From 58a7d5d454cf3c84770719dfffab3ac3c0b3d0ae Mon Sep 17 00:00:00 2001 From: nrb <freifunk@nicoboehr.de> Date: Sat, 5 Jun 2021 20:58:46 +0200 Subject: [PATCH] add patch to set uradvd preferred lifetime to 0 --- ...ounce-node-prefix-with-preferred-lif.patch | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 patches/0002-add-patch-to-announce-node-prefix-with-preferred-lif.patch diff --git a/patches/0002-add-patch-to-announce-node-prefix-with-preferred-lif.patch b/patches/0002-add-patch-to-announce-node-prefix-with-preferred-lif.patch new file mode 100644 index 0000000..f4e5586 --- /dev/null +++ b/patches/0002-add-patch-to-announce-node-prefix-with-preferred-lif.patch @@ -0,0 +1,43 @@ +From d9632c77cdf45b65df2a31084ad63454c58e50aa Mon Sep 17 00:00:00 2001 +From: Nico <github@nicoboehr.de> +Date: Thu, 3 Jun 2021 20:35:15 +0000 +Subject: [PATCH 2/2] add patch to announce node prefix with preferred lifetime + of 0 + +--- + ...radvd-adjust-preferred-lifetime-to-0.patch | 23 +++++++++++++++++++ + 1 file changed, 23 insertions(+) + create mode 100644 patches/packages/gluon/0001-uradvd-adjust-preferred-lifetime-to-0.patch + +diff --git a/patches/packages/gluon/0001-uradvd-adjust-preferred-lifetime-to-0.patch b/patches/packages/gluon/0001-uradvd-adjust-preferred-lifetime-to-0.patch +new file mode 100644 +index 00000000..b974a8b5 +--- /dev/null ++++ b/patches/packages/gluon/0001-uradvd-adjust-preferred-lifetime-to-0.patch +@@ -0,0 +1,23 @@ ++From: Nico <github@nicoboehr.de> ++Date: Thu, 3 Jun 2021 20:31:55 +0000 ++Subject: uradvd: adjust preferred lifetime to 0 ++ ++When we announce a prefix from nodes which has a preferred lifetime ++of nonzero, clients can use this prefix as a source IP address. ++ ++As we announce the same prefix for every segment, this won't work. Hence, ++set the preferred lifetime to 0 so nobody ever uses it as a source IP. ++ ++diff --git a/net/uradvd/src/uradvd.c b/net/uradvd/src/uradvd.c ++index f6549f249518714e3d9210708b54cc23d85b26df..0edcfdcc02c3c1d513413d8cb580880e4ef9eab6 100644 ++--- a/net/uradvd/src/uradvd.c +++++ b/net/uradvd/src/uradvd.c ++@@ -62,7 +62,7 @@ ++ ++ /* These are in seconds */ ++ #define AdvValidLifetime 86400u ++-#define AdvPreferredLifetime 14400u +++#define AdvPreferredLifetime 0u ++ #define AdvDefaultLifetime 0u ++ #define AdvCurHopLimit 64u ++ #define AdvRDNSSLifetime 1200u +-- +2.31.1 + -- GitLab