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net: cosmetic: bootp.* checkpatch compliance

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Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
master
Joe Hershberger 12 years ago
parent b28e28bbce
commit 3090b7e36c
2 changed files with 203 additions and 193 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 340
      net/bootp.c
  2. 56
      net/bootp.h

340
net/bootp.c
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@ -19,19 +19,19 @@
#endif
#include <linux/compiler.h>
#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
#define TIMEOUT 5000UL /* Milliseconds before trying BOOTP again */
#ifndef CONFIG_NET_RETRY_COUNT
# define TIMEOUT_COUNT 5 /* # of timeouts before giving up */
# 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 */
#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 */
#ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */
#define CONFIG_DHCP_MIN_EXT_LEN 64
#endif
@ -43,8 +43,8 @@ ulong seed1, seed2;
#if defined(CONFIG_CMD_DHCP)
dhcp_state_t dhcp_state = INIT;
unsigned long dhcp_leasetime = 0;
IPaddr_t NetDHCPServerIP = 0;
unsigned long dhcp_leasetime;
IPaddr_t NetDHCPServerIP;
static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
unsigned len);
@ -64,37 +64,29 @@ static char *dhcpmsg2str(int type)
}
}
#endif
#if defined(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 */
#endif
#endif
static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
{
Bootp_t *bp = (Bootp_t *) pkt;
struct Bootp_t *bp = (struct Bootp_t *) pkt;
int retval = 0;
if (dest != PORT_BOOTPC || src != PORT_BOOTPS)
retval = -1;
else if (len < sizeof (Bootp_t) - OPT_SIZE)
else if (len < sizeof(struct 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 ) {
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)
retval = -4;
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;
}
debug("Filtering pkt = %d\n", retval);
@ -104,7 +96,7 @@ static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
/*
* Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet
*/
static void BootpCopyNetParams(Bootp_t *bp)
static void BootpCopyNetParams(struct Bootp_t *bp)
{
__maybe_unused IPaddr_t tmp_ip;
@ -113,10 +105,10 @@ static void BootpCopyNetParams(Bootp_t *bp)
NetCopyIP(&tmp_ip, &bp->bp_siaddr);
if (tmp_ip != 0)
NetCopyIP(&NetServerIP, &bp->bp_siaddr);
memcpy (NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6);
memcpy(NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6);
#endif
if (strlen(bp->bp_file) > 0)
copy_filename (BootFile, bp->bp_file, sizeof(BootFile));
copy_filename(BootFile, bp->bp_file, sizeof(BootFile));
debug("Bootfile: %s\n", BootFile);
@ -124,97 +116,95 @@ static void BootpCopyNetParams(Bootp_t *bp)
* don't delete exising entry when BOOTP / DHCP reply does
* not contain a new value
*/
if (*BootFile) {
setenv ("bootfile", BootFile);
}
if (*BootFile)
setenv("bootfile", BootFile);
}
static int truncate_sz (const char *name, int maxlen, int curlen)
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);
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);
debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext,
*(ext + 1));
*(ext + 1));
NetBootFileSize = 0;
switch (*ext) {
/* Fixed length fields */
case 1: /* Subnet mask */
case 1: /* Subnet mask */
if (NetOurSubnetMask == 0)
NetCopyIP (&NetOurSubnetMask, (IPaddr_t *) (ext + 2));
NetCopyIP(&NetOurSubnetMask, (IPaddr_t *) (ext + 2));
break;
case 2: /* Time offset - Not yet supported */
case 2: /* Time offset - Not yet supported */
break;
/* Variable length fields */
case 3: /* Gateways list */
if (NetOurGatewayIP == 0) {
NetCopyIP (&NetOurGatewayIP, (IPaddr_t *) (ext + 2));
}
case 3: /* Gateways list */
if (NetOurGatewayIP == 0)
NetCopyIP(&NetOurGatewayIP, (IPaddr_t *) (ext + 2));
break;
case 4: /* Time server - Not yet supported */
