* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-1998
* Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
- * Copyright (C) Paul Ashton 1997-1998.
- * Copyright (C) Jeremy Allison 1999.
+ * Copyright (C) Paul Ashton 1997-1998,
+ * Copyright (C) Jeremy Allison 1999,
+ * Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003.
*
* 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
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
+/*************************************************************
+ HACK Alert!
+ We need to transfer the session key from one rpc bind to the
+ next. This is the way the netlogon schannel works.
+**************************************************************/
+struct dcinfo last_dcinfo;
+
static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len)
{
unsigned char *hash = p->ntlmssp_hash;
uint32 data_space_available;
uint32 data_len_left;
prs_struct outgoing_pdu;
- char *data;
- char *data_from;
uint32 data_pos;
/*
if(p->ntlmssp_auth_validated)
data_space_available -= (RPC_HDR_AUTH_LEN + RPC_AUTH_NTLMSSP_CHK_LEN);
+ if(p->netsec_auth_validated)
+ data_space_available -= (RPC_HDR_AUTH_LEN + RPC_AUTH_NETSEC_CHK_LEN);
+
/*
* The amount we send is the minimum of the available
* space and the amount left to send.
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len +
RPC_HDR_AUTH_LEN + RPC_AUTH_NTLMSSP_CHK_LEN;
p->hdr.auth_len = RPC_AUTH_NTLMSSP_CHK_LEN;
+ } else if (p->netsec_auth_validated) {
+ p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len +
+ RPC_HDR_AUTH_LEN + RPC_AUTH_NETSEC_CHK_LEN;
+ p->hdr.auth_len = RPC_AUTH_NETSEC_CHK_LEN;
} else {
p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
p->hdr.auth_len = 0;
data_pos = prs_offset(&outgoing_pdu);
/* Copy the data into the PDU. */
- data_from = prs_data_p(&p->out_data.rdata) + p->out_data.data_sent_length;
- if(!prs_append_data(&outgoing_pdu, data_from, data_len)) {
+ if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
DEBUG(0,("create_next_pdu: failed to copy %u bytes of data.\n", (unsigned int)data_len));
prs_mem_free(&outgoing_pdu);
return False;
}
- /*
- * Set data to point to where we copied the data into.
- */
-
- data = prs_data_p(&outgoing_pdu) + data_pos;
-
- if (p->hdr.auth_len > 0) {
+ if (p->ntlmssp_auth_validated) {
uint32 crc32 = 0;
+ char *data;
DEBUG(5,("create_next_pdu: sign: %s seal: %s data %d auth %d\n",
BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, p->hdr.auth_len));
+ /*
+ * Set data to point to where we copied the data into.
+ */
+
+ data = prs_data_p(&outgoing_pdu) + data_pos;
+
if (auth_seal) {
crc32 = crc32_calc_buffer(data, data_len);
NTLMSSPcalc_p(p, (uchar*)data, data_len);
if (auth_seal || auth_verify) {
RPC_HDR_AUTH auth_info;
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL,
+ init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, RPC_PIPE_AUTH_SEAL_LEVEL,
(auth_verify ? RPC_HDR_AUTH_LEN : 0), (auth_verify ? 1 : 0));
if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_AUTH.\n"));
}
}
+ if (p->netsec_auth_validated) {
+ int auth_type, auth_level;
+ char *data;
+ RPC_HDR_AUTH auth_info;
+
+ RPC_AUTH_NETSEC_CHK verf;
+ prs_struct rverf;
+ prs_struct rauth;
+
+ data = prs_data_p(&outgoing_pdu) + data_pos;
+ /* Check it's the type of reply we were expecting to decode */
+
+ get_auth_type_level(p->netsec_auth.auth_flags, &auth_type, &auth_level);
+ init_rpc_hdr_auth(&auth_info, auth_type, auth_level,
+ RPC_HDR_AUTH_LEN, 1);
+
+ if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_AUTH.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
+
+ prs_init(&rverf, 0, p->mem_ctx, MARSHALL);
+ prs_init(&rauth, 0, p->mem_ctx, MARSHALL);
+
+ netsec_encode(&p->netsec_auth,
+ p->netsec_auth.auth_flags,
+ SENDER_IS_ACCEPTOR,
+ &verf, data, data_len);
+
+ smb_io_rpc_auth_netsec_chk("", &verf, &outgoing_pdu, 0);
+
+ p->netsec_auth.seq_num++;
+ }
+
/*
* Setup the counts for this PDU.
