#include "includes.h"
#include "system/filesys.h"
#include "srv_pipe_internal.h"
-#include "../librpc/gen_ndr/ndr_schannel.h"
-#include "../libcli/auth/schannel.h"
-#include "../libcli/auth/spnego.h"
+#include "../librpc/gen_ndr/dcerpc.h"
+#include "../librpc/rpc/rpc_common.h"
#include "dcesrv_auth_generic.h"
#include "rpc_server.h"
#include "rpc_dce.h"
#include "rpc_server/srv_pipe.h"
#include "rpc_server/rpc_contexts.h"
#include "lib/param/param.h"
+#include "librpc/ndr/ndr_table.h"
+#include "auth/gensec/gensec.h"
+#include "librpc/ndr/ndr_dcerpc.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
* the pipe gets closed. JRA.
*/
if (p->fault_state) {
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
+ setup_fault_pdu(p, NT_STATUS(p->fault_state));
return true;
}
bool ok;
DEBUG(3,("check_bind_req for %s\n",
- get_pipe_name_from_syntax(talloc_tos(), abstract)));
+ ndr_interface_name(&abstract->uuid,
+ abstract->if_version)));
/* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
if (rpc_srv_pipe_exists_by_id(abstract) &&
- ndr_syntax_id_equal(transfer, &ndr_transfer_syntax)) {
+ ndr_syntax_id_equal(transfer, &ndr_transfer_syntax_ndr)) {
DEBUG(3, ("check_bind_req: %s -> %s rpc service\n",
rpc_srv_get_pipe_cli_name(abstract),
rpc_srv_get_pipe_srv_name(abstract)));
/**
* Is a named pipe known?
- * @param[in] cli_filename The pipe name requested by the client
+ * @param[in] pipename Just the filename
* @result Do we want to serve this?
*/
-bool is_known_pipename(const char *cli_filename, struct ndr_syntax_id *syntax)
+bool is_known_pipename(const char *pipename, struct ndr_syntax_id *syntax)
{
- const char *pipename = cli_filename;
NTSTATUS status;
- if (strnequal(pipename, "\\PIPE\\", 6)) {
- pipename += 5;
- }
-
- if (*pipename == '\\') {
- pipename += 1;
- }
-
if (lp_disable_spoolss() && strequal(pipename, "spoolss")) {
DEBUG(10, ("refusing spoolss access\n"));
return false;
status = smb_probe_module("rpc", pipename);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("is_known_pipename: %s unknown\n", cli_filename));
+ DEBUG(10, ("is_known_pipename: %s unknown\n", pipename));
return false;
}
DEBUG(10, ("is_known_pipename: %s loaded dynamically\n", pipename));
return false;
}
-/*******************************************************************
- Handle an schannel bind auth.
-*******************************************************************/
-
-static bool pipe_schannel_auth_bind(struct pipes_struct *p,
- TALLOC_CTX *mem_ctx,
- struct dcerpc_auth *auth_info,
- DATA_BLOB *response)
-{
- struct NL_AUTH_MESSAGE neg;
- struct NL_AUTH_MESSAGE reply;
- bool ret;
- NTSTATUS status;
- struct netlogon_creds_CredentialState *creds;
- enum ndr_err_code ndr_err;
- struct schannel_state *schannel_auth;
- struct loadparm_context *lp_ctx;
-
- ndr_err = ndr_pull_struct_blob(
- &auth_info->credentials, mem_ctx, &neg,
- (ndr_pull_flags_fn_t)ndr_pull_NL_AUTH_MESSAGE);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
- return false;
- }
-
- if (DEBUGLEVEL >= 10) {
- NDR_PRINT_DEBUG(NL_AUTH_MESSAGE, &neg);
- }
-
- if (!(neg.Flags & NL_FLAG_OEM_NETBIOS_COMPUTER_NAME)) {
- DEBUG(0,("pipe_schannel_auth_bind: Did not receive netbios computer name\n"));
- return false;
- }
-
- lp_ctx = loadparm_init_s3(p, loadparm_s3_context());
- if (!lp_ctx) {
- DEBUG(0,("pipe_schannel_auth_bind: loadparm_init_s3() failed!\n"));
- return false;
- }
-
- /*
- * The neg.oem_netbios_computer.a key here must match the remote computer name
- * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
- * operations that use credentials.
