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<article id="content">
<header>
<h1 class="title">Module <code>pandare.qemu_logging</code></h1>
</header>
<section id="section-intro">
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class QEMU_Log_Manager:
'''
QEMU_Log_Manager
This class manages the QEMU log. It does so by manipulating two key QEMU
variables:
- qemu_loglevel: int mask of the log levels to be logged
- qemu_logfile: FILE* to the log file
It provides an equivalent method for setting the log file of the form:
- enable("[MEMBER_NAME]")
- disable("[MEMBER_NAME]")
It also accepts a comma separated list of strings:
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")
It also provides methods for setting a file to log to and a method to remove
the current log file.
The following log types are supported:
- TB_OUT_ASM
- TB_IN_ASM
- TB_OP,
- TB_OP_OPT
- EXTERNAL
- INT
- EXEC
- PCALL
- TB_CPU
- RESET
- UNIMP
- GUEST_ERROR
- MMU
- TB_NOCHAIN
- PAGE
- TRACE
- TB_OP_IND
- PANDA
- AVATAR
- TAINT_OPS
- RR
- LLVM_IR
- LLVM_ASM
'''
def __init__(self, panda):
self.panda = panda
log_members = {
"TB_OUT_ASM": 0,
"TB_IN_ASM": 1,
"TB_OP": 2,
"TB_OP_OPT": 3,
"INT": 4,
"EXEC": 5,
"PCALL": 6,
"TB_CPU": 8,
"RESET": 9,
"UNIMP":10,
"GUEST_ERROR":11,
"MMU":12,
"TB_NOCHAIN":13,
"PAGE":14,
"TRACE":15,
"TB_OP_IND":16,
"PANDA":17,
"AVATAR":18,
"TAINT_OPS":28,
"RR":29,
"LLVM_IR":30,
"LLVM_ASM":31,
}
self.log_members = log_members
def _set_log_level(self, log_level):
self.panda.libpanda.qemu_set_log(log_level)
def _get_log_level(self):
return self.panda.libpanda.qemu_loglevel
def _set_log_bit(self, bit):
self._set_log_level(self._get_log_level() | (1 << bit))
def _unset_log_bit(self, bit):
self._set_log_level(self._get_log_level() & ~(1 << bit))
def enable(self, name):
"""Enables the specified log level.
Args:
name (str): name of the log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._set_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)
def disable(self, name):
"""Disables the specified log level.
Args:
name (str): name of log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._unset_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)
def output_to_file(self, file_name, append=True):
"""Change qemu log file to file_name. If append is True, output will
be appended to the file. Otherwise, the file will be overwritten.
Args:
file_name ([str]): path to the file to output to
append (bool, optional): File append setting
"""
# qemu_logfile out previous file (if any)
self.remove_log_file()
# open new file
mode = b"a" if append else b"w"
self.panda.libpanda.qemu_logfile = self.panda.libpanda.fopen(file_name.encode(), mode)
def remove_log_file(self):
"""Removes the current log file. By default outputs to stdout."""
self.panda.libpanda.qemu_log_close()
def output_to_stderr(self):
"""Removes the current log file and outputs to stderr"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stderr
def output_to_stout(self):
"""Removes the current log file and outputs to stdout"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stdout
def log(self, msg):
"""Output message to PANDA log"""
# it's actually cheaper than asking if it is then setting it
self.enable("panda")
msg += "\n"
self.panda.libpanda.qemu_log(msg.encode())</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-classes">Classes</h2>
<dl>
<dt id="pandare.qemu_logging.QEMU_Log_Manager"><code class="flex name class">
<span>class <span class="ident">QEMU_Log_Manager</span></span>
<span>(</span><span>panda)</span>
</code></dt>
<dd>
<div class="desc"><p>QEMU_Log_Manager</p>
<p>This class manages the QEMU log. It does so by manipulating two key QEMU
variables:
- qemu_loglevel: int mask of the log levels to be logged
- qemu_logfile: FILE* to the log file</p>
<p>It provides an equivalent method for setting the log file of the form:
- enable("[MEMBER_NAME]")
- disable("[MEMBER_NAME]")</p>
<p>It also accepts a comma separated list of strings:
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")</p>
<p>It also provides methods for setting a file to log to and a method to remove
the current log file.</p>
<p>The following log types are supported:</p>
<pre><code>- TB_OUT_ASM
- TB_IN_ASM
- TB_OP,
- TB_OP_OPT
- EXTERNAL
- INT
- EXEC
- PCALL
- TB_CPU
- RESET
- UNIMP
- GUEST_ERROR
- MMU
- TB_NOCHAIN
- PAGE
- TRACE
- TB_OP_IND
- PANDA
- AVATAR
- TAINT_OPS
- RR
- LLVM_IR
- LLVM_ASM
</code></pre></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class QEMU_Log_Manager:
'''
QEMU_Log_Manager
This class manages the QEMU log. It does so by manipulating two key QEMU
variables:
- qemu_loglevel: int mask of the log levels to be logged
- qemu_logfile: FILE* to the log file
It provides an equivalent method for setting the log file of the form:
- enable("[MEMBER_NAME]")
- disable("[MEMBER_NAME]")
It also accepts a comma separated list of strings:
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")
- enable("[MEMBER_NAME],[MEMBER2_NAME],[MEMBER3_NAME]")
It also provides methods for setting a file to log to and a method to remove
the current log file.
