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Use macros for overhead in a consistent way. No functional change.

Browse Source 
Thanks to Irene Ruengeler for suggesting the change.

MFC after: 3 days
This commit is contained in:
tuexen 2015-05-28 17:57:56 +00:00
parent 3f2b4fc770
commit ec768a1460
1 changed files with 17 additions and 14 deletions
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31
sys/netinet/sctp_output.c
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@ -4063,7 +4063,7 @@ sctp_lowlevel_chunk_output(struct sctp_inpcb *inp,
sctp_route_t iproute;
int len;
len = sizeof(struct ip) + sizeof(struct sctphdr);
len = SCTP_MIN_V4_OVERHEAD;
if (port) {
len += sizeof(struct udphdr);
}
@ -4345,7 +4345,7 @@ sctp_lowlevel_chunk_output(struct sctp_inpcb *inp,
flowlabel = ntohl(((struct in6pcb *)inp)->in6p_flowinfo);
}
flowlabel &= 0x000fffff;
len = sizeof(struct ip6_hdr) + sizeof(struct sctphdr);
len = SCTP_MIN_OVERHEAD;
if (port) {
len += sizeof(struct udphdr);
}
@ -5107,10 +5107,11 @@ sctp_arethere_unrecognized_parameters(struct mbuf *in_initpkt,
if (op_err == NULL) {
/* Ok need to try to get a mbuf */
#ifdef INET6
l_len = sizeof(struct ip6_hdr) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_OVERHEAD;
#else
l_len = sizeof(struct ip) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_V4_OVERHEAD;
#endif
l_len += sizeof(struct sctp_chunkhdr);
l_len += plen;
l_len += sizeof(struct sctp_paramhdr);
op_err = sctp_get_mbuf_for_msg(l_len, 0, M_NOWAIT, 1, MT_DATA);
@ -5176,10 +5177,11 @@ sctp_arethere_unrecognized_parameters(struct mbuf *in_initpkt,
/* Ok need to try to get an mbuf */
#ifdef INET6
l_len = sizeof(struct ip6_hdr) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_OVERHEAD;
#else
l_len = sizeof(struct ip) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_V4_OVERHEAD;
#endif
l_len += sizeof(struct sctp_chunkhdr);
l_len += plen;
l_len += sizeof(struct sctp_paramhdr);
op_err = sctp_get_mbuf_for_msg(l_len, 0, M_NOWAIT, 1, MT_DATA);
@ -5251,10 +5253,11 @@ sctp_arethere_unrecognized_parameters(struct mbuf *in_initpkt,
int l_len;
#ifdef INET6
l_len = sizeof(struct ip6_hdr) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_OVERHEAD;
#else
l_len = sizeof(struct ip) + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
l_len = SCTP_MIN_V4_OVERHEAD;
#endif
l_len += sizeof(struct sctp_chunkhdr);
l_len += (2 * sizeof(struct sctp_paramhdr));
op_err = sctp_get_mbuf_for_msg(l_len, 0, M_NOWAIT, 1, MT_DATA);
if (op_err) {
@ -7961,12 +7964,12 @@ sctp_med_chunk_output(struct sctp_inpcb *inp,
switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
#ifdef INET
case AF_INET:
mtu = net->mtu - (sizeof(struct ip) + sizeof(struct sctphdr));
mtu = net->mtu - SCTP_MIN_V4_OVERHEAD;
break;
#endif
#ifdef INET6
case AF_INET6:
mtu = net->mtu - (sizeof(struct ip6_hdr) + sizeof(struct sctphdr));
mtu = net->mtu - SCTP_MIN_OVERHEAD;
break;
#endif
default:
@ -8513,16 +8516,16 @@ sctp_med_chunk_output(struct sctp_inpcb *inp,
switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
#ifdef INET
case AF_INET:
if (net->mtu > (sizeof(struct ip) + sizeof(struct sctphdr)))
omtu = net->mtu - (sizeof(struct ip) + sizeof(struct sctphdr));
if (net->mtu > SCTP_MIN_V4_OVERHEAD)
omtu = net->mtu - SCTP_MIN_V4_OVERHEAD;
else
omtu = 0;
break;
#endif
#ifdef INET6
case AF_INET6:
if (net->mtu > (sizeof(struct ip6_hdr) + sizeof(struct sctphdr)))
omtu = net->mtu - (sizeof(struct ip6_hdr) + sizeof(struct sctphdr));
if (net->mtu > SCTP_MIN_OVERHEAD)
omtu = net->mtu - SCTP_MIN_OVERHEAD;
else
omtu = 0;
break;