- */
-
- become_root();
- status = schannel_get_creds_state(p, lp_ctx,
- neg.oem_netbios_computer.a, &creds);
- unbecome_root();
-
- talloc_unlink(p, lp_ctx);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
- return False;
- }
-
- schannel_auth = talloc(p, struct schannel_state);
- if (!schannel_auth) {
- TALLOC_FREE(creds);
- return False;
- }
-
- schannel_auth->state = SCHANNEL_STATE_START;
- schannel_auth->seq_num = 0;
- schannel_auth->initiator = false;
- schannel_auth->creds = creds;
-
- /*
- * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
- * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
- * struct of the person who opened the pipe. I need to test this further. JRA.
- *
- * VL. As we are mapping this to guest set the generic key
- * "SystemLibraryDTC" key here. It's a bit difficult to test against
- * W2k3, as it does not allow schannel binds against SAMR and LSA
- * anymore.
- */
-
- ret = session_info_set_session_key(p->session_info, generic_session_key());
-
- if (!ret) {
- DEBUG(0, ("session_info_set_session_key failed\n"));
- return false;
- }
-
- /*** SCHANNEL verifier ***/
-
- reply.MessageType = NL_NEGOTIATE_RESPONSE;
- reply.Flags = 0;
- reply.Buffer.dummy = 5; /* ??? actually I don't think
- * this has any meaning
- * here - gd */
-
- ndr_err = ndr_push_struct_blob(response, mem_ctx, &reply,
- (ndr_push_flags_fn_t)ndr_push_NL_AUTH_MESSAGE);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(0,("Failed to marshall NL_AUTH_MESSAGE.\n"));
- return false;
- }
-
- if (DEBUGLEVEL >= 10) {
- NDR_PRINT_DEBUG(NL_AUTH_MESSAGE, &reply);
- }
-
- DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
- neg.oem_netbios_domain.a, neg.oem_netbios_computer.a));
-
- /* We're finished with this bind - no more packets. */
- p->auth.auth_ctx = schannel_auth;
- p->auth.auth_type = DCERPC_AUTH_TYPE_SCHANNEL;
-
- p->pipe_bound = True;
-
- return True;
-}
-
/*******************************************************************
Handle an NTLMSSP bind auth.
*******************************************************************/
static bool pipe_auth_generic_bind(struct pipes_struct *p,
- TALLOC_CTX *mem_ctx,
+ struct ncacn_packet *pkt,
struct dcerpc_auth *auth_info,
DATA_BLOB *response)
{
+ TALLOC_CTX *mem_ctx = pkt;
struct gensec_security *gensec_security = NULL;
NTSTATUS status;
p->auth.auth_ctx = gensec_security;
p->auth.auth_type = auth_info->auth_type;
+ if (pkt->pfc_flags & DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN) {
+ p->auth.client_hdr_signing = true;
+ p->auth.hdr_signing = gensec_have_feature(gensec_security,
+ GENSEC_FEATURE_SIGN_PKT_HEADER);
+ }
+
+ if (p->auth.hdr_signing) {
+ gensec_want_feature(gensec_security,
+ GENSEC_FEATURE_SIGN_PKT_HEADER);
+ }
+
return true;
}
static NTSTATUS pipe_auth_verify_final(struct pipes_struct *p)
{
struct gensec_security *gensec_security;
+ bool ok;
- switch (p->auth.auth_type) {
- case DCERPC_AUTH_TYPE_NTLMSSP:
- case DCERPC_AUTH_TYPE_KRB5:
- case DCERPC_AUTH_TYPE_SPNEGO:
- gensec_security = talloc_get_type_abort(p->auth.auth_ctx,
- struct gensec_security);
- if (!pipe_auth_generic_verify_final(p, gensec_security,
- p->auth.auth_level,
- &p->session_info)) {
- return NT_STATUS_ACCESS_DENIED;
- }
- break;
