* Copyright 2000 Roland Borde
* Copyright 2000 Paolo Scaffardi
* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
+ * SPDX-License-Identifier: GPL-2.0
*/
/*
* - name of bootfile
* Next step: ARP
*
+ * LINK_LOCAL:
+ *
+ * Prerequisites: - own ethernet address
+ * We want: - own IP address
+ * Next step: ARP
+ *
* RARP:
*
* Prerequisites: - own ethernet address
#include <common.h>
-#include <watchdog.h>
#include <command.h>
+#include <environment.h>
+#include <errno.h>
#include <net.h>
+#if defined(CONFIG_STATUS_LED)
+#include <miiphy.h>
+#include <status_led.h>
+#endif
+#include <watchdog.h>
+#include <linux/compiler.h>
+#include "arp.h"
#include "bootp.h"
-#include "tftp.h"
-#ifdef CONFIG_CMD_RARP
-#include "rarp.h"
+#include "cdp.h"
+#if defined(CONFIG_CMD_DNS)
+#include "dns.h"
#endif
+#include "link_local.h"
#include "nfs.h"
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#include <miiphy.h>
-#endif
+#include "ping.h"
+#include "rarp.h"
#if defined(CONFIG_CMD_SNTP)
#include "sntp.h"
#endif
-#if defined(CONFIG_CDP_VERSION)
-#include <timestamp.h>
-#endif
-#if defined(CONFIG_CMD_DNS)
-#include "dns.h"
-#endif
+#include "tftp.h"
DECLARE_GLOBAL_DATA_PTR;
-#ifndef CONFIG_ARP_TIMEOUT
-/* Milliseconds before trying ARP again */
-# define ARP_TIMEOUT 5000UL
-#else
-# define ARP_TIMEOUT CONFIG_ARP_TIMEOUT
-#endif
-
-
-#ifndef CONFIG_NET_RETRY_COUNT
-# define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */
-#else
-# define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT
-#endif
-
/** BOOTP EXTENTIONS **/
/* Our subnet mask (0=unknown) */
-IPaddr_t NetOurSubnetMask;
+struct in_addr net_netmask;
/* Our gateways IP address */
-IPaddr_t NetOurGatewayIP;
+struct in_addr net_gateway;
/* Our DNS IP address */
-IPaddr_t NetOurDNSIP;
+struct in_addr net_dns_server;
#if defined(CONFIG_BOOTP_DNS2)
/* Our 2nd DNS IP address */
-IPaddr_t NetOurDNS2IP;
+struct in_addr net_dns_server2;
#endif
-/* Our NIS domain */
-char NetOurNISDomain[32] = {0,};
-/* Our hostname */
-char NetOurHostName[32] = {0,};
-/* Our bootpath */
-char NetOurRootPath[64] = {0,};
-/* Our bootfile size in blocks */
-ushort NetBootFileSize;
#ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */
-IPaddr_t Mcast_addr;
+struct in_addr net_mcast_addr;
#endif
/** END OF BOOTP EXTENTIONS **/
-/* The actual transferred size of the bootfile (in bytes) */
-ulong NetBootFileXferSize;
/* Our ethernet address */
-uchar NetOurEther[6];
+u8 net_ethaddr[6];
/* Boot server enet address */
-uchar NetServerEther[6];
+u8 net_server_ethaddr[6];
/* Our IP addr (0 = unknown) */
-IPaddr_t NetOurIP;
+struct in_addr net_ip;
/* Server IP addr (0 = unknown) */
-IPaddr_t NetServerIP;
+struct in_addr net_server_ip;
/* Current receive packet */
-volatile uchar *NetRxPacket;
+uchar *net_rx_packet;
/* Current rx packet length */
-int NetRxPacketLen;
+int net_rx_packet_len;
/* IP packet ID */
-unsigned NetIPID;
+static unsigned net_ip_id;
/* Ethernet bcast address */
-uchar NetBcastAddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-uchar NetEtherNullAddr[6];
+const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+const u8 net_null_ethaddr[6];
#ifdef CONFIG_API
-void (*push_packet)(volatile void *, int len) = 0;
-#endif
-#if defined(CONFIG_CMD_CDP)
-/* Ethernet bcast address */
-uchar NetCDPAddr[6] = { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc };
+void (*push_packet)(void *, int len) = 0;
#endif
/* Network loop state */
-int NetState;
+enum net_loop_state net_state;
/* Tried all network devices */
-int NetRestartWrap;
+int net_restart_wrap;
/* Network loop restarted */
-static int NetRestarted;
+static int net_restarted;
/* At least one device configured */
-static int NetDevExists;
+static int net_dev_exists;
/* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */
/* default is without VLAN */
-ushort NetOurVLAN = 0xFFFF;
+ushort net_our_vlan = 0xFFFF;
/* ditto */
-ushort NetOurNativeVLAN = 0xFFFF;
+ushort net_native_vlan = 0xFFFF;
/* Boot File name */
-char BootFile[128];
-
-#if defined(CONFIG_CMD_PING)
-/* the ip address to ping */
-IPaddr_t NetPingIP;
-
-static void PingStart(void);
-#endif
-
-#if defined(CONFIG_CMD_CDP)
-static void CDPStart(void);
-#endif
+char net_boot_file_name[128];
+/* The actual transferred size of the bootfile (in bytes) */
+u32 net_boot_file_size;
+/* Boot file size in blocks as reported by the DHCP server */
+u32 net_boot_file_expected_size_in_blocks;
#if defined(CONFIG_CMD_SNTP)
/* NTP server IP address */
-IPaddr_t NetNtpServerIP;
+struct in_addr net_ntp_server;
/* offset time from UTC */
-int NetTimeOffset;
+int net_ntp_time_offset;
#endif
-#ifdef CONFIG_NETCONSOLE
-void NcStart(void);
-int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len);
-#endif
-
-volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
-
-/* Receive packet */
-volatile uchar *NetRxPackets[PKTBUFSRX];
-
-/* Current RX packet handler */
-static rxhand_f *packetHandler;
+static uchar net_pkt_buf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
+/* Receive packets */
+uchar *net_rx_packets[PKTBUFSRX];
+/* Current UDP RX packet handler */
+static rxhand_f *udp_packet_handler;
+/* Current ARP RX packet handler */
+static rxhand_f *arp_packet_handler;
#ifdef CONFIG_CMD_TFTPPUT
-static rxhand_icmp_f *packet_icmp_handler; /* Current ICMP rx handler */
+/* Current ICMP rx handler */
+static rxhand_icmp_f *packet_icmp_handler;
#endif
/* Current timeout handler */
-static thand_f *timeHandler;
+static thand_f *time_handler;
/* Time base value */
-static ulong timeStart;
+static ulong time_start;
/* Current timeout value */
-static ulong timeDelta;
+static ulong time_delta;
/* THE transmit packet */
-volatile uchar *NetTxPacket;
+uchar *net_tx_packet;
static int net_check_prereq(enum proto_t protocol);
-static int NetTryCount;
+static int net_try_count;
+
+int __maybe_unused net_busy_flag;
/**********************************************************************/
-IPaddr_t NetArpWaitPacketIP;
-IPaddr_t NetArpWaitReplyIP;
-/* MAC address of waiting packet's destination */
-uchar *NetArpWaitPacketMAC;
-/* THE transmit packet */
-uchar *NetArpWaitTxPacket;
-int NetArpWaitTxPacketSize;
-uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
-ulong NetArpWaitTimerStart;
-int NetArpWaitTry;
+static int on_bootfile(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ if (flags & H_PROGRAMMATIC)
+ return 0;
+
+ switch (op) {
+ case env_op_create:
+ case env_op_overwrite:
+ copy_filename(net_boot_file_name, value,
+ sizeof(net_boot_file_name));
+ break;
+ default:
+ break;
+ }
-void ArpRequest(void)
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(bootfile, on_bootfile);
+
+static int on_ipaddr(const char *name, const char *value, enum env_op op,
+ int flags)
