/* * Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup * Copyright (C) Andrew Tridgell 1992-1998 Modified by Jeremy Allison 1995. * Copyright (C) Benny Holmgren 1998 <bigfoot@astrakan.hgs.se> * Copyright (C) Luke Kenneth Casson Leighton 1996-1998. * * 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. */ #ifdef WITH_NISPLUS #include "includes.h" #include <rpcsvc/nis.h> extern int DEBUGLEVEL; static int gotalarm; /*************************************************************** the fields for the NIS+ table, generated from mknissmbpwtbl.sh, are: name=S,nogw=r uid=S,nogw=r user_rid=S,nogw=r smb_grpid=,nw+r group_rid=,nw+r acb=,nw+r lmpwd=C,nw=,g=r,o=rm ntpwd=C,nw=,g=r,o=rm logon_t=,nw+r logoff_t=,nw+r kick_t=,nw+r pwdlset_t=,nw+r pwdlchg_t=,nw+r pwdmchg_t=,nw+r full_name=,nw+r home_dir=,nw+r dir_drive=,nw+r logon_script=,nw+r profile_path=,nw+r acct_desc=,nw+r workstations=,nw+r hours=,nw+r ****************************************************************/ #define NPF_NAME 0 #define NPF_UID 1 #define NPF_USER_RID 2 #define NPF_SMB_GRPID 3 #define NPF_GROUP_RID 4 #define NPF_ACB 5 #define NPF_LMPWD 6 #define NPF_NTPWD 7 #define NPF_LOGON_T 8 #define NPF_LOGOFF_T 9 #define NPF_KICK_T 10 #define NPF_PWDLSET_T 11 #define NPF_PWDLCHG_T 12 #define NPF_PWDMCHG_T 13 #define NPF_FULL_NAME 14 #define NPF_HOME_DIR 15 #define NPF_DIR_DRIVE 16 #define NPF_LOGON_SCRIPT 17 #define NPF_PROFILE_PATH 18 #define NPF_ACCT_DESC 19 #define NPF_WORKSTATIONS 20 #define NPF_HOURS 21 /*************************************************************** Signal function to tell us we timed out. ****************************************************************/ static void gotalarm_sig(void) { gotalarm = 1; } /*************************************************************** make_nisname_from_user_rid ****************************************************************/ static char *make_nisname_from_user_rid(uint32 rid, char *pfile) { static pstring nisname; safe_strcpy(nisname, "[user_rid=", sizeof(nisname)-1); slprintf(nisname, sizeof(nisname)-1, "%s%d", nisname, rid); safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1); safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1); return nisname; } /*************************************************************** make_nisname_from_uid ****************************************************************/ static char *make_nisname_from_uid(int uid, char *pfile) { static pstring nisname; safe_strcpy(nisname, "[uid=", sizeof(nisname)-1); slprintf(nisname, sizeof(nisname)-1, "%s%d", nisname, uid); safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1); safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1); return nisname; } /*************************************************************** make_nisname_from_name ****************************************************************/ static char *make_nisname_from_name(char *user_name, char *pfile) { static pstring nisname; safe_strcpy(nisname, "[name=", sizeof(nisname)-1); safe_strcat(nisname, user_name, sizeof(nisname) - strlen(nisname) - 1); safe_strcat(nisname, "],", sizeof(nisname)-strlen(nisname)-1); safe_strcat(nisname, pfile, sizeof(nisname)-strlen(nisname)-1); return nisname; } /************************************************************************* gets a NIS+ attribute *************************************************************************/ static void get_single_attribute(nis_object *new_obj, int col, char *val, int len) { int entry_len; if (new_obj == NULL || val == NULL) return; entry_len = ENTRY_LEN(new_obj, col); if (len > entry_len) { DEBUG(10,("get_single_attribute: entry length truncated\n")); len = entry_len; } safe_strcpy(val, len, ENTRY_VAL(new_obj, col)); } /*************************************************************** calls nis_list, returns results. ****************************************************************/ static nis_result *nisp_get_nis_list(char *nis_name) { nis_result *result; result = nis_list(nis_name, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP,NULL,NULL); alarm(0); CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL); if (gotalarm) { DEBUG(0,("nisp_get_nis_list: NIS+ lookup time out\n")); nis_freeresult(result); return NULL; } return result; } struct nisp_enum_info { nis_result *result; int enum_entry; }; /*************************************************************** Start to enumerate the nisplus passwd list. Returns a void pointer to ensure no modification outside this module. do not call this function directly. use passdb.c instead. ****************************************************************/ static void *startnisppwent(BOOL update) { static struct nisp_enum_info res; res.result = nisp_get_nis_list(lp_smb_passwd_file()); res.enum_entry = 0; return res.result != NULL ? &res : NULL; } /*************************************************************** End enumeration of the nisplus passwd list. ****************************************************************/ static void endnisppwent(void *vp) { } /************************************************************************* Routine to return the next entry in the nisplus passwd list. this function is a nice, messy combination of reading: - the nisplus passwd file - the unix password database - nisp.conf options (not done at present). do not call this function directly. use passdb.c instead. *************************************************************************/ static struct sam_passwd *getnisp21pwent(void *vp) { return NULL; } /************************************************************************* Return the current position in the nisplus passwd list as an SMB_BIG_UINT. This must be treated as an opaque token. do not call this function directly. use passdb.c instead. *************************************************************************/ static SMB_BIG_UINT getnisppwpos(void *vp) { return (SMB_BIG_UINT)0; } /************************************************************************* Set the current position in the nisplus passwd list from SMB_BIG_UINT. This must be treated as an opaque token. do not call this function directly. use passdb.c instead. *************************************************************************/ static BOOL setnisppwpos(void *vp, SMB_BIG_UINT tok) { return False; } /************************************************************************* sets a NIS+ attribute *************************************************************************/ static void set_single_attribute(nis_object *new_obj, int col, char *val, int len, int flags) { if (new_obj == NULL) return; ENTRY_VAL(new_obj, col) = val; ENTRY_LEN(new_obj, col) = len; if (flags != 0) { new_obj->EN_data.en_cols.en_cols_val[col].ec_flags = flags; } } /************************************************************************ Routine to add an entry to the nisplus passwd file. do not call this function directly. use passdb.c instead. *************************************************************************/ static BOOL add_nisp21pwd_entry(struct sam_passwd *newpwd) { char *pfile; char *nisname; nis_result *nis_user; nis_result *result = NULL, *tblresult = NULL, *addresult = NULL; nis_object new_obj, *obj; fstring uid; fstring user_rid; fstring smb_grpid; fstring group_rid; fstring acb; fstring smb_passwd; fstring smb_nt_passwd; fstring logon_t; fstring logoff_t; fstring kickoff_t; fstring pwdlset_t; fstring pwdlchg_t; fstring pwdmchg_t; bzero(logon_t , sizeof(logon_t )); bzero(logoff_t , sizeof(logoff_t )); bzero(kickoff_t, sizeof(kickoff_t)); bzero(pwdlset_t, sizeof(pwdlset_t)); bzero(pwdlchg_t, sizeof(pwdlchg_t)); bzero(pwdmchg_t, sizeof(pwdmchg_t)); pfile = lp_smb_passwd_file(); nisname = make_nisname_from_name(newpwd->smb_name, pfile); result = nisp_get_nis_list(nisname); if (result->status != NIS_SUCCESS && result->status != NIS_NOTFOUND) { DEBUG(3, ( "add_nisppwd_entry: nis_list failure: %s: %s\n", nisname, nis_sperrno(result->status))); nis_freeresult(nis_user); nis_freeresult(result); return False; } if (result->status == NIS_SUCCESS && NIS_RES_NUMOBJ(result) > 0) { DEBUG(3, ("add_nisppwd_entry: User already exists in NIS+ password db: %s\n", pfile)); nis_freeresult(result); nis_freeresult(nis_user); return False; } #if 0 /* User not found. */ if (!add_user) { DEBUG(3, ("add_nisppwd_entry: User not found in NIS+ password db: %s\n", pfile)); nis_freeresult(result); nis_freeresult(nis_user); return False; } #endif tblresult = nis_lookup(pfile, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP ); if (tblresult->status != NIS_SUCCESS) { nis_freeresult(result); nis_freeresult(nis_user); nis_freeresult(tblresult); DEBUG(3, ( "add_nisppwd_entry: nis_lookup failure: %s\n", nis_sperrno(tblresult->status))); return False; } new_obj.zo_name = NIS_RES_OBJECT(tblresult)->zo_name; new_obj.zo_domain = NIS_RES_OBJECT(tblresult)->zo_domain; new_obj.zo_owner = NIS_RES_OBJECT(tblresult)->zo_owner; new_obj.zo_group = NIS_RES_OBJECT(tblresult)->zo_group; new_obj.zo_access = NIS_RES_OBJECT(tblresult)->zo_access; new_obj.zo_ttl = NIS_RES_OBJECT(tblresult)->zo_ttl; new_obj.zo_data.zo_type = ENTRY_OBJ; new_obj.zo_data.objdata_u.en_data.en_type = NIS_RES_OBJECT(tblresult)->zo_data.objdata_u.ta_data.ta_type; new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_len = NIS_RES_OBJECT(tblresult)->zo_data.objdata_u.ta_data.ta_maxcol; new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_val = calloc(new_obj.zo_data.objdata_u.en_data.en_cols.en_cols_len, sizeof(entry_col)); pdb_sethexpwd(smb_passwd , newpwd->smb_passwd , newpwd->acct_ctrl); pdb_sethexpwd(smb_nt_passwd, newpwd->smb_nt_passwd, newpwd->acct_ctrl); pdb_set_logon_time (logon_t , sizeof(logon_t ), newpwd->logon_time ); pdb_set_logoff_time (logoff_t , sizeof(logoff_t ), newpwd->logoff_time ); pdb_set_kickoff_time (kickoff_t, sizeof(kickoff_t), newpwd->kickoff_time ); pdb_set_last_set_time (pwdlset_t, sizeof(pwdlset_t), newpwd->pass_last_set_time ); pdb_set_can_change_time (pwdlchg_t, sizeof(pwdlchg_t), newpwd->pass_can_change_time ); pdb_set_must_change_time(pwdmchg_t, sizeof(pwdmchg_t), newpwd->pass_must_change_time); slprintf(uid, sizeof(uid), "%u", newpwd->smb_userid); slprintf(user_rid, sizeof(user_rid), "0x%x", newpwd->user_rid); slprintf(smb_grpid, sizeof(smb_grpid), "%u", newpwd->smb_grpid); slprintf(group_rid, sizeof(group_rid), "0x%x", newpwd->group_rid); safe_strcpy(acb, pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN), sizeof(acb)); set_single_attribute(&new_obj, NPF_NAME , newpwd->smb_name , strlen(newpwd->smb_name) , 0); set_single_attribute(&new_obj, NPF_UID , uid , strlen(uid) , 0); set_single_attribute(&new_obj, NPF_USER_RID , user_rid , strlen(user_rid) , 0); set_single_attribute(&new_obj, NPF_SMB_GRPID , smb_grpid , strlen(smb_grpid) , 0); set_single_attribute(&new_obj, NPF_GROUP_RID , group_rid , strlen(group_rid) , 0); set_single_attribute(&new_obj, NPF_ACB , acb , strlen(acb) , 0); set_single_attribute(&new_obj, NPF_LMPWD , smb_passwd , strlen(smb_passwd) , EN_CRYPT); set_single_attribute(&new_obj, NPF_NTPWD , smb_nt_passwd , strlen(smb_nt_passwd) , EN_CRYPT); set_single_attribute(&new_obj, NPF_LOGON_T , logon_t , strlen(logon_t) , 0); set_single_attribute(&new_obj, NPF_LOGOFF_T , logoff_t , strlen(logoff_t) , 0); set_single_attribute(&new_obj, NPF_KICK_T , kickoff_t , strlen(kickoff_t) , 0); set_single_attribute(&new_obj, NPF_PWDLSET_T , pwdlset_t , strlen(pwdlset_t) , 0); set_single_attribute(&new_obj, NPF_PWDLCHG_T , pwdlchg_t , strlen(pwdlchg_t) , 0); set_single_attribute(&new_obj, NPF_PWDMCHG_T , pwdmchg_t , strlen(pwdmchg_t) , 0); set_single_attribute(&new_obj, NPF_FULL_NAME , newpwd->full_name , strlen(newpwd->full_name) , 0); set_single_attribute(&new_obj, NPF_HOME_DIR , newpwd->home_dir , strlen(newpwd->home_dir) , 