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-rw-r--r--fs/Kconfig2
-rw-r--r--fs/lockd/host.c26
-rw-r--r--fs/lockd/svc.c39
-rw-r--r--fs/lockd/svc4proc.c20
-rw-r--r--fs/lockd/svclock.c20
-rw-r--r--fs/lockd/svcproc.c22
-rw-r--r--fs/lockd/svcsubs.c2
-rw-r--r--fs/nfs/callback.c4
-rw-r--r--fs/nfsd/auth.h22
-rw-r--r--fs/nfsd/export.c20
-rw-r--r--fs/nfsd/nfs2acl.c7
-rw-r--r--fs/nfsd/nfs3xdr.c21
-rw-r--r--fs/nfsd/nfs4callback.c92
-rw-r--r--fs/nfsd/nfs4idmap.c28
-rw-r--r--fs/nfsd/nfs4proc.c2
-rw-r--r--fs/nfsd/nfs4state.c257
-rw-r--r--fs/nfsd/nfs4xdr.c36
-rw-r--r--fs/nfsd/nfscache.c28
-rw-r--r--fs/nfsd/nfsctl.c124
-rw-r--r--fs/nfsd/nfsfh.c1
-rw-r--r--fs/nfsd/nfssvc.c8
-rw-r--r--fs/nfsd/nfsxdr.c9
-rw-r--r--fs/nfsd/vfs.c51
23 files changed, 466 insertions, 375 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index 219ec06..987b5d7 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1674,6 +1674,8 @@ config NFSD
select CRYPTO_MD5 if NFSD_V4
select CRYPTO if NFSD_V4
select FS_POSIX_ACL if NFSD_V4
+ select PROC_FS if NFSD_V4
+ select PROC_FS if SUNRPC_GSS
help
If you want your Linux box to act as an NFS *server*, so that other
computers on your local network which support NFS can access certain
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 572601e9..ca6b16f 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -34,10 +34,10 @@ static DEFINE_MUTEX(nlm_host_mutex);
static void nlm_gc_hosts(void);
static struct nsm_handle * __nsm_find(const struct sockaddr_in *,
- const char *, int, int);
+ const char *, unsigned int, int);
static struct nsm_handle * nsm_find(const struct sockaddr_in *sin,
const char *hostname,
- int hostname_len);
+ unsigned int hostname_len);
/*
* Common host lookup routine for server & client
@@ -45,7 +45,8 @@ static struct nsm_handle * nsm_find(const struct sockaddr_in *sin,
static struct nlm_host *
nlm_lookup_host(int server, const struct sockaddr_in *sin,
int proto, int version, const char *hostname,
- int hostname_len, const struct sockaddr_in *ssin)
+ unsigned int hostname_len,
+ const struct sockaddr_in *ssin)
{
struct hlist_head *chain;
struct hlist_node *pos;
@@ -176,7 +177,7 @@ nlm_destroy_host(struct nlm_host *host)
*/
struct nlm_host *
nlmclnt_lookup_host(const struct sockaddr_in *sin, int proto, int version,
- const char *hostname, int hostname_len)
+ const char *hostname, unsigned int hostname_len)
{
struct sockaddr_in ssin = {0};
@@ -189,7 +190,7 @@ nlmclnt_lookup_host(const struct sockaddr_in *sin, int proto, int version,
*/
struct nlm_host *
nlmsvc_lookup_host(struct svc_rqst *rqstp,
- const char *hostname, int hostname_len)
+ const char *hostname, unsigned int hostname_len)
{
struct sockaddr_in ssin = {0};
@@ -307,7 +308,8 @@ void nlm_release_host(struct nlm_host *host)
* Release all resources held by that peer.
*/
void nlm_host_rebooted(const struct sockaddr_in *sin,
- const char *hostname, int hostname_len,
+ const char *hostname,
+ unsigned int hostname_len,
u32 new_state)
{
struct hlist_head *chain;
@@ -377,8 +379,13 @@ nlm_shutdown_hosts(void)
/* First, make all hosts eligible for gc */
dprintk("lockd: nuking all hosts...\n");
for (chain = nlm_hosts; chain < nlm_hosts + NLM_HOST_NRHASH; ++chain) {
- hlist_for_each_entry(host, pos, chain, h_hash)
+ hlist_for_each_entry(host, pos, chain, h_hash) {
host->h_expires = jiffies - 1;
+ if (host->h_rpcclnt) {
+ rpc_shutdown_client(host->h_rpcclnt);
+ host->h_rpcclnt = NULL;
+ }
+ }
}
/* Then, perform a garbage collection pass */
@@ -449,7 +456,7 @@ static DEFINE_MUTEX(nsm_mutex);
static struct nsm_handle *
__nsm_find(const struct sockaddr_in *sin,
- const char *hostname, int hostname_len,
+ const char *hostname, unsigned int hostname_len,
int create)
{
struct nsm_handle *nsm = NULL;
@@ -503,7 +510,8 @@ out:
}
static struct nsm_handle *
-nsm_find(const struct sockaddr_in *sin, const char *hostname, int hostname_len)
+nsm_find(const struct sockaddr_in *sin, const char *hostname,
+ unsigned int hostname_len)
{
return __nsm_find(sin, hostname, hostname_len, 1);
}
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 82e2192..0822646 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -219,19 +219,6 @@ lockd(struct svc_rqst *rqstp)
module_put_and_exit(0);
}
-
-static int find_socket(struct svc_serv *serv, int proto)
-{
- struct svc_sock *svsk;
- int found = 0;
- list_for_each_entry(svsk, &serv->sv_permsocks, sk_list)
- if (svsk->sk_sk->sk_protocol == proto) {
- found = 1;
- break;
- }
- return found;
-}
-
/*
* Make any sockets that are needed but not present.
