The branch main has been updated by melifaro: URL: https://cgit.FreeBSD.org/src/commit/?id=7f5f3fcc32bfa553faa007579dfcaed84be3b047
commit 7f5f3fcc32bfa553faa007579dfcaed84be3b047 Author: Alexander V. Chernikov <[email protected]> AuthorDate: 2021-04-10 15:25:24 +0000 Commit: Alexander V. Chernikov <[email protected]> CommitDate: 2021-04-10 15:31:16 +0000 Fix direct route installation with net/bird. Slighly relax the gateway validation rules imposed by the 2fe5a79425c7, by requiring only first 8 bytes (everyhing before sdl_data to be present in the AF_LINK gateway. Reported by: olivier --- sys/net/rtsock.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 12e485f917c8..c0996d318fb2 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -1381,20 +1381,21 @@ cleanup_xaddrs_gateway(struct rt_addrinfo *info) #endif case AF_LINK: { - struct sockaddr_dl_short *gw_sdl; + struct sockaddr_dl *gw_sdl; - gw_sdl = (struct sockaddr_dl_short *)gw; - if (gw_sdl->sdl_len < sizeof(struct sockaddr_dl_short)) { + size_t sdl_min_len = offsetof(struct sockaddr_dl, sdl_data); + gw_sdl = (struct sockaddr_dl *)gw; + if (gw_sdl->sdl_len < sdl_min_len) { printf("gw sdl_len too small\n"); return (EINVAL); } const struct sockaddr_dl_short sdl = { .sdl_family = AF_LINK, - .sdl_len = sizeof(struct sockaddr_dl_short), + .sdl_len = sdl_min_len, .sdl_index = gw_sdl->sdl_index, }; - *gw_sdl = sdl; + memcpy(gw_sdl, &sdl, sdl_min_len); break; } } _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-main To unsubscribe, send any mail to "[email protected]"
