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Java bindings for Yara

License: Apache License 2.0

Java 93.01% C 5.66% M4 0.45% YARA 0.88%

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yara-java's Issues

Buffer over-read possible with yara_match_value()

1894dd7 modified yara_match_value to account for changes in Yara 3.5.0. It appears that this was not done correctly and can result in over-reading the YARA_MATCH->data buffer. According to the Yara documentation data_length should be used as the actual length of data. match_length is the true length of the match, but not necessarily the length of the data buffer.

How to exactly use yara-java

I tried building yara-java on Ubuntu and even the terminal inside Android Studio but the tests failed so I built it without the test cases, using the command mvn install -DskipTests.
I wanted to run a main program with some rules on a test file, to achieve this how should I go about it?
Also, I want to do so on Android Studio, so is it possible to use yara-java on Android Studio?
Any help will be much appreciated!

Build fails on 64-bit Windows at hawtjni-plugin

I'm building yara-java on a 64-bit Windows 7 machine. Following the instructions on the main Github page, I get stuck at "mvn clean install":

$ mvn clean install -e
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.github.plusvic:libyara:jar:3.5.0-SNAPSHOT
[WARNING] The expression ${artifactId} is deprecated. Please use ${project.artifactId} instead.
[WARNING] The expression ${version} is deprecated. Please use ${project.version} instead.
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building libyara 3.5.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.3:clean (default-clean) @ libyara ---
[INFO] Deleting file set: C:\users\elliott\git\yara\yara-java\target (included: [**], excluded: [])
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ libyara ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\users\elliott\git\yara\yara-java\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ libyara ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 38 source files to C:\users\elliott\git\yara\yara-java\target\classes
[INFO]
[INFO] --- maven-hawtjni-plugin:1.14:generate (default) @ libyara ---
[INFO] Analyzing classes...
[INFO] Generating...
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\yara-wrapper.c
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\yara-wrapper_stats.h
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\yara-wrapper_stats.c
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\yara-wrapper_structs.h
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\yara-wrapper_structs.c
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\hawtjni.h
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\hawtjni.c
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\hawtjni-callback.c
[INFO] Wrote: C:\users\elliott\git\yara\yara-java\target\generated-sources\hawtjni\native-src\windows\stdint.h
[INFO] Done.
[INFO]
[INFO] --- maven-hawtjni-plugin:1.14:build (default) @ libyara ---
[INFO] executing: cmd.exe /X /C "vcbuild /platform:x64 vs2008.vcproj release"
[INFO] Microsoft (R) Visual C++ Project Builder - Command Line Version 9.00.30729
[INFO] Copyright (C) Microsoft Corporation. All rights reserved.
[INFO]
[INFO] Build started: Project: yara-wrapper, Configuration: release|x64
[INFO] Compiling...
[INFO] yara-wrapper_structs.c
[INFO] c:\users\elliott\git\yara\yara-java\target\native-build\src\yara-wrapper.h(4) : fatal error C1083: Cannot open include file: 'yara.h': No such file or directory
[INFO] yara-wrapper_stats.c
[INFO] yara-wrapper.c
[INFO] c:\users\elliott\git\yara\yara-java\target\native-build\src\yara-wrapper.h(4) : fatal error C1083: Cannot open include file: 'yara.h': No such file or directory
[INFO] hawtjni.c
[INFO] hawtjni-callback.c
[INFO] 1>.\src\hawtjni-callback.c(779) : warning C4244: 'return' : conversion from 'jlong' to 'jint', possible loss of data
[INFO] Build log was saved at "file://c:\Users\elliott\git\yara\yara-java\target\native-build\target\x64-release\obj\BuildLog.htm"
[INFO] yara-wrapper - 2 error(s), 1 warning(s)
[INFO] rc: 1
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.883 s
[INFO] Finished at: 2017-01-16T16:00:45-07:00
[INFO] Final Memory: 18M/220M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.fusesource.hawtjni:maven-hawtjni-plugin:1.14:build (default) on project libyara: build failed: org.apache.maven.plugin.MojoExecutionException: vcbuild failed with exit code: 1 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.fusesource.hawtjni:maven-hawtjni-plugin:1.14:build (default) on project libyara: build failed: org.apache.maven.plugin.MojoExecutionException: vcbuild failed with exit code: 1
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: build failed: org.apache.maven.plugin.MojoExecutionException: vcbuild failed with exit code: 1
        at org.fusesource.hawtjni.maven.BuildMojo.execute(BuildMojo.java:254)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        ... 20 more
Caused by: org.apache.maven.plugin.MojoExecutionException: vcbuild failed with exit code: 1
        at org.fusesource.hawtjni.maven.BuildMojo.vsBasedBuild(BuildMojo.java:308)
        at org.fusesource.hawtjni.maven.BuildMojo.execute(BuildMojo.java:243)
        ... 22 more
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

