void AndroidGetAddr() {
if (ifc_init()) {
return;
}
in_addr_t addr;
ifc_get_info("tiwlan0", &addr, 0, 0);
myAddr = addr;
ifc_close();
}
int ifc_reset_connections(const char *ifname, const int reset_mask)
{
#ifdef HAVE_ANDROID_OS
int result = 0, success;
in_addr_t myaddr = 0;
struct ifreq ifr;
struct in6_ifreq ifr6;
int ctl_sock = -1;
if (reset_mask & RESET_IPV4_ADDRESSES) {
/* IPv4. Clear connections on the IP address. */
ctl_sock = socket(AF_INET, SOCK_DGRAM, 0);
if (ctl_sock >= 0) {
if (!(reset_mask & RESET_IGNORE_INTERFACE_ADDRESS)) {
ifc_get_info(ifname, &myaddr, NULL, NULL);
}
ifc_init_ifr(ifname, &ifr);
init_sockaddr_in(&ifr.ifr_addr, myaddr);
result = ioctl(ctl_sock, SIOCKILLADDR, &ifr);
close(ctl_sock);
} else {
result = -1;
}
}
if (reset_mask & RESET_IPV6_ADDRESSES) {
/*
* IPv6. On Linux, when an interface goes down it loses all its IPv6
* addresses, so we don't know which connections belonged to that interface
* So we clear all unused IPv6 connections on the device by specifying an
* empty IPv6 address.
*/
ctl_sock = socket(AF_INET6, SOCK_DGRAM, 0);
// This implicitly specifies an address of ::, i.e., kill all IPv6 sockets.
memset(&ifr6, 0, sizeof(ifr6));
if (ctl_sock >= 0) {
success = ioctl(ctl_sock, SIOCKILLADDR, &ifr6);
if (result == 0) {
result = success;
}
close(ctl_sock);
} else {
result = -1;
}
}
return result;
#else
return 0;
#endif
}
int ifc_reset_connections(const char *ifname)
{
#ifdef HAVE_ANDROID_OS
int result;
in_addr_t myaddr;
struct ifreq ifr;
ifc_init();
ifc_get_info(ifname, &myaddr, NULL, NULL);
ifc_init_ifr(ifname, &ifr);
init_sockaddr_in(&ifr.ifr_addr, myaddr);
result = ioctl(ifc_ctl_sock, SIOCKILLADDR, &ifr);
ifc_close();
return result;
#else
return 0;
#endif
}
int dump_interface(const char *name)
{
unsigned addr, flags;
unsigned char hwbuf[ETH_ALEN];
int prefixLength;
if(ifc_get_info(name, &addr, &prefixLength, &flags)) {
return 0;
}
printf("%-8s %s ", name, flags & 1 ? "UP " : "DOWN");
printf("%40s", ipaddr(addr));
printf("/%-4d", prefixLength);
printf("0x%08x ", flags);
if (!ifc_get_hwaddr(name, hwbuf)) {
int i;
for(i=0; i < (ETH_ALEN-1); i++)
printf("%02x:", hwbuf[i]);
printf("%02x\n", hwbuf[i]);
} else {
printf("\n");
}
return 0;
}
void* SetupData(void* t)
{
//this should never happen but let's check
if(pppd_pid!=0 ) {
LOGD(" waiting pppd to die");
int status=0;
kill(pppd_pid, SIGTERM);
waitpid(pppd_pid, &status, 0);
}
//reset ppp.dns
property_set("net.ppp0.dns1", "0.0.0.0");
property_set("net.ppp0.dns2", "0.0.0.0");
strcpy(current_addr, "255.255.255.255");
pthread_t thread;
pthread_create(&thread, NULL, pppd_thread, NULL);
//wait for pppd connect
if(ifc_init()) {
