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Code Issues Releases Wiki Activity

add -T ednsformerr/ednsnotimp/ednsrefused

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This commit is contained in:
Mark Andrews 2018-07-26 17:53:15 +10:00 committed by Evan Hunt
parent c0c80df254
commit c81c9660f5
3 changed files with 65 additions and 21 deletions
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57
bin/named/main.c
View File

@ -122,14 +122,17 @@ static int maxudp = 0;
*/
static bool clienttest = false;
static bool dropedns = false;
static bool noedns = false;
static bool nosoa = false;
static bool noaa = false;
static unsigned int delay = 0;
static bool nonearest = false;
static bool notcp = false;
static bool ednsformerr = false;
static bool ednsnotimp = false;
static bool ednsrefused = false;
static bool fixedlocal = false;
static bool noaa = false;
static bool noedns = false;
static bool nonearest = false;
static bool nosoa = false;
static bool notcp = false;
static bool sigvalinsecs = false;
static unsigned int delay = 0;
/*
* -4 and -6
@ -488,6 +491,12 @@ parse_T_opt(char *option) {
dropedns = true;
} else if (!strncmp(option, "dscp=", 5)) {
isc_dscp_check_value = atoi(option + 5);
} else if (!strcmp(option, "ednsformerr")) {
ednsformerr = true;
} else if (!strcmp(option, "ednsnotimp")) {
ednsnotimp = true;
} else if (!strcmp(option, "ednsrefused")) {
ednsrefused = true;
} else if (!strcmp(option, "fixedlocal")) {
fixedlocal = true;
} else if (!strcmp(option, "keepstderr")) {
@ -547,7 +556,7 @@ parse_T_opt(char *option) {
} else if (!strncmp(option, "tat=", 4)) {
named_g_tat_interval = atoi(option + 4);
} else {
fprintf(stderr, "unknown -T flag '%s\n", option);
fprintf(stderr, "unknown -T flag '%s'\n", option);
}
}
@ -1159,24 +1168,30 @@ setup(void) {
*/
if (clienttest)
ns_server_setoption(sctx, NS_SERVER_CLIENTTEST, true);
if (dropedns)
ns_server_setoption(sctx, NS_SERVER_DROPEDNS, true);
if (noedns)
ns_server_setoption(sctx, NS_SERVER_NOEDNS, true);
if (nosoa)
ns_server_setoption(sctx, NS_SERVER_NOSOA, true);
if (noaa)
ns_server_setoption(sctx, NS_SERVER_NOAA, true);
if (nonearest)
ns_server_setoption(sctx, NS_SERVER_NONEAREST, true);
if (notcp)
ns_server_setoption(sctx, NS_SERVER_NOTCP, true);
if (fixedlocal)
ns_server_setoption(sctx, NS_SERVER_FIXEDLOCAL, true);
if (disable4)
ns_server_setoption(sctx, NS_SERVER_DISABLE4, true);
if (disable6)
ns_server_setoption(sctx, NS_SERVER_DISABLE6, true);
if (dropedns)
ns_server_setoption(sctx, NS_SERVER_DROPEDNS, true);
if (ednsformerr) /* STD13 server */
ns_server_setoption(sctx, NS_SERVER_EDNSFORMERR, true);
if (ednsnotimp)
ns_server_setoption(sctx, NS_SERVER_EDNSNOTIMP, true);
if (ednsrefused)
ns_server_setoption(sctx, NS_SERVER_EDNSREFUSED, true);
if (fixedlocal)
ns_server_setoption(sctx, NS_SERVER_FIXEDLOCAL, true);
if (noaa)
ns_server_setoption(sctx, NS_SERVER_NOAA, true);
if (noedns)
ns_server_setoption(sctx, NS_SERVER_NOEDNS, true);
if (nonearest)
ns_server_setoption(sctx, NS_SERVER_NONEAREST, true);
if (nosoa)
ns_server_setoption(sctx, NS_SERVER_NOSOA, true);
if (notcp)
ns_server_setoption(sctx, NS_SERVER_NOTCP, true);
if (sigvalinsecs)
ns_server_setoption(sctx, NS_SERVER_SIGVALINSECS, true);

26
lib/ns/client.c
View File

@ -2534,6 +2534,31 @@ ns__client_request(isc_task_t *task, isc_event_t *event) {
client->ecs.scope = 0;
if (opt != NULL) {
/*
* Are returning FORMERR to all EDNS queries?
* Simulate a STD13 compliant server.
*/
if ((client->sctx->options & NS_SERVER_EDNSFORMERR) != 0) {
ns_client_error(client, DNS_R_FORMERR);
return;
}
/*
* Are returning NOTIMP to all EDNS queries?
*/
if ((client->sctx->options & NS_SERVER_EDNSNOTIMP) != 0) {
ns_client_error(client, DNS_R_NOTIMP);
return;
}
/*
* Are returning REFUSED to all EDNS queries?
*/
if ((client->sctx->options & NS_SERVER_EDNSREFUSED) != 0) {
ns_client_error(client, DNS_R_REFUSED);
return;
}
/*
* Are we dropping all EDNS queries?
*/
@ -2541,6 +2566,7 @@ ns__client_request(isc_task_t *task, isc_event_t *event) {
ns_client_next(client, ISC_R_SUCCESS);
return;
}
result = process_opt(client, opt);
if (result != ISC_R_SUCCESS)
return;

3
lib/ns/include/ns/server.h
View File

@ -44,6 +44,9 @@
#define NS_SERVER_DISABLE6 0x00000200U /*%< -4 */
#define NS_SERVER_FIXEDLOCAL 0x00000400U /*%< -T fixedlocal */
#define NS_SERVER_SIGVALINSECS 0x00000800U /*%< -T sigvalinsecs */
#define NS_SERVER_EDNSFORMERR 0x00001000U /*%< -T ednsformerr (STD13) */
#define NS_SERVER_EDNSNOTIMP 0x00002000U /*%< -T ednsnotimp */
#define NS_SERVER_EDNSREFUSED 0x00004000U /*%< -T ednsrefused */
/*%
* Type for callback function to get hostname.