coydog/zmap-freebsd
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FreeBSD port initial checkin. This is based on 5cd6f3294c,

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September 9, 2013, before CMake changes. Includes proto_headers.h.
Most or all of __FREEBSD__ changes should, IMHO, be merged back into Linux version.
This should build on Linux with __FREEBSD__ defined.
This commit is contained in:
William Kelly
2013-10-16 22:12:11 -05:00
parent 5cd6f3294c
commit 833c781d94
17 changed files with 862 additions and 59 deletions
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32
src/probe_modules/packet.h
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@@ -1,6 +1,11 @@
#include "state.h"
#include <netinet/ether.h>
#ifdef __FREEBSD__
#include "proto_headers.h"
#else
#include <netinet/ether.h>
#endif /* __FREEBSD__ */
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/ip_icmp.h>
@@ -11,17 +16,32 @@
#define MAX_PACKET_SIZE 4096
/* wbk - proceed w/ caution here w/ all the sizeof's */
typedef unsigned short __attribute__((__may_alias__)) alias_unsigned_short;
void make_eth_header(struct ethhdr *ethh, macaddr_t *src, macaddr_t *dst);
#ifdef __FREEBSD__
void make_eth_header(struct zmap_ethhdr *ethh, macaddr_t *src, macaddr_t *dst);
void make_ip_header(struct zmap_iphdr *iph, uint8_t, uint16_t);
void make_tcp_header(struct zmap_tcphdr*, port_h_t);
#else
void make_eth_header(struct ethhdr *ethh, macaddr_t *src, macaddr_t *dst);
void make_ip_header(struct iphdr *iph, uint8_t, uint16_t);
void make_tcp_header(struct tcphdr*, port_h_t);
#endif
void make_icmp_header(struct icmp *);
#ifdef __FREEBSD__
void make_udp_header(struct zmap_udphdr *udp_header, port_h_t dest_port,
uint16_t len);
void fprintf_ip_header(FILE *fp, struct zmap_iphdr *iph);
void fprintf_eth_header(FILE *fp, struct zmap_ethhdr *ethh);
#else
void make_udp_header(struct udphdr *udp_header, port_h_t dest_port,
uint16_t len);
void fprintf_ip_header(FILE *fp, struct iphdr *iph);
void fprintf_eth_header(FILE *fp, struct ethhdr *ethh);
#endif
static inline unsigned short in_checksum(unsigned short *ip_pkt, int len)
{
@@ -37,7 +57,11 @@ static inline unsigned short in_checksum(unsigned short *ip_pkt, int len)
__attribute__((unused)) static inline unsigned short ip_checksum(
unsigned short *buf)
{
#ifdef __FREEBSD__
return in_checksum(buf, (int) sizeof(struct zmap_iphdr));
#else
return in_checksum(buf, (int) sizeof(struct iphdr));
#endif
}
__attribute__((unused)) static inline unsigned short icmp_checksum(
@@ -47,7 +71,11 @@ __attribute__((unused)) static inline unsigned short icmp_checksum(
}
static __attribute__((unused)) uint16_t tcp_checksum(unsigned short len_tcp,
#ifdef __FREEBSD__
uint32_t saddr, uint32_t daddr, struct zmap_tcphdr *tcp_pkt)
#else
uint32_t saddr, uint32_t daddr, struct tcphdr *tcp_pkt)
#endif
{
alias_unsigned_short *src_addr = (alias_unsigned_short *) &saddr;
alias_unsigned_short *dest_addr = (alias_unsigned_short *) &daddr;