mirror of
https://github.com/team-infusion-developers/android_hardware_samsung.git
synced 2024-11-06 21:55:41 +00:00
macloader: Rework mac address half classification
* Don't return in the middle of a function, set the return code and jump to the exit point instead. * Close file pointers properly. * Unify error code returns (macloader will always exit with -1 on error now). Change-Id: I32ac8ea85fcbabed45550a4d176ac999eff9f9e9
This commit is contained in:
Christopher N. Hesse
parent
759368fbc0
commit
afec0fd5ca
2 changed files with 295 additions and 189 deletions
146
macloader/macaddr_mappings.h
Normal file
146
macloader/macaddr_mappings.h
Normal file
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@ -0,0 +1,146 @@
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/*
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* Copyright (C) 2017, The LineageOS Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MACADDR_MAPPINGS_H
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#define MACADDR_MAPPINGS_H
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#define MAX_RANGE_ENTRIES 100
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#define RANGE_ENTRY_LEN 9
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enum Type {
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NONE,
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MURATA,
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SEMCOSH,
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SEMCOVE,
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SEMCO3RD,
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SEMCO,
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WISOL,
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TYPE_MAX = WISOL
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};
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struct company_range {
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int type;
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char macaddrs[MAX_RANGE_ENTRIES][RANGE_ENTRY_LEN];
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};
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/*
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* address mappings from http://hwaddress.com
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*/
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static const struct company_range murata_ranges = {
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.type = MURATA,
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.macaddrs = {
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"00:0e:6d",
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"00:13:e0",
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"00:21:e8",
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"00:26:e8",
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"00:37:6d",
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"00:60:57",
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"00:ae:fa",
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"04:46:65",
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"10:5f:06",
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"10:a5:d0",
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"10:d5:42",
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"14:7d:c5",
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"1c:99:4c",
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"20:02:af",
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"40:f3:08",
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"44:a7:cf",
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"5c:da:d4",
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"5c:f8:a1",
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"60:21:c0",
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"60:f1:89",
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"78:4b:87",
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"78:52:1a",
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"88:30:8a",
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"90:b6:86",
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"98:f1:70",
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"a0:cc:2b",
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"a4:08:ea",
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"b0:72:bf",
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"b8:d7:af",
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"c8:14:79",
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"d0:e4:4a",
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"d8:c4:6a",
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"dc:ef:ca",
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"f0:27:65",
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"fc:c2:de",
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"fc:db:b3"
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}
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};
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static const struct company_range semcosh_ranges = {
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.type = SEMCOSH,
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.macaddrs = {
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"34:23:ba",
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"38:aa:3c",
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"5c:0a:5b",
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"88:32:9b",
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"90:18:7c",
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"cc:3a:61"
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}
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};
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static const struct company_range semco3rd_ranges = {
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.type = SEMCO3RD,
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.macaddrs = {
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"2c:0e:3d",
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"54:88:0e",
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"84:38:38",
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"8c:f5:a3",
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"ac:36:13",
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"ac:5f:3e",
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"b4:79:a7",
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"c0:97:27",
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"c0:bd:d1",
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"c8:ba:94",
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"d0:25:44",
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"e8:50:8b",
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"ec:1f:72",
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"ec:9b:f3",
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"f0:25:b7",
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"f4:09:d8",
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"f8:04:2e"
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}
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};
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static const struct company_range semco_ranges = {
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.type = SEMCO,
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.macaddrs = {
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"4c:66:41",
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"51:f6:6b",
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"d8:c4:e9",
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"ec:9b:f3"
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}
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};
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static const struct company_range wisol_ranges = {
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.type = WISOL,
