[OpenSIPS-Devel] [OpenSIPS/opensips] a971b6: dialog: don't allow RE-INVITE and OPTIONS pinging ...

[Vlad Pătrașcu]

  Branch: refs/heads/3.0
  Home:   https://github.com/OpenSIPS/opensips
  Commit: a971b643fcc602172841cfea41fdc0ce2c698c3a
      https://github.com/OpenSIPS/opensips/commit/a971b643fcc602172841cfea41fdc0ce2c698c3a
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2020-07-18 (Sat, 18 Jul 2020)

  Changed paths:
    M modules/dialog/dialog.c
    M modules/dialog/doc/dialog_admin.xml

  Log Message:
  -----------
  dialog: don't allow RE-INVITE and OPTIONS pinging at the same time

Enabling both RE-INVITE and OPTIONS pinging for the same endpoint causes
issues with the CSEQ value in:
* ACK (incremented value compared to the corresponding INVITE)
* INVITE and OPTIONS (decreasing values between the requests), in case
  races occur between computing the new CSEQ values and sending the messages.

(cherry picked from commit 182ceb0ca6126251ca9e872844925c3bf60b1c90)