From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/tools/testing/selftests/x86/ioperm.c | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/kernel/tools/testing/selftests/x86/ioperm.c b/kernel/tools/testing/selftests/x86/ioperm.c
index 01de41c..57ec5e9 100644
--- a/kernel/tools/testing/selftests/x86/ioperm.c
+++ b/kernel/tools/testing/selftests/x86/ioperm.c
@@ -131,6 +131,17 @@
printf("[RUN]\tchild: check that we inherited permissions\n");
expect_ok(0x80);
expect_gp(0xed);
+ printf("[RUN]\tchild: Extend permissions to 0x81\n");
+ if (ioperm(0x81, 1, 1) != 0) {
+ printf("[FAIL]\tioperm(0x81, 1, 1) failed (%d)", errno);
+ return 1;
+ }
+ printf("[RUN]\tchild: Drop permissions to 0x80\n");
+ if (ioperm(0x80, 1, 0) != 0) {
+ printf("[FAIL]\tioperm(0x80, 1, 0) failed (%d)", errno);
+ return 1;
+ }
+ expect_gp(0x80);
return 0;
} else {
int status;
@@ -146,8 +157,11 @@
}
}
- /* Test the capability checks. */
+ /* Verify that the child dropping 0x80 did not affect the parent */
+ printf("\tVerify that unsharing the bitmap worked\n");
+ expect_ok(0x80);
+ /* Test the capability checks. */
printf("\tDrop privileges\n");
if (setresuid(1, 1, 1) != 0) {
printf("[WARN]\tDropping privileges failed\n");
--
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