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.macaddrs = {
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"48:5a:3f",
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"70:2c:1f"
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}
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};
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static const struct company_range *all_ranges[TYPE_MAX] = {
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&murata_ranges,
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&semcosh_ranges,
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&semco3rd_ranges,
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&semco_ranges,
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&wisol_ranges
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};
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#endif // MACADDR_MAPPINGS_H
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@ -34,15 +34,7 @@
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#include <samsung_macloader.h>
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enum Type {
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NONE,
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MURATA,
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SEMCOSH,
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SEMCOVE,
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SEMCO3RD,
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SEMCO,
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WISOL
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};
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#include "macaddr_mappings.h"
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static int wifi_change_nvram_calibration(const char *nvram_file,
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const char *type)
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@ -54,7 +46,8 @@ static int wifi_change_nvram_calibration(const char *nvram_file,
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char nvram_str[1024] = { 0 };
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if (nvram_file == NULL || type == NULL) {
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return -1;
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ret = -1;
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goto out;
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}
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ret = stat(nvram_file, &sb);
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@ -62,7 +55,8 @@ static int wifi_change_nvram_calibration(const char *nvram_file,
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ALOGE("Failed to check for NVRAM calibration file '%s' - error: %s",
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nvram_file,
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strerror(errno));
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return -1;
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ret = -1;
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goto out;
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}
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ALOGD("Using NVRAM calibration file: %s\n", nvram_file);
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@ -71,7 +65,8 @@ static int wifi_change_nvram_calibration(const char *nvram_file,
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if (fd < 0) {
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ALOGE("Failed to open wifi nvram config path %s - error: %s",
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WIFI_DRIVER_NVRAM_PATH_PARAM, strerror(errno));
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return -1;
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ret = -1;
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goto out;
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}
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len = strlen(nvram_file) + 1;
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@ -112,7 +107,6 @@ static int wifi_change_nvram_calibration(const char *nvram_file,
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ALOGD("NVRAM calibration file set to '%s'\n", nvram_str);
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ret = 0;
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out:
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if (fd != -1) {
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close(fd);
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@ -120,12 +114,39 @@ out:
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return ret;
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}
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static int classify_macaddr_half(char const *macaddr_half)
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{
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int type = NONE;
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unsigned int i, j;
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char const *macaddr;
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for (i = 0; i < TYPE_MAX; i++) {
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for (j = 0; j < MAX_RANGE_ENTRIES; j++) {
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macaddr = all_ranges[i]->macaddrs[j];
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if (macaddr[0] == '\0') {
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break;
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}
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// macaddr_half is guaranteed to be null terminated
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if (strcasecmp(macaddr_half, macaddr) == 0) {
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type = all_ranges[i]->type;
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goto exit;
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}
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}
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}
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exit:
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if (type != NONE) {
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ALOGV("Found CID type: %d", type);
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}
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return type;
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}
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int main() {
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FILE* file;
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FILE* cidfile;
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FILE* file = NULL;
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FILE* cidfile = NULL;
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char* str;
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char mac_addr_half[9];
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int ret = -1;
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char mac_addr_half[RANGE_ENTRY_LEN + 1] = {0};
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int ret = 0;
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int amode;
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enum Type type = NONE;
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@ -134,189 +155,128 @@ int main() {
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if (file == 0) {
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fprintf(stderr, "open(%s) failed\n", MACADDR_PATH);
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ALOGE("Can't open %s\n", MACADDR_PATH);
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return -1;
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ret = -1;
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goto out;
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}
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/* get and compare mac addr */
