/*
* 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 "../librpc/gen_ndr/ndr_schannel.h"
+#include "../libcli/auth/schannel.h"
+#include "../libcli/auth/spnego.h"
+#include "ntlmssp.h"
extern struct current_user current_user;
uint32 data_space_available;
uint32 data_len_left;
uint32 data_len;
- prs_struct outgoing_pdu;
NTSTATUS status;
DATA_BLOB auth_blob;
RPC_HDR_AUTH auth_info;
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 = sizeof(p->out_data.current_pdu) - 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;
}
/*
* data.
*/
- 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);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/* Store the header in the data stream. */
- if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Copy the data into the PDU. */
- if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
+ if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
+ p->out_data.data_sent_length, data_len)) {
DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Copy the sign/seal padding data. */
if (ss_padding_len) {
- char pad[8];
+ char pad[SERVER_NDR_PADDING_SIZE];
- memset(pad, '\0', 8);
- if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
+ 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",
(unsigned int)ss_padding_len));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
}
/* 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, &outgoing_pdu, 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(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Generate the sign blob. */
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,
- (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
- data_len + ss_padding_len,
- (unsigned char *)prs_data_p(&outgoing_pdu),
- (size_t)prs_offset(&outgoing_pdu),
- &auth_blob);
+ status = ntlmssp_seal_packet(
+ a->ntlmssp_state,
+ (uint8_t *)prs_data_p(&p->out_data.frag)
+ + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
+ data_len + ss_padding_len,
+ (unsigned char *)prs_data_p(&p->out_data.frag),
+ (size_t)prs_offset(&p->out_data.frag),
+ &auth_blob);
if (!NT_STATUS_IS_OK(status)) {
data_blob_free(&auth_blob);
- prs_mem_free(&outgoing_pdu);
+ 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,
- (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
- data_len + ss_padding_len,
- (unsigned char *)prs_data_p(&outgoing_pdu),
- (size_t)prs_offset(&outgoing_pdu),
- &auth_blob);
+ status = ntlmssp_sign_packet(
+ a->ntlmssp_state,
+ (unsigned char *)prs_data_p(&p->out_data.frag)
+ + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
+ data_len + ss_padding_len,
+ (unsigned char *)prs_data_p(&p->out_data.frag),
+ (size_t)prs_offset(&p->out_data.frag),
+ &auth_blob);
if (!NT_STATUS_IS_OK(status)) {
data_blob_free(&auth_blob);
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
break;
default:
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Append the auth blob. */
- if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
+ if (!prs_copy_data_in(&p->out_data.frag, (char *)auth_blob.data,
+ 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);
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
*/
p->out_data.data_sent_length += data_len;
- p->out_data.current_pdu_len = p->hdr.frag_len;
p->out_data.current_pdu_sent = 0;
- prs_mem_free(&outgoing_pdu);
return True;
}
uint32 data_len;
uint32 data_space_available;
uint32 data_len_left;
- prs_struct outgoing_pdu;
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;
}
- data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
- RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
+ /* 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;
/*
* 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_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 +
* data.
*/
- 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);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/* Store the header in the data stream. */
- if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Store the current offset. */
- data_pos = prs_offset(&outgoing_pdu);
+ data_pos = prs_offset(&p->out_data.frag);
/* Copy the data into the PDU. */
- if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
+ if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
+ p->out_data.data_sent_length, data_len)) {
DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Copy the sign/seal padding data. */
if (ss_padding_len) {
- char pad[8];
- memset(pad, '\0', 8);
- if (!prs_copy_data_in(&outgoing_pdu, pad, 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,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
}
/*
* Schannel processing.
