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Honor the SecRuleEngine while filtering connections

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The SecRuleEngine has the capability to Enable, Disable or even to place the
ModSecurity in DetectionOnly mode. The SecReadStateLimit and SecWriteStateLimit
were not honoring such state, due the fact that our configuration belongs to
requests not to connections, the only struct that exists while those filters
are placed. By adding a global variable "conn_limits_filter_state" we are now
able to identify the current state of the ModSecurity, once the configuration
is loaded this variable is set and used by the connections filters.
This commit is contained in:
Felipe Zimmerle
2013-10-31 14:28:00 -07:00
parent 0037a0732a
commit a15f8813e9
3 changed files with 53 additions and 29 deletions
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26
apache2/apache2_config.c
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@@ -2144,18 +2144,30 @@ static const char *cmd_rule(cmd_parms *cmd, void *_dcfg,
static const char *cmd_rule_engine(cmd_parms *cmd, void *_dcfg, const char *p1)
{
directory_config *dcfg = (directory_config *)_dcfg;
if (dcfg == NULL) return NULL;
if (strcasecmp(p1, "on") == 0) dcfg->is_enabled = MODSEC_ENABLED;
else
if (strcasecmp(p1, "off") == 0) dcfg->is_enabled = MODSEC_DISABLED;
else
if (strcasecmp(p1, "detectiononly") == 0) {
if (strcasecmp(p1, "on") == 0)
{
dcfg->is_enabled = MODSEC_ENABLED;
}
else if (strcasecmp(p1, "off") == 0)
{
dcfg->is_enabled = MODSEC_DISABLED;
}
else if (strcasecmp(p1, "detectiononly") == 0)
{
dcfg->is_enabled = MODSEC_DETECTION_ONLY;
dcfg->of_limit_action = RESPONSE_BODY_LIMIT_ACTION_PARTIAL;
dcfg->if_limit_action = REQUEST_BODY_LIMIT_ACTION_PARTIAL;
} else
return apr_psprintf(cmd->pool, "ModSecurity: Invalid value for SecRuleEngine: %s", p1);
}
else
{
return apr_psprintf(cmd->pool, "ModSecurity: Invalid value for " \
"SecRuleEngine: %s", p1);
}
conn_limits_filter_state = dcfg->is_enabled;
return NULL;
}