passdb/secrets.c

ソースコードを見る。

関数
static void	get_rand_seed (int *new_seed)
	Use a TDB to store an incrementing random seed.
BOOL	secrets_init (void)
void *	secrets_fetch (const char *key, size_t *size)
BOOL	secrets_store (const char *key, const void *data, size_t size)
BOOL	secrets_delete (const char *key)
BOOL	secrets_store_domain_sid (const char *domain, const DOM_SID *sid)
BOOL	secrets_fetch_domain_sid (const char *domain, DOM_SID *sid)
BOOL	secrets_store_domain_guid (const char *domain, struct GUID *guid)
BOOL	secrets_fetch_domain_guid (const char *domain, struct GUID *guid)
static const char *	trust_keystr (const char *domain)
	Form a key for fetching the machine trust account password
static char *	trustdom_keystr (const char *domain)
	Form a key for fetching a trusted domain password
BOOL	secrets_lock_trust_account_password (const char *domain, BOOL dolock)
uint32	get_default_sec_channel (void)
BOOL	secrets_fetch_trust_account_password_legacy (const char *domain, uint8 ret_pwd[16], time_t *pass_last_set_time, uint32 *channel)
BOOL	secrets_fetch_trust_account_password (const char *domain, uint8 ret_pwd[16], time_t *pass_last_set_time, uint32 *channel)
static size_t	tdb_sid_pack (char *pack_buf, int bufsize, DOM_SID *sid)
	Pack SID passed by pointer
static size_t	tdb_sid_unpack (char *pack_buf, int bufsize, DOM_SID *sid)
	Unpack SID into a pointer
static size_t	tdb_trusted_dom_pass_pack (char *pack_buf, int bufsize, TRUSTED_DOM_PASS *pass)
	Pack TRUSTED_DOM_PASS passed by pointer
static size_t	tdb_trusted_dom_pass_unpack (char *pack_buf, int bufsize, TRUSTED_DOM_PASS *pass)
	Unpack TRUSTED_DOM_PASS passed by pointer
BOOL	secrets_fetch_trusted_domain_password (const char *domain, char **pwd, DOM_SID *sid, time_t *pass_last_set_time)
BOOL	secrets_store_trusted_domain_password (const char *domain, const char *pwd, const DOM_SID *sid)
	Routine to store the password for trusted domain
BOOL	secrets_store_machine_password (const char *pass, const char *domain, uint32 sec_channel)
char *	secrets_fetch_machine_password (const char *domain, time_t *pass_last_set_time, uint32 *channel)
BOOL	is_trusted_domain_situation (const char *domain_name)
BOOL	get_trust_pw_clear (const char *domain, char **ret_pwd, const char **account_name, uint32 *channel)
BOOL	get_trust_pw_hash (const char *domain, uint8 ret_pwd[16], const char **account_name, uint32 *channel)
BOOL	trusted_domain_password_delete (const char *domain)
BOOL	secrets_store_ldap_pw (const char *dn, char *pw)
BOOL	fetch_ldap_pw (char **dn, char **pw)
NTSTATUS	secrets_trusted_domains (TALLOC_CTX *mem_ctx, uint32 *num_domains, struct trustdom_info ***domains)
	Get trusted domains info from secrets.tdb.
BOOL	secrets_named_mutex (const char *name, unsigned int timeout)
void	secrets_named_mutex_release (const char *name)
BOOL	secrets_store_afs_keyfile (const char *cell, const struct afs_keyfile *keyfile)
BOOL	secrets_fetch_afs_key (const char *cell, struct afs_key *result)
void	secrets_fetch_ipc_userpass (char **username, char **domain, char **password)
static TDB_CONTEXT *	open_schannel_session_store (TALLOC_CTX *mem_ctx)
BOOL	secrets_store_schannel_session_info (TALLOC_CTX *mem_ctx, const char *remote_machine, const struct dcinfo *pdc)
BOOL	secrets_restore_schannel_session_info (TALLOC_CTX *mem_ctx, const char *remote_machine, struct dcinfo **ppdc)
BOOL	secrets_store_generic (const char *owner, const char *key, const char *secret)
char *	secrets_fetch_generic (const char *owner, const char *key)
変数
static TDB_CONTEXT *	tdb
BOOL	global_machine_password_needs_changing

---

関数

static void get_rand_seed

(

int *

new_seed

)

[static]

Use a TDB to store an incrementing random seed.

Initialised to the current pid, the very first time Samba starts, and incremented by one each time it is needed.

覚え書き:

Not called by systems with a working /dev/urandom.

secrets.c の 44 行で定義されています。

参照先 sys_getpid()・tdb・tdb_change_int32_atomic().

参照元 secrets_init().

