The branch main has been updated by dteske: URL: https://cgit.FreeBSD.org/src/commit/?id=34718e01869b9ce0baf9c859fafe9d54f785464f
commit 34718e01869b9ce0baf9c859fafe9d54f785464f Author: Devin Teske <[email protected]> AuthorDate: 2026-08-11 17:29:53 +0000 Commit: Devin Teske <[email protected]> CommitDate: 2026-08-11 17:29:53 +0000 linuxulator: map IFF_LOWER_UP through NETLINK_ROUTE for Linux apps rtnl_if_flags_to_linux() translated the usual IFF_* bits but dropped FreeBSD's IFF_LOWER_UP (IFF_NETLINK_1). Chromium's AddressTrackerLinux only treats a link as online when ifi_flags has UP|LOWER_UP|RUNNING; with LOWER_UP missing, online_links stays empty, ConnectionType is CONNECTION_NONE, and navigator.onLine is false even though TCP/HTTPS work. Linux Chromium under the Linuxulator (e.g. www/linux-brave) then shows a spurious Offline UI; sites that ignore navigator.onLine do not. Native www/chromium is on a different notifier path. Map IFF_LOWER_UP to Linux's IFF_LOWER_UP (1<<16) and define LINUX_IFF_LOWER_UP alongside the existing LINUX_IFF_* constants. PR: 297424 Reviewed by: pouria, adrian (previous revision) Differential Revision: https://reviews.freebsd.org/D58774 --- sys/compat/linux/linux.h | 3 +++ sys/compat/linux/linux_netlink.c | 5 ++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/sys/compat/linux/linux.h b/sys/compat/linux/linux.h index a9f753cd55b7..0c46860a6b36 100644 --- a/sys/compat/linux/linux.h +++ b/sys/compat/linux/linux.h @@ -124,6 +124,9 @@ struct l_sockaddr { #define LINUX_IFF_PORTSEL 0x2000 #define LINUX_IFF_AUTOMEDIA 0x4000 #define LINUX_IFF_DYNAMIC 0x8000 +/* Volatile (netlink / ifinfomsg); not representable in ifr_flags short */ +#define LINUX_IFF_LOWER_UP 0x10000 +#define LINUX_IFF_DORMANT 0x20000 /* sigaltstack */ #define LINUX_SS_ONSTACK 1 diff --git a/sys/compat/linux/linux_netlink.c b/sys/compat/linux/linux_netlink.c index 256f188385ce..8c1659cb1dd8 100644 --- a/sys/compat/linux/linux_netlink.c +++ b/sys/compat/linux/linux_netlink.c @@ -342,8 +342,11 @@ rtnl_if_flags_to_linux(unsigned int if_flags) case IFF_DYING: /* No Linux analogue */ break; + case IFF_LOWER_UP: /* IFF_NETLINK_1 */ + result |= LINUX_IFF_LOWER_UP; + break; case IFF_MULTICAST: - result |= 1 << 12; + result |= LINUX_IFF_MULTICAST; } } return (result);
