data_len + ss_padding_len +
RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE,
NTLMSSP_SIG_SIZE,
- p->hdr.call_id,
+ p->call_id,
&hdr);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to marshall RPC Header.\n"));
RPC_HDR_AUTH_LEN +
RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
- p->hdr.call_id,
+ p->call_id,
&hdr);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to marshall RPC Header.\n"));
hdr_flags,
RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len,
0,
- p->hdr.call_id,
+ p->call_id,
&hdr);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to marshall RPC Header.\n"));
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)
+bool api_pipe_bind_auth3(pipes_struct *p, struct ncacn_packet *pkt)
{
struct dcerpc_auth auth_info;
- uint32 pad = 0;
- DATA_BLOB auth_blob;
- uint32_t auth_len = p->hdr.auth_len;
+ uint32_t auth_len = pkt->auth_length;
NTSTATUS status;
DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
goto err;
}
- /* 4 bytes padding. */
- if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
- DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
- 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) {
+ pkt->frag_length) {
DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len "
"%u is too large.\n",
(unsigned int)auth_len ));
* Decode the authentication verifier response.
*/
- /* 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;
- }
-
- 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);
+ status = dcerpc_pull_dcerpc_auth(pkt,
+ &pkt->u.auth3.auth_info,
+ &auth_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to unmarshall dcerpc_auth.\n"));
goto err;
DCERPC_PFC_FLAG_FIRST |
DCERPC_PFC_FLAG_LAST,
0,
- p->hdr.call_id,
+ p->call_id,
u,
&blob);
if (!NT_STATUS_IS_OK(status)) {
DCERPC_PFC_FLAG_LAST |
DCERPC_PFC_FLAG_DID_NOT_EXECUTE,
0,
- p->hdr.call_id,
+ p->call_id,
u,
&blob);
if (!NT_STATUS_IS_OK(status)) {
*******************************************************************/
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)
*******************************************************************/
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)
DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
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);
+ bool ret;
+ ret = pipe_spnego_auth_bind_kerberos(p, pauth_info,
+ &secblob, pout_auth);
data_blob_free(&secblob);
return ret;
}
Handle the second part of a SPNEGO bind auth.
*******************************************************************/
-static bool pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
- uint32_t ss_padding_len,
- RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+static bool pipe_spnego_auth_bind_continue(pipes_struct *p,
+ uint32_t ss_padding_len,
+ struct dcerpc_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;
struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
- ZERO_STRUCT(spnego_blob);
ZERO_STRUCT(auth_blob);
ZERO_STRUCT(auth_reply);
ZERO_STRUCT(response);
goto err;
}
- /* Grab the SPNEGO blob. */
- spnego_blob = data_blob(NULL,p->hdr.auth_len);
-
- if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
- DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
- (unsigned int)p->hdr.auth_len ));
- goto err;
- }
-
- if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
+ if (pauth_info->credentials.data[0] != ASN1_CONTEXT(1)) {
DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
goto err;
}
- if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
+ if (!spnego_parse_auth(pauth_info->credentials, &auth_blob)) {
DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
goto err;
}
goto err;
}
- data_blob_free(&spnego_blob);
data_blob_free(&auth_blob);
/* Generate the spnego "accept completed" blob - no incoming data. */
err:
- data_blob_free(&spnego_blob);
data_blob_free(&auth_blob);
data_blob_free(&auth_reply);
data_blob_free(&response);
*******************************************************************/
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)
*******************************************************************/
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)
Respond to a pipe bind request.
*******************************************************************/
-bool api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
+bool api_pipe_bind_req(pipes_struct *p, struct ncacn_packet *pkt)
{
+ RPC_HDR hdr;
RPC_HDR_BA hdr_ba;
- 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;
return False;
}
- DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
-
- /* decode the bind request */
- 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 (rpc_bind.num_contexts == 0) {
+ if (pkt->u.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.
