runmode-unix-socket.c

Go to the documentation of this file.

/* Copyright (C) 2012 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.
 */
 
#include "suricata-common.h"
#include "tm-threads.h"
#include "conf.h"
#include "runmodes.h"
#include "runmode-pcap-file.h"
#include "output.h"
#include "output-json.h"
 
#include "util-debug.h"
#include "util-time.h"
#include "util-cpu.h"
#include "util-affinity.h"
#include "util-var-name.h"
#include "unix-manager.h"
 
#include "detect-engine.h"
 
#include "flow-manager.h"
#include "flow-timeout.h"
#include "stream-tcp.h"
#include "stream-tcp-reassemble.h"
#include "source-pcap-file-directory-helper.h"
#include "host.h"
#include "defrag.h"
#include "defrag-hash.h"
#include "ippair.h"
#include "app-layer.h"
#include "app-layer-htp-mem.h"
#include "host-bit.h"
 
#include "util-misc.h"
#include "util-profiling.h"
 
#include "conf-yaml-loader.h"
 
#include "datasets.h"
#include "runmode-unix-socket.h"
 
int unix_socket_mode_is_running = 0;
 
typedef struct PcapFiles_ {
    char *filename;
    char *output_dir;
    int tenant_id;
    time_t delay;
    time_t poll_interval;
    bool continuous;
    bool should_delete;
    TAILQ_ENTRY(PcapFiles_) next;
} PcapFiles;
 
typedef struct PcapCommand_ {
    TAILQ_HEAD(, PcapFiles_) files;
    int running;
    PcapFiles *current_file;
} PcapCommand;
 
typedef struct MemcapCommand_ {
    const char *name;
    int (*SetFunc)(uint64_t);
    uint64_t (*GetFunc)(void);
    uint64_t (*GetMemuseFunc)(void);
} MemcapCommand;
 
const char *RunModeUnixSocketGetDefaultMode(void)
{
    return "autofp";
}
 
#define MEMCAPS_MAX 7
static MemcapCommand memcaps[MEMCAPS_MAX] = {
    {
        "stream",
        StreamTcpSetMemcap,
        StreamTcpGetMemcap,
        StreamTcpMemuseCounter,
    },
    {
        "stream-reassembly",
        StreamTcpReassembleSetMemcap,
        StreamTcpReassembleGetMemcap,
        StreamTcpReassembleMemuseGlobalCounter
    },
    {
        "flow",
        FlowSetMemcap,
        FlowGetMemcap,
        FlowGetMemuse
    },
    {
        "applayer-proto-http",
        HTPSetMemcap,
        HTPGetMemcap,
        HTPMemuseGlobalCounter
    },
    {
        "defrag",
        DefragTrackerSetMemcap,
        DefragTrackerGetMemcap,
        DefragTrackerGetMemuse
    },
    {
        "ippair",
        IPPairSetMemcap,
        IPPairGetMemcap,
        IPPairGetMemuse
    },
    {
        "host",
        HostSetMemcap,
        HostGetMemcap,
        HostGetMemuse
    },
};
 
float MemcapsGetPressure(void)
{
    float percent = 0.0;
    for (int i = 0; i < 4; i++) { // only flow, streams, http
        uint64_t memcap = memcaps[i].GetFunc();
        if (memcap) {
            uint64_t memuse = memcaps[i].GetMemuseFunc();
            float p = (float)((double)memuse / (double)memcap);
            // SCLogNotice("%s: memuse %"PRIu64", memcap %"PRIu64" => %f%%",
            //    memcaps[i].name, memuse, memcap, (p * 100));
            percent = MAX(p, percent);
        }
    }
    return percent;
}
 
#ifdef BUILD_UNIX_SOCKET
 
static int RunModeUnixSocketMaster(void);
static int unix_manager_pcap_task_running = 0;
static int unix_manager_pcap_task_failed = 0;
static int unix_manager_pcap_task_interrupted = 0;
static struct timespec unix_manager_pcap_last_processed;
static SCCtrlMutex unix_manager_pcap_last_processed_mutex;
 
/**
 * \brief return list of files in the queue
 *
 * \retval 0 in case of error, 1 in case of success
 */
static TmEcode UnixSocketPcapFilesList(json_t *cmd, json_t* answer, void *data)
{
    PcapCommand *this = (PcapCommand *) data;
    int i = 0;
    PcapFiles *file;
    json_t *jdata;
    json_t *jarray;
 
    jdata = json_object();
    if (jdata == NULL) {
        json_object_set_new(answer, "message",
                            json_string("internal error at json object creation"));
        return TM_ECODE_FAILED;
    }
    jarray = json_array();
    if (jarray == NULL) {
        json_decref(jdata);
        json_object_set_new(answer, "message",
                            json_string("internal error at json object creation"));
        return TM_ECODE_FAILED;
    }
    TAILQ_FOREACH(file, &this->files, next) {
        json_array_append_new(jarray, SCJsonString(file->filename));
        i++;
    }
    json_object_set_new(jdata, "count", json_integer(i));
    json_object_set_new(jdata, "files", jarray);
    json_object_set_new(answer, "message", jdata);
    return TM_ECODE_OK;
}
 
static TmEcode UnixSocketPcapFilesNumber(json_t *cmd, json_t* answer, void *data)
{
    PcapCommand *this = (PcapCommand *) data;
    int i = 0;
    PcapFiles *file;
 
    TAILQ_FOREACH(file, &this->files, next) {
        i++;
    }
    json_object_set_new(answer, "message", json_integer(i));
    return TM_ECODE_OK;
}
 
static TmEcode UnixSocketPcapCurrent(json_t *cmd, json_t* answer, void *data)
{
    PcapCommand *this = (PcapCommand *) data;
 
    if (this->current_file != NULL && this->current_file->filename != NULL) {
        json_object_set_new(answer, "message",
                            json_string(this->current_file->filename));
    } else {
        json_object_set_new(answer, "message", json_string("None"));
    }
    return TM_ECODE_OK;
}
 
static TmEcode UnixSocketPcapLastProcessed(json_t *cmd, json_t *answer, void *data)
{
    json_int_t epoch_millis;
    SCCtrlMutexLock(&unix_manager_pcap_last_processed_mutex);
    epoch_millis = SCTimespecAsEpochMillis(&unix_manager_pcap_last_processed);
    SCCtrlMutexUnlock(&unix_manager_pcap_last_processed_mutex);
 
    json_object_set_new(answer, "message",
                        json_integer(epoch_millis));
 
    return TM_ECODE_OK;
}
 
static TmEcode UnixSocketPcapInterrupt(json_t *cmd, json_t *answer, void *data)
{
    unix_manager_pcap_task_interrupted = 1;
 
    json_object_set_new(answer, "message", json_string("Interrupted"));
 
    return TM_ECODE_OK;
}
 
static void PcapFilesFree(PcapFiles *cfile)
{
    if (cfile == NULL)
        return;
    if (cfile->filename)
        SCFree(cfile->filename);
    if (cfile->output_dir)
        SCFree(cfile->output_dir);
    SCFree(cfile);
}
 
