X-Git-Url: http://git.samba.org/samba.git/?a=blobdiff_plain;f=source%2Fpassdb%2Fsecrets.c;h=44d164e7b333499d7fe49b36cb028eda105d6a7c;hb=45d0b0db8aa92f56584bb8fab4ea525ea2b449c7;hp=29437c35a872ba98dcf7f0518c836f8893a084d4;hpb=939c3cb5d78e3a2236209b296aa8aba8bdce32d3;p=tprouty%2Fsamba.git diff --git a/source/passdb/secrets.c b/source/passdb/secrets.c index 29437c35a8..44d164e7b3 100644 --- a/source/passdb/secrets.c +++ b/source/passdb/secrets.c @@ -104,8 +104,9 @@ BOOL secrets_store(const char *key, const void *data, size_t size) secrets_init(); if (!tdb) return False; - return tdb_store(tdb, string_tdb_data(key), make_tdb_data(data, size), - TDB_REPLACE) == 0; + return tdb_trans_store(tdb, string_tdb_data(key), + make_tdb_data((const char *)data, size), + TDB_REPLACE) == 0; } @@ -138,7 +139,7 @@ BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) { DOM_SID *dyn_sid; fstring key; - size_t size; + size_t size = 0; slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_SID, domain); strupper_m(key); @@ -147,8 +148,7 @@ BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) if (dyn_sid == NULL) return False; - if (size != sizeof(DOM_SID)) - { + if (size != sizeof(DOM_SID)) { SAFE_FREE(dyn_sid); return False; } @@ -158,37 +158,39 @@ BOOL secrets_fetch_domain_sid(const char *domain, DOM_SID *sid) return True; } -BOOL secrets_store_domain_guid(const char *domain, struct uuid *guid) +BOOL secrets_store_domain_guid(const char *domain, struct GUID *guid) { fstring key; slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_GUID, domain); strupper_m(key); - return secrets_store(key, guid, sizeof(struct uuid)); + return secrets_store(key, guid, sizeof(struct GUID)); } -BOOL secrets_fetch_domain_guid(const char *domain, struct uuid *guid) +BOOL secrets_fetch_domain_guid(const char *domain, struct GUID *guid) { - struct uuid *dyn_guid; + struct GUID *dyn_guid; fstring key; - size_t size; - struct uuid new_guid; + size_t size = 0; + struct GUID new_guid; slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_GUID, domain); strupper_m(key); - dyn_guid = (struct uuid *)secrets_fetch(key, &size); - - if ((!dyn_guid) && (lp_server_role() == ROLE_DOMAIN_PDC)) { - smb_uuid_generate_random(&new_guid); - if (!secrets_store_domain_guid(domain, &new_guid)) - return False; - dyn_guid = (struct uuid *)secrets_fetch(key, &size); - if (dyn_guid == NULL) + dyn_guid = (struct GUID *)secrets_fetch(key, &size); + + if (!dyn_guid) { + if (lp_server_role() == ROLE_DOMAIN_PDC) { + smb_uuid_generate_random(&new_guid); + if (!secrets_store_domain_guid(domain, &new_guid)) + return False; + dyn_guid = (struct GUID *)secrets_fetch(key, &size); + } + if (dyn_guid == NULL) { return False; + } } - if (size != sizeof(struct uuid)) - { + if (size != sizeof(struct GUID)) { DEBUG(1,("UUID size %d is wrong!\n", (int)size)); SAFE_FREE(dyn_guid); return False; @@ -206,7 +208,7 @@ BOOL secrets_fetch_domain_guid(const char *domain, struct uuid *guid) * * @return stored password's key **/ -const char *trust_keystr(const char *domain) +static const char *trust_keystr(const char *domain) { static fstring keystr; @@ -244,7 +246,7 @@ BOOL secrets_lock_trust_account_password(const char *domain, BOOL dolock) return False; if (dolock) - return (tdb_lock_bystring(tdb, trust_keystr(domain),0) == 0); + return (tdb_lock_bystring(tdb, trust_keystr(domain)) == 0); else tdb_unlock_bystring(tdb, trust_keystr(domain)); return True; @@ -276,7 +278,7 @@ BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], { struct machine_acct_pass *pass; char *plaintext; - size_t size; + size_t size = 0; plaintext = secrets_fetch_machine_password(domain, pass_last_set_time, channel); @@ -287,7 +289,8 @@ BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], return True; } - if (!