1376 lines
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2019-03-16
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690 字
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2 分种
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<h1 id="小米固件工具mkxqimage"><a href="#小米固件工具mkxqimage" class="headerlink" title="小米固件工具mkxqimage"></a>小米固件工具mkxqimage</h1><p>小米自己改了个打包解包固件的工具，基于 trx 改的（本质上还是 trx 格式），加了 RSA 验证和解包功能，路由系统里自带：<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">Usage:</span><br><span class="line">mkxqimg [-o outfile] [-p private_key] [-f file] [-f file [-f file [-f file ]]]</span><br><span class="line"> [-x file]</span><br><span class="line"> [-I]</span><br></pre></td></tr></table></figure></p>
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<h2 id="固件解包"><a href="#固件解包" class="headerlink" title="固件解包"></a>固件解包</h2><p>固件工具mkxqimage完成对固件的解包，在解包前先检查Checksum是否正确，然后利用RSA公钥/usr/share/xiaoqiang/public.pem检查RSA签名，这两个步骤通过后，根据[0x0C]的固件类型，以及[0x10]、[0x14]、[0x18]和[0x1C]的4个偏移量拆分固件。</p>
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<h2 id="固件打包"><a href="#固件打包" class="headerlink" title="固件打包"></a>固件打包</h2><p>小米官方在打包固件时用RSA私钥计算出固件的RSA签名，小米路由器下载固件后用RSA公钥来验证RSA签名，有效地防止固件被篡改。</p>
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<h2 id="固件格式"><a href="#固件格式" class="headerlink" title="固件格式"></a><a href="http://www.iptvfans.cn/wiki/index.php/%E5%B0%8F%E7%B1%B3%E8%B7%AF%E7%94%B1%E5%99%A8%E5%9B%BA%E4%BB%B6%E5%88%86%E6%9E%90" target="_blank" rel="noopener">固件格式</a></h2><p>路由固件的格式，基本是基于 openwrt 的 trx 这个简单的二进制文件格式<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">48 44 52 30 63 D4 11 03 FE 3D 1A FD 05 00 02 00</span><br><span class="line">20 00 00 00 20 00 FE 00 00 00 00 00 00 00 00 00</span><br><span class="line">FF 04 00 EA 14 F0 9F E5 14 F0 9F E5 14 F0 9F E5</span><br></pre></td></tr></table></figure></p>
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<p>第1～4字节：ASCII字符串“HDR0”，作为固件的标识；<br>第5～8字节：4字节整型数0x0311D464，表示固件的大小：51500132字节；<br>第9~12字节：固件的检查和；<br>第13～14字节：0x0005，表示固件中包含哪些部分；<br>第15～16字节：0x0002，表示固件格式版本号；<br>第17～20字节：0x00000020，表示固件第一部分在整个固件中的偏移量，0.4.85固件的第一部分是brcm4709_nor.bin，也就是Flash中除0xfe0000-0xff0000的board_data外的全镜像；<br>第21～24字节：0x00FE0020，表示固件第二部分在整个固件中的偏移量，0.4.85固件的第二部分是root.ext4.lzma，也就是硬盘中128M固件的压缩包；<br>第33字节开始是固件的正式内容开始。</p>
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<h2 id="小米开启ssh工具包"><a href="#小米开启ssh工具包" class="headerlink" title="小米开启ssh工具包"></a>小米开启ssh工具包</h2><p>使用mkxqimage解包<br>（现在会提示秘钥不存在）<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">error fopen public key</span><br><span class="line">Image verify failed, not formal image</span><br></pre></td></tr></table></figure></p>
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<p>如果能解包应该可以得到脚本文件upsetting.sh</p>
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<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">#!/bin/sh</span><br><span class="line">nvram set ssh_en=1</span><br><span class="line">nvram set flag_init_root_pwd=1</span><br><span class="line">nvram commit</span><br></pre></td></tr></table></figure>
