/* * Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup * Copyright (C) Andrew Tridgell 1992-1998 * Copyright (C) Simo Sorce 2000 * Copyright (C) Gerald Carter 2000 * Copyright (C) Jeremy Allison 2001 * * 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" #ifdef WITH_TDB_SAM #define PDB_VERSION "20010830" #define PASSDB_FILE_NAME "/passdb.tdb" #define TDB_FORMAT_STRING "ddddddBBBBBBBBBBBBddBBwdwdBdd" #define USERPREFIX "USER_" #define RIDPREFIX "RID_" extern int DEBUGLEVEL; struct tdb_enum_info { TDB_CONTEXT *passwd_tdb; TDB_DATA key; }; static struct tdb_enum_info global_tdb_ent; /*static SAM_ACCOUNT global_sam_pass;*/ /********************************************************************** Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len *********************************************************************/ static BOOL init_sam_from_buffer (SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen) { /* times are stored as 32bit integer take care on system with 64bit wide time_t --SSS */ uint32 logon_time, logoff_time, kickoff_time, pass_last_set_time, pass_can_change_time, pass_must_change_time; char *username; char *domain; char *nt_username; char *dir_drive; char *unknown_str; char *munged_dial; char *fullname; char *homedir; char *logon_script; char *profile_path; char *acct_desc; char *workstations; uint32 username_len, domain_len, nt_username_len, dir_drive_len, unknown_str_len, munged_dial_len, fullname_len, homedir_len, logon_script_len, profile_path_len, acct_desc_len, workstations_len; uint32 /* uid, gid,*/ user_rid, group_rid, unknown_3, hours_len, unknown_5, unknown_6; uint16 acct_ctrl, logon_divs; uint8 *hours; static uint8 *lm_pw_ptr, *nt_pw_ptr; uint32 len = 0; uint32 lmpwlen, ntpwlen, hourslen; BOOL ret = True; /* unpack the buffer into variables */ len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING, &logon_time, &logoff_time, &kickoff_time, &pass_last_set_time, &pass_can_change_time, &pass_must_change_time, &username_len, &username, &domain_len, &domain, &nt_username_len, &nt_username, &fullname_len, &fullname, &homedir_len, &homedir, &dir_drive_len, &dir_drive, &logon_script_len, &logon_script, &profile_path_len, &profile_path, &acct_desc_len, &acct_desc, &workstations_len, &workstations, &unknown_str_len, &unknown_str, &munged_dial_len, &munged_dial, &user_rid, &group_rid, &lmpwlen, &lm_pw_ptr, &ntpwlen, &nt_pw_ptr, &acct_ctrl, &unknown_3, &logon_divs, &hours_len, &hourslen, &hours, &unknown_5, &unknown_6); if (len == -1) { ret = False; goto done; } pdb_set_logon_time(sampass, logon_time); pdb_set_logoff_time(sampass, logoff_time); pdb_set_kickoff_time(sampass, kickoff_time); pdb_set_pass_can_change_time(sampass, pass_can_change_time); pdb_set_pass_must_change_time(sampass, pass_must_change_time); pdb_set_pass_last_set_time(sampass, pass_last_set_time); pdb_set_username (sampass, username_len?username:NULL); pdb_set_domain (sampass, domain_len?domain:NULL); pdb_set_nt_username (sampass, nt_username_len?nt_username:NULL); pdb_set_fullname (sampass, fullname_len?fullname:NULL); pdb_set_homedir (sampass, homedir_len?homedir:NULL); pdb_set_dir_drive (sampass, dir_drive_len?dir_drive:NULL); pdb_set_logon_script (sampass, logon_script_len?logon_script:NULL); pdb_set_profile_path (sampass, profile_path_len?profile_path:NULL); pdb_set_acct_desc (sampass, acct_desc_len?acct_desc:NULL); pdb_set_workstations (sampass, workstations_len?workstations:NULL); pdb_set_munged_dial (sampass, munged_dial_len?munged_dial:NULL); pdb_set_lanman_passwd(sampass, lmpwlen?lm_pw_ptr:NULL); pdb_set_nt_passwd (sampass, ntpwlen?nt_pw_ptr:NULL); /*pdb_set_uid(sampass, uid); pdb_set_gid(sampass, gid);*/ pdb_set_user_rid(sampass, user_rid); pdb_set_group_rid(sampass, group_rid); pdb_set_unknown_3(sampass, unknown_3); pdb_set_hours_len(sampass, hours_len); pdb_set_unknown_5(sampass, unknown_5); pdb_set_unknown_6(sampass, unknown_6); pdb_set_acct_ctrl(sampass, acct_ctrl); pdb_set_logons_divs(sampass, logon_divs); pdb_set_hours(sampass, hours); done: SAFE_FREE(username); SAFE_FREE(domain); SAFE_FREE(nt_username); SAFE_FREE(fullname); SAFE_FREE(homedir); SAFE_FREE(dir_drive); SAFE_FREE(logon_script); SAFE_FREE(profile_path); SAFE_FREE(acct_desc); SAFE_FREE(workstations); SAFE_FREE(munged_dial); return ret; } /********************************************************************** Intialize a BYTE buffer from a SAM_ACCOUNT struct *********************************************************************/ static uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass) { size_t len, buflen; /* times are stored as 32bit integer take care on system with 64bit wide time_t --SSS */ uint32 logon_time, logoff_time, kickoff_time, pass_last_set_time, pass_can_change_time, pass_must_change_time; const char *username; const char *domain; const char *nt_username; const char *dir_drive; const char *unknown_str; const char *munged_dial; const char *fullname; const char *homedir; const char *logon_script; const char *profile_path; const char *acct_desc; const char *workstations; uint32 username_len, domain_len, nt_username_len, dir_drive_len, unknown_str_len, munged_dial_len, fullname_len, homedir_len, logon_script_len, profile_path_len, acct_desc_len, workstations_len; const uint8 *lm_pw; const uint8 *nt_pw; uint32 lm_pw_len = 16; uint32 nt_pw_len = 16; /* do we have a valid SAM_ACCOUNT pointer? */ if (sampass == NULL) return -1; *buf = NULL; buflen = 0; logon_time = (uint32)pdb_get_logon_time(sampass); logoff_time = (uint32)pdb_get_logoff_time(sampass); kickoff_time = (uint32)pdb_get_kickoff_time(sampass); pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass); pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass); pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass); username = pdb_get_username(sampass); if (username) username_len = strlen(username) +1; else username_len = 0; domain = pdb_get_domain(sampass); if (domain) domain_len = strlen(domain) +1; else domain_len = 0; nt_username = pdb_get_nt_username(sampass); if (nt_username) nt_username_len = strlen(nt_username) +1; else nt_username_len = 0; dir_drive = pdb_get_dirdrive(sampass); if (dir_drive) dir_drive_len = strlen(dir_drive) +1; else dir_drive_len = 0; unknown_str = NULL; unknown_str_len = 0; munged_dial = pdb_get_munged_dial(sampass); if (munged_dial) munged_dial_len = strlen(munged_dial) +1; else munged_dial_len = 0; fullname = pdb_get_fullname(sampass); if (fullname) fullname_len = strlen(fullname) +1; else fullname_len = 0; homedir = pdb_get_homedir(sampass); if (homedir) homedir_len = strlen(homedir) +1; else homedir_len = 0; logon_script = pdb_get_logon_script(sampass); if (logon_script) logon_script_len = strlen(logon_script) +1; else logon_script_len = 0; profile_path = pdb_get_profile_path(sampass); if (profile_path) profile_path_len = strlen(profile_path) +1; else profile_path_len = 0; acct_desc = pdb_get_acct_desc(sampass); if (acct_desc) acct_desc_len = strlen(acct_desc) +1; else acct_desc_len = 0; workstations = pdb_get_workstations(sampass); if (workstations) workstations_len = strlen(workstations) +1; else workstations_len = 0; lm_pw = pdb_get_lanman_passwd(sampass); if (!lm_pw) lm_pw_len = 0; nt_pw = pdb_get_nt_passwd(sampass); if (!nt_pw) nt_pw_len = 0; /* one time to get the size needed */ len = tdb_pack(NULL, 0, TDB_FORMAT_STRING, logon_time, logoff_time, kickoff_time, pass_last_set_time, pass_can_change_time, pass_must_change_time, username_len, username, domain_len, domain, nt_username_len, nt_username, fullname_len, fullname, homedir_len, homedir, dir_drive_len, dir_drive, logon_script_len, logon_script, profile_path_len, profile_path, acct_desc_len, acct_desc, workstations_len, workstations, unknown_str_len, unknown_str, munged_dial_len, munged_dial, pdb_get_user_rid(sampass), pdb_get_group_rid(sampass), lm_pw_len, lm_pw, nt_pw_len, nt_pw, pdb_get_acct_ctrl(sampass), pdb_get_unknown3(sampass), pdb_get_logon_divs(sampass), pdb_get_hours_len(sampass), MAX_HOURS_LEN, pdb_get_hours(sampass), pdb_get_unknown5(sampass), pdb_get_unknown6(sampass)); /* malloc the space needed */ if ( (*buf=(uint8*)malloc(len)) == NULL) { DEBUG(0,("init_buffer_from_sam: Unable to malloc() memory for buffer!