--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ client connect/disconnect routines
+ Copyright (C) Andrew Tridgell 1994-1998
+ Copyright (C) Andrew Bartlett 2001-2003
+
+ 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+extern pstring user_socket_options;
+
+static const struct {
+ int prot;
+ const char *name;
+} prots[] = {
+ {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
+ {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
+ {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
+ {PROTOCOL_LANMAN1,"LANMAN1.0"},
+ {PROTOCOL_LANMAN2,"LM1.2X002"},
+ {PROTOCOL_LANMAN2,"DOS LANMAN2.1"},
+ {PROTOCOL_LANMAN2,"Samba"},
+ {PROTOCOL_NT1,"NT LANMAN 1.0"},
+ {PROTOCOL_NT1,"NT LM 0.12"},
+ {-1,NULL}
+};
+
+/**
+ * Set the user session key for a connection
+ * @param cli The cli structure to add it too
+ * @param session_key The session key used. (A copy of this is taken for the cli struct)
+ *
+ */
+
+static void cli_set_session_key (struct cli_state *cli, const DATA_BLOB session_key)
+{
+ cli->user_session_key = data_blob(session_key.data, session_key.length);
+}
+
+/****************************************************************************
+ Do an old lanman2 style session setup.
+****************************************************************************/
+
+static BOOL cli_session_setup_lanman2(struct cli_state *cli, const char *user,
+ const char *pass, size_t passlen, const char *workgroup)
+{
+ DATA_BLOB session_key = data_blob(NULL, 0);
+ DATA_BLOB lm_response = data_blob(NULL, 0);
+ fstring pword;
+ char *p;
+
+ if (passlen > sizeof(pword)-1)
+ return False;
+
+ /* LANMAN servers predate NT status codes and Unicode and ignore those
+ smb flags so we must disable the corresponding default capabilities
+ that would otherwise cause the Unicode and NT Status flags to be
+ set (and even returned by the server) */
+
+ cli->capabilities &= ~(CAP_UNICODE | CAP_STATUS32);
+
+ /* if in share level security then don't send a password now */
+ if (!(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL))
+ passlen = 0;
+
+ if (passlen > 0 && (cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen != 24) {
+ /* Encrypted mode needed, and non encrypted password supplied. */
+ lm_response = data_blob(NULL, 24);
+ if (!SMBencrypt(pass, cli->secblob.data,(uchar *)lm_response.data)) {
+ DEBUG(1, ("Password is > 14 chars in length, and is therefore incompatible with Lanman authentication\n"));
+ return False;
+ }
+ } else if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && passlen == 24) {
+ /* Encrypted mode needed, and encrypted password supplied. */
+ lm_response = data_blob(pass, passlen);
+ } else if (passlen > 0) {
+ /* Plaintext mode needed, assume plaintext supplied. */
+ passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
+ lm_response = data_blob(pass, passlen);
+ }
+
+ /* send a session setup command */
+ memset(cli->outbuf,'\0',smb_size);
+ set_message(cli->outbuf,10, 0, True);
+ SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
+ cli_setup_packet(cli);
+
+ SCVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,1);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
+
+ p = smb_buf(cli->outbuf);
+ memcpy(p,lm_response.data,lm_response.length);
+ p += lm_response.length;
+ p += clistr_push(cli, p, user, -1, STR_TERMINATE|STR_UPPER);
+ p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
+ p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
+ p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (cli_is_error(cli))
+ return False;
+
+ /* use the returned vuid from now on */
+ cli->vuid = SVAL(cli->inbuf,smb_uid);
+ fstrcpy(cli->user_name, user);
+
+ if (session_key.data) {
+ /* Have plaintext orginal */
+ cli_set_session_key(cli, session_key);
+ }
+
+ return True;
+}
+
+/****************************************************************************
+ Work out suitable capabilities to offer the server.
+****************************************************************************/
+
+static uint32 cli_session_setup_capabilities(struct cli_state *cli)
+{
+ uint32 capabilities = CAP_NT_SMBS;
+
+ if (!cli->force_dos_errors)
+ capabilities |= CAP_STATUS32;
+
+ if (cli->use_level_II_oplocks)
+ capabilities |= CAP_LEVEL_II_OPLOCKS;
+
+ capabilities |= (cli->capabilities & (CAP_UNICODE|CAP_LARGE_FILES|CAP_LARGE_READX|CAP_LARGE_WRITEX|CAP_DFS));
+ return capabilities;
+}
+
+/****************************************************************************
+ Do a NT1 guest session setup.
+****************************************************************************/
+
+static BOOL cli_session_setup_guest(struct cli_state *cli)
+{
+ char *p;
+ uint32 capabilities = cli_session_setup_capabilities(cli);
+
+ memset(cli->outbuf, '\0', smb_size);
+ set_message(cli->outbuf,13,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
+ cli_setup_packet(cli);
+
+ SCVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,cli->pid);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv7,0);
+ SSVAL(cli->outbuf,smb_vwv8,0);
+ SIVAL(cli->outbuf,smb_vwv11,capabilities);
+ p = smb_buf(cli->outbuf);
+ p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* username */
+ p += clistr_push(cli, p, "", -1, STR_TERMINATE); /* workgroup */
+ p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
+ p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (cli_is_error(cli))
+ return False;
+
+ cli->vuid = SVAL(cli->inbuf,smb_uid);
+
+ p = smb_buf(cli->inbuf);
+ p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
+
+ fstrcpy(cli->user_name, "");
+
+ return True;
+}
+
+/****************************************************************************
+ Do a NT1 plaintext session setup.
+****************************************************************************/
+
+static BOOL cli_session_setup_plaintext(struct cli_state *cli, const char *user,
+ const char *pass, const char *workgroup)
+{
+ uint32 capabilities = cli_session_setup_capabilities(cli);
+ char *p;
+ fstring lanman;
+
+ fstr_sprintf( lanman, "Samba %s", SAMBA_VERSION_STRING);
+
+ set_message(cli->outbuf,13,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
+ cli_setup_packet(cli);
+
+ SCVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,cli->pid);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv8,0);
+ SIVAL(cli->outbuf,smb_vwv11,capabilities);
+ p = smb_buf(cli->outbuf);
+
+ /* check wether to send the ASCII or UNICODE version of the password */
+
+ if ( (capabilities & CAP_UNICODE) == 0 ) {
+ p += clistr_push(cli, p, pass, -1, STR_TERMINATE); /* password */
+ SSVAL(cli->outbuf,smb_vwv7,PTR_DIFF(p, smb_buf(cli->outbuf)));
+ }
+ else {
+ p += clistr_push(cli, p, pass, -1, STR_UNICODE|STR_TERMINATE); /* unicode password */
+ SSVAL(cli->outbuf,smb_vwv8,PTR_DIFF(p, smb_buf(cli->outbuf)));
+ }
+
+ p += clistr_push(cli, p, user, -1, STR_TERMINATE); /* username */
+ p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE); /* workgroup */
+ p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
+ p += clistr_push(cli, p, lanman, -1, STR_TERMINATE);
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (cli_is_error(cli))
+ return False;
+
+ cli->vuid = SVAL(cli->inbuf,smb_uid);
+ p = smb_buf(cli->inbuf);
+ p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
+ fstrcpy(cli->user_name, user);
+
+ return True;
+}
+
+/****************************************************************************
+ do a NT1 NTLM/LM encrypted session setup - for when extended security
+ is not negotiated.
