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authorTetsuya Murakami <tetsuya.mrk@gmail.com>2021-12-10 08:11:07 -0800
committerOle Tr�an <otroan@employees.org>2022-01-05 10:52:22 +0000
commitbe872a8ddae5812eb5690841fbc066967d0d9bb3 (patch)
treed753cdc9ab994a5744f45be0ef1fec82831838e6 /src/plugins/srv6-mobile/gtp6_d.c
parentdfc853c0ac2f8f15765a51268a53b023d4cf6c65 (diff)
srv6-mobile: Update GTP4/6.D function
GTP4/6.D behavior is updated as shown below. 1. When receiving GTP-U message or IPv6 linklocal destination in inner IP, GTP packet is tnralated to SRv6. 2. When receiving T-PDU packet, OuterIP/UDP/GTP headers are stripped off and Inner IP is encapsulated into SRv6 based on L3VPN SRv6 manner. Type: feature Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com> Change-Id: I6092c98ea80236d54017f84c5b35cca0b645f034 Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com>
Diffstat (limited to 'src/plugins/srv6-mobile/gtp6_d.c')
-rw-r--r--src/plugins/srv6-mobile/gtp6_d.c118
1 files changed, 88 insertions, 30 deletions
diff --git a/src/plugins/srv6-mobile/gtp6_d.c b/src/plugins/srv6-mobile/gtp6_d.c
index c62320b33fd..2d464fbf760 100644
--- a/src/plugins/srv6-mobile/gtp6_d.c
+++ b/src/plugins/srv6-mobile/gtp6_d.c
@@ -61,12 +61,13 @@ static u8 fn_name[] = "SRv6-End.M.GTP6.D-plugin";
static u8 keyword_str[] = "end.m.gtp6.d";
static u8 def_str[] =
"Endpoint function with dencapsulation for IPv6/GTP tunnel";
-static u8 param_str[] = "<sr-prefix>/<sr-prefixlen> [nhtype <nhtype>]";
+static u8 param_str[] =
+ "<sr-prefix>/<sr-prefixlen> [nhtype <nhtype>] fib-table <id>";
static u8 *
clb_format_srv6_end_m_gtp6_d (u8 * s, va_list * args)
{
- srv6_end_gtp6_param_t *ls_mem = va_arg (*args, void *);
+ srv6_end_gtp6_d_param_t *ls_mem = va_arg (*args, void *);
s = format (s, "SRv6 End gtp6.d\n\t");
@@ -77,16 +78,18 @@ clb_format_srv6_end_m_gtp6_d (u8 * s, va_list * args)
if (ls_mem->nhtype != SRV6_NHTYPE_NONE)
{
if (ls_mem->nhtype == SRV6_NHTYPE_IPV4)
- s = format (s, ", NHType IPv4\n");
+ s = format (s, ", NHType IPv4");
else if (ls_mem->nhtype == SRV6_NHTYPE_IPV6)
- s = format (s, ", NHType IPv6\n");
+ s = format (s, ", NHType IPv6");
else if (ls_mem->nhtype == SRV6_NHTYPE_NON_IP)
- s = format (s, ", NHType Non-IP\n");
+ s = format (s, ", NHType Non-IP");
else
- s = format (s, ", NHType Unknow(%d)\n", ls_mem->nhtype);
+ s = format (s, ", NHType Unknow(%d)", ls_mem->nhtype);
}
- else
- s = format (s, "\n");
+
+ s = format (s, " FIB table %d", ls_mem->fib_table);
+
+ s = format (s, " Drop In %d", ls_mem->drop_in);
return s;
}
@@ -95,32 +98,54 @@ static uword
clb_unformat_srv6_end_m_gtp6_d (unformat_input_t * input, va_list * args)
{
void **plugin_mem_p = va_arg (*args, void **);
- srv6_end_gtp6_param_t *ls_mem;
+ srv6_end_gtp6_d_param_t *ls_mem;
ip6_address_t sr_prefix;
u32 sr_prefixlen;
- u8 nhtype;
+ u8 nhtype = SRV6_NHTYPE_NONE;
+ bool drop_in = false;
+ bool config = false;
+ u32 fib_table = 0;
- if (unformat (input, "end.m.gtp6.d %U/%d nh-type ipv4",
