ldns_status
ldns_resolver_new_default(ldns_resolver **res) {
ldns_resolver *r;
ldns_rdf *tmp;
HKEY hKey;
DWORD data_sz;
char* buf;
char* addr;
RegOpenKeyEx(HKEY_LOCAL_MACHINE,
"SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters",
0, KEY_QUERY_VALUE, &hKey);
RegQueryValueEx(hKey, "DhcpNameServer", NULL, NULL, NULL, &data_sz);
buf = (char*)malloc(data_sz + 1);
RegQueryValueEx(hKey, "DhcpNameServer", NULL, NULL, (LPBYTE)buf, &data_sz);
RegCloseKey(hKey);
if(buf[data_sz - 1] != 0) {
buf[data_sz] = 0;
}
r = ldns_resolver_new();
if(!r) {
free(buf);
return LDNS_STATUS_MEM_ERR;
}
addr = strtok(buf, " ");
while(addr != NULL) {
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, addr);
if (!tmp) {
// try ip4
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, addr);
}
// could not parse it, exit
if (!tmp) {
ldns_resolver_deep_free(r);
free(buf);
return LDNS_STATUS_SYNTAX_ERR;
}
(void)ldns_resolver_push_nameserver(r, tmp);
ldns_rdf_deep_free(tmp);
addr = strtok(NULL, " ");
}
free(buf);
if(res) {
*res = r;
return LDNS_STATUS_OK;
} else {
return LDNS_STATUS_NULL;
}
}
ldns_resolver* createResolver(const char *dnsserver) {
ldns_resolver *res = NULL;
ldns_status status;
ldns_rdf *ns_rdf;
if (dnsserver) {
// Use the given DNS server
res = ldns_resolver_new();
if (!res)
return NULL;
// Create rdf from dnsserver
ns_rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, dnsserver);
#ifdef USE_IPV6
if (!ns_rdf)
ns_rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, dnsserver);
#endif
if (!ns_rdf) {
ldns_resolver_deep_free(res);
return NULL;
} else {
status = ldns_resolver_push_nameserver(res, ns_rdf);
ldns_rdf_deep_free(ns_rdf);
if (status != LDNS_STATUS_OK) {
ldns_resolver_free(res);
return NULL;
}
}
} else {
// Use a DNS server from resolv.conf
status = ldns_resolver_new_frm_file(&res, NULL);
if (status != LDNS_STATUS_OK) {
ldns_resolver_free(res);
return NULL;
}
}
// Enable TCP if requested
ldns_resolver_set_usevc(res, mp_ldns_usevc);
return res;
}
switch_status_t ldns_lookup(const char *number, const char *root, char *server_name[ENUM_MAXNAMESERVERS] , enum_record_t **results)
{
ldns_resolver *res = NULL;
ldns_rdf *domain = NULL;
ldns_pkt *p = NULL;
ldns_rr_list *naptr = NULL;
ldns_status s = LDNS_STATUS_ERR;
ldns_rdf *serv_rdf;
switch_status_t status = SWITCH_STATUS_FALSE;
char *name = NULL;
struct timeval to = { 0, 0};
int inameserver = 0;
int added_server = 0;
if (!(name = reverse_number(number, root))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Parse Error!\n");
goto end;
}
if (!(domain = ldns_dname_new_frm_str(name))) {
goto end;
}
if (server_name) {
res = ldns_resolver_new();
switch_assert(res);
for(inameserver=0; inameserver<ENUM_MAXNAMESERVERS; inameserver++) {
if ( server_name[inameserver] != NULL ) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Adding Nameserver [%s]\n", server_name[inameserver]);
if ((serv_rdf = ldns_rdf_new_addr_frm_str( server_name[inameserver] ))) {
s = ldns_resolver_push_nameserver(res, serv_rdf);
ldns_rdf_deep_free(serv_rdf);
added_server = 1;
}
}
}
}
if (!added_server) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No Nameservers specified, using host default\n");
/* create a new resolver from /etc/resolv.conf */
s = ldns_resolver_new_frm_file(&res, NULL);
}
if (s != LDNS_STATUS_OK) {
goto end;
}
to.tv_sec = globals.timeout / 1000;
to.tv_usec = (globals.timeout % 1000) * 1000;
ldns_resolver_set_timeout(res, to);
ldns_resolver_set_retry(res, (uint8_t)globals.retries);
ldns_resolver_set_random(res, globals.random);
if ((p = ldns_resolver_query(res,
domain,
LDNS_RR_TYPE_NAPTR,
LDNS_RR_CLASS_IN,
LDNS_RD))) {
/* retrieve the NAPTR records from the answer section of that
* packet
*/
if ((naptr = ldns_pkt_rr_list_by_type(p, LDNS_RR_TYPE_NAPTR, LDNS_SECTION_ANSWER))) {
size_t i;
ldns_rr_list_sort(naptr);
for (i = 0; i < ldns_rr_list_rr_count(naptr); i++) {
parse_naptr(ldns_rr_list_rr(naptr, i), number, results);
}
//ldns_rr_list_print(stdout, naptr);
ldns_rr_list_deep_free(naptr);
status = SWITCH_STATUS_SUCCESS;
}
}
end:
switch_safe_free(name);
if (domain) {
ldns_rdf_deep_free(domain);
}
if (p) {
ldns_pkt_free(p);
}
if (res) {
ldns_resolver_deep_free(res);
}
return status;
}
int
main(int argc, char *argv[])
{
ldns_resolver *res;
ldns_rdf *domain;
ldns_pkt *p;
ldns_rr_list *mx;
ldns_status s;
p = NULL;
mx = NULL;
domain = NULL;
res = NULL;
if (argc != 2) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
} else {
/* create a rdf from the command line arg */
domain = ldns_dname_new_frm_str(argv[1]);
if (!domain) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
}
}
/* create a new resolver from /etc/resolv.conf */
s = ldns_resolver_new_frm_file(&res, NULL);
if (s != LDNS_STATUS_OK) {
exit(EXIT_FAILURE);
}
/* use the resolver to send a query for the mx
* records of the domain given on the command line
*/
std::clock_t start;
start = std::clock();
p = ldns_resolver_query(res,
domain,
LDNS_RR_TYPE_MX,
LDNS_RR_CLASS_IN,
LDNS_RD);
if(!p)
std::cout << "no packet is generated" << std::endl;
else{
std::clock_t current;
current = std::clock();
double latency = (current-start)*1000.0/CLOCKS_PER_SEC;
std::cout <<"Qurey sent to " << domain << ", latency is " << latency << " ms." <<std::endl;
}
ldns_rdf_deep_free(domain);
//if (!p) {
// exit(EXIT_FAILURE);
//} else {
// /* retrieve the MX records from the answer section of that
// * packet
// */
// mx = ldns_pkt_rr_list_by_type(p,
// LDNS_RR_TYPE_MX,
// LDNS_SECTION_ANSWER);
// if (!mx) {
// fprintf(stderr,
// " *** invalid answer name %s after MX query for %s\n",
// argv[1], argv[1]);
// ldns_pkt_free(p);
// ldns_resolver_deep_free(res);
// exit(EXIT_FAILURE);
// } else {
// ldns_rr_list_sort(mx);
// ldns_rr_list_print(stdout, mx);
// ldns_rr_list_deep_free(mx);
// }
//}
ldns_pkt_free(p);
ldns_resolver_deep_free(res);
return 0;
}
ldns_status
ldns_resolver_new_frm_fp_l(ldns_resolver **res, FILE *fp, int *line_nr)
{
ldns_resolver *r;
const char *keyword[LDNS_RESOLV_KEYWORDS];
char word[LDNS_MAX_LINELEN + 1];
int8_t expect;
uint8_t i;
ldns_rdf *tmp;
#ifdef HAVE_SSL
ldns_rr *tmp_rr;
#endif
ssize_t gtr;
ldns_buffer *b;
/* do this better
* expect =
* 0: keyword
* 1: default domain dname
* 2: NS aaaa or a record
*/
/* recognized keywords */
keyword[LDNS_RESOLV_NAMESERVER] = "nameserver";
keyword[LDNS_RESOLV_DEFDOMAIN] = "domain";
keyword[LDNS_RESOLV_SEARCH] = "search";
/* these two are read but not used atm TODO */
keyword[LDNS_RESOLV_SORTLIST] = "sortlist";
keyword[LDNS_RESOLV_OPTIONS] = "options";
keyword[LDNS_RESOLV_ANCHOR] = "anchor";
expect = LDNS_RESOLV_KEYWORD;
r = ldns_resolver_new();
if (!r) {
return LDNS_STATUS_MEM_ERR;
}
gtr = 1;
word[0] = 0;
while (gtr > 0) {
/* check comments */
if (word[0] == '#') {
/* read the rest of the line, should be 1 word */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
/* prepare the next string for further parsing */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
continue;
}
switch(expect) {
case LDNS_RESOLV_KEYWORD:
/* keyword */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr != 0) {
for(i = 0; i < LDNS_RESOLV_KEYWORDS; i++) {
if (strcasecmp(keyword[i], word) == 0) {
/* chosen the keyword and
* expect values carefully
*/
expect = i;
break;
}
}
/* no keyword recognized */
if (expect == LDNS_RESOLV_KEYWORD) {
/* skip line */
/*
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_KEYWORD_ERR;
*/
}
}
break;
case LDNS_RESOLV_DEFDOMAIN:
/* default domain dname */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, word);
if (!tmp) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_DNAME_ERR;
}
/* DOn't free, because we copy the pointer */
ldns_resolver_set_domain(r, tmp);
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_NAMESERVER:
/* NS aaaa or a record */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, word);
if (!tmp) {
/* try ip4 */
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, word);
}
/* could not parse it, exit */
if (!tmp) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_ERR;
}
(void)ldns_resolver_push_nameserver(r, tmp);
ldns_rdf_deep_free(tmp);
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_SEARCH:
/* search list domain dname */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
b = LDNS_MALLOC(ldns_buffer);
ldns_buffer_new_frm_data(b, word, (size_t) gtr);
gtr = ldns_bget_token(b, word, LDNS_PARSE_NORMAL, (size_t) gtr);
while (gtr > 0) {
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, word);
if (!tmp) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_DNAME_ERR;
}
ldns_resolver_push_searchlist(r, tmp);
ldns_rdf_deep_free(tmp);
gtr = ldns_bget_token(b, word, LDNS_PARSE_NORMAL, (size_t) gtr);
}
ldns_buffer_free(b);
gtr = 1;
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_SORTLIST:
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
/* sortlist not implemented atm */
