diff options
| -rw-r--r-- | source3/rpc_server/dcesrv_auth_generic.c | 145 | ||||
| -rw-r--r-- | source3/rpc_server/dcesrv_auth_generic.h | 42 | ||||
| -rw-r--r-- | source3/rpc_server/rpc_server.c | 248 | ||||
| -rw-r--r-- | source3/rpc_server/rpc_server.h | 1 | ||||
| -rw-r--r-- | source3/rpc_server/srv_pipe.c | 1828 | ||||
| -rw-r--r-- | source3/rpc_server/srv_pipe.h | 5 | ||||
| -rw-r--r-- | source3/rpc_server/wscript_build | 5 |
7 files changed, 0 insertions, 2274 deletions
diff --git a/source3/rpc_server/dcesrv_auth_generic.c b/source3/rpc_server/dcesrv_auth_generic.c deleted file mode 100644 index 54e6fefc98f..00000000000 --- a/source3/rpc_server/dcesrv_auth_generic.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * NTLMSSP Acceptor - * DCERPC Server functions - * Copyright (C) Simo Sorce 2010. - * Copyright (C) Andrew Bartlett 2011. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - - -#include "includes.h" -#include "rpc_server/dcesrv_auth_generic.h" -#include "auth.h" -#include "auth/gensec/gensec.h" - -#undef DBGC_CLASS -#define DBGC_CLASS DBGC_RPC_SRV - -static NTSTATUS auth_generic_server_authtype_start_as_root(TALLOC_CTX *mem_ctx, - uint8_t auth_type, uint8_t auth_level, - const struct tsocket_address *remote_address, - const struct tsocket_address *local_address, - const char *service_description, - struct gensec_security **ctx) -{ - struct gensec_security *gensec_security = NULL; - NTSTATUS status; - - status = auth_generic_prepare(talloc_tos(), - remote_address, - local_address, - service_description, - &gensec_security); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, (__location__ ": auth_generic_prepare failed: %s\n", - nt_errstr(status))); - return status; - } - - status = gensec_start_mech_by_authtype(gensec_security, auth_type, auth_level); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, (__location__ ": auth_generic_start failed: %s\n", - nt_errstr(status))); - TALLOC_FREE(gensec_security); - return status; - } - - /* steal gensec context to the caller */ - *ctx = talloc_move(mem_ctx, &gensec_security); - return status; -} - -NTSTATUS auth_generic_server_authtype_start(TALLOC_CTX *mem_ctx, - uint8_t auth_type, uint8_t auth_level, - const struct tsocket_address *remote_address, - const struct tsocket_address *local_address, - const char *service_description, - struct gensec_security **ctx) -{ - NTSTATUS status; - become_root(); - - /* this has to be done as root in order to create the messaging socket */ - status = auth_generic_server_authtype_start_as_root(mem_ctx, - auth_type, auth_level, - remote_address, - local_address, - service_description, - ctx); - unbecome_root(); - return status; -} - -NTSTATUS auth_generic_server_step(struct gensec_security *gensec_security, - TALLOC_CTX *mem_ctx, - DATA_BLOB *token_in, - DATA_BLOB *token_out) -{ - NTSTATUS status; - - if (gensec_security == NULL) { - return NT_STATUS_INTERNAL_ERROR; - } - - /* this has to be done as root in order to verify the password */ - become_root(); - status = gensec_update(gensec_security, mem_ctx, *token_in, token_out); - unbecome_root(); - - return status; -} - -NTSTATUS auth_generic_server_check_flags(struct gensec_security *gensec_security, - bool do_sign, bool do_seal) -{ - if (do_sign && !gensec_have_feature(gensec_security, GENSEC_FEATURE_SIGN)) { - DEBUG(1, (__location__ "Integrity was requested but client " - "failed to negotiate signing.\n")); - return NT_STATUS_ACCESS_DENIED; - } - - if (do_seal && !gensec_have_feature(gensec_security, GENSEC_FEATURE_SEAL)) { - DEBUG(1, (__location__ "Privacy was requested but client " - "failed to negotiate sealing.\n")); - return NT_STATUS_ACCESS_DENIED; - } - - return NT_STATUS_OK; -} - -NTSTATUS auth_generic_server_get_user_info(struct gensec_security *gensec_security, - TALLOC_CTX *mem_ctx, - struct auth_session_info **session_info) -{ - NTSTATUS status; - - /* this has to be done as root in order to get to the - * messaging sockets for IDMAP and privilege.ldb in the AD - * DC */ - become_root(); - status = gensec_session_info(gensec_security, mem_ctx, session_info); - unbecome_root(); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, (__location__ ": Failed to get authenticated user " - "info: %s\n", nt_errstr(status))); - return status; - } - - DEBUG(5, (__location__ "OK: user: %s domain: %s\n", - (*session_info)->info->account_name, - (*session_info)->info->domain_name)); - - return NT_STATUS_OK; -} diff --git a/source3/rpc_server/dcesrv_auth_generic.h b/source3/rpc_server/dcesrv_auth_generic.h deleted file mode 100644 index f5e186bdd15..00000000000 --- a/source3/rpc_server/dcesrv_auth_generic.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * NTLMSSP Acceptor - * DCERPC Server functions - * Copyright (C) Simo Sorce 2010. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef _DCESRV_NTLMSSP_H_ -#define _DCESRV_NTLMSSP_H_ - -struct gensec_security; - -NTSTATUS auth_generic_server_authtype_start(TALLOC_CTX *mem_ctx, - uint8_t auth_type, uint8_t auth_level, - const struct tsocket_address *remote_address, - const struct tsocket_address *local_address, - const char *service_description, - struct gensec_security **ctx); - -NTSTATUS auth_generic_server_step(struct gensec_security *ctx, - TALLOC_CTX *mem_ctx, - DATA_BLOB *token_in, - DATA_BLOB *token_out); -NTSTATUS auth_generic_server_check_flags(struct gensec_security *ctx, - bool do_sign, bool do_seal); -NTSTATUS auth_generic_server_get_user_info(struct gensec_security *ctx, - TALLOC_CTX *mem_ctx, - struct auth_session_info **session_info); - -#endif /* _DCESRV_NTLMSSP_H_ */ diff --git a/source3/rpc_server/rpc_server.c b/source3/rpc_server/rpc_server.c index 8789b998a34..60175575018 100644 --- a/source3/rpc_server/rpc_server.c +++ b/source3/rpc_server/rpc_server.c @@ -34,7 +34,6 @@ #include "rpc_server/rpc_ncacn_np.h" #include "rpc_server/srv_pipe_hnd.h" #include "rpc_server/srv_pipe.h" -#include "librpc/gen_ndr/ndr_dcerpc.h" #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV @@ -754,7 +753,6 @@ NTSTATUS dcerpc_ncacn_conn_init(TALLOC_CTX *mem_ctx, return NT_STATUS_OK; } -static void dcerpc_ncacn_packet_done(struct tevent_req *subreq); static void dcesrv_ncacn_np_accept_done(struct tevent_req *subreq); static void dcesrv_ncacn_accept_step2(struct dcerpc_ncacn_conn *ncacn_conn); @@ -1060,252 +1058,6 @@ static void dcesrv_ncacn_accept_step2(struct dcerpc_ncacn_conn *ncacn_conn) return; } -void dcerpc_ncacn_packet_process(struct tevent_req *subreq) -{ - struct dcerpc_ncacn_conn *ncacn_conn = - tevent_req_callback_data(subreq, struct dcerpc_ncacn_conn); - - struct _output_data *out = &ncacn_conn->p->out_data; - DATA_BLOB recv_buffer = data_blob_null; - struct ncacn_packet *pkt; - uint32_t to_send; - size_t i; - NTSTATUS status; - bool ok; - enum dcerpc_transport_t transport = dcerpc_binding_get_transport( - ncacn_conn->endpoint->ep_description); - - status = dcerpc_read_ncacn_packet_recv(subreq, ncacn_conn, &pkt, &recv_buffer); - TALLOC_FREE(subreq); - if (!NT_STATUS_IS_OK(status)) { - goto fail; - } - - /* dcerpc_read_ncacn_packet_recv() returns a full PDU */ - ncacn_conn->p->in_data.pdu_needed_len = 0; - ncacn_conn->p->in_data.pdu = recv_buffer; - if (dcerpc_get_endian_flag(&recv_buffer) & DCERPC_DREP_LE) { - ncacn_conn->p->endian = RPC_LITTLE_ENDIAN; - } else { - ncacn_conn->p->endian = RPC_BIG_ENDIAN; - } - DEBUG(10, ("PDU is in %s Endian format!