#include "qemu-common.h"
#include "qemu/timer.h"
#include "qemu/error-report.h"
-#include "sysemu/char.h"
+#include "chardev/char-fe.h"
+#include "migration/register.h"
#include "slirp.h"
#include "hw/hw.h"
#include "qemu/cutils.h"
#include <net/if.h>
#endif
+int slirp_debug;
+
+/* Define to 1 if you want KEEPALIVE timers */
+bool slirp_do_keepalive;
+
/* host loopback address */
struct in_addr loopback_addr;
/* host loopback network mask */
u_int curtime;
-static QTAILQ_HEAD(slirp_instances, Slirp) slirp_instances =
+static QTAILQ_HEAD(, Slirp) slirp_instances =
QTAILQ_HEAD_INITIALIZER(slirp_instances);
static struct in_addr dns_addr;
if (!f)
return -1;
-#ifdef DEBUG
- fprintf(stderr, "IP address of your DNS(s): ");
-#endif
+ DEBUG_MISC("IP address of your DNS(s): ");
while (fgets(buff, 512, f) != NULL) {
if (sscanf(buff, "nameserver%*[ \t]%256s", buff2) == 1) {
char *c = strchr(buff2, '%');
*scope_id = if_index;
}
*cached_time = curtime;
+ } else {
+ DEBUG_MISC(", ");
}
-#ifdef DEBUG
- else
- fprintf(stderr, ", ");
-#endif
+
if (++found > 3) {
-#ifdef DEBUG
- fprintf(stderr, "(more)");
-#endif
+ DEBUG_MISC("(more)");
break;
- }
-#ifdef DEBUG
- else {
+ } else if (slirp_debug & DBG_MISC) {
char s[INET6_ADDRSTRLEN];
const char *res = inet_ntop(af, tmp_addr, s, sizeof(s));
if (!res) {
res = "(string conversion error)";
}
- fprintf(stderr, "%s", res);
+ DEBUG_MISC("%s", res);
}
-#endif
}
}
fclose(f);
static void slirp_init_once(void)
{
static int initialized;
+ const char *debug;
#ifdef _WIN32
WSADATA Data;
#endif
loopback_addr.s_addr = htonl(INADDR_LOOPBACK);
loopback_mask = htonl(IN_CLASSA_NET);
+
+ debug = g_getenv("SLIRP_DEBUG");
+ if (debug) {
+ const GDebugKey keys[] = {
+ { "call", DBG_CALL },
+ { "misc", DBG_MISC },
+ { "error", DBG_ERROR },
+ };
+ slirp_debug = g_parse_debug_string(debug, keys, G_N_ELEMENTS(keys));
+ }
+
+
}
static void slirp_state_save(QEMUFile *f, void *opaque);
static int slirp_state_load(QEMUFile *f, void *opaque, int version_id);
+static SaveVMHandlers savevm_slirp_state = {
+ .save_state = slirp_state_save,
+ .load_state = slirp_state_load,
+};
+
Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork,
struct in_addr vnetmask, struct in_addr vhost,
bool in6_enabled,
struct in6_addr vprefix_addr6, uint8_t vprefix_len,
struct in6_addr vhost6, const char *vhostname,
+ const char *tftp_server_name,
const char *tftp_path, const char *bootfile,
struct in_addr vdhcp_start, struct in_addr vnameserver,
struct in6_addr vnameserver6, const char **vdnssearch,
+ const char *vdomainname,
+ const SlirpCb *callbacks,
void *opaque)
{
Slirp *slirp = g_malloc0(sizeof(Slirp));
slirp_init_once();
+ slirp->cb = callbacks;
slirp->grand = g_rand_new();
slirp->restricted = restricted;
}
slirp->tftp_prefix = g_strdup(tftp_path);
slirp->bootp_filename = g_strdup(bootfile);
+ slirp->vdomainname = g_strdup(vdomainname);
slirp->vdhcp_startaddr = vdhcp_start;
slirp->vnameserver_addr = vnameserver;
slirp->vnameserver_addr6 = vnameserver6;
+ slirp->tftp_server_name = g_strdup(tftp_server_name);
if (vdnssearch) {
translate_dnssearch(slirp, vdnssearch);
slirp->opaque = opaque;
- register_savevm(NULL, "slirp", 0, 4,
- slirp_state_save, slirp_state_load, slirp);
+ register_savevm_live(NULL, "slirp", 0, 4, &savevm_slirp_state, slirp);
QTAILQ_INSERT_TAIL(&slirp_instances, slirp, entry);
void slirp_cleanup(Slirp *slirp)
{
+ struct gfwd_list *e, *next;
+
+ for (e = slirp->guestfwd_list; e; e = next) {
+ next = e->ex_next;
+ g_free(e->ex_exec);
+ g_free(e);
+ }
+
QTAILQ_REMOVE(&slirp_instances, slirp, entry);
unregister_savevm(NULL, "slirp", slirp);
g_free(slirp->vdnssearch);
g_free(slirp->tftp_prefix);
g_free(slirp->bootp_filename);
+ g_free(slirp->vdomainname);
g_free(slirp);
}
void slirp_pollfds_poll(GArray *pollfds, int select_error)
{
- Slirp *slirp;
+ Slirp *slirp = QTAILQ_FIRST(&slirp_instances);
struct socket *so, *so_next;
int ret;
- if (QTAILQ_EMPTY(&slirp_instances)) {
+ if (!slirp) {
return;
}
- curtime = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
+ curtime = slirp->cb->clock_get_ns() / SCALE_MS;
QTAILQ_FOREACH(slirp, &slirp_instances, entry) {
/*
/* continue; */
} else {
ret = sowrite(so);
- }
- /*
- * XXXXX If we wrote something (a lot), there
- * could be a need for a window update.