LOGE("%s: IFC failed to init", logtime());
sleep(7);
} else {
clock_t start=clock();
//loop till timeout or connected
while(1) {
//check if ppp0 interface is up, if true break loop, else record dnschange value
unsigned addr, mask, flags;
ifc_get_info("ppp0", &addr, &mask, &flags);
if(flags & 1)
{
struct in_addr in_addr = {.s_addr=addr};
strcpy(current_addr, inet_ntoa(in_addr));
LOGD("%s: IP: %s", logtime(),current_addr);
break;
}
//if timeout goto error
if ( (clock()-start)/CLOCKS_PER_SEC > 60 ){
LOGE("%s: ppp0 connect timed out, giving up", logtime());
ifc_close();
goto error;
}
int status, pid=pppd_pid;
if(pid==0 || waitpid(pid, &status, WNOHANG)>0){
LOGE("%s: ppp0 connect timed out, giving up", logtime());
ifc_close();
goto error;
}
msleep(100);
}
}
ifc_close();
//if ip-up exists wait for dns change
char dns1[PROPERTY_VALUE_MAX];
char dns2[PROPERTY_VALUE_MAX];
struct stat sts;
if(stat("/etc/ppp/ip-up", &sts)==0 && (S_ISREG(sts.st_mode) || S_ISLNK(sts.st_mode))) {
clock_t start=clock();
while(1) {
//check if dnschange changed
property_get("net.ppp0.dns1", dns1, "0.0.0.0");
property_get("net.ppp0.dns2", dns2, "0.0.0.0");
if(strcmp(dns1, "0.0.0.0")!=0 && strcmp(dns2, "0.0.0.0")!=0) break;
if((clock()-start)/CLOCKS_PER_SEC > 2) {
LOGE("%s: timeout waiting for dns change", logtime());
break;
}
msleep(100);
}
}
//check ppp.dns values and set defaults if suspect wrong
property_get("net.ppp0.dns1", dns1, "");
if(strlen(dns1)<7 || strcmp(dns1,"0.0.0.0")==0 || strcmp(dns1, "10.11.12.13")==0) {
LOGD("%s: DNS1: %s wrong setting to 8.8.8.8", logtime(),dns1);
property_set("net.ppp0.dns1", "8.8.8.8");
} else {
LOGD("%s: DNS1: %s", logtime(),dns1);
}
property_get("net.ppp0.dns2", dns2, "");
if(strlen(dns2)<7 || strcmp(dns2, "0.0.0.0")==0 || strcmp(dns2, "10.11.12.14")==0) {
LOGD("%s: DNS2: %s wrong setting to 8.8.4.4", logtime(),dns2);
property_set("net.ppp0.dns2", "8.8.4.4");
} else {
LOGD("%s: DNS2: %s", logtime(),dns2);
}
char *response[3] = { "1", "ppp0", current_addr };
dataConnectionState=DATA_STATE_CONNECTED;
RIL_onRequestComplete(t, RIL_E_SUCCESS, response, sizeof(response));
return NULL;
error:
dataConnectionState=DATA_STATE_DISCONNECTED;
RIL_onRequestComplete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
return NULL;
}
int CommandListener::InterfaceCmd::runCommand(SocketClient *cli,
int argc, char **argv) {
if (argc < 2) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
if (!strcmp(argv[1], "list")) {
DIR *d;
struct dirent *de;
if (!(d = opendir("/sys/class/net"))) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to open sysfs dir", true);
return 0;
}
while((de = readdir(d))) {
if (de->d_name[0] == '.')
