/*
- * Copyright (c) 2006-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2006-2019 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <sys/ubc_internal.h>
#include <sys/fcntl.h>
#include <sys/quota.h>
-#include <sys/uio_internal.h>
#include <sys/domain.h>
#include <libkern/OSAtomic.h>
#include <kern/thread_call.h>
#include <netinet/in.h>
#include <net/kpi_interface.h>
+#if CONFIG_NFS4
+/*
+ * NFS_MAX_WHO is the maximum length of a string representation used
+ * in as an ace who, owner, or group. There is no explicit limit in the
+ * protocol, however the kauth routines have a limit of MAPATHLEN for
+ * strings including the trailing null character, so we impose that
+ * limit. This should be changed if kauth routines change.
+ *
+ * We also want some reasonable maximum, as 32 bits worth of string length
+ * is liable to cause problems. At the very least this limit must guarantee
+ * that any express that contains the 32 bit length from off the wire used in
+ * allocations does not overflow.
+ */
+#define NFS_MAX_WHO MAXPATHLEN
/*
- * NFSv4 SETCLIENTID
+ * Create the unique client ID to use for this mount.
+ *
+ * Format: unique ID + en0_address + server_address + mntfromname + mntonname
+ *
+ * We could possibly use one client ID for all mounts of the same server;
+ * however, that would complicate some aspects of state management.
+ *
+ * Each mount socket connection sends a SETCLIENTID. If the ID is the same but
+ * the verifier (mounttime) changes, then all previous (mounts') state gets dropped.
+ *
+ * State is typically managed per-mount and in order to keep it that way
+ * each mount needs to use a separate client ID. However, we also need to
+ * make sure that each mount uses the same client ID each time.
+ *
+ * In an attempt to differentiate mounts we include the mntfromname and mntonname
+ * strings to the client ID (as long as they fit). We also make sure that the
+ * value does not conflict with any existing values in use (changing the unique ID).
+ *
+ * Note that info such as the server's address may change over the lifetime of the
+ * mount. But the client ID will not be updated because we don't want it changing
+ * simply because we switched to a different server address.
*/
int
-nfs4_setclientid(struct nfsmount *nmp)
+nfs4_init_clientid(struct nfsmount *nmp)
{
+ struct nfs_client_id *ncip, *ncip2;
struct sockaddr *saddr;
- uint64_t verifier;
- char id[128];
- int idlen, len, error = 0, status, numops;
- u_int64_t xid;
- vfs_context_t ctx;
- thread_t thd;
- kauth_cred_t cred;
- struct nfsm_chain nmreq, nmrep;
+ int error, len, len2, cmp;
+ struct vfsstatfs *vsfs;
static uint8_t en0addr[6];
static uint8_t en0addr_set = 0;
- lck_mtx_lock(nfs_request_mutex);
+ lck_mtx_lock(nfs_global_mutex);
if (!en0addr_set) {
ifnet_t interface = NULL;
error = ifnet_find_by_name("en0", &interface);
- if (!error)
+ if (!error) {
error = ifnet_lladdr_copy_bytes(interface, en0addr, sizeof(en0addr));
- if (error)
- printf("nfs4_setclientid: error getting en0 address, %d\n", error);
- if (!error)
+ }
+ if (error) {
+ printf("nfs4_init_clientid: error getting en0 address, %d\n", error);
+ }
+ if (!error) {
en0addr_set = 1;
- error = 0;
- if (interface)
+ }
+ if (interface) {
ifnet_release(interface);
+ }
+ }
+ lck_mtx_unlock(nfs_global_mutex);
+
+ MALLOC(ncip, struct nfs_client_id *, sizeof(struct nfs_client_id), M_TEMP, M_WAITOK);
+ if (!ncip) {
+ return ENOMEM;
+ }
+
+ vsfs = vfs_statfs(nmp->nm_mountp);
+ saddr = nmp->nm_saddr;
+ ncip->nci_idlen = sizeof(uint32_t) + sizeof(en0addr) + saddr->sa_len +
+ strlen(vsfs->f_mntfromname) + 1 + strlen(vsfs->f_mntonname) + 1;
+ if (ncip->nci_idlen > NFS4_OPAQUE_LIMIT) {
+ ncip->nci_idlen = NFS4_OPAQUE_LIMIT;
+ }
+ MALLOC(ncip->nci_id, char *, ncip->nci_idlen, M_TEMP, M_WAITOK);
+ if (!ncip->nci_id) {
+ FREE(ncip, M_TEMP);
+ return ENOMEM;
+ }
+
+ *(uint32_t*)ncip->nci_id = 0;
+ len = sizeof(uint32_t);
+ len2 = min(sizeof(en0addr), ncip->nci_idlen - len);
+ bcopy(en0addr, &ncip->nci_id[len], len2);
+ len += sizeof(en0addr);
+ len2 = min(saddr->sa_len, ncip->nci_idlen - len);
+ bcopy(saddr, &ncip->nci_id[len], len2);
+ len += len2;
+ if (len < ncip->nci_idlen) {
+ len2 = strlcpy(&ncip->nci_id[len], vsfs->f_mntfromname, ncip->nci_idlen - len);
+ if (len2 < (ncip->nci_idlen - len)) {
+ len += len2 + 1;
+ } else {
+ len = ncip->nci_idlen;
+ }
+ }
+ if (len < ncip->nci_idlen) {
+ len2 = strlcpy(&ncip->nci_id[len], vsfs->f_mntonname, ncip->nci_idlen - len);
+ if (len2 < (ncip->nci_idlen - len)) {
+ len += len2 + 1;
+ } else {
+ len = ncip->nci_idlen;
+ }
+ }
+
+ /* make sure the ID is unique, and add it to the sorted list */
+ lck_mtx_lock(nfs_global_mutex);
+ TAILQ_FOREACH(ncip2, &nfsclientids, nci_link) {
+ if (ncip->nci_idlen > ncip2->nci_idlen) {
+ continue;
+ }
+ if (ncip->nci_idlen < ncip2->nci_idlen) {
+ break;
+ }
+ cmp = bcmp(ncip->nci_id + sizeof(uint32_t),
+ ncip2->nci_id + sizeof(uint32_t),
+ ncip->nci_idlen - sizeof(uint32_t));
+ if (cmp > 0) {
+ continue;
+ }
+ if (cmp < 0) {
+ break;
+ }
+ if (*(uint32_t*)ncip->nci_id > *(uint32_t*)ncip2->nci_id) {
+ continue;
+ }
+ if (*(uint32_t*)ncip->nci_id < *(uint32_t*)ncip2->nci_id) {
+ break;
+ }
+ *(uint32_t*)ncip->nci_id += 1;
}
- lck_mtx_unlock(nfs_request_mutex);
+ if (*(uint32_t*)ncip->nci_id) {
+ printf("nfs client ID collision (%d) for %s on %s\n", *(uint32_t*)ncip->nci_id,
+ vsfs->f_mntfromname, vsfs->f_mntonname);
+ }
+ if (ncip2) {
+ TAILQ_INSERT_BEFORE(ncip2, ncip, nci_link);
+ } else {
+ TAILQ_INSERT_TAIL(&nfsclientids, ncip, nci_link);
+ }
+ nmp->nm_longid = ncip;
+ lck_mtx_unlock(nfs_global_mutex);
- ctx = vfs_context_kernel(); /* XXX */
- thd = vfs_context_thread(ctx);
- cred = vfs_context_ucred(ctx);
+ return 0;
+}
+
+/*
+ * NFSv4 SETCLIENTID
+ */
+int
+nfs4_setclientid(struct nfsmount *nmp)
+{
+ uint64_t verifier, xid;
+ int error = 0, status, numops;
+ uint32_t bitmap[NFS_ATTR_BITMAP_LEN];
+ thread_t thd;
+ kauth_cred_t cred;
+ struct nfsm_chain nmreq, nmrep;
+ struct sockaddr_storage ss;
+ void *sinaddr = NULL;
+ char raddr[MAX_IPv6_STR_LEN];
+ char uaddr[MAX_IPv6_STR_LEN + 16];
+ int ualen = 0;
+ in_port_t port;
+
+ thd = current_thread();
+ cred = IS_VALID_CRED(nmp->nm_mcred) ? nmp->nm_mcred : vfs_context_ucred(vfs_context_kernel());
+ kauth_cred_ref(cred);
nfsm_chain_null(&nmreq);
nfsm_chain_null(&nmrep);
- /* ID: en0_address + server_address */
- idlen = len = sizeof(en0addr);
- bcopy(en0addr, &id[0], len);
- saddr = mbuf_data(nmp->nm_nam);
- len = min(saddr->sa_len, sizeof(id)-idlen);
- bcopy(saddr, &id[idlen], len);
- idlen += len;
+ if (!nmp->nm_longid) {
+ error = nfs4_init_clientid(nmp);
+ }
// SETCLIENTID
numops = 1;
- nfsm_chain_build_alloc_init(error, &nmreq, 14 * NFSX_UNSIGNED + idlen);
- nfsm_chain_add_compound_header(error, &nmreq, "setclientid", numops);
+ nfsm_chain_build_alloc_init(error, &nmreq, 14 * NFSX_UNSIGNED + nmp->nm_longid->nci_idlen);
+ nfsm_chain_add_compound_header(error, &nmreq, "setclid", nmp->nm_minor_vers, numops);
numops--;
nfsm_chain_add_32(error, &nmreq, NFS_OP_SETCLIENTID);
/* nfs_client_id4 client; */
nfsm_chain_add_64(error, &nmreq, nmp->nm_mounttime);
- nfsm_chain_add_32(error, &nmreq, idlen);
- nfsm_chain_add_opaque(error, &nmreq, id, idlen);
+ nfsm_chain_add_32(error, &nmreq, nmp->nm_longid->nci_idlen);
+ nfsm_chain_add_opaque(error, &nmreq, nmp->nm_longid->nci_id, nmp->nm_longid->nci_idlen);
+ nfsmout_if(error);
/* cb_client4 callback; */
- /* We don't provide callback info yet */
- nfsm_chain_add_32(error, &nmreq, 0); /* callback program */
- nfsm_chain_add_string(error, &nmreq, "", 0); /* callback r_netid */
- nfsm_chain_add_string(error, &nmreq, "", 0); /* callback r_addr */
- nfsm_chain_add_32(error, &nmreq, 0); /* callback_ident */
+ if (!NMFLAG(nmp, NOCALLBACK) && nmp->nm_cbid && nfs4_cb_port &&
+ !sock_getsockname(nmp->nm_nso->nso_so, (struct sockaddr*)&ss, sizeof(ss))) {
+ if (ss.ss_family == AF_INET) {
+ sinaddr = &((struct sockaddr_in*)&ss)->sin_addr;
+ port = nfs4_cb_port;
+ } else if (ss.ss_family == AF_INET6) {
+ sinaddr = &((struct sockaddr_in6*)&ss)->sin6_addr;
+ port = nfs4_cb_port6;
+ }
+ if (sinaddr && port && (inet_ntop(ss.ss_family, sinaddr, raddr, sizeof(raddr)) == raddr)) {
+ /* assemble r_addr = universal address (nmp->nm_nso->nso_so source IP addr + port) */
+ ualen = snprintf(uaddr, sizeof(uaddr), "%s.%d.%d", raddr,
+ ((port >> 8) & 0xff),
+ (port & 0xff));
+ /* make sure it fit, give up if it didn't */
+ if (ualen >= (int)sizeof(uaddr)) {
+ ualen = 0;
+ }
+ }
+ }
+ if (ualen > 0) {
+ /* add callback info */
+ nfsm_chain_add_32(error, &nmreq, NFS4_CALLBACK_PROG); /* callback program */
+ if (ss.ss_family == AF_INET) {
+ nfsm_chain_add_string(error, &nmreq, "tcp", 3); /* callback r_netid */
+ } else if (ss.ss_family == AF_INET6) {
+ nfsm_chain_add_string(error, &nmreq, "tcp6", 4); /* callback r_netid */
+ }
+ nfsm_chain_add_string(error, &nmreq, uaddr, ualen); /* callback r_addr */
+ nfsm_chain_add_32(error, &nmreq, nmp->nm_cbid); /* callback_ident */
+ } else {
+ /* don't provide valid callback info */
+ nfsm_chain_add_32(error, &nmreq, 0); /* callback program */
+ nfsm_chain_add_string(error, &nmreq, "", 0); /* callback r_netid */
+ nfsm_chain_add_string(error, &nmreq, "", 0); /* callback r_addr */
+ nfsm_chain_add_32(error, &nmreq, 0); /* callback_ident */
+ }
nfsm_chain_build_done(error, &nmreq);
nfsm_assert(error, (numops == 0), EPROTO);
nfsmout_if(error);
- error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, thd, cred, R_SETUP, &nmrep, &xid, &status);
+ error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, thd, cred, NULL, R_SETUP, &nmrep, &xid, &status);
nfsm_chain_skip_tag(error, &nmrep);
nfsm_chain_get_32(error, &nmrep, numops);
+ if (!error && (numops != 1) && status) {
+ error = status;
+ }
nfsm_chain_op_check(error, &nmrep, NFS_OP_SETCLIENTID);
- if (error == NFSERR_CLID_INUSE)
+ if (error == NFSERR_CLID_INUSE) {
printf("nfs4_setclientid: client ID in use?\n");
+ }
nfsmout_if(error);
nfsm_chain_get_64(error, &nmrep, nmp->nm_clientid);
nfsm_chain_get_64(error, &nmrep, verifier);
// SETCLIENTID_CONFIRM
numops = 1;
- nfsm_chain_build_alloc_init(error, &nmreq, 13 * NFSX_UNSIGNED);
- nfsm_chain_add_compound_header(error, &nmreq, "setclientid_confirm", numops);
+ nfsm_chain_build_alloc_init(error, &nmreq, 15 * NFSX_UNSIGNED);
+ nfsm_chain_add_compound_header(error, &nmreq, "setclid_conf", nmp->nm_minor_vers, numops);
numops--;
nfsm_chain_add_32(error, &nmreq, NFS_OP_SETCLIENTID_CONFIRM);
nfsm_chain_add_64(error, &nmreq, nmp->nm_clientid);
nfsm_chain_build_done(error, &nmreq);
nfsm_assert(error, (numops == 0), EPROTO);
nfsmout_if(error);
- error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, thd, cred, R_SETUP, &nmrep, &xid, &status);
+ error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, thd, cred, NULL, R_SETUP, &nmrep, &xid, &status);
nfsm_chain_skip_tag(error, &nmrep);
nfsm_chain_get_32(error, &nmrep, numops);
nfsm_chain_op_check(error, &nmrep, NFS_OP_SETCLIENTID_CONFIRM);
- if (error)
+ if (error) {
printf("nfs4_setclientid: confirm error %d\n", error);
+ }
+ lck_mtx_lock(&nmp->nm_lock);
+ if (!error) {
+ nmp->nm_state |= NFSSTA_CLIENTID;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+
+ nfsmout_if(error || !nmp->nm_dnp);
+
+ /* take the opportunity to refresh fs attributes too */
+ // PUTFH, GETATTR(FS)
+ numops = 2;
+ nfsm_chain_build_alloc_init(error, &nmreq, 23 * NFSX_UNSIGNED);
+ nfsm_chain_add_compound_header(error, &nmreq, "setclid_attr", nmp->nm_minor_vers, numops);
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_PUTFH);
+ nfsm_chain_add_fh(error, &nmreq, nmp->nm_vers, nmp->nm_dnp->n_fhp, nmp->nm_dnp->n_fhsize);
