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Merge branch 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux 

* 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux:
  knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME
  knfsd: nfsv4 delegation recall should take reference on client
  knfsd: don't shutdown callbacks until nfsv4 client is freed
  knfsd: let nfsd manage timing out its own leases
  knfsd: Add source address to sunrpc svc errors
  knfsd: 64 bit ino support for NFS server
  svcgss: move init code into separate function
  knfsd: remove code duplication in nfsd4_setclientid()
  nfsd warning fix
  knfsd: fix callback rpc cred
  knfsd: move nfsv4 slab creation/destruction to module init/exit
  knfsd: spawn kernel thread to probe callback channel
  knfsd: nfs4 name->id mapping not correctly parsing negative downcall
  knfsd: demote some printk()s to dprintk()s
  knfsd: cleanup of nfsd4 cmp_* functions
  knfsd: delete code made redundant by map_new_errors
  nfsd: fix horrible indentation in nfsd_setattr
  nfsd: remove unused cache_for_each macro
  nfsd: tone down inaccurate dprintk
This commit is contained in:
Linus Torvalds 2007-10-15 08:16:53 -07:00
parent b9090071a5 a16e92edcd
commit 37ca506adc
16 changed files with 324 additions and 374 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
fs/nfsd/nfs3xdr.c
View File

@ -174,9 +174,6 @@ static __be32 *
encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
struct kstat *stat)
{
struct dentry *dentry = fhp->fh_dentry;
struct timespec time;
*p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
*p++ = htonl((u32) stat->mode);
*p++ = htonl((u32) stat->nlink);
@ -191,10 +188,9 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
*p++ = htonl((u32) MAJOR(stat->rdev));
*p++ = htonl((u32) MINOR(stat->rdev));
p = encode_fsid(p, fhp);
p = xdr_encode_hyper(p, (u64) stat->ino);
p = xdr_encode_hyper(p, stat->ino);
p = encode_time3(p, &stat->atime);
lease_get_mtime(dentry->d_inode, &time);
p = encode_time3(p, &time);
p = encode_time3(p, &stat->mtime);
p = encode_time3(p, &stat->ctime);
return p;
@ -203,31 +199,9 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
static __be32 *
encode_saved_post_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
struct inode *inode = fhp->fh_dentry->d_inode;
/* Attributes to follow */
*p++ = xdr_one;
*p++ = htonl(nfs3_ftypes[(fhp->fh_post_mode & S_IFMT) >> 12]);
*p++ = htonl((u32) fhp->fh_post_mode);
*p++ = htonl((u32) fhp->fh_post_nlink);
*p++ = htonl((u32) nfsd_ruid(rqstp, fhp->fh_post_uid));
*p++ = htonl((u32) nfsd_rgid(rqstp, fhp->fh_post_gid));
if (S_ISLNK(fhp->fh_post_mode) && fhp->fh_post_size > NFS3_MAXPATHLEN) {
p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
} else {
p = xdr_encode_hyper(p, (u64) fhp->fh_post_size);
}
p = xdr_encode_hyper(p, ((u64)fhp->fh_post_blocks) << 9);
*p++ = fhp->fh_post_rdev[0];
*p++ = fhp->fh_post_rdev[1];
p = encode_fsid(p, fhp);
p = xdr_encode_hyper(p, (u64) inode->i_ino);
p = encode_time3(p, &fhp->fh_post_atime);
p = encode_time3(p, &fhp->fh_post_mtime);
p = encode_time3(p, &fhp->fh_post_ctime);
return p;
return encode_fattr3(rqstp, p, fhp, &fhp->fh_post_attr);
}
/*
@ -246,6 +220,7 @@ encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
err = vfs_getattr(fhp->fh_export->ex_mnt, dentry, &stat);
if (!err) {
*p++ = xdr_one; /* attributes follow */
lease_get_mtime(dentry->d_inode, &stat.mtime);
return encode_fattr3(rqstp, p, fhp, &stat);
}
}
@ -284,6 +259,23 @@ encode_wcc_data(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
return encode_post_op_attr(rqstp, p, fhp);
}
/*
* Fill in the post_op attr for the wcc data
*/
void fill_post_wcc(struct svc_fh *fhp)
{
int err;
if (fhp->fh_post_saved)
printk("nfsd: inode locked twice during operation.\n");
err = vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry,
&fhp->fh_post_attr);
if (err)
fhp->fh_post_saved = 0;
else
fhp->fh_post_saved = 1;
}
/*
* XDR decode functions
@ -643,8 +635,11 @@ int
nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_attrstat *resp)
{
if (resp->status == 0)
if (resp->status == 0) {
lease_get_mtime(resp->fh.fh_dentry->d_inode,
&resp->stat.mtime);
p = encode_fattr3(rqstp, p, &resp->fh, &resp->stat);
}
return xdr_ressize_check(rqstp, p);
}
@ -802,7 +797,7 @@ nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
static __be32 *
encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name,
int namlen, ino_t ino)
int namlen, u64 ino)
{
*p++ = xdr_one; /* mark entry present */
p = xdr_encode_hyper(p, ino); /* file id */
@ -873,7 +868,7 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp,
#define NFS3_ENTRYPLUS_BAGGAGE (1 + 21 + 1 + (NFS3_FHSIZE >> 2))
static int
encode_entry(struct readdir_cd *ccd, const char *name, int namlen,
loff_t offset, ino_t ino, unsigned int d_type, int plus)
loff_t offset, u64 ino, unsigned int d_type, int plus)
{
struct nfsd3_readdirres *cd = container_of(ccd, struct nfsd3_readdirres,
common);

