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-rw-r--r--bfdd/config.c592
1 files changed, 0 insertions, 592 deletions
diff --git a/bfdd/config.c b/bfdd/config.c
deleted file mode 100644
index 22d7d7deee..0000000000
--- a/bfdd/config.c
+++ /dev/null
@@ -1,592 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*********************************************************************
- * Copyright 2017-2018 Network Device Education Foundation, Inc. ("NetDEF")
- *
- * config.c: implements the BFD daemon configuration handling.
- *
- * Authors
- * -------
- * Rafael Zalamena <rzalamena@opensourcerouting.org>
- */
-
-#include <zebra.h>
-
-#include <string.h>
-
-#include "lib/json.h"
-
-#include "bfd.h"
-
-DEFINE_MTYPE_STATIC(BFDD, BFDD_LABEL, "long-lived label memory");
-
-/*
- * Definitions
- */
-enum peer_list_type {
- PLT_IPV4,
- PLT_IPV6,
- PLT_LABEL,
-};
-
-
-/*
- * Prototypes
- */
-static int parse_config_json(struct json_object *jo, bpc_handle h, void *arg);
-static int parse_list(struct json_object *jo, enum peer_list_type plt,
- bpc_handle h, void *arg);
-static int parse_peer_config(struct json_object *jo, struct bfd_peer_cfg *bpc);
-static int parse_peer_label_config(struct json_object *jo,
- struct bfd_peer_cfg *bpc);
-
-static int config_add(struct bfd_peer_cfg *bpc, void *arg);
-static int config_del(struct bfd_peer_cfg *bpc, void *arg);
-
-static int json_object_add_peer(struct json_object *jo, struct bfd_session *bs);
-
-
-/*
- * Implementation
- */
-static int config_add(struct bfd_peer_cfg *bpc,
- void *arg __attribute__((unused)))
-{
- return ptm_bfd_sess_new(bpc) == NULL;
-}
-
-static int config_del(struct bfd_peer_cfg *bpc,
- void *arg __attribute__((unused)))
-{
- return ptm_bfd_sess_del(bpc) != 0;
-}
-
-static int parse_config_json(struct json_object *jo, bpc_handle h, void *arg)
-{
- const char *key, *sval;
- struct json_object *jo_val;
- struct json_object_iterator joi, join;
- int error = 0;
-
- JSON_FOREACH (jo, joi, join) {
- key = json_object_iter_peek_name(&joi);
- jo_val = json_object_iter_peek_value(&joi);
-
- if (strcmp(key, "ipv4") == 0) {
- error += parse_list(jo_val, PLT_IPV4, h, arg);
- } else if (strcmp(key, "ipv6") == 0) {
- error += parse_list(jo_val, PLT_IPV6, h, arg);
- } else if (strcmp(key, "label") == 0) {
- error += parse_list(jo_val, PLT_LABEL, h, arg);
- } else {
- sval = json_object_get_string(jo_val);
- zlog_warn("%s:%d invalid configuration: %s", __func__,
- __LINE__, sval);
- error++;
- }
- }
-
- /*
- * Our callers never call free() on json_object and only expect
- * the return value, so lets free() it here.