- * In the worst case, the remote will send
- * a window probe to get things going again
- */
- }
-
- /*
- * Probe a still-connecting, non-blocking socket
- * to check if it's still alive
- */
-#ifdef PROBE_CONN
- if (so->so_state & SS_ISFCONNECTING) {
- ret = qemu_recv(so->s, &ret, 0, 0);
-
- if (ret < 0) {
- /* XXX */
- if (errno == EAGAIN || errno == EWOULDBLOCK ||
- errno == EINPROGRESS || errno == ENOTCONN) {
- continue; /* Still connecting, continue */
+ if (ret > 0) {
+ /* Call tcp_output in case we need to send a window
+ * update to the guest, otherwise it will be stuck
+ * until it sends a window probe. */
+ tcp_output(sototcpcb(so));
}
-
- /* else failed */
- so->so_state &= SS_PERSISTENT_MASK;
- so->so_state |= SS_NOFDREF;
-
- /* tcp_input will take care of it */
- } else {
- ret = send(so->s, &ret, 0, 0);
- if (ret < 0) {
- /* XXX */
- if (errno == EAGAIN || errno == EWOULDBLOCK ||
- errno == EINPROGRESS || errno == ENOTCONN) {
- continue;
- }
- /* else failed */
- so->so_state &= SS_PERSISTENT_MASK;
- so->so_state |= SS_NOFDREF;
- } else {
- so->so_state &= ~SS_ISFCONNECTING;
- }
-
}
- tcp_input((struct mbuf *)NULL, sizeof(struct ip), so,
- so->so_ffamily);
- } /* SS_ISFCONNECTING */
-#endif
+ }
}
/*
struct ethhdr *reh = (struct ethhdr *)arp_reply;
struct slirp_arphdr *rah = (struct slirp_arphdr *)(arp_reply + ETH_HLEN);
int ar_op;
- struct ex_list *ex_ptr;
+ struct gfwd_list *ex_ptr;
if (!slirp->in_enabled) {
return;
if (ah->ar_tip == slirp->vnameserver_addr.s_addr ||
ah->ar_tip == slirp->vhost_addr.s_addr)
goto arp_ok;
- for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
+ for (ex_ptr = slirp->guestfwd_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
if (ex_ptr->ex_addr.s_addr == ah->ar_tip)
goto arp_ok;
}
rah->ar_sip = ah->ar_tip;
memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN);
rah->ar_tip = ah->ar_sip;
- slirp_output(slirp->opaque, arp_reply, sizeof(arp_reply));
+ slirp->cb->output(slirp->opaque, arp_reply, sizeof(arp_reply));
}
break;
case ARPOP_REPLY:
/* target IP */
rah->ar_tip = iph->ip_dst.s_addr;
slirp->client_ipaddr = iph->ip_dst;
- slirp_output(slirp->opaque, arp_req, sizeof(arp_req));
+ slirp->cb->output(slirp->opaque, arp_req, sizeof(arp_req));
ifm->resolution_requested = true;
/* Expire request and drop outgoing packet after 1 second */
- ifm->expiration_date = qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + 1000000000ULL;
+ ifm->expiration_date = slirp->cb->clock_get_ns() + 1000000000ULL;
}
return 0;
} else {
if (!ifm->resolution_requested) {
ndp_send_ns(slirp, ip6h->ip_dst);
ifm->resolution_requested = true;
- ifm->expiration_date =
- qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + 1000000000ULL;
