From: Andrew Donnellan <ajd@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-integrity@vger.kernel.org
Cc: ruscur@russell.cc, bgray@linux.ibm.com, nayna@linux.ibm.com,
gcwilson@linux.ibm.com, gjoyce@linux.ibm.com,
brking@linux.ibm.com, stefanb@linux.ibm.com,
sudhakar@linux.ibm.com, erichte@linux.ibm.com,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
zohar@linux.ibm.com, joel@jms.id.au, npiggin@gmail.com
Subject: [PATCH v6 22/26] powerpc/pseries: Add helper to get PLPKS password length
Date: Fri, 10 Feb 2023 19:03:57 +1100 [thread overview]
Message-ID: <20230210080401.345462-23-ajd@linux.ibm.com> (raw)
In-Reply-To: <20230210080401.345462-1-ajd@linux.ibm.com>
From: Russell Currey <ruscur@russell.cc>
Add helper function to get the PLPKS password length. This will be used
in a later patch to support passing the password between kernels over
kexec.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
v3: New patch
v5: Drop plpks_get_password() since we no longer need to expose it.
---
arch/powerpc/include/asm/plpks.h | 5 +++++
arch/powerpc/platforms/pseries/plpks.c | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/arch/powerpc/include/asm/plpks.h b/arch/powerpc/include/asm/plpks.h
index 0c49969b0864..757313e00521 100644
--- a/arch/powerpc/include/asm/plpks.h
+++ b/arch/powerpc/include/asm/plpks.h
@@ -171,6 +171,11 @@ u32 plpks_get_maxlargeobjectsize(void);
*/
u64 plpks_get_signedupdatealgorithms(void);
+/**
+ * Returns the length of the PLPKS password in bytes.
+ */
+u16 plpks_get_passwordlen(void);
+
#endif // CONFIG_PSERIES_PLPKS
#endif // _ASM_POWERPC_PLPKS_H
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index 01ae919b4497..671a10acaebf 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -359,6 +359,11 @@ u64 plpks_get_signedupdatealgorithms(void)
return signedupdatealgorithms;
}
+u16 plpks_get_passwordlen(void)
+{
+ return ospasswordlength;
+}
+
bool plpks_is_available(void)
{
int rc;
--
2.39.1
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Donnellan <ajd@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-integrity@vger.kernel.org
Cc: sudhakar@linux.ibm.com, erichte@linux.ibm.com,
gregkh@linuxfoundation.org, nayna@linux.ibm.com,
npiggin@gmail.com, linux-kernel@vger.kernel.org,
zohar@linux.ibm.com, gjoyce@linux.ibm.com, ruscur@russell.cc,
joel@jms.id.au, bgray@linux.ibm.com, brking@linux.ibm.com,
gcwilson@linux.ibm.com, stefanb@linux.ibm.com
Subject: [PATCH v6 22/26] powerpc/pseries: Add helper to get PLPKS password length
Date: Fri, 10 Feb 2023 19:03:57 +1100 [thread overview]
Message-ID: <20230210080401.345462-23-ajd@linux.ibm.com> (raw)
In-Reply-To: <20230210080401.345462-1-ajd@linux.ibm.com>
From: Russell Currey <ruscur@russell.cc>
Add helper function to get the PLPKS password length. This will be used
in a later patch to support passing the password between kernels over
kexec.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
v3: New patch
v5: Drop plpks_get_password() since we no longer need to expose it.
---
arch/powerpc/include/asm/plpks.h | 5 +++++
arch/powerpc/platforms/pseries/plpks.c | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/arch/powerpc/include/asm/plpks.h b/arch/powerpc/include/asm/plpks.h
index 0c49969b0864..757313e00521 100644
--- a/arch/powerpc/include/asm/plpks.h
+++ b/arch/powerpc/include/asm/plpks.h
@@ -171,6 +171,11 @@ u32 plpks_get_maxlargeobjectsize(void);
*/
u64 plpks_get_signedupdatealgorithms(void);
+/**
+ * Returns the length of the PLPKS password in bytes.