- default:
- DEBUG(0, (__location__ ": incorrect auth type (%u).\n",
- (unsigned int)p->auth.auth_type));
+ if (p->auth.auth_type == DCERPC_AUTH_TYPE_NONE) {
+ p->pipe_bound = true;
+ return NT_STATUS_OK;
+ }
+
+ gensec_security = talloc_get_type(p->auth.auth_ctx,
+ struct gensec_security);
+ if (gensec_security == NULL) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ ok = pipe_auth_generic_verify_final(p, gensec_security,
+ p->auth.auth_level,
+ &p->session_info);
+ if (!ok) {
return NT_STATUS_ACCESS_DENIED;
}
unsigned int auth_type = DCERPC_AUTH_TYPE_NONE;
NTSTATUS status;
struct ndr_syntax_id id;
+ uint8_t pfc_flags = 0;
union dcerpc_payload u;
struct dcerpc_ack_ctx bind_ack_ctx;
DATA_BLOB auth_resp = data_blob_null;
DATA_BLOB auth_blob = data_blob_null;
+ const struct ndr_interface_table *table;
/* No rebinds on a bound pipe - use alter context. */
if (p->pipe_bound) {
* that this is a pipe name we support.
*/
id = pkt->u.bind.ctx_list[0].abstract_syntax;
+
+ table = ndr_table_by_uuid(&id.uuid);
+ if (table == NULL) {
+ DEBUG(0,("unknown interface\n"));
+ return false;
+ }
+
if (rpc_srv_pipe_exists_by_id(&id)) {
DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
rpc_srv_get_pipe_cli_name(&id),
rpc_srv_get_pipe_srv_name(&id)));
} else {
status = smb_probe_module(
- "rpc", get_pipe_name_from_syntax(
- talloc_tos(),
- &id));
+ "rpc", dcerpc_default_transport_endpoint(pkt,
+ NCACN_NP, table));
if (NT_STATUS_IS_ERR(status)) {
DEBUG(3,("api_pipe_bind_req: Unknown rpc service name "
"%s in bind request.\n",
- get_pipe_name_from_syntax(talloc_tos(), &id)));
+ ndr_interface_name(&id.uuid,
+ id.if_version)));
return setup_bind_nak(p, pkt);
}
if (rpc_srv_get_pipe_interface_by_cli_name(
- get_pipe_name_from_syntax(talloc_tos(),
- &id),
+ dcerpc_default_transport_endpoint(pkt,
+ NCACN_NP, table),
&id)) {
DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
rpc_srv_get_pipe_cli_name(&id),
} else {
DEBUG(0, ("module %s doesn't provide functions for "
"pipe %s!\n",
- get_pipe_name_from_syntax(talloc_tos(), &id),
- get_pipe_name_from_syntax(talloc_tos(), &id)));
+ ndr_interface_name(&id.uuid,
+ id.if_version),
+ ndr_interface_name(&id.uuid,
+ id.if_version)));
return setup_bind_nak(p, pkt);
}
}
pkt->u.bind.ctx_list[0].context_id)) {
bind_ack_ctx.result = 0;
- bind_ack_ctx.reason = 0;
+ bind_ack_ctx.reason.value = 0;
bind_ack_ctx.syntax = pkt->u.bind.ctx_list[0].transfer_syntaxes[0];
} else {
p->pipe_bound = False;
/* Rejection reason: abstract syntax not supported */
bind_ack_ctx.result = DCERPC_BIND_PROVIDER_REJECT;
- bind_ack_ctx.reason = DCERPC_BIND_REASON_ASYNTAX;
- bind_ack_ctx.syntax = null_ndr_syntax_id;
+ bind_ack_ctx.reason.value = DCERPC_BIND_REASON_ASYNTAX;
+ bind_ack_ctx.syntax = ndr_syntax_id_null;
}
/*
break;
case DCERPC_AUTH_TYPE_SCHANNEL:
- if (!pipe_schannel_auth_bind(p, pkt,
- &auth_info, &auth_resp)) {
+ if (!pipe_auth_generic_bind(p, pkt,
+ &auth_info, &auth_resp)) {
+ goto err_exit;
+ }
+ if (!session_info_set_session_key(p->session_info, generic_session_key())) {
+ DEBUG(0, ("session_info_set_session_key failed\n"));
goto err_exit;
}
+ p->pipe_bound = true;
break;
case DCERPC_AUTH_TYPE_SPNEGO:
* header and are never sending more than one PDU here.
