+static struct policy policies[RTE_MAX_LCORE];
+
+#ifdef USE_JANSSON
+
+union PFID {
+ struct rte_ether_addr addr;
+ uint64_t pfid;
+};
+
+static int
+str_to_ether_addr(const char *a, struct rte_ether_addr *ether_addr)
+{
+ int i;
+ char *end;
+ unsigned long o[RTE_ETHER_ADDR_LEN];
+
+ i = 0;
+ do {
+ errno = 0;
+ o[i] = strtoul(a, &end, 16);
+ if (errno != 0 || end == a || (end[0] != ':' && end[0] != 0))
+ return -1;
+ a = end + 1;
+ } while (++i != RTE_DIM(o) / sizeof(o[0]) && end[0] != 0);
+
+ /* Junk at the end of line */
+ if (end[0] != 0)
+ return -1;
+
+ /* Support the format XX:XX:XX:XX:XX:XX */
+ if (i == RTE_ETHER_ADDR_LEN) {
+ while (i-- != 0) {
+ if (o[i] > UINT8_MAX)
+ return -1;
+ ether_addr->addr_bytes[i] = (uint8_t)o[i];
+ }
+ /* Support the format XXXX:XXXX:XXXX */
+ } else if (i == RTE_ETHER_ADDR_LEN / 2) {
+ while (i-- != 0) {
+ if (o[i] > UINT16_MAX)
+ return -1;
+ ether_addr->addr_bytes[i * 2] =
+ (uint8_t)(o[i] >> 8);
+ ether_addr->addr_bytes[i * 2 + 1] =
+ (uint8_t)(o[i] & 0xff);
+ }
+ /* unknown format */
+ } else
+ return -1;
+
+ return 0;
+}
+
+static int
+set_policy_mac(struct channel_packet *pkt, int idx, char *mac)
+{
+ union PFID pfid;
+ int ret;
+
+ /* Use port MAC address as the vfid */
+ ret = str_to_ether_addr(mac, &pfid.addr);
+
+ if (ret != 0) {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Invalid mac address received in JSON\n");
+ pkt->vfid[idx] = 0;
+ return -1;
+ }
+
+ printf("Received MAC Address: %02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 ":"
+ "%02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 "\n",
+ pfid.addr.addr_bytes[0], pfid.addr.addr_bytes[1],
+ pfid.addr.addr_bytes[2], pfid.addr.addr_bytes[3],
+ pfid.addr.addr_bytes[4], pfid.addr.addr_bytes[5]);
+
+ pkt->vfid[idx] = pfid.pfid;
+ return 0;
+}
+
+static char*
+get_resource_name_from_chn_path(const char *channel_path)
+{
+ char *substr = NULL;
+
+ substr = strstr(channel_path, CHANNEL_MGR_FIFO_PATTERN_NAME);
+
+ return substr;
+}
+
+static int
+get_resource_id_from_vmname(const char *vm_name)
+{
+ int result = -1;
+ int off = 0;
+
+ if (vm_name == NULL)
+ return -1;
+
+ while (vm_name[off] != '\0') {
+ if (isdigit(vm_name[off]))
+ break;
+ off++;
+ }
+ result = atoi(&vm_name[off]);
+ if ((result == 0) && (vm_name[off] != '0'))
+ return -1;
+
+ return result;
+}
+
+static int
+parse_json_to_pkt(json_t *element, struct channel_packet *pkt,
+ const char *vm_name)
+{
+ const char *key;
+ json_t *value;
+ int ret;
+ int resource_id;
+
+ memset(pkt, 0, sizeof(struct channel_packet));
+
+ pkt->nb_mac_to_monitor = 0;
+ pkt->t_boost_status.tbEnabled = false;
+ pkt->workload = LOW;
+ pkt->policy_to_use = TIME;
+ pkt->command = PKT_POLICY;
+ pkt->core_type = CORE_TYPE_PHYSICAL;
+
+ if (vm_name == NULL) {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "vm_name is NULL, request rejected !\n");
+ return -1;
+ }
+
+ json_object_foreach(element, key, value) {
+ if (!strcmp(key, "policy")) {
+ /* Recurse in to get the contents of profile */
+ ret = parse_json_to_pkt(value, pkt, vm_name);
+ if (ret)
+ return ret;
+ } else if (!strcmp(key, "instruction")) {
+ /* Recurse in to get the contents of instruction */
+ ret = parse_json_to_pkt(value, pkt, vm_name);
+ if (ret)
+ return ret;
+ } else if (!strcmp(key, "command")) {
+ char command[32];
+ strlcpy(command, json_string_value(value), 32);
+ if (!strcmp(command, "power")) {