+ */
+u16 plpks_get_passwordlen(void);
+
#endif // CONFIG_PSERIES_PLPKS
#endif // _ASM_POWERPC_PLPKS_H
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index 01ae919b4497..671a10acaebf 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -359,6 +359,11 @@ u64 plpks_get_signedupdatealgorithms(void)
return signedupdatealgorithms;
}
+u16 plpks_get_passwordlen(void)
+{
+ return ospasswordlength;
+}
+
bool plpks_is_available(void)
{
int rc;
--
2.39.1
next prev parent reply other threads:[~2023-02-10 8:05 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 8:03 [PATCH v6 00/26] pSeries dynamic secure boot secvar interface + platform keyring loading Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 01/26] powerpc/pseries: Fix handling of PLPKS object flushing timeout Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 02/26] powerpc/pseries: Fix alignment of PLPKS structures and buffers Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 03/26] powerpc/secvar: Fix incorrect return in secvar_sysfs_load() Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 04/26] powerpc/secvar: Use u64 in secvar_operations Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 05/26] powerpc/secvar: Warn and error if multiple secvar ops are set Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 20:51 ` Stefan Berger
2023-02-10 20:51 ` Stefan Berger
2023-02-10 8:03 ` [PATCH v6 06/26] powerpc/secvar: Use sysfs_emit() instead of sprintf() Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 07/26] powerpc/secvar: Handle format string in the consumer Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 08/26] powerpc/secvar: Handle max object size " Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 09/26] powerpc/secvar: Clean up init error messages Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 10/26] powerpc/secvar: Extend sysfs to include config vars Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 11/26] powerpc/secvar: Allow backend to populate static list of variable names Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 12/26] powerpc/secvar: Warn when PAGE_SIZE is smaller than max object size Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 13/26] powerpc/secvar: Don't print error on ENOENT when reading variables Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 14/26] powerpc/pseries: Move plpks.h to include directory Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 15/26] powerpc/pseries: Move PLPKS constants to header file Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 16/26] powerpc/pseries: Expose PLPKS config values, support additional fields Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 17/26] powerpc/pseries: Implement signed update for PLPKS objects Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 18/26] powerpc/pseries: Log hcall return codes for PLPKS debug Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 19/26] powerpc/pseries: Make caller pass buffer to plpks_read_var() Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 20/26] powerpc/pseries: Turn PSERIES_PLPKS into a hidden option Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 21/26] powerpc/pseries: Clarify warning when PLPKS password already set Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 20:47 ` Stefan Berger
2023-02-10 20:47 ` Stefan Berger
2023-02-12 13:26 ` Andrew Donnellan
2023-02-12 13:26 ` Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan [this message]
2023-02-10 8:03 ` [PATCH v6 22/26] powerpc/pseries: Add helper to get PLPKS password length Andrew Donnellan
2023-02-10 8:03 ` [PATCH v6 23/26] powerpc/pseries: Pass PLPKS password on kexec Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 20:59 ` Stefan Berger
2023-02-10 20:59 ` Stefan Berger
2023-02-10 8:03 ` [PATCH v6 24/26] powerpc/pseries: Implement secvars for dynamic secure boot Andrew Donnellan
2023-02-10 8:03 ` Andrew Donnellan
2023-02-10 21:23 ` Stefan Berger
2023-02-10 21:23 ` Stefan Berger
2023-02-10 21:28 ` Stefan Berger
2023-02-10 21:28 ` Stefan Berger
2023-02-12 13:33 ` Andrew Donnellan
2023-02-12 13:33 ` Andrew Donnellan
2023-02-13 5:26 ` Michael Ellerman
2023-02-13 5:26 ` Michael Ellerman
2023-02-13 7:07 ` Andrew Donnellan
2023-02-13 7:07 ` Andrew Donnellan
2023-02-13 7:06 ` Andrew Donnellan
2023-02-13 7:06 ` Andrew Donnellan
2023-02-13 11:32 ` Michael Ellerman
2023-02-13 11:32 ` Michael Ellerman
2023-02-13 13:52 ` Stefan Berger
2023-02-13 13:52 ` Stefan Berger
2023-02-14 6:07 ` Andrew Donnellan
2023-02-14 6:07 ` Andrew Donnellan
2023-02-15 11:46 ` Michael Ellerman
2023-02-15 11:46 ` Michael Ellerman
2023-02-10 8:04 ` [PATCH v6 25/26] integrity/powerpc: Improve error handling & reporting when loading certs Andrew Donnellan
2023-02-10 8:04 ` Andrew Donnellan
2023-02-10 8:04 ` [PATCH v6 26/26] integrity/powerpc: Support loading keys from PLPKS Andrew Donnellan
2023-02-10 8:04 ` Andrew Donnellan
2023-02-15 12:41 ` [PATCH v6 00/26] pSeries dynamic secure boot secvar interface + platform keyring loading Michael Ellerman
2023-02-15 12:41 ` Michael Ellerman
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