[Qemu-devel] [PULL 0/9] slirp updates

[Qemu-devel] [PULL 0/9] slirp updates

[Samuel Thibault]

The following changes since commit 81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9:

  Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170426' into staging (2017-04-26 20:50:49 +0100)

are available in the git repository at:

  http://people.debian.org/~sthibault/qemu.git tags/samuel-thibault

for you to fetch changes up to eb5d4f5329df83ea15244b47f7fbca21adaae41b:

  slirp: VMStatify remaining except for loop (2017-04-29 18:44:16 +0200)

----------------------------------------------------------------
slirp updates

----------------------------------------------------------------
Dr. David Alan Gilbert (6):
      slirp/smb: Replace constant strings by glib string
      slirp: VMState conversion; tcpcb
      slirp: VMStatify sbuf
      slirp: Common lhost/fhost union
      slirp: VMStatify socket level
      slirp: VMStatify remaining except for loop

Marc-André Lureau (1):
      slirp: tftp, copy sockaddr_size

Samuel Thibault (1):
      slirp: fix pinging the virtual ipv4 DNS server

Vincent Bernat (1):
      slirp: allow host port 0 for hostfwd

 net/slirp.c     |  32 ++--
 slirp/ip_icmp.c |   5 +-
 slirp/sbuf.h    |   4 +-
 slirp/slirp.c   | 494 +++++++++++++++++++++++++++++++-------------------------
 slirp/socket.h  |  24 ++-
 slirp/tcp_var.h |   6 +-
 slirp/tftp.c    |   2 +-
 7 files changed, 310 insertions(+), 257 deletions(-)

[Qemu-devel] [PULL 1/9] slirp: allow host port 0 for hostfwd

[Samuel Thibault]

From: Vincent Bernat <vincent@bernat.im>

The OS will allocate automatically a free port. This is useful if you
want to be sure to not get any port conflict. You still have to figure
out which port you got, for example with "lsof" (this could be exposed
in the monitor if needed).

Example of use:

     $ qemu-system-x86_64 -net user,hostfwd=127.0.0.1:0-:22 ...

Then, get your port with:

     $ lsof -np 1474 | grep LISTEN
     qemu-syst 31777 bernat 12u IPv4 [...] TCP 127.0.0.1:35145 (LISTEN)

Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 net/slirp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/slirp.c b/net/slirp.c
index f97ec23345..11b2dd249a 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -487,7 +487,7 @@ static int slirp_hostfwd(SlirpState *s, const char *redir_str,
         goto fail_syntax;
     }
     host_port = strtol(buf, &end, 0);
-    if (*end != '\0' || host_port < 1 || host_port > 65535) {
+    if (*end != '\0' || host_port < 0 || host_port > 65535) {
         goto fail_syntax;
     }
 
-- 
2.11.0

[Qemu-devel] [PULL 2/9] slirp/smb: Replace constant strings by glib string

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

gcc 7 (on fedora 26) objects to many of the snprintf's
in the smb path and command creation because it can't
figure out that the smb_dir (i.e. the /tmp dir for the configuration)
is known to be short.

Replace all these fixed length buffers by g_str* functions that dynamically
allocate and use g_dir_make_tmp to make the directory.
(It's fairly new glib but we have a compat function for it).

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 net/slirp.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/net/slirp.c b/net/slirp.c
index 11b2dd249a..c705a60b62 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -80,7 +80,7 @@ typedef struct SlirpState {
     Slirp *slirp;
     Notifier exit_notifier;
 #ifndef _WIN32
-    char smb_dir[128];
+    gchar *smb_dir;
 #endif
 } SlirpState;
 
@@ -558,11 +558,10 @@ int net_slirp_redir(const char *redir_str)
 /* automatic user mode samba server configuration */
 static void slirp_smb_cleanup(SlirpState *s)
 {
-    char cmd[128];
     int ret;
 