*/
auth_usersupplied_info *user_info = NULL;
auth_serversupplied_info *server_info = NULL;
- uid_t uid;
- uid_t gid;
-
DEBUG(5,("api_pipe_ntlmssp_verify: checking user details\n"));
memset(p->user_name, '\0', sizeof(p->user_name));
* Set up the sign/seal data.
*/
- {
+ if (server_info->lm_session_key.length != 16) {
+ DEBUG(1,("api_pipe_ntlmssp_verify: User [%s]\\[%s] from machine %s \
+succeeded authentication on named pipe %s, but session key was of incorrect length [%u].\n",
+ domain, user_name, wks, p->name, server_info->lm_session_key.length));
+ free_server_info(&server_info);
+ return False;
+ } else {
uchar p24[24];
- NTLMSSPOWFencrypt(server_info->first_8_lm_hash, lm_owf, p24);
+ NTLMSSPOWFencrypt(server_info->lm_session_key.data, lm_owf, p24);
{
unsigned char j = 0;
int ind;
p->ntlmssp_hash[256] = 0;
p->ntlmssp_hash[257] = 0;
}
+
+ dump_data_pw("NTLMSSP hash (v1)\n", p->ntlmssp_hash,
+ sizeof(p->ntlmssp_hash));
+
/* NTLMSSPhash(p->ntlmssp_hash, p24); */
p->ntlmssp_seq_num = 0;
}
fstrcpy(p->user_name, user_name);
- fstrcpy(p->pipe_user_name, pdb_get_username(server_info->sam_account));
+ fstrcpy(p->pipe_user_name, server_info->unix_name);
fstrcpy(p->domain, domain);
fstrcpy(p->wks, wks);
* Store the UNIX credential data (uid/gid pair) in the pipe structure.
*/
- if (!IS_SAM_UNIX_USER(server_info->sam_account)) {
- DEBUG(0,("Attempted authenticated pipe with invalid user. No uid/gid in SAM_ACCOUNT\n"));
- free_server_info(&server_info);
- return False;
- }
-
- memcpy(p->session_key, server_info->session_key, sizeof(p->session_key));
+ p->session_key = data_blob(server_info->lm_session_key.data, server_info->lm_session_key.length);
- uid = pdb_get_uid(server_info->sam_account);
- gid = pdb_get_gid(server_info->sam_account);
-
- p->pipe_user.uid = uid;
- p->pipe_user.gid = gid;
-
- /* Set up pipe user group membership. */
- initialise_groups(p->pipe_user_name, p->pipe_user.uid, p->pipe_user.gid);
- get_current_groups( &p->pipe_user.ngroups, &p->pipe_user.groups);
+ p->pipe_user.uid = server_info->uid;
+ p->pipe_user.gid = server_info->gid;
+
+ p->pipe_user.ngroups = server_info->n_groups;
+ if (p->pipe_user.ngroups) {
+ if (!(p->pipe_user.groups = memdup(server_info->groups, sizeof(gid_t) * p->pipe_user.ngroups))) {
+ DEBUG(0,("failed to memdup group list to p->pipe_user.groups\n"));
+ free_server_info(&server_info);
+ return False;
+ }
+ }
if (server_info->ptok)
- add_supplementary_nt_login_groups(&p->pipe_user.ngroups, &p->pipe_user.groups, &server_info->ptok);
-
- /* Create an NT_USER_TOKEN struct for this user. */
- p->pipe_user.nt_user_token = create_nt_token(p->pipe_user.uid,p->pipe_user.gid,
- p->pipe_user.ngroups, p->pipe_user.groups,
- server_info->guest, server_info->ptok);
+ p->pipe_user.nt_user_token = dup_nt_token(server_info->ptok);
+ else {
+ DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
+ p->pipe_user.nt_user_token = NULL;
+ free_server_info(&server_info);
+ return False;
+ }
p->ntlmssp_auth_validated = True;
- pdb_free_sam(&server_info->sam_account);
+ free_server_info(&server_info);
return True;
}
The switch table for the pipe names and the functions to handle them.