\n")); return (-1); } /* now for the real call to tdb_pack() */ buflen = tdb_pack(*buf, len, TDB_FORMAT_STRING, logon_time, logoff_time, kickoff_time, pass_last_set_time, pass_can_change_time, pass_must_change_time, username_len, username, domain_len, domain, nt_username_len, nt_username, fullname_len, fullname, homedir_len, homedir, dir_drive_len, dir_drive, logon_script_len, logon_script, profile_path_len, profile_path, acct_desc_len, acct_desc, workstations_len, workstations, unknown_str_len, unknown_str, munged_dial_len, munged_dial, pdb_get_user_rid(sampass), pdb_get_group_rid(sampass), lm_pw_len, lm_pw, nt_pw_len, nt_pw, pdb_get_acct_ctrl(sampass), pdb_get_unknown3(sampass), pdb_get_logon_divs(sampass), pdb_get_hours_len(sampass), MAX_HOURS_LEN, pdb_get_hours(sampass), pdb_get_unknown5(sampass), pdb_get_unknown6(sampass)); /* check to make sure we got it correct */ if (buflen != len) { /* error */ SAFE_FREE (*buf); return (-1); } return (buflen); } /*************************************************************** Open the TDB passwd database for SAM account enumeration. ****************************************************************/ BOOL pdb_setsampwent(BOOL update) { pstring tdbfile; get_private_directory(tdbfile); pstrcat (tdbfile, PASSDB_FILE_NAME); /* Open tdb passwd */ if (!(global_tdb_ent.passwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600))) { DEBUG(0, ("Unable to open/create TDB passwd\n")); return False; } global_tdb_ent.key = tdb_firstkey(global_tdb_ent.passwd_tdb); return True; } /*************************************************************** End enumeration of the TDB passwd list. ****************************************************************/ void pdb_endsampwent(void) { if (global_tdb_ent.passwd_tdb) { tdb_close(global_tdb_ent.passwd_tdb); global_tdb_ent.passwd_tdb = NULL; } DEBUG(7, ("endtdbpwent: closed password file.\n")); } /***************************************************************** Get one SAM_ACCOUNT from the TDB (next in line) *****************************************************************/ BOOL pdb_getsampwent(SAM_ACCOUNT *user) { TDB_DATA data; struct passwd *pw; uid_t uid; gid_t gid; char *prefix = USERPREFIX; int prefixlen = strlen (prefix); if (user==NULL) { DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n")); return False; } /* skip all RID entries */ while ((global_tdb_ent.key.dsize != 0) && (strncmp (global_tdb_ent.key.dptr, prefix, prefixlen))) /* increment to next in line */ global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key); /* do we have an valid interation pointer? */ if(global_tdb_ent.passwd_tdb == NULL) { DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n")); return False; } data = tdb_fetch (global_tdb_ent.passwd_tdb, global_tdb_ent.key); if (!data.dptr) { DEBUG(5,("pdb_getsampwent: database entry not found.\n")); return False; } /* unpack the buffer */ if (!init_sam_from_buffer (user, data.dptr, data.dsize)) { DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n")); SAFE_FREE(data.dptr); return False; } SAFE_FREE(data.dptr); /* validate the account and fill in UNIX uid and gid. sys_getpwnam() is used instaed of Get_Pwnam() as we do not need to try case permutations */ if ((pw=sys_getpwnam(pdb_get_username(user))) == NULL) { DEBUG(0,("pdb_getsampwent: getpwnam(%s) return NULL. User does not exist!