diff options
Diffstat (limited to 'source4/passdb/pdb_tdb.c')
| -rw-r--r-- | source4/passdb/pdb_tdb.c | 1007 |
1 files changed, 1007 insertions, 0 deletions
diff --git a/source4/passdb/pdb_tdb.c b/source4/passdb/pdb_tdb.c new file mode 100644 index 0000000000..c48c9567b1 --- /dev/null +++ b/source4/passdb/pdb_tdb.c @@ -0,0 +1,1007 @@ +/* + * Unix SMB/CIFS implementation. + * SMB parameters and setup + * Copyright (C) Andrew Tridgell 1992-1998 + * Copyright (C) Simo Sorce 2000-2002 + * Copyright (C) Gerald Carter 2000 + * Copyright (C) Jeremy Allison 2001 + * Copyright (C) Andrew Bartlett 2002 + * + * 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" + +#if 0 /* when made a module use this */ + +static int tdbsam_debug_level = DBGC_ALL; +#undef DBGC_CLASS +#define DBGC_CLASS tdbsam_debug_level + +#else + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_PASSDB + +#endif + +#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_" + +struct tdbsam_privates { + TDB_CONTEXT *passwd_tdb; + TDB_DATA key; + + /* retrive-once info */ + const char *tdbsam_location; + + BOOL permit_non_unix_accounts; + + BOOL algorithmic_rids; + + uint32 low_nua_rid; + uint32 high_nua_rid; +}; + +/********************************************************************** + Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len + *********************************************************************/ + +static BOOL init_sam_from_buffer (struct tdbsam_privates *tdb_state, + 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 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 lm_pw_len, nt_pw_len, hourslen; + BOOL ret = True; + struct passwd *pw; + uid_t uid = -1; + gid_t gid = -1; /* This is what standard sub advanced expects if no gid is known */ + + if(sampass == NULL || buf == NULL) { + DEBUG(0, ("init_sam_from_buffer: NULL parameters found!\n")); + return False; + } + + /* 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, + &lm_pw_len, &lm_pw_ptr, + &nt_pw_len, &nt_pw_ptr, + &acct_ctrl, + &unknown_3, + &logon_divs, + &hours_len, + &hourslen, &hours, + &unknown_5, + &unknown_6); + + if (len == -1) { + ret = False; + goto done; + } + + /* validate the account and fill in UNIX uid and gid. Standard + * getpwnam() is used instead of Get_Pwnam() as we do not need + * to try case permutations + */ + if (!username || !(pw = getpwnam_alloc(username))) { + if (!(tdb_state->permit_non_unix_accounts)) { + DEBUG(0,("tdbsam: getpwnam_alloc(%s) return NULL. User does not exist!\n", username)); + ret = False; + goto done; + } + } + + if (pw) { + uid = pw->pw_uid; + gid = pw->pw_gid; + + pdb_set_unix_homedir(sampass, pw->pw_dir, PDB_SET); + + passwd_free(&pw); + + pdb_set_uid(sampass, uid, PDB_SET); + pdb_set_gid(sampass, gid, PDB_SET); + } + + pdb_set_logon_time(sampass, logon_time, PDB_SET); + pdb_set_logoff_time(sampass, logoff_time, PDB_SET); + pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET); + pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET); + pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET); + pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET); + + pdb_set_username (sampass, username, PDB_SET); + pdb_set_domain (sampass, domain, PDB_SET); + pdb_set_nt_username (sampass, nt_username, PDB_SET); + pdb_set_fullname (sampass, fullname, PDB_SET); + + if (homedir) { + pdb_set_homedir(sampass, homedir, PDB_SET); + } + else { + pdb_set_homedir(sampass, + talloc_sub_specified(sampass->mem_ctx, + lp_logon_home(), + username, domain, + uid, gid), + PDB_DEFAULT); + } + + if (dir_drive) + pdb_set_dir_drive(sampass, dir_drive, PDB_SET); + else { + pdb_set_dir_drive(sampass, + talloc_sub_specified(sampass->mem_ctx, + lp_logon_drive(), + username, domain, + uid, gid), + PDB_DEFAULT); + } + + if (logon_script) + pdb_set_logon_script(sampass, logon_script, PDB_SET); + else { + pdb_set_logon_script(sampass, + talloc_sub_specified(sampass->mem_ctx, + lp_logon_script(), + username, domain, + uid, gid), + PDB_DEFAULT); + } + + if (profile_path) { + pdb_set_profile_path(sampass, profile_path, PDB_SET); + } else { + pdb_set_profile_path(sampass, + talloc_sub_specified(sampass->mem_ctx, + lp_logon_path(), + username, domain, + uid, gid), + PDB_DEFAULT); + } + + pdb_set_acct_desc (sampass, acct_desc, PDB_SET); + pdb_set_workstations (sampass, workstations, PDB_SET); + pdb_set_munged_dial (sampass, munged_dial, PDB_SET); + + if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) { + if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) { + ret = False; + goto done; + } + } + + if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) { + if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) { + ret = False; + goto done; + } + } + + pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET); + pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET); + pdb_set_unknown_3(sampass, unknown_3, PDB_SET); + pdb_set_hours_len(sampass, hours_len, PDB_SET); + pdb_set_unknown_5(sampass, unknown_5, PDB_SET); + pdb_set_unknown_6(sampass, unknown_6, PDB_SET); + pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET); + pdb_set_logon_divs(sampass, logon_divs, PDB_SET); + pdb_set_hours(sampass, hours, PDB_SET); + +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 (struct tdbsam_privates *tdb_state, + 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; + + uint32 user_rid, group_rid; + + 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) { + DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n")); + 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); + + user_rid = pdb_get_user_rid(sampass); + group_rid = pdb_get_group_rid(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; + + fullname = pdb_get_fullname(sampass); + if (fullname) fullname_len = strlen(fullname) +1; + else fullname_len = 0; + + /* + * Only updates fields which have been set (not defaults from smb.conf) + */ + + if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) + dir_drive = pdb_get_dir_drive(sampass); + else dir_drive = NULL; + if (dir_drive) dir_drive_len = strlen(dir_drive) +1; + else dir_drive_len = 0; + + if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) homedir = pdb_get_homedir(sampass); + else homedir = NULL; + if (homedir) homedir_len = strlen(homedir) +1; + else homedir_len = 0; + + if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) logon_script = pdb_get_logon_script(sampass); + else logon_script = NULL; + if (logon_script) logon_script_len = strlen(logon_script) +1; + else logon_script_len = 0; + + if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) profile_path = pdb_get_profile_path(sampass); + else profile_path = NULL; + if (profile_path) profile_path_len = strlen(profile_path) +1; + else profile_path_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; + + 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; + + 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; + + /* 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, + user_rid, + group_rid, + lm_pw_len, lm_pw, + nt_pw_len, nt_pw, + pdb_get_acct_ctrl(sampass), + pdb_get_unknown_3(sampass), + pdb_get_logon_divs(sampass), + pdb_get_hours_len(sampass), + MAX_HOURS_LEN, pdb_get_hours(sampass), + pdb_get_unknown_5(sampass), + pdb_get_unknown_6(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, + user_rid, + group_rid, + lm_pw_len, lm_pw, + nt_pw_len, nt_pw, + pdb_get_acct_ctrl(sampass), + pdb_get_unknown_3(sampass), + pdb_get_logon_divs(sampass), + pdb_get_hours_len(sampass), + MAX_HOURS_LEN, pdb_get_hours(sampass), + pdb_get_unknown_5(sampass), + pdb_get_unknown_6(sampass)); + + + /* check to make sure we got it correct */ + if (buflen != len) { + DEBUG(0, ("init_buffer_from_sam: somthing odd is going on here: bufflen (%d) != len (%d) in tdb_pack operations!\n", + buflen, len)); + /* error */ + SAFE_FREE (*buf); + return (-1); + } + + return (buflen); +} + +/*************************************************************** + Open the TDB passwd database for SAM account enumeration. +****************************************************************/ + +static NTSTATUS tdbsam_setsampwent(struct pdb_methods *my_methods, BOOL update) +{ + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + + /* Open tdb passwd */ + if (!(tdb_state->passwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, update?(O_RDWR|O_CREAT):O_RDONLY, 0600))) + { + DEBUG(0, ("Unable to open/create TDB passwd\n")); + return NT_STATUS_UNSUCCESSFUL; + } + + tdb_state->key = tdb_firstkey(tdb_state->passwd_tdb); + + return NT_STATUS_OK; +} + +static void close_tdb(struct tdbsam_privates *tdb_state) +{ + if (tdb_state->passwd_tdb) { + tdb_close(tdb_state->passwd_tdb); + tdb_state->passwd_tdb = NULL; + } +} + +/*************************************************************** + End enumeration of the TDB passwd list. +****************************************************************/ + +static void tdbsam_endsampwent(struct pdb_methods *my_methods) +{ + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + close_tdb(tdb_state); + + DEBUG(7, ("endtdbpwent: closed sam database.\n")); +} + +/***************************************************************** + Get one SAM_ACCOUNT from the TDB (next in line) +*****************************************************************/ + +static NTSTATUS tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT *user) +{ + NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + TDB_DATA data; + const char *prefix = USERPREFIX; + int prefixlen = strlen (prefix); + + + if (user==NULL) { + DEBUG(0,("pdb_get_sampwent: SAM_ACCOUNT is NULL.\n")); + return nt_status; + } + + /* skip all non-USER entries (eg. RIDs) */ + while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen))) + /* increment to next in line */ + tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key); + + /* do we have an valid iteration pointer? */ + if(tdb_state->passwd_tdb == NULL) { + DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n")); + return nt_status; + } + + data = tdb_fetch(tdb_state->passwd_tdb, tdb_state->key); + if (!data.dptr) { + DEBUG(5,("pdb_getsampwent: database entry not found.\n")); + return nt_status; + } + + /* unpack the buffer */ + if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) { + DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n")); + SAFE_FREE(data.dptr); + return nt_status; + } + SAFE_FREE(data.dptr); + + /* increment to next in line */ + tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key); + + return NT_STATUS_OK; +} + +/****************************************************************** + Lookup a name in the SAM TDB +******************************************************************/ + +static NTSTATUS tdbsam_getsampwnam (struct pdb_methods *my_methods, SAM_ACCOUNT *user, const char *sname) +{ + NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + TDB_CONTEXT *pwd_tdb; + TDB_DATA data, key; + fstring keystr; + fstring name; + + if (user==NULL) { + DEBUG(0,("pdb_getsampwnam: SAM_ACCOUNT is NULL.\n")); + return nt_status; + } + + /* Data is stored in all lower-case */ + unix_strlower(sname, -1, name, sizeof(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(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) { + DEBUG(0, ("pdb_getsampwnam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location)); + return nt_status; + } + + /* 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))); + DEBUGADD(5, (" Key: %s\n", keystr)); + tdb_close(pwd_tdb); + return nt_status; + } + + /* unpack the buffer */ + if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) { + DEBUG(0,("pdb_getsampwent: Bad SAM_ACCOUNT entry returned from TDB!\n")); + SAFE_FREE(data.dptr); + tdb_close(pwd_tdb); + return nt_status; + } + SAFE_FREE(data.dptr); + + /* no further use for database, close it now */ + tdb_close(pwd_tdb); + + return NT_STATUS_OK; +} + +/*************************************************************************** + Search by rid + **************************************************************************/ + +static NTSTATUS tdbsam_getsampwrid (struct pdb_methods *my_methods, SAM_ACCOUNT *user, uint32 rid) +{ + NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + TDB_CONTEXT *pwd_tdb; + TDB_DATA data, key; + fstring keystr; + fstring name; + + if (user==NULL) { + DEBUG(0,("pdb_getsampwrid: SAM_ACCOUNT is NULL.\n")); + return nt_status; + } + + /* 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(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDONLY, 0600))) { + DEBUG(0, ("pdb_getsampwrid: Unable to open TDB rid database!\n")); + return nt_status; + } + + /* get the record */ + data = tdb_fetch (pwd_tdb, key); + if (!data.dptr) { + DEBUG(5,("pdb_getsampwrid (TDB): error looking up RID %d by key %s.