*/
- id = rpc_bind.ctx_list[0].abstract_syntax;
+ id = pkt->u.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),
status = smb_probe_module(
"rpc", get_pipe_name_from_syntax(
talloc_tos(),
- &rpc_bind.ctx_list[0].abstract_syntax));
+ &pkt->u.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_syntax(
talloc_tos(),
- &rpc_bind.ctx_list[0].abstract_syntax)));
+ &pkt->u.bind.ctx_list[0].abstract_syntax)));
prs_mem_free(&p->out_data.frag);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
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;
+ if (pkt->u.bind.assoc_group_id != 0) {
+ assoc_gid = pkt->u.bind.assoc_group_id;
} else {
assoc_gid = 0x53f0;
}
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)) {
+ &pkt->u.bind.ctx_list[0].abstract_syntax,
+ &pkt->u.bind.ctx_list[0].transfer_syntaxes[0],
+ pkt->u.bind.ctx_list[0].context_id)) {
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]);
+ &pkt->u.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,
* Check if this is an authenticated bind request.
*/
- if (p->hdr.auth_len) {
+ if (pkt->auth_length) {
/*
* Decode the authentication verifier.
*/
/* 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) {
+ if (pkt->frag_length < RPC_HEADER_LEN +
+ RPC_HDR_AUTH_LEN +
+ pkt->auth_length) {
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) ));
+ (unsigned int)pkt->auth_length,
+ (unsigned int)pkt->frag_length));
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);
+ status = dcerpc_pull_dcerpc_auth(pkt,
+ &pkt->u.bind.auth_info,
+ &auth_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n"));
goto err_exit;
switch(auth_type) {
case DCERPC_AUTH_TYPE_NTLMSSP:
- if (!pipe_ntlmssp_auth_bind(p, rpc_in_p,
- ss_padding_len, &auth_info, &out_auth)) {
+ if (!pipe_ntlmssp_auth_bind(p, ss_padding_len,
+ &auth_info, &out_auth)) {
goto err_exit;
}
assoc_gid = 0x7a77;
break;
case DCERPC_AUTH_TYPE_SCHANNEL:
- if (!pipe_schannel_auth_bind(p, rpc_in_p,
- ss_padding_len, &auth_info, &out_auth)) {
+ if (!pipe_schannel_auth_bind(p, ss_padding_len,
+ &auth_info, &out_auth)) {
goto err_exit;
}
break;
case DCERPC_AUTH_TYPE_SPNEGO:
- if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p,
- ss_padding_len, &auth_info, &out_auth)) {
+ if (!pipe_spnego_auth_bind_negotiate(p,
+ ss_padding_len,
+ &auth_info, &out_auth)) {
goto err_exit;
}
break;
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
- init_rpc_hdr(&p->hdr, DCERPC_PKT_BIND_ACK, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
- p->hdr.call_id,
+ init_rpc_hdr(&hdr,
+ DCERPC_PKT_BIND_ACK,
+ DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
+ pkt->call_id,
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, &p->out_data.frag, 0)) {
+ if (!smb_io_rpc_hdr("", &hdr, &p->out_data.frag, 0)) {
DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
goto err_exit;
}
SPNEGO calls.
****************************************************************************/
-bool api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
+bool api_pipe_alter_context(pipes_struct *p, struct ncacn_packet *pkt)
{
+ RPC_HDR hdr;
RPC_HDR_BA hdr_ba;
- struct dcerpc_bind rpc_bind;
- DATA_BLOB blob_rb;
- RPC_HDR_AUTH auth_info;
+ struct dcerpc_auth auth_info;
uint16 assoc_gid;
fstring ack_pipe_name;
prs_struct out_hdr_ba;
return False;
}
- DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
-
- /* decode the alter context request */
- 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;
- }
-
/* secondary address CAN be NULL
* as the specs say it's ignored.
* It MUST be NULL to have the spoolss working.
DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
- if (rpc_bind.assoc_group_id != 0) {
- assoc_gid = rpc_bind.assoc_group_id;
+ if (pkt->u.bind.assoc_group_id != 0) {
+ assoc_gid = pkt->u.bind.assoc_group_id;
} else {
assoc_gid = 0x53f0;
}
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)) {
+ &pkt->u.bind.ctx_list[0].abstract_syntax,
+ &pkt->u.bind.ctx_list[0].transfer_syntaxes[0],
+ pkt->u.bind.ctx_list[0].context_id)) {
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]);
+ &pkt->u.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,
* Check if this is an authenticated alter context request.
*/
- if (p->hdr.auth_len != 0) {
+ if (pkt->auth_length != 0) {
/*
* Decode the authentication verifier.
*/
/* 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) {
+ if (pkt->frag_length < RPC_HEADER_LEN +
+ RPC_HDR_AUTH_LEN +
+ pkt->auth_length) {
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 ));
+ (unsigned int)pkt->auth_length,
+ (unsigned int)pkt->frag_length ));
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) ));
+ status = dcerpc_pull_dcerpc_auth(pkt,
+ &pkt->u.bind.auth_info,
+ &auth_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n"));
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
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)) {
+ if (!pipe_spnego_auth_bind_continue(p,
+ ss_padding_len,
+ &auth_info, &out_auth)) {
goto err_exit;
}
} else {
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
- init_rpc_hdr(&p->hdr, DCERPC_PKT_ALTER_RESP, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
- p->hdr.call_id,
+ init_rpc_hdr(&hdr, DCERPC_PKT_ALTER_RESP, DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST,
+ pkt->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, &p->out_data.frag, 0)) {
+ if(!smb_io_rpc_hdr("", &hdr, &p->out_data.frag, 0)) {
DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
goto err_exit;
}
return;
}
-static bool api_rpcTNP(pipes_struct *p,
+static bool api_rpcTNP(pipes_struct *p, struct ncacn_packet *pkt,
const struct api_struct *api_rpc_cmds, int n_cmds);
/****************************************************************************
before doing the call.
****************************************************************************/
-bool api_pipe_request(pipes_struct *p)
+bool api_pipe_request(pipes_struct *p, struct ncacn_packet *pkt)
{
bool ret = False;
bool changed_user = False;
/* get the set of RPC functions for this context */
- pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
+ pipe_fns = find_pipe_fns_by_context(p->contexts,
+ pkt->u.request.context_id);
if ( pipe_fns ) {
TALLOC_CTX *frame = talloc_stackframe();
- ret = api_rpcTNP(p, pipe_fns->cmds, pipe_fns->n_cmds);
+ ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds);
TALLOC_FREE(frame);
}
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_syntax(talloc_tos(), &p->syntax)));
+ DEBUG(0, ("No rpc function table associated with context "
+ "[%d] on pipe [%s]\n",
+ pkt->u.request.context_id,
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
}
if (changed_user) {
Calls the underlying RPC function for a named pipe.
********************************************************************/
-static bool api_rpcTNP(pipes_struct *p,
+static bool api_rpcTNP(pipes_struct *p, struct ncacn_packet *pkt,
const struct api_struct *api_rpc_cmds, int n_cmds)
{
int fn_num;
/* interpret the command */
DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
- p->opnum));
+ pkt->u.request.opnum));
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "in_%s",
get_pipe_name_from_syntax(talloc_tos(), &p->syntax));
- prs_dump(name, p->opnum, &p->in_data.data);
+ prs_dump(name, pkt->u.request.opnum, &p->in_data.data);
}
for (fn_num = 0; fn_num < n_cmds; fn_num++) {
- if (api_rpc_cmds[fn_num].opnum == p->opnum && api_rpc_cmds[fn_num].fn != NULL) {
- DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
+ if (api_rpc_cmds[fn_num].opnum == pkt->u.request.opnum &&
+ api_rpc_cmds[fn_num].fn != NULL) {
+ DEBUG(3, ("api_rpcTNP: rpc command: %s\n",
+ api_rpc_cmds[fn_num].name));
break;
}
}
fstring name;
slprintf(name, sizeof(name)-1, "out_%s",
get_pipe_name_from_syntax(talloc_tos(), &p->syntax));
- prs_dump(name, p->opnum, &p->out_data.rdata);
+ prs_dump(name, pkt->u.request.opnum, &p->out_data.rdata);
}
prs_set_offset(&p->out_data.rdata, offset2);
#include "../librpc/gen_ndr/srv_spoolss.h"
#include "librpc/gen_ndr/ndr_named_pipe_auth.h"
#include "../libcli/named_pipe_auth/npa_tstream.h"
+#include "../libcli/auth/schannel.h"
+#include "../libcli/auth/spnego.h"
+#include "../libcli/auth/ntlmssp.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
appends the data into the complete stream if the LAST flag is not set.
