From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/security/tomoyo/file.c | 38 +++++++++++++++++++++++++++++---------
1 files changed, 29 insertions(+), 9 deletions(-)
diff --git a/kernel/security/tomoyo/file.c b/kernel/security/tomoyo/file.c
index 2a374b4..1e60775 100644
--- a/kernel/security/tomoyo/file.c
+++ b/kernel/security/tomoyo/file.c
@@ -214,6 +214,7 @@
const u8 type = r->param.path_number.operation;
u8 radix;
char buffer[64];
+
switch (type) {
case TOMOYO_TYPE_CREATE:
case TOMOYO_TYPE_MKDIR:
@@ -253,6 +254,7 @@
{
const struct tomoyo_path_acl *acl = container_of(ptr, typeof(*acl),
head);
+
if (acl->perm & (1 << r->param.path.operation)) {
r->param.path.matched_path =
tomoyo_compare_name_union(r->param.path.filename,
@@ -275,6 +277,7 @@
{
const struct tomoyo_path_number_acl *acl =
container_of(ptr, typeof(*acl), head);
+
return (acl->perm & (1 << r->param.path_number.operation)) &&
tomoyo_compare_number_union(r->param.path_number.number,
&acl->number) &&
@@ -295,6 +298,7 @@
{
const struct tomoyo_path2_acl *acl =
container_of(ptr, typeof(*acl), head);
+
return (acl->perm & (1 << r->param.path2.operation)) &&
tomoyo_compare_name_union(r->param.path2.filename1, &acl->name1)
&& tomoyo_compare_name_union(r->param.path2.filename2,
@@ -314,6 +318,7 @@
{
const struct tomoyo_mkdev_acl *acl =
container_of(ptr, typeof(*acl), head);
+
return (acl->perm & (1 << r->param.mkdev.operation)) &&
tomoyo_compare_number_union(r->param.mkdev.mode,
&acl->mode) &&
@@ -338,6 +343,7 @@
{
const struct tomoyo_path_acl *p1 = container_of(a, typeof(*p1), head);
const struct tomoyo_path_acl *p2 = container_of(b, typeof(*p2), head);
+
return tomoyo_same_name_union(&p1->name, &p2->name);
}
@@ -356,13 +362,14 @@
{
u16 * const a_perm = &container_of(a, struct tomoyo_path_acl, head)
->perm;
- u16 perm = *a_perm;
+ u16 perm = READ_ONCE(*a_perm);
const u16 b_perm = container_of(b, struct tomoyo_path_acl, head)->perm;
+
if (is_delete)
perm &= ~b_perm;
else
perm |= b_perm;
- *a_perm = perm;
+ WRITE_ONCE(*a_perm, perm);
return !perm;
}
@@ -384,6 +391,7 @@
.perm = perm
};
int error;
+
if (!tomoyo_parse_name_union(param, &e.name))
error = -EINVAL;
else
@@ -407,6 +415,7 @@
{
const struct tomoyo_mkdev_acl *p1 = container_of(a, typeof(*p1), head);
const struct tomoyo_mkdev_acl *p2 = container_of(b, typeof(*p2), head);
+
return tomoyo_same_name_union(&p1->name, &p2->name) &&
tomoyo_same_number_union(&p1->mode, &p2->mode) &&
tomoyo_same_number_union(&p1->major, &p2->major) &&
@@ -428,14 +437,15 @@
{
u8 *const a_perm = &container_of(a, struct tomoyo_mkdev_acl,
head)->perm;
- u8 perm = *a_perm;
+ u8 perm = READ_ONCE(*a_perm);
const u8 b_perm = container_of(b, struct tomoyo_mkdev_acl, head)
->perm;
+
if (is_delete)
perm &= ~b_perm;
else
perm |= b_perm;
- *a_perm = perm;