+ ifm->expiration_date = slirp->cb->clock_get_ns() + 1000000000ULL;
}
return 0;
} else {
}
memcpy(eh->h_dest, ethaddr, ETH_ALEN);
- DEBUG_ARGS((dfd, " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
- eh->h_source[0], eh->h_source[1], eh->h_source[2],
- eh->h_source[3], eh->h_source[4], eh->h_source[5]));
- DEBUG_ARGS((dfd, " dst = %02x:%02x:%02x:%02x:%02x:%02x\n",
- eh->h_dest[0], eh->h_dest[1], eh->h_dest[2],
- eh->h_dest[3], eh->h_dest[4], eh->h_dest[5]));
+ DEBUG_ARG("src = %02x:%02x:%02x:%02x:%02x:%02x",
+ eh->h_source[0], eh->h_source[1], eh->h_source[2],
+ eh->h_source[3], eh->h_source[4], eh->h_source[5]);
+ DEBUG_ARG("dst = %02x:%02x:%02x:%02x:%02x:%02x",
+ eh->h_dest[0], eh->h_dest[1], eh->h_dest[2],
+ eh->h_dest[3], eh->h_dest[4], eh->h_dest[5]);
memcpy(buf + sizeof(struct ethhdr), ifm->m_data, ifm->m_len);
- slirp_output(slirp->opaque, buf, ifm->m_len + ETH_HLEN);
+ slirp->cb->output(slirp->opaque, buf, ifm->m_len + ETH_HLEN);
return 1;
}
return 0;
}
-int slirp_add_exec(Slirp *slirp, int do_pty, const void *args,
- struct in_addr *guest_addr, int guest_port)
+static bool
+check_guestfwd(Slirp *slirp, struct in_addr *guest_addr, int guest_port)
{
+ struct gfwd_list *tmp_ptr;
+
if (!guest_addr->s_addr) {
guest_addr->s_addr = slirp->vnetwork_addr.s_addr |
(htonl(0x0204) & ~slirp->vnetwork_mask.s_addr);
slirp->vnetwork_addr.s_addr ||
guest_addr->s_addr == slirp->vhost_addr.s_addr ||
guest_addr->s_addr == slirp->vnameserver_addr.s_addr) {
+ return false;
+ }
+
+ /* check if the port is "bound" */
+ for (tmp_ptr = slirp->guestfwd_list; tmp_ptr; tmp_ptr = tmp_ptr->ex_next) {
+ if (guest_port == tmp_ptr->ex_fport &&
+ guest_addr->s_addr == tmp_ptr->ex_addr.s_addr)
+ return false;
+ }
+
+ return true;
+}
+
+int slirp_add_exec(Slirp *slirp, void *chardev, const char *cmdline,
+ struct in_addr *guest_addr, int guest_port)
+{
+ if (!check_guestfwd(slirp, guest_addr, guest_port)) {
return -1;
}
- return add_exec(&slirp->exec_list, do_pty, (char *)args, *guest_addr,
+
+ return add_exec(&slirp->guestfwd_list, chardev, cmdline, *guest_addr,
htons(guest_port));
}
ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags)
{
- if (so->s == -1 && so->extra) {
+ if (so->s == -1 && so->chardev) {
/* XXX this blocks entire thread. Rewrite to use
* qemu_chr_fe_write and background I/O callbacks */
- qemu_chr_fe_write_all(so->extra, buf, len);
+ qemu_chr_fe_write_all(so->chardev, buf, len);
return len;
}
+ if (so->s == -1) {
+ /*
+ * This should in theory not happen but it is hard to be
+ * sure because some code paths will end up with so->s == -1
+ * on a failure but don't dispose of the struct socket.
+ * Check specifically, so we don't pass -1 to send().
