Author: bz
Date: Wed Oct 24 08:45:33 2018
New Revision: 339681
URL: https://svnweb.freebsd.org/changeset/base/339681
Log:
Allow the bhyve VNC server to listen on IPv6 for incoming connections.
Alternatively to IPv4 address:port this will allow to listen on IPv6
link-local (incl. scope), a specific address, or ::. Addresses have
to be given in RFC2732 format so that [::]:port parsing will work.
This patch also starts to introduce WITH_INET/INET6_SUPPORT to bhyve.
PR: 232018
Submitted by: Dave Rush (northwoodlogic.free gmail.com) (original)
Reviewed by: Dave Rush (updated verison)
MFC after: 3 days
Modified:
head/usr.sbin/bhyve/Makefile
head/usr.sbin/bhyve/bhyve.8
head/usr.sbin/bhyve/pci_fbuf.c
head/usr.sbin/bhyve/rfb.c
Modified: head/usr.sbin/bhyve/Makefile
==============================================================================
--- head/usr.sbin/bhyve/Makefile Wed Oct 24 05:15:46 2018
(r339680)
+++ head/usr.sbin/bhyve/Makefile Wed Oct 24 08:45:33 2018
(r339681)
@@ -73,6 +73,12 @@ SRCS+= vmm_instruction_emul.c
LIBADD= vmmapi md pthread z util sbuf cam
+.if ${MK_INET_SUPPORT} != "no"
+CFLAGS+=-DINET
+.endif
+.if ${MK_INET6_SUPPORT} != "no"
+CFLAGS+=-DINET6
+.endif
.if ${MK_OPENSSL} == "no"
CFLAGS+=-DNO_OPENSSL
.else
Modified: head/usr.sbin/bhyve/bhyve.8
==============================================================================
--- head/usr.sbin/bhyve/bhyve.8 Wed Oct 24 05:15:46 2018 (r339680)
+++ head/usr.sbin/bhyve/bhyve.8 Wed Oct 24 08:45:33 2018 (r339681)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd Aug 23, 2018
+.Dd October 24, 2018
.Dt BHYVE 8
.Os
.Sh NAME
@@ -369,14 +369,15 @@ Framebuffer devices:
.Bl -tag -width 10n
.It Oo rfb= Ns Oo Ar IP: Oc Ns Ar port Oc Ns Oo ,w= Ns Ar width Oc Ns Oo ,h=
Ns Ar height Oc Ns Oo ,vga= Ns Ar vgaconf Oc Ns Oo Ns ,wait Oc Ns Oo ,password=
Ns Ar password Oc
.Bl -tag -width 8n
-.It Ar IP:port
+.It Ar IPv4:port No or Ar [IPv6%zone]:port
An
.Ar IP
address and a
.Ar port
VNC should listen on.
The default is to listen on localhost IPv4 address and default VNC port 5900.
-Listening on an IPv6 address is not supported.
+An IPv6 address must be enclosed in square brackets and may contain an
+optional zone identifer.
.It Ar width No and Ar height
A display resolution, width and height, respectively.
If not specified, a default resolution of 1024x768 pixels will be used.
@@ -582,6 +583,20 @@ bhyve -c 2 -m 4G -w -H \\
-s 4,ahci-hd,disk.img \\
-s 5,virtio-net,tap0 \\
-s 29,fbuf,tcp=0.0.0.0:5900,w=800,h=600,wait \\
+ -s 30,xhci,tablet \\
+ -s 31,lpc -l com1,stdio \\
+ -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \\
+ uefivm
+.Ed
+.Pp
+Run a UEFI virtual machine with a VNC display that is bound to all IPv6
+addresses on port 5900.
+.Bd -literal -offset indent
+bhyve -c 2 -m 4G -w -H \\
+ -s 0,hostbridge \\
+ -s 4,ahci-hd,disk.img \\
+ -s 5,virtio-net,tap0 \\
+ -s 29,fbuf,tcp=[::]:5900,w=800,h=600 \\
-s 30,xhci,tablet \\
-s 31,lpc -l com1,stdio \\
-l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \\
Modified: head/usr.sbin/bhyve/pci_fbuf.c
==============================================================================
--- head/usr.sbin/bhyve/pci_fbuf.c Wed Oct 24 05:15:46 2018
(r339680)
+++ head/usr.sbin/bhyve/pci_fbuf.c Wed Oct 24 08:45:33 2018
(r339681)
@@ -251,13 +251,33 @@ pci_fbuf_parse_opts(struct pci_fbuf_softc *sc, char *o
xopts, config));
if (!strcmp(xopts, "tcp") || !strcmp(xopts, "rfb")) {
- /* parse host-ip:port */
- tmpstr = strsep(&config, ":");
- if (!config)
- sc->rfb_port = atoi(tmpstr);
- else {
- sc->rfb_port = atoi(config);
+ /*
+ * IPv4 -- host-ip:port
+ * IPv6 -- [host-ip%zone]:port
+ * XXX for now port is mandatory.
+ */
+ tmpstr = strsep(&config, "]");
+ if (config) {
+ if (tmpstr[0] == '[')
+ tmpstr++;
sc->rfb_host = tmpstr;
+ if (config[0] == ':')
+ config++;
+ else {
+ pci_fbuf_usage(xopts);
+ ret = -1;
+ goto done;
+ }
+ sc->rfb_port = atoi(config);
+ } else {
+ config = tmpstr;
+ tmpstr = strsep(&config, ":");
+ if (!config)
+ sc->rfb_port = atoi(tmpstr);
+ else {
+ sc->rfb_port = atoi(config);
+ sc->rfb_host = tmpstr;
+ }
}
} else if (!strcmp(xopts, "vga")) {
if (!strcmp(config, "off")) {
Modified: head/usr.sbin/bhyve/rfb.c
==============================================================================
--- head/usr.sbin/bhyve/rfb.c Wed Oct 24 05:15:46 2018 (r339680)
+++ head/usr.sbin/bhyve/rfb.c Wed Oct 24 08:45:33 2018 (r339681)
@@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$");
#include <machine/cpufunc.h>
#include <machine/specialreg.h>
#include <netinet/in.h>
+#include <netdb.h>
#include <assert.h>
#include <err.h>
@@ -960,8 +961,11 @@ sse42_supported(void)
int
rfb_init(char *hostname, int port, int wait, char *password)
{
+ int e;
+ char servname[6];
struct rfb_softc *rc;
- struct sockaddr_in sin;
+ struct addrinfo *ai;
+ struct addrinfo hints;
int on = 1;
#ifndef WITHOUT_CAPSICUM
cap_rights_t rights;
@@ -978,29 +982,43 @@ rfb_init(char *hostname, int port, int wait, char *pas
rc->password = password;
- rc->sfd = socket(AF_INET, SOCK_STREAM, 0);
+ snprintf(servname, sizeof(servname), "%d", port ? port : 5900);
+
+ if (!hostname || strlen(hostname) == 0)
+#if defined(INET)
+ hostname = "127.0.0.1";
+#elif defined(INET6)
+ hostname = "[::1]";
+#endif
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV | AI_PASSIVE;
+
+ if ((e = getaddrinfo(hostname, servname, &hints, &ai)) != 0) {
+ fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(e));
+ return(-1);
+ }
+
+ rc->sfd = socket(ai->ai_family, ai->ai_socktype, 0);
if (rc->sfd < 0) {
perror("socket");
+ freeaddrinfo(ai);
return (-1);
}
setsockopt(rc->sfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
- sin.sin_len = sizeof(sin);
- sin.sin_family = AF_INET;
- sin.sin_port = port ? htons(port) : htons(5900);
- if (hostname && strlen(hostname) > 0)
- inet_pton(AF_INET, hostname, &(sin.sin_addr));
- else
- sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
- if (bind(rc->sfd, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
+ if (bind(rc->sfd, ai->ai_addr, ai->ai_addrlen) < 0) {
perror("bind");
+ freeaddrinfo(ai);
return (-1);
}
if (listen(rc->sfd, 1) < 0) {
perror("listen");
+ freeaddrinfo(ai);
return (-1);
}
@@ -1028,5 +1046,6 @@ rfb_init(char *hostname, int port, int wait, char *pas
pthread_mutex_unlock(&rc->mtx);
}
+ freeaddrinfo(ai);
return (0);
}
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