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author | 2015-09-09 22:21:41 -0700 | |
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committer | 2015-09-09 22:21:41 -0700 | |
commit | 8879b125d26e8db1a5633de5a9c692eb2d1c4f83 (patch) | |
tree | c7259d85a991b83dfa85ab2e339360669fc1f58e /framework/src/suricata/src/runmode-nflog.c | |
parent | 13d05bc8458758ee39cb829098241e89616717ee (diff) |
suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a
Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f
Diffstat (limited to 'framework/src/suricata/src/runmode-nflog.c')
-rw-r--r-- | framework/src/suricata/src/runmode-nflog.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/framework/src/suricata/src/runmode-nflog.c b/framework/src/suricata/src/runmode-nflog.c new file mode 100644 index 00000000..9c08f9ae --- /dev/null +++ b/framework/src/suricata/src/runmode-nflog.c @@ -0,0 +1,254 @@ +/* Copyright (C) 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 Giuseppe Longo <giuseppelng@gmail.com> + */ +#include "suricata-common.h" +#include "config.h" +#include "tm-threads.h" +#include "conf.h" +#include "runmodes.h" +#include "runmode-nflog.h" + +#include "util-debug.h" +#include "util-device.h" +#include "util-runmodes.h" +#include "util-misc.h" + +#include "source-nflog.h" + +static const char *default_mode = NULL; + +const char *RunModeIdsNflogGetDefaultMode(void) +{ + return default_mode; +} + +void RunModeIdsNflogRegister(void) +{ + default_mode = "autofp"; + RunModeRegisterNewRunMode(RUNMODE_NFLOG, "autofp", + "Multi threaded nflog mode", + RunModeIdsNflogAutoFp); + RunModeRegisterNewRunMode(RUNMODE_NFLOG, "single", + "Single threaded nflog mode", + RunModeIdsNflogSingle); + RunModeRegisterNewRunMode(RUNMODE_NFLOG, "workers", + "Workers nflog mode", + RunModeIdsNflogWorkers); + return; +} + + +static void NflogDerefConfig(void *data) +{ + NflogGroupConfig *nflogconf = (NflogGroupConfig *)data; + SCFree(nflogconf); +} + +void *ParseNflogConfig(const char *group) +{ + ConfNode *group_root; + ConfNode *group_default = NULL; + ConfNode *nflog_node; + NflogGroupConfig *nflogconf = SCMalloc(sizeof(*nflogconf)); + intmax_t bufsize; + intmax_t bufsize_max; + intmax_t qthreshold; + intmax_t qtimeout; + int boolval; + + if (unlikely(nflogconf == NULL)) + return NULL; + + if (group == NULL) { + SCFree(nflogconf); + return NULL; + } + + nflogconf->DerefFunc = NflogDerefConfig; + nflog_node = ConfGetNode("nflog"); + + if (nflog_node == NULL) { + SCLogInfo("Unable to find nflog config using default value"); + return nflogconf; + } + + group_root = ConfNodeLookupKeyValue(nflog_node, "group", group); + + group_default = ConfNodeLookupKeyValue(nflog_node, "group", "default"); + + if (group_root == NULL && group_default == NULL) { + SCLogInfo("Unable to find nflog config for " + "group \"%s\" or \"default\", using default value", + group); + return nflogconf; + } + + nflogconf->nful_overrun_warned = 0; + strlcpy(nflogconf->numgroup, group, sizeof(nflogconf->numgroup)); + + if (ParseSizeStringU16(group, &nflogconf->group) < 