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-rw-r--r--source4/auth/credentials/credentials.c14
-rw-r--r--source4/auth/credentials/credentials.h7
-rw-r--r--source4/auth/credentials/credentials_krb5.c55
3 files changed, 70 insertions, 6 deletions
diff --git a/source4/auth/credentials/credentials.c b/source4/auth/credentials/credentials.c
index 39b22df729..951c523b64 100644
--- a/source4/auth/credentials/credentials.c
+++ b/source4/auth/credentials/credentials.c
@@ -53,6 +53,9 @@ struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx)
cred->keytab_obtained = CRED_UNINITIALISED;
cred->principal_obtained = CRED_UNINITIALISED;
+ cred->ccache_threshold = CRED_UNINITIALISED;
+ cred->client_gss_creds_threshold = CRED_UNINITIALISED;
+
cred->old_password = NULL;
cred->smb_krb5_context = NULL;
cred->salt_principal = NULL;
@@ -125,6 +128,7 @@ const char *cli_credentials_get_username(struct cli_credentials *cred)
cred->username = cred->username_cb(cred);
cred->callback_running = False;
cred->username_obtained = CRED_SPECIFIED;
+ cli_credentials_invalidate_ccache(cred, cred->username_obtained);
}
return cred->username;
@@ -136,6 +140,7 @@ BOOL cli_credentials_set_username(struct cli_credentials *cred,
if (obtained >= cred->username_obtained) {
cred->username = talloc_strdup(cred, val);
cred->username_obtained = obtained;
+ cli_credentials_invalidate_ccache(cred, cred->username_obtained);
return True;
}
@@ -191,6 +196,7 @@ const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_C
cred->principal = cred->principal_cb(cred);
cred->callback_running = False;
cred->principal_obtained = CRED_SPECIFIED;
+ cli_credentials_invalidate_ccache(cred, cred->principal_obtained);
}
if (cred->principal_obtained < cred->username_obtained) {
@@ -214,6 +220,7 @@ BOOL cli_credentials_set_principal(struct cli_credentials *cred,
if (obtained >= cred->principal_obtained) {
cred->principal = talloc_strdup(cred, val);
cred->principal_obtained = obtained;
+ cli_credentials_invalidate_ccache(cred, cred->principal_obtained);
return True;
}
@@ -280,6 +287,7 @@ const char *cli_credentials_get_password(struct cli_credentials *cred)
cred->password = cred->password_cb(cred);
cred->callback_running = False;
cred->password_obtained = CRED_CALLBACK_RESULT;
+ cli_credentials_invalidate_ccache(cred, cred->password_obtained);
}
return cred->password;
@@ -295,6 +303,7 @@ BOOL cli_credentials_set_password(struct cli_credentials *cred,
if (obtained >= cred->password_obtained) {
cred->password = talloc_strdup(cred, val);
cred->password_obtained = obtained;
+ cli_credentials_invalidate_ccache(cred, cred->password_obtained);
cred->nt_hash = NULL;
return True;
@@ -309,6 +318,7 @@ BOOL cli_credentials_set_password_callback(struct cli_credentials *cred,
if (cred->password_obtained < CRED_CALLBACK) {
cred->password_cb = password_cb;
cred->password_obtained = CRED_CALLBACK;
+ cli_credentials_invalidate_ccache(cred, cred->password_obtained);
return True;
}
@@ -401,6 +411,7 @@ const char *cli_credentials_get_domain(struct cli_credentials *cred)
cred->domain = cred->domain_cb(cred);
cred->callback_running = False;
cred->domain_obtained = CRED_SPECIFIED;
+ cli_credentials_invalidate_ccache(cred, cred->domain_obtained);
}
return cred->domain;
@@ -417,6 +428,7 @@ BOOL cli_credentials_set_domain(struct cli_credentials *cred,
* calculations */
cred->domain = strupper_talloc(cred, val);
cred->domain_obtained = obtained;
+ cli_credentials_invalidate_ccache(cred, cred->domain_obtained);
return True;
}
@@ -453,6 +465,7 @@ const char *cli_credentials_get_realm(struct cli_credentials *cred)
cred->realm = cred->realm_cb(cred);
cred->callback_running = False;
cred->realm_obtained = CRED_SPECIFIED;
+ cli_credentials_invalidate_ccache(cred, cred->realm_obtained);
}
return cred->realm;
@@ -469,6 +482,7 @@ BOOL cli_credentials_set_realm(struct cli_credentials *cred,
if (obtained >= cred->realm_obtained) {
cred->realm = strupper_talloc(cred, val);
cred->realm_obtained = obtained;
+ cli_credentials_invalidate_ccache(cred, cred->realm_obtained);
return True;
}
diff --git a/source4/auth/credentials/credentials.h b/source4/auth/credentials/credentials.h