\n", rid, keystr)); + DEBUGADD(5, (" Error: %s\n", tdb_errorstr(pwd_tdb))); + tdb_close (pwd_tdb); + return nt_status; + } + + fstrcpy (name, data.dptr); + SAFE_FREE(data.dptr); + + tdb_close (pwd_tdb); + + return tdbsam_getsampwnam (my_methods, user, name); +} + +static NTSTATUS tdbsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid) +{ + uint32 rid; + if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) + return NT_STATUS_UNSUCCESSFUL; + return tdbsam_getsampwrid(my_methods, user, rid); +} + +/*************************************************************************** + Delete a SAM_ACCOUNT +****************************************************************************/ + +static NTSTATUS tdbsam_delete_sam_account(struct pdb_methods *my_methods, SAM_ACCOUNT *sam_pass) +{ + NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + TDB_CONTEXT *pwd_tdb; + TDB_DATA key; + fstring keystr; + uint32 rid; + fstring name; + + unix_strlower(pdb_get_username(sam_pass), -1, name, sizeof(name)); + + /* open the TDB */ + if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) { + DEBUG(0, ("Unable to open TDB passwd!")); + return nt_status; + } + + /* set the search key */ + slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); + key.dptr = keystr; + key.dsize = strlen (keystr) + 1; + + rid = pdb_get_user_rid(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 nt_status; + } + + /* 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 nt_status; + } + + tdb_close(pwd_tdb); + + return NT_STATUS_OK; +} + +/*************************************************************************** + Update the TDB SAM +****************************************************************************/ + +static BOOL tdb_update_sam(struct pdb_methods *my_methods, SAM_ACCOUNT* newpwd, int flag) +{ + struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + TDB_CONTEXT *pwd_tdb = NULL; + TDB_DATA key, data; + uint8 *buf = NULL; + fstring keystr; + fstring name; + BOOL ret = True; + uint32 user_rid; + BOOL tdb_ret; + + /* invalidate the existing TDB iterator if it is open */ + if (tdb_state->passwd_tdb) { + tdb_close(tdb_state->passwd_tdb); + tdb_state->passwd_tdb = NULL; + } + + /* open the account TDB passwd*/ + pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0600); + if (!pwd_tdb) + { + DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", tdb_state->tdbsam_location)); + return False; + } + + /* if flag == TDB_INSERT then make up a new RID else throw an error. */ + if (!(user_rid = pdb_get_user_rid(newpwd))) { + if (flag & TDB_INSERT) { + if (IS_SAM_UNIX_USER(newpwd)) { + if (tdb_state->algorithmic_rids) { + user_rid = fallback_pdb_uid_to_user_rid(pdb_get_uid(newpwd)); + } else { + user_rid = BASE_RID; + tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "RID_COUNTER", &user_rid, RID_MULTIPLIER); + if (!tdb_ret) { + ret = False; + goto done; + } + } + pdb_set_user_sid_from_rid(newpwd, user_rid, PDB_CHANGED); + } else { + user_rid = tdb_state->low_nua_rid; + tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "NUA_RID_COUNTER", &user_rid, RID_MULTIPLIER); + if (!tdb_ret) { + ret = False; + goto done; + } + if (user_rid > tdb_state->high_nua_rid) { + DEBUG(0, ("tdbsam: no NUA rids available, cannot add user %s!\n", pdb_get_username(newpwd))); + ret = False; + goto done; + } + pdb_set_user_sid_from_rid(newpwd, user_rid, PDB_CHANGED); + } + } else { + DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a RID\n",pdb_get_username(newpwd))); + ret = False; + goto done; + } + } + + if (!pdb_get_group_rid(newpwd)) { + if (flag & TDB_INSERT) { + if (!tdb_state->permit_non_unix_accounts) { + DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd))); + ret = False; + goto done; + } else { + /* This seems like a good default choice for non-unix users */ + pdb_set_group_sid_from_rid(newpwd, DOMAIN_GROUP_RID_USERS, PDB_DEFAULT); + } + } else { + DEBUG (0,("tdb_update_sam: Failing to store a SAM_ACCOUNT for [%s] without a primary group RID\n",pdb_get_username(newpwd))); + ret = False; + goto done; + } + } + + /* copy the SAM_ACCOUNT struct into a BYTE buffer for storage */ + if ((data.dsize=init_buffer_from_sam (tdb_state, &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)); + + DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid)); + + /* setup the USER index key */ + slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); + key.dptr = keystr; + key.dsize = strlen (keystr) + 