/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
- * Almost completely rewritten by (C) Jeremy Allison 2005.
+ * Almost completely rewritten by (C) Jeremy Allison 2005 - 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
*/
#include "includes.h"
-#include "../libcli/auth/libcli_auth.h"
+#include "srv_pipe_internal.h"
#include "../librpc/gen_ndr/ndr_schannel.h"
-
-extern struct current_user current_user;
+#include "../libcli/auth/schannel.h"
+#include "../libcli/auth/spnego.h"
+#include "../libcli/auth/ntlmssp.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
{
- AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
+ struct auth_ntlmssp_state *a = auth->a_u.auth_ntlmssp_state;
if (a) {
auth_ntlmssp_end(&a);
DATA_BLOB auth_blob;
RPC_HDR_AUTH auth_info;
uint8 auth_type, auth_level;
- AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+ struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
+ TALLOC_CTX *frame;
/*
* If we're in the fault state, keep returning fault PDU's until
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
/* Change the incoming request header to a response. */
- p->hdr.pkt_type = RPC_RESPONSE;
+ p->hdr.pkt_type = DCERPC_PKT_RESPONSE;
/* Set up rpc header flags. */
if (p->out_data.data_sent_length == 0) {
- p->hdr.flags = RPC_FLG_FIRST;
+ p->hdr.flags = DCERPC_PFC_FLAG_FIRST;
} else {
p->hdr.flags = 0;
}
return False;
}
- data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
- - RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
+ /* Space available - not including padding. */
+ data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN -
+ RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
/*
* The amount we send is the minimum of the available
data_len = MIN(data_len_left, data_space_available);
+ /* Work out any padding alignment requirements. */
+ if ((RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len) % SERVER_NDR_PADDING_SIZE) {
+ ss_padding_len = SERVER_NDR_PADDING_SIZE -
+ ((RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len) % SERVER_NDR_PADDING_SIZE);
+ DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
+ ss_padding_len ));
+ /* If we're over filling the packet, we need to make space
+ * for the padding at the end of the data. */
+ if (data_len + ss_padding_len > data_space_available) {
+ data_len -= SERVER_NDR_PADDING_SIZE;
+ }
+ }
+
/*
* Set up the alloc hint. This should be the data left to
* send.
*/
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
- p->hdr.flags |= RPC_FLG_LAST;
- if (data_len_left % 8) {
- ss_padding_len = 8 - (data_len_left % 8);
- DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
- ss_padding_len ));
- }
+ p->hdr.flags |= DCERPC_PFC_FLAG_LAST;
}
/*
/* Copy the sign/seal padding data. */
if (ss_padding_len) {
- char pad[8];
+ char pad[SERVER_NDR_PADDING_SIZE];
- memset(pad, '\0', 8);
+ memset(pad, '\0', SERVER_NDR_PADDING_SIZE);
if (!prs_copy_data_in(&p->out_data.frag, pad,
ss_padding_len)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
/* Now write out the auth header and null blob. */
if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
- auth_type = RPC_NTLMSSP_AUTH_TYPE;
+ auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
} else {
- auth_type = RPC_SPNEGO_AUTH_TYPE;
+ auth_type = DCERPC_AUTH_TYPE_SPNEGO;
}
- if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
- auth_level = RPC_AUTH_LEVEL_PRIVACY;
+ if (p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
+ auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
} else {
- auth_level = RPC_AUTH_LEVEL_INTEGRITY;
+ auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
}
init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
- if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &p->out_data.frag,
- 0)) {
+
+ if (!smb_io_rpc_hdr_auth("hdr_auth", &auth_info,
+ &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
prs_mem_free(&p->out_data.frag);
return False;
/* Generate the sign blob. */
+ frame = talloc_stackframe();
switch (p->auth.auth_level) {
- case PIPE_AUTH_LEVEL_PRIVACY:
+ case DCERPC_AUTH_LEVEL_PRIVACY:
/* Data portion is encrypted. */
- status = ntlmssp_seal_packet(
- a->ntlmssp_state,
+ status = auth_ntlmssp_seal_packet(
+ a, frame,
(uint8_t *)prs_data_p(&p->out_data.frag)
+ RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
data_len + ss_padding_len,
(size_t)prs_offset(&p->out_data.frag),
&auth_blob);
if (!NT_STATUS_IS_OK(status)) {
- data_blob_free(&auth_blob);
+ talloc_free(frame);
prs_mem_free(&p->out_data.frag);
return False;
}
break;
- case PIPE_AUTH_LEVEL_INTEGRITY:
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
/* Data is signed. */
- status = ntlmssp_sign_packet(
- a->ntlmssp_state,
+ status = auth_ntlmssp_sign_packet(
+ a, frame,
(unsigned char *)prs_data_p(&p->out_data.frag)
+ RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
data_len + ss_padding_len,
(size_t)prs_offset(&p->out_data.frag),
&auth_blob);
if (!NT_STATUS_IS_OK(status)) {
- data_blob_free(&auth_blob);
+ talloc_free(frame);
prs_mem_free(&p->out_data.frag);
return False;
}
break;
default:
+ talloc_free(frame);
prs_mem_free(&p->out_data.frag);
return False;
}
NTLMSSP_SIG_SIZE)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
(unsigned int)NTLMSSP_SIG_SIZE));
- data_blob_free(&auth_blob);
+ talloc_free(frame);
prs_mem_free(&p->out_data.frag);
return False;
}
-
- data_blob_free(&auth_blob);
+ talloc_free(frame);
/*
* Setup the counts for this PDU.
uint32 data_space_available;
uint32 data_len_left;
uint32 data_pos;
+ NTSTATUS status;
/*
* If we're in the fault state, keep returning fault PDU's until
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
/* Change the incoming request header to a response. */
- p->hdr.pkt_type = RPC_RESPONSE;
+ p->hdr.pkt_type = DCERPC_PKT_RESPONSE;
/* Set up rpc header flags. */
if (p->out_data.data_sent_length == 0) {
- p->hdr.flags = RPC_FLG_FIRST;
+ p->hdr.flags = DCERPC_PFC_FLAG_FIRST;
} else {
p->hdr.flags = 0;
}
return False;
}
+ /* Space available - not including padding. */
data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
- RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN
- RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
data_len = MIN(data_len_left, data_space_available);
+ /* Work out any padding alignment requirements. */
+ if ((RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len) % SERVER_NDR_PADDING_SIZE) {
+ ss_padding_len = SERVER_NDR_PADDING_SIZE -
+ ((RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len) % SERVER_NDR_PADDING_SIZE);
+ DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
+ ss_padding_len ));
+ /* If we're over filling the packet, we need to make space
+ * for the padding at the end of the data. */
+ if (data_len + ss_padding_len > data_space_available) {
+ data_len -= SERVER_NDR_PADDING_SIZE;
+ }
+ }
+
/*
* Set up the alloc hint. This should be the data left to
* send.
*/
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
- p->hdr.flags |= RPC_FLG_LAST;
- if (data_len_left % 8) {
- ss_padding_len = 8 - (data_len_left % 8);
- DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
- ss_padding_len ));
- }
+ p->hdr.flags |= DCERPC_PFC_FLAG_LAST;
}
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
/* Copy the sign/seal padding data. */
if (ss_padding_len) {
- char pad[8];
- memset(pad, '\0', 8);
+ char pad[SERVER_NDR_PADDING_SIZE];
+ memset(pad, '\0', SERVER_NDR_PADDING_SIZE);
if (!prs_copy_data_in(&p->out_data.frag, pad,
ss_padding_len)) {
DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
* Schannel processing.
