OpenVPN: src/openvpn/mroute.c File Reference

OpenVPN

#include "syshead.h"
#include "mroute.h"
#include "proto.h"
#include "error.h"
#include "socket.h"
#include "memdbg.h"

Include dependency graph for mroute.c:

Go to the source code of this file.

Functions
void	mroute_addr_init (struct mroute_addr *addr)

static bool	is_mac_mcast_addr (const uint8_t *mac)

static bool	is_mac_mcast_maddr (const struct mroute_addr *addr)

bool	mroute_learnable_address (const struct mroute_addr addr, struct gc_arena gc)

static void	mroute_get_in_addr_t (struct mroute_addr *ma, const in_addr_t src, unsigned int mask)

static void	mroute_get_in6_addr (struct mroute_addr *ma, const struct in6_addr src, unsigned int mask)

static bool	mroute_is_mcast (const in_addr_t addr)

static bool	mroute_is_mcast_ipv6 (const struct in6_addr addr)

unsigned int	mroute_extract_addr_ip (struct mroute_addr src, struct mroute_addr dest, const struct buffer *buf)

static void	mroute_copy_ether_to_addr (struct mroute_addr maddr, const uint8_t ether_addr, uint16_t vid)

unsigned int	mroute_extract_addr_ether (struct mroute_addr src, struct mroute_addr dest, uint16_t vid, const struct buffer *buf)

bool	mroute_extract_openvpn_sockaddr (struct mroute_addr addr, const struct openvpn_sockaddr osaddr, bool use_port)

void	mroute_addr_mask_host_bits (struct mroute_addr *ma)

uint32_t	mroute_addr_hash_function (const void *key, uint32_t iv)

bool	mroute_addr_compare_function (const void key1, const void key2)

const char *	mroute_addr_print (const struct mroute_addr ma, struct gc_arena gc)

const char *	mroute_addr_print_ex (const struct mroute_addr ma, const unsigned int flags, struct gc_arena gc)

struct mroute_helper *	mroute_helper_init (int ageable_ttl_secs)

static void	mroute_helper_regenerate (struct mroute_helper *mh)

void	mroute_helper_add_iroute46 (struct mroute_helper *mh, int netbits)

void	mroute_helper_del_iroute46 (struct mroute_helper *mh, int netbits)

void	mroute_helper_free (struct mroute_helper *mh)

Function Documentation

◆ is_mac_mcast_addr()

static bool is_mac_mcast_addr ( const uint8_t * mac )

inlinestatic

Definition at line 49 of file mroute.c.

Referenced by is_mac_mcast_maddr(), and mroute_extract_addr_ether().

◆ is_mac_mcast_maddr()

static bool is_mac_mcast_maddr ( const struct mroute_addr * addr )

inlinestatic

Definition at line 55 of file mroute.c.

References mroute_addr::ether, is_mac_mcast_addr(), MR_ADDR_ETHER, MR_ADDR_MASK, and mroute_addr::type.

Referenced by mroute_learnable_address().

◆ mroute_addr_compare_function()

bool mroute_addr_compare_function	(	const void *	key1,
		const void *	key2
	)

Definition at line 369 of file mroute.c.

References key1, and mroute_addr_equal().

Referenced by multi_init().

◆ mroute_addr_hash_function()

uint32_t mroute_addr_hash_function	(	const void *	key,
		uint32_t	iv
	)

Definition at line 361 of file mroute.c.

References hash_func(), mroute_addr_hash_len(), and mroute_addr_hash_ptr().

Referenced by multi_init().

◆ mroute_addr_init()

void mroute_addr_init ( struct mroute_addr * addr )

Definition at line 39 of file mroute.c.

References CLEAR.

Referenced by multi_create_instance().

◆ mroute_addr_mask_host_bits()

void mroute_addr_mask_host_bits ( struct mroute_addr * ma )

Definition at line 321 of file mroute.c.

References ASSERT, IPV4_NETMASK_HOST, MR_ADDR_IPV4, MR_ADDR_IPV6, MR_ADDR_MASK, mroute_addr::netbits, netbits_to_netmask(), mroute_addr::type, mroute_addr::v4, and mroute_addr::v6.