continue;
cli->sendMsg(ResponseCode::InterfaceListResult, de->d_name, false);
}
closedir(d);
cli->sendMsg(ResponseCode::CommandOkay, "Interface list completed", false);
return 0;
} else if (!strcmp(argv[1], "readrxcounter")) {
if (argc != 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface readrxcounter <interface>", false);
return 0;
}
unsigned long rx = 0, tx = 0;
if (readInterfaceCounters(argv[2], &rx, &tx)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
return 0;
}
char *msg;
asprintf(&msg, "%lu", rx);
cli->sendMsg(ResponseCode::InterfaceRxCounterResult, msg, false);
free(msg);
return 0;
} else if (!strcmp(argv[1], "readtxcounter")) {
if (argc != 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface readtxcounter <interface>", false);
return 0;
}
unsigned long rx = 0, tx = 0;
if (readInterfaceCounters(argv[2], &rx, &tx)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
return 0;
}
char *msg = NULL;
asprintf(&msg, "%lu", tx);
cli->sendMsg(ResponseCode::InterfaceTxCounterResult, msg, false);
free(msg);
return 0;
} else if (!strcmp(argv[1], "getthrottle")) {
if (argc != 4 || (argc == 4 && (strcmp(argv[3], "rx") && (strcmp(argv[3], "tx"))))) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface getthrottle <interface> <rx|tx>", false);
return 0;
}
int val = 0;
int rc = 0;
int voldRc = ResponseCode::InterfaceRxThrottleResult;
if (!strcmp(argv[3], "rx")) {
rc = ThrottleController::getInterfaceRxThrottle(argv[2], &val);
} else {
rc = ThrottleController::getInterfaceTxThrottle(argv[2], &val);
voldRc = ResponseCode::InterfaceTxThrottleResult;
}
if (rc) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to get throttle", true);
} else {
char *msg = NULL;
asprintf(&msg, "%u", val);
cli->sendMsg(voldRc, msg, false);
free(msg);
return 0;
}
return 0;
} else if (!strcmp(argv[1], "setthrottle")) {
if (argc != 5) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface setthrottle <interface> <rx_kbps> <tx_kbps>", false);
return 0;
}
if (ThrottleController::setInterfaceThrottle(argv[2], atoi(argv[3]), atoi(argv[4]))) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set throttle", true);
} else {
cli->sendMsg(ResponseCode::CommandOkay, "Interface throttling set", false);
}
return 0;
} else {
/*
* These commands take a minimum of 3 arguments
*/
if (argc < 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
if (!strcmp(argv[1], "getcfg")) {
struct in_addr addr, mask;
unsigned char hwaddr[6];
unsigned flags = 0;
ifc_init();
memset(hwaddr, 0, sizeof(hwaddr));
if (ifc_get_info(argv[2], &addr.s_addr, &mask.s_addr, &flags)) {
cli->sendMsg(ResponseCode::OperationFailed, "Interface not found", true);
return 0;
}
if (ifc_get_hwaddr(argv[2], (void *) hwaddr)) {
LOGW("Failed to retrieve HW addr for %s (%s)", argv[2], strerror(errno));
}
char *addr_s = strdup(inet_ntoa(addr));
char *mask_s = strdup(inet_ntoa(mask));
const char *updown, *brdcst, *loopbk, *ppp, *running, *multi;
updown = (flags & IFF_UP) ? "up" : "down";
brdcst = (flags & IFF_BROADCAST) ? " broadcast" : "";
loopbk = (flags & IFF_LOOPBACK) ? " loopback" : "";
ppp = (flags & IFF_POINTOPOINT) ? " point-to-point" : "";
running = (flags & IFF_RUNNING) ? " running" : "";
multi = (flags & IFF_MULTICAST) ? " multicast" : "";
char *flag_s;
asprintf(&flag_s, "[%s%s%s%s%s%s]", updown, brdcst, loopbk, ppp, running, multi);
char *msg = NULL;
asprintf(&msg, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x %s %s %s",
hwaddr[0], hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5],
addr_s, mask_s, flag_s);
cli->sendMsg(ResponseCode::InterfaceGetCfgResult, msg, false);
free(addr_s);
free(mask_s);
free(flag_s);
free(msg);
return 0;
} else if (!strcmp(argv[1], "setcfg")) {
// arglist: iface addr mask [flags]
if (argc < 5) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
LOGD("Setting iface cfg");
struct in_addr addr, mask;
unsigned flags = 0;
if (!inet_aton(argv[3], &addr)) {
