wash/mango
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kxld: implement internal kext dependency resolution and initialisation

Browse Source
This commit is contained in:
max 🍓
2023-04-09 16:43:03 +01:00
parent 076a15e47b
commit eb998860a5
4 changed files with 358 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
include/socks/kext.h
View File

@@ -3,9 +3,11 @@
#include <socks/status.h>
#include <socks/compiler.h>
#include <socks/btree.h>
#define KERNEL_KEXT_ID "net.doorstuck.socks-kernel"
#define KEXT_IDENT_MAX 80
#define KEXT_NO_DEPENDENCIES NULL
#define __KEXT_INFO_VARNAME_2(a, b) a ## b
#define __KEXT_INFO_VARNAME_1(a, b) __KEXT_INFO_VARNAME_2(a, b)
@@ -15,36 +17,38 @@
#define __KEXT_INFO_VARNAME() __KEXT_INFO_VARNAME_1(__kext_info, __LINE__)
#define __KEXT_INFO_DEPNAME() __KEXT_INFO_VARNAME_1(__kext_deps, __LINE__)
#define __KEXT_INFO_FLAGS KEXT_INTERNAL
#define __KEXT_INFO_ALIGNMENT 0x80
#else
#define __KEXT_INFO_LINKAGE
#define __KEXT_INFO_VARNAME() __kext_info
#define __KEXT_INFO_DEPNAME() __kext_deps
#define __KEXT_INFO_FLAGS KEXT_NONE
#define __KEXT_INFO_ALIGNMENT 0x80
#endif
#ifdef __cplusplus
#define DEFINE_KEXT(ident, online, offline, ...) \
static const char *__KEXT_INFO_DEPNAME()[] = { \
__VA_ARGS__ \
}; \
static struct kext_info __section(".kextinfo") __used __KEXT_INFO_VARNAME() = { \
__KEXT_INFO_FLAGS, \
ident, \
online, \
offline, \
__KEXT_INFO_DEPNAME(), \
#define DEFINE_KEXT(ident, online, offline, ...) \
static const char *__KEXT_INFO_DEPNAME()[] = { \
__VA_ARGS__, NULL \
}; \
static struct kext_info __section(".kextinfo") __aligned(__KEXT_INFO_ALIGNMENT) __used __KEXT_INFO_VARNAME() = { \
__KEXT_INFO_FLAGS, \
ident, \
online, \
offline, \
__KEXT_INFO_DEPNAME(), \
}
#else
#define DEFINE_KEXT(ident, online, offline, ...) \
static const char *__kext_deps[] = { \
__VA_ARGS__ \
}; \
static struct kext_info __section(".kextinfo") __used __kext_info = { \
.k_flags = __KEXT_INFO_FLAGS, \
.k_ident = ident, \
.k_online = online, \
.k_offline = offline, \
.k_dependencies = __kext_deps, \
#define DEFINE_KEXT(ident, online, offline, ...) \
static const char *__KEXT_INFO_DEPNAME()[] = { \
__VA_ARGS__, NULL \
}; \
static struct kext_info __section(".kextinfo") __aligned(__KEXT_INFO_ALIGNMENT) __used __KEXT_INFO_VARNAME() = { \
.k_flags = __KEXT_INFO_FLAGS, \
.k_ident = ident, \
.k_online = online, \
.k_offline = offline, \
.k_dependencies = __KEXT_INFO_DEPNAME(), \
}
#endif
@@ -67,6 +71,8 @@ struct kext_info {
struct kext {
enum kext_flags k_flags;
char k_ident[KEXT_IDENT_MAX];
uint64_t k_ident_hash;
btree_node_t k_node;
kern_status_t(*k_online)(struct kext *);
kern_status_t(*k_offline)(struct kext *);
@@ -78,4 +84,11 @@ struct kext {
extern kern_status_t scan_internal_kexts(void);
extern kern_status_t bring_internal_kexts_online(void);
extern kern_status_t kext_cache_init(void);
extern struct kext *kext_alloc(void);
extern void kext_release(struct kext *kext);
extern kern_status_t kext_register(struct kext *kext);
extern struct kext *kext_get_by_id(const char *ident);
extern kern_status_t kext_bring_online(struct kext *kext);
#endif