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xNBA/contrib/dhcpid/dhcpid.txt
Michael Brown 1097cf8685 Initial revision
2005-05-17 16:44:57 +00:00

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From daniel@insu.com Thu Apr 27 14:14:55 2000
Sender: root@iNsu.COM
Message-ID: <39075669.FAEB20F2@insu.com>
Date: Wed, 26 Apr 2000 16:49:45 -0400
From: Daniel Shane <daniel@insu.com>
X-Mailer: Mozilla 4.72 [en] (X11; U; Linux 2.2.14-5.0 i686)
X-Accept-Language: en
MIME-Version: 1.0
Subject: Re: New feature added to etherboot
References: <20000425170804.6677127D8A@Goffman.iNsu.COM>
Content-Type: multipart/mixed;
boundary="------------4734FDA0BF2F2FBDF8EB8DF6"
This is a multi-part message in MIME format.
--------------4734FDA0BF2F2FBDF8EB8DF6
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Ok, here is a diff for etherboot 4.6.0 that adds identifiers.
To test this you need to use a class in the dhcpd.conf file and
also send back a string in option 208.
These identifiers prevent a client from booting from other DHCP
servers when you have more than 1 in your network.
In will also prevent any client, except the valid ones, to use this
DHCP server.
Here is a subset of my dhcpd.conf :
option iNdiskless-state code 208 = text;
class "iNdiskless-boot" {
match if substring(option iNdiskless-state,0,4) = "BOOT";
}
class "iNdiskless-setup" {
match if substring(option iNdiskless-state,0,5) = "SETUP";
}
subnet 10.4.1.0 netmask 255.255.255.0 {
pool {
allow members of "iNdiskless-boot";
deny unknown clients;
range 10.4.1.2 10.4.1.200;
next-server 10.4.1.1;
# Identify ourselves to the etherboot/DHCP client
option iNdiskless-state "BOOT";
host labo01 {
hardware ethernet 00:80:c8:ec:04:1b;
}
host labo02 {
hardware ethernet 00:4f:4c:04:45:d6;
}
host labo03 {
hardware ethernet 00:50:ba:c8:db:d6;
}
}
pool {
allow members of "iNdiskless-setup";
range 10.4.1.201 10.4.1.254;
option iNdiskless-state "SETUP";
# send another kernel to setup the diskless workstation
}
}
Daniel Shane.
--------------4734FDA0BF2F2FBDF8EB8DF6
Content-Type: text/plain; charset=us-ascii;
name="main.c.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="main.c.diff"
--- etherboot-4.6.0/src/main.c Tue Apr 25 08:30:01 2000
+++ etherboot-4.5.6-new/src/main.c Wed Apr 26 16:17:09 2000
@@ -42,6 +42,23 @@ char *motd[RFC1533_VENDOR_NUMOFMOTD];
#ifdef IMAGE_FREEBSD
int freebsd_howto = 0;
#endif
+
+#ifdef SERVER_IDENT
+#ifdef DEFAULT_SERVER_IDENT
+char server_ident[9] = DEFAULT_SERVER_IDENT;
+#else
+char server_ident[9] = {};
+#endif
+#endif
+
+#ifdef CLIENT_IDENT
+#ifdef DEFAULT_CLIENT_IDENT
+char client_ident[9] = DEFAULT_CLIENT_IDENT;
+#else
+char client_ident[9] = {};
+#endif
+#endif
+
int vendorext_isvalid;
char config_buffer[TFTP_MAX_PACKET+1]; /* +1 for null byte */
unsigned long netmask;
@@ -63,61 +80,85 @@ char rfc1533_cookie[5] = { RFC1533_CO
char rfc1533_cookie[] = { RFC1533_COOKIE};
char rfc1533_end[]={RFC1533_END };
static const char dhcpdiscover[]={
- RFC2132_MSG_TYPE,1,DHCPDISCOVER,
- RFC2132_MAX_SIZE,2,2,64,
- RFC2132_PARAM_LIST,4,RFC1533_NETMASK,RFC1533_GATEWAY,
- RFC1533_HOSTNAME,RFC1533_EXTENSIONPATH