/**
 * \brief Add file to file queue
 *
 * \param this a UnixCommand:: structure
 * \param filename absolute filename
 * \param output_dir absolute name of directory where log will be put
 * \param tenant_id Id of tenant associated with this file
 * \param continuous If file should be run in continuous mode
 * \param delete If file should be deleted when done
 * \param delay Delay required for file modified time before being processed
 * \param poll_interval How frequently directory mode polls for new files
 *
 * \retval 0 in case of error, 1 in case of success
 */
static TmEcode UnixListAddFile(
    PcapCommand *this,
    const char *filename,
    const char *output_dir,
    int tenant_id,
    bool continuous,
    bool should_delete,
    time_t delay,
    time_t poll_interval
)
{
    PcapFiles *cfile = NULL;
    if (filename == NULL || this == NULL)
        return TM_ECODE_FAILED;
    cfile = SCMalloc(sizeof(PcapFiles));
    if (unlikely(cfile == NULL)) {
        SCLogError(SC_ERR_MEM_ALLOC, "Unable to allocate new file");
        return TM_ECODE_FAILED;
    }
    memset(cfile, 0, sizeof(PcapFiles));
 
    cfile->filename = SCStrdup(filename);
    if (unlikely(cfile->filename == NULL)) {
        SCFree(cfile);
        SCLogError(SC_ERR_MEM_ALLOC, "Unable to dup filename");
        return TM_ECODE_FAILED;
    }
 
    if (output_dir) {
        cfile->output_dir = SCStrdup(output_dir);
        if (unlikely(cfile->output_dir == NULL)) {
            SCFree(cfile->filename);
            SCFree(cfile);
            SCLogError(SC_ERR_MEM_ALLOC, "Unable to dup output_dir");
            return TM_ECODE_FAILED;
        }
    }
 
    cfile->tenant_id = tenant_id;
    cfile->continuous = continuous;
    cfile->should_delete = should_delete;
    cfile->delay = delay;
    cfile->poll_interval = poll_interval;
 
    TAILQ_INSERT_TAIL(&this->files, cfile, next);
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to add a file to treatment list
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 * \param continuous If this should run in continuous mode
 */
static TmEcode UnixSocketAddPcapFileImpl(json_t *cmd, json_t* answer, void *data,
                                         bool continuous)
{
    PcapCommand *this = (PcapCommand *) data;
    const char *filename;
    const char *output_dir;
    int tenant_id = 0;
    bool should_delete = false;
    time_t delay = 30;
    time_t poll_interval = 5;
#ifdef OS_WIN32
    struct _stat st;
#else
    struct stat st;
#endif /* OS_WIN32 */
 
    json_t *jarg = json_object_get(cmd, "filename");
    if (!json_is_string(jarg)) {
        SCLogError(SC_ERR_INVALID_ARGUMENT, "filename is not a string");
        json_object_set_new(answer, "message",
                            json_string("filename is not a string"));
        return TM_ECODE_FAILED;
    }
    filename = json_string_value(jarg);
#ifdef OS_WIN32
    if (_stat(filename, &st) != 0) {
#else
    if (stat(filename, &st) != 0) {
#endif /* OS_WIN32 */
        json_object_set_new(answer, "message",
                            json_string("filename does not exist"));
        return TM_ECODE_FAILED;
    }
 
    json_t *oarg = json_object_get(cmd, "output-dir");
    if (oarg != NULL) {
        if (!json_is_string(oarg)) {
            SCLogError(SC_ERR_INVALID_ARGUMENT, "output-dir is not a string");
 
            json_object_set_new(answer, "message",
                                json_string("output-dir is not a string"));
            return TM_ECODE_FAILED;
        }
        output_dir = json_string_value(oarg);
    } else {
        SCLogError(SC_ERR_INVALID_ARGUMENT, "can't get output-dir");
 
        json_object_set_new(answer, "message",
                            json_string("output-dir param is mandatory"));
        return TM_ECODE_FAILED;
    }
 
#ifdef OS_WIN32
    if (_stat(output_dir, &st) != 0) {
#else
    if (stat(output_dir, &st) != 0) {
#endif /* OS_WIN32 */
        json_object_set_new(answer, "message",
                            json_string("output-dir does not exist"));
        return TM_ECODE_FAILED;
    }
 
    json_t *targ = json_object_get(cmd, "tenant");
    if (targ != NULL) {
        if (!json_is_integer(targ)) {
            json_object_set_new(answer, "message",
                                json_string("tenant is not a number"));
            return TM_ECODE_FAILED;
        }
        tenant_id = json_number_value(targ);
    }
 
    json_t *delete_arg = json_object_get(cmd, "delete-when-done");
    if (delete_arg != NULL) {
        should_delete = json_is_true(delete_arg);
    }
 
    json_t *delay_arg = json_object_get(cmd, "delay");
    if (delay_arg != NULL) {
        if (!json_is_integer(delay_arg)) {
            SCLogError(SC_ERR_INVALID_ARGUMENT, "delay is not a integer");
            json_object_set_new(answer, "message",
                                json_string("delay is not a integer"));
            return TM_ECODE_FAILED;
        }
        delay = json_integer_value(delay_arg);
    }
 
    json_t *interval_arg = json_object_get(cmd, "poll-interval");
    if (interval_arg != NULL) {
        if (!json_is_integer(interval_arg)) {
            SCLogError(SC_ERR_INVALID_ARGUMENT, "poll-interval is not a integer");
 
            json_object_set_new(answer, "message",
                                json_string("poll-interval is not a integer"));
            return TM_ECODE_FAILED;
        }
        poll_interval = json_integer_value(interval_arg);
    }
 
    switch (UnixListAddFile(this, filename, output_dir, tenant_id, continuous,
                           should_delete, delay, poll_interval)) {
        case TM_ECODE_FAILED:
        case TM_ECODE_DONE:
            json_object_set_new(answer, "message",
                                json_string("Unable to add file to list"));
            return TM_ECODE_FAILED;
        case TM_ECODE_OK:
            SCLogInfo("Added file '%s' to list", filename);
            json_object_set_new(answer, "message",
                                json_string("Successfully added file to list"));
            return TM_ECODE_OK;
    }
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to add a file to treatment list
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
static TmEcode UnixSocketAddPcapFile(json_t *cmd, json_t* answer, void *data)
{
    bool continuous = false;
 
    json_t *cont_arg = json_object_get(cmd, "continuous");
    if (cont_arg != NULL) {
        continuous = json_is_true(cont_arg);
    }
 
    return UnixSocketAddPcapFileImpl(cmd, answer, data, continuous);
}
 
/**
 * \brief Command to add a file to treatment list, forcing continuous mode
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
static TmEcode UnixSocketAddPcapFileContinuous(json_t *cmd, json_t* answer, void *data)
{
    return UnixSocketAddPcapFileImpl(cmd, answer, data, true);
}
 
