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-rw-r--r--include/linux/atmdev.h10
-rw-r--r--include/linux/key-ui.h91
2 files changed, 15 insertions, 86 deletions
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index f1fd849e5535..aca9b344bd35 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -76,6 +76,13 @@ struct atm_dev_stats {
76 /* set interface ESI */ 76 /* set interface ESI */
77#define ATM_SETESIF _IOW('a',ATMIOC_ITF+13,struct atmif_sioc) 77#define ATM_SETESIF _IOW('a',ATMIOC_ITF+13,struct atmif_sioc)
78 /* force interface ESI */ 78 /* force interface ESI */
79#define ATM_ADDLECSADDR _IOW('a', ATMIOC_ITF+14, struct atmif_sioc)
80 /* register a LECS address */
81#define ATM_DELLECSADDR _IOW('a', ATMIOC_ITF+15, struct atmif_sioc)
82 /* unregister a LECS address */
83#define ATM_GETLECSADDR _IOW('a', ATMIOC_ITF+16, struct atmif_sioc)
84 /* retrieve LECS address(es) */
85
79#define ATM_GETSTAT _IOW('a',ATMIOC_SARCOM+0,struct atmif_sioc) 86#define ATM_GETSTAT _IOW('a',ATMIOC_SARCOM+0,struct atmif_sioc)
80 /* get AAL layer statistics */ 87 /* get AAL layer statistics */
81#define ATM_GETSTATZ _IOW('a',ATMIOC_SARCOM+1,struct atmif_sioc) 88#define ATM_GETSTATZ _IOW('a',ATMIOC_SARCOM+1,struct atmif_sioc)
@@ -328,6 +335,8 @@ struct atm_dev_addr {
328 struct list_head entry; /* next address */ 335 struct list_head entry; /* next address */
329}; 336};
330 337
338enum atm_addr_type_t { ATM_ADDR_LOCAL, ATM_ADDR_LECS };
339
331struct atm_dev { 340struct atm_dev {
332 const struct atmdev_ops *ops; /* device operations; NULL if unused */ 341 const struct atmdev_ops *ops; /* device operations; NULL if unused */
333 const struct atmphy_ops *phy; /* PHY operations, may be undefined */ 342 const struct atmphy_ops *phy; /* PHY operations, may be undefined */
@@ -338,6 +347,7 @@ struct atm_dev {
338 void *phy_data; /* private PHY date */ 347 void *phy_data; /* private PHY date */
339 unsigned long flags; /* device flags (ATM_DF_*) */ 348 unsigned long flags; /* device flags (ATM_DF_*) */
340 struct list_head local; /* local ATM addresses */ 349 struct list_head local; /* local ATM addresses */
350 struct list_head lecs; /* LECS ATM addresses learned via ILMI */
341 unsigned char esi[ESI_LEN]; /* ESI ("MAC" addr) */ 351 unsigned char esi[ESI_LEN]; /* ESI ("MAC" addr) */
342 struct atm_cirange ci_range; /* VPI/VCI range */ 352 struct atm_cirange ci_range; /* VPI/VCI range */
343 struct k_atm_dev_stats stats; /* statistics */ 353 struct k_atm_dev_stats stats; /* statistics */
diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h
index 918c34a8347e..7a2e332067c3 100644
--- a/include/linux/key-ui.h
+++ b/include/linux/key-ui.h
@@ -38,97 +38,16 @@ struct keyring_list {
38 struct key *keys[0]; 38 struct key *keys[0];
39}; 39};
40 40
41
42/* 41/*
43 * check to see whether permission is granted to use a key in the desired way 42 * check to see whether permission is granted to use a key in the desired way
44 */ 43 */
45static inline int key_permission(const key_ref_t key_ref, key_perm_t perm) 44extern int key_task_permission(const key_ref_t key_ref,
46{ 45 struct task_struct *context,
47 struct key *key = key_ref_to_ptr(key_ref); 46 key_perm_t perm);
48 key_perm_t kperm;
49
50 if (is_key_possessed(key_ref))
51 kperm = key->perm >> 24;
52 else if (key->uid == current->fsuid)
53 kperm = key->perm >> 16;
54 else if (key->gid != -1 &&
55 key->perm & KEY_GRP_ALL &&
56 in_group_p(key->gid)
57 )
58 kperm = key->perm >> 8;
59 else
60 kperm = key->perm;
61
62 kperm = kperm & perm & KEY_ALL;
63
64 return kperm == perm;
65}
66
67/*
68 * check to see whether permission is granted to use a key in at least one of
69 * the desired ways
70 */
71static inline int key_any_permission(const key_ref_t key_ref, key_perm_t perm)
72{
73 struct key *key = key_ref_to_ptr(key_ref);
74 key_perm_t kperm;
75
76 if (is_key_possessed(key_ref))
77 kperm = key->perm >> 24;
78 else if (key->uid == current->fsuid)
79 kperm = key->perm >> 16;
80 else if (key->gid != -1 &&
81 key->perm & KEY_GRP_ALL &&
82 in_group_p(key->gid)
83 )
84 kperm = key->perm >> 8;
85 else
86 kperm = key->perm;
87 47
88 kperm = kperm & perm & KEY_ALL; 48static inline int key_permission(const key_ref_t key_ref, key_perm_t perm)
89
90 return kperm != 0;
91}
92
93static inline int key_task_groups_search(struct task_struct *tsk, gid_t gid)
94{
95 int ret;
96
97 task_lock(tsk);
98 ret = groups_search(tsk->group_info, gid);
99 task_unlock(tsk);
100 return ret;
101}
102
103static inline int key_task_permission(const key_ref_t key_ref,
104 struct task_struct *context,
105 key_perm_t perm)
106{ 49{
107 struct key *key = key_ref_to_ptr(key_ref); 50 return key_task_permission(key_ref, current, perm);
108 key_perm_t kperm;
109
110 if (is_key_possessed(key_ref)) {
111 kperm = key->perm >> 24;
112 }
113 else if (key->uid == context->fsuid) {
114 kperm = key->perm >> 16;
115 }
116 else if (key->gid != -1 &&
117 key->perm & KEY_GRP_ALL && (
118 key->gid == context->fsgid ||
119 key_task_groups_search(context, key->gid)
120 )
121 ) {
122 kperm = key->perm >> 8;
123 }
124 else {
125 kperm = key->perm;
126 }
127
128 kperm = kperm & perm & KEY_ALL;
129
130 return kperm == perm;
131
132} 51}
133 52
134extern key_ref_t lookup_user_key(struct task_struct *context, 53extern key_ref_t lookup_user_key(struct task_struct *context,