I essentially understand the "No such file or directory" errors - it can't locate the rest of the YARA C++ files it needs to build the wrapper project - but I'm not sure what to try debugging from here. It just looks like some of the C++ source files aren't getting copied, or maybe the yara-wrapper header can't locate the source files in their original locations.

I'm not an expert with Maven or C++ compilers, but I noticed that there's no profile in the pom file for Windows... does this need to be added?

Let me know if I can provide any additional information.

Question regarding thread safety

I would like to use yara-java in a multithreaded environment. Which classes can be reused across multiple threads and which cannot? I am using the same rules for all files that I scan. In a simple performance test I get close to a 50% performance increase when reusing the YaraScanner object. I just don't know if it is safe to do so.

Build fails on Linux on hawtjni-plugin step

Hi,

I've tried to build yara-java on OpenSuse Leap and I followed instructions to clone and make Yara first of all and after that clone yara-java to corresponding directory and run mvn clean install there.

I noticed that hawtjni-plugin plugin was configured only for mac, so I've added unix profile as

<id>unix</id>
<activation><os><family>unix</family></os></activation>
<build>
    <plugins>
        <plugin>
            <groupId>org.fusesource.hawtjni</groupId>
            <artifactId>maven-hawtjni-plugin</artifactId>
            <configuration>
                <osgiPlatforms>
                    <osgiPlatform>osname=Linux;processor=x86-64</osgiPlatform>
                </osgiPlatforms>
                <configureArgs>
                    <arg>--with-universal=x86_64</arg>
                    <arg>--disable-shared</arg>
                </configureArgs>
                <platform>linux64</platform>
            </configuration>
        </plugin>
    </plugins>
</build>

without --disable-shared arg I'm getting error

[INFO] *** static library /opt/workspace/samples/yara/yara-java/target/native-build/../../../libyara/.libs/libyara.a is not portable!
[INFO] libtool: link: gcc -shared  -fPIC -DPIC  src/.libs/yara-wrapper_stats.o src/.libs/yara-wrapper.o src/.libs/yara-wrapper_structs.o src/.libs/hawtjni.o src/.libs/hawtjni-callback.o   /opt/workspace/samples/yara/yara-java/target/native-build/../../../libyara/.libs/libyara.a  -O2   -Wl,-soname -Wl,libyara-wrapper-3.4.0-SNAPSHOT.so -o .libs/libyara-wrapper-3.4.0-SNAPSHOT.so
[INFO] /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: /opt/workspace/samples/yara/yara-java/target/native-build/../../../libyara/.libs/libyara.a(compiler.o): relocation R_X86_64_32 against `yr_object_destroy' can not be used when making a shared object; recompile with -fPIC
[INFO] /opt/workspace/samples/yara/yara-java/target/native-build/../../../libyara/.libs/libyara.a: error adding symbols: Bad value

and with --disable-shared as in config above, I'm getting

Make based build did not generate: /opt/workspace/samples/yara/yara-java/target/native-build/target/lib/libyara-wrapper.so

but in the same time I see in lib64 directory that wrapper library is generated as .a:

yara-java/target/native-build/target/lib64> ls
libyara-wrapper.a  libyara-wrapper.la

@p8a, have you checked yara-java on non-mac platforms? May be you have advices about solving this issue

Build fails on Windows 8.1....missing yara.h file.