****************************************************************************/
-static bool process_request_pdu(pipes_struct *p, prs_struct *rpc_in_p)
+static bool dcesrv_auth_request(pipes_struct *p, struct ncacn_packet *pkt)
{
- uint32 ss_padding_len = 0;
- size_t data_len = p->hdr.frag_len
- - RPC_HEADER_LEN
- - RPC_HDR_REQ_LEN
- - (p->hdr.auth_len ? RPC_HDR_AUTH_LEN : 0)
- - p->hdr.auth_len;
-
- if(!p->pipe_bound) {
- DEBUG(0,("process_request_pdu: rpc request with no bind.\n"));
- set_incoming_fault(p);
- return False;
+ NTSTATUS status;
+ size_t hdr_size = DCERPC_REQUEST_LENGTH;
+ struct dcerpc_auth auth;
+ uint32_t auth_length;
+ DATA_BLOB data;
+ DATA_BLOB full_pkt;
+
+ if (pkt->pfc_flags & DCERPC_PFC_FLAG_OBJECT_UUID) {
+ hdr_size += 16;
}
- /*
- * Check if we need to do authentication processing.
- * This is only done on requests, not binds.
- */
+ switch (p->auth.auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ break;
- /*
- * Read the RPC request header.
- */
+ case DCERPC_AUTH_LEVEL_CONNECT:
+ if (pkt->auth_length != 0) {
+ break;
+ }
+ return true;
+ case DCERPC_AUTH_LEVEL_NONE:
+ if (pkt->auth_length != 0) {
+ return false;
+ }
+ return true;
- if(!smb_io_rpc_hdr_req("req", &p->hdr_req, rpc_in_p, 0)) {
- DEBUG(0,("process_request_pdu: failed to unmarshall RPC_HDR_REQ.\n"));
- set_incoming_fault(p);
- return False;
+ default:
+ return false;
+ }
+
+ status = dcerpc_pull_auth_trailer(pkt, pkt,
+ &pkt->u.request.stub_and_verifier,
+ &auth, &auth_length, false);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
}
- /* Save the operation number */
- p->opnum = p->hdr_req.opnum;
+ pkt->u.request.stub_and_verifier.length -= auth_length;
+
+ data.data = p->in_data.pdu.data + hdr_size;
+ data.length = pkt->u.request.stub_and_verifier.length;
+ full_pkt.data = p->in_data.pdu.data;
+ full_pkt.length = p->in_data.pdu.length - auth.credentials.length;
+
+ switch (p->auth.auth_type) {
+ case PIPE_AUTH_TYPE_NONE:
+ return true;
+
+ case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
+ case PIPE_AUTH_TYPE_NTLMSSP:
- switch(p->auth.auth_type) {
- case PIPE_AUTH_TYPE_NONE:
+ if (!p->auth.a_u.auth_ntlmssp_state) {
+ DEBUG(0, ("Invalid auth level, "
+ "failed to process packet auth.\n"));
+ return false;
+ }
+
+ switch (p->auth.auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = auth_ntlmssp_unseal_packet(
+ p->auth.a_u.auth_ntlmssp_state,
+ data.data, data.length,
+ full_pkt.data, full_pkt.length,
+ &auth.credentials);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
+ }
+ memcpy(pkt->u.request.stub_and_verifier.data,
+ data.data, data.length);
break;
- case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
- case PIPE_AUTH_TYPE_NTLMSSP:
- {
- NTSTATUS status;
