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-rw-r--r--source4/libnet/libnet_rpc.c93
1 files changed, 86 insertions, 7 deletions
diff --git a/source4/libnet/libnet_rpc.c b/source4/libnet/libnet_rpc.c
index fce7811138..31d2b4dbf4 100644
--- a/source4/libnet/libnet_rpc.c
+++ b/source4/libnet/libnet_rpc.c
@@ -23,13 +23,16 @@
#include "libnet/libnet.h"
#include "libcli/libcli.h"
#include "libcli/composite/composite.h"
+#include "librpc/rpc/dcerpc.h"
#include "librpc/gen_ndr/ndr_lsa_c.h"
#include "librpc/gen_ndr/ndr_samr.h"
struct rpc_connect_srv_state {
+ struct libnet_context *ctx;
struct libnet_RpcConnect r;
const char *binding;
+ enum dcerpc_transport_t trans;
};
@@ -64,15 +67,21 @@ static struct composite_context* libnet_RpcConnectSrv_send(struct libnet_context
c->private_data = s;
c->event_ctx = ctx->event_ctx;
+ s->ctx = ctx;
s->r = *r;
ZERO_STRUCT(s->r.out);
/* prepare binding string */
switch (r->level) {
case LIBNET_RPC_CONNECT_DC:
+ s->binding = talloc_asprintf(s, "ncacn_ip_tcp:%s", r->in.name);
+ s->trans = NCACN_IP_TCP;
+ break;
+
case LIBNET_RPC_CONNECT_PDC:
case LIBNET_RPC_CONNECT_SERVER:
s->binding = talloc_asprintf(s, "ncacn_np:%s", r->in.name);
+ s->trans = NCACN_NP;
break;
case LIBNET_RPC_CONNECT_BINDING:
@@ -104,13 +113,45 @@ static void continue_pipe_connect(struct composite_context *ctx)
{
struct composite_context *c;
struct rpc_connect_srv_state *s;
+ struct composite_context *pipe_connect_req;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct rpc_connect_srv_state);
/* receive result of rpc pipe connection */
c->status = dcerpc_pipe_connect_recv(ctx, c, &s->r.out.dcerpc_pipe);
- if (!composite_is_ok(c)) return;
+
+ if (NT_STATUS_EQUAL(c->status, NT_STATUS_IO_TIMEOUT)) {
+ switch (s->r.level) {
+ case LIBNET_RPC_CONNECT_DC:
+ if (s->trans == NCACN_IP_TCP) {
+ s->binding = talloc_asprintf(s, "ncacn_np:%s", s->r.in.name);
+ s->trans = NCACN_NP;
+ }
+ break;
+
+ case LIBNET_RPC_CONNECT_SERVER:
+ if (s->trans == NCACN_NP) {
+ s->binding = talloc_asprintf(s, "ncacn_ip_tcp:%s", s->r.in.name);
+ s->trans = NCACN_IP_TCP;
+ }
+ break;
+
+ default:
+ if (!composite_is_ok(c)) return;
+ s->r.out.error_string = NULL;
+ composite_done(c);
+ }
+
+ /* connect to remote dcerpc pipe */
+ pipe_connect_req = dcerpc_pipe_connect_send(c, &s->r.out.dcerpc_pipe,
+ s->binding, s->r.in.dcerpc_iface,
+ s->ctx->cred, c->event_ctx);
+ if (composite_nomem(pipe_connect_req, c)) return;
+
+ composite_continue(c, pipe_connect_req, continue_pipe_connect, c);
+ return;
+ }
s->r.out.error_string = NULL;
composite_done(c);
@@ -166,6 +207,9 @@ struct rpc_connect_dc_state {
struct libnet_RpcConnect r2;
struct libnet_LookupDCs f;
const char *connect_name;
+
+ /* information about the progress */
+ void (*monitor_fn)(struct monitor_msg *);
};
@@ -217,6 +261,7 @@ static struct composite_context* libnet_RpcConnectDC_send(struct libnet_context
default:
break;
}
+
s->f.in.domain_name = r->in.name;
