netmask;
+ // Real ifaddrs has broadcast, point to point and data members.
+ // We don't need them (yet?).
+};
+int getifaddrs(struct ifaddrs** result);
+void freeifaddrs(struct ifaddrs* addrs);
+#endif // TALK_BASE_IFADDRS_ANDROID_H_
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