*/
#include "includes.h"
+#include "system/filesys.h"
#include "srv_pipe_internal.h"
#include "../librpc/gen_ndr/ndr_schannel.h"
#include "../libcli/auth/schannel.h"
#include "../libcli/auth/spnego.h"
-#include "../libcli/auth/ntlmssp.h"
-#include "ntlmssp_wrap.h"
+#include "dcesrv_auth_generic.h"
#include "rpc_server.h"
+#include "rpc_dce.h"
+#include "smbd/smbd.h"
+#include "auth.h"
+#include "ntdomain.h"
+#include "rpc_server/srv_pipe.h"
+#include "rpc_server/rpc_contexts.h"
+#include "lib/param/param.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
TALLOC_FREE(fname);
}
-static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
-{
- TALLOC_FREE(auth->a_u.auth_ntlmssp_state);
-}
-
-static void free_pipe_schannel_auth_data(struct pipe_auth_data *auth)
-{
- TALLOC_FREE(auth->a_u.schannel_auth);
-}
-
-static void free_pipe_auth_data(struct pipe_auth_data *auth)
-{
- if (auth->auth_data_free_func) {
- (*auth->auth_data_free_func)(auth);
- auth->auth_data_free_func = NULL;
- }
-}
-
static DATA_BLOB generic_session_key(void)
{
- return data_blob("SystemLibraryDTC", 16);
+ return data_blob_const("SystemLibraryDTC", 16);
}
/*******************************************************************
Generate the next PDU to be returned from the data.
********************************************************************/
-static bool create_next_packet(struct pipes_struct *p,
- enum dcerpc_AuthType auth_type,
- enum dcerpc_AuthLevel auth_level,
- size_t auth_length,
- size_t *_pad_len)
+static NTSTATUS create_next_packet(TALLOC_CTX *mem_ctx,
+ struct pipe_auth_data *auth,
+ uint32_t call_id,
+ DATA_BLOB *rdata,
+ size_t data_sent_length,
+ DATA_BLOB *frag,
+ size_t *pdu_size)
{
union dcerpc_payload u;
uint8_t pfc_flags;
- size_t data_len_left;
- size_t data_len;
- size_t max_len;
+ size_t data_left;
+ size_t data_to_send;
+ size_t frag_len;
size_t pad_len = 0;
+ size_t auth_len = 0;
NTSTATUS status;
ZERO_STRUCT(u.response);
/* Set up rpc packet pfc flags. */
- if (p->out_data.data_sent_length == 0) {
+ if (data_sent_length == 0) {
pfc_flags = DCERPC_PFC_FLAG_FIRST;
} else {
pfc_flags = 0;
}
/* Work out how much we can fit in a single PDU. */
- data_len_left = p->out_data.rdata.length -
- p->out_data.data_sent_length;
+ data_left = rdata->length - data_sent_length;
/* Ensure there really is data left to send. */
- if (!data_len_left) {
+ if (!data_left) {
DEBUG(0, ("No data left to send !\n"));
- return false;
+ return NT_STATUS_BUFFER_TOO_SMALL;
}
- /* Max space available - not including padding. */
- if (auth_length) {
- max_len = RPC_MAX_PDU_FRAG_LEN
- - DCERPC_RESPONSE_LENGTH
- - DCERPC_AUTH_TRAILER_LENGTH
- - auth_length;
- } else {
- max_len = RPC_MAX_PDU_FRAG_LEN - DCERPC_RESPONSE_LENGTH;
- }
-
- /*
- * The amount we send is the minimum of the max_len
- * and the amount left to send.
- */
- data_len = MIN(data_len_left, max_len);
-
- if (auth_length) {
- /* Work out any padding alignment requirements. */
- pad_len = (DCERPC_RESPONSE_LENGTH + data_len) %
- SERVER_NDR_PADDING_SIZE;
- if (pad_len) {
- pad_len = SERVER_NDR_PADDING_SIZE - pad_len;
- DEBUG(10, ("Padding size is: %d\n", (int)pad_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 + pad_len > max_len) {
- data_len -= SERVER_NDR_PADDING_SIZE;
- }
- }
+ status = dcerpc_guess_sizes(auth,
+ DCERPC_RESPONSE_LENGTH,
+ data_left,
+ RPC_MAX_PDU_FRAG_LEN,
+ SERVER_NDR_PADDING_SIZE,
+ &data_to_send, &frag_len,
+ &auth_len, &pad_len);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
}
/* Set up the alloc hint. This should be the data left to send. */
- u.response.alloc_hint = data_len_left;
+ u.response.alloc_hint = data_left;
/* Work out if this PDU will be the last. */
- if (p->out_data.data_sent_length
- + data_len >= p->out_data.rdata.length) {
+ if (data_sent_length + data_to_send >= rdata->length) {
pfc_flags |= DCERPC_PFC_FLAG_LAST;
}
/* Prepare data to be NDR encoded. */
u.response.stub_and_verifier =
- data_blob_const(p->out_data.rdata.data +
- p->out_data.data_sent_length, data_len);
+ data_blob_const(rdata->data + data_sent_length, data_to_send);
/* Store the packet in the data stream. */
- status = dcerpc_push_ncacn_packet(p->mem_ctx,
- DCERPC_PKT_RESPONSE,
- pfc_flags,
- auth_length,
- p->call_id,
- &u,
- &p->out_data.frag);
+ status = dcerpc_push_ncacn_packet(mem_ctx, DCERPC_PKT_RESPONSE,
+ pfc_flags, auth_len, call_id,
+ &u, frag);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to marshall RPC Packet.\n"));
- return false;
+ return status;
}
- if (auth_length) {
+ if (auth_len) {
/* Set the proper length on the pdu, including padding.
