*/
#include "includes.h"
-#include "system/time.h"
-#include "dsdb/common/flags.h"
-#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "librpc/gen_ndr/netlogon.h"
-#include "auth/auth.h"
-#include "auth/credentials/credentials.h"
+#include "kdc/kdc-glue.h"
+#include "kdc/db-glue.h"
#include "auth/auth_sam.h"
-#include "../lib/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"
+#include <ldb.h>
-enum hdb_ldb_ent_type
-{ HDB_SAMBA4_ENT_TYPE_CLIENT, HDB_SAMBA4_ENT_TYPE_SERVER,
- HDB_SAMBA4_ENT_TYPE_KRBTGT, HDB_SAMBA4_ENT_TYPE_TRUST, HDB_SAMBA4_ENT_TYPE_ANY };
-
-enum trust_direction {
- UNKNOWN = 0,
- INBOUND = LSA_TRUST_DIRECTION_INBOUND,
- OUTBOUND = LSA_TRUST_DIRECTION_OUTBOUND
-};
-
-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_attr_as_string(msg, attr, NULL);
- if (!gentime)
- return default_val;
-
- tmp = strptime(gentime, "%Y%m%d%H%M%SZ", &tm);
- if (tmp == NULL) {
- return default_val;
- }
-
- return timegm(&tm);
-}
-
-static HDBFlags uf2HDBFlags(krb5_context context, int userAccountControl, enum hdb_ldb_ent_type ent_type)
-{
- HDBFlags flags = int2HDBFlags(0);
-
- /* we don't allow kadmin deletes */
- flags.immutable = 1;
-
- /* mark the principal as invalid to start with */
- flags.invalid = 1;
-
- flags.renewable = 1;
-
- /* All accounts are servers, but this may be disabled again in the caller */
- flags.server = 1;
-
- /* Account types - clear the invalid bit if it turns out to be valid */
- if (userAccountControl & UF_NORMAL_ACCOUNT) {
- if (ent_type == HDB_SAMBA4_ENT_TYPE_CLIENT || ent_type == HDB_SAMBA4_ENT_TYPE_ANY) {
- flags.client = 1;
- }
- flags.invalid = 0;
- }
-
- if (userAccountControl & UF_INTERDOMAIN_TRUST_ACCOUNT) {
- if (ent_type == HDB_SAMBA4_ENT_TYPE_CLIENT || ent_type == HDB_SAMBA4_ENT_TYPE_ANY) {
- flags.client = 1;
- }
- flags.invalid = 0;
- }
- if (userAccountControl & UF_WORKSTATION_TRUST_ACCOUNT) {
- if (ent_type == HDB_SAMBA4_ENT_TYPE_CLIENT || ent_type == HDB_SAMBA4_ENT_TYPE_ANY) {
- flags.client = 1;
- }
- flags.invalid = 0;
- }
- if (userAccountControl & UF_SERVER_TRUST_ACCOUNT) {
- if (ent_type == HDB_SAMBA4_ENT_TYPE_CLIENT || ent_type == HDB_SAMBA4_ENT_TYPE_ANY) {
- flags.client = 1;
- }
- flags.invalid = 0;
- }
-
- /* Not permitted to act as a client if disabled */
- if (userAccountControl & UF_ACCOUNTDISABLE) {
- flags.client = 0;
- }
- if (userAccountControl & UF_LOCKOUT) {
- flags.invalid = 1;
- }
-/*
- if (userAccountControl & UF_PASSWORD_NOTREQD) {
- 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 and UF_USE_DES_KEY_ONLY handled in LDB_message2entry() */
-
-/*
- if (userAccountControl & UF_MNS_LOGON_ACCOUNT) {
- flags.invalid = 1;
- }
-*/
- if (userAccountControl & UF_SMARTCARD_REQUIRED) {
- flags.require_hwauth = 1;
- }
- if (userAccountControl & UF_TRUSTED_FOR_DELEGATION) {
- flags.ok_as_delegate = 1;
- }
- if (!(userAccountControl & UF_NOT_DELEGATED)) {
- flags.forwardable = 1;
- flags.proxiable = 1;
- }
-
- if (userAccountControl & UF_DONT_REQUIRE_PREAUTH) {
- flags.require_preauth = 0;
- } else {
- flags.require_preauth = 1;
-
- }
- return flags;
-}
-
-static int hdb_ldb_destructor(struct hdb_ldb_private *p)
-{
- hdb_entry_ex *entry_ex = p->entry_ex;
- free_hdb_entry(&entry_ex->entry);
- return 0;
-}
-
-static void hdb_ldb_free_entry(krb5_context context, hdb_entry_ex *entry_ex)
-{
- 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(mem_ctx, scpk->data);
- if (!blob.data) {
- ret = ENOMEM;
- goto out;
- }
-
- /* 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.