{
        *new_seed = sys_getpid();
        if (tdb) {
                tdb_change_int32_atomic(tdb, "INFO/random_seed", new_seed, 1);
        }
}

BOOL secrets_init

(

void

)

secrets.c の 53 行で定義されています。

参照先 generate_random_buffer()・get_rand_seed()・set_rand_reseed_callback()・tdb・tdb_open_log().

参照元 ads_keytab_add_entry()・ads_secrets_verify_ticket()・afs_createtoken()・check_ads_config()・init_structs()・main()・net_ads_changetrustpw()・net_ads_join_ok()・net_ads_leave()・net_afs_key()・net_getdomainsid()・net_getlocalsid()・net_use_krb_machine_account()・net_use_machine_account()・popt_common_credentials_callback()・secrets_delete()・secrets_fetch()・secrets_named_mutex()・secrets_store()・secrets_trusted_domains()・set_ctrl()・store_ldap_admin_pw()・wbinfo_set_auth_user().

{
        pstring fname;
        unsigned char dummy;

        if (tdb)
                return True;

        pstrcpy(fname, lp_private_dir());
        pstrcat(fname,"/secrets.tdb");

        tdb = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);

        if (!tdb) {
                DEBUG(0,("Failed to open %s\n", fname));
                return False;
        }

        /**
         * Set a reseed function for the crypto random generator 
         * 
         * This avoids a problem where systems without /dev/urandom
         * could send the same challenge to multiple clients
         */
        set_rand_reseed_callback(get_rand_seed);

        /* Ensure that the reseed is done now, while we are root, etc */
        generate_random_buffer(&dummy, sizeof(dummy));

        return True;
}

void* secrets_fetch	(	const char *	key,
		size_t *	size
	)

secrets.c の 88 行で定義されています。

参照先 TDB_DATA::dptr・TDB_DATA::dsize・secrets_init()・string_tdb_data()・tdb・tdb_fetch().

参照元 cm_get_ipc_userpass()・fetch_ldap_pw()・kerberos_secrets_fetch_des_salt()・kerberos_secrets_fetch_salting_principal()・secrets_fetch_afs_key()・secrets_fetch_domain_guid()・secrets_fetch_domain_sid()・secrets_fetch_generic()・secrets_fetch_ipc_userpass()・secrets_fetch_machine_password()・secrets_fetch_trust_account_password_legacy()・secrets_fetch_trusted_domain_password()・secrets_trusted_domains().

{
        TDB_DATA dbuf;
        secrets_init();
        if (!tdb)
                return NULL;
        dbuf = tdb_fetch(tdb, string_tdb_data(key));
        if (size)
                *size = dbuf.dsize;
        return dbuf.dptr;
}

BOOL secrets_store	(	const char *	key,
		const void *	data,
		size_t	size
	)

secrets.c の 102 行で定義されています。

参照先 make_tdb_data()・secrets_init()・string_tdb_data()・tdb・tdb_trans_store().

参照元 kerberos_secrets_store_des_salt()・kerberos_secrets_store_salting_principal()・secrets_store_afs_keyfile()・secrets_store_domain_guid()・secrets_store_domain_sid()・secrets_store_generic()・secrets_store_ldap_pw()・secrets_store_machine_password()・secrets_store_trusted_domain_password()・wbinfo_set_auth_user().

{
        secrets_init();
        if (!tdb)
                return False;
        return tdb_trans_store(tdb, string_tdb_data(key),
                               make_tdb_data((const char *)data, size),
                               TDB_REPLACE) == 0;
}

BOOL secrets_delete

(

const char *

key

)

secrets.c の 115 行で定義されています。

参照先 secrets_init()・string_tdb_data()・tdb・tdb_delete().

参照元 fetch_ldap_pw()・kerberos_secrets_store_des_salt()・kerberos_secrets_store_salting_principal()・trusted_domain_password_delete()・wbinfo_set_auth_user().

{
        secrets_init();
        if (!tdb)
                return False;
        return tdb_delete(tdb, string_tdb_data(key)) == 0;
}

BOOL secrets_store_domain_sid	(	const char *	domain,
		const DOM_SID *	sid
	)

secrets.c の 123 行で定義されています。

参照先 reset_global_sam_sid()・secrets_store()・strupper_m().

参照元 net_rpc_join_newstyle()・net_setdomainsid()・net_setlocalsid()・netdom_store_machine_account()・pdb_generate_sam_sid()・pdb_init_ldapsam()・rpc_getsid_internals()・rpc_oldjoin_internals().

{
        fstring key;
        BOOL ret;

        slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_SID, domain);
        strupper_m(key);
        ret = secrets_store(key, sid, sizeof(DOM_SID));

        /* Force a re-query, in case we modified our domain */
        if (ret)
                reset_global_sam_sid();
        return ret;
}

BOOL secrets_fetch_domain_sid	(	const char *	domain,
		DOM_SID *	sid
	)

secrets.c の 138 行で定義されています。

参照先 secrets_fetch()・size・strupper_m().

