sssd/0010-krb5-make-sure-answer_pkinit-use-matching-debug-mess.patch

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From c3725a13ef694c2c34813953153f33ebfbaf1c27 Mon Sep 17 00:00:00 2001
From: Sumit Bose <sbose@redhat.com>
Date: Fri, 15 Mar 2024 11:29:47 +0100
Subject: [PATCH 10/12] krb5: make sure answer_pkinit() use matching debug
messages
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Resolves: https://github.com/SSSD/sssd/issues/7152
Reviewed-by: Alejandro López <allopez@redhat.com>
Reviewed-by: Justin Stephenson <jstephen@redhat.com>
(cherry picked from commit 7c33f9d57cebfff80778f930ff0cc3144a7cc261)
---
src/providers/krb5/krb5_child.c | 77 ++++++++++++++++++---------------
1 file changed, 42 insertions(+), 35 deletions(-)
diff --git a/src/providers/krb5/krb5_child.c b/src/providers/krb5/krb5_child.c
index 116f2adda..926109588 100644
--- a/src/providers/krb5/krb5_child.c
+++ b/src/providers/krb5/krb5_child.c
@@ -745,51 +745,58 @@ static krb5_error_code answer_pkinit(krb5_context ctx,
DEBUG(SSSDBG_TRACE_ALL, "Setting pkinit_prompting.\n");
kr->pkinit_prompting = true;
- if (kr->pd->cmd == SSS_PAM_AUTHENTICATE
- && (sss_authtok_get_type(kr->pd->authtok)
+ if (kr->pd->cmd == SSS_PAM_AUTHENTICATE) {
+ if ((sss_authtok_get_type(kr->pd->authtok)
== SSS_AUTHTOK_TYPE_SC_PIN
|| sss_authtok_get_type(kr->pd->authtok)
== SSS_AUTHTOK_TYPE_SC_KEYPAD)) {
- kerr = sss_authtok_get_sc(kr->pd->authtok, &pin, NULL,
- &token_name, NULL,
- &module_name, NULL,
- NULL, NULL, NULL, NULL);
- if (kerr != EOK) {
- DEBUG(SSSDBG_OP_FAILURE,
- "sss_authtok_get_sc failed.\n");
- goto done;
- }
+ kerr = sss_authtok_get_sc(kr->pd->authtok, &pin, NULL,
+ &token_name, NULL,
+ &module_name, NULL,
+ NULL, NULL, NULL, NULL);
+ if (kerr != EOK) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "sss_authtok_get_sc failed.\n");
+ goto done;
+ }
- for (c = 0; chl->identities[c] != NULL; c++) {
- if (chl->identities[c]->identity != NULL
- && pkinit_identity_matches(chl->identities[c]->identity,
- token_name, module_name)) {
- break;
+ for (c = 0; chl->identities[c] != NULL; c++) {
+ if (chl->identities[c]->identity != NULL
+ && pkinit_identity_matches(chl->identities[c]->identity,
+ token_name, module_name)) {
+ break;
+ }
}
- }
- if (chl->identities[c] == NULL) {
- DEBUG(SSSDBG_CRIT_FAILURE,
- "No matching identity for [%s][%s] found in pkinit challenge.\n",
- token_name, module_name);
- kerr = EINVAL;
- goto done;
- }
+ if (chl->identities[c] == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ "No matching identity for [%s][%s] found in pkinit "
+ "challenge.\n", token_name, module_name);
+ kerr = EINVAL;
+ goto done;
+ }
- kerr = krb5_responder_pkinit_set_answer(ctx, rctx,
- chl->identities[c]->identity,
- pin);
- if (kerr != 0) {
- DEBUG(SSSDBG_OP_FAILURE,
- "krb5_responder_set_answer failed.\n");
- }
+ kerr = krb5_responder_pkinit_set_answer(ctx, rctx,
+ chl->identities[c]->identity,
+ pin);
+ if (kerr != 0) {
+ DEBUG(SSSDBG_OP_FAILURE,
+ "krb5_responder_set_answer failed.\n");
+ }
- goto done;
+ goto done;
+ } else {
+ DEBUG(SSSDBG_MINOR_FAILURE,
+ "Unexpected authentication token type [%s]\n",
+ sss_authtok_type_to_str(sss_authtok_get_type(kr->pd->authtok)));
+ kerr = EAGAIN;
+ goto done;
+ }
} else {
- DEBUG(SSSDBG_MINOR_FAILURE, "Unexpected authentication token type [%s]\n",
- sss_authtok_type_to_str(sss_authtok_get_type(kr->pd->authtok)));
+ /* We only expect SSS_PAM_PREAUTH here, but also for all other
+ * commands the graceful solution would be to let the caller
+ * check other authentication methods as well. */
kerr = EAGAIN;
- goto done;
}
done:
--
2.42.0