+ WRITE_ONCE(*a_perm, perm);
return !perm;
}
@@ -457,6 +467,7 @@
.perm = perm
};
int error;
+
if (!tomoyo_parse_name_union(param, &e.name) ||
!tomoyo_parse_number_union(param, &e.mode) ||
!tomoyo_parse_number_union(param, &e.major) ||
@@ -486,6 +497,7 @@
{
const struct tomoyo_path2_acl *p1 = container_of(a, typeof(*p1), head);
const struct tomoyo_path2_acl *p2 = container_of(b, typeof(*p2), head);
+
return tomoyo_same_name_union(&p1->name1, &p2->name1) &&
tomoyo_same_name_union(&p1->name2, &p2->name2);
}
@@ -505,13 +517,14 @@
{
u8 * const a_perm = &container_of(a, struct tomoyo_path2_acl, head)
->perm;
- u8 perm = *a_perm;
+ u8 perm = READ_ONCE(*a_perm);
const u8 b_perm = container_of(b, struct tomoyo_path2_acl, head)->perm;
+
if (is_delete)
perm &= ~b_perm;
else
perm |= b_perm;
- *a_perm = perm;
+ WRITE_ONCE(*a_perm, perm);
return !perm;
}
@@ -533,6 +546,7 @@
.perm = perm
};
int error;
+
if (!tomoyo_parse_name_union(param, &e.name1) ||
!tomoyo_parse_name_union(param, &e.name2))
error = -EINVAL;
@@ -621,6 +635,7 @@
head);
const struct tomoyo_path_number_acl *p2 = container_of(b, typeof(*p2),
head);
+
return tomoyo_same_name_union(&p1->name, &p2->name) &&
tomoyo_same_number_union(&p1->number, &p2->number);
}
@@ -640,14 +655,15 @@
{
u8 * const a_perm = &container_of(a, struct tomoyo_path_number_acl,
head)->perm;
- u8 perm = *a_perm;
+ u8 perm = READ_ONCE(*a_perm);
const u8 b_perm = container_of(b, struct tomoyo_path_number_acl, head)
->perm;
+
if (is_delete)
perm &= ~b_perm;
else
perm |= b_perm;
- *a_perm = perm;
+ WRITE_ONCE(*a_perm, perm);
return !perm;
}
@@ -667,6 +683,7 @@
.perm = perm
};
int error;
+
if (!tomoyo_parse_name_union(param, &e.name) ||
!tomoyo_parse_number_union(param, &e.number))
error = -EINVAL;
@@ -910,7 +927,7 @@
case TOMOYO_TYPE_LINK:
if (!d_is_dir(path1->dentry))
break;
- /* fall through */
+ fallthrough;
case TOMOYO_TYPE_PIVOT_ROOT:
tomoyo_add_slash(&buf1);
tomoyo_add_slash(&buf2);
@@ -947,6 +964,7 @@
{
const struct tomoyo_mount_acl *p1 = container_of(a, typeof(*p1), head);
const struct tomoyo_mount_acl *p2 = container_of(b, typeof(*p2), head);
+
return tomoyo_same_name_union(&p1->dev_name, &p2->dev_name) &&
tomoyo_same_name_union(&p1->dir_name, &p2->dir_name) &&
tomoyo_same_name_union(&p1->fs_type, &p2->fs_type) &&
@@ -966,6 +984,7 @@
{
struct tomoyo_mount_acl e = { .head.type = TOMOYO_TYPE_MOUNT_ACL };
int error;
+
if (!tomoyo_parse_name_union(param, &e.dev_name) ||
!tomoyo_parse_name_union(param, &e.dir_name) ||
!tomoyo_parse_name_union(param, &e.fs_type) ||
@@ -995,6 +1014,7 @@
u16 perm = 0;
u8 type;
const char *operation = tomoyo_read_token(param);
+
for (type = 0; type < TOMOYO_MAX_PATH_OPERATION; type++)
if (tomoyo_permstr(operation, tomoyo_path_keyword[type]))
perm |= 1 << type;
--
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