\n", - ncacn_conn->p->endian ? "Big" : "Little")); - if (DEBUGLEVEL >= 10) { - NDR_PRINT_DEBUG(ncacn_packet, pkt); - } - process_complete_pdu(ncacn_conn->p, pkt); - - /* reset pipe state and free PDU */ - ncacn_conn->p->in_data.pdu.length = 0; - talloc_free(recv_buffer.data); - talloc_free(pkt); - - /* - * This is needed because of the way DCERPC binds work in the RPC - * marshalling code - */ - to_send = out->frag.length - out->current_pdu_sent; - if (to_send > 0) { - - DEBUG(10, ("Current_pdu_len = %u, " - "current_pdu_sent = %u " - "Returning %u bytes\n", - (unsigned int)out->frag.length, - (unsigned int)out->current_pdu_sent, - (unsigned int)to_send)); - - ncacn_conn->iov = talloc_zero(ncacn_conn, struct iovec); - if (ncacn_conn->iov == NULL) { - status = NT_STATUS_NO_MEMORY; - DEBUG(3, ("Out of memory!\n")); - goto fail; - } - ncacn_conn->count = 1; - - ncacn_conn->iov[0].iov_base = out->frag.data - + out->current_pdu_sent; - ncacn_conn->iov[0].iov_len = to_send; - - out->current_pdu_sent += to_send; - } - - /* - * This condition is false for bind packets, or when we haven't yet got - * a full request, and need to wait for more data from the client - */ - while (out->data_sent_length < out->rdata.length) { - ok = create_next_pdu(ncacn_conn->p); - if (!ok) { - DEBUG(3, ("Failed to create next PDU!\n")); - status = NT_STATUS_UNEXPECTED_IO_ERROR; - goto fail; - } - - ncacn_conn->iov = talloc_realloc(ncacn_conn, - ncacn_conn->iov, - struct iovec, - ncacn_conn->count + 1); - if (ncacn_conn->iov == NULL) { - DEBUG(3, ("Out of memory!\n")); - status = NT_STATUS_NO_MEMORY; - goto fail; - } - - ncacn_conn->iov[ncacn_conn->count].iov_base = out->frag.data; - ncacn_conn->iov[ncacn_conn->count].iov_len = out->frag.length; - - DEBUG(10, ("PDU number: %d, PDU Length: %u\n", - (unsigned int) ncacn_conn->count, - (unsigned int) ncacn_conn->iov[ncacn_conn->count].iov_len)); - dump_data(11, (const uint8_t *) ncacn_conn->iov[ncacn_conn->count].iov_base, - ncacn_conn->iov[ncacn_conn->count].iov_len); - ncacn_conn->count++; - } - - /* - * We still don't have a complete request, go back and wait for more - * data. - */ - if (ncacn_conn->count == 0) { - /* Wait for the next packet */ - subreq = dcerpc_read_ncacn_packet_send(ncacn_conn, - ncacn_conn->ev_ctx, - ncacn_conn->tstream); - if (subreq == NULL) { - DEBUG(2, ("Failed to start receiving packets\n")); - status = NT_STATUS_NO_MEMORY; - goto fail; - } - tevent_req_set_callback(subreq, dcerpc_ncacn_packet_process, ncacn_conn); - return; - } - - switch (transport) { - case NCACN_NP: - /* If sending packets over named pipe proxy we need to send - * each fragment on its own to be a message - */ - DBG_DEBUG("Sending %u fragments in a total of %u bytes\n", - (unsigned int)ncacn_conn->count, - (unsigned int)ncacn_conn->p->out_data.data_sent_length); - for (i = 0; i < ncacn_conn->count; i++) { - DBG_DEBUG("Sending PDU number: %d, PDU Length: %u\n", - (unsigned int)i, - (unsigned int)ncacn_conn->iov[i].iov_len); - dump_data(11, (const uint8_t *)ncacn_conn->iov[i].iov_base, - ncacn_conn->iov[i].iov_len); - - subreq = tstream_writev_queue_send(ncacn_conn, - ncacn_conn->ev_ctx, - ncacn_conn->tstream, - ncacn_conn->send_queue, - (ncacn_conn->iov + i), - 1); - if (subreq == NULL) { - DBG_ERR("Failed to send packet\n"); - status = NT_STATUS_NO_MEMORY; - goto fail; - } - tevent_req_set_callback(subreq, - dcerpc_ncacn_packet_done, - ncacn_conn); - } - break; - default: - DBG_DEBUG("Sending a total of %u bytes\n", - (unsigned int)ncacn_conn->p->out_data.data_sent_length); - - subreq = tstream_writev_queue_send(ncacn_conn, - ncacn_conn->ev_ctx, - ncacn_conn->tstream, - ncacn_conn->send_queue, - ncacn_conn->iov, - ncacn_conn->count); - if (subreq == NULL) { - DBG_ERR("Failed to send packet\n"); - status = NT_STATUS_NO_MEMORY; - goto fail; - } - - tevent_req_set_callback(subreq, - dcerpc_ncacn_packet_done, - ncacn_conn); - break; - } - - return; - -fail: - DEBUG(3, ("Terminating client(%s) connection! - '%s'\n", - ncacn_conn->remote_client_name, nt_errstr(status))); - - /* Terminate client connection */ - talloc_free(ncacn_conn); - return; -} - -static void dcerpc_ncacn_packet_done(struct tevent_req *subreq) -{ - struct dcerpc_ncacn_conn *ncacn_conn = - tevent_req_callback_data(subreq, struct dcerpc_ncacn_conn); - NTSTATUS status = NT_STATUS_OK; - int sys_errno; - int rc; - enum dcerpc_transport_t transport = dcerpc_binding_get_transport( - ncacn_conn->endpoint->ep_description); - - rc = tstream_writev_queue_recv(subreq, &sys_errno); - TALLOC_FREE(subreq); - if (rc < 0) { - DEBUG(2, ("Writev failed!\n")); - status = map_nt_error_from_unix(sys_errno); - goto fail; - } - - if (transport == NCACN_NP && - tevent_queue_length(ncacn_conn->send_queue) > 0) { - /* More fragments to send before reading a new packet */ - return; - } - - if (ncacn_conn->p->fault_state != 0) { - DEBUG(2, ("Disconnect after fault\n")); - sys_errno = EINVAL; - goto fail; - } - - /* clear out any data that may have been left around */ - ncacn_conn->count = 0; - TALLOC_FREE(ncacn_conn->iov); - data_blob_free(&ncacn_conn->p->in_data.data); - data_blob_free(&ncacn_conn->p->out_data.frag); - data_blob_free(&ncacn_conn->p->out_data.rdata); - - talloc_free_children(ncacn_conn->p->mem_ctx); - - /* Wait for the next packet */ - subreq = dcerpc_read_ncacn_packet_send(ncacn_conn, - ncacn_conn->ev_ctx, - ncacn_conn->tstream); - if (subreq == NULL) { - DEBUG(2, ("Failed to start receiving packets\n")); - status = NT_STATUS_NO_MEMORY; - goto fail; - } - - tevent_req_set_callback(subreq, dcerpc_ncacn_packet_process, ncacn_conn); - return; - -fail: - DEBUG(3, ("Terminating client(%s) connection! - '%s'\n", - ncacn_conn->remote_client_name, nt_errstr(status))); - - /* Terminate client connection */ - talloc_free(ncacn_conn); - return; -} - NTSTATUS dcesrv_auth_gensec_prepare(TALLOC_CTX *mem_ctx, struct dcesrv_call_state *call, struct gensec_security **out) diff --git a/source3/rpc_server/rpc_server.h b/source3/rpc_server/rpc_server.h index 99d595070a9..3d93da28cfb 100644 --- a/source3/rpc_server/rpc_server.h +++ b/source3/rpc_server/rpc_server.h @@ -112,7 +112,6 @@ void dcerpc_ncacn_accept(struct tevent_context *ev_ctx, int s, dcerpc_ncacn_termination_fn termination_fn, void *termination_data); -void dcerpc_ncacn_packet_process(struct tevent_req *subreq); NTSTATUS dcesrv_auth_gensec_prepare(TALLOC_CTX *mem_ctx, struct dcesrv_call_state *call, diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c index 446ac95e5cc..1a1a5c90946 100644 --- a/source3/rpc_server/srv_pipe.c +++ b/source3/rpc_server/srv_pipe.c @@ -28,450 +28,12 @@ */ #include "includes.h" -#include "system/filesys.h" -#include "srv_pipe_internal.h" -#include "../librpc/gen_ndr/ndr_dcerpc.h" -#include "../librpc/rpc/rpc_common.h" -#include "dcesrv_auth_generic.h" #include "rpc_server.h" -#include "rpc_dce.h" -#include "smbd/smbd.h" -#include "auth.h" -#include "ntdomain.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" -#include "lib/tsocket/tsocket.h" -#include "../librpc/gen_ndr/ndr_samr.h" -#include "../librpc/gen_ndr/ndr_lsa.h" -#include "../librpc/gen_ndr/ndr_netlogon.h" -#include "../librpc/gen_ndr/ndr_epmapper.h" -#include "../librpc/gen_ndr/ndr_echo.h" -#include "../librpc/gen_ndr/ndr_winspool.h" #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV -static NTSTATUS pipe_auth_verify_final(struct pipes_struct *p); - -/** - * Dump everything from the start of the end up of the provided data - * into a file, but only at debug level >= 50 - **/ -static void dump_pdu_region(const char *name, int v, - DATA_BLOB *data, size_t start, size_t end) -{ - int fd, i; - char *fname = NULL; - ssize_t sz; - - if (DEBUGLEVEL < 50) return; - - if (start > data->length || end > data->length || start > end) return; - - for (i = 1; i < 100; i++) { - if (v != -1) { - fname = talloc_asprintf(talloc_tos(), - "/tmp/%s_%d.