From: Victor Julien <victor@inliniac.net>
Date: Fri, 22 Mar 2019 19:18:44 +0000 (+0100)
Subject: mpm/hs: track maxdepth
X-Git-Tag: suricata-5.0.0-beta1~110
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7cea1e4181dadb7527eed31b403d11ebdbc15a70;p=thirdparty%2Fsuricata.git

mpm/hs: track maxdepth
---

diff --git a/src/util-mpm-hs.c b/src/util-mpm-hs.c
index eca73f7cba..194a7bbd78 100644
--- a/src/util-mpm-hs.c
+++ b/src/util-mpm-hs.c
@@ -313,6 +313,17 @@ static int SCHSAddPattern(MpmCtx *mpm_ctx, uint8_t *pat, uint16_t patlen,
 
         mpm_ctx->pattern_cnt++;
 
+        if (!(mpm_ctx->flags & MPMCTX_FLAGS_NODEPTH)) {
+            if (depth) {
+                mpm_ctx->maxdepth = MAX(mpm_ctx->maxdepth, depth);
+                SCLogDebug("%p: depth %u max %u", mpm_ctx, depth, mpm_ctx->maxdepth);
+            } else {
+                mpm_ctx->flags |= MPMCTX_FLAGS_NODEPTH;
+                mpm_ctx->maxdepth = 0;
+                SCLogDebug("%p: alas, no depth for us", mpm_ctx);
+            }
+        }
+
         if (mpm_ctx->maxlen < patlen)
             mpm_ctx->maxlen = patlen;