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handle both IP_PKTINFO and IP_RECVIF defined.

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fixes #391
This commit is contained in:
Thomas Bernard 2019-09-24 12:25:51 +02:00
parent 8cb006c538
commit 1976452125
1 changed files with 14 additions and 30 deletions
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44
miniupnpd/minissdp.c
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@ -205,8 +205,7 @@ OpenAndConfSSDPReceiveSocket(int ipv6)
syslog(LOG_WARNING, "setsockopt(udp, IP_RECVIF): %m");
}
}
#endif /* IP_RECVIF */
#ifdef IP_PKTINFO
#elif defined(IP_PKTINFO) /* IP_RECVIF */
/* Linux */
if(!ipv6) {
if(setsockopt(s, IPPROTO_IP, IP_PKTINFO, &on, sizeof(on)) < 0)
@ -867,24 +866,12 @@ ProcessSSDPRequest(int s, unsigned short http_port)
struct sockaddr_in sendername;
#endif
int source_ifindex = -1;
#ifdef IP_PKTINFO
char cmbuf[CMSG_SPACE(sizeof(struct in_pktinfo))];
struct iovec iovec = {
.iov_base = bufr,
.iov_len = sizeof(bufr)
};
struct msghdr mh = {
.msg_name = &sendername,
.msg_namelen = sizeof(sendername),
.msg_iov = &iovec,
.msg_iovlen = 1,
.msg_control = cmbuf,
.msg_controllen = sizeof(cmbuf)
};
struct cmsghdr *cmptr;
#endif /* IP_PKTINFO */
#if defined(IP_RECVIF) || defined(IP_PKTINFO)
#ifdef IP_RECVIF
char cmbuf[CMSG_SPACE(sizeof(struct sockaddr_dl))];
#else /* IP_PKTINFO */
char cmbuf[CMSG_SPACE(sizeof(struct in_pktinfo))];
#endif
struct iovec iovec = {
.iov_base = bufr,
.iov_len = sizeof(bufr)
@ -898,9 +885,7 @@ ProcessSSDPRequest(int s, unsigned short http_port)
.msg_controllen = sizeof(cmbuf)
};
struct cmsghdr *cmptr;
#endif /* IP_RECVIF */
#if defined(IP_RECVIF) || defined(IP_PKTINFO)
n = recvmsg(s, &mh, 0);
#else
socklen_t len_r;
@ -925,7 +910,15 @@ ProcessSSDPRequest(int s, unsigned short http_port)
for(cmptr = CMSG_FIRSTHDR(&mh); cmptr != NULL; cmptr = CMSG_NXTHDR(&mh, cmptr))
{
syslog(LOG_DEBUG, "level=%d type=%d", cmptr->cmsg_level, cmptr->cmsg_type);
#ifdef IP_PKTINFO
#ifdef IP_RECVIF
if(cmptr->cmsg_level == IPPROTO_IP && cmptr->cmsg_type == IP_RECVIF)
{
struct sockaddr_dl *sdl; /* fields : len, family, index, type, nlen, alen, slen, data */
sdl = (struct sockaddr_dl *)CMSG_DATA(cmptr);
syslog(LOG_DEBUG, "sdl_index = %d %s", sdl->sdl_index, link_ntoa(sdl));
source_ifindex = sdl->sdl_index;
}
#elif defined(IP_PKTINFO) /* IP_RECVIF */
if(cmptr->cmsg_level == IPPROTO_IP && cmptr->cmsg_type == IP_PKTINFO)
{
struct in_pktinfo * pi; /* fields : ifindex, spec_dst, addr */
@ -943,15 +936,6 @@ ProcessSSDPRequest(int s, unsigned short http_port)
source_ifindex = pi6->ipi6_ifindex;
}
#endif /* defined(ENABLE_IPV6) && defined(IPV6_RECVPKTINFO) */
#ifdef IP_RECVIF
if(cmptr->cmsg_level == IPPROTO_IP && cmptr->cmsg_type == IP_RECVIF)
{
struct sockaddr_dl *sdl; /* fields : len, family, index, type, nlen, alen, slen, data */
sdl = (struct sockaddr_dl *)CMSG_DATA(cmptr);
syslog(LOG_DEBUG, "sdl_index = %d %s", sdl->sdl_index, link_ntoa(sdl));
source_ifindex = sdl->sdl_index;
}
#endif /* IP_RECVIF */
}
#endif /* defined(IP_RECVIF) || defined(IP_PKTINFO) */
#ifdef ENABLE_HTTPS