参照元 _lsa_query_info()・_samr_lookup_domain()・add_builtin_administrators()・construct_default_printer_sdb()・create_builtin_administrators()・create_builtin_users()・init_domain_list()・longvar_domainsid()・lookup_name()・net_getdomainsid()・net_getlocalsid()・nt_printing_getsec()・nt_token_check_domain_rid()・pdb_generate_sam_sid()・pdb_init_ldapsam().

{
        DOM_SID *dyn_sid;
        fstring key;
        size_t size = 0;

        slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_SID, domain);
        strupper_m(key);
        dyn_sid = (DOM_SID *)secrets_fetch(key, &size);

        if (dyn_sid == NULL)
                return False;

        if (size != sizeof(DOM_SID)) { 
                SAFE_FREE(dyn_sid);
                return False;
        }

        *sid = *dyn_sid;
        SAFE_FREE(dyn_sid);
        return True;
}

BOOL secrets_store_domain_guid	(	const char *	domain,
		struct GUID *	guid
	)

secrets.c の 161 行で定義されています。

参照先 secrets_store()・strupper_m().

参照元 secrets_fetch_domain_guid().

{
        fstring key;

        slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_DOMAIN_GUID, domain);
        strupper_m(key);
        return secrets_store(key, guid, sizeof(struct GUID));
}

BOOL secrets_fetch_domain_guid	(	const char *	domain,
		struct GUID *	guid
	)

secrets.c の 170 行で定義されています。

参照先 ROLE_DOMAIN_PDC・secrets_fetch()・secrets_store_domain_guid()・size・smb_uuid_generate_random()・strupper_m().

参照元 _lsa_query_info2()・fill_dsrole_dominfo_basic()・process_logon_packet().

{
        struct GUID *dyn_guid;
        fstring key;
        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 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 GUID)) { 
                DEBUG(1,("UUID size %d is wrong!\n", (int)size));
                SAFE_FREE(dyn_guid);
                return False;
        }

        *guid = *dyn_guid;
        SAFE_FREE(dyn_guid);
        return True;
}

static const char* trust_keystr

(

const char *

domain

)

[static]

Form a key for fetching the machine trust account password

引数:

domain

domain name

戻り値:

stored password's key

secrets.c の 211 行で定義されています。

参照先 strupper_m().

参照元 secrets_fetch_trust_account_password_legacy()・secrets_lock_trust_account_password().

{
        static fstring keystr;

        slprintf(keystr,sizeof(keystr)-1,"%s/%s", 
                 SECRETS_MACHINE_ACCT_PASS, domain);
        strupper_m(keystr);

        return keystr;
}

static char* trustdom_keystr

(

const char *

domain

)

[static]

Form a key for fetching a trusted domain password

引数:

domain

trusted domain name

戻り値:

stored password's key

secrets.c の 229 行で定義されています。

参照先 pstr_sprintf()・strupper_m().

参照元 secrets_fetch_trusted_domain_password()・secrets_store_trusted_domain_password()・trusted_domain_password_delete().

{
        static pstring keystr;

        pstr_sprintf(keystr, "%s/%s", SECRETS_DOMTRUST_ACCT_PASS, domain);
        strupper_m(keystr);
                
        return keystr;
}

BOOL secrets_lock_trust_account_password	(	const char *	domain,
		BOOL	dolock
	)

secrets.c の 243 行で定義されています。

参照先 tdb・tdb_lock_bystring()・tdb_unlock_bystring()・trust_keystr().

参照元 timeout_processing().

{
        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;
}

uint32 get_default_sec_channel

(

void

)

secrets.c の 259 行で定義されています。

参照先 ROLE_DOMAIN_BDC・ROLE_DOMAIN_PDC・SEC_CHAN_BDC・SEC_CHAN_WKSTA.

参照元 get_sec_channel_type()・secrets_fetch_machine_password()・secrets_fetch_trust_account_password_legacy().

{
        if (lp_server_role() == ROLE_DOMAIN_BDC || 
            lp_server_role() == ROLE_DOMAIN_PDC) {
                return SEC_CHAN_BDC;
        } else {
                return SEC_CHAN_WKSTA;
        }
}

BOOL secrets_fetch_trust_account_password_legacy	(	const char *	domain,
		uint8	ret_pwd[16],
		time_t *	pass_last_set_time,
		uint32 *	channel
	)

secrets.c の 276 行で定義されています。

参照先 get_default_sec_channel()・global_machine_password_needs_changing・secrets_fetch()・size・trust_keystr().

参照元 get_trust_pw_hash()・secrets_fetch_trust_account_password().