%d.prs", - name, v, i); - } else { - fname = talloc_asprintf(talloc_tos(), - "/tmp/%s_%d.prs", - name, i); - } - if (!fname) { - return; - } - fd = open(fname, O_WRONLY|O_CREAT|O_EXCL, 0644); - if (fd != -1 || errno != EEXIST) break; - } - if (fd != -1) { - sz = write(fd, data->data + start, end - start); - i = close(fd); - if ((sz != end - start) || (i != 0) ) { - DEBUG(0, ("Error writing/closing %s: %ld!=%ld %d\n", - fname, (unsigned long)sz, - (unsigned long)end - start, i)); - } else { - DEBUG(0,("created %s\n", fname)); - } - } - TALLOC_FREE(fname); -} - -static DATA_BLOB generic_session_key(void) -{ - return data_blob_const("SystemLibraryDTC", 16); -} - -/******************************************************************* - Generate the next PDU to be returned from the data. -********************************************************************/ - -static NTSTATUS create_next_packet(TALLOC_CTX *mem_ctx, - struct pipe_auth_data *auth, - uint32_t call_id, - DATA_BLOB *rdata, - size_t data_sent_length, - DATA_BLOB *frag, - size_t *pdu_size) -{ - union dcerpc_payload u; - uint8_t pfc_flags; - size_t data_left; - size_t data_to_send; - size_t frag_len; - size_t pad_len = 0; - size_t auth_len = 0; - NTSTATUS status; - - ZERO_STRUCT(u.response); - - /* Set up rpc packet pfc flags. */ - if (data_sent_length == 0) { - pfc_flags = DCERPC_PFC_FLAG_FIRST; - } else { - pfc_flags = 0; - } - - /* Work out how much we can fit in a single PDU. */ - data_left = rdata->length - data_sent_length; - - /* Ensure there really is data left to send. */ - if (!data_left) { - DEBUG(0, ("No data left to send !\n")); - return NT_STATUS_BUFFER_TOO_SMALL; - } - - status = dcerpc_guess_sizes(auth, - DCERPC_RESPONSE_LENGTH, - data_left, - RPC_MAX_PDU_FRAG_LEN, - &data_to_send, &frag_len, - &auth_len, &pad_len); - if (!NT_STATUS_IS_OK(status)) { - return status; - } - - /* Set up the alloc hint. This should be the data left to send. */ - u.response.alloc_hint = data_left; - - /* Work out if this PDU will be the last. */ - if (data_sent_length + data_to_send >= rdata->length) { - pfc_flags |= DCERPC_PFC_FLAG_LAST; - } - - /* Prepare data to be NDR encoded. */ - u.response.stub_and_verifier = - data_blob_const(rdata->data + data_sent_length, data_to_send); - - /* Store the packet in the data stream. */ - status = dcerpc_push_ncacn_packet(mem_ctx, DCERPC_PKT_RESPONSE, - pfc_flags, auth_len, call_id, - &u, frag); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Failed to marshall RPC Packet.\n")); - return status; - } - - if (auth_len) { - /* Set the proper length on the pdu, including padding. - * Only needed if an auth trailer will be appended. */ - dcerpc_set_frag_length(frag, frag->length - + pad_len - + DCERPC_AUTH_TRAILER_LENGTH - + auth_len); - } - - if (auth_len) { - status = dcerpc_add_auth_footer(auth, pad_len, frag); - if (!NT_STATUS_IS_OK(status)) { - data_blob_free(frag); - return status; - } - } - - *pdu_size = data_to_send; - return NT_STATUS_OK; -} - -/******************************************************************* - Generate the next PDU to be returned from the data in p->rdata. -********************************************************************/ - -bool create_next_pdu(struct pipes_struct *p) -{ - size_t pdu_size = 0; - NTSTATUS status; - - /* - * If we're in the fault state, keep returning fault PDU's until - * the pipe gets closed. JRA. - */ - if (p->fault_state) { - setup_fault_pdu(p, NT_STATUS(p->fault_state)); - return true; - } - - status = create_next_packet(p->mem_ctx, &p->auth, - p->call_id, &p->out_data.rdata, - p->out_data.data_sent_length, - &p->out_data.frag, &pdu_size); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Failed to create packet with error %s, " - "(auth level %u / type %u)\n", - nt_errstr(status), - (unsigned int)p->auth.auth_level, - (unsigned int)p->auth.auth_type)); - return false; - } - - /* Setup the counts for this PDU. */ - p->out_data.data_sent_length += pdu_size; - p->out_data.current_pdu_sent = 0; - return true; -} - - -static bool pipe_init_outgoing_data(struct pipes_struct *p); - -/******************************************************************* - Marshall a bind_nak pdu. -*******************************************************************/ - -static bool setup_bind_nak(struct pipes_struct *p, struct ncacn_packet *pkt) -{ - NTSTATUS status; - union dcerpc_payload u; - - /* Free any memory in the current return data buffer. */ - pipe_init_outgoing_data(p); - - /* - * Initialize a bind_nak header. - */ - - ZERO_STRUCT(u); - - u.bind_nak.reject_reason = 0; - - /* - * Marshall directly into the outgoing PDU space. We - * must do this as we need to set to the bind response - * header and are never sending more than one PDU here. - */ - - status = dcerpc_push_ncacn_packet(p->mem_ctx, - DCERPC_PKT_BIND_NAK, - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST, - 0, - pkt->call_id, - &u, - &p->out_data.frag); - if (!NT_STATUS_IS_OK(status)) { - return False; - } - - p->out_data.data_sent_length = 0; - p->out_data.current_pdu_sent = 0; - - set_incoming_fault(p); - TALLOC_FREE(p->auth.auth_ctx); - p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE; - p->auth.auth_type = DCERPC_AUTH_TYPE_NONE; - p->pipe_bound = False; - p->allow_bind = false; - p->allow_alter = false; - p->allow_auth3 = false; - - return True; -} - -/******************************************************************* - Marshall a fault pdu. -*******************************************************************/ - -bool setup_fault_pdu(struct pipes_struct *p, NTSTATUS fault_status) -{ - NTSTATUS status; - union dcerpc_payload u; - - /* Free any memory in the current return data buffer. */ - pipe_init_outgoing_data(p); - - /* - * Initialize a fault header. - */ - - ZERO_STRUCT(u); - - u.fault.status = NT_STATUS_V(fault_status); - - /* - * Marshall directly into the outgoing PDU space. We - * must do this as we need to set to the bind response - * header and are never sending more than one PDU here. - */ - - status = dcerpc_push_ncacn_packet(p->mem_ctx, - DCERPC_PKT_FAULT, - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST | - DCERPC_PFC_FLAG_DID_NOT_EXECUTE, - 0, - p->call_id, - &u, - &p->out_data.frag); - if (!NT_STATUS_IS_OK(status)) { - return False; - } - - p->out_data.data_sent_length = 0; - p->out_data.current_pdu_sent = 0; - - return True; -} - -/******************************************************************* - Ensure a bind request has the correct abstract & transfer interface. - Used to reject unknown binds from Win2k. -*******************************************************************/ - -static bool check_bind_req(struct pipes_struct *p, - struct ndr_syntax_id* abstract, - struct ndr_syntax_id* transfer, - uint32_t context_id) -{ - struct pipe_rpc_fns *context_fns; - bool ok; - const char *interface_name = NULL; - - DEBUG(3,("check_bind_req for %s context_id=%u\n", - ndr_interface_name(&abstract->uuid, - abstract->if_version), - (unsigned)context_id)); - - ok = ndr_syntax_id_equal(transfer, &ndr_transfer_syntax_ndr); - if (!ok) { - DEBUG(1,("check_bind_req unknown transfer syntax for " - "%s context_id=%u\n", - ndr_interface_name(&abstract->uuid, - abstract->if_version), - (unsigned)context_id)); - return false; - } - - for (context_fns = p->contexts; - context_fns != NULL; - context_fns = context_fns->next) - { - if (context_fns->context_id != context_id) { - continue; - } - - ok = ndr_syntax_id_equal(&context_fns->syntax, - abstract); - if (ok) { - return true; - } - - DEBUG(1,("check_bind_req: changing abstract syntax for " - "%s context_id=%u into %s not supported\n", - ndr_interface_name(&context_fns->syntax.uuid, - context_fns->syntax.if_version), - (unsigned)context_id, - ndr_interface_name(&abstract->uuid, - abstract->if_version))); - return false; - } - - /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */ - if (!rpc_srv_pipe_exists_by_id(abstract)) { - return false; - } - - DEBUG(3, ("check_bind_req: %s -> %s rpc service\n", - rpc_srv_get_pipe_cli_name(abstract), - rpc_srv_get_pipe_srv_name(abstract))); - - ok = init_pipe_handles(p, abstract); - if (!ok) { - DEBUG(1, ("Failed to init pipe handles!