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zebra: add default SRv6 Function length

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Add default SRv6 Function Length for usecases like SRv6 L3VPN. The
default value (16) comes from the default Function length for SRv6
L3VPN in BGPd.

Signed-off-by: Ryoga Saito <ryoga.saito@linecorp.com>
This commit is contained in:
Ryoga Saito 2022-09-20 18:24:50 +09:00
parent 0f926d9141
commit 85521aaabd
2 changed files with 13 additions and 2 deletions
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11
zebra/zebra_srv6_vty.c
View File

@ -281,7 +281,14 @@ DEFPY (locator_prefix,
struct srv6_locator_chunk *chunk = NULL;
struct listnode *node = NULL;
if (prefix->prefixlen != 64) {
vty_out(vty,
"%% Invalid argument: Unsupported locator format\n");
return CMD_WARNING_CONFIG_FAILED;
}
locator->prefix = *prefix;
func_bit_len = func_bit_len ?: ZEBRA_SRV6_FUNCTION_LENGTH;
/*
* TODO(slankdev): please support variable node-bit-length.
@ -298,8 +305,8 @@ DEFPY (locator_prefix,
* user should use a pattern of zeros as a filler.
* (3) The Node Id portion (LSBs) cannot exceed 24 bits.
*/
locator->block_bits_length = prefix->prefixlen - 24;
locator->node_bits_length = 24;
locator->block_bits_length = ZEBRA_SRV6_LOCATOR_BLOCK_LENGTH;
locator->node_bits_length = ZEBRA_SRV6_LOCATOR_NODE_LENGTH;
locator->function_bits_length = func_bit_len;
locator->argument_bits_length = 0;

4
zebra/zebra_srv6_vty.h
View File

@ -20,6 +20,10 @@
#ifndef _ZEBRA_SRV6_VTY_H
#define _ZEBRA_SRV6_VTY_H
#define ZEBRA_SRV6_LOCATOR_BLOCK_LENGTH 40
#define ZEBRA_SRV6_LOCATOR_NODE_LENGTH 24
#define ZEBRA_SRV6_FUNCTION_LENGTH 16
extern void zebra_srv6_vty_init(void);
#endif /* _ZEBRA_SRV6_VTY_H */