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bfdd: change vrf name with bypassing nb api
bfd operational & config data may already applied and available, while an external event requests for changing the vrf name. this change updates the config and operational context of yang. Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
parent
66bc1c49e1
commit
955d3ad8a8
45
bfdd/bfd.c
45
bfdd/bfd.c
@ -1756,6 +1756,51 @@ void bfd_session_update_vrf_name(struct bfd_session *bs, struct vrf *vrf)
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return;
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/* update key */
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hash_release(bfd_key_hash, bs);
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/*
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* HACK: Change the BFD VRF in the running configuration directly,
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* bypassing the northbound layer. This is necessary to avoid deleting
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* the BFD and readding it in the new VRF, which would have
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* several implications.
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*/
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if (yang_module_find("frr-bfdd") && bs->key.vrfname[0]) {
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struct lyd_node *bfd_dnode;
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char xpath[XPATH_MAXLEN], xpath_srcaddr[XPATH_MAXLEN + 32];
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char addr_buf[INET6_ADDRSTRLEN];
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int slen;
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/* build xpath */
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if (bs->key.mhop) {
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inet_ntop(bs->key.family, &bs->key.local, addr_buf, sizeof(addr_buf));
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snprintf(xpath_srcaddr, sizeof(xpath_srcaddr), "[source-addr='%s']",
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addr_buf);
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} else
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xpath_srcaddr[0] = 0;
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inet_ntop(bs->key.family, &bs->key.peer, addr_buf, sizeof(addr_buf));
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slen = snprintf(xpath, sizeof(xpath),
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"/frr-bfdd:bfdd/bfd/sessions/%s%s[dest-addr='%s']",
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bs->key.mhop ? "multi-hop" : "single-hop", xpath_srcaddr,
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addr_buf);
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if (bs->key.ifname[0])
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slen += snprintf(xpath + slen, sizeof(xpath) - slen,
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"[interface='%s']", bs->key.ifname);
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else
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slen += snprintf(xpath + slen, sizeof(xpath) - slen,
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"[interface='']");
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snprintf(xpath + slen, sizeof(xpath) - slen, "[vrf='%s']/vrf",
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bs->key.vrfname);
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pthread_rwlock_wrlock(&running_config->lock);
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{
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bfd_dnode = yang_dnode_get(
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running_config->dnode,
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xpath, bs->key.vrfname);
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if (bfd_dnode) {
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yang_dnode_change_leaf(bfd_dnode, vrf->name);
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running_config->version++;
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}
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pthread_rwlock_unlock(&running_config->lock);
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}
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}
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memset(bs->key.vrfname, 0, sizeof(bs->key.vrfname));
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strlcpy(bs->key.vrfname, vrf->name, sizeof(bs->key.vrfname));
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hash_get(bfd_key_hash, bs, hash_alloc_intern);
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