diff options
Diffstat (limited to 'source/passdb/secrets.c')
| -rw-r--r-- | source/passdb/secrets.c | 501 |
1 files changed, 55 insertions, 446 deletions
diff --git a/source/passdb/secrets.c b/source/passdb/secrets.c index 4b2c76d8b0e..2700c2a0eb2 100644 --- a/source/passdb/secrets.c +++ b/source/passdb/secrets.c @@ -1,8 +1,8 @@ /* - Unix SMB/CIFS implementation. - Copyright (C) Andrew Tridgell 1992-2001 - Copyright (C) Andrew Bartlett 2002 - Copyright (C) Rafal Szczesniak 2002 + Unix SMB/Netbios implementation. + Version 3.0. + Samba registry functions + Copyright (C) Andrew Tridgell 1992-1998 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 @@ -24,9 +24,6 @@ #include "includes.h" -#undef DBGC_CLASS -#define DBGC_CLASS DBGC_PASSDB - static TDB_CONTEXT *tdb; /* open up the secrets database */ @@ -37,7 +34,7 @@ BOOL secrets_init(void) if (tdb) return True; - pstrcpy(fname, lp_private_dir()); + get_private_directory(fname); pstrcat(fname,"/secrets.tdb"); tdb = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600); @@ -52,12 +49,11 @@ BOOL secrets_init(void) /* read a entry from the secrets database - the caller must free the result if size is non-null then the size of the entry is put in there */ -void *secrets_fetch(const char *key, size_t *size) +void *secrets_fetch(char *key, size_t *size) { TDB_DATA kbuf, dbuf; - secrets_init(); if (!tdb) - return NULL; + return False; kbuf.dptr = key; kbuf.dsize = strlen(key); dbuf = tdb_fetch(tdb, kbuf); @@ -68,10 +64,9 @@ void *secrets_fetch(const char *key, size_t *size) /* store a secrets entry */ -BOOL secrets_store(const char *key, const void *data, size_t size) +BOOL secrets_store(char *key, void *data, size_t size) { TDB_DATA kbuf, dbuf; - secrets_init(); if (!tdb) return False; kbuf.dptr = key; @@ -84,10 +79,9 @@ BOOL secrets_store(const char *key, const void *data, size_t size) /* delete a secets database entry */ -BOOL secrets_delete(const char *key) +BOOL secrets_delete(char *key) { TDB_DATA kbuf; - secrets_init(); if (!tdb) return False; kbuf.dptr = key; @@ -95,7 +89,7 @@ BOOL secrets_delete(const char *key) return tdb_delete(tdb, kbuf) == 0; } -BOOL secrets_store_domain_sid(const char *domain, const DOM_SID *sid) +BOOL secrets_store_domain_sid(char *domain, DOM_SID *sid) { fstring key; @@ -104,7 +98,7 @@ BOOL secrets_store_domain_sid(const char *domain, const DOM_SID *sid) return secrets_store(key, sid, sizeof(DOM_SID)); } -BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) +BOOL secrets_fetch_domain_sid(char *domain, DOM_SID *sid) { DOM_SID *dyn_sid; fstring key; @@ -112,6 +106,7 @@ BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_SID, domain); strupper(key); + dos_to_unix(key); /* Convert key to unix-codepage */ dyn_sid = (DOM_SID *)secrets_fetch(key, &size); if (dyn_sid == NULL) @@ -128,130 +123,38 @@ BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) return True; } -BOOL secrets_store_domain_guid(const char *domain, GUID *guid) -{ - fstring key; - - slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_GUID, domain); - strupper(key); - return secrets_store(key, guid, sizeof(GUID)); -} - -BOOL secrets_fetch_domain_guid(const char *domain, GUID *guid) -{ - GUID *dyn_guid; - fstring key; - size_t size; - GUID new_guid; - - slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_GUID, domain); - strupper(key); - dyn_guid = (GUID *)secrets_fetch(key, &size); - - DEBUG(6,("key is %s, size is %d\n", key, (int)size)); - - if ((NULL == dyn_guid) && (ROLE_DOMAIN_PDC == lp_server_role())) { - uuid_generate_random(&new_guid); - if (!secrets_store_domain_guid(domain, &new_guid)) - return False; - dyn_guid = (GUID *)secrets_fetch(key, &size); - if (dyn_guid == NULL) - return False; - } - - if (size != sizeof(GUID)) - { - SAFE_FREE(dyn_guid); - return False; - } - - *guid = *dyn_guid; - SAFE_FREE(dyn_guid); - return True; -} +/************************************************************************ +form a key for fetching a domain trust password +************************************************************************/ -/** - * Form a key for fetching the machine trust account password - * - * @param domain domain name - * - * @return stored password's key - **/ -const char *trust_keystr(const char *domain) +char *trust_keystr(char *domain) { static fstring keystr; + fstring