diff options
Diffstat (limited to 'net/net.c')
| -rw-r--r-- | net/net.c | 49 |
1 files changed, 45 insertions, 4 deletions
@@ -92,6 +92,9 @@ #if defined(CONFIG_CDP_VERSION) #include <timestamp.h> #endif +#if defined(CONFIG_CMD_DNS) +#include "dns.h" +#endif #if defined(CONFIG_CMD_NET) @@ -139,8 +142,8 @@ uchar NetServerEther[6] = /* Boot server enet address */ { 0, 0, 0, 0, 0, 0 }; IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ -volatile uchar *NetRxPkt; /* Current receive packet */ -int NetRxPktLen; /* Current rx packet length */ +volatile uchar *NetRxPacket; /* Current receive packet */ +int NetRxPacketLen; /* Current rx packet length */ unsigned NetIPID; /* IP packet ID */ uchar NetBcastAddr[6] = /* Ethernet bcast address */ { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; @@ -291,6 +294,9 @@ NetInitLoop(proto_t protocol) NetServerIP = getenv_IPaddr ("serverip"); NetOurNativeVLAN = getenv_VLAN("nvlan"); NetOurVLAN = getenv_VLAN("vlan"); +#if defined(CONFIG_CMD_DNS) + NetOurDNSIP = getenv_IPaddr("dnsip"); +#endif env_changed_id = env_id; } @@ -388,17 +394,20 @@ restart: #if defined(CONFIG_CMD_DHCP) case DHCP: BootpTry = 0; + NetOurIP = 0; DhcpRequest(); /* Basically same as BOOTP */ break; #endif case BOOTP: BootpTry = 0; + NetOurIP = 0; BootpRequest (); break; case RARP: RarpTry = 0; + NetOurIP = 0; RarpRequest (); break; #if defined(CONFIG_CMD_PING) @@ -426,6 +435,11 @@ restart: SntpStart(); break; #endif +#if defined(CONFIG_CMD_DNS) + case DNS: + DnsStart(); + break; +#endif default: break; } @@ -1122,8 +1136,8 @@ NetReceive(volatile uchar * inpkt, int len) printf("packet received\n"); #endif - NetRxPkt = inpkt; - NetRxPktLen = len; + NetRxPacket = inpkt; + NetRxPacketLen = len; et = (Ethernet_t *)inpkt; /* too small packet? */ @@ -1273,6 +1287,15 @@ NetReceive(volatile uchar * inpkt, int len) /* 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 + #ifdef ET_DEBUG printf("Got ARP REPLY, set server/gtwy eth addr (%pM)\n", arp->ar_data); @@ -1518,6 +1541,14 @@ static int net_check_prereq (proto_t protocol) } goto common; #endif +#if defined(CONFIG_CMD_DNS) + case DNS: + if (NetOurDNSIP == 0) { + puts("*** ERROR: DNS server address not given\n"); + return 1; + } + goto common; +#endif #if defined(CONFIG_CMD_NFS) case NFS: #endif @@ -1681,6 +1712,16 @@ void copy_filename (char *dst, char *src, int size) #endif +#if defined(CONFIG_CMD_NFS) || defined(CONFIG_CMD_SNTP) || defined(CONFIG_CMD_DNS) +/* + * make port a little random, but use something trivial to compute + */ +unsigned int random_port(void) +{ + return 1024 + (get_timer(0) % 0x8000);; +} +#endif + void ip_to_string (IPaddr_t x, char *s) { x = ntohl (x); |