- if (!api_pipe_ntlmssp_auth_process(p, rpc_in_p,
- &ss_padding_len,
- &status)) {
- DEBUG(0, ("process_request_pdu: "
- "failed to do auth processing.\n"));
- DEBUG(0, ("process_request_pdu: error is %s\n",
- nt_errstr(status)));
- set_incoming_fault(p);
- return False;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = auth_ntlmssp_check_packet(
+ p->auth.a_u.auth_ntlmssp_state,
+ data.data, data.length,
+ full_pkt.data, full_pkt.length,
+ &auth.credentials);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
}
break;
+
+ default:
+ DEBUG(0, ("Invalid auth level, "
+ "failed to process packet auth.\n"));
+ return false;
}
+ break;
+
+ case PIPE_AUTH_TYPE_SCHANNEL:
+
+ switch (p->auth.auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = netsec_incoming_packet(
+ p->auth.a_u.schannel_auth,
+ pkt, true,
+ data.data, data.length,
+ &auth.credentials);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
+ }
+ memcpy(pkt->u.request.stub_and_verifier.data,
+ data.data, data.length);
+ break;
- case PIPE_AUTH_TYPE_SCHANNEL:
- if (!api_pipe_schannel_process(p, rpc_in_p,
- &ss_padding_len)) {
- DEBUG(3, ("process_request_pdu: "
- "failed to do schannel processing.\n"));
- set_incoming_fault(p);
- return False;
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = netsec_incoming_packet(
+ p->auth.a_u.schannel_auth,
+ pkt, false,
+ data.data, data.length,
+ &auth.credentials);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
}
break;
default:
- DEBUG(0, ("process_request_pdu: "
- "unknown auth type %u set.\n",
- (unsigned int)p->auth.auth_type));
- set_incoming_fault(p);
- return False;
+ DEBUG(0, ("Invalid auth level, "
+ "failed to process packet auth.\n"));
+ return false;
+ }
+ break;
+
+ default:
+ DEBUG(0, ("process_request_pdu: "
+ "unknown auth type %u set.\n",
+ (unsigned int)p->auth.auth_type));
+ set_incoming_fault(p);
+ return false;
}
- /* Now we've done the sign/seal we can remove any padding data. */
- if (data_len > ss_padding_len) {
- data_len -= ss_padding_len;
+ /* remove the indicated amount of padding */
+ if (pkt->u.request.stub_and_verifier.length < auth.auth_pad_length) {
+ return false;
}
+ pkt->u.request.stub_and_verifier.length -= auth.auth_pad_length;
+
+ return true;
+}
+
+static bool process_request_pdu(pipes_struct *p, struct ncacn_packet *pkt)
+{
+ DATA_BLOB data;
+
+ if (!p->pipe_bound) {
+ DEBUG(0,("process_request_pdu: rpc request with no bind.\n"));
+ set_incoming_fault(p);
+ return False;
+ }
+
+ /* Store the opnum */
+ p->opnum = pkt->u.request.opnum;
+
+ if (!dcesrv_auth_request(p, pkt)) {
+ DEBUG(0,("Failed to check packet auth.\n"));
+ set_incoming_fault(p);
+ return false;
+ }
+
+ data = pkt->u.request.stub_and_verifier;
/*
* Check the data length doesn't go over the 15Mb limit.
