/**
* Bind a pcb contained in a netconn
* Called from netconn_bind.
*
* @param msg the api_msg_msg pointing to the connection and containing
* the IP address and port to bind to
*/
void
lwip_netconn_do_bind(struct api_msg_msg *msg)
{
if (ERR_IS_FATAL(msg->conn->last_err)) {
msg->err = msg->conn->last_err;
} else {
msg->err = ERR_VAL;
if (msg->conn->pcb.tcp != NULL) {
switch (NETCONNTYPE_GROUP(msg->conn->type)) {
#if LWIP_RAW
case NETCONN_RAW:
msg->err = raw_bind(msg->conn->pcb.raw, API_EXPR_REF(msg->msg.bc.ipaddr));
break;
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDP:
msg->err = udp_bind(msg->conn->pcb.udp, API_EXPR_REF(msg->msg.bc.ipaddr), msg->msg.bc.port);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
msg->err = tcp_bind(msg->conn->pcb.tcp, API_EXPR_REF(msg->msg.bc.ipaddr), msg->msg.bc.port);
break;
#endif /* LWIP_TCP */
default:
break;
}
}
}
TCPIP_APIMSG_ACK(msg);
}
/**
* Connect a pcb contained inside a netconn
* Called from netconn_connect.
*
* @param msg the api_msg_msg pointing to the connection and containing
* the IP address and port to connect to
*/
void
lwip_netconn_do_connect(struct api_msg_msg *msg)
{
if (msg->conn->pcb.tcp == NULL) {
/* This may happen when calling netconn_connect() a second time */
msg->err = ERR_CLSD;
if (NETCONNTYPE_GROUP(msg->conn->type) == NETCONN_TCP) {
/* For TCP, netconn_connect() calls tcpip_apimsg(), so signal op_completed here. */
sys_sem_signal(&msg->conn->op_completed);
return;
}
} else {
switch (NETCONNTYPE_GROUP(msg->conn->type)) {
#if LWIP_RAW
case NETCONN_RAW:
msg->err = raw_connect(msg->conn->pcb.raw, API_EXPR_REF(msg->msg.bc.ipaddr));
break;
#endif /* LWIP_RAW */
#if LWIP_UDP
case NETCONN_UDP:
msg->err = udp_connect(msg->conn->pcb.udp, API_EXPR_REF(msg->msg.bc.ipaddr), msg->msg.bc.port);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case NETCONN_TCP:
/* Prevent connect while doing any other action. */
if (msg->conn->state != NETCONN_NONE) {
msg->err = ERR_ISCONN;
} else {
setup_tcp(msg->conn);
msg->err = tcp_connect(msg->conn->pcb.tcp, API_EXPR_REF(msg->msg.bc.ipaddr),
msg->msg.bc.port, lwip_netconn_do_connected);
if (msg->err == ERR_OK) {
u8_t non_blocking = netconn_is_nonblocking(msg->conn);
msg->conn->state = NETCONN_CONNECT;
SET_NONBLOCKING_CONNECT(msg->conn, non_blocking);
if (non_blocking) {
msg->err = ERR_INPROGRESS;
} else {
msg->conn->current_msg = msg;
/* sys_sem_signal() is called from lwip_netconn_do_connected (or err_tcp()),
* when the connection is established! */
return;
}
}
}
/* For TCP, netconn_connect() calls tcpip_apimsg(), so signal op_completed here. */
sys_sem_signal(&msg->conn->op_completed);
return;
#endif /* LWIP_TCP */
default:
LWIP_ERROR("Invalid netconn type", 0, do{ msg->err = ERR_VAL; }while(0));
break;
}
}
/* For all other protocols, netconn_connect() calls TCPIP_APIMSG(),
so use TCPIP_APIMSG_ACK() here. */
TCPIP_APIMSG_ACK(msg);
}
/**
* Call netif_set_addr() inside the tcpip_thread context.
