|
|
|
@ -29,16 +29,16 @@ |
|
|
|
|
DECLARE_GLOBAL_DATA_PTR; |
|
|
|
|
|
|
|
|
|
static char input_buffer[512]; |
|
|
|
|
static int input_size = 0; /* char count in input buffer */ |
|
|
|
|
static int input_offset = 0; /* offset to valid chars in input buffer */ |
|
|
|
|
static int input_recursion = 0; |
|
|
|
|
static int output_recursion = 0; |
|
|
|
|
static int input_size; /* char count in input buffer */ |
|
|
|
|
static int input_offset; /* offset to valid chars in input buffer */ |
|
|
|
|
static int input_recursion; |
|
|
|
|
static int output_recursion; |
|
|
|
|
static int net_timeout; |
|
|
|
|
static uchar nc_ether[6]; /* server enet address */ |
|
|
|
|
static IPaddr_t nc_ip; /* server ip */ |
|
|
|
|
static short nc_port; /* source/target port */ |
|
|
|
|
static const char *output_packet; /* used by first send udp */ |
|
|
|
|
static int output_packet_len = 0; |
|
|
|
|
static int output_packet_len; |
|
|
|
|
|
|
|
|
|
static void nc_wait_arp_handler(uchar *pkt, unsigned dest, |
|
|
|
|
IPaddr_t sip, unsigned src, |
|
|
|
@ -54,56 +54,57 @@ static void nc_handler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
|
|
|
|
NetState = NETLOOP_SUCCESS; /* got input - quit net loop */ |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void nc_timeout (void) |
|
|
|
|
static void nc_timeout(void) |
|
|
|
|
{ |
|
|
|
|
NetState = NETLOOP_SUCCESS; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void NcStart (void) |
|
|
|
|
void NcStart(void) |
|
|
|
|
{ |
|
|
|
|
if (!output_packet_len || memcmp (nc_ether, NetEtherNullAddr, 6)) { |
|
|
|
|
if (!output_packet_len || memcmp(nc_ether, NetEtherNullAddr, 6)) { |
|
|
|
|
/* going to check for input packet */ |
|
|
|
|
NetSetHandler (nc_handler); |
|
|
|
|
NetSetTimeout (net_timeout, nc_timeout); |
|
|
|
|
NetSetHandler(nc_handler); |
|
|
|
|
NetSetTimeout(net_timeout, nc_timeout); |
|
|
|
|
} else { |
|
|
|
|
/* send arp request */ |
|
|
|
|
uchar *pkt; |
|
|
|
|
NetSetHandler (nc_wait_arp_handler); |
|
|
|
|
pkt = (uchar *) NetTxPacket + NetEthHdrSize () + IP_HDR_SIZE; |
|
|
|
|
memcpy (pkt, output_packet, output_packet_len); |
|
|
|
|
NetSendUDPPacket (nc_ether, nc_ip, nc_port, nc_port, output_packet_len); |
|
|
|
|
NetSetHandler(nc_wait_arp_handler); |
|
|
|
|
pkt = (uchar *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE; |
|
|
|
|
memcpy(pkt, output_packet, output_packet_len); |
|
|
|
|
NetSendUDPPacket(nc_ether, nc_ip, nc_port, nc_port, |
|
|
|
|
output_packet_len); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
int nc_input_packet (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
|
|
|
|
int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len) |
|
|
|
|
{ |
|
|
|
|
int end, chunk; |
|
|
|
|
|
|
|
|
|
if (dest != nc_port || !len) |
|
|
|
|
return 0; /* not for us */ |
|
|
|
|
|
|
|
|
|
if (input_size == sizeof input_buffer) |
|
|
|
|
if (input_size == sizeof(input_buffer)) |
|
|
|
|
return 1; /* no space */ |
|
|
|
|