*/
+ pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST;
+
+ if (p->auth.hdr_signing) {
+ pfc_flags |= DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN;
+ }
+
status = dcerpc_push_ncacn_packet(p->mem_ctx,
DCERPC_PKT_BIND_ACK,
- DCERPC_PFC_FLAG_FIRST |
- DCERPC_PFC_FLAG_LAST,
+ pfc_flags,
auth_resp.length,
pkt->call_id,
&u,
DEBUG(5, ("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
if (pkt->auth_length == 0) {
- DEBUG(0, ("No auth field sent for bind request!\n"));
+ DEBUG(1, ("No auth field sent for bind request!\n"));
goto err;
}
if (pkt->frag_length < RPC_HEADER_LEN
+ DCERPC_AUTH_TRAILER_LENGTH
+ pkt->auth_length) {
- DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len "
+ DEBUG(1,("api_pipe_ntlmssp_auth_process: auth_len "
"%u is too large.\n",
(unsigned int)pkt->auth_length));
goto err;
&pkt->u.auth3.auth_info,
&auth_info, p->endian);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Failed to unmarshall dcerpc_auth.\n"));
+ DEBUG(1, ("Failed to unmarshall dcerpc_auth.\n"));
goto err;
}
*/
if (auth_info.auth_type != p->auth.auth_type) {
- DEBUG(0, ("Auth type mismatch! Client sent %d, "
+ DEBUG(1, ("Auth type mismatch! Client sent %d, "
"but auth was started as type %d!\n",
auth_info.auth_type, p->auth.auth_type));
goto err;
&response);
break;
default:
- DEBUG(0, (__location__ ": incorrect auth type (%u).\n",
+ DEBUG(1, (__location__ ": incorrect auth type (%u).\n",
(unsigned int)auth_info.auth_type));
return false;
}
if (NT_STATUS_EQUAL(status,
NT_STATUS_MORE_PROCESSING_REQUIRED) ||
response.length) {
- DEBUG(0, (__location__ ": This was supposed to be the final "
+ DEBUG(1, (__location__ ": This was supposed to be the final "
"leg, but crypto machinery claims a response is "
"needed, aborting auth!\n"));
data_blob_free(&response);
goto err;
}
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Auth failed (%s)\n", nt_errstr(status)));
+ DEBUG(2, ("Auth failed (%s)\n", nt_errstr(status)));
goto err;
}
/* Now verify auth was indeed successful and extract server info */
status = pipe_auth_verify_final(p);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Auth Verify failed (%s)\n", nt_errstr(status)));
+ DEBUG(2, ("Auth Verify failed (%s)\n", nt_errstr(status)));
goto err;
}
pkt->u.bind.ctx_list[0].context_id)) {
bind_ack_ctx.result = 0;
- bind_ack_ctx.reason = 0;
+ bind_ack_ctx.reason.value = 0;
bind_ack_ctx.syntax = pkt->u.bind.ctx_list[0].transfer_syntaxes[0];
} else {
p->pipe_bound = False;
/* Rejection reason: abstract syntax not supported */
bind_ack_ctx.result = DCERPC_BIND_PROVIDER_REJECT;
- bind_ack_ctx.reason = DCERPC_BIND_REASON_ASYNTAX;
- bind_ack_ctx.syntax = null_ndr_syntax_id;
+ bind_ack_ctx.reason.value = DCERPC_BIND_REASON_ASYNTAX;
+ bind_ack_ctx.syntax = ndr_syntax_id_null;
}
/*
const struct api_struct *api_rpc_cmds, int n_cmds,
const struct ndr_syntax_id *syntax);
+static bool srv_pipe_check_verification_trailer(struct pipes_struct *p,