0); set_single_attribute(&new_obj, NPF_DIR_DRIVE , newpwd->dir_drive , strlen(newpwd->dir_drive) , 0); set_single_attribute(&new_obj, NPF_LOGON_SCRIPT , newpwd->logon_script , strlen(newpwd->logon_script) , 0); set_single_attribute(&new_obj, NPF_PROFILE_PATH , newpwd->profile_path , strlen(newpwd->profile_path) , 0); set_single_attribute(&new_obj, NPF_ACCT_DESC , newpwd->acct_desc , strlen(newpwd->acct_desc) , 0); set_single_attribute(&new_obj, NPF_WORKSTATIONS , newpwd->workstations , strlen(newpwd->workstations) , 0); set_single_attribute(&new_obj, NPF_HOURS , newpwd->hours , newpwd->hours_len , 0); obj = &new_obj; addresult = nis_add_entry(pfile, obj, ADD_OVERWRITE | FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP); nis_freeresult(nis_user); if (tblresult) { nis_freeresult(tblresult); } if (addresult->status != NIS_SUCCESS) { DEBUG(3, ( "add_nisppwd_entry: NIS+ table update failed: %s\n", nisname, nis_sperrno(addresult->status))); nis_freeresult(addresult); nis_freeresult(result); return False; } nis_freeresult(addresult); nis_freeresult(result); return True; } /************************************************************************ Routine to search the nisplus passwd file for an entry matching the username. and then modify its password entry. We can't use the startnisppwent()/ getnisppwent()/endnisppwent() interfaces here as we depend on looking in the actual file to decide how much room we have to write data. override = False, normal override = True, override XXXXXXXX'd out password or NO PASS do not call this function directly. use passdb.c instead. ************************************************************************/ static BOOL mod_nisp21pwd_entry(struct sam_passwd* pwd, BOOL override) { return False; } /************************************************************************ makes a struct sam_passwd from a NIS+ result. ************************************************************************/ static BOOL make_sam_from_nisp(struct sam_passwd *pw_buf, nis_result *result) { int uidval; static pstring user_name; static unsigned char smbpwd[16]; static unsigned char smbntpwd[16]; nis_object *obj; uchar *p; if (pw_buf == NULL || result == NULL) return False; pdb_init_sam(pw_buf); if (result->status != NIS_SUCCESS) { DEBUG(0, ("make_smb_from_nisp: NIS+ lookup failure: %s\n", nis_sperrno(result->status))); return False; } /* User not found. */ if (NIS_RES_NUMOBJ(result) <= 0) { DEBUG(10, ("make_smb_from_nisp: user not found in NIS+\n")); return False; } if (NIS_RES_NUMOBJ(result) > 1) { DEBUG(10, ("make_smb_from_nisp: WARNING: Multiple entries for user in NIS+ table!\n")); } /* Grab the first hit. */ obj = &NIS_RES_OBJECT(result)[0]; /* Check the lanman password column. */ p = (uchar *)ENTRY_VAL(obj, NPF_LMPWD); if (strlen((char *)p) != 32 || !pdb_gethexpwd((char *)p, (char *)smbpwd)) { DEBUG(0, ("make_smb_from_nisp: malformed LM pwd entry.\n")); return False; } /* Check the NT password column. */ p = (uchar *)ENTRY_VAL(obj, NPF_NTPWD); if (strlen((char *)p) != 32 || !pdb_gethexpwd((char *)p, (char *)smbntpwd)) { DEBUG(0, ("make_smb_from_nisp: malformed NT pwd entry\n")); return False; } strncpy(user_name, ENTRY_VAL(obj, NPF_NAME), sizeof(user_name)); uidval = atoi(ENTRY_VAL(obj, NPF_UID)); pw_buf->smb_name = user_name; pw_buf->smb_userid = uidval; pw_buf->smb_passwd = smbpwd; pw_buf->smb_nt_passwd = smbntpwd; return True; } /************************************************************************* Routine to search the nisplus passwd file for an entry matching the username *************************************************************************/ static struct sam_passwd *getnisp21pwnam(char *name) { /* Static buffers we will return. */ static struct sam_passwd pw_buf; nis_result *result; pstring nisname; BOOL ret; if (!