/** @ingroup tftp
* Initialize TFTP server.
* @param ctx TFTP callback struct
*/
err_t
tftp_init(const struct tftp_context *ctx)
{
err_t ret;
struct udp_pcb *pcb = udp_new_ip_type(IPADDR_TYPE_ANY);
if (pcb == NULL) {
return ERR_MEM;
}
ret = udp_bind(pcb, IP_ANY_TYPE, TFTP_PORT);
if (ret != ERR_OK) {
udp_remove(pcb);
return ret;
}
tftp_state.handle = NULL;
tftp_state.port = 0;
tftp_state.ctx = ctx;
tftp_state.timer = 0;
tftp_state.last_data = NULL;
tftp_state.upcb = pcb;
udp_recv(pcb, recv, NULL);
return ERR_OK;
}
/**
* Initialize TFTP client/server.
* @param mode TFTP mode (client/server)
* @param ctx TFTP callback struct
*/
err_t
tftp_init_common(u8_t mode, const struct tftp_context *ctx)
{
err_t ret;
/* LWIP_ASSERT_CORE_LOCKED(); is checked by udp_new() */
struct udp_pcb *pcb = udp_new_ip_type(IPADDR_TYPE_ANY);
if (pcb == NULL) {
return ERR_MEM;
}
ret = udp_bind(pcb, IP_ANY_TYPE, TFTP_PORT);
if (ret != ERR_OK) {
udp_remove(pcb);
return ret;
}
tftp_state.handle = NULL;
tftp_state.port = 0;
tftp_state.ctx = ctx;
tftp_state.timer = 0;
tftp_state.last_data = NULL;
tftp_state.upcb = pcb;
tftp_state.tftp_mode = mode;
udp_recv(pcb, recv, NULL);
return ERR_OK;
}
/**
* @ingroup zepif
* Set up a raw 6LowPAN netif and surround it with input- and output
* functions for ZEP
*/
err_t
zepif_init(struct netif *netif)
{
err_t err;
struct zepif_init *init_state = (struct zepif_init *)netif->state;
struct zepif_state *state = (struct zepif_state *)mem_malloc(sizeof(struct zepif_state));
LWIP_ASSERT("zepif needs an input callback", netif->input != NULL);
if (state == NULL) {
return ERR_MEM;
}
memset(state, 0, sizeof(struct zepif_state));
if (init_state != NULL) {
memcpy(&state->init, init_state, sizeof(struct zepif_init));
}
if (state->init.zep_src_udp_port == 0) {
state->init.zep_src_udp_port = ZEPIF_DEFAULT_UDP_PORT;
}
if (state->init.zep_dst_udp_port == 0) {
state->init.zep_dst_udp_port = ZEPIF_DEFAULT_UDP_PORT;
}
#if LWIP_IPV4
if (state->init.zep_dst_ip_addr == NULL) {
/* With IPv4 enabled, default to broadcasting packets if no address is set */
state->init.zep_dst_ip_addr = IP_ADDR_BROADCAST;
}
#endif /* LWIP_IPV4 */
netif->state = NULL;
state->pcb = udp_new_ip_type(IPADDR_TYPE_ANY);
if (state->pcb == NULL) {
err = ERR_MEM;
goto err_ret;
}
err = udp_bind(state->pcb, state->init.zep_src_ip_addr, state->init.zep_src_udp_port);
if (err != ERR_OK) {
goto err_ret;
}
if (state->init.zep_netif != NULL) {
udp_bind_netif(state->pcb, state->init.zep_netif);
}
LWIP_ASSERT("udp_bind(lowpan6_broadcast_pcb) failed", err == ERR_OK);
ip_set_option(state->pcb, SOF_BROADCAST);
udp_recv(state->pcb, zepif_udp_recv, netif);
err = lowpan6_if_init(netif);
LWIP_ASSERT("lowpan6_if_init set a state", netif->state == NULL);
if (err == ERR_OK) {
netif->state = state;
netif->hwaddr_len = 6;
if (init_state != NULL) {
memcpy(netif->hwaddr, init_state->addr, 6);
} else {
u8_t i;
for (i = 0; i < 6; i++) {
netif->hwaddr[i] = i;
}
netif->hwaddr[0] &= 0xfc;
}
netif->linkoutput = zepif_linkoutput;
if (!zep_lowpan_timer_running) {
sys_timeout(LOWPAN6_TMR_INTERVAL, zep_lowpan_timer, NULL);
zep_lowpan_timer_running = 1;
}
return ERR_OK;
}
err_ret:
if (state->pcb != NULL) {
udp_remove(state->pcb);
}
mem_free(state);
return err;
}
