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From: Lorenzo Bianconi
To: ovs-dev@openvswitch.org
Date: Tue, 13 Oct 2020 13:14:22 +0200
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Subject: [ovs-dev] [PATCH v2 ovn] dhcp: add iPXE support to OVN
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Introduce the possibility to specify more than 255 options in
put_dhcp_opts userdata buffer. This is useful to support conditional
options for the DHCP reply. (e.g option 67 used in iPXE protocol).
Express the option code using 2 bytes instead of just one in userdata
buffer. Moreover, parse userdata buffer in pinctrl_handle_put_dhcp_opts
in order to distinguish between 'optional' and 'fixed' options.
Add iPXE support to OVN introducing "bootfile_name_alt" dhcp option.
When both "bootfile_name" and "bootfile_name_alt" are provided
by the CMS, "bootfile_name" will be used for option 67 if the
dhcp request contains etherboot option (175), otherwise
"bootfile_name_alt" will be used.
Tested-by: Lucas Alvares Gomes Martins
Signed-off-by: Lorenzo Bianconi
---
controller/pinctrl.c | 56 +++++++++++++++++---
lib/actions.c | 28 +++++-----
lib/ovn-l7.h | 11 ++++
northd/ovn-northd.c | 1 +
ovn-nb.xml | 10 ++++
ovn-sb.ovsschema | 6 +--
tests/ovn.at | 118 ++++++++++++++++++++++++++++++-------------
tests/test-ovn.c | 1 +
8 files changed, 171 insertions(+), 60 deletions(-)
diff --git a/controller/pinctrl.c b/controller/pinctrl.c
index 0a7020533..260184566 100644
--- a/controller/pinctrl.c
+++ b/controller/pinctrl.c
@@ -1766,6 +1766,7 @@ pinctrl_handle_put_dhcp_opts(
}
in_dhcp_ptr += sizeof magic_cookie;
+ bool ipxe_req = false;
const uint8_t *in_dhcp_msg_type = NULL;
ovs_be32 request_ip = in_dhcp_data->ciaddr;
while (in_dhcp_ptr < end) {
@@ -1798,6 +1799,9 @@ pinctrl_handle_put_dhcp_opts(
request_ip = get_unaligned_be32(DHCP_OPT_PAYLOAD(in_dhcp_opt));
}
break;
+ case DHCP_OPT_ETHERBOOT:
+ ipxe_req = true;
+ break;
default:
break;
}
@@ -1855,8 +1859,8 @@ pinctrl_handle_put_dhcp_opts(
reply_dhcp_opts_ptr = dhcp_inform_reply_buf;
while (in_dhcp_ptr < end) {
- const struct dhcp_opt_header *in_dhcp_opt =
- (const struct dhcp_opt_header *)in_dhcp_ptr;
+ const struct dhcp_opt_userdata_hdr *in_dhcp_opt =
+ (const struct dhcp_opt_userdata_hdr *)in_dhcp_ptr;
switch (in_dhcp_opt->code) {
case OVN_DHCP_OPT_CODE_NETMASK:
@@ -1916,9 +1920,47 @@ pinctrl_handle_put_dhcp_opts(
*| 4 Bytes padding | 1 Byte (option end 0xFF ) | 4 Bytes padding|
* --------------------------------------------------------------
*/
+ /* compute opt len */
+ unsigned char *boot_filename_alt = NULL, *boot_filname_opt_ptr = NULL;
+ unsigned char *ptr = (unsigned char *)reply_dhcp_opts_ptr->data;
+ uint16_t boot_filename_len = 0, boot_filename_alt_len = 0;
+ unsigned char *ptr_end = ptr + reply_dhcp_opts_ptr->size;
+ unsigned char *buf = xmalloc(reply_dhcp_opts_ptr->size);
+ uint16_t opt_len = 0;
+
+ while (ptr < ptr_end) {
+ const struct dhcp_opt_userdata_hdr *in_dhcp_opt =
+ (const struct dhcp_opt_userdata_hdr *)ptr;
+
+ switch (in_dhcp_opt->code) {
+ case 300: /* DHCP_OPT_BOOTFILE_ALT */
