*/
#include "includes.h"
-#include "kdc.h"
-#include "ads.h"
-#include "hdb.h"
+#include "system/time.h"
+#include "dsdb/common/flags.h"
#include "lib/ldb/include/ldb.h"
#include "lib/ldb/include/ldb_errors.h"
-#include "system/iconv.h"
#include "librpc/gen_ndr/netlogon.h"
#include "auth/auth.h"
+#include "auth/credentials/credentials.h"
+#include "auth/auth_sam.h"
+#include "util/util_ldb.h"
+#include "dsdb/samdb/samdb.h"
+#include "librpc/ndr/libndr.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "librpc/gen_ndr/lsa.h"
+#include "libcli/auth/libcli_auth.h"
+#include "param/param.h"
+#include "events/events.h"
+#include "kdc/kdc.h"
+#include "lib/crypto/md4.h"
enum hdb_ldb_ent_type
{ HDB_LDB_ENT_TYPE_CLIENT, HDB_LDB_ENT_TYPE_SERVER,
- HDB_LDB_ENT_TYPE_KRBTGT, HDB_LDB_ENT_TYPE_ANY };
+ HDB_LDB_ENT_TYPE_KRBTGT, HDB_LDB_ENT_TYPE_TRUST, HDB_LDB_ENT_TYPE_ANY };
-static const char * const krb5_attrs[] = {
- "objectClass",
- "sAMAccountName",
-
- "userPrincipalName",
- "servicePrincipalName",
-
- "unicodePwd",
- "lmPwdHash",
- "ntPwdHash",
-
- "userAccountControl",
-
- "pwdLastSet",
- "accountExpires",
-
- "whenCreated",
- "whenChanged",
-
- "msDS-KeyVersionNumber",
- NULL
+enum trust_direction {
+ UNKNOWN = 0,
+ INBOUND = LSA_TRUST_DIRECTION_INBOUND,
+ OUTBOUND = LSA_TRUST_DIRECTION_OUTBOUND
};
static const char *realm_ref_attrs[] = {
NULL
};
+static const char *trust_attrs[] = {
+ "trustPartner",
+ "trustAuthIncoming",
+ "trustAuthOutgoing",
+ "whenCreated",
+ "msDS-SupportedEncryptionTypes",
+ "trustAttributes",
+ "trustDirection",
+ "trustType",
+ NULL
+};
+
static KerberosTime ldb_msg_find_krb5time_ldap_time(struct ldb_message *msg, const char *attr, KerberosTime default_val)
{
const char *tmp;
const char *gentime;
struct tm tm;
- gentime = ldb_msg_find_string(msg, attr, NULL);
+ gentime = ldb_msg_find_attr_as_string(msg, attr, NULL);
if (!gentime)
return default_val;
{
HDBFlags flags = int2HDBFlags(0);
- krb5_warnx(context, "uf2HDBFlags: userAccountControl: %08x\n", userAccountControl);
-
/* we don't allow kadmin deletes */
flags.immutable = 1;
}
*/
/*
- if (userAccountControl & UF_PASSWORD_CANT_CHANGE) {
- flags.invalid = 1;
- }
-*/
-/*
- if (userAccountControl & UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED) {
- flags.invalid = 1;
- }
+ UF_PASSWORD_CANT_CHANGE and UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED are irrelevent
*/
if (userAccountControl & UF_TEMP_DUPLICATE_ACCOUNT) {
flags.invalid = 1;
}
-/* UF_DONT_EXPIRE_PASSWD handled in LDB_message2entry() */
+/* UF_DONT_EXPIRE_PASSWD and UF_USE_DES_KEY_ONLY handled in LDB_message2entry() */
/*
if (userAccountControl & UF_MNS_LOGON_ACCOUNT) {
flags.proxiable = 1;
}
-/*
- if (userAccountControl & UF_SMARTCARD_USE_DES_KEY_ONLY) {
- flags.invalid = 1;
- }
-*/
if (userAccountControl & UF_DONT_REQUIRE_PREAUTH) {
flags.require_preauth = 0;
} else {
flags.require_preauth = 1;
}
-
- krb5_warnx(context, "uf2HDBFlags: HDBFlags: %08x\n", HDBFlags2int(flags));
-
return flags;
}
-static int hdb_ldb_destrutor(void *ptr)
+static int hdb_ldb_destrutor(struct hdb_ldb_private *private)
{
- struct hdb_ldb_private *private = ptr;
hdb_entry_ex *entry_ex = private->entry_ex;
free_hdb_entry(&entry_ex->entry);
return 0;
talloc_free(entry_ex->ctx);
}
+static krb5_error_code LDB_message2entry_keys(krb5_context context,
+ struct smb_iconv_convenience *iconv_convenience,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_message *msg,
+ unsigned int userAccountControl,
+ hdb_entry_ex *entry_ex)
+{
+ krb5_error_code ret = 0;
+ enum ndr_err_code ndr_err;
+ struct samr_Password *hash;
+ const struct ldb_val *sc_val;
+ struct supplementalCredentialsBlob scb;
+ struct supplementalCredentialsPackage *scpk = NULL;
+ bool newer_keys = false;
+ struct package_PrimaryKerberosBlob _pkb;
+ struct package_PrimaryKerberosCtr3 *pkb3 = NULL;
+ struct package_PrimaryKerberosCtr4 *pkb4 = NULL;
+ uint32_t i;
+ uint32_t allocated_keys = 0;
+
+ entry_ex->entry.keys.val = NULL;
+ entry_ex->entry.keys.len = 0;
+
+ entry_ex->entry.kvno = ldb_msg_find_attr_as_int(msg, "msDS-KeyVersionNumber", 0);
+
+ /* Get keys from the db */
+
+ hash = samdb_result_hash(mem_ctx, msg, "unicodePwd");
+ sc_val = ldb_msg_find_ldb_val(msg, "supplementalCredentials");
+
+ /* unicodePwd for enctype 0x17 (23) if present */
+ if (hash) {
+ allocated_keys++;
+ }
+
+ /* supplementalCredentials if present */
+ if (sc_val) {
+ ndr_err = ndr_pull_struct_blob_all(sc_val, mem_ctx, iconv_convenience, &scb,
+ (ndr_pull_flags_fn_t)ndr_pull_supplementalCredentialsBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ dump_data(0, sc_val->data, sc_val->length);
+ ret = EINVAL;
+ goto out;
+ }
+
+ if (scb.sub.signature != SUPPLEMENTAL_CREDENTIALS_SIGNATURE) {
+ NDR_PRINT_DEBUG(supplementalCredentialsBlob, &scb);
+ ret = EINVAL;
+ goto out;
+ }
+
+ for (i=0; i < scb.sub.num_packages; i++) {
+ if (strcmp("Primary:Kerberos-Newer-Keys", scb.sub.packages[i].name) == 0) {
+ scpk = &scb.sub.packages[i];
+ if (!scpk->data || !scpk->data[0]) {
+ scpk = NULL;
+ continue;
+ }
+ newer_keys = true;
+ break;