1; + + /* add the account */ + if (tdb_store(pwd_tdb, key, data, flag) != TDB_SUCCESS) { + DEBUG(0, ("Unable to modify passwd TDB!")); + DEBUGADD(0, (" Error: %s", tdb_errorstr(pwd_tdb))); + DEBUGADD(0, (" occured while storing the main record (%s)\n", keystr)); + 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, user_rid); + 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))); + DEBUGADD(0, (" occured while storing the RID index (%s)\n", keystr)); + ret = False; + goto done; + } + +done: + /* cleanup */ + tdb_close (pwd_tdb); + SAFE_FREE(buf); + + return (ret); +} + +/*************************************************************************** + Modifies an existing SAM_ACCOUNT +****************************************************************************/ + +static NTSTATUS tdbsam_update_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd) +{ + if (tdb_update_sam(my_methods, newpwd, TDB_MODIFY)) + return NT_STATUS_OK; + else + return NT_STATUS_UNSUCCESSFUL; +} + +/*************************************************************************** + Adds an existing SAM_ACCOUNT +****************************************************************************/ + +static NTSTATUS tdbsam_add_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *newpwd) +{ + if (tdb_update_sam(my_methods, newpwd, TDB_INSERT)) + return NT_STATUS_OK; + else + return NT_STATUS_UNSUCCESSFUL; +} + +static void free_private_data(void **vp) +{ + struct tdbsam_privates **tdb_state = (struct tdbsam_privates **)vp; + close_tdb(*tdb_state); + *tdb_state = NULL; + + /* No need to free any further, as it is talloc()ed */ +} + + +NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +{ + NTSTATUS nt_status; + struct tdbsam_privates *tdb_state; + +#if 0 /* when made a module use this */ + tdbsam_debug_level = debug_add_class("tdbsam"); + if(tdbsam_debug_level == -1) { + tdbsam_debug_level = DBGC_ALL; + DEBUG(0, ("tdbsam: Couldn't register custom debugging class!\n")); + } +#endif + + if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) { + return nt_status; + } + + (*pdb_method)->name = "tdbsam"; + + (*pdb_method)->setsampwent = tdbsam_setsampwent; + (*pdb_method)->endsampwent = tdbsam_endsampwent; + (*pdb_method)->getsampwent = tdbsam_getsampwent; + (*pdb_method)->getsampwnam = tdbsam_getsampwnam; + (*pdb_method)->getsampwsid = tdbsam_getsampwsid; + (*pdb_method)->add_sam_account = tdbsam_add_sam_account; + (*pdb_method)->update_sam_account = tdbsam_update_sam_account; + (*pdb_method)->delete_sam_account = tdbsam_delete_sam_account; + + tdb_state = talloc_zero(pdb_context->mem_ctx, sizeof(struct tdbsam_privates)); + + if (!tdb_state) { + DEBUG(0, ("talloc() failed for tdbsam private_data!\n")); + return NT_STATUS_NO_MEMORY; + } + + if (location) { + tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, location); + } else { + pstring tdbfile; + get_private_directory(tdbfile); + pstrcat(tdbfile, "/"); + pstrcat(tdbfile, PASSDB_FILE_NAME); + tdb_state->tdbsam_location = talloc_strdup(pdb_context->mem_ctx, tdbfile); + } + + tdb_state->algorithmic_rids = True; + + (*pdb_method)->private_data = tdb_state; + + (*pdb_method)->free_private_data = free_private_data; + + return NT_STATUS_OK; +} + +NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +{ + NTSTATUS nt_status; + struct tdbsam_privates *tdb_state; + uint32 low_nua_uid, high_nua_uid; + + if (!NT_STATUS_IS_OK(nt_status = pdb_init_tdbsam(pdb_context, pdb_method, location))) { + return nt_status; + } + + (*pdb_method)->name = "tdbsam_nua"; + + tdb_state = (*pdb_method)->private_data; + + tdb_state->permit_non_unix_accounts = True; + + if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) { + DEBUG(0, ("cannot use tdbsam_nua without 'non unix account range' in smb.conf!\n")); + return NT_STATUS_UNSUCCESSFUL; + } + + tdb_state->low_nua_rid=fallback_pdb_uid_to_user_rid(low_nua_uid); + + tdb_state->high_nua_rid=fallback_pdb_uid_to_user_rid(high_nua_uid); + + return NT_STATUS_OK; +} + + +#else + +NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +{ + DEBUG(0, ("tdbsam not compiled in!\n")); + return NT_STATUS_UNSUCCESSFUL; +} + +NTSTATUS pdb_init_tdbsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +{ + DEBUG(0, ("tdbsam_nua not compiled in!\n")); + return NT_STATUS_UNSUCCESSFUL; +} + + +#endif |