diff options
author | Ashlee Young <ashlee@wildernessvoice.com> | 2016-01-20 01:10:01 +0000 |
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committer | Ashlee Young <ashlee@wildernessvoice.com> | 2016-01-20 01:10:11 +0000 |
commit | 19d701ddf07d855128ded0cf2b573ce468e3bdd6 (patch) | |
tree | 0edcd3461ca903c76e431bb7c6348c42a0f12488 /framework/src/suricata/src/tmqh-flow.c | |
parent | fac6fbefbfad1cf837ddd88bc0d330559c8eb6f9 (diff) |
Removing Suricata and Audit from source repo, and updated build.sh to avoid building suricata. Will re-address this in C release via tar balls.
Change-Id: I3710076f8b7f3313cb3cb5260c4eb0a6834d4f6e
Signed-off-by: Ashlee Young <ashlee@wildernessvoice.com>
Diffstat (limited to 'framework/src/suricata/src/tmqh-flow.c')
-rw-r--r-- | framework/src/suricata/src/tmqh-flow.c | 510 |
1 files changed, 0 insertions, 510 deletions
diff --git a/framework/src/suricata/src/tmqh-flow.c b/framework/src/suricata/src/tmqh-flow.c deleted file mode 100644 index c0898ef0..00000000 --- a/framework/src/suricata/src/tmqh-flow.c +++ /dev/null @@ -1,510 +0,0 @@ -/* Copyright (C) 2007-2013 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 Victor Julien <victor@inliniac.net> - * \author Anoop Saldanha <anoopsaldanha@gmail.com> - * - * Simple output queue handler that makes sure all packets of the same flow - * are sent to the same queue. We support different kind of q handlers. Have - * a look at "autofp-scheduler" conf to further undertsand the various q - * handlers we provide. - */ - -#include "suricata.h" -#include "packet-queue.h" -#include "decode.h" -#include "threads.h" -#include "threadvars.h" -#include "tmqh-flow.h" - -#include "tm-queuehandlers.h" - -#include "conf.h" -#include "util-unittest.h" - -Packet *TmqhInputFlow(ThreadVars *t); -void TmqhOutputFlowHash(ThreadVars *t, Packet *p); -void TmqhOutputFlowActivePackets(ThreadVars *t, Packet *p); -void TmqhOutputFlowRoundRobin(ThreadVars *t, Packet *p); -void *TmqhOutputFlowSetupCtx(char *queue_str); -void TmqhOutputFlowFreeCtx(void *ctx); -void TmqhFlowRegisterTests(void); - -void TmqhFlowRegister(void) -{ - tmqh_table[TMQH_FLOW].name = "flow"; - tmqh_table[TMQH_FLOW].InHandler = TmqhInputFlow; - tmqh_table[TMQH_FLOW].OutHandlerCtxSetup = TmqhOutputFlowSetupCtx; - tmqh_table[TMQH_FLOW].OutHandlerCtxFree = TmqhOutputFlowFreeCtx; - tmqh_table[TMQH_FLOW].RegisterTests = TmqhFlowRegisterTests; - - char *scheduler = NULL; - if (ConfGet("autofp-scheduler", &scheduler) == 1) { - if (strcasecmp(scheduler, "round-robin") == 0) { - SCLogInfo("AutoFP mode using \"Round Robin\" flow load balancer"); - tmqh_table[TMQH_FLOW].OutHandler = TmqhOutputFlowRoundRobin; - } else if (strcasecmp(scheduler, "active-packets") == 0) { - SCLogInfo("AutoFP mode using \"Active Packets\" flow load balancer"); - tmqh_table[TMQH_FLOW].OutHandler = TmqhOutputFlowActivePackets; - } else if (strcasecmp(scheduler, "hash") == 0) { - SCLogInfo("AutoFP mode using \"Hash\" flow load balancer"); - tmqh_table[TMQH_FLOW].OutHandler = TmqhOutputFlowHash; - } else { - SCLogError(SC_ERR_INVALID_YAML_CONF_ENTRY, "Invalid entry \"%s\" " - "for autofp-scheduler in conf. Killing