(pass = secrets_fetch(trust_keystr(domain), &size))) { + if (!(pass = (struct machine_acct_pass *)secrets_fetch( + trust_keystr(domain), &size))) { DEBUG(5, ("secrets_fetch failed!\n")); return False; } @@ -301,7 +304,6 @@ BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], *pass_last_set_time = pass->mod_time; } memcpy(ret_pwd, pass->hash, 16); - SAFE_FREE(pass); if (channel) { *channel = get_default_sec_channel(); @@ -310,14 +312,145 @@ BOOL secrets_fetch_trust_account_password(const char *domain, uint8 ret_pwd[16], /* Test if machine password has expired and needs to be changed */ if (lp_machine_password_timeout()) { if (pass->mod_time > 0 && time(NULL) > (pass->mod_time + - lp_machine_password_timeout())) { + (time_t)lp_machine_password_timeout())) { global_machine_password_needs_changing = True; } } + SAFE_FREE(pass); return True; } +/** + * Pack SID passed by pointer + * + * @param pack_buf pointer to buffer which is to be filled with packed data + * @param bufsize size of packing buffer + * @param sid pointer to sid to be packed + * + * @return length of the packed representation of the whole structure + **/ +static size_t tdb_sid_pack(char* pack_buf, int bufsize, DOM_SID* sid) +{ + int idx; + size_t len = 0; + + if (!sid || !pack_buf) return -1; + + len += tdb_pack(pack_buf + len, bufsize - len, "bb", sid->sid_rev_num, + sid->num_auths); + + for (idx = 0; idx < 6; idx++) { + len += tdb_pack(pack_buf + len, bufsize - len, "b", + sid->id_auth[idx]); + } + + for (idx = 0; idx < MAXSUBAUTHS; idx++) { + len += tdb_pack(pack_buf + len, bufsize - len, "d", + sid->sub_auths[idx]); + } + + return len; +} + +/** + * Unpack SID into a pointer + * + * @param pack_buf pointer to buffer with packed representation + * @param bufsize size of the buffer + * @param sid pointer to sid structure to be filled with unpacked data + * + * @return size of structure unpacked from buffer + **/ +static size_t tdb_sid_unpack(char* pack_buf, int bufsize, DOM_SID* sid) +{ + int idx, len = 0; + + if (!sid || !pack_buf) return -1; + + len += tdb_unpack(pack_buf + len, bufsize - len, "bb", + &sid->sid_rev_num, &sid->num_auths); + + for (idx = 0; idx < 6; idx++) { + len += tdb_unpack(pack_buf + len, bufsize - len, "b", + &sid->id_auth[idx]); + } + + for (idx = 0; idx < MAXSUBAUTHS; idx++) { + len += tdb_unpack(pack_buf + len, bufsize - len, "d", + &sid->sub_auths[idx]); + } + + return len; +} + +/** + * Pack TRUSTED_DOM_PASS passed by pointer + * + * @param pack_buf pointer to buffer which is to be filled with packed data + * @param bufsize size of the buffer + * @param pass pointer to trusted domain password to be packed + * + * @return length of the packed representation of the whole structure + **/ +static size_t tdb_trusted_dom_pass_pack(char* pack_buf, int bufsize, + TRUSTED_DOM_PASS* pass) +{ + int idx, len = 0; + + if (!pack_buf || !pass) return -1; + + /* packing unicode domain name and password */ + len += tdb_pack(pack_buf + len, bufsize - len, "d", + pass->uni_name_len); + + for (idx = 0; idx < 32; idx++) + len += tdb_pack(pack_buf + len, bufsize - len, "w", + pass->uni_name[idx]); + + len += tdb_pack(pack_buf + len, bufsize - len, "dPd", pass->pass_len, + pass->pass, pass->mod_time); + + /* packing