projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e85048f WB |
1 | dnl # |
| 2 | dnl # 2.6.38 API change | |
| 3 | dnl # ns_capable() was introduced | |
| 4 | dnl # | |
| 5 | AC_DEFUN([ZFS_AC_KERNEL_NS_CAPABLE], [ | |
| 6 | AC_MSG_CHECKING([whether ns_capable exists]) | |
| 7 | ZFS_LINUX_TRY_COMPILE([ | |
| 8 | #include <linux/capability.h> | |
| 9 | ],[ | |
| 10 | ns_capable((struct user_namespace *)NULL, CAP_SYS_ADMIN); | |
| 11 | ],[ | |
| 12 | AC_MSG_RESULT(yes) | |
| 13 | AC_DEFINE(HAVE_NS_CAPABLE, 1, | |
| 14 | [ns_capable exists]) | |
| 15 | ],[ | |
| 16 | AC_MSG_RESULT(no) | |
| 17 | ]) | |
| 18 | ]) | |
| 19 | ||
| 20 | dnl # | |
| 21 | dnl # 2.6.39 API change | |
| 22 | dnl # struct user_namespace was added to struct cred_t as | |
| 23 | dnl # cred->user_ns member | |
| 24 | dnl # Note that current_user_ns() was added in 2.6.28. | |
| 25 | dnl # | |
| 26 | AC_DEFUN([ZFS_AC_KERNEL_CRED_USER_NS], [ | |
| 27 | AC_MSG_CHECKING([whether cred_t->user_ns exists]) | |
| 28 | ZFS_LINUX_TRY_COMPILE([ | |
| 29 | #include <linux/cred.h> | |
| 30 | ],[ | |
| 31 | struct cred cr; | |
| 32 | cr.user_ns = (struct user_namespace *)NULL; | |
| 33 | ],[ | |
| 34 | AC_MSG_RESULT(yes) | |
| 35 | AC_DEFINE(HAVE_CRED_USER_NS, 1, | |
| 36 | [cred_t->user_ns exists]) | |
| 37 | ],[ | |
| 38 | AC_MSG_RESULT(no) | |
| 39 | ]) | |
| 40 | ]) | |
| 41 | ||
| 42 | dnl # | |
| 43 | dnl # 3.4 API change | |
| 44 | dnl # kuid_has_mapping() and kgid_has_mapping() were added to distinguish | |
| 45 | dnl # between internal kernel uids/gids and user namespace uids/gids. | |
| 46 | dnl # | |
| 47 | AC_DEFUN([ZFS_AC_KERNEL_KUID_HAS_MAPPING], [ | |
| 48 | AC_MSG_CHECKING([whether kuid_has_mapping/kgid_has_mapping exist]) | |
| 49 | ZFS_LINUX_TRY_COMPILE([ | |
| 50 | #include <linux/uidgid.h> | |
| 51 | ],[ | |
| 52 | kuid_has_mapping((struct user_namespace *)NULL, KUIDT_INIT(0)); | |
| 53 | kgid_has_mapping((struct user_namespace *)NULL, KGIDT_INIT(0)); | |
| 54 | ],[ | |
| 55 | AC_MSG_RESULT(yes) | |
| 56 | AC_DEFINE(HAVE_KUID_HAS_MAPPING, 1, | |
| 57 | [kuid_has_mapping/kgid_has_mapping exist]) | |
| 58 | ],[ | |
| 59 | AC_MSG_RESULT(no) | |
| 60 | ]) | |
| 61 | ]) | |
| 62 | ||
| 63 | AC_DEFUN([ZFS_AC_KERNEL_USERNS_CAPABILITIES], [ | |
| 64 | ZFS_AC_KERNEL_NS_CAPABLE | |
| 65 | ZFS_AC_KERNEL_CRED_USER_NS | |
| 66 | ZFS_AC_KERNEL_KUID_HAS_MAPPING | |
| 67 | ]) |