* will not fit in the initial buffer of size 0x1068 --jerry 22/01/2002
*/
- if(prs_offset(&p->in_data.data) + data_len > MAX_RPC_DATA_SIZE) {
+ if (prs_offset(&p->in_data.data) + data.length > MAX_RPC_DATA_SIZE) {
DEBUG(0, ("process_request_pdu: "
"rpc data buffer too large (%u) + (%u)\n",
(unsigned int)prs_data_size(&p->in_data.data),
- (unsigned int)data_len ));
+ (unsigned int)data.length));
set_incoming_fault(p);
return False;
}
* Append the data portion into the buffer and return.
*/
- if (!prs_append_some_prs_data(&p->in_data.data, rpc_in_p,
- prs_offset(rpc_in_p), data_len)) {
+ if (!prs_copy_data_in(&p->in_data.data,
+ (char *)data.data, data.length)) {
DEBUG(0, ("process_request_pdu: Unable to append data size %u "
"to parse buffer of size %u.\n",
- (unsigned int)data_len,
+ (unsigned int)data.length,
(unsigned int)prs_data_size(&p->in_data.data)));
set_incoming_fault(p);
return False;
}
- if(p->hdr.flags & DCERPC_PFC_FLAG_LAST) {
+ if (pkt->pfc_flags & DCERPC_PFC_FLAG_LAST) {
bool ret = False;
/*
* Ok - we finally have a complete RPC stream.
* Process the complete data stream here.
*/
- if(pipe_init_outgoing_data(p)) {
- ret = api_pipe_request(p);
+ if (pipe_init_outgoing_data(p)) {
+ ret = api_pipe_request(p, pkt);
}
return ret;
static void process_complete_pdu(pipes_struct *p)
{
- prs_struct rpc_in;
- size_t data_len = p->in_data.pdu.length - RPC_HEADER_LEN;
- char *data_p = (char *)&p->in_data.pdu.data[RPC_HEADER_LEN];
+ struct ncacn_packet *pkt;
+ NTSTATUS status;
bool reply = False;
- bool hdr_ok;
if(p->fault_state) {
DEBUG(10,("process_complete_pdu: pipe %s in fault state.\n",
get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
- set_incoming_fault(p);
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- return;
+ goto done;
}
- /* parse the header now */
- hdr_ok = unmarshall_rpc_header(p);
- if (!hdr_ok) {
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- return;
+ pkt = talloc(p->mem_ctx, struct ncacn_packet);
+ if (!pkt) {
+ DEBUG(0, ("Out of memory!\n"));
+ goto done;
}
- prs_init_empty( &rpc_in, p->mem_ctx, UNMARSHALL);
+ status = dcerpc_pull_ncacn_packet(pkt, &p->in_data.pdu, pkt);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to unmarshal rpc packet: %s!\n",
+ nt_errstr(status)));
+ goto done;
+ }
+
+ /* Store the call_id */
+ p->call_id = pkt->call_id;
/*
* Ensure we're using the corrent endianness for both the
* RPC header flags and the raw data we will be reading from.
*/
+ if (pkt->drep[0] == DCERPC_DREP_LE) {
+ p->endian = RPC_LITTLE_ENDIAN;
+ } else {
+ p->endian = RPC_BIG_ENDIAN;
+ }
+ prs_set_endian_data(&p->in_data.data, p->endian);
+
+ DEBUG(10, ("Processing packet type %d\n", (int)pkt->ptype));
+
+ switch (pkt->ptype) {
+ case DCERPC_PKT_REQUEST:
+ reply = process_request_pdu(p, pkt);
+ break;
+
+ case DCERPC_PKT_PING: /* CL request - ignore... */
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "Connectionless packet type %d received on "
+ "pipe %s.\n", (int)pkt->ptype,
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
+
+ case DCERPC_PKT_RESPONSE: /* No responses here. */
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "DCERPC_PKT_RESPONSE received from client "
+ "on pipe %s.\n",
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
+
+ case DCERPC_PKT_FAULT:
+ case DCERPC_PKT_WORKING:
+ /* CL request - reply to a ping when a call in process. */
+ case DCERPC_PKT_NOCALL:
+ /* CL - server reply to a ping call. */
+ case DCERPC_PKT_REJECT:
+ case DCERPC_PKT_ACK:
+ case DCERPC_PKT_CL_CANCEL:
+ case DCERPC_PKT_FACK:
+ case DCERPC_PKT_CANCEL_ACK:
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "Connectionless packet type %u received on "
+ "pipe %s.\n", (unsigned int)pkt->ptype,
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
+
+ case DCERPC_PKT_BIND:
+ /*
+ * We assume that a pipe bind is only in one pdu.
