static void remote_ieee80211_connect(ddf_fun_t *fun, void *iface,
ipc_callid_t callid, ipc_call_t *call)
{
ieee80211_iface_t *ieee80211_iface = (ieee80211_iface_t *) iface;
assert(ieee80211_iface->connect);
char ssid_start[MAX_STRING_SIZE];
char password[MAX_STRING_SIZE];
ipc_callid_t data_callid;
size_t len;
if (!async_data_write_receive(&data_callid, &len)) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
if (len > MAX_STRING_SIZE) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
int rc = async_data_write_finalize(data_callid, ssid_start, len);
if (rc != EOK) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
if (!async_data_write_receive(&data_callid, &len)) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
if (len > MAX_STRING_SIZE) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
rc = async_data_write_finalize(data_callid, password, len);
if (rc != EOK) {
async_answer_0(data_callid, EINVAL);
async_answer_0(callid, EINVAL);
return;
}
rc = ieee80211_iface->connect(fun, ssid_start, password);
async_answer_0(callid, rc);
}
/** Process the write request from the remote client.
*
* Receive the write request's parameters from the remote client and pass them
* to the local interface. Return the result of the operation processed by the
* local interface to the remote client.
*
* @param fun The function to which the data are written.
* @param ops The local ops structure.
*/
static void
remote_char_write(ddf_fun_t *fun, void *ops, ipc_callid_t callid,
ipc_call_t *call)
{
char_dev_ops_t *char_dev_ops = (char_dev_ops_t *) ops;
ipc_callid_t cid;
size_t len;
if (!async_data_write_receive(&cid, &len)) {
/* TODO handle protocol error. */
async_answer_0(callid, EINVAL);
return;
}
if (!char_dev_ops->write) {
async_data_write_finalize(cid, NULL, 0);
async_answer_0(callid, ENOTSUP);
return;
}
if (len > MAX_CHAR_RW_COUNT)
len = MAX_CHAR_RW_COUNT;
char buf[MAX_CHAR_RW_COUNT];
async_data_write_finalize(cid, buf, len);
int ret = (*char_dev_ops->write)(fun, buf, len);
if (ret < 0) {
/* Some error occured. */
async_answer_0(callid, ret);
} else {
/*
* The operation was successful, return the number of data
* written.
*/
async_answer_1(callid, EOK, ret);
}
}
static void tcp_sock_send(tcp_client_t *client, ipc_callid_t callid, ipc_call_t call)
{
int socket_id;
int fragments;
int index;
socket_core_t *sock_core;
tcp_sockdata_t *socket;
ipc_call_t answer;
ipc_callid_t wcallid;
size_t length;
uint8_t buffer[TCP_SOCK_FRAGMENT_SIZE];
tcp_error_t trc;
int rc;
log_msg(LVL_DEBUG, "tcp_sock_send()");
socket_id = SOCKET_GET_SOCKET_ID(call);
fragments = SOCKET_GET_DATA_FRAGMENTS(call);
SOCKET_GET_FLAGS(call);
sock_core = socket_cores_find(&client->sockets, socket_id);
if (sock_core == NULL) {
async_answer_0(callid, ENOTSOCK);
return;
}
socket = (tcp_sockdata_t *)sock_core->specific_data;
fibril_mutex_lock(&socket->lock);
if (socket->conn == NULL) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, ENOTCONN);
return;
}
for (index = 0; index < fragments; index++) {
if (!async_data_write_receive(&wcallid, &length)) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, EINVAL);
return;
}
if (length > TCP_SOCK_FRAGMENT_SIZE)
length = TCP_SOCK_FRAGMENT_SIZE;
rc = async_data_write_finalize(wcallid, buffer, length);
if (rc != EOK) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, rc);
return;
}
trc = tcp_uc_send(socket->conn, buffer, length, 0);
switch (trc) {
case TCP_EOK:
rc = EOK;
break;
case TCP_ENOTEXIST:
rc = ENOTCONN;
break;
