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Data Structures
struct	ForwardRoute

struct	stru_NetSim_IPRoutingTable
	Structure to store ip routing table. More...

struct	stru_IP_DevVar
	Structure to store the device ip details. More...

struct	stru_IP_Metrics
	Structure to store the IP metrics. More...

struct	stru_dnsList
	Data structure for dns. More...

Macros
#define	IP_IGMP_STATUS_DEFAULT false

#define	IP_PIM_STATUS_DEFAULT false

#define	IP_ICMP_STATUS_DEFAULT false

#define	IP_STATIC_IP_ROUTE_DEFAULT _strdup("")

#define	IP_PROCESSING_DELAY_DEFAULT 0

#define	on_link NULL

#define	DEFAULT_METRIC 999

#define	ONLINK_METRIC 300

#define	MULTICAST_METRIC 306

#define	IPV4_HEADER_SIZE 20

#define	PROTOCOL_VPN 1

#define	VPN_METRIC 200

#define	GET_IP_DEVVAR(d) (DEVICE_NWLAYER(d)?(IP_DEVVAR*)(DEVICE_NWLAYER(d)->ipVar):NULL)

#define	isPIMPacket(packet) (packet->pstruNetworkData->IPProtocol == IPPROTOCOL_PIM)

#define	DNS_ALLOC() (struct stru_dnsList*)list_alloc(sizeof(struct stru_dnsList),offsetof(struct stru_dnsList,ele))

#define	IPROUTINGTABLE_ALLOC() (ptrIP_ROUTINGTABLE)list_alloc(sizeof(IP_ROUTINGTABLE),offsetof(IP_ROUTINGTABLE,ele))

#define	IPROUTINGTABLE_ADD(table, current, fun) list_add(((void**)(table)),current,offsetof(IP_ROUTINGTABLE,ele),fun)

Typedefs
typedef struct stru_IP_DevVar	IP_DEVVAR

typedef struct ForwardRoute	IP_FORWARD_ROUTE

typedef struct ForwardRoute *	ptrIP_FORWARD_ROUTE

typedef struct stru_NetSim_IPRoutingTable	IP_ROUTINGTABLE
	Structure to store ip routing table. More...

typedef struct stru_NetSim_IPRoutingTable *	ptrIP_ROUTINGTABLE

typedef struct stru_NetSim_IPRoutingTable **	pptrIP_ROUTINGTABLE

typedef struct stru_dnsList	DNS
	Data structure for dns. More...

Enumerations
enum	ROUTING_TYPE { RoutingType_string , RoutingType_DEFAULT =1 , RoutingType_STATIC }
	Enumeration for routing types. More...

enum	IP_CONTROL_PACKET { PACKET_ICMP_DstUnreachableMsg =NW_PROTOCOL_IPV4100+10 , PACKET_ICMP_ECHORequest , PACKET_ICMP_ECHOReply , PACKET_ROUTER_ADVERTISEMENT , PACKET_VPN = NW_PROTOCOL_IPV4100+20 , PACKET_IGMP_QUERY = NW_PROTOCOL_IPV4100+30 , PACKET_IGMP_REPORT , PACKET_IGMP_LEAVE , PACKET_PIM_HELLO = NW_PROTOCOL_IPV4100+40 , PACKET_PIM_REGISTER , PACKET_PIM_REGISTERSTOP , PACKET_PIM_JOINPRUNE , PACKET_PIM_BOOTSTRAP , PACKET_PIM_ASSERT , PACKET_PIM_GRAFT , PACKET_PIM_GRAFTACK , PACKET_PIM_CANDRPADVER }
	Enumeration for IP control packets. More...