{
        struct machine_acct_pass *pass;
        size_t size = 0;

        if (!(pass = (struct machine_acct_pass *)secrets_fetch(
                      trust_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;
        }

        if (pass_last_set_time) {
                *pass_last_set_time = pass->mod_time;
        }
        memcpy(ret_pwd, pass->hash, 16);

        if (channel) {
                *channel = get_default_sec_channel();
        }

        /* 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 +
                                (time_t)lp_machine_password_timeout())) {
                        global_machine_password_needs_changing = True;
                }
        }

        SAFE_FREE(pass);
        return True;
}

BOOL secrets_fetch_trust_account_password	(	const char *	domain,
		uint8	ret_pwd[16],
		time_t *	pass_last_set_time,
		uint32 *	channel
	)

secrets.c の 322 行で定義されています。

参照先 E_md4hash()・secrets_fetch_machine_password()・secrets_fetch_trust_account_password_legacy().

参照元 do_cmd()・py_auth_smbd()・rpc_samdump_internals()・timeout_processing()・trust_pw_find_change_and_store_it().

{
        char *plaintext;

        plaintext = secrets_fetch_machine_password(domain, pass_last_set_time,
                                                   channel);
        if (plaintext) {
                DEBUG(4,("Using cleartext machine password\n"));
                E_md4hash(plaintext, ret_pwd);
                SAFE_FREE(plaintext);
                return True;
        }

        return secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
                                                           pass_last_set_time,
                                                           channel);
}

static size_t tdb_sid_pack	(	char *	pack_buf,
		int	bufsize,
		DOM_SID *	sid
	)			[static]

Pack SID passed by pointer

引数:

	pack_buf	pointer to buffer which is to be filled with packed data
	bufsize	size of packing buffer
	sid	pointer to sid to be packed

戻り値:

length of the packed representation of the whole structure

secrets.c の 351 行で定義されています。

参照先 dom_sid::id_auth・len・dom_sid::num_auths・dom_sid::sid_rev_num・dom_sid::sub_auths・tdb_pack().

参照元 tdb_trusted_dom_pass_pack().

{
        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;
}

static size_t tdb_sid_unpack	(	char *	pack_buf,
		int	bufsize,
		DOM_SID *	sid
	)			[static]

Unpack SID into a pointer

引数:

	pack_buf	pointer to buffer with packed representation
	bufsize	size of the buffer
	sid	pointer to sid structure to be filled with unpacked data

戻り値:

size of structure unpacked from buffer

secrets.c の 383 行で定義されています。

参照先 dom_sid::id_auth・len・dom_sid::num_auths・dom_sid::sid_rev_num・dom_sid::sub_auths・tdb_unpack().

参照元 tdb_trusted_dom_pass_unpack().

{
        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;
}

static size_t tdb_trusted_dom_pass_pack	(	char *	pack_buf,
		int	bufsize,
		TRUSTED_DOM_PASS *	pass
	)			[static]

Pack TRUSTED_DOM_PASS passed by pointer

引数:

	pack_buf	pointer to buffer which is to be filled with packed data
	bufsize	size of the buffer
	pass	pointer to trusted domain password to be packed

戻り値:

length of the packed representation of the whole structure

secrets.c の 414 行で定義されています。

参照先 trusted_dom_pass::domain_sid・len・trusted_dom_pass::mod_time・trusted_dom_pass::pass・trusted_dom_pass::pass_len・tdb_pack()・tdb_sid_pack()・trusted_dom_pass::uni_name・trusted_dom_pass::uni_name_len.

参照元 secrets_store_trusted_domain_password().

{
        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;
}

static size_t tdb_trusted_dom_pass_unpack	(	char *	pack_buf,
		int	bufsize,
		TRUSTED_DOM_PASS *	pass
	)			[static]

Unpack TRUSTED_DOM_PASS passed by pointer

引数:

	pack_buf	pointer to buffer with packed representation
	bufsize	size of the buffer
	pass	pointer to trusted domain password to be filled with unpacked data

戻り値:

size of structure unpacked from buffer

secrets.c の 448 行で定義されています。

参照先 trusted_dom_pass::domain_sid・len・trusted_dom_pass::mod_time・trusted_dom_pass::pass・trusted_dom_pass::pass_len・tdb_sid_unpack()・tdb_unpack()・trusted_dom_pass::uni_name・trusted_dom_pass::uni_name_len.

参照元 secrets_fetch_trusted_domain_password()・secrets_trusted_domains().

{
        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;     
}

BOOL secrets_fetch_trusted_domain_password	(	const char *	domain,
		char **	pwd,
		DOM_SID *	sid,
		time_t *	pass_last_set_time
	)

secrets.c の 476 行で定義されています。

参照先 trusted_dom_pass::pass・trusted_dom_pass::pass_len・secrets_fetch()・sid_copy()・size・tdb_trusted_dom_pass_unpack()・trustdom_keystr().

参照元 ads_cached_connection()・check_trustdomain_security()・get_trust_pw_clear()・is_trusted_domain()・lookup_name().