+ */
+ errno = EBADF;
+ return -1;
+ }
+
return send(so->s, buf, len, flags);
}
tcp_output(sototcpcb(so));
}
-static void slirp_tcp_save(QEMUFile *f, struct tcpcb *tp)
+static int slirp_tcp_post_load(void *opaque, int version)
{
- int i;
-
- qemu_put_sbe16(f, tp->t_state);
- for (i = 0; i < TCPT_NTIMERS; i++)
- qemu_put_sbe16(f, tp->t_timer[i]);
- qemu_put_sbe16(f, tp->t_rxtshift);
- qemu_put_sbe16(f, tp->t_rxtcur);
- qemu_put_sbe16(f, tp->t_dupacks);
- qemu_put_be16(f, tp->t_maxseg);
- qemu_put_sbyte(f, tp->t_force);
- qemu_put_be16(f, tp->t_flags);
- qemu_put_be32(f, tp->snd_una);
- qemu_put_be32(f, tp->snd_nxt);
- qemu_put_be32(f, tp->snd_up);
- qemu_put_be32(f, tp->snd_wl1);
- qemu_put_be32(f, tp->snd_wl2);
- qemu_put_be32(f, tp->iss);
- qemu_put_be32(f, tp->snd_wnd);
- qemu_put_be32(f, tp->rcv_wnd);
- qemu_put_be32(f, tp->rcv_nxt);
- qemu_put_be32(f, tp->rcv_up);
- qemu_put_be32(f, tp->irs);
- qemu_put_be32(f, tp->rcv_adv);
- qemu_put_be32(f, tp->snd_max);
- qemu_put_be32(f, tp->snd_cwnd);
- qemu_put_be32(f, tp->snd_ssthresh);
- qemu_put_sbe16(f, tp->t_idle);
- qemu_put_sbe16(f, tp->t_rtt);
- qemu_put_be32(f, tp->t_rtseq);
- qemu_put_sbe16(f, tp->t_srtt);
- qemu_put_sbe16(f, tp->t_rttvar);
- qemu_put_be16(f, tp->t_rttmin);
- qemu_put_be32(f, tp->max_sndwnd);
- qemu_put_byte(f, tp->t_oobflags);
- qemu_put_byte(f, tp->t_iobc);
- qemu_put_sbe16(f, tp->t_softerror);
- qemu_put_byte(f, tp->snd_scale);
- qemu_put_byte(f, tp->rcv_scale);
- qemu_put_byte(f, tp->request_r_scale);
- qemu_put_byte(f, tp->requested_s_scale);
- qemu_put_be32(f, tp->ts_recent);
- qemu_put_be32(f, tp->ts_recent_age);
- qemu_put_be32(f, tp->last_ack_sent);
+ tcp_template((struct tcpcb *)opaque);
+
+ return 0;
}
-static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf)
+static const VMStateDescription vmstate_slirp_tcp = {
+ .name = "slirp-tcp",
+ .version_id = 0,
+ .post_load = slirp_tcp_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT16(t_state, struct tcpcb),
+ VMSTATE_INT16_ARRAY(t_timer, struct tcpcb, TCPT_NTIMERS),
+ VMSTATE_INT16(t_rxtshift, struct tcpcb),
+ VMSTATE_INT16(t_rxtcur, struct tcpcb),
+ VMSTATE_INT16(t_dupacks, struct tcpcb),
+ VMSTATE_UINT16(t_maxseg, struct tcpcb),
+ VMSTATE_UINT8(t_force, struct tcpcb),
+ VMSTATE_UINT16(t_flags, struct tcpcb),
+ VMSTATE_UINT32(snd_una, struct tcpcb),
+ VMSTATE_UINT32(snd_nxt, struct tcpcb),
+ VMSTATE_UINT32(snd_up, struct tcpcb),
+ VMSTATE_UINT32(snd_wl1, struct tcpcb),
+ VMSTATE_UINT32(snd_wl2, struct tcpcb),
+ VMSTATE_UINT32(iss, struct tcpcb),
+ VMSTATE_UINT32(snd_wnd, struct tcpcb),
+ VMSTATE_UINT32(rcv_wnd, struct tcpcb),
+ VMSTATE_UINT32(rcv_nxt, struct tcpcb),
+ VMSTATE_UINT32(rcv_up, struct tcpcb),
+ VMSTATE_UINT32(irs, struct tcpcb),
+ VMSTATE_UINT32(rcv_adv, struct tcpcb),
+ VMSTATE_UINT32(snd_max, struct tcpcb),
+ VMSTATE_UINT32(snd_cwnd, struct tcpcb),
+ VMSTATE_UINT32(snd_ssthresh, struct tcpcb),
+ VMSTATE_INT16(t_idle, struct tcpcb),
+ VMSTATE_INT16(t_rtt, struct tcpcb),
+ VMSTATE_UINT32(t_rtseq, struct tcpcb),
+ VMSTATE_INT16(t_srtt, struct tcpcb),
+ VMSTATE_INT16(t_rttvar, struct tcpcb),
+ VMSTATE_UINT16(t_rttmin, struct tcpcb),
+ VMSTATE_UINT32(max_sndwnd, struct tcpcb),
+ VMSTATE_UINT8(t_oobflags, struct tcpcb),
+ VMSTATE_UINT8(t_iobc, struct tcpcb),
+ VMSTATE_INT16(t_softerror, struct tcpcb),
+ VMSTATE_UINT8(snd_scale, struct tcpcb),
+ VMSTATE_UINT8(rcv_scale, struct tcpcb),
+ VMSTATE_UINT8(request_r_scale, struct tcpcb),
+ VMSTATE_UINT8(requested_s_scale, struct tcpcb),
+ VMSTATE_UINT32(ts_recent, struct tcpcb),
+ VMSTATE_UINT32(ts_recent_age, struct tcpcb),
+ VMSTATE_UINT32(last_ack_sent, struct tcpcb),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+/* The sbuf has a pair of pointers that are migrated as offsets;
+ * we calculate the offsets and restore the pointers using
+ * pre_save/post_load on a tmp structure.