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_GETATTR);
+ NFS_CLEAR_ATTRIBUTES(bitmap);
+ NFS4_PER_FS_ATTRIBUTES(bitmap);
+ nfsm_chain_add_bitmap(error, &nmreq, bitmap, NFS_ATTR_BITMAP_LEN);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsm_assert(error, (numops == 0), EPROTO);
+ nfsmout_if(error);
+ error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, thd, cred, NULL, R_SETUP, &nmrep, &xid, &status);
+ nfsm_chain_skip_tag(error, &nmrep);
+ nfsm_chain_get_32(error, &nmrep, numops);
+ lck_mtx_lock(&nmp->nm_lock);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_PUTFH);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_GETATTR);
+ if (!error) {
+ error = nfs4_parsefattr(&nmrep, &nmp->nm_fsattr, NULL, NULL, NULL, NULL);
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ if (error) { /* ignore any error from the getattr */
+ error = 0;
+ }
nfsmout:
nfsm_chain_cleanup(&nmreq);
nfsm_chain_cleanup(&nmrep);
- if (error)
+ kauth_cred_unref(&cred);
+ if (error) {
printf("nfs4_setclientid failed, %d\n", error);
- return (error);
+ }
+ return error;
}
/*
- * periodic timer to renew lease state on server
+ * renew/check lease state on server
*/
-void
-nfs4_renew_timer(void *param0, __unused void *param1)
+int
+nfs4_renew(struct nfsmount *nmp, int rpcflag)
{
- struct nfsmount *nmp = param0;
- int error = 0, status, numops, interval;
+ int error = 0, status, numops;
u_int64_t xid;
- vfs_context_t ctx;
struct nfsm_chain nmreq, nmrep;
+ kauth_cred_t cred;
- ctx = vfs_context_kernel(); /* XXX */
+ cred = IS_VALID_CRED(nmp->nm_mcred) ? nmp->nm_mcred : vfs_context_ucred(vfs_context_kernel());
+ kauth_cred_ref(cred);
nfsm_chain_null(&nmreq);
nfsm_chain_null(&nmrep);
// RENEW
numops = 1;
nfsm_chain_build_alloc_init(error, &nmreq, 8 * NFSX_UNSIGNED);
- nfsm_chain_add_compound_header(error, &nmreq, "renew", numops);
+ nfsm_chain_add_compound_header(error, &nmreq, "renew", nmp->nm_minor_vers, numops);
numops--;
nfsm_chain_add_32(error, &nmreq, NFS_OP_RENEW);
nfsm_chain_add_64(error, &nmreq, nmp->nm_clientid);
nfsm_chain_build_done(error, &nmreq);
nfsm_assert(error, (numops == 0), EPROTO);
nfsmout_if(error);
- error = nfs_request(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND, ctx, &nmrep, &xid, &status);
+ error = nfs_request2(NULL, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND,
+ current_thread(), cred, NULL, rpcflag, &nmrep, &xid, &status);
nfsm_chain_skip_tag(error, &nmrep);
nfsm_chain_get_32(error, &nmrep, numops);
nfsm_chain_op_check(error, &nmrep, NFS_OP_RENEW);
nfsmout:
- if (error)
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ kauth_cred_unref(&cred);
+ return error;
+}
+
+
+/*
+ * periodic timer to renew lease state on server
+ */
+void
+nfs4_renew_timer(void *param0, __unused void *param1)
+{
+ struct nfsmount *nmp = param0;
+ u_int64_t clientid;
+ int error = 0, interval;
+
+ lck_mtx_lock(&nmp->nm_lock);
+ clientid = nmp->nm_clientid;
+ if ((nmp->nm_state & NFSSTA_RECOVER) || !(nmp->nm_sockflags & NMSOCK_READY)) {
+ lck_mtx_unlock(&nmp->nm_lock);
+ goto out;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+
+ error = nfs4_renew(nmp, R_RECOVER);
+out:
+ if (error == ETIMEDOUT) {
+ nfs_need_reconnect(nmp);
+ } else if (error) {
printf("nfs4_renew_timer: error %d\n", error);
+ }
+ lck_mtx_lock(&nmp->nm_lock);
+ if (error && (error != ETIMEDOUT) &&
+ (nmp->nm_clientid == clientid) && !(nmp->nm_state & NFSSTA_RECOVER)) {
+ printf("nfs4_renew_timer: error %d, initiating recovery\n", error);
+ nfs_need_recover(nmp, error);
+ }
+
+ interval = nmp->nm_fsattr.nfsa_lease / (error ? 4 : 2);
+ if ((interval < 1) || (nmp->nm_state & NFSSTA_RECOVER)) {
+ interval = 1;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ nfs_interval_timer_start(nmp->nm_renew_timer, interval * 1000);
+}
+
+/*
+ * get the list of supported security flavors
+ *
+ * How we get them depends on what args we are given:
+ *
+ * FH? Name? Action
+ * ----- ----- ------
+ * YES YES Use the fh and name provided
+ * YES NO 4.1-only just use the fh provided
+ * NO YES Use the node's (or root) fh and the name provided
+ * NO NO Use the node's parent and the node's name (4.1 will just use node's fh)
+ */
+int
+nfs4_secinfo_rpc(struct nfsmount *nmp, struct nfsreq_secinfo_args *siap, kauth_cred_t cred, uint32_t *sec, int *seccountp)
+{
+ int error = 0, status, nfsvers, numops, namelen, fhsize;
+ vnode_t dvp = NULLVP;
+ nfsnode_t np, dnp;
+ u_char *fhp;
+ const char *vname = NULL, *name;
+ uint64_t xid;
+ struct nfsm_chain nmreq, nmrep;
+
+ *seccountp = 0;
+ if (nfs_mount_gone(nmp)) {
+ return ENXIO;
+ }
+ nfsvers = nmp->nm_vers;
+ np = siap->rsia_np;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ fhp = siap->rsia_fh;
+ fhsize = fhp ? siap->rsia_fhsize : 0;
+ name = siap->rsia_name;
+ namelen = name ? siap->rsia_namelen : 0;
+ if (name && !namelen) {
+ namelen = strlen(name);
+ }
+ if (!fhp && name) {
+ if (!np) { /* use PUTROOTFH */
+ goto gotargs;
+ }
+ fhp = np->n_fhp;
+ fhsize = np->n_fhsize;
+ }
+ if (fhp && name) {
+ goto gotargs;
+ }
+
+ if (!np) {
+ return EIO;
+ }
+ nfs_node_lock_force(np);
+ if ((vnode_vtype(NFSTOV(np)) != VDIR) && np->n_sillyrename) {
+ /*
+ * The node's been sillyrenamed, so we need to use
+ * the sillyrename directory/name to do the open.
+ */
+ struct nfs_sillyrename *nsp = np->n_sillyrename;
+ dnp = nsp->nsr_dnp;
+ dvp = NFSTOV(dnp);
+ if ((error = vnode_get(dvp))) {
+ dvp = NULLVP;
+ nfs_node_unlock(np);
+ goto nfsmout;
+ }
+ fhp = dnp->n_fhp;
+ fhsize = dnp->n_fhsize;
+ name = nsp->nsr_name;
+ namelen = nsp->nsr_namlen;
+ } else {
+ /*
+ * [sigh] We can't trust VFS to get the parent right for named
+ * attribute nodes. (It likes to reparent the nodes after we've
+ * created them.) Luckily we can probably get the right parent
+ * from the n_parent we have stashed away.
+ */
+ if ((np->n_vattr.nva_flags & NFS_FFLAG_IS_ATTR) &&
+ (((dvp = np->n_parent)) && (error = vnode_get(dvp)))) {
+ dvp = NULL;
+ }
+ if (!dvp) {
+ dvp = vnode_getparent(NFSTOV(np));
+ }
+ vname = vnode_getname(NFSTOV(np));
+ if (!dvp || !vname) {
+ if (!error) {
+ error = EIO;
+ }
+ nfs_node_unlock(np);
+ goto nfsmout;
+ }
+ dnp = VTONFS(dvp);
+ fhp = dnp->n_fhp;
+ fhsize = dnp->n_fhsize;
+ name = vname;
+ namelen = strnlen(vname, MAXPATHLEN);
+ }
+ nfs_node_unlock(np);
+
+gotargs:
+ // PUT(ROOT)FH + SECINFO
+ numops = 2;
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ 4 * NFSX_UNSIGNED + NFSX_FH(nfsvers) + nfsm_rndup(namelen));
+ nfsm_chain_add_compound_header(error, &nmreq, "secinfo", nmp->nm_minor_vers, numops);
+ numops--;
+ if (fhp) {
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_PUTFH);
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, fhp, fhsize);
+ } else {
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_PUTROOTFH);
+ }
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_SECINFO);
+ nfsm_chain_add_name(error, &nmreq, name, namelen, nmp);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsm_assert(error, (numops == 0), EPROTO);
+ nfsmout_if(error);
+ error = nfs_request2(np, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND,
+ current_thread(), cred, NULL, 0, &nmrep, &xid, &status);
+ nfsm_chain_skip_tag(error, &nmrep);
+ nfsm_chain_get_32(error, &nmrep, numops);
+ nfsm_chain_op_check(error, &nmrep, fhp ? NFS_OP_PUTFH : NFS_OP_PUTROOTFH);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_SECINFO);
+ nfsmout_if(error);
+ error = nfsm_chain_get_secinfo(&nmrep, sec, seccountp);
+nfsmout:
nfsm_chain_cleanup(&nmreq);
nfsm_chain_cleanup(&nmrep);
+ if (vname) {
+ vnode_putname(vname);
+ }
+ if (dvp != NULLVP) {
+ vnode_put(dvp);
+ }
+ return error;
+}
+#endif /* CONFIG_NFS4 */
+
+/*
+ * Parse an NFSv4 SECINFO array to an array of pseudo flavors.
+ * (Note: also works for MOUNTv3 security arrays.)
+ */
+int
+nfsm_chain_get_secinfo(struct nfsm_chain *nmc, uint32_t *sec, int *seccountp)
+{
+ int error = 0, secmax, seccount, srvcount;
+ uint32_t flavor;
+
+#if CONFIG_NFS_GSS
+ uint32_t val;
+ u_char oid[12];
+#endif
+
+ seccount = srvcount = 0;
+ secmax = *seccountp;
+ *seccountp = 0;
+
+ nfsm_chain_get_32(error, nmc, srvcount);
+ while (!error && (srvcount > 0) && (seccount < secmax)) {
+ nfsm_chain_get_32(error, nmc, flavor);
+ nfsmout_if(error);
+ switch (flavor) {
+ case RPCAUTH_NONE:
+ case RPCAUTH_SYS:
+#if CONFIG_NFS_GSS
+ case RPCAUTH_KRB5:
+ case RPCAUTH_KRB5I:
+ case RPCAUTH_KRB5P:
+#endif /* CONFIG_NFS_GSS */
+ sec[seccount++] = flavor;
+ break;
+#if CONFIG_NFS_GSS
+ case RPCSEC_GSS:
+ /* we only recognize KRB5, KRB5I, KRB5P */
+ nfsm_chain_get_32(error, nmc, val); /* OID length */
+ nfsmout_if(error);
+ if (val != sizeof(krb5_mech_oid)) {
+ nfsm_chain_adv(error, nmc, val);
+ nfsm_chain_adv(error, nmc, 2 * NFSX_UNSIGNED);
+ break;
+ }
+ nfsm_chain_get_opaque(error, nmc, val, oid); /* OID bytes */
+ nfsmout_if(error);
+ if (bcmp(oid, krb5_mech_oid, sizeof(krb5_mech_oid))) {
+ nfsm_chain_adv(error, nmc, 2 * NFSX_UNSIGNED);
+ break;
+ }
+ nfsm_chain_get_32(error, nmc, val); /* QOP */
+ nfsm_chain_get_32(error, nmc, val); /* SERVICE */
+ nfsmout_if(error);
+ switch (val) {
+ case RPCSEC_GSS_SVC_NONE:
+ sec[seccount++] = RPCAUTH_KRB5;
+ break;
+ case RPCSEC_GSS_SVC_INTEGRITY:
+ sec[seccount++] = RPCAUTH_KRB5I;
+ break;
+ case RPCSEC_GSS_SVC_PRIVACY:
+ sec[seccount++] = RPCAUTH_KRB5P;
+ break;
+ }
+ break;
+#endif /* CONFIG_NFS_GSS */
+ }
+ srvcount--;
+ }
+nfsmout:
+ if (!error) {
+ *seccountp = seccount;
+ }
+ return error;
+}
+
+#if CONFIG_NFS4
+/*
+ * Fetch the FS_LOCATIONS attribute for the node found at directory/name.
+ */
+int
+nfs4_get_fs_locations(
+ struct nfsmount *nmp,
+ nfsnode_t dnp,
+ u_char *fhp,
+ int fhsize,
+ const char *name,
+ vfs_context_t ctx,
+ struct nfs_fs_locations *nfslsp)
+{
+ int error = 0, numops, status;
+ uint32_t bitmap[NFS_ATTR_BITMAP_LEN];
+ struct nfsreq rq, *req = &rq;
+ struct nfsreq_secinfo_args si;
+ struct nfsm_chain nmreq, nmrep;
+ uint64_t xid;
+
+ if (!fhp && dnp) {
+ fhp = dnp->n_fhp;
+ fhsize = dnp->n_fhsize;
+ }
+ if (!fhp) {
+ return EINVAL;
+ }
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ NFSREQ_SECINFO_SET(&si, NULL, fhp, fhsize, name, 0);
+ numops = 3;
+ nfsm_chain_build_alloc_init(error, &nmreq, 18 * NFSX_UNSIGNED);
+ nfsm_chain_add_compound_header(error, &nmreq, "fs_locations", nmp->nm_minor_vers, numops);
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_PUTFH);
+ nfsm_chain_add_fh(error, &nmreq, NFS_VER4, fhp, fhsize);
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_LOOKUP);
+ nfsm_chain_add_name(error, &nmreq, name, strlen(name), nmp);
+ numops--;
+ nfsm_chain_add_32(error, &nmreq, NFS_OP_GETATTR);
+ NFS_CLEAR_ATTRIBUTES(bitmap);
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_FS_LOCATIONS);
+ nfsm_chain_add_bitmap(error, &nmreq, bitmap, NFS_ATTR_BITMAP_LEN);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsm_assert(error, (numops == 0), EPROTO);
+ nfsmout_if(error);
+ error = nfs_request_async(dnp, nmp->nm_mountp, &nmreq, NFSPROC4_COMPOUND,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), &si, 0, NULL, &req);
+ if (!error) {
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ }
+ nfsm_chain_skip_tag(error, &nmrep);
+ nfsm_chain_get_32(error, &nmrep, numops);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_PUTFH);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_LOOKUP);
+ nfsm_chain_op_check(error, &nmrep, NFS_OP_GETATTR);
+ nfsmout_if(error);
+ error = nfs4_parsefattr(&nmrep, NULL, NULL, NULL, NULL, nfslsp);
+nfsmout:
+ nfsm_chain_cleanup(&nmrep);
+ nfsm_chain_cleanup(&nmreq);
+ return error;
+}
+
+/*
+ * Referral trigger nodes may not have many attributes provided by the
+ * server, so put some default values in place.
