if (ifp->ifindex != IFINDEX_INTERNAL)
IFINDEX_RB_INSERT(vrf, ifp);
-
- /*
- * HACK: Change the interface VRF in the running configuration directly,
- * bypassing the northbound layer. This is necessary to avoid deleting
- * the interface and readding it in the new VRF, which would have
- * several implications.
- */
- if (!vrf_is_backend_netns() && yang_module_find("frr-interface")) {
- struct lyd_node *if_dnode;
- char oldpath[XPATH_MAXLEN];
- char newpath[XPATH_MAXLEN];
-
- snprintf(oldpath, sizeof(oldpath),
- "/frr-interface:lib/interface[name='%s'][vrf='%s']",
- ifp->name, old_vrf->name);
- snprintf(newpath, sizeof(newpath),
- "/frr-interface:lib/interface[name='%s'][vrf='%s']",
- ifp->name, vrf->name);
-
- if_dnode = yang_dnode_getf(running_config->dnode, "%s/vrf",
- oldpath);
-
- if (if_dnode) {
- yang_dnode_change_leaf(if_dnode, vrf->name);
- nb_running_move_tree(oldpath, newpath);
- running_config->version++;
- }
-
- vty_update_xpath(oldpath, newpath);
- }
}
struct vrf *vrf;
int ret, count;
- /*
- * This command requires special handling to maintain backward
- * compatibility. If a VRF name is not specified, it means we're willing
- * to accept any interface with the given name on any VRF. If no
- * interface is found, then a new one should be created on the default
- * VRF.
- */
if (vrf_is_backend_netns()) {
/*
* For backward compatibility, if the VRF name is not specified
if (count != 1)
vrf_name = VRF_DEFAULT_NAME;
}
+
+ snprintf(xpath_list, XPATH_MAXLEN,
+ "/frr-interface:lib/interface[name='%s:%s']", vrf_name,
+ ifname);
} else {
- /*
- * If the interface already exists, use its VRF regardless of
- * what user specified. We can't have same interface name in
- * different VRFs with VRF-lite backend.
- */
- ifp = if_lookup_by_name_all_vrf(ifname);
- if (ifp) {
- vrf_name = ifp->vrf->name;
- } else {
- if (!vrf_name)
- vrf_name = VRF_DEFAULT_NAME;
- }
+ snprintf(xpath_list, XPATH_MAXLEN,
+ "/frr-interface:lib/interface[name='%s']", ifname);
}
- snprintf(xpath_list, sizeof(xpath_list),
- "/frr-interface:lib/interface[name='%s'][vrf='%s']", ifname,
- vrf_name);
-
nb_cli_enqueue_change(vty, ".", NB_OP_CREATE, NULL);
ret = nb_cli_apply_changes_clear_pending(vty, xpath_list);
if (ret == CMD_SUCCESS) {
"Interface's name\n"
VRF_CMD_HELP_STR)
{
- if (!vrf_name)
- vrf_name = VRF_DEFAULT_NAME;
+ char xpath_list[XPATH_MAXLEN];
+ int count;
+
+ if (vrf_is_backend_netns()) {
+ /*
+ * For backward compatibility, if the VRF name is not specified
+ * and there is exactly one interface with this name in the
+ * system, use its VRF. Otherwise fallback to the default VRF.
+ */
+ if (!vrf_name) {
+ count = vrfname_by_ifname(ifname, &vrf_name);
+ if (count != 1)
+ vrf_name = VRF_DEFAULT_NAME;
+ }
+
+ snprintf(xpath_list, XPATH_MAXLEN,
+ "/frr-interface:lib/interface[name='%s:%s']", vrf_name,
+ ifname);
+ } else {
+ snprintf(xpath_list, XPATH_MAXLEN,
+ "/frr-interface:lib/interface[name='%s']", ifname);
+ }
nb_cli_enqueue_change(vty, ".", NB_OP_DESTROY, NULL);
- return nb_cli_apply_changes(
- vty, "/frr-interface:lib/interface[name='%s'][vrf='%s']",
- ifname, vrf_name);
+ return nb_cli_apply_changes(vty, xpath_list);
+}
+
+static void netns_ifname_split(const char *xpath, char *ifname, char *vrfname)
+{
+ char *delim;
+ int len;
+
+ assert(vrf_is_backend_netns());
+
+ delim = strchr(xpath, ':');
+ assert(delim);
+
+ len = delim - xpath;
+ memcpy(vrfname, xpath, len);
+ vrfname[len] = 0;
+
+ strlcpy(ifname, delim + 1, XPATH_MAXLEN);
}
static void cli_show_interface(struct vty *vty, const struct lyd_node *dnode,
bool show_defaults)
{
- const char *vrf;
+ vty_out(vty, "!\n");
- vrf = yang_dnode_get_string(dnode, "./vrf");
+ if (vrf_is_backend_netns()) {