* Only needed if an auth trailer will be appended. */
- dcerpc_set_frag_length(&p->out_data.frag,
- p->out_data.frag.length
+ dcerpc_set_frag_length(frag, frag->length
+ pad_len
+ DCERPC_AUTH_TRAILER_LENGTH
- + auth_length);
+ + auth_len);
}
- /* Setup the counts for this PDU. */
- p->out_data.data_sent_length += data_len;
- p->out_data.current_pdu_sent = 0;
- *_pad_len = pad_len;
- return true;
+ if (auth_len) {
+ status = dcerpc_add_auth_footer(auth, pad_len, frag);
+ if (!NT_STATUS_IS_OK(status)) {
+ data_blob_free(frag);
+ return status;
+ }
+ }
+
+ *pdu_size = data_to_send;
+ return NT_STATUS_OK;
}
/*******************************************************************
bool create_next_pdu(struct pipes_struct *p)
{
- enum dcerpc_AuthType auth_type =
- map_pipe_auth_type_to_rpc_auth_type(p->auth.auth_type);
- size_t auth_len = 0;
- size_t pad_len = 0;
+ size_t pdu_size = 0;
NTSTATUS status;
- bool ret;
/*
* If we're in the fault state, keep returning fault PDU's until
return true;
}
- switch (p->auth.auth_level) {
- case DCERPC_AUTH_LEVEL_NONE:
- case DCERPC_AUTH_LEVEL_CONNECT:
- /* This is incorrect for auth level connect. Fixme. JRA */
-
- /* No authentication done. */
- break;
-
- case DCERPC_AUTH_LEVEL_CALL:
- case DCERPC_AUTH_LEVEL_PACKET:
- case DCERPC_AUTH_LEVEL_INTEGRITY:
- case DCERPC_AUTH_LEVEL_PRIVACY:
-
- switch(p->auth.auth_type) {
- case PIPE_AUTH_TYPE_NTLMSSP:
- case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
- auth_len = NTLMSSP_SIG_SIZE;
- break;
-
- case PIPE_AUTH_TYPE_SCHANNEL:
- auth_len = NL_AUTH_SIGNATURE_SIZE;
- break;
-
- default:
- goto err_out;
- }
-
- break;
-
- default:
- goto err_out;
- }
-
- ret = create_next_packet(p, auth_type,
- p->auth.auth_level,
- auth_len, &pad_len);
- if (!ret) {
- return false;
- }
-
- if (auth_len) {
- status = dcerpc_add_auth_footer(&p->auth, pad_len,
- &p->out_data.frag);
- if (!NT_STATUS_IS_OK(status)) {
- data_blob_free(&p->out_data.frag);
- return false;
- }
- }
-
- return true;
-
-err_out:
- DEBUG(0, ("Invalid internal auth level %u / type %u\n",
- (unsigned int)p->auth.auth_level,
- (unsigned int)p->auth.auth_type));
- return false;
-}
-
-/*******************************************************************
- Process an NTLMSSP authentication response.
- If this function succeeds, the user has been authenticated
- and their domain, name and calling workstation stored in
- the pipe struct.
-*******************************************************************/
-
-static bool pipe_ntlmssp_verify_final(struct pipes_struct *p,
- DATA_BLOB *p_resp_blob)
-{
- DATA_BLOB session_key, reply;
- NTSTATUS status;
- 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_syntax(talloc_tos(), &p->syntax)));
-
- ZERO_STRUCT(reply);
-
- /* this has to be done as root in order to verify the password */
- become_root();
- status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
- unbecome_root();
-
- /* Don't generate a reply. */
- data_blob_free(&reply);
-
- if (!NT_STATUS_IS_OK(status)) {
- return False;
- }
-
- /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
- ensure the underlying NTLMSSP flags are also set. If not we should
- refuse the bind. */
-
- 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_syntax(talloc_tos(),
- &p->syntax)));
- return False;
- }
- }
- 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_syntax(talloc_tos(),
- &p->syntax)));
- return False;
- }
- }
-
- DEBUG(5, ("pipe_ntlmssp_verify_final: OK: user: %s domain: %s "
- "workstation: %s\n",
- auth_ntlmssp_get_username(a),
- auth_ntlmssp_get_domain(a),
- auth_ntlmssp_get_client(a)));
-
- TALLOC_FREE(p->server_info);
-
- status = auth_ntlmssp_steal_server_info(p, a, &p->server_info);
+ status = create_next_packet(p->mem_ctx, &p->auth,
+ p->call_id, &p->out_data.rdata,
+ p->out_data.data_sent_length,
+ &p->out_data.frag, &pdu_size);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("auth_ntlmssp_server_info failed to obtain the server info for authenticated user: %s\n",
- nt_errstr(status)));
+ DEBUG(0, ("Failed to create packet with error %s, "
+ "(auth level %u / type %u)\n",
+ nt_errstr(status),
+ (unsigned int)p->auth.auth_level,
+ (unsigned int)p->auth.auth_type));
return false;
}
- 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
- * does. See the RPC-SAMBA3SESSIONKEY.
- */
-
- session_key = generic_session_key();
- if (session_key.data == NULL) {
- return False;
- }
-
- ret = server_info_set_session_key(p->server_info, session_key);
-
- data_blob_free(&session_key);
-
- return True;
+ /* Setup the counts for this PDU. */
+ p->out_data.data_sent_length += pdu_size;
+ p->out_data.current_pdu_sent = 0;
+ return true;
}
-/*******************************************************************
- This is the "stage3" NTLMSSP response after a bind request and reply.
-*******************************************************************/
-
-bool api_pipe_bind_auth3(struct pipes_struct *p, struct ncacn_packet *pkt)
-{
- struct dcerpc_auth auth_info;
- NTSTATUS status;
-
- DEBUG(5, ("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
-
- if (pkt->auth_length == 0) {
- DEBUG(0, ("No auth field sent for bind request!\n"));
- goto err;
- }
-
- /* Ensure there's enough data for an authenticated request. */
- if (pkt->frag_length < RPC_HEADER_LEN
- + DCERPC_AUTH_TRAILER_LENGTH
- + pkt->auth_length) {
- DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len "
- "%u is too large.\n",
- (unsigned int)pkt->auth_length));
- goto err;
- }
-
- /*
- * Decode the authentication verifier response.