* If nlm_udpport or nlm_tcpport were set as module
@@ -240,17 +227,25 @@ static int find_socket(struct svc_serv *serv, int proto)
static int make_socks(struct svc_serv *serv, int proto)
{
static int warned;
+ struct svc_xprt *xprt;
int err = 0;
- if (proto == IPPROTO_UDP || nlm_udpport)
- if (!find_socket(serv, IPPROTO_UDP))
- err = svc_makesock(serv, IPPROTO_UDP, nlm_udpport,
- SVC_SOCK_DEFAULTS);
- if (err >= 0 && (proto == IPPROTO_TCP || nlm_tcpport))
- if (!find_socket(serv, IPPROTO_TCP))
- err = svc_makesock(serv, IPPROTO_TCP, nlm_tcpport,
- SVC_SOCK_DEFAULTS);
-
+ if (proto == IPPROTO_UDP || nlm_udpport) {
+ xprt = svc_find_xprt(serv, "udp", 0, 0);
+ if (!xprt)
+ err = svc_create_xprt(serv, "udp", nlm_udpport,
+ SVC_SOCK_DEFAULTS);
+ else
+ svc_xprt_put(xprt);
+ }
+ if (err >= 0 && (proto == IPPROTO_TCP || nlm_tcpport)) {
+ xprt = svc_find_xprt(serv, "tcp", 0, 0);
+ if (!xprt)
+ err = svc_create_xprt(serv, "tcp", nlm_tcpport,
+ SVC_SOCK_DEFAULTS);
+ else
+ svc_xprt_put(xprt);
+ }
if (err >= 0) {
warned = 0;
err = 0;
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index bf27b6c..385437e 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -84,6 +84,7 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
+ int rc = rpc_success;
dprintk("lockd: TEST4 called\n");
resp->cookie = argp->cookie;
@@ -91,7 +92,7 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Don't accept test requests during grace period */
if (nlmsvc_grace_period) {
resp->status = nlm_lck_denied_grace_period;
- return rpc_success;
+ return rc;
}
/* Obtain client and file */
@@ -101,12 +102,13 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Now check for conflicting locks */
resp->status = nlmsvc_testlock(rqstp, file, &argp->lock, &resp->lock, &resp->cookie);
if (resp->status == nlm_drop_reply)
- return rpc_drop_reply;
+ rc = rpc_drop_reply;
+ else
+ dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
- dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlm_release_file(file);
- return rpc_success;
+ return rc;
}
static __be32
@@ -115,6 +117,7 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
+ int rc = rpc_success;
dprintk("lockd: LOCK called\n");
@@ -123,7 +126,7 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Don't accept new lock requests during grace period */
if (nlmsvc_grace_period && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
- return rpc_success;
+ return rc;
}
/* Obtain client and file */
@@ -146,12 +149,13 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = nlmsvc_lock(rqstp, file, &argp->lock,
argp->block, &argp->cookie);
if (resp->status == nlm_drop_reply)
- return rpc_drop_reply;
+ rc = rpc_drop_reply;
+ else
+ dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
- dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlm_release_file(file);
- return rpc_success;
+ return rc;
}
static __be32
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index d120ec3..2f4d8fa 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -501,25 +501,29 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
block, block->b_flags, block->b_fl);
if (block->b_flags & B_TIMED_OUT) {
nlmsvc_unlink_block(block);
- return nlm_lck_denied;
+ ret = nlm_lck_denied;
+ goto out;
}
if (block->b_flags & B_GOT_CALLBACK) {
+ nlmsvc_unlink_block(block);
if (block->b_fl != NULL
&& block->b_fl->fl_type != F_UNLCK) {
lock->fl = *block->b_fl;
goto conf_lock;
- }
- else {
- nlmsvc_unlink_block(block);
- return nlm_granted;
+ } else {
+ ret = nlm_granted;
+ goto out;
}
}
- return nlm_drop_reply;
+ ret = nlm_drop_reply;
+ goto out;
}
error = vfs_test_lock(file->f_file, &lock->fl);
- if (error == -EINPROGRESS)
- return nlmsvc_defer_lock_rqst(rqstp, block);
+ if (error == -EINPROGRESS) {
+ ret = nlmsvc_defer_lock_rqst(rqstp, block);
+ goto out;
+ }
if (error) {
ret = nlm_lck_denied_nolocks;
goto out;
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 9cd5c8b..88379cc 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -113,6 +113,7 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
+ int rc = rpc_success;
dprintk("lockd: TEST called\n");
resp->cookie = argp->cookie;
@@ -120,7 +121,7 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Don't accept test requests during grace period */
if (nlmsvc_grace_period) {
resp->status = nlm_lck_denied_grace_period;
- return rpc_success;
+ return rc;
}
/* Obtain client and file */
@@ -130,13 +131,14 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Now check for conflicting locks */
resp->status = cast_status(nlmsvc_testlock(rqstp, file, &argp->lock, &resp->lock, &resp->cookie));
if (resp->status == nlm_drop_reply)
- return rpc_drop_reply;
+ rc = rpc_drop_reply;
+ else
+ dprintk("lockd: TEST status %d vers %d\n",
+ ntohl(resp->status), rqstp->rq_vers);
- dprintk("lockd: TEST status %d vers %d\n",
- ntohl(resp->status), rqstp->rq_vers);
nlm_release_host(host);
nlm_release_file(file);
- return rpc_success;
+ return rc;
}
static __be32
@@ -145,6 +147,7 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
+ int rc = rpc_success;
dprintk("lockd: LOCK called\n");
@@ -153,7 +156,7 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Don't accept new lock requests during grace period */
if (nlmsvc_grace_period && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
- return rpc_success;
+ return rc;
}
/* Obtain client and file */
@@ -176,12 +179,13 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->status = cast_status(nlmsvc_lock(rqstp, file, &argp->lock,
argp->block, &argp->cookie));
if (resp->status == nlm_drop_reply)
- return rpc_drop_reply;
+ rc = rpc_drop_reply;
+ else
+ dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
- dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
nlm_release_host(host);
nlm_release_file(file);
- return rpc_success;
+ return rc;
}
static __be32
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 84ebba3..dbbefbc 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -87,7 +87,7 @@ nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
unsigned int hash;
__be32 nfserr;
- nlm_debug_print_fh("nlm_file_lookup", f);
+ nlm_debug_print_fh("nlm_lookup_file", f);
hash = file_hash(f);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 9b6bbf1..bd185a5 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -119,8 +119,8 @@ int nfs_callback_up(void)
if (!serv)
goto out_err;
- ret = svc_makesock(serv, IPPROTO_TCP, nfs_callback_set_tcpport,
- SVC_SOCK_ANONYMOUS);
+ ret = svc_create_xprt(serv, "tcp", nfs_callback_set_tcpport,
+ SVC_SOCK_ANONYMOUS);
if (ret <= 0)
goto out_destroy;
nfs_callback_tcpport = ret;
diff --git a/fs/nfsd/auth.h b/fs/nfsd/auth.h
new file mode 100644
index 0000000..78b3c0e
--- /dev/null
+++ b/fs/nfsd/auth.h
@@ -0,0 +1,22 @@
+/*
+ * nfsd-specific authentication stuff.
