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-rw-r--r--source4/librpc/rpc/dcerpc.h4
-rw-r--r--source4/librpc/rpc/dcerpc_connect.c4
-rw-r--r--source4/librpc/rpc/dcerpc_secondary.c1
-rw-r--r--source4/librpc/rpc/dcerpc_sock.c25
-rw-r--r--source4/librpc/rpc/dcerpc_util.c1
5 files changed, 28 insertions, 7 deletions
diff --git a/source4/librpc/rpc/dcerpc.h b/source4/librpc/rpc/dcerpc.h
index b77628d8d7..b5062a55e3 100644
--- a/source4/librpc/rpc/dcerpc.h
+++ b/source4/librpc/rpc/dcerpc.h
@@ -181,6 +181,9 @@ struct dcerpc_pipe {
/* use NDR64 transport */
#define DCERPC_NDR64 (1<<21)
+/* specify binding interface */
+#define DCERPC_LOCALADDRESS (1<<22)
+
/* this describes a binding to a particular transport/pipe */
struct dcerpc_binding {
enum dcerpc_transport_t transport;
@@ -189,6 +192,7 @@ struct dcerpc_binding {
const char *target_hostname;
const char *endpoint;
const char **options;
+ const char *localaddress;
uint32_t flags;
uint32_t assoc_group_id;
};
diff --git a/source4/librpc/rpc/dcerpc_connect.c b/source4/librpc/rpc/dcerpc_connect.c
index 7779d31f99..0f3a86256c 100644
--- a/source4/librpc/rpc/dcerpc_connect.c
+++ b/source4/librpc/rpc/dcerpc_connect.c
@@ -276,6 +276,7 @@ static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context
struct pipe_ip_tcp_state {
struct dcerpc_pipe_connect io;
+ const char *localaddr;
const char *host;
const char *target_hostname;
uint32_t port;
@@ -319,13 +320,14 @@ static struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CT
/* store input parameters in state structure */
s->io = *io;
+ s->localaddr = talloc_reference(c, io->binding->localaddress);
s->host = talloc_reference(c, io->binding->host);
s->target_hostname = talloc_reference(c, io->binding->target_hostname);
/* port number is a binding endpoint here */
s->port = atoi(io->binding->endpoint);
/* send pipe open request on tcp/ip */
- pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->host, s->target_hostname,
+ pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->localaddr, s->host, s->target_hostname,
s->port, io->resolve_ctx);
composite_continue(c, pipe_req, continue_pipe_open_ncacn_ip_tcp, c);
return c;
diff --git a/source4/librpc/rpc/dcerpc_secondary.c b/source4/librpc/rpc/dcerpc_secondary.c
index 5f355a5937..65466e45e0 100644
--- a/source4/librpc/rpc/dcerpc_secondary.c
+++ b/source4/librpc/rpc/dcerpc_secondary.c
@@ -102,6 +102,7 @@ _PUBLIC_ struct composite_context* dcerpc_secondary_connection_send(struct dcerp
}
pipe_tcp_req = dcerpc_pipe_open_tcp_send(s->pipe2->conn,
+ s->binding->localaddress,
s->peer_addr->addr,
s->binding->target_hostname,
atoi(s->binding->endpoint),
diff --git a/source4/librpc/rpc/dcerpc_sock.c b/source4/librpc/rpc/dcerpc_sock.c
index d8bd6d2938..4ab8c35091 100644
--- a/source4/librpc/rpc/dcerpc_sock.c
+++ b/source4/librpc/rpc/dcerpc_sock.c
@@ -228,6 +228,7 @@ struct pipe_open_socket_state {
struct dcerpc_connection *conn;
struct socket_context *socket_ctx;
struct sock_private *sock;
+ struct socket_address *localaddr;
struct socket_address *server;
const char *target_hostname;
enum dcerpc_transport_t transport;
@@ -305,6 +306,7 @@ static void continue_socket_connect(struct composite_context *ctx)
static struct composite_context *dcerpc_pipe_open_socket_send(TALLOC_CTX *mem_ctx,
struct dcerpc_connection *cn,
+ struct socket_address *localaddr,
struct socket_address *server,
const char *target_hostname,
const char *full_path,
@@ -323,6 +325,10 @@ static struct composite_context *dcerpc_pipe_open_socket_send(TALLOC_CTX *mem_ct
s->conn = cn;
s->transport = transport;
+ if (localaddr) {
+ s->localaddr = talloc_reference(c, localaddr);
+ if (composite_nomem(s->localaddr, c)) return c;
+ }
s->server = talloc_reference(c, server);
if (composite_nomem(s->server, c)) return c;
s->target_hostname = talloc_reference(s, target_hostname);