cli->sendMsg(ResponseCode::CommandParameterError, "Invalid address", false);
return 0;
}
if (!inet_aton(argv[4], &mask)) {
cli->sendMsg(ResponseCode::CommandParameterError, "Invalid netmask", false);
return 0;
}
ifc_init();
if (ifc_set_addr(argv[2], addr.s_addr)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set address", true);
return 0;
}
if (ifc_set_mask(argv[2], mask.s_addr)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set netmask", true);
return 0;
}
/* Process flags */
/* read from "[XX" arg to "YY]" arg */
bool bStarted = false;
for (int i = 5; i < argc; i++) {
char *flag = argv[i];
if (!bStarted) {
if (*flag == '[') {
flag++;
bStarted = true;
} else {
continue;
}
}
int len = strlen(flag);
if (flag[len-1] == ']') {
i = argc; // stop after this loop
flag[len-1] = 0;
}
if (!strcmp(flag, "up")) {
LOGD("Trying to bring up %s", argv[2]);
if (ifc_up(argv[2])) {
LOGE("Error upping interface");
cli->sendMsg(ResponseCode::OperationFailed, "Failed to up interface", true);
return 0;
}
} else if (!strcmp(flag, "down")) {
LOGD("Trying to bring down %s", argv[2]);
if (ifc_down(argv[2])) {
LOGE("Error downing interface");
cli->sendMsg(ResponseCode::OperationFailed, "Failed to down interface", true);
return 0;
}
} else if (!strcmp(flag, "broadcast")) {
LOGD("broadcast flag ignored");
} else if (!strcmp(flag, "multicast")) {
LOGD("multicast flag ignored");
} else {
cli->sendMsg(ResponseCode::CommandParameterError, "Flag unsupported", false);
return 0;
}
}
cli->sendMsg(ResponseCode::CommandOkay, "Interface configuration set", false);
return 0;
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
return 0;
}
}
return 0;
}
int CommandListener::ResolverCmd::runCommand(SocketClient *cli, int argc, char **argv) {
int rc = 0;
struct in_addr addr;
if (argc < 2) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Resolver missing arguments", false);
return 0;
}
if (!strcmp(argv[1], "setdefaultif")) { // "resolver setdefaultif <iface>"
if (argc == 3) {
rc = sResolverCtrl->setDefaultInterface(argv[2]);
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Wrong number of arguments to resolver setdefaultif", false);
return 0;
}
} else if (!strcmp(argv[1], "setifdns")) { // "resolver setifdns <iface> <dns1> <dns2> ..."
if (argc >= 4) {
rc = sResolverCtrl->setInterfaceDnsServers(argv[2], &argv[3], argc - 3);
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Wrong number of arguments to resolver setifdns", false);
return 0;
}
// set the address of the interface to which the name servers
// are bound. Required in order to bind to right interface when
// doing the dns query.
if (!rc) {
ifc_init();
ifc_get_info(argv[2], &addr.s_addr, NULL, 0);
rc = sResolverCtrl->setInterfaceAddress(argv[2], &addr);
}
} else if (!strcmp(argv[1], "flushdefaultif")) { // "resolver flushdefaultif"
if (argc == 2) {
rc = sResolverCtrl->flushDefaultDnsCache();
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Wrong number of arguments to resolver flushdefaultif", false);
return 0;
}
} else if (!strcmp(argv[1], "flushif")) { // "resolver flushif <iface>"
if (argc == 3) {
rc = sResolverCtrl->flushInterfaceDnsCache(argv[2]);
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Wrong number of arguments to resolver setdefaultif", false);
return 0;
}
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError,"Resolver unknown command", false);
return 0;
}
if (!rc) {
cli->sendMsg(ResponseCode::CommandOkay, "Resolver command succeeded", false);
} else {
cli->sendMsg(ResponseCode::OperationFailed, "Resolver command failed", true);
}
return 0;
}
int CommandListener::InterfaceCmd::runCommand(SocketClient *cli,
int argc, char **argv) {
if (argc < 2) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
if (!strcmp(argv[1], "list")) {
DIR *d;
struct dirent *de;
if (!(d = opendir("/sys/class/net"))) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to open sysfs dir", true);
return 0;
}
while((de = readdir(d))) {
if (de->d_name[0] == '.')