/**
 * \brief Handle the file queue
 *
 * This function check if there is currently a file
 * being parse. If it is not the case, it will start to
 * work on a new file. This implies to start a new 'pcap-file'
 * running mode after having set the file and the output dir.
 * This function also handles the cleaning of the previous
 * running mode.
 *
 * \param this a UnixCommand:: structure
 * \retval 0 in case of error, 1 in case of success
 */
static TmEcode UnixSocketPcapFilesCheck(void *data)
{
    PcapCommand *this = (PcapCommand *) data;
    if (unix_manager_pcap_task_running == 1) {
        return TM_ECODE_OK;
    }
    if ((unix_manager_pcap_task_failed == 1) || (this->running == 1)) {
        if (unix_manager_pcap_task_failed) {
            SCLogInfo("Preceeding task failed, cleaning the running mode");
        }
        unix_manager_pcap_task_failed = 0;
        this->running = 0;
 
        SCLogInfo("Resetting engine state");
        PostRunDeinit(RUNMODE_PCAP_FILE, NULL /* no ts */);
 
        if (this->current_file) {
            PcapFilesFree(this->current_file);
        }
        this->current_file = NULL;
    }
 
    if (TAILQ_EMPTY(&this->files)) {
        // nothing to do
        return TM_ECODE_OK;
    }
 
    PcapFiles *cfile = TAILQ_FIRST(&this->files);
    TAILQ_REMOVE(&this->files, cfile, next);
 
    unix_manager_pcap_task_running = 1;
    this->running = 1;
 
    if (ConfSetFinal("pcap-file.file", cfile->filename) != 1) {
        SCLogError(SC_ERR_INVALID_ARGUMENT, "Can not set working file to '%s'",
                   cfile->filename);
        PcapFilesFree(cfile);
        return TM_ECODE_FAILED;
    }
 
    int set_res = 0;
    if (cfile->continuous) {
        set_res = ConfSetFinal("pcap-file.continuous", "true");
    } else {
        set_res = ConfSetFinal("pcap-file.continuous", "false");
    }
    if (set_res != 1) {
        SCLogError(SC_ERR_INVALID_ARGUMENT, "Can not set continuous mode for pcap processing");
        PcapFilesFree(cfile);
        return TM_ECODE_FAILED;
    }
    if (cfile->should_delete) {
        set_res = ConfSetFinal("pcap-file.delete-when-done", "true");
    } else {
        set_res = ConfSetFinal("pcap-file.delete-when-done", "false");
    }
    if (set_res != 1) {
        SCLogError(SC_ERR_INVALID_ARGUMENT, "Can not set delete mode for pcap processing");
        PcapFilesFree(cfile);
        return TM_ECODE_FAILED;
    }
 
    if (cfile->delay > 0) {
        char tstr[32];
        snprintf(tstr, sizeof(tstr), "%" PRIuMAX, (uintmax_t)cfile->delay);
        if (ConfSetFinal("pcap-file.delay", tstr) != 1) {
            SCLogError(SC_ERR_INVALID_ARGUMENT, "Can not set delay to '%s'", tstr);
            PcapFilesFree(cfile);
            return TM_ECODE_FAILED;
        }
    }
 
    if (cfile->poll_interval > 0) {
        char tstr[32];
        snprintf(tstr, sizeof(tstr), "%" PRIuMAX, (uintmax_t)cfile->poll_interval);
        if (ConfSetFinal("pcap-file.poll-interval", tstr) != 1) {
            SCLogError(SC_ERR_INVALID_ARGUMENT,
                       "Can not set poll-interval to '%s'", tstr);
            PcapFilesFree(cfile);
            return TM_ECODE_FAILED;
        }
    }
 
    if (cfile->tenant_id > 0) {
        char tstr[16];
        snprintf(tstr, sizeof(tstr), "%d", cfile->tenant_id);
        if (ConfSetFinal("pcap-file.tenant-id", tstr) != 1) {
            SCLogError(SC_ERR_INVALID_ARGUMENT,
                       "Can not set working tenant-id to '%s'", tstr);
            PcapFilesFree(cfile);
            return TM_ECODE_FAILED;
        }
    } else {
        SCLogInfo("pcap-file.tenant-id not set");
    }
 
    if (cfile->output_dir) {
        if (ConfSetFinal("default-log-dir", cfile->output_dir) != 1) {
            SCLogError(SC_ERR_INVALID_ARGUMENT,
                       "Can not set output dir to '%s'", cfile->output_dir);
            PcapFilesFree(cfile);
            return TM_ECODE_FAILED;
        }
    }
 
    this->current_file = cfile;
 
    SCLogInfo("Starting run for '%s'", this->current_file->filename);
 
    PreRunInit(RUNMODE_PCAP_FILE);
    PreRunPostPrivsDropInit(RUNMODE_PCAP_FILE);
    RunModeDispatch(RUNMODE_PCAP_FILE, NULL, NULL, NULL);
 
    /* Un-pause all the paused threads */
    TmThreadWaitOnThreadInit();
    PacketPoolPostRunmodes();
    TmThreadContinueThreads();
 
    return TM_ECODE_OK;
}
#endif
 
void RunModeUnixSocketRegister(void)
{
#ifdef BUILD_UNIX_SOCKET
    /* a bit of a hack, but register twice to --list-runmodes shows both */
    RunModeRegisterNewRunMode(RUNMODE_UNIX_SOCKET, "single",
                              "Unix socket mode",
                              RunModeUnixSocketMaster);
    RunModeRegisterNewRunMode(RUNMODE_UNIX_SOCKET, "autofp",
                              "Unix socket mode",
                              RunModeUnixSocketMaster);
#endif
}
 