engine.", - scheduler); - exit(EXIT_FAILURE); - } - } else { - SCLogInfo("AutoFP mode using default \"Active Packets\" flow load balancer"); - tmqh_table[TMQH_FLOW].OutHandler = TmqhOutputFlowActivePackets; - } - - return; -} - -/* same as 'simple' */ -Packet *TmqhInputFlow(ThreadVars *tv) -{ - PacketQueue *q = &trans_q[tv->inq->id]; - - StatsSyncCountersIfSignalled(tv); - - SCMutexLock(&q->mutex_q); - if (q->len == 0) { - /* if we have no packets in queue, wait... */ - SCCondWait(&q->cond_q, &q->mutex_q); - } - - if (q->len > 0) { - Packet *p = PacketDequeue(q); - SCMutexUnlock(&q->mutex_q); - return p; - } else { - /* return NULL if we have no pkt. Should only happen on signals. */ - SCMutexUnlock(&q->mutex_q); - return NULL; - } -} - -static int StoreQueueId(TmqhFlowCtx *ctx, char *name) -{ - void *ptmp; - Tmq *tmq = TmqGetQueueByName(name); - if (tmq == NULL) { - tmq = TmqCreateQueue(SCStrdup(name)); - if (tmq == NULL) - return -1; - } - tmq->writer_cnt++; - - uint16_t id = tmq->id; - - if (ctx->queues == NULL) { - ctx->size = 1; - ctx->queues = SCMalloc(ctx->size * sizeof(TmqhFlowMode)); - if (ctx->queues == NULL) { - return -1; - } - memset(ctx->queues, 0, ctx->size * sizeof(TmqhFlowMode)); - } else { - ctx->size++; - ptmp = SCRealloc(ctx->queues, ctx->size * sizeof(TmqhFlowMode)); - if (ptmp == NULL) { - SCFree(ctx->queues); - ctx->queues = NULL; - return -1; - } - ctx->queues = ptmp; - - memset(ctx->queues + (ctx->size - 1), 0, sizeof(TmqhFlowMode)); - } - ctx->queues[ctx->size - 1].q = &trans_q[id]; - SC_ATOMIC_INIT(ctx->queues[ctx->size - 1].total_packets); - SC_ATOMIC_INIT(ctx->queues[ctx->size - 1].total_flows); - - return 0; -} - -/** - * \brief setup the queue handlers ctx - * - * Parses a comma separated string "queuename1,queuename2,etc" - * and sets the ctx up to devide flows over these queue's. - * - * \param queue_str comma separated string with output queue names - * - * \retval ctx queues handlers ctx or NULL in error - */ -void *TmqhOutputFlowSetupCtx(char *queue_str) -{ - if (queue_str == NULL || strlen(queue_str) == 0) - return NULL; - - SCLogDebug("queue_str %s", queue_str); - - TmqhFlowCtx *ctx = SCMalloc(sizeof(TmqhFlowCtx)); - if (unlikely(ctx == NULL)) - return NULL; - memset(ctx,0x00,sizeof(TmqhFlowCtx)); - - char *str = SCStrdup(queue_str); - if (unlikely(str == NULL)) { - goto error; - } - char *tstr = str; - - /* parse the comma separated string */ - do { - char *comma = strchr(tstr,','); - if (comma != NULL) { - *comma = '\0'; - char *qname = tstr; - int r = StoreQueueId(ctx,qname); - if (r < 0) - goto error; - } else { - char *qname = tstr; - int r = StoreQueueId(ctx,qname); - if (r < 0) - goto error; - } - tstr = comma ? (comma + 1) : comma; - } while (tstr != NULL); - - SC_ATOMIC_INIT(ctx->round_robin_idx); - - SCFree(str); - return (void *)ctx; - -error: - SCFree(ctx); - if (str != NULL) - SCFree(str); - return NULL; -} - -void TmqhOutputFlowFreeCtx(void *ctx) -{ - int i; - TmqhFlowCtx *fctx = (TmqhFlowCtx *)ctx; - - SCLogInfo("AutoFP - Total flow handler queues - %" PRIu16, - fctx->size); - for (i = 0; i < fctx->size; i++) { - SCLogInfo("AutoFP - Queue %-2"PRIu32 " - pkts: %-12"PRIu64" flows: %-12"PRIu64, i, - SC_ATOMIC_GET(fctx->queues[i].total_packets), - SC_ATOMIC_GET(fctx->queues[i].total_flows)); - SC_ATOMIC_DESTROY(fctx->queues[i].total_packets); - SC_ATOMIC_DESTROY(fctx->queues[i].total_flows); - } - - SCFree(fctx->queues); - - return; -} - -/** - * \brief select the queue to output in a round robin fashion. - * - * \param tv thread vars - * \param p packet - */ -void TmqhOutputFlowRoundRobin(ThreadVars *tv, Packet *p) -{ - int16_t qid = 0; - - TmqhFlowCtx *ctx = (TmqhFlowCtx *)tv->outctx; - - /* if no flow we use the first queue, - * should be rare */ - if (p->flow != NULL) { - qid = SC_ATOMIC_GET(p->flow->autofp_tmqh_flow_qid); - if (qid == -1) { - qid = SC_ATOMIC_ADD(ctx->round_robin_idx, 1); - if (qid >= ctx->size) { - SC_ATOMIC_RESET(ctx->round_robin_idx); - qid = 0; - } - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_flows, 1); - (void) SC_ATOMIC_SET(p->flow->autofp_tmqh_flow_qid, qid); - } - } else { - qid = ctx->last++; - - if (ctx->last == ctx->size) - ctx->last = 0; - } - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_packets, 1); - - PacketQueue *q = ctx->queues[qid].q; - SCMutexLock(&q->mutex_q); - PacketEnqueue(q, p); - SCCondSignal(&q->cond_q); - SCMutexUnlock(&q->mutex_q); - - return; -} - -/** - * \brief select the queue to output to based on queue lengths. - * - * \param tv thread vars - * \param p packet - */ -void TmqhOutputFlowActivePackets(ThreadVars *tv, Packet *p) -{ - int16_t qid = 0; - - TmqhFlowCtx *ctx = (TmqhFlowCtx *)tv->outctx; - - /* if no flow we use the first queue, - * should be rare */ - if (p->flow != NULL) { - qid = SC_ATOMIC_GET(p->flow->autofp_tmqh_flow_qid); - if (qid == -1) { - uint16_t i = 0; - int lowest_id = 0; - TmqhFlowMode *queues = ctx->queues; - uint32_t lowest = queues[i].q->len; - for (i = 1; i < ctx->size; i++) { - if (queues[i].q->len < lowest) { - lowest = queues[i].q->len; - lowest_id = i; - } - } - qid = lowest_id; - (void) SC_ATOMIC_SET(p->flow->autofp_tmqh_flow_qid, lowest_id); - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_flows, 1); - } - } else { - qid = ctx->last++; - - if (ctx->last == ctx->size) - ctx->last = 0; - } - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_packets, 1); - - PacketQueue *q = ctx->queues[qid].q; - SCMutexLock(&q->mutex_q); - PacketEnqueue(q, p); - SCCondSignal(&q->cond_q); - SCMutexUnlock(&q->mutex_q); - - return; -} - -/** - * \brief select the queue to output based on address hash. - * - * \param tv thread vars. - * \param p packet. - */ -void TmqhOutputFlowHash(ThreadVars *tv, Packet *p) -{ - int16_t qid = 0; - - TmqhFlowCtx *ctx = (TmqhFlowCtx *)tv->outctx; - - /* if no flow we use the first queue, - * should be rare */ - if (p->flow != NULL) { - qid = SC_ATOMIC_GET(p->flow->autofp_tmqh_flow_qid); - if (qid == -1) { -#if __WORDSIZE == 64 - uint64_t addr = (uint64_t)p->flow; -#else - uint32_t addr = (uint32_t)p->flow; -#endif - addr >>= 7; - - /* we don't have to worry about possible overflow, since - * ctx->size will be lesser than 2 ** 31 for sure */ - qid = addr % ctx->size; - (void) SC_ATOMIC_SET(p->flow->autofp_tmqh_flow_qid, qid); - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_flows, 