case TCP_ECLOSING:
rc = ENOTCONN;
break;
case TCP_ERESET:
rc = ECONNABORTED;
break;
default:
assert(false);
}
if (rc != EOK) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, rc);
return;
}
}
IPC_SET_ARG1(answer, 0);
SOCKET_SET_DATA_FRAGMENT_SIZE(answer, TCP_SOCK_FRAGMENT_SIZE);
async_answer_2(callid, EOK, IPC_GET_ARG1(answer),
IPC_GET_ARG2(answer));
fibril_mutex_unlock(&socket->lock);
}
static void udp_sock_sendto(udp_client_t *client, ipc_callid_t callid, ipc_call_t call)
{
int socket_id;
int fragments;
int index;
struct sockaddr_in *addr;
size_t addr_size;
socket_core_t *sock_core;
udp_sockdata_t *socket;
udp_sock_t fsock, *fsockp;
ipc_call_t answer;
ipc_callid_t wcallid;
size_t length;
uint8_t buffer[UDP_FRAGMENT_SIZE];
udp_error_t urc;
int rc;
log_msg(LVL_DEBUG, "udp_sock_send()");
addr = NULL;
if (IPC_GET_IMETHOD(call) == NET_SOCKET_SENDTO) {
rc = async_data_write_accept((void **) &addr, false,
0, 0, 0, &addr_size);
if (rc != EOK) {
async_answer_0(callid, rc);
goto out;
}
if (addr_size != sizeof(struct sockaddr_in)) {
async_answer_0(callid, EINVAL);
goto out;
}
fsock.addr.ipv4 = uint32_t_be2host(addr->sin_addr.s_addr);
fsock.port = uint16_t_be2host(addr->sin_port);
fsockp = &fsock;
} else {
fsockp = NULL;
}
socket_id = SOCKET_GET_SOCKET_ID(call);
fragments = SOCKET_GET_DATA_FRAGMENTS(call);
SOCKET_GET_FLAGS(call);
sock_core = socket_cores_find(&client->sockets, socket_id);
if (sock_core == NULL) {
async_answer_0(callid, ENOTSOCK);
goto out;
}
if (sock_core->port == 0) {
/* Implicitly bind socket to port */
rc = socket_bind(&client->sockets, &gsock, SOCKET_GET_SOCKET_ID(call),
addr, addr_size, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END,
last_used_port);
if (rc != EOK) {
async_answer_0(callid, rc);
goto out;
}
}
socket = (udp_sockdata_t *)sock_core->specific_data;
fibril_mutex_lock(&socket->lock);
if (socket->assoc->ident.local.addr.ipv4 == UDP_IPV4_ANY) {
/* Determine local IP address */
inet_addr_t loc_addr, rem_addr;
rem_addr.ipv4 = fsockp ? fsock.addr.ipv4 :
socket->assoc->ident.foreign.addr.ipv4;
rc = inet_get_srcaddr(&rem_addr, 0, &loc_addr);
if (rc != EOK) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, rc);
log_msg(LVL_DEBUG, "udp_sock_sendto: Failed to "
"determine local address.");
return;
}
socket->assoc->ident.local.addr.ipv4 = loc_addr.ipv4;
log_msg(LVL_DEBUG, "Local IP address is %x",
socket->assoc->ident.local.addr.ipv4);
}
assert(socket->assoc != NULL);
for (index = 0; index < fragments; index++) {
if (!async_data_write_receive(&wcallid, &length)) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, EINVAL);
goto out;
}
if (length > UDP_FRAGMENT_SIZE)
length = UDP_FRAGMENT_SIZE;
rc = async_data_write_finalize(wcallid, buffer, length);
if (rc != EOK) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, rc);
goto out;
}
urc = udp_uc_send(socket->assoc, fsockp, buffer, length, 0);
switch (urc) {
case UDP_EOK:
rc = EOK;
break;
/* case TCP_ENOTEXIST:
rc = ENOTCONN;
break;
case TCP_ECLOSING:
rc = ENOTCONN;
break;
case TCP_ERESET:
rc = ECONNABORTED;
break;*/
default:
assert(false);
}
if (rc != EOK) {
fibril_mutex_unlock(&socket->lock);
async_answer_0(callid, rc);
goto out;
}
}
IPC_SET_ARG1(answer, 0);
SOCKET_SET_DATA_FRAGMENT_SIZE(answer, UDP_FRAGMENT_SIZE);
async_answer_2(callid, EOK, IPC_GET_ARG1(answer),
IPC_GET_ARG2(answer));
fibril_mutex_unlock(&socket->lock);
out:
if (addr != NULL)
free(addr);
}
/**
* Server side implementation of the hound protocol. IPC connection handler.