*******************************************************************/
-struct api_cmd
+struct rpc_table
{
- char * pipe_clnt_name;
- char * pipe_srv_name;
- BOOL (*fn) (pipes_struct *);
+ struct
+ {
+ const char *clnt;
+ const char *srv;
+ } pipe;
+ struct api_struct *cmds;
+ int n_cmds;
};
-static struct api_cmd api_fd_commands[] =
-{
- { "lsarpc", "lsass", api_ntlsa_rpc },
- { "samr", "lsass", api_samr_rpc },
- { "srvsvc", "ntsvcs", api_srvsvc_rpc },
- { "wkssvc", "ntsvcs", api_wkssvc_rpc },
- { "NETLOGON", "lsass", api_netlog_rpc },
- { "winreg", "winreg", api_reg_rpc },
- { "spoolss", "spoolss", api_spoolss_rpc },
- { "netdfs", "netdfs" , api_netdfs_rpc },
- { NULL, NULL, NULL }
-};
+static struct rpc_table *rpc_lookup;
+static int rpc_lookup_size;
/*******************************************************************
This is the client reply to our challenge for an authenticated
return False;
}
- if (autha_info.auth_type != NTLMSSP_AUTH_TYPE || autha_info.auth_level != NTLMSSP_AUTH_LEVEL) {
+ if (autha_info.auth_type != NTLMSSP_AUTH_TYPE || autha_info.auth_level != RPC_PIPE_AUTH_SEAL_LEVEL) {
DEBUG(0,("api_pipe_bind_auth_resp: incorrect auth type (%d) or level (%d).\n",
(int)autha_info.auth_type, (int)autha_info.auth_level ));
return False;
Used to reject unknown binds from Win2k.
*******************************************************************/
-BOOL check_bind_req(char* pipe_name, RPC_IFACE* abstract,
- RPC_IFACE* transfer)
+BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
+ RPC_IFACE* transfer, uint32 context_id)
{
extern struct pipe_id_info pipe_names[];
+ char *pipe_name = p->name;
int i=0;
fstring pname;
+
fstrcpy(pname,"\\PIPE\\");
fstrcat(pname,pipe_name);
- for(i=0;pipe_names[i].client_pipe; i++) {
- if(strequal(pipe_names[i].client_pipe, pname))
+ DEBUG(3,("check_bind_req for %s\n", pname));
+
+ /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
+
+ for ( i=0; pipe_names[i].client_pipe; i++ )
+ {
+ if ( strequal(pipe_names[i].client_pipe, pname)
+ && (abstract->version == pipe_names[i].abstr_syntax.version)
+ && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(RPC_UUID)) == 0)
+ && (transfer->version == pipe_names[i].trans_syntax.version)
+ && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(RPC_UUID)) == 0) )
+ {
+ struct api_struct *fns = NULL;
+ int n_fns = 0;
+ PIPE_RPC_FNS *context_fns;
+
+ if ( !(context_fns = malloc(sizeof(PIPE_RPC_FNS))) ) {
+ DEBUG(0,("check_bind_req: malloc() failed!\n"));
+ return False;
+ }
+
+ /* save the RPC function table associated with this bind */
+
+ get_pipe_fns(i, &fns, &n_fns);
+
+ context_fns->cmds = fns;
+ context_fns->n_cmds = n_fns;
+ context_fns->context_id = context_id;
+
+ /* add to the list of open contexts */
+
+ DLIST_ADD( p->contexts, context_fns );
+
break;
+ }
}
if(pipe_names[i].client_pipe == NULL)
return False;
- /* check the abstract interface */
- if((abstract->version != pipe_names[i].abstr_syntax.version) ||
- (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid,
- sizeof(RPC_UUID)) != 0))
- return False;
+ return True;
+}
- /* check the transfer interface */
- if((transfer->version != pipe_names[i].trans_syntax.version) ||
- (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid,
- sizeof(RPC_UUID)) != 0))
- return False;
+/*******************************************************************
+ Register commands to an RPC pipe
+*******************************************************************/
+NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
+{
+ struct rpc_table *rpc_entry;
- return True;
+ if (!clnt || !srv || !cmds) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (version != SMB_RPC_INTERFACE_VERSION) {
+ DEBUG(0,("Can't register rpc commands!\n"
+ "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
+ ", while this version of samba uses version %d!\n",
+ version,SMB_RPC_INTERFACE_VERSION));
+ return NT_STATUS_OBJECT_TYPE_MISMATCH;
+ }
+
+ /* TODO:
+ *
+ * we still need to make sure that don't register the same commands twice!!!