SID structure */ + len += tdb_sid_pack(pack_buf + len, bufsize - len, &pass->domain_sid); + + return len; +} + + +/** + * Unpack TRUSTED_DOM_PASS passed by pointer + * + * @param pack_buf pointer to buffer with packed representation + * @param bufsize size of the buffer + * @param pass pointer to trusted domain password to be filled with unpacked data + * + * @return size of structure unpacked from buffer + **/ +static size_t tdb_trusted_dom_pass_unpack(char* pack_buf, int bufsize, + TRUSTED_DOM_PASS* pass) +{ + int idx, len = 0; + + if (!pack_buf || !pass) return -1; + + /* unpack unicode domain name and plaintext password */ + len += tdb_unpack(pack_buf, bufsize - len, "d", &pass->uni_name_len); + + for (idx = 0; idx < 32; idx++) + len += tdb_unpack(pack_buf + len, bufsize - len, "w", + &pass->uni_name[idx]); + + len += tdb_unpack(pack_buf + len, bufsize - len, "dPd", + &pass->pass_len, &pass->pass, &pass->mod_time); + + /* unpack domain sid */ + len += tdb_sid_unpack(pack_buf + len, bufsize - len, + &pass->domain_sid); + + return len; +} + /************************************************************************ Routine to get account password to trusted domain ************************************************************************/ @@ -326,7 +459,7 @@ BOOL secrets_fetch_trusted_domain_password(const char *domain, char** pwd, DOM_SID *sid, time_t *pass_last_set_time) { struct trusted_dom_pass pass; - size_t size; + size_t size = 0; /* unpacking structures */ char* pass_buf; @@ -335,7 +468,8 @@ BOOL secrets_fetch_trusted_domain_password(const char *domain, char** pwd, ZERO_STRUCT(pass); /* fetching trusted domain password structure */ - if (!(pass_buf = secrets_fetch(trustdom_keystr(domain), &size))) { + if (!(pass_buf = (char *)secrets_fetch(trustdom_keystr(domain), + &size))) { DEBUG(5, ("secrets_fetch failed!\n")); return False; } @@ -361,25 +495,11 @@ BOOL secrets_fetch_trusted_domain_password(const char *domain, char** pwd, if (pass_last_set_time) *pass_last_set_time = pass.mod_time; /* domain sid */ - sid_copy(sid, &pass.domain_sid); + if (sid != NULL) sid_copy(sid, &pass.domain_sid); return True; } -/************************************************************************ - Routine to set the trust account password for a domain. -************************************************************************/ - -BOOL secrets_store_trust_account_password(const char *domain, uint8 new_pwd[16]) -{ - struct machine_acct_pass pass; - - pass.mod_time = time(NULL); - memcpy(pass.hash, new_pwd, 16); - - return secrets_store(trust_keystr(domain), (void *)&pass, sizeof(pass)); -} - /** * Routine to store the password for trusted domain * @@ -390,10 +510,11 @@ BOOL secrets_store_trust_account_password(const char *domain, uint8 new_pwd[16]) * @return true if succeeded **/ -BOOL secrets_store_trusted_domain_password(const char* domain, smb_ucs2_t *uni_dom_name, - size_t uni_name_len, const char* pwd, - DOM_SID sid) -{ +BOOL secrets_store_trusted_domain_password(const char* domain, const char* pwd, + const DOM_SID *sid) +{ + smb_ucs2_t *uni_dom_name; + /* packing structures */ pstring pass_buf; int pass_len = 0; @@ -401,13 +522,16 @@ BOOL secrets_store_trusted_domain_password(const char* domain, smb_ucs2_t *uni_d struct trusted_dom_pass pass; ZERO_STRUCT(pass); - - /* unicode domain name and its length */ - if (!uni_dom_name) + + if (push_ucs2_allocate(&uni_dom_name, domain) == (size_t)-1) { + DEBUG(0, ("Could