+ */
+void
+nfs4_default_attrs_for_referral_trigger(
+ nfsnode_t dnp,
+ char *name,
+ int namelen,
+ struct nfs_vattr *nvap,
+ fhandle_t *fhp)
+{
+ struct timespec now;
+ nanotime(&now);
+ int len;
+
+ nvap->nva_flags = NFS_FFLAG_TRIGGER | NFS_FFLAG_TRIGGER_REFERRAL;
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_TYPE)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_TYPE);
+ nvap->nva_type = VDIR;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_FSID)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_FSID);
+ nvap->nva_fsid.major = 0;
+ nvap->nva_fsid.minor = 0;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_OWNER) && dnp) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_OWNER);
+ nvap->nva_uid = dnp->n_vattr.nva_uid;
+ nvap->nva_uuuid = dnp->n_vattr.nva_uuuid;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_OWNER_GROUP) && dnp) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_OWNER_GROUP);
+ nvap->nva_gid = dnp->n_vattr.nva_gid;
+ nvap->nva_guuid = dnp->n_vattr.nva_guuid;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_MODE)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_MODE);
+ nvap->nva_mode = 0777;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_SIZE)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_SIZE);
+ nvap->nva_size = 0;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_SPACE_USED)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_SPACE_USED);
+ nvap->nva_bytes = 0;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_NUMLINKS)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_NUMLINKS);
+ nvap->nva_nlink = 2;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_TIME_ACCESS)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_TIME_ACCESS);
+ nvap->nva_timesec[NFSTIME_ACCESS] = now.tv_sec;
+ nvap->nva_timensec[NFSTIME_ACCESS] = now.tv_nsec;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_TIME_MODIFY)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_TIME_MODIFY);
+ nvap->nva_timesec[NFSTIME_MODIFY] = now.tv_sec;
+ nvap->nva_timensec[NFSTIME_MODIFY] = now.tv_nsec;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_TIME_METADATA)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_TIME_METADATA);
+ nvap->nva_timesec[NFSTIME_CHANGE] = now.tv_sec;
+ nvap->nva_timensec[NFSTIME_CHANGE] = now.tv_nsec;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_FILEID)) {
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_FILEID);
+ nvap->nva_fileid = 42;
+ }
+ if (!NFS_BITMAP_ISSET(nvap->nva_bitmap, NFS_FATTR_FILEHANDLE) && dnp && name && fhp) {
+ /* Build a fake filehandle made up of parent node pointer and name */
+ NFS_BITMAP_SET(nvap->nva_bitmap, NFS_FATTR_FILEHANDLE);
+ bcopy(&dnp, &fhp->fh_data[0], sizeof(dnp));
+ len = sizeof(fhp->fh_data) - sizeof(dnp);
+ bcopy(name, &fhp->fh_data[0] + sizeof(dnp), MIN(len, namelen));
+ fhp->fh_len = sizeof(dnp) + namelen;
+ if (fhp->fh_len > (int)sizeof(fhp->fh_data)) {
+ fhp->fh_len = sizeof(fhp->fh_data);
+ }
+ }
+}
+
+/*
+ * Set NFS bitmap according to what's set in vnode_attr (and supported by the server).
+ */
+void
+nfs_vattr_set_bitmap(struct nfsmount *nmp, uint32_t *bitmap, struct vnode_attr *vap)
+{
+ int i;
+
+ NFS_CLEAR_ATTRIBUTES(bitmap);
+ if (VATTR_IS_ACTIVE(vap, va_data_size)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_SIZE);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_acl) && (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_ACL)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_ACL);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_flags)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_ARCHIVE);
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_HIDDEN);
+ }
+ // NFS_BITMAP_SET(bitmap, NFS_FATTR_MIMETYPE)
+ if (VATTR_IS_ACTIVE(vap, va_mode) && !NMFLAG(nmp, ACLONLY)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_MODE);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_uid) || VATTR_IS_ACTIVE(vap, va_uuuid)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_OWNER);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_gid) || VATTR_IS_ACTIVE(vap, va_guuid)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_OWNER_GROUP);
+ }
+ // NFS_BITMAP_SET(bitmap, NFS_FATTR_SYSTEM)
+ if (vap->va_vaflags & VA_UTIMES_NULL) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_ACCESS_SET);
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_MODIFY_SET);
+ } else {
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_ACCESS_SET);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_MODIFY_SET);
+ }
+ }
+ if (VATTR_IS_ACTIVE(vap, va_backup_time)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_BACKUP);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_create_time)) {
+ NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_CREATE);
+ }
+ /* and limit to what is supported by server */
+ for (i = 0; i < NFS_ATTR_BITMAP_LEN; i++) {
+ bitmap[i] &= nmp->nm_fsattr.nfsa_supp_attr[i];
+ }
+}
+
+/*
+ * Convert between NFSv4 and VFS ACE types
+ */
+uint32_t
+nfs4_ace_nfstype_to_vfstype(uint32_t nfsacetype, int *errorp)
+{
+ switch (nfsacetype) {
+ case NFS_ACE_ACCESS_ALLOWED_ACE_TYPE:
+ return KAUTH_ACE_PERMIT;
+ case NFS_ACE_ACCESS_DENIED_ACE_TYPE:
+ return KAUTH_ACE_DENY;
+ case NFS_ACE_SYSTEM_AUDIT_ACE_TYPE:
+ return KAUTH_ACE_AUDIT;
+ case NFS_ACE_SYSTEM_ALARM_ACE_TYPE:
+ return KAUTH_ACE_ALARM;
+ }
+ *errorp = EBADRPC;
+ return 0;
+}
+
+uint32_t
+nfs4_ace_vfstype_to_nfstype(uint32_t vfstype, int *errorp)
+{
+ switch (vfstype) {
+ case KAUTH_ACE_PERMIT:
+ return NFS_ACE_ACCESS_ALLOWED_ACE_TYPE;
+ case KAUTH_ACE_DENY:
+ return NFS_ACE_ACCESS_DENIED_ACE_TYPE;
+ case KAUTH_ACE_AUDIT:
+ return NFS_ACE_SYSTEM_AUDIT_ACE_TYPE;
+ case KAUTH_ACE_ALARM:
+ return NFS_ACE_SYSTEM_ALARM_ACE_TYPE;
+ }
+ *errorp = EINVAL;
+ return 0;
+}
+
+/*
+ * Convert between NFSv4 and VFS ACE flags
+ */
+uint32_t
+nfs4_ace_nfsflags_to_vfsflags(uint32_t nfsflags)
+{
+ uint32_t vfsflags = 0;
+
+ if (nfsflags & NFS_ACE_FILE_INHERIT_ACE) {
+ vfsflags |= KAUTH_ACE_FILE_INHERIT;
+ }
+ if (nfsflags & NFS_ACE_DIRECTORY_INHERIT_ACE) {
+ vfsflags |= KAUTH_ACE_DIRECTORY_INHERIT;
+ }
+ if (nfsflags & NFS_ACE_NO_PROPAGATE_INHERIT_ACE) {
+ vfsflags |= KAUTH_ACE_LIMIT_INHERIT;
+ }
+ if (nfsflags & NFS_ACE_INHERIT_ONLY_ACE) {
+ vfsflags |= KAUTH_ACE_ONLY_INHERIT;
+ }
+ if (nfsflags & NFS_ACE_SUCCESSFUL_ACCESS_ACE_FLAG) {
+ vfsflags |= KAUTH_ACE_SUCCESS;
+ }
+ if (nfsflags & NFS_ACE_FAILED_ACCESS_ACE_FLAG) {
+ vfsflags |= KAUTH_ACE_FAILURE;
+ }
+ if (nfsflags & NFS_ACE_INHERITED_ACE) {
+ vfsflags |= KAUTH_ACE_INHERITED;
+ }
+
+ return vfsflags;
+}
+
+uint32_t
+nfs4_ace_vfsflags_to_nfsflags(uint32_t vfsflags)
+{
+ uint32_t nfsflags = 0;
+
+ if (vfsflags & KAUTH_ACE_FILE_INHERIT) {
+ nfsflags |= NFS_ACE_FILE_INHERIT_ACE;
+ }
+ if (vfsflags & KAUTH_ACE_DIRECTORY_INHERIT) {
+ nfsflags |= NFS_ACE_DIRECTORY_INHERIT_ACE;
+ }
+ if (vfsflags & KAUTH_ACE_LIMIT_INHERIT) {
+ nfsflags |= NFS_ACE_NO_PROPAGATE_INHERIT_ACE;
+ }
+ if (vfsflags & KAUTH_ACE_ONLY_INHERIT) {
+ nfsflags |= NFS_ACE_INHERIT_ONLY_ACE;
+ }
+ if (vfsflags & KAUTH_ACE_SUCCESS) {
+ nfsflags |= NFS_ACE_SUCCESSFUL_ACCESS_ACE_FLAG;
+ }
+ if (vfsflags & KAUTH_ACE_FAILURE) {
+ nfsflags |= NFS_ACE_FAILED_ACCESS_ACE_FLAG;
+ }
+ if (vfsflags & KAUTH_ACE_INHERITED) {
+ nfsflags |= NFS_ACE_INHERITED_ACE;
+ }
+
+ return nfsflags;
+}
+
+/*
+ * Convert between NFSv4 ACE access masks and VFS access rights
+ */
+uint32_t
+nfs4_ace_nfsmask_to_vfsrights(uint32_t nfsmask)
+{
+ uint32_t vfsrights = 0;
+
+ if (nfsmask & NFS_ACE_READ_DATA) {
+ vfsrights |= KAUTH_VNODE_READ_DATA;
+ }
+ if (nfsmask & NFS_ACE_LIST_DIRECTORY) {
+ vfsrights |= KAUTH_VNODE_LIST_DIRECTORY;
+ }
+ if (nfsmask & NFS_ACE_WRITE_DATA) {
+ vfsrights |= KAUTH_VNODE_WRITE_DATA;
+ }
+ if (nfsmask & NFS_ACE_ADD_FILE) {
+ vfsrights |= KAUTH_VNODE_ADD_FILE;
+ }
+ if (nfsmask & NFS_ACE_APPEND_DATA) {
+ vfsrights |= KAUTH_VNODE_APPEND_DATA;
+ }
+ if (nfsmask & NFS_ACE_ADD_SUBDIRECTORY) {
+ vfsrights |= KAUTH_VNODE_ADD_SUBDIRECTORY;
+ }
+ if (nfsmask & NFS_ACE_READ_NAMED_ATTRS) {
+ vfsrights |= KAUTH_VNODE_READ_EXTATTRIBUTES;
+ }
+ if (nfsmask & NFS_ACE_WRITE_NAMED_ATTRS) {
+ vfsrights |= KAUTH_VNODE_WRITE_EXTATTRIBUTES;
+ }
+ if (nfsmask & NFS_ACE_EXECUTE) {
+ vfsrights |= KAUTH_VNODE_EXECUTE;
+ }
+ if (nfsmask & NFS_ACE_DELETE_CHILD) {
+ vfsrights |= KAUTH_VNODE_DELETE_CHILD;
+ }
+ if (nfsmask & NFS_ACE_READ_ATTRIBUTES) {
+ vfsrights |= KAUTH_VNODE_READ_ATTRIBUTES;
+ }
+ if (nfsmask & NFS_ACE_WRITE_ATTRIBUTES) {
+ vfsrights |= KAUTH_VNODE_WRITE_ATTRIBUTES;
+ }
+ if (nfsmask & NFS_ACE_DELETE) {
+ vfsrights |= KAUTH_VNODE_DELETE;
+ }
+ if (nfsmask & NFS_ACE_READ_ACL) {
+ vfsrights |= KAUTH_VNODE_READ_SECURITY;
+ }
+ if (nfsmask & NFS_ACE_WRITE_ACL) {
+ vfsrights |= KAUTH_VNODE_WRITE_SECURITY;
+ }
+ if (nfsmask & NFS_ACE_WRITE_OWNER) {
+ vfsrights |= KAUTH_VNODE_CHANGE_OWNER;
+ }
+ if (nfsmask & NFS_ACE_SYNCHRONIZE) {
+ vfsrights |= KAUTH_VNODE_SYNCHRONIZE;
+ }
+ if ((nfsmask & NFS_ACE_GENERIC_READ) == NFS_ACE_GENERIC_READ) {
+ vfsrights |= KAUTH_ACE_GENERIC_READ;
+ }
+ if ((nfsmask & NFS_ACE_GENERIC_WRITE) == NFS_ACE_GENERIC_WRITE) {
+ vfsrights |= KAUTH_ACE_GENERIC_WRITE;
+ }
+ if ((nfsmask & NFS_ACE_GENERIC_EXECUTE) == NFS_ACE_GENERIC_EXECUTE) {
+ vfsrights |= KAUTH_ACE_GENERIC_EXECUTE;
+ }
+
+ return vfsrights;
+}
+
+uint32_t
+nfs4_ace_vfsrights_to_nfsmask(uint32_t vfsrights)
+{
+ uint32_t nfsmask = 0;
+
+ if (vfsrights & KAUTH_VNODE_READ_DATA) {
+ nfsmask |= NFS_ACE_READ_DATA;
+ }
+ if (vfsrights & KAUTH_VNODE_LIST_DIRECTORY) {
+ nfsmask |= NFS_ACE_LIST_DIRECTORY;
+ }
+ if (vfsrights & KAUTH_VNODE_WRITE_DATA) {
+ nfsmask |= NFS_ACE_WRITE_DATA;
+ }
+ if (vfsrights & KAUTH_VNODE_ADD_FILE) {
+ nfsmask |= NFS_ACE_ADD_FILE;
+ }
+ if (vfsrights & KAUTH_VNODE_APPEND_DATA) {
+ nfsmask |= NFS_ACE_APPEND_DATA;
+ }
+ if (vfsrights & KAUTH_VNODE_ADD_SUBDIRECTORY) {
+ nfsmask |= NFS_ACE_ADD_SUBDIRECTORY;
+ }
+ if (vfsrights & KAUTH_VNODE_READ_EXTATTRIBUTES) {
+ nfsmask |= NFS_ACE_READ_NAMED_ATTRS;
+ }
+ if (vfsrights & KAUTH_VNODE_WRITE_EXTATTRIBUTES) {
+ nfsmask |= NFS_ACE_WRITE_NAMED_ATTRS;
+ }
+ if (vfsrights & KAUTH_VNODE_EXECUTE) {
+ nfsmask |= NFS_ACE_EXECUTE;
+ }
+ if (vfsrights & KAUTH_VNODE_DELETE_CHILD) {
+ nfsmask |= NFS_ACE_DELETE_CHILD;
+ }
+ if (vfsrights & KAUTH_VNODE_READ_ATTRIBUTES) {
+ nfsmask |= NFS_ACE_READ_ATTRIBUTES;
+ }
+ if (vfsrights & KAUTH_VNODE_WRITE_ATTRIBUTES) {
+ nfsmask |= NFS_ACE_WRITE_ATTRIBUTES;
+ }
+ if (vfsrights & KAUTH_VNODE_DELETE) {
+ nfsmask |= NFS_ACE_DELETE;
+ }
+ if (vfsrights & KAUTH_VNODE_READ_SECURITY) {
+ nfsmask |= NFS_ACE_READ_ACL;
+ }
+ if (vfsrights & KAUTH_VNODE_WRITE_SECURITY) {
+ nfsmask |= NFS_ACE_WRITE_ACL;
+ }
+ if (vfsrights & KAUTH_VNODE_CHANGE_OWNER) {
+ nfsmask |= NFS_ACE_WRITE_OWNER;
+ }
+ if (vfsrights & KAUTH_VNODE_SYNCHRONIZE) {
+ nfsmask |= NFS_ACE_SYNCHRONIZE;
+ }
+ if (vfsrights & KAUTH_ACE_GENERIC_READ) {
+ nfsmask |= NFS_ACE_GENERIC_READ;
+ }
+ if (vfsrights & KAUTH_ACE_GENERIC_WRITE) {
+ nfsmask |= NFS_ACE_GENERIC_WRITE;
+ }
+ if (vfsrights & KAUTH_ACE_GENERIC_EXECUTE) {
+ nfsmask |= NFS_ACE_GENERIC_EXECUTE;
+ }
+ if (vfsrights & KAUTH_ACE_GENERIC_ALL) {
+ nfsmask |= (KAUTH_ACE_GENERIC_READ | KAUTH_ACE_GENERIC_WRITE | NFS_ACE_GENERIC_EXECUTE);
+ }
+
+ return nfsmask;
+}
+
+/*
+ * nfs4_wkid2sidd::
+ * mapid a wellknown identity to guid.