- */
- json_object_put(jo);
-
- return error;
-}
-
-int parse_config(const char *fname)
-{
- struct json_object *jo;
-
- jo = json_object_from_file(fname);
- if (jo == NULL)
- return -1;
-
- return parse_config_json(jo, config_add, NULL);
-}
-
-static int parse_list(struct json_object *jo, enum peer_list_type plt,
- bpc_handle h, void *arg)
-{
- struct json_object *jo_val;
- struct bfd_peer_cfg bpc;
- int allen, idx;
- int error = 0, result;
-
- allen = json_object_array_length(jo);
- for (idx = 0; idx < allen; idx++) {
- jo_val = json_object_array_get_idx(jo, idx);
-
- /* Set defaults. */
- memset(&bpc, 0, sizeof(bpc));
- bpc.bpc_detectmultiplier = BFD_DEFDETECTMULT;
- bpc.bpc_recvinterval = BFD_DEFREQUIREDMINRX;
- bpc.bpc_txinterval = BFD_DEFDESIREDMINTX;
- bpc.bpc_echorecvinterval = BFD_DEF_REQ_MIN_ECHO_RX;
- bpc.bpc_echotxinterval = BFD_DEF_DES_MIN_ECHO_TX;
-
- switch (plt) {
- case PLT_IPV4:
- zlog_debug("ipv4 peers %d:", allen);
- bpc.bpc_ipv4 = true;
- break;
- case PLT_IPV6:
- zlog_debug("ipv6 peers %d:", allen);
- bpc.bpc_ipv4 = false;
- break;
- case PLT_LABEL:
- zlog_debug("label peers %d:", allen);
- if (parse_peer_label_config(jo_val, &bpc) != 0) {
- error++;
- continue;
- }
- break;
-
- default:
- error++;
- zlog_err("%s:%d: unsupported peer type", __func__,
- __LINE__);
- break;
- }
-
- result = parse_peer_config(jo_val, &bpc);
- error += result;
- if (result == 0)
- error += (h(&bpc, arg) != 0);
- }
-
- return error;
-}
-
-static int parse_peer_config(struct json_object *jo, struct bfd_peer_cfg *bpc)
-{
- const char *key, *sval;
- struct json_object *jo_val;
- struct json_object_iterator joi, join;
- int family_type = (bpc->bpc_ipv4) ? AF_INET : AF_INET6;
- int error = 0;
-
- zlog_debug(" peer: %s", bpc->bpc_ipv4 ? "ipv4" : "ipv6");
-
- JSON_FOREACH (jo, joi, join) {
- key = json_object_iter_peek_name(&joi);
- jo_val = json_object_iter_peek_value(&joi);
-
- if (strcmp(key, "multihop") == 0) {
- bpc->bpc_mhop = json_object_get_boolean(jo_val);
- zlog_debug(" multihop: %s",
- bpc->bpc_mhop ? "true" : "false");
- } else if (strcmp(key, "peer-address") == 0) {
- sval = json_object_get_string(jo_val);
- if (strtosa(sval, &bpc->bpc_peer) != 0
- || bpc->bpc_peer.sa_sin.sin_family != family_type) {
- zlog_debug(
- "%s:%d failed to parse peer-address '%s'",
- __func__, __LINE__, sval);
- error++;
- }
- zlog_debug(" peer-address: %s", sval);
- } else if (strcmp(key, "local-address") == 0) {
- sval = json_object_get_string(jo_val);
- if (strtosa(sval, &bpc->bpc_local) != 0
- || bpc->bpc_local.sa_sin.sin_family
- != family_type) {
- zlog_debug(
- "%s:%d failed to parse local-address '%s'",
- __func__, __LINE__, sval);
- error++;
- }
- zlog_debug(" local-address: %s", sval);
- } else if (strcmp(key, "local-interface") == 0) {
- bpc->bpc_has_localif = true;
- sval = json_object_get_string(jo_val);
- if (strlcpy(bpc->bpc_localif, sval,
- sizeof(bpc->bpc_localif))
- > sizeof(bpc->bpc_localif)) {
- zlog_debug(
- " local-interface: %s (truncated)",
- sval);
- error++;
- } else {
- zlog_debug(" local-interface: %s", sval);
- }
- } else if (strcmp(key, "vrf-name") == 0) {
