[libvirt] [PATCH v3 1/3] migration: add migration_host support for Ipv6 address without brackets
Chen Fan
chen.fan.fnst at cn.fujitsu.com
Tue Oct 7 04:07:30 UTC 2014
if specifying migration_host to an Ipv6 address without brackets,
it was resolved to an incorrect address, such as:
tcp:2001:0DB8::1428:4444,
but the correct address should be:
tcp:[2001:0DB8::1428]:4444
so we should add brackets when parsing it.
Signed-off-by: Chen Fan <chen.fan.fnst at cn.fujitsu.com>
---
src/libvirt_private.syms | 2 +-
src/qemu/qemu_migration.c | 49 +++++++++++++++++++++++------------------------
src/util/virsocketaddr.c | 19 +++++++++---------
src/util/virsocketaddr.h | 2 +-
tests/sockettest.c | 2 +-
5 files changed, 36 insertions(+), 38 deletions(-)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 7cbc35b..8ab1394 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1911,11 +1911,11 @@ virSocketAddrGetIpPrefix;
virSocketAddrGetPort;
virSocketAddrGetRange;
virSocketAddrIsNetmask;
-virSocketAddrIsNumeric;
virSocketAddrIsPrivate;
virSocketAddrIsWildcard;
virSocketAddrMask;
virSocketAddrMaskByPrefix;
+virSocketAddrNumericFamily;
virSocketAddrParse;
virSocketAddrParseIPv4;
virSocketAddrParseIPv6;
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 284cd5a..e135249 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2605,7 +2605,6 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver,
if (VIR_STRDUP(migrateFrom, "stdio") < 0)
goto cleanup;
} else {
- virSocketAddr listenAddressSocket;
bool encloseAddress = false;
bool hostIPv6Capable = false;
bool qemuIPv6Capable = false;
@@ -2627,28 +2626,21 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver,
virObjectUnref(qemuCaps);
if (listenAddress) {
- if (virSocketAddrIsNumeric(listenAddress)) {
- /* listenAddress is numeric IPv4 or IPv6 */
- if (virSocketAddrParse(&listenAddressSocket, listenAddress, AF_UNSPEC) < 0)
+ if (virSocketAddrNumericFamily(listenAddress) == AF_INET6) {
+ if (!qemuIPv6Capable) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("qemu isn't capable of IPv6"));
goto cleanup;
-
- /* address parsed successfully */
- if (VIR_SOCKET_ADDR_IS_FAMILY(&listenAddressSocket, AF_INET6)) {
- if (!qemuIPv6Capable) {
- virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
- _("qemu isn't capable of IPv6"));
- goto cleanup;
- }
- if (!hostIPv6Capable) {
- virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
- _("host isn't capable of IPv6"));
- goto cleanup;
- }
- /* IPv6 address must be escaped in brackets on the cmd line */
- encloseAddress = true;
}
+ if (!hostIPv6Capable) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("host isn't capable of IPv6"));
+ goto cleanup;
+ }
+ /* IPv6 address must be escaped in brackets on the cmd line */
+ encloseAddress = true;
} else {
- /* listenAddress is a hostname */
+ /* listenAddress is a hostname or IPv4 */
}
} else if (qemuIPv6Capable && hostIPv6Capable) {
/* Listen on :: instead of 0.0.0.0 if QEMU understands it
@@ -2950,15 +2942,17 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
* to be a correct hostname which refers to the target machine).
*/
if (uri_in == NULL) {
+ bool encloseAddress = false;
+ const char *incFormat;
+
if (virPortAllocatorAcquire(driver->migrationPorts, &port) < 0)
goto cleanup;
if (migrateHost != NULL) {
- if (virSocketAddrIsNumeric(migrateHost) &&
- virSocketAddrParse(NULL, migrateHost, AF_UNSPEC) < 0)
- goto cleanup;
+ if (virSocketAddrNumericFamily(migrateHost) == AF_INET6)
+ encloseAddress = true;
- if (VIR_STRDUP(hostname, migrateHost) < 0)
+ if (VIR_STRDUP(hostname, migrateHost) < 0)
goto cleanup;
} else {
if ((hostname = virGetHostname()) == NULL)
@@ -2977,7 +2971,12 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
* compatibility with old targets. We at least make the
* new targets accept both syntaxes though.
*/
- if (virAsprintf(uri_out, "tcp:%s:%d", hostname, port) < 0)
+ if (encloseAddress)
+ incFormat = "%s:[%s]:%d";
+ else
+ incFormat = "%s:%s:%d";
+
+ if (virAsprintf(uri_out, incFormat, "tcp", hostname, port) < 0)
goto cleanup;
} else {
bool well_formed_uri;
diff --git a/src/util/virsocketaddr.c b/src/util/virsocketaddr.c
index 7cc4bde..7fe7a15 100644
--- a/src/util/virsocketaddr.c
+++ b/src/util/virsocketaddr.c
@@ -856,26 +856,25 @@ virSocketAddrGetIpPrefix(const virSocketAddr *address,
}
/**
- * virSocketAddrIsNumeric:
+ * virSocketAddrNumericFamily:
* @address: address to check
*
- * Check if passed address is an IP address in numeric format. For
- * instance, for 0.0.0.0 true is returned, for 'examplehost"
- * false is returned.
+ * Check if passed address is an IP address in numeric format. and
+ * return the address family, otherwise return 0.
*
- * Returns: true if @address is an IP address,
- * false otherwise
+ * Returns: AF_INET or AF_INET6 if @address is an numeric IP address,
+ * -1 otherwise.
*/
-bool
-virSocketAddrIsNumeric(const char *address)
+int
+virSocketAddrNumericFamily(const char *address)
{
struct addrinfo *res;
unsigned short family;
if (virSocketAddrParseInternal(&res, address, AF_UNSPEC, false) < 0)
- return false;
+ return -1;
family = res->ai_addr->sa_family;
freeaddrinfo(res);
- return family == AF_INET || family == AF_INET6;
+ return family;
}
diff --git a/src/util/virsocketaddr.h b/src/util/virsocketaddr.h
index 27defa0..35c9c1a 100644
--- a/src/util/virsocketaddr.h
+++ b/src/util/virsocketaddr.h
@@ -125,5 +125,5 @@ bool virSocketAddrIsPrivate(const virSocketAddr *addr);
bool virSocketAddrIsWildcard(const virSocketAddr *addr);
-bool virSocketAddrIsNumeric(const char *address);
+int virSocketAddrNumericFamily(const char *address);
#endif /* __VIR_SOCKETADDR_H__ */
diff --git a/tests/sockettest.c b/tests/sockettest.c
index 68b0536..abf7350 100644
--- a/tests/sockettest.c
+++ b/tests/sockettest.c
@@ -229,7 +229,7 @@ testIsNumericHelper(const void *opaque)
{
const struct testIsNumericData *data = opaque;
- if (virSocketAddrIsNumeric(data->addr))
+ if (virSocketAddrNumericFamily(data->addr) != -1)
return data->pass ? 0 : -1;
return data->pass ? -1 : 0;
}
--
1.9.3
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