Diffusion FreeBSD src repository 3d846e48227e

Do not forward datagrams originated by link-local addresses
3d846e48227e
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Description

Do not forward datagrams originated by link-local addresses

The current implement of ip_input() reject packets destined for
169.254.0.0/16, but not those original from 169.254.0.0/16 link-local
addresses.

Fix to fully respect RFC 3927 section 2.7.

PR: 255388
Reviewed by: donner, rgrimes, karels
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D29968

Details

Provenance

zlei	Authored on May 18 2021, 8:51 PM
donner	Committed on May 18 2021, 8:59 PM

Reviewer

Differential Revision

D30374: Restore RFC reference

Parents

rG63b6a08ce246: ng_parse: IP address parsing in netgraph eating too many characters

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Event Timeline

donner committed rG3d846e48227e: Do not forward datagrams originated by link-local addresses (authored by zlei).May 18 2021, 8:59 PM

donner added an edge: D29968: Do not forward datagrams original from 169.254.0.0/16 link-local addresses.

zlei added an edge: D30374: Restore RFC reference.May 21 2021, 8:26 AM

donner mentioned this in rG03b0505b8fe8: ip_forward: Restore RFC reference.May 22 2021, 10:02 PM

donner mentioned this in rG7da8312f7bf0: Do not forward datagrams originated by link-local addresses.Jun 17 2021, 8:16 AM

donner mentioned this in rGc0a91473f5be: Do not forward datagrams originated by link-local addresses.Jun 17 2021, 8:19 AM

donner mentioned this in rG9d30353cb494: Do not forward datagrams originated by link-local addresses.Jun 17 2021, 8:22 AM

Changes (1)

Path

Size

sys/

netinet/

rG3d846e48227e

sys/netinet/ip_input.c

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