- */
-static krb5_error_code LDB_message2entry(krb5_context context, HDB *db,
- TALLOC_CTX *mem_ctx, krb5_const_principal principal,
- enum hdb_ldb_ent_type ent_type,
- struct ldb_dn *realm_dn,
- struct ldb_message *msg,
- hdb_entry_ex *entry_ex)
-{
- unsigned int userAccountControl;
- int i;
- krb5_error_code ret = 0;
- krb5_boolean is_computer = FALSE;
- struct loadparm_context *lp_ctx = ldb_get_opaque((struct ldb_context *)db->hdb_db, "loadparm");
- char *realm = strupper_talloc(mem_ctx, lp_realm(lp_ctx));
-
- struct hdb_ldb_private *p;
- NTTIME acct_expiry;
-
- struct ldb_message_element *objectclasses;
- struct ldb_val computer_val;
- const char *samAccountName = ldb_msg_find_attr_as_string(msg, "samAccountName", NULL);
- computer_val.data = discard_const_p(uint8_t,"computer");
- computer_val.length = strlen((const char *)computer_val.data);
-
- if (!samAccountName) {
- krb5_set_error_string(context, "LDB_message2entry: no samAccountName present");
- ret = ENOENT;
- goto out;
- }
-
- objectclasses = ldb_msg_find_element(msg, "objectClass");
-
- if (objectclasses && ldb_msg_find_val(objectclasses, &computer_val)) {
- is_computer = TRUE;
- }
-
- memset(entry_ex, 0, sizeof(*entry_ex));
-
- if (!realm) {
- krb5_set_error_string(context, "talloc_strdup: out of memory");
- ret = ENOMEM;
- goto out;
- }
-
- p = talloc(mem_ctx, struct hdb_ldb_private);
- if (!p) {
- ret = ENOMEM;
- goto out;
- }
-
- p->entry_ex = entry_ex;
- p->iconv_convenience = lp_iconv_convenience(lp_ctx);
- p->lp_ctx = lp_ctx;
- p->realm_dn = talloc_reference(p, realm_dn);
- if (!p->realm_dn) {
- ret = ENOMEM;
- goto out;
- }
-
- talloc_set_destructor(p, hdb_ldb_destructor);
-
- entry_ex->ctx = p;
- entry_ex->free_entry = hdb_ldb_free_entry;
-
- userAccountControl = ldb_msg_find_attr_as_uint(msg, "userAccountControl", 0);
-
-
- entry_ex->entry.principal = malloc(sizeof(*(entry_ex->entry.principal)));
- if (ent_type == HDB_SAMBA4_ENT_TYPE_ANY && principal == NULL) {
- krb5_make_principal(context, &entry_ex->entry.principal, realm, samAccountName, NULL);
- } else {
- char *strdup_realm;
- 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);
- }
-
- /* First try and figure out the flags based on the userAccountControl */
- entry_ex->entry.flags = uf2HDBFlags(context, userAccountControl, ent_type);
-
- if (ent_type == HDB_SAMBA4_ENT_TYPE_KRBTGT) {
- entry_ex->entry.flags.invalid = 0;
- entry_ex->entry.flags.server = 1;
- entry_ex->entry.flags.forwardable = 1;
- entry_ex->entry.flags.ok_as_delegate = 1;
- }
-
- /* Windows 2008 seems to enforce this (very sensible) rule by
- * default - don't allow offline attacks on a user's password
- * by asking for a ticket to them as a service (encrypted with
- * their probably patheticly insecure password) */
-
- 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;
- }
- }
-
- /* 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.modified_by = (Event *) malloc(sizeof(Event));
- if (entry_ex->entry.modified_by == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- ret = ENOMEM;
- goto out;
- }
-
- /* use 'whenChanged' */
- entry_ex->entry.modified_by->time = ldb_msg_find_krb5time_ldap_time(msg, "whenChanged", 0);
- /* use '???' */
- entry_ex->entry.modified_by->principal = NULL;
-
- entry_ex->entry.valid_start = NULL;
-
- /* The account/password expiry only applies when the account is used as a
- * client (ie password login), not when used as a server */
- if (ent_type == HDB_SAMBA4_ENT_TYPE_KRBTGT || ent_type == HDB_SAMBA4_ENT_TYPE_SERVER) {
- /* Make very well sure we don't use this for a client,
- * it could bypass the above password restrictions */
- entry_ex->entry.flags.client = 0;