- };
-static const char dhcprequest []={
- RFC2132_MSG_TYPE,1,DHCPREQUEST,
- RFC2132_SRV_ID,4,0,0,0,0,
- RFC2132_REQ_ADDR,4,0,0,0,0,
- RFC2132_MAX_SIZE,2,2,64,
- /* request parameters */
- RFC2132_PARAM_LIST,
-#ifdef IMAGE_FREEBSD
- /* 4 standard + 4 vendortags + 8 motd + 16 menu items */
- 4 + 4 + 8 + 16,
+ RFC2132_MSG_TYPE,1,DHCPDISCOVER,
+ RFC2132_MAX_SIZE,2,2,64,
+#ifdef CLIENT_IDENT
+ RFC1533_VENDOR_CLIENT_IDENT,8,0,0,0,0,0,0,0,0,
+#endif
+ RFC2132_PARAM_LIST,
+#ifdef SERVER_IDENT
+ 5,
#else
- /* 4 standard + 3 vendortags + 8 motd + 16 menu items */
- 4 + 3 + 8 + 16,
+ 4,
#endif
- /* Standard parameters */
- RFC1533_NETMASK, RFC1533_GATEWAY,
- RFC1533_HOSTNAME, RFC1533_EXTENSIONPATH,
- /* Etherboot vendortags */
- RFC1533_VENDOR_MAGIC,
+#ifdef SERVER_IDENT
+ RFC1533_VENDOR_SERVER_IDENT,
+#endif
+ RFC1533_NETMASK,
+ RFC1533_GATEWAY,
+ RFC1533_HOSTNAME,
+ RFC1533_EXTENSIONPATH
+};
+static const char dhcprequest []={
+ RFC2132_MSG_TYPE,1,DHCPREQUEST,
+ RFC2132_SRV_ID,4,0,0,0,0,
+ RFC2132_REQ_ADDR,4,0,0,0,0,
+#ifdef CLIENT_IDENT
+ RFC1533_VENDOR_CLIENT_IDENT,8,0,0,0,0,0,0,0,0,
+#endif
+ RFC2132_MAX_SIZE,2,2,64,
+ /* request parameters */
+ RFC2132_PARAM_LIST,
+ /* 4 standard + 3 vendortags + 8 motd + 16 menu items */
+ 4 +
+ 3 +
+#ifdef IMAGE_FREEBSD
+ 1 + /* One more vendortags for VENDOR_HOWTO */
+#endif
+#ifdef SERVER_IDENT
+ 1 + /* One more vendortags for VENDOR_SERVER_IDENT */
+#endif
+ 8 +
+ 16,
+ /* Standard parameters */
+ RFC1533_NETMASK, RFC1533_GATEWAY,
+ RFC1533_HOSTNAME, RFC1533_EXTENSIONPATH,
+ /* Etherboot vendortags */
+ RFC1533_VENDOR_MAGIC,
#ifdef IMAGE_FREEBSD
- RFC1533_VENDOR_HOWTO,
+ RFC1533_VENDOR_HOWTO,
#endif
- RFC1533_VENDOR_MNUOPTS, RFC1533_VENDOR_SELECTION,
- /* 8 MOTD entries */
- RFC1533_VENDOR_MOTD,
- RFC1533_VENDOR_MOTD+1,
- RFC1533_VENDOR_MOTD+2,
- RFC1533_VENDOR_MOTD+3,
- RFC1533_VENDOR_MOTD+4,
- RFC1533_VENDOR_MOTD+5,
- RFC1533_VENDOR_MOTD+6,
- RFC1533_VENDOR_MOTD+7,
- /* 16 image entries */
- RFC1533_VENDOR_IMG,
- RFC1533_VENDOR_IMG+1,
- RFC1533_VENDOR_IMG+2,
- RFC1533_VENDOR_IMG+3,
- RFC1533_VENDOR_IMG+4,
- RFC1533_VENDOR_IMG+5,
- RFC1533_VENDOR_IMG+6,
- RFC1533_VENDOR_IMG+7,
- RFC1533_VENDOR_IMG+8,
- RFC1533_VENDOR_IMG+9,
- RFC1533_VENDOR_IMG+10,
- RFC1533_VENDOR_IMG+11,
- RFC1533_VENDOR_IMG+12,
- RFC1533_VENDOR_IMG+13,
- RFC1533_VENDOR_IMG+14,
- RFC1533_VENDOR_IMG+15,
- };
+#ifdef SERVER_IDENT
+ RFC1533_VENDOR_SERVER_IDENT,
+#endif
+ RFC1533_VENDOR_MNUOPTS, RFC1533_VENDOR_SELECTION,
+ /* 8 MOTD entries */
+ RFC1533_VENDOR_MOTD,
+ RFC1533_VENDOR_MOTD+1,
+ RFC1533_VENDOR_MOTD+2,
+ RFC1533_VENDOR_MOTD+3,
+ RFC1533_VENDOR_MOTD+4,
+ RFC1533_VENDOR_MOTD+5,
+ RFC1533_VENDOR_MOTD+6,
+ RFC1533_VENDOR_MOTD+7,
+ /* 16 image entries */
+ RFC1533_VENDOR_IMG,
+ RFC1533_VENDOR_IMG+1,
+ RFC1533_VENDOR_IMG+2,
+ RFC1533_VENDOR_IMG+3,
+ RFC1533_VENDOR_IMG+4,
+ RFC1533_VENDOR_IMG+5,
+ RFC1533_VENDOR_IMG+6,
+ RFC1533_VENDOR_IMG+7,
+ RFC1533_VENDOR_IMG+8,
+ RFC1533_VENDOR_IMG+9,
+ RFC1533_VENDOR_IMG+10,
+ RFC1533_VENDOR_IMG+11,
+ RFC1533_VENDOR_IMG+12,
+ RFC1533_VENDOR_IMG+13,
+ RFC1533_VENDOR_IMG+14,
+ RFC1533_VENDOR_IMG+15,
+};
#endif /* NO_DHCP_SUPPORT */
static const char broadcast[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
@@ -176,6 +217,55 @@ done:
break;
}
#endif
+
+#ifdef SHIFTED_IDENT_INPUT
+ if (getshift() & 3)
+ {
+#endif
+
+#ifdef CLIENT_IDENT
+# ifdef ASK_CLIENT_IDENT
+ {
+ char tmp_ident[9] = {};
+# ifdef DEFAULT_CLIENT_IDENT
+ printf("Enter the client identifier (8 char max.) default [%s] : ",client_ident);
+# else
+ printf("Enter the client identifier (8 char max.) : ");
+# endif
+ getstr(tmp_ident,8);
+ if (strlen(tmp_ident) != 0)
+ memcpy(client_ident,tmp_ident,8);
+ else
+ printf("%s",client_ident);
+ putchar('\n');
+ }
+# endif
+#endif
+
+#ifdef SERVER_IDENT
+# ifdef ASK_SERVER_IDENT
+ {
+ char tmp_ident[9] = {};
+# ifdef DEFAULT_SERVER_IDENT
+ printf("Enter the server identifier (8 char max.) default [%s] : ",server_ident);
+# else
+ printf("Enter the server identifier (8 char max.) : ");
+# endif
+ getstr(tmp_ident,8);
+ if (strlen(tmp_ident) != 0)
+ memcpy(server_ident,tmp_ident,8);
+ else
+ printf("%s",server_ident);
+ putchar('\n');
+ }
+# endif
+#endif
+
+#ifdef SHIFTED_IDENT_INPUT
+ }
+#endif
+
+ print_config();
#if (TRY_FLOPPY_FIRST > 0) && defined(FLOPPY)
disk_init();
printf("Trying floppy");
@@ -188,7 +278,7 @@ done:
}
printf("no floppy\n");
#endif /* TRY_FLOPPY_FIRST && FLOPPY */
- print_config();
+ print_config();
gateA20_set();
#ifdef EMERGENCYDISKBOOT
if (!eth_probe()) {
@@ -663,6 +753,8 @@ BOOTP - Get my IP address and load infor
int bootp()
{
int retry;
+ int offset = 0;
+
#ifndef NO_DHCP_SUPPORT
int retry1;
#endif /* NO_DHCP_SUPPORT */
@@ -680,11 +772,18 @@ int bootp()
bp.bp_xid = xid = starttime = currticks();
memcpy(bp.bp_hwaddr, arptable[ARP_CLIENT].node, ETHER_ADDR_SIZE);
#ifdef NO_DHCP_SUPPORT
- memcpy(bp.bp_vend, rfc1533_cookie, 5); /* request RFC-style options */
+ memcpy(bp.bp_vend+offset, rfc1533_cookie, 5); /* request RFC-style options */
+ offset += sizeof rfc1533_cookie;
#else
- memcpy(bp.bp_vend, rfc1533_cookie, sizeof rfc1533_cookie); /* request RFC-style options */
- memcpy(bp.bp_vend+sizeof rfc1533_cookie, dhcpdiscover, sizeof dhcpdiscover);
- memcpy(bp.bp_vend+sizeof rfc1533_cookie +sizeof dhcpdiscover, rfc1533_end, sizeof rfc1533_end);
+ memcpy(bp.bp_vend+offset, rfc1533_cookie, sizeof rfc1533_cookie); /* request RFC-style options */
+ offset += sizeof rfc1533_cookie;
+ memcpy(bp.bp_vend+offset, dhcpdiscover, sizeof dhcpdiscover);
+ offset += sizeof dhcpdiscover;
+#ifdef CLIENT_IDENT
+ memcpy(bp.bp_vend+13, client_ident, strlen(client_ident));
+#endif
+ memcpy(bp.bp_vend+offset, rfc1533_end, sizeof rfc1533_end);
+ offset += sizeof rfc1533_end;
#endif /* NO_DHCP_SUPPORT */
for (retry = 0; retry < MAX_BOOTP_RETRIES; ) {
@@ -715,19 +814,22 @@ int bootp()
#else
if (await_reply(AWAIT_BOOTP, 0, NULL, TIMEOUT)){
if (dhcp_reply==DHCPOFFER){
- dhcp_reply=0;
- memcpy(bp.bp_vend, rfc1533_cookie, sizeof rfc1533_cookie);
- memcpy(bp.bp_vend+sizeof rfc1533_cookie, dhcprequest, sizeof dhcprequest);
- memcpy(bp.bp_vend+sizeof rfc1533_cookie +sizeof dhcprequest, rfc1533_end, sizeof rfc1533_end);
- memcpy(bp.bp_vend+9, &dhcp_server, sizeof(in_addr));
- memcpy(bp.bp_vend+15, &dhcp_addr, sizeof(in_addr));
- for (retry1 = 0; retry1 < MAX_BOOTP_RETRIES;) {
- udp_transmit(IP_BROADCAST, 0, BOOTP_SERVER,
- sizeof(struct bootp_t), &bp);
dhcp_reply=0;
- if (await_reply(AWAIT_BOOTP, 0, NULL, TIMEOUT))
- if (dhcp_reply==DHCPACK)
- return(1);
+ memcpy(bp.bp_vend, rfc1533_cookie, sizeof rfc1533_cookie);
+ memcpy(bp.bp_vend+sizeof rfc1533_cookie, dhcprequest, sizeof dhcprequest);
+ memcpy(bp.bp_vend+sizeof rfc1533_cookie +sizeof dhcprequest, rfc1533_end, sizeof rfc1533_end);
+ memcpy(bp.bp_vend+9, &dhcp_server, sizeof(in_addr));
+ memcpy(bp.bp_vend+15, &dhcp_addr, sizeof(in_addr));
+#ifdef CLIENT_IDENT
+ memcpy(bp.bp_vend+21, client_ident, strlen(client_ident));
+#endif
+ for (retry1 = 0; retry1 < MAX_BOOTP_RETRIES;) {
+ udp_transmit(IP_BROADCAST, 0, BOOTP_SERVER,
+ sizeof(struct bootp_t), &bp);
+ dhcp_reply=0;
+ if (await_reply(AWAIT_BOOTP, 0, NULL, TIMEOUT))
+ if (dhcp_reply==DHCPACK)
+ return(1);
rfc951_sleep(++retry1);
}
} else
@@ -750,6 +852,7 @@ AWAIT_REPLY - Wait until we get a respon
**************************************************************************/
int await_reply(int type, int ival, void *ptr, int timeout)
{
+ int result;
unsigned long time;
struct iphdr *ip;
struct udphdr *udp;
@@ -757,6 +860,7 @@ int await_reply(int type, int ival, void
struct bootp_t *bootpreply;
struct rpc_t *rpc;
unsigned short ptype;
+ unsigned int min_packetlen;
unsigned int protohdrlen = ETHER_HDR_SIZE + sizeof(struct iphdr) +
sizeof(struct udphdr);
@@ -766,35 +870,35 @@ int await_reply(int type, int ival, void
* needs a negligible amount of time. */
for (;;) {
if (eth_poll()) { /* We have something! */
- /* Check for ARP - No IP hdr */
+ /* Check for ARP - No IP hdr */
if (nic.packetlen >= ETHER_HDR_SIZE) {
ptype = ((unsigned short) nic.packet[12]) << 8
| ((unsigned short) nic.packet[13]);
} else continue; /* what else could we do with it? */
if ((nic.packetlen >= ETHER_HDR_SIZE +
- sizeof(struct arprequest)) &&
- (ptype == ARP) ) {
+ sizeof(struct arprequest)) &&
+ (ptype == ARP) ) {
unsigned long tmp;
-
+
arpreply = (struct arprequest *)
&nic.packet[ETHER_HDR_SIZE];
if ((arpreply->opcode == ntohs(ARP_REPLY)) &&
- !memcmp(arpreply->sipaddr, ptr, sizeof(in_addr)) &&
- (type == AWAIT_ARP)) {
+ !memcmp(arpreply->sipaddr, ptr, sizeof(in_addr)) &&
+ (type == AWAIT_ARP)) {
memcpy(arptable[ival].node, arpreply->shwaddr, ETHER_ADDR_SIZE);
return(1);
}
memcpy(&tmp, arpreply->tipaddr, sizeof(in_addr));
if ((arpreply->opcode == ntohs(ARP_REQUEST)) &&
- (tmp == arptable[ARP_CLIENT].ipaddr.s_addr)) {
+ (tmp == arptable[ARP_CLIENT].ipaddr.s_addr)) {
arpreply->opcode = htons(ARP_REPLY);
memcpy(arpreply->tipaddr, arpreply->sipaddr, sizeof(in_addr));
memcpy(arpreply->thwaddr, arpreply->shwaddr, ETHER_ADDR_SIZE);
memcpy(arpreply->sipaddr, &arptable[ARP_CLIENT].ipaddr, sizeof(in_addr));
memcpy(arpreply->shwaddr, arptable[ARP_CLIENT].node, ETHER_ADDR_SIZE);
eth_transmit(arpreply->thwaddr, ARP,
- sizeof(struct arprequest),
- arpreply);
+ sizeof(struct arprequest),
+ arpreply);
#ifdef MDEBUG
memcpy(&tmp, arpreply->tipaddr, sizeof(in_addr));
printf("Sent ARP reply to: %I\n",tmp);
@@ -802,20 +906,20 @@ int await_reply(int type, int ival, void
}
continue;
}
-
+
if (type == AWAIT_QDRAIN) {
continue;
}
-
- /* Check for RARP - No IP hdr */
+
+ /* Check for RARP - No IP hdr */
if ((type == AWAIT_RARP) &&
- (nic.packetlen >= ETHER_HDR_SIZE +
- sizeof(struct arprequest)) &&
- (ptype == RARP)) {
+ (nic.packetlen >= ETHER_HDR_SIZE +
+ sizeof(struct arprequest)) &&
+ (ptype == RARP)) {
arpreply = (struct arprequest *)
&nic.packet[ETHER_HDR_SIZE];
if ((arpreply->opcode == ntohs(RARP_REPLY)) &&
- !memcmp(arpreply->thwaddr, ptr, ETHER_ADDR_SIZE)) {
+ !memcmp(arpreply->thwaddr, ptr, ETHER_ADDR_SIZE)) {
memcpy(arptable[ARP_SERVER].node, arpreply->shwaddr, ETHER_ADDR_SIZE);
memcpy(& arptable[ARP_SERVER].ipaddr, arpreply->sipaddr, sizeof(in_addr));
memcpy(& arptable[ARP_CLIENT].ipaddr, arpreply->tipaddr, sizeof(in_addr));
@@ -823,64 +927,72 @@ int await_reply(int type, int ival, void
}
continue;
}
-
- /* Anything else has IP header */
+
+ /* Anything else has IP header */
if ((nic.packetlen < protohdrlen) ||
- (ptype != IP) ) continue;
+ (ptype != IP) ) continue;
ip = (struct iphdr *)&nic.packet[ETHER_HDR_SIZE];
if ((ip->verhdrlen != 0x45) ||
- ipchksum((unsigned short *)ip, sizeof(struct iphdr)) ||
- (ip->protocol != IP_UDP)) continue;
+ ipchksum((unsigned short *)ip, sizeof(struct iphdr)) ||
+ (ip->protocol != IP_UDP)) continue;
udp = (struct udphdr *)&nic.packet[ETHER_HDR_SIZE +
- sizeof(struct iphdr)];
-
- /* BOOTP ? */
+ sizeof(struct iphdr)];
+
+ /* BOOTP ? */
bootpreply = (struct bootp_t *)&nic.packet[ETHER_HDR_SIZE];
- if ((type == AWAIT_BOOTP) &&
- (nic.packetlen >= (ETHER_HDR_SIZE +
-#ifdef NO_DHCP_SUPPORT
- sizeof(struct bootp_t))) &&
+#ifdef NO_DHCP_SUPPORT
+ min_packetlen = ETHER_HDR_SIZE + sizeof(struct bootp_t);
#else
- sizeof(struct bootp_t))-DHCP_OPT_LEN) &&
-#endif /* NO_DHCP_SUPPORT */
- (ntohs(udp->dest) == BOOTP_CLIENT) &&
- (bootpreply->bp_op == BOOTP_REPLY) &&
- (bootpreply->bp_xid == xid)) {
- arptable[ARP_CLIENT].ipaddr.s_addr =
- bootpreply->bp_yiaddr.s_addr;
+ min_packetlen = ETHER_HDR_SIZE + sizeof(struct bootp_t) - DHCP_OPT_LEN;
+#endif
+ if (
+ (type == AWAIT_BOOTP) &&
+ (nic.packetlen >= min_packetlen) &&
+ (ntohs(udp->dest) == BOOTP_CLIENT) &&
+ (bootpreply->bp_op == BOOTP_REPLY) &&
+ (bootpreply->bp_xid == xid)
+ ) {
+ arptable[ARP_CLIENT].ipaddr.s_addr = bootpreply->bp_yiaddr.s_addr;
#ifndef NO_DHCP_SUPPORT
dhcp_addr.s_addr = bootpreply->bp_yiaddr.s_addr;
#endif /* NO_DHCP_SUPPORT */
netmask = default_netmask();
- arptable[ARP_SERVER].ipaddr.s_addr =
- bootpreply->bp_siaddr.s_addr;
+ arptable[ARP_SERVER].ipaddr.s_addr = bootpreply->bp_siaddr.s_addr;
memset(arptable[ARP_SERVER].node, 0, ETHER_ADDR_SIZE); /* Kill arp */
- arptable[ARP_GATEWAY].ipaddr.s_addr =
- bootpreply->bp_giaddr.s_addr;
+ arptable[ARP_GATEWAY].ipaddr.s_addr = bootpreply->bp_giaddr.s_addr;
memset(arptable[ARP_GATEWAY].node, 0, ETHER_ADDR_SIZE); /* Kill arp */
if (bootpreply->bp_file[0]) {
memcpy(kernel_buf, bootpreply->bp_file, 128);
kernel = kernel_buf;
}
memcpy((char *)BOOTP_DATA_ADDR, (char *)bootpreply, sizeof(struct bootpd_t));
- decode_rfc1533(BOOTP_DATA_ADDR->bootp_reply.bp_vend,
-#ifdef NO_DHCP_SUPPORT
- 0, BOOTP_VENDOR_LEN +
- MAX_BOOTP_EXTLEN, 1);
-#else
- 0, DHCP_OPT_LEN, 1);
-#endif /* NO_DHCP_SUPPORT */
- return(1);
+#ifdef NO_DHCP_SUPPORT
+ if (decode_rfc1533(BOOTP_DATA_ADDR->bootp_reply.bp_vend,
+ 0, BOOTP_VENDOR_LEN +
+ MAX_BOOTP_EXTLEN, 1)) {
+ return(1);
+ }
+ else {
+ continue;
+ }
+#else
+ if (decode_rfc1533(BOOTP_DATA_ADDR->bootp_reply.bp_vend,
+ 0, DHCP_OPT_LEN, 1)) {
+ return(1);
+ }
+ else {
+ continue;
+ }
}
-
+#endif /* NO_DHCP_SUPPORT */
#ifdef DOWNLOAD_PROTO_TFTP
- /* TFTP ? */
+ /* TFTP ? */
if ((type == AWAIT_TFTP) &&
- (ntohs(udp->dest) == ival)) return(1);
+ (ntohs(udp->dest) == ival)) return(1);
#endif /* DOWNLOAD_PROTO_TFTP */
-
+
#ifdef DOWNLOAD_PROTO_NFS
- /* RPC ? */
+ /* RPC ? */
rpc = (struct rpc_t *)&nic.packet[ETHER_HDR_SIZE];
if ((type == AWAIT_RPC) &&
(ntohs(udp->dest) == ival) &&
@@ -889,19 +1001,19 @@ int await_reply(int type, int ival, void
return (1);
}
#endif /* DOWNLOAD_PROTO_NFS */
-
+
} else {
- /* Check for abort key only if the Rx queue is empty -
- * as long as we have something to process, don't
- * assume that something failed. It is unlikely that
- * we have no processing time left between packets. */
+ /* Check for abort key only if the Rx queue is empty -
+ * as long as we have something to process, don't
+ * assume that something failed. It is unlikely that
+ * we have no processing time left between packets. */
if (iskey() && (getchar() == ESC))
#ifdef EMERGENCYDISKBOOT
exit(0);
#else
- longjmp(jmp_bootmenu,1);
+ longjmp(jmp_bootmenu,1);
#endif
- /* Do the timeout after at least a full queue walk. */
+ /* Do the timeout after at least a full queue walk. */
if ((timeout == 0) || (currticks() > time)) {
break;
}
@@ -914,13 +1026,15 @@ int await_reply(int type, int ival, void
DECODE_RFC1533 - Decodes RFC1533 header
**************************************************************************/
int decode_rfc1533(p, block, len, eof)
- register unsigned char *p;
- int block, len, eof;
+ register unsigned char *p;
+ int block, len, eof;
{
static unsigned char *extdata = NULL, *extend = NULL;
unsigned char *extpath = NULL;
unsigned char *endp;
-
+#ifdef SERVER_IDENT
+ char rcvd_server_ident[9] = {};
+#endif
if (block == 0) {
#ifdef IMAGE_MENU
memset(imagelist, 0, sizeof(imagelist));
@@ -1002,11 +1116,16 @@ int decode_rfc1533(p, block, len, eof)
}
#endif
#ifdef MOTD
- else if (c >= RFC1533_VENDOR_MOTD &&
+ else if (c >= RFC1533_VENDOR_MOTD &&
c < RFC1533_VENDOR_MOTD +
RFC1533_VENDOR_NUMOFMOTD)
motd[c - RFC1533_VENDOR_MOTD] = p;
#endif
+#ifdef SERVER_IDENT
+ else if (c == RFC1533_VENDOR_SERVER_IDENT) {
+ memcpy(rcvd_server_ident,p+2,TAG_LEN(p));
+ }
+#endif
else {
#if 0
unsigned char *q;
@@ -1018,6 +1137,30 @@ int decode_rfc1533(p, block, len, eof)
}
p += TAG_LEN(p) + 2;
}
+#if defined(SERVER_IDENT) && defined(DBG_IDENT)
+ if (strcasecmp(rcvd_server_ident,server_ident)) {
+ char ip[16];
+
+ inet_ntoa(dhcp_server,ip);
+ printf("[%s]: Option %d (%s), invalid response. Wanted (%s).\n",
+ ip,
+ RFC1533_VENDOR_SERVER_IDENT,
