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Diffstat (limited to 'pathd/path_ted.h')
| -rw-r--r-- | pathd/path_ted.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/pathd/path_ted.h b/pathd/path_ted.h new file mode 100644 index 0000000..c6897b1 --- /dev/null +++ b/pathd/path_ted.h @@ -0,0 +1,178 @@ +/* + * Copyright (C) 2020 Volta Networks, Inc + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + */ + +#ifndef _PATH_TED_H +#define _PATH_TED_H + +#ifdef __cplusplus + +extern "C" { +#endif + +#include <zebra.h> + +#include <stdbool.h> + +#include <debug.h> +#include "linklist.h" +#include "log.h" +#include "command.h" +#include "stream.h" +#include "prefix.h" +#include "zclient.h" +#include "link_state.h" + +extern struct ted_state ted_state_g; +#define TIMER_RETRY_DELAY 5 /* Timeout in seconds between ls sync request */ +#define TED_KEY 1 +#define TED_ASN 1 +#define TED_NAME "PATHD TED" + +enum igp_import { + IMPORT_UNKNOWN = 0, + IMPORT_ISIS, + IMPORT_OSPFv2, + IMPORT_OSPFv3 +}; +struct ted_state { + struct thread_master *main; + /* Status of TED: enable or disable */ + bool enabled; + /* From which igp is going to receive data */ + enum igp_import import; + /* The TED itself as in link_state.h */ + struct ls_ted *ted; + /* Timer for ted sync */ + struct thread *t_link_state_sync; + /* Timer for refresh sid in segment list */ + struct thread *t_segment_list_refresh; + /* delay interval in seconds */ + uint32_t link_state_delay_interval; + /* delay interval refresh in seconds */ + uint32_t segment_list_refresh_interval; + struct debug dbg; +}; +/* Debug flags. */ +#define PATH_TED_DEBUG_BASIC 0x01 +#define PATH_TED_DEBUG(fmt, ...) \ + do { \ + if (DEBUG_FLAGS_CHECK(&ted_state_g.dbg, PATH_TED_DEBUG_BASIC)) \ + DEBUGD(&ted_state_g.dbg, "mpls-te: " fmt, ##__VA_ARGS__); \ + } while (0) + +#define PATH_TED_ERROR(fmt, ...) \ + do { \ + if (DEBUG_FLAGS_CHECK(&ted_state_g.dbg, PATH_TED_DEBUG_BASIC)) \ + DEBUGE(&ted_state_g.dbg, "mpls-te: " fmt, ##__VA_ARGS__); \ + } while (0) +#define PATH_TED_WARN(fmt, ...) \ + do { \ + if (DEBUG_FLAGS_CHECK(&ted_state_g.dbg, PATH_TED_DEBUG_BASIC)) \ + DEBUGW(&ted_state_g.dbg, "mpls-te: " fmt, ##__VA_ARGS__); \ + } while (0) +#define PATH_TED_INFO(fmt, ...) \ + do { \ + if (DEBUG_FLAGS_CHECK(&ted_state_g.dbg, PATH_TED_DEBUG_BASIC)) \ + DEBUGI(&ted_state_g.dbg, "mpls-te: " fmt, ##__VA_ARGS__); \ + } while (0) + +/* TED management functions */ +bool path_ted_is_initialized(void); +void path_ted_init(struct thread_master *master); +uint32_t path_ted_teardown(void); +void path_ted_timer_sync_cancel(void); +void path_ted_timer_refresh_cancel(void); +int path_ted_segment_list_refresh(void); + +/* TED configuration functions */ +uint32_t path_ted_config_write(struct vty *vty); + +/* TED util functions */ +/* clang-format off */ +#define LS_MSG_EVENT_PRINT(event) event == LS_MSG_EVENT_ADD?"add"\ + : event == LS_MSG_EVENT_DELETE?"del"\ + : event == LS_MSG_EVENT_UPDATE?"upd"\ + : event == LS_MSG_EVENT_SYNC?"syn"\ + : event == LS_MSG_EVENT_SYNC?"und" : "none" +#define LS_MSG_TYPE_PRINT(type) type == LS_MSG_TYPE_NODE?"node"\ + : type == LS_MSG_TYPE_ATTRIBUTES?"att"\ + : type == LS_MSG_TYPE_PREFIX?"pre" : "none" +#define LS_IGP_PRINT(type) type == ISIS_L1?"ISIS_L1"\ + : type == ISIS_L2?"ISIS_L2"\ + : type == DIRECT?"DIRECT"\ + : type == STATIC?"STATIC"\ + : type == OSPFv2?"OSPFv2" : "none" +#define PATH_TED_IGP_PRINT(type) type == IMPORT_OSPFv2?"OSPFv2"\ + : type == IMPORT_OSPFv3?"OSPFv3"\ + : type == IMPORT_ISIS?"ISIS" : "none" +/* clang-format on */ + + +uint32_t path_ted_get_current_igp(uint32_t); +/* TED Query functions */ + +/* + * Type of queries from draft-ietf-spring-segment-routing-policy-07 for types + * f,c,e + */ + +/** + * Search for sid based in prefix and optional algo + * + * @param prefix Net prefix to resolv + * @param algo Algorithm for link state + * + * @return sid of attribute + */ +uint32_t path_ted_query_type_c(struct prefix *prefix, uint8_t algo); + +/** + * Search for sid based in prefix and interface id + * + * @param prefix Net prefix to resolv + * @param iface_id The interface id + * + * @return sid of attribute + */ +uint32_t path_ted_query_type_e(struct prefix *prefix, uint32_t iface_id); + +/** + * Search for sid based in local, remote pair + * + * @param local local ip of attribute + * @param remote remote ip of attribute + * + * @return sid of attribute + */ +uint32_t path_ted_query_type_f(struct ipaddr *local, struct ipaddr *remote); + + +/** + * Handle the received opaque msg + * + * @param msg Holds the ted data + * + * @return sid of attribute + */ +uint32_t path_ted_rcvd_message(struct ls_message *msg); + +#ifdef __cplusplus +} +#endif + +#endif /* _PATH_TED_H */ |