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_OPTIONS:
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
/* options not implemented atm */
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_ANCHOR:
/* a file containing a DNSSEC trust anchor */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
#ifdef HAVE_SSL
tmp_rr = ldns_read_anchor_file(word);
(void) ldns_resolver_push_dnssec_anchor(r, tmp_rr);
ldns_rr_free(tmp_rr);
#endif
expect = LDNS_RESOLV_KEYWORD;
break;
}
}
if (res) {
*res = r;
return LDNS_STATUS_OK;
} else {
return LDNS_STATUS_NULL;
}
}
int
main(int argc, char *argv[])
{
ldns_resolver *res;
ldns_rdf *name;
ldns_rdf *version, *id;
ldns_pkt *p;
ldns_rr_list *addr;
ldns_rr_list *info;
ldns_status s;
ldns_rdf *pop;
size_t i;
if (argc != 2) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
} else {
/* create a rdf from the command line arg */
name = ldns_dname_new_frm_str(argv[1]);
if (!name) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
}
}
/* create rdf for what we are going to ask */
version = ldns_dname_new_frm_str("version.bind");
id = ldns_dname_new_frm_str("hostname.bind");
/* create a new resolver from /etc/resolv.conf */
s = ldns_resolver_new_frm_file(&res, NULL);
if (s != LDNS_STATUS_OK) {
ldns_rdf_deep_free(name);
exit(EXIT_FAILURE);
}
ldns_resolver_set_retry(res, 1); /* don't want to wait too long */
/* use the resolver to send it a query for the a/aaaa of name */
addr = ldns_get_rr_list_addr_by_name(res, name, LDNS_RR_CLASS_IN, LDNS_RD);
if (!addr) {
fprintf(stderr, " *** could not get an address for %s\n", argv[1]);
ldns_rdf_deep_free(name);
ldns_resolver_deep_free(res);
exit(EXIT_FAILURE);
}
/* remove current list of nameservers from resolver */
while((pop = ldns_resolver_pop_nameserver(res))) { ldns_rdf_deep_free(pop); }
/* can be multihomed */
for(i = 0; i < ldns_rr_list_rr_count(addr); i++) {
if (i > 0) {
fprintf(stdout, "\n");
}
if (ldns_resolver_push_nameserver_rr(res,
ldns_rr_list_rr(addr, i)) != LDNS_STATUS_OK) {
printf("Error adding nameserver to resolver\n");
}
ldns_rr_print(stdout, ldns_rr_list_rr(addr, i));
fprintf(stdout, "\n");
p = ldns_resolver_query(res, version, LDNS_RR_TYPE_TXT,
LDNS_RR_CLASS_CH, LDNS_RD);
if (p) {
ldns_pkt_print(stdout, p);
info = ldns_pkt_rr_list_by_type(p,
LDNS_RR_TYPE_TXT, LDNS_SECTION_ANSWER);
if (info) {
ldns_rr_list_print(stdout, info);
ldns_rr_list_deep_free(info);
} else {
printf(" *** version retrieval failed\n");
}
ldns_pkt_free(p);
} else {
printf(" *** query failed\n");
}
p = ldns_resolver_query(res, id, LDNS_RR_TYPE_TXT,
LDNS_RR_CLASS_CH, LDNS_RD);
if (p) {
info = ldns_pkt_rr_list_by_type(p,
LDNS_RR_TYPE_TXT, LDNS_SECTION_ANSWER);
if (info) {
ldns_rr_list_print(stdout, info);
ldns_rr_list_deep_free(info);
} else {
printf(" *** id retrieval failed\n");
}
ldns_pkt_free(p);
} else {
printf(" *** query failed for\n");
}
ldns_rdf_deep_free(ldns_resolver_pop_nameserver(res));
}
ldns_rdf_deep_free(name);
ldns_resolver_deep_free(res);
exit(EXIT_SUCCESS);
}
/**
* Main function of drill
* parse the arguments and prepare a query
*/
int
main(int argc, char *argv[])
{
ldns_resolver *res = NULL;
ldns_resolver *cmdline_res = NULL; /* only used to resolv @name names */
ldns_rr_list *cmdline_rr_list = NULL;
ldns_rdf *cmdline_dname = NULL;
ldns_rdf *qname, *qname_tmp;
ldns_pkt *pkt;
ldns_pkt *qpkt;
char *serv;
const char *name;
char *name2;
char *progname;
char *query_file = NULL;
char *answer_file = NULL;
ldns_buffer *query_buffer = NULL;
ldns_rdf *serv_rdf;
ldns_rr_type type;
ldns_rr_class clas;
#if 0
ldns_pkt_opcode opcode = LDNS_PACKET_QUERY;
#endif
int i, c;
int int_type;
int int_clas;
int PURPOSE;
char *tsig_name = NULL;
char *tsig_data = NULL;
char *tsig_algorithm = NULL;
size_t tsig_separator;
size_t tsig_separator2;
ldns_rr *axfr_rr;
ldns_status status;
char *type_str;
/* list of keys used in dnssec operations */
ldns_rr_list *key_list = ldns_rr_list_new();
/* what key verify the current answer */
ldns_rr_list *key_verified;
/* resolver options */
uint16_t qflags;
uint16_t qbuf;
uint16_t qport;
uint8_t qfamily;
bool qdnssec;
bool qfallback;
bool qds;
bool qusevc;
bool qrandom;
char *resolv_conf_file = NULL;
ldns_rdf *trace_start_name = NULL;
int result = 0;
#ifdef USE_WINSOCK
int r;
WSADATA wsa_data;
#endif
int_type = -1; serv = NULL; type = 0;
int_clas = -1; name = NULL; clas = 0;
qname = NULL;
progname = strdup(argv[0]);
#ifdef USE_WINSOCK
r = WSAStartup(MAKEWORD(2,2), &wsa_data);
if(r != 0) {
printf("Failed WSAStartup: %d\n", r);
result = EXIT_FAILURE;
goto exit;
}
#endif /* USE_WINSOCK */
PURPOSE = DRILL_QUERY;
qflags = LDNS_RD;
qport = LDNS_PORT;
verbosity = 2;
qdnssec = false;
qfamily = LDNS_RESOLV_INETANY;
qfallback = false;
qds = false;
qbuf = 0;
qusevc = false;
qrandom = true;
key_verified = NULL;
ldns_init_random(NULL, 0);
if (argc == 0) {
usage(stdout, progname);
result = EXIT_FAILURE;
goto exit;
}
/* string from orig drill: "i:w:I46Sk:TNp:b:DsvhVcuaq:f:xr" */
/* global first, query opt next, option with parm's last
* and sorted */ /* "46DITSVQf:i:w:q:achuvxzy:so:p:b:k:" */
while ((c = getopt(argc, argv, "46ab:c:d:Df:hi:Ik:o:p:q:Qr:sStTuvV:w:xy:z")) != -1) {
switch(c) {
/* global options */
case '4':
qfamily = LDNS_RESOLV_INET;
break;
case '6':
qfamily = LDNS_RESOLV_INET6;
break;
case 'D':
qdnssec = true;
break;
case 'I':
/* reserved for backward compatibility */
break;
case 'T':
if (PURPOSE == DRILL_CHASE) {
fprintf(stderr, "-T and -S cannot be used at the same time.\n");
exit(EXIT_FAILURE);
}
PURPOSE = DRILL_TRACE;
break;
#ifdef HAVE_SSL
case 'S':
if (PURPOSE == DRILL_TRACE) {
fprintf(stderr, "-T and -S cannot be used at the same time.\n");
exit(EXIT_FAILURE);
}
PURPOSE = DRILL_CHASE;
break;
#endif /* HAVE_SSL */
case 'V':
if (strtok(optarg, "0123456789") != NULL) {
fprintf(stderr, "-V expects an number as an argument.\n");
exit(EXIT_FAILURE);
}
verbosity = atoi(optarg);
break;
case 'Q':
verbosity = -1;
break;
case 'f':
query_file = optarg;
break;
case 'i':
answer_file = optarg;
PURPOSE = DRILL_AFROMFILE;
break;
case 'w':
answer_file = optarg;
break;
case 'q':
query_file = optarg;
PURPOSE = DRILL_QTOFILE;
break;
case 'r':
if (global_dns_root) {
fprintf(stderr, "There was already a series of root servers set\n");
exit(EXIT_FAILURE);
}
global_dns_root = read_root_hints(optarg);
if (!global_dns_root) {
fprintf(stderr, "Unable to read root hints file %s, aborting\n", optarg);
exit(EXIT_FAILURE);
}
break;
/* query options */
case 'a':
qfallback = true;
break;
case 'b':
qbuf = (uint16_t)atoi(optarg);
if (qbuf == 0) {
error("%s", "<bufsize> could not be converted");
}
break;
case 'c':
resolv_conf_file = optarg;
break;
case 't':
qusevc = true;
break;
case 'k':
status = read_key_file(optarg,
key_list, false);
if (status != LDNS_STATUS_OK) {
error("Could not parse the key file %s: %s", optarg, ldns_get_errorstr_by_id(status));
}
qdnssec = true; /* enable that too */
break;
case 'o':
/* only looks at the first hit: capital=ON, lowercase=OFF*/
if (strstr(optarg, "QR")) {
DRILL_ON(qflags, LDNS_QR);
}
if (strstr(optarg, "qr")) {
DRILL_OFF(qflags, LDNS_QR);
}
if (strstr(optarg, "AA")) {
DRILL_ON(qflags, LDNS_AA);
}
if (strstr(optarg, "aa")) {
DRILL_OFF(qflags, LDNS_AA);
}
if (strstr(optarg, "TC")) {
DRILL_ON(qflags, LDNS_TC);
}
if (strstr(optarg, "tc")) {
DRILL_OFF(qflags, LDNS_TC);
}
if (strstr(optarg, "RD")) {
DRILL_ON(qflags, LDNS_RD);
}
if (strstr(optarg, "rd")) {
DRILL_OFF(qflags, LDNS_RD);
}
if (strstr(optarg, "CD")) {
DRILL_ON(qflags, LDNS_CD);
}
if (strstr(optarg, "cd")) {
DRILL_OFF(qflags, LDNS_CD);
}
if (strstr(optarg, "RA")) {
DRILL_ON(qflags, LDNS_RA);
}
if (strstr(optarg, "ra")) {
DRILL_OFF(qflags, LDNS_RA);
}
if (strstr(optarg, "AD")) {
DRILL_ON(qflags, LDNS_AD);
}
if (strstr(optarg, "ad")) {
DRILL_OFF(qflags, LDNS_AD);
}
break;
case 'p':
qport = (uint16_t)atoi(optarg);
if (qport == 0) {
error("%s", "<port> could not be converted");
}
break;
case 's':
qds = true;
break;
case 'u':
qusevc = false;
break;
case 'v':
version(stdout, progname);
result = EXIT_SUCCESS;
goto exit;
case 'x':
PURPOSE = DRILL_REVERSE;
break;
case 'y':
#ifdef HAVE_SSL
if (strchr(optarg, ':')) {
tsig_separator = (size_t) (strchr(optarg, ':') - optarg);
if (strchr(optarg + tsig_separator + 1, ':')) {
tsig_separator2 = (size_t) (strchr(optarg + tsig_separator + 1, ':') - optarg);
tsig_algorithm = xmalloc(strlen(optarg) - tsig_separator2);
strncpy(tsig_algorithm, optarg + tsig_separator2 + 1, strlen(optarg) - tsig_separator2);
tsig_algorithm[strlen(optarg) - tsig_separator2 - 1] = '\0';
} else {
tsig_separator2 = strlen(optarg);
tsig_algorithm = xmalloc(26);
strncpy(tsig_algorithm, "hmac-md5.sig-alg.reg.int.", 25);
tsig_algorithm[25] = '\0';
}
tsig_name = xmalloc(tsig_separator + 1);
tsig_data = xmalloc(tsig_separator2 - tsig_separator);
strncpy(tsig_name, optarg, tsig_separator);
strncpy(tsig_data, optarg + tsig_separator + 1, tsig_separator2 - tsig_separator - 1);