continue;
cli->sendMsg(ResponseCode::InterfaceListResult, de->d_name, false);
}
closedir(d);
cli->sendMsg(ResponseCode::CommandOkay, "Interface list completed", false);
return 0;
} else if (!strcmp(argv[1], "readrxcounter")) {
if (argc != 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface readrxcounter <interface>", false);
return 0;
}
unsigned long rx = 0, tx = 0;
if (readInterfaceCounters(argv[2], &rx, &tx)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
return 0;
}
char *msg;
asprintf(&msg, "%lu", rx);
cli->sendMsg(ResponseCode::InterfaceRxCounterResult, msg, false);
free(msg);
return 0;
} else if (!strcmp(argv[1], "readtxcounter")) {
if (argc != 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface readtxcounter <interface>", false);
return 0;
}
unsigned long rx = 0, tx = 0;
if (readInterfaceCounters(argv[2], &rx, &tx)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
return 0;
}
char *msg = NULL;
asprintf(&msg, "%lu", tx);
cli->sendMsg(ResponseCode::InterfaceTxCounterResult, msg, false);
free(msg);
return 0;
} else if (!strcmp(argv[1], "getthrottle")) {
if (argc != 4 || (argc == 4 && (strcmp(argv[3], "rx") && (strcmp(argv[3], "tx"))))) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface getthrottle <interface> <rx|tx>", false);
return 0;
}
int val = 0;
int rc = 0;
int voldRc = ResponseCode::InterfaceRxThrottleResult;
if (!strcmp(argv[3], "rx")) {
rc = ThrottleController::getInterfaceRxThrottle(argv[2], &val);
} else {
rc = ThrottleController::getInterfaceTxThrottle(argv[2], &val);
voldRc = ResponseCode::InterfaceTxThrottleResult;
}
if (rc) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to get throttle", true);
} else {
char *msg = NULL;
asprintf(&msg, "%u", val);
cli->sendMsg(voldRc, msg, false);
free(msg);
return 0;
}
return 0;
} else if (!strcmp(argv[1], "setthrottle")) {
if (argc != 5) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface setthrottle <interface> <rx_kbps> <tx_kbps>", false);
return 0;
}
if (ThrottleController::setInterfaceThrottle(argv[2], atoi(argv[3]), atoi(argv[4]))) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set throttle", true);
} else {
cli->sendMsg(ResponseCode::CommandOkay, "Interface throttling set", false);
}
return 0;
} else if (!strcmp(argv[1], "driver")) {
int rc;
char *rbuf;
if (argc < 4) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface driver <interface> <cmd> <args>", false);
return 0;
}
rc = sInterfaceCtrl->interfaceCommand(argc, argv, &rbuf);
if (rc) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to execute command", true);
} else {
cli->sendMsg(ResponseCode::CommandOkay, rbuf, false);
}
return 0;
} else {
/*
* These commands take a minimum of 3 arguments
*/
if (argc < 3) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
// 0 1 2 3 4 5 6 7
// interface route add/remove iface default/secondary dest prefix gateway
if (!strcmp(argv[1], "route")) {
int prefix_length = 0;
if (argc < 8) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
if (sscanf(argv[6], "%d", &prefix_length) != 1) {
cli->sendMsg(ResponseCode::CommandParameterError, "Invalid route prefix", false);
return 0;
}
if (!strcmp(argv[2], "add")) {
if (!strcmp(argv[4], "default")) {
if (ifc_add_route(argv[3], argv[5], prefix_length, argv[7])) {
cli->sendMsg(ResponseCode::OperationFailed,
"Failed to add route to default table", true);
} else {
cli->sendMsg(ResponseCode::CommandOkay,
"Route added to default table", false);
}
