From: Piotr Dymacz Date: Thu, 1 Sep 2016 15:27:41 +0000 (+0200) Subject: Cleanups in net/bootp.c X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=2cc078756c0b4643e95db21eceed6a013f33cafa;p=oweals%2Fu-boot_mod.git Cleanups in net/bootp.c --- diff --git a/u-boot/include/configs/qca9k_common.h b/u-boot/include/configs/qca9k_common.h index 9fb2d32..1b929d1 100644 --- a/u-boot/include/configs/qca9k_common.h +++ b/u-boot/include/configs/qca9k_common.h @@ -85,6 +85,7 @@ /* Other environment variables */ #define CONFIG_BOOTFILE firmware.bin #define CONFIG_LOADADDR 0x80800000 +#define CONFIG_BOOTP_RANDOM_DELAY 1 /* This is needed for time calculation */ #define CFG_HZ (bd->bi_cfg_hz) diff --git a/u-boot/net/bootp.c b/u-boot/net/bootp.c index aec4dd1..2c1277d 100644 --- a/u-boot/net/bootp.c +++ b/u-boot/net/bootp.c @@ -8,8 +8,6 @@ * Copyright 2000-2004 Wolfgang Denk, wd@denx.de */ -//#define DEBUG 1 - #include #include #include @@ -17,369 +15,352 @@ #include "tftp.h" #include "nfs.h" -#define CONFIG_BOOTP_RANDOM_DELAY -#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ - #if defined(CONFIG_CMD_NET) DECLARE_GLOBAL_DATA_PTR; -#define TIMEOUT 5 /* Seconds before trying BOOTP again */ +#define PORT_BOOTPS 67 /* BOOTP server UDP port */ +#define PORT_BOOTPC 68 /* BOOTP client UDP port */ +#define TIMEOUT 5 /* Seconds before trying BOOTP again */ +#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ -#ifndef CONFIG_NET_RETRY_COUNT +#if !defined(CONFIG_NET_RETRY_COUNT) #define TIMEOUT_COUNT 5 /* # of timeouts before giving up */ #else #define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) #endif -#define PORT_BOOTPS 67 /* BOOTP server UDP port */ -#define PORT_BOOTPC 68 /* BOOTP client UDP port */ - -#ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ - #define CONFIG_DHCP_MIN_EXT_LEN 64 +#if !defined(CONFIG_DHCP_MIN_EXT_LEN) /* minimal length of extension list */ + #define CONFIG_DHCP_MIN_EXT_LEN 64 #endif ulong BootpID; int BootpTry; -#ifdef CONFIG_BOOTP_RANDOM_DELAY +#if defined(CONFIG_BOOTP_RANDOM_DELAY) ulong seed1, seed2; #endif #if defined(CONFIG_CMD_DHCP) + dhcp_state_t dhcp_state = INIT; unsigned long dhcp_leasetime = 0; IPaddr_t NetDHCPServerIP = 0; -static void DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len); -/* For Debug */ -#if 0 -static char *dhcpmsg2str(int type){ - switch(type){ - case 1: - return("DHCPDISCOVER"); - break; - case 2: - return("DHCPOFFER"); - break; - case 3: - return("DHCPREQUEST"); - break; - case 4: - return("DHCPDECLINE"); - break; - case 5: - return("DHCPACK"); - break; - case 6: - return("DHCPNACK"); - break; - case 7: - return("DHCPRELEASE"); - break; - default: - return("UNKNOWN/INVALID MSG TYPE"); - break; - } -} -#endif +static void DhcpHandler(uchar *pkt, unsigned dest, + unsigned src, unsigned len); #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX) -extern u8 *dhcp_vendorex_prep (u8 *e); /*rtn new e after add own opts. */ -extern u8 *dhcp_vendorex_proc (u8 *e); /*rtn next e if mine,else NULL */ +extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */ +extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */ #endif #endif /* CONFIG_CMD_DHCP */ -static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len){ +static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) +{ Bootp_t *bp = (Bootp_t *) pkt; int retval = 0; - if(dest != PORT_BOOTPC || src != PORT_BOOTPS){ + if (dest != PORT_BOOTPC || src != PORT_BOOTPS) { retval = -1; - } else if(len < sizeof (Bootp_t) - OPT_SIZE){ + } else if (len < sizeof (Bootp_t) - OPT_SIZE) { retval = -2; - } else if(bp->bp_op != OP_BOOTREQUEST && - bp->bp_op != OP_BOOTREPLY && - bp->bp_op != DHCP_OFFER && - bp->bp_op != DHCP_ACK && - bp->bp_op != DHCP_NAK){ + } else if (bp->bp_op != OP_BOOTREQUEST && + bp->bp_op != OP_BOOTREPLY && + bp->bp_op != DHCP_OFFER && + bp->bp_op != DHCP_ACK && + bp->bp_op != DHCP_NAK) { retval = -3; - } else if(bp->bp_htype != HWT_ETHER){ + } else if (bp->bp_htype != HWT_ETHER) { retval = -4; - } else if(bp->bp_hlen != HWL_ETHER){ + } else if (bp->bp_hlen != HWL_ETHER) { retval = -5; - } else if(NetReadLong((ulong*)&bp->bp_id) != BootpID){ + } else if (NetReadLong((ulong*)&bp->bp_id) != BootpID) { retval = -6; } -#ifdef DEBUG - printf("Filtering pkt = %d\n", retval); -#endif + debug("Filtering pkt = %d\n", retval); - return(retval); + return retval; } /* * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet */ -static void BootpCopyNetParams(Bootp_t *bp){ +static void BootpCopyNetParams(Bootp_t *bp) +{ IPaddr_t tmp_ip; NetCopyIP(&NetOurIP, &bp->bp_yiaddr); - NetCopyIP(&tmp_ip, &bp->bp_siaddr); + NetCopyIP(&tmp_ip, &bp->bp_siaddr); - if(tmp_ip != 0){ + if (tmp_ip != 0) NetCopyIP(&NetServerIP, &bp->bp_siaddr); - } memcpy(NetServerEther, ((Ethernet_t *)NetRxPkt)->et_src, 6); - if(strlen(bp->bp_file) > 0){ + if (strlen(bp->bp_file) > 0) copy_filename(BootFile, bp->bp_file, sizeof(BootFile)); - } -#ifdef DEBUG - printf("Bootfile: %s\n", BootFile); -#endif + debug("Bootfile: %s\n", BootFile); /* * Propagate to environment: * don't delete exising entry when BOOTP / DHCP reply does * not contain a new value */ - if(*BootFile){ + if (*BootFile) setenv("bootfile", BootFile); - } } -static int truncate_sz(const char *name, int maxlen, int curlen){ - if(curlen >= maxlen){ - printf("** Warning: %s is too long (%d - max: %d) - truncated\n", name, curlen, maxlen); +static int truncate_sz(const char *name, int maxlen, int curlen) +{ + if (curlen >= maxlen) { + printf("** Warning: '%s' is too long (%d - max: %d) - truncated\n", + name, curlen, maxlen); + curlen = maxlen - 1; } - return(curlen); + return curlen; } #if !defined(CONFIG_CMD_DHCP) - -static void BootpVendorFieldProcess(u8 * ext){ +static void BootpVendorFieldProcess(u8 *ext) +{ int size = *(ext + 1); NetBootFileSize = 0; - switch(*ext){ - /* Fixed length fields */ - case 1: /* Subnet mask */ - if (NetOurSubnetMask == 0){ - NetCopyIP(&NetOurSubnetMask, (IPaddr_t *)(ext + 2)); - } - break; - - case 2: /* Time offset - Not yet supported */ - break; + switch (*ext) { + /* + * Fixed length fields + */ - /* Variable length fields */ - case 3: /* Gateways list */ - if(NetOurGatewayIP == 0){ - NetCopyIP(&NetOurGatewayIP, (IPaddr_t *)(ext + 2)); - } - break; + /* Subnet mask */ + case 1: + if (NetOurSubnetMask == 0) + NetCopyIP(&NetOurSubnetMask, (IPaddr_t *)(ext + 2)); + break; + /* Time offset - Not yet supported */ + case 2: + break; - case 4: /* Time server - Not yet supported */ - break; + /* + * Variable length fields + */ - case 5: /* IEN-116 name server - Not yet supported */ - break; + /* Gateways list */ + case 3: + if (NetOurGatewayIP == 0) + NetCopyIP(&NetOurGatewayIP, (IPaddr_t *)(ext + 2)); + break; + /* Time server - Not yet supported */ + case 4: + break; + /* IEN-116 name server - Not yet supported */ + case 5: + break; + /* Domain name server */ + case 6: + if (NetOurDNSIP == 0) + NetCopyIP(&NetOurDNSIP, (IPaddr_t *)(ext + 2)); - case 6: - if(NetOurDNSIP == 0){ - NetCopyIP(&NetOurDNSIP, (IPaddr_t *)(ext + 2)); - } #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2) - if((NetOurDNS2IP == 0) && (size > 4)){ - NetCopyIP(&NetOurDNS2IP, (IPaddr_t *)(ext + 2 + 4)); - } + if ((NetOurDNS2IP == 0) && (size > 4)) + NetCopyIP(&NetOurDNS2IP, (IPaddr_t *)(ext + 2 + 4)); #endif - break; - - case 7: /* Log server - Not yet supported */ - break; - - case 8: /* Cookie/Quote server - Not yet supported */ - break; - - case 9: /* LPR server - Not yet supported */ - break; - - case 10: /* Impress server - Not yet supported */ - break; - - case 11: /* RPL server - Not yet supported */ - break; - - case 12: /* Host name */ - if(NetOurHostName[0] == 0){ - size = truncate_sz("Host Name", sizeof(NetOurHostName), size); - memcpy(&NetOurHostName, ext + 2, size); - NetOurHostName[size] = 0; - } - break; + break; + /* Log server - Not yet supported */ + case 7: + break; + /* Cookie/Quote server - Not yet supported */ + case 8: + break; + /* LPR server - Not yet supported */ + case 9: + break; + /* Impress server - Not yet supported */ + case 10: + break; + /* RPL server - Not yet supported */ + case 11: + break; + /* Host name */ + case 12: + if (NetOurHostName[0] == 0) { + size = truncate_sz("hostname", sizeof(NetOurHostName), size); + memcpy(&NetOurHostName, ext + 2, size); + NetOurHostName[size] = 0; + } - case 13: /* Boot file size */ - if(size == 2){ - NetBootFileSize = ntohs(*(ushort *)(ext + 2)); - } else if(size == 4){ - NetBootFileSize = ntohl(*(ulong *)(ext + 2)); - } - break; + break; + /* Boot file size */ + case 13: + if (size == 2) + NetBootFileSize = ntohs(*(ushort *)(ext + 2)); + else if (size == 4) + NetBootFileSize = ntohl(*(ulong *)(ext + 2)); + + break; + /* Merit dump file - Not yet supported */ + case 14: + break; + /* Domain name - Not yet supported */ + case 15: + break; + /* Swap server - Not yet supported */ + case 16: + break; + /* Root path */ + case 17: + if (NetOurRootPath[0] == 0) { + size = truncate_sz("root path", sizeof(NetOurRootPath), size); + memcpy(&NetOurRootPath, ext + 2, size); + NetOurRootPath[size] = 0; + } - case 14: /* Merit dump file - Not yet supported */ - break; + break; + /* Extension path - Not yet supported */ + case 18: + /* + * This can be used to send the information of the + * vendor area in another file that the client can + * access via TFTP. + */ + break; - case 15: /* Domain name - Not yet supported */ - break; + /* + * IP host layer fields + */ - case 16: /* Swap server - Not yet supported */ - break; + /* NIS Domain name */ + case 40: + if (NetOurNISDomain[0] == 0) { + size = truncate_sz("NIS domain name", sizeof(NetOurNISDomain), size); + memcpy(&NetOurNISDomain, ext + 2, size); + NetOurNISDomain[size] = 0; + } - case 17: /* Root path */ - if(NetOurRootPath[0] == 0){ - size = truncate_sz("Root Path", sizeof(NetOurRootPath), size); - memcpy(&NetOurRootPath, ext + 2, size); - NetOurRootPath[size] = 0; - } - break; + break; - case 18: /* Extension path - Not yet supported */ - /* - * This can be used to send the information of the - * vendor area in another file that the client can - * access via TFTP. - */ - break; + /* + * Application layer fields + */ - /* IP host layer fields */ - case 40: /* NIS Domain name */ - if(NetOurNISDomain[0] == 0){ - size = truncate_sz("NIS Domain Name", sizeof(NetOurNISDomain), size); - memcpy(&NetOurNISDomain, ext + 2, size); - NetOurNISDomain[size] = 0; - } - break; + /* Vendor specific info - Not yet supported */ + case 43: + /* + * Binary information to exchange specific + * product information. + */ + break; + /* NetBIOS over TCP/IP - Not yet supported */ + case 44: + case 45: + case 46: + case 47: + break; - /* Application layer fields */ - case 43: /* Vendor specific info - Not yet supported */ - /* - * Binary information to exchange specific - * product information. - */ - break; - /* Reserved (custom) fields (128..254) */ + /* + * Reserved (custom) fields (128..254) + */ } - } -static void BootpVendorProcess(u8 * ext, int size){ +static void BootpVendorProcess(u8 *ext, int size) +{ u8 *end = ext + size; - while((ext < end) && (*ext != 0xff)){ - if(*ext == 0){ + while ((ext < end) && (*ext != 0xff)) { + if (*ext == 0) { ext++; } else { u8 *opt = ext; ext += ext[1] + 2; - if(ext <= end){ + if (ext <= end) BootpVendorFieldProcess(opt); - } } } -#ifdef DEBUG +#if defined(DEBUG) puts("[BOOTP] Received fields: \n"); - if(NetOurSubnetMask){ - puts("NetOurSubnetMask : "); + if (NetOurSubnetMask) { + puts("NetOurSubnetMask: "); print_IPaddr(NetOurSubnetMask); putc('\n'); } - if(NetOurGatewayIP){ - puts("NetOurGatewayIP : "); + if (NetOurGatewayIP) { + puts("NetOurGatewayIP: "); print_IPaddr(NetOurGatewayIP); putc('\n'); } - if(NetBootFileSize){ - printf("NetBootFileSize : %d\n", NetBootFileSize); - } + if (NetBootFileSize) + printf("NetBootFileSize: %d\n", NetBootFileSize); - if(NetOurHostName[0]){ - printf("NetOurHostName : %s\n", NetOurHostName); - } + if (NetOurHostName[0]) + printf("NetOurHostName: %s\n", NetOurHostName); - if(NetOurRootPath[0]){ - printf("NetOurRootPath : %s\n", NetOurRootPath); - } + if (NetOurRootPath[0]) + printf("NetOurRootPath: %s\n", NetOurRootPath); - if(NetOurNISDomain[0]){ - printf("NetOurNISDomain : %s\n", NetOurNISDomain); - } + if (NetOurNISDomain[0]) + printf("NetOurNISDomain: %s\n", NetOurNISDomain); - if(NetBootFileSize){ + if (NetBootFileSize) printf("NetBootFileSize: %d\n", NetBootFileSize); - } -#endif /* DEBUG_BOOTP_EXT */ +#endif /* DEBUG */ } /* - * Handle a BOOTP received packet. + * Handle a BOOTP received packet */ -static void BootpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len){ +static void BootpHandler(uchar *pkt, unsigned dest, unsigned src, unsigned len) +{ Bootp_t *bp; char *s; -#ifdef DEBUG - printf("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%d)\n", src, dest, len, sizeof(Bootp_t)); -#endif + debug("Got BOOTP packet (src=%d, dst=%d, len=%d want_len=%d)\n", + src, dest, len, sizeof(Bootp_t)); bp = (Bootp_t *)pkt; - if(BootpCheckPkt(pkt, dest, src, len)){ /* Filter out pkts we don't want */ + /* Filter out pkts we don't want */ + if (BootpCheckPkt(pkt, dest, src, len)) return; - } /* - * Got a good BOOTP reply. Copy the data into our variables. + * Got a good BOOTP reply + * Copy the data into our variables */ - BootpCopyNetParams(bp); /* Store net parameters from reply */ + + /* Store net parameters from reply */ + BootpCopyNetParams(bp); /* Retrieve extended information (we must parse the vendor area) */ - if(NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)){ + if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) BootpVendorProcess((uchar *)&bp->bp_vend[4], len); - } NetSetTimeout(0, (thand_f *)0); -#ifdef DEBUG - printf("Got good BOOTP\n"); -#endif + debug("Got good BOOTP\n"); - if((s = getenv("autoload")) != NULL){ - if(*s == 'n'){ + if ((s = getenv("autoload")) != NULL) { + if (*s == 'n') { /* * Just use BOOTP to configure system; - * Do not use TFTP to load the bootfile. + * Do not use TFTP to load the bootfile */ NetState = NETLOOP_SUCCESS; return; #if defined(CONFIG_CMD_NFS) - } else if(strcmp(s, "NFS") == 0){ - /* - * Use NFS to load the bootfile. - */ + } else if (strcmp(s, "NFS") == 0) { + /* Use NFS to load the bootfile */ NfsStart(); return; #endif @@ -391,12 +372,13 @@ static void BootpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) #endif /* !CONFIG_CMD_DHCP */ /* - * Timeout on BOOTP/DHCP request. + * Timeout on BOOTP/DHCP request */ -static void BootpTimeout(void){ +static void BootpTimeout(void) +{ bd_t *bd = gd->bd; - if(BootpTry >= TIMEOUT_COUNT){ + if (BootpTry >= TIMEOUT_COUNT) { puts("\n## Error: retry count exceeded, starting again!