diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/openvpn/dco_freebsd.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/openvpn/dco_freebsd.c b/src/openvpn/dco_freebsd.c index 3ba1c81..577c65f 100644 --- a/src/openvpn/dco_freebsd.c +++ b/src/openvpn/dco_freebsd.c @@ -698,7 +698,8 @@ dco_get_peer_stats_multi(dco_context_t *dco, struct multi_context *m) { struct ifdrv drv; - uint8_t buf[4096]; + uint8_t *buf = NULL; + size_t buf_size = 4096; nvlist_t *nvl; const nvlist_t *const *nvpeers; size_t npeers; @@ -712,17 +713,28 @@ dco_get_peer_stats_multi(dco_context_t *dco, struct multi_context *m) CLEAR(drv); snprintf(drv.ifd_name, IFNAMSIZ, "%s", dco->ifname); drv.ifd_cmd = OVPN_GET_PEER_STATS; - drv.ifd_len = sizeof(buf); + +retry: + buf = realloc(buf, buf_size); + drv.ifd_len = buf_size; drv.ifd_data = buf; ret = ioctl(dco->fd, SIOCGDRVSPEC, &drv); + if (ret && errno == ENOSPC) + { + buf_size *= 2; + goto retry; + } + if (ret) { + free(buf); msg(M_WARN | M_ERRNO, "Failed to get peer stats"); return -EINVAL; } nvl = nvlist_unpack(buf, drv.ifd_len, 0); + free(buf); if (!nvl) { msg(M_WARN, "Failed to unpack nvlist"); |