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-rw-r--r--include/linux/cred.h33
1 files changed, 17 insertions, 16 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h
index adadf71a7327..917dc5aeb1d4 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -17,6 +17,7 @@
#include <linux/key.h>
#include <linux/selinux.h>
#include <linux/atomic.h>
+#include <linux/uidgid.h>
struct user_struct;
struct cred;
@@ -26,14 +27,14 @@ struct inode;
* COW Supplementary groups list
*/
#define NGROUPS_SMALL 32
-#define NGROUPS_PER_BLOCK ((unsigned int)(PAGE_SIZE / sizeof(gid_t)))
+#define NGROUPS_PER_BLOCK ((unsigned int)(PAGE_SIZE / sizeof(kgid_t)))
struct group_info {
atomic_t usage;
int ngroups;
int nblocks;
- gid_t small_block[NGROUPS_SMALL];
- gid_t *blocks[0];
+ kgid_t small_block[NGROUPS_SMALL];
+ kgid_t *blocks[0];
};
/**
@@ -66,14 +67,14 @@ extern struct group_info init_groups;
extern void groups_free(struct group_info *);
extern int set_current_groups(struct group_info *);
extern int set_groups(struct cred *, struct group_info *);
-extern int groups_search(const struct group_info *, gid_t);
+extern int groups_search(const struct group_info *, kgid_t);
/* access the groups "array" with this macro */
#define GROUP_AT(gi, i) \
((gi)->blocks[(i) / NGROUPS_PER_BLOCK][(i) % NGROUPS_PER_BLOCK])
-extern int in_group_p(gid_t);
-extern int in_egroup_p(gid_t);
+extern int in_group_p(kgid_t);
+extern int in_egroup_p(kgid_t);
/*
* The common credentials for a thread group
@@ -122,14 +123,14 @@ struct cred {
#define CRED_MAGIC 0x43736564
#define CRED_MAGIC_DEAD 0x44656144
#endif
- uid_t uid; /* real UID of the task */
- gid_t gid; /* real GID of the task */
- uid_t suid; /* saved UID of the task */
- gid_t sgid; /* saved GID of the task */
- uid_t euid; /* effective UID of the task */
- gid_t egid; /* effective GID of the task */
- uid_t fsuid; /* UID for VFS ops */
- gid_t fsgid; /* GID for VFS ops */
+ kuid_t uid; /* real UID of the task */
+ kgid_t gid; /* real GID of the task */
+ kuid_t suid; /* saved UID of the task */
+ kgid_t sgid; /* saved GID of the task */
+ kuid_t euid; /* effective UID of the task */
+ kgid_t egid; /* effective GID of the task */
+ kuid_t fsuid; /* UID for VFS ops */
+ kgid_t fsgid; /* GID for VFS ops */
unsigned securebits; /* SUID-less security management */
kernel_cap_t cap_inheritable; /* caps our children can inherit */
kernel_cap_t cap_permitted; /* caps we're permitted */
@@ -146,7 +147,7 @@ struct cred {
void *security; /* subjective LSM security */
#endif
struct user_struct *user; /* real user ID subscription */
- struct user_namespace *user_ns; /* cached user->user_ns */
+ struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
struct group_info *group_info; /* supplementary groups for euid/fsgid */
struct rcu_head rcu; /* RCU deletion hook */
};
@@ -357,11 +358,11 @@ static inline void put_cred(const struct cred *_cred)
#define current_user() (current_cred_xxx(user))
#define current_security() (current_cred_xxx(security))
+extern struct user_namespace init_user_ns;
#ifdef CONFIG_USER_NS
#define current_user_ns() (current_cred_xxx(user_ns))
#define task_user_ns(task) (task_cred_xxx((task), user_ns))
#else
-extern struct user_namespace init_user_ns;
#define current_user_ns() (&init_user_ns)
#define task_user_ns(task) (&init_user_ns)
#endif