mbox series

[v1,net-next,0/8] tcp: Clean up and refactor cookie_v[46]_check().

Message ID 20231123012521.62841-1-kuniyu@amazon.com (mailing list archive)
Headers show
Series tcp: Clean up and refactor cookie_v[46]_check(). | expand

Message

Kuniyuki Iwashima Nov. 23, 2023, 1:25 a.m. UTC 
This is a preparation series for upcoming arbitrary SYN Cookie
support with BPF. [0]

There are slight differences between cookie_v[46]_check().  Such a
discrepancy caused an issue in the past, and BPF SYN Cookie support
will add more churn.

The primary purpose of this series is to clean up and refactor
cookie_v[46]_check() to minimise such discrepancies and make the
BPF series easier to review.

[0]: https://lore.kernel.org/netdev/20231121184245.69569-1-kuniyu@amazon.com/


Kuniyuki Iwashima (8):
  tcp: Clean up reverse xmas tree in cookie_v[46]_check().
  tcp: Cache sock_net(sk) in cookie_v[46]_check().
  tcp: Clean up goto labels in cookie_v[46]_check().
  tcp: Don't pass cookie to __cookie_v[46]_check().
  tcp: Don't initialise tp->tsoffset in tcp_get_cookie_sock().
  tcp: Move TCP-AO bits from cookie_v[46]_check() to tcp_ao_syncookie().
  tcp: Factorise cookie-independent fields initialisation in
    cookie_v[46]_check().
  tcp: Factorise cookie-dependent fields initialisation in
    cookie_v[46]_check()

 include/linux/netfilter_ipv6.h   |   8 +-
 include/net/tcp.h                |  22 ++--
 include/net/tcp_ao.h             |   6 +-
 net/core/filter.c                |  15 +--
 net/ipv4/syncookies.c            | 216 ++++++++++++++++---------------
 net/ipv4/tcp_ao.c                |  16 ++-
 net/ipv6/syncookies.c            | 108 +++++++---------
 net/netfilter/nf_synproxy_core.c |   4 +-
 8 files changed, 199 insertions(+), 196 deletions(-)