void setPWM(uint8_t counter, uint8_t compare) {
void* tcfg0 = get_addr(TCFG0);
void* v_tcntb0 = tcfg0 + (TCNTB0 & MAP_MASK);
void* v_tcmpb0 = tcfg0 + (TCMPB0 & MAP_MASK);
*(REG v_tcntb0) = counter;
*(REG v_tcmpb0) = compare;
release_addr(tcfg0);
}
static void
verify_checksum (int argc, char *argv[])
{
void *addr = NULL;
char *bp, *ep;
logChecksum *master, *checksums;
unsigned short mcsum;
int num_pages;
if (argc != 1)
{
printf ("-ERR usage: vc <file>\n");
return;
}
addr = get_addr (argv[0]);
if (addr == NULL)
{
return;
}
/* set up pointers */
bp = (char *) addr;
ep = bp + SMR_LOG_FILE_DATA_SIZE;
master = (logChecksum *) ep;
checksums = master + 1;
if (is_finalized (master))
{
num_pages = SMR_LOG_NUM_CHECKSUM - 1;
}
else
{
num_pages = master->off;
}
printf ("num_pages:%d\n", num_pages);
mcsum = crc16 ((char *) checksums, sizeof (logChecksum) * num_pages, 0);
if (mcsum != master->checksum)
{
printf ("master checksum error. expected:0x%4x master:0x%4x\n", mcsum,
master->checksum);
}
else
{
printf ("+OK checksum verified. 0x%4x\n", mcsum);
}
if (addr)
{
release_addr (addr);
}
}
static void bootp_reply(struct bootp_t *bp)
{
BOOTPClient *bc;
struct mbuf *m;
struct bootp_t *rbp;
struct sockaddr_in saddr, daddr;
struct in_addr dns_addr;
int dhcp_msg_type, val;
uint8_t *q;
int freply_nack = 0;
/* extract exact DHCP msg type */
dhcp_decode(bp->bp_vend, DHCP_OPT_LEN, &dhcp_msg_type);
dprintf("bootp packet op=%d msgtype=%d\n", bp->bp_op, dhcp_msg_type);
if (dhcp_msg_type == 0)
dhcp_msg_type = DHCPREQUEST; /* Force reply for old BOOTP clients */
if (dhcp_msg_type == DHCPRELEASE) {
release_addr(&bp->bp_ciaddr);
dprintf("released addr=%08lx\n", ntohl(bp->bp_ciaddr.s_addr));
/* This message is not to be answered in any way. */
return;
}
if (dhcp_msg_type != DHCPDISCOVER &&
dhcp_msg_type != DHCPREQUEST)
return;
/* XXX: this is a hack to get the client mac address */
memcpy(client_ethaddr, bp->bp_hwaddr, 6);
if ((m = m_get()) == NULL)
return;
m->m_data += if_maxlinkhdr;
rbp = (struct bootp_t *)m->m_data;
m->m_data += sizeof(struct udpiphdr);
memset(rbp, 0, sizeof(struct bootp_t));
if (dhcp_msg_type == DHCPDISCOVER) {
bc = get_new_addr(&daddr.sin_addr);
if (!bc) {
dprintf("no address left\n");
return;
}
memcpy(bc->macaddr, client_ethaddr, 6);
} else {
bc = find_addr(&daddr.sin_addr, bp->bp_hwaddr);
if (!bc) {
/* if never assigned, reply DHCPNACK to BROADCAST.
(windows fix because it remembers its address). */
daddr.sin_addr.s_addr = htonl(0xffffffff);
freply_nack = 1;
dprintf("reply NACK\n");
}
}
dprintf("offered addr=%08lx\n", ntohl(daddr.sin_addr.s_addr));
saddr.sin_addr.s_addr = htonl(ntohl(special_addr.s_addr) | CTL_ALIAS);
saddr.sin_port = htons(BOOTP_SERVER);
daddr.sin_port = htons(BOOTP_CLIENT);
rbp->bp_op = BOOTP_REPLY;
rbp->bp_xid = bp->bp_xid;
rbp->bp_htype = 1;
rbp->bp_hlen = 6;
memcpy(rbp->bp_hwaddr, bp->bp_hwaddr, 6);
if (freply_nack)
rbp->bp_yiaddr.s_addr = htonl(0); /* When NACK, IP address is 0. */
else
rbp->bp_yiaddr = daddr.sin_addr; /* Client IP address */
rbp->bp_siaddr = saddr.sin_addr; /* Server IP address */
q = rbp->bp_vend;
memcpy(q, rfc1533_cookie, 4);
q += 4;
if (dhcp_msg_type == DHCPDISCOVER) {
*q++ = RFC2132_MSG_TYPE;
*q++ = 1;
*q++ = DHCPOFFER;
} else if (dhcp_msg_type == DHCPREQUEST) {
*q++ = RFC2132_MSG_TYPE;
*q++ = 1;
if (freply_nack)
*q++ = DHCPNACK;
else
*q++ = DHCPACK;
}
if (dhcp_msg_type == DHCPDISCOVER ||
((dhcp_msg_type == DHCPREQUEST) && !freply_nack)) {
*q++ = RFC2132_SRV_ID;
*q++ = 4;
memcpy(q, &saddr.sin_addr, 4);
q += 4;
*q++ = RFC1533_NETMASK;
*q++ = 4;
*q++ = 0xff;
*q++ = 0xff;
*q++ = 0xff;
*q++ = 0x00;
*q++ = RFC1533_GATEWAY;
*q++ = 4;
memcpy(q, &saddr.sin_addr, 4);
q += 4;
*q++ = RFC1533_DNS;
*q++ = 4;
dns_addr.s_addr = htonl(ntohl(special_addr.s_addr) | CTL_DNS);
memcpy(q, &dns_addr, 4);
q += 4;
*q++ = RFC2132_LEASE_TIME;
*q++ = 4;
val = htonl(LEASE_TIME);
memcpy(q, &val, 4);
q += 4;
if (*slirp_hostname) {
val = strlen(slirp_hostname);
*q++ = RFC1533_HOSTNAME;
*q++ = val;
memcpy(q, slirp_hostname, val);
q += val;
}
}
*q++ = RFC1533_END;
m->m_len = sizeof(struct bootp_t) -
sizeof(struct ip) - sizeof(struct udphdr);
udp_output2(NULL, m, &saddr, &daddr, IPTOS_LOWDELAY);
}