{
        struct trusted_dom_pass pass;
        size_t size = 0;
        
        /* unpacking structures */
        char* pass_buf;
        int pass_len = 0;

        ZERO_STRUCT(pass);

        /* fetching trusted domain password structure */
        if (!(pass_buf = (char *)secrets_fetch(trustdom_keystr(domain),
                                               &size))) {
                DEBUG(5, ("secrets_fetch failed!\n"));
                return False;
        }

        /* unpack trusted domain password */
        pass_len = tdb_trusted_dom_pass_unpack(pass_buf, size, &pass);
        SAFE_FREE(pass_buf);

        if (pass_len != size) {
                DEBUG(5, ("Invalid secrets size. Unpacked data doesn't match trusted_dom_pass structure.\n"));
                return False;
        }
                        
        /* the trust's password */      
        if (pwd) {
                *pwd = SMB_STRDUP(pass.pass);
                if (!*pwd) {
                        return False;
                }
        }

        /* last change time */
        if (pass_last_set_time) *pass_last_set_time = pass.mod_time;

        /* domain sid */
        if (sid != NULL) sid_copy(sid, &pass.domain_sid);
                
        return True;
}

BOOL secrets_store_trusted_domain_password	(	const char *	domain,
		const char *	pwd,
		const DOM_SID *	sid
	)

Routine to store the password for trusted domain

引数:

	domain	remote domain name
	pwd	plain text password of trust relationship
	sid	remote domain sid

戻り値:

true if succeeded

secrets.c の 531 行で定義されています。

参照先 trusted_dom_pass::pass・trusted_dom_pass::pass_len・push_ucs2_allocate()・secrets_store()・sid_copy()・strlen_w()・strncpy_w()・tdb_trusted_dom_pass_pack()・trustdom_keystr().

参照元 rpc_trustdom_establish()・vampire_trusted_domain().

{
        smb_ucs2_t *uni_dom_name;

        /* packing structures */
        pstring pass_buf;
        int pass_len = 0;
        int pass_buf_len = sizeof(pass_buf);
        
        struct trusted_dom_pass pass;
        ZERO_STRUCT(pass);

        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 = strlen_w(uni_dom_name)+1;
        SAFE_FREE(uni_dom_name);

        /* last change time */
        pass.mod_time = time(NULL);

        /* password of the trust */
        pass.pass_len = strlen(pwd);
        fstrcpy(pass.pass, pwd);

        /* domain sid */
        sid_copy(&pass.domain_sid, sid);
        
        pass_len = tdb_trusted_dom_pass_pack(pass_buf, pass_buf_len, &pass);

        return secrets_store(trustdom_keystr(domain), (void *)&pass_buf, pass_len);
}

BOOL secrets_store_machine_password	(	const char *	pass,
		const char *	domain,
		uint32	sec_channel
	)

secrets.c の 574 行で定義されています。

参照先 asprintf()・secrets_store()・strupper_m().

参照元 ads_change_trust_account_password()・net_changesecretpw()・net_rpc_join_newstyle()・netdom_store_machine_account()・trust_pw_change_and_store_it().

{
        char *key = NULL;
        BOOL ret;
        uint32 last_change_time;
        uint32 sec_channel_type;

        asprintf(&key, "%s/%s", SECRETS_MACHINE_PASSWORD, domain);
        if (!key) 
                return False;
        strupper_m(key);

        ret = secrets_store(key, pass, strlen(pass)+1);
        SAFE_FREE(key);

        if (!ret)
                return ret;
        
        asprintf(&key, "%s/%s", SECRETS_MACHINE_LAST_CHANGE_TIME, domain);
        if (!key) 
                return False;
        strupper_m(key);

        SIVAL(&last_change_time, 0, time(NULL));
        ret = secrets_store(key, &last_change_time, sizeof(last_change_time));
        SAFE_FREE(key);

        asprintf(&key, "%s/%s", SECRETS_MACHINE_SEC_CHANNEL_TYPE, domain);
        if (!key) 
                return False;
        strupper_m(key);

        SIVAL(&sec_channel_type, 0, sec_channel);
        ret = secrets_store(key, &sec_channel_type, sizeof(sec_channel_type));
        SAFE_FREE(key);

        return ret;
}

char* secrets_fetch_machine_password	(	const char *	domain,
		time_t *	pass_last_set_time,
		uint32 *	channel
	)

secrets.c の 618 行で定義されています。

参照先 asprintf()・get_default_sec_channel()・secrets_fetch()・size・strupper_m().

参照元 ad_idmap_cached_connection_internal()・ads_cached_connection()・ads_change_trust_account_password()・ads_keytab_add_entry()・ads_secrets_verify_ticket()・check_published_printers()・get_trust_pw_clear()・net_ads_join()・net_use_krb_machine_account()・net_use_machine_account()・nt_printer_publish()・popt_common_credentials_callback()・secrets_fetch_trust_account_password().

