[bpf-next,0/3] skmsg: Add the data length in skmsg to SIOCINQ ioctl and rx_queue

Message

Pengcheng Yang Nov. 14, 2023, 11:41 a.m. UTC

When using skmsg redirect, the msg is queued in psock->ingress_msg,
and the application calling SIOCINQ ioctl will return a readable
length of 0, and we cannot track the data length of ingress_msg from
the ss tool.

In this patch set, we added the data length in ingress_msg to the 
SIOCINQ ioctl and the rx_queue of tcp_diag.

Pengcheng Yang (3):
  skmsg: Calculate the data length in ingress_msg
  tcp: Add the data length in skmsg to SIOCINQ ioctl
  tcp_diag: Add the data length in skmsg to rx_queue

 include/linux/skmsg.h | 24 ++++++++++++++++++++++--
 net/core/skmsg.c      |  4 ++++
 net/ipv4/tcp.c        |  3 ++-
 net/ipv4/tcp_diag.c   |  2 ++
 4 files changed, 30 insertions(+), 3 deletions(-)