{
- int i;
- volatile uchar *pkt;
- ARP_t *arp;
+ if (flags & H_PROGRAMMATIC)
+ return 0;
- debug("ARP broadcast %d\n", NetArpWaitTry);
+ net_ip = string_to_ip(value);
- pkt = NetTxPacket;
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(ipaddr, on_ipaddr);
- pkt += NetSetEther(pkt, NetBcastAddr, PROT_ARP);
+static int on_gatewayip(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ if (flags & H_PROGRAMMATIC)
+ return 0;
- arp = (ARP_t *) pkt;
+ net_gateway = string_to_ip(value);
- arp->ar_hrd = htons(ARP_ETHER);
- arp->ar_pro = htons(PROT_IP);
- arp->ar_hln = 6;
- arp->ar_pln = 4;
- arp->ar_op = htons(ARPOP_REQUEST);
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(gatewayip, on_gatewayip);
- /* source ET addr */
- memcpy(&arp->ar_data[0], NetOurEther, 6);
- /* source IP addr */
- NetWriteIP((uchar *) &arp->ar_data[6], NetOurIP);
- for (i = 10; i < 16; ++i) {
- /* dest ET addr = 0 */
- arp->ar_data[i] = 0;
- }
+static int on_netmask(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ if (flags & H_PROGRAMMATIC)
+ return 0;
- if ((NetArpWaitPacketIP & NetOurSubnetMask) !=
- (NetOurIP & NetOurSubnetMask)) {
- if (NetOurGatewayIP == 0) {
- puts("## Warning: gatewayip needed but not set\n");
- NetArpWaitReplyIP = NetArpWaitPacketIP;
- } else {
- NetArpWaitReplyIP = NetOurGatewayIP;
- }
- } else {
- NetArpWaitReplyIP = NetArpWaitPacketIP;
- }
+ net_netmask = string_to_ip(value);
- NetWriteIP((uchar *) &arp->ar_data[16], NetArpWaitReplyIP);
- (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE);
+ return 0;
}
+U_BOOT_ENV_CALLBACK(netmask, on_netmask);
-void ArpTimeoutCheck(void)
+static int on_serverip(const char *name, const char *value, enum env_op op,
+ int flags)
{
- ulong t;
+ if (flags & H_PROGRAMMATIC)
+ return 0;
- if (!NetArpWaitPacketIP)
- return;
+ net_server_ip = string_to_ip(value);
- t = get_timer(0);
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(serverip, on_serverip);
- /* check for arp timeout */
- if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) {
- NetArpWaitTry++;
+static int on_nvlan(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ if (flags & H_PROGRAMMATIC)
+ return 0;
- if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) {
- puts("\nARP Retry count exceeded; starting again\n");
- NetArpWaitTry = 0;
- NetStartAgain();
- } else {
- NetArpWaitTimerStart = t;
- ArpRequest();
- }
- }
+ net_native_vlan = string_to_vlan(value);
+
+ return 0;
}
+U_BOOT_ENV_CALLBACK(nvlan, on_nvlan);
-static void NetInitLoop(enum proto_t protocol)
+static int on_vlan(const char *name, const char *value, enum env_op op,
+ int flags)
{
- static int env_changed_id;
- bd_t *bd = gd->bd;
- int env_id = get_env_id();
-
- /* update only when the environment has changed */
- if (env_changed_id != env_id) {
- NetOurIP = getenv_IPaddr("ipaddr");
- NetCopyIP(&bd->bi_ip_addr, &NetOurIP);
- NetOurGatewayIP = getenv_IPaddr("gatewayip");
- NetOurSubnetMask = getenv_IPaddr("netmask");
- NetServerIP = getenv_IPaddr("serverip");
- NetOurNativeVLAN = getenv_VLAN("nvlan");
- NetOurVLAN = getenv_VLAN("vlan");
+ if (flags & H_PROGRAMMATIC)
+ return 0;
+
+ net_our_vlan = string_to_vlan(value);
+
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(vlan, on_vlan);
+
#if defined(CONFIG_CMD_DNS)
- NetOurDNSIP = getenv_IPaddr("dnsip");
+static int on_dnsip(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ if (flags & H_PROGRAMMATIC)
+ return 0;
+
+ net_dns_server = string_to_ip(value);
+
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(dnsip, on_dnsip);
#endif
- env_changed_id = env_id;
+
+/*
+ * Check if autoload is enabled. If so, use either NFS or TFTP to download
+ * the boot file.
+ */
+void net_auto_load(void)
+{
+#if defined(CONFIG_CMD_NFS)
+ const char *s = getenv("autoload");
+
+ if (s != NULL && strcmp(s, "NFS") == 0) {
+ /*
+ * Use NFS to load the bootfile.
+ */
+ nfs_start();
+ return;
+ }
+#endif
+ if (getenv_yesno("autoload") == 0) {
+ /*
+ * Just use BOOTP/RARP to configure system;
+ * Do not use TFTP to load the bootfile.
+ */
+ net_set_state(NETLOOP_SUCCESS);
+ return;
}
+ tftp_start(TFTPGET);
+}
+
+static void net_init_loop(void)
+{
+ if (eth_get_dev())
+ memcpy(net_ethaddr, eth_get_ethaddr(), 6);
return;
}
-/**********************************************************************/
-/*
- * Main network processing loop.
- */
+static void net_clear_handlers(void)
+{
+ net_set_udp_handler(NULL);
+ net_set_arp_handler(NULL);
+ net_set_timeout_handler(0, NULL);
+}
+
+static void net_cleanup_loop(void)
+{
+ net_clear_handlers();
+}
-int NetLoop(enum proto_t protocol)
+void net_init(void)
{
- bd_t *bd = gd->bd;
- int ret = -1;
-
- NetRestarted = 0;
- NetDevExists = 0;
-
- /* XXX problem with bss workaround */
- NetArpWaitPacketMAC = NULL;
- NetArpWaitTxPacket = NULL;
- NetArpWaitPacketIP = 0;
- NetArpWaitReplyIP = 0;
- NetArpWaitTxPacket = NULL;
- NetTxPacket = NULL;
- NetTryCount = 1;
-
- if (!NetTxPacket) {
- int i;
+ static int first_call = 1;
+
+ if (first_call) {
/*
* Setup packet buffers, aligned correctly.
*/
- NetTxPacket = &PktBuf[0] + (PKTALIGN - 1);
- NetTxPacket -= (ulong)NetTxPacket % PKTALIGN;
- for (i = 0; i < PKTBUFSRX; i++)
- NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN;
- }
+ int i;
+
+ net_tx_packet = &net_pkt_buf[0] + (PKTALIGN - 1);
+ net_tx_packet -= (ulong)net_tx_packet % PKTALIGN;
+ for (i = 0; i < PKTBUFSRX; i++) {
+ net_rx_packets[i] = net_tx_packet +
+ (i + 1) * PKTSIZE_ALIGN;
+ }
+ arp_init();
+ net_clear_handlers();
- if (!NetArpWaitTxPacket) {
- NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1);
- NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN;
- NetArpWaitTxPacketSize = 0;
+ /* Only need to setup buffer pointers once. */
+ first_call = 0;
}
- eth_halt();
- eth_set_current();
- if (eth_init(bd) < 0) {
+ net_init_loop();
+}
+
+/**********************************************************************/
+/*
+ * Main network processing loop.
+ */
+
+int net_loop(enum proto_t protocol)
+{
+ int ret = -EINVAL;
+
+ net_restarted = 0;
+ net_dev_exists = 0;
+ net_try_count = 1;
+ debug_cond(DEBUG_INT_STATE, "--- net_loop Entry\n");
+
+ bootstage_mark_name(BOOTSTAGE_ID_ETH_START, "eth_start");
+ net_init();
+ if (eth_is_on_demand_init() || protocol != NETCONS) {
eth_halt();
- return -1;
+ eth_set_current();
+ ret = eth_init();
+ if (ret < 0) {
+ eth_halt();
+ return ret;
+ }
+ } else {
+ eth_init_state_only();
}
-
restart:
- memcpy(NetOurEther, eth_get_dev()->enetaddr, 6);
-
- NetState = NETLOOP_CONTINUE;
+#ifdef CONFIG_USB_KEYBOARD
+ net_busy_flag = 0;
+#endif
+ net_set_state(NETLOOP_CONTINUE);
/*
* Start the ball rolling with the given start function. From
* here on, this code is a state machine driven by received
* packets and timer events.