not convert domain name %s to unicode\n", + domain)); return False; - + } + strncpy_w(pass.uni_name, uni_dom_name, sizeof(pass.uni_name) - 1); - pass.uni_name_len = uni_name_len; + pass.uni_name_len = strlen_w(uni_dom_name)+1; + SAFE_FREE(uni_dom_name); /* last change time */ pass.mod_time = time(NULL); @@ -417,7 +541,7 @@ BOOL secrets_store_trusted_domain_password(const char* domain, smb_ucs2_t *uni_d fstrcpy(pass.pass, pwd); /* domain sid */ - sid_copy(&pass.domain_sid, &sid); + sid_copy(&pass.domain_sid, sid); pass_len = tdb_trusted_dom_pass_pack(pass_buf, pass_buf_len, &pass); @@ -489,7 +613,7 @@ char *secrets_fetch_machine_password(const char *domain, uint32 *last_set_time; asprintf(&key, "%s/%s", SECRETS_MACHINE_LAST_CHANGE_TIME, domain); strupper_m(key); - last_set_time = secrets_fetch(key, &size); + last_set_time = (unsigned int *)secrets_fetch(key, &size); if (last_set_time) { *pass_last_set_time = IVAL(last_set_time,0); SAFE_FREE(last_set_time); @@ -504,7 +628,7 @@ char *secrets_fetch_machine_password(const char *domain, uint32 *channel_type; asprintf(&key, "%s/%s", SECRETS_MACHINE_SEC_CHANNEL_TYPE, domain); strupper_m(key); - channel_type = secrets_fetch(key, &size); + channel_type = (unsigned int *)secrets_fetch(key, &size); if (channel_type) { *channel = IVAL(channel_type,0); SAFE_FREE(channel_type); @@ -518,18 +642,20 @@ char *secrets_fetch_machine_password(const char *domain, } /******************************************************************* - Wrapper around retrieving the trust account password + Wrapper around retrieving the trust account password. + appropriate account name is stored in account_name. *******************************************************************/ - -BOOL get_trust_pw(const char *domain, uint8 ret_pwd[16], uint32 *channel) + +BOOL get_trust_pw(const char *domain, uint8 ret_pwd[16], + const char **account_name, uint32 *channel) { DOM_SID sid; char *pwd; time_t last_set_time; - + /* if we are a DC and this is not our domain, then lookup an account for the domain trust */ - + if ( IS_DC && !strequal(domain, lp_workgroup()) && lp_allow_trusted_domains() ) { if (!secrets_fetch_trusted_domain_password(domain, &pwd, &sid, &last_set_time)) { @@ -538,35 +664,36 @@ BOOL get_trust_pw(const char *domain, uint8 ret_pwd[16], uint32 *channel) domain)); return False; } - + *channel = SEC_CHAN_DOMAIN; E_md4hash(pwd, ret_pwd); SAFE_FREE(pwd); + if (account_name != NULL) { + *account_name = lp_workgroup(); + } + return True; } - + /* Just get the account for the requested domain. In the future this * might also cover to be member of more than one domain. */ - + if (secrets_fetch_trust_account_password(domain, ret_pwd, &last_set_time, channel)) + { + if (account_name != NULL) { + *account_name = global_myname(); + } + return True; + } DEBUG(5, ("get_trust_pw: could not fetch trust account " "password for domain %s\n", domain)); return False; } -/************************************************************************ - Routine to delete the machine trust account password file for a domain. -************************************************************************/ - -BOOL trust_password_delete(const char *domain) -{ - return secrets_delete(trust_keystr(domain)); -} - /************************************************************************ Routine to delete the password for trusted domain ************************************************************************/ @@ -599,7 +726,7 @@ BOOL secrets_store_ldap_pw(const char* dn, char* pw) BOOL fetch_ldap_pw(char **dn, char** pw) { char *key = NULL; - size_t size; + size_t size = 0; *dn = smb_xstrdup(lp_ldap_admin_dn()); @@ -608,7 +735,7 @@ BOOL fetch_ldap_pw(char **dn, char** pw) DEBUG(0, ("fetch_ldap_pw: asprintf failed!