ipvsadm: add version info

Signed-off-by: ywc689 <[email protected]>

include/global_data.h

@@ -70,12 +70,15 @@ extern char *dpvs_conf_file;
 extern char *dpvs_pid_file;
 extern char *dpvs_ipc_file;
 
+extern unsigned int g_version;
 extern bool g_kni_enabled;
 
 #ifdef CONFIG_DPVS_PDUMP
 extern bool g_dpvs_pdump;
 #endif
 
+int version_parse(const char *strver);
+
 int global_data_init(void);
 int global_data_term(void);
 

src/global_data.c

@@ -16,11 +16,13 @@
  *
  */
 
+#include <string.h>
 #include <rte_cycles.h>
 #include "global_data.h"
 
 RTE_DEFINE_PER_LCORE(uint32_t, g_dpvs_poll_tick);
 
+unsigned int g_version;
 uint64_t g_cycles_per_sec;
 
 dpvs_lcore_role_t g_lcore_role[DPVS_MAX_LCORE];
@@ -51,6 +53,41 @@ int global_data_init(void)
     return EDPVS_OK;
 }
 
+int version_parse(const char *strver)
+{
+    int i, j = 0;
+    size_t len;
+    unsigned int version = 0, mask = 0xFF;
+    char *sver;
+
+    if (strver[0] == 'v' || strver[0] == 'V') {
+        sver = strdup(&strver[1]);
+        len = strlen(&strver[1]);
+    } else {
+        sver = strdup(strver);
+        len = strlen(strver);
+    }
+
+    if (unlikely(sver == NULL))
+        return 0;
+
+    for (i = 0; i < len && mask < 0xFFFFFF; i++) {
+        if ('.' == sver[i] || '-' == sver[i]) {
+            sver[i] = '\0';
+            version = ((version << 8) | atoi(&sver[j])) & mask;
+            mask |= mask << 8;
+            j = i + 1;
+            continue;
+        }
+        if (!isdigit(sver[i]))
+            break;
+    }
+    version = ((version << 8) | atoi(&sver[j])) & mask;
+
+    free(sver);
+    return version;
+}
+
 int global_data_term(void)
 {
     return EDPVS_OK;

src/ipvs/ip_vs_service.c

@@ -1177,7 +1177,7 @@ static int dp_vs_service_get(sockoptid_t opt, const void *user, size_t len, void
                 info = rte_zmalloc("info", sizeof(struct dp_vs_getinfo), 0);
                 if (unlikely(NULL == info))
                     return EDPVS_NOMEM;
-                info->version = 0;
+                info->version = g_version;
                 info->size = 0;
                 info->num_services = rte_atomic16_read(&dp_vs_num_services[cid]);
                 info->num_lcores = g_slave_lcore_num;

src/main.c

@@ -273,6 +273,8 @@ static int parse_app_args(int argc, char **argv)
     if (!dpvs_ipc_file)
         dpvs_ipc_file="/var/run/dpvs.ipc";
 
+    g_version = version_parse(DPVS_VERSION);
+
     return ret;
 }