/* PIM for Quagga Copyright (C) 2008 Everton da Silva Marques 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 General Public License along with this program; see the file COPYING; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef PIM_TLV_H #define PIM_TLV_H #include #include "config.h" #include "if.h" #include "linklist.h" #define PIM_MSG_OPTION_TYPE_HOLDTIME (1) #define PIM_MSG_OPTION_TYPE_LAN_PRUNE_DELAY (2) #define PIM_MSG_OPTION_TYPE_DR_PRIORITY (19) #define PIM_MSG_OPTION_TYPE_GENERATION_ID (20) #define PIM_MSG_OPTION_TYPE_DM_STATE_REFRESH (21) #define PIM_MSG_OPTION_TYPE_ADDRESS_LIST (24) typedef uint32_t pim_hello_options; #define PIM_OPTION_MASK_HOLDTIME (1 << 0) /* recv holdtime */ #define PIM_OPTION_MASK_LAN_PRUNE_DELAY (1 << 1) /* recv lan_prune_delay */ #define PIM_OPTION_MASK_DR_PRIORITY (1 << 2) /* recv dr_priority */ #define PIM_OPTION_MASK_GENERATION_ID (1 << 3) /* recv generation_id */ #define PIM_OPTION_MASK_ADDRESS_LIST (1 << 4) /* recv secondary address list */ #define PIM_OPTION_MASK_CAN_DISABLE_JOIN_SUPPRESSION (1 << 5) /* T bit value (valid if recv lan_prune_delay) */ #define PIM_RPT_BIT_MASK (1 << 0) #define PIM_WILDCARD_BIT_MASK (1 << 1) #define PIM_OPTION_SET(options, option_mask) ((options) |= (option_mask)) #define PIM_OPTION_UNSET(options, option_mask) ((options) &= ~(option_mask)) #define PIM_OPTION_IS_SET(options, option_mask) ((options) & (option_mask)) #define PIM_TLV_GET_UINT16(buf) ntohs(*(const uint16_t *)(buf)) #define PIM_TLV_GET_UINT32(buf) ntohl(*(const uint32_t *)(buf)) #define PIM_TLV_GET_TYPE(buf) PIM_TLV_GET_UINT16(buf) #define PIM_TLV_GET_LENGTH(buf) PIM_TLV_GET_UINT16(buf) #define PIM_TLV_GET_HOLDTIME(buf) PIM_TLV_GET_UINT16(buf) #define PIM_TLV_GET_PROPAGATION_DELAY(buf) (PIM_TLV_GET_UINT16(buf) & 0x7FFF) #define PIM_TLV_GET_OVERRIDE_INTERVAL(buf) PIM_TLV_GET_UINT16(buf) #define PIM_TLV_GET_CAN_DISABLE_JOIN_SUPPRESSION(buf) ((*(const uint8_t *)(buf)) & 0x80) #define PIM_TLV_GET_DR_PRIORITY(buf) PIM_TLV_GET_UINT32(buf) #define PIM_TLV_GET_GENERATION_ID(buf) PIM_TLV_GET_UINT32(buf) #define PIM_TLV_TYPE_SIZE (2) #define PIM_TLV_LENGTH_SIZE (2) #define PIM_TLV_MIN_SIZE (PIM_TLV_TYPE_SIZE + PIM_TLV_LENGTH_SIZE) #define PIM_TLV_OPTION_SIZE(option_len) (PIM_TLV_MIN_SIZE + (option_len)) uint8_t *pim_tlv_append_uint16(uint8_t *buf, const uint8_t *buf_pastend, uint16_t option_type, uint16_t option_value); uint8_t *pim_tlv_append_2uint16(uint8_t *buf, const uint8_t *buf_pastend, uint16_t option_type, uint16_t option_value1, uint16_t option_value2); uint8_t *pim_tlv_append_uint32(uint8_t *buf, const uint8_t *buf_pastend, uint16_t option_type, uint32_t option_value); uint8_t *pim_tlv_append_addrlist_ucast(uint8_t *buf, const uint8_t *buf_pastend, struct list *ifconnected); int pim_tlv_parse_holdtime(const char *ifname, struct in_addr src_addr, pim_hello_options *hello_options, uint16_t *hello_option_holdtime, uint16_t option_len, const uint8_t *tlv_curr); int pim_tlv_parse_lan_prune_delay(const char *ifname, struct in_addr src_addr, pim_hello_options *hello_options, uint16_t *hello_option_propagation_delay, uint16_t *hello_option_override_interval, uint16_t option_len, const uint8_t *tlv_curr); int pim_tlv_parse_dr_priority(const char *ifname, struct in_addr src_addr, pim_hello_options *hello_options, uint32_t *hello_option_dr_priority, uint16_t option_len, const uint8_t *tlv_curr); int pim_tlv_parse_generation_id(const char *ifname, struct in_addr src_addr, pim_hello_options *hello_options, uint32_t *hello_option_generation_id, uint16_t option_len, const uint8_t *tlv_curr); int pim_tlv_parse_addr_list(const char *ifname, struct in_addr src_addr, pim_hello_options *hello_options, struct list **hello_option_addr_list, uint16_t option_len, const uint8_t *tlv_curr); int pim_encode_addr_ucast(uint8_t *buf, struct prefix *p); int pim_encode_addr_group(uint8_t *buf, afi_t afi, int bidir, int scope, struct in_addr group); int pim_parse_addr_ucast(struct prefix *p, const uint8_t *buf, int buf_size); int pim_parse_addr_group(struct prefix_sg *sg, const uint8_t *buf, int buf_size); int pim_parse_addr_source(struct prefix_sg *sg, uint8_t *flags, const uint8_t *buf, int buf_size); #endif /* PIM_TLV_H */