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kernel: fix anon_get_inode_* compat

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* Yes, we don't have fancy secure fd thing on older kernels.

Signed-off-by: Faris <rissu.ntk@gmail.com>
This commit is contained in:
Faris
2025-11-08 18:13:01 +07:00
committed by ShirkNeko
parent cc0dfc44ac
commit a473707c10
2 changed files with 11 additions and 2 deletions
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4
kernel/Makefile
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@@ -124,6 +124,10 @@ ifeq ($(shell grep -q "__poll_t" $(srctree)/include/linux/poll.h; echo $$?),1)
ccflags-y += -DKSU_NEED_POLL_T_DEF ccflags-y += -DKSU_NEED_POLL_T_DEF
endif endif
ifeq ($(shell grep -q "anon_inode_getfd_secure" $(srctree)/fs/anon_inodes.c; echo $$?),0)
ccflags-y += -DKSU_HAS_GETFD_SECURE
endif
# Checks Samsung # Checks Samsung
ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0) ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST

9
kernel/supercalls.c
View File

@@ -381,17 +381,22 @@ static int __do_get_wrapper_fd(void __user *arg, const char *anon_name)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0)
#define getfd_secure anon_inode_create_getfd #define getfd_secure anon_inode_create_getfd
#else #elif defined(KSU_HAS_GETFD_SECURE)
#define getfd_secure anon_inode_getfd_secure #define getfd_secure anon_inode_getfd_secure
#endif #endif
#ifdef KSU_HAS_GETFD_SECURE
ret = getfd_secure(anon_name, &data->ops, data, f->f_flags, NULL); ret = getfd_secure(anon_name, &data->ops, data, f->f_flags, NULL);
#else
ret = anon_inode_getfd(anon_name, &data->ops, data, f->f_flags);
#endif
if (ret < 0) { if (ret < 0) {
pr_err("ksu_fdwrapper: getfd failed: %d\n", ret); pr_err("ksu_fdwrapper: getfd failed: %d\n", ret);
goto put_wrapper_data; goto put_wrapper_data;
} }
struct file *pf = fget(ret);
struct file *pf = fget(ret);
struct inode *wrapper_inode = file_inode(pf); struct inode *wrapper_inode = file_inode(pf);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0) || \ #if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0) || \
defined(KSU_OPTIONAL_SELINUX_INODE) defined(KSU_OPTIONAL_SELINUX_INODE)