\n\n"); NetStartAgain(); } else { @@ -406,10 +388,14 @@ static void BootpTimeout(void){ } /* - * Initialize BOOTP extension fields in the request. + * Initialize BOOTP extension fields in the request */ #if defined(CONFIG_CMD_DHCP) -static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP){ +static int DhcpExtended(u8 *e, + int message_type, + IPaddr_t ServerID, + IPaddr_t RequestedIP) +{ u8 *start = e; u8 *cnt; @@ -421,21 +407,21 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re char *hostname; #endif - *e++ = 99; /* RFC1048 Magic Cookie */ + *e++ = 99; /* RFC1048 Magic Cookie */ *e++ = 130; *e++ = 83; *e++ = 99; - *e++ = 53; /* DHCP Message Type */ + *e++ = 53; /* DHCP Message Type */ *e++ = 1; *e++ = message_type; - *e++ = 57; /* Maximum DHCP Message Size */ + *e++ = 57; /* Maximum DHCP Message Size */ *e++ = 2; *e++ = (576 - 312 + OPT_SIZE) >> 8; *e++ = (576 - 312 + OPT_SIZE) & 0xff; - if(ServerID){ + if (ServerID) { int tmp = ntohl(ServerID); *e++ = 54; /* ServerID */ @@ -446,7 +432,7 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re *e++ = tmp & 0xff; } - if(RequestedIP){ + if (RequestedIP) { int tmp = ntohl(RequestedIP); *e++ = 50; /* Requested IP */ @@ -458,8 +444,8 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re } #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SEND_HOSTNAME) - if((hostname = getenv("hostname"))){ - int hostnamelen = strlen (hostname); + if ((hostname = getenv("hostname"))) { + int hostnamelen = strlen(hostname); *e++ = 12; /* Hostname */ *e++ = hostnamelen; @@ -470,17 +456,16 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX) - if((x = dhcp_vendorex_prep (e))){ - return(x - start); - } + if (x = dhcp_vendorex_prep(e)) + return x - start; #endif - *e++ = 55; /* Parameter Request List */ - cnt = e++; /* Pointer to count of requested items */ + *e++ = 55; /* Parameter Request List */ + cnt = e++; /* Pointer to count of requested items */ *cnt = 0; #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK) - *e++ = 1; /* Subnet Mask */ + *e++ = 1; /* Subnet Mask */ *cnt += 1; #endif @@ -490,32 +475,32 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY) - *e++ = 3; /* Router Option */ + *e++ = 3; /* Router Option */ *cnt += 1; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS) - *e++ = 6; /* DNS Server(s) */ + *e++ = 6; /* DNS Server(s) */ *cnt += 1; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME) - *e++ = 12; /* Hostname */ + *e++ = 12; /* Hostname */ *cnt += 1; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE) - *e++ = 13; /* Boot File Size */ + *e++ = 13; /* Boot File Size */ *cnt += 1; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH) - *e++ = 17; /* Boot path */ + *e++ = 17; /* Boot path */ *cnt += 1; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN) - *e++ = 40; /* NIS Domain name request */ + *e++ = 40; /* NIS Domain name request */ *cnt += 1; #endif @@ -523,140 +508,142 @@ static int DhcpExtended(u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t Re *e++ = 42; *cnt += 1; #endif - *e++ = 255; /* End of the list */ + + *e++ = 255; /* End of the list */ /* Pad to minimal length */ -#ifdef CONFIG_DHCP_MIN_EXT_LEN - while((e - start) <= CONFIG_DHCP_MIN_EXT_LEN){ +#if defined(CONFIG_DHCP_MIN_EXT_LEN) + while ((e - start) <= CONFIG_DHCP_MIN_EXT_LEN) *e++ = 0; - } #endif - return(e - start); + return e - start; } #else /* CONFIG_CMD_DHCP */ /* - * Warning: no field size check - change CONFIG_BOOTP_MASK at your own risk! + * Warning: no field size check - change CONFIG_BOOTP_MASK at your own risk! */ -static int BootpExtended(u8 * e){ +static int BootpExtended(u8 *e) +{ u8 *start = e; - *e++ = 99; /* RFC1048 Magic Cookie */ + *e++ = 99; /* RFC1048 Magic Cookie */ *e++ = 130; *e++ = 83; *e++ = 99; #if defined(CONFIG_CMD_DHCP) - *e++ = 53; /* DHCP Message Type */ + *e++ = 53; /* DHCP Message Type */ *e++ = 1; *e++ = DHCP_DISCOVER; - *e++ = 57; /* Maximum DHCP Message Size */ + *e++ = 57; /* Maximum DHCP Message Size */ *e++ = 2; *e++ = (576 - 312 + OPT_SIZE) >> 