dos_domain; - slprintf(keystr,sizeof(keystr)-1,"%s/%s", - SECRETS_MACHINE_ACCT_PASS, domain); - strupper(keystr); - - return keystr; -} + fstrcpy(dos_domain, domain); + unix_to_dos(dos_domain); -/** - * Form a key for fetching a trusted domain password - * - * @param domain trusted domain name - * - * @return stored password's key - **/ -char *trustdom_keystr(const char *domain) -{ - static char* keystr; + slprintf(keystr,sizeof(keystr)-1,"%s/%s", + SECRETS_MACHINE_ACCT_PASS, dos_domain); - asprintf(&keystr, "%s/%s", SECRETS_DOMTRUST_ACCT_PASS, domain); strupper(keystr); - return keystr; } /************************************************************************ - Lock the trust password entry. -************************************************************************/ - -BOOL secrets_lock_trust_account_password(char *domain, BOOL dolock) -{ - if (!tdb) - return False; - - if (dolock) - return (tdb_lock_bystring(tdb, trust_keystr(domain)) == 0); - else - tdb_unlock_bystring(tdb, trust_keystr(domain)); - return True; -} - -/************************************************************************ Routine to get the trust account password for a domain. - The user of this function must have locked the trust password file using - the above call. + The user of this function must have locked the trust password file. ************************************************************************/ - -BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], +BOOL secrets_fetch_trust_account_password(char *domain, uint8 ret_pwd[16], time_t *pass_last_set_time) { struct machine_acct_pass *pass; - char *plaintext; size_t size; - plaintext = secrets_fetch_machine_password(); - if (plaintext) { - /* we have an ADS password - use that */ - DEBUG(4,("Using ADS machine password\n")); - E_md4hash(plaintext, ret_pwd); - SAFE_FREE(plaintext); - return True; - } - - if (!(pass = secrets_fetch(trust_keystr(domain), &size))) { - DEBUG(5, ("secrets_fetch failed!\n")); + if (!(pass = secrets_fetch(trust_keystr(domain), &size)) || + size != sizeof(*pass)) return False; - } - - if (size != sizeof(*pass)) { - DEBUG(0, ("secrets were of incorrect size!\n")); - return False; - } if (pass_last_set_time) *pass_last_set_time = pass->mod_time; memcpy(ret_pwd, pass->hash, 16); @@ -259,45 +162,6 @@ BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], return True; } -/************************************************************************ - Routine to get account password to trusted domain -************************************************************************/ - -BOOL secrets_fetch_trusted_domain_password(char *domain, char** pwd, - DOM_SID *sid, time_t *pass_last_set_time) -{ - struct trusted_dom_pass *pass; - size_t size; - - /* fetching trusted domain password structure */ - if (!(pass = secrets_fetch(trustdom_keystr(domain), &size))) { - DEBUG(5, ("secrets_fetch failed!\n")); - return False; - } - - if (size != sizeof(*pass)) { - DEBUG(0, ("secrets were of incorrect size!\n")); - return False; - } - - /* the trust's password */ - if (pwd) { - *pwd = strdup(pass->pass); - if (!*pwd) { - return False; - } - } - - /* last change time */ - if (pass_last_set_time) *pass_last_set_time = pass->mod_time; - - /* domain sid */ - memcpy(&sid, &(pass->domain_sid), sizeof(sid)); - - SAFE_FREE(pass); - - return True; -} /************************************************************************ Routine to set the trust account password for a domain. @@ -312,94 +176,15 @@ BOOL secrets_store_trust_account_password(char *domain, uint8 new_pwd[16]) return secrets_store(trust_keystr(domain), (void *)&pass, sizeof(pass)); } -/** - * Routine to set the password for trusted domain - * - * @param domain remote domain name - * @param pwd plain text password of trust relationship - * @param sid remote domain sid - * - * @return true if succeeded - **/ - -BOOL secrets_store_trusted_domain_password(char* domain, smb_ucs2_t *uni_dom_name, - size_t uni_name_len, char* pwd, - DOM_SID sid) -{ - struct trusted_dom_pass pass; - ZERO_STRUCT(pass); - - /* unicode domain name and its length */ - if (!uni_dom_name) - return False; - - strncpy_w(pass.uni_name, uni_dom_name, sizeof(pass.uni_name) - 1); - pass.uni_name_len = uni_name_len; - - /* last change time */ - pass.mod_time = time(NULL); - - /* password of the trust */ - pass.pass_len = strlen(pwd); - fstrcpy(pass.pass, pwd); - - /* domain sid */ - memcpy(&(pass.domain_sid), &sid, sizeof(sid)); - - return secrets_store(trustdom_keystr(domain), (void *)&pass, sizeof(pass)); -} - /************************************************************************ - Routine to set the plaintext machine account password for a realm -the password is assumed to be a null terminated ascii string + Routine to delete the trust account password file for a domain. ************************************************************************/ -BOOL secrets_store_machine_password(char *pass) -{ - char *key; - BOOL ret; - asprintf(&key, "%s/%s", SECRETS_MACHINE_PASSWORD, lp_workgroup()); - strupper(key); - ret = secrets_store(key, pass, strlen(pass)+1); - free(key); - return ret; -} - -/************************************************************************ - Routine to fetch the plaintext machine account password for a realm -the password is assumed to be a null terminated ascii string -************************************************************************/ -char *secrets_fetch_machine_password(void) -{ - char *key; - char *ret; - asprintf(&key, "%s/%s", SECRETS_MACHINE_PASSWORD, lp_workgroup()); - strupper(key); - ret = (char *)secrets_fetch(key, NULL); - free(key); - return ret; -} - - - -/************************************************************************ - Routine to delete the machine trust account password file for a domain. -************************************************************************/ - -BOOL trust_password_delete(const char *domain) +BOOL trust_password_delete(char *domain) { return secrets_delete(trust_keystr(domain)); } -/************************************************************************ - Routine to delete the password for trusted domain -************************************************************************/ -BOOL trusted_domain_password_delete(const char *domain) -{ - return secrets_delete(trustdom_keystr(domain)); -} - - /******************************************************************* Reset the 'done' variables so after a client process is created from a fork call these calls will be re-done. This should be @@ -410,15 +195,13 @@ void reset_globals_after_fork(void) { unsigned char dummy; - secrets_init(); - /* * Increment the global seed value to ensure every smbd starts * with a new random seed. */ if (tdb) { - uint32 initial_val = sys_getpid(); + int32 initial_val = sys_getpid(); tdb_change_int32_atomic(tdb, "INFO/random_seed", (int *)&initial_val, 1); set_rand_reseed_data((unsigned char *)&initial_val, sizeof(initial_val)); } @@ -431,217 +214,43 @@ void reset_globals_after_fork(void) generate_random_buffer( &dummy, 1, True); } -BOOL secrets_store_ldap_pw(const char* dn, char* pw) +BOOL secrets_store_ldap_pw(char* dn, char* pw) { - char *key = NULL; - BOOL ret; + fstring key; + char *p; - if (asprintf(&key, "%s/%s", SECRETS_LDAP_BIND_PW, dn) < 0) { - DEBUG(0, ("secrets_store_ldap_pw: asprintf failed!\n")); - return False; - } - - ret = secrets_store(key, pw, strlen(pw)+1); + pstrcpy(key, dn); + for (p=key; *p; p++) + if (*p == ',') *p = '/'; - SAFE_FREE(key); - return ret; + return secrets_store(key, pw, strlen(pw)); } - -/** - * Get trusted domains info from secrets.tdb. - * - * The linked list is allocated on the supplied talloc context, caller gets to destroy - * when done. - * - * @param ctx Allocation context - * @param enum_ctx Starting index, eg. we can start fetching at third - * or sixth trusted domain entry. Zero is the first index. - * Value it is set to is the enum context for the next enumeration. - * @param num_domains Number of domain entries to fetch at one call - * @param domains Pointer to array of trusted domain structs to be filled up - * - * @return nt status code of rpc response - **/ - -NTSTATUS secrets_get_trusted_domains(TALLOC_CTX* ctx, int* enum_ctx, int max_num_domains, int *num_domains, TRUSTDOM ***domains) +BOOL fetch_ldap_pw(char *dn, char* pw, int len) { - TDB_LIST_NODE *keys, *k; - TRUSTDOM *dom = NULL; - char *pattern; - int start_idx; - uint32 idx = 0; + fstring key; + char *p; + void *data = NULL; size_t size; - fstring dom_name; - struct trusted_dom_pass *pass; - NTSTATUS status; - - if (!secrets_init()) return NT_STATUS_ACCESS_DENIED; - - *num_domains = 0; - start_idx = *enum_ctx; - - /* generate searching pattern */ - if (!(pattern = talloc_asprintf(ctx, "%s/*", SECRETS_DOMTRUST_ACCT_PASS))) { - DEBUG(0, ("secrets_get_trusted_domains: talloc_asprintf() failed!