* @param iid initial call id
* @param icall pointer to initial call structure.
* @param arg (unused)
*/
void hound_connection_handler(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
/* Accept connection if there is a valid iface*/
if (server_iface) {
async_answer_0(iid, EOK);
} else {
async_answer_0(iid, ENOTSUP);
return;
}
while (1) {
ipc_call_t call;
ipc_callid_t callid = async_get_call(&call);
switch (IPC_GET_IMETHOD(call)) {
case IPC_M_HOUND_CONTEXT_REGISTER: {
/* check interface functions */
if (!server_iface || !server_iface->add_context) {
async_answer_0(callid, ENOTSUP);
break;
}
bool record = IPC_GET_ARG1(call);
void *name;
/* Get context name */
int ret =
async_data_write_accept(&name, true, 0, 0, 0, 0);
if (ret != EOK) {
async_answer_0(callid, ret);
break;
}
hound_context_id_t id = 0;
ret = server_iface->add_context(server_iface->server,
&id, name, record);
/** new context should create a copy */
free(name);
if (ret != EOK) {
async_answer_0(callid, ret);
} else {
async_answer_1(callid, EOK, id);
}
break;
}
case IPC_M_HOUND_CONTEXT_UNREGISTER: {
/* check interface functions */
if (!server_iface || !server_iface->rem_context) {
async_answer_0(callid, ENOTSUP);
break;
}
/* get id, 1st param */
hound_context_id_t id = IPC_GET_ARG1(call);
const int ret =
server_iface->rem_context(server_iface->server, id);
async_answer_0(callid, ret);
break;
}
case IPC_M_HOUND_GET_LIST: {
/* check interface functions */
if (!server_iface || !server_iface->get_list) {
async_answer_0(callid, ENOTSUP);
break;
}
const char **list = NULL;
const int flags = IPC_GET_ARG1(call);
size_t count = IPC_GET_ARG2(call);
const bool conn = IPC_GET_ARG3(call);
char *conn_name = NULL;
int ret = EOK;
/* get connected actor name if provided */
if (conn)
ret = async_data_write_accept(
(void**)&conn_name, true, 0, 0, 0, 0);
if (ret == EOK)
ret = server_iface->get_list(
server_iface->server, &list, &count,
conn_name, flags);
free(conn_name);
/* Alloc string sizes array */
size_t *sizes = NULL;
if (count)
sizes = calloc(count, sizeof(size_t));
if (count && !sizes)
ret = ENOMEM;
async_answer_1(callid, ret, count);
/* We are done */
if (count == 0 || ret != EOK)
break;
/* Prepare sizes table */
for (unsigned i = 0; i < count; ++i)
sizes[i] = str_size(list[i]);
/* Send sizes table */
ipc_callid_t id;
if (async_data_read_receive(&id, NULL)) {
ret = async_data_read_finalize(id, sizes,
count * sizeof(size_t));
}
free(sizes);
/* Proceed to send names */
for (unsigned i = 0; i < count; ++i) {
size_t size = str_size(list[i]);
ipc_callid_t id;
if (ret == EOK &&
async_data_read_receive(&id, NULL)) {
ret = async_data_read_finalize(id,
list[i], size);
}
free(list[i]);
}
free(list);
break;
}
case IPC_M_HOUND_CONNECT: {
/* check interface functions */
if (!server_iface || !server_iface->connect) {
async_answer_0(callid, ENOTSUP);
break;
}
void *source = NULL;
void *sink = NULL;
/* read source name */
int ret =
async_data_write_accept(&source, true, 0, 0, 0, 0);
/* read sink name */
if (ret == EOK)
ret = async_data_write_accept(&sink,
true, 0, 0, 0, 0);
if (ret == EOK)
ret = server_iface->connect(
server_iface->server, source, sink);
