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Diffstat (limited to 'staticd/static_srv6.h')
| -rw-r--r-- | staticd/static_srv6.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/staticd/static_srv6.h b/staticd/static_srv6.h new file mode 100644 index 0000000000..bed0ab7fa5 --- /dev/null +++ b/staticd/static_srv6.h @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * STATICd - Segment Routing over IPv6 (SRv6) header + * Copyright (C) 2025 Alibaba Inc. + * Yuqing Zhao + * Lingyu Zhang + */ +#ifndef __STATIC_SRV6_H__ +#define __STATIC_SRV6_H__ + +#include "vrf.h" +#include "srv6.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Attributes for an SRv6 SID */ +struct static_srv6_sid_attributes { + /* VRF name */ + char vrf_name[VRF_NAMSIZ]; + char ifname[IFNAMSIZ]; + struct in6_addr nh6; +}; + +/* Static SRv6 SID */ +struct static_srv6_sid { + /* SRv6 SID address */ + struct prefix_ipv6 addr; + /* behavior bound to the SRv6 SID */ + enum srv6_endpoint_behavior_codepoint behavior; + /* SID attributes */ + struct static_srv6_sid_attributes attributes; + + /* SRv6 SID flags */ + uint8_t flags; +/* + * this SRv6 SID has been allocated by SID Manager + * and can be installed in the zebra RIB + */ +#define STATIC_FLAG_SRV6_SID_VALID (1 << 0) +/* this SRv6 SID has been installed in the zebra RIB */ +#define STATIC_FLAG_SRV6_SID_SENT_TO_ZEBRA (1 << 1) + + char locator_name[SRV6_LOCNAME_SIZE]; + struct static_srv6_locator *locator; +}; + +struct static_srv6_locator { + char name[SRV6_LOCNAME_SIZE]; + struct prefix_ipv6 prefix; + + /* + * Bit length of SRv6 locator described in + * draft-ietf-bess-srv6-services-05#section-3.2.1 + */ + uint8_t block_bits_length; + uint8_t node_bits_length; + uint8_t function_bits_length; + uint8_t argument_bits_length; + + uint8_t flags; +}; + +/* List of SRv6 SIDs. */ +extern struct list *srv6_locators; +extern struct list *srv6_sids; + +/* + * Allocate an SRv6 SID object and initialize its fields, SID address and + * behavor. + */ +extern struct static_srv6_sid *static_srv6_sid_alloc(struct prefix_ipv6 *addr); +extern void static_srv6_sid_free(struct static_srv6_sid *sid); +/* Look-up an SRv6 SID in the list of SRv6 SIDs. */ +extern struct static_srv6_sid *static_srv6_sid_lookup(struct prefix_ipv6 *sid_addr); +/* + * Remove an SRv6 SID from the zebra RIB (if it was previously installed) and + * release the memory previously allocated for the SID. + */ +extern void static_srv6_sid_del(struct static_srv6_sid *sid); + +/* Initialize SRv6 data structures. */ +extern void static_srv6_init(void); +/* Clean up all the SRv6 data structures. */ +extern void static_srv6_cleanup(void); + +struct static_srv6_locator *static_srv6_locator_alloc(const char *name); +void static_srv6_locator_free(struct static_srv6_locator *locator); +struct static_srv6_locator *static_srv6_locator_lookup(const char *name); + +void delete_static_srv6_sid(void *val); +void delete_static_srv6_locator(void *val); + +#ifdef __cplusplus +} +#endif + +#endif /* __STATIC_SRV6_H__ */ |