{
        char *key = NULL;
        char *ret;
        asprintf(&key, "%s/%s", SECRETS_MACHINE_PASSWORD, domain);
        strupper_m(key);
        ret = (char *)secrets_fetch(key, NULL);
        SAFE_FREE(key);
        
        if (pass_last_set_time) {
                size_t size;
                uint32 *last_set_time;
                asprintf(&key, "%s/%s", SECRETS_MACHINE_LAST_CHANGE_TIME, domain);
                strupper_m(key);
                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);
                } else {
                        *pass_last_set_time = 0;
                }
                SAFE_FREE(key);
        }
        
        if (channel) {
                size_t size;
                uint32 *channel_type;
                asprintf(&key, "%s/%s", SECRETS_MACHINE_SEC_CHANNEL_TYPE, domain);
                strupper_m(key);
                channel_type = (unsigned int *)secrets_fetch(key, &size);
                if (channel_type) {
                        *channel = IVAL(channel_type,0);
                        SAFE_FREE(channel_type);
                } else {
                        *channel = get_default_sec_channel();
                }
                SAFE_FREE(key);
        }
        
        return ret;
}

BOOL is_trusted_domain_situation

(

const char *

domain_name

)

secrets.c の 662 行で定義されています。

参照先 lp_workgroup()・strequal().

参照元 cm_prepare_connection()・get_trust_pw_clear()・get_trust_pw_hash().

{
        return IS_DC &&
                lp_allow_trusted_domains() &&
                !strequal(domain_name, lp_workgroup());
}

BOOL get_trust_pw_clear	(	const char *	domain,
		char **	ret_pwd,
		const char **	account_name,
		uint32 *	channel
	)

secrets.c の 675 行で定義されています。

参照先 global_myname・is_trusted_domain_situation()・lp_workgroup()・SEC_CHAN_DOMAIN・secrets_fetch_machine_password()・secrets_fetch_trusted_domain_password().

参照元 get_trust_creds()・get_trust_pw_hash().

{
        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_trusted_domain_situation(domain)) {
                if (!secrets_fetch_trusted_domain_password(domain, ret_pwd,
                                                           NULL, &last_set_time))
                {
                        DEBUG(0, ("get_trust_pw: could not fetch trust "
                                "account password for trusted domain %s\n",
                                domain));
                        return False;
                }

                if (channel != NULL) {
                        *channel = SEC_CHAN_DOMAIN;
                }

                if (account_name != NULL) {
                        *account_name = lp_workgroup();
                }

                return True;
        }

        /* Here we are a domain member server.  We can only be a member
           of one domain so ignore the request domain and assume our own */

        pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, 
                                             channel);

        if (pwd != NULL) {
                *ret_pwd = pwd;
                if (account_name != NULL) {
                        *account_name = global_myname();
                }

                return True;
        }

        DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
                  "account password for domain %s\n", domain));
        return False;
}

BOOL get_trust_pw_hash	(	const char *	domain,
		uint8	ret_pwd[16],
		const char **	account_name,
		uint32 *	channel
	)

secrets.c の 730 行で定義されています。

参照先 E_md4hash()・get_trust_pw_clear()・global_myname・is_trusted_domain_situation()・secrets_fetch_trust_account_password_legacy().

参照元 cm_connect_netlogon()・connect_to_domain_password_server()・get_schannel_session_key_common().

{
        char *pwd = NULL;
        time_t last_set_time;

        if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
                E_md4hash(pwd, ret_pwd);
                SAFE_FREE(pwd);
                return True;
        } else if (is_trusted_domain_situation(domain)) {
                return False;
        }

        /* as a fallback, try to get the hashed pwd directly from the tdb... */

        if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
                                                        &last_set_time,
                                                        channel))
        {
                if (account_name != NULL) {
                        *account_name = global_myname();
                }

                return True;
        }

        DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
                "password for domain %s\n", domain));
        return False;
}

BOOL trusted_domain_password_delete

(

const char *

domain

)

secrets.c の 766 行で定義されています。

参照先 secrets_delete()・trustdom_keystr().

参照元 rpc_trustdom_revoke().

{
        return secrets_delete(trustdom_keystr(domain));
}

BOOL secrets_store_ldap_pw	(	const char *	dn,
		char *	pw
	)

secrets.c の 771 行で定義されています。

参照先 asprintf()・secrets_store().

参照元 fetch_ldap_pw()・store_ldap_admin_pw().

{
        char *key = NULL;
        BOOL ret;
        
        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);
        
        SAFE_FREE(key);
        return ret;
}

BOOL fetch_ldap_pw	(	char **	dn,
		char **	pw
	)

secrets.c の 791 行で定義されています。

参照先 asprintf()・secrets_delete()・secrets_fetch()・secrets_store_ldap_pw()・size・smb_xstrdup().

