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Linux 6.3 compat: idmapped mount API changes

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Linux kernel 6.3 changed a bunch of APIs to use the dedicated idmap 
type for mounts (struct mnt_idmap), we need to detect these changes 
and make zfs work with the new APIs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Youzhong Yang <yyang@mathworks.com>
Closes #14682
This commit is contained in:
youzhongyang
2023-04-10 17:15:36 -04:00
committed by GitHub
parent d0cbd9feaf
commit d4dc53dad2
40 changed files with 823 additions and 296 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/zfs_acl.c
+16 -17
View File
@@ -1802,7 +1802,7 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, umode_t va_mode, zfs_acl_t *paclp,
*/
int
zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr,
vsecattr_t *vsecp, zfs_acl_ids_t *acl_ids, zuserns_t *mnt_ns)
vsecattr_t *vsecp, zfs_acl_ids_t *acl_ids, zidmap_t *mnt_ns)
{
int error;
zfsvfs_t *zfsvfs = ZTOZSB(dzp);
@@ -1981,7 +1981,7 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr)
return (SET_ERROR(ENOSYS));
if ((error = zfs_zaccess(zp, ACE_READ_ACL, 0, skipaclchk, cr,
kcred->user_ns)))
zfs_init_idmap)))
return (error);
mutex_enter(&zp->z_acl_lock);
@@ -2141,7 +2141,7 @@ zfs_setacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr)
return (SET_ERROR(EPERM));
if ((error = zfs_zaccess(zp, ACE_WRITE_ACL, 0, skipaclchk, cr,
kcred->user_ns)))
zfs_init_idmap)))
return (error);
error = zfs_vsec_2_aclp(zfsvfs, ZTOI(zp)->i_mode, vsecp, cr, &fuidp,
@@ -2286,7 +2286,7 @@ zfs_zaccess_dataset_check(znode_t *zp, uint32_t v4_mode)
*/
static int
zfs_zaccess_aces_check(znode_t *zp, uint32_t *working_mode,
boolean_t anyaccess, cred_t *cr, zuserns_t *mnt_ns)
boolean_t anyaccess, cred_t *cr, zidmap_t *mnt_ns)
{
zfsvfs_t *zfsvfs = ZTOZSB(zp);
zfs_acl_t *aclp;
@@ -2420,7 +2420,7 @@ zfs_has_access(znode_t *zp, cred_t *cr)
uint32_t have = ACE_ALL_PERMS;
if (zfs_zaccess_aces_check(zp, &have, B_TRUE, cr,
kcred->user_ns) != 0) {
zfs_init_idmap) != 0) {
uid_t owner;
owner = zfs_fuid_map_id(ZTOZSB(zp),
@@ -2451,7 +2451,7 @@ zfs_has_access(znode_t *zp, cred_t *cr)
*/
static int
zfs_zaccess_trivial(znode_t *zp, uint32_t *working_mode, cred_t *cr,
zuserns_t *mnt_ns)
zidmap_t *mnt_ns)
{
int err, mask;
int unmapped = 0;
@@ -2464,11 +2464,10 @@ zfs_zaccess_trivial(znode_t *zp, uint32_t *working_mode, cred_t *cr,
return (unmapped ? SET_ERROR(EPERM) : 0);
}
#if defined(HAVE_IOPS_PERMISSION_USERNS)
#if (defined(HAVE_IOPS_PERMISSION_USERNS) || \
defined(HAVE_IOPS_PERMISSION_IDMAP))
if (mnt_ns)
err = generic_permission(mnt_ns, ZTOI(zp), mask);
else
err = generic_permission(cr->user_ns, ZTOI(zp), mask);
#else
err = generic_permission(ZTOI(zp), mask);
#endif
@@ -2483,7 +2482,7 @@ zfs_zaccess_trivial(znode_t *zp, uint32_t *working_mode, cred_t *cr,
static int
zfs_zaccess_common(znode_t *zp, uint32_t v4_mode, uint32_t *working_mode,
boolean_t *check_privs, boolean_t skipaclchk, cred_t *cr, zuserns_t *mnt_ns)
boolean_t *check_privs, boolean_t skipaclchk, cred_t *cr, zidmap_t *mnt_ns)
{
zfsvfs_t *zfsvfs = ZTOZSB(zp);
int err;
@@ -2540,7 +2539,7 @@ zfs_zaccess_common(znode_t *zp, uint32_t v4_mode, uint32_t *working_mode,
static int
zfs_zaccess_append(znode_t *zp, uint32_t *working_mode, boolean_t *check_privs,
cred_t *cr, zuserns_t *mnt_ns)
cred_t *cr, zidmap_t *mnt_ns)
{
if (*working_mode != ACE_WRITE_DATA)
return (SET_ERROR(EACCES));
@@ -2612,7 +2611,7 @@ slow:
if ((error = zfs_enter(ZTOZSB(zdp), FTAG)) != 0)
return (error);
error = zfs_zaccess(zdp, ACE_EXECUTE, 0, B_FALSE, cr,
kcred->user_ns);
zfs_init_idmap);
zfs_exit(ZTOZSB(zdp), FTAG);
return (error);
}
@@ -2625,7 +2624,7 @@ slow:
*/
int
zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr,
zuserns_t *mnt_ns)
zidmap_t *mnt_ns)
{
uint32_t working_mode;
int error;
@@ -2774,7 +2773,7 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr,
*/
int
zfs_zaccess_rwx(znode_t *zp, mode_t mode, int flags, cred_t *cr,
zuserns_t *mnt_ns)
zidmap_t *mnt_ns)
{
return (zfs_zaccess(zp, zfs_unix_to_v4(mode >> 6), flags, B_FALSE, cr,
mnt_ns));
@@ -2788,7 +2787,7 @@ zfs_zaccess_unix(void *zp, int mode, cred_t *cr)
{
int v4_mode = zfs_unix_to_v4(mode >> 6);
return (zfs_zaccess(zp, v4_mode, 0, B_FALSE, cr, kcred->user_ns));
return (zfs_zaccess(zp, v4_mode, 0, B_FALSE, cr, zfs_init_idmap));
}
/* See zfs_zaccess_delete() */
@@ -2865,7 +2864,7 @@ static const boolean_t zfs_write_implies_delete_child = B_TRUE;
* zfs_write_implies_delete_child
*/
int
zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr, zuserns_t *mnt_ns)
zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr, zidmap_t *mnt_ns)
{
uint32_t wanted_dirperms;
uint32_t dzp_working_mode = 0;
@@ -2996,7 +2995,7 @@ zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr, zuserns_t *mnt_ns)
int
zfs_zaccess_rename(znode_t *sdzp, znode_t *szp, znode_t *tdzp,
znode_t *tzp, cred_t *cr, zuserns_t *mnt_ns)
znode_t *tzp, cred_t *cr, zidmap_t *mnt_ns)
{
int add_perm;
int error;