From a45a7e97982acc7c9d00fddb0192fbbfcd2030d6 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Thu, 18 Jul 2024 15:26:46 +1000 Subject: udp: Create flows for datagrams from originating sockets This implements the first steps of tracking UDP packets with the flow table rather than its own (buggy) set of port maps. Specifically we create flow table entries for datagrams received from a socket (PIF_HOST or PIF_SPLICE). When splitting datagrams from sockets into batches, we group by the flow as well as splicesrc. This may result in smaller batches, but makes things easier down the line. We can re-optimise this later if necessary. For now we don't do anything else with the flow, not even match reply packets to the same flow. Signed-off-by: David Gibson Signed-off-by: Stefano Brivio --- flow.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'flow.h') diff --git a/flow.h b/flow.h index bf6b845..7866477 100644 --- a/flow.h +++ b/flow.h @@ -115,6 +115,8 @@ enum flow_type { FLOW_PING4, /* ICMPv6 echo requests from guest to host and matching replies back */ FLOW_PING6, + /* UDP pseudo-connection */ + FLOW_UDP, FLOW_NUM_TYPES, }; @@ -238,6 +240,8 @@ flow_sidx_t flow_lookup_af(const struct ctx *c, uint8_t proto, uint8_t pif, sa_family_t af, const void *eaddr, const void *faddr, in_port_t eport, in_port_t fport); +flow_sidx_t flow_lookup_sa(const struct ctx *c, uint8_t proto, uint8_t pif, + const void *esa, in_port_t fport); union flow; -- cgit v1.2.3