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str = fgets(mac_addr_half, 9, file);
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str = fgets(mac_addr_half, RANGE_ENTRY_LEN, file);
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fclose(file);
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if (str == 0) {
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fprintf(stderr, "fgets() from file %s failed\n", MACADDR_PATH);
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ALOGE("Can't read from %s\n", MACADDR_PATH);
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return -1;
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ret = -1;
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goto out;
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}
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/* murata
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ref: http://hwaddress.com/?q=ACT */
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if (strncasecmp(mac_addr_half, "00:0e:6d", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:13:e0", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:21:e8", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:26:e8", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:37:6d", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:60:57", 9) == 0 ||
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strncasecmp(mac_addr_half, "00:ae:fa", 9) == 0 ||
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strncasecmp(mac_addr_half, "04:46:65", 9) == 0 ||
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strncasecmp(mac_addr_half, "10:5f:06", 9) == 0 ||
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strncasecmp(mac_addr_half, "10:a5:d0", 9) == 0 ||
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strncasecmp(mac_addr_half, "10:d5:42", 9) == 0 ||
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strncasecmp(mac_addr_half, "14:7d:c5", 9) == 0 ||
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strncasecmp(mac_addr_half, "1c:99:4c", 9) == 0 ||
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strncasecmp(mac_addr_half, "20:02:af", 9) == 0 ||
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strncasecmp(mac_addr_half, "40:f3:08", 9) == 0 ||
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strncasecmp(mac_addr_half, "44:a7:cf", 9) == 0 ||
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strncasecmp(mac_addr_half, "5c:da:d4", 9) == 0 ||
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strncasecmp(mac_addr_half, "5c:f8:a1", 9) == 0 ||
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strncasecmp(mac_addr_half, "60:21:c0", 9) == 0 ||
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strncasecmp(mac_addr_half, "60:f1:89", 9) == 0 ||
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strncasecmp(mac_addr_half, "78:4b:87", 9) == 0 ||
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strncasecmp(mac_addr_half, "78:52:1a", 9) == 0 ||
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strncasecmp(mac_addr_half, "88:30:8a", 9) == 0 ||
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strncasecmp(mac_addr_half, "90:b6:86", 9) == 0 ||
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strncasecmp(mac_addr_half, "98:f1:70", 9) == 0 ||
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strncasecmp(mac_addr_half, "a0:cc:2b", 9) == 0 ||
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strncasecmp(mac_addr_half, "a4:08:ea", 9) == 0 ||
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strncasecmp(mac_addr_half, "b0:72:bf", 9) == 0 ||
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strncasecmp(mac_addr_half, "b8:d7:af", 9) == 0 ||
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strncasecmp(mac_addr_half, "c8:14:79", 9) == 0 ||
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strncasecmp(mac_addr_half, "d0:e4:4a", 9) == 0 ||
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strncasecmp(mac_addr_half, "d8:c4:6a", 9) == 0 ||
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strncasecmp(mac_addr_half, "dc:ef:ca", 9) == 0 ||
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strncasecmp(mac_addr_half, "f0:27:65", 9) == 0 ||
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strncasecmp(mac_addr_half, "fc:c2:de", 9) == 0 ||
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strncasecmp(mac_addr_half, "fc:db:b3", 9) == 0) {
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type = MURATA;
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}
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/* semcosh */
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if (strncasecmp(mac_addr_half, "34:23:ba", 9) == 0 ||
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strncasecmp(mac_addr_half, "38:aa:3c", 9) == 0 ||
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strncasecmp(mac_addr_half, "5c:0a:5b", 9) == 0 ||
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strncasecmp(mac_addr_half, "88:32:9b", 9) == 0 ||
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strncasecmp(mac_addr_half, "90:18:7c", 9) == 0 ||
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strncasecmp(mac_addr_half, "cc:3a:61", 9) == 0) {
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type = SEMCOSH;
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}
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/* semco3rd */
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if (strncasecmp(mac_addr_half, "2c:0e:3d", 9) == 0 ||
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strncasecmp(mac_addr_half, "54:88:0e", 9) == 0 ||
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strncasecmp(mac_addr_half, "84:38:38", 9) == 0 ||
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strncasecmp(mac_addr_half, "8c:f5:a3", 9) == 0 ||
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strncasecmp(mac_addr_half, "ac:36:13", 9) == 0 ||
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strncasecmp(mac_addr_half, "ac:5f:3e", 9) == 0 ||
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strncasecmp(mac_addr_half, "b4:79:a7", 9) == 0 ||
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strncasecmp(mac_addr_half, "c0:97:27", 9) == 0 ||
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strncasecmp(mac_addr_half, "c0:bd:d1", 9) == 0 ||
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strncasecmp(mac_addr_half, "c8:ba:94", 9) == 0 ||
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strncasecmp(mac_addr_half, "d0:25:44", 9) == 0 ||
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strncasecmp(mac_addr_half, "e8:50:8b", 9) == 0 ||
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strncasecmp(mac_addr_half, "ec:1f:72", 9) == 0 ||
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strncasecmp(mac_addr_half, "ec:9b:f3", 9) == 0 ||
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strncasecmp(mac_addr_half, "f0:25:b7", 9) == 0 ||
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strncasecmp(mac_addr_half, "f4:09:d8", 9) == 0 ||
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strncasecmp(mac_addr_half, "f8:04:2e", 9) == 0) {
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type = SEMCO3RD;
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}
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/* semco */
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if (strncasecmp(mac_addr_half, "4c:66:41", 9) == 0 ||
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strncasecmp(mac_addr_half, "51:f6:6b", 9) == 0 ||
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strncasecmp(mac_addr_half, "ec:9b:f3", 9) == 0 ||
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strncasecmp(mac_addr_half, "d8:c4:e9", 9) == 0) {
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type = SEMCO;
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}
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/* wisol */