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<p>执行脚本文件upsetting.sh后，将ssh_en设置为1，同时设置了flag_init_root_pwd项。当正式启动时，/usr/sbin/boot_check脚本检测到flag_init_root_pwd=1时，自动修改root用户密码，具体脚本为：<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">flg_init_pwd=`nvram get flag_init_root_pwd`</span><br><span class="line">if [ "$flg_init_pwd" = "1" ]; then</span><br><span class="line"> init_pwd=`mkxqimage -I`</span><br><span class="line"> (echo $init_pwd; sleep 1; echo $init_pwd) | passwd root</span><br><span class="line"> nvram unset flag_init_root_pwd</span><br><span class="line"> nvram commit</span><br><span class="line">fi</span><br></pre></td></tr></table></figure></p>
|
||
<p>初始密码是mkxqimage -I的结果，实际是根据路由器的序列号计算得到。路由器的序列号印在底盖上，12位数字，如：561000088888</p>
|
||
<p>初始密码计算算法为：</p>
|
||
<p><code>substr(md5(SN+"A2E371B0-B34B-48A5-8C40-A7133F3B5D88"), 0, 8)</code></p>
|
||
<p><strong><em>A2E371B0-B34B-48A5-8C40-A7133F3B5D88</em></strong> 为分析mkxqimage得到的salt</p>
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while ((position = text.indexOf(word, startPosition)) > -1) {
|
||
index.push({position: position, word: word});
|
||
startPosition = position + wordLen;
|
||
}
|
||
return index;
|
||
}
|
||
|
||
indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
|
||
indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
|
||
});
|
||
if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
|
||
isMatch = true;
|
||
hitCount = indexOfTitle.length + indexOfContent.length;
|
||
}
|
||
}
|
||
|
||
// show search results
|
||
|
||
if (isMatch) {
|
||
// sort index by position of keyword
|
||
|
||
[indexOfTitle, indexOfContent].forEach(function (index) {
|
||
index.sort(function (itemLeft, itemRight) {
|
||
if (itemRight.position !== itemLeft.position) {
|
||
return itemRight.position - itemLeft.position;
|
||
} else {
|
||
return itemLeft.word.length - itemRight.word.length;
|
||
}
|
||
});
|
||
});
|
||
|
||
// merge hits into slices
|
||
|
||
function mergeIntoSlice(text, start, end, index) {
|
||
var item = index[index.length - 1];
|
||
var position = item.position;
|
||
var word = item.word;
|
||
var hits = [];
|
||
var searchTextCountInSlice = 0;
|
||
while (position + word.length <= end && index.length != 0) {
|
||
if (word === searchText) {
|
||
searchTextCountInSlice++;
|
||
}
|
||
hits.push({position: position, length: word.length});
|
||
var wordEnd = position + word.length;
|
||
|
||
// move to next position of hit
|
||
|
||
index.pop();
|
||
while (index.length != 0) {
|
||
item = index[index.length - 1];
|
||
position = item.position;
|
||
word = item.word;
|
||
if (wordEnd > position) {
|
||
index.pop();
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
searchTextCount += searchTextCountInSlice;
|
||
return {
|
||
hits: hits,
|
||
start: start,
|
||
end: end,
|
||
searchTextCount: searchTextCountInSlice
|
||
};
|
||
}
|
||
|
||
var slicesOfTitle = [];
|
||
if (indexOfTitle.length != 0) {
|
||
slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
|
||
}
|
||
|
||
var slicesOfContent = [];
|
||
while (indexOfContent.length != 0) {
|
||
var item = indexOfContent[indexOfContent.length - 1];
|
||
var position = item.position;
|
||
var word = item.word;
|
||
// cut out 100 characters
|
||
var start = position - 20;
|
||
var end = position + 80;
|
||
if(start < 0){
|
||
start = 0;
|
||
}
|
||
if (end < position + word.length) {
|
||
end = position + word.length;
|
||
}
|
||
if(end > content.length){
|
||
end = content.length;
|
||
}
|
||
slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
|
||
}
|
||
|
||
// sort slices in content by search text's count and hits' count
|
||
|
||
slicesOfContent.sort(function (sliceLeft, sliceRight) {
|
||