+ @param cli client state to create do session setup on
+ @param user username
+ @param pass *either* cleartext password (passlen !=24) or LM response.
+ @param ntpass NT response, implies ntpasslen >=24, implies pass is not clear
+ @param workgroup The user's domain.
+****************************************************************************/
+
+static BOOL cli_session_setup_nt1(struct cli_state *cli, const char *user,
+ const char *pass, size_t passlen,
+ const char *ntpass, size_t ntpasslen,
+ const char *workgroup)
+{
+ uint32 capabilities = cli_session_setup_capabilities(cli);
+ DATA_BLOB lm_response = data_blob(NULL, 0);
+ DATA_BLOB nt_response = data_blob(NULL, 0);
+ DATA_BLOB session_key = data_blob(NULL, 0);
+ BOOL ret = False;
+ char *p;
+
+ if (passlen == 0) {
+ /* do nothing - guest login */
+ } else if (passlen != 24) {
+ if (lp_client_ntlmv2_auth()) {
+ DATA_BLOB server_chal;
+ DATA_BLOB names_blob;
+ server_chal = data_blob(cli->secblob.data, MIN(cli->secblob.length, 8));
+
+ /* note that the 'workgroup' here is a best guess - we don't know
+ the server's domain at this point. The 'server name' is also
+ dodgy...
+ */
+ names_blob = NTLMv2_generate_names_blob(cli->called.name, workgroup);
+
+ if (!SMBNTLMv2encrypt(user, workgroup, pass, &server_chal,
+ &names_blob,
+ &lm_response, &nt_response, &session_key)) {
+ data_blob_free(&names_blob);
+ data_blob_free(&server_chal);
+ return False;
+ }
+ data_blob_free(&names_blob);
+ data_blob_free(&server_chal);
+
+ } else {
+ uchar nt_hash[16];
+ E_md4hash(pass, nt_hash);
+
+#ifdef LANMAN_ONLY
+ nt_response = data_blob(NULL, 0);
+#else
+ nt_response = data_blob(NULL, 24);
+ SMBNTencrypt(pass,cli->secblob.data,nt_response.data);
+#endif
+ /* non encrypted password supplied. Ignore ntpass. */
+ if (lp_client_lanman_auth()) {
+ lm_response = data_blob(NULL, 24);
+ if (!SMBencrypt(pass,cli->secblob.data, lm_response.data)) {
+ /* Oops, the LM response is invalid, just put
+ the NT response there instead */
+ data_blob_free(&lm_response);
+ lm_response = data_blob(nt_response.data, nt_response.length);
+ }
+ } else {
+ /* LM disabled, place NT# in LM field instead */
+ lm_response = data_blob(nt_response.data, nt_response.length);
+ }
+
+ session_key = data_blob(NULL, 16);
+#ifdef LANMAN_ONLY
+ E_deshash(pass, session_key.data);
+ memset(&session_key.data[8], '\0', 8);
+#else
+ SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
+#endif
+ }
+#ifdef LANMAN_ONLY
+ cli_simple_set_signing(cli, session_key, lm_response);
+#else
+ cli_simple_set_signing(cli, session_key, nt_response);
+#endif
+ } else {
+ /* pre-encrypted password supplied. Only used for
+ security=server, can't do
+ signing because we don't have original key */
+
+ lm_response = data_blob(pass, passlen);
+ nt_response = data_blob(ntpass, ntpasslen);
+ }
+
+ /* send a session setup command */
+ memset(cli->outbuf,'\0',smb_size);
+
+ set_message(cli->outbuf,13,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
+ cli_setup_packet(cli);
+
+ SCVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,cli->pid);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv7,lm_response.length);
+ SSVAL(cli->outbuf,smb_vwv8,nt_response.length);
+ SIVAL(cli->outbuf,smb_vwv11,capabilities);
+ p = smb_buf(cli->outbuf);
+ if (lm_response.length) {
+ memcpy(p,lm_response.data, lm_response.length); p += lm_response.length;
+ }
+ if (nt_response.length) {
+ memcpy(p,nt_response.data, nt_response.length); p += nt_response.length;
+ }
+ p += clistr_push(cli, p, user, -1, STR_TERMINATE);
+
+ /* Upper case here might help some NTLMv2 implementations */
+ p += clistr_push(cli, p, workgroup, -1, STR_TERMINATE|STR_UPPER);
+ p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
+ p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
+ cli_setup_bcc(cli, p);
+
+ if (!cli_send_smb(cli) || !cli_receive_smb(cli)) {
+ ret = False;
+ goto end;
+ }
+
+ /* show_msg(cli->inbuf); */
+
+ if (cli_is_error(cli)) {
+ ret = False;
+ goto end;
+ }
+
+ /* use the returned vuid from now on */
+ cli->vuid = SVAL(cli->inbuf,smb_uid);
+
+ p = smb_buf(cli->inbuf);
+ p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), -1, STR_TERMINATE);
+ p += clistr_pull(cli, cli->server_domain, p, sizeof(fstring), -1, STR_TERMINATE);
+
+ fstrcpy(cli->user_name, user);
+
+ if (session_key.data) {
+ /* Have plaintext orginal */
+ cli_set_session_key(cli, session_key);
+ }
+
+ ret = True;
+end:
+ data_blob_free(&lm_response);
+ data_blob_free(&nt_response);
+ data_blob_free(&session_key);
+ return ret;
+}
+
+/****************************************************************************
+ Send a extended security session setup blob
+****************************************************************************/
+
+static BOOL cli_session_setup_blob_send(struct cli_state *cli, DATA_BLOB blob)
+{
+ uint32 capabilities = cli_session_setup_capabilities(cli);
+ char *p;
+
+ capabilities |= CAP_EXTENDED_SECURITY;
+
+ /* send a session setup command */
+ memset(cli->outbuf,'\0',smb_size);
+
+ set_message(cli->outbuf,12,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBsesssetupX);
+
+ cli_setup_packet(cli);
+
+ SCVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,CLI_BUFFER_SIZE);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,1);
+ SIVAL(cli->outbuf,smb_vwv5,0);
+ SSVAL(cli->outbuf,smb_vwv7,blob.length);
+ SIVAL(cli->outbuf,smb_vwv10,capabilities);
+ p = smb_buf(cli->outbuf);
+ memcpy(p, blob.data, blob.length);
+ p += blob.length;
+ p += clistr_push(cli, p, "Unix", -1, STR_TERMINATE);
+ p += clistr_push(cli, p, "Samba", -1, STR_TERMINATE);
+ cli_setup_bcc(cli, p);
+ return cli_send_smb(cli);
+}
+
+/****************************************************************************
+ Send a extended security session setup blob, returning a reply blob.