TmEcode UnixSocketPcapFile(TmEcode tm, struct timespec *last_processed)
{
#ifdef BUILD_UNIX_SOCKET
    if(last_processed) {
        SCCtrlMutexLock(&unix_manager_pcap_last_processed_mutex);
        unix_manager_pcap_last_processed.tv_sec = last_processed->tv_sec;
        unix_manager_pcap_last_processed.tv_nsec = last_processed->tv_nsec;
        SCCtrlMutexUnlock(&unix_manager_pcap_last_processed_mutex);
    }
    switch (tm) {
        case TM_ECODE_DONE:
            SCLogInfo("Marking current task as done");
            unix_manager_pcap_task_running = 0;
            return TM_ECODE_DONE;
        case TM_ECODE_FAILED:
            SCLogInfo("Marking current task as failed");
            unix_manager_pcap_task_running = 0;
            unix_manager_pcap_task_failed = 1;
            //if we return failed, we can't stop the thread and suricata will fail to close
            return TM_ECODE_FAILED;
        case TM_ECODE_OK:
            if (unix_manager_pcap_task_interrupted == 1) {
                SCLogInfo("Interrupting current run mode");
                unix_manager_pcap_task_interrupted = 0;
                return TM_ECODE_DONE;
            } else {
                return TM_ECODE_OK;
            }
    }
#endif
    return TM_ECODE_FAILED;
}
 
#ifdef BUILD_UNIX_SOCKET
/**
 * \brief Command to add data to a dataset
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketDatasetAdd(json_t *cmd, json_t* answer, void *data)
{
    /* 1 get dataset name */
    json_t *narg = json_object_get(cmd, "setname");
    if (!json_is_string(narg)) {
        json_object_set_new(answer, "message", json_string("setname is not a string"));
        return TM_ECODE_FAILED;
    }
    const char *set_name = json_string_value(narg);
 
    /* 2 get the data type */
    json_t *targ = json_object_get(cmd, "settype");
    if (!json_is_string(targ)) {
        json_object_set_new(answer, "message", json_string("settype is not a string"));
        return TM_ECODE_FAILED;
    }
    const char *type = json_string_value(targ);
 
    /* 3 get value */
    json_t *varg = json_object_get(cmd, "datavalue");
    if (!json_is_string(varg)) {
        json_object_set_new(answer, "message", json_string("datavalue is not string"));
        return TM_ECODE_FAILED;
    }
    const char *value = json_string_value(varg);
 
    SCLogDebug("dataset-add: %s type %s value %s", set_name, type, value);
 
    enum DatasetTypes t = DatasetGetTypeFromString(type);
    if (t == DATASET_TYPE_NOTSET) {
        json_object_set_new(answer, "message", json_string("unknown settype"));
        return TM_ECODE_FAILED;
    }
 
    Dataset *set = DatasetFind(set_name, t);
    if (set == NULL) {
        json_object_set_new(answer, "message", json_string("set not found or wrong type"));
        return TM_ECODE_FAILED;
    }
 
    int r = DatasetAddSerialized(set, value);
    if (r == 1) {
        json_object_set_new(answer, "message", json_string("data added"));
        return TM_ECODE_OK;
    } else if (r == 0) {
        json_object_set_new(answer, "message", json_string("data already in set"));
        return TM_ECODE_OK;
    } else {
        json_object_set_new(answer, "message", json_string("failed to add data"));
        return TM_ECODE_FAILED;
    }
}
 
TmEcode UnixSocketDatasetRemove(json_t *cmd, json_t* answer, void *data)
{
    /* 1 get dataset name */
    json_t *narg = json_object_get(cmd, "setname");
    if (!json_is_string(narg)) {
        json_object_set_new(answer, "message", json_string("setname is not a string"));
        return TM_ECODE_FAILED;
    }
    const char *set_name = json_string_value(narg);
 
    /* 2 get the data type */
    json_t *targ = json_object_get(cmd, "settype");
    if (!json_is_string(targ)) {
        json_object_set_new(answer, "message", json_string("settype is not a string"));
        return TM_ECODE_FAILED;
    }
    const char *type = json_string_value(targ);
 
    /* 3 get value */
    json_t *varg = json_object_get(cmd, "datavalue");
    if (!json_is_string(varg)) {
        json_object_set_new(answer, "message", json_string("datavalue is not string"));
        return TM_ECODE_FAILED;
    }
    const char *value = json_string_value(varg);
 
    SCLogDebug("dataset-remove: %s type %s value %s", set_name, type, value);
 
    enum DatasetTypes t = DatasetGetTypeFromString(type);
    if (t == DATASET_TYPE_NOTSET) {
        json_object_set_new(answer, "message", json_string("unknown settype"));
        return TM_ECODE_FAILED;
    }
 
    Dataset *set = DatasetFind(set_name, t);
    if (set == NULL) {
        json_object_set_new(answer, "message", json_string("set not found or wrong type"));
        return TM_ECODE_FAILED;
    }
 
    int r = DatasetRemoveSerialized(set, value);
    if (r == 1) {
        json_object_set_new(answer, "message", json_string("data removed"));
        return TM_ECODE_OK;
    } else if (r == 0) {
        json_object_set_new(answer, "message", json_string("data is busy, try again"));
        return TM_ECODE_OK;
    } else {
        json_object_set_new(answer, "message", json_string("failed to remove data"));
        return TM_ECODE_FAILED;
    }
}
 
/**
 * \brief Command to add a tenant handler
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketRegisterTenantHandler(json_t *cmd, json_t* answer, void *data)
{
    const char *htype;
    json_int_t traffic_id = -1;
 
    if (!(DetectEngineMultiTenantEnabled())) {
        SCLogInfo("error: multi-tenant support not enabled");
        json_object_set_new(answer, "message", json_string("multi-tenant support not enabled"));
        return TM_ECODE_FAILED;
    }
 
    /* 1 get tenant id */
    json_t *jarg = json_object_get(cmd, "id");
    if (!json_is_integer(jarg)) {
        SCLogInfo("error: command is not a string");
        json_object_set_new(answer, "message", json_string("id is not an integer"));
        return TM_ECODE_FAILED;
    }
    int tenant_id = json_integer_value(jarg);
 
    /* 2 get tenant handler type */
    jarg = json_object_get(cmd, "htype");
    if (!json_is_string(jarg)) {
        SCLogInfo("error: command is not a string");
        json_object_set_new(answer, "message", json_string("command is not a string"));
        return TM_ECODE_FAILED;
    }
    htype = json_string_value(jarg);
 
    SCLogDebug("add-tenant-handler: %d %s", tenant_id, htype);
 
    /* 3 get optional hargs */
    json_t *hargs = json_object_get(cmd, "hargs");
    if (hargs != NULL) {
        if (!json_is_integer(hargs)) {
            SCLogInfo("error: hargs not a number");
            json_object_set_new(answer, "message", json_string("hargs not a number"));
            return TM_ECODE_FAILED;
        }
        traffic_id = json_integer_value(hargs);
    }
 