\n")); - return false; - } - - context_fns = talloc_zero(p, struct pipe_rpc_fns); - if (context_fns == NULL) { - DEBUG(0,("check_bind_req: talloc() failed!\n")); - return false; - } - - interface_name = ndr_interface_name(&abstract->uuid, - abstract->if_version); - SMB_ASSERT(interface_name != NULL); - - context_fns->next = context_fns->prev = NULL; - context_fns->n_cmds = rpc_srv_get_pipe_num_cmds(abstract); - context_fns->cmds = rpc_srv_get_pipe_cmds(abstract); - context_fns->context_id = context_id; - context_fns->syntax = *abstract; - - context_fns->allow_connect = lp_allow_dcerpc_auth_level_connect(); - /* - * for the samr, lsarpc and netlogon interfaces we don't allow "connect" - * auth_level by default. - */ - ok = ndr_syntax_id_equal(abstract, &ndr_table_samr.syntax_id); - if (ok) { - context_fns->allow_connect = false; - } - ok = ndr_syntax_id_equal(abstract, &ndr_table_lsarpc.syntax_id); - if (ok) { - context_fns->allow_connect = false; - } - ok = ndr_syntax_id_equal(abstract, &ndr_table_netlogon.syntax_id); - if (ok) { - context_fns->allow_connect = false; - } - /* - * for the epmapper and echo interfaces we allow "connect" - * auth_level by default. - */ - ok = ndr_syntax_id_equal(abstract, &ndr_table_epmapper.syntax_id); - if (ok) { - context_fns->allow_connect = true; - } - ok = ndr_syntax_id_equal(abstract, &ndr_table_rpcecho.syntax_id); - if (ok) { - context_fns->allow_connect = true; - } - /* - * every interface can be modified to allow "connect" auth_level by - * using a parametric option like: - * allow dcerpc auth level connect:<interface> - * e.g. - * allow dcerpc auth level connect:samr = yes - */ - context_fns->allow_connect = lp_parm_bool(-1, - "allow dcerpc auth level connect", - interface_name, context_fns->allow_connect); - - ok = ndr_syntax_id_equal(abstract, &ndr_table_iremotewinspool.syntax_id); - if (ok) { - context_fns->min_auth_level = DCERPC_AUTH_LEVEL_PACKET; - } - - /* add to the list of open contexts */ - - DLIST_ADD( p->contexts, context_fns ); - - return True; -} - /** * Is a named pipe known? * @param[in] dce_ctx The rpc server context @@ -519,1393 +81,3 @@ NTSTATUS is_known_pipename(struct dcesrv_context *dce_ctx, return NT_STATUS_OBJECT_NAME_NOT_FOUND; } - -/******************************************************************* - Handle an NTLMSSP bind auth. -*******************************************************************/ - -static bool pipe_auth_generic_bind(struct pipes_struct *p, - struct ncacn_packet *pkt, - struct dcerpc_auth *auth_info, - const char *service_description, - DATA_BLOB *response) -{ - TALLOC_CTX *mem_ctx = pkt; - struct gensec_security *gensec_security = NULL; - NTSTATUS status; - - status = auth_generic_server_authtype_start(p, - auth_info->auth_type, - auth_info->auth_level, - p->remote_address, - p->local_address, - service_description, - &gensec_security); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, (__location__ ": auth_generic_server_authtype_start[%u/%u] failed: %s\n", - auth_info->auth_type, auth_info->auth_level, nt_errstr(status))); - return false; - } - - p->auth.auth_ctx = gensec_security; - p->auth.auth_type = auth_info->auth_type; - p->auth.auth_level = auth_info->auth_level; - p->auth.auth_context_id = auth_info->auth_context_id; - - 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); - } - - status = auth_generic_server_step(gensec_security, mem_ctx, - &auth_info->credentials, - response); - if (!NT_STATUS_IS_OK(status) && - !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) - { - DEBUG(2, (__location__ ": " - "auth_generic_server_step[%u/%u] failed: %s\n", - auth_info->auth_type, auth_info->auth_level, - nt_errstr(status))); - return false; - } - - if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { - return true; - } - - status = pipe_auth_verify_final(p); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("pipe_auth_verify_final failed: %s\n", - nt_errstr(status))); - return false; - } - - return true; -} - -/******************************************************************* - Process an NTLMSSP authentication response. - If this function succeeds, the user has been authenticated - and their domain, name and calling workstation stored in - the pipe struct. -*******************************************************************/ - -static bool pipe_auth_generic_verify_final(TALLOC_CTX *mem_ctx, - struct gensec_security *gensec_security, - enum dcerpc_AuthLevel auth_level, - struct auth_session_info **session_info) -{ - NTSTATUS status; - bool ret; - - DEBUG(5, (__location__ ": checking user details\n")); - - /* Finally - if the pipe negotiated integrity (sign) or privacy (seal) - ensure the underlying NTLMSSP flags are also set. If not we should - refuse the bind. */ - - status = auth_generic_server_check_flags(gensec_security, - (auth_level >= - DCERPC_AUTH_LEVEL_PACKET), - (auth_level == - DCERPC_AUTH_LEVEL_PRIVACY)); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, (__location__ ": Client failed to negotiate proper " - "security for rpc connection\n")); - return false; - } - - TALLOC_FREE(*session_info); - - status = auth_generic_server_get_user_info(gensec_security, - mem_ctx, session_info); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, (__location__ ": failed to obtain the server info " - "for authenticated user: %s\n", nt_errstr(status))); - return false; - } - - if ((*session_info)->security_token == NULL) { - DEBUG(1, ("Auth module failed to provide nt_user_token\n")); - return false; - } - - if ((*session_info)->unix_token == NULL) { - DEBUG(1, ("Auth module failed to provide unix_token\n")); - return false; - } - - /* - * We're an authenticated bind over smb, so the session key needs to - * be set to "SystemLibraryDTC". Weird, but this is what Windows - * does. See the RPC-SAMBA3SESSIONKEY. - */ - - ret = session_info_set_session_key((*session_info), generic_session_key()); - if (!ret) { - DEBUG(0, ("Failed to set session key!