+****************************************************************************/
+
+static DATA_BLOB cli_session_setup_blob_receive(struct cli_state *cli)
+{
+ DATA_BLOB blob2 = data_blob(NULL, 0);
+ char *p;
+ size_t len;
+
+ if (!cli_receive_smb(cli))
+ return blob2;
+
+ show_msg(cli->inbuf);
+
+ if (cli_is_error(cli) && !NT_STATUS_EQUAL(cli_nt_error(cli),
+ NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ return blob2;
+ }
+
+ /* use the returned vuid from now on */
+ cli->vuid = SVAL(cli->inbuf,smb_uid);
+
+ p = smb_buf(cli->inbuf);
+
+ blob2 = data_blob(p, SVAL(cli->inbuf, smb_vwv3));
+
+ p += blob2.length;
+ p += clistr_pull(cli, cli->server_os, p, sizeof(fstring), -1, STR_TERMINATE);
+
+ /* w2k with kerberos doesn't properly null terminate this field */
+ len = smb_buflen(cli->inbuf) - PTR_DIFF(p, smb_buf(cli->inbuf));
+ p += clistr_pull(cli, cli->server_type, p, sizeof(fstring), len, 0);
+
+ return blob2;
+}
+
+#ifdef HAVE_KRB5
+
+/****************************************************************************
+ Send a extended security session setup blob, returning a reply blob.
+****************************************************************************/
+
+static DATA_BLOB cli_session_setup_blob(struct cli_state *cli, DATA_BLOB blob)
+{
+ DATA_BLOB blob2 = data_blob(NULL, 0);
+ if (!cli_session_setup_blob_send(cli, blob)) {
+ return blob2;
+ }
+
+ return cli_session_setup_blob_receive(cli);
+}
+
+/****************************************************************************
+ Use in-memory credentials cache
+****************************************************************************/
+
+static void use_in_memory_ccache(void) {
+ setenv(KRB5_ENV_CCNAME, "MEMORY:cliconnect", 1);
+}
+
+/****************************************************************************
+ Do a spnego/kerberos encrypted session setup.
+****************************************************************************/
+
+static ADS_STATUS cli_session_setup_kerberos(struct cli_state *cli, const char *principal, const char *workgroup)
+{
+ DATA_BLOB blob2, negTokenTarg;
+ DATA_BLOB session_key_krb5;
+ DATA_BLOB null_blob = data_blob(NULL, 0);
+ int rc;
+
+ DEBUG(2,("Doing kerberos session setup\n"));
+
+ /* generate the encapsulated kerberos5 ticket */
+ rc = spnego_gen_negTokenTarg(principal, 0, &negTokenTarg, &session_key_krb5, 0);
+
+ if (rc) {
+ DEBUG(1, ("spnego_gen_negTokenTarg failed: %s\n", error_message(rc)));
+ return ADS_ERROR_KRB5(rc);
+ }
+
+#if 0
+ file_save("negTokenTarg.dat", negTokenTarg.data, negTokenTarg.length);
+#endif
+
+ cli_simple_set_signing(cli, session_key_krb5, null_blob);
+
+ blob2 = cli_session_setup_blob(cli, negTokenTarg);
+
+ /* we don't need this blob for kerberos */
+ data_blob_free(&blob2);
+
+ cli_set_session_key(cli, session_key_krb5);
+
+ data_blob_free(&negTokenTarg);
+ data_blob_free(&session_key_krb5);
+
+ if (cli_is_error(cli)) {
+ if (NT_STATUS_IS_OK(cli_nt_error(cli))) {
+ return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
+ }
+ }
+ return ADS_ERROR_NT(cli_nt_error(cli));
+}
+#endif /* HAVE_KRB5 */
+
+
+/****************************************************************************
+ Do a spnego/NTLMSSP encrypted session setup.
+****************************************************************************/
+
+static NTSTATUS cli_session_setup_ntlmssp(struct cli_state *cli, const char *user,
+ const char *pass, const char *domain)
+{
+ struct ntlmssp_state *ntlmssp_state;
+ NTSTATUS nt_status;
+ int turn = 1;
+ DATA_BLOB msg1;
+ DATA_BLOB blob = data_blob(NULL, 0);
+ DATA_BLOB blob_in = data_blob(NULL, 0);
+ DATA_BLOB blob_out = data_blob(NULL, 0);
+
+ cli_temp_set_signing(cli);
+
+ if (!NT_STATUS_IS_OK(nt_status = ntlmssp_client_start(&ntlmssp_state))) {
+ return nt_status;
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_username(ntlmssp_state, user))) {
+ return nt_status;
+ }
+ if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_domain(ntlmssp_state, domain))) {
+ return nt_status;
+ }
+ if (!NT_STATUS_IS_OK(nt_status = ntlmssp_set_password(ntlmssp_state, pass))) {
+ return nt_status;
+ }
+
+ do {
+ nt_status = ntlmssp_update(ntlmssp_state,
+ blob_in, &blob_out);
+ data_blob_free(&blob_in);
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(nt_status)) {
+ if (turn == 1) {
+ /* and wrap it in a SPNEGO wrapper */
+ msg1 = gen_negTokenInit(OID_NTLMSSP, blob_out);
+ } else {
+ /* wrap it in SPNEGO */
+ msg1 = spnego_gen_auth(blob_out);
+ }
+
+ /* now send that blob on its way */
+ if (!cli_session_setup_blob_send(cli, msg1)) {
+ DEBUG(3, ("Failed to send NTLMSSP/SPNEGO blob to server!\n"));
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ } else {
+ data_blob_free(&msg1);
+
+ blob = cli_session_setup_blob_receive(cli);
+
+ nt_status = cli_nt_error(cli);
+ if (cli_is_error(cli) && NT_STATUS_IS_OK(nt_status)) {
+ if (cli->smb_rw_error == READ_BAD_SIG) {
+ nt_status = NT_STATUS_ACCESS_DENIED;
+ } else {
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+ }
+ }
+
+ if (!blob.length) {
+ if (NT_STATUS_IS_OK(nt_status)) {
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ }
+ } else if ((turn == 1) &&
+ NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ DATA_BLOB tmp_blob = data_blob(NULL, 0);
+ /* the server might give us back two challenges */
+ if (!spnego_parse_challenge(blob, &blob_in,
+ &tmp_blob)) {
+ DEBUG(3,("Failed to parse challenges\n"));
+ nt_status = NT_STATUS_INVALID_PARAMETER;
+ }
+ data_blob_free(&tmp_blob);
+ } else {
+ if (!spnego_parse_auth_response(blob, nt_status,
+ &blob_in)) {
+ DEBUG(3,("Failed to parse auth response\n"));
+ if (NT_STATUS_IS_OK(nt_status)
+ || NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED))
+ nt_status = NT_STATUS_INVALID_PARAMETER;
+ }
+ }
+ data_blob_free(&blob);
+ data_blob_free(&blob_out);
+ turn++;
+ } while (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED));
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+
+ DATA_BLOB key = data_blob(ntlmssp_state->session_key.data,
+ ntlmssp_state->session_key.length);
+ DATA_BLOB null_blob = data_blob(NULL, 0);
+ BOOL res;
+
+ fstrcpy(cli->server_domain, ntlmssp_state->server_domain);
+ cli_set_session_key(cli, ntlmssp_state->session_key);
+
+ res = cli_simple_set_signing(cli, key, null_blob);
+
+ data_blob_free(&key);
+
+ if (res) {
+
+ /* 'resign' the last message, so we get the right sequence numbers
+ for checking the first reply from the server */
+ cli_calculate_sign_mac(cli);
+
+ if (!cli_check_sign_mac(cli)) {
+ nt_status = NT_STATUS_ACCESS_DENIED;
+ }
+ }
+ }
+
+ /* we have a reference conter on ntlmssp_state, if we are signing
+ then the state will be kept by the signing engine */
+
+ ntlmssp_end(&ntlmssp_state);
+
+ return nt_status;
+}
+
+/****************************************************************************
+ Do a spnego encrypted session setup.