\n")); } - *pw=secrets_fetch(key, &size); + *pw=(char *)secrets_fetch(key, &size); SAFE_FREE(key); if (!size) { @@ -626,7 +753,7 @@ BOOL fetch_ldap_pw(char **dn, char** pw) for (p=old_style_key; *p; p++) if (*p == ',') *p = '/'; - data=secrets_fetch(old_style_key, &size); + data=(char *)secrets_fetch(old_style_key, &size); if (!size && size < sizeof(old_style_pw)) { DEBUG(0,("fetch_ldap_pw: neither ldap secret retrieved!\n")); SAFE_FREE(old_style_key); @@ -660,138 +787,119 @@ BOOL fetch_ldap_pw(char **dn, char** 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, unsigned int max_num_domains, - int *num_domains, TRUSTDOM ***domains) +NTSTATUS secrets_trusted_domains(TALLOC_CTX *mem_ctx, uint32 *num_domains, + struct trustdom_info ***domains) { TDB_LIST_NODE *keys, *k; - TRUSTDOM *dom = NULL; char *pattern; - unsigned int start_idx; - uint32 idx = 0; - size_t size, packed_size = 0; - fstring dom_name; - char *packed_pass; - struct trusted_dom_pass *pass = TALLOC_ZERO_P(ctx, struct trusted_dom_pass); - NTSTATUS status; + TALLOC_CTX *tmp_ctx; - if (!secrets_init()) return NT_STATUS_ACCESS_DENIED; - - if (!pass) { - DEBUG(0, ("talloc_zero failed!\n")); + if (!(tmp_ctx = talloc_new(mem_ctx))) { return NT_STATUS_NO_MEMORY; } - - *num_domains = 0; - start_idx = *enum_ctx; + if (!secrets_init()) return NT_STATUS_ACCESS_DENIED; + /* generate searching pattern */ - if (!(pattern = talloc_asprintf(ctx, "%s/*", SECRETS_DOMTRUST_ACCT_PASS))) { - DEBUG(0, ("secrets_get_trusted_domains: talloc_asprintf() failed!\n")); + pattern = talloc_asprintf(tmp_ctx, "%s/*", SECRETS_DOMTRUST_ACCT_PASS); + if (pattern == NULL) { + DEBUG(0, ("secrets_trusted_domains: talloc_asprintf() " + "failed!\n")); + TALLOC_FREE(tmp_ctx); 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)); + *num_domains = 0; + + /* + * Make sure that a talloc context for the trustdom_info structs + * exists + */ - *domains = TALLOC_ZERO_ARRAY(ctx, TRUSTDOM *, max_num_domains); + if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) { + TALLOC_FREE(tmp_ctx); + return NT_STATUS_NO_MEMORY; + } /* 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 secrets db -- way to go ... */ for (k = keys; k; k = k->next) { + char *packed_pass; + size_t size = 0, packed_size = 0; + struct trusted_dom_pass pass; char *secrets_key; + struct trustdom_info *dom_info; /* important: ensure null-termination of the key string */ - secrets_key = SMB_STRNDUP(k->node_key.dptr, k->node_key.dsize); + secrets_key = talloc_strndup(tmp_ctx, + k->node_key.dptr, + k->node_key.dsize); if (!secrets_key) { DEBUG(0, ("strndup failed!\n")); + tdb_search_list_free(keys); + TALLOC_FREE(tmp_ctx); return NT_STATUS_NO_MEMORY; } - packed_pass = secrets_fetch(secrets_key, &size); - packed_size = tdb_trusted_dom_pass_unpack(packed_pass, size, pass); + packed_pass = (char *)secrets_fetch(secrets_key, &size); + packed_size = tdb_trusted_dom_pass_unpack(packed_pass, size, + &pass); /* packed representation isn't needed anymore */ SAFE_FREE(packed_pass); if (size != packed_size) { - DEBUG(2, ("Secrets record %s is invalid!\n", secrets_key)); + DEBUG(2, ("Secrets record %s is invalid!