[spp] [PATCH 29/57] spp_vf: replace unsupported jansson api
x-fn-spp at sl.ntt-tx.co.jp
x-fn-spp at sl.ntt-tx.co.jp
Thu Dec 28 05:55:36 CET 2017
From: Hiroyuki Nakamura <nakamura.hioryuki at po.ntt-tx.co.jp>
* Stop using the json_path_get function and replace it with our own
spp_config_get_path_obj function.
* The json_path_get function is only available at branch of
Jansson project, and it can not be provided in most of
the pkgs(deb,rpm). This change made
for build convenience.
Signed-off-by: Kentaro Watanabe <watanabe.kentaro.z01 at as.ntt-tx.co.jp>
Signed-off-by: Yasufum Ogawa <ogawa.yasufumi at lab.ntt.co.jp>
---
src/vf/spp_config.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++-------
src/vf/spp_config.h | 9 +++++++
2 files changed, 68 insertions(+), 9 deletions(-)
diff --git a/src/vf/spp_config.c b/src/vf/spp_config.c
index 4ad4f87..6d8e380 100644
--- a/src/vf/spp_config.c
+++ b/src/vf/spp_config.c
@@ -25,13 +25,63 @@
#define JSONPATH_TX_TABLE "$.tx_port_table"
/*
+ * Instead of json_path_get
+ */
+json_t *
+spp_config_get_path_obj(const json_t *json, const char *path)
+{
+ const json_t *obj, *array_obj;
+ json_t *new_obj = NULL;
+ char buf[SPP_CONFIG_PATH_LEN];
+ char *str, *token, *bracket, *endptr;
+ int index = 0;
+
+ if (unlikely(path[0] != '$') || unlikely(path[1] != '.') ||
+ unlikely(strlen(path) >= SPP_CONFIG_PATH_LEN))
+ return NULL;
+
+ strcpy(buf, path);
+ obj = json;
+ str = buf+1;
+ while(str != NULL) {
+ token = str+1;
+ str = strpbrk(token, ".");
+ if (str != NULL)
+ *str = '\0';
+
+ bracket = strpbrk(token, "[");
+ if (bracket != NULL)
+ *bracket = '\0';
+
+ new_obj = json_object_get(obj, token);
+ if (new_obj == NULL)
+ return NULL;
+
+ if (bracket != NULL) {
+ index = strtol(bracket+1, &endptr, 0);
+ if (unlikely(str == endptr) || unlikely(*endptr != ']'))
+ return NULL;
+
+ array_obj = new_obj;
+ new_obj = json_array_get(array_obj, index);
+ if (new_obj == NULL)
+ return NULL;
+ }
+
+ obj = new_obj;
+ }
+
+ return new_obj;
+}
+
+/*
* Get integer data from config
*/
static int
config_get_int_value(const json_t *obj, const char *path, int *value)
{
/* 指定パラメータのJsonオブジェクト取得 */
- json_t *tmp_obj = json_path_get(obj, path);
+ json_t *tmp_obj = spp_config_get_path_obj(obj, path);
if (unlikely(tmp_obj == NULL)) {
/* 必須でないデータを取得する場合を考慮し、DEBUGログとする。 */
RTE_LOG(DEBUG, APP, "No parameter. (path = %s)\n", path);
@@ -58,7 +108,7 @@ static int
config_get_str_value(const json_t *obj, const char *path, char *value)
{
/* 指定パラメータのJsonオブジェクト取得 */
- json_t *tmp_obj = json_path_get(obj, path);
+ json_t *tmp_obj = spp_config_get_path_obj(obj, path);
if (unlikely(tmp_obj == NULL)) {
RTE_LOG(DEBUG, APP, "No parameter. (path = %s)\n", path);
return -1;
@@ -204,7 +254,7 @@ config_load_classifier_table(const json_t *obj,
struct spp_config_classifier_table *classifier_table)
{
/* classifier_table用オブジェクト取得 */
- json_t *classifier_obj = json_path_get(obj, JSONPATH_CLASSIFIER_TABLE);
+ json_t *classifier_obj = spp_config_get_path_obj(obj, JSONPATH_CLASSIFIER_TABLE);
if (unlikely(classifier_obj == NULL)) {
RTE_LOG(INFO, APP, "No classifier table.\n");
return 0;