    /* 4 add to system */
    int r = -1;
    if (strcmp(htype, "pcap") == 0) {
        r = DetectEngineTentantRegisterPcapFile(tenant_id);
    } else if (strcmp(htype, "vlan") == 0) {
        if (traffic_id < 0) {
            json_object_set_new(answer, "message", json_string("vlan requires argument"));
            return TM_ECODE_FAILED;
        }
        if (traffic_id > USHRT_MAX) {
            json_object_set_new(answer, "message", json_string("vlan argument out of range"));
            return TM_ECODE_FAILED;
        }
 
        SCLogInfo("VLAN handler: id %u maps to tenant %u", (uint32_t)traffic_id, tenant_id);
        r = DetectEngineTentantRegisterVlanId(tenant_id, (uint16_t)traffic_id);
    }
    if (r != 0) {
        json_object_set_new(answer, "message", json_string("handler setup failure"));
        return TM_ECODE_FAILED;
    }
 
    if (DetectEngineMTApply() < 0) {
        json_object_set_new(answer, "message", json_string("couldn't apply settings"));
        // TODO cleanup
        return TM_ECODE_FAILED;
    }
 
    json_object_set_new(answer, "message", json_string("handler added"));
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to remove a tenant handler
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketUnregisterTenantHandler(json_t *cmd, json_t* answer, void *data)
{
    const char *htype;
    json_int_t traffic_id = -1;
 
    if (!(DetectEngineMultiTenantEnabled())) {
        SCLogInfo("error: multi-tenant support not enabled");
        json_object_set_new(answer, "message", json_string("multi-tenant support not enabled"));
        return TM_ECODE_FAILED;
    }
 
    /* 1 get tenant id */
    json_t *jarg = json_object_get(cmd, "id");
    if (!json_is_integer(jarg)) {
        SCLogInfo("error: command is not a string");
        json_object_set_new(answer, "message", json_string("id is not an integer"));
        return TM_ECODE_FAILED;
    }
    int tenant_id = json_integer_value(jarg);
 
    /* 2 get tenant handler type */
    jarg = json_object_get(cmd, "htype");
    if (!json_is_string(jarg)) {
        SCLogInfo("error: command is not a string");
        json_object_set_new(answer, "message", json_string("command is not a string"));
        return TM_ECODE_FAILED;
    }
    htype = json_string_value(jarg);
 
    SCLogDebug("add-tenant-handler: %d %s", tenant_id, htype);
 
    /* 3 get optional hargs */
    json_t *hargs = json_object_get(cmd, "hargs");
    if (hargs != NULL) {
        if (!json_is_integer(hargs)) {
            SCLogInfo("error: hargs not a number");
            json_object_set_new(answer, "message", json_string("hargs not a number"));
            return TM_ECODE_FAILED;
        }
        traffic_id = json_integer_value(hargs);
    }
 
    /* 4 add to system */
    int r = -1;
    if (strcmp(htype, "pcap") == 0) {
        r = DetectEngineTentantUnregisterPcapFile(tenant_id);
    } else if (strcmp(htype, "vlan") == 0) {
        if (traffic_id < 0) {
            json_object_set_new(answer, "message", json_string("vlan requires argument"));
            return TM_ECODE_FAILED;
        }
        if (traffic_id > USHRT_MAX) {
            json_object_set_new(answer, "message", json_string("vlan argument out of range"));
            return TM_ECODE_FAILED;
        }
 
        SCLogInfo("VLAN handler: removing mapping of %u to tenant %u", (uint32_t)traffic_id, tenant_id);
        r = DetectEngineTentantUnregisterVlanId(tenant_id, (uint16_t)traffic_id);
    }
    if (r != 0) {
        json_object_set_new(answer, "message", json_string("handler unregister failure"));
        return TM_ECODE_FAILED;
    }
 
    /* 5 apply it */
    if (DetectEngineMTApply() < 0) {
        json_object_set_new(answer, "message", json_string("couldn't apply settings"));
        // TODO cleanup
        return TM_ECODE_FAILED;
    }
 
    json_object_set_new(answer, "message", json_string("handler removed"));
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to add a tenant
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketRegisterTenant(json_t *cmd, json_t* answer, void *data)
{
    const char *filename;
#ifdef OS_WIN32
    struct _stat st;
#else
    struct stat st;
#endif /* OS_WIN32 */
 
    if (!(DetectEngineMultiTenantEnabled())) {
        SCLogInfo("error: multi-tenant support not enabled");
        json_object_set_new(answer, "message", json_string("multi-tenant support not enabled"));
        return TM_ECODE_FAILED;
    }
 
    /* 1 get tenant id */
    json_t *jarg = json_object_get(cmd, "id");
    if (!json_is_integer(jarg)) {
        json_object_set_new(answer, "message", json_string("id is not an integer"));
        return TM_ECODE_FAILED;
    }
    int tenant_id = json_integer_value(jarg);
 
    /* 2 get tenant yaml */
    jarg = json_object_get(cmd, "filename");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("command is not a string"));
        return TM_ECODE_FAILED;
    }
    filename = json_string_value(jarg);
#ifdef OS_WIN32
    if (_stat(filename, &st) != 0) {
#else
    if (stat(filename, &st) != 0) {
#endif /* OS_WIN32 */
        json_object_set_new(answer, "message", json_string("file does not exist"));
        return TM_ECODE_FAILED;
    }
 
    SCLogDebug("add-tenant: %d %s", tenant_id, filename);
 
    /* setup the yaml in this loop so that it's not done by the loader
     * threads. ConfYamlLoadFileWithPrefix is not thread safe. */
    char prefix[64];
    snprintf(prefix, sizeof(prefix), "multi-detect.%d", tenant_id);
    if (ConfYamlLoadFileWithPrefix(filename, prefix) != 0) {
        SCLogError(SC_ERR_CONF_YAML_ERROR, "failed to load yaml %s", filename);
        json_object_set_new(answer, "message", json_string("failed to load yaml"));
        return TM_ECODE_FAILED;
    }
 
    /* 3 load into the system */
    if (DetectEngineLoadTenantBlocking(tenant_id, filename) != 0) {
        json_object_set_new(answer, "message", json_string("adding tenant failed"));
        return TM_ECODE_FAILED;
    }
 
    /* 4 apply to the running system */
    if (DetectEngineMTApply() < 0) {
        json_object_set_new(answer, "message", json_string("couldn't apply settings"));
        // TODO cleanup
        return TM_ECODE_FAILED;
    }
 
    json_object_set_new(answer, "message", json_string("adding tenant succeeded"));
    return TM_ECODE_OK;
}
 
static int reload_cnt = 1;
/**
 * \brief Command to reload a tenant
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketReloadTenant(json_t *cmd, json_t* answer, void *data)
{
    const char *filename;
#ifdef OS_WIN32
    struct _stat st;
#else
    struct stat st;
#endif /* OS_WIN32 */
 
    if (!(DetectEngineMultiTenantEnabled())) {
        SCLogInfo("error: multi-tenant support not enabled");
        json_object_set_new(answer, "message", json_string("multi-tenant support not enabled"));
        return TM_ECODE_FAILED;
    }
 
