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From cb936e92041d63f79a74c30bae8140c74a18dbc0 Mon Sep 17 00:00:00 2001
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From: Sumit Bose <sbose@redhat.com>
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Date: Wed, 20 Jan 2021 18:25:04 +0100
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Subject: [PATCH 42/42] pam: refresh certificate maps at the end of initial
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domains lookup
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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During startup SSSD's responders send a getDomains request to all
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backends to refresh some domain related needed by the responders.
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The PAM responder specifically needs the certificate mapping and
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matching rules when Smartcard authentication is enable. Currently the
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rules are not refreshed at the end of the initial request but the code
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assumed that the related structures are initialized after the request
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finished.
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To avoid a race condition this patch adds a callback to the end of the
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request to make sure the rules are properly refreshed even if they are
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already initialized before.
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Resolves: https://github.com/SSSD/sssd/issues/5469
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Reviewed-by: Tomáš Halman <thalman@redhat.com>
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---
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src/responder/pam/pamsrv.c | 14 +++++++++++++-
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1 file changed, 13 insertions(+), 1 deletion(-)
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diff --git a/src/responder/pam/pamsrv.c b/src/responder/pam/pamsrv.c
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index 8b1ce2e92..65370662d 100644
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--- a/src/responder/pam/pamsrv.c
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+++ b/src/responder/pam/pamsrv.c
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@@ -154,6 +154,18 @@ static errno_t get_app_services(struct pam_ctx *pctx)
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return EOK;
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}
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+static void pam_get_domains_callback(void *pvt)
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+{
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+ struct pam_ctx *pctx;
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+ int ret;
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+
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+ pctx = talloc_get_type(pvt, struct pam_ctx);
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+ ret = p11_refresh_certmap_ctx(pctx, pctx->rctx->domains);
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+ if (ret != EOK) {
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+ DEBUG(SSSDBG_OP_FAILURE, "p11_refresh_certmap_ctx failed.\n");
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+ }
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+}
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+
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static int pam_process_init(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct confdb_ctx *cdb,
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@@ -247,7 +259,7 @@ static int pam_process_init(TALLOC_CTX *mem_ctx,
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responder_set_fd_limit(fd_limit);
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ret = schedule_get_domains_task(rctx, rctx->ev, rctx, pctx->rctx->ncache,
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- NULL, NULL);
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+ pam_get_domains_callback, pctx);
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if (ret != EOK) {
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DEBUG(SSSDBG_FATAL_FAILURE, "schedule_get_domains_tasks failed.\n");
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goto done;
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--
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2.21.3
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