+ } else if (strcmp("Primary:Kerberos", scb.sub.packages[i].name) == 0) {
+ scpk = &scb.sub.packages[i];
+ if (!scpk->data || !scpk->data[0]) {
+ scpk = NULL;
+ }
+ /*
+ * we don't break here in hope to find
+ * a Kerberos-Newer-Keys package
+ */
+ }
+ }
+ }
+ /*
+ * Primary:Kerberos-Newer-Keys or Primary:Kerberos element
+ * of supplementalCredentials
+ */
+ if (scpk) {
+ DATA_BLOB blob;
+
+ blob = strhex_to_data_blob(scpk->data);
+ if (!blob.data) {
+ ret = ENOMEM;
+ goto out;
+ }
+ talloc_steal(mem_ctx, blob.data);
+
+ /* we cannot use ndr_pull_struct_blob_all() here, as w2k and w2k3 add padding bytes */
+ ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, iconv_convenience, &_pkb,
+ (ndr_pull_flags_fn_t)ndr_pull_package_PrimaryKerberosBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ krb5_set_error_string(context, "LDB_message2entry_keys: could not parse package_PrimaryKerberosBlob");
+ krb5_warnx(context, "LDB_message2entry_keys: could not parse package_PrimaryKerberosBlob");
+ ret = EINVAL;
+ goto out;
+ }
+
+ if (newer_keys && _pkb.version != 4) {
+ krb5_set_error_string(context, "LDB_message2entry_keys: Primary:Kerberos-Newer-Keys not version 4");
+ krb5_warnx(context, "LDB_message2entry_keys: Primary:Kerberos-Newer-Keys not version 4");
+ ret = EINVAL;
+ goto out;
+ }
+
+ if (!newer_keys && _pkb.version != 3) {
+ krb5_set_error_string(context, "LDB_message2entry_keys: could not parse Primary:Kerberos not version 3");
+ krb5_warnx(context, "LDB_message2entry_keys: could not parse Primary:Kerberos not version 3");
+ ret = EINVAL;
+ goto out;
+ }
+
+ if (_pkb.version == 4) {
+ pkb4 = &_pkb.ctr.ctr4;
+ allocated_keys += pkb4->num_keys;
+ } else if (_pkb.version == 3) {
+ pkb3 = &_pkb.ctr.ctr3;
+ allocated_keys += pkb3->num_keys;
+ }
+ }
+
+ if (allocated_keys == 0) {
+ /* oh, no password. Apparently (comment in
+ * hdb-ldap.c) this violates the ASN.1, but this
+ * allows an entry with no keys (yet). */
+ return 0;
+ }
+
+ /* allocate space to decode into */
+ entry_ex->entry.keys.len = 0;
+ entry_ex->entry.keys.val = calloc(allocated_keys, sizeof(Key));
+ if (entry_ex->entry.keys.val == NULL) {
+ ret = ENOMEM;
+ goto out;
+ }
+
+ if (hash && !(userAccountControl & UF_USE_DES_KEY_ONLY)) {
+ Key key;
+
+ key.mkvno = 0;
+ key.salt = NULL; /* No salt for this enc type */
+
+ ret = krb5_keyblock_init(context,
+ ENCTYPE_ARCFOUR_HMAC_MD5,
+ hash->hash, sizeof(hash->hash),
+ &key.key);
+ if (ret) {
+ goto out;
+ }
+
+ entry_ex->entry.keys.val[entry_ex->entry.keys.len] = key;
+ entry_ex->entry.keys.len++;
+ }
+
+ if (pkb4) {
+ for (i=0; i < pkb4->num_keys; i++) {
+ bool use = true;
+ Key key;
+
+ if (!pkb4->keys[i].value) continue;
+
+ if (userAccountControl & UF_USE_DES_KEY_ONLY) {
+ switch (pkb4->keys[i].keytype) {
+ case ENCTYPE_DES_CBC_CRC:
+ case ENCTYPE_DES_CBC_MD5:
+ break;
+ default:
+ use = false;
+ break;
+ }
+ }
+
+ if (!use) continue;
+
+ key.mkvno = 0;
+ key.salt = NULL;
+
+ if (pkb4->salt.string) {
+ DATA_BLOB salt;
+
+ salt = data_blob_string_const(pkb4->salt.string);
+
+ key.salt = calloc(1, sizeof(*key.salt));
+ if (key.salt == NULL) {
+ ret = ENOMEM;
+ goto out;
+ }
+
+ key.salt->type = hdb_pw_salt;
+
+ ret = krb5_data_copy(&key.salt->salt, salt.data, salt.length);
+ if (ret) {
+ free(key.salt);
+ key.salt = NULL;
+ goto out;
+ }
+ }
+
+ /* TODO: maybe pass the iteration_count somehow... */
+
+ ret = krb5_keyblock_init(context,
+ pkb4->keys[i].keytype,
+ pkb4->keys[i].value->data,
+ pkb4->keys[i].value->length,
+ &key.key);
+ if (ret) {
+ if (key.salt) {
+ free_Salt(key.salt);
+ free(key.salt);
+ key.salt = NULL;
+ }
+ goto out;
+ }
+
+ entry_ex->entry.keys.val[entry_ex->entry.keys.len] = key;
+ entry_ex->entry.keys.len++;
+ }
+ } else if (pkb3) {
+ for (i=0; i < pkb3->num_keys; i++) {
+ bool use = true;
+ Key key;
+
+ if (!pkb3->keys[i].value) continue;
+
+ if (userAccountControl & UF_USE_DES_KEY_ONLY) {
+ switch (pkb3->keys[i].keytype) {
+ case ENCTYPE_DES_CBC_CRC:
+ case ENCTYPE_DES_CBC_MD5:
+ break;
+ default:
+ use = false;
+ break;
+ }
+ }
+
+ if (!use) continue;
+
+ key.mkvno = 0;
+ key.salt = NULL;
+
+ if (pkb3->salt.string) {
+ DATA_BLOB salt;
+
+ salt = data_blob_string_const(pkb3->salt.string);
+
+ key.salt = calloc(1, sizeof(*key.salt));
+ if (key.salt == NULL) {
+ ret = ENOMEM;
+ goto out;
+ }
+
+ key.salt->type = hdb_pw_salt;
+
+ ret = krb5_data_copy(&key.salt->salt, salt.data, salt.length);
+ if (ret) {
+ free(key.salt);
+ key.salt = NULL;
+ goto out;
+ }
+ }
+
+ ret = krb5_keyblock_init(context,
+ pkb3->keys[i].keytype,
+ pkb3->keys[i].value->data,
+ pkb3->keys[i].value->length,
+ &key.key);
+ if (ret) {
+ if (key.salt) {
+ free_Salt(key.salt);
+ free(key.salt);
+ key.salt = NULL;
+ }
+ goto out;
+ }
+
+ entry_ex->entry.keys.val[entry_ex->entry.keys.len] = key;
+ entry_ex->entry.keys.len++;
+ }
+ }
+
+out:
+ if (ret != 0) {
+ entry_ex->entry.keys.len = 0;
+ }
+ if (entry_ex->entry.keys.len == 0 && entry_ex->entry.keys.val) {
+ free(entry_ex->entry.keys.val);
+ entry_ex->entry.keys.val = NULL;
+ }
+ return ret;
+}
+
/*
* Construct an hdb_entry from a directory entry.