+ */
+struct sbuf_tmp {
+ struct sbuf *parent;
+ uint32_t roff, woff;
+};
+
+static int sbuf_tmp_pre_save(void *opaque)
{
- uint32_t off;
-
- qemu_put_be32(f, sbuf->sb_cc);
- qemu_put_be32(f, sbuf->sb_datalen);
- off = (uint32_t)(sbuf->sb_wptr - sbuf->sb_data);
- qemu_put_sbe32(f, off);
- off = (uint32_t)(sbuf->sb_rptr - sbuf->sb_data);
- qemu_put_sbe32(f, off);
- qemu_put_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen);
+ struct sbuf_tmp *tmp = opaque;
+ tmp->woff = tmp->parent->sb_wptr - tmp->parent->sb_data;
+ tmp->roff = tmp->parent->sb_rptr - tmp->parent->sb_data;
+
+ return 0;
}
-static void slirp_socket_save(QEMUFile *f, struct socket *so)
+static int sbuf_tmp_post_load(void *opaque, int version)
{
- qemu_put_be32(f, so->so_urgc);
- qemu_put_be16(f, so->so_ffamily);
- switch (so->so_ffamily) {
- case AF_INET:
- qemu_put_be32(f, so->so_faddr.s_addr);
- qemu_put_be16(f, so->so_fport);
- break;
- default:
- error_report("so_ffamily unknown, unable to save so_faddr and"
- " so_fport");
+ struct sbuf_tmp *tmp = opaque;
+ uint32_t requested_len = tmp->parent->sb_datalen;
+
+ /* Allocate the buffer space used by the field after the tmp */
+ sbreserve(tmp->parent, tmp->parent->sb_datalen);
+
+ if (tmp->parent->sb_datalen != requested_len) {
+ return -ENOMEM;
}
- qemu_put_be16(f, so->so_lfamily);
- switch (so->so_lfamily) {
- case AF_INET:
- qemu_put_be32(f, so->so_laddr.s_addr);
- qemu_put_be16(f, so->so_lport);
- break;
- default:
- error_report("so_ffamily unknown, unable to save so_laddr and"
- " so_lport");
+ if (tmp->woff >= requested_len ||
+ tmp->roff >= requested_len) {
+ g_critical("invalid sbuf offsets r/w=%u/%u len=%u",
+ tmp->roff, tmp->woff, requested_len);
+ return -EINVAL;
}
- qemu_put_byte(f, so->so_iptos);
- qemu_put_byte(f, so->so_emu);
- qemu_put_byte(f, so->so_type);
- qemu_put_be32(f, so->so_state);
- slirp_sbuf_save(f, &so->so_rcv);
- slirp_sbuf_save(f, &so->so_snd);
- slirp_tcp_save(f, so->so_tcpcb);
-}
-static void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
-{
- int i;
+ tmp->parent->sb_wptr = tmp->parent->sb_data + tmp->woff;
+ tmp->parent->sb_rptr = tmp->parent->sb_data + tmp->roff;
- for (i = 0; i < NB_BOOTP_CLIENTS; i++) {
- qemu_put_be16(f, slirp->bootp_clients[i].allocated);
- qemu_put_buffer(f, slirp->bootp_clients[i].macaddr, 6);
- }
+ return 0;
}
-static void slirp_state_save(QEMUFile *f, void *opaque)
-{
- Slirp *slirp = opaque;
- struct ex_list *ex_ptr;
-
- for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
- if (ex_ptr->ex_pty == 3) {
- struct socket *so;
- so = slirp_find_ctl_socket(slirp, ex_ptr->ex_addr,
- ntohs(ex_ptr->ex_fport));
- if (!so)
- continue;
- qemu_put_byte(f, 42);
- slirp_socket_save(f, so);
- }
- qemu_put_byte(f, 0);
+static const VMStateDescription vmstate_slirp_sbuf_tmp = {
+ .name = "slirp-sbuf-tmp",
+ .post_load = sbuf_tmp_post_load,
+ .pre_save = sbuf_tmp_pre_save,
+ .version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(woff, struct sbuf_tmp),
+ VMSTATE_UINT32(roff, struct sbuf_tmp),
+ VMSTATE_END_OF_LIST()
+ }
+};
- qemu_put_be16(f, slirp->ip_id);