- */
-
- status = dcerpc_pull_dcerpc_auth(pkt,
- &pkt->u.auth3.auth_info,
- &auth_info, p->endian);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Failed to unmarshall dcerpc_auth.\n"));
- goto err;
- }
-
- /* We must NEVER look at auth_info->auth_pad_len here,
- * as old Samba client code gets it wrong and sends it
- * as zero. JRA.
- */
-
- if (auth_info.auth_type != DCERPC_AUTH_TYPE_NTLMSSP) {
- DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
- (unsigned int)auth_info.auth_type ));
- return False;
- }
-
- /*
- * The following call actually checks the challenge/response data.
- * for correctness against the given DOMAIN\user name.
- */
-
- if (!pipe_ntlmssp_verify_final(p, &auth_info.credentials)) {
- goto err;
- }
-
- p->pipe_bound = True;
-
- return True;
-
- err:
-
- free_pipe_auth_data(&p->auth);
-
- return False;
-}
static bool pipe_init_outgoing_data(struct pipes_struct *p);
p->out_data.data_sent_length = 0;
p->out_data.current_pdu_sent = 0;
- free_pipe_auth_data(&p->auth);
+ TALLOC_FREE(p->auth.auth_ctx);
p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE;
- p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
+ p->auth.auth_type = DCERPC_AUTH_TYPE_NONE;
p->pipe_bound = False;
return True;
static bool check_bind_req(struct pipes_struct *p,
struct ndr_syntax_id* abstract,
struct ndr_syntax_id* transfer,
- uint32 context_id)
+ uint32_t context_id)
{
struct pipe_rpc_fns *context_fns;
+ bool ok;
DEBUG(3,("check_bind_req for %s\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), abstract)));
/* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
if (rpc_srv_pipe_exists_by_id(abstract) &&
ndr_syntax_id_equal(transfer, &ndr_transfer_syntax)) {
- DEBUG(3, ("check_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- rpc_srv_get_pipe_cli_name(abstract),
- rpc_srv_get_pipe_srv_name(abstract)));
+ DEBUG(3, ("check_bind_req: %s -> %s rpc service\n",
+ rpc_srv_get_pipe_cli_name(abstract),
+ rpc_srv_get_pipe_srv_name(abstract)));
} else {
return false;
}
- context_fns = SMB_MALLOC_P(struct pipe_rpc_fns);
+ ok = init_pipe_handles(p, abstract);
+ if (!ok) {
+ DEBUG(1, ("Failed to init pipe handles!\n"));
+ return false;
+ }
+
+ context_fns = talloc(p, struct pipe_rpc_fns);
if (context_fns == NULL) {
- DEBUG(0,("check_bind_req: malloc() failed!\n"));
- return False;
+ DEBUG(0,("check_bind_req: talloc() failed!\n"));
+ return false;
}
+ context_fns->next = context_fns->prev = NULL;
context_fns->n_cmds = rpc_srv_get_pipe_num_cmds(abstract);
context_fns->cmds = rpc_srv_get_pipe_cmds(abstract);
context_fns->context_id = context_id;
+ context_fns->syntax = *abstract;
/* add to the list of open contexts */
return false;
}
-/*******************************************************************
- Handle a SPNEGO krb5 bind auth.
-*******************************************************************/
-
-static bool pipe_spnego_auth_bind_kerberos(struct pipes_struct *p,
- TALLOC_CTX *mem_ctx,
- struct dcerpc_auth *pauth_info,
- DATA_BLOB *psecblob,
- DATA_BLOB *response)
-{
- return False;
-}
-
-/*******************************************************************
- Handle the first part of a SPNEGO bind auth.
-*******************************************************************/
-
-static bool pipe_spnego_auth_bind_negotiate(struct pipes_struct *p,
- TALLOC_CTX *mem_ctx,
- struct dcerpc_auth *pauth_info,
- DATA_BLOB *response)
-{
- DATA_BLOB secblob;
- DATA_BLOB chal;
- char *OIDs[ASN1_MAX_OIDS];
- int i;
- NTSTATUS status;
- bool got_kerberos_mechanism = false;
- struct auth_ntlmssp_state *a = NULL;
-
- ZERO_STRUCT(secblob);
- ZERO_STRUCT(chal);
-
- if (pauth_info->credentials.data[0] != ASN1_APPLICATION(0)) {
- goto err;
- }
-
- /* parse out the OIDs and the first sec blob */
- if (!spnego_parse_negTokenInit(talloc_tos(),
- pauth_info->credentials, OIDs, NULL, &secblob)) {
- DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
- goto err;
- }
-
- if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
- got_kerberos_mechanism = true;
- }
-
- for (i=0;OIDs[i];i++) {
- DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
- TALLOC_FREE(OIDs[i]);
- }
- 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;
- ret = pipe_spnego_auth_bind_kerberos(p, mem_ctx, pauth_info,
- &secblob, response);
- data_blob_free(&secblob);
- return ret;
- }
-
- if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
- /* Free any previous auth type. */
- free_pipe_auth_data(&p->auth);
- }
-
- if (!got_kerberos_mechanism) {
- /* Initialize the NTLM engine. */
- status = auth_ntlmssp_start(&a);
- if (!NT_STATUS_IS_OK(status)) {
- 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
- * which means we need another packet to complete the bind.
- */
-
- status = auth_ntlmssp_update(a, secblob, &chal);
-
- if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
- goto err;
- }
-
- /* Generate the response blob we need for step 2 of the bind. */
- *response = spnego_gen_auth_response(mem_ctx, &chal, status, OID_NTLMSSP);
- } else {
- /*
- * SPNEGO negotiate down to NTLMSSP. The subsequent
- * code to process follow-up packets is not complete
- * yet. JRA.