- entry_ex->entry.valid_end = NULL;
- entry_ex->entry.pw_end = NULL;
-
- } else {
- NTTIME must_change_time
- = samdb_result_force_password_change((struct ldb_context *)db->hdb_db, mem_ctx,
- realm_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);
- }
-
- 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));
- if (entry_ex->entry.valid_end == NULL) {
- ret = ENOMEM;
- goto out;
- }
- *entry_ex->entry.valid_end = nt_time_to_unix(acct_expiry);
- }
- }
-
- entry_ex->entry.max_life = NULL;
-
- entry_ex->entry.max_renew = NULL;
-
- entry_ex->entry.generation = NULL;
-
- /* Get keys from the db */
- ret = LDB_message2entry_keys(context, p->iconv_convenience, p, 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;
- }
-
-
- p->msg = talloc_steal(p, msg);
- p->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_dn *realm_dn,
- struct ldb_message *msg,
- hdb_entry_ex *entry_ex)
+static krb5_error_code hdb_samba4_open(krb5_context context, HDB *db, int flags, mode_t mode)
{
-
- 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 *p;
-
- enum ndr_err_code ndr_err;
- int i, ret, trust_direction_flags;
-
- p = talloc(mem_ctx, struct hdb_ldb_private);
- if (!p) {
- ret = ENOMEM;
- goto out;
- }
-
- p->entry_ex = entry_ex;
- p->iconv_convenience = lp_iconv_convenience(lp_ctx);
- p->lp_ctx = lp_ctx;
- p->realm_dn = realm_dn;
-
- talloc_set_destructor(p, hdb_ldb_destructor);
-
- entry_ex->ctx = p;
- 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(password_val, mem_ctx, p->iconv_convenience, &password_blob,
- (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- ret = EINVAL;
- goto out;
- }
-
- entry_ex->entry.kvno = -1;
- for (i=0; i < password_blob.count; i++) {
- if (password_blob.current->array[i].AuthType == TRUST_AUTH_TYPE_VERSION) {
- entry_ex->entry.kvno = password_blob.current->array[i].AuthInfo.version.version;
- }
- }
-
- 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 (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;
- }
-
- 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++;
- }
-
- entry_ex->entry.principal = malloc(sizeof(*(entry_ex->entry.principal)));
-
- 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.pw_end = NULL;
-
- 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) {
- 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;
- }
-
-
- p->msg = talloc_steal(p, msg);
- p->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;
-
-}
-
-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,
- struct ldb_dn *realm_dn,
- struct ldb_message ***pmsg)
-{
- krb5_error_code ret;
- int lret;
- char *filter = NULL;
- const char * const *princ_attrs = user_attrs;
-
- char *short_princ;
- char *short_princ_talloc;
-
- struct ldb_result *res = NULL;
-
- 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");
- krb5_warnx(context, "LDB_lookup_principal: could not parse principal");
+ if (db->hdb_master_key_set) {
+ krb5_error_code ret = HDB_ERR_NOENTRY;
+ krb5_warnx(context, "hdb_samba4_open: use of a master key incompatible with LDB\n");
+ krb5_set_error_message(context, ret, "hdb_samba4_open: use of a master key incompatible with LDB\n");
return ret;
}
- short_princ_talloc = talloc_strdup(mem_ctx, short_princ);
- free(short_princ);
- if (!short_princ_talloc) {
- krb5_set_error_string(context, "LDB_lookup_principal: talloc_strdup() failed!");
- return ENOMEM;
- }
-
- switch (ent_type) {
- case HDB_SAMBA4_ENT_TYPE_CLIENT:
- case HDB_SAMBA4_ENT_TYPE_TRUST:
- case HDB_SAMBA4_ENT_TYPE_ANY:
- /* Can't happen */
- return EINVAL;
- case HDB_SAMBA4_ENT_TYPE_KRBTGT:
- filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
- KRB5_TGS_NAME);
- break;
- case HDB_SAMBA4_ENT_TYPE_SERVER:
- filter = talloc_asprintf(mem_ctx, "(&(objectClass=user)(samAccountName=%s))",
- short_princ_talloc);
- break;
- }
-
- if (!filter) {
- krb5_set_error_string(context, "talloc_asprintf: out of memory");
- return ENOMEM;
- }
-
- lret = ldb_search(ldb_ctx, mem_ctx, &res, realm_dn,
- LDB_SCOPE_SUBTREE, princ_attrs, "%s", filter);
- 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_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)
+static krb5_error_code hdb_samba4_close(krb5_context context, HDB *db)
{
- 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);
-
- if (!filter) {
- krb5_set_error_string(context, "talloc_asprintf: out of memory");
- return ENOMEM;
- }
-
- lret = ldb_search(ldb_ctx, mem_ctx, &res,
- ldb_get_default_basedn(ldb_ctx),
- LDB_SCOPE_SUBTREE, attrs, "%s", filter);
- 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_open(krb5_context context, HDB *db, int flags, mode_t mode)
+static krb5_error_code hdb_samba4_lock(krb5_context context, HDB *db, int operation)
{
- if (db->hdb_master_key_set) {
- krb5_warnx(context, "LDB_open: use of a master key incompatible with LDB\n");
- krb5_set_error_string(context, "LDB_open: use of a master key incompatible with LDB\n");
- return HDB_ERR_NOENTRY;
- }
-
return 0;
}
-static krb5_error_code LDB_close(krb5_context context, HDB *db)
+static krb5_error_code hdb_samba4_unlock(krb5_context context, HDB *db)
{
return 0;
}
-static krb5_error_code LDB_lock(krb5_context context, HDB *db, int operation)
+static krb5_error_code hdb_samba4_rename(krb5_context context, HDB *db, const char *new_name)
{
- return 0;
+ return HDB_ERR_DB_INUSE;
}
-static krb5_error_code LDB_unlock(krb5_context context, HDB *db)
+static krb5_error_code hdb_samba4_store(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
{
- return 0;
+ return HDB_ERR_DB_INUSE;
}
-static krb5_error_code LDB_rename(krb5_context context, HDB *db, const char *new_name)
+static krb5_error_code hdb_samba4_remove(krb5_context context, HDB *db, krb5_const_principal principal)
{
return HDB_ERR_DB_INUSE;
}
-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;
- struct ldb_dn *realm_dn;
- krb5_error_code ret;
- struct ldb_message **msg = NULL;
-
- 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,
- &realm_dn, &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_SAMBA4_ENT_TYPE_CLIENT,
- realm_dn, msg[0], entry_ex);
- return ret;
-}
-
-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)
+static krb5_error_code hdb_samba4_fetch_kvno(krb5_context context, HDB *db,
+ krb5_const_principal principal,
+ unsigned flags,
+ krb5_kvno kvno,
+ hdb_entry_ex *entry_ex)
{
- krb5_error_code ret;
- struct ldb_message **msg = NULL;
- struct ldb_dn *realm_dn = ldb_get_default_basedn(db->hdb_db);
- const char *realm;
- struct loadparm_context *lp_ctx = talloc_get_type(ldb_get_opaque(db->hdb_db, "loadparm"), struct loadparm_context);
+ struct samba_kdc_db_context *kdc_db_ctx;
- 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 (lp_is_my_domain_or_realm(lp_ctx, principal->realm)
- && lp_is_my_domain_or_realm(lp_ctx, principal->name.name_string.val[1])) {
- /* us */
- /* Cludge, cludge cludge. If the realm part of krbtgt/realm,
- * is in our db, then direct the caller at our primary
- * krbtgt */
-
- char *realm_fixed = strupper_talloc(mem_ctx, lp_realm(lp_ctx));
- 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;
-
- ret = LDB_lookup_principal(context, (struct ldb_context *)db->hdb_db,
- mem_ctx,
- principal, HDB_SAMBA4_ENT_TYPE_KRBTGT, 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;
- }
-
- ret = LDB_message2entry(context, db, mem_ctx,
- principal, HDB_SAMBA4_ENT_TYPE_KRBTGT,
- realm_dn, msg[0], entry_ex);
- if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: self krbtgt message2entry failed");
- }
- return ret;
-
- } else {
- enum trust_direction direction = UNKNOWN;
-
- /* Either an inbound or outbound trust */
-
- 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;
- }
-
- /* 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;
- }
-
- ret = LDB_trust_message2entry(context, db, lp_ctx, mem_ctx,
- principal, direction,
- realm_dn, msg[0], entry_ex);
- if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: trust_message2entry failed");
- }
- return ret;
-
-
- /* we should lookup trusted domains */
- return HDB_ERR_NOENTRY;
- }
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
+ return samba_kdc_fetch(context, kdc_db_ctx, principal, flags, kvno, entry_ex);
}
-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)
+static krb5_error_code hdb_samba4_firstkey(krb5_context context, HDB *db, unsigned flags,
+ hdb_entry_ex *entry)
{
- krb5_error_code ret;
- const char *realm;
- struct ldb_message **msg = NULL;
- struct ldb_dn *realm_dn;
- if (principal->name.name_string.len >= 2) {
- /* 'normal server' case */
- int ldb_ret;
- NTSTATUS nt_status;
- struct ldb_dn *user_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, &realm_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;
- }
-
- } else {
- /* server as client principal case, but we must not lookup userPrincipalNames */
- realm_dn = ldb_get_default_basedn((struct ldb_context *)db->hdb_db);
- realm = krb5_principal_get_realm(context, principal);
-
- /* Check if it is our realm, otherwise give referall */
+ struct samba_kdc_db_context *kdc_db_ctx;
- ret = LDB_lookup_principal(context, (struct ldb_context *)db->hdb_db,
- mem_ctx,
- principal, HDB_SAMBA4_ENT_TYPE_SERVER, realm_dn, &msg);
-
- if (ret != 0) {
- return ret;
- }
- }
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
- ret = LDB_message2entry(context, db, mem_ctx,
- principal, HDB_SAMBA4_ENT_TYPE_SERVER,
- realm_dn, msg[0], entry_ex);
- if (ret != 0) {
- krb5_warnx(context, "LDB_fetch: message2entry failed");
- }
-
- return ret;
+ return samba_kdc_firstkey(context, kdc_db_ctx, entry);
}
-
-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;
- TALLOC_CTX *mem_ctx = talloc_named(db, 0, "LDB_fetch context");
-
- 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;
- }
+static krb5_error_code hdb_samba4_nextkey(krb5_context context, HDB *db, unsigned flags,
+ hdb_entry_ex *entry)
+{
+ struct samba_kdc_db_context *kdc_db_ctx;
-done:
- talloc_free(mem_ctx);
- return ret;
-}
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
-static krb5_error_code LDB_store(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
-{
- return HDB_ERR_DB_INUSE;
+ return samba_kdc_nextkey(context, kdc_db_ctx, entry);
}
-static krb5_error_code LDB_remove(krb5_context context, HDB *db, krb5_const_principal principal)
+static krb5_error_code hdb_samba4_destroy(krb5_context context, HDB *db)
{
- return HDB_ERR_DB_INUSE;
+ talloc_free(db);
+ return 0;
}
-struct hdb_ldb_seq {
- struct ldb_context *ctx;
- int index;
- int count;
- struct ldb_message **msgs;
- struct ldb_dn *realm_dn;
-};
-
-static krb5_error_code LDB_seq(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
+static krb5_error_code
+hdb_samba4_check_constrained_delegation(krb5_context context, HDB *db,
+ hdb_entry_ex *entry,
+ krb5_const_principal target_principal)
{
- krb5_error_code ret;
- 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 (!priv) {
- return HDB_ERR_NOENTRY;
- }
-
- mem_ctx = talloc_named(priv, 0, "LDB_seq context");
-
- if (!mem_ctx) {
- krb5_set_error_string(context, "LDB_seq: talloc_named() failed!");
- return ENOMEM;
- }
+ struct samba_kdc_db_context *kdc_db_ctx;
- if (priv->index < priv->count) {
- ret = LDB_message2entry(context, db, mem_ctx,
- NULL, HDB_SAMBA4_ENT_TYPE_ANY,
- priv->realm_dn, priv->msgs[priv->index++], entry);
- } else {
- ret = HDB_ERR_NOENTRY;
- }
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
- if (ret != 0) {
- talloc_free(priv);
- db->hdb_dbc = NULL;
- } else {
- talloc_free(mem_ctx);
- }
-
- return ret;
+ return samba_kdc_check_s4u2proxy(context, kdc_db_ctx,
+ entry,
+ target_principal);
}
-static krb5_error_code LDB_firstkey(krb5_context context, HDB *db, unsigned flags,
- hdb_entry_ex *entry)
+static krb5_error_code
+hdb_samba4_check_pkinit_ms_upn_match(krb5_context context, HDB *db,
+ hdb_entry_ex *entry,
+ krb5_const_principal certificate_principal)
{
- struct ldb_context *ldb_ctx = (struct ldb_context *)db->hdb_db;
- struct hdb_ldb_seq *priv = (struct hdb_ldb_seq *)db->hdb_dbc;
- char *realm;
- struct ldb_result *res = NULL;
- krb5_error_code ret;
- TALLOC_CTX *mem_ctx;
- int lret;
-
- if (priv) {
- talloc_free(priv);
- db->hdb_dbc = NULL;
- }
-
- priv = (struct hdb_ldb_seq *) talloc(db, struct hdb_ldb_seq);
- if (!priv) {
- krb5_set_error_string(context, "talloc: out of memory");
- return ENOMEM;
- }
-
- priv->ctx = ldb_ctx;
- priv->index = 0;
- priv->msgs = NULL;
- priv->realm_dn = ldb_get_default_basedn(ldb_ctx);
- priv->count = 0;
+ struct samba_kdc_db_context *kdc_db_ctx;
- mem_ctx = talloc_named(priv, 0, "LDB_firstkey context");
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
- if (!mem_ctx) {
- krb5_set_error_string(context, "LDB_firstkey: talloc_named() failed!");
- return ENOMEM;
- }
-
- ret = krb5_get_default_realm(context, &realm);
- if (ret != 0) {
- talloc_free(priv);
- return ret;
- }
-
- lret = ldb_search(ldb_ctx, priv, &res,
- priv->realm_dn, LDB_SCOPE_SUBTREE, user_attrs,
- "(objectClass=user)");
-
- if (lret != LDB_SUCCESS) {
- talloc_free(priv);
- return HDB_ERR_NOENTRY;
- }
-
- priv->count = res->count;
- priv->msgs = talloc_steal(priv, res->msgs);
- talloc_free(res);
+ return samba_kdc_check_pkinit_ms_upn_match(context, kdc_db_ctx,
+ entry,
+ certificate_principal);
+}
- db->hdb_dbc = priv;
+static krb5_error_code
+hdb_samba4_check_s4u2self(krb5_context context, HDB *db,
+ hdb_entry_ex *entry,
+ krb5_const_principal target_principal)
+{
+ struct samba_kdc_db_context *kdc_db_ctx;
- ret = LDB_seq(context, db, flags, entry);
+ kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
- if (ret != 0) {
- talloc_free(priv);
- db->hdb_dbc = NULL;
- } else {
- talloc_free(mem_ctx);
- }
- return ret;
+ return samba_kdc_check_s4u2self(context, kdc_db_ctx,
+ entry,
+ target_principal);
}
-static krb5_error_code LDB_nextkey(krb5_context context, HDB *db, unsigned flags,
- hdb_entry_ex *entry)
+static krb5_error_code hdb_samba4_auth_status(krb5_context context, HDB *db,
+ hdb_entry_ex *entry,
+ int hdb_auth_status)
{
- return LDB_seq(context, db, flags, entry);
-}
+ struct samba_kdc_db_context *kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
+ struct samba_kdc_db_context);
+ struct samba_kdc_entry *p = talloc_get_type(entry->ctx, struct samba_kdc_entry);
-static krb5_error_code LDB_destroy(krb5_context context, HDB *db)
-{
- talloc_free(db);
+ if (hdb_auth_status == HDB_AUTH_WRONG_PASSWORD) {
+ authsam_update_bad_pwd_count(kdc_db_ctx->samdb, p->msg, ldb_get_default_basedn(kdc_db_ctx->samdb));
+ } else if (hdb_auth_status == HDB_AUTH_SUCCESS) {
+ authsam_zero_bad_pwd_count(kdc_db_ctx->samdb, p->msg);
+ }
return 0;
}
-/* 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 */
+/* This interface is to be called by the KDC and libnet_keytab_dump,
+ * which is expecting Samba calling conventions.
+ * It is also called by a wrapper (hdb_samba4_create) from the
+ * kpasswdd -> krb5 -> keytab_hdb -> hdb code */
-NTSTATUS kdc_hdb_samba4_create(TALLOC_CTX *mem_ctx,
- struct tevent_context *ev_ctx,
- struct loadparm_context *lp_ctx,
- krb5_context context, struct HDB **db, const char *arg)
+NTSTATUS hdb_samba4_create_kdc(struct samba_kdc_base_context *base_ctx,
+ krb5_context context, struct HDB **db)
{
+ struct samba_kdc_db_context *kdc_db_ctx;
NTSTATUS nt_status;
- struct auth_session_info *session_info;
- *db = talloc(mem_ctx, HDB);
+
+ if (hdb_interface_version != HDB_INTERFACE_VERSION) {
+ krb5_set_error_message(context, EINVAL, "Heimdal HDB interface version mismatch between build-time and run-time libraries!");
+ return NT_STATUS_ERROR_DS_INCOMPATIBLE_VERSION;
+ }
+
+ *db = talloc(base_ctx, HDB);
if (!*db) {
- krb5_set_error_string(context, "malloc: out of memory");
+ krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return NT_STATUS_NO_MEMORY;
}
(*db)->hdb_master_key_set = 0;
(*db)->hdb_db = NULL;
+ (*db)->hdb_capability_flags = HDB_CAP_F_HANDLE_ENTERPRISE_PRINCIPAL;
- nt_status = auth_system_session_info(*db, lp_ctx, &session_info);
+ nt_status = samba_kdc_setup_db_ctx(*db, base_ctx, &kdc_db_ctx);
if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(*db);
return nt_status;
}
-
- /* The idea here is very simple. Using Kerberos to
- * authenticate the KDC to the LDAP server is higly likely to
- * be circular.
- *
- * In future we may set this up to use EXERNAL and SSL
- * certificates, for now it will almost certainly be NTLMSSP
- */
-
- cli_credentials_set_kerberos_state(session_info->credentials,
- CRED_DONT_USE_KERBEROS);
-
- /* Setup the link to LDB */
- (*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_db = kdc_db_ctx;
(*db)->hdb_dbc = NULL;
- (*db)->hdb_open = LDB_open;
- (*db)->hdb_close = LDB_close;
- (*db)->hdb_fetch = LDB_fetch;
- (*db)->hdb_store = LDB_store;
- (*db)->hdb_remove = LDB_remove;
- (*db)->hdb_firstkey = LDB_firstkey;
- (*db)->hdb_nextkey = LDB_nextkey;
- (*db)->hdb_lock = LDB_lock;
- (*db)->hdb_unlock = LDB_unlock;
- (*db)->hdb_rename = LDB_rename;
+ (*db)->hdb_open = hdb_samba4_open;
+ (*db)->hdb_close = hdb_samba4_close;
+ (*db)->hdb_fetch_kvno = hdb_samba4_fetch_kvno;
+ (*db)->hdb_store = hdb_samba4_store;
+ (*db)->hdb_remove = hdb_samba4_remove;
+ (*db)->hdb_firstkey = hdb_samba4_firstkey;
+ (*db)->hdb_nextkey = hdb_samba4_nextkey;
+ (*db)->hdb_lock = hdb_samba4_lock;
+ (*db)->hdb_unlock = hdb_samba4_unlock;
+ (*db)->hdb_rename = hdb_samba4_rename;
/* we don't implement these, as we are not a lockable database */
(*db)->hdb__get = NULL;
(*db)->hdb__put = NULL;
/* kadmin should not be used for deletes - use other tools instead */
(*db)->hdb__del = NULL;
- (*db)->hdb_destroy = LDB_destroy;
+ (*db)->hdb_destroy = hdb_samba4_destroy;
- return NT_STATUS_OK;
-}
+ (*db)->hdb_auth_status = hdb_samba4_auth_status;
+ (*db)->hdb_check_constrained_delegation = hdb_samba4_check_constrained_delegation;
+ (*db)->hdb_check_pkinit_ms_upn_match = hdb_samba4_check_pkinit_ms_upn_match;
+ (*db)->hdb_check_s4u2self = hdb_samba4_check_s4u2self;
-krb5_error_code hdb_samba4_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_samba4_create(kdc_mem_ctx, kdc_ev_ctx, kdc_lp_ctx,
- context, db, arg);
-
- if (NT_STATUS_IS_OK(nt_status)) {
- return 0;
- }
- return EINVAL;
+ return NT_STATUS_OK;
}
git.samba.org / samba.git / blobdiff