*/
static err_t
netifapi_do_netif_set_addr(struct tcpip_api_call_data *m)
{
struct netifapi_msg *msg = (struct netifapi_msg*)m;
netif_set_addr( msg->netif,
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw));
return ERR_OK;
}
/**
* Execute a DNS query
* Called from netconn_gethostbyname
*
* @param arg the dns_api_msg pointing to the query
*/
void
lwip_netconn_do_gethostbyname(void *arg)
{
struct dns_api_msg *msg = (struct dns_api_msg*)arg;
API_EXPR_DEREF(msg->err) = dns_gethostbyname(msg->name, API_EXPR_REF(msg->addr), lwip_netconn_do_dns_found, msg);
if (API_EXPR_DEREF(msg->err) != ERR_INPROGRESS) {
/* on error or immediate success, wake up the application
* task waiting in netconn_gethostbyname */
sys_sem_signal(API_EXPR_REF(msg->sem));
}
}
/**
* Call netif_set_addr() inside the tcpip_thread context.
*/
static void
netifapi_do_netif_set_addr(void *m)
{
struct netifapi_msg *msg = (struct netifapi_msg*)m;
netif_set_addr( msg->netif,
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw));
msg->err = ERR_OK;
TCPIP_NETIFAPI_ACK(msg);
}
/**
* Call netif_set_addr() inside the tcpip_thread context.
*/
static err_t
netifapi_do_netif_set_addr(struct tcpip_api_call_data *m)
{
/* cast through void* to silence alignment warnings.
* We know it works because the structs have been instantiated as struct netifapi_msg */
struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
netif_set_addr( msg->netif,
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw));
return ERR_OK;
}
/**
* Call netif_add() inside the tcpip_thread context.
*/
static err_t
netifapi_do_netif_add(struct tcpip_api_call_data *m)
{
struct netifapi_msg *msg = (struct netifapi_msg*)m;
if (!netif_add( msg->netif,
#if LWIP_IPV4
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw),
#endif /* LWIP_IPV4 */
msg->msg.add.state,
msg->msg.add.init,
msg->msg.add.input)) {
return ERR_IF;
} else {
return ERR_OK;
}
}
/**
* Call netif_add() inside the tcpip_thread context.
*/
static void
netifapi_do_netif_add(void *m)
{
struct netifapi_msg *msg = (struct netifapi_msg*)m;
if (!netif_add( msg->netif,
#if LWIP_IPV4
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw),
#endif /* LWIP_IPV4 */
msg->msg.add.state,
msg->msg.add.init,
msg->msg.add.input)) {
msg->err = ERR_IF;
} else {
msg->err = ERR_OK;
}
TCPIP_NETIFAPI_ACK(msg);
}
/**
* Call netif_add() inside the tcpip_thread context.
*/
static err_t
netifapi_do_netif_add(struct tcpip_api_call_data *m)
{
/* cast through void* to silence alignment warnings.
* We know it works because the structs have been instantiated as struct netifapi_msg */
struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
if (!netif_add( msg->netif,
#if LWIP_IPV4
API_EXPR_REF(msg->msg.add.ipaddr),
API_EXPR_REF(msg->msg.add.netmask),
API_EXPR_REF(msg->msg.add.gw),
#endif /* LWIP_IPV4 */
msg->msg.add.state,
msg->msg.add.init,
msg->msg.add.input)) {
return ERR_IF;
} else {
return ERR_OK;
}
}
/**
* Join multicast groups for UDP netconns.
