/* Copyright (C) 2007-2014 Open Information Security Foundation
 *
 * You can copy, redistribute or modify this Program under the terms of
 * the GNU General Public License version 2 as published by the Free
 * Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

/**
 * \file
 *
 * \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
 * \author Victor Julien <victor@inliniac.net>
 *
 * App-layer parser for SSH protocol
 *
 */

#include "suricata-common.h"
#include "debug.h"
#include "decode.h"
#include "threads.h"

#include "util-print.h"
#include "util-pool.h"

#include "stream-tcp-private.h"
#include "stream-tcp-reassemble.h"
#include "stream-tcp.h"
#include "stream.h"

#include "app-layer-protos.h"
#include "app-layer-parser.h"
#include "app-layer-ssh.h"

#include "conf.h"

#include "util-spm.h"
#include "util-unittest.h"
#include "util-debug.h"
#include "flow-private.h"

#include "util-byte.h"
#include "util-memcmp.h"

/** \internal
 *  \brief Function to parse the SSH version string of the client
 *
 *  The input to this function is a byte buffer starting with SSH-
 *
 *  \param  ssh_state   Pointer the state in which the value to be stored
 *  \param  input       Pointer the received input data
 *  \param  input_len   Length in bytes of the received data
 *
 *  \retval len remaining length in input
 */
static int SSHParseBanner(SshState *state, SshHeader *header, const uint8_t *input, uint32_t input_len)
{
    const uint8_t *line_ptr = input;
    uint32_t line_len = input_len;

    /* is it the version line? */
    if (SCMemcmp("SSH-", line_ptr, 4) != 0) {
        SCReturnInt(-1);
    }

    const uint8_t *banner_end = BasicSearch(line_ptr, line_len, (uint8_t*)"\r", 1);
    if (banner_end == NULL) {
        banner_end = BasicSearch(line_ptr, line_len, (uint8_t*)"\n", 1);
        if (banner_end == NULL) {
            SCLogDebug("No EOL at the end of banner buffer");
            SCReturnInt(-1);
        }
    }

    if ((banner_end - line_ptr) > 255) {
        SCLogDebug("Invalid version string, it should be less than 255 "
                "characters including <CR><NL>, input value is %"PRIuMAX,
                (banner_end - line_ptr));
        SCReturnInt(-1);
    }

    /* don't search things behind the end of banner */
    line_len = banner_end - line_ptr;

    /* ok, we have found the version line/string, skip it and parse proto version */
    line_ptr += 4;
    line_len -= 4;

    uint8_t *proto_end = BasicSearch(line_ptr, line_len, (uint8_t*)"-", 1);
    if (proto_end == NULL) {
        /* Strings starting with SSH- are not allowed
         * if they are not the real version string */
        SCLogDebug("Info Version String for SSH (invalid usage of SSH- prefix)");
        SCReturnInt(-1);
    }
    uint64_t proto_ver_len = (uint64_t)(proto_end - line_ptr);
    header->proto_version = SCMalloc(proto_ver_len + 1);
    if (header->proto_version == NULL) {
        SCReturnInt(-1);
    }
    memcpy(header->proto_version, line_ptr, proto_ver_len);
    header->proto_version[proto_ver_len] = '\0';

    /* Now lets parse the software & version */
    line_ptr += proto_ver_len + 1;
    line_len -= proto_ver_len + 1;
    if (line_len < 1) {
        SCLogDebug("No software version specified (weird)");
        header->flags |= SSH_FLAG_VERSION_PARSED;
        /* Return the remaining length */
        SCReturnInt(0);
    }

    uint64_t sw_ver_len = (uint64_t)(banner_end - line_ptr);
    /* sanity check on this arithmetic */
    if ((sw_ver_len <= 1) || (sw_ver_len >= input_len)) {
        SCLogDebug("Should not have sw version length '%" PRIu64 "'", sw_ver_len);
        SCReturnInt(-1);
    }

    header->software_version = SCMalloc(sw_ver_len + 1);
    if (header->software_version == NULL) {
        SCReturnInt(-1);
    }
    memcpy(header->software_version, line_ptr, sw_ver_len);
    header->software_version[sw_ver_len] = '\0';
    if (header->software_version[sw_ver_len - 1] == 0x0d)
        header->software_version[sw_ver_len - 1] = '\0';

    header->flags |= SSH_FLAG_VERSION_PARSED;