+ * uid/gid mapping not yet implemented.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef LINUX_NFSD_AUTH_H
+#define LINUX_NFSD_AUTH_H
+
+#define nfsd_luid(rq, uid) ((u32)(uid))
+#define nfsd_lgid(rq, gid) ((u32)(gid))
+#define nfsd_ruid(rq, uid) ((u32)(uid))
+#define nfsd_rgid(rq, gid) ((u32)(gid))
+
+/*
+ * Set the current process's fsuid/fsgid etc to those of the NFS
+ * client user
+ */
+int nfsd_setuser(struct svc_rqst *, struct svc_export *);
+
+#endif /* LINUX_NFSD_AUTH_H */
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 66d0aeb..79b4bf8 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1357,8 +1357,6 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp)
mk_fsid(FSID_NUM, fsidv, 0, 0, 0, NULL);
exp = rqst_exp_find(rqstp, FSID_NUM, fsidv);
- if (PTR_ERR(exp) == -ENOENT)
- return nfserr_perm;
if (IS_ERR(exp))
return nfserrno(PTR_ERR(exp));
rv = fh_compose(fhp, exp, exp->ex_dentry, NULL);
@@ -1637,13 +1635,19 @@ exp_verify_string(char *cp, int max)
/*
* Initialize the exports module.
*/
-void
+int
nfsd_export_init(void)
{
+ int rv;
dprintk("nfsd: initializing export module.\n");
- cache_register(&svc_export_cache);
- cache_register(&svc_expkey_cache);
+ rv = cache_register(&svc_export_cache);
+ if (rv)
+ return rv;
+ rv = cache_register(&svc_expkey_cache);
+ if (rv)
+ cache_unregister(&svc_export_cache);
+ return rv;
}
@@ -1670,10 +1674,8 @@ nfsd_export_shutdown(void)
exp_writelock();
- if (cache_unregister(&svc_expkey_cache))
- printk(KERN_ERR "nfsd: failed to unregister expkey cache\n");
- if (cache_unregister(&svc_export_cache))
- printk(KERN_ERR "nfsd: failed to unregister export cache\n");
+ cache_unregister(&svc_expkey_cache);
+ cache_unregister(&svc_export_cache);
svcauth_unix_purge();
exp_writeunlock();
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 0e5fa11..1c3b765 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -221,12 +221,17 @@ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_getaclres *resp)
{
struct dentry *dentry = resp->fh.fh_dentry;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode;
struct kvec *head = rqstp->rq_res.head;
unsigned int base;
int n;
int w;
+ /*
+ * Since this is version 2, the check for nfserr in
+ * nfsd_dispatch actually ensures the following cannot happen.
+ * However, it seems fragile to depend on that.
+ */
if (dentry == NULL || dentry->d_inode == NULL)
return 0;
inode = dentry->d_inode;
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index f917fd2..d7647f7 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -21,6 +21,7 @@
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/xdr3.h>
+#include "auth.h"
#define NFSDDBG_FACILITY NFSDDBG_XDR
@@ -88,10 +89,10 @@ encode_fh(__be32 *p, struct svc_fh *fhp)
* no slashes or null bytes.
*/
static __be32 *
-decode_filename(__be32 *p, char **namp, int *lenp)
+decode_filename(__be32 *p, char **namp, unsigned int *lenp)
{
char *name;
- int i;
+ unsigned int i;
if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS3_MAXNAMLEN)) != NULL) {
for (i = 0, name = *namp; i < *lenp; i++, name++) {
@@ -452,8 +453,7 @@ int
nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_symlinkargs *args)
{
- unsigned int len;
- int avail;
+ unsigned int len, avail;
char *old, *new;
struct kvec *vec;
@@ -486,7 +486,8 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
/* now copy next page if there is one */
if (len && !avail && rqstp->rq_arg.page_len) {
avail = rqstp->rq_arg.page_len;
- if (avail > PAGE_SIZE) avail = PAGE_SIZE;
+ if (avail > PAGE_SIZE)
+ avail = PAGE_SIZE;
old = page_address(rqstp->rq_arg.pages[0]);
}
while (len && avail && *old) {
@@ -816,11 +817,11 @@ static __be32 *
encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p,
struct svc_fh *fhp)
{
- p = encode_post_op_attr(cd->rqstp, p, fhp);
- *p++ = xdr_one; /* yes, a file handle follows */
- p = encode_fh(p, fhp);
- fh_put(fhp);
- return p;
+ p = encode_post_op_attr(cd->rqstp, p, fhp);
+ *p++ = xdr_one; /* yes, a file handle follows */
+ p = encode_fh(p, fhp);
+ fh_put(fhp);
+ return p;
}
static int
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 9d536a8..aae2b29 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -350,30 +350,6 @@ static struct rpc_version * nfs_cb_version[] = {
static int do_probe_callback(void *data)
{
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;
-
- status = rpc_call_sync(cb->cb_client, &msg, RPC_TASK_SOFT);
-
- 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;
-}
-
-/*
- * Set up the callback client and put a NFSPROC4_CB_NULL on the wire...
- */
-void
-nfsd4_probe_callback(struct nfs4_client *clp)
-{
struct sockaddr_in addr;
struct nfs4_callback *cb = &clp->cl_callback;
struct rpc_timeout timeparms = {
@@ -390,13 +366,15 @@ nfsd4_probe_callback(struct nfs4_client *clp)
.timeout = &timeparms,
.program = program,
.version = nfs_cb_version[1]->number,
- .authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
+ .authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
.flags = (RPC_CLNT_CREATE_NOPING),
};
- struct task_struct *t;
-
- if (atomic_read(&cb->cb_set))
- return;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
+ .rpc_argp = clp,
+ };
+ struct rpc_clnt *client;
+ int status;
/* Initialize address */
memset(&addr, 0, sizeof(addr));
@@ -416,29 +394,50 @@ nfsd4_probe_callback(struct nfs4_client *clp)
program->stats->program = program;
/* Create RPC client */
- cb->cb_client = rpc_create(&args);
- if (IS_ERR(cb->cb_client)) {
+ client = rpc_create(&args);
+ if (IS_ERR(client)) {
dprintk("NFSD: couldn't create callback client\n");
+ status = PTR_ERR(client);
goto out_err;
}
+ status = rpc_call_sync(client, &msg, RPC_TASK_SOFT);
+
+ if (status)
+ goto out_release_client;
+
+ cb->cb_client = client;
+ atomic_set(&cb->cb_set, 1);
+ put_nfs4_client(clp);
+ return 0;
+out_release_client:
+ rpc_shutdown_client(client);
+out_err:
+ put_nfs4_client(clp);
+ dprintk("NFSD: warning: no callback path to client %.*s\n",
+ (int)clp->cl_name.len, clp->cl_name.data);
+ return status;
+}
+
+/*
+ * Set up the callback client and put a NFSPROC4_CB_NULL on the wire...
