+++ /dev/null
-/* UNIX SMBlib NetBIOS implementation
-
- Version 1.0
- SMBlib Utility Routines
-
- Copyright (C) Richard Sharpe 1996
-
-*/
-
-/*
- 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 "config.h"
-#include "clibrary.h"
-
-#include "smblib-priv.h"
-#include "rfcnb.h"
-
-/* The following two arrays need to be in step! */
-/* We must make it possible for callers to specify these ... */
-
-const char *SMB_Prots[] = {"PC NETWORK PROGRAM 1.0",
- "MICROSOFT NETWORKS 1.03",
- "MICROSOFT NETWORKS 3.0",
- "DOS LANMAN1.0",
- "LANMAN1.0",
- "DOS LM1.2X002",
- "LM1.2X002",
- "DOS LANMAN2.1",
- "LANMAN2.1",
- "Samba",
- "NT LM 0.12",
- "NT LANMAN 1.0",
- NULL};
-
-int SMB_Types[] = {SMB_P_Core,
- SMB_P_CorePlus,
- SMB_P_DOSLanMan1,
- SMB_P_DOSLanMan1,
- SMB_P_LanMan1,
- SMB_P_DOSLanMan2,
- SMB_P_LanMan2,
- SMB_P_LanMan2_1,
- SMB_P_LanMan2_1,
- SMB_P_NT1,
- SMB_P_NT1,
- SMB_P_NT1,
- -1};
-
-/* Figure out what protocol was accepted, given the list of dialect strings */
-/* We offered, and the index back from the server. We allow for a user */
-/* supplied list, and assume that it is a subset of our list */
-
-int SMB_Figure_Protocol(const char *dialects[], int prot_index)
-
-{ int i;
-
- if (dialects == SMB_Prots) { /* The jobs is easy, just index into table */
-
- return(SMB_Types[prot_index]);
- }
- else { /* Search through SMB_Prots looking for a match */
-
- for (i = 0; SMB_Prots[i] != NULL; i++) {
-
- if (strcmp(dialects[prot_index], SMB_Prots[i]) == 0) { /* A match */
-
- return(SMB_Types[i]);
-
- }
-
- }
-
- /* If we got here, then we are in trouble, because the protocol was not */
- /* One we understand ... */
-
- return(SMB_P_Unknown);
-
- }
-
-}
-
-
-/* Negotiate the protocol we will use from the list passed in Prots */
-/* we return the index of the accepted protocol in NegProt, -1 indicates */
-/* none acceptible, and our return value is 0 if ok, <0 if problems */
-
-int SMB_Negotiate(SMB_Handle_Type Con_Handle, const char *Prots[])
-{
- struct RFCNB_Pkt *pkt;
- int prots_len, i, pkt_len, prot, alloc_len;
- char *p;
-
- /* Figure out how long the prot list will be and allocate space for it */
-
- prots_len = 0;
-
- for (i = 0; Prots[i] != NULL; i++) {
-
- prots_len = prots_len + strlen(Prots[i]) + 2; /* Account for null etc */
-
- }
-
- /* The -1 accounts for the one byte smb_buf we have because some systems */
- /* don't like char msg_buf[] */
-
- pkt_len = SMB_negp_len + prots_len;
-
- /* Make sure that the pkt len is long enough for the max response ... */
- /* Which is a problem, because the encryption key len eec may be long */
-
- if (pkt_len < (SMB_hdr_wct_offset + (19 * 2) + 40)) {
-
- alloc_len = SMB_hdr_wct_offset + (19 * 2) + 40;
-
- }
- else {
-
- alloc_len = pkt_len;
-
- }
-
- pkt = (struct RFCNB_Pkt *)RFCNB_Alloc_Pkt(alloc_len);
-
- if (pkt == NULL) {
-