    /* Return the remaining length */
    int len = input_len - (banner_end - input);
    SCReturnInt(len);
}

static int SSHParseRecordHeader(SshState *state, SshHeader *header,
        const uint8_t *input, uint32_t input_len)
{
#ifdef DEBUG
    BUG_ON(input_len != 6);
#else
    if (input_len < 6)
        SCReturnInt(-1);
#endif
    /* input and input_len now point past initial line */
    uint32_t pkt_len = 0;
    int r = ByteExtractUint32(&pkt_len, BYTE_BIG_ENDIAN,
            4, input);
    if (r != 4) {
        SCLogDebug("xtract 4 bytes failed %d", r);
        SCReturnInt(-1);
    }
    if (pkt_len < 2) {
        SCReturnInt(-1);
    }

    header->pkt_len = pkt_len;
    SCLogDebug("pkt len: %"PRIu32, pkt_len);

    input += 4;
    //input_len -= 4;

    header->padding_len = *input;

    input += 1;
    //input_len -= 1;

    SCLogDebug("padding: %u", header->padding_len);

    header->msg_code = *input;

    SCLogDebug("msg code: %u", header->msg_code);

    if (header->msg_code == SSH_MSG_NEWKEYS) {
        /* done */
        SCLogDebug("done");
        header->flags |= SSH_FLAG_PARSER_DONE;
    } else {
        /* not yet done */
        SCLogDebug("not done");
    }
    SCReturnInt(0);
}

/** \internal
 *  \brief Function to parse the SSH field in packet received from the client
 *
 *  Input to this function is a byte buffer starting with SSH- up to at least
 *  a \r or \n character.
 *
 *  \param  ssh_state   Pointer the state in which the value to be stored
 *  \param  input       Pointer the received input data
 *  \param  input_len   Length in bytes of the received data
 */
static int SSHParseRecord(SshState *state, SshHeader *header, uint8_t *input, uint32_t input_len)
{
    SCEnter();
    int ret = 0;

    if (header->flags & SSH_FLAG_PARSER_DONE) {
        SCReturnInt(0);
    }

    SCLogDebug("state %p, input %p,input_len %" PRIu32,
               state, input, input_len);
    //PrintRawDataFp(stdout, input, input_len);

    if (!(header->flags & SSH_FLAG_VERSION_PARSED)) {
        ret = SSHParseBanner(state, header, input, input_len);
        if (ret < 0) {
            SCLogDebug("Invalid version string");
            SCReturnInt(-1);
        } else if (header->flags & SSH_FLAG_VERSION_PARSED) {
            SCLogDebug("Version string parsed, remaining length %d", ret);
            input += input_len - ret;
            input_len -= (input_len - ret);

            uint32_t u = 0;
            while (u < input_len && (input[u] == '\r' || input[u] == '\n')) {
                u++;
            }
            SCLogDebug("skipping %u EOL bytes", u);
            input += u;
            input_len -= u;

            if (input_len == 0)
                SCReturnInt(0);

        } else {
            BUG_ON(1);// we only call this when we have enough data
            SCLogDebug("Version string not parsed yet");
            //pstate->parse_field = 0;
            SCReturnInt(0);
        }
    } else {
        SCLogDebug("Version string already parsed");
    }

    /* skip bytes from the current record if we have to */
    if (header->record_left > 0) {
        SCLogDebug("skipping bytes part of the current record");
        if (header->record_left > input_len) {
            header->record_left -= input_len;
            SCLogDebug("all input skipped, %u left in record", header->record_left);
            SCReturnInt(0);
        } else {
            input_len -= header->record_left;
            input += header->record_left;
            header->record_left = 0;

            if (input_len == 0) {
                SCLogDebug("all input skipped");
                SCReturnInt(0);
            }
        }
    }

again:
    /* input is too small, even when combined with stored bytes */
    if (header->buf_offset + input_len < 6) {
        memcpy(header->buf + header->buf_offset, input, input_len);
        header->buf_offset += input_len;
        SCReturnInt(0);