index e20c6015e9..2715e03c1c 100644
--- a/source4/auth/credentials/credentials.h
+++ b/source4/auth/credentials/credentials.h
@@ -61,6 +61,13 @@ struct cli_credentials {
enum credentials_obtained keytab_obtained;
enum credentials_obtained server_gss_creds_obtained;
+ /* Threshold values (essentially a MAX() over a number of the
+ * above) for the ccache and GSS credentials, to ensure we
+ * regenerate/pick correctly */
+
+ enum credentials_obtained ccache_threshold;
+ enum credentials_obtained client_gss_creds_threshold;
+
const char *workstation;
const char *username;
const char *password;
diff --git a/source4/auth/credentials/credentials_krb5.c b/source4/auth/credentials/credentials_krb5.c
index 2188bf6ad8..2f0ca35d76 100644
--- a/source4/auth/credentials/credentials_krb5.c
+++ b/source4/auth/credentials/credentials_krb5.c
@@ -101,7 +101,9 @@ int cli_credentials_set_from_ccache(struct cli_credentials *cred,
krb5_free_principal(cred->ccache->smb_krb5_context->krb5_context, princ);
+ /* set the ccache_obtained here, as it just got set to UNINITIALISED by the calls above */
cred->ccache_obtained = obtained;
+ cli_credentials_invalidate_client_gss_creds(cred, cred->ccache_obtained);
return 0;
}
@@ -262,9 +264,7 @@ int cli_credentials_get_ccache(struct cli_credentials *cred,
cli_credentials_set_machine_account(cred);
}
- if (cred->ccache_obtained >=(MAX(MAX(cred->principal_obtained,
- cred->username_obtained),
- cred->password_obtained))) {
+ if (cred->ccache_obtained >= cred->ccache_threshold) {
*ccc = cred->ccache;
return 0;
}
@@ -289,6 +289,49 @@ int cli_credentials_get_ccache(struct cli_credentials *cred,
return ret;
}
+void cli_credentials_invalidate_client_gss_creds(struct cli_credentials *cred,
+ enum credentials_obtained obtained)
+{
+ /* If the caller just changed the username/password etc, then
+ * any cached credentials are now invalid */
+ if (obtained >= cred->client_gss_creds_obtained) {
+ if (cred->client_gss_creds_obtained > CRED_UNINITIALISED) {
+ talloc_free(cred->client_gss_creds);
+ }
+ cred->client_gss_creds_obtained = CRED_UNINITIALISED;
+ }
+ /* Now that we know that the data is 'this specified', then
+ * don't allow something less 'known' to be returned as a
+ * ccache. Ie, if the username is on the commmand line, we
+ * don't want to later guess to use a file-based ccache */
+ if (obtained > cred->client_gss_creds_threshold) {
+ cred->client_gss_creds_threshold = obtained;
+ }
+}
+
+void cli_credentials_invalidate_ccache(struct cli_credentials *cred,
+ enum credentials_obtained obtained)
+{
+ /* If the caller just changed the username/password etc, then
+ * any cached credentials are now invalid */
+ if (obtained >= cred->ccache_obtained) {
+ if (cred->ccache_obtained > CRED_UNINITIALISED) {
+ talloc_free(cred->ccache);
+ }
+ cred->ccache_obtained = CRED_UNINITIALISED;
+ }
+ /* Now that we know that the data is 'this specified', then
+ * don't allow something less 'known' to be returned as a
+ * ccache. Ie, if the username is on the commmand line, we
+ * don't want to later guess to use a file-based ccache */
+ if (obtained > cred->ccache_threshold) {
+ cred->ccache_threshold = obtained;
+ }
+
+ cli_credentials_invalidate_client_gss_creds(cred,
+ obtained);
+}
+
static int free_gssapi_creds(struct gssapi_creds_container *gcc)
{
OM_uint32 min_stat, maj_stat;
@@ -303,9 +346,7 @@ int cli_credentials_get_client_gss_creds(struct cli_credentials *cred,
OM_uint32 maj_stat, min_stat;
struct gssapi_creds_container *gcc;
struct ccache_container *ccache;
- if (cred->client_gss_creds_obtained >= (MAX(cred->ccache_obtained,
- MAX(cred->principal_obtained,
- cred->username_obtained)))) {
+ if (cred->client_gss_creds_obtained >= cred->client_gss_creds_threshold) {
*_gcc = cred->client_gss_creds;
return 0;
}
@@ -389,6 +430,8 @@ int cli_credentials_set_client_gss_creds(struct cli_credentials *cred,
gcc->creds = gssapi_cred;
talloc_set_destructor(gcc, free_gssapi_creds);
+ /* set the clinet_gss_creds_obtained here, as it just
+ got set to UNINITIALISED by the calls above */
cred->client_gss_creds_obtained = obtained;
cred->client_gss_creds = gcc;
}
generated by cgit (git 2.34.1) at 2024-12-23 18:01:00 +0000