+****************************************************************************/
+
+ADS_STATUS cli_session_setup_spnego(struct cli_state *cli, const char *user,
+ const char *pass, const char *domain)
+{
+ char *principal;
+ char *OIDs[ASN1_MAX_OIDS];
+ int i;
+#ifdef HAVE_KRB5
+ BOOL got_kerberos_mechanism = False;
+#endif
+ DATA_BLOB blob;
+
+ DEBUG(3,("Doing spnego session setup (blob length=%lu)\n", (unsigned long)cli->secblob.length));
+
+ /* the server might not even do spnego */
+ if (cli->secblob.length <= 16) {
+ DEBUG(3,("server didn't supply a full spnego negprot\n"));
+ goto ntlmssp;
+ }
+
+#if 0
+ file_save("negprot.dat", cli->secblob.data, cli->secblob.length);
+#endif
+
+ /* there is 16 bytes of GUID before the real spnego packet starts */
+ blob = data_blob(cli->secblob.data+16, cli->secblob.length-16);
+
+ /* the server sent us the first part of the SPNEGO exchange in the negprot
+ reply */
+ if (!spnego_parse_negTokenInit(blob, OIDs, &principal)) {
+ data_blob_free(&blob);
+ return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ }
+ data_blob_free(&blob);
+
+ /* make sure the server understands kerberos */
+ for (i=0;OIDs[i];i++) {
+ DEBUG(3,("got OID=%s\n", OIDs[i]));
+#ifdef HAVE_KRB5
+ if (strcmp(OIDs[i], OID_KERBEROS5_OLD) == 0 ||
+ strcmp(OIDs[i], OID_KERBEROS5) == 0) {
+ got_kerberos_mechanism = True;
+ }
+#endif
+ free(OIDs[i]);
+ }
+ DEBUG(3,("got principal=%s\n", principal));
+
+ fstrcpy(cli->user_name, user);
+
+#ifdef HAVE_KRB5
+ /* If password is set we reauthenticate to kerberos server
+ * and do not store results */
+
+ if (got_kerberos_mechanism && cli->use_kerberos) {
+ ADS_STATUS rc;
+
+ if (pass && *pass) {
+ int ret;
+
+ use_in_memory_ccache();
+ ret = kerberos_kinit_password(user, pass, 0 /* no time correction for now */, NULL, NULL);
+
+ if (ret){
+ SAFE_FREE(principal);
+ DEBUG(0, ("Kinit failed: %s\n", error_message(ret)));
+ if (cli->fallback_after_kerberos)
+ goto ntlmssp;
+ return ADS_ERROR_KRB5(ret);
+ }
+ }
+
+ rc = cli_session_setup_kerberos(cli, principal, domain);
+ if (ADS_ERR_OK(rc) || !cli->fallback_after_kerberos) {
+ SAFE_FREE(principal);
+ return rc;
+ }
+ }
+#endif
+
+ SAFE_FREE(principal);
+
+ntlmssp:
+
+ return ADS_ERROR_NT(cli_session_setup_ntlmssp(cli, user, pass, domain));
+}
+
+/****************************************************************************
+ Send a session setup. The username and workgroup is in UNIX character
+ format and must be converted to DOS codepage format before sending. If the
+ password is in plaintext, the same should be done.
+****************************************************************************/
+
+BOOL cli_session_setup(struct cli_state *cli,
+ const char *user,
+ const char *pass, int passlen,
+ const char *ntpass, int ntpasslen,
+ const char *workgroup)
+{
+ char *p;
+ fstring user2;
+
+ /* allow for workgroups as part of the username */
+ fstrcpy(user2, user);
+ if ((p=strchr_m(user2,'\\')) || (p=strchr_m(user2,'/')) ||
+ (p=strchr_m(user2,*lp_winbind_separator()))) {
+ *p = 0;
+ user = p+1;
+ workgroup = user2;
+ }
+
+ if (cli->protocol < PROTOCOL_LANMAN1)
+ return True;
+
+ /* now work out what sort of session setup we are going to
+ do. I have split this into separate functions to make the
+ flow a bit easier to understand (tridge) */
+
+ /* if its an older server then we have to use the older request format */
+
+ if (cli->protocol < PROTOCOL_NT1) {
+ if (!lp_client_lanman_auth() && passlen != 24 && (*pass)) {
+ DEBUG(1, ("Server requested LM password but 'client lanman auth'"
+ " is disabled\n"));
+ return False;
+ }
+
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0 &&
+ !lp_client_plaintext_auth() && (*pass)) {
+ DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
+ " is disabled\n"));
+ return False;
+ }
+
+ return cli_session_setup_lanman2(cli, user, pass, passlen, workgroup);
+ }
+
+ /* if no user is supplied then we have to do an anonymous connection.
+ passwords are ignored */
+
+ if (!user || !*user)
+ return cli_session_setup_guest(cli);
+
+ /* if the server is share level then send a plaintext null
+ password at this point. The password is sent in the tree
+ connect */
+
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) == 0)
+ return cli_session_setup_plaintext(cli, user, "", workgroup);
+
+ /* if the server doesn't support encryption then we have to use
+ plaintext. The second password is ignored */
+
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
+ if (!lp_client_plaintext_auth() && (*pass)) {
+ DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
+ " is disabled\n"));
+ return False;
+ }
+ return cli_session_setup_plaintext(cli, user, pass, workgroup);
+ }
+
+ /* if the server supports extended security then use SPNEGO */
+
+ if (cli->capabilities & CAP_EXTENDED_SECURITY) {
+ ADS_STATUS status = cli_session_setup_spnego(cli, user, pass, workgroup);
+ if (!ADS_ERR_OK(status)) {
+ DEBUG(3, ("SPNEGO login failed: %s\n", ads_errstr(status)));
+ return False;
+ }
+ return True;
+ }
+
+ /* otherwise do a NT1 style session setup */
+
+ return cli_session_setup_nt1(cli, user,
+ pass, passlen, ntpass, ntpasslen,
+ workgroup);
+}
+
+/****************************************************************************
+ Send a uloggoff.