+ */
+ if (pipe_init_outgoing_data(p)) {
+ reply = api_pipe_bind_req(p, pkt);
+ }
+ break;
- prs_set_endian_data( &rpc_in, p->endian);
- prs_set_endian_data( &p->in_data.data, p->endian);
-
- prs_give_memory( &rpc_in, data_p, (uint32)data_len, False);
-
- DEBUG(10,("process_complete_pdu: processing packet type %u\n",
- (unsigned int)p->hdr.pkt_type ));
-
- switch (p->hdr.pkt_type) {
- case DCERPC_PKT_REQUEST:
- reply = process_request_pdu(p, &rpc_in);
- break;
-
- case DCERPC_PKT_PING: /* CL request - ignore... */
- DEBUG(0, ("process_complete_pdu: Error. "
- "Connectionless packet type %u received on "
- "pipe %s.\n", (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_RESPONSE: /* No responses here. */
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_RESPONSE received from client "
- "on pipe %s.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_FAULT:
- case DCERPC_PKT_WORKING:
- /* CL request - reply to a ping when a call in process. */
- case DCERPC_PKT_NOCALL:
- /* CL - server reply to a ping call. */
- case DCERPC_PKT_REJECT:
- case DCERPC_PKT_ACK:
- case DCERPC_PKT_CL_CANCEL:
- case DCERPC_PKT_FACK:
- case DCERPC_PKT_CANCEL_ACK:
- DEBUG(0, ("process_complete_pdu: Error. "
- "Connectionless packet type %u received on "
- "pipe %s.\n", (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_BIND:
- /*
- * We assume that a pipe bind is only in one pdu.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_req(p, &rpc_in);
- }
- break;
-
- case DCERPC_PKT_BIND_ACK:
- case DCERPC_PKT_BIND_NAK:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK "
- "packet type %u received on pipe %s.\n",
- (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
+ case DCERPC_PKT_BIND_ACK:
+ case DCERPC_PKT_BIND_NAK:
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK "
+ "packet type %u received on pipe %s.\n",
+ (unsigned int)pkt->ptype,
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
- case DCERPC_PKT_ALTER:
- /*
- * We assume that a pipe bind is only in one pdu.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_alter_context(p, &rpc_in);
- }
- break;
- case DCERPC_PKT_ALTER_RESP:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_ALTER_RESP on pipe %s: "
- "Should only be server -> client.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
+ case DCERPC_PKT_ALTER:
+ /*
+ * We assume that a pipe bind is only in one pdu.
+ */
+ if (pipe_init_outgoing_data(p)) {
+ reply = api_pipe_alter_context(p, pkt);
+ }
+ break;
- case DCERPC_PKT_AUTH3:
- /*
- * The third packet in an NTLMSSP auth exchange.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_auth3(p, &rpc_in);
- }
- break;
+ case DCERPC_PKT_ALTER_RESP:
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "DCERPC_PKT_ALTER_RESP on pipe %s: "
+ "Should only be server -> client.\n",
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
- case DCERPC_PKT_SHUTDOWN:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_SHUTDOWN on pipe %s: "
- "Should only be server -> client.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
+ case DCERPC_PKT_AUTH3:
+ /*
+ * The third packet in an NTLMSSP auth exchange.
