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@courville
Last active Nov 15, 2019
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Simple jcifs-ng cli test program
import jcifs.smb.SmbFile;
import jcifs.context.BaseContext;
import jcifs.smb.NtlmPasswordAuthenticator;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.smb.SmbException;
import jcifs.smb.SmbAuthException;
import java.net.MalformedURLException;
import jcifs.config.PropertyConfiguration;
import java.util.Properties;
import java.io.File;
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
public class smbcli {
final static Logger logger = Logger.getLogger(smbcli.class);
private static Properties prop = null;
private static CIFSContext baseContextSmb1 = createContext(false);
private static CIFSContext baseContextSmb2 = createContext(true);
static boolean isRootOrWorkgroup(String path) {
boolean isRootOrWorkgroup = false;
try {
SmbFile smbFile = new SmbFile(path, getBaseContext(false));
int type = getType(smbFile);
// Note: TYPE_WORKGROUP is also returned for the root
if (type == SmbFile.TYPE_WORKGROUP) {
isRootOrWorkgroup = true;
}
} catch (MalformedURLException e) {
//Log.e(TAG, "MalformedURLException: ", e);
e.printStackTrace();
}
return isRootOrWorkgroup;
}
static int getType(SmbFile smbFile) {
// TODO: Workaround for issue where jcifs-ng throws SmbAuthException when getting type of password protected Share
int type;
try {
type = smbFile.getType();
} catch (SmbAuthException e) {
type = SmbFile.TYPE_SHARE;
} catch (SmbException e) {
type = SmbFile.TYPE_FILESYSTEM;
}
return (type);
}
private static CIFSContext createContext(boolean isSmb2) {
prop = new Properties();
prop.putAll(System.getProperties());
prop.put("jcifs.smb.client.enableSMB2", String.valueOf(isSmb2));
prop.put("jcifs.smb.client.disableSMB1", "false");
prop.put("jcifs.traceResources", "true");
prop.put("jcifs.resolveOrder", "BCAST,DNS");
// get around https://github.com/AgNO3/jcifs-ng/issues/40
prop.put("jcifs.smb.client.ipcSigningEnforced", "false");
// allow plaintext password fallback
prop.put("jcifs.smb.client.disablePlainTextPasswords", "false");
// disable dfs makes win10 shares with ms account work
prop.put("jcifs.smb.client.dfs.disabled", "true");
// this is needed to allow connection to MacOS 10.12.5 and higher according to https://github.com/IdentityAutomation/vfs-jcifs-ng/blob/master/src/test/java/net/idauto/oss/jcifsng/vfs2/provider/SmbProviderTestCase.java
// prop.put("jcifs.smb.client.signingEnforced", "true");
// makes Guest work on Win10 https://github.com/AgNO3/jcifs-ng/issues/186
prop.put("jcifs.smb.client.disableSpnegoIntegrity", "false");
// test for Guest on MacOS
//prop.put("jcifs.netbios.hostname", "imarc");
PropertyConfiguration propertyConfiguration = null;
try {
propertyConfiguration = new PropertyConfiguration(prop);
} catch (CIFSException e) {
logger.warn("Caught a CIFSException on PropertyConfiguration", e);
}
return new BaseContext(propertyConfiguration);
}
public static CIFSContext getBaseContext(boolean isSmb2) {
return isSmb2 ? baseContextSmb2 : baseContextSmb1;
}
public static void main(String args[]) throws Exception {
String log4jConfigFile = System.getProperty("user.dir") + File.separator + "log4j.properties";
PropertyConfigurator.configure(log4jConfigFile);
boolean noAuth = false;
SmbFile smbFile = null;
if (args.length == 0 || (args.length > 2 && args.length < 5)) {
System.out.println("Proper Usage is: 1|2 smb://server/share/ [domain user password]");
System.exit(0);
}
if (args.length == 2) noAuth = true;
boolean SMB2 = (args[0].equals("2"));
if (SMB2) logger.info("Enabling SMB2");
CIFSContext baseContext = getBaseContext(SMB2);
NtlmPasswordAuthenticator auth = null;
if (noAuth)
auth = new NtlmPasswordAuthenticator("", "GUEST", "");
else
auth = new NtlmPasswordAuthenticator(args[2], args[3], args[4]);
CIFSContext ctx = baseContext.withCredentials(auth);
smbFile = new SmbFile(args[1], ctx);
int type;
try {
type = smbFile.getType();
} catch (SmbAuthException authE) {
logger.warn("Caught SmbAuthException");
type = SmbFile.TYPE_SHARE;
} catch (SmbException smbE) {
type = SmbFile.TYPE_FILESYSTEM;
}
if (type == SmbFile.TYPE_SERVER)
logger.info("smbFile is a server");
else if (type == SmbFile.TYPE_FILESYSTEM)
logger.info("smbFile is a filesystem");
else if (type == SmbFile.TYPE_WORKGROUP)
logger.info("smbFile is a root or workgroup");
else if (type == SmbFile.TYPE_SHARE)
logger.info("smbFile is a share");
SmbFile[] smbFilesArray = null;
try {
String cur_name = smbFile.getName();
logger.info("Current smbFile name = " + smbFile.getName());
smbFilesArray = smbFile.listFiles();
} catch (SmbAuthException authE) {
logger.warn("Caught a SmbAuthException on listFiles", authE);
} catch (SmbException smbE) {
logger.warn("Caught a SmbException on listFiles", smbE);
}
if (smbFilesArray != null) {
for (SmbFile file : smbFilesArray) {
if (file.isFile() || file.isDirectory()) {
boolean exists = false;
String msg = " exists";
// TODO: check if file/dir/workgroup/other before
try {
exists = file.exists();
} catch (SmbAuthException authE) {
exists = true;
msg = " exists but cannot access with provided credentials";
} catch (SmbException smbE) {
exists = true;
msg = " exists but not accessible";
}
System.out.println(file.getPath() + (exists ? msg : " does not exist"));
}
}
} else {
logger.info("smbFilesArray is null");
}
}
}
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@courville courville commented Feb 12, 2019