+ *
+ * --metze
+ */
+
+ /* We use a temporary variable because this call can fail and
+ rpc_lookup will still be valid afterwards. It could then succeed if
+ called again later */
+ rpc_entry = realloc(rpc_lookup,
+ ++rpc_lookup_size*sizeof(struct rpc_table));
+ if (NULL == rpc_entry) {
+ rpc_lookup_size--;
+ DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ } else {
+ rpc_lookup = rpc_entry;
+ }
+
+ rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
+ ZERO_STRUCTP(rpc_entry);
+ rpc_entry->pipe.clnt = strdup(clnt);
+ rpc_entry->pipe.srv = strdup(srv);
+ rpc_entry->cmds = realloc(rpc_entry->cmds,
+ (rpc_entry->n_cmds + size) *
+ sizeof(struct api_struct));
+ memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds,
+ size * sizeof(struct api_struct));
+ rpc_entry->n_cmds += size;
+
+ return NT_STATUS_OK;
}
/*******************************************************************
enum RPC_PKT_TYPE reply_pkt_type;
p->ntlmssp_auth_requested = False;
+ p->netsec_auth_validated = False;
DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
* that this is a pipe name we support.
*/
- for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) {
- if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) &&
- api_fd_commands[i].fn != NULL) {
- DEBUG(3,("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- api_fd_commands[i].pipe_clnt_name,
- api_fd_commands[i].pipe_srv_name));
- fstrcpy(p->pipe_srv_name, api_fd_commands[i].pipe_srv_name);
- break;
- }
+
+ for (i = 0; i < rpc_lookup_size; i++) {
+ if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
+ DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
+ rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
+ fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
+ break;
+ }
}
- if (api_fd_commands[i].fn == NULL) {
- DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
- p->name ));
- if(!setup_bind_nak(p))
+ if (i == rpc_lookup_size) {
+ if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
+ DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
+ p->name ));
+ if(!setup_bind_nak(p))
+ return False;
+ return True;
+ }
+
+ for (i = 0; i < rpc_lookup_size; i++) {
+ if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
+ DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
+ rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
+ fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
+ break;
+ }
+ }
+
+ if (i == rpc_lookup_size) {
+ DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
return False;
- return True;
+ }
}
/* decode the bind request */
return False;
}
- /*
- * We only support NTLMSSP_AUTH_TYPE requests.