Referenced by multi_get_instance_by_virtual_addr(), and multi_learn_in6_addr().

◆ mroute_addr_print()

const char* mroute_addr_print	(	const struct mroute_addr *	ma,
		struct gc_arena *	gc
	)

Definition at line 376 of file mroute.c.

References MAPF_IA_EMPTY_IF_UNDEF, and mroute_addr_print_ex().

Referenced by check_stale_routes(), learn_address_script(), mroute_learnable_address(), multi_create_instance(), multi_create_instance_tcp(), multi_get_create_instance_udp(), multi_get_instance_by_virtual_addr(), multi_instance_string(), multi_learn_addr(), multi_print_status(), multi_process_float(), multi_process_incoming_link(), and multi_reap_range().

◆ mroute_addr_print_ex()

const char* mroute_addr_print_ex	(	const struct mroute_addr *	ma,
		const unsigned int	flags,
		struct gc_arena *	gc
	)

Definition at line 383 of file mroute.c.

References alloc_buf_gc(), BSTR, buf_printf(), mroute_addr::ether, format_hex_ex(), IA_EMPTY_IF_UNDEF, IA_NET_ORDER, MAPF_IA_EMPTY_IF_UNDEF, MAPF_SHOW_ARP, MAPF_SUBNET, MR_ADDR_ETHER, MR_ADDR_IPV4, MR_ADDR_IPV6, MR_ADDR_MASK, MR_ARP, MR_WITH_NETBITS, MR_WITH_PORT, mroute_addr::netbits, netbits_to_netmask(), print_in6_addr(), print_in_addr_t(), mroute_addr::type, mroute_addr::v4, mroute_addr::v4mappedv6, and mroute_addr::v6.

Referenced by management_learn_addr(), and mroute_addr_print().

◆ mroute_copy_ether_to_addr()

static void mroute_copy_ether_to_addr	(	struct mroute_addr *	maddr,
		const uint8_t *	ether_addr,
		uint16_t	vid
	)

static

Definition at line 216 of file mroute.c.

References mroute_addr::ether, mroute_addr::len, MR_ADDR_ETHER, mroute_addr::netbits, OPENVPN_ETH_ALEN, and mroute_addr::type.

Referenced by mroute_extract_addr_ether().

◆ mroute_extract_addr_ether()

unsigned int mroute_extract_addr_ether	(	struct mroute_addr *	src,
		struct mroute_addr *	dest,
		uint16_t	vid,
		const struct buffer *	buf
	)

Definition at line 229 of file mroute.c.

References BLEN, BPTR, openvpn_ethhdr::dest, is_mac_mcast_addr(), mroute_copy_ether_to_addr(), MROUTE_EXTRACT_BCAST, MROUTE_EXTRACT_SUCCEEDED, and openvpn_ethhdr::source.

Referenced by mroute_extract_addr_from_packet().

◆ mroute_extract_addr_ip()

unsigned int mroute_extract_addr_ip	(	struct mroute_addr *	src,
		struct mroute_addr *	dest,
		const struct buffer *	buf
	)

Definition at line 151 of file mroute.c.

References BLEN, BPTR, openvpn_iphdr::daddr, openvpn_ipv6hdr::daddr, gc_free(), gc_new(), M_INFO, M_WARN, MROUTE_EXTRACT_IGMP, MROUTE_EXTRACT_MCAST, MROUTE_EXTRACT_SUCCEEDED, mroute_get_in6_addr(), mroute_get_in_addr_t(), mroute_is_mcast(), mroute_is_mcast_ipv6(), msg, OPENVPN_IPH_GET_VER, OPENVPN_IPPROTO_IGMP, print_in6_addr(), openvpn_iphdr::protocol, openvpn_iphdr::saddr, and openvpn_ipv6hdr::saddr.

Referenced by mroute_extract_addr_from_packet().

◆ mroute_extract_openvpn_sockaddr()

bool mroute_extract_openvpn_sockaddr	(	struct mroute_addr *	addr,
		const struct openvpn_sockaddr *	osaddr,
		bool	use_port
	)

Definition at line 264 of file mroute.c.