+ * Return 0 on success ENOENT if id does not map and EINVAL if the id is not a well known name.
+ */
+static int
+nfs4_wkid2sid(const char *id, ntsid_t *sp)
+{
+ size_t len = strnlen(id, MAXIDNAMELEN);
+
+ if (len == MAXIDNAMELEN || id[len - 1] != '@') {
+ return EINVAL;
+ }
+
+ bzero(sp, sizeof(ntsid_t));
+ sp->sid_kind = 1;
+ sp->sid_authcount = 1;
+ if (!strcmp(id, "OWNER@")) {
+ // S-1-3-0
+ sp->sid_authority[5] = 3;
+ sp->sid_authorities[0] = 0;
+ } else if (!strcmp(id, "GROUP@")) {
+ // S-1-3-1
+ sp->sid_authority[5] = 3;
+ sp->sid_authorities[0] = 1;
+ } else if (!strcmp(id, "EVERYONE@")) {
+ // S-1-1-0
+ sp->sid_authority[5] = 1;
+ sp->sid_authorities[0] = 0;
+ } else if (!strcmp(id, "INTERACTIVE@")) {
+ // S-1-5-4
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 4;
+ } else if (!strcmp(id, "NETWORK@")) {
+ // S-1-5-2
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 2;
+ } else if (!strcmp(id, "DIALUP@")) {
+ // S-1-5-1
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 1;
+ } else if (!strcmp(id, "BATCH@")) {
+ // S-1-5-3
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 3;
+ } else if (!strcmp(id, "ANONYMOUS@")) {
+ // S-1-5-7
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 7;
+ } else if (!strcmp(id, "AUTHENTICATED@")) {
+ // S-1-5-11
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 11;
+ } else if (!strcmp(id, "SERVICE@")) {
+ // S-1-5-6
+ sp->sid_authority[5] = 5;
+ sp->sid_authorities[0] = 6;
+ } else {
+ // S-1-0-0 "NOBODY"
+ sp->sid_authority[5] = 0;
+ sp->sid_authorities[0] = 0;
+ }
+ return 0;
+}
+
+static int
+nfs4_fallback_name(const char *id, int have_at)
+{
+ if (have_at) {
+ /* must be user@domain */
+ /* try to identify some well-known IDs */
+ if (!strncmp(id, "root@", 5)) {
+ return 0;
+ } else if (!strncmp(id, "wheel@", 6)) {
+ return 0;
+ } else if (!strncmp(id, "nobody@", 7)) {
+ return -2;
+ } else if (!strncmp(id, "nfsnobody@", 10)) {
+ return -2;
+ }
+ }
+ return -2;
+}
+
+static void
+nfs4_mapid_log(int error, const char *idstr, int isgroup, guid_t *gp)
+{
+ if (error && (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_FAILED_MAPPINGS)) {
+ printf("nfs4_id2guid: idmap failed for %s %s error %d\n", idstr, isgroup ? "G" : " ", error);
+ }
+ if (!error && (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_SUCCESSFUL_MAPPINGS)) {
+ printf("nfs4_id2guid: idmap for %s %s got guid "
+ "%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x\n",
+ idstr, isgroup ? "G" : " ",
+ gp->g_guid[0], gp->g_guid[1], gp->g_guid[2], gp->g_guid[3],
+ gp->g_guid[4], gp->g_guid[5], gp->g_guid[6], gp->g_guid[7],
+ gp->g_guid[8], gp->g_guid[9], gp->g_guid[10], gp->g_guid[11],
+ gp->g_guid[12], gp->g_guid[13], gp->g_guid[14], gp->g_guid[15]);
+ }
+}
+
+static char *
+nfs4_map_domain(char *id, char **atp)
+{
+ char *at = *atp;
+ char *dsnode, *otw_nfs4domain;
+ char *new_id = NULL;
+ size_t otw_domain_len;
+ size_t otw_id_2_at_len;
+ int error;
+
+ if (at == NULL) {
+ at = strchr(id, '@');
+ }
+ if (at == NULL || *at != '@') {
+ return NULL;
+ }
+
+ otw_nfs4domain = at + 1;
+ otw_domain_len = strnlen(otw_nfs4domain, MAXPATHLEN);
+ otw_id_2_at_len = at - id + 1;
+
+ MALLOC_ZONE(dsnode, char*, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ /* first try to map nfs4 domain to dsnode for scoped lookups */
+ error = kauth_cred_nfs4domain2dsnode(otw_nfs4domain, dsnode);
+ if (!error) {
+ /* Success! Make new id be id@dsnode */
+ size_t dsnode_len = strnlen(dsnode, MAXPATHLEN);
+ size_t new_id_len = otw_id_2_at_len + dsnode_len + 1;
+ char tmp;
+
+ MALLOC(new_id, char*, new_id_len, M_TEMP, M_WAITOK);
+ tmp = *otw_nfs4domain;
+ *otw_nfs4domain = '\0'; /* Chop of the old domain */
+ strlcpy(new_id, id, MAXPATHLEN);
+ *otw_nfs4domain = tmp; /* Be nice and preserve callers original id */
+ strlcat(new_id, dsnode, MAXPATHLEN);
+ at = strchr(new_id, '@');
+ } else {
+ /* Bummer:-( See if default nfs4 set for unscoped lookup */
+ size_t default_domain_len = strnlen(nfs4_default_domain, MAXPATHLEN);
+
+ if ((otw_domain_len == default_domain_len) &&
+ (strncmp(otw_nfs4domain, nfs4_default_domain, otw_domain_len) == 0)) {
+ /* Woohoo! We have matching domains, do unscoped lookups */
+ *at = '\0';
+ }
+ }
+ FREE_ZONE(dsnode, MAXPATHLEN, M_NAMEI);
+
+ if (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_SUCCESSFUL_MAPPINGS) {
+ printf("nfs4_id2guid: after domain mapping id is %s\n", id);
+ }
+
+ *atp = at;
+ return new_id;
+}
+
+/*
+ * Map an NFSv4 ID string to a VFS guid.
+ *
+ * Try to use the ID mapping service... but we may fallback to trying to do it ourselves.
+ */
+int
+nfs4_id2guid(/*const*/ char *id, guid_t *guidp, int isgroup)
+{
+ int error = 0;
+ ntsid_t sid;
+ long num;
+ char *p, *at, *new_id = NULL;
+
+ *guidp = kauth_null_guid;
+
+ /*
+ * First check if it is just a simple numeric ID string or a special "XXX@" name.
+ * If it's a number, there's no need trying to ask the IDMAP service to map it.
+ * If it's a special "XXX@" name, we want to make sure to treat it as a group.
+ */
+ num = 1;
+ at = NULL;
+ p = id;
+ while (*p) {
+ if ((*p < '0') || (*p > '9')) {
+ num = 0;
+ }
+ if (*p == '@') {
+ at = p;
+ }
+ p++;
+ }
+
+ if (num) {
+ /* must be numeric ID (or empty) */
+ num = *id ? strtol(id, NULL, 10) : -2;
+ if (isgroup) {
+ error = kauth_cred_gid2guid((gid_t)num, guidp);
+ } else {
+ error = kauth_cred_uid2guid((uid_t)num, guidp);
+ }
+ nfs4_mapid_log(error, id, isgroup, guidp);
+ return error;
+ }
+
+ /* See if this is a well known NFSv4 name */
+ error = nfs4_wkid2sid(id, &sid);
+ if (!error) {
+ error = kauth_cred_ntsid2guid(&sid, guidp);
+ nfs4_mapid_log(error, id, 1, guidp);
+ return error;
+ }
+
+ /* Handle nfs4 domain first */
+ if (at && at[1]) {
+ new_id = nfs4_map_domain(id, &at);
+ if (new_id) {
+ id = new_id;
+ }
+ }
+
+ /* Now try to do actual id mapping */
+ if (nfs_idmap_ctrl & NFS_IDMAP_CTRL_USE_IDMAP_SERVICE) {
+ /*
+ * Ask the ID mapping service to map the ID string to a GUID.
+ *
+ * [sigh] this isn't a "pwnam/grnam" it's an NFS ID string!
+ */
+ if (isgroup) {
+ error = kauth_cred_grnam2guid(id, guidp);
+ } else {
+ error = kauth_cred_pwnam2guid(id, guidp);
+ }
+ nfs4_mapid_log(error, id, isgroup, guidp);
+ } else {
+ error = ENOTSUP;
+ }
+
+ if (error) {
+ /*
+ * fallback path... see if we can come up with an answer ourselves.
+ */
+ num = nfs4_fallback_name(id, at != NULL);
+ if (isgroup) {
+ error = kauth_cred_gid2guid((gid_t)num, guidp);
+ } else {
+ error = kauth_cred_uid2guid((uid_t)num, guidp);
+ }
+ nfs4_mapid_log(error, id, isgroup, guidp);
+ }
+
+
+ /* restore @ symbol in case we clobered for unscoped lookup */
+ if (at && *at == '\0') {
+ *at = '@';
+ }
+
+ /* free mapped domain id string */
+ if (new_id) {
+ FREE(new_id, M_TEMP);
+ }
+
+ return error;
+}
+
+/*
+ * nfs4_sid2wkid:
+ * mapid a wellknown identity to guid.
+ * returns well known name for the sid or NULL if sid does not map.
+ */
+#define MAXWELLKNOWNID 18
+
+static const char*
+nfs4_sid2wkid(ntsid_t *sp)
+{
+ if ((sp->sid_kind == 1) && (sp->sid_authcount == 1)) {
+ /* check if it's one of our well-known ACE WHO names */
+ if (sp->sid_authority[5] == 0) {
+ if (sp->sid_authorities[0] == 0) { // S-1-0-0
+ return "nobody@localdomain";
+ }
+ } else if (sp->sid_authority[5] == 1) {
+ if (sp->sid_authorities[0] == 0) { // S-1-1-0
+ return "EVERYONE@";
+ }
+ } else if (sp->sid_authority[5] == 3) {
+ if (sp->sid_authorities[0] == 0) { // S-1-3-0
+ return "OWNER@";
+ } else if (sp->sid_authorities[0] == 1) { // S-1-3-1
+ return "GROUP@";
+ }
+ } else if (sp->sid_authority[5] == 5) {
+ if (sp->sid_authorities[0] == 1) { // S-1-5-1
+ return "DIALUP@";
+ } else if (sp->sid_authorities[0] == 2) { // S-1-5-2
+ return "NETWORK@";
+ } else if (sp->sid_authorities[0] == 3) { // S-1-5-3
+ return "BATCH@";
+ } else if (sp->sid_authorities[0] == 4) { // S-1-5-4
+ return "INTERACTIVE@";
+ } else if (sp->sid_authorities[0] == 6) { // S-1-5-6
+ return "SERVICE@";
+ } else if (sp->sid_authorities[0] == 7) { // S-1-5-7
+ return "ANONYMOUS@";
+ } else if (sp->sid_authorities[0] == 11) { // S-1-5-11
+ return "AUTHENTICATED@";
+ }
+ }
+ }
+ return NULL;
+}
+
+static void
+nfs4_mapguid_log(int error, const char *where, guid_t *gp, int isgroup, const char *idstr)
+{
+ if (error && (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_FAILED_MAPPINGS)) {
+ printf("nfs4_guid2id: %s idmap failed for "
+ "%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x %s "
+ "error %d\n", where,
+ gp->g_guid[0], gp->g_guid[1], gp->g_guid[2], gp->g_guid[3],
+ gp->g_guid[4], gp->g_guid[5], gp->g_guid[6], gp->g_guid[7],
+ gp->g_guid[8], gp->g_guid[9], gp->g_guid[10], gp->g_guid[11],
+ gp->g_guid[12], gp->g_guid[13], gp->g_guid[14], gp->g_guid[15],
+ isgroup ? "G" : " ", error);
+ }
+ if (!error && (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_SUCCESSFUL_MAPPINGS)) {
+ printf("nfs4_guid2id: %s idmap for "
+ "%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x_%02x%02x%02x%02x %s "
+ "got ID %s\n", where,
+ gp->g_guid[0], gp->g_guid[1], gp->g_guid[2], gp->g_guid[3],
+ gp->g_guid[4], gp->g_guid[5], gp->g_guid[6], gp->g_guid[7],
+ gp->g_guid[8], gp->g_guid[9], gp->g_guid[10], gp->g_guid[11],
+ gp->g_guid[12], gp->g_guid[13], gp->g_guid[14], gp->g_guid[15],
+ isgroup ? "G" : " ", idstr);
+ }
+}
+
+static int
+nfs4_addv4domain(char *id, size_t *idlen)
+{
+ char *at = NULL, *cp;
+ int have_domain;
+ int error = 0;
+ size_t idsize;
+
+
+ if (id == NULL || *id == '\0') {
+ return EINVAL;
+ }
+
+ for (cp = id; *cp != '\0'; cp++) {
+ if (*cp == '@') {
+ at = cp;
+ break;
+ }
+ }
+
+ have_domain = (at && at[1] != '\0');
+
+ if (have_domain) {
+ char *dsnode = at + 1;
+ char *nfs4domain;
+ size_t domain_len;
+ char *mapped_domain;
+
+ MALLOC_ZONE(nfs4domain, char*, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ error = kauth_cred_dsnode2nfs4domain(dsnode, nfs4domain);
+ if (!error) {
+ domain_len = strnlen(nfs4domain, MAXPATHLEN);
+ mapped_domain = nfs4domain;
+ } else {
+ error = 0;
+ domain_len = strnlen(nfs4_default_domain, MAXPATHLEN);
+ mapped_domain = nfs4_default_domain;
+ }
+ if (domain_len) {
+ /* chop off id after the '@' */
+ at[1] = '\0';
+ /* Add our mapped_domain */
+ idsize = strlcat(id, mapped_domain, *idlen);
+ if (*idlen > idsize) {
+ *idlen = idsize;
+ } else {
+ error = ENOSPC;
+ }
+ }
+ FREE_ZONE(nfs4domain, MAXPATHLEN, M_NAMEI);
+ } else if (at == NULL) {
+ /*
+ * If we didn't find an 'at' then cp points to the end of id passed in.
