| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| |
| #define LOG_TAG "WifiNetwork" |
| #include <cutils/log.h> |
| |
| #include "NetworkManager.h" |
| #include "WifiNetwork.h" |
| #include "Supplicant.h" |
| #include "WifiController.h" |
| #include "InterfaceConfig.h" |
| |
| const char *WifiNetwork::PropertyNames[] = { "ssid", "bssid", "psk", "wepkey.1", |
| "wepkey.2", "wepkey.3", "wepkey.4", |
| "defkeyidx", "pri", "hiddenssid", |
| "AllowedKeyManagement", |
| "AllowedProtocols", |
| "AllowedAuthAlgorithms", |
| "AllowedPairwiseCiphers", |
| "AllowedGroupCiphers", |
| "enabled", '\0' }; |
| WifiNetwork::WifiNetwork() { |
| // This is private to restrict copy constructors |
| } |
| |
| WifiNetwork::WifiNetwork(WifiController *c, Supplicant *suppl, const char *data) { |
| mController = c; |
| mSuppl = suppl; |
| |
| char *tmp = strdup(data); |
| char *next = tmp; |
| char *id; |
| char *ssid; |
| char *bssid; |
| char *flags; |
| |
| if (!(id = strsep(&next, "\t"))) |
| LOGE("Failed to extract network id"); |
| if (!(ssid = strsep(&next, "\t"))) |
| LOGE("Failed to extract ssid"); |
| if (!(bssid = strsep(&next, "\t"))) |
| LOGE("Failed to extract bssid"); |
| if (!(flags = strsep(&next, "\t"))) |
| LOGE("Failed to extract flags"); |
| |
| // LOGD("id '%s', ssid '%s', bssid '%s', flags '%s'", id, ssid, bssid, |
| // flags ? flags :"null"); |
| |
| if (id) |
| mNetid = atoi(id); |
| if (ssid) |
| mSsid = strdup(ssid); |
| if (bssid) |
| mBssid = strdup(bssid); |
| |
| mPsk = NULL; |
| memset(mWepKeys, 0, sizeof(mWepKeys)); |
| mDefaultKeyIndex = -1; |
| mPriority = -1; |
| mHiddenSsid = NULL; |
| mAllowedKeyManagement = KeyManagementMask::UNKNOWN; |
| mAllowedProtocols = 0; |
| mAllowedAuthAlgorithms = 0; |
| mAllowedPairwiseCiphers = 0; |
| mAllowedGroupCiphers = 0; |
| mEnabled = true; |
| |
| if (flags && flags[0] != '\0') { |
| if (!strcmp(flags, "[DISABLED]")) |
| mEnabled = false; |
| else |
| LOGW("Unsupported flags '%s'", flags); |
| } |
| |
| char *tmp2; |
| asprintf(&tmp2, "wifi.net.%d", mNetid); |
| mIfaceCfg = new InterfaceConfig(tmp2); |
| free(tmp2); |
| free(tmp); |
| } |
| |
| WifiNetwork::WifiNetwork(WifiController *c, Supplicant *suppl, int networkId) { |
| mController = c; |
| mSuppl = suppl; |
| mNetid = networkId; |
| mSsid = NULL; |
| mBssid = NULL; |
| mPsk = NULL; |
| memset(mWepKeys, 0, sizeof(mWepKeys)); |
| mDefaultKeyIndex = -1; |
| mPriority = -1; |
| mHiddenSsid = NULL; |
| mAllowedKeyManagement = 0; |
| mAllowedProtocols = 0; |
| mAllowedAuthAlgorithms = 0; |
| mAllowedPairwiseCiphers = 0; |
| mAllowedGroupCiphers = 0; |
| mEnabled = false; |
| |
| char *tmp2; |
| asprintf(&tmp2, "wifi.net.%d", mNetid); |
| mIfaceCfg = new InterfaceConfig(tmp2); |
| free(tmp2); |
| } |
| |
| WifiNetwork *WifiNetwork::clone() { |
| WifiNetwork *r = new WifiNetwork(); |
| |
| r->mSuppl = mSuppl; |
| r->mNetid = mNetid; |
| |
| if (mSsid) |
| r->mSsid = strdup(mSsid); |
| if (mBssid) |
| r->mBssid = strdup(mBssid); |
| if (mPsk) |
| r->mPsk = strdup(mPsk); |
| |
| r->mController = mController; |
| memcpy(r->mWepKeys, mWepKeys, sizeof(mWepKeys)); |
