diff options
Diffstat (limited to 'include/linux/user_namespace.h')
| -rw-r--r-- | include/linux/user_namespace.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h index 6421cca2daa9..826de7a12a20 100644 --- a/include/linux/user_namespace.h +++ b/include/linux/user_namespace.h @@ -22,6 +22,7 @@ struct uid_gid_map { /* 64 bytes -- 1 cache line */ #define USERNS_INIT_FLAGS USERNS_SETGROUPS_ALLOWED +struct ucounts; struct user_namespace { struct uid_gid_map uid_map; struct uid_gid_map gid_map; @@ -44,15 +45,24 @@ struct user_namespace { struct ctl_table_set set; struct ctl_table_header *sysctls; #endif + struct ucounts *ucounts; int max_user_namespaces; +}; + +struct ucounts { + struct hlist_node node; + struct user_namespace *ns; + kuid_t uid; + atomic_t count; atomic_t user_namespaces; }; extern struct user_namespace init_user_ns; -extern bool setup_userns_sysctls(struct user_namespace *ns); -extern void retire_userns_sysctls(struct user_namespace *ns); -extern bool inc_user_namespaces(struct user_namespace *ns); -extern void dec_user_namespaces(struct user_namespace *ns); + +bool setup_userns_sysctls(struct user_namespace *ns); +void retire_userns_sysctls(struct user_namespace *ns); +struct ucounts *inc_user_namespaces(struct user_namespace *ns, kuid_t uid); +void dec_user_namespaces(struct ucounts *ucounts); #ifdef CONFIG_USER_NS |