/*
* compile WORD = WORD, becomes a single node with a subop
*/
void
compile_cmp(char *proto, Filter *f, Field *fld)
{
uint8_t x[IPaddrlen];
char *v;
if(f->op != '=')
sysfatal("internal error: compile_cmp %s: not a cmp", proto);
for(; fld->name != nil; fld++){
if(strcmp(f->l->s, fld->name) == 0){
f->op = WORD;
f->subop = fld->subop;
switch(fld->ftype){
case Fnum:
f->ulv = atoi(f->r->s);
break;
case Fether:
v = csgetvalue(nil, "sys", (char*)f->r->s,
"ether", 0);
if(v){
parseether(f->a, v);
free(v);
} else
parseether(f->a, f->r->s);
break;
case Fv4ip:
v = csgetvalue(nil, "sys", (char*)f->r->s,
"ip", 0);
if(v){
f->ulv = parseip(x, v);
free(v);
}else
f->ulv = parseip(x, f->r->s);
break;
case Fv6ip:
v = csgetvalue(nil, "sys", (char*)f->r->s,
"ipv6", 0);
if(v){
parseip(f->a, v);
free(v);
}else
parseip(f->a, f->r->s);
break;
case Fba:
parseba(f->a, f->r->s);
break;
default:
sysfatal("internal error: compile_cmp %s: %d",
proto, fld->ftype);
}
f->l = f->r = nil;
return;
}
}
sysfatal("unknown %s field in: %s = %s", proto, f->l->s, f->r->s);
}
void
main(int argc, char* argv[])
{
int fd, nw;
char *argmac, *pass, *address;
uchar mac[Eaddrlen];
static Wolpack w = {
.magic { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, }
};
address = pass = nil;
fmtinstall('E', eipfmt);
ARGBEGIN{
case 'a':
address = EARGF(usage());
break;
case 'c':
pass = EARGF(usage());
break;
case 'v':
verbose++;
break;
default:
usage();
}ARGEND
if(argc != 1)
usage();
argmac = argv[0];
if(verbose)
print("mac is %s, pass is %s\n", argmac, pass);
parseether(mac, argmac);
fillmac(&w, mac);
if(pass){
if(strlen(pass) > 6)
sysfatal("password greater than 6 bytes");
strcpy(w.pass, pass);
}
if(verbose)
dumppack(&w);
if(!address)
address = "udp!255.255.255.255!0";
fd = dial(address, nil, nil, nil);
if(fd < 0)
sysfatal("%s: %r", address);
nw = write(fd, &w, sizeof w);
if(nw != sizeof w)
sysfatal("error sending: %r");
exits(0);
}
static void
process(char *ether)
{
uchar ethaddr[6], ipaddr[IPaddrlen], ipv4[IPv4addrlen];
if (parseether(ethaddr, ether) < 0)
sysfatal("%s: not an ether address", ether);
if (v4_6to4) {
v4parseip(ipv4, v4_6to4);
eaip26to4(ipaddr, ethaddr, ipv4);
} else
ea2lla(ipaddr, ethaddr);
print("%I\n", ipaddr);
}
void
setmask(char *ml)
{
char *p;
int n;
for (; ml; ml=p) {
p = strchr(ml, ',');
if (p)
*p++ = '\0';
n = parseether(&masks[nmasks*Alen], ml);
if (n < 0)
fprintf(stderr, "ignoring mask %s, parseether failure\n", ml);
else
nmasks++;
}
}
static long
ctl(Ether *ether, void *buf, long n)
{
uchar ea[Eaddrlen];
Cmdbuf *cb;
cb = parsecmd(buf, n);
if(cb->nf >= 2
&& strcmp(cb->f[0], "ea")==0
&& parseether(ea, cb->f[1]) == 0){
free(cb);
memmove(ether->ea, ea, Eaddrlen);
memmove(ether->addr, ether->ea, Eaddrlen);
return 0;
}
free(cb);
error(Ebadctl);
return -1; /* not reached */
}
static void
getaddr(char *path, uint8_t *ea)
{
Proc *up = externup();
char buf[6*2];
int n;
Chan *c;
snprint(up->genbuf, sizeof up->genbuf, "%s/addr", path);
c = namec(up->genbuf, Aopen, OREAD, 0);
if(waserror()) {
cclose(c);
nexterror();
}
n = c->dev->read(c, buf, sizeof buf, 0);
if(n != sizeof buf)
error("getaddr");
if(parseether(ea, buf) < 0)
error("parseether failure");
poperror();
cclose(c);
}
/*
* find out everything we can about a system from what has been
* specified.
