diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/nfsd/nfs3acl.c')
| -rw-r--r-- | ANDROID_3.4.5/fs/nfsd/nfs3acl.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/ANDROID_3.4.5/fs/nfsd/nfs3acl.c b/ANDROID_3.4.5/fs/nfsd/nfs3acl.c deleted file mode 100644 index a596e9d9..00000000 --- a/ANDROID_3.4.5/fs/nfsd/nfs3acl.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * Process version 3 NFSACL requests. - * - * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de> - */ - -#include "nfsd.h" -/* FIXME: nfsacl.h is a broken header */ -#include <linux/nfsacl.h> -#include <linux/gfp.h> -#include "cache.h" -#include "xdr3.h" -#include "vfs.h" - -#define RETURN_STATUS(st) { resp->status = (st); return (st); } - -/* - * NULL call. - */ -static __be32 -nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) -{ - return nfs_ok; -} - -/* - * Get the Access and/or Default ACL of a file. - */ -static __be32 nfsd3_proc_getacl(struct svc_rqst * rqstp, - struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp) -{ - svc_fh *fh; - struct posix_acl *acl; - __be32 nfserr = 0; - - fh = fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP); - if (nfserr) - RETURN_STATUS(nfserr); - - if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT)) - RETURN_STATUS(nfserr_inval); - resp->mask = argp->mask; - - if (resp->mask & (NFS_ACL|NFS_ACLCNT)) { - acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS); - if (IS_ERR(acl)) { - int err = PTR_ERR(acl); - - if (err == -ENODATA || err == -EOPNOTSUPP) - acl = NULL; - else { - nfserr = nfserrno(err); - goto fail; - } - } - if (acl == NULL) { - /* Solaris returns the inode's minimum ACL. */ - - struct inode *inode = fh->fh_dentry->d_inode; - acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL); - } - resp->acl_access = acl; - } - if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) { - /* Check how Solaris handles requests for the Default ACL - of a non-directory! */ - - acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT); - if (IS_ERR(acl)) { - int err = PTR_ERR(acl); - - if (err == -ENODATA || err == -EOPNOTSUPP) - acl = NULL; - else { - nfserr = nfserrno(err); - goto fail; - } - } - resp->acl_default = acl; - } - - /* resp->acl_{access,default} are released in nfs3svc_release_getacl. */ - RETURN_STATUS(0); - -fail: - posix_acl_release(resp->acl_access); - posix_acl_release(resp->acl_default); - RETURN_STATUS(nfserr); -} - -/* - * Set the Access and/or Default ACL of a file. - */ -static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp, - struct nfsd3_setaclargs *argp, - struct nfsd3_attrstat *resp) -{ - svc_fh *fh; - __be32 nfserr = 0; - - fh = fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR); - - if (!nfserr) { - nfserr = nfserrno( nfsd_set_posix_acl( - fh, ACL_TYPE_ACCESS, argp->acl_access) ); - } - if (!nfserr) { - nfserr = nfserrno( nfsd_set_posix_acl( - fh, ACL_TYPE_DEFAULT, argp->acl_default) ); - } - - /* argp->acl_{access,default} may have been allocated in - nfs3svc_decode_setaclargs. */ - posix_acl_release(argp->acl_access); - posix_acl_release(argp->acl_default); - RETURN_STATUS(nfserr); -} - -/* - * XDR decode functions - */ -static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p, - struct nfsd3_getaclargs *args) -{ - if (!(p = nfs3svc_decode_fh(p, &args->fh))) - return 0; - args->mask = ntohl(*p); p++; - - return xdr_argsize_check(rqstp, p); -} - - -static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p, - struct nfsd3_setaclargs *args) -{ - struct kvec *head = rqstp->rq_arg.head; - unsigned int base; - int n; - - if (!