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BSD: Workaround for direct routes on FreeBSD 13.0

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FreeBSD 13.0 added some safechecks for syscalls, rejecting sockaddrs that
are too small, later versions loosen up the check.
This commit is contained in:
Ondrej Zajicek 2022-12-11 16:28:28 +01:00
parent 937ebf2536
commit 34ebc4e1ba
1 changed files with 4 additions and 0 deletions
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4
sysdep/bsd/krt-sock.c
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@ -190,6 +190,10 @@ static inline void
sockaddr_fill_dl(struct sockaddr_dl *sa, struct iface *ifa) sockaddr_fill_dl(struct sockaddr_dl *sa, struct iface *ifa)
{ {
uint len = OFFSETOF(struct sockaddr_dl, sdl_data); uint len = OFFSETOF(struct sockaddr_dl, sdl_data);
/* Workaround for FreeBSD 13.0 */
len = MAX(len, sizeof(struct sockaddr));
memset(sa, 0, len); memset(sa, 0, len);
sa->sdl_len = len; sa->sdl_len = len;
sa->sdl_family = AF_LINK; sa->sdl_family = AF_LINK;