+ boot_filename_alt = ptr + sizeof *in_dhcp_opt;
+ boot_filename_alt_len = in_dhcp_opt->len;
+ break;
+ case 67: /* DHCP_OPT_BOOTFILENAME */
+ boot_filname_opt_ptr = &buf[opt_len];
+ boot_filename_len = in_dhcp_opt->len;
+ /* fall through */
+ default:
+ /* code < 255 */
+ buf[opt_len] = in_dhcp_opt->code;
+ memcpy(buf + 1 + opt_len, ptr + 2, in_dhcp_opt->len + 1);
+ opt_len += 2 + in_dhcp_opt->len;
+ break;
+ }
+ ptr += sizeof *in_dhcp_opt + in_dhcp_opt->len;
+ }
+
+ if (!ipxe_req && boot_filename_alt_len > 0 && boot_filename_len > 0) {
+ memcpy(&boot_filname_opt_ptr[2], boot_filename_alt,
+ boot_filename_alt_len);
+ boot_filname_opt_ptr[1] = boot_filename_alt_len;
+ opt_len += boot_filename_alt_len - boot_filename_len;
+ }
+
uint16_t new_l4_size = UDP_HEADER_LEN + DHCP_HEADER_LEN + 16;
if (msg_type != DHCP_MSG_NAK) {
- new_l4_size += reply_dhcp_opts_ptr->size;
+ new_l4_size += opt_len;
}
size_t new_packet_size = pkt_in->l4_ofs + new_l4_size;
@@ -1954,7 +1996,7 @@ pinctrl_handle_put_dhcp_opts(
uint16_t out_dhcp_opts_size = 12;
if (msg_type != DHCP_MSG_NAK) {
- out_dhcp_opts_size += reply_dhcp_opts_ptr->size;
+ out_dhcp_opts_size += opt_len;
}
uint8_t *out_dhcp_opts = dp_packet_put_zeros(&pkt_out,
out_dhcp_opts_size);
@@ -1965,9 +2007,8 @@ pinctrl_handle_put_dhcp_opts(
out_dhcp_opts += 3;
if (msg_type != DHCP_MSG_NAK) {
- memcpy(out_dhcp_opts, reply_dhcp_opts_ptr->data,
- reply_dhcp_opts_ptr->size);
- out_dhcp_opts += reply_dhcp_opts_ptr->size;
+ memcpy(out_dhcp_opts, buf, opt_len);
+ out_dhcp_opts += opt_len;
}
/* Padding */
@@ -2005,6 +2046,7 @@ pinctrl_handle_put_dhcp_opts(
ETH_ADDR_ARGS(l2->eth_src), IP_ARGS(*offer_ip));
success = 1;
+ free(buf);
exit:
if (!ofperr) {
union mf_subvalue sv;
diff --git a/lib/actions.c b/lib/actions.c
index 5fe0a3897..48726b7f5 100644
--- a/lib/actions.c
+++ b/lib/actions.c
@@ -2308,23 +2308,23 @@ static void
encode_put_dhcpv4_option(const struct ovnact_gen_option *o,
struct ofpbuf *ofpacts)
{
- uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 2);
- opt_header[0] = o->option->code;
+ uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 3);
+ memcpy(opt_header, &o->option->code, 2);
const union expr_constant *c = o->value.values;
size_t n_values = o->value.n_values;
if (!strcmp(o->option->type, "bool") ||
!strcmp(o->option->type, "uint8")) {
- opt_header[1] = 1;
+ opt_header[2] = 1;
ofpbuf_put(ofpacts, &c->value.u8_val, 1);
} else if (!strcmp(o->option->type, "uint16")) {
- opt_header[1] = 2;
+ opt_header[2] = 2;
ofpbuf_put(ofpacts, &c->value.be16_int, 2);
} else if (!strcmp(o->option->type, "uint32")) {
- opt_header[1] = 4;
+ opt_header[2] = 4;
ofpbuf_put(ofpacts, &c->value.be32_int, 4);
} else if (!strcmp(o->option->type, "ipv4")) {
- opt_header[1] = n_values * sizeof(ovs_be32);
+ opt_header[2] = n_values * sizeof(ovs_be32);
for (size_t i = 0; i < n_values; i++) {
ofpbuf_put(ofpacts, &c[i].value.ipv4, sizeof(ovs_be32));
}
@@ -2333,7 +2333,7 @@ encode_put_dhcpv4_option(const struct ovnact_gen_option *o,
if (no_of_routes % 2) {
no_of_routes -= 1;
}
- opt_header[1] = 0;
+ opt_header[2] = 0;
