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575fddf25b
systemd v253 changelog/NEWS: https://github.com/systemd/systemd/blob/v253/NEWS NixOS changes: 0007-hostnamed-localed-timedated-disable-methods-that-cha.patch was dropped, because systemd gained support to handle read-only /etc. *-add-rootprefix-to-lookup-dir-paths.patch required some updates too, as src/basic/def.h moved to src/basic/constants.h. systemd/systemd#25771 switched p11kit to become dlopen()'ed, so we need to patch that path. added a note to the 23.05 release notes to recommend `nixos-rebuild boot` Co-authored-by: Florian Klink <flokli@flokli.de>
42 lines
1.9 KiB
Diff
42 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nick Cao <nickcao@nichi.co>
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Date: Sun, 15 Jan 2023 20:15:55 +0800
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Subject: [PATCH] tpm2_context_init: fix driver name checking
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https://github.com/systemd/systemd/commit/542dbc623e introduced
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additional checks for tpm2 driver names, namely ensuring the driver
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name, when concated with "libtss2-tcti-" and ".so.0", generates a valid
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filename (with no '/' inside).
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For example, if the driver is name "device", the line
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fn = strjoina("libtss2-tcti-", driver, ".so.0")
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would yield "libtss2-tcti-device.so.0", passing the check. And the
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filename is then passed to dlopen for loading the driver.
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Our current approach for systemd to correctly locate these dynamically
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loaded libraries is to patch the filenames to include their absolute
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path. Thus the line mentioned above is patched into
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fn = strjoina("/nix/store/xxxxxxx-tpm2-tss-3.2.0/lib/libtss2-tcti-", driver, ".so.0")
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yielding "/nix/store/xxxxxxx-tpm2-tss-3.2.0/lib/libtss2-tcti-device.so.0",
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tripping the check.
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This patch relaxes the check to also accept absolute paths, by replacing
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filename_is_valid with path_is_valid.
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---
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src/shared/tpm2-util.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/shared/tpm2-util.c b/src/shared/tpm2-util.c
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index 259f280e0f..142e70a740 100644
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--- a/src/shared/tpm2-util.c
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+++ b/src/shared/tpm2-util.c
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@@ -176,7 +176,7 @@ int tpm2_context_new(const char *device, Tpm2Context **ret_context) {
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fn = strjoina("libtss2-tcti-", driver, ".so.0");
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/* Better safe than sorry, let's refuse strings that cannot possibly be valid driver early, before going to disk. */
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- if (!filename_is_valid(fn))
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+ if (!path_is_valid(fn))
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "TPM2 driver name '%s' not valid, refusing.", driver);
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context->tcti_dl = dlopen(fn, RTLD_NOW);
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