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Diffstat (limited to 'ANDROID_3.4.5/security/selinux/ss/ebitmap.h')
-rw-r--r--ANDROID_3.4.5/security/selinux/ss/ebitmap.h145
1 files changed, 0 insertions, 145 deletions
diff --git a/ANDROID_3.4.5/security/selinux/ss/ebitmap.h b/ANDROID_3.4.5/security/selinux/ss/ebitmap.h
deleted file mode 100644
index 922f8afa..00000000
--- a/ANDROID_3.4.5/security/selinux/ss/ebitmap.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * An extensible bitmap is a bitmap that supports an
- * arbitrary number of bits. Extensible bitmaps are
- * used to represent sets of values, such as types,
- * roles, categories, and classes.
- *
- * Each extensible bitmap is implemented as a linked
- * list of bitmap nodes, where each bitmap node has
- * an explicitly specified starting bit position within
- * the total bitmap.
- *
- * Author : Stephen Smalley, <sds@epoch.ncsc.mil>
- */
-#ifndef _SS_EBITMAP_H_
-#define _SS_EBITMAP_H_
-
-#include <net/netlabel.h>
-
-#define EBITMAP_UNIT_NUMS ((32 - sizeof(void *) - sizeof(u32)) \
- / sizeof(unsigned long))
-#define EBITMAP_UNIT_SIZE BITS_PER_LONG
-#define EBITMAP_SIZE (EBITMAP_UNIT_NUMS * EBITMAP_UNIT_SIZE)
-#define EBITMAP_BIT 1ULL
-#define EBITMAP_SHIFT_UNIT_SIZE(x) \
- (((x) >> EBITMAP_UNIT_SIZE / 2) >> EBITMAP_UNIT_SIZE / 2)
-
-struct ebitmap_node {
- struct ebitmap_node *next;
- unsigned long maps[EBITMAP_UNIT_NUMS];
- u32 startbit;
-};
-
-struct ebitmap {
- struct ebitmap_node *node; /* first node in the bitmap */
- u32 highbit; /* highest position in the total bitmap */
-};
-
-#define ebitmap_length(e) ((e)->highbit)
-
-static inline unsigned int ebitmap_start_positive(struct ebitmap *e,
- struct ebitmap_node **n)
-{
- unsigned int ofs;
-
- for (*n = e->node; *n; *n = (*n)->next) {
- ofs = find_first_bit((*n)->maps, EBITMAP_SIZE);
- if (ofs < EBITMAP_SIZE)
- return (*n)->startbit + ofs;
- }
- return ebitmap_length(e);
-}
-
-static inline void ebitmap_init(struct ebitmap *e)
-{
- memset(e, 0, sizeof(*e));
-}
-
-static inline unsigned int ebitmap_next_positive(struct ebitmap *e,
- struct ebitmap_node **n,
- unsigned int bit)
-{
- unsigned int ofs;
-
- ofs = find_next_bit((*n)->maps, EBITMAP_SIZE, bit - (*n)->startbit + 1);
- if (ofs < EBITMAP_SIZE)
- return ofs + (*n)->startbit;
-
- for (*n = (*n)->next; *n; *n = (*n)->next) {
- ofs = find_first_bit((*n)->maps, EBITMAP_SIZE);
- if (ofs < EBITMAP_SIZE)
- return ofs + (*n)->startbit;
- }
- return ebitmap_length(e);
-}
-
-#define EBITMAP_NODE_INDEX(node, bit) \
- (((bit) - (node)->startbit) / EBITMAP_UNIT_SIZE)
-#define EBITMAP_NODE_OFFSET(node, bit) \
- (((bit) - (node)->startbit) % EBITMAP_UNIT_SIZE)
-
-static inline int ebitmap_node_get_bit(struct ebitmap_node *n,
- unsigned int bit)
-{
- unsigned int index = EBITMAP_NODE_INDEX(n, bit);
- unsigned int ofs = EBITMAP_NODE_OFFSET(n, bit);
-
- BUG_ON(index >= EBITMAP_UNIT_NUMS);
- if ((n->maps[index] & (EBITMAP_BIT << ofs)))
- return 1;
- return 0;
-}
-
-static inline void ebitmap_node_set_bit(struct ebitmap_node *n,
- unsigned int bit)
-{
- unsigned int index = EBITMAP_NODE_INDEX(n, bit);
- unsigned int ofs = EBITMAP_NODE_OFFSET(n, bit);
-
- BUG_ON(index >= EBITMAP_UNIT_NUMS);
- n->maps[index] |= (EBITMAP_BIT << ofs);
-}
-
-static inline void ebitmap_node_clr_bit(struct ebitmap_node *n,
- unsigned int bit)
-{
- unsigned int index = EBITMAP_NODE_INDEX(n, bit);
- unsigned int ofs = EBITMAP_NODE_OFFSET(n, bit);
-
- BUG_ON(index >= EBITMAP_UNIT_NUMS);
- n->maps[index] &= ~(EBITMAP_BIT << ofs);
-}
-
-#define ebitmap_for_each_positive_bit(e, n, bit) \
- for (bit = ebitmap_start_positive(e, &n); \
- bit < ebitmap_length(e); \
- bit = ebitmap_next_positive(e, &n, bit)) \
-
-int ebitmap_cmp(struct ebitmap *e1, struct ebitmap *e2);
-int ebitmap_cpy(struct ebitmap *dst, struct ebitmap *src);
-int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2);
-int ebitmap_get_bit(struct ebitmap *e, unsigned long bit);
-int ebitmap_set_bit(struct ebitmap *e, unsigned long bit, int value);
-void ebitmap_destroy(struct ebitmap *e);
-int ebitmap_read(struct ebitmap *e, void *fp);
-int ebitmap_write(struct ebitmap *e, void *fp);
-
-#ifdef CONFIG_NETLABEL
-int ebitmap_netlbl_export(struct ebitmap *ebmap,
- struct netlbl_lsm_secattr_catmap **catmap);
-int ebitmap_netlbl_import(struct ebitmap *ebmap,
- struct netlbl_lsm_secattr_catmap *catmap);
-#else
-static inline int ebitmap_netlbl_export(struct ebitmap *ebmap,
- struct netlbl_lsm_secattr_catmap **catmap)
-{
- return -ENOMEM;
-}
-static inline int ebitmap_netlbl_import(struct ebitmap *ebmap,
- struct netlbl_lsm_secattr_catmap *catmap)
-{
- return -ENOMEM;
-}
-#endif
-
-#endif /* _SS_EBITMAP_H_ */