+ * and if we have a nfs4_default_domain set. Try to append the
+ * default domain if we have root or set ENOSPC.
+ */
+ size_t default_domain_len = strnlen(nfs4_default_domain, MAXPATHLEN);
+
+ if (default_domain_len) {
+ strlcat(id, "@", *idlen);
+ idsize = strlcat(id, nfs4_default_domain, *idlen);
+ if (*idlen > idsize) {
+ *idlen = idsize;
+ } else {
+ error = ENOSPC;
+ }
+ } else {
+ ; /* Unscoped name otw */
+ }
+ }
+
+ if (!error && nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_SUCCESSFUL_MAPPINGS) {
+ printf("nfs4_guid2id: id after nfs4 domain map: %s[%zd].\n", id, *idlen);
+ }
+
+ return error;
+}
+
+static char *
+nfs4_fallback_id(int numid, int isgrp, char *buf, size_t size)
+{
+ const char *idp = NULL;
+
+ if (!(nfs_idmap_ctrl & NFS_IDMAP_CTRL_FALLBACK_NO_COMMON_IDS)) {
+ /* map well known uid's to strings */
+ if (numid == 0) {
+ idp = isgrp ? "wheel" : "root";
+ } else if (numid == -2) {
+ idp = "nobody";
+ }
+ }
+ if (!idp) {
+ /* or just use a decimal number string. */
+ snprintf(buf, size - 1, "%d", numid);
+ buf[size - 1] = '\0';
+ } else {
+ size_t idplen = strlcpy(buf, idp, size);
+ if (idplen >= size) {
+ return NULL;
+ }
+ }
+
+ return buf;
+}
+
+/*
+ * Map a VFS guid to an NFSv4 ID string.
+ *
+ * Try to use the ID mapping service... but we may fallback to trying to do it ourselves.
+ */
+int
+nfs4_guid2id(guid_t *guidp, char *id, size_t *idlen, int isgroup)
+{
+ int error = 0;
+ size_t id1len, len;
+ char *id1buf, *id1;
+ char numbuf[32];
+ ntsid_t sid;
+
+ id1buf = id1 = NULL;
+ id1len = 0;
+
+ /*
+ * See if our guid maps to a well known NFSv4 name
+ */
+ error = kauth_cred_guid2ntsid(guidp, &sid);
+ if (!error) {
+ const char *wkid = nfs4_sid2wkid(&sid);
+ if (wkid) {
+ len = strnlen(wkid, MAXWELLKNOWNID);
+ strlcpy(id, wkid, *idlen);
+ error = (len < *idlen) ? 0 : ENOSPC;
+ *idlen = len;
+ nfs4_mapguid_log(error, "kauth_cred_guid2ntsid", guidp, 1, id);
+ return error;
+ }
+ } else {
+ nfs4_mapguid_log(error, "kauth_cred_guid2ntsid", guidp, isgroup, NULL);
+ }
+
+ if (nfs_idmap_ctrl & NFS_IDMAP_CTRL_USE_IDMAP_SERVICE) {
+ /*
+ * Ask the ID mapping service to map the GUID to an ID string.
+ *
+ * [sigh] this isn't a "pwnam" it's an NFS id string!
+ */
+
+ /*
+ * Stupid kauth_cred_guid2pwnam() function requires that the buffer
+ * be at least MAXPATHLEN bytes long even though most if not all ID
+ * strings will be much much shorter than that.
+ */
+
+ if (*idlen < MAXPATHLEN) {
+ MALLOC_ZONE(id1buf, char*, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ id1 = id1buf;
+ id1len = MAXPATHLEN;
+ } else {
+ id1 = id;
+ id1len = *idlen;
+ }
+
+ if (isgroup) {
+ error = kauth_cred_guid2grnam(guidp, id1);
+ } else {
+ error = kauth_cred_guid2pwnam(guidp, id1);
+ }
+ if (error) {
+ nfs4_mapguid_log(error, "kauth_cred2[pw|gr]nam", guidp, isgroup, id1);
+ }
+ } else {
+ error = ENOTSUP;
+ }
+
+ if (error) {
+ /*
+ * fallback path... see if we can come up with an answer ourselves.
+ */
+ uid_t uid;
+
+ /* OK, let's just try mapping it to a UID/GID */
+ if (isgroup) {
+ error = kauth_cred_guid2gid(guidp, (gid_t*)&uid);
+ } else {
+ error = kauth_cred_guid2uid(guidp, &uid);
+ }
+ if (!error) {
+ char *fbidp = nfs4_fallback_id(uid, isgroup, numbuf, sizeof(numbuf));
+ if (fbidp == NULL) {
+ error = ENOSPC;
+ } else {
+ id1 = fbidp;
+ }
+ }
+ } else {
+ error = nfs4_addv4domain(id1, &id1len);
+ }
+
+ if (!error) {
+ if (id1 != id) {
+ /* copy idmap result to output buffer */
+ len = strlcpy(id, id1, *idlen);
+ if (len >= *idlen) {
+ error = ENOSPC;
+ } else {
+ *idlen = len;
+ }
+ }
+ }
+ nfs4_mapguid_log(error, "End of routine", guidp, isgroup, id1);
+
+ if (id1buf) {
+ FREE_ZONE(id1buf, MAXPATHLEN, M_NAMEI);
+ }
- interval = nmp->nm_fsattr.nfsa_lease / (error ? 4 : 2);
- if (interval < 1)
- interval = 1;
- nfs_interval_timer_start(nmp->nm_renew_timer, interval * 1000);
+ return error;
}
/*
void
nfs_vattr_set_supported(uint32_t *bitmap, struct vnode_attr *vap)
{
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TYPE))
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TYPE)) {
VATTR_SET_SUPPORTED(vap, va_type);
+ }
// if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CHANGE))
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SIZE))
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SIZE)) {
VATTR_SET_SUPPORTED(vap, va_data_size);
- // if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NAMED_ATTR))
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FSID))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FSID)) {
VATTR_SET_SUPPORTED(vap, va_fsid);
-// if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL))
-// VATTR_SET_SUPPORTED(vap, va_acl);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ARCHIVE))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL)) {
+ VATTR_SET_SUPPORTED(vap, va_acl);
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ARCHIVE)) {
VATTR_SET_SUPPORTED(vap, va_flags);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FILEID))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FILEID)) {
VATTR_SET_SUPPORTED(vap, va_fileid);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_HIDDEN))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_HIDDEN)) {
VATTR_SET_SUPPORTED(vap, va_flags);
+ }
// if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MIMETYPE))
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MODE))
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MODE)) {
VATTR_SET_SUPPORTED(vap, va_mode);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NUMLINKS))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NUMLINKS)) {
VATTR_SET_SUPPORTED(vap, va_nlink);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER)) {
VATTR_SET_SUPPORTED(vap, va_uid);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER_GROUP))
+ VATTR_SET_SUPPORTED(vap, va_uuuid);
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER_GROUP)) {
VATTR_SET_SUPPORTED(vap, va_gid);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_RAWDEV))
+ VATTR_SET_SUPPORTED(vap, va_guuid);
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_RAWDEV)) {
VATTR_SET_SUPPORTED(vap, va_rdev);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SPACE_USED))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SPACE_USED)) {
VATTR_SET_SUPPORTED(vap, va_total_alloc);
+ }
// if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SYSTEM))
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_ACCESS))
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_ACCESS)) {
VATTR_SET_SUPPORTED(vap, va_access_time);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_BACKUP))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_BACKUP)) {
VATTR_SET_SUPPORTED(vap, va_backup_time);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_CREATE))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_CREATE)) {
VATTR_SET_SUPPORTED(vap, va_create_time);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_METADATA))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_METADATA)) {
VATTR_SET_SUPPORTED(vap, va_change_time);
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_MODIFY))
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_MODIFY)) {
VATTR_SET_SUPPORTED(vap, va_modify_time);
+ }
}
/*
struct nfs_fsattr *nfsap,
struct nfs_vattr *nvap,
fhandle_t *fhp,
- struct dqblk *dqbp)
+ struct dqblk *dqbp,
+ struct nfs_fs_locations *nfslsp)
{
- int error = 0, attrbytes;
- uint32_t val, val2, val3, i, j;
+ int error = 0, error2, rderror = 0, attrbytes;
+ uint32_t val, val2, val3, i;
uint32_t bitmap[NFS_ATTR_BITMAP_LEN], len;
- char *s;
+ size_t slen;
+ char sbuf[64], *s;
struct nfs_fsattr nfsa_dummy;
struct nfs_vattr nva_dummy;
struct dqblk dqb_dummy;
+ kauth_acl_t acl = NULL;
+ uint32_t ace_type, ace_flags, ace_mask;
+ struct nfs_fs_locations nfsls_dummy;
+ struct sockaddr_storage ss;
/* if not interested in some values... throw 'em into a local dummy variable */
- if (!nfsap)
+ if (!nfsap) {
nfsap = &nfsa_dummy;
- if (!nvap)
+ }
+ if (!nvap) {
nvap = &nva_dummy;
- if (!dqbp)
+ }
+ if (!dqbp) {
dqbp = &dqb_dummy;
+ }
+ if (!nfslsp) {
+ nfslsp = &nfsls_dummy;
+ }
+ bzero(nfslsp, sizeof(*nfslsp));
attrbytes = val = val2 = val3 = 0;
+ s = sbuf;
+ slen = sizeof(sbuf);
+ NVATTR_INIT(nvap);
len = NFS_ATTR_BITMAP_LEN;
nfsm_chain_get_bitmap(error, nmc, bitmap, len);
/* add bits to object/fs attr bitmaps */
- for (i=0; i < NFS_ATTR_BITMAP_LEN; i++) {
+ for (i = 0; i < NFS_ATTR_BITMAP_LEN; i++) {
nvap->nva_bitmap[i] |= bitmap[i] & nfs_object_attr_bitmap[i];
nfsap->nfsa_bitmap[i] |= bitmap[i] & nfs_fs_attr_bitmap[i];
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TYPE)) {
nfsm_chain_get_32(error, nmc, val);
nvap->nva_type = nfstov_type(val, NFS_VER4);
+ if ((val == NFATTRDIR) || (val == NFNAMEDATTR)) {
+ nvap->nva_flags |= NFS_FFLAG_IS_ATTR;
+ } else {
+ nvap->nva_flags &= ~NFS_FFLAG_IS_ATTR;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FH_EXPIRE_TYPE)) {
nfsm_chain_get_32(error, nmc, val);
nfsmout_if(error);
- if (val != NFS_FH_PERSISTENT)
- printf("nfs: warning: non-persistent file handles!\n");
- if (val & ~0xff)
- printf("nfs: warning unknown fh type: 0x%x\n", val);
nfsap->nfsa_flags &= ~NFS_FSFLAG_FHTYPE_MASK;
- nfsap->nfsa_flags |= val << 24;
+ nfsap->nfsa_flags |= val << NFS_FSFLAG_FHTYPE_SHIFT;
+ if (val & ~0xff) {
+ printf("nfs: warning unknown fh type: 0x%x\n", val);
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CHANGE)) {
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_LINK_SUPPORT)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_LINK;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_LINK;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SYMLINK_SUPPORT)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_SYMLINK;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_SYMLINK;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NAMED_ATTR)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
- nvap->nva_flags |= NFS_FFLAG_NAMED_ATTR;
- else
- nvap->nva_flags &= ~NFS_FFLAG_NAMED_ATTR;
+ if (val) {
+ nvap->nva_flags |= NFS_FFLAG_HAS_NAMED_ATTRS;
+ } else {
+ nvap->nva_flags &= ~NFS_FFLAG_HAS_NAMED_ATTRS;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FSID)) {
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_UNIQUE_HANDLES)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_UNIQUE_FH;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_UNIQUE_FH;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_LEASE_TIME)) {
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_RDATTR_ERROR)) {
- nfsm_chain_get_32(error, nmc, error);
+ nfsm_chain_get_32(error, nmc, rderror);
attrbytes -= NFSX_UNSIGNED;
- nfsmout_if(error);
+ if (!rderror) { /* no error */
+ NFS_BITMAP_CLR(bitmap, NFS_FATTR_RDATTR_ERROR);
+ NFS_BITMAP_CLR(nvap->nva_bitmap, NFS_FATTR_RDATTR_ERROR);
+ }
}
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL)) { /* skip for now */
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL)) {
+ error2 = 0;
+ ace_type = ace_flags = ace_mask = 0;
nfsm_chain_get_32(error, nmc, val); /* ACE count */
- for (i=0; !error && (i < val); i++) {
- nfsm_chain_adv(error, nmc, 3 * NFSX_UNSIGNED);
- nfsm_chain_get_32(error, nmc, val2); /* string length */
- nfsm_chain_adv(error, nmc, nfsm_rndup(val2));
- attrbytes -= 4*NFSX_UNSIGNED + nfsm_rndup(val2);
+ if (!error && (val > KAUTH_ACL_MAX_ENTRIES)) {
+ error = EOVERFLOW;
+ }
+ if (!error && !((acl = kauth_acl_alloc(val)))) {
+ error = ENOMEM;
+ }
+ if (!error && acl) {
+ acl->acl_entrycount = val;
+ acl->acl_flags = 0;
+ }
+ attrbytes -= NFSX_UNSIGNED;
+ nfsm_assert(error, (attrbytes >= 0), EBADRPC);
+ for (i = 0; !error && (i < val); i++) {
+ nfsm_chain_get_32(error, nmc, ace_type);
+ nfsm_chain_get_32(error, nmc, ace_flags);
+ nfsm_chain_get_32(error, nmc, ace_mask);
+ nfsm_chain_get_32(error, nmc, len);
+ if (!error && len >= NFS_MAX_WHO) {
+ error = EBADRPC;
+ }
+ acl->acl_ace[i].ace_flags = nfs4_ace_nfstype_to_vfstype(ace_type, &error);
+ acl->acl_ace[i].ace_flags |= nfs4_ace_nfsflags_to_vfsflags(ace_flags);
+ acl->acl_ace[i].ace_rights = nfs4_ace_nfsmask_to_vfsrights(ace_mask);
+ if (!error && !error2 && (len >= slen)) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ slen = sizeof(sbuf);
+ }
+ /* Let's add a bit more if we can to the allocation as to try and avoid future allocations */
+ MALLOC(s, char*, (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO;
+ } else {
+ error = ENOMEM;
+ }
+ }
+ if (error2) {
+ nfsm_chain_adv(error, nmc, nfsm_rndup(len));
+ } else {
+ nfsm_chain_get_opaque(error, nmc, len, s);
+ }
+ if (!error && !error2) {
+ s[len] = '\0';
+ error2 = nfs4_id2guid(s, &acl->acl_ace[i].ace_applicable,
+ (ace_flags & NFS_ACE_IDENTIFIER_GROUP));
+ if (error2 && (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_FAILED_MAPPINGS)) {
+ printf("nfs4_parsefattr: ACE WHO %s is no one, no guid?, error %d\n", s, error2);
+ }
+ }
+ attrbytes -= 4 * NFSX_UNSIGNED + nfsm_rndup(len);
nfsm_assert(error, (attrbytes >= 0), EBADRPC);
}
+ nfsmout_if(error);
+ if ((nvap != &nva_dummy) && !error2) {
+ nvap->nva_acl = acl;
+ acl = NULL;
+ }
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACLSUPPORT)) {
+ /*
+ * Support ACLs if: the server supports DENY/ALLOC ACEs and
+ * (just to be safe) FATTR_ACL is in the supported list too.