The following log types are supported:
- TB_OUT_ASM
- TB_IN_ASM
- TB_OP,
- TB_OP_OPT
- EXTERNAL
- INT
- EXEC
- PCALL
- TB_CPU
- RESET
- UNIMP
- GUEST_ERROR
- MMU
- TB_NOCHAIN
- PAGE
- TRACE
- TB_OP_IND
- PANDA
- AVATAR
- TAINT_OPS
- RR
- LLVM_IR
- LLVM_ASM
'''
def __init__(self, panda):
self.panda = panda
log_members = {
"TB_OUT_ASM": 0,
"TB_IN_ASM": 1,
"TB_OP": 2,
"TB_OP_OPT": 3,
"INT": 4,
"EXEC": 5,
"PCALL": 6,
"TB_CPU": 8,
"RESET": 9,
"UNIMP":10,
"GUEST_ERROR":11,
"MMU":12,
"TB_NOCHAIN":13,
"PAGE":14,
"TRACE":15,
"TB_OP_IND":16,
"PANDA":17,
"AVATAR":18,
"TAINT_OPS":28,
"RR":29,
"LLVM_IR":30,
"LLVM_ASM":31,
}
self.log_members = log_members
def _set_log_level(self, log_level):
self.panda.libpanda.qemu_set_log(log_level)
def _get_log_level(self):
return self.panda.libpanda.qemu_loglevel
def _set_log_bit(self, bit):
self._set_log_level(self._get_log_level() | (1 << bit))
def _unset_log_bit(self, bit):
self._set_log_level(self._get_log_level() & ~(1 << bit))
def enable(self, name):
"""Enables the specified log level.
Args:
name (str): name of the log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._set_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)
def disable(self, name):
"""Disables the specified log level.
Args:
name (str): name of log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._unset_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)
def output_to_file(self, file_name, append=True):
"""Change qemu log file to file_name. If append is True, output will
be appended to the file. Otherwise, the file will be overwritten.
Args:
file_name ([str]): path to the file to output to
append (bool, optional): File append setting
"""
# qemu_logfile out previous file (if any)
self.remove_log_file()
# open new file
mode = b"a" if append else b"w"
self.panda.libpanda.qemu_logfile = self.panda.libpanda.fopen(file_name.encode(), mode)
def remove_log_file(self):
"""Removes the current log file. By default outputs to stdout."""
self.panda.libpanda.qemu_log_close()
def output_to_stderr(self):
"""Removes the current log file and outputs to stderr"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stderr
def output_to_stout(self):
"""Removes the current log file and outputs to stdout"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stdout
def log(self, msg):
"""Output message to PANDA log"""
# it's actually cheaper than asking if it is then setting it
self.enable("panda")
msg += "\n"
self.panda.libpanda.qemu_log(msg.encode())</code></pre>
</details>
<h3>Methods</h3>
<dl>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.disable"><code class="name flex">
<span>def <span class="ident">disable</span></span>(<span>self, name)</span>
</code></dt>
<dd>
<div class="desc"><p>Disables the specified log level.</p>
<h2 id="args">Args</h2>
<dl>
<dt><strong><code>name</code></strong> : <code>str</code></dt>
<dd>name of log type (for list -d ?) or comma</dd>
</dl>
<p>separated list of names.</p>
<h2 id="raises">Raises</h2>
<dl>
<dt><code>Exception</code></dt>
<dd>no such log member</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def disable(self, name):
"""Disables the specified log level.
Args:
name (str): name of log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._unset_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.enable"><code class="name flex">
<span>def <span class="ident">enable</span></span>(<span>self, name)</span>
</code></dt>
<dd>
<div class="desc"><p>Enables the specified log level.</p>
<h2 id="args">Args</h2>
<dl>
<dt><strong><code>name</code></strong> : <code>str</code></dt>
<dd>name of the log type (for list -d ?) or comma</dd>
</dl>
<p>separated list of names.</p>
<h2 id="raises">Raises</h2>
<dl>
<dt><code>Exception</code></dt>
<dd>no such log member</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def enable(self, name):
"""Enables the specified log level.
