* Copyright 2000 Roland Borde
* Copyright 2000 Paolo Scaffardi
* Copyright 2000-2002 Wolfgang Denk, wd@denx.de
+ * SPDX-License-Identifier: GPL-2.0
*/
/*
#include <common.h>
#include <command.h>
#include <environment.h>
+#include <errno.h>
#include <net.h>
#if defined(CONFIG_STATUS_LED)
#include <miiphy.h>
/** 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,};
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];
/* Boot server enet address */
uchar NetServerEther[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 */
uchar *NetRxPacket;
/* Current rx packet length */
ushort NetOurNativeVLAN = 0xFFFF;
/* Boot File name */
-char BootFile[128];
+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;
#endif
static uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
-
+#ifdef CONFIG_DM_ETH
+/* Receive packets */
+uchar *net_rx_packets[PKTBUFSRX];
+#else
/* Receive packet */
uchar *NetRxPackets[PKTBUFSRX];
-
+#endif
/* Current UDP RX packet handler */
static rxhand_f *udp_packet_handler;
/* Current ARP RX packet handler */
switch (op) {
case env_op_create:
case env_op_overwrite:
- copy_filename(BootFile, value, sizeof(BootFile));
+ copy_filename(net_boot_file_name, value,
+ sizeof(net_boot_file_name));
break;
default:
break;
/* update only when the environment has changed */
if (env_changed_id != env_id) {
- NetOurIP = getenv_IPaddr("ipaddr");
- NetOurGatewayIP = getenv_IPaddr("gatewayip");
- NetOurSubnetMask = getenv_IPaddr("netmask");
- NetServerIP = getenv_IPaddr("serverip");
+ net_ip = getenv_ip("ipaddr");
+ net_gateway = getenv_ip("gatewayip");
+ net_netmask = getenv_ip("netmask");
+ net_server_ip = getenv_ip("serverip");
NetOurNativeVLAN = getenv_VLAN("nvlan");
NetOurVLAN = getenv_VLAN("vlan");
#if defined(CONFIG_CMD_DNS)
- NetOurDNSIP = getenv_IPaddr("dnsip");
+ net_dns_server = getenv_ip("dnsip");
#endif
env_changed_id = env_id;
}
if (eth_get_dev())
- memcpy(NetOurEther, eth_get_dev()->enetaddr, 6);
+ memcpy(NetOurEther, eth_get_ethaddr(), 6);
return;
}
NetTxPacket = &PktBuf[0] + (PKTALIGN - 1);
NetTxPacket -= (ulong)NetTxPacket % PKTALIGN;
+#ifdef CONFIG_DM_ETH
+ for (i = 0; i < PKTBUFSRX; i++) {
+ net_rx_packets[i] = NetTxPacket + (i + 1) *
+ PKTSIZE_ALIGN;
+ }
+#else
for (i = 0; i < PKTBUFSRX; i++)
NetRxPackets[i] = NetTxPacket + (i + 1) * PKTSIZE_ALIGN;
-
+#endif
ArpInit();
net_clear_handlers();
int NetLoop(enum proto_t protocol)
{
- bd_t *bd = gd->bd;
- int ret = -1;
+ int ret = -EINVAL;
NetRestarted = 0;
NetDevExists = 0;
if (eth_is_on_demand_init() || protocol != NETCONS) {
eth_halt();
eth_set_current();
- if (eth_init(bd) < 0) {
+ ret = eth_init();
+ if (ret < 0) {
eth_halt();
- return -1;
+ return ret;
}
} else
- eth_init_state_only(bd);
+ eth_init_state_only();
restart:
#ifdef CONFIG_USB_KEYBOARD
case 1:
/* network not configured */
eth_halt();
- return -1;
+ return -ENODEV;
case 2:
/* network device not configured */
case 0:
NetDevExists = 1;
- NetBootFileXferSize = 0;
+ net_boot_file_size = 0;
switch (protocol) {
case TFTPGET:
#ifdef CONFIG_CMD_TFTPPUT
#endif
#if defined(CONFIG_CMD_DHCP)
case DHCP:
- BootpTry = 0;
- NetOurIP = 0;
+ BootpReset();
+ net_ip.s_addr = 0;
DhcpRequest(); /* Basically same as BOOTP */
break;
#endif
case BOOTP:
- BootpTry = 0;
- NetOurIP = 0;
+ BootpReset();
+ net_ip.s_addr = 0;
BootpRequest();
break;
#if defined(CONFIG_CMD_RARP)
case RARP:
RarpTry = 0;
- NetOurIP = 0;
+ net_ip.s_addr = 0;
RarpRequest();
break;
#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();
*/
if (ctrlc()) {
/* cancel any ARP that may not have completed */
- NetArpWaitPacketIP = 0;
+ net_arp_wait_packet_ip.s_addr = 0;
net_cleanup_loop();
eth_halt();
(*x)();
}
+ if (net_state == NETLOOP_FAIL)
+ ret = NetStartAgain();
switch (net_state) {
case NETLOOP_SUCCESS:
net_cleanup_loop();
- if (NetBootFileXferSize > 0) {
- printf("Bytes transferred = %ld (%lx hex)\n",
- NetBootFileXferSize,
- NetBootFileXferSize);
- setenv_hex("filesize", NetBootFileXferSize);
+ 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);
}
if (protocol != NETCONS)
eth_set_last_protocol(protocol);
- ret = NetBootFileXferSize;
+ ret = net_boot_file_size;
debug_cond(DEBUG_INT_STATE, "--- NetLoop Success!\n");
goto done;
net_set_state(NETLOOP_RESTART);
}
-void NetStartAgain(void)
+int NetStartAgain(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)) {
eth_halt();
net_set_state(NETLOOP_FAIL);
- return;
+ /*
+ * We don't provide a way for the protocol to return an error,
+ * but this is almost always the reason.
+ */
+ return -ETIMEDOUT;
}
NetTryCount++;
#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER)
eth_try_another(!NetRestarted);
#endif
- eth_init(gd->bd);
+ ret = eth_init();
if (NetRestartWrap) {
NetRestartWrap = 0;
if (NetDevExists) {
} else {
net_set_state(NETLOOP_RESTART);
}
+ return ret;
}
/**********************************************************************/
*/
static void dummy_handler(uchar *pkt, unsigned dport,
- IPaddr_t sip, unsigned sport,
+ struct in_addr sip, unsigned sport,
unsigned len)
{
}
}
}
-int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport,
+int NetSendUDPPacket(uchar *ether, struct in_addr dest, int dport, int sport,
int payload_len)
{
uchar *pkt;
return -1;
/* convert to new style broadcast */
- if (dest == 0)
- dest = 0xFFFFFFFF;
+ if (dest.s_addr == 0)
+ dest.s_addr = 0xFFFFFFFF;
/* if broadcast, make the ether address a broadcast and don't do ARP */
- if (dest == 0xFFFFFFFF)
+ if (dest.s_addr == 0xFFFFFFFF)
ether = NetBcastAddr;
pkt = (uchar *)NetTxPacket;
debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest);
/* save the ip and eth addr for the packet to send after arp */
- NetArpWaitPacketIP = dest;
+ net_arp_wait_packet_ip = dest;
NetArpWaitPacketMAC = ether;
/* size of the waiting packet */
* @parma ip IP packet containing the ICMP
*/
static void receive_icmp(struct ip_udp_hdr *ip, int len,
- IPaddr_t src_ip, struct ethernet_hdr *et)
+ struct in_addr src_ip, struct ethernet_hdr *et)
{
struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src;
}
}
-void
-NetReceive(uchar *inpkt, int len)
+void net_process_received_packet(uchar *in_packet, int len)
{
struct ethernet_hdr *et;
struct ip_udp_hdr *ip;
- IPaddr_t dst_ip;
- IPaddr_t src_ip;
+ struct in_addr dst_ip;
+ struct in_addr src_ip;
int eth_proto;
#if defined(CONFIG_CMD_CDP)
int iscdp;
debug_cond(DEBUG_NET_PKT, "packet received\n");
- NetRxPacket = inpkt;
+ NetRxPacket = in_packet;
NetRxPacketLen = len;
- et = (struct ethernet_hdr *)inpkt;
+ 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
*/
eth_proto = ntohs(et802->et_prot);
- ip = (struct ip_udp_hdr *)(inpkt + E802_HDR_SIZE);
+ ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE);
len -= E802_HDR_SIZE;
} else if (eth_proto != PROT_VLAN) { /* normal packet */
- ip = (struct ip_udp_hdr *)(inpkt + ETHER_HDR_SIZE);
+ ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE);
len -= ETHER_HDR_SIZE;
} else { /* VLAN packet */
vlanid = cti & VLAN_IDMASK;
eth_proto = ntohs(vet->vet_type);
- ip = (struct ip_udp_hdr *)(inpkt + VLAN_ETHER_HDR_SIZE);
+ ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE);
len -= VLAN_ETHER_HDR_SIZE;
}
if ((ip->ip_hl_v & 0x0f) > 0x05)
return;
/* Check the Checksum of the header */
- if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE / 2)) {
+ if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) {
debug("checksum bad\n");
return;
}
/* If it is not for us, ignore it */
- dst_ip = NetReadIP(&ip->ip_dst);
- if (NetOurIP && dst_ip != NetOurIP && dst_ip != 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 != dst_ip)
+ 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
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);
/* 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;
}
#endif
case TFTPGET:
case TFTPPUT:
- if (NetServerIP == 0) {
+ if (net_server_ip.s_addr == 0) {
puts("*** ERROR: `serverip' not set\n");
return 1;
}
case NETCONS:
case TFTPSRV:
- if (NetOurIP == 0) {
+ if (net_ip.s_addr == 0) {
puts("*** ERROR: `ipaddr' not set\n");
return 1;
}
}
/**********************************************************************/
-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)
{
}
}
-void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source)
+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;
ip->ip_ttl = 255;
ip->ip_sum = 0;
/* already in network byte order */
- NetCopyIP((void *)&ip->ip_src, &source);
+ net_copy_ip((void *)&ip->ip_src, &source);
/* already in network byte order */
- NetCopyIP((void *)&ip->ip_dst, &dest);
+ net_copy_ip((void *)&ip->ip_dst, &dest);
}
-void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport, int sport,
+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 (len & 1)
pkt[IP_UDP_HDR_SIZE + len] = 0;
- net_set_ip_header(pkt, dest, NetOurIP);
+ 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 = ~NetCksum((uchar *)ip, IP_HDR_SIZE >> 1);
+ ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE);
ip->udp_src = htons(sport);
ip->udp_dst = htons(dport);
}
#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)
);
}