-    if (s->smb_dir[0] != '\0') {
-        snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir);
+    if (s->smb_dir) {
+        gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir);
         ret = system(cmd);
         if (ret == -1 || !WIFEXITED(ret)) {
             error_report("'%s' failed.", cmd);
@@ -570,15 +569,17 @@ static void slirp_smb_cleanup(SlirpState *s)
             error_report("'%s' failed. Error code: %d",
                          cmd, WEXITSTATUS(ret));
         }
-        s->smb_dir[0] = '\0';
+        g_free(cmd);
+        g_free(s->smb_dir);
+        s->smb_dir = NULL;
     }
 }
 
 static int slirp_smb(SlirpState* s, const char *exported_dir,
                      struct in_addr vserver_addr)
 {
-    char smb_conf[128];
-    char smb_cmdline[128];
+    char *smb_conf;
+    char *smb_cmdline;
     struct passwd *passwd;
     FILE *f;
 
@@ -600,19 +601,19 @@ static int slirp_smb(SlirpState* s, const char *exported_dir,
         return -1;
     }
 
-    snprintf(s->smb_dir, sizeof(s->smb_dir), "/tmp/qemu-smb.XXXXXX");
-    if (!mkdtemp(s->smb_dir)) {
-        error_report("could not create samba server dir '%s'", s->smb_dir);
-        s->smb_dir[0] = 0;
+    s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL);
+    if (!s->smb_dir) {
+        error_report("could not create samba server dir");
         return -1;
     }
-    snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf");
+    smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf");
 
     f = fopen(smb_conf, "w");
     if (!f) {
         slirp_smb_cleanup(s);
         error_report("could not create samba server configuration file '%s'",
                      smb_conf);
+        g_free(smb_conf);
         return -1;
     }
     fprintf(f,
@@ -651,15 +652,18 @@ static int slirp_smb(SlirpState* s, const char *exported_dir,
             );
     fclose(f);
 
-    snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -l %s -s %s",
+    smb_cmdline = g_strdup_printf("%s -l %s -s %s",
              CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf);
+    g_free(smb_conf);
 
     if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0 ||
         slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 445) < 0) {
         slirp_smb_cleanup(s);
+        g_free(smb_cmdline);
         error_report("conflicting/invalid smbserver address");
         return -1;
     }
+    g_free(smb_cmdline);
     return 0;
 }
 
-- 
2.11.0

[Qemu-devel] [PULL 3/9] slirp: tftp, copy sockaddr_size

[Samuel Thibault]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

ASAN detects an "unknown-crash" when running pxe-test:

/ppc64/pxe/spapr-vlan: =================================================================
==7143==ERROR: AddressSanitizer: unknown-crash on address 0x7f6dcd298d30 at pc 0x55e22218830d bp 0x7f6dcd2989e0 sp 0x7f6dcd2989d0
READ of size 128 at 0x7f6dcd298d30 thread T2
    #0 0x55e22218830c in tftp_session_allocate /home/elmarco/src/qq/slirp/tftp.c:73
    #1 0x55e22218a1f8 in tftp_handle_rrq /home/elmarco/src/qq/slirp/tftp.c:289
    #2 0x55e22218b54c in tftp_input /home/elmarco/src/qq/slirp/tftp.c:446
    #3 0x55e2221833fe in udp6_input /home/elmarco/src/qq/slirp/udp6.c:82
    #4 0x55e222137b17 in ip6_input /home/elmarco/src/qq/slirp/ip6_input.c:67

Address 0x7f6dcd298d30 is located in stack of thread T2 at offset 96 in frame
    #0 0x55e222182420 in udp6_input /home/elmarco/src/qq/slirp/udp6.c:13

  This frame has 3 object(s):
    [32, 48) '<unknown>'
    [96, 124) 'lhost' <== Memory access at offset 96 partially overflows this variable
    [160, 200) 'save_ip' <== Memory access at offset 96 partially underflows this variable

The sockaddr_storage pointer is the sockaddr_in6 lhost on the
stack. Copy only the source addr size.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/tftp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slirp/tftp.c b/slirp/tftp.c
index 50e714807d..a9bc4bb1b6 100644
--- a/slirp/tftp.c
+++ b/slirp/tftp.c
@@ -70,7 +70,7 @@ static int tftp_session_allocate(Slirp *slirp, struct sockaddr_storage *srcsas,
 
  found:
   memset(spt, 0, sizeof(*spt));
-  spt->client_addr = *srcsas;
+  memcpy(&spt->client_addr, srcsas, sockaddr_size(srcsas));
   spt->fd = -1;
   spt->block_size = 512;
   spt->client_port = tp->udp.uh_sport;
-- 
2.11.0

