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authorJohn Lo <loj@cisco.com>2017-11-14 13:19:26 -0500
committerDave Barach <openvpp@barachs.net>2017-11-16 11:25:51 +0000
commit70bfcaf47779340951c1e6f169b1cedcabe708d1 (patch)
treeb6e1378942f278e914b7139d1210562d943cb680 /src/vnet/dhcp/dhcp_api.c
parent9d72120a6986e642c5b16c8650ad266188adf142 (diff)
Add Support of DHCP VSS Type 0 where VPN-ID is ASCII
Enhence support of DHCP VSS (Virtual Subnet Selection) to include VSS type 0 where VSS info is a NVT (Network Virtual Terminal) ASCII VPN ID where the ASCII string MUST NOT be terminated with a zero byte. Existing code already support VSS type 1, where VSS information is a RFC 2685 VPN-ID of 7 bytes with 3 bytes OUI and 4 bytes VPN index, and VSS type 255 indicating global VPN. Change-Id: I54edbc447c89a2aacd1cc9fc72bd5ba386037608 Signed-off-by: John Lo <loj@cisco.com>
Diffstat (limited to 'src/vnet/dhcp/dhcp_api.c')
-rw-r--r--src/vnet/dhcp/dhcp_api.c36
1 files changed, 27 insertions, 9 deletions
diff --git a/src/vnet/dhcp/dhcp_api.c b/src/vnet/dhcp/dhcp_api.c
index d6984f2d083..ad96e027f57 100644
--- a/src/vnet/dhcp/dhcp_api.c
+++ b/src/vnet/dhcp/dhcp_api.c
@@ -55,14 +55,16 @@ static void
vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp)
{
vl_api_dhcp_proxy_set_vss_reply_t *rmp;
+ u8 *vpn_ascii_id;
int rv;
- rv = dhcp_proxy_set_vss ((mp->is_ipv6 ?
- FIB_PROTOCOL_IP6 :
- FIB_PROTOCOL_IP4),
- ntohl (mp->tbl_id),
- ntohl (mp->oui),
- ntohl (mp->fib_id), (int) mp->is_add == 0);
+ mp->vpn_ascii_id[sizeof (mp->vpn_ascii_id) - 1] = 0;
+ vpn_ascii_id = format (0, "%s", mp->vpn_ascii_id);
+ rv =
+ dhcp_proxy_set_vss ((mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4),
+ ntohl (mp->tbl_id), mp->vss_type, vpn_ascii_id,
+ ntohl (mp->oui), ntohl (mp->vpn_index),
+ mp->is_add == 0);
REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY);
}
@@ -147,11 +149,27 @@ dhcp_send_details (fib_protocol_t proto,
vss = dhcp_get_vss_info (&dhcp_proxy_main, proxy->rx_fib_index, proto);
- if (NULL != vss)
+ if (vss)
{
- mp->vss_oui = htonl (vss->oui);
- mp->vss_fib_id = htonl (vss->fib_id);
+ mp->vss_type = vss->vss_type;
+ if (vss->vss_type == VSS_TYPE_ASCII)
+ {
+ u32 id_len = vec_len (vss->vpn_ascii_id);
+ clib_memcpy (mp->vss_vpn_ascii_id, vss->vpn_ascii_id, id_len);
+ }
+ else if (vss->vss_type == VSS_TYPE_VPN_ID)
+ {
+ u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8)
+ + ((u32) vss->vpn_id[2]);
+ u32 fib_id = ((u32) vss->vpn_id[3] << 24) +
+ ((u32) vss->vpn_id[4] << 16) + ((u32) vss->vpn_id[5] << 8) +
+ ((u32) vss->vpn_id[6]);
+ mp->vss_oui = htonl (oui);
+ mp->vss_fib_id = htonl (fib_id);
+ }
}
+ else
+ mp->vss_type = VSS_TYPE_INVALID;
vec_foreach_index (count, proxy->dhcp_servers)
{