    /* 1 get tenant id */
    json_t *jarg = json_object_get(cmd, "id");
    if (!json_is_integer(jarg)) {
        json_object_set_new(answer, "message", json_string("id is not an integer"));
        return TM_ECODE_FAILED;
    }
    int tenant_id = json_integer_value(jarg);
 
    /* 2 get tenant yaml */
    jarg = json_object_get(cmd, "filename");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("command is not a string"));
        return TM_ECODE_FAILED;
    }
    filename = json_string_value(jarg);
#ifdef OS_WIN32
    if (_stat(filename, &st) != 0) {
#else
    if (stat(filename, &st) != 0) {
#endif /* OS_WIN32 */
        json_object_set_new(answer, "message", json_string("file does not exist"));
        return TM_ECODE_FAILED;
    }
 
    SCLogDebug("reload-tenant: %d %s", tenant_id, filename);
 
    char prefix[64];
    snprintf(prefix, sizeof(prefix), "multi-detect.%d.reload.%d", tenant_id, reload_cnt);
    SCLogInfo("prefix %s", prefix);
 
    if (ConfYamlLoadFileWithPrefix(filename, prefix) != 0) {
        json_object_set_new(answer, "message", json_string("failed to load yaml"));
        return TM_ECODE_FAILED;
    }
 
    /* 3 load into the system */
    if (DetectEngineReloadTenantBlocking(tenant_id, filename, reload_cnt) != 0) {
        json_object_set_new(answer, "message", json_string("reload tenant failed"));
        return TM_ECODE_FAILED;
    }
 
    reload_cnt++;
 
    /*  apply to the running system */
    if (DetectEngineMTApply() < 0) {
        json_object_set_new(answer, "message", json_string("couldn't apply settings"));
        // TODO cleanup
        return TM_ECODE_FAILED;
    }
 
    json_object_set_new(answer, "message", json_string("reloading tenant succeeded"));
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to remove a tenant
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 * \param data pointer to data defining the context here a PcapCommand::
 */
TmEcode UnixSocketUnregisterTenant(json_t *cmd, json_t* answer, void *data)
{
    if (!(DetectEngineMultiTenantEnabled())) {
        SCLogInfo("error: multi-tenant support not enabled");
        json_object_set_new(answer, "message", json_string("multi-tenant support not enabled"));
        return TM_ECODE_FAILED;
    }
 
    /* 1 get tenant id */
    json_t *jarg = json_object_get(cmd, "id");
    if (!json_is_integer(jarg)) {
        SCLogInfo("error: command is not a string");
        json_object_set_new(answer, "message", json_string("id is not an integer"));
        return TM_ECODE_FAILED;
    }
    int tenant_id = json_integer_value(jarg);
 
    SCLogInfo("remove-tenant: removing tenant %d", tenant_id);
 
    /* 2 remove it from the system */
    char prefix[64];
    snprintf(prefix, sizeof(prefix), "multi-detect.%d", tenant_id);
 
    DetectEngineCtx *de_ctx = DetectEngineGetByTenantId(tenant_id);
    if (de_ctx == NULL) {
        json_object_set_new(answer, "message", json_string("tenant detect engine not found"));
        return TM_ECODE_FAILED;
    }
 
    /* move to free list */
    DetectEngineMoveToFreeList(de_ctx);
    DetectEngineDeReference(&de_ctx);
 
    /* update the threads */
    if (DetectEngineMTApply() < 0) {
        json_object_set_new(answer, "message", json_string("couldn't apply settings"));
        // TODO cleanup
        return TM_ECODE_FAILED;
    }
 
    /* walk free list, freeing the removed de_ctx */
    DetectEnginePruneFreeList();
 
    json_object_set_new(answer, "message", json_string("removing tenant succeeded"));
    return TM_ECODE_OK;
}
 
/**
 * \brief Command to add a hostbit
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 */
TmEcode UnixSocketHostbitAdd(json_t *cmd, json_t* answer, void *data_usused)
{
    /* 1 get ip address */
    json_t *jarg = json_object_get(cmd, "ipaddress");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("ipaddress is not an string"));
        return TM_ECODE_FAILED;
    }
    const char *ipaddress = json_string_value(jarg);
 
    Address a;
    struct in_addr in;
    memset(&in, 0, sizeof(in));
    if (inet_pton(AF_INET, ipaddress, &in) != 1) {
        uint32_t in6[4];
        memset(&in6, 0, sizeof(in6));
        if (inet_pton(AF_INET6, ipaddress, &in) != 1) {
            json_object_set_new(answer, "message", json_string("invalid address string"));
            return TM_ECODE_FAILED;
        } else {
            a.family = AF_INET6;
            a.addr_data32[0] = in6[0];
            a.addr_data32[1] = in6[1];
            a.addr_data32[2] = in6[2];
            a.addr_data32[3] = in6[3];
        }
    } else {
        a.family = AF_INET;
        a.addr_data32[0] = in.s_addr;
        a.addr_data32[1] = 0;
        a.addr_data32[2] = 0;
        a.addr_data32[3] = 0;
    }
 
    /* 2 get variable name */
    jarg = json_object_get(cmd, "hostbit");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("hostbit is not a string"));
        return TM_ECODE_FAILED;
    }
    const char *hostbit = json_string_value(jarg);
    uint32_t idx = VarNameStoreLookupByName(hostbit, VAR_TYPE_HOST_BIT);
    if (idx == 0) {
        json_object_set_new(answer, "message", json_string("hostbit not found"));
        return TM_ECODE_FAILED;
    }
 
    /* 3 get expire */
    jarg = json_object_get(cmd, "expire");
    if (!json_is_integer(jarg)) {
        json_object_set_new(answer, "message", json_string("expire is not an integer"));
        return TM_ECODE_FAILED;
    }
    uint32_t expire = json_integer_value(jarg);
 
    SCLogInfo("add-hostbit: ip %s hostbit %s expire %us", ipaddress, hostbit, expire);
 
    struct timeval current_time;
    TimeGet(&current_time);
    Host *host = HostGetHostFromHash(&a);
    if (host) {
        HostBitSet(host, idx, current_time.tv_sec + expire);
        HostUnlock(host);
 
        json_object_set_new(answer, "message", json_string("hostbit added"));
        return TM_ECODE_OK;
    } else {
        json_object_set_new(answer, "message", json_string("couldn't create host"));
        return TM_ECODE_FAILED;
    }
}
 
