Message ID | 20240223-upstream-net-20240223-misc-fixes-v1-1-162e87e48497@kernel.org |
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State | New |
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Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Florian Westphal <fw@strlen.de>, Kishen Maloor <kishen.maloor@intel.com>, Shuah Khan <shuah@kernel.org>, Peter Krystad <peter.krystad@linux.intel.com>, Christoph Paasch <cpaasch@apple.com> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, "Matthieu Baerts (NGI0)" <matttbe@kernel.org>, Geliang Tang <tanggeliang@kylinos.cn>, stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1870; i=matttbe@kernel.org; h=from:subject:message-id; bh=R+BQBUEWiM2ym//t1ZB6xXS8N8caCdeWbnoDwiPCfe4=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBl2MRqwKTdW3PskIYPe7YlyeUTOtATAmZlVGcwi 6E30zx0XAmJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZdjEagAKCRD2t4JPQmmg c+uED/9eaB4gK4ZdGVN/ncv+ZTHQGFKZc8N5XfdpyCBQ7NySR9oJDseOFt0HeXKHsP209jWimRf awMCdYlcq/LHrQEWj7VtM7FoTxN5ddBcncCUoocl8y2xdnlx4I8wnw4Qyj7dcEZAZaov4CIZPwh ufGDCMQ2Oxelnq6Q/04157J4I+pNLLw7Pcs29qG5LLvRgy9HoE/eMS1EiFT4tMxOYkIeaValWwx L05c4WmSzqvbv5djX0YS3oSjCzSyV2bKvE0AglN74c+2SwOWh8TDvpkRmdOfEhTcjYvTjA87UR1 hmfHBVdNxNq9gEXzO+lSPu2H6ZWSzHSOGyhzJOZVkRvzyt2nTXOrA2VLY5bSIj8fp3euwLHieV2 1QEumN/7GjmjfxoT3L7rCCAWK9TTD10H+e1Tc8fo+ilAU2igODZ2oJ+P2ypi5sX+Du/JqgcJLeC rA6LeKFMDDS1vKm540vUESZ5R17q+3+TPDG5FufdSiBcMVhgBctFpTaM+iLhNpyOjfqQuZlrCOy dy21Hsc/8kRzgUlbANDYv181i+GAMR+8a5SuP5dFrcFi4OoSCeXA2rRiPBmyxIqcW1G6WtRxYmb 0Zk5skwre+t3qr0Bb3wD/okVf06rybE1Vxc0JmnA9WBUWlstnUZLMGzZBmaZhOCZ+dkhQzNOFdP KMvH74pTCriQOjg== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791708539438315453 X-GMAIL-MSGID: 1791708539438315453 |
Series |
mptcp: more misc. fixes for v6.8
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Commit Message
Matthieu Baerts (NGI0)
Feb. 23, 2024, 4:14 p.m. UTC
From: Geliang Tang <tanggeliang@kylinos.cn> Address family of server side mismatches with that of client side, like in "userspace pm add & remove address" test: userspace_pm_add_addr $ns1 10.0.2.1 10 userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $SUB_ESTABLISHED That's because on the server side, the family is set to AF_INET6 and the v4 address is mapped in a v6 one. This patch fixes this issue. In mptcp_pm_nl_subflow_destroy_doit(), before checking local address family with remote address family, map an IPv4 address to an IPv6 address if the pair is a v4-mapped address. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/387 Fixes: 702c2f646d42 ("mptcp: netlink: allow userspace-driven subflow establishment") Cc: stable@vger.kernel.org Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> --- net/mptcp/pm_userspace.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index d396a5973429..bc97cc30f013 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -495,6 +495,16 @@ int mptcp_pm_nl_subflow_destroy_doit(struct sk_buff *skb, struct genl_info *info goto destroy_err; } +#if IS_ENABLED(CONFIG_MPTCP_IPV6) + if (addr_l.family == AF_INET && ipv6_addr_v4mapped(&addr_r.addr6)) { + ipv6_addr_set_v4mapped(addr_l.addr.s_addr, &addr_l.addr6); + addr_l.family = AF_INET6; + } + if (addr_r.family == AF_INET && ipv6_addr_v4mapped(&addr_l.addr6)) { + ipv6_addr_set_v4mapped(addr_r.addr.s_addr, &addr_r.addr6); + addr_r.family = AF_INET6; + } +#endif if (addr_l.family != addr_r.family) { GENL_SET_ERR_MSG(info, "address families do not match"); err = -EINVAL;