    /* we have enough bytes to parse 6 bytes, lets see if we have
     * previously stored some */
    } else if (header->buf_offset > 0) {
        uint8_t needed = 6 - header->buf_offset;

        SCLogDebug("parse stored");
        memcpy(header->buf + header->buf_offset, input, needed);
        header->buf_offset = 6;

        // parse the 6
        if (SSHParseRecordHeader(state, header, header->buf, 6) < 0)
            SCReturnInt(-1);
        header->buf_offset = 0;

        uint32_t record_left = header->pkt_len - 2;
        input_len -= needed;
        input += needed;

        if (record_left > input_len) {
            header->record_left = record_left - input_len;
        } else {
            input_len -= record_left;
            if (input_len == 0)
                SCReturnInt(0);

            input += record_left;

            SCLogDebug("we have %u left to parse", input_len);
            goto again;

        }

    /* nothing stored, lets parse this directly */
    } else {
        SCLogDebug("parse direct");
        //PrintRawDataFp(stdout, input, input_len);
        if (SSHParseRecordHeader(state, header, input, 6) < 0)
            SCReturnInt(-1);

        uint32_t record_left = header->pkt_len - 2;
        SCLogDebug("record left %u", record_left);
        input_len -= 6;
        input += 6;

        if (record_left > input_len) {
            header->record_left = record_left - input_len;
        } else {
            input_len -= record_left;
            if (input_len == 0)
                SCReturnInt(0);
            input += record_left;
            //PrintRawDataFp(stdout, input, input_len);

            SCLogDebug("we have %u left to parse", input_len);
            goto again;
        }
    }

    SCReturnInt(0);
}

static int EnoughData(uint8_t *input, uint32_t input_len)
{
    uint32_t u;
    for (u = 0; u < input_len; u++) {
        if (input[u] == '\r' || input[u] == '\n')
            return TRUE;
    }
    return FALSE;
}

#define MAX_BANNER_LEN 256

static int SSHParseData(SshState *state, SshHeader *header,
                        uint8_t *input, uint32_t input_len)
{
    /* we're looking for the banner */
    if (!(header->flags & SSH_FLAG_VERSION_PARSED))
    {
        int banner_eol = EnoughData(input, input_len);

        /* fast track normal case: no buffering */
        if (header->banner_buffer == NULL && banner_eol)
        {
            SCLogDebug("enough data, parse now");
            // parse now
            int r = SSHParseRecord(state, header, input, input_len);
            SCReturnInt(r);

        /* banner EOL with existing buffer present. Time for magic. */
        } else if (banner_eol) {
            SCLogDebug("banner EOL with existing buffer");

            uint32_t tocopy = MAX_BANNER_LEN - header->banner_len;
            if (tocopy > input_len)
                tocopy = input_len;

            SCLogDebug("tocopy %u input_len %u", tocopy, input_len);
            memcpy(header->banner_buffer + header->banner_len, input, tocopy);
            header->banner_len += tocopy;

            SCLogDebug("header->banner_len %u", header->banner_len);
            int r = SSHParseRecord(state, header,
                    header->banner_buffer, header->banner_len);
            if (r == 0) {
                input += tocopy;
                input_len -= tocopy;
                if (input_len > 0) {
                    SCLogDebug("handling remaining data %u", input_len);
                    r = SSHParseRecord(state, header, input, input_len);
                }
            }
            SCReturnInt(r);