/* strncpy does not append \0 if source is longer than n */
tsig_name[tsig_separator] = '\0';
tsig_data[ tsig_separator2 - tsig_separator - 1] = '\0';
}
#else
fprintf(stderr, "TSIG requested, but SSL is not supported\n");
result = EXIT_FAILURE;
goto exit;
#endif /* HAVE_SSL */
break;
case 'z':
qrandom = false;
break;
case 'd':
trace_start_name = ldns_dname_new_frm_str(optarg);
if (!trace_start_name) {
fprintf(stderr, "Unable to parse argument for -%c\n", c);
result = EXIT_FAILURE;
goto exit;
}
break;
case 'h':
version(stdout, progname);
usage(stdout, progname);
result = EXIT_SUCCESS;
goto exit;
break;
default:
fprintf(stderr, "Unknown argument: -%c, use -h to see usage\n", c);
result = EXIT_FAILURE;
goto exit;
}
}
argc -= optind;
argv += optind;
if ((PURPOSE == DRILL_CHASE || (PURPOSE == DRILL_TRACE && qdnssec)) &&
ldns_rr_list_rr_count(key_list) == 0) {
(void) read_key_file(LDNS_TRUST_ANCHOR_FILE, key_list, true);
}
if (ldns_rr_list_rr_count(key_list) > 0) {
printf(";; Number of trusted keys: %d\n",
(int) ldns_rr_list_rr_count(key_list));
}
/* do a secure trace when requested */
if (PURPOSE == DRILL_TRACE && qdnssec) {
#ifdef HAVE_SSL
if (ldns_rr_list_rr_count(key_list) == 0) {
warning("%s", "No trusted keys were given. Will not be able to verify authenticity!");
}
PURPOSE = DRILL_SECTRACE;
#else
fprintf(stderr, "ldns has not been compiled with OpenSSL support. Secure trace not available\n");
exit(1);
#endif /* HAVE_SSL */
}
/* parse the arguments, with multiple arguments, the last argument
* found is used */
for(i = 0; i < argc; i++) {
/* if ^@ then it's a server */
if (argv[i][0] == '@') {
if (strlen(argv[i]) == 1) {
warning("%s", "No nameserver given");
exit(EXIT_FAILURE);
}
serv = argv[i] + 1;
continue;
}
/* if has a dot, it's a name */
if (strchr(argv[i], '.')) {
name = argv[i];
continue;
}
/* if it matches a type, it's a type */
if (int_type == -1) {
type = ldns_get_rr_type_by_name(argv[i]);
if (type != 0) {
int_type = 0;
continue;
}
}
/* if it matches a class, it's a class */
if (int_clas == -1) {
clas = ldns_get_rr_class_by_name(argv[i]);
if (clas != 0) {
int_clas = 0;
continue;
}
}
/* it all fails assume it's a name */
name = argv[i];
}
/* act like dig and use for . NS */
if (!name) {
name = ".";
int_type = 0;
type = LDNS_RR_TYPE_NS;
}
/* defaults if not given */
if (int_clas == -1) {
clas = LDNS_RR_CLASS_IN;
}
if (int_type == -1) {
if (PURPOSE != DRILL_REVERSE) {
type = LDNS_RR_TYPE_A;
} else {
type = LDNS_RR_TYPE_PTR;
}
}
/* set the nameserver to use */
if (!serv) {
/* no server given make a resolver from /etc/resolv.conf */
status = ldns_resolver_new_frm_file(&res, resolv_conf_file);
if (status != LDNS_STATUS_OK) {
warning("Could not create a resolver structure: %s (%s)\n"
"Try drill @localhost if you have a resolver running on your machine.",
ldns_get_errorstr_by_id(status), resolv_conf_file);
result = EXIT_FAILURE;
goto exit;
}
} else {
res = ldns_resolver_new();
if (!res || strlen(serv) <= 0) {
warning("Could not create a resolver structure");
result = EXIT_FAILURE;
goto exit;
}
/* add the nameserver */
serv_rdf = ldns_rdf_new_addr_frm_str(serv);
if (!serv_rdf) {
/* try to resolv the name if possible */
status = ldns_resolver_new_frm_file(&cmdline_res, resolv_conf_file);
if (status != LDNS_STATUS_OK) {
error("%s", "@server ip could not be converted");
}
ldns_resolver_set_dnssec(cmdline_res, qdnssec);
ldns_resolver_set_ip6(cmdline_res, qfamily);
ldns_resolver_set_fallback(cmdline_res, qfallback);
ldns_resolver_set_usevc(cmdline_res, qusevc);
cmdline_dname = ldns_dname_new_frm_str(serv);
cmdline_rr_list = ldns_get_rr_list_addr_by_name(
cmdline_res,
cmdline_dname,
LDNS_RR_CLASS_IN,
qflags);
ldns_rdf_deep_free(cmdline_dname);
if (!cmdline_rr_list) {
/* This error msg is not always accurate */
error("%s `%s\'", "could not find any address for the name:", serv);
} else {
if (ldns_resolver_push_nameserver_rr_list(
res,
cmdline_rr_list
) != LDNS_STATUS_OK) {
error("%s", "pushing nameserver");
}
}
} else {
if (ldns_resolver_push_nameserver(res, serv_rdf) != LDNS_STATUS_OK) {
error("%s", "pushing nameserver");
} else {
ldns_rdf_deep_free(serv_rdf);
}
}
}
/* set the resolver options */
ldns_resolver_set_port(res, qport);
if (verbosity >= 5) {
ldns_resolver_set_debug(res, true);
} else {
ldns_resolver_set_debug(res, false);
}
ldns_resolver_set_dnssec(res, qdnssec);
/* ldns_resolver_set_dnssec_cd(res, qdnssec);*/
ldns_resolver_set_ip6(res, qfamily);
ldns_resolver_set_fallback(res, qfallback);
ldns_resolver_set_usevc(res, qusevc);
ldns_resolver_set_random(res, qrandom);
if (qbuf != 0) {
ldns_resolver_set_edns_udp_size(res, qbuf);
}
if (!name &&
PURPOSE != DRILL_AFROMFILE &&
!query_file
) {
usage(stdout, progname);
result = EXIT_FAILURE;
goto exit;
}
if (tsig_name && tsig_data) {
ldns_resolver_set_tsig_keyname(res, tsig_name);
ldns_resolver_set_tsig_keydata(res, tsig_data);
ldns_resolver_set_tsig_algorithm(res, tsig_algorithm);
}
/* main switching part of drill */
switch(PURPOSE) {
case DRILL_TRACE:
/* do a trace from the root down */
if (!global_dns_root) {
init_root();
}
qname = ldns_dname_new_frm_str(name);
if (!qname) {
error("%s", "parsing query name");
}
/* don't care about return packet */
(void)do_trace(res, qname, type, clas);
clear_root();
break;
case DRILL_SECTRACE:
/* do a secure trace from the root down */
if (!global_dns_root) {
init_root();
}
qname = ldns_dname_new_frm_str(name);
if (!qname) {
error("%s", "making qname");
}
/* don't care about return packet */
#ifdef HAVE_SSL
result = do_secure_trace(res, qname, type, clas, key_list, trace_start_name);
#endif /* HAVE_SSL */
clear_root();
break;
case DRILL_CHASE:
qname = ldns_dname_new_frm_str(name);
if (!qname) {
error("%s", "making qname");
}
ldns_resolver_set_dnssec(res, true);
ldns_resolver_set_dnssec_cd(res, true);
/* set dnssec implies udp_size of 4096 */
ldns_resolver_set_edns_udp_size(res, 4096);
pkt = ldns_resolver_query(res, qname, type, clas, qflags);
if (!pkt) {
error("%s", "error pkt sending");
result = EXIT_FAILURE;
} else {
if (verbosity >= 3) {
ldns_pkt_print(stdout, pkt);
}
if (!ldns_pkt_answer(pkt)) {
mesg("No answer in packet");
} else {
#ifdef HAVE_SSL
ldns_resolver_set_dnssec_anchors(res, ldns_rr_list_clone(key_list));
result = do_chase(res, qname, type,
clas, key_list,
pkt, qflags, NULL,
verbosity);
if (result == LDNS_STATUS_OK) {
if (verbosity != -1) {
mesg("Chase successful");
}
result = 0;
} else {
if (verbosity != -1) {
mesg("Chase failed.");
}
}
#endif /* HAVE_SSL */
}
ldns_pkt_free(pkt);
}
break;
case DRILL_AFROMFILE:
pkt = read_hex_pkt(answer_file);
if (pkt) {
if (verbosity != -1) {
ldns_pkt_print(stdout, pkt);
}
ldns_pkt_free(pkt);
}
break;
case DRILL_QTOFILE:
qname = ldns_dname_new_frm_str(name);
if (!qname) {
error("%s", "making qname");
}
status = ldns_resolver_prepare_query_pkt(&qpkt, res, qname, type, clas, qflags);
if(status != LDNS_STATUS_OK) {
error("%s", "making query: %s",
ldns_get_errorstr_by_id(status));
}
dump_hex(qpkt, query_file);
ldns_pkt_free(qpkt);
break;
case DRILL_NSEC:
break;
case DRILL_REVERSE:
/* ipv4 or ipv6 addr? */
if (strchr(name, ':')) {
if (strchr(name, '.')) {
error("Syntax error: both '.' and ':' seen in address\n");
}
name2 = malloc(IP6_ARPA_MAX_LEN + 20);
c = 0;
for (i=0; i<(int)strlen(name); i++) {
if (i >= IP6_ARPA_MAX_LEN) {
error("%s", "reverse argument to long");
}
if (name[i] == ':') {
if (i < (int) strlen(name) && name[i + 1] == ':') {
error("%s", ":: not supported (yet)");
} else {
if (i + 2 == (int) strlen(name) || name[i + 2] == ':') {
name2[c++] = '0';
name2[c++] = '.';
name2[c++] = '0';
name2[c++] = '.';
name2[c++] = '0';
name2[c++] = '.';
} else if (i + 3 == (int) strlen(name) || name[i + 3] == ':') {
name2[c++] = '0';
name2[c++] = '.';
name2[c++] = '0';
name2[c++] = '.';
} else if (i + 4 == (int) strlen(name) || name[i + 4] == ':') {
name2[c++] = '0';
name2[c++] = '.';
}
}
} else {
name2[c++] = name[i];
name2[c++] = '.';
}
}
name2[c++] = '\0';
qname = ldns_dname_new_frm_str(name2);
qname_tmp = ldns_dname_reverse(qname);
ldns_rdf_deep_free(qname);
qname = qname_tmp;
qname_tmp = ldns_dname_new_frm_str("ip6.arpa.");
status = ldns_dname_cat(qname, qname_tmp);
if (status != LDNS_STATUS_OK) {
error("%s", "could not create reverse address for ip6: %s\n", ldns_get_errorstr_by_id(status));
}
ldns_rdf_deep_free(qname_tmp);
free(name2);
} else {
qname = ldns_dname_new_frm_str(name);
qname_tmp = ldns_dname_reverse(qname);
ldns_rdf_deep_free(qname);
qname = qname_tmp;
qname_tmp = ldns_dname_new_frm_str("in-addr.arpa.");
status = ldns_dname_cat(qname, qname_tmp);
if (status != LDNS_STATUS_OK) {
error("%s", "could not create reverse address for ip4: %s\n", ldns_get_errorstr_by_id(status));
}
ldns_rdf_deep_free(qname_tmp);
}
if (!qname) {
error("%s", "-x implies an ip address");
}
/* create a packet and set the RD flag on it */