*/
RPC_HDR_AUTH auth_info;
- struct NL_AUTH_SIGNATURE verf;
DATA_BLOB blob;
- enum ndr_err_code ndr_err;
+ uint8_t *data;
/* Check it's the type of reply we were expecting to decode */
init_rpc_hdr_auth(&auth_info,
- RPC_SCHANNEL_AUTH_TYPE,
- p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
- RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
+ DCERPC_AUTH_TYPE_SCHANNEL,
+ p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY ?
+ DCERPC_AUTH_LEVEL_PRIVACY : DCERPC_AUTH_LEVEL_INTEGRITY,
ss_padding_len, 1);
- if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info,
+ if (!smb_io_rpc_hdr_auth("hdr_auth", &auth_info,
&p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
prs_mem_free(&p->out_data.frag);
return False;
}
- schannel_encode(p->auth.a_u.schannel_auth,
- p->auth.auth_level, SENDER_IS_ACCEPTOR, &verf,
- prs_data_p(&p->out_data.frag) + data_pos,
- data_len + ss_padding_len);
+ data = (uint8_t *)prs_data_p(&p->out_data.frag) + data_pos;
- /* Finally marshall the blob. */
+ switch (p->auth.auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = netsec_outgoing_packet(p->auth.a_u.schannel_auth,
+ talloc_tos(),
+ true,
+ data,
+ data_len + ss_padding_len,
+ &blob);
+ break;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = netsec_outgoing_packet(p->auth.a_u.schannel_auth,
+ talloc_tos(),
+ false,
+ data,
+ data_len + ss_padding_len,
+ &blob);
+ break;
+ default:
+ status = NT_STATUS_INTERNAL_ERROR;
+ break;
+ }
- ndr_err = ndr_push_struct_blob(&blob, talloc_tos(), NULL, &verf,
- (ndr_push_flags_fn_t)ndr_push_NL_AUTH_SIGNATURE);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to process packet: %s\n",
+ nt_errstr(status)));
prs_mem_free(&p->out_data.frag);
return false;
}
+ /* Finally marshall the blob. */
+
if (DEBUGLEVEL >= 10) {
- NDR_PRINT_DEBUG(NL_AUTH_SIGNATURE, &verf);
+ dump_NL_AUTH_SIGNATURE(talloc_tos(), &blob);
}
if (!prs_copy_data_in(&p->out_data.frag, (const char *)blob.data, blob.length)) {
prs_mem_free(&p->out_data.frag);
return false;
}
-
- p->auth.a_u.schannel_auth->seq_num++;
}
/*
memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
/* Change the incoming request header to a response. */
- p->hdr.pkt_type = RPC_RESPONSE;
+ p->hdr.pkt_type = DCERPC_PKT_RESPONSE;
/* Set up rpc header flags. */
if (p->out_data.data_sent_length == 0) {
- p->hdr.flags = RPC_FLG_FIRST;
+ p->hdr.flags = DCERPC_PFC_FLAG_FIRST;
} else {
p->hdr.flags = 0;
}
*/
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
- p->hdr.flags |= RPC_FLG_LAST;
+ p->hdr.flags |= DCERPC_PFC_FLAG_LAST;
}
/*
bool create_next_pdu(pipes_struct *p)
{
switch(p->auth.auth_level) {
- case PIPE_AUTH_LEVEL_NONE:
- case PIPE_AUTH_LEVEL_CONNECT:
+ case DCERPC_AUTH_LEVEL_NONE:
+ case DCERPC_AUTH_LEVEL_CONNECT:
/* This is incorrect for auth level connect. Fixme. JRA */
return create_next_pdu_noauth(p);
{
DATA_BLOB session_key, reply;
NTSTATUS status;
- AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+ struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
bool ret;
DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
ZERO_STRUCT(reply);
ensure the underlying NTLMSSP flags are also set. If not we should
refuse the bind. */
- if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
- if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+ if (p->auth.auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
+ if (!auth_ntlmssp_negotiated_sign(a)) {
DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
"but client declined signing.\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
return False;
}
}
- if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
- if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
+ if (p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
+ if (!auth_ntlmssp_negotiated_seal(a)) {
DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
"but client declined sealing.\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
return False;
}
}
DEBUG(5, ("pipe_ntlmssp_verify_final: OK: user: %s domain: %s "
- "workstation: %s\n", a->ntlmssp_state->user,
- a->ntlmssp_state->domain, a->ntlmssp_state->workstation));
-
- if (a->server_info->ptok == NULL) {
- DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
- return False;
- }
+ "workstation: %s\n",
+ auth_ntlmssp_get_username(a),
+ auth_ntlmssp_get_domain(a),
+ auth_ntlmssp_get_client(a)));
TALLOC_FREE(p->server_info);
- p->server_info = copy_serverinfo(p, a->server_info);
+ p->server_info = auth_ntlmssp_server_info(p, a);
if (p->server_info == NULL) {
- DEBUG(0, ("copy_serverinfo failed\n"));
+ DEBUG(0, ("auth_ntlmssp_server_info failed to obtain the server info for authenticated user\n"));
return false;
}
+ if (p->server_info->ptok == NULL) {
+ DEBUG(1,("Error: Authmodule failed to provide nt_user_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
return True;
}
-/*******************************************************************
- The switch table for the pipe names and the functions to handle them.
-*******************************************************************/
-
-struct rpc_table {
- struct {
- const char *clnt;
- const char *srv;
- } pipe;
- struct ndr_syntax_id rpc_interface;
- const struct api_struct *cmds;
- int n_cmds;
-};
-
-static struct rpc_table *rpc_lookup;
-static int rpc_lookup_size;
-
/*******************************************************************
This is the "stage3" NTLMSSP response after a bind request and reply.
*******************************************************************/
bool api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
{
- RPC_HDR_AUTH auth_info;
+ struct dcerpc_auth auth_info;
uint32 pad = 0;
- DATA_BLOB blob;
-
- ZERO_STRUCT(blob);
+ DATA_BLOB auth_blob;
+ uint32_t auth_len = p->hdr.auth_len;
+ NTSTATUS status;
DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
- if (p->hdr.auth_len == 0) {
+ if (auth_len == 0) {
DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
goto err;
}
goto err;
}
+ /* Ensure there's enough data for an authenticated request. */
+ if (RPC_HEADER_LEN + RPC_HDR_AUTH_LEN + auth_len >
+ p->hdr.frag_len) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len "
+ "%u is too large.\n",
+ (unsigned int)auth_len ));
+ goto err;
+ }
+
/*
* Decode the authentication verifier response.