*/
int
ipinfo(Ndb *db, char *etherin, char *ipin, char *name, Ipinfo *iip)
{
Ndbtuple *t;
Ndbs s;
char ether[Ndbvlen];
char ip[Ndbvlen];
char fsname[Ndbvlen];
char gwname[Ndbvlen];
char auname[Ndbvlen];
memset(iip, 0, sizeof(Ipinfo));
fsname[0] = 0;
gwname[0] = 0;
auname[0] = 0;
/*
* look for a matching entry
*/
t = 0;
if(etherin)
t = ndbgetval(db, &s, "ether", etherin, "ip", ip);
if(t == 0 && ipin)
t = ndbsearch(db, &s, "ip", ipin);
if(t == 0 && name)
t = ndbgetval(db, &s, ipattr(name), name, "ip", ip);
if(t){
/*
* copy in addresses and name
*/
if(lookval(t, s.t, "ip", ip))
parseip(iip->ipaddr, ip);
if(lookval(t, s.t, "ether", ether))
parseether(iip->etheraddr, ether);
lookval(t, s.t, "dom", iip->domain);
/*
* Look for bootfile, fs, and gateway.
* If necessary, search through all entries for
* this ip address.
*/
while(t){
if(iip->bootf[0] == 0)
lookval(t, s.t, "bootf", iip->bootf);
if(fsname[0] == 0)
lookval(t, s.t, "fs", fsname);
if(gwname[0] == 0)
lookval(t, s.t, "ipgw", gwname);
if(auname[0] == 0)
lookval(t, s.t, "auth", auname);
ndbfree(t);
if(iip->bootf[0] && fsname[0] && gwname[0] && auname[0])
break;
t = ndbsnext(&s, "ether", ether);
}
} else if(ipin) {
/*
* copy in addresses (all we know)
*/
parseip(iip->ipaddr, ipin);
if(etherin)
parseether(iip->etheraddr, etherin);
} else
return -1;
/*
* Look up the client's network and find a subnet mask for it.
* Fill in from the subnet (or net) entry anything we can't figure
* out from the client record.
*/
recursesubnet(db, classmask[CLASS(iip->ipaddr)], iip, fsname, gwname, auname);
/* lookup fs's and gw's ip addresses */
if(fsname[0])
lookupip(db, fsname, iip->fsip, iip);
if(gwname[0])
lookupip(db, gwname, iip->gwip, iip);
if(auname[0])
lookupip(db, auname, iip->auip, iip);
return 0;
}
void
main(int argc, char *argv[])
{
Etherpkt e;
Ippkt *ip;
long n;
int fd, cfd;
int ts, len, t;
long start;
int delta;
uchar target[6];
char buf[256];
ulong samples;
samples = -1;
ARGBEGIN{
case 'd':
debug++;
break;
case 's':
samples = atoi(ARGF());
break;
}ARGEND;
if(argc < 2){
fprint(2, "usage: %s device ip-addr [minutes-per-sample]\n", argv0);
exits("usage");
}
if(argc > 2)
delta = atoi(argv[2])*60*1000;
else
delta = 5*60*1000;
parseether(target, argv[1]);
fmtinstall('E', eipfmt);
fmtinstall('I', eipfmt);
snprint(buf, sizeof(buf), "%s!-2", argv[0]);
fd = dial(buf, 0, 0, &cfd);
if(fd < 0)
error("opening ether data");
if(write(cfd, "promiscuous", sizeof("promiscuous")-1) <= 0)
error("connecting");
start = 0;
fd = -1;
for(;;){
if(fd < 0){
fd = dial(buf, 0, 0, &cfd);
if(fd < 0)
error("opening ether data");
if(write(cfd, "promiscuous", sizeof("promiscuous")-1) <= 0)
error("connecting");
close(cfd);
}
n = read(fd, &e, sizeof(e));
if(n <= 0)
break;
ts = NetL(&e.d[60]);
n = NetS(&e.d[58]) - ETHERHDRSIZE;
if(n < 0)
continue;
if(start == 0)
start = ts;
t = NetS(e.type);
if(t == 0x0800 || (t&0xFF00) == 0x1000){