- */
- *response = spnego_gen_auth_response(mem_ctx, NULL,
- NT_STATUS_MORE_PROCESSING_REQUIRED,
- OID_NTLMSSP);
- }
-
- /* auth_pad_len will be handled by the caller */
-
- p->auth.a_u.auth_ntlmssp_state = a;
- p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
- p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
-
- data_blob_free(&secblob);
- data_blob_free(&chal);
-
- /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
- return True;
-
- err:
-
- data_blob_free(&secblob);
- data_blob_free(&chal);
-
- p->auth.a_u.auth_ntlmssp_state = NULL;
-
- return False;
-}
-
-/*******************************************************************
- Handle the second part of a SPNEGO bind auth.
-*******************************************************************/
-
-static bool pipe_spnego_auth_bind_continue(struct pipes_struct *p,
- TALLOC_CTX *mem_ctx,
- struct dcerpc_auth *pauth_info,
- DATA_BLOB *response)
-{
- DATA_BLOB auth_blob;
- DATA_BLOB auth_reply;
- struct auth_ntlmssp_state *a = p->auth.a_u.auth_ntlmssp_state;
-
- ZERO_STRUCT(auth_blob);
- ZERO_STRUCT(auth_reply);
-
- /*
- * NB. If we've negotiated down from krb5 to NTLMSSP we'll currently
- * fail here as 'a' == NULL.
- */
- if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
- DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
- goto err;
- }
-
- 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(talloc_tos(), pauth_info->credentials, &auth_blob)) {
- DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
- goto err;
- }
-
- /*
- * The following call actually checks the challenge/response data.
- * for correctness against the given DOMAIN\user name.
- */
-
- if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
- goto err;
- }
-
- data_blob_free(&auth_blob);
-
- /* Generate the spnego "accept completed" blob - no incoming data. */
- *response = spnego_gen_auth_response(mem_ctx, &auth_reply, NT_STATUS_OK, OID_NTLMSSP);
-
- data_blob_free(&auth_reply);
-
- p->pipe_bound = True;
-
- return True;
-
- err:
-
- data_blob_free(&auth_blob);
- data_blob_free(&auth_reply);
-
- free_pipe_auth_data(&p->auth);
-
- return False;
-}
-
/*******************************************************************
Handle an schannel bind auth.
*******************************************************************/
bool ret;
NTSTATUS status;
struct netlogon_creds_CredentialState *creds;
- DATA_BLOB session_key;
enum ndr_err_code ndr_err;
+ struct schannel_state *schannel_auth;
+ struct loadparm_context *lp_ctx;
ndr_err = ndr_pull_struct_blob(
&auth_info->credentials, mem_ctx, &neg,
return false;
}
+ lp_ctx = loadparm_init_s3(p, loadparm_s3_context());
+ if (!lp_ctx) {
+ DEBUG(0,("pipe_schannel_auth_bind: loadparm_init_s3() failed!\n"));
+ return false;
+ }
+
/*
* The neg.oem_netbios_computer.a key here must match the remote computer name
* given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
*/
become_root();
- status = schannel_get_creds_state(p, lp_private_dir(),
+ status = schannel_get_creds_state(p, lp_ctx,
neg.oem_netbios_computer.a, &creds);
unbecome_root();
-
+
+ talloc_unlink(p, lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
return False;
}
- p->auth.a_u.schannel_auth = talloc(p, struct schannel_state);
- if (!p->auth.a_u.schannel_auth) {
+ schannel_auth = talloc_zero(p, struct schannel_state);
+ if (!schannel_auth) {
TALLOC_FREE(creds);
return False;
}
- 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;
+ schannel_auth->state = SCHANNEL_STATE_START;
+ schannel_auth->initiator = false;
+ schannel_auth->creds = creds;
/*
* JRA. Should we also copy the schannel session key into the pipe session key p->session_key
*
* VL. As we are mapping this to guest set the generic key
* "SystemLibraryDTC" key here. It's a bit difficult to test against
- * W2k3, as it does not allow schannel binds against SAMR and LSA
- * anymore.
- */
-
- session_key = generic_session_key();
- if (session_key.data == NULL) {
- DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
- " key\n"));
- return false;
- }
-
- ret = server_info_set_session_key(p->server_info, session_key);
+ * W2k3, as it does not allow schannel binds against SAMR and LSA
+ * anymore.
+ */
- data_blob_free(&session_key);
+ ret = session_info_set_session_key(p->session_info, generic_session_key());
if (!ret) {
- DEBUG(0, ("server_info_set_session_key failed\n"));
+ DEBUG(0, ("session_info_set_session_key failed\n"));
return false;
}
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 = &free_pipe_schannel_auth_data;
- p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
+ p->auth.auth_ctx = schannel_auth;
+ p->auth.auth_type = DCERPC_AUTH_TYPE_SCHANNEL;
p->pipe_bound = True;
Handle an NTLMSSP bind auth.
*******************************************************************/
-static bool pipe_ntlmssp_auth_bind(struct pipes_struct *p,
+static bool pipe_auth_generic_bind(struct pipes_struct *p,
TALLOC_CTX *mem_ctx,
struct dcerpc_auth *auth_info,
DATA_BLOB *response)
{
+ struct gensec_security *gensec_security = NULL;
NTSTATUS status;
- struct auth_ntlmssp_state *a = NULL;
- if (strncmp((char *)auth_info->credentials.data, "NTLMSSP", 7) != 0) {
- DEBUG(0, ("Failed to read NTLMSSP in blob\n"));
- goto err;
- }
+ status = auth_generic_server_authtype_start(p,
+ auth_info->auth_type,
+ auth_info->auth_level,
+ &auth_info->credentials,
+ response,
+ p->remote_address,
+ &gensec_security);
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_OK)) {
+ DEBUG(0, (__location__ ": auth_generic_server_authtype_start failed: %s\n",
+ nt_errstr(status)));
+ return false;
+ }
+
+ /* Make sure data is bound to the memctx, to be freed the caller */
+ talloc_steal(mem_ctx, response->data);
+
+ p->auth.auth_ctx = gensec_security;
+ p->auth.auth_type = auth_info->auth_type;
+
+ return true;
+}
+
+/*******************************************************************
+ Process an NTLMSSP authentication response.
