Mercurial > hg > dhcpcd
changeset 4300:82a8e37ab298 draft
Workaround NetBSD-7 sending an invalid bcast address in RTM_NEWADDR
| author | Roy Marples <roy@marples.name> |
|---|---|
| date | Fri, 17 Aug 2018 17:29:30 +0100 |
| parents | ff2791d0bac1 |
| children | 79099257b0ce |
| files | src/if-bsd.c |
| diffstat | 1 files changed, 23 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/src/if-bsd.c Fri Aug 17 17:21:40 2018 +0100 +++ b/src/if-bsd.c Fri Aug 17 17:29:30 2018 +0100 @@ -1103,9 +1103,32 @@ sin = (const void *)rti_info[RTAX_NETMASK]; mask.s_addr = sin != NULL && sin->sin_family == AF_INET ? sin->sin_addr.s_addr : INADDR_ANY; + +#if defined(__NetBSD_Version__) && __NetBSD_Version__ < 800000000 + /* NetBSD-7 and older send an invalid broadcast address. + * So we need to query the actual address to get + * the right one. */ + { + struct in_aliasreq ifra; + + memset(&ifra, 0, sizeof(ifra)); + strlcpy(ifra.ifra_name, ifp->name, + sizeof(ifra.ifra_name)); + ifra.ifra_addr.sin_family = AF_INET; + ifra.ifra_addr.sin_len = sizeof(ifra.ifra_addr); + ifra.ifra_addr.sin_addr = addr; + if (ioctl(ctx->pf_inet_fd, SIOCGIFALIAS, &ifra) == -1) { + if (errno != EADDRNOTAVAIL) + logerr("%s: SIOCGIFALIAS", __func__); + break; + } + bcast = ifra.ifra_broadaddr.sin_addr; + } +#else sin = (const void *)rti_info[RTAX_BRD]; bcast.s_addr = sin != NULL && sin->sin_family == AF_INET ? sin->sin_addr.s_addr : INADDR_ANY; +#endif #if defined(__FreeBSD__) || defined(__DragonFly__) /* FreeBSD sends RTM_DELADDR for each assigned address