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yconfig.cpp
301 lines (285 loc) · 10.8 KB
/
yconfig.cpp
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/****************************************************************************
Program: $Id: $
Date: $Date: $
Description: yarrp runtime configuration parsing
****************************************************************************/
#include "yarrp.h"
int verbosity;
static struct option long_options[] = {
{"srcaddr", required_argument, NULL, 'a'},
{"bgp", required_argument, NULL, 'b'},
{"blocklist", required_argument, NULL, 'B'},
{"coarse", required_argument, NULL, 'C'},
{"count", required_argument, NULL, 'c'},
{"fillmode", required_argument, NULL, 'F'},
{"poisson", required_argument, NULL, 'Z'},
{"srcmac", required_argument, NULL, 'M'},
{"help", no_argument, NULL, 'h'},
{"input", required_argument, NULL, 'i'},
{"interface", required_argument, NULL, 'I'},
{"minttl", required_argument, NULL, 'l'},
{"maxttl", required_argument, NULL, 'm'},
{"dstmac", required_argument, NULL, 'G'},
{"neighborhood", required_argument, NULL, 'n'},
{"output", required_argument, NULL, 'o'},
{"port", required_argument, NULL, 'p'},
{"probeonly", required_argument, NULL, 'P'},
{"entire", no_argument, NULL, 'Q'},
{"rate", required_argument, NULL, 'r'},
{"receiveonly", required_argument, NULL, 'R'},
{"sequential", no_argument, NULL, 's'},
{"seed", required_argument, NULL, 'S'},
{"type", required_argument, NULL, 't'},
{"verbose", no_argument, NULL, 'v'},
{"testing", no_argument, NULL, 'T'},
{"instance", required_argument, NULL, 'E'},
{"granularity", required_argument, NULL, 'g'},
{"v6eh", no_argument, NULL, 'X'},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0},
};
uint8_t *read_mac(char *str) {
uint8_t *mac = (uint8_t *) malloc (6 * sizeof(uint8_t));
mac[0] = (uint8_t) strtoul(strtok(str, ":"), NULL, 16);
for (int i=1; i < 6; i++)
mac[i] = (uint8_t) strtoul(strtok(NULL, ":"), NULL, 16);
return mac;
}
void
YarrpConfig::parse_opts(int argc, char **argv) {
int c, opt_index;
char *endptr;
if (argc <= 1)
usage(argv[0]);
type = TR_TCP_ACK;
seed = time(NULL);
#ifdef GITREV
params["Program"] = val_t("Yarrp v" + string(VERSION) + " (" + GITREV + ")", true);
#else
params["Program"] = val_t("Yarrp v" + string(VERSION), true);
#endif
params["RTT_Granularity"] = val_t("us", true);
params["Targets"] = val_t("entire", true);
while (-1 != (c = getopt_long(argc, argv, "a:b:B:c:CE:F:G:g:hi:I:l:m:M:n:o:p:PQr:RsS:t:vVTX:Z:", long_options, &opt_index))) {
switch (c) {
case 'b':
bgpfile = optarg;
params["BGP_table"] = val_t(bgpfile, true);
break;
case 'B':
blocklist = optarg;
params["Blocklist"] = val_t(blocklist, true);
break;
case 'Z':
poisson = strtol(optarg, &endptr, 10);
params["Poisson"] = val_t(to_string(poisson), true);
break;
case 'C':
coarse = true;
params["RTT_Granularity"] = val_t("ms", true);
break;
case 'c':
count = strtol(optarg, &endptr, 10);
params["Count"] = val_t(to_string(count), true);
break;
case 'F':
fillmode = strtol(optarg, &endptr, 10);
break;
case 'i':
inlist = optarg;
params["Targets"] = val_t(inlist, true);
break;
case 's':
random_scan = false;
params["Sequential"] = val_t("true", true);
break;
case 'S':
seed = strtol(optarg, &endptr, 10);
break;
case 'T':
testing = true;
break;
case 'Q':
maxttl = 32;
entire = true;
break;
case 'n':
ttl_neighborhood = strtol(optarg, &endptr, 10);
break;
case 'v':
verbosity++;
break;
case 'o':
output = optarg;
params["Output"] = val_t(output, true);
break;
case 'p':
dstport = strtol(optarg, &endptr, 10);
break;
case 'E':
instance = strtol(optarg, &endptr, 10);
params["Instance"] = val_t(to_string(instance), true);
break;
case 'P':
receive = false;
break;
case 'R':
probe = false;
break;
case 'l':
minttl = strtol(optarg, &endptr, 10);
break;
case 'm':
maxttl = strtol(optarg, &endptr, 10);
break;
case 'r':
rate = strtol(optarg, &endptr, 10);
break;
case 'I':
int_name = optarg;
break;
case 'G':
dstmac = read_mac(optarg);
break;
case 'M':
srcmac = read_mac(optarg);
break;
case 'a':
probesrc = optarg;
break;
case 'g':
granularity = strtol(optarg, &endptr, 10);
break;
case 't':
if (strcmp(optarg, "ICMP6") == 0) {
ipv6 = true;
type = TR_ICMP6;
} else if(strcmp(optarg, "UDP6") == 0) {
ipv6 = true;
type = TR_UDP6;
} else if(strcmp(optarg, "TCP6_SYN") == 0) {
ipv6 = true;
type = TR_TCP6_SYN;
