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-rw-r--r--auth/credentials/credentials_secrets.c93
1 files changed, 61 insertions, 32 deletions
diff --git a/auth/credentials/credentials_secrets.c b/auth/credentials/credentials_secrets.c
index 8c8c56701d4..dceffae0bb9 100644
--- a/auth/credentials/credentials_secrets.c
+++ b/auth/credentials/credentials_secrets.c
@@ -46,12 +46,14 @@
* @param cred Credentials structure to fill in
* @retval NTSTATUS error detailing any failure
*/
-_PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
- struct loadparm_context *lp_ctx,
- struct ldb_context *ldb,
- const char *base,
- const char *filter,
- char **error_string)
+static NTSTATUS cli_credentials_set_secrets_lct(struct cli_credentials *cred,
+ struct loadparm_context *lp_ctx,
+ struct ldb_context *ldb,
+ const char *base,
+ const char *filter,
+ time_t secrets_tdb_last_change_time,
+ const char *secrets_tdb_password,
+ char **error_string)
{
TALLOC_CTX *mem_ctx;
@@ -66,6 +68,7 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
const char *salt_principal;
char *keytab;
const struct ldb_val *whenChanged;
+ time_t lct;
/* ok, we are going to get it now, don't recurse back here */
cred->machine_account_pending = false;
@@ -79,8 +82,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
/* Local secrets are stored in secrets.ldb */
ldb = secrets_db_connect(mem_ctx, lp_ctx);
if (!ldb) {
- /* set anonymous as the fallback, if the machine account won't work */
- cli_credentials_set_anonymous(cred);
*error_string = talloc_strdup(cred, "Could not open secrets.ldb");
talloc_free(mem_ctx);
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
@@ -96,14 +97,32 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
*error_string = talloc_asprintf(cred, "Could not find entry to match filter: '%s' base: '%s': %s: %s",
filter, base ? base : "",
ldb_strerror(ldb_ret), ldb_errstring(ldb));
- /* set anonymous as the fallback, if the machine account won't work */
- cli_credentials_set_anonymous(cred);
talloc_free(mem_ctx);
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
password = ldb_msg_find_attr_as_string(msg, "secret", NULL);
+ whenChanged = ldb_msg_find_ldb_val(msg, "whenChanged");
+ if (!whenChanged || ldb_val_to_time(whenChanged, &lct) != LDB_SUCCESS) {
+ /* This attribute is mandetory */
+ talloc_free(mem_ctx);
+ return NT_STATUS_NOT_FOUND;
+ }
+
+ /* Don't set secrets.ldb info if the secrets.tdb entry was more recent */
+ if (lct < secrets_tdb_last_change_time) {
+ talloc_free(mem_ctx);
+ return NT_STATUS_NOT_FOUND;
+ }
+
+ if (lct == secrets_tdb_last_change_time && secrets_tdb_password && strcmp(password, secrets_tdb_password) != 0) {
+ talloc_free(mem_ctx);
+ return NT_STATUS_NOT_FOUND;
+ }
+
+ cli_credentials_set_password_last_changed_time(cred, lct);
+
machine_account = ldb_msg_find_attr_as_string(msg, "samAccountName", NULL);
if (!machine_account) {
@@ -117,8 +136,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
"'servicePrincipalName' or "
"'ldapBindDn' in secrets record: %s",
ldb_dn_get_linearized(msg->dn));
- /* set anonymous as the fallback, if the machine account won't work */
- cli_credentials_set_anonymous(cred);
talloc_free(mem_ctx);
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
} else {
@@ -169,14 +186,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
cli_credentials_set_kvno(cred, ldb_msg_find_attr_as_int(msg, "msDS-KeyVersionNumber", 0));
- whenChanged = ldb_msg_find_ldb_val(msg, "whenChanged");
- if (whenChanged) {
- time_t lct;
- if (ldb_val_to_time(whenChanged, &lct) == LDB_SUCCESS) {
- cli_credentials_set_password_last_changed_time(cred, lct);
- }
- }
-
/* If there was an external keytab specified by reference in
* the LDB, then use this. Otherwise we will make one up
* (chewing CPU time) from the password */
@@ -190,6 +199,28 @@ _PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
return NT_STATUS_OK;
}
+
+/**
+ * Fill in credentials for the machine trust account, from the secrets database.