+*****************************************************************************/
+
+BOOL cli_ulogoff(struct cli_state *cli)
+{
+ memset(cli->outbuf,'\0',smb_size);
+ set_message(cli->outbuf,2,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBulogoffX);
+ cli_setup_packet(cli);
+ SSVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv2,0); /* no additional info */
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ if (cli_is_error(cli)) {
+ return False;
+ }
+
+ cli->cnum = -1;
+ return True;
+}
+
+/****************************************************************************
+ Send a tconX.
+****************************************************************************/
+BOOL cli_send_tconX(struct cli_state *cli,
+ const char *share, const char *dev, const char *pass, int passlen)
+{
+ fstring fullshare, pword;
+ char *p;
+ memset(cli->outbuf,'\0',smb_size);
+ memset(cli->inbuf,'\0',smb_size);
+
+ fstrcpy(cli->share, share);
+
+ /* in user level security don't send a password now */
+ if (cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
+ passlen = 1;
+ pass = "";
+ }
+
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) && *pass && passlen != 24) {
+ if (!lp_client_lanman_auth()) {
+ DEBUG(1, ("Server requested LANMAN password (share-level security) but 'client use lanman auth'"
+ " is disabled\n"));
+ return False;
+ }
+
+ /*
+ * Non-encrypted passwords - convert to DOS codepage before encryption.
+ */
+ passlen = 24;
+ SMBencrypt(pass,cli->secblob.data,(uchar *)pword);
+ } else {
+ if((cli->sec_mode & (NEGOTIATE_SECURITY_USER_LEVEL|NEGOTIATE_SECURITY_CHALLENGE_RESPONSE)) == 0) {
+ if (!lp_client_plaintext_auth() && (*pass)) {
+ DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
+ " is disabled\n"));
+ return False;
+ }
+
+ /*
+ * Non-encrypted passwords - convert to DOS codepage before using.
+ */
+ passlen = clistr_push(cli, pword, pass, sizeof(pword), STR_TERMINATE);
+
+ } else {
+ memcpy(pword, pass, passlen);
+ }
+ }
+
+ slprintf(fullshare, sizeof(fullshare)-1,
+ "\\\\%s\\%s", cli->desthost, share);
+
+ set_message(cli->outbuf,4, 0, True);
+ SCVAL(cli->outbuf,smb_com,SMBtconX);
+ cli_setup_packet(cli);
+
+ SSVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv3,passlen);
+
+ p = smb_buf(cli->outbuf);
+ memcpy(p,pword,passlen);
+ p += passlen;
+ p += clistr_push(cli, p, fullshare, -1, STR_TERMINATE |STR_UPPER);
+ p += clistr_push(cli, p, dev, -1, STR_TERMINATE |STR_UPPER | STR_ASCII);
+
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ if (cli_is_error(cli))
+ return False;
+
+ clistr_pull(cli, cli->dev, smb_buf(cli->inbuf), sizeof(fstring), -1, STR_TERMINATE|STR_ASCII);
+
+ if (cli->protocol >= PROTOCOL_NT1 &&
+ smb_buflen(cli->inbuf) == 3) {
+ /* almost certainly win95 - enable bug fixes */
+ cli->win95 = True;
+ }
+
+ /* Make sure that we have the optional support 16-bit field. WCT > 2 */
+ /* Avoids issues when connecting to Win9x boxes sharing files */
+
+ cli->dfsroot = False;
+ if ( (CVAL(cli->inbuf, smb_wct))>2 && cli->protocol >= PROTOCOL_LANMAN2 )
+ cli->dfsroot = (SVAL( cli->inbuf, smb_vwv2 ) & SMB_SHARE_IN_DFS) ? True : False;
+
+ cli->cnum = SVAL(cli->inbuf,smb_tid);
+ return True;
+}
+
+/****************************************************************************
+ Send a tree disconnect.
+****************************************************************************/
+
+BOOL cli_tdis(struct cli_state *cli)
+{
+ memset(cli->outbuf,'\0',smb_size);
+ set_message(cli->outbuf,0,0,True);
+ SCVAL(cli->outbuf,smb_com,SMBtdis);
+ SSVAL(cli->outbuf,smb_tid,cli->cnum);
+ cli_setup_packet(cli);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ if (cli_is_error(cli)) {
+ return False;
+ }
+
+ cli->cnum = -1;
+ return True;
+}
+
+/****************************************************************************
+ Send a negprot command.
+****************************************************************************/
+
+void cli_negprot_send(struct cli_state *cli)
+{
+ char *p;
+ int numprots;
+
+ if (cli->protocol < PROTOCOL_NT1)
+ cli->use_spnego = False;
+
+ memset(cli->outbuf,'\0',smb_size);
+
+ /* setup the protocol strings */
+ set_message(cli->outbuf,0,0,True);
+
+ p = smb_buf(cli->outbuf);
+ for (numprots=0;
+ prots[numprots].name && prots[numprots].prot<=cli->protocol;
+ numprots++) {
+ *p++ = 2;
+ p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
+ }
+
+ SCVAL(cli->outbuf,smb_com,SMBnegprot);
+ cli_setup_bcc(cli, p);
+ cli_setup_packet(cli);
+
+ SCVAL(smb_buf(cli->outbuf),0,2);
+
+ cli_send_smb(cli);
+}
+
+/****************************************************************************
+ Send a negprot command.
+****************************************************************************/
+
+BOOL cli_negprot(struct cli_state *cli)
+{
+ char *p;
+ int numprots;
+ int plength;
+
+ if (cli->protocol < PROTOCOL_NT1)
+ cli->use_spnego = False;
+
+ memset(cli->outbuf,'\0',smb_size);
+
+ /* setup the protocol strings */
+ for (plength=0,numprots=0;
+ prots[numprots].name && prots[numprots].prot<=cli->protocol;
+ numprots++)
+ plength += strlen(prots[numprots].name)+2;
+
+ set_message(cli->outbuf,0,plength,True);
+
+ p = smb_buf(cli->outbuf);
+ for (numprots=0;
+ prots[numprots].name && prots[numprots].prot<=cli->protocol;
+ numprots++) {
+ *p++ = 2;
+ p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE);
+ }
+
+ SCVAL(cli->outbuf,smb_com,SMBnegprot);
+ cli_setup_packet(cli);
+
+ SCVAL(smb_buf(cli->outbuf),0,2);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (cli_is_error(cli) ||
+ ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
+ return(False);
+ }
+
+ cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot;
+
+ if ((cli->protocol < PROTOCOL_NT1) && cli->sign_info.mandatory_signing) {
+ DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n"));
+ return False;
+ }
+
+ if (cli->protocol >= PROTOCOL_NT1) {
+ /* NT protocol */
+ cli->sec_mode = CVAL(cli->inbuf,smb_vwv1);
+ cli->max_mux = SVAL(cli->inbuf, smb_vwv1+1);
+ cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1);
+ cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1);
+ cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1);
+ cli->serverzone *= 60;
+ /* this time arrives in real GMT */
+ cli->servertime = interpret_long_date(cli->inbuf+smb_vwv11+1);
+ cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
+ cli->capabilities = IVAL(cli->inbuf,smb_vwv9+1);
+ if (cli->capabilities & CAP_RAW_MODE) {
+ cli->readbraw_supported = True;
+ cli->writebraw_supported = True;
+ }
+ /* work out if they sent us a workgroup */
+ if (!(cli->capabilities & CAP_EXTENDED_SECURITY) &&
+ smb_buflen(cli->inbuf) > 8) {
+ clistr_pull(cli, cli->server_domain,
+ smb_buf(cli->inbuf)+8, sizeof(cli->server_domain),
+ smb_buflen(cli->inbuf)-8, STR_UNICODE|STR_NOALIGN);
+ }
+
+ /*
+ * As signing is slow we only turn it on if either the client or
+ * the server require it. JRA.