- */
+ if(auth_info.auth_type == NTLMSSP_AUTH_TYPE) {
- if(auth_info.auth_type != NTLMSSP_AUTH_TYPE) {
- DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n",
- auth_info.auth_type ));
- return False;
- }
+ if(!smb_io_rpc_auth_verifier("", &auth_verifier, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_req: unable to "
+ "unmarshall RPC_HDR_AUTH struct.\n"));
+ return False;
+ }
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
- return False;
- }
+ if(!strequal(auth_verifier.signature, "NTLMSSP")) {
+ DEBUG(0,("api_pipe_bind_req: "
+ "auth_verifier.signature != NTLMSSP\n"));
+ return False;
+ }
- if(!strequal(auth_verifier.signature, "NTLMSSP")) {
- DEBUG(0,("api_pipe_bind_req: auth_verifier.signature != NTLMSSP\n"));
- return False;
- }
+ if(auth_verifier.msg_type != NTLMSSP_NEGOTIATE) {
+ DEBUG(0,("api_pipe_bind_req: "
+ "auth_verifier.msg_type (%d) != NTLMSSP_NEGOTIATE\n",
+ auth_verifier.msg_type));
+ return False;
+ }
- if(auth_verifier.msg_type != NTLMSSP_NEGOTIATE) {
- DEBUG(0,("api_pipe_bind_req: auth_verifier.msg_type (%d) != NTLMSSP_NEGOTIATE\n",
- auth_verifier.msg_type));
- return False;
- }
+ if(!smb_io_rpc_auth_ntlmssp_neg("", &ntlmssp_neg, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_req: "
+ "Failed to unmarshall RPC_AUTH_NTLMSSP_NEG.\n"));
+ return False;
+ }
+
+ p->ntlmssp_chal_flags = SMBD_NTLMSSP_NEG_FLAGS;
+ p->ntlmssp_auth_requested = True;
+
+ } else if (auth_info.auth_type == NETSEC_AUTH_TYPE) {
+
+ RPC_AUTH_NETSEC_NEG neg;
+ struct netsec_auth_struct *a = &(p->netsec_auth);
+
+ if (!smb_io_rpc_auth_netsec_neg("", &neg, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_req: "
+ "Could not unmarshal SCHANNEL auth neg\n"));
+ return False;
+ }
+
+ p->netsec_auth_validated = True;
+
+ memset(a->sess_key, 0, sizeof(a->sess_key));
+ memcpy(a->sess_key, last_dcinfo.sess_key, sizeof(last_dcinfo.sess_key));
+
+ a->seq_num = 0;
- if(!smb_io_rpc_auth_ntlmssp_neg("", &ntlmssp_neg, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: Failed to unmarshall RPC_AUTH_NTLMSSP_NEG.\n"));
+ DEBUG(10,("schannel auth: domain [%s] myname [%s]\n",
+ neg.domain, neg.myname));
+
+ } else {
+ DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n",
+ auth_info.auth_type ));
return False;
}
-
- p->ntlmssp_chal_flags = SMBD_NTLMSSP_NEG_FLAGS;
- p->ntlmssp_auth_requested = True;
}
switch(p->hdr.pkt_type) {
unknown to NT4)
Needed when adding entries to a DACL from NT5 - SK */
- if(check_bind_req(p->name, &hdr_rb.abstract, &hdr_rb.transfer)) {
+ if(check_bind_req(p, &hdr_rb.abstract, &hdr_rb.transfer, hdr_rb.context_id ))
+ {
init_rpc_hdr_ba(&hdr_ba,
MAX_PDU_FRAG_LEN,
MAX_PDU_FRAG_LEN,
/*** Authentication info ***/
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL, RPC_HDR_AUTH_LEN, 1);
+ init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, RPC_PIPE_AUTH_SEAL_LEVEL, RPC_HDR_AUTH_LEN, 1);
if(!smb_io_rpc_hdr_auth("", &auth_info, &out_auth, 0)) {
DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_AUTH failed.\n"));
goto err_exit;
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
+ if (p->netsec_auth_validated) {
+ RPC_AUTH_VERIFIER auth_verifier;
+ uint32 flags;
+
+ /* The client opens a second RPC NETLOGON pipe without
+ doing a auth2. The credentials for the schannel are
+ re-used from the auth2 the client did before. */
+ p->dc = last_dcinfo;
+
+ init_rpc_hdr_auth(&auth_info, NETSEC_AUTH_TYPE, RPC_PIPE_AUTH_SEAL_LEVEL, RPC_HDR_AUTH_LEN, 1);
+ if(!smb_io_rpc_hdr_auth("", &auth_info, &out_auth, 0)) {
+ DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_AUTH failed.\n"));
+ goto err_exit;
+ }
+
+ /*** NETSEC verifier ***/
+
+ init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
+ if(!smb_io_rpc_netsec_verifier("", &auth_verifier, &out_auth, 0)) {
+ DEBUG(0,("api_pipe_bind_req: marshalling of RPC_AUTH_VERIFIER failed.\n"));
+ goto err_exit;
+ }
+
+ prs_align(&out_auth);
+
+ flags = 5;
+ if(!prs_uint32("flags ", &out_auth, 0, &flags))
+ goto err_exit;
+
+ auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
+ }
+
/*
* Create the header, now we know the length.