s->f.out.num_dcs = 0;
s->f.out.dcs = NULL;
@@ -239,6 +284,8 @@ static void continue_lookup_dc(struct composite_context *ctx)
struct composite_context *c;
struct rpc_connect_dc_state *s;
struct composite_context *rpc_connect_req;
+ struct monitor_msg msg;
+ struct msg_net_lookup_dc data;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct rpc_connect_dc_state);
@@ -247,15 +294,34 @@ static void continue_lookup_dc(struct composite_context *ctx)
c->status = libnet_LookupDCs_recv(ctx, c, &s->f);
if (!composite_is_ok(c)) return;
- /* we might not have got back a name. Fall back to the IP */
- if (s->f.out.dcs[0].name) {
+ /* decide on preferred address type depending on DC type */
+ switch (s->r.level) {
+ case LIBNET_RPC_CONNECT_PDC:
s->connect_name = s->f.out.dcs[0].name;
- } else {
+ break;
+
+ case LIBNET_RPC_CONNECT_DC:
s->connect_name = s->f.out.dcs[0].address;
+ break;
+
+ default:
+ /* we shouldn't absolutely get here */
+ composite_error(c, NT_STATUS_INVALID_LEVEL);
}
+ /* prepare a monitor message and post it */
+ msg.type = net_lookup_dc;
+ msg.data = &data;
+ msg.data_size = sizeof(data);
+
+ data.domain_name = s->f.in.domain_name;
+ data.hostname = s->f.out.dcs[0].name;
+ data.address = s->f.out.dcs[0].address;
+
+ if (s->monitor_fn) s->monitor_fn(&msg);
+
/* ok, pdc has been found so do attempt to rpc connect */
- s->r2.level = LIBNET_RPC_CONNECT_SERVER;
+ s->r2.level = s->r.level;
/* this will cause yet another name resolution, but at least
* we pass the right name down the stack now */
@@ -263,7 +329,7 @@ static void continue_lookup_dc(struct composite_context *ctx)
s->r2.in.dcerpc_iface = s->r.in.dcerpc_iface;
/* send rpc connect request to the server */
- rpc_connect_req = libnet_RpcConnect_send(s->ctx, c, &s->r2);
+ rpc_connect_req = libnet_RpcConnectSrv_send(s->ctx, c, &s->r2);
if (composite_nomem(rpc_connect_req, c)) return;
composite_continue(c, rpc_connect_req, continue_rpc_connect, c);
@@ -277,11 +343,13 @@ static void continue_rpc_connect(struct composite_context *ctx)
{
struct composite_context *c;
struct rpc_connect_dc_state *s;
+ struct monitor_msg msg;
+ struct msg_net_pipe_connected data;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct rpc_connect_dc_state);
- c->status = libnet_RpcConnect_recv(ctx, s->ctx, c, &s->r2);
+ c->status = libnet_RpcConnectSrv_recv(ctx, s->ctx, c, &s->r2);
/* error string is to be passed anyway */
s->r.out.error_string = s->r2.out.error_string;
@@ -289,6 +357,17 @@ static void continue_rpc_connect(struct composite_context *ctx)
s->r.out.dcerpc_pipe = s->r2.out.dcerpc_pipe;
+ /* prepare a monitor message and post it */
+ msg.type = net_pipe_connected;
+ msg.data = NULL;
+ msg.data_size = 0;
+
+ data.host = s->r.out.dcerpc_pipe->binding->host;
+ data.endpoint = s->r.out.dcerpc_pipe->binding->endpoint;
+ data.transport = s->r.out.dcerpc_pipe->binding->transport;
+
+ if (s->monitor_fn) s->monitor_fn(&msg);
+
composite_done(c);
}