+ */
+void
+nfsd4_probe_callback(struct nfs4_client *clp)
+{
+ struct task_struct *t;
+
+ BUG_ON(atomic_read(&clp->cl_callback.cb_set));
+
/* the task holds a reference to the nfs4_client struct */
atomic_inc(&clp->cl_count);
t = kthread_run(do_probe_callback, clp, "nfs4_cb_probe");
if (IS_ERR(t))
- goto out_release_clp;
+ atomic_dec(&clp->cl_count);
return;
-
-out_release_clp:
- atomic_dec(&clp->cl_count);
- rpc_shutdown_client(cb->cb_client);
-out_err:
- cb->cb_client = NULL;
- dprintk("NFSD: warning: no callback path to client %.*s\n",
- (int)clp->cl_name.len, clp->cl_name.data);
}
/*
@@ -458,9 +457,6 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
int retries = 1;
int status = 0;
- if ((!atomic_read(&clp->cl_callback.cb_set)) || !clnt)
- return;
-
cbr->cbr_trunc = 0; /* XXX need to implement truncate optimization */
cbr->cbr_dp = dp;
@@ -469,6 +465,7 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
switch (status) {
case -EIO:
/* Network partition? */
+ atomic_set(&clp->cl_callback.cb_set, 0);
case -EBADHANDLE:
case -NFS4ERR_BAD_STATEID:
/* Race: client probably got cb_recall
@@ -481,11 +478,10 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFT);
}
out_put_cred:
- 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));
+ /*
+ * Success or failure, now we're either waiting for lease expiration
+ * or deleg_return.
+ */
put_nfs4_client(clp);
nfs4_put_delegation(dp);
return;
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 4c0c683..996bd88 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -255,13 +255,10 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
goto out;
if (len == 0)
set_bit(CACHE_NEGATIVE, &ent.h.flags);
- else {
- if (error >= IDMAP_NAMESZ) {
- error = -EINVAL;
- goto out;
- }
+ else if (len >= IDMAP_NAMESZ)
+ goto out;
+ else
memcpy(ent.name, buf1, sizeof(ent.name));
- }
error = -ENOMEM;
res = idtoname_update(&ent, res);
if (res == NULL)
@@ -467,20 +464,25 @@ nametoid_update(struct ent *new, struct ent *old)
* Exported API
*/
-void
+int
nfsd_idmap_init(void)
{
- cache_register(&idtoname_cache);
- cache_register(&nametoid_cache);
+ int rv;
+
+ rv = cache_register(&idtoname_cache);
+ if (rv)
+ return rv;
+ rv = cache_register(&nametoid_cache);
+ if (rv)
+ cache_unregister(&idtoname_cache);
+ return rv;
}
void
nfsd_idmap_shutdown(void)
{
- if (cache_unregister(&idtoname_cache))
- printk(KERN_ERR "nfsd: failed to unregister idtoname cache\n");
- if (cache_unregister(&nametoid_cache))
- printk(KERN_ERR "nfsd: failed to unregister nametoid cache\n");
+ cache_unregister(&idtoname_cache);
+ cache_unregister(&nametoid_cache);
}
/*
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 18ead17..c593db0 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -750,7 +750,7 @@ _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
cstate->current_fh.fh_export,
cstate->current_fh.fh_dentry, buf,
&count, verify->ve_bmval,
- rqstp);
+ rqstp, 0);
/* this means that nfsd4_encode_fattr() ran out of space */
if (status == nfserr_resource && count == 0)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 31673cd..f6744bc 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -61,7 +61,6 @@ static time_t lease_time = 90; /* default lease time */
static time_t user_lease_time = 90;
static time_t boot_time;
static int in_grace = 1;
-static u32 current_clientid = 1;
static u32 current_ownerid = 1;
static u32 current_fileid = 1;
static u32 current_delegid = 1;
@@ -340,21 +339,20 @@ STALE_CLIENTID(clientid_t *clid)
* This type of memory management is somewhat inefficient, but we use it
* anyway since SETCLIENTID is not a common operation.
*/
-static inline struct nfs4_client *
-alloc_client(struct xdr_netobj name)
+static struct nfs4_client *alloc_client(struct xdr_netobj name)
{
struct nfs4_client *clp;
- if ((clp = kzalloc(sizeof(struct nfs4_client), GFP_KERNEL))!= NULL) {
- if ((clp->cl_name.data = kmalloc(name.len, GFP_KERNEL)) != NULL) {
- memcpy(clp->cl_name.data, name.data, name.len);
- clp->cl_name.len = name.len;
- }
- else {
- kfree(clp);
- clp = NULL;
- }
+ clp = kzalloc(sizeof(struct nfs4_client), GFP_KERNEL);
+ if (clp == NULL)
+ return NULL;
+ clp->cl_name.data = kmalloc(name.len, GFP_KERNEL);
+ if (clp->cl_name.data == NULL) {
+ kfree(clp);
+ return NULL;
}
+ memcpy(clp->cl_name.data, name.data, name.len);
+ clp->cl_name.len = name.len;
return clp;
}
@@ -363,8 +361,11 @@ 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) {
+ /*
+ * Callback threads take a reference on the client, so there
+ * should be no outstanding callbacks at this point.
+ */
clp->cl_callback.cb_client = NULL;
rpc_shutdown_client(clnt);
}
@@ -422,12 +423,13 @@ expire_client(struct nfs4_client *clp)
put_nfs4_client(clp);
}
-static struct nfs4_client *
-create_client(struct xdr_netobj name, char *recdir) {
+static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir)
+{
struct nfs4_client *clp;
- if (!(clp = alloc_client(name)))
- goto out;
+ clp = alloc_client(name);
+ if (clp == NULL)
+ return NULL;
memcpy(clp->cl_recdir, recdir, HEXDIR_LEN);
atomic_set(&clp->cl_count, 1);
atomic_set(&clp->cl_callback.cb_set, 0);
@@ -436,32 +438,30 @@ create_client(struct xdr_netobj name, char *recdir) {
INIT_LIST_HEAD(&clp->cl_openowners);
INIT_LIST_HEAD(&clp->cl_delegations);
INIT_LIST_HEAD(&clp->cl_lru);
-out:
return clp;
}
-static void
-copy_verf(struct nfs4_client *target, nfs4_verifier *source) {
- memcpy(target->cl_verifier.data, source->data, sizeof(target->cl_verifier.data));
+static void copy_verf(struct nfs4_client *target, nfs4_verifier *source)
+{
+ memcpy(target->cl_verifier.data, source->data,
+ sizeof(target->cl_verifier.data));
}
-static void
-copy_clid(struct nfs4_client *target, struct nfs4_client *source) {
+static void copy_clid(struct nfs4_client *target, struct nfs4_client *source)
+{
target->cl_clientid.cl_boot = source->cl_clientid.cl_boot;
target->cl_clientid.cl_id = source->cl_clientid.cl_id;
}
-static void
-copy_cred(struct svc_cred *target, struct svc_cred *source) {
-
+static void copy_cred(struct svc_cred *target, struct svc_cred *source)
+{
target->cr_uid = source->cr_uid;
target->cr_gid = source->cr_gid;
target->cr_group_info = source->cr_group_info;
get_group_info(target->cr_group_info);
}
-static inline int
-same_name(const char *n1, const char *n2)
+static int same_name(const char *n1, const char *n2)
{
return 0 == memcmp(n1, n2, HEXDIR_LEN);
}
@@ -485,26 +485,26 @@ same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
return cr1->cr_uid == cr2->cr_uid;
}
-static void
-gen_clid(struct nfs4_client *clp) {
+static void gen_clid(struct nfs4_client *clp)
+{
+ static u32 current_clientid = 1;
+
clp->cl_clientid.cl_boot = boot_time;
clp->cl_clientid.cl_id = current_clientid++;
}
-static void
-gen_confirm(struct nfs4_client *clp) {
- struct timespec tv;
- u32 * p;
+static void gen_confirm(struct nfs4_client *clp)
+{
+ static u32 i;
+ u32 *p;
- tv = CURRENT_TIME;
p = (u32 *)clp->cl_confirm.data;
- *p++ = tv.tv_sec;
- *p++ = tv.tv_nsec;
+ *p++ = get_seconds();
+ *p++ = i++;
}
-static int
-check_name(struct xdr_netobj name) {
-
+static int check_name(struct xdr_netobj name)
+{
if (name.len == 0)
return 0;
if (name.len > NFS4_OPAQUE_LIMIT) {
@@ -683,39 +683,6 @@ out_err:
return;
}
-/*
- * RFC 3010 has a complex implmentation description of processing a
- * SETCLIENTID request consisting of 5 bullets, labeled as
- * CASE0 - CASE4 below.