@@ -337,7 +343,7 @@ static struct composite_context *dcerpc_pipe_open_socket_send(TALLOC_CTX *mem_ct
s->sock->path = talloc_reference(s->sock, full_path);
- conn_req = socket_connect_send(s->socket_ctx, NULL, s->server, 0,
+ conn_req = socket_connect_send(s->socket_ctx, s->localaddr, s->server, 0,
c->event_ctx);
composite_continue(c, conn_req, continue_socket_connect, c);
return c;
@@ -357,6 +363,7 @@ struct pipe_tcp_state {
const char *target_hostname;
const char *address;
uint32_t port;
+ struct socket_address *localaddr;
struct socket_address *srvaddr;
struct resolve_context *resolve_ctx;
struct dcerpc_connection *conn;
@@ -385,7 +392,7 @@ static void continue_ip_resolve_name(struct composite_context *ctx)
if (composite_nomem(s->srvaddr, c)) return;
/* resolve_nbt_name gives only ipv4 ... - send socket open request */
- sock_ipv4_req = dcerpc_pipe_open_socket_send(c, s->conn,
+ sock_ipv4_req = dcerpc_pipe_open_socket_send(c, s->conn, s->localaddr,
s->srvaddr, s->target_hostname,
NULL,
NCACN_IP_TCP);
@@ -419,7 +426,7 @@ static void continue_ipv6_open_socket(struct composite_context *ctx)
if (composite_nomem(s->srvaddr, c)) return;
/* try IPv4 if IPv6 fails */
- sock_ipv4_req = dcerpc_pipe_open_socket_send(c, s->conn,
+ sock_ipv4_req = dcerpc_pipe_open_socket_send(c, s->conn, s->localaddr,
s->srvaddr, s->target_hostname,
NCACN_IP_TCP);
composite_continue(c, sock_ipv4_req, continue_ipv4_open_socket, c);
@@ -452,12 +459,12 @@ static void continue_ipv4_open_socket(struct composite_context *ctx)
composite_done(c);
}
-
/*
Send rpc pipe open request to given host:port using
tcp/ip transport
*/
struct composite_context* dcerpc_pipe_open_tcp_send(struct dcerpc_connection *conn,
+ const char *localaddr,
const char *server,
const char *target_hostname,
uint32_t port,
@@ -486,6 +493,12 @@ struct composite_context* dcerpc_pipe_open_tcp_send(struct dcerpc_connection *co
s->port = port;
s->conn = conn;
s->resolve_ctx = resolve_ctx;
+ if (localaddr) {
+ s->localaddr = socket_address_from_strings(s, "ip", localaddr, 0);
+ /* if there is no localaddr, we pass NULL for
+ s->localaddr, which is handled by the socket libraries as
+ meaning no local binding address specified */
+ }
make_nbt_name_server(&name, server);
resolve_req = resolve_name_send(resolve_ctx, s, &name, c->event_ctx);
@@ -560,7 +573,7 @@ struct composite_context *dcerpc_pipe_open_unix_stream_send(struct dcerpc_connec
if (composite_nomem(s->srvaddr, c)) return c;
/* send socket open request */
- sock_unix_req = dcerpc_pipe_open_socket_send(c, s->conn,
+ sock_unix_req = dcerpc_pipe_open_socket_send(c, s->conn, NULL,
s->srvaddr, NULL,
s->path,
NCALRPC);
@@ -631,7 +644,7 @@ struct composite_context* dcerpc_pipe_open_pipe_send(struct dcerpc_connection *c
if (composite_nomem(s->srvaddr, c)) return c;
/* send socket open request */
- sock_np_req = dcerpc_pipe_open_socket_send(c, s->conn, s->srvaddr, NULL, s->path, NCALRPC);
+ sock_np_req = dcerpc_pipe_open_socket_send(c, s->conn, NULL, s->srvaddr, NULL, s->path, NCALRPC);
composite_continue(c, sock_np_req, continue_np_open_socket, c);
return c;
}
diff --git a/source4/librpc/rpc/dcerpc_util.c b/source4/librpc/rpc/dcerpc_util.c
index ffe8506d21..d27b0f3f5b 100644
--- a/source4/librpc/rpc/dcerpc_util.c
+++ b/source4/librpc/rpc/dcerpc_util.c
@@ -285,6 +285,7 @@ struct composite_context *dcerpc_epm_map_binding_send(TALLOC_CTX *mem_ctx,
epmapper_binding->host = talloc_reference(epmapper_binding, binding->host);
epmapper_binding->target_hostname = epmapper_binding->host;
epmapper_binding->options = NULL;
+ epmapper_binding->localaddress = talloc_reference(epmapper_binding, binding->localaddress);
epmapper_binding->flags = 0;
epmapper_binding->assoc_group_id = 0;
epmapper_binding->endpoint = NULL;
generated by cgit (git 2.34.1) at 2024-12-27 10:14:28 +0000