+ */
+ if (pipe_init_outgoing_data(p)) {
+ reply = api_pipe_bind_auth3(p, pkt);
+ }
+ break;
+
+ case DCERPC_PKT_SHUTDOWN:
+ DEBUG(0, ("process_complete_pdu: Error. "
+ "DCERPC_PKT_SHUTDOWN on pipe %s: "
+ "Should only be server -> client.\n",
+ get_pipe_name_from_syntax(talloc_tos(),
+ &p->syntax)));
+ break;
+
+ case DCERPC_PKT_CO_CANCEL:
+ /* For now just free all client data and continue
+ * processing. */
+ DEBUG(3,("process_complete_pdu: DCERPC_PKT_CO_CANCEL."
+ " Abandoning rpc call.\n"));
+ /* As we never do asynchronous RPC serving, we can
+ * never cancel a call (as far as I know).
+ * If we ever did we'd have to send a cancel_ack reply.
+ * For now, just free all client data and continue
+ * processing. */
+ reply = True;
+ break;
- case DCERPC_PKT_CO_CANCEL:
- /* For now just free all client data and continue
- * processing. */
- DEBUG(3,("process_complete_pdu: DCERPC_PKT_CO_CANCEL."
- " Abandoning rpc call.\n"));
- /* As we never do asynchronous RPC serving, we can
- * never cancel a call (as far as I know).
- * If we ever did we'd have to send a cancel_ack reply.
- * For now, just free all client data and continue
- * processing. */
- reply = True;
- break;
#if 0
- /* Enable this if we're doing async rpc. */
- /* We must check the outstanding callid matches. */
- if(pipe_init_outgoing_data(p)) {
- /* Send a cancel_ack PDU reply. */
- /* We should probably check the auth-verifier here. */
- reply = setup_cancel_ack_reply(p, &rpc_in);
- }
- break;
+ /* Enable this if we're doing async rpc. */
+ /* We must check the outstanding callid matches. */
+ if (pipe_init_outgoing_data(p)) {
+ /* Send a cancel_ack PDU reply. */
+ /* We should probably check the auth-verifier here. */
+ reply = setup_cancel_ack_reply(p, pkt);
+ }
+ break;
#endif
- case DCERPC_PKT_ORPHANED:
- /* We should probably check the auth-verifier here.
- * For now just free all client data and continue
- * processing. */
- DEBUG(3, ("process_complete_pdu: DCERPC_PKT_ORPHANED."
- " Abandoning rpc call.\n"));
- reply = True;
- break;
+ case DCERPC_PKT_ORPHANED:
+ /* We should probably check the auth-verifier here.
+ * For now just free all client data and continue
+ * processing. */
+ DEBUG(3, ("process_complete_pdu: DCERPC_PKT_ORPHANED."
+ " Abandoning rpc call.\n"));
+ reply = True;
+ break;
- default:
- DEBUG(0, ("process_complete_pdu: "
- "Unknown rpc type = %u received.\n",
- (unsigned int)p->hdr.pkt_type));
- break;
+ default:
+ DEBUG(0, ("process_complete_pdu: "
+ "Unknown rpc type = %u received.\n",
+ (unsigned int)pkt->ptype));
+ break;
}
+done:
/* Reset to little endian.
* Probably don't need this but it won't hurt. */
- prs_set_endian_data( &p->in_data.data, RPC_LITTLE_ENDIAN);
+ prs_set_endian_data(&p->in_data.data, RPC_LITTLE_ENDIAN);
if (!reply) {
DEBUG(3,("process_complete_pdu: DCE/RPC fault sent on "
&p->syntax)));
set_incoming_fault(p);
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- prs_mem_free(&rpc_in);
+ TALLOC_FREE(pkt);
} else {
/*
* Reset the lengths. We're ready for a new pdu.
p->in_data.pdu.length = 0;
}
- prs_mem_free(&rpc_in);
+ TALLOC_FREE(pkt);
}
/****************************************************************************
git.samba.org / amitay / samba.git / commitdiff