\n")); - return false; - } - - return true; -} - -static NTSTATUS pipe_auth_verify_final(struct pipes_struct *p) -{ - struct gensec_security *gensec_security; - bool ok; - - if (p->auth.auth_type == DCERPC_AUTH_TYPE_NONE) { - p->pipe_bound = true; - return NT_STATUS_OK; - } - - gensec_security = p->auth.auth_ctx; - - ok = pipe_auth_generic_verify_final(p, gensec_security, - p->auth.auth_level, - &p->session_info); - if (!ok) { - return NT_STATUS_ACCESS_DENIED; - } - - p->pipe_bound = true; - - return NT_STATUS_OK; -} - -/******************************************************************* - Respond to a pipe bind request. -*******************************************************************/ - -static bool api_pipe_bind_req(struct pipes_struct *p, - struct ncacn_packet *pkt) -{ - struct dcerpc_auth auth_info = {0}; - uint16_t assoc_gid; - 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; - const char *secondary_address = NULL; - - if (!p->allow_bind) { - DEBUG(2,("Pipe not in allow bind state\n")); - return setup_bind_nak(p, pkt); - } - p->allow_bind = false; - - status = dcerpc_verify_ncacn_packet_header(pkt, - DCERPC_PKT_BIND, - pkt->u.bind.auth_info.length, - 0, /* required flags */ - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST | - DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN | - 0x08 | /* this is not defined, but should be ignored */ - DCERPC_PFC_FLAG_CONC_MPX | - DCERPC_PFC_FLAG_DID_NOT_EXECUTE | - DCERPC_PFC_FLAG_MAYBE | - DCERPC_PFC_FLAG_OBJECT_UUID); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, ("api_pipe_bind_req: invalid pdu: %s\n", - nt_errstr(status))); - NDR_PRINT_DEBUG(ncacn_packet, pkt); - goto err_exit; - } - - if (pkt->u.bind.num_contexts == 0) { - DEBUG(1, ("api_pipe_bind_req: no rpc contexts around\n")); - goto err_exit; - } - - if (pkt->u.bind.ctx_list[0].num_transfer_syntaxes == 0) { - DEBUG(1, ("api_pipe_bind_req: no transfer syntaxes around\n")); - goto err_exit; - } - - /* - * Try and find the correct pipe name to ensure - * 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) { - char *iface = ndr_syntax_id_to_string(talloc_tos(), &id); - DBG_NOTICE("unknown interface %s\n", - iface ? iface : "<null>"); - TALLOC_FREE(iface); - 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", 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", - ndr_interface_name(&id.uuid, - id.if_version))); - - return setup_bind_nak(p, pkt); - } - - if (rpc_srv_get_pipe_interface_by_cli_name( - 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), - rpc_srv_get_pipe_srv_name(&id))); - } else { - DEBUG(0, ("module %s doesn't provide functions for " - "pipe %s!\n", - ndr_interface_name(&id.uuid, - id.if_version), - ndr_interface_name(&id.uuid, - id.if_version))); - return setup_bind_nak(p, pkt); - } - } - - DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__)); - - if (pkt->u.bind.assoc_group_id != 0) { - assoc_gid = pkt->u.bind.assoc_group_id; - } else { - assoc_gid = 0x53f0; - } - - /* - * Create the bind response struct. - */ - - /* If the requested abstract synt uuid doesn't match our client pipe, - reject the bind_ack & set the transfer interface synt to all 0's, - ver 0 (observed when NT5 attempts to bind to abstract interfaces - unknown to NT4) - Needed when adding entries to a DACL from NT5 - SK */ - - if (check_bind_req(p, - &pkt->u.bind.ctx_list[0].abstract_syntax, - &pkt->u.bind.ctx_list[0].transfer_syntaxes[0], - pkt->u.bind.ctx_list[0].context_id)) { - - bind_ack_ctx.result = 0; - bind_ack_ctx.reason.value = 0; - bind_ack_ctx.syntax = pkt->u.bind.ctx_list[0].transfer_syntaxes[0]; - } else { - /* Rejection reason: abstract syntax not supported */ - bind_ack_ctx.result = DCERPC_BIND_PROVIDER_REJECT; - bind_ack_ctx.reason.value = DCERPC_BIND_REASON_ASYNTAX; - bind_ack_ctx.syntax = ndr_syntax_id_null; - } - - /* - * Check if this is an authenticated bind request. - */ - if (pkt->auth_length) { - /* - * Decode the authentication verifier. - */ - status = dcerpc_pull_auth_trailer(pkt, pkt, - &pkt->u.bind.auth_info, - &auth_info, NULL, true); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n")); - goto err_exit; - } - - if (!pipe_auth_generic_bind(p, pkt, - &auth_info, - table->name, - &auth_resp)) { - goto err_exit; - } - } else { - TALLOC_CTX *frame = talloc_stackframe(); - struct auth4_context *auth4_context; - const char *transport_protection = AUTHZ_TRANSPORT_PROTECTION_NONE; - if (p->transport == NCACN_NP) { - transport_protection = AUTHZ_TRANSPORT_PROTECTION_SMB; - } - - p->auth.auth_type = DCERPC_AUTH_TYPE_NONE; - p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE; - p->auth.auth_context_id = 0; - - become_root(); - status = make_auth4_context(frame, &auth4_context); - unbecome_root(); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Unable to make auth context for authz log.\n")); - TALLOC_FREE(frame); - goto err_exit; - } - - /* - * Log the authorization to this RPC interface. This - * covered ncacn_np pass-through auth, and anonymous - * DCE/RPC (eg epmapper, netlogon etc) - */ - log_successful_authz_event(auth4_context->msg_ctx, - auth4_context->lp_ctx, - p->remote_address, - p->local_address, - table->name, - derpc_transport_string_by_transport(p->transport), - transport_protection, - p->session_info); - TALLOC_FREE(frame); - } - - ZERO_STRUCT(u.bind_ack); - u.bind_ack.max_xmit_frag = RPC_MAX_PDU_FRAG_LEN; - u.bind_ack.max_recv_frag = RPC_MAX_PDU_FRAG_LEN; - u.bind_ack.assoc_group_id = assoc_gid; - - switch (p->transport) { - case NCACN_IP_TCP: - secondary_address = talloc_asprintf(pkt, "%d", - tsocket_address_inet_port(p->local_address)); - break; - case NCACN_NP: - default: - /* name has to be \PIPE\xxxxx */ - secondary_address = - talloc_asprintf(pkt, "\\PIPE\\%s", - rpc_srv_get_pipe_srv_name(&id)); - break; - } - - if (secondary_address == NULL) { - DEBUG(0, ("Out of memory!\n")); - goto err_exit; - } - - u.bind_ack.secondary_address = secondary_address; - u.bind_ack.secondary_address_size = - strlen(u.bind_ack.secondary_address) + 1; - - u.bind_ack.num_results = 1; - u.bind_ack.ctx_list = &bind_ack_ctx; - - /* NOTE: We leave the auth_info empty so we can calculate the padding - * later and then append the auth_info --simo */ - - /* - * Marshall directly into the outgoing PDU space. We - * must do this as we need to set to the bind response - * 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, - pfc_flags, - auth_resp.length, - pkt->call_id, - &u, - &p->out_data.frag); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Failed to marshall bind_ack packet. (%s)\n", - nt_errstr(status))); - goto err_exit; - } - - if (auth_resp.length) { - status = dcerpc_push_dcerpc_auth(pkt, - p->auth.auth_type, - p->auth.auth_level, - 0, /* pad_len */ - p->auth.auth_context_id, - &auth_resp, - &auth_blob); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Marshalling of dcerpc_auth failed.\n")); - goto err_exit; - } - } - - /* Now that we have the auth len store it into the right place in - * the dcerpc header */ - dcerpc_set_frag_length(&p->out_data.frag, - p->out_data.frag.length + auth_blob.length); - - if (auth_blob.length) { - - if (!data_blob_append(p->mem_ctx, &p->out_data.frag, - auth_blob.data, auth_blob.length)) { - DEBUG(0, ("Append of auth info failed.\n")); - goto err_exit; - } - } - - /* - * Setup the lengths for the initial reply. - */ - - p->out_data.data_sent_length = 0; - p->out_data.current_pdu_sent = 0; - - TALLOC_FREE(auth_blob.data); - - if (bind_ack_ctx.result == 0) { - p->allow_alter = true; - p->allow_auth3 = true; - if (p->auth.auth_type == DCERPC_AUTH_TYPE_NONE) { - status = pipe_auth_verify_final(p); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("pipe_auth_verify_final failed: %s\n", - nt_errstr(status))); - goto err_exit; - } - } - } else { - goto err_exit; - } - - return True; - - err_exit: - - data_blob_free(&p->out_data.frag); - TALLOC_FREE(auth_blob.data); - return setup_bind_nak(p, pkt); -} - -/******************************************************************* - This is the "stage3" response after a bind request and reply. -*******************************************************************/ - -bool api_pipe_bind_auth3(struct pipes_struct *p, struct ncacn_packet *pkt) -{ - struct dcerpc_auth auth_info; - DATA_BLOB response = data_blob_null; - struct gensec_security *gensec_security; - NTSTATUS status; - - DEBUG(5, ("api_pipe_bind_auth3: decode request. %d\n", __LINE__)); - - if (!p->allow_auth3) { - DEBUG(1, ("Pipe not in allow auth3 state.