- *
- * NOTES:
- * callback information will be processed in a future patch
- *
- * an unconfirmed record is added when:
- * NORMAL (part of CASE 4): there is no confirmed nor unconfirmed record.
- * CASE 1: confirmed record found with matching name, principal,
- * verifier, and clientid.
- * CASE 2: confirmed record found with matching name, principal,
- * and there is no unconfirmed record with matching
- * name and principal
- *
- * an unconfirmed record is replaced when:
- * CASE 3: confirmed record found with matching name, principal,
- * and an unconfirmed record is found with matching
- * name, principal, and with clientid and
- * confirm that does not match the confirmed record.
- * CASE 4: there is no confirmed record with matching name and
- * principal. there is an unconfirmed record with
- * matching name, principal.
- *
- * an unconfirmed record is deleted when:
- * CASE 1: an unconfirmed record that matches input name, verifier,
- * and confirmed clientid.
- * CASE 4: any unconfirmed records with matching name and principal
- * that exist after an unconfirmed record has been replaced
- * as described above.
- *
- */
__be32
nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid *setclid)
@@ -748,11 +715,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
- /*
- * CASE 0:
- * clname match, confirmed, different principal
- * or different ip_address
- */
+ /* RFC 3530 14.2.33 CASE 0: */
status = nfserr_clid_inuse;
if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)
|| conf->cl_addr != sin->sin_addr.s_addr) {
@@ -761,12 +724,17 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
}
}
+ /*
+ * section 14.2.33 of RFC 3530 (under the heading "IMPLEMENTATION")
+ * has a description of SETCLIENTID request processing consisting
+ * of 5 bullet points, labeled as CASE0 - CASE4 below.
+ */
unconf = find_unconfirmed_client_by_str(dname, strhashval);
status = nfserr_resource;
if (!conf) {
- /*
- * CASE 4:
- * placed first, because it is the normal case.
+ /*
+ * RFC 3530 14.2.33 CASE 4:
+ * placed first, because it is the normal case
*/
if (unconf)
expire_client(unconf);
@@ -776,17 +744,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
gen_clid(new);
} else if (same_verf(&conf->cl_verifier, &clverifier)) {
/*
- * CASE 1:
- * cl_name match, confirmed, principal match
- * verifier match: probable callback update
- *
- * remove any unconfirmed nfs4_client with
- * matching cl_name, cl_verifier, and cl_clientid
- *
- * create and insert an unconfirmed nfs4_client with same
- * cl_name, cl_verifier, and cl_clientid as existing
- * nfs4_client, but with the new callback info and a
- * new cl_confirm
+ * RFC 3530 14.2.33 CASE 1:
+ * probable callback update
*/
if (unconf) {
/* Note this is removing unconfirmed {*x***},
@@ -802,43 +761,25 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
copy_clid(new, conf);
} else if (!unconf) {
/*
- * CASE 2:
- * clname match, confirmed, principal match
- * verfier does not match
- * no unconfirmed. create a new unconfirmed nfs4_client
- * using input clverifier, clname, and callback info
- * and generate a new cl_clientid and cl_confirm.
+ * RFC 3530 14.2.33 CASE 2:
+ * probable client reboot; state will be removed if
+ * confirmed.
*/
new = create_client(clname, dname);
if (new == NULL)
goto out;
gen_clid(new);
- } else if (!same_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
- /*
- * CASE3:
- * confirmed found (name, principal match)
- * confirmed verifier does not match input clverifier
- *
- * unconfirmed found (name match)
- * confirmed->cl_confirm != unconfirmed->cl_confirm
- *
- * remove unconfirmed.
- *
- * create an unconfirmed nfs4_client
- * with same cl_name as existing confirmed nfs4_client,
- * but with new callback info, new cl_clientid,
- * new cl_verifier and a new cl_confirm
+ } else {
+ /*
+ * RFC 3530 14.2.33 CASE 3:
+ * probable client reboot; state will be removed if
+ * confirmed.
*/
expire_client(unconf);
new = create_client(clname, dname);
if (new == NULL)
goto out;
gen_clid(new);
- } else {
- /* No cases hit !!! */
- status = nfserr_inval;
- goto out;
-
}
copy_verf(new, &clverifier);
new->cl_addr = sin->sin_addr.s_addr;
@@ -857,11 +798,9 @@ out:
/*
- * RFC 3010 has a complex implmentation description of processing a
- * SETCLIENTID_CONFIRM request consisting of 4 bullets describing
- * processing on a DRC miss, labeled as CASE1 - CASE4 below.
- *
- * NOTE: callback information will be processed here in a future patch
+ * Section 14.2.34 of RFC 3530 (under the heading "IMPLEMENTATION") has
+ * a description of SETCLIENTID_CONFIRM request processing consisting of 4
+ * bullets, labeled as CASE1 - CASE4 below.
*/
__be32
nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
@@ -892,16 +831,16 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
if (unconf && unconf->cl_addr != sin->sin_addr.s_addr)
goto out;
- if ((conf && unconf) &&
- (same_verf(&unconf->cl_confirm, &confirm)) &&
- (same_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
- (same_name(conf->cl_recdir,unconf->cl_recdir)) &&
- (!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
- */
+ /*
+ * section 14.2.34 of RFC 3530 has a description of
+ * SETCLIENTID_CONFIRM request processing consisting
+ * of 4 bullet points, labeled as CASE1 - CASE4 below.
