* Patch by Detlev Zundel, 08 Sep 2004:
Update etags build target
* Improve NetConsole support: add support for broadcast destination
address and buffered input.
* Cleanup compiler warnings for GCC 3.3.x and later
* Fix problem in cmd_jffs2.c introduced by CFG_JFFS_SINGLE_PART patch
diff --git a/drivers/netconsole.c b/drivers/netconsole.c
index 7e19161..6c27c08 100644
--- a/drivers/netconsole.c
+++ b/drivers/netconsole.c
@@ -33,10 +33,17 @@
#error define CONFIG_NET_MULTI to use netconsole
#endif
-static uchar nc_buf = 0; /* input buffer */
+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 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 void nc_wait_arp_handler (uchar * pkt, unsigned dest, unsigned src,
unsigned len)
@@ -47,7 +54,7 @@
static void nc_handler (uchar * pkt, unsigned dest, unsigned src,
unsigned len)
{
- if (nc_buf)
+ if (input_size)
NetState = NETLOOP_SUCCESS; /* got input - quit net loop */
}
@@ -58,23 +65,45 @@
void NcStart (void)
{
- if (memcmp (NetServerEther, 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);
} else {
/* send arp request */
+ uchar *pkt;
NetSetHandler (nc_wait_arp_handler);
- NetSendUDPPacket (NetServerEther, NetServerIP, 6665, 6666, 0);
+ 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)
{
- if (dest != 6666 || !len)
+ int end, chunk;
+
+ if (dest != nc_port || !len)
return 0; /* not for us */
- nc_buf = *pkt;
+ if (input_size == sizeof input_buffer)
+ return 1; /* no space */
+ 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;
+
+ chunk = len;
+ if (end + len > sizeof input_buffer) {
+ chunk = sizeof input_buffer - end;
+ memcpy(input_buffer, pkt + chunk, len - chunk);
+ }
+ memcpy (input_buffer + end, pkt, chunk);
+
+ input_size += len;
+
return 1;
}
@@ -85,14 +114,23 @@
struct eth_device *eth;
int inited = 0;
uchar *pkt;
-
- if (!memcmp (NetServerEther, NetEtherNullAddr, 6))
- return;
+ uchar *ether;
+ IPaddr_t ip;
if ((eth = eth_get_dev ()) == NULL) {
return;
}
+ 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 */
+ output_packet_len = 0;
+ return;
+ }
+
if (eth->state != ETH_STATE_ACTIVE) {
if (eth_init (gd->bd) < 0)
return;
@@ -100,7 +138,9 @@
}
pkt = (uchar *) NetTxPacket + NetEthHdrSize () + IP_HDR_SIZE;
memcpy (pkt, buf, len);
- NetSendUDPPacket (NetServerEther, NetServerIP, 6666, 6665, len);
+ ether = nc_ether;
+ ip = nc_ip;
+ NetSendUDPPacket (ether, ip, nc_port, nc_port, len);
if (inited)
eth_halt ();
@@ -108,10 +148,31 @@
int nc_start (void)
{
- if (memcmp (NetServerEther, NetEtherNullAddr, 6))
- return 0;
+ int netmask, our_ip;
- return NetLoop (NETCONS); /* wait for arp reply */
+ nc_port = 6666; /* default port */
+
+ if (getenv ("ncip")) {
+ nc_ip = getenv_IPaddr ("ncip");
+ if (!nc_ip)
+ return -1; /* ncip is 0.0.0.0 */
+ char *p = strchr (getenv ("ncip"), ':');
+ if (p)
+ 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");
+
+ 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);
+ else
+ memset (nc_ether, 0, sizeof nc_ether); /* force arp request */
+
+ return 0;
}
void nc_putc (char c)
@@ -146,15 +207,18 @@
input_recursion = 1;
net_timeout = 0; /* no timeout */
- while (!nc_buf)
+ while (!input_size)
NetLoop (NETCONS);
input_recursion = 0;
- uchar tmp = nc_buf;
+ uchar c = input_buffer[input_offset];
+ input_offset++;
+ if (input_offset >= sizeof input_buffer)
+ input_offset -= sizeof input_buffer;
+ input_size--;
- nc_buf = 0;
- return tmp;
+ return c;
}
int nc_tstc (void)
@@ -164,7 +228,7 @@
if (input_recursion)
return 0;
- if (nc_buf)
+ if (input_size)
return 1;
eth = eth_get_dev ();
@@ -174,11 +238,11 @@
input_recursion = 1;
net_timeout = 1;
- NetLoop (NETCONS); /* kind of poll */
+ NetLoop (NETCONS); /* kind of poll */
input_recursion = 0;
- return nc_buf != 0;
+ return input_size != 0;
}
int drv_nc_init (void)