+static const VMStateDescription vmstate_slirp_sbuf = {
+ .name = "slirp-sbuf",
+ .version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(sb_cc, struct sbuf),
+ VMSTATE_UINT32(sb_datalen, struct sbuf),
+ VMSTATE_WITH_TMP(struct sbuf, struct sbuf_tmp, vmstate_slirp_sbuf_tmp),
+ VMSTATE_VBUFFER_UINT32(sb_data, struct sbuf, 0, NULL, sb_datalen),
+ VMSTATE_END_OF_LIST()
+ }
+};
- slirp_bootp_save(f, slirp);
+static bool slirp_older_than_v4(void *opaque, int version_id)
+{
+ return version_id < 4;
}
-static void slirp_tcp_load(QEMUFile *f, struct tcpcb *tp)
+static bool slirp_family_inet(void *opaque, int version_id)
{
- int i;
-
- tp->t_state = qemu_get_sbe16(f);
- for (i = 0; i < TCPT_NTIMERS; i++)
- tp->t_timer[i] = qemu_get_sbe16(f);
- tp->t_rxtshift = qemu_get_sbe16(f);
- tp->t_rxtcur = qemu_get_sbe16(f);
- tp->t_dupacks = qemu_get_sbe16(f);
- tp->t_maxseg = qemu_get_be16(f);
- tp->t_force = qemu_get_sbyte(f);
- tp->t_flags = qemu_get_be16(f);
- tp->snd_una = qemu_get_be32(f);
- tp->snd_nxt = qemu_get_be32(f);
- tp->snd_up = qemu_get_be32(f);
- tp->snd_wl1 = qemu_get_be32(f);
- tp->snd_wl2 = qemu_get_be32(f);
- tp->iss = qemu_get_be32(f);
- tp->snd_wnd = qemu_get_be32(f);
- tp->rcv_wnd = qemu_get_be32(f);
- tp->rcv_nxt = qemu_get_be32(f);
- tp->rcv_up = qemu_get_be32(f);
- tp->irs = qemu_get_be32(f);
- tp->rcv_adv = qemu_get_be32(f);
- tp->snd_max = qemu_get_be32(f);
- tp->snd_cwnd = qemu_get_be32(f);
- tp->snd_ssthresh = qemu_get_be32(f);
- tp->t_idle = qemu_get_sbe16(f);
- tp->t_rtt = qemu_get_sbe16(f);
- tp->t_rtseq = qemu_get_be32(f);
- tp->t_srtt = qemu_get_sbe16(f);
- tp->t_rttvar = qemu_get_sbe16(f);
- tp->t_rttmin = qemu_get_be16(f);
- tp->max_sndwnd = qemu_get_be32(f);
- tp->t_oobflags = qemu_get_byte(f);
- tp->t_iobc = qemu_get_byte(f);
- tp->t_softerror = qemu_get_sbe16(f);
- tp->snd_scale = qemu_get_byte(f);
- tp->rcv_scale = qemu_get_byte(f);
- tp->request_r_scale = qemu_get_byte(f);
- tp->requested_s_scale = qemu_get_byte(f);
- tp->ts_recent = qemu_get_be32(f);
- tp->ts_recent_age = qemu_get_be32(f);
- tp->last_ack_sent = qemu_get_be32(f);
- tcp_template(tp);
+ union slirp_sockaddr *ssa = (union slirp_sockaddr *)opaque;
+ return ssa->ss.ss_family == AF_INET;
}
-static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf)
+static int slirp_socket_pre_load(void *opaque)
{
- uint32_t off, sb_cc, sb_datalen;
+ struct socket *so = opaque;
+ if (tcp_attach(so) < 0) {
+ return -ENOMEM;
+ }
+ /* Older versions don't load these fields */
+ so->so_ffamily = AF_INET;
+ so->so_lfamily = AF_INET;
+ return 0;
+}
- sb_cc = qemu_get_be32(f);
- sb_datalen = qemu_get_be32(f);
+#ifndef _WIN32
+#define VMSTATE_SIN4_ADDR(f, s, t) VMSTATE_UINT32_TEST(f, s, t)
+#else
+/* Win uses u_long rather than uint32_t - but it's still 32bits long */
+#define VMSTATE_SIN4_ADDR(f, s, t) VMSTATE_SINGLE_TEST(f, s, t, 0, \
+ vmstate_info_uint32, u_long)
+#endif
- sbreserve(sbuf, sb_datalen);
+/* The OS provided ss_family field isn't that portable; it's size
+ * and type varies (16/8 bit, signed, unsigned)
+ * and the values it contains aren't fully portable.