- unformat_ip6_address, &sr_prefix, &sr_prefixlen))
- {
- nhtype = SRV6_NHTYPE_IPV4;
- }
- else if (unformat (input, "end.m.gtp6.d %U/%d nh-type ipv6",
- unformat_ip6_address, &sr_prefix, &sr_prefixlen))
- {
- nhtype = SRV6_NHTYPE_IPV6;
- }
- else if (unformat (input, "end.m.gtp6.d %U/%d nh-type none",
- unformat_ip6_address, &sr_prefix, &sr_prefixlen))
- {
- nhtype = SRV6_NHTYPE_NON_IP;
- }
- else if (unformat (input, "end.m.gtp6.d %U/%d",
- unformat_ip6_address, &sr_prefix, &sr_prefixlen))
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- nhtype = SRV6_NHTYPE_NONE;
+ if (unformat (input, "end.m.gtp6.d %U/%d nh-type ipv4 fib-table %d",
+ unformat_ip6_address, &sr_prefix, &sr_prefixlen,
+ &fib_table))
+ {
+ config = true;
+ nhtype = SRV6_NHTYPE_IPV4;
+ }
+ else if (unformat (input, "end.m.gtp6.d %U/%d nh-type ipv6 fib-table %d",
+ unformat_ip6_address, &sr_prefix, &sr_prefixlen,
+ &fib_table))
+ {
+ config = true;
+ nhtype = SRV6_NHTYPE_IPV6;
+ }
+ else if (unformat (input, "end.m.gtp6.d %U/%d nh-type none",
+ unformat_ip6_address, &sr_prefix, &sr_prefixlen))
+ {
+ config = true;
+ nhtype = SRV6_NHTYPE_NON_IP;
+ }
+ else if (unformat (input, "end.m.gtp6.d %U/%d fib-table %d",
+ unformat_ip6_address, &sr_prefix, &sr_prefixlen,
+ &fib_table))
+ {
+ config = true;
+ nhtype = SRV6_NHTYPE_NONE;
+ }
+ else if (unformat (input, "drop-in"))
+ {
+ drop_in = true;
+ }
+ else
+ {
+ return 0;
+ }
}
- else
+
+ if (!config)
{
return 0;
}
@@ -134,6 +159,12 @@ clb_unformat_srv6_end_m_gtp6_d (unformat_input_t * input, va_list * args)
ls_mem->nhtype = nhtype;
+ ls_mem->drop_in = drop_in;
+
+ ls_mem->fib_table = fib_table;
+ ls_mem->fib4_index = ip4_fib_index_from_table_id (fib_table);
+ ls_mem->fib6_index = ip6_fib_index_from_table_id (fib_table);
+
return 1;
}
@@ -144,9 +175,15 @@ clb_creation_srv6_end_m_gtp6_d (ip6_sr_localsid_t * localsid)
}
static int
+clb_creation_srv6_end_m_gtp6_d_2 (ip6_sr_policy_t *sr_policy)
+{
+ return 0;
+}
+
+static int
clb_removal_srv6_end_m_gtp6_d (ip6_sr_localsid_t * localsid)
{
- srv6_end_gtp6_param_t *ls_mem;
+ srv6_end_gtp6_d_param_t *ls_mem;
ls_mem = localsid->plugin_mem;
@@ -155,6 +192,18 @@ clb_removal_srv6_end_m_gtp6_d (ip6_sr_localsid_t * localsid)
return 0;
}
+static int
+clb_removal_srv6_end_m_gtp6_d_2 (ip6_sr_policy_t *sr_policy)
+{
+ srv6_end_gtp6_d_param_t *ls_mem;
+
+ ls_mem = sr_policy->plugin_mem;
+
+ clib_mem_free (ls_mem);
+
+ return 0;
+}
+
static clib_error_t *
srv6_end_m_gtp6_d_init (vlib_main_t * vm)
{
@@ -193,6 +242,15 @@ srv6_end_m_gtp6_d_init (vlib_main_t * vm)
if (rc < 0)
clib_error_return (0, "SRv6 Endpoint GTP6.D LocalSID function"
"couldn't be registered");
+
+ rc = sr_policy_register_function (
+ vm, fn_name, keyword_str, def_str, param_str, 128, // prefix len
+ &dpo_type, clb_format_srv6_end_m_gtp6_d, clb_unformat_srv6_end_m_gtp6_d,
+ clb_creation_srv6_end_m_gtp6_d_2, clb_removal_srv6_end_m_gtp6_d_2);
+ if (rc < 0)
+ clib_error_return (0, "SRv6 GTP6.D Steering function"
+ "couldn't be registered");
+
return 0;
}