+ If this function succeeds, the user has been authenticated
+ and their domain, name and calling workstation stored in
+ the pipe struct.
+*******************************************************************/
+
+static bool pipe_auth_generic_verify_final(TALLOC_CTX *mem_ctx,
+ struct gensec_security *gensec_security,
+ enum dcerpc_AuthLevel auth_level,
+ struct auth_session_info **session_info)
+{
+ NTSTATUS status;
+ bool ret;
+
+ DEBUG(5, (__location__ ": checking user details\n"));
+
+ /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
+ ensure the underlying NTLMSSP flags are also set. If not we should
+ refuse the bind. */
- /* We have an NTLMSSP blob. */
- status = auth_ntlmssp_start(&a);
+ status = auth_generic_server_check_flags(gensec_security,
+ (auth_level ==
+ DCERPC_AUTH_LEVEL_INTEGRITY),
+ (auth_level ==
+ DCERPC_AUTH_LEVEL_PRIVACY));
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
- nt_errstr(status) ));
- goto err;
+ DEBUG(0, (__location__ ": Client failed to negotatie proper "
+ "security for rpc connection\n"));
+ return false;
}
- 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;
+ TALLOC_FREE(*session_info);
+
+ status = auth_generic_server_get_user_info(gensec_security,
+ mem_ctx, session_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, (__location__ ": failed to obtain the server info "
+ "for authenticated user: %s\n", nt_errstr(status)));
+ return false;
}
- 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;
+ if ((*session_info)->security_token == NULL) {
+ DEBUG(1, ("Auth module failed to provide nt_user_token\n"));
+ return false;
}
- /* Make sure data is bound to the memctx, to be freed the caller */
- talloc_steal(mem_ctx, response->data);
+ /*
+ * We're an authenticated bind over smb, so the session key needs to
+ * be set to "SystemLibraryDTC". Weird, but this is what Windows
+ * does. See the RPC-SAMBA3SESSIONKEY.
+ */
- p->auth.a_u.auth_ntlmssp_state = a;
- p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
- p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
+ ret = session_info_set_session_key((*session_info), generic_session_key());
+ if (!ret) {
+ DEBUG(0, ("Failed to set session key!\n"));
+ return false;
+ }
+
+ return true;
+}
- DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
+static NTSTATUS pipe_auth_verify_final(struct pipes_struct *p)
+{
+ struct gensec_security *gensec_security;
- /* We can't set pipe_bound True yet - we need an DCERPC_PKT_AUTH3 response packet... */
- return True;
+ switch (p->auth.auth_type) {
+ case DCERPC_AUTH_TYPE_NTLMSSP:
+ case DCERPC_AUTH_TYPE_KRB5:
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ gensec_security = talloc_get_type_abort(p->auth.auth_ctx,
+ struct gensec_security);
+ if (!pipe_auth_generic_verify_final(p, gensec_security,
+ p->auth.auth_level,
+ &p->session_info)) {
+ return NT_STATUS_ACCESS_DENIED;
+ }
+ break;
+ default:
+ DEBUG(0, (__location__ ": incorrect auth type (%u).\n",
+ (unsigned int)p->auth.auth_type));
+ return NT_STATUS_ACCESS_DENIED;
+ }
- err:
+ p->pipe_bound = true;
- TALLOC_FREE(a);
- return False;
+ return NT_STATUS_OK;
}
/*******************************************************************
Respond to a pipe bind request.
*******************************************************************/
-bool api_pipe_bind_req(struct pipes_struct *p, struct ncacn_packet *pkt)
+static bool api_pipe_bind_req(struct pipes_struct *p,
+ struct ncacn_packet *pkt)
{
struct dcerpc_auth auth_info;
uint16 assoc_gid;
/* 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_syntax(talloc_tos(), &p->syntax)));
+ DEBUG(2,("Rejecting bind request on bound rpc connection\n"));
return setup_bind_nak(p, pkt);
}
*/
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),
- rpc_srv_get_pipe_srv_name(&id)));
+ DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
+ rpc_srv_get_pipe_cli_name(&id),
+ rpc_srv_get_pipe_srv_name(&id)));
} else {
status = smb_probe_module(
"rpc", get_pipe_name_from_syntax(
talloc_tos(),
- &pkt->u.bind.ctx_list[0].abstract_syntax));
+ &id));
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(),
- &pkt->u.bind.ctx_list[0].abstract_syntax)));
+ DEBUG(3,("api_pipe_bind_req: Unknown rpc service name "
+ "%s in bind request.\n",
+ get_pipe_name_from_syntax(talloc_tos(), &id)));
return setup_bind_nak(p, pkt);
}
if (rpc_srv_get_pipe_interface_by_cli_name(
get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax),
+ &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)));
+ DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
+ rpc_srv_get_pipe_cli_name(&id),
+ rpc_srv_get_pipe_srv_name(&id)));
} else {
DEBUG(0, ("module %s doesn't provide functions for "
"pipe %s!\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax),
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), &id),
+ get_pipe_name_from_syntax(talloc_tos(), &id)));
return setup_bind_nak(p, pkt);
}
}
case DCERPC_AUTH_LEVEL_PRIVACY:
p->auth.auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
break;
+ case DCERPC_AUTH_LEVEL_CONNECT:
+ p->auth.auth_level = DCERPC_AUTH_LEVEL_CONNECT;
+ break;
default:
DEBUG(0, ("Unexpected auth level (%u).\n",
(unsigned int)auth_info.auth_level ));
switch (auth_type) {
case DCERPC_AUTH_TYPE_NTLMSSP:
- if (!pipe_ntlmssp_auth_bind(p, pkt,
- &auth_info, &auth_resp)) {
+ if (!pipe_auth_generic_bind(p, pkt,
+ &auth_info, &auth_resp)) {
goto err_exit;
}
assoc_gid = 0x7a77;
break;
case DCERPC_AUTH_TYPE_SPNEGO:
- if (!pipe_spnego_auth_bind_negotiate(p, pkt,
- &auth_info, &auth_resp)) {
+ case DCERPC_AUTH_TYPE_KRB5:
+ if (!pipe_auth_generic_bind(p, pkt,
+ &auth_info, &auth_resp)) {
+ goto err_exit;
+ }
+ break;
+
+ case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
+ if (p->transport == NCALRPC && p->ncalrpc_as_system) {
+ TALLOC_FREE(p->session_info);
+
+ status = make_session_info_system(p,
+ &p->session_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto err_exit;
+ }
+
+ auth_resp = data_blob_talloc(pkt,
+ "NCALRPC_AUTH_OK",
+ 15);
+
+ p->auth.auth_type = DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM;
+ p->pipe_bound = true;
+ } else {
goto err_exit;
}
break;
if (auth_type == DCERPC_AUTH_TYPE_NONE) {
/* Unauthenticated bind request. */
/* We're finished - no more packets. */
- p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
+ p->auth.auth_type = DCERPC_AUTH_TYPE_NONE;
/* We must set the pipe auth_level here also. */
p->auth.auth_level = DCERPC_AUTH_LEVEL_NONE;
p->pipe_bound = True;
return setup_bind_nak(p, pkt);
}
+/*******************************************************************
+ This is the "stage3" response after a bind request and reply.