/* Calculating the length of this option first because when
* we call ofpbuf_put, it might reallocate the buffer if the
@@ -2345,7 +2345,7 @@ encode_put_dhcpv4_option(const struct ovnact_gen_option *o,
if (c[i].masked) {
plen = (uint8_t) ip_count_cidr_bits(c[i].mask.ipv4);
}
- opt_header[1] += (1 + DIV_ROUND_UP(plen, 8) + sizeof(ovs_be32));
+ opt_header[2] += (1 + DIV_ROUND_UP(plen, 8) + sizeof(ovs_be32));
}
/* Copied from RFC 3442. Please refer to this RFC for the format of
@@ -2375,14 +2375,14 @@ encode_put_dhcpv4_option(const struct ovnact_gen_option *o,
sizeof(ovs_be32));
}
} else if (!strcmp(o->option->type, "str")) {
- opt_header[1] = strlen(c->string);
- ofpbuf_put(ofpacts, c->string, opt_header[1]);
+ opt_header[2] = strlen(c->string);
+ ofpbuf_put(ofpacts, c->string, opt_header[2]);
} else if (!strcmp(o->option->type, "host_id")) {
if (o->value.type == EXPR_C_STRING) {
- opt_header[1] = strlen(c->string);
- ofpbuf_put(ofpacts, c->string, opt_header[1]);
+ opt_header[2] = strlen(c->string);
+ ofpbuf_put(ofpacts, c->string, opt_header[2]);
} else {
- opt_header[1] = sizeof(ovs_be32);
+ opt_header[2] = sizeof(ovs_be32);
ofpbuf_put(ofpacts, &c->value.ipv4, sizeof(ovs_be32));
}
} else if (!strcmp(o->option->type, "domains")) {
@@ -2461,7 +2461,7 @@ encode_put_dhcpv4_option(const struct ovnact_gen_option *o,
encode_offset += sizeof(uint8_t);
}
}
- opt_header[1] = encode_offset;
+ opt_header[2] = encode_offset;
ofpbuf_put(ofpacts, dns_encoded, encode_offset);
out:
diff --git a/lib/ovn-l7.h b/lib/ovn-l7.h
index 18c59896d..79c037ba3 100644
--- a/lib/ovn-l7.h
+++ b/lib/ovn-l7.h
@@ -93,6 +93,11 @@ struct gen_opts_map {
#define DHCP_OPT_DOMAIN_SEARCH_LIST \
DHCP_OPTION("domain_search_list", 119, "domains")
+/* fixed DHCP header */
+#define DHCP_OPT_BOOTFILE_ALT DHCP_OPTION("bootfile_name_alt", 300, "str")
+
+#define DHCP_OPT_ETHERBOOT 175
+
#define DHCP_OPT_ARP_CACHE_TIMEOUT \
DHCP_OPTION("arp_cache_timeout", 35, "uint32")
#define DHCP_OPT_TCP_KEEPALIVE_INTERVAL \
@@ -179,6 +184,12 @@ struct dhcp_opt6_header {
ovs_be16 size;
};
+OVS_PACKED(
+struct dhcp_opt_userdata_hdr {
+ uint16_t code;
+ uint8_t len;
+});
+
/* These are not defined in ovs/lib/dhcp.h, hence defining here. */
#define OVN_DHCP_MSG_DECLINE 4
#define OVN_DHCP_MSG_RELEASE 7
diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index 366fdd95f..a9941bb9a 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -12514,6 +12514,7 @@ static struct gen_opts_map supported_dhcp_opts[] = {
DHCP_OPT_ARP_CACHE_TIMEOUT,
DHCP_OPT_TCP_KEEPALIVE_INTERVAL,
DHCP_OPT_DOMAIN_SEARCH_LIST,
+ DHCP_OPT_BOOTFILE_ALT,
};
static struct gen_opts_map supported_dhcpv6_opts[] = {
diff --git a/ovn-nb.xml b/ovn-nb.xml
index 86195af34..43694535e 100644
--- a/ovn-nb.xml
+++ b/ovn-nb.xml
@@ -3096,6 +3096,16 @@
resolving hostnames via the Domain Name System.
+
+
+
+
+ "bootfile_name_alt" option is used to support iPXE.
+ When both "bootfile_name" and "bootfile_name_alt" are provided
+ by the CMS, "bootfile_name" will be used for option 67 if the
+ dhcp request contains etherboot option (175), otherwise
+ "bootfile_name_alt" will be used.
