Revision 460fec67 slirp/ip_icmp.c
| b/slirp/ip_icmp.c | ||
|---|---|---|
| 69 | 69 |
register struct icmp *icp; |
| 70 | 70 |
register struct ip *ip=mtod(m, struct ip *); |
| 71 | 71 |
int icmplen=ip->ip_len; |
| 72 |
Slirp *slirp = m->slirp; |
|
| 72 | 73 |
|
| 73 | 74 |
DEBUG_CALL("icmp_input");
|
| 74 | 75 |
DEBUG_ARG("m = %lx", (long )m);
|
| ... | ... | |
| 98 | 99 |
case ICMP_ECHO: |
| 99 | 100 |
icp->icmp_type = ICMP_ECHOREPLY; |
| 100 | 101 |
ip->ip_len += hlen; /* since ip_input subtracts this */ |
| 101 |
if (ip->ip_dst.s_addr == vhost_addr.s_addr) {
|
|
| 102 |
if (ip->ip_dst.s_addr == slirp->vhost_addr.s_addr) {
|
|
| 102 | 103 |
icmp_reflect(m); |
| 103 | 104 |
} else {
|
| 104 | 105 |
struct socket *so; |
| 105 | 106 |
struct sockaddr_in addr; |
| 106 |
if ((so = socreate()) == NULL) goto freeit; |
|
| 107 |
if ((so = socreate(slirp)) == NULL) goto freeit;
|
|
| 107 | 108 |
if(udp_attach(so) == -1) {
|
| 108 | 109 |
DEBUG_MISC((dfd,"icmp_input udp_attach errno = %d-%s\n", |
| 109 | 110 |
errno,strerror(errno))); |
| ... | ... | |
| 122 | 123 |
|
| 123 | 124 |
/* Send the packet */ |
| 124 | 125 |
addr.sin_family = AF_INET; |
| 125 |
if ((so->so_faddr.s_addr & vnetwork_mask.s_addr) == |
|
| 126 |
vnetwork_addr.s_addr) {
|
|
| 126 |
if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
|
|
| 127 |
slirp->vnetwork_addr.s_addr) {
|
|
| 127 | 128 |
/* It's an alias */ |
| 128 |
if (so->so_faddr.s_addr == vnameserver_addr.s_addr) {
|
|
| 129 |
if (so->so_faddr.s_addr == slirp->vnameserver_addr.s_addr) {
|
|
| 129 | 130 |
addr.sin_addr = dns_addr; |
| 130 | 131 |
} else {
|
| 131 | 132 |
addr.sin_addr = loopback_addr; |
| ... | ... | |
| 222 | 223 |
} |
| 223 | 224 |
|
| 224 | 225 |
/* make a copy */ |
| 225 |
if(!(m=m_get())) goto end_error; /* get mbuf */ |
|
| 226 |
m = m_get(msrc->slirp); |
|
| 227 |
if (!m) {
|
|
| 228 |
goto end_error; |
|
| 229 |
} |
|
| 230 |
|
|
| 226 | 231 |
{ int new_m_size;
|
| 227 | 232 |
new_m_size=sizeof(struct ip )+ICMP_MINLEN+msrc->m_len+ICMP_MAXDATALEN; |
| 228 | 233 |
if(new_m_size>m->m_size) m_inc(m, new_m_size); |
| ... | ... | |
| 285 | 290 |
ip->ip_ttl = MAXTTL; |
| 286 | 291 |
ip->ip_p = IPPROTO_ICMP; |
| 287 | 292 |
ip->ip_dst = ip->ip_src; /* ip adresses */ |
| 288 |
ip->ip_src = vhost_addr; |
|
| 293 |
ip->ip_src = m->slirp->vhost_addr;
|
|
| 289 | 294 |
|
| 290 | 295 |
(void ) ip_output((struct socket *)NULL, m); |
| 291 | 296 |
|
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