1); - } - } else { - qid = ctx->last++; - - if (ctx->last == ctx->size) - ctx->last = 0; - } - (void) SC_ATOMIC_ADD(ctx->queues[qid].total_packets, 1); - - PacketQueue *q = ctx->queues[qid].q; - SCMutexLock(&q->mutex_q); - PacketEnqueue(q, p); - SCCondSignal(&q->cond_q); - SCMutexUnlock(&q->mutex_q); - - return; -} - -#ifdef UNITTESTS - -static int TmqhOutputFlowSetupCtxTest01(void) -{ - int retval = 0; - Tmq *tmq = NULL; - TmqhFlowCtx *fctx = NULL; - - TmqResetQueues(); - - tmq = TmqCreateQueue("queue1"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("queue2"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("another"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("yetanother"); - if (tmq == NULL) - goto end; - - char *str = "queue1,queue2,another,yetanother"; - void *ctx = TmqhOutputFlowSetupCtx(str); - - if (ctx == NULL) - goto end; - - fctx = (TmqhFlowCtx *)ctx; - - if (fctx->size != 4) - goto end; - - if (fctx->queues == NULL) - goto end; - - if (fctx->queues[0].q != &trans_q[0]) - goto end; - if (fctx->queues[1].q != &trans_q[1]) - goto end; - if (fctx->queues[2].q != &trans_q[2]) - goto end; - if (fctx->queues[3].q != &trans_q[3]) - goto end; - - retval = 1; -end: - if (fctx != NULL) - TmqhOutputFlowFreeCtx(fctx); - TmqResetQueues(); - return retval; -} - -static int TmqhOutputFlowSetupCtxTest02(void) -{ - int retval = 0; - Tmq *tmq = NULL; - TmqhFlowCtx *fctx = NULL; - - TmqResetQueues(); - - tmq = TmqCreateQueue("queue1"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("queue2"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("another"); - if (tmq == NULL) - goto end; - tmq = TmqCreateQueue("yetanother"); - if (tmq == NULL) - goto end; - - char *str = "queue1"; - void *ctx = TmqhOutputFlowSetupCtx(str); - - if (ctx == NULL) - goto end; - - fctx = (TmqhFlowCtx *)ctx; - - if (fctx->size != 1) - goto end; - - if (fctx->queues == NULL) - goto end; - - if (fctx->queues[0].q != &trans_q[0]) - goto end; - - retval = 1; -end: - if (fctx != NULL) - TmqhOutputFlowFreeCtx(fctx); - TmqResetQueues(); - return retval; -} - -static int TmqhOutputFlowSetupCtxTest03(void) -{ - int retval = 0; - TmqhFlowCtx *fctx = NULL; - - TmqResetQueues(); - - char *str = "queue1,queue2,another,yetanother"; - void *ctx = TmqhOutputFlowSetupCtx(str); - - if (ctx == NULL) - goto end; - - fctx = (TmqhFlowCtx *)ctx; - - if (fctx->size != 4) - goto end; - - if (fctx->queues == NULL) - goto end; - - if (fctx->queues[0].q != &trans_q[0]) - goto end; - if (fctx->queues[1].q != &trans_q[1]) - goto end; - if (fctx->queues[2].q != &trans_q[2]) - goto end; - if (fctx->queues[3].q != &trans_q[3]) - goto end; - - retval = 1; -end: - if (fctx != NULL) - TmqhOutputFlowFreeCtx(fctx); - TmqResetQueues(); - return retval; -} - -#endif /* UNITTESTS */ - -void TmqhFlowRegisterTests(void) -{ -#ifdef UNITTESTS - UtRegisterTest("TmqhOutputFlowSetupCtxTest01", TmqhOutputFlowSetupCtxTest01, 1); - UtRegisterTest("TmqhOutputFlowSetupCtxTest02", TmqhOutputFlowSetupCtxTest02, 1); - UtRegisterTest("TmqhOutputFlowSetupCtxTest03", TmqhOutputFlowSetupCtxTest03, 1); -#endif - - return; -} |