- bpc->bpc_has_vrfname = true;
- sval = json_object_get_string(jo_val);
- if (strlcpy(bpc->bpc_vrfname, sval,
- sizeof(bpc->bpc_vrfname))
- > sizeof(bpc->bpc_vrfname)) {
- zlog_debug(" vrf-name: %s (truncated)",
- sval);
- error++;
- } else {
- zlog_debug(" vrf-name: %s", sval);
- }
- } else if (strcmp(key, "detect-multiplier") == 0) {
- bpc->bpc_detectmultiplier =
- json_object_get_int64(jo_val);
- bpc->bpc_has_detectmultiplier = true;
- zlog_debug(" detect-multiplier: %u",
- bpc->bpc_detectmultiplier);
- } else if (strcmp(key, "receive-interval") == 0) {
- bpc->bpc_recvinterval = json_object_get_int64(jo_val);
- bpc->bpc_has_recvinterval = true;
- zlog_debug(" receive-interval: %" PRIu64,
- bpc->bpc_recvinterval);
- } else if (strcmp(key, "transmit-interval") == 0) {
- bpc->bpc_txinterval = json_object_get_int64(jo_val);
- bpc->bpc_has_txinterval = true;
- zlog_debug(" transmit-interval: %" PRIu64,
- bpc->bpc_txinterval);
- } else if (strcmp(key, "echo-receive-interval") == 0) {
- bpc->bpc_echorecvinterval = json_object_get_int64(jo_val);
- bpc->bpc_has_echorecvinterval = true;
- zlog_debug(" echo-receive-interval: %" PRIu64,
- bpc->bpc_echorecvinterval);
- } else if (strcmp(key, "echo-transmit-interval") == 0) {
- bpc->bpc_echotxinterval = json_object_get_int64(jo_val);
- bpc->bpc_has_echotxinterval = true;
- zlog_debug(" echo-transmit-interval: %" PRIu64,
- bpc->bpc_echotxinterval);
- } else if (strcmp(key, "create-only") == 0) {
- bpc->bpc_createonly = json_object_get_boolean(jo_val);
- zlog_debug(" create-only: %s",
- bpc->bpc_createonly ? "true" : "false");
- } else if (strcmp(key, "shutdown") == 0) {
- bpc->bpc_shutdown = json_object_get_boolean(jo_val);
- zlog_debug(" shutdown: %s",
- bpc->bpc_shutdown ? "true" : "false");
- } else if (strcmp(key, "echo-mode") == 0) {
- bpc->bpc_echo = json_object_get_boolean(jo_val);
- zlog_debug(" echo-mode: %s",
- bpc->bpc_echo ? "true" : "false");
- } else if (strcmp(key, "label") == 0) {
- bpc->bpc_has_label = true;
- sval = json_object_get_string(jo_val);
- if (strlcpy(bpc->bpc_label, sval,
- sizeof(bpc->bpc_label))
- > sizeof(bpc->bpc_label)) {
- zlog_debug(" label: %s (truncated)",
- sval);
- error++;
- } else {
- zlog_debug(" label: %s", sval);
- }
- } else {
- sval = json_object_get_string(jo_val);
- zlog_warn("%s:%d invalid configuration: '%s: %s'",
- __func__, __LINE__, key, sval);
- error++;
- }
- }
-
- if (bpc->bpc_peer.sa_sin.sin_family == 0) {
- zlog_debug("%s:%d no peer address provided", __func__,
- __LINE__);
- error++;
- }
-
- return error;
-}
-
-static int parse_peer_label_config(struct json_object *jo,
- struct bfd_peer_cfg *bpc)
-{
- struct peer_label *pl;
- struct json_object *label;
- const char *sval;
-
- /* Get label and translate it to BFD daemon key. */
- if (!json_object_object_get_ex(jo, "label", &label))
- return 1;
-
- sval = json_object_get_string(label);
-
- pl = pl_find(sval);
- if (pl == NULL)
- return 1;
-
- zlog_debug(" peer-label: %s", sval);
-
- /* Translate the label into BFD address keys. */
- bs_to_bpc(pl->pl_bs, bpc);
-
- return 0;
-}
-
-
-/*
- * Control socket JSON parsing.