85
fs/nfsd/nfs4callback.c
View File

@ -39,6 +39,7 @@
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/clnt.h>
@ -343,26 +344,28 @@ static struct rpc_version * nfs_cb_version[] = {
&nfs_cb_version4,
};
/*
* Use the SETCLIENTID credential
*/
static struct rpc_cred *
nfsd4_lookupcred(struct nfs4_client *clp, int taskflags)
/* Reference counting, callback cleanup, etc., all look racy as heck.
* And why is cb_set an atomic? */
static int do_probe_callback(void *data)
{
struct auth_cred acred;
struct rpc_clnt *clnt = clp->cl_callback.cb_client;
struct rpc_cred *ret;
struct nfs4_client *clp = data;
struct nfs4_callback *cb = &clp->cl_callback;
struct rpc_message msg = {
.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
.rpc_argp = clp,
};
int status;
get_group_info(clp->cl_cred.cr_group_info);
acred.uid = clp->cl_cred.cr_uid;
acred.gid = clp->cl_cred.cr_gid;
acred.group_info = clp->cl_cred.cr_group_info;
status = rpc_call_sync(cb->cb_client, &msg, RPC_TASK_SOFT);
dprintk("NFSD: looking up %s cred\n",
clnt->cl_auth->au_ops->au_name);
ret = rpcauth_lookup_credcache(clnt->cl_auth, &acred, taskflags);
put_group_info(clp->cl_cred.cr_group_info);
return ret;
if (status) {
rpc_shutdown_client(cb->cb_client);
cb->cb_client = NULL;
} else
atomic_set(&cb->cb_set, 1);
put_nfs4_client(clp);
return 0;
}
/*
@ -390,11 +393,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
.authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
.flags = (RPC_CLNT_CREATE_NOPING),
};
struct rpc_message msg = {
.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
.rpc_argp = clp,
};
int status;
struct task_struct *t;
if (atomic_read(&cb->cb_set))
return;
@ -426,16 +425,11 @@ nfsd4_probe_callback(struct nfs4_client *clp)
/* the task holds a reference to the nfs4_client struct */
atomic_inc(&clp->cl_count);
msg.rpc_cred = nfsd4_lookupcred(clp,0);
if (IS_ERR(msg.rpc_cred))
goto out_release_clp;
status = rpc_call_async(cb->cb_client, &msg, RPC_TASK_ASYNC, &nfs4_cb_null_ops, NULL);
put_rpccred(msg.rpc_cred);
t = kthread_run(do_probe_callback, clp, "nfs4_cb_probe");
if (status != 0) {
dprintk("NFSD: asynchronous NFSPROC4_CB_NULL failed!\n");
if (IS_ERR(t))
goto out_release_clp;
}
return;
out_release_clp:
@ -447,30 +441,6 @@ nfsd4_probe_callback(struct nfs4_client *clp)
(int)clp->cl_name.len, clp->cl_name.data);
}
static void
nfs4_cb_null(struct rpc_task *task, void *dummy)
{
struct nfs4_client *clp = (struct nfs4_client *)task->tk_msg.rpc_argp;
struct nfs4_callback *cb = &clp->cl_callback;
__be32 addr = htonl(cb->cb_addr);
dprintk("NFSD: nfs4_cb_null task->tk_status %d\n", task->tk_status);
if (task->tk_status < 0) {
dprintk("NFSD: callback establishment to client %.*s failed\n",
(int)clp->cl_name.len, clp->cl_name.data);
goto out;
}
atomic_set(&cb->cb_set, 1);
dprintk("NFSD: callback set to client %u.%u.%u.%u\n", NIPQUAD(addr));
out:
put_nfs4_client(clp);
}
static const struct rpc_call_ops nfs4_cb_null_ops = {
.rpc_call_done = nfs4_cb_null,
};
/*
* called with dp->dl_count inc'ed.
* nfs4_lock_state() may or may not have been called.
@ -491,10 +461,6 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
if ((!atomic_read(&clp->cl_callback.cb_set)) || !clnt)
return;
msg.rpc_cred = nfsd4_lookupcred(clp, 0);
if (IS_ERR(msg.rpc_cred))
goto out;
cbr->cbr_trunc = 0; /* XXX need to implement truncate optimization */
cbr->cbr_dp = dp;
@ -515,13 +481,12 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFT);
}
out_put_cred:
put_rpccred(msg.rpc_cred);
out:
if (status == -EIO)
atomic_set(&clp->cl_callback.cb_set, 0);
/* Success or failure, now we're either waiting for lease expiration
* or deleg_return. */
dprintk("NFSD: nfs4_cb_recall: dp %p dl_flock %p dl_count %d\n",dp, dp->dl_flock, atomic_read(&dp->dl_count));
put_nfs4_client(clp);
nfs4_put_delegation(dp);
return;
}

8
fs/nfsd/nfs4idmap.c
View File

@ -207,6 +207,7 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
{
struct ent ent, *res;
char *buf1, *bp;
int len;
int error = -EINVAL;
if (buf[buflen - 1] != '\n')
@ -248,10 +249,11 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
goto out;
/* Name */
error = qword_get(&buf, buf1, PAGE_SIZE);
if (error == -EINVAL)
error = -EINVAL;
len = qword_get(&buf, buf1, PAGE_SIZE);
if (len < 0)
goto out;
if (error == -ENOENT)
if (len == 0)
set_bit(CACHE_NEGATIVE, &ent.h.flags);
else {
if (error >= IDMAP_NAMESZ) {

4
fs/nfsd/nfs4proc.c
View File

@ -238,12 +238,12 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
break;
case NFS4_OPEN_CLAIM_DELEGATE_PREV:
open->op_stateowner->so_confirmed = 1;
printk("NFSD: unsupported OPEN claim type %d\n",
dprintk("NFSD: unsupported OPEN claim type %d\n",
open->op_claim_type);
status = nfserr_notsupp;
goto out;
default:
printk("NFSD: Invalid OPEN claim type %d\n",
dprintk("NFSD: Invalid OPEN claim type %d\n",
open->op_claim_type);
status = nfserr_inval;
goto out;