+ rcvd_server_ident,
+ server_ident);
+ strcpy(rcvd_server_ident,"");
+ return(0);
+ }
+ else {
+ char ip[16];
+
+ inet_ntoa(dhcp_server,ip);
+ printf("[%s]: Option %d (%s), valid response.\n",
+ ip,
+ RFC1533_VENDOR_SERVER_IDENT,
+ rcvd_server_ident);
+ strcpy(rcvd_server_ident,"");
+ }
+#endif
extdata = extend = endp;
if (block == 0 && extpath != NULL) {
char fname[64];
@@ -1103,3 +1246,4 @@ void cleanup(void)
* c-basic-offset: 8
* End:
*/
+
--------------4734FDA0BF2F2FBDF8EB8DF6
Content-Type: text/plain; charset=us-ascii;
name="misc.c.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="misc.c.diff"
--- etherboot-4.6.0/src/misc.c Tue Apr 25 08:30:25 2000
+++ etherboot-4.5.6-new/src/misc.c Wed Apr 26 16:26:38 2000
@@ -140,9 +140,11 @@ void printf(const char *fmt, ...)
#ifdef IMAGE_MENU
/**************************************************************************
-INET_ATON - Convert an ascii x.x.x.x to binary form
+INET_NTOA - Convert an ascii x.x.x.x to binary form
**************************************************************************/
-int inet_aton(char *p, in_addr *i)
+int inet_aton(p, i)
+ char *p;
+ in_addr *i;
{
unsigned long ip = 0;
int val;
@@ -165,7 +167,19 @@ int inet_aton(char *p, in_addr *i)
#endif /* IMAGE_MENU */
-int getdec(char **ptr)
+#if defined(CLIENT_IDENT) || defined (SERVER_IDENT)
+/**************************************************************************
+INET_NTOA - Convert a binary form to an ascii x.x.x.x form
+**************************************************************************/
+char *inet_ntoa(in_addr i, char *p)
+{
+ sprintf(p,"%d.%d.%d.%d",i.s_addr>>24,i.s_addr<<8>>24,i.s_addr<<16>>24,i.s_addr<<24>>24);
+ return p;
+}
+#endif
+
+int getdec(ptr)
+ char **ptr;
{
char *p = *ptr;
int ret=0;
@@ -308,6 +322,45 @@ iskey(void)
return 0;
}
#endif /* ETHERBOOT32 */
+
+/**************************************************************************
+GETSTR - Read a string of size bytes from the keyboard
+(without echoing the final return)
+**************************************************************************/
+void getstr(char *s, int size)
+{
+ int i=0;
+ char c;
+
+ while(1) {
+ c = getc();
+
+
+ if (c == 13)
+ {
+ s[i]='\0';
+ break;
+ }
+ else if (
+ ((c >= 'a') && (c <='z')) ||
+ ((c >= 'A') && (c <='Z')) ||
+ ((c >= '0') && (c <='9'))
+ ) {
+ if (i==8) {
+ putchar(8);
+ putchar(s[i-1]=c);
+ }
+ else
+ putchar(s[i++]=c);
+ }
+ else if ( c == 8 ) {
+ if (i != 0) {
+ --i;
+ s[i]='\0';
+ putchar(8);
+ putchar(32);
+ putchar(8);
+ }
+ }
+ }
+}
/*
* Local variables:
--------------4734FDA0BF2F2FBDF8EB8DF6
Content-Type: text/plain; charset=us-ascii;
name="Config.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="Config.diff"
--- etherboot-4.6.0/src/Config Tue Apr 25 08:30:57 2000
+++ etherboot-4.5.6-new/src/Config Wed Apr 26 15:55:57 2000
@@ -59,6 +59,27 @@
# may no longer be appropriate. You might need to set
# MAX_ARP_RETRIES, MAX_BOOTP_RETRIES, MAX_TFTP_RETRIES
# and MAX_RPC_RETRIES to a larger value.
+# -DDEFAULT_CLIENT_IDENT
+# The default client identifier that is sent to the
+# DHCP server to identify itself.