+ */
+ if (conf && unconf && same_verf(&confirm, &unconf->cl_confirm)) {
+ /*
+ * RFC 3530 14.2.34 CASE 1:
+ * callback update
+ */
if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
status = nfserr_clid_inuse;
else {
@@ -914,15 +853,11 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
status = nfs_ok;
}
- } else if ((conf && !unconf) ||
- ((conf && unconf) &&
- (!same_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
- !same_name(conf->cl_recdir, unconf->cl_recdir)))) {
- /* CASE 2:
- * conf record that matches input clientid.
- * if unconf record matches input clientid, then
- * unconf->cl_name or unconf->cl_verifier don't match the
- * conf record.
+ } else if (conf && !unconf) {
+ /*
+ * RFC 3530 14.2.34 CASE 2:
+ * probable retransmitted request; play it safe and
+ * do nothing.
*/
if (!same_creds(&conf->cl_cred, &rqstp->rq_cred))
status = nfserr_clid_inuse;
@@ -930,10 +865,9 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
status = nfs_ok;
} else if (!conf && unconf
&& same_verf(&unconf->cl_confirm, &confirm)) {
- /* CASE 3:
- * conf record not found.
- * unconf record found.
- * unconf->cl_confirm matches input confirm
+ /*
+ * RFC 3530 14.2.34 CASE 3:
+ * Normal case; new or rebooted client:
*/
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
status = nfserr_clid_inuse;
@@ -948,16 +882,15 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
}
move_to_confirmed(unconf);
conf = unconf;
+ nfsd4_probe_callback(conf);
status = nfs_ok;
}
} 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
- * match input confirm.
- * unconf record not found, or if unconf, unconf->cl_confirm
- * does not match input confirm.
+ /*
+ * RFC 3530 14.2.34 CASE 4:
+ * Client probably hasn't noticed that we rebooted yet.
*/
status = nfserr_stale_clientid;
} else {
@@ -965,8 +898,6 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
status = nfserr_clid_inuse;
}
out:
- if (!status)
- nfsd4_probe_callback(conf);
nfs4_unlock_state();
return status;
}
@@ -1226,14 +1157,19 @@ find_file(struct inode *ino)
return NULL;
}
-static int access_valid(u32 x)
+static inline int access_valid(u32 x)
{
- return (x > 0 && x < 4);
+ if (x < NFS4_SHARE_ACCESS_READ)
+ return 0;
+ if (x > NFS4_SHARE_ACCESS_BOTH)
+ return 0;
+ return 1;
}
-static int deny_valid(u32 x)
+static inline int deny_valid(u32 x)
{
- return (x >= 0 && x < 5);
+ /* Note: unlike access bits, deny bits may be zero. */
+ return x <= NFS4_SHARE_DENY_BOTH;
}
static void
@@ -2162,8 +2098,10 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
goto check_replay;
}
+ *stpp = stp;
+ *sopp = sop = stp->st_stateowner;
+
if (lock) {
- struct nfs4_stateowner *sop = stp->st_stateowner;
clientid_t *lockclid = &lock->v.new.clientid;
struct nfs4_client *clp = sop->so_client;
int lkflg = 0;
@@ -2193,9 +2131,6 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
return nfserr_bad_stateid;
}
- *stpp = stp;
- *sopp = sop = stp->st_stateowner;
-
/*
* We now validate the seqid and stateid generation numbers.
* For the moment, we ignore the possibility of
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 5733394..b0592e7 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -148,12 +148,12 @@ xdr_error: \
} \
} while (0)
-static __be32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
+static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
{
/* We want more bytes than seem to be available.
* Maybe we need a new page, maybe we have just run out
*/
- int avail = (char*)argp->end - (char*)argp->p;
+ unsigned int avail = (char *)argp->end - (char *)argp->p;
__be32 *p;
if (avail + argp->pagelen < nbytes)
return NULL;
@@ -169,6 +169,11 @@ static __be32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
return NULL;
}
+ /*
+ * The following memcpy is safe because read_buf is always
+ * called with nbytes > avail, and the two cases above both
+ * guarantee p points to at least nbytes bytes.
+ */
memcpy(p, argp->p, avail);
/* step to next page */
argp->p = page_address(argp->pagelist[0]);
@@ -1448,7 +1453,7 @@ static __be32 fattr_handle_absent_fs(u32 *bmval0, u32 *bmval1, u32 *rdattr_err)
__be32
nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
struct dentry *dentry, __be32 *buffer, int *countp, u32 *bmval,
- struct svc_rqst *rqstp)
+ struct svc_rqst *rqstp, int ignore_crossmnt)
{
u32 bmval0 = bmval[0];
u32 bmval1 = bmval[1];
@@ -1828,7 +1833,12 @@ out_acl:
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
if ((buflen -= 8) < 0)
goto out_resource;
- if (exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
+ /*
+ * Get parent's attributes if not ignoring crossmount
+ * and this is the root of a cross-mounted filesystem.
+ */
+ if (ignore_crossmnt == 0 &&
+ 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)
@@ -1864,13 +1874,25 @@ nfsd4_encode_dirent_fattr(struct nfsd4_readdir *cd,
struct svc_export *exp = cd->rd_fhp->fh_export;
struct dentry *dentry;
__be32 nfserr;
+ int ignore_crossmnt = 0;
dentry = lookup_one_len(name, cd->rd_fhp->fh_dentry, namlen);
if (IS_ERR(dentry))
return nfserrno(PTR_ERR(dentry));
exp_get(exp);
- if (d_mountpoint(dentry)) {
+ /*
+ * In the case of a mountpoint, the client may be asking for
+ * attributes that are only properties of the underlying filesystem
+ * as opposed to the cross-mounted file system. In such a case,
+ * we will not follow the cross mount and will fill the attribtutes
+ * directly from the mountpoint dentry.