16; *e++ = (576 - 312 + OPT_SIZE) & 0xff; #endif /* CONFIG_CMD_DHCP */ #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_SUBNETMASK) - *e++ = 1; /* Subnet mask request */ + *e++ = 1; /* Subnet mask request */ *e++ = 4; e += 4; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_GATEWAY) - *e++ = 3; /* Default gateway request */ + *e++ = 3; /* Default gateway request */ *e++ = 4; e += 4; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS) - *e++ = 6; /* Domain Name Server */ + *e++ = 6; /* Domain Name Server */ *e++ = 4; e += 4; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_HOSTNAME) - *e++ = 12; /* Host name request */ + *e++ = 12; /* Host name request */ *e++ = 32; e += 32; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTFILESIZE) - *e++ = 13; /* Boot file size */ + *e++ = 13; /* Boot file size */ *e++ = 2; e += 2; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_BOOTPATH) - *e++ = 17; /* Boot path */ + *e++ = 17; /* Boot path */ *e++ = 32; e += 32; #endif #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NISDOMAIN) - *e++ = 40; /* NIS Domain name request */ + *e++ = 40; /* NIS Domain name request */ *e++ = 32; e += 32; #endif - *e++ = 255; /* End of the list */ + *e++ = 255; /* End of the list */ - return(e - start); + return e - start; } #endif /* CONFIG_CMD_DHCP */ -void BootpRequest(void){ - bd_t *bd = gd->bd; +void BootpRequest(void) +{ volatile uchar *pkt, *iphdr; - Bootp_t *bp; int ext_len, pktlen, iplen; + bd_t *bd = gd->bd; + Bootp_t *bp; #if defined(CONFIG_CMD_DHCP) dhcp_state = INIT; #endif -#ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ +#if defined(CONFIG_BOOTP_RANDOM_DELAY) unsigned char bi_enetaddr[6]; int reg; ulong tst1, tst2, sum, m_mask, m_value = 0; - if(BootpTry == 0){ - /* get our mac */ + if (BootpTry == 0) { + /* Get our mac */ memcpy(bi_enetaddr, NetOurEther, 6); -#ifdef DEBUG +#if defined(DEBUG) puts("BootpRequest => Our Mac: "); - for(reg = 0; reg < 6; reg++){ - printf("%x%c", bi_enetaddr[reg], reg == 5 ? '\n' : ':'); - } -#endif /* DEBUG */ + for (reg = 0; reg < 6; reg++) + printf("%x%c", + bi_enetaddr[reg], reg == 5 ? '\n' : ':'); +#endif /* Mac-Manipulation 2 get seed1 */ tst1 = 0; tst2 = 0; - for(reg = 2; reg < 6; reg++){ + for (reg = 2; reg < 6; reg++) { tst1 = tst1 << 8; tst1 = tst1 | bi_enetaddr[reg]; } - for(reg = 0; reg < 2; reg++){ + for (reg = 0; reg < 2; reg++) { tst2 = tst2 | bi_enetaddr[reg]; tst2 = tst2 << 8; } seed1 = tst1^tst2; - /* Mirror seed1*/ + /* Mirror seed1 */ m_mask = 0x1; - for(reg = 1;reg <= 32; reg++){ + for (reg = 1;reg <= 32; reg++) { m_value |= (m_mask & seed1); - seed1 = seed1 >> 1; - m_value = m_value << 1; + seed1 = seed1 >> 1; + m_value = m_value << 1; } seed1 = m_value; @@ -664,28 +651,28 @@ void BootpRequest(void){ } /* Random Number Generator */ - for(reg = 0; reg <= 0; reg++){ + for (reg = 0; reg <= 0; reg++) { sum = seed1 + seed2; - if(sum < seed1 || sum < seed2){ + if (sum < seed1 || sum < seed2) sum++; - } seed2 = seed1; seed1 = sum; - if(BootpTry<=2){ /* Start with max 1024 * 1ms */ - sum = sum >> (22-BootpTry); - } else { /*After 3rd BOOTP request max 8192 * 1ms */ + /* Start with max 1024 * 1ms */ + if (BootpTry<=2) + sum = sum >> (22 - BootpTry); + /* After 3rd BOOTP request max 8192 * 1ms */ + else sum = sum >> 19; - } } printf("\nRandom delay: %ld ms...\n", sum); - for(reg = 0; reg < sum; reg++){ - udelay(1000); /* Wait 1ms */ - } + /* Wait 1ms */ + for (reg = 0; reg < sum; reg++) + udelay(1000); #endif /* CONFIG_BOOTP_RANDOM_DELAY */ printf("Sending DHCP discover... %d\n", ++BootpTry); @@ -701,17 +688,20 @@ void BootpRequest(void){ * set in packet header after extension length has been determined. * C. Hallinan, DS4.COM, Inc. */ + /* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, sizeof (Bootp_t)); */ - iphdr = pkt; /* We need this later for NetSetIP() */ - pkt += IP_HDR_SIZE; + + /* We need this later for NetSetIP() */ + iphdr = pkt; + pkt += IP_HDR_SIZE; bp = (Bootp_t *)pkt; - bp->bp_op = OP_BOOTREQUEST; - bp->bp_htype = HWT_ETHER; - bp->bp_hlen = HWL_ETHER; - bp->bp_hops = 0; - bp->bp_secs = htons(get_timer(0) / CFG_HZ); + bp->bp_op = OP_BOOTREQUEST; + bp->bp_htype = HWT_ETHER; + bp->bp_hlen = HWL_ETHER; + bp->bp_hops = 0; + bp->bp_secs = htons(get_timer(0) / CFG_HZ); NetWriteIP(&bp->bp_ciaddr, 0); NetWriteIP(&bp->bp_yiaddr, 0); @@ -730,8 +720,8 @@ void BootpRequest(void){ #endif /* CONFIG_CMD_DHCP */ /* - * Bootp ID is the lower 4 bytes of our ethernet address - * plus the current time in HZ. + * Bootp ID is the lower 4 bytes of our ethernet address + * plus the current time in HZ */ BootpID = ((ulong)NetOurEther[2] << 24) | ((ulong)NetOurEther[3] << 16) @@ -739,7 +729,7 @@ void BootpRequest(void){ | (ulong)NetOurEther[5]; BootpID += get_timer(0); - BootpID = htonl(BootpID); + BootpID = htonl(BootpID); NetCopyLong(&bp->bp_id, &BootpID); @@ -747,7 +737,7 @@ void BootpRequest(void){ * Calculate proper packet lengths taking into account the * variable size of the options field */ - pktlen = BOOTP_SIZE - sizeof(bp->bp_vend) + ext_len; + pktlen = BOOTP_SIZE - sizeof(bp->bp_vend) + ext_len; iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len; NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); @@ -764,165 +754,176 @@ void BootpRequest(void){ } #if defined(CONFIG_CMD_DHCP) -static void DhcpOptionsProcess(uchar * popt, Bootp_t *bp){ +static void DhcpOptionsProcess(uchar *popt, Bootp_t *bp) +{ uchar *end = popt + BOOTP_HDR_SIZE; int oplen, size; - while(popt < end && *popt != 0xff){ + while (popt < end && *popt != 0xff) { oplen = *(popt + 1); - switch(*popt){ - case 1: - NetCopyIP(&NetOurSubnetMask, (popt + 2)); - break; - -#if defined(CONFIG_CMD_SNTP) && (CONFIG_BOOTP_MASK & CONFIG_BOOTP_TIMEOFFSET) - case 2: /* Time offset */ - NetCopyLong(&NetTimeOffset, (ulong *)(popt + 2)); - NetTimeOffset = ntohl(NetTimeOffset); - break; + switch (*popt) { + case 1: + NetCopyIP(&NetOurSubnetMask, (popt + 2)); + break; +#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_TIMEOFFSET) &&\ + defined(CONFIG_CMD_SNTP) + /* Time offset */ + case 2: + NetCopyLong(&NetTimeOffset, (ulong *)(popt + 2)); + NetTimeOffset = ntohl(NetTimeOffset); + break; #endif + case 3: + NetCopyIP(&NetOurGatewayIP, (popt + 2)); + break; - case 3: - NetCopyIP(&NetOurGatewayIP, (popt + 2)); - break; - - case 6: - NetCopyIP(&NetOurDNSIP, (popt + 2)); + case 6: + NetCopyIP(&NetOurDNSIP, (popt + 2)); #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2) - if(*(popt + 1) > 4){ - NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); - } + if (*(popt + 1) > 4) + NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); #endif - break; - - case 12: - size = truncate_sz("Host Name", sizeof(NetOurHostName), oplen); - memcpy(&NetOurHostName, popt + 2, size); - NetOurHostName[size] = 0; - break; - - case 15: /* Ignore Domain Name Option */ - break; - - case 17: - size = truncate_sz("Root Path", sizeof(NetOurRootPath), oplen); - memcpy(&NetOurRootPath, popt + 2, size); - NetOurRootPath[size] = 0; - break; + break; + /* Log server - Not yet supported */ + case 7: + break; + case 12: + size = truncate_sz("hostname", + sizeof(NetOurHostName), oplen); - case 28: /* Ignore Broadcast Address Option */ - break; + memcpy(&NetOurHostName, popt + 2, size); + NetOurHostName[size] = 0; + break; + /* Ignore Domain Name Option */ + case 15: + break; + case 17: + size = truncate_sz("root path", + sizeof(NetOurRootPath), oplen); -#if defined(CONFIG_CMD_SNTP) && (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NTPSERVER) - case 42: /* NTP server IP */ - NetCopyIP(&NetNtpServerIP, (popt + 2)); - break; + memcpy(&NetOurRootPath, popt + 2, size); + NetOurRootPath[size] = 0; + break; + /* Ignore Broadcast Address Option */ + case 28: + break; +#if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_NTPSERVER) &&\ + defined(CONFIG_CMD_SNTP) + /* NTP server IP */ + case 42: + NetCopyIP(&NetNtpServerIP, (popt + 2)); + break; #endif + /* NetBIOS over TCP/IP - Not yet supported */ + case 44: + case 45: + case 46: + case 47: + break; + case 51: + NetCopyLong(&dhcp_leasetime, (ulong *)(popt + 2)); + break; + /* Ignore Message Type Option */ + case 53: + break; + case 54: + NetCopyIP(&NetDHCPServerIP, (popt + 2)); + break; + /* Ignore Renewal Time Option */ + case 58: + break; + /* Ignore Rebinding Time Option */ + case 59: + break; + /* Ignore TFTP server name */ + case 66: + break; + /* vendor opt bootfile */ + case 67: + /* + * I can't use dhcp_vendorex_proc here because I need + * to write into the bootp packet - even then I had to + * pass the bootp packet pointer into here as the + * second arg + */ + size = truncate_sz("Opt Boot File", + sizeof(bp->bp_file), oplen); - case 51: - NetCopyLong(&dhcp_leasetime, (ulong *)(popt + 2)); - break; - - case 53: /* Ignore Message Type Option */ - break; - - case 54: - NetCopyIP(&NetDHCPServerIP, (popt + 2)); - break; - - case 58: /* Ignore Renewal Time Option */ - break; - - case 59: /* Ignore Rebinding Time Option */ - break; - - case 66: /* Ignore TFTP server name */ - break; - - case 67: /* vendor opt bootfile */ + if (bp->bp_file[0] == '\0' && size > 0) { /* - * I can't use dhcp_vendorex_proc here because I need - * to write into the bootp packet - even then I had to - * pass the bootp packet pointer into here as the - * second arg + * only use vendor boot file if we