case 4: /* Time server - Not yet supported */
break;
case 5: /* IEN-116 name server - Not yet supported */
case 5: /* IEN-116 name server - Not yet supported */
break;
case 6:
if (NetOurDNSIP == 0) {
NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2));
}
if (NetOurDNSIP == 0)
NetCopyIP(&NetOurDNSIP, (IPaddr_t *) (ext + 2));
#if defined(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 */
case 7: /* Log server - Not yet supported */
break;
case 8: /* Cookie/Quote server - Not yet supported */
case 8: /* Cookie/Quote server - Not yet supported */
break;
case 9: /* LPR server - Not yet supported */
case 9: /* LPR server - Not yet supported */
break;
case 10: /* Impress server - Not yet supported */
case 10: /* Impress server - Not yet supported */
break;
case 11: /* RPL server - Not yet supported */
case 11: /* RPL server - Not yet supported */
break;
case 12: /* Host name */
case 12: /* Host name */
if (NetOurHostName[0] == 0) {
size = truncate_sz ("Host Name", sizeof (NetOurHostName), size);
memcpy (&NetOurHostName, ext + 2, size);
size = truncate_sz("Host Name",
sizeof(NetOurHostName), size);
memcpy(&NetOurHostName, ext + 2, size);
NetOurHostName[size] = 0;
}
break;
case 13: /* Boot file size */
case 13: /* Boot file size */
if (size == 2)
NetBootFileSize = ntohs (*(ushort *) (ext + 2));
NetBootFileSize = ntohs(*(ushort *) (ext + 2));
else if (size == 4)
NetBootFileSize = ntohl (*(ulong *) (ext + 2));
NetBootFileSize = ntohl(*(ulong *) (ext + 2));
break;
case 14: /* Merit dump file - Not yet supported */
case 14: /* Merit dump file - Not yet supported */
break;
case 15: /* Domain name - Not yet supported */
case 15: /* Domain name - Not yet supported */
break;
case 16: /* Swap server - Not yet supported */
case 16: /* Swap server - Not yet supported */
break;
case 17: /* Root path */
case 17: /* Root path */
if (NetOurRootPath[0] == 0) {
size = truncate_sz ("Root Path", sizeof (NetOurRootPath), size);
memcpy (&NetOurRootPath, ext + 2, size);
size = truncate_sz("Root Path",
sizeof(NetOurRootPath), size);
memcpy(&NetOurRootPath, ext + 2, size);
NetOurRootPath[size] = 0;
}
break;
case 18: /* Extension path - Not yet supported */
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
@ -222,10 +212,11 @@ static void BootpVendorFieldProcess (u8 * ext)
*/
break;
/* IP host layer fields */
case 40: /* NIS Domain name */
case 40: /* NIS Domain name */
if (NetOurNISDomain[0] == 0) {
size = truncate_sz ("NIS Domain Name", sizeof (NetOurNISDomain), size);
memcpy (&NetOurNISDomain, ext + 2, size);
size = truncate_sz("NIS Domain Name",
sizeof(NetOurNISDomain), size);
memcpy(&NetOurNISDomain, ext + 2, size);
NetOurNISDomain[size] = 0;
}
break;
@ -235,7 +226,7 @@ static void BootpVendorFieldProcess (u8 * ext)
break;
#endif
/* Application layer fields */
case 43: /* Vendor specific info - Not yet supported */
case 43: /* Vendor specific info - Not yet supported */
/*
* Binary information to exchange specific
* product information.
@ -245,7 +236,7 @@ static void BootpVendorFieldProcess (u8 * ext)
}
}
static void BootpVendorProcess (u8 * ext, int size)
static void BootpVendorProcess(u8 *ext, int size)
{
u8 *end = ext + size;
@ -259,11 +250,11 @@ static void BootpVendorProcess (u8 * ext, int size)
ext += ext[1] + 2;
if (ext <= end)
BootpVendorFieldProcess (opt);
BootpVendorFieldProcess(opt);
}
}
debug("[BOOTP] Received fields: \n");
debug("[BOOTP] Received fields:\n");
if (NetOurSubnetMask)
debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask);
@ -298,27 +289,28 @@ static void
BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
unsigned len)
{
Bootp_t *bp;
struct Bootp_t *bp;
debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n",
src, dest, len, sizeof (Bootp_t));
src, dest, len, sizeof(struct Bootp_t));
bp = (Bootp_t *)pkt;
bp = (struct 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.