if (len > sizeof input_buffer - input_size) |
|
|
|
|
len = sizeof input_buffer - input_size; |
|
|
|
|
if (len > sizeof(input_buffer) - input_size) |
|
|
|
|
len = sizeof(input_buffer) - input_size; |
|
|
|
|
|
|
|
|
|
end = input_offset + input_size; |
|
|
|
|
if (end > sizeof input_buffer) |
|
|
|
|
end -= sizeof input_buffer; |
|
|
|
|
if (end > sizeof(input_buffer)) |
|
|
|
|
end -= sizeof(input_buffer); |
|
|
|
|
|
|
|
|
|
chunk = len; |
|
|
|
|
if (end + len > sizeof input_buffer) { |
|
|
|
|
chunk = sizeof input_buffer - end; |
|
|
|
|
if (end + len > sizeof(input_buffer)) { |
|
|
|
|
chunk = sizeof(input_buffer) - end; |
|
|
|
|
memcpy(input_buffer, pkt + chunk, len - chunk); |
|
|
|
|
} |
|
|
|
|
memcpy (input_buffer + end, pkt, chunk); |
|
|
|
|
memcpy(input_buffer + end, pkt, chunk); |
|
|
|
|
|
|
|
|
|
input_size += len; |
|
|
|
|
|
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void nc_send_packet (const char *buf, int len) |
|
|
|
|
static void nc_send_packet(const char *buf, int len) |
|
|
|
|
{ |
|
|
|
|
struct eth_device *eth; |
|
|
|
|
int inited = 0; |
|
|
|
@ -111,33 +112,33 @@ static void nc_send_packet (const char *buf, int len) |
|
|
|
|
uchar *ether; |
|
|
|
|
IPaddr_t ip; |
|
|
|
|
|
|
|
|
|
if ((eth = eth_get_dev ()) == NULL) { |
|
|
|
|
eth = eth_get_dev(); |
|
|
|
|
if (eth == NULL) |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!memcmp (nc_ether, NetEtherNullAddr, 6)) { |
|
|
|
|
if (!memcmp(nc_ether, NetEtherNullAddr, 6)) { |
|
|
|
|
if (eth->state == ETH_STATE_ACTIVE) |
|
|
|
|
return; /* inside net loop */ |
|
|
|
|
output_packet = buf; |
|
|
|
|
output_packet_len = len; |
|
|
|
|
NetLoop (NETCONS); /* wait for arp reply and send packet */ |
|
|
|
|
NetLoop(NETCONS); /* wait for arp reply and send packet */ |
|
|
|
|
output_packet_len = 0; |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (eth->state != ETH_STATE_ACTIVE) { |
|
|
|
|
if (eth_init (gd->bd) < 0) |
|
|
|
|
if (eth_init(gd->bd) < 0) |
|
|
|
|
return; |
|
|
|
|
inited = 1; |
|
|
|
|
} |
|
|
|
|
pkt = (uchar *) NetTxPacket + NetEthHdrSize () + IP_HDR_SIZE; |
|
|
|
|
memcpy (pkt, buf, len); |
|
|
|
|
pkt = (uchar *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE; |
|
|
|
|
memcpy(pkt, buf, len); |
|
|
|
|
ether = nc_ether; |
|
|
|
|
ip = nc_ip; |
|
|
|
|
NetSendUDPPacket (ether, ip, nc_port, nc_port, len); |
|
|
|
|
NetSendUDPPacket(ether, ip, nc_port, nc_port, len); |
|
|
|
|
|
|
|
|
|
if (inited) |
|
|
|
|
eth_halt (); |
|
|
|
|
eth_halt(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int nc_start(void) |
|
|
|
@ -146,26 +147,27 @@ static int nc_start(void) |
|
|
|
|
|
|
|
|
|
nc_port = 6666; /* default port */ |
|
|
|
|
|
|
|
|
|
if (getenv ("ncip")) { |
|
|
|
|
if (getenv("ncip")) { |
|
|
|
|
char *p; |
|
|
|
|
|
|
|
|
|
nc_ip = getenv_IPaddr ("ncip"); |
|
|
|
|
nc_ip = getenv_IPaddr("ncip"); |
|
|
|
|
if (!nc_ip) |
|
|
|
|
return -1; /* ncip is 0.0.0.0 */ |
|
|
|
|
if ((p = strchr (getenv ("ncip"), ':')) != NULL) |
|
|