Args:
name (str): name of the log type (for list -d ?) or comma
separated list of names.
Raises:
Exception: no such log member
"""
if name.upper() in self.log_members:
self._set_log_bit(self.log_members[name.upper()])
else:
raise Exception("no such log member: " + name)</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.log"><code class="name flex">
<span>def <span class="ident">log</span></span>(<span>self, msg)</span>
</code></dt>
<dd>
<div class="desc"><p>Output message to PANDA log</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def log(self, msg):
"""Output message to PANDA log"""
# it's actually cheaper than asking if it is then setting it
self.enable("panda")
msg += "\n"
self.panda.libpanda.qemu_log(msg.encode())</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.output_to_file"><code class="name flex">
<span>def <span class="ident">output_to_file</span></span>(<span>self, file_name, append=True)</span>
</code></dt>
<dd>
<div class="desc"><p>Change qemu log file to file_name. If append is True, output will
be appended to the file. Otherwise, the file will be overwritten.</p>
<h2 id="args">Args</h2>
<dl>
<dt><strong><code>file_name</code></strong> : <code>[str]</code></dt>
<dd>path to the file to output to</dd>
<dt><strong><code>append</code></strong> : <code>bool</code>, optional</dt>
<dd>File append setting</dd>
</dl></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def output_to_file(self, file_name, append=True):
"""Change qemu log file to file_name. If append is True, output will
be appended to the file. Otherwise, the file will be overwritten.
Args:
file_name ([str]): path to the file to output to
append (bool, optional): File append setting
"""
# qemu_logfile out previous file (if any)
self.remove_log_file()
# open new file
mode = b"a" if append else b"w"
self.panda.libpanda.qemu_logfile = self.panda.libpanda.fopen(file_name.encode(), mode)</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.output_to_stderr"><code class="name flex">
<span>def <span class="ident">output_to_stderr</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"><p>Removes the current log file and outputs to stderr</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def output_to_stderr(self):
"""Removes the current log file and outputs to stderr"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stderr</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.output_to_stout"><code class="name flex">
<span>def <span class="ident">output_to_stout</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"><p>Removes the current log file and outputs to stdout</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def output_to_stout(self):
"""Removes the current log file and outputs to stdout"""
self.remove_log_file()
self.panda.libpanda.qemu_logfile = self.panda.libpanda.stdout</code></pre>
</details>
</dd>
<dt id="pandare.qemu_logging.QEMU_Log_Manager.remove_log_file"><code class="name flex">
<span>def <span class="ident">remove_log_file</span></span>(<span>self)</span>
</code></dt>
<dd>
<div class="desc"><p>Removes the current log file. By default outputs to stdout.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def remove_log_file(self):
"""Removes the current log file. By default outputs to stdout."""
self.panda.libpanda.qemu_log_close()</code></pre>
</details>
</dd>
</dl>
</dd>
</dl>
</section>
</article>
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<h1>Index</h1>
<div class="toc">
<ul></ul>
</div>
<ul id="index">
<li><h3>Super-module</h3>
<ul>
<li><code><a title="pandare" href="index.html">pandare</a></code></li>
</ul>
</li>
<li><h3><a href="#header-classes">Classes</a></h3>
<ul>
<li>
<h4><code><a title="pandare.qemu_logging.QEMU_Log_Manager" href="#pandare.qemu_logging.QEMU_Log_Manager">QEMU_Log_Manager</a></code></h4>
<ul class="two-column">
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.disable" href="#pandare.qemu_logging.QEMU_Log_Manager.disable">disable</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.enable" href="#pandare.qemu_logging.QEMU_Log_Manager.enable">enable</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.log" href="#pandare.qemu_logging.QEMU_Log_Manager.log">log</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.output_to_file" href="#pandare.qemu_logging.QEMU_Log_Manager.output_to_file">output_to_file</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.output_to_stderr" href="#pandare.qemu_logging.QEMU_Log_Manager.output_to_stderr">output_to_stderr</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.output_to_stout" href="#pandare.qemu_logging.QEMU_Log_Manager.output_to_stout">output_to_stout</a></code></li>
<li><code><a title="pandare.qemu_logging.QEMU_Log_Manager.remove_log_file" href="#pandare.qemu_logging.QEMU_Log_Manager.remove_log_file">remove_log_file</a></code></li>
</ul>
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