*/
#ifdef CONFIG_STATUS_LED
status_led_set (STATUS_LED_BOOT, STATUS_LED_OFF);
status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
#endif
BootpCopyNetParams(bp); /* Store net parameters from reply */
/* 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);
@ -337,11 +329,11 @@ static void
BootpTimeout(void)
{
if (BootpTry >= TIMEOUT_COUNT) {
puts ("\nRetry count exceeded; starting again\n");
NetStartAgain ();
puts("\nRetry count exceeded; starting again\n");
NetStartAgain();
} else {
NetSetTimeout (TIMEOUT, BootpTimeout);
BootpRequest ();
NetSetTimeout(TIMEOUT, BootpTimeout);
BootpRequest();
}
}
@ -349,7 +341,8 @@ BootpTimeout(void)
* 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;
@ -381,7 +374,7 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
*e++ = (576 - 312 + OPT_SIZE) & 0xff;
if (ServerID) {
int tmp = ntohl (ServerID);
int tmp = ntohl(ServerID);
*e++ = 54; /* ServerID */
*e++ = 4;
@ -392,7 +385,7 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
}
if (RequestedIP) {
int tmp = ntohl (RequestedIP);
int tmp = ntohl(RequestedIP);
*e++ = 50; /* Requested IP */
*e++ = 4;
@ -402,12 +395,13 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
*e++ = tmp & 0xff;
}
#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
if ((hostname = getenv ("hostname"))) {
int hostnamelen = strlen (hostname);
hostname = getenv("hostname");
if (hostname) {
int hostnamelen = strlen(hostname);
*e++ = 12; /* Hostname */
*e++ = hostnamelen;
memcpy (e, hostname, hostnamelen);
memcpy(e, hostname, hostnamelen);
e += hostnamelen;
}
#endif
@ -448,7 +442,8 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
#endif
#if defined(CONFIG_BOOTP_VENDOREX)
if ((x = dhcp_vendorex_prep (e)))
x = dhcp_vendorex_prep(e);
if (x)
return x - start;
#endif
@ -508,9 +503,9 @@ static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t R
#else
/*
* Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
* Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
*/
static int BootpExtended (u8 * e)
static int BootpExtended(u8 *e)
{
u8 *start = e;
@ -584,10 +579,10 @@ static int BootpExtended (u8 * e)
#endif
void
BootpRequest (void)
BootpRequest(void)
{
uchar *pkt, *iphdr;
Bootp_t *bp;
struct Bootp_t *bp;
int ext_len, pktlen, iplen;
bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start");
@ -600,22 +595,22 @@ BootpRequest (void)
int reg;
ulong tst1, tst2, sum, m_mask, m_value = 0;
if (BootpTry ==0) {
if (BootpTry == 0) {
/* get our mac */
eth_getenv_enetaddr("ethaddr", bi_enetaddr);
debug("BootpRequest => Our Mac: ");
for (reg=0; reg<6; reg++)
debug("%x%c", bi_enetaddr[reg], reg==5 ? '\n' : ':');
for (reg = 0; reg < 6; reg++)
debug("%x%c", bi_enetaddr[reg], reg == 5 ? '\n' : ':');
/* Mac-Manipulation 2 get seed1 */
tst1=0;
tst2=0;
for (reg=2; reg<6; reg++) {
tst1 = 0;
tst2 = 0;
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;
}
@ -623,8 +618,8 @@ BootpRequest (void)
seed1 = tst1^tst2;
/* Mirror seed1*/
m_mask=0x1;
for (reg=1;reg<=32;reg++) {
m_mask = 0x1;
for (reg = 1; reg <= 32; reg++) {
m_value |= (m_mask & seed1);
seed1 = seed1 >> 1;
m_value = m_value << 1;
@ -634,44 +629,45 @@ 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)
sum++;
seed2 = seed1;
seed1 = sum;
if (BootpTry<=2) { /* Start with max 1024 * 1ms */
if (BootpTry <= 2) { /* Start with max 1024 * 1ms */
sum = sum >> (22-BootpTry);
} else { /*After 3rd BOOTP request max 8192 * 1ms */
} else { /*After 3rd BOOTP request max 8192 * 1ms */
sum = sum >> 19;
}
}
printf ("Random delay: %ld ms...\n", sum);
for (reg=0; reg <sum; reg++) {
printf("Random delay: %ld ms...\n", sum);
for (reg = 0; reg < sum; reg++)
udelay(1000); /*Wait 1ms*/
}
#endif /* CONFIG_BOOTP_RANDOM_DELAY */
printf("BOOTP broadcast %d\n", ++BootpTry);
pkt = NetTxPacket;
memset ((void*)pkt, 0, PKTSIZE);
memset((void *)pkt, 0, PKTSIZE);
pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
/*
* Next line results in incorrect packet size being transmitted, resulting
* in errors in some DHCP servers, reporting missing bytes. Size must be
* set in packet header after extension length has been determined.
