Free (GPLv2) TCP/IP stack developed by TASS Belgium
Fork of PicoTCP by
modules/pico_ipv4.h
- Committer:
- daniele
- Date:
- 2013-05-24
- Revision:
- 3:b4047e8a0123
File content as of revision 3:b4047e8a0123:
/********************************************************************* PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved. See LICENSE and COPYING for usage. . *********************************************************************/ #ifndef _INCLUDE_PICO_IPV4 #define _INCLUDE_PICO_IPV4 #include "pico_addressing.h" #include "pico_protocol.h" #include "pico_tree.h" #define PICO_IPV4_INADDR_ANY 0x00000000U #define PICO_SIZE_IP4HDR ((sizeof(struct pico_ipv4_hdr))) #define PICO_IPV4_DONTFRAG 0x4000 #define PICO_IPV4_MOREFRAG 0x2000 #define PICO_IPV4_FRAG_MASK 0x1FFF #define PICO_IPV4_DEFAULT_TTL 64 extern struct pico_protocol pico_proto_ipv4; struct __attribute__((packed)) pico_ipv4_hdr { uint8_t vhl; uint8_t tos; uint16_t len; uint16_t id; uint16_t frag; uint8_t ttl; uint8_t proto; uint16_t crc; struct pico_ip4 src; struct pico_ip4 dst; uint8_t options[0]; }; struct __attribute__((packed)) pico_ipv4_pseudo_hdr { struct pico_ip4 src; struct pico_ip4 dst; uint8_t zeros; uint8_t proto; uint16_t len; }; /* Interface: link to device */ struct pico_mcast_list; struct pico_ipv4_link { struct pico_device *dev; struct pico_ip4 address; struct pico_ip4 netmask; #ifdef PICO_SUPPORT_MCAST struct pico_tree *MCASTGroups; uint8_t mcast_router_version; #endif }; #ifdef PICO_SUPPORT_MCAST struct pico_mcast_group { uint8_t filter_mode; uint16_t reference_count; struct pico_ip4 mcast_addr; struct pico_tree MCASTSources; }; #endif int pico_ipv4_to_string(char *ipbuf, const uint32_t ip); int pico_string_to_ipv4(const char *ipstr, uint32_t *ip); int pico_ipv4_valid_netmask(uint32_t mask); int pico_ipv4_is_unicast(uint32_t address); int pico_ipv4_is_multicast(uint32_t address); int pico_ipv4_is_broadcast(uint32_t addr); int pico_ipv4_link_add(struct pico_device *dev, struct pico_ip4 address, struct pico_ip4 netmask); int pico_ipv4_link_del(struct pico_device *dev, struct pico_ip4 address); int pico_ipv4_rebound(struct pico_frame *f); int pico_ipv4_frame_push(struct pico_frame *f, struct pico_ip4 *dst, uint8_t proto); struct pico_ipv4_link *pico_ipv4_link_get(struct pico_ip4 *address); struct pico_device *pico_ipv4_link_find(struct pico_ip4 *address); struct pico_ip4 *pico_ipv4_source_find(struct pico_ip4 *dst); int pico_ipv4_route_add(struct pico_ip4 address, struct pico_ip4 netmask, struct pico_ip4 gateway, int metric, struct pico_ipv4_link *link); int pico_ipv4_route_del(struct pico_ip4 address, struct pico_ip4 netmask, struct pico_ip4 gateway, int metric, struct pico_ipv4_link *link); struct pico_ip4 pico_ipv4_route_get_gateway(struct pico_ip4 *addr); void pico_ipv4_unreachable(struct pico_frame *f, int err); int pico_ipv4_mcast_join(struct pico_ip4 *mcast_link, struct pico_ip4 *mcast_group, uint8_t reference_count, uint8_t filter_mode, struct pico_tree *MCASTFilter); int pico_ipv4_mcast_leave(struct pico_ip4 *mcast_link, struct pico_ip4 *mcast_group, uint8_t reference_count, uint8_t filter_mode, struct pico_tree *MCASTFilter); struct pico_ipv4_link *pico_ipv4_get_default_mcastlink(void); #endif /* _INCLUDE_PICO_IPV4 */