*/
- if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
+ /* Pull the auth header and the following data into a blob. */
+ /* NB. The offset of the auth_header is relative to the *end*
+ * of the packet, not the start. Also, the length of the
+ * data in rpc_in_p is p->hdr.frag_len - RPC_HEADER_LEN,
+ * as the RPC header isn't included in rpc_in_p. */
+ if(!prs_set_offset(rpc_in_p,
+ p->hdr.frag_len - RPC_HEADER_LEN -
+ RPC_HDR_AUTH_LEN - auth_len)) {
+ DEBUG(0,("api_pipe_bind_auth3: cannot move "
+ "offset to %u.\n",
+ (unsigned int)(p->hdr.frag_len -
+ RPC_HDR_AUTH_LEN - auth_len) ));
goto err;
}
- if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
- DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
- (unsigned int)auth_info.auth_type ));
- return False;
+ auth_blob = data_blob_const(prs_data_p(rpc_in_p)
+ + prs_offset(rpc_in_p),
+ prs_data_size(rpc_in_p)
+ - prs_offset(rpc_in_p));
+
+ status = dcerpc_pull_dcerpc_auth(prs_get_mem_context(rpc_in_p),
+ &auth_blob, &auth_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to unmarshall dcerpc_auth.\n"));
+ goto err;
}
- blob = data_blob(NULL,p->hdr.auth_len);
+ /* 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 (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
- DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
- (unsigned int)p->hdr.auth_len ));
- goto err;
+ if (auth_info.auth_type != DCERPC_AUTH_TYPE_NTLMSSP) {
+ DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
+ (unsigned int)auth_info.auth_type ));
+ return False;
}
/*
* for correctness against the given DOMAIN\user name.
*/
- if (!pipe_ntlmssp_verify_final(p, &blob)) {
+ if (!pipe_ntlmssp_verify_final(p, &auth_info.credentials)) {
goto err;
}
- data_blob_free(&blob);
-
p->pipe_bound = True;
return True;
err:
- data_blob_free(&blob);
free_pipe_ntlmssp_auth_data(&p->auth);
p->auth.a_u.auth_ntlmssp_state = NULL;
static bool setup_bind_nak(pipes_struct *p)
{
- RPC_HDR nak_hdr;
- uint16 zero = 0;
+ NTSTATUS status;
+ union dcerpc_payload u;
+ DATA_BLOB blob;
/* Free any memory in the current return data buffer. */
prs_mem_free(&p->out_data.rdata);
* Initialize a bind_nak header.
*/
- init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
+ ZERO_STRUCT(u);
- /*
- * Marshall the header into the outgoing PDU.
- */
+ u.bind_nak.reject_reason = 0;
- if(!smb_io_rpc_hdr("", &nak_hdr, &p->out_data.frag, 0)) {
- DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
+ status = dcerpc_push_ncacn_packet(p->mem_ctx,
+ DCERPC_PKT_BIND_NAK,
+ DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
+ RPC_HEADER_LEN + sizeof(uint16_t) /* FIXME - gd */,
+ 0,
+ p->hdr.call_id,
+ u,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
prs_mem_free(&p->out_data.frag);
return False;
}
- /*
- * Now add the reject reason.
- */
-
- if(!prs_uint16("reject code", &p->out_data.frag, 0, &zero)) {
+ if (!prs_copy_data_in(&p->out_data.frag,
+ (char *)blob.data, blob.length)) {
prs_mem_free(&p->out_data.frag);
return False;
}
if (p->auth.auth_data_free_func) {
(*p->auth.auth_data_free_func)(&p->auth);
}
- p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE;
p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
p->pipe_bound = False;
Marshall a fault pdu.
*******************************************************************/
-bool setup_fault_pdu(pipes_struct *p, NTSTATUS status)
+bool setup_fault_pdu(pipes_struct *p, NTSTATUS fault_status)
{
- RPC_HDR fault_hdr;
- RPC_HDR_RESP hdr_resp;
- RPC_HDR_FAULT fault_resp;
+ NTSTATUS status;
+ union dcerpc_payload u;
+ DATA_BLOB blob;
/* Free any memory in the current return data buffer. */
prs_mem_free(&p->out_data.rdata);
* Initialize a fault header.
*/
- init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
- p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
-
- /*
- * Initialize the HDR_RESP and FAULT parts of the PDU.
- */
-
- memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
-
- fault_resp.status = status;
- fault_resp.reserved = 0;
-
- /*
- * Marshall the header into the outgoing PDU.
- */
+ ZERO_STRUCT(u);
- if(!smb_io_rpc_hdr("", &fault_hdr, &p->out_data.frag, 0)) {
- DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
- prs_mem_free(&p->out_data.frag);
- return False;
- }
+ u.fault.status = NT_STATUS_V(fault_status);
+ u.fault._pad = data_blob_talloc_zero(p->mem_ctx, 4);
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
- DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
+ 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,
+ RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN /* FIXME - gd */,
+ 0,
+ p->hdr.call_id,
+ u,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &p->out_data.frag, 0)) {
- DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
+ if (!prs_copy_data_in(&p->out_data.frag,
+ (char *)blob.data, blob.length)) {
prs_mem_free(&p->out_data.frag);
return False;
}
return True;
}
-#if 0
-/*******************************************************************
- Marshall a cancel_ack pdu.
- We should probably check the auth-verifier here.
-*******************************************************************/
-
-bool setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
-{
- prs_struct outgoing_pdu;
- RPC_HDR ack_reply_hdr;
-
- /* Free any memory in the current return data buffer. */
- prs_mem_free(&p->out_data.rdata);
-
- /*
- * 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.
- */
-
- prs_init_empty( &outgoing_pdu, p->mem_ctx, MARSHALL);
- prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
- /*
- * Initialize a cancel_ack header.
- */
-
- init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id, RPC_HEADER_LEN, 0);
-
- /*
- * Marshall the header into the outgoing PDU.
- */
-
- if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
- DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
- prs_mem_free(&outgoing_pdu);
- return False;
- }
-
- p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
- p->out_data.current_pdu_sent = 0;
-
- prs_mem_free(&outgoing_pdu);
- return True;
-}
-#endif
-
/*******************************************************************
Ensure a bind request has the correct abstract & transfer interface.
Used to reject unknown binds from Win2k.
struct ndr_syntax_id* transfer,
uint32 context_id)
{
- int i=0;
struct pipe_rpc_fns *context_fns;
DEBUG(3,("check_bind_req for %s\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
/* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
-
- for (i=0; i<rpc_lookup_size; i++) {
- DEBUGADD(10, ("checking %s\n", rpc_lookup[i].pipe.clnt));
- if (ndr_syntax_id_equal(
- abstract, &rpc_lookup[i].rpc_interface)
- && ndr_syntax_id_equal(
- transfer, &ndr_transfer_syntax)) {
- break;
- }
- }
-
- if (i == rpc_lookup_size) {
+ if (rpc_srv_pipe_exists_by_id(abstract) &&
+ ndr_syntax_id_equal(transfer, &ndr_transfer_syntax)) {
+ DEBUG(3, ("check_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
+ rpc_srv_get_pipe_cli_name(abstract),
+ rpc_srv_get_pipe_srv_name(abstract)));
+ } else {
return false;
}
return False;
}
- context_fns->cmds = rpc_lookup[i].cmds;
- context_fns->n_cmds = rpc_lookup[i].n_cmds;
+ 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;
/* add to the list of open contexts */
return True;
}
-/*******************************************************************
- Register commands to an RPC pipe
-*******************************************************************/
-
-NTSTATUS rpc_srv_register(int version, const char *clnt, const char *srv,
- const struct ndr_interface_table *iface,
- const struct api_struct *cmds, int size)
-{
- struct rpc_table *rpc_entry;
-
- if (!clnt || !srv || !cmds) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (version != SMB_RPC_INTERFACE_VERSION) {
- DEBUG(0,("Can't register rpc commands!\n"
- "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
- ", while this version of samba uses version %d!\n",
- version,SMB_RPC_INTERFACE_VERSION));
- return NT_STATUS_OBJECT_TYPE_MISMATCH;
- }
-
- /* TODO:
- *
- * we still need to make sure that don't register the same commands twice!!!
