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Restrict kmp string search to first 128 bytes #105

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Restrict kmp string search to first 128 bytes #105

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5 changes: 3 additions & 2 deletions source/firewall/firewall.c
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* If not stated otherwise in this file or this component's Licenses.txt file the

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Source code with 'BSD-Intel' license found in local file 'source/firewall/firewall.c' (Match: rdkb/components/opensource/ccsp/Utopia/rdkb/components/opensource/ccsp/Utopia/1, 13184 lines, url: https://code.rdkcentral.com/r/plugins/gitiles/rdkb/components/opensource/ccsp/Utopia/+archive/RDKB-RELEASE-TEST-DUNFELL-1.tar.gz, file: source/firewall/firewall.c)
* following copyright and licenses apply:
*
* Copyright 2015 RDK Management
Expand Down Expand Up @@ -9075,6 +9075,7 @@
{
int rc;
char query[MAX_QUERY];
int kmp_filter_bytes = 128; //filter upper limit in bytes
FIREWALL_DEBUG("Entering do_parcon_mgmt_site_keywd\n");
#ifdef CONFIG_CISCO_PARCON_WALLED_GARDEN
int isHttps = 0;
Expand Down Expand Up @@ -9313,7 +9314,7 @@
{
// consider the case that user input whole url.
if(strstr(query, "://") != 0) {
fprintf(fp, "-A lan2wan_pc_site -m string --string \"%s\" --algo kmp --icase -j %s\n", strstr(query, "://") + 3, drop_log);
fprintf(fp, "-A lan2wan_pc_site -m string --string \"%s\" --algo kmp --to %d --icase -j %s\n", strstr(query, "://") + 3, kmp_filter_bytes, drop_log);
#if defined(_HUB4_PRODUCT_REQ_) || defined (_RDKB_GLOBAL_PRODUCT_REQ_)
#if defined (_RDKB_GLOBAL_PRODUCT_REQ_)
if( 0 == strncmp( devicePartnerId, "sky-", 4 ) )
Expand All @@ -9325,7 +9326,7 @@
}
#endif
} else {
fprintf(fp, "-A lan2wan_pc_site -m string --string \"%s\" --algo kmp --icase -j %s\n", query, drop_log);
fprintf(fp, "-A lan2wan_pc_site -m string --string \"%s\" --algo kmp --to %d --icase -j %s\n", query, kmp_filter_bytes, drop_log);
#if defined(_HUB4_PRODUCT_REQ_) || defined (_RDKB_GLOBAL_PRODUCT_REQ_)
#if defined (_RDKB_GLOBAL_PRODUCT_REQ_)
if( 0 == strncmp( devicePartnerId, "sky-", 4 ) )
Expand Down
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