*/
- NetInitLoop(protocol);
+ debug_cond(DEBUG_INT_STATE, "--- net_loop Init\n");
+ net_init_loop();
switch (net_check_prereq(protocol)) {
case 1:
/* network not configured */
eth_halt();
- return -1;
+ return -ENODEV;
case 2:
/* network device not configured */
break;
case 0:
- NetDevExists = 1;
- NetBootFileXferSize = 0;
+ net_dev_exists = 1;
+ net_boot_file_size = 0;
switch (protocol) {
case TFTPGET:
#ifdef CONFIG_CMD_TFTPPUT
case TFTPPUT:
#endif
/* always use ARP to get server ethernet address */
- TftpStart(protocol);
+ tftp_start(protocol);
break;
#ifdef CONFIG_CMD_TFTPSRV
case TFTPSRV:
- TftpStartServer();
+ tftp_start_server();
break;
#endif
#if defined(CONFIG_CMD_DHCP)
case DHCP:
- BootpTry = 0;
- NetOurIP = 0;
- DhcpRequest(); /* Basically same as BOOTP */
+ bootp_reset();
+ net_ip.s_addr = 0;
+ dhcp_request(); /* Basically same as BOOTP */
break;
#endif
case BOOTP:
- BootpTry = 0;
- NetOurIP = 0;
- BootpRequest();
+ bootp_reset();
+ net_ip.s_addr = 0;
+ bootp_request();
break;
#if defined(CONFIG_CMD_RARP)
case RARP:
- RarpTry = 0;
- NetOurIP = 0;
- RarpRequest();
+ rarp_try = 0;
+ net_ip.s_addr = 0;
+ rarp_request();
break;
#endif
#if defined(CONFIG_CMD_PING)
case PING:
- PingStart();
+ ping_start();
break;
#endif
#if defined(CONFIG_CMD_NFS)
case NFS:
- NfsStart();
+ nfs_start();
break;
#endif
#if defined(CONFIG_CMD_CDP)
case CDP:
- CDPStart();
+ cdp_start();
break;
#endif
-#ifdef CONFIG_NETCONSOLE
+#if defined(CONFIG_NETCONSOLE) && !(CONFIG_SPL_BUILD)
case NETCONS:
- NcStart();
+ nc_start();
break;
#endif
#if defined(CONFIG_CMD_SNTP)
case SNTP:
- SntpStart();
+ sntp_start();
break;
#endif
#if defined(CONFIG_CMD_DNS)
case DNS:
- DnsStart();
+ dns_start();
+ break;
+#endif
+#if defined(CONFIG_CMD_LINK_LOCAL)
+ case LINKLOCAL:
+ link_local_start();
+ break;
+#endif
+#if defined(CONFIG_CMD_BOOTCE)
+ case BOOTME:
+ BootmeStart();
break;
#endif
default:
status_led_set(STATUS_LED_RED, STATUS_LED_ON);
#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
#endif /* CONFIG_MII, ... */
+#ifdef CONFIG_USB_KEYBOARD
+ net_busy_flag = 1;
+#endif
/*
* Main packet reception loop. Loop receiving packets until
- * someone sets `NetState' to a state that terminates.
+ * someone sets `net_state' to a state that terminates.
*/
for (;;) {
WATCHDOG_RESET();
#ifdef CONFIG_SHOW_ACTIVITY
- {
- extern void show_activity(int arg);
- show_activity(1);
- }
+ show_activity(1);
#endif
/*
* Check the ethernet for a new packet. The ethernet
* receive routine will process it.
+ * Most drivers return the most recent packet size, but not
+ * errors that may have happened.
*/
eth_rx();
* Abort if ctrl-c was pressed.
*/
if (ctrlc()) {
+ /* cancel any ARP that may not have completed */
+ net_arp_wait_packet_ip.s_addr = 0;
+
+ net_cleanup_loop();
eth_halt();
+ /* Invalidate the last protocol */
+ eth_set_last_protocol(BOOTP);
+
puts("\nAbort\n");
+ /* include a debug print as well incase the debug
+ messages are directed to stderr */
+ debug_cond(DEBUG_INT_STATE, "--- net_loop Abort!\n");
+ ret = -EINTR;
goto done;
}
- ArpTimeoutCheck();
+ arp_timeout_check();
/*
* Check for a timeout, and run the timeout handler
* if we have one.
*/
- if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) {
+ if (time_handler &&
+ (get_timer(time_start) > time_delta)) {
thand_f *x;
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
* Echo the inverted link state to the fault LED.
*/
if (miiphy_link(eth_get_dev()->name,
- CONFIG_SYS_FAULT_MII_ADDR)) {
+ CONFIG_SYS_FAULT_MII_ADDR))
status_led_set(STATUS_LED_RED, STATUS_LED_OFF);
- } else {
+ else
status_led_set(STATUS_LED_RED, STATUS_LED_ON);
- }
#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
#endif /* CONFIG_MII, ... */
- x = timeHandler;
- timeHandler = (thand_f *)0;
+ debug_cond(DEBUG_INT_STATE, "--- net_loop timeout\n");
+ x = time_handler;
+ time_handler = (thand_f *)0;
(*x)();
}
+ if (net_state == NETLOOP_FAIL)
+ ret = net_start_again();
- switch (NetState) {
-
+ switch (net_state) {
case NETLOOP_RESTART:
- NetRestarted = 1;
+ net_restarted = 1;
goto restart;
case NETLOOP_SUCCESS:
- if (NetBootFileXferSize > 0) {
- char buf[20];
- printf("Bytes transferred = %ld (%lx hex)\n",
- NetBootFileXferSize,
- NetBootFileXferSize);
- sprintf(buf, "%lX", NetBootFileXferSize);
- setenv("filesize", buf);
-
- sprintf(buf, "%lX", (unsigned long)load_addr);
- setenv("fileaddr", buf);
+ net_cleanup_loop();
+ if (net_boot_file_size > 0) {
+ printf("Bytes transferred = %d (%x hex)\n",
+ net_boot_file_size, net_boot_file_size);
+ setenv_hex("filesize", net_boot_file_size);
+ setenv_hex("fileaddr", load_addr);
}
- eth_halt();
- ret = NetBootFileXferSize;
+ if (protocol != NETCONS)
+ eth_halt();
+ else
+ eth_halt_state_only();
+
+ eth_set_last_protocol(protocol);
+
+ ret = net_boot_file_size;
+ debug_cond(DEBUG_INT_STATE, "--- net_loop Success!\n");
goto done;
case NETLOOP_FAIL:
+ net_cleanup_loop();
+ /* Invalidate the last protocol */
+ eth_set_last_protocol(BOOTP);
+ debug_cond(DEBUG_INT_STATE, "--- net_loop Fail!\n");
goto done;
+
+ case NETLOOP_CONTINUE:
+ continue;
}
}
done:
+#ifdef CONFIG_USB_KEYBOARD
+ net_busy_flag = 0;
+#endif
#ifdef CONFIG_CMD_TFTPPUT
/* Clear out the handlers */
- NetSetHandler(NULL);
+ net_set_udp_handler(NULL);
net_set_icmp_handler(NULL);
#endif
return ret;
/**********************************************************************/
-static void
-startAgainTimeout(void)
+static void start_again_timeout_handler(void)
{
- NetState = NETLOOP_RESTART;
+ net_set_state(NETLOOP_RESTART);
}
-static void
-startAgainHandler(uchar *pkt, unsigned dest, IPaddr_t sip,
- unsigned src, unsigned len)
-{
- /* Totally ignore the packet */
-}
-
-void NetStartAgain(void)
+int net_start_again(void)
{
char *nretry;
int retry_forever = 0;
unsigned long retrycnt = 0;
+ int ret;
nretry = getenv("netretry");
if (nretry) {
retrycnt = 1;
else
retrycnt = simple_strtoul(nretry, NULL, 0);
- } else
- retry_forever = 1;
+ } else {
+ retrycnt = 0;
+ retry_forever = 0;
+ }
- if ((!retry_forever) && (NetTryCount >= retrycnt)) {
+ if ((!retry_forever) && (net_try_count >= retrycnt)) {
eth_halt();
- NetState = NETLOOP_FAIL;
- return;
+ net_set_state(NETLOOP_FAIL);
+ /*
+ * We don't provide a way for the protocol to return an error,
+ * but this is almost always the reason.
+ */
+ return -ETIMEDOUT;
}
- NetTryCount++;
+ net_try_count++;
eth_halt();
#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER)
- eth_try_another(!NetRestarted);
-#endif
- eth_init(gd->bd);
- if (NetRestartWrap) {
- NetRestartWrap = 0;
- if (NetDevExists) {
- NetSetTimeout(10000UL, startAgainTimeout);
- NetSetHandler(startAgainHandler);
+ eth_try_another(!net_restarted);
+#endif
+ ret = eth_init();
+ if (net_restart_wrap) {
+ net_restart_wrap = 0;
+ if (net_dev_exists) {
+ net_set_timeout_handler(10000UL,
+ start_again_timeout_handler);
+ net_set_udp_handler(NULL);
} else {
- NetState = NETLOOP_FAIL;
+ net_set_state(NETLOOP_FAIL);
}
} else {
- NetState = NETLOOP_RESTART;
+ net_set_state(NETLOOP_RESTART);
}
+ return ret;
}
/**********************************************************************/
* Miscelaneous bits.