+ */
+ if (d_mountpoint(dentry) &&
+ (cd->rd_bmval[0] & ~FATTR4_WORD0_RDATTR_ERROR) == 0 &&
+ (cd->rd_bmval[1] & ~FATTR4_WORD1_MOUNTED_ON_FILEID) == 0)
+ ignore_crossmnt = 1;
+ else if (d_mountpoint(dentry)) {
int err;
/*
@@ -1889,7 +1911,7 @@ nfsd4_encode_dirent_fattr(struct nfsd4_readdir *cd,
}
nfserr = nfsd4_encode_fattr(NULL, exp, dentry, p, buflen, cd->rd_bmval,
- cd->rd_rqstp);
+ cd->rd_rqstp, ignore_crossmnt);
out_put:
dput(dentry);
exp_put(exp);
@@ -2043,7 +2065,7 @@ nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
buflen = resp->end - resp->p - (COMPOUND_ERR_SLACK_SPACE >> 2);
nfserr = nfsd4_encode_fattr(fhp, fhp->fh_export, fhp->fh_dentry,
resp->p, &buflen, getattr->ga_bmval,
- resp->rqstp);
+ resp->rqstp, 0);
if (!nfserr)
resp->p += buflen;
return nfserr;
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 578f2c9..5bfc2ac 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -44,17 +44,17 @@ static int nfsd_cache_append(struct svc_rqst *rqstp, struct kvec *vec);
*/
static DEFINE_SPINLOCK(cache_lock);
-void
-nfsd_cache_init(void)
+int nfsd_reply_cache_init(void)
{
struct svc_cacherep *rp;
int i;
INIT_LIST_HEAD(&lru_head);
i = CACHESIZE;
- while(i) {
+ while (i) {
rp = kmalloc(sizeof(*rp), GFP_KERNEL);
- if (!rp) break;
+ if (!rp)
+ goto out_nomem;
list_add(&rp->c_lru, &lru_head);
rp->c_state = RC_UNUSED;
rp->c_type = RC_NOCACHE;
@@ -62,23 +62,19 @@ nfsd_cache_init(void)
i--;
}
- if (i)
- printk (KERN_ERR "nfsd: cannot allocate all %d cache entries, only got %d\n",
- CACHESIZE, CACHESIZE-i);
-
hash_list = kcalloc (HASHSIZE, sizeof(struct hlist_head), GFP_KERNEL);
- if (!hash_list) {
- nfsd_cache_shutdown();
- printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for hash list\n",
- HASHSIZE * sizeof(struct hlist_head));
- return;
- }
+ if (!hash_list)
+ goto out_nomem;
cache_disabled = 0;
+ return 0;
+out_nomem:
+ printk(KERN_ERR "nfsd: failed to allocate reply cache\n");
+ nfsd_reply_cache_shutdown();
+ return -ENOMEM;
}
-void
-nfsd_cache_shutdown(void)
+void nfsd_reply_cache_shutdown(void)
{
struct svc_cacherep *rp;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 77dc989..8516137 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -304,6 +304,9 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
struct auth_domain *dom;
struct knfsd_fh fh;
+ if (size == 0)
+ return -EINVAL;
+
if (buf[size-1] != '\n')
return -EINVAL;
buf[size-1] = 0;
@@ -503,7 +506,7 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size)
int len = 0;
lock_kernel();
if (nfsd_serv)
- len = svc_sock_names(buf, nfsd_serv, NULL);
+ len = svc_xprt_names(nfsd_serv, buf, 0);
unlock_kernel();
return len;
}
@@ -540,7 +543,7 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size)
}
return err < 0 ? err : 0;
}
- if (buf[0] == '-') {
+ if (buf[0] == '-' && isdigit(buf[1])) {
char *toclose = kstrdup(buf+1, GFP_KERNEL);
int len = 0;
if (!toclose)
@@ -554,6 +557,53 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size)
kfree(toclose);
return len;
}
+ /*
+ * Add a transport listener by writing it's transport name
+ */
+ if (isalpha(buf[0])) {
+ int err;
+ char transport[16];
+ int port;
+ if (sscanf(buf, "%15s %4d", transport, &port) == 2) {
+ err = nfsd_create_serv();
+ if (!err) {
+ err = svc_create_xprt(nfsd_serv,
+ transport, port,
+ SVC_SOCK_ANONYMOUS);
+ if (err == -ENOENT)
+ /* Give a reasonable perror msg for
+ * bad transport string */
+ err = -EPROTONOSUPPORT;
+ }
+ return err < 0 ? err : 0;
+ }
+ }
+ /*
+ * Remove a transport by writing it's transport name and port number
+ */
+ if (buf[0] == '-' && isalpha(buf[1])) {
+ struct svc_xprt *xprt;
+ int err = -EINVAL;
+ char transport[16];
+ int port;
+ if (sscanf(&buf[1], "%15s %4d", transport, &port) == 2) {
+ if (port == 0)
+ return -EINVAL;
+ lock_kernel();
+ if (nfsd_serv) {
+ xprt = svc_find_xprt(nfsd_serv, transport,
+ AF_UNSPEC, port);
+ if (xprt) {
+ svc_close_xprt(xprt);
+ svc_xprt_put(xprt);
+ err = 0;
+ } else
+ err = -ENOTCONN;
+ }
+ unlock_kernel();
+ return err < 0 ? err : 0;
+ }
+ }
return -EINVAL;
}
@@ -616,7 +666,7 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
char *recdir;
int len, status;
- if (size > PATH_MAX || buf[size-1] != '\n')
+ if (size == 0 || size > PATH_MAX || buf[size-1] != '\n')
return -EINVAL;
buf[size-1] = 0;
@@ -674,6 +724,27 @@ static struct file_system_type nfsd_fs_type = {
.kill_sb = kill_litter_super,
};
+#ifdef CONFIG_PROC_FS
+static int create_proc_exports_entry(void)
+{
+ struct proc_dir_entry *entry;
+
+ entry = proc_mkdir("fs/nfs", NULL);
+ if (!entry)
+ return -ENOMEM;
+ entry = create_proc_entry("fs/nfs/exports", 0, NULL);
+ if (!entry)
+ return -ENOMEM;
+ entry->proc_fops = &exports_operations;
+ return 0;
+}
+#else /* CONFIG_PROC_FS */
+static int create_proc_exports_entry(void)
+{
+ return 0;
+}
+#endif
+
static int __init init_nfsd(void)
{
int retval;
@@ -683,32 +754,43 @@ static int __init init_nfsd(void)
if (retval)
return retval;
nfsd_stat_init(); /* Statistics */
- nfsd_cache_init(); /* RPC reply cache */
- nfsd_export_init(); /* Exports table */
+ retval = nfsd_reply_cache_init();
+ if (retval)
+ goto out_free_stat;
+ retval = nfsd_export_init();
+ if (retval)
+ goto out_free_cache;
nfsd_lockd_init(); /* lockd->nfsd callbacks */
- nfsd_idmap_init(); /* Name to ID mapping */
- if (proc_mkdir("fs/nfs", NULL)) {
- struct proc_dir_entry *entry;
- entry = create_proc_entry("fs/nfs/exports", 0, NULL);
- if (entry)
- entry->proc_fops = &exports_operations;
- }
+ retval = nfsd_idmap_init();
+ if (retval)
+ goto out_free_lockd;
+ retval = create_proc_exports_entry();
+ if (retval)
+ goto out_free_idmap;
retval = register_filesystem(&nfsd_fs_type);
- if (retval) {
- nfsd_export_shutdown();
- nfsd_cache_shutdown();
- remove_proc_entry("fs/nfs/exports", NULL);
- remove_proc_entry("fs/nfs", NULL);
- nfsd_stat_shutdown();
- nfsd_lockd_shutdown();
