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#include <assert.h>
#include <fluent-bit/flb_connection.h>
#include <fluent-bit/flb_upstream.h>
#include <fluent-bit/flb_downstream.h>
int flb_connection_setup(struct flb_connection *connection,
flb_sockfd_t socket,
int type,
void *stream,
struct mk_event_loop *event_loop,
struct flb_coro *coroutine)
{
assert(connection != NULL);
memset(connection, 0, sizeof(struct flb_connection));
connection->fd = socket;
connection->type = type;
connection->stream = stream;
connection->net_error = -1;
connection->evl = event_loop;
connection->coroutine = coroutine;
connection->tls_session = NULL;
connection->ts_created = time(NULL);
connection->ts_assigned = time(NULL);
connection->busy_flag = FLB_FALSE;
connection->shutdown_flag = FLB_FALSE;
connection->net = &connection->stream->net;
assert(connection->net != NULL);
MK_EVENT_ZERO(&connection->event);
flb_connection_unset_connection_timeout(connection);
flb_connection_unset_io_timeout(connection);
return 0;
}
struct flb_connection *flb_connection_create(flb_sockfd_t socket,
int type,
void *stream,
struct mk_event_loop *event_loop,
struct flb_coro *coroutine)
{
struct flb_connection *connection;
int result;
connection = flb_calloc(1, sizeof(struct flb_connection));
if (connection == NULL) {
flb_errno();
}
else {
result = flb_connection_setup(connection,
socket,
type,
stream,
event_loop,
coroutine);
if (result != 0) {
flb_connection_destroy(connection);
connection = NULL;
}
else {
connection->dynamically_allocated = FLB_TRUE;
}
}
return connection;
}
void flb_connection_destroy(struct flb_connection *connection)
{
assert(connection != NULL);
if (connection->dynamically_allocated) {
flb_free(connection);
}
}
static void compose_user_friendly_remote_host(struct flb_connection *connection)
{
int connection_type;
connection_type = connection->stream->transport;
if (connection_type == FLB_TRANSPORT_TCP) {
snprintf(connection->user_friendly_remote_host,
sizeof(connection->user_friendly_remote_host),
"tcp://%s:%u",
connection->remote_host,
connection->remote_port);
}
else if (connection_type == FLB_TRANSPORT_UDP) {
snprintf(connection->user_friendly_remote_host,
sizeof(connection->user_friendly_remote_host),
"udp://%s:%u",
connection->remote_host,
connection->remote_port);
}
else if (connection_type == FLB_TRANSPORT_UNIX_STREAM) {
snprintf(connection->user_friendly_remote_host,
sizeof(connection->user_friendly_remote_host),
"unix://%s",
connection->remote_host);
}
else if (connection_type == FLB_TRANSPORT_UNIX_DGRAM) {
snprintf(connection->user_friendly_remote_host,
sizeof(connection->user_friendly_remote_host),
"unix://%s",
connection->remote_host);
}
}
void flb_connection_set_remote_host(struct flb_connection *connection,
struct sockaddr *remote_host)
{
size_t address_size;
address_size = flb_network_address_size((struct sockaddr_storage *) remote_host);
if (address_size > 0 &&
address_size < sizeof(struct sockaddr_storage)) {
memcpy(&connection->raw_remote_host,
remote_host,
address_size);
}
}
char *flb_connection_get_remote_address(struct flb_connection *connection)
{
int address_refresh_required;
size_t dummy_size_receptacle;
int refresh_required;
int stream_type;
int transport;
int result;
stream_type = connection->stream->type;
transport = connection->stream->transport;
address_refresh_required = FLB_FALSE;
refresh_required = FLB_FALSE;
if (stream_type == FLB_DOWNSTREAM) {
if (transport == FLB_TRANSPORT_UDP) {
if (connection->raw_remote_host.ss_family != AF_UNSPEC) {
refresh_required = FLB_TRUE;
}
}
else if (transport == FLB_TRANSPORT_TCP ||
transport == FLB_TRANSPORT_UNIX_STREAM) {
if (connection->raw_remote_host.ss_family == AF_UNSPEC) {
address_refresh_required = FLB_TRUE;
}
}
}
else if (stream_type == FLB_UPSTREAM) {
if (transport == FLB_TRANSPORT_TCP ||
transport == FLB_TRANSPORT_UNIX_STREAM) {
if (connection->raw_remote_host.ss_family == AF_UNSPEC) {
address_refresh_required = FLB_TRUE;
}
}
}
if (connection->remote_port == 0) {
refresh_required = FLB_TRUE;
}
if (refresh_required) {
if (address_refresh_required) {
result = flb_net_socket_peer_address(connection->fd,
&connection->raw_remote_host);
}
result = flb_net_socket_address_info(connection->fd,
&connection->raw_remote_host,
&connection->remote_port,
connection->remote_host,
sizeof(connection->remote_host),
&dummy_size_receptacle);
if (result == 0) {
compose_user_friendly_remote_host(connection);
}
}
return connection->user_friendly_remote_host;
}
int flb_connection_get_flags(struct flb_connection *connection)
{
return flb_stream_get_flags(connection->stream);
}
void flb_connection_reset_connection_timeout(struct flb_connection *connection)
{
time_t current_time;
time_t timeout_time;
assert(connection != NULL);
if (connection->type == FLB_UPSTREAM_CONNECTION) {
if (connection->net->connect_timeout > 0) {
current_time = time(NULL);
timeout_time = current_time + connection->net->connect_timeout;
connection->ts_connect_start = current_time;
connection->ts_connect_timeout = timeout_time;
}
}
else if(connection->type == FLB_DOWNSTREAM_CONNECTION) {
if (connection->net->accept_timeout > 0) {
current_time = time(NULL);
timeout_time = current_time + connection->net->accept_timeout;
connection->ts_connect_start = current_time;
connection->ts_connect_timeout = timeout_time;
}
}
}
void flb_connection_unset_connection_timeout(struct flb_connection *connection)
{
assert(connection != NULL);
connection->ts_connect_start = -1;
connection->ts_connect_timeout = -1;
}
void flb_connection_reset_io_timeout(struct flb_connection *connection)
{
time_t current_time;
time_t timeout_time;
assert(connection != NULL);
if (connection->net->io_timeout > 0) {
current_time = time(NULL);
timeout_time = current_time + connection->net->io_timeout;
connection->ts_io_timeout = timeout_time;
}
}
void flb_connection_unset_io_timeout(struct flb_connection *connection)
{
assert(connection != NULL);
connection->ts_io_timeout = -1;
}
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