#include <linux/nfsd/state.h>
#include <linux/nfsd/xdr4.h>
#include <linux/nfsd_idmap.h>
+#include <linux/nfs4.h>
+#include <linux/nfs4_acl.h>
#define NFSDDBG_FACILITY NFSDDBG_XDR
}
static int
-nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, struct iattr *iattr)
+nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, struct iattr *iattr,
+ struct nfs4_acl **acl)
{
int expected_len, len = 0;
u32 dummy32;
READ64(iattr->ia_size);
iattr->ia_valid |= ATTR_SIZE;
}
+ if (bmval[0] & FATTR4_WORD0_ACL) {
+ int nace, i;
+ struct nfs4_ace ace;
+
+ READ_BUF(4); len += 4;
+ READ32(nace);
+
+ *acl = nfs4_acl_new();
+ if (*acl == NULL) {
+ status = -ENOMEM;
+ goto out_nfserr;
+ }
+ defer_free(argp, (void (*)(const void *))nfs4_acl_free, *acl);
+
+ for (i = 0; i < nace; i++) {
+ READ_BUF(16); len += 16;
+ READ32(ace.type);
+ READ32(ace.flag);
+ READ32(ace.access_mask);
+ READ32(dummy32);
+ READ_BUF(dummy32);
+ len += XDR_QUADLEN(dummy32) << 2;
+ READMEM(buf, dummy32);
+ if (check_utf8(buf, dummy32))
+ return nfserr_inval;
+ ace.whotype = nfs4_acl_get_whotype(buf, dummy32);
+ status = 0;
+ if (ace.whotype != NFS4_ACL_WHO_NAMED)
+ ace.who = 0;
+ else if (ace.flag & NFS4_ACE_IDENTIFIER_GROUP)
+ status = nfsd_map_name_to_gid(argp->rqstp,
+ buf, dummy32, &ace.who);
+ else
+ status = nfsd_map_name_to_uid(argp->rqstp,
+ buf, dummy32, &ace.who);
+ if (status)
+ goto out_nfserr;
+ if (nfs4_acl_add_ace(*acl, ace.type, ace.flag,
+ ace.access_mask, ace.whotype, ace.who) != 0) {
+ status = -ENOMEM;
+ goto out_nfserr;
+ }
+ }
+ } else
+ *acl = NULL;
if (bmval[1] & FATTR4_WORD1_MODE) {
READ_BUF(4);
len += 4;
if ((status = check_filename(create->cr_name, create->cr_namelen, nfserr_inval)))
return status;
- if ((status = nfsd4_decode_fattr(argp, create->cr_bmval, &create->cr_iattr)))
+ if ((status = nfsd4_decode_fattr(argp, create->cr_bmval, &create->cr_iattr, &create->cr_acl)))
goto out;
DECODE_TAIL;
switch (open->op_createmode) {
case NFS4_CREATE_UNCHECKED:
case NFS4_CREATE_GUARDED:
- if ((status = nfsd4_decode_fattr(argp, open->op_bmval, &open->op_iattr)))
+ if ((status = nfsd4_decode_fattr(argp, open->op_bmval, &open->op_iattr, &open->op_acl)))
goto out;
break;
case NFS4_CREATE_EXCLUSIVE:
READ_BUF(sizeof(stateid_t));
READ32(setattr->sa_stateid.si_generation);
COPYMEM(&setattr->sa_stateid.si_opaque, sizeof(stateid_opaque_t));
- if ((status = nfsd4_decode_fattr(argp, setattr->sa_bmval, &setattr->sa_iattr)))
+ if ((status = nfsd4_decode_fattr(argp, setattr->sa_bmval, &setattr->sa_iattr, &setattr->sa_acl)))
goto out;
DECODE_TAIL;
};
static int
-nfsd4_encode_name(struct svc_rqst *rqstp, int group, uid_t id,
+nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, uid_t id, int group,
u32 **p, int *buflen)
{
int status;
if (*buflen < (XDR_QUADLEN(IDMAP_NAMESZ) << 2) + 4)
