xdp-project · simosund · May 10, 2021 · Jun 22, 2021 · Jun 11, 2021 · Jun 21, 2021
diff --git a/pping/README.md b/pping/README.md
diff --git a/pping/TODO.md b/pping/TODO.md
@@ -6,20 +6,23 @@
     - Timestamping pure ACKs may lead to erroneous RTTs (ex. delay
       between application attempting to send data being recognized as
       an RTT)
+  - [x] Skip non-ACKs for ingress
+    - The echoed TSecr is not valid if the ACK-flag is not set
   - [ ] Add fallback to SEQ/ACK in case of no timestamp?
     - Some machines may not use TCP timestamps (either not supported
       at all, or disabled as in ex. Windows 10)
     - If one only considers SEQ/ACK (and don't check for SACK
       options), could result in ex. delay from retransmission being
       included in RTT
-- [ ] ICMP (ex Echo/Reply)
+- [x] ICMP (ex Echo/Reply)
 - [ ] QUIC (based on spinbit)
+- [ ] DNS queries
 
 ## General pping
 - [x] Add sampling so that RTT is not calculated for every packet
       (with unique value) for large flows
   - [ ] Allow short bursts to bypass sampling in order to handle 
-        delayed ACKs
+        delayed ACKs, reordered or lost packets etc.
 - [x] Keep some per-flow state
   - Will likely be needed for the sampling
   - [ ] Could potentially include keeping track of average RTT, which

diff --git a/pping/bpf_egress_loader.sh b/pping/bpf_egress_loader.sh
diff --git a/pping/eBPF_pping_design.png b/pping/eBPF_pping_design.png
diff --git a/pping/functions.sh b/pping/functions.sh
diff --git a/pping/parameters.sh b/pping/parameters.sh