* Next line results in incorrect packet size being transmitted,
* resulting in errors in some DHCP servers, reporting missing bytes.
* Size must be 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)); */
/* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC,
sizeof (struct Bootp_t)); */
iphdr = pkt; /* We need this later for NetSetIP() */
pkt += IP_HDR_SIZE;
bp = (Bootp_t *)pkt;
bp = (struct Bootp_t *)pkt;
bp->bp_op = OP_BOOTREQUEST;
bp->bp_htype = HWT_ETHER;
bp->bp_hlen = HWL_ETHER;
@ -681,8 +677,8 @@ BootpRequest (void)
NetWriteIP(&bp->bp_yiaddr, 0);
NetWriteIP(&bp->bp_siaddr, 0);
NetWriteIP(&bp->bp_giaddr, 0);
memcpy (bp->bp_chaddr, NetOurEther, 6);
copy_filename (bp->bp_file, BootFile, sizeof(bp->bp_file));
memcpy(bp->bp_chaddr, NetOurEther, 6);
copy_filename(bp->bp_file, BootFile, sizeof(bp->bp_file));
/* Request additional information from the BOOTP/DHCP server */
#if defined(CONFIG_CMD_DHCP)
@ -707,7 +703,8 @@ BootpRequest (void)
* Calculate proper packet lengths taking into account the
* variable size of the options field
*/
pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len;
pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_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);
NetSetTimeout(SELECT_TIMEOUT, BootpTimeout);
@ -722,7 +719,7 @@ BootpRequest (void)
}
#if defined(CONFIG_CMD_DHCP)
static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
static void DhcpOptionsProcess(uchar *popt, struct Bootp_t *bp)
{
uchar *end = popt + BOOTP_HDR_SIZE;
int oplen, size;
@ -734,50 +731,51 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
oplen = *(popt + 1);
switch (*popt) {
case 1:
NetCopyIP (&NetOurSubnetMask, (popt + 2));
NetCopyIP(&NetOurSubnetMask, (popt + 2));
break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
case 2: /* Time offset */
to_ptr = &NetTimeOffset;
NetCopyLong ((ulong *)to_ptr, (ulong *)(popt + 2));
NetTimeOffset = ntohl (NetTimeOffset);
NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2));
NetTimeOffset = ntohl(NetTimeOffset);
break;
#endif
case 3:
NetCopyIP (&NetOurGatewayIP, (popt + 2));
NetCopyIP(&NetOurGatewayIP, (popt + 2));
break;
case 6:
NetCopyIP (&NetOurDNSIP, (popt + 2));
NetCopyIP(&NetOurDNSIP, (popt + 2));
#if defined(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);
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);
size = truncate_sz("Root Path",
sizeof(NetOurRootPath), oplen);
memcpy(&NetOurRootPath, popt + 2, size);
NetOurRootPath[size] = 0;
break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
case 42: /* NTP server IP */
NetCopyIP (&NetNtpServerIP, (popt + 2));
NetCopyIP(&NetNtpServerIP, (popt + 2));
break;
#endif
case 51:
NetCopyLong (&dhcp_leasetime, (ulong *) (popt + 2));
NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2));
break;
case 53: /* Ignore Message Type Option */
break;
case 54:
NetCopyIP (&NetDHCPServerIP, (popt + 2));
NetCopyIP(&NetDHCPServerIP, (popt + 2));
break;
case 58: /* Ignore Renewal Time Option */
break;
@ -792,7 +790,7 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
* pass the bootp packet pointer into here as the
* second arg
*/
size = truncate_sz ("Opt Boot File",
size = truncate_sz("Opt Boot File",