pkt = ldns_resolver_query(res, qname, type, clas, qflags);
if (!pkt) {
error("%s", "pkt sending");
result = EXIT_FAILURE;
} else {
if (verbosity != -1) {
ldns_pkt_print(stdout, pkt);
}
ldns_pkt_free(pkt);
}
break;
case DRILL_QUERY:
default:
if (query_file) {
/* this old way, the query packet needed
to be parseable, but we want to be able
to send mangled packets, so we need
to do it directly */
#if 0
qpkt = read_hex_pkt(query_file);
if (qpkt) {
status = ldns_resolver_send_pkt(&pkt, res, qpkt);
if (status != LDNS_STATUS_OK) {
printf("Error: %s\n", ldns_get_errorstr_by_id(status));
exit(1);
}
} else {
/* qpkt was bogus, reset pkt */
pkt = NULL;
}
#endif
query_buffer = read_hex_buffer(query_file);
if (query_buffer) {
status = ldns_send_buffer(&pkt, res, query_buffer, NULL);
ldns_buffer_free(query_buffer);
if (status != LDNS_STATUS_OK) {
printf("Error: %s\n", ldns_get_errorstr_by_id(status));
exit(1);
}
} else {
printf("NO BUFFER\n");
pkt = NULL;
}
} else {
qname = ldns_dname_new_frm_str(name);
if (!qname) {
error("%s", "error in making qname");
}
if (type == LDNS_RR_TYPE_AXFR) {
status = ldns_axfr_start(res, qname, clas);
if(status != LDNS_STATUS_OK) {
error("Error starting axfr: %s",
ldns_get_errorstr_by_id(status));
}
axfr_rr = ldns_axfr_next(res);
if(!axfr_rr) {
fprintf(stderr, "AXFR failed.\n");
ldns_pkt_print(stdout,
ldns_axfr_last_pkt(res));
goto exit;
}
while (axfr_rr) {
if (verbosity != -1) {
ldns_rr_print(stdout, axfr_rr);
}
ldns_rr_free(axfr_rr);
axfr_rr = ldns_axfr_next(res);
}
goto exit;
} else {
/* create a packet and set the RD flag on it */
pkt = ldns_resolver_query(res, qname, type, clas, qflags);
}
}
if (!pkt) {
mesg("No packet received");
result = EXIT_FAILURE;
} else {
if (verbosity != -1) {
ldns_pkt_print(stdout, pkt);
if (ldns_pkt_tc(pkt)) {
fprintf(stdout,
"\n;; WARNING: The answer packet was truncated; you might want to\n");
fprintf(stdout,
";; query again with TCP (-t argument), or EDNS0 (-b for buffer size)\n");
}
}
if (qds) {
if (verbosity != -1) {
print_ds_of_keys(pkt);
printf("\n");
}
}
if (ldns_rr_list_rr_count(key_list) > 0) {
/* -k's were given on the cmd line */
ldns_rr_list *rrset_verified;
uint16_t key_count;
rrset_verified = ldns_pkt_rr_list_by_name_and_type(
pkt, qname, type,
LDNS_SECTION_ANY_NOQUESTION);
if (type == LDNS_RR_TYPE_ANY) {
/* don't verify this */
break;
}
if (verbosity != -1) {
printf("; ");
ldns_rr_list_print(stdout, rrset_verified);
}
/* verify */
#ifdef HAVE_SSL
key_verified = ldns_rr_list_new();
result = ldns_pkt_verify(pkt, type, qname, key_list, NULL, key_verified);
if (result == LDNS_STATUS_ERR) {
/* is the existence denied then? */
result = ldns_verify_denial(pkt, qname, type, NULL, NULL);
if (result == LDNS_STATUS_OK) {
if (verbosity != -1) {
printf("Existence denied for ");
ldns_rdf_print(stdout, qname);
type_str = ldns_rr_type2str(type);
printf("\t%s\n", type_str);
LDNS_FREE(type_str);
}
} else {
if (verbosity != -1) {
printf("Bad data; RR for name and "
"type not found or failed to "
"verify, and denial of "
"existence failed.\n");
}
}
} else if (result == LDNS_STATUS_OK) {
for(key_count = 0; key_count < ldns_rr_list_rr_count(key_verified);
key_count++) {
if (verbosity != -1) {
printf("; VALIDATED by id = %u, owner = ",
(unsigned int)ldns_calc_keytag(
ldns_rr_list_rr(key_verified, key_count)));
ldns_rdf_print(stdout, ldns_rr_owner(
ldns_rr_list_rr(key_list, key_count)));
printf("\n");
}
}
} else {
for(key_count = 0; key_count < ldns_rr_list_rr_count(key_list);
key_count++) {
if (verbosity != -1) {
printf("; %s for id = %u, owner = ",
ldns_get_errorstr_by_id(result),
(unsigned int)ldns_calc_keytag(
ldns_rr_list_rr(key_list, key_count)));
ldns_rdf_print(stdout, ldns_rr_owner(
ldns_rr_list_rr(key_list,
key_count)));
printf("\n");
}
}
}
ldns_rr_list_free(key_verified);
#else
(void) key_count;
#endif /* HAVE_SSL */
}
if (answer_file) {
dump_hex(pkt, answer_file);
}
ldns_pkt_free(pkt);
}
break;
}
exit:
ldns_rdf_deep_free(qname);
ldns_resolver_deep_free(res);
ldns_resolver_deep_free(cmdline_res);
ldns_rr_list_deep_free(key_list);
ldns_rr_list_deep_free(cmdline_rr_list);
ldns_rdf_deep_free(trace_start_name);
xfree(progname);
xfree(tsig_name);
xfree(tsig_data);
xfree(tsig_algorithm);
#ifdef HAVE_SSL
ERR_remove_state(0);
CRYPTO_cleanup_all_ex_data();
ERR_free_strings();
EVP_cleanup();
#endif
#ifdef USE_WINSOCK
WSACleanup();
#endif
return result;
}
ldns_status
ldns_resolver_new_frm_fp_l(ldns_resolver **res, FILE *fp, int *line_nr)
{
ldns_resolver *r;
const char *keyword[LDNS_RESOLV_KEYWORDS];
char word[LDNS_MAX_LINELEN + 1];
int8_t expect;
uint8_t i;
ldns_rdf *tmp;
#ifdef HAVE_SSL
ldns_rr *tmp_rr;
#endif
ssize_t gtr, bgtr;
ldns_buffer *b;
int lnr = 0, oldline;
if(!line_nr) line_nr = &lnr;
/* do this better
* expect =
* 0: keyword
* 1: default domain dname
* 2: NS aaaa or a record
*/
/* recognized keywords */
keyword[LDNS_RESOLV_NAMESERVER] = "nameserver";
keyword[LDNS_RESOLV_DEFDOMAIN] = "domain";
keyword[LDNS_RESOLV_SEARCH] = "search";
/* these two are read but not used atm TODO */
keyword[LDNS_RESOLV_SORTLIST] = "sortlist";
keyword[LDNS_RESOLV_OPTIONS] = "options";
keyword[LDNS_RESOLV_ANCHOR] = "anchor";
expect = LDNS_RESOLV_KEYWORD;
r = ldns_resolver_new();
if (!r) {
return LDNS_STATUS_MEM_ERR;
}
gtr = 1;
word[0] = 0;
oldline = *line_nr;
expect = LDNS_RESOLV_KEYWORD;
while (gtr > 0) {
/* check comments */
if (word[0] == '#') {
word[0]='x';
if(oldline == *line_nr) {
/* skip until end of line */
int c;
do {
c = fgetc(fp);
} while(c != EOF && c != '\n');
if(c=='\n' && line_nr) (*line_nr)++;
}
/* and read next to prepare for further parsing */
oldline = *line_nr;
continue;
}
oldline = *line_nr;
switch(expect) {
case LDNS_RESOLV_KEYWORD:
/* keyword */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr != 0) {
if(word[0] == '#') continue;
for(i = 0; i < LDNS_RESOLV_KEYWORDS; i++) {
if (strcasecmp(keyword[i], word) == 0) {
/* chosen the keyword and
* expect values carefully
*/
expect = i;
break;
}
}
/* no keyword recognized */
if (expect == LDNS_RESOLV_KEYWORD) {
/* skip line */
/*
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_KEYWORD_ERR;
*/
}
}
break;
case LDNS_RESOLV_DEFDOMAIN:
/* default domain dname */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
if(word[0] == '#') {
expect = LDNS_RESOLV_KEYWORD;
continue;
}
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, word);
if (!tmp) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_DNAME_ERR;
}
/* DOn't free, because we copy the pointer */
ldns_resolver_set_domain(r, tmp);
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_NAMESERVER:
/* NS aaaa or a record */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
if(word[0] == '#') {
expect = LDNS_RESOLV_KEYWORD;
continue;
}
if(strchr(word, '%')) {
/* snip off interface labels,
* fe80::222:19ff:fe31:4222%eth0 */
strchr(word, '%')[0]=0;
}
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, word);
if (!tmp) {
/* try ip4 */
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, word);
}
/* could not parse it, exit */
if (!tmp) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_ERR;
}
(void)ldns_resolver_push_nameserver(r, tmp);
ldns_rdf_deep_free(tmp);
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_SEARCH:
/* search list domain dname */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
b = LDNS_MALLOC(ldns_buffer);
if(!b) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_MEM_ERR;
}
ldns_buffer_new_frm_data(b, word, (size_t) gtr);
if(ldns_buffer_status(b) != LDNS_STATUS_OK) {
LDNS_FREE(b);
ldns_resolver_deep_free(r);
return LDNS_STATUS_MEM_ERR;
}
bgtr = ldns_bget_token(b, word, LDNS_PARSE_NORMAL, (size_t) gtr + 1);
while (bgtr > 0) {
gtr -= bgtr;
if(word[0] == '#') {
expect = LDNS_RESOLV_KEYWORD;
ldns_buffer_free(b);
continue;
}
tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, word);
if (!tmp) {
ldns_resolver_deep_free(r);
ldns_buffer_free(b);
return LDNS_STATUS_SYNTAX_DNAME_ERR;
}
ldns_resolver_push_searchlist(r, tmp);
ldns_rdf_deep_free(tmp);
bgtr = ldns_bget_token(b, word, LDNS_PARSE_NORMAL,
(size_t) gtr + 1);
}
ldns_buffer_free(b);
gtr = 1;
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_SORTLIST:
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
/* sortlist not implemented atm */
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_OPTIONS:
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_SKIP_SPACE, 0, line_nr);
/* options not implemented atm */
expect = LDNS_RESOLV_KEYWORD;
break;
case LDNS_RESOLV_ANCHOR:
/* a file containing a DNSSEC trust anchor */
gtr = ldns_fget_token_l(fp, word, LDNS_PARSE_NORMAL, 0, line_nr);
if (gtr == 0) {
ldns_resolver_deep_free(r);
return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
}
if(word[0] == '#') {
expect = LDNS_RESOLV_KEYWORD;
continue;
}
#ifdef HAVE_SSL
tmp_rr = ldns_read_anchor_file(word);
(void) ldns_resolver_push_dnssec_anchor(r, tmp_rr);
