commit 6006d17eab888bcd2c91d975e005c862477b4787
author Hungming Chen <nuccachen@google.com> Wed Nov 24 15:06:17 2021 +0800
committer Hungming Chen <nuccachen@google.com> Fri Dec 10 20:37:03 2021 +0800
tree cd4502710246c4cd1f85782db738f1099ddff3eb
parent a4e9681c88bd5b0be7062b4cad17ab8da1ff37a7

[RFCLAT#1] Move the raw socket creation from clatd to netd

This is a preparation for reducing the clatd required capability.

Function change:
Opening raw socket in open_sockets() is moved to ClatdController

Argument change:
-w [write socket file descriptor number] (added)

Test: manual test
1. Connect to ipv6-only wifi.
2. Try a IPv4 traffic.
   $ ping 8.8.8.8

Change-Id: I9b4ea3de76dffd98cbab37c4091ad1a7e688dbc2

clatd.h

diff --git a/clatd.h b/clatd.h
index 75ffea3..6907829 100644
--- a/clatd.h
+++ b/clatd.h
@@ -41,7 +41,7 @@
 void configure_tun_ip(const struct tun_data *tunnel, const char *v4_addr, int mtu);
 void set_capability(uint64_t target_cap);
 void drop_root_and_caps();
-void open_sockets(struct tun_data *tunnel, uint32_t mark);
+void open_sockets(struct tun_data *tunnel);
 int ipv6_address_changed(const char *interface);
 int configure_clat_ipv6_address(const struct tun_data *tunnel, const char *interface,
                                 const char *src_addr);