diff options
Diffstat (limited to 'fs/nfs/callback.c')
| -rw-r--r-- | fs/nfs/callback.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index fe0a6b8ac149..d6c4bae14bb9 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -36,6 +36,21 @@ static struct svc_program nfs4_callback_program; unsigned int nfs_callback_set_tcpport; unsigned short nfs_callback_tcpport; +static const int nfs_set_port_min = 0; +static const int nfs_set_port_max = 65535; + +static int param_set_port(const char *val, struct kernel_param *kp) +{ + char *endp; + int num = simple_strtol(val, &endp, 0); + if (endp == val || *endp || num < nfs_set_port_min || num > nfs_set_port_max) + return -EINVAL; + *((int *)kp->arg) = num; + return 0; +} + +module_param_call(callback_tcpport, param_set_port, param_get_int, + &nfs_callback_set_tcpport, 0644); /* * This is the callback kernel thread. |