|
|
nc_port = simple_strtoul (p + 1, NULL, 10); |
|
|
|
|
p = strchr(getenv("ncip"), ':'); |
|
|
|
|
if (p != NULL) |
|
|
|
|
nc_port = simple_strtoul(p + 1, NULL, 10); |
|
|
|
|
} else |
|
|
|
|
nc_ip = ~0; /* ncip is not set */ |
|
|
|
|
|
|
|
|
|
our_ip = getenv_IPaddr ("ipaddr"); |
|
|
|
|
netmask = getenv_IPaddr ("netmask"); |
|
|
|
|
our_ip = getenv_IPaddr("ipaddr"); |
|
|
|
|
netmask = getenv_IPaddr("netmask"); |
|
|
|
|
|
|
|
|
|
if (nc_ip == ~0 || /* 255.255.255.255 */ |
|
|
|
|
((netmask & our_ip) == (netmask & nc_ip) && /* on the same net */ |
|
|
|
|
(netmask | nc_ip) == ~0)) /* broadcast to our net */ |
|
|
|
|
memset (nc_ether, 0xff, sizeof nc_ether); |
|
|
|
|
memset(nc_ether, 0xff, sizeof(nc_ether)); |
|
|
|
|
else |
|
|
|
|
memset (nc_ether, 0, sizeof nc_ether); /* force arp request */ |
|
|
|
|
memset(nc_ether, 0, sizeof(nc_ether)); /* force arp request */ |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
@ -176,7 +178,7 @@ static void nc_putc(char c) |
|
|
|
|
return; |
|
|
|
|
output_recursion = 1; |
|
|
|
|
|
|
|
|
|
nc_send_packet (&c, 1); |
|
|
|
|
nc_send_packet(&c, 1); |
|
|
|
|
|
|
|
|
|
output_recursion = 0; |
|
|
|
|
} |
|
|
|
@ -208,14 +210,14 @@ static int nc_getc(void) |
|
|
|
|
|
|
|
|
|
net_timeout = 0; /* no timeout */ |
|
|
|
|
while (!input_size) |
|
|
|
|
NetLoop (NETCONS); |
|
|
|
|
NetLoop(NETCONS); |
|
|
|
|
|
|
|
|
|
input_recursion = 0; |
|
|
|
|
|
|
|
|
|
c = input_buffer[input_offset++]; |
|
|
|
|
|
|
|
|
|
if (input_offset >= sizeof input_buffer) |
|
|
|
|
input_offset -= sizeof input_buffer; |
|
|
|
|
if (input_offset >= sizeof(input_buffer)) |
|
|
|
|
input_offset -= sizeof(input_buffer); |
|
|
|
|
input_size--; |
|
|
|
|
|
|
|
|
|
return c; |
|
|
|
@ -231,28 +233,28 @@ static int nc_tstc(void) |
|
|
|
|
if (input_size) |
|
|
|
|
return 1; |
|
|
|
|
|
|
|
|
|
eth = eth_get_dev (); |
|
|
|
|
eth = eth_get_dev(); |
|
|
|
|
if (eth && eth->state == ETH_STATE_ACTIVE) |
|
|
|
|
return 0; /* inside net loop */ |
|
|
|
|
|
|
|
|
|
input_recursion = 1; |
|
|
|
|
|
|
|
|
|
net_timeout = 1; |
|
|
|
|
NetLoop (NETCONS); /* kind of poll */ |
|
|
|
|
NetLoop(NETCONS); /* kind of poll */ |
|
|
|
|
|
|
|
|
|
input_recursion = 0; |
|
|
|
|
|
|
|
|
|
return input_size != 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
int drv_nc_init (void) |
|
|
|
|
int drv_nc_init(void) |
|
|
|
|
{ |
|
|
|
|
struct stdio_dev dev; |
|
|
|
|
int rc; |
|
|
|
|
|
|
|
|
|
memset (&dev, 0, sizeof (dev)); |
|
|
|
|
memset(&dev, 0, sizeof(dev)); |
|
|
|
|
|
|
|
|
|
strcpy (dev.name, "nc"); |
|
|
|
|
strcpy(dev.name, "nc"); |
|
|
|
|
dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; |
|
|
|
|
dev.start = nc_start; |
|
|
|
|
dev.putc = nc_putc; |
|
|
|
@ -260,7 +262,7 @@ int drv_nc_init (void) |
|
|
|
|
dev.getc = nc_getc; |
|
|
|
|
dev.tstc = nc_tstc; |
|
|
|
|
|
|
|
|
|
rc = stdio_register (&dev); |
|
|
|
|
rc = stdio_register(&dev); |
|
|
|
|
|
|
|
|
|
return (rc == 0) ? 1 : rc; |
|
|
|
|
} |
|
|
|
|