        /* no banner EOL, so we need to buffer */
        } else if (!banner_eol) {
            if (header->banner_buffer == NULL) {
                header->banner_buffer = SCMalloc(MAX_BANNER_LEN);
                if (header->banner_buffer == NULL)
                    SCReturnInt(-1);
            }

            uint32_t tocopy = MAX_BANNER_LEN - header->banner_len;
            if (tocopy > input_len)
                tocopy = input_len;
            SCLogDebug("tocopy %u", tocopy);

            memcpy(header->banner_buffer + header->banner_len, input, tocopy);
            header->banner_len += tocopy;
            SCLogDebug("header->banner_len %u", header->banner_len);
        }

    /* we have a banner, the rest is just records */
    } else {
        int r = SSHParseRecord(state, header, input, input_len);
        SCReturnInt(r);
    }

    //PrintRawDataFp(stdout, input, input_len);
    return 0;
}

static int SSHParseRequest(Flow *f, void *state, AppLayerParserState *pstate,
                           uint8_t *input, uint32_t input_len,
                           void *local_data)
{
    SshState *ssh_state = (SshState *)state;
    SshHeader *ssh_header = &ssh_state->cli_hdr;

    if (input == NULL && AppLayerParserStateIssetFlag(pstate, APP_LAYER_PARSER_EOF)) {
        SCReturnInt(1);
    } else if (input == NULL || input_len == 0) {
        SCReturnInt(-1);
    }

    int r = SSHParseData(ssh_state, ssh_header, input, input_len);

    if (ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE &&
        ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE) {
        AppLayerParserStateSetFlag(pstate, APP_LAYER_PARSER_NO_INSPECTION);
        AppLayerParserStateSetFlag(pstate, APP_LAYER_PARSER_NO_REASSEMBLY);
    }

    SCReturnInt(r);
}

static int SSHParseResponse(Flow *f, void *state, AppLayerParserState *pstate,
                            uint8_t *input, uint32_t input_len,
                            void *local_data)
{
    SshState *ssh_state = (SshState *)state;
    SshHeader *ssh_header = &ssh_state->srv_hdr;

    if (input == NULL && AppLayerParserStateIssetFlag(pstate, APP_LAYER_PARSER_EOF)) {
        SCReturnInt(1);
    } else if (input == NULL || input_len == 0) {
        SCReturnInt(-1);
    }

    int r = SSHParseData(ssh_state, ssh_header, input, input_len);

    if (ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE &&
        ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE) {
        AppLayerParserStateSetFlag(pstate, APP_LAYER_PARSER_NO_INSPECTION);
        AppLayerParserStateSetFlag(pstate, APP_LAYER_PARSER_NO_REASSEMBLY);
    }

    SCReturnInt(r);
}

/** \brief Function to allocates the SSH state memory
 */
static void *SSHStateAlloc(void)
{
    void *s = SCMalloc(sizeof(SshState));
    if (unlikely(s == NULL))
        return NULL;

    memset(s, 0, sizeof(SshState));
    return s;
}

/** \brief Function to free the SSH state memory
 */
static void SSHStateFree(void *state)
{
    SshState *s = (SshState *)state;
    if (s->cli_hdr.proto_version != NULL)
        SCFree(s->cli_hdr.proto_version);
    if (s->cli_hdr.software_version != NULL)
        SCFree(s->cli_hdr.software_version);
    if (s->cli_hdr.banner_buffer != NULL)
        SCFree(s->cli_hdr.banner_buffer);

    if (s->srv_hdr.proto_version != NULL)
        SCFree(s->srv_hdr.proto_version);
    if (s->srv_hdr.software_version != NULL)
        SCFree(s->srv_hdr.software_version);
    if (s->srv_hdr.banner_buffer != NULL)
        SCFree(s->srv_hdr.banner_buffer);

    SCFree(s);
}

static int SSHRegisterPatternsForProtocolDetection(void)
{
    if (AppLayerProtoDetectPMRegisterPatternCI(IPPROTO_TCP, ALPROTO_SSH,
                                               "SSH-", 4, 0, STREAM_TOSERVER) < 0)
    {
        return -1;
    }
    if (AppLayerProtoDetectPMRegisterPatternCI(IPPROTO_TCP, ALPROTO_SSH,
                                               "SSH-", 4, 0, STREAM_TOCLIENT) < 0)
    {
        return -1;
    }
    return 0;
}