free(source);
free(sink);
async_answer_0(callid, ret);
break;
}
case IPC_M_HOUND_DISCONNECT: {
/* check interface functions */
if (!server_iface || !server_iface->disconnect) {
async_answer_0(callid, ENOTSUP);
break;
}
void *source = NULL;
void *sink = NULL;
/* read source name */
int ret =
async_data_write_accept(&source, true, 0, 0, 0, 0);
/*read sink name */
if (ret == EOK)
ret = async_data_write_accept(&sink,
true, 0, 0, 0, 0);
if (ret == EOK)
ret = server_iface->connect(
server_iface->server, source, sink);
free(source);
free(sink);
async_answer_0(callid, ret);
break;
}
case IPC_M_HOUND_STREAM_ENTER: {
/* check interface functions */
if (!server_iface || !server_iface->is_record_context
|| !server_iface->add_stream
|| !server_iface->rem_stream) {
async_answer_0(callid, ENOTSUP);
break;
}
/* get parameters */
hound_context_id_t id = IPC_GET_ARG1(call);
const int flags = IPC_GET_ARG2(call);
const format_convert_t c = {.arg = IPC_GET_ARG3(call)};
const pcm_format_t f = {
.sampling_rate = c.f.rate * 100,
.channels = c.f.channels,
.sample_format = c.f.format,
};
size_t bsize = IPC_GET_ARG4(call);
void *stream;
int ret = server_iface->add_stream(server_iface->server,
id, flags, f, bsize, &stream);
if (ret != EOK) {
async_answer_0(callid, ret);
break;
}
const bool rec = server_iface->is_record_context(
server_iface->server, id);
if (rec) {
if(server_iface->stream_data_read) {
async_answer_0(callid, EOK);
/* start answering read calls */
hound_server_write_data(stream);
server_iface->rem_stream(
server_iface->server, stream);
} else {
async_answer_0(callid, ENOTSUP);
}
} else {
if (server_iface->stream_data_write) {
async_answer_0(callid, EOK);
/* accept write calls */
hound_server_read_data(stream);
server_iface->rem_stream(
server_iface->server, stream);
} else {
async_answer_0(callid, ENOTSUP);
}
}
break;
}
case IPC_M_HOUND_STREAM_EXIT:
case IPC_M_HOUND_STREAM_DRAIN:
/* Stream exit/drain is only allowed in stream context*/
async_answer_0(callid, EINVAL);
break;
default:
async_answer_0(callid, ENOTSUP);
return;
}
}
}
/**
* Read data and push it to the stream.
* @param stream target stream, will push data there.
*/
static void hound_server_read_data(void *stream)
{
ipc_callid_t callid;
ipc_call_t call;
size_t size = 0;
int ret_answer = EOK;
/* accept data write or drain */
while (async_data_write_receive_call(&callid, &call, &size)
|| (IPC_GET_IMETHOD(call) == IPC_M_HOUND_STREAM_DRAIN)) {
/* check drain first */
if (IPC_GET_IMETHOD(call) == IPC_M_HOUND_STREAM_DRAIN) {
int ret = ENOTSUP;
if (server_iface->drain_stream)
ret = server_iface->drain_stream(stream);
async_answer_0(callid, ret);
continue;
}
/* there was an error last time */
if (ret_answer != EOK) {
async_answer_0(callid, ret_answer);
continue;
}
char *buffer = malloc(size);
if (!buffer) {
async_answer_0(callid, ENOMEM);
continue;
}
const int ret = async_data_write_finalize(callid, buffer, size);
if (ret == EOK) {
/* push data to stream */
ret_answer = server_iface->stream_data_write(
stream, buffer, size);
}
}
const int ret = IPC_GET_IMETHOD(call) == IPC_M_HOUND_STREAM_EXIT
? EOK : EINVAL;
async_answer_0(callid, ret);
}
