diff options
Diffstat (limited to 'lib/srv6.h')
| -rw-r--r-- | lib/srv6.h | 139 |
1 files changed, 139 insertions, 0 deletions
@@ -20,6 +20,8 @@ #define SRH_BASE_HEADER_LENGTH 8 #define SRH_SEGMENT_LENGTH 16 +#define SRV6_SID_FORMAT_NAME_SIZE 512 + #ifdef __cplusplus extern "C" { #endif @@ -104,6 +106,10 @@ struct seg6local_context { struct in6_addr nh6; uint32_t table; struct seg6local_flavors_info flv; + uint8_t block_len; + uint8_t node_len; + uint8_t function_len; + uint8_t argument_len; }; struct srv6_locator { @@ -127,6 +133,12 @@ struct srv6_locator { uint8_t flags; #define SRV6_LOCATOR_USID (1 << 0) /* The SRv6 Locator is a uSID Locator */ + /* Pointer to the SID format. */ + struct srv6_sid_format *sid_format; + + /* Pointer to the parent SID block of the locator. */ + void *sid_block; + QOBJ_FIELDS; }; DECLARE_QOBJ_TYPE(srv6_locator); @@ -183,6 +195,72 @@ struct nexthop_srv6 { struct seg6_seg_stack *seg6_segs; }; +/* SID format type */ +enum srv6_sid_format_type { + SRV6_SID_FORMAT_TYPE_UNSPEC = 0, + /* SRv6 SID uncompressed format */ + SRV6_SID_FORMAT_TYPE_UNCOMPRESSED = 1, + /* SRv6 SID compressed uSID format */ + SRV6_SID_FORMAT_TYPE_USID = 2, +}; + +/* SRv6 SID format */ +struct srv6_sid_format { + /* Name of the format */ + char name[SRV6_SID_FORMAT_NAME_SIZE]; + + /* Format type: uncompressed vs compressed */ + enum srv6_sid_format_type type; + + /* + * Lengths of block/node/function/argument parts of the SIDs allocated + * using this format + */ + uint8_t block_len; + uint8_t node_len; + uint8_t function_len; + uint8_t argument_len; + + union { + /* Configuration settings for compressed uSID format type */ + struct { + /* Start of the Local ID Block (LIB) range */ + uint32_t lib_start; + + /* Start/End of the Explicit LIB range */ + uint32_t elib_start; + uint32_t elib_end; + + /* Start/End of the Wide LIB range */ + uint32_t wlib_start; + uint32_t wlib_end; + + /* Start/End of the Explicit Wide LIB range */ + uint32_t ewlib_start; + } usid; + + /* Configuration settings for uncompressed format type */ + struct { + /* Start of the Explicit range */ + uint32_t explicit_start; + } uncompressed; + } config; + + QOBJ_FIELDS; +}; +DECLARE_QOBJ_TYPE(srv6_sid_format); + +/* Context for an SRv6 SID */ +struct srv6_sid_ctx { + /* Behavior associated with the SID */ + enum seg6local_action_t behavior; + + /* Behavior-specific attributes */ + struct in_addr nh4; + struct in6_addr nh6; + vrf_id_t vrf_id; +}; + static inline const char *seg6_mode2str(enum seg6_mode_t mode) { switch (mode) { @@ -245,6 +323,55 @@ seg6local_action2str(uint32_t action); const char *seg6local_context2str(char *str, size_t size, const struct seg6local_context *ctx, uint32_t action); +void seg6local_context2json(const struct seg6local_context *ctx, + uint32_t action, json_object *json); + +static inline const char *srv6_sid_ctx2str(char *str, size_t size, + const struct srv6_sid_ctx *ctx) +{ + int len = 0; + + len += snprintf(str + len, size - len, "%s", + seg6local_action2str(ctx->behavior)); + + switch (ctx->behavior) { + case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC: + break; + + case ZEBRA_SEG6_LOCAL_ACTION_END: + snprintf(str + len, size - len, " USP"); + break; + + case ZEBRA_SEG6_LOCAL_ACTION_END_X: + case ZEBRA_SEG6_LOCAL_ACTION_END_DX6: + snprintfrr(str + len, size - len, " nh6 %pI6", &ctx->nh6); + break; + + case ZEBRA_SEG6_LOCAL_ACTION_END_DX4: + snprintfrr(str + len, size - len, " nh4 %pI4", &ctx->nh4); + break; + + case ZEBRA_SEG6_LOCAL_ACTION_END_T: + case ZEBRA_SEG6_LOCAL_ACTION_END_DT6: + case ZEBRA_SEG6_LOCAL_ACTION_END_DT4: + case ZEBRA_SEG6_LOCAL_ACTION_END_DT46: + snprintf(str + len, size - len, " vrf_id %u", ctx->vrf_id); + break; + + case ZEBRA_SEG6_LOCAL_ACTION_END_DX2: + case ZEBRA_SEG6_LOCAL_ACTION_END_B6: + case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP: + case ZEBRA_SEG6_LOCAL_ACTION_END_BM: + case ZEBRA_SEG6_LOCAL_ACTION_END_S: + case ZEBRA_SEG6_LOCAL_ACTION_END_AS: + case ZEBRA_SEG6_LOCAL_ACTION_END_AM: + case ZEBRA_SEG6_LOCAL_ACTION_END_BPF: + default: + snprintf(str + len, size - len, " unknown(%s)", __func__); + } + + return str; +} int snprintf_seg6_segs(char *str, size_t size, const struct seg6_segs *segs); @@ -254,12 +381,24 @@ extern struct srv6_locator_chunk *srv6_locator_chunk_alloc(void); extern void srv6_locator_free(struct srv6_locator *locator); extern void srv6_locator_chunk_list_free(void *data); extern void srv6_locator_chunk_free(struct srv6_locator_chunk **chunk); +extern void srv6_locator_copy(struct srv6_locator *copy, + const struct srv6_locator *locator); json_object *srv6_locator_chunk_json(const struct srv6_locator_chunk *chunk); json_object *srv6_locator_json(const struct srv6_locator *loc); json_object *srv6_locator_detailed_json(const struct srv6_locator *loc); json_object * srv6_locator_chunk_detailed_json(const struct srv6_locator_chunk *chunk); +extern struct srv6_sid_format *srv6_sid_format_alloc(const char *name); +extern void srv6_sid_format_free(struct srv6_sid_format *format); +extern void delete_srv6_sid_format(void *format); + +extern struct srv6_sid_ctx *srv6_sid_ctx_alloc(enum seg6local_action_t behavior, + struct in_addr *nh4, + struct in6_addr *nh6, + vrf_id_t vrf_id); +extern void srv6_sid_ctx_free(struct srv6_sid_ctx *ctx); + #ifdef __cplusplus } #endif |