Add the possibility to configure a static IPv4 and/or IPv6 address and get MAC address dynamically allocated. This can be done using the following commands:
$ovn-nbctl ls-add sw0 $ovn-nbctl set Logical-Switch sw0 other_config:subnet=192.168.0.0/24 $ovn-nbctl set Logical-switch sw0 other_config:ipv6_prefix=2001::0 $ovn-nbctl lsp-add sw0 lsp0 -- lsp-set-addresses lsp0 "dynamic 192.168.0.1 2001::1" Signed-off-by: Lorenzo Bianconi <[email protected]> --- Changes since v1: - rebase on top of current master branch - fix IPv6 address assignment --- NEWS | 6 ++- ovn/lib/ovn-util.c | 6 +++ ovn/northd/ovn-northd.c | 87 +++++++++++++++++++++++++++++---------- ovn/ovn-nb.xml | 24 +++++++++++ ovn/utilities/ovn-nbctl.c | 2 + tests/ovn.at | 14 +++++++ 6 files changed, 116 insertions(+), 23 deletions(-) diff --git a/NEWS b/NEWS index 1e4744dbd..be7ea7fac 100644 --- a/NEWS +++ b/NEWS @@ -23,7 +23,11 @@ Post-v2.11.0 See section 4.1.15 of ovsdb-server(7) for details of related OVSDB protocol extension. - OVN: - * Select IPAM mac_prefix in a random manner if not provided by the user + * IPAM/MACAM: + - select IPAM mac_prefix in a random manner if not provided by the user + - add the capability to specify a static IPv4 and/or IPv6 address and + get the L2 one allocated dynamically using the following syntax: + ovn-nbctl lsp-set-addresses <port> "dynamic <IPv4 addr> <IPv6 addr>" - New QoS type "linux-netem" on Linux. v2.11.0 - 19 Feb 2019 diff --git a/ovn/lib/ovn-util.c b/ovn/lib/ovn-util.c index aa03919bb..6497d3273 100644 --- a/ovn/lib/ovn-util.c +++ b/ovn/lib/ovn-util.c @@ -80,6 +80,7 @@ add_ipv6_netaddr(struct lport_addresses *laddrs, struct in6_addr addr, bool is_dynamic_lsp_address(const char *address) { + char ipv6_s[IPV6_SCAN_LEN + 1]; struct eth_addr ea; ovs_be32 ip; int n; @@ -87,6 +88,11 @@ is_dynamic_lsp_address(const char *address) || (ovs_scan(address, "dynamic "IP_SCAN_FMT"%n", IP_SCAN_ARGS(&ip), &n) && address[n] == '\0') + || (ovs_scan(address, "dynamic "IP_SCAN_FMT" "IPV6_SCAN_FMT"%n", + IP_SCAN_ARGS(&ip), ipv6_s, &n) + && address[n] == '\0') + || (ovs_scan(address, "dynamic "IPV6_SCAN_FMT"%n", + ipv6_s, &n) && address[n] == '\0') || (ovs_scan(address, ETH_ADDR_SCAN_FMT" dynamic%n", ETH_ADDR_SCAN_ARGS(ea), &n) && address[n] == '\0')); } diff --git a/ovn/northd/ovn-northd.c b/ovn/northd/ovn-northd.c index 05b8aad4f..31f10cfca 100644 --- a/ovn/northd/ovn-northd.c +++ b/ovn/northd/ovn-northd.c @@ -1100,6 +1100,7 @@ struct dynamic_address_update { struct lport_addresses current_addresses; struct eth_addr static_mac; ovs_be32 static_ip; + struct in6_addr static_ipv6; enum dynamic_update_type mac; enum dynamic_update_type ipv4; enum dynamic_update_type ipv6; @@ -1166,13 +1167,16 @@ dynamic_ip4_changed(const char *lsp_addrs, */ return DYNAMIC; } else { + char ipv6_s[IPV6_SCAN_LEN + 1]; ovs_be32 new_ip; int n = 0; - if (ovs_scan(lsp_addrs, "dynamic "IP_SCAN_FMT"%n", + if ((ovs_scan(lsp_addrs, "dynamic "IP_SCAN_FMT"%n", IP_SCAN_ARGS(&new_ip), &n) - && lsp_addrs[n] == '\0') { - + && lsp_addrs[n] == '\0') || + (ovs_scan(lsp_addrs, "dynamic "IP_SCAN_FMT" "IPV6_SCAN_FMT"%n", + IP_SCAN_ARGS(&new_ip), ipv6_s, &n) + && lsp_addrs[n] == '\0')) { index = ntohl(new_ip) - ipam->start_ipv4; if (ntohl(new_ip) < ipam->start_ipv4 || index > ipam->total_ipv4s || @@ -1190,9 +1194,11 @@ dynamic_ip4_changed(const char *lsp_addrs, } static enum dynamic_update_type -dynamic_ip6_changed(struct dynamic_address_update *update) +dynamic_ip6_changed(const char *lsp_addrs, + struct dynamic_address_update *update) { bool dynamic_ip6 = update->op->od->ipam_info.ipv6_prefix_set; + struct eth_addr ea; if (!dynamic_ip6) { if (update->current_addresses.n_ipv6_addrs) { @@ -1204,22 +1210,43 @@ dynamic_ip6_changed(struct dynamic_address_update *update) } } - if (update->mac != NONE) { - /* IPv6 address is based on MAC, so if MAC has been updated, - * then we have to update IPv6 address too. - */ - return DYNAMIC; - } - - if (!update->current_addresses.n_ipv6_addrs) { + if (!update->current_addresses.n_ipv6_addrs || + ovs_scan(lsp_addrs, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea))) { /* IPv6 was previously static but now is dynamic */ return DYNAMIC; } - struct in6_addr masked = ipv6_addr_bitand( - &update->current_addresses.ipv6_addrs[0].addr, - &update->op->od->ipam_info.ipv6_prefix); - if (!IN6_ARE_ADDR_EQUAL(&masked, &update->op->od->ipam_info.ipv6_prefix)) { + const struct lport_addresses *cur_addresses; + char ipv6_s[IPV6_SCAN_LEN + 1]; + ovs_be32 new_ip; + int n = 0; + + if ((ovs_scan(lsp_addrs, "dynamic "IPV6_SCAN_FMT"%n", + ipv6_s, &n) && lsp_addrs[n] == '\0') || + (ovs_scan(lsp_addrs, "dynamic "IP_SCAN_FMT" "IPV6_SCAN_FMT"%n", + IP_SCAN_ARGS(&new_ip), ipv6_s, &n) + && lsp_addrs[n] == '\0')) { + struct in6_addr ipv6; + + if (!ipv6_parse(ipv6_s, &ipv6)) { + return DYNAMIC; + } + + struct in6_addr masked = ipv6_addr_bitand(&ipv6, + &update->op->od->ipam_info.ipv6_prefix); + if (!IN6_ARE_ADDR_EQUAL(&masked, + &update->op->od->ipam_info.ipv6_prefix)) { + return DYNAMIC; + } + + cur_addresses = &update->current_addresses; + + if (!IN6_ARE_ADDR_EQUAL(&cur_addresses->ipv6_addrs[0].addr, + &ipv6)) { + update->static_ipv6 = ipv6; + return STATIC; + } + } else if (update->mac != NONE) { return DYNAMIC; } @@ -1237,7 +1264,7 @@ dynamic_addresses_check_for_updates(const char *lsp_addrs, { update->mac = dynamic_mac_changed(lsp_addrs, update); update->ipv4 = dynamic_ip4_changed(lsp_addrs, update); - update->ipv6 = dynamic_ip6_changed(update); + update->ipv6 = dynamic_ip6_changed(lsp_addrs, update); if (update->mac == NONE && update->ipv4 == NONE && update->ipv6 == NONE) { @@ -1278,6 +1305,8 @@ static void set_dynamic_updates(const char *addrspec, struct dynamic_address_update *update) { + bool has_ipv4 = false, has_ipv6 = false; + char ipv6_s[IPV6_SCAN_LEN + 1]; struct eth_addr mac; ovs_be32 ip; int n = 0; @@ -1290,9 +1319,19 @@ set_dynamic_updates(const char *addrspec, update->mac = DYNAMIC; } - if (ovs_scan(addrspec, "dynamic "IP_SCAN_FMT"%n", - IP_SCAN_ARGS(&ip), &n) - && addrspec[n] == '\0') { + if ((ovs_scan(addrspec, "dynamic "IP_SCAN_FMT"%n", + IP_SCAN_ARGS(&ip), &n) && addrspec[n] == '\0')) { + has_ipv4 = true; + } else if ((ovs_scan(addrspec, "dynamic "IPV6_SCAN_FMT"%n", + ipv6_s, &n) && addrspec[n] == '\0')) { + has_ipv6 = true; + } else if ((ovs_scan(addrspec, "dynamic "IP_SCAN_FMT" "IPV6_SCAN_FMT"%n", + IP_SCAN_ARGS(&ip), ipv6_s, &n) + && addrspec[n] == '\0')) { + has_ipv4 = has_ipv6 = true; + } + + if (has_ipv4) { update->ipv4 = STATIC; update->static_ip = ip; } else if (update->op->od->ipam_info.allocated_ipv4s) { @@ -1300,7 +1339,10 @@ set_dynamic_updates(const char *addrspec, } else { update->ipv4 = NONE; } - if (update->op->od->ipam_info.ipv6_prefix_set) { + + if (has_ipv6 && ipv6_parse(ipv6_s, &update->static_ipv6)) { + update->ipv6 = STATIC; + } else if (update->op->od->ipam_info.ipv6_prefix_set) { update->ipv6 = DYNAMIC; } else { update->ipv6 = NONE; @@ -1351,7 +1393,8 @@ update_dynamic_addresses(struct dynamic_address_update *update) case REMOVE: break; case STATIC: - OVS_NOT_REACHED(); + ip6 = update->static_ipv6; + break; case DYNAMIC: in6_generate_eui64(mac, &update->od->ipam_info.ipv6_prefix, &ip6); break; diff --git a/ovn/ovn-nb.xml b/ovn/ovn-nb.xml index 61a57110a..160b0c218 100644 --- a/ovn/ovn-nb.xml +++ b/ovn/ovn-nb.xml @@ -718,6 +718,30 @@ </dl> </dd> + <dt><code>Keyword "dynamic" followed by an IPv4/IPv6 address</code></dt> + <dd> + + <p> + The keyword <code>dynamic</code> followed by an IPv4/IPv6 + address indicates that <code>ovn-northd</code> should choose + a dynamic ethernet address and use the provided IPv4/IPv6 address + as network address. + </p> + + <p> + Examples: + </p> + + <dl> + <dt><code>dynamic 192.168.0.1 2001::1</code></dt> + <dd> + This indicates that <code>ovn-northd</code> should allocate + a unique MAC address and use the provided IPv4/IPv6 address + for the related port + </dd> + </dl> + </dd> + <dt><code>router</code></dt> <dd> <p> diff --git a/ovn/utilities/ovn-nbctl.c b/ovn/utilities/ovn-nbctl.c index 2727b410a..4cb923abe 100644 --- a/ovn/utilities/ovn-nbctl.c +++ b/ovn/utilities/ovn-nbctl.c @@ -1533,6 +1533,7 @@ nbctl_lsp_set_addresses(struct ctl_context *ctx) int i; for (i = 2; i < ctx->argc; i++) { + char ipv6_s[IPV6_SCAN_LEN + 1]; struct eth_addr ea; ovs_be32 ip; @@ -1540,6 +1541,7 @@ nbctl_lsp_set_addresses(struct ctl_context *ctx) && strcmp(ctx->argv[i], "router") && !ovs_scan(ctx->argv[i], ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea)) + && !ovs_scan(ctx->argv[i], "dynamic "IPV6_SCAN_FMT, ipv6_s) && !ovs_scan(ctx->argv[i], "dynamic "IP_SCAN_FMT, IP_SCAN_ARGS(&ip))) { ctl_error(ctx, "%s: Invalid address format. See ovn-nb(5). " diff --git a/tests/ovn.at b/tests/ovn.at index e7746cb0f..d20806bb1 100644 --- a/tests/ovn.at +++ b/tests/ovn.at @@ -5976,6 +5976,20 @@ mac_prefix=$(ovn-nbctl --wait=sb get NB_Global . options:mac_prefix | tr -d \") port_addr=$(ovn-nbctl get Logical-Switch-Port p91 dynamic_addresses | tr -d \") AT_CHECK([test "$port_addr" = "${mac_prefix}:00:00:09"], [0], []) +ovn-nbctl --wait=hv set NB_Global . options:mac_prefix="00:11:22" +ovn-nbctl ls-add sw10 +ovn-nbctl --wait=sb set Logical-Switch sw10 other_config:ipv6_prefix="ae01::" +ovn-nbctl --wait=sb lsp-add sw10 p101 -- lsp-set-addresses p101 "dynamic ae01::1" +AT_CHECK([ovn-nbctl get Logical-Switch-Port p101 dynamic_addresses], [0], + ["00:11:22:00:00:0a ae01::1" +]) + +ovn-nbctl --wait=sb set Logical-Switch sw10 other_config:subnet=192.168.110.0/24 +ovn-nbctl --wait=sb lsp-add sw10 p102 -- lsp-set-addresses p102 "dynamic 192.168.110.10 ae01::2" +AT_CHECK([ovn-nbctl get Logical-Switch-Port p102 dynamic_addresses], [0], + ["00:11:22:a8:6e:0b 192.168.110.10 ae01::2" +]) + as ovn-sb OVS_APP_EXIT_AND_WAIT([ovsdb-server]) -- 2.20.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