+ */
+typedef struct SS_FamilyTmpStruct {
+ union slirp_sockaddr *parent;
+ uint16_t portable_family;
+} SS_FamilyTmpStruct;
- if (sbuf->sb_datalen != sb_datalen)
- return -ENOMEM;
+#define SS_FAMILY_MIG_IPV4 2 /* Linux, BSD, Win... */
+#define SS_FAMILY_MIG_IPV6 10 /* Linux */
+#define SS_FAMILY_MIG_OTHER 0xffff
- sbuf->sb_cc = sb_cc;
+static int ss_family_pre_save(void *opaque)
+{
+ SS_FamilyTmpStruct *tss = opaque;
- off = qemu_get_sbe32(f);
- sbuf->sb_wptr = sbuf->sb_data + off;
- off = qemu_get_sbe32(f);
- sbuf->sb_rptr = sbuf->sb_data + off;
- qemu_get_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen);
+ tss->portable_family = SS_FAMILY_MIG_OTHER;
+
+ if (tss->parent->ss.ss_family == AF_INET) {
+ tss->portable_family = SS_FAMILY_MIG_IPV4;
+ } else if (tss->parent->ss.ss_family == AF_INET6) {
+ tss->portable_family = SS_FAMILY_MIG_IPV6;
+ }
return 0;
}
-static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
+static int ss_family_post_load(void *opaque, int version_id)
{
- if (tcp_attach(so) < 0)
- return -ENOMEM;
+ SS_FamilyTmpStruct *tss = opaque;
- so->so_urgc = qemu_get_be32(f);
- if (version_id <= 3) {
- so->so_ffamily = AF_INET;
- so->so_faddr.s_addr = qemu_get_be32(f);
- so->so_laddr.s_addr = qemu_get_be32(f);
- so->so_fport = qemu_get_be16(f);
- so->so_lport = qemu_get_be16(f);
- } else {
- so->so_ffamily = qemu_get_be16(f);
- switch (so->so_ffamily) {
- case AF_INET:
- so->so_faddr.s_addr = qemu_get_be32(f);
- so->so_fport = qemu_get_be16(f);
- break;
- default:
- error_report(
- "so_ffamily unknown, unable to restore so_faddr and so_lport");
- }
- so->so_lfamily = qemu_get_be16(f);
- switch (so->so_lfamily) {
- case AF_INET:
- so->so_laddr.s_addr = qemu_get_be32(f);
- so->so_lport = qemu_get_be16(f);
- break;
- default:
- error_report(
- "so_ffamily unknown, unable to restore so_laddr and so_lport");
- }
+ switch (tss->portable_family) {
+ case SS_FAMILY_MIG_IPV4:
+ tss->parent->ss.ss_family = AF_INET;
+ break;
+ case SS_FAMILY_MIG_IPV6:
+ case 23: /* compatibility: AF_INET6 from mingw */
+ case 28: /* compatibility: AF_INET6 from FreeBSD sys/socket.h */
+ tss->parent->ss.ss_family = AF_INET6;
+ break;
+ default:
+ g_critical("invalid ss_family type %x", tss->portable_family);
+ return -EINVAL;
}
- so->so_iptos = qemu_get_byte(f);
- so->so_emu = qemu_get_byte(f);
- so->so_type = qemu_get_byte(f);
- so->so_state = qemu_get_be32(f);
- if (slirp_sbuf_load(f, &so->so_rcv) < 0)
- return -ENOMEM;
- if (slirp_sbuf_load(f, &so->so_snd) < 0)
- return -ENOMEM;
- slirp_tcp_load(f, so->so_tcpcb);
return 0;
}
-static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
-{
- int i;
+static const VMStateDescription vmstate_slirp_ss_family = {
+ .name = "slirp-socket-addr/ss_family",
+ .pre_save = ss_family_pre_save,
+ .post_load = ss_family_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT16(portable_family, SS_FamilyTmpStruct),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_slirp_socket_addr = {
+ .name = "slirp-socket-addr",
+ .version_id = 4,
+ .fields = (VMStateField[]) {
+ VMSTATE_WITH_TMP(union slirp_sockaddr, SS_FamilyTmpStruct,
+ vmstate_slirp_ss_family),
+ VMSTATE_SIN4_ADDR(sin.sin_addr.s_addr, union slirp_sockaddr,
+ slirp_family_inet),
+ VMSTATE_UINT16_TEST(sin.sin_port, union slirp_sockaddr,
+ slirp_family_inet),
+
+#if 0
+ /* Untested: Needs checking by someone with IPv6 test */
+ VMSTATE_BUFFER_TEST(sin6.sin6_addr, union slirp_sockaddr,
+ slirp_family_inet6),
+ VMSTATE_UINT16_TEST(sin6.sin6_port, union slirp_sockaddr,
+ slirp_family_inet6),
+ VMSTATE_UINT32_TEST(sin6.sin6_flowinfo, union slirp_sockaddr,