} else if (!strcmp(argv[4], "secondary")) {
return sSecondaryTableCtrl->addRoute(cli, argv[3], argv[5],
prefix_length, argv[7]);
} else {
cli->sendMsg(ResponseCode::CommandParameterError,
"Invalid route type, expecting 'default' or 'secondary'", false);
return 0;
}
} else if (!strcmp(argv[2], "remove")) {
if (!strcmp(argv[4], "default")) {
if (ifc_remove_route(argv[3], argv[5], prefix_length, argv[7])) {
cli->sendMsg(ResponseCode::OperationFailed,
"Failed to remove route from default table", true);
} else {
cli->sendMsg(ResponseCode::CommandOkay,
"Route removed from default table", false);
}
} else if (!strcmp(argv[4], "secondary")) {
return sSecondaryTableCtrl->removeRoute(cli, argv[3], argv[5],
prefix_length, argv[7]);
} else {
cli->sendMsg(ResponseCode::CommandParameterError,
"Invalid route type, expecting 'default' or 'secondary'", false);
return 0;
}
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
}
return 0;
}
if (!strcmp(argv[1], "getcfg")) {
struct in_addr addr;
int prefixLength;
unsigned char hwaddr[6];
unsigned flags = 0;
ifc_init();
memset(hwaddr, 0, sizeof(hwaddr));
if (ifc_get_info(argv[2], &addr.s_addr, &prefixLength, &flags)) {
cli->sendMsg(ResponseCode::OperationFailed, "Interface not found", true);
ifc_close();
return 0;
}
if (ifc_get_hwaddr(argv[2], (void *) hwaddr)) {
ALOGW("Failed to retrieve HW addr for %s (%s)", argv[2], strerror(errno));
}
char *addr_s = strdup(inet_ntoa(addr));
const char *updown, *brdcst, *loopbk, *ppp, *running, *multi;
updown = (flags & IFF_UP) ? "up" : "down";
brdcst = (flags & IFF_BROADCAST) ? " broadcast" : "";
loopbk = (flags & IFF_LOOPBACK) ? " loopback" : "";
ppp = (flags & IFF_POINTOPOINT) ? " point-to-point" : "";
running = (flags & IFF_RUNNING) ? " running" : "";
multi = (flags & IFF_MULTICAST) ? " multicast" : "";
char *flag_s;
asprintf(&flag_s, "%s%s%s%s%s%s", updown, brdcst, loopbk, ppp, running, multi);
char *msg = NULL;
asprintf(&msg, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x %s %d %s",
hwaddr[0], hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5],
addr_s, prefixLength, flag_s);
cli->sendMsg(ResponseCode::InterfaceGetCfgResult, msg, false);
free(addr_s);
free(flag_s);
free(msg);
ifc_close();
return 0;
} else if (!strcmp(argv[1], "setcfg")) {
// arglist: iface [addr prefixLength] flags
if (argc < 4) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
return 0;
}
ALOGD("Setting iface cfg");
struct in_addr addr;
unsigned flags = 0;
int index = 5;
ifc_init();
if (!inet_aton(argv[3], &addr)) {
// Handle flags only case
index = 3;
} else {
if (ifc_set_addr(argv[2], addr.s_addr)) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set address", true);
ifc_close();
return 0;
}
// Set prefix length on a non zero address
if (addr.s_addr != 0 && ifc_set_prefixLength(argv[2], atoi(argv[4]))) {
cli->sendMsg(ResponseCode::OperationFailed, "Failed to set prefixLength", true);
ifc_close();
return 0;
}
}
/* Process flags */
for (int i = index; i < argc; i++) {
char *flag = argv[i];
if (!strcmp(flag, "up")) {
ALOGD("Trying to bring up %s", argv[2]);
if (ifc_up(argv[2])) {
ALOGE("Error upping interface");
cli->sendMsg(ResponseCode::OperationFailed, "Failed to up interface", true);
ifc_close();
return 0;
}
} else if (!strcmp(flag, "down")) {
ALOGD("Trying to bring down %s", argv[2]);
if (ifc_down(argv[2])) {
ALOGE("Error downing interface");
cli->sendMsg(ResponseCode::OperationFailed, "Failed to down interface", true);
ifc_close();