*/
struct ldb_message *realm_ref_msg,
hdb_entry_ex *entry_ex)
{
- const char *unicodePwd;
unsigned int userAccountControl;
int i;
krb5_error_code ret = 0;
krb5_boolean is_computer = FALSE;
- const char *dnsdomain = ldb_msg_find_string(realm_ref_msg, "dnsRoot", NULL);
+ const char *dnsdomain = ldb_msg_find_attr_as_string(realm_ref_msg, "dnsRoot", NULL);
char *realm = strupper_talloc(mem_ctx, dnsdomain);
- struct ldb_dn *domain_dn = samdb_result_dn(mem_ctx, realm_ref_msg, "nCName", ldb_dn_new(mem_ctx));
+ struct loadparm_context *lp_ctx = ldb_get_opaque((struct ldb_context *)db->hdb_db, "loadparm");
+ struct ldb_dn *domain_dn = samdb_result_dn((struct ldb_context *)db->hdb_db,
+ mem_ctx,
+ realm_ref_msg,
+ "nCName",
+ ldb_dn_new(mem_ctx, (struct ldb_context *)db->hdb_db, NULL));
struct hdb_ldb_private *private;
NTTIME acct_expiry;
memset(entry_ex, 0, sizeof(*entry_ex));
- krb5_warnx(context, "LDB_message2entry:\n");
-
if (!realm) {
krb5_set_error_string(context, "talloc_strdup: out of memory");
ret = ENOMEM;
}
private->entry_ex = entry_ex;
+ private->iconv_convenience = lp_iconv_convenience(lp_ctx);
+ private->netbios_name = lp_netbios_name(lp_ctx);
talloc_set_destructor(private, hdb_ldb_destrutor);
entry_ex->ctx = private;
entry_ex->free_entry = hdb_ldb_free_entry;
- userAccountControl = ldb_msg_find_uint(msg, "userAccountControl", 0);
+ userAccountControl = ldb_msg_find_attr_as_uint(msg, "userAccountControl", 0);
entry_ex->entry.principal = malloc(sizeof(*(entry_ex->entry.principal)));
if (ent_type == HDB_LDB_ENT_TYPE_ANY && principal == NULL) {
- const char *samAccountName = ldb_msg_find_string(msg, "samAccountName", NULL);
+ const char *samAccountName = ldb_msg_find_attr_as_string(msg, "samAccountName", NULL);
if (!samAccountName) {
krb5_set_error_string(context, "LDB_message2entry: no samAccountName present");
ret = ENOENT;
goto out;
}
- samAccountName = ldb_msg_find_string(msg, "samAccountName", NULL);
+ samAccountName = ldb_msg_find_attr_as_string(msg, "samAccountName", NULL);
krb5_make_principal(context, &entry_ex->entry.principal, realm, samAccountName, NULL);
} else {
char *strdup_realm;
* replace the client principal's realm with the one
* we determine from our records */
- /* don't leak */
- free(*krb5_princ_realm(context, entry_ex->entry.principal));
-
/* this has to be with malloc() */
strdup_realm = strdup(realm);
if (!strdup_realm) {
krb5_clear_error_string(context);
goto out;
}
+ free(*krb5_princ_realm(context, entry_ex->entry.principal));
krb5_princ_set_realm(context, entry_ex->entry.principal, &strdup_realm);
}
- entry_ex->entry.kvno = ldb_msg_find_int(msg, "msDS-KeyVersionNumber", 0);
-
entry_ex->entry.flags = uf2HDBFlags(context, userAccountControl, ent_type);
if (ent_type == HDB_LDB_ENT_TYPE_KRBTGT) {
entry_ex->entry.flags.ok_as_delegate = 1;
}
- if (lp_parm_bool(-1, "kdc", "require spn for service", True)) {
- if (!is_computer && !ldb_msg_find_string(msg, "servicePrincipalName", NULL)) {
+ if (lp_parm_bool(lp_ctx, NULL, "kdc", "require spn for service", true)) {
+ if (!is_computer && !ldb_msg_find_attr_as_string(msg, "servicePrincipalName", NULL)) {
entry_ex->entry.flags.server = 0;
}
}
entry_ex->entry.valid_start = NULL;
- acct_expiry = samdb_result_nttime(msg, "accountExpires", (NTTIME)-1);
- if ((acct_expiry == (NTTIME)-1) ||
- (acct_expiry == 0x7FFFFFFFFFFFFFFFULL)) {
+ acct_expiry = samdb_result_account_expires(msg);
+ if (acct_expiry == 0x7FFFFFFFFFFFFFFFULL) {
entry_ex->entry.valid_end = NULL;
} else {
entry_ex->entry.valid_end = malloc(sizeof(*entry_ex->entry.valid_end));
*entry_ex->entry.valid_end = nt_time_to_unix(acct_expiry);
}
- if ((ent_type != HDB_LDB_ENT_TYPE_KRBTGT) && (!(userAccountControl & UF_DONT_EXPIRE_PASSWD))) {
+ if (ent_type != HDB_LDB_ENT_TYPE_KRBTGT) {
NTTIME must_change_time
= samdb_result_force_password_change((struct ldb_context *)db->hdb_db, mem_ctx,
- domain_dn, msg,
- "pwdLastSet");
- if (must_change_time != 0) {
+ domain_dn, msg);
+ if (must_change_time == 0x7FFFFFFFFFFFFFFFULL) {
+ entry_ex->entry.pw_end = NULL;
+ } else {
entry_ex->entry.pw_end = malloc(sizeof(*entry_ex->entry.pw_end));
if (entry_ex->entry.pw_end == NULL) {
ret = ENOMEM;
goto out;
}
*entry_ex->entry.pw_end = nt_time_to_unix(must_change_time);
- } else {
- entry_ex->entry.pw_end = NULL;
}
} else {
entry_ex->entry.pw_end = NULL;
entry_ex->entry.generation = NULL;
- /* create the keys and enctypes */
- unicodePwd = ldb_msg_find_string(msg, "unicodePwd", NULL);
- if (unicodePwd) {
- /* Many, many thanks to lukeh@padl.com for this
- * algorithm, described in his Nov 10 2004 mail to
- * samba-technical@samba.org */
-
- Principal *salt_principal;
- const char *user_principal_name = ldb_msg_find_string(msg, "userPrincipalName", NULL);
- if (is_computer) {
- /* Determine a salting principal */
- char *samAccountName = talloc_strdup(mem_ctx, ldb_msg_find_string(msg, "samAccountName", NULL));
- char *saltbody;
- if (!samAccountName) {
- krb5_set_error_string(context, "LDB_message2entry: no samAccountName present");
- ret = ENOENT;
- goto out;
- }
- if (samAccountName[strlen(samAccountName)-1] == '$') {
- samAccountName[strlen(samAccountName)-1] = '\0';
- }
- saltbody = talloc_asprintf(mem_ctx, "%s.%s", samAccountName, dnsdomain);
-
- ret = krb5_make_principal(context, &salt_principal, realm, "host", saltbody, NULL);
- } else if (user_principal_name) {
- char *p;
- user_principal_name = talloc_strdup(mem_ctx, user_principal_name);
- if (!user_principal_name) {
- ret = ENOMEM;
- goto out;
- } else {
- p = strchr(user_principal_name, '@');
- if (p) {
- p[0] = '\0';
- }
- ret = krb5_make_principal(context, &salt_principal, realm, user_principal_name, NULL);
- }
- } else {
- const char *samAccountName = ldb_msg_find_string(msg, "samAccountName", NULL);
- ret = krb5_make_principal(context, &salt_principal, realm, samAccountName, NULL);
- }
+ /* Get keys from the db */
+ ret = LDB_message2entry_keys(context, private->iconv_convenience, private, msg, userAccountControl, entry_ex);
+ if (ret) {
+ /* Could be bougus data in the entry, or out of memory */
+ goto out;
+ }
+
+ entry_ex->entry.etypes = malloc(sizeof(*(entry_ex->entry.etypes)));
+ if (entry_ex->entry.etypes == NULL) {
+ krb5_clear_error_string(context);
+ ret = ENOMEM;
+ goto out;
+ }
+ entry_ex->entry.etypes->len = entry_ex->entry.keys.len;
+ entry_ex->entry.etypes->val = calloc(entry_ex->entry.etypes->len, sizeof(int));
+ if (entry_ex->entry.etypes->val == NULL) {
+ krb5_clear_error_string(context);
+ ret = ENOMEM;
+ goto out;
+ }
+ for (i=0; i < entry_ex->entry.etypes->len; i++) {
+ entry_ex->entry.etypes->val[i] = entry_ex->entry.keys.val[i].key.keytype;
+ }
+
+
+ private->msg = talloc_steal(private, msg);
+ private->realm_ref_msg = talloc_steal(private, realm_ref_msg);
+ private->samdb = (struct ldb_context *)db->hdb_db;
+
+out:
+ if (ret != 0) {
+ /* This doesn't free ent itself, that is for the eventual caller to do */
+ hdb_free_entry(context, entry_ex);
+ } else {
+ talloc_steal(db, entry_ex->ctx);
+ }
+
+ return ret;
+}
+
+/*
+ * Construct an hdb_entry from a directory entry.
