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authorJan Kiszka <jan.kiszka@siemens.com>2009-06-24 14:42:29 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-06-29 08:52:46 -0500
commit0d62c4cfe21752df4c1d6e2c2398f15d5eaa794a (patch)
tree17797b80174a0d19f756ca3255b709d3b191cf7a /slirp/udp.c
parent6dbe553fe9ffdee008c1bbbe1af2d030e0f04aab (diff)
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slirp: Drop dead code
After all its years inside the qemu tree, there is no point in keeping the dead code paths of slirp. This patch is a first round of removing usually commented out code parts. More cleanups need to follow (and maybe finally a proper reindention). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'slirp/udp.c')
-rw-r--r--slirp/udp.c28
1 files changed, 3 insertions, 25 deletions
diff --git a/slirp/udp.c b/slirp/udp.c
index 60fe754..3798e34 100644
--- a/slirp/udp.c
+++ b/slirp/udp.c
@@ -50,16 +50,6 @@ struct socket udb;
static u_int8_t udp_tos(struct socket *so);
static void udp_emu(struct socket *so, struct mbuf *m);
-/*
- * UDP protocol implementation.
- * Per RFC 768, August, 1980.
- */
-#ifndef COMPAT_42
-#define UDPCKSUM 1
-#else
-#define UDPCKSUM 0 /* XXX */
-#endif
-
struct socket *udp_last_so = &udb;
void
@@ -76,7 +66,6 @@ udp_input(register struct mbuf *m, int iphlen)
{
register struct ip *ip;
register struct udphdr *uh;
-/* struct mbuf *opts = 0;*/
int len;
struct ip save_ip;
struct socket *so;
@@ -129,14 +118,10 @@ udp_input(register struct mbuf *m, int iphlen)
/*
* Checksum extended UDP header and data.
*/
- if (UDPCKSUM && uh->uh_sum) {
+ if (uh->uh_sum) {
memset(&((struct ipovly *)ip)->ih_mbuf, 0, sizeof(struct mbuf_ptr));
((struct ipovly *)ip)->ih_x1 = 0;
((struct ipovly *)ip)->ih_len = uh->uh_ulen;
- /* keep uh_sum for ICMP reply
- * uh->uh_sum = cksum(m, len + sizeof (struct ip));
- * if (uh->uh_sum) {
- */
if(cksum(m, len + sizeof(struct ip))) {
STAT(udpstat.udps_badsum++);
goto bad;
@@ -201,7 +186,6 @@ udp_input(register struct mbuf *m, int iphlen)
/*
* Setup fields
*/
- /* udp_last_so = so; */
so->so_laddr = ip->ip_src;
so->so_lport = uh->uh_sport;
@@ -246,7 +230,6 @@ udp_input(register struct mbuf *m, int iphlen)
return;
bad:
m_freem(m);
- /* if (opts) m_freem(opts); */
return;
}
@@ -277,7 +260,7 @@ int udp_output2(struct socket *so, struct mbuf *m,
memset(&ui->ui_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr));
ui->ui_x1 = 0;
ui->ui_pr = IPPROTO_UDP;
- ui->ui_len = htons(m->m_len - sizeof(struct ip)); /* + sizeof (struct udphdr)); */
+ ui->ui_len = htons(m->m_len - sizeof(struct ip));
/* XXXXX Check for from-one-location sockets, or from-any-location sockets */
ui->ui_src = saddr->sin_addr;
ui->ui_dst = daddr->sin_addr;
@@ -289,10 +272,8 @@ int udp_output2(struct socket *so, struct mbuf *m,
* Stuff checksum and output datagram.
*/
ui->ui_sum = 0;
- if (UDPCKSUM) {
- if ((ui->ui_sum = cksum(m, /* sizeof (struct udpiphdr) + */ m->m_len)) == 0)
+ if ((ui->ui_sum = cksum(m, m->m_len)) == 0)
ui->ui_sum = 0xffff;
- }
((struct ip *)ui)->ip_len = m->m_len;
((struct ip *)ui)->ip_ttl = IPDEFTTL;
@@ -363,8 +344,6 @@ void
udp_detach(struct socket *so)
{
closesocket(so->s);
- /* if (so->so_m) m_free(so->so_m); done by sofree */
-
sofree(so);
}
@@ -651,7 +630,6 @@ udp_listen(u_int32_t haddr, u_int hport, u_int32_t laddr, u_int lport,
return NULL;
}
setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
-/* setsockopt(so->s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int)); */
getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
so->so_fport = addr.sin_port;