diff options
Diffstat (limited to 'zebra/zebra_srv6.h')
| -rw-r--r-- | zebra/zebra_srv6.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/zebra/zebra_srv6.h b/zebra/zebra_srv6.h index 92e4fcf912..e81d182419 100644 --- a/zebra/zebra_srv6.h +++ b/zebra/zebra_srv6.h @@ -38,6 +38,70 @@ #define SRV6_SID_FORMAT_UNCOMPRESSED_F4024_EXPLICIT_RANGE_START 0xFF00 #define SRV6_SID_FORMAT_UNCOMPRESSED_F4024_FUNC_UNRESERVED_MIN 0x40 +/* uSID Wide LIB */ +struct wide_lib { + uint32_t func; + uint32_t num_func_allocated; + uint32_t first_available_func; + struct list *func_allocated; + struct list *func_released; +}; + +/* + * SRv6 SID block. + * + * A SID block is an IPv6 prefix from which SRv6 SIDs are allocated. + * Example: + * SID block = fc00:0::/32 + * SID 1 = fc00:0:1:e000:: + * SID 2 = fc00:0:1:fe00:: + * ... + */ +struct zebra_srv6_sid_block { + /* Prefix of this block, e.g. fc00:0::/32 */ + struct prefix_ipv6 prefix; + + /* Reference counter */ + unsigned long refcnt; + + /* + * Pointer to the SID format that defines the structure of the SIDs + * allocated from this block + */ + struct zebra_srv6_sid_format *sid_format; + + /* + * Run-time information/state of this SID block. + * + * This includes stuff like how many SID functions have been allocated + * from this block, which functions are still available to be allocated + * and so on... + */ + union { + /* Information/state for compressed uSID format */ + struct { + /* uSID Local ID Block (LIB) */ + struct { + uint32_t num_func_allocated; + uint32_t first_available_func; + struct list *func_allocated; + struct list *func_released; + } lib; + + /* uSID Wide LIB */ + struct wide_lib *wide_lib; + } usid; + + /* Information/state for uncompressed SID format */ + struct { + uint32_t num_func_allocated; + uint32_t first_available_func; + struct list *func_allocated; + struct list *func_released; + } uncompressed; + } u; +}; + /* SRv6 instance structure. */ struct zebra_srv6 { struct list *locators; @@ -47,6 +111,9 @@ struct zebra_srv6 { /* SRv6 SID formats */ struct list *sid_formats; + + /* SRv6 SID blocks */ + struct list *sid_blocks; }; /* declare hooks for the basic API, so that it can be specialized or served @@ -103,4 +170,16 @@ void srv6_sid_format_register(struct srv6_sid_format *format); void srv6_sid_format_unregister(struct srv6_sid_format *format); struct srv6_sid_format *srv6_sid_format_lookup(const char *name); +uint32_t *zebra_srv6_sid_func_alloc(uint32_t func); +void zebra_srv6_sid_func_free(uint32_t *func); +void delete_zebra_srv6_sid_func(void *val); + +extern struct zebra_srv6_sid_block * +zebra_srv6_sid_block_alloc(struct zebra_srv6_sid_format *format, + struct prefix_ipv6 *prefix); +extern void zebra_srv6_sid_block_free(struct zebra_srv6_sid_block *block); +extern void delete_zebra_srv6_sid_block(void *val); +extern struct zebra_srv6_sid_block * +zebra_srv6_sid_block_lookup(struct prefix_ipv6 *prefix); + #endif /* _ZEBRA_SRV6_H */ |