200
fs/nfsd/nfs4state.c
View File

@ -358,9 +358,22 @@ alloc_client(struct xdr_netobj name)
return clp;
}
static void
shutdown_callback_client(struct nfs4_client *clp)
{
struct rpc_clnt *clnt = clp->cl_callback.cb_client;
/* shutdown rpc client, ending any outstanding recall rpcs */
if (clnt) {
clp->cl_callback.cb_client = NULL;
rpc_shutdown_client(clnt);
}
}
static inline void
free_client(struct nfs4_client *clp)
{
shutdown_callback_client(clp);
if (clp->cl_cred.cr_group_info)
put_group_info(clp->cl_cred.cr_group_info);
kfree(clp->cl_name.data);
@ -374,18 +387,6 @@ put_nfs4_client(struct nfs4_client *clp)
free_client(clp);
}
static void
shutdown_callback_client(struct nfs4_client *clp)
{
struct rpc_clnt *clnt = clp->cl_callback.cb_client;
/* shutdown rpc client, ending any outstanding recall rpcs */
if (clnt) {
clp->cl_callback.cb_client = NULL;
rpc_shutdown_client(clnt);
}
}
static void
expire_client(struct nfs4_client *clp)
{
@ -396,8 +397,6 @@ expire_client(struct nfs4_client *clp)
dprintk("NFSD: expire_client cl_count %d\n",
atomic_read(&clp->cl_count));
shutdown_callback_client(clp);
INIT_LIST_HEAD(&reaplist);
spin_lock(&recall_lock);
while (!list_empty(&clp->cl_delegations)) {
@ -462,26 +461,28 @@ copy_cred(struct svc_cred *target, struct svc_cred *source) {
}
static inline int
same_name(const char *n1, const char *n2) {
same_name(const char *n1, const char *n2)
{
return 0 == memcmp(n1, n2, HEXDIR_LEN);
}
static int
cmp_verf(nfs4_verifier *v1, nfs4_verifier *v2) {
return(!memcmp(v1->data,v2->data,sizeof(v1->data)));
same_verf(nfs4_verifier *v1, nfs4_verifier *v2)
{
return 0 == memcmp(v1->data, v2->data, sizeof(v1->data));
}
static int
cmp_clid(clientid_t * cl1, clientid_t * cl2) {
return((cl1->cl_boot == cl2->cl_boot) &&
(cl1->cl_id == cl2->cl_id));
same_clid(clientid_t *cl1, clientid_t *cl2)
{
return (cl1->cl_boot == cl2->cl_boot) && (cl1->cl_id == cl2->cl_id);
}
/* XXX what about NGROUP */
static int
cmp_creds(struct svc_cred *cr1, struct svc_cred *cr2){
return(cr1->cr_uid == cr2->cr_uid);
same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
{
return cr1->cr_uid == cr2->cr_uid;
}
static void
@ -507,7 +508,7 @@ check_name(struct xdr_netobj name) {
if (name.len == 0)
return 0;
if (name.len > NFS4_OPAQUE_LIMIT) {
printk("NFSD: check_name: name too long(%d)!\n", name.len);
dprintk("NFSD: check_name: name too long(%d)!\n", name.len);
return 0;
}
return 1;
@ -546,7 +547,7 @@ find_confirmed_client(clientid_t *clid)
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &conf_id_hashtbl[idhashval], cl_idhash) {
if (cmp_clid(&clp->cl_clientid, clid))
if (same_clid(&clp->cl_clientid, clid))
return clp;
}
return NULL;
@ -559,7 +560,7 @@ find_unconfirmed_client(clientid_t *clid)
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &unconf_id_hashtbl[idhashval], cl_idhash) {
if (cmp_clid(&clp->cl_clientid, clid))
if (same_clid(&clp->cl_clientid, clid))
return clp;
}
return NULL;
@ -753,7 +754,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* or different ip_address
*/
status = nfserr_clid_inuse;
if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)
|| conf->cl_addr != sin->sin_addr.s_addr) {
dprintk("NFSD: setclientid: string in use by client"
"at %u.%u.%u.%u\n", NIPQUAD(conf->cl_addr));
@ -772,14 +773,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
copy_verf(new, &clverifier);
new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
gen_callback(new, setclid);
add_to_unconfirmed(new, strhashval);
} else if (cmp_verf(&conf->cl_verifier, &clverifier)) {
} else if (same_verf(&conf->cl_verifier, &clverifier)) {
/*
* CASE 1:
* cl_name match, confirmed, principal match
@ -804,13 +799,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
copy_verf(new,&conf->cl_verifier);
new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
copy_clid(new, conf);
gen_confirm(new);
gen_callback(new, setclid);
add_to_unconfirmed(new,strhashval);
} else if (!unconf) {
/*
* CASE 2:
@ -823,14 +812,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
copy_verf(new,&clverifier);
new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
gen_callback(new, setclid);
add_to_unconfirmed(new, strhashval);
} else if (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
} else if (!same_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
/*
* CASE3:
* confirmed found (name, principal match)
@ -850,19 +833,19 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
copy_verf(new,&clverifier);
new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
gen_callback(new, setclid);
add_to_unconfirmed(new, strhashval);
} else {
/* No cases hit !!! */
status = nfserr_inval;
goto out;
}
copy_verf(new, &clverifier);
new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred, &rqstp->rq_cred);
gen_confirm(new);
gen_callback(new, setclid);
add_to_unconfirmed(new, strhashval);
setclid->se_clientid.cl_boot = new->cl_clientid.cl_boot;
setclid->se_clientid.cl_id = new->cl_clientid.cl_id;
memcpy(setclid->se_confirm.data, new->cl_confirm.data, sizeof(setclid->se_confirm.data));
@ -910,16 +893,16 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
goto out;
if ((conf && unconf) &&
(cmp_verf(&unconf->cl_confirm, &confirm)) &&
(cmp_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
(same_verf(&unconf->cl_confirm, &confirm)) &&
(same_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
(same_name(conf->cl_recdir,unconf->cl_recdir)) &&
(!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
(!same_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
/* CASE 1:
* unconf record that matches input clientid and input confirm.
* conf record that matches input clientid.
* conf and unconf records match names, verifiers
*/
if (!cmp_creds(&conf->cl_cred, &unconf->cl_cred))
if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
status = nfserr_clid_inuse;
else {
/* XXX: We just turn off callbacks until we can handle
@ -933,7 +916,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
}
} else if ((conf && !unconf) ||
((conf && unconf) &&
(!cmp_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
(!same_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
!same_name(conf->cl_recdir, unconf->cl_recdir)))) {
/* CASE 2:
* conf record that matches input clientid.
@ -941,18 +924,18 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
* unconf->cl_name or unconf->cl_verifier don't match the
* conf record.
*/
if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred))
if (!same_creds(&conf->cl_cred, &rqstp->rq_cred))
status = nfserr_clid_inuse;
else
status = nfs_ok;
} else if (!conf && unconf
&& cmp_verf(&unconf->cl_confirm, &confirm)) {
&& same_verf(&unconf->cl_confirm, &confirm)) {
/* CASE 3:
* conf record not found.
* unconf record found.
* unconf->cl_confirm matches input confirm
*/
if (!cmp_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
status = nfserr_clid_inuse;
} else {
unsigned int hash =
@ -967,8 +950,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
conf = unconf;
status = nfs_ok;
}
} else if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm)))
&& (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm,
