diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/svc_xprt.c | 35 |
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); |