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Differential D10981 Diff 28958 head/lib/libstand/bootp.c

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head/lib/libstand/bootp.c

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#ifdef SUPPORT_DHCP #ifdef SUPPORT_DHCP
static char expected_dhcpmsgtype = -1, dhcp_ok; static char expected_dhcpmsgtype = -1, dhcp_ok;
struct in_addr dhcp_serverip; struct in_addr dhcp_serverip;
#endif #endif
struct bootp *bootp_response; struct bootp *bootp_response;
size_t bootp_response_size; size_t bootp_response_size;
static void
bootp_fill_request(unsigned char *bp_vend)
{
/*
* We are booting from PXE, we want to send the string
* 'PXEClient' to the DHCP server so you have the option of
* only responding to PXE aware dhcp requests.
*/
bp_vend[0] = TAG_CLASSID;
bp_vend[1] = 9;
bcopy("PXEClient", &bp_vend[2], 9);
bp_vend[11] = TAG_USER_CLASS;
/* len of each user class + number of user class */
bp_vend[12] = 8;
/* len of the first user class */
bp_vend[13] = 7;
bcopy("FreeBSD", &bp_vend[14], 7);
bp_vend[21] = TAG_PARAM_REQ;
bp_vend[22] = 7;
bp_vend[23] = TAG_ROOTPATH;
bp_vend[24] = TAG_HOSTNAME;
bp_vend[25] = TAG_SWAPSERVER;
bp_vend[26] = TAG_GATEWAY;
bp_vend[27] = TAG_SUBNET_MASK;
bp_vend[28] = TAG_INTF_MTU;
bp_vend[29] = TAG_SERVERID;
bp_vend[30] = TAG_END;
}
/* Fetch required bootp infomation */ /* Fetch required bootp infomation */
void void
bootp(int sock) bootp(int sock)
{ {
void *pkt; void *pkt;
struct iodesc *d; struct iodesc *d;
struct bootp *bp; struct bootp *bp;
struct { struct {
Show All 27 Lines#endif
bp->bp_xid = htonl(d->xid); bp->bp_xid = htonl(d->xid);
MACPY(d->myea, bp->bp_chaddr); MACPY(d->myea, bp->bp_chaddr);
strncpy(bp->bp_file, bootfile, sizeof(bp->bp_file)); strncpy(bp->bp_file, bootfile, sizeof(bp->bp_file));
bcopy(vm_rfc1048, bp->bp_vend, sizeof(vm_rfc1048)); bcopy(vm_rfc1048, bp->bp_vend, sizeof(vm_rfc1048));
#ifdef SUPPORT_DHCP #ifdef SUPPORT_DHCP
bp->bp_vend[4] = TAG_DHCP_MSGTYPE; bp->bp_vend[4] = TAG_DHCP_MSGTYPE;
bp->bp_vend[5] = 1; bp->bp_vend[5] = 1;
bp->bp_vend[6] = DHCPDISCOVER; bp->bp_vend[6] = DHCPDISCOVER;
bootp_fill_request(&bp->bp_vend[7]);
/*
* We are booting from PXE, we want to send the string
* 'PXEClient' to the DHCP server so you have the option of
* only responding to PXE aware dhcp requests.
*/
bp->bp_vend[7] = TAG_CLASSID;
bp->bp_vend[8] = 9;
bcopy("PXEClient", &bp->bp_vend[9], 9);
bp->bp_vend[18] = TAG_USER_CLASS;
/* len of each user class + number of user class */
bp->bp_vend[19] = 8;
/* len of the first user class */
bp->bp_vend[20] = 7;
bcopy("FreeBSD", &bp->bp_vend[21], 7);
bp->bp_vend[28] = TAG_PARAM_REQ;
bp->bp_vend[29] = 7;
bp->bp_vend[30] = TAG_ROOTPATH;
bp->bp_vend[31] = TAG_HOSTNAME;
bp->bp_vend[32] = TAG_SWAPSERVER;
bp->bp_vend[33] = TAG_GATEWAY;
bp->bp_vend[34] = TAG_SUBNET_MASK;
bp->bp_vend[35] = TAG_INTF_MTU;
bp->bp_vend[36] = TAG_SERVERID;
bp->bp_vend[37] = TAG_END;
#else #else
bp->bp_vend[4] = TAG_END; bp->bp_vend[4] = TAG_END;
#endif #endif
d->myip.s_addr = INADDR_ANY; d->myip.s_addr = INADDR_ANY;
d->myport = htons(IPPORT_BOOTPC); d->myport = htons(IPPORT_BOOTPC);
d->destip.s_addr = INADDR_BROADCAST; d->destip.s_addr = INADDR_BROADCAST;
d->destport = htons(IPPORT_BOOTPS); d->destport = htons(IPPORT_BOOTPS);
Show All 19 Lines if(dhcp_ok) {
bcopy(&rbootp->bp_yiaddr, &bp->bp_vend[9], 4); bcopy(&rbootp->bp_yiaddr, &bp->bp_vend[9], 4);
bp->bp_vend[13] = TAG_SERVERID; bp->bp_vend[13] = TAG_SERVERID;
bp->bp_vend[14] = 4; bp->bp_vend[14] = 4;
bcopy(&dhcp_serverip.s_addr, &bp->bp_vend[15], 4); bcopy(&dhcp_serverip.s_addr, &bp->bp_vend[15], 4);
bp->bp_vend[19] = TAG_LEASETIME; bp->bp_vend[19] = TAG_LEASETIME;
bp->bp_vend[20] = 4; bp->bp_vend[20] = 4;
leasetime = htonl(300); leasetime = htonl(300);
bcopy(&leasetime, &bp->bp_vend[21], 4); bcopy(&leasetime, &bp->bp_vend[21], 4);
bp->bp_vend[25] = TAG_CLASSID; bootp_fill_request(&bp->bp_vend[25]);
bp->bp_vend[26] = 9;
bcopy("PXEClient", &bp->bp_vend[27], 9);
bp->bp_vend[36] = TAG_END;
expected_dhcpmsgtype = DHCPACK; expected_dhcpmsgtype = DHCPACK;
free(pkt); free(pkt);
if(sendrecv(d, if(sendrecv(d,
bootpsend, bp, sizeof(*bp), bootpsend, bp, sizeof(*bp),
bootprecv, &pkt, (void **)&rbootp) == -1) { bootprecv, &pkt, (void **)&rbootp) == -1) {
printf("DHCPREQUEST failed\n"); printf("DHCPREQUEST failed\n");
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