| r->mDefaultKeyIndex = mDefaultKeyIndex; |
| r->mPriority = mPriority; |
| if (mHiddenSsid) |
| r->mHiddenSsid = strdup(mHiddenSsid); |
| r->mAllowedKeyManagement = mAllowedKeyManagement; |
| r->mAllowedProtocols = mAllowedProtocols; |
| r->mAllowedAuthAlgorithms = mAllowedAuthAlgorithms; |
| r->mAllowedPairwiseCiphers = mAllowedPairwiseCiphers; |
| r->mAllowedGroupCiphers = mAllowedGroupCiphers; |
| return r; |
| } |
| |
| WifiNetwork::~WifiNetwork() { |
| if (mSsid) |
| free(mSsid); |
| if (mBssid) |
| free(mBssid); |
| if (mPsk) |
| free(mPsk); |
| for (int i = 0; i < 4; i++) { |
| if (mWepKeys[i]) |
| free(mWepKeys[i]); |
| } |
| |
| if (mHiddenSsid) |
| free(mHiddenSsid); |
| if (mIfaceCfg) |
| delete(mIfaceCfg); |
| } |
| |
| int WifiNetwork::refresh() { |
| char buffer[255]; |
| size_t len; |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "psk", buffer, len)) |
| mPsk = strdup(buffer); |
| |
| for (int i = 0; i < 4; i++) { |
| char *name; |
| |
| asprintf(&name, "wep_key%d", i); |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, name, buffer, len)) |
| mWepKeys[i] = strdup(buffer); |
| free(name); |
| } |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "wep_tx_keyidx", buffer, len)) |
| mDefaultKeyIndex = atoi(buffer); |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "priority", buffer, len)) |
| mPriority = atoi(buffer); |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "scan_ssid", buffer, len)) |
| mHiddenSsid = strdup(buffer); |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "key_mgmt", buffer, len)) { |
| if (!strcmp(buffer, "NONE")) |
| setAllowedKeyManagement(KeyManagementMask::NONE); |
| else if (index(buffer, ' ')) { |
| char *next = buffer; |
| char *token; |
| uint32_t mask = 0; |
| |
| while((token = strsep(&next, " "))) { |
| if (!strcmp(token, "WPA-PSK")) |
| mask |= KeyManagementMask::WPA_PSK; |
| else if (!strcmp(token, "WPA-EAP")) |
| mask |= KeyManagementMask::WPA_EAP; |
| else if (!strcmp(token, "IEE8021X")) |
| mask |= KeyManagementMask::IEEE8021X; |
| else |
| LOGW("Unsupported key management scheme '%s'" , token); |
| } |
| setAllowedKeyManagement(mask); |
| } else |
| LOGE("Unsupported key management '%s'", buffer); |
| } |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "proto", buffer, len)) { |
| // TODO |
| } |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "auth_alg", buffer, len)) { |
| // TODO |
| } |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "pairwise", buffer, len)) { |
| // TODO |
| } |
| |
| len = sizeof(buffer); |
| if (mSuppl->getNetworkVar(mNetid, "group", buffer, len)) { |
| // TODO |
| } |
| |
| return 0; |
| out_err: |
| LOGE("Refresh failed (%s)",strerror(errno)); |
| return -1; |
| } |
| |
| int WifiNetwork::set(const char *name, const char *value) { |
| char *n_tmp = strdup(name + strlen("wifi.net.")); |
| char *n_next = n_tmp; |
| char *n_local; |
| char *n_rest; |
| int rc = 0; |
| |
| if (!strsep(&n_next, ".")) // skip net id |
| goto out_inval; |
| |
| if (!(n_local = strsep(&n_next, "."))) |
| goto out_inval; |
| |
| n_rest = n_next; |
| |
| // LOGD("set(): var '%s'(%s / %s) = %s", name, n_local, n_rest, value); |
