36#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE) \
37 || defined (USE_LPF_RECEIVE)
38# if defined (USE_LPF_RECEIVE)
39# include <asm/types.h>
40# include <linux/filter.h>
41# define bpf_insn sock_filter
43# include <sys/ioctl.h>
46# if defined (NEED_OSF_PFILT_HACKS)
47# include <net/pfilt.h>
51#include <netinet/in_systm.h>
57#if defined(USE_BPF_SEND) || defined(USE_BPF_RECEIVE) || defined(USE_BPF_HWADDR)
58#include <net/if_types.h>
85#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE)
104 " Please read the README",
105 " section for your operating",
116 log_fatal (
"Can't attach interface %s to bpf device %s: %m",
131#ifndef USE_BPF_RECEIVE
137 log_info (
"Sending on BPF/%s/%s%s%s",
152#ifndef USE_BPF_RECEIVE
158 log_info (
"Disabling output on BPF/%s/%s%s%s",
169#if defined (USE_BPF_RECEIVE) || defined (USE_LPF_RECEIVE)
201#if defined(RELAY_PORT)
271#if defined (DEC_FDDI)
277#if defined (HAVE_TR_SUPPORT)
294#if defined (USE_BPF_RECEIVE)
301#ifdef NEED_OSF_PFILT_HACKS
317 log_fatal (
"BPF version mismatch - recompile DHCP!");
323 log_fatal (
"Can't set immediate mode on bpf device: %m");
325#ifdef NEED_OSF_PFILT_HACKS
328 log_fatal (
"Can't set ALLOWCOPYALL: %m");
333 log_fatal (
"Can't clear pfilt bits: %m");
338 log_fatal (
"Can't set ENBATCH|ENCOPYALL|ENBPFHDR: %m");
342 log_fatal (
"Can't get bpf buffer length: %m");
345 log_fatal (
"Can't allocate %ld bytes for bpf input buffer.",
346 (
long)(
info -> rbuf_max));
347 info -> rbuf_offset = 0;
348 info -> rbuf_len = 0;
361 log_fatal (
"No memory for FDDI filter.");
383#if defined(RELAY_PORT)
398 log_fatal (
"Can't install packet filter program: %m");
400 log_info (
"Listening on BPF/%s/%s%s%s",
403 info -> hw_address.hlen - 1,
404 &
info -> hw_address.hbuf [1]),
417 log_info (
"Disabling input on BPF/%s/%s%s%s",
444 if (!
strcmp (interface -> name,
"fallback"))
454 (
unsigned char *)
ip, &
ibufp, from.s_addr,
456 (
unsigned char *)raw, len);
459 iov [0].iov_base = ((
char *)
hw);
461 iov [1].iov_base = ((
char *)
ip);
463 iov [2].iov_base = (
char *)raw;
464 iov [2].iov_len = len;
473#ifdef USE_BPF_RECEIVE
537 if (
hdr.bh_caplen !=
hdr.bh_datalen) {
540 hdr.bh_hdrlen +
hdr.bh_caplen);
561 hdr.bh_caplen -= offset;
576 hdr.bh_caplen -= offset;
581 if (
hdr.bh_caplen > len) {
626 log_fatal (
"Can't register I/O handle for %s: %s",
633#if defined(USE_BPF_RECEIVE) || defined(USE_BPF_HWADDR)
641 log_fatal(
"Error getting interface information; %m");
649 if ((
p->ifa_addr->sa_family ==
AF_LINK) &&
655 log_fatal(
"No interface called '%s'", name);
661 switch (
sa->sdl_type) {
663#if defined (IFT_L2VLAN)
666 hw->hlen =
sa->sdl_alen + 1;
674 hw->hlen =
sa->sdl_alen + 1;
680 hw->hlen =
sa->sdl_alen + 1;
688 log_fatal(
"Unsupported device type %d for \"%s\"",
702 log_fatal(
"Unsupported device type %d for \"%s\"",
char * print_hw_addr(int htype, const int hlen, const unsigned char *data) const
void if_reinitialize_receive(struct interface_info *)
void maybe_setup_fallback(void)
int supports_multiple_interfaces(struct interface_info *)
void if_deregister_send(struct interface_info *)
void assemble_hw_header(struct interface_info *, unsigned char *, unsigned *, struct hardware *)
ssize_t decode_udp_ip_header(struct interface_info *, unsigned char *, unsigned, struct sockaddr_in *, unsigned, unsigned *, int)
void if_reinitialize_send(struct interface_info *)
isc_result_t fallback_discard(omapi_object_t *)
ssize_t send_packet(struct interface_info *, struct packet *, struct dhcp_packet *, size_t, struct in_addr, struct sockaddr_in *, struct hardware *)
void assemble_udp_ip_header(struct interface_info *, unsigned char *, unsigned *, u_int32_t, u_int32_t, u_int32_t, unsigned char *, unsigned)
int can_receive_unicast_unconfigured(struct interface_info *)
ssize_t receive_packet(struct interface_info *, unsigned char *, size_t, struct sockaddr_in *, struct hardware *)
void get_hw_addr(struct interface_info *info)
void if_register_receive(struct interface_info *)
ssize_t send_fallback(struct interface_info *, struct packet *, struct dhcp_packet *, size_t, struct in_addr, struct sockaddr_in *, struct hardware *)
int can_unicast_without_arp(struct interface_info *)
void if_deregister_receive(struct interface_info *)
void if_register_fallback(struct interface_info *)
ssize_t decode_hw_header(struct interface_info *, unsigned char *, unsigned, struct hardware *)
void if_register_send(struct interface_info *)
int setup_fallback(struct interface_info **fp, const char *file, int line)
int quiet_interface_discovery
int if_readsocket(omapi_object_t *h)
isc_result_t dhcp_interface_remove(omapi_object_t *lp, omapi_object_t *id)
isc_result_t omapi_register_io_object(omapi_object_t *, int(*)(omapi_object_t *), int(*)(omapi_object_t *), isc_result_t(*)(omapi_object_t *), isc_result_t(*)(omapi_object_t *), isc_result_t(*)(omapi_object_t *))
void * dmalloc(size_t, const char *, int)
int log_error(const char *,...) __attribute__((__format__(__printf__
void log_fatal(const char *,...) __attribute__((__format__(__printf__
int int log_info(const char *,...) __attribute__((__format__(__printf__
u_int8_t hbuf[HARDWARE_ADDR_LEN+1]
struct hardware anycast_mac_addr
struct hardware hw_address