/**
 * \brief Command to remove a hostbit
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 */
TmEcode UnixSocketHostbitRemove(json_t *cmd, json_t* answer, void *data_unused)
{
    /* 1 get ip address */
    json_t *jarg = json_object_get(cmd, "ipaddress");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("ipaddress is not an string"));
        return TM_ECODE_FAILED;
    }
    const char *ipaddress = json_string_value(jarg);
 
    Address a;
    struct in_addr in;
    memset(&in, 0, sizeof(in));
    if (inet_pton(AF_INET, ipaddress, &in) != 1) {
        uint32_t in6[4];
        memset(&in6, 0, sizeof(in6));
        if (inet_pton(AF_INET6, ipaddress, &in) != 1) {
            json_object_set_new(answer, "message", json_string("invalid address string"));
            return TM_ECODE_FAILED;
        } else {
            a.family = AF_INET6;
            a.addr_data32[0] = in6[0];
            a.addr_data32[1] = in6[1];
            a.addr_data32[2] = in6[2];
            a.addr_data32[3] = in6[3];
        }
    } else {
        a.family = AF_INET;
        a.addr_data32[0] = in.s_addr;
        a.addr_data32[1] = 0;
        a.addr_data32[2] = 0;
        a.addr_data32[3] = 0;
    }
 
    /* 2 get variable name */
    jarg = json_object_get(cmd, "hostbit");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("hostbit is not a string"));
        return TM_ECODE_FAILED;
    }
 
    const char *hostbit = json_string_value(jarg);
    uint32_t idx = VarNameStoreLookupByName(hostbit, VAR_TYPE_HOST_BIT);
    if (idx == 0) {
        json_object_set_new(answer, "message", json_string("hostbit not found"));
        return TM_ECODE_FAILED;
    }
 
    SCLogInfo("remove-hostbit: %s %s", ipaddress, hostbit);
 
    Host *host = HostLookupHostFromHash(&a);
    if (host) {
        HostBitUnset(host, idx);
        HostUnlock(host);
        json_object_set_new(answer, "message", json_string("hostbit removed"));
        return TM_ECODE_OK;
    } else {
        json_object_set_new(answer, "message", json_string("host not found"));
        return TM_ECODE_FAILED;
    }
}
 
/**
 * \brief Command to list hostbits for an ip
 *
 * \param cmd the content of command Arguments as a json_t object
 * \param answer the json_t object that has to be used to answer
 *
 * Message looks like:
 * {"message": {"count": 1, "hostbits": [{"expire": 3222, "name": "firefox-users"}]}, "return": "OK"}
 *
 * \retval r TM_ECODE_OK or TM_ECODE_FAILED
 */
TmEcode UnixSocketHostbitList(json_t *cmd, json_t* answer, void *data_unused)
{
    /* 1 get ip address */
    json_t *jarg = json_object_get(cmd, "ipaddress");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("ipaddress is not an string"));
        return TM_ECODE_FAILED;
    }
    const char *ipaddress = json_string_value(jarg);
 
    Address a;
    struct in_addr in;
    memset(&in, 0, sizeof(in));
    if (inet_pton(AF_INET, ipaddress, &in) != 1) {
        uint32_t in6[4];
        memset(&in6, 0, sizeof(in6));
        if (inet_pton(AF_INET6, ipaddress, &in) != 1) {
            json_object_set_new(answer, "message", json_string("invalid address string"));
            return TM_ECODE_FAILED;
        } else {
            a.family = AF_INET6;
            a.addr_data32[0] = in6[0];
            a.addr_data32[1] = in6[1];
            a.addr_data32[2] = in6[2];
            a.addr_data32[3] = in6[3];
        }
    } else {
        a.family = AF_INET;
        a.addr_data32[0] = in.s_addr;
        a.addr_data32[1] = 0;
        a.addr_data32[2] = 0;
        a.addr_data32[3] = 0;
    }
 
    SCLogInfo("list-hostbit: %s", ipaddress);
 
    struct timeval ts;
    memset(&ts, 0, sizeof(ts));
    TimeGet(&ts);
 
    struct Bit {
        uint32_t id;
        uint32_t expire;
    } bits[256];
    memset(&bits, 0, sizeof(bits));
    int i = 0, use = 0;
 
    Host *host = HostLookupHostFromHash(&a);
    if (!host) {
        json_object_set_new(answer, "message", json_string("host not found"));
        return TM_ECODE_FAILED;
    }
 
    XBit *iter = NULL;
    while (use < 256 && HostBitList(host, &iter) == 1) {
        bits[use].id = iter->idx;
        bits[use].expire = iter->expire;
        use++;
    }
    HostUnlock(host);
 
    json_t *jdata = json_object();
    json_t *jarray = json_array();
    if (jarray == NULL || jdata == NULL) {
        if (jdata != NULL)
            json_decref(jdata);
        if (jarray != NULL)
            json_decref(jarray);
        json_object_set_new(answer, "message",
                            json_string("internal error at json object creation"));
        return TM_ECODE_FAILED;
    }
 
    for (i = 0; i < use; i++) {
        json_t *bitobject = json_object();
        if (bitobject == NULL)
            continue;
        uint32_t expire = 0;
        if ((uint32_t)ts.tv_sec < bits[i].expire)
            expire = bits[i].expire - (uint32_t)ts.tv_sec;
 
        const char *name = VarNameStoreLookupById(bits[i].id, VAR_TYPE_HOST_BIT);
        if (name == NULL)
            continue;
        json_object_set_new(bitobject, "name", json_string(name));
        SCLogDebug("xbit %s expire %u", name, expire);
        json_object_set_new(bitobject, "expire", json_integer(expire));
        json_array_append_new(jarray, bitobject);
    }
 
    json_object_set_new(jdata, "count", json_integer(i));
    json_object_set_new(jdata, "hostbits", jarray);
    json_object_set_new(answer, "message", jdata);
    return TM_ECODE_OK;
}
 
static void MemcapBuildValue(uint64_t val, char *str, uint32_t str_len)
{
    if ((val / (1024 * 1024 * 1024)) != 0) {
        snprintf(str, str_len, "%"PRIu64"gb", val / (1024*1024*1024));
    } else if ((val / (1024 * 1024)) != 0) {
        snprintf(str, str_len, "%"PRIu64"mb", val / (1024*1024));
    } else {
        snprintf(str, str_len, "%"PRIu64"kb", val / (1024));
    }
}
 