+
diff --git a/ovn-sb.ovsschema b/ovn-sb.ovsschema
index d1c506a22..9a684d8c0 100644
--- a/ovn-sb.ovsschema
+++ b/ovn-sb.ovsschema
@@ -1,7 +1,7 @@
{
"name": "OVN_Southbound",
- "version": "2.10.0",
- "cksum": "2548342632 22615",
+ "version": "2.11.0",
+ "cksum": "1750191326 22616",
"tables": {
"SB_Global": {
"columns": {
@@ -226,7 +226,7 @@
"name": {"type": "string"},
"code": {
"type": {"key": {"type": "integer",
- "minInteger": 0, "maxInteger": 254}}},
+ "minInteger": 0, "maxInteger": 1000}}},
"type": {
"type": {"key": {
"type": "string",
diff --git a/tests/ovn.at b/tests/ovn.at
index 488fd119b..9206336ac 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -1277,25 +1277,25 @@ reg0[0] = lookup_arp_ip(inport, eth.dst);
# put_dhcp_opts
reg1[0] = put_dhcp_opts(offerip = 1.2.3.4, router = 10.0.0.1);
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.40.01.02.03.04.03.04.0a.00.00.01,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.40.01.02.03.04.03.00.04.0a.00.00.01,pause)
reg2[5] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.254.0,mtu=1400,domain_name="ovn.org",wpad="https://example.org",bootfile_name="https://127.0.0.1/boot.ipxe",path_prefix="/tftpboot");
formats as reg2[5] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.254.0, mtu = 1400, domain_name = "ovn.org", wpad = "https://example.org", bootfile_name = "https://127.0.0.1/boot.ipxe", path_prefix = "/tftpboot");
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.fe.00.1a.02.05.78.0f.07.6f.76.6e.2e.6f.72.67.fc.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.09.2f.74.66.74.70.62.6f.6f.74,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.fe.00.1a.00.02.05.78.0f.00.07.6f.76.6e.2e.6f.72.67.fc.00.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.00.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.00.09.2f.74.66.74.70.62.6f.6f.74,pause)
reg0[15] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.255.0,mtu=1400,ip_forward_enable=1,default_ttl=121,dns_server={8.8.8.8,7.7.7.7},classless_static_route={30.0.0.0/24,10.0.0.4,40.0.0.0/16,10.0.0.6,0.0.0.0/0,10.0.0.1},ethernet_encap=1,router_discovery=0,tftp_server_address={10.0.0.4,10.0.0.5},arp_cache_timeout=10,tcp_keepalive_interval=10);
formats as reg0[15] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.255.0, mtu = 1400, ip_forward_enable = 1, default_ttl = 121, dns_server = {8.8.8.8, 7.7.7.7}, classless_static_route = {30.0.0.0/24, 10.0.0.4, 40.0.0.0/16, 10.0.0.6, 0.0.0.0/0, 10.0.0.1}, ethernet_encap = 1, router_discovery = 0, tftp_server_address = {10.0.0.4, 10.0.0.5}, arp_cache_timeout = 10, tcp_keepalive_interval = 10);
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.ff.00.1a.02.05.78.13.01.01.17.01.79.06.08.08.08.08.08.07.07.07.07.79.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.01.01.1f.01.00.96.08.0a.00.00.04.0a.00.00.05.23.04.00.00.00.0a.26.04.00.00.00.0a,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.ff.00.1a.00.02.05.78.13.00.01.01.17.00.01.79.06.00.08.08.08.08.08.07.07.07.07.79.00.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.00.01.01.1f.00.01.00.96.00.08.0a.00.00.04.0a.00.00.05.23.00.04.00.00.00.0a.26.00.04.00.00.00.0a,pause)
reg0[15] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.255.0,mtu=1400,ip_forward_enable=1,default_ttl=121,dns_server={8.8.8.8,7.7.7.7},classless_static_route={30.0.0.0/24,10.0.0.4,40.0.0.0/16,10.0.0.6,0.0.0.0/0,10.0.0.1},ethernet_encap=1,router_discovery=0,tftp_server=10.0.0.10);
formats as reg0[15] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.255.0, mtu = 1400, ip_forward_enable = 1, default_ttl = 121, dns_server = {8.8.8.8, 7.7.7.7}, classless_static_route = {30.0.0.0/24, 10.0.0.4, 40.0.0.0/16, 10.0.0.6, 0.0.0.0/0, 10.0.0.1}, ethernet_encap = 1, router_discovery = 0, tftp_server = 10.0.0.10);
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.ff.00.1a.02.05.78.13.01.01.17.01.79.06.08.08.08.08.08.07.07.07.07.79.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.01.01.1f.01.00.42.04.0a.00.00.0a,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.ff.00.1a.00.02.05.78.13.00.01.01.17.00.01.79.06.00.08.08.08.08.08.07.07.07.07.79.00.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.00.01.01.1f.00.01.00.42.00.04.0a.00.00.0a,pause)
reg0[15] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.255.0,mtu=1400,ip_forward_enable=1,default_ttl=121,dns_server={8.8.8.8,7.7.7.7},classless_static_route={30.0.0.0/24,10.0.0.4,40.0.0.0/16,10.0.0.6,0.0.0.0/0,10.0.0.1},ethernet_encap=1,router_discovery=0,tftp_server="tftp_server_test");
formats as reg0[15] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.255.0, mtu = 1400, ip_forward_enable = 1, default_ttl = 121, dns_server = {8.8.8.8, 7.7.7.7}, classless_static_route = {30.0.0.0/24, 10.0.0.4, 40.0.0.0/16, 10.0.0.6, 0.0.0.0/0, 10.0.0.1}, ethernet_encap = 1, router_discovery = 0, tftp_server = "tftp_server_test");
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.ff.00.1a.02.05.78.13.01.01.17.01.79.06.08.08.08.08.08.07.07.07.07.79.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.01.01.1f.01.00.42.10.74.66.74.70.5f.73.65.72.76.65.72.5f.74.65.73.74,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.6f.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.ff.00.1a.00.02.05.78.13.00.01.01.17.00.01.79.06.00.08.08.08.08.08.07.07.07.07.79.00.14.18.1e.00.00.0a.00.00.04.10.28.00.0a.00.00.06.00.0a.00.00.01.24.00.01.01.1f.00.01.00.42.00.10.74.66.74.70.5f.73.65.72.76.65.72.5f.74.65.73.74,pause)
reg2[5] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.254.0,mtu=1400,domain_name="ovn.org",wpad="https://example.org",bootfile_name="https://127.0.0.1/boot.ipxe",path_prefix="/tftpboot",domain_search_list="ovn.org,abc.ovn.org");
formats as reg2[5] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.254.0, mtu = 1400, domain_name = "ovn.org", wpad = "https://example.org", bootfile_name = "https://127.0.0.1/boot.ipxe", path_prefix = "/tftpboot", domain_search_list = "ovn.org,abc.ovn.org");
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.fe.00.1a.02.05.78.0f.07.6f.76.6e.2e.6f.72.67.fc.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.09.2f.74.66.74.70.62.6f.6f.74.77.0f.03.6f.76.6e.03.6f.72.67.00.03.61.62.63.c0.00,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.fe.00.1a.00.02.05.78.0f.00.07.6f.76.6e.2e.6f.72.67.fc.00.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.00.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.00.09.2f.74.66.74.70.62.6f.6f.74.77.00.0f.03.6f.76.6e.03.6f.72.67.00.03.61.62.63.c0.00,pause)
reg2[5] = put_dhcp_opts(offerip=10.0.0.4,router=10.0.0.1,netmask=255.255.254.0,mtu=1400,domain_name="ovn.org",wpad="https://example.org",bootfile_name="https://127.0.0.1/boot.ipxe",path_prefix="/tftpboot",domain_search_list="ovn.org,abc.ovn.org,def.ovn.org,ovn.test,def.ovn.test,test.org,abc.com");
formats as reg2[5] = put_dhcp_opts(offerip = 10.0.0.4, router = 10.0.0.1, netmask = 255.255.254.0, mtu = 1400, domain_name = "ovn.org", wpad = "https://example.org", bootfile_name = "https://127.0.0.1/boot.ipxe", path_prefix = "/tftpboot", domain_search_list = "ovn.org,abc.ovn.org,def.ovn.org,ovn.test,def.ovn.test,test.org,abc.com");
- encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.04.0a.00.00.01.01.04.ff.ff.fe.00.1a.02.05.78.0f.07.6f.76.6e.2e.6f.72.67.fc.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.09.2f.74.66.74.70.62.6f.6f.74.77.35.03.6f.76.6e.03.6f.72.67.00.03.61.62.63.c0.00.03.64.65.66.c0.00.03.6f.76.6e.04.74.65.73.74.00.03.64.65.66.c0.15.04.74.65.73.74.c0.04.03.61.62.63.03.63.6f.6d.00,pause)
+ encodes as controller(userdata=00.00.00.02.00.00.00.00.00.01.de.10.00.00.00.25.0a.00.00.04.03.00.04.0a.00.00.01.01.00.04.ff.ff.fe.00.1a.00.02.05.78.0f.00.07.6f.76.6e.2e.6f.72.67.fc.00.13.68.74.74.70.73.3a.2f.2f.65.78.61.6d.70.6c.65.2e.6f.72.67.43.00.1b.68.74.74.70.73.3a.2f.2f.31.32.37.2e.30.2e.30.2e.31.2f.62.6f.6f.74.2e.69.70.78.65.d2.00.09.2f.74.66.74.70.62.6f.6f.74.77.00.35.03.6f.76.6e.03.6f.72.67.00.03.61.62.63.c0.00.03.64.65.66.c0.00.03.6f.76.6e.04.74.65.73.74.00.03.64.65.66.c0.15.04.74.65.73.74.c0.04.03.61.62.63.03.63.6f.6d.00,pause)
reg1[0..1] = put_dhcp_opts(offerip = 1.2.3.4, router = 10.0.0.1);
Cannot use 2-bit field reg1[0..1] where 1-bit field is required.