\n")); - goto err; - } - - status = dcerpc_verify_ncacn_packet_header(pkt, - DCERPC_PKT_AUTH3, - pkt->u.auth3.auth_info.length, - 0, /* required flags */ - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST | - DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN | - 0x08 | /* this is not defined, but should be ignored */ - DCERPC_PFC_FLAG_CONC_MPX | - DCERPC_PFC_FLAG_DID_NOT_EXECUTE | - DCERPC_PFC_FLAG_MAYBE | - DCERPC_PFC_FLAG_OBJECT_UUID); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, ("api_pipe_bind_auth3: invalid pdu: %s\n", - nt_errstr(status))); - NDR_PRINT_DEBUG(ncacn_packet, pkt); - goto err; - } - - /* We can only finish if the pipe is unbound for now */ - if (p->pipe_bound) { - DEBUG(0, (__location__ ": Pipe already bound, " - "AUTH3 not supported!\n")); - goto err; - } - - if (pkt->auth_length == 0) { - DEBUG(1, ("No auth field sent for auth3 request!\n")); - goto err; - } - - /* - * Decode the authentication verifier response. - */ - - status = dcerpc_pull_auth_trailer(pkt, pkt, - &pkt->u.auth3.auth_info, - &auth_info, NULL, true); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, ("Failed to unmarshall dcerpc_auth.\n")); - goto err; - } - - /* We must NEVER look at auth_info->auth_pad_len here, - * as old Samba client code gets it wrong and sends it - * as zero. JRA. - */ - - if (auth_info.auth_type != p->auth.auth_type) { - 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; - } - - if (auth_info.auth_level != p->auth.auth_level) { - DEBUG(1, ("Auth level mismatch! Client sent %d, " - "but auth was started as level %d!\n", - auth_info.auth_level, p->auth.auth_level)); - goto err; - } - - if (auth_info.auth_context_id != p->auth.auth_context_id) { - DEBUG(0, ("Auth context id mismatch! Client sent %u, " - "but auth was started as level %u!\n", - (unsigned)auth_info.auth_context_id, - (unsigned)p->auth.auth_context_id)); - goto err; - } - - gensec_security = p->auth.auth_ctx; - - status = auth_generic_server_step(gensec_security, - pkt, &auth_info.credentials, - &response); - - if (NT_STATUS_EQUAL(status, - NT_STATUS_MORE_PROCESSING_REQUIRED) || - response.length) { - 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(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(2, ("Auth Verify failed (%s)\n", nt_errstr(status))); - goto err; - } - - return true; - -err: - p->pipe_bound = false; - p->allow_bind = false; - p->allow_alter = false; - p->allow_auth3 = false; - - TALLOC_FREE(p->auth.auth_ctx); - return false; -} - -/**************************************************************************** - Deal with an alter context call. Can be third part of 3 leg auth request for - SPNEGO calls. -****************************************************************************/ - -static bool api_pipe_alter_context(struct pipes_struct *p, - struct ncacn_packet *pkt) -{ - struct dcerpc_auth auth_info = {0}; - uint16_t assoc_gid; - NTSTATUS status; - union dcerpc_payload u; - struct dcerpc_ack_ctx alter_ack_ctx; - DATA_BLOB auth_resp = data_blob_null; - DATA_BLOB auth_blob = data_blob_null; - struct gensec_security *gensec_security; - - DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__)); - - if (!p->allow_alter) { - DEBUG(1, ("Pipe not in allow alter state.\n")); - goto err_exit; - } - - status = dcerpc_verify_ncacn_packet_header(pkt, - DCERPC_PKT_ALTER, - pkt->u.alter.auth_info.length, - 0, /* required flags */ - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST | - DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN | - 0x08 | /* this is not defined, but should be ignored */ - DCERPC_PFC_FLAG_CONC_MPX | - DCERPC_PFC_FLAG_DID_NOT_EXECUTE | - DCERPC_PFC_FLAG_MAYBE | - DCERPC_PFC_FLAG_OBJECT_UUID); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, ("api_pipe_alter_context: invalid pdu: %s\n", - nt_errstr(status))); - NDR_PRINT_DEBUG(ncacn_packet, pkt); - goto err_exit; - } - - if (pkt->u.alter.num_contexts == 0) { - DEBUG(1, ("api_pipe_alter_context: no rpc contexts around\n")); - goto err_exit; - } - - if (pkt->u.alter.ctx_list[0].num_transfer_syntaxes == 0) { - DEBUG(1, ("api_pipe_alter_context: no transfer syntaxes around\n")); - goto err_exit; - } - - if (pkt->u.alter.assoc_group_id != 0) { - assoc_gid = pkt->u.alter.assoc_group_id; - } else { - assoc_gid = 0x53f0; - } - - /* - * Create the bind response struct. - */ - - /* If the requested abstract synt uuid doesn't match our client pipe, - reject the alter_ack & set the transfer interface synt to all 0's, - ver 0 (observed when NT5 attempts to bind to abstract interfaces - unknown to NT4) - Needed when adding entries to a DACL from NT5 - SK */ - - if (check_bind_req(p, - &pkt->u.alter.ctx_list[0].abstract_syntax, - &pkt->u.alter.ctx_list[0].transfer_syntaxes[0], - pkt->u.alter.ctx_list[0].context_id)) { - - alter_ack_ctx.result = 0; - alter_ack_ctx.reason.value = 0; - alter_ack_ctx.syntax = pkt->u.alter.ctx_list[0].transfer_syntaxes[0]; - } else { - /* Rejection reason: abstract syntax not supported */ - alter_ack_ctx.result = DCERPC_BIND_PROVIDER_REJECT; - alter_ack_ctx.reason.value = DCERPC_BIND_REASON_ASYNTAX; - alter_ack_ctx.syntax = ndr_syntax_id_null; - } - - /* - * Check if this is an authenticated alter context request. - */ - if (pkt->auth_length) { - /* We can only finish if the pipe is unbound for now */ - if (p->pipe_bound) { - DEBUG(0, (__location__ ": Pipe already bound, " - "Altering Context not yet supported!\n")); - goto err_exit; - } - - status = dcerpc_pull_auth_trailer(pkt, pkt, - &pkt->u.alter.auth_info, - &auth_info, NULL, true); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n")); - goto err_exit; - } - - if (auth_info.auth_type != p->auth.auth_type) { - DEBUG(0, ("Auth type mismatch! Client sent %d, " - "but auth was started as type %d!\n", - auth_info.auth_type, p->auth.auth_type)); - goto err_exit; - } - - if (auth_info.auth_level != p->auth.auth_level) { - DEBUG(0, ("Auth level mismatch! Client sent %d, " - "but auth was started as level %d!\n", - auth_info.auth_level, p->auth.auth_level)); - goto err_exit; - } - - if (auth_info.auth_context_id != p->auth.auth_context_id) { - DEBUG(0, ("Auth context id mismatch! Client sent %u, " - "but auth was started as level %u!\n", - (unsigned)auth_info.auth_context_id, - (unsigned)p->auth.auth_context_id)); - goto err_exit; - } - - gensec_security = p->auth.auth_ctx; - status = auth_generic_server_step(gensec_security, - pkt, - &auth_info.credentials, - &auth_resp); - if (NT_STATUS_IS_OK(status)) { - /* third leg of auth, verify auth info */ - status = pipe_auth_verify_final(p); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Auth Verify failed (%s)\n", - nt_errstr(status))); - goto err_exit; - } - } else if (NT_STATUS_EQUAL(status, - NT_STATUS_MORE_PROCESSING_REQUIRED)) { - DEBUG(10, ("More auth legs required.