summaryrefslogtreecommitdiff
path: root/src/mod_evasive.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mod_evasive.c')
-rw-r--r--src/mod_evasive.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/src/mod_evasive.c b/src/mod_evasive.c
index b9d19ca..3415953 100644
--- a/src/mod_evasive.c
+++ b/src/mod_evasive.c
@@ -31,68 +31,68 @@ typedef struct {
typedef struct {
PLUGIN_DATA;
-
+
plugin_config **config_storage;
-
- plugin_config conf;
+
+ plugin_config conf;
} plugin_data;
INIT_FUNC(mod_evasive_init) {
plugin_data *p;
-
+
p = calloc(1, sizeof(*p));
-
+
return p;
}
FREE_FUNC(mod_evasive_free) {
plugin_data *p = p_d;
-
+
UNUSED(srv);
if (!p) return HANDLER_GO_ON;
-
+
if (p->config_storage) {
size_t i;
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s = p->config_storage[i];
-
+
free(s);
}
free(p->config_storage);
}
-
+
free(p);
-
+
return HANDLER_GO_ON;
}
SETDEFAULTS_FUNC(mod_evasive_set_defaults) {
plugin_data *p = p_d;
size_t i = 0;
-
- config_values_t cv[] = {
+
+ config_values_t cv[] = {
{ "evasive.max-conns-per-ip", NULL, T_CONFIG_SHORT, T_CONFIG_SCOPE_CONNECTION },
{ NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
};
-
+
p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));
-
+
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s;
-
+
s = calloc(1, sizeof(plugin_config));
s->max_conns = 0;
-
+
cv[0].destination = &(s->max_conns);
-
+
p->config_storage[i] = s;
-
+
if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) {
return HANDLER_ERROR;
}
}
-
+
return HANDLER_GO_ON;
}
@@ -103,25 +103,25 @@ static int mod_evasive_patch_connection(server *srv, connection *con, plugin_dat
plugin_config *s = p->config_storage[0];
PATCH(max_conns);
-
+
/* skip the first, the global context */
for (i = 1; i < srv->config_context->used; i++) {
data_config *dc = (data_config *)srv->config_context->data[i];
s = p->config_storage[i];
-
+
/* condition didn't match */
if (!config_check_cond(srv, con, dc)) continue;
-
+
/* merge config */
for (j = 0; j < dc->value->used; j++) {
data_unset *du = dc->value->data[j];
-
+
if (buffer_is_equal_string(du->key, CONST_STR_LEN("evasive.max-conns-per-ip"))) {
PATCH(max_conns);
}
}
}
-
+
return 0;
}
#undef PATCH
@@ -132,10 +132,10 @@ URIHANDLER_FUNC(mod_evasive_uri_handler) {
size_t j;
if (con->uri.path->used == 0) return HANDLER_GO_ON;
-
+
mod_evasive_patch_connection(srv, con, p);
-
- /* no limit set, nothing to block */
+
+ /* no limit set, nothing to block */
if (p->conf.max_conns == 0) return HANDLER_GO_ON;
for (j = 0; j < srv->conns->used; j++) {
@@ -147,7 +147,7 @@ URIHANDLER_FUNC(mod_evasive_uri_handler) {
if (c->dst_addr.ipv4.sin_addr.s_addr == con->dst_addr.ipv4.sin_addr.s_addr &&
c->state > CON_STATE_REQUEST_END) {
conns_by_ip++;
-
+
if (conns_by_ip > p->conf.max_conns) {
log_error_write(srv, __FILE__, __LINE__, "ss",
inet_ntop_cache_get_ip(srv, &(con->dst_addr)),
@@ -158,7 +158,7 @@ URIHANDLER_FUNC(mod_evasive_uri_handler) {
}
}
}
-
+
return HANDLER_GO_ON;
}
@@ -166,13 +166,13 @@ URIHANDLER_FUNC(mod_evasive_uri_handler) {
int mod_evasive_plugin_init(plugin *p) {
p->version = LIGHTTPD_VERSION_ID;
p->name = buffer_init_string("evasive");
-
+
p->init = mod_evasive_init;
p->set_defaults = mod_evasive_set_defaults;
p->handle_uri_clean = mod_evasive_uri_handler;
p->cleanup = mod_evasive_free;
-
+
p->data = NULL;
-
+
return 0;
}