/** \brief Function to register the SSH protocol parsers and other functions
 */
void RegisterSSHParsers(void)
{
    char *proto_name = "ssh";

    if (AppLayerProtoDetectConfProtoDetectionEnabled("tcp", proto_name)) {
        AppLayerProtoDetectRegisterProtocol(ALPROTO_SSH, proto_name);
        if (SSHRegisterPatternsForProtocolDetection() < 0)
            return;
    }

    if (AppLayerParserConfParserEnabled("tcp", proto_name)) {
        AppLayerParserRegisterParser(IPPROTO_TCP, ALPROTO_SSH, STREAM_TOSERVER,
                                     SSHParseRequest);
        AppLayerParserRegisterParser(IPPROTO_TCP, ALPROTO_SSH, STREAM_TOCLIENT,
                                     SSHParseResponse);
        AppLayerParserRegisterStateFuncs(IPPROTO_TCP, ALPROTO_SSH, SSHStateAlloc, SSHStateFree);
        AppLayerParserRegisterParserAcceptableDataDirection(IPPROTO_TCP,
                ALPROTO_SSH, STREAM_TOSERVER|STREAM_TOCLIENT);
    } else {
//        SCLogInfo("Parsed disabled for %s protocol. Protocol detection"
//                  "still on.", proto_name);
    }

#ifdef UNITTESTS
    AppLayerParserRegisterProtocolUnittests(IPPROTO_TCP, ALPROTO_SSH, SSHParserRegisterTests);
#endif
}

/* UNITTESTS */
#ifdef UNITTESTS

/** \test Send a version string in one chunk (client version str). */
static int SSHParserTest01(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0-MySSHClient-0.5.1\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER|STREAM_EOF, sshbuf, sshlen);
    if (r != 0) {
        printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version string in one chunk but multiple lines and comments.
 *        (client version str)
 */
static int SSHParserTest02(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0-MySSHClient-0.5.1 some comments...\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER|STREAM_EOF, sshbuf, sshlen);
    if (r != 0) {
        printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a invalid version string in one chunk but multiple lines and comments.
 *        (client version str)
 */
static int SSHParserTest03(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0 some comments...\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER|STREAM_EOF, sshbuf, sshlen);
    if (r == 0) {
        printf("toclient chunk 1 returned %" PRId32 ", expected != 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED) {
        printf("Client version string parsed? It's not a valid string: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version != NULL) {
        goto end;
    }

    if (ssh_state->cli_hdr.software_version != NULL) {
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version string in one chunk (server version str). */
static int SSHParserTest04(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0-MySSHClient-0.5.1\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT|STREAM_EOF, sshbuf, sshlen);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;

end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version string in one chunk (server version str)
 */
static int SSHParserTest05(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0-MySSHClient-0.5.1 some comments...\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT|STREAM_EOF, sshbuf, sshlen);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a invalid version string in one chunk (server version str)
 */
static int SSHParserTest06(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0 some comments...\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT|STREAM_EOF, sshbuf, sshlen);
    if (r == 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected != 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    /* Ok, it returned an error. Let's make sure we didn't parse the string at all */

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED) {
        printf("Client version string parsed? It's not a valid string: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version != NULL) {
        goto end;
    }

    if (ssh_state->srv_hdr.software_version != NULL) {
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

static int SSHParserTest07(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { "0-MySSHClient-0.5.1\r\n"};
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;

end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version banner in three chunks. */
static int SSHParserTest08(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    uint8_t sshbuf3[] = { "0-MySSHClient-0.5.1\r\n"};
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

static int SSHParserTest09(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { "0-MySSHClient-0.5.1\r\n"};
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;