\n")); - } else { - DEBUG(0, ("Auth step returned an error (%s)\n", - nt_errstr(status))); - goto err_exit; - } - } - - ZERO_STRUCT(u.alter_resp); - u.alter_resp.max_xmit_frag = RPC_MAX_PDU_FRAG_LEN; - u.alter_resp.max_recv_frag = RPC_MAX_PDU_FRAG_LEN; - u.alter_resp.assoc_group_id = assoc_gid; - - /* secondary address CAN be NULL - * as the specs say it's ignored. - * It MUST be NULL to have the spoolss working. - */ - u.alter_resp.secondary_address = ""; - u.alter_resp.secondary_address_size = 1; - - u.alter_resp.num_results = 1; - u.alter_resp.ctx_list = &alter_ack_ctx; - - /* NOTE: We leave the auth_info empty so we can calculate the padding - * later and then append the auth_info --simo */ - - /* - * Marshall directly into the outgoing PDU space. We - * must do this as we need to set to the bind response - * header and are never sending more than one PDU here. - */ - - status = dcerpc_push_ncacn_packet(p->mem_ctx, - DCERPC_PKT_ALTER_RESP, - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST, - auth_resp.length, - pkt->call_id, - &u, - &p->out_data.frag); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Failed to marshall alter_resp packet. (%s)\n", - nt_errstr(status))); - goto err_exit; - } - - if (auth_resp.length) { - status = dcerpc_push_dcerpc_auth(pkt, - p->auth.auth_type, - p->auth.auth_level, - 0, /* pad_len */ - p->auth.auth_context_id, - &auth_resp, - &auth_blob); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Marshalling of dcerpc_auth failed.\n")); - goto err_exit; - } - } - - /* Now that we have the auth len store it into the right place in - * the dcerpc header */ - dcerpc_set_frag_length(&p->out_data.frag, - p->out_data.frag.length + - auth_blob.length); - - if (auth_resp.length) { - if (!data_blob_append(p->mem_ctx, &p->out_data.frag, - auth_blob.data, auth_blob.length)) { - DEBUG(0, ("Append of auth info failed.\n")); - goto err_exit; - } - } - - /* - * Setup the lengths for the initial reply. - */ - - p->out_data.data_sent_length = 0; - p->out_data.current_pdu_sent = 0; - - TALLOC_FREE(auth_blob.data); - return True; - - err_exit: - - data_blob_free(&p->out_data.frag); - TALLOC_FREE(auth_blob.data); - return setup_bind_nak(p, pkt); -} - -static bool api_rpcTNP(struct pipes_struct *p, struct ncacn_packet *pkt, - 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 - before doing the call. -****************************************************************************/ - -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; - const char *interface_name = NULL; - const char *dump_dir = NULL; - - if (!p->pipe_bound) { - DEBUG(1, ("Pipe not bound!\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 == 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; - } - - interface_name = ndr_interface_name(&pipe_fns->syntax.uuid, - pipe_fns->syntax.if_version); - SMB_ASSERT(interface_name != NULL); - - if (p->auth.auth_level < pipe_fns->min_auth_level) { - - DEBUG(1, ("%s: auth level required for %s: 0x%x, got: 0x%0x\n", - __func__, interface_name, - pipe_fns->min_auth_level, - p->auth.auth_level)); - - setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_ACCESS_DENIED)); - TALLOC_FREE(frame); - return true; - } - - switch (p->auth.auth_level) { - case DCERPC_AUTH_LEVEL_NONE: - case DCERPC_AUTH_LEVEL_PACKET: - case DCERPC_AUTH_LEVEL_INTEGRITY: - case DCERPC_AUTH_LEVEL_PRIVACY: - break; - default: - if (!pipe_fns->allow_connect) { - char *addr; - - addr = tsocket_address_string(p->remote_address, frame); - - DEBUG(1, ("%s: restrict auth_level_connect access " - "to [%s] with auth[type=0x%x,level=0x%x] " - "on [%s] from [%s]\n", - __func__, interface_name, - p->auth.auth_type, - p->auth.auth_level, - derpc_transport_string_by_transport(p->transport), - addr)); - - setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_ACCESS_DENIED)); - TALLOC_FREE(frame); - return true; - } - break; - } - - dump_dir = lp_parm_const_string(0, "dcesrv", "fuzz directory", NULL); - - dcerpc_save_ndr_fuzz_seed(p, - p->in_data.data, - dump_dir, - interface_name, - NDR_IN, - pkt->u.request.opnum, - false); - - if (!srv_pipe_check_verification_trailer(p, pkt, pipe_fns)) { - DEBUG(1, ("srv_pipe_check_verification_trailer: failed\n")); - set_incoming_fault(p); - 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", interface_name)); - - ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds, - &pipe_fns->syntax); - unbecome_authenticated_pipe_user(); - - dcerpc_save_ndr_fuzz_seed(p, - p->out_data.rdata, - dump_dir, - interface_name, - NDR_OUT, - pkt->u.request.opnum, - false); - - TALLOC_FREE(frame); - return ret; -} - -/******************************************************************* - Calls the underlying RPC function for a named pipe. - ********************************************************************/ - -static bool api_rpcTNP(struct pipes_struct *p, struct ncacn_packet *pkt, - const struct api_struct *api_rpc_cmds, int n_cmds, - const struct ndr_syntax_id *syntax) -{ - int fn_num; - uint32_t offset1; - const struct ndr_interface_table *table; - - /* interpret the command */ - DEBUG(4,("api_rpcTNP: %s op 0x%x - ", - 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", - 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); - } - - for (fn_num = 0; fn_num < n_cmds; fn_num++) { - if (api_rpc_cmds[fn_num].opnum == pkt->u.request.opnum && - api_rpc_cmds[fn_num].fn != NULL) { - DEBUG(3, ("api_rpcTNP: rpc command: %s\n", - api_rpc_cmds[fn_num].name)); - break; - } - } - - if (fn_num == n_cmds) { - /* - * For an unknown RPC just return a fault PDU but - * return True to allow RPC's on the pipe to continue - * and not put the pipe into fault state. JRA. - */ - DEBUG(4, ("unknown\n")); - setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR)); - return True; - } - - offset1 = p->out_data.rdata.length; - - DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n", - fn_num, api_rpc_cmds[fn_num].fn)); - /* do the actual command */ - if(!api_rpc_cmds[fn_num].fn(p)) { - DEBUG(0,("api_rpcTNP: %s: %s failed.\n", - 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->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", - 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", - ndr_interface_name(&syntax->uuid, syntax->if_version))); - - /* Check for buffer underflow in rpc parsing */ - if ((DEBUGLEVEL >= 10) && - (pkt->frag_length < p->in_data.data.length)) { - DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n")); - dump_data(10, p->in_data.data.data + pkt->frag_length, - p->in_data.data.length - pkt->frag_length); - } - - return True; -} - -/**************************************************************************** - Initialise an outgoing packet. -****************************************************************************/ - -static bool pipe_init_outgoing_data(struct pipes_struct *p) -{ - output_data *o_data = &p->out_data; - - /* Reset the offset counters. */ - o_data->data_sent_length = 0; - o_data->current_pdu_sent = 0; - - data_blob_free(&o_data->frag); - - /* Free any memory in the current return data buffer. */ - data_blob_free(&o_data->rdata); - - return True; -} - -/**************************************************************************** - Sets the fault state on incoming packets. -****************************************************************************/ - -void set_incoming_fault(struct pipes_struct *p) -{ - data_blob_free(&p->in_data.data); - p->in_data.pdu_needed_len = 0; - p->in_data.pdu.length = 0; - p->fault_state = DCERPC_NCA_S_PROTO_ERROR; - - p->allow_alter = false; - p->allow_auth3 = false; - p->pipe_bound = false; - - DEBUG(10, ("Setting fault state\n")); -} - -static NTSTATUS dcesrv_auth_request(struct pipe_auth_data *auth, - struct ncacn_packet *pkt, - DATA_BLOB *raw_pkt) -{ - NTSTATUS status; - size_t hdr_size = DCERPC_REQUEST_LENGTH; - - DEBUG(10, ("Checking request auth.