*/
goto err_exit;
}
- if(p->ntlmssp_auth_requested && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
+ if((p->ntlmssp_auth_requested|p->netsec_auth_validated) &&
+ !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
goto err_exit;
}
* has already been consumed.
*/
char *data = prs_data_p(rpc_in) + RPC_HDR_REQ_LEN;
+ dump_data_pw("NTLMSSP hash (v1)\n", p->ntlmssp_hash,
+ sizeof(p->ntlmssp_hash));
+
+ dump_data_pw("Incoming RPC PDU (NTLMSSP sealed)\n",
+ (const unsigned char *)data, data_len);
NTLMSSPcalc_p(p, (uchar*)data, data_len);
+ dump_data_pw("Incoming RPC PDU (NTLMSSP unsealed)\n",
+ (const unsigned char *)data, data_len);
crc32 = crc32_calc_buffer(data, data_len);
}
return True;
}
+/****************************************************************************
+ Deal with schannel processing on an RPC request.
+****************************************************************************/
+BOOL api_pipe_netsec_process(pipes_struct *p, prs_struct *rpc_in)
+{
+ /*
+ * We always negotiate the following two bits....
+ */
+ int data_len;
+ int auth_len;
+ uint32 old_offset;
+ RPC_HDR_AUTH auth_info;
+ RPC_AUTH_NETSEC_CHK netsec_chk;
+
+
+ auth_len = p->hdr.auth_len;
+
+ if (auth_len != RPC_AUTH_NETSEC_CHK_LEN) {
+ DEBUG(0,("Incorrect auth_len %d.\n", 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.
+ */
+
+ data_len = 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));
+
+ old_offset = prs_offset(rpc_in);
+
+ if(!prs_set_offset(rpc_in, old_offset + data_len)) {
+ DEBUG(0,("cannot move offset to %u.\n",
+ (unsigned int)old_offset + data_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"));
+ return False;
+ }
+
+ if (auth_info.auth_type != NETSEC_AUTH_TYPE) {
+ DEBUG(0,("Invalid auth info %d on schannel\n",
+ auth_info.auth_type));
+ return False;
+ }
+
+ if (auth_info.auth_level == RPC_PIPE_AUTH_SEAL_LEVEL) {
+ p->netsec_auth.auth_flags = AUTH_PIPE_NETSEC|AUTH_PIPE_SIGN|AUTH_PIPE_SEAL;
+ } else if (auth_info.auth_level == RPC_PIPE_AUTH_SIGN_LEVEL) {
+ p->netsec_auth.auth_flags = AUTH_PIPE_NETSEC|AUTH_PIPE_SIGN;
+ } else {
+ DEBUG(0,("Invalid auth level %d on schannel\n",
+ auth_info.auth_level));
+ return False;
+ }
+
+ if(!smb_io_rpc_auth_netsec_chk("", &netsec_chk, rpc_in, 0)) {
+ DEBUG(0,("failed to unmarshal RPC_AUTH_NETSEC_CHK.\n"));
+ return False;
+ }
+
+ if (!netsec_decode(&p->netsec_auth,
+ p->netsec_auth.auth_flags,
+ SENDER_IS_INITIATOR,
+ &netsec_chk,
+ prs_data_p(rpc_in)+old_offset, data_len)) {
+ DEBUG(0,("failed to decode PDU\n"));
+ return False;
+ }
+
+ /*
+ * Return the current pointer to the data offset.
+ */
+
+ if(!prs_set_offset(rpc_in, old_offset)) {
+ DEBUG(0,("failed to set offset back to %u\n",
+ (unsigned int)old_offset ));
+ return False;
+ }
+
+ /* The sequence number gets incremented on both send and receive. */
+ p->netsec_auth.seq_num++;
+
+ return True;
+}
+
/****************************************************************************
Return a user struct for a pipe user.