+ */
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if ((val & (NFS_ACL_SUPPORT_ALLOW_ACL | NFS_ACL_SUPPORT_DENY_ACL)) &&
+ NFS_BITMAP_ISSET(nfsap->nfsa_supp_attr, NFS_FATTR_ACL)) {
nfsap->nfsa_flags |= NFS_FSFLAG_ACL;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_ACL;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ARCHIVE)) { /* SF_ARCHIVED */
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nvap->nva_flags |= NFS_FFLAG_ARCHIVED;
- else
+ } else {
nvap->nva_flags &= ~NFS_FFLAG_ARCHIVED;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CANSETTIME)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_SET_TIME;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_SET_TIME;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CASE_INSENSITIVE)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_CASE_INSENSITIVE;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_CASE_INSENSITIVE;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CASE_PRESERVING)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_CASE_PRESERVING;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_CASE_PRESERVING;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_CHOWN_RESTRICTED)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_CHOWN_RESTRICTED;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_CHOWN_RESTRICTED;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FILEHANDLE)) {
nfsm_chain_get_32(error, nmc, val);
+ if (error == 0 && val > NFS_MAX_FH_SIZE) {
+ error = EBADRPC;
+ }
+ nfsmout_if(error);
if (fhp) {
fhp->fh_len = val;
nfsm_chain_get_opaque(error, nmc, nfsm_rndup(val), fhp->fh_data);
nfsm_chain_get_64(error, nmc, nfsap->nfsa_files_total);
attrbytes -= 2 * NFSX_UNSIGNED;
}
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FS_LOCATIONS)) { /* skip for now */
- nfsm_chain_get_32(error, nmc, val); /* root path length */
- nfsm_chain_adv(error, nmc, nfsm_rndup(val)); /* root path */
- attrbytes -= (2 * NFSX_UNSIGNED) + nfsm_rndup(val);
- nfsm_chain_get_32(error, nmc, val); /* location count */
- for (i=0; !error && (i < val); i++) {
- nfsm_chain_get_32(error, nmc, val2); /* server string length */
- nfsm_chain_adv(error, nmc, nfsm_rndup(val2)); /* server string */
- attrbytes -= (2 * NFSX_UNSIGNED) + nfsm_rndup(val2);
- nfsm_chain_get_32(error, nmc, val2); /* pathname component count */
- for (j=0; !error && (j < val2); j++) {
- nfsm_chain_get_32(error, nmc, val3); /* component length */
- nfsm_chain_adv(error, nmc, nfsm_rndup(val3)); /* component */
- attrbytes -= NFSX_UNSIGNED + nfsm_rndup(val3);
- nfsm_assert(error, (attrbytes >= 0), EBADRPC);
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_FS_LOCATIONS)) {
+ uint32_t loc, serv, comp;
+ struct nfs_fs_location *fsl;
+ struct nfs_fs_server *fss;
+ struct nfs_fs_path *fsp;
+
+ /* get root pathname */
+ fsp = &nfslsp->nl_root;
+ nfsm_chain_get_32(error, nmc, fsp->np_compcount); /* component count */
+ attrbytes -= NFSX_UNSIGNED;
+ /* sanity check component count */
+ if (!error && (fsp->np_compcount > MAXPATHLEN)) {
+ error = EBADRPC;
+ }
+ nfsmout_if(error);
+ if (fsp->np_compcount) {
+ MALLOC(fsp->np_components, char **, fsp->np_compcount * sizeof(char*), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsp->np_components) {
+ error = ENOMEM;
+ }
+ }
+ for (comp = 0; comp < fsp->np_compcount; comp++) {
+ nfsm_chain_get_32(error, nmc, val); /* component length */
+ /* sanity check component length */
+ if (!error && (val == 0)) {
+ /*
+ * Apparently some people think a path with zero components should
+ * be encoded with one zero-length component. So, just ignore any
+ * zero length components.
+ */
+ comp--;
+ fsp->np_compcount--;
+ if (fsp->np_compcount == 0) {
+ FREE(fsp->np_components, M_TEMP);
+ fsp->np_components = NULL;
+ }
+ attrbytes -= NFSX_UNSIGNED;
+ continue;
+ }
+ if (!error && ((val < 1) || (val > MAXPATHLEN))) {
+ error = EBADRPC;
+ }
+ nfsmout_if(error);
+ MALLOC(fsp->np_components[comp], char *, val + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsp->np_components[comp]) {
+ error = ENOMEM;
+ }
+ nfsmout_if(error);
+ nfsm_chain_get_opaque(error, nmc, val, fsp->np_components[comp]); /* component */
+ attrbytes -= NFSX_UNSIGNED + nfsm_rndup(val);
+ }
+ nfsm_chain_get_32(error, nmc, nfslsp->nl_numlocs); /* fs location count */
+ attrbytes -= NFSX_UNSIGNED;
+ /* sanity check location count */
+ if (!error && (nfslsp->nl_numlocs > 256)) {
+ error = EBADRPC;
+ }
+ nfsmout_if(error);
+ if (nfslsp->nl_numlocs > 0) {
+ MALLOC(nfslsp->nl_locations, struct nfs_fs_location **, nfslsp->nl_numlocs * sizeof(struct nfs_fs_location*), M_TEMP, M_WAITOK | M_ZERO);
+ if (!nfslsp->nl_locations) {
+ error = ENOMEM;
+ }
+ }
+ nfsmout_if(error);
+ for (loc = 0; loc < nfslsp->nl_numlocs; loc++) {
+ nfsmout_if(error);
+ MALLOC(fsl, struct nfs_fs_location *, sizeof(struct nfs_fs_location), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsl) {
+ error = ENOMEM;
+ }
+ nfslsp->nl_locations[loc] = fsl;
+ nfsm_chain_get_32(error, nmc, fsl->nl_servcount); /* server count */
+ attrbytes -= NFSX_UNSIGNED;
+ /* sanity check server count */
+ if (!error && ((fsl->nl_servcount < 1) || (fsl->nl_servcount > 256))) {
+ error = EBADRPC;
+ }
+ nfsmout_if(error);
+ MALLOC(fsl->nl_servers, struct nfs_fs_server **, fsl->nl_servcount * sizeof(struct nfs_fs_server*), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsl->nl_servers) {
+ error = ENOMEM;
+ }
+ for (serv = 0; serv < fsl->nl_servcount; serv++) {
+ nfsmout_if(error);
+ MALLOC(fss, struct nfs_fs_server *, sizeof(struct nfs_fs_server), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fss) {
+ error = ENOMEM;
+ }
+ fsl->nl_servers[serv] = fss;
+ nfsm_chain_get_32(error, nmc, val); /* server name length */
+ /* sanity check server name length */
+ if (!error && ((val < 1) || (val > MAXPATHLEN))) {
+ error = EINVAL;
+ }
+ nfsmout_if(error);
+ MALLOC(fss->ns_name, char *, val + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!fss->ns_name) {
+ error = ENOMEM;
+ }
+ nfsm_chain_get_opaque(error, nmc, val, fss->ns_name); /* server name */
+ attrbytes -= NFSX_UNSIGNED + nfsm_rndup(val);
+ nfsmout_if(error);
+ /* copy name to address if it converts to a sockaddr */
+ if (nfs_uaddr2sockaddr(fss->ns_name, (struct sockaddr*)&ss)) {
+ fss->ns_addrcount = 1;
+ MALLOC(fss->ns_addresses, char **, sizeof(char *), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fss->ns_addresses) {
+ error = ENOMEM;
+ }
+ nfsmout_if(error);
+ MALLOC(fss->ns_addresses[0], char *, val + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!fss->ns_addresses[0]) {
+ error = ENOMEM;
+ }
+ nfsmout_if(error);
+ strlcpy(fss->ns_addresses[0], fss->ns_name, val + 1);
+ }
+ }
+ /* get pathname */
+ fsp = &fsl->nl_path;
+ nfsm_chain_get_32(error, nmc, fsp->np_compcount); /* component count */
+ attrbytes -= NFSX_UNSIGNED;
+ /* sanity check component count */
+ if (!error && (fsp->np_compcount > MAXPATHLEN)) {
+ error = EINVAL;
+ }
+ nfsmout_if(error);
+ if (fsp->np_compcount) {
+ MALLOC(fsp->np_components, char **, fsp->np_compcount * sizeof(char*), M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsp->np_components) {
+ error = ENOMEM;
+ }
+ }
+ for (comp = 0; comp < fsp->np_compcount; comp++) {
+ nfsm_chain_get_32(error, nmc, val); /* component length */
+ /* sanity check component length */
+ if (!error && (val == 0)) {
+ /*
+ * Apparently some people think a path with zero components should
+ * be encoded with one zero-length component. So, just ignore any
+ * zero length components.
+ */
+ comp--;
+ fsp->np_compcount--;
+ if (fsp->np_compcount == 0) {
+ FREE(fsp->np_components, M_TEMP);
+ fsp->np_components = NULL;
+ }
+ attrbytes -= NFSX_UNSIGNED;
+ continue;
+ }
+ if (!error && ((val < 1) || (val > MAXPATHLEN))) {
+ error = EINVAL;
+ }
+ nfsmout_if(error);
+ MALLOC(fsp->np_components[comp], char *, val + 1, M_TEMP, M_WAITOK | M_ZERO);
+ if (!fsp->np_components[comp]) {
+ error = ENOMEM;
+ }
+ nfsm_chain_get_opaque(error, nmc, val, fsp->np_components[comp]); /* component */
+ attrbytes -= NFSX_UNSIGNED + nfsm_rndup(val);
}
- nfsm_assert(error, (attrbytes >= 0), EBADRPC);
}
nfsm_assert(error, (attrbytes >= 0), EBADRPC);
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_HIDDEN)) { /* UF_HIDDEN */
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nvap->nva_flags |= NFS_FFLAG_HIDDEN;
- else
+ } else {
nvap->nva_flags &= ~NFS_FFLAG_HIDDEN;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_HOMOGENEOUS)) {
/* XXX If NOT homogeneous, we may need to clear flags on the mount */
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_HOMOGENEOUS;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_HOMOGENEOUS;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MAXFILESIZE)) {
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MAXLINK)) {
nfsm_chain_get_32(error, nmc, nvap->nva_maxlink);
- if (!error && (nfsap->nfsa_maxlink > INT32_MAX))
+ if (!error && (nfsap->nfsa_maxlink > INT32_MAX)) {
nfsap->nfsa_maxlink = INT32_MAX;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MAXNAME)) {
nfsm_chain_get_32(error, nmc, nfsap->nfsa_maxname);
- if (!error && (nfsap->nfsa_maxname > INT32_MAX))
+ if (!error && (nfsap->nfsa_maxname > INT32_MAX)) {
nfsap->nfsa_maxname = INT32_MAX;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MAXREAD)) {
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NO_TRUNC)) {
nfsm_chain_get_32(error, nmc, val);
- if (val)
+ if (val) {
nfsap->nfsa_flags |= NFS_FSFLAG_NO_TRUNC;
- else
+ } else {
nfsap->nfsa_flags &= ~NFS_FSFLAG_NO_TRUNC;
+ }
attrbytes -= NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_NUMLINKS)) {
nvap->nva_nlink = val;
attrbytes -= NFSX_UNSIGNED;
}
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER)) { /* XXX ugly hack for now */
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER)) {
nfsm_chain_get_32(error, nmc, len);
- nfsm_chain_get_opaque_pointer(error, nmc, len, s);
+ if (!error && len >= NFS_MAX_WHO) {
+ error = EBADRPC;
+ }
+ if (!error && (len >= slen)) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ slen = sizeof(sbuf);
+ }
+ /* Let's add a bit more if we can to the allocation as to try and avoid future allocations */
+ MALLOC(s, char*, (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO;
+ } else {
+ error = ENOMEM;
+ }
+ }
+ nfsm_chain_get_opaque(error, nmc, len, s);
+ if (!error) {
+ s[len] = '\0';
+ error = nfs4_id2guid(s, &nvap->nva_uuuid, 0);
+ if (!error) {
+ error = kauth_cred_guid2uid(&nvap->nva_uuuid, &nvap->nva_uid);
+ }
+ if (error) {
+ /* unable to get either GUID or UID, set to default */
+ nvap->nva_uid = (uid_t)(-2);
+ if (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_FAILED_MAPPINGS) {
+ printf("nfs4_parsefattr: owner %s is no one, no %s?, error %d\n", s,
+ kauth_guid_equal(&nvap->nva_uuuid, &kauth_null_guid) ? "guid" : "uid",
+ error);
+ }
+ error = 0;
+ }
+ }
attrbytes -= NFSX_UNSIGNED + nfsm_rndup(len);
- nfsmout_if(error);
- if ((*s >= '0') && (*s <= '9'))
- nvap->nva_uid = strtol(s, NULL, 10);
- else if (!strncmp(s, "nobody@", 7))
- nvap->nva_uid = -2;
- else if (!strncmp(s, "root@", 5))
- nvap->nva_uid = 0;
- else
- nvap->nva_uid = 99; /* unknown */
- }
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER_GROUP)) { /* XXX ugly hack for now */
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER_GROUP)) {
nfsm_chain_get_32(error, nmc, len);
- nfsm_chain_get_opaque_pointer(error, nmc, len, s);
+ if (!error && len >= NFS_MAX_WHO) {
+ error = EBADRPC;
+ }
+ if (!error && (len >= slen)) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ slen = sizeof(sbuf);
+ }
+ /* Let's add a bit more if we can to the allocation as to try and avoid future allocations */
+ MALLOC(s, char*, (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = (len + 16 < NFS_MAX_WHO) ? len + 16 : NFS_MAX_WHO;
+ } else {
+ error = ENOMEM;
+ }
+ }
+ nfsm_chain_get_opaque(error, nmc, len, s);
+ if (!error) {
+ s[len] = '\0';
+ error = nfs4_id2guid(s, &nvap->nva_guuid, 1);
+ if (!error) {
+ error = kauth_cred_guid2gid(&nvap->nva_guuid, &nvap->nva_gid);
+ }
+ if (error) {
+ /* unable to get either GUID or GID, set to default */
+ nvap->nva_gid = (gid_t)(-2);
+ if (nfs_idmap_ctrl & NFS_IDMAP_CTRL_LOG_FAILED_MAPPINGS) {
+ printf("nfs4_parsefattr: group %s is no one, no %s?, error %d\n", s,
+ kauth_guid_equal(&nvap->nva_guuid, &kauth_null_guid) ? "guid" : "gid",
+ error);
+ }
+ error = 0;
+ }
+ }
attrbytes -= NFSX_UNSIGNED + nfsm_rndup(len);
- nfsmout_if(error);
- if ((*s >= '0') && (*s <= '9'))
- nvap->nva_gid = strtol(s, NULL, 10);
- else if (!strncmp(s, "nobody@", 7))
- nvap->nva_gid = -2;
- else if (!strncmp(s, "root@", 5))
- nvap->nva_uid = 0;
- else
- nvap->nva_gid = 99; /* unknown */
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_QUOTA_AVAIL_HARD)) {
nfsm_chain_get_64(error, nmc, dqbp->dqb_bhardlimit);
attrbytes -= 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_ACCESS_SET)) {
- nfsm_chain_adv(error, nmc, 4*NFSX_UNSIGNED); /* just skip it */
+ nfsm_chain_adv(error, nmc, 4 * NFSX_UNSIGNED); /* just skip it */
attrbytes -= 4 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_BACKUP)) {
attrbytes -= 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_DELTA)) { /* skip for now */
- nfsm_chain_adv(error, nmc, 3*NFSX_UNSIGNED);
+ nfsm_chain_adv(error, nmc, 3 * NFSX_UNSIGNED);
attrbytes -= 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_METADATA)) {
attrbytes -= 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_MODIFY_SET)) {
- nfsm_chain_adv(error, nmc, 4*NFSX_UNSIGNED); /* just skip it */
+ nfsm_chain_adv(error, nmc, 4 * NFSX_UNSIGNED); /* just skip it */
attrbytes -= 4 * NFSX_UNSIGNED;
}
- if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MOUNTED_ON_FILEID)) { /* skip for now */
- nfsm_chain_adv(error, nmc, 2*NFSX_UNSIGNED);
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_MOUNTED_ON_FILEID)) {
+#if CONFIG_TRIGGERS
+ /* we prefer the mounted on file ID, so just replace the fileid */
+ nfsm_chain_get_64(error, nmc, nvap->nva_fileid);
+#else
+ nfsm_chain_adv(error, nmc, 2 * NFSX_UNSIGNED);
+#endif
attrbytes -= 2 * NFSX_UNSIGNED;
}
/* advance over any leftover attrbytes */
nfsm_assert(error, (attrbytes >= 0), EBADRPC);
nfsm_chain_adv(error, nmc, nfsm_rndup(attrbytes));
nfsmout:
- return (error);
+ if (error) {
+ nfs_fs_locations_cleanup(nfslsp);
+ }
+ if (!error && rderror) {
+ error = rderror;
+ }
+ /* free up temporary resources */
+ if (s && (s != sbuf)) {
+ FREE(s, M_TEMP);
+ }
+ if (acl) {
+ kauth_acl_free(acl);
+ }
+ if (error && nvap->nva_acl) {
+ kauth_acl_free(nvap->nva_acl);
+ nvap->nva_acl = NULL;
+ }
+ return error;
}
/*
int
nfsm_chain_add_fattr4_f(struct nfsm_chain *nmc, struct vnode_attr *vap, struct nfsmount *nmp)
{
- int error = 0, attrbytes, slen, i;
- uint32_t *pattrbytes;
+ int error = 0, attrbytes, i, isgroup;
+ size_t slen, len;
+ uint32_t *pattrbytes, val, acecount;;
uint32_t bitmap[NFS_ATTR_BITMAP_LEN];
- char s[32];
+ char sbuf[64], *s;
+ kauth_acl_t acl;
+ gid_t gid;
- /*
- * Do this in two passes.