\n")); - - if (pkt->pfc_flags & DCERPC_PFC_FLAG_OBJECT_UUID) { - hdr_size += 16; - } - - /* in case of sealing this function will unseal the data in place */ - status = dcerpc_check_auth(auth, pkt, - &pkt->u.request.stub_and_verifier, - hdr_size, raw_pkt); - if (!NT_STATUS_IS_OK(status)) { - return status; - } - - return NT_STATUS_OK; -} - -/**************************************************************************** - Processes a request pdu. This will do auth processing if needed, and - appends the data into the complete stream if the LAST flag is not set. -****************************************************************************/ - -static bool process_request_pdu(struct pipes_struct *p, struct ncacn_packet *pkt) -{ - 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")); - set_incoming_fault(p); - return False; - } - - /* - * We don't ignore DCERPC_PFC_FLAG_PENDING_CANCEL. - * TODO: we can reject it with DCERPC_FAULT_NO_CALL_ACTIVE later. - */ - status = dcerpc_verify_ncacn_packet_header(pkt, - DCERPC_PKT_REQUEST, - pkt->u.request.stub_and_verifier.length, - 0, /* required_flags */ - DCERPC_PFC_FLAG_FIRST | - DCERPC_PFC_FLAG_LAST | - 0x08 | /* this is not defined, but should be ignored */ - DCERPC_PFC_FLAG_CONC_MPX | - DCERPC_PFC_FLAG_DID_NOT_EXECUTE | - DCERPC_PFC_FLAG_MAYBE | - DCERPC_PFC_FLAG_OBJECT_UUID); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(1, ("process_request_pdu: invalid pdu: %s\n", - nt_errstr(status))); - NDR_PRINT_DEBUG(ncacn_packet, pkt); - set_incoming_fault(p); - 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; - - status = dcesrv_auth_request(&p->auth, pkt, &p->in_data.pdu); - if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("Failed to check packet auth. (%s)\n", - nt_errstr(status))); - set_incoming_fault(p); - return false; - } - - data = pkt->u.request.stub_and_verifier; - - /* - * Check the data length doesn't go over the 15Mb limit. - * increased after observing a bug in the Windows NT 4.0 SP6a - * spoolsv.exe when the response to a GETPRINTERDRIVER2 RPC - * will not fit in the initial buffer of size 0x1068 --jerry 22/01/2002 - */ - - if (p->in_data.data.length + data.length > MAX_RPC_DATA_SIZE) { - DEBUG(0, ("process_request_pdu: " - "rpc data buffer too large (%u) + (%u)\n", - (unsigned int)p->in_data.data.length, - (unsigned int)data.length)); - set_incoming_fault(p); - return False; - } - - /* - * Append the data portion into the buffer and return. - */ - - if (data.length) { - if (!data_blob_append(p->mem_ctx, &p->in_data.data, - data.data, data.length)) { - DEBUG(0, ("Unable to append data size %u " - "to parse buffer of size %u.\n", - (unsigned int)data.length, - (unsigned int)p->in_data.data.length)); - set_incoming_fault(p); - return False; - } - } - - if (!(pkt->pfc_flags & DCERPC_PFC_FLAG_LAST)) { - return true; - } - - /* - * Ok - we finally have a complete RPC stream. - * Call the rpc command to process it. - */ - - 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); - break; - - case DCERPC_PKT_PING: /* CL request - ignore... */ - DEBUG(0, ("Error - Connectionless packet type %u received\n", - (unsigned int)pkt->ptype)); - break; - - case DCERPC_PKT_RESPONSE: /* No responses here. */ - DEBUG(0, ("Error - DCERPC_PKT_RESPONSE received from client")); - break; - - case DCERPC_PKT_FAULT: - case DCERPC_PKT_WORKING: - /* CL request - reply to a ping when a call in process. */ - case DCERPC_PKT_NOCALL: - /* CL - server reply to a ping call. */ - case DCERPC_PKT_REJECT: - case DCERPC_PKT_ACK: - case DCERPC_PKT_CL_CANCEL: - case DCERPC_PKT_FACK: - case DCERPC_PKT_CANCEL_ACK: - DEBUG(0, ("Error - Connectionless packet type %u received\n", - (unsigned int)pkt->ptype)); - break; - - case DCERPC_PKT_BIND: - /* - * We assume that a pipe bind is only in one pdu. - */ - reply = api_pipe_bind_req(p, pkt); - break; - - case DCERPC_PKT_BIND_ACK: - case DCERPC_PKT_BIND_NAK: - DEBUG(0, ("Error - DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK " - "packet type %u received.\n", - (unsigned int)pkt->ptype)); - break; - - - case DCERPC_PKT_ALTER: - /* - * We assume that a pipe bind is only in one pdu. - */ - reply = api_pipe_alter_context(p, pkt); - break; - - case DCERPC_PKT_ALTER_RESP: - DEBUG(0, ("Error - DCERPC_PKT_ALTER_RESP received: " - "Should only be server -> client.\n")); - break; - - case DCERPC_PKT_AUTH3: - /* - * The third packet in an auth exchange. - */ - reply = api_pipe_bind_auth3(p, pkt); - break; - - case DCERPC_PKT_SHUTDOWN: - DEBUG(0, ("Error - DCERPC_PKT_SHUTDOWN received: " - "Should only be server -> client.\n")); - break; - - case DCERPC_PKT_CO_CANCEL: - /* For now just free all client data and continue - * processing. */ - DEBUG(3,("process_complete_pdu: DCERPC_PKT_CO_CANCEL." - " Abandoning rpc call.\n")); - /* As we never do asynchronous RPC serving, we can - * never cancel a call (as far as I know). - * If we ever did we'd have to send a cancel_ack reply. - * For now, just free all client data and continue - * processing. */ - reply = True; - break; - -#if 0 - /* Enable this if we're doing async rpc. */ - /* We must check the outstanding callid matches. */ - if (pipe_init_outgoing_data(p)) { - /* Send a cancel_ack PDU reply. */ - /* We should probably check the auth-verifier here. */ - reply = setup_cancel_ack_reply(p, pkt); - } - break; -#endif - - case DCERPC_PKT_ORPHANED: - /* We should probably check the auth-verifier here. - * For now just free all client data and continue - * processing. */ - DEBUG(3, ("process_complete_pdu: DCERPC_PKT_ORPHANED." - " Abandoning rpc call.\n")); - reply = True; - break; - - default: - DEBUG(0, ("process_complete_pdu: " - "Unknown rpc type = %u received.\n", - (unsigned int)pkt->ptype)); - break; - } - -done: - if (!reply) { - DBG_NOTICE("DCE/RPC fault sent!\n"); - set_incoming_fault(p); - setup_fault_pdu(p, NT_STATUS(DCERPC_NCA_S_PROTO_ERROR)); - } - /* pkt and p->in_data.pdu.data freed by caller */ -} - diff --git a/source3/rpc_server/srv_pipe.h b/source3/rpc_server/srv_pipe.h index d9d15adbf4e..e8ebc9ab5dc 100644 --- a/source3/rpc_server/srv_pipe.h +++ b/source3/rpc_server/srv_pipe.h @@ -20,16 +20,11 @@ #ifndef _RPC_SERVER_SRV_PIPE_H_ #define _RPC_SERVER_SRV_PIPE_H_ -struct ncacn_packet; -struct pipes_struct; struct dcesrv_context; struct dcesrv_endpoint; /* The following definitions come from rpc_server/srv_pipe.c */ -bool create_next_pdu(struct pipes_struct *p); -bool api_pipe_bind_auth3(struct pipes_struct *p, struct ncacn_packet *pkt); -bool setup_fault_pdu(struct pipes_struct *p, NTSTATUS status); NTSTATUS is_known_pipename(struct dcesrv_context *dce_ctx, const char *pipename, struct dcesrv_endpoint **ep); diff --git a/source3/rpc_server/wscript_build b/source3/rpc_server/wscript_build index 4b2ed1f19be..3b779476258 100644 --- a/source3/rpc_server/wscript_build +++ b/source3/rpc_server/wscript_build @@ -17,10 +17,6 @@ bld.SAMBA3_SUBSYSTEM('RPC_SERVER_LOOP', source='rpc_server.c', deps='samba-util') -bld.SAMBA3_SUBSYSTEM('RPC_CRYPTO', - source='dcesrv_auth_generic.c', - deps = 'KRB5_PAC') - bld.SAMBA3_SUBSYSTEM('RPC_PIPE_REGISTER', source='srv_pipe_register.c', deps='samba-util') @@ -36,7 +32,6 @@ bld.SAMBA3_SUBSYSTEM('RPC_SERVER', RPC_CONFIG RPC_NCACN_NP RPC_SERVER_LOOP - RPC_CRYPTO NDR_NAMED_PIPE_AUTH ''') |