+ struct ncacn_packet *pkt,
+ struct pipe_rpc_fns *pipe_fns)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct dcerpc_sec_verification_trailer *vt = NULL;
+ const uint32_t bitmask1 =
+ p->auth.client_hdr_signing ? DCERPC_SEC_VT_CLIENT_SUPPORTS_HEADER_SIGNING : 0;
+ const struct dcerpc_sec_vt_pcontext pcontext = {
+ .abstract_syntax = pipe_fns->syntax,
+ .transfer_syntax = ndr_transfer_syntax_ndr,
+ };
+ const struct dcerpc_sec_vt_header2 header2 =
+ dcerpc_sec_vt_header2_from_ncacn_packet(pkt);
+ struct ndr_pull *ndr;
+ enum ndr_err_code ndr_err;
+ bool ret = false;
+
+ ndr = ndr_pull_init_blob(&p->in_data.data, frame);
+ if (ndr == NULL) {
+ goto done;
+ }
+
+ ndr_err = ndr_pop_dcerpc_sec_verification_trailer(ndr, frame, &vt);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ goto done;
+ }
+
+ ret = dcerpc_sec_verification_trailer_check(vt, &bitmask1,
+ &pcontext, &header2);
+done:
+ TALLOC_FREE(frame);
+ return ret;
+}
+
/****************************************************************************
Find the correct RPC function to call for this request.
If the pipe is authenticated then become the correct UNIX user
static bool api_pipe_request(struct pipes_struct *p,
struct ncacn_packet *pkt)
{
+ TALLOC_CTX *frame = talloc_stackframe();
bool ret = False;
struct pipe_rpc_fns *pipe_fns;
if (!p->pipe_bound) {
DEBUG(1, ("Pipe not bound!\n"));
data_blob_free(&p->out_data.rdata);
- return false;
- }
-
- if (!become_authenticated_pipe_user(p->session_info)) {
- DEBUG(1, ("Failed to become pipe user!\n"));
- data_blob_free(&p->out_data.rdata);
+ TALLOC_FREE(frame);
return false;
}
/* get the set of RPC functions for this context */
-
pipe_fns = find_pipe_fns_by_context(p->contexts,
pkt->u.request.context_id);
-
- if ( pipe_fns ) {
- TALLOC_CTX *frame = talloc_stackframe();
-
- DEBUG(5, ("Requested %s rpc service\n",
- get_pipe_name_from_syntax(talloc_tos(), &pipe_fns->syntax)));
-
- ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds,
- &pipe_fns->syntax);
-
- TALLOC_FREE(frame);
- }
- else {
+ if (pipe_fns == NULL) {
DEBUG(0, ("No rpc function table associated with context "
"[%d]\n",
pkt->u.request.context_id));
+ data_blob_free(&p->out_data.rdata);
+ TALLOC_FREE(frame);
+ return false;
}
+ if (!srv_pipe_check_verification_trailer(p, pkt, pipe_fns)) {
+ DEBUG(1, ("srv_pipe_check_verification_trailer: failed\n"));
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_ACCESS_DENIED));
+ data_blob_free(&p->out_data.rdata);
+ TALLOC_FREE(frame);
+ return true;
+ }
+
+ if (!become_authenticated_pipe_user(p->session_info)) {
+ DEBUG(1, ("Failed to become pipe user!\n"));
+ data_blob_free(&p->out_data.rdata);
+ TALLOC_FREE(frame);
+ return false;
+ }
+
+ DEBUG(5, ("Requested %s rpc service\n",
+ ndr_interface_name(&pipe_fns->syntax.uuid,
+ pipe_fns->syntax.if_version)));
+
+ ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds,
+ &pipe_fns->syntax);
