Fill in basic network statshalibut_7.99.1halibut/7.99.17.99.1

Per request from the front-end, provide IP statistics
as found in /proc/net/netstat.

Bug-AGL: SPEC-2403
Change-Id: I98214e0c187546f3c2c4a338d09357582d51b87f
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/binding/task-manager-binding.c b/binding/task-manager-binding.c
index 5a2bc78..6b4c80c 100644
--- a/binding/task-manager-binding.c
+++ b/binding/task-manager-binding.c
@@ -204,6 +204,53 @@ void get_load_avg(struct afb_req request)
 	afb_req_success(request, ret_json, NULL);
 }
 
+void get_netstat(struct afb_req request)
+{
+	struct json_object *ret_json, *json_obj;
+	char names_str[1024], values_str[1024];
+	char *pnames = names_str, *pvalues = values_str;
+
+	FILE *fnetstat = fopen("/proc/net/netstat", "r");
+
+	if (fnetstat == NULL) {
+		afb_req_fail(request, "Failed", "Error processing arguments.");
+		return;
+	}
+
+	do {
+		pnames = fgets(pnames, 1024, fnetstat);
+	} while (pnames && !feof(fnetstat) && strncmp(pnames, "IpExt: ", 7));
+	if (feof(fnetstat)) {
+		fclose(fnetstat);
+		afb_req_fail(request, "Failed", "Parse error");
+		return;
+	}
+	pvalues = fgets(pvalues, 1024, fnetstat);
+	fclose(fnetstat);
+	if (pvalues == NULL) {
+		afb_req_fail(request, "Failed", "Parse error");
+		return;
+	}
+
+	ret_json = json_object_new_object();
+	json_obj = json_object_new_object();
+
+	pnames += 7; pvalues += 7;
+	while (pnames && pvalues) {
+		char *name = strsep(&pnames, " ");
+		char *value = strsep(&pvalues, " ");
+
+		if (name && value) {
+			AFB_REQ_INFO(request, "adding %s[%s]\n", name, value);
+			json_object_object_add(json_obj, name, json_object_new_int(atoi(value)));
+		}
+	}
+	json_object_object_add(ret_json, "msgType", json_object_new_string("netStatInfo"));
+	json_object_object_add(ret_json, "netstat", json_obj);
+
+	afb_req_success(request, ret_json, NULL);
+}
+
 int fill_pstat(proc_t *proc_info, struct pstat *pstat_values)
 {
 	long unsigned int cpu_time[9];
@@ -285,6 +332,13 @@ static const struct afb_verb_v2 _afb_verbs_v2_taskmanager[] = {
 		.info = "Get exta info about system load average",
 		.session = AFB_SESSION_NONE_V2
 	},
+	{
+		.verb = "get_netstat",
+		.callback = get_netstat,
+		.auth = NULL,
+		.info = "Get network (IP) statistics",
+		.session = AFB_SESSION_NONE_V2
+	},
 };