diff options
Diffstat (limited to 'udp_flow.c')
| -rw-r--r-- | udp_flow.c | 41 |
1 files changed, 20 insertions, 21 deletions
@@ -41,24 +41,22 @@ struct udp_flow *udp_at_sidx(flow_sidx_t sidx) */ void udp_flow_close(const struct ctx *c, struct udp_flow *uflow) { + unsigned sidei; + if (uflow->closed) return; /* Nothing to do */ - if (uflow->s[INISIDE] >= 0) { - /* The listening socket needs to stay in epoll */ - close(uflow->s[INISIDE]); - uflow->s[INISIDE] = -1; - } - - if (uflow->s[TGTSIDE] >= 0) { - /* But the flow specific one needs to be removed */ - epoll_del(c, uflow->s[TGTSIDE]); - close(uflow->s[TGTSIDE]); - uflow->s[TGTSIDE] = -1; + flow_foreach_sidei(sidei) { + flow_hash_remove(c, FLOW_SIDX(uflow, sidei)); + if (uflow->s[sidei] >= 0) { + /* The listening socket needs to stay in epoll, but the + * flow specific one needs to be removed */ + if (sidei == TGTSIDE) + epoll_del(c, uflow->s[sidei]); + close(uflow->s[sidei]); + uflow->s[sidei] = -1; + } } - flow_hash_remove(c, FLOW_SIDX(uflow, INISIDE)); - if (!pif_is_socket(uflow->f.pif[TGTSIDE])) - flow_hash_remove(c, FLOW_SIDX(uflow, TGTSIDE)); uflow->closed = true; } @@ -77,6 +75,7 @@ static flow_sidx_t udp_flow_new(const struct ctx *c, union flow *flow, { struct udp_flow *uflow = NULL; const struct flowside *tgt; + unsigned sidei; uint8_t tgtpif; if (!(tgt = flow_target(c, flow, IPPROTO_UDP))) @@ -143,14 +142,14 @@ static flow_sidx_t udp_flow_new(const struct ctx *c, union flow *flow, } } - flow_hash_insert(c, FLOW_SIDX(uflow, INISIDE)); - - /* If the target side is a socket, it will be a reply socket that knows - * its own flowside. But if it's tap, then we need to look it up by - * hash. + /* Tap sides always need to be looked up by hash. Socket sides don't + * always, but sometimes do (receiving packets on a socket not specific + * to one flow). Unconditionally hash both sides so all our bases are + * covered */ - if (!pif_is_socket(tgtpif)) - flow_hash_insert(c, FLOW_SIDX(uflow, TGTSIDE)); + flow_foreach_sidei(sidei) + flow_hash_insert(c, FLOW_SIDX(uflow, sidei)); + FLOW_ACTIVATE(uflow); return FLOW_SIDX(uflow, TGTSIDE); |