Compile with javac -cp ./:./jcifs-ng-2.1.3-SNAPSHOT.jar:./slf4j-api-1.7.25.jar:./slf4j-log4j12-1.7.25.jar:./bcprov-jdk15on-1.61.jar:./log4j-1.2.17.jar smbcli.java
Run with javajava -cp ./:./jcifs-ng-2.1.3-SNAPSHOT.jar:./slf4j-api-1.7.25.jar:./bcprov-jdk15on-1.61.jar:./slf4j-log4j12-1.7.25.jar:./log4j-1.2.17.jar smbcli 2 smb://server/share/ domain user password
Guest login is with "" GUEST "" as domain user password.

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@courville courville commented Mar 17, 2019

To get trace log for jcifs-ng use the following log4j.properties file in the directory where smbcli is present:

# Root logger option
log4j.rootLogger=INFO, stderr

# Direct log messages to stdout
log4j.appender.stderr.ImmediateFlush=true
log4j.appender.stderr=org.apache.log4j.ConsoleAppender
log4j.appender.stderr.Target=System.err
log4j.appender.stderr.layout=org.apache.log4j.PatternLayout
log4j.appender.stderr.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

log4j.logger.jcifs: DEBUG
log4j.logger.smbcli: INFO
#log4j.logger.jcifs.internal.smb2.create: DEBUG
#log4j.logger.jcifs.smb.SmbTreeConnection: DEBUG
#log4j.logger.jcifs.smb.SmbTransportImpl: DEBUG
#log4j.logger.jcifs.util.transport.Transport: DEBUG
#log4j.logger.jcifs.smb.DfsImpl: DEBUG
#log4j.logger.jcifs.smb: DEBUG
#log4j.logger.jcifs.smb.SmbFileOutputStream: TRACE
#log4j.logger.jcifs.smb.SigningDigest: TRACE
log4j.logger.jcifs.smb.Kerb5Context: DEBUG
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@courville courville commented Mar 17, 2019

For pcap captures, use wireshark with the following filter ip.src == 192.168.0.101/24 && ip.dst == 192.168.0.1/24 (adapt to your subnet).
To export capture: edit mark all displayed, file export specified packets -> pcap, zip export.
Alternatively tcpdump can be used too with the following command: sudo tcpdump -n "src net 192.168.1.0/24 and dst net 192.168.1.0/24" -w capture.pcap

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@courville courville commented Mar 17, 2019

In order to compile jcifs-ng use maven: mvn package -DskipTests -Dmaven.javadoc.skip=true, resulting jar is located in target directory

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