- * First calculate the bitmap, then pack
- * everything together and set the size.
- */
+ s = sbuf;
+ slen = sizeof(sbuf);
- NFS_CLEAR_ATTRIBUTES(bitmap);
- if (VATTR_IS_ACTIVE(vap, va_data_size))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_SIZE);
- if (VATTR_IS_ACTIVE(vap, va_acl)) {
- // NFS_BITMAP_SET(bitmap, NFS_FATTR_ACL)
- }
- if (VATTR_IS_ACTIVE(vap, va_flags)) {
- NFS_BITMAP_SET(bitmap, NFS_FATTR_ARCHIVE);
- NFS_BITMAP_SET(bitmap, NFS_FATTR_HIDDEN);
- }
- // NFS_BITMAP_SET(bitmap, NFS_FATTR_MIMETYPE)
- if (VATTR_IS_ACTIVE(vap, va_mode))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_MODE);
- if (VATTR_IS_ACTIVE(vap, va_uid))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_OWNER);
- if (VATTR_IS_ACTIVE(vap, va_gid))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_OWNER_GROUP);
- // NFS_BITMAP_SET(bitmap, NFS_FATTR_SYSTEM)
- if (vap->va_vaflags & VA_UTIMES_NULL) {
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_ACCESS_SET);
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_MODIFY_SET);
- } else {
- if (VATTR_IS_ACTIVE(vap, va_access_time))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_ACCESS_SET);
- if (VATTR_IS_ACTIVE(vap, va_modify_time))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_MODIFY_SET);
- }
- if (VATTR_IS_ACTIVE(vap, va_backup_time))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_BACKUP);
- if (VATTR_IS_ACTIVE(vap, va_create_time))
- NFS_BITMAP_SET(bitmap, NFS_FATTR_TIME_CREATE);
- /* and limit to what is supported by server */
- for (i=0; i < NFS_ATTR_BITMAP_LEN; i++)
- bitmap[i] &= nmp->nm_fsattr.nfsa_supp_attr[i];
+ /* First calculate the bitmap... */
+ nfs_vattr_set_bitmap(nmp, bitmap, vap);
/*
* Now pack it all together:
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_SIZE)) {
nfsm_chain_add_64(error, nmc, vap->va_data_size);
- attrbytes += 2*NFSX_UNSIGNED;
+ attrbytes += 2 * NFSX_UNSIGNED;
+ }
+ if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL)) {
+ acl = vap->va_acl;
+ if (!acl || (acl->acl_entrycount == KAUTH_FILESEC_NOACL)) {
+ acecount = 0;
+ } else {
+ acecount = acl->acl_entrycount;
+ }
+ nfsm_chain_add_32(error, nmc, acecount);
+ attrbytes += NFSX_UNSIGNED;
+ for (i = 0; !error && (i < (int)acecount); i++) {
+ val = (acl->acl_ace[i].ace_flags & KAUTH_ACE_KINDMASK);
+ val = nfs4_ace_vfstype_to_nfstype(val, &error);
+ nfsm_chain_add_32(error, nmc, val);
+ val = nfs4_ace_vfsflags_to_nfsflags(acl->acl_ace[i].ace_flags);
+ isgroup = (kauth_cred_guid2gid(&acl->acl_ace[i].ace_applicable, &gid) == 0);
+ val |= (isgroup) ? NFS_ACE_IDENTIFIER_GROUP : 0;
+ nfsm_chain_add_32(error, nmc, val);
+ val = nfs4_ace_vfsrights_to_nfsmask(acl->acl_ace[i].ace_rights);
+ nfsm_chain_add_32(error, nmc, val);
+ len = slen;
+ error = nfs4_guid2id(&acl->acl_ace[i].ace_applicable, s, &len, isgroup);
+ if (error == ENOSPC) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ }
+ len += 8;
+ MALLOC(s, char*, len, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = len;
+ error = nfs4_guid2id(&acl->acl_ace[i].ace_applicable, s, &len, isgroup);
+ } else {
+ error = ENOMEM;
+ }
+ }
+ nfsm_chain_add_name(error, nmc, s, len, nmp);
+ attrbytes += 4 * NFSX_UNSIGNED + nfsm_rndup(len);
+ }
}
- // NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ACL)
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_ARCHIVE)) {
nfsm_chain_add_32(error, nmc, (vap->va_flags & SF_ARCHIVED) ? 1 : 0);
attrbytes += NFSX_UNSIGNED;
attrbytes += NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER)) {
- slen = snprintf(s, sizeof(s), "%d", vap->va_uid);
- nfsm_chain_add_string(error, nmc, s, slen);
- attrbytes += NFSX_UNSIGNED + nfsm_rndup(slen);
+ nfsmout_if(error);
+ /* if we have va_uuuid use it, otherwise use uid */
+ if (!VATTR_IS_ACTIVE(vap, va_uuuid)) {
+ error = kauth_cred_uid2guid(vap->va_uid, &vap->va_uuuid);
+ nfsmout_if(error);
+ }
+ len = slen;
+ error = nfs4_guid2id(&vap->va_uuuid, s, &len, 0);
+ if (error == ENOSPC) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ }
+ len += 8;
+ MALLOC(s, char*, len, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = len;
+ error = nfs4_guid2id(&vap->va_uuuid, s, &len, 0);
+ } else {
+ error = ENOMEM;
+ }
+ }
+ nfsm_chain_add_name(error, nmc, s, len, nmp);
+ attrbytes += NFSX_UNSIGNED + nfsm_rndup(len);
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_OWNER_GROUP)) {
- slen = snprintf(s, sizeof(s), "%d", vap->va_gid);
- nfsm_chain_add_string(error, nmc, s, slen);
- attrbytes += NFSX_UNSIGNED + nfsm_rndup(slen);
+ nfsmout_if(error);
+ /* if we have va_guuid use it, otherwise use gid */
+ if (!VATTR_IS_ACTIVE(vap, va_guuid)) {
+ error = kauth_cred_gid2guid(vap->va_gid, &vap->va_guuid);
+ nfsmout_if(error);
+ }
+ len = slen;
+ error = nfs4_guid2id(&vap->va_guuid, s, &len, 1);
+ if (error == ENOSPC) {
+ if (s != sbuf) {
+ FREE(s, M_TEMP);
+ s = sbuf;
+ }
+ len += 8;
+ MALLOC(s, char*, len, M_TEMP, M_WAITOK);
+ if (s) {
+ slen = len;
+ error = nfs4_guid2id(&vap->va_guuid, s, &len, 1);
+ } else {
+ error = ENOMEM;
+ }
+ }
+ nfsm_chain_add_name(error, nmc, s, len, nmp);
+ attrbytes += NFSX_UNSIGNED + nfsm_rndup(len);
}
// NFS_BITMAP_SET(bitmap, NFS_FATTR_SYSTEM)
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_ACCESS_SET)) {
if (vap->va_vaflags & VA_UTIMES_NULL) {
- nfsm_chain_add_32(error, nmc, NFS_TIME_SET_TO_SERVER);
+ nfsm_chain_add_32(error, nmc, NFS4_TIME_SET_TO_SERVER);
attrbytes += NFSX_UNSIGNED;
} else {
- nfsm_chain_add_32(error, nmc, NFS_TIME_SET_TO_CLIENT);
+ nfsm_chain_add_32(error, nmc, NFS4_TIME_SET_TO_CLIENT);
nfsm_chain_add_64(error, nmc, vap->va_access_time.tv_sec);
nfsm_chain_add_32(error, nmc, vap->va_access_time.tv_nsec);
- attrbytes += 4*NFSX_UNSIGNED;
+ attrbytes += 4 * NFSX_UNSIGNED;
}
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_BACKUP)) {
nfsm_chain_add_64(error, nmc, vap->va_backup_time.tv_sec);
nfsm_chain_add_32(error, nmc, vap->va_backup_time.tv_nsec);
- attrbytes += 3*NFSX_UNSIGNED;
+ attrbytes += 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_CREATE)) {
nfsm_chain_add_64(error, nmc, vap->va_create_time.tv_sec);
nfsm_chain_add_32(error, nmc, vap->va_create_time.tv_nsec);
- attrbytes += 3*NFSX_UNSIGNED;
+ attrbytes += 3 * NFSX_UNSIGNED;
}
if (NFS_BITMAP_ISSET(bitmap, NFS_FATTR_TIME_MODIFY_SET)) {
if (vap->va_vaflags & VA_UTIMES_NULL) {
- nfsm_chain_add_32(error, nmc, NFS_TIME_SET_TO_SERVER);
+ nfsm_chain_add_32(error, nmc, NFS4_TIME_SET_TO_SERVER);
attrbytes += NFSX_UNSIGNED;
} else {
- nfsm_chain_add_32(error, nmc, NFS_TIME_SET_TO_CLIENT);
+ nfsm_chain_add_32(error, nmc, NFS4_TIME_SET_TO_CLIENT);
nfsm_chain_add_64(error, nmc, vap->va_modify_time.tv_sec);
nfsm_chain_add_32(error, nmc, vap->va_modify_time.tv_nsec);
- attrbytes += 4*NFSX_UNSIGNED;
+ attrbytes += 4 * NFSX_UNSIGNED;
}
}
nfsmout_if(error);
/* Now, set the attribute data length */
*pattrbytes = txdr_unsigned(attrbytes);
nfsmout:
- return (error);
+ if (s && (s != sbuf)) {
+ FREE(s, M_TEMP);
+ }
+ return error;
+}
+#endif /* CONFIG_NFS4 */
+
+/*
+ * Got the given error and need to start recovery (if not already started).
+ * Note: nmp must be locked!
+ */
+void
+nfs_need_recover(struct nfsmount *nmp, int error)
+{
+ int wake = !(nmp->nm_state & NFSSTA_RECOVER);
+
+ nmp->nm_state |= NFSSTA_RECOVER;
+ if ((error == NFSERR_ADMIN_REVOKED) ||
+ (error == NFSERR_EXPIRED) ||
+ (error == NFSERR_STALE_CLIENTID)) {
+ nmp->nm_state |= NFSSTA_RECOVER_EXPIRED;
+ }
+ if (wake) {
+ nfs_mount_sock_thread_wake(nmp);
+ }
+}
+
+#if CONFIG_NFS4
+/*
+ * After recovery due to state expiry, check each node and
+ * drop any lingering delegation we thought we had.
+ *
+ * If a node has an open that is not lost and is not marked
+ * for reopen, then we hold onto any delegation because it is
+ * likely newly-granted.
+ */
+static void
+nfs4_expired_check_delegation(nfsnode_t np, vfs_context_t ctx)
+{
+ struct nfsmount *nmp = NFSTONMP(np);
+ struct nfs_open_file *nofp;
+ int drop = 1;
+
+ if ((np->n_flag & NREVOKE) || !(np->n_openflags & N_DELEG_MASK)) {
+ return;
+ }
+
+ lck_mtx_lock(&np->n_openlock);
+
+ TAILQ_FOREACH(nofp, &np->n_opens, nof_link) {
+ if (!nofp->nof_opencnt) {
+ continue;
+ }
+ if (nofp->nof_flags & NFS_OPEN_FILE_LOST) {
+ continue;
+ }
+ if (nofp->nof_flags & NFS_OPEN_FILE_REOPEN) {
+ continue;
+ }
+ /* we have an open that is not lost and not marked for reopen */
+ // XXX print out what's keeping this node from dropping the delegation.