ldns_rr_free(tmp_rr);
#endif
expect = LDNS_RESOLV_KEYWORD;
break;
}
}
/* finally, add the root domain to the search list */
ldns_resolver_push_searchlist(r, ldns_dname_new_frm_str("."));
if (res) {
*res = r;
return LDNS_STATUS_OK;
} else {
ldns_resolver_deep_free(r);
return LDNS_STATUS_NULL;
}
}
int
main(int argc, char *argv[])
{
ldns_resolver *res;
ldns_rdf *ns;
ldns_rdf *domain;
ldns_rr_list *l = NULL;
ldns_rr_list *dns_root = NULL;
const char *root_file = "/etc/named.root";
ldns_status status;
int i;
char *domain_str;
char *outputfile_str;
ldns_buffer *outputfile_buffer;
FILE *outputfile;
ldns_rr *k;
bool insecure = false;
ldns_pkt *pkt;
domain = NULL;
res = NULL;
if (argc < 2) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
} else {
for (i = 1; i < argc; i++) {
if (strncmp("-4", argv[i], 3) == 0) {
if (address_family != 0) {
fprintf(stderr, "Options -4 and -6 cannot be specified at the same time\n");
exit(EXIT_FAILURE);
}
address_family = 1;
} else if (strncmp("-6", argv[i], 3) == 0) {
if (address_family != 0) {
fprintf(stderr, "Options -4 and -6 cannot be specified at the same time\n");
exit(EXIT_FAILURE);
}
address_family = 2;
} else if (strncmp("-h", argv[i], 3) == 0) {
usage(stdout, argv[0]);
exit(EXIT_SUCCESS);
} else if (strncmp("-i", argv[i], 2) == 0) {
insecure = true;
} else if (strncmp("-r", argv[i], 2) == 0) {
if (strlen(argv[i]) > 2) {
root_file = argv[i]+2;
} else if (i+1 >= argc) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
} else {
root_file = argv[i+1];
i++;
}
} else if (strncmp("-s", argv[i], 3) == 0) {
store_in_file = true;
} else if (strncmp("-v", argv[i], 2) == 0) {
if (strlen(argv[i]) > 2) {
verbosity = atoi(argv[i]+2);
} else if (i+1 > argc) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
} else {
verbosity = atoi(argv[i+1]);
i++;
}
} else {
/* create a rdf from the command line arg */
if (domain) {
fprintf(stdout, "You can only specify one domain at a time\n");
exit(EXIT_FAILURE);
}
domain = ldns_dname_new_frm_str(argv[i]);
}
}
if (!domain) {
usage(stdout, argv[0]);
exit(EXIT_FAILURE);
}
}
dns_root = read_root_hints(root_file);
if (!dns_root) {
fprintf(stderr, "cannot read the root hints file\n");
exit(EXIT_FAILURE);
}
/* create a new resolver from /etc/resolv.conf */
status = ldns_resolver_new_frm_file(&res, NULL);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Warning: Unable to create stub resolver from /etc/resolv.conf:\n");
fprintf(stderr, "%s\n", ldns_get_errorstr_by_id(status));
fprintf(stderr, "defaulting to nameserver at 127.0.0.1 for separate nameserver name lookups\n");
res = ldns_resolver_new();
ns = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, "127.0.0.1");
status = ldns_resolver_push_nameserver(res, ns);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Unable to create stub resolver: %s\n", ldns_get_errorstr_by_id(status));
exit(EXIT_FAILURE);
}
ldns_rdf_deep_free(ns);
}
ldns_resolver_set_ip6(res, address_family);
if (insecure) {
pkt = ldns_resolver_query(res, domain, LDNS_RR_TYPE_DNSKEY, LDNS_RR_CLASS_IN, LDNS_RD);
if (pkt) {
l = ldns_pkt_rr_list_by_type(pkt, LDNS_RR_TYPE_DNSKEY, LDNS_SECTION_ANY_NOQUESTION);
}
} else {
l = retrieve_dnskeys(res, domain, LDNS_RR_TYPE_DNSKEY, LDNS_RR_CLASS_IN, dns_root);
}
/* separator for result data and verbosity data */
if (verbosity > 0) {
fprintf(stdout, "; ---------------------------\n");
fprintf(stdout, "; Got the following keys:\n");
}
if (l) {
if (store_in_file) {
/* create filename:
* K<domain>.+<alg>.+<id>.key
*/
for (i = 0; (size_t) i < ldns_rr_list_rr_count(l); i++) {
k = ldns_rr_list_rr(l, (size_t) i);
outputfile_buffer = ldns_buffer_new(300);
domain_str = ldns_rdf2str(ldns_rr_owner(k));
ldns_buffer_printf(outputfile_buffer, "K%s+%03u+%05u.key", domain_str, ldns_rdf2native_int8(ldns_rr_rdf(k, 2)),
(unsigned int) ldns_calc_keytag(k));
outputfile_str = ldns_buffer_export(outputfile_buffer);
if (verbosity >= 1) {
fprintf(stdout, "Writing key to file %s\n", outputfile_str);
}
outputfile = fopen(outputfile_str, "w");
if (!outputfile) {
fprintf(stderr, "Error writing key to file %s: %s\n", outputfile_str, strerror(errno));
} else {
ldns_rr_print(outputfile, k);
fclose(outputfile);
}
LDNS_FREE(domain_str);
LDNS_FREE(outputfile_str);
LDNS_FREE(outputfile_buffer);
}
} else {
ldns_rr_list_print(stdout, l);
}
} else {
fprintf(stderr, "no answer packet received, stub resolver config:\n");
ldns_resolver_print(stderr, res);
}
printf("\n");
ldns_rdf_deep_free(domain);
ldns_resolver_deep_free(res);
ldns_rr_list_deep_free(l);
ldns_rr_list_deep_free(dns_root);
return EXIT_SUCCESS;
}
static ldns_rr_list *
retrieve_dnskeys(ldns_resolver *local_res, ldns_rdf *name, ldns_rr_type t,
ldns_rr_class c, ldns_rr_list *dns_root)
{
ldns_resolver *res;
ldns_pkt *p;
ldns_rr_list *new_nss_a;
ldns_rr_list *new_nss_aaaa;
ldns_rr_list *final_answer;
ldns_rr_list *new_nss;
ldns_rr_list *ns_addr;
ldns_rr_list *ns_addr2;
uint16_t loop_count;
ldns_rdf *pop;
ldns_status status;
size_t i;
size_t nss_i;
ldns_rr_list *answer_list = NULL;
ldns_rr_list *authority_list = NULL;
size_t last_nameserver_count;
ldns_rdf **last_nameservers;
loop_count = 0;
new_nss_a = NULL;
new_nss_aaaa = NULL;
new_nss = NULL;
ns_addr = NULL;
ns_addr2 = NULL;
final_answer = NULL;
p = ldns_pkt_new();
res = ldns_resolver_new();
if (!p || !res) {
fprintf(stderr, "Memory allocation failed");
return NULL;
}
if (verbosity >= 2) {
printf("Finding dnskey data for zone: ");
ldns_rdf_print(stdout, name);
printf("\n\n");
}
/* transfer some properties of local_res to res,
* because they were given on the commandline */
ldns_resolver_set_ip6(res,
ldns_resolver_ip6(local_res));
ldns_resolver_set_port(res,
ldns_resolver_port(local_res));
ldns_resolver_set_debug(res,
ldns_resolver_debug(local_res));
ldns_resolver_set_dnssec(res,
ldns_resolver_dnssec(local_res));
ldns_resolver_set_fail(res,
ldns_resolver_fail(local_res));
ldns_resolver_set_usevc(res,
ldns_resolver_usevc(local_res));
ldns_resolver_set_random(res,
ldns_resolver_random(local_res));
ldns_resolver_set_recursive(res, false);
/* setup the root nameserver in the new resolver */
status = ldns_resolver_push_nameserver_rr_list(res, dns_root);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error setting root nameservers in resolver: %s\n", ldns_get_errorstr_by_id(status));
return NULL;
}
ldns_pkt_free(p);
status = ldns_resolver_send(&p, res, name, t, c, 0);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error querying root servers: %s\n", ldns_get_errorstr_by_id(status));
return NULL;
}
if (ldns_pkt_get_rcode(p) != LDNS_RCODE_NOERROR) {
printf("Error in packet:\n");
ldns_pkt_print(stdout, p);
return NULL;
}
if (verbosity >= 4) {
ldns_pkt_print(stdout, p);
printf("\n\n");
}
/* from now on, use TCP */
ldns_resolver_set_usevc(res, true);
while(status == LDNS_STATUS_OK &&
ldns_pkt_reply_type(p) == LDNS_PACKET_REFERRAL) {
if (verbosity >= 3) {
printf("This is a delegation!\n\n");
}
if (address_family == 0 || address_family == 1) {
new_nss_a = ldns_pkt_rr_list_by_type(p,
LDNS_RR_TYPE_A, LDNS_SECTION_ADDITIONAL);
} else {
new_nss_a = ldns_rr_list_new();
}
if (address_family == 0 || address_family == 2) {
new_nss_aaaa = ldns_pkt_rr_list_by_type(p,
LDNS_RR_TYPE_AAAA, LDNS_SECTION_ADDITIONAL);
} else {
new_nss_aaaa = ldns_rr_list_new();
}
new_nss = ldns_pkt_rr_list_by_type(p,
LDNS_RR_TYPE_NS, LDNS_SECTION_AUTHORITY);
/* remove the old nameserver from the resolver */
while((pop = ldns_resolver_pop_nameserver(res))) { ldns_rdf_deep_free(pop); }
/* also check for new_nss emptyness */
if (!new_nss_aaaa && !new_nss_a) {
/*
* no nameserver found!!!
* try to resolve the names we do got
*/
if (verbosity >= 3) {
printf("Did not get address record for nameserver, doing seperate query.\n");
}
ns_addr = ldns_rr_list_new();
for(i = 0; (size_t) i < ldns_rr_list_rr_count(new_nss); i++) {
/* get the name of the nameserver */
pop = ldns_rr_rdf(ldns_rr_list_rr(new_nss, i), 0);
if (!pop) {
break;
}
/* retrieve it's addresses */
ns_addr2 = ldns_get_rr_list_addr_by_name(local_res, pop, c, 0);
if (!ldns_rr_list_cat(ns_addr, ns_addr2)) {
fprintf(stderr, "Internal error adding nameserver address.\n");
exit(EXIT_FAILURE);
}
ldns_rr_list_free(ns_addr2);
}
if (ns_addr) {
if (ldns_resolver_push_nameserver_rr_list(res, ns_addr) !=
LDNS_STATUS_OK) {
fprintf(stderr, "Error adding new nameservers");
ldns_pkt_free(p);
return NULL;
}
ldns_rr_list_deep_free(ns_addr);
} else {
ldns_rr_list_print(stdout, ns_addr);
fprintf(stderr, "Could not find the nameserver ip addr; abort");
ldns_pkt_free(p);
return NULL;
}
}
/* normally, the first working ns is used, but we need all now, so do it one by one
* if the answer is null, take it from the next resolver
* if the answer is not, compare it to that of the next resolver
* error if different, continue if the same
* if answer list null and no resolvers left die.