参照元 get_credentials()・smbldap_connect_system().

{
        char *key = NULL;
        size_t size = 0;
        
        *dn = smb_xstrdup(lp_ldap_admin_dn());
        
        if (asprintf(&key, "%s/%s", SECRETS_LDAP_BIND_PW, *dn) < 0) {
                SAFE_FREE(*dn);
                DEBUG(0, ("fetch_ldap_pw: asprintf failed!\n"));
        }
        
        *pw=(char *)secrets_fetch(key, &size);
        SAFE_FREE(key);

        if (!size) {
                /* Upgrade 2.2 style entry */
                char *p;
                char* old_style_key = SMB_STRDUP(*dn);
                char *data;
                fstring old_style_pw;
                
                if (!old_style_key) {
                        DEBUG(0, ("fetch_ldap_pw: strdup failed!\n"));
                        return False;
                }

                for (p=old_style_key; *p; p++)
                        if (*p == ',') *p = '/';
        
                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);
                        SAFE_FREE(*dn);
                        return False;
                }

                size = MIN(size, sizeof(fstring)-1);
                strncpy(old_style_pw, data, size);
                old_style_pw[size] = 0;

                SAFE_FREE(data);

                if (!secrets_store_ldap_pw(*dn, old_style_pw)) {
                        DEBUG(0,("fetch_ldap_pw: ldap secret could not be upgraded!\n"));
                        SAFE_FREE(old_style_key);
                        SAFE_FREE(*dn);
                        return False;                   
                }
                if (!secrets_delete(old_style_key)) {
                        DEBUG(0,("fetch_ldap_pw: old ldap secret could not be deleted!\n"));
                }

                SAFE_FREE(old_style_key);

                *pw = smb_xstrdup(old_style_pw);                
        }
        
        return True;
}

NTSTATUS secrets_trusted_domains	(	TALLOC_CTX *	mem_ctx,
		uint32 *	num_domains,
		struct trustdom_info ***	domains
	)

Get trusted domains info from secrets.tdb.

secrets.c の 857 行で定義されています。

参照先 trusted_dom_pass::domain_sid・TDB_DATA::dptr・TDB_DATA::dsize・trustdom_info::name・keys_node::next・keys_node::node_key・dom_sid::num_auths・trusted_dom_pass::pass・pull_ucs2_talloc()・secrets_fetch()・secrets_init()・trustdom_info::sid・sid_copy()・sid_string_static()・size・talloc_asprintf()・talloc_strndup()・tdb・tdb_search_keys()・tdb_search_list_free()・tdb_trusted_dom_pass_unpack()・trusted_dom_pass::uni_name.

参照元 _lsa_enum_trust_dom()・lookup_as_domain()・sam_trusted_domains().

{
        TDB_LIST_NODE *keys, *k;
        char *pattern;
        TALLOC_CTX *tmp_ctx;

        if (!(tmp_ctx = talloc_new(mem_ctx))) {
                return NT_STATUS_NO_MEMORY;
        }

        if (!secrets_init()) return NT_STATUS_ACCESS_DENIED;
        
        /* generate searching pattern */
        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;
        }

        *num_domains = 0;

        /*
         * Make sure that a talloc context for the trustdom_info structs
         * exists
         */

        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);

        /* 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 = 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 = (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));
                        continue;
                }

                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;
                }
        }
        
        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 NT_STATUS_OK;
}

BOOL secrets_named_mutex	(	const char *	name,
		unsigned int	timeout
	)

secrets.c の 975 行で定義されています。

参照先 secrets_init()・tdb・tdb_lock_bystring_with_timeout().

参照元 cm_prepare_connection()・grab_server_mutex().

{
        int ret = 0;

        if (!secrets_init())
                return False;

        ret = tdb_lock_bystring_with_timeout(tdb, name, timeout);
        if (ret == 0)
                DEBUG(10,("secrets_named_mutex: got mutex for %s\n", name ));

        return (ret == 0);
}

void secrets_named_mutex_release

(

const char *

name

)

secrets.c の 993 行で定義されています。

参照先 tdb・tdb_unlock_bystring().

参照元 cm_prepare_connection()・release_server_mutex().

{
        tdb_unlock_bystring(tdb, name);
        DEBUG(10,("secrets_named_mutex: released mutex for %s\n", name ));
}

BOOL secrets_store_afs_keyfile	(	const char *	cell,
		const struct afs_keyfile *	keyfile
	)

secrets.c の 1003 行で定義されています。

参照先 afs_keyfile::nkeys・secrets_store().

参照元 net_afs_key().

