| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20120425133742.13800.49114.stgit@localhost6.localdomain6>
Date: Wed, 25 Apr 2012 17:37:42 +0400
From: Stanislav Kinsbursky <skinsbursky@...allels.com>
To: bfields@...ldses.org, Trond.Myklebust@...app.com
Cc: linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
devel@...nvz.org
Subject: [PATCH 1/3] SUNRPC: new svc_bind() routine introduced
New routine is responsible for service registration in specified network
context.
The idea is to separate service creation from per-net operations.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
---
fs/lockd/svc.c | 6 ++++++
fs/nfs/callback.c | 8 ++++++++
fs/nfsd/nfssvc.c | 9 +++++++++
include/linux/sunrpc/svc.h | 1 +
net/sunrpc/svc.c | 19 ++++++++++---------
5 files changed, 34 insertions(+), 9 deletions(-)
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 1ead075..b7e92ed 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -324,6 +324,12 @@ int lockd_up(struct net *net)
goto out;
}
+ error = svc_bind(serv, net);
+ if (error < 0) {
+ printk(KERN_WARNING "lockd_up: bind service failed\n");
+ goto destroy_and_out;
+ }
+
error = make_socks(serv, net);
if (error < 0)
goto destroy_and_out;
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index eb95f50..26b38fb 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -17,6 +17,7 @@
#include <linux/kthread.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/bc_xprt.h>
+#include <linux/nsproxy.h>
#include <net/inet_sock.h>
@@ -253,6 +254,7 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
char svc_name[12];
int ret = 0;
int minorversion_setup;
+ struct net *net = current->nsproxy->net_ns;
mutex_lock(&nfs_callback_mutex);
if (cb_info->users++ || cb_info->task != NULL) {
@@ -265,6 +267,12 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
goto out_err;
}
+ ret = svc_bind(serv, net);
+ if (ret < 0) {
+ printk(KERN_WARNING "NFS: bind callback service failed\n");
+ goto out_err;
+ }
+
minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion,
serv, xprt, &rqstp, &callback_svc);
if (!minorversion_setup) {
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index cb4d51d..0762f3c 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/fs_struct.h>
#include <linux/swap.h>
+#include <linux/nsproxy.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/svcsock.h>
@@ -330,6 +331,8 @@ static int nfsd_get_default_max_blksize(void)
int nfsd_create_serv(void)
{
+ int error;
+
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (nfsd_serv) {
svc_get(nfsd_serv);
@@ -343,6 +346,12 @@ int nfsd_create_serv(void)
if (nfsd_serv == NULL)
return -ENOMEM;
+ error = svc_bind(nfsd_serv, current->nsproxy->net_ns);
+ if (error < 0) {
+ svc_destroy(nfsd_serv);
+ return error;
+ }
+
set_max_drc();
do_gettimeofday(&nfssvc_boot); /* record boot time */
return 0;
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 51b29ac..2b43e02 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -416,6 +416,7 @@ struct svc_procedure {
*/
int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
+int svc_bind(struct svc_serv *serv, struct net *net);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
void (*shutdown)(struct svc_serv *, struct net *net));
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 4153846..e6d542c 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -407,6 +407,14 @@ static int svc_uses_rpcbind(struct svc_serv *serv)
return 0;
}
+int svc_bind(struct svc_serv *serv, struct net *net)
+{
+ if (!svc_uses_rpcbind(serv))
+ return 0;
+ return svc_rpcb_setup(serv, net);
+}
+EXPORT_SYMBOL_GPL(svc_bind);
+
/*
* Create an RPC service
*/
@@ -471,15 +479,8 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
spin_lock_init(&pool->sp_lock);
}
- if (svc_uses_rpcbind(serv)) {
- if (svc_rpcb_setup(serv, current->nsproxy->net_ns) < 0) {
- kfree(serv->sv_pools);
- kfree(serv);
- return NULL;
- }
- if (!serv->sv_shutdown)
- serv->sv_shutdown = svc_rpcb_cleanup;
- }
+ if (svc_uses_rpcbind(serv) && (!serv->sv_shutdown))
+ serv->sv_shutdown = svc_rpcb_cleanup;
return serv;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists