int
net_write2(net_t * net, char * buf, unsigned int len) {
uv_write_t * req;
uv_buf_t uvbuf;
int read = 0;
req = (uv_write_t *) malloc(sizeof(uv_write_t));
req->data = net;
switch (net->use_ssl) {
case USE_SSL:
tls_write(net->tls, buf, (int)len);
do {
read = tls_bio_read(net->tls, 0);
if (read > 0) {
uvbuf = uv_buf_init(net->tls->buf, read);
uv_write(req, (uv_stream_t*)net->handle,
&uvbuf,
1,
net_write_cb);
}
} while (read > 0);
break;
case NOT_SSL:
uvbuf = uv_buf_init(buf, len);
uv_write(req, (uv_stream_t*)net->handle,
&uvbuf,
1,
net_write_cb);
break;
}
return NET_OK;
}
void
net_connect_cb(uv_connect_t *conn, int stat) {
net_t * net = (net_t *) conn->data;
err_t err;
int read;
if (stat < 0) {
err = uv_last_error(net->loop);
if (net->error_cb) {
net->error_cb(net, err, (char *) uv_strerror(err));
} else {
printf("error(%s:%d) %s", net->hostname, net->port, (char *) uv_strerror(err));
net_free(net);
}
return;
}
/*
* change the `connected` state
*/
net->connected = 1;
/*
* read buffers via uv
*/
uv_read_start((uv_stream_t *) net->handle, net_alloc, net_read);
/*
* call `conn_cb`, the tcp connection has been
* established in user-land.
*/
if (net->use_ssl == NOT_SSL && net->conn_cb != NULL) {
net->conn_cb(net);
}
/*
* Handle TLS Partial
*/
if (net->use_ssl == USE_SSL && tls_connect(net->tls) == NET_OK) {
read = 0;
do {
read = tls_bio_read(net->tls, 0);
if (read > 0) {
uv_write_t req;
uv_buf_t uvbuf = uv_buf_init(net->tls->buf, read);
uv_write(&req, (uv_stream_t*)net->handle, &uvbuf, 1, NULL);
}
} while (read > 0);
}
}
static ssize_t tls_timed_read(int fd, void *buf, size_t len,
int timeout, void *context)
{
const char *myname = "tls_timed_read";
ssize_t ret;
TLS_SESS_STATE *TLScontext;
TLScontext = (TLS_SESS_STATE *) context;
if (!TLScontext)
acl_msg_panic("%s: no context", myname);
ret = tls_bio_read(fd, buf, (int) len, timeout, TLScontext);
if (ret > 0 && TLScontext->log_level >= 4)
acl_msg_info("Read %ld chars: %.*s",
(long) ret, (int) (ret > 40 ? 40 : ret), (char *) buf);
return (ret);
}
void
net_read(uv_stream_t *handle, ssize_t nread, const uv_buf_t buf) {
net_t * net = (net_t *) handle->data;
err_t err;
if (nread < 0) {
err = uv_last_error(net->loop);
if (net->error_cb) {
net->error_cb(net, err, (char *) uv_strerror(err));
} else {
printf("error(%s:%d) %s", net->hostname, net->port, (char *) uv_strerror(err));
net_free(net);
}
return;
}
/*
* BIO Return rule:
* All these functions return either the amount of data successfully
* read or written (if the return value is positive) or that no data
* was successfully read or written if the result is 0 or -1. If the
* return value is -2 then the operation is not implemented in the specific BIO type.
*/
if (net->use_ssl) {
net->tls->data = malloc(1);
tls_bio_write(net->tls, buf.base, nread);
free(buf.base);
int read = 0;
int stat = tls_read(net->tls);
if (stat == 1) {
/*
* continue: Say hello
*/
do {
read = tls_bio_read(net->tls, 0);
if (read > 0) {
uv_write_t req;
uv_buf_t uvbuf = uv_buf_init(net->tls->buf, read);
uv_write(&req, (uv_stream_t*)net->handle, &uvbuf, 1, NULL);
}
} while (read > 0);
} else if (stat == 0) {
/*
* SSL Connection is created
* Here need to call user-land callback
*/
uv_read_stop((uv_stream_t*)net->handle);
if (net->read_cb != NULL) {
net->read_cb(net, buffer_length(net->tls->buffer),
buffer_string(net->tls->buffer));
}
} else if (stat == -1) {
/*
* Just connection in SSL
* call `conn_cb`, the ssl connection has been
* established in user-land.
*/
if (net->conn_cb != NULL) {
net->conn_cb(net);
}
} else {
/*
* TODO(Yorkie): HOWTO
*/
}
return;
}
/*
* TCP Part, no SSL, just proxy of uv.
*/
uv_read_stop(handle);
buf.base[nread] = 0;
if (net->read_cb != NULL) {
net->read_cb(net, nread, buf.base);
}
}