- *
- * --metze
- */
-
- /* We use a temporary variable because this call can fail and
- rpc_lookup will still be valid afterwards. It could then succeed if
- called again later */
- rpc_lookup_size++;
- rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
- if (NULL == rpc_entry) {
- rpc_lookup_size--;
- DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
- return NT_STATUS_NO_MEMORY;
- } else {
- rpc_lookup = rpc_entry;
- }
-
- rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
- ZERO_STRUCTP(rpc_entry);
- rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
- rpc_entry->pipe.srv = SMB_STRDUP(srv);
- rpc_entry->rpc_interface = iface->syntax_id;
- rpc_entry->cmds = cmds;
- rpc_entry->n_cmds = size;
-
- return NT_STATUS_OK;
-}
-
/**
* Is a named pipe known?
* @param[in] cli_filename The pipe name requested by the client
bool is_known_pipename(const char *cli_filename, struct ndr_syntax_id *syntax)
{
const char *pipename = cli_filename;
- int i;
+ NTSTATUS status;
if (strnequal(pipename, "\\PIPE\\", 6)) {
pipename += 5;
return false;
}
- for (i=0; i<rpc_lookup_size; i++) {
- if (strequal(pipename, rpc_lookup[i].pipe.clnt)) {
- *syntax = rpc_lookup[i].rpc_interface;
- return true;
- }
+ if (rpc_srv_get_pipe_interface_by_cli_name(pipename, syntax)) {
+ return true;
+ }
+
+ status = smb_probe_module("rpc", pipename);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("is_known_pipename: %s unknown\n", cli_filename));
+ return false;
}
+ DEBUG(10, ("is_known_pipename: %s loaded dynamically\n", pipename));
+
+ /*
+ * Scan the list again for the interface id
+ */
+ if (rpc_srv_get_pipe_interface_by_cli_name(pipename, syntax)) {
+ return true;
+ }
+
+ DEBUG(10, ("is_known_pipename: pipe %s did not register itself!\n",
+ pipename));
- DEBUG(10, ("is_known_pipename: %s unknown\n", cli_filename));
return false;
}
Handle a SPNEGO krb5 bind auth.
*******************************************************************/
-static bool pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
- DATA_BLOB *psecblob, prs_struct *pout_auth)
+static bool pipe_spnego_auth_bind_kerberos(pipes_struct *p,
+ prs_struct *rpc_in_p,
+ struct dcerpc_auth *pauth_info,
+ DATA_BLOB *psecblob,
+ prs_struct *pout_auth)
{
return False;
}
Handle the first part of a SPNEGO bind auth.
*******************************************************************/
-static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
- RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p,
+ prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
+ struct dcerpc_auth *pauth_info,
+ prs_struct *pout_auth)
{
DATA_BLOB blob;
DATA_BLOB secblob;
int i;
NTSTATUS status;
bool got_kerberos_mechanism = false;
- AUTH_NTLMSSP_STATE *a = NULL;
- RPC_HDR_AUTH auth_info;
+ struct auth_ntlmssp_state *a = NULL;
ZERO_STRUCT(secblob);
ZERO_STRUCT(chal);
ZERO_STRUCT(response);
- /* Grab the SPNEGO blob. */
- blob = data_blob(NULL,p->hdr.auth_len);
-
- if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
- DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
- (unsigned int)p->hdr.auth_len ));
- goto err;
- }
-
- if (blob.data[0] != ASN1_APPLICATION(0)) {
+ if (pauth_info->credentials.data[0] != ASN1_APPLICATION(0)) {
goto err;
}
/* parse out the OIDs and the first sec blob */
- if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
+ if (!parse_negTokenTarg(pauth_info->credentials, OIDs, &secblob)) {
DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
goto err;
}
if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || USE_KERBEROS_KEYTAB) ) {
bool ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
data_blob_free(&secblob);
- data_blob_free(&blob);
return ret;
}
goto err;
}
+ switch (pauth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ auth_ntlmssp_want_sign(a);
+ break;
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ auth_ntlmssp_want_seal(a);
+ break;
+ default:
+ break;
+ }
/*
* Pass the first security blob of data to it.
* This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
OID_NTLMSSP);
}
- /* Copy the blob into the pout_auth parse struct */
- init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
- if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
- DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
+ /* auth_pad_len will be handled by the caller */
+
+ status = dcerpc_push_dcerpc_auth(prs_get_mem_context(pout_auth),
+ DCERPC_AUTH_TYPE_SPNEGO,
+ pauth_info->auth_level,
+ ss_padding_len,
+ 1, /* auth_context_id */
+ &response,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Marshalling of dcerpc_auth failed.\n"));
goto err;
}
- if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
+ /* Copy the blob into the pout_auth parse struct */
+ if (!prs_copy_data_in(pout_auth, (char *)blob.data, blob.length)) {
DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
goto err;
}
p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
- data_blob_free(&blob);
data_blob_free(&secblob);
data_blob_free(&chal);
data_blob_free(&response);
err:
- data_blob_free(&blob);
data_blob_free(&secblob);
data_blob_free(&chal);
data_blob_free(&response);
*******************************************************************/
static bool pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
- RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+ uint32_t ss_padding_len,
+ RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
{
RPC_HDR_AUTH auth_info;
DATA_BLOB spnego_blob;
DATA_BLOB auth_blob;
DATA_BLOB auth_reply;
DATA_BLOB response;
- AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+ struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
ZERO_STRUCT(spnego_blob);
ZERO_STRUCT(auth_blob);
/* Generate the spnego "accept completed" blob - no incoming data. */
response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
+ /* FIXME - add auth_pad_len here ! */
+
/* Copy the blob into the pout_auth parse struct */
- init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
+ init_rpc_hdr_auth(&auth_info, DCERPC_AUTH_TYPE_SPNEGO,
+ pauth_info->auth_level, ss_padding_len, 1);
if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
goto err;
Handle an schannel bind auth.