+*******************************************************************/
+
+bool api_pipe_bind_auth3(struct pipes_struct *p, struct ncacn_packet *pkt)
+{
+ struct dcerpc_auth auth_info;
+ DATA_BLOB response = data_blob_null;
+ struct gensec_security *gensec_security;
+ NTSTATUS status;
+
+ DEBUG(5, ("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
+
+ if (pkt->auth_length == 0) {
+ DEBUG(0, ("No auth field sent for bind request!\n"));
+ goto err;
+ }
+
+ /* Ensure there's enough data for an authenticated request. */
+ if (pkt->frag_length < RPC_HEADER_LEN
+ + DCERPC_AUTH_TRAILER_LENGTH
+ + pkt->auth_length) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len "
+ "%u is too large.\n",
+ (unsigned int)pkt->auth_length));
+ goto err;
+ }
+
+ /*
+ * Decode the authentication verifier response.
+ */
+
+ status = dcerpc_pull_dcerpc_auth(pkt,
+ &pkt->u.auth3.auth_info,
+ &auth_info, p->endian);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to unmarshall dcerpc_auth.\n"));
+ goto err;
+ }
+
+ /* We must NEVER look at auth_info->auth_pad_len here,
+ * as old Samba client code gets it wrong and sends it
+ * as zero. JRA.
+ */
+
+ if (auth_info.auth_type != p->auth.auth_type) {
+ DEBUG(0, ("Auth type mismatch! Client sent %d, "
+ "but auth was started as type %d!\n",
+ auth_info.auth_type, p->auth.auth_type));
+ goto err;
+ }
+
+ switch (auth_info.auth_type) {
+ case DCERPC_AUTH_TYPE_NTLMSSP:
+ case DCERPC_AUTH_TYPE_KRB5:
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ gensec_security = talloc_get_type_abort(p->auth.auth_ctx,
+ struct gensec_security);
+ status = auth_generic_server_step(gensec_security,
+ pkt, &auth_info.credentials,
+ &response);
+ break;
+ default:
+ DEBUG(0, (__location__ ": incorrect auth type (%u).\n",
+ (unsigned int)auth_info.auth_type));
+ return false;
+ }
+
+ if (NT_STATUS_EQUAL(status,
+ NT_STATUS_MORE_PROCESSING_REQUIRED) ||
+ response.length) {
+ DEBUG(0, (__location__ ": This was supposed to be the final "
+ "leg, but crypto machinery claims a response is "
+ "needed, aborting auth!\n"));
+ data_blob_free(&response);
+ goto err;
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Auth failed (%s)\n", nt_errstr(status)));
+ goto err;
+ }
+
+ /* Now verify auth was indeed successful and extract server info */
+ status = pipe_auth_verify_final(p);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Auth Verify failed (%s)\n", nt_errstr(status)));
+ goto err;
+ }
+
+ return true;
+
+err:
+
+ TALLOC_FREE(p->auth.auth_ctx);
+ return false;
+}
+
/****************************************************************************
Deal with an alter context call. Can be third part of 3 leg auth request for
SPNEGO calls.
****************************************************************************/
-bool api_pipe_alter_context(struct pipes_struct *p, struct ncacn_packet *pkt)
+static bool api_pipe_alter_context(struct pipes_struct *p,
+ struct ncacn_packet *pkt)
{
struct dcerpc_auth auth_info;
uint16 assoc_gid;
DATA_BLOB auth_resp = data_blob_null;
DATA_BLOB auth_blob = data_blob_null;
int pad_len = 0;
+ struct gensec_security *gensec_security;
DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
goto err_exit;
}
+ /* We can only finish if the pipe is unbound for now */
+ if (p->pipe_bound) {
+ DEBUG(0, (__location__ ": Pipe already bound, "
+ "Altering Context not yet supported!\n"));
+ goto err_exit;
+ }
+
+ if (auth_info.auth_type != p->auth.auth_type) {
+ DEBUG(0, ("Auth type mismatch! Client sent %d, "
+ "but auth was started as type %d!\n",
+ auth_info.auth_type, p->auth.auth_type));
+ goto err_exit;
+ }
- /*
- * 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, pkt,
- &auth_info, &auth_resp)) {
- goto err_exit;
- }
+ switch (auth_info.auth_type) {
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ case DCERPC_AUTH_TYPE_KRB5:
+ case DCERPC_AUTH_TYPE_NTLMSSP:
+ gensec_security = talloc_get_type_abort(p->auth.auth_ctx,
+ struct gensec_security);
+ status = auth_generic_server_step(gensec_security,
+ pkt,
+ &auth_info.credentials,
+ &auth_resp);
+ break;
- } else {
+ default:
+ DEBUG(3, (__location__ ": Usupported auth type (%d) "
+ "in alter-context call\n",
+ auth_info.auth_type));
+ goto err_exit;
+ }
+
+ if (NT_STATUS_IS_OK(status)) {
+ /* third leg of auth, verify auth info */
+ status = pipe_auth_verify_final(p);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Auth Verify failed (%s)\n",
+ nt_errstr(status)));
goto err_exit;
}
+ } else if (NT_STATUS_EQUAL(status,
+ NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ DEBUG(10, ("More auth legs required.\n"));
+ } else {
+ DEBUG(0, ("Auth step returned an error (%s)\n",
+ nt_errstr(status)));
+ goto err_exit;
}
}
return setup_bind_nak(p, pkt);
}
-/****************************************************************************
- Find the set of RPC functions associated with this context_id
-****************************************************************************/
-
-static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
-{
- PIPE_RPC_FNS *fns = NULL;
-
- if ( !list ) {
- DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
- return NULL;
- }
-
- for (fns=list; fns; fns=fns->next ) {
- if ( fns->context_id == context_id )
- return fns;
- }
- return NULL;
-}
-
-/****************************************************************************
- Memory cleanup.