+ char ifname[XPATH_MAXLEN];
+ char vrfname[XPATH_MAXLEN];
+
+ netns_ifname_split(yang_dnode_get_string(dnode, "./name"),
+ ifname, vrfname);
+
+ vty_out(vty, "interface %s", ifname);
+ if (!strmatch(vrfname, VRF_DEFAULT_NAME))
+ vty_out(vty, " vrf %s", vrfname);
+ } else {
+ const char *ifname = yang_dnode_get_string(dnode, "./name");
+
+ vty_out(vty, "interface %s", ifname);
+ }
- vty_out(vty, "!\n");
- vty_out(vty, "interface %s", yang_dnode_get_string(dnode, "./name"));
- if (!strmatch(vrf, VRF_DEFAULT_NAME))
- vty_out(vty, " vrf %s", vrf);
vty_out(vty, "\n");
}
static int lib_interface_create(struct nb_cb_create_args *args)
{
const char *ifname;
- const char *vrfname;
struct interface *ifp;
ifname = yang_dnode_get_string(args->dnode, "./name");
- vrfname = yang_dnode_get_string(args->dnode, "./vrf");
switch (args->event) {
case NB_EV_VALIDATE:
+ if (vrf_is_backend_netns()) {
+ char ifname_ns[XPATH_MAXLEN];
+ char vrfname_ns[XPATH_MAXLEN];
+
+ netns_ifname_split(ifname, ifname_ns, vrfname_ns);
+
+ if (strlen(ifname_ns) > 16) {
+ snprintf(
+ args->errmsg, args->errmsg_len,
+ "Maximum interface name length is 16 characters");
+ return NB_ERR_VALIDATION;
+ }
+ if (strlen(vrfname_ns) > 36) {
+ snprintf(
+ args->errmsg, args->errmsg_len,
+ "Maximum VRF name length is 36 characters");
+ return NB_ERR_VALIDATION;
+ }
+ } else {
+ if (strlen(ifname) > 16) {
+ snprintf(
+ args->errmsg, args->errmsg_len,
+ "Maximum interface name length is 16 characters");
+ return NB_ERR_VALIDATION;
+ }
+ }
+ break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
break;
case NB_EV_APPLY:
- ifp = if_get_by_name(ifname, VRF_UNKNOWN, vrfname);
+ if (vrf_is_backend_netns()) {
+ char ifname_ns[XPATH_MAXLEN];
+ char vrfname_ns[XPATH_MAXLEN];
+
+ netns_ifname_split(ifname, ifname_ns, vrfname_ns);
+
+ ifp = if_get_by_name(ifname_ns, VRF_UNKNOWN,
+ vrfname_ns);
+ } else {
+ ifp = if_get_by_name(ifname, VRF_UNKNOWN,
+ VRF_DEFAULT_NAME);
+ }
ifp->configured = true;
nb_running_set_entry(args->dnode, ifp);
{
const struct interface *ifp = args->list_entry;
- args->keys->num = 2;
- strlcpy(args->keys->key[0], ifp->name, sizeof(args->keys->key[0]));
- strlcpy(args->keys->key[1], ifp->vrf->name, sizeof(args->keys->key[1]));
+ args->keys->num = 1;
+
+ if (vrf_is_backend_netns())
+ snprintf(args->keys->key[0], sizeof(args->keys->key[0]),
+ "%s:%s", ifp->vrf->name, ifp->name);
+ else
+ snprintf(args->keys->key[0], sizeof(args->keys->key[0]), "%s",
+ ifp->name);
return NB_OK;
}
static const void *
lib_interface_lookup_entry(struct nb_cb_lookup_entry_args *args)
{
- const char *ifname = args->keys->key[0];
- const char *vrfname = args->keys->key[1];
- struct vrf *vrf = vrf_lookup_by_name(vrfname);
+ if (vrf_is_backend_netns()) {
+ char ifname[XPATH_MAXLEN];
+ char vrfname[XPATH_MAXLEN];
+ struct vrf *vrf;
+
+ netns_ifname_split(args->keys->key[0], ifname, vrfname);
- return vrf ? if_lookup_by_name(ifname, vrf->vrf_id) : NULL;
+ vrf = vrf_lookup_by_name(vrfname);
+
+ return vrf ? if_lookup_by_name(ifname, vrf->vrf_id) : NULL;
+ } else {
+ return if_lookup_by_name_all_vrf(args->keys->key[0]);
+ }
}
/*
return NB_OK;
}
+/*
+ * XPath: /frr-interface:lib/interface/vrf
+ */
+static struct yang_data *
+lib_interface_vrf_get_elem(struct nb_cb_get_elem_args *args)
+{
+ const struct interface *ifp = args->list_entry;
+
+ return yang_data_new_string(args->xpath, ifp->vrf->name);
+}
+
/*
* XPath: /frr-interface:lib/interface/state/if-index
*/
.cli_show = cli_show_interface_desc,
},
},
+ {
+ .xpath = "/frr-interface:lib/interface/vrf",
+ .cbs = {
+ .get_elem = lib_interface_vrf_get_elem,
+ }
+ },
{
.xpath = "/frr-interface:lib/interface/state/if-index",
.cbs = {
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