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#include <sys/ioctl.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <tfe_kafka_logger.h>
// return INADDR_NONE if error occur
static unsigned int get_ip_by_eth_name(const char *ifname)
{
int sockfd = -1;
struct ifreq ifr;
unsigned int ip;
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
if (-1 == sockfd)
{
goto error;
}
strcpy(ifr.ifr_name, ifname);
if (ioctl(sockfd, SIOCGIFADDR, &ifr) == -1)
{
goto error;
}
close(sockfd);
ip = ((struct sockaddr_in *)&(ifr.ifr_addr))->sin_addr.s_addr;
return ip;
error:
if (sockfd > 0)
close(sockfd);
return INADDR_NONE;
}
static rd_kafka_t *create_kafka_handle(const char *brokerlist, const char *sasl_username, const char *sasl_passwd, void *local_logger)
{
int ret;
char kafka_errstr[1024] = {0};
rd_kafka_t *handle = NULL;
rd_kafka_conf_t *rconf = NULL;
rconf = rd_kafka_conf_new();
ret = rd_kafka_conf_set(rconf, "queue.buffering.max.messages", "1000000", kafka_errstr, sizeof(kafka_errstr));
if (ret != RD_KAFKA_CONF_OK)
{
TFE_LOG_ERROR(local_logger, "Error to set kafka \"queue.buffering.max.messages\", %s.", kafka_errstr);
rd_kafka_conf_destroy(rconf);
return NULL;
}
ret = rd_kafka_conf_set(rconf, "topic.metadata.refresh.interval.ms", "600000", kafka_errstr, sizeof(kafka_errstr));
if (ret != RD_KAFKA_CONF_OK)
{
TFE_LOG_ERROR(local_logger, "Error to set kafka \"topic.metadata.refresh.interval.ms\", %s.", kafka_errstr);
rd_kafka_conf_destroy(rconf);
return NULL;
}
ret = rd_kafka_conf_set(rconf, "security.protocol", "plaintext", kafka_errstr, sizeof(kafka_errstr));
if (ret != RD_KAFKA_CONF_OK)
{
TFE_LOG_ERROR(local_logger, "Error to set kafka \"security.protocol\", %s.", kafka_errstr);
rd_kafka_conf_destroy(rconf);
return NULL;
}
if (strlen(sasl_username) > 0 && strlen(sasl_passwd) > 0)
{
rd_kafka_conf_set(rconf, "security.protocol", "sasl_plaintext", kafka_errstr, sizeof(kafka_errstr));
rd_kafka_conf_set(rconf, "sasl.mechanisms", "PLAIN", kafka_errstr, sizeof(kafka_errstr));
ret = rd_kafka_conf_set(rconf, "sasl.username", sasl_username, kafka_errstr, sizeof(kafka_errstr));
if (ret != RD_KAFKA_CONF_OK)
{
TFE_LOG_ERROR(local_logger, "Error to set kafka \"sasl.username\", %s.", kafka_errstr);
rd_kafka_conf_destroy(rconf);
return NULL;
}
ret = rd_kafka_conf_set(rconf, "sasl.password", sasl_passwd, kafka_errstr, sizeof(kafka_errstr));
if (ret != RD_KAFKA_CONF_OK)
{
TFE_LOG_ERROR(local_logger, "Error to set kafka \"sasl.password\", %s.", kafka_errstr);
rd_kafka_conf_destroy(rconf);
return NULL;
}
}
//The conf object is freed by this function and must not be used or destroyed by the application sub-sequently.