*/
ldns_rr_list_deep_free(answer_list);
ldns_rr_list_deep_free(authority_list);
answer_list = NULL;
authority_list = NULL;
for (nss_i = 0; nss_i < ldns_rr_list_rr_count(new_nss_aaaa); nss_i++) {
while((pop = ldns_resolver_pop_nameserver(res))) { ldns_rdf_deep_free(pop); }
status = ldns_resolver_push_nameserver(res, ldns_rr_rdf(ldns_rr_list_rr(new_nss_aaaa, nss_i), 0));
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error adding nameserver to resolver: %s\n", ldns_get_errorstr_by_id(status));
}
if (verbosity >= 1) {
fprintf(stdout, "Querying nameserver: ");
ldns_rdf_print(stdout, ldns_rr_owner(ldns_rr_list_rr(new_nss_aaaa, nss_i)));
fprintf(stdout, " (");
ldns_rdf_print(stdout, ldns_rr_rdf(ldns_rr_list_rr(new_nss_aaaa, nss_i), 0));
fprintf(stdout, ")\n");
}
status = ldns_resolver_push_nameserver(res, ldns_rr_rdf(ldns_rr_list_rr(new_nss_aaaa, nss_i), 0));
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error adding nameserver to resolver: %s\n", ldns_get_errorstr_by_id(status));
}
ldns_pkt_free(p);
status = ldns_resolver_send(&p, res, name, t, c, 0);
if (status == LDNS_STATUS_OK && p) {
if (ldns_pkt_get_rcode(p) != LDNS_RCODE_NOERROR) {
printf("Error in packet:\n");
ldns_pkt_print(stdout, p);
return NULL;
}
if (verbosity >= 4) {
ldns_pkt_print(stdout, p);
printf("\n\n");
}
if (answer_list) {
if (verbosity >= 2) {
printf("Comparing answer list of answer to previous\n\n");
}
ldns_rr_list_sort(ldns_pkt_answer(p));
ldns_rr_list_sort(answer_list);
if (ldns_rr_list_compare(answer_list, ldns_pkt_answer(p)) != 0) {
fprintf(stderr, "ERROR: different answer answer from nameserver\n");
fprintf(stderr, "\nI had (from previous servers):\n");
ldns_rr_list_print(stderr, answer_list);
fprintf(stderr, "\nI received (from nameserver at ");
ldns_rdf_print(stderr, ldns_resolver_nameservers(res)[0]);
fprintf(stderr, "):\n");
ldns_rr_list_print(stderr, ldns_pkt_answer(p));
exit(EXIT_FAILURE);
}
} else {
answer_list = ldns_rr_list_clone(ldns_pkt_answer(p));
ldns_rr_list_sort(answer_list);
if (verbosity >= 2) {
printf("First answer list for this set, nothing to compare with\n\n");
}
}
if (authority_list) {
if (verbosity >= 2) {
printf("Comparing authority list of answer to previous\n\n");
}
ldns_rr_list_sort(ldns_pkt_authority(p));
ldns_rr_list_sort(authority_list);
if (ldns_rr_list_compare(authority_list, ldns_pkt_authority(p)) != 0) {
fprintf(stderr, "ERROR: different authority answer from nameserver\n");
fprintf(stderr, "\nI had (from previous servers):\n");
ldns_rr_list_print(stderr, authority_list);
fprintf(stderr, "\nI received (from nameserver at ");
ldns_rdf_print(stderr, ldns_resolver_nameservers(res)[0]);
fprintf(stderr, "):\n");
ldns_rr_list_print(stderr, ldns_pkt_authority(p));
exit(EXIT_FAILURE);
}
} else {
authority_list = ldns_rr_list_clone(ldns_pkt_authority(p));
ldns_rr_list_sort(authority_list);
if (verbosity >= 2) {
printf("First authority list for this set, nothing to compare with\n\n");
}
if (verbosity >= 3) {
printf("NS RRset:\n");
ldns_rr_list_print(stdout, authority_list);
printf("\n");
}
}
}
}
ldns_rr_list_deep_free(answer_list);
ldns_rr_list_deep_free(authority_list);
answer_list = NULL;
authority_list = NULL;
for (nss_i = 0; nss_i < ldns_rr_list_rr_count(new_nss_a); nss_i++) {
while((pop = ldns_resolver_pop_nameserver(res))) {ldns_rdf_deep_free(pop); }
if (verbosity >= 1) {
fprintf(stdout, "Querying nameserver: ");
ldns_rdf_print(stdout, ldns_rr_owner(ldns_rr_list_rr(new_nss_a, nss_i)));
fprintf(stdout, " (");
ldns_rdf_print(stdout, ldns_rr_rdf(ldns_rr_list_rr(new_nss_a, nss_i), 0));
fprintf(stdout, ")\n");
}
status = ldns_resolver_push_nameserver(res, ldns_rr_rdf(ldns_rr_list_rr(new_nss_a, nss_i), 0));
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error adding nameserver to resolver: %s\n", ldns_get_errorstr_by_id(status));
}
ldns_pkt_free(p);
status = ldns_resolver_send(&p, res, name, t, c, 0);
if (status == LDNS_STATUS_OK) {
if (ldns_pkt_get_rcode(p) != LDNS_RCODE_NOERROR) {
printf("Error in packet:\n");
ldns_pkt_print(stdout, p);
return NULL;
}
if (verbosity >= 4) {
ldns_pkt_print(stdout, p);
printf("\n\n");
}
if (answer_list) {
if (verbosity >= 2) {
printf("Comparing answer list of answer to previous\n\n");
}
ldns_rr_list_sort(ldns_pkt_answer(p));
ldns_rr_list_sort(answer_list);
if (ldns_rr_list_compare(answer_list, ldns_pkt_answer(p)) != 0) {
fprintf(stderr, "ERROR: different answer answer from nameserver\n");
fprintf(stderr, "\nI had (from previous servers):\n");
ldns_rr_list_print(stderr, answer_list);
fprintf(stderr, "\nI received (from nameserver at ");
ldns_rdf_print(stderr, ldns_resolver_nameservers(res)[0]);
fprintf(stderr, "):\n");
ldns_rr_list_print(stderr, ldns_pkt_answer(p));
exit(EXIT_FAILURE);
}
} else {
if (verbosity >= 2) {
printf("First answer list for this set, nothing to compare with\n\n");
}
answer_list = ldns_rr_list_clone(ldns_pkt_answer(p));
ldns_rr_list_sort(answer_list);
}
if (authority_list) {
if (verbosity >= 2) {
printf("Comparing authority list of answer to previous\n\n");
}
ldns_rr_list_sort(ldns_pkt_authority(p));
ldns_rr_list_sort(authority_list);
if (ldns_rr_list_compare(authority_list, ldns_pkt_authority(p)) != 0) {
fprintf(stderr, "ERROR: different authority answer from nameserver\n");
fprintf(stderr, "\nI had (from previous servers):\n");
ldns_rr_list_print(stderr, authority_list);
fprintf(stderr, "\nI received (from nameserver at ");
ldns_rdf_print(stderr, ldns_resolver_nameservers(res)[0]);
fprintf(stderr, "):\n");
ldns_rr_list_print(stderr, ldns_pkt_authority(p));
exit(EXIT_FAILURE);
}
} else {
if (verbosity >= 2) {
printf("First authority list for this set, nothing to compare with\n\n");
}
authority_list = ldns_rr_list_clone(ldns_pkt_authority(p));
ldns_rr_list_sort(authority_list);
if (verbosity >= 3) {
printf("NS RRset:\n");
ldns_rr_list_print(stdout, authority_list);
printf("\n");
}
}
}
}
ldns_rr_list_deep_free(authority_list);
authority_list = NULL;
if (loop_count++ > 20) {
/* unlikely that we are doing something usefull */
fprintf(stderr, "Looks like we are looping");
ldns_pkt_free(p);
return NULL;
}
ldns_pkt_free(p);
if (verbosity >= 3) {
fprintf(stdout, "This level ok. Continuing to next.\n\n");
}
status = ldns_resolver_send(&p, res, name, t, c, 0);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error querying root servers: %s\n", ldns_get_errorstr_by_id(status));
return NULL;
}
if (ldns_pkt_get_rcode(p) != LDNS_RCODE_NOERROR) {
printf("Error in packet:\n");
ldns_pkt_print(stdout, p);
return NULL;
}
if (verbosity >= 4) {
ldns_pkt_print(stdout, p);
printf("\n\n");
}
ldns_rr_list_deep_free(new_nss_aaaa);
ldns_rr_list_deep_free(new_nss_a);
ldns_rr_list_deep_free(new_nss);
new_nss_aaaa = NULL;
new_nss_a = NULL;
ns_addr = NULL;
}
ldns_rr_list_deep_free(answer_list);
answer_list = NULL;
/* clone the nameserver list, we are going to handle them one by one */
last_nameserver_count = 0;
last_nameservers = LDNS_XMALLOC(ldns_rdf *, ldns_resolver_nameserver_count(res));
pop = NULL;
while((pop = ldns_resolver_pop_nameserver(res))) {
last_nameservers[last_nameserver_count] = pop;
last_nameserver_count++;
}
for (nss_i = 0; nss_i < last_nameserver_count; nss_i++) {
/* remove previous nameserver */
while((pop = ldns_resolver_pop_nameserver(res))) { ldns_rdf_deep_free(pop); }
if (verbosity >= 1) {
printf("Querying nameserver: ");
ldns_rdf_print(stdout, last_nameservers[nss_i]);
printf("\n");
}
status = ldns_resolver_push_nameserver(res, last_nameservers[nss_i]);
if (status != LDNS_STATUS_OK) {
fprintf(stderr, "Error adding nameserver to resolver: %s\n", ldns_get_errorstr_by_id(status));
}
ldns_pkt_free(p);
status = ldns_resolver_send(&p, res, name, t, c, 0);
if (!p) {
fprintf(stderr, "no packet received\n");
return NULL;
}
if (status == LDNS_STATUS_RES_NO_NS) {
fprintf(stderr, "Error: nameserver at ");
ldns_rdf_print(stderr, last_nameservers[nss_i]);
fprintf(stderr, " not responding. Unable to check RRset here, aborting.\n");
return NULL;
}
if (ldns_pkt_get_rcode(p) != LDNS_RCODE_NOERROR) {
printf("Error in packet:\n");
ldns_pkt_print(stdout, p);
return NULL;
}
if (answer_list) {
if (verbosity >= 2) {
printf("1Comparing answer rr list of answer to previous\n");
}
ldns_rr_list_sort(ldns_pkt_answer(p));
ldns_rr_list_sort(answer_list);
if (ldns_rr_list_compare(answer_list, ldns_pkt_answer(p)) != 0) {
printf("ERROR: different answer section in response from nameserver\n");
fprintf(stderr, "\nI had:\n");
ldns_rr_list_print(stderr, answer_list);
fprintf(stderr, "\nI received (from nameserver at ");
ldns_rdf_print(stderr, ldns_resolver_nameservers(res)[0]);
fprintf(stderr, "):\n");
ldns_rr_list_print(stderr, ldns_pkt_answer(p));
exit(EXIT_FAILURE);
}
} else {
if (verbosity >= 2) {
printf("First answer rr list for this set, nothing to compare with\n");
}
answer_list = ldns_rr_list_clone(ldns_pkt_answer(p));
if (verbosity >= 3) {
printf("DNSKEY RRset:\n");
ldns_rr_list_print(stdout, answer_list);
}
}
}
for (nss_i = 0; nss_i < last_nameserver_count; nss_i++) {
ldns_rdf_deep_free(last_nameservers[nss_i]);
}
LDNS_FREE(last_nameservers);
ldns_resolver_deep_free(res);
ldns_pkt_free(p);
return answer_list;
}
void* run_server(void* data) {
timeout_thread_data* tdata = (timeout_thread_data*)data;
int fd;
struct sockaddr_in serv_addr;
uint8_t mesg[65536];
fd_set read_fds;
ldns_rdf* answerfrom;
ldns_resolver* resolver;
int num_received = 0;
queued_response responses[10];
ldns_resolver_new_frm_file(&resolver, NULL);
fd=socket(AF_INET,SOCK_DGRAM,0);
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr=htonl(INADDR_ANY);
serv_addr.sin_port=htons(tdata->port);
bind(fd,(struct sockaddr *)&serv_addr,sizeof(serv_addr));
/* signal that it's listening */
/* dirty timing hack to yield */
sleep(1);
tdata->running = 1;
/* queue up query responses to send out, and delay sending them
* for a second */
while (tdata->running) {
struct sockaddr_in client_addr;
FD_ZERO(&read_fds);
FD_SET(fd, &read_fds);
struct timeval tv;
tv.tv_sec = 1;
tv.tv_usec = 0;
int r = select(fd + 1, &read_fds, NULL, NULL, &tv);
if (r > 0 && num_received < 10) {
ldns_pkt* query;
socklen_t len = sizeof(client_addr);
int n = recvfrom(fd,mesg,65536,0,(struct sockaddr *)&(responses[num_received].client_addr),&len);
ldns_wire2pkt(&query, mesg, n);
ldns_resolver_send_pkt(&(responses[num_received].pkt), resolver, query);
ldns_str2rdf_a(&answerfrom, "127.0.0.1");
ldns_pkt_set_answerfrom(responses[num_received].pkt, answerfrom);
ldns_pkt_free(query);
++num_received;
} else if (r == 0 && num_received > 0) {
int i = 0;
/* timeout - see if we have anything to send */
for (i = 0; i < num_received; ++i) {
uint8_t* pkt_data;