if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
|
||
return sliceRight.searchTextCount - sliceLeft.searchTextCount;
|
||
} else if (sliceLeft.hits.length !== sliceRight.hits.length) {
|
||
return sliceRight.hits.length - sliceLeft.hits.length;
|
||
} else {
|
||
return sliceLeft.start - sliceRight.start;
|
||
}
|
||
});
|
||
|
||
// select top N slices in content
|
||
|
||
var upperBound = parseInt('1');
|
||
if (upperBound >= 0) {
|
||
slicesOfContent = slicesOfContent.slice(0, upperBound);
|
||
}
|
||
|
||
// highlight title and content
|
||
|
||
function highlightKeyword(text, slice) {
|
||
var result = '';
|
||
var prevEnd = slice.start;
|
||
slice.hits.forEach(function (hit) {
|
||
result += text.substring(prevEnd, hit.position);
|
||
var end = hit.position + hit.length;
|
||
result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
|
||
prevEnd = end;
|
||
});
|
||
result += text.substring(prevEnd, slice.end);
|
||
return result;
|
||
}
|
||
|
||
var resultItem = '';
|
||
|
||
if (slicesOfTitle.length != 0) {
|
||
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
|
||
} else {
|
||
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
|
||
}
|
||
|
||
slicesOfContent.forEach(function (slice) {
|
||
resultItem += "<a href='" + articleUrl + "'>" +
|
||
"<p class=\"search-result\">" + highlightKeyword(content, slice) +
|
||
"...</p>" + "</a>";
|
||
});
|
||
|
||
resultItem += "</li>";
|
||
resultItems.push({
|
||
item: resultItem,
|
||
searchTextCount: searchTextCount,
|
||
hitCount: hitCount,
|
||
id: resultItems.length
|
||
});
|
||
}
|
||
})
|
||
};
|
||
if (keywords.length === 1 && keywords[0] === "") {
|
||
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
|
||
} else if (resultItems.length === 0) {
|
||
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
|
||
} else {
|
||
resultItems.sort(function (resultLeft, resultRight) {
|
||
if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
|
||
return resultRight.searchTextCount - resultLeft.searchTextCount;
|
||
} else if (resultLeft.hitCount !== resultRight.hitCount) {
|
||
return resultRight.hitCount - resultLeft.hitCount;
|
||
} else {
|
||
return resultRight.id - resultLeft.id;
|
||
}
|
||
});
|
||
var searchResultList = '<ul class=\"search-result-list\">';
|
||
resultItems.forEach(function (result) {
|
||
searchResultList += result.item;
|
||
})
|
||
searchResultList += "</ul>";
|
||
resultContent.innerHTML = searchResultList;
|
||
}
|
||
}
|
||
|
||
if ('auto' === 'auto') {
|
||
input.addEventListener('input', inputEventFunction);
|
||
} else {
|
||
$('.search-icon').click(inputEventFunction);
|
||
input.addEventListener('keypress', function (event) {
|
||
if (event.keyCode === 13) {
|
||
inputEventFunction();
|
||
}
|
||
});
|
||
}
|
||
|
||
// remove loading animation
|
||
$(".local-search-pop-overlay").remove();
|
||
$('body').css('overflow', '');
|
||
|
||
proceedsearch();
|
||
}
|
||
});
|
||
}
|
||
|
||
// handle and trigger popup window;
|
||
$('.popup-trigger').click(function(e) {
|
||
e.stopPropagation();
|
||
if (isfetched === false) {
|
||
searchFunc(path, 'local-search-input', 'local-search-result');
|
||
} else {
|
||
proceedsearch();
|
||
};
|
||
});
|
||
|
||
$('.popup-btn-close').click(onPopupClose);
|
||
$('.popup').click(function(e){
|
||
e.stopPropagation();
|
||
});
|
||
$(document).on('keyup', function (event) {
|
||
var shouldDismissSearchPopup = event.which === 27 &&