| if (!strcasecmp(n_local, "enabled")) |
| rc = setEnabled(atoi(value)); |
| else if (!strcmp(n_local, "ssid")) |
| rc = setSsid(value); |
| else if (!strcasecmp(n_local, "bssid")) |
| rc = setBssid(value); |
| else if (!strcasecmp(n_local, "psk")) |
| rc = setPsk(value); |
| else if (!strcasecmp(n_local, "wepkey")) |
| rc = setWepKey(atoi(n_rest) -1, value); |
| else if (!strcasecmp(n_local, "defkeyidx")) |
| rc = setDefaultKeyIndex(atoi(value)); |
| else if (!strcasecmp(n_local, "pri")) |
| rc = setPriority(atoi(value)); |
| else if (!strcasecmp(n_local, "hiddenssid")) |
| rc = setHiddenSsid(value); |
| else if (!strcasecmp(n_local, "AllowedKeyManagement")) { |
| uint32_t mask = 0; |
| bool none = false; |
| char *v_tmp = strdup(value); |
| char *v_next = v_tmp; |
| char *v_token; |
| |
| while((v_token = strsep(&v_next, " "))) { |
| if (!strcasecmp(v_token, "NONE")) { |
| mask = KeyManagementMask::NONE; |
| none = true; |
| } else if (!none) { |
| if (!strcasecmp(v_token, "WPA_PSK")) |
| mask |= KeyManagementMask::WPA_PSK; |
| else if (!strcasecmp(v_token, "WPA_EAP")) |
| mask |= KeyManagementMask::WPA_EAP; |
| else if (!strcasecmp(v_token, "IEEE8021X")) |
| mask |= KeyManagementMask::IEEE8021X; |
| else { |
| errno = EINVAL; |
| rc = -1; |
| free(v_tmp); |
| goto out; |
| } |
| } else { |
| errno = EINVAL; |
| rc = -1; |
| free(v_tmp); |
| goto out; |
| } |
| } |
| free(v_tmp); |
| } else if (!strcasecmp(n_local, "AllowedProtocols")) { |
| // TODO |
| } else if (!strcasecmp(n_local, "AllowedPairwiseCiphers")) { |
| // TODO |
| } else if (!strcasecmp(n_local, "AllowedAuthAlgorithms")) { |
| // TODO |
| } else if (!strcasecmp(n_local, "AllowedGroupCiphers")) { |
| // TODO |
| } else { |
| errno = ENOENT; |
| free(n_tmp); |
| return -1; |
| } |
| |
| out: |
| free(n_tmp); |
| return rc; |
| |
| out_inval: |
| errno = EINVAL; |
| free(n_tmp); |
| return -1; |
| } |
| |
| const char *WifiNetwork::get(const char *name, char *buffer, size_t maxsize) { |
| char *n_tmp = strdup(name + strlen("wifi.net.")); |
| char *n_next = n_tmp; |
| char *n_local; |
| char fc[64]; |
| char rc[128]; |
| |
| if (!strsep(&n_next, ".")) // skip net id |
| goto out_inval; |
| |
| if (!(n_local = strsep(&n_next, "."))) |
| goto out_inval; |
| |
| |
| strncpy(fc, n_local, sizeof(fc)); |
| rc[0] = '\0'; |
| if (n_next) |
| strncpy(rc, n_next, sizeof(rc)); |
| |
| free(n_tmp); |
| |
| if (!strcasecmp(fc, "enabled")) |
| snprintf(buffer, maxsize, "%d", getEnabled()); |
| else if (!strcasecmp(fc, "ssid")) { |
| strncpy(buffer, |
| getSsid() ? getSsid() : "none", |
| maxsize); |
| } else if (!strcasecmp(fc, "bssid")) { |
| strncpy(buffer, |
| getBssid() ? getBssid() : "none", |
| maxsize); |
| } else if (!strcasecmp(fc, "psk")) { |
| strncpy(buffer, |
| getPsk() ? getPsk() : "none", |
| maxsize); |
| } else if (!strcasecmp(fc, "wepkey")) { |
| strncpy(buffer, |
| getWepKey(atoi(rc)-1) ? getWepKey(atoi(rc)-1) : "none", |
| maxsize); |
| } else if (!strcasecmp(fc, "defkeyidx")) |
| snprintf(buffer, maxsize, "%d", getDefaultKeyIndex()); |
| else if (!strcasecmp(fc, "pri")) |
| snprintf(buffer, maxsize, "%d", getPriority()); |