****************************************************************************/
return user;
}
+/****************************************************************************
+ 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;
+ PIPE_RPC_FNS *tmp = NULL;
+
+ if ( !list ) {
+ DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
+ return NULL;
+ }
+
+ for (tmp=list; tmp; tmp=tmp->next ) {
+ if ( tmp->context_id == context_id )
+ break;
+ }
+
+ fns = tmp;
+
+ return fns;
+}
+
+/****************************************************************************
+ 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;
+}
+
/****************************************************************************
Find the correct RPC function to call for this request.
If the pipe is authenticated then become the correct UNIX user
BOOL api_pipe_request(pipes_struct *p)
{
- int i = 0;
BOOL ret = False;
-
+ PIPE_RPC_FNS *pipe_fns;
+
if (p->ntlmssp_auth_validated) {
if(!become_authenticated_pipe_user(p)) {
}
}
- for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) {
- if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) &&
- api_fd_commands[i].fn != NULL) {
- DEBUG(3,("Doing \\PIPE\\%s\n", api_fd_commands[i].pipe_clnt_name));
- set_current_rpc_talloc(p->mem_ctx);
- ret = api_fd_commands[i].fn(p);
- set_current_rpc_talloc(NULL);
- }
+ DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
+
+ /* get the set of RPC functions for this context */
+
+ pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
+
+ if ( pipe_fns ) {
+ set_current_rpc_talloc(p->mem_ctx);
+ ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
+ set_current_rpc_talloc(NULL);
+ }
+ else {
+ DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
+ p->hdr_req.context_id, p->name));
}
if(p->ntlmssp_auth_validated)
Calls the underlying RPC function for a named pipe.
********************************************************************/
-BOOL api_rpcTNP(pipes_struct *p, char *rpc_name,
- const struct api_struct *api_rpc_cmds)
+BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
+ const struct api_struct *api_rpc_cmds, int n_cmds)
{
int fn_num;
fstring name;
slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
- for (fn_num = 0; api_rpc_cmds[fn_num].name; fn_num++) {
+ for (fn_num = 0; fn_num < n_cmds; fn_num++) {
if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
break;
}
}
- if (api_rpc_cmds[fn_num].name == NULL) {
+ if (fn_num == n_cmds) {
/*
* For an unknown RPC just return a fault PDU but
* return True to allow RPC's on the pipe to continue
offset1 = prs_offset(&p->out_data.rdata);
+ DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
+ fn_num, api_rpc_cmds[fn_num].fn));
/* do the actual command */
if(!api_rpc_cmds[fn_num].fn(p)) {
DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
/* Check for buffer underflow in rpc parsing */
if ((DEBUGLEVEL >= 10) &&
- (p->in_data.data.data_offset != p->in_data.data.buffer_size)) {
- int data_len = p->in_data.data.buffer_size -
- p->in_data.data.data_offset;
+ (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
+ size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
char *data;
data = malloc(data_len);
DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
if (data) {
- prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data,
- data_len);
+ prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
SAFE_FREE(data);
}
return True;
}
+
+/*******************************************************************
+*******************************************************************/
+
+void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
+{
+ struct api_struct *cmds = NULL;
+ int n_cmds = 0;
+
+ switch ( idx ) {
+ case PI_LSARPC:
+ lsa_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_LSARPC_DS:
+ lsa_ds_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_SAMR:
+ samr_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_NETLOGON:
+ netlog_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_SRVSVC:
+ srvsvc_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_WKSSVC:
+ wkssvc_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_WINREG:
+ reg_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_SPOOLSS:
+ spoolss_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_NETDFS:
+ netdfs_get_pipe_fns( &cmds, &n_cmds );
+ break;
+#ifdef DEVELOPER
+ case PI_ECHO:
+ echo_get_pipe_fns( &cmds, &n_cmds );
+ break;
+#endif
+ default:
+ DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));
+ }
+
+ *fns = cmds;
+ *n_fns = n_cmds;
+
+ return;
+}
+
+
git.samba.org / abartlet / samba.git / .git / blobdiff