12:31 p.m.
This version differs from the patch set
"conf: Check migration_host is valid or not during libvirt restarts"
I posted 2 weeks ago, I droped checking the migration_host on target
host. and find an issue when setting migration_host.
Chen Fan (3):
migration: add migration_host support for Ipv6 address without
brackets
conf: Check migration_host is localhost or not during restart
conf: Check migration_address is valid or not during restart
src/qemu/qemu.conf | 2 +-
src/qemu/qemu_conf.c | 21 +++++++++++++++++++++
src/qemu/qemu_migration.c | 19 +++++++++++++++----
src/qemu/test_libvirtd_qemu.aug.in | 2 +-
4 files changed, 38 insertions(+), 6 deletions(-)
--
1.9.3
12:31 p.m.
New subject: [libvirt] [PATCH v1 1/3] migration: add migration_host support for Ipv6 address without brackets
when 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(a)cn.fujitsu.com>
---
src/qemu/qemu_migration.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index e4b664b..c7eb305 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2850,11 +2850,22 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
goto cleanup;
if (migrateHost != NULL) {
- if (virSocketAddrIsNumeric(migrateHost) &&
- virSocketAddrParse(NULL, migrateHost, AF_UNSPEC) < 0)
- goto cleanup;
+ virSocketAddr migrateHostSocket;
+ bool migrateHostisIpv6Address = false;
+
+ if (virSocketAddrIsNumeric(migrateHost)) {
+ if (virSocketAddrParse(&migrateHostSocket, migrateHost, AF_UNSPEC)
< 0)
+ goto cleanup;
+
+ if (VIR_SOCKET_ADDR_IS_FAMILY(&migrateHostSocket, AF_INET6)) {
+ migrateHostisIpv6Address = true;
+ }
+ }
- if (VIR_STRDUP(hostname, migrateHost) < 0)
+ if ((migrateHostisIpv6Address &&
+ virAsprintf(&hostname, "[%s]", migrateHost) < 0) ||
+ (!migrateHostisIpv6Address &&
+ virAsprintf(&hostname, "%s", migrateHost) < 0))
goto cleanup;
} else {
if ((hostname = virGetHostname()) == NULL)
--
1.9.3
9:34 p.m.
New subject: [libvirt] [PATCH v1 1/3] migration: add migration_host support for Ipv6 address without brackets
On 09/12/2014 06:31 AM, Chen Fan wrote:
when 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(a)cn.fujitsu.com>
---
src/qemu/qemu_migration.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index e4b664b..c7eb305 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2850,11 +2850,22 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
goto cleanup;
if (migrateHost != NULL) {
- if (virSocketAddrIsNumeric(migrateHost) &&
- virSocketAddrParse(NULL, migrateHost, AF_UNSPEC) < 0)
- goto cleanup;
Hmm, I'm not sure what this check was doing - if the address was succesfully
parsed in AddrIsNumeric, it should be parsed by virSocketAddrParse as well.
+ virSocketAddr migrateHostSocket;
+ bool migrateHostisIpv6Address = false;
+
+ if (virSocketAddrIsNumeric(migrateHost)) {
+ if (virSocketAddrParse(&migrateHostSocket, migrateHost, AF_UNSPEC)
< 0)
+ goto cleanup;
+
+ if (VIR_SOCKET_ADDR_IS_FAMILY(&migrateHostSocket, AF_INET6)) {
+ migrateHostisIpv6Address = true;
+ }
+ }
We also do this parsing to chceck for numeric IPv6 addresses in
qemuMigrationPrepareAny. It would be nicer to create a new
'virSocketAddrIsNumericIPv6' function and use it in both of them.
Jan
- if (VIR_STRDUP(hostname, migrateHost) < 0)
+ if ((migrateHostisIpv6Address &&
+ virAsprintf(&hostname, "[%s]", migrateHost) < 0) ||
+ (!migrateHostisIpv6Address &&
+ virAsprintf(&hostname, "%s", migrateHost) < 0))
goto cleanup;
} else {
if ((hostname = virGetHostname()) == NULL)
10 a.m.
New subject: [libvirt] [PATCH v1 1/3] migration: add migration_host support for Ipv6 address without brackets
On Mon, 2014-09-22 at 15:34 +0200, Ján Tomko wrote:
On 09/12/2014 06:31 AM, Chen Fan wrote:
> when 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(a)cn.fujitsu.com>
> ---
> src/qemu/qemu_migration.c | 19 +++++++++++++++----
> 1 file changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
> index e4b664b..c7eb305 100644
> --- a/src/qemu/qemu_migration.c
> +++ b/src/qemu/qemu_migration.c
> @@ -2850,11 +2850,22 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
> goto cleanup;
>
> if (migrateHost != NULL) {
> - if (virSocketAddrIsNumeric(migrateHost) &&
> - virSocketAddrParse(NULL, migrateHost, AF_UNSPEC) < 0)
> - goto cleanup;
Hmm, I'm not sure what this check was doing - if the address was succesfully
parsed in AddrIsNumeric, it should be parsed by virSocketAddrParse as well.
agreed.