\n", pdb_get_username(user))); return False; } uid = pw->pw_uid; gid = pw->pw_gid; pdb_set_uid (user, uid); pdb_set_gid (user, gid); /* increment to next in line */ global_tdb_ent.key = tdb_nextkey (global_tdb_ent.passwd_tdb, global_tdb_ent.key); return True; } /****************************************************************** Lookup a name in the SAM TDB ******************************************************************/ BOOL pdb_getsampwnam (SAM_ACCOUNT *user, const char *sname) { TDB_CONTEXT *pwd_tdb; TDB_DATA data, key; fstring keystr; struct passwd *pw; pstring tdbfile; fstring name; uid_t uid; gid_t gid; if (user==NULL) { DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n")); return False; } /* Data is stored in all lower-case */ unix_strlower(sname, -1, name, sizeof(name)); get_private_directory(tdbfile); pstrcat (tdbfile, PASSDB_FILE_NAME); /* set search key */ slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* open the accounts TDB */ if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDONLY, 0600))) { DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd!\n")); return False; } /* get the record */ data = tdb_fetch (pwd_tdb, key); if (!data.dptr) { DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n")); DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); tdb_close (pwd_tdb); return False; } /* unpack the buffer */ if (!init_sam_from_buffer (user, data.dptr, data.dsize)) { DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n")); SAFE_FREE(data.dptr); return False; } SAFE_FREE(data.dptr); /* validate the account and fill in UNIX uid and gid. sys_getpwnam() is used instaed of Get_Pwnam() as we do not need to try case permutations */ if ((pw=sys_getpwnam(pdb_get_username(user)))) { uid = pw->pw_uid; gid = pw->pw_gid; pdb_set_uid (user, uid); pdb_set_gid (user, gid); } /* cleanup */ tdb_close (pwd_tdb); return True; } /*************************************************************************** Search by uid **************************************************************************/ BOOL pdb_getsampwuid (SAM_ACCOUNT* user, uid_t uid) { struct passwd *pw; fstring name; if (user==NULL) { DEBUG(0,("pdb_getsampwuid: SAM_ACCOUNT is NULL.\n")); return False; } pw = sys_getpwuid(uid); if (pw == NULL) { DEBUG(0,("pdb_getsampwuid: getpwuid(%d) return NULL. User does not exist!\n", uid)); return False; } fstrcpy (name, pw->pw_name); return pdb_getsampwnam (user, name); } /*************************************************************************** Search by rid **************************************************************************/ BOOL pdb_getsampwrid (SAM_ACCOUNT *user, uint32 rid) { TDB_CONTEXT *pwd_tdb; TDB_DATA data, key; fstring keystr; pstring tdbfile; fstring name; if (user==NULL) { DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n")); return False; } get_private_directory(tdbfile); pstrcat (tdbfile, PASSDB_FILE_NAME); /* set search key */ slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* open the accounts TDB */ if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDONLY, 0600))) { DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n")); return False; } /* get the record */ data = tdb_fetch (pwd_tdb, key); if (!data.dptr) { DEBUG(5,("pdb_getsampwrid (TDB): error fetching database.\n")); DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); tdb_close (pwd_tdb); return False; } fstrcpy (name, data.dptr); SAFE_FREE(data.dptr); tdb_close (pwd_tdb); return pdb_getsampwnam (user, name); } /*************************************************************************** Delete a SAM_ACCOUNT ****************************************************************************/ BOOL pdb_delete_sam_account(const char *sname) { SAM_ACCOUNT *sam_pass = NULL; TDB_CONTEXT *pwd_tdb; TDB_DATA key, data; fstring keystr; pstring tdbfile; uint32 rid; fstring name; unix_strlower(sname, -1, name, sizeof(name)); get_private_directory(tdbfile); pstrcat (tdbfile, PASSDB_FILE_NAME); /* open the TDB */ if (!(pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR, 0600))) { DEBUG(0, ("Unable to open TDB passwd!")); return False; } /* set the search key */ slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* get the record */ data = tdb_fetch (pwd_tdb, key); if (!data.dptr) { DEBUG(5,("pdb_delete_sam_account (TDB): error fetching database.