{
        fstring key;

        if ((cell == NULL) || (keyfile == NULL))
                return False;

        if (ntohl(keyfile->nkeys) > SECRETS_AFS_MAXKEYS)
                return False;

        slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_AFS_KEYFILE, cell);
        return secrets_store(key, keyfile, sizeof(struct afs_keyfile));
}

BOOL secrets_fetch_afs_key	(	const char *	cell,
		struct afs_key *	result
	)

secrets.c の 1020 行で定義されています。

参照先 afs_keyfile::entry・afs_keyfile::nkeys・result・secrets_fetch()・size.

参照元 afs_createtoken().

{
        fstring key;
        struct afs_keyfile *keyfile;
        size_t size = 0;
        uint32 i;

        slprintf(key, sizeof(key)-1, "%s/%s", SECRETS_AFS_KEYFILE, cell);

        keyfile = (struct afs_keyfile *)secrets_fetch(key, &size);

        if (keyfile == NULL)
                return False;

        if (size != sizeof(struct afs_keyfile)) {
                SAFE_FREE(keyfile);
                return False;
        }

        i = ntohl(keyfile->nkeys);

        if (i > SECRETS_AFS_MAXKEYS) {
                SAFE_FREE(keyfile);
                return False;
        }

        *result = keyfile->entry[i-1];

        result->kvno = ntohl(result->kvno);

        return True;
}

void secrets_fetch_ipc_userpass	(	char **	username,
		char **	domain,
		char **	password
	)

secrets.c の 1064 行で定義されています。

参照先 lp_workgroup()・secrets_fetch()・smb_xstrdup().

参照元 wbinfo_get_auth_user().

{
        *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) {

                if (!*domain || !**domain)
                        *domain = smb_xstrdup(lp_workgroup());
                
                if (!*password || !**password)
                        *password = smb_xstrdup("");

                DEBUG(3, ("IPC$ connections done by user %s\\%s\n", 
                          *domain, *username));

        } else {
                DEBUG(3, ("IPC$ connections done anonymously\n"));
                *username = smb_xstrdup("");
                *domain = smb_xstrdup("");
                *password = smb_xstrdup("");
        }
}

static TDB_CONTEXT* open_schannel_session_store

(

TALLOC_CTX *

mem_ctx

)

[static]

secrets.c の 1093 行で定義されています。

参照先 TDB_DATA::dptr・TDB_DATA::dsize・talloc_asprintf()・tdb_close()・tdb_fetch_bystring()・tdb_open_log()・tdb_store_bystring().

参照元 secrets_restore_schannel_session_info()・secrets_store_schannel_session_info().

{
        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;
}

BOOL secrets_store_schannel_session_info	(	TALLOC_CTX *	mem_ctx,
		const char *	remote_machine,
		const struct dcinfo *	pdc
	)

secrets.c の 1146 行で定義されています。

参照先 dcinfo::clnt_chal・chal_info::data・dcinfo::domain・TDB_DATA::dptr・TDB_DATA::dsize・dcinfo::mach_acct・dcinfo::mach_pw・open_schannel_session_store()・dcinfo::remote_machine・dcinfo::seed_chal・dcinfo::sequence・dcinfo::sess_key・dcinfo::srv_chal・strupper_m()・talloc_asprintf()・tdb_close()・tdb_pack()・tdb_store_bystring().

参照元 _net_auth_2()・_net_sam_logoff()・_net_sam_logon_internal()・_net_srv_pwset().

{
        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;
}

BOOL secrets_restore_schannel_session_info	(	TALLOC_CTX *	mem_ctx,
		const char *	remote_machine,
		struct dcinfo **	ppdc
	)

secrets.c の 1213 行で定義されています。

参照先 dcinfo::authenticated・dcinfo::challenge_sent・dcinfo::clnt_chal・chal_info::data・dcinfo::domain・TDB_DATA::dptr・TDB_DATA::dsize・dcinfo::mach_acct・dcinfo::mach_pw・open_schannel_session_store()・dcinfo::remote_machine・dcinfo::seed_chal・dcinfo::sequence・dcinfo::sess_key・dcinfo::srv_chal・strupper_m()・talloc_asprintf()・tdb_close()・tdb_delete_bystring()・tdb_fetch_bystring()・tdb_unpack().

参照元 _net_sam_logoff()・_net_sam_logon_internal()・_net_srv_pwset()・pipe_schannel_auth_bind().

{
        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
	)

secrets.c の 1310 行で定義されています。

参照先 asprintf()・secrets_store().

参照元 idmap_store_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;
}

char* secrets_fetch_generic	(	const char *	owner,
		const char *	key
	)

secrets.c の 1330 行で定義されています。

参照先 asprintf()・secrets_fetch().

参照元 idmap_fetch_secret().

{
        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;
}

---

変数

TDB_CONTEXT* tdb [static]

secrets.c の 31 行で定義されています。

BOOL global_machine_password_needs_changing

secrets.c の 34 行で定義されています。

---