*******************************************************************/
-static bool pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
- RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+static bool pipe_schannel_auth_bind(pipes_struct *p,
+ prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
+ struct dcerpc_auth *auth_info,
+ prs_struct *pout_auth)
{
- RPC_HDR_AUTH auth_info;
+ DATA_BLOB auth_blob;
struct NL_AUTH_MESSAGE neg;
struct NL_AUTH_MESSAGE reply;
bool ret;
enum ndr_err_code ndr_err;
DATA_BLOB blob;
- blob = data_blob_const(prs_data_p(rpc_in_p) + prs_offset(rpc_in_p),
- prs_data_size(rpc_in_p));
-
- ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), NULL, &neg,
- (ndr_pull_flags_fn_t)ndr_pull_NL_AUTH_MESSAGE);
+ ndr_err = ndr_pull_struct_blob(
+ &auth_info->credentials,
+ prs_get_mem_context(pout_auth), &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;
*/
become_root();
- status = schannel_fetch_session_key(p->mem_ctx,
- neg.oem_netbios_computer.a,
- &creds);
+ status = schannel_get_creds_state(p, lp_private_dir(),
+ neg.oem_netbios_computer.a, &creds);
unbecome_root();
if (!NT_STATUS_IS_OK(status)) {
return False;
}
- p->auth.a_u.schannel_auth = talloc(p, struct schannel_auth_struct);
+ p->auth.a_u.schannel_auth = talloc(p, struct schannel_state);
if (!p->auth.a_u.schannel_auth) {
TALLOC_FREE(creds);
return False;
}
- memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
- memcpy(p->auth.a_u.schannel_auth->sess_key, creds->session_key,
- sizeof(creds->session_key));
-
- TALLOC_FREE(creds);
-
+ p->auth.a_u.schannel_auth->state = SCHANNEL_STATE_START;
p->auth.a_u.schannel_auth->seq_num = 0;
+ p->auth.a_u.schannel_auth->initiator = false;
+ p->auth.a_u.schannel_auth->creds = creds;
/*
* JRA. Should we also copy the schannel session key into the pipe session key p->session_key
return false;
}
- init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
- if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
- DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
- return False;
- }
-
/*** SCHANNEL verifier ***/
reply.MessageType = NL_NEGOTIATE_RESPONSE;
* this has any meaning
* here - gd */
- ndr_err = ndr_push_struct_blob(&blob, talloc_tos(), NULL, &reply,
+ ndr_err = ndr_push_struct_blob(&auth_blob, talloc_tos(), &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"));
NDR_PRINT_DEBUG(NL_AUTH_MESSAGE, &reply);
}
+ status = dcerpc_push_dcerpc_auth(prs_get_mem_context(pout_auth),
+ DCERPC_AUTH_TYPE_SCHANNEL,
+ auth_info->auth_level,
+ ss_padding_len,
+ 1, /* auth_context_id */
+ &auth_blob,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Marshalling of dcerpc_auth failed.\n"));
+ return False;
+ }
+
if (!prs_copy_data_in(pout_auth, (const char *)blob.data, blob.length)) {
return false;
}
Handle an NTLMSSP bind auth.
*******************************************************************/
-static bool pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
- RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+static bool pipe_ntlmssp_auth_bind(pipes_struct *p,
+ prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
+ struct dcerpc_auth *auth_info,
+ prs_struct *pout_auth)
{
- RPC_HDR_AUTH auth_info;
DATA_BLOB blob;
DATA_BLOB response;
NTSTATUS status;
- AUTH_NTLMSSP_STATE *a = NULL;
+ struct auth_ntlmssp_state *a = NULL;
- ZERO_STRUCT(blob);
ZERO_STRUCT(response);
- /* Grab the NTLMSSP blob. */
- blob = data_blob(NULL,p->hdr.auth_len);
-
- if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
- DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
- (unsigned int)p->hdr.auth_len ));
- goto err;
- }
-
- if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
- DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
+ if (strncmp((char *)auth_info->credentials.data, "NTLMSSP", 7) != 0) {
+ DEBUG(0, ("Failed to read NTLMSSP in blob\n"));
goto err;
}
goto err;
}
- status = auth_ntlmssp_update(a, blob, &response);
+ switch (auth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ auth_ntlmssp_want_sign(a);
+ break;
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ auth_ntlmssp_want_seal(a);
+ break;
+ default:
+ break;
+ }
+
+ status = auth_ntlmssp_update(a, auth_info->credentials, &response);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
nt_errstr(status) ));
goto err;
}
- data_blob_free(&blob);
-
- /* Copy the blob into the pout_auth parse struct */
- init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
- if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
- DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
+ status = dcerpc_push_dcerpc_auth(prs_get_mem_context(pout_auth),
+ DCERPC_AUTH_TYPE_NTLMSSP,
+ auth_info->auth_level,
+ ss_padding_len,
+ 1, /* auth_context_id */
+ &response,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Marshalling of dcerpc_auth failed.\n"));
goto err;
}
- if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
+ /* Copy the blob into the pout_auth parse struct */
+ if (!prs_copy_data_in(pout_auth, (char *)blob.data, blob.length)) {
DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
goto err;
}
p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
- data_blob_free(&blob);
data_blob_free(&response);
DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
- /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
+ /* We can't set pipe_bound True yet - we need an DCERPC_PKT_AUTH3 response packet... */
return True;
err:
- data_blob_free(&blob);
data_blob_free(&response);
free_pipe_ntlmssp_auth_data(&p->auth);
bool api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
{
RPC_HDR_BA hdr_ba;
- RPC_HDR_RB hdr_rb;
- RPC_HDR_AUTH auth_info;
+ struct dcerpc_bind rpc_bind;
+ DATA_BLOB blob_rb;
+ struct dcerpc_auth auth_info;
+ DATA_BLOB auth_blob;
uint16 assoc_gid;
fstring ack_pipe_name;
prs_struct out_hdr_ba;
prs_struct out_auth;
- int i = 0;
int auth_len = 0;
- unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
+ unsigned int auth_type = DCERPC_AUTH_TYPE_NONE;
+ uint32_t ss_padding_len = 0;
+ NTSTATUS status;
+ struct ndr_syntax_id id;
/* No rebinds on a bound pipe - use alter context. */
if (p->pipe_bound) {
DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound "
- "pipe %s.\n", get_pipe_name_from_iface(&p->syntax)));
+ "pipe %s.\n",
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
return setup_bind_nak(p);
}
DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
- ZERO_STRUCT(hdr_rb);
-
/* decode the bind request */
-
- if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB "
- "struct.\n"));
+ blob_rb = data_blob_const(prs_data_p(rpc_in_p),
+ prs_data_size(rpc_in_p));
+ status = dcerpc_pull_dcerpc_bind(talloc_tos(), &blob_rb, &rpc_bind);
+ if (!NT_STATUS_IS_OK(status)) {
goto err_exit;
}
- if (hdr_rb.num_contexts == 0) {
+ if (rpc_bind.num_contexts == 0) {
DEBUG(0, ("api_pipe_bind_req: no rpc contexts around\n"));
goto err_exit;
}
* Try and find the correct pipe name to ensure
* that this is a pipe name we support.
*/
-
- for (i = 0; i < rpc_lookup_size; i++) {
- if (ndr_syntax_id_equal(&rpc_lookup[i].rpc_interface,
- &hdr_rb.rpc_context[0].abstract)) {
- DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
- break;
- }
- }
-
- if (i == rpc_lookup_size) {
- NTSTATUS status;
-
+ id = rpc_bind.ctx_list[0].abstract_syntax;
+ if (rpc_srv_pipe_exists_by_id(&id)) {
+ DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\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_iface(
- &hdr_rb.rpc_context[0].abstract));
+ "rpc", get_pipe_name_from_syntax(
+ talloc_tos(),
+ &rpc_bind.ctx_list[0].abstract_syntax));
if (NT_STATUS_IS_ERR(status)) {
DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
- get_pipe_name_from_iface(&hdr_rb.rpc_context[0].abstract)));
+ get_pipe_name_from_syntax(
+ talloc_tos(),
+ &rpc_bind.ctx_list[0].abstract_syntax)));
prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
return setup_bind_nak(p);
- }
-
- for (i = 0; i < rpc_lookup_size; i++) {
- if (strequal(rpc_lookup[i].pipe.clnt,
- get_pipe_name_from_iface(&p->syntax))) {
- DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
- break;
- }
- }
-
- if (i == rpc_lookup_size) {
+ }
+
+ if (rpc_srv_get_pipe_interface_by_cli_name(
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax),
+ &id)) {
+ DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\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",
- get_pipe_name_from_iface(&p->syntax),
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax),
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
goto err_exit;
}
}
/* name has to be \PIPE\xxxxx */
fstrcpy(ack_pipe_name, "\\PIPE\\");
- fstrcat(ack_pipe_name, rpc_lookup[i].pipe.srv);
+ fstrcat(ack_pipe_name, rpc_srv_get_pipe_srv_name(&id));
DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
+ if (rpc_bind.assoc_group_id != 0) {
+ assoc_gid = rpc_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,
+ &rpc_bind.ctx_list[0].abstract_syntax,
+ &rpc_bind.ctx_list[0].transfer_syntaxes[0],
+ rpc_bind.ctx_list[0].context_id)) {
+ init_rpc_hdr_ba(&hdr_ba,
+ RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN,
+ assoc_gid,
+ ack_pipe_name,
+ 0x1, 0x0, 0x0,
+ &rpc_bind.ctx_list[0].transfer_syntaxes[0]);
+ } else {
+ /* Rejection reason: abstract syntax not supported */
+ init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN, assoc_gid,
+ ack_pipe_name, 0x1, 0x2, 0x1,
+ &null_ndr_syntax_id);
+ p->pipe_bound = False;
+ }
+
+ /*
+ * and marshall it.