*/
-void
-NetSetHandler(rxhand_f *f)
+static void dummy_handler(uchar *pkt, unsigned dport,
+ struct in_addr sip, unsigned sport,
+ unsigned len)
{
- packetHandler = f;
}
-#ifdef CONFIG_CMD_TFTPPUT
-void net_set_icmp_handler(rxhand_icmp_f *f)
+rxhand_f *net_get_udp_handler(void)
{
- packet_icmp_handler = f;
-}
-#endif
-
-void
-NetSetTimeout(ulong iv, thand_f *f)
-{
- if (iv == 0) {
- timeHandler = (thand_f *)0;
- } else {
- timeHandler = f;
- timeStart = get_timer(0);
- timeDelta = iv;
- }
-}
-
-
-void
-NetSendPacket(volatile uchar *pkt, int len)
-{
- (void) eth_send(pkt, len);
-}
-
-int
-NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len)
-{
- uchar *pkt;
-
- /* convert to new style broadcast */
- if (dest == 0)
- dest = 0xFFFFFFFF;
-
- /* if broadcast, make the ether address a broadcast and don't do ARP */
- if (dest == 0xFFFFFFFF)
- ether = NetBcastAddr;
-
- /*
- * if MAC address was not discovered yet, save the packet and do
- * an ARP request
- */
- if (memcmp(ether, NetEtherNullAddr, 6) == 0) {
-
- debug("sending ARP for %08lx\n", dest);
-
- NetArpWaitPacketIP = dest;
- NetArpWaitPacketMAC = ether;
-
- pkt = NetArpWaitTxPacket;
- pkt += NetSetEther(pkt, NetArpWaitPacketMAC, PROT_IP);
-
- NetSetIP(pkt, dest, dport, sport, len);
- memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket +
- (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len);
-
- /* size of the waiting packet */
- NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) +
- IP_HDR_SIZE + len;
-
- /* and do the ARP request */
- NetArpWaitTry = 1;
- NetArpWaitTimerStart = get_timer(0);
- ArpRequest();
- return 1; /* waiting */
- }
-
- debug("sending UDP to %08lx/%pM\n", dest, ether);
-
- pkt = (uchar *)NetTxPacket;
- pkt += NetSetEther(pkt, ether, PROT_IP);
- NetSetIP(pkt, dest, dport, sport, len);
- (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len);
-
- return 0; /* transmitted */
-}
-
-#if defined(CONFIG_CMD_PING)
-static ushort PingSeqNo;
-
-int PingSend(void)
-{
- static uchar mac[6];
- volatile IP_t *ip;
- volatile ushort *s;
- uchar *pkt;
-
- /* XXX always send arp request */
-
- memcpy(mac, NetEtherNullAddr, 6);
-
- debug("sending ARP for %08lx\n", NetPingIP);
-
- NetArpWaitPacketIP = NetPingIP;
- NetArpWaitPacketMAC = mac;
-
- pkt = NetArpWaitTxPacket;
- pkt += NetSetEther(pkt, mac, PROT_IP);
-
- ip = (volatile IP_t *)pkt;
-
- /*
- * Construct an IP and ICMP header.
- * (need to set no fragment bit - XXX)
- */
- /* IP_HDR_SIZE / 4 (not including UDP) */
- ip->ip_hl_v = 0x45;
- ip->ip_tos = 0;
- ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8);
- ip->ip_id = htons(NetIPID++);
- ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */
- ip->ip_ttl = 255;
- ip->ip_p = 0x01; /* ICMP */
- ip->ip_sum = 0;
- /* already in network byte order */
- NetCopyIP((void *)&ip->ip_src, &NetOurIP);
- /* - "" - */
- NetCopyIP((void *)&ip->ip_dst, &NetPingIP);
- ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
-
- s = &ip->udp_src; /* XXX ICMP starts here */
- s[0] = htons(0x0800); /* echo-request, code */
- s[1] = 0; /* checksum */
- s[2] = 0; /* identifier */
- s[3] = htons(PingSeqNo++); /* sequence number */
- s[1] = ~NetCksum((uchar *)s, 8/2);
-
- /* size of the waiting packet */
- NetArpWaitTxPacketSize =
- (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8;
-
- /* and do the ARP request */
- NetArpWaitTry = 1;
- NetArpWaitTimerStart = get_timer(0);
- ArpRequest();
- return 1; /* waiting */
+ return udp_packet_handler;
}
-static void
-PingTimeout(void)
+void net_set_udp_handler(rxhand_f *f)
{
- eth_halt();
- NetState = NETLOOP_FAIL; /* we did not get the reply */
+ debug_cond(DEBUG_INT_STATE, "--- net_loop UDP handler set (%p)\n", f);
+ if (f == NULL)
+ udp_packet_handler = dummy_handler;
+ else
+ udp_packet_handler = f;
}
-static void
-PingHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
- unsigned len)
+rxhand_f *net_get_arp_handler(void)
{
- if (sip != NetPingIP)
- return;
-
- NetState = NETLOOP_SUCCESS;
+ return arp_packet_handler;
}
-static void PingStart(void)
+void net_set_arp_handler(rxhand_f *f)
{
- printf("Using %s device\n", eth_get_name());
- NetSetTimeout(10000UL, PingTimeout);
- NetSetHandler(PingHandler);
-
- PingSend();
+ debug_cond(DEBUG_INT_STATE, "--- net_loop ARP handler set (%p)\n", f);
+ if (f == NULL)
+ arp_packet_handler = dummy_handler;
+ else
+ arp_packet_handler = f;
}
-#endif
-
-#if defined(CONFIG_CMD_CDP)
-
-#define CDP_DEVICE_ID_TLV 0x0001
-#define CDP_ADDRESS_TLV 0x0002
-#define CDP_PORT_ID_TLV 0x0003
-#define CDP_CAPABILITIES_TLV 0x0004
-#define CDP_VERSION_TLV 0x0005
-#define CDP_PLATFORM_TLV 0x0006
-#define CDP_NATIVE_VLAN_TLV 0x000a
-#define CDP_APPLIANCE_VLAN_TLV 0x000e
-#define CDP_TRIGGER_TLV 0x000f
-#define CDP_POWER_CONSUMPTION_TLV 0x0010
-#define CDP_SYSNAME_TLV 0x0014
-#define CDP_SYSOBJECT_TLV 0x0015
-#define CDP_MANAGEMENT_ADDRESS_TLV 0x0016
-
-#define CDP_TIMEOUT 250UL /* one packet every 250ms */
-static int CDPSeq;
-static int CDPOK;
-
-ushort CDPNativeVLAN;
-ushort CDPApplianceVLAN;
-
-static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20,
- 0x00 };
-
-static ushort CDP_compute_csum(const uchar *buff, ushort len)
+#ifdef CONFIG_CMD_TFTPPUT
+void net_set_icmp_handler(rxhand_icmp_f *f)
{
- ushort csum;
- int odd;
- ulong result = 0;
- ushort leftover;
- ushort *p;
-
- if (len > 0) {
- odd = 1 & (ulong)buff;
- if (odd) {
- result = *buff << 8;
- len--;
- buff++;
- }
- while (len > 1) {
- p = (ushort *)buff;
- result += *p++;
- buff = (uchar *)p;
- if (result & 0x80000000)
- result = (result & 0xFFFF) + (result >> 16);
- len -= 2;
- }
- if (len) {
- leftover = (signed short)(*(const signed char *)buff);
- /* CISCO SUCKS big time! (and blows too):
- * CDP uses the IP checksum algorithm with a twist;
- * for the last byte it *sign* extends and sums.
