diff options
Diffstat (limited to 'source3/passdb/pdb_tdb.c')
| -rw-r--r-- | source3/passdb/pdb_tdb.c | 509 |
1 files changed, 39 insertions, 470 deletions
diff --git a/source3/passdb/pdb_tdb.c b/source3/passdb/pdb_tdb.c index 7f8c2a26f7..1078a5bd26 100644 --- a/source3/passdb/pdb_tdb.c +++ b/source3/passdb/pdb_tdb.c @@ -1,11 +1,11 @@ /* * 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 + * 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 @@ -39,7 +39,6 @@ static int tdbsam_debug_level = DBGC_ALL; #define PDB_VERSION "20010830" #define PASSDB_FILE_NAME "passdb.tdb" -#define TDB_FORMAT_STRING "ddddddBBBBBBBBBBBBddBBwdwdBdd" #define USERPREFIX "USER_" #define RIDPREFIX "RID_" @@ -49,410 +48,8 @@ struct tdbsam_privates { /* 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; - uid_t uid = -1; - gid_t gid = -1; - - 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; - } - - 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. ****************************************************************/ @@ -488,6 +85,7 @@ static void close_tdb(struct tdbsam_privates *tdb_state) static void tdbsam_endsampwent(struct pdb_methods *my_methods) { struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; + SAFE_FREE(tdb_state->key.dptr); close_tdb(tdb_state); DEBUG(7, ("endtdbpwent: closed sam database.\n")); @@ -501,7 +99,7 @@ static NTSTATUS tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT * { NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; struct tdbsam_privates *tdb_state = (struct tdbsam_privates *)my_methods->private_data; - TDB_DATA data; + TDB_DATA data, old_key; const char *prefix = USERPREFIX; int prefixlen = strlen (prefix); @@ -512,10 +110,16 @@ static NTSTATUS tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT * } /* skip all non-USER entries (eg. RIDs) */ - while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen))) + while ((tdb_state->key.dsize != 0) && (strncmp(tdb_state->key.dptr, prefix, prefixlen))) { + + old_key = tdb_state->key; + /* increment to next in line */ tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key); + SAFE_FREE(old_key.dptr); + } + /* do we have an valid iteration pointer? */ if(tdb_state->passwd_tdb == NULL) { DEBUG(0,("pdb_get_sampwent: Bad TDB Context pointer.\n")); @@ -529,16 +133,20 @@ static NTSTATUS tdbsam_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT * } /* unpack the buffer */ - if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) { + 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 nt_status; } SAFE_FREE(data.dptr); + old_key = tdb_state->key; + /* increment to next in line */ tdb_state->key = tdb_nextkey(tdb_state->passwd_tdb, tdb_state->key); + SAFE_FREE(old_key.dptr); + return NT_STATUS_OK; } @@ -563,7 +171,7 @@ static NTSTATUS tdbsam_getsampwnam (struct pdb_methods *my_methods, SAM_ACCOUNT /* Data is stored in all lower-case */ fstrcpy(name, sname); - strlower(name); + strlower_m(name); /* set search key */ slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name); @@ -587,7 +195,7 @@ static NTSTATUS tdbsam_getsampwnam (struct pdb_methods *my_methods, SAM_ACCOUNT } /* unpack the buffer */ - if (!init_sam_from_buffer(tdb_state, user, data.dptr, data.dsize)) { + 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); tdb_close(pwd_tdb); @@ -670,7 +278,7 @@ static NTSTATUS tdbsam_delete_sam_account(struct pdb_methods *my_methods, SAM_AC fstring name; fstrcpy(name, pdb_get_username(sam_pass)); - strlower(name); + strlower_m(name); /* open the TDB */ if (!(pwd_tdb = tdb_open_log(tdb_state->tdbsam_location, 0, TDB_DEFAULT, O_RDWR, 0600))) { @@ -727,63 +335,39 @@ static BOOL tdb_update_sam(struct pdb_methods *my_methods, SAM_ACCOUNT* newpwd, 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)); + + if (!pwd_tdb) { + DEBUG(0, ("tdb_update_sam: Unable to open TDB passwd (%s)!\n", + tdb_state->tdbsam_location)); return False; } 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))); + 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; } - /* 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) && tdb_state->permit_non_unix_accounts) { - uint32 lowrid, highrid; - if (!idmap_get_free_rid_range(&lowrid, &highrid)) { - /* should never happen */ - DEBUG(0, ("tdbsam: something messed up, no high/low rids but nua enabled ?!\n")); - ret = False; - goto done; - } - user_rid = lowrid; - tdb_ret = tdb_change_uint32_atomic(pwd_tdb, "RID_COUNTER", &user_rid, RID_MULTIPLIER); - if (!tdb_ret) { - ret = False; - goto done; - } - if (user_rid > highrid) { - DEBUG(0, ("tdbsam: no NUA rids available, cannot add user %s!\n", pdb_get_username(newpwd))); - ret = False; - goto done; - } - if (!pdb_set_user_sid_from_rid(newpwd, user_rid, PDB_CHANGED)) { - DEBUG(0, ("tdbsam: not able to set new allocated user RID into sam account!\n")); - ret = False; - goto done; - } - } 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 ( !(user_rid = pdb_get_user_rid(newpwd)) ) { + DEBUG(0,("tdb_update_sam: SAM_ACCOUNT (%s) with no 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) { + if ((data.dsize=init_buffer_from_sam (&buf, newpwd, False)) == -1) { DEBUG(0,("tdb_update_sam: ERROR - Unable to copy SAM_ACCOUNT info BYTE buffer!\n")); ret = False; goto done; @@ -791,7 +375,7 @@ static BOOL tdb_update_sam(struct pdb_methods *my_methods, SAM_ACCOUNT* newpwd, data.dptr = buf; fstrcpy(name, pdb_get_username(newpwd)); - strlower(name); + strlower_m(name); DEBUG(5, ("Storing %saccount %s with RID %d\n", flag == TDB_INSERT ? "(new) " : "", name, user_rid)); @@ -912,11 +496,10 @@ static void free_private_data(void **vp) } -NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +static NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) { NTSTATUS nt_status; struct tdbsam_privates *tdb_state; - uid_t low_nua_uid, high_nua_uid; if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) { return nt_status; @@ -954,25 +537,11 @@ NTSTATUS pdb_init_tdbsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, con (*pdb_method)->free_private_data = free_private_data; - if (lp_idmap_uid(&low_nua_uid, &high_nua_uid)) { - DEBUG(0, ("idmap uid range defined, non unix accounts enabled\n")); - - tdb_state->permit_non_unix_accounts = True; - - 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); - - } else { - tdb_state->algorithmic_rids = True; - } - return NT_STATUS_OK; } -int pdb_tdbsam_init(void) +NTSTATUS pdb_tdbsam_init(void) { - smb_register_passdb(PASSDB_INTERFACE_VERSION, "tdbsam", pdb_init_tdbsam); - return True; + return smb_register_passdb(PASSDB_INTERFACE_VERSION, "tdbsam", pdb_init_tdbsam); } |