return nfserr_resource;
- if (group)
+ if (whotype != NFS4_ACL_WHO_NAMED)
+ status = nfs4_acl_write_who(whotype, (u8 *)(*p + 1));
+ else if (group)
status = nfsd_map_gid_to_name(rqstp, id, (u8 *)(*p + 1));
else
status = nfsd_map_uid_to_name(rqstp, id, (u8 *)(*p + 1));
static inline int
nfsd4_encode_user(struct svc_rqst *rqstp, uid_t uid, u32 **p, int *buflen)
{
- return nfsd4_encode_name(rqstp, uid, 0, p, buflen);
+ return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, uid, 0, p, buflen);
}
static inline int
nfsd4_encode_group(struct svc_rqst *rqstp, uid_t gid, u32 **p, int *buflen)
{
- return nfsd4_encode_name(rqstp, gid, 1, p, buflen);
+ return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, gid, 1, p, buflen);
+}
+
+static inline int
+nfsd4_encode_aclname(struct svc_rqst *rqstp, int whotype, uid_t id, int group,
+ u32 **p, int *buflen)
+{
+ return nfsd4_encode_name(rqstp, whotype, id, group, p, buflen);
}
u64 dummy64;
u32 *p = buffer;
int status;
+ struct nfs4_acl *acl = NULL;
BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1);
BUG_ON(bmval0 & ~NFSD_SUPPORTED_ATTRS_WORD0);
goto out;
fhp = &tempfh;
}
+ if (bmval0 & FATTR4_WORD0_ACL) {
+ status = nfsd4_get_nfs4_acl(rqstp, dentry, &acl);
+ if (status == -EOPNOTSUPP)
+ bmval0 &= ~FATTR4_WORD0_ACL;
+ else if (status < 0)
+ goto out_nfserr;
+ }
if ((buflen -= 16) < 0)
goto out_resource;
if ((buflen -= 12) < 0)
goto out_resource;
WRITE32(2);
+ /* XXX Should depend on exported filesystem (e.g.
+ * for acl support) */
WRITE32(NFSD_SUPPORTED_ATTRS_WORD0);
WRITE32(NFSD_SUPPORTED_ATTRS_WORD1);
}
goto out_resource;
WRITE32(0);
}
+ if (bmval0 & FATTR4_WORD0_ACL) {
+ struct nfs4_ace *ace;
+ struct list_head *h;
+
+ if (acl == NULL) {
+ if ((buflen -= 4) < 0)
+ goto out_resource;
+
+ WRITE32(0);
+ goto out_acl;
+ }
+ if ((buflen -= 4) < 0)
+ goto out_resource;
+ WRITE32(acl->naces);
+
+ list_for_each(h, &acl->ace_head) {
+ ace = list_entry(h, struct nfs4_ace, l_ace);
+
+ if ((buflen -= 4*3) < 0)
+ goto out_resource;
+ WRITE32(ace->type);
+ WRITE32(ace->flag);
+ WRITE32(ace->access_mask & NFS4_ACE_MASK_ALL);
+ status = nfsd4_encode_aclname(rqstp, ace->whotype,
+ ace->who, ace->flag & NFS4_ACE_IDENTIFIER_GROUP,
+ &p, &buflen);
+ if (status == nfserr_resource)
+ goto out_resource;
+ if (status)
+ goto out;
+ }
+ }
+out_acl:
if (bmval0 & FATTR4_WORD0_ACLSUPPORT) {
if ((buflen -= 4) < 0)
goto out_resource;
- WRITE32(0);
+ /* XXX: should depend on exported filesystem: */
+ WRITE32(ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL);
}
if (bmval0 & FATTR4_WORD0_CANSETTIME) {
if ((buflen -= 4) < 0)
status = nfs_ok;
out:
+ nfs4_acl_free(acl);
if (fhp == &tempfh)
fh_put(&tempfh);
return status;
projects / linux-flexiantxendom0-3.2.10.git / blobdiff