- SMBlib_errno = SMBlibE_NoSpace;
- return(SMBlibE_BAD);
-
- }
-
- /* Now plug in the bits we need */
-
- memset(SMB_Hdr(pkt), 0, SMB_negp_len);
- SIVAL(SMB_Hdr(pkt), SMB_hdr_idf_offset, SMB_DEF_IDF); /* Plunk in IDF */
- *(SMB_Hdr(pkt) + SMB_hdr_com_offset) = SMBnegprot;
- SSVAL(SMB_Hdr(pkt), SMB_hdr_pid_offset, Con_Handle -> pid);
- SSVAL(SMB_Hdr(pkt), SMB_hdr_tid_offset, 0);
- SSVAL(SMB_Hdr(pkt), SMB_hdr_mid_offset, Con_Handle -> mid);
- SSVAL(SMB_Hdr(pkt), SMB_hdr_uid_offset, Con_Handle -> uid);
- *(SMB_Hdr(pkt) + SMB_hdr_wct_offset) = 0;
-
- SSVAL(SMB_Hdr(pkt), SMB_negp_bcc_offset, prots_len);
-
- /* Now copy the prot strings in with the right stuff */
-
- p = (char *)(SMB_Hdr(pkt) + SMB_negp_buf_offset);
-
- for (i = 0; Prots[i] != NULL; i++) {
-
- *p = SMBdialectID;
- strcpy(p + 1, Prots[i]);
- p = p + strlen(Prots[i]) + 2; /* Adjust len of p for null plus dialectID */
-
- }
-
- /* Now send the packet and sit back ... */
-
- if (RFCNB_Send(Con_Handle -> Trans_Connect, pkt, pkt_len) < 0){
-
-
-#ifdef DEBUG
- fprintf(stderr, "Error sending negotiate protocol\n");
-#endif
-
- RFCNB_Free_Pkt(pkt);
- SMBlib_errno = -SMBlibE_SendFailed; /* Failed, check lower layer errno */
- return(SMBlibE_BAD);
-
- }
-
- /* Now get the response ... */
-
- if (RFCNB_Recv(Con_Handle -> Trans_Connect, pkt, alloc_len) < 0) {
-
-#ifdef DEBUG
- fprintf(stderr, "Error receiving response to negotiate\n");
-#endif
-
- RFCNB_Free_Pkt(pkt);
- SMBlib_errno = -SMBlibE_RecvFailed; /* Failed, check lower layer errno */
- return(SMBlibE_BAD);
-
- }
-
- if (CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset) != SMBC_SUCCESS) { /* Process error */
-
-#ifdef DEBUG
- fprintf(stderr, "SMB_Negotiate failed with errorclass = %i, Error Code = %i\n",
- CVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset),
- SVAL(SMB_Hdr(pkt), SMB_hdr_err_offset));
-#endif
-
- SMBlib_SMB_Error = IVAL(SMB_Hdr(pkt), SMB_hdr_rcls_offset);
- RFCNB_Free_Pkt(pkt);
- SMBlib_errno = SMBlibE_Remote;
- return(SMBlibE_BAD);
-
- }
-
- if (SVAL(SMB_Hdr(pkt), SMB_negrCP_idx_offset) == 0xFFFF) {
-
-#ifdef DEBUG
- fprintf(stderr, "None of our protocols was accepted ... ");
-#endif
-
- RFCNB_Free_Pkt(pkt);
- SMBlib_errno = SMBlibE_NegNoProt;
- return(SMBlibE_BAD);
-
- }
-
- /* Now, unpack the info from the response, if any and evaluate the proto */
- /* selected. We must make sure it is one we like ... */
-
- Con_Handle -> prot_IDX = prot = SVAL(SMB_Hdr(pkt), SMB_negrCP_idx_offset);
- Con_Handle -> protocol = SMB_Figure_Protocol(Prots, prot);
-
- if (Con_Handle -> protocol == SMB_P_Unknown) { /* No good ... */
-
- RFCNB_Free_Pkt(pkt);
- SMBlib_errno = SMBlibE_ProtUnknown;
- return(SMBlibE_BAD);
-
- }
-
- switch (CVAL(SMB_Hdr(pkt), SMB_hdr_wct_offset)) {
-
- case 0x01: /* No more info ... */
-
- break;
-
- case 13: /* Up to and including LanMan 2.1 */
-