enum	IP_SUBEVENT { EVENT_ICMP_POLL =NW_PROTOCOL_IPV4*100+1 , EVENT_ADVERTISE_ROUTER , EVENT_IGMP_Unsolicited_report , EVENT_IGMP_SendStartupQuery , EVENT_IGMP_SendQuery , EVENT_IGMP_OtherQuerierPresentTimer , EVENT_IGMP_DelayTimer , EVENT_IGMP_GroupMembershipTimer , EVENT_PIM_SEND_HELLO , EVENT_PIM_NEIGHBOR_TIMEOUT , EVENT_PIM_JT , EVENT_PIM_ET , EVENT_IP_INIT_TABLE , EVENT_ICMP_SEND_ECHO , EVENT_IP_PROCESSING_DELAY }
	Enumeration for ip sub-events. More...

enum	IP_GATEWAYSTATE { GATEWAYSTATE_UP , GATEWAYSTATE_DOWN , GATEWAYSTATE_NOTIFICATION_PENDING , GATEWAYSTATE_CLEARANCE_PENDING }
	Enumeration for IP gateway states. More...

enum	VPN_STATE { VPN_DISABLE =0 , VPN_SERVER , VPN_CLIENT }
	Enumeration for VPN states. More...

enum	IP_PROTOCOL_ACTION { ACTION_DROP , ACTION_MOVEUP , ACTION_REROUTE }

Functions
void	free_ip_route (ptrIP_FORWARD_ROUTE route)

int	iptable_add_check (ptrIP_ROUTINGTABLE current, ptrIP_ROUTINGTABLE mem)

ptrIP_ROUTINGTABLE	iptable_check (ptrIP_ROUTINGTABLE *table, NETSIM_IPAddress dest, NETSIM_IPAddress subnet)

int	iptable_change (ptrIP_WRAPPER wrapper, NETSIM_IPAddress dest, NETSIM_IPAddress subnet, UINT prefix_len, NETSIM_IPAddress gateway, UINT interfaceCount, NETSIM_IPAddress interfaceIp, NETSIM_ID interfaceId, unsigned int metric)

int	iptable_change_byRoute (ptrIP_WRAPPER wrapper, ptrIP_ROUTINGTABLE route, NETSIM_IPAddress subnet, unsigned int prefix_len, NETSIM_IPAddress gateway, UINT interfaceCount, NETSIM_IPAddress interfaceIp, NETSIM_ID interfaceId, unsigned int metric)

int	iptable_delete (ptrIP_WRAPPER wrapper, NETSIM_IPAddress dest, NETSIM_IPAddress in, char *type)

int	iptable_delete_by_type (ptrIP_WRAPPER wrapper, char *type)

int	iptable_delete_by_route (ptrIP_WRAPPER wrapper, ptrIP_ROUTINGTABLE route)

ptrIP_ROUTINGTABLE	iptable_add (ptrIP_WRAPPER wrapper, NETSIM_IPAddress dest, NETSIM_IPAddress subnet, unsigned int prefix_len, NETSIM_IPAddress gateway, UINT interfaceCount, NETSIM_IPAddress interfaceIp, NETSIM_ID interfaceId, unsigned int metric, char *type)

int	iptable_print (FILE *fp, ptrIP_ROUTINGTABLE routeTable)

ptrIP_ROUTINGTABLE *	iptable_get_table_by_type (ptrIP_ROUTINGTABLE table, char type, UINT count)

NETSIM_IPAddress	dns_query (NETSIM_ID nDeviceId, NETSIM_ID id)

int	fn_NetSim_IP_VPN_Run ()

ptrIP_FORWARD_ROUTE	fn_NetSim_IP_RoutePacket (NetSim_PACKET *packet, NETSIM_ID dev)

ptrIP_FORWARD_ROUTE	fn_NetSim_IP_RoutePacketViaStaticEntry (NetSim_PACKET *packet, NETSIM_ID dev)

void	pass_to_lower_layer (NetSim_PACKET *packet, ptrIP_FORWARD_ROUTE route, UINT c)

int	fn_NetSim_NAT_NetworkOut (NETSIM_ID ndev, NetSim_PACKET *packet)

int	fn_NetSim_NAT_NetworkIn (NETSIM_ID ndev, NetSim_PACKET *packet)

void	ICMP_copyPacket (NetSim_PACKET d, NetSim_PACKET s)

void	process_icmp_packet ()

int	ICMP_CHECKSTATE (NETSIM_IPAddress ip)

void	multicast_join_group ()

IP_PROTOCOL_ACTION	check_ip_in_multicastgroup (NETSIM_IPAddress ip, NETSIM_ID d, NetSim_PACKET *packet)

bool	is_reserved_multicast_address (NETSIM_IPAddress ip)

bool	isCorrectRoute (pptrIP_ROUTINGTABLE table, NETSIM_IPAddress dest, NETSIM_IPAddress src)

void	igmp_configure (NETSIM_ID d, void *xmlNode)

void	igmp_init (NETSIM_ID d)

void	igmp_host_join_group (NETSIM_ID d, NETSIM_IPAddress group)

void	host_handle_unsolicited_report_timer ()

void	process_igmp_packet ()

void	IGMP_FreePacket (NetSim_PACKET *packet)

IP_PROTOCOL_ACTION	host_is_ip_present_in_db (NETSIM_ID d, NETSIM_IPAddress ip, NetSim_PACKET *packet)

IP_PROTOCOL_ACTION	router_is_ip_present_in_db (NETSIM_ID d, NETSIM_IPAddress ip, NetSim_PACKET *packet)

void	send_query_msg (NETSIM_ID d, NETSIM_IPAddress groupAddr, double time)

void	igmp_router_processOtherQuerierPresentTime ()

void	host_send_report ()

void	igmp_router_ProcessGroupMembershipTimer ()

void	copy_igmp_packet (NetSim_PACKET d, NetSim_PACKET s)

void	igmp_free (NETSIM_ID d)

void	pim_configure (NETSIM_ID d, void *xmlNetSimNode)

void	Router_PIM_Init (NETSIM_ID d)

void	pim_handle_timer_event ()

void	pim_join_group (NETSIM_ID d, NETSIM_IPAddress group)

IP_PROTOCOL_ACTION	pim_decide_action (NetSim_PACKET *packet, NETSIM_ID d)

void	process_pim_packet ()

void	ip_write_to_pcap (NetSim_PACKET *packet, NETSIM_ID d, NETSIM_ID i, double time)

void *	ICMP_StartPingRequest (NETSIM_ID src, NETSIM_ID dest, UINT count, bool(resp)(void , char , bool), void arg)

void	icmp_send_echo_request ()

Variables
struct stru_IP_Metrics **	ipMetrics

Macro Definition Documentation

◆ DEFAULT_METRIC

#define DEFAULT_METRIC 999

Definition at line 42 of file IP.h.

◆ DNS_ALLOC

#define DNS_ALLOC ( ) (struct stru_dnsList*)list_alloc(sizeof(struct stru_dnsList),offsetof(struct stru_dnsList,ele))

Definition at line 299 of file IP.h.

◆ GET_IP_DEVVAR

#define GET_IP_DEVVAR ( d ) (DEVICE_NWLAYER(d)?(IP_DEVVAR*)(DEVICE_NWLAYER(d)->ipVar):NULL)

Definition at line 49 of file IP.h.

◆ IP_ICMP_STATUS_DEFAULT

#define IP_ICMP_STATUS_DEFAULT false

Definition at line 37 of file IP.h.

◆ IP_IGMP_STATUS_DEFAULT

#define IP_IGMP_STATUS_DEFAULT false

Definition at line 35 of file IP.h.

◆ IP_PIM_STATUS_DEFAULT

#define IP_PIM_STATUS_DEFAULT false

Definition at line 36 of file IP.h.

◆ IP_PROCESSING_DELAY_DEFAULT

#define IP_PROCESSING_DELAY_DEFAULT 0

Definition at line 39 of file IP.h.

◆ IP_STATIC_IP_ROUTE_DEFAULT

#define IP_STATIC_IP_ROUTE_DEFAULT _strdup("")

Definition at line 38 of file IP.h.

