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Allow overspecification of SYSCTL type in external kernel modules.

Browse Source 
PR:		194523
MFC after:	3 days
This commit is contained in:
hselasky 2014-10-22 07:16:46 +00:00
parent da67b5206c
commit 2d5dda33e3
1 changed files with 64 additions and 29 deletions
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93
sys/sys/sysctl.h
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@ -123,6 +123,13 @@ struct ctlname {
#ifdef _KERNEL
#include <sys/linker_set.h>
#ifdef KLD_MODULE
/* XXX allow overspecification of type in external kernel modules */
#define SYSCTL_CT_ASSERT_MASK CTLTYPE
#else
#define SYSCTL_CT_ASSERT_MASK 0
#endif
#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
intptr_t arg2, struct sysctl_req *req
@ -268,24 +275,28 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \
nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \
handler, "N", descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
/* This constructs a node from which other oids can hang. */
#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE)
#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", __DESCR(descr)); \
})
#define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \
sysctl_add_oid(ctx, &sysctl__children, nbr, name, \
CTLTYPE_NODE|(access), \
NULL, 0, handler, "N", __DESCR(descr)); \
@ -295,12 +306,14 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
arg, len, sysctl_handle_string, "A", descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING)
#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
({ \
char *__arg = (arg); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \
__arg, len, sysctl_handle_string, "A", __DESCR(descr)); \
})
@ -311,13 +324,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_int, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
CTASSERT(sizeof(int) == sizeof(*(ptr)))
#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
int *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_int, "I", __DESCR(descr)); \
@ -329,13 +344,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_int, "IU", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT);\
CTASSERT(sizeof(unsigned) == sizeof(*(ptr)))
#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
({ \
unsigned *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \
__ptr, val, sysctl_handle_int, "IU", __DESCR(descr)); \
@ -347,13 +364,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_long, "L", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG);\
CTASSERT(sizeof(long) == sizeof(*(ptr)))
#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
({ \
long *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_long, "L", __DESCR(descr)); \
@ -365,13 +384,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_long, "LU", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
CTASSERT(sizeof(unsigned long) == sizeof(*(ptr)))
#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
({ \
unsigned long *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_long, "LU", __DESCR(descr)); \
@ -383,13 +404,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "Q", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
CTASSERT(sizeof(int64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \
({ \
int64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_64, "Q", __DESCR(descr)); \
@ -400,13 +423,15 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
ptr, val, sysctl_handle_64, "QU", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
CTASSERT(sizeof(uint64_t) == sizeof(*(ptr)))
#define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uint64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_64, "QU", __DESCR(descr)); \
@ -438,14 +463,16 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
(ptr), 0, sysctl_handle_counter_u64, "QU", descr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
CTASSERT(sizeof(counter_u64_t) == sizeof(*(ptr))); \
CTASSERT(sizeof(uint64_t) == sizeof(**(ptr)))
#define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \
({ \
counter_u64_t *__ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr)); \
@ -455,11 +482,13 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
ptr, len, sysctl_handle_opaque, fmt, descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr)); \
})
@ -469,11 +498,13 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
ptr, sizeof(struct type), sysctl_handle_opaque, \
"S," #type, descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE)
#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
({ \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \
sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \
(ptr), sizeof(struct type), \
sysctl_handle_opaque, "S," #type, __DESCR(descr)); \
@ -497,12 +528,14 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
(ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
#define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uma_zone_t __ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
uma_zone_t __ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \
__ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr)); \
@ -513,12 +546,14 @@ TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
(ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \
CTASSERT(((access) & CTLTYPE) == 0)
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT)
#define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \
({ \
uma_zone_t __ptr = (ptr); \
CTASSERT(((access) & CTLTYPE) == 0); \
CTASSERT(((access) & CTLTYPE) == 0 || \
((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \
sysctl_add_oid(ctx, parent, nbr, name, \
CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \
__ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr)); \