+ */
+
+ if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED) {
+ /* Fail if server says signing is mandatory and we don't want to support it. */
+ if (!cli->sign_info.allow_smb_signing) {
+ DEBUG(0,("cli_negprot: SMB signing is mandatory and we have disabled it.\n"));
+ return False;
+ }
+ cli->sign_info.negotiated_smb_signing = True;
+ cli->sign_info.mandatory_signing = True;
+ } else if (cli->sign_info.mandatory_signing && cli->sign_info.allow_smb_signing) {
+ /* Fail if client says signing is mandatory and the server doesn't support it. */
+ if (!(cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED)) {
+ DEBUG(1,("cli_negprot: SMB signing is mandatory and the server doesn't support it.\n"));
+ return False;
+ }
+ cli->sign_info.negotiated_smb_signing = True;
+ cli->sign_info.mandatory_signing = True;
+ } else if (cli->sec_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) {
+ cli->sign_info.negotiated_smb_signing = True;
+ }
+
+ if (cli->capabilities & (CAP_LARGE_READX|CAP_LARGE_WRITEX)) {
+ SAFE_FREE(cli->outbuf);
+ SAFE_FREE(cli->inbuf);
+ cli->outbuf = (char *)SMB_MALLOC(CLI_MAX_LARGE_READX_SIZE+SAFETY_MARGIN);
+ cli->inbuf = (char *)SMB_MALLOC(CLI_MAX_LARGE_READX_SIZE+SAFETY_MARGIN);
+ cli->bufsize = CLI_MAX_LARGE_READX_SIZE;
+ }
+
+ } else if (cli->protocol >= PROTOCOL_LANMAN1) {
+ cli->use_spnego = False;
+ cli->sec_mode = SVAL(cli->inbuf,smb_vwv1);
+ cli->max_xmit = SVAL(cli->inbuf,smb_vwv2);
+ cli->max_mux = SVAL(cli->inbuf, smb_vwv3);
+ cli->sesskey = IVAL(cli->inbuf,smb_vwv6);
+ cli->serverzone = SVALS(cli->inbuf,smb_vwv10);
+ cli->serverzone *= 60;
+ /* this time is converted to GMT by make_unix_date */
+ cli->servertime = cli_make_unix_date(cli,cli->inbuf+smb_vwv8);
+ cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0);
+ cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0);
+ cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf));
+ } else {
+ /* the old core protocol */
+ cli->use_spnego = False;
+ cli->sec_mode = 0;
+ cli->serverzone = get_time_zone(time(NULL));
+ }
+
+ cli->max_xmit = MIN(cli->max_xmit, CLI_BUFFER_SIZE);
+
+ /* a way to force ascii SMB */
+ if (getenv("CLI_FORCE_ASCII"))
+ cli->capabilities &= ~CAP_UNICODE;
+
+ return True;
+}
+
+/****************************************************************************
+ Send a session request. See rfc1002.txt 4.3 and 4.3.2.
+****************************************************************************/
+
+BOOL cli_session_request(struct cli_state *cli,
+ struct nmb_name *calling, struct nmb_name *called)
+{
+ char *p;
+ int len = 4;
+
+ memcpy(&(cli->calling), calling, sizeof(*calling));
+ memcpy(&(cli->called ), called , sizeof(*called ));
+
+ /* put in the destination name */
+ p = cli->outbuf+len;
+ name_mangle(cli->called .name, p, cli->called .name_type);
+ len += name_len(p);
+
+ /* and my name */
+ p = cli->outbuf+len;
+ name_mangle(cli->calling.name, p, cli->calling.name_type);
+ len += name_len(p);
+
+ /* 445 doesn't have session request */
+ if (cli->port == 445)
+ return True;
+
+ /* send a session request (RFC 1002) */
+ /* setup the packet length
+ * Remove four bytes from the length count, since the length
+ * field in the NBT Session Service header counts the number
+ * of bytes which follow. The cli_send_smb() function knows
+ * about this and accounts for those four bytes.
+ * CRH.
+ */
+ len -= 4;
+ _smb_setlen(cli->outbuf,len);
+ SCVAL(cli->outbuf,0,0x81);
+
+ cli_send_smb(cli);
+ DEBUG(5,("Sent session request\n"));
+
+ if (!cli_receive_smb(cli))
+ return False;
+
+ if (CVAL(cli->inbuf,0) == 0x84) {
+ /* C. Hoch 9/14/95 Start */
+ /* For information, here is the response structure.
+ * We do the byte-twiddling to for portability.
+ struct RetargetResponse{
+ unsigned char type;
+ unsigned char flags;
+ int16 length;
+ int32 ip_addr;
+ int16 port;
+ };
+ */
+ int port = (CVAL(cli->inbuf,8)<<8)+CVAL(cli->inbuf,9);
+ /* SESSION RETARGET */
+ putip((char *)&cli->dest_ip,cli->inbuf+4);
+
+ cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip, port, LONG_CONNECT_TIMEOUT);
+ if (cli->fd == -1)
+ return False;
+
+ DEBUG(3,("Retargeted\n"));
+
+ set_socket_options(cli->fd,user_socket_options);
+
+ /* Try again */
+ {
+ static int depth;
+ BOOL ret;
+ if (depth > 4) {
+ DEBUG(0,("Retarget recursion - failing\n"));
+ return False;
+ }
+ depth++;
+ ret = cli_session_request(cli, calling, called);
+ depth--;
+ return ret;
+ }
+ } /* C. Hoch 9/14/95 End */
+
+ if (CVAL(cli->inbuf,0) != 0x82) {
+ /* This is the wrong place to put the error... JRA. */
+ cli->rap_error = CVAL(cli->inbuf,4);
+ return False;
+ }
+ return(True);
+}
+
+/****************************************************************************
+ Open the client sockets.