\n", + secrets_key)); 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_P(ctx, TRUSTDOM); - if (!dom) { - /* free returned tdb record */ - 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_MEMDUP(ctx, pass->uni_name, - (strlen_w(pass->uni_name) + 1) * sizeof(smb_ucs2_t)); - - (*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)); + if (pass.domain_sid.num_auths != 4) { + DEBUG(0, ("SID %s is not a domain sid, has %d " + "auths instead of 4\n", + sid_string_static(&pass.domain_sid), + pass.domain_sid.num_auths)); + continue; + } + + if (!(dom_info = TALLOC_P(*domains, struct trustdom_info))) { + DEBUG(0, ("talloc failed\n")); + tdb_search_list_free(keys); + TALLOC_FREE(tmp_ctx); + return NT_STATUS_NO_MEMORY; + } + + if (pull_ucs2_talloc(dom_info, &dom_info->name, + pass.uni_name) == (size_t)-1) { + DEBUG(2, ("pull_ucs2_talloc failed\n")); + tdb_search_list_free(keys); + TALLOC_FREE(tmp_ctx); + return NT_STATUS_NO_MEMORY; + } + + sid_copy(&dom_info->sid, &pass.domain_sid); + + ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info, + domains, num_domains); + + if (*domains == NULL) { + tdb_search_list_free(keys); + TALLOC_FREE(tmp_ctx); + return NT_STATUS_NO_MEMORY; } - - idx++; } - DEBUG(5, ("secrets_get_trusted_domains: got %d domains\n", *num_domains)); + DEBUG(5, ("secrets_get_trusted_domains: got %d domains\n", + *num_domains)); /* free the results of searching the keys */ tdb_search_list_free(keys); + TALLOC_FREE(tmp_ctx); - return status; + return NT_STATUS_OK; } /******************************************************************************* @@ -803,10 +911,10 @@ BOOL secrets_named_mutex(const char *name, unsigned int timeout) { int ret = 0; - if (!message_init()) + if (!secrets_init()) return False; - ret = tdb_lock_bystring(tdb, name, timeout); + ret = tdb_lock_bystring_with_timeout(tdb, name, timeout); if (ret == 0) DEBUG(10,("secrets_named_mutex: got mutex for %s\n", name )); @@ -823,35 +931,6 @@ void secrets_named_mutex_release(const char *name) DEBUG(10,("secrets_named_mutex: released mutex for %s\n", name )); } -/********************************************************* - Check to see if we must talk to the PDC to avoid sam - sync delays - ********************************************************/ - -BOOL must_use_pdc( const char *domain ) -{ - time_t now = time(NULL); - time_t last_change_time; - unsigned char passwd[16]; - - if ( !secrets_fetch_trust_account_password(domain, passwd, &last_change_time, NULL) ) - return False; - - /* - * If the time the machine password has changed - * was less than about 15 minutes then we need to contact - * the PDC only, as we cannot be sure domain replication - * has yet taken place. Bug found by Gerald (way to go - * Gerald !). JRA. - */ - - if ( now - last_change_time < SAM_SYNC_WINDOW ) - return True; - - return False; - -} - /******************************************************************************* Store a complete AFS keyfile into secrets.tdb. *******************************************************************************/ @@ -877,7 +956,7 @@ BOOL secrets_fetch_afs_key(const char *cell, struct afs_key *result) { fstring key; struct afs_keyfile *keyfile; - size_t size; + size_t size = 0; uint32 i; slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_AFS_KEYFILE, cell); @@ -919,9 +998,9 @@ BOOL secrets_fetch_afs_key(const char *cell, struct afs_key *result) *******************************************************************************/ void secrets_fetch_ipc_userpass(char **username, char **domain, char **password) { - *username = secrets_fetch(SECRETS_AUTH_USER, NULL); - *domain = secrets_fetch(SECRETS_AUTH_DOMAIN, NULL); - *password = secrets_fetch(SECRETS_AUTH_PASSWORD, NULL); + *username = (char *)secrets_fetch(SECRETS_AUTH_USER, NULL); + *domain = (char *)secrets_fetch(SECRETS_AUTH_DOMAIN, NULL); + *password = (char *)secrets_fetch(SECRETS_AUTH_PASSWORD, NULL); if (*username && **username) { @@ -942,3 +1021,265 @@ void secrets_fetch_ipc_userpass(char **username, char **domain, char **password) } } +/****************************************************************************** + Open or create the schannel session store tdb. +*******************************************************************************/ + +static TDB_CONTEXT *open_schannel_session_store(TALLOC_CTX *mem_ctx) +{ + TDB_DATA vers; + uint32 ver; + TDB_CONTEXT *tdb_sc = NULL; + char *fname = talloc_asprintf(mem_ctx, "%s/schannel_store.tdb", lp_private_dir()); + + if (!fname) { + return NULL; + } + + tdb_sc = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600); + + if (!tdb_sc) { + DEBUG(0,("open_schannel_session_store: Failed to open %s\n", fname)); + TALLOC_FREE(fname); + return NULL; + } + + vers = tdb_fetch_bystring(tdb_sc, "SCHANNEL_STORE_VERSION"); + if (vers.dptr == NULL) { + /* First opener, no version. */ + SIVAL(&ver,0,1); + vers.dptr = (char *)&ver; + vers.dsize = 4; + tdb_store_bystring(tdb_sc, "SCHANNEL_STORE_VERSION", vers, TDB_REPLACE); + vers.dptr = NULL; + } else if (vers.dsize == 4) { + ver = IVAL(vers.dptr,0); + if (ver != 1) { + tdb_close(tdb_sc); + tdb_sc = NULL; + DEBUG(0,("open_schannel_session_store: wrong version number %d in %s\n", + (int)ver, fname )); + } + } else { + tdb_close(tdb_sc); + tdb_sc = NULL; + DEBUG(0,("open_schannel_session_store: wrong version number size %d in %s\n", + (int)vers.dsize, fname )); + } + + SAFE_FREE(vers.dptr); + TALLOC_FREE(fname); + + return tdb_sc; +} + +/****************************************************************************** + Store the schannel state after an AUTH2 call. + Note we must be root here. +*******************************************************************************/ + +BOOL secrets_store_schannel_session_info(TALLOC_CTX *mem_ctx, + const char *remote_machine, + const struct dcinfo *pdc) +{ + TDB_CONTEXT *tdb_sc = NULL; + TDB_DATA value; + BOOL ret; + char *keystr = talloc_asprintf(mem_ctx, "%s/%s", SECRETS_SCHANNEL_STATE, + remote_machine); + if (!keystr) { + return False; + } + + strupper_m(keystr); + + /* Work out how large the record is. */ + value.dsize = tdb_pack(NULL, 0, "dBBBBBfff", + pdc->sequence, + 8, pdc->seed_chal.data, + 8, pdc->clnt_chal.data, + 8, pdc->srv_chal.data, + 16, pdc->sess_key, + 16, pdc->mach_pw, + pdc->mach_acct, + pdc->remote_machine, + pdc->domain); + + value.dptr = (char *)TALLOC(mem_ctx, value.dsize); + if (!value.dptr) { + TALLOC_FREE(keystr); + return False; + } + + value.dsize = tdb_pack(value.dptr, value.dsize, "dBBBBBfff", + pdc->sequence, + 8, pdc->seed_chal.data, + 8, pdc->clnt_chal.data, + 8, pdc->srv_chal.data, + 16, pdc->sess_key, + 16, pdc->mach_pw, + pdc->mach_acct, + pdc->remote_machine, + pdc->domain); + + tdb_sc = open_schannel_session_store(mem_ctx); + if (!tdb_sc) { + TALLOC_FREE(keystr); + TALLOC_FREE(value.dptr); + return False; + } + + ret = (tdb_store_bystring(tdb_sc, keystr, value, TDB_REPLACE) == 0 ? True : False); + + DEBUG(3,("secrets_store_schannel_session_info: stored schannel info with key %s\n", + keystr )); + + tdb_close(tdb_sc); + TALLOC_FREE(keystr); + TALLOC_FREE(value.dptr); + return