diff options
Diffstat (limited to 'sys/netgraph/ng_ksocket.c')
| -rw-r--r-- | sys/netgraph/ng_ksocket.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/netgraph/ng_ksocket.c b/sys/netgraph/ng_ksocket.c index 7f2a654b7c10..023d7ccbe513 100644 --- a/sys/netgraph/ng_ksocket.c +++ b/sys/netgraph/ng_ksocket.c @@ -908,9 +908,14 @@ ng_ksocket_rcvdata(hook_p hook, item_p item) NGI_GET_M(item, m); NG_FREE_ITEM(item); - /* Look if socket address is stored in packet tags */ - if ((stag = (struct sa_tag *)m_tag_locate(m, NGM_KSOCKET_COOKIE, - NG_KSOCKET_TAG_SOCKADDR, NULL)) != NULL) + /* + * Look if socket address is stored in packet tags. + * If sockaddr is ours, or provided by a third party (zero id), + * then we accept it. + */ + if (((stag = (struct sa_tag *)m_tag_locate(m, NGM_KSOCKET_COOKIE, + NG_KSOCKET_TAG_SOCKADDR, NULL)) != NULL) && + (stag->id == NG_NODE_ID(node) || stag->id == 0)) sa = &stag->sa; /* Send packet */ @@ -1121,6 +1126,7 @@ ng_ksocket_incoming2(node_p node, hook_p hook, void *arg1, int waitflag) } bcopy(sa, &stag->sa, sa->sa_len); FREE(sa, M_SONAME); + stag->id = NG_NODE_ID(node); m_tag_prepend(m, &stag->tag); } |