- */
-int config_request_add(const char *jsonstr)
-{
- struct json_object *jo;
-
- jo = json_tokener_parse(jsonstr);
- if (jo == NULL)
- return -1;
-
- return parse_config_json(jo, config_add, NULL);
-}
-
-int config_request_del(const char *jsonstr)
-{
- struct json_object *jo;
-
- jo = json_tokener_parse(jsonstr);
- if (jo == NULL)
- return -1;
-
- return parse_config_json(jo, config_del, NULL);
-}
-
-char *config_response(const char *status, const char *error)
-{
- struct json_object *resp, *jo;
- char *jsonstr;
-
- resp = json_object_new_object();
- if (resp == NULL)
- return NULL;
-
- /* Add 'status' response key. */
- jo = json_object_new_string(status);
- if (jo == NULL) {
- json_object_put(resp);
- return NULL;
- }
-
- json_object_object_add(resp, "status", jo);
-
- /* Add 'error' response key. */
- if (error != NULL) {
- jo = json_object_new_string(error);
- if (jo == NULL) {
- json_object_put(resp);
- return NULL;
- }
-
- json_object_object_add(resp, "error", jo);
- }
-
- /* Generate JSON response. */
- jsonstr = XSTRDUP(
- MTYPE_BFDD_NOTIFICATION,
- json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS));
- json_object_put(resp);
-
- return jsonstr;
-}
-
-char *config_notify(struct bfd_session *bs)
-{
- struct json_object *resp;
- char *jsonstr;
- time_t now;
-
- resp = json_object_new_object();
- if (resp == NULL)
- return NULL;
-
- json_object_string_add(resp, "op", BCM_NOTIFY_PEER_STATUS);
-
- json_object_add_peer(resp, bs);
-
- /* Add status information */
- json_object_int_add(resp, "id", bs->discrs.my_discr);
- json_object_int_add(resp, "remote-id", bs->discrs.my_discr);
-
- switch (bs->ses_state) {
- case PTM_BFD_UP:
- json_object_string_add(resp, "state", "up");
-
- now = monotime(NULL);
- json_object_int_add(resp, "uptime", now - bs->uptime.tv_sec);
- break;
- case PTM_BFD_ADM_DOWN:
- json_object_string_add(resp, "state", "adm-down");
- break;
- case PTM_BFD_DOWN:
- json_object_string_add(resp, "state", "down");
-
- now = monotime(NULL);
- json_object_int_add(resp, "downtime",
- now - bs->downtime.tv_sec);
- break;
- case PTM_BFD_INIT:
- json_object_string_add(resp, "state", "init");
- break;
-
- default:
- json_object_string_add(resp, "state", "unknown");
- break;
- }
-
- json_object_int_add(resp, "diagnostics", bs->local_diag);
- json_object_int_add(resp, "remote-diagnostics", bs->remote_diag);
-
- /* Generate JSON response. */
- jsonstr = XSTRDUP(
- MTYPE_BFDD_NOTIFICATION,
- json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS));
- json_object_put(resp);
-
- return jsonstr;
-}
-
-char *config_notify_config(const char *op, struct bfd_session *bs)
-{
- struct json_object *resp;
- char *jsonstr;
-
- resp = json_object_new_object();
- if (resp == NULL)
- return NULL;
-
- json_object_string_add(resp, "op", op);
-
- json_object_add_peer(resp, bs);
-
- /* On peer deletion we don't need to add any additional information. */
- if (strcmp(op, BCM_NOTIFY_CONFIG_DELETE) == 0)
- goto skip_config;
-
- json_object_int_add(resp, "detect-multiplier", bs->detect_mult);
- json_object_int_add(resp, "receive-interval",
- bs->timers.required_min_rx / 1000);
- json_object_int_add(resp, "transmit-interval",
- bs->timers.desired_min_tx / 1000);
- json_object_int_add(resp, "echo-receive-interval",
- bs->timers.required_min_echo_rx / 1000);
- json_object_int_add(resp, "echo-transmit-interval",
- bs->timers.desired_min_echo_tx / 1000);
-
- json_object_int_add(resp, "remote-detect-multiplier",
- bs->remote_detect_mult);
- json_object_int_add(resp, "remote-receive-interval",
- bs->remote_timers.required_min_rx / 1000);
- json_object_int_add(resp, "remote-transmit-interval",
- bs->remote_timers.desired_min_tx / 1000);
- json_object_int_add(resp, "remote-echo-receive-interval",
- bs->remote_timers.required_min_echo / 1000);
-
- if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_ECHO))
- json_object_boolean_true_add(resp, "echo-mode");
- else
- json_object_boolean_false_add(resp, "echo-mode");
-
- if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_SHUTDOWN))
- json_object_boolean_true_add(resp, "shutdown");
- else
- json_object_boolean_false_add(resp, "shutdown");
-
-skip_config:
- /* Generate JSON response. */
- jsonstr = XSTRDUP(
- MTYPE_BFDD_NOTIFICATION,
- json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS));
- json_object_put(resp);
-
- return jsonstr;
-}
-
-int config_notify_request(struct bfd_control_socket *bcs, const char *jsonstr,
- bpc_handle bh)
-{
- struct json_object *jo;
-
- jo = json_tokener_parse(jsonstr);
- if (jo == NULL)
- return -1;
-
- return parse_config_json(jo, bh, bcs);
-}
-
-static int json_object_add_peer(struct json_object *jo, struct bfd_session *bs)
-{
- char addr_buf[INET6_ADDRSTRLEN];
-
- /* Add peer 'key' information. */
- if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_IPV6))
- json_object_boolean_true_add(jo, "ipv6");
- else
- json_object_boolean_false_add(jo, "ipv6");
-
- if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_MH)) {
- json_object_boolean_true_add(jo, "multihop");
- json_object_string_add(jo, "peer-address",
- inet_ntop(bs->key.family, &bs->key.peer,
- addr_buf, sizeof(addr_buf)));
- json_object_string_add(jo, "local-address",
- inet_ntop(bs->key.family, &bs->key.local,
- addr_buf, sizeof(addr_buf)));
- if (bs->key.vrfname[0])
- json_object_string_add(jo, "vrf-name", bs->key.vrfname);
- } else {
- json_object_boolean_false_add(jo, "multihop");
- json_object_string_add(jo, "peer-address",
- inet_ntop(bs->key.family, &bs->key.peer,
- addr_buf, sizeof(addr_buf)));
- if (memcmp(&bs->key.local, &zero_addr, sizeof(bs->key.local)))
- json_object_string_add(
- jo, "local-address",
- inet_ntop(bs->key.family, &bs->key.local,
- addr_buf, sizeof(addr_buf)));
- if (bs->key.ifname[0])
- json_object_string_add(jo, "local-interface",
- bs->key.ifname);
- }
-
- if (bs->pl)
- json_object_string_add(jo, "label", bs->pl->pl_label);
-
- return 0;
-}
-
-
-/*
- * Label handling
- */
-struct peer_label *pl_find(const char *label)
-{
- struct peer_label *pl;
-
- TAILQ_FOREACH (pl, &bglobal.bg_pllist, pl_entry) {
- if (strcmp(pl->pl_label, label) != 0)
- continue;
-
- return pl;
- }
-
- return NULL;
-}
-
-struct peer_label *pl_new(const char *label, struct bfd_session *bs)
-{
- struct peer_label *pl;
-
- pl = XCALLOC(MTYPE_BFDD_LABEL, sizeof(*pl));
-
- if (strlcpy(pl->pl_label, label, sizeof(pl->pl_label))
- > sizeof(pl->pl_label))
- zlog_warn("%s:%d: label was truncated", __func__, __LINE__);
-
- pl->pl_bs = bs;
- bs->pl = pl;
-
- TAILQ_INSERT_HEAD(&bglobal.bg_pllist, pl, pl_entry);
-
- return pl;
-}
-
-void pl_free(struct peer_label *pl)
-{
- if (pl == NULL)
- return;
-
- /* Remove the pointer back. */
- pl->pl_bs->pl = NULL;
-
- TAILQ_REMOVE(&bglobal.bg_pllist, pl, pl_entry);
- XFREE(MTYPE_BFDD_LABEL, pl);
-}