- */
- result = (result & 0xffff0000) |
- ((result + leftover) & 0x0000ffff);
- }
- while (result >> 16)
- result = (result & 0xFFFF) + (result >> 16);
-
- if (odd)
- result = ((result >> 8) & 0xff) |
- ((result & 0xff) << 8);
- }
-
- /* add up 16-bit and 17-bit words for 17+c bits */
- result = (result & 0xffff) + (result >> 16);
- /* add up 16-bit and 2-bit for 16+c bit */
- result = (result & 0xffff) + (result >> 16);
- /* add up carry.. */
- result = (result & 0xffff) + (result >> 16);
-
- /* negate */
- csum = ~(ushort)result;
-
- /* run time endian detection */
- if (csum != htons(csum)) /* little endian */
- csum = htons(csum);
-
- return csum;
+ packet_icmp_handler = f;
}
-
-int CDPSendTrigger(void)
-{
- volatile uchar *pkt;
- volatile ushort *s;
- volatile ushort *cp;
- Ethernet_t *et;
- int len;
- ushort chksum;
-#if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \
- defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM)
- char buf[32];
#endif
- pkt = NetTxPacket;
- et = (Ethernet_t *)pkt;
-
- /* NOTE: trigger sent not on any VLAN */
-
- /* form ethernet header */
- memcpy(et->et_dest, NetCDPAddr, 6);
- memcpy(et->et_src, NetOurEther, 6);
-
- pkt += ETHER_HDR_SIZE;
-
- /* SNAP header */
- memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr));
- pkt += sizeof(CDP_SNAP_hdr);
-
- /* CDP header */
- *pkt++ = 0x02; /* CDP version 2 */
- *pkt++ = 180; /* TTL */
- s = (volatile ushort *)pkt;
- cp = s;
- /* checksum (0 for later calculation) */
- *s++ = htons(0);
-
- /* CDP fields */
-#ifdef CONFIG_CDP_DEVICE_ID
- *s++ = htons(CDP_DEVICE_ID_TLV);
- *s++ = htons(CONFIG_CDP_DEVICE_ID);
- sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%pm", NetOurEther);
- memcpy((uchar *)s, buf, 16);
- s += 16 / 2;
-#endif
-
-#ifdef CONFIG_CDP_PORT_ID
- *s++ = htons(CDP_PORT_ID_TLV);
- memset(buf, 0, sizeof(buf));
- sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index());
- len = strlen(buf);
- if (len & 1) /* make it even */
- len++;
- *s++ = htons(len + 4);
- memcpy((uchar *)s, buf, len);
- s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_CAPABILITIES
- *s++ = htons(CDP_CAPABILITIES_TLV);
- *s++ = htons(8);
- *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES);
- s += 2;
-#endif
-
-#ifdef CONFIG_CDP_VERSION
- *s++ = htons(CDP_VERSION_TLV);
- memset(buf, 0, sizeof(buf));
- strcpy(buf, CONFIG_CDP_VERSION);
- len = strlen(buf);
- if (len & 1) /* make it even */
- len++;
- *s++ = htons(len + 4);
- memcpy((uchar *)s, buf, len);
- s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_PLATFORM
- *s++ = htons(CDP_PLATFORM_TLV);
- memset(buf, 0, sizeof(buf));
- strcpy(buf, CONFIG_CDP_PLATFORM);
- len = strlen(buf);
- if (len & 1) /* make it even */
- len++;
- *s++ = htons(len + 4);
- memcpy((uchar *)s, buf, len);
- s += len / 2;
-#endif
-
-#ifdef CONFIG_CDP_TRIGGER
- *s++ = htons(CDP_TRIGGER_TLV);
- *s++ = htons(8);
- *(ulong *)s = htonl(CONFIG_CDP_TRIGGER);
- s += 2;
-#endif
-
-#ifdef CONFIG_CDP_POWER_CONSUMPTION
- *s++ = htons(CDP_POWER_CONSUMPTION_TLV);
- *s++ = htons(6);
- *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION);
-#endif
-
- /* length of ethernet packet */
- len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE);
- et->et_protlen = htons(len);
-
- len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr);
- chksum = CDP_compute_csum((uchar *)NetTxPacket + len,
- (uchar *)s - (NetTxPacket + len));
- if (chksum == 0)
- chksum = 0xFFFF;
- *cp = htons(chksum);
-
- (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket);
- return 0;
-}
-
-static void
-CDPTimeout(void)
+void net_set_timeout_handler(ulong iv, thand_f *f)
{
- CDPSeq++;
-
- if (CDPSeq < 3) {
- NetSetTimeout(CDP_TIMEOUT, CDPTimeout);
- CDPSendTrigger();
- return;
+ if (iv == 0) {
+ debug_cond(DEBUG_INT_STATE,
+ "--- net_loop timeout handler cancelled\n");
+ time_handler = (thand_f *)0;
+ } else {
+ debug_cond(DEBUG_INT_STATE,
+ "--- net_loop timeout handler set (%p)\n", f);
+ time_handler = f;
+ time_start = get_timer(0);
+ time_delta = iv * CONFIG_SYS_HZ / 1000;
}
-
- /* if not OK try again */
- if (!CDPOK)
- NetStartAgain();
- else
- NetState = NETLOOP_SUCCESS;
-}
-
-static void
-CDPDummyHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
- unsigned len)
-{
- /* nothing */
}
-static void
-CDPHandler(const uchar *pkt, unsigned len)
+int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, int sport,
+ int payload_len)
{
- const uchar *t;
- const ushort *ss;
- ushort type, tlen;
- uchar applid;
- ushort vlan, nvlan;
-
- /* minimum size? */
- if (len < sizeof(CDP_SNAP_hdr) + 4)
- goto pkt_short;
-
- /* check for valid CDP SNAP header */
- if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0)
- return;
-
- pkt += sizeof(CDP_SNAP_hdr);
- len -= sizeof(CDP_SNAP_hdr);
+ uchar *pkt;
+ int eth_hdr_size;
+ int pkt_hdr_size;
- /* Version of CDP protocol must be >= 2 and TTL != 0 */
- if (pkt[0] < 0x02 || pkt[1] == 0)
- return;
+ /* make sure the net_tx_packet is initialized (net_init() was called) */
+ assert(net_tx_packet != NULL);
+ if (net_tx_packet == NULL)
+ return -1;
- /*
- * if version is greater than 0x02 maybe we'll have a problem;
- * output a warning
- */
- if (pkt[0] != 0x02)
- printf("** WARNING: CDP packet received with a protocol version %d > 2\n",
- pkt[0] & 0xff);
+ /* convert to new style broadcast */
+ if (dest.s_addr == 0)
+ dest.s_addr = 0xFFFFFFFF;
- if (CDP_compute_csum(pkt, len) != 0)
- return;
+ /* if broadcast, make the ether address a broadcast and don't do ARP */
+ if (dest.s_addr == 0xFFFFFFFF)
+ ether = (uchar *)net_bcast_ethaddr;
- pkt += 4;
- len -= 4;
+ pkt = (uchar *)net_tx_packet;
- vlan = htons(-1);
- nvlan = htons(-1);
- while (len > 0) {
- if (len < 4)
- goto pkt_short;
+ eth_hdr_size = net_set_ether(pkt, ether, PROT_IP);
+ pkt += eth_hdr_size;
+ net_set_udp_header(pkt, dest, dport, sport, payload_len);
+ pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE;
- ss = (const ushort *)pkt;
- type = ntohs(ss[0]);
- tlen = ntohs(ss[1]);
- if (tlen > len)
- goto pkt_short;
+ /* if MAC address was not discovered yet, do an ARP request */
+ if (memcmp(ether, net_null_ethaddr, 6) == 0) {
+ debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest);
- pkt += tlen;
- len -= tlen;
+ /* save the ip and eth addr for the packet to send after arp */
+ net_arp_wait_packet_ip = dest;
+ arp_wait_packet_ethaddr = ether;
- ss += 2; /* point ss to the data of the TLV */
- tlen -= 4;
+ /* size of the waiting packet */
+ arp_wait_tx_packet_size = pkt_hdr_size + payload_len;
- switch (type) {
- case CDP_DEVICE_ID_TLV:
- break;
- case CDP_ADDRESS_TLV:
- break;
- case CDP_PORT_ID_TLV:
- break;
- case CDP_CAPABILITIES_TLV:
- break;
- case CDP_VERSION_TLV:
- break;
- case CDP_PLATFORM_TLV:
- break;
- case CDP_NATIVE_VLAN_TLV:
- nvlan = *ss;
- break;
- case CDP_APPLIANCE_VLAN_TLV:
- t = (const uchar *)ss;
- while (tlen > 0) {
- if (tlen < 3)
- goto pkt_short;
-
- applid = t[0];
- ss = (const ushort *)(t + 1);
-
-#ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE
- if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE)
- vlan = *ss;
-#else
- /* XXX will this work; dunno */
- vlan = ntohs(*ss);
-#endif
- t += 3; tlen -= 3;
- }
- break;
- case CDP_TRIGGER_TLV:
- break;
- case CDP_POWER_CONSUMPTION_TLV:
- break;
- case CDP_SYSNAME_TLV:
- break;
- case CDP_SYSOBJECT_TLV:
- break;
- case CDP_MANAGEMENT_ADDRESS_TLV:
- break;
- }
+ /* and do the ARP request */
+ arp_wait_try = 1;
+ arp_wait_timer_start = get_timer(0);
+ arp_request();
+ return 1; /* waiting */
+ } else {
+ debug_cond(DEBUG_DEV_PKT, "sending UDP to %pI4/%pM\n",
+ &dest, ether);
+ net_send_packet(net_tx_packet, pkt_hdr_size + payload_len);
+ return 0; /* transmitted */
}
-
- CDPApplianceVLAN = vlan;
- CDPNativeVLAN = nvlan;
-
- CDPOK = 1;
- return;
-
- pkt_short:
- printf("** CDP packet is too short\n");
- return;
}
-static void CDPStart(void)
-{
- printf("Using %s device\n", eth_get_name());
- CDPSeq = 0;
- CDPOK = 0;
-
- CDPNativeVLAN = htons(-1);
- CDPApplianceVLAN = htons(-1);
-
- NetSetTimeout(CDP_TIMEOUT, CDPTimeout);
- NetSetHandler(CDPDummyHandler);
-
- CDPSendTrigger();
-}
-#endif
-
#ifdef CONFIG_IP_DEFRAG
/*
* This function collects fragments in a single packet, according
static struct rpc_t rpc_specimen;
#define IP_PKTSIZE (CONFIG_NET_MAXDEFRAG + sizeof(rpc_specimen.u.reply))
-#define IP_MAXUDP (IP_PKTSIZE - IP_HDR_SIZE_NO_UDP)
+#define IP_MAXUDP (IP_PKTSIZE - IP_HDR_SIZE)
/*
* this is the packet being assembled, either data or frag control.