handle = rd_kafka_new(RD_KAFKA_PRODUCER, rconf, kafka_errstr, sizeof(kafka_errstr));
rconf = NULL;
if (handle == NULL)
{
TFE_LOG_ERROR(local_logger, "Error to new kafka, %s.", kafka_errstr);
return NULL;
}
if (rd_kafka_brokers_add(handle, brokerlist) == 0)
{
TFE_LOG_ERROR(local_logger, "Error to add kakfa bokers.");
rd_kafka_destroy(handle);
return NULL;
}
return handle;
}
int tfe_kafka_logger_topic_new(tfe_kafka_logger_t *logger, const char *topic_name, void *local_logger)
{
strncpy(logger->topic_name[TOPIC_BUCKET], topic_name, sizeof(logger->topic_name[TOPIC_BUCKET])-1);
logger->kafka_topic[TOPIC_BUCKET] = rd_kafka_topic_new(logger->kafka_handle, topic_name, NULL);
if (logger->kafka_topic[TOPIC_BUCKET] == NULL)
{
TFE_LOG_ERROR(local_logger, "Error to creat kafka topic: %s.", topic_name);
rd_kafka_destroy(logger->kafka_handle);
free(logger);
return 0;
}
return 1;
}
tfe_kafka_logger_t *tfe_kafka_logger_create(int enable, const char *nic_name, const char *brokerlist, const char *topic_name, const char *sasl_username, const char *sasl_passwd, void *local_logger)
{
char *override_sled_ip=NULL;
tfe_kafka_logger_t *logger = (tfe_kafka_logger_t *)calloc(1, sizeof(tfe_kafka_logger_t));
if (!logger)
return NULL;
logger->enable = enable;
if (!logger->enable)
return logger;
override_sled_ip = getenv("OVERRIDE_SLED_IP");
if(override_sled_ip != NULL)
{
strncpy(logger->local_ip_str, override_sled_ip, sizeof(logger->local_ip_str)-1);
goto create_kafka;
}
logger->local_ip_num = get_ip_by_eth_name(nic_name);
if (logger->local_ip_num == INADDR_NONE)
{
TFE_LOG_ERROR(local_logger, "Error to get NIC_NAME: %s.", nic_name);
free(logger);
return NULL;
}
inet_ntop(AF_INET, &(logger->local_ip_num), logger->local_ip_str, sizeof(logger->local_ip_str));
create_kafka:
strncpy(logger->broker_list, brokerlist, sizeof(logger->broker_list)-1);
logger->kafka_handle = create_kafka_handle(logger->broker_list, sasl_username, sasl_passwd, local_logger);
if (logger->kafka_handle == NULL)
{
TFE_LOG_ERROR(local_logger, "Error to creat kafka handler with brokerlist: %s.", logger->broker_list);
free(logger);
return NULL;
}
strncpy(logger->topic_name[TOPIC_LOGGER], topic_name, sizeof(logger->topic_name[TOPIC_LOGGER])-1);
logger->kafka_topic[TOPIC_LOGGER] = rd_kafka_topic_new(logger->kafka_handle, topic_name, NULL);
if (logger->kafka_topic[TOPIC_LOGGER] == NULL)
{
TFE_LOG_ERROR(local_logger, "Error to creat kafka topic: %s.", logger->topic_name[TOPIC_LOGGER]);
rd_kafka_destroy(logger->kafka_handle);
free(logger);
return NULL;
}
return logger;
}
void tfe_kafka_logger_destroy(tfe_kafka_logger_t *logger)
{
if (logger)
{
if (logger->kafka_handle)
rd_kafka_destroy(logger->kafka_handle);
if (logger->kafka_topic[TOPIC_LOGGER])
rd_kafka_topic_destroy(logger->kafka_topic[TOPIC_LOGGER]);
if (logger->kafka_topic[TOPIC_BUCKET])
rd_kafka_topic_destroy(logger->kafka_topic[TOPIC_BUCKET]);
free(logger);
logger = NULL;
}
}
int tfe_kafka_logger_send(tfe_kafka_logger_t *logger, int topic_id, const char *data, int len)
{
if (logger && logger->enable)
return rd_kafka_produce(logger->kafka_topic[topic_id], RD_KAFKA_PARTITION_UA, RD_KAFKA_MSG_F_COPY, (void *)data, len, NULL, 0, NULL);
else
return 0;
}
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