* Called from netconn_join_leave_group
*
* @param msg the api_msg_msg pointing to the connection
*/
void
lwip_netconn_do_join_leave_group(struct api_msg_msg *msg)
{
if (ERR_IS_FATAL(msg->conn->last_err)) {
msg->err = msg->conn->last_err;
} else {
if (msg->conn->pcb.tcp != NULL) {
if (NETCONNTYPE_GROUP(msg->conn->type) == NETCONN_UDP) {
#if LWIP_UDP
#if LWIP_IPV6 && LWIP_IPV6_MLD
if (PCB_ISIPV6(msg->conn->pcb.udp)) {
if (msg->msg.jl.join_or_leave == NETCONN_JOIN) {
msg->err = mld6_joingroup(ipX_2_ip6(API_EXPR_REF(msg->msg.jl.netif_addr)),
ipX_2_ip6(API_EXPR_REF(msg->msg.jl.multiaddr)));
} else {
msg->err = mld6_leavegroup(ipX_2_ip6(API_EXPR_REF(msg->msg.jl.netif_addr)),
ipX_2_ip6(API_EXPR_REF(msg->msg.jl.multiaddr)));
}
}
else
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
{
#if LWIP_IGMP
if (msg->msg.jl.join_or_leave == NETCONN_JOIN) {
msg->err = igmp_joingroup(ipX_2_ip(API_EXPR_REF(msg->msg.jl.netif_addr)),
ipX_2_ip(API_EXPR_REF(msg->msg.jl.multiaddr)));
} else {
msg->err = igmp_leavegroup(ipX_2_ip(API_EXPR_REF(msg->msg.jl.netif_addr)),
ipX_2_ip(API_EXPR_REF(msg->msg.jl.multiaddr)));
}
#endif /* LWIP_IGMP */
}
#endif /* LWIP_UDP */
#if (LWIP_TCP || LWIP_RAW)
} else {
msg->err = ERR_VAL;
#endif /* (LWIP_TCP || LWIP_RAW) */
}
} else {
msg->err = ERR_CONN;
}
}
TCPIP_APIMSG_ACK(msg);
}
/**
* Callback function that is called when DNS name is resolved
* (or on timeout). A waiting application thread is waked up by
* signaling the semaphore.
*/
static void
lwip_netconn_do_dns_found(const char *name, ip_addr_t *ipaddr, void *arg)
{
struct dns_api_msg *msg = (struct dns_api_msg*)arg;
/* we trust the internal implementation to be correct :-) */
LWIP_UNUSED_ARG(name);
if (ipaddr == NULL) {
/* timeout or memory error */
API_EXPR_DEREF(msg->err) = ERR_VAL;
} else {
/* address was resolved */
API_EXPR_DEREF(msg->err) = ERR_OK;
API_EXPR_DEREF(msg->addr) = *ipaddr;
}
/* wake up the application task waiting in netconn_gethostbyname */
sys_sem_signal(API_EXPR_REF(msg->sem));
}
/**
* Callback function that is called when DNS name is resolved
* (or on timeout). A waiting application thread is waked up by
* signaling the semaphore.
*/
static void
lwip_netconn_do_dns_found(const char *name, ip_addr_t *ipaddr, void *arg)
{
struct dns_api_msg *msg = (struct dns_api_msg*)arg;
LWIP_ASSERT("DNS response for wrong host name", strcmp(msg->name, name) == 0);
LWIP_UNUSED_ARG(name);
if (ipaddr == NULL) {
/* timeout or memory error */
API_EXPR_DEREF(msg->err) = ERR_VAL;
} else {
/* address was resolved */
API_EXPR_DEREF(msg->err) = ERR_OK;
API_EXPR_DEREF(msg->addr) = *ipaddr;
}
/* wake up the application task waiting in netconn_gethostbyname */
sys_sem_signal(API_EXPR_REF(msg->sem));
}
/**
* Call pppol2tp_create() inside the tcpip_thread context.
*/
static err_t
pppapi_do_pppol2tp_create(struct tcpip_api_call_data *m)
{
/* cast through void* to silence alignment warnings.
* We know it works because the structs have been instantiated as struct pppapi_msg */
struct pppapi_msg *msg = (struct pppapi_msg *)(void*)m;
msg->msg.ppp = pppol2tp_create(msg->msg.msg.l2tpcreate.pppif,
msg->msg.msg.l2tpcreate.netif, API_EXPR_REF(msg->msg.msg.l2tpcreate.ipaddr), msg->msg.msg.l2tpcreate.port,
#if PPPOL2TP_AUTH_SUPPORT
msg->msg.msg.l2tpcreate.secret,
msg->msg.msg.l2tpcreate.secret_len,
#else /* PPPOL2TP_AUTH_SUPPORT */
NULL,
0,
#endif /* PPPOL2TP_AUTH_SUPPORT */
msg->msg.msg.l2tpcreate.link_status_cb, msg->msg.msg.l2tpcreate.ctx_cb);
return ERR_OK;
}