Trying to build yara-java on Windows 8.1/64 bit. Per the readme.md file, I installed the Windows 7 SDK (which went fine) and then when building, I get the following. I must be missing something as I don't see a yara.h file anywhere. You can I use Netbeans. I also just tried it directly in a command window running:

vcbuild /platform:x64 vs2008.vcproj release

And got the same set of errors:

Compiling...
yara-wrapper_structs.c
c:\users\gshepherd\documents\netbeansprojects\yara-java\target\native-build\src\yara-wrapper.h(4) : fatal error C1083: Cannot open include file: 'yara.h': No such file or directory
yara-wrapper.c
c:\users\gshepherd\documents\netbeansprojects\yara-java\target\native-build\src\yara-wrapper.h(4) : fatal error C1083: Cannot open include file: 'yara.h': No such file or directory
Build log was saved at "file://c:\Users\gshepherd\Documents\NetBeansProjects\yara-java\target\native-build\target\x64-release\obj\BuildLog.htm"
yara-wrapper - 2 error(s), 0 warning(s)

What am I missing?

License for Project

I do not see any license information in the project. Did you intend to release it under one of the open source licenses (such as the MIT or apache license)?

Native build / OS X 10.11.6

Configuration:
Macbook Pro Mid-2015 / OS X 10.11.6
openssl 1.0.2 installed separately to /usr/local/opt/openssl

configure [maven-hawtjni-plugin] was blowing up on the separate <arg>-L/usr/local/opt/openssl/lib</arg>. I found it builds correctly by combining all the linker arguments into the same <arg/>:

<arg>LDFLAGS=${jni-with-crypto} -L/usr/local/opt/openssl/lib -lcrypto</arg>

Do you know if anyone else has run into this issue?

error: 'YR_MATCH' has no member named 'match_length'

When I build yara-java on Linux64 I get
[INFO] executing: /bin/sh -c make install [INFO] /bin/sh ./libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -I/home/m91snik/workspace/samples/yara/yara-java/target/native-build/../../../libyara/include -I/opt/env/jdk1.8.0_65/include -I/opt/env/jdk1.8.0_65/include/linux -c -o src/yara-wrapper.lo src/yara-wrapper.c [INFO] libtool: compile: gcc -DHAVE_CONFIG_H -I. -I./src -g -O2 -I/home/m91snik/workspace/samples/yara/yara-java/target/native-build/../../../libyara/include -I/opt/env/jdk1.8.0_65/include -I/opt/env/jdk1.8.0_65/include/linux -c src/yara-wrapper.c -fPIC -DPIC -o src/.libs/yara-wrapper.o [INFO] In file included from src/yara-wrapper.c:2:0: [INFO] src/yara-wrapper.h: In function 'yara_match_value': [INFO] src/yara-wrapper.h:145:36: error: 'YR_MATCH' has no member named 'match_length' [INFO] if (0 != (buffer = malloc(match->match_length + 1))) { [INFO] ^ [INFO] src/yara-wrapper.h:146:32: error: 'YR_MATCH' has no member named 'match_length' [INFO] memset(buffer, 0, match->match_length + 1); [INFO] ^ [INFO] In file included from /usr/include/string.h:631:0, [INFO] from /home/m91snik/workspace/samples/yara/yara-java/target/native-build/../../../libyara/include/yara/modules.h:22, [INFO] from /home/m91snik/workspace/samples/yara/yara-java/target/native-build/../../../libyara/include/yara.h:23, [INFO] from src/yara-wrapper.h:4, [INFO] from src/yara-wrapper.c:2: [INFO] src/yara-wrapper.h:147:57: error: 'YR_MATCH' has no member named 'match_length' [INFO] strncpy(buffer, (const char* )match->data, match->match_length);

@p8a , please note that I was able to build yara-java on Linux64 after this fix #11, but now it's not possible again.

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