@@ -219,7 +269,7 @@ config_load_classifier_table(const json_t *obj,
}
/* table用オブジェクト取得 */
- json_t *array_obj = json_path_get(classifier_obj, JSONPATH_TABLE);
+ json_t *array_obj = spp_config_get_path_obj(classifier_obj, JSONPATH_TABLE);
if (unlikely(!array_obj)) {
RTE_LOG(ERR, APP, "Json object get failed. (path = %s)\n",
JSONPATH_TABLE);
@@ -338,7 +388,7 @@ config_set_rx_port(enum spp_core_type type, json_t *obj,
if (type == SPP_CONFIG_MERGE) {
/* Merge */
/* 受信ポート用オブジェクト取得 */
- json_t *array_obj = json_path_get(obj, JSONPATH_RX_PORT);
+ json_t *array_obj = spp_config_get_path_obj(obj, JSONPATH_RX_PORT);
if (unlikely(!array_obj)) {
RTE_LOG(ERR, APP, "Json object get failed. (path = %s, route = merge)\n",
JSONPATH_RX_PORT);
@@ -454,7 +504,7 @@ config_set_tx_port(enum spp_core_type type, json_t *obj,
}
} else {
/* Classifier */
- json_t *table_obj = json_path_get(obj, JSONPATH_TX_TABLE);
+ json_t *table_obj = spp_config_get_path_obj(obj, JSONPATH_TX_TABLE);
if (unlikely(table_obj != NULL)) {
/* Classifier Tableから取得 */
functions->num_tx_port = classifier_table->num_table;
@@ -473,7 +523,7 @@ config_set_tx_port(enum spp_core_type type, json_t *obj,
{
/* tx_portパラメータより取得 */
/* 送信ポート用オブジェクト取得 */
- json_t *array_obj = json_path_get(obj, JSONPATH_TX_PORT);
+ json_t *array_obj = spp_config_get_path_obj(obj, JSONPATH_TX_PORT);
if (unlikely(array_obj == NULL)) {
RTE_LOG(ERR, APP, "Json object get failed. (path = %s, route = classifier)\n",
JSONPATH_TX_PORT);
@@ -545,7 +595,7 @@ config_load_proc_info(const json_t *obj, int node_id, struct spp_config_area *co
struct spp_config_classifier_table *classifier_table = &config->classifier_table;
/* proc_table用オブジェクト取得 */
- json_t *proc_table_obj = json_path_get(obj, JSONPATH_PROC_TABLE);
+ json_t *proc_table_obj = spp_config_get_path_obj(obj, JSONPATH_PROC_TABLE);
if (unlikely(proc_table_obj == NULL)) {
RTE_LOG(ERR, APP, "Json object get failed. (path = %s)\n",
JSONPATH_PROC_TABLE);
@@ -599,7 +649,7 @@ config_load_proc_info(const json_t *obj, int node_id, struct spp_config_area *co
}
/* functions用オブジェクト取得 */
- json_t *array_obj = json_path_get(proc_obj, JSONPATH_FUNCTIONS);
+ json_t *array_obj = spp_config_get_path_obj(proc_obj, JSONPATH_FUNCTIONS);
if (unlikely(!array_obj)) {
RTE_LOG(ERR, APP, "Json object get failed. (path = %s)\n",
JSONPATH_FUNCTIONS);
diff --git a/src/vf/spp_config.h b/src/vf/spp_config.h
index 37414cf..7945807 100644
--- a/src/vf/spp_config.h
+++ b/src/vf/spp_config.h
@@ -1,6 +1,7 @@
#ifndef __SPP_CONFIG_H__
#define __SPP_CONFIG_H__
+#include <jansson.h>
#include "common.h"
#define SPP_CONFIG_FILE_PATH "/usr/local/etc/spp/spp.json"
@@ -12,6 +13,7 @@
#define SPP_CONFIG_STR_LEN 32
#define SPP_CONFIG_MAC_TABLE_MAX 16
#define SPP_CONFIG_CORE_MAX 64
+#define SPP_CONFIG_PATH_LEN 1024
/*
* Process type for each CORE
@@ -81,6 +83,13 @@ struct spp_config_area {
};
/*
+ * Instead of json_path_get
+ * OK : Json object address
+ * NG : NULL
+ */
+json_t *spp_config_get_path_obj(const json_t *json, const char *path);
+
+/*
* Change mac address string to int64
* OK : int64 that store mac address
* NG : -1
--
1.9.1
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