unbecome_authenticated_pipe_user();
+ TALLOC_FREE(frame);
return ret;
}
{
int fn_num;
uint32_t offset1;
+ const struct ndr_interface_table *table;
/* interpret the command */
DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
- get_pipe_name_from_syntax(talloc_tos(), syntax),
+ ndr_interface_name(&syntax->uuid, syntax->if_version),
pkt->u.request.opnum));
+ table = ndr_table_by_uuid(&syntax->uuid);
+ if (table == NULL) {
+ DEBUG(0,("unknown interface\n"));
+ return false;
+ }
+
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "in_%s",
- get_pipe_name_from_syntax(talloc_tos(), syntax));
+ dcerpc_default_transport_endpoint(pkt, NCACN_NP, table));
dump_pdu_region(name, pkt->u.request.opnum,
&p->in_data.data, 0,
p->in_data.data.length);
/* do the actual command */
if(!api_rpc_cmds[fn_num].fn(p)) {
DEBUG(0,("api_rpcTNP: %s: %s failed.\n",
- get_pipe_name_from_syntax(talloc_tos(), syntax),
+ ndr_interface_name(&syntax->uuid, syntax->if_version),
api_rpc_cmds[fn_num].name));
data_blob_free(&p->out_data.rdata);
return False;
}
- if (p->bad_handle_fault_state) {
- DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
- p->bad_handle_fault_state = False;
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
- return True;
- }
-
- if (p->rng_fault_state) {
- DEBUG(4, ("api_rpcTNP: rng fault return\n"));
- p->rng_fault_state = False;
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- return True;
+ if (p->fault_state) {
+ DEBUG(4,("api_rpcTNP: fault(%d) return.\n", p->fault_state));
+ setup_fault_pdu(p, NT_STATUS(p->fault_state));
+ p->fault_state = 0;
+ return true;
}
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "out_%s",
- get_pipe_name_from_syntax(talloc_tos(), syntax));
+ dcerpc_default_transport_endpoint(pkt, NCACN_NP, table));
dump_pdu_region(name, pkt->u.request.opnum,
&p->out_data.rdata, offset1,
p->out_data.rdata.length);
}
DEBUG(5,("api_rpcTNP: called %s successfully\n",
- get_pipe_name_from_syntax(talloc_tos(), syntax)));
+ ndr_interface_name(&syntax->uuid, syntax->if_version)));
/* Check for buffer underflow in rpc parsing */
if ((DEBUGLEVEL >= 10) &&
data_blob_free(&p->in_data.data);
p->in_data.pdu_needed_len = 0;
p->in_data.pdu.length = 0;
- p->fault_state = True;
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
DEBUG(10, ("Setting fault state\n"));
}
{
NTSTATUS status;
DATA_BLOB data;
+ struct dcerpc_sec_vt_header2 hdr2;
if (!p->pipe_bound) {
DEBUG(0,("process_request_pdu: rpc request with no bind.\n"));
return False;
}
+ hdr2 = dcerpc_sec_vt_header2_from_ncacn_packet(pkt);
+ if (pkt->pfc_flags & DCERPC_PFC_FLAG_FIRST) {
+ p->header2 = hdr2;
+ } else {
+ if (!dcerpc_sec_vt_header2_equal(&hdr2, &p->header2)) {
+ set_incoming_fault(p);
+ return false;
+ }
+ }
+
/* Store the opnum */
p->opnum = pkt->u.request.opnum;
}
}
- if (pkt->pfc_flags & DCERPC_PFC_FLAG_LAST) {
- bool ret = False;
- /*
- * Ok - we finally have a complete RPC stream.