} else if(strcmp(optarg, "TCP6_ACK") == 0) {
ipv6 = true;
type = TR_TCP6_ACK;
} else if(strcmp(optarg, "ICMP") == 0) {
type = TR_ICMP;
} else if(strcmp(optarg, "ICMP_REPLY") == 0) {
type = TR_ICMP_REPLY;
} else if(strcmp(optarg, "UDP") == 0) {
type = TR_UDP;
} else if(strcmp(optarg, "TCP_SYN") == 0) {
type = TR_TCP_SYN;
} else if(strcmp(optarg, "TCP_ACK") == 0) {
type = TR_TCP_ACK;
} else {
usage(argv[0]);
}
break;
case 'V':
debug(OFF, ">> yarrp v" << VERSION);
debug(OFF, ">> https://www.cmand.org/yarrp/");
exit(0);
case 'X':
v6_eh = strtol(optarg, &endptr, 10);
break;
case 'h':
default:
usage(argv[0]);
}
}
if (testing)
receive = false;
if (not testing) {
/* set default output file, if not set */
if (not output) {
output = (char *) malloc(UINT8_MAX);
snprintf(output, UINT8_MAX, "output.yrp");
}
debug(DEBUG, ">> Output: " << output);
/* set output file */
if ( (output)[0] == '-')
out = stdout;
else
out = fopen(output, "a");
if (out == NULL)
fatal("%s: cannot open %s: %s", __func__, output, strerror(errno));
}
/* set default destination port based on tracetype, if not set */
if (not dstport) {
dstport = 80;
if ( (type == TR_UDP) || (type == TR_UDP6) )
dstport = 53;
}
debug(LOW, ">> yarrp v" << VERSION);
params["Seed"] = val_t(to_string(seed), true);
params["Random"] = val_t(to_string(random_scan), true);
params["Rate"] = val_t(to_string(rate), true);
params["Trace_Type"] = val_t(Tr_Type_String[type], true);
if (ipv6) {
params["v6_EH"] = val_t(to_string(v6_eh), true);
params["Granularity"] = val_t(to_string(granularity), true);
}
params["Start"] = val_t("unknown", true);
params["Fill_Mode"] = val_t(to_string(fillmode), true);
params["Min_TTL"] = val_t(to_string(minttl), true);
params["Max_TTL"] = val_t(to_string(maxttl), true);
params["TTL_Nbrhd"] = val_t(to_string(ttl_neighborhood), true);
params["Dst_Port"] = val_t(to_string(dstport), true);
params["Output_Fields"] = val_t("target sec usec type code ttl hop rtt ipid psize rsize rttl rtos mpls count", true);
}
void YarrpConfig::set(string key, string val, bool isset) {
params[key] = val_t(val, isset);
}
void
YarrpConfig::dump(FILE *fd) {
for (params_t::iterator i = params.begin(); i != params.end(); i++ ) {
string key = i->first;
val_t val = i->second;
if (val.second)
fprintf(fd, "# %s: %s\n", key.c_str(), val.first.c_str());
}
fflush(fd);
}
void
YarrpConfig::usage(char *prog) {
cout << "Usage: " << prog << " [OPTIONS] [targets]" << endl
<< "General options:" << endl
<< " -o, --output Output file (default: output.yrp)" << endl
<< " -t, --type Probe type: ICMP, ICMP_REPLY, TCP_SYN, TCP_ACK, UDP," << endl
<< " ICMP6, UDP6, TCP6_SYN, TCP6_ACK" << endl
<< " (default: TCP_ACK)" << endl
<< " -r, --rate Scan rate in pps (default: 10)" << endl
<< " -c, --count Probes to issue (default: unlimited)" << endl
<< " -v, --verbose verbose (default: off)" << endl
<< " -S, --seed Seed (default: random)" << endl
<< " -a, --srcaddr Source address of probes (default: auto)" << endl
<< " -p, --port Transport dst port (default: 80)" << endl
<< " -T, --test Don't send probes (default: off)" << endl
<< " -E, --instance Prober instance (default: 0)" << endl
<< "Target options:" << endl
<< " -i, --input Input target file" << endl
<< " -b, --bgp BGP table (default: none)" << endl
<< " -B, --blocklist Prefix blocklist (default: none)" << endl
<< " -Q, --entire Entire IPv4/IPv6 Internet (default: off)" << endl
<< "TTL options:" << endl
<< " -l, --minttl Minimum TTL (default: 1)" << endl
<< " -m, --maxttl Maximum TTL (default: 16)" << endl
<< " -F, --fillmode Fill mode maxttl (default: 32)" << endl
<< " -s, --sequential Scan sequentially (default: random)" << endl
<< " -n, --neighborhood Neighborhood TTL (default: 0)" << endl
<< " -Z, --poisson Poisson TTLs (default: uniform)" << endl
<< "IPv6 options:" << endl
<< " -I, --interface Network interface (required for IPv6)" << endl
<< " -G, --dstmac MAC of gateway router (default: auto)" << endl
<< " -M, --srcmac MAC of probing host (default: auto)" << endl
<< " -g, --granularity Granularity to probe input subnets (default: 50)" << endl
<< " -X, --v6eh Ext Header number to add (default: none)" << endl
/* Undocumented options */
// << " -C, --coarse Coarse ms timestamps (default: us)" << endl
// << " -P, --probeonly Probe only, don't receive" << endl
// << " -R, --receiveonly Receive only, don't probe" << endl
<< endl;
exit(-1);
}