From 29f24e5cc059ed37117126838045f85b494fc288 Mon Sep 17 00:00:00 2001 From: Andreas Schneider Date: Mon, 26 May 2014 11:00:09 +0200 Subject: swrap: Implement support for IP_RECVDSTADDR on BSD. Pair-Programmed-With: Michael Adam Signed-off-by: Andreas Schneider Signed-off-by: Michael Adam --- src/socket_wrapper.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c index 56d1d96..7a0b63c 100644 --- a/src/socket_wrapper.c +++ b/src/socket_wrapper.c @@ -125,6 +125,18 @@ enum swrap_dbglvl_e { # endif /* IPV6_RECVPKTINFO */ #endif /* IPV6_PKTINFO */ +/* + * On BSD IP_PKTINFO has a different name because during + * the time when they implemented it, there was no RFC. + * The name for IPv6 is the same as on Linux. + */ +#ifndef IP_PKTINFO +# ifdef IP_RECVDSTADDR +# define IP_PKTINFO IP_RECVDSTADDR +# endif +#endif + + #define SWRAP_DLIST_ADD(list,item) do { \ if (!(list)) { \ (item)->prev = NULL; \ @@ -3053,10 +3065,15 @@ static int swrap_msghdr_add_pktinfo(struct socket_info *si, { /* Add packet info */ switch (si->pktinfo) { -#if defined(IP_PKTINFO) && defined(HAVE_STRUCT_IN_PKTINFO) +#if defined(IP_PKTINFO) +/* && (defined(HAVE_STRUCT_IN_PKTINFO) || defined(IP_RECVDSTADDR)) */ case AF_INET: { struct sockaddr_in *sin; +#if defined(HAVE_STRUCT_IN_PKTINFO) struct in_pktinfo pkt; +#elif defined(IP_RECVDSTADDR) + struct in_addr pkt; +#endif if (si->bindname_len == sizeof(struct sockaddr_in)) { sin = (struct sockaddr_in*)si->bindname; @@ -3069,8 +3086,12 @@ static int swrap_msghdr_add_pktinfo(struct socket_info *si, ZERO_STRUCT(pkt); +#if defined(HAVE_STRUCT_IN_PKTINFO) pkt.ipi_ifindex = socket_wrapper_default_iface(); pkt.ipi_addr.s_addr = sin->sin_addr.s_addr; +#elif defined(IP_RECVDSTADDR) + pkt = sin->sin_addr; +#endif swrap_msghdr_add_cmsghdr(msg, IPPROTO_IP, IP_PKTINFO, &pkt, sizeof(pkt)); -- cgit