libvirt/SOURCES/libvirt-vircgroup-extract-v...

199 lines
5.7 KiB
Diff

From 955ac573d3291bfb069664e2df9f4edb0ed09313 Mon Sep 17 00:00:00 2001
Message-Id: <955ac573d3291bfb069664e2df9f4edb0ed09313@dist-git>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 1 Jul 2019 17:06:40 +0200
Subject: [PATCH] vircgroup: extract virCgroupV1SetOwner
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
(cherry picked from commit dad061101d34a8e4b76ec3c03253ed3e83b50b2a)
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Message-Id: <644b2434def24cbb7834a7950595c110d5438166.1561993100.git.phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/util/vircgroup.c | 54 +------------------------------
src/util/vircgroupbackend.h | 7 +++++
src/util/vircgroupv1.c | 63 +++++++++++++++++++++++++++++++++++++
3 files changed, 71 insertions(+), 53 deletions(-)
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index 7789966472..e57aecb08a 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -3282,59 +3282,7 @@ int virCgroupSetOwner(virCgroupPtr cgroup,
gid_t gid,
int controllers)
{
- int ret = -1;
- size_t i;
- DIR *dh = NULL;
- int direrr;
-
- for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
- VIR_AUTOFREE(char *) base = NULL;
- struct dirent *de;
-
- if (!((1 << i) & controllers))
- continue;
-
- if (!cgroup->controllers[i].mountPoint)
- continue;
-
- if (virAsprintf(&base, "%s%s", cgroup->controllers[i].mountPoint,
- cgroup->controllers[i].placement) < 0)
- goto cleanup;
-
- if (virDirOpen(&dh, base) < 0)
- goto cleanup;
-
- while ((direrr = virDirRead(dh, &de, base)) > 0) {
- VIR_AUTOFREE(char *) entry = NULL;
-
- if (virAsprintf(&entry, "%s/%s", base, de->d_name) < 0)
- goto cleanup;
-
- if (chown(entry, uid, gid) < 0) {
- virReportSystemError(errno,
- _("cannot chown '%s' to (%u, %u)"),
- entry, uid, gid);
- goto cleanup;
- }
- }
- if (direrr < 0)
- goto cleanup;
-
- if (chown(base, uid, gid) < 0) {
- virReportSystemError(errno,
- _("cannot chown '%s' to (%u, %u)"),
- base, uid, gid);
- goto cleanup;
- }
-
- VIR_DIR_CLOSE(dh);
- }
-
- ret = 0;
-
- cleanup:
- VIR_DIR_CLOSE(dh);
- return ret;
+ return cgroup->backend->setOwner(cgroup, uid, gid, controllers);
}
diff --git a/src/util/vircgroupbackend.h b/src/util/vircgroupbackend.h
index caeec3de60..74af796c2f 100644
--- a/src/util/vircgroupbackend.h
+++ b/src/util/vircgroupbackend.h
@@ -131,6 +131,12 @@ typedef int
const char *oldroot,
const char *mountopts);
+typedef int
+(*virCgroupSetOwnerCB)(virCgroupPtr cgroup,
+ uid_t uid,
+ gid_t gid,
+ int controllers);
+
struct _virCgroupBackend {
virCgroupBackendType type;
@@ -152,6 +158,7 @@ struct _virCgroupBackend {
virCgroupAddTaskCB addTask;
virCgroupHasEmptyTasksCB hasEmptyTasks;
virCgroupBindMountCB bindMount;
+ virCgroupSetOwnerCB setOwner;
};
typedef struct _virCgroupBackend virCgroupBackend;
typedef virCgroupBackend *virCgroupBackendPtr;
diff --git a/src/util/vircgroupv1.c b/src/util/vircgroupv1.c
index d63525dfb0..c1e2583912 100644
--- a/src/util/vircgroupv1.c
+++ b/src/util/vircgroupv1.c
@@ -867,6 +867,68 @@ virCgroupV1BindMount(virCgroupPtr group,
}
+static int
+virCgroupV1SetOwner(virCgroupPtr cgroup,
+ uid_t uid,
+ gid_t gid,
+ int controllers)
+{
+ int ret = -1;
+ size_t i;
+ DIR *dh = NULL;
+ int direrr;
+
+ for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
+ VIR_AUTOFREE(char *) base = NULL;
+ struct dirent *de;
+
+ if (!((1 << i) & controllers))
+ continue;
+
+ if (!cgroup->controllers[i].mountPoint)
+ continue;
+
+ if (virAsprintf(&base, "%s%s", cgroup->controllers[i].mountPoint,
+ cgroup->controllers[i].placement) < 0)
+ goto cleanup;
+
+ if (virDirOpen(&dh, base) < 0)
+ goto cleanup;
+
+ while ((direrr = virDirRead(dh, &de, base)) > 0) {
+ VIR_AUTOFREE(char *) entry = NULL;
+
+ if (virAsprintf(&entry, "%s/%s", base, de->d_name) < 0)
+ goto cleanup;
+
+ if (chown(entry, uid, gid) < 0) {
+ virReportSystemError(errno,
+ _("cannot chown '%s' to (%u, %u)"),
+ entry, uid, gid);
+ goto cleanup;
+ }
+ }
+ if (direrr < 0)
+ goto cleanup;
+
+ if (chown(base, uid, gid) < 0) {
+ virReportSystemError(errno,
+ _("cannot chown '%s' to (%u, %u)"),
+ base, uid, gid);
+ goto cleanup;
+ }
+
+ VIR_DIR_CLOSE(dh);
+ }
+
+ ret = 0;
+
+ cleanup:
+ VIR_DIR_CLOSE(dh);
+ return ret;
+}
+
+
virCgroupBackend virCgroupV1Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V1,
@@ -887,6 +949,7 @@ virCgroupBackend virCgroupV1Backend = {
.addTask = virCgroupV1AddTask,
.hasEmptyTasks = virCgroupV1HasEmptyTasks,
.bindMount = virCgroupV1BindMount,
+ .setOwner = virCgroupV1SetOwner,
};
--
2.22.0