size_t pkt_len;
ldns_pkt* answer = responses[i].pkt;
ldns_pkt2wire(&pkt_data, answer, &pkt_len);
sendto(fd,pkt_data,pkt_len,0,(struct sockaddr *)&(responses[i].client_addr),sizeof(client_addr));
free(pkt_data);
ldns_pkt_free(answer);
}
num_received = 0;
}
}
ldns_resolver_deep_free(resolver);
return NULL;
}
int
getrrsetbyname(const char *hostname, unsigned int rdclass,
unsigned int rdtype, unsigned int flags,
struct rrsetinfo **res)
{
int result;
unsigned int i, j, index_ans, index_sig;
struct rrsetinfo *rrset = NULL;
struct rdatainfo *rdata;
size_t len;
ldns_resolver *ldns_res;
ldns_rdf *domain = NULL;
ldns_pkt *pkt = NULL;
ldns_rr_list *rrsigs = NULL, *rrdata = NULL;
ldns_status err;
ldns_rr *rr;
/* check for invalid class and type */
if (rdclass > 0xffff || rdtype > 0xffff) {
result = ERRSET_INVAL;
goto fail;
}
/* don't allow queries of class or type ANY */
if (rdclass == 0xff || rdtype == 0xff) {
result = ERRSET_INVAL;
goto fail;
}
/* don't allow flags yet, unimplemented */
if (flags) {
result = ERRSET_INVAL;
goto fail;
}
/* Initialize resolver from resolv.conf */
domain = ldns_dname_new_frm_str(hostname);
if ((err = ldns_resolver_new_frm_file(&ldns_res, NULL)) != \
LDNS_STATUS_OK) {
result = ERRSET_FAIL;
goto fail;
}
#ifdef LDNS_DEBUG
ldns_resolver_set_debug(ldns_res, true);
#endif /* LDNS_DEBUG */
ldns_resolver_set_dnssec(ldns_res, true); /* Use DNSSEC */
/* make query */
pkt = ldns_resolver_query(ldns_res, domain, rdtype, rdclass, LDNS_RD);
/*** TODO: finer errcodes -- see original **/
if (!pkt || ldns_pkt_ancount(pkt) < 1) {
result = ERRSET_FAIL;
goto fail;
}
/* initialize rrset */
rrset = calloc(1, sizeof(struct rrsetinfo));
if (rrset == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
rrdata = ldns_pkt_rr_list_by_type(pkt, rdtype, LDNS_SECTION_ANSWER);
rrset->rri_nrdatas = ldns_rr_list_rr_count(rrdata);
if (!rrset->rri_nrdatas) {
result = ERRSET_NODATA;
goto fail;
}
/* copy name from answer section */
len = ldns_rdf_size(ldns_rr_owner(ldns_rr_list_rr(rrdata, 0)));
if ((rrset->rri_name = malloc(len)) == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
memcpy(rrset->rri_name,
ldns_rdf_data(ldns_rr_owner(ldns_rr_list_rr(rrdata, 0))), len);
rrset->rri_rdclass = ldns_rr_get_class(ldns_rr_list_rr(rrdata, 0));
rrset->rri_rdtype = ldns_rr_get_type(ldns_rr_list_rr(rrdata, 0));
rrset->rri_ttl = ldns_rr_ttl(ldns_rr_list_rr(rrdata, 0));
debug2("ldns: got %u answers from DNS", rrset->rri_nrdatas);
/* Check for authenticated data */
if (ldns_pkt_ad(pkt)) {
rrset->rri_flags |= RRSET_VALIDATED;
} else { /* AD is not set, try autonomous validation */
ldns_rr_list * trusted_keys = ldns_rr_list_new();
debug2("ldns: trying to validate RRset");
/* Get eventual sigs */
rrsigs = ldns_pkt_rr_list_by_type(pkt, LDNS_RR_TYPE_RRSIG,
LDNS_SECTION_ANSWER);
rrset->rri_nsigs = ldns_rr_list_rr_count(rrsigs);
debug2("ldns: got %u signature(s) (RRTYPE %u) from DNS",
rrset->rri_nsigs, LDNS_RR_TYPE_RRSIG);
if ((err = ldns_verify_trusted(ldns_res, rrdata, rrsigs,
trusted_keys)) == LDNS_STATUS_OK) {
rrset->rri_flags |= RRSET_VALIDATED;
debug2("ldns: RRset is signed with a valid key");
} else {
debug2("ldns: RRset validation failed: %s",
ldns_get_errorstr_by_id(err));
}
ldns_rr_list_deep_free(trusted_keys);
}
/* allocate memory for answers */
rrset->rri_rdatas = calloc(rrset->rri_nrdatas,
sizeof(struct rdatainfo));
if (rrset->rri_rdatas == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
/* allocate memory for signatures */
if (rrset->rri_nsigs > 0) {
rrset->rri_sigs = calloc(rrset->rri_nsigs,
sizeof(struct rdatainfo));
if (rrset->rri_sigs == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
}
/* copy answers & signatures */
for (i=0, index_ans=0, index_sig=0; i< pkt->_header->_ancount; i++) {
rdata = NULL;
rr = ldns_rr_list_rr(ldns_pkt_answer(pkt), i);
if (ldns_rr_get_class(rr) == rrset->rri_rdclass &&
ldns_rr_get_type(rr) == rrset->rri_rdtype) {
rdata = &rrset->rri_rdatas[index_ans++];
}
if (rr->_rr_class == rrset->rri_rdclass &&
rr->_rr_type == LDNS_RR_TYPE_RRSIG &&
rrset->rri_sigs) {
rdata = &rrset->rri_sigs[index_sig++];
}
if (rdata) {
size_t rdata_offset = 0;
rdata->rdi_length = 0;
for (j=0; j< rr->_rd_count; j++) {
rdata->rdi_length +=
ldns_rdf_size(ldns_rr_rdf(rr, j));
}
rdata->rdi_data = malloc(rdata->rdi_length);
if (rdata->rdi_data == NULL) {
result = ERRSET_NOMEMORY;
goto fail;
}
/* Re-create the raw DNS RDATA */
for (j=0; j< rr->_rd_count; j++) {
len = ldns_rdf_size(ldns_rr_rdf(rr, j));
memcpy(rdata->rdi_data + rdata_offset,
ldns_rdf_data(ldns_rr_rdf(rr, j)), len);
rdata_offset += len;
}
}
}
*res = rrset;
result = ERRSET_SUCCESS;
fail:
/* freerrset(rrset); */
ldns_rdf_deep_free(domain);
ldns_pkt_free(pkt);
ldns_rr_list_deep_free(rrsigs);
ldns_rr_list_deep_free(rrdata);
ldns_resolver_deep_free(ldns_res);
return result;
}
int main (int argc, char **argv) {
/* Local Vars */
char *out = NULL;
ldns_resolver *res;
ldns_rdf *domain;
ldns_rdf *host;
ldns_rdf *example;
ldns_pkt *pkt;
ldns_rr *rr;
ldns_status status;
/* Set signal handling and alarm */
if (signal(SIGALRM, timeout_alarm_handler) == SIG_ERR)
critical("Setup SIGALRM trap failed!");
/* Process check arguments */
if (process_arguments(argc, argv) != OK)
unknown("Parsing arguments failed!");
/* Start plugin timeout */
alarm(mp_timeout);
// Create DNAME from domainname
domain = ldns_dname_new_frm_str(domainname);
if (!domain)
usage("Invalid domainname '%s'", domainname);
// Create rdf from hostaddr
host = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, hostname);
#ifdef USE_IPV6
if (!host)
host = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, hostname);
#endif
if (!host) {
ldns_rdf_deep_free(domain);
usage("Invalid hostname '%s'", hostname);
}
// Create DNAME from example.com
example = ldns_dname_new_frm_str("exmple.com");
if (!example)
usage("Invalid domainname 'example.com'");
// Create resolver
res = ldns_resolver_new();
if (!res) {
ldns_rdf_deep_free(domain);
ldns_rdf_deep_free(host);
unknown("Create resolver failed.");
}
// Add ns to resolver
status = ldns_resolver_push_nameserver(res, host);
if (status != LDNS_STATUS_OK) {
ldns_rdf_deep_free(domain);
ldns_rdf_deep_free(host);
ldns_resolver_deep_free(res);
unknown("Adding %s as NS fails.", domainname);
}
if (udp) {
// Disable TCP
ldns_resolver_set_usevc(res, 0);
// Fetch SOA
pkt = mp_ldns_resolver_query(res, domain, LDNS_RR_TYPE_SOA,
LDNS_RR_CLASS_IN, 0);
if (pkt == NULL || ldns_pkt_get_rcode(pkt) != LDNS_RCODE_NOERROR) {
mp_strcat_comma(&out, "No UDP Answer");
} else if (ldns_pkt_aa(pkt) == 0) {
mp_strcat_comma(&out, "Non Authoritative UDP Answer");
}
if (mp_verbose > 2) {
printf("[ SOA Answer ]----------\n");
ldns_pkt_print(stdout,pkt);
}
ldns_pkt_free(pkt);
if (recursion) {
// Fetch example.com SOA
ldns_resolver_set_recursive(res, TRUE);
pkt = mp_ldns_resolver_query(res, example, LDNS_RR_TYPE_SOA,
LDNS_RR_CLASS_IN, LDNS_RD);
ldns_resolver_set_recursive(res, FALSE);
if (pkt && (ldns_pkt_get_rcode(pkt) != LDNS_RCODE_REFUSED &&
ldns_pkt_get_rcode(pkt) != LDNS_RCODE_SERVFAIL)) {
mp_strcat_comma(&out, "Recursive UDP Answer");
}
if (mp_verbose > 2) {
printf("[ SOA Answer ]----------\n");
ldns_pkt_print(stdout,pkt);
}
ldns_pkt_free(pkt);
}
}
if (tcp) {
// Enable TCP
ldns_resolver_set_usevc(res, 1);
// Fetch SOA
pkt = mp_ldns_resolver_query(res, domain, LDNS_RR_TYPE_SOA,
LDNS_RR_CLASS_IN, 0);
if (pkt == NULL || ldns_pkt_get_rcode(pkt) != LDNS_RCODE_NOERROR) {
mp_strcat_comma(&out, "No TCP Answer");
} else if (ldns_pkt_aa(pkt) == 0) {
mp_strcat_comma(&out, "Non Authoritative TCP Answer");
}
if (mp_verbose > 2) {
printf("[ SOA Answer ]----------\n");
ldns_pkt_print(stdout,pkt);
}
ldns_pkt_free(pkt);
if (recursion) {
// Fetch example.com SOA
ldns_resolver_set_recursive(res, TRUE);
pkt = mp_ldns_resolver_query(res, example, LDNS_RR_TYPE_SOA,
LDNS_RR_CLASS_IN, LDNS_RD);
ldns_resolver_set_recursive(res, FALSE);
if (pkt && (ldns_pkt_get_rcode(pkt) != LDNS_RCODE_REFUSED &&
ldns_pkt_get_rcode(pkt) != LDNS_RCODE_SERVFAIL)) {
mp_strcat_comma(&out, "Recursive TCP Answer");
}
if (mp_verbose > 2) {
printf("[ SOA Answer ]----------\n");
ldns_pkt_print(stdout,pkt);
}
ldns_pkt_free(pkt);
}
}
if (axfr) {
status = ldns_axfr_start(res, domain, LDNS_RR_CLASS_IN);
if (status == LDNS_STATUS_OK) {
rr = NULL;
rr = ldns_axfr_next(res);
if (rr) {
mp_strcat_comma(&out, "AXFR allowed.");
}
}
}
if (out)
critical("Authoritative DNS for %s: %s", domainname, out);
ok("Authoritative DNS for %s", domainname);
}
ldns_rr_list* getaddr_rdf(ldns_resolver *res, ldns_rdf *hostrdf) {
ldns_rdf *rdf;
ldns_resolver *r = NULL;
ldns_rr_list *rrl;
ldns_rr_list *ret = NULL;
ldns_pkt *pkt;
ldns_status status;
if (ldns_rdf_get_type(hostrdf) == LDNS_RDF_TYPE_A
#ifdef USE_IPV6
|| ldns_rdf_get_type(hostrdf) == LDNS_RDF_TYPE_AAAA
#endif
) {
rdf = ldns_rdf_address_reverse(hostrdf);
r = res;
if (res == NULL) {
status = ldns_resolver_new_frm_file(&r, NULL);
if (status != LDNS_STATUS_OK)
return NULL;
}
// Fetch PTR
pkt = ldns_resolver_query(r, rdf, LDNS_RR_TYPE_PTR, LDNS_RR_CLASS_IN,
LDNS_RD);
if (pkt == NULL || ldns_pkt_get_rcode(pkt) != LDNS_RCODE_NOERROR)
return NULL;
rrl = ldns_pkt_rr_list_by_name_and_type(pkt, rdf, LDNS_RR_TYPE_PTR,
LDNS_SECTION_ANSWER);
if (ldns_rr_list_rr_count(rrl) != 1)
return NULL;
ldns_rdf_deep_free(rdf);
rdf = ldns_rdf_clone(ldns_rr_rdf(ldns_rr_list_rr(rrl,0),0));
ldns_pkt_free(pkt);
ldns_rr_list_deep_free(rrl);
} else if (ldns_rdf_get_type(hostrdf) == LDNS_RDF_TYPE_DNAME) {
rdf = hostrdf;
} else {
return NULL;
}
if (r == NULL) {
r = res;
if (res == NULL) {
status = ldns_resolver_new_frm_file(&r, NULL);
if (status != LDNS_STATUS_OK)
return NULL;
}
}
#ifdef USE_IPV6
if (ldns_rdf_get_type(hostrdf) != LDNS_RDF_TYPE_A) {
// Fetch AAAA
pkt = ldns_resolver_query(r, rdf, LDNS_RR_TYPE_AAAA, LDNS_RR_CLASS_IN,
LDNS_RD);
if (pkt != NULL && ldns_pkt_get_rcode(pkt) == LDNS_RCODE_NOERROR) {
rrl = ldns_pkt_rr_list_by_name_and_type(pkt, rdf, LDNS_RR_TYPE_AAAA,
LDNS_SECTION_ANSWER);
ldns_pkt_free(pkt);
if (ldns_rr_list_rr_count(rrl) > 0) {
ret = rrl;
rrl = NULL;
} else {
ldns_rr_list_free(rrl);
}
}
}
if (ldns_rdf_get_type(hostrdf) != LDNS_RDF_TYPE_AAAA) {
#else
if (1) {
#endif /* USE_IPV6 */
// Fetch AA
pkt = ldns_resolver_query(r, rdf, LDNS_RR_TYPE_A, LDNS_RR_CLASS_IN,
LDNS_RD);
if (pkt != NULL && ldns_pkt_get_rcode(pkt) == LDNS_RCODE_NOERROR) {
rrl = ldns_pkt_rr_list_by_name_and_type(pkt, rdf, LDNS_RR_TYPE_A,
LDNS_SECTION_ANSWER);
ldns_pkt_free(pkt);
if (ldns_rr_list_rr_count(rrl) > 0) {
if (ret == NULL) {
ret = rrl;
} else {
ldns_rr_list_cat(ret, rrl);
ldns_rr_list_free(rrl);
}
} else {
ldns_rr_list_free(rrl);
}
} // if (pkt != NULL && ldns_pkt_ge...