ret; +} + +/****************************************************************************** + Restore the schannel state on a client reconnect. + Note we must be root here. +*******************************************************************************/ + +BOOL secrets_restore_schannel_session_info(TALLOC_CTX *mem_ctx, + const char *remote_machine, + struct dcinfo **ppdc) +{ + TDB_CONTEXT *tdb_sc = NULL; + TDB_DATA value; + unsigned char *pseed_chal = NULL; + unsigned char *pclnt_chal = NULL; + unsigned char *psrv_chal = NULL; + unsigned char *psess_key = NULL; + unsigned char *pmach_pw = NULL; + uint32 l1, l2, l3, l4, l5; + int ret; + struct dcinfo *pdc = NULL; + char *keystr = talloc_asprintf(mem_ctx, "%s/%s", SECRETS_SCHANNEL_STATE, + remote_machine); + + *ppdc = NULL; + + if (!keystr) { + return False; + } + + strupper_m(keystr); + + tdb_sc = open_schannel_session_store(mem_ctx); + if (!tdb_sc) { + TALLOC_FREE(keystr); + return False; + } + + value = tdb_fetch_bystring(tdb_sc, keystr); + if (!value.dptr) { + DEBUG(0,("secrets_restore_schannel_session_info: Failed to find entry with key %s\n", + keystr )); + tdb_close(tdb_sc); + return False; + } + + pdc = TALLOC_ZERO_P(mem_ctx, struct dcinfo); + + /* Retrieve the record. */ + ret = tdb_unpack(value.dptr, value.dsize, "dBBBBBfff", + &pdc->sequence, + &l1, &pseed_chal, + &l2, &pclnt_chal, + &l3, &psrv_chal, + &l4, &psess_key, + &l5, &pmach_pw, + &pdc->mach_acct, + &pdc->remote_machine, + &pdc->domain); + + if (ret == -1 || l1 != 8 || l2 != 8 || l3 != 8 || l4 != 16 || l5 != 16) { + /* Bad record - delete it. */ + tdb_delete_bystring(tdb_sc, keystr); + tdb_close(tdb_sc); + TALLOC_FREE(keystr); + TALLOC_FREE(pdc); + SAFE_FREE(pseed_chal); + SAFE_FREE(pclnt_chal); + SAFE_FREE(psrv_chal); + SAFE_FREE(psess_key); + SAFE_FREE(pmach_pw); + SAFE_FREE(value.dptr); + return False; + } + + tdb_close(tdb_sc); + + memcpy(pdc->seed_chal.data, pseed_chal, 8); + memcpy(pdc->clnt_chal.data, pclnt_chal, 8); + memcpy(pdc->srv_chal.data, psrv_chal, 8); + memcpy(pdc->sess_key, psess_key, 16); + memcpy(pdc->mach_pw, pmach_pw, 16); + + /* We know these are true so didn't bother to store them. */ + pdc->challenge_sent = True; + pdc->authenticated = True; + + DEBUG(3,("secrets_restore_schannel_session_info: restored schannel info key %s\n", + keystr )); + + SAFE_FREE(pseed_chal); + SAFE_FREE(pclnt_chal); + SAFE_FREE(psrv_chal); + SAFE_FREE(psess_key); + SAFE_FREE(pmach_pw); + + TALLOC_FREE(keystr); + SAFE_FREE(value.dptr); + + *ppdc = pdc; + + return True; +} + +BOOL secrets_store_generic(const char *owner, const char *key, const char *secret) +{ + char *tdbkey = NULL; + BOOL ret; + + if (asprintf(&tdbkey, "SECRETS/GENERIC/%s/%s", owner, key) < 0) { + DEBUG(0, ("asprintf failed!\n")); + return False; + } + + ret = secrets_store(tdbkey, secret, strlen(secret)+1); + + SAFE_FREE(tdbkey); + return ret; +} + +/******************************************************************* + Find the ldap password. +******************************************************************/ + +char *secrets_fetch_generic(const char *owner, const char *key) +{ + char *secret = NULL; + char *tdbkey = NULL; + + if (( ! owner) || ( ! key)) { + DEBUG(1, ("Invalid Paramters")); + return NULL; + } + + if (asprintf(&tdbkey, "SECRETS/GENERIC/%s/%s", owner, key) < 0) { + DEBUG(0, ("Out of memory!\n")); + return NULL; + } + + secret = (char *)secrets_fetch(tdbkey, NULL); + SAFE_FREE(tdbkey); + + return secret; +} +