+ NP(nofp->nof_np, "nfs4_expired_check_delegation: !drop: opencnt %d flags 0x%x access %d %d mmap %d %d",
+ nofp->nof_opencnt, nofp->nof_flags,
+ nofp->nof_access, nofp->nof_deny,
+ nofp->nof_mmap_access, nofp->nof_mmap_deny);
+ drop = 0;
+ break;
+ }
+
+ if (drop) {
+ /* need to drop a delegation */
+ if (np->n_dreturn.tqe_next != NFSNOLIST) {
+ /* remove this node from the delegation return list */
+ lck_mtx_lock(&nmp->nm_lock);
+ if (np->n_dreturn.tqe_next != NFSNOLIST) {
+ TAILQ_REMOVE(&nmp->nm_dreturnq, np, n_dreturn);
+ np->n_dreturn.tqe_next = NFSNOLIST;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ }
+ if (np->n_openflags & N_DELEG_MASK) {
+ np->n_openflags &= ~N_DELEG_MASK;
+ lck_mtx_lock(&nmp->nm_lock);
+ if (np->n_dlink.tqe_next != NFSNOLIST) {
+ TAILQ_REMOVE(&nmp->nm_delegations, np, n_dlink);
+ np->n_dlink.tqe_next = NFSNOLIST;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ nfs4_delegreturn_rpc(nmp, np->n_fhp, np->n_fhsize, &np->n_dstateid,
+ 0, vfs_context_thread(ctx), vfs_context_ucred(ctx));
+ }
+ }
+
+ lck_mtx_unlock(&np->n_openlock);
}
+#endif /* CONFIG_NFS4*/
+
+/*
+ * Recover state for an NFS mount.
+ *
+ * Iterates over all open files, reclaiming opens and lock state.
+ */
+void
+nfs_recover(struct nfsmount *nmp)
+{
+ struct timespec ts = { .tv_sec = 1, .tv_nsec = 0 };
+ int error, lost, reopen;
+ struct nfs_open_owner *noop;
+ struct nfs_open_file *nofp;
+ struct nfs_file_lock *nflp, *nextnflp;
+ struct nfs_lock_owner *nlop;
+ thread_t thd = current_thread();
+#if CONFIG_NFS4
+ nfsnode_t np, nextnp;
+#endif
+ struct timeval now;
+
+restart:
+ error = 0;
+ lck_mtx_lock(&nmp->nm_lock);
+ /*
+ * First, wait for the state inuse count to go to zero so
+ * we know there are no state operations in progress.
+ */
+ do {
+ if ((error = nfs_sigintr(nmp, NULL, NULL, 1))) {
+ break;
+ }
+ if (!(nmp->nm_sockflags & NMSOCK_READY)) {
+ error = EPIPE;
+ }
+ if (nmp->nm_state & (NFSSTA_FORCE | NFSSTA_DEAD)) {
+ error = ENXIO;
+ }
+ if (nmp->nm_sockflags & NMSOCK_UNMOUNT) {
+ error = ENXIO;
+ }
+ if (error) {
+ break;
+ }
+ if (nmp->nm_stateinuse) {
+ msleep(&nmp->nm_stateinuse, &nmp->nm_lock, (PZERO - 1), "nfsrecoverstartwait", &ts);
+ }
+ } while (nmp->nm_stateinuse);
+ if (error) {
+ if (error == EPIPE) {
+ printf("nfs recovery reconnecting for %s, 0x%x\n", vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid);
+ } else {
+ printf("nfs recovery aborted for %s, 0x%x\n", vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid);
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ return;
+ }
+
+ microuptime(&now);
+ if (now.tv_sec == nmp->nm_recover_start) {
+ printf("nfs recovery throttled for %s, 0x%x\n", vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid);
+ lck_mtx_unlock(&nmp->nm_lock);
+ tsleep(nfs_recover, (PZERO - 1), "nfsrecoverrestart", hz);
+ goto restart;
+ }
+ nmp->nm_recover_start = now.tv_sec;
+ if (++nmp->nm_stategenid == 0) {
+ ++nmp->nm_stategenid;
+ }
+ printf("nfs recovery started for %s, 0x%x\n", vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid);
+ lck_mtx_unlock(&nmp->nm_lock);
+
+ /* for each open owner... */
+ TAILQ_FOREACH(noop, &nmp->nm_open_owners, noo_link) {
+ /* for each of its opens... */
+ TAILQ_FOREACH(nofp, &noop->noo_opens, nof_oolink) {
+ if (!nofp->nof_access || (nofp->nof_flags & NFS_OPEN_FILE_LOST) || (nofp->nof_np->n_flag & NREVOKE)) {
+ continue;
+ }
+ lost = reopen = 0;
+ /* for NFSv2/v3, just skip straight to lock reclaim */
+ if (nmp->nm_vers < NFS_VER4) {
+ goto reclaim_locks;
+ }
+#if CONFIG_NFS4
+ if (nofp->nof_rw_drw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_BOTH, NFS_OPEN_SHARE_DENY_BOTH);
+ }
+ if (!error && nofp->nof_w_drw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_WRITE, NFS_OPEN_SHARE_DENY_BOTH);
+ }
+ if (!error && nofp->nof_r_drw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_READ, NFS_OPEN_SHARE_DENY_BOTH);
+ }
+ if (!error && nofp->nof_rw_dw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_BOTH, NFS_OPEN_SHARE_DENY_WRITE);
+ }
+ if (!error && nofp->nof_w_dw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_WRITE, NFS_OPEN_SHARE_DENY_WRITE);
+ }
+ if (!error && nofp->nof_r_dw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_READ, NFS_OPEN_SHARE_DENY_WRITE);
+ }
+ /*
+ * deny-none opens with no locks can just be reopened (later) if reclaim fails.
+ */
+ if (!error && nofp->nof_rw) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_BOTH, NFS_OPEN_SHARE_DENY_NONE);
+ if ((error == NFSERR_ADMIN_REVOKED) || (error == NFSERR_EXPIRED) || (error == NFSERR_NO_GRACE)) {
+ reopen = error;
+ error = 0;
+ }
+ }
+ if (!error && !reopen && nofp->nof_w) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_WRITE, NFS_OPEN_SHARE_DENY_NONE);
+ if ((error == NFSERR_ADMIN_REVOKED) || (error == NFSERR_EXPIRED) || (error == NFSERR_NO_GRACE)) {
+ reopen = error;
+ error = 0;
+ }
+ }
+ if (!error && !reopen && nofp->nof_r) {
+ error = nfs4_open_reclaim_rpc(nofp, NFS_OPEN_SHARE_ACCESS_READ, NFS_OPEN_SHARE_DENY_NONE);
+ if ((error == NFSERR_ADMIN_REVOKED) || (error == NFSERR_EXPIRED) || (error == NFSERR_NO_GRACE)) {
+ reopen = error;
+ error = 0;
+ }
+ }
+
+ /*
+ * If we hold delegated state but we don't have any non-delegated opens,
+ * then we should attempt to claim that state now (but don't return the
+ * delegation unless asked to).
+ */
+ if ((nofp->nof_d_rw_drw || nofp->nof_d_w_drw || nofp->nof_d_r_drw ||
+ nofp->nof_d_rw_dw || nofp->nof_d_w_dw || nofp->nof_d_r_dw ||
+ nofp->nof_d_rw || nofp->nof_d_w || nofp->nof_d_r) &&
+ (!nofp->nof_rw_drw && !nofp->nof_w_drw && !nofp->nof_r_drw &&
+ !nofp->nof_rw_dw && !nofp->nof_w_dw && !nofp->nof_r_dw &&
+ !nofp->nof_rw && !nofp->nof_w && !nofp->nof_r)) {
+ if (!error && !nfs_open_state_set_busy(nofp->nof_np, NULL)) {
+ error = nfs4_claim_delegated_state_for_node(nofp->nof_np, R_RECOVER);
+ if (!error && (nofp->nof_flags & NFS_OPEN_FILE_REOPEN)) {
+ reopen = EAGAIN;
+ }
+ nfs_open_state_clear_busy(nofp->nof_np);
+ /* if claim didn't go well, we may need to return delegation now */
+ if (nofp->nof_np->n_openflags & N_DELEG_RETURN) {
+ nfs4_delegation_return(nofp->nof_np, R_RECOVER, thd, noop->noo_cred);
+ if (!(nmp->nm_sockflags & NMSOCK_READY)) {
+ error = ETIMEDOUT; /* looks like we need a reconnect */
+ }
+ }
+ }
+ }
+
+ /*
+ * Handle any issue claiming open state.
+ * Potential reopens need to first confirm that there are no locks.
+ */
+ if (error || reopen) {
+ /* restart recovery? */
+ if ((error == ETIMEDOUT) || nfs_mount_state_error_should_restart(error)) {
+ if (error == ETIMEDOUT) {
+ nfs_need_reconnect(nmp);
+ }
+ tsleep(nfs_recover, (PZERO - 1), "nfsrecoverrestart", hz);
+ printf("nfs recovery restarting for %s, 0x%x, error %d\n",
+ vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid, error);
+ goto restart;
+ }
+ if (reopen && (nfs_check_for_locks(noop, nofp) == 0)) {
+ /* just reopen the file on next access */
+ NP(nofp->nof_np, "nfs_recover: %d, need reopen for %d %p 0x%x", reopen,
+ kauth_cred_getuid(noop->noo_cred), nofp->nof_np, nofp->nof_np->n_flag);
+ lck_mtx_lock(&nofp->nof_lock);
+ nofp->nof_flags |= NFS_OPEN_FILE_REOPEN;
+ lck_mtx_unlock(&nofp->nof_lock);
+ } else {
+ /* open file state lost */
+ if (reopen) {
+ NP(nofp->nof_np, "nfs_recover: %d, can't reopen because of locks %d %p", reopen,
+ kauth_cred_getuid(noop->noo_cred), nofp->nof_np);
+ }
+ lost = 1;
+ error = 0;
+ reopen = 0;
+ }
+ } else {
+ /* no error, so make sure the reopen flag isn't set */
+ lck_mtx_lock(&nofp->nof_lock);
+ nofp->nof_flags &= ~NFS_OPEN_FILE_REOPEN;
+ lck_mtx_unlock(&nofp->nof_lock);
+ }
+#endif /* CONFIG_NFS4 */
+ /*
+ * Scan this node's lock owner list for entries with this open owner,
+ * then walk the lock owner's held lock list recovering each lock.
+ */
+reclaim_locks:
+ TAILQ_FOREACH(nlop, &nofp->nof_np->n_lock_owners, nlo_link) {
+ if (lost || reopen) {
+ break;
+ }
+ if (nlop->nlo_open_owner != noop) {
+ continue;
+ }
+ TAILQ_FOREACH_SAFE(nflp, &nlop->nlo_locks, nfl_lolink, nextnflp) {
+ /* skip dead & blocked lock requests (shouldn't be any in the held lock list) */
+ if (nflp->nfl_flags & (NFS_FILE_LOCK_DEAD | NFS_FILE_LOCK_BLOCKED)) {
+ continue;
+ }
+ /* skip delegated locks */
+ if (nflp->nfl_flags & NFS_FILE_LOCK_DELEGATED) {
+ continue;
+ }
+ error = nmp->nm_funcs->nf_setlock_rpc(nofp->nof_np, nofp, nflp, 1, R_RECOVER, thd, noop->noo_cred);
+ if (error) {
+ NP(nofp->nof_np, "nfs: lock reclaim (0x%llx, 0x%llx) %s %d",
+ nflp->nfl_start, nflp->nfl_end,
+ error ? "failed" : "succeeded", error);
+ }
+ if (!error) {
+ continue;
+ }
+ /* restart recovery? */
+ if ((error == ETIMEDOUT) || nfs_mount_state_error_should_restart(error)) {
+ if (error == ETIMEDOUT) {
+ nfs_need_reconnect(nmp);
+ }
+ tsleep(nfs_recover, (PZERO - 1), "nfsrecoverrestart", hz);
+ printf("nfs recovery restarting for %s, 0x%x, error %d\n",
+ vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid, error);
+ goto restart;
+ }
+ /* lock state lost - attempt to close file */
+ lost = 1;
+ error = 0;
+ break;
+ }
+ }
+#if CONFIG_NFS4
+ /*
+ * If we've determined that we need to reopen the file then we probably
+ * didn't receive any delegation we think we hold. We should attempt to
+ * return that delegation (and claim any delegated state).
+ *
+ * If we hold a delegation that is marked for return, then we should
+ * return it now.
+ */
+ if ((nofp->nof_np->n_openflags & N_DELEG_RETURN) ||
+ (reopen && (nofp->nof_np->n_openflags & N_DELEG_MASK))) {
+ nfs4_delegation_return(nofp->nof_np, R_RECOVER, thd, noop->noo_cred);
+ if (!(nmp->nm_sockflags & NMSOCK_READY)) {
+ /* looks like we need a reconnect */
+ tsleep(nfs_recover, (PZERO - 1), "nfsrecoverrestart", hz);
+ printf("nfs recovery restarting for %s, 0x%x, error %d\n",
+ vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid, error);
+ goto restart;
+ }
+ }
+#endif
+ if (lost) {
+ /* revoke open file state */
+ NP(nofp->nof_np, "nfs_recover: state lost for %d %p 0x%x",
+ kauth_cred_getuid(noop->noo_cred), nofp->nof_np, nofp->nof_np->n_flag);
+ nfs_revoke_open_state_for_node(nofp->nof_np);
+ }
+ }
+ }
+ if (!error) {
+ /* If state expired, make sure we're not holding onto any stale delegations */
+ lck_mtx_lock(&nmp->nm_lock);
+#if CONFIG_NFS4
+ if ((nmp->nm_vers >= NFS_VER4) && (nmp->nm_state & NFSSTA_RECOVER_EXPIRED)) {
+recheckdeleg:
+ TAILQ_FOREACH_SAFE(np, &nmp->nm_delegations, n_dlink, nextnp) {
+ lck_mtx_unlock(&nmp->nm_lock);
+ nfs4_expired_check_delegation(np, vfs_context_kernel());
+ lck_mtx_lock(&nmp->nm_lock);
+ if (nextnp == NFSNOLIST) {
+ goto recheckdeleg;
+ }
+ }
+ }
+#endif
+ nmp->nm_state &= ~(NFSSTA_RECOVER | NFSSTA_RECOVER_EXPIRED);
+ wakeup(&nmp->nm_state);
+ printf("nfs recovery completed for %s, 0x%x\n",
+ vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid);
+ lck_mtx_unlock(&nmp->nm_lock);
+ } else {
+ printf("nfs recovery failed for %s, 0x%x, error %d\n",
+ vfs_statfs(nmp->nm_mountp)->f_mntfromname, nmp->nm_stategenid, error);
+ }
+}
projects / apple / xnu.git / blobdiff