Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

net: cosmetic: bootp.* checkpatch compliance

Browse Source 
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
master
Joe Hershberger 13 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
Show Stats Download Patch File Download Diff File
  1. 340
      net/bootp.c
  2. 56
      net/bootp.h

340
net/bootp.c
Unescape View File

@ -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);

Write Preview
Loading…
Cancel
Save