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if (strncasecmp(mac_addr_half, "48:5a:3f", 9) == 0 ||
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strncasecmp(mac_addr_half, "70:2c:1f", 9) == 0) {
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type = WISOL;
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}
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if (type != NONE) {
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const char *nvram_file;
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const char *type_str;
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struct passwd *pwd;
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int fd;
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/* open cid file */
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cidfile = fopen(CID_PATH, "w");
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if(cidfile == 0) {
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fprintf(stderr, "open(%s) failed\n", CID_PATH);
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ALOGE("Can't open %s\n", CID_PATH);
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return -1;
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}
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switch(type) {
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case NONE:
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return -1;
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case MURATA:
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type_str = "murata";
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break;
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case SEMCOSH:
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type_str = "semcosh";
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break;
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case SEMCOVE:
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type_str = "semcove";
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break;
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case SEMCO3RD:
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type_str = "semco3rd";
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break;
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case SEMCO:
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type_str = "semco";
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break;
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case WISOL:
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type_str = "wisol";
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break;
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}
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ALOGI("Settting wifi type to %s in %s\n", type_str, CID_PATH);
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ret = fputs(type_str, cidfile);
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if (ret != 0) {
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ALOGE("Can't write to %s\n", CID_PATH);
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return 1;
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}
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/* Change permissions of cid file */
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ALOGD("Change permissions of %s\n", CID_PATH);
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fd = fileno(cidfile);
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amode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
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ret = fchmod(fd, amode);
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if (ret != 0) {
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fclose(cidfile);
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ALOGE("Can't set permissions on %s - %s\n",
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CID_PATH, strerror(errno));
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return 1;
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}
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pwd = getpwnam("system");
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if (pwd == NULL) {
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fclose(cidfile);
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ALOGE("Failed to find 'system' user - %s\n",
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strerror(errno));
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return 1;
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}
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ret = fchown(fd, pwd->pw_uid, pwd->pw_gid);
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fclose(cidfile);
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if (ret != 0) {
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ALOGE("Failed to change owner of %s - %s\n",
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CID_PATH, strerror(errno));
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return 1;
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}
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nvram_file = WIFI_DRIVER_NVRAM_PATH;
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if (nvram_file != NULL) {
|
||||
ret = wifi_change_nvram_calibration(nvram_file, type_str);
|
||||
if (ret != 0) {
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
type = classify_macaddr_half(mac_addr_half);
|
||||
if (type == NONE) {
|
||||
/* delete cid file if no specific type */
|
||||
ALOGD("Deleting file %s\n", CID_PATH);
|
||||
remove(CID_PATH);
|
||||
ret = 0;
|
||||
goto out;
|
||||
}
|
||||
return 0;
|
||||
|
||||
const char *nvram_file;
|
||||
const char *type_str;
|
||||
struct passwd *pwd;
|
||||
int fd;
|
||||
|
||||
switch(type) {
|
||||
case MURATA:
|
||||
type_str = "murata";
|
||||
break;
|
||||
case SEMCOSH:
|
||||
type_str = "semcosh";
|
||||
break;
|
||||
case SEMCOVE:
|
||||
type_str = "semcove";
|
||||
break;
|
||||
case SEMCO3RD:
|
||||
type_str = "semco3rd";
|
||||
break;
|
||||
case SEMCO:
|
||||
type_str = "semco";
|
||||
break;
|
||||
case WISOL:
|
||||
type_str = "wisol";
|
||||
break;
|
||||
default:
|
||||
ALOGE("Unknown CID type: %d", type);
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ALOGI("Settting wifi type to %s in %s\n", type_str, CID_PATH);
|
||||
|
||||
/* open cid file */
|
||||
cidfile = fopen(CID_PATH, "w");
|
||||
if (cidfile == NULL) {
|
||||
fprintf(stderr,
|
||||
"open(%s) failed: %s\n",
|
||||
CID_PATH,
|
||||
strerror(errno));
|
||||
ALOGE("Can't open %s: %s\n", CID_PATH, strerror(errno));
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = fputs(type_str, cidfile);
|
||||
if (ret != 0) {
|
||||
ALOGE("Can't write to %s\n", CID_PATH);
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Change permissions of cid file */
|
||||
ALOGD("Change permissions of %s\n", CID_PATH);
|
||||
|
||||
fd = fileno(cidfile);
|
||||
amode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
|
||||
ret = fchmod(fd, amode);
|
||||
if (ret != 0) {
|
||||
ALOGE("Can't set permissions on %s - %s\n",
|
||||
CID_PATH, strerror(errno));
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
pwd = getpwnam("system");
|
||||
if (pwd == NULL) {
|
||||
ALOGE("Failed to find 'system' user - %s\n",
|
||||
strerror(errno));
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = fchown(fd, pwd->pw_uid, pwd->pw_gid);
|
||||
if (ret != 0) {
|
||||
ALOGE("Failed to change owner of %s - %s\n",
|
||||
CID_PATH, strerror(errno));
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
nvram_file = WIFI_DRIVER_NVRAM_PATH;
|
||||
if (nvram_file != NULL) {
|
||||
ret = wifi_change_nvram_calibration(nvram_file, type_str);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
if (file) {
|
||||
fclose(file);
|
||||
}
|
||||
if (cidfile) {
|
||||
fclose(cidfile);
|
||||
}
|
||||
if (ret < 0) {
|
||||
ALOGE("Macloader error return code: %d", ret);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue