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qemuBuildChannelGuestfwdNetdevProps: Convert to generating JSON props

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Syntax of guestfwd channel also needs to be modified to conform to the
QAPI schema.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Peter Krempa 2020-05-15 09:46:08 +02:00
parent da820e1c22
commit 11758f9245
3 changed files with 37 additions and 8 deletions
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37
src/qemu/qemu_command.c
View File

@ -8577,6 +8577,7 @@ qemuBuildChannelsCommandLine(virLogManagerPtr logManager,
for (i = 0; i < def->nchannels; i++) {
virDomainChrDefPtr channel = def->channels[i];
g_autofree char *chardevstr = NULL;
g_autoptr(virJSONValue) netdevprops = NULL;
g_autofree char *netdevstr = NULL;
if (!(chardevstr = qemuBuildChrChardevStr(logManager, secManager,
@ -8591,8 +8592,12 @@ qemuBuildChannelsCommandLine(virLogManagerPtr logManager,
switch ((virDomainChrChannelTargetType) channel->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
if (!(netdevstr = qemuBuildChannelGuestfwdNetdevProps(channel)))
if (!(netdevprops = qemuBuildChannelGuestfwdNetdevProps(channel)))
return -1;
if (!(netdevstr = virQEMUBuildNetdevCommandlineFromJSON(netdevprops)))
return -1;
virCommandAddArgList(cmd, "-netdev", netdevstr, NULL);
break;
@ -9860,19 +9865,39 @@ qemuBuildParallelChrDeviceStr(char **deviceStr,
}
char *
virJSONValuePtr
qemuBuildChannelGuestfwdNetdevProps(virDomainChrDefPtr chr)
{
g_autoptr(virJSONValue) guestfwdarr = virJSONValueNewArray();
g_autoptr(virJSONValue) guestfwdstrobj = virJSONValueNewObject();
g_autofree char *addr = NULL;
int port;
virJSONValuePtr ret = NULL;
if (!(addr = virSocketAddrFormat(chr->target.addr)))
return NULL;
port = virSocketAddrGetPort(chr->target.addr);
/* this may seem weird, but qemu indeed decided that 'guestfwd' parameter
* is an array of objects which have just one member named 'str' which
* contains the description */
if (virJSONValueObjectAppendStringPrintf(guestfwdstrobj, "str",
"tcp:%s:%i-chardev:char%s",
addr,
virSocketAddrGetPort(chr->target.addr),
chr->info.alias) < 0)
return NULL;
return g_strdup_printf("user,guestfwd=tcp:%s:%i-chardev:char%s,id=%s",
addr, port, chr->info.alias, chr->info.alias);
if (virJSONValueArrayAppend(guestfwdarr, guestfwdstrobj) < 0)
return NULL;
guestfwdstrobj = NULL;
if (virJSONValueObjectCreate(&ret,
"s:type", "user",
"a:guestfwd", &guestfwdarr,
"s:id", chr->info.alias,
NULL) < 0)
return NULL;
return ret;
}

2
src/qemu/qemu_command.h
View File

@ -86,7 +86,7 @@ qemuBuildChrDeviceStr(char **deviceStr,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps);
char *
virJSONValuePtr
qemuBuildChannelGuestfwdNetdevProps(virDomainChrDefPtr chr);
virJSONValuePtr qemuBuildHostNetStr(virDomainNetDefPtr net,

6
src/qemu/qemu_hotplug.c
View File

@ -2113,6 +2113,7 @@ int qemuDomainAttachChrDevice(virQEMUDriverPtr driver,
virErrorPtr orig_err;
virDomainDefPtr vmdef = vm->def;
g_autofree char *devstr = NULL;
g_autoptr(virJSONValue) netdevprops = NULL;
g_autofree char *netdevstr = NULL;
virDomainChrSourceDefPtr dev = chr->source;
g_autofree char *charAlias = NULL;
@ -2153,7 +2154,10 @@ int qemuDomainAttachChrDevice(virQEMUDriverPtr driver,
teardowncgroup = true;
if (guestfwd) {
if (!(netdevstr = qemuBuildChannelGuestfwdNetdevProps(chr)))
if (!(netdevprops = qemuBuildChannelGuestfwdNetdevProps(chr)))
goto cleanup;
if (!(netdevstr = virQEMUBuildNetdevCommandlineFromJSON(netdevprops)))
goto cleanup;
} else {
if (qemuBuildChrDeviceStr(&devstr, vmdef, chr, priv->qemuCaps) < 0)