2 files changed, 0 insertions, 173 deletions
diff --git a/slirp b/slirp
new file mode 160000
+Subproject 59a1b1f165458c2acb7ff0525b543945f741622
diff --git a/slirp/src/udp6.c b/slirp/src/udp6.c
deleted file mode 100644
index bfcc7ec6fa..0000000000
--- a/slirp/src/udp6.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause */
-/*
- * Copyright (c) 2013
- * Guillaume Subiron
- */
-
-#include "slirp.h"
-#include "udp.h"
-#include "dhcpv6.h"
-
-void udp6_input(struct mbuf *m)
-{
-    Slirp *slirp = m->slirp;
-    struct ip6 *ip, save_ip;
-    struct udphdr *uh;
-    int iphlen = sizeof(struct ip6);
-    int len;
-    struct socket *so;
-    struct sockaddr_in6 lhost;
-
-    DEBUG_CALL("udp6_input");
-    DEBUG_ARG("m = %p", m);
-
-    if (slirp->restricted) {
-        goto bad;
-    }
-
-    ip = mtod(m, struct ip6 *);
-    m->m_len -= iphlen;
-    m->m_data += iphlen;
-    uh = mtod(m, struct udphdr *);
-    m->m_len += iphlen;
-    m->m_data -= iphlen;
-
-    if (ip6_cksum(m)) {
-        goto bad;
-    }
-
-    len = ntohs((uint16_t)uh->uh_ulen);
-
-    /*
-     * Make mbuf data length reflect UDP length.
-     * If not enough data to reflect UDP length, drop.
-     */
-    if (ntohs(ip->ip_pl) != len) {
-        if (len > ntohs(ip->ip_pl)) {
-            goto bad;
-        }
-        m_adj(m, len - ntohs(ip->ip_pl));
-        ip->ip_pl = htons(len);
-    }
-
-    /*
-     * Save a copy of the IP header in case we want restore it
-     * for sending an ICMP error message in response.
-     */
-    save_ip = *ip;
-
-    /* Locate pcb for datagram. */
-    lhost.sin6_family = AF_INET6;
-    lhost.sin6_addr = ip->ip_src;
-    lhost.sin6_port = uh->uh_sport;
-
-    /* handle DHCPv6 */
-    if (ntohs(uh->uh_dport) == DHCPV6_SERVER_PORT &&
-        (in6_equal(&ip->ip_dst, &slirp->vhost_addr6) ||
-         in6_dhcp_multicast(&ip->ip_dst))) {
-        m->m_data += iphlen;
-        m->m_len -= iphlen;
-        dhcpv6_input(&lhost, m);
-        m->m_data -= iphlen;
-        m->m_len += iphlen;
-        goto bad;
-    }
-
-    /* handle TFTP */
-    if (ntohs(uh->uh_dport) == TFTP_SERVER &&
-        !memcmp(ip->ip_dst.s6_addr, slirp->vhost_addr6.s6_addr, 16)) {
-        m->m_data += iphlen;
-        m->m_len -= iphlen;
-        tftp_input((struct sockaddr_storage *)&lhost, m);
-        m->m_data -= iphlen;
-        m->m_len += iphlen;
-        goto bad;
-    }
-
-    so = solookup(&slirp->udp_last_so, &slirp->udb,
-                  (struct sockaddr_storage *) &lhost, NULL);
-
-    if (so == NULL) {
-        /* If there's no socket for this packet, create one. */
-        so = socreate(slirp);
-        if (udp_attach(so, AF_INET6) == -1) {
-            DEBUG_MISC(" udp6_attach errno = %d-%s", errno, strerror(errno));
-            sofree(so);
-            goto bad;
-        }
-
-        /* Setup fields */
-        so->so_lfamily = AF_INET6;
-        so->so_laddr6 = ip->ip_src;
-        so->so_lport6 = uh->uh_sport;
-    }
-
-    so->so_ffamily = AF_INET6;
-    so->so_faddr6 = ip->ip_dst; /* XXX */
-    so->so_fport6 = uh->uh_dport; /* XXX */
-
-    iphlen += sizeof(struct udphdr);
-    m->m_len -= iphlen;
-    m->m_data += iphlen;
-
-    /*
-     * Now we sendto() the packet.
-     */
-    if (sosendto(so, m) == -1) {
-        m->m_len += iphlen;
-        m->m_data -= iphlen;
-        *ip = save_ip;
-        DEBUG_MISC("udp tx errno = %d-%s", errno, strerror(errno));
-        icmp6_send_error(m, ICMP6_UNREACH, ICMP6_UNREACH_NO_ROUTE);
-        goto bad;
-    }
-
-    m_free(so->so_m);   /* used for ICMP if error on sorecvfrom */
-
-    /* restore the orig mbuf packet */
-    m->m_len += iphlen;
-    m->m_data -= iphlen;
-    *ip = save_ip;
-    so->so_m = m;
-
-    return;
-bad:
-    m_free(m);
-}
-
-int udp6_output(struct socket *so, struct mbuf *m,
-        struct sockaddr_in6 *saddr, struct sockaddr_in6 *daddr)
-{
-    struct ip6 *ip;
-    struct udphdr *uh;
-
-    DEBUG_CALL("udp6_output");
-    DEBUG_ARG("so = %p", so);
-    DEBUG_ARG("m = %p", m);
-
-    /* adjust for header */
-    m->m_data -= sizeof(struct udphdr);
-    m->m_len += sizeof(struct udphdr);
-    uh = mtod(m, struct udphdr *);
-    m->m_data -= sizeof(struct ip6);
-    m->m_len += sizeof(struct ip6);
-    ip = mtod(m, struct ip6 *);
-
-    /* Build IP header */
-    ip->ip_pl = htons(m->m_len - sizeof(struct ip6));
-    ip->ip_nh = IPPROTO_UDP;
-    ip->ip_src = saddr->sin6_addr;
-    ip->ip_dst = daddr->sin6_addr;
-
-    /* Build UDP header */
-    uh->uh_sport = saddr->sin6_port;
-    uh->uh_dport = daddr->sin6_port;
-    uh->uh_ulen = ip->ip_pl;
-    uh->uh_sum = 0;
-    uh->uh_sum = ip6_cksum(m);
-    if (uh->uh_sum == 0) {
-        uh->uh_sum = 0xffff;
-    }
-
-    return ip6_output(so, m, 0);
-}