◆ IPROUTINGTABLE_ADD

#define IPROUTINGTABLE_ADD	(	table,
		current,
		fun
	)	list_add(((void**)(table)),current,offsetof(IP_ROUTINGTABLE,ele),fun)

Definition at line 302 of file IP.h.

◆ IPROUTINGTABLE_ALLOC

#define IPROUTINGTABLE_ALLOC ( ) (ptrIP_ROUTINGTABLE)list_alloc(sizeof(IP_ROUTINGTABLE),offsetof(IP_ROUTINGTABLE,ele))

Definition at line 301 of file IP.h.

◆ IPV4_HEADER_SIZE

#define IPV4_HEADER_SIZE 20

Definition at line 45 of file IP.h.

◆ isPIMPacket

#define isPIMPacket ( packet ) (packet->pstruNetworkData->IPProtocol == IPPROTOCOL_PIM)

Definition at line 88 of file IP.h.

◆ MULTICAST_METRIC

#define MULTICAST_METRIC 306

Definition at line 44 of file IP.h.

◆ on_link

#define on_link NULL

Definition at line 41 of file IP.h.

◆ ONLINK_METRIC

#define ONLINK_METRIC 300

Definition at line 43 of file IP.h.

◆ PROTOCOL_VPN

#define PROTOCOL_VPN 1

Definition at line 46 of file IP.h.

◆ VPN_METRIC

#define VPN_METRIC 200

Definition at line 47 of file IP.h.

Typedef Documentation

◆ DNS

typedef struct stru_dnsList DNS

Data structure for dns.

◆ IP_DEVVAR

typedef struct stru_IP_DevVar IP_DEVVAR

Definition at line 51 of file IP.h.

◆ IP_FORWARD_ROUTE

typedef struct ForwardRoute IP_FORWARD_ROUTE

◆ IP_ROUTINGTABLE

typedef struct stru_NetSim_IPRoutingTable IP_ROUTINGTABLE

Structure to store ip routing table.

◆ pptrIP_ROUTINGTABLE

typedef struct stru_NetSim_IPRoutingTable** pptrIP_ROUTINGTABLE

◆ ptrIP_FORWARD_ROUTE

typedef struct ForwardRoute* ptrIP_FORWARD_ROUTE

◆ ptrIP_ROUTINGTABLE

typedef struct stru_NetSim_IPRoutingTable * ptrIP_ROUTINGTABLE

Enumeration Type Documentation

◆ IP_CONTROL_PACKET

enum IP_CONTROL_PACKET

Enumeration for IP control packets.

Enumerator
PACKET_ICMP_DstUnreachableMsg
PACKET_ICMP_ECHORequest
PACKET_ICMP_ECHOReply
PACKET_ROUTER_ADVERTISEMENT
PACKET_VPN
PACKET_IGMP_QUERY
PACKET_IGMP_REPORT
PACKET_IGMP_LEAVE
PACKET_PIM_HELLO
PACKET_PIM_REGISTER
PACKET_PIM_REGISTERSTOP
PACKET_PIM_JOINPRUNE
PACKET_PIM_BOOTSTRAP
PACKET_PIM_ASSERT
PACKET_PIM_GRAFT
PACKET_PIM_GRAFTACK
PACKET_PIM_CANDRPADVER

Definition at line 61 of file IP.h.

◆ IP_GATEWAYSTATE

enum IP_GATEWAYSTATE

Enumeration for IP gateway states.

Enumerator
GATEWAYSTATE_UP
GATEWAYSTATE_DOWN
GATEWAYSTATE_NOTIFICATION_PENDING
GATEWAYSTATE_CLEARANCE_PENDING

Definition at line 122 of file IP.h.

◆ IP_PROTOCOL_ACTION

enum IP_PROTOCOL_ACTION

Enumerator
ACTION_DROP
ACTION_MOVEUP
ACTION_REROUTE

Definition at line 137 of file IP.h.

◆ IP_SUBEVENT

enum IP_SUBEVENT

Enumeration for ip sub-events.

