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authorNeilBrown <neilb@suse.de>2006-10-02 02:17:47 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 07:57:18 -0700
commit80212d59e32a8a8e030c2ddc5861d8ff70542c56 (patch)
treefb708f92e50ab8a1c13b68d4e6e3db8b50bd07a8
parent02a375f0ac4bc2e9b767fabb6b2f9915547226a7 (diff)
[PATCH] knfsd: define new nfsdfs file: portlist - contains list of ports
This file will list all ports that nfsd has open. Default when TCP enabled will be ipv4 udp 0.0.0.0 2049 ipv4 tcp 0.0.0.0 2049 Later, the list of ports will be settable. 'portlist' chosen rather than 'ports', to avoid unnecessary confusion with non-mainline patches which created 'ports' with different semantics. [akpm@osdl.org: cleanups, build fix] Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/nfsd/nfsctl.c20
-rw-r--r--include/linux/sunrpc/svcsock.h1
-rw-r--r--net/sunrpc/svcsock.c40
3 files changed, 61 insertions, 0 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index d6881774ea57..d4041a05bc19 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -23,10 +23,12 @@
#include <linux/pagemap.h>
#include <linux/init.h>
#include <linux/string.h>
+#include <linux/smp_lock.h>
#include <linux/nfs.h>
#include <linux/nfsd_idmap.h>
#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#include <linux/nfsd/xdr.h>
@@ -51,6 +53,7 @@ enum {
NFSD_Fh,
NFSD_Threads,
NFSD_Versions,
+ NFSD_Ports,
/*
* The below MUST come last. Otherwise we leave a hole in nfsd_files[]
* with !CONFIG_NFSD_V4 and simple_fill_super() goes oops
@@ -74,6 +77,7 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size);
static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
static ssize_t write_threads(struct file *file, char *buf, size_t size);
static ssize_t write_versions(struct file *file, char *buf, size_t size);
+static ssize_t write_ports(struct file *file, char *buf, size_t size);
#ifdef CONFIG_NFSD_V4
static ssize_t write_leasetime(struct file *file, char *buf, size_t size);
static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
@@ -90,6 +94,7 @@ static ssize_t (*write_op[])(struct file *, char *, size_t) = {
[NFSD_Fh] = write_filehandle,
[NFSD_Threads] = write_threads,
[NFSD_Versions] = write_versions,
+ [NFSD_Ports] = write_ports,
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = write_leasetime,
[NFSD_RecoveryDir] = write_recoverydir,
@@ -419,6 +424,20 @@ static ssize_t write_versions(struct file *file, char *buf, size_t size)
return len;
}
+static ssize_t write_ports(struct file *file, char *buf, size_t size)
+{
+ /* for now, ignore what was written and just
+ * return known ports
+ * AF proto address port
+ */
+ int len = 0;
+ lock_kernel();
+ if (nfsd_serv)
+ len = svc_sock_names(buf, nfsd_serv);
+ unlock_kernel();
+ return len;
+}
+
#ifdef CONFIG_NFSD_V4
extern time_t nfs4_leasetime(void);
@@ -482,6 +501,7 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
[NFSD_Fh] = {"filehandle", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Threads] = {"threads", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Versions] = {"versions", &transaction_ops, S_IWUSR|S_IRUSR},
+ [NFSD_Ports] = {"portlist", &transaction_ops, S_IWUSR|S_IRUGO},
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_RecoveryDir] = {"nfsv4recoverydir", &transaction_ops, S_IWUSR|S_IRUSR},
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index b4acb3d37c3f..3caf92d72a81 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -61,5 +61,6 @@ int svc_recv(struct svc_serv *, struct svc_rqst *, long);
int svc_send(struct svc_rqst *);
void svc_drop(struct svc_rqst *);
void svc_sock_update_bufs(struct svc_serv *serv);
+int svc_sock_names(char *buf, struct svc_serv *serv);
#endif /* SUNRPC_SVCSOCK_H */
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 5b0fe1b66a23..3ee4b78742b1 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -429,6 +429,46 @@ out:
}
/*
+ * Report socket names for nfsdfs
+ */
+static int one_sock_name(char *buf, struct svc_sock *svsk)
+{
+ int len;
+
+ switch(svsk->sk_sk->sk_family) {
+ case AF_INET:
+ len = sprintf(buf, "ipv4 %s %u.%u.%u.%u %d\n",
+ svsk->sk_sk->sk_protocol==IPPROTO_UDP?
+ "udp" : "tcp",
+ NIPQUAD(inet_sk(svsk->sk_sk)->rcv_saddr),
+ inet_sk(svsk->sk_sk)->num);
+ break;
+ default:
+ len = sprintf(buf, "*unknown-%d*\n",
+ svsk->sk_sk->sk_family);
+ }
+ return len;
+}
+
+int
+svc_sock_names(char *buf, struct svc_serv *serv)
+{
+ struct svc_sock *svsk;
+ int len = 0;
+
+ if (!serv)
+ return 0;
+ spin_lock(&serv->sv_lock);
+ list_for_each_entry(svsk, &serv->sv_permsocks, sk_list) {
+ int onelen = one_sock_name(buf+len, svsk);
+ len += onelen;
+ }
+ spin_unlock(&serv->sv_lock);
+ return len;
+}
+EXPORT_SYMBOL(svc_sock_names);
+
+/*
* Check input queue length
*/
static int