*/
- char *data;
RPC_HDR_AUTH auth_info;
- RPC_AUTH_SCHANNEL_CHK verf;
+ DATA_BLOB blob;
+ uint8_t *data;
- data = prs_data_p(&outgoing_pdu) + data_pos;
/* 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, &outgoing_pdu, 0)) {
+ 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(&outgoing_pdu);
+ 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, data, data_len + ss_padding_len);
+ data = (uint8_t *)prs_data_p(&p->out_data.frag) + data_pos;
- if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
- &verf, &outgoing_pdu, 0)) {
- prs_mem_free(&outgoing_pdu);
- return False;
+ 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;
+ }
+
+ 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;
}
- p->auth.a_u.schannel_auth->seq_num++;
+ /* Finally marshall the blob. */
+
+ if (DEBUGLEVEL >= 10) {
+ 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->out_data.data_sent_length += data_len;
- p->out_data.current_pdu_len = p->hdr.frag_len;
p->out_data.current_pdu_sent = 0;
- prs_mem_free(&outgoing_pdu);
return True;
}
uint32 data_len;
uint32 data_space_available;
uint32 data_len_left;
- prs_struct outgoing_pdu;
/*
* 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 = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
+ data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
+ - RPC_HDR_RESP_LEN;
/*
* The amount we send is the minimum of the available
*/
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;
}
/*
* data.
*/
- 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);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/* Store the header in the data stream. */
- if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
/* Copy the data into the PDU. */
- if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
+ if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
+ p->out_data.data_sent_length, data_len)) {
DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
*/
p->out_data.data_sent_length += data_len;
- p->out_data.current_pdu_len = p->hdr.frag_len;
p->out_data.current_pdu_sent = 0;
- prs_mem_free(&outgoing_pdu);
return True;
}
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);
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 (p->auth.auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) {
if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
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 (p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
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;
}
}
RPC_HDR_AUTH auth_info;
uint32 pad = 0;
DATA_BLOB blob;
+ uint32_t auth_len = p->hdr.auth_len;
ZERO_STRUCT(blob);
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(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_auth3: failed to "
+ "unmarshall RPC_HDR_AUTH.\n"));
goto err;
}
- if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
+ /* 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 != DCERPC_AUTH_TYPE_NTLMSSP) {
DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
(unsigned int)auth_info.auth_type ));
return False;
static bool setup_bind_nak(pipes_struct *p)
{
- prs_struct outgoing_rpc;
RPC_HDR nak_hdr;
uint16 zero = 0;
* header and are never sending more than one PDU here.
*/
- prs_init_empty( &outgoing_rpc, p->mem_ctx, MARSHALL);
- prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/*
* Initialize a bind_nak header.
*/
- init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
+ init_rpc_hdr(&nak_hdr, DCERPC_PKT_BIND_NAK, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
/*
* Marshall the header into the outgoing PDU.
*/
- if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
+ if(!smb_io_rpc_hdr("", &nak_hdr, &p->out_data.frag, 0)) {
DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
return False;
}
* Now add the reject reason.
*/
- if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
- prs_mem_free(&outgoing_rpc);
+ if(!prs_uint16("reject code", &p->out_data.frag, 0, &zero)) {
+ prs_mem_free(&p->out_data.frag);
return False;
}
p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
p->out_data.current_pdu_sent = 0;
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;
bool setup_fault_pdu(pipes_struct *p, NTSTATUS status)
{
- prs_struct outgoing_pdu;
RPC_HDR fault_hdr;
RPC_HDR_RESP hdr_resp;
RPC_HDR_FAULT fault_resp;
* 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);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/*
* Initialize a fault header.
*/
- init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
+ init_rpc_hdr(&fault_hdr, DCERPC_PKT_FAULT, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | DCERPC_PFC_FLAG_DID_NOT_EXECUTE,
p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
/*
* Marshall the header into the outgoing PDU.
*/
- if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
+ 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(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ 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"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
return False;
}
- if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
+ 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"));
- prs_mem_free(&outgoing_pdu);
+ prs_mem_free(&p->out_data.frag);
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;
}
* Initialize a cancel_ack header.
*/
- init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
+ init_rpc_hdr(&ack_reply_hdr, DCERPC_PKT_CANCEL_ACK, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
p->hdr.call_id, RPC_HEADER_LEN, 0);
/*
Used to reject unknown binds from Win2k.
*******************************************************************/
-bool check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
- RPC_IFACE* transfer, uint32 context_id)
+static bool check_bind_req(struct pipes_struct *p,
+ struct ndr_syntax_id* abstract,
+ 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 */
{
const char *pipename = cli_filename;
int i;
+ NTSTATUS status;
if (strnequal(pipename, "\\PIPE\\", 6)) {
pipename += 5;
}
}
- DEBUG(10, ("is_known_pipename: %s unknown\n", cli_filename));
+ 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
+ */
+
+ for (i=0; i<rpc_lookup_size; i++) {
+ if (strequal(pipename, rpc_lookup[i].pipe.clnt)) {
+ *syntax = rpc_lookup[i].rpc_interface;
+ return true;
+ }
+ }
+
+ DEBUG(10, ("is_known_pipename: pipe %s did not register itself!\n",
+ pipename));
+
return false;
}
*******************************************************************/
static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
{
DATA_BLOB blob;
OID_NTLMSSP);
}
+ /* auth_pad_len will be handled by the caller */
+
/* 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_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
goto err;
*******************************************************************/
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;
/* 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;
*******************************************************************/
static bool pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
{
RPC_HDR_AUTH auth_info;
- RPC_AUTH_SCHANNEL_NEG neg;
- RPC_AUTH_VERIFIER auth_verifier;
+ struct NL_AUTH_MESSAGE neg;
+ struct NL_AUTH_MESSAGE reply;
bool ret;
- struct dcinfo *pdcinfo;
- uint32 flags;
+ NTSTATUS status;
+ struct netlogon_creds_CredentialState *creds;
DATA_BLOB session_key;
+ enum ndr_err_code ndr_err;
+ DATA_BLOB blob;
- if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
+ 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);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
- return False;
+ return false;
+ }
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(NL_AUTH_MESSAGE, &neg);
+ }
+
+ if (!(neg.Flags & NL_FLAG_OEM_NETBIOS_COMPUTER_NAME)) {
+ DEBUG(0,("pipe_schannel_auth_bind: Did not receive netbios computer name\n"));
+ return false;
}
/*
- * The neg.myname key here must match the remote computer name
+ * The neg.oem_netbios_computer.a key here must match the remote computer name
* given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
* operations that use credentials.
*/
become_root();
- ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
+ status = schannel_get_creds_state(p, NULL, lp_private_dir(),
+ neg.oem_netbios_computer.a,
+ &creds);
unbecome_root();
- if (!ret) {
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
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(pdcinfo);
+ 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, pdcinfo->sess_key,
- sizeof(pdcinfo->sess_key));
-
- TALLOC_FREE(pdcinfo);
-
+ 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);
+ init_rpc_hdr_auth(&auth_info, DCERPC_AUTH_TYPE_SCHANNEL,
+ pauth_info->auth_level, ss_padding_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 ***/
- init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
- if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
- DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
- return False;
+ reply.MessageType = NL_NEGOTIATE_RESPONSE;
+ reply.Flags = 0;
+ reply.Buffer.dummy = 5; /* ??? actually I don't think
+ * this has any meaning
+ * here - gd */
+
+ ndr_err = ndr_push_struct_blob(&blob, talloc_tos(), NULL, &reply,
+ (ndr_push_flags_fn_t)ndr_push_NL_AUTH_MESSAGE);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,("Failed to marshall NL_AUTH_MESSAGE.\n"));
+ return false;
}
- prs_align(pout_auth);
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(NL_AUTH_MESSAGE, &reply);
+ }
- flags = 5;
- if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
- return False;
+ if (!prs_copy_data_in(pout_auth, (const char *)blob.data, blob.length)) {
+ return false;
}
DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
- neg.domain, neg.myname));
+ neg.oem_netbios_domain.a, neg.oem_netbios_computer.a));
/* We're finished with this bind - no more packets. */
p->auth.auth_data_free_func = NULL;
*******************************************************************/
static bool pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
+ uint32_t ss_padding_len,
RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
{
RPC_HDR_AUTH auth_info;
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);
+ init_rpc_hdr_auth(&auth_info, DCERPC_AUTH_TYPE_NTLMSSP,
+ pauth_info->auth_level, ss_padding_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"));
goto err;
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:
fstring ack_pipe_name;
prs_struct out_hdr_ba;
prs_struct out_auth;
- prs_struct outgoing_rpc;
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;
/* 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);
}
- prs_init_empty( &outgoing_rpc, p->mem_ctx, MARSHALL);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/*
* Marshall directly into the outgoing PDU space. We
* header and are never sending more than one PDU here.