end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version banner in three chunks. */
static int SSHParserTest10(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    uint8_t sshbuf3[] = { "0-MySSHClient-0.5.1\r\n"};
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a banner and record in three chunks. */
static int SSHParserTest11(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 21, 0x00};
    uint32_t sshlen2 = sizeof(sshbuf2);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a banner and 2 records record in four chunks. */
static int SSHParserTest12(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { 0x00, 0x00, 0x00, 0x03,0x01, 17, 0x00};
    uint32_t sshlen2 = sizeof(sshbuf2);
    uint8_t sshbuf3[] = { 0x00, 0x00, 0x00, 0x03,0x01, 21, 0x00};
    uint32_t sshlen3 = sizeof(sshbuf3);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a banner and 2 records record in four chunks. */
static int SSHParserTest13(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { 0x00, 0x00, 0x00, 0x02, 0x01, 17};
    uint32_t sshlen2 = sizeof(sshbuf2);
    uint8_t sshbuf3[] = { 0x00, 0x00, 0x00, 0x02, 0x01, 21};
    uint32_t sshlen3 = sizeof(sshbuf3);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
    uint32_t u;

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    for (u = 0; u < sshlen2; u++) {
        SCMutexLock(&f.m);
        r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, &sshbuf2[u], 1);
        if (r != 0) {
            printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
            SCMutexUnlock(&f.m);
            goto end;
        }
        SCMutexUnlock(&f.m);
    }
    for (u = 0; u < sshlen3; u++) {
        SCMutexLock(&f.m);
        r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, &sshbuf3[u], 1);
        if (r != 0) {
            printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
            SCMutexUnlock(&f.m);
            goto end;
        }
        SCMutexUnlock(&f.m);
    }
    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a banner and 2 records record in four chunks. */
static int SSHParserTest14(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { 0x00, 0x00, 0x00, 0x10, 0x01, 17, 0x00};
    uint32_t sshlen2 = sizeof(sshbuf2);

    uint8_t sshbuf3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
    uint32_t sshlen3 = sizeof(sshbuf3);
    uint8_t sshbuf4[] = { 0x09, 0x10, 0x11, 0x12, 0x13, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4);

    /* first byte of this record in sshbuf4 */
    uint8_t sshbuf5[] = { 0x00, 0x00, 0x02, 0x01, 21};
    uint32_t sshlen5 = sizeof(sshbuf5);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf5, sshlen5);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a banner and 2 records record in four chunks. */
static int SSHParserTest15(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = { 0x00, 0x00, 0x00, 0x10, 0x01, 17, 0x00};
    uint32_t sshlen2 = sizeof(sshbuf2);

    uint8_t sshbuf3[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
    uint32_t sshlen3 = sizeof(sshbuf3);
    uint8_t sshbuf4[] = { 0x09, 0x10, 0x11, 0x12, 0x13, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4);

    /* first byte of this record in sshbuf4 */
    uint8_t sshbuf5[] = { 0x00, 0x00, 0x02, 0x01, 20, 0x00, 0x00, 0x00, 0x02, 0x01, 21};
    uint32_t sshlen5 = sizeof(sshbuf5);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf5, sshlen5);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->cli_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send toserver a banner and record in three chunks. */
static int SSHParserTest16(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    uint8_t sshbuf3[] = { 0x00, 0x00, 0x00, 0x03,0x01, 21, 0x00};
    uint32_t sshlen3 = sizeof(sshbuf3);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send toserver a banner and 2 records record in four chunks. */
static int SSHParserTest17(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;
    uint8_t sshbuf3[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 17, 0x00};
    uint32_t sshlen3 = sizeof(sshbuf3);
    uint8_t sshbuf4[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 21, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.software_version, "MySSHClient-0.5.1", strlen("MySSHClient-0.5.1")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test 2 directional test */
static int SSHParserTest18(void)
{
    int result = 0;
    Flow f;

    uint8_t server1[] = "SSH-2.0-OpenSSH_4.7p1 Debian-8ubuntu3\r\n";
    uint32_t serverlen1 = sizeof(server1) - 1;

    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-MySSHClient-0.5.1\r\n";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1;

    uint8_t server2[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 21, 0x00 };
    uint32_t serverlen2 = sizeof(server2) - 1;

    uint8_t sshbuf3[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 21, 0x00 };
    uint32_t sshlen3 = sizeof(sshbuf3);