0) { + SCLogError(SC_ERR_NFLOG_GROUP, "NFLOG's group number invalid."); + exit(EXIT_FAILURE); + } + + boolval = ConfGetChildValueIntWithDefault(group_root, group_default, + "buffer-size", &bufsize); + + if (boolval) + nflogconf->nlbufsiz = bufsize; + else { + SCLogError(SC_ERR_INVALID_ARGUMENT, "Invalid buffer-size value"); + SCFree(nflogconf); + return NULL; + } + + boolval = ConfGetChildValueIntWithDefault(group_root, group_default, + "max-size", &bufsize_max); + + if (boolval) + nflogconf->nlbufsiz_max = bufsize_max; + else { + SCLogError(SC_ERR_INVALID_ARGUMENT, "Invalid max-size value"); + SCFree(nflogconf); + return NULL; + } + + if (nflogconf->nlbufsiz > nflogconf->nlbufsiz_max) { + SCLogWarning(SC_ERR_INVALID_ARGUMENT, "buffer-size value larger " + "than max-size value, adjusting buffer-size"); + nflogconf->nlbufsiz = nflogconf->nlbufsiz_max; + } + + boolval = ConfGetChildValueIntWithDefault(group_root, group_default, + "qthreshold", &qthreshold); + + if (boolval) + nflogconf->qthreshold = qthreshold; + else { + SCLogError(SC_ERR_INVALID_ARGUMENT, "Invalid qthreshold value"); + SCFree(nflogconf); + return NULL; + } + + boolval = ConfGetChildValueIntWithDefault(group_root, group_default, + "qtimeout", &qtimeout); + + if (boolval) + nflogconf->qtimeout = qtimeout; + else { + SCLogError(SC_ERR_INVALID_ARGUMENT, "Invalid qtimeout value"); + SCFree(nflogconf); + return NULL; + } + + return nflogconf; +} + +int NflogConfigGeThreadsCount(void *conf) +{ + /* for each nflog group there is no reason to use more than 1 thread */ + return 1; +} + +int RunModeIdsNflogAutoFp(void) +{ + SCEnter(); + +#ifdef HAVE_NFLOG + int ret = 0; + char *live_dev = NULL; + + RunModeInitialize(); + TimeModeSetLive(); + + ret = RunModeSetLiveCaptureAutoFp(ParseNflogConfig, + NflogConfigGeThreadsCount, + "ReceiveNFLOG", + "DecodeNFLOG", + "RecvNFLOG", + live_dev); + if (ret != 0) { + SCLogError(SC_ERR_RUNMODE, "Unable to start runmode"); + exit(EXIT_FAILURE); + } + + SCLogInfo("RunModeIdsNflogAutoFp initialised"); +#endif /* HAVE_NFLOG */ + + SCReturnInt(0); +} + +int RunModeIdsNflogSingle(void) +{ + SCEnter(); + +#ifdef HAVE_NFLOG + int ret = 0; + char *live_dev = NULL; + + RunModeInitialize(); + TimeModeSetLive(); + + ret = RunModeSetLiveCaptureSingle(ParseNflogConfig, + NflogConfigGeThreadsCount, + "ReceiveNFLOG", + "DecodeNFLOG", + "RecvNFLOG", + live_dev); + if (ret != 0) { + SCLogError(SC_ERR_RUNMODE, "Unable to start runmode"); + exit(EXIT_FAILURE); + } + + SCLogInfo("RunModeIdsNflogSingle initialised"); +#endif /* HAVE_NFLOG */ + + SCReturnInt(0); +} + +int RunModeIdsNflogWorkers(void) +{ + SCEnter(); + +#ifdef HAVE_NFLOG + int ret = 0; + char *live_dev = NULL; + + RunModeInitialize(); + TimeModeSetLive(); + + ret = RunModeSetLiveCaptureWorkers(ParseNflogConfig, + NflogConfigGeThreadsCount, + "ReceiveNFLOG", + "DecodeNFLOG", + "RecvNFLOG", + live_dev); + if (ret != 0) { + SCLogError(SC_ERR_RUNMODE, "Unable to start runmode"); + exit(EXIT_FAILURE); + } + + SCLogInfo("RunModeIdsNflogWorkers initialised"); +#endif /* HAVE_NFLOG */ + + SCReturnInt(0); +} |