sizeof(bp->bp_file),
oplen);
if (bp->bp_file[0] == '\0' && size > 0) {
@ -813,10 +811,11 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
break;
default:
#if defined(CONFIG_BOOTP_VENDOREX)
if (dhcp_vendorex_proc (popt))
if (dhcp_vendorex_proc(popt))
break;
#endif
printf ("*** Unhandled DHCP Option in OFFER/ACK: %d\n", *popt);
printf("*** Unhandled DHCP Option in OFFER/ACK:"
" %d\n", *popt);
break;
}
popt += oplen + 2; /* Process next option */
@ -825,42 +824,42 @@ static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
static int DhcpMessageType(unsigned char *popt)
{
if (NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC))
if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC))
return -1;
popt += 4;
while ( *popt != 0xff ) {
if ( *popt == 53 ) /* DHCP Message Type */
while (*popt != 0xff) {
if (*popt == 53) /* DHCP Message Type */
return *(popt + 2);
popt += *(popt + 1) + 2; /* Scan through all options */
}
return -1;
}
static void DhcpSendRequestPkt(Bootp_t *bp_offer)
static void DhcpSendRequestPkt(struct Bootp_t *bp_offer)
{
uchar *pkt, *iphdr;
Bootp_t *bp;
struct Bootp_t *bp;
int pktlen, iplen, extlen;
IPaddr_t OfferedIP;
debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n");
pkt = NetTxPacket;
memset ((void*)pkt, 0, PKTSIZE);
memset((void *)pkt, 0, PKTSIZE);
pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
iphdr = pkt; /* We'll need this later to set proper pkt size */
iphdr = pkt; /* We'll need this later to set proper pkt size */
pkt += IP_HDR_SIZE;
bp = (Bootp_t *)pkt;
bp = (struct 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) / 1000);
/* Do not set the client IP, your IP, or server IP yet, since it hasn't been ACK'ed by
* the server yet */
/* Do not set the client IP, your IP, or server IP yet, since it
* hasn't been ACK'ed by the server yet */
/*
* RFC3046 requires Relay Agents to discard packets with
@ -868,7 +867,7 @@ static void DhcpSendRequestPkt(Bootp_t *bp_offer)
*/
NetWriteIP(&bp->bp_giaddr, 0);
memcpy (bp->bp_chaddr, NetOurEther, 6);
memcpy(bp->bp_chaddr, NetOurEther, 6);
/*
* ID is the id of the OFFER packet
@ -882,9 +881,11 @@ static void DhcpSendRequestPkt(Bootp_t *bp_offer)
/* Copy offered IP into the parameters request list */
NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr);
extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, NetDHCPServerIP, OfferedIP);
extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST,
NetDHCPServerIP, OfferedIP);
pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen;
pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE -
sizeof(bp->bp_vend) + extlen;
iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen;
NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen);
@ -902,36 +903,38 @@ static void
DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
unsigned len)
{
Bootp_t *bp = (Bootp_t *)pkt;
struct Bootp_t *bp = (struct Bootp_t *)pkt;
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;
debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n",
src, dest, len, dhcp_state);
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.
* 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.