+# -DDEFAULT_SERVER_IDENT
+# The expected response that the client will wait
+# for when a DHCP server responds to the the initial
+# client discovery.
+# -DASK_CLIENT_IDENT
+# -DASK_SERVER_IDENT
+# If these are set, the boot process will include
+# a question period where you can manualy specify
+# the client and/or server identifiers.
+# -DSHIFTED_IDENT_INPUT
+# If this is set then the boot process will only
+# ask for the identifiers if one of the shift keys
+# is pressed. Else it will send the default identifiers
+# automatically
+# -DDBG_IDENT
+# This will give show all the DHCP responses with
+# their identifiers.
+#
#
# Etherboot/32 only options:
# -DAOUT_IMAGE - Add a.out kernel boot support (generic)
@@ -147,6 +168,14 @@ CFLAGS32+= -DASK_BOOT=3 -DANS_DEFAULT=AN
# Change download protocol to NFS. Only available for Etherboot/32 for now.
# CFLAGS32+= -DDOWNLOAD_PROTO_NFS
+
+# If you have more than one DHCP server you might want to
+# enable these to be able to sort out which one you want to
+# respond to.
+CFLAGS32+= -DDEFAULT_CLIENT_IDENT=\"BOOT\" -DDEFAULT_SERVER_IDENT=\"BOOT\"
+CFLAGS32+= -DASK_CLIENT_IDENT -DASK_SERVER_IDENT
+CFLAGS32+= -DSHIFTED_IDENT_INPUT
+CFLAGS32+= -DDBG_IDENT
# These flags affect the loader that is prepended to the Etherboot image
LCONFIG+= -DMOVEROM
--------------4734FDA0BF2F2FBDF8EB8DF6
Content-Type: text/plain; charset=us-ascii;
name="etherboot.h.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="etherboot.h.diff"
--- etherboot-4.6.0/src/etherboot.h Tue Apr 25 08:30:55 2000
+++ etherboot-4.5.6-new/src/etherboot.h Wed Apr 26 16:07:16 2000
@@ -8,6 +8,14 @@ Author: Martin Renters
#include "osdep.h"
+#if (! defined(NO_DHCP_SUPPORT)) && (defined(ASK_CLIENT_IDENT) || defined(DEFAULT_CLIENT_IDENT))
+# define CLIENT_IDENT
+#endif
+
+#if (! defined(NO_DHCP_SUPPORT)) && (defined(ASK_SERVER_IDENT) || defined(DEFAULT_SERVER_IDENT))
+# define SERVER_IDENT
+#endif
+
/* These could be customised for different languages perhaps */
#define ASK_PROMPT "Boot from (N)etwork or from (L)ocal? "
#define ANS_NETWORK 'N'
@@ -224,6 +232,12 @@ Author: Martin Renters
#ifdef IMAGE_FREEBSD
#define RFC1533_VENDOR_HOWTO 132
#endif
+#ifdef CLIENT_IDENT
+#define RFC1533_VENDOR_CLIENT_IDENT 208
+#endif
+#ifdef SERVER_IDENT
+#define RFC1533_VENDOR_SERVER_IDENT 208
+#endif
#define RFC1533_VENDOR_MNUOPTS 160
#define RFC1533_VENDOR_SELECTION 176
#define RFC1533_VENDOR_MOTD 184
@@ -477,11 +491,13 @@ extern int getdec P((char **));
extern void printf P((const char *, ...));
extern char *sprintf P((char *, const char *, ...));
extern int inet_aton P((char *p, in_addr *i));
+extern char *inet_ntoa P((in_addr i, char *p));
extern void gateA20_set P((void));
extern void gateA20_unset P((void));
extern void putchar P((int));
extern int getchar P((void));
extern int iskey P((void));
+extern void getstr P((char *s, int size));
/* start*.S */
extern int getc P((void));
@@ -528,8 +544,10 @@ extern int hostnamelen;
extern unsigned long netmask;
extern int jmp_bootmenu[10];
extern struct arptable_t arptable[MAX_ARP];
-#ifdef IMAGE_MENU
+#ifdef MOTD
extern char *motd[RFC1533_VENDOR_NUMOFMOTD];
+#endif
+#ifdef IMAGE_MENU
extern int menutmo,menudefault;
extern unsigned char *defparams;
extern int defparams_max;
--------------4734FDA0BF2F2FBDF8EB8DF6--
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