} else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm)))
&& (!unconf || (unconf && !same_verf(&unconf->cl_confirm,
&confirm)))) {
/* CASE 4:
* conf record not found, or if conf, conf->cl_confirm does not
@ -1019,7 +1002,7 @@ nfsd4_free_slab(struct kmem_cache **slab)
*slab = NULL;
}
static void
void
nfsd4_free_slabs(void)
{
nfsd4_free_slab(&stateowner_slab);
@ -1207,10 +1190,12 @@ move_to_close_lru(struct nfs4_stateowner *sop)
}
static int
cmp_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner, clientid_t *clid) {
return ((sop->so_owner.len == owner->len) &&
!memcmp(sop->so_owner.data, owner->data, owner->len) &&
(sop->so_client->cl_clientid.cl_id == clid->cl_id));
same_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner,
clientid_t *clid)
{
return (sop->so_owner.len == owner->len) &&
0 == memcmp(sop->so_owner.data, owner->data, owner->len) &&
(sop->so_client->cl_clientid.cl_id == clid->cl_id);
}
static struct nfs4_stateowner *
@ -1219,7 +1204,7 @@ find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
struct nfs4_stateowner *so = NULL;
list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) {
if (cmp_owner_str(so, &open->op_owner, &open->op_clientid))
if (same_owner_str(so, &open->op_owner, &open->op_clientid))
return so;
}
return NULL;
@ -1360,6 +1345,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
* lock) we know the server hasn't removed the lease yet, we know
* it's safe to take a reference: */
atomic_inc(&dp->dl_count);
atomic_inc(&dp->dl_client->cl_count);
spin_lock(&recall_lock);
list_add_tail(&dp->dl_recall_lru, &del_recall_lru);
@ -1368,8 +1354,12 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
/* only place dl_time is set. protected by lock_kernel*/
dp->dl_time = get_seconds();
/* XXX need to merge NFSD_LEASE_TIME with fs/locks.c:lease_break_time */
fl->fl_break_time = jiffies + NFSD_LEASE_TIME * HZ;
/*
* We don't want the locks code to timeout the lease for us;
* we'll remove it ourself if the delegation isn't returned
* in time.
*/
fl->fl_break_time = 0;
t = kthread_run(do_recall, dp, "%s", "nfs4_cb_recall");
if (IS_ERR(t)) {
@ -1378,6 +1368,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
printk(KERN_INFO "NFSD: Callback thread failed for "
"for client (clientid %08x/%08x)\n",
clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
put_nfs4_client(dp->dl_client);
nfs4_put_delegation(dp);
}
}
@ -1738,7 +1729,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
&& flag == NFS4_OPEN_DELEGATE_NONE
&& open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
printk("NFSD: WARNING: refusing delegation reclaim\n");
dprintk("NFSD: WARNING: refusing delegation reclaim\n");
open->op_delegate_type = flag;
}
@ -2147,7 +2138,7 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
*sopp = NULL;
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) {
printk("NFSD: preprocess_seqid_op: magic stateid!\n");
dprintk("NFSD: preprocess_seqid_op: magic stateid!\n");
return nfserr_bad_stateid;
}
@ -2181,25 +2172,24 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
lkflg = setlkflg(lock->lk_type);
if (lock->lk_is_new) {
if (!sop->so_is_open_owner)
if (!sop->so_is_open_owner)
return nfserr_bad_stateid;
if (!same_clid(&clp->cl_clientid, lockclid))
return nfserr_bad_stateid;
if (!cmp_clid(&clp->cl_clientid, lockclid))
return nfserr_bad_stateid;
/* stp is the open stateid */
status = nfs4_check_openmode(stp, lkflg);
if (status)
return status;
} else {
/* stp is the lock stateid */
status = nfs4_check_openmode(stp->st_openstp, lkflg);
if (status)
return status;
/* stp is the open stateid */
status = nfs4_check_openmode(stp, lkflg);
if (status)
return status;
} else {
/* stp is the lock stateid */
status = nfs4_check_openmode(stp->st_openstp, lkflg);
if (status)
return status;
}
}
if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp)) {
printk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
dprintk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
return nfserr_bad_stateid;
}
@ -2215,22 +2205,22 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
goto check_replay;
if (sop->so_confirmed && flags & CONFIRM) {
printk("NFSD: preprocess_seqid_op: expected"
dprintk("NFSD: preprocess_seqid_op: expected"
" unconfirmed stateowner!\n");
return nfserr_bad_stateid;
}
if (!sop->so_confirmed && !(flags & CONFIRM)) {
printk("NFSD: preprocess_seqid_op: stateowner not"
dprintk("NFSD: preprocess_seqid_op: stateowner not"
" confirmed yet!\n");
return nfserr_bad_stateid;
}
if (stateid->si_generation > stp->st_stateid.si_generation) {
printk("NFSD: preprocess_seqid_op: future stateid?!\n");
dprintk("NFSD: preprocess_seqid_op: future stateid?!\n");
return nfserr_bad_stateid;
}
if (stateid->si_generation < stp->st_stateid.si_generation) {
printk("NFSD: preprocess_seqid_op: old stateid!\n");
dprintk("NFSD: preprocess_seqid_op: old stateid!\n");
return nfserr_old_stateid;
}
renew_client(sop->so_client);
@ -2242,7 +2232,7 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
/* indicate replay to calling function */
return nfserr_replay_me;
}
printk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
dprintk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
sop->so_seqid, seqid);
*sopp = NULL;
return nfserr_bad_seqid;
@ -2561,7 +2551,7 @@ find_lockstateowner_str(struct inode *inode, clientid_t *clid,
struct nfs4_stateowner *op;
list_for_each_entry(op, &lock_ownerstr_hashtbl[hashval], so_strhash) {
if (cmp_owner_str(op, owner, clid))
if (same_owner_str(op, owner, clid))
return op;
}
return NULL;
@ -2855,7 +2845,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
file_lock.fl_type = F_WRLCK;
break;
default:
printk("NFSD: nfs4_lockt: bad lock type!\n");
dprintk("NFSD: nfs4_lockt: bad lock type!\n");
status = nfserr_inval;
goto out;
}
@ -3025,7 +3015,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
INIT_LIST_HEAD(&matches);
for (i = 0; i < LOCK_HASH_SIZE; i++) {
list_for_each_entry(sop, &lock_ownerid_hashtbl[i], so_idhash) {
if (!cmp_owner_str(sop, owner, clid))
if (!same_owner_str(sop, owner, clid))
continue;
list_for_each_entry(stp, &sop->so_stateids,
st_perstateowner) {
@ -3149,11 +3139,14 @@ nfs4_check_open_reclaim(clientid_t *clid)
/* initialization to perform at module load time: */
void
int
nfs4_state_init(void)
{
int i;
int i, status;
status = nfsd4_init_slabs();
if (status)
return status;
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
INIT_LIST_HEAD(&conf_id_hashtbl[i]);
INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@ -3182,6 +3175,7 @@ nfs4_state_init(void)
for (i = 0; i < CLIENT_HASH_SIZE; i++)
INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
reclaim_str_hashtbl_size = 0;
return 0;
}
static void
@ -3242,20 +3236,15 @@ __nfs4_state_start(void)
set_max_delegations();
}
int
void
nfs4_state_start(void)
{
int status;
if (nfs4_init)
return 0;
status = nfsd4_init_slabs();
if (status)
return status;
return;
nfsd4_load_reboot_recovery_data();
__nfs4_state_start();
nfs4_init = 1;
return 0;
return;
}
int
@ -3313,7 +3302,6 @@ nfs4_state_shutdown(void)
nfs4_lock_state();
nfs4_release_reclaim();
__nfs4_state_shutdown();
nfsd4_free_slabs();
nfs4_unlock_state();
}