didn't + * receive a boot file in the main non-vendor + * part of the packet - god only knows why + * some vendors chose not to use this perfectly + * good spot to store the boot file (join on + * Tru64 Unix) it seems mind bogglingly crazy + * to me */ - size = truncate_sz("Opt Boot File", sizeof(bp->bp_file), oplen); - - if(bp->bp_file[0] == '\0' && size > 0){ - /* - * only use vendor boot file if we didn't - * receive a boot file in the main non-vendor - * part of the packet - god only knows why - * some vendors chose not to use this perfectly - * good spot to store the boot file (join on - * Tru64 Unix) it seems mind bogglingly crazy - * to me - */ - printf("** Warning: using vendor optional boot file\n"); - memcpy(bp->bp_file, popt + 2, size); - bp->bp_file[size] = '\0'; - } - break; - - default: + printf("** Warning: using vendor optional boot file\n"); + memcpy(bp->bp_file, popt + 2, size); + bp->bp_file[size] = '\0'; + } + break; + default: #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_VENDOREX) - if(dhcp_vendorex_proc(popt)){ - break; - } -#endif - printf("** Warning: unhandled DHCP option in OFFER/ACK: %d\n", *popt); + if (dhcp_vendorex_proc(popt)) break; +#endif + printf("** Warning: unhandled DHCP option in OFFER/ACK: %d\n", *popt); + break; } - popt += oplen + 2; /* Process next option */ + /* Process next option */ + popt += oplen + 2; } } -static int DhcpMessageType(unsigned char *popt){ - if(NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC)){ - return(-1); - } +static int DhcpMessageType(unsigned char *popt) +{ + if (NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC)) + return -1; popt += 4; - while(*popt != 0xff){ - if(*popt == 53){ /* DHCP Message Type */ - return(*(popt + 2)); - } + while (*popt != 0xff) { + /* DHCP Message Type */ + if (*popt == 53) + return *(popt + 2); - popt += *(popt + 1) + 2; /* Scan through all options */ + /* Scan through all options */ + popt += *(popt + 1) + 2; } - return(-1); + return -1; } -static void DhcpSendRequestPkt(Bootp_t *bp_offer){ - bd_t *bd = gd->bd; +static void DhcpSendRequestPkt(Bootp_t *bp_offer) +{ volatile uchar *pkt, *iphdr; - Bootp_t *bp; int pktlen, iplen, extlen; IPaddr_t OfferedIP; + bd_t *bd = gd->bd; + Bootp_t *bp; -#ifdef DEBUG - puts("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); -#endif + debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); pkt = NetTxPacket; memset((void*)pkt, 0, PKTSIZE); pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP); - iphdr = pkt; /* We'll need this later to set proper pkt size */ - pkt += IP_HDR_SIZE; + /* We'll need this later to set proper pkt size */ + iphdr = pkt; + pkt += IP_HDR_SIZE; bp = (Bootp_t *)pkt; - bp->bp_op = OP_BOOTREQUEST; - bp->bp_htype = HWT_ETHER; - bp->bp_hlen = HWL_ETHER; - bp->bp_hops = 0; - bp->bp_secs = htons(get_timer(0) / CFG_HZ); + bp->bp_op = OP_BOOTREQUEST; + bp->bp_htype = HWT_ETHER; + bp->bp_hlen = HWL_ETHER; + bp->bp_hops = 0; + bp->bp_secs = htons(get_timer(0) / CFG_HZ); NetCopyIP(&bp->bp_ciaddr, &bp_offer->bp_ciaddr); /* both in network byte order */ NetCopyIP(&bp->bp_yiaddr, &bp_offer->bp_yiaddr); @@ -931,156 +932,144 @@ static void DhcpSendRequestPkt(Bootp_t *bp_offer){ memcpy(bp->bp_chaddr, NetOurEther, 6); - /* - * ID is the id of the OFFER packet - */ + /* ID is the id of the OFFER packet */ NetCopyLong(&bp->bp_id, &bp_offer->bp_id); - /* - * Copy options from OFFER packet if present - */ + /* Copy options from OFFER packet if present */ NetCopyIP(&OfferedIP, &bp->bp_yiaddr); - extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, NetDHCPServerIP, OfferedIP); + extlen = DhcpExtended((u8 *)bp->bp_vend, + DHCP_REQUEST, NetDHCPServerIP, OfferedIP); - pktlen = BOOTP_SIZE - sizeof(bp->bp_vend) + extlen; + pktlen = BOOTP_SIZE - sizeof(bp->bp_vend) + extlen; iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen; NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); -#ifdef DEBUG - printf("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); -#endif + debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); NetSendPacket(NetTxPacket, pktlen); } /* - * Handle DHCP received packets. + * Handle DHCP received packets. */ -static void DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len){ - bd_t *bd = gd->bd; +static void DhcpHandler(uchar *pkt, unsigned dest, unsigned src, unsigned len) +{ Bootp_t *bp = (Bootp_t *)pkt; + bd_t *bd = gd->bd; char tmp[22]; -#ifdef DEBUG - printf("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", src, dest, len, dhcp_state); -#endif + debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", + src, dest, len, dhcp_state); - if(BootpCheckPkt(pkt, dest, src, len)){ /* Filter out pkts we don't want */ + /* Filter out pkts we don't want */ + if (BootpCheckPkt(pkt, dest, src, len)) return; - } -#ifdef DEBUG - printf("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n", src, dest, len, dhcp_state); -#endif + debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n", + src, dest, len, dhcp_state); - switch(dhcp_state){ - case SELECTING: - /* - * Wait an appropriate time for any potential DHCPOFFER packets - * to arrive. Then select one, and generate DHCPREQUEST response. - * If filename is in format we recognize, assume it is a valid - * OFFER from a server we want. - */ -#ifdef DEBUG - printf("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); -#endif + switch (dhcp_state) { + /* + * Wait an appropriate time for any potential DHCPOFFER packets + * to arrive. Then select one, and generate DHCPREQUEST response. + * If filename is in format we recognize, assume it is a valid + * OFFER from a server we want. + */ + case SELECTING: + debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); -#ifdef CFG_BOOTFILE_PREFIX - if(strncmp(bp->bp_file, CFG_BOOTFILE_PREFIX, strlen(CFG_BOOTFILE_PREFIX)) == 0 ){ +#if defined(CFG_BOOTFILE_PREFIX) + if (strncmp(bp->bp_file, + CFG_BOOTFILE_PREFIX, + strlen(CFG_BOOTFILE_PREFIX)) == 0 ) { #endif /* CFG_BOOTFILE_PREFIX */ + if (NetReadLong((ulong*)&bp->bp_vend[0]) + == htonl(BOOTP_VENDOR_MAGIC)) + DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); -#ifdef DEBUG - puts("TRANSITIONING TO REQUESTING STATE\n"); -#endif - - dhcp_state = REQUESTING; + debug("TRANSITIONING TO REQUESTING STATE\n"); + dhcp_state = REQUESTING; - if(NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)){ - DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); - } + /* Store net params from reply */ + BootpCopyNetParams(bp); - BootpCopyNetParams(bp); /* Store net params from reply */ - - NetSetTimeout(TIMEOUT * CFG_HZ, BootpTimeout); - DhcpSendRequestPkt(bp); - -#ifdef CFG_BOOTFILE_PREFIX - } + NetSetTimeout(TIMEOUT * CFG_HZ, BootpTimeout); + DhcpSendRequestPkt(bp); +#if defined(CFG_BOOTFILE_PREFIX) + } #endif /* CFG_BOOTFILE_PREFIX */ + return; + break; - return; - break; - - case REQUESTING: -#ifdef DEBUG - puts("DHCP State: REQUESTING\n"); -#endif + case REQUESTING: + debug("DHCP State: REQUESTING\n"); - if(DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ){ - char *s; + if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { + char *s; - if(NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)){ - DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); - } + if (NetReadLong((ulong*)&bp->bp_vend[0]) + == htonl(BOOTP_VENDOR_MAGIC)) + DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); - BootpCopyNetParams(bp); /* Store net params from reply */ + /* Store net params from reply */ + BootpCopyNetParams(bp); - dhcp_state = BOUND; + debug("DHCP State: BOUND\n"); + dhcp_state = BOUND; - puts("\nReceived DHCP offer!\n New IP: "); - print_IPaddr(NetOurIP); - putc('\n'); + puts("\nReceived DHCP offer!\n"); + puts(" New IP: "); + print_IPaddr(NetOurIP); + putc('\n'); - // save our new IP to env - if(NetOurIP){ - ip_to_string(NetOurIP, tmp); - setenv("ipaddr", tmp); - } + /* Save our new IP to env */ + if (NetOurIP) { + ip_to_string(NetOurIP, tmp); + setenv("ipaddr", tmp); + } - puts(" Server IP: "); - print_IPaddr(NetServerIP); - putc('\n'); + puts(" Server IP: "); + print_IPaddr(NetServerIP); + putc('\n'); - // save new server IP to env - if(NetServerIP){ - ip_to_string(NetServerIP, tmp); - setenv("serverip", tmp); - } + /* Save new server IP to env */ + if (NetServerIP) { + ip_to_string(NetServerIP, tmp); + setenv("serverip", tmp); + } - /* Obey the 'autoload' setting */ - if((s = getenv("autoload")) != NULL){ - if(*s == 'n'){ - /* - * Just use BOOTP to configure system; - * Do not use TFTP to load the bootfile. - */ - NetState = NETLOOP_SUCCESS; - return; + /* Obey the 'autoload' setting */ + if ((s = getenv("autoload")) != NULL) { + if (*s == 'n') { + /* + * Just use BOOTP to configure system; + * Do not use TFTP to load the bootfile. + */ + NetState = NETLOOP_SUCCESS; + return; #if defined(CONFIG_CMD_NFS) - } else if(strcmp(s, "NFS") == 0){ - /* - * Use NFS to load the bootfile. - */ - NfsStart(); - return; + } else if(strcmp(s, "NFS") == 0){ + /* Use NFS to load the bootfile */ + NfsStart(); + return; #endif - } } - - TftpStart(); - return; } - break; - default: - puts("## Error: DHCP in INVALID STATE\n"); - break; - } + TftpStart(); + return; + } + break; + default: + puts("## Error: DHCP in INVALID STATE\n"); + break; + } } -void DhcpRequest(void){ +void DhcpRequest(void) +{ BootpRequest(); } #endif /* CONFIG_CMD_DHCP */