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Add -ip-options support

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This commit is contained in:
fyodor
2006-08-29 03:26:00 +00:00
parent 426a6d36db
commit 9cbae88f44
13 changed files with 769 additions and 244 deletions
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20
nmap.cc
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@@ -257,6 +257,7 @@ printf("%s %s ( %s )\n"
" -e <iface>: Use specified interface\n"
" -g/--source-port <portnum>: Use given port number\n"
" --data-length <num>: Append random data to sent packets\n"
" --ip-options <options>: Send packets with specified ip options\n"
" --ttl <val>: Set IP time-to-live field\n"
" --spoof-mac <mac address/prefix/vendor name>: Spoof your MAC address\n"
" --badsum: Send packets with a bogus TCP/UDP checksum\n"
@@ -583,6 +584,8 @@ int nmap_main(int argc, char *argv[]) {
{"log-errors", no_argument, 0, 0},
{"dns_servers", required_argument, 0, 0},
{"dns-servers", required_argument, 0, 0},
{"ip_options", required_argument, 0, 0},
{"ip-options", required_argument, 0, 0},
{0, 0, 0, 0}
};
@@ -792,6 +795,13 @@ int nmap_main(int argc, char *argv[]) {
o.fragscan = atoi(optarg);
if (o.fragscan <= 0 || o.fragscan % 8 != 0)
fatal("Data payload MTU must be >0 and multiple of 8");
} else if (strcmp(long_options[option_index].name, "ip-options") == 0){
o.ipoptions = (u8*) safe_malloc(4*10+1);
o.ipoptionslen = parse_ip_options(optarg, o.ipoptions, 4*10+1, &o.ipopt_firsthop, &o.ipopt_lasthop);
if(o.ipoptionslen > 4*10)
fatal("Ip options can't be more than 40 bytes long");
if(o.ipoptionslen %4 != 0)
fatal("Ip options must be multiple of 4 (read length is %i bytes)", o.ipoptionslen);
} else {
fatal("Unknown long option (%s) given@#!$#$", long_options[option_index].name);
}
@@ -1102,6 +1112,16 @@ int nmap_main(int argc, char *argv[]) {
o.ValidateOptions();
// print ip options
if((o.debugging || o.packetTrace()) && o.ipoptionslen){
char buf[256]; // 256 > 5*40
bintohexstr(buf, sizeof(buf), (char*)o.ipoptions, o.ipoptionslen);
if(o.ipoptionslen>=8) // at least one ip address
log_write(LOG_STDOUT, "Binary ip options to be send:\n%s", buf);
log_write(LOG_STDOUT, "Parsed ip options to be send:\n%s\n",
print_ip_options(o.ipoptions, o.ipoptionslen));
}
/* Open the log files, now that we know whether the user wants them appended
or overwritten */
if (normalfilename)