+ */
+static krb5_error_code LDB_trust_message2entry(krb5_context context, HDB *db,
+ struct loadparm_context *lp_ctx,
+ TALLOC_CTX *mem_ctx, krb5_const_principal principal,
+ enum trust_direction direction,
+ struct ldb_message *msg,
+ hdb_entry_ex *entry_ex)
+{
+
+ const char *dnsdomain;
+ char *realm;
+ char *strdup_realm;
+ DATA_BLOB password_utf16;
+ struct samr_Password password_hash;
+ const struct ldb_val *password_val;
+ struct trustAuthInOutBlob password_blob;
+ struct hdb_ldb_private *private;
+
+ enum ndr_err_code ndr_err;
+ int i, ret, trust_direction_flags;
- if (ret == 0) {
- size_t num_keys = entry_ex->entry.keys.len;
- /*
- * create keys from unicodePwd
- */
- ret = hdb_generate_key_set_password(context, salt_principal,
- unicodePwd,
- &entry_ex->entry.keys.val, &num_keys);
- entry_ex->entry.keys.len = num_keys;
- krb5_free_principal(context, salt_principal);
+ private = talloc(mem_ctx, struct hdb_ldb_private);
+ if (!private) {
+ ret = ENOMEM;
+ goto out;
+ }
+
+ private->entry_ex = entry_ex;
+ private->iconv_convenience = lp_iconv_convenience(lp_ctx);
+ private->netbios_name = lp_netbios_name(lp_ctx);
+
+ talloc_set_destructor(private, hdb_ldb_destrutor);
+
+ entry_ex->ctx = private;
+ entry_ex->free_entry = hdb_ldb_free_entry;
+
+ /* use 'whenCreated' */
+ entry_ex->entry.created_by.time = ldb_msg_find_krb5time_ldap_time(msg, "whenCreated", 0);
+ /* use '???' */
+ entry_ex->entry.created_by.principal = NULL;
+
+ entry_ex->entry.valid_start = NULL;
+
+ trust_direction_flags = ldb_msg_find_attr_as_int(msg, "trustDirection", 0);
+
+ if (direction == INBOUND) {
+ realm = strupper_talloc(mem_ctx, lp_realm(lp_ctx));
+ password_val = ldb_msg_find_ldb_val(msg, "trustAuthIncoming");
+
+ } else { /* OUTBOUND */
+ dnsdomain = ldb_msg_find_attr_as_string(msg, "trustPartner", NULL);
+ realm = strupper_talloc(mem_ctx, dnsdomain);
+ password_val = ldb_msg_find_ldb_val(msg, "trustAuthOutgoing");
+ }
+
+ if (!password_val || !(trust_direction_flags & direction)) {
+ ret = ENOENT;
+ goto out;
+ }
+
+ ndr_err = ndr_pull_struct_blob_all(password_val, mem_ctx, private->iconv_convenience, &password_blob,
+ (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ ret = EINVAL;
+ goto out;
+ }
+
+ for (i=0; i < password_blob.count; i++) {
+ if (password_blob.current->array[i].AuthType == TRUST_AUTH_TYPE_CLEAR) {
+ password_utf16 = data_blob_const(password_blob.current->array[i].AuthInfo.clear.password,
+ password_blob.current->array[i].AuthInfo.clear.size);
+ /* In the future, generate all sorts of
+ * hashes, but for now we can't safely convert
+ * the random strings windows uses into
+ * utf8 */
+
+ /* but as it is utf16 already, we can get the NT password/arcfour-hmac-md5 key */
+ mdfour(password_hash.hash, password_utf16.data, password_utf16.length);
+ break;
+ } else if (password_blob.current->array[i].AuthType == TRUST_AUTH_TYPE_NT4OWF) {
+ password_hash = password_blob.current->array[i].AuthInfo.nt4owf.password;
+ break;
}
+ }
+ entry_ex->entry.keys.len = 0;
+ entry_ex->entry.keys.val = NULL;
- if (ret != 0) {
- krb5_warnx(context, "could not generate keys from unicodePwd\n");
- entry_ex->entry.keys.val = NULL;
- entry_ex->entry.keys.len = 0;
+ if (i < password_blob.count) {
+ Key key;
+ /* Must have found a cleartext or MD4 password */
+ entry_ex->entry.keys.val = calloc(1, sizeof(Key));
+
+ key.mkvno = 0;
+ key.salt = NULL; /* No salt for this enc type */
+
+ if (entry_ex->entry.keys.val == NULL) {
+ ret = ENOMEM;
goto out;
}
- } else {
- const struct ldb_val *val;
- krb5_data keyvalue;
-
- val = ldb_msg_find_ldb_val(msg, "ntPwdHash");
- if (!val) {
- krb5_warnx(context, "neither type of key available for this account\n");
- entry_ex->entry.keys.val = NULL;
- entry_ex->entry.keys.len = 0;
- } else if (val->length < 16) {
- entry_ex->entry.keys.val = NULL;
- entry_ex->entry.keys.len = 0;
- krb5_warnx(context, "ntPwdHash has invalid length: %d\n",
- (int)val->length);
- } else {
- ret = krb5_data_alloc (&keyvalue, 16);
- if (ret) {
- krb5_clear_error_string(context);
- ret = ENOMEM;
- goto out;
- }
-
- memcpy(keyvalue.data, val->data, 16);
+
+ ret = krb5_keyblock_init(context,
+ ENCTYPE_ARCFOUR_HMAC_MD5,
+ password_hash.hash, sizeof(password_hash.hash),
+ &key.key);
+
+ entry_ex->entry.keys.val[entry_ex->entry.keys.len] = key;
+ entry_ex->entry.keys.len++;
+ }
+
+ ret = copy_Principal(principal, entry_ex->entry.principal);
+ if (ret) {
+ krb5_clear_error_string(context);
+ goto out;
+ }
+
+ /* While we have copied the client principal, tests
+ * show that Win2k3 returns the 'corrected' realm, not
+ * the client-specified realm. This code attempts to
+ * replace the client principal's realm with the one
+ * we determine from our records */
+
+ /* this has to be with malloc() */
+ strdup_realm = strdup(realm);
+ if (!strdup_realm) {
+ ret = ENOMEM;
+ krb5_clear_error_string(context);
+ goto out;
+ }
+ free(*krb5_princ_realm(context, entry_ex->entry.principal));
+ krb5_princ_set_realm(context, entry_ex->entry.principal, &strdup_realm);
+
+ entry_ex->entry.flags = int2HDBFlags(0);
+ entry_ex->entry.flags.immutable = 1;
+ entry_ex->entry.flags.invalid = 0;
+ entry_ex->entry.flags.server = 1;
+ entry_ex->entry.flags.require_preauth = 1;
- entry_ex->entry.keys.val = malloc(sizeof(entry_ex->entry.keys.val[0]));
- if (entry_ex->entry.keys.val == NULL) {
- krb5_data_free(&keyvalue);
- krb5_clear_error_string(context);
- ret = ENOMEM;
- goto out;
- }
-
- memset(&entry_ex->entry.keys.val[0], 0, sizeof(Key));
- entry_ex->entry.keys.val[0].key.keytype = ETYPE_ARCFOUR_HMAC_MD5;
- entry_ex->entry.keys.val[0].key.keyvalue = keyvalue;
+ entry_ex->entry.pw_end = NULL;
- entry_ex->entry.keys.len = 1;
- }
- }
+ entry_ex->entry.max_life = NULL;
+ entry_ex->entry.max_renew = NULL;
+
+ entry_ex->entry.generation = NULL;
entry_ex->entry.etypes = malloc(sizeof(*(entry_ex->entry.etypes)));
if (entry_ex->entry.etypes == NULL) {
private->msg = talloc_steal(private, msg);
- private->realm_ref_msg = talloc_steal(private, realm_ref_msg);
+ private->realm_ref_msg = NULL;
private->samdb = (struct ldb_context *)db->hdb_db;
- entry_ex->check_client_access = hdb_ldb_check_client_access;
- entry_ex->authz_data_tgs_req = hdb_ldb_authz_data_tgs_req;
- entry_ex->authz_data_as_req = hdb_ldb_authz_data_as_req;
-
out:
if (ret != 0) {
/* This doesn't free ent itself, that is for the eventual caller to do */
}
return ret;
+
}
static krb5_error_code LDB_lookup_principal(krb5_context context, struct ldb_context *ldb_ctx,
TALLOC_CTX *mem_ctx,
krb5_const_principal principal,
enum hdb_ldb_ent_type ent_type,
- const struct ldb_dn *realm_dn,
+ struct ldb_dn *realm_dn,
struct ldb_message ***pmsg)
{
krb5_error_code ret;
int lret;
char *filter = NULL;
- const char * const *princ_attrs = krb5_attrs;
+ const char * const *princ_attrs = user_attrs;
char *short_princ;
char *short_princ_talloc;
- char *realm_dn_str;
-
struct ldb_result *res = NULL;
- ret = krb5_unparse_name_norealm(context, principal, &short_princ);
+ ret = krb5_unparse_name_flags(context, principal, KRB5_PRINCIPAL_UNPARSE_NO_REALM, &short_princ);
if (ret != 0) {
krb5_set_error_string(context, "LDB_lookup_principal: could not parse principal");
short_princ_talloc = talloc_strdup(mem_ctx, short_princ);
free(short_princ);
- if (!short_princ || !short_princ_talloc) {
+ if (!short_princ_talloc) {
krb5_set_error_string(context, "LDB_lookup_principal: talloc_strdup() failed!");
return ENOMEM;
}
switch (ent_type) {
case HDB_LDB_ENT_TYPE_CLIENT:
- /* Can't happen */
- return EINVAL;
+ case HDB_LDB_ENT_TYPE_TRUST:
case HDB_LDB_ENT_TYPE_ANY:
/* Can't happen */
return EINVAL;
lret = ldb_search(ldb_ctx, realm_dn, LDB_SCOPE_SUBTREE, filter, princ_attrs, &res);
- realm_dn_str = ldb_dn_linearize(mem_ctx, realm_dn);
-
- if (lret != LDB_SUCCESS || res->count == 0) {
- krb5_warnx(context, "ldb_search: basedn: '%s' filter: '%s' failed: %s",
- realm_dn_str, filter, ldb_errstring(ldb_ctx));
- krb5_set_error_string(context, "ldb_search: basedn: '%s' filter: '%s' failed: %s",
- realm_dn_str, filter, ldb_errstring(ldb_ctx));
+ if (lret != LDB_SUCCESS) {
+ DEBUG(3, ("Failed to search for %s: %s\n", filter, ldb_errstring(ldb_ctx)));
return HDB_ERR_NOENTRY;
- } else if (res->count > 1) {
- krb5_warnx(context, "ldb_search: basedn: '%s' filter: '%s' more than 1 entry: %d",
- realm_dn_str, filter, res->count);
- krb5_set_error_string(context, "ldb_search: basedn: '%s' filter: '%s' more than 1 entry: %d",
- realm_dn_str, filter, res->count);
+ } else if (res->count == 0 || res->count > 1) {
+ DEBUG(3, ("Failed find a single entry for %s: got %d\n", filter, res->count));
talloc_free(res);
return HDB_ERR_NOENTRY;
}
return 0;
}
-static krb5_error_code LDB_lookup_realm(krb5_context context, struct ldb_context *ldb_ctx,
+static krb5_error_code LDB_lookup_trust(krb5_context context, struct ldb_context *ldb_ctx,
TALLOC_CTX *mem_ctx,
const char *realm,
+ struct ldb_dn *realm_dn,
struct ldb_message ***pmsg)
{
- int ret;
- char *cross_ref_filter;
- struct ldb_result *cross_ref_res;
+ int lret;
+ char *filter = NULL;
+ const char * const *attrs = trust_attrs;
+
+ struct ldb_result *res = NULL;
+ filter = talloc_asprintf(mem_ctx, "(&(objectClass=trustedDomain)(|(flatname=%s)(trustPartner=%s)))", realm, realm);
- cross_ref_filter = talloc_asprintf(mem_ctx,
- "(&(&(|(&(dnsRoot=%s)(nETBIOSName=*))(nETBIOSName=%s))(objectclass=crossRef))(ncName=*))",
- realm, realm);
- if (!cross_ref_filter) {
- krb5_set_error_string(context, "asprintf: out of memory");
+ if (!filter) {
+ krb5_set_error_string(context, "talloc_asprintf: out of memory");
return ENOMEM;
}
- ret = ldb_search(ldb_ctx, NULL, LDB_SCOPE_SUBTREE, cross_ref_filter, realm_ref_attrs, &cross_ref_res);
+ lret = ldb_search(ldb_ctx, ldb_get_default_basedn(ldb_ctx), LDB_SCOPE_SUBTREE, filter, attrs, &res);
- if (ret != LDB_SUCCESS || cross_ref_res->count == 0) {
- krb5_warnx(context, "ldb_search: filter: '%s' failed: %s", cross_ref_filter, ldb_errstring(ldb_ctx));
- krb5_set_error_string(context, "ldb_search: filter: '%s' failed: %s", cross_ref_filter, ldb_errstring(ldb_ctx));
+ if (lret != LDB_SUCCESS) {
+ DEBUG(3, ("Failed to search for %s: %s\n", filter, ldb_errstring(ldb_ctx)));
+ return HDB_ERR_NOENTRY;
+ } else if (res->count == 0 || res->count > 1) {
+ DEBUG(3, ("Failed find a single entry for %s: got %d\n", filter, res->count));
+ talloc_free(res);
+ return HDB_ERR_NOENTRY;
+ }
+ talloc_steal(mem_ctx, res->msgs);
+ *pmsg = res->msgs;
+ talloc_free(res);
+ return 0;
+}
+static krb5_error_code LDB_lookup_realm(krb5_context context, struct ldb_context *ldb_ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *realm,
+ struct ldb_message ***pmsg)
+{
+ int ret;
+ struct ldb_result *cross_ref_res;
+ struct ldb_dn *partitions_basedn = samdb_partitions_dn(ldb_ctx, mem_ctx);
+
+ ret = ldb_search_exp_fmt(ldb_ctx, mem_ctx, &cross_ref_res,
+ partitions_basedn, LDB_SCOPE_SUBTREE, realm_ref_attrs,
+ "(&(&(|(&(dnsRoot=%s)(nETBIOSName=*))(nETBIOSName=%s))(objectclass=crossRef))(ncName=*))",
+ realm, realm);
+
+ if (ret != LDB_SUCCESS) {
+ DEBUG(3, ("Failed to search to lookup realm(%s): %s\n", realm, ldb_errstring(ldb_ctx)));
talloc_free(cross_ref_res);
return HDB_ERR_NOENTRY;
- } else if (cross_ref_res->count > 1) {
- krb5_warnx(context, "ldb_search: filter: '%s' more than 1 entry: %d", cross_ref_filter, cross_ref_res->count);
- krb5_set_error_string(context, "ldb_search: filter: '%s' more than 1 entry: %d", cross_ref_filter, cross_ref_res->count);
-
+ } else if (cross_ref_res->count == 0 || cross_ref_res->count > 1) {
+ DEBUG(3, ("Failed find a single entry for realm %s: got %d\n", realm, cross_ref_res->count));
talloc_free(cross_ref_res);
return HDB_ERR_NOENTRY;
}
if (pmsg) {
- *pmsg = talloc_steal(mem_ctx, cross_ref_res->msgs);
- } else {
- talloc_free(cross_ref_res);
+ *pmsg = cross_ref_res->msgs;
+ talloc_steal(mem_ctx, cross_ref_res->msgs);
}
+ talloc_free(cross_ref_res);
return 0;
}
return HDB_ERR_DB_INUSE;
}
-static krb5_error_code LDB_fetch(krb5_context context, HDB *db, unsigned flags,
- krb5_const_principal principal,
- enum hdb_ent_type ent_type,
- hdb_entry_ex *entry_ex)
-{
+static krb5_error_code LDB_fetch_client(krb5_context context, HDB *db,
+ TALLOC_CTX *mem_ctx,
+ krb5_const_principal principal,
+ unsigned flags,
+ hdb_entry_ex *entry_ex) {
+ NTSTATUS nt_status;
+ char *principal_string;
+ krb5_error_code ret;
struct ldb_message **msg = NULL;
struct ldb_message **realm_ref_msg = NULL;
- struct ldb_message **realm_fixed_msg = NULL;
- enum hdb_ldb_ent_type ldb_ent_type;
- krb5_error_code ret;
- const char *realm;
- const struct ldb_dn *realm_dn;
- TALLOC_CTX *mem_ctx = talloc_named(db, 0, "LDB_fetch context");
-
- if (!mem_ctx) {
- krb5_set_error_string(context, "LDB_fetch: talloc_named() failed!");
+ ret = krb5_unparse_name(context, principal, &principal_string);
+
+ if (ret != 0) {
+ return ret;
+ }
+
+ nt_status = sam_get_results_principal((struct ldb_context *)db->hdb_db,
+ mem_ctx, principal_string,
+ &msg, &realm_ref_msg);
+ free(principal_string);
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
+ return HDB_ERR_NOENTRY;
+ } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MEMORY)) {
return ENOMEM;
+ } else if (!NT_STATUS_IS_OK(nt_status)) {
+ return EINVAL;
}
+
+ ret = LDB_message2entry(context, db, mem_ctx,
+ principal, HDB_LDB_ENT_TYPE_CLIENT,
+ msg[0], realm_ref_msg[0], entry_ex);
+ return ret;
+}
- switch (ent_type) {
- case HDB_ENT_TYPE_CLIENT:
- {
- NTSTATUS nt_status;
- char *principal_string;
- ldb_ent_type = HDB_LDB_ENT_TYPE_CLIENT;
+static krb5_error_code LDB_fetch_krbtgt(krb5_context context, HDB *db,
+ TALLOC_CTX *mem_ctx,
+ krb5_const_principal principal,
+ unsigned flags,
+ hdb_entry_ex *entry_ex)
+{
+ krb5_error_code ret;
+ struct ldb_message **msg = NULL;
+ struct ldb_message **realm_ref_msg_1 = NULL;
+ struct ldb_message **realm_ref_msg_2 = NULL;
+ struct ldb_dn *realm_dn;
+ const char *realm;
- ret = krb5_unparse_name(context, principal, &principal_string);
+ krb5_principal alloc_principal = NULL;
+ if (principal->name.name_string.len != 2
+ || (strcmp(principal->name.name_string.val[0], KRB5_TGS_NAME) != 0)) {
+ /* Not a krbtgt */
+ return HDB_ERR_NOENTRY;
+ }
+
+ /* krbtgt case. Either us or a trusted realm */
+
+ if ((LDB_lookup_realm(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx, principal->realm, &realm_ref_msg_1) == 0)
+ && (LDB_lookup_realm(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx, principal->name.name_string.val[1], &realm_ref_msg_2) == 0)
+ && (ldb_dn_compare(realm_ref_msg_1[0]->dn, realm_ref_msg_1[0]->dn) == 0)) {
+ /* us */
+ /* Cludge, cludge cludge. If the realm part of krbtgt/realm,
+ * is in our db, then direct the caller at our primary
+ * krbtgt */
+
+ const char *dnsdomain = ldb_msg_find_attr_as_string(realm_ref_msg_1[0], "dnsRoot", NULL);
+ char *realm_fixed = strupper_talloc(mem_ctx, dnsdomain);
+ if (!realm_fixed) {
+ krb5_set_error_string(context, "strupper_talloc: out of memory");
+ return ENOMEM;
+ }
+
+ ret = krb5_copy_principal(context, principal, &alloc_principal);
+ if (ret) {
+ return ret;
+ }
+
+ free(alloc_principal->name.name_string.val[1]);
+ alloc_principal->name.name_string.val[1] = strdup(realm_fixed);
+ talloc_free(realm_fixed);
+ if (!alloc_principal->name.name_string.val[1]) {
+ krb5_set_error_string(context, "LDB_fetch: strdup() failed!");
+ return ENOMEM;
+ }
+ principal = alloc_principal;
+ realm_dn = samdb_result_dn((struct ldb_context *)db->hdb_db, mem_ctx, realm_ref_msg_1[0], "nCName", NULL);
+
+ ret = LDB_lookup_principal(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx,
+ principal, HDB_LDB_ENT_TYPE_KRBTGT, realm_dn, &msg);
if (ret != 0) {
- talloc_free(mem_ctx);
+ krb5_warnx(context, "LDB_fetch: could not find principal in DB");
+ krb5_set_error_string(context, "LDB_fetch: could not find principal in DB");
return ret;
}
-
- nt_status = sam_get_results_principal((struct ldb_context *)db->hdb_db,
- mem_ctx, principal_string,
- &msg, &realm_ref_msg);
- free(principal_string);
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MEMORY)) {
- talloc_free(mem_ctx);
- return ENOMEM;
- } else if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return EINVAL;
+
+ ret = LDB_message2entry(context, db, mem_ctx,
+ principal, HDB_LDB_ENT_TYPE_KRBTGT,
+ msg[0], realm_ref_msg_1[0], entry_ex);
+ if (ret != 0) {
+ krb5_warnx(context, "LDB_fetch: message2entry failed");
}
+ return ret;
- ret = LDB_message2entry(context, db, mem_ctx,
- principal, ldb_ent_type,
- msg[0], realm_ref_msg[0], entry_ex);
+ } else {
+ enum trust_direction direction = UNKNOWN;
- talloc_free(mem_ctx);
- return ret;
- }
- case HDB_ENT_TYPE_SERVER:
- if (principal->name.name_string.len == 2
- && (strcmp(principal->name.name_string.val[0], KRB5_TGS_NAME) == 0)) {
- /* krbtgt case. Either us or a trusted realm */
- if ((LDB_lookup_realm(context, (struct ldb_context *)db->hdb_db,
- mem_ctx, principal->name.name_string.val[1], &realm_fixed_msg) == 0)) {
- /* us */
- /* Cludge, cludge cludge. If the realm part of krbtgt/realm,
- * is in our db, then direct the caller at our primary
- * krgtgt */
-
- const char *dnsdomain = ldb_msg_find_string(realm_fixed_msg[0], "dnsRoot", NULL);
- char *realm_fixed = strupper_talloc(mem_ctx, dnsdomain);
- if (!realm_fixed) {
- krb5_set_error_string(context, "strupper_talloc: out of memory");
- talloc_free(mem_ctx);
- return ENOMEM;
- }
-
- free(principal->name.name_string.val[1]);
- principal->name.name_string.val[1] = strdup(realm_fixed);
- talloc_free(realm_fixed);
- if (!principal->name.name_string.val[1]) {
- krb5_set_error_string(context, "LDB_fetch: strdup() failed!");
- talloc_free(mem_ctx);
- return ENOMEM;
- }
- ldb_ent_type = HDB_LDB_ENT_TYPE_KRBTGT;
- break;
- } else {
- /* we should lookup trusted domains */
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- }
+ struct loadparm_context *lp_ctx = talloc_get_type(ldb_get_opaque(db->hdb_db, "loadparm"), struct loadparm_context);
+ /* Either an inbound or outbound trust */
- } else if (principal->name.name_string.len >= 2) {
- /* 'normal server' case */
- int ldb_ret;
- NTSTATUS nt_status;
- struct ldb_dn *user_dn, *domain_dn;
- char *principal_string;
- ldb_ent_type = HDB_LDB_ENT_TYPE_SERVER;
-
- ret = krb5_unparse_name_norealm(context, principal, &principal_string);
-
- if (ret != 0) {
- talloc_free(mem_ctx);
- return ret;
- }
-
- /* At this point we may find the host is known to be
- * in a different realm, so we should generate a
- * referral instead */
- nt_status = crack_service_principal_name((struct ldb_context *)db->hdb_db,
- mem_ctx, principal_string,
- &user_dn, &domain_dn);
- free(principal_string);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- }
-
- ldb_ret = gendb_search_dn((struct ldb_context *)db->hdb_db,
- mem_ctx, user_dn, &msg, krb5_attrs);
-
- if (ldb_ret != 1) {
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- }
-
- ldb_ret = gendb_search((struct ldb_context *)db->hdb_db,
- mem_ctx, NULL, &realm_ref_msg, realm_ref_attrs,
- "ncName=%s", ldb_dn_linearize(mem_ctx, domain_dn));
-
- if (ldb_ret != 1) {
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- }
+ if (strcasecmp(lp_realm(lp_ctx), principal->realm) == 0) {
+ /* look for inbound trust */
+ direction = INBOUND;
+ realm = principal->name.name_string.val[1];
+ }
+
+ if (strcasecmp(lp_realm(lp_ctx), principal->name.name_string.val[1]) == 0) {
+ /* look for outbound trust */
+ direction = OUTBOUND;
+ realm = principal->realm;
+ }
- ret = LDB_message2entry(context, db, mem_ctx,
- principal, ldb_ent_type,
- msg[0], realm_ref_msg[0], entry_ex);
- talloc_free(mem_ctx);
+ /* Trusted domains are under CN=system */
+
+ ret = LDB_lookup_trust(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx,
+ realm, realm_dn, &msg);
+
+ if (ret != 0) {
+ krb5_warnx(context, "LDB_fetch: could not find principal in DB");
+ krb5_set_error_string(context, "LDB_fetch: could not find principal in DB");
return ret;
-
- } else {
- ldb_ent_type = HDB_LDB_ENT_TYPE_SERVER;
- /* server as client principal case, but we must not lookup userPrincipalNames */
- break;
}
- case HDB_ENT_TYPE_ANY:
- krb5_warnx(context, "LDB_fetch: ENT_TYPE_ANY is not valid in hdb-ldb!");
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
- default:
- krb5_warnx(context, "LDB_fetch: invalid ent_type specified!");
- talloc_free(mem_ctx);
+
+ ret = LDB_trust_message2entry(context, db, lp_ctx, mem_ctx,
+ principal, direction,
+ msg[0], entry_ex);
+ if (ret != 0) {
+ krb5_warnx(context, "LDB_fetch: message2entry failed");
+ }
+ return ret;
+
+
+ /* we should lookup trusted domains */
return HDB_ERR_NOENTRY;
}
+}
+
+static krb5_error_code LDB_fetch_server(krb5_context context, HDB *db,
+ TALLOC_CTX *mem_ctx,
+ krb5_const_principal principal,
+ unsigned flags,
+ hdb_entry_ex *entry_ex)
+{
+ krb5_error_code ret;
+ const char *realm;
+ struct ldb_message **msg = NULL;
+ struct ldb_message **realm_ref_msg = NULL;
+ struct ldb_dn *partitions_basedn = samdb_partitions_dn(db->hdb_db, mem_ctx);
+ if (principal->name.name_string.len >= 2) {
+ /* 'normal server' case */
+ int ldb_ret;
+ NTSTATUS nt_status;
+ struct ldb_dn *user_dn, *domain_dn;
+ char *principal_string;
+
+ ret = krb5_unparse_name_flags(context, principal,
+ KRB5_PRINCIPAL_UNPARSE_NO_REALM,
+ &principal_string);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* At this point we may find the host is known to be
+ * in a different realm, so we should generate a
+ * referral instead */
+ nt_status = crack_service_principal_name((struct ldb_context *)db->hdb_db,
+ mem_ctx, principal_string,
+ &user_dn, &domain_dn);
+ free(principal_string);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return HDB_ERR_NOENTRY;
+ }
+
+ ldb_ret = gendb_search_dn((struct ldb_context *)db->hdb_db,
+ mem_ctx, user_dn, &msg, user_attrs);
+
+ if (ldb_ret != 1) {
+ return HDB_ERR_NOENTRY;
+ }
+
+ ldb_ret = gendb_search((struct ldb_context *)db->hdb_db,
+ mem_ctx, partitions_basedn, &realm_ref_msg, realm_ref_attrs,
+ "ncName=%s", ldb_dn_get_linearized(domain_dn));
+
+ if (ldb_ret != 1) {
+ return HDB_ERR_NOENTRY;
+ }
+
+ } else {
+ struct ldb_dn *realm_dn;
+ /* server as client principal case, but we must not lookup userPrincipalNames */
- realm = krb5_principal_get_realm(context, principal);
+ realm = krb5_principal_get_realm(context, principal);
+
+ ret = LDB_lookup_realm(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx, realm, &realm_ref_msg);
+ if (ret != 0) {
+ return HDB_ERR_NOENTRY;
+ }
+
+ realm_dn = samdb_result_dn((struct ldb_context *)db->hdb_db, mem_ctx, realm_ref_msg[0], "nCName", NULL);
+
+ ret = LDB_lookup_principal(context, (struct ldb_context *)db->hdb_db,
+ mem_ctx,
+ principal, HDB_LDB_ENT_TYPE_SERVER, realm_dn, &msg);
+
+ if (ret != 0) {
+ return ret;
+ }
+ }
- ret = LDB_lookup_realm(context, (struct ldb_context *)db->hdb_db,
- mem_ctx, realm, &realm_ref_msg);
+ ret = LDB_message2entry(context, db, mem_ctx,
+ principal, HDB_LDB_ENT_TYPE_SERVER,
+ msg[0], realm_ref_msg[0], entry_ex);
if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: could not find realm");
- talloc_free(mem_ctx);
- return HDB_ERR_NOENTRY;
+ krb5_warnx(context, "LDB_fetch: message2entry failed");
}
- realm_dn = samdb_result_dn(mem_ctx, realm_ref_msg[0], "nCName", NULL);
+ return ret;
+}
+
+static krb5_error_code LDB_fetch(krb5_context context, HDB *db,
+ krb5_const_principal principal,
+ unsigned flags,
+ hdb_entry_ex *entry_ex)
+{
+ krb5_error_code ret = HDB_ERR_NOENTRY;
- ret = LDB_lookup_principal(context, (struct ldb_context *)db->hdb_db,
- mem_ctx,
- principal, ldb_ent_type, realm_dn, &msg);
+ TALLOC_CTX *mem_ctx = talloc_named(db, 0, "LDB_fetch context");
- if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: could not find principal in DB");
- krb5_set_error_string(context, "LDB_fetch: could not find principal in DB");
- talloc_free(mem_ctx);
- return ret;
- } else {
- ret = LDB_message2entry(context, db, mem_ctx,
- principal, ldb_ent_type,
- msg[0], realm_ref_msg[0], entry_ex);
- if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: message2entry failed\n");
- }
+ if (!mem_ctx) {
+ krb5_set_error_string(context, "LDB_fetch: talloc_named() failed!");
+ return ENOMEM;
}
+ if (flags & HDB_F_GET_CLIENT) {
+ ret = LDB_fetch_client(context, db, mem_ctx, principal, flags, entry_ex);
+ if (ret != HDB_ERR_NOENTRY) goto done;
+ }
+ if (flags & HDB_F_GET_SERVER) {
+ /* krbtgt fits into this situation for trusted realms, and for resolving different versions of our own realm name */
+ ret = LDB_fetch_krbtgt(context, db, mem_ctx, principal, flags, entry_ex);
+ if (ret != HDB_ERR_NOENTRY) goto done;
+
+ /* We return 'no entry' if it does not start with krbtgt/, so move to the common case quickly */
+ ret = LDB_fetch_server(context, db, mem_ctx, principal, flags, entry_ex);
+ if (ret != HDB_ERR_NOENTRY) goto done;
+ }
+ if (flags & HDB_F_GET_KRBTGT) {
+ ret = LDB_fetch_krbtgt(context, db, mem_ctx, principal, flags, entry_ex);
+ if (ret != HDB_ERR_NOENTRY) goto done;
+ }
+
+done:
talloc_free(mem_ctx);
return ret;
}
return HDB_ERR_DB_INUSE;
}
-static krb5_error_code LDB_remove(krb5_context context, HDB *db, hdb_entry_ex *entry)
+static krb5_error_code LDB_remove(krb5_context context, HDB *db, krb5_const_principal principal)
{
return HDB_ERR_DB_INUSE;
}
static krb5_error_code LDB_seq(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
{
krb5_error_code ret;
- struct hdb_ldb_seq *priv = (struct hdb_ldb_seq *)db->hdb_openp;
+ struct hdb_ldb_seq *priv = (struct hdb_ldb_seq *)db->hdb_dbc;
TALLOC_CTX *mem_ctx;
hdb_entry_ex entry_ex;
memset(&entry_ex, '\0', sizeof(entry_ex));
if (ret != 0) {
talloc_free(priv);
- db->hdb_openp = NULL;
+ db->hdb_dbc = NULL;
} else {
talloc_free(mem_ctx);
}
hdb_entry_ex *entry)
{
struct ldb_context *ldb_ctx = (struct ldb_context *)db->hdb_db;
- struct hdb_ldb_seq *priv = (struct hdb_ldb_seq *)db->hdb_openp;
+ struct hdb_ldb_seq *priv = (struct hdb_ldb_seq *)db->hdb_dbc;
char *realm;
struct ldb_dn *realm_dn = NULL;
struct ldb_result *res = NULL;
if (priv) {
talloc_free(priv);
- db->hdb_openp = 0;
+ db->hdb_dbc = NULL;
}
priv = (struct hdb_ldb_seq *) talloc(db, struct hdb_ldb_seq);
return HDB_ERR_NOENTRY;
}
- realm_dn = samdb_result_dn(mem_ctx, realm_ref_msgs[0], "nCName", NULL);
+ realm_dn = samdb_result_dn((struct ldb_context *)db->hdb_db, mem_ctx, realm_ref_msgs[0], "nCName", NULL);
priv->realm_ref_msgs = talloc_steal(priv, realm_ref_msgs);
- krb5_warnx(context, "LDB_firstkey: realm ok\n");
-
lret = ldb_search(ldb_ctx, realm_dn,
LDB_SCOPE_SUBTREE, "(objectClass=user)",
- krb5_attrs, &res);
+ user_attrs, &res);
if (lret != LDB_SUCCESS) {
talloc_free(priv);
priv->count = res->count;
priv->msgs = talloc_steal(priv, res->msgs);
+ talloc_free(res);
- db->hdb_openp = priv;
+ db->hdb_dbc = priv;
ret = LDB_seq(context, db, flags, entry);
-
+
if (ret != 0) {
talloc_free(priv);
- db->hdb_openp = NULL;
+ db->hdb_dbc = NULL;
} else {
talloc_free(mem_ctx);
}
return 0;
}
-NTSTATUS hdb_ldb_create(TALLOC_CTX *mem_ctx,
- krb5_context context, struct HDB **db, const char *arg)
+/* This interface is to be called by the KDC, which is expecting Samba
+ * calling conventions. It is also called by a wrapper
+ * (hdb_ldb_create) from the kpasswdd -> krb5 -> keytab_hdb -> hdb
+ * code */
+
+NTSTATUS kdc_hdb_ldb_create(TALLOC_CTX *mem_ctx,
+ struct event_context *ev_ctx,
+ struct loadparm_context *lp_ctx,
+ krb5_context context, struct HDB **db, const char *arg)
{
NTSTATUS nt_status;
struct auth_session_info *session_info;
(*db)->hdb_master_key_set = 0;
(*db)->hdb_db = NULL;
- nt_status = auth_system_session_info(*db, &session_info);
+ nt_status = auth_system_session_info(*db, lp_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
* certificates, for now it will almost certainly be NTLMSSP
*/
- nt_status = cli_credentials_gensec_remove_oid(session_info->credentials,
- GENSEC_OID_KERBEROS5);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
+ cli_credentials_set_kerberos_state(session_info->credentials,
+ CRED_DONT_USE_KERBEROS);
/* Setup the link to LDB */
- (*db)->hdb_db = samdb_connect(*db, session_info);
+ (*db)->hdb_db = samdb_connect(*db, ev_ctx, lp_ctx, session_info);
if ((*db)->hdb_db == NULL) {
DEBUG(1, ("hdb_ldb_create: Cannot open samdb for KDC backend!"));
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
- (*db)->hdb_openp = 0;
+ (*db)->hdb_dbc = NULL;
(*db)->hdb_open = LDB_open;
(*db)->hdb_close = LDB_close;
(*db)->hdb_fetch = LDB_fetch;
return NT_STATUS_OK;
}
+
+krb5_error_code hdb_ldb_create(krb5_context context, struct HDB **db, const char *arg)
+{
+ NTSTATUS nt_status;
+ /* The global kdc_mem_ctx and kdc_lp_ctx, Disgusting, ugly hack, but it means one less private hook */
+ nt_status = kdc_hdb_ldb_create(kdc_mem_ctx, event_context_find(kdc_mem_ctx), kdc_lp_ctx,
+ context, db, arg);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ return 0;
+ }
+ return EINVAL;
+}
git.samba.org / kai / samba.git / blobdiff