22
fs/nfsd/nfs4xdr.c
View File

@ -1475,7 +1475,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
err = vfs_getattr(exp->ex_mnt, dentry, &stat);
if (err)
goto out_nfserr;
if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL)) ||
if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
FATTR4_WORD0_MAXNAME)) ||
(bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
err = vfs_statfs(dentry, &statfs);
@ -1679,7 +1680,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
if (bmval0 & FATTR4_WORD0_FILEID) {
if ((buflen -= 8) < 0)
goto out_resource;
WRITE64((u64) stat.ino);
WRITE64(stat.ino);
}
if (bmval0 & FATTR4_WORD0_FILES_AVAIL) {
if ((buflen -= 8) < 0)
@ -1721,7 +1722,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
if (bmval0 & FATTR4_WORD0_MAXNAME) {
if ((buflen -= 4) < 0)
goto out_resource;
WRITE32(~(u32) 0);
WRITE32(statfs.f_namelen);
}
if (bmval0 & FATTR4_WORD0_MAXREAD) {
if ((buflen -= 8) < 0)
@ -1821,16 +1822,15 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
WRITE32(stat.mtime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
struct dentry *mnt_pnt, *mnt_root;
if ((buflen -= 8) < 0)
goto out_resource;
mnt_root = exp->ex_mnt->mnt_root;
if (mnt_root->d_inode == dentry->d_inode) {
mnt_pnt = exp->ex_mnt->mnt_mountpoint;
WRITE64((u64) mnt_pnt->d_inode->i_ino);
} else
WRITE64((u64) stat.ino);
if (exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
err = vfs_getattr(exp->ex_mnt->mnt_parent,
exp->ex_mnt->mnt_mountpoint, &stat);
if (err)
goto out_nfserr;
}
WRITE64(stat.ino);
}
*attrlenp = htonl((char *)p - (char *)attrlenp - 4);
*countp = p - buffer;

7
fs/nfsd/nfsctl.c
View File

@ -298,7 +298,7 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
* qword quoting is used, so filehandle will be \x....
*/
char *dname, *path;
int maxsize;
int uninitialized_var(maxsize);
char *mesg = buf;
int len;
struct auth_domain *dom;
@ -679,11 +679,13 @@ static int __init init_nfsd(void)
int retval;
printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n");
retval = nfs4_state_init(); /* nfs4 locking state */
if (retval)
return retval;
nfsd_stat_init(); /* Statistics */
nfsd_cache_init(); /* RPC reply cache */
nfsd_export_init(); /* Exports table */
nfsd_lockd_init(); /* lockd->nfsd callbacks */
nfs4_state_init(); /* NFSv4 locking state */
nfsd_idmap_init(); /* Name to ID mapping */
if (proc_mkdir("fs/nfs", NULL)) {
struct proc_dir_entry *entry;
@ -712,6 +714,7 @@ static void __exit exit_nfsd(void)
nfsd_stat_shutdown();
nfsd_lockd_shutdown();
nfsd_idmap_shutdown();
nfsd4_free_slabs();
unregister_filesystem(&nfsd_fs_type);
}