ip = (Ippkt*)e.data;
len = NetS(ip->length);
if(len > n)
len = n;
if(debug)
fprint(2, "%I -> %I %d\n", ip->src, ip->dst, len);
if(memcmp(e.s, target, 6) == 0){
protopin[0]++;
protoin[0] += len;
if(ip->proto){
protopin[ip->proto]++;
protoin[ip->proto] += len;
}
}
if(memcmp(e.d, target, 6) == 0){
protopout[0]++;
protoout[0] += len;
if(ip->proto){
protopout[ip->proto]++;
protoout[ip->proto] += len;
}
}
}
if(ts - start >= delta){
print("%8.8ld %ld", time(0), ts - start);
printproto(0);
printproto(IP_MBONEPROTO);
printproto(IP_UDPPROTO);
printproto(IP_TCPPROTO);
print("\n");
start = 0;
memset(protoin, 0, sizeof(protoin));
memset(protoout, 0, sizeof(protoout));
memset(protopin, 0, sizeof(protopin));
memset(protopout, 0, sizeof(protopout));
close(fd);
fd = -1;
if(--samples == 0)
break;
}
}
exits(0);
}
/*
* do an ipinfo with defaults
*/
int
lookupip(uchar *ipaddr, Info *iip, int gate)
{
char ip[32];
Ndbtuple *t, *nt;
char *attrs[32], **p;
if(opendb() == nil){
warning(1, "can't open db");
return -1;
}
p = attrs;
*p++ = "ip";
*p++ = "ipmask";
*p++ = "@ipgw";
if(!gate){
*p++ = "bootf";
*p++ = "bootf2";
*p++ = "@tftp";
*p++ = "@tftp2";
*p++ = "rootpath";
*p++ = "dhcp";
*p++ = "vendorclass";
*p++ = "ether";
*p++ = "dom";
*p++ = "@fs";
*p++ = "@auth";
}
*p = 0;
memset(iip, 0, sizeof(*iip));
snprint(ip, sizeof(ip), "%I", ipaddr);
t = ndbipinfo(db, "ip", ip, attrs, p - attrs);
if(t == nil)
return -1;
for(nt = t; nt != nil; nt = nt->entry){
if(strcmp(nt->attr, "ip") == 0)
setipaddr(iip->ipaddr, nt->val);
else
if(strcmp(nt->attr, "ipmask") == 0)
setipmask(iip->ipmask, nt->val);
else
if(strcmp(nt->attr, "fs") == 0)
setipaddr(iip->fsip, nt->val);
else
if(strcmp(nt->attr, "auth") == 0)
setipaddr(iip->auip, nt->val);
else
if(strcmp(nt->attr, "tftp") == 0)
setipaddr(iip->tftp, nt->val);
else
if(strcmp(nt->attr, "tftp2") == 0)
setipaddr(iip->tftp2, nt->val);
else
if(strcmp(nt->attr, "ipgw") == 0)
setipaddr(iip->gwip, nt->val);
else
if(strcmp(nt->attr, "ether") == 0){
/*
* this is probably wrong for machines with multiple
* ethers. bootp or dhcp requests could come from any
* of the ethers listed in the ndb entry.
*/
if(memcmp(iip->etheraddr, noetheraddr, 6) == 0)
parseether(iip->etheraddr, nt->val);
iip->indb = 1;
}
else
if(strcmp(nt->attr, "dhcp") == 0){
if(iip->dhcpgroup[0] == 0)
strcpy(iip->dhcpgroup, nt->val);
}
else
if(strcmp(nt->attr, "bootf") == 0){
if(iip->bootf[0] == 0)
strcpy(iip->bootf, nt->val);
}
else
if(strcmp(nt->attr, "bootf2") == 0){
if(iip->bootf2[0] == 0)
strcpy(iip->bootf2, nt->val);
}
else
if(strcmp(nt->attr, "vendor") == 0){
if(iip->vendor[0] == 0)
strcpy(iip->vendor, nt->val);
}
else
if(strcmp(nt->attr, "dom") == 0){
if(iip->domain[0] == 0)
strcpy(iip->domain, nt->val);
}
else
if(strcmp(nt->attr, "rootpath") == 0){
if(iip->rootpath[0] == 0)
strcpy(iip->rootpath, nt->val);
}
}
ndbfree(t);
maskip(iip->ipaddr, iip->ipmask, iip->ipnet);
return 0;
}