- * Call the rpc command to process it.
- */
-
- /*
- * Process the complete data stream here.
- */
- if (pipe_init_outgoing_data(p)) {
- ret = api_pipe_request(p, pkt);
- }
-
- return ret;
- }
-
- return True;
-}
-
-/****************************************************************************
- Processes a finished PDU stored in p->in_data.pdu.
-****************************************************************************/
-
-void process_complete_pdu(struct pipes_struct *p)
-{
- struct ncacn_packet *pkt = NULL;
- NTSTATUS status;
- bool reply = False;
-
- if(p->fault_state) {
- DEBUG(10,("RPC connection in fault state.\n"));
- goto done;
- }
-
- pkt = talloc(p->mem_ctx, struct ncacn_packet);
- if (!pkt) {
- DEBUG(0, ("Out of memory!\n"));
- goto done;
+ if (!(pkt->pfc_flags & DCERPC_PFC_FLAG_LAST)) {
+ return true;
}
/*
- * Ensure we're using the corrent endianness for both the
- * RPC header flags and the raw data we will be reading from.
+ * Ok - we finally have a complete RPC stream.
+ * Call the rpc command to process it.
*/
- if (dcerpc_get_endian_flag(&p->in_data.pdu) & DCERPC_DREP_LE) {
- p->endian = RPC_LITTLE_ENDIAN;
- } else {
- p->endian = RPC_BIG_ENDIAN;
- }
- DEBUG(10, ("PDU is in %s Endian format!\n", p->endian?"Big":"Little"));
- status = dcerpc_pull_ncacn_packet(pkt, &p->in_data.pdu,
- pkt, p->endian);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Failed to unmarshal rpc packet: %s!\n",
- nt_errstr(status)));
- goto done;
- }
+ return api_pipe_request(p, pkt);
+}
+
+void process_complete_pdu(struct pipes_struct *p, struct ncacn_packet *pkt)
+{
+ bool reply = false;
/* Store the call_id */
p->call_id = pkt->call_id;
DEBUG(10, ("Processing packet type %u\n", (unsigned int)pkt->ptype));
+ if (!pipe_init_outgoing_data(p)) {
+ goto done;
+ }
+
switch (pkt->ptype) {
case DCERPC_PKT_REQUEST:
reply = process_request_pdu(p, pkt);
/*
* We assume that a pipe bind is only in one pdu.
*/
- if (pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_req(p, pkt);
- }
+ reply = api_pipe_bind_req(p, pkt);
break;
case DCERPC_PKT_BIND_ACK:
/*
* We assume that a pipe bind is only in one pdu.
*/
- if (pipe_init_outgoing_data(p)) {
- reply = api_pipe_alter_context(p, pkt);
- }
+ reply = api_pipe_alter_context(p, pkt);
break;
case DCERPC_PKT_ALTER_RESP:
/*
* The third packet in an auth exchange.
*/
- if (pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_auth3(p, pkt);
- }
+ reply = api_pipe_bind_auth3(p, pkt);
break;
case DCERPC_PKT_SHUTDOWN:
DEBUG(3,("DCE/RPC fault sent!"));
set_incoming_fault(p);
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- TALLOC_FREE(pkt);
- } else {
- /*
- * Reset the lengths. We're ready for a new pdu.
- */
- TALLOC_FREE(p->in_data.pdu.data);
- p->in_data.pdu_needed_len = 0;
- p->in_data.pdu.length = 0;
}
-
- TALLOC_FREE(pkt);
+ /* pkt and p->in_data.pdu.data freed by caller */
}
git.samba.org / obnox / samba / samba-obnox.git / blobdiff