+ */
+
+ if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
+ DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
+ goto err_exit;
+ }
+
/*
* Check if this is an authenticated bind request.
*/
* Decode the authentication verifier.
*/
- if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
+ /* Work out any padding needed before the auth footer. */
+ if ((RPC_HEADER_LEN + prs_offset(&out_hdr_ba)) % SERVER_NDR_PADDING_SIZE) {
+ ss_padding_len = SERVER_NDR_PADDING_SIZE -
+ ((RPC_HEADER_LEN + prs_offset(&out_hdr_ba)) % SERVER_NDR_PADDING_SIZE);
+ DEBUG(10,("api_pipe_bind_req: auth pad_len = %u\n",
+ (unsigned int)ss_padding_len ));
+ }
+
+ /* Quick length check. Won't catch a bad auth footer,
+ * prevents overrun. */
+
+ if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_AUTH_LEN + p->hdr.auth_len) {
+ DEBUG(0,("api_pipe_bind_req: auth_len (%u) "
+ "too long for fragment %u.\n",
+ (unsigned int)p->hdr.auth_len,
+ (unsigned int)p->hdr.frag_len ));
+ goto err_exit;
+ }
+
+ /* Pull the auth header and the following data into a blob. */
+ /* NB. The offset of the auth_header is relative to the *end*
+ * of the packet, not the start. Also, the length of the
+ * data in rpc_in_p is p->hdr.frag_len - RPC_HEADER_LEN,
+ * as the RPC header isn't included in rpc_in_p. */
+ if(!prs_set_offset(rpc_in_p,
+ p->hdr.frag_len - RPC_HEADER_LEN -
+ RPC_HDR_AUTH_LEN - p->hdr.auth_len)) {
+ DEBUG(0,("api_pipe_bind_req: cannot move "
+ "offset to %u.\n",
+ (unsigned int)(p->hdr.frag_len -
+ RPC_HDR_AUTH_LEN - p->hdr.auth_len) ));
+ goto err_exit;
+ }
+
+ auth_blob = data_blob_const(prs_data_p(rpc_in_p)
+ + prs_offset(rpc_in_p),
+ prs_data_size(rpc_in_p)
+ - prs_offset(rpc_in_p));
+
+ status = dcerpc_pull_dcerpc_auth(prs_get_mem_context(rpc_in_p),
+ &auth_blob, &auth_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n"));
goto err_exit;
}
/* Work out if we have to sign or seal etc. */
switch (auth_info.auth_level) {
- case RPC_AUTH_LEVEL_INTEGRITY:
- p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
- break;
- case RPC_AUTH_LEVEL_PRIVACY:
- p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
- break;
- default:
- DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
- (unsigned int)auth_info.auth_level ));
- goto err_exit;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
+ break;
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
+ break;
+ default:
+ DEBUG(0, ("Unexpected auth level (%u).\n",
+ (unsigned int)auth_info.auth_level ));
+ goto err_exit;
}
} else {
ZERO_STRUCT(auth_info);
}
- assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
-
switch(auth_type) {
- case RPC_NTLMSSP_AUTH_TYPE:
- if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
+ case DCERPC_AUTH_TYPE_NTLMSSP:
+ if (!pipe_ntlmssp_auth_bind(p, rpc_in_p,
+ ss_padding_len, &auth_info, &out_auth)) {
goto err_exit;
}
assoc_gid = 0x7a77;
break;
- case RPC_SCHANNEL_AUTH_TYPE:
- if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
+ case DCERPC_AUTH_TYPE_SCHANNEL:
+ if (!pipe_schannel_auth_bind(p, rpc_in_p,
+ ss_padding_len, &auth_info, &out_auth)) {
goto err_exit;
}
break;
- case RPC_SPNEGO_AUTH_TYPE:
- if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p,
+ ss_padding_len, &auth_info, &out_auth)) {
goto err_exit;
}
break;
- case RPC_ANONYMOUS_AUTH_TYPE:
+ case DCERPC_AUTH_TYPE_NONE:
/* Unauthenticated bind request. */
/* We're finished - no more packets. */
p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
/* We must set the pipe auth_level here also. */
- p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE;
p->pipe_bound = True;
/* The session key was initialized from the SMB
* session in make_internal_rpc_pipe_p */
+ ss_padding_len = 0;
break;
default:
DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
goto err_exit;
}
-
- /*
- * 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, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
- hdr_rb.rpc_context[0].context_id )) {
- init_rpc_hdr_ba(&hdr_ba,
- RPC_MAX_PDU_FRAG_LEN,
- RPC_MAX_PDU_FRAG_LEN,
- assoc_gid,
- ack_pipe_name,
- 0x1, 0x0, 0x0,
- &hdr_rb.rpc_context[0].transfer[0]);
- } else {
- /* Rejection reason: abstract syntax not supported */
- init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
- RPC_MAX_PDU_FRAG_LEN, assoc_gid,
- ack_pipe_name, 0x1, 0x2, 0x1,
- &null_ndr_syntax_id);
- p->pipe_bound = False;
- }
-
- /*
- * and marshall it.
- */
-
- if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
- goto err_exit;
- }
-
/*
* Create the header, now we know the length.
*/
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
- init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
+ init_rpc_hdr(&p->hdr, DCERPC_PKT_BIND_ACK, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
p->hdr.call_id,
- RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
+ RPC_HEADER_LEN + prs_offset(&out_hdr_ba) +
+ ss_padding_len + prs_offset(&out_auth),
auth_len);
/*
goto err_exit;
}
- if (auth_len && !prs_append_prs_data( &p->out_data.frag, &out_auth)) {
- DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
- goto err_exit;
+ if (auth_len) {
+ if (ss_padding_len) {
+ char pad[SERVER_NDR_PADDING_SIZE];
+ memset(pad, '\0', SERVER_NDR_PADDING_SIZE);
+ if (!prs_copy_data_in(&p->out_data.frag, pad,
+ ss_padding_len)) {
+ DEBUG(0,("api_pipe_bind_req: failed to add %u "
+ "bytes of pad data.\n",
+ (unsigned int)ss_padding_len));
+ goto err_exit;
+ }
+ }
+
+ if (!prs_append_prs_data( &p->out_data.frag, &out_auth)) {
+ DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
+ goto err_exit;
+ }
}
/*
bool api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
{
RPC_HDR_BA hdr_ba;
- RPC_HDR_RB hdr_rb;
+ struct dcerpc_bind rpc_bind;
+ DATA_BLOB blob_rb;
RPC_HDR_AUTH auth_info;
uint16 assoc_gid;
fstring ack_pipe_name;
prs_struct out_hdr_ba;
prs_struct out_auth;
int auth_len = 0;
+ uint32_t ss_padding_len = 0;
+ NTSTATUS status;
prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
return False;
}
- ZERO_STRUCT(hdr_rb);
-
DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
/* decode the alter context request */
- if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
+ blob_rb = data_blob_const(prs_data_p(rpc_in_p),
+ prs_data_size(rpc_in_p));
+ status = dcerpc_pull_dcerpc_bind(talloc_tos(), &blob_rb, &rpc_bind);
+ if (!NT_STATUS_IS_OK(status)) {
goto err_exit;
}
DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
- /*
- * Check if this is an authenticated alter context request.