@@ -5302,10 +5302,10 @@ sleep 2
as hv1 ovs-vsctl show
# This shell function sends a DHCP request packet
-# test_dhcp INPORT SRC_MAC DHCP_TYPE BROADCAST CIADDR OFFER_IP REQUEST_IP USE_IP ...
+# test_dhcp INPORT SRC_MAC DHCP_TYPE BROADCAST CIADDR OFFER_IP REQUEST_IP ETH_BOOT USE_IP ...
test_dhcp() {
- local inport=$1 src_mac=$2 dhcp_type=$3 broadcast=$4 ciaddr=$5 offer_ip=$6 request_ip=$7 use_ip=$8
- shift; shift; shift; shift; shift; shift; shift; shift;
+ local inport=$1 src_mac=$2 dhcp_type=$3 broadcast=$4 ciaddr=$5 offer_ip=$6 request_ip=$7 eth_boot=$8 use_ip=$9
+ shift; shift; shift; shift; shift; shift; shift; shift; shift;
if test $use_ip != 0; then
src_ip=$1
@@ -5317,11 +5317,21 @@ test_dhcp() {
fi
if test $request_ip != 0; then
- ip_len=0120
- udp_len=010b
+ if test $eth_boot != 0; then
+ ip_len=0124
+ udp_len=010f
+ else
+ ip_len=0120
+ udp_len=010b
+ fi
else
- ip_len=011a
- udp_len=0106
+ if test $eth_boot != 0; then
+ ip_len=011e
+ udp_len=010a
+ else
+ ip_len=011a
+ udp_len=0106
+ fi
fi
if test $broadcast != 0; then
@@ -5362,6 +5372,9 @@ test_dhcp() {
# dhcp requested ip
request=${request}3204${request_ip}
fi
+ if test $eth_boot != 0; then
+ request=${request}af020000
+ fi
# dhcp end option
request=${request}ff
@@ -5457,7 +5470,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=0
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 1 f00000000001 01 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
+test_dhcp 1 f00000000001 01 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
# NXT_RESUMEs should be 1.
OVS_WAIT_UNTIL([test 1 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5483,7 +5496,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=$offer_ip
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 2.
OVS_WAIT_UNTIL([test 2 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5507,7 +5520,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=`ip_to_hex 10 0 0 7`
expected_dhcp_opts=""
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 06 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 06 $expected_dhcp_opts
# NXT_RESUMEs should be 3.
OVS_WAIT_UNTIL([test 3 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5531,7 +5544,7 @@ rm -f 2.expected
ciaddr=`ip_to_hex 0 0 0 0`
offer_ip=0
request_ip=0
-test_dhcp 2 f00000000002 09 0 $ciaddr $offer_ip $request_ip 0 1 1
+test_dhcp 2 f00000000002 09 0 $ciaddr $offer_ip $request_ip 0 0 1 1
# NXT_RESUMEs should be 4.
OVS_WAIT_UNTIL([test 4 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5548,18 +5561,18 @@ rm -f 2.expected
# ls2-lp2 (vif4-tx.pcap) should receive the DHCPv4 request packet once.
ciaddr=`ip_to_hex 0 0 0 0`
-test_dhcp 3 f00000000003 01 0 $ciaddr 0 0 4 0
+test_dhcp 3 f00000000003 01 0 $ciaddr 0 0 0 4 0
# Send DHCPv4 packet on ls2-lp2. "router" DHCPv4 option is not defined for
# this lport.
ciaddr=`ip_to_hex 0 0 0 0`
-test_dhcp 4 f00000000004 01 0 $ciaddr 0 0 3 0
+test_dhcp 4 f00000000004 01 0 $ciaddr 0 0 0 3 0
# NXT_RESUMEs should be 4.
OVS_WAIT_UNTIL([test 4 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
-#OVN_CHECK_PACKETS([hv1/vif3-tx.pcap], [3.expected])
-#OVN_CHECK_PACKETS([hv1/vif4-tx.pcap], [4.expected])
+OVN_CHECK_PACKETS([hv1/vif3-tx.pcap], [3.expected])
+OVN_CHECK_PACKETS([hv1/vif4-tx.pcap], [4.expected])
# Send DHCPREQUEST in the RENEWING/REBINDING state with ip4.src set to 10.0.0.6
# and ip4.dst set to 10.0.0.1.
@@ -5570,7 +5583,7 @@ request_ip=0
src_ip=$offer_ip
dst_ip=$server_ip
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 5.
OVS_WAIT_UNTIL([test 5 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5596,7 +5609,7 @@ request_ip=0
src_ip=$offer_ip
dst_ip=`ip_to_hex 255 255 255 255`
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 6.
OVS_WAIT_UNTIL([test 6 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5622,7 +5635,7 @@ request_ip=0
src_ip=$offer_ip
dst_ip=`ip_to_hex 255 255 255 255`
expected_dhcp_opts=""
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 06 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 06 $expected_dhcp_opts
# NXT_RESUMEs should be 7.
OVS_WAIT_UNTIL([test 7 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5648,7 +5661,7 @@ request_ip=0
src_ip=$offer_ip
dst_ip=`ip_to_hex 255 255 255 255`
expected_dhcp_opts=""
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 06 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 06 $expected_dhcp_opts
# NXT_RESUMEs should be 8.
OVS_WAIT_UNTIL([test 8 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5670,7 +5683,7 @@ rm -f 2.expected
ciaddr=`ip_to_hex 0 0 0 0`
src_ip=`ip_to_hex 10 0 0 6`
dst_ip=`ip_to_hex 10 0 0 4`
-test_dhcp 2 f00000000002 03 0 $ciaddr 0 0 1 $src_ip $dst_ip 1
+test_dhcp 2 f00000000002 03 0 $ciaddr 0 0 0 1 $src_ip $dst_ip 1
# NXT_RESUMEs should be 8.
OVS_WAIT_UNTIL([test 8 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5689,7 +5702,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=0
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 1 f00000000001 01 1 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
+test_dhcp 1 f00000000001 01 1 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
# NXT_RESUMEs should be 9.
OVS_WAIT_UNTIL([test 9 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5712,7 +5725,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 10 0 0 6`
request_ip=0
expected_dhcp_opts=0
-test_dhcp 2 f00000000002 07 0 $ciaddr $offer_ip $request_ip 0 ff1000000001
+test_dhcp 2 f00000000002 07 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001
# NXT_RESUMEs should be 10.
OVS_WAIT_UNTIL([test 10 = $(cat ofctl_monitor*.log | grep -c NXT_RESUME)])
@@ -5739,7 +5752,7 @@ dst_ip=$server_ip
# In the expected_dhcp_opts we should not see 330400000e10 which is
# dhcp lease time option and 0104ffffff00 which is subnet mask option.
expected_dhcp_opts=03040a00000136040a000001
-test_dhcp 2 f00000000002 08 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 08 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 11.
OVS_WAIT_UNTIL([test 11 = $(cat ofctl_monitor*.log | grep -c NXT_RESUME)])
@@ -5769,7 +5782,7 @@ dst_ip=$server_ip
# In the expected_dhcp_opts we should not see 330400000e10 which is
# dhcp lease time option.
expected_dhcp_opts=3a0400000fa0330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 12.
OVS_WAIT_UNTIL([test 12 = $(cat ofctl_monitor*.log | grep -c NXT_RESUME)])
@@ -5796,7 +5809,7 @@ dst_ip=$server_ip
# In the expected_dhcp_opts we should not see 330400000e10 which is
# dhcp lease time option and 0104ffffff00 which is subnet mask option.
expected_dhcp_opts=03040a00000136040a000001
-test_dhcp 2 f00000000002 08 0 $ciaddr $offer_ip $request_ip 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 08 0 $ciaddr $offer_ip $request_ip 0 1 $src_ip $dst_ip ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 13.
