Examples with BerLength org.openmuc.jasn1.ber.BerLength used on opensource projects

Example 11 with BerLength

use of org.openmuc.jasn1.ber.BerLength in project jasn1 by openmuc.

the class BerEmbeddedPdv method decode.

public int decode(InputStream is, boolean withTag) throws IOException {
    int codeLength = 0;
    int subCodeLength = 0;
    BerTag berTag = new BerTag();
    if (withTag) {
        codeLength += tag.decodeAndCheck(is);
    }
    BerLength length = new BerLength();
    codeLength += length.decode(is);
    int totalLength = length.val;
    codeLength += totalLength;
    subCodeLength += berTag.decode(is);
    if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 0)) {
        subCodeLength += length.decode(is);
        identification = new Identification();
        subCodeLength += identification.decode(is, null);
        subCodeLength += berTag.decode(is);
    } else {
        throw new IOException("Tag does not match the mandatory sequence element tag.");
    }
    if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 1)) {
        dataValueDescriptor = new BerObjectDescriptor();
        subCodeLength += dataValueDescriptor.decode(is, false);
        subCodeLength += berTag.decode(is);
    }
    if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 2)) {
        dataValue = new BerOctetString();
        subCodeLength += dataValue.decode(is, false);
        if (subCodeLength == totalLength) {
            return codeLength;
        }
    }
    throw new IOException("Unexpected end of sequence, length tag: " + totalLength + ", actual sequence length: " + subCodeLength);
}

Example 12 with BerLength

use of org.openmuc.jasn1.ber.BerLength in project jasn1 by openmuc.

the class BerNull method decode.

public int decode(InputStream is, boolean withTag) throws IOException {
    int codeLength = 0;
    if (withTag) {
        codeLength += tag.decodeAndCheck(is);
    }
    BerLength length = new BerLength();
    codeLength += length.decode(is);
    if (length.val != 0) {
        throw new IOException("Decoded length of BerNull is not correct");
    }
    return codeLength;
}

Example 13 with BerLength

use of org.openmuc.jasn1.ber.BerLength in project jasn1 by openmuc.

the class BerObjectIdentifier method decode.

public int decode(InputStream is, boolean withTag) throws IOException {
    int codeLength = 0;
    if (withTag) {
        codeLength += tag.decodeAndCheck(is);
    }
    BerLength length = new BerLength();
    codeLength += length.decode(is);
    if (length.val == 0) {
        value = new int[0];
        return codeLength;
    }
    byte[] byteCode = new byte[length.val];
    Util.readFully(is, byteCode);
    codeLength += length.val;
    List<Integer> objectIdentifierComponentsList = new ArrayList<>();
    int subIDEndIndex = 0;
    while ((byteCode[subIDEndIndex] & 0x80) == 0x80) {
        if (subIDEndIndex >= (length.val - 1)) {
            throw new IOException("Invalid Object Identifier");
        }
        subIDEndIndex++;
    }
    int subidentifier = 0;
    for (int i = 0; i <= subIDEndIndex; i++) {
        subidentifier |= ((byteCode[i] & 0x7f) << ((subIDEndIndex - i) * 7));
    }
    if (subidentifier < 40) {
        objectIdentifierComponentsList.add(0);
        objectIdentifierComponentsList.add(subidentifier);
    } else if (subidentifier < 80) {
        objectIdentifierComponentsList.add(1);
        objectIdentifierComponentsList.add(subidentifier - 40);
    } else {
        objectIdentifierComponentsList.add(2);
        objectIdentifierComponentsList.add(subidentifier - 80);
    }
    subIDEndIndex++;
    while (subIDEndIndex < length.val) {
        int subIDStartIndex = subIDEndIndex;
        while ((byteCode[subIDEndIndex] & 0x80) == 0x80) {
            if (subIDEndIndex == (length.val - 1)) {
                throw new IOException("Invalid Object Identifier");
            }
            subIDEndIndex++;
        }
        subidentifier = 0;
        for (int j = subIDStartIndex; j <= subIDEndIndex; j++) {
            subidentifier |= ((byteCode[j] & 0x7f) << ((subIDEndIndex - j) * 7));
        }
        objectIdentifierComponentsList.add(subidentifier);
        subIDEndIndex++;
    }
    value = new int[objectIdentifierComponentsList.size()];
    for (int i = 0; i < objectIdentifierComponentsList.size(); i++) {
        value[i] = objectIdentifierComponentsList.get(i);
    }
    return codeLength;
}

Example 14 with BerLength

use of org.openmuc.jasn1.ber.BerLength in project jasn1 by openmuc.

the class BerOctetString method decode.

public int decode(InputStream is, boolean withTag) throws IOException {
    int codeLength = 0;
    if (withTag) {
        codeLength += tag.decodeAndCheck(is);
    }
    BerLength length = new BerLength();
    codeLength += length.decode(is);
    value = new byte[length.val];
    if (length.val != 0) {
        Util.readFully(is, value);
        codeLength += length.val;
    }
    return codeLength;
}