Enumerator
EVENT_ICMP_POLL
EVENT_ADVERTISE_ROUTER
EVENT_IGMP_Unsolicited_report
EVENT_IGMP_SendStartupQuery
EVENT_IGMP_SendQuery
EVENT_IGMP_OtherQuerierPresentTimer
EVENT_IGMP_DelayTimer
EVENT_IGMP_GroupMembershipTimer
EVENT_PIM_SEND_HELLO
EVENT_PIM_NEIGHBOR_TIMEOUT
EVENT_PIM_JT
EVENT_PIM_ET
EVENT_IP_INIT_TABLE
EVENT_ICMP_SEND_ECHO
EVENT_IP_PROCESSING_DELAY

Definition at line 91 of file IP.h.

◆ ROUTING_TYPE

enum ROUTING_TYPE

Enumeration for routing types.

Enumerator
RoutingType_string
RoutingType_DEFAULT
RoutingType_STATIC

Definition at line 53 of file IP.h.

◆ VPN_STATE

enum VPN_STATE

Enumeration for VPN states.

Enumerator
VPN_DISABLE
VPN_SERVER
VPN_CLIENT

Definition at line 130 of file IP.h.

Function Documentation

◆ check_ip_in_multicastgroup()

IP_PROTOCOL_ACTION check_ip_in_multicastgroup	(	NETSIM_IPAddress	ip,
		NETSIM_ID	d,
		NetSim_PACKET *	packet
	)

Definition at line 60 of file Component 3/IP/Multicast.c.

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◆ copy_igmp_packet()

void copy_igmp_packet	(	NetSim_PACKET *	d,
		NetSim_PACKET *	s
	)

Definition at line 77 of file IGMP_Msg.c.

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◆ dns_query()

NETSIM_IPAddress dns_query	(	NETSIM_ID	nDeviceId,
		NETSIM_ID	id
	)

The DOMAIN NAME SPACE and RESOURCE RECORDS, which are specifications for a tree structured name space and data associated with the names. Conceptually, each node and leaf of the domain name space tree names a set of information, and query operations are attempts to extract specific types of information from a particular set. A query names the domain name of interest and describes the type of resource information that is desired. For example, the Internet uses some of its domain names to identify hosts; queries for address resources return Internet host addresses.

Definition at line 42 of file DNS.c.

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◆ fn_NetSim_IP_RoutePacket()

ptrIP_FORWARD_ROUTE fn_NetSim_IP_RoutePacket	(	NetSim_PACKET *	packet,
		NETSIM_ID	dev
	)

Definition at line 371 of file IP_Routing.c.

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◆ fn_NetSim_IP_RoutePacketViaStaticEntry()

ptrIP_FORWARD_ROUTE fn_NetSim_IP_RoutePacketViaStaticEntry	(	NetSim_PACKET *	packet,
		NETSIM_ID	dev
	)

Definition at line 558 of file IP_Routing.c.

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◆ fn_NetSim_IP_VPN_Run()

int fn_NetSim_IP_VPN_Run ( )

This function is to trigger the events of VPN, which includes NETWORK_OUT and NETWORK_IN events.

Definition at line 212 of file VPN.c.

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◆ fn_NetSim_NAT_NetworkIn()

int fn_NetSim_NAT_NetworkIn	(	NETSIM_ID	ndev,
		NetSim_PACKET *	packet
	)

Definition at line 116 of file NAT.c.

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◆ fn_NetSim_NAT_NetworkOut()

int fn_NetSim_NAT_NetworkOut	(	NETSIM_ID	ndev,
		NetSim_PACKET *	packet
	)

Definition at line 47 of file NAT.c.

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◆ free_ip_route()

void free_ip_route ( ptrIP_FORWARD_ROUTE route )

Definition at line 157 of file IP_Routing.c.

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◆ host_handle_unsolicited_report_timer()

void host_handle_unsolicited_report_timer ( )

Definition at line 183 of file IGMP_Host.c.