return 0;
}
} else if (!strcmp(flag, "broadcast")) {
// currently ignored
} else if (!strcmp(flag, "multicast")) {
// currently ignored
} else if (!strcmp(flag, "running")) {
// currently ignored
} else if (!strcmp(flag, "loopback")) {
// currently ignored
} else if (!strcmp(flag, "point-to-point")) {
// currently ignored
} else {
cli->sendMsg(ResponseCode::CommandParameterError, "Flag unsupported", false);
ifc_close();
return 0;
}
}
cli->sendMsg(ResponseCode::CommandOkay, "Interface configuration set", false);
ifc_close();
return 0;
} else if (!strcmp(argv[1], "clearaddrs")) {
// arglist: iface
ALOGD("Clearing all IP addresses on %s", argv[2]);
ifc_clear_addresses(argv[2]);
cli->sendMsg(ResponseCode::CommandOkay, "Interface IP addresses cleared", false);
return 0;
} else if (!strcmp(argv[1], "ipv6privacyextensions")) {
if (argc != 4) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface ipv6privacyextensions <interface> <enable|disable>",
false);
return 0;
}
char *tmp;
asprintf(&tmp, "/proc/sys/net/ipv6/conf/%s/use_tempaddr", argv[2]);
if (writeFile(tmp, !strncmp(argv[3], "enable", 7) ? "2" : "0", 1) < 0) {
free(tmp);
cli->sendMsg(ResponseCode::OperationFailed,
"Failed to set ipv6 privacy extensions", true);
return 0;
}
free(tmp);
cli->sendMsg(ResponseCode::CommandOkay, "IPv6 privacy extensions changed", false);
return 0;
} else if (!strcmp(argv[1], "ipv6")) {
if (argc != 4) {
cli->sendMsg(ResponseCode::CommandSyntaxError,
"Usage: interface ipv6 <interface> <enable|disable>",
false);
return 0;
}
char *tmp;
asprintf(&tmp, "/proc/sys/net/ipv6/conf/%s/disable_ipv6", argv[2]);
if (writeFile(tmp, !strncmp(argv[3], "enable", 7) ? "0" : "1", 1) < 0) {
free(tmp);
cli->sendMsg(ResponseCode::OperationFailed,
"Failed to change IPv6 state", true);
return 0;
}
free(tmp);
cli->sendMsg(ResponseCode::CommandOkay, "IPv6 state changed", false);
return 0;
} else {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
return 0;
}
}
return 0;
}
struct ifaddrs *get_interface(const char *name, sa_family_t family)
{
unsigned addr, flags;
int masklen;
struct ifaddrs *ifa;
struct sockaddr_in *saddr = NULL;
struct sockaddr_in *smask = NULL;
struct sockaddr_ll *hwaddr = NULL;
unsigned char hwbuf[ETH_ALEN];
if (ifc_get_info(name, &addr, &masklen, &flags))
return NULL;
if ((family == AF_INET) && (addr == 0))
return NULL;
ifa = malloc(sizeof(struct ifaddrs));
if (!ifa)
return NULL;
memset(ifa, 0, sizeof(struct ifaddrs));
ifa->ifa_name = malloc(strlen(name)+1);
if (!ifa->ifa_name) {
free(ifa);
return NULL;
}
strcpy(ifa->ifa_name, name);
ifa->ifa_flags = flags;
if (family == AF_INET) {
saddr = malloc(sizeof(struct sockaddr_in));
if (saddr) {
saddr->sin_addr.s_addr = addr;
saddr->sin_family = family;
}
ifa->ifa_addr = (struct sockaddr *)saddr;
if (masklen != 0) {
smask = malloc(sizeof(struct sockaddr_in));
if (smask) {
smask->sin_addr.s_addr = prefixLengthToIpv4Netmask(masklen);
smask->sin_family = family;
}
}
ifa->ifa_netmask = (struct sockaddr *)smask;
} else if (family == AF_PACKET) {
if (!ifc_get_hwaddr(name, hwbuf)) {
hwaddr = malloc(sizeof(struct sockaddr_ll));
if (hwaddr) {
memset(hwaddr, 0, sizeof(struct sockaddr_ll));
hwaddr->sll_family = family;
/* hwaddr->sll_protocol = ETHERTYPE_IP; */
hwaddr->sll_hatype = ARPHRD_ETHER;
hwaddr->sll_halen = ETH_ALEN;
memcpy(hwaddr->sll_addr, hwbuf, ETH_ALEN);
}
}
ifa->ifa_addr = (struct sockaddr *)hwaddr;
ifa->ifa_netmask = (struct sockaddr *)smask;
}
return ifa;
}