- Con_Handle -> Security = SVAL(SMB_Hdr(pkt), SMB_negrLM_sec_offset);
- Con_Handle -> encrypt_passwords = ((Con_Handle -> Security & SMB_sec_encrypt_mask) != 0x00);
- Con_Handle -> Security = Con_Handle -> Security & SMB_sec_user_mask;
-
- Con_Handle -> max_xmit = SVAL(SMB_Hdr(pkt), SMB_negrLM_mbs_offset);
- Con_Handle -> MaxMPX = SVAL(SMB_Hdr(pkt), SMB_negrLM_mmc_offset);
- Con_Handle -> MaxVC = SVAL(SMB_Hdr(pkt), SMB_negrLM_mnv_offset);
- Con_Handle -> Raw_Support = SVAL(SMB_Hdr(pkt), SMB_negrLM_rm_offset);
- Con_Handle -> SessionKey = IVAL(SMB_Hdr(pkt), SMB_negrLM_sk_offset);
- Con_Handle -> SvrTZ = SVAL(SMB_Hdr(pkt), SMB_negrLM_stz_offset);
- Con_Handle -> Encrypt_Key_Len = SVAL(SMB_Hdr(pkt), SMB_negrLM_ekl_offset);
-
- p = (SMB_Hdr(pkt) + SMB_negrLM_buf_offset);
- fprintf(stderr, "%p", (char *)(SMB_Hdr(pkt) + SMB_negrLM_buf_offset));
- memcpy(Con_Handle->Encrypt_Key, p, 8);
-
- p = (SMB_Hdr(pkt) + SMB_negrLM_buf_offset + Con_Handle -> Encrypt_Key_Len);
-
- strncpy(p, Con_Handle -> Svr_PDom, sizeof(Con_Handle -> Svr_PDom) - 1);
-
- break;
-
- case 17: /* NT LM 0.12 and LN LM 1.0 */
-
- Con_Handle -> Security = SVAL(SMB_Hdr(pkt), SMB_negrNTLM_sec_offset);
- Con_Handle -> encrypt_passwords = ((Con_Handle -> Security & SMB_sec_encrypt_mask) != 0x00);
- Con_Handle -> Security = Con_Handle -> Security & SMB_sec_user_mask;
-
- Con_Handle -> max_xmit = IVAL(SMB_Hdr(pkt), SMB_negrNTLM_mbs_offset);
- Con_Handle -> MaxMPX = SVAL(SMB_Hdr(pkt), SMB_negrNTLM_mmc_offset);
- Con_Handle -> MaxVC = SVAL(SMB_Hdr(pkt), SMB_negrNTLM_mnv_offset);
- Con_Handle -> MaxRaw = IVAL(SMB_Hdr(pkt), SMB_negrNTLM_mrs_offset);
- Con_Handle -> SessionKey = IVAL(SMB_Hdr(pkt), SMB_negrNTLM_sk_offset);
- Con_Handle -> SvrTZ = SVAL(SMB_Hdr(pkt), SMB_negrNTLM_stz_offset);
- Con_Handle -> Encrypt_Key_Len = CVAL(SMB_Hdr(pkt), SMB_negrNTLM_ekl_offset);
-
- p = (SMB_Hdr(pkt) + SMB_negrNTLM_buf_offset );
- memcpy(Con_Handle -> Encrypt_Key, p, 8);
- p = (SMB_Hdr(pkt) + SMB_negrNTLM_buf_offset + Con_Handle -> Encrypt_Key_Len);
-
- strncpy(p, Con_Handle -> Svr_PDom, sizeof(Con_Handle -> Svr_PDom) - 1);
-
- break;
-
- default:
-
-#ifdef DEBUG
- fprintf(stderr, "Unknown NegProt response format ... Ignored\n");
- fprintf(stderr, " wct = %i\n", CVAL(SMB_Hdr(pkt), SMB_hdr_wct_offset));
-#endif
-
- break;
- }
-
-#ifdef DEBUG
- fprintf(stderr, "Protocol selected is: %i:%s\n", prot, Prots[prot]);
-#endif
-
- RFCNB_Free_Pkt(pkt);
- return(0);
-
-}
-
-/* Get our hostname */
-
-void SMB_Get_My_Name(char *name, int len)
-
-{
- if (gethostname(name, len) < 0) { /* Error getting name */
-
- strncpy(name, "unknown", len);
-
- /* Should check the error */
-
-#ifdef DEBUG
- fprintf(stderr, "gethostname in SMB_Get_My_Name returned error:");
- perror("");
-#endif
-
- }
-
- /* only keep the portion up to the first "." */
-
-
-}
~ian / innduct.git / blobdiff