diff options
Diffstat (limited to 'slirp/ip_output.c')
| -rw-r--r-- | slirp/ip_output.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/slirp/ip_output.c b/slirp/ip_output.c index b1a848402..a8a6067bd 100644 --- a/slirp/ip_output.c +++ b/slirp/ip_output.c @@ -46,6 +46,10 @@ u_int16_t ip_id; +/* Number of packets queued before we start sending + * (to prevent allocing too many mbufs) */ +#define IF_THRESH 10 + /* * IP output. The packet in mbuf chain m contains a skeletal IP * header (with len, off, ttl, proto, tos, src, dst). @@ -80,14 +84,14 @@ ip_output(so, m0) ip->ip_off &= IP_DF; ip->ip_id = htons(ip_id++); ip->ip_hl = hlen >> 2; - ipstat.ips_localout++; + STAT(ipstat.ips_localout++); /* * Verify that we have any chance at all of being able to queue * the packet or packet fragments */ /* XXX Hmmm... */ -/* if (if_queued > if_thresh && towrite <= 0) { +/* if (if_queued > IF_THRESH && towrite <= 0) { * error = ENOBUFS; * goto bad; * } @@ -96,7 +100,7 @@ ip_output(so, m0) /* * If small enough for interface, can just send directly. */ - if ((u_int16_t)ip->ip_len <= if_mtu) { + if ((u_int16_t)ip->ip_len <= IF_MTU) { ip->ip_len = htons((u_int16_t)ip->ip_len); ip->ip_off = htons((u_int16_t)ip->ip_off); ip->ip_sum = 0; @@ -112,11 +116,11 @@ ip_output(so, m0) */ if (ip->ip_off & IP_DF) { error = -1; - ipstat.ips_cantfrag++; + STAT(ipstat.ips_cantfrag++); goto bad; } - len = (if_mtu - hlen) &~ 7; /* ip databytes per packet */ + len = (IF_MTU - hlen) &~ 7; /* ip databytes per packet */ if (len < 8) { error = -1; goto bad; @@ -137,10 +141,10 @@ ip_output(so, m0) m = m_get(); if (m == 0) { error = -1; - ipstat.ips_odropped++; + STAT(ipstat.ips_odropped++); goto sendorfree; } - m->m_data += if_maxlinkhdr; + m->m_data += IF_MAXLINKHDR; mhip = mtod(m, struct ip *); *mhip = *ip; @@ -170,7 +174,7 @@ ip_output(so, m0) mhip->ip_sum = cksum(m, mhlen); *mnext = m; mnext = &m->m_nextpkt; - ipstat.ips_ofragments++; + STAT(ipstat.ips_ofragments++); } /* * Update first fragment by trimming what's been copied out @@ -193,7 +197,7 @@ sendorfree: } if (error == 0) - ipstat.ips_fragmented++; + STAT(ipstat.ips_fragmented++); } done: |