References openvpn_sockaddr::addr, openvpn_sockaddr::in4, openvpn_sockaddr::in6, mroute_addr::len, MR_ADDR_IPV4, MR_ADDR_IPV6, MR_WITH_PORT, mroute_addr::netbits, openvpn_sockaddr::sa, mroute_addr::type, mroute_addr::v4, and mroute_addr::v6.

Referenced by management_callback_kill_by_addr(), multi_get_create_instance_udp(), multi_learn_in_addr_t(), multi_process_float(), and multi_tcp_instance_specific_init().

◆ mroute_get_in6_addr()

static void mroute_get_in6_addr	(	struct mroute_addr *	ma,
		const struct in6_addr	src,
		unsigned int	mask
	)

inlinestatic

Definition at line 123 of file mroute.c.

References mroute_addr::len, MR_ADDR_IPV6, mroute_addr::netbits, mroute_addr::type, and mroute_addr::v6.

Referenced by mroute_extract_addr_ip().

◆ mroute_get_in_addr_t()

static void mroute_get_in_addr_t	(	struct mroute_addr *	ma,
		const in_addr_t	src,
		unsigned int	mask
	)

inlinestatic

Definition at line 111 of file mroute.c.

References mroute_addr::len, MR_ADDR_IPV4, mroute_addr::netbits, mroute_addr::type, and mroute_addr::v4.

Referenced by mroute_extract_addr_ip().

◆ mroute_helper_add_iroute46()

void mroute_helper_add_iroute46	(	struct mroute_helper *	mh,
		int	netbits
	)

Definition at line 509 of file mroute.c.

References ASSERT, mroute_helper::cache_generation, MR_HELPER_NET_LEN, mroute_helper_regenerate(), and mroute_helper::net_len_refcount.

Referenced by multi_add_iroutes().

◆ mroute_helper_del_iroute46()

void mroute_helper_del_iroute46	(	struct mroute_helper *	mh,
		int	netbits
	)

Definition at line 524 of file mroute.c.

References ASSERT, mroute_helper::cache_generation, MR_HELPER_NET_LEN, mroute_helper_regenerate(), and mroute_helper::net_len_refcount.

Referenced by multi_del_iroutes().

◆ mroute_helper_free()

void mroute_helper_free ( struct mroute_helper * mh )

Definition at line 540 of file mroute.c.

Referenced by multi_uninit().

◆ mroute_helper_init()

struct mroute_helper* mroute_helper_init ( int ageable_ttl_secs )

Definition at line 471 of file mroute.c.

References mroute_helper::ageable_ttl_secs, and ALLOC_OBJ_CLEAR.

Referenced by multi_init().

◆ mroute_helper_regenerate()

static void mroute_helper_regenerate ( struct mroute_helper * mh )

static

Definition at line 480 of file mroute.c.

References alloc_buf_gc(), BSTR, buf_printf(), check_debug_level(), D_MULTI_DEBUG, dmsg, gc_free(), gc_new(), MR_HELPER_NET_LEN, mroute_helper::n_net_len, mroute_helper::net_len, and mroute_helper::net_len_refcount.

Referenced by mroute_helper_add_iroute46(), and mroute_helper_del_iroute46().

◆ mroute_is_mcast()

static bool mroute_is_mcast ( const in_addr_t addr )

inlinestatic

Definition at line 135 of file mroute.c.

References IP_MCAST_NETWORK, and IP_MCAST_SUBNET_MASK.

Referenced by mroute_extract_addr_ip().

◆ mroute_is_mcast_ipv6()

static bool mroute_is_mcast_ipv6 ( const struct in6_addr addr )

inlinestatic

Definition at line 144 of file mroute.c.

Referenced by mroute_extract_addr_ip().

◆ mroute_learnable_address()

bool mroute_learnable_address	(	const struct mroute_addr *	addr,
		struct gc_arena *	gc
	)

Definition at line 65 of file mroute.c.

References D_MULTI_LOW, is_mac_mcast_maddr(), mroute_addr::len, MR_WITH_NETBITS, mroute_addr_print(), msg, mroute_addr::netbits, mroute_addr::raw_addr, and mroute_addr::type.

Referenced by multi_learn_addr().