-****************************************************************************/
-
-void free_pipe_rpc_context( PIPE_RPC_FNS *list )
-{
- PIPE_RPC_FNS *tmp = list;
- PIPE_RPC_FNS *tmp2;
-
- while (tmp) {
- tmp2 = tmp->next;
- SAFE_FREE(tmp);
- tmp = tmp2;
- }
-
- return;
-}
-
static bool api_rpcTNP(struct pipes_struct *p, struct ncacn_packet *pkt,
- const struct api_struct *api_rpc_cmds, int n_cmds);
+ const struct api_struct *api_rpc_cmds, int n_cmds,
+ const struct ndr_syntax_id *syntax);
/****************************************************************************
Find the correct RPC function to call for this request.
before doing the call.
****************************************************************************/
-bool api_pipe_request(struct pipes_struct *p, struct ncacn_packet *pkt)
+static bool api_pipe_request(struct pipes_struct *p,
+ struct ncacn_packet *pkt)
{
bool ret = False;
- bool changed_user = False;
- PIPE_RPC_FNS *pipe_fns;
-
- if (p->pipe_bound &&
- ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
- (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
- if(!become_authenticated_pipe_user(p)) {
- data_blob_free(&p->out_data.rdata);
- return False;
- }
- changed_user = True;
+ struct pipe_rpc_fns *pipe_fns;
+
+ if (!p->pipe_bound) {
+ DEBUG(1, ("Pipe not bound!\n"));
+ data_blob_free(&p->out_data.rdata);
+ return false;
}
- DEBUG(5, ("Requested \\PIPE\\%s\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
+ if (!become_authenticated_pipe_user(p->session_info)) {
+ DEBUG(1, ("Failed to become pipe user!\n"));
+ data_blob_free(&p->out_data.rdata);
+ return false;
+ }
/* get the set of RPC functions for this context */
if ( pipe_fns ) {
TALLOC_CTX *frame = talloc_stackframe();
- ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds);
+
+ DEBUG(5, ("Requested %s rpc service\n",
+ get_pipe_name_from_syntax(talloc_tos(), &pipe_fns->syntax)));
+
+ ret = api_rpcTNP(p, pkt, pipe_fns->cmds, pipe_fns->n_cmds,
+ &pipe_fns->syntax);
+
TALLOC_FREE(frame);
}
else {
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)));
+ "[%d]\n",
+ pkt->u.request.context_id));
}
- if (changed_user) {
- unbecome_authenticated_pipe_user();
- }
+ unbecome_authenticated_pipe_user();
return ret;
}
********************************************************************/
static bool api_rpcTNP(struct pipes_struct *p, struct ncacn_packet *pkt,
- const struct api_struct *api_rpc_cmds, int n_cmds)
+ const struct api_struct *api_rpc_cmds, int n_cmds,
+ const struct ndr_syntax_id *syntax)
{
int fn_num;
uint32_t offset1;
/* interpret the command */
DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
+ get_pipe_name_from_syntax(talloc_tos(), syntax),
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));
+ get_pipe_name_from_syntax(talloc_tos(), syntax));
dump_pdu_region(name, pkt->u.request.opnum,
&p->in_data.data, 0,
p->in_data.data.length);
/* do the actual command */
if(!api_rpc_cmds[fn_num].fn(p)) {
DEBUG(0,("api_rpcTNP: %s: %s failed.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
+ get_pipe_name_from_syntax(talloc_tos(), syntax),
api_rpc_cmds[fn_num].name));
data_blob_free(&p->out_data.rdata);
return False;
if (DEBUGLEVEL >= 50) {
fstring name;
slprintf(name, sizeof(name)-1, "out_%s",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax));
+ get_pipe_name_from_syntax(talloc_tos(), syntax));
dump_pdu_region(name, pkt->u.request.opnum,
&p->out_data.rdata, offset1,
p->out_data.rdata.length);
}
DEBUG(5,("api_rpcTNP: called %s successfully\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
+ get_pipe_name_from_syntax(talloc_tos(), syntax)));
/* Check for buffer underflow in rpc parsing */
if ((DEBUGLEVEL >= 10) &&
p->in_data.pdu_needed_len = 0;
p->in_data.pdu.length = 0;
p->fault_state = True;
- DEBUG(10, ("set_incoming_fault: Setting fault state on pipe %s\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
+
+ DEBUG(10, ("Setting fault state\n"));
}
-static NTSTATUS dcesrv_auth_request(struct pipes_struct *p,
- struct ncacn_packet *pkt)
+static NTSTATUS dcesrv_auth_request(struct pipe_auth_data *auth,
+ struct ncacn_packet *pkt,
+ DATA_BLOB *raw_pkt)
{
NTSTATUS status;
size_t hdr_size = DCERPC_REQUEST_LENGTH;
- struct dcerpc_auth auth;
- uint32_t auth_length;
- DATA_BLOB data;
- DATA_BLOB full_pkt;
+ size_t pad_len;
DEBUG(10, ("Checking request auth.\n"));
hdr_size += 16;
}
- switch (p->auth.auth_level) {
- case DCERPC_AUTH_LEVEL_PRIVACY:
- DEBUG(10, ("Requested Privacy.\n"));
- break;
-
- case DCERPC_AUTH_LEVEL_INTEGRITY:
- DEBUG(10, ("Requested Integrity.\n"));
- break;
-
- case DCERPC_AUTH_LEVEL_CONNECT:
- if (pkt->auth_length != 0) {
- break;
- }
- return NT_STATUS_OK;
-
- case DCERPC_AUTH_LEVEL_NONE:
- if (pkt->auth_length != 0) {
- DEBUG(3, ("Got non-zero auth len on non "