[Qemu-devel] [PULL 4/9] slirp: fix pinging the virtual ipv4 DNS server

[Samuel Thibault]

so that people do not think it is not working at least basically.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/ip_icmp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/slirp/ip_icmp.c b/slirp/ip_icmp.c
index 5ffc7a683d..0b667a429a 100644
--- a/slirp/ip_icmp.c
+++ b/slirp/ip_icmp.c
@@ -152,8 +152,9 @@ icmp_input(struct mbuf *m, int hlen)
   switch (icp->icmp_type) {
   case ICMP_ECHO:
     ip->ip_len += hlen;	             /* since ip_input subtracts this */
-    if (ip->ip_dst.s_addr == slirp->vhost_addr.s_addr) {
-      icmp_reflect(m);
+    if (ip->ip_dst.s_addr == slirp->vhost_addr.s_addr ||
+        ip->ip_dst.s_addr == slirp->vnameserver_addr.s_addr) {
+        icmp_reflect(m);
     } else if (slirp->restricted) {
         goto freeit;
     } else {
-- 
2.11.0

[Qemu-devel] [PULL 5/9] slirp: VMState conversion; tcpcb

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Convert the migration of the struct tcpcb to use a VMStateDescription,
the rest of it will come later.

Mostly mechanical, except for conversion of some 'char' to uint8_t
to ensure portability.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/slirp.c   | 149 ++++++++++++++++++++------------------------------------
 slirp/tcp_var.h |   6 +--
 2 files changed, 57 insertions(+), 98 deletions(-)

diff --git a/slirp/slirp.c b/slirp/slirp.c
index 9a50918346..2c2a589303 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -1133,53 +1133,62 @@ void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr, int guest_port,
         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;
+    tcp_template((struct tcpcb *)opaque);
 
-    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);
+    return 0;
 }
 
+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()
+    }
+};
+
 static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf)
 {
     uint32_t off;
@@ -1222,7 +1231,7 @@ static void slirp_socket_save(QEMUFile *f, struct socket *so)
     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);
+    vmstate_save_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
 }
 
 static void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
@@ -1258,54 +1267,6 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
     slirp_bootp_save(f, slirp);
 }
 
-static void slirp_tcp_load(QEMUFile *f, struct tcpcb *tp)
-{
-    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);
-}
-
 static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf)
 {
     uint32_t off, sb_cc, sb_datalen;
@@ -1371,9 +1332,7 @@ static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
         return -ENOMEM;
     if (slirp_sbuf_load(f, &so->so_snd) < 0)
         return -ENOMEM;
-    slirp_tcp_load(f, so->so_tcpcb);
-
-    return 0;
+    return vmstate_load_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
 }
 
 static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
diff --git a/slirp/tcp_var.h b/slirp/tcp_var.h
index 0f8f187c5c..895ef6df1e 100644
--- a/slirp/tcp_var.h
+++ b/slirp/tcp_var.h
@@ -48,7 +48,7 @@ struct tcpcb {
 	short	t_rxtcur;		/* current retransmit value */
 	short	t_dupacks;		/* consecutive dup acks recd */
 	u_short	t_maxseg;		/* maximum segment size */
-	char	t_force;		/* 1 if forcing out a byte */
+	uint8_t t_force;		/* 1 if forcing out a byte */
 	u_short	t_flags;
 #define	TF_ACKNOW	0x0001		/* ack peer immediately */
 #define	TF_DELACK	0x0002		/* ack, but try to delay it */
@@ -109,8 +109,8 @@ struct tcpcb {
 	uint32_t max_sndwnd;		/* largest window peer has offered */
 
 /* out-of-band data */
-	char	t_oobflags;		/* have some */
-	char	t_iobc;			/* input character */
+	uint8_t	t_oobflags;		/* have some */
+	uint8_t	t_iobc;			/* input character */
 #define	TCPOOB_HAVEDATA	0x01
 #define	TCPOOB_HADDATA	0x02
 	short	t_softerror;		/* possible error not yet reported */
-- 
2.11.0