- */
-
- if (p->hdr.auth_len != 0) {
- /*
- * Decode the authentication verifier.
- */
-
- if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
- goto err_exit;
- }
-
- /*
- * Currently only the SPNEGO auth type uses the alter ctx
- * response in place of the NTLMSSP auth3 type.
- */
-
- if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
- /* We can only finish if the pipe is unbound. */
- if (!p->pipe_bound) {
- if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
- goto err_exit;
- }
- } else {
- goto err_exit;
- }
- }
+ if (rpc_bind.assoc_group_id != 0) {
+ assoc_gid = rpc_bind.assoc_group_id;
} else {
- ZERO_STRUCT(auth_info);
+ assoc_gid = 0x53f0;
}
- assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
-
/*
* Create the bind response struct.
*/
unknown to NT4)
Needed when adding entries to a DACL from NT5 - SK */
- if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
- hdr_rb.rpc_context[0].context_id )) {
+ if (check_bind_req(p,
+ &rpc_bind.ctx_list[0].abstract_syntax,
+ &rpc_bind.ctx_list[0].transfer_syntaxes[0],
+ rpc_bind.ctx_list[0].context_id)) {
init_rpc_hdr_ba(&hdr_ba,
RPC_MAX_PDU_FRAG_LEN,
RPC_MAX_PDU_FRAG_LEN,
assoc_gid,
ack_pipe_name,
0x1, 0x0, 0x0,
- &hdr_rb.rpc_context[0].transfer[0]);
+ &rpc_bind.ctx_list[0].transfer_syntaxes[0]);
} else {
/* Rejection reason: abstract syntax not supported */
init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
goto err_exit;
}
+
+ /*
+ * Check if this is an authenticated alter context request.
+ */
+
+ if (p->hdr.auth_len != 0) {
+ /*
+ * Decode the authentication verifier.
+ */
+
+ /* Work out any padding needed before the auth footer. */
+ if ((RPC_HEADER_LEN + prs_offset(&out_hdr_ba)) % SERVER_NDR_PADDING_SIZE) {
+ ss_padding_len = SERVER_NDR_PADDING_SIZE -
+ ((RPC_HEADER_LEN + prs_offset(&out_hdr_ba)) % SERVER_NDR_PADDING_SIZE);
+ DEBUG(10,("api_pipe_alter_context: auth pad_len = %u\n",
+ (unsigned int)ss_padding_len ));
+ }
+
+ /* Quick length check. Won't catch a bad auth footer,
+ * prevents overrun. */
+
+ if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_AUTH_LEN + p->hdr.auth_len) {
+ DEBUG(0,("api_pipe_alter_context: auth_len (%u) "
+ "too long for fragment %u.\n",
+ (unsigned int)p->hdr.auth_len,
+ (unsigned int)p->hdr.frag_len ));
+ goto err_exit;
+ }
+
+ /* Pull the auth header and the following data into a blob. */
+ /* NB. The offset of the auth_header is relative to the *end*
+ * of the packet, not the start. Also, the length of the
+ * data in rpc_in_p is p->hdr.frag_len - RPC_HEADER_LEN,
+ * as the RPC header isn't included in rpc_in_p. */
+ if(!prs_set_offset(rpc_in_p,
+ p->hdr.frag_len - RPC_HEADER_LEN -
+ RPC_HDR_AUTH_LEN - p->hdr.auth_len)) {
+ DEBUG(0,("api_alter_context: cannot move "
+ "offset to %u.\n",
+ (unsigned int)(p->hdr.frag_len -
+ RPC_HDR_AUTH_LEN - p->hdr.auth_len) ));
+ goto err_exit;
+ }
+
+ if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
+ goto err_exit;
+ }
+
+ /*
+ * Currently only the SPNEGO auth type uses the alter ctx
+ * response in place of the NTLMSSP auth3 type.
+ */
+
+ if (auth_info.auth_type == DCERPC_AUTH_TYPE_SPNEGO) {
+ /* We can only finish if the pipe is unbound. */
+ if (!p->pipe_bound) {
+ if (!pipe_spnego_auth_bind_continue(p, rpc_in_p,
+ ss_padding_len, &auth_info, &out_auth)) {
+ goto err_exit;
+ }
+ } else {
+ goto err_exit;
+ }
+ }
+ } else {
+ ZERO_STRUCT(auth_info);
+ }
/*
* Create the header, now we know the length.
*/
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
- init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
+ init_rpc_hdr(&p->hdr, DCERPC_PKT_ALTER_RESP, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
p->hdr.call_id,
RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
auth_len);
goto err_exit;
}
- if (auth_len && !prs_append_prs_data(&p->out_data.frag, &out_auth)) {
- DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
- goto err_exit;
+ if (auth_len) {
+ if (ss_padding_len) {
+ char pad[SERVER_NDR_PADDING_SIZE];
+ memset(pad, '\0', SERVER_NDR_PADDING_SIZE);
+ if (!prs_copy_data_in(&p->out_data.frag, pad,
+ ss_padding_len)) {
+ DEBUG(0,("api_pipe_alter_context: failed to add %u "
+ "bytes of pad data.\n",
+ (unsigned int)ss_padding_len));
+ goto err_exit;
+ }
+ }
+
+ if (!prs_append_prs_data( &p->out_data.frag, &out_auth)) {
+ DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
+ goto err_exit;
+ }
}
/*
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
-
return True;
err_exit:
RPC_HDR_AUTH auth_info;
uint32 auth_len = p->hdr.auth_len;
uint32 save_offset = prs_offset(rpc_in);
- AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+ struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
unsigned char *data = NULL;
size_t data_len;
unsigned char *full_packet_data = NULL;
*pstatus = NT_STATUS_OK;
- if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
+ if (p->auth.auth_level == DCERPC_AUTH_LEVEL_NONE || p->auth.auth_level == DCERPC_AUTH_LEVEL_CONNECT) {
return True;
}
}
/* Ensure there's enough data for an authenticated request. */
- if ((auth_len > RPC_MAX_SIGN_SIZE) ||
- (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
+ if (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN
+ + auth_len > p->hdr.frag_len) {
DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
(unsigned int)auth_len ));
*pstatus = NT_STATUS_INVALID_PARAMETER;
/*
* We need the full packet data + length (minus auth stuff) as well as the packet data + length
- * after the RPC header.
+ * after the RPC header.
* We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
* functions as NTLMv2 checks the rpc headers also.
+ * Both of these values include any auth_pad_len bytes.