- "authenticated connection!\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
- return NT_STATUS_OK;
-
- default:
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- status = dcerpc_pull_auth_trailer(pkt, pkt,
- &pkt->u.request.stub_and_verifier,
- &auth, &auth_length, false);
+ /* in case of sealing this function will unseal the data in place */
+ status = dcerpc_check_auth(auth, pkt,
+ &pkt->u.request.stub_and_verifier,
+ hdr_size, raw_pkt,
+ &pad_len);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- 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 NT_STATUS_OK;
-
- case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
- case PIPE_AUTH_TYPE_NTLMSSP:
-
- DEBUG(10, ("NTLMSSP auth\n"));
-
- if (!p->auth.a_u.auth_ntlmssp_state) {
- DEBUG(0, ("Invalid auth level, "
- "failed to process packet auth.\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- 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 status;
- }
- memcpy(pkt->u.request.stub_and_verifier.data,
- data.data, data.length);
- break;
-
- 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 status;
- }
- break;
-
- default:
- DEBUG(0, ("Invalid auth level, "
- "failed to process packet auth.\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
- break;
-
- case PIPE_AUTH_TYPE_SCHANNEL:
-
- DEBUG(10, ("SCHANNEL auth\n"));
-
- 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 status;
- }
- memcpy(pkt->u.request.stub_and_verifier.data,
- data.data, data.length);
- break;
-
- 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 status;
- }
- break;
- default:
- DEBUG(0, ("Invalid auth level, "
- "failed to process packet auth.\n"));
- return NT_STATUS_INVALID_PARAMETER;
+ /* remove padding and auth trailer,
+ * this way the caller will get just the data */
+ if (pkt->auth_length) {
+ size_t trail_len = pad_len
+ + DCERPC_AUTH_TRAILER_LENGTH
+ + pkt->auth_length;
+ if (pkt->u.request.stub_and_verifier.length < trail_len) {
+ return NT_STATUS_INFO_LENGTH_MISMATCH;
}
- break;
-
- default:
- DEBUG(0, ("process_request_pdu: "
- "unknown auth type %u set.\n",
- (unsigned int)p->auth.auth_type));
- set_incoming_fault(p);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* remove the indicated amount of padding */
- if (pkt->u.request.stub_and_verifier.length < auth.auth_pad_length) {
- return NT_STATUS_INVALID_PARAMETER;
+ pkt->u.request.stub_and_verifier.length -= trail_len;
}
- pkt->u.request.stub_and_verifier.length -= auth.auth_pad_length;
return NT_STATUS_OK;
}
/* Store the opnum */
p->opnum = pkt->u.request.opnum;
- status = dcesrv_auth_request(p, pkt);
+ status = dcesrv_auth_request(&p->auth, pkt, &p->in_data.pdu);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to check packet auth.\n"));
+ DEBUG(0, ("Failed to check packet auth. (%s)\n",
+ nt_errstr(status)));
set_incoming_fault(p);
return false;
}
bool reply = False;
if(p->fault_state) {
- DEBUG(10,("process_complete_pdu: pipe %s in fault state.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
+ DEBUG(10,("RPC connection in fault state.\n"));
goto done;
}
/* Store the call_id */
p->call_id = pkt->call_id;
- DEBUG(10, ("Processing packet type %d\n", (int)pkt->ptype));
+ DEBUG(10, ("Processing packet type %u\n", (unsigned int)pkt->ptype));
switch (pkt->ptype) {
case DCERPC_PKT_REQUEST:
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)));
+ DEBUG(0, ("Error - Connectionless packet type %u received\n",
+ (unsigned int)pkt->ptype));
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)));
+ DEBUG(0, ("Error - DCERPC_PKT_RESPONSE received from client"));
break;
case DCERPC_PKT_FAULT:
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)));
+ DEBUG(0, ("Error - Connectionless packet type %u received\n",
+ (unsigned int)pkt->ptype));
break;
case DCERPC_PKT_BIND:
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)));
+ DEBUG(0, ("Error - DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK "
+ "packet type %u received.\n",
+ (unsigned int)pkt->ptype));
break;
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)));
+ DEBUG(0, ("Error - DCERPC_PKT_ALTER_RESP received: "
+ "Should only be server -> client.\n"));
break;
case DCERPC_PKT_AUTH3:
/*
- * The third packet in an NTLMSSP auth exchange.
+ * The third packet in an 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)));
+ DEBUG(0, ("Error - DCERPC_PKT_SHUTDOWN received: "
+ "Should only be server -> client.\n"));
break;
case DCERPC_PKT_CO_CANCEL:
done:
if (!reply) {
- DEBUG(3,("process_complete_pdu: DCE/RPC fault sent on "
- "pipe %s\n", get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
+ DEBUG(3,("DCE/RPC fault sent!"));
set_incoming_fault(p);
setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
TALLOC_FREE(pkt);
git.samba.org / kai / samba.git / blobdiff