[libvirt] [PATCH v2] lxc: Include support to lxc version 3.0 or higher.

Julio Faracco posted 1 patch 3 years, 6 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/libvirt tags/patchew/20181105185724.31412-1-jcfaracco@gmail.com
src/lxc/lxc_native.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
[libvirt] [PATCH v2] lxc: Include support to lxc version 3.0 or higher.
Posted by Julio Faracco 3 years, 6 months ago
This patch introduce the new settings for LXC 3.0 or higher. The older
versions keep the compatibility to deprecated settings for LXC, but
after release 3.0, the compatibility was removed. This commit adds the
support to the refactored settings.

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
---
 src/lxc/lxc_native.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c
index cbdec723dd..8604cbaf46 100644
--- a/src/lxc/lxc_native.c
+++ b/src/lxc/lxc_native.c
@@ -200,7 +200,9 @@ lxcSetRootfs(virDomainDefPtr def,
     int type = VIR_DOMAIN_FS_TYPE_MOUNT;
     VIR_AUTOFREE(char *) value = NULL;
 
-    if (virConfGetValueString(properties, "lxc.rootfs", &value) <= 0)
+    if (virConfGetValueString(properties, "lxc.rootfs", &value) <= 0 &&
+        /* Legacy config keys were removed after release 3.0. */
+        virConfGetValueString(properties, "lxc.rootfs.path", &value) <= 0)
         return -1;
 
     if (STRPREFIX(value, "/dev/"))
@@ -684,7 +686,9 @@ lxcCreateConsoles(virDomainDefPtr def, virConfPtr properties)
     virDomainChrDefPtr console;
     size_t i;
 
-    if (virConfGetValueString(properties, "lxc.tty", &value) <= 0)
+    if (virConfGetValueString(properties, "lxc.tty", &value) <= 0 &&
+        /* Legacy config keys were removed after release 3.0. */
+        virConfGetValueString(properties, "lxc.tty.max", &value) <= 0)
         return 0;
 
     if (virStrToLong_i(value, NULL, 10, &nbttys) < 0) {
@@ -724,7 +728,7 @@ lxcIdmapWalkCallback(const char *name, virConfValuePtr value, void *data)
     char type;
     unsigned long start, target, count;
 
-    if (STRNEQ(name, "lxc.id_map") || !value->str)
+    if (STRNEQ(name, "lxc.id_map") || STRNEQ(name, "lxc.idmap") || !value->str)
         return 0;
 
     if (sscanf(value->str, "%c %lu %lu %lu", &type,
@@ -1041,7 +1045,9 @@ lxcParseConfigString(const char *config,
     if (VIR_STRDUP(vmdef->os.init, "/sbin/init") < 0)
         goto error;
 
-    if (virConfGetValueString(properties, "lxc.utsname", &value) <= 0 ||
+    if ((virConfGetValueString(properties, "lxc.utsname", &value) <= 0 &&
+         /* Legacy config keys were removed after release 3.0. */
+         virConfGetValueString(properties, "lxc.uts.name", &value) <= 0) ||
         VIR_STRDUP(vmdef->name, value) < 0)
         goto error;
     if (!vmdef->name && (VIR_STRDUP(vmdef->name, "unnamed") < 0))
@@ -1051,7 +1057,9 @@ lxcParseConfigString(const char *config,
         goto error;
 
     /* Look for fstab: we shouldn't have it */
-    if (virConfGetValue(properties, "lxc.mount")) {
+    if (virConfGetValue(properties, "lxc.mount") ||
+        /* Legacy config keys were removed after release 3.0. */
+        virConfGetValue(properties, "lxc.mount.fstab")) {
         virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
                        _("lxc.mount found, use lxc.mount.entry lines instead"));
         goto error;
-- 
2.17.1

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Re: [libvirt] [PATCH v2] lxc: Include support to lxc version 3.0 or higher.
Posted by Pino Toscano 3 years, 6 months ago
On Monday, 5 November 2018 19:57:24 CET Julio Faracco wrote:
> This patch introduce the new settings for LXC 3.0 or higher. The older
> versions keep the compatibility to deprecated settings for LXC, but
> after release 3.0, the compatibility was removed. This commit adds the
> support to the refactored settings.

Shouldn't it be better to check first for the new names of the
configuration strings, using the pre-3.0 ones as fallback option?

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