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◆ host_is_ip_present_in_db()

IP_PROTOCOL_ACTION host_is_ip_present_in_db	(	NETSIM_ID	d,
		NETSIM_IPAddress	ip,
		NetSim_PACKET *	packet
	)

Definition at line 69 of file IGMP_Host.c.

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◆ host_send_report()

void host_send_report ( )

Definition at line 119 of file IGMP_Host.c.

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◆ ICMP_CHECKSTATE()

int ICMP_CHECKSTATE ( NETSIM_IPAddress ip )

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◆ ICMP_copyPacket()

void ICMP_copyPacket	(	NetSim_PACKET *	d,
		NetSim_PACKET *	s
	)

Definition at line 518 of file ICMP.c.

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◆ icmp_send_echo_request()

void icmp_send_echo_request ( )

Definition at line 668 of file ICMP.c.

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◆ ICMP_StartPingRequest()

void * ICMP_StartPingRequest	(	NETSIM_ID	src,
		NETSIM_ID	dest,
		UINT	count,
		bool()(void , char *, bool)	resp,
		void *	arg
	)

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◆ igmp_configure()

void igmp_configure	(	NETSIM_ID	d,
		void *	xmlNode
	)

Definition at line 43 of file IGMP.c.

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◆ igmp_free()

void igmp_free ( NETSIM_ID d )

Definition at line 164 of file IGMP.c.

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◆ IGMP_FreePacket()

void IGMP_FreePacket ( NetSim_PACKET * packet )

Definition at line 81 of file IGMP_Msg.c.

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◆ igmp_host_join_group()

void igmp_host_join_group	(	NETSIM_ID	d,
		NETSIM_IPAddress	group
	)

Definition at line 159 of file IGMP_Host.c.

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◆ igmp_init()

void igmp_init ( NETSIM_ID d )

Definition at line 141 of file IGMP.c.

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◆ igmp_router_ProcessGroupMembershipTimer()

void igmp_router_ProcessGroupMembershipTimer ( )

Definition at line 307 of file IGMP_Router.c.

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◆ igmp_router_processOtherQuerierPresentTime()

void igmp_router_processOtherQuerierPresentTime ( )

Definition at line 239 of file IGMP_Router.c.

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◆ ip_write_to_pcap()

void ip_write_to_pcap	(	NetSim_PACKET *	packet,
		NETSIM_ID	d,
		NETSIM_ID	i,
		double	time
	)

Definition at line 1476 of file IP.c.

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◆ iptable_add()

ptrIP_ROUTINGTABLE iptable_add	(	ptrIP_WRAPPER	wrapper,
		NETSIM_IPAddress	dest,
		NETSIM_IPAddress	subnet,
		unsigned int	prefix_len,
		NETSIM_IPAddress	gateway,
		UINT	interfaceCount,
		NETSIM_IPAddress *	interfaceIp,
		NETSIM_ID *	interfaceId,
		unsigned int	metric,
		char *	type
	)

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◆ iptable_add_check()

int iptable_add_check	(	ptrIP_ROUTINGTABLE	current,
		ptrIP_ROUTINGTABLE	mem
	)

◆ iptable_change()

int iptable_change	(	ptrIP_WRAPPER	wrapper,
		NETSIM_IPAddress	dest,
		NETSIM_IPAddress	subnet,
		UINT	prefix_len,
		NETSIM_IPAddress	gateway,
		UINT	interfaceCount,
		NETSIM_IPAddress *	interfaceIp,
		NETSIM_ID *	interfaceId,
		unsigned int	metric
	)

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◆ iptable_change_byRoute()

int iptable_change_byRoute	(	ptrIP_WRAPPER	wrapper,
		ptrIP_ROUTINGTABLE	route,
		NETSIM_IPAddress	subnet,
		unsigned int	prefix_len,
		NETSIM_IPAddress	gateway,
		UINT	interfaceCount,
		NETSIM_IPAddress *	interfaceIp,
		NETSIM_ID *	interfaceId,
		unsigned int	metric
	)