8
fs/nfsd/nfssvc.c
View File

@ -349,9 +349,7 @@ nfsd_svc(unsigned short port, int nrservs)
error = nfsd_racache_init(2*nrservs);
if (error<0)
goto out;
error = nfs4_state_start();
if (error<0)
goto out;
nfs4_state_start();
nfsd_reset_versions();
@ -546,10 +544,8 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
/* Now call the procedure handler, and encode NFS status. */
nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
nfserr = map_new_errors(rqstp->rq_vers, nfserr);
if (nfserr == nfserr_jukebox && rqstp->rq_vers == 2)
nfserr = nfserr_dropit;
if (nfserr == nfserr_dropit) {
dprintk("nfsd: Dropping request due to malloc failure!\n");
dprintk("nfsd: Dropping request; may be revisited later\n");
nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
return 0;
}

4
fs/nfsd/nfsxdr.c
View File

@ -523,6 +523,10 @@ nfssvc_encode_entry(void *ccdv, const char *name,
cd->common.err = nfserr_toosmall;
return -EINVAL;
}
if (ino > ~((u32) 0)) {
cd->common.err = nfserr_fbig;
return -EINVAL;
}
*p++ = xdr_one; /* mark entry present */
*p++ = htonl((u32) ino); /* file id */
p = xdr_encode_array(p, name, namlen);/* name length & name */

43
fs/nfsd/vfs.c
View File

@ -295,7 +295,8 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
if (!iap->ia_valid)
goto out;
/* NFSv2 does not differentiate between "set-[ac]time-to-now"
/*
* NFSv2 does not differentiate between "set-[ac]time-to-now"
* which only requires access, and "set-[ac]time-to-X" which
* requires ownership.
* So if it looks like it might be "set both to the same time which
@ -308,25 +309,33 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
*/
#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
#define MAX_TOUCH_TIME_ERROR (30*60)
if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET
&& iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec
) {
/* Looks probable. Now just make sure time is in the right ballpark.
* Solaris, at least, doesn't seem to care what the time request is.
* We require it be within 30 minutes of now.
*/
time_t delta = iap->ia_atime.tv_sec - get_seconds();
if (delta<0) delta = -delta;
if (delta < MAX_TOUCH_TIME_ERROR &&
inode_change_ok(inode, iap) != 0) {
/* turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME
* this will cause notify_change to set these times to "now"
if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
/*
* Looks probable.
*
* Now just make sure time is in the right ballpark.
* Solaris, at least, doesn't seem to care what the time
* request is. We require it be within 30 minutes of now.
*/
iap->ia_valid &= ~BOTH_TIME_SET;
}
time_t delta = iap->ia_atime.tv_sec - get_seconds();
if (delta < 0)
delta = -delta;
if (delta < MAX_TOUCH_TIME_ERROR &&
inode_change_ok(inode, iap) != 0) {
/*
* Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
* This will cause notify_change to set these times
* to "now"
*/
iap->ia_valid &= ~BOTH_TIME_SET;
}
}
/* The size case is special. It changes the file as well as the attributes. */
/*
* The size case is special.
* It changes the file as well as the attributes.
*/
if (iap->ia_valid & ATTR_SIZE) {
if (iap->ia_size < inode->i_size) {
err = nfsd_permission(rqstp, fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE);

18
include/linux/nfsd/nfsd.h
View File

@ -153,19 +153,21 @@ extern int nfsd_max_blksize;
*/
#ifdef CONFIG_NFSD_V4
extern unsigned int max_delegations;
void nfs4_state_init(void);
int nfs4_state_start(void);
int nfs4_state_init(void);
void nfsd4_free_slabs(void);
void nfs4_state_start(void);
void nfs4_state_shutdown(void);
time_t nfs4_lease_time(void);
void nfs4_reset_lease(time_t leasetime);
int nfs4_reset_recoverydir(char *recdir);
#else
static inline void nfs4_state_init(void){};
static inline int nfs4_state_start(void){return 0;}
static inline void nfs4_state_shutdown(void){}
static inline time_t nfs4_lease_time(void){return 0;}
static inline void nfs4_reset_lease(time_t leasetime){}
static inline int nfs4_reset_recoverydir(char *recdir) {return 0;}
static inline int nfs4_state_init(void) { return 0; }
static inline void nfsd4_free_slabs(void) { }
static inline void nfs4_state_start(void) { }
static inline void nfs4_state_shutdown(void) { }
static inline time_t nfs4_lease_time(void) { return 0; }
static inline void nfs4_reset_lease(time_t leasetime) { }
static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
#endif
/*

42
include/linux/nfsd/nfsfh.h
View File

@ -150,17 +150,7 @@ typedef struct svc_fh {
struct timespec fh_pre_ctime; /* ctime before oper */
/* Post-op attributes saved in fh_unlock */
umode_t fh_post_mode; /* i_mode */
nlink_t fh_post_nlink; /* i_nlink */
uid_t fh_post_uid; /* i_uid */
gid_t fh_post_gid; /* i_gid */
__u64 fh_post_size; /* i_size */
unsigned long fh_post_blocks; /* i_blocks */
unsigned long fh_post_blksize;/* i_blksize */
__be32 fh_post_rdev[2];/* i_rdev */
struct timespec fh_post_atime; /* i_atime */
struct timespec fh_post_mtime; /* i_mtime */
struct timespec fh_post_ctime; /* i_ctime */
struct kstat fh_post_attr; /* full attrs after operation */
#endif /* CONFIG_NFSD_V3 */
} svc_fh;
@ -297,36 +287,12 @@ fill_pre_wcc(struct svc_fh *fhp)
if (!fhp->fh_pre_saved) {
fhp->fh_pre_mtime = inode->i_mtime;
fhp->fh_pre_ctime = inode->i_ctime;
fhp->fh_pre_size = inode->i_size;
fhp->fh_pre_saved = 1;
fhp->fh_pre_size = inode->i_size;
fhp->fh_pre_saved = 1;
}
}
/*
* Fill in the post_op attr for the wcc data
*/
static inline void
fill_post_wcc(struct svc_fh *fhp)
{
struct inode *inode = fhp->fh_dentry->d_inode;
if (fhp->fh_post_saved)
printk("nfsd: inode locked twice during operation.\n");
fhp->fh_post_mode = inode->i_mode;
fhp->fh_post_nlink = inode->i_nlink;
fhp->fh_post_uid = inode->i_uid;
fhp->fh_post_gid = inode->i_gid;
fhp->fh_post_size = inode->i_size;
fhp->fh_post_blksize = BLOCK_SIZE;
fhp->fh_post_blocks = inode->i_blocks;
fhp->fh_post_rdev[0] = htonl((u32)imajor(inode));
fhp->fh_post_rdev[1] = htonl((u32)iminor(inode));
fhp->fh_post_atime = inode->i_atime;
fhp->fh_post_mtime = inode->i_mtime;
fhp->fh_post_ctime = inode->i_ctime;
fhp->fh_post_saved = 1;
}
extern void fill_post_wcc(struct svc_fh *);
#else
#define fill_pre_wcc(ignored)
#define fill_post_wcc(notused)