u16 unused;
};
-static IP_t *__NetDefragment(IP_t *ip, int *lenp)
+static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
{
- static uchar pkt_buff[IP_PKTSIZE] __attribute__((aligned(PKTALIGN)));
+ static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
static u16 first_hole, total_len;
struct hole *payload, *thisfrag, *h, *newh;
- IP_t *localip = (IP_t *)pkt_buff;
+ struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
uchar *indata = (uchar *)ip;
int offset8, start, len, done = 0;
u16 ip_off = ntohs(ip->ip_off);
/* payload starts after IP header, this fragment is in there */
- payload = (struct hole *)(pkt_buff + IP_HDR_SIZE_NO_UDP);
+ payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
offset8 = (ip_off & IP_OFFS);
thisfrag = payload + offset8;
start = offset8 * 8;
- len = ntohs(ip->ip_len) - IP_HDR_SIZE_NO_UDP;
+ len = ntohs(ip->ip_len) - IP_HDR_SIZE;
if (start + len > IP_MAXUDP) /* fragment extends too far */
return NULL;
payload[0].prev_hole = 0;
first_hole = 0;
/* any IP header will work, copy the first we received */
- memcpy(localip, ip, IP_HDR_SIZE_NO_UDP);
+ memcpy(localip, ip, IP_HDR_SIZE);
}
/*
}
/* finally copy this fragment and possibly return whole packet */
- memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE_NO_UDP, len);
+ memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
if (!done)
return NULL;
localip->ip_len = htons(total_len);
- *lenp = total_len + IP_HDR_SIZE_NO_UDP;
+ *lenp = total_len + IP_HDR_SIZE;
return localip;
}
-static inline IP_t *NetDefragment(IP_t *ip, int *lenp)
+static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
+ int *lenp)
{
u16 ip_off = ntohs(ip->ip_off);
if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
return ip; /* not a fragment */
- return __NetDefragment(ip, lenp);
+ return __net_defragment(ip, lenp);
}
#else /* !CONFIG_IP_DEFRAG */
-static inline IP_t *NetDefragment(IP_t *ip, int *lenp)
+static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
+ int *lenp)
{
u16 ip_off = ntohs(ip->ip_off);
if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
*
* @parma ip IP packet containing the ICMP
*/
-static void receive_icmp(IP_t *ip, int len, IPaddr_t src_ip, Ethernet_t *et)
+static void receive_icmp(struct ip_udp_hdr *ip, int len,
+ struct in_addr src_ip, struct ethernet_hdr *et)
{
- ICMP_t *icmph = (ICMP_t *)&ip->udp_src;
+ struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src;
switch (icmph->type) {
case ICMP_REDIRECT:
if (icmph->code != ICMP_REDIR_HOST)
return;
printf(" ICMP Host Redirect to %pI4 ",
- &icmph->un.gateway);
+ &icmph->un.gateway);
break;
+ default:
#if defined(CONFIG_CMD_PING)
- case ICMP_ECHO_REPLY:
- /*
- * IP header OK. Pass the packet to the
- * current handler.
- */
- /*
- * XXX point to ip packet - should this use
- * packet_icmp_handler?
- */
- (*packetHandler)((uchar *)ip, 0, src_ip, 0, 0);
- break;
- case ICMP_ECHO_REQUEST:
- debug("Got ICMP ECHO REQUEST, return %d bytes\n",
- ETHER_HDR_SIZE + len);
-
- memcpy(&et->et_dest[0], &et->et_src[0], 6);
- memcpy(&et->et_src[0], NetOurEther, 6);
-
- ip->ip_sum = 0;
- ip->ip_off = 0;
- NetCopyIP((void *)&ip->ip_dst, &ip->ip_src);
- NetCopyIP((void *)&ip->ip_src, &NetOurIP);
- ip->ip_sum = ~NetCksum((uchar *)ip,
- IP_HDR_SIZE_NO_UDP >> 1);
-
- icmph->type = ICMP_ECHO_REPLY;
- icmph->checksum = 0;
- icmph->checksum = ~NetCksum((uchar *)icmph,
- (len - IP_HDR_SIZE_NO_UDP) >> 1);
- (void) eth_send((uchar *)et,
- ETHER_HDR_SIZE + len);
- break;
+ ping_receive(et, ip, len);
#endif
- default:
#ifdef CONFIG_CMD_TFTPPUT
if (packet_icmp_handler)
packet_icmp_handler(icmph->type, icmph->code,
- ntohs(ip->udp_dst), src_ip, ntohs(ip->udp_src),
- icmph->un.data, ntohs(ip->udp_len));
+ ntohs(ip->udp_dst), src_ip,
+ ntohs(ip->udp_src), icmph->un.data,
+ ntohs(ip->udp_len));
#endif
break;
}
}
-void
-NetReceive(volatile uchar *inpkt, int len)
+void net_process_received_packet(uchar *in_packet, int len)
{
- Ethernet_t *et;
- IP_t *ip;
- ARP_t *arp;
- IPaddr_t tmp;
- IPaddr_t src_ip;
- int x;
- uchar *pkt;
+ struct ethernet_hdr *et;
+ struct ip_udp_hdr *ip;
+ struct in_addr dst_ip;
+ struct in_addr src_ip;
+ int eth_proto;
#if defined(CONFIG_CMD_CDP)
int iscdp;
#endif
ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid;
- debug("packet received\n");
+ debug_cond(DEBUG_NET_PKT, "packet received\n");
- NetRxPacket = inpkt;
- NetRxPacketLen = len;
- et = (Ethernet_t *)inpkt;
+ net_rx_packet = in_packet;
+ net_rx_packet_len = len;
+ et = (struct ethernet_hdr *)in_packet;
/* too small packet? */
if (len < ETHER_HDR_SIZE)
#ifdef CONFIG_API
if (push_packet) {
- (*push_packet)(inpkt, len);
+ (*push_packet)(in_packet, len);
return;
}
#endif
#if defined(CONFIG_CMD_CDP)
/* keep track if packet is CDP */
- iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0;
+ iscdp = is_cdp_packet(et->et_dest);
#endif
- myvlanid = ntohs(NetOurVLAN);
+ myvlanid = ntohs(net_our_vlan);
if (myvlanid == (ushort)-1)
myvlanid = VLAN_NONE;
- mynvlanid = ntohs(NetOurNativeVLAN);
+ mynvlanid = ntohs(net_native_vlan);
if (mynvlanid == (ushort)-1)
mynvlanid = VLAN_NONE;
- x = ntohs(et->et_protlen);
-
- debug("packet received\n");
+ eth_proto = ntohs(et->et_protlen);
- if (x < 1514) {
+ if (eth_proto < 1514) {
+ struct e802_hdr *et802 = (struct e802_hdr *)et;
/*
- * Got a 802 packet. Check the other protocol field.
+ * Got a 802.2 packet. Check the other protocol field.
+ * XXX VLAN over 802.2+SNAP not implemented!
*/
- x = ntohs(et->et_prot);
+ eth_proto = ntohs(et802->et_prot);
- ip = (IP_t *)(inpkt + E802_HDR_SIZE);
+ ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE);
len -= E802_HDR_SIZE;
- } else if (x != PROT_VLAN) { /* normal packet */
- ip = (IP_t *)(inpkt + ETHER_HDR_SIZE);
+ } else if (eth_proto != PROT_VLAN) { /* normal packet */
+ ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE);
len -= ETHER_HDR_SIZE;
} else { /* VLAN packet */
- VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et;
+ struct vlan_ethernet_hdr *vet =
+ (struct vlan_ethernet_hdr *)et;
- debug("VLAN packet received\n");
+ debug_cond(DEBUG_NET_PKT, "VLAN packet received\n");
/* too small packet? */
if (len < VLAN_ETHER_HDR_SIZE)
return;
/* if no VLAN active */
- if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE
+ if ((ntohs(net_our_vlan) & VLAN_IDMASK) == VLAN_NONE
#if defined(CONFIG_CMD_CDP)
&& iscdp == 0
#endif
cti = ntohs(vet->vet_tag);
vlanid = cti & VLAN_IDMASK;
- x = ntohs(vet->vet_type);
+ eth_proto = ntohs(vet->vet_type);
- ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE);
+ ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE);
len -= VLAN_ETHER_HDR_SIZE;
}
- debug("Receive from protocol 0x%x\n", x);
+ debug_cond(DEBUG_NET_PKT, "Receive from protocol 0x%x\n", eth_proto);
#if defined(CONFIG_CMD_CDP)
if (iscdp) {
- CDPHandler((uchar *)ip, len);
+ cdp_receive((uchar *)ip, len);
return;
}
#endif
return;
}
- switch (x) {
-
+ switch (eth_proto) {
case PROT_ARP:
- /*
- * We have to deal with two types of ARP packets:
- * - REQUEST packets will be answered by sending our
- * IP address - if we know it.