+****************************************************************************/
+
+BOOL cli_connect(struct cli_state *cli, const char *host, struct in_addr *ip)
+{
+ int name_type = 0x20;
+ char *p;
+
+ /* reasonable default hostname */
+ if (!host) host = "*SMBSERVER";
+
+ fstrcpy(cli->desthost, host);
+
+ /* allow hostnames of the form NAME#xx and do a netbios lookup */
+ if ((p = strchr(cli->desthost, '#'))) {
+ name_type = strtol(p+1, NULL, 16);
+ *p = 0;
+ }
+
+ if (!ip || is_zero_ip(*ip)) {
+ if (!resolve_name(cli->desthost, &cli->dest_ip, name_type)) {
+ return False;
+ }
+ if (ip) *ip = cli->dest_ip;
+ } else {
+ cli->dest_ip = *ip;
+ }
+
+ if (getenv("LIBSMB_PROG")) {
+ cli->fd = sock_exec(getenv("LIBSMB_PROG"));
+ } else {
+ /* try 445 first, then 139 */
+ int port = cli->port?cli->port:445;
+ cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip,
+ port, cli->timeout);
+ if (cli->fd == -1 && cli->port == 0) {
+ port = 139;
+ cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip,
+ port, cli->timeout);
+ }
+ if (cli->fd != -1)
+ cli->port = port;
+ }
+ if (cli->fd == -1) {
+ DEBUG(1,("Error connecting to %s (%s)\n",
+ ip?inet_ntoa(*ip):host,strerror(errno)));
+ return False;
+ }
+
+ set_socket_options(cli->fd,user_socket_options);
+
+ return True;
+}
+
+/**
+ establishes a connection to after the negprot.
+ @param output_cli A fully initialised cli structure, non-null only on success
+ @param dest_host The netbios name of the remote host
+ @param dest_ip (optional) The the destination IP, NULL for name based lookup
+ @param port (optional) The destination port (0 for default)
+ @param retry BOOL. Did this connection fail with a retryable error ?
+
+*/
+NTSTATUS cli_start_connection(struct cli_state **output_cli,
+ const char *my_name,
+ const char *dest_host,
+ struct in_addr *dest_ip, int port,
+ int signing_state, int flags,
+ BOOL *retry)
+{
+ NTSTATUS nt_status;
+ struct nmb_name calling;
+ struct nmb_name called;
+ struct cli_state *cli;
+ struct in_addr ip;
+
+ if (retry)
+ *retry = False;
+
+ if (!my_name)
+ my_name = global_myname();
+
+ if (!(cli = cli_initialise(NULL)))
+ return NT_STATUS_NO_MEMORY;
+
+ make_nmb_name(&calling, my_name, 0x0);
+ make_nmb_name(&called , dest_host, 0x20);
+
+ if (cli_set_port(cli, port) != port) {
+ cli_shutdown(cli);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ cli_set_timeout(cli, 10000); /* 10 seconds. */
+
+ if (dest_ip)
+ ip = *dest_ip;
+ else
+ ZERO_STRUCT(ip);
+
+again:
+
+ DEBUG(3,("Connecting to host=%s\n", dest_host));
+
+ if (!cli_connect(cli, dest_host, &ip)) {
+ DEBUG(1,("cli_start_connection: failed to connect to %s (%s)\n",
+ nmb_namestr(&called), inet_ntoa(ip)));
+ cli_shutdown(cli);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (retry)
+ *retry = True;
+
+ if (!cli_session_request(cli, &calling, &called)) {
+ char *p;
+ DEBUG(1,("session request to %s failed (%s)\n",
+ called.name, cli_errstr(cli)));
+ if ((p=strchr(called.name, '.')) && !is_ipaddress(called.name)) {
+ *p = 0;
+ goto again;
+ }
+ if (strcmp(called.name, "*SMBSERVER")) {
+ make_nmb_name(&called , "*SMBSERVER", 0x20);
+ goto again;
+ }
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ cli_setup_signing_state(cli, signing_state);
+
+ if (flags & CLI_FULL_CONNECTION_DONT_SPNEGO)
+ cli->use_spnego = False;
+ else if (flags & CLI_FULL_CONNECTION_USE_KERBEROS)
+ cli->use_kerberos = True;
+
+ if (!cli_negprot(cli)) {
+ DEBUG(1,("failed negprot\n"));
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ cli_shutdown(cli);
+ return nt_status;
+ }
+
+ *output_cli = cli;
+ return NT_STATUS_OK;
+}
+
+
+/**
+ establishes a connection right up to doing tconX, password specified.
+ @param output_cli A fully initialised cli structure, non-null only on success
+ @param dest_host The netbios name of the remote host
+ @param dest_ip (optional) The the destination IP, NULL for name based lookup
+ @param port (optional) The destination port (0 for default)
+ @param service (optional) The share to make the connection to. Should be 'unqualified' in any way.
+ @param service_type The 'type' of serivice.
+ @param user Username, unix string
+ @param domain User's domain
+ @param password User's password, unencrypted unix string.
+ @param retry BOOL. Did this connection fail with a retryable error ?
+*/
+
+NTSTATUS cli_full_connection(struct cli_state **output_cli,
+ const char *my_name,
+ const char *dest_host,
+ struct in_addr *dest_ip, int port,
+ const char *service, const char *service_type,
+ const char *user, const char *domain,
+ const char *password, int flags,
+ int signing_state,
+ BOOL *retry)
+{
+ NTSTATUS nt_status;
+ struct cli_state *cli = NULL;
+
+ nt_status = cli_start_connection(&cli, my_name, dest_host,
+ dest_ip, port, signing_state, flags, retry);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ if (!cli_session_setup(cli, user, password, strlen(password)+1,
+ password, strlen(password)+1,
+ domain)) {
+ if ((flags & CLI_FULL_CONNECTION_ANNONYMOUS_FALLBACK)
+ && cli_session_setup(cli, "", "", 0, "", 0, domain)) {
+ } else {
+ nt_status = cli_nt_error(cli);
+ DEBUG(1,("failed session setup with %s\n", nt_errstr(nt_status)));
+ cli_shutdown(cli);
+ if (NT_STATUS_IS_OK(nt_status))
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ return nt_status;
+ }
+ }
+
+ if (service) {
+ if (!cli_send_tconX(cli, service, service_type,
+ password, strlen(password)+1)) {
+ nt_status = cli_nt_error(cli);
+ DEBUG(1,("failed tcon_X with %s\n", nt_errstr(nt_status)));
+ cli_shutdown(cli);
+ if (NT_STATUS_IS_OK(nt_status)) {
+ nt_status = NT_STATUS_UNSUCCESSFUL;
+ }
+ return nt_status;
+ }
+ }
+
+ cli_init_creds(cli, user, domain, password);
+
+ *output_cli = cli;
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Attempt a NetBIOS session request, falling back to *SMBSERVER if needed.
+****************************************************************************/
+
+BOOL attempt_netbios_session_request(struct cli_state *cli, const char *srchost, const char *desthost,
+ struct in_addr *pdest_ip)
+{
+ struct nmb_name calling, called;
+
+ make_nmb_name(&calling, srchost, 0x0);
+
+ /*
+ * If the called name is an IP address
+ * then use *SMBSERVER immediately.
+ */
+
+ if(is_ipaddress(desthost))
+ make_nmb_name(&called, "*SMBSERVER", 0x20);
+ else
+ make_nmb_name(&called, desthost, 0x20);
+
+ if (!cli_session_request(cli, &calling, &called)) {
+ struct nmb_name smbservername;
+
+ make_nmb_name(&smbservername , "*SMBSERVER", 0x20);
+
+ /*
+ * If the name wasn't *SMBSERVER then
+ * try with *SMBSERVER if the first name fails.