+ *
+ * @param cred Credentials structure to fill in
+ * @retval NTSTATUS error detailing any failure
+ */
+_PUBLIC_ NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
+ struct loadparm_context *lp_ctx,
+ struct ldb_context *ldb,
+ const char *base,
+ const char *filter,
+ char **error_string)
+{
+ NTSTATUS status = cli_credentials_set_secrets_lct(cred, lp_ctx, ldb, base, filter, 0, NULL, error_string);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* set anonymous as the fallback, if the machine account won't work */
+ cli_credentials_set_anonymous(cred);
+ }
+ return status;
+}
+
/**
* Fill in credentials for the machine trust account, from the secrets database.
*
@@ -203,7 +234,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cr
char *filter;
char *error_string;
const char *domain;
- const char *realm;
bool secrets_tdb_password_more_recent;
time_t secrets_tdb_lct = 0;
char *secrets_tdb_password = NULL;
@@ -232,7 +262,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cr
/* We have to do this, as the fallback in
* cli_credentials_set_secrets is to run as anonymous, so the domain is wiped */
domain = cli_credentials_get_domain(cred);
- realm = cli_credentials_get_realm(cred);
if (db_ctx) {
TDB_DATA dbuf;
@@ -259,9 +288,9 @@ _PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cr
filter = talloc_asprintf(cred, SECRETS_PRIMARY_DOMAIN_FILTER,
domain);
- status = cli_credentials_set_secrets(cred, lp_ctx, NULL,
- SECRETS_PRIMARY_DOMAIN_DN,
- filter, &error_string);
+ status = cli_credentials_set_secrets_lct(cred, lp_ctx, NULL,
+ SECRETS_PRIMARY_DOMAIN_DN,
+ filter, secrets_tdb_lct, secrets_tdb_password, &error_string);
if (secrets_tdb_password == NULL) {
secrets_tdb_password_more_recent = false;
} else if (NT_STATUS_EQUAL(NT_STATUS_CANT_ACCESS_DOMAIN_INFO, status)
@@ -279,8 +308,6 @@ _PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cr
char *machine_account = talloc_asprintf(tmp_ctx, "%s$", lpcfg_netbios_name(lp_ctx));
cli_credentials_set_password(cred, secrets_tdb_password, CRED_SPECIFIED);
cli_credentials_set_domain(cred, domain, CRED_SPECIFIED);
- cli_credentials_set_realm(cred, realm, CRED_SPECIFIED);
- cli_credentials_set_workstation(cred, lpcfg_netbios_name(lp_ctx), CRED_SPECIFIED);
cli_credentials_set_username(cred, machine_account, CRED_SPECIFIED);
} else if (!NT_STATUS_IS_OK(status)) {
if (db_ctx) {
@@ -296,6 +323,8 @@ _PUBLIC_ NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cr
}
DEBUG(1, ("Could not find machine account in secrets database: %s: %s\n",
error_string, nt_errstr(status)));
+ /* set anonymous as the fallback, if the machine account won't work */
+ cli_credentials_set_anonymous(cred);
}
TALLOC_FREE(tmp_ctx);
@@ -321,9 +350,9 @@ NTSTATUS cli_credentials_set_krbtgt(struct cli_credentials *cred,
filter = talloc_asprintf(cred, SECRETS_KRBTGT_SEARCH,
cli_credentials_get_realm(cred),
cli_credentials_get_domain(cred));
- status = cli_credentials_set_secrets(cred, lp_ctx, NULL,
- SECRETS_PRINCIPALS_DN,
- filter, &error_string);
+ status = cli_credentials_set_secrets_lct(cred, lp_ctx, NULL,
+ SECRETS_PRINCIPALS_DN,
+ filter, 0, NULL, &error_string);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Could not find krbtgt (master Kerberos) account in secrets database: %s: %s\n", nt_errstr(status), error_string));
talloc_free(error_string);
@@ -352,9 +381,9 @@ _PUBLIC_ NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *c
cli_credentials_get_realm(cred),
cli_credentials_get_domain(cred),
serviceprincipal);
- status = cli_credentials_set_secrets(cred, lp_ctx, NULL,
+ status = cli_credentials_set_secrets_lct(cred, lp_ctx, NULL,
SECRETS_PRINCIPALS_DN, filter,
- &error_string);
+ 0, NULL, &error_string);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Could not find %s principal in secrets database: %s: %s\n", serviceprincipal, nt_errstr(status), error_string));
}
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