- * - REPLY packates are expected only after we asked
- * for the TFTP server's or the gateway's ethernet
- * address; so if we receive such a packet, we set
- * the server ethernet address
- */
- debug("Got ARP\n");
-
- arp = (ARP_t *)ip;
- if (len < ARP_HDR_SIZE) {
- printf("bad length %d < %d\n", len, ARP_HDR_SIZE);
- return;
- }
- if (ntohs(arp->ar_hrd) != ARP_ETHER)
- return;
- if (ntohs(arp->ar_pro) != PROT_IP)
- return;
- if (arp->ar_hln != 6)
- return;
- if (arp->ar_pln != 4)
- return;
-
- if (NetOurIP == 0)
- return;
-
- if (NetReadIP(&arp->ar_data[16]) != NetOurIP)
- return;
-
- switch (ntohs(arp->ar_op)) {
- case ARPOP_REQUEST:
- /* reply with our IP address */
- debug("Got ARP REQUEST, return our IP\n");
- pkt = (uchar *)et;
- pkt += NetSetEther(pkt, et->et_src, PROT_ARP);
- arp->ar_op = htons(ARPOP_REPLY);
- memcpy(&arp->ar_data[10], &arp->ar_data[0], 6);
- NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]);
- memcpy(&arp->ar_data[0], NetOurEther, 6);
- NetCopyIP(&arp->ar_data[6], &NetOurIP);
- (void) eth_send((uchar *)et,
- (pkt - (uchar *)et) + ARP_HDR_SIZE);
- return;
-
- case ARPOP_REPLY: /* arp reply */
- /* are we waiting for a reply */
- if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC)
- break;
-
-#ifdef CONFIG_KEEP_SERVERADDR
- if (NetServerIP == NetArpWaitPacketIP) {
- char buf[20];
- sprintf(buf, "%pM", arp->ar_data);
- setenv("serveraddr", buf);
- }
-#endif
-
- debug("Got ARP REPLY, set server/gtwy eth addr (%pM)\n",
- arp->ar_data);
-
- tmp = NetReadIP(&arp->ar_data[6]);
-
- /* matched waiting packet's address */
- if (tmp == NetArpWaitReplyIP) {
- debug("Got it\n");
- /* save address for later use */
- memcpy(NetArpWaitPacketMAC,
- &arp->ar_data[0], 6);
-
-#ifdef CONFIG_NETCONSOLE
- (*packetHandler)(0, 0, 0, 0, 0);
-#endif
- /* modify header, and transmit it */
- memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6);
- (void) eth_send(NetArpWaitTxPacket,
- NetArpWaitTxPacketSize);
-
- /* no arp request pending now */
- NetArpWaitPacketIP = 0;
- NetArpWaitTxPacketSize = 0;
- NetArpWaitPacketMAC = NULL;
-
- }
- return;
- default:
- debug("Unexpected ARP opcode 0x%x\n",
- ntohs(arp->ar_op));
- return;
- }
+ arp_receive(et, ip, len);
break;
#ifdef CONFIG_CMD_RARP
case PROT_RARP:
- debug("Got RARP\n");
- arp = (ARP_t *)ip;
- if (len < ARP_HDR_SIZE) {
- printf("bad length %d < %d\n", len, ARP_HDR_SIZE);
- return;
- }
-
- if ((ntohs(arp->ar_op) != RARPOP_REPLY) ||
- (ntohs(arp->ar_hrd) != ARP_ETHER) ||
- (ntohs(arp->ar_pro) != PROT_IP) ||
- (arp->ar_hln != 6) || (arp->ar_pln != 4)) {
-
- puts("invalid RARP header\n");
- } else {
- NetCopyIP(&NetOurIP, &arp->ar_data[16]);
- if (NetServerIP == 0)
- NetCopyIP(&NetServerIP, &arp->ar_data[6]);
- memcpy(NetServerEther, &arp->ar_data[0], 6);
-
- (*packetHandler)(0, 0, 0, 0, 0);
- }
+ rarp_receive(ip, len);
break;
#endif
case PROT_IP:
- debug("Got IP\n");
+ debug_cond(DEBUG_NET_PKT, "Got IP\n");
/* Before we start poking the header, make sure it is there */
- if (len < IP_HDR_SIZE) {
- debug("len bad %d < %lu\n", len, (ulong)IP_HDR_SIZE);
+ if (len < IP_UDP_HDR_SIZE) {
+ debug("len bad %d < %lu\n", len,
+ (ulong)IP_UDP_HDR_SIZE);
return;
}
/* Check the packet length */
if (len < ntohs(ip->ip_len)) {
- printf("len bad %d < %d\n", len, ntohs(ip->ip_len));
+ debug("len bad %d < %d\n", len, ntohs(ip->ip_len));
return;
}
len = ntohs(ip->ip_len);
- debug("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff);
+ debug_cond(DEBUG_NET_PKT, "len=%d, v=%02x\n",
+ len, ip->ip_hl_v & 0xff);
/* Can't deal with anything except IPv4 */
if ((ip->ip_hl_v & 0xf0) != 0x40)
if ((ip->ip_hl_v & 0x0f) > 0x05)
return;
/* Check the Checksum of the header */
- if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) {
- puts("checksum bad\n");
+ if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) {
+ debug("checksum bad\n");
return;
}
/* If it is not for us, ignore it */
- tmp = NetReadIP(&ip->ip_dst);
- if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) {
+ dst_ip = net_read_ip(&ip->ip_dst);
+ if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr &&
+ dst_ip.s_addr != 0xFFFFFFFF) {
#ifdef CONFIG_MCAST_TFTP
- if (Mcast_addr != tmp)
+ if (net_mcast_addr != dst_ip)
#endif
return;
}
/* Read source IP address for later use */
- src_ip = NetReadIP(&ip->ip_src);
+ src_ip = net_read_ip(&ip->ip_src);
/*
* The function returns the unchanged packet if it's not
* a fragment, and either the complete packet or NULL if
* it is a fragment (if !CONFIG_IP_DEFRAG, it returns NULL)
*/
- ip = NetDefragment(ip, &len);
+ ip = net_defragment(ip, &len);
if (!ip)
return;
/*
return;
}
+ debug_cond(DEBUG_DEV_PKT,
+ "received UDP (to=%pI4, from=%pI4, len=%d)\n",
+ &dst_ip, &src_ip, len);
+
#ifdef CONFIG_UDP_CHECKSUM
if (ip->udp_xsum != 0) {
ulong xsum;
xsum = ip->ip_p;
xsum += (ntohs(ip->udp_len));
- xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff;
- xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff;
- xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff;
- xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff;
+ xsum += (ntohl(ip->ip_src.s_addr) >> 16) & 0x0000ffff;
+ xsum += (ntohl(ip->ip_src.s_addr) >> 0) & 0x0000ffff;
+ xsum += (ntohl(ip->ip_dst.s_addr) >> 16) & 0x0000ffff;
+ xsum += (ntohl(ip->ip_dst.s_addr) >> 0) & 0x0000ffff;
sumlen = ntohs(ip->udp_len);
- sumptr = (ushort *) &(ip->udp_src);
+ sumptr = (ushort *)&(ip->udp_src);
while (sumlen > 1) {
ushort sumdata;
if (sumlen > 0) {
ushort sumdata;
- sumdata = *(unsigned char *) sumptr;
+ sumdata = *(unsigned char *)sumptr;
sumdata = (sumdata << 8) & 0xff00;
xsum += sumdata;
}
}
if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) {
printf(" UDP wrong checksum %08lx %08x\n",
- xsum, ntohs(ip->udp_xsum));
+ xsum, ntohs(ip->udp_xsum));
return;
}
}
#endif
-
-#ifdef CONFIG_NETCONSOLE
- nc_input_packet((uchar *)ip + IP_HDR_SIZE,
- ntohs(ip->udp_dst),
- ntohs(ip->udp_src),
- ntohs(ip->udp_len) - 8);
+#if defined(CONFIG_NETCONSOLE) && !(CONFIG_SPL_BUILD)
+ nc_input_packet((uchar *)ip + IP_UDP_HDR_SIZE,
+ src_ip,
+ ntohs(ip->udp_dst),
+ ntohs(ip->udp_src),
+ ntohs(ip->udp_len) - UDP_HDR_SIZE);
#endif
/*
- * IP header OK. Pass the packet to the current handler.