+ */
+
+ if (nmb_name_equal(&called, &smbservername)) {
+
+ /*
+ * The name used was *SMBSERVER, don't bother with another name.
+ */
+
+ DEBUG(0,("attempt_netbios_session_request: %s rejected the session for name *SMBSERVER \
+with error %s.\n", desthost, cli_errstr(cli) ));
+ return False;
+ }
+
+ /*
+ * We need to close the connection here but can't call cli_shutdown as
+ * will free an allocated cli struct. cli_close_connection was invented
+ * for this purpose. JRA. Based on work by "Kim R. Pedersen" <krp@filanet.dk>.
+ */
+
+ cli_close_connection(cli);
+
+ if (!cli_initialise(cli) ||
+ !cli_connect(cli, desthost, pdest_ip) ||
+ !cli_session_request(cli, &calling, &smbservername)) {
+ DEBUG(0,("attempt_netbios_session_request: %s rejected the session for \
+name *SMBSERVER with error %s\n", desthost, cli_errstr(cli) ));
+ return False;
+ }
+ }
+
+ return True;
+}
+
+
+
+
+
+/****************************************************************************
+ Send an old style tcon.
+****************************************************************************/
+NTSTATUS cli_raw_tcon(struct cli_state *cli,
+ const char *service, const char *pass, const char *dev,
+ uint16 *max_xmit, uint16 *tid)
+{
+ char *p;
+
+ if (!lp_client_plaintext_auth() && (*pass)) {
+ DEBUG(1, ("Server requested plaintext password but 'client use plaintext auth'"
+ " is disabled\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ memset(cli->outbuf,'\0',smb_size);
+ memset(cli->inbuf,'\0',smb_size);
+
+ set_message(cli->outbuf, 0, 0, True);
+ SCVAL(cli->outbuf,smb_com,SMBtcon);
+ cli_setup_packet(cli);
+
+ p = smb_buf(cli->outbuf);
+ *p++ = 4; p += clistr_push(cli, p, service, -1, STR_TERMINATE | STR_NOALIGN);
+ *p++ = 4; p += clistr_push(cli, p, pass, -1, STR_TERMINATE | STR_NOALIGN);
+ *p++ = 4; p += clistr_push(cli, p, dev, -1, STR_TERMINATE | STR_NOALIGN);
+
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli)) {
+ return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
+ }
+
+ if (cli_is_error(cli)) {
+ return cli_nt_error(cli);
+ }
+
+ *max_xmit = SVAL(cli->inbuf, smb_vwv0);
+ *tid = SVAL(cli->inbuf, smb_vwv1);
+
+ return NT_STATUS_OK;
+}
+
+/* Return a cli_state pointing at the IPC$ share for the given server */
+
+struct cli_state *get_ipc_connect(char *server, struct in_addr *server_ip,
+ struct user_auth_info *user_info)
+{
+ struct cli_state *cli;
+ pstring myname;
+ NTSTATUS nt_status;
+
+ get_myname(myname);
+
+ nt_status = cli_full_connection(&cli, myname, server, server_ip, 0, "IPC$", "IPC",
+ user_info->username, lp_workgroup(), user_info->password,
+ CLI_FULL_CONNECTION_ANNONYMOUS_FALLBACK, Undefined, NULL);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ return cli;
+ } else if (is_ipaddress(server)) {
+ /* windows 9* needs a correct NMB name for connections */
+ fstring remote_name;
+
+ if (name_status_find("*", 0, 0, *server_ip, remote_name)) {
+ cli = get_ipc_connect(remote_name, server_ip, user_info);
+ if (cli)
+ return cli;
+ }
+ }
+ return NULL;
+}
+
+/*
+ * Given the IP address of a master browser on the network, return its
+ * workgroup and connect to it.
+ *
+ * This function is provided to allow additional processing beyond what
+ * get_ipc_connect_master_ip_bcast() does, e.g. to retrieve the list of master
+ * browsers and obtain each master browsers' list of domains (in case the
+ * first master browser is recently on the network and has not yet
+ * synchronized with other master browsers and therefore does not yet have the
+ * entire network browse list)
+ */
+
+struct cli_state *get_ipc_connect_master_ip(struct ip_service * mb_ip, pstring workgroup, struct user_auth_info *user_info)
+{
+ static fstring name;
+ struct cli_state *cli;
+ struct in_addr server_ip;
+
+ DEBUG(99, ("Looking up name of master browser %s\n",
+ inet_ntoa(mb_ip->ip)));
+
+ /*
+ * Do a name status query to find out the name of the master browser.
+ * We use <01><02>__MSBROWSE__<02>#01 if *#00 fails because a domain
+ * master browser will not respond to a wildcard query (or, at least,
+ * an NT4 server acting as the domain master browser will not).
+ *
+ * We might be able to use ONLY the query on MSBROWSE, but that's not
+ * yet been tested with all Windows versions, so until it is, leave
+ * the original wildcard query as the first choice and fall back to
+ * MSBROWSE if the wildcard query fails.
+ */
+ if (!name_status_find("*", 0, 0x1d, mb_ip->ip, name) &&
+ !name_status_find(MSBROWSE, 1, 0x1d, mb_ip->ip, name)) {
+
+ DEBUG(99, ("Could not retrieve name status for %s\n",
+ inet_ntoa(mb_ip->ip)));
+ return NULL;
+ }
+
+ if (!find_master_ip(name, &server_ip)) {
+ DEBUG(99, ("Could not find master ip for %s\n", name));
+ return NULL;
+ }
+
+ pstrcpy(workgroup, name);
+
+ DEBUG(4, ("found master browser %s, %s\n",
+ name, inet_ntoa(mb_ip->ip)));
+
+ cli = get_ipc_connect(inet_ntoa(server_ip), &server_ip, user_info);
+
+ return cli;
+
+}
+
+/*
+ * Return the IP address and workgroup of a master browser on the network, and
+ * connect to it.
+ */
+
+struct cli_state *get_ipc_connect_master_ip_bcast(pstring workgroup, struct user_auth_info *user_info)
+{
+ struct ip_service *ip_list;
+ struct cli_state *cli;
+ int i, count;
+
+ DEBUG(99, ("Do broadcast lookup for workgroups on local network\n"));
+
+ /* Go looking for workgroups by broadcasting on the local network */
+
+ if (!name_resolve_bcast(MSBROWSE, 1, &ip_list, &count)) {
+ DEBUG(99, ("No master browsers responded\n"));
+ return False;
+ }
+
+ for (i = 0; i < count; i++) {
+ DEBUG(99, ("Found master browser %s\n", inet_ntoa(ip_list[i].ip)));
+
+ cli = get_ipc_connect_master_ip(&ip_list[i], workgroup, user_info);
+ if (cli)
+ return(cli);
+ }
+
+ return NULL;
+}
projects / samba / blobdiff