Example 15 with BerLength

use of org.openmuc.jasn1.ber.BerLength in project jasn1 by openmuc.

the class OtherSignedNotification method decode.

public int decode(InputStream is, boolean withTag) throws IOException {
    int codeLength = 0;
    int subCodeLength = 0;
    BerTag berTag = new BerTag();
    if (withTag) {
        codeLength += tag.decodeAndCheck(is);
    }
    BerLength length = new BerLength();
    codeLength += length.decode(is);
    int totalLength = length.val;
    if (totalLength == -1) {
        subCodeLength += berTag.decode(is);
        if (berTag.tagNumber == 0 && berTag.tagClass == 0 && berTag.primitive == 0) {
            int nextByte = is.read();
            if (nextByte != 0) {
                if (nextByte == -1) {
                    throw new EOFException("Unexpected end of input stream.");
                }
                throw new IOException("Decoded sequence has wrong end of contents octets");
            }
            codeLength += subCodeLength + 1;
            return codeLength;
        }
        if (berTag.equals(NotificationMetadata.tag)) {
            tbsOtherNotification = new NotificationMetadata();
            subCodeLength += tbsOtherNotification.decode(is, false);
            subCodeLength += berTag.decode(is);
        }
        if (berTag.tagNumber == 0 && berTag.tagClass == 0 && berTag.primitive == 0) {
            int nextByte = is.read();
            if (nextByte != 0) {
                if (nextByte == -1) {
                    throw new EOFException("Unexpected end of input stream.");
                }
                throw new IOException("Decoded sequence has wrong end of contents octets");
            }
            codeLength += subCodeLength + 1;
            return codeLength;
        }
        if (berTag.equals(BerTag.APPLICATION_CLASS, BerTag.PRIMITIVE, 55)) {
            euiccNotificationSignature = new BerOctetString();
            subCodeLength += euiccNotificationSignature.decode(is, false);
            subCodeLength += berTag.decode(is);
        }
        if (berTag.tagNumber == 0 && berTag.tagClass == 0 && berTag.primitive == 0) {
            int nextByte = is.read();
            if (nextByte != 0) {
                if (nextByte == -1) {
                    throw new EOFException("Unexpected end of input stream.");
                }
                throw new IOException("Decoded sequence has wrong end of contents octets");
            }
            codeLength += subCodeLength + 1;
            return codeLength;
        }
        if (berTag.equals(Certificate.tag)) {
            euiccCertificate = new Certificate();
            subCodeLength += euiccCertificate.decode(is, false);
            subCodeLength += berTag.decode(is);
        }
        if (berTag.tagNumber == 0 && berTag.tagClass == 0 && berTag.primitive == 0) {
            int nextByte = is.read();
            if (nextByte != 0) {
                if (nextByte == -1) {
                    throw new EOFException("Unexpected end of input stream.");
                }
                throw new IOException("Decoded sequence has wrong end of contents octets");
            }
            codeLength += subCodeLength + 1;
            return codeLength;
        }
        if (berTag.equals(Certificate.tag)) {
            eumCertificate = new Certificate();
            subCodeLength += eumCertificate.decode(is, false);
            subCodeLength += berTag.decode(is);
        }
        int nextByte = is.read();
        if (berTag.tagNumber != 0 || berTag.tagClass != 0 || berTag.primitive != 0 || nextByte != 0) {
            if (nextByte == -1) {
                throw new EOFException("Unexpected end of input stream.");
            }
            throw new IOException("Decoded sequence has wrong end of contents octets");
        }
        codeLength += subCodeLength + 1;
        return codeLength;
    }
    codeLength += totalLength;
    subCodeLength += berTag.decode(is);
    if (berTag.equals(NotificationMetadata.tag)) {
        tbsOtherNotification = new NotificationMetadata();
        subCodeLength += tbsOtherNotification.decode(is, false);
        subCodeLength += berTag.decode(is);
    } else {
        throw new IOException("Tag does not match the mandatory sequence element tag.");
    }
    if (berTag.equals(BerTag.APPLICATION_CLASS, BerTag.PRIMITIVE, 55)) {
        euiccNotificationSignature = new BerOctetString();
        subCodeLength += euiccNotificationSignature.decode(is, false);
        subCodeLength += berTag.decode(is);
    } else {
        throw new IOException("Tag does not match the mandatory sequence element tag.");
    }
    if (berTag.equals(Certificate.tag)) {
        euiccCertificate = new Certificate();
        subCodeLength += euiccCertificate.decode(is, false);
        subCodeLength += berTag.decode(is);
    } else {
        throw new IOException("Tag does not match the mandatory sequence element tag.");
    }
    if (berTag.equals(Certificate.tag)) {
        eumCertificate = new Certificate();
        subCodeLength += eumCertificate.decode(is, false);
        if (subCodeLength == totalLength) {
            return codeLength;
        }
    }
    throw new IOException("Unexpected end of sequence, length tag: " + totalLength + ", actual sequence length: " + subCodeLength);
}