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authorTom Tucker <tom@opengridcomputing.com>2007-12-30 21:08:37 -0600
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-02-01 16:42:14 -0500
commit9571af18fa1e4a431dc6f6023ddbd87d1112fd5d (patch)
treed8eafdea71ea1c13fe9c733442d41857e17901ac /net/sunrpc/svc_xprt.c
parenta217813f9067b785241cb7f31956e51d2071703a (diff)
svc: Add svc_xprt_names service to replace svc_sock_names
Create a transport independent version of the svc_sock_names function. The toclose capability of the svc_sock_names service can be implemented using the svc_xprt_find and svc_xprt_close services. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'net/sunrpc/svc_xprt.c')
-rw-r--r--net/sunrpc/svc_xprt.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 783597343877..c3fb36784f3b 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -1014,3 +1014,38 @@ struct svc_xprt *svc_find_xprt(struct svc_serv *serv, char *xcl_name,
return found;
}
EXPORT_SYMBOL_GPL(svc_find_xprt);
+
+/*
+ * Format a buffer with a list of the active transports. A zero for
+ * the buflen parameter disables target buffer overflow checking.
+ */
+int svc_xprt_names(struct svc_serv *serv, char *buf, int buflen)
+{
+ struct svc_xprt *xprt;
+ char xprt_str[64];
+ int totlen = 0;
+ int len;
+
+ /* Sanity check args */
+ if (!serv)
+ return 0;
+
+ spin_lock_bh(&serv->sv_lock);
+ list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list) {
+ len = snprintf(xprt_str, sizeof(xprt_str),
+ "%s %d\n", xprt->xpt_class->xcl_name,
+ svc_xprt_local_port(xprt));
+ /* If the string was truncated, replace with error string */
+ if (len >= sizeof(xprt_str))
+ strcpy(xprt_str, "name-too-long\n");
+ /* Don't overflow buffer */
+ len = strlen(xprt_str);
+ if (buflen && (len + totlen >= buflen))
+ break;
+ strcpy(buf+totlen, xprt_str);
+ totlen += len;
+ }
+ spin_unlock_bh(&serv->sv_lock);
+ return totlen;
+}
+EXPORT_SYMBOL_GPL(svc_xprt_names);