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sssd-2.4.0-6 - improve kcm performance

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This commit is contained in:
Pavel Březina 2020-12-11 11:30:39 +01:00
parent d86ed3a2a2
commit 968f95e90a
2 changed files with 49 additions and 1 deletions
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43
0020-kcm-decode-base64-encoded-secret-on-upgrade-path.patch Normal file
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@ -0,0 +1,43 @@
From 18b98836ef8e337992f0ecb239a32b9c3cedb750 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina@redhat.com>
Date: Wed, 9 Dec 2020 14:07:22 +0100
Subject: [PATCH] kcm: decode base64 encoded secret on upgrade path
Previous unefficient code encoded the secret multiple times:
secret -> base64 -> masterkey -> base64
To allow smooth upgrade for already existant ccache we need to also decode
the secret if it is still in the old format (type == simple). Otherwise
users are not able to log in.
Resolves: https://github.com/SSSD/sssd/issues/5349
Reviewed-by: Alexey Tikhonov <atikhono@redhat.com>
---
src/responder/kcm/kcmsrv_ccache_secdb.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/responder/kcm/kcmsrv_ccache_secdb.c b/src/responder/kcm/kcmsrv_ccache_secdb.c
index 726711ac441c40a6bfc84045e9b3e5b85505c7e0..ea5c8f9ee36ddc6008ea80693d3e28c4de5a00c1 100644
--- a/src/responder/kcm/kcmsrv_ccache_secdb.c
+++ b/src/responder/kcm/kcmsrv_ccache_secdb.c
@@ -59,6 +59,16 @@ static errno_t sec_get(TALLOC_CTX *mem_ctx,
goto done;
}
+ if (strcmp(datatype, "simple") == 0) {
+ /* The secret is stored in b64 encoding, we need to decode it first. */
+ data = sss_base64_decode(tmp_ctx, (const char*)data, &len);
+ if (data == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, "Cannot decode secret from base64\n");
+ ret = EIO;
+ goto done;
+ }
+ }
+
buf = sss_iobuf_init_steal(tmp_ctx, data, len);
if (buf == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Cannot init the iobuf\n");
--
2.25.4

7
sssd.spec
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@ -29,7 +29,7 @@
Name: sssd
Version: 2.4.0
Release: 5%{?dist}
Release: 6%{?dist}
Summary: System Security Services Daemon
License: GPLv3+
URL: https://github.com/SSSD/sssd/
@ -55,6 +55,8 @@ Patch0016: 0016-secrets-fix-may_payload_size-exceeded-debug-message.patch
Patch0017: 0017-secrets-default-to-plaintext-if-enctype-attr-is-miss.patch
Patch0018: 0018-secrets-move-attrs-names-to-macros.patch
Patch0019: 0019-secrets-remove-base64-enctype.patch
Patch0020: 0020-kcm-decode-base64-encoded-secret-on-upgrade-path.patch
### Downstream only patches ###
Patch0502: 0502-SYSTEMD-Use-capabilities.patch
@ -1033,6 +1035,9 @@ fi
%systemd_postun_with_restart sssd.service
%changelog
* Fri Dec 11 2020 Pavel Březina <pbrezina@redhat.com> - 2.4.0-6
- Improve sssd-kcm performance, fix upgrade with existing credentials (rhbz#1645624)
* Mon Dec 7 2020 Pavel Březina <pbrezina@redhat.com> - 2.4.0-5
- Improve sssd-kcm performance (rhbz#1645624)