}
if (res == NULL)
ldns_resolver_deep_free(r);
return ret;
}
ldns_rr_list* getaddr(ldns_resolver *res, const char *hostname) {
ldns_rdf *rdf;
/* Check if hostname is a ip */
rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_A, hostname);
#ifdef USE_IPV6
if (!rdf) {
rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_AAAA, hostname);
}
#endif
if (!rdf) {
rdf = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, hostname);
}
if (!rdf)
return NULL;
return getaddr_rdf(res, rdf);
}
int main(int argc, char **argv) {
/* Local Vars */
int i;
int soa_valid = 0;
int ns_valid = 0;
ldns_rdf *rd_domain;
ldns_rdf *rd_trace;
ldns_rdf *rd_cdomain;
ldns_pkt *pkt;
ldns_resolver *res;
ldns_rr *rr;
ldns_rr_list *rrl;
ldns_rr_list *rrl_domain_soa;
ldns_rr_list *rrl_domain_soa_rrsig;
ldns_rr_list *rrl_domain_ns;
ldns_rr_list *rrl_domain_ns_rrsig;
ldns_rr_list *rrl_valid_keys;
ldns_status status;
/* Set signal handling and alarm */
if (signal(SIGALRM, timeout_alarm_handler) == SIG_ERR)
critical("Setup SIGALRM trap failed!");
/* Process check arguments */
if (process_arguments(argc, argv) != OK)
unknown("Parsing arguments failed!");
/* Start plugin timeout */
alarm(mp_timeout);
rd_domain = ldns_dname_new_frm_str(domainname);
if (!rd_domain)
unknown("Illegal domain name");
rd_trace = ldns_dname_new_frm_str(domaintrace);
if (!rd_trace)
unknown("Illegal trace domain name");
/* Check domain is subdomain from trace start */
if (!ldns_dname_is_subdomain(rd_domain, rd_trace)) {
ldns_rr_list_deep_free(trusted_keys);
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
unknown("'%s' is not a subdomain of '%s'.", domainname,
domaintrace);
}
/* Add trusted keys for trace domain to rrl_valid_keys. */
rrl_valid_keys = ldns_rr_list_new();
for(i = 0; i < ldns_rr_list_rr_count(trusted_keys); i++) {
rr = ldns_rr_list_rr(trusted_keys, i);
if (ldns_dname_compare(ldns_rr_owner(rr),rd_trace) == 0)
ldns_rr_list_push_rr(rrl_valid_keys, ldns_rr_clone(rr));
}
ldns_rr_list_deep_free(trusted_keys);
if (ldns_rr_list_rr_count(rrl_valid_keys) == 0) {
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_rr_list_deep_free(rrl_valid_keys);
critical("No trusted key for trace start '%s'", domaintrace?domaintrace:".");
}
if (mp_verbose >= 2) {
printf("--[ Trusted keys used ]-------------------------------------\n");
ldns_rr_list_sort(rrl_valid_keys);
ldns_rr_list_print(stdout, rrl_valid_keys);
printf("------------------------------------------------------------\n");
}
/* create a new resolver with dns_server or server from /etc/resolv.conf */
res = createResolver(hostname);
if (!res) {
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_rr_list_deep_free(rrl_valid_keys);
unknown("Creating resolver failed.");
}
resolverEnableDnssec(res);
ldns_resolver_set_dnssec_anchors(res, rrl_valid_keys);
/* check domain exists */
pkt = mp_ldns_resolver_query(res, rd_domain, LDNS_RR_TYPE_SOA,
LDNS_RR_CLASS_IN, LDNS_RD);
if (pkt == NULL || ldns_pkt_get_rcode(pkt) != LDNS_RCODE_NOERROR) {
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_resolver_deep_free(res);
if (pkt && ldns_pkt_get_rcode(pkt) == LDNS_RCODE_NXDOMAIN) {
ldns_pkt_free(pkt);
critical("Domain '%s' don't exist.", domainname);
}
ldns_pkt_free(pkt);
critical("Unable to get SOA for %s.", domainname);
}
rrl_domain_soa = ldns_pkt_rr_list_by_name_and_type(pkt, rd_domain,
LDNS_RR_TYPE_SOA,
LDNS_SECTION_ANSWER);
if (rrl_domain_soa == NULL || ldns_rr_list_rr_count(rrl_domain_soa) == 0) {
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_resolver_deep_free(res);
ldns_pkt_free(pkt);
critical("Domain '%s' not found.", domainname);
}
rrl_domain_soa_rrsig = ldns_dnssec_pkt_get_rrsigs_for_name_and_type(pkt,
rd_domain, LDNS_RR_TYPE_SOA);
if (rrl_domain_soa_rrsig == NULL ||
ldns_rr_list_rr_count(rrl_domain_soa_rrsig) == 0) {
free(domaintrace);
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_resolver_deep_free(res);
ldns_pkt_free(pkt);
ldns_rr_list_deep_free(rrl_domain_soa);
critical("Domain '%s' not signed.", domainname);
}
ldns_pkt_free(pkt);
pkt = ldns_resolver_query(res, rd_domain, LDNS_RR_TYPE_NS,
LDNS_RR_CLASS_IN, LDNS_RD);
rrl_domain_ns = ldns_pkt_rr_list_by_name_and_type(pkt, rd_domain,
LDNS_RR_TYPE_NS,
LDNS_SECTION_ANSWER);
rrl_domain_ns_rrsig = ldns_dnssec_pkt_get_rrsigs_for_name_and_type(pkt,
rd_domain,
LDNS_RR_TYPE_NS);
ldns_pkt_free(pkt);
if (mp_verbose >= 2) {
printf("--[ Checked Domain ]----------------------------------------\n");
ldns_rr_list_print(stdout, rrl_domain_soa);
printf("------------------------------------------------------------\n");
ldns_rr_list_print(stdout, rrl_domain_soa_rrsig);
printf("------------------------------------------------------------\n");
ldns_rr_list_print(stdout, rrl_domain_ns);
printf("------------------------------------------------------------\n");
ldns_rr_list_print(stdout, rrl_domain_ns_rrsig);
printf("------------------------------------------------------------\n");
}
/* create a new resolver with dns_server or server from /etc/resolv.conf */
ldns_resolver_free(res);
res = createResolver(resolver);
if (!res) {
ldns_rdf_deep_free(rd_domain);
ldns_rdf_deep_free(rd_trace);
ldns_rr_list_deep_free(rrl_valid_keys);
unknown("Creating resolver failed.");
}
resolverEnableDnssec(res);
ldns_resolver_set_dnssec_anchors(res, rrl_valid_keys);
/* Fetch valid keys from top down */
i = ldns_dname_label_count(rd_domain) - ldns_dname_label_count(rd_trace);
for (; i>=0; i--) {
rd_cdomain = ldns_dname_clone_from(rd_domain, i);
if (mp_verbose) {
char *str = ldns_rdf2str(rd_cdomain);
printf("Trace: %s\n", str);
free(str);
}
rrl = ldns_fetch_valid_domain_keys(res, rd_cdomain, rrl_valid_keys, &status);
if (mp_verbose >= 2) {
printf("--[ Valid Keys ]----------------------------------------\n");
ldns_rr_list_sort(rrl);
ldns_rr_list_print(stdout, rrl);
printf("------------------------------------------------------------\n");
}
ldns_rr_list_cat(rrl_valid_keys, rrl);
ldns_rr_list_free(rrl);
ldns_rdf_deep_free(rd_cdomain);
}
ldns_rdf_deep_free(rd_trace);
ldns_rdf_deep_free(rd_domain);
/* Validate SOA */
for(i = 0; i < ldns_rr_list_rr_count(rrl_domain_soa_rrsig); i++) {
rr = ldns_rr_list_rr(rrl_domain_soa_rrsig, i);
status = ldns_verify_rrsig_keylist(rrl_domain_soa, rr, rrl_valid_keys, NULL);
if (status == LDNS_STATUS_OK)
soa_valid++;
else if (mp_verbose > 0)
fprintf(stderr, "ldns_verify_rrsig_keylist SOA failed: %s\n",
ldns_get_errorstr_by_id(status));
}
ldns_rr_list_deep_free(rrl_domain_soa);
ldns_rr_list_deep_free(rrl_domain_soa_rrsig);
if (soa_valid == 0) {
critical("No valid Signatur for SOA of '%s'", domainname);
free(domainname);
free(domaintrace);
ldns_resolver_deep_free(res);
ldns_rr_list_deep_free(rrl_domain_ns);
ldns_rr_list_deep_free(rrl_domain_ns_rrsig);
return checkState;
}
/* Validate NS */
for(i = 0; i < ldns_rr_list_rr_count(rrl_domain_ns_rrsig); i++) {
rr = ldns_rr_list_rr(rrl_domain_ns_rrsig, i);
status = ldns_verify_rrsig_keylist(rrl_domain_ns, rr, rrl_valid_keys, NULL);
if (status == LDNS_STATUS_OK)
ns_valid++;
else if (mp_verbose > 0)
fprintf(stderr, "ldns_verify_rrsig_keylist NS failed: %s\n",
ldns_get_errorstr_by_id(status));
}
ldns_rr_list_deep_free(rrl_domain_ns);
ldns_rr_list_deep_free(rrl_domain_ns_rrsig);
ldns_resolver_deep_free(res);
if (ns_valid == 0) {
critical("No valid Signatur for NS of '%s'", domainname);
free(domainname);
free(domaintrace);
return checkState;
}
ok("Trust for '%s' successfull traces from '%s'", domainname,
domaintrace);
free(domainname);
free(domaintrace);
return checkState;
}