+ pkt->command = CPU_POWER;
+ } else if (!strcmp(command, "create")) {
+ pkt->command = PKT_POLICY;
+ } else if (!strcmp(command, "destroy")) {
+ pkt->command = PKT_POLICY_REMOVE;
+ } else {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Invalid command received in JSON\n");
+ return -1;
+ }
+ } else if (!strcmp(key, "policy_type")) {
+ char command[32];
+ strlcpy(command, json_string_value(value), 32);
+ if (!strcmp(command, "TIME")) {
+ pkt->policy_to_use = TIME;
+ } else if (!strcmp(command, "TRAFFIC")) {
+ pkt->policy_to_use = TRAFFIC;
+ } else if (!strcmp(command, "WORKLOAD")) {
+ pkt->policy_to_use = WORKLOAD;
+ } else if (!strcmp(command, "BRANCH_RATIO")) {
+ pkt->policy_to_use = BRANCH_RATIO;
+ } else {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Wrong policy_type received in JSON\n");
+ return -1;
+ }
+ } else if (!strcmp(key, "workload")) {
+ char command[32];
+ strlcpy(command, json_string_value(value), 32);
+ if (!strcmp(command, "HIGH")) {
+ pkt->workload = HIGH;
+ } else if (!strcmp(command, "MEDIUM")) {
+ pkt->workload = MEDIUM;
+ } else if (!strcmp(command, "LOW")) {
+ pkt->workload = LOW;
+ } else {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Wrong workload received in JSON\n");
+ return -1;
+ }
+ } else if (!strcmp(key, "busy_hours")) {
+ unsigned int i;
+ size_t size = json_array_size(value);
+
+ for (i = 0; i < size; i++) {
+ int hour = (int)json_integer_value(
+ json_array_get(value, i));
+ pkt->timer_policy.busy_hours[i] = hour;
+ }
+ } else if (!strcmp(key, "quiet_hours")) {
+ unsigned int i;
+ size_t size = json_array_size(value);
+
+ for (i = 0; i < size; i++) {
+ int hour = (int)json_integer_value(
+ json_array_get(value, i));
+ pkt->timer_policy.quiet_hours[i] = hour;
+ }
+ } else if (!strcmp(key, "mac_list")) {
+ unsigned int i;
+ size_t size = json_array_size(value);
+
+ for (i = 0; i < size; i++) {
+ char mac[32];
+ strlcpy(mac,
+ json_string_value(json_array_get(value, i)),
+ 32);
+ set_policy_mac(pkt, i, mac);
+ }
+ pkt->nb_mac_to_monitor = size;
+ } else if (!strcmp(key, "avg_packet_thresh")) {
+ pkt->traffic_policy.avg_max_packet_thresh =
+ (uint32_t)json_integer_value(value);
+ } else if (!strcmp(key, "max_packet_thresh")) {
+ pkt->traffic_policy.max_max_packet_thresh =
+ (uint32_t)json_integer_value(value);
+ } else if (!strcmp(key, "unit")) {
+ char unit[32];
+ strlcpy(unit, json_string_value(value), 32);
+ if (!strcmp(unit, "SCALE_UP")) {
+ pkt->unit = CPU_POWER_SCALE_UP;
+ } else if (!strcmp(unit, "SCALE_DOWN")) {
+ pkt->unit = CPU_POWER_SCALE_DOWN;
+ } else if (!strcmp(unit, "SCALE_MAX")) {
+ pkt->unit = CPU_POWER_SCALE_MAX;
+ } else if (!strcmp(unit, "SCALE_MIN")) {
+ pkt->unit = CPU_POWER_SCALE_MIN;
+ } else if (!strcmp(unit, "ENABLE_TURBO")) {
+ pkt->unit = CPU_POWER_ENABLE_TURBO;
+ } else if (!strcmp(unit, "DISABLE_TURBO")) {
+ pkt->unit = CPU_POWER_DISABLE_TURBO;
+ } else {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Invalid command received in JSON\n");
+ return -1;
+ }
+ } else {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Unknown key received in JSON string: %s\n",
+ key);
+ }
+
+ resource_id = get_resource_id_from_vmname(vm_name);
+ if (resource_id < 0) {
+ RTE_LOG(ERR, CHANNEL_MONITOR,
+ "Could not get resource_id from vm_name:%s\n",
+ vm_name);
+ return -1;
+ }
+ strlcpy(pkt->vm_name, vm_name, VM_MAX_NAME_SZ);
+ pkt->resource_id = resource_id;
+ }
+ return 0;
+}
+#endif