4
include/linux/nfsd/xdr4.h
View File

@ -428,8 +428,8 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
cinfo->atomic = 1;
cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
cinfo->after_ctime_sec = fhp->fh_post_ctime.tv_sec;
cinfo->after_ctime_nsec = fhp->fh_post_ctime.tv_nsec;
cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
}
int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);

10
include/linux/sunrpc/cache.h
View File

@ -136,16 +136,6 @@ sunrpc_cache_update(struct cache_detail *detail,
struct cache_head *new, struct cache_head *old, int hash);
#define cache_for_each(pos, detail, index, member) \
for (({read_lock(&(detail)->hash_lock); index = (detail)->hash_size;}) ; \
({if (index==0)read_unlock(&(detail)->hash_lock); index--;}); \
) \
for (pos = container_of((detail)->hash_table[index], typeof(*pos), member); \
&pos->member; \
pos = container_of(pos->member.next, typeof(*pos), member))
extern void cache_clean_deferred(void *owner);
static inline struct cache_head *cache_get(struct cache_head *h)

144
net/sunrpc/auth_gss/svcauth_gss.c
View File

@ -631,7 +631,8 @@ svc_safe_putnetobj(struct kvec *resv, struct xdr_netobj *o)
return 0;
}
/* Verify the checksum on the header and return SVC_OK on success.
/*
* Verify the checksum on the header and return SVC_OK on success.
* Otherwise, return SVC_DROP (in the case of a bad sequence number)
* or return SVC_DENIED and indicate error in authp.
*/
@ -960,6 +961,78 @@ gss_write_init_verf(struct svc_rqst *rqstp, struct rsi *rsip)
return rc;
}
/*
* Having read the cred already and found we're in the context
* initiation case, read the verifier and initiate (or check the results
* of) upcalls to userspace for help with context initiation. If
* the upcall results are available, write the verifier and result.
* Otherwise, drop the request pending an answer to the upcall.
*/
static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
struct rpc_gss_wire_cred *gc, __be32 *authp)
{
struct kvec *argv = &rqstp->rq_arg.head[0];
struct kvec *resv = &rqstp->rq_res.head[0];
struct xdr_netobj tmpobj;
struct rsi *rsip, rsikey;
/* Read the verifier; should be NULL: */
*authp = rpc_autherr_badverf;
if (argv->iov_len < 2 * 4)
return SVC_DENIED;
if (svc_getnl(argv) != RPC_AUTH_NULL)
return SVC_DENIED;
if (svc_getnl(argv) != 0)
return SVC_DENIED;
/* Martial context handle and token for upcall: */
*authp = rpc_autherr_badcred;
if (gc->gc_proc == RPC_GSS_PROC_INIT && gc->gc_ctx.len != 0)
return SVC_DENIED;
memset(&rsikey, 0, sizeof(rsikey));
if (dup_netobj(&rsikey.in_handle, &gc->gc_ctx))
return SVC_DROP;
*authp = rpc_autherr_badverf;
if (svc_safe_getnetobj(argv, &tmpobj)) {
kfree(rsikey.in_handle.data);
return SVC_DENIED;
}
if (dup_netobj(&rsikey.in_token, &tmpobj)) {
kfree(rsikey.in_handle.data);
return SVC_DROP;
}
/* Perform upcall, or find upcall result: */
rsip = rsi_lookup(&rsikey);
rsi_free(&rsikey);
if (!rsip)
return SVC_DROP;
switch (cache_check(&rsi_cache, &rsip->h, &rqstp->rq_chandle)) {
case -EAGAIN:
case -ETIMEDOUT:
case -ENOENT:
/* No upcall result: */
return SVC_DROP;
case 0:
/* Got an answer to the upcall; use it: */
if (gss_write_init_verf(rqstp, rsip))
return SVC_DROP;
if (resv->iov_len + 4 > PAGE_SIZE)
return SVC_DROP;
svc_putnl(resv, RPC_SUCCESS);
if (svc_safe_putnetobj(resv, &rsip->out_handle))
return SVC_DROP;
if (resv->iov_len + 3 * 4 > PAGE_SIZE)
return SVC_DROP;
svc_putnl(resv, rsip->major_status);
svc_putnl(resv, rsip->minor_status);
svc_putnl(resv, GSS_SEQ_WIN);
if (svc_safe_putnetobj(resv, &rsip->out_token))
return SVC_DROP;
}
return SVC_COMPLETE;
}
/*
* Accept an rpcsec packet.
* If context establishment, punt to user space
@ -974,11 +1047,9 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
struct kvec *argv = &rqstp->rq_arg.head[0];
struct kvec *resv = &rqstp->rq_res.head[0];
u32 crlen;
struct xdr_netobj tmpobj;
struct gss_svc_data *svcdata = rqstp->rq_auth_data;
struct rpc_gss_wire_cred *gc;
struct rsc *rsci = NULL;
struct rsi *rsip, rsikey;
__be32 *rpcstart;
__be32 *reject_stat = resv->iov_base + resv->iov_len;
int ret;
@ -1023,30 +1094,14 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
if ((gc->gc_proc != RPC_GSS_PROC_DATA) && (rqstp->rq_proc != 0))
goto auth_err;
/*
* We've successfully parsed the credential. Let's check out the
* verifier. An AUTH_NULL verifier is allowed (and required) for
* INIT and CONTINUE_INIT requests. AUTH_RPCSEC_GSS is required for
* PROC_DATA and PROC_DESTROY.
*
* AUTH_NULL verifier is 0 (AUTH_NULL), 0 (length).
* AUTH_RPCSEC_GSS verifier is:
* 6 (AUTH_RPCSEC_GSS), length, checksum.
* checksum is calculated over rpcheader from xid up to here.
*/
*authp = rpc_autherr_badverf;
switch (gc->gc_proc) {
case RPC_GSS_PROC_INIT:
case RPC_GSS_PROC_CONTINUE_INIT:
if (argv->iov_len < 2 * 4)
goto auth_err;
if (svc_getnl(argv) != RPC_AUTH_NULL)
goto auth_err;
if (svc_getnl(argv) != 0)
goto auth_err;
break;
return svcauth_gss_handle_init(rqstp, gc, authp);
case RPC_GSS_PROC_DATA:
case RPC_GSS_PROC_DESTROY:
/* Look up the context, and check the verifier: */
*authp = rpcsec_gsserr_credproblem;
rsci = gss_svc_searchbyctx(&gc->gc_ctx);
if (!rsci)
@ -1067,51 +1122,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
/* now act upon the command: */
switch (gc->gc_proc) {
case RPC_GSS_PROC_INIT:
case RPC_GSS_PROC_CONTINUE_INIT:
*authp = rpc_autherr_badcred;
if (gc->gc_proc == RPC_GSS_PROC_INIT && gc->gc_ctx.len != 0)
goto auth_err;
memset(&rsikey, 0, sizeof(rsikey));
if (dup_netobj(&rsikey.in_handle, &gc->gc_ctx))
goto drop;
*authp = rpc_autherr_badverf;
if (svc_safe_getnetobj(argv, &tmpobj)) {
kfree(rsikey.in_handle.data);
goto auth_err;
}
if (dup_netobj(&rsikey.in_token, &tmpobj)) {
kfree(rsikey.in_handle.data);
goto drop;
}
rsip = rsi_lookup(&rsikey);
rsi_free(&rsikey);
if (!rsip) {
goto drop;
}
switch(cache_check(&rsi_cache, &rsip->h, &rqstp->rq_chandle)) {
case -EAGAIN:
case -ETIMEDOUT:
case -ENOENT:
goto drop;
case 0:
if (gss_write_init_verf(rqstp, rsip))
goto drop;
if (resv->iov_len + 4 > PAGE_SIZE)
goto drop;
svc_putnl(resv, RPC_SUCCESS);
if (svc_safe_putnetobj(resv, &rsip->out_handle))
goto drop;
if (resv->iov_len + 3 * 4 > PAGE_SIZE)
goto drop;
svc_putnl(resv, rsip->major_status);
svc_putnl(resv, rsip->minor_status);
svc_putnl(resv, GSS_SEQ_WIN);
if (svc_safe_putnetobj(resv, &rsip->out_token))
goto drop;
}
goto complete;
case RPC_GSS_PROC_DESTROY:
if (gss_write_verf(rqstp, rsci->mechctx, gc->gc_seq))
goto auth_err;
@ -1158,7 +1168,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
goto out;
}
auth_err:
/* Restore write pointer to original value: */
/* Restore write pointer to its original value: */
xdr_ressize_check(rqstp, reject_stat);
ret = SVC_DENIED;
goto out;

40
net/sunrpc/svc.c
View File

@ -776,6 +776,30 @@ svc_register(struct svc_serv *serv, int proto, unsigned short port)
return error;
}
/*
* Printk the given error with the address of the client that caused it.
*/
static int
__attribute__ ((format (printf, 2, 3)))
svc_printk(struct svc_rqst *rqstp, const char *fmt, ...)
{
va_list args;
int r;
char buf[RPC_MAX_ADDRBUFLEN];
if (!net_ratelimit())
return 0;
printk(KERN_WARNING "svc: %s: ",
svc_print_addr(rqstp, buf, sizeof(buf)));
va_start(args, fmt);
r = vprintk(fmt, args);
va_end(args);
return r;
}
/*
* Process the RPC request.
*/
@ -963,14 +987,13 @@ svc_process(struct svc_rqst *rqstp)
return 0;
err_short_len:
if (net_ratelimit())
printk("svc: short len %Zd, dropping request\n", argv->iov_len);
svc_printk(rqstp, "short len %Zd, dropping request\n",
argv->iov_len);
goto dropit; /* drop request */
err_bad_dir:
if (net_ratelimit())
printk("svc: bad direction %d, dropping request\n", dir);
svc_printk(rqstp, "bad direction %d, dropping request\n", dir);
serv->sv_stats->rpcbadfmt++;
goto dropit; /* drop request */
@ -1000,8 +1023,7 @@ svc_process(struct svc_rqst *rqstp)
goto sendit;
err_bad_vers:
if (net_ratelimit())
printk("svc: unknown version (%d for prog %d, %s)\n",
svc_printk(rqstp, "unknown version (%d for prog %d, %s)\n",
vers, prog, progp->pg_name);
serv->sv_stats->rpcbadfmt++;
@ -1011,16 +1033,14 @@ svc_process(struct svc_rqst *rqstp)
goto sendit;
err_bad_proc:
if (net_ratelimit())
printk("svc: unknown procedure (%d)\n", proc);
svc_printk(rqstp, "unknown procedure (%d)\n", proc);
serv->sv_stats->rpcbadfmt++;
svc_putnl(resv, RPC_PROC_UNAVAIL);
goto sendit;
err_garbage:
if (net_ratelimit())
printk("svc: failed to decode args\n");
svc_printk(rqstp, "failed to decode args\n");
rpc_stat = rpc_garbage_args;
err_bad: