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pasta, tcp: Update comment about spliced connection states

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...we now have SPLICE_FIN_{FROM,TO,BOTH} too.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2021-09-19 02:35:04 +02:00
parent e5c941b9f8
commit e9961cecfc
1 changed files with 4 additions and 1 deletions
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5
tcp.c
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@ -306,12 +306,15 @@
* namespaces, the implementation is substantially simpler: packets are directly
* translated between L4 sockets using a pair of splice() syscalls. These
* connections are tracked in the @ts array of struct tcp_splice_conn, using
* just four states:
* these states:
*
* - CLOSED: no connection
* - SPLICE_ACCEPTED: accept() on the listening socket succeeded
* - SPLICE_CONNECT: connect() issued in the destination namespace
* - SPLICE_ESTABLISHED: connect() succeeded, packets are transferred
* - SPLICE_FIN_FROM: FIN (EPOLLRDHUP) seen from originating socket
* - SPLICE_FIN_TO: FIN (EPOLLRDHUP) seen from connected socket
* - SPLICE_FIN_BOTH: FIN (EPOLLRDHUP) seen from both sides
*/
#define _GNU_SOURCE