libhd 5.0
Data Structures | Macros | Typedefs | Functions
PPPoE devices (DSL)
Implementation internals » Device handling

PPPoE devices scan functions. More...

Data Structures

struct  PPPoEPacketStruct
struct  PPPoETagStruct
struct  PPPoEConnectionStruct
struct  PacketCriteriaStruct

Macros

#define ETH_PPPOE_DISCOVERY   0x8863
#define ETH_PPPOE_SESSION   0x8864
#define CODE_PADI   0x09
#define CODE_PADO   0x07
#define CODE_PADR   0x19
#define CODE_PADS   0x65
#define CODE_PADT   0xA7
#define TAG_END_OF_LIST   0x0000
#define TAG_SERVICE_NAME   0x0101
#define TAG_AC_NAME   0x0102
#define TAG_HOST_UNIQ   0x0103
#define TAG_AC_COOKIE   0x0104
#define TAG_VENDOR_SPECIFIC   0x0105
#define TAG_RELAY_SESSION_ID   0x0110
#define TAG_SERVICE_NAME_ERROR   0x0201
#define TAG_AC_SYSTEM_ERROR   0x0202
#define TAG_GENERIC_ERROR   0x0203
#define MAX_ATTEMPTS   2
#define PADO_TIMEOUT   3
#define PPPOE_OVERHEAD   6 /* type, code, session, length */
#define HDR_SIZE   (sizeof (struct ethhdr) + PPPOE_OVERHEAD)
#define MAX_PPPOE_PAYLOAD   (ETH_DATA_LEN - PPPOE_OVERHEAD)
#define TAG_HDR_SIZE   4
#define NOT_UNICAST(e)

Typedefs

typedef struct PPPoEPacketStruct PPPoEPacket
typedef struct PPPoETagStruct PPPoETag
typedef void parse_func(uint16_t type, uint16_t len, unsigned char *data, void *extra)
typedef struct PPPoEConnectionStruct PPPoEConnection
typedef struct PacketCriteriaStruct PacketCriteria

Functions

static int check_room (PPPoEConnection *conn, unsigned char *cursor, unsigned char *start, uint16_t len)
static int parse_packet (PPPoEConnection *conn, PPPoEPacket *packet, parse_func *func, void *extra)
static int open_interfaces (int n, PPPoEConnection *conns)
static void close_intefaces (int n, PPPoEConnection *conns)
static int send_packet (int fd, PPPoEPacket *pkt, size_t size)
static int receive_packet (int fd, PPPoEPacket *pkt, size_t *size)
static void parse_hostuniq (uint16_t type, uint16_t len, unsigned char *data, void *extra)
static int packet_for_me (PPPoEConnection *conn, PPPoEPacket *packet)
static void parse_pado_tags (uint16_t type, uint16_t len, unsigned char *data, void *extra)
static int send_padi (int n, PPPoEConnection *conns)
static int wait_for_pado (int n, PPPoEConnection *conns)
static void discovery (int n, PPPoEConnection *conns)
void hd_scan_pppoe (hd_data_t *hd_data2)

Detailed Description

PPPoE devices scan functions.

Macro Definition Documentation

◆ CODE_PADI

#define CODE_PADI   0x09

Referenced by send_padi().

◆ CODE_PADO

#define CODE_PADO   0x07

Referenced by wait_for_pado().

◆ CODE_PADR

#define CODE_PADR   0x19

◆ CODE_PADS

#define CODE_PADS   0x65

◆ CODE_PADT

#define CODE_PADT   0xA7

◆ ETH_PPPOE_DISCOVERY

#define ETH_PPPOE_DISCOVERY   0x8863

Referenced by open_interfaces(), and send_padi().

◆ ETH_PPPOE_SESSION

#define ETH_PPPOE_SESSION   0x8864

◆ HDR_SIZE

#define HDR_SIZE   (sizeof (struct ethhdr) + PPPOE_OVERHEAD)

Referenced by send_padi(), and wait_for_pado().

◆ MAX_ATTEMPTS

#define MAX_ATTEMPTS   2

Referenced by discovery().

◆ MAX_PPPOE_PAYLOAD

#define MAX_PPPOE_PAYLOAD   (ETH_DATA_LEN - PPPOE_OVERHEAD)

Referenced by check_room().

◆ NOT_UNICAST

#define NOT_UNICAST ( e)
Value:
((e[0] & 0x01) != 0)

Referenced by open_interfaces(), and wait_for_pado().

◆ PADO_TIMEOUT

#define PADO_TIMEOUT   3

Referenced by wait_for_pado().

◆ PPPOE_OVERHEAD

#define PPPOE_OVERHEAD   6 /* type, code, session, length */

◆ TAG_AC_COOKIE

#define TAG_AC_COOKIE   0x0104

◆ TAG_AC_NAME

#define TAG_AC_NAME   0x0102

Referenced by parse_pado_tags().

◆ TAG_AC_SYSTEM_ERROR

#define TAG_AC_SYSTEM_ERROR   0x0202

Referenced by parse_pado_tags().

◆ TAG_END_OF_LIST

#define TAG_END_OF_LIST   0x0000

Referenced by parse_packet().

◆ TAG_GENERIC_ERROR

#define TAG_GENERIC_ERROR   0x0203

Referenced by parse_pado_tags().

◆ TAG_HDR_SIZE

#define TAG_HDR_SIZE   4

Referenced by parse_packet(), and send_padi().

◆ TAG_HOST_UNIQ

#define TAG_HOST_UNIQ   0x0103

Referenced by parse_hostuniq(), and send_padi().

◆ TAG_RELAY_SESSION_ID

#define TAG_RELAY_SESSION_ID   0x0110

◆ TAG_SERVICE_NAME

#define TAG_SERVICE_NAME   0x0101

Referenced by parse_pado_tags(), and send_padi().

◆ TAG_SERVICE_NAME_ERROR

#define TAG_SERVICE_NAME_ERROR   0x0201

Referenced by parse_pado_tags().

◆ TAG_VENDOR_SPECIFIC

#define TAG_VENDOR_SPECIFIC   0x0105

Typedef Documentation

◆ PacketCriteria

typedef struct PacketCriteriaStruct PacketCriteria

◆ parse_func

typedef void parse_func(uint16_t type, uint16_t len, unsigned char *data, void *extra)

◆ PPPoEConnection

typedef struct PPPoEConnectionStruct PPPoEConnection

◆ PPPoEPacket

typedef struct PPPoEPacketStruct PPPoEPacket

◆ PPPoETag

typedef struct PPPoETagStruct PPPoETag

Function Documentation

◆ check_room()

int check_room ( PPPoEConnection * conn,
unsigned char * cursor,
unsigned char * start,
uint16_t len )
static

References ADD2LOG, PPPoEConnectionStruct::ifname, and MAX_PPPOE_PAYLOAD.

Referenced by send_padi().

◆ close_intefaces()

void close_intefaces ( int n,
PPPoEConnection * conns )
static

References PPPoEConnectionStruct::fd.

Referenced by discovery().

◆ discovery()

void discovery ( int n,
PPPoEConnection * conns )
static

References ADD2LOG, close_intefaces(), MAX_ATTEMPTS, open_interfaces(), send_padi(), and wait_for_pado().

Referenced by hd_scan_pppoe().

◆ hd_scan_pppoe()

void hd_scan_pppoe ( hd_data_t * hd_data2)

References ADD2LOG, s_hd_t::base_class, bc_network_interface, discovery(), PPPoEConnectionStruct::fd, PPPoEConnectionStruct::hd, hd_data, hd_probe_feature(), hd_id_t::id, PPPoEConnectionStruct::ifname, s_hd_t::is, mod_pppoe, new_mem(), s_hd_t::next, s_hd_t::is_s::pppoe, pr_pppoe, PROGRESS, sc_nif_ethernet, s_hd_t::sub_class, and s_hd_t::unix_dev_name.

Referenced by hd_scan_no_hal().

◆ open_interfaces()

int open_interfaces ( int n,
PPPoEConnection * conns )
static

References ADD2LOG, ETH_PPPOE_DISCOVERY, PPPoEConnectionStruct::fd, PPPoEConnectionStruct::ifname, PPPoEConnectionStruct::my_mac, and NOT_UNICAST.

Referenced by discovery().

◆ packet_for_me()

int packet_for_me ( PPPoEConnection * conn,
PPPoEPacket * packet )
static

References PPPoEPacketStruct::ethHdr, PPPoEConnectionStruct::my_mac, parse_hostuniq(), and parse_packet().

Referenced by wait_for_pado().

◆ parse_hostuniq()

void parse_hostuniq ( uint16_t type,
uint16_t len,
unsigned char * data,
void * extra )
static

References TAG_HOST_UNIQ.

Referenced by packet_for_me().

◆ parse_packet()

int parse_packet ( PPPoEConnection * conn,
PPPoEPacket * packet,
parse_func * func,
void * extra )
static

References ADD2LOG, PPPoEConnectionStruct::ifname, PPPoEPacketStruct::length, PPPoEPacketStruct::payload, TAG_END_OF_LIST, TAG_HDR_SIZE, PPPoEPacketStruct::type, and PPPoEPacketStruct::ver.

Referenced by packet_for_me(), and wait_for_pado().

◆ parse_pado_tags()

void parse_pado_tags ( uint16_t type,
uint16_t len,
unsigned char * data,
void * extra )
static

References PacketCriteriaStruct::acname_ok, ADD2LOG, PacketCriteriaStruct::conn, PacketCriteriaStruct::error, PPPoEConnectionStruct::ifname, PacketCriteriaStruct::servicename_ok, TAG_AC_NAME, TAG_AC_SYSTEM_ERROR, TAG_GENERIC_ERROR, TAG_SERVICE_NAME, and TAG_SERVICE_NAME_ERROR.

Referenced by wait_for_pado().

◆ receive_packet()

int receive_packet ( int fd,
PPPoEPacket * pkt,
size_t * size )
static

References ADD2LOG.

Referenced by wait_for_pado().

◆ send_packet()

int send_packet ( int fd,
PPPoEPacket * pkt,
size_t size )
static

References ADD2LOG.

Referenced by send_padi().

◆ send_padi()

int send_padi ( int n,
PPPoEConnection * conns )
static

References ADD2LOG, check_room(), PPPoEPacketStruct::code, CODE_PADI, ETH_PPPOE_DISCOVERY, PPPoEPacketStruct::ethHdr, PPPoEConnectionStruct::fd, HDR_SIZE, PPPoEConnectionStruct::ifname, PPPoEPacketStruct::length, PPPoETagStruct::length, PPPoEConnectionStruct::my_mac, PPPoEPacketStruct::payload, PPPoETagStruct::payload, PPPoEConnectionStruct::received_pado, send_packet(), PPPoEPacketStruct::session, TAG_HDR_SIZE, TAG_HOST_UNIQ, TAG_SERVICE_NAME, PPPoEPacketStruct::type, PPPoETagStruct::type, and PPPoEPacketStruct::ver.

Referenced by discovery().

◆ wait_for_pado()

int wait_for_pado ( int n,
PPPoEConnection * conns )
static

References PacketCriteriaStruct::acname_ok, ADD2LOG, PPPoEPacketStruct::code, CODE_PADO, PacketCriteriaStruct::conn, PacketCriteriaStruct::error, PPPoEPacketStruct::ethHdr, PPPoEConnectionStruct::fd, HDR_SIZE, PPPoEConnectionStruct::ifname, PPPoEPacketStruct::length, NOT_UNICAST, packet_for_me(), PADO_TIMEOUT, parse_packet(), parse_pado_tags(), PPPoEConnectionStruct::peer_mac, receive_packet(), PPPoEConnectionStruct::received_pado, and PacketCriteriaStruct::servicename_ok.

Referenced by discovery().