*/
data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
full_packet_data_len = p->hdr.frag_len - auth_len;
/* Pull the auth header and the following data into a blob. */
- if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
- DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
- (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
+ /* NB. The offset of the auth_header is relative to the *end*
+ * of the packet, not the start. Also, the length of the
+ * data in rpc_in_p is p->hdr.frag_len - RPC_HEADER_LEN,
+ * as the RPC header isn't included in rpc_in_p. */
+ if(!prs_set_offset(rpc_in,
+ p->hdr.frag_len - RPC_HEADER_LEN -
+ RPC_HDR_AUTH_LEN - auth_len)) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move "
+ "offset to %u.\n",
+ (unsigned int)(p->hdr.frag_len -
+ RPC_HDR_AUTH_LEN - auth_len) ));
*pstatus = NT_STATUS_INVALID_PARAMETER;
return False;
}
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
- DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to "
+ "unmarshall RPC_HDR_AUTH.\n"));
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
+ return False;
+ }
+
+ /* Ensure auth_pad_len fits into the packet. */
+ if (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + auth_info.auth_pad_len +
+ RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_info.auth_pad_len "
+ "too large (%u), auth_len (%u), frag_len = (%u).\n",
+ (unsigned int)auth_info.auth_pad_len,
+ (unsigned int)auth_len,
+ (unsigned int)p->hdr.frag_len ));
*pstatus = NT_STATUS_INVALID_PARAMETER;
return False;
}
auth_blob.length = auth_len;
switch (p->auth.auth_level) {
- case PIPE_AUTH_LEVEL_PRIVACY:
+ case DCERPC_AUTH_LEVEL_PRIVACY:
/* Data is encrypted. */
- *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
- data, data_len,
- full_packet_data,
- full_packet_data_len,
- &auth_blob);
+ *pstatus = auth_ntlmssp_unseal_packet(a,
+ data, data_len,
+ full_packet_data,
+ full_packet_data_len,
+ &auth_blob);
if (!NT_STATUS_IS_OK(*pstatus)) {
return False;
}
break;
- case PIPE_AUTH_LEVEL_INTEGRITY:
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
/* Data is signed. */
- *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
- data, data_len,
- full_packet_data,
- full_packet_data_len,
- &auth_blob);
+ *pstatus = auth_ntlmssp_check_packet(a,
+ data, data_len,
+ full_packet_data,
+ full_packet_data_len,
+ &auth_blob);
if (!NT_STATUS_IS_OK(*pstatus)) {
return False;
}
uint32 auth_len;
uint32 save_offset = prs_offset(rpc_in);
RPC_HDR_AUTH auth_info;
- struct NL_AUTH_SIGNATURE schannel_chk;
- enum ndr_err_code ndr_err;
DATA_BLOB blob;
+ NTSTATUS status;
+ uint8_t *data;
auth_len = p->hdr.auth_len;
/*
* The following is that length of the data we must verify or unseal.
* This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
- * preceeding the auth_data.
+ * preceeding the auth_data, but does include the auth_pad_len bytes.
*/
if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
DEBUG(5,("data %d auth %d\n", data_len, auth_len));
- if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
- DEBUG(0,("cannot move offset to %u.\n",
- (unsigned int)RPC_HDR_REQ_LEN + data_len ));
+ /* Pull the auth header and the following data into a blob. */
+ /* NB. The offset of the auth_header is relative to the *end*
+ * of the packet, not the start. Also, the length of the
+ * data in rpc_in_p is p->hdr.frag_len - RPC_HEADER_LEN,
+ * as the RPC header isn't included in rpc_in_p. */
+ if(!prs_set_offset(rpc_in,
+ p->hdr.frag_len - RPC_HEADER_LEN -
+ RPC_HDR_AUTH_LEN - auth_len)) {
+ DEBUG(0,("api_pipe_schannel_process: cannot move "
+ "offset to %u.\n",
+ (unsigned int)(p->hdr.frag_len -
+ RPC_HDR_AUTH_LEN - auth_len) ));
return False;
}
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
- DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
+ DEBUG(0,("api_pipe_schannel_process: failed to "
+ "unmarshall RPC_HDR_AUTH.\n"));
+ return False;
+ }
+
+ /* Ensure auth_pad_len fits into the packet. */
+ if (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + auth_info.auth_pad_len +
+ RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len) {
+ DEBUG(0,("api_pipe_schannel_process: auth_info.auth_pad_len "
+ "too large (%u), auth_len (%u), frag_len = (%u).\n",
+ (unsigned int)auth_info.auth_pad_len,
+ (unsigned int)auth_len,
+ (unsigned int)p->hdr.frag_len ));
return False;
}
- if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
+ if (auth_info.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
DEBUG(0,("Invalid auth info %d on schannel\n",
auth_info.auth_type));
return False;
}
- blob = data_blob_const(prs_data_p(rpc_in) + prs_offset(rpc_in), data_len);
-
- ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), NULL, &schannel_chk,
- (ndr_pull_flags_fn_t)ndr_pull_NL_AUTH_SIGNATURE);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- return false;
- }
+ blob = data_blob_const(prs_data_p(rpc_in) + prs_offset(rpc_in), auth_len);
if (DEBUGLEVEL >= 10) {
- NDR_PRINT_DEBUG(NL_AUTH_SIGNATURE, &schannel_chk);
+ dump_NL_AUTH_SIGNATURE(talloc_tos(), &blob);
+ }
+
+ data = (uint8_t *)prs_data_p(rpc_in)+RPC_HDR_REQ_LEN;
+
+ switch (auth_info.auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = netsec_incoming_packet(p->auth.a_u.schannel_auth,
+ talloc_tos(),
+ true,
+ data,
+ data_len,
+ &blob);
+ break;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = netsec_incoming_packet(p->auth.a_u.schannel_auth,
+ talloc_tos(),
+ false,
+ data,
+ data_len,
+ &blob);
+ break;
+ default:
+ status = NT_STATUS_INTERNAL_ERROR;
+ break;
}
- if (!schannel_decode(p->auth.a_u.schannel_auth,
- p->auth.auth_level,
- SENDER_IS_INITIATOR,
- &schannel_chk,
- prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
- DEBUG(3,("failed to decode PDU\n"));
- return False;
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("failed to unseal packet: %s\n", nt_errstr(status)));
+ return false;
}
/*
return False;
}
- /* The sequence number gets incremented on both send and receive. */
- p->auth.a_u.schannel_auth->seq_num++;
-
/*
* Remember the padding length. We must remove it from the real data
* stream once the sign/seal is done.
}
DEBUG(5, ("Requested \\PIPE\\%s\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
/* get the set of RPC functions for this context */
else {
DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
p->hdr_req.context_id,
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
}
if (changed_user) {
/* interpret the command */
DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
- get_pipe_name_from_iface(&p->syntax), p->hdr_req.opnum));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
+ p->hdr_req.opnum));
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "in_%s",
- get_pipe_name_from_iface(&p->syntax));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax));
prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
}
/* do the actual command */
if(!api_rpc_cmds[fn_num].fn(p)) {
DEBUG(0,("api_rpcTNP: %s: %s failed.\n",
- get_pipe_name_from_iface(&p->syntax),
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
api_rpc_cmds[fn_num].name));
prs_mem_free(&p->out_data.rdata);
return False;
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "out_%s",
- get_pipe_name_from_iface(&p->syntax));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax));
prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
}
prs_set_offset(&p->out_data.rdata, offset2);
DEBUG(5,("api_rpcTNP: called %s successfully\n",
- get_pipe_name_from_iface(&p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
/* Check for buffer underflow in rpc parsing */