[Qemu-devel] [PULL 6/9] slirp: VMStatify sbuf

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Convert the sbuf structure to a VMStateDescription.
Note this uses the VMSTATE_WITH_TMP mechanism to calculate
and reload the offsets based on the pointers.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/sbuf.h  |   4 +-
 slirp/slirp.c | 116 ++++++++++++++++++++++++++++++++++++++--------------------
 2 files changed, 78 insertions(+), 42 deletions(-)

diff --git a/slirp/sbuf.h b/slirp/sbuf.h
index efcec39a6b..a722ecb629 100644
--- a/slirp/sbuf.h
+++ b/slirp/sbuf.h
@@ -12,8 +12,8 @@
 #define sbspace(sb) ((sb)->sb_datalen - (sb)->sb_cc)
 
 struct sbuf {
-	u_int	sb_cc;		/* actual chars in buffer */
-	u_int	sb_datalen;	/* Length of data  */
+	uint32_t sb_cc;		/* actual chars in buffer */
+	uint32_t sb_datalen;	/* Length of data  */
 	char	*sb_wptr;	/* write pointer. points to where the next
 				 * bytes should be written in the sbuf */
 	char	*sb_rptr;	/* read pointer. points to where the next
diff --git a/slirp/slirp.c b/slirp/slirp.c
index 2c2a589303..8fc4e8df73 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -1189,19 +1189,72 @@ static const VMStateDescription vmstate_slirp_tcp = {
     }
 };
 
-static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf)
+/* 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 void sbuf_tmp_pre_save(void *opaque)
+{
+    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;
+}
+
+static int sbuf_tmp_post_load(void *opaque, int version)
 {
-    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;
+    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;
+    }
+    if (tmp->woff >= requested_len ||
+        tmp->roff >= requested_len) {
+        error_report("invalid sbuf offsets r/w=%u/%u len=%u",
+                     tmp->roff, tmp->woff, requested_len);
+        return -EINVAL;
+    }
+
+    tmp->parent->sb_wptr = tmp->parent->sb_data + tmp->woff;
+    tmp->parent->sb_rptr = tmp->parent->sb_data + tmp->roff;
+
+    return 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()
+    }
+};
+
+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()
+    }
+};
+
+
 static void slirp_socket_save(QEMUFile *f, struct socket *so)
 {
     qemu_put_be32(f, so->so_urgc);
@@ -1229,8 +1282,9 @@ static void slirp_socket_save(QEMUFile *f, struct socket *so)
     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);
+    /* TODO: Build vmstate at this level */
+    vmstate_save_state(f, &vmstate_slirp_sbuf, &so->so_rcv, 0);
+    vmstate_save_state(f, &vmstate_slirp_sbuf, &so->so_snd, 0);
     vmstate_save_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
 }
 
@@ -1267,31 +1321,9 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
     slirp_bootp_save(f, slirp);
 }
 
-static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf)
-{
-    uint32_t off, sb_cc, sb_datalen;
-
-    sb_cc = qemu_get_be32(f);
-    sb_datalen = qemu_get_be32(f);
-
-    sbreserve(sbuf, sb_datalen);
-
-    if (sbuf->sb_datalen != sb_datalen)
-        return -ENOMEM;
-
-    sbuf->sb_cc = sb_cc;
-
-    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);
-
-    return 0;
-}
-
 static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
 {
+    int ret = 0;
     if (tcp_attach(so) < 0)
         return -ENOMEM;
 
@@ -1328,11 +1360,15 @@ static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
     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;
-    return vmstate_load_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
+    /* TODO: VMState at this level */
+    ret = vmstate_load_state(f, &vmstate_slirp_sbuf, &so->so_rcv, 0);
+    if (!ret) {
+        ret = vmstate_load_state(f, &vmstate_slirp_sbuf, &so->so_snd, 0);
+    }
+    if (!ret) {
+        ret = vmstate_load_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
+    }
+    return ret;
 }
 
 static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
-- 
2.11.0

[Qemu-devel] [PULL 7/9] slirp: Common lhost/fhost union

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

The socket structure has a pair of unions for lhost and fhost
addresses; the unions are identical so split them out into
a separate union declaration.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/socket.h | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/slirp/socket.h b/slirp/socket.h
index 8feed2aea4..c1be77eaf3 100644
--- a/slirp/socket.h
+++ b/slirp/socket.h
@@ -15,6 +15,12 @@
  * Our socket structure
  */
 
+union slirp_sockaddr {
+    struct sockaddr_storage ss;
+    struct sockaddr_in sin;
+    struct sockaddr_in6 sin6;
+};
+
 struct socket {
   struct socket *so_next,*so_prev;      /* For a linked list of sockets */
 
@@ -31,22 +37,14 @@ struct socket {
   struct tcpiphdr *so_ti;	   /* Pointer to the original ti within
 				    * so_mconn, for non-blocking connections */
   int so_urgc;
-  union {   /* foreign host */
-      struct sockaddr_storage ss;
-      struct sockaddr_in sin;
-      struct sockaddr_in6 sin6;
-  } fhost;
+  union slirp_sockaddr fhost;      /* Foreign host */
 #define so_faddr fhost.sin.sin_addr
 #define so_fport fhost.sin.sin_port
 #define so_faddr6 fhost.sin6.sin6_addr
 #define so_fport6 fhost.sin6.sin6_port
 #define so_ffamily fhost.ss.ss_family
 
-  union {   /* local host */
-      struct sockaddr_storage ss;
-      struct sockaddr_in sin;
-      struct sockaddr_in6 sin6;
-  } lhost;
+  union slirp_sockaddr lhost;      /* Local host */
 #define so_laddr lhost.sin.sin_addr
 #define so_lport lhost.sin.sin_port
 #define so_laddr6 lhost.sin6.sin6_addr
-- 
2.11.0

[Qemu-devel] [PULL 8/9] slirp: VMStatify socket level

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Working up the stack, this replaces the slirp_socket_load/save
with VMState definitions.

A place holder for IPv6 support is added as a comment; it needs
testing once the rest of the IPv6 code is there.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/slirp.c  | 219 +++++++++++++++++++++++++++++++++++++--------------------
 slirp/socket.h |   6 +-
 2 files changed, 145 insertions(+), 80 deletions(-)

diff --git a/slirp/slirp.c b/slirp/slirp.c
index 8fc4e8df73..c3426648e5 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -1254,40 +1254,154 @@ static const VMStateDescription vmstate_slirp_sbuf = {
     }
 };
 
+static bool slirp_older_than_v4(void *opaque, int version_id)
+{
+    return version_id < 4;
+}
 
-static void slirp_socket_save(QEMUFile *f, struct socket *so)
+static bool slirp_family_inet(void *opaque, int version_id)
 {
-    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");
+    union slirp_sockaddr *ssa = (union slirp_sockaddr *)opaque;
+    return ssa->ss.ss_family == AF_INET;
+}
+
+static int slirp_socket_pre_load(void *opaque)
+{
+    struct socket *so = opaque;
+    if (tcp_attach(so) < 0) {
+        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);
+    /* Older versions don't load these fields */
+    so->so_ffamily = AF_INET;
+    so->so_lfamily = AF_INET;
+    return 0;
+}
+
+#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
+
+/* 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;
+
+#define SS_FAMILY_MIG_IPV4   2  /* Linux, BSD, Win... */
+#define SS_FAMILY_MIG_IPV6  10  /* Linux */
+#define SS_FAMILY_MIG_OTHER 0xffff
+
+static void ss_family_pre_save(void *opaque)
+{
+    SS_FamilyTmpStruct *tss = opaque;
+
+    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;
+    }
+}
+
+static int ss_family_post_load(void *opaque, int version_id)
+{
+    SS_FamilyTmpStruct *tss = opaque;
+
+    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:
-        error_report("so_ffamily unknown, unable to save so_laddr and"
-                     " so_lport");
+        error_report("invalid ss_family type %x", tss->portable_family);
+        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);
-    /* TODO: Build vmstate at this level */
-    vmstate_save_state(f, &vmstate_slirp_sbuf, &so->so_rcv, 0);
-    vmstate_save_state(f, &vmstate_slirp_sbuf, &so->so_snd, 0);
-    vmstate_save_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
+
+    return 0;
 }
 
+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 void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
 {
     int i;
@@ -1312,7 +1426,7 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
                 continue;
 
             qemu_put_byte(f, 42);
-            slirp_socket_save(f, so);
+            vmstate_save_state(f, &vmstate_slirp_socket, so, NULL);
         }
     qemu_put_byte(f, 0);
 
@@ -1321,55 +1435,6 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
     slirp_bootp_save(f, slirp);
 }
 
-static int slirp_socket_load(QEMUFile *f, struct socket *so, int version_id)
-{
-    int ret = 0;
-    if (tcp_attach(so) < 0)
-        return -ENOMEM;
-
-    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");
-        }
-    }
-    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);
-    /* TODO: VMState at this level */
-    ret = vmstate_load_state(f, &vmstate_slirp_sbuf, &so->so_rcv, 0);
-    if (!ret) {
-        ret = vmstate_load_state(f, &vmstate_slirp_sbuf, &so->so_snd, 0);
-    }
-    if (!ret) {
-        ret = vmstate_load_state(f, &vmstate_slirp_tcp, so->so_tcpcb, 0);
-    }
-    return ret;
-}
 
 static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
 {
@@ -1393,7 +1458,7 @@ static int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
         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;
diff --git a/slirp/socket.h b/slirp/socket.h
index c1be77eaf3..2f224bc34f 100644
--- a/slirp/socket.h
+++ b/slirp/socket.h
@@ -36,7 +36,7 @@ struct socket {
 				    * PING reply's */
   struct tcpiphdr *so_ti;	   /* Pointer to the original ti within
 				    * so_mconn, for non-blocking connections */
-  int so_urgc;
+  uint32_t      so_urgc;
   union slirp_sockaddr fhost;      /* Foreign host */
 #define so_faddr fhost.sin.sin_addr
 #define so_fport fhost.sin.sin_port
@@ -54,8 +54,8 @@ struct socket {
   uint8_t	so_iptos;	/* Type of service */
   uint8_t	so_emu;		/* Is the socket emulated? */
 
-  u_char	so_type;		/* Type of socket, UDP or TCP */
-  int	so_state;		/* internal state flags SS_*, below */
+  uint8_t       so_type;        /* Type of socket, UDP or TCP */
+  int32_t       so_state;       /* internal state flags SS_*, below */
 
   struct 	tcpcb *so_tcpcb;	/* pointer to TCP protocol control block */
   u_int	so_expire;		/* When the socket will expire */
-- 
2.11.0

[Qemu-devel] [PULL 9/9] slirp: VMStatify remaining except for loop

[Samuel Thibault]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

This converts the remaining components, except for the top level
loop, to VMState.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 slirp/slirp.c | 48 +++++++++++++++++++-----------------------------
 1 file changed, 19 insertions(+), 29 deletions(-)

diff --git a/slirp/slirp.c b/slirp/slirp.c
index c3426648e5..2f2ec2c1b3 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -1402,15 +1402,25 @@ static const VMStateDescription vmstate_slirp_socket = {
     }
 };
 
-static void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
-{
-    int i;
+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++) {
-        qemu_put_be16(f, slirp->bootp_clients[i].allocated);
-        qemu_put_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)
 {
@@ -1430,22 +1440,10 @@ static void slirp_state_save(QEMUFile *f, void *opaque)
         }
     qemu_put_byte(f, 0);
 
-    qemu_put_be16(f, slirp->ip_id);
-
-    slirp_bootp_save(f, slirp);
+    vmstate_save_state(f, &vmstate_slirp, slirp, NULL);
 }
 
 
-static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
-{
-    int i;
-
-    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 int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
 {
     Slirp *slirp = opaque;
@@ -1480,13 +1478,5 @@ static int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
         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);
 }
-- 
2.11.0

Re: [Qemu-devel] [PULL 0/9] slirp updates

[no-reply]

Hi,

This series seems to have some coding style problems. See output below for
more information:

Subject: [Qemu-devel] [PULL 0/9] slirp updates
Message-id: 20170429164750.17414-1-samuel.thibault@ens-lyon.org
Type: series

=== TEST SCRIPT BEGIN ===
#!/bin/bash

BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0

# Useful git options
git config --local diff.renamelimit 0
git config --local diff.renames True

commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
    echo "Checking PATCH $n/$total: $(git log -n 1 --format=%s $c)..."
    if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
        failed=1
        echo
    fi
    n=$((n+1))
done

exit $failed
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
9c3a55e slirp: VMStatify remaining except for loop
a3f1ecc slirp: VMStatify socket level
ca57f56 slirp: Common lhost/fhost union
87aa9e5 slirp: VMStatify sbuf
52b7590 slirp: VMState conversion; tcpcb
3ae6fb2 slirp: fix pinging the virtual ipv4 DNS server
81e0637 slirp: tftp, copy sockaddr_size
a60efbb slirp/smb: Replace constant strings by glib string
14d0639 slirp: allow host port 0 for hostfwd

=== OUTPUT BEGIN ===
Checking PATCH 1/9: slirp: allow host port 0 for hostfwd...
Checking PATCH 2/9: slirp/smb: Replace constant strings by glib string...
Checking PATCH 3/9: slirp: tftp, copy sockaddr_size...
Checking PATCH 4/9: slirp: fix pinging the virtual ipv4 DNS server...
Checking PATCH 5/9: slirp: VMState conversion; tcpcb...
ERROR: code indent should never use tabs
#212: FILE: slirp/tcp_var.h:51:
+^Iuint8_t t_force;^I^I/* 1 if forcing out a byte */$

ERROR: code indent should never use tabs
#222: FILE: slirp/tcp_var.h:112:
+^Iuint8_t^It_oobflags;^I^I/* have some */$

ERROR: code indent should never use tabs
#223: FILE: slirp/tcp_var.h:113:
+^Iuint8_t^It_iobc;^I^I^I/* input character */$

total: 3 errors, 0 warnings, 195 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 6/9: slirp: VMStatify sbuf...
ERROR: code indent should never use tabs
#26: FILE: slirp/sbuf.h:15:
+^Iuint32_t sb_cc;^I^I/* actual chars in buffer */$

ERROR: code indent should never use tabs
#27: FILE: slirp/sbuf.h:16:
+^Iuint32_t sb_datalen;^I/* Length of data  */$

total: 2 errors, 0 warnings, 155 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 7/9: slirp: Common lhost/fhost union...
Checking PATCH 8/9: slirp: VMStatify socket level...
ERROR: if this code is redundant consider removing it
#149: FILE: slirp/slirp.c:1356:
+#if 0

total: 1 errors, 0 warnings, 269 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 9/9: slirp: VMStatify remaining except for loop...
=== OUTPUT END ===

Test command exited with code: 1


---
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Please send your feedback to patchew-devel@freelists.org

Re: [Qemu-devel] [PULL 0/9] slirp updates

[Stefan Hajnoczi]

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On Sat, Apr 29, 2017 at 06:47:41PM +0200, Samuel Thibault wrote:
> The following changes since commit 81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9:
> 
>   Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170426' into staging (2017-04-26 20:50:49 +0100)
> 
> are available in the git repository at:
> 
>   http://people.debian.org/~sthibault/qemu.git tags/samuel-thibault
> 
> for you to fetch changes up to eb5d4f5329df83ea15244b47f7fbca21adaae41b:
> 
>   slirp: VMStatify remaining except for loop (2017-04-29 18:44:16 +0200)
> 
> ----------------------------------------------------------------
> slirp updates
> 
> ----------------------------------------------------------------
> Dr. David Alan Gilbert (6):
>       slirp/smb: Replace constant strings by glib string
>       slirp: VMState conversion; tcpcb
>       slirp: VMStatify sbuf
>       slirp: Common lhost/fhost union
>       slirp: VMStatify socket level
>       slirp: VMStatify remaining except for loop
> 
> Marc-André Lureau (1):
>       slirp: tftp, copy sockaddr_size
> 
> Samuel Thibault (1):
>       slirp: fix pinging the virtual ipv4 DNS server
> 
> Vincent Bernat (1):
>       slirp: allow host port 0 for hostfwd
> 
>  net/slirp.c     |  32 ++--
>  slirp/ip_icmp.c |   5 +-
>  slirp/sbuf.h    |   4 +-
>  slirp/slirp.c   | 494 +++++++++++++++++++++++++++++++-------------------------
>  slirp/socket.h  |  24 ++-
>  slirp/tcp_var.h |   6 +-
>  slirp/tftp.c    |   2 +-
>  7 files changed, 310 insertions(+), 257 deletions(-)
> 

Thanks, applied to my staging tree:
https://github.com/stefanha/qemu/commits/staging

Stefan

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