OVS_WAIT_UNTIL([test 13 = $(cat ofctl_monitor*.log | grep -c NXT_RESUME)])
@@ -5827,7 +5840,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=$offer_ip
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a00000142040a0a0a0a
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 14.
OVS_WAIT_UNTIL([test 14 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5858,7 +5871,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=$offer_ip
expected_dhcp_opts=330400000e100104ffffff0003040a00000136040a0000014210746573745f746674705f736572766572
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 15.
OVS_WAIT_UNTIL([test 15 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5889,7 +5902,7 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=$offer_ip
expected_dhcp_opts=771305746573743103636f6d00057465737432c006330400000e100104ffffff0003040a00000136040a000001
-test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
+test_dhcp 2 f00000000002 03 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 05 $expected_dhcp_opts
# NXT_RESUMEs should be 16.
OVS_WAIT_UNTIL([test 16 = `cat ofctl_monitor*.log | grep -c NXT_RESUME`])
@@ -5907,9 +5920,42 @@ server_ip=`ip_to_hex 10 0 0 1`
ciaddr=`ip_to_hex 0 0 0 0`
request_ip=0
expected_dhcp_opts=""
-test_dhcp 1 f00000000001 04 0 $ciaddr $offer_ip $request_ip 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
+test_dhcp 1 f00000000001 04 0 $ciaddr $offer_ip $request_ip 0 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
AT_CHECK([fgrep -iq 'DHCPDECLINE from f0:00:00:00:00:01, 10.0.0.4 duplicated' hv1/ovn-controller.log], [0], [])
+# Send Etherboot.
+
+reset_pcap_file hv1-vif1 hv1/vif1
+reset_pcap_file hv1-vif2 hv1/vif2
+rm -f 1.expected
+rm -f 2.expected
+
+ovn-nbctl --all destroy dhcp-option
+
+ovn-nbctl dhcp-options-create 10.0.0.0/24
+d3=$(ovn-nbctl --bare --columns=_uuid find dhcp_options cidr="10.0.0.0/24")
+ovn-nbctl dhcp-options-set-options $d3 \
+ server_id=10.0.0.1 server_mac=ff:10:00:00:00:01 \
+ lease_time=3600 router=10.0.0.1 bootfile_name_alt=\"filename\" \
+ bootfile_name=\"bootfile\"
+
+ovn-nbctl lsp-set-dhcpv4-options ls1-lp1 $d3
+
+offer_ip=`ip_to_hex 10 0 0 4`
+server_ip=`ip_to_hex 10 0 0 1`
+ciaddr=`ip_to_hex 0 0 0 0`
+request_ip=0
+boofile=4308626f6f7466696c65
+expected_dhcp_opts=${boofile}330400000e100104ffffff0003040a00000136040a000001
+test_dhcp 1 f00000000001 01 0 $ciaddr $offer_ip $request_ip 1 0 ff1000000001 $server_ip 02 $expected_dhcp_opts
+
+$PYTHON "$ovs_srcdir/utilities/ovs-pcap.in" hv1/vif1-tx.pcap > 1.packets
+cat 1.expected | cut -c -48 > expout
+AT_CHECK([cat 1.packets | cut -c -48], [0], [expout])
+# Skipping the IPv4 checksum.
+cat 1.expected | cut -c 53- > expout
+AT_CHECK([cat 1.packets | cut -c 53-], [0], [expout])
+
OVN_CLEANUP([hv1])
AT_CLEANUP
diff --git a/tests/test-ovn.c b/tests/test-ovn.c
index d94ab025d..96763be60 100644
--- a/tests/test-ovn.c
+++ b/tests/test-ovn.c
@@ -191,6 +191,7 @@ create_gen_opts(struct hmap *dhcp_opts, struct hmap *dhcpv6_opts,
dhcp_opt_add(dhcp_opts, "arp_cache_timeout", 35, "uint32");
dhcp_opt_add(dhcp_opts, "tcp_keepalive_interval", 38, "uint32");
dhcp_opt_add(dhcp_opts, "domain_search_list", 119, "domains");
+ dhcp_opt_add(dhcp_opts, "bootfile_name_alt", 300, "str");
/* DHCPv6 options. */
hmap_init(dhcpv6_opts);