> + virSocketAddr migrateHostSocket;
> + bool migrateHostisIpv6Address = false;
> +
> + if (virSocketAddrIsNumeric(migrateHost)) {
> + if (virSocketAddrParse(&migrateHostSocket, migrateHost,
AF_UNSPEC) < 0)
> + goto cleanup;
> +
> + if (VIR_SOCKET_ADDR_IS_FAMILY(&migrateHostSocket, AF_INET6)) {
> + migrateHostisIpv6Address = true;
> + }
> + }
>
We also do this parsing to chceck for numeric IPv6 addresses in
qemuMigrationPrepareAny. It would be nicer to create a new
'virSocketAddrIsNumericIPv6' function and use it in both of them.
I will follow this.
Thanks,
Chen
Jan
> - if (VIR_STRDUP(hostname, migrateHost) < 0)
> + if ((migrateHostisIpv6Address &&
> + virAsprintf(&hostname, "[%s]", migrateHost) < 0)
||
> + (!migrateHostisIpv6Address &&
> + virAsprintf(&hostname, "%s", migrateHost) < 0))
> goto cleanup;
> } else {
> if ((hostname = virGetHostname()) == NULL)
>
12:33 p.m.
New subject: [libvirt] [PATCH v1 2/3] conf: Check migration_host is localhost or not during restart
Signed-off-by: Chen Fan <chen.fan.fnst(a)cn.fujitsu.com>
---
src/qemu/qemu_conf.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ac10b64..013f3de 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -707,6 +707,17 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);
GET_VALUE_STR("migration_host", cfg->migrateHost);
+ if (cfg->migrateHost) {
+ if (STRPREFIX(cfg->migrateHost, "localhost") ||
+ STREQ(cfg->migrateHost, "127.0.0.1") ||
+ STREQ(cfg->migrateHost, "::1") ||
+ STREQ(cfg->migrateHost, "[::1]")) {
+ virReportError(VIR_ERR_CONF_SYNTAX, "%s",
+ _("migration_host must be a valid address or
hostname"));
+ goto cleanup;
+ }
+ }
+
GET_VALUE_STR("migration_address", cfg->migrationAddress);
GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);
--
1.9.3
9:34 p.m.
New subject: [libvirt] [PATCH v1 2/3] conf: Check migration_host is localhost or not during restart
On 09/12/2014 06:33 AM, Chen Fan wrote:
Signed-off-by: Chen Fan <chen.fan.fnst(a)cn.fujitsu.com>
---
src/qemu/qemu_conf.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ac10b64..013f3de 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -707,6 +707,17 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);
GET_VALUE_STR("migration_host", cfg->migrateHost);
+ if (cfg->migrateHost) {
+ if (STRPREFIX(cfg->migrateHost, "localhost") ||
+ STREQ(cfg->migrateHost, "127.0.0.1") ||
+ STREQ(cfg->migrateHost, "::1") ||
+ STREQ(cfg->migrateHost, "[::1]")) {\
I think we need a 'virSocketAddrIsLocalhost' function similar to
virSocketAddrIsWildcard, which would check any numeric represnation of the
address:
if (STRPREFIX(cfg->migrateHost, "localhost") ||
virSocketAddrIsLocalhost(cfg->migrateHost))
+ virReportError(VIR_ERR_CONF_SYNTAX, "%s",
+ _("migration_host must be a valid address or
hostname"));
Something more specific, like: "migration_host must not be localhost" is more
user-friendly.
Jan
+ goto cleanup;
+ }
+ }
+
GET_VALUE_STR("migration_address", cfg->migrationAddress);
GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);
9:11 a.m.
New subject: [libvirt] [PATCH v1 2/3] conf: Check migration_host is localhost or not during restart
On Mon, 2014-09-22 at 15:34 +0200, Ján Tomko wrote:
On 09/12/2014 06:33 AM, Chen Fan wrote:
> Signed-off-by: Chen Fan <chen.fan.fnst(a)cn.fujitsu.com>
> ---
> src/qemu/qemu_conf.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
> index ac10b64..013f3de 100644
> --- a/src/qemu/qemu_conf.c
> +++ b/src/qemu/qemu_conf.c
> @@ -707,6 +707,17 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
> GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);
>
> GET_VALUE_STR("migration_host", cfg->migrateHost);
> + if (cfg->migrateHost) {
> + if (STRPREFIX(cfg->migrateHost, "localhost") ||
> + STREQ(cfg->migrateHost, "127.0.0.1") ||
> + STREQ(cfg->migrateHost, "::1") ||
> + STREQ(cfg->migrateHost, "[::1]")) {\
I think we need a 'virSocketAddrIsLocalhost' function similar to
virSocketAddrIsWildcard, which would check any numeric represnation of the
address:
if (STRPREFIX(cfg->migrateHost, "localhost") ||
virSocketAddrIsLocalhost(cfg->migrateHost))
It's a good point.
> + virReportError(VIR_ERR_CONF_SYNTAX, "%s",
> + _("migration_host must be a valid address or
hostname"));
Something more specific, like: "migration_host must not be localhost" is more
user-friendly.
I will update the output.
Thanks,
Chen
Jan
> + goto cleanup;
> + }
> + }
> +
> GET_VALUE_STR("migration_address", cfg->migrationAddress);
>
> GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);
>
12:33 p.m.
New subject: [libvirt] [PATCH v1 3/3] conf: Check migration_address is valid or not during restart
When enabling the migration_address option, by default it is
set to "127.0.0.1", but it's not a valid address for migration.
so we should add verification and set the default migration_address
to "0.0.0.0".
Signed-off-by: Chen Fan <chen.fan.fnst(a)cn.fujitsu.com>
---
src/qemu/qemu.conf | 2 +-
src/qemu/qemu_conf.c | 10 ++++++++++
src/qemu/test_libvirtd_qemu.aug.in | 2 +-
3 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
index 79bba36..666c303 100644
--- a/src/qemu/qemu.conf
+++ b/src/qemu/qemu.conf
@@ -459,7 +459,7 @@
# Override the listen address for all incoming migrations. Defaults to
# 0.0.0.0, or :: if both host and qemu are capable of IPv6.
-#migration_address = "127.0.0.1"
+#migration_address = "0.0.0.0"
# The default hostname or IP address which will be used by a migration
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 013f3de..2cbf2a6 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -719,6 +719,16 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
}
GET_VALUE_STR("migration_address", cfg->migrationAddress);
+ if (cfg->migrationAddress) {
+ if (STRPREFIX(cfg->migrationAddress, "localhost") ||
+ STREQ(cfg->migrationAddress, "127.0.0.1") ||
+ STREQ(cfg->migrationAddress, "::1") ||
+ STREQ(cfg->migrationAddress, "[::1]")) {
+ virReportError(VIR_ERR_CONF_SYNTAX, "%s",
+ _("migration_address must be a valid address or
hostname"));
+ goto cleanup;
+ }
+ }
GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);
diff --git a/src/qemu/test_libvirtd_qemu.aug.in b/src/qemu/test_libvirtd_qemu.aug.in
index d2bc2c0..30fd27e 100644
--- a/src/qemu/test_libvirtd_qemu.aug.in
+++ b/src/qemu/test_libvirtd_qemu.aug.in
@@ -69,7 +69,7 @@ module Test_libvirtd_qemu =
{ "keepalive_interval" = "5" }
{ "keepalive_count" = "5" }
{ "seccomp_sandbox" = "1" }
-{ "migration_address" = "127.0.0.1" }
+{ "migration_address" = "0.0.0.0" }
{ "migration_host" = "host.example.com" }
{ "migration_port_min" = "49152" }
{ "migration_port_max" = "49215" }
--
1.9.3
3:27 p.m.
Hi jiri,
Please help to review this patches.
Thanks,
Chen
On Fri, 2014-09-12 at 12:32 +0800, Chen Fan wrote:
This version differs from the patch set
"conf: Check migration_host is valid or not during libvirt restarts"
I posted 2 weeks ago, I droped checking the migration_host on target
host. and find an issue when setting migration_host.
Chen Fan (3):
migration: add migration_host support for Ipv6 address without
brackets
conf: Check migration_host is localhost or not during restart
conf: Check migration_address is valid or not during restart
src/qemu/qemu.conf | 2 +-
src/qemu/qemu_conf.c | 21 +++++++++++++++++++++
src/qemu/qemu_migration.c | 19 +++++++++++++++----
src/qemu/test_libvirtd_qemu.aug.in | 2 +-
4 files changed, 38 insertions(+), 6 deletions(-)
3691
days inactive
3702
days old
8 comments
3 participants
participants (3)
-
Chen Fan -
Chen, Fan
-
Ján Tomko