| else if (!strcasecmp(fc, "AllowedKeyManagement")) { |
| if (getAllowedKeyManagement() == KeyManagementMask::NONE) |
| strncpy(buffer, "NONE", maxsize); |
| else { |
| char tmp[80] = { '\0' }; |
| |
| if (getAllowedKeyManagement() & KeyManagementMask::WPA_PSK) |
| strcat(tmp, "WPA_PSK "); |
| if (getAllowedKeyManagement() & KeyManagementMask::WPA_EAP) |
| strcat(tmp, "WPA_EAP "); |
| if (getAllowedKeyManagement() & KeyManagementMask::IEEE8021X) |
| strcat(tmp, "IEEE8021X"); |
| if (tmp[0] == '\0') { |
| strncpy(buffer, "(internal error)", maxsize); |
| errno = ENOENT; |
| return NULL; |
| } |
| if (tmp[strlen(tmp)] == ' ') |
| tmp[strlen(tmp)] = '\0'; |
| |
| strncpy(buffer, tmp, maxsize); |
| } |
| } else if (!strcasecmp(fc, "hiddenssid")) { |
| strncpy(buffer, |
| getHiddenSsid() ? getHiddenSsid() : "none", |
| maxsize); |
| } else { |
| strncpy(buffer, "(internal error)", maxsize); |
| errno = ENOENT; |
| return NULL; |
| } |
| |
| return buffer; |
| |
| out_inval: |
| errno = EINVAL; |
| free(n_tmp); |
| return NULL; |
| } |
| |
| int WifiNetwork::setSsid(const char *ssid) { |
| if (mSuppl->setNetworkVar(mNetid, "ssid", ssid)) |
| return -1; |
| if (mSsid) |
| free(mSsid); |
| mSsid = strdup(ssid); |
| return 0; |
| } |
| |
| int WifiNetwork::setBssid(const char *bssid) { |
| if (mSuppl->setNetworkVar(mNetid, "bssid", bssid)) |
| return -1; |
| if (mBssid) |
| free(mBssid); |
| mBssid = strdup(bssid); |
| return 0; |
| } |
| |
| int WifiNetwork::setPsk(const char *psk) { |
| if (mSuppl->setNetworkVar(mNetid, "psk", psk)) |
| return -1; |
| |
| if (mPsk) |
| free(mPsk); |
| mPsk = strdup(psk); |
| return 0; |
| } |
| |
| int WifiNetwork::setWepKey(int idx, const char *key) { |
| char *name; |
| |
| asprintf(&name, "wep_key%d", idx); |
| int rc = mSuppl->setNetworkVar(mNetid, name, key); |
| free(name); |
| |
| if (rc) |
| return -1; |
| |
| if (mWepKeys[idx]) |
| free(mWepKeys[idx]); |
| mWepKeys[idx] = strdup(key); |
| return 0; |
| } |
| |
| int WifiNetwork::setDefaultKeyIndex(int idx) { |
| char val[16]; |
| sprintf(val, "%d", idx); |
| if (mSuppl->setNetworkVar(mNetid, "wep_tx_keyidx", val)) |
| return -1; |
| |
| mDefaultKeyIndex = idx; |
| return 0; |
| } |
| |
| int WifiNetwork::setPriority(int priority) { |
| char val[16]; |
| sprintf(val, "%d", priority); |
| if (mSuppl->setNetworkVar(mNetid, "priority", val)) |
| return -1; |
| |
| mPriority = priority; |
| return 0; |
| } |
| |
| int WifiNetwork::setHiddenSsid(const char *ssid) { |
| if (mSuppl->setNetworkVar(mNetid, "scan_ssid", ssid)) |
| return -1; |
| |
| if (mHiddenSsid) |
| free(mHiddenSsid); |
| mHiddenSsid = strdup(ssid); |
| return 0; |
| } |
| |
| int WifiNetwork::setAllowedKeyManagement(uint32_t mask) { |
| char accum[255]; |
| |
| if (mask == KeyManagementMask::NONE) |
| strcpy(accum, "NONE"); |
| else { |
| if (mask & KeyManagementMask::WPA_PSK) |
| strcat(accum, "WPA_PSK "); |
| if (mask & KeyManagementMask::WPA_EAP) |
| strcat(accum, "WPA_EAP "); |
| if (mask & KeyManagementMask::IEEE8021X) |
| strcat(accum, "IEEE8021X "); |
| } |
| |
| if (mSuppl->setNetworkVar(mNetid, "key_mgmt", accum)) |