*/
debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file);
#ifdef CONFIG_SYS_BOOTFILE_PREFIX
if (strncmp(bp->bp_file,
CONFIG_SYS_BOOTFILE_PREFIX,
strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0 ) {
strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) {
#endif /* CONFIG_SYS_BOOTFILE_PREFIX */
debug("TRANSITIONING TO REQUESTING STATE\n");
dhcp_state = REQUESTING;
if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
if (NetReadLong((ulong *)&bp->bp_vend[0]) ==
htonl(BOOTP_VENDOR_MAGIC))
DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
NetSetTimeout(TIMEOUT, BootpTimeout);
@ -945,14 +948,17 @@ DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
case REQUESTING:
debug("DHCP State: REQUESTING\n");
if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) {
if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) {
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;
printf ("DHCP client bound to address %pI4\n", &NetOurIP);
printf("DHCP client bound to address %pI4\n",
&NetOurIP);
bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP,
"bootp_stop");
"bootp_stop");
net_auto_load();
return;
@ -962,7 +968,7 @@ DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
/* DHCP client bound to address */
break;
default:
puts ("DHCP: INVALID STATE\n");
puts("DHCP: INVALID STATE\n");
break;
}

56
net/bootp.h
Unescape View File

@ -10,7 +10,7 @@
#define __BOOTP_H__
#ifndef __NET_H__
#include <net.h>
#include <net.h>
#endif /* __NET_H__ */
/**********************************************************************/
@ -19,35 +19,39 @@
* BOOTP header.
*/
#if defined(CONFIG_CMD_DHCP)
#define OPT_SIZE 312 /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
#define OPT_SIZE 312
#if defined(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 */
#endif
#else
#define OPT_SIZE 64
#endif
typedef struct
{
uchar bp_op; /* Operation */
struct Bootp_t {
uchar bp_op; /* Operation */
# define OP_BOOTREQUEST 1
# define OP_BOOTREPLY 2
uchar bp_htype; /* Hardware type */
uchar bp_htype; /* Hardware type */
# define HWT_ETHER 1
uchar bp_hlen; /* Hardware address length */
uchar bp_hlen; /* Hardware address length */
# define HWL_ETHER 6
uchar bp_hops; /* Hop count (gateway thing) */
ulong bp_id; /* Transaction ID */
ushort bp_secs; /* Seconds since boot */
ushort bp_spare1; /* Alignment */
IPaddr_t bp_ciaddr; /* Client IP address */
IPaddr_t bp_yiaddr; /* Your (client) IP address */
IPaddr_t bp_siaddr; /* Server IP address */
IPaddr_t bp_giaddr; /* Gateway IP address */
uchar bp_chaddr[16]; /* Client hardware address */
char bp_sname[64]; /* Server host name */
char bp_file[128]; /* Boot file name */
char bp_vend[OPT_SIZE]; /* Vendor information */
} Bootp_t;
#define BOOTP_HDR_SIZE sizeof (Bootp_t)
uchar bp_hops; /* Hop count (gateway thing) */
ulong bp_id; /* Transaction ID */
ushort bp_secs; /* Seconds since boot */
ushort bp_spare1; /* Alignment */
IPaddr_t bp_ciaddr; /* Client IP address */
IPaddr_t bp_yiaddr; /* Your (client) IP address */
IPaddr_t bp_siaddr; /* Server IP address */
IPaddr_t bp_giaddr; /* Gateway IP address */
uchar bp_chaddr[16]; /* Client hardware address */
char bp_sname[64]; /* Server host name */
char bp_file[128]; /* Boot file name */
char bp_vend[OPT_SIZE]; /* Vendor information */
};
#define BOOTP_HDR_SIZE sizeof(struct Bootp_t)
#define BOOTP_SIZE (ETHER_HDR_SIZE + IP_HDR_SIZE + BOOTP_HDR_SIZE)
/**********************************************************************/
@ -56,16 +60,16 @@ typedef struct
*/
/* bootp.c */
extern ulong BootpID; /* ID of cur BOOTP request */
extern char BootFile[128]; /* Boot file name */
extern ulong BootpID; /* ID of cur BOOTP request */
extern char BootFile[128]; /* Boot file name */
extern int BootpTry;
#ifdef CONFIG_BOOTP_RANDOM_DELAY
extern ulong seed1, seed2; /* seed for random BOOTP delay */
extern ulong seed1, seed2; /* seed for random BOOTP delay */
#endif
/* Send a BOOTP request */
extern void BootpRequest (void);
extern void BootpRequest(void);
/****************** DHCP Support *********************/
extern void DhcpRequest(void);

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