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Miller" , David Ahern Cc: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Nicolai Stange Subject: [PATCH v1 0/4] ipv6: sr: make SR HMAC __init continue on missing algos Date: Mon, 10 Mar 2025 17:58:53 +0100 Message-ID: <20250310165857.3584612-1-nstange@suse.de> X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: AD5AB1F38A X-Spam-Level: X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_COUNT_TWO(0.00)[2]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCPT_COUNT_SEVEN(0.00)[9]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Score: -3.01 X-Spam-Flag: NO Hi all, this series prepares for prohibiting any SHA1 usage when booting in FIPS mode -- SHA1 will be sunset by NIST by the end of 2030 ([1]) and then at latest, attempts to instantiate it will have to be made to fail with -ENOENT (in FIPS mode only). Note that distros might want to make this move downstream today already. The problem is that the SR HMAC __init, and thus the IPv6 subsys as a whole, fails to come up upon encountering such an error. This series makes it to continue upon ENOENTs from the hmac instantiations. Thanks! Nicolai [1] https://www.nist.gov/news-events/news/2022/12/nist-retires-sha-1-cryptographic-algorithm Nicolai Stange (4): ipv6: sr: reject unsupported SR HMAC algos with -ENOENT ipv6: sr: factor seg6_hmac_exit()'s per-algo code into separate function ipv6: sr: factor seg6_hmac_init_algo()'s per-algo code into separate function ipv6: sr: continue initialization at ENOENT HMAC instantiation failures net/ipv6/seg6_hmac.c | 141 +++++++++++++++++++++++++------------------ 1 file changed, 81 insertions(+), 60 deletions(-) -- 2.47.1