    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, server1, serverlen1);
    if (r != 0) {
        printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, server2, serverlen2);
    if (r != 0) {
        printf("toclient chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    if (!(AppLayerParserStateIssetFlag(f.alparser, APP_LAYER_PARSER_NO_INSPECTION))) {
        printf("detection not disabled: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Really long banner handling: bannel exactly 255 */
static int SSHParserTest19(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1; // 8
    uint8_t sshbuf3[] = "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//60
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//112
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//164
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//216
                        "abcdefghijklmnopqrstuvwxyz"//242
                        "abcdefghijkl\r";//255
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;

    uint8_t sshbuf4[] = { 0x00, 0x00, 0x00, 0x03, 0x01, 21, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4);
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    char *name = SCMalloc(256);
    if (name == NULL)
        goto end;
    memset(name, 0x00, 256);
    strlcpy(name, (char *)sshbuf3, strlen((char *)sshbuf3) - 1);

    if (strncmp((char*)ssh_state->srv_hdr.software_version, name, strlen(name)) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Really long banner handling: banner exactly 255,
 *        followed by malformed record */
static int SSHParserTest20(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1; // 8
    uint8_t sshbuf3[] = "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//60
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//112
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//164
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//216
                        "abcdefghijklmnopqrstuvwxyz"//242
                        "abcdefghijklm\r";//256
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;
    uint8_t sshbuf4[] = {'a','b','c','d','e','f', '\r',
                         0x00, 0x00, 0x00, 0x06, 0x01, 21, 0x00, 0x00, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4) - 1;

    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCLogDebug("chunk 4:");
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ((ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("detected the msg code of new keys (ciphered data starts): ");
        goto end;
    }
    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Fragmented banner handling: chunk has final part of bannel plus
 *        a record. */
static int SSHParserTest21(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1; // 8
    uint8_t sshbuf3[] = "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//60
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//112
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//164
                        "abcdefghijklmnopqrstuvwxyz"
                        "abcdefghijklmnopqrstuvwxyz"//216
                        "abcdefghijklmnopqrstuvwxy";//241
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;
    uint8_t sshbuf4[] = {'l','i','b','s','s','h', '\r',
                         0x00, 0x00, 0x00, 0x06, 0x01, 21, 0x00, 0x00, 0x00};
    uint32_t sshlen4 = sizeof(sshbuf4) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCLogDebug("chunk 4:");
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Fragmented banner handling: chunk has final part of bannel plus
 *        a record. */
static int SSHParserTest22(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf1[] = "SSH-";
    uint32_t sshlen1 = sizeof(sshbuf1) - 1;
    uint8_t sshbuf2[] = "2.0-";
    uint32_t sshlen2 = sizeof(sshbuf2) - 1; // 8
    uint8_t sshbuf3[] = {
        'l', 'i', 'b', 's', 's', 'h', '\r', //7

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00, //50

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00, //100

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00, //150

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00, //200

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00, //250

        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 17, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x06, 0x01, 21, 0x00, 0x00, 0x00, 0x00, //300
    };
    uint32_t sshlen3 = sizeof(sshbuf3) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf1, sshlen1);
    if (r != 0) {
        printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf2, sshlen2);
    if (r != 0) {
        printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf3, sshlen3);
    if (r != 0) {
        printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
#if 0
    SCLogDebug("chunk 4:");
    SCMutexLock(&f.m);
    r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOCLIENT, sshbuf4, sshlen4);
    if (r != 0) {
        printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);
#endif
    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if (!(ssh_state->srv_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.software_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->srv_hdr.proto_version == NULL) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (strncmp((char*)ssh_state->srv_hdr.proto_version, "2.0", strlen("2.0")) != 0) {
        printf("Client version string not parsed correctly: ");
        goto end;
    }

    if ( !(ssh_state->srv_hdr.flags & SSH_FLAG_PARSER_DONE)) {
        printf("Didn't detect the msg code of new keys (ciphered data starts): ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version string in one chunk (client version str). */
static int SSHParserTest23(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0\r-MySSHClient-0.5.1\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER|STREAM_EOF, sshbuf, sshlen);
    if (r == 0) {
        printf("toclient chunk 1 returned 0 expected non null: ");
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}

/** \test Send a version string in one chunk (client version str). */
static int SSHParserTest24(void)
{
    int result = 0;
    Flow f;
    uint8_t sshbuf[] = "SSH-2.0-\rMySSHClient-0.5.1\n";
    uint32_t sshlen = sizeof(sshbuf) - 1;
    TcpSession ssn;
    AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();

    memset(&f, 0, sizeof(f));
    memset(&ssn, 0, sizeof(ssn));
    f.protoctx = (void *)&ssn;

    StreamTcpInitConfig(TRUE);

    SCMutexLock(&f.m);
    int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER|STREAM_EOF, sshbuf, sshlen);
    if (r != 0) {
        printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
        SCMutexUnlock(&f.m);
        goto end;
    }
    SCMutexUnlock(&f.m);

    SshState *ssh_state = f.alstate;
    if (ssh_state == NULL) {
        printf("no ssh state: ");
        goto end;
    }

    if ( !(ssh_state->cli_hdr.flags & SSH_FLAG_VERSION_PARSED)) {
        printf("Client version string not parsed: ");
        goto end;
    }

    if (ssh_state->cli_hdr.software_version) {
        printf("Client version string should not be parsed: ");
        goto end;
    }

    result = 1;
end:
    if (alp_tctx != NULL)
        AppLayerParserThreadCtxFree(alp_tctx);
    StreamTcpFreeConfig(TRUE);
    return result;
}


#endif /* UNITTESTS */

void SSHParserRegisterTests(void)
{
#ifdef UNITTESTS
    UtRegisterTest("SSHParserTest01 - ToServer", SSHParserTest01, 1);
    UtRegisterTest("SSHParserTest02 - ToServer", SSHParserTest02, 1);
    UtRegisterTest("SSHParserTest03 - ToServer", SSHParserTest03, 1);
    UtRegisterTest("SSHParserTest04 - ToClient", SSHParserTest04, 1);
    UtRegisterTest("SSHParserTest05 - ToClient", SSHParserTest05, 1);
    UtRegisterTest("SSHParserTest06 - ToClient", SSHParserTest06, 1);
    UtRegisterTest("SSHParserTest07 - ToServer 2 chunks", SSHParserTest07, 1);
    UtRegisterTest("SSHParserTest08 - ToServer 3 chunks", SSHParserTest08, 1);
    UtRegisterTest("SSHParserTest09 - ToClient 2 chunks", SSHParserTest09, 1);
    UtRegisterTest("SSHParserTest10 - ToClient 3 chunks", SSHParserTest10, 1);
    UtRegisterTest("SSHParserTest11 - ToClient 4 chunks", SSHParserTest11, 1);
    UtRegisterTest("SSHParserTest12 - ToClient 4 chunks", SSHParserTest12, 1);
    UtRegisterTest("SSHParserTest13 - ToClient 4 chunks", SSHParserTest13, 1);
    UtRegisterTest("SSHParserTest14 - ToClient 4 chunks", SSHParserTest14, 1);
    UtRegisterTest("SSHParserTest15", SSHParserTest15, 1);
    UtRegisterTest("SSHParserTest16", SSHParserTest16, 1);
    UtRegisterTest("SSHParserTest17", SSHParserTest17, 1);
    UtRegisterTest("SSHParserTest18", SSHParserTest18, 1);
    UtRegisterTest("SSHParserTest19", SSHParserTest19, 1);
    UtRegisterTest("SSHParserTest20", SSHParserTest20, 1);
    UtRegisterTest("SSHParserTest21", SSHParserTest21, 1);
    UtRegisterTest("SSHParserTest22", SSHParserTest22, 1);
    UtRegisterTest("SSHParserTest23", SSHParserTest23, 1);
    UtRegisterTest("SSHParserTest24", SSHParserTest24, 1);
#endif /* UNITTESTS */
}