\n")); - return NT_STATUS_NO_MEMORY; - } - - DEBUG(5, ("secrets_get_trusted_domains: looking for %d domains, starting at index %d\n", - max_num_domains, *enum_ctx)); - - *domains = talloc_zero(ctx, sizeof(**domains)*max_num_domains); - - /* fetching trusted domains' data and collecting them in a list */ - keys = tdb_search_keys(tdb, pattern); - - /* - * if there's no keys returned ie. no trusted domain, - * return "no more entries" code - */ - status = NT_STATUS_NO_MORE_ENTRIES; - - /* searching for keys in sectrets db -- way to go ... */ - for (k = keys; k; k = k->next) { - char *secrets_key; - - /* important: ensure null-termination of the key string */ - secrets_key = strndup(k->node_key.dptr, k->node_key.dsize); - if (!secrets_key) { - DEBUG(0, ("strndup failed!\n")); - return NT_STATUS_NO_MEMORY; - } - - pass = secrets_fetch(secrets_key, &size); - - if (size != sizeof(*pass)) { - DEBUG(2, ("Secrets record %s is invalid!\n", secrets_key)); - SAFE_FREE(pass); - continue; - } - - pull_ucs2_fstring(dom_name, pass->uni_name); - DEBUG(18, ("Fetched secret record num %d.\nDomain name: %s, SID: %s\n", - idx, dom_name, sid_string_static(&pass->domain_sid))); - - SAFE_FREE(secrets_key); - - if (idx >= start_idx && idx < start_idx + max_num_domains) { - dom = talloc_zero(ctx, sizeof(*dom)); - if (!dom) { - /* free returned tdb record */ - SAFE_FREE(pass); - - return NT_STATUS_NO_MEMORY; - } - - /* copy domain sid */ - SMB_ASSERT(sizeof(dom->sid) == sizeof(pass->domain_sid)); - memcpy(&(dom->sid), &(pass->domain_sid), sizeof(dom->sid)); - - /* copy unicode domain name */ - dom->name = talloc_strdup_w(ctx, pass->uni_name); - - (*domains)[idx - start_idx] = dom; - - DEBUG(18, ("Secret record is in required range.\n \ - start_idx = %d, max_num_domains = %d. Added to returned array.\n", - start_idx, max_num_domains)); - - *enum_ctx = idx + 1; - (*num_domains)++; - - /* set proper status code to return */ - if (k->next) { - /* there are yet some entries to enumerate */ - status = STATUS_MORE_ENTRIES; - } else { - /* this is the last entry in the whole enumeration */ - status = NT_STATUS_OK; - } - } else { - DEBUG(18, ("Secret is outside the required range.\n \ - start_idx = %d, max_num_domains = %d. Not added to returned array\n", - start_idx, max_num_domains)); - } - - idx++; - - /* free returned tdb record */ - SAFE_FREE(pass); - } - DEBUG(5, ("secrets_get_trusted_domains: got %d domains\n", *num_domains)); - - /* free the results of searching the keys */ - tdb_search_list_free(keys); - - return status; -} - -static SIG_ATOMIC_T gotalarm; - -/*************************************************************** - Signal function to tell us we timed out. -****************************************************************/ - -static void gotalarm_sig(void) -{ - gotalarm = 1; -} - -/* - lock the secrets tdb based on a string - this is used as a primitive form of mutex - between smbd instances. -*/ -BOOL secrets_named_mutex(const char *name, unsigned int timeout) -{ - TDB_DATA key; - int ret; - - if (!message_init()) + pstrcpy(key, dn); + for (p=key; *p; p++) + if (*p == ',') *p = '/'; + + data=secrets_fetch(key, &size); + if (!size) { + DEBUG(0,("fetch_ldap_pw: no ldap secret retrieved!\n")); return False; - - key.dptr = (char *)name; - key.dsize = strlen(name)+1; - - /* Allow tdb_chainlock to be interrupted by an alarm. */ - gotalarm = 0; - tdb_set_lock_alarm(&gotalarm); - - if (timeout) { - CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig); - alarm(timeout); } - - ret = tdb_chainlock(tdb, key); - - /* Prevent tdb_chainlock from being interrupted by an alarm. */ - tdb_set_lock_alarm(NULL); - - if (timeout) { - alarm(0); - CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN); - if (gotalarm) - return False; + + if (size > len-1) + { + DEBUG(0,("fetch_ldap_pw: ldap secret is too long (%d > %d)!\n", size, len-1)); + return False; } - if (ret == 0) - DEBUG(10,("secrets_named_mutex: got mutex for %s\n", name )); - - return (ret == 0); -} - -/* - unlock a named mutex -*/ -void secrets_named_mutex_release(char *name) -{ - TDB_DATA key; - - key.dptr = name; - key.dsize = strlen(name)+1; - - tdb_chainunlock(tdb, key); - DEBUG(10,("secrets_named_mutex: released mutex for %s\n", name )); + memcpy(pw, data, size); + pw[size] = '\0'; + + return True; } |