Attention is currently required from: fixeria, neels, osmith.
pespin has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/osmo-upf/+/41482?usp=email )
Change subject: Validate session remote CP F-SEID and use it to transmit session requests ......................................................................
Patch Set 1:
(1 comment)
File src/osmo-upf/up_endpoint.c:
https://gerrit.osmocom.org/c/osmo-upf/+/41482/comment/aec7b460_db1ea9ca?usp=... : PS1, Line 189: return OSMO_PFCP_CAUSE_MANDATORY_IE_INCORRECT;
having no error on `local_addr->u.sa.sa_family == AF_INET6 && !f_seid->ip_addr. […]
In theory it should be possible to send an IPv4 packet over an IPv6 socket with an IPv6 address such as "::".It could even be possible to send whatever as a IPv4v6 mapped address, though I'd need to look up for the details. In any case, this is a good start imho, and we can look for corner case configs if they ever show up.