TmEcode UnixSocketSetMemcap(json_t *cmd, json_t* answer, void *data)
{
    char *memcap = NULL;
    char *value_str = NULL;
    uint64_t value;
    int i;
 
    json_t *jarg = json_object_get(cmd, "config");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("memcap key is not a string"));
        return TM_ECODE_FAILED;
    }
    memcap = (char *)json_string_value(jarg);
 
    jarg = json_object_get(cmd, "memcap");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("memcap value is not a string"));
        return TM_ECODE_FAILED;
    }
    value_str = (char *)json_string_value(jarg);
 
    if (ParseSizeStringU64(value_str, &value) < 0) {
        SCLogError(SC_ERR_SIZE_PARSE, "Error parsing "
                   "memcap from unix socket: %s", value_str);
        json_object_set_new(answer, "message",
                            json_string("error parsing memcap specified, "
                                        "value not changed"));
        return TM_ECODE_FAILED;
    }
 
    for (i = 0; i < MEMCAPS_MAX; i++) {
        if (strcmp(memcaps[i].name, memcap) == 0 && memcaps[i].SetFunc) {
            int updated = memcaps[i].SetFunc(value);
            char message[150];
 
            if (updated) {
                snprintf(message, sizeof(message),
                "memcap value for '%s' updated: %"PRIu64" %s",
                memcaps[i].name, value,
                (value == 0) ? "(unlimited)" : "");
                json_object_set_new(answer, "message", json_string(message));
                return TM_ECODE_OK;
            } else {
                if (value == 0) {
                    snprintf(message, sizeof(message),
                             "Unlimited value is not allowed for '%s'", memcaps[i].name);
                } else {
                    if (memcaps[i].GetMemuseFunc()) {
                        char memuse[50];
                        MemcapBuildValue(memcaps[i].GetMemuseFunc(), memuse, sizeof(memuse));
                        snprintf(message, sizeof(message),
                                 "memcap value specified for '%s' is less than the memory in use: %s",
                                 memcaps[i].name, memuse);
                    } else {
                        snprintf(message, sizeof(message),
                                 "memcap value specified for '%s' is less than the memory in use",
                                 memcaps[i].name);
                    }
                }
                json_object_set_new(answer, "message", json_string(message));
                return TM_ECODE_FAILED;
            }
        }
    }
 
    json_object_set_new(answer, "message",
                        json_string("Memcap value not found. Use 'memcap-list' to show all"));
    return TM_ECODE_FAILED;
}
 
TmEcode UnixSocketShowMemcap(json_t *cmd, json_t *answer, void *data)
{
    char *memcap = NULL;
    int i;
 
    json_t *jarg = json_object_get(cmd, "config");
    if (!json_is_string(jarg)) {
        json_object_set_new(answer, "message", json_string("memcap name is not a string"));
        return TM_ECODE_FAILED;
    }
    memcap = (char *)json_string_value(jarg);
 
    for (i = 0; i < MEMCAPS_MAX; i++) {
        if (strcmp(memcaps[i].name, memcap) == 0 && memcaps[i].GetFunc) {
            char str[50];
            uint64_t val = memcaps[i].GetFunc();
            json_t *jobj = json_object();
            if (jobj == NULL) {
                json_object_set_new(answer, "message",
                                json_string("internal error at json object creation"));
                return TM_ECODE_FAILED;
            }
 
            if (val == 0) {
                strlcpy(str, "unlimited", sizeof(str));
            } else {
                MemcapBuildValue(val, str, sizeof(str));
            }
 
            json_object_set_new(jobj, "value", json_string(str));
            json_object_set_new(answer, "message", jobj);
            return TM_ECODE_OK;
        }
    }
 
    json_object_set_new(answer, "message",
                        json_string("Memcap value not found. Use 'memcap-list' to show all"));
    return TM_ECODE_FAILED;
}
 
TmEcode UnixSocketShowAllMemcap(json_t *cmd, json_t *answer, void *data)
{
    json_t *jmemcaps = json_array();
    int i;
 
    if (jmemcaps == NULL) {
        json_object_set_new(answer, "message",
                            json_string("internal error at json array creation"));
        return TM_ECODE_FAILED;
    }
 
    for (i = 0; i < MEMCAPS_MAX; i++) {
        json_t *jobj = json_object();
        if (jobj == NULL) {
            json_decref(jmemcaps);
            json_object_set_new(answer, "message",
                                json_string("internal error at json object creation"));
            return TM_ECODE_FAILED;
        }
        char str[50];
        uint64_t val = memcaps[i].GetFunc();
 
        if (val == 0) {
            strlcpy(str, "unlimited", sizeof(str));
        } else {
            MemcapBuildValue(val, str, sizeof(str));
        }
 
        json_object_set_new(jobj, "name", json_string(memcaps[i].name));
        json_object_set_new(jobj, "value", json_string(str));
        json_array_append_new(jmemcaps, jobj);
    }
 
    json_object_set_new(answer, "message", jmemcaps);
    SCReturnInt(TM_ECODE_OK);
}
#endif /* BUILD_UNIX_SOCKET */
 
#ifdef BUILD_UNIX_SOCKET
/**
 * \brief Single thread version of the Pcap file processing.
 */
static int RunModeUnixSocketMaster(void)
{
    if (UnixManagerInit() != 0)
        return 1;
 
    PcapCommand *pcapcmd = SCMalloc(sizeof(PcapCommand));
    if (unlikely(pcapcmd == NULL)) {
        SCLogError(SC_ERR_MEM_ALLOC, "Can not allocate pcap command");
        return 1;
    }
    TAILQ_INIT(&pcapcmd->files);
    pcapcmd->running = 0;
    pcapcmd->current_file = NULL;
 
    memset(&unix_manager_pcap_last_processed, 0, sizeof(struct timespec));
 
    SCCtrlMutexInit(&unix_manager_pcap_last_processed_mutex, NULL);
 
    UnixManagerRegisterCommand("pcap-file", UnixSocketAddPcapFile, pcapcmd, UNIX_CMD_TAKE_ARGS);
    UnixManagerRegisterCommand("pcap-file-continuous", UnixSocketAddPcapFileContinuous, pcapcmd, UNIX_CMD_TAKE_ARGS);
    UnixManagerRegisterCommand("pcap-file-number", UnixSocketPcapFilesNumber, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-file-list", UnixSocketPcapFilesList, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-last-processed", UnixSocketPcapLastProcessed, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-interrupt", UnixSocketPcapInterrupt, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-current", UnixSocketPcapCurrent, pcapcmd, 0);
 
    UnixManagerRegisterBackgroundTask(UnixSocketPcapFilesCheck, pcapcmd);
 
    UnixManagerThreadSpawn(1);
    unix_socket_mode_is_running = 1;
 
    return 0;
}
#endif
 
int RunModeUnixSocketIsActive(void)
{
    return unix_socket_mode_is_running;
}