|
||
$('.search-popup').is(':visible');
|
||
if (shouldDismissSearchPopup) {
|
||
onPopupClose();
|
||
}
|
||
});
|
||
</script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script src="https://cdn1.lncld.net/static/js/av-core-mini-0.6.4.js"></script>
|
||
<script>AV.initialize("EWwoJgHNdlj6iBjiFlMcabUO-gzGzoHsz", "x8FxDrYG79C8YFrTww9ljo8K");</script>
|
||
<script>
|
||
function showTime(Counter) {
|
||
var query = new AV.Query(Counter);
|
||
var entries = [];
|
||
var $visitors = $(".leancloud_visitors");
|
||
|
||
$visitors.each(function () {
|
||
entries.push( $(this).attr("id").trim() );
|
||
});
|
||
|
||
query.containedIn('url', entries);
|
||
query.find()
|
||
.done(function (results) {
|
||
var COUNT_CONTAINER_REF = '.leancloud-visitors-count';
|
||
|
||
if (results.length === 0) {
|
||
$visitors.find(COUNT_CONTAINER_REF).text(0);
|
||
return;
|
||
}
|
||
|
||
for (var i = 0; i < results.length; i++) {
|
||
var item = results[i];
|
||
var url = item.get('url');
|
||
var time = item.get('time');
|
||
var element = document.getElementById(url);
|
||
|
||
$(element).find(COUNT_CONTAINER_REF).text(time);
|
||
}
|
||
for(var i = 0; i < entries.length; i++) {
|
||
var url = entries[i];
|
||
var element = document.getElementById(url);
|
||
var countSpan = $(element).find(COUNT_CONTAINER_REF);
|
||
if( countSpan.text() == '') {
|
||
countSpan.text(0);
|
||
}
|
||
}
|
||
})
|
||
.fail(function (object, error) {
|
||
console.log("Error: " + error.code + " " + error.message);
|
||
});
|
||
}
|
||
|
||
function addCount(Counter) {
|
||
var $visitors = $(".leancloud_visitors");
|
||
var url = $visitors.attr('id').trim();
|
||
var title = $visitors.attr('data-flag-title').trim();
|
||
var query = new AV.Query(Counter);
|
||
|
||
query.equalTo("url", url);
|
||
query.find({
|
||
success: function(results) {
|
||
if (results.length > 0) {
|
||
var counter = results[0];
|
||
counter.fetchWhenSave(true);
|
||
counter.increment("time");
|
||
counter.save(null, {
|
||
success: function(counter) {
|
||
var $element = $(document.getElementById(url));
|
||
$element.find('.leancloud-visitors-count').text(counter.get('time'));
|
||
},
|
||
error: function(counter, error) {
|
||
console.log('Failed to save Visitor num, with error message: ' + error.message);
|
||
}
|
||
});
|
||
} else {
|
||
var newcounter = new Counter();
|
||
/* Set ACL */
|
||
var acl = new AV.ACL();
|
||
acl.setPublicReadAccess(true);
|
||
acl.setPublicWriteAccess(true);
|
||
newcounter.setACL(acl);
|
||
/* End Set ACL */
|
||
newcounter.set("title", title);
|
||
newcounter.set("url", url);
|
||
newcounter.set("time", 1);
|
||
newcounter.save(null, {
|
||
success: function(newcounter) {
|
||
var $element = $(document.getElementById(url));
|
||
$element.find('.leancloud-visitors-count').text(newcounter.get('time'));
|
||
},
|
||
error: function(newcounter, error) {
|
||
console.log('Failed to create');
|
||
}
|
||
});
|
||
}
|
||
},
|
||
error: function(error) {
|
||
console.log('Error:' + error.code + " " + error.message);
|
||
}
|
||
});
|
||
}
|
||
|
||
$(function() {
|
||
var Counter = AV.Object.extend("Counter");
|
||
if ($('.leancloud_visitors').length == 1) {
|
||
addCount(Counter);
|
||
} else if ($('.post-title-link').length > 1) {
|
||
showTime(Counter);
|
||
}
|
||
});
|
||
</script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</body>
|
||
</html>
|