diff options
| -rw-r--r-- | doc/README.NetConsole | 3 | ||||
| -rw-r--r-- | drivers/net/netconsole.c | 29 | ||||
| -rwxr-xr-x | tools/netconsole | 18 |
3 files changed, 34 insertions, 16 deletions
diff --git a/doc/README.NetConsole b/doc/README.NetConsole index c8bcb90..070e86a 100644 --- a/doc/README.NetConsole +++ b/doc/README.NetConsole @@ -11,6 +11,9 @@ port of the destination. The format is <ip_addr>:<port>. If <port> is omitted, the value of 6666 is used. If the env var doesn't exist, the broadcast address and port 6666 are used. If it is set to an IP address of 0 (or 0.0.0.0) then no messages are sent to the network. +The source / listening port can be configured separately by setting +the 'ncinport' environment variable and the destination port can be +configured by setting the 'ncoutport' environment variable. For example, if your server IP is 192.168.1.1, you could use: diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index 14243b8..86f5301 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -36,7 +36,8 @@ 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 short nc_out_port; /* target output port */ +static short nc_in_port; /* source input port */ static const char *output_packet; /* used by first send udp */ static int output_packet_len; @@ -71,7 +72,7 @@ void NcStart(void) net_set_arp_handler(nc_wait_arp_handler); pkt = (uchar *)NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE; memcpy(pkt, output_packet, output_packet_len); - NetSendUDPPacket(nc_ether, nc_ip, nc_port, nc_port, + NetSendUDPPacket(nc_ether, nc_ip, nc_out_port, nc_in_port, output_packet_len); } } @@ -80,7 +81,7 @@ int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len) { int end, chunk; - if (dest != nc_port || !len) + if (dest != nc_in_port || !len) return 0; /* not for us */ debug_cond(DEBUG_DEV_PKT, "input: \"%*.*s\"\n", len, len, pkt); @@ -139,7 +140,7 @@ static void nc_send_packet(const char *buf, int len) memcpy(pkt, buf, len); ether = nc_ether; ip = nc_ip; - NetSendUDPPacket(ether, ip, nc_port, nc_port, len); + NetSendUDPPacket(ether, ip, nc_out_port, nc_in_port, len); if (inited) eth_halt(); @@ -148,20 +149,30 @@ static void nc_send_packet(const char *buf, int len) static int nc_start(void) { int netmask, our_ip; + char *p; - nc_port = 6666; /* default port */ + nc_out_port = 6666; /* default port */ + nc_in_port = nc_out_port; if (getenv("ncip")) { - char *p; nc_ip = getenv_IPaddr("ncip"); if (!nc_ip) return -1; /* ncip is 0.0.0.0 */ p = strchr(getenv("ncip"), ':'); - if (p != NULL) - nc_port = simple_strtoul(p + 1, NULL, 10); + if (p != NULL) { + nc_out_port = simple_strtoul(p + 1, NULL, 10); + nc_in_port = nc_out_port; + } } else - nc_ip = ~0; /* ncip is not set */ + nc_ip = ~0; /* ncip is not set, so broadcast */ + + p = getenv("ncoutport"); + if (p != NULL) + nc_out_port = simple_strtoul(p, NULL, 10); + p = getenv("ncinport"); + if (p != NULL) + nc_in_port = simple_strtoul(p, NULL, 10); our_ip = getenv_IPaddr("ipaddr"); netmask = getenv_IPaddr("netmask"); diff --git a/tools/netconsole b/tools/netconsole index c8109bb..1a0ef22 100755 --- a/tools/netconsole +++ b/tools/netconsole @@ -2,7 +2,7 @@ usage() { ( - echo "Usage: $0 <board IP> [board port]" + echo "Usage: $0 <board-IP> [board-port [board-in-port]]" echo "" echo "If port is not specified, '6666' will be used" [ -z "$*" ] && exit 0 @@ -24,9 +24,13 @@ while [ -n "$1" ] ; do done ip=$1 -port=${2:-6666} +board_out_port=${2:-6666} +board_in_port=${3:-${board_out_port}} -if [ -z "${ip}" ] || [ -n "$3" ] ; then +echo Board out port: ${board_out_port} +echo Board in port: ${board_in_port} + +if [ -z "${ip}" ] || [ -n "$4" ] ; then usage "Invalid number of arguments" fi @@ -41,19 +45,19 @@ stty -icanon -echo intr ^T ( if type ncb 2>/dev/null ; then # see if ncb is in $PATH - exec ncb ${port} + exec ncb ${board_out_port} elif [ -x ${0%/*}/ncb ] ; then # maybe it's in the same dir as the netconsole script - exec ${0%/*}/ncb ${port} + exec ${0%/*}/ncb ${board_out_port} else # blah, just use regular netcat - while ${nc} -u -l -p ${port} < /dev/null ; do + while ${nc} -u -l -p ${board_out_port} < /dev/null ; do : done fi ) & pid=$! -${nc} -u ${ip} ${port} +${nc} -u ${ip} ${board_in_port} kill ${pid} 2>/dev/null |