From: Coiby Xu <coiby.xu@gmail.com>
To: kexec@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org, Baoquan He <bhe@redhat.com>,
Dave Young <dyoung@redhat.com>, Will Deacon <will@kernel.org>,
"Eric W . Biederman" <ebiederm@xmission.com>,
Coiby Xu <coxu@redhat.com>,
linux-kernel@vger.kernel.org (open list)
Subject: [RESEND PATCH v3 1/3] kexec: clean up arch_kexec_kernel_verify_sig
Date: Fri, 4 Mar 2022 10:03:39 +0800 [thread overview]
Message-ID: <20220304020341.85583-2-coiby.xu@gmail.com> (raw)
In-Reply-To: <20220304020341.85583-1-coiby.xu@gmail.com>
From: Coiby Xu <coxu@redhat.com>
commit 9ec4ecef0af7790551109283ca039a7c52de343c ("kexec_file,x86,
powerpc: factor out kexec_file_ops functions" allows implementing
the arch-specific implementation of kernel image verification
in kexec_file_ops->verify_sig. Currently, there is no arch-specific
implementation of arch_kexec_kernel_verify_sig. So clean it up.
Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Coiby Xu <coiby.xu@gmail.com>
---
include/linux/kexec.h | 4 ----
kernel/kexec_file.c | 34 +++++++++++++---------------------
2 files changed, 13 insertions(+), 25 deletions(-)
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 0c994ae37729..755fed183224 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -196,10 +196,6 @@ int arch_kexec_apply_relocations(struct purgatory_info *pi,
const Elf_Shdr *relsec,
const Elf_Shdr *symtab);
int arch_kimage_file_post_load_cleanup(struct kimage *image);
-#ifdef CONFIG_KEXEC_SIG
-int arch_kexec_kernel_verify_sig(struct kimage *image, void *buf,
- unsigned long buf_len);
-#endif
int arch_kexec_locate_mem_hole(struct kexec_buf *kbuf);
extern int kexec_add_buffer(struct kexec_buf *kbuf);
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 8347fc158d2b..3720435807eb 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -89,25 +89,6 @@ int __weak arch_kimage_file_post_load_cleanup(struct kimage *image)
return kexec_image_post_load_cleanup_default(image);
}
-#ifdef CONFIG_KEXEC_SIG
-static int kexec_image_verify_sig_default(struct kimage *image, void *buf,
- unsigned long buf_len)
-{
- if (!image->fops || !image->fops->verify_sig) {
- pr_debug("kernel loader does not support signature verification.\n");
- return -EKEYREJECTED;
- }
-
- return image->fops->verify_sig(buf, buf_len);
-}
-
-int __weak arch_kexec_kernel_verify_sig(struct kimage *image, void *buf,
- unsigned long buf_len)
-{
- return kexec_image_verify_sig_default(image, buf, buf_len);
-}
-#endif
-
/*
* arch_kexec_apply_relocations_add - apply relocations of type RELA
* @pi: Purgatory to be relocated.
@@ -184,13 +165,24 @@ void kimage_file_post_load_cleanup(struct kimage *image)
}
#ifdef CONFIG_KEXEC_SIG
+static int kexec_image_verify_sig(struct kimage *image, void *buf,
+ unsigned long buf_len)
+{
+ if (!image->fops || !image->fops->verify_sig) {
+ pr_debug("kernel loader does not support signature verification.\n");
+ return -EKEYREJECTED;
+ }
+
+ return image->fops->verify_sig(buf, buf_len);
+}
+
static int
kimage_validate_signature(struct kimage *image)
{
int ret;
- ret = arch_kexec_kernel_verify_sig(image, image->kernel_buf,
- image->kernel_buf_len);
+ ret = kexec_image_verify_sig(image, image->kernel_buf,
+ image->kernel_buf_len);
if (ret) {
if (IS_ENABLED(CONFIG_KEXEC_SIG_FORCE)) {
--
2.34.1
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next prev parent reply other threads:[~2022-03-04 2:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-04 2:03 [RESEND PATCH v3 0/3] use more system keyrings to verify arm64 kdump kernel image signature Coiby Xu
2022-03-04 2:03 ` Coiby Xu [this message]
2022-03-17 12:45 ` [RESEND PATCH v3 1/3] kexec: clean up arch_kexec_kernel_verify_sig Baoquan He
2022-03-18 2:48 ` Coiby Xu
2022-03-18 3:27 ` Baoquan He
2022-03-18 7:18 ` Coiby Xu
2022-03-18 8:54 ` Baoquan He
2022-03-18 9:43 ` Coiby Xu
2022-03-04 2:03 ` [RESEND PATCH v3 2/3] kexec, KEYS: make the code in bzImage64_verify_sig generic Coiby Xu
2022-03-04 2:03 ` [RESEND PATCH v3 3/3] arm64: kexec_file: use more system keyrings to verify kernel image signature Coiby Xu
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