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lib: Add support for SRv6 SID formats
Add functionalities to manage SRv6 SID formats (allocate / free). Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
This commit is contained in:
Carmine Scarpitta
parent
2e02bd2366
commit
021386a34e
132
lib/srv6.c
132
lib/srv6.c
@ -10,8 +10,10 @@
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#include "log.h"
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DEFINE_QOBJ_TYPE(srv6_locator);
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DEFINE_QOBJ_TYPE(srv6_sid_format);
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DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR, "SRV6 locator");
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DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR_CHUNK, "SRV6 locator chunk");
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DEFINE_MTYPE_STATIC(LIB, SRV6_SID_FORMAT, "SRv6 SID format");
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const char *seg6local_action2str(uint32_t action)
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{
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@ -154,6 +156,36 @@ void srv6_locator_chunk_free(struct srv6_locator_chunk **chunk)
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XFREE(MTYPE_SRV6_LOCATOR_CHUNK, *chunk);
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}
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struct srv6_sid_format *srv6_sid_format_alloc(const char *name)
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{
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struct srv6_sid_format *format = NULL;
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format = XCALLOC(MTYPE_SRV6_SID_FORMAT, sizeof(struct srv6_sid_format));
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strlcpy(format->name, name, sizeof(format->name));
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QOBJ_REG(format, srv6_sid_format);
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return format;
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}
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void srv6_sid_format_free(struct srv6_sid_format *format)
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{
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if (!format)
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return;
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QOBJ_UNREG(format);
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XFREE(MTYPE_SRV6_SID_FORMAT, format);
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}
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/**
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* Free an SRv6 SID format.
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*
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* @param val SRv6 SID format to be freed
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*/
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void delete_srv6_sid_format(void *val)
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{
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srv6_sid_format_free((struct srv6_sid_format *)val);
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}
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json_object *srv6_locator_chunk_json(const struct srv6_locator_chunk *chunk)
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{
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json_object *jo_root = NULL;
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@ -223,23 +255,47 @@ json_object *srv6_locator_json(const struct srv6_locator *loc)
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/* set prefix */
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json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength", loc->block_bits_length);
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if (loc->sid_format) {
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength",
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loc->sid_format->block_len);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength", loc->node_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength",
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loc->sid_format->node_len);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->sid_format->function_len);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->argument_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->sid_format->argument_len);
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
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json_object_string_add(jo_root, "behavior", "usid");
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (loc->sid_format->type == SRV6_SID_FORMAT_TYPE_USID)
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json_object_string_add(jo_root, "behavior", "usid");
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} else {
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength",
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loc->block_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength",
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loc->node_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->argument_bits_length);
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
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json_object_string_add(jo_root, "behavior", "usid");
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}
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/* set status_up */
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json_object_boolean_add(jo_root, "statusUp",
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@ -272,23 +328,47 @@ json_object *srv6_locator_detailed_json(const struct srv6_locator *loc)
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/* set prefix */
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json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength", loc->block_bits_length);
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if (loc->sid_format) {
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength",
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loc->sid_format->block_len);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength", loc->node_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength",
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loc->sid_format->node_len);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->sid_format->function_len);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->argument_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->sid_format->argument_len);
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
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json_object_string_add(jo_root, "behavior", "usid");
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (loc->sid_format->type == SRV6_SID_FORMAT_TYPE_USID)
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json_object_string_add(jo_root, "behavior", "usid");
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} else {
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength",
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loc->block_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength",
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loc->node_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->argument_bits_length);
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/* set true if the locator is a Micro-segment (uSID) locator */
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if (CHECK_FLAG(loc->flags, SRV6_LOCATOR_USID))
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json_object_string_add(jo_root, "behavior", "usid");
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}
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/* set algonum */
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json_object_int_add(jo_root, "algoNum", loc->algonum);
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61
lib/srv6.h
61
lib/srv6.h
@ -20,6 +20,8 @@
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#define SRH_BASE_HEADER_LENGTH 8
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#define SRH_SEGMENT_LENGTH 16
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#define SRV6_SID_FORMAT_NAME_SIZE 512
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#ifdef __cplusplus
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extern "C" {
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#endif
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@ -183,6 +185,61 @@ struct nexthop_srv6 {
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struct seg6_seg_stack *seg6_segs;
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};
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/* SID format type */
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enum srv6_sid_format_type {
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SRV6_SID_FORMAT_TYPE_UNSPEC = 0,
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/* SRv6 SID uncompressed format */
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SRV6_SID_FORMAT_TYPE_UNCOMPRESSED = 1,
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/* SRv6 SID compressed uSID format */
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SRV6_SID_FORMAT_TYPE_USID = 2,
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};
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/* SRv6 SID format */
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struct srv6_sid_format {
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/* Name of the format */
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char name[SRV6_SID_FORMAT_NAME_SIZE];
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/* Format type: uncompressed vs compressed */
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enum srv6_sid_format_type type;
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/*
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* Lengths of block/node/function/argument parts of the SIDs allocated
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* using this format
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*/
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uint8_t block_len;
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uint8_t node_len;
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uint8_t function_len;
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uint8_t argument_len;
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union {
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/* Configuration settings for compressed uSID format type */
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struct {
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/* Start of the Local ID Block (LIB) range */
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uint32_t lib_start;
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/* Start/End of the Explicit LIB range */
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uint32_t elib_start;
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uint32_t elib_end;
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/* Start/End of the Wide LIB range */
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uint32_t wlib_start;
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uint32_t wlib_end;
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/* Start/End of the Explicit Wide LIB range */
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uint32_t ewlib_start;
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} usid;
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/* Configuration settings for uncompressed format type */
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struct {
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/* Start of the Explicit range */
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uint32_t explicit_start;
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} uncompressed;
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} config;
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QOBJ_FIELDS;
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};
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DECLARE_QOBJ_TYPE(srv6_sid_format);
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static inline const char *seg6_mode2str(enum seg6_mode_t mode)
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{
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switch (mode) {
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@ -260,6 +317,10 @@ json_object *srv6_locator_detailed_json(const struct srv6_locator *loc);
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json_object *
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srv6_locator_chunk_detailed_json(const struct srv6_locator_chunk *chunk);
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extern struct srv6_sid_format *srv6_sid_format_alloc(const char *name);
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extern void srv6_sid_format_free(struct srv6_sid_format *format);
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extern void delete_srv6_sid_format(void *format);
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#ifdef __cplusplus
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}
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#endif
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