\n")); DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); tdb_close (pwd_tdb); return False; } /* unpack the buffer */ if (!pdb_init_sam (&sam_pass)) { tdb_close (pwd_tdb); return False; } if (!init_sam_from_buffer (sam_pass, data.dptr, data.dsize)) { DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n")); tdb_close (pwd_tdb); SAFE_FREE(data.dptr); return False; } SAFE_FREE(data.dptr); rid = pdb_get_user_rid(sam_pass); pdb_free_sam (&sam_pass); /* it's outaa here! 8^) */ if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) { DEBUG(5, ("Error deleting entry from tdb passwd database!\n")); DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); tdb_close(pwd_tdb); return False; } /* delete also the RID key */ /* set the search key */ slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* it's outaa here! 8^) */ if (tdb_delete(pwd_tdb, key) != TDB_SUCCESS) { DEBUG(5, ("Error deleting entry from tdb rid database!\n")); DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); tdb_close(pwd_tdb); return False; } tdb_close(pwd_tdb); return True; } /*************************************************************************** Update the TDB SAM ****************************************************************************/ static BOOL tdb_update_sam(const SAM_ACCOUNT* newpwd, BOOL override, int flag) { TDB_CONTEXT *pwd_tdb = NULL; TDB_DATA key, data; uint8 *buf = NULL; fstring keystr; pstring tdbfile; fstring name; BOOL ret = True; get_private_directory(tdbfile); pstrcat (tdbfile, PASSDB_FILE_NAME); /* if we don't have a RID, then FAIL */ if (!pdb_get_user_rid(newpwd)) DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd))); if (!pdb_get_group_rid(newpwd)) DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd))); /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */ if ((data.dsize=init_buffer_from_sam (&buf, newpwd)) == -1) { DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n")); ret = False; goto done; } data.dptr = buf; unix_strlower(pdb_get_username(newpwd), -1, name, sizeof(name)); /* setup the USER index key */ slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* invalidate the existing TDB iterator if it is open */ if (global_tdb_ent.passwd_tdb) { tdb_close(global_tdb_ent.passwd_tdb); global_tdb_ent.passwd_tdb = NULL; } /* open the account TDB passwd*/ pwd_tdb = tdb_open_log(tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600); if (!pwd_tdb) { DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd!\n")); return False; } /* add the account */ if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) { DEBUG(0, ("Unable to modify passwd TDB!")); DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb))); ret = False; goto done; } /* setup RID data */ data.dsize = sizeof(fstring); data.dptr = name; /* setup the RID index key */ slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, pdb_get_user_rid(newpwd)); key.dptr = keystr; key.dsize = strlen (keystr) + 1; /* add the reference */ if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) { DEBUG(0, ("Unable to modify TDB passwd !")); DEBUGADD(0, (" Error: %s\n", tdb_errorstr(pwd_tdb))); ret = False; goto done; } done: /* cleanup */ tdb_close (pwd_tdb); SAFE_FREE(buf); return (ret); } /*************************************************************************** Modifies an existing SAM_ACCOUNT ****************************************************************************/ BOOL pdb_update_sam_account (const SAM_ACCOUNT *newpwd, BOOL override) { return (tdb_update_sam(newpwd, override, TDB_MODIFY)); } /*************************************************************************** Adds an existing SAM_ACCOUNT ****************************************************************************/ BOOL pdb_add_sam_account (const SAM_ACCOUNT *newpwd) { return (tdb_update_sam(newpwd, True, TDB_INSERT)); } #else /* Do *NOT* make this function static. It breaks the compile on gcc. JRA */ void samtdb_dummy_function(void) { } /* stop some compilers complaining */ #endif /* WITH_TDB_SAM */