*lp_smb_passwd_file()) { DEBUG(0, ("No SMB password file set\n")); return NULL; } DEBUG(10, ("getnisppwnam: search by name: %s\n", name)); DEBUG(10, ("getnisppwnam: using NIS+ table %s\n", lp_smb_passwd_file())); slprintf(nisname, sizeof(nisname)-1, "[name=%s],%s", name, lp_smb_passwd_file()); /* Search the table. */ gotalarm = 0; CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig); alarm(5); result = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL); alarm(0); CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL); if (gotalarm) { DEBUG(0,("getnisppwnam: NIS+ lookup time out\n")); nis_freeresult(result); return NULL; } ret = make_sam_from_nisp(&pw_buf, result); nis_freeresult(result); return ret ? &pw_buf : NULL; } /************************************************************************* Routine to search the nisplus passwd file for an entry matching the username *************************************************************************/ static struct sam_passwd *getnisp21pwrid(uint32 rid) { /* Static buffers we will return. */ static struct sam_passwd pw_buf; nis_result *result; char *nisname; BOOL ret; if (!*lp_smb_passwd_file()) { DEBUG(0, ("No SMB password file set\n")); return NULL; } DEBUG(10, ("getnisp21pwrid: search by rid: %x\n", rid)); DEBUG(10, ("getnisp21pwrid: using NIS+ table %s\n", lp_smb_passwd_file())); nisname = make_nisname_from_user_rid(rid, lp_smb_passwd_file()); /* Search the table. */ gotalarm = 0; CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig); alarm(5); result = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL); alarm(0); CatchSignal(SIGALRM, SIGNAL_CAST SIG_DFL); if (gotalarm) { DEBUG(0,("getnisp21pwrid: NIS+ lookup time out\n")); nis_freeresult(result); return NULL; } ret = make_sam_from_nisp(&pw_buf, result); nis_freeresult(result); return ret ? &pw_buf : NULL; } /* * Derived functions for NIS+. */ static struct smb_passwd *getnisppwent(void *vp) { return pdb_sam_to_smb(getnisp21pwent(vp)); } static BOOL add_nisppwd_entry(struct smb_passwd *newpwd) { return add_nisp21pwd_entry(pdb_smb_to_sam(newpwd)); } static BOOL mod_nisppwd_entry(struct smb_passwd* pwd, BOOL override) { return mod_nisp21pwd_entry(pdb_smb_to_sam(pwd), override); } static struct smb_passwd *getnisppwnam(char *name) { return pdb_sam_to_smb(getnisp21pwnam(name)); } static struct sam_passwd *getnisp21pwuid(uid_t smb_userid) { return getnisp21pwrid(pdb_uid_to_user_rid(smb_userid)); } static struct smb_passwd *getnisppwuid(uid_t smb_userid) { return pdb_sam_to_smb(getnisp21pwuid(smb_userid)); } static struct sam_disp_info *getnispdispnam(char *name) { return pdb_sam_to_dispinfo(getnisp21pwnam(name)); } static struct sam_disp_info *getnispdisprid(uint32 rid) { return pdb_sam_to_dispinfo(getnisp21pwrid(rid)); } static struct sam_disp_info *getnispdispent(void *vp) { return pdb_sam_to_dispinfo(getnisp21pwent(vp)); } static struct passdb_ops nispasswd_ops = { startnisppwent, endnisppwent, getnisppwpos, setnisppwpos, getnisppwnam, getnisppwuid, getnisppwent, add_nisppwd_entry, mod_nisppwd_entry, getnisp21pwent, getnisp21pwnam, getnisp21pwuid, getnisp21pwrid, add_nisp21pwd_entry, mod_nisp21pwd_entry, getnispdispnam, getnispdisprid, getnispdispent }; struct passdb_ops *nisplus_initialize_password_db(void) { return &nispasswd_ops; } #else void nisplus_dummy_function(void) { } /* stop some compilers complaining */ #endif /* WITH_NISPLUS */ /* useful code i can't bring myself to delete */ #if 0 static void useful_code(void) { /* checks user in unix password database. don't want to do that, here. */ nisname = make_nisname_from_name(newpwd->smb_name, "passwd.org_dir"); nis_user = nis_list(nisname, FOLLOW_PATH | EXPAND_NAME | HARD_LOOKUP, NULL, NULL); if (nis_user->status != NIS_SUCCESS || NIS_RES_NUMOBJ(nis_user) <= 0) { DEBUG(3, ("add_nisppwd_entry: Unable to get NIS+ passwd entry for user: %s.\n", nis_sperrno(nis_user->status))); return False; } user_obj = NIS_RES_OBJECT(nis_user); make_nisname_from_name(ENTRY_VAL(user_obj,0), pfile); } #endif