+ slirp_family_inet6),
+ VMSTATE_UINT32_TEST(sin6.sin6_scope_id, union slirp_sockaddr,
+ slirp_family_inet6),
+#endif
+
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_slirp_socket = {
+ .name = "slirp-socket",
+ .version_id = 4,
+ .pre_load = slirp_socket_pre_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(so_urgc, struct socket),
+ /* Pre-v4 versions */
+ VMSTATE_SIN4_ADDR(so_faddr.s_addr, struct socket,
+ slirp_older_than_v4),
+ VMSTATE_SIN4_ADDR(so_laddr.s_addr, struct socket,
+ slirp_older_than_v4),
+ VMSTATE_UINT16_TEST(so_fport, struct socket, slirp_older_than_v4),
+ VMSTATE_UINT16_TEST(so_lport, struct socket, slirp_older_than_v4),
+ /* v4 and newer */
+ VMSTATE_STRUCT(fhost, struct socket, 4, vmstate_slirp_socket_addr,
+ union slirp_sockaddr),
+ VMSTATE_STRUCT(lhost, struct socket, 4, vmstate_slirp_socket_addr,
+ union slirp_sockaddr),
+
+ VMSTATE_UINT8(so_iptos, struct socket),
+ VMSTATE_UINT8(so_emu, struct socket),
+ VMSTATE_UINT8(so_type, struct socket),
+ VMSTATE_INT32(so_state, struct socket),
+ VMSTATE_STRUCT(so_rcv, struct socket, 0, vmstate_slirp_sbuf,
+ struct sbuf),
+ VMSTATE_STRUCT(so_snd, struct socket, 0, vmstate_slirp_sbuf,
+ struct sbuf),
+ VMSTATE_STRUCT_POINTER(so_tcpcb, struct socket, vmstate_slirp_tcp,
+ struct tcpcb),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_slirp_bootp_client = {
+ .name = "slirp_bootpclient",
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT16(allocated, BOOTPClient),
+ VMSTATE_BUFFER(macaddr, BOOTPClient),
+ VMSTATE_END_OF_LIST()
+ }
+};
- for (i = 0; i < NB_BOOTP_CLIENTS; i++) {
- slirp->bootp_clients[i].allocated = qemu_get_be16(f);
- qemu_get_buffer(f, slirp->bootp_clients[i].macaddr, 6);
+static const VMStateDescription vmstate_slirp = {
+ .name = "slirp",
+ .version_id = 4,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT16_V(ip_id, Slirp, 2),
+ VMSTATE_STRUCT_ARRAY(bootp_clients, Slirp, NB_BOOTP_CLIENTS, 3,
+ vmstate_slirp_bootp_client, BOOTPClient),
+ VMSTATE_END_OF_LIST()
}
+};
+
+static void slirp_state_save(QEMUFile *f, void *opaque)
+{
+ Slirp *slirp = opaque;
+ struct gfwd_list *ex_ptr;
+
+ for (ex_ptr = slirp->guestfwd_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
+ if (ex_ptr->ex_chardev) {
+ struct socket *so;
+ so = slirp_find_ctl_socket(slirp, ex_ptr->ex_addr,
+ ntohs(ex_ptr->ex_fport));
+ if (!so)
+ continue;
+
+ qemu_put_byte(f, 42);
+ vmstate_save_state(f, &vmstate_slirp_socket, so, NULL);
+ }
+ qemu_put_byte(f, 0);
+
+ vmstate_save_state(f, &vmstate_slirp, slirp, NULL);
}
+
static int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
{
Slirp *slirp = opaque;
- struct ex_list *ex_ptr;
+ struct gfwd_list *ex_ptr;
while (qemu_get_byte(f)) {
int ret;
struct socket *so = socreate(slirp);
- if (!so)
- return -ENOMEM;
-
- ret = slirp_socket_load(f, so, version_id);
+ ret = vmstate_load_state(f, &vmstate_slirp_socket, so, version_id);
if (ret < 0)
return ret;
slirp->vnetwork_addr.s_addr) {
return -EINVAL;
}
- for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
- if (ex_ptr->ex_pty == 3 &&
+ for (ex_ptr = slirp->guestfwd_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
+ if (ex_ptr->ex_chardev &&
so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr &&
so->so_fport == ex_ptr->ex_fport) {
break;
}
if (!ex_ptr)
return -EINVAL;
-
- so->extra = (void *)ex_ptr->ex_exec;
}
- if (version_id >= 2) {
- slirp->ip_id = qemu_get_be16(f);
- }
-
- if (version_id >= 3) {
- slirp_bootp_load(f, slirp);
- }
-
- return 0;
+ return vmstate_load_state(f, &vmstate_slirp, slirp, version_id);
}
projects / mirror_qemu.git / blobdiff