(p = nfs3svc_decode_fh(p, &args->fh))) - return 0; - args->mask = ntohl(*p++); - if (args->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) || - !xdr_argsize_check(rqstp, p)) - return 0; - - base = (char *)p - (char *)head->iov_base; - n = nfsacl_decode(&rqstp->rq_arg, base, NULL, - (args->mask & NFS_ACL) ? - &args->acl_access : NULL); - if (n > 0) - n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL, - (args->mask & NFS_DFACL) ? - &args->acl_default : NULL); - return (n > 0); -} - -/* - * XDR encode functions - */ - -/* GETACL */ -static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p, - struct nfsd3_getaclres *resp) -{ - struct dentry *dentry = resp->fh.fh_dentry; - - p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh); - if (resp->status == 0 && dentry && dentry->d_inode) { - struct inode *inode = dentry->d_inode; - struct kvec *head = rqstp->rq_res.head; - unsigned int base; - int n; - int w; - - *p++ = htonl(resp->mask); - if (!xdr_ressize_check(rqstp, p)) - return 0; - base = (char *)p - (char *)head->iov_base; - - rqstp->rq_res.page_len = w = nfsacl_size( - (resp->mask & NFS_ACL) ? resp->acl_access : NULL, - (resp->mask & NFS_DFACL) ? resp->acl_default : NULL); - while (w > 0) { - if (!rqstp->rq_respages[rqstp->rq_resused++]) - return 0; - w -= PAGE_SIZE; - } - - n = nfsacl_encode(&rqstp->rq_res, base, inode, - resp->acl_access, - resp->mask & NFS_ACL, 0); - if (n > 0) - n = nfsacl_encode(&rqstp->rq_res, base + n, inode, - resp->acl_default, - resp->mask & NFS_DFACL, - NFS_ACL_DEFAULT); - if (n <= 0) - return 0; - } else - if (!xdr_ressize_check(rqstp, p)) - return 0; - - return 1; -} - -/* SETACL */ -static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p, - struct nfsd3_attrstat *resp) -{ - p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh); - - return xdr_ressize_check(rqstp, p); -} - -/* - * XDR release functions - */ -static int nfs3svc_release_getacl(struct svc_rqst *rqstp, __be32 *p, - struct nfsd3_getaclres *resp) -{ - fh_put(&resp->fh); - posix_acl_release(resp->acl_access); - posix_acl_release(resp->acl_default); - return 1; -} - -#define nfs3svc_decode_voidargs NULL -#define nfs3svc_release_void NULL -#define nfsd3_setaclres nfsd3_attrstat -#define nfsd3_voidres nfsd3_voidargs -struct nfsd3_voidargs { int dummy; }; - -#define PROC(name, argt, rest, relt, cache, respsize) \ - { (svc_procfunc) nfsd3_proc_##name, \ - (kxdrproc_t) nfs3svc_decode_##argt##args, \ - (kxdrproc_t) nfs3svc_encode_##rest##res, \ - (kxdrproc_t) nfs3svc_release_##relt, \ - sizeof(struct nfsd3_##argt##args), \ - sizeof(struct nfsd3_##rest##res), \ - 0, \ - cache, \ - respsize, \ - } - -#define ST 1 /* status*/ -#define AT 21 /* attributes */ -#define pAT (1+AT) /* post attributes - conditional */ -#define ACL (1+NFS_ACL_MAX_ENTRIES*3) /* Access Control List */ - -static struct svc_procedure nfsd_acl_procedures3[] = { - PROC(null, void, void, void, RC_NOCACHE, ST), - PROC(getacl, getacl, getacl, getacl, RC_NOCACHE, ST+1+2*(1+ACL)), - PROC(setacl, setacl, setacl, fhandle, RC_NOCACHE, ST+pAT), -}; - -struct svc_version nfsd_acl_version3 = { - .vs_vers = 3, - .vs_nproc = 3, - .vs_proc = nfsd_acl_procedures3, - .vs_dispatch = nfsd_dispatch, - .vs_xdrsize = NFS3_SVC_XDRSIZE, - .vs_hidden = 0, -}; - |