+ * IP header OK. Pass the packet to the current handler.
*/
- (*packetHandler)((uchar *)ip + IP_HDR_SIZE,
- ntohs(ip->udp_dst),
- src_ip,
- ntohs(ip->udp_src),
- ntohs(ip->udp_len) - 8);
+ (*udp_packet_handler)((uchar *)ip + IP_UDP_HDR_SIZE,
+ ntohs(ip->udp_dst),
+ src_ip,
+ ntohs(ip->udp_src),
+ ntohs(ip->udp_len) - UDP_HDR_SIZE);
break;
}
}
-
/**********************************************************************/
static int net_check_prereq(enum proto_t protocol)
{
switch (protocol) {
- /* Fall through */
#if defined(CONFIG_CMD_PING)
case PING:
- if (NetPingIP == 0) {
+ if (net_ping_ip.s_addr == 0) {
puts("*** ERROR: ping address not given\n");
return 1;
}
#endif
#if defined(CONFIG_CMD_SNTP)
case SNTP:
- if (NetNtpServerIP == 0) {
+ if (net_ntp_server.s_addr == 0) {
puts("*** ERROR: NTP server address not given\n");
return 1;
}
#endif
#if defined(CONFIG_CMD_DNS)
case DNS:
- if (NetOurDNSIP == 0) {
+ if (net_dns_server.s_addr == 0) {
puts("*** ERROR: DNS server address not given\n");
return 1;
}
#if defined(CONFIG_CMD_NFS)
case NFS:
#endif
+ /* Fall through */
case TFTPGET:
case TFTPPUT:
- if (NetServerIP == 0) {
+ if (net_server_ip.s_addr == 0) {
puts("*** ERROR: `serverip' not set\n");
return 1;
}
#endif
/* Fall through */
+ case BOOTME:
case NETCONS:
case TFTPSRV:
- if (NetOurIP == 0) {
+ if (net_ip.s_addr == 0) {
puts("*** ERROR: `ipaddr' not set\n");
return 1;
}
case BOOTP:
case CDP:
case DHCP:
- if (memcmp(NetOurEther, "\0\0\0\0\0\0", 6) == 0) {
- extern int eth_get_dev_index(void);
+ case LINKLOCAL:
+ if (memcmp(net_ethaddr, "\0\0\0\0\0\0", 6) == 0) {
int num = eth_get_dev_index();
switch (num) {
break;
default:
printf("*** ERROR: `eth%daddr' not set\n",
- num);
+ num);
break;
}
- NetStartAgain();
+ net_start_again();
return 2;
}
/* Fall through */
/**********************************************************************/
int
-NetCksumOk(uchar *ptr, int len)
-{
- return !((NetCksum(ptr, len) + 1) & 0xfffe);
-}
-
-
-unsigned
-NetCksum(uchar *ptr, int len)
-{
- ulong xsum;
- ushort *p = (ushort *)ptr;
-
- xsum = 0;
- while (len-- > 0)
- xsum += *p++;
- xsum = (xsum & 0xffff) + (xsum >> 16);
- xsum = (xsum & 0xffff) + (xsum >> 16);
- return xsum & 0xffff;
-}
-
-int
-NetEthHdrSize(void)
+net_eth_hdr_size(void)
{
ushort myvlanid;
- myvlanid = ntohs(NetOurVLAN);
+ myvlanid = ntohs(net_our_vlan);
if (myvlanid == (ushort)-1)
myvlanid = VLAN_NONE;
VLAN_ETHER_HDR_SIZE;
}
-int
-NetSetEther(volatile uchar *xet, uchar * addr, uint prot)
+int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot)
{
- Ethernet_t *et = (Ethernet_t *)xet;
+ struct ethernet_hdr *et = (struct ethernet_hdr *)xet;
ushort myvlanid;
- myvlanid = ntohs(NetOurVLAN);
+ myvlanid = ntohs(net_our_vlan);
if (myvlanid == (ushort)-1)
myvlanid = VLAN_NONE;
- memcpy(et->et_dest, addr, 6);
- memcpy(et->et_src, NetOurEther, 6);
+ memcpy(et->et_dest, dest_ethaddr, 6);
+ memcpy(et->et_src, net_ethaddr, 6);
if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) {
et->et_protlen = htons(prot);
return ETHER_HDR_SIZE;
} else {
- VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet;
+ struct vlan_ethernet_hdr *vet =
+ (struct vlan_ethernet_hdr *)xet;
vet->vet_vlan_type = htons(PROT_VLAN);
vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK));
}
}
-void
-NetSetIP(volatile uchar *xip, IPaddr_t dest, int dport, int sport, int len)
+int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot)
{
- IP_t *ip = (IP_t *)xip;
+ ushort protlen;
- /*
- * If the data is an odd number of bytes, zero the
- * byte after the last byte so that the checksum
- * will work.
- */
- if (len & 1)
- xip[IP_HDR_SIZE + len] = 0;
+ memcpy(et->et_dest, addr, 6);
+ memcpy(et->et_src, net_ethaddr, 6);
+ protlen = ntohs(et->et_protlen);
+ if (protlen == PROT_VLAN) {
+ struct vlan_ethernet_hdr *vet =
+ (struct vlan_ethernet_hdr *)et;
+ vet->vet_type = htons(prot);
+ return VLAN_ETHER_HDR_SIZE;
+ } else if (protlen > 1514) {
+ et->et_protlen = htons(prot);
+ return ETHER_HDR_SIZE;
+ } else {
+ /* 802.2 + SNAP */
+ struct e802_hdr *et802 = (struct e802_hdr *)et;
+ et802->et_prot = htons(prot);
+ return E802_HDR_SIZE;
+ }
+}
+
+void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source)
+{
+ struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
/*
- * Construct an IP and UDP header.
- * (need to set no fragment bit - XXX)
+ * Construct an IP header.
*/
/* IP_HDR_SIZE / 4 (not including UDP) */
ip->ip_hl_v = 0x45;
ip->ip_tos = 0;
- ip->ip_len = htons(IP_HDR_SIZE + len);
- ip->ip_id = htons(NetIPID++);
+ ip->ip_len = htons(IP_HDR_SIZE);
+ ip->ip_id = htons(net_ip_id++);
ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */
ip->ip_ttl = 255;
- ip->ip_p = 17; /* UDP */
ip->ip_sum = 0;
/* already in network byte order */
- NetCopyIP((void *)&ip->ip_src, &NetOurIP);
- /* - "" - */
- NetCopyIP((void *)&ip->ip_dst, &dest);
+ net_copy_ip((void *)&ip->ip_src, &source);
+ /* already in network byte order */
+ net_copy_ip((void *)&ip->ip_dst, &dest);
+}
+
+void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport,
+ int len)
+{
+ struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
+
+ /*
+ * If the data is an odd number of bytes, zero the
+ * byte after the last byte so that the checksum
+ * will work.
+ */
+ if (len & 1)
+ pkt[IP_UDP_HDR_SIZE + len] = 0;
+
+ net_set_ip_header(pkt, dest, net_ip);
+ ip->ip_len = htons(IP_UDP_HDR_SIZE + len);
+ ip->ip_p = IPPROTO_UDP;
+ ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE);
+
ip->udp_src = htons(sport);
ip->udp_dst = htons(dport);
- ip->udp_len = htons(8 + len);
+ ip->udp_len = htons(UDP_HDR_SIZE + len);
ip->udp_xsum = 0;
- ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
}
void copy_filename(char *dst, const char *src, int size)
}
#endif
-void ip_to_string(IPaddr_t x, char *s)
+void ip_to_string(struct in_addr x, char *s)
{
- x = ntohl(x);
+ x.s_addr = ntohl(x.s_addr);
sprintf(s, "%d.%d.%d.%d",
- (int) ((x >> 24) & 0xff),
- (int) ((x >> 16) & 0xff),
- (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff)
+ (int) ((x.s_addr >> 24) & 0xff),
+ (int) ((x.s_addr >> 16) & 0xff),
+ (int) ((x.s_addr >> 8) & 0xff),
+ (int) ((x.s_addr >> 0) & 0xff)
);
}
-void VLAN_to_string(ushort x, char *s)
+void vlan_to_string(ushort x, char *s)
{
x = ntohs(x);
sprintf(s, "%d", x & VLAN_IDMASK);
}
-ushort string_to_VLAN(const char *s)
+ushort string_to_vlan(const char *s)
{
ushort id;
return htons(id);
}
-ushort getenv_VLAN(char *var)
+ushort getenv_vlan(char *var)
{
- return string_to_VLAN(getenv(var));
+ return string_to_vlan(getenv(var));
}