*/
- prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
/*
* Setup the memory to marshall the ba header, and the
* auth footers.
if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
return False;
}
if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
return False;
}
NTSTATUS status;
status = smb_probe_module(
- "rpc", get_pipe_name_from_iface(
+ "rpc", get_pipe_name_from_syntax(
+ talloc_tos(),
&hdr_rb.rpc_context[0].abstract));
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)));
- prs_mem_free(&outgoing_rpc);
+ get_pipe_name_from_syntax(
+ talloc_tos(),
+ &hdr_rb.rpc_context[0].abstract)));
+ prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
for (i = 0; i < rpc_lookup_size; i++) {
if (strequal(rpc_lookup[i].pipe.clnt,
- get_pipe_name_from_iface(&p->syntax))) {
+ get_pipe_name_from_syntax(talloc_tos(),
+ &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) {
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;
}
}
DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
+ assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.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, &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;
+ }
+
/*
* Check if this is an authenticated bind request.
*/
* 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_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;
+ }
+
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"));
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;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
break;
- case RPC_AUTH_LEVEL_PRIVACY:
- p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
break;
default:
DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
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 {
- RPC_IFACE null_interface;
- ZERO_STRUCT(null_interface);
- /* 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_interface);
- 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);
/*
* Marshall the header into the outgoing PDU.
*/
- if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
+ if(!smb_io_rpc_hdr("", &p->hdr, &p->out_data.frag, 0)) {
DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
goto err_exit;
}
* Now add the RPC_HDR_BA and any auth needed.
*/
- if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
+ if(!prs_append_prs_data(&p->out_data.frag, &out_hdr_ba)) {
DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
goto err_exit;
}
- if (auth_len && !prs_append_prs_data( &outgoing_rpc, &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;
+ }
}
/*
*/
p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
p->out_data.current_pdu_sent = 0;
prs_mem_free(&out_hdr_ba);
err_exit:
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
return setup_bind_nak(p);
fstring ack_pipe_name;
prs_struct out_hdr_ba;
prs_struct out_auth;
- prs_struct outgoing_rpc;
int auth_len = 0;
+ uint32_t ss_padding_len = 0;
- prs_init_empty( &outgoing_rpc, p->mem_ctx, MARSHALL);
+ prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
/*
* Marshall directly into the outgoing PDU space. We
* header and are never sending more than one PDU here.
*/
- prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
/*
* Setup the memory to marshall the ba header, and the
* auth footers.
if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
return False;
}
if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
return False;
}
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;
- }
- }
- } else {
- ZERO_STRUCT(auth_info);
- }
-
assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
/*
0x1, 0x0, 0x0,
&hdr_rb.rpc_context[0].transfer[0]);
} else {
- RPC_IFACE null_interface;
- ZERO_STRUCT(null_interface);
/* 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_interface);
+ &null_ndr_syntax_id);
p->pipe_bound = False;
}
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);
* Marshall the header into the outgoing PDU.
*/
- if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
+ if(!smb_io_rpc_hdr("", &p->hdr, &p->out_data.frag, 0)) {
DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
goto err_exit;
}
* Now add the RPC_HDR_BA and any auth needed.
*/
- if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
+ if(!prs_append_prs_data(&p->out_data.frag, &out_hdr_ba)) {
DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
goto err_exit;
}
- if (auth_len && !prs_append_prs_data( &outgoing_rpc, &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;
+ }
}
/*
*/
p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
p->out_data.current_pdu_sent = 0;
prs_mem_free(&out_hdr_ba);
err_exit:
- prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
return setup_bind_nak(p);
*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,
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,
uint32 auth_len;
uint32 save_offset = prs_offset(rpc_in);
RPC_HDR_AUTH auth_info;
- RPC_AUTH_SCHANNEL_CHK schannel_chk;
+ DATA_BLOB blob;
+ NTSTATUS status;
+ uint8_t *data;
auth_len = p->hdr.auth_len;
- if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
+ if (auth_len < RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN ||
+ auth_len > RPC_HEADER_LEN +
+ RPC_HDR_REQ_LEN +
+ RPC_HDR_AUTH_LEN +
+ auth_len) {
DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
return False;
}
/*
* 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;
}
- if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
- DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
- return False;
+ blob = data_blob_const(prs_data_p(rpc_in) + prs_offset(rpc_in), auth_len);
+
+ if (DEBUGLEVEL >= 10) {
+ dump_NL_AUTH_SIGNATURE(talloc_tos(), &blob);
}
- 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;
+ 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 (!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 */
git.samba.org / samba.git / blobdiff