int
ifc_configure(const char *ifname,
in_addr_t address,
uint32_t prefixLength,
in_addr_t gateway,
in_addr_t dns1,
in_addr_t dns2) {
char dns_prop_name[PROPERTY_KEY_MAX];
ifc_init();
if (ifc_up(ifname)) {
printerr("failed to turn on interface %s: %s\n", ifname, strerror(errno));
ifc_close();
return -1;
}
if (ifc_set_addr(ifname, address)) {
printerr("failed to set ipaddr %s: %s\n", ipaddr_to_string(address), strerror(errno));
ifc_close();
return -1;
}
if (ifc_set_prefixLength(ifname, prefixLength)) {
printerr("failed to set prefixLength %d: %s\n", prefixLength, strerror(errno));
ifc_close();
return -1;
}
if (ifc_create_default_route(ifname, gateway)) {
printerr("failed to set default route %s: %s\n", ipaddr_to_string(gateway), strerror(errno));
ifc_close();
return -1;
}
ifc_close();
snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns1", ifname);
property_set(dns_prop_name, dns1 ? ipaddr_to_string(dns1) : "");
snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns2", ifname);
property_set(dns_prop_name, dns2 ? ipaddr_to_string(dns2) : "");
snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.gw", ifname);
property_set(dns_prop_name, gateway ? ipaddr_to_string(gateway) : "");
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;
}
