diff options
| -rw-r--r-- | yang/frr-zebra.yang | 27 | ||||
| -rw-r--r-- | zebra/rtadv.c | 112 | ||||
| -rw-r--r-- | zebra/rtadv.h | 6 | ||||
| -rw-r--r-- | zebra/zebra_nb.c | 14 | ||||
| -rw-r--r-- | zebra/zebra_nb.h | 8 | ||||
| -rw-r--r-- | zebra/zebra_nb_config.c | 79 |
6 files changed, 159 insertions, 87 deletions
diff --git a/yang/frr-zebra.yang b/yang/frr-zebra.yang index 66107d1a19..c540e922dc 100644 --- a/yang/frr-zebra.yang +++ b/yang/frr-zebra.yang @@ -2607,6 +2607,33 @@ module frr-zebra { // `choice control-adv-prefixes`. } } + container rdnss { + description + "A list of recursive DNS server addresses that are placed + in Recursive DNS Server (RDNSS) options in Router + Advertisement messages sent from the interface."; + reference + "RFC 8106: IPv6 Router Advertisement Options for DNS + Configuration"; + list rdnss-address { + key "address"; + description + "Recursive DNS server address."; + leaf address { + type inet:ipv6-address; + description + "IPv6 address of a recursive DNS server."; + } + leaf lifetime { + type uint32; + units "seconds"; + description + "The value that is placed in the Lifetime field in the + RDNSS option. The designated value of all 1's + (0xffffffff) represents infinity."; + } + } + } } container state { config false; diff --git a/zebra/rtadv.c b/zebra/rtadv.c index 04ae248f86..9958a690b7 100644 --- a/zebra/rtadv.c +++ b/zebra/rtadv.c @@ -1928,55 +1928,22 @@ static void rtadv_rdnss_free(struct rtadv_rdnss *rdnss) XFREE(MTYPE_RTADV_RDNSS, rdnss); } -static struct rtadv_rdnss *rtadv_rdnss_lookup(struct list *list, - struct rtadv_rdnss *rdnss) -{ - struct listnode *node; - struct rtadv_rdnss *p; - - for (ALL_LIST_ELEMENTS_RO(list, node, p)) - if (IPV6_ADDR_SAME(&p->addr, &rdnss->addr)) - return p; - return NULL; -} - -static struct rtadv_rdnss *rtadv_rdnss_get(struct list *list, - struct rtadv_rdnss *rdnss) +struct rtadv_rdnss *rtadv_rdnss_set(struct zebra_if *zif, + struct rtadv_rdnss *rdnss) { struct rtadv_rdnss *p; - p = rtadv_rdnss_lookup(list, rdnss); - if (p) - return p; - p = rtadv_rdnss_new(); memcpy(p, rdnss, sizeof(struct rtadv_rdnss)); - listnode_add(list, p); + listnode_add(zif->rtadv.AdvRDNSSList, p); return p; } -static void rtadv_rdnss_set(struct zebra_if *zif, struct rtadv_rdnss *rdnss) -{ - struct rtadv_rdnss *p; - - p = rtadv_rdnss_get(zif->rtadv.AdvRDNSSList, rdnss); - p->lifetime = rdnss->lifetime; - p->lifetime_set = rdnss->lifetime_set; -} - -static int rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *rdnss) +void rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *p) { - struct rtadv_rdnss *p; - - p = rtadv_rdnss_lookup(zif->rtadv.AdvRDNSSList, rdnss); - if (p) { - listnode_delete(zif->rtadv.AdvRDNSSList, p); - rtadv_rdnss_free(p); - return 1; - } - - return 0; + listnode_delete(zif->rtadv.AdvRDNSSList, p); + rtadv_rdnss_free(p); } static struct rtadv_dnssl *rtadv_dnssl_new(void) @@ -2078,41 +2045,9 @@ static int rtadv_dnssl_encode(uint8_t *out, const char *in) return outp; } -DEFUN(ipv6_nd_rdnss, +DEFPY_YANG (ipv6_nd_rdnss, ipv6_nd_rdnss_cmd, - "ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", - "Interface IPv6 config commands\n" - "Neighbor discovery\n" - "Recursive DNS server information\n" - "IPv6 address\n" - "Valid lifetime in seconds\n" - "Infinite valid lifetime\n") -{ - VTY_DECLVAR_CONTEXT(interface, ifp); - struct zebra_if *zif = ifp->info; - struct rtadv_rdnss rdnss = {}; - - if (inet_pton(AF_INET6, argv[3]->arg, &rdnss.addr) != 1) { - vty_out(vty, "Malformed IPv6 address\n"); - return CMD_WARNING_CONFIG_FAILED; - } - if (argc > 4) { - char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg - : argv[4]->text; - rdnss.lifetime = strmatch(lifetime, "infinite") - ? UINT32_MAX - : strtoll(lifetime, NULL, 10); - rdnss.lifetime_set = 1; - } - - rtadv_rdnss_set(zif, &rdnss); - - return CMD_SUCCESS; -} - -DEFUN(no_ipv6_nd_rdnss, - no_ipv6_nd_rdnss_cmd, - "no ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", + "[no] ipv6 nd rdnss X:X::X:X$addr [<(0-4294967295)|infinite>]$lifetime", NO_STR "Interface IPv6 config commands\n" "Neighbor discovery\n" @@ -2121,20 +2056,24 @@ DEFUN(no_ipv6_nd_rdnss, "Valid lifetime in seconds\n" "Infinite valid lifetime\n") { - VTY_DECLVAR_CONTEXT(interface, ifp); - struct zebra_if *zif = ifp->info; - struct rtadv_rdnss rdnss = {}; - - if (inet_pton(AF_INET6, argv[4]->arg, &rdnss.addr) != 1) { - vty_out(vty, "Malformed IPv6 address\n"); - return CMD_WARNING_CONFIG_FAILED; - } - if (rtadv_rdnss_reset(zif, &rdnss) != 1) { - vty_out(vty, "Non-existant RDNSS address\n"); - return CMD_WARNING_CONFIG_FAILED; + if (!no) { + nb_cli_enqueue_change(vty, ".", NB_OP_CREATE, NULL); + if (lifetime) { + if (strmatch(lifetime, "infinite")) + lifetime = "4294967295"; + nb_cli_enqueue_change(vty, "./lifetime", NB_OP_MODIFY, + lifetime); + } else { + nb_cli_enqueue_change(vty, "./lifetime", NB_OP_DESTROY, + NULL); + } + } else { + nb_cli_enqueue_change(vty, ".", NB_OP_DESTROY, NULL); } - - return CMD_SUCCESS; + return nb_cli_apply_changes( + vty, + "./frr-zebra:zebra/ipv6-router-advertisements/rdnss/rdnss-address[address='%s']", + addr_str); } DEFUN(ipv6_nd_dnssl, @@ -2586,7 +2525,6 @@ void rtadv_cmd_init(void) install_element(INTERFACE_NODE, &ipv6_nd_router_preference_cmd); install_element(INTERFACE_NODE, &ipv6_nd_mtu_cmd); install_element(INTERFACE_NODE, &ipv6_nd_rdnss_cmd); - install_element(INTERFACE_NODE, &no_ipv6_nd_rdnss_cmd); install_element(INTERFACE_NODE, &ipv6_nd_dnssl_cmd); install_element(INTERFACE_NODE, &no_ipv6_nd_dnssl_cmd); } diff --git a/zebra/rtadv.h b/zebra/rtadv.h index 8c43465132..64f1cb2f88 100644 --- a/zebra/rtadv.h +++ b/zebra/rtadv.h @@ -392,6 +392,12 @@ struct rtadv_prefix *rtadv_add_prefix_manual(struct zebra_if *zif, void rtadv_delete_prefix_manual(struct zebra_if *zif, struct rtadv_prefix *rprefix); +/* returns created address */ +struct rtadv_rdnss *rtadv_rdnss_set(struct zebra_if *zif, + struct rtadv_rdnss *rdnss); +/* p must be the one returned by rtadv_rdnss_set */ +void rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *p); + void ipv6_nd_suppress_ra_set(struct interface *ifp, enum ipv6_nd_suppress_ra_status status); void ipv6_nd_interval_set(struct interface *ifp, uint32_t interval); diff --git a/zebra/zebra_nb.c b/zebra/zebra_nb.c index 40a4ee4a02..bbdf0536fc 100644 --- a/zebra/zebra_nb.c +++ b/zebra/zebra_nb.c @@ -678,6 +678,20 @@ const struct frr_yang_module_info frr_zebra_info = { } }, { + .xpath = "/frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/rdnss/rdnss-address", + .cbs = { + .create = lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_create, + .destroy = lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_destroy, + } + }, + { + .xpath = "/frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/rdnss/rdnss-address/lifetime", + .cbs = { + .modify = lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_modify, + .destroy = lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_destroy, + } + }, + { .xpath = "/frr-interface:lib/interface/frr-zebra:zebra/state/up-count", .cbs = { .get_elem = lib_interface_zebra_state_up_count_get_elem, diff --git a/zebra/zebra_nb.h b/zebra/zebra_nb.h index d831a249d1..d1312b85a4 100644 --- a/zebra/zebra_nb.h +++ b/zebra/zebra_nb.h @@ -233,6 +233,14 @@ int lib_interface_zebra_ipv6_router_advertisements_prefix_list_prefix_autonomous struct nb_cb_modify_args *args); int lib_interface_zebra_ipv6_router_advertisements_prefix_list_prefix_router_address_flag_modify( struct nb_cb_modify_args *args); +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_create( + struct nb_cb_create_args *args); +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_destroy( + struct nb_cb_destroy_args *args); +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_modify( + struct nb_cb_modify_args *args); +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_destroy( + struct nb_cb_destroy_args *args); struct yang_data * lib_interface_zebra_state_up_count_get_elem(struct nb_cb_get_elem_args *args); struct yang_data * diff --git a/zebra/zebra_nb_config.c b/zebra/zebra_nb_config.c index 2fc42cc0d9..8130a13c26 100644 --- a/zebra/zebra_nb_config.c +++ b/zebra/zebra_nb_config.c @@ -3008,6 +3008,85 @@ int lib_interface_zebra_ipv6_router_advertisements_prefix_list_prefix_router_add } /* + * XPath: /frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/rdnss/rdnss-address + */ +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_create( + struct nb_cb_create_args *args) +{ + struct interface *ifp; + struct rtadv_rdnss rdnss, *p; + + if (args->event != NB_EV_APPLY) + return NB_OK; + + ifp = nb_running_get_entry(args->dnode, NULL, true); + + yang_dnode_get_ipv6(&rdnss.addr, args->dnode, "address"); + if (yang_dnode_exists(args->dnode, "lifetime")) { + rdnss.lifetime = yang_dnode_get_uint32(args->dnode, "lifetime"); + rdnss.lifetime_set = 1; + } else { + rdnss.lifetime_set = 0; + } + + p = rtadv_rdnss_set(ifp->info, &rdnss); + nb_running_set_entry(args->dnode, p); + + return NB_OK; +} + +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_destroy( + struct nb_cb_destroy_args *args) +{ + struct interface *ifp; + struct rtadv_rdnss *p; + + if (args->event != NB_EV_APPLY) + return NB_OK; + + p = nb_running_unset_entry(args->dnode); + ifp = nb_running_get_entry(args->dnode, NULL, true); + + rtadv_rdnss_reset(ifp->info, p); + + return NB_OK; +} + +/* + * XPath: /frr-interface:lib/interface/frr-zebra:zebra/ipv6-router-advertisements/rdnss/rdnss-address/lifetime + */ +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_modify( + struct nb_cb_modify_args *args) +{ + struct rtadv_rdnss *p; + + if (args->event != NB_EV_APPLY) + return NB_OK; + + p = nb_running_get_entry(args->dnode, NULL, true); + + p->lifetime = yang_dnode_get_uint32(args->dnode, NULL); + p->lifetime_set = 1; + + return NB_OK; +} + +int lib_interface_zebra_ipv6_router_advertisements_rdnss_rdnss_address_lifetime_destroy( + struct nb_cb_destroy_args *args) +{ + struct rtadv_rdnss *p; + + if (args->event != NB_EV_APPLY) + return NB_OK; + + p = nb_running_get_entry(args->dnode, NULL, true); + + p->lifetime_set = 0; + + return NB_OK; +} + +/* * XPath: /frr-vrf:lib/vrf/frr-zebra:zebra/l3vni-id */ int lib_vrf_zebra_l3vni_id_modify(struct nb_cb_modify_args *args) |