| return -1; |
| mAllowedKeyManagement = mask; |
| return 0; |
| } |
| |
| int WifiNetwork::setAllowedProtocols(uint32_t mask) { |
| char accum[255]; |
| |
| accum[0] = '\0'; |
| |
| if (mask & SecurityProtocolMask::WPA) |
| strcpy(accum, "WPA "); |
| |
| if (mask & SecurityProtocolMask::RSN) |
| strcat(accum, "RSN"); |
| |
| if (mSuppl->setNetworkVar(mNetid, "proto", accum)) |
| return -1; |
| mAllowedProtocols = mask; |
| return 0; |
| } |
| |
| int WifiNetwork::setAllowedAuthAlgorithms(uint32_t mask) { |
| char accum[255]; |
| |
| accum[0] = '\0'; |
| |
| if (mask & AuthenticationAlgorithmMask::OPEN) |
| strcpy(accum, "OPEN "); |
| |
| if (mask & AuthenticationAlgorithmMask::SHARED) |
| strcat(accum, "SHARED "); |
| |
| if (mask & AuthenticationAlgorithmMask::LEAP) |
| strcat(accum, "LEAP "); |
| |
| if (mSuppl->setNetworkVar(mNetid, "auth_alg", accum)) |
| return -1; |
| |
| mAllowedAuthAlgorithms = mask; |
| return 0; |
| } |
| |
| int WifiNetwork::setAllowedPairwiseCiphers(uint32_t mask) { |
| char accum[255]; |
| |
| if (mask == PairwiseCiphersMask::NONE) |
| strcpy(accum, "NONE"); |
| else { |
| if (mask & PairwiseCiphersMask::TKIP) |
| strcat(accum, "TKIP "); |
| if (mask & PairwiseCiphersMask::CCMP) |
| strcat(accum, "CCMP "); |
| } |
| |
| if (mSuppl->setNetworkVar(mNetid, "pairwise", accum)) |
| return -1; |
| |
| mAllowedPairwiseCiphers = mask; |
| return 0; |
| } |
| |
| int WifiNetwork::setAllowedGroupCiphers(uint32_t mask) { |
| char accum[255]; |
| |
| if (mask & GroupCiphersMask::WEP40) |
| strcat(accum, "WEP40 "); |
| if (mask & GroupCiphersMask::WEP104) |
| strcat(accum, "WEP104 "); |
| if (mask & GroupCiphersMask::TKIP) |
| strcat(accum, "TKIP "); |
| if (mask & GroupCiphersMask::CCMP) |
| strcat(accum, "CCMP "); |
| |
| if (mSuppl->setNetworkVar(mNetid, "group", accum)) |
| return -1; |
| mAllowedGroupCiphers = mask; |
| return 0; |
| } |
| |
| int WifiNetwork::setEnabled(bool enabled) { |
| |
| if (enabled) { |
| if (getPriority() == -1) { |
| LOGE("Cannot enable network when priority is not set"); |
| errno = EAGAIN; |
| return -1; |
| } |
| if (getAllowedKeyManagement() == KeyManagementMask::UNKNOWN) { |
| LOGE("Cannot enable network when KeyManagement is not set"); |
| errno = EAGAIN; |
| return -1; |
| } |
| } |
| |
| if (mSuppl->enableNetwork(mNetid, enabled)) |
| return -1; |
| |
| mEnabled = enabled; |
| return 0; |
| } |
| |
| int WifiNetwork::registerProperties() { |
| for (const char **p = WifiNetwork::PropertyNames; *p != '\0'; p++) { |
| char *tmp; |
| asprintf(&tmp, "wifi.net.%d.%s", mNetid, *p); |
| |
| if (NetworkManager::Instance()->getPropMngr()->registerProperty(tmp, |
| this)) { |
| free(tmp); |
| return -1; |
| } |
| free(tmp); |
| } |
| return 0; |
| } |
| |
| int WifiNetwork::unregisterProperties() { |
| for (const char **p = WifiNetwork::PropertyNames; *p != '\0'; p++) { |
| char *tmp; |
| asprintf(&tmp, "wifi.net.%d.%s", mNetid, *p); |
| |
| if (NetworkManager::Instance()->getPropMngr()->unregisterProperty(tmp)) |
| LOGW("Unable to remove property '%s' (%s)", tmp, strerror(errno)); |
| free(tmp); |
| } |
| return 0; |
| } |
