transmit pair of veth names to criu via the option --veth-pair

v2: unset IFS and delete eval from vps-rst

Signed-off-by: Andrey Vagin <ava...@openvz.org>
---
 scripts/vps-rst.in | 15 +++++++++++++--
 src/lib/hooks_ct.c | 18 ++++++++++++++----
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/scripts/vps-rst.in b/scripts/vps-rst.in
index b6c2f84..629b1b3 100755
--- a/scripts/vps-rst.in
+++ b/scripts/vps-rst.in
@@ -25,15 +25,24 @@
 #   VE_ROOT       - container root directory
 #   VE_DUMP_DIR   - directory for saving dump files
 #   VE_STATE_FILE - file to write CT init PID to
+#   VE_VETH_DEVS  - pair of veth names (CT=HW\n)
 
 exec 1>&2
 . @SCRIPTDIR@/vps-functions
 
+veth_args=
+IFS="
+"
+for dev in $VE_VETH_DEVS; do
+       veth_args="$veth_args --veth-pair $dev"
+done
+unset IFS
+
 vzcheckvar VE_ROOT
 vzcheckvar VE_STATE_FILE
 vzcheckvar VE_DUMP_DIR
 
-criu restore   --file-locks            \
+criu restore   --file-locks    \
                --tcp-established       \
                --evasive-devices       \
                --link-remap            \
@@ -42,7 +51,9 @@ criu restore  --file-locks            \
                -D $VE_DUMP_DIR         \
                -o restore.log          \
                -vvvv                   \
-               --pidfile $VE_STATE_FILE
+               --pidfile $VE_STATE_FILE\
+               $veth_args
+
 if [ $? -eq 0 ]; then
        rm -rf $VE_DUMP_DIR
 else
diff --git a/src/lib/hooks_ct.c b/src/lib/hooks_ct.c
index 21e6823..1580b8e 100644
--- a/src/lib/hooks_ct.c
+++ b/src/lib/hooks_ct.c
@@ -921,14 +921,15 @@ static int ct_chkpnt(vps_handler *h, envid_t veid,
        return ret;
 }
 
-static int ct_restore_fn(vps_handler *h, envid_t veid, const fs_param *fs,
+static int ct_restore_fn(vps_handler *h, envid_t veid, const vps_res *res,
                          int wait_p, int old_wait_p, int err_p, void *data)
 {
-       char *argv[2], *env[4];
+       char *argv[2], *env[5];
        const char *dumpfile = NULL;
        const char *statefile = NULL;
        cpt_param *param = data;
-       char buf[STR_SIZE];
+       veth_dev *veth;
+       char buf[STR_SIZE], *pbuf;
        pid_t pid = -1;
        int ret;
        FILE *sfile;
@@ -948,7 +949,16 @@ static int ct_restore_fn(vps_handler *h, envid_t veid, 
const fs_param *fs,
        env[1] = strdup(buf);
        snprintf(buf, sizeof(buf), "VE_STATE_FILE=%s", statefile);
        env[2] = strdup(buf);
-       env[3] = NULL;
+
+       pbuf = buf;
+       pbuf += snprintf(buf, sizeof(buf), "VE_VETH_DEVS=");;
+       list_for_each(veth, &res->veth.dev, list) {
+               pbuf += snprintf(pbuf, sizeof(buf) - (pbuf - buf),
+                               "%s=%s\n", veth->dev_name_ve, veth->dev_name);
+       }
+       env[3] = strdup(buf);
+
+       env[4] = NULL;
 
        ret = run_script(argv[0], argv, env, 0);
        free_arg(env);
-- 
1.8.2

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