- }
+ if (retval)
+ goto out_free_all;
+ return 0;
+out_free_all:
+ remove_proc_entry("fs/nfs/exports", NULL);
+ remove_proc_entry("fs/nfs", NULL);
+out_free_idmap:
+ nfsd_idmap_shutdown();
+out_free_lockd:
+ nfsd_lockd_shutdown();
+ nfsd_export_shutdown();
+out_free_cache:
+ nfsd_reply_cache_shutdown();
+out_free_stat:
+ nfsd_stat_shutdown();
+ nfsd4_free_slabs();
return retval;
}
static void __exit exit_nfsd(void)
{
nfsd_export_shutdown();
- nfsd_cache_shutdown();
+ nfsd_reply_cache_shutdown();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
nfsd_stat_shutdown();
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 468f17a..8fbd2dc 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -22,6 +22,7 @@
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/nfsd/nfsd.h>
+#include "auth.h"
#define NFSDDBG_FACILITY NFSDDBG_FH
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 1190aea..9647b0f 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -155,8 +155,8 @@ static int killsig; /* signal that was used to kill last nfsd */
static void nfsd_last_thread(struct svc_serv *serv)
{
/* When last nfsd thread exits we need to do some clean-up */
- struct svc_sock *svsk;
- list_for_each_entry(svsk, &serv->sv_permsocks, sk_list)
+ struct svc_xprt *xprt;
+ list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list)
lockd_down();
nfsd_serv = NULL;
nfsd_racache_shutdown();
@@ -236,7 +236,7 @@ static int nfsd_init_socks(int port)
error = lockd_up(IPPROTO_UDP);
if (error >= 0) {
- error = svc_makesock(nfsd_serv, IPPROTO_UDP, port,
+ error = svc_create_xprt(nfsd_serv, "udp", port,
SVC_SOCK_DEFAULTS);
if (error < 0)
lockd_down();
@@ -247,7 +247,7 @@ static int nfsd_init_socks(int port)
#ifdef CONFIG_NFSD_TCP
error = lockd_up(IPPROTO_TCP);
if (error >= 0) {
- error = svc_makesock(nfsd_serv, IPPROTO_TCP, port,
+ error = svc_create_xprt(nfsd_serv, "tcp", port,
SVC_SOCK_DEFAULTS);
if (error < 0)
lockd_down();
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index b86e365..61ad617 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -15,6 +15,7 @@
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/xdr.h>
#include <linux/mm.h>
+#include "auth.h"
#define NFSDDBG_FACILITY NFSDDBG_XDR
@@ -62,10 +63,10 @@ encode_fh(__be32 *p, struct svc_fh *fhp)
* no slashes or null bytes.
*/
static __be32 *
-decode_filename(__be32 *p, char **namp, int *lenp)
+decode_filename(__be32 *p, char **namp, unsigned int *lenp)
{
char *name;
- int i;
+ unsigned int i;
if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS_MAXNAMLEN)) != NULL) {
for (i = 0, name = *namp; i < *lenp; i++, name++) {
@@ -78,10 +79,10 @@ decode_filename(__be32 *p, char **namp, int *lenp)
}
static __be32 *
-decode_pathname(__be32 *p, char **namp, int *lenp)
+decode_pathname(__be32 *p, char **namp, unsigned int *lenp)
{
char *name;
- int i;
+ unsigned int i;
if ((p = xdr_decode_string_inplace(p, namp, lenp, NFS_MAXPATHLEN)) != NULL) {
for (i = 0, name = *namp; i < *lenp; i++, name++) {
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index d019918..cc75e4f 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -132,7 +132,7 @@ out:
__be32
nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp,
- const char *name, int len,
+ const char *name, unsigned int len,
struct svc_export **exp_ret, struct dentry **dentry_ret)
{
struct svc_export *exp;
@@ -226,7 +226,7 @@ out_nfserr:
*/
__be32
nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name,
- int len, struct svc_fh *resfh)
+ unsigned int len, struct svc_fh *resfh)
{
struct svc_export *exp;
struct dentry *dentry;
@@ -1151,6 +1151,26 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
#endif /* CONFIG_NFSD_V3 */
+__be32
+nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *resfhp,
+ struct iattr *iap)
+{
+ /*
+ * Mode has already been set earlier in create:
+ */
+ iap->ia_valid &= ~ATTR_MODE;
+ /*
+ * Setting uid/gid works only for root. Irix appears to
+ * send along the gid on create when it tries to implement
+ * setgid directories via NFS:
+ */
+ if (current->fsuid != 0)
+ iap->ia_valid &= ~(ATTR_UID|ATTR_GID);
+ if (iap->ia_valid)
+ return nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
+ return 0;
+}
+
/*
* Create a file (regular, directory, device, fifo); UNIX sockets
* not yet implemented.
@@ -1167,6 +1187,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct dentry *dentry, *dchild = NULL;
struct inode *dirp;
__be32 err;
+ __be32 err2;
int host_err;
err = nfserr_perm;
@@ -1257,16 +1278,9 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
- /* Set file attributes. Mode has already been set and
- * setting uid/gid works only for root. Irix appears to
- * send along the gid when it tries to implement setgid
- * directories via NFS.
- */
- if ((iap->ia_valid &= ~(ATTR_UID|ATTR_GID|ATTR_MODE)) != 0) {
- __be32 err2 = nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
- if (err2)
- err = err2;
- }
+ err2 = nfsd_create_setattr(rqstp, resfhp, iap);
+ if (err2)
+ err = err2;
/*
* Update the file handle to get the new inode info.
*/
@@ -1295,6 +1309,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct dentry *dentry, *dchild = NULL;
struct inode *dirp;
__be32 err;
+ __be32 err2;
int host_err;
__u32 v_mtime=0, v_atime=0;
@@ -1399,16 +1414,10 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
iap->ia_atime.tv_nsec = 0;
}
- /* Set file attributes.
- * Irix appears to send along the gid when it tries to
- * implement setgid directories via NFS. Clear out all that cruft.
- */
set_attr:
- if ((iap->ia_valid &= ~(ATTR_UID|ATTR_GID|ATTR_MODE)) != 0) {
- __be32 err2 = nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
- if (err2)
- err = err2;
- }
+ err2 = nfsd_create_setattr(rqstp, resfhp, iap);
+ if (err2)
+ err = err2;
/*
* Update the filehandle to get the new inode info.
generated by cgit v1.1 at 2024-12-26 01:52:39 +0000