/************************************************************************
* NAME: fapp_dhcp_info
*
* DESCRIPTION:
*************************************************************************/
void fapp_dhcp_info(fnet_shell_desc_t desc)
{
fnet_char_t ip_str[FNET_IP4_ADDR_STR_SIZE];
fnet_bool_t dhcp_is_enabled = fnet_dhcp_is_enabled(fapp_dhcp_desc);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_S, "DHCP Client", fapp_enabled_str[dhcp_is_enabled]);
if(dhcp_is_enabled && (fnet_netif_get_ip4_addr_type(fnet_netif_get_default()) == FNET_NETIF_IP_ADDR_TYPE_DHCP))
{
struct fnet_dhcp_options options;
fnet_dhcp_get_options(fapp_dhcp_desc, &options);
fnet_inet_ntoa(*(struct in_addr *)( &options.dhcp_server), ip_str);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_S, "DHCP Server", ip_str);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Lease Time", fnet_ntohl(options.lease_time));
}
}
/************************************************************************
* NAME: fapp_dhcp_info
*
* DESCRIPTION:
*************************************************************************/
void fapp_dhcp_info(fnet_shell_desc_t desc)
{
fnet_char_t ip_str[FNET_IP4_ADDR_STR_SIZE];
fnet_bool_t dhcp_enabled = fnet_dhcp_enabled(fapp_dhcp_desc);
fnet_bool_t address_automatic = fnet_netif_get_ip4_addr_automatic(fnet_netif_get_default());
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_S, "DHCP Client", dhcp_enabled ? FAPP_SHELL_INFO_ENABLED : FAPP_SHELL_INFO_DISABLED);
if(dhcp_enabled && address_automatic)
{
struct fnet_dhcp_options options;
fnet_dhcp_get_options(fapp_dhcp_desc, &options);
fnet_inet_ntoa(*(struct in_addr *)( &options.dhcp_server), ip_str);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_S, "DHCP Server", ip_str);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Lease Time", fnet_ntohl(options.lease_time));
}
}
/************************************************************************
* NAME: fapp_bench_udp_tx
*
* DESCRIPTION: Start TX TCP Benchmark.
************************************************************************/
static void fapp_bench_udp_tx (struct fapp_bench_tx_params *params)
{
int send_result;
char ip_str[FNET_IP_ADDR_STR_SIZE];
int i;
int received;
const struct linger linger_option ={1, /*l_onoff*/
4 /*l_linger*/};
const unsigned long bufsize_option = FAPP_BENCH_SOCKET_BUF_SIZE;
struct sockaddr foreign_addr;
int exit_flag = 0;
int sock_err;
unsigned int option_len;
fnet_shell_desc_t desc = params->desc;
int packet_size = params->packet_size;
int cur_packet_number;
int iterations = params->iteration_number;
fnet_address_family_t family = params->foreign_addr.sa_family;
if(packet_size > FAPP_BENCH_BUFFER_SIZE) /* Check max size.*/
packet_size = FAPP_BENCH_BUFFER_SIZE;
fapp_bench.socket_listen = SOCKET_INVALID;
/* ------ Start test.----------- */
fnet_shell_println(desc, FAPP_DELIMITER_STR);
fnet_shell_println(desc, " UDP TX Test" );
fnet_shell_println(desc, FAPP_DELIMITER_STR);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_S, "Remote IP addr", fnet_inet_ntop(family, params->foreign_addr.sa_data, ip_str, sizeof(ip_str)));
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Remote Port", fnet_ntohs(params->foreign_addr.sa_port));
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Message Size", params->packet_size);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Num. of messages", params->packet_number);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Num. of iterations", params->iteration_number);
fnet_shell_println(desc, FAPP_TOCANCEL_STR);
fnet_shell_println(desc, FAPP_DELIMITER_STR);
while(iterations--)
{
/* Create socket */
if((fapp_bench.socket_foreign = socket(family, SOCK_DGRAM, 0)) == SOCKET_INVALID)
{
FNET_DEBUG("BENCH: Socket creation error.\n");
iterations = 0;
goto ERROR_1;
}
/* Set Socket options. */
if( /* Setup linger option. */
(setsockopt (fapp_bench.socket_foreign, SOL_SOCKET, SO_LINGER, (char *)&linger_option, sizeof(linger_option)) == SOCKET_ERROR) ||
/* Set socket buffer size. */
(setsockopt(fapp_bench.socket_foreign, SOL_SOCKET, SO_RCVBUF, (char *) &bufsize_option, sizeof(bufsize_option))== SOCKET_ERROR) ||
(setsockopt(fapp_bench.socket_foreign, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize_option, sizeof(bufsize_option))== SOCKET_ERROR)
)
{
FNET_DEBUG("BENCH: Socket setsockopt error.\n");
iterations = 0;
goto ERROR_2;
}
/* Bind to the server.*/
fnet_shell_println(desc,"Connecting.");
foreign_addr = params->foreign_addr;
if(connect(fapp_bench.socket_foreign, &foreign_addr, sizeof(foreign_addr))== FNET_ERR)
{
fnet_shell_println(desc, "Connection failed.");
iterations = 0;
goto ERROR_2;
}
/* Sending.*/
fnet_shell_println(desc,"Sending.");
fapp_bench.bytes = 0;
fapp_bench.remote_bytes = 0;
cur_packet_number = 0;
fapp_bench.first_time = fnet_timer_ticks();
while(1)
{
send_result = send( fapp_bench.socket_foreign, (char*)(&fapp_bench.buffer[0]), packet_size, 0);
fapp_bench.last_time = fnet_timer_ticks();
if ( send_result == SOCKET_ERROR )
{
option_len = sizeof(sock_err);
getsockopt(fapp_bench.socket_foreign, SOL_SOCKET, SO_ERROR, (char*)&sock_err, &option_len);
fnet_shell_println(desc, "socket_error = %d", sock_err);
iterations = 0;
goto ERROR_2;
}
else
{
fapp_bench.bytes += send_result;
cur_packet_number ++;
exit_flag = fnet_shell_ctrlc (desc); /* Check [Ctrl+c]*/
if((cur_packet_number >= params->packet_number)|| exit_flag)
{
if(exit_flag)
{
fnet_shell_println(desc, FAPP_SHELL_CANCELED_CTRL_C);
iterations = 0;
}
break;/* => TX END. */
}
}
}
/* Send End mark.*/
for(i=0; i < FAPP_BENCH_TX_UDP_END_ITERATIONS; i++)
{
unsigned long ack_bytes;
/* Send END mark.*/
send( fapp_bench.socket_foreign, (char*)(&fapp_bench.buffer[0]), 1, 0);
fnet_timer_delay(1);
/* Check ACK. It should contain recieved amount of data.*/
received = recv(fapp_bench.socket_foreign, (char*)(&ack_bytes), sizeof(ack_bytes), 0);
if(received == sizeof(ack_bytes)) /* ACK received.*/
{
fapp_bench.remote_bytes = fnet_ntohl(ack_bytes);
break;
}
else if(received == SOCKET_ERROR)
{
break;
}
else
{}
}
/* Print benchmark results.*/
fapp_bench_print_results (desc);
ERROR_2:
closesocket(fapp_bench.socket_foreign);
}
ERROR_1:
fnet_shell_println(desc, FAPP_BENCH_COMPLETED_STR);
}
/************************************************************************
* NAME: fnet_icmp6_input
*
* DESCRIPTION: ICMPv6 input function.
*************************************************************************/
static void fnet_icmp6_input(fnet_netif_t *netif, struct sockaddr *src_addr, struct sockaddr *dest_addr, fnet_netbuf_t *nb, fnet_netbuf_t *ip6_nb)
{
fnet_icmp6_header_t *hdr;
fnet_netbuf_t *tmp_nb;
unsigned short sum;
fnet_ip6_addr_t *src_ip;
fnet_ip6_addr_t *dest_ip;
fnet_prot_notify_t prot_cmd;
if((netif != 0) && (nb != 0))
{
/* The header must reside in contiguous area of memory. */
if((tmp_nb = fnet_netbuf_pullup(nb, sizeof(fnet_icmp6_header_t))) == 0)
{
goto DISCARD;
}
nb = tmp_nb;
hdr = nb->data_ptr;
dest_ip = &((struct sockaddr_in6 *)(dest_addr))->sin6_addr.s6_addr;
src_ip = &((struct sockaddr_in6 *)(src_addr))->sin6_addr.s6_addr;
/* Drop Multicast loopback.*/
#if FNET_CFG_LOOPBACK
if ((netif == FNET_LOOP_IF) && FNET_IP6_ADDR_IS_MULTICAST(dest_ip))
{
goto DISCARD;
}
#endif /* FNET_CFG_LOOPBACK */
/* Verify the checksum. */
sum = fnet_checksum_pseudo_start( nb, FNET_HTONS((unsigned short)FNET_IP_PROTOCOL_ICMP6), (unsigned short)nb->total_length );
sum = fnet_checksum_pseudo_end( sum, (char *)src_ip, (char *)dest_ip, sizeof(fnet_ip6_addr_t) );
if(sum)
goto DISCARD;
/************************************************************
* Process incoming ICMPv6 packets.
*************************************************************/
switch (hdr->type)
{
/**************************
* Neighbor Solicitation.
**************************/
case FNET_ICMP6_TYPE_NEIGHBOR_SOLICITATION:
fnet_nd6_neighbor_solicitation_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Neighbor Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_NEIGHBOR_ADVERTISEMENT:
fnet_nd6_neighbor_advertisement_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Router Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_ROUTER_ADVERTISEMENT:
fnet_nd6_router_advertisement_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Router Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_REDIRECT:
fnet_nd6_redirect_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
#if FNET_CFG_MLD
/**************************
* Multicast Listener Query.
**************************/
case FNET_ICMP6_TYPE_MULTICAST_LISTENER_QUERY:
fnet_mld_query_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
#endif
/**************************
* Echo Request.
* RFC4443 4.1: Every node MUST implement an ICMPv6 Echo responder function that
* receives Echo Requests and originates corresponding Echo Replies.
**************************/
case FNET_ICMP6_TYPE_ECHO_REQ:
hdr->type = FNET_ICMP6_TYPE_ECHO_REPLY;
/* RFC4443: the source address of the reply MUST be a unicast
* address belonging to the interface on which
* the Echo Request message was received.*/
if(FNET_IP6_ADDR_IS_MULTICAST(dest_ip))
dest_ip = FNET_NULL;
fnet_icmp6_output(netif, dest_ip/*ipsrc*/, src_ip/*ipdest*/, 0, nb);
fnet_netbuf_free_chain(ip6_nb);
break;
#if FNET_CFG_IP6_PMTU_DISCOVERY
/**************************
* Packet Too Big Message.
**************************/
case FNET_ICMP6_TYPE_PACKET_TOOBIG:
if(netif->pmtu) /* If PMTU is enabled for the interface.*/
{
unsigned long pmtu;
fnet_icmp6_err_header_t *icmp6_err = nb->data_ptr;
/* The header must reside in contiguous area of memory. */
if((tmp_nb = fnet_netbuf_pullup(nb, sizeof(fnet_icmp6_err_header_t))) == 0)
{
goto DISCARD;
}
nb = tmp_nb;
/* RFC 1981.Upon receipt of such a
* message, the source node reduces its assumed PMTU for the path based
* on the MTU of the constricting hop as reported in the Packet Too Big
* message.*/
pmtu = fnet_ntohl(icmp6_err->data);
/* A node MUST NOT increase its estimate of the Path MTU in response to
* the contents of a Packet Too Big message. */
if(netif->pmtu > pmtu)
{
fnet_netif_set_pmtu(netif, pmtu);
}
}
goto DISCARD;
#endif
/**************************
* Destination Unreachable.
**************************/
case FNET_ICMP6_TYPE_DEST_UNREACH:
switch(hdr->code)
{
case FNET_ICMP6_CODE_DU_NO_ROUTE: /* No route to destination. */
case FNET_ICMP6_CODE_DU_BEYOND_SCOPE: /* Beyond scope of source address.*/
prot_cmd = FNET_PROT_NOTIFY_UNREACH_NET;
break;
case FNET_ICMP6_CODE_DU_ADMIN_PROHIBITED: /* Communication with destination administratively prohibited. */
case FNET_ICMP6_CODE_DU_ADDR_UNREACH: /* Address unreachable.*/
prot_cmd = FNET_PROT_NOTIFY_UNREACH_HOST;
break;
case FNET_ICMP6_CODE_DU_PORT_UNREACH: /* Port unreachable.*/
prot_cmd = FNET_PROT_NOTIFY_UNREACH_PORT;
break;
default:
goto DISCARD;
}
/* Protocol notification.*/
{
fnet_ip6_header_t *ip_header;
fnet_prot_if_t *protocol;
unsigned int hdr_err_length = sizeof(fnet_icmp6_err_header_t) + sizeof(fnet_ip6_header_t);
unsigned int hdr_err_data_length = hdr_err_length + 8; /* 8 bytes is enough for transport protocol (port numbers).*/
if(nb->total_length < hdr_err_data_length)
{
goto DISCARD;
}
if(nb->total_length > hdr_err_data_length)
{
fnet_netbuf_trim(&nb, (int)(hdr_err_data_length - nb->total_length));
}
if((tmp_nb = fnet_netbuf_pullup(nb, (int)nb->total_length)) == 0) /* The header must reside in contiguous area of memory.*/
{
goto DISCARD;
}
nb = tmp_nb;
ip_header = (fnet_ip6_header_t *)((char *)nb->data_ptr + sizeof(fnet_icmp6_err_header_t));
if((protocol = fnet_prot_find(AF_INET6, SOCK_UNSPEC, ip_header->next_header)) != 0)
{
if(protocol->prot_control_input)
{
struct sockaddr err_src_addr;
struct sockaddr err_dest_addr;
/* Prepare addreses for upper protocol.*/
fnet_ip6_set_socket_addr(netif, ip_header, &err_src_addr, &err_dest_addr );
fnet_netbuf_trim(&nb, (int)(hdr_err_length)); /* Cut the ICMP error header.*/
protocol->prot_control_input(prot_cmd, &err_src_addr, &err_dest_addr, nb);
}
}
}
goto DISCARD;
default:
goto DISCARD;
}
}
else
{
DISCARD:
fnet_netbuf_free_chain(ip6_nb);
fnet_netbuf_free_chain(nb);
}
}
/************************************************************************
* NAME: fnet_icmp6_input
*
* DESCRIPTION: ICMPv6 input function.
*************************************************************************/
static void fnet_icmp6_input(fnet_netif_t *netif, fnet_ip6_addr_t *src_ip, fnet_ip6_addr_t *dest_ip, fnet_netbuf_t *nb, fnet_netbuf_t *ip6_nb)
{
fnet_icmp6_header_t *hdr;
fnet_netbuf_t *tmp_nb;
unsigned short sum;
if((netif != 0) && (nb != 0))
{
/* The header must reside in contiguous area of memory. */
if((tmp_nb = fnet_netbuf_pullup(nb, sizeof(fnet_icmp6_header_t))) == 0)
{
goto DISCARD;
}
nb = tmp_nb;
hdr = nb->data_ptr;
/* Drop Multicast loopback.*/
#if FNET_CFG_LOOPBACK
if ((netif == FNET_LOOP_IF) && FNET_IP6_ADDR_IS_MULTICAST(dest_ip))
{
goto DISCARD;
}
#endif /* FNET_CFG_LOOPBACK */
/* Verify the checksum. */
sum = fnet_checksum_pseudo_start( nb, FNET_HTONS((unsigned short)FNET_IP_PROTOCOL_ICMP6), (unsigned short)nb->total_length );
sum = fnet_checksum_pseudo_end( sum, (char *)src_ip, (char *)dest_ip, sizeof(fnet_ip6_addr_t) );
if(sum)
goto DISCARD;
/************************************************************
* Process incoming ICMPv6 packets.
*************************************************************/
switch (hdr->type)
{
/**************************
* Neighbor Solicitation.
**************************/
case FNET_ICMP6_TYPE_NEIGHBOR_SOLICITATION:
fnet_nd6_neighbor_solicitation_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Neighbor Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_NEIGHBOR_ADVERTISEMENT:
fnet_nd6_neighbor_advertisement_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Router Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_ROUTER_ADVERTISEMENT:
fnet_nd6_router_advertisement_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
/**************************
* Router Advertisemnt.
**************************/
case FNET_ICMP6_TYPE_REDIRECT:
fnet_nd6_redirect_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
#if FNET_CFG_MLD
/**************************
* Multicast Listener Query.
**************************/
case FNET_ICMP6_TYPE_MULTICAST_LISTENER_QUERY:
fnet_mld_query_receive(netif, src_ip, dest_ip, nb, ip6_nb);
break;
#endif
/**************************
* Echo Request.
* RFC4443 4.1: Every node MUST implement an ICMPv6 Echo responder function that
* receives Echo Requests and originates corresponding Echo Replies.
**************************/
case FNET_ICMP6_TYPE_ECHO_REQ:
hdr->type = FNET_ICMP6_TYPE_ECHO_REPLY;
/* RFC4443: the source address of the reply MUST be a unicast
* address belonging to the interface on which
* the Echo Request message was received.*/
if(FNET_IP6_ADDR_IS_MULTICAST(dest_ip))
dest_ip = FNET_NULL;
fnet_icmp6_output(netif, dest_ip/*ipsrc*/, src_ip/*ipdest*/, 0, nb); //MD
fnet_netbuf_free_chain(ip6_nb);
break;
#if FNET_CFG_IP6_PMTU_DISCOVERY
/**************************
* Packet Too Big Message.
**************************/
case FNET_ICMP6_TYPE_PACKET_TOOBIG:
if(netif->pmtu) /* If PMTU is enabled for the interface.*/
{
unsigned long pmtu;
fnet_icmp6_err_header_t *icmp6_err = nb->data_ptr;
/* The header must reside in contiguous area of memory. */
if((tmp_nb = fnet_netbuf_pullup(nb, sizeof(fnet_icmp6_err_header_t))) == 0)
{
goto DISCARD;
}
nb = tmp_nb;
/* RFC 1981.Upon receipt of such a
* message, the source node reduces its assumed PMTU for the path based
* on the MTU of the constricting hop as reported in the Packet Too Big
* message.*/
pmtu = fnet_ntohl(icmp6_err->data);
/* A node MUST NOT increase its estimate of the Path MTU in response to
* the contents of a Packet Too Big message. */
if(netif->pmtu > pmtu)
{
fnet_netif_set_